jool-4.0.7/0000775000175000017500000000000013576247347007512 500000000000000jool-4.0.7/missing0000755000175000017500000001533013576247344011026 00000000000000#! /bin/sh # Common wrapper for a few potentially missing GNU programs. scriptversion=2013-10-28.13; # UTC # Copyright (C) 1996-2014 Free Software Foundation, Inc. # Originally written by Fran,cois Pinard , 1996. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. 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Check the 'README' file, it" echo "often tells you about the needed prerequisites for installing" echo "this package. You may also peek at any GNU archive site, in" echo "case some other package contains this missing '$1' program." ;; esac } give_advice "$1" | sed -e '1s/^/WARNING: /' \ -e '2,$s/^/ /' >&2 # Propagate the correct exit status (expected to be 127 for a program # not found, 63 for a program that failed due to version mismatch). exit $st # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: jool-4.0.7/README.md0000664000175000017500000000627513576244253010714 00000000000000# [Jool](https://www.jool.mx) An [SIIT and a NAT64](https://www.jool.mx/en/intro-xlat.html) for Linux. > Note! > > Jool's website is hosted in two separate domains simultaneously: > > - https://www.jool.mx (Might be outdated for a few days at a time) > - https://nicmx.github.io/Jool (Unavailable from IPv6) ## Documentation [See here](https://www.jool.mx/en/documentation.html). You can also [generate the docs yourself](docs/). You might also want to see [contact info](https://www.jool.mx/en/contact.html). ## Credits ### NIC-Mx * Ing. Jorge Cano Puente * Ing. Sergio Adrián Casas Fernández - iam@sergio-casas.com * Ing. Julio Cesar Cossio de Robles * Ing. [Daniel Hernández Félix](https://github.com/dhfelix) - dhernandez@nic.mx * Ing. [Alberto Leiva Popper](https://github.com/ydahhrk) * Ing. Cristóbal Alfonso de León Benítez - cristobal.alfonso14@gmail.com * Ing. Roberto Olivas Alarcón - roaguns@gmail.com * Edgar Martín Rodríguez Bernal - edgarmrb_95@hotmail.com ### ITESM representatives * Dr. Juan Arturo Nolazco - jnolazco@itesm.mx * Ing. Martha Sordia - msordia@itesm.mx ### ITESM students * [Abraham Baez](https://github.com/basuam) - basuam@gmail.com * [Adrian González](https://github.com/Adrian2112) - bernardogzzf@gmail.com * Alan Villela López - avillop@gmail.com * [Angel Cazares](https://github.com/legionAngel) - angel.cazares@live.com * Armando Cifuentes González - 3ncifuentesg@gmail.com * [David Valenzuela](https://github.com/davidvrdz) - david.valenzuela.88@gmail.com * Ing. Elvia Patricia Barrón Cano - epatybarron@gmail.com * [Gabriel Chavez](https://github.com/chavezgu) - gabrielchavez02@gmail.com * Jose Vicente Ramirez - pepermz@gmail.com * [Juan Antonio Osorio](https://github.com/JAORMX) - jaosorior@gmail.com * Juan Francisco Barragán Cantú - p.cantu12@gmail.com * [Luis Fernando Hinojosa](https://github.com/luion) - lf.hinojosa@gmail.com * Manuel Aude - dormam@gmail.com * Mario Gerardo Trevinho - mario_tc88@hotmail.com * [Miguel Alejandro González](https://github.com/magg) - maggonzz@gmail.com * [Nixa Jayu Gpe Rodríguez Dagnino](https://github.com/NixaDagnino) * [Ramiro Nava](https://github.com/ramironava) - ramironava@gmail.com * [Roberto Aceves](https://github.com/robertoaceves) - roberto.aceves@gmail.com * [Roberto Martínez Beltrán](https://github.com/ryuzak) - robmabe.92@gmail.com ### Special Thanks (contributing users) * [airsnail](https://github.com/airsnail) * [Andreas Urke](https://github.com/arurke) * Andreas Rammhold * [Dan Lüdtke](https://www.danrl.com) * Eric Gamess * [Hidekazu Tadokoro](https://github.com/tadokoro) * [ipclouds](https://github.com/ipclouds) * Jan Pokorny - FIT VUTBR * [Masaya YAMAMOTO](https://github.com/pandax381) * [Michael Richardson](http://www.sandelman.ca/mcr) * [paradon](https://github.com/paradon) * [Philar Law](https://github.com/philar) * [Pier Carlo Chiodi](https://pierky.com/) * [Ricardo Salveti](https://github.com/rsalveti) - ricardo@foundries.io * [Sander Steffann](https://github.com/steffann) - sander@steffann.nl * [Stanislav Bogatyrev](https://github.com/realloc) * [tbe](https://github.com/tbe) * [techmotive](https://github.com/techmotive) * Terry Froy * [Tore Anderson](https://github.com/toreanderson) * Washam Fan jool-4.0.7/COPYING0000664000175000017500000004325413507462076010465 00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. jool-4.0.7/aclocal.m40000664000175000017500000012251713576247340011273 00000000000000# generated automatically by aclocal 1.15.1 -*- Autoconf -*- # Copyright (C) 1996-2017 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) m4_ifndef([AC_AUTOCONF_VERSION], [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, [m4_warning([this file was generated for autoconf 2.69. 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The # meanings of the various directives below are documented in DKMS(8). PACKAGE_NAME="jool" # DKMS is quite finicky about the contents of the $PACKAGE_VERSION string. It # will source dkms.conf every time it performs a task, but if the contents # $PACKAGE_VERSION changes between runs, it fails to work correctly. Since we # might dynamically generate the version string (based on output from # "git describe" or "date"), we make sure to generate it only once and save # the result in a cache file so it can be re-used later. # Determine where the actual source tree we're working on is located. # $BASH_SOURCE holds the full path to dkms.conf, which resides in the # apex of Jool's source tree. So we just have to strip off "/dkms.conf". SRCDIR="${BASH_SOURCE%/dkms.conf}" # This cache file will hold the generated $PACKAGE_VERSION string. VERSIONFILE="${SRCDIR}/dkms.package_version.conf" # If necessary (i.e., if we do not have a cache file at this point), then # determine the DKMS version string and store it in the cache file. if test ! -e "${VERSIONFILE}"; then # First, determine the main Jool version based on macros in xlat.h eval "$(sed -n '/^#define *JOOL_VERSION_\(MAJOR\|MINOR\|REV\) / { s/^#define *//; s/ */=/p; }' ${SRCDIR}/src/common/xlat.h)" if test ! -z "$JOOL_VERSION_MAJOR" -a ! -z "$JOOL_VERSION_MINOR" -a \ ! -z "$JOOL_VERSION_REV"; then # OK, we successfully determined the main Jool version. JOOLVER="${JOOL_VERSION_MAJOR}.${JOOL_VERSION_MINOR}.${JOOL_VERSION_REV}" else # We failed to determine the main Jool version. Maybe xlat.h changed # syntax or the JOOL_VERSION_* macros were moved elsewhere? In any case # just use a dummy version string (which must start with a digit, # otherwise "dkms mkdeb" won't work). JOOLVER="0unknown" fi # If we're working on a Git checkout, we'll also want to include output # from "git describe" in the DKMS version string. if test -d "${SRCDIR}/.git"; then # We need to replace '-' with '.' in order to make "dkms mkrpm" and # "dkms mkdeb" to work correctly. GITVER="$(git -C "${SRCDIR}" describe --always | tr - . 2>/dev/null)" # In the unlikely event that "git describe" fails (maybe the admin # has uninstalled git?), we'll use a date-based string instead. test -z "${GITVER}" && GITVER="$(date +%Y%m%d)" # Prepend ".git." to Git version string so its origin is clear. GITVER=".git.${GITVER}" fi # All done - now store the generated version string for later use. echo "# Automatically generated from dkms.conf on $(date -R)" > \ "${VERSIONFILE}" echo "PACKAGE_VERSION=${JOOLVER}${GITVER}" >> "${VERSIONFILE}" fi # At this point we should be able to read in the previously generated # $PACKAGE_VERSION string from the cache file. If this fails, DKMS will # simply fail and complain that the dkms.conf did not set $PACKAGE_VERSION. . "${VERSIONFILE}" # This instructs DKMS to rebuild the Jool kernel modules when necessary, # such as after a kernel upgrade. AUTOINSTALL="yes" MAKE[0]="make -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build/src/mod/common modules \ && make -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build/src/mod/nat64 modules \ && make -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build/src/mod/siit modules" CLEAN="make -C ${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build/src/mod clean" BUILT_MODULE_NAME[0]="jool_common" BUILT_MODULE_LOCATION[0]="src/mod/common/" DEST_MODULE_LOCATION[0]="/extra/" BUILT_MODULE_NAME[1]="jool" BUILT_MODULE_LOCATION[1]="src/mod/nat64/" DEST_MODULE_LOCATION[1]="/extra/" BUILT_MODULE_NAME[2]="jool_siit" BUILT_MODULE_LOCATION[2]="src/mod/siit/" DEST_MODULE_LOCATION[2]="/extra/" jool-4.0.7/Makefile.am0000664000175000017500000000375613576225301011463 00000000000000AUTOMAKE_OPTIONS = foreign # It's taken quite a bit of effort to convince myself that this is probably for # the best. # # Here's the starting point: I'd like to include src/mod in SUBDIRS, because I # want users to be able to compile the whole suite with a single command (make). # (As a bonus, it would also allow me to obviate DIST_SUBDIRS on account of # being identical to SUBDIRS.) # # Here's the problem: dpkg-buildpackage uses SUBDIRS during the package build. # We don't want dpkg-buildpackage to build src/mod, because any kernel update # will render the resulting binaries obsolete and useless. What we want is to # ship the source code. Once installed, DKMS will automatically recompile it # every time the kernel is updated. # # So the solution is to include src/mod in the distribution, but omit its # compilation by default. Hence the SUBDIRS and DIST_SUBDIRS below. # # (I'm aware that I can just modify SUBDIRS using Debian's patch thingamajig, # but as someone whose first ever package is a bunch of freaking kernel modules # coupled with their corresponding userspace tools, libraries and systemd unit # files, the idea of adding even more shit on top makes me sick.) # # So, going back to our starting point, we can't include src/mod in SUBDIRS. # # Here are a couple arguments that help sustain this solution a little further: # # 1. Most users are probably going to install the packages, instead of using the # full-suite make anyway. # 2. The thing about the full-suite make is that it would install the kernel # modules via Kbuild, which we don't recommend in the first place. DKMS is # way better for users. # # Perhaps I've been misunderstandig Kbuild all this time, and is really only # intended for development. As a matter of fact, I'm going to remove it from the # documentation shortly. Screw it. SUBDIRS = src/common src/usr DIST_SUBDIRS = src/common src/mod src/usr # Needed by libtoolize. (Othewise autoreconf complains.) ACLOCAL_AMFLAGS=-I m4 EXTRA_DIST=dkms.conf LICENSE README.md jool-4.0.7/src/0000775000175000017500000000000013576247347010301 500000000000000jool-4.0.7/src/mod/0000775000175000017500000000000013576247347011060 500000000000000jool-4.0.7/src/mod/siit/0000775000175000017500000000000013576247347012030 500000000000000jool-4.0.7/src/mod/siit/jool_siit.c0000664000175000017500000000301513576247347014106 00000000000000#include "mod/common/init.h" #include #include "mod/common/kernel_hook.h" #include "mod/common/log.h" MODULE_LICENSE(JOOL_LICENSE); MODULE_AUTHOR("NIC-ITESM"); MODULE_DESCRIPTION("Stateless IP/ICMP Translation (RFC 7915)"); MODULE_VERSION(JOOL_VERSION_STR); static int iptables_error; static struct xt_target targets[] = { { .name = IPTABLES_SIIT_MODULE_NAME, .revision = 0, .family = NFPROTO_IPV6, .target = target_ipv6, .checkentry = target_checkentry, .targetsize = XT_ALIGN(sizeof(struct target_info)), .me = THIS_MODULE, }, { .name = IPTABLES_SIIT_MODULE_NAME, .revision = 0, .family = NFPROTO_IPV4, .target = target_ipv4, .checkentry = target_checkentry, .targetsize = XT_ALIGN(sizeof(struct target_info)), .me = THIS_MODULE, }, }; static int __init siit_init(void) { int error; pr_debug("Inserting SIIT Jool...\n"); error = jool_siit_get(); if (error) return error; iptables_error = xt_register_targets(targets, ARRAY_SIZE(targets)); if (iptables_error) { log_warn("Error code %d while trying to register the iptables targets.\n" "iptables SIIT Jool will not be available.", iptables_error); } pr_info("SIIT Jool v" JOOL_VERSION_STR " module inserted.\n"); return 0; } static void __exit siit_exit(void) { if (!iptables_error) xt_unregister_targets(targets, ARRAY_SIZE(targets)); jool_siit_put(); pr_info("SIIT Jool v" JOOL_VERSION_STR " module removed.\n"); } module_init(siit_init); module_exit(siit_exit); jool-4.0.7/src/mod/siit/Makefile0000664000175000017500000000114113576247347013405 00000000000000MODULES_DIR ?= /lib/modules/$(shell uname -r) KERNEL_DIR ?= ${MODULES_DIR}/build KBUILD_EXTRA_SYMBOLS = $(src)/../common/Module.symvers #CC=cgcc # More healthy warnings. #CC=gcc-4.9 # Needed to cross-compile Jool for an older machine. ccflags-y := -I$(src)/../.. $(JOOL_FLAGS) #ccflags-y += -Wfatal-errors -Werror obj-m += jool_siit.o all: make -C ${KERNEL_DIR} M=$$PWD JOOL_FLAGS="${JOOL_FLAGS}" modules: make -C ${KERNEL_DIR} M=$$PWD $@ modules_install: make -C ${KERNEL_DIR} M=$$PWD $@ install: modules_install depmod clean: make -C ${KERNEL_DIR} M=$$PWD $@ debug: make all JOOL_FLAGS+=-DDEBUG jool-4.0.7/src/mod/Makefile0000664000175000017500000000107613576247347012444 00000000000000PROJECTS = common siit nat64 OTHER_TARGETS = modules modules_install clean debug all: $(PROJECTS) # Running the dependencies is enough. $(PROJECTS): $(MAKE) -C $@ $(OTHER_TARGETS): $(foreach dir, $(PROJECTS), $(MAKE) -C $(dir) $@;) install: # Don't want to execute depmod thrice; it takes too long. $(foreach dir, $(PROJECTS), $(MAKE) -C $(dir) modules_install;) depmod # This target is needed to generate the upstream tarball. # It's not a typical Kbuild target. distdir: mkdir -p ${distdir} cp -r * ${distdir} .PHONY: $(PROJECTS) $(OTHER_TARGETS) install dist jool-4.0.7/src/mod/common/0000775000175000017500000000000013576247347012350 500000000000000jool-4.0.7/src/mod/common/types.h0000664000175000017500000001107513576247347013611 00000000000000#ifndef SRC_MOD_COMMON_TYPES_H_ #define SRC_MOD_COMMON_TYPES_H_ /** * @file * Kernel-specific core data types and routines. */ #include "common/types.h" #include #include #include "common/xlat.h" #include "mod/common/address.h" #include "mod/common/error_pool.h" /** * An indicator of what a function expects its caller to do with the packet * being translated. */ typedef enum verdict { /** "No problems thus far, processing of the packet can continue." */ VERDICT_CONTINUE, /** * "The packet should be dropped, no matter what." * Typically, this is because it's corrupted. * * Code should rarely use this constant directly. Use drop() or * drop_icmp() instead. */ VERDICT_DROP, /** * This leads to NF_ACCEPT. Used when the packet cannot be translated, * but maybe it was intended for the kernel. * * Code should rarely use this constant directly. Use untranlatable() * or untranslatable_icmp() instead. */ VERDICT_UNTRANSLATABLE, /** * "I need to keep the packet for a while. Do not free, access or modify * it." * * The packet being stored is THE ORIGINAL PACKET. * The "original packet" will be different from the "incoming packet" in * hairpinning. * Therefore, if your stealing/storing code doesn't include * skb_original_skb(), then YOU HAVE A KERNEL PANIC. * * Code should rarely use this constant directly. Use stolen() instead. */ VERDICT_STOLEN, } verdict; /* * To test that you're not mixing up verdicts and int errors: * * 1. Comment the verdict typedef above out. * 2. Uncomment the one below. * 3. Compile. */ /* typedef int *verdict; static int vercontinue = 0; static int verdrop = 1; static int veruntranslatable = 2; static int verstolen = 3; const static verdict VERDICT_CONTINUE = &vercontinue; const static verdict VERDICT_DROP = &verdrop; const static verdict VERDICT_UNTRANSLATABLE = &veruntranslatable; const static verdict VERDICT_STOLEN = &verstolen; */ /** * A tuple is sort of a summary of a packet; it is a quick accesor for several * of its key elements. * * Keep in mind that the tuple's values do not always come from places you'd * normally expect. Unless you know ICMP errors are not involved, if the RFC * says "the tuple's source address", then you *MUST* extract the address from * the tuple, not from the packet. Conversely, if it says "the packet's source * address", then *DO NOT* extract it from the tuple for convenience. See * comments inside for more info. */ struct tuple { /** * Most of the time, this is the packet's _source_ address and layer-4 * identifier. When the packet contains a inner packet, this is the * inner packet's _destination_ address and l4 id. */ union transport_addr src; /** * Most of the time, this is the packet's _destination_ address and * layer-4 identifier. When the packet contains a inner packet, this is * the inner packet's _source_ address and l4 id. */ union transport_addr dst; /** * The packet's network protocol. This is the sure way to know which of * the above union elements should be used. */ l3_protocol l3_proto; /** * The packet's transport protocol that counts. * * Most of the time, this is the packet's simple l4-protocol. When the * packet contains a inner packet, this is the inner packet's * l4-protocol. * * This dictates whether this is a 5-tuple or a 3-tuple * (see is_3_tuple()/is_5_tuple()). */ l4_protocol l4_proto; /** * By the way: There's code that depends on src..l4_id containing the same * value as dst..l4_id when l4_proto == L4PROTO_ICMP (i. e. 3-tuples). */ #define icmp4_id src.addr4.l4 #define icmp6_id src.addr6.l4 }; /** * Returns true if @tuple represents a '3-tuple' (address-address-ICMP id), as * defined by RFC 6146. */ static inline bool is_3_tuple(struct tuple *tuple) { return (tuple->l4_proto == L4PROTO_ICMP); } /** * Returns true if @tuple represents a '5-tuple' * (address-port-address-port-transport protocol), as defined by RFC 6146. */ static inline bool is_5_tuple(struct tuple *tuple) { return !is_3_tuple(tuple); } /** * Prints @tuple pretty in the log. */ void log_tuple(struct tuple *tuple); /** * Returns true if @type (which is assumed to have been extracted from a ICMP * header) represents a packet involved in a ping. */ bool is_icmp6_info(__u8 type); bool is_icmp4_info(__u8 type); /** * Returns true if @type (which is assumed to have been extracted from a ICMP * header) represents a packet which is an error response. */ bool is_icmp6_error(__u8 type); bool is_icmp4_error(__u8 type); #endif /* SRC_MOD_COMMON_TYPES_H_ */ jool-4.0.7/src/mod/common/joold.h0000664000175000017500000000144213576247347013551 00000000000000#ifndef SRC_MOD_NAT64_JOOLD_H_ #define SRC_MOD_NAT64_JOOLD_H_ #include "common/config.h" #include "mod/common/xlator.h" #include "mod/common/db/bib/entry.h" struct joold_queue; /* * Note: "flush" in this context means "send sessions to userspace." The queue * is emptied as a result. */ int joold_setup(void); void joold_teardown(void); struct joold_queue *joold_alloc(struct net *ns); void joold_get(struct joold_queue *queue); void joold_put(struct joold_queue *queue); int joold_sync(struct xlator *jool, void *data, __u32 size); void joold_add(struct xlator *jool, struct session_entry *entry); int joold_test(struct xlator *jool); int joold_advertise(struct xlator *jool); void joold_ack(struct xlator *jool); void joold_clean(struct xlator *jool); #endif /* SRC_MOD_NAT64_JOOLD_H_ */ jool-4.0.7/src/mod/common/address.h0000664000175000017500000000633513576247347014075 00000000000000#ifndef SRC_MOD_COMMON_ADDRESS_H_ #define SRC_MOD_COMMON_ADDRESS_H_ #include #include #include "common/types.h" int str_to_addr4(const char *str, struct in_addr *result); int str_to_addr6(const char *str, struct in6_addr *result); union transport_addr { struct ipv6_transport_addr addr6; struct ipv4_transport_addr addr4; }; int prefix6_parse(char *str, struct ipv6_prefix *result); int prefix4_parse(char *str, struct ipv4_prefix *result); static inline bool addr4_equals(const struct in_addr *a, const struct in_addr *b) { return a->s_addr == b->s_addr; } static inline bool addr6_equals(const struct in6_addr *a, const struct in6_addr *b) { return ipv6_addr_equal(a, b); } bool taddr4_equals(const struct ipv4_transport_addr *a, const struct ipv4_transport_addr *b); bool taddr6_equals(const struct ipv6_transport_addr *a, const struct ipv6_transport_addr *b); bool prefix6_equals(const struct ipv6_prefix *a, const struct ipv6_prefix *b); bool prefix4_equals(const struct ipv4_prefix *a, const struct ipv4_prefix *b); __u32 get_prefix4_mask(const struct ipv4_prefix *prefix); bool prefix4_contains(const struct ipv4_prefix *prefix, const struct in_addr *addr); bool prefix6_contains(const struct ipv6_prefix *prefix, const struct in6_addr *addr); bool prefix4_intersects(const struct ipv4_prefix *p1, const struct ipv4_prefix *p2); __u64 prefix4_get_addr_count(const struct ipv4_prefix *prefix); int prefix4_validate(const struct ipv4_prefix *prefix); int prefix6_validate(const struct ipv6_prefix *prefix); int prefix4_validate_scope(struct ipv4_prefix *prefix, bool force); __u32 addr4_get_bit(const struct in_addr *addr, unsigned int pos); void addr4_set_bit(struct in_addr *addr, unsigned int pos, bool value); __u32 addr6_get_bit(const struct in6_addr *addr, unsigned int pos); void addr6_set_bit(struct in6_addr *addr, unsigned int pos, bool value); /** * foreach_addr4 - iterate over prefix's addresses. * @address: struct in_addr cursor. * @cursor: temporary u64 needed to handle overflow. * @prefix: pointer to the address collection you want to iterate. */ #define foreach_addr4(address, cursor, prefix) \ for (cursor = be32_to_cpu((prefix)->addr.s_addr), \ address = (prefix)->addr; \ cursor < prefix4_next(prefix); \ cursor++, (address).s_addr = cpu_to_be32(cursor)) __u64 prefix4_next(const struct ipv4_prefix *prefix); /** * The kernel has a ipv6_addr_cmp(), but not a ipv4_addr_cmp(). * Of course, that is because in_addrs are, to most intents and purposes, 32-bit * integer values. * But the absence of ipv4_addr_cmp() does makes things look asymmetric. * So, booya. * * @return positive if a2 is bigger, negative if a1 is bigger, zero it they're * equal. */ static inline int ipv4_addr_cmp(const struct in_addr *a1, const struct in_addr *a2) { return memcmp(a1, a2, sizeof(struct in_addr)); } int taddr6_compare(const struct ipv6_transport_addr *a1, const struct ipv6_transport_addr *a2); int taddr4_compare(const struct ipv4_transport_addr *a1, const struct ipv4_transport_addr *a2); bool addr4_is_scope_subnet(const __be32 addr); bool prefix4_has_subnet_scope(struct ipv4_prefix *prefix, struct ipv4_prefix *subnet); #endif /* SRC_MOD_COMMON_ADDRESS_H_ */ jool-4.0.7/src/mod/common/kernel_hook_iptables.c0000664000175000017500000000712113576247347016620 00000000000000#include "mod/common/kernel_hook.h" #include "mod/common/core.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" static verdict find_instance(struct net *ns, const struct target_info *info, struct xlator *result) { int error; error = xlator_find(ns, XF_IPTABLES | info->type, info->iname, result); switch (error) { case 0: return VERDICT_CONTINUE; case -ESRCH: log_warn_once("Some iptables rule linked to Jool instance '%s' sent me a packet,\n" "but the instance does not exist.\n" "Have you created it yet?", info->iname); return VERDICT_UNTRANSLATABLE; case -EINVAL: /* Error message already printed. */ return VERDICT_UNTRANSLATABLE; } WARN(true, "Unknown error code %d while trying to find iptables Jool instance '%s'.", error, info->iname); return VERDICT_UNTRANSLATABLE; } /** * This is the function that the kernel calls whenever the user inserts an * iptables/ip6tables rule that involves the Jool target. */ int target_checkentry(const struct xt_tgchk_param *param) { struct target_info *info = param->targinfo; int error; error = iname_validate(info->iname, false); if (error) { log_err(INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1); return error; } error = xt_validate(info->type); if (error) { log_err(XT_VALIDATE_ERRMSG); return error; } return 0; /* * Probably don't need to check if the instance exists; * it would just annoy the user. * Also, I don't think that we can prevent a user from removing an * instance while the rule exists so it would be pointless anyway. */ } EXPORT_SYMBOL_GPL(target_checkentry); static struct net *action_param_net(const struct xt_action_param *param) { #if LINUX_VERSION_AT_LEAST(4, 10, 0, 8, 0) return param->state->net; #elif LINUX_VERSION_AT_LEAST(4, 4, 0, 9999, 0) return param->net; #else return dev_net(param->in); #endif } static unsigned int verdict2iptables(verdict result) { switch (result) { case VERDICT_STOLEN: return NF_STOLEN; /* This is the happy path. */ case VERDICT_UNTRANSLATABLE: log_debug("Returning packet to the iptables chain."); return XT_CONTINUE; case VERDICT_DROP: log_debug("Dropping packet."); return NF_DROP; case VERDICT_CONTINUE: WARN(true, "At time of writing, Jool core is not supposed to return CONTINUE after the packet is handled.\n" "Please report this to the Jool devs."); return XT_CONTINUE; /* Hmmm... */ } WARN(true, "Unknown verdict: %d", result); return NF_DROP; } /** * This is the function that the kernel calls whenever a packet reaches one of * Jool's ip6tables rules. */ unsigned int target_ipv6(struct sk_buff *skb, const struct xt_action_param *param) { struct xlation *state; verdict result; state = xlation_create(NULL); if (!state) return NF_DROP; result = find_instance(action_param_net(param), param->targinfo, &state->jool); if (result != VERDICT_CONTINUE) goto end; result = core_6to4(skb, state); xlator_put(&state->jool); end: xlation_destroy(state); return verdict2iptables(result); } EXPORT_SYMBOL_GPL(target_ipv6); /** * This is the function that the kernel calls whenever a packet reaches one of * Jool's iptables rules. */ unsigned int target_ipv4(struct sk_buff *skb, const struct xt_action_param *param) { struct xlation *state; verdict result; state = xlation_create(NULL); if (!state) return NF_DROP; result = find_instance(action_param_net(param), param->targinfo, &state->jool); if (result != VERDICT_CONTINUE) goto end; result = core_4to6(skb, state); xlator_put(&state->jool); end: xlation_destroy(state); return verdict2iptables(result); } EXPORT_SYMBOL_GPL(target_ipv4); jool-4.0.7/src/mod/common/translation_state.c0000664000175000017500000000354513576247347016201 00000000000000#include "mod/common/translation_state.h" #include "mod/common/wkmalloc.h" static struct kmem_cache *xlation_cache; int xlation_setup(void) { xlation_cache = kmem_cache_create("jool_xlations", sizeof(struct xlation), 0, 0, NULL); return xlation_cache? 0 : -ENOMEM; } void xlation_teardown(void) { kmem_cache_destroy(xlation_cache); } struct xlation *xlation_create(struct xlator *jool) { struct xlation *state; state = wkmem_cache_alloc("xlation", xlation_cache, GFP_ATOMIC); if (!state) return NULL; xlation_init(state, jool); return state; } void xlation_init(struct xlation *state, struct xlator *jool) { if (jool) memcpy(&state->jool, jool, sizeof(*jool)); memset(&state->in.debug, 0, sizeof(state->in.debug)); memset(&state->out.debug, 0, sizeof(state->out.debug)); state->entries.bib_set = false; state->entries.session_set = false; state->result.icmp = ICMPERR_NONE; state->result.info = 0; } void xlation_destroy(struct xlation *state) { wkmem_cache_free("xlation", xlation_cache, state); } verdict untranslatable(struct xlation *state, enum jool_stat_id stat) { jstat_inc(state->jool.stats, stat); return VERDICT_UNTRANSLATABLE; } verdict untranslatable_icmp(struct xlation *state, enum jool_stat_id stat, enum icmp_errcode icmp, __u32 info) { jstat_inc(state->jool.stats, stat); state->result.icmp = icmp; state->result.info = info; return VERDICT_UNTRANSLATABLE; } verdict drop(struct xlation *state, enum jool_stat_id stat) { jstat_inc(state->jool.stats, stat); return VERDICT_DROP; } verdict drop_icmp(struct xlation *state, enum jool_stat_id stat, enum icmp_errcode icmp, __u32 info) { jstat_inc(state->jool.stats, stat); state->result.icmp = icmp; state->result.info = info; return VERDICT_DROP; } verdict stolen(struct xlation *state, enum jool_stat_id stat) { jstat_inc(state->jool.stats, stat); return VERDICT_STOLEN; } jool-4.0.7/src/mod/common/address_xlat.h0000664000175000017500000000256713576247347015130 00000000000000#ifndef SRC_MOD_COMMON_ADDRESS_XLAT_H_ #define SRC_MOD_COMMON_ADDRESS_XLAT_H_ #include "mod/common/xlator.h" /** * The reason why I need to create a new enum (as opposed to adding * TRY_SOMETHING_ELSE to verdict) is because VERDICT_CONTINUE is the only of its * kind that does not interrupt translation, which allows me to simplify most * verdict handling in the rest of the project: * * verdict = handle_something(...); * if (verdict != VERDICT_CONTINUE) * return verdict; // ie. "interrupt" * * This would simply not be possible if there were other "possibly continue" * verdicts. */ typedef enum addrxlat_verdict { /** "Ok, address translated. Do something else now." */ ADDRXLAT_CONTINUE, /** "Translation failed but caller might use a fallback method." */ ADDRXLAT_TRY_SOMETHING_ELSE, /** "Translation prohibited. Return VERDICT_ACCEPT and forget it." */ ADDRXLAT_ACCEPT, /** "Translation prohibited. Return VERDICT_DROP and forget it." */ ADDRXLAT_DROP, } addrxlat_verdict; struct addrxlat_result { addrxlat_verdict verdict; char const *reason; }; struct addrxlat_result addrxlat_siit64(struct xlator *instance, struct in6_addr *in, struct result_addrxlat64 *out); struct addrxlat_result addrxlat_siit46(struct xlator *instance, __be32 in, struct result_addrxlat46 *out, bool enable_eam, bool enable_blacklists); #endif /* SRC_MOD_COMMON_ADDRESS_XLAT_H_ */ jool-4.0.7/src/mod/common/atomic_config.h0000664000175000017500000000037313576247347015245 00000000000000#ifndef SRC_MOD_COMMON_ATOMIC_CONFIG_H_ #define SRC_MOD_COMMON_ATOMIC_CONFIG_H_ #include "common/config.h" int atomconfig_add(char *iname, xlator_type xt, void *config, size_t config_len, bool force); #endif /* SRC_MOD_COMMON_ATOMIC_CONFIG_H_ */ jool-4.0.7/src/mod/common/wrapper-types.c0000664000175000017500000000003213576247347015251 00000000000000#include "common/types.c" jool-4.0.7/src/mod/common/error_pool.h0000664000175000017500000000063213576247347014624 00000000000000#ifndef SRC_MOD_COMMON_ERROR_POOL_H_ #define SRC_MOD_COMMON_ERROR_POOL_H_ #include void error_pool_setup(void); void error_pool_teardown(void); void error_pool_activate(void); void error_pool_add_message(char *msg); int error_pool_has_errors(void); int error_pool_get_message(char **out_message, size_t *msg_len); void error_pool_deactivate(void); #endif /* SRC_MOD_COMMON_ERROR_POOL_H_ */ jool-4.0.7/src/mod/common/route_in.c0000664000175000017500000000060613576247347014262 00000000000000#include "mod/common/route.h" #include "mod/common/log.h" int route4_input(struct sk_buff *skb) { struct iphdr *hdr; int error; if (!skb->dev) { log_err("skb lacks an incoming device."); return -EINVAL; } hdr = ip_hdr(skb); error = ip_route_input(skb, hdr->daddr, hdr->saddr, hdr->tos, skb->dev); if (error) log_debug("ip_route_input failed: %d", error); return error; } jool-4.0.7/src/mod/common/wrapper-globals.c0000664000175000017500000000003413576247347015532 00000000000000#include "common/globals.c" jool-4.0.7/src/mod/common/rtrie.h0000664000175000017500000000521513576247347013571 00000000000000#ifndef SRC_MOD_COMMON_RTRIE_H_ #define SRC_MOD_COMMON_RTRIE_H_ /** * @file * A Radix Trie. * * Why don't we use the kernel's radix trie instead? * Because it's only good for keys long-sized; we need 128-bit keys. */ #include #include struct rtrie_key { __u8 *bytes; /* In bits; not bytes. */ __u8 len; }; enum rtrie_color { COLOR_BLACK, COLOR_WHITE, }; /** * Some fields here are RCU-friendly and others aren't. * * RCU-friendly fields can be dereferenced in RCU-protected areas happily, * and of course MUST NOT BE EDITED while the node is in the trie. * * RCU-unfriendly fields must not be touched outside the domain of the trie's * lock. */ struct rtrie_node { /** RCU-friendly. */ struct rtrie_node __rcu *left; /** RCU-friendly. */ struct rtrie_node __rcu *right; /** NOT RCU-friendly. */ struct rtrie_node *parent; /** * RCU-friendly. * * If you want to assign a different value here, consider: * * - Black nodes cannot be upgraded into white nodes since white nodes * are supposed to contain a value (black nodes only need a key). * - White nodes can be downgraded into black nodes as long as they're * not attached to tries. */ enum rtrie_color color; /** RCU-friendly. */ struct rtrie_key key; /** * This is used to foreach all the nodes (whether black or white). * * NOT RCU-friendly. */ struct list_head list_hook; /* The value hangs off end. RCU-friendly. */ }; struct rtrie { /** The tree. */ struct rtrie_node __rcu *root; /** @root's nodes chained to ease foreaching. */ struct list_head list; /** Size of the values being stored (in bytes). */ size_t value_size; /** * Notice that this is a pointer. * Locking is actually the caller's responsibility; the only reason why * the trie keeps track of it is for the sake of RCU validation. */ struct mutex *lock; }; void rtrie_init(struct rtrie *trie, size_t size, struct mutex *lock); void rtrie_clean(struct rtrie *trie); /* Safe-to-use-during-packet-translation functions */ int rtrie_find(struct rtrie *trie, struct rtrie_key *key, void *result); bool rtrie_contains(struct rtrie *trie, struct rtrie_key *key); bool rtrie_is_empty(struct rtrie *trie); void rtrie_print(char *prefix, struct rtrie *trie); /* Lock-before-using functions. */ int rtrie_add(struct rtrie *trie, void *value, size_t key_offset, __u8 key_len); int rtrie_rm(struct rtrie *trie, struct rtrie_key *key); void rtrie_flush(struct rtrie *trie); typedef int (*rtrie_foreach_cb)(void const *, void *); int rtrie_foreach(struct rtrie *trie, rtrie_foreach_cb cb, void *arg, struct rtrie_key *offset); #endif /* SRC_MOD_COMMON_RTRIE_H_ */ jool-4.0.7/src/mod/common/steps/0000775000175000017500000000000013576247347013506 500000000000000jool-4.0.7/src/mod/common/steps/compute_outgoing_tuple.h0000664000175000017500000000072113576247347020377 00000000000000#ifndef SRC_MOD_NAT64_COMPUTE_OUTGOING_TUPLE_H_ #define SRC_MOD_NAT64_COMPUTE_OUTGOING_TUPLE_H_ /** * @file * Third step in the packet processing algorithm defined in the RFC. * The 3.6 section of RFC 6146 is encapsulated in this module. * Infers a tuple (summary) of the outgoing packet, yet to be created. */ #include "mod/common/translation_state.h" verdict compute_out_tuple(struct xlation *state); #endif /* SRC_MOD_NAT64_COMPUTE_OUTGOING_TUPLE_H_ */ jool-4.0.7/src/mod/common/steps/compute_outgoing_tuple.c0000664000175000017500000000442413576247347020376 00000000000000#include "compute_outgoing_tuple.h" #include "mod/common/log.h" #include "mod/common/rfc6052.h" #include "mod/common/db/bib/db.h" /** * Ensures @state->entries->bib is computed and valid. * (Assuming @state really maps to a databased session, that is.) */ static verdict find_bib(struct xlation *state) { int error; if (state->entries.bib_set) return VERDICT_CONTINUE; error = bib_find(state->jool.nat64.bib, &state->in.tuple, &state->entries); if (error) { /* * Bogus ICMP errors might cause this because Filtering skips * them, so it's not critical. */ log_debug("Session not found. Error code is %d.", error); return untranslatable(state, JSTAT_SESSION_NOT_FOUND); } return VERDICT_CONTINUE; } static int xlat_addr64(struct xlation *state, struct ipv4_transport_addr *addr4) { /* The RFC labels this as "(D', d)". */ struct ipv6_transport_addr *d = &state->in.tuple.dst.addr6; addr4->l4 = d->l4; return __rfc6052_6to4(&state->jool.globals.pool6.prefix, &d->l3, &addr4->l3); } static int xlat_addr46(struct xlation *state, struct ipv6_transport_addr *addr6) { /* The RFC labels this as (S, s). */ struct ipv4_transport_addr *s = &state->in.tuple.src.addr4; addr6->l4 = s->l4; return __rfc6052_4to6(&state->jool.globals.pool6.prefix, &s->l3, &addr6->l3); } verdict compute_out_tuple(struct xlation *state) { struct tuple *in; struct tuple *out; verdict result; log_debug("Step 3: Computing the Outgoing Tuple"); result = find_bib(state); if (result != VERDICT_CONTINUE) return result; in = &state->in.tuple; out = &state->out.tuple; switch (in->l3_proto) { case L3PROTO_IPV6: out->l3_proto = L3PROTO_IPV4; out->l4_proto = in->l4_proto; out->src.addr4 = state->entries.session.src4; if (xlat_addr64(state, &out->dst.addr4)) return untranslatable(state, JSTAT_UNTRANSLATABLE_DST6); if (is_3_tuple(out)) out->dst.addr4.l4 = out->src.addr4.l4; break; case L3PROTO_IPV4: out->l3_proto = L3PROTO_IPV6; out->l4_proto = in->l4_proto; if (xlat_addr46(state, &out->src.addr6)) return untranslatable(state, JSTAT_UNTRANSLATABLE_DST4); out->dst.addr6 = state->entries.session.src6; if (is_3_tuple(out)) out->src.addr6.l4 = out->dst.addr6.l4; break; } log_tuple(out); log_debug("Done step 3."); return VERDICT_CONTINUE; } jool-4.0.7/src/mod/common/steps/filtering_and_updating.h0000664000175000017500000000103313576247347020274 00000000000000#ifndef SRC_MOD_NAT64_FILTERING_AND_UPDATING_H_ #define SRC_MOD_NAT64_FILTERING_AND_UPDATING_H_ /** * @file * Second step of the stateful NAT64 translation algorithm: "Filtering and Updating Binding and * Session Information", as defined in RFC6146 section 3.5. */ #include "mod/common/translation_state.h" #include "mod/common/db/bib/entry.h" verdict filtering_and_updating(struct xlation *state); enum session_fate tcp_est_expire_cb(struct session_entry *session, void *arg); #endif /* SRC_MOD_NAT64_FILTERING_AND_UPDATING_H_ */ jool-4.0.7/src/mod/common/steps/handling_hairpinning_nat64.c0000664000175000017500000000404013576247347020756 00000000000000#include "mod/common/steps/handling_hairpinning_nat64.h" #include "mod/common/log.h" #include "mod/common/rfc7915/core.h" #include "mod/common/steps/send_packet.h" #include "mod/common/steps/compute_outgoing_tuple.h" #include "mod/common/steps/filtering_and_updating.h" #include "mod/common/db/pool4/db.h" /** * Checks whether "pkt" is a hairpin packet. * * @param pkt outgoing packet the NAT64 would send if it's not a hairpin. * @return whether pkt is a hairpin packet. */ bool is_hairpin_nat64(struct xlation *state) { if (state->out.tuple.l3_proto == L3PROTO_IPV6) return false; /* * This collides with RFC 6146. * The RFC says "packet (...) destination address", but I'm using * "tuple destination address". * I mean you can throw tomatoes, but this makes lot more sense to me. * Otherwise Jool would hairpin ICMP errors that were actually intended * for its node. It might take a miracle for these packets to exist, * but hey, why the hell not. */ return pool4db_contains(state->jool.nat64.pool4, state->jool.ns, state->out.tuple.l4_proto, &state->out.tuple.dst.addr4); } /** * Mirrors the core's behavior by processing skb_in as if it was the incoming packet. * * @param skb_in the outgoing packet. Except because it's a hairpin, here it's treated as if it was * the one received from the network. * @param tuple_in skb_in's tuple. * @return whether we managed to U-turn the packet successfully. */ verdict handling_hairpinning_nat64(struct xlation *old) { struct xlation *new; verdict result; log_debug("Step 5: Handling Hairpinning..."); new = xlation_create(&old->jool); if (!new) return VERDICT_DROP; new->in = old->out; result = filtering_and_updating(new); if (result != VERDICT_CONTINUE) goto end; result = compute_out_tuple(new); if (result != VERDICT_CONTINUE) goto end; result = translating_the_packet(new); if (result != VERDICT_CONTINUE) goto end; result = sendpkt_send(new); if (result != VERDICT_CONTINUE) goto end; log_debug("Done step 5."); end: xlation_destroy(new); return result; } jool-4.0.7/src/mod/common/steps/determine_incoming_tuple.h0000664000175000017500000000071313576247347020650 00000000000000#ifndef SRC_MOD_NAT64_DETERMINE_INCOMING_TUPLE_H_ #define SRC_MOD_NAT64_DETERMINE_INCOMING_TUPLE_H_ /** * @file * The first step in the packet processing algorithm defined in the RFC. * The 3.4 section of RFC 6146 is encapsulated in this module. * Creates a tuple (summary) of the incoming packet. */ #include "mod/common/translation_state.h" verdict determine_in_tuple(struct xlation *state); #endif /* SRC_MOD_NAT64_DETERMINE_INCOMING_TUPLE_H_ */ jool-4.0.7/src/mod/common/steps/send_packet.h0000664000175000017500000000162213576247347016060 00000000000000#ifndef SRC_MOD_COMMON_SEND_PACKET_H_ #define SRC_MOD_COMMON_SEND_PACKET_H_ /** * @file * Functions to artificially send homemade packets through the interfaces. * Basically, you initialize sk_buffs and this worries about putting them on the * network. * * We need this because the kernel assumes that when a packet enters a module, * a packet featuring the same layer-3 protocol exits the module. So we can't * just morph IPv4 packets into IPv6 ones and vice-versa; we need to ask the * kernel to drop the original packets and send new ones on our own. */ #include "mod/common/translation_state.h" /** * Puts @state's outgoing skb on the network. * * Note that this function inherits from ip_local_out() and ip6_local_out() the * annoying side effect of freeing "out_skb", EVEN IF IT COULD NOT BE SENT. */ verdict sendpkt_send(struct xlation *state); #endif /* SRC_MOD_COMMON_SEND_PACKET_H_ */ jool-4.0.7/src/mod/common/steps/send_packet.c0000664000175000017500000001066413576247347016061 00000000000000#include "send_packet.h" #include #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/icmp_wrapper.h" #include "mod/common/packet.h" #include "mod/common/route.h" static unsigned int get_nexthop_mtu(struct packet *pkt) { #ifndef UNIT_TESTING return skb_dst(pkt->skb)->dev->mtu; #else return 1500; #endif } /* * Returns true if GSO fixed everything and MTU is no longer an issue. * Returns false if GSO did nothing and MTU needs to be addressed still. * No other outcomes. */ static bool handle_gso(struct packet *in) { /* * This is how I understand GSO: * * If gso_size > 0, then the skb is meant to be somehow "divided" (IP * fragmented or TCP segmented) at some point regardless of DF and * skb->ignore_df due to local reasons. * * (For example, one such reason might be that the packet was generated * locally, made to length massively because of a large write() buffer, * and meant to be divided as late as possible. Though Jool does not * translate its own namespace's traffic, this can happen when * forwarding traffic from some other namespace, because virtual * interfaces do not respect MTU. Again, packets are meant to be divided * as late as possible, which usually means "in the outgoing physical * interface". If the packet is only traveling through namespaces, it * can very well never be divided despite violating every MTU along the * way.) * * Therefore, if GSO is intended to happen, Jool should usually not * bounce Fragmentation Neededs back. * * The details on how this should be implemented, however, are a little * dodgy to me. Should I pay attention to type flags other than * SKB_GSO_TCPV4 and SKB_GSO_TCPV6? Why does SKB_GSO_UDP not care about * the network layer's protocol? What if gso_size does not exceed the * MTU of the next interface, but does exceed the MTU of some future * interface? This code will probably need to evolve depending on future * experience, and this first version tries to be as conservative as * possible. * * For reference, this code works correctly on TCP packets traveling * through only veth pair interfaces, and was prompted by this bug * report: * https://mail-lists.nic.mx/pipermail/jool-list/2018-July/000198.html * Anything else might or might not work. * * Handle this code with care. Offloading is a very awkwardly convoluted * topic. * * TODO https://www.kernel.org/doc/Documentation/networking/segmentation-offloads.txt * This documentations talks about some SCTP quirk. I'm not yet sure if * it affects us. */ return skb_is_gso(in->skb); } static verdict whine_if_too_big(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; unsigned int len; unsigned int mtu; if (handle_gso(in)) return VERDICT_CONTINUE; if (pkt_l3_proto(in) == L3PROTO_IPV4 && !is_df_set(pkt_ip4_hdr(in))) return VERDICT_CONTINUE; len = pkt_len(out); mtu = get_nexthop_mtu(out); if (len > mtu) { /* * We don't have to worry about ICMP errors causing this because * the translate code already truncates them. */ log_debug("Packet is too big (len: %u, mtu: %u).", len, mtu); switch (pkt_l3_proto(out)) { case L3PROTO_IPV6: mtu = max(576u, mtu - 20u); break; case L3PROTO_IPV4: mtu = max(1280u, mtu + 20u); break; } return drop_icmp(state, JSTAT_PKT_TOO_BIG, ICMPERR_FRAG_NEEDED, mtu); } return VERDICT_CONTINUE; } verdict sendpkt_send(struct xlation *state) { struct packet *out = &state->out; verdict result; int error; if (!route(state->jool.ns, out)) { kfree_skb(out->skb); return untranslatable(state, JSTAT_FAILED_ROUTES); } out->skb->dev = skb_dst(out->skb)->dev; log_debug("Sending skb."); result = whine_if_too_big(state); if (result != VERDICT_CONTINUE) { kfree_skb(out->skb); return result; } #if LINUX_VERSION_AT_LEAST(3, 16, 0, 7, 2) out->skb->ignore_df = true; /* FFS, kernel. */ #else out->skb->local_df = true; /* FFS, kernel. */ #endif /* skb_log(out->skb, "Translated packet"); */ /* * Implicit kfree_skb(out->skb) here. * * At time of writing, RHEL hasn't yet upgraded to the messy version of * dst_output(). */ #if LINUX_VERSION_AT_LEAST(4, 4, 0, 8, 0) error = dst_output(state->jool.ns, NULL, out->skb); #else error = dst_output(out->skb); #endif if (error) { log_debug("dst_output() returned errcode %d.", error); return drop(state, JSTAT_DST_OUTPUT); } return VERDICT_CONTINUE; } jool-4.0.7/src/mod/common/steps/determine_incoming_tuple.c0000664000175000017500000002200513576247347020641 00000000000000#include "mod/common/steps/determine_incoming_tuple.h" #include "mod/common/icmp_wrapper.h" #include "mod/common/ipv6_hdr_iterator.h" #include "mod/common/log.h" #include "mod/common/stats.h" /* * There are several points in this module where the RFC says "drop the packet", * but Jool "accepts" it instead. * This is because of Netfilter idiosyncrasies. The RFC probably assumes a NAT64 * wouldn't be positioned exactly where Netfilter hooks run. * Every one of these RFC mismatches should be commented. */ /** * ipv4_extract_l4_hdr - Assumes that @hdr_ipv4 is part of a packet, and returns * a pointer to the chunk of data after it. * * Skips IPv4 options if any. */ static void *ipv4_extract_l4_hdr(struct iphdr *hdr_ipv4) { return ((void *) hdr_ipv4) + (hdr_ipv4->ihl << 2); } /** * unknown_inner_proto - whenever this function is called, the RFC says the * packet should be dropped, but Jool is accepting it instead. * * I made it into a function so I wouldn't have to replicate the rationale: * * If the packet is an ICMP error that contains a packet of unknown transport * protocol, we couldn't have possibly translated the packet that caused the * error. * Therefore, the original packet came from this host... or it's just crafted * garbage. * Either way, Linux should be the one who decides the fate of the ICMP error. */ static verdict unknown_inner_proto(struct xlation *state, __u8 proto) { log_debug("Packet's inner packet is not UDP, TCP or ICMP (%u).", proto); return untranslatable(state, JSTAT_UNKNOWN_PROTO_INNER); } static void ipv4_udp(struct xlation *state) { struct packet *pkt = &state->in; struct tuple *tuple4 = &pkt->tuple; tuple4->src.addr4.l3.s_addr = pkt_ip4_hdr(pkt)->saddr; tuple4->src.addr4.l4 = be16_to_cpu(pkt_udp_hdr(pkt)->source); tuple4->dst.addr4.l3.s_addr = pkt_ip4_hdr(pkt)->daddr; tuple4->dst.addr4.l4 = be16_to_cpu(pkt_udp_hdr(pkt)->dest); tuple4->l3_proto = L3PROTO_IPV4; tuple4->l4_proto = L4PROTO_UDP; } static void ipv4_tcp(struct xlation *state) { struct packet *pkt = &state->in; struct tuple *tuple4 = &pkt->tuple; tuple4->src.addr4.l3.s_addr = pkt_ip4_hdr(pkt)->saddr; tuple4->src.addr4.l4 = be16_to_cpu(pkt_tcp_hdr(pkt)->source); tuple4->dst.addr4.l3.s_addr = pkt_ip4_hdr(pkt)->daddr; tuple4->dst.addr4.l4 = be16_to_cpu(pkt_tcp_hdr(pkt)->dest); tuple4->l3_proto = L3PROTO_IPV4; tuple4->l4_proto = L4PROTO_TCP; } static verdict ipv4_icmp_info(struct xlation *state) { struct packet *pkt = &state->in; struct tuple *tuple4 = &pkt->tuple; tuple4->src.addr4.l3.s_addr = pkt_ip4_hdr(pkt)->saddr; tuple4->src.addr4.l4 = be16_to_cpu(pkt_icmp4_hdr(pkt)->un.echo.id); tuple4->dst.addr4.l3.s_addr = pkt_ip4_hdr(pkt)->daddr; tuple4->dst.addr4.l4 = tuple4->src.addr4.l4; tuple4->l3_proto = L3PROTO_IPV4; tuple4->l4_proto = L4PROTO_ICMP; return VERDICT_CONTINUE; } static verdict ipv4_icmp_err(struct xlation *state) { struct tuple *tuple4 = &state->in.tuple; struct iphdr *inner_ip4 = (struct iphdr *)(pkt_icmp4_hdr(&state->in) + 1); struct udphdr *inner_udp; struct tcphdr *inner_tcp; struct icmphdr *inner_icmp; tuple4->src.addr4.l3.s_addr = inner_ip4->daddr; tuple4->dst.addr4.l3.s_addr = inner_ip4->saddr; switch (inner_ip4->protocol) { case IPPROTO_UDP: inner_udp = ipv4_extract_l4_hdr(inner_ip4); tuple4->src.addr4.l4 = be16_to_cpu(inner_udp->dest); tuple4->dst.addr4.l4 = be16_to_cpu(inner_udp->source); tuple4->l4_proto = L4PROTO_UDP; break; case IPPROTO_TCP: inner_tcp = ipv4_extract_l4_hdr(inner_ip4); tuple4->src.addr4.l4 = be16_to_cpu(inner_tcp->dest); tuple4->dst.addr4.l4 = be16_to_cpu(inner_tcp->source); tuple4->l4_proto = L4PROTO_TCP; break; case IPPROTO_ICMP: inner_icmp = ipv4_extract_l4_hdr(inner_ip4); if (is_icmp4_error(inner_icmp->type)) { log_debug("Bogus pkt: ICMP error inside ICMP error."); return drop(state, JSTAT_DOUBLE_ICMP4_ERROR); } tuple4->src.addr4.l4 = be16_to_cpu(inner_icmp->un.echo.id); tuple4->dst.addr4.l4 = tuple4->src.addr4.l4; tuple4->l4_proto = L4PROTO_ICMP; break; default: return unknown_inner_proto(state, inner_ip4->protocol); } tuple4->l3_proto = L3PROTO_IPV4; return VERDICT_CONTINUE; } static verdict ipv4_icmp(struct xlation *state) { __u8 type = pkt_icmp4_hdr(&state->in)->type; if (is_icmp4_info(type)) return ipv4_icmp_info(state); if (is_icmp4_error(type)) return ipv4_icmp_err(state); log_debug("Unknown ICMPv4 type: %u", type); /* * Hope the kernel has something to do with the packet. * Neighbor discovery not likely an issue, but see ipv6_icmp() anyway. */ return untranslatable(state, JSTAT_UNKNOWN_ICMP4_TYPE); } static void ipv6_udp(struct xlation *state) { struct packet *pkt = &state->in; struct tuple *tuple6 = &pkt->tuple; tuple6->src.addr6.l3 = pkt_ip6_hdr(pkt)->saddr; tuple6->src.addr6.l4 = be16_to_cpu(pkt_udp_hdr(pkt)->source); tuple6->dst.addr6.l3 = pkt_ip6_hdr(pkt)->daddr; tuple6->dst.addr6.l4 = be16_to_cpu(pkt_udp_hdr(pkt)->dest); tuple6->l3_proto = L3PROTO_IPV6; tuple6->l4_proto = L4PROTO_UDP; } static void ipv6_tcp(struct xlation *state) { struct packet *pkt = &state->in; struct tuple *tuple6 = &pkt->tuple; tuple6->src.addr6.l3 = pkt_ip6_hdr(pkt)->saddr; tuple6->src.addr6.l4 = be16_to_cpu(pkt_tcp_hdr(pkt)->source); tuple6->dst.addr6.l3 = pkt_ip6_hdr(pkt)->daddr; tuple6->dst.addr6.l4 = be16_to_cpu(pkt_tcp_hdr(pkt)->dest); tuple6->l3_proto = L3PROTO_IPV6; tuple6->l4_proto = L4PROTO_TCP; } static verdict ipv6_icmp_info(struct xlation *state) { struct packet *pkt = &state->in; struct tuple *tuple6 = &pkt->tuple; __u16 id = be16_to_cpu(pkt_icmp6_hdr(pkt)->icmp6_identifier); tuple6->src.addr6.l3 = pkt_ip6_hdr(pkt)->saddr; tuple6->src.addr6.l4 = id; tuple6->dst.addr6.l3 = pkt_ip6_hdr(pkt)->daddr; tuple6->dst.addr6.l4 = id; tuple6->l3_proto = L3PROTO_IPV6; tuple6->l4_proto = L4PROTO_ICMP; return VERDICT_CONTINUE; } static verdict ipv6_icmp_err(struct xlation *state) { struct packet *pkt = &state->in; struct tuple *tuple6 = &pkt->tuple; struct ipv6hdr *inner_ip6 = (struct ipv6hdr *)(pkt_icmp6_hdr(pkt) + 1); struct hdr_iterator iterator = HDR_ITERATOR_INIT(inner_ip6); struct udphdr *inner_udp; struct tcphdr *inner_tcp; struct icmp6hdr *inner_icmp; __u16 id; tuple6->src.addr6.l3 = inner_ip6->daddr; tuple6->dst.addr6.l3 = inner_ip6->saddr; hdr_iterator_last(&iterator); switch (iterator.hdr_type) { case NEXTHDR_UDP: inner_udp = iterator.data; tuple6->src.addr6.l4 = be16_to_cpu(inner_udp->dest); tuple6->dst.addr6.l4 = be16_to_cpu(inner_udp->source); tuple6->l4_proto = L4PROTO_UDP; break; case NEXTHDR_TCP: inner_tcp = iterator.data; tuple6->src.addr6.l4 = be16_to_cpu(inner_tcp->dest); tuple6->dst.addr6.l4 = be16_to_cpu(inner_tcp->source); tuple6->l4_proto = L4PROTO_TCP; break; case NEXTHDR_ICMP: inner_icmp = iterator.data; if (is_icmp6_error(inner_icmp->icmp6_type)) { log_debug("Bogus pkt: ICMP error inside ICMP error."); return drop(state, JSTAT_DOUBLE_ICMP6_ERROR); } id = be16_to_cpu(inner_icmp->icmp6_identifier); tuple6->src.addr6.l4 = id; tuple6->dst.addr6.l4 = id; tuple6->l4_proto = L4PROTO_ICMP; break; default: return unknown_inner_proto(state, iterator.hdr_type); } tuple6->l3_proto = L3PROTO_IPV6; return VERDICT_CONTINUE; } static verdict ipv6_icmp(struct xlation *state) { __u8 type = pkt_icmp6_hdr(&state->in)->icmp6_type; if (is_icmp6_info(type)) return ipv6_icmp_info(state); if (is_icmp6_error(type)) return ipv6_icmp_err(state); log_debug("Unknown ICMPv6 type: %u.", type); /* * Netfilter Jool returns ACCEPT instead of DROP because the neighbor * discovery code happens after Jool, apparently (even though it's * layer 2 man, wtf). * This message, which is likely single-hop, might actually be intended * for the kernel. */ return untranslatable(state, JSTAT_UNKNOWN_ICMP6_TYPE); } /** * Extracts relevant data from "skb" and stores it in the "tuple" tuple. * * @param skb packet the data will be extracted from. * @param tuple this function will populate this value using "skb"'s contents. * @return whether packet processing should continue. */ verdict determine_in_tuple(struct xlation *state) { verdict result = VERDICT_CONTINUE; log_debug("Step 1: Determining the Incoming Tuple"); switch (pkt_l3_proto(&state->in)) { case L3PROTO_IPV4: switch (pkt_l4_proto(&state->in)) { case L4PROTO_UDP: ipv4_udp(state); break; case L4PROTO_TCP: ipv4_tcp(state); break; case L4PROTO_ICMP: result = ipv4_icmp(state); break; case L4PROTO_OTHER: goto unknown_proto; } break; case L3PROTO_IPV6: switch (pkt_l4_proto(&state->in)) { case L4PROTO_UDP: ipv6_udp(state); break; case L4PROTO_TCP: ipv6_tcp(state); break; case L4PROTO_ICMP: result = ipv6_icmp(state); break; case L4PROTO_OTHER: goto unknown_proto; } break; } if (result == VERDICT_CONTINUE) log_tuple(&state->in.tuple); log_debug("Done step 1."); return result; unknown_proto: log_debug("NAT64 doesn't support unknown transport protocols."); return untranslatable_icmp(state, JSTAT_UNKNOWN_L4_PROTO, ICMPERR_PROTO_UNREACHABLE, 0); } jool-4.0.7/src/mod/common/steps/filtering_and_updating.c0000664000175000017500000004124113576247347020274 00000000000000#include "mod/common/steps/filtering_and_updating.h" #include #include #include #include #include #include #include #include "mod/common/icmp_wrapper.h" #include "mod/common/log.h" #include "mod/common/rfc6052.h" #include "mod/common/stats.h" #include "mod/common/rfc7915/6to4.h" #include "mod/common/joold.h" #include "mod/common/db/pool4/db.h" #include "mod/common/db/bib/db.h" enum session_fate tcp_est_expire_cb(struct session_entry *session, void *arg) { switch (session->state) { case ESTABLISHED: session->state = TRANS; session->update_time = jiffies; return FATE_PROBE; case V4_FIN_RCV: case V6_FIN_RCV: return FATE_RM; case V4_INIT: case V6_INIT: case TRANS: case V4_FIN_V6_FIN_RCV: WARN(true, "State %d is never supposed to be linked to the established timeout.", session->state); return FATE_RM; } WARN(true, "Unknown state found (%d); removing session entry.", session->state); return FATE_RM; } static void log_entries(struct bib_session *entries) { struct session_entry *session = &entries->session; if (entries->bib_set) { log_debug("BIB entry: %pI6c#%u - %pI4#%u (%s)", &session->src6.l3, session->src6.l4, &session->src4.l3, session->src4.l4, l4proto_to_string(session->proto)); } else { log_debug("BIB entry: None"); } if (entries->session_set) { log_debug("Session entry: %pI6c#%u - %pI6c#%u | %pI4#%u - %pI4#%u (%s)", &session->src6.l3, session->src6.l4, &session->dst6.l3, session->dst6.l4, &session->src4.l3, session->src4.l4, &session->dst4.l3, session->dst4.l4, l4proto_to_string(session->proto)); } else { log_debug("Session entry: None"); } } static verdict succeed(struct xlation *state) { log_entries(&state->entries); /* * Sometimes the session doesn't change as a result of the state * machine's schemes. * No state change, no timeout change, no update time change. * * One might argue that we shouldn't joold the session in those cases. * It's a lot more trouble than it's worth: * * - Calling joold_add() on the TCP SM state functions is incorrect * because the session's update_time and expirer haven't been updated * by that point. So what gets synchronizes is half-baked data. * - Calling joold_add() on decide_fate() is a freaking mess because * we'd need to send the xlator and a boolean (indicating whether this * is packet or timer context) to it and all intermediate functions, * and these functions all already have too many arguments as it is. * It's bad design anyway; the session module belongs to a layer that * shouldn't be aware of the xlator. * - These special no-changes cases are rare. * * So let's simplify everything by just joold_add()ing here. */ if (state->entries.session_set) joold_add(&state->jool, &state->entries.session); return VERDICT_CONTINUE; } /** * This is just a wrapper. Its sole intent is to minimize mess below. */ static int xlat_dst_6to4(struct xlation *state, struct ipv4_transport_addr *dst4) { dst4->l4 = state->in.tuple.dst.addr6.l4; return __rfc6052_6to4(&state->jool.globals.pool6.prefix, &state->in.tuple.dst.addr6.l3, &dst4->l3); } /** * This is just a wrapper. Its sole intent is to minimize mess below. */ static int find_mask_domain(struct xlation *state, struct ipv4_transport_addr *dst, struct mask_domain **masks) { struct ipv6hdr *hdr6 = pkt_ip6_hdr(&state->in); struct route4_args args = { .ns = state->jool.ns, .daddr = dst->l3, .tos = ttp64_xlat_tos(&state->jool.globals, hdr6), .proto = ttp64_xlat_proto(hdr6), .mark = state->in.skb->mark, }; *masks = mask_domain_find(state->jool.nat64.pool4, &state->in.tuple, state->jool.globals.nat64.f_args, &args); if (*masks) return 0; log_debug("There is no mask domain mapped to mark %u.", state->in.skb->mark); return -EINVAL; } /** * Assumes that "tuple" represents a IPv6-UDP or ICMP packet, and filters and * updates based on it. * * This is RFC 6146, first halves of both sections 3.5.1 and 3.5.3. * * @pkt: tuple's packet. This is actually only used for error reporting. * @tuple: summary of the packet Jool is currently translating. */ static verdict ipv6_simple(struct xlation *state) { struct ipv4_transport_addr dst4; struct mask_domain *masks; int error; if (xlat_dst_6to4(state, &dst4)) return drop(state, JSTAT_UNTRANSLATABLE_DST6); if (find_mask_domain(state, &dst4, &masks)) return drop(state, JSTAT_MASK_DOMAIN_NOT_FOUND); error = bib_add6(state, masks, &state->in.tuple, &dst4); mask_domain_put(masks); switch (error) { case 0: return succeed(state); default: /* * Error msg already printed, but since bib_add6() sprawls * messily, let's leave this here just in case. */ log_debug("bib_add6() threw error code %d.", error); return drop(state, JSTAT_BIB6_NOT_FOUND); } } /** * Assumes that "tuple" represents a IPv4-UDP or ICMP packet, and filters and * updates based on it. * * This is RFC 6146, second halves of both sections 3.5.1 and 3.5.3. * * @pkt skb tuple's packet. This is actually only used for error reporting. * @tuple4 tuple summary of the packet Jool is currently translating. * @return VER_CONTINUE if everything went OK, VER_DROP otherwise. */ static verdict ipv4_simple(struct xlation *state) { /* * Because this is the IPv4->IPv6 direction, what the tuple labels * "source" is what the BIB entry labels "destination." * We're inheriting this naming quirk from the RFC. */ struct ipv4_transport_addr *dst4 = &state->in.tuple.src.addr4; struct ipv6_transport_addr dst6; int error; if (__rfc6052_4to6(&state->jool.globals.pool6.prefix, &dst4->l3, &dst6.l3)) return drop(state, JSTAT_UNTRANSLATABLE_DST4); dst6.l4 = dst4->l4; error = bib_add4(state, &dst6, &state->in.tuple); switch (error) { case 0: return succeed(state); case -ESRCH: log_debug("There is no BIB entry for the IPv4 packet."); return untranslatable_icmp(state, JSTAT_BIB4_NOT_FOUND, ICMPERR_ADDR_UNREACHABLE, 0); case -EPERM: log_debug("Packet was blocked by Address-Dependent Filtering."); return drop_icmp(state, JSTAT_ADF, ICMPERR_FILTER, 0); default: log_debug("Errcode %d while finding a BIB entry.", error); return drop(state, JSTAT_UNKNOWN); } } /** * Filtering and updating during the V4 INIT state of the TCP state machine. * Part of RFC 6146 section 3.5.2.2. */ static enum session_fate tcp_v4_init_state(struct session_entry *session, struct xlation *state) { struct packet *pkt = &state->in; switch (pkt_l3_proto(pkt)) { case L3PROTO_IPV6: if (pkt_tcp_hdr(pkt)->syn) { if (session->has_stored) log_debug("Simultaneous Open!"); session->state = ESTABLISHED; session->has_stored = false; return FATE_TIMER_EST; } break; /** * "OMG WHAT IS THIS?!!!!1!1oneone" * * Well, basically, they don't seem to have tested the packet storage * thing all that well while writing the RFC. * * This is a patch that helps type 2 packets work. This is the problem: * * - IPv4 node n4 writes a TCP SYN. Let's call this packet "A". * A arrives to the NAT64. * - Let's say there is a BIB entry but no session that matches A, and * also, ADF is active, so the NAT64 decides to store A. * To this end, it creates and stores session entry [src6=a, dst6=b, * src4=c, dst4=d, proto=TCP, state=V4 INIT, stored=A]. * A is not translated. * * The intent is that the NAT64 is now waiting for an IPv6 packet "B" * that is the Simultaneous Open counterpart to A. If B arrives within 6 * seconds, A is allowed, and if it doesn't, then A is not allowed and * will be ICMP errored. * So far so good, right? * * Wrong. * * The problem is that A created a fully valid session that corresponds * to itself. Because n4 doesn't receive an answer, it retries A. It * does so before the 6-second timeout because sockets are impatient * like that. So A2 arrives at the NAT64 and is translated successfully * because there's now a valid session that matches it. In other words, * A authorized itself despite ADF. * * One might argue that this would be a reason to not treat type 1 and 2 * packets differently: Simply store these bogus sessions away from the * main database and the A2 session lookup will fail. This doesn't work * either, because the whole thing is that this session needs to be * lookupable in the 6-to-4 direction, otherwise B cannot cancel the * ICMP error. * * Also, these sessions are mapped to a valid BIB entry, and as such * need to prevent this entry from dying. This is hard to enforce when * storing these sessions in another database. * * So the core of the issue is that the V4 INIT state lets v4 packets * through even when ADF is active. Hence this switch case. * (Because this only handles type 2 packets, ADF active = packet stored * in this case.) * * Type 1 packets don't suffer from this problem because they aren't * associated with a valid BIB entry. * * Similar to type 1 packets, we will assume that this retry is not * entitled to a session timeout update. Or any session updates, for * that matter. (See pktqueue_add()) */ case L3PROTO_IPV4: if (session->has_stored) { log_debug("Simultaneous Open already exists."); return FATE_DROP; } break; } return FATE_PRESERVE; } /** * Filtering and updating during the V6 INIT state of the TCP state machine. * Part of RFC 6146 section 3.5.2.2. */ static enum session_fate tcp_v6_init_state(struct session_entry *session, struct xlation *state) { struct packet *pkt = &state->in; if (pkt_tcp_hdr(pkt)->syn) { switch (pkt_l3_proto(pkt)) { case L3PROTO_IPV4: session->state = ESTABLISHED; return FATE_TIMER_EST; case L3PROTO_IPV6: return FATE_TIMER_TRANS; } } return FATE_PRESERVE; } /** * Filtering and updating during the ESTABLISHED state of the TCP state machine. * Part of RFC 6146 section 3.5.2.2. */ static enum session_fate tcp_established_state(struct session_entry *session, struct xlation *state) { struct packet *pkt = &state->in; if (pkt_tcp_hdr(pkt)->fin) { switch (pkt_l3_proto(pkt)) { case L3PROTO_IPV4: session->state = V4_FIN_RCV; break; case L3PROTO_IPV6: session->state = V6_FIN_RCV; break; } return FATE_PRESERVE; } else if (pkt_tcp_hdr(pkt)->rst) { session->state = TRANS; return FATE_TIMER_TRANS; } return FATE_TIMER_EST; } static bool handle_rst_during_fin_rcv(struct xlation *state) { return state->jool.globals.nat64.handle_rst_during_fin_rcv; } /** * Filtering and updating during the V4 FIN RCV state of the TCP state machine. * Part of RFC 6146 section 3.5.2.2. */ static enum session_fate tcp_v4_fin_rcv_state(struct session_entry *session, struct xlation *state) { struct packet *pkt = &state->in; struct tcphdr *hdr; if (pkt_l3_proto(pkt) == L3PROTO_IPV6) { hdr = pkt_tcp_hdr(pkt); if (hdr->fin) { session->state = V4_FIN_V6_FIN_RCV; return FATE_TIMER_TRANS; } if (hdr->rst && handle_rst_during_fin_rcv(state)) { /* https://github.com/NICMx/Jool/issues/212 */ return FATE_TIMER_TRANS; } } return FATE_TIMER_EST; } /** * Filtering and updating during the V6 FIN RCV state of the TCP state machine. * Part of RFC 6146 section 3.5.2.2. */ static enum session_fate tcp_v6_fin_rcv_state(struct session_entry *session, struct xlation *state) { struct packet *pkt = &state->in; struct tcphdr *hdr; if (pkt_l3_proto(pkt) == L3PROTO_IPV4) { hdr = pkt_tcp_hdr(pkt); if (hdr->fin) { session->state = V4_FIN_V6_FIN_RCV; return FATE_TIMER_TRANS; } if (hdr->rst && handle_rst_during_fin_rcv(state)) { /* https://github.com/NICMx/Jool/issues/212 */ return FATE_TIMER_TRANS; } } return FATE_TIMER_EST; } /** * Filtering and updating during the V6 FIN + V4 FIN RCV state of the TCP state * machine. * Part of RFC 6146 section 3.5.2.2. */ static enum session_fate tcp_v4_fin_v6_fin_rcv_state(void) { return FATE_PRESERVE; /* Only the timeout can change this state. */ } /** * Filtering and updating done during the TRANS state of the TCP state machine. * Part of RFC 6146 section 3.5.2.2. */ static enum session_fate tcp_trans_state(struct session_entry *session, struct xlation *state) { struct packet *pkt = &state->in; if (!pkt_tcp_hdr(pkt)->rst) { session->state = ESTABLISHED; return FATE_TIMER_EST; } return FATE_PRESERVE; } static enum session_fate tcp_state_machine(struct session_entry *session, void *arg) { switch (session->state) { case ESTABLISHED: return tcp_established_state(session, arg); case V4_INIT: return tcp_v4_init_state(session, arg); case V6_INIT: return tcp_v6_init_state(session, arg); case V4_FIN_RCV: return tcp_v4_fin_rcv_state(session, arg); case V6_FIN_RCV: return tcp_v6_fin_rcv_state(session, arg); case V4_FIN_V6_FIN_RCV: return tcp_v4_fin_v6_fin_rcv_state(); case TRANS: return tcp_trans_state(session, arg); } WARN(true, "Invalid state found: %u.", session->state); return FATE_RM; } /** * IPv6 half of RFC 6146 section 3.5.2. */ static verdict ipv6_tcp(struct xlation *state) { struct ipv4_transport_addr dst4; struct collision_cb cb; struct mask_domain *masks; verdict result; if (xlat_dst_6to4(state, &dst4)) return drop(state, JSTAT_UNTRANSLATABLE_DST6); if (find_mask_domain(state, &dst4, &masks)) return drop(state, JSTAT_MASK_DOMAIN_NOT_FOUND); cb.cb = tcp_state_machine; cb.arg = state; result = bib_add_tcp6(state, masks, &dst4, &cb); mask_domain_put(masks); return (result == VERDICT_CONTINUE) ? succeed(state) : result; } /** * IPv4 half of RFC 6146 section 3.5.2. */ static verdict ipv4_tcp(struct xlation *state) { struct ipv4_transport_addr *dst4 = &state->in.tuple.src.addr4; struct ipv6_transport_addr dst6; struct collision_cb cb; verdict result; if (__rfc6052_4to6(&state->jool.globals.pool6.prefix, &dst4->l3, &dst6.l3)) return drop(state, JSTAT_UNTRANSLATABLE_DST4); dst6.l4 = dst4->l4; cb.cb = tcp_state_machine; cb.arg = state; result = bib_add_tcp4(state, &dst6, &cb); return (result == VERDICT_CONTINUE) ? succeed(state) : result; } #define pool6_contains(state, addr) \ prefix6_contains(&(state)->jool.globals.pool6.prefix, addr) /** * filtering_and_updating - Main F&U routine. Decides if "skb" should be * processed, updating binding and session information. */ verdict filtering_and_updating(struct xlation *state) { struct packet *in = &state->in; struct ipv6hdr *hdr_ip6; verdict result = VERDICT_CONTINUE; log_debug("Step 2: Filtering and Updating"); switch (pkt_l3_proto(in)) { case L3PROTO_IPV6: /* Get rid of hairpinning loops and unwanted packets. */ hdr_ip6 = pkt_ip6_hdr(in); if (pool6_contains(state, &hdr_ip6->saddr)) { log_debug("Hairpinning loop. Dropping..."); return drop(state, JSTAT_HAIRPIN_LOOP); } if (!pool6_contains(state, &hdr_ip6->daddr)) { log_debug("Packet does not belong to pool6."); return untranslatable(state, JSTAT_POOL6_MISMATCH); } /* ICMP errors should not be filtered or affect the tables. */ if (pkt_is_icmp6_error(in)) { log_debug("Packet is ICMPv6 error; skipping step..."); return VERDICT_CONTINUE; } break; case L3PROTO_IPV4: /* Get rid of unexpected packets */ if (!pool4db_contains(state->jool.nat64.pool4, state->jool.ns, in->tuple.l4_proto, &in->tuple.dst.addr4)) { log_debug("Packet does not belong to pool4."); return untranslatable(state, JSTAT_POOL4_MISMATCH); } /* ICMP errors should not be filtered or affect the tables. */ if (pkt_is_icmp4_error(in)) { log_debug("Packet is ICMPv4 error; skipping step..."); return VERDICT_CONTINUE; } break; } /* * Note: I'm sorry, but the remainder of the Filtering and Updating step * is not going to be done in the order in which the RFC explains it. * This is because the BIB has a critical spinlock, and we need to * take out as much work from it as possible. */ switch (pkt_l4_proto(in)) { case L4PROTO_UDP: switch (pkt_l3_proto(in)) { case L3PROTO_IPV6: result = ipv6_simple(state); break; case L3PROTO_IPV4: result = ipv4_simple(state); break; } break; case L4PROTO_TCP: switch (pkt_l3_proto(in)) { case L3PROTO_IPV6: result = ipv6_tcp(state); break; case L3PROTO_IPV4: result = ipv4_tcp(state); break; } break; case L4PROTO_ICMP: switch (pkt_l3_proto(in)) { case L3PROTO_IPV6: if (state->jool.globals.nat64.drop_icmp6_info) { log_debug("Packet is ICMPv6 info (ping); dropping due to policy."); return drop(state, JSTAT_ICMP6_FILTER); } result = ipv6_simple(state); break; case L3PROTO_IPV4: result = ipv4_simple(state); break; } break; case L4PROTO_OTHER: WARN(true, "Unknown layer 4 protocol: %d", pkt_l4_proto(in)); return drop(state, JSTAT_UNKNOWN_L4_PROTO); } log_debug("Done: Step 2."); return result; } jool-4.0.7/src/mod/common/steps/handling_hairpinning_siit.h0000664000175000017500000000046613576247347021007 00000000000000#ifndef SRC_MOD_COMMON_STEPS_HANDLING_HAIRPINNING_H_ #define SRC_MOD_COMMON_STEPS_HANDLING_HAIRPINNING_H_ #include "mod/common/translation_state.h" bool is_hairpin_siit(struct xlation *state); verdict handling_hairpinning_siit(struct xlation *old); #endif /* SRC_MOD_COMMON_STEPS_HANDLING_HAIRPINNING_H_ */ jool-4.0.7/src/mod/common/steps/handling_hairpinning_siit.c0000664000175000017500000000123213576247347020772 00000000000000#include "handling_hairpinning_siit.h" #include "mod/common/log.h" #include "mod/common/rfc7915/core.h" #include "mod/common/steps/send_packet.h" bool is_hairpin_siit(struct xlation *state) { return pkt_is_intrinsic_hairpin(&state->out); } verdict handling_hairpinning_siit(struct xlation *old) { struct xlation new; verdict result; log_debug("Packet is a hairpin. U-turning..."); new.jool = old->jool; new.in = old->out; result = translating_the_packet(&new); if (result != VERDICT_CONTINUE) return result; result = sendpkt_send(&new); if (result != VERDICT_CONTINUE) return result; log_debug("Done hairpinning."); return VERDICT_CONTINUE; } jool-4.0.7/src/mod/common/steps/handling_hairpinning_nat64.h0000664000175000017500000000103313576247347020762 00000000000000#ifndef SRC_MOD_COMMON_HANDLING_HARPINNING_H_ #define SRC_MOD_COMMON_HANDLING_HARPINNING_H_ /** * @file * Fifth and (officially) last step of the Nat64 translation algorithm: "Handling Hairpinning", as * defined in RFC6146 section 3.8. * Recognizes a packet that should return from the same interface and handles it accordingly. */ #include "mod/common/translation_state.h" bool is_hairpin_nat64(struct xlation *state); verdict handling_hairpinning_nat64(struct xlation *state); #endif /* SRC_MOD_COMMON_HANDLING_HARPINNING_H_ */ jool-4.0.7/src/mod/common/kernel_hook.h0000664000175000017500000000110413576247347014735 00000000000000#ifndef SRC_MOD_COMMON_KERNEL_HOOK_H_ #define SRC_MOD_COMMON_KERNEL_HOOK_H_ #include #include #include #include "common/config.h" #include "mod/common/nf_wrapper.h" NF_CALLBACK(hook_ipv6, skb); NF_CALLBACK(hook_ipv4, skb); int target_checkentry(const struct xt_tgchk_param *param); unsigned int target_ipv6(struct sk_buff *skb, const struct xt_action_param *param); unsigned int target_ipv4(struct sk_buff *skb, const struct xt_action_param *param); #endif /* SRC_MOD_COMMON_KERNEL_HOOK_H_ */ jool-4.0.7/src/mod/common/route.h0000664000175000017500000000215013576247347013575 00000000000000#ifndef SRC_MOD_COMMON_ROUTE_H_ #define SRC_MOD_COMMON_ROUTE_H_ #include "mod/common/packet.h" struct route4_args { struct net *ns; struct in_addr daddr; __u8 tos; __u8 proto; __u32 mark; }; /** * Routes @skb (assuming @skb is an IPv4 packet). * * One-liner for filling up a 'flowi' and then calling the kernel's IPv4 * routing function. */ struct dst_entry *__route4(struct route4_args *args, struct sk_buff *skb); /** * Use this function instead of __route4() when you know most of the * args can be extracted safely from @skb (ie. they have been initialized). */ struct dst_entry *route4(struct net *ns, struct packet *out); struct dst_entry *__route6(struct net *ns, struct sk_buff *skb, l4_protocol proto); /** * Same as route4(), except for IPv6. */ struct dst_entry *route6(struct net *ns, struct packet *out); /** * Protocol independent version of route4() and route6(). * ie. it's just a wrapper. */ struct dst_entry *route(struct net *ns, struct packet *pkt); /** * Used when you want to send an ICMP error. */ int route4_input(struct sk_buff *skb); #endif /* SRC_MOD_COMMON_ROUTE_H_ */ jool-4.0.7/src/mod/common/error_pool.c0000664000175000017500000000472513576247347014626 00000000000000#include "mod/common/error_pool.h" #include #include #include #include #include "common/types.h" #include "mod/common/error_pool.h" #include "mod/common/wkmalloc.h" /* * @file * Gathers human-friendly error messages during userspace request handling * so they can be sent to userspace. * * This whole module assumes outside locking. * (see the caller of error_pool_activate() and error_pool_deactivate(). */ struct error_node { char *msg; struct list_head prev_next; }; static __u8 enabled = false; static size_t msg_size = 0; static struct list_head db; void error_pool_setup(void) { INIT_LIST_HEAD(&db); } static void flush_list(void) { struct error_node *node; while (!list_empty(&db)) { node = list_first_entry(&db, struct error_node, prev_next); list_del(&node->prev_next); __wkfree("error_code.msg", node->msg); wkfree(struct error_node, node); } } void error_pool_teardown(void) { flush_list(); } void error_pool_activate(void) { enabled = true; msg_size = 0; } /* Always steals ownership of @msg. */ void error_pool_add_message(char *msg) { /* * This function is used by log_err(), so don't use log_err(). * If you need to print something, use pr_err(). */ struct error_node *node; if (!enabled) goto quit; node = wkmalloc(struct error_node, GFP_ATOMIC); if (!node) goto quit; node->msg = msg; list_add_tail(&node->prev_next, &db); msg_size += strlen(msg); return; quit: __wkfree("error_code.msg", msg); return; } /** * Note: @msg_len includes the NULL chara. */ int error_pool_get_message(char **out_message, size_t *msg_len) { struct error_node *node; char *buffer_pointer; if (!enabled) { pr_err("error_pool_get_message() seems to have been called ouside of an userspace request handler.\n"); return -EINVAL; } (*out_message) = __wkmalloc("Error msg out", msg_size + 1, GFP_KERNEL); if (!(*out_message)) { pr_err("Could not allocate the error pool message!\n") ; return -ENOMEM; } buffer_pointer = (*out_message); while (!list_empty(&db)) { node = list_first_entry(&db, struct error_node, prev_next); strcpy(buffer_pointer, node->msg); buffer_pointer += strlen(node->msg); list_del(&(node->prev_next)); __wkfree("error_code.msg", node->msg); wkfree(struct error_node, node); } buffer_pointer[0] = '\0'; (*msg_len) = msg_size + 1; msg_size = 0; return 0; } void error_pool_deactivate(void) { flush_list(); msg_size = 0; enabled = false; } jool-4.0.7/src/mod/common/init.h0000664000175000017500000000050713576247347013406 00000000000000#ifndef SRC_MOD_COMMON_INIT_H_ #define SRC_MOD_COMMON_INIT_H_ #include int jool_siit_get(void); void jool_siit_put(void); int jool_nat64_get(void (*defrag_enable)(struct net *ns)); void jool_nat64_put(void); bool is_siit_enabled(void); bool is_nat64_enabled(void); #endif /* SRC_MOD_COMMON_INIT_H_ */ jool-4.0.7/src/mod/common/Kbuild0000664000175000017500000000466113576247347013434 00000000000000#CC=cgcc # More healthy warnings. #CC=gcc-4.9 # Needed to cross-compile Jool for an older machine. ccflags-y := -I$(src)/../.. $(JOOL_FLAGS) #ccflags-y += -Wfatal-errors -Werror obj-m += jool_common.o jool_common-objs += rfc7915/4to6.o jool_common-objs += rfc7915/6to4.o jool_common-objs += rfc7915/common.o jool_common-objs += rfc7915/core.o jool_common-objs += address_xlat.o jool_common-objs += kernel_hook_netfilter.o jool_common-objs += kernel_hook_iptables.o jool_common-objs += log.o jool_common-objs += address.o jool_common-objs += atomic_config.o jool_common-objs += global-impl.o jool_common-objs += icmp_wrapper.o jool_common-objs += init.o jool_common-objs += ipv6_hdr_iterator.o jool_common-objs += joold.o jool_common-objs += packet.o jool_common-objs += rfc6052.o jool_common-objs += rtrie.o jool_common-objs += stats.o jool_common-objs += types.o jool_common-objs += translation_state.o jool_common-objs += route_in.o jool_common-objs += route_out.o #jool_common-objs += skbuff.o jool_common-objs += core.o jool_common-objs += error_pool.o jool_common-objs += timer.o jool_common-objs += wkmalloc.o jool_common-objs += wrapper-config.o jool_common-objs += wrapper-globals.o jool_common-objs += wrapper-types.o jool_common-objs += xlator.o jool_common-objs += steps/send_packet.o jool_common-objs += nl/address.o jool_common-objs += nl/atomic_config.o jool_common-objs += nl/nl_handler.o jool_common-objs += nl/nl_core.o jool_common-objs += nl/bib.o jool_common-objs += nl/blacklist4.o jool_common-objs += nl/eam.o jool_common-objs += nl/global.o jool_common-objs += nl/instance.o jool_common-objs += nl/joold.o jool_common-objs += nl/nl_common.o jool_common-objs += nl/pool4.o jool_common-objs += nl/session.o jool_common-objs += nl/stats.o jool_common-objs += db/blacklist4.o jool_common-objs += db/config.o jool_common-objs += db/eam.o jool_common-objs += db/pool.o jool_common-objs += db/rbtree.o jool_common-objs += db/rfc6791v4.o jool_common-objs += db/rfc6791v6.o jool_common-objs += db/pool4/empty.o jool_common-objs += db/pool4/db.o jool_common-objs += db/pool4/rfc6056.o jool_common-objs += db/bib/db.o jool_common-objs += db/bib/entry.o jool_common-objs += db/bib/pkt_queue.o jool_common-objs += steps/determine_incoming_tuple.o jool_common-objs += steps/filtering_and_updating.o jool_common-objs += steps/compute_outgoing_tuple.o jool_common-objs += steps/handling_hairpinning_siit.o jool_common-objs += steps/handling_hairpinning_nat64.o jool-4.0.7/src/mod/common/packet.c0000664000175000017500000004370313576247347013712 00000000000000#include "mod/common/packet.h" #include #include #include #include "common/types.h" #include "common/config.h" #include "common/constants.h" #include "mod/common/icmp_wrapper.h" #include "mod/common/log.h" #include "mod/common/stats.h" #include "mod/common/translation_state.h" /* * Note: Offsets need to be relative to skb->data because that's how * skb_header_pointer() works. */ struct pkt_metadata { /* * Note: The fact that a packet has a fragment header does not imply * that it is fragmented. */ bool has_frag_hdr; /* Offset is from skb->data. Do not use if has_frag_hdr is false. */ unsigned int frag_offset; /* Actual packet protocol; not tuple protocol. */ enum l4_protocol l4_proto; /* Offset is from skb->data. */ unsigned int l4_offset; /* Offset is from skb->data. */ unsigned int payload_offset; }; #define skb_hdr_ptr(skb, offset, buffer) \ skb_header_pointer(skb, offset, sizeof(buffer), &buffer) static bool has_inner_pkt4(__u8 icmp_type) { return is_icmp4_error(icmp_type); } static bool has_inner_pkt6(__u8 icmp6_type) { return is_icmp6_error(icmp6_type); } /* It seems that this should never trigger ICMP errors. */ static verdict truncated(struct xlation *state, const char *what) { log_debug("The %s seems truncated.", what); return drop(state, JSTAT_SKB_TRUNCATED); } static verdict inhdr6(struct xlation *state, const char *msg) { log_debug("%s", msg); return drop(state, JSTAT_HDR6); } static verdict inhdr4(struct xlation *state, const char *msg) { log_debug("%s", msg); return drop(state, JSTAT_HDR4); } static void *skb_offset_to_ptr(struct sk_buff *skb, unsigned int offset) { return ((void *) skb->data) + offset; } /** * Apparently, as of 2007, Netfilter modules can assume they are the sole owners * of their skbs (http://lists.openwall.net/netdev/2007/10/14/13). * I can sort of confirm it by noticing that if it's not the case, editing the * sk_buff structs themselves would be overly cumbersome (since they'd have to * operate on a clone, and bouncing the clone back to Netfilter is kind of * outside Netfilter's design). * This is relevant because we need to call pskb_may_pull(), which might * eventually call pskb_expand_head(), and that panics if the packet is shared. * Therefore, I think this validation (with messy WARN included) is fair. */ static verdict fail_if_shared(struct xlation *state) { if (WARN(skb_shared(state->in.skb), "The packet is shared!")) return drop(state, JSTAT_SKB_SHARED); /* * Keep in mind... "shared" and "cloned" are different concepts. * We know the sk_buff struct is unique, but somebody else might have an * active pointer towards the data area. */ return VERDICT_CONTINUE; } /* * Jool doesn't like making assumptions, but it certainly needs to make a few. * One of them is that the skb_network_offset() offset is meant to be relative * to skb->data. Thing is, this should be part of the contract of the function, * but I don't see it set in stone anywhere. (Not even in the "How skbs work" * guide.) * * Now, it's pretty obvious that this is the case for all such skbuff.h * non-paged offsets at present, but I'm keeping my buttcheeks tight in case * they are meant to be relative to a common pivot rather than a specific one. */ static verdict fail_if_broken_offset(struct xlation *state) { struct sk_buff *skb = state->in.skb; if (WARN(skb_network_offset(skb) != (skb_network_header(skb) - skb->data), "The packet's network header offset is not relative to skb->data.\n" "Translating this packet would break Jool, so dropping.")) return drop(state, JSTAT_L3HDR_OFFSET); return VERDICT_CONTINUE; } static verdict paranoid_validations(struct xlation *state, size_t min_hdr_size) { verdict result; result = fail_if_shared(state); if (result != VERDICT_CONTINUE) return result; result = fail_if_broken_offset(state); if (result != VERDICT_CONTINUE) return result; if (!pskb_may_pull(state->in.skb, min_hdr_size)) return truncated(state, "basic IP header"); return VERDICT_CONTINUE; } /** * Walks through @skb's headers, collecting data and adding it to @meta. * * @hdr6_offset number of bytes between skb->data and the IPv6 header. * * BTW: You might want to read summarize_skb4() first, since it's a lot simpler. */ static verdict summarize_skb6(struct xlation *state, unsigned int hdr6_offset, struct pkt_metadata *meta) { union { struct ipv6_opt_hdr opt; struct frag_hdr frag; struct tcphdr tcp; } buffer; union { struct ipv6_opt_hdr *opt; struct frag_hdr *frag; struct tcphdr *tcp; u8 *nexthdr; } ptr; struct sk_buff *skb = state->in.skb; u8 nexthdr; unsigned int offset; bool is_first = true; ptr.nexthdr = skb_hdr_ptr(skb, hdr6_offset + offsetof(struct ipv6hdr, nexthdr), nexthdr); if (!ptr.nexthdr) return truncated(state, "IPv6 header"); nexthdr = *ptr.nexthdr; offset = hdr6_offset + sizeof(struct ipv6hdr); meta->has_frag_hdr = false; do { switch (nexthdr) { case NEXTHDR_TCP: meta->l4_proto = L4PROTO_TCP; meta->l4_offset = offset; meta->payload_offset = offset; if (is_first) { ptr.tcp = skb_hdr_ptr(skb, offset, buffer.tcp); if (!ptr.tcp) return truncated(state, "TCP header"); meta->payload_offset += tcp_hdr_len(ptr.tcp); } return VERDICT_CONTINUE; case NEXTHDR_UDP: meta->l4_proto = L4PROTO_UDP; meta->l4_offset = offset; meta->payload_offset = is_first ? (offset + sizeof(struct udphdr)) : offset; return VERDICT_CONTINUE; case NEXTHDR_ICMP: meta->l4_proto = L4PROTO_ICMP; meta->l4_offset = offset; meta->payload_offset = is_first ? (offset + sizeof(struct icmp6hdr)) : offset; return VERDICT_CONTINUE; case NEXTHDR_FRAGMENT: ptr.frag = skb_hdr_ptr(skb, offset, buffer.frag); if (!ptr.frag) return truncated(state, "fragment header"); meta->has_frag_hdr = true; meta->frag_offset = offset; is_first = is_first_frag6(ptr.frag); offset += sizeof(struct frag_hdr); nexthdr = ptr.frag->nexthdr; break; case NEXTHDR_HOP: case NEXTHDR_ROUTING: case NEXTHDR_DEST: if (meta->has_frag_hdr) { log_debug("There's a known extension header (%u) after Fragment.", nexthdr); return drop_icmp(state, JSTAT64_FRAG_THEN_EXT, ICMPERR_FILTER, 0); } ptr.opt = skb_hdr_ptr(skb, offset, buffer.opt); if (!ptr.opt) return truncated(state, "extension header"); offset += ipv6_optlen(ptr.opt); nexthdr = ptr.opt->nexthdr; break; default: meta->l4_proto = L4PROTO_OTHER; meta->l4_offset = offset; meta->payload_offset = offset; return VERDICT_CONTINUE; } } while (true); return VERDICT_CONTINUE; /* whatever. */ } static verdict validate_inner6(struct xlation *state, struct pkt_metadata const *outer_meta) { union { struct ipv6hdr ip6; struct frag_hdr frag; struct icmp6hdr icmp; } buffer; union { struct ipv6hdr *ip6; struct frag_hdr *frag; struct icmp6hdr *icmp; } ptr; struct pkt_metadata meta; verdict result; ptr.ip6 = skb_hdr_ptr(state->in.skb, outer_meta->payload_offset, buffer.ip6); if (!ptr.ip6) return truncated(state, "inner IPv6 header"); if (unlikely(ptr.ip6->version != 6)) return inhdr6(state, "Version is not 6."); result = summarize_skb6(state, outer_meta->payload_offset, &meta); if (result != VERDICT_CONTINUE) return result; if (meta.has_frag_hdr) { ptr.frag = skb_hdr_ptr(state->in.skb, meta.frag_offset, buffer.frag); if (!ptr.frag) return truncated(state, "inner fragment header"); if (!is_first_frag6(ptr.frag)) return inhdr6(state, "Inner packet is not a first fragment."); } if (meta.l4_proto == L4PROTO_ICMP) { ptr.icmp = skb_hdr_ptr(state->in.skb, meta.l4_offset, buffer.icmp); if (!ptr.icmp) return truncated(state, "inner ICMPv6 header"); if (has_inner_pkt6(ptr.icmp->icmp6_type)) return inhdr6(state, "Packet inside packet inside packet."); } if (!pskb_may_pull(state->in.skb, meta.payload_offset)) { log_debug("Could not 'pull' the headers out of the skb."); return truncated(state, "inner headers"); } return VERDICT_CONTINUE; } static verdict handle_icmp6(struct xlation *state, struct pkt_metadata const *meta) { union { struct icmp6hdr icmp; struct frag_hdr frag; } buffer; union { struct icmp6hdr *icmp; struct frag_hdr *frag; } ptr; verdict result; ptr.icmp = skb_hdr_ptr(state->in.skb, meta->l4_offset, buffer.icmp); if (!ptr.icmp) return truncated(state, "ICMPv6 header"); if (has_inner_pkt6(ptr.icmp->icmp6_type)) { result = validate_inner6(state, meta); if (result != VERDICT_CONTINUE) return result; } if (xlation_is_siit(state) && meta->has_frag_hdr && is_icmp6_info(ptr.icmp->icmp6_type)) { ptr.frag = skb_hdr_ptr(state->in.skb, meta->frag_offset, buffer.frag); if (!ptr.frag) return truncated(state, "fragment header"); if (is_fragmented_ipv6(ptr.frag)) { log_debug("Packet is a fragmented ping; its checksum cannot be translated."); return drop(state, JSTAT_FRAGMENTED_PING); } } return VERDICT_CONTINUE; } verdict pkt_init_ipv6(struct xlation *state, struct sk_buff *skb) { struct pkt_metadata meta; verdict result; state->in.skb = skb; /* * DO NOT, UNDER ANY CIRCUMSTANCES, EXTRACT ANY BYTES FROM THE SKB'S * DATA AREA DIRECTLY (ie. without using skb_hdr_ptr()) UNTIL YOU KNOW * IT HAS ALREADY BEEN pskb_may_pull()ED. ASSUME THAT EVEN THE MAIN * LAYER 3 HEADER CAN BE PAGED. * * Also, careful in this function and subfunctions. pskb_may_pull() * might change pointers, so you generally don't want to store them. */ result = paranoid_validations(state, sizeof(struct ipv6hdr)); if (result != VERDICT_CONTINUE) return result; log_debug("Packet addresses: %pI6c->%pI6c", &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr); if (skb->len != get_tot_len_ipv6(skb)) return inhdr6(state, "Packet size doesn't match the IPv6 header's payload length field."); result = summarize_skb6(state, skb_network_offset(skb), &meta); if (result != VERDICT_CONTINUE) return result; if (meta.l4_proto == L4PROTO_ICMP) { /* Do not move this to summarize_skb6(), because it risks infinite recursion. */ result = handle_icmp6(state, &meta); if (result != VERDICT_CONTINUE) return result; } if (!pskb_may_pull(skb, meta.payload_offset)) return truncated(state, "headers"); state->in.l3_proto = L3PROTO_IPV6; state->in.l4_proto = meta.l4_proto; state->in.is_inner = 0; state->in.is_hairpin = false; state->in.hdr_frag = meta.has_frag_hdr ? skb_offset_to_ptr(skb, meta.frag_offset) : NULL; skb_set_transport_header(skb, meta.l4_offset); state->in.payload = skb_offset_to_ptr(skb, meta.payload_offset); state->in.original_pkt = &state->in; return VERDICT_CONTINUE; } static verdict validate_inner4(struct xlation *state, struct pkt_metadata *meta) { union { struct iphdr ip4; struct tcphdr tcp; } buffer; union { struct iphdr *ip4; struct tcphdr *tcp; } ptr; unsigned int ihl; unsigned int offset = meta->payload_offset; ptr.ip4 = skb_hdr_ptr(state->in.skb, offset, buffer.ip4); if (!ptr.ip4) return truncated(state, "inner IPv4 header"); ihl = ptr.ip4->ihl << 2; if (ptr.ip4->version != 4) return inhdr4(state, "Inner packet is not IPv4."); if (ihl < 20) return inhdr4(state, "Inner packet's IHL is bogus."); if (ntohs(ptr.ip4->tot_len) < ihl) return inhdr4(state, "Inner packet's total length is bogus."); if (!is_first_frag4(ptr.ip4)) return inhdr4(state, "Inner packet is not first fragment."); offset += ihl; switch (ptr.ip4->protocol) { case IPPROTO_TCP: ptr.tcp = skb_hdr_ptr(state->in.skb, offset, buffer.tcp); if (!ptr.tcp) return truncated(state, "inner TCP header"); offset += tcp_hdr_len(ptr.tcp); break; case IPPROTO_UDP: offset += sizeof(struct udphdr); break; case IPPROTO_ICMP: offset += sizeof(struct icmphdr); break; } if (!pskb_may_pull(state->in.skb, offset)) return truncated(state, "inner headers"); return VERDICT_CONTINUE; } static verdict handle_icmp4(struct xlation *state, struct pkt_metadata *meta) { struct icmphdr buffer, *ptr; verdict result; ptr = skb_hdr_ptr(state->in.skb, meta->l4_offset, buffer); if (!ptr) return truncated(state, "ICMP header"); if (has_inner_pkt4(ptr->type)) { result = validate_inner4(state, meta); if (result != VERDICT_CONTINUE) return result; } if (xlation_is_siit(state) && is_icmp4_info(ptr->type) && is_fragmented_ipv4(ip_hdr(state->in.skb))) { log_debug("Packet is a fragmented ping; its checksum cannot be translated."); return drop(state, JSTAT_FRAGMENTED_PING); } return VERDICT_CONTINUE; } static verdict summarize_skb4(struct xlation *state, struct pkt_metadata *meta) { struct iphdr *hdr4 = ip_hdr(state->in.skb); unsigned int offset; hdr4 = ip_hdr(state->in.skb); offset = skb_network_offset(state->in.skb) + (hdr4->ihl << 2); meta->has_frag_hdr = false; meta->l4_offset = offset; meta->payload_offset = offset; switch (hdr4->protocol) { case IPPROTO_TCP: meta->l4_proto = L4PROTO_TCP; if (is_first_frag4(hdr4)) { struct tcphdr buffer, *ptr; ptr = skb_hdr_ptr(state->in.skb, offset, buffer); if (!ptr) return truncated(state, "TCP header"); meta->payload_offset += tcp_hdr_len(ptr); } return VERDICT_CONTINUE; case IPPROTO_UDP: meta->l4_proto = L4PROTO_UDP; if (is_first_frag4(hdr4)) meta->payload_offset += sizeof(struct udphdr); return VERDICT_CONTINUE; case IPPROTO_ICMP: meta->l4_proto = L4PROTO_ICMP; if (is_first_frag4(hdr4)) meta->payload_offset += sizeof(struct icmphdr); return handle_icmp4(state, meta); } meta->l4_proto = L4PROTO_OTHER; return VERDICT_CONTINUE; } verdict pkt_init_ipv4(struct xlation *state, struct sk_buff *skb) { struct pkt_metadata meta; verdict result; state->in.skb = skb; /* * DO NOT, UNDER ANY CIRCUMSTANCES, EXTRACT ANY BYTES FROM THE SKB'S * DATA AREA DIRECTLY (ie. without using skb_hdr_ptr()) UNTIL YOU KNOW * IT HAS ALREADY BEEN pskb_may_pull()ED. ASSUME THAT EVEN THE MAIN * LAYER 3 HEADER CAN BE PAGED. * * Also, careful in this function and subfunctions. pskb_may_pull() * might change pointers, so you generally don't want to store them. */ result = paranoid_validations(state, sizeof(struct iphdr)); if (result != VERDICT_CONTINUE) return result; log_debug("Packet addresses: %pI4->%pI4", &ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr); result = summarize_skb4(state, &meta); if (result != VERDICT_CONTINUE) return result; if (!pskb_may_pull(skb, meta.payload_offset)) { log_debug("Could not 'pull' the headers out of the skb."); return truncated(state, "headers"); } state->in.l3_proto = L3PROTO_IPV4; state->in.l4_proto = meta.l4_proto; state->in.is_inner = false; state->in.is_hairpin = false; state->in.hdr_frag = NULL; skb_set_transport_header(skb, meta.l4_offset); state->in.payload = skb_offset_to_ptr(skb, meta.payload_offset); state->in.original_pkt = &state->in; return VERDICT_CONTINUE; } /** * skb_pull() is oddly special in that it can return NULL in a situation where * most skb functions would just panic. Which is actually great for skb_pull(); * the kernel good practices thingy rightfully states that we should always * respond to such situations gracefully instead of BUG()ging out like a bunch * of wusses. * * These situations should not arise, however, so we should treat them as * programming errors. (WARN, cancel the packet's translation and then continue * normally.) * * This function takes care of the WARN clutter. "j" stands for "Jool", as * usual. * * Never use skb_pull() directly. */ unsigned char *jskb_pull(struct sk_buff *skb, unsigned int len) { unsigned char *result = skb_pull(skb, len); WARN(!result, "Bug: We tried to pull %u bytes out of a %u-length skb.", len, skb->len); return result; } /** * skb_push() cannot return NULL at present, but maybe someday will. */ unsigned char *jskb_push(struct sk_buff *skb, unsigned int len) { unsigned char *result = skb_push(skb, len); WARN(!result, "Bug: skb_push() returned NULL (skblen:%u len:%u).", skb->len, len); return result; } #define SIMPLE_MIN(a, b) ((a < b) ? a : b) void snapshot_record(struct pkt_snapshot *shot, struct sk_buff *skb) { struct skb_shared_info *shinfo = skb_shinfo(skb); unsigned int limit; unsigned int i; shot->len = skb->len; shot->data_len = skb->data_len; shot->nr_frags = shinfo->nr_frags; limit = SIMPLE_MIN(SNAPSHOT_FRAGS_SIZE, shot->nr_frags); for (i = 0; i < limit; i++) shot->frags[i] = skb_frag_size(&shinfo->frags[i]); /* * Ok so I only have room for SNAPSHOT_FRAGS_SIZE page sizes, unless I * allocate. I don't want to allocate because that's an additional fail * opportunity and I want this to be as unintrusive as possible. * * First of all, since PAGE_SIZE is 4k in my VM, and the typical * Internet MTU is 1500 max, I don't think the packet is going * to have more than one page. * * (Unless IP fragments are being treated as pages, but I don't think * that's the case here because the crashing packet was an ICMP error, * and defrag discards fragmented ICMP errors on reception because they * are BS.) * * Second, even if we get multiple pages, I don't see why would they * have different sizes. Except for the last one, that is. * * (Unless the crashing pages were IP fragments. Again, I don't think * this is the case.) * * Therefore, if the packet has more than SNAPSHOT_FRAGS_SIZE pages, * I'm going to risk it and override the last slottable page size with * the most interesting one. (The last one.) * * Consider that when you're reading the output. */ if (shot->nr_frags > SNAPSHOT_FRAGS_SIZE) { shot->frags[SNAPSHOT_FRAGS_SIZE - 1] = skb_frag_size(&shinfo->frags[shot->nr_frags - 1]); } } void snapshot_report(struct pkt_snapshot *shot, char *prefix) { unsigned int limit; unsigned int i; pr_err("%s len: %u\n", prefix, shot->len); pr_err("%s data_len: %u\n", prefix, shot->data_len); pr_err("%s nr_frags: %u\n", prefix, shot->nr_frags); limit = SIMPLE_MIN(SNAPSHOT_FRAGS_SIZE, shot->nr_frags); for (i = 0; i < limit; i++) pr_err(" %s frag %u: %u\n", prefix, i, shot->frags[i]); } jool-4.0.7/src/mod/common/db/0000775000175000017500000000000013576247347012735 500000000000000jool-4.0.7/src/mod/common/db/pool.h0000664000175000017500000000161513576247347014002 00000000000000#ifndef SRC_MOD_SIIT_POOL_H_ #define SRC_MOD_SIIT_POOL_H_ /** * @file * This is a handler for pool of IPv4 addresses. */ #include "common/types.h" struct addr4_pool; /* Do-not-use-when-you-can't-sleep-functions */ struct addr4_pool *pool_alloc(void); void pool_get(struct addr4_pool *pool); void pool_put(struct addr4_pool *pool); int pool_add(struct addr4_pool *pool, struct ipv4_prefix *prefix, bool force); int pool_rm(struct addr4_pool *pool, struct ipv4_prefix *prefix); int pool_flush(struct addr4_pool *pool); /* Safe-to-use-during-packet-translation functions */ bool pool_contains(struct addr4_pool *pool, struct in_addr *addr); int pool_foreach(struct addr4_pool *pool, int (*func)(struct ipv4_prefix *, void *), void *arg, struct ipv4_prefix *offset); bool pool_is_empty(struct addr4_pool *pool); void pool_print_refcount(struct addr4_pool *pool); #endif /* SRC_MOD_SIIT_POOL_H_ */ jool-4.0.7/src/mod/common/db/rfc6791v4.c0000664000175000017500000000332213576247347014374 00000000000000#include "rfc6791v4.h" #include #include "mod/common/log.h" #include "mod/common/route.h" /** * Returns in @result the IPv4 address the ICMP error should be sourced with. */ static int get_pool_address(struct xlation *state, struct in_addr *result) { struct ipv4_prefix *pool; __u32 n; /* We are going to return the "n"th address. */ if (state->jool.globals.siit.randomize_error_addresses) get_random_bytes(&n, sizeof(n)); else n = pkt_ip6_hdr(&state->in)->hop_limit; pool = &state->jool.globals.siit.rfc6791_prefix4.prefix; n &= ~get_prefix4_mask(pool); result->s_addr = cpu_to_be32(be32_to_cpu(pool->addr.s_addr) | n); return 0; } /** * Returns in @result the IPv4 address the ICMP error should be sourced with, * assuming the RFC6791 pool is empty. */ static int get_host_address(struct xlation *state, struct in_addr *result) { struct dst_entry *dst; __be32 saddr; __be32 daddr; /* * TODO (warning) if the ICMP error hairpins, this route4 fails so * translation is not done. * * I'm a little stuck on how to fix it. If I assign any address, will * that enhance an attacker's ability to ICMP spoof a connection? * Read RFC 5927 and figure it out. */ dst = route4(state->jool.ns, &state->out); if (!dst) return -EINVAL; daddr = pkt_ip4_hdr(&state->out)->daddr; saddr = inet_select_addr(dst->dev, daddr, RT_SCOPE_LINK); if (!saddr) { log_warn_once("Can't find a proper src address to reach %pI4.", &daddr); return -EINVAL; } result->s_addr = saddr; return 0; } int rfc6791v4_find(struct xlation *state, struct in_addr *result) { return state->jool.globals.siit.rfc6791_prefix4.set ? get_pool_address(state, result) : get_host_address(state, result); } jool-4.0.7/src/mod/common/db/rfc6791v4.h0000664000175000017500000000115513576247347014403 00000000000000#ifndef SRC_MOD_SIIT_RFC6791V4_H_ #define SRC_MOD_SIIT_RFC6791V4_H_ /** * @file * This is RFC 6791's pool of addresses. * * "The recommended approach to source selection is to use a single (or * small pool of) public IPv4 address as the source address of the * translated ICMP message and leverage the ICMP extension [RFC5837] to * include the IPv6 address as an Interface IP Address Sub-Object." * * The ICMP extension thing has not been implemented yet. */ #include "mod/common/translation_state.h" int rfc6791v4_find(struct xlation *state, struct in_addr *result); #endif /* SRC_MOD_SIIT_RFC6791V4_H_ */ jool-4.0.7/src/mod/common/db/rfc6791v6.h0000664000175000017500000000115613576247347014406 00000000000000#ifndef SRC_MOD_SIIT_RFC6791V6_H_ #define SRC_MOD_SIIT_RFC6791V6_H_ /** * @file * This is RFC 6791's pool of addresses. * * "The recommended approach to source selection is to use a single (or * small pool of) public IPv4 address as the source address of the * translated ICMP message and leverage the ICMP extension [RFC5837] to * include the IPv6 address as an Interface IP Address Sub-Object." * * The ICMP extension thing has not been implemented yet. */ #include "mod/common/translation_state.h" int rfc6791v6_find(struct xlation *state, struct in6_addr *result); #endif /* SRC_MOD_SIIT_RFC6791V6_H_ */ jool-4.0.7/src/mod/common/db/config.c0000664000175000017500000000500413576247347014265 00000000000000#include "mod/common/db/config.h" #include #include #include #include "common/constants.h" #include "common/globals.h" #include "mod/common/log.h" int globals_init(struct globals *config, xlator_type type, struct config_prefix6 *pool6) { static const __u16 PLATEAUS[] = DEFAULT_MTU_PLATEAUS; int error; if (pool6) { /* TODO (fine) force */ error = validate_pool6(NULL, pool6, true); if (error) return error; } config->status = 0; /* This is never read, but whatever. */ config->enabled = DEFAULT_INSTANCE_ENABLED; if (pool6) config->pool6 = *pool6; else config->pool6.set = false; config->reset_traffic_class = DEFAULT_RESET_TRAFFIC_CLASS; config->reset_tos = DEFAULT_RESET_TOS; config->new_tos = DEFAULT_NEW_TOS; memcpy(config->plateaus.values, &PLATEAUS, sizeof(PLATEAUS)); config->plateaus.count = ARRAY_SIZE(PLATEAUS); switch (type) { case XT_SIIT: config->siit.compute_udp_csum_zero = DEFAULT_COMPUTE_UDP_CSUM0; config->siit.eam_hairpin_mode = DEFAULT_EAM_HAIRPIN_MODE; config->siit.randomize_error_addresses = DEFAULT_RANDOMIZE_RFC6791; config->siit.rfc6791_prefix6.set = false; config->siit.rfc6791_prefix4.set = false; break; case XT_NAT64: config->nat64.drop_icmp6_info = DEFAULT_FILTER_ICMPV6_INFO; config->nat64.src_icmp6errs_better = DEFAULT_SRC_ICMP6ERRS_BETTER; config->nat64.f_args = DEFAULT_F_ARGS; config->nat64.handle_rst_during_fin_rcv = DEFAULT_HANDLE_FIN_RCV_RST; config->nat64.bib.ttl.tcp_est = 1000 * TCP_EST; config->nat64.bib.ttl.tcp_trans = 1000 * TCP_TRANS; config->nat64.bib.ttl.udp = 1000 * UDP_DEFAULT; config->nat64.bib.ttl.icmp = 1000 * ICMP_DEFAULT; config->nat64.bib.bib_logging = DEFAULT_BIB_LOGGING; config->nat64.bib.session_logging = DEFAULT_SESSION_LOGGING; config->nat64.bib.drop_by_addr = DEFAULT_ADDR_DEPENDENT_FILTERING; config->nat64.bib.drop_external_tcp = DEFAULT_DROP_EXTERNAL_CONNECTIONS; config->nat64.bib.max_stored_pkts = DEFAULT_MAX_STORED_PKTS; config->nat64.joold.enabled = DEFAULT_JOOLD_ENABLED; config->nat64.joold.flush_asap = DEFAULT_JOOLD_FLUSH_ASAP; config->nat64.joold.flush_deadline = 1000 * DEFAULT_JOOLD_DEADLINE; config->nat64.joold.capacity = DEFAULT_JOOLD_CAPACITY; config->nat64.joold.max_payload = DEFAULT_JOOLD_MAX_PAYLOAD; break; default: log_err("Unknown translator type: %d", type); return -EINVAL; } return 0; } void prepare_config_for_userspace(struct globals *config, bool pools_empty) { config->status = config->enabled && !pools_empty; } jool-4.0.7/src/mod/common/db/eam.c0000664000175000017500000003001413576247347013561 00000000000000#include "eam.h" #include "common/types.h" #include "mod/common/address.h" #include "mod/common/log.h" #include "mod/common/wkmalloc.h" #define ADDR6_BITS 128 #define ADDR4_BITS 32 #define INIT_KEY(ptr, length) { .bytes = (__u8 *)(ptr), .len = length } #define ADDR_TO_KEY(addr) INIT_KEY(addr, 8 * sizeof(*addr)) #define PREFIX_TO_KEY(prefix) INIT_KEY(&(prefix)->addr, (prefix)->len) /** * Well, it really goes without saying, but I'll say it anyway: * * The fact that @trie6 and @trie4 are protected by RCU means that there will be * small time windows during EAMT updates where an entry will appear in one of * the tries but not in the other. * * This should be fine. It simply means, for example, that when the admin adds * an entry, for a few milliseconds or less, the entry will serve a packet * traveling in the 6-to-4 direction, but not one traveling in the 4-to-6 * direction. Since the user just added the entry, this inconsistency should go * unnoticed or chalked up to timing noise. * * Notice that this only applies to updates to running EAMTs. Atomic * configuration does not fall in this category because the full table is * set up before it is actually committed to serve packets. */ struct eam_table { struct rtrie trie6; struct rtrie trie4; /** * This one is not RCU-friendly. Touch only while you're holding the * mutex. */ u64 count; struct kref refcount; }; static DEFINE_MUTEX(lock); static bool eamt_entry_equals(const struct eamt_entry *eam1, const struct eamt_entry *eam2) { return prefix6_equals(&eam1->prefix6, &eam2->prefix6) && prefix4_equals(&eam1->prefix4, &eam2->prefix4); } /** * validate_prefixes - check @prefix6 and @prefix4 can be joined together to * form a (standalone) legal EAM entry. */ static int validate_prefixes(struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4) { int error; error = prefix6_validate(prefix6); if (error) return error; error = prefix4_validate(prefix4); if (error) return error; if ((ADDR4_BITS - prefix4->len) > (ADDR6_BITS - prefix6->len)) { log_err("The IPv4 suffix length must be smaller or equal than the IPv6 suffix length."); return -EINVAL; } return 0; } static void msg_programming_error(void) { log_err("(Note: This error should have been caught earlier."); log_err("This looks like a bug; please report.)"); } static int collision6(struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4, struct eamt_entry *old, bool force) { if (prefix6->len == old->prefix6.len) { if (prefix4_equals(prefix4, &old->prefix4)) { log_err("The requested entry already exists."); return -EEXIST; } log_err("Existing EAM [%pI6c/%u|%pI4/%u] already contains prefix %pI6c/%u.", &old->prefix6.addr, old->prefix6.len, &old->prefix4.addr, old->prefix4.len, &prefix6->addr, prefix6->len); return -EEXIST; } if (force) return 0; log_err("Prefix %pI6c/%u overlaps with EAM [%pI6c/%u|%pI4/%u].\n" "(Use --force to override this validation.)", &prefix6->addr, prefix6->len, &old->prefix6.addr, old->prefix6.len, &old->prefix4.addr, old->prefix4.len); return -EEXIST; } static int collision4(struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4, struct eamt_entry *old, bool force) { if (prefix4->len == old->prefix4.len) { if (prefix6_equals(prefix6, &old->prefix6)) { log_err("The requested entry already exists."); msg_programming_error(); return -EEXIST; } log_err("Existing EAM [%pI6c/%u|%pI4/%u] already contains prefix %pI4/%u.", &old->prefix6.addr, old->prefix6.len, &old->prefix4.addr, old->prefix4.len, &prefix4->addr, prefix4->len); return -EEXIST; } if (force) return 0; log_err("Prefix %pI4/%u overlaps with EAM [%pI6c/%u|%pI4/%u].\n" "(Use --force to override this validation.)", &prefix4->addr, prefix4->len, &old->prefix6.addr, old->prefix6.len, &old->prefix4.addr, old->prefix4.len); return -EEXIST; } static int validate_overlapping(struct eam_table *eamt, struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4, bool force) { struct eamt_entry old; struct rtrie_key key6 = PREFIX_TO_KEY(prefix6); struct rtrie_key key4 = PREFIX_TO_KEY(prefix4); int error; key6.len = 128; key4.len = 32; error = rtrie_find(&eamt->trie6, &key6, &old); if (!error) { error = collision6(prefix6, prefix4, &old, force); if (error) return error; } error = rtrie_find(&eamt->trie4, &key4, &old); if (!error) { error = collision4(prefix6, prefix4, &old, force); if (error) return error; } return 0; } static void __revert_add6(struct eam_table *eamt, struct ipv6_prefix *prefix6) { struct rtrie_key key = PREFIX_TO_KEY(prefix6); int error; error = rtrie_rm(&eamt->trie6, &key); WARN(error, "Got error %d while trying to remove an EAM I just added.", error); } static int eamt_add6(struct eam_table *eamt, struct eamt_entry *eam) { size_t addr_offset; int error; addr_offset = offsetof(typeof(*eam), prefix6.addr); error = rtrie_add(&eamt->trie6, eam, addr_offset, eam->prefix6.len); if (error == -EEXIST) { log_err("Prefix %pI6c/%u already exists.", &eam->prefix6.addr, eam->prefix6.len); msg_programming_error(); } /* rtrie_print("IPv6 trie after add", &eamt->trie6); */ return error; } static int eamt_add4(struct eam_table *eamt, struct eamt_entry *eam) { size_t addr_offset; int error; addr_offset = offsetof(typeof(*eam), prefix4.addr); error = rtrie_add(&eamt->trie4, eam, addr_offset, eam->prefix4.len); if (error == -EEXIST) { log_err("Prefix %pI4/%u already exists.", &eam->prefix4.addr, eam->prefix4.len); msg_programming_error(); } /* rtrie_print("IPv4 trie after add", &eamt->trie4); */ return error; } int eamt_add(struct eam_table *eamt, struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4, bool force) { struct eamt_entry new; int error; error = validate_prefixes(prefix6, prefix4); if (error) return error; mutex_lock(&lock); error = validate_overlapping(eamt, prefix6, prefix4, force); if (error) goto end; new.prefix6 = *prefix6; new.prefix4 = *prefix4; error = eamt_add6(eamt, &new); if (error) goto end; error = eamt_add4(eamt, &new); if (error) { __revert_add6(eamt, prefix6); goto end; } eamt->count++; end: mutex_unlock(&lock); return error; } static int get_exact6(struct eam_table *eamt, struct ipv6_prefix *prefix, struct eamt_entry *eam) { struct rtrie_key key = PREFIX_TO_KEY(prefix); int error; error = rtrie_find(&eamt->trie6, &key, eam); if (error) return error; return (eam->prefix6.len == prefix->len) ? 0 : -ESRCH; } static int get_exact4(struct eam_table *eamt, struct ipv4_prefix *prefix, struct eamt_entry *eam) { struct rtrie_key key = PREFIX_TO_KEY(prefix); int error; error = rtrie_find(&eamt->trie4, &key, eam); if (error) return error; return (eam->prefix4.len == prefix->len) ? 0 : -ESRCH; } static int __rm(struct eam_table *eamt, struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4) { struct rtrie_key key6 = PREFIX_TO_KEY(prefix6); struct rtrie_key key4 = PREFIX_TO_KEY(prefix4); int error; error = rtrie_rm(&eamt->trie6, &key6); if (error) goto corrupted; error = rtrie_rm(&eamt->trie4, &key4); if (error) goto corrupted; eamt->count--; /* rtrie_print("IPv6 trie after remove", &eamt.trie6); */ /* rtrie_print("IPv4 trie after remove", &eamt.trie4); */ return 0; corrupted: WARN(true, "EAMT entry was extracted from the table, but it no longer seems to be there.\n" "Errcode: %d", error); return error; } static int eamt_rm_lockless(struct eam_table *eamt, struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4) { struct eamt_entry eam6; struct eamt_entry eam4; int error; if (!prefix4) { error = get_exact6(eamt, prefix6, &eam6); return error ? error : __rm(eamt, prefix6, &eam6.prefix4); } if (!prefix6) { error = get_exact4(eamt, prefix4, &eam4); return error ? error : __rm(eamt, &eam4.prefix6, prefix4); } error = get_exact6(eamt, prefix6, &eam6); if (error) return error; error = get_exact4(eamt, prefix4, &eam4); if (error) return error; return eamt_entry_equals(&eam6, &eam4) ? __rm(eamt, prefix6, prefix4) : -ESRCH; } int eamt_rm(struct eam_table *eamt, struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4) { int error; if (WARN(!prefix6 && !prefix4, "Prefixes can't both be NULL")) return -EINVAL; mutex_lock(&lock); error = eamt_rm_lockless(eamt, prefix6, prefix4); mutex_unlock(&lock); return error; } bool eamt_contains6(struct eam_table *eamt, struct in6_addr *addr) { struct rtrie_key key = ADDR_TO_KEY(addr); return rtrie_contains(&eamt->trie6, &key); } bool eamt_contains4(struct eam_table *eamt, __be32 addr) { struct in_addr tmp = { .s_addr = addr }; struct rtrie_key key = ADDR_TO_KEY(&tmp); return rtrie_contains(&eamt->trie4, &key); } /** Contract: Returns 0 or -ESRCH. No other outcomes. */ int eamt_xlat_6to4(struct eam_table *eamt, struct in6_addr *addr6, struct result_addrxlat64 *result) { struct rtrie_key key = ADDR_TO_KEY(addr6); struct eamt_entry *eam; struct in_addr *addr4; unsigned int i; int error; eam = &result->entry.eam; addr4 = &result->addr; /* Find the entry. */ error = rtrie_find(&eamt->trie6, &key, eam); if (error) return error; /* Translate the address. */ *addr4 = eam->prefix4.addr; for (i = 0; i < ADDR4_BITS - eam->prefix4.len; i++) { unsigned int offset4 = eam->prefix4.len + i; unsigned int offset6 = eam->prefix6.len + i; addr4_set_bit(addr4, offset4, addr6_get_bit(addr6, offset6)); } /* I'm assuming the prefix address is already zero-trimmed. */ result->entry.method = AXM_EAMT; return 0; } /** Contract: Returns 0 or -ESRCH. No other outcomes. */ int eamt_xlat_4to6(struct eam_table *eamt, struct in_addr *addr4, struct result_addrxlat46 *result) { struct rtrie_key key = ADDR_TO_KEY(addr4); struct eamt_entry *eam; struct in6_addr *addr6; unsigned int i; int error; eam = &result->entry.eam; addr6 = &result->addr; /* Find the entry. */ error = rtrie_find(&eamt->trie4, &key, eam); if (error) return error; /* Translate the address. */ *addr6 = eam->prefix6.addr; for (i = 0; i < ADDR4_BITS - eam->prefix4.len; i++) { unsigned int offset4 = eam->prefix4.len + i; unsigned int offset6 = eam->prefix6.len + i; addr6_set_bit(addr6, offset6, addr4_get_bit(addr4, offset4)); } /* I'm assuming the prefix address is already zero-trimmed. */ result->entry.method = AXM_EAMT; return 0; } bool eamt_is_empty(struct eam_table *eamt) { return rtrie_is_empty(&eamt->trie6); } struct foreach_args { int (*cb)(struct eamt_entry const *, void *); void *arg; }; static int foreach_cb(void const *eam, void *arg) { struct foreach_args *args = arg; return args->cb(eam, args->arg); } int eamt_foreach(struct eam_table *eamt, eamt_foreach_cb cb, void *arg, struct ipv4_prefix *offset) { struct foreach_args args = { .cb = cb, .arg = arg }; struct rtrie_key offset_key; struct rtrie_key *offset_key_ptr = NULL; int error; if (offset) { offset_key.bytes = (__u8 *) &offset->addr; offset_key.len = offset->len; offset_key_ptr = &offset_key; } mutex_lock(&lock); error = rtrie_foreach(&eamt->trie4, foreach_cb, &args, offset_key_ptr); mutex_unlock(&lock); return error; } void eamt_flush(struct eam_table *eamt) { mutex_lock(&lock); rtrie_flush(&eamt->trie6); rtrie_flush(&eamt->trie4); eamt->count = 0; mutex_unlock(&lock); } struct eam_table *eamt_alloc(void) { struct eam_table *result; result = wkmalloc(struct eam_table, GFP_KERNEL); if (!result) return NULL; rtrie_init(&result->trie6, sizeof(struct eamt_entry), &lock); rtrie_init(&result->trie4, sizeof(struct eamt_entry), &lock); result->count = 0; kref_init(&result->refcount); return result; } void eamt_get(struct eam_table *eamt) { kref_get(&eamt->refcount); } /** * Please note: this function can sleep. */ static void eamt_release(struct kref *refcount) { struct eam_table *eamt; eamt = container_of(refcount, struct eam_table, refcount); log_debug("Emptying EAMT..."); rtrie_clean(&eamt->trie6); rtrie_clean(&eamt->trie4); wkfree(struct eam_table, eamt); } void eamt_put(struct eam_table *eamt) { kref_put(&eamt->refcount, eamt_release); } jool-4.0.7/src/mod/common/db/rfc6791v6.c0000664000175000017500000000440313576247347014377 00000000000000#include "rfc6791v6.h" #include #include #include "mod/common/log.h" #include "mod/common/packet.h" #include "mod/common/rcu.h" #include "mod/common/route.h" #include "mod/common/tags.h" /** * Assuming RFC6791v6 has been populated, returns an IPv6 address an ICMP * error should be sourced with, assuming its source is untranslatable. */ static int get_pool_address(struct xlation *state, struct in6_addr *result) { struct ipv6_prefix *prefix; unsigned int segment_bytes_num; unsigned int modulus; unsigned int offset; size_t host_bytes_num; __u8 randomized_byte; if (!state->jool.globals.siit.rfc6791_prefix6.set) return -EINVAL; prefix = &state->jool.globals.siit.rfc6791_prefix6.prefix; segment_bytes_num = prefix->len >> 3; /* >> 3 = / 8 */ modulus = prefix->len & 7; /* & 7 = % 8 */ offset = segment_bytes_num; host_bytes_num = 16 - segment_bytes_num; (*result) = prefix->addr; if (modulus == 0) { get_random_bytes(((__u8*)result) + offset, host_bytes_num); return 0; } get_random_bytes(((__u8*)result) + offset + 1, host_bytes_num - 1); get_random_bytes(&randomized_byte, sizeof(randomized_byte)); randomized_byte &= (1 << (8 - modulus)) - 1; result->s6_addr[segment_bytes_num] |= randomized_byte; return 0; } /** * Assuming RFC6791v6 has not been populated, returns an IPv6 address an ICMP * error should be sourced with, assuming its source is untranslatable. */ static int get_host_address_v6(struct xlation *state, struct in6_addr *result) { struct in6_addr *daddr; unsigned int flags; daddr = &pkt_ip6_hdr(&state->out)->daddr; flags = IPV6_PREFER_SRC_PUBLIC; if (ipv6_dev_get_saddr(state->jool.ns, NULL, daddr, flags, result)) { log_warn_once("Can't find a sufficiently scoped primary source address to reach %pI6.", daddr); return -EINVAL; } return 0; } /** * Returns an IPv6 address an ICMP error should be sourced with, assuming its * source is untranslatable. */ int rfc6791v6_find(struct xlation *state, struct in6_addr *result) { int error; error = get_pool_address(state, result); if (!error) goto success; error = get_host_address_v6(state, result); if (error) return error; /* Fall through. */ success: log_debug("Chose %pI6c as RFC6791v6 address.", result); return 0; } jool-4.0.7/src/mod/common/db/blacklist4.h0000664000175000017500000000163713576247347015071 00000000000000#ifndef SRC_MOD_SIIT_BLACKLIST4_H_ #define SRC_MOD_SIIT_BLACKLIST4_H_ /** * @file * Pool of banned IPv4 addresses; Jool will refuse to translate these addresses. */ #include #include "mod/common/db/pool.h" struct addr4_pool *blacklist4_alloc(void); void blacklist4_get(struct addr4_pool *pool); void blacklist4_put(struct addr4_pool *pool); int blacklist4_add(struct addr4_pool *pool, struct ipv4_prefix *prefix); int blacklist4_rm(struct addr4_pool *pool, struct ipv4_prefix *prefix); int blacklist4_flush(struct addr4_pool *pool); bool interface_contains(struct net *ns, struct in_addr *addr); bool blacklist4_contains(struct addr4_pool *pool, struct in_addr *addr); int blacklist4_foreach(struct addr4_pool *pool, int (*func)(struct ipv4_prefix *, void *), void *arg, struct ipv4_prefix *offset); bool blacklist4_is_empty(struct addr4_pool *pool); #endif /* SRC_MOD_SIIT_BLACKLIST4_H_ */ jool-4.0.7/src/mod/common/db/pool4/0000775000175000017500000000000013576247347013772 500000000000000jool-4.0.7/src/mod/common/db/pool4/empty.h0000664000175000017500000000056013576247347015222 00000000000000#ifndef SRC_MOD_NAT64_POOL4_EMPTY_H_ #define SRC_MOD_NAT64_POOL4_EMPTY_H_ #include "common/types.h" #include "mod/common/packet.h" #include "mod/common/route.h" bool pool4empty_contains(struct net *ns, const struct ipv4_transport_addr *addr); int pool4empty_find(struct route4_args *route_args, struct pool4_range *range); #endif /* SRC_MOD_NAT64_POOL4_EMPTY_H_ */ jool-4.0.7/src/mod/common/db/pool4/empty.c0000664000175000017500000000524513576247347015222 00000000000000#include "empty.h" #include #include #include #include "common/constants.h" #include "mod/common/ipv6_hdr_iterator.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/xlator.h" static bool contains_addr(struct net *ns, const struct in_addr *addr) { struct net_device *dev; struct in_device *in_dev; #if LINUX_VERSION_AT_LEAST(5, 3, 0, 9999, 0) struct in_ifaddr *ifa; #endif for_each_netdev_rcu(ns, dev) { in_dev = __in_dev_get_rcu(dev); if (!in_dev) continue; #if LINUX_VERSION_AT_LEAST(5, 3, 0, 9999, 0) in_dev_for_each_ifa_rcu(ifa, in_dev) { if (ifa->ifa_flags & IFA_F_SECONDARY) continue; if (ifa->ifa_scope != RT_SCOPE_UNIVERSE) continue; if (ifa->ifa_local == addr->s_addr) return true; } #else for_primary_ifa(in_dev) { if (ifa->ifa_scope != RT_SCOPE_UNIVERSE) continue; if (ifa->ifa_local == addr->s_addr) return true; } endfor_ifa(in_dev); #endif } return false; } bool pool4empty_contains(struct net *ns, const struct ipv4_transport_addr *addr) { bool found; if (addr->l4 < DEFAULT_POOL4_MIN_PORT) return false; /* I sure hope this gets compiled out :p */ if (DEFAULT_POOL4_MAX_PORT < addr->l4) return false; rcu_read_lock(); found = contains_addr(ns, &addr->l3); rcu_read_unlock(); return found; } /** * Initializes @range with the address candidates that could source a packet * routed with @route_args. */ int pool4empty_find(struct route4_args *route_args, struct pool4_range *range) { struct dst_entry *dst; dst = __route4(route_args, NULL); if (!dst) return -ENOMEM; /* * For some strange reason I used to have a near complete ripoff of * inet_select_addr() here. It kind of looks like the reason was that * it had some special code that (seemingly) handled hairpinning but, * after testing inet_select_addr(), it doesn't appear to make any * difference. * Consider trying the old code if this somehow fails. The last commit * that had it was 00bb35f5ea2a6e23a8530f2e3e033d1afd964708. */ range->addr.s_addr = inet_select_addr(dst->dev, route_args->daddr.s_addr, RT_SCOPE_UNIVERSE); if (range->addr.s_addr) { range->ports.min = DEFAULT_POOL4_MIN_PORT; range->ports.max = DEFAULT_POOL4_MAX_PORT; } else { log_debug("Couldn't find a good source address candidate."); } /* * The outgoing packet hasn't been allocated yet, so we don't have a * placeholder for this. We will therefore have to regenerate it later. * Life sucks :-) * * TODO (performance) if you can send the xlator in, we would have a * placeholder. */ dst_release(dst); return range->addr.s_addr ? 0 : -ESRCH; } jool-4.0.7/src/mod/common/db/pool4/rfc6056.h0000664000175000017500000000050613576247347015157 00000000000000#ifndef SRC_MOD_NAT64_POOL4_RFC6056_H_ #define SRC_MOD_NAT64_POOL4_RFC6056_H_ #include "common/types.h" #include "mod/common/translation_state.h" int rfc6056_setup(void); void rfc6056_teardown(void); int rfc6056_f(const struct tuple *tuple6, __u8 fields, unsigned int *result); #endif /* SRC_MOD_NAT64_POOL4_RFC6056_H_ */ jool-4.0.7/src/mod/common/db/pool4/db.c0000664000175000017500000007776213576247347014466 00000000000000#include "db.h" #include #include #include #include "common/types.h" #include "mod/common/log.h" #include "mod/common/wkmalloc.h" #include "mod/common/db/rbtree.h" #include "mod/common/db/pool4/empty.h" #include "mod/common/db/pool4/rfc6056.h" /* * pool4 (struct pool4) is made out of two tree groups (struct pool4_trees). * (One group for mark indexes (6->4), one for address indexes (4->6).) * Each tree group is made out of three red-black trees. (One RB-tree per * transport protocol.) * Each tree is made out of nodes. Each node is a *table* (struct pool4_table). * Each table is made out of entries (struct pool4_range). * Entries are roughly what the user --pool4 --added. * * There's also struct mask_domain, which is a copy of a table, and with * the ability to iterate through its entries' transport addresses easily. * So tables are the compact version meant for storage and need locking, domains * are more versatile, disposable, meant for outside use and don't need locking. * * Only pool4 and mask_domain are public, and only in declaration form. * * Unlike the BIB, these terms haven't been documented in the user manual so * they can be changed. (I'm not so sure about "table" in particular. Other * modules treat trees as tables, so it can be a bit confusing.) * * Also unlike the BIB, nodes are not shared between trees. This is because * entries that share a mark do not necessarily share addresses and vice-versa. */ struct pool4_table { union { __u32 mark; struct in_addr addr; }; unsigned int taddr_count; unsigned int sample_count; struct rb_node tree_hook; /** * Number of times the caller is allowed to iterate on mask_domains * inferred from this table. * * This is only relevant * - in mark-based tables, as the NAT64 doesn't need to allocate * arbitrary addresses in the 4->6 direction. * - if max_iterations_auto is false. This is because when it's true it * can be computed on the fly, which is way easier. */ unsigned int max_iterations_allowed; /** * Did the user override the default value? * When the table changes, an auto table needs to update the value, * otherwise keep the old value set by the user. * Also, only relevant in mark-based tables. * * ITERATIONS_SET is not relevant here. */ enum iteration_flags max_iterations_flags; /* * An array of struct pool4_range hangs off here. * (The array length is @sample_count.) */ }; /** * Assumes @table has at least one entry. */ #define foreach_table_range(entry, table) \ for (entry = first_table_entry(table); \ entry < first_table_entry(table) + table->sample_count; \ entry++) struct pool4_trees { struct rb_root tcp; struct rb_root udp; struct rb_root icmp; }; struct pool4 { /** Entries indexed via mark. (Normally used in 6->4) */ struct pool4_trees tree_mark; /** Entries indexed via address. (Normally used in 4->6) */ struct pool4_trees tree_addr; spinlock_t lock; struct kref refcounter; }; struct mask_domain { __u32 pool_mark; unsigned int taddr_count; unsigned int taddr_counter; /* ITERATIONS_INFINITE is represented by this being zero. */ unsigned int max_iterations; unsigned int range_count; struct pool4_range *current_range; int current_port; /** * A "dynamic" domain is one that was generated on the fly - that is, * Jool queried the interface addresses, picked one and used it to * improvise a domain. * * A "static" domain is one the user predefined. * * Empty pool4 generates dynamic domains and populated ones generate * static domains. */ bool dynamic; /* * An array of struct pool4_range hangs off here. * (The array length is @sample_count.) */ }; /** * From RFC 6056, algorithm 3. * * TODO (issue175) This is not perfect. According to the RFC, there would * ideally be one of these per `--f-args`-defined tuple, but since that's not * rational, it settles with one per pool4 table. * This being a global variable, we're doing one per NAT64 kernel module. (Which * is even farther from the ideal.) * * As far as the RFC is concerned, this is actually perfectly fine. (The only * purpose of `next_ephemeral` (as far as I can tell) is to reduce looping for * port allocations that share the `--f-args` fields. This implementation * definitely does that.) But this is only because it doesn't care about gaming * (see the giant note at rfc6056.c). This being a global variable puts a hamper * on gaming because it means unrelated traffic will separate the connections of * a game's client too much. This is, in fact, a natural problem of algorithm 3 * (again, because the RFC doesn't care), but we're making it worse. * * Because @next_ephemeral is needed during mask iteration, which does not have * access to the pool4 for significant locking/performance reasons, this is not * trivial to fix. I'm hoping (though haven't actually given it much thought) * that it will be more feasible once issue175 is implemented. */ static atomic_t next_ephemeral = ATOMIC_INIT(0); /** * Assumes @domain has at least one entry. */ #define foreach_domain_range(entry, domain) \ for (entry = first_domain_entry(domain); \ entry < first_domain_entry(domain) + domain->range_count; \ entry++) static struct rb_root *get_tree(struct pool4_trees *trees, l4_protocol proto) { switch (proto) { case L4PROTO_TCP: return &trees->tcp; case L4PROTO_UDP: return &trees->udp; case L4PROTO_ICMP: return &trees->icmp; case L4PROTO_OTHER: break; } WARN(true, "Unsupported transport protocol: %u.", proto); return NULL; } static int cmp_mark(struct pool4_table *table, __u32 mark) { return ((int)mark) - (int)table->mark; } static struct pool4_table *find_by_mark(struct rb_root *tree, __u32 mark) { if (unlikely(!tree)) return NULL; return rbtree_find(mark, tree, cmp_mark, struct pool4_table, tree_hook); } static int cmp_addr(struct pool4_table *table, struct in_addr *addr) { return ipv4_addr_cmp(&table->addr, addr); } static struct pool4_table *find_by_addr(struct rb_root *tree, struct in_addr *addr) { if (unlikely(!tree)) return NULL; return rbtree_find(addr, tree, cmp_addr, struct pool4_table, tree_hook); } static int cmp_prefix(struct pool4_table *table, struct ipv4_prefix *prefix) { if (prefix4_contains(prefix, &table->addr)) return 0; return ipv4_addr_cmp(&table->addr, &prefix->addr); } static struct pool4_table *find_by_prefix(struct rb_root *tree, struct ipv4_prefix *prefix) { return rbtree_find(prefix, tree, cmp_prefix, struct pool4_table, tree_hook); } static bool is_empty(struct pool4 *pool) { return RB_EMPTY_ROOT(&pool->tree_mark.tcp) && RB_EMPTY_ROOT(&pool->tree_mark.udp) && RB_EMPTY_ROOT(&pool->tree_mark.icmp); } static struct pool4_range *first_table_entry(struct pool4_table *table) { return (struct pool4_range *)(table + 1); } static struct pool4_range *last_table_entry(struct pool4_table *table) { return first_table_entry(table) + table->sample_count - 1; } static struct pool4_range *first_domain_entry(struct mask_domain *domain) { return (struct pool4_range *)(domain + 1); } /* Leaves table->addr and table->mark undefined! */ static struct pool4_table *create_table(struct pool4_range *range) { struct pool4_table *table; struct pool4_range *entry; table = __wkmalloc("pool4table", sizeof(struct pool4_table) + sizeof(struct pool4_range), GFP_ATOMIC); if (!table) return NULL; table->taddr_count = port_range_count(&range->ports); table->sample_count = 1; table->max_iterations_allowed = 0; table->max_iterations_flags = ITERATIONS_AUTO; entry = first_table_entry(table); *entry = *range; return table; } struct pool4 *pool4db_alloc(void) { struct pool4 *result; result = wkmalloc(struct pool4, GFP_KERNEL); if (!result) return NULL; result->tree_mark.tcp = RB_ROOT; result->tree_mark.udp = RB_ROOT; result->tree_mark.icmp = RB_ROOT; result->tree_addr.tcp = RB_ROOT; result->tree_addr.udp = RB_ROOT; result->tree_addr.icmp = RB_ROOT; spin_lock_init(&result->lock); kref_init(&result->refcounter); return result; } void pool4db_get(struct pool4 *pool) { kref_get(&pool->refcounter); } static void destroy_table(struct pool4_table *table) { __wkfree("pool4table", table); } static void destroy_table_by_node(struct rb_node *node, void *arg) { struct pool4_table *table; table = rb_entry(node, struct pool4_table, tree_hook); destroy_table(table); } static void clear_trees(struct pool4 *pool) { rbtree_clear(&pool->tree_mark.tcp, destroy_table_by_node, NULL); rbtree_clear(&pool->tree_mark.udp, destroy_table_by_node, NULL); rbtree_clear(&pool->tree_mark.icmp, destroy_table_by_node, NULL); rbtree_clear(&pool->tree_addr.tcp, destroy_table_by_node, NULL); rbtree_clear(&pool->tree_addr.udp, destroy_table_by_node, NULL); rbtree_clear(&pool->tree_addr.icmp, destroy_table_by_node, NULL); } static void pool4db_release(struct kref *refcounter) { struct pool4 *pool; pool = container_of(refcounter, struct pool4, refcounter); clear_trees(pool); wkfree(struct pool4, pool); } void pool4db_put(struct pool4 *pool) { kref_put(&pool->refcounter, pool4db_release); } static int max_iterations_validate(__u8 flags, __u32 iterations) { bool automatic = flags & ITERATIONS_AUTO; bool infinite = flags & ITERATIONS_INFINITE; if (!(flags & ITERATIONS_SET)) return 0; if (automatic && infinite) { log_err("Max Iterations cannot be automatic and infinite at the same time."); return -EINVAL; } if (iterations == 0 && !automatic && !infinite) { log_err("Zero is not a legal Max Iterations value."); return -EINVAL; } return 0; } static int compare_range(struct pool4_range *r1, struct pool4_range *r2) { int gap; gap = ipv4_addr_cmp(&r1->addr, &r2->addr); if (gap) return gap; /* * Reminder: "+/- 1" converts the number into an int. * These are not __u16 comparisons. */ if (r1->ports.max < r2->ports.min - 1) return -1; if (r1->ports.min > r2->ports.max + 1) return 1; return 0; } static void pool4_range_fuse(struct pool4_range *r1, struct pool4_range *r2) { return port_range_fuse(&r1->ports, &r2->ports); } static void fix_collisions(struct pool4_table *table, struct pool4_range *entry) { struct pool4_range *last = last_table_entry(table); while (entry != last && pool4_range_touches(entry, entry + 1)) { table->taddr_count -= port_range_count(&entry->ports); table->taddr_count -= port_range_count(&(entry + 1)->ports); pool4_range_fuse(entry, entry + 1); table->taddr_count += port_range_count(&entry->ports); last--; memmove(entry + 1, entry + 2, (last - entry) * sizeof(struct pool4_range)); table->sample_count--; } } /** * IMPORTANT NOTE: @table should not be dereferenced after this! * * Will enlarge @table's entry array and place @new before @entry. * (@entry must belong to @table, @new must not.) */ static int slip_in(struct rb_root *tree, struct pool4_table *table, struct pool4_range *entry, struct pool4_range *new) { unsigned int entry_offset; size_t new_size; struct rb_node tmp; struct pool4_table *new_table; struct pool4_range *last; entry_offset = entry - first_table_entry(table); new_size = sizeof(struct pool4_table) + (table->sample_count + 1) * sizeof(struct pool4_range); rb_replace_node(&table->tree_hook, &tmp, tree); new_table = krealloc(table, new_size, GFP_ATOMIC); if (!new_table) { rb_replace_node(&tmp, &table->tree_hook, tree); return -ENOMEM; } rb_replace_node(&tmp, &new_table->tree_hook, tree); entry = first_table_entry(new_table) + entry_offset; last = last_table_entry(new_table); memmove(entry + 1, entry, /* * "+ 1" is before "- entry" to prevent negatives. * I'm not actually sure if negatives are a problem * when it comes to pointers, but whatever. */ (last + 1 - entry) * sizeof(struct pool4_range)); *entry = *new; new_table->taddr_count += port_range_count(&new->ports); new_table->sample_count++; return 0; } static int pool4_add_range(struct rb_root *tree, struct pool4_table *table, struct pool4_range *new) { struct pool4_range *entry; int comparison; /* Reminder: @table cannot be empty when this function kicks in. */ foreach_table_range(entry, table) { comparison = compare_range(entry, new); if (comparison == 0) { pool4_range_fuse(entry, new); fix_collisions(table, entry); return 0; } if (comparison > 0) break; /* Going to slip @new right into this pos. */ } /* Otherwise place it at the end of the array. */ return slip_in(tree, table, entry, new); } static int add_to_mark_tree(struct pool4 *pool, const struct pool4_entry_usr *entry, struct pool4_range *new) { struct pool4_table *table; struct pool4_table *collision; struct rb_root *tree; int error; tree = get_tree(&pool->tree_mark, entry->proto); if (!tree) return -EINVAL; table = find_by_mark(tree, entry->mark); if (table) { error = pool4_add_range(tree, table, new); if (error) return error; if (entry->flags & ITERATIONS_SET) { table->max_iterations_flags = entry->flags; table->max_iterations_allowed = entry->iterations; } return 0; } table = create_table(new); if (!table) return -ENOMEM; table->mark = entry->mark; if (entry->flags & ITERATIONS_SET) { table->max_iterations_flags = entry->flags; table->max_iterations_allowed = entry->iterations; } collision = rbtree_add(table, entry->mark, tree, cmp_mark, struct pool4_table, tree_hook); /* The spinlock is held, so this is critical. */ if (WARN(collision, "Table wasn't and then was in the tree.")) { destroy_table(table); return -EINVAL; } return 0; } static int add_to_addr_tree(struct pool4 *pool, const struct pool4_entry_usr *entry, struct pool4_range *new) { struct rb_root *tree; struct pool4_table *table; struct pool4_table *collision; tree = get_tree(&pool->tree_addr, entry->proto); if (!tree) return -EINVAL; table = find_by_addr(tree, &new->addr); if (table) return pool4_add_range(tree, table, new); table = create_table(new); if (!table) return -ENOMEM; table->addr = new->addr; table->max_iterations_flags = ITERATIONS_AUTO; table->max_iterations_allowed = 0; collision = rbtree_add(table, &table->addr, tree, cmp_addr, struct pool4_table, tree_hook); /* The spinlock is held, so this is critical. */ if (WARN(collision, "Table wasn't and then was in the tree.")) { destroy_table(table); return -EINVAL; } return 0; } int pool4db_add(struct pool4 *pool, const struct pool4_entry_usr *entry) { struct pool4_range addend = { .ports = entry->range.ports }; u64 tmp; int error; error = prefix4_validate(&entry->range.prefix); if (error) return error; error = max_iterations_validate(entry->flags, entry->iterations); if (error) return error; if (addend.ports.min > addend.ports.max) swap(addend.ports.min, addend.ports.max); if (entry->proto == L4PROTO_TCP || entry->proto == L4PROTO_UDP) if (addend.ports.min == 0) addend.ports.min = 1; foreach_addr4(addend.addr, tmp, &entry->range.prefix) { spin_lock_bh(&pool->lock); error = add_to_mark_tree(pool, entry, &addend); if (!error) { error = add_to_addr_tree(pool, entry, &addend); if (error) goto trainwreck; } spin_unlock_bh(&pool->lock); if (error) return error; } return 0; trainwreck: spin_unlock_bh(&pool->lock); /* * We're in a serious conundrum. * We cannot revert the add_to_mark_tree() because of port range fusing; * we don't know the state before we locked unless we rebuild the entire * mark tree based on the address tree, but since this error was caused * either by a memory allocation failure or a bug, we can't do that. * (Also laziness. It sounds like a million lines of code.) * So let's just let the user know that the database was left in an * inconsistent state and have them restart from scratch. */ log_err("pool4 was probably left in an inconsistent state because of a memory allocation failure or a bug. Please remove NAT64 Jool from your kernel."); return error; } int pool4db_update(struct pool4 *pool, const struct pool4_update *update) { struct rb_root *tree; struct pool4_table *table; int error; error = max_iterations_validate(update->flags, update->iterations); if (error) return error; spin_lock_bh(&pool->lock); tree = get_tree(&pool->tree_mark, update->l4_proto); if (!tree) { spin_unlock_bh(&pool->lock); return -EINVAL; } table = find_by_mark(tree, update->mark); if (!table) { spin_unlock_bh(&pool->lock); log_err("No entries match mark %u (protocol %s).", update->mark, l4proto_to_string(update->l4_proto)); return -ESRCH; } if (update->flags & ITERATIONS_SET) { table->max_iterations_flags = update->flags; table->max_iterations_allowed = update->iterations; } spin_unlock_bh(&pool->lock); return 0; } static int remove_range(struct rb_root *tree, struct pool4_table *table, struct ipv4_range *rm) { struct pool4_range *entry; struct port_range *ports; struct pool4_range tmp; /* * This is not unsigned because there's a i-- below that can happen * during i = 0. */ int i; int error = 0; /* log_debug(" removing range %pI4/%u %u-%u", &rm->prefix.address, rm->prefix.len, rm->ports.min, rm->ports.max); */ /* * Note: The entries are sorted so this could be a binary search, but I * don't want to risk getting it wrong or complicate the code further. * This is a very rare operation on usually very small arrays anyway. */ for (i = 0; i < table->sample_count; i++) { entry = first_table_entry(table) + i; if (!prefix4_contains(&rm->prefix, &entry->addr)) continue; ports = &entry->ports; if (rm->ports.min <= ports->min && ports->max <= rm->ports.max) { /* log_debug(" rm fully contains %pI4 %u-%u.", &entry->addr, ports->min, ports->max);*/ table->taddr_count -= port_range_count(ports); memmove(entry, entry + 1, sizeof(struct pool4_range) * (table->sample_count - i - 1)); table->sample_count--; i--; continue; } if (ports->min < rm->ports.min && rm->ports.max < ports->max) { /* log_debug(" rm is inside %pI4 %u-%u.", &entry->addr, ports->min, ports->max);*/ /* Punch a hole in ports. */ table->taddr_count -= port_range_count(&rm->ports); tmp.addr = entry->addr; tmp.ports.min = rm->ports.max + 1; tmp.ports.max = ports->max; ports->max = rm->ports.min - 1; error = slip_in(tree, table, entry + 1, &tmp); if (error) break; continue; } if (rm->ports.max < ports->min || rm->ports.min > ports->max) { /* log_debug(" rm has nothing to do with %pI4 %u-%u.", &entry->addr, ports->min, ports->max);*/ continue; } if (ports->min < rm->ports.min) { /* log_debug(" rm touches %pI4 %u-%u's right.", &entry->addr, ports->min, ports->max);*/ table->taddr_count -= ports->max - rm->ports.min + 1; ports->max = rm->ports.min - 1; continue; } if (rm->ports.max < ports->max) { /* log_debug(" rm touches %pI4 %u-%u's left.", &entry->addr, ports->min, ports->max);*/ table->taddr_count -= rm->ports.max - ports->min + 1; ports->min = rm->ports.max + 1; continue; } } if (table->sample_count == 0) { rb_erase(&table->tree_hook, tree); wkfree(struct pool4_table, table); } return error; } static int rm_from_mark_tree(struct pool4 *pool, const __u32 mark, l4_protocol proto, struct ipv4_range *range) { struct rb_root *tree; struct pool4_table *table; tree = get_tree(&pool->tree_mark, proto); if (!tree) return -EINVAL; table = find_by_mark(tree, mark); if (!table) return 0; return remove_range(tree, table, range); } static int rm_from_addr_tree(struct pool4 *pool, l4_protocol proto, struct ipv4_range *range) { struct rb_root *tree; struct pool4_table *table; struct rb_node *prev; struct rb_node *next; int error; tree = get_tree(&pool->tree_addr, proto); if (!tree) return -EINVAL; table = find_by_prefix(tree, &range->prefix); if (!table) return 0; prev = rb_prev(&table->tree_hook); next = rb_next(&table->tree_hook); error = remove_range(tree, table, range); if (error) return error; while (prev) { table = rb_entry(prev, struct pool4_table, tree_hook); if (!prefix4_contains(&range->prefix, &table->addr)) break; prev = rb_prev(&table->tree_hook); error = remove_range(tree, table, range); if (error) return error; } while (next) { table = rb_entry(next, struct pool4_table, tree_hook); if (!prefix4_contains(&range->prefix, &table->addr)) break; next = rb_next(&table->tree_hook); error = remove_range(tree, table, range); if (error) return error; } return 0; } int pool4db_rm(struct pool4 *pool, const __u32 mark, l4_protocol proto, struct ipv4_range *range) { int error; error = prefix4_validate(&range->prefix); if (error) return error; if (range->ports.min > range->ports.max) swap(range->ports.min, range->ports.max); spin_lock_bh(&pool->lock); error = rm_from_mark_tree(pool, mark, proto, range); if (!error) error = rm_from_addr_tree(pool, proto, range); spin_unlock_bh(&pool->lock); return error; } int pool4db_rm_usr(struct pool4 *pool, struct pool4_entry_usr *entry) { return pool4db_rm(pool, entry->mark, entry->proto, &entry->range); } void pool4db_flush(struct pool4 *pool) { spin_lock_bh(&pool->lock); clear_trees(pool); spin_unlock_bh(&pool->lock); } static struct pool4_range *find_port_range(struct pool4_table *entry, __u16 port) { struct pool4_range *first = first_table_entry(entry); struct pool4_range *middle; struct pool4_range *last = first + entry->sample_count - 1; do { middle = first + ((last - first) / 2); if (port < middle->ports.min) { last = middle - 1; continue; } if (port > middle->ports.max) { first = middle + 1; continue; } return middle; } while (first <= last); return NULL; } /** * BTW: The reason why this doesn't care about mark is because it's an * inherently 4-to-6 function (it doesn't make sense otherwise). * Mark is only used in the 6-to-4 direction. */ bool pool4db_contains(struct pool4 *pool, struct net *ns, l4_protocol proto, struct ipv4_transport_addr *addr) { struct pool4_table *table; bool found = false; spin_lock_bh(&pool->lock); if (is_empty(pool)) { spin_unlock_bh(&pool->lock); return pool4empty_contains(ns, addr); } table = find_by_addr(get_tree(&pool->tree_addr, proto), &addr->l3); if (table) found = find_port_range(table, addr->l4) != NULL; spin_unlock_bh(&pool->lock); return found; } static int find_offset(struct pool4_table *table, struct pool4_range *offset, struct pool4_range **result) { struct pool4_range *entry; foreach_table_range(entry, table) { if (pool4_range_equals(offset, entry)) { *result = entry; return 0; } } return -ESRCH; } static unsigned int compute_max_iterations(const struct pool4_table *table) { unsigned int result; if (table->max_iterations_flags & ITERATIONS_INFINITE) return 0; if (!(table->max_iterations_flags & ITERATIONS_AUTO)) return table->max_iterations_allowed; /* * The following heuristics are based on a few tests I ran. Keep in mind * that none of them are imposed on the user; they only define the * default value. * * The tests were as follows: * * For every one of the following pool4 sizes (in transport addresses), * I exhausted the corresponding pool4 16 times and kept track of how * many iterations I needed to allocate a connection in every step. * * The sizes were 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, * 131072, 196608, 262144, 327680, 393216, 458752, 524288, 1048576 and * 2097152. * * I did not test larger pool4s because I feel like more than 32 full * addresses is rather pushing it and would all the likely require * manual intervention anyway. */ /* * Right shift 7 is the same as division by 128. Why 128? * Because I want roughly 1% of the total size, and also don't want any * floating point arithmetic. * Integer division by 100 would be acceptable, but this is faster. * (Recall that we have a spinlock held.) */ result = table->taddr_count >> 7; /* * If the limit is too big, the NAT64 will iterate too much. * If the limit is too small, the NAT64 will start losing connections * early. * * So first of all, prevent the algorithm from iterating too little. * * (The values don't have to be powers or multiples of anything; I just * really like base 8.) * * A result lower than 1024 will be yielded when pool4 is 128k ports * large or smaller, so the following paragraph (and conditional) only * applies to this range: * * In all of the tests I ran, a max iterations of 1024 would have been a * reasonable limit that would have completely prevented the NAT64 from * dropping *any* connections, at least until pool4 was about 91% * exhausted. (Connections can be technically dropped regardless, but * it's very unlikely.) Also, on average, most connections would have * kept succeeding until pool4 reached 98% utilization. */ if (result < 1024) return 1024; /* * And finally: Prevent the algorithm from iterating too much. * * 8k will begin dropping connections at 95% utilization and most * connections will remain on the success side until 99% exhaustion. */ if (result > 8192) return 8192; return result; } static void __update_sample(struct pool4_sample *sample, const struct pool4_table *table) { sample->mark = table->mark; sample->iterations_flags = table->max_iterations_flags; sample->iterations = compute_max_iterations(table); } /** * As a contract, this function will return: * * - As usual, negative integers as errors. * - If cb decides to stop iteration early, it will do so by returning nonzero * (preferably positive), and that will in turn become the result of this * function. * - 0 if iteration ended with no interruptions. */ int pool4db_foreach_sample(struct pool4 *pool, l4_protocol proto, pool4db_foreach_sample_cb cb, void *arg, struct pool4_sample *offset) { struct rb_root *tree; struct rb_node *node; struct pool4_table *table; struct pool4_range *entry; struct pool4_sample sample = { .proto = proto }; int error = 0; spin_lock_bh(&pool->lock); tree = get_tree(&pool->tree_mark, proto); if (!tree) { error = -EINVAL; goto end; } if (offset) { table = find_by_mark(tree, offset->mark); if (!table) goto eagain; error = find_offset(table, &offset->range, &entry); if (error) goto eagain; __update_sample(&sample, table); goto offset_start; } node = rb_first(tree); while (node) { table = rb_entry(node, struct pool4_table, tree_hook); __update_sample(&sample, table); foreach_table_range(entry, table) { sample.range = *entry; error = cb(&sample, arg); if (error) goto end; offset_start:; /* <- The semicolon prevents a compiler error. */ } node = rb_next(&table->tree_hook); } end: spin_unlock_bh(&pool->lock); return error; eagain: spin_unlock_bh(&pool->lock); log_err("Oops. Pool4 changed while I was iterating so I lost track of where I was. Try again."); return -EAGAIN; } static void print_tree(struct rb_root *tree, bool mark) { struct rb_node *node = rb_first(tree); struct pool4_table *table; struct pool4_range *entry; if (!node) { log_info(" Empty."); return; } while (node) { table = rb_entry(node, struct pool4_table, tree_hook); if (mark) log_info("\tMark:%u", table->mark); else log_info("\tAddress:%pI4", &table->addr); log_info("\tSample count:%u", table->sample_count); log_info("\tTaddr count:%u", table->taddr_count); foreach_table_range(entry, table) { log_info("\t\t%pI4 %u-%u", &entry->addr, entry->ports.min, entry->ports.max); } node = rb_next(node); } } void pool4db_print(struct pool4 *pool) { log_info("-------- Mark trees --------"); log_info("TCP:"); print_tree(&pool->tree_mark.tcp, true); log_info("UDP:"); print_tree(&pool->tree_mark.udp, true); log_info("ICMP:"); print_tree(&pool->tree_mark.icmp, true); log_info("-------- Addr trees --------"); log_info("TCP:"); print_tree(&pool->tree_addr.tcp, false); log_info("UDP:"); print_tree(&pool->tree_addr.udp, false); log_info("ICMP:"); print_tree(&pool->tree_addr.icmp, false); } static struct mask_domain *find_empty(struct route4_args *args, unsigned int offset) { struct mask_domain *masks; struct pool4_range *range; masks = __wkmalloc("mask_domain", sizeof(struct mask_domain) * sizeof(struct pool4_range), GFP_ATOMIC); if (!masks) return NULL; range = (struct pool4_range *)(masks + 1); if (pool4empty_find(args, range)) { __wkfree("mask_domain", masks); return NULL; } masks->pool_mark = 0; masks->taddr_count = port_range_count(&range->ports); masks->taddr_counter = 0; masks->max_iterations = 0; masks->range_count = 1; masks->current_range = range; masks->current_port = range->ports.min + offset % masks->taddr_count; masks->dynamic = true; return masks; } struct mask_domain *mask_domain_find(struct pool4 *pool, struct tuple *tuple6, __u8 f_args, struct route4_args *route_args) { struct pool4_table *table; struct pool4_range *entry; struct mask_domain *masks; unsigned int offset; if (rfc6056_f(tuple6, f_args, &offset)) return NULL; offset += atomic_read(&next_ephemeral); spin_lock_bh(&pool->lock); if (is_empty(pool)) { spin_unlock_bh(&pool->lock); return find_empty(route_args, offset); } table = find_by_mark(get_tree(&pool->tree_mark, tuple6->l4_proto), route_args->mark); if (!table) goto fail; masks = __wkmalloc("mask_domain", sizeof(struct mask_domain) + table->sample_count * sizeof(struct pool4_range), GFP_ATOMIC); if (!masks) goto fail; memcpy(masks + 1, table + 1, table->sample_count * sizeof(struct pool4_range)); masks->taddr_count = table->taddr_count; masks->max_iterations = compute_max_iterations(table); masks->range_count = table->sample_count; spin_unlock_bh(&pool->lock); masks->pool_mark = route_args->mark; masks->taddr_counter = 0; masks->dynamic = false; offset %= masks->taddr_count; foreach_domain_range(entry, masks) { if (offset <= port_range_count(&entry->ports)) { masks->current_range = entry; masks->current_port = entry->ports.min + offset - 1; return masks; /* Happy path */ } offset -= port_range_count(&entry->ports); } WARN(true, "Bug: pool4 entry counter does not match entry count."); __wkfree("mask_domain", masks); return NULL; fail: spin_unlock_bh(&pool->lock); return NULL; } void mask_domain_put(struct mask_domain *masks) { __wkfree("mask_domain", masks); } int mask_domain_next(struct mask_domain *masks, struct ipv4_transport_addr *addr, bool *consecutive) { masks->taddr_counter++; if (masks->taddr_counter > masks->taddr_count) return -ENOENT; if (masks->max_iterations) if (masks->taddr_counter > masks->max_iterations) return -ENOENT; masks->current_port++; if (masks->current_port > masks->current_range->ports.max) { *consecutive = false; masks->current_range++; if (masks->current_range >= first_domain_entry(masks) + masks->range_count) masks->current_range = first_domain_entry(masks); masks->current_port = masks->current_range->ports.min; } else { *consecutive = (masks->taddr_counter != 1); } addr->l3 = masks->current_range->addr; addr->l4 = masks->current_port; return 0; } /* * According to the kernel, adding to an atomic integer is "much slower" * (https://elixir.bootlin.com/linux/v5.0/source/arch/alpha/include/asm/atomic.h#L13) * than adding to a normal integer. That's why this function exists: We add once * when the loop is over instead of every time mask_domain_next() is called. * * Now, this does mean that retrievals of @next_ephemeral that happen * concurrent to the loop will not get the maybe intended value, but RFC 6056 is * silent about what is actually supposed to happen in these cases. Also, I'm * probably micro-optimizing at this point. */ void mask_domain_commit(struct mask_domain *masks) { atomic_add(masks->taddr_counter, &next_ephemeral); } bool mask_domain_matches(struct mask_domain *masks, struct ipv4_transport_addr *addr) { struct pool4_range *entry; foreach_domain_range(entry, masks) { if (entry->addr.s_addr != addr->l3.s_addr) continue; if (port_range_contains(&entry->ports, addr->l4)) return true; } return false; } bool mask_domain_is_dynamic(struct mask_domain *masks) { return masks->dynamic; } __u32 mask_domain_get_mark(struct mask_domain *masks) { return masks->pool_mark; } jool-4.0.7/src/mod/common/db/pool4/db.h0000664000175000017500000000363313576247347014455 00000000000000#ifndef SRC_MOD_NAT64_POOL4_DB_H_ #define SRC_MOD_NAT64_POOL4_DB_H_ /* * @file * The pool of IPv4 addresses. Stateful NAT64 Jool uses this to figure out * which packets should be translated. */ #include #include "common/config.h" #include "mod/common/types.h" #include "mod/common/route.h" struct pool4; /* * Write functions (Caller must prevent concurrence) */ struct pool4 *pool4db_alloc(void); void pool4db_get(struct pool4 *pool); void pool4db_put(struct pool4 *pool); int pool4db_add(struct pool4 *pool, const struct pool4_entry_usr *entry); int pool4db_update(struct pool4 *pool, const struct pool4_update *update); int pool4db_rm(struct pool4 *pool, const __u32 mark, enum l4_protocol proto, struct ipv4_range *range); int pool4db_rm_usr(struct pool4 *pool, struct pool4_entry_usr *entry); void pool4db_flush(struct pool4 *pool); /* * Read functions (Legal to use anywhere) */ bool pool4db_contains(struct pool4 *pool, struct net *ns, enum l4_protocol proto, struct ipv4_transport_addr *addr); typedef int (*pool4db_foreach_sample_cb)(struct pool4_sample const *, void *); int pool4db_foreach_sample(struct pool4 *pool, l4_protocol proto, pool4db_foreach_sample_cb cb, void *arg, struct pool4_sample *offset); struct mask_domain; struct mask_domain *mask_domain_find(struct pool4 *pool, struct tuple *tuple6, __u8 f_args, struct route4_args *route_args); void mask_domain_put(struct mask_domain *masks); int mask_domain_next(struct mask_domain *masks, struct ipv4_transport_addr *addr, bool *consecutive); void mask_domain_commit(struct mask_domain *masks); bool mask_domain_matches(struct mask_domain *masks, struct ipv4_transport_addr *addr); bool mask_domain_is_dynamic(struct mask_domain *masks); __u32 mask_domain_get_mark(struct mask_domain *masks); /* * Test functions (Illegal in production code) */ void pool4db_print(struct pool4 *pool); #endif /* SRC_MOD_NAT64_POOL4_DB_H_ */ jool-4.0.7/src/mod/common/db/pool4/rfc6056.c0000664000175000017500000001450113576247347015152 00000000000000#include "mod/common/db/pool4/rfc6056.h" #include #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/wkmalloc.h" /* * My own notes on RFC 6056's algorithms: * * Algorithms 1 and 2: Currently, the main drawback is that they would require * calls to `get_random_bytes()`, which is a big no-no according to issue #282. * But IIRC, the original reason why I chose not to use them was because they * break games. These algorithms are very anti-RFC6146. * * (When you see the word "gaming" or "games", assume "applications that open * lots of connections, and which the server probably expects them all to share * the same IP address.") * * Algorithm 3: I no longer like this algorithm as much as I used to, TBH. The * fact that `next_ephemeral` is shared between all connections means that high * traffic will increase the probability of games breaking. * However, it seems that `next_ephemeral` was removed from Jool during some * refactor. Whether this was on purpose or not, it is both good (because it * breaks games less) and bad (because it creates unnecesary collisions during * port selection for games). Because our pool4 has the max_iterations feature, * the bad might not be so troublesome after all. * * The reason why I chose it is because I find it (cleverly) offers an * interesting tradeoff between randomization (thanks to `F`) and source * preservation (by way of checking adjacent ports during the loop). * * Algorithm 4: I rejected this one for two reasons. The second one is probably * good: * * 1. I feel like computing two separate hashes is too much overhead for such a * minor operation. * (But I'm making assumptions here. MD5 is probably very fast actually, and * if `shash_desc` can be cloned, most of the operation will be obviated away * because the hashes differ in one field only.) * 2. Storing the `table` array sounds like a pain. * (But not that much more of a pain than maintaining a global ephemeral. My * main gripe is that the array size would have to be configurable, and I * really don't want to bother users with more stupefyingly-specific global * fields that nobody asked for.) * * Algorithm 5: This algorithm jumps a lot (particularly with a default `N` of * 500), so it's also 6146-unfriendly. It also has the drawback that `N` needs * to be configurable, so please no. * * In all reality, the ideal solution would be to just fuck it and implement all * 5 algorithms. But since probably nobody cares, this would be a lot of * unnecesary work. 3 remains the winner for me. * * Also, I wonder if this whole gaming gimmic is that much of a factor. Do * servers really expect clients to maintain consistent IP addresses when NAT44 * is so pervasive in today's Internet? Also, it's perfectly legal for * client to own more than one IP address. Also, I understand smartphones are a * huge market for online gaming, and I don't imagine it's rare for them to keep * switching networks on the go. */ /* * TODO (issue175) RFC 6056 wants us to change this from time to time. * * For now they are only modified during module initialization and destruction, * which means they don't need synchronization. */ static unsigned char *secret_key; static size_t secret_key_len; /* * It looks like this does not require a spinlock either: * * "The shash interface (...) * improves over hash in two ways. Firstly shash is reentrant, * meaning that the same tfm may be used by two threads simultaneously * as all hashing state is stored in a local descriptor." * (Linux commit 7b5a080b3c46f0cac71c0d0262634c6517d4ee4f) */ static struct crypto_shash *shash; int rfc6056_setup(void) { int error; /* Secret key stuff */ secret_key_len = (PAGE_SIZE < 128) ? PAGE_SIZE : 128; secret_key = __wkmalloc("Secret key", secret_key_len, GFP_KERNEL); if (!secret_key) return -ENOMEM; get_random_bytes(secret_key, secret_key_len); /* TFC stuff */ shash = crypto_alloc_shash("md5", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(shash)) { error = PTR_ERR(shash); log_warn_once("Failed to load transform for MD5; errcode %d", error); __wkfree("Secret key", secret_key); return error; } return 0; } void rfc6056_teardown(void) { crypto_free_shash(shash); __wkfree("Secret key", secret_key); } static int hash_tuple(struct shash_desc *desc, __u8 fields, const struct tuple *tuple6) { int error; if (fields & F_ARGS_SRC_ADDR) { error = crypto_shash_update(desc, (u8 *)&tuple6->src.addr6.l3, sizeof(tuple6->src.addr6.l3)); if (error) return error; } if (fields & F_ARGS_SRC_PORT) { error = crypto_shash_update(desc, (u8 *)&tuple6->src.addr6.l4, sizeof(tuple6->src.addr6.l4)); if (error) return error; } if (fields & F_ARGS_DST_ADDR) { error = crypto_shash_update(desc, (u8 *)&tuple6->dst.addr6.l3, sizeof(tuple6->dst.addr6.l3)); if (error) return error; } if (fields & F_ARGS_DST_PORT) { error = crypto_shash_update(desc, (u8 *)&tuple6->dst.addr6.l4, sizeof(tuple6->dst.addr6.l4)); if (error) return error; } return crypto_shash_update(desc, secret_key, secret_key_len); } /** * RFC 6056, Algorithm 3. * * Just to clarify: Because our port pool is a somewhat complex data structure * (rather than a simple range), ephemerals are now handled by pool4. This * function has been stripped now to only consist of F(). (Hence the name.) */ int rfc6056_f(const struct tuple *tuple6, __u8 fields, unsigned int *result) { union { __be32 as32[4]; __u8 as8[16]; } md5_result; struct shash_desc *desc; int error = 0; desc = __wkmalloc("shash desc", sizeof(struct shash_desc) + crypto_shash_descsize(shash), GFP_ATOMIC); if (!desc) return -ENOMEM; desc->tfm = shash; /* Linux commit: 877b5691f27a1aec0d9b53095a323e45c30069e2 */ #if LINUX_VERSION_LOWER_THAN(5, 2, 0, 9999, 0) desc->flags = 0; #endif error = crypto_shash_init(desc); if (error) { log_debug("crypto_hash_init() failed. Errcode: %d", error); goto end; } error = hash_tuple(desc, fields, tuple6); if (error) { log_debug("crypto_hash_update() failed. Errcode: %d", error); goto end; } error = crypto_shash_final(desc, md5_result.as8); if (error) { log_debug("crypto_hash_digest() failed. Errcode: %d", error); goto end; } *result = (__force __u32)md5_result.as32[3]; /* Fall through. */ end: __wkfree("shash desc", desc); return error; } jool-4.0.7/src/mod/common/db/rbtree.h0000664000175000017500000001243413576247347014315 00000000000000#ifndef SRC_MOD_COMMON_RBTREE_H_ #define SRC_MOD_COMMON_RBTREE_H_ /** * @file * This is just some convenience additions to the kernel's Red-Black Tree * implementation. * I'm sorry it's a macro maze, but the alternative is a lot of redundant code. */ #include /** * rbtree_find - Stock search on a Red-Black tree. * * If you want to read a cleaner version of it, see * https://www.kernel.org/doc/Documentation/rbtree.txt * * @expected is a key (has the key's type). * @compare_fn takes a @type and the key's type as arguments. */ #define rbtree_find(expected, root, compare_fn, type, hook_name) \ ({ \ type *result = NULL; \ struct rb_node *node; \ \ node = (root)->rb_node; \ while (node) { \ type *entry = rb_entry(node, type, hook_name); \ int comparison = compare_fn(entry, expected); \ \ if (comparison < 0) { \ node = node->rb_right; \ } else if (comparison > 0) { \ node = node->rb_left; \ } else { \ result = entry; \ break; \ } \ } \ \ result; \ }) /** * rbtree_add - Add a node to a Red-Black tree. * * Returns NULL on success. If there was a collision, it returns the in-tree * entry that caused it. There are no other possible outcomes. * * If you want to read a cleaner version of it, see * https://www.kernel.org/doc/Documentation/rbtree.txt */ #define rbtree_add(entry, key, root, compare_fn, type, hook_name) \ ({ \ struct rb_node **new = &((root)->rb_node), *parent = NULL; \ type *collision = NULL; \ \ /* Figure out where to put new node */ \ while (*new) { \ type *this = rb_entry(*new, type, hook_name); \ int result = compare_fn(this, key); \ \ parent = *new; \ if (result < 0) { \ new = &((*new)->rb_right); \ } else if (result > 0) { \ new = &((*new)->rb_left); \ } else { \ collision = this; \ break; \ } \ } \ \ /* Add new node and rebalance tree. */ \ if (!collision) { \ rb_link_node(&(entry)->hook_name, parent, new); \ rb_insert_color(&(entry)->hook_name, root); \ } \ \ collision; \ }) /** * A "tree slot" is a temporal memorization of where in a red-black tree might * an node be added. * * This: * * node = tree_find(a); * if (!node) { * error = do_other_things(); * if (error) * return error; * tree_add(a); * } * * Is needlessly slow because, since an add implies a find, there are two * identical tree searches where one would have sufficed. * * Unfortunately, Jool is full of do_other_things() constructs so a simultaneous * find and/or add function is rarely useful. * * Tree slots can be used instead. The slot is found and initialized during the * find, and the add only commits it. If there is a reason to cancel the add, * the slot structure is simply abandoned. Their fairly small size makes them * natural stack citizens. * * struct tree_slot slot; * * node = tree_find(a, &slot); * if (!node) { * error = do_other_things(); * if (error) * return error; * tree_add(&slot); * } * * You need to make sure the tree does not change while you hold an initialized * slot you're planning to commit. */ struct tree_slot { struct rb_root *tree; struct rb_node *entry; struct rb_node *parent; struct rb_node **rb_link; }; /** Prepares @slot for tree traversal. */ void treeslot_init(struct tree_slot *slot, struct rb_root *tree, struct rb_node *entry); /** Adds @slot's node to the tree. Also rebalances while it's at it. */ void treeslot_commit(struct tree_slot *slot); /** * rbtree_find_node - Similar to rbtree_find(), except if it doesn't find the * node it returns the slot where it'd be placed so you can insert something in * there. * * @expected has to be a rb_node, * @compare_cb takes rb_nodes as arguments. */ #define rbtree_find_slot(expected, root, compare_cb, slot) \ ({ \ struct rb_node *collision = NULL; \ struct rb_node *node; \ \ treeslot_init(slot, root, expected); \ node = (root)->rb_node; \ \ while (node) { \ int comparison = compare_cb(node, expected); \ (slot)->parent = node; \ if (comparison < 0) { \ (slot)->rb_link = &node->rb_right; \ node = node->rb_right; \ } else if (comparison > 0) { \ (slot)->rb_link = &node->rb_left; \ node = node->rb_left; \ } else { \ collision = node; \ node = NULL; \ } \ } \ \ collision; \ }) /** * rbtree_find_node - Similar to rbtree_find_slot(), except it doesn't rely * on a struct tree_slot. * * TODO (duplicate code) seriously. The point of this module is to prevent * duplicate code. */ #define rbtree_find_node(expected, root, compare_cb, type, hook_name, parent, \ node) \ ({ \ node = &((root)->rb_node); \ parent = NULL; \ \ /* Figure out where to put new node */ \ while (*node) { \ type *entry = rb_entry(*node, type, hook_name); \ int comparison = compare_cb(entry, expected); \ \ parent = *node; \ if (comparison < 0) { \ node = &((*node)->rb_right); \ } else if (comparison > 0) { \ node = &((*node)->rb_left); \ } else { \ break; \ } \ } \ }) void rbtree_foreach(struct rb_root *root, void (*cb)(struct rb_node *, void *), void *arg); /** * Destroys all the nodes from "root"'s tree. */ void rbtree_clear(struct rb_root *root, void (*destructor)(struct rb_node *, void *), void *arg); #endif /* SRC_MOD_COMMON_RBTREE_H_ */ jool-4.0.7/src/mod/common/db/bib/0000775000175000017500000000000013576247347013471 500000000000000jool-4.0.7/src/mod/common/db/bib/pkt_queue.c0000664000175000017500000001363313576247347015565 00000000000000#include "pkt_queue.h" #include "common/constants.h" #include "mod/common/icmp_wrapper.h" #include "mod/common/log.h" #include "mod/common/wkmalloc.h" #include "mod/common/db/rbtree.h" struct pktqueue { /** The stored packets, sorted by expiration date. (oldest to newest) */ struct list_head node_list; /** The same packets, sorted by IPv4 identifiers. */ struct rb_root node_tree; }; static unsigned long get_timeout(void) { return msecs_to_jiffies(1000 * TCP_INCOMING_SYN); } static void send_icmp_error(struct pktqueue_session *node) { icmp64_send(node->skb, ICMPERR_PORT_UNREACHABLE, 0); kfree_skb(node->skb); wkfree(struct pktqueue_session, node); } static void rm(struct pktqueue *queue, struct pktqueue_session *node) { list_del(&node->list_hook); rb_erase(&node->tree_hook, &queue->node_tree); } struct pktqueue *pktqueue_alloc(void) { struct pktqueue *result; result = wkmalloc(struct pktqueue, GFP_KERNEL); if (!result) return NULL; INIT_LIST_HEAD(&result->node_list); result->node_tree = RB_ROOT; return result; } void pktqueue_release(struct pktqueue *queue) { struct pktqueue_session *node; struct pktqueue_session *tmp; list_for_each_entry_safe(node, tmp, &queue->node_list, list_hook) send_icmp_error(node); wkfree(struct pktqueue, queue); } static struct pktqueue_session *pktqueue_entry(const struct rb_node *node) { return rb_entry(node, struct pktqueue_session, tree_hook); } static int compare_rbnode(const struct rb_node *n1, const struct rb_node *n2) { return taddr6_compare(&pktqueue_entry(n1)->dst6, &pktqueue_entry(n2)->dst6); } /** * On success, assumes the caller's reference to @pkt's skb is being transferred * to @queue. * * The typical return values are * 0: success; packet stored. * -EEXIST: SO already exists; @pkt is redundant. * -ENOSPC: SO is valid but we're already storing too many packets. Please fail * gracefully somehow. */ int pktqueue_add(struct pktqueue *queue, struct packet *pkt, struct ipv6_transport_addr *dst6, bool too_many) { struct pktqueue_session *new; struct rb_node *collision; struct tree_slot slot; new = wkmalloc(struct pktqueue_session, GFP_ATOMIC); if (!new) return -ENOMEM; new->dst6 = *dst6; collision = rbtree_find_slot(&new->tree_hook, &queue->node_tree, compare_rbnode, &slot); if (collision) { wkfree(struct pktqueue_session, new); /* * Should we reset the timer of the existing session? * Don't know; the RFC is silent on this. * My guess is no; if we keep updating the timer and the user is * not attempting a SO, the continuous stream of v4 SYN attempts * will prevent the port unreachable from being sent until the * user stops retrying. Since the user will not be listening at * that point, the ICMP error will be pointless. * * Well, the client often increases the time window between SYNs * to make up for congestion, but still. Six seconds flat should * be enough to assemble a SO and too much lag already for * someone who simply missed some port. */ return -EEXIST; } /* * This is not handled by the caller because it MUST happen after the * collision check above. * -EEXIST has more priority and must never yield an ICMP error. * -ENOSPC always yields an ICMP error. * So if -ENOSPC is validated before, we would end up fetching lots of * misplaced ICMP errors. */ if (too_many) { wkfree(struct pktqueue_session, new); return -ENOSPC; } new->src4 = pkt->tuple.dst.addr4; new->dst4 = pkt->tuple.src.addr4; new->skb = pkt_original_pkt(pkt)->skb; new->update_time = jiffies; treeslot_commit(&slot); list_add_tail(&new->list_hook, &queue->node_list); return 0; } void pktqueue_rm(struct pktqueue *queue, struct ipv4_transport_addr *src4) { struct pktqueue_session *node, *tmp; /* * Yes, full traversal. @src4 is not indexed and this is a rare * operation anyway. * Not to mention, the pkt queue is not allowed to grow much. */ list_for_each_entry_safe(node, tmp, &queue->node_list, list_hook) { if (taddr4_equals(&node->src4, src4)) { list_del(&node->list_hook); rb_erase(&node->tree_hook, &queue->node_tree); kfree_skb(node->skb); wkfree(struct pktqueue_session, node); } } } /** * Returns > 0 if node.session.*4 > session.*4. * Returns < 0 if node.session.*4 < session.*4. * Returns 0 if node.session.*4 == session.*4. */ static int compare_simple(const struct pktqueue_session *node, const struct ipv6_transport_addr *addr) { return taddr6_compare(&node->dst6, addr); } static struct pktqueue_session *__tree_find(struct pktqueue *queue, struct ipv6_transport_addr *addr) { return rbtree_find(addr, &queue->node_tree, compare_simple, struct pktqueue_session, tree_hook); } struct pktqueue_session *pktqueue_find(struct pktqueue *queue, struct ipv6_transport_addr *addr, struct mask_domain *masks) { struct pktqueue_session *node; node = __tree_find(queue, addr); if (!node) return NULL; if (masks && !mask_domain_matches(masks, &node->src4)) return NULL; rm(queue, node); return node; } void pktqueue_put_node(struct pktqueue_session *node) { log_debug("Deleting stored type 1 packet."); kfree_skb(node->skb); wkfree(struct pktqueue_session, node); } /** * This function always succeeds; the return value is the number of packets in * @probes. */ unsigned int pktqueue_prepare_clean(struct pktqueue *queue, struct list_head *probes) { struct pktqueue_session *node, *tmp; const unsigned long TIMEOUT = get_timeout(); unsigned int removed = 0; list_for_each_entry_safe(node, tmp, &queue->node_list, list_hook) { /* * "list" is sorted by expiration date, * so stop on the first unexpired session. */ if (time_before(jiffies, node->update_time + TIMEOUT)) break; rm(queue, node); list_add(&node->list_hook, probes); removed++; } return removed; } void pktqueue_clean(struct list_head *probes) { struct pktqueue_session *node, *tmp; list_for_each_entry_safe(node, tmp, probes, list_hook) send_icmp_error(node); } jool-4.0.7/src/mod/common/db/bib/entry.h0000664000175000017500000000540213576247347014724 00000000000000#ifndef SRC_MOD_NAT64_BIB_ENTRY_H_ #define SRC_MOD_NAT64_BIB_ENTRY_H_ #include "common/session.h" #include "common/types.h" /** * A mask that dictates which IPv4 transport address is being used to mask a * given IPv6 (transport) client. * * Please note that modifications to this structure may need to cascade to * struct bib_entry_usr. */ struct bib_entry { /** The mask. */ struct ipv4_transport_addr ipv4; /** The service/client being masked. */ struct ipv6_transport_addr ipv6; /** Protocol of the channel. */ l4_protocol l4_proto; }; typedef enum session_timer_type { SESSION_TIMER_EST, SESSION_TIMER_TRANS, SESSION_TIMER_SYN4, } session_timer_type; /** * An IPv6 connection and the IPv4 version of it once translated. * * This is a codensed/public version of the structure that is actually stored in * the database. * * Please note that modifications to this structure may need to cascade to * "struct session_entry_usr". */ struct session_entry { /** * IPv6 version of the connection. * * "src" and "dst" are inherited names from the RFC. They are * unfortunate, as they only make sense in the 6-to-4 direction. * * @src6 is the remote IPv6 node's transport address. * We used to call it "remote6". * @dst6 is the address the NAT64 is using to mask the IPv4 endpoint. * We used to call it "local6". */ struct ipv6_transport_addr src6; struct ipv6_transport_addr dst6; /** * IPv4 version of the connection. * * "src" and "dst" are inherited names from the RFC. They are * unfortunate, as they only make sense in the 6-to-4 direction. * * @src4 is the address the NAT64 is using to mask the IPv6 endpoint. * We used to call it "local4". * @dst4 is the remote IPv4 node's transport address. * We used to call it "remote4". */ struct ipv4_transport_addr src4; struct ipv4_transport_addr dst4; /** Transport protocol of the connection this session describes. */ l4_protocol proto; /** Current TCP SM state. Only relevant if @l4_proto == L4PROTO_TCP. */ tcp_state state; /** An indicator of the timer that is going to expire this session. */ session_timer_type timer_type; /** Jiffy (from the epoch) this session was last updated/used. */ unsigned long update_time; /* * Number of jiffies before this session is to be downgraded. (Either * deleted or changed into a transitory state.) */ unsigned long timeout; bool has_stored; }; struct bib_session { /** Are @session.src6, @session.src4, @session.proto set? */ bool bib_set; /** * Are all of @session's fields set? * (@session_set true implies @bib_set true.) */ bool session_set; struct session_entry session; }; bool session_equals(const struct session_entry *s1, const struct session_entry *s2); #endif /* SRC_MOD_NAT64_BIB_ENTRY_H_ */ jool-4.0.7/src/mod/common/db/bib/pkt_queue.h0000664000175000017500000001563513576247347015576 00000000000000#ifndef SRC_MOD_NAT64_BIB_PKT_QUEUE_H_ #define SRC_MOD_NAT64_BIB_PKT_QUEUE_H_ /** * @file * As the name implies, this is just a small database of packets. These packets * are meant to be replied (in the form of an ICMP error) in the future. * * You can find the specifications for this in pages 28 and 29 (look up * "simultaneous open of TCP connections"), and 30 (look up "stored is sent * back") from RFC 6146. * * The RFC gets outright nonsensical and insufficient here; an entire 5-page * section explaining the rationale of this cumbersome hack, a bunch of * references towards former RFCs and an appendix exemplifying expected packet * flow would not have felt out of place. There is a huge chunk of this that is * left unspecified (such as semantics regarding finding sessions lacking src6 * and what kinds of packets should cancel ICMP errors and which shouldn't), so * this code is the result of a bunch of research, common sense and trial and * error. * * In any case, these requirements seem to exist to comply with REQ-4 of RFC * 5382 (http://ietf.10.n7.nabble.com/Simultaneous-connect-td222455.html), * except RFC 5382 wants us to cancel the ICMP error "If during this interval * the NAT receives and translates an outbound SYN for the connection", but this * is not very explicit in the specification of the V4_INIT state in RFC 6146. * I mean it's the only state where the session expiration triggers the ICMP * message, but it'd be nice to see confirmation that the stored packet can be * forgotten about. * * However, Marcelo Bagnulo's seemingly final comments really bend me over to * RFC 5382's behavior: "well, it may be sent inside an ICMP error message in * case the state times out and the V& SYN has not arrived." * (http://www.ietf.org/mail-archive/web/behave/current/msg08660.html) * * So yeah, "Packet Storage". This is how I understand it: * * If a NAT64 receives a IPv4-UDP or a IPv4-ICMP packet for which it has no * state, it should reply a ICMP error because it doesn't know which IPv6 node * the packet should be forwarded to. * * On the other hand, if a NAT64 receives a IPv4-TCP packet for which it has no * state, it should not immediately reply the ICMP error because the IPv4 * endpoint could be attempting a "Simultaneous Open (SO) of TCP Connections" * (http://tools.ietf.org/html/rfc5128#section-3.4). What happens is the NAT64 * stores the packet for 6 seconds; if an IPv6 packet counterpart arrives, * the NAT64 drops the original packet (the IPv4 node will eventually realize * this on its own by means of the handshake), otherwise a ICMP error containing * the original IPv4 packet is generated (because there's no SO going on). * * I believe that the point of this is to allow the endpoints to assemble a * connection whose BIB has a predictable pool4 address. (Because when choosing * the IPv6 packet's mask, Jool will be forced to use the IPv4 packet's * destination address and port.) * * So in summary, this is what needs to be done when a NAT64 receives a v4 SYN * (packet A): * * 1. Store packet A with session [src6,dst6,src4,dst4] = [a,b',c,b] * (where b' is the pool6 prefix + b) * Often, src6 is not available (because the BIB entry does not exist), * so store [*,b',c,b] instead. * 2. If packet B (which is being translated into C) matches A's session***, * Forget packet A. * Continue from the V4 INIT state as normal. * 3. If packet B hasn't arrived after 6 seconds (the V4 INIT state times out), * Wrap A in an ICMP error and send it to the source. * Forget packet A. * * *** whether this means that B should match [*,b'] or C should match [c,b] is * anyone's guess. I'm going with the former since (given that c is random in * 6 to 4) it seems easier to set up from a hole puncher's perspective. Also, * the RFC wants us to store dst6, and there's no use for it otherwise. * It's weird because it means that we need a second lookup (almost always * guaranteed to fail) in the CLOSED state. * * Now, there are two types of stored packets: * 1. Packets stored because there was no BIB entry. ([*,b',c,b] packets) * 2. Packets stored because Address-Dependent Filtering doesn't trust them. * ([a,b',c,b] packets) * * Both are to be either canceled by a suitable v6 packet or timed out and * encapsulated in an ICMP error. * * We're storing packets type 2 in the core BIB/session database, not here. * Why? Because they are associated with a valid session, which is associated * with a valid BIB entry. And those are supposed to be stored in the core * BIB/session database for the sake of the TCP state machine and stuff. Storing * a redundant session in this module just to free tabled_session objects from * the stored field is the kind of micro-optimization that is nothing but asking * for trouble. * * So why can't we store type 2 packets in the core module as well? Because * BIBless sessions cannot be stored on a two-layered tree whose first and main * layer is BIB entries. * * So even though the RFC wants us to think that the two types of packets are * one and the same thing, we need to treat them quite differently. Again, this * module is the section of the code that deals with type 1 packets. */ #include "common/config.h" #include "mod/common/packet.h" #include "mod/common/db/pool4/db.h" struct pktqueue; struct pktqueue_session { struct ipv6_transport_addr dst6; struct ipv4_transport_addr src4; struct ipv4_transport_addr dst4; struct sk_buff *skb; unsigned long update_time; /** Links this packet to the list. See @node_list. */ struct list_head list_hook; /** Links this packet to the tree. See @node_tree. */ struct rb_node tree_hook; }; /** * Call during initialization for the remaining functions to work properly. */ struct pktqueue *pktqueue_alloc(void); /** * Call during destruction to avoid memory leaks. */ void pktqueue_release(struct pktqueue *queue); /** * Stores packet @pkt. */ int pktqueue_add(struct pktqueue *queue, struct packet *pkt, struct ipv6_transport_addr *dst6, bool too_many); void pktqueue_rm(struct pktqueue *queue, struct ipv4_transport_addr *src4); struct pktqueue_session *pktqueue_find(struct pktqueue *queue, struct ipv6_transport_addr *addr, struct mask_domain *masks); void pktqueue_put_node(struct pktqueue_session *node); /** * In a perfect world, `prepare_clean` and `clean` would be a single function. * But we don't want to hold a lock while sending ICMP errors so this is not a * perfect world. * * First lock, then call `prepare_clean` (sending in an empty list), then * unlock, then call `clean`. (Using the same list, obviously.) * This keeps the concurrence-sensitive stuff inside the lock and the slow stuff * outside. */ unsigned int pktqueue_prepare_clean(struct pktqueue *queue, struct list_head *probes); /** * Sends the ICMP errors contained in the @probe list. */ void pktqueue_clean(struct list_head *probes); #endif /* SRC_MOD_NAT64_BIB_PKT_QUEUE_H_ */ jool-4.0.7/src/mod/common/db/bib/entry.c0000664000175000017500000000053013576247347014714 00000000000000#include "entry.h" #include "mod/common/address.h" bool session_equals(const struct session_entry *s1, const struct session_entry *s2) { return taddr6_equals(&s1->src6, &s2->src6) && taddr6_equals(&s1->dst6, &s2->dst6) && taddr4_equals(&s1->src4, &s2->src4) && taddr4_equals(&s1->dst4, &s2->dst4) && (s1->proto == s2->proto); } jool-4.0.7/src/mod/common/db/bib/db.c0000664000175000017500000017443013576247347014153 00000000000000#include "mod/common/db/bib/db.h" #include #include #include "common/constants.h" #include "mod/common/icmp_wrapper.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/route.h" #include "mod/common/wkmalloc.h" #include "mod/common/db/rbtree.h" #include "mod/common/db/bib/pkt_queue.h" #define XGLOBALS(xlator) (xlator->globals.nat64.bib) #define GLOBALS(state) (state->jool.globals.nat64.bib) /* * TODO (performance) Maybe pack this? */ struct tabled_bib { /** * src6 always belongs to the IPv6 node. dst4 always belongs to the IPv4 * node. * * ---- ---- * src6 ---- dst6 - src4 ---- dst4 * * Admittedly, this is pretty counterintuitive for packets traveling * from 4 to 6. * But it has to be like this because the RFC uses these names. If we * rename these to something like "remote6", "local6", "local4" and * "remote4", code review becomes a nightmare. * * The remaining fields can be found in tabled_session. */ struct ipv6_transport_addr src6; struct ipv4_transport_addr src4; l4_protocol proto; bool is_static; struct rb_node hook6; struct rb_node hook4; struct rb_root sessions; }; /* * TODO (performance) Maybe pack this? */ struct tabled_session { /** * We don't strictly need to store @dst6; @dst6 is always @dst4 plus the * pool6 prefix. But we store it anyway so I don't have to make more * mess constatly in this module. */ struct ipv6_transport_addr dst6; struct ipv4_transport_addr dst4; tcp_state state; /** MUST NOT be NULL. */ struct tabled_bib *bib; /** * Sessions only need one tree. The rationale is different for TCP/UDP * vs ICMP sessions: * * In TCP and UDP the dst4 address is just the dst6 address minus the * pool6 prefix. Therefore, and assuming the pool6 prefix stays still * (something I'm well willing to enforce), sessions indexed by dst4 * yield exactly the same tree as sessions indexed by dst6. * * In ICMP, dst4.l4 is the same as src4.l4 instead of dst6.l4. This * would normally mean that dst6 sessions would yield a different tree * than dst4 sessions. Luckily, this is not the case because dst4.l4 is * not meaningful to the tree search in ICMP sessions; sessions are * already grouped by BIB entry, which means all of a BIB entry's * sessions will have different dst4.l3. (Which has more precedence than * dst4.l4 during searches.) * (And again, dst4.l3 is just dst6.l3 minus the prefix.) * * This might be a little annoying to wrap one's head around, but I * think it's really nice that we only need to search and rebalance * three trees (instead of four) whenever we need to add a BIB/session * couple during translation. * It's also a very elegant hack; it doesn't result in any special case * handling in the whole code below. */ struct rb_node tree_hook; unsigned long update_time; /** MUST NOT be NULL. */ struct expire_timer *expirer; struct list_head list_hook; /** See pke_queue.h for some thoughts on stored packets. */ struct sk_buff *stored; }; struct bib_session_tuple { struct tabled_bib *bib; struct tabled_session *session; }; /** * A session that is about to cause Jool to create and send a new packet. * * This can happen in two situations: * - An established TCP session has been hanging for too long and Jool wants to * query the endpoints for status. * This is done by sending an empty TCP packet that should simply be ACK'd. * - What initially seemed like a potential TCP SO ended up expiring after a 6- * second wait so it has to be ICMP errored. See pkt_queue.h. */ struct probing_session { struct session_entry session; struct sk_buff *skb; struct list_head list_hook; }; struct expire_timer { struct list_head sessions; session_timer_type type; fate_cb decide_fate_cb; }; struct bib_table { /** Indexes the entries using their IPv6 identifiers. */ struct rb_root tree6; /** Indexes the entries using their IPv4 identifiers. */ struct rb_root tree4; spinlock_t lock; /** Expires this table's established sessions. */ struct expire_timer est_timer; /* * ============================================================= * Fields below are only relevant in the TCP table. * (If you need to know what "type 1" and "type 2" mean, see the * pkt_queue module's .h.) * ============================================================= */ /** * Expires this table's transitory sessions. * This is initialized in the UDP/ICMP tables, but all their operations * become no-ops. */ struct expire_timer trans_timer; /** * Expires this table's type-2 packets and their sessions. * This is initialized in the UDP/ICMP tables, but all their operations * become no-ops. */ struct expire_timer syn4_timer; /** Current number of packets (of both types) in the table. */ int pkt_count; /** * Packet storage for type 1 packets. * This is NULL in UDP/ICMP. */ struct pktqueue *pkt_queue; }; struct bib { /** The session table for UDP conversations. */ struct bib_table udp; /** The session table for TCP connections. */ struct bib_table tcp; /** The session table for ICMP conversations. */ struct bib_table icmp; struct kref refs; }; static struct kmem_cache *bib_cache; static struct kmem_cache *session_cache; #define alloc_bib(flags) wkmem_cache_alloc("bib entry", bib_cache, flags) #define alloc_session(flags) wkmem_cache_alloc("session", session_cache, flags) #define free_bib(bib) wkmem_cache_free("bib entry", bib_cache, bib) #define free_session(session) wkmem_cache_free("session", session_cache, session) static struct tabled_bib *bib6_entry(const struct rb_node *node) { return node ? rb_entry(node, struct tabled_bib, hook6) : NULL; } static struct tabled_bib *bib4_entry(const struct rb_node *node) { return node ? rb_entry(node, struct tabled_bib, hook4) : NULL; } static struct tabled_session *node2session(const struct rb_node *node) { return node ? rb_entry(node, struct tabled_session, tree_hook) : NULL; } /** * "[Convert] tabled BIB to BIB entry" */ static void tbtobe(struct tabled_bib *tabled, struct bib_entry *bib) { if (!bib) return; bib->ipv6 = tabled->src6; bib->ipv4 = tabled->src4; bib->l4_proto = tabled->proto; } static unsigned long get_timeout(struct xlator *jool, struct expire_timer *expirer) { struct bib *db = jool->nat64.bib; __u32 msecs; if (&db->tcp.est_timer == expirer) msecs = XGLOBALS(jool).ttl.tcp_est; else if (&db->tcp.trans_timer == expirer) msecs = XGLOBALS(jool).ttl.tcp_trans; else if (&db->udp.est_timer == expirer) msecs = XGLOBALS(jool).ttl.udp; else if (&db->tcp.syn4_timer == expirer) msecs = 1000 * TCP_INCOMING_SYN; else if (&db->icmp.est_timer == expirer) msecs = XGLOBALS(jool).ttl.icmp; else { /* * This is known to happen whenever the timer is cleaning. * It's not cause for concern. */ msecs = 0; } return msecs_to_jiffies(msecs); } /** * "[Convert] tabled session to session entry" */ static void tstose(struct xlator *jool, struct tabled_session *ts, struct session_entry *se) { se->src6 = ts->bib->src6; se->dst6 = ts->dst6; se->src4 = ts->bib->src4; se->dst4 = ts->dst4; se->proto = ts->bib->proto; se->state = ts->state; se->timer_type = ts->expirer->type; se->update_time = ts->update_time; se->timeout = get_timeout(jool, ts->expirer); se->has_stored = !!ts->stored; } /** * "[Convert] tabled BIB to bib_session" */ static void tbtobs(struct tabled_bib *tabled, struct bib_session *bs) { if (!bs) return; bs->bib_set = true; bs->session.src6 = tabled->src6; bs->session.src4 = tabled->src4; bs->session.proto = tabled->proto; } /** * [Convert] tabled session to bib_session" */ static void tstobs(struct xlation *state, struct tabled_session *ts) { state->entries.bib_set = true; state->entries.session_set = true; tstose(&state->jool, ts, &state->entries.session); } /** * One-liner to get the session table corresponding to the @proto protocol. */ static struct bib_table *get_table(struct bib *db, l4_protocol proto) { switch (proto) { case L4PROTO_TCP: return &db->tcp; case L4PROTO_UDP: return &db->udp; case L4PROTO_ICMP: return &db->icmp; case L4PROTO_OTHER: break; } WARN(true, "Unsupported transport protocol: %u.", proto); return NULL; } static void kill_stored_pkt(struct bib_table *table, struct tabled_session *session) { if (!session->stored) return; log_debug("Deleting stored type 2 packet."); kfree_skb(session->stored); session->stored = NULL; table->pkt_count--; } int bib_setup(void) { bib_cache = kmem_cache_create("bib_nodes", sizeof(struct tabled_bib), 0, 0, NULL); if (!bib_cache) return -ENOMEM; session_cache = kmem_cache_create("session_nodes", sizeof(struct tabled_session), 0, 0, NULL); if (!session_cache) { kmem_cache_destroy(bib_cache); return -ENOMEM; } return 0; } void bib_teardown(void) { kmem_cache_destroy(bib_cache); kmem_cache_destroy(session_cache); } static enum session_fate just_die(struct session_entry *session, void *arg) { return FATE_RM; } static void init_expirer(struct expire_timer *expirer, unsigned long timeout, session_timer_type type, fate_cb fate_cb) { INIT_LIST_HEAD(&expirer->sessions); expirer->type = type; expirer->decide_fate_cb = fate_cb; } static void init_table(struct bib_table *table, unsigned long est_timeout, unsigned long trans_timeout, fate_cb est_cb) { table->tree6 = RB_ROOT; table->tree4 = RB_ROOT; spin_lock_init(&table->lock); init_expirer(&table->est_timer, est_timeout, SESSION_TIMER_EST, est_cb); init_expirer(&table->trans_timer, trans_timeout, SESSION_TIMER_TRANS, just_die); /* TODO "just_die"? what about the stored packet? */ init_expirer(&table->syn4_timer, TCP_INCOMING_SYN, SESSION_TIMER_SYN4, just_die); table->pkt_count = 0; table->pkt_queue = NULL; } struct bib *bib_alloc(void) { struct bib *db; db = wkmalloc(struct bib, GFP_KERNEL); if (!db) return NULL; init_table(&db->udp, UDP_DEFAULT, 0, just_die); init_table(&db->tcp, TCP_EST, TCP_TRANS, tcp_est_expire_cb); init_table(&db->icmp, ICMP_DEFAULT, 0, just_die); db->tcp.pkt_queue = pktqueue_alloc(); if (!db->tcp.pkt_queue) { wkfree(struct bib, db); return NULL; } kref_init(&db->refs); return db; } void bib_get(struct bib *db) { kref_get(&db->refs); } /** * Potentially includes a laggy packet fetch; please do not hold spinlocks while * calling this function! */ static void release_session(struct rb_node *node, void *arg) { struct tabled_session *session = node2session(node); if (session->stored) { icmp64_send(session->stored, ICMPERR_PORT_UNREACHABLE, 0); kfree_skb(session->stored); } free_session(session); } /** * Potentially includes laggy packet fetches; please do not hold spinlocks while * calling this function! */ static void release_bib_entry(struct rb_node *node, void *arg) { struct tabled_bib *bib = bib4_entry(node); rbtree_clear(&bib->sessions, release_session, NULL); free_bib(bib); } static void bib_release(struct kref *refs) { struct bib *db; db = container_of(refs, struct bib, refs); /* * The trees share the entries, so only one tree of each protocol * needs to be emptied. */ rbtree_clear(&db->udp.tree4, release_bib_entry, NULL); rbtree_clear(&db->tcp.tree4, release_bib_entry, NULL); rbtree_clear(&db->icmp.tree4, release_bib_entry, NULL); pktqueue_release(db->tcp.pkt_queue); wkfree(struct bib, db); } void bib_put(struct bib *db) { kref_put(&db->refs, bib_release); } static void log_bib(struct xlator *jool, struct tabled_bib *bib, char *action) { #if LINUX_VERSION_AT_LEAST(4, 8, 0, 9999, 0) time64_t tsec; #else struct timeval tval; #endif struct tm time; if (!jool->globals.nat64.bib.bib_logging) return; #if LINUX_VERSION_AT_LEAST(4, 8, 0, 9999, 0) tsec = ktime_get_real_seconds(); time64_to_tm(tsec, 0, &time); #else do_gettimeofday(&tval); time_to_tm(tval.tv_sec, 0, &time); #endif log_info("%s %ld/%d/%d %d:%d:%d (GMT) - %s %pI6c#%u to %pI4#%u (%s)", jool->iname, 1900 + time.tm_year, time.tm_mon + 1, time.tm_mday, time.tm_hour, time.tm_min, time.tm_sec, action, &bib->src6.l3, bib->src6.l4, &bib->src4.l3, bib->src4.l4, l4proto_to_string(bib->proto)); } static void log_new_bib(struct xlator *jool, struct tabled_bib *bib) { return log_bib(jool, bib, "Mapped"); } static void log_session(struct xlator *jool, struct tabled_session *session, char *action) { #if LINUX_VERSION_AT_LEAST(4, 8, 0, 9999, 0) time64_t tsec; #else struct timeval tval; #endif struct tm time; if (!jool->globals.nat64.bib.session_logging) return; #if LINUX_VERSION_AT_LEAST(4, 8, 0, 9999, 0) tsec = ktime_get_real_seconds(); time64_to_tm(tsec, 0, &time); #else do_gettimeofday(&tval); time_to_tm(tval.tv_sec, 0, &time); #endif log_info("%s %ld/%d/%d %d:%d:%d (GMT) - %s %pI6c#%u|%pI6c#%u|" "%pI4#%u|%pI4#%u|%s", jool->iname, 1900 + time.tm_year, time.tm_mon + 1, time.tm_mday, time.tm_hour, time.tm_min, time.tm_sec, action, &session->bib->src6.l3, session->bib->src6.l4, &session->dst6.l3, session->dst6.l4, &session->bib->src4.l3, session->bib->src4.l4, &session->dst4.l3, session->dst4.l4, l4proto_to_string(session->bib->proto)); } static void log_new_session(struct xlator *jool, struct tabled_session *session) { return log_session(jool, session, "Added session"); } /** * This function does not return a result because whatever needs to happen later * needs to happen regardless of probe status. * * This function does not actually send the probe; it merely prepares it so the * caller can commit to sending it after releasing the spinlock. */ static void handle_probe(struct bib_table *table, struct list_head *probes, struct tabled_session *session, struct session_entry *tmp) { struct probing_session *probe; if (WARN(!probes, "Probe needed but caller doesn't support it")) goto discard_probe; /* * Why add a dummy session instead of the real one? * In the case of TCP probes it's because the real session's list hook * must remain attached to the database. * In the case of ICMP errors it's because the fact that a session * removal can cascade into a BIB entry removal really complicates * things. * This way requires this malloc but it's otherwise very clean. */ probe = wkmalloc(struct probing_session, GFP_ATOMIC); if (!probe) goto discard_probe; probe->session = *tmp; if (session->stored) { probe->skb = session->stored; session->stored = NULL; table->pkt_count--; } else { probe->skb = NULL; } list_add(&probe->list_hook, probes); return; discard_probe: /* * We're going to have to pretend that we sent it anyway; a probe * failure should not prevent the state from evolving from V4 INIT and * we do not want that massive thing to linger in the database anymore, * especially if we failed due to a memory allocation. */ kill_stored_pkt(table, session); } static void rm(struct xlator *jool, struct bib_table *table, struct list_head *probes, struct tabled_session *session, struct session_entry *tmp) { struct tabled_bib *bib = session->bib; if (session->stored) handle_probe(table, probes, session, tmp); rb_erase(&session->tree_hook, &bib->sessions); list_del(&session->list_hook); log_session(jool, session, "Forgot session"); free_session(session); jstat_dec(jool->stats, JSTAT_SESSIONS); if (!bib->is_static && RB_EMPTY_ROOT(&bib->sessions)) { rb_erase(&bib->hook6, &table->tree6); rb_erase(&bib->hook4, &table->tree4); log_bib(jool, bib, "Forgot"); free_bib(bib); jstat_dec(jool->stats, JSTAT_BIB_ENTRIES); } } static void handle_fate_timer(struct tabled_session *session, struct expire_timer *timer) { session->update_time = jiffies; session->expirer = timer; list_del(&session->list_hook); list_add_tail(&session->list_hook, &timer->sessions); } static int queue_unsorted_session(struct bib_table *table, struct tabled_session *session, session_timer_type timer_type, bool remove_first) { struct expire_timer *expirer; struct list_head *list; struct list_head *cursor; struct tabled_session *old; switch (timer_type) { case SESSION_TIMER_EST: expirer = &table->est_timer; break; case SESSION_TIMER_TRANS: expirer = &table->trans_timer; break; case SESSION_TIMER_SYN4: expirer = &table->syn4_timer; break; default: log_warn_once("incoming joold session's timer (%d) is unknown.", timer_type); return -EINVAL; } list = &expirer->sessions; for (cursor = list->prev; cursor != list; cursor = cursor->prev) { old = list_entry(cursor, struct tabled_session, list_hook); if (old->update_time < session->update_time) break; } if (remove_first) list_del(&session->list_hook); list_add(&session->list_hook, cursor); session->expirer = expirer; return 0; } /** * Decides what should happen to @session via @cb, and carries the verdict out. * Returns true if the packet should be translated, false if the packet should * be dropped. (Assuming that the caller has a packet linked to @session.) * * Assumes result->session has been set (result->session_set is true). */ static bool decide_fate(struct xlator *jool, struct collision_cb *cb, struct bib_table *table, struct tabled_session *session, struct list_head *probes) { struct session_entry tmp; enum session_fate fate; if (!cb) return true; tstose(jool, session, &tmp); fate = cb->cb(&tmp, cb->arg); /* The callback above is entitled to tweak these fields. */ session->state = tmp.state; session->update_time = tmp.update_time; if (!tmp.has_stored) kill_stored_pkt(table, session); /* Also the expirer, which is down below. */ switch (fate) { case FATE_TIMER_EST: handle_fate_timer(session, &table->est_timer); break; case FATE_PROBE: /* TODO ICMP errors aren't supposed to drop down to TRANS. */ handle_probe(table, probes, session, &tmp); /* Fall through. */ case FATE_TIMER_TRANS: handle_fate_timer(session, &table->trans_timer); break; case FATE_RM: rm(jool, table, probes, session, &tmp); break; case FATE_PRESERVE: break; case FATE_DROP: return false; case FATE_TIMER_SLOW: /* * Nothing to do with the return value. * If timer type was invalid, well don't change the expirer. * We left a warning in the log. */ queue_unsorted_session(table, session, tmp.timer_type, true); break; } return true; } /** * send_probe_packet - Sends a probe packet to @session's IPv6 endpoint, * to trigger a confirmation ACK if the connection is still alive. * * From RFC 6146 page 30. * * @session: the established session that has been inactive for too long. * * Best if not called with spinlocks held. */ static void send_probe_packet(struct net *ns, struct session_entry *session) { struct packet pkt; struct sk_buff *skb; struct ipv6hdr *iph; struct tcphdr *th; int error; unsigned int l3_hdr_len = sizeof(*iph); unsigned int l4_hdr_len = sizeof(*th); skb = alloc_skb(LL_MAX_HEADER + l3_hdr_len + l4_hdr_len, GFP_ATOMIC); if (!skb) { log_debug("Could now allocate a probe packet."); goto fail; } skb_reserve(skb, LL_MAX_HEADER); skb_put(skb, l3_hdr_len + l4_hdr_len); skb_reset_mac_header(skb); skb_reset_network_header(skb); skb_set_transport_header(skb, l3_hdr_len); iph = ipv6_hdr(skb); iph->version = 6; iph->priority = 0; iph->flow_lbl[0] = 0; iph->flow_lbl[1] = 0; iph->flow_lbl[2] = 0; iph->payload_len = cpu_to_be16(l4_hdr_len); iph->nexthdr = NEXTHDR_TCP; iph->hop_limit = 255; iph->saddr = session->dst6.l3; iph->daddr = session->src6.l3; th = tcp_hdr(skb); th->source = cpu_to_be16(session->dst6.l4); th->dest = cpu_to_be16(session->src6.l4); th->seq = htonl(0); th->ack_seq = htonl(0); th->res1 = 0; th->doff = l4_hdr_len / 4; th->fin = 0; th->syn = 0; th->rst = 0; th->psh = 0; th->ack = 1; th->urg = 0; th->ece = 0; th->cwr = 0; th->window = htons(8192); th->check = 0; th->urg_ptr = 0; /* TODO (performance) can't we just defer this to somebody else? */ th->check = csum_ipv6_magic(&iph->saddr, &iph->daddr, l4_hdr_len, IPPROTO_TCP, csum_partial(th, l4_hdr_len, 0)); skb->ip_summed = CHECKSUM_UNNECESSARY; pkt_fill(&pkt, skb, L3PROTO_IPV6, L4PROTO_TCP, NULL, th + 1, NULL); if (!route6(ns, &pkt)) { kfree_skb(skb); goto fail; } /* Implicit kfree_skb(skb) here. */ #if LINUX_VERSION_AT_LEAST(4, 4, 0, 8, 0) error = dst_output(ns, NULL, skb); #else error = dst_output(skb); #endif if (error) { log_debug("dst_output() returned errcode %d.", error); goto fail; } return; fail: log_debug("A TCP connection will probably break."); } /** * Sends all the probes and ICMP errors listed in @probes. */ static void post_fate(struct net *ns, struct list_head *probes) { struct probing_session *probe; struct probing_session *tmp; list_for_each_entry_safe(probe, tmp, probes, list_hook) { if (probe->skb) { /* The "probe" is not a probe; it's an ICMP error. */ icmp64_send(probe->skb, ICMPERR_PORT_UNREACHABLE, 0); kfree_skb(probe->skb); } else { /* Actual TCP probe. */ send_probe_packet(ns, &probe->session); } wkfree(struct probing_session, probe); } } struct slot_group { struct tree_slot bib6; struct tree_slot bib4; struct tree_slot session; }; static void commit_bib_add(struct xlator *jool, struct slot_group *slots) { treeslot_commit(&slots->bib6); treeslot_commit(&slots->bib4); jstat_inc(jool->stats, JSTAT_BIB_ENTRIES); } static void commit_session_add(struct xlator *jool, struct tree_slot *slot) { treeslot_commit(slot); jstat_inc(jool->stats, JSTAT_SESSIONS); } static void attach_timer(struct tabled_session *session, struct expire_timer *expirer) { session->update_time = jiffies; session->expirer = expirer; list_add_tail(&session->list_hook, &expirer->sessions); } static int compare_src6(struct tabled_bib *a, struct ipv6_transport_addr *b) { return taddr6_compare(&a->src6, b); } static int compare_src6_rbnode(struct rb_node *a, struct rb_node *b) { return taddr6_compare(&bib6_entry(a)->src6, &bib6_entry(b)->src6); } static int compare_src4(struct tabled_bib const *a, struct ipv4_transport_addr const *b) { return taddr4_compare(&a->src4, b); } static int compare_src4_rbnode(struct rb_node *a, struct rb_node *b) { return taddr4_compare(&bib4_entry(a)->src4, &bib4_entry(b)->src4); } static int compare_dst4(struct tabled_session *a, struct tabled_session *b) { return taddr4_compare(&a->dst4, &b->dst4); } static struct tabled_bib *find_bib6(struct bib_table *table, struct ipv6_transport_addr *addr) { return rbtree_find(addr, &table->tree6, compare_src6, struct tabled_bib, hook6); } static struct tabled_bib *find_bib4(struct bib_table *table, struct ipv4_transport_addr *addr) { return rbtree_find(addr, &table->tree4, compare_src4, struct tabled_bib, hook4); } static struct tabled_bib *find_bibtree6_slot(struct bib_table *table, struct tabled_bib *new, struct tree_slot *slot) { struct rb_node *collision; collision = rbtree_find_slot(&new->hook6, &table->tree6, compare_src6_rbnode, slot); return bib6_entry(collision); } static struct tabled_bib *find_bibtree4_slot(struct bib_table *table, struct tabled_bib *new, struct tree_slot *slot) { struct rb_node *collision; collision = rbtree_find_slot(&new->hook4, &table->tree4, compare_src4_rbnode, slot); return bib4_entry(collision); } /** * Attempts to find the slot where @new would be inserted if you wanted to add * it to @bib's session tree. * * On success: * - Initializes @slots as the place (in @bib's session tree) where @new would * be inserted if you wanted to do so. * - Returns NULL. * * If @session collides with @bib's session S: * - @slot is undefined. * - S is returned. * * As a side effect, @allow will tell you whether the entry is allowed to be * added to the tree if address-dependent filtering is enabled. Send NULL if you * don't care about that. * * Please notice: This searches via @new's dst4, *not* dst6. @new *must* carry * an initialized dst4. */ static struct tabled_session *find_session_slot(struct tabled_bib *bib, struct tabled_session *new, bool *allow, struct tree_slot *slot) { struct tabled_session *session; struct rb_node *node; int comparison; treeslot_init(slot, &bib->sessions, &new->tree_hook); node = bib->sessions.rb_node; if (allow) *allow = false; while (node) { session = node2session(node); comparison = compare_dst4(session, new); if (allow && (session->dst4.l3.s_addr == new->dst4.l3.s_addr)) *allow = true; slot->parent = node; if (comparison < 0) { slot->rb_link = &node->rb_right; node = node->rb_right; } else if (comparison > 0) { slot->rb_link = &node->rb_left; node = node->rb_left; } else { return session; } } return NULL; } static int alloc_bib_session(struct bib_session_tuple *tuple) { tuple->bib = alloc_bib(GFP_ATOMIC); if (!tuple->bib) return -ENOMEM; tuple->session = alloc_session(GFP_ATOMIC); if (!tuple->session) { free_bib(tuple->bib); return -ENOMEM; } return 0; } static int create_bib_session6(struct bib_session_tuple *tuple, struct tuple *tuple6, struct ipv4_transport_addr *dst4, tcp_state state) { int error; error = alloc_bib_session(tuple); if (error) return error; /* * Hooks, expirer fields and session->bib are left uninitialized since * they depend on database knowledge. */ tuple->bib->src6 = tuple6->src.addr6; /* * src4 is left uninitialized on purpose. * It needs to be inferred later by comparing the masks and the existing * BIB entries. */ tuple->bib->proto = tuple6->l4_proto; tuple->bib->is_static = false; tuple->bib->sessions = RB_ROOT; tuple->session->dst6 = tuple6->dst.addr6; tuple->session->dst4 = *dst4; tuple->session->state = state; tuple->session->stored = NULL; return 0; } static struct tabled_session *create_session4(struct tuple *tuple4, struct ipv6_transport_addr *dst6, tcp_state state) { struct tabled_session *session; session = alloc_session(GFP_ATOMIC); if (!session) return NULL; /* * Hooks, expirer fields and session->bib are left uninitialized since * they depend on database knowledge. */ session->dst6 = *dst6; session->dst4 = tuple4->src.addr4; session->state = state; session->stored = NULL; return session; } static int create_bib_session(struct session_entry *session, struct bib_session_tuple *tuple) { int error; error = alloc_bib_session(tuple); if (error) return error; /* * Hooks, most expirer fields and session->bib are left uninitialized * since they depend on database knowledge. */ tuple->bib->src6 = session->src6; tuple->bib->src4 = session->src4; tuple->bib->proto = session->proto; tuple->bib->is_static = false; tuple->bib->sessions = RB_ROOT; tuple->session->dst6 = session->dst6; tuple->session->dst4 = session->dst4; tuple->session->state = session->state; tuple->session->update_time = session->update_time; tuple->session->stored = NULL; return 0; } /** * Boilerplate code to finish hanging @new->session (and potentially @new->bib * as well) on one af @table's trees. 6-to-4 direction. * * It assumes @slots already describes the tree containers where the entries are * supposed to be added. */ static void commit_add6(struct xlation *state, struct bib_session_tuple *old, struct bib_session_tuple *new, struct slot_group *slots, struct expire_timer *expirer) { new->session->bib = old->bib ? : new->bib; commit_session_add(&state->jool, &slots->session); attach_timer(new->session, expirer); log_new_session(&state->jool, new->session); tstobs(state, new->session); new->session = NULL; /* Do not free! */ if (!old->bib) { commit_bib_add(&state->jool, slots); log_new_bib(&state->jool, new->bib); new->bib = NULL; /* Do not free! */ } } /** * Boilerplate code to finish hanging *@new on one af @table's trees. * 4-to-6 direction. * * It assumes @slot already describes the tree container where the session is * supposed to be added. */ static void commit_add4(struct xlation *state, struct bib_session_tuple *old, struct tabled_session **new, struct tree_slot *slot, struct expire_timer *expirer) { struct tabled_session *session = *new; session->bib = old->bib; commit_session_add(&state->jool, slot); attach_timer(session, expirer); log_new_session(&state->jool, session); tstobs(state, session); *new = NULL; /* Do not free! */ } /** * Boilerplate code to finish hanging *@new on one af @table's trees. * joold version. * * It assumes @slots already describes the tree containers where the entries are * supposed to be added. */ static int commit_add(struct xlator *jool, struct bib_table *table, struct bib_session_tuple *old, struct bib_session_tuple *new, struct slot_group *slots, session_timer_type timer_type) { int error; error = queue_unsorted_session(table, new->session, timer_type, false); if (error) return error; new->session->bib = old->bib ? : new->bib; commit_session_add(jool, &slots->session); log_new_session(jool, new->session); new->session = NULL; /* Do not free! */ if (!old->bib) { commit_bib_add(jool, slots); log_new_bib(jool, new->bib); new->bib = NULL; /* Do not free! */ } return 0; } struct detach_args { struct bib_table *table; struct sk_buff *probes; int detached; }; static void detach_session(struct rb_node *node, void *arg) { struct tabled_session *session = node2session(node); struct detach_args *args = arg; list_del(&session->list_hook); if (session->stored) args->table->pkt_count--; args->detached--; } static int detach_sessions(struct bib_table *table, struct tabled_bib *bib) { struct detach_args arg = { .table = table, .detached = 0, }; rbtree_foreach(&bib->sessions, detach_session, &arg); return arg.detached; } static void detach_bib(struct xlator *jool, struct bib_table *table, struct tabled_bib *bib) { rb_erase(&bib->hook6, &table->tree6); rb_erase(&bib->hook4, &table->tree4); jstat_dec(jool->stats, JSTAT_BIB_ENTRIES); /* NOTE THAT detach_sessions() RETURNS NEGATIVE. */ jstat_add(jool->stats, JSTAT_SESSIONS, detach_sessions(table, bib)); } struct bib_delete_list { struct rb_node *first; }; static void add_to_delete_list(struct bib_delete_list *bdl, struct rb_node *node) { node->rb_right = bdl->first; bdl->first = node; } static void commit_delete_list(struct bib_delete_list *list) { struct rb_node *node; struct rb_node *next; for (node = list->first; node; node = next) { next = node->rb_right; release_bib_entry(node, NULL); } } /** * Tests whether @predecessor's immediate succesor tree slot is a suitable * placeholder for @bib. Returns the colliding node. * * (That is, returns NULL on success, a collision on failure.) * * In other words: * Assumes that @predecessor belongs to @table's v4 tree and that it is @bib's * predecessor. (ie. @predecessor's transport address is @bib's transport * address - 1.) You want to test whether @bib can be inserted to the tree. * If @predecessor's succesor collides with @bib (ie. it has @bib's v4 address), * it returns the colliding succesor. * If @predecessor's succesor does not collide with @bib, it returns NULL and * initializes @slot so you can actually add @bib to the tree. */ static struct tabled_bib *try_next(struct bib_table *table, struct tabled_bib *predecessor, struct tabled_bib *bib, struct tree_slot *slot) { struct tabled_bib *next; next = bib4_entry(rb_next(&predecessor->hook4)); if (!next) { /* There is no succesor and therefore no collision. */ slot->tree = &table->tree4; slot->entry = &bib->hook4; slot->parent = &predecessor->hook4; slot->rb_link = &slot->parent->rb_right; return NULL; } if (taddr4_equals(&next->src4, &bib->src4)) return next; /* Next is yet another collision. */ slot->tree = &table->tree4; slot->entry = &bib->hook4; if (predecessor->hook4.rb_right) { slot->parent = &next->hook4; slot->rb_link = &slot->parent->rb_left; } else { slot->parent = &predecessor->hook4; slot->rb_link = &slot->parent->rb_right; } return NULL; } /** * This is this function in pseudocode form: * * // wraps around until offset - 1 * foreach (mask in @masks starting from some offset) * if (mask is not taken by an existing BIB entry from @table) * init the new BIB entry, @bib, using mask * init @slot as the tree slot where @bib should be added * return success (0) * return failure (-ENOENT) * */ static int find_available_mask(struct bib_table *table, struct mask_domain *masks, struct tabled_bib *bib, struct tree_slot *slot) { struct tabled_bib *collision = NULL; bool consecutive; int error; /* * We're going to assume the masks are generally consecutive. * I think it's a fair assumption until someone requests otherwise as a * new feature. * This allows us to find an unoccupied mask with minimal further tree * traversal. */ do { error = mask_domain_next(masks, &bib->src4, &consecutive); if (error) goto end; /* * Just for the sake of clarity: * @consecutive is never true on the first iteration. */ collision = consecutive ? try_next(table, collision, bib, slot) : find_bibtree4_slot(table, bib, slot); } while (collision); end: mask_domain_commit(masks); return error; } static int upgrade_pktqueue_session(struct xlator *jool, struct bib_table *table, struct mask_domain *masks, struct bib_session_tuple *new, struct bib_session_tuple *old) { struct pktqueue_session *sos; /* "simultaneous open" session */ struct tabled_bib *bib; struct tabled_bib *collision; struct tabled_session *session; struct tree_slot bib_slot6; struct tree_slot bib_slot4; int error; if (new->bib->proto != L4PROTO_TCP) return -ESRCH; sos = pktqueue_find(table->pkt_queue, &new->session->dst6, masks); if (!sos) return -ESRCH; table->pkt_count--; if (!masks) { /* * This happens during joold adds. It's a lost cause. * * The point of SO is that the v4 node decides session [*, dst6, * src4, dst4] and the first v6 packet needing a new mask that * matches that session keeps it. * * But we're not synchronizing pktqueue sessions, because we * want to keep joold as simple as possible (which is not simple * enough), at least so long as it remains a niche thing. * * So if one Jool instance gets the v4 SO packet and some other * instance gets the v6 SO packet, the latter will choose a * random src4 and mess up the SO. That situation is this if. * Our reaction is to go like "whatever" and pretend that we * never received the v4 packet. * * One might argue that we should send the ICMP error when this * happens. But that doesn't yield satisfactory behavior either; * The SO failed anyway. To fix this properly we would need to * sync the pktqueue sessions. Combine that with the fact that * sending the ICMP error would be a pain in the ass (because we * want to do it outside of the spinlock, and we don't want to * send it if the random src4 selected happens to match the * stored session), and the result is a big fat meh. I really * don't want to do it. * * The admin signed a best-effort contract when s/he enabled * joold anyway. And this is only a problem in active-active * scenarios. */ pktqueue_put_node(sos); return -ESRCH; } log_debug("Simultaneous Open!"); /* * We're going to pretend that @sos has been a valid V4 INIT session all * along. */ error = alloc_bib_session(old); if (error) { pktqueue_put_node(sos); return error; } bib = old->bib; session = old->session; bib->src6 = new->bib->src6; bib->src4 = sos->src4; bib->proto = L4PROTO_TCP; bib->is_static = false; bib->sessions = RB_ROOT; session->dst6 = sos->dst6; session->dst4 = sos->dst4; session->state = V4_INIT; session->bib = bib; session->update_time = jiffies; session->stored = NULL; /* * This *has* to work. src6 wasn't in the database because we just * looked it up and src4 wasn't either because pktqueue had it. */ collision = find_bibtree6_slot(table, bib, &bib_slot6); if (WARN(collision, "BIB entry was and then wasn't in the v6 tree.")) goto trainwreck; collision = find_bibtree4_slot(table, bib, &bib_slot4); if (WARN(collision, "BIB entry was and then wasn't in the v4 tree.")) goto trainwreck; treeslot_commit(&bib_slot6); treeslot_commit(&bib_slot4); jstat_inc(jool->stats, JSTAT_BIB_ENTRIES); rb_link_node(&session->tree_hook, NULL, &bib->sessions.rb_node); rb_insert_color(&session->tree_hook, &bib->sessions); attach_timer(session, &table->syn4_timer); jstat_inc(jool->stats, JSTAT_SESSIONS); pktqueue_put_node(sos); log_new_bib(jool, bib); log_new_session(jool, session); return 0; trainwreck: pktqueue_put_node(sos); free_bib(bib); free_session(session); return -EINVAL; } static bool issue216_needed(struct mask_domain *masks, struct bib_session_tuple *old) { if (!masks) return false; return mask_domain_is_dynamic(masks) && !mask_domain_matches(masks, &old->bib->src4); } /** * This is a find and an add at the same time, for both @new->bib and * @new->session. * * If @new->bib needs to be added, initializes @slots->bib*. * If @new->session needs to be added, initializes @slots->session. * If @new->bib collides, you will find the collision in @old->bib. * If @new->session collides, you will find the collision in @old->session. * * @masks will be used to init @new->bib.src4 if applies. */ static int find_bib_session6(struct xlator *jool, struct bib_table *table, struct mask_domain *masks, struct bib_session_tuple *new, struct bib_session_tuple *old, struct slot_group *slots, struct bib_delete_list *bdl) { int error; /* * Please be careful around this function. All it wants to do is * find/add, but it is constrained by several requirements at the same * time: * * 1. If @new->bib->proto is ICMP (ie. 3-tuple), then * @new->session->dst4.l4 is invalid and needs to be patched. Though * it cannot be patched until we acquire a valid BIB entry. * (dst4.l4 is just fat that should not be used in 3-tuple * translation code, but a chunk of Jool assumes that * dst4.l4 == dst6.l4 in 5-tuples and dst4.l4 == src4.l4 in * 3-tuples.) * 2. @masks can be NULL! * If this happens, just assume that @old->bib->src4 and * (once acquired) @new->bib->src4 are both valid. * * See below for more stuff. */ old->bib = find_bibtree6_slot(table, new->bib, &slots->bib6); if (old->bib) { if (!issue216_needed(masks, old)) { if (new->bib->proto == L4PROTO_ICMP) new->session->dst4.l4 = old->bib->src4.l4; old->session = find_session_slot(old->bib, new->session, NULL, &slots->session); return 0; /* Typical happy path for existing sessions */ } /* * Issue #216: * If pool4 was empty (when @masks was generated) and the BIB * entry's IPv4 address is no longer a mask candidate, drop the * BIB entry and recompute it from scratch. * https://github.com/NICMx/Jool/issues/216 */ log_debug("Issue #216."); detach_bib(jool, table, old->bib); add_to_delete_list(bdl, &old->bib->hook4); /* * The detaching above might have involved a rebalance. * I believe that completely invalidates the bib6 slot. * Tough luck; we'll need another lookup. * At least this only happens on empty pool4s. (Low traffic.) */ old->bib = find_bibtree6_slot(table, new->bib, &slots->bib6); if (WARN(old->bib, "Found a BIB entry I just removed!")) return -EINVAL; } else { /* * No BIB nor session in the main database? Try the SO * sub-database. */ error = upgrade_pktqueue_session(jool, table, masks, new, old); if (!error) return 0; /* Unusual happy path for existing sessions */ } /* * In case you're tweaking this function: By this point, old->bib has to * be NULL and slots->bib6 has to be a valid potential tree slot. We're * now in create-new-BIB-and-session mode. * Time to worry about slots->bib4. * * (BTW: If old->bib is NULL, then old->session is also supposed to be * NULL.) */ if (masks) { error = find_available_mask(table, masks, new->bib, &slots->bib4); if (error) { if (WARN(error != -ENOENT, "Unknown error: %d", error)) return error; /* * TODO (issue175) the rate limit might be a bit of a * problem. * If both mark 0 and mark 1 are running out of * addresses, only one of them will be logged. * The problem is that remembering which marks have been * logged might get pretty ridiculous. * I don't think it's too bad because there will still * be at least one message every minute. * Also, it's better than what we had before. (Not * logging the offending mark.) * Might not be worth fixing since #175 is in the radar. */ log_warn_once("I'm running out of pool4 addresses for mark %u.", mask_domain_get_mark(masks)); return error; } if (new->bib->proto == L4PROTO_ICMP) new->session->dst4.l4 = new->bib->src4.l4; } else { /* * TODO (issue113) perhaps the sender's session shold be trusted * more. */ if (find_bibtree4_slot(table, new->bib, &slots->bib4)) return -EEXIST; } /* Ok, time to worry about slots->session now. */ treeslot_init(&slots->session, &new->bib->sessions, &new->session->tree_hook); old->session = NULL; return 0; /* Happy path for new sessions */ } /** * @db current BIB & session database. * @masks Should a BIB entry be created, its IPv4 address mask will be allocated * from one of these candidates. * @tuple6 The connection that you want to mask. * @dst4 translated version of @tuple.dst.addr6. * @result A copy of the resulting BIB entry and session from the database will * be placed here. (if not NULL) * * TODO (fine) return verdict */ int bib_add6(struct xlation *state, struct mask_domain *masks, struct tuple *tuple6, struct ipv4_transport_addr *dst4) { struct bib_table *table; struct bib_session_tuple new; struct bib_session_tuple old; struct slot_group slots; struct bib_delete_list bdl = { NULL }; int error; table = get_table(state->jool.nat64.bib, tuple6->l4_proto); if (!table) return -EINVAL; /* * We might have a lot to do. This function may index three RB-trees * so spinlock time is tight. * * (That's 3 potential lookups (2 guaranteed) and 3 potential * rebalances, though at least one of the trees is usually minuscule.) * * There's also the optional port allocation thing, which in the worst * case is an unfortunate full traversal of @masks. * * Let's start by allocating and initializing the objects as much as we * can, even if we end up not needing them. */ error = create_bib_session6(&new, tuple6, dst4, ESTABLISHED); if (error) return error; spin_lock_bh(&table->lock); /* Here goes... */ error = find_bib_session6(&state->jool, table, masks, &new, &old, &slots, &bdl); if (error) goto end; if (old.session) { /* Session already exists. */ handle_fate_timer(old.session, &table->est_timer); tstobs(state, old.session); goto end; } /* New connection; add the session. (And maybe the BIB entry as well) */ commit_add6(state, &old, &new, &slots, &table->est_timer); /* Fall through */ end: spin_unlock_bh(&table->lock); if (new.bib) free_bib(new.bib); if (new.session) free_session(new.session); commit_delete_list(&bdl); return error; } static void find_bib_session4(struct bib_table *table, struct tuple *tuple4, struct tabled_session *new, struct bib_session_tuple *old, bool *allow, struct tree_slot *slot) { old->bib = find_bib4(table, &tuple4->dst.addr4); old->session = old->bib ? find_session_slot(old->bib, new, allow, slot) : NULL; } /** * See @bib_add6. * * TODO (fine) return verdict */ int bib_add4(struct xlation *state, struct ipv6_transport_addr *dst6, struct tuple *tuple4) { struct bib_table *table; struct bib_session_tuple old; struct tabled_session *new; struct tree_slot session_slot; bool allow; int error = 0; table = get_table(state->jool.nat64.bib, tuple4->l4_proto); if (!table) return -EINVAL; new = create_session4(tuple4, dst6, ESTABLISHED); if (!new) return -ENOMEM; spin_lock_bh(&table->lock); find_bib_session4(table, tuple4, new, &old, &allow, &session_slot); if (old.session) { handle_fate_timer(old.session, &table->est_timer); tstobs(state, old.session); goto end; } if (!old.bib) { error = -ESRCH; goto end; } /* Address-Dependent Filtering. */ if (GLOBALS(state).drop_by_addr && !allow) { error = -EPERM; goto end; } /* Ok, no issues; add the session. */ commit_add4(state, &old, &new, &session_slot, &table->est_timer); /* Fall through */ end: spin_unlock_bh(&table->lock); if (new) free_session(new); return error; } /** * Note: This particular incarnation of fate_cb is not prepared to return * FATE_PROBE. */ verdict bib_add_tcp6(struct xlation *state, struct mask_domain *masks, struct ipv4_transport_addr *dst4, struct collision_cb *cb) { struct packet *pkt; struct bib_table *table; struct bib_session_tuple new; struct bib_session_tuple old; struct slot_group slots; struct bib_delete_list bdl = { NULL }; verdict result; pkt = &state->in; if (WARN(pkt->tuple.l4_proto != L4PROTO_TCP, "Incorrect l4 proto in TCP handler.")) return drop(state, JSTAT_UNKNOWN); if (create_bib_session6(&new, &pkt->tuple, dst4, V6_INIT)) return drop(state, JSTAT_ENOMEM); table = &state->jool.nat64.bib->tcp; spin_lock_bh(&table->lock); if (find_bib_session6(&state->jool, table, masks, &new, &old, &slots, &bdl)) { result = drop(state, JSTAT_UNKNOWN); goto end; } if (old.session) { /* All states except CLOSED. */ if (decide_fate(&state->jool, cb, table, old.session, NULL)) { tstobs(state, old.session); result = VERDICT_CONTINUE; } else { /* TODO (fine) shitty hack; we're assuming SO_EXISTS. */ result = drop(state, JSTAT_SO_EXISTS); } goto end; } /* CLOSED state beginning now. */ if (!pkt_tcp_hdr(pkt)->syn) { if (old.bib) { tbtobs(old.bib, &state->entries); result = VERDICT_CONTINUE; } else { log_debug("Packet is not SYN and lacks state."); result = drop(state, JSTAT_SYN6_EXPECTED); } goto end; } /* All exits up till now require @new.* to be deleted. */ commit_add6(state, &old, &new, &slots, &table->trans_timer); result = VERDICT_CONTINUE; /* Fall through */ end: spin_unlock_bh(&table->lock); if (new.bib) free_bib(new.bib); if (new.session) free_session(new.session); commit_delete_list(&bdl); return result; } /** * Note: This particular incarnation of fate_cb is not prepared to return * FATE_PROBE. */ verdict bib_add_tcp4(struct xlation *state, struct ipv6_transport_addr *dst6, struct collision_cb *cb) { struct packet *pkt; struct bib_table *table; struct tabled_session *new; struct bib_session_tuple old; struct tree_slot session_slot; verdict result; int error; pkt = &state->in; if (WARN(pkt->tuple.l4_proto != L4PROTO_TCP, "Incorrect l4 proto in TCP handler.")) return drop(state, JSTAT_UNKNOWN); new = create_session4(&pkt->tuple, dst6, V4_INIT); if (!new) return drop(state, JSTAT_ENOMEM); table = &state->jool.nat64.bib->tcp; spin_lock_bh(&table->lock); find_bib_session4(table, &pkt->tuple, new, &old, NULL, &session_slot); if (old.session) { /* All states except CLOSED. */ if (decide_fate(&state->jool, cb, table, old.session, NULL)) { tstobs(state, old.session); result = VERDICT_CONTINUE; } else { /* TODO (fine) shitty hack; we're assuming SO_EXISTS. */ result = drop(state, JSTAT_SO_EXISTS); } goto end; } /* CLOSED state beginning now. */ if (!pkt_tcp_hdr(pkt)->syn) { if (old.bib) { tbtobs(old.bib, &state->entries); result = VERDICT_CONTINUE; } else { log_debug("Packet is not SYN and lacks state."); result = drop(state, JSTAT_SYN4_EXPECTED); } goto end; } if (GLOBALS(state).drop_external_tcp) { log_debug("Externally initiated TCP connections are prohibited."); result = drop(state, JSTAT_V4_SYN); goto end; } if (!old.bib) { bool too_many; log_debug("Potential Simultaneous Open; storing type 1 packet."); too_many = table->pkt_count >= GLOBALS(state).max_stored_pkts; error = pktqueue_add(table->pkt_queue, pkt, dst6, too_many); switch (error) { case 0: result = stolen(state, JSTAT_TYPE1PKT); table->pkt_count++; goto end; case -EEXIST: log_debug("Simultaneous Open already exists."); result = drop(state, JSTAT_SO_EXISTS); goto end; case -ENOSPC: goto too_many_pkts; case -ENOMEM: result = drop(state, JSTAT_ENOMEM); goto end; } WARN(1, "pktqueue_add() threw unknown error %d", error); result = drop(state, JSTAT_UNKNOWN); goto end; } result = VERDICT_CONTINUE; if (GLOBALS(state).drop_by_addr) { if (table->pkt_count >= GLOBALS(state).max_stored_pkts) goto too_many_pkts; log_debug("Potential Simultaneous Open; storing type 2 packet."); new->stored = pkt_original_pkt(pkt)->skb; result = stolen(state, JSTAT_TYPE2PKT); table->pkt_count++; /* * Yes, fall through. No goto; we need to add this session. * Notice that if you need to cancel before the spin unlock then * you need to revert the packet storing above. */ } commit_add4(state, &old, &new, &session_slot, new->stored ? &table->syn4_timer : &table->trans_timer); /* Fall through */ end: spin_unlock_bh(&table->lock); if (new) free_session(new); return result; too_many_pkts: spin_unlock_bh(&table->lock); free_session(new); log_debug("Too many Simultaneous Opens."); /* Fall back to assume there's no SO. */ return drop_icmp(state, JSTAT_SO_FULL, ICMPERR_PORT_UNREACHABLE, 0); } int bib_find(struct bib *db, struct tuple *tuple, struct bib_session *result) { struct bib_entry tmp; int error; switch (tuple->l3_proto) { case L3PROTO_IPV6: error = bib_find6(db, tuple->l4_proto, &tuple->src.addr6, &tmp); break; case L3PROTO_IPV4: error = bib_find4(db, tuple->l4_proto, &tuple->dst.addr4, &tmp); break; default: WARN(true, "Unknown layer 3 protocol: %u", tuple->l3_proto); return -EINVAL; } if (error) return error; result->bib_set = true; result->session.src6 = tmp.ipv6; result->session.src4 = tmp.ipv4; result->session.proto = tmp.l4_proto; return 0; } int bib_add_session(struct xlator *jool, struct session_entry *session, struct collision_cb *cb) { struct bib_table *table; struct bib_session_tuple new; struct bib_session_tuple old; struct slot_group slots; struct bib_delete_list bdl = { NULL }; int error; table = get_table(jool->nat64.bib, session->proto); if (!table) return -EINVAL; error = create_bib_session(session, &new); if (error) return error; spin_lock_bh(&table->lock); error = find_bib_session6(jool, table, NULL, &new, &old, &slots, &bdl); if (error) goto end; if (old.session) { /* There's no packet; ignore the verdict. */ decide_fate(jool, cb, table, old.session, NULL); goto end; } error = commit_add(jool, table, &old, &new, &slots, session->timer_type); /* Fall through */ end: spin_unlock_bh(&table->lock); if (new.bib) free_bib(new.bib); if (new.session) free_session(new.session); commit_delete_list(&bdl); return error; } static void __clean(struct xlator *jool, struct expire_timer *expirer, struct bib_table *table, struct list_head *probes) { struct tabled_session *session; struct tabled_session *tmp; struct collision_cb cb; unsigned long timeout; cb.cb = expirer->decide_fate_cb; cb.arg = NULL; timeout = get_timeout(jool, expirer); list_for_each_entry_safe(session, tmp, &expirer->sessions, list_hook) { /* * "list" is sorted by expiration date, * so stop on the first unexpired session. */ if (time_before(jiffies, session->update_time + timeout)) break; decide_fate(jool, &cb, table, session, probes); } } static void clean_table(struct xlator *jool, struct bib_table *table) { LIST_HEAD(probes); LIST_HEAD(icmps); spin_lock_bh(&table->lock); __clean(jool, &table->est_timer, table, &probes); __clean(jool, &table->trans_timer, table, &probes); __clean(jool, &table->syn4_timer, table, &probes); if (table->pkt_queue) { table->pkt_count -= pktqueue_prepare_clean(table->pkt_queue, &icmps); } spin_unlock_bh(&table->lock); post_fate(jool->ns, &probes); pktqueue_clean(&icmps); } /** * Forgets or downgrades (from EST to TRANS) old sessions. */ void bib_clean(struct xlator *jool) { struct bib *db = jool->nat64.bib; clean_table(jool, &db->udp); clean_table(jool, &db->tcp); clean_table(jool, &db->icmp); } static struct rb_node *find_starting_point(struct bib_table *table, const struct ipv4_transport_addr *offset, bool include_offset) { struct tabled_bib *bib; struct rb_node **node; struct rb_node *parent; /* If there's no offset, start from the beginning. */ if (!offset) return rb_first(&table->tree4); /* If offset is found, start from offset or offset's next. */ rbtree_find_node(offset, &table->tree4, compare_src4, struct tabled_bib, hook4, parent, node); if (*node) return include_offset ? (*node) : rb_next(*node); if (!parent) return NULL; /* * If offset is not found, start from offset's next anyway. * (If offset was meant to exist, it probably timed out and died while * the caller wasn't holding the spinlock; it's nothing to worry about.) */ bib = rb_entry(parent, struct tabled_bib, hook4); return (compare_src4(bib, offset) < 0) ? rb_next(parent) : parent; } int bib_foreach(struct bib *db, l4_protocol proto, struct bib_foreach_func *func, const struct ipv4_transport_addr *offset) { struct bib_table *table; struct rb_node *node; struct tabled_bib *tabled; struct bib_entry bib; int error = 0; table = get_table(db, proto); if (!table) return -EINVAL; spin_lock_bh(&table->lock); node = find_starting_point(table, offset, false); for (; node && !error; node = rb_next(node)) { tabled = bib4_entry(node); tbtobe(tabled, &bib); error = func->cb(&bib, tabled->is_static, func->arg); } spin_unlock_bh(&table->lock); return error; } static struct rb_node *slot_next(struct tree_slot *slot) { if (!slot->parent) return NULL; if (&slot->parent->rb_left == slot->rb_link) return slot->parent; /* else if (slot->parent->rb_right == &slot->rb_link) */ return rb_next(slot->parent); } static void next_bib(struct rb_node *next, struct bib_session_tuple *pos) { pos->bib = bib4_entry(next); } static void next_session(struct rb_node *next, struct bib_session_tuple *pos) { pos->session = node2session(next); if (!pos->session) { /* Tree was empty or the previous was the last session. */ /* Cascade "next" to the supertree. */ next_bib(rb_next(&pos->bib->hook4), pos); } } /** * Finds the BIB entry and/or session where a foreach of the sessions should * start with, based on @offset. * * If a session that matches @offset is found, will initialize both @pos->bib * and @pos->session to point to this session. * If @pos->bib is defined but @pos->session is not, the foreach should start * from @pos->bib's first session. * If neither @pos->bib nor @pos->session are defined, iteration ended. * (offset lies after the last session.) * * If @offset is not found, it always tries to return the session that would * follow one that would match perfectly. This is because sessions expiring * during ongoing fragmented foreaches are not considered a problem. */ static void find_session_offset(struct bib_table *table, struct session_foreach_offset *offset, struct bib_session_tuple *pos) { struct tabled_bib tmp_bib; struct tabled_session tmp_session; struct tree_slot slot; memset(pos, 0, sizeof(*pos)); tmp_bib.src4 = offset->offset.src; pos->bib = find_bibtree4_slot(table, &tmp_bib, &slot); if (!pos->bib) { next_bib(slot_next(&slot), pos); return; } tmp_session.dst4 = offset->offset.dst; pos->session = find_session_slot(pos->bib, &tmp_session, NULL, &slot); if (!pos->session) { next_session(slot_next(&slot), pos); return; } if (!offset->include_offset) next_session(rb_next(&pos->session->tree_hook), pos); } #define foreach_bib(table, node) \ for (node = bib4_entry(rb_first(&(table)->tree4)); \ node; \ node = bib4_entry(rb_next(&node->hook4))) #define foreach_session(tree, node) \ for (node = node2session(rb_first(tree)); \ node; \ node = node2session(rb_next(&node->tree_hook))) int bib_foreach_session(struct xlator *jool, l4_protocol proto, struct session_foreach_func *func, struct session_foreach_offset *offset) { struct bib_table *table; struct bib_session_tuple pos; struct session_entry tmp; int error = 0; table = get_table(jool->nat64.bib, proto); if (!table) return -EINVAL; spin_lock_bh(&table->lock); if (offset) { find_session_offset(table, offset, &pos); /* if pos.session != NULL, then pos.bib != NULL. */ if (pos.session) goto goto_session; if (pos.bib) goto goto_bib; goto end; } foreach_bib(table, pos.bib) { goto_bib: foreach_session(&pos.bib->sessions, pos.session) { goto_session: tstose(jool, pos.session, &tmp); error = func->cb(&tmp, func->arg); if (error) goto end; } } end: spin_unlock_bh(&table->lock); return error; } #undef foreach_session #undef foreach_bib int bib_find6(struct bib *db, l4_protocol proto, struct ipv6_transport_addr *addr, struct bib_entry *result) { struct bib_table *table; struct tabled_bib *bib; table = get_table(db, proto); if (!table) return -EINVAL; spin_lock_bh(&table->lock); bib = find_bib6(table, addr); if (bib) tbtobe(bib, result); spin_unlock_bh(&table->lock); return bib ? 0 : -ESRCH; } int bib_find4(struct bib *db, l4_protocol proto, struct ipv4_transport_addr *addr, struct bib_entry *result) { struct bib_table *table; struct tabled_bib *bib; table = get_table(db, proto); if (!table) return -EINVAL; spin_lock_bh(&table->lock); bib = find_bib4(table, addr); if (bib) tbtobe(bib, result); spin_unlock_bh(&table->lock); return bib ? 0 : -ESRCH; } static void bib2tabled(struct bib_entry *bib, struct tabled_bib *tabled) { tabled->src6 = bib->ipv6; tabled->src4 = bib->ipv4; tabled->proto = bib->l4_proto; tabled->is_static = true; tabled->sessions = RB_ROOT; } static int __bib_add_static(struct xlator *jool, struct bib_entry *new, struct bib_entry *old) { struct bib_table *table; struct tabled_bib *bib; struct tabled_bib *collision; struct tree_slot slot6; struct tree_slot slot4; table = get_table(jool->nat64.bib, new->l4_proto); if (!table) return -EINVAL; bib = alloc_bib(GFP_ATOMIC); if (!bib) return -ENOMEM; bib2tabled(new, bib); spin_lock_bh(&table->lock); collision = find_bibtree6_slot(table, bib, &slot6); if (collision) { if (taddr4_equals(&bib->src4, &collision->src4)) goto upgrade; goto eexist; } collision = find_bibtree4_slot(table, bib, &slot4); if (collision) goto eexist; treeslot_commit(&slot6); treeslot_commit(&slot4); jstat_inc(jool->stats, JSTAT_BIB_ENTRIES); /* * Since the BIB entry is now available, and assuming ADF is disabled, * it would make sense to translate the relevant type 1 stored packets. * That's bound to be a lot of messy code though, and the v4 client is * going to retry anyway, so let's just forget the packets instead. */ if (new->l4_proto == L4PROTO_TCP) pktqueue_rm(jool->nat64.bib->tcp.pkt_queue, &new->ipv4); spin_unlock_bh(&table->lock); return 0; upgrade: collision->is_static = true; spin_unlock_bh(&table->lock); free_bib(bib); return 0; eexist: tbtobe(collision, old); spin_unlock_bh(&table->lock); free_bib(bib); return -EEXIST; } /* Noisy version. */ int bib_add_static(struct xlator *jool, struct bib_entry *new) { struct bib_entry old; int error; error = __bib_add_static(jool, new, &old); switch (error) { case 0: break; case -EEXIST: log_err("Entry %pI4#%u|%pI6c#%u collides with %pI4#%u|%pI6c#%u.", &new->ipv4.l3, new->ipv4.l4, &new->ipv6.l3, new->ipv6.l4, &old.ipv4.l3, old.ipv4.l4, &old.ipv6.l3, old.ipv6.l4); break; default: log_err("Unknown error code: %d", error); break; } return error; } int bib_rm(struct xlator *jool, struct bib_entry *entry) { struct bib_table *table; struct tabled_bib key; struct tabled_bib *bib; int error = -ESRCH; table = get_table(jool->nat64.bib, entry->l4_proto); if (!table) return -EINVAL; bib2tabled(entry, &key); spin_lock_bh(&table->lock); bib = find_bib6(table, &key.src6); if (bib && taddr4_equals(&key.src4, &bib->src4)) { detach_bib(jool, table, bib); error = 0; } spin_unlock_bh(&table->lock); if (!error) release_bib_entry(&bib->hook4, NULL); return error; } void bib_rm_range(struct xlator *jool, l4_protocol proto, struct ipv4_range *range) { struct bib_table *table; struct ipv4_transport_addr offset; struct rb_node *node; struct rb_node *next; struct tabled_bib *bib; struct bib_delete_list delete_list = { NULL }; table = get_table(jool->nat64.bib, proto); if (!table) return; offset.l3 = range->prefix.addr; offset.l4 = range->ports.min; spin_lock_bh(&table->lock); node = find_starting_point(table, &offset, true); for (; node; node = next) { next = rb_next(node); bib = bib4_entry(node); if (!prefix4_contains(&range->prefix, &bib->src4.l3)) break; if (port_range_contains(&range->ports, bib->src4.l4)) { detach_bib(jool, table, bib); add_to_delete_list(&delete_list, node); } } spin_unlock_bh(&table->lock); commit_delete_list(&delete_list); } static void flush_table(struct xlator *jool, struct bib_table *table) { struct rb_node *node; struct rb_node *next; struct bib_delete_list delete_list = { NULL }; spin_lock_bh(&table->lock); for (node = rb_first(&table->tree4); node; node = next) { next = rb_next(node); detach_bib(jool, table, bib4_entry(node)); add_to_delete_list(&delete_list, node); } spin_unlock_bh(&table->lock); commit_delete_list(&delete_list); } void bib_flush(struct xlator *jool) { struct bib *db = jool->nat64.bib; flush_table(jool, &db->tcp); flush_table(jool, &db->udp); flush_table(jool, &db->icmp); } static void print_tabs(int tabs) { int i; for (i = 0; i < tabs; i++) pr_cont(" "); } static void print_session(struct rb_node *node, int tabs, char *prefix) { struct tabled_session *session; if (!node) return; pr_info("[Ssn]"); session = node2session(node); print_tabs(tabs); pr_cont("[%s] %pI4#%u %pI6c#%u\n", prefix, &session->dst4.l3, session->dst4.l4, &session->dst6.l3, session->dst6.l4); print_session(node->rb_left, tabs + 1, "L"); /* "Left" */ print_session(node->rb_right, tabs + 1, "R"); /* "Right" */ } static void print_bib(struct rb_node *node, int tabs) { struct tabled_bib *bib; if (!node) return; pr_info("[BIB]"); bib = bib4_entry(node); print_tabs(tabs); pr_cont("%pI4#%u %pI6c#%u\n", &bib->src4.l3, bib->src4.l4, &bib->src6.l3, bib->src6.l4); print_session(bib->sessions.rb_node, tabs + 1, "T"); /* "Tree" */ print_bib(node->rb_left, tabs + 1); print_bib(node->rb_right, tabs + 1); } void bib_print(struct bib *db) { log_debug("TCP:"); print_bib(db->tcp.tree4.rb_node, 1); log_debug("UDP:"); print_bib(db->udp.tree4.rb_node, 1); log_debug("ICMP:"); print_bib(db->icmp.tree4.rb_node, 1); } jool-4.0.7/src/mod/common/db/bib/db.h0000664000175000017500000000744413576247347014160 00000000000000#ifndef SRC_MOD_NAT64_BIB_DB_H_ #define SRC_MOD_NAT64_BIB_DB_H_ /** * @file * The BIB and session tables. * Formally defined in RFC 6146 section 3.2. */ #include "common/config.h" #include "mod/common/packet.h" #include "mod/common/translation_state.h" #include "mod/common/db/pool4/db.h" #include "mod/common/db/bib/entry.h" struct bib; enum session_fate { /** * Assign the established timer to the session. * (An "established" timer is one where it is assumed the session is * not going to die soon.) */ FATE_TIMER_EST, /** * Assign the transitory timer to the session. * (A "transitory" timer is one where it is assumed the session is * going to die soon.) */ FATE_TIMER_TRANS, /** * The session expired; it has to be removed from the DB right away. */ FATE_RM, /** * No changes. */ FATE_PRESERVE, /** * Send a probe packet, then reset timer into transitory mode. */ FATE_PROBE, /** * Drop the packet (the new packet, not the stored one), * preserve the session (stored packet included). */ FATE_DROP, /** * Like FATE_TIMER_EST or FATE_TIMER_TRANS, except the session's * lifetime must not be reset. * It's called "slow" because this means the database cannot just add * the session to the end of the sorted (by expiration date) list and so * the proper slot has to be found in a sequential search. */ FATE_TIMER_SLOW, }; int bib_setup(void); void bib_teardown(void); struct bib *bib_alloc(void); void bib_get(struct bib *db); void bib_put(struct bib *db); typedef enum session_fate (*fate_cb)(struct session_entry *, void *); struct collision_cb { /** * Note: This callback can edit the session's state, timer_type, * update_time, and also turn off has_stored. * Any other changes will be rolled back. */ fate_cb cb; void *arg; }; /* These are used by Filtering. */ int bib_add6(struct xlation *state, struct mask_domain *masks, struct tuple *tuple6, struct ipv4_transport_addr *dst4); int bib_add4(struct xlation *state, struct ipv6_transport_addr *dst6, struct tuple *tuple4); verdict bib_add_tcp6(struct xlation *xstate, struct mask_domain *masks, struct ipv4_transport_addr *dst4, struct collision_cb *cb); verdict bib_add_tcp4(struct xlation *xstate, struct ipv6_transport_addr *dst6, struct collision_cb *cb); /* These are used by other kernel submodules. */ int bib_find(struct bib *db, struct tuple *tuple, struct bib_session *result); int bib_add_session(struct xlator *jool, struct session_entry *new, struct collision_cb *cb); void bib_clean(struct xlator *jool); /* These are used by userspace request handling. */ struct bib_foreach_func { int (*cb)(struct bib_entry const *, bool, void *); void *arg; }; struct session_foreach_func { int (*cb)(struct session_entry const *, void *); void *arg; }; struct session_foreach_offset { struct taddr4_tuple offset; bool include_offset; }; int bib_foreach(struct bib *db, l4_protocol proto, struct bib_foreach_func *func, const struct ipv4_transport_addr *offset); int bib_foreach_session(struct xlator *jool, l4_protocol proto, struct session_foreach_func *collision_cb, struct session_foreach_offset *offset); int bib_find6(struct bib *db, l4_protocol proto, struct ipv6_transport_addr *addr, struct bib_entry *result); int bib_find4(struct bib *db, l4_protocol proto, struct ipv4_transport_addr *addr, struct bib_entry *result); int bib_add_static(struct xlator *jool, struct bib_entry *new); int bib_rm(struct xlator *jool, struct bib_entry *entry); void bib_rm_range(struct xlator *jool, l4_protocol proto, struct ipv4_range *range); void bib_flush(struct xlator *jool); void bib_print(struct bib *db); /* The user of this module has to implement this. */ enum session_fate tcp_est_expire_cb(struct session_entry *new, void *arg); #endif /* SRC_MOD_NAT64_BIB_DB_H_ */ jool-4.0.7/src/mod/common/db/config.h0000664000175000017500000000034213576247347014272 00000000000000#ifndef SRC_MOD_COMMON_CONFIG_H_ #define SRC_MOD_COMMON_CONFIG_H_ #include "common/config.h" int globals_init(struct globals *config, xlator_type type, struct config_prefix6 *pool6); #endif /* SRC_MOD_COMMON_CONFIG_H_ */ jool-4.0.7/src/mod/common/db/eam.h0000664000175000017500000000253213576247347013572 00000000000000#ifndef SRC_MOD_SIIT_EAM_H_ #define SRC_MOD_SIIT_EAM_H_ #include #include #include "common/config.h" #include "common/types.h" #include "mod/common/rtrie.h" struct eam_table; struct eam_table *eamt_alloc(void); void eamt_get(struct eam_table *eamt); void eamt_put(struct eam_table *eamt); /* Safe-to-use-during-packet-translation functions */ int eamt_xlat_4to6(struct eam_table *eamt, struct in_addr *addr4, struct result_addrxlat46 *result); int eamt_xlat_6to4(struct eam_table *eamt, struct in6_addr *addr6, struct result_addrxlat64 *result); bool eamt_contains6(struct eam_table *eamt, struct in6_addr *addr); bool eamt_contains4(struct eam_table *eamt, __be32 addr); bool eamt_is_empty(struct eam_table *eamt); /* Do-not-use-when-you-can't-sleep-functions */ int eamt_add(struct eam_table *eamt, struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4, bool force); int eamt_rm(struct eam_table *eamt, struct ipv6_prefix *prefix6, struct ipv4_prefix *prefix4); void eamt_flush(struct eam_table *eamt); int eamt_count(struct eam_table *eamt, __u64 *count); typedef int (*eamt_foreach_cb)(struct eamt_entry const *, void *); int eamt_foreach(struct eam_table *eamt, eamt_foreach_cb cb, void *arg, struct ipv4_prefix *offset); void eamt_print_refcount(struct eam_table *eamt); #endif /* SRC_MOD_SIIT_EAM_H_ */ jool-4.0.7/src/mod/common/db/blacklist4.c0000664000175000017500000000444013576247347015057 00000000000000#include "blacklist4.h" #include #include #include #include #include "mod/common/address.h" #include "mod/common/xlator.h" #include "mod/common/rcu.h" /* TODO (fine) fuse this module and pool.c */ struct addr4_pool *blacklist4_alloc(void) { return pool_alloc(); } void blacklist4_get(struct addr4_pool *pool) { pool_get(pool); } void blacklist4_put(struct addr4_pool *pool) { pool_put(pool); } int blacklist4_add(struct addr4_pool *pool, struct ipv4_prefix *prefix) { return pool_add(pool, prefix, false); } int blacklist4_rm(struct addr4_pool *pool, struct ipv4_prefix *prefix) { return pool_rm(pool, prefix); } int blacklist4_flush(struct addr4_pool *pool) { return pool_flush(pool); } /** * Is @addr *NOT* translatable, according to the interfaces? * * The name comes from the fact that interface addresses are usually * non-translatable (ie. the traffic is meant for the translator box). * * Recognizable directed broadcast is also not translatable. */ bool interface_contains(struct net *ns, struct in_addr *addr) { struct net_device *dev; struct in_device *in_dev; struct in_ifaddr *ifa; struct in_addr ifaddr; rcu_read_lock(); for_each_netdev_rcu(ns, dev) { in_dev = rcu_dereference(dev->ip_ptr); ifa = in_dev->ifa_list; while (ifa) { ifaddr.s_addr = ifa->ifa_local; if (ipv4_addr_cmp(&ifaddr, addr) == 0) { /* https://github.com/NICMx/Jool/issues/223 */ if (ifa->ifa_prefixlen == 32) goto do_translate; else goto dont_translate; } /* RFC3021: /31 (and /32) networks lack broadcast. */ if (ifa->ifa_prefixlen < 31) { ifaddr.s_addr = ifa->ifa_local | ~ifa->ifa_mask; if (ipv4_addr_cmp(&ifaddr, addr) == 0) goto dont_translate; } ifa = ifa->ifa_next; } } /* Fall through */ do_translate: rcu_read_unlock(); return false; dont_translate: rcu_read_unlock(); return true; } bool blacklist4_contains(struct addr4_pool *pool, struct in_addr *addr) { return pool_contains(pool, addr); } int blacklist4_foreach(struct addr4_pool *pool, int (*func)(struct ipv4_prefix *, void *), void *arg, struct ipv4_prefix *offset) { return pool_foreach(pool, func, arg, offset); } bool blacklist4_is_empty(struct addr4_pool *pool) { return pool_is_empty(pool); } jool-4.0.7/src/mod/common/db/rbtree.c0000664000175000017500000000317013576247347014305 00000000000000#include "rbtree.h" #include void treeslot_init(struct tree_slot *slot, struct rb_root *root, struct rb_node *entry) { slot->tree = root; slot->entry = entry; slot->parent = NULL; slot->rb_link = &root->rb_node; } void treeslot_commit(struct tree_slot *slot) { rb_link_node(slot->entry, slot->parent, slot->rb_link); rb_insert_color(slot->entry, slot->tree); } /* * Safe postorder traversal. * * I know the kernel has something called rbtree_postorder_for_each_entry_safe. * It's just not available until Linux 3.12. */ void rbtree_foreach(struct rb_root *root, void (*cb)(struct rb_node *, void *), void *arg) { struct rb_node *parent, *node; parent = NULL; node = root->rb_node; while (node) { /* * Keep going down as much as possible. * Left is always preferred. */ while (node->rb_left || node->rb_right) { parent = node; node = node->rb_left ? : node->rb_right; } /* We found a childless node; callback. */ cb(node, arg); /* * Keep going up, callbacking nodes until we find an unvisited * sibling subtree. */ do { if (!parent) return; if (node == parent->rb_left) { if (parent->rb_right) { node = parent->rb_right; break; } cb(parent, arg); } else if (node == parent->rb_right) { cb(parent, arg); } else { WARN(true, "Bug: Parent got messed up during traversal"); return; } node = parent; parent = rb_parent(node); } while (true); } } void rbtree_clear(struct rb_root *root, void (*destructor)(struct rb_node *, void *), void *arg) { rbtree_foreach(root, destructor, arg); root->rb_node = NULL; } jool-4.0.7/src/mod/common/db/pool.c0000664000175000017500000001133213576247347013772 00000000000000#include "pool.h" #include #include #include #include "common/types.h" #include "mod/common/address.h" #include "mod/common/log.h" #include "mod/common/rcu.h" #include "mod/common/tags.h" #include "mod/common/wkmalloc.h" struct pool_entry { struct ipv4_prefix prefix; struct list_head list_hook; }; struct addr4_pool { struct list_head __rcu *list; struct kref refcounter; }; /* I can't have per-pool mutexes because of the replace function. */ static DEFINE_MUTEX(lock); RCUTAG_FREE static struct pool_entry *get_entry(struct list_head *node) { return list_entry(node, struct pool_entry, list_hook); } /** * Assumes it has exclusive access to @list. */ RCUTAG_FREE static void __destroy(struct list_head *list) { struct list_head *node; struct list_head *tmp; list_for_each_safe(node, tmp, list) { list_del(node); wkfree(struct pool_entry, get_entry(node)); } __wkfree("IPv4 address pool list", list); } RCUTAG_USR /* Only because of GFP_KERNEL. Can be easily upgraded to FREE. */ static struct list_head *alloc_list(void) { struct list_head *list; list = __wkmalloc("IPv4 address pool list", sizeof(*list), GFP_KERNEL); if (!list) return NULL; INIT_LIST_HEAD(list); return list; } RCUTAG_USR struct addr4_pool *pool_alloc(void) { struct addr4_pool *result; struct list_head *list; result = wkmalloc(struct addr4_pool, GFP_KERNEL); if (!result) return NULL; list = alloc_list(); if (!list) { wkfree(struct addr4_pool, result); return NULL; } RCU_INIT_POINTER(result->list, list); kref_init(&result->refcounter); return result; } void pool_get(struct addr4_pool *pool) { kref_get(&pool->refcounter); } RCUTAG_USR static void pool_release(struct kref *refcounter) { struct addr4_pool *pool; pool = container_of(refcounter, struct addr4_pool, refcounter); __destroy(rcu_dereference_raw(pool->list)); wkfree(struct addr4_pool, pool); } void pool_put(struct addr4_pool *pool) { kref_put(&pool->refcounter, pool_release); } RCUTAG_USR int pool_add(struct addr4_pool *pool, struct ipv4_prefix *prefix, bool force) { struct list_head *list; struct pool_entry *entry; int error; error = prefix4_validate(prefix); if (error) return error; error = prefix4_validate_scope(prefix, force); if (error) return error; mutex_lock(&lock); entry = wkmalloc(struct pool_entry, GFP_KERNEL); if (!entry) { error = -ENOMEM; goto end; } entry->prefix = *prefix; list = rcu_dereference_protected(pool->list, lockdep_is_held(&lock)); list_add_tail_rcu(&entry->list_hook, list); end: mutex_unlock(&lock); return error; } RCUTAG_USR int pool_rm(struct addr4_pool *pool, struct ipv4_prefix *prefix) { struct list_head *list; struct list_head *node; struct pool_entry *entry; mutex_lock(&lock); list = rcu_dereference_protected(pool->list, lockdep_is_held(&lock)); list_for_each(node, list) { entry = get_entry(node); if (prefix4_equals(prefix, &entry->prefix)) { list_del_rcu(&entry->list_hook); mutex_unlock(&lock); synchronize_rcu_bh(); wkfree(struct pool_entry, entry); return 0; } } mutex_unlock(&lock); log_err("Could not find the requested entry in the IPv4 pool."); return -ESRCH; } RCUTAG_USR int pool_flush(struct addr4_pool *pool) { struct list_head *old; struct list_head *new; new = alloc_list(); if (!new) return -ENOMEM; mutex_lock(&lock); old = rcu_dereference_protected(pool->list, lockdep_is_held(&lock)); rcu_assign_pointer(pool->list, new); mutex_unlock(&lock); synchronize_rcu_bh(); __destroy(old); return 0; } RCUTAG_PKT bool pool_contains(struct addr4_pool *pool, struct in_addr *addr) { struct list_head *list; struct list_head *node; struct pool_entry *entry; rcu_read_lock_bh(); list = rcu_dereference_bh(pool->list); list_for_each_rcu_bh(node, list) { entry = get_entry(node); if (prefix4_contains(&entry->prefix, addr)) { rcu_read_unlock_bh(); return true; } } rcu_read_unlock_bh(); return false; } RCUTAG_PKT int pool_foreach(struct addr4_pool *pool, int (*func)(struct ipv4_prefix *, void *), void *arg, struct ipv4_prefix *offset) { struct list_head *list; struct list_head *node; struct pool_entry *entry; int error = 0; rcu_read_lock_bh(); list = rcu_dereference_bh(pool->list); list_for_each_rcu_bh(node, list) { entry = get_entry(node); if (!offset) { error = func(&entry->prefix, arg); if (error) break; } else if (prefix4_equals(offset, &entry->prefix)) { offset = NULL; } } rcu_read_unlock_bh(); return offset ? -ESRCH : error; } RCUTAG_PKT bool pool_is_empty(struct addr4_pool *pool) { struct list_head *list; bool result; rcu_read_lock_bh(); list = rcu_dereference_bh(pool->list); result = list_empty(list); rcu_read_unlock_bh(); return result; } jool-4.0.7/src/mod/common/packet.h0000664000175000017500000004530713576247347013721 00000000000000#ifndef SRC_MOD_COMMON_PACKET_H_ #define SRC_MOD_COMMON_PACKET_H_ /** * @file * Random packet-related functions. * * TODO (doc) though this comment is not wrong, it's probably not as relevant as * it used to be. Thanks to the 3.6 refactors, Jool doesn't often care (if at * all) about different types of packets anymore. * * You might want to be aware of the different types of packets the kernel can * throw at Jool; see below. * * (Note that when I say "fragment" I mean "IP fragment". "Page fragments" are * something else altogether and are somewhat transparent to Jool. All the * variations below can be paged, except for subsequent packets already * represented as pages.) * * 1. A "real full packet" is a packet that is not fragmented. It is a single * skb with fragment offset = 0 and MF = 0. * 2. A "fake full packet" is a packet which is fragmented but the kernel API * wants us to believe otherwise. * These are "assembled" skbs in that the skb points to the first fragment * and the remaining fragments are queued in skb_shinfo(skb)->frag_list. * Though many kernel functions want us to believe the skb is a real full * packet, and ideally we would follow suit, doing surgery on individual * fragments is sometimes necessary evil for PMTU reasons. * * (A "full packet" is either a real full packet or a fake full packet.) * * 3. A "fragmented packet" is a normal fragmented packet that hasn't suffered * defrag alterations. * In other words, fragment offset > 0 and/or MF == true, shinfo->frag_list * isn't populated and the skb is not queued in any other packet's frag_list. * These are fragments but are separated from their ilk during translation as * you would expect from a stateless forwarding machine. * 4. An "internal packet" is a packet wrapped as payload in an ICMP error. * These are set up and used by the RFC7915 submodule. * Internal packets can be truncated! Header lengths might contradict the * sizes from the skb fields. Jool in general should *rarely* rely on header * lengths. * I repeat: Because of internal packets, JOOL IN GENERAL SHOULD RARELY RELY * ON HEADER LENGTHS! * 5. A "subsequent packet" is a fragment that has been queued in some fake full * packet's frag_list. These packets are special in that they have stripped * (deleted) l3 headers for no apparent reason. * As I understand it, while forwarding, the kernel regenerates "subsequent * headers" from scratch so any special differences between the original * headers are lost. Ever since the atomic fragment hack was removed from the * xlat standards this is no longer harmful so we don't mind it anymore. * So yeah, do not translate subsequent headers. They do not exist. * Another thing worth mentioning is that some kernels are even more insane * in that they queue subsequent fragments in ->frags instead of ->frag_list. * This is, in fact, also not entirely harmful because we can simply transfer * pages as they are and the kernel should automatically turn them into * fragments if they won't fit through the MTU. I don't think this is as * deterministic as it should be, since the kernel might not be aware of the * path MTU (and therefore linearize fragment pages), but there is nothing * else we can do because there is nothing that will tell us whether a * ->frags member is a fragment or a page. * * For the most part, full/fragmented/internal packets can be handled similarly. * Subsequent packets, freaks of nature as they are, are thankfully often * transparent to us. * * Also consider the following while reading this documentation: * * - "data payload area" refers to the bytes that lie in an skb between * skb->head and skb->tail, excluding headers. * - "paged area" refers to the bytes that the skb stores in * skb_shinfo(skb)->frags. (Though sometimes these represent IP fragments, * they *never* feature headers.) * - "frag_list area" refers to the bytes that the skb stores in * skb_shinfo(skb)->frag_list, and *also* the bytes that these fragments store * in their own paged area. Though these are valid skbs, the kernel wants us * to believe that they don't have headers, and Jool should not attempt to * read them. * (The fragments in theory should never contain sub-frag_lists, but maybe * Jool should consider this now that I think about it.) */ #include #include #include #include #include #include "mod/common/types.h" /** Returns a hack-free version of the 'Traffic class' field from @hdr. */ static inline __u8 get_traffic_class(const struct ipv6hdr *hdr) { __u8 upper_bits = hdr->priority; __u8 lower_bits = hdr->flow_lbl[0] >> 4; return (upper_bits << 4) | lower_bits; } /** * Returns a big endian (but otherwise hack-free) version of the 'Flow label' * field from @hdr. */ static inline __be32 get_flow_label(const struct ipv6hdr *hdr) { return (*(__be32 *) hdr) & IPV6_FLOWLABEL_MASK; } /** Returns IP_DF if the DF flag from @hdr is set, 0 otherwise. */ static inline __u16 is_df_set(const struct iphdr *hdr) { return be16_to_cpu(hdr->frag_off) & IP_DF; } /** Returns IP6_MF if the MF flag from @hdr is set, 0 otherwise. */ static inline __u16 is_mf_set_ipv6(const struct frag_hdr *hdr) { return be16_to_cpu(hdr->frag_off) & IP6_MF; } /** Returns IP_MF if the MF flag from @hdr is set, 0 otherwise. */ static inline __u16 is_mf_set_ipv4(const struct iphdr *hdr) { return be16_to_cpu(hdr->frag_off) & IP_MF; } /** Returns a hack-free version of the 'Fragment offset' field from @hdr. */ static inline __u16 get_fragment_offset_ipv6(const struct frag_hdr *hdr) { return be16_to_cpu(hdr->frag_off) & 0xFFF8U; } /** Returns a hack-free version of the 'Fragment offset' field from @hdr. */ static inline __u16 get_fragment_offset_ipv4(const struct iphdr *hdr) { __u16 frag_off = be16_to_cpu(hdr->frag_off); /* 3 bit shifts to the left == multiplication by 8. */ return (frag_off & IP_OFFSET) << 3; } /** * Pretends @skb's IPv6 header has a "total length" field and returns its value. * This function exists because turning "payload length" into "total length" by * hand takes almost a full line by itself, which forces us to break lines. */ static inline unsigned int get_tot_len_ipv6(const struct sk_buff *skb) { return sizeof(struct ipv6hdr) + be16_to_cpu(ipv6_hdr(skb)->payload_len); } /** * @{ * Does @hdr belong to a "first fragment"? * A non-fragmented packet is also considered a first fragment. */ static inline bool is_first_frag4(const struct iphdr *hdr) { return get_fragment_offset_ipv4(hdr) == 0; } static inline bool is_first_frag6(const struct frag_hdr *hdr) { return hdr ? (get_fragment_offset_ipv6(hdr) == 0) : true; } /** * @} */ /** * @{ * Is @hdr's packet a fragment? */ static inline bool is_fragmented_ipv4(const struct iphdr *hdr) { return (get_fragment_offset_ipv4(hdr) != 0) || is_mf_set_ipv4(hdr); } static inline bool is_fragmented_ipv6(const struct frag_hdr *hdr) { if (!hdr) return false; return (get_fragment_offset_ipv6(hdr) != 0) || is_mf_set_ipv6(hdr); } /** * @} */ /** * frag_hdr.frag_off is actually a combination of the 'More fragments' flag and * the 'Fragment offset' field. This function is a one-liner for creating a * settable frag_off. * Note that fragment offset is measured in units of eight-byte blocks. That * means that you want @frag_offset to be a multiple of 8 if you want your * fragmentation to work properly. */ static inline __be16 build_ipv6_frag_off_field(__u16 frag_offset, __u16 mf) { __u16 result = (frag_offset & 0xFFF8U) | (mf ? 1U : 0U); return cpu_to_be16(result); } /** * iphdr.frag_off is actually a combination of the DF flag, the MF flag and the * 'Fragment offset' field. This function is a one-liner for creating a settable * frag_off. * Note that fragment offset is measured in units of eight-byte blocks. That * means that you want @frag_offset to be a multiple of 8 if you want your * fragmentation to work properly. */ static inline __be16 build_ipv4_frag_off_field(const bool df, const __u16 mf, const __u16 frag_offset) { __u16 result = (df ? (1U << 14) : 0) | (mf ? (1U << 13) : 0) /* 3 bit shifts to the right == division by 8. */ | (frag_offset >> 3); return cpu_to_be16(result); } /** * Returns the size in bytes of @hdr, including options. * skbless variant of tcp_hdrlen(). */ static inline unsigned int tcp_hdr_len(const struct tcphdr *hdr) { return hdr->doff << 2; } #define SNAPSHOT_FRAGS_SIZE 5 struct pkt_snapshot { unsigned int len; unsigned int data_len; unsigned char nr_frags; unsigned int frags[SNAPSHOT_FRAGS_SIZE]; }; /** * We need to store packet metadata, so we encapsulate sk_buffs into this. * * Do **not** use control buffers (skb->cb) for this purpose. The kernel is * known to misbehave and store information there which we should not override. * * By the way: Jool never creates `struct packet`s out of subsequent packets * alone. If you're holding a `struct packet`, you can be sure the contained skb * is one of the other variations. */ struct packet { struct sk_buff *skb; struct tuple tuple; /** * Protocol of the layer-3 header of the packet. * Yes, skb->proto has the same superpowers, but it's a little * unreliable (it's not set in the Local Out chain). * Also this spares me a switch in pkt_l3_proto() :p. */ enum l3_protocol l3_proto; /** * Protocol of the layer-4 header of the packet. To the best of my * knowledge, the kernel also uses skb->proto for this, but only on * layer-4 code (of which Jool isn't). * Skbs otherwise do not store a layer-4 identifier. */ enum l4_protocol l4_proto; /** * Is this a subpacket, contained in an ICMP error? * (Used by the RFC7915 code.) */ bool is_inner; /** * Is the packet going to hairpin? * Intrinsic EAM hairpinning only. RFC6052 hairpin and Simple EAM * hairpin don't need any flags. */ bool is_hairpin; /** * Quick pointer to skb's fragment header, if any. */ struct frag_hdr *hdr_frag; /** * Pointer to the packet's payload. * Because skbs only store pointers to headers. * * Sometimes the kernel seems to use skb->data for this. It would be * troublesome if we did the same, however, since functions such as * icmp_send() fail early when skb->data is after the layer-3 header. * * Note, even after the packet is validated, the payload can be paged * (unlike headers). Do not access the data pointed by this field * carelessly. */ void *payload; /** * If this is an incoming packet (as in, incoming to Jool), this points * to the same packet (pkt->original_pkt = pkt). Otherwise (which * includes hairpin packets), this points to the original (incoming) * packet. * Used by the pkt queue. */ struct packet *original_pkt; struct { struct pkt_snapshot shot1; struct pkt_snapshot shot2; } debug; }; /** * Initializes @pkt using the rest of the arguments. */ static inline void pkt_fill(struct packet *pkt, struct sk_buff *skb, l3_protocol l3_proto, l4_protocol l4_proto, struct frag_hdr *hdr_frag, void *payload, struct packet *original_pkt) { pkt->skb = skb; pkt->l3_proto = l3_proto; pkt->l4_proto = l4_proto; pkt->is_inner = 0; pkt->is_hairpin = false; pkt->hdr_frag = hdr_frag; pkt->payload = payload; pkt->original_pkt = original_pkt; } /** * Returns @skb's layer-3 protocol in enum format. */ static inline l3_protocol pkt_l3_proto(const struct packet *pkt) { return pkt->l3_proto; } static inline struct iphdr *pkt_ip4_hdr(const struct packet *pkt) { return ip_hdr(pkt->skb); } static inline struct ipv6hdr *pkt_ip6_hdr(const struct packet *pkt) { return ipv6_hdr(pkt->skb); } /** * Returns @skb's layer-4 protocol in enum format. */ static inline l4_protocol pkt_l4_proto(const struct packet *pkt) { return pkt->l4_proto; } static inline struct udphdr *pkt_udp_hdr(const struct packet *pkt) { return udp_hdr(pkt->skb); } static inline struct tcphdr *pkt_tcp_hdr(const struct packet *pkt) { return tcp_hdr(pkt->skb); } static inline struct icmphdr *pkt_icmp4_hdr(const struct packet *pkt) { return icmp_hdr(pkt->skb); } static inline struct icmp6hdr *pkt_icmp6_hdr(const struct packet *pkt) { return icmp6_hdr(pkt->skb); } static inline struct frag_hdr *pkt_frag_hdr(const struct packet *pkt) { return pkt->hdr_frag; } static inline void *pkt_payload(const struct packet *pkt) { return pkt->payload; } static inline bool pkt_is_inner(const struct packet *pkt) { return pkt->is_inner; } static inline bool pkt_is_outer(const struct packet *pkt) { return !pkt_is_inner(pkt); } static inline bool pkt_is_intrinsic_hairpin(const struct packet *pkt) { return pkt->is_hairpin; } static inline int pkt_payload_offset(const struct packet *pkt) { /* * It seems like the network header functions are cancelling each other. * This is *NOT* the case! * The point is to make the offset's reference the same as the network * header's (whatever it is). */ return skb_network_offset(pkt->skb) + (pkt_payload(pkt) - (void *)skb_network_header(pkt->skb)); } static inline struct packet *pkt_original_pkt(const struct packet *pkt) { return pkt->original_pkt; } /** * Returns the length of @pkt as a layer-3 packet. It includes layer 3 headers * and layer 3 payload. * * It is supposed to replace @pkt->skb->len in certain situations. This is * because @pkt->skb->len also counts bytes present in subsequent fragments, and * that is not always what a translator wants. * * Includes l3 header, l4 header, data payload area and paged area. * Does not include frag_list area. */ static inline unsigned int pkt_len(const struct packet *pkt) { return skb_pagelen(pkt->skb); } /** * Returns the length of @pkt's layer-3 headers, including options or extension * headers. * Only counts bytes actually present within @pkt. In other words, headers of * any subsequent fragments linked to @pkt are ignored. * Also, it doesn't count inner l3 headers (from ICMP errors). * * Includes l3 header. * Does not include l4 header, data payload area, paged area nor frag_list area. */ static inline unsigned int pkt_l3hdr_len(const struct packet *pkt) { return skb_transport_header(pkt->skb) - skb_network_header(pkt->skb); } /** * Returns the length of @pkt's layer-4 header, including options. * Returns zero if @pkt has no transport headers. * It doesn't count inner l4 headers (from ICMP errors). * * Includes l4 header. * Does not include l3 header, data payload area, paged area nor frag_list area. */ static inline unsigned int pkt_l4hdr_len(const struct packet *pkt) { return pkt_payload(pkt) - (void *) skb_transport_header(pkt->skb); } /** * Returns the length of @pkt's layer-3 and layer-4 headers. * Only counts bytes actually present within @pkt. In other words, headers of * any subsequent fragments linked to @pkt are ignored. * Also, it doesn't count inner headers (from ICMP errors). * * Includes l3 header and l4 header. * Does not include data payload area, paged area nor frag_list area. */ static inline unsigned int pkt_hdrs_len(const struct packet *pkt) { return pkt_payload(pkt) - (void *) skb_network_header(pkt->skb); } /** * Returns the length of @pkt's layer-4 payload. * Only counts bytes actually present within @pkt. In other words, payload of * any subsequent fragments linked to @pkt is ignored. * * Includes data payload area and paged area. * Does not include l3 header, l4 header nor frag_list area. */ static inline unsigned int pkt_payload_len_frag(const struct packet *pkt) { return pkt_len(pkt) - pkt_hdrs_len(pkt); } /** * Returns the length of @pkt's layer-4 payload. * Includes the entire layer-4 payload (ie. including subsequent fragment * payload). * * This function is compatible with full and internal packets. Technically, it * might also be used with fragmented packets depending on context, but * pkt_payload_len_frag() would likely make more sense. * * Includes data payload area, paged area and frag_list area. * Does not include l3 header nor l4 header. */ static inline unsigned int pkt_payload_len_pkt(const struct packet *pkt) { return pkt->skb->len - pkt_hdrs_len(pkt); } /** * Returns the length of @pkt's layer-3 payload. * Only counts bytes actually present within @pkt. In other words, payload of * any subsequent fragments linked to @pkt is ignored. * * Includes l4 header, data payload area and paged area. * Does not include l3 header nor frag_list area. */ static inline unsigned int pkt_l3payload_len(const struct packet *pkt) { return pkt_len(pkt) - pkt_l3hdr_len(pkt); } /** * Returns the length of "skb"'s layer-3 payload. * Includes the entire layer-3 payload (ie. including subsequent fragment * payload). * * This function is only compatible with full packets; the result is otherwise * undefined. * * Includes l4 header, data payload area, paged area and frag_list area. * Does not include l3 header. */ static inline unsigned int pkt_datagram_len(const struct packet *pkt) { return pkt->skb->len - pkt_l3hdr_len(pkt); } static inline bool pkt_is_icmp6_error(const struct packet *pkt) { return pkt_l4_proto(pkt) == L4PROTO_ICMP && is_icmp6_error(pkt_icmp6_hdr(pkt)->icmp6_type); } static inline bool pkt_is_icmp4_error(const struct packet *pkt) { return pkt_l4_proto(pkt) == L4PROTO_ICMP && is_icmp4_error(pkt_icmp4_hdr(pkt)->type); } struct xlation; /** * Ensures @skb isn't corrupted and initializes @state->in out of it. * * After this function, code can assume: * - @skb contains full l3 and l4 headers (including inner ones), their order * seems to make sense, and they are all within the data area of @skb. (ie. * they are not paged.) * - @skb's payload isn't truncated (though inner packet payload might). * - The pkt_* functions above can now be used on @state->in. * - The length fields in the l3 headers can be relied upon. (But not the ones * contained in inner packets.) * * Healthy layer 4 checksums and lengths are not guaranteed, but that's not an * issue since this kind of corruption should be translated along (see * validate_icmp6_csum()). * * Also, this function does not ensure @skb is either TCP, UDP or ICMP. This is * because SIIT Jool must translate other protocols in a best-effort basis. * * This function can change the packet's pointers. If you eg. stored a pointer * to skb_network_header(skb), you will need to assign it again (by calling * skb_network_header() again). */ verdict pkt_init_ipv6(struct xlation *state, struct sk_buff *skb); verdict pkt_init_ipv4(struct xlation *state, struct sk_buff *skb); /** * @} */ unsigned char *jskb_pull(struct sk_buff *skb, unsigned int len); unsigned char *jskb_push(struct sk_buff *skb, unsigned int len); void snapshot_record(struct pkt_snapshot *shot, struct sk_buff *skb); void snapshot_report(struct pkt_snapshot *shot, char *prefix); #endif /* SRC_MOD_COMMON_PACKET_H_ */ jool-4.0.7/src/mod/common/timer.c0000664000175000017500000000311313576247347013552 00000000000000#include "mod/common/timer.h" #include "mod/common/linux_version.h" #include "mod/common/xlator.h" #include "mod/common/joold.h" #include "mod/common/db/bib/db.h" /* * TODO (performance) We don't cancel the timer much at all; it seems like we * should be using a hrtimer instead. * * the kernel has two core timer mechanisms. One of those — the * high-resolution timer (or "hrtimer") — subsystem, is focused on * near-term events where the timer is expected to run to completion. The * other subsystem is just called "kernel timers"; it offers less precision * but is more efficient in situations where the timer will probably be * canceled before it fires. * (Jonathan Corbet, 2017) */ #define TIMER_PERIOD msecs_to_jiffies(2000) static struct timer_list timer; static int clean_state(struct xlator *jool, void *args) { bib_clean(jool); joold_clean(jool); return 0; } static void timer_function( #if LINUX_VERSION_AT_LEAST(4, 15, 0, 8, 0) struct timer_list *arg #else unsigned long arg #endif ) { xlator_foreach(XT_NAT64, clean_state, NULL, NULL); mod_timer(&timer, jiffies + TIMER_PERIOD); } /** * This function should be always called *after* other init()s. */ int jtimer_setup(void) { #if LINUX_VERSION_AT_LEAST(4, 15, 0, 8, 0) timer_setup(&timer, timer_function, 0); #else init_timer(&timer); timer.function = timer_function; timer.expires = 0; timer.data = 0; #endif mod_timer(&timer, jiffies + TIMER_PERIOD); return 0; } /** * This function should be always called *before* other destroy()s. */ void jtimer_teardown(void) { del_timer_sync(&timer); } jool-4.0.7/src/mod/common/xlator.c0000664000175000017500000005266513576247347013763 00000000000000#include "mod/common/xlator.h" #include #include #include "common/types.h" #include "common/xlat.h" #include "mod/common/atomic_config.h" #include "mod/common/joold.h" #include "mod/common/kernel_hook.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/rcu.h" #include "mod/common/wkmalloc.h" #include "mod/common/db/blacklist4.h" #include "mod/common/db/config.h" #include "mod/common/db/eam.h" #include "mod/common/db/pool4/db.h" #include "mod/common/db/bib/db.h" #include "mod/common/steps/handling_hairpinning_nat64.h" #include "mod/common/steps/handling_hairpinning_siit.h" /** Netfilter module registration object */ static struct nf_hook_ops netfilter_hooks[] = { { .hook = hook_ipv6, .pf = PF_INET6, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP6_PRI_NAT_DST + 25, }, { .hook = hook_ipv4, .pf = PF_INET, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP_PRI_NAT_DST + 25, }, }; /** * An xlator, except it's the database node version. */ struct jool_instance { /** * The actual xlator. The other modules will actually receive a shallow * clone of it. * * TODO (fine) maybe turn this into a const. */ struct xlator jool; struct hlist_node table_hook; bool hash_set; u32 hash; struct list_head list_hook; #if LINUX_VERSION_AT_LEAST(4, 13, 0, 8, 0) /** * This points to a 2-sized array for nf_register_net_hooks(). * The 2 is currently hardcoded in code below. * * It needs to be a pointer to an array and not an array because the * ops needs to survive atomic configuration; the jool_instance needs to * be replaced but the ops needs to survive. * * This is only set if @jool.flags matches FW_NETFILTER. */ struct nf_hook_ops *nf_ops; #endif }; static DEFINE_HASHTABLE(instances, 6); /* The identifier is (ns, xt, iname). */ static struct list_head __rcu *netfilter_instances; static DEFINE_MUTEX(lock); static void (*defrag_enable)(struct net *ns); static u32 get_hash(struct net *ns, xlator_type xt, char const *iname) { u32 hash; unsigned int i; hash = hash_ptr(ns, 32); hash = 31 * hash + xt; for (i = 0; iname[i]; i++) hash = 31 * hash + iname[i]; return hash; } static u32 get_instance_hash(struct jool_instance *instance) { if (instance->hash_set) return instance->hash; instance->hash_set = true; instance->hash = get_hash(instance->jool.ns, xlator_flags2xt(instance->jool.flags), instance->jool.iname); return instance->hash; } static struct jool_instance *find_instance(struct net *ns, xlator_type xt, char const *iname) { struct jool_instance *instance; u32 hash; hash = get_hash(ns, xt, iname); hash_for_each_possible_rcu(instances, instance, table_hook, hash) if ((ns == instance->jool.ns) && (xt & instance->jool.flags) && (strcmp(iname, instance->jool.iname) == 0)) return instance; return NULL; } static void destroy_jool_instance(struct jool_instance *instance, bool unhook) { #if LINUX_VERSION_AT_LEAST(4, 13, 0, 8, 0) if (xlator_is_netfilter(&instance->jool)) { if (unhook) { nf_unregister_net_hooks(instance->jool.ns, instance->nf_ops, 2); } __wkfree("nf_hook_ops", instance->nf_ops); } #endif xlator_put(&instance->jool); log_info("Deleted instance '%s'.", instance->jool.iname); wkfree(struct jool_instance, instance); } static void xlator_get(struct xlator *jool) { jstat_get(jool->stats); switch (xlator_get_type(jool)) { case XT_SIIT: eamt_get(jool->siit.eamt); blacklist4_get(jool->siit.blacklist4); break; case XT_NAT64: pool4db_get(jool->nat64.pool4); bib_get(jool->nat64.bib); joold_get(jool->nat64.joold); break; } } /** * Moves the jool_instance nodes from the database (that match the @ns * namespace and the @xt type) to the @detached list. */ static void __flush_detach(struct net *ns, xlator_type xt, struct hlist_head *detached) { struct jool_instance *instance; struct hlist_node *tmp; size_t i; hash_for_each_safe(instances, i, tmp, instance, table_hook) { if (instance->jool.ns == ns && (instance->jool.flags & xt)) { hash_del_rcu(&instance->table_hook); hlist_add_head(&instance->table_hook, detached); if (instance->jool.flags & XF_NETFILTER) list_del_rcu(&instance->list_hook); } } } /** * Actually deletes all of the jool_instance nodes listed in @detached. */ static void __flush_delete(struct hlist_head *detached) { struct jool_instance *instance; struct hlist_node *tmp; if (hlist_empty(detached)) return; /* Calling synchronize_rcu_bh() for no reason is bad. */ synchronize_rcu_bh(); hlist_for_each_entry_safe(instance, tmp, detached, table_hook) destroy_jool_instance(instance, true); } /** * Called whenever the user deletes a namespace. Supposed to delete all the * instances inserted in that namespace. * * Update 2019-10-15: Also called during jool r-modprobe. */ static void __flush_net(struct net *ns, xlator_type xt) { HLIST_HEAD(detached); mutex_lock(&lock); __flush_detach(ns, xt, &detached); mutex_unlock(&lock); __flush_delete(&detached); } static void flush_net(struct net *ns) { __flush_net(ns, XT_ANY); } /** * Called whenever the user deletes... several namespaces? I'm not really sure. * The idea seems to be to minimize the net amount of synchronize_rcu_bh() * calls, but the kernel seems to always call flush_net() first and * flush_batch() next. It seems self-defeating to me. * * Maybe delete flush_net(); I guess it's redundant. */ static void flush_batch(struct list_head *net_exit_list) { struct net *ns; HLIST_HEAD(detached); mutex_lock(&lock); list_for_each_entry(ns, net_exit_list, exit_list) __flush_detach(ns, XT_ANY, &detached); mutex_unlock(&lock); __flush_delete(&detached); } /** Namespace-aware network operation registration object */ static struct pernet_operations joolns_ops = { .exit = flush_net, .exit_batch = flush_batch, }; /** * Initializes this module. Do not call other functions before this one. */ int xlator_setup(void) { struct list_head *list; int error; list = __wkmalloc("xlator DB", sizeof(struct list_head), GFP_KERNEL); if (!list) return -ENOMEM; INIT_LIST_HEAD(list); RCU_INIT_POINTER(netfilter_instances, list); error = register_pernet_subsys(&joolns_ops); if (error) { __wkfree("xlator DB", list); return error; } #if LINUX_VERSION_LOWER_THAN(4, 13, 0, 8, 0) error = nf_register_hooks(netfilter_hooks, ARRAY_SIZE(netfilter_hooks)); if (error) { unregister_pernet_subsys(&joolns_ops); __wkfree("xlator DB", list); return error; } #endif return 0; } void xlator_set_defrag(void (*_defrag_enable)(struct net *ns)) { defrag_enable = _defrag_enable; } /** * Graceful termination of this module. Reverts xlator_setup(). * Will clean up any allocated memory. */ void xlator_teardown(void) { #if LINUX_VERSION_LOWER_THAN(4, 13, 0, 8, 0) nf_unregister_hooks(netfilter_hooks, ARRAY_SIZE(netfilter_hooks)); #endif unregister_pernet_subsys(&joolns_ops); WARN(!hash_empty(instances), "There are elements in the xlator table after a cleanup."); WARN(!list_empty(netfilter_instances), "There are elements in the xlator list after a cleanup."); __wkfree("xlator DB", rcu_dereference_raw(netfilter_instances)); } static int init_siit(struct xlator *jool, struct config_prefix6 *pool6) { int error; error = globals_init(&jool->globals, XT_SIIT, pool6); if (error) return error; jool->stats = jstat_alloc(); if (!jool->stats) goto stats_fail; jool->siit.eamt = eamt_alloc(); if (!jool->siit.eamt) goto eamt_fail; jool->siit.blacklist4 = blacklist4_alloc(); if (!jool->siit.blacklist4) goto blacklist4_fail; jool->is_hairpin = is_hairpin_siit; jool->handling_hairpinning = handling_hairpinning_siit; return 0; blacklist4_fail: eamt_put(jool->siit.eamt); eamt_fail: jstat_put(jool->stats); stats_fail: return -ENOMEM; } static int init_nat64(struct xlator *jool, struct config_prefix6 *pool6) { int error; error = globals_init(&jool->globals, XT_NAT64, pool6); if (error) return error; jool->stats = jstat_alloc(); if (!jool->stats) goto stats_fail; jool->nat64.pool4 = pool4db_alloc(); if (!jool->nat64.pool4) goto pool4_fail; jool->nat64.bib = bib_alloc(); if (!jool->nat64.bib) goto bib_fail; jool->nat64.joold = joold_alloc(jool->ns); if (!jool->nat64.joold) goto joold_fail; jool->is_hairpin = is_hairpin_nat64; jool->handling_hairpinning = handling_hairpinning_nat64; return 0; joold_fail: bib_put(jool->nat64.bib); bib_fail: pool4db_put(jool->nat64.pool4); pool4_fail: jstat_put(jool->stats); stats_fail: return -ENOMEM; } int xlator_init(struct xlator *jool, struct net *ns, char *iname, xlator_flags flags, struct config_prefix6 *pool6) { int error; error = xf_validate(xlator_flags2xf(flags)); if (error) { log_err(XF_VALIDATE_ERRMSG); return error; } jool->ns = ns; strcpy(jool->iname, iname); jool->flags = flags; switch (xlator_flags2xt(flags)) { case XT_SIIT: return init_siit(jool, pool6); case XT_NAT64: return init_nat64(jool, pool6); } log_err(XT_VALIDATE_ERRMSG); return -EINVAL; } static int basic_validations(char const *iname, bool allow_null_iname, xlator_flags flags) { int error; error = iname_validate(iname, allow_null_iname); if (error) { log_err(INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1); return error; } error = xt_validate(xlator_flags2xt(flags)); if (error) { log_err(XT_VALIDATE_ERRMSG); return error; } return 0; } /** Basic validations when adding an xlator to the DB. */ static int basic_add_validations(char *iname, xlator_flags flags, struct config_prefix6 *pool6) { int error; error = basic_validations(iname, false, flags); if (error) return error; error = xf_validate(xlator_flags2xf(flags)); if (error) { log_err(XF_VALIDATE_ERRMSG); return error; } if ((flags & XT_NAT64) && (!pool6 || !pool6->set)) { log_err("pool6 is mandatory in NAT64 instances."); return -EINVAL; } return 0; } /** * Checks whether an instance (whose namespace is @ns, name is @iname and flags * are @flags) can be added to the database without breaking its * rules. * * Assumes the DB mutex is locked. */ static int validate_collision(struct net *ns, char *iname, xlator_flags flags) { struct jool_instance *instance; size_t i; hash_for_each(instances, i, instance, table_hook) { if (instance->jool.ns != ns) continue; if (xlator_flags2xt(instance->jool.flags) != xlator_flags2xt(flags)) continue; if (strcmp(instance->jool.iname, iname) == 0) { log_err("This namespace already has a Jool instance named '%s'.", iname); return -EEXIST; } if ((flags & XF_NETFILTER) && xlator_is_netfilter(&instance->jool)) { log_err("This namespace already has a Netfilter Jool instance."); return -EEXIST; } } return 0; } /** * Requires the mutex to be locked. */ static int __xlator_add(struct jool_instance *new, struct xlator *result) { struct list_head *list; #if LINUX_VERSION_AT_LEAST(4, 13, 0, 8, 0) if (xlator_is_netfilter(&new->jool)) { struct nf_hook_ops *ops; int error; ops = __wkmalloc("nf_hook_ops", 2 * sizeof(struct nf_hook_ops), GFP_KERNEL); if (!ops) return -ENOMEM; /* All error roads from now need to free @ops. */ memcpy(ops, netfilter_hooks, sizeof(netfilter_hooks)); error = nf_register_net_hooks(new->jool.ns, ops, 2); if (error) { __wkfree("nf_hook_ops", ops); return error; } new->nf_ops = ops; } #endif hash_add_rcu(instances, &new->table_hook, get_instance_hash(new)); if (new->jool.flags & XF_NETFILTER) { list = rcu_dereference_protected(netfilter_instances, lockdep_is_held(&lock)); list_add_tail_rcu(&new->list_hook, list); } if (new->jool.flags & XT_NAT64) defrag_enable(new->jool.ns); if (result) { xlator_get(&new->jool); memcpy(result, &new->jool, sizeof(new->jool)); } return 0; } /** * Adds a new Jool instance to the current namespace. * * @result: Will be initialized with a clone of the new translator. Send NULL * if you're not interested. */ int xlator_add(xlator_flags flags, char *iname, struct config_prefix6 *pool6, struct xlator *result) { struct jool_instance *instance; struct net *ns; int error; error = basic_add_validations(iname, flags, pool6); if (error) return error; ns = get_net_ns_by_pid(task_pid_vnr(current)); if (IS_ERR(ns)) { log_err("Could not retrieve the current namespace."); return PTR_ERR(ns); } /* All roads from now need to put @ns. */ instance = wkmalloc(struct jool_instance, GFP_KERNEL); if (!instance) { put_net(ns); return -ENOMEM; } /* All *error* roads from now need to free @instance. */ error = xlator_init(&instance->jool, ns, iname, flags, pool6); if (error) { wkfree(struct jool_instance, instance); put_net(ns); return error; } instance->hash_set = false; instance->hash = 0; #if LINUX_VERSION_AT_LEAST(4, 13, 0, 8, 0) instance->nf_ops = NULL; #endif /* Error roads from now no longer need to free @instance. */ /* Error roads from now need to properly destroy @instance. */ mutex_lock(&lock); /* All roads from now on must unlock the mutex. */ error = validate_collision(ns, iname, flags); if (error) goto mutex_fail; error = __xlator_add(instance, result); if (error) goto mutex_fail; mutex_unlock(&lock); put_net(ns); log_info("Created instance '%s'.", iname); return 0; mutex_fail: mutex_unlock(&lock); destroy_jool_instance(instance, false); put_net(ns); return error; } static int __xlator_rm(struct net *ns, char *iname, xlator_type xt) { struct jool_instance *instance; mutex_lock(&lock); instance = find_instance(ns, xt, iname); if (!instance) { mutex_unlock(&lock); log_err("The requested instance does not exist."); return -ESRCH; } hash_del_rcu(&instance->table_hook); if (instance->jool.flags & XF_NETFILTER) list_del_rcu(&instance->list_hook); mutex_unlock(&lock); synchronize_rcu_bh(); /* * Nobody can kref_get the databases now: * Other code should not do it because of the * xlator_find() contract, and xlator_find()'s * xlator_get() already happened. Other xlator_find()'s * xlator_get()s are not going to get in the way either * because the instance is no longer listed. * So finally return everything. */ destroy_jool_instance(instance, true); return 0; } int xlator_rm(xlator_type xt, char *iname) { struct net *ns; int error; error = xt_validate(xt); if (error) { log_err(XT_VALIDATE_ERRMSG); return error; } error = iname_validate(iname, false); if (error) { log_err(INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1); return error; } ns = get_net_ns_by_pid(task_pid_vnr(current)); if (IS_ERR(ns)) { log_err("Could not retrieve the current namespace."); return PTR_ERR(ns); } error = __xlator_rm(ns, iname, xt); put_net(ns); return error; } int xlator_replace(struct xlator *jool) { struct jool_instance *old; struct jool_instance *new; struct list_head *list; int error; error = basic_add_validations(jool->iname, jool->flags, &jool->globals.pool6); if (error) return error; new = wkmalloc(struct jool_instance, GFP_KERNEL); if (!new) return -ENOMEM; memcpy(&new->jool, jool, sizeof(*jool)); xlator_get(&new->jool); new->hash_set = false; #if LINUX_VERSION_AT_LEAST(4, 13, 0, 8, 0) new->nf_ops = NULL; #endif mutex_lock(&lock); old = find_instance(jool->ns, xlator_flags2xt(jool->flags), jool->iname); if (!old) { /* Not found, hence not replacing. Add it instead. */ error = __xlator_add(new, NULL); if (error) destroy_jool_instance(new, false); mutex_unlock(&lock); return error; } if (xlator_get_framework(&old->jool) != xlator_get_framework(&new->jool)) { log_err("Sorry; you can't change an instance's framework for now."); goto abort; } if (xlator_is_nat64(&new->jool) && !prefix6_equals( &old->jool.globals.pool6.prefix, &new->jool.globals.pool6.prefix)) { log_err("Sorry; you can't change a NAT64 instance's pool6 for now."); goto abort; } new->hash_set = old->hash_set; new->hash = old->hash; #if LINUX_VERSION_AT_LEAST(4, 13, 0, 8, 0) new->nf_ops = old->nf_ops; #endif /* * The old BIB and joold must survive, * because they shouldn't be reset by atomic configuration. */ if (xlator_is_nat64(&new->jool)) { bib_put(new->jool.nat64.bib); joold_put(new->jool.nat64.joold); new->jool.nat64.bib = old->jool.nat64.bib; new->jool.nat64.joold = old->jool.nat64.joold; } hash_del(&old->table_hook); hash_add(instances, &new->table_hook, get_instance_hash(new)); if (old->jool.flags & XF_NETFILTER) { list = rcu_dereference_protected(netfilter_instances, lockdep_is_held(&lock)); list_del_rcu(&old->list_hook); list_add_rcu(&new->list_hook, list); } mutex_unlock(&lock); synchronize_rcu_bh(); #if LINUX_VERSION_AT_LEAST(4, 13, 0, 8, 0) old->nf_ops = NULL; #endif if (xlator_is_nat64(&old->jool)) { old->jool.nat64.bib = NULL; old->jool.nat64.joold = NULL; } destroy_jool_instance(old, false); log_info("Replaced instance '%s'.", jool->iname); return 0; abort: mutex_unlock(&lock); destroy_jool_instance(new, false); return -EINVAL; } int xlator_flush(xlator_type xt) { struct net *ns; int error; error = xt_validate(xt); if (error) { log_err(XT_VALIDATE_ERRMSG); return error; } ns = get_net_ns_by_pid(task_pid_vnr(current)); if (IS_ERR(ns)) { log_err("Could not retrieve the current namespace."); return PTR_ERR(ns); } __flush_net(ns, xt); put_net(ns); return 0; } /** * Returns the instance from the database that matches @ns, @iname and @flags. * * A result value of 0 means success, * -ESRCH means that no instance matches @ns, @iname and @flags, * and -EINVAL means that @iname is not a valid instance name. * * 0 and -ESRCH do not print error message; -EINVAL does. * * @result will be populated with the instance. Send NULL if all you want is to * test whether it exists or not. If not NULL, please xlator_put() @result when * you're done using it. * * IT IS EXTREMELY IMPORTANT THAT YOU NEVER KREF_GET ANY OF @result'S MEMBERS!!! * (You are not meant to fork pointers to them.) */ int xlator_find(struct net *ns, xlator_flags flags, char const *iname, struct xlator *result) { struct jool_instance *instance; int error; /* * There is at least one caller to this function which cares about error * code. You need to review it if you want to add or reuse error codes. */ error = basic_validations(iname, true, flags); if (error) return error; rcu_read_lock_bh(); instance = find_instance(ns, xlator_flags2xt(flags), iname); if (!instance) goto not_found; if ((instance->jool.flags & xlator_flags2xf(flags)) == 0) goto not_found; if (result) { xlator_get(&instance->jool); memcpy(result, &instance->jool, sizeof(*result)); } rcu_read_unlock_bh(); return 0; not_found: rcu_read_unlock_bh(); return -ESRCH; } /** * xlator_find_current - Retrieves the Jool instance loaded in the current * namespace. * * Please xlator_put() the instance when you're done using it. */ int xlator_find_current(const char *iname, xlator_flags flags, struct xlator *result) { struct net *ns; int error; ns = get_net_ns_by_pid(task_pid_vnr(current)); if (IS_ERR(ns)) { log_err("Could not retrieve the current namespace."); return PTR_ERR(ns); } error = xlator_find(ns, flags, iname, result); put_net(ns); return error; } int xlator_find_netfilter(struct net *ns, struct xlator *result) { struct list_head *list; struct jool_instance *instance; rcu_read_lock_bh(); list = rcu_dereference_bh(netfilter_instances); list_for_each_entry_rcu(instance, list, list_hook) { if (ns == instance->jool.ns) { xlator_get(&instance->jool); memcpy(result, &instance->jool, sizeof(*result)); rcu_read_unlock_bh(); return 0; } } rcu_read_unlock_bh(); return -ESRCH; } /* * I am kref_put()ting and there's no lock. * This can be dangerous: http://lwn.net/Articles/93617/ * * I believe this is safe because this module behaves as as a "home" for all * these objects. While this module is dropping its reference, the refcounter * is guaranteed to be at least 1. Nobody can get a new reference while or after * this happens. Therefore nobody can sneak in a kref_get during the final put. */ void xlator_put(struct xlator *jool) { jstat_put(jool->stats); switch (xlator_get_type(jool)) { case XT_SIIT: eamt_put(jool->siit.eamt); blacklist4_put(jool->siit.blacklist4); return; case XT_NAT64: /* * Welp. There is no nf_defrag_ipv*_disable(). Guess we'll just * have to leave those modules around. */ pool4db_put(jool->nat64.pool4); if (jool->nat64.bib) bib_put(jool->nat64.bib); if (jool->nat64.joold) joold_put(jool->nat64.joold); return; } WARN(1, "Unknown translator type: %d", xlator_get_type(jool)); } static bool offset_equals(struct instance_entry_usr *offset, struct jool_instance *instance) { return (offset->ns == (__u64)instance->jool.ns) && (strcmp(offset->iname, instance->jool.iname) == 0); } int xlator_foreach(xlator_type xt, xlator_foreach_cb cb, void *args, struct instance_entry_usr *offset) { struct jool_instance *instance; unsigned int i; int error = 0; rcu_read_lock_bh(); hash_for_each(instances, i, instance, table_hook) { if (!(xlator_flags2xt(instance->jool.flags) & xt)) continue; if (offset) { if (offset_equals(offset, instance)) offset = NULL; } else { error = cb(&instance->jool, args); if (error) break; } } rcu_read_unlock_bh(); if (error) return error; if (offset) return -ESRCH; return 0; } xlator_type xlator_get_type(struct xlator *instance) { return xlator_is_nat64(instance) ? XT_NAT64 : XT_SIIT; } xlator_framework xlator_get_framework(struct xlator *instance) { return xlator_is_netfilter(instance) ? XF_NETFILTER : XF_IPTABLES; } jool-4.0.7/src/mod/common/nf_wrapper.h0000664000175000017500000000475013576247347014612 00000000000000#ifndef SRC_MOD_COMMON_NF_WRAPPER_H_ #define SRC_MOD_COMMON_NF_WRAPPER_H_ /** * @file * The kernel API is far from static. In particular, the Netfilter packet entry * function keeps changing. nf_hook.c, the file where we declare our packet * entry function, has been quite difficult to read for a while now. It's pretty * amusing, because we don't even use any of the noisy arguments. * * This file declares a usable function header that abstracts away all those * useless arguments. */ #include #include /* If this is a Red Hat-based kernel (Red Hat, CentOS, Fedora, etc)... */ #ifdef RHEL_RELEASE_CODE #if RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8, 0) #define NF_CALLBACK(name, skb) unsigned int name( \ void *priv, \ struct sk_buff *skb, \ const struct nf_hook_state *nhs) #elif RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7, 2) #define NF_CALLBACK(name, skb) unsigned int name( \ const struct nf_hook_ops *ops, \ struct sk_buff *skb, \ const struct net_device *in, \ const struct net_device *out, \ const struct nf_hook_state *nhs) \ #elif RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7, 0) #define NF_CALLBACK(name, skb) unsigned int name( \ const struct nf_hook_ops *ops, \ struct sk_buff *skb, \ const struct net_device *in, \ const struct net_device *out, \ int (*okfn)(struct sk_buff *)) #else /* * Note: kernel headers per version can be found here: http://vault.centos.org/ * (http://vault.centos.org/7.x.xxxx/updates/x86_64/Packages/) */ #error "Sorry; this version of RHEL is not supported because it's kind of old." #endif /* RHEL_RELEASE_CODE >= x */ /* If this NOT a RedHat-based kernel (Ubuntu, Debian, SuSE, etc)... */ #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0) #define NF_CALLBACK(name, skb) unsigned int name( \ void *priv, \ struct sk_buff *skb, \ const struct nf_hook_state *nhs) #elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0) #define NF_CALLBACK(name, skb) unsigned int name( \ const struct nf_hook_ops *ops, \ struct sk_buff *skb, \ const struct nf_hook_state *nhs) #elif LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0) #define NF_CALLBACK(name, skb) unsigned int name( \ const struct nf_hook_ops *ops, \ struct sk_buff *skb, \ const struct net_device *in, \ const struct net_device *out, \ int (*okfn)(struct sk_buff *)) #else #error "Linux < 3.13 isn't supported at all." #endif /* LINUX_VERSION_CODE > n */ #endif /* RHEL or not RHEL */ #endif /* SRC_MOD_COMMON_NF_WRAPPER_H_ */ jool-4.0.7/src/mod/common/atomic_config.c0000664000175000017500000002160013576247347015234 00000000000000#include "mod/common/atomic_config.h" #include #include #include "mod/common/log.h" #include "mod/common/wkmalloc.h" #include "mod/common/nl/global.h" #include "mod/common/db/eam.h" #include "mod/common/db/pool.h" #include "mod/common/joold.h" #include "mod/common/db/pool4/db.h" #include "mod/common/db/bib/db.h" /** * This represents the new configuration the user wants to apply to a certain * Jool instance. * * On account that the tables can hold any amount of entries, the configuration * can be quite big, so it is quite plausible it might not entirely fit in a * single Netlink message. So, in order to guarantee a configuration file is * loaded atomically, the values are stored in a separate container (a * "configuration candidate") as Netlink messages arrive. The running * configuration is then only replaced when the candidate has been completed and * validated. */ struct config_candidate { struct xlator xlator; /** Last jiffy the user made an edit. */ unsigned long update_time; /** Process ID of the client that is populating this candidate. */ pid_t pid; struct list_head list_hook; }; /** * We'll purge candidates after they've been inactive for this long. * This is because otherwise we depend on userspace sending us a commit at some * point, and we don't trust them. */ #define TIMEOUT msecs_to_jiffies(2000) static LIST_HEAD(db); static DEFINE_MUTEX(lock); static void candidate_destroy(struct config_candidate *candidate) { log_debug("Destroying atomic configuration candidate '%s'.", candidate->xlator.iname); xlator_put(&candidate->xlator); list_del(&candidate->list_hook); wkfree(struct config_candidate, candidate); } static void candidate_expire_maybe(struct config_candidate *candidate) { /* * The userspace application makes a series of requests which we pile * up in @candidate. If any of them fails, the @candidate is rolled * back. When the app finishes, it states so by requesting a commit. * But we don't trust the app. What happens if it dies before sending * the commit? * * Well, the candidate needs to expire. * * The natural solution to that would be a kernel timer, right? So why * is that nowhere to be found? * Because a timer would force us to synchronize access to @candidate * with a spinlock. (Mutexes kill timers.) That would also be incorrect * because all the handle_* functions below (which the spinlock would * also need to protect) can sleep for a variety of reasons. * * So instead, if the userspace app dies too early to send a commit, we * will hold the candidate until another atomic configuration request is * made and this if realizes that the previous one expired. * * So what prevents a commitless sequence of requests from claiming * memory pointlessly (other than another sequence of requests)? * Nothing. But if they were done out of malice, then the system has * much more to fear because it means the attacker has sudo. And if they * were not, the user will follow shortly with another request or kill * the NAT64 instance. So the @candidate will be released in the end * despite the fuss. It's not a memory leak, after all. * * I'd like to clarify I would rather see a better solution, but I * genuinely feel like making the handle_*() functions atomic is not it. */ if (time_after(jiffies, candidate->update_time + TIMEOUT)) candidate_destroy(candidate); } /** * Returns the instance candidate whose namespace is the current one and whose * name is @iname. */ static int get_candidate(char *iname, struct config_candidate **result) { struct net *ns; struct config_candidate *candidate; struct config_candidate *tmp; ns = get_net_ns_by_pid(task_pid_vnr(current)); if (IS_ERR(ns)) { log_err("Could not retrieve the current namespace."); return PTR_ERR(ns); } list_for_each_entry_safe(candidate, tmp, &db, list_hook) { if ((candidate->xlator.ns == ns) && (strcmp(candidate->xlator.iname, iname) == 0) && (candidate->pid == task_pid_nr(current))) { *result = candidate; put_net(ns); return 0; } candidate_expire_maybe(candidate); } log_err("Instance not found."); return -ESRCH; } static int handle_init(char *iname, xlator_type xt, void *payload, __u32 payload_len) { struct net *ns; struct request_init *request = payload; struct config_candidate *candidate; int error; ns = get_net_ns_by_pid(task_pid_vnr(current)); if (IS_ERR(ns)) { log_err("Could not retrieve the current namespace."); return PTR_ERR(ns); } candidate = wkmalloc(struct config_candidate, GFP_KERNEL); if (!candidate) { error = -ENOMEM; goto end; } error = xlator_init(&candidate->xlator, ns, iname, request->xf | xt, NULL); if (error) { wkfree(struct config_candidate, candidate); goto end; } candidate->update_time = jiffies; candidate->pid = task_pid_nr(current); list_add(&candidate->list_hook, &db); /* Fall through */ end: put_net(ns); return error; } static int handle_global(struct config_candidate *new, void *payload, __u32 payload_len, bool force) { int result; do { result = global_update(&new->xlator.globals, xlator_get_type(&new->xlator), force, payload, payload_len); if (result < 0) return result; payload += result; payload_len -= result; } while (payload_len > 0); return 0; } static int handle_eamt(struct config_candidate *new, void *payload, __u32 payload_len, bool force) { struct eamt_entry *eams = payload; unsigned int eam_count = payload_len / sizeof(*eams); struct eamt_entry *eam; unsigned int i; int error; if (xlator_is_nat64(&new->xlator)) { log_err("Stateful NAT64 doesn't have an EAMT."); return -EINVAL; } for (i = 0; i < eam_count; i++) { eam = &eams[i]; error = eamt_add(new->xlator.siit.eamt, &eam->prefix6, &eam->prefix4, force); if (error) return error; } return 0; } static int handle_blacklist4(struct config_candidate *new, void *payload, __u32 payload_len, bool force) { struct ipv4_prefix *prefixes = payload; unsigned int prefix_count = payload_len / sizeof(*prefixes); unsigned int i; int error; if (xlator_is_nat64(&new->xlator)) { log_err("Stateful NAT64 doesn't have IPv4 address pools."); return -EINVAL; } for (i = 0; i < prefix_count; i++) { error = pool_add(new->xlator.siit.blacklist4, &prefixes[i], force); if (error) return error; } return 0; } static int handle_pool4(struct config_candidate *new, void *payload, __u32 payload_len) { struct pool4_entry_usr *entries = payload; unsigned int entry_count = payload_len / sizeof(*entries); unsigned int i; int error; if (xlator_is_siit(&new->xlator)) { log_err("SIIT doesn't have pool4."); return -EINVAL; } for (i = 0; i < entry_count; i++) { error = pool4db_add(new->xlator.nat64.pool4, &entries[i]); if (error) return error; } return 0; } static int handle_bib(struct config_candidate *new, void *payload, __u32 payload_len) { struct bib_entry_usr *entries = payload; unsigned int entry_count = payload_len / sizeof(*entries); struct bib_entry entry; unsigned int i; int error; if (xlator_is_siit(&new->xlator)) { log_err("SIIT doesn't have BIBs."); return -EINVAL; } for (i = 0; i < entry_count; i++) { entry.ipv6 = entries[i].addr6; entry.ipv4 = entries[i].addr4; entry.l4_proto = entries[i].l4_proto; error = bib_add_static(&new->xlator, &entry); if (error) return error; } return 0; } static int commit(struct config_candidate *candidate) { int error; error = xlator_replace(&candidate->xlator); if (error) { log_err("xlator_replace() failed. Errcode %d", error); return error; } candidate_destroy(candidate); log_debug("The atomic configuration transaction was a success."); return 0; } int atomconfig_add(char *iname, xlator_type xt, void *config, size_t config_len, bool force) { struct config_candidate *candidate = NULL; __u16 type = *((__u16 *)config); int error; error = iname_validate(iname, false); if (error) { log_err(INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1); return error; } config += sizeof(type); config_len -= sizeof(type); mutex_lock(&lock); if (type == SEC_INIT) { error = handle_init(iname, xt, config, config_len); goto end; } error = get_candidate(iname, &candidate); if (error) goto end; switch (type) { case SEC_GLOBAL: error = handle_global(candidate, config, config_len, force); break; case SEC_EAMT: error = handle_eamt(candidate, config, config_len, force); break; case SEC_BLACKLIST: error = handle_blacklist4(candidate, config, config_len, force); break; case SEC_POOL4: error = handle_pool4(candidate, config, config_len); break; case SEC_BIB: error = handle_bib(candidate, config, config_len); break; case SEC_COMMIT: error = commit(candidate); break; default: log_err("Unknown configuration mode."); error = -EINVAL; break; } if (error) candidate_destroy(candidate); else candidate->update_time = jiffies; end: mutex_unlock(&lock); return error; } jool-4.0.7/src/mod/common/log.c0000664000175000017500000000322113576247347013213 00000000000000#include "mod/common/log.h" #include #include "mod/common/error_pool.h" #include "mod/common/wkmalloc.h" /* * From the logging module's point of view, Jool functions in three different * contexts: * * 1. Packet context (ie. while translating a packet). * It's a softirq, and should never print errors unless they're critical. * (This is because normal errors should be catched in the other contexts.) * 2. Userspace client command handlers. * It's user context. It should print errors in the kernel ring buffer, and * also send them to userspace so the client will print them. This is needed * because the console might not be listening to kernel messages, and our * users are not kernel devs. * 3. Module insertion and removal (ie. modprobe). * It's the same as 2, except the userspace client is not present, and so * the error message cannot be sent to userspace. */ static bool is_packet_context(void) { return in_softirq(); } void log_err(const char *format, ...) { char *msg; va_list args; msg = __wkmalloc("error_code.msg", 256, GFP_ATOMIC); if (!msg) { /* Fall back to shitty print */ va_start(args, format); vprintk(format, args); va_end(args); return; } /* Want to avoid vprintk because I can't append a level string to it. */ va_start(args, format); vsnprintf(msg, 512, format, args); va_end(args); /* * Errors should be catched during user context, so a log_err() * during packet context should be upgraded to critical. */ if (WARN(is_packet_context(), msg)) { __wkfree("error_code.msg", msg); return; } pr_err("Jool error: %s\n", msg); error_pool_add_message(msg); } jool-4.0.7/src/mod/common/core.c0000664000175000017500000001043213576247347013364 00000000000000#include "mod/common/core.h" #include "common/config.h" #include "mod/common/log.h" #include "mod/common/translation_state.h" #include "mod/common/xlator.h" #include "mod/common/rfc7915/core.h" #include "mod/common/steps/compute_outgoing_tuple.h" #include "mod/common/steps/determine_incoming_tuple.h" #include "mod/common/steps/filtering_and_updating.h" #include "mod/common/steps/send_packet.h" static verdict validate_xlator(struct xlation *state) { struct globals *cfg = &state->jool.globals; if (!cfg->enabled) return untranslatable(state, JSTAT_XLATOR_DISABLED); if (xlation_is_nat64(state) && !cfg->pool6.set) { log_warn_once("Cannot translate; pool6 is unset."); return untranslatable(state, JSTAT_POOL6_UNSET); } return VERDICT_CONTINUE; } static verdict core_common(struct xlation *state) { verdict result; if (xlation_is_nat64(state)) { result = determine_in_tuple(state); if (result != VERDICT_CONTINUE) return result; result = filtering_and_updating(state); if (result != VERDICT_CONTINUE) return result; result = compute_out_tuple(state); if (result != VERDICT_CONTINUE) return result; } result = translating_the_packet(state); if (result != VERDICT_CONTINUE) return result; if (state->jool.is_hairpin(state)) { result = state->jool.handling_hairpinning(state); kfree_skb(state->out.skb); /* Put this inside of hh()? */ } else { result = sendpkt_send(state); /* sendpkt_send() releases out's skb regardless of verdict. */ } if (result != VERDICT_CONTINUE) return result; log_debug("Success."); /* * The new packet was sent, so the original one can die; drop it. * * NF_DROP translates into an error (see nf_hook_slow()). * Sending a replacing & translated version of the packet should not * count as an error, so we free the incoming packet ourselves and * return NF_STOLEN on success. */ kfree_skb(state->in.skb); return stolen(state, JSTAT_SUCCESS); } static void send_icmp4_error(struct xlation *state, verdict result) { bool success; if (state->result.icmp == ICMPERR_NONE) return; if (result == VERDICT_UNTRANSLATABLE) return; /* Linux will decide what to do. */ success = icmp64_send4(state->in.skb, state->result.icmp, state->result.info); jstat_inc(state->jool.stats, success ? JSTAT_ICMP4ERR_SUCCESS : JSTAT_ICMP4ERR_FAILURE); } verdict core_4to6(struct sk_buff *skb, struct xlation *state) { verdict result; jstat_inc(state->jool.stats, JSTAT_RECEIVED4); /* * PLEASE REFRAIN FROM READING HEADERS FROM @skb UNTIL * pkt_init_ipv4() HAS pskb_may_pull()ED THEM. */ result = validate_xlator(state); if (result != VERDICT_CONTINUE) goto end; log_debug("==============================================="); log_debug("Jool instance '%s': Received a v4 packet.", state->jool.iname); /* Reminder: This function might change pointers. */ result = pkt_init_ipv4(state, skb); if (result != VERDICT_CONTINUE) goto end; /* skb_log(skb, "Incoming IPv4 packet"); */ result = core_common(state); /* Fall through */ end: send_icmp4_error(state, result); return result; } static void send_icmp6_error(struct xlation *state, verdict result) { bool success; if (state->result.icmp == ICMPERR_NONE) return; if (result == VERDICT_UNTRANSLATABLE) return; /* Linux will decide what to do. */ success = icmp64_send6(state->in.skb, state->result.icmp, state->result.info); jstat_inc(state->jool.stats, success ? JSTAT_ICMP6ERR_SUCCESS : JSTAT_ICMP6ERR_FAILURE); } verdict core_6to4(struct sk_buff *skb, struct xlation *state) { verdict result; jstat_inc(state->jool.stats, JSTAT_RECEIVED6); /* * PLEASE REFRAIN FROM READING HEADERS FROM @skb UNTIL * pkt_init_ipv6() HAS pskb_may_pull()ED THEM. */ snapshot_record(&state->in.debug.shot1, skb); result = validate_xlator(state); if (result != VERDICT_CONTINUE) goto end; log_debug("==============================================="); log_debug("Jool instance '%s': Received a v6 packet.", state->jool.iname); /* Reminder: This function might change pointers. */ result = pkt_init_ipv6(state, skb); if (result != VERDICT_CONTINUE) goto end; /* skb_log(skb, "Incoming IPv6 packet"); */ snapshot_record(&state->in.debug.shot2, skb); result = core_common(state); /* Fall through */ end: send_icmp6_error(state, result); return result; } jool-4.0.7/src/mod/common/Makefile0000664000175000017500000000053613576247347013734 00000000000000MODULES_DIR ?= /lib/modules/$(shell uname -r) KERNEL_DIR ?= ${MODULES_DIR}/build all: make -C ${KERNEL_DIR} M=$$PWD JOOL_FLAGS="${JOOL_FLAGS}" modules: make -C ${KERNEL_DIR} M=$$PWD $@ modules_install: make -C ${KERNEL_DIR} M=$$PWD $@ install: modules_install depmod clean: make -C ${KERNEL_DIR} M=$$PWD $@ debug: make all JOOL_FLAGS+=-DDEBUG jool-4.0.7/src/mod/common/rfc6052.c0000664000175000017500000000750013576247347013525 00000000000000#include "mod/common/rfc6052.h" #include #include #include "common/types.h" #include "mod/common/address.h" union ipv4_address { __be32 as32; __u8 as8[4]; }; int __rfc6052_6to4(struct ipv6_prefix const *prefix, struct in6_addr const *src, struct in_addr *dst) { union ipv4_address dst_aux; if (!prefix6_contains(prefix, src)) return -EINVAL; switch (prefix->len) { case 32: dst_aux.as32 = src->s6_addr32[1]; break; case 40: dst_aux.as8[0] = src->s6_addr[5]; dst_aux.as8[1] = src->s6_addr[6]; dst_aux.as8[2] = src->s6_addr[7]; dst_aux.as8[3] = src->s6_addr[9]; break; case 48: dst_aux.as8[0] = src->s6_addr[6]; dst_aux.as8[1] = src->s6_addr[7]; dst_aux.as8[2] = src->s6_addr[9]; dst_aux.as8[3] = src->s6_addr[10]; break; case 56: dst_aux.as8[0] = src->s6_addr[7]; dst_aux.as8[1] = src->s6_addr[9]; dst_aux.as8[2] = src->s6_addr[10]; dst_aux.as8[3] = src->s6_addr[11]; break; case 64: dst_aux.as8[0] = src->s6_addr[9]; dst_aux.as8[1] = src->s6_addr[10]; dst_aux.as8[2] = src->s6_addr[11]; dst_aux.as8[3] = src->s6_addr[12]; break; case 96: dst_aux.as32 = src->s6_addr32[3]; break; default: /* * Critical because enforcing valid prefixes is pool6's * responsibility, not ours. */ WARN(true, "Prefix has an invalid length: %u.", prefix->len); return -EINVAL; } dst->s_addr = dst_aux.as32; return 0; } int rfc6052_6to4(struct ipv6_prefix const *prefix, struct in6_addr const *src, struct result_addrxlat64 *dst) { int error; error = __rfc6052_6to4(prefix, src, &dst->addr); if (error) return error; dst->entry.method = AXM_RFC6052; dst->entry.prefix6052 = *prefix; return 0; } int __rfc6052_4to6(struct ipv6_prefix const *prefix, struct in_addr const *src, struct in6_addr *dst) { union ipv4_address src_aux; src_aux.as32 = src->s_addr; memset(dst, 0, sizeof(*dst)); switch (prefix->len) { case 32: dst->s6_addr32[0] = prefix->addr.s6_addr32[0]; dst->s6_addr32[1] = src_aux.as32; break; case 40: dst->s6_addr32[0] = prefix->addr.s6_addr32[0]; dst->s6_addr[4] = prefix->addr.s6_addr[4]; dst->s6_addr[5] = src_aux.as8[0]; dst->s6_addr[6] = src_aux.as8[1]; dst->s6_addr[7] = src_aux.as8[2]; dst->s6_addr[9] = src_aux.as8[3]; break; case 48: dst->s6_addr32[0] = prefix->addr.s6_addr32[0]; dst->s6_addr[4] = prefix->addr.s6_addr[4]; dst->s6_addr[5] = prefix->addr.s6_addr[5]; dst->s6_addr[6] = src_aux.as8[0]; dst->s6_addr[7] = src_aux.as8[1]; dst->s6_addr[9] = src_aux.as8[2]; dst->s6_addr[10] = src_aux.as8[3]; break; case 56: dst->s6_addr32[0] = prefix->addr.s6_addr32[0]; dst->s6_addr[4] = prefix->addr.s6_addr[4]; dst->s6_addr[5] = prefix->addr.s6_addr[5]; dst->s6_addr[6] = prefix->addr.s6_addr[6]; dst->s6_addr[7] = src_aux.as8[0]; dst->s6_addr[9] = src_aux.as8[1]; dst->s6_addr[10] = src_aux.as8[2]; dst->s6_addr[11] = src_aux.as8[3]; break; case 64: dst->s6_addr32[0] = prefix->addr.s6_addr32[0]; dst->s6_addr32[1] = prefix->addr.s6_addr32[1]; dst->s6_addr[9] = src_aux.as8[0]; dst->s6_addr[10] = src_aux.as8[1]; dst->s6_addr[11] = src_aux.as8[2]; dst->s6_addr[12] = src_aux.as8[3]; break; case 96: dst->s6_addr32[0] = prefix->addr.s6_addr32[0]; dst->s6_addr32[1] = prefix->addr.s6_addr32[1]; dst->s6_addr32[2] = prefix->addr.s6_addr32[2]; dst->s6_addr32[3] = src_aux.as32; break; default: /* * Critical because enforcing valid prefixes is pool6's * responsibility, not ours. */ WARN(true, "Prefix has an invalid length: %u.", prefix->len); return -EINVAL; } return 0; } int rfc6052_4to6(struct ipv6_prefix const *prefix, struct in_addr const *src, struct result_addrxlat46 *dst) { int error; error = __rfc6052_4to6(prefix, src, &dst->addr); if (error) return error; dst->entry.method = AXM_RFC6052; dst->entry.prefix6052 = *prefix; return 0; } jool-4.0.7/src/mod/common/translation_state.h0000664000175000017500000000314213576247347016177 00000000000000#ifndef SRC_MOD_COMMON_TRANSLATION_STATE_H_ #define SRC_MOD_COMMON_TRANSLATION_STATE_H_ #include "mod/common/icmp_wrapper.h" #include "mod/common/packet.h" #include "mod/common/xlator.h" #include "mod/common/db/bib/entry.h" struct xlation_result { enum icmp_errcode icmp; __u32 info; }; /** * State of the current translation. */ struct xlation { /** * The instance of Jool that's in charge of carrying out this * translation. */ struct xlator jool; /** The original packet. */ struct packet in; /** The translated version of @in. */ struct packet out; /** * Convenient accesor to the BIB and session entries that correspond * to the packet being translated, so you don't have to find it again. */ struct bib_session entries; struct xlation_result result; }; int xlation_setup(void); void xlation_teardown(void); struct xlation *xlation_create(struct xlator *jool); void xlation_init(struct xlation *state, struct xlator *jool); /* xlation_cleanup() not needed. */ void xlation_destroy(struct xlation *state); verdict untranslatable(struct xlation *state, enum jool_stat_id stat); verdict untranslatable_icmp(struct xlation *state, enum jool_stat_id stat, enum icmp_errcode icmp, __u32 info); verdict drop(struct xlation *state, enum jool_stat_id stat); verdict drop_icmp(struct xlation *state, enum jool_stat_id stat, enum icmp_errcode icmp, __u32 info); verdict stolen(struct xlation *state, enum jool_stat_id stat); #define xlation_is_siit(state) xlator_is_siit(&(state)->jool) #define xlation_is_nat64(state) xlator_is_nat64(&(state)->jool) #endif /* SRC_MOD_COMMON_TRANSLATION_STATE_H_ */ jool-4.0.7/src/mod/common/types.c0000664000175000017500000000300513576247347013576 00000000000000#include "mod/common/types.h" #include #include #include #include "mod/common/log.h" bool is_icmp6_info(__u8 type) { return (type == ICMPV6_ECHO_REQUEST) || (type == ICMPV6_ECHO_REPLY); } bool is_icmp6_error(__u8 type) { /* * We do not return !is_icmp6_info(type) because unknown codes should be considered * untranslatable. */ return (type == ICMPV6_DEST_UNREACH) || (type == ICMPV6_PKT_TOOBIG) || (type == ICMPV6_TIME_EXCEED) || (type == ICMPV6_PARAMPROB); } bool is_icmp4_info(__u8 type) { return (type == ICMP_ECHO) || (type == ICMP_ECHOREPLY); } bool is_icmp4_error(__u8 type) { return (type == ICMP_DEST_UNREACH) || (type == ICMP_SOURCE_QUENCH) || (type == ICMP_REDIRECT) || (type == ICMP_TIME_EXCEEDED) || (type == ICMP_PARAMETERPROB); } /** * log_tuple() - Prints the "tuple" tuple in the kernel ring buffer. * @tuple: Structure to be dumped on logging. * * It's a ripoff of nf_ct_dump_tuple(), adjusted to comply to this project's logging requirements. */ void log_tuple(struct tuple *tuple) { switch (tuple->l3_proto) { case L3PROTO_IPV4: log_debug("Tuple: %pI4#%u -> %pI4#%u (%s)", &tuple->src.addr4.l3, tuple->src.addr4.l4, &tuple->dst.addr4.l3, tuple->dst.addr4.l4, l4proto_to_string(tuple->l4_proto)); break; case L3PROTO_IPV6: log_debug("Tuple: %pI6c#%u -> %pI6c#%u (%s)", &tuple->src.addr6.l3, tuple->src.addr6.l4, &tuple->dst.addr6.l3, tuple->dst.addr6.l4, l4proto_to_string(tuple->l4_proto)); break; } } jool-4.0.7/src/mod/common/joold.c0000664000175000017500000004547013576247347013555 00000000000000#include "mod/common/joold.h" #include #include "common/constants.h" #include "mod/common/log.h" #include "mod/common/wkmalloc.h" #include "mod/common/xlator.h" #include "mod/common/nl/nl_core.h" #include "mod/common/db/bib/db.h" #define GLOBALS(xlator) (xlator->globals.nat64.joold) struct joold_advertise_struct { struct taddr4_tuple offset; struct nlcore_buffer *buffer; }; /* * Remember to include in the user documentation: * * - pool4 and static BIB entries have to be synchronized manually. * - Apparently, users do not actually need to keep clocks in sync. */ struct joold_queue { /** * Sessions so far listed to be sent to the daemon. * * TODO (performance) this might be slightly optimizable, but I don't * care enough at the moment. * Sessions are accumulated in this list. When the module decides it * needs to send them, it copies them to a buffer (so they can be fed to * the nl core module), and then nl core copies that into an skb. * Instead of adding to a list, we should probably build the buffer * directly (or the skb). * On the downside, this might mean the spinlock would need to be held * for longer times (as the list splicing is very fast and cheap * currently). */ struct list_head sessions; /** Number of nodes in @sessions. */ unsigned int count; /** Number of advertisement nodes in @sessions. */ unsigned int advertisement_count; /** * Can we send a packet? * We need to wait for ACKs because the kernel can't handle too many * Netlink messages at once. */ bool ack_received; /** * Jiffy at which the last batch of sessions was sent. * If the ACK was lost for some reason, this should get us back on * track. */ unsigned long last_flush_time; /** Namespace where the sessions will be multicasted. */ struct net *ns; spinlock_t lock; struct kref refs; }; /** * Subset of fields from struct session_entry which need to be synchronized * across Jool instances. * * Note: Careful with the layout of this structure! It's currently padded and * packed to fit in exactly 64 bytes. * http://www.catb.org/esr/structure-packing/ */ struct joold_session { /** * This is not actually the same as session_entry->update_time. * session_entry->update_time is the time at which the session was last * updated. * This update_time is the age of the session's last update. * We do this so we don't have to ask the user to synchronize clocks. * (We're assuming the session will travel to the other Jools * instantaneously.) * * Also, session->entry->update time is measured in jiffies. * This one is measured in milliseconds. */ __be64 update_time; /* Exactly 8 bytes so far. */ struct in6_addr src6_addr; struct in6_addr dst6_addr; struct in_addr src4_addr; struct in_addr dst4_addr; __be16 src6_port; __be16 dst6_port; __be16 src4_port; __be16 dst4_port; /* * Exactly 56 bytes so far. * Notice that the following can be compressed further but there's no * point currently. */ __u8 l4_proto; __u8 state; /* See session_timer_type. */ __u8 timer_type; /* Exactly 59 bytes so far. */ /** * Forces sizeof(struct joold_session) to be exacly 64 bytes. * If not present, sizeof yields me 60 in a 32-bit machine and 64 in a * 64-bit machine, which breaks compatibility. */ __u8 padding[5]; }; /** * A session or group of sessions that need to be transmitted to other Jool * instances in the near future. */ struct joold_node { /** * true - @group below is valid. * false - @single below is valid. */ bool is_group; union { /** * If @single is valid, this node represents a lone session. * These are added whenever a translating packet updates a * session. */ struct joold_session single; /** * If @group is valid, the user issued an --advertise. * The whole database needs to be transmitted. * Unfortunately, a typical table won't fit in a single * packet so this node might stick for several iterations and * keep track of what is yet to be sent. */ struct { /** IPv4 ID of the session sent in the last packet. */ struct taddr4_tuple offset; /** * true - @offset above is valid. * false - @no sessions from this node have been sent. */ bool offset_set; /** Protocol table this group belongs to. */ l4_protocol proto; } group; }; /** List hook to joold_queue.sessions. */ struct list_head nextprev; }; static struct kmem_cache *node_cache; /** * joold_setup - Initializes this module. Make sure you call this before other * joold_ functions. */ int joold_setup(void) { node_cache = kmem_cache_create("jool_joold_nodes", sizeof(struct joold_node), 0, 0, NULL); if (!node_cache) { log_err("Could not allocate the Joold node cache."); return -ENOMEM; } return 0; } /** * joold_teardown - Reverts joold_setup(). */ void joold_teardown(void) { kmem_cache_destroy(node_cache); } static bool should_send(struct xlator *jool) { struct joold_queue *queue = jool->nat64.joold; unsigned long deadline; unsigned int max_sessions; if (queue->count == 0) return false; deadline = msecs_to_jiffies(GLOBALS(jool).flush_deadline); if (time_before(queue->last_flush_time + deadline, jiffies)) return true; if (!queue->ack_received) return false; if (GLOBALS(jool).flush_asap) return true; if (queue->advertisement_count > 0) return true; max_sessions = GLOBALS(jool).max_payload / sizeof(struct joold_session); return queue->count >= max_sessions; } static int write_single_node(struct joold_node *node, struct nlcore_buffer *buffer) { __be64 old; __u64 time; int full; old = node->single.update_time; time = be64_to_cpu(node->single.update_time); time = jiffies_to_msecs(jiffies - time); node->single.update_time = cpu_to_be64(time); full = nlbuffer_write(buffer, &node->single, sizeof(node->single)); if (full) { /* We'll convert the time again in the next flush, so revert. */ node->single.update_time = old; } return full; } static int foreach_cb(struct session_entry const *entry, void *arg) { int status; struct joold_advertise_struct *adv = arg; struct joold_session session; __u64 update_time; update_time = jiffies_to_msecs(jiffies - entry->update_time); session.update_time = cpu_to_be64(update_time); session.src6_addr = entry->src6.l3; session.dst6_addr = entry->dst6.l3; session.src4_addr = entry->src4.l3; session.dst4_addr = entry->dst4.l3; session.src6_port = cpu_to_be16(entry->src6.l4); session.dst6_port = cpu_to_be16(entry->dst6.l4); session.src4_port = cpu_to_be16(entry->src4.l4); session.dst4_port = cpu_to_be16(entry->dst4.l4); session.l4_proto = entry->proto; session.state = entry->state; session.timer_type = entry->timer_type; memset(session.padding, 0, sizeof(session.padding)); status = nlbuffer_write(adv->buffer, &session, sizeof(session)); if (status) { adv->offset.src = entry->src4; adv->offset.dst = entry->dst4; } return status; } static int write_group_node(struct xlator *jool, struct joold_node *node, struct nlcore_buffer *buffer) { struct joold_advertise_struct arg; struct session_foreach_func func = { .cb = foreach_cb, .arg = &arg, }; struct session_foreach_offset offset_struct; struct session_foreach_offset *offset = NULL; int error; arg.buffer = buffer; if (node->group.offset_set) { offset_struct.offset = node->group.offset; offset_struct.include_offset = true; offset = &offset_struct; } error = bib_foreach_session(jool, node->group.proto, &func, offset); if (error > 0) { node->group.offset = arg.offset; node->group.offset_set = true; } return error; } /** * Builds an nl-core-compatible buffer out of @sessions. */ static int build_buffer(struct nlcore_buffer *buffer, struct xlator *jool) { struct joold_queue *queue = jool->nat64.joold; struct request_hdr jool_hdr; struct joold_node *node; int error; init_request_hdr(&jool_hdr, XT_NAT64, MODE_JOOLD, OP_ADD, false); jool_hdr.castness = 'm'; error = nlbuffer_init_request(buffer, &jool_hdr, GLOBALS(jool).max_payload - sizeof(jool_hdr)); if (error) { log_debug("nlbuffer_init_request() threw error %d.", error); return error; } while (!list_empty(&queue->sessions)) { node = list_first_entry(&queue->sessions, struct joold_node, nextprev); error = (node->is_group) ? write_group_node(jool, node, buffer) : write_single_node(node, buffer); if (error > 0) { return 0; } else if (error) { nlbuffer_clean(buffer); return error; } queue->count--; if (node->is_group) queue->advertisement_count--; list_del(&node->nextprev); wkmem_cache_free("joold node", node_cache, node); } /* * This can happen when the list only had group nodes and the session * database was empty. */ if (sizeof(jool_hdr) == buffer->len) { log_debug("There was nothing to send after all."); nlbuffer_clean(buffer); return -ENOENT; } return 0; } struct joold_buffer { struct nlcore_buffer buffer; bool initialized; }; #define JOOLD_BUFFER_INIT { .initialized = false } /** * Assumes the lock is held. * YOU HAVE TO CALL send_to_userspace() AFTER YOU RELEASE THE SPINLOCK!!! */ static void send_to_userspace_prepare(struct xlator *jool, struct joold_buffer *buffer) { if (!should_send(jool)) return; if (build_buffer(&buffer->buffer, jool)) return; buffer->initialized = true; /* * BTW: This sucks. * We're assuming that the nlcore_send_multicast_message() during * send_to_userspace() is going to succeed. * But the alternative is to do the nlcore_send_multicast_message() * with the lock held, and I don't have the stomach for that. */ jool->nat64.joold->ack_received = false; jool->nat64.joold->last_flush_time = jiffies; } static void send_to_userspace(struct joold_buffer *buffer, struct net *ns) { int error; if (!buffer->initialized) return; log_debug("Sending multicast message."); error = nlcore_send_multicast_message(ns, &buffer->buffer); if (!error) log_debug("Multicast message sent."); nlbuffer_clean(&buffer->buffer); } /** * joold_create - Constructor for joold_queue structs. */ struct joold_queue *joold_alloc(struct net *ns) { struct joold_queue *queue; queue = wkmalloc(struct joold_queue, GFP_KERNEL); if (!queue) return NULL; INIT_LIST_HEAD(&queue->sessions); queue->count = 0; queue->advertisement_count = 0; queue->ack_received = true; queue->last_flush_time = jiffies; queue->ns = ns; spin_lock_init(&queue->lock); kref_init(&queue->refs); return queue; } void joold_get(struct joold_queue *queue) { kref_get(&queue->refs); } static void purge_sessions(struct joold_queue *queue) { struct joold_node *node; while (!list_empty(&queue->sessions)) { node = list_first_entry(&queue->sessions, struct joold_node, nextprev); list_del(&node->nextprev); wkmem_cache_free("joold node", node_cache, node); } queue->count = 0; queue->advertisement_count = 0; queue->ack_received = true; queue->last_flush_time = jiffies; } static void joold_release(struct kref *refs) { struct joold_queue *queue; queue = container_of(refs, struct joold_queue, refs); purge_sessions(queue); wkfree(struct joold_queue, queue); } void joold_put(struct joold_queue *queue) { kref_put(&queue->refs, joold_release); } /** * joold_add - Add the @entry session to @queue. * * This is the function that gets called whenever a packet translation * successfully triggers the creation of a session entry. @entry will be sent * to the joold daemon. */ void joold_add(struct xlator *jool, struct session_entry *entry) { struct joold_queue *queue = jool->nat64.joold; struct joold_node *copy; struct joold_buffer buffer = JOOLD_BUFFER_INIT; spin_lock_bh(&queue->lock); if (!GLOBALS(jool).enabled) { spin_unlock_bh(&queue->lock); return; } copy = wkmem_cache_alloc("joold node", node_cache, GFP_ATOMIC); if (!copy) { spin_unlock_bh(&queue->lock); return; } copy->is_group = false; /* * Do not convert the time yet; if the session is queued for a long * time, these will be horribly inaccurate. */ copy->single.update_time = cpu_to_be64(entry->update_time); copy->single.src6_addr = entry->src6.l3; copy->single.dst6_addr = entry->dst6.l3; copy->single.src4_addr = entry->src4.l3; copy->single.dst4_addr = entry->dst4.l3; copy->single.src6_port = cpu_to_be16(entry->src6.l4); copy->single.dst6_port = cpu_to_be16(entry->dst6.l4); copy->single.src4_port = cpu_to_be16(entry->src4.l4); copy->single.dst4_port = cpu_to_be16(entry->dst4.l4); copy->single.l4_proto = entry->proto; copy->single.state = entry->state; copy->single.timer_type = entry->timer_type; memset(copy->single.padding, 0, sizeof(copy->single.padding)); list_add_tail(©->nextprev, &queue->sessions); queue->count++; if (queue->count > GLOBALS(jool).capacity) { log_warn_once("Too many sessions are queuing up!\n" "Cannot synchronize fast enough; I will have to drop some sessions.\n" "Sorry."); purge_sessions(queue); } else { send_to_userspace_prepare(jool, &buffer); } spin_unlock_bh(&queue->lock); send_to_userspace(&buffer, jool->ns); } static void init_session_entry(struct joold_session *in, struct session_entry *out) { __u64 update_time; out->src6.l3 = in->src6_addr; out->src6.l4 = be16_to_cpu(in->src6_port); out->dst6.l3 = in->dst6_addr; out->dst6.l4 = be16_to_cpu(in->dst6_port); out->src4.l3 = in->src4_addr; out->src4.l4 = be16_to_cpu(in->src4_port); out->dst4.l3 = in->dst4_addr; out->dst4.l4 = be16_to_cpu(in->dst4_port); out->proto = in->l4_proto; out->state = in->state; out->timer_type = in->timer_type; update_time = be64_to_cpu(in->update_time); update_time = jiffies - msecs_to_jiffies(update_time); out->update_time = update_time; out->has_stored = false; } struct add_params { struct session_entry new; struct joold_session *newd; bool success; }; static enum session_fate collision_cb(struct session_entry *old, void *arg) { struct add_params *params = arg; struct session_entry *new = ¶ms->new; if (session_equals(old, new)) { /* It's the same session; update it. */ old->state = new->state; old->timer_type = params->newd->timer_type; old->update_time = new->update_time; params->success = true; return FATE_TIMER_SLOW; } log_err("We're out of sync: Incoming %s session entry %pI6c#%u|%pI6c#%u|%pI4#%u|%pI4#%u collides with DB entry %pI6c#%u|%pI6c#%u|%pI4#%u|%pI4#%u.", l4proto_to_string(new->proto), &new->src6.l3, new->src6.l4, &new->dst6.l3, new->dst6.l4, &new->src4.l3, new->src4.l4, &new->dst4.l3, new->dst4.l4, &old->src6.l3, old->src6.l4, &old->dst6.l3, old->dst6.l4, &old->src4.l3, old->src4.l4, &old->dst4.l3, old->dst4.l4); params->success = false; return FATE_PRESERVE; } static bool add_new_session(struct xlator *jool, struct joold_session *in) { struct add_params params; struct collision_cb cb = { .cb = collision_cb, .arg = ¶ms, }; int error; log_debug("Adding session!"); init_session_entry(in, ¶ms.new); params.newd = in; error = bib_add_session(jool, ¶ms.new, &cb); if (error == -EEXIST) return params.success; if (error) { log_err("sessiondb_add() threw unknown error code %d.", error); return false; } return true; } static int __validate_enabled(struct xlator *jool) { if (!GLOBALS(jool).enabled) { log_err("Session sync is disabled on this instance."); return -EINVAL; } return 0; } static int validate_enabled(struct xlator *jool) { spinlock_t *lock = &jool->nat64.joold->lock; int enabled; spin_lock_bh(lock); enabled = __validate_enabled(jool); spin_unlock_bh(lock); return enabled; } /** * joold_sync - Parses a bunch of sessions out of @data and adds them to @jool's * session database. * * This is the function that gets called whenever the jool daemon sends data to * the @jool Jool instance. */ int joold_sync(struct xlator *jool, void *data, __u32 data_len) { struct joold_session *session; unsigned int num_sessions; unsigned int i; int error; bool success; error = validate_enabled(jool); if (error) return error; if (data_len % sizeof(struct joold_session) != 0) { log_err("The Netlink packet seems corrupted."); return -EINVAL; } session = data; num_sessions = data_len / sizeof(struct joold_session); success = true; for (i = 0; i < num_sessions; i++, session++) success &= add_new_session(jool, session); log_debug("Added %u sessions.", i); return success ? 0 : -EINVAL; } int joold_test(struct xlator *jool) { struct nlcore_buffer buffer; struct request_hdr hdr; int error; error = validate_enabled(jool); if (error) return error; init_request_hdr(&hdr, XT_NAT64, MODE_JOOLD, OP_ADD, false); hdr.castness = 'm'; error = nlbuffer_init_request(&buffer, &hdr, 0); if (error) return error; error = nlcore_send_multicast_message(jool->ns, &buffer); nlbuffer_clean(&buffer); return error; } static int add_advertise_node(struct joold_queue *queue, l4_protocol proto) { struct joold_node *node; node = wkmem_cache_alloc("joold node", node_cache, GFP_ATOMIC); if (!node) { log_err("Out of memory."); return -ENOMEM; } node->is_group = true; memset(&node->group.offset, 0, sizeof(node->group.offset)); node->group.offset_set = false; node->group.proto = proto; list_add_tail(&node->nextprev, &queue->sessions); queue->count++; queue->advertisement_count++; return 0; } static int prepare_advertisement(struct joold_queue *queue) { int error; error = add_advertise_node(queue, L4PROTO_TCP); if (error) return error; error = add_advertise_node(queue, L4PROTO_UDP); if (error) return error; return add_advertise_node(queue, L4PROTO_ICMP); } int joold_advertise(struct xlator *jool) { struct joold_queue *queue = jool->nat64.joold; struct joold_buffer buffer = JOOLD_BUFFER_INIT; int error; spin_lock_bh(&queue->lock); error = __validate_enabled(jool); if (error) goto end; error = prepare_advertisement(queue); if (error) goto end; send_to_userspace_prepare(jool, &buffer); /* Fall through */ end: spin_unlock_bh(&queue->lock); send_to_userspace(&buffer, jool->ns); return error; } void joold_ack(struct xlator *jool) { struct joold_queue *queue = jool->nat64.joold; struct joold_buffer buffer = JOOLD_BUFFER_INIT; spin_lock_bh(&queue->lock); if (__validate_enabled(jool)) goto end; queue->ack_received = true; send_to_userspace_prepare(jool, &buffer); /* Fall through */ end: spin_unlock_bh(&queue->lock); send_to_userspace(&buffer, jool->ns); } /** * Called every now and then to flush the queue in case nodes have been queued, * the deadline is in the past and no new packets have triggered a flush. * It's just a last-resort attempt to prevent nodes from lingering here for too * long that's generally only useful in non-flush-asap mode. */ void joold_clean(struct xlator *jool) { spinlock_t *lock = &jool->nat64.joold->lock; struct joold_buffer buffer = JOOLD_BUFFER_INIT; spin_lock_bh(lock); if (!GLOBALS(jool).enabled) goto end; send_to_userspace_prepare(jool, &buffer); /* Fall through */ end: spin_unlock_bh(lock); send_to_userspace(&buffer, jool->ns); } jool-4.0.7/src/mod/common/global-impl.c0000664000175000017500000000662313576247347014642 00000000000000#include "common/globals.h" #include #include "mod/common/address.h" #include "mod/common/log.h" static int validate_uint(struct global_field *field, unsigned int value) { if (value < field->min) { log_err("%u is too small for the range of %s [%llu-%llu].", value, field->name, field->min, field->max); return -EINVAL; } if (value > field->max) { log_err("%u is too big for the range of %s [%llu-%llu].", value, field->name, field->min, field->max); return -EINVAL; } return 0; } int validate_u8(struct global_field *field, void *value, bool force) { __u8 value8 = *((__u8 *)value); return validate_uint(field, value8); } int validate_u32(struct global_field *field, void *value, bool force) { __u32 value32 = *((__u32 *)value); return validate_uint(field, value32); } static int validate_pool6_len(__u8 len) { if (len == 32 || len == 40 || len == 48) return 0; if (len == 56 || len == 64 || len == 96) return 0; log_err("%u is not a valid prefix length (32, 40, 48, 56, 64, 96).", len); return -EINVAL; } static int validate_ubit(struct ipv6_prefix *prefix, config_bool force) { if (force || !prefix->addr.s6_addr[8]) return 0; log_err("The u-bit is nonzero; see https://github.com/NICMx/Jool/issues/174.\n" "Will cancel the operation. Use --force to override this."); return -EINVAL; } int validate_pool6(struct global_field *field, void *value, bool force) { struct config_prefix6 *prefix = value; int error; if (!prefix->set) return 0; error = prefix6_validate(&prefix->prefix); if (error) return error; error = validate_pool6_len(prefix->prefix.len); if (error) return error; return validate_ubit(&prefix->prefix, force); } static int u16_compare(const void *a, const void *b) { return *(__u16 *)b - *(__u16 *)a; } static void u16_swap(void *a, void *b, int size) { __u16 t = *(__u16 *)a; *(__u16 *)a = *(__u16 *)b; *(__u16 *)b = t; } int validate_plateaus(struct global_field *field, void *value, bool force) { struct mtu_plateaus *plateaus = value; __u16 *values = plateaus->values; unsigned int i, j; /* Sort descending. */ sort(values, plateaus->count, sizeof(*values), u16_compare, u16_swap); /* Remove zeroes and duplicates. */ for (i = 0, j = 1; j < plateaus->count; j++) { if (values[j] == 0) break; if (values[i] != values[j]) { i++; values[i] = values[j]; } } if (values[0] == 0) { log_err("The MTU list contains nothing but zeroes."); return -EINVAL; } /* Update. */ plateaus->count = i + 1; return 0; } int validate_prefix6(struct global_field *field, void *value, bool force) { struct config_prefix6 *prefix = value; return prefix->set ? prefix6_validate(&prefix->prefix) : 0; } int validate_prefix4(struct global_field *field, void *value, bool force) { struct config_prefix4 *prefix = value; return prefix->set ? prefix4_validate(&prefix->prefix) : 0; } int validate_prefix6791v4(struct global_field *field, void *value, bool force) { struct config_prefix4 *prefix = value; int error; if (!prefix->set) return 0; error = prefix4_validate(&prefix->prefix); if (error) return error; return prefix4_validate_scope(&prefix->prefix, force); } int validate_hairpin_mode(struct global_field *field, void *_value, bool force) { __u8 value = *((__u8 *)_value); if (value == EHM_OFF || value == EHM_SIMPLE || value == EHM_INTRINSIC) return 0; log_err("Unknown hairpinning mode: %u", value); return -EINVAL; } jool-4.0.7/src/mod/common/init.c0000664000175000017500000000635413576247347013407 00000000000000#include "mod/common/init.h" #include #include "mod/common/joold.h" #include "mod/common/log.h" #include "mod/common/timer.h" #include "mod/common/xlator.h" #include "mod/common/db/bib/db.h" #include "mod/common/db/pool4/rfc6056.h" #include "mod/common/nl/nl_handler.h" MODULE_LICENSE(JOOL_LICENSE); MODULE_AUTHOR("NIC-ITESM"); MODULE_DESCRIPTION("IP/ICMP Translation (Core)"); MODULE_VERSION(JOOL_VERSION_STR); static unsigned int siit_refs = 0; static unsigned int nat64_refs = 0; static DEFINE_MUTEX(lock); static int setup_common_modules(void) { int error; log_debug("Initializing common modules."); error = xlator_setup(); if (error) goto xlator_fail; error = xlation_setup(); if (error) goto xlation_fail; error = nlhandler_setup(); if (error) goto nlhandler_fail; return 0; nlhandler_fail: xlation_teardown(); xlation_fail: xlator_teardown(); xlator_fail: return error; } static void teardown_common_modules(void) { log_debug("Tearing down common modules."); nlhandler_teardown(); xlation_teardown(); xlator_teardown(); } static int setup_nat64_modules(void (*defrag_enable)(struct net *ns)) { int error; log_debug("Initializing NAT64 modules."); error = bib_setup(); if (error) goto bib_fail; error = joold_setup(); if (error) goto joold_fail; error = rfc6056_setup(); if (error) goto rfc6056_fail; error = jtimer_setup(); if (error) goto jtimer_fail; xlator_set_defrag(defrag_enable); return 0; jtimer_fail: rfc6056_teardown(); rfc6056_fail: joold_teardown(); joold_fail: bib_teardown(); bib_fail: return error; } static void teardown_nat64_modules(void) { log_debug("Tearing down NAT64 modules."); jtimer_teardown(); rfc6056_teardown(); joold_teardown(); bib_teardown(); } int jool_siit_get(void) { mutex_lock(&lock); siit_refs++; mutex_unlock(&lock); return 0; } EXPORT_SYMBOL_GPL(jool_siit_get); void jool_siit_put(void) { mutex_lock(&lock); if (!WARN(siit_refs == 0, "Too many jool_siit_put()s!")) siit_refs--; mutex_unlock(&lock); } EXPORT_SYMBOL_GPL(jool_siit_put); int jool_nat64_get(void (*defrag_enable)(struct net *ns)) { int error = 0; mutex_lock(&lock); nat64_refs++; if (nat64_refs == 1) error = setup_nat64_modules(defrag_enable); mutex_unlock(&lock); return error; } EXPORT_SYMBOL_GPL(jool_nat64_get); void jool_nat64_put(void) { mutex_lock(&lock); if (WARN(nat64_refs == 0, "Too many jool_nat64_put()s!")) goto end; nat64_refs--; if (nat64_refs == 0) teardown_nat64_modules(); end: mutex_unlock(&lock); } EXPORT_SYMBOL_GPL(jool_nat64_put); bool is_siit_enabled(void) { int refs; mutex_lock(&lock); refs = siit_refs; mutex_unlock(&lock); return !!refs; } bool is_nat64_enabled(void) { int refs; mutex_lock(&lock); refs = nat64_refs; mutex_unlock(&lock); return !!refs; } static int __init jool_init(void) { int error; log_debug("Inserting Core Jool..."); error = setup_common_modules(); if (error) return error; log_info("Core Jool v" JOOL_VERSION_STR " module inserted."); return 0; } static void __exit jool_exit(void) { teardown_common_modules(); #ifdef JKMEMLEAK wkmalloc_print_leaks(); wkmalloc_teardown(); #endif log_info("Core Jool v" JOOL_VERSION_STR " module removed."); } module_init(jool_init); module_exit(jool_exit); jool-4.0.7/src/mod/common/core.h0000664000175000017500000000107113576247347013370 00000000000000#ifndef SRC_MOD_COMMON_CORE_H_ #define SRC_MOD_COMMON_CORE_H_ /** * @file * The core is the packet handling's entry point. */ #include #include "mod/common/translation_state.h" /** * Assumes @skb is an IPv6 packet, and attempts to translate and send its IPv4 * counterpart. */ verdict core_6to4(struct sk_buff *skb, struct xlation *state); /** * Assumes @skb is an IPv4 packet, and attempts to translate and send its IPv4 * counterpart. */ verdict core_4to6(struct sk_buff *skb, struct xlation *state); #endif /* SRC_MOD_COMMON_CORE_H_ */ jool-4.0.7/src/mod/common/rfc7915/0000775000175000017500000000000013576247347013450 500000000000000jool-4.0.7/src/mod/common/rfc7915/4to6.c0000664000175000017500000006344613576247347014345 00000000000000#include "mod/common/rfc7915/4to6.h" #include #include "common/config.h" #include "common/constants.h" #include "mod/common/address_xlat.h" #include "mod/common/icmp_wrapper.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/rfc6052.h" #include "mod/common/route.h" #include "mod/common/stats.h" #include "mod/common/db/rfc6791v6.h" verdict ttp46_alloc_skb(struct xlation *state) { struct packet *in = &state->in; int delta; struct sk_buff *out; struct iphdr *hdr4_inner; struct frag_hdr *hdr_frag; struct skb_shared_info *shinfo; int error; /* * These are my assumptions to compute total_len: * * The IPv4 header will be replaced by a IPv6 header and possibly a * fragment header. * (we will reserve room for this fragment header even if we don't * use it, just in case the kernel wants to do something with it * later.) * The L4 header will never change in size * (in particular, ICMPv4 hdr len == ICMPv6 hdr len). * The payload will not change in TCP, UDP and ICMP infos. * * As for ICMP errors: * The IPv4 header will be replaced by an IPv6 header and possibly a * fragment header. * The sub-L4 header will never change in size. * The subpayload will never change in size (by us). */ /* Calculate the "delta" - the amount the packet might grow in size. */ delta = sizeof(struct ipv6hdr) - pkt_l3hdr_len(in) + sizeof(struct frag_hdr); if (is_first_frag4(pkt_ip4_hdr(in)) && pkt_is_icmp4_error(in)) { hdr4_inner = pkt_payload(in); delta += sizeof(struct ipv6hdr) - (hdr4_inner->ihl << 2); if (will_need_frag_hdr(hdr4_inner)) delta += sizeof(struct frag_hdr); } /* * Do not shrink under any circumstances because I'm not sure what * happens when headroom is negative. */ if (delta < 0) delta = 0; /* Allocate the outgoing packet as a copy of @in with shared pages. */ out = __pskb_copy(in->skb, delta + skb_headroom(in->skb), GFP_ATOMIC); if (!out) { log_debug("__pskb_copy() returned NULL."); return drop(state, JSTAT46_PSKB_COPY); } /* https://github.com/NICMx/Jool/issues/289 */ #if LINUX_VERSION_AT_LEAST(5, 4, 0, 9999, 0) nf_reset_ct(out); #else nf_reset(out); #endif /* Remove outer l3 and l4 headers from the copy. */ skb_pull(out, pkt_hdrs_len(in)); if (is_first_frag4(pkt_ip4_hdr(in)) && pkt_is_icmp4_error(in)) { hdr4_inner = pkt_payload(in); /* Remove inner l3 headers from the copy. */ skb_pull(out, hdr4_inner->ihl << 2); /* Add inner l3 headers to the copy. */ if (will_need_frag_hdr(hdr4_inner)) skb_push(out, sizeof(struct frag_hdr)); skb_push(out, sizeof(struct ipv6hdr)); } /* Add outer l4 headers to the copy. */ skb_push(out, pkt_l4hdr_len(in)); /* Add outer l3 headers to the copy. */ if (will_need_frag_hdr(pkt_ip4_hdr(in))) skb_push(out, sizeof(struct frag_hdr)); skb_push(out, sizeof(struct ipv6hdr)); /* Prevent Linux from dropping or fragmenting ICMP errors. */ if (pkt_is_icmp4_error(in)) { error = pskb_trim(out, 1280); if (error) { log_debug("pskb_trim() returned errcode %d.", error); return drop(state, JSTAT_ENOMEM); } } skb_reset_mac_header(out); skb_reset_network_header(out); if (will_need_frag_hdr(pkt_ip4_hdr(in))) { hdr_frag = (struct frag_hdr *)(skb_network_header(out) + sizeof(struct ipv6hdr)); skb_set_transport_header(out, sizeof(struct ipv6hdr) + sizeof(struct frag_hdr)); } else { hdr_frag = NULL; skb_set_transport_header(out, sizeof(struct ipv6hdr)); } /* Wrap up. */ pkt_fill(&state->out, out, L3PROTO_IPV6, pkt_l4_proto(in), hdr_frag, skb_transport_header(out) + pkt_l4hdr_len(in), pkt_original_pkt(in)); memset(out->cb, 0, sizeof(out->cb)); out->mark = in->skb->mark; out->protocol = htons(ETH_P_IPV6); shinfo = skb_shinfo(out); if (shinfo->gso_type & SKB_GSO_TCPV4) { shinfo->gso_type &= ~SKB_GSO_TCPV4; shinfo->gso_type |= SKB_GSO_TCPV6; } return VERDICT_CONTINUE; } /* * Yes, this is very different from the RFC's "Total length value from the IPv4 * header, minus the size of the IPv4 header and IPv4 options, if present." * This is because we need to account for lots of quirks (mostly from Linux). */ static __be16 build_payload_len(struct packet *in, struct packet *out) { /* See build_tot_len() for relevant comments. */ __u16 total_len; if (pkt_is_inner(out)) { /* Internal packets */ total_len = be16_to_cpu(pkt_ip4_hdr(in)->tot_len) - pkt_hdrs_len(in) + pkt_hdrs_len(out); } else if (skb_shinfo(in->skb)->frag_list) { /* Fake full packets */ total_len = in->skb->len - pkt_hdrs_len(in) + pkt_hdrs_len(out); } else { /* Real full packets and fragmented packets */ total_len = out->skb->len; /* * Though ICMPv4 errors are supposed to be max 576 bytes long, * a good portion of the Internet seems prepared against bigger * ICMPv4 errors. Thus, the resulting ICMPv6 packet might have * a smaller payload than the original packet even though * IPv4 MTU < IPv6 MTU. */ if (pkt_is_icmp6_error(out) && total_len > IPV6_MIN_MTU) total_len = IPV6_MIN_MTU; } /* (Subsequent fragments don't reach this function) */ return cpu_to_be16(total_len - sizeof(struct ipv6hdr)); } static int generate_saddr6_nat64(struct xlation *state) { struct globals *cfg; struct packet *out = &state->out; struct in_addr tmp; cfg = &state->jool.globals; if (cfg->nat64.src_icmp6errs_better && pkt_is_icmp4_error(&state->in)) { /* Issue #132 behaviour. */ tmp.s_addr = pkt_ip4_hdr(&state->in)->saddr; return __rfc6052_4to6(&cfg->pool6.prefix, &tmp, &pkt_ip6_hdr(out)->saddr); } /* RFC 6146 behaviour. */ pkt_ip6_hdr(out)->saddr = out->tuple.src.addr6.l3; return 0; } static bool disable_src_eam(struct packet *in, bool hairpin) { struct iphdr *inner_hdr; if (!hairpin || pkt_is_inner(in)) return false; if (!pkt_is_icmp4_error(in)) return true; inner_hdr = pkt_payload(in); return pkt_ip4_hdr(in)->saddr == inner_hdr->daddr; } static bool disable_dst_eam(struct packet *in, bool hairpin) { return hairpin && pkt_is_inner(in); } static verdict translate_addrs46_siit(struct xlation *state) { struct packet *in = &state->in; struct iphdr *hdr4 = pkt_ip4_hdr(in); struct ipv6hdr *hdr6 = pkt_ip6_hdr(&state->out); bool hairpin; bool enable_blacklist; struct result_addrxlat46 out; struct addrxlat_result result; hairpin = (state->jool.globals.siit.eam_hairpin_mode == EHM_SIMPLE) || pkt_is_intrinsic_hairpin(in); enable_blacklist = !pkt_is_icmp4_error(in); /* Src address. */ result = addrxlat_siit46(&state->jool, hdr4->saddr, &out, !disable_src_eam(in, hairpin), enable_blacklist); if (result.reason) log_debug("%s.", result.reason); switch (result.verdict) { case ADDRXLAT_CONTINUE: break; case ADDRXLAT_TRY_SOMETHING_ELSE: if (pkt_is_icmp4_error(in) && !rfc6791v6_find(state, &out.addr)) { out.entry.method = AXM_RFC6791; break; /* Ok, success. */ } return untranslatable(state, JSTAT46_SRC); case ADDRXLAT_ACCEPT: return untranslatable(state, JSTAT46_SRC); case ADDRXLAT_DROP: return drop(state, JSTAT_UNKNOWN); } hdr6->saddr = out.addr; /* Dst address. */ result = addrxlat_siit46(&state->jool, hdr4->daddr, &out, !disable_dst_eam(in, hairpin), enable_blacklist); if (result.reason) log_debug("%s.", result.reason); switch (result.verdict) { case ADDRXLAT_CONTINUE: hdr6->daddr = out.addr; break; case ADDRXLAT_TRY_SOMETHING_ELSE: return untranslatable(state, JSTAT46_DST); case ADDRXLAT_ACCEPT: return untranslatable(state, JSTAT46_DST); case ADDRXLAT_DROP: return drop(state, JSTAT_UNKNOWN); } log_debug("Result: %pI6c->%pI6c", &hdr6->saddr, &hdr6->daddr); return VERDICT_CONTINUE; } /** * Returns "true" if "hdr" contains a source route option and the last address * from it hasn't been reached. * * Assumes the options are glued in memory after "hdr", the way sk_buffs work * (when linearized or pullable). */ static bool has_unexpired_src_route(struct iphdr *hdr) { unsigned char *current_opt, *end_of_opts; __u8 src_route_len, src_route_ptr; /* Find a loose source route or a strict source route option. */ current_opt = (unsigned char *)(hdr + 1); end_of_opts = ((unsigned char *)hdr) + (4 * hdr->ihl); if (current_opt >= end_of_opts) return false; while (current_opt[0] != IPOPT_LSRR && current_opt[0] != IPOPT_SSRR) { switch (current_opt[0]) { case IPOPT_END: return false; case IPOPT_NOOP: current_opt++; break; default: /* * IPOPT_SEC, IPOPT_RR, IPOPT_SID, IPOPT_TIMESTAMP, * IPOPT_CIPSO and IPOPT_RA are known to fall through * here. */ current_opt += current_opt[1]; break; } if (current_opt >= end_of_opts) return false; } /* Finally test. */ src_route_len = current_opt[1]; src_route_ptr = current_opt[2]; return src_route_len >= src_route_ptr; } /** * One-liner for creating the Identification field of the IPv6 Fragment header. */ static inline __be32 build_id_field(struct iphdr *hdr4) { return cpu_to_be32(be16_to_cpu(hdr4->id)); } /** * Infers a IPv6 header from "in"'s IPv4 header and "tuple". Places the result * in "out"->l3_hdr. * This is RFC 7915 section 4.1. * * This is used to translate both outer and inner headers. */ verdict ttp46_ipv6(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; struct iphdr *hdr4 = pkt_ip4_hdr(in); struct ipv6hdr *hdr6 = pkt_ip6_hdr(out); verdict result; /* Translate the address first because of issue #167. */ if (xlation_is_nat64(state)) { if (generate_saddr6_nat64(state)) return drop(state, JSTAT46_SRC); hdr6->daddr = out->tuple.dst.addr6.l3; } else { result = translate_addrs46_siit(state); if (result != VERDICT_CONTINUE) return result; } hdr6->version = 6; if (state->jool.globals.reset_traffic_class) { hdr6->priority = 0; hdr6->flow_lbl[0] = 0; } else { hdr6->priority = hdr4->tos >> 4; hdr6->flow_lbl[0] = hdr4->tos << 4; } hdr6->flow_lbl[1] = 0; hdr6->flow_lbl[2] = 0; hdr6->payload_len = build_payload_len(in, out); hdr6->nexthdr = (hdr4->protocol == IPPROTO_ICMP) ? NEXTHDR_ICMP : hdr4->protocol; if (pkt_is_outer(in) && !pkt_is_intrinsic_hairpin(in)) { if (hdr4->ttl <= 1) { log_debug("Packet's TTL <= 1."); return drop_icmp(state, JSTAT46_TTL, ICMPERR_TTL, 0); } hdr6->hop_limit = hdr4->ttl - 1; } else { hdr6->hop_limit = hdr4->ttl; } if (pkt_is_outer(in) && has_unexpired_src_route(hdr4)) { log_debug("Packet has an unexpired source route."); return drop_icmp(state, JSTAT46_SRC_ROUTE, ICMPERR_SRC_ROUTE, 0); } if (will_need_frag_hdr(hdr4)) { struct frag_hdr *frag_header = (struct frag_hdr *)(hdr6 + 1); /* Override some fixed header fields... */ hdr6->nexthdr = NEXTHDR_FRAGMENT; /* ...and set the fragment header ones. */ frag_header->nexthdr = (hdr4->protocol == IPPROTO_ICMP) ? NEXTHDR_ICMP : hdr4->protocol; frag_header->reserved = 0; frag_header->frag_off = build_ipv6_frag_off_field( get_fragment_offset_ipv4(hdr4), is_mf_set_ipv4(hdr4)); frag_header->identification = build_id_field(hdr4); } return VERDICT_CONTINUE; } /** * One liner for creating the ICMPv6 header's MTU field. * Returns the smallest out of the three first parameters. It also handles some * quirks. See comments inside for more info. */ static __be32 icmp6_minimum_mtu(struct xlation *state, unsigned int packet_mtu, unsigned int nexthop6_mtu, unsigned int nexthop4_mtu, __u16 tot_len_field) { __u32 result; if (packet_mtu == 0) { /* * Some router does not implement RFC 1191. * Got to determine a likely path MTU. * See RFC 1191 sections 5, 7 and 7.1. */ __u16 *plateaus = state->jool.globals.plateaus.values; __u16 count = state->jool.globals.plateaus.count; int i; for (i = 0; i < count; i++) { if (plateaus[i] < tot_len_field) { packet_mtu = plateaus[i]; break; } } } /* Here's the core comparison. */ result = min(packet_mtu + 20, min(nexthop6_mtu, nexthop4_mtu + 20)); if (result < IPV6_MIN_MTU) result = IPV6_MIN_MTU; return cpu_to_be32(result); } static verdict compute_mtu6(struct xlation *state) { struct icmp6hdr *out_icmp = pkt_icmp6_hdr(&state->out); #ifndef UNIT_TESTING struct dst_entry *out_dst; struct iphdr *hdr4; struct icmphdr *in_icmp = pkt_icmp4_hdr(&state->in); unsigned int in_mtu; out_dst = route6(state->jool.ns, &state->out); if (!out_dst) return drop(state, JSTAT_FAILED_ROUTES); /* * 0xfffffff is intended for hairpinning (there's no IPv4 device on * hairpinning). */ in_mtu = state->in.skb->dev ? state->in.skb->dev->mtu : 0xfffffff; log_debug("Packet MTU: %u", be16_to_cpu(in_icmp->un.frag.mtu)); log_debug("In dev MTU: %u", in_mtu); log_debug("Out dev MTU: %u", out_dst->dev->mtu); /* * We want the length of the packet that couldn't get through, * not the truncated one. */ hdr4 = pkt_payload(&state->in); out_icmp->icmp6_mtu = icmp6_minimum_mtu(state, be16_to_cpu(in_icmp->un.frag.mtu), out_dst->dev->mtu, in_mtu, be16_to_cpu(hdr4->tot_len)); log_debug("Resulting MTU: %u", be32_to_cpu(out_icmp->icmp6_mtu)); #else out_icmp->icmp6_mtu = icmp6_minimum_mtu(state, 9999, 1500, 9999, 100); #endif return VERDICT_CONTINUE; } /** * One-liner for translating "Destination Unreachable" messages from ICMPv4 to * ICMPv6. */ static verdict icmp4_to_icmp6_dest_unreach(struct xlation *state) { struct icmphdr *icmp4_hdr = pkt_icmp4_hdr(&state->in); struct icmp6hdr *icmp6_hdr = pkt_icmp6_hdr(&state->out); icmp6_hdr->icmp6_type = ICMPV6_DEST_UNREACH; icmp6_hdr->icmp6_unused = 0; switch (icmp4_hdr->code) { case ICMP_NET_UNREACH: case ICMP_HOST_UNREACH: case ICMP_SR_FAILED: case ICMP_NET_UNKNOWN: case ICMP_HOST_UNKNOWN: case ICMP_HOST_ISOLATED: case ICMP_NET_UNR_TOS: case ICMP_HOST_UNR_TOS: icmp6_hdr->icmp6_code = ICMPV6_NOROUTE; return VERDICT_CONTINUE; case ICMP_PROT_UNREACH: icmp6_hdr->icmp6_type = ICMPV6_PARAMPROB; icmp6_hdr->icmp6_code = ICMPV6_UNK_NEXTHDR; icmp6_hdr->icmp6_pointer = cpu_to_be32(offsetof(struct ipv6hdr, nexthdr)); return VERDICT_CONTINUE; case ICMP_PORT_UNREACH: icmp6_hdr->icmp6_code = ICMPV6_PORT_UNREACH; return VERDICT_CONTINUE; case ICMP_FRAG_NEEDED: icmp6_hdr->icmp6_type = ICMPV6_PKT_TOOBIG; icmp6_hdr->icmp6_code = 0; return compute_mtu6(state); case ICMP_NET_ANO: case ICMP_HOST_ANO: case ICMP_PKT_FILTERED: case ICMP_PREC_CUTOFF: icmp6_hdr->icmp6_code = ICMPV6_ADM_PROHIBITED; return VERDICT_CONTINUE; } /* hostPrecedenceViolation (14) is known to fall through here. */ log_debug("ICMPv4 messages type %u code %u lack an ICMPv6 counterpart.", icmp4_hdr->type, icmp4_hdr->code); /* No ICMP error. */ return drop(state, JSTAT46_UNTRANSLATABLE_DEST_UNREACH); } /** * One-liner for translating "Parameter Problem" messages from ICMPv4 to ICMPv6. */ static verdict icmp4_to_icmp6_param_prob(struct xlation *state) { #define DROP 255 static const __u8 ptrs[] = { 0, 1, 4, 4, DROP, DROP, DROP, DROP, 7, 6, DROP, DROP, 8, 8, 8, 8, 24, 24, 24, 24 }; struct icmphdr *icmp4_hdr = pkt_icmp4_hdr(&state->in); struct icmp6hdr *icmp6_hdr = pkt_icmp6_hdr(&state->out); __u8 ptr; icmp6_hdr->icmp6_type = ICMPV6_PARAMPROB; switch (icmp4_hdr->code) { case ICMP_PTR_INDICATES_ERROR: case ICMP_BAD_LENGTH: { ptr = be32_to_cpu(icmp4_hdr->icmp4_unused) >> 24; if (19 < ptr || ptrs[ptr] == DROP) { log_debug("ICMPv4 messages type %u code %u pointer %u lack an ICMPv6 counterpart.", icmp4_hdr->type, icmp4_hdr->code, ptr); return drop(state, JSTAT46_UNTRANSLATABLE_PARAM_PROBLEM_PTR); } icmp6_hdr->icmp6_code = ICMPV6_HDR_FIELD; icmp6_hdr->icmp6_pointer = cpu_to_be32(ptrs[ptr]); return VERDICT_CONTINUE; } } /* missingARequiredOption (1) is known to fall through here. */ log_debug("ICMPv4 messages type %u code %u lack an ICMPv6 counterpart.", icmp4_hdr->type, icmp4_hdr->code); /* No ICMP error. */ return drop(state, JSTAT46_UNTRANSLATABLE_PARAM_PROB); } static void update_icmp6_csum(struct xlation *state) { struct ipv6hdr *out_ip6 = pkt_ip6_hdr(&state->out); struct icmphdr *in_icmp = pkt_icmp4_hdr(&state->in); struct icmp6hdr *out_icmp = pkt_icmp6_hdr(&state->out); struct icmphdr copy_hdr; __wsum csum; out_icmp->icmp6_cksum = 0; csum = ~csum_unfold(in_icmp->checksum); memcpy(©_hdr, in_icmp, sizeof(*in_icmp)); copy_hdr.checksum = 0; csum = csum_sub(csum, csum_partial(©_hdr, sizeof(copy_hdr), 0)); csum = csum_add(csum, csum_partial(out_icmp, sizeof(*out_icmp), 0)); out_icmp->icmp6_cksum = csum_ipv6_magic(&out_ip6->saddr, &out_ip6->daddr, pkt_datagram_len(&state->in), IPPROTO_ICMPV6, csum); } static void compute_icmp6_csum(struct packet *out) { struct ipv6hdr *out_ip6 = pkt_ip6_hdr(out); struct icmp6hdr *out_icmp = pkt_icmp6_hdr(out); __wsum csum; /* * This function only gets called for ICMP error checksums, so * pkt_datagram_len() is fine. */ out_icmp->icmp6_cksum = 0; csum = skb_checksum(out->skb, skb_transport_offset(out->skb), pkt_datagram_len(out), 0); out_icmp->icmp6_cksum = csum_ipv6_magic(&out_ip6->saddr, &out_ip6->daddr, pkt_datagram_len(out), IPPROTO_ICMPV6, csum); out->skb->ip_summed = CHECKSUM_NONE; } static verdict validate_icmp4_csum(struct xlation *state) { struct packet *in = &state->in; __sum16 csum; if (in->skb->ip_summed != CHECKSUM_NONE) return VERDICT_CONTINUE; csum = csum_fold(skb_checksum(in->skb, skb_transport_offset(in->skb), pkt_datagram_len(in), 0)); if (csum != 0) { log_debug("Checksum doesn't match."); return drop(state, JSTAT46_ICMP_CSUM); } return VERDICT_CONTINUE; } static verdict post_icmp6error(struct xlation *state) { verdict result; log_debug("Translating the inner packet (4->6)..."); /* * We will later recompute the checksum from scratch, but we should not * translate a corrupted ICMPv4 error into an OK-csum ICMPv6 one, * so validate first. */ result = validate_icmp4_csum(state); if (result != VERDICT_CONTINUE) return result; result = ttpcomm_translate_inner_packet(state); if (result != VERDICT_CONTINUE) return result; compute_icmp6_csum(&state->out); return VERDICT_CONTINUE; } /** * Translates in's icmp4 header and payload into out's icmp6 header and payload. * This is the RFC 7915 sections 4.2 and 4.3, except checksum (See post_icmp6()). */ verdict ttp46_icmp(struct xlation *state) { struct icmphdr *icmpv4_hdr = pkt_icmp4_hdr(&state->in); struct icmp6hdr *icmpv6_hdr = pkt_icmp6_hdr(&state->out); verdict result; icmpv6_hdr->icmp6_cksum = icmpv4_hdr->checksum; /* default. */ /* -- First the ICMP header. -- */ switch (icmpv4_hdr->type) { case ICMP_ECHO: icmpv6_hdr->icmp6_type = ICMPV6_ECHO_REQUEST; icmpv6_hdr->icmp6_code = 0; icmpv6_hdr->icmp6_dataun.u_echo.identifier = xlation_is_nat64(state) ? cpu_to_be16(state->out.tuple.icmp6_id) : icmpv4_hdr->un.echo.id; icmpv6_hdr->icmp6_sequence = icmpv4_hdr->un.echo.sequence; update_icmp6_csum(state); return VERDICT_CONTINUE; case ICMP_ECHOREPLY: icmpv6_hdr->icmp6_type = ICMPV6_ECHO_REPLY; icmpv6_hdr->icmp6_code = 0; icmpv6_hdr->icmp6_dataun.u_echo.identifier = xlation_is_nat64(state) ? cpu_to_be16(state->out.tuple.icmp6_id) : icmpv4_hdr->un.echo.id; icmpv6_hdr->icmp6_sequence = icmpv4_hdr->un.echo.sequence; update_icmp6_csum(state); return VERDICT_CONTINUE; case ICMP_DEST_UNREACH: result = icmp4_to_icmp6_dest_unreach(state); if (result != VERDICT_CONTINUE) return result; return post_icmp6error(state); case ICMP_TIME_EXCEEDED: icmpv6_hdr->icmp6_type = ICMPV6_TIME_EXCEED; icmpv6_hdr->icmp6_code = icmpv4_hdr->code; icmpv6_hdr->icmp6_unused = 0; return post_icmp6error(state); case ICMP_PARAMETERPROB: result = icmp4_to_icmp6_param_prob(state); if (result != VERDICT_CONTINUE) return result; return post_icmp6error(state); } /* * The following codes are known to fall through here: * Information Request/Reply (15, 16), Timestamp and Timestamp Reply * (13, 14), Address Mask Request/Reply (17, 18), Router Advertisement * (9), Router Solicitation (10), Source Quench (4), Redirect (5), * Alternative Host Address (6). * This time there's no ICMP error. */ log_debug("ICMPv4 messages type %u lack an ICMPv6 counterpart.", icmpv4_hdr->type); return drop(state, JSTAT_UNKNOWN_ICMP4_TYPE); } static __sum16 update_csum_4to6(__sum16 csum16, struct iphdr *in_ip4, void *in_l4_hdr, struct ipv6hdr *out_ip6, void *out_l4_hdr, size_t l4_hdr_len) { __wsum csum, pseudohdr_csum; /* See comments at update_csum_6to4(). */ csum = ~csum_unfold(csum16); pseudohdr_csum = csum_tcpudp_nofold(in_ip4->saddr, in_ip4->daddr, 0, 0, 0); csum = csum_sub(csum, pseudohdr_csum); csum = csum_sub(csum, csum_partial(in_l4_hdr, l4_hdr_len, 0)); pseudohdr_csum = ~csum_unfold(csum_ipv6_magic(&out_ip6->saddr, &out_ip6->daddr, 0, 0, 0)); csum = csum_add(csum, pseudohdr_csum); csum = csum_add(csum, csum_partial(out_l4_hdr, l4_hdr_len, 0)); return csum_fold(csum); } static __sum16 update_csum_4to6_partial(__sum16 csum16, struct iphdr *in4, struct ipv6hdr *out6) { __wsum csum, pseudohdr_csum; csum = csum_unfold(csum16); pseudohdr_csum = csum_tcpudp_nofold(in4->saddr, in4->daddr, 0, 0, 0); csum = csum_sub(csum, pseudohdr_csum); pseudohdr_csum = ~csum_unfold(csum_ipv6_magic(&out6->saddr, &out6->daddr, 0, 0, 0)); csum = csum_add(csum, pseudohdr_csum); return ~csum_fold(csum); } static bool can_compute_csum(struct xlation *state) { struct iphdr *hdr4; struct udphdr *hdr_udp; bool amend_csum0; if (xlation_is_nat64(state)) return true; /* * RFC 7915#4.5: * A stateless translator cannot compute the UDP checksum of * fragmented packets, so when a stateless translator receives the * first fragment of a fragmented UDP IPv4 packet and the checksum * field is zero, the translator SHOULD drop the packet and generate * a system management event that specifies at least the IP * addresses and port numbers in the packet. * * The "system management event" is outside. (See * JSTAT46_FRAGMENTED_ZERO_CSUM.) * It does not include the addresses/ports, which is OK because users * don't like it: https://github.com/NICMx/Jool/pull/129 */ hdr4 = pkt_ip4_hdr(&state->in); amend_csum0 = state->jool.globals.siit.compute_udp_csum_zero; if (is_mf_set_ipv4(hdr4) || !amend_csum0) { hdr_udp = pkt_udp_hdr(&state->in); log_debug("Dropping zero-checksum UDP packet: %pI4#%u->%pI4#%u", &hdr4->saddr, ntohs(hdr_udp->source), &hdr4->daddr, ntohs(hdr_udp->dest)); return false; } return true; } /** * Assumes that "out" is IPv6 and UDP, and computes and sets its l4-checksum. * This has to be done because the field is mandatory only in IPv6, so Jool has * to make up for lazy IPv4 nodes. * This is actually required in the Determine Incoming Tuple step, but it feels * more at home here. */ static int handle_zero_csum(struct xlation *state) { struct packet *in = &state->in; struct ipv6hdr *hdr6 = pkt_ip6_hdr(&state->out); struct udphdr *hdr_udp = pkt_udp_hdr(&state->out); __wsum csum; if (!can_compute_csum(state)) return -EINVAL; /* * Here's the deal: * We want to compute out's checksum. **out is a packet whose fragment * offset is zero**. * * Problem is, out's payload hasn't been translated yet. Because it can * be scattered through several fragments, moving this step would make * it look annoyingly out of place way later. * * Instead, we can exploit the fact that the translation does not affect * the UDP payload, so here's what we will actually include in the * checksum: * - out's pseudoheader (this will actually be summed last). * - out's UDP header. * - in's payload. * * That's the reason why we needed more than just the outgoing packet * as argument. */ csum = csum_partial(hdr_udp, sizeof(*hdr_udp), 0); csum = skb_checksum(in->skb, pkt_payload_offset(in), pkt_payload_len_pkt(in), csum); hdr_udp->check = csum_ipv6_magic(&hdr6->saddr, &hdr6->daddr, pkt_datagram_len(in), IPPROTO_UDP, csum); return 0; } verdict ttp46_tcp(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; struct tcphdr *tcp_in = pkt_tcp_hdr(in); struct tcphdr *tcp_out = pkt_tcp_hdr(out); struct tcphdr tcp_copy; /* Header */ memcpy(tcp_out, tcp_in, pkt_l4hdr_len(in)); if (xlation_is_nat64(state)) { tcp_out->source = cpu_to_be16(out->tuple.src.addr6.l4); tcp_out->dest = cpu_to_be16(out->tuple.dst.addr6.l4); } /* Header.checksum */ if (in->skb->ip_summed != CHECKSUM_PARTIAL) { memcpy(&tcp_copy, tcp_in, sizeof(*tcp_in)); tcp_copy.check = 0; tcp_out->check = 0; tcp_out->check = update_csum_4to6(tcp_in->check, pkt_ip4_hdr(in), &tcp_copy, pkt_ip6_hdr(out), tcp_out, sizeof(*tcp_out)); } else { tcp_out->check = update_csum_4to6_partial(tcp_in->check, pkt_ip4_hdr(in), pkt_ip6_hdr(out)); partialize_skb(out->skb, offsetof(struct tcphdr, check)); } return VERDICT_CONTINUE; } verdict ttp46_udp(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; struct udphdr *udp_in = pkt_udp_hdr(in); struct udphdr *udp_out = pkt_udp_hdr(out); struct udphdr udp_copy; /* Header */ memcpy(udp_out, udp_in, pkt_l4hdr_len(in)); if (xlation_is_nat64(state)) { udp_out->source = cpu_to_be16(out->tuple.src.addr6.l4); udp_out->dest = cpu_to_be16(out->tuple.dst.addr6.l4); } /* Header.checksum */ if (udp_in->check != 0) { if (in->skb->ip_summed != CHECKSUM_PARTIAL) { memcpy(&udp_copy, udp_in, sizeof(*udp_in)); udp_copy.check = 0; udp_out->check = 0; udp_out->check = update_csum_4to6(udp_in->check, pkt_ip4_hdr(in), &udp_copy, pkt_ip6_hdr(out), udp_out, sizeof(*udp_out)); } else { udp_out->check = update_csum_4to6_partial(udp_in->check, pkt_ip4_hdr(in), pkt_ip6_hdr(out)); partialize_skb(out->skb, offsetof(struct udphdr, check)); } } else { /* * TODO (performance) handling this as partial might work just * as well, or better. */ if (handle_zero_csum(state)) { return drop_icmp(state, JSTAT46_FRAGMENTED_ZERO_CSUM, ICMPERR_FILTER, 0); } } return VERDICT_CONTINUE; } jool-4.0.7/src/mod/common/rfc7915/6to4.c0000664000175000017500000006110513576247347014333 00000000000000#include "mod/common/rfc7915/6to4.h" #include #include "common/config.h" #include "mod/common/address_xlat.h" #include "mod/common/icmp_wrapper.h" #include "mod/common/ipv6_hdr_iterator.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/stats.h" #include "mod/common/route.h" #include "mod/common/rfc7915/common.h" #include "mod/common/db/eam.h" #include "mod/common/db/rfc6791v4.h" verdict ttp64_alloc_skb(struct xlation *state) { struct packet *in = &state->in; struct sk_buff *out; struct skb_shared_info *shinfo; int error; /* * I'm going to use __pskb_copy() (via pskb_copy()) because I need the * incoming and outgoing packets to share the same paged data. This is * not only for the sake of performance (prevents lots of data copying * and large contiguous skbs in memory) but also because the pages need * to survive the translation for GSO to work. * * Since the IPv4 version of the packet is going to be invariably * smaller than its IPv6 counterpart, you'd think we should reserve less * memory for it. But there's a problem: __pskb_copy() only allows us to * shrink the headroom; not the head. If we try to shrink the head * through the headroom and the v6 packet happens to have one too many * extension headers, the `headroom` we'll send to __pskb_copy() will be * negative, and then skb_copy_from_linear_data() will write onto the * tail area without knowing it. (I'm reading the Linux 4.4 code.) * * We will therefore *not* attempt to allocate less. */ out = pskb_copy(in->skb, GFP_ATOMIC); if (!out) { log_debug("pskb_copy() returned NULL."); return drop(state, JSTAT64_PSKB_COPY); } /* https://github.com/NICMx/Jool/issues/289 */ #if LINUX_VERSION_AT_LEAST(5, 4, 0, 9999, 0) nf_reset_ct(out); #else nf_reset(out); #endif /* Remove outer l3 and l4 headers from the copy. */ skb_pull(out, pkt_hdrs_len(in)); if (is_first_frag6(pkt_frag_hdr(in)) && pkt_is_icmp6_error(in)) { struct ipv6hdr *hdr = pkt_payload(in); struct hdr_iterator iterator = HDR_ITERATOR_INIT(hdr); hdr_iterator_last(&iterator); /* Remove inner l3 headers from the copy. */ skb_pull(out, iterator.data - (void *)hdr); /* Add inner l3 headers to the copy. */ skb_push(out, sizeof(struct iphdr)); } /* Add outer l4 headers to the copy. */ skb_push(out, pkt_l4hdr_len(in)); /* Add outer l3 headers to the copy. */ skb_push(out, sizeof(struct iphdr)); /* * According to my tests, if we send an ICMP error that exceeds the MTU, * Linux will either drop it (if out->skb->local_df is false) or * fragment it (if out->skb->local_df is true). * Neither of these possibilities is even remotely acceptable. * We'll maximize probablilty delivery by truncating to mandatory * minimum size. */ if (pkt_is_icmp6_error(in)) { /* * RFC1812 section 4.3.2.3. * (I'm using a literal because the RFC does.) * * pskb_trim() CAN CHANGE SKB POINTERS. */ error = pskb_trim(out, 576); if (error) { log_debug("pskb_trim() returned errcode %d.", error); return drop(state, JSTAT_ENOMEM); } } skb_reset_mac_header(out); skb_reset_network_header(out); skb_set_transport_header(out, sizeof(struct iphdr)); /* Wrap up. */ pkt_fill(&state->out, out, L3PROTO_IPV4, pkt_l4_proto(in), NULL, skb_transport_header(out) + pkt_l4hdr_len(in), pkt_original_pkt(in)); memset(out->cb, 0, sizeof(out->cb)); out->mark = in->skb->mark; out->protocol = htons(ETH_P_IP); shinfo = skb_shinfo(out); if (shinfo->gso_type & SKB_GSO_TCPV6) { shinfo->gso_type &= ~SKB_GSO_TCPV6; shinfo->gso_type |= SKB_GSO_TCPV4; } return VERDICT_CONTINUE; } __u8 ttp64_xlat_tos(struct globals *config, struct ipv6hdr *hdr) { return config->reset_tos ? config->new_tos : get_traffic_class(hdr); } /** * One-liner for creating the IPv4 header's Protocol field. */ __u8 ttp64_xlat_proto(struct ipv6hdr *hdr6) { struct hdr_iterator iterator = HDR_ITERATOR_INIT(hdr6); hdr_iterator_last(&iterator); return (iterator.hdr_type == NEXTHDR_ICMP) ? IPPROTO_ICMP : iterator.hdr_type; } /** * One-liner for creating the IPv4 header's Total Length field. */ static __be16 build_tot_len(struct packet *in, struct packet *out) { /* * Note: This comment is outdated. It is, in fact, talking about RFC * 6145. * * The RFC's equation is wrong, as the errata claims. * However, this still looks different than the fixed version because: * * - I don't know what all that ESP stuff is since ESP is not supposed * to be translated. * TODO (warning) actually, 6145bis defines semantics for ESP. * - ICMP error quirks the RFC doesn't account for: * * ICMPv6 errors are supposed to be max 1280 bytes. * ICMPv4 errors are supposed to be max 576 bytes. * Therefore, the resulting ICMP4 packet might have a smaller payload * than the original packet. * * This is further complicated by the kernel's fragmentation hacks; we * can't do "result = skb_len(out)" because the first fragment's tot_len * has to also cover the rest of the fragments... * * SIGH. */ __u16 total_len; if (pkt_is_inner(out)) { /* Internal packets */ total_len = get_tot_len_ipv6(in->skb) - pkt_hdrs_len(in) + pkt_hdrs_len(out); } else if (skb_shinfo(in->skb)->frag_list) { /* Fake full packets */ /* * This would also normally be "total_len = out->skb->len", but * out->skb->len is incomplete right now. */ total_len = in->skb->len - pkt_hdrs_len(in) + pkt_hdrs_len(out); } else { /* Real full packets and fragmented packets */ total_len = out->skb->len; if (pkt_is_icmp4_error(out) && total_len > 576) total_len = 576; } /* (Subsequent fragments don't reach this function.) */ return cpu_to_be16(total_len); } /** * One-liner for creating the IPv4 header's Identification field. */ static verdict generate_ipv4_id(struct xlation *state, struct iphdr *hdr4, struct frag_hdr *hdr_frag) { /* * We used to call get_random_bytes() instead of __ip_select_ident(). * The former is rather slow, so we didn't want to call it pointlessly. * That's the reason why we considered fragmentation prematurely. * * __ip_select_ident() is not as slow, but it can still take a little * more than a hundred nanoseconds. Also, it's a black box really. * So I decided to leave this if here. */ if (hdr_frag) { hdr4->id = cpu_to_be16(be32_to_cpu(hdr_frag->identification)); return VERDICT_CONTINUE; } #if LINUX_VERSION_AT_LEAST(4, 1, 0, 7, 3) __ip_select_ident(state->jool.ns, hdr4, 1); #elif LINUX_VERSION_AT_LEAST(3, 16, 0, 7, 3) __ip_select_ident(hdr4, 1); #else { struct dst_entry *dst; /* * Having a namespace, I need to get a dst so __ip_select_ident * can get the namespace. Kill me. * Can we drop support for kernels 3.15- please. */ dst = route4(state->jool.ns, &state->out); if (!dst) return drop(state, JSTAT_FAILED_ROUTES); __ip_select_ident(hdr4, dst, 1); } #endif return VERDICT_CONTINUE; } /** * One-liner for creating the IPv4 header's Dont Fragment flag. */ static bool generate_df_flag(struct packet *out) { unsigned int len; len = pkt_is_outer(out) ? pkt_len(out) : be16_to_cpu(pkt_ip4_hdr(out)->tot_len); return len > 1260; } static verdict translate_addrs64_siit(struct xlation *state) { struct ipv6hdr *hdr6 = pkt_ip6_hdr(&state->in); struct iphdr *hdr4 = pkt_ip4_hdr(&state->out); struct result_addrxlat64 src, dst; struct addrxlat_result result; /* Dst address. (SRC DEPENDS CON DST, SO WE NEED TO XLAT DST FIRST!) */ result = addrxlat_siit64(&state->jool, &hdr6->daddr, &dst); if (result.reason) log_debug("%s.", result.reason); switch (result.verdict) { case ADDRXLAT_CONTINUE: hdr4->daddr = dst.addr.s_addr; break; case ADDRXLAT_TRY_SOMETHING_ELSE: return untranslatable(state, JSTAT64_SRC); case ADDRXLAT_ACCEPT: return untranslatable(state, JSTAT64_SRC); case ADDRXLAT_DROP: return drop(state, JSTAT_UNKNOWN); } /* Src address. */ result = addrxlat_siit64(&state->jool, &hdr6->saddr, &src); if (result.reason) log_debug("%s.", result.reason); switch (result.verdict) { case ADDRXLAT_CONTINUE: break; case ADDRXLAT_TRY_SOMETHING_ELSE: if (pkt_is_icmp6_error(&state->in) && !rfc6791v4_find(state, &src.addr)) { src.entry.method = AXM_RFC6791; break; /* Ok, success. */ } return untranslatable(state, JSTAT64_DST); case ADDRXLAT_ACCEPT: return untranslatable(state, JSTAT64_DST); case ADDRXLAT_DROP: return drop(state, JSTAT_UNKNOWN); } hdr4->saddr = src.addr.s_addr; /* * Mark intrinsic hairpinning if it's going to be needed. * Why here? It's the only place where we know whether RFC 6052 was * involved. * See the EAM draft. */ if (state->jool.globals.siit.eam_hairpin_mode == EHM_INTRINSIC) { struct eam_table *eamt = state->jool.siit.eamt; /* Condition set A */ if (pkt_is_outer(&state->in) && !pkt_is_icmp6_error(&state->in) && (dst.entry.method == AXM_RFC6052) && eamt_contains4(eamt, hdr4->daddr)) { state->out.is_hairpin = true; /* Condition set B */ } else if (pkt_is_inner(&state->in) && (src.entry.method == AXM_RFC6052) && eamt_contains4(eamt, hdr4->saddr)) { state->out.is_hairpin = true; } } log_debug("Result: %pI4->%pI4", &hdr4->saddr, &hdr4->daddr); return VERDICT_CONTINUE; } /** * has_nonzero_segments_left - Returns true if @hdr6's packet has a routing * header, and its Segments Left field is not zero. * * @location: if the packet has nonzero segments left, the offset * of the segments left field (from the start of @hdr6) will be * stored here. */ static bool has_nonzero_segments_left(struct ipv6hdr *hdr6, __u32 *location) { struct ipv6_rt_hdr *rt_hdr; unsigned int offset; rt_hdr = hdr_iterator_find(hdr6, NEXTHDR_ROUTING); if (!rt_hdr) return false; if (rt_hdr->segments_left == 0) return false; offset = ((void *)rt_hdr) - (void *)hdr6; *location = offset + offsetof(struct ipv6_rt_hdr, segments_left); return true; } /** * Translates @state->in's IPv6 header into @state->out's IPv4 header. * This is RFC 7915 sections 5.1 and 5.1.1. * * This is used to translate both outer and inner headers. */ verdict ttp64_ipv4(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; struct ipv6hdr *hdr6 = pkt_ip6_hdr(in); struct iphdr *hdr4 = pkt_ip4_hdr(out); struct frag_hdr *hdr_frag = pkt_frag_hdr(in); verdict result; /* * translate_addrs64_siit->rfc6791v4_find->get_host_address and * generate_ipv4_id() need tos and protocol, so translate them first. */ hdr4->tos = ttp64_xlat_tos(&state->jool.globals, hdr6); hdr4->protocol = ttp64_xlat_proto(hdr6); /* * Translate the address before TTL because of issue #167. * generate_ipv4_id() also needs the addresses. */ if (xlation_is_nat64(state)) { hdr4->saddr = out->tuple.src.addr4.l3.s_addr; hdr4->daddr = out->tuple.dst.addr4.l3.s_addr; } else { result = translate_addrs64_siit(state); if (result != VERDICT_CONTINUE) return result; } hdr4->version = 4; hdr4->ihl = 5; hdr4->tot_len = build_tot_len(in, out); result = generate_ipv4_id(state, hdr4, hdr_frag); if (result != VERDICT_CONTINUE) return result; hdr4->frag_off = build_ipv4_frag_off_field(generate_df_flag(out), 0, 0); if (pkt_is_outer(in)) { if (hdr6->hop_limit <= 1) { log_debug("Packet's hop limit <= 1."); return drop_icmp(state, JSTAT64_TTL, ICMPERR_TTL, 0); } hdr4->ttl = hdr6->hop_limit - 1; } else { hdr4->ttl = hdr6->hop_limit; } /* ip4_hdr->check is set later; please scroll down. */ if (pkt_is_outer(in)) { __u32 nonzero_location; if (has_nonzero_segments_left(hdr6, &nonzero_location)) { log_debug("Packet's segments left field is nonzero."); return drop_icmp(state, JSTAT64_SEGMENTS_LEFT, ICMPERR_HDR_FIELD, nonzero_location); } } if (hdr_frag) { /* * hdr4->tot_len, id and protocal above already include the * frag header and don't need further tweaking. */ hdr4->frag_off = build_ipv4_frag_off_field(0, is_mf_set_ipv6(hdr_frag), get_fragment_offset_ipv6(hdr_frag)); } hdr4->check = 0; hdr4->check = ip_fast_csum(hdr4, hdr4->ihl); /* * The kernel already drops packets if they don't allow fragmentation * and the next hop MTU is smaller than their size. */ /* Adapt to kernel hacks. */ if (skb_shinfo(in->skb)->frag_list) hdr4->frag_off &= cpu_to_be16(~IP_MF); return VERDICT_CONTINUE; } /** * One liner for creating the ICMPv4 header's MTU field. * Returns the smallest out of the three parameters. */ static __be16 minimum(unsigned int mtu1, unsigned int mtu2, unsigned int mtu3) { return cpu_to_be16(min(mtu1, min(mtu2, mtu3))); } static verdict compute_mtu4(struct xlation *state) { struct icmphdr *out_icmp = pkt_icmp4_hdr(&state->out); #ifndef UNIT_TESTING struct dst_entry *out_dst; struct icmp6hdr *in_icmp = pkt_icmp6_hdr(&state->in); out_dst = route4(state->jool.ns, &state->out); if (!out_dst) return drop(state, JSTAT_FAILED_ROUTES); if (!state->in.skb->dev) return drop(state, JSTAT_FAILED_ROUTES); log_debug("Packet MTU: %u", be32_to_cpu(in_icmp->icmp6_mtu)); log_debug("In dev MTU: %u", state->in.skb->dev->mtu); log_debug("Out dev MTU: %u", out_dst->dev->mtu); out_icmp->un.frag.mtu = minimum(be32_to_cpu(in_icmp->icmp6_mtu) - 20, out_dst->dev->mtu, state->in.skb->dev->mtu - 20); log_debug("Resulting MTU: %u", be16_to_cpu(out_icmp->un.frag.mtu)); #else out_icmp->un.frag.mtu = minimum(1500, 9999, 9999); #endif return VERDICT_CONTINUE; } /** * One liner for translating the ICMPv6's pointer field to ICMPv4. * "Pointer" is a field from "Parameter Problem" ICMP messages. */ static verdict icmp6_to_icmp4_param_prob_ptr(struct xlation *state) { struct icmp6hdr *icmpv6_hdr = pkt_icmp6_hdr(&state->in); struct icmphdr *icmpv4_hdr = pkt_icmp4_hdr(&state->out); __u32 icmp6_ptr = be32_to_cpu(icmpv6_hdr->icmp6_dataun.un_data32[0]); __u32 icmp4_ptr; if (icmp6_ptr < 0 || 39 < icmp6_ptr) goto failure; switch (icmp6_ptr) { case 0: icmp4_ptr = 0; goto success; case 1: icmp4_ptr = 1; goto success; case 2: case 3: goto failure; case 4: case 5: icmp4_ptr = 2; goto success; case 6: icmp4_ptr = 9; goto success; case 7: icmp4_ptr = 8; goto success; } if (icmp6_ptr >= 24) { icmp4_ptr = 16; goto success; } if (icmp6_ptr >= 8) { icmp4_ptr = 12; goto success; } /* The above ifs are supposed to cover all the possible values. */ WARN(true, "Parameter problem pointer '%u' is unknown.", icmp6_ptr); goto failure; success: icmpv4_hdr->icmp4_unused = cpu_to_be32(icmp4_ptr << 24); return VERDICT_CONTINUE; failure: log_debug("Parameter problem pointer '%u' lacks an ICMPv4 counterpart.", icmp6_ptr); return drop(state, JSTAT64_UNTRANSLATABLE_PARAM_PROB_PTR); } /** * One-liner for translating "Destination Unreachable" messages from ICMPv6 to * ICMPv4. */ static verdict icmp6_to_icmp4_dest_unreach(struct xlation *state) { struct icmp6hdr *icmpv6_hdr = pkt_icmp6_hdr(&state->in); struct icmphdr *icmpv4_hdr = pkt_icmp4_hdr(&state->out); icmpv4_hdr->type = ICMP_DEST_UNREACH; icmpv4_hdr->icmp4_unused = 0; switch (icmpv6_hdr->icmp6_code) { case ICMPV6_NOROUTE: case ICMPV6_NOT_NEIGHBOUR: case ICMPV6_ADDR_UNREACH: icmpv4_hdr->code = ICMP_HOST_UNREACH; return VERDICT_CONTINUE; case ICMPV6_ADM_PROHIBITED: icmpv4_hdr->code = ICMP_HOST_ANO; return VERDICT_CONTINUE; case ICMPV6_PORT_UNREACH: icmpv4_hdr->code = ICMP_PORT_UNREACH; return VERDICT_CONTINUE; } log_debug("ICMPv6 messages type %u code %u lack an ICMPv4 counterpart.", icmpv6_hdr->icmp6_type, icmpv6_hdr->icmp6_code); return drop(state, JSTAT64_UNTRANSLATABLE_DEST_UNREACH); } /** * One-liner for translating "Parameter Problem" messages from ICMPv6 to ICMPv4. */ static verdict icmp6_to_icmp4_param_prob(struct xlation *state) { struct icmp6hdr *icmpv6_hdr = pkt_icmp6_hdr(&state->in); struct icmphdr *icmpv4_hdr = pkt_icmp4_hdr(&state->out); switch (icmpv6_hdr->icmp6_code) { case ICMPV6_HDR_FIELD: icmpv4_hdr->type = ICMP_PARAMETERPROB; icmpv4_hdr->code = 0; return icmp6_to_icmp4_param_prob_ptr(state); case ICMPV6_UNK_NEXTHDR: icmpv4_hdr->type = ICMP_DEST_UNREACH; icmpv4_hdr->code = ICMP_PROT_UNREACH; icmpv4_hdr->icmp4_unused = 0; return VERDICT_CONTINUE; } /* ICMPV6_UNK_OPTION is known to fall through here. */ log_debug("ICMPv6 messages type %u code %u lack an ICMPv4 counterpart.", icmpv6_hdr->icmp6_type, icmpv6_hdr->icmp6_code); return drop(state, JSTAT64_UNTRANSLATABLE_PARAM_PROB); } /* * Use this when only the ICMP header changed, so all there is to do is subtract * the old data from the checksum and add the new one. */ static void update_icmp4_csum(struct xlation *state) { struct ipv6hdr *in_ip6 = pkt_ip6_hdr(&state->in); struct icmp6hdr *in_icmp = pkt_icmp6_hdr(&state->in); struct icmphdr *out_icmp = pkt_icmp4_hdr(&state->out); struct icmp6hdr copy_hdr; __wsum csum, tmp; csum = ~csum_unfold(in_icmp->icmp6_cksum); /* Remove the ICMPv6 pseudo-header. */ tmp = ~csum_unfold(csum_ipv6_magic(&in_ip6->saddr, &in_ip6->daddr, pkt_datagram_len(&state->in), NEXTHDR_ICMP, 0)); csum = csum_sub(csum, tmp); /* * Remove the ICMPv6 header. * I'm working on a copy because I need to zero out its checksum. * If I did that directly on the skb, I'd need to make it writable * first. */ memcpy(©_hdr, in_icmp, sizeof(*in_icmp)); copy_hdr.icmp6_cksum = 0; tmp = csum_partial(©_hdr, sizeof(copy_hdr), 0); csum = csum_sub(csum, tmp); /* Add the ICMPv4 header. There's no ICMPv4 pseudo-header. */ out_icmp->checksum = 0; tmp = csum_partial(out_icmp, sizeof(*out_icmp), 0); csum = csum_add(csum, tmp); out_icmp->checksum = csum_fold(csum); } /** * Use this when header and payload both changed completely, so we gotta just * trash the old checksum and start anew. */ static void compute_icmp4_csum(struct packet *out) { struct icmphdr *hdr = pkt_icmp4_hdr(out); /* * This function only gets called for ICMP error checksums, so * pkt_datagram_len() is fine. */ hdr->checksum = 0; hdr->checksum = csum_fold(skb_checksum(out->skb, skb_transport_offset(out->skb), pkt_datagram_len(out), 0)); out->skb->ip_summed = CHECKSUM_NONE; } static verdict validate_icmp6_csum(struct xlation *state) { struct packet *in = &state->in; struct ipv6hdr *hdr6; unsigned int len; __sum16 csum; if (in->skb->ip_summed != CHECKSUM_NONE) return VERDICT_CONTINUE; hdr6 = pkt_ip6_hdr(in); len = pkt_datagram_len(in); csum = csum_ipv6_magic(&hdr6->saddr, &hdr6->daddr, len, NEXTHDR_ICMP, skb_checksum(in->skb, skb_transport_offset(in->skb), len, 0)); if (csum != 0) { log_debug("Checksum doesn't match."); return drop(state, JSTAT64_ICMP_CSUM); } return VERDICT_CONTINUE; } static verdict post_icmp4error(struct xlation *state) { verdict result; log_debug("Translating the inner packet (6->4)..."); result = validate_icmp6_csum(state); if (result != VERDICT_CONTINUE) return result; result = ttpcomm_translate_inner_packet(state); if (result != VERDICT_CONTINUE) return result; compute_icmp4_csum(&state->out); return VERDICT_CONTINUE; } /** * Translates in's icmp6 header and payload into out's icmp4 header and payload. * This is the core of RFC 7915 sections 5.2 and 5.3, except checksum (See * post_icmp4*()). */ verdict ttp64_icmp(struct xlation *state) { struct icmp6hdr *icmpv6_hdr = pkt_icmp6_hdr(&state->in); struct icmphdr *icmpv4_hdr = pkt_icmp4_hdr(&state->out); verdict result; icmpv4_hdr->checksum = icmpv6_hdr->icmp6_cksum; /* default. */ switch (icmpv6_hdr->icmp6_type) { case ICMPV6_ECHO_REQUEST: icmpv4_hdr->type = ICMP_ECHO; icmpv4_hdr->code = 0; icmpv4_hdr->un.echo.id = xlation_is_nat64(state) ? cpu_to_be16(state->out.tuple.icmp4_id) : icmpv6_hdr->icmp6_identifier; icmpv4_hdr->un.echo.sequence = icmpv6_hdr->icmp6_sequence; update_icmp4_csum(state); return VERDICT_CONTINUE; case ICMPV6_ECHO_REPLY: icmpv4_hdr->type = ICMP_ECHOREPLY; icmpv4_hdr->code = 0; icmpv4_hdr->un.echo.id = xlation_is_nat64(state) ? cpu_to_be16(state->out.tuple.icmp4_id) : icmpv6_hdr->icmp6_identifier; icmpv4_hdr->un.echo.sequence = icmpv6_hdr->icmp6_sequence; update_icmp4_csum(state); return VERDICT_CONTINUE; case ICMPV6_DEST_UNREACH: result = icmp6_to_icmp4_dest_unreach(state); if (result != VERDICT_CONTINUE) return result; return post_icmp4error(state); case ICMPV6_PKT_TOOBIG: /* * BTW, I have no idea what the RFC means by "taking into * account whether or not the packet in error includes a * Fragment Header"... What does the fragment header have to do * with anything here? */ icmpv4_hdr->type = ICMP_DEST_UNREACH; icmpv4_hdr->code = ICMP_FRAG_NEEDED; icmpv4_hdr->un.frag.__unused = htons(0); result = compute_mtu4(state); if (result != VERDICT_CONTINUE) return result; return post_icmp4error(state); case ICMPV6_TIME_EXCEED: icmpv4_hdr->type = ICMP_TIME_EXCEEDED; icmpv4_hdr->code = icmpv6_hdr->icmp6_code; icmpv4_hdr->icmp4_unused = 0; return post_icmp4error(state); case ICMPV6_PARAMPROB: result = icmp6_to_icmp4_param_prob(state); if (result != VERDICT_CONTINUE) return result; return post_icmp4error(state); } /* * The following codes are known to fall through here: * ICMPV6_MGM_QUERY, ICMPV6_MGM_REPORT, ICMPV6_MGM_REDUCTION, Neighbor * Discover messages (133 - 137). */ log_debug("ICMPv6 messages type %u lack an ICMPv4 counterpart.", icmpv6_hdr->icmp6_type); return drop(state, JSTAT_UNKNOWN_ICMP6_TYPE); } static __wsum pseudohdr6_csum(struct ipv6hdr *hdr) { return ~csum_unfold(csum_ipv6_magic(&hdr->saddr, &hdr->daddr, 0, 0, 0)); } static __wsum pseudohdr4_csum(struct iphdr *hdr) { return csum_tcpudp_nofold(hdr->saddr, hdr->daddr, 0, 0, 0); } static __sum16 update_csum_6to4(__sum16 csum16, struct ipv6hdr *in_ip6, void *in_l4_hdr, size_t in_l4_hdr_len, struct iphdr *out_ip4, void *out_l4_hdr, size_t out_l4_hdr_len) { __wsum csum; csum = ~csum_unfold(csum16); /* * Regarding the pseudoheaders: * The length is pretty hard to obtain if there's TCP and fragmentation, * and whatever it is, it's not going to change. Therefore, instead of * computing it only to cancel it out with itself later, simply sum * (and substract) zero. * Do the same with proto since we're feeling ballsy. */ /* Remove the IPv6 crap. */ csum = csum_sub(csum, pseudohdr6_csum(in_ip6)); csum = csum_sub(csum, csum_partial(in_l4_hdr, in_l4_hdr_len, 0)); /* Add the IPv4 crap. */ csum = csum_add(csum, pseudohdr4_csum(out_ip4)); csum = csum_add(csum, csum_partial(out_l4_hdr, out_l4_hdr_len, 0)); return csum_fold(csum); } static __sum16 update_csum_6to4_partial(__sum16 csum16, struct ipv6hdr *in_ip6, struct iphdr *out_ip4) { __wsum csum = csum_unfold(csum16); csum = csum_sub(csum, pseudohdr6_csum(in_ip6)); csum = csum_add(csum, pseudohdr4_csum(out_ip4)); return ~csum_fold(csum); } verdict ttp64_tcp(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; struct tcphdr *tcp_in = pkt_tcp_hdr(in); struct tcphdr *tcp_out = pkt_tcp_hdr(out); struct tcphdr tcp_copy; /* Header */ memcpy(tcp_out, tcp_in, pkt_l4hdr_len(in)); if (xlation_is_nat64(state)) { tcp_out->source = cpu_to_be16(out->tuple.src.addr4.l4); tcp_out->dest = cpu_to_be16(out->tuple.dst.addr4.l4); } /* Header.checksum */ if (in->skb->ip_summed != CHECKSUM_PARTIAL) { memcpy(&tcp_copy, tcp_in, sizeof(*tcp_in)); tcp_copy.check = 0; tcp_out->check = 0; tcp_out->check = update_csum_6to4(tcp_in->check, pkt_ip6_hdr(in), &tcp_copy, sizeof(tcp_copy), pkt_ip4_hdr(out), tcp_out, sizeof(*tcp_out)); out->skb->ip_summed = CHECKSUM_NONE; } else { tcp_out->check = update_csum_6to4_partial(tcp_in->check, pkt_ip6_hdr(in), pkt_ip4_hdr(out)); partialize_skb(out->skb, offsetof(struct tcphdr, check)); } return VERDICT_CONTINUE; } verdict ttp64_udp(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; struct udphdr *udp_in = pkt_udp_hdr(in); struct udphdr *udp_out = pkt_udp_hdr(out); struct udphdr udp_copy; /* Header */ memcpy(udp_out, udp_in, pkt_l4hdr_len(in)); if (xlation_is_nat64(state)) { udp_out->source = cpu_to_be16(out->tuple.src.addr4.l4); udp_out->dest = cpu_to_be16(out->tuple.dst.addr4.l4); } /* Header.checksum */ if (in->skb->ip_summed != CHECKSUM_PARTIAL) { memcpy(&udp_copy, udp_in, sizeof(*udp_in)); udp_copy.check = 0; udp_out->check = 0; udp_out->check = update_csum_6to4(udp_in->check, pkt_ip6_hdr(in), &udp_copy, sizeof(udp_copy), pkt_ip4_hdr(out), udp_out, sizeof(*udp_out)); if (udp_out->check == 0) udp_out->check = CSUM_MANGLED_0; out->skb->ip_summed = CHECKSUM_NONE; } else { udp_out->check = update_csum_6to4_partial(udp_in->check, pkt_ip6_hdr(in), pkt_ip4_hdr(out)); partialize_skb(out->skb, offsetof(struct udphdr, check)); } return VERDICT_CONTINUE; } jool-4.0.7/src/mod/common/rfc7915/common.c0000664000175000017500000002274413576247347015035 00000000000000#include "mod/common/rfc7915/common.h" #include #include "common/config.h" #include "mod/common/ipv6_hdr_iterator.h" #include "mod/common/packet.h" #include "mod/common/stats.h" #include "mod/common/rfc7915/4to6.h" #include "mod/common/rfc7915/6to4.h" #include "mod/common/db/blacklist4.h" struct backup_skb { unsigned int pulled; struct { int l3; int l4; } offset; void *payload; l4_protocol l4_proto; struct tuple tuple; }; static verdict handle_unknown_l4(struct xlation *state) { return VERDICT_CONTINUE; } static struct translation_steps steps[][L4_PROTO_COUNT] = { { /* IPv6 */ { .skb_alloc_fn = ttp64_alloc_skb, .l3_hdr_fn = ttp64_ipv4, .l4_hdr_fn = ttp64_tcp, }, { .skb_alloc_fn = ttp64_alloc_skb, .l3_hdr_fn = ttp64_ipv4, .l4_hdr_fn = ttp64_udp, }, { .skb_alloc_fn = ttp64_alloc_skb, .l3_hdr_fn = ttp64_ipv4, .l4_hdr_fn = ttp64_icmp, }, { .skb_alloc_fn = ttp64_alloc_skb, .l3_hdr_fn = ttp64_ipv4, .l4_hdr_fn = handle_unknown_l4, } }, { /* IPv4 */ { .skb_alloc_fn = ttp46_alloc_skb, .l3_hdr_fn = ttp46_ipv6, .l4_hdr_fn = ttp46_tcp, }, { .skb_alloc_fn = ttp46_alloc_skb, .l3_hdr_fn = ttp46_ipv6, .l4_hdr_fn = ttp46_udp, }, { .skb_alloc_fn = ttp46_alloc_skb, .l3_hdr_fn = ttp46_ipv6, .l4_hdr_fn = ttp46_icmp, }, { .skb_alloc_fn = ttp46_alloc_skb, .l3_hdr_fn = ttp46_ipv6, .l4_hdr_fn = handle_unknown_l4, } } }; /** * RFC 7915: * "When the IPv4 sender does not set the DF bit, the translator MUST NOT * include the Fragment Header for the non-fragmented IPv6 packets." * * Very strange wording. I believe that DF enabled also implies no fragmentation * (as everyone seems to assume no one generates DF-enabled fragments), which, * stacked with the general direction of the atomic fragments deprecation * effort, I think what it actually means is * * The translator MUST NOT include the Fragment Header for non-fragmented IPv6 * packets. (Obviously, if the packet is fragmented, the fragment header MUST * be included.) * * (i.e. The translator must include the Fragment header if, and only if, the * packet is fragmented.) * * The following quote also supports this logic: * "If there is a need to add a Fragment Header (the packet is a fragment * or the DF bit is not set and the packet size is greater than the * minimum IPv6 MTU (...))," * * So that's why I implemented it this way. */ bool will_need_frag_hdr(const struct iphdr *hdr) { return is_mf_set_ipv4(hdr) || get_fragment_offset_ipv4(hdr); } static int report_bug247(struct packet *pkt, __u8 proto) { struct sk_buff *skb = pkt->skb; struct skb_shared_info *shinfo = skb_shinfo(skb); unsigned int i; unsigned char *pos; pr_err("----- JOOL OUTPUT -----\n"); pr_err("Bug #247 happened!\n"); pr_err("xlator: " JOOL_VERSION_STR); pr_err("Page size: %lu\n", PAGE_SIZE); pr_err("Page shift: %u\n", PAGE_SHIFT); pr_err("protocols: %u %u %u\n", pkt->l3_proto, pkt->l4_proto, proto); snapshot_report(&pkt->debug.shot1, "initial"); snapshot_report(&pkt->debug.shot2, "mid"); pr_err("current len: %u\n", skb->len); pr_err("current data_len: %u\n", skb->data_len); pr_err("current nr_frags: %u\n", shinfo->nr_frags); for (i = 0; i < shinfo->nr_frags; i++) { pr_err(" current frag %u: %u\n", i, skb_frag_size(&shinfo->frags[i])); } pr_err("skb head:%p data:%p tail:%p end:%p\n", skb->head, skb->data, skb_tail_pointer(skb), skb_end_pointer(skb)); pr_err("skb l3-hdr:%p l4-hdr:%p payload:%p\n", skb_network_header(skb), skb_transport_header(skb), pkt_payload(pkt)); pr_err("packet content: "); for (pos = skb->head; pos < skb_end_pointer(skb); pos++) pr_cont("%x ", *pos); pr_cont("\n"); pr_err("Dropping packet.\n"); pr_err("-----------------------\n"); return -EINVAL; } static int move_pointers_in(struct packet *pkt, __u8 protocol, unsigned int l3hdr_len) { unsigned int l4hdr_len; if (unlikely(pkt->skb->len - pkt_hdrs_len(pkt) < pkt->skb->data_len)) return report_bug247(pkt, protocol); if (!jskb_pull(pkt->skb, pkt_hdrs_len(pkt))) return -EINVAL; skb_reset_network_header(pkt->skb); skb_set_transport_header(pkt->skb, l3hdr_len); switch (protocol) { case IPPROTO_TCP: pkt->l4_proto = L4PROTO_TCP; l4hdr_len = tcp_hdr_len(pkt_tcp_hdr(pkt)); break; case IPPROTO_UDP: pkt->l4_proto = L4PROTO_UDP; l4hdr_len = sizeof(struct udphdr); break; case IPPROTO_ICMP: case NEXTHDR_ICMP: pkt->l4_proto = L4PROTO_ICMP; l4hdr_len = sizeof(struct icmphdr); break; default: pkt->l4_proto = L4PROTO_OTHER; l4hdr_len = 0; break; } pkt->is_inner = true; pkt->payload = skb_transport_header(pkt->skb) + l4hdr_len; return 0; } static int move_pointers_out(struct packet *in, struct packet *out, unsigned int l3hdr_len) { if (!jskb_pull(out->skb, pkt_hdrs_len(out))) return -EINVAL; skb_reset_network_header(out->skb); skb_set_transport_header(out->skb, l3hdr_len); out->l4_proto = pkt_l4_proto(in); out->is_inner = true; out->payload = skb_transport_header(out->skb) + pkt_l4hdr_len(in); return 0; } static int move_pointers4(struct xlation *state) { struct iphdr *hdr4; unsigned int l3hdr_len; int error; hdr4 = pkt_payload(&state->in); error = move_pointers_in(&state->in, hdr4->protocol, 4 * hdr4->ihl); if (error) return error; l3hdr_len = sizeof(struct ipv6hdr); if (will_need_frag_hdr(hdr4)) l3hdr_len += sizeof(struct frag_hdr); return move_pointers_out(&state->in, &state->out, l3hdr_len); } static int move_pointers6(struct packet *in, struct packet *out) { struct ipv6hdr *hdr6 = pkt_payload(in); struct hdr_iterator iterator = HDR_ITERATOR_INIT(hdr6); int error; hdr_iterator_last(&iterator); error = move_pointers_in(in, iterator.hdr_type, iterator.data - (void *)hdr6); if (error) return error; return move_pointers_out(in, out, sizeof(struct iphdr)); } static void backup(struct xlation *state, struct packet *pkt, struct backup_skb *bkp) { bkp->pulled = pkt_hdrs_len(pkt); bkp->offset.l3 = skb_network_offset(pkt->skb); bkp->offset.l4 = skb_transport_offset(pkt->skb); bkp->payload = pkt_payload(pkt); bkp->l4_proto = pkt_l4_proto(pkt); if (xlation_is_nat64(state)) bkp->tuple = pkt->tuple; } static int restore(struct xlation *state, struct packet *pkt, struct backup_skb *bkp) { if (!jskb_push(pkt->skb, bkp->pulled)) return -EINVAL; skb_set_network_header(pkt->skb, bkp->offset.l3); skb_set_transport_header(pkt->skb, bkp->offset.l4); pkt->payload = bkp->payload; pkt->l4_proto = bkp->l4_proto; pkt->is_inner = 0; if (xlation_is_nat64(state)) pkt->tuple = bkp->tuple; return 0; } verdict ttpcomm_translate_inner_packet(struct xlation *state) { struct packet *in = &state->in; struct packet *out = &state->out; struct backup_skb bkp_in, bkp_out; struct translation_steps *current_steps; verdict result; backup(state, in, &bkp_in); backup(state, out, &bkp_out); switch (pkt_l3_proto(in)) { case L3PROTO_IPV4: if (move_pointers4(state)) return drop(state, JSTAT_UNKNOWN); break; case L3PROTO_IPV6: if (move_pointers6(in, out)) return drop(state, JSTAT_UNKNOWN); break; } if (xlation_is_nat64(state)) { in->tuple.src = bkp_in.tuple.dst; in->tuple.dst = bkp_in.tuple.src; out->tuple.src = bkp_out.tuple.dst; out->tuple.dst = bkp_out.tuple.src; } current_steps = &steps[pkt_l3_proto(in)][pkt_l4_proto(in)]; result = current_steps->l3_hdr_fn(state); if (result == VERDICT_UNTRANSLATABLE) { /* * Accepting because of an inner packet doesn't make sense. * Also we couldn't have translated this inner packet. */ return VERDICT_DROP; } if (result != VERDICT_CONTINUE) return result; result = current_steps->l4_hdr_fn(state); if (result == VERDICT_UNTRANSLATABLE) return VERDICT_DROP; if (result != VERDICT_CONTINUE) return result; if (restore(state, in, &bkp_in)) return drop(state, JSTAT_UNKNOWN); if (restore(state, out, &bkp_out)) return drop(state, JSTAT_UNKNOWN); return VERDICT_CONTINUE; } struct translation_steps *ttpcomm_get_steps(struct packet *in) { return &steps[pkt_l3_proto(in)][pkt_l4_proto(in)]; } /** * partialize_skb - set up @out_skb so the layer 4 checksum will be computed * from almost-scratch by the OS or by the NIC later. * @csum_offset: The checksum field's offset within its header. * * When the incoming skb's ip_summed field is NONE, UNNECESSARY or COMPLETE, * the checksum is defined, in the sense that its correctness consistently * dictates whether the packet is corrupted or not. In these cases, Jool is * supposed to update the checksum with the translation changes (pseudoheader * and transport header) and forget about it. The incoming packet's corruption * will still be reflected in the outgoing packet's checksum. * * On the other hand, when the incoming skb's ip_summed field is PARTIAL, * the existing checksum only covers the pseudoheader (which Jool replaces). * In these cases, fully updating the checksum is wrong because it doesn't * already cover the transport header, and fully computing it again is wasted * time because this work can be deferred to the NIC (which'll likely do it * faster). * * The correct thing to do is convert the partial (pseudoheader-only) checksum * into a translated-partial (pseudoheader-only) checksum, and set up some skb * fields so the NIC can do its thing. * * This function handles the skb fields setting part. */ void partialize_skb(struct sk_buff *out_skb, unsigned int csum_offset) { out_skb->ip_summed = CHECKSUM_PARTIAL; out_skb->csum_start = skb_transport_header(out_skb) - out_skb->head; out_skb->csum_offset = csum_offset; } jool-4.0.7/src/mod/common/rfc7915/common.h0000664000175000017500000000413313576247347015032 00000000000000#ifndef SRC_MOD_COMMON_RFC7915_COMMON_H_ #define SRC_MOD_COMMON_RFC7915_COMMON_H_ #include #include "common/types.h" #include "mod/common/packet.h" #include "mod/common/translation_state.h" /** * An accesor for the full unused portion of the ICMP header, which I feel is * missing from linux/icmp.h. */ #define icmp4_unused un.gateway struct translation_steps { /** * Note: For the purposes of this comment, remember that the reserved * area of a packet (bytes between head and data) is called "headroom" * (example: skb_headroom()), while the non-paged active area (bytes * between data and tail) is called "head" (eg: skb_headlen()). This is * a kernel quirk; don't blame me for it. * * Performs a pskb_copy()-style clone (ie. different sk_buff, different * head, same pages) of @state->in.skb and places it in @state->out.skb. * Ensures there's enough headroom for translated headers. Packet * content translation is deferred to the other functions below. * * "Why do we need this? Why don't we simply override the headers of the * incoming packet? This would avoid lots of allocation and copying." * * Because we can't afford to completely lose the original headers until * we've fetched the translated packet successfully. Even after the * RFC7915 code ends, there is still stuff we might need the original * packet for, such as replying an ICMP error or NF_ACCEPTing. */ verdict (*skb_alloc_fn)(struct xlation *state); /** * The function that will translate the layer-3 header. */ verdict (*l3_hdr_fn)(struct xlation *state); /** * The function that will translate the layer-4 header. * For ICMP errors, this also translates the inner packet headers. */ verdict (*l4_hdr_fn)(struct xlation *state); }; struct translation_steps *ttpcomm_get_steps(struct packet *in); void partialize_skb(struct sk_buff *skb, unsigned int csum_offset); bool will_need_frag_hdr(const struct iphdr *hdr); verdict ttpcomm_translate_inner_packet(struct xlation *state); bool must_not_translate(struct in_addr *addr, struct net *ns); #endif /* SRC_MOD_COMMON_RFC7915_COMMON_H_ */ jool-4.0.7/src/mod/common/rfc7915/4to6.h0000664000175000017500000000203613576247347014336 00000000000000#ifndef SRC_MOD_COMMON_RFC7915_4TO6_H_ #define SRC_MOD_COMMON_RFC7915_4TO6_H_ /** * @file * Actual translation of packet contents from from IPv4 to IPv6. * * This is RFC 7915 sections 4.1, 4.2 and 4.3. */ #include "mod/common/rfc7915/common.h" /** * Creates in "state->out.skb" a packet which other functions will fill with the * IPv6 version of the IPv4 packet "in". */ verdict ttp46_alloc_skb(struct xlation *state); /** * Translates "state->in"'s IPv4 header into IPv6 and places the result in * "state->out". */ verdict ttp46_ipv6(struct xlation *state); /** * Translates "state->in"'s ICMPv4 header and payload, and places the result in * "state->out". */ verdict ttp46_icmp(struct xlation *state); /** * Translates "state->in"'s TCP header and payload, and places the result in * "state->out". */ verdict ttp46_tcp(struct xlation *state); /** * Translates "state->in"'s UDP header and payload, and places the result in * "state->out". */ verdict ttp46_udp(struct xlation *state); #endif /* SRC_MOD_COMMON_RFC7915_4TO6_H_ */ jool-4.0.7/src/mod/common/rfc7915/6to4.h0000664000175000017500000000235613576247347014343 00000000000000#ifndef SRC_MOD_COMMON_RFC7915_6TO4_H_ #define SRC_MOD_COMMON_RFC7915_6TO4_H_ /** * @file * Actual translation of packet contents from from IPv6 to IPv4. * * This is RFC 7915 sections 5.1, 5.1.1, 5.2 and 5.3. Not to be confused with * the technology called "6to4", which is RFC 3056. */ #include "mod/common/translation_state.h" /** * Creates in "state->out.skb" a packet which other functions will fill with the * IPv4 version of the IPv6 packet "state->in.skb". */ verdict ttp64_alloc_skb(struct xlation *state); /** * Translates "state->in"'s IPv6 header into IPv4 and places the result in * "state->out". */ verdict ttp64_ipv4(struct xlation *state); /** * Translates "state->in"'s ICMPv6 header and payload, and places the result in * "state->out". */ verdict ttp64_icmp(struct xlation *state); /** * Translates "state->in"'s TCP header and payload, and places the result in * "state->out". */ verdict ttp64_tcp(struct xlation *state); /** * Translates "state->in"'s UDP header and payload, and places the result in * "state->out". */ verdict ttp64_udp(struct xlation *state); __u8 ttp64_xlat_tos(struct globals *config, struct ipv6hdr *hdr); __u8 ttp64_xlat_proto(struct ipv6hdr *hdr); #endif /* SRC_MOD_COMMON_RFC7915_6TO4_H_ */ jool-4.0.7/src/mod/common/rfc7915/core.c0000664000175000017500000000216013576247347014463 00000000000000#include "mod/common/rfc7915/core.h" #include "mod/common/log.h" #include "mod/common/rfc7915/common.h" static bool has_l4_hdr(struct xlation *state) { switch (pkt_l3_proto(&state->in)) { case L3PROTO_IPV6: return is_first_frag6(pkt_frag_hdr(&state->in)); case L3PROTO_IPV4: return is_first_frag4(pkt_ip4_hdr(&state->in)); } WARN(1, "Supposedly unreachable code reached. Proto: %u", pkt_l3_proto(&state->in)); return false; } verdict translating_the_packet(struct xlation *state) { struct translation_steps *steps = ttpcomm_get_steps(&state->in); verdict result; if (xlation_is_nat64(state)) log_debug("Step 4: Translating the Packet"); else log_debug("Translating the Packet."); result = steps->skb_alloc_fn(state); if (result != VERDICT_CONTINUE) return result; result = steps->l3_hdr_fn(state); if (result != VERDICT_CONTINUE) goto revert; if (has_l4_hdr(state)) { result = steps->l4_hdr_fn(state); if (result != VERDICT_CONTINUE) goto revert; } if (xlation_is_nat64(state)) log_debug("Done step 4."); return VERDICT_CONTINUE; revert: kfree_skb(state->out.skb); return result; } jool-4.0.7/src/mod/common/rfc7915/core.h0000664000175000017500000000103613576247347014471 00000000000000#ifndef SRC_MOD_COMMON_RFC7915_CORE_H_ #define SRC_MOD_COMMON_RFC7915_CORE_H_ /** * @file * This is the face of the "Translating the Packet" code. Files outside of this * folder should only see the API exposed by this file. * * "Translating the Packet" is the core translation of SIIT and the fourth step * of NAT64 (RFC6146 section 3.7). */ #include #include #include "mod/common/translation_state.h" verdict translating_the_packet(struct xlation *state); #endif /* SRC_MOD_COMMON_RFC7915_CORE_H_ */ jool-4.0.7/src/mod/common/icmp_wrapper.h0000664000175000017500000000303513576247347015132 00000000000000#ifndef SRC_MOD_COMMON_ICMP_WRAPPER_H_ #define SRC_MOD_COMMON_ICMP_WRAPPER_H_ /** * @file * Direct use of the icmp_send() and icmpv6_send() functions after the determine * incoming tuple step is bound to become a bug nest. That's because steps * filtering through translate are reused in hairpinning, so when an error * occurs while translating a IPv4 packet, one cannot assume that the resulting * ICMP error will be a IPv4 one. * * In those situations, you can use this code instead. It transparently sends * the correct ICMP error no matter where you are. * * For the sake of consistency, and so the unit tests don't send bogus ICMP * errors left and right (because the unit tests use an impersonator no-op ICMP * wrapper), use this module even if your code isn't reused in hairpinning, * please. */ #include "mod/common/packet.h" typedef enum icmp_errcode { ICMPERR_NONE, ICMPERR_ADDR_UNREACHABLE, ICMPERR_PORT_UNREACHABLE, ICMPERR_PROTO_UNREACHABLE, ICMPERR_TTL, ICMPERR_FRAG_NEEDED, ICMPERR_HDR_FIELD, ICMPERR_SRC_ROUTE, ICMPERR_FILTER, } icmp_error_code; /** * Wrappers for icmp_send() and icmpv6_send(). */ bool icmp64_send6(struct sk_buff *skb, icmp_error_code error, __u32 info); bool icmp64_send4(struct sk_buff *skb, icmp_error_code error, __u32 info); bool icmp64_send(struct sk_buff *skb, icmp_error_code error, __u32 info); /** * Return the numbers of icmp error that was sent, also reset the static counter * This is only used in Unit Testing. */ int icmp64_pop(void); #endif /* SRC_MOD_COMMON_ICMP_WRAPPER_H_ */ jool-4.0.7/src/mod/common/rcu.h0000664000175000017500000000254413576247347013237 00000000000000#ifndef SRC_MOD_COMMON_RCU_H_ #define SRC_MOD_COMMON_RCU_H_ /** * @file * RCU primitives which are lacking from the kernel's headers. * http://stackoverflow.com/questions/32360052 */ #include "mod/common/linux_version.h" #define list_for_each_rcu_bh(pos, head) \ for (pos = rcu_dereference_bh(list_next_rcu(head)); \ pos != head; \ pos = rcu_dereference_bh(list_next_rcu(pos))) #define hlist_for_each_rcu_bh(pos, head) \ for (pos = rcu_dereference_bh(hlist_first_rcu(head)); \ pos; \ pos = rcu_dereference_bh(hlist_next_rcu(pos))) /* * They removed synchronize_rcu_bh() in kernel 5.1, because synchronize_rcu() * can apparently be used instead. * https://github.com/torvalds/linux/commit/6ba7d681aca22e53385bdb35b1d7662e61905760 * https://github.com/torvalds/linux/commit/82fcecfa81855924cc69f3078113cf63dd6c2964 * https://github.com/torvalds/linux/commit/65cfe3583b612a22e12fba9a7bbd2d37ca5ad941 * https://patchwork.ozlabs.org/patch/996174/ * https://www.kernel.org/doc/Documentation/RCU/whatisRCU.txt (Section 7: FULL * LIST OF RCU APIs) * * Which is reaaaaaally weird. What if it turns out they need to add a separate * version later again? Hope they know what they're doing, seriously. */ #if LINUX_VERSION_AT_LEAST(5, 1, 0, 9999, 0) #define synchronize_rcu_bh synchronize_rcu #endif #endif /* SRC_MOD_COMMON_RCU_H_ */ jool-4.0.7/src/mod/common/log.h0000664000175000017500000000426213576247347013226 00000000000000#ifndef SRC_MOD_COMMON_LOG_H_ #define SRC_MOD_COMMON_LOG_H_ #include /** * Messages to help us walk through a run. Also covers normal packet drops * (because users catch those from stats instead) and some failed memory * allocations (because the kernel already prints those). */ #define log_debug(text, ...) \ pr_debug("Jool: " text "\n", ##__VA_ARGS__) /** * Responses to events triggered by the user, which might not show signs of life * elsehow. */ #define log_info(text, ...) \ pr_info("Jool: " text "\n", ##__VA_ARGS__) /** * Warnings. Only use this one during module insertion/deletion. * Elsewhere use @log_warn_once. */ #define log_warn(text, ...) \ pr_warn("Jool WARNING (%s): " text "\n", __func__, ##__VA_ARGS__) /** * "I'm not going to translate this because the config's not right." * These rate limit themselves so the log doesn't get too flooded. */ #define log_warn_once(text, ...) \ do { \ static bool __logged = false; \ static unsigned long __last_log; \ \ if (!__logged || __last_log < jiffies - msecs_to_jiffies(60 * 1000)) { \ log_warn(text, ##__VA_ARGS__); \ __logged = true; \ __last_log = jiffies; \ } \ } while (0) /** * "Your configuration cannot be applied, user." * log_warn_once() signals errors while processing packets. log_err() signals * errors while processing user requests. * I the code found a **programming** error, use WARN() or its variations * instead. */ #ifdef UNIT_TESTING #define log_err(text, ...) \ pr_err("Jool ERROR (%s): " text "\n", __func__, ##__VA_ARGS__) #else void log_err(const char *format, ...) __attribute__((format(printf, 1, 2))); #endif /** * Used when a developer wants to print a debug message, but this message would * not be useful after the bug is fixed. These are separated from `log_debug` * and `log_info` so you can spot them through simple greps and delete them * guilt-free. * * These should not be committed, so if you see one in uploaded code, delete it. */ #define log_delete(text, ...) pr_err("DELETE ME! %s(%d): " text "\n", \ __func__, __LINE__, ##__VA_ARGS__) #define PR_DEBUG pr_err("%s:%d (%s())\n", __FILE__, __LINE__, __func__) #endif /* SRC_MOD_COMMON_LOG_H_ */ jool-4.0.7/src/mod/common/kernel_hook_netfilter.c0000664000175000017500000000502013576247347017005 00000000000000#include "mod/common/kernel_hook.h" #include "mod/common/log.h" #include "mod/common/core.h" /* #pragma GCC diagnostic error "-Wframe-larger-than=1" */ static verdict find_instance(struct sk_buff *skb, struct xlator *result) { int error; error = xlator_find_netfilter(dev_net(skb->dev), result); switch (error) { case 0: return VERDICT_CONTINUE; case -ESRCH: /* * The hook functions are called on every packet whenever they * reach a namespace, so not finding an instance here is * perfectly normal and does not warrant an error message. */ return VERDICT_UNTRANSLATABLE; case -EINVAL: WARN(true, "xlator_find() is not supposed to EINVAL when iname is NULL."); return VERDICT_UNTRANSLATABLE; } WARN(true, "Unknown error code %d while trying to find iptables a Jool instance.", error); return VERDICT_UNTRANSLATABLE; } static unsigned int verdict2netfilter(verdict result, bool silence) { switch (result) { case VERDICT_STOLEN: return NF_STOLEN; /* This is the happy path. */ case VERDICT_UNTRANSLATABLE: if (!silence) log_debug("Returning the packet to the kernel."); return NF_ACCEPT; case VERDICT_DROP: log_debug("Dropping packet."); return NF_DROP; case VERDICT_CONTINUE: WARN(true, "At time of writing, Jool core is not supposed to return CONTINUE after the packet is handled.\n" "Please report this to the Jool devs."); return NF_ACCEPT; /* Hmmm... */ } WARN(true, "Unknown verdict: %d", result); return NF_DROP; } /** * This is the function that the kernel calls whenever a packet reaches Jool's * IPv6 Netfilter hook. */ NF_CALLBACK(hook_ipv6, skb) { struct xlation *state; verdict result; bool silence = true; state = xlation_create(NULL); if (!state) return NF_DROP; result = find_instance(skb, &state->jool); if (result != VERDICT_CONTINUE) goto end; silence = false; result = core_6to4(skb, state); xlator_put(&state->jool); end: xlation_destroy(state); return verdict2netfilter(result, silence); } EXPORT_SYMBOL_GPL(hook_ipv6); /** * This is the function that the kernel calls whenever a packet reaches Jool's * IPv4 Netfilter hook. */ NF_CALLBACK(hook_ipv4, skb) { struct xlation *state; verdict result; bool silence = true; state = xlation_create(NULL); if (!state) return NF_DROP; result = find_instance(skb, &state->jool); if (result != VERDICT_CONTINUE) goto end; silence = false; result = core_4to6(skb, state); xlator_put(&state->jool); end: xlation_destroy(state); return verdict2netfilter(result, silence); } EXPORT_SYMBOL_GPL(hook_ipv4); jool-4.0.7/src/mod/common/stats.c0000664000175000017500000000446513576247347013603 00000000000000#include "mod/common/stats.h" #include #include #include #include "mod/common/linux_version.h" #include "mod/common/wkmalloc.h" struct jool_mib { unsigned long mibs[__JSTAT_MAX]; }; struct jool_stats { DEFINE_SNMP_STAT(struct jool_mib, mib); struct kref refcounter; }; struct jool_stats *jstat_alloc(void) { struct jool_stats *result; result = wkmalloc(struct jool_stats, GFP_KERNEL); if (!result) return NULL; #if LINUX_VERSION_AT_LEAST(3, 16, 0, 8, 0) result->mib = alloc_percpu(struct jool_mib); if (!result->mib) { #else if (snmp_mib_init((void __percpu **)result->mib, sizeof(struct jool_mib), __alignof__(struct jool_mib)) < 0) { #endif wkfree(struct jool_stats, result); return NULL; } kref_init(&result->refcounter); return result; } void jstat_get(struct jool_stats *stats) { kref_get(&stats->refcounter); } static void jstat_release(struct kref *refcount) { struct jool_stats *stats; stats = container_of(refcount, struct jool_stats, refcounter); #if LINUX_VERSION_AT_LEAST(3, 16, 0, 8, 0) free_percpu(stats->mib); #else snmp_mib_free((void __percpu **)stats->mib); #endif wkfree(struct jool_stats, stats); } void jstat_put(struct jool_stats *stats) { kref_put(&stats->refcounter, jstat_release); } void jstat_inc(struct jool_stats *stats, enum jool_stat_id stat) { SNMP_INC_STATS(stats->mib, stat); } void jstat_dec(struct jool_stats *stats, enum jool_stat_id stat) { SNMP_DEC_STATS(stats->mib, stat); } void jstat_add(struct jool_stats *stats, enum jool_stat_id stat, int addend) { SNMP_ADD_STATS(stats->mib, stat, addend); } /** * Returns the list of stats as an array. You will have to free it. * The array length will be __JSTAT_MAX. */ __u64 *jstat_query(struct jool_stats *stats) { __u64 *result; int i; result = kcalloc(__JSTAT_MAX, sizeof(__u64), GFP_KERNEL); if (!result) return NULL; for (i = 0; i < __JSTAT_MAX; i++) { #if LINUX_VERSION_AT_LEAST(3, 16, 0, 9999, 0) result[i] = snmp_fold_field(stats->mib, i); #else result[i] = snmp_fold_field((void __percpu **)stats->mib, i); #endif } return result; } #ifdef UNIT_TESTING int jstat_refcount(struct jool_stats *stats) { #if LINUX_VERSION_AT_LEAST(4, 11, 0, 9999, 0) return kref_read(&stats->refcounter); #else return atomic_read(&stats->refcounter.refcount); #endif } #endif jool-4.0.7/src/mod/common/ipv6_hdr_iterator.h0000664000175000017500000000475213576247347016103 00000000000000#ifndef SRC_MOD_COMMON_HDR_ITERATOR_H_ #define SRC_MOD_COMMON_HDR_ITERATOR_H_ /** * @file * Routines and structures that help traverse the extension headers of IPv6 packets. * * Everything in this file assumes the main IPv6 header is glued in memory to the extension headers, * preceding them (such as in a linearized sk_buff). This assumption is fine in this project * because early validation ensures all headers can be pulled (see pskb_may_pull()). */ #include #include /** * An object that helps you traverse the IPv6 headers of a packet. */ struct hdr_iterator { /** Type of the header we're currently visiting (previous header's nexthdr value). */ __u8 hdr_type; /** * Header we're currently visiting. Might also be the payload, if the iteration ended. * You can know what's here by querying "hdr_type". */ void *data; }; /** * Use this to initialize your header iterator. * * @param main_hdr The IPv6 header whose subheaders you want to traverse. * @return a initialized "hdr_iterator". */ #define HDR_ITERATOR_INIT(main_hdr) { \ .hdr_type = (main_hdr)->nexthdr, \ .data = (main_hdr) + 1, \ } /** * Use this to initialize your "iterator". * * @param iterator The struct you want to initialize. * @param main_hdr The IPv6 header whose subheaders you want to traverse. */ void hdr_iterator_init(struct hdr_iterator *iterator, struct ipv6hdr *main_hdr); /** * Advances "iterator->data" one header and updates "iterator->hdr_type" accordingly. If "iterator" * has already reached the payload, nothing will happen. * * @param iterator iterator you want to move to the next header. * @return 0 if the iterator hit unrecognized data, EAGAIN if this function can be called again * to reach another header. */ int hdr_iterator_next(struct hdr_iterator *iterator); /** * Advances "iterator" to the end of the recognized header chain. * * @param iterator iterator you want to move to the end of its chain. */ void hdr_iterator_last(struct hdr_iterator *iterator); /** * Internally uses an iterator to reach and return header "hdr_id" from the headers following * "ip6_hdr"'s. * * @param ip6_hdr fixed header from the packet you want the extension header from. * @param hdr_id header type you want. * @return header whose ID is "hdr_id" from "ip6_hdr"'s extension headers. Returns "NULL" if the * header chain does not contain such a header. */ void *hdr_iterator_find(struct ipv6hdr *ip6_hdr, __u8 hdr_id); #endif /* SRC_MOD_COMMON_HDR_ITERATOR_H_ */ jool-4.0.7/src/mod/common/timer.h0000664000175000017500000000075613576247347013571 00000000000000#ifndef SRC_MOD_NAT64_TIMER_H_ #define SRC_MOD_NAT64_TIMER_H_ /** * @file * An all-purpose timer used to trigger some of Jool's events. Always runs, as * long as Jool is modprobed. At time of writing, this induces session and * fragment expiration. * * Why don't the session and fragment code manage their own timers? * Because that's more code and I don't see how it would improve anything. */ int jtimer_setup(void); void jtimer_teardown(void); #endif /* SRC_MOD_NAT64_TIMER_H_ */ jool-4.0.7/src/mod/common/address_xlat.c0000664000175000017500000000625513576247347015121 00000000000000#include "mod/common/address_xlat.h" #include "mod/common/address.h" #include "mod/common/rfc6052.h" #include "mod/common/db/blacklist4.h" #include "mod/common/db/eam.h" static bool is_illegal_source(struct in6_addr *src) { /* * The RFC does not define "illegal source address"... * TODO think about this. */ return (src->s6_addr32[0] == 0) && (src->s6_addr32[1] == 0) && (src->s6_addr32[2] == 0) && (be32_to_cpu(src->s6_addr32[3]) == 1); } static bool must_not_translate(struct in_addr *addr, struct net *ns) { return addr4_is_scope_subnet(addr->s_addr) || interface_contains(ns, addr); } static struct addrxlat_result programming_error(void) { struct addrxlat_result result; result.verdict = ADDRXLAT_DROP; result.reason = "Programming error"; return result; } struct addrxlat_result addrxlat_siit64(struct xlator *instance, struct in6_addr *in, struct result_addrxlat64 *out) { struct addrxlat_result result; int error; if (is_illegal_source(in)) { result.verdict = ADDRXLAT_DROP; result.reason = "IPv6 source address (::1) is illegal (according to RFC 7915)"; return result; } error = eamt_xlat_6to4(instance->siit.eamt, in, out); if (!error) goto success; if (unlikely(error != -ESRCH)) return programming_error(); if (!instance->globals.pool6.set || rfc6052_6to4(&instance->globals.pool6.prefix, in, out)) { result.verdict = ADDRXLAT_TRY_SOMETHING_ELSE; result.reason = "The input address lacks both pool6 prefix and EAM"; return result; } if (blacklist4_contains(instance->siit.blacklist4, &out->addr)) { result.verdict = ADDRXLAT_ACCEPT; /* No, that's not a typo. */ result.reason = "The resulting address (%pI4) is blacklist4ed"; return result; } success: if (must_not_translate(&out->addr, instance->ns)) { result.verdict = ADDRXLAT_ACCEPT; result.reason = "The resulting address is subnet-scoped or belongs to a local interface"; return result; } result.verdict = ADDRXLAT_CONTINUE; result.reason = NULL; return result; } struct addrxlat_result addrxlat_siit46(struct xlator *instance, __be32 in, struct result_addrxlat46 *out, bool enable_eam, bool enable_blacklists) { struct in_addr tmp = { .s_addr = in }; struct addrxlat_result result; int error; if (enable_blacklists) { if (must_not_translate(&tmp, instance->ns)) { result.verdict = ADDRXLAT_ACCEPT; result.reason = "The address is subnet-scoped or belongs to a local interface"; return result; } } if (enable_eam) { error = eamt_xlat_4to6(instance->siit.eamt, &tmp, out); if (!error) goto success; if (error != -ESRCH) return programming_error(); } if (enable_blacklists) { if (blacklist4_contains(instance->siit.blacklist4, &tmp)) { result.verdict = ADDRXLAT_ACCEPT; result.reason = "The address lacks EAMT entry and is blacklist4ed"; return result; } } if (!instance->globals.pool6.set) { result.verdict = ADDRXLAT_TRY_SOMETHING_ELSE; result.reason = "The address lacks EAMT entry and there's no pool6 prefix"; return result; } error = rfc6052_4to6(&instance->globals.pool6.prefix, &tmp, out); if (error) return programming_error(); success: result.verdict = ADDRXLAT_CONTINUE; result.reason = NULL; return result; } jool-4.0.7/src/mod/common/stats.h0000664000175000017500000000117313576247347013601 00000000000000#ifndef SRC_MOD_COMMON_STATS_H_ #define SRC_MOD_COMMON_STATS_H_ #include "common/stats.h" #include "mod/common/packet.h" struct jool_stats; struct jool_stats *jstat_alloc(void); void jstat_get(struct jool_stats *stats); void jstat_put(struct jool_stats *stats); void jstat_inc(struct jool_stats *stats, enum jool_stat_id stat); void jstat_dec(struct jool_stats *stats, enum jool_stat_id stat); void jstat_add(struct jool_stats *stats, enum jool_stat_id stat, int addend); __u64 *jstat_query(struct jool_stats *stats); #ifdef UNIT_TESTING int jstat_refcount(struct jool_stats *stats); #endif #endif /* SRC_MOD_COMMON_STATS_H_ */ jool-4.0.7/src/mod/common/rtrie.c0000664000175000017500000003634313576247347013572 00000000000000#include "mod/common/rtrie.h" #include #include "common/types.h" #include "mod/common/log.h" #include "mod/common/rcu.h" #include "mod/common/wkmalloc.h" #define deref_reader(node) \ rcu_dereference_bh(node) #define deref_updater(trie, node) \ rcu_dereference_protected(node, lockdep_is_held(trie->lock)) #define deref_both(trie, node) \ rcu_dereference_bh_check(node, lockdep_is_held(trie->lock)) /** * Returns the number of bytes you need to be able to store @bits bits. * * Basically `ceiling(bits / 8)`. */ static __u8 bits_to_bytes(__u8 bits) { return (bits != 0u) ? (((bits - 1u) >> 3) + 1u) : 0u; } static struct rtrie_node *create_inode(struct rtrie_key *key, struct rtrie_node *left_child, struct rtrie_node *right_child) { struct rtrie_node *inode; __u8 key_len; key_len = bits_to_bytes(key->len); inode = __wkmalloc("Rtrie node", sizeof(*inode) + key_len, GFP_ATOMIC); if (!inode) return NULL; RCU_INIT_POINTER(inode->left, left_child); RCU_INIT_POINTER(inode->right, right_child); inode->parent = NULL; inode->color = COLOR_BLACK; INIT_LIST_HEAD(&inode->list_hook); inode->key.bytes = (__u8 *) (inode + 1); inode->key.len = key->len; memcpy(inode->key.bytes, key->bytes, key_len); return inode; } static struct rtrie_node *create_leaf(void *content, size_t content_len, size_t key_offset, __u8 key_len) { struct rtrie_node *leaf; leaf = __wkmalloc("Rtrie node", sizeof(*leaf) + content_len, GFP_ATOMIC); if (!leaf) return NULL; RCU_INIT_POINTER(leaf->left, NULL); RCU_INIT_POINTER(leaf->right, NULL); leaf->parent = NULL; leaf->color = COLOR_WHITE; INIT_LIST_HEAD(&leaf->list_hook); leaf->key.bytes = ((__u8 *) (leaf + 1)) + key_offset; leaf->key.len = key_len; memcpy(leaf + 1, content, content_len); return leaf; } /** * Zero-based, left to right. Eg. get_bit(0b00100000, 2) returns 1. */ static unsigned int get_bit(__u8 byte, unsigned int pos) { return (byte >> (7u - pos)) & 1u; } static unsigned int __key_match(struct rtrie_key *key1, struct rtrie_key *key2, unsigned int bits) { unsigned int result = 0; unsigned int y, i; /* b[y]te counter, b[i]t counter. */ unsigned int bytes; unsigned int bit1, bit2; bytes = bits >> 3; /* ">> 3" = "/ 8" */ bits &= 7; /* "& 7" = "% 8" */ for (y = 0; y < bytes; y++) { if (key1->bytes[y] != key2->bytes[y]) { bits = 8; break; } result += 8; } for (i = 0; i < bits; i++) { bit1 = get_bit(key1->bytes[y], i); bit2 = get_bit(key2->bytes[y], i); if (bit1 != bit2) break; result++; } return result; } /** * match - Returns the number of prefix bits @key1 and @key2 have in common. */ static unsigned int key_match(struct rtrie_key *key1, struct rtrie_key *key2) { return __key_match(key1, key2, min(key1->len, key2->len)); } /** * Returns true if @key1 is a prefix of @key2, false otherwise. * * The name can go both ways so it might be confusing. Think of it like this: * If @key1 is 2001:db8::/32 and @key2 is 2001:db8:1::/64, then @key1 contains * @key2. */ static bool key_contains(struct rtrie_key *key1, struct rtrie_key *key2) { return (key2->len >= key1->len) ? (__key_match(key1, key2, key1->len) == key1->len) : false; } static bool key_equals(struct rtrie_key *key1, struct rtrie_key *key2) { return (key1->len == key2->len) ? (__key_match(key1, key2, key1->len) == key1->len) : false; } void rtrie_init(struct rtrie *trie, size_t size, struct mutex *lock) { trie->root = NULL; INIT_LIST_HEAD(&trie->list); trie->value_size = size; trie->lock = lock; } void rtrie_clean(struct rtrie *trie) { struct rtrie_node *node; struct rtrie_node *tmp_node; unsigned int i = 0; /* rtrie_print("Destroying trie", trie); */ list_for_each_entry_safe(node, tmp_node, &trie->list, list_hook) { list_del(&node->list_hook); __wkfree("Rtrie node", node); i++; } log_debug("Deleted %u nodes.", i); /* rtrie_print("Trie after", trie); */ } /** * find_longest_common_prefix - Returns the node from @trie which best matches * @key. * * If you're a reader, you need to "lock" RCU reads before calling. * * @force_white: if true, the resulting node will be the best white match. * If false, the result will be the best match, regardless of color. */ static struct rtrie_node *find_longest_common_prefix(struct rtrie *trie, struct rtrie_key *key, bool force_white) { struct rtrie_node *node; struct rtrie_node *child; struct rtrie_node *last_white; node = deref_both(trie, trie->root); if (!node || !key_contains(&node->key, key)) return NULL; last_white = NULL; do { if (node->color == COLOR_WHITE) last_white = node; child = deref_both(trie, node->left); if (child && key_contains(&child->key, key)) { node = child; continue; } child = deref_both(trie, node->right); if (child && key_contains(&child->key, key)) { node = child; continue; } return force_white ? last_white : node; } while (true); return NULL; /* <-- Shuts up Eclipse. */ } /** * This must only be called by updater code. */ static struct rtrie_node __rcu **get_parent_ptr(struct rtrie *trie, struct rtrie_node *node) { struct rtrie_node *parent = node->parent; if (!parent) return &trie->root; return (deref_updater(trie, parent->left) == node) ? &parent->left : &parent->right; } static void swap_nodes(struct rtrie *trie, struct rtrie_node *old, struct rtrie_node *new) { struct rtrie_node __rcu **parent_ptr; new->left = old->left; new->right = old->right; new->parent = old->parent; parent_ptr = get_parent_ptr(trie, old); rcu_assign_pointer(*parent_ptr, new); list_add(&new->list_hook, &trie->list); list_del(&old->list_hook); __wkfree("Rtrie node", old); } static int add_to_root(struct rtrie *trie, struct rtrie_node *new) { struct rtrie_node *root = deref_updater(trie, trie->root); struct rtrie_node *inode; struct rtrie_key key; if (!root) { rcu_assign_pointer(trie->root, new); list_add(&new->list_hook, &trie->list); return 0; } if (key_contains(&new->key, &root->key)) { RCU_INIT_POINTER(new->left, root); root->parent = new; list_add(&new->list_hook, &trie->list); rcu_assign_pointer(trie->root, new); return 0; } key.bytes = new->key.bytes; key.len = key_match(&root->key, &new->key); inode = create_inode(&key, root, new); if (!inode) return -ENOMEM; root->parent = inode; new->parent = inode; list_add(&inode->list_hook, &trie->list); list_add(&new->list_hook, &trie->list); rcu_assign_pointer(trie->root, inode); return 0; } static int add_full_collision(struct rtrie *trie, struct rtrie_node *parent, struct rtrie_node *new) { /* * We're adding new to * * parent * | * +---- child1 * | * +---- child2 * * We need to turn it into this: * * parent * | * +---- smallest_prefix_node * | * +---- inode * | * +---- higher_prefix1 * | * +---- higher_prefix2 * * { smallest_prefix_node, higher_prefix1, higher_prefix2 } is some * combination from { child1, child2, new }. */ struct rtrie_node *left = deref_updater(trie, parent->left); struct rtrie_node *right = deref_updater(trie, parent->right); struct rtrie_node *smallest_prefix; struct rtrie_node *higher_prefix1; struct rtrie_node *higher_prefix2; struct rtrie_node *inode; struct rtrie_key inode_prefix; unsigned int match_lr = key_match(&left->key, &right->key); unsigned int match_ln = key_match(&left->key, &new->key); unsigned int match_rn = key_match(&right->key, &new->key); if (match_lr > match_ln && match_lr > match_rn) { smallest_prefix = new; higher_prefix1 = left; higher_prefix2 = right; inode_prefix.len = match_lr; } else if (match_ln > match_lr && match_ln > match_rn) { smallest_prefix = right; higher_prefix1 = new; higher_prefix2 = left; inode_prefix.len = match_ln; } else if (match_rn > match_lr && match_rn > match_ln) { smallest_prefix = left; higher_prefix1 = new; higher_prefix2 = right; inode_prefix.len = match_rn; } else { WARN(true, "Inconsistent bwrtrie! (%u %u %u)", match_lr, match_ln, match_rn); return -EINVAL; } inode_prefix.bytes = higher_prefix1->key.bytes; inode = create_inode(&inode_prefix, higher_prefix1, higher_prefix2); if (!inode) return -ENOMEM; rcu_assign_pointer(parent->left, NULL); rcu_assign_pointer(parent->right, NULL); synchronize_rcu_bh(); rcu_assign_pointer(parent->left, smallest_prefix); rcu_assign_pointer(parent->right, inode); smallest_prefix->parent = parent; inode->parent = parent; higher_prefix1->parent = inode; higher_prefix2->parent = inode; list_add(&inode->list_hook, &trie->list); list_add(&new->list_hook, &trie->list); return 0; } int rtrie_add(struct rtrie *trie, void *value, size_t key_offset, __u8 key_len) { struct rtrie_node *new; struct rtrie_node *parent; struct rtrie_node *left, *right; bool contains_left; bool contains_right; new = create_leaf(value, trie->value_size, key_offset, key_len); if (!new) return -ENOMEM; parent = find_longest_common_prefix(trie, &new->key, false); if (!parent) return add_to_root(trie, new); if (key_equals(&parent->key, &new->key)) { if (parent->color == COLOR_BLACK) { swap_nodes(trie, parent, new); return 0; } __wkfree("Rtrie node", new); return -EEXIST; } if (!parent->left) { rcu_assign_pointer(parent->left, new); goto simple_success; } if (!parent->right) { rcu_assign_pointer(parent->right, new); goto simple_success; } left = deref_updater(trie, parent->left); right = deref_updater(trie, parent->right); contains_left = key_contains(&new->key, &left->key); contains_right = key_contains(&new->key, &right->key); if (contains_left && contains_right) { if (parent->color == COLOR_BLACK) { swap_nodes(trie, parent, new); return 0; } RCU_INIT_POINTER(new->left, left); RCU_INIT_POINTER(new->right, right); rcu_assign_pointer(parent->left, NULL); rcu_assign_pointer(parent->right, NULL); synchronize_rcu_bh(); rcu_assign_pointer(parent->right, new); left->parent = new; right->parent = new; goto simple_success; } if (contains_left) { RCU_INIT_POINTER(new->left, left); rcu_assign_pointer(parent->left, new); left->parent = new; goto simple_success; } if (contains_right) { RCU_INIT_POINTER(new->right, right); rcu_assign_pointer(parent->right, new); right->parent = new; goto simple_success; } return add_full_collision(trie, parent, new); simple_success: new->parent = parent; list_add(&new->list_hook, &trie->list); return 0; } /** * rtrie_find - Finds the node keyed @key, and copies its value to @result. */ int rtrie_find(struct rtrie *trie, struct rtrie_key *key, void *result) { struct rtrie_node *node; rcu_read_lock_bh(); node = find_longest_common_prefix(trie, key, true); if (!node) { rcu_read_unlock_bh(); return -ESRCH; } memcpy(result, node + 1, trie->value_size); rcu_read_unlock_bh(); return 0; } bool rtrie_contains(struct rtrie *trie, struct rtrie_key *key) { bool result; rcu_read_lock_bh(); result = !!find_longest_common_prefix(trie, key, true); rcu_read_unlock_bh(); return result; } bool rtrie_is_empty(struct rtrie *trie) { bool result; rcu_read_lock_bh(); result = !!deref_reader(trie->root); rcu_read_unlock_bh(); return result; } int rtrie_rm(struct rtrie *trie, struct rtrie_key *key) { struct rtrie_node *node; struct rtrie_node *new; struct rtrie_node *parent; struct rtrie_node __rcu **parent_ptr; node = find_longest_common_prefix(trie, key, true); if (!node || !key_equals(&node->key, key)) return -ESRCH; if (node->left && node->right) { new = create_inode(&node->key, deref_updater(trie, node->left), deref_updater(trie, node->right)); if (!new) return -ENOMEM; parent = node->parent; parent_ptr = get_parent_ptr(trie, node); rcu_assign_pointer(*parent_ptr, new); synchronize_rcu_bh(); deref_updater(trie, new->left)->parent = new; deref_updater(trie, new->right)->parent = new; list_add(&new->list_hook, &trie->list); list_del(&node->list_hook); __wkfree("Rtrie node", node); return 0; } /* Keep pruning unnecessary nodes. */ do { /* * At this point, node cannot have two children, * so it's going down. */ parent = node->parent; parent_ptr = get_parent_ptr(trie, node); if (node->left) { rcu_assign_pointer(*parent_ptr, node->left); synchronize_rcu_bh(); deref_updater(trie, node->left)->parent = parent; list_del(&node->list_hook); __wkfree("Rtrie node", node); return 0; } if (node->right) { rcu_assign_pointer(*parent_ptr, node->right); synchronize_rcu_bh(); deref_updater(trie, node->right)->parent = parent; list_del(&node->list_hook); __wkfree("Rtrie node", node); return 0; } rcu_assign_pointer(*parent_ptr, NULL); synchronize_rcu_bh(); list_del(&node->list_hook); __wkfree("Rtrie node", node); node = parent; } while (node && node->color == COLOR_BLACK); return 0; } void rtrie_flush(struct rtrie *trie) { struct rtrie_node *node; struct rtrie_node *tmp_node; struct list_head tmp_list; unsigned int i = 0; /* rtrie_print("Flushing trie", trie); */ if (!deref_updater(trie, trie->root)) goto end; rcu_assign_pointer(trie->root, NULL); list_replace_init(&trie->list, &tmp_list); synchronize_rcu_bh(); list_for_each_entry_safe(node, tmp_node, &tmp_list, list_hook) { list_del(&node->list_hook); __wkfree("Rtrie node", node); i++; } end: log_debug("Deleted %u nodes.", i); /* rtrie_print("Trie after", trie); */ } /** * TODO (performance) find offset using a normal trie find. */ int rtrie_foreach(struct rtrie *trie, rtrie_foreach_cb cb, void *arg, struct rtrie_key *offset) { struct rtrie_node *node; int error; if (list_empty(&trie->list)) return 0; list_for_each_entry(node, &trie->list, list_hook) { if (offset) { if (key_equals(offset, &node->key)) offset = NULL; } else if (node->color == COLOR_WHITE) { error = cb(node + 1, arg); if (error) return error; } } return offset ? -ESRCH : 0; } static char *color2str(enum rtrie_color color) { switch (color) { case COLOR_WHITE: return "w"; case COLOR_BLACK: return "b"; } return "u"; } static void print_node(struct rtrie_node *node, unsigned int level) { unsigned int i, j; unsigned int remainder; if (!node) return; for (i = 0; i < level; i++) printk("| "); printk("(%s) ", color2str(node->color)); for (i = 0; i < (node->key.len >> 3); i++) printk("%02x", node->key.bytes[i]); remainder = node->key.len & 7u; if (remainder) { printk(" "); for (j = 0; j < remainder; j++) printk("%u", (node->key.bytes[i] >> (7u - j)) & 1u); } printk(" (/%u)", node->key.len); printk(" %p %p %p", &node->list_hook, node->list_hook.prev, node->list_hook.next); printk("\n"); print_node(deref_reader(node->left), level + 1); print_node(deref_reader(node->right), level + 1); } /** * rtrie_print - print the trie in dmesg. * * This function is recursive. Do not use in production code. */ void rtrie_print(char *prefix, struct rtrie *trie) { struct rtrie_node *root; printk(KERN_DEBUG "%s:\n", prefix); printk("-----------------------\n"); printk("root: %p %p %p\n", &trie->list, trie->list.prev, trie->list.next); rcu_read_lock_bh(); root = deref_reader(trie->root); if (root) { print_node(root, 0); } else { printk(" (empty)\n"); } rcu_read_unlock_bh(); printk("-----------------------\n"); } jool-4.0.7/src/mod/common/skbuff.h0000664000175000017500000000026513576247347013724 00000000000000#ifndef SRC_MOD_COMMON_SKBUFF_H_ #define SRC_MOD_COMMON_SKBUFF_H_ #include void skb_log(struct sk_buff *skb, char *label); #endif /* SRC_MOD_COMMON_SKBUFF_H_ */ jool-4.0.7/src/mod/common/address.c0000664000175000017500000001545313576247347014071 00000000000000#include "mod/common/address.h" #include #include "common/types.h" #include "mod/common/log.h" int str_to_addr4(const char *str, struct in_addr *result) { return in4_pton(str, -1, (u8 *) result, '\0', NULL) ? 0 : -EINVAL; } int str_to_addr6(const char *str, struct in6_addr *result) { return in6_pton(str, -1, (u8 *) result, '\0', NULL) ? 0 : -EINVAL; } int prefix6_parse(char *str, struct ipv6_prefix *result) { const char *slash_pos; if (in6_pton(str, -1, (u8 *)&result->addr.s6_addr, '/', &slash_pos) != 1) goto fail; if (kstrtou8(slash_pos + 1, 0, &result->len) != 0) goto fail; return 0; fail: log_err("IPv6 prefix is malformed: %s.", str); return -EINVAL; } int prefix4_parse(char *str, struct ipv4_prefix *result) { const char *slash_pos; if (strchr(str, '/') != NULL) { if (in4_pton(str, -1, (u8 *)&result->addr, '/', &slash_pos) != 1) goto fail; if (kstrtou8(slash_pos + 1, 0, &result->len) != 0) goto fail; } else { if (in4_pton(str, -1, (u8 *)&result->addr, '\0', NULL) != 1) goto fail; result->len = 32; } return 0; fail: log_err("IPv4 prefix or address is malformed: %s.", str); return -EINVAL; } bool taddr6_equals(const struct ipv6_transport_addr *a, const struct ipv6_transport_addr *b) { return addr6_equals(&a->l3, &b->l3) && (a->l4 == b->l4); } bool taddr4_equals(const struct ipv4_transport_addr *a, const struct ipv4_transport_addr *b) { return addr4_equals(&a->l3, &b->l3) && (a->l4 == b->l4); } bool prefix6_equals(const struct ipv6_prefix *a, const struct ipv6_prefix *b) { return addr6_equals(&a->addr, &b->addr) && (a->len == b->len); } bool prefix4_equals(const struct ipv4_prefix *a, const struct ipv4_prefix *b) { return addr4_equals(&a->addr, &b->addr) && (a->len == b->len); } __u32 get_prefix4_mask(const struct ipv4_prefix *prefix) { return ((__u64) 0xffffffffU) << (32 - prefix->len); } bool prefix4_contains(const struct ipv4_prefix *prefix, const struct in_addr *addr) { __u32 maskbits = get_prefix4_mask(prefix); __u32 prefixbits = be32_to_cpu(prefix->addr.s_addr) & maskbits; __u32 addrbits = be32_to_cpu(addr->s_addr) & maskbits; return prefixbits == addrbits; } bool prefix4_intersects(const struct ipv4_prefix *p1, const struct ipv4_prefix *p2) { return prefix4_contains(p1, &p2->addr) || prefix4_contains(p2, &p1->addr); } __u64 prefix4_get_addr_count(const struct ipv4_prefix *prefix) { return ((__u64) 1U) << (32 - prefix->len); } bool prefix6_contains(const struct ipv6_prefix *prefix, const struct in6_addr *addr) { return ipv6_prefix_equal(&prefix->addr, addr, prefix->len); } int prefix4_validate(const struct ipv4_prefix *prefix) { __u32 suffix_mask; if (unlikely(!prefix)) { log_err("Prefix is NULL."); return -EINVAL; } if (prefix->len > 32) { log_err("Prefix length %u is too high.", prefix->len); return -EINVAL; } suffix_mask = ~get_prefix4_mask(prefix); if ((be32_to_cpu(prefix->addr.s_addr) & suffix_mask) != 0) { log_err("'%pI4/%u' seems to have a suffix; please fix.", &prefix->addr, prefix->len); return -EINVAL; } return 0; } int prefix6_validate(const struct ipv6_prefix *prefix) { unsigned int i; if (unlikely(!prefix)) { log_err("Prefix is NULL."); return -EINVAL; } if (prefix->len > 128) { log_err("Prefix length %u is too high.", prefix->len); return -EINVAL; } for (i = prefix->len; i < 128; i++) { if (addr6_get_bit(&prefix->addr, i)) { log_err("'%pI6c/%u' seems to have a suffix; please fix.", &prefix->addr, prefix->len); return -EINVAL; } } return 0; } int prefix4_validate_scope(struct ipv4_prefix *prefix, bool force) { struct ipv4_prefix subnet; if (!force && prefix4_has_subnet_scope(prefix, &subnet)) { log_err("Prefix %pI4/%u intersects with subnet scoped network %pI4/%u.", &prefix->addr, prefix->len, &subnet.addr, subnet.len); log_err("Will cancel the operation. Use --force to ignore this validation."); return -EINVAL; } return 0; } __u32 addr4_get_bit(const struct in_addr *addr, unsigned int pos) { __u32 mask = 1U << (31 - pos); return be32_to_cpu(addr->s_addr) & mask; } void addr4_set_bit(struct in_addr *addr, unsigned int pos, bool value) { __u32 mask = 1U << (31 - pos); if (value) addr->s_addr |= cpu_to_be32(mask); else addr->s_addr &= cpu_to_be32(~mask); } __u32 addr6_get_bit(const struct in6_addr *addr, unsigned int pos) { __u32 quadrant; /* As in, @addr has 4 "quadrants" of 32 bits each. */ __u32 mask; /* "pos >> 5" is a more efficient version of "pos / 32". */ quadrant = be32_to_cpu(addr->s6_addr32[pos >> 5]); /* "pos & 0x1FU" is a more efficient version of "pos % 32". */ mask = 1U << (31 - (pos & 0x1FU)); return quadrant & mask; } void addr6_set_bit(struct in6_addr *addr, unsigned int pos, bool value) { __be32 *quadrant; __u32 mask; quadrant = &addr->s6_addr32[pos >> 5]; mask = 1U << (31 - (pos & 0x1FU)); if (value) *quadrant |= cpu_to_be32(mask); else *quadrant &= cpu_to_be32(~mask); } __u64 prefix4_next(const struct ipv4_prefix *prefix) { return prefix4_get_addr_count(prefix) + (__u64) be32_to_cpu(prefix->addr.s_addr); } /** * addr4_has_scope_subnet - returns true if @addr has low scope ("this" subnet * or lower), and therefore should not be translated under any circumstances. */ bool addr4_is_scope_subnet(const __be32 addr) { /* * I'm assuming private and doc networks do not belong to this category, * to facilitate testing. * (particularly users following the tutorials verbatim.) */ return ipv4_is_zeronet(addr) || ipv4_is_loopback(addr) || ipv4_is_linklocal_169(addr) || ipv4_is_multicast(addr) || ipv4_is_lbcast(addr); } /** * prefix4_has_subnet_scope - returns true if @prefix intersects with one of the * low-scoped networks ("this" subnet or lower), false otherwise. * If @subnet is sent, the colliding subnet is copied to it. */ bool prefix4_has_subnet_scope(struct ipv4_prefix *prefix, struct ipv4_prefix *subnet) { struct ipv4_prefix subnets[] = { { .addr.s_addr = cpu_to_be32(0x00000000), .len = 8 }, { .addr.s_addr = cpu_to_be32(0x7f000000), .len = 8 }, { .addr.s_addr = cpu_to_be32(0xa9fe0000), .len = 16 }, { .addr.s_addr = cpu_to_be32(0xe0000000), .len = 4 }, { .addr.s_addr = cpu_to_be32(0xffffffff), .len = 32 }, }; unsigned int i; for (i = 0; i < ARRAY_SIZE(subnets); i++) { if (prefix4_intersects(prefix, &subnets[i])) { if (subnet) *subnet = subnets[i]; return true; } } return false; } int taddr6_compare(const struct ipv6_transport_addr *a1, const struct ipv6_transport_addr *a2) { int gap; gap = ipv6_addr_cmp(&a1->l3, &a2->l3); if (gap) return gap; return ((int)a1->l4) - ((int)a2->l4); } int taddr4_compare(const struct ipv4_transport_addr *a1, const struct ipv4_transport_addr *a2) { int gap; gap = ipv4_addr_cmp(&a1->l3, &a2->l3); if (gap) return gap; return ((int)a1->l4) - ((int)a2->l4); } jool-4.0.7/src/mod/common/wkmalloc.c0000664000175000017500000000500613576247347014246 00000000000000/** * This is exactly the same as kmemleak. * https://www.kernel.org/doc/Documentation/kmemleak.txt * I didn't want to recompile the kernel yet again so I made this. * It's nowhere near as good but it took much less time. Sorry. * * Include in the compilation by adding JKMEMLEAK to Jool's variables. * * make JOOL_FLAGS=-DJKMEMLEAK * * Will print a report when you modprobe -r. */ #ifdef JKMEMLEAK #include "mod/common/wkmalloc.h" #include "mod/common/rbtree.h" struct kmalloc_entry { unsigned int count; struct rb_node hook; }; static DEFINE_SPINLOCK(lock); struct rb_root tree = RB_ROOT; static struct kmalloc_entry *kmn_entry(struct rb_node *hook) { return rb_entry(hook, struct kmalloc_entry, hook); } static char *kmn_name(struct kmalloc_entry *entry) { return (char *)(entry + 1); } static int cmp_node(struct rb_node *n1, struct rb_node *n2) { return strcmp(kmn_name(kmn_entry(n1)), kmn_name(kmn_entry(n2))); } void wkmalloc_add(const char *name) { struct tree_slot slot; struct kmalloc_entry *entry; struct rb_node *collision; entry = kmalloc(sizeof(struct kmalloc_entry) + strlen(name) + 1, GFP_ATOMIC); if (WARN(!entry, "could not allocate a tracker.")) return; entry->count = 1; strcpy(kmn_name(entry), name); spin_lock_bh(&lock); treeslot_init(&slot, &tree, &entry->hook); collision = rbtree_find_slot(&entry->hook, &tree, cmp_node, &slot); if (collision) { kfree(entry); entry = kmn_entry(collision); entry->count++; } else { treeslot_commit(&slot); } spin_unlock_bh(&lock); } static int cmp_kmn(struct kmalloc_entry *entry, const char *str) { return strcmp(kmn_name(entry), str); } void wkmalloc_rm(const char *name, void *obj) { struct kmalloc_entry *entry; if (!obj) return; spin_lock_bh(&lock); entry = rbtree_find(name, &tree, cmp_kmn, struct kmalloc_entry, hook); if (!WARN(!entry, "Freeing out-of-tree object.")) { if (!WARN(entry->count == 0, "Freeing unallocated object.")) entry->count--; } spin_unlock_bh(&lock); } void wkmalloc_print_leaks(void) { struct rb_node *node; struct kmalloc_entry *entry; unsigned int leaks = 0; log_info("Memory leaks:"); for (node = rb_first(&tree); node; node = rb_next(node)) { entry = kmn_entry(node); if (entry->count > 0) { log_info("- %s: %d", kmn_name(entry), entry->count); leaks++; } } if (!leaks) log_info("None."); } void destroy_node(struct rb_node *node, void *arg) { kfree(kmn_entry(node)); } void wkmalloc_teardown(void) { rbtree_clear(&tree, destroy_node, NULL); } #endif /* JKMEMLEAK */ jool-4.0.7/src/mod/common/tags.h0000664000175000017500000000262113576247347013400 00000000000000#ifndef SRC_MOD_COMMON_TAGS_H_ #define SRC_MOD_COMMON_TAGS_H_ /** * @file * The macros defined in this file do nothing whatsoever. They only exist to * help me review the code. * * Feel free to purge this if the code leaves my care. */ /** * Tagged function doesn't need care about concurrence at all. * * - Usable anywhere. * - GFP_KERNEL is not allowed. * * Can only call fellow RCUTAG_FREE functions. */ #define RCUTAG_FREE /** * Tagged function is an RCU reader. * * - Usable during packet processing. * - GFP_KERNEL is not allowed. * * Can call fellow RCUTAG_PKT and RCUTAG_FREE functions. */ #define RCUTAG_PKT /** * Tagged function has to be used in process context. Typically, these are * userspace request handlers. * * - Cannot be used during packet processing. * - GFP_KERNEL is allowed. * * Can call anything except RCUTAG_INIT. */ #define RCUTAG_USR /** * Marked function always runs in isolation. These also don't have to worry * about concurrence. * (They still might use some concurrence API functions to prevent sparse's * nagging.) * * I get the feeling people is going to raise eyebrows at this so try to upgrade * __INITs into _USRs (even if they always run in isolation) as much as * possible. * * - Must be called during module load/unload only. * - GFP_KERNEL is allowed. * * Can call anything. */ #define RCUTAG_INIT #endif /* SRC_MOD_COMMON_TAGS_H_ */ jool-4.0.7/src/mod/common/route_out.c0000664000175000017500000001237713576247347014473 00000000000000#include "mod/common/route.h" #include #include #include #include #include "mod/common/ipv6_hdr_iterator.h" #include "mod/common/log.h" /** * Callers of this function need to mind hairpinning. What happens if @daddr * belongs to the translator? * * The @pkt can be NULL. If this happens, make sure the resulting dst is * dst_release()d. */ struct dst_entry *__route4(struct route4_args *args, struct sk_buff *skb) { struct flowi4 flow; struct rtable *table; struct dst_entry *dst; /* * Sometimes Jool needs to route prematurely, * so don't sweat this on the normal pipelines. */ if (skb) { dst = skb_dst(skb); if (dst) return dst; } /** * The flowi's XFRM fields don't matter because "any protocols that * protect IP header information are essentially incompatible with * NAT64" (RFC 6146). */ memset(&flow, 0, sizeof(flow)); /* flow.flowi4_oif; */ /* flow.flowi4_iif; */ flow.flowi4_mark = args->mark; flow.flowi4_tos = args->tos; flow.flowi4_scope = RT_SCOPE_UNIVERSE; flow.flowi4_proto = args->proto; /* * TODO (help) Don't know if we should set FLOWI_FLAG_PRECOW_METRICS. * Does the kernel ever create routes on Jool's behalf? * TODO (help) We should probably set FLOWI_FLAG_ANYSRC (for * virtual-interfaceless support). If you change it, the corresponding * attribute in route6() should probably follow. */ flow.flowi4_flags = 0; /* Only used by XFRM ATM (kernel/Documentation/networking/secid.txt). */ /* flow.flowi4_secid; */ /* It appears this one only introduces harmful noise. */ /* flow.saddr = saddr; */ flow.daddr = args->daddr.s_addr; /* * I'm no longer setting fl4_sport, fl4_dport, fl4_icmp_type nor * fl4_icmp_code because 1) not all callers of this function have set * the respective fields yet, and 2) I can't find any users of them * aside from XFRM code. */ /* * I'm using neither ip_route_output_key() nor ip_route_output_flow() * because they only add XFRM overhead. */ table = __ip_route_output_key(args->ns, &flow); if (!table || IS_ERR(table)) { log_debug("__ip_route_output_key() returned %ld. Cannot route packet.", PTR_ERR(table)); return NULL; } dst = &table->dst; if (dst->error) { log_debug("__ip_route_output_key() returned error %d. Cannot route packet.", dst->error); dst_release(dst); return NULL; } if (!dst->dev) { log_debug("I found a dst entry with no dev; I don't know what to do."); dst_release(dst); return NULL; } log_debug("Packet routed via device '%s'.", dst->dev->name); if (skb) { skb_dst_set(skb, dst); /* TODO (final) maybe used due to route_input + hairpinning? */ /* pkt->skb->dev = dst->dev; */ } return dst; } struct dst_entry *route4(struct net *ns, struct packet *out) { struct iphdr *hdr = pkt_ip4_hdr(out); struct route4_args args = { .ns = ns, .daddr.s_addr = hdr->daddr, .tos = hdr->tos, .proto = hdr->protocol, .mark = out->skb->mark, }; return __route4(&args, out->skb); } struct dst_entry *__route6(struct net *ns, struct sk_buff *skb, l4_protocol proto) { struct ipv6hdr *hdr_ip = ipv6_hdr(skb); struct flowi6 flow; struct dst_entry *dst; struct hdr_iterator iterator; dst = skb_dst(skb); if (dst) return dst; hdr_iterator_init(&iterator, hdr_ip); hdr_iterator_last(&iterator); memset(&flow, 0, sizeof(flow)); /* flow->flowi6_oif; */ /* flow->flowi6_iif; */ flow.flowi6_mark = skb->mark; /* * BTW: They removed this because nobody was using it. * https://github.com/torvalds/linux/commit/69716a2b51aeb68fe295c0d09e26c8781eacebde * Perhaps we don't gain anything from it either. */ #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0) flow.flowi6_tos = get_traffic_class(hdr_ip); #endif flow.flowi6_scope = RT_SCOPE_UNIVERSE; flow.flowi6_proto = iterator.hdr_type; flow.flowi6_flags = 0; /* flow->flowi6_secid; */ flow.saddr = hdr_ip->saddr; flow.daddr = hdr_ip->daddr; flow.flowlabel = get_flow_label(hdr_ip); { union { struct tcphdr *tcp; struct udphdr *udp; struct icmp6hdr *icmp6; } hdr; switch (proto) { case L4PROTO_TCP: hdr.tcp = tcp_hdr(skb); flow.fl6_sport = hdr.tcp->source; flow.fl6_dport = hdr.tcp->dest; break; case L4PROTO_UDP: hdr.udp = udp_hdr(skb); flow.fl6_sport = hdr.udp->source; flow.fl6_dport = hdr.udp->dest; break; case L4PROTO_ICMP: hdr.icmp6 = icmp6_hdr(skb); flow.fl6_icmp_type = hdr.icmp6->icmp6_type; flow.fl6_icmp_code = hdr.icmp6->icmp6_code; break; case L4PROTO_OTHER: break; } } dst = ip6_route_output(ns, NULL, &flow); if (!dst) { log_debug("ip6_route_output() returned NULL. Cannot route packet."); return NULL; } if (dst->error) { log_debug("ip6_route_output() returned error %d. Cannot route packet.", dst->error); dst_release(dst); return NULL; } log_debug("Packet routed via device '%s'.", dst->dev->name); skb_dst_set(skb, dst); return dst; } struct dst_entry *route6(struct net *ns, struct packet *out) { return __route6(ns, out->skb, pkt_l4_proto(out)); } struct dst_entry *route(struct net *ns, struct packet *pkt) { switch (pkt_l3_proto(pkt)) { case L3PROTO_IPV6: return route6(ns, pkt); case L3PROTO_IPV4: return route4(ns, pkt); } WARN(true, "Unsupported network protocol: %u.", pkt_l3_proto(pkt)); return NULL; } jool-4.0.7/src/mod/common/wkmalloc.h0000664000175000017500000000232513576247347014254 00000000000000#ifndef SRC_MOD_COMMON_WKMALLOC_H_ #define SRC_MOD_COMMON_WKMALLOC_H_ #include #include "common/types.h" void wkmalloc_add(const char *name); void wkmalloc_rm(const char *name, void *obj); void wkmalloc_print_leaks(void); void wkmalloc_teardown(void); static inline void *__wkmalloc(const char *name, size_t size, gfp_t flags) { void *result; result = kmalloc(size, flags); #ifdef JKMEMLEAK if (result) wkmalloc_add(name); #endif return result; } /** * A "wrapped kernel memory allocation"; a wrapped kmalloc. */ #define wkmalloc(type, flags) __wkmalloc(#type, sizeof(type), flags) static inline void __wkfree(const char *name, void *obj) { kfree(obj); #ifdef JKMEMLEAK wkmalloc_rm(name, obj); #endif } #define wkfree(type, obj) __wkfree(#type, obj) static inline void *wkmem_cache_alloc(const char *name, struct kmem_cache *cache, gfp_t flags) { void *result; result = kmem_cache_alloc(cache, flags); #ifdef JKMEMLEAK if (result) wkmalloc_add(name); #endif return result; } static inline void wkmem_cache_free(const char *name, struct kmem_cache *cache, void *obj) { kmem_cache_free(cache, obj); #ifdef JKMEMLEAK wkmalloc_rm(name, obj); #endif } #endif /* SRC_MOD_COMMON_WKMALLOC_H_ */ jool-4.0.7/src/mod/common/wrapper-config.c0000664000175000017500000000003313576247347015353 00000000000000#include "common/config.c" jool-4.0.7/src/mod/common/nl/0000775000175000017500000000000013576247347012761 500000000000000jool-4.0.7/src/mod/common/nl/global.c0000664000175000017500000001304713576247347014312 00000000000000#include "mod/common/nl/global.h" #include #include "common/constants.h" #include "common/globals.h" #include "common/types.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/joold.h" #include "mod/common/db/bib/db.h" #include "mod/common/db/eam.h" static int handle_global_display(struct xlator *jool, struct genl_info *info) { struct globals config; bool pools_empty; log_debug("Returning 'Global' options."); memcpy(&config, &jool->globals, sizeof(config)); pools_empty = !jool->globals.pool6.set; if (xlator_is_siit(jool)) pools_empty &= eamt_is_empty(jool->siit.eamt); prepare_config_for_userspace(&config, pools_empty); return nlcore_respond_struct(info, &config, sizeof(config)); } /** * This consumes one global update request tuple from @request, and applies it * to @cfg. * * @request is assumed to be the payload of some request packet, which contains * a sequence of [field, value] tuples. ("field" is struct global_value and * "value" is the actual value, whose semantics are described by "field".) * Again, only one of those tuples will be consumed by this function. * * Returns * >= 0: Number of bytes consumed from the payload. (ie. the size of the tuple.) * < 0: Error code. */ int global_update(struct globals *cfg, xlator_type xt, bool force, struct global_value *request, size_t request_size) { struct global_field *field; unsigned int field_count; int error; if (request_size < sizeof(*request)) { log_err("The request is too small to contain a global_value header."); return -EINVAL; } /* Get the current metadata for the field we want to edit. */ get_global_fields(&field, &field_count); if (request->type >= field_count) { log_err("Request type index %u is out of bounds.", request->type); return -EINVAL; } field = &field[request->type]; if ((xt & XT_SIIT) && !(field->xt & XT_SIIT)) { log_err("Field %s is not available in SIIT.", field->name); return -EINVAL; } if ((xt & XT_NAT64) && !(field->xt & XT_NAT64)) { log_err("Field %s is not available in NAT64.", field->name); return -EINVAL; } if (field->type->size > (request_size - sizeof(*request))) { log_err("Invalid field size. Field %s (type %s) expects %zu bytes, %zu received.", field->name, field->type->name, field->type->size, request_size - sizeof(*request)); return -EINVAL; } error = 0; if (field->validate) error = field->validate(field, request + 1, force); else if (field->type->validate) error = field->type->validate(field, request + 1, force); if (error) return error; /* * Replace the one field that userspace is requesting in @cfg, * in a very ugly but effective way. */ memcpy(((void *)cfg) + field->offset, request + 1, field->type->size); return sizeof(*request) + field->type->size; } static int handle_global_update(struct xlator *jool, struct genl_info *info, struct request_hdr *hdr) { int error; log_debug("Updating 'Global' option."); /* * This is implemented as an atomic configuration run with only a single * globals modification. * * Why? * * First, I can't just modify the value directly because ongoing * translations could be using it. Making those values atomic is * awkward because not all of them are basic data types and atomic_t is * not exported to userspace. (struct globals needs to be.) * * Protecting the values by a spinlock is feasible but dirty and not * very performant. The translating code wants to query the globals * often and I don't think that locking all the time is very healthy. * * remain constant through a translation, because bad things might * happen if a value is queried at the beginning of the pipeline, some * stuff is done based on it, and a different value pops when queried * later. We could ask the code to query every value just once, but * really that's not intuitive and won't sit well for new coders. * * So really, we don't want to edit values. We want to replace the * entire structure via RCU so ongoing translations will keep their * current configurations and future ones will have the new config from * the beginning. * * Which leads to the second point: I don't want to protect * xlator.globals with RCU either because I don't want to lock RCU every * single time I want to query a global. Now I know that RCU-locking is * faster than spin-locking, but hear me out: * * We could just change the entire xlator. Not only because we already * need to support that for atomic configuration, but also because it * literally does not impose any additional synchronization rules * whatsoever for the translating code. The only overhead over replacing * only xlator.globals is that we need to allocate an extra xlator * during this operation. Which is not a recurrent operation at all. * * So let's STFU and do that. */ /* * Notice that this @jool is also a clone and we're the only thread * with access to it. */ error = global_update(&jool->globals, xlator_get_type(jool), hdr->force, (struct global_value *)(hdr + 1), nla_len(info->attrs[ATTR_DATA]) - sizeof(*hdr)); return nlcore_respond(info, (error < 0) ? error : xlator_replace(jool)); } int handle_global_config(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); switch (hdr->operation) { case OP_FOREACH: return handle_global_display(jool, info); case OP_UPDATE: return handle_global_update(jool, info, hdr); } log_err("Unknown operation: %u", hdr->operation); return nlcore_respond(info, -EINVAL); } jool-4.0.7/src/mod/common/nl/joold.h0000664000175000017500000000036213576247347014162 00000000000000#ifndef SRC_MOD_COMMON_NL_JOOLD_H_ #define SRC_MOD_COMMON_NL_JOOLD_H_ #include #include "mod/common/xlator.h" int handle_joold_request(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_JOOLD_H_ */ jool-4.0.7/src/mod/common/nl/address.h0000664000175000017500000000037013576247347014477 00000000000000#ifndef SRC_MOD_COMMON_NL_ADDRESS_H_ #define SRC_MOD_COMMON_NL_ADDRESS_H_ #include #include "mod/common/xlator.h" int handle_address_query(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_ADDRESS_H_ */ jool-4.0.7/src/mod/common/nl/global.h0000664000175000017500000000062613576247347014316 00000000000000#ifndef SRC_MOD_COMMON_NL_GLOBAL_H_ #define SRC_MOD_COMMON_NL_GLOBAL_H_ #include #include "mod/common/xlator.h" int handle_global_config(struct xlator *jool, struct genl_info *info); /* Helper for atomic configuration. */ int global_update(struct globals *cfg, xlator_type xt, bool force, struct global_value *request, size_t request_size); #endif /* SRC_MOD_COMMON_NL_GLOBAL_H_ */ jool-4.0.7/src/mod/common/nl/atomic_config.h0000664000175000017500000000037213576247347015655 00000000000000#ifndef SRC_MOD_COMMON_NL_ATOMIC_CONFIG_H_ #define SRC_MOD_COMMON_NL_ATOMIC_CONFIG_H_ #include #include "mod/common/xlator.h" int handle_atomconfig_request(struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_ATOMIC_CONFIG_H_ */ jool-4.0.7/src/mod/common/nl/nl_handler.c0000664000175000017500000001774113576247347015165 00000000000000#include "mod/common/nl/nl_handler.h" #include #include #include #include "common/types.h" #include "mod/common/init.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/xlator.h" #include "mod/common/nl/address.h" #include "mod/common/nl/atomic_config.h" #include "mod/common/nl/bib.h" #include "mod/common/nl/blacklist4.h" #include "mod/common/nl/eam.h" #include "mod/common/nl/global.h" #include "mod/common/nl/instance.h" #include "mod/common/nl/joold.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/nl/pool4.h" #include "mod/common/nl/session.h" #include "mod/common/nl/stats.h" static struct genl_multicast_group mc_groups[1] = { { .name = GNL_JOOLD_MULTICAST_GRP_NAME, #if LINUX_VERSION_LOWER_THAN(3, 13, 0, 7, 1) .id = JOOLD_MC_ID, #endif }, }; /** * Actual message type definition. */ static struct genl_ops ops[] = { { .cmd = JOOL_COMMAND, .doit = handle_jool_message, .dumpit = NULL, }, }; static struct genl_family jool_family = { #if LINUX_VERSION_LOWER_THAN(4, 10, 0, 7, 5) /* This variable became "private" on kernel 4.10. */ .id = GENL_ID_GENERATE, #endif .hdrsize = 0, /* This is initialized below. See register_family(). */ /* .name = GNL_JOOL_FAMILY_NAME, */ .version = 1, .maxattr = __ATTR_MAX, .netnsok = true, /* * In kernel 3.10, they added a variable here called "parallel_ops". * Documentation about it can be found in Linux's commit * def3117493eafd9dfa1f809d861e0031b2cc8a07. * It appears to be an attempt to free genetlink users from the task of * locking. * We need to support older kernels, so we need to lock anyway, so this * feature is of no use to us. */ /* * "pre_doit" and "post_doit" are a pain in the ass; there is no doit * function so I have no idea. Whatever; they can be null. Fuck 'em. */ #if LINUX_VERSION_AT_LEAST(4, 10, 0, 7, 5) /* * "module" was added in Linux 3.11 (commit * 33c6b1f6b154894321f5734e50c66621e9134e7e). However, it seems to be * supposed to be private; it is set automatically during the * genl_register* functions. It is also sorta grouped with the other * private members. * "module" becomes our responsibility during commit * 489111e5c25b93be80340c3113d71903d7c82136, which is headed towards * Linux 4.10. * The same can be said about the remaining fields, though they are more * clearly private until 4.10. */ .module = THIS_MODULE, .ops = ops, .n_ops = ARRAY_SIZE(ops), .mcgrps = mc_groups, .n_mcgrps = ARRAY_SIZE(mc_groups), #endif }; static DEFINE_MUTEX(config_mutex); static int validate_magic(struct request_hdr *hdr) { if (hdr->magic[0] != 'j' || hdr->magic[1] != 'o') goto fail; if (hdr->magic[2] != 'o' || hdr->magic[3] != 'l') goto fail; return 0; fail: /* Well, the sender does not understand the protocol. */ log_err("The userspace client's request lacks the Jool magic text."); return -EINVAL; } static int validate_stateness(struct request_hdr *hdr) { switch (hdr->xt) { case XT_SIIT: if (is_siit_enabled()) return 0; log_err("SIIT Jool has not been modprobed. (Try `modprobe jool_siit`)"); return -EINVAL; case XT_NAT64: if (is_nat64_enabled()) return 0; log_err("NAT64 Jool has not been modprobed. (Try `modprobe jool`)"); return -EINVAL; } log_err(XT_VALIDATE_ERRMSG); return -EINVAL; } static int validate_version(struct request_hdr *hdr) { __u32 hdr_version = ntohl(hdr->version); if (xlat_version() == hdr_version) return 0; log_err("Version mismatch. The userspace client's version is %u.%u.%u.%u,\n" "but the kernel module is %u.%u.%u.%u.\n" "Please update the %s.", hdr_version >> 24, (hdr_version >> 16) & 0xFFU, (hdr_version >> 8) & 0xFFU, hdr_version & 0xFFU, JOOL_VERSION_MAJOR, JOOL_VERSION_MINOR, JOOL_VERSION_REV, JOOL_VERSION_DEV, (xlat_version() > hdr_version) ? "userspace client" : "kernel module"); return -EINVAL; } static int validate_request(void *data, size_t data_len, bool *peer_is_jool) { int error; if (peer_is_jool) *peer_is_jool = false; if (data_len < sizeof(struct request_hdr)) { log_err("Message from the userspace client is smaller than Jool's header."); return -EINVAL; } error = validate_magic(data); if (error) return error; if (peer_is_jool) *peer_is_jool = true; error = validate_stateness(data); if (error) return error; return validate_version(data); } static int validate_genl_attrs(struct genl_info *info) { /* * I smell a need for another genl refactor. * Damn it, this thing is so hard to nail right. */ if (info->attrs == NULL || info->attrs[ATTR_DATA] == NULL) { log_err("Malformed request. Most likely, the client is not Jool, or its version is pre-4.0. I can't even respond. Sorry."); return -EINVAL; } return 0; } static int multiplex_request(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); switch (hdr->mode) { case MODE_ADDRESS: return handle_address_query(jool, info); case MODE_STATS: return handle_stats_config(jool, info); case MODE_GLOBAL: return handle_global_config(jool, info); case MODE_EAMT: return handle_eamt_config(jool, info); case MODE_BLACKLIST: return handle_blacklist4_config(jool, info); case MODE_POOL4: return handle_pool4_config(jool, info); case MODE_BIB: return handle_bib_config(jool, info); case MODE_SESSION: return handle_session_config(jool, info); case MODE_JOOLD: return handle_joold_request(jool, info); default: log_err("Unknown configuration mode: %d", hdr->mode); return nlcore_respond(info, -EINVAL); } } static int __handle_jool_message(struct genl_info *info) { struct request_hdr *hdr; struct xlator jool; bool client_is_jool; int error; error = validate_genl_attrs(info); if (error) return error; if (verify_superpriv()) return nlcore_respond(info, -EPERM); log_debug("==============================================="); log_debug("Received a request from userspace."); error = validate_request(nla_data(info->attrs[ATTR_DATA]), nla_len(info->attrs[ATTR_DATA]), &client_is_jool); if (error) return client_is_jool ? nlcore_respond(info, error) : error; hdr = get_jool_hdr(info); switch (hdr->mode) { case MODE_INSTANCE: return handle_instance_request(info); case MODE_PARSE_FILE: return handle_atomconfig_request(info); default: break; } error = xlator_find_current(get_iname(info), XF_ANY | hdr->xt, &jool); if (error == -ESRCH) { log_err("This namespace lacks an instance named '%s'.", get_iname(info)); return nlcore_respond(info, -ESRCH); } if (error) return nlcore_respond(info, error); error = multiplex_request(&jool, info); xlator_put(&jool); return error; } int handle_jool_message(struct sk_buff *skb, struct genl_info *info) { int error; mutex_lock(&config_mutex); error_pool_activate(); error = __handle_jool_message(info); error_pool_deactivate(); mutex_unlock(&config_mutex); return error; } static int register_family(void) { int error; log_debug("Registering Generic Netlink family..."); strcpy(jool_family.name, GNL_JOOL_FAMILY); #if LINUX_VERSION_LOWER_THAN(3, 13, 0, 7, 1) error = genl_register_family_with_ops(&jool_family, ops, ARRAY_SIZE(ops)); if (error) { log_err("Couldn't register family!"); return error; } error = genl_register_mc_group(&jool_family, &(mc_groups[0])); if (error) { log_err("Couldn't register multicast group!"); return error; } #elif LINUX_VERSION_LOWER_THAN(4, 10, 0, 7, 5) error = genl_register_family_with_ops_groups(&jool_family, ops, mc_groups); if (error) { log_err("Family registration failed: %d", error); return error; } #else error = genl_register_family(&jool_family); if (error) { log_err("Family registration failed: %d", error); return error; } #endif nlcore_setup(&jool_family, &mc_groups[0]); return 0; } int nlhandler_setup(void) { error_pool_setup(); return register_family(); } void nlhandler_teardown(void) { genl_unregister_family(&jool_family); error_pool_teardown(); } jool-4.0.7/src/mod/common/nl/nl_core.h0000664000175000017500000000455113576247347014500 00000000000000#ifndef SRC_MOD_COMMON_NL_CORE_H_ #define SRC_MOD_COMMON_NL_CORE_H_ #include #include #include "common/config.h" /** * Caller writes on the buffer. Once the buffer is full or the caller finishes * writing, the buffer is written into an skb and fetched. * * The caller does not work on the skb directly because: * * Rob had trouble making Generic Netlink work without attributes. It might be * impossible. We do not want to fetch attributes because we do not have any * warranty they will work the same in a different Linux kernel (which is * relevant in joold's case - the two NAT64s can be running in different * kernels). So what we did is use a single binary attribute. Userspace joold * unwraps the attribute and sends the binary data as is. The joold on the other * side should parse the data correctly because it is reasonable to expect * Jool's version to be the same. * * The problem with that is the binary blob needs to be ready by the time the * attribute is written into the packet. This is never the case for responses * to --display. In fact, it is also not true for joold. * * So we use a buffer to build the attribute content first and write the * attribute later. * * TODO (later) maybe find a way to do this without attributes? */ struct nlcore_buffer { __u16 len; __u16 capacity; void *data; }; void nlcore_setup(struct genl_family *new_family, struct genl_multicast_group *new_group); /* There's no nlcore_teardown; just destroy the family yourself. */ size_t nlbuffer_response_max_size(void); int nlbuffer_init_request(struct nlcore_buffer *buffer, struct request_hdr *hdr, size_t capacity); int nlbuffer_init_response(struct nlcore_buffer *buffer, struct genl_info *info, size_t capacity); void nlbuffer_clean(struct nlcore_buffer *buffer); int nlbuffer_write(struct nlcore_buffer *buffer, void const *data, size_t data_size); int nlbuffer_send(struct genl_info *info, struct nlcore_buffer *buffer); void nlbuffer_set_pending_data(struct nlcore_buffer *buffer, bool pending_data); void nlbuffer_set_errcode(struct nlcore_buffer *buffer, int error); int nlcore_respond_struct(struct genl_info *info, void *content, size_t content_len); int nlcore_respond(struct genl_info *info, int error); int nlcore_send_multicast_message(struct net *ns, struct nlcore_buffer *buffer); #endif /* SRC_MOD_COMMON_NL_CORE_H_ */ jool-4.0.7/src/mod/common/nl/pool4.h0000664000175000017500000000036113576247347014107 00000000000000#ifndef SRC_MOD_COMMON_NL_POOL4_H_ #define SRC_MOD_COMMON_NL_POOL4_H_ #include #include "mod/common/xlator.h" int handle_pool4_config(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_POOL4_H_ */ jool-4.0.7/src/mod/common/nl/eam.c0000664000175000017500000000512213576247347013607 00000000000000#include "mod/common/nl/eam.h" #include "common/types.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/db/eam.h" static int eam_entry_to_userspace(struct eamt_entry const *entry, void *arg) { struct nlcore_buffer *buffer = (struct nlcore_buffer *)arg; return nlbuffer_write(buffer, entry, sizeof(*entry)); } static int handle_eamt_display(struct eam_table *eamt, struct genl_info *info, union request_eamt *request) { struct nlcore_buffer buffer; struct ipv4_prefix *prefix4; int error; log_debug("Sending EAMT to userspace."); error = nlbuffer_init_response(&buffer, info, nlbuffer_response_max_size()); if (error) return nlcore_respond(info, error); prefix4 = request->foreach.prefix4_set ? &request->foreach.prefix4 : NULL; error = eamt_foreach(eamt, eam_entry_to_userspace, &buffer, prefix4); nlbuffer_set_pending_data(&buffer, error > 0); error = (error >= 0) ? nlbuffer_send(info, &buffer) : nlcore_respond(info, error); nlbuffer_clean(&buffer); return error; } static int handle_eamt_add(struct eam_table *eamt, union request_eamt *request, bool force) { log_debug("Adding EAMT entry."); return eamt_add(eamt, &request->add.prefix6, &request->add.prefix4, force); } static int handle_eamt_rm(struct eam_table *eamt, union request_eamt *request) { struct ipv6_prefix *prefix6; struct ipv4_prefix *prefix4; log_debug("Removing EAMT entry."); prefix6 = request->rm.prefix6_set ? &request->rm.prefix6 : NULL; prefix4 = request->rm.prefix4_set ? &request->rm.prefix4 : NULL; return eamt_rm(eamt, prefix6, prefix4); } static int handle_eamt_flush(struct eam_table *eamt) { eamt_flush(eamt); return 0; } int handle_eamt_config(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr; union request_eamt *request; int error; if (xlator_is_nat64(jool)) { log_err("Stateful NAT64 doesn't have an EAMT."); return nlcore_respond(info, -EINVAL); } hdr = get_jool_hdr(info); request = (union request_eamt *)(hdr + 1); error = validate_request_size(info, sizeof(*request)); if (error) return nlcore_respond(info, error); switch (hdr->operation) { case OP_FOREACH: return handle_eamt_display(jool->siit.eamt, info, request); case OP_ADD: error = handle_eamt_add(jool->siit.eamt, request, hdr->force); break; case OP_REMOVE: error = handle_eamt_rm(jool->siit.eamt, request); break; case OP_FLUSH: error = handle_eamt_flush(jool->siit.eamt); break; default: log_err("Unknown operation: %u", hdr->operation); error = -EINVAL; } return nlcore_respond(info, error); } jool-4.0.7/src/mod/common/nl/nl_core.c0000664000175000017500000002262713576247347014477 00000000000000#include "mod/common/nl/nl_core.h" #include #include #include #include "common/config.h" #include "common/types.h" #include "mod/common/error_pool.h" #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/wkmalloc.h" #include "mod/common/nl/nl_common.h" /* * Note: If you're working on this module, please keep in mind that there should * not be any log_err()s anywhere. * * If a preparation to send something to userspace failed, then trying to send * the error message (via log_err()) to userspace is a fairly lost cause. */ #ifndef GENLMSG_DEFAULT_SIZE /* This happens in old kernels. */ #define GENLMSG_DEFAULT_SIZE (NLMSG_DEFAULT_SIZE - GENL_HDRLEN) #endif /* * From my experience, the maximum packet size is exactly PAGE_SIZE. Any more * and the packet will not be delivered. (and the packet dispatch function will * return success, go figure.) * * But we don't care about that; what we need is the maximum available payload * size. There are lots and potentially quirky headers involved (Netlink, * Generic netlink and attributes), so it is difficult to predict. * * Kernel users typically use GENLMSG_DEFAULT_SIZE when allocating packets that * will hold attributes in Generic Netlink messages. I don't understand the * rationale; there can be any number of attributes, and each will need a * header, so predicting payload room using a constant seems asinine to me. * * Thankfully, we only have one attribute, so if the logic is wrong they should * crash long before us. Ha! * * In any case, GENLMSG_DEFAULT_SIZE is 3756 in the 4096-PAGE_SIZE machine I'm * coding on, so at least there's plenty of room for error it seems. * * The 256 is fairly arbitrary. GENLMSG_DEFAULT_SIZE is meant to compensate for * [G]Netlink headers (I guess), and I want additional insurance to compensate * for any buffer-to-packet eventualities. I do not think it is useful right * now, but (considering a silent packet drop is perceived as a success) I do * not want to tempt the devil. * * IF YOU PLAN ON TWEAKING THIS MACRO, YOU HAVE TO CASCADE YOUR CHANGES TO THE * BUILD_BUG_ON() AT nlcore_setup()!!! */ #define NLBUFFER_MAX_PAYLOAD ((size_t)(GENLMSG_DEFAULT_SIZE - 256)) static struct genl_family *family; static struct genl_multicast_group *group; void nlcore_setup(struct genl_family *new_family, struct genl_multicast_group *new_group) { /* * If this triggers, GENLMSG_DEFAULT_SIZE is too small. * Sorry; I don't want to use BUILD_BUG_ON_MSG because old kernels don't * have it. */ BUILD_BUG_ON(GENLMSG_DEFAULT_SIZE <= 256); family = new_family; group = new_group; } static int respond_single_msg(struct genl_info *info, struct nlcore_buffer *buffer) { struct sk_buff *skb; void *msg_head; int error; uint32_t portid; skb = genlmsg_new(nla_total_size(buffer->len), GFP_KERNEL); if (!skb) { pr_err("genlmsg_new() failed.\n"); return -ENOMEM; } portid = info->snd_portid; msg_head = genlmsg_put(skb, portid, info->nlhdr->nlmsg_seq, family, 0, get_jool_hdr(info)->mode); if (!msg_head) { pr_err("genlmsg_put() failed.\n"); kfree_skb(skb); return -ENOMEM; } error = nla_put(skb, ATTR_DATA, buffer->len, buffer->data); if (error) { pr_err("nla_put() failed. (errcode %d)\n", error); kfree_skb(skb); return error; } genlmsg_end(skb, msg_head); error = genlmsg_reply(skb, info); if (error) { pr_err("genlmsg_reply() failed. (errcode %d)\n", error); return error; } return 0; } size_t nlbuffer_response_max_size(void) { return NLBUFFER_MAX_PAYLOAD - sizeof(struct response_hdr); } static int __nlbuffer_init(struct nlcore_buffer *buffer, size_t capacity) { if (WARN(capacity > NLBUFFER_MAX_PAYLOAD, "Message size is too big. (%zu > %zu)", capacity, NLBUFFER_MAX_PAYLOAD)) return -EINVAL; buffer->len = 0; buffer->capacity = capacity; buffer->data = __wkmalloc("nlcore_buffer.data", capacity, GFP_ATOMIC); return buffer->data ? 0 : -ENOMEM; } int nlbuffer_init_request(struct nlcore_buffer *buffer, struct request_hdr *hdr, size_t capacity) { int error; error = __nlbuffer_init(buffer, sizeof(*hdr) + capacity); if (error) return error; return nlbuffer_write(buffer, hdr, sizeof(*hdr)); } int nlbuffer_init_response(struct nlcore_buffer *buffer, struct genl_info *info, size_t capacity) { struct response_hdr response; int error; error = __nlbuffer_init(buffer, sizeof(response) + capacity); if (error) return error; memcpy(&response.req, get_jool_hdr(info), sizeof(response.req)); response.req.castness = 'u'; response.error_code = 0; response.pending_data = false; return nlbuffer_write(buffer, &response, sizeof(response)); } void nlbuffer_clean(struct nlcore_buffer *buffer) { __wkfree("nlcore_buffer.data", buffer->data); } int nlbuffer_write(struct nlcore_buffer *buffer, void const *data, size_t data_size) { if (buffer->len + data_size > buffer->capacity) { log_debug("The buffer's storage capacity has been surpassed."); /* * Do not set the pending data flag yet; not everyone wants it. */ return 1; } memcpy(buffer->data + buffer->len, data, data_size); buffer->len += data_size; return 0; } int nlbuffer_send(struct genl_info *info, struct nlcore_buffer *buffer) { if (buffer->len > NLBUFFER_MAX_PAYLOAD) { pr_err("The response is too long; cannot send to userspace.\n"); return -EINVAL; } return respond_single_msg(info, buffer); } void nlbuffer_set_pending_data(struct nlcore_buffer *buffer, bool pending_data) { struct response_hdr *hdr = buffer->data; hdr->pending_data = pending_data; } void nlbuffer_set_errcode(struct nlcore_buffer *buffer, int error) { struct response_hdr *hdr = buffer->data; error = abs(error); hdr->error_code = (error > 0xFFFFu) ? 0xFFFFu : error; } static int respond_error(struct genl_info *info, int error_code) { struct nlcore_buffer buffer; int error; char *error_msg; size_t error_msg_size; error = error_pool_get_message(&error_msg, &error_msg_size); if (error) return error; /* Error msg already printed. */ if (error_msg_size > NLBUFFER_MAX_PAYLOAD) { error_msg[NLBUFFER_MAX_PAYLOAD - 1] = '\0'; error_msg_size = NLBUFFER_MAX_PAYLOAD; } error = nlbuffer_init_response(&buffer, info, error_msg_size); if (error) { pr_err("Errcode %d while initializing a response to userspace.\n", error); goto end_simple; } nlbuffer_set_errcode(&buffer, error_code); error = nlbuffer_write(&buffer, error_msg, error_msg_size); if (error) { pr_err("Errcode %d while writing on a response to userspace.\n", error); goto end_full; } if (error_code) log_debug("Sending error code %d to userspace.", error_code); else log_debug("Sending ACK to userspace."); error = respond_single_msg(info, &buffer); /* Fall through. */ end_full: nlbuffer_clean(&buffer); end_simple: __wkfree("Error msg out", error_msg); return error; } static int respond_ack(struct genl_info *info) { int error; struct nlcore_buffer buffer; error = nlbuffer_init_response(&buffer, info, 0); if (error) { pr_err("Errcode %d while initializing a response to userspace.\n", error); return error; } error = respond_single_msg(info, &buffer); nlbuffer_clean(&buffer); return error; } int nlcore_respond(struct genl_info *info, int error) { return error ? respond_error(info, error) : respond_ack(info); } int nlcore_respond_struct(struct genl_info *info, void *content, size_t content_len) { struct nlcore_buffer buffer; int error; error = nlbuffer_init_response(&buffer, info, content_len); if (error) { pr_err("Errcode %d while initializing a response to userspace.\n", error); return respond_error(info, error); } error = nlbuffer_write(&buffer, content, content_len); if (error < 0) { pr_err("Errcode %d while writing on a response to userspace.\n", error); return respond_error(info, error); } /* * @content is supposed to be a statically-defined struct, and as such * should be several orders smaller than the Netlink packet size limit. */ if (WARN(error > 0, "Content exceeds the maximum packet size.")) return respond_error(info, -E2BIG); error = nlbuffer_send(info, &buffer); nlbuffer_clean(&buffer); return error; } int nlcore_send_multicast_message(struct net *ns, struct nlcore_buffer *buffer) { int error; struct sk_buff *skb; void *msg_head; skb = genlmsg_new(nla_total_size(buffer->len), GFP_ATOMIC); if (!skb) return -ENOMEM; msg_head = genlmsg_put(skb, 0, 0, family, 0, 0); if (!msg_head) { pr_err("genlmsg_put() returned NULL.\n"); return -ENOMEM; } error = nla_put(skb, ATTR_DATA, buffer->len, buffer->data); if (error) { pr_err("nla_put() failed. (errcode %d)\n", error); kfree_skb(skb); return error; } genlmsg_end(skb, msg_head); #if LINUX_VERSION_LOWER_THAN(3, 13, 0, 7, 1) error = genlmsg_multicast_netns(ns, skb, 0, group->id, GFP_ATOMIC); #else /* * Note: Starting from kernel 3.13, all groups of a common family share * a group offset (from a common pool), and they are numbered * monotonically from there. That means if all we have is one group, * its id will always be zero. * * That's the reason why so many callers of this function stopped * providing a group when the API started forcing them to provide a * family. */ error = genlmsg_multicast_netns(family, ns, skb, 0, 0, GFP_ATOMIC); #endif if (error) { log_warn_once("Looks like nobody received my multicast message. Is the joold daemon really active? (errcode %d)", error); return error; } return 0; } jool-4.0.7/src/mod/common/nl/bib.c0000664000175000017500000000720113576247347013601 00000000000000#include "mod/common/nl/bib.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/db/pool4/db.h" #include "mod/common/db/bib/db.h" static int bib_entry_to_userspace(struct bib_entry const *entry, bool is_static, void *arg) { struct nlcore_buffer *buffer = (struct nlcore_buffer *)arg; struct bib_entry_usr entry_usr; entry_usr.addr4 = entry->ipv4; entry_usr.addr6 = entry->ipv6; entry_usr.l4_proto = entry->l4_proto; entry_usr.is_static = is_static; return nlbuffer_write(buffer, &entry_usr, sizeof(entry_usr)); } static int handle_bib_display(struct bib *db, struct genl_info *info, struct request_bib *request) { struct nlcore_buffer buffer; struct bib_foreach_func func = { .cb = bib_entry_to_userspace, .arg = &buffer, }; struct ipv4_transport_addr *offset; int error; log_debug("Sending BIB to userspace."); error = nlbuffer_init_response(&buffer, info, nlbuffer_response_max_size()); if (error) return nlcore_respond(info, error); offset = request->foreach.addr4_set ? &request->foreach.addr4 : NULL; error = bib_foreach(db, request->l4_proto, &func, offset); nlbuffer_set_pending_data(&buffer, error > 0); error = (error >= 0) ? nlbuffer_send(info, &buffer) : nlcore_respond(info, error); nlbuffer_clean(&buffer); return error; } static int handle_bib_add(struct xlator *jool, struct request_bib *request) { struct bib_entry new; log_debug("Adding BIB entry."); if (!pool4db_contains(jool->nat64.pool4, jool->ns, request->l4_proto, &request->add.addr4)) { log_err("The transport address '%pI4#%u' does not belong to pool4.\n" "Please add it there first.", &request->add.addr4.l3, request->add.addr4.l4); return -EINVAL; } new.ipv6 = request->add.addr6; new.ipv4 = request->add.addr4; new.l4_proto = request->l4_proto; return bib_add_static(jool, &new); } static int handle_bib_rm(struct xlator *jool, struct request_bib *request) { struct bib_entry bib; int error; log_debug("Removing BIB entry."); if (request->rm.addr6_set && request->rm.addr4_set) { bib.ipv6 = request->rm.addr6; bib.ipv4 = request->rm.addr4; bib.l4_proto = request->l4_proto; error = 0; } else if (request->rm.addr6_set) { error = bib_find6(jool->nat64.bib, request->l4_proto, &request->rm.addr6, &bib); } else if (request->rm.addr4_set) { error = bib_find4(jool->nat64.bib, request->l4_proto, &request->rm.addr4, &bib); } else { log_err("You need to provide an address so I can find the entry you want to remove."); return -EINVAL; } if (error == -ESRCH) goto esrch; if (error) return error; error = bib_rm(jool, &bib); if (error == -ESRCH) { if (request->rm.addr6_set && request->rm.addr4_set) goto esrch; /* It died on its own between the find and the rm. */ return 0; } return error; esrch: log_err("The entry wasn't in the database."); return -ESRCH; } int handle_bib_config(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); struct request_bib *request = (struct request_bib *)(hdr + 1); int error; if (xlator_is_siit(jool)) { log_err("SIIT doesn't have BIBs."); return nlcore_respond(info, -EINVAL); } error = validate_request_size(info, sizeof(*request)); if (error) return nlcore_respond(info, error); switch (hdr->operation) { case OP_FOREACH: return handle_bib_display(jool->nat64.bib, info, request); case OP_ADD: error = handle_bib_add(jool, request); break; case OP_REMOVE: error = handle_bib_rm(jool, request); break; default: log_err("Unknown operation: %u", hdr->operation); error = -EINVAL; } return nlcore_respond(info, error); } jool-4.0.7/src/mod/common/nl/atomic_config.c0000664000175000017500000000074213576247347015651 00000000000000#include "mod/common/nl/atomic_config.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/atomic_config.h" int handle_atomconfig_request(struct genl_info *info) { struct request_hdr *hdr; size_t total_len; hdr = nla_data(info->attrs[ATTR_DATA]); total_len = nla_len(info->attrs[ATTR_DATA]); return nlcore_respond(info, atomconfig_add( get_iname(info), hdr->xt, hdr + 1, total_len - sizeof(*hdr), hdr->force) ); } jool-4.0.7/src/mod/common/nl/blacklist4.h0000664000175000017500000000040513576247347015105 00000000000000#ifndef SRC_MOD_COMMON_NL_BLACKLIST4_H_ #define SRC_MOD_COMMON_NL_BLACKLIST4_H_ #include #include "mod/common/xlator.h" int handle_blacklist4_config(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_BLACKLIST4_H_ */ jool-4.0.7/src/mod/common/nl/nl_common.c0000664000175000017500000000154413576247347015032 00000000000000#include "mod/common/nl/nl_common.h" #include "common/types.h" #include "mod/common/log.h" int verify_superpriv(void) { if (!capable(CAP_NET_ADMIN)) { log_err("CAP_NET_ADMIN capability required. (Maybe try using su or sudo?)"); return -EPERM; } return 0; } struct request_hdr *get_jool_hdr(struct genl_info *info) { return nla_data(info->attrs[ATTR_DATA]); } int validate_request_size(struct genl_info *info, size_t min_expected) { size_t request_size = nla_len(info->attrs[ATTR_DATA]); min_expected += sizeof(struct request_hdr); if (request_size < min_expected) { log_err("The minimum expected request size was %zu bytes; got %zu instead.", min_expected, request_size); return -EINVAL; } return 0; } char *get_iname(struct genl_info *info) { return (info->attrs[ATTR_INAME]) ? nla_data(info->attrs[ATTR_INAME]) : INAME_DEFAULT; } jool-4.0.7/src/mod/common/nl/session.c0000664000175000017500000000445313576247347014536 00000000000000#include "mod/common/nl/session.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/db/bib/db.h" static int session_entry_to_userspace(struct session_entry const *entry, void *arg) { struct nlcore_buffer *buffer = (struct nlcore_buffer *) arg; struct session_entry_usr entry_usr; unsigned long dying_time; entry_usr.src6 = entry->src6; entry_usr.dst6 = entry->dst6; entry_usr.src4 = entry->src4; entry_usr.dst4 = entry->dst4; entry_usr.state = entry->state; dying_time = entry->update_time + entry->timeout; entry_usr.dying_time = (dying_time > jiffies) ? jiffies_to_msecs(dying_time - jiffies) : 0; return nlbuffer_write(buffer, &entry_usr, sizeof(entry_usr)); } static int handle_session_display(struct xlator *jool, struct genl_info *info, struct request_session *request) { struct nlcore_buffer buffer; struct session_foreach_func func = { .cb = session_entry_to_userspace, .arg = &buffer, }; struct session_foreach_offset offset_struct; struct session_foreach_offset *offset = NULL; int error; log_debug("Sending session table to userspace."); error = nlbuffer_init_response(&buffer, info, nlbuffer_response_max_size()); if (error) return nlcore_respond(info, error); if (request->foreach.offset_set) { offset_struct.offset = request->foreach.offset; offset_struct.include_offset = false; offset = &offset_struct; } error = bib_foreach_session(jool, request->l4_proto, &func, offset); nlbuffer_set_pending_data(&buffer, error > 0); error = (error >= 0) ? nlbuffer_send(info, &buffer) : nlcore_respond(info, error); nlbuffer_clean(&buffer); return error; } int handle_session_config(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr; struct request_session *request; int error; if (xlator_is_siit(jool)) { log_err("SIIT doesn't have session tables."); return nlcore_respond(info, -EINVAL); } hdr = get_jool_hdr(info); request = (struct request_session *)(hdr + 1); error = validate_request_size(info, sizeof(*request)); if (error) return nlcore_respond(info, error); switch (hdr->operation) { case OP_FOREACH: return handle_session_display(jool, info, request); } log_err("Unknown operation: %u", hdr->operation); return nlcore_respond(info, -EINVAL); } jool-4.0.7/src/mod/common/nl/joold.c0000664000175000017500000000213213576247347014152 00000000000000#include "mod/common/nl/joold.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/joold.h" int handle_joold_request(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr; size_t total_len; int error; log_debug("Received a joold request."); if (xlator_is_siit(jool)) { log_err("SIIT Jool doesn't need a synchronization daemon."); return nlcore_respond(info, -EINVAL); } hdr = get_jool_hdr(info); switch (hdr->operation) { case OP_ADD: total_len = nla_len(info->attrs[ATTR_DATA]); error = joold_sync(jool, hdr + 1, total_len - sizeof(*hdr)); if (!error) { /* * Do not bother userspace with an ACK; it's not * waiting nor has anything to do with it. */ return 0; } break; case OP_TEST: error = joold_test(jool); break; case OP_ADVERTISE: error = joold_advertise(jool); break; case OP_ACK: joold_ack(jool); return 0; /* Do not ack the ack! */ default: log_err("Unknown operation: %u", hdr->operation); error = -EINVAL; } return nlcore_respond(info, error); } jool-4.0.7/src/mod/common/nl/eam.h0000664000175000017500000000035213576247347013614 00000000000000#ifndef SRC_MOD_COMMON_NL_EAM_H_ #define SRC_MOD_COMMON_NL_EAM_H_ #include #include "mod/common/xlator.h" int handle_eamt_config(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_EAM_H_ */ jool-4.0.7/src/mod/common/nl/blacklist4.c0000664000175000017500000000474513576247347015113 00000000000000#include "mod/common/nl/blacklist4.h" #include "common/types.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/db/pool.h" static int pool_to_usr(struct ipv4_prefix *prefix, void *arg) { return nlbuffer_write(arg, prefix, sizeof(*prefix)); } static int handle_blacklist4_display(struct addr4_pool *pool, struct genl_info *info, union request_blacklist4 *request) { struct nlcore_buffer buffer; struct ipv4_prefix *offset; int error; log_debug("Sending the blacklist4 to userspace."); error = nlbuffer_init_response(&buffer, info, nlbuffer_response_max_size()); if (error) return nlcore_respond(info, error); offset = request->foreach.offset_set ? &request->foreach.offset : NULL; error = pool_foreach(pool, pool_to_usr, &buffer, offset); nlbuffer_set_pending_data(&buffer, error > 0); error = (error >= 0) ? nlbuffer_send(info, &buffer) : nlcore_respond(info, error); nlbuffer_clean(&buffer); return error; } static int handle_blacklist4_add(struct addr4_pool *pool, union request_blacklist4 *request, bool force) { log_debug("Adding an address to the blacklist4."); return pool_add(pool, &request->add.addrs, force); } static int handle_blacklist4_rm(struct addr4_pool *pool, union request_blacklist4 *request) { log_debug("Removing an address from the blacklist4."); return pool_rm(pool, &request->rm.addrs); } static int handle_blacklist4_flush(struct addr4_pool *pool) { log_debug("Flushing the blacklist4..."); return pool_flush(pool); } int handle_blacklist4_config(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); union request_blacklist4 *request = (union request_blacklist4 *)(hdr + 1); int error; if (xlator_is_nat64(jool)) { log_err("Stateful NAT64 doesn't have a blacklist4."); return nlcore_respond(info, -EINVAL); } error = validate_request_size(info, sizeof(*request)); if (error) return nlcore_respond(info, error); switch (hdr->operation) { case OP_FOREACH: return handle_blacklist4_display(jool->siit.blacklist4, info, request); case OP_ADD: error = handle_blacklist4_add(jool->siit.blacklist4, request, hdr->force); break; case OP_REMOVE: error = handle_blacklist4_rm(jool->siit.blacklist4, request); break; case OP_FLUSH: error = handle_blacklist4_flush(jool->siit.blacklist4); break; default: log_err("Unknown operation: %u", hdr->operation); error = -EINVAL; } return nlcore_respond(info, error); } jool-4.0.7/src/mod/common/nl/instance.c0000664000175000017500000000613013576247347014651 00000000000000#include "mod/common/nl/instance.h" #include "common/types.h" #include "mod/common/log.h" #include "mod/common/xlator.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" static int xlator_entry_to_userspace(struct xlator *entry, void *arg) { struct nlcore_buffer *buffer = (struct nlcore_buffer *)arg; struct instance_entry_usr entry_usr; entry_usr.ns = (__u64)entry->ns; entry_usr.xf = xlator_flags2xf(entry->flags); strcpy(entry_usr.iname, entry->iname); return nlbuffer_write(buffer, &entry_usr, sizeof(entry_usr)); } static int handle_instance_display(struct genl_info *info, union request_instance *request) { struct nlcore_buffer buffer; struct instance_entry_usr *offset; int error; log_debug("Sending instance table to userspace."); error = nlbuffer_init_response(&buffer, info, nlbuffer_response_max_size()); if (error) return nlcore_respond(info, error); offset = request->foreach.offset_set ? &request->foreach.offset : NULL; error = xlator_foreach(get_jool_hdr(info)->xt, xlator_entry_to_userspace, &buffer, offset); nlbuffer_set_pending_data(&buffer, error > 0); error = (error >= 0) ? nlbuffer_send(info, &buffer) : nlcore_respond(info, error); nlbuffer_clean(&buffer); return error; } static int handle_instance_add(struct genl_info *info, union request_instance *request) { log_debug("Adding Jool instance."); return nlcore_respond(info, xlator_add( request->add.xf | get_jool_hdr(info)->xt, request->add.iname, &request->add.pool6, NULL )); } static int handle_instance_hello(struct genl_info *info, union request_instance *request) { struct instance_hello_response response; int error; log_debug("Handling instance Hello."); error = xlator_find_current(request->hello.iname, XF_ANY | get_jool_hdr(info)->xt, NULL); switch (error) { case 0: response.status = IHS_ALIVE; return nlcore_respond_struct(info, &response, sizeof(response)); case -ESRCH: response.status = IHS_DEAD; return nlcore_respond_struct(info, &response, sizeof(response)); } return nlcore_respond(info, error); } static int handle_instance_rm(struct genl_info *info, union request_instance *request) { log_debug("Removing Jool instance."); return nlcore_respond(info, xlator_rm(get_jool_hdr(info)->xt, request->rm.iname)); } static int handle_instance_flush(struct genl_info *info, union request_instance *request) { log_debug("Flushing all instances from this namespace."); return nlcore_respond(info, xlator_flush(get_jool_hdr(info)->xt)); } int handle_instance_request(struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); union request_instance *request = (union request_instance *)(hdr + 1); switch (hdr->operation) { case OP_FOREACH: return handle_instance_display(info, request); case OP_TEST: return handle_instance_hello(info, request); case OP_ADD: return handle_instance_add(info, request); case OP_REMOVE: return handle_instance_rm(info, request); case OP_FLUSH: return handle_instance_flush(info, request); } log_err("Unknown operation: %u", hdr->operation); return nlcore_respond(info, -EINVAL); } jool-4.0.7/src/mod/common/nl/nl_handler.h0000664000175000017500000000063213576247347015161 00000000000000#ifndef SRC_MOD_COMMON_NL_HANDLER_H_ #define SRC_MOD_COMMON_NL_HANDLER_H_ /** * @file * The NAT64's layer/bridge towards the user. S/he can control its behavior * using this. */ #include #include int nlhandler_setup(void); void nlhandler_teardown(void); int handle_jool_message(struct sk_buff *skb, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_HANDLER_H_ */ jool-4.0.7/src/mod/common/nl/instance.h0000664000175000017500000000031213576247347014652 00000000000000#ifndef SRC_MOD_COMMON_NL_INSTANCE_H_ #define SRC_MOD_COMMON_NL_INSTANCE_H_ #include int handle_instance_request(struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_INSTANCE_H_ */ jool-4.0.7/src/mod/common/nl/stats.c0000664000175000017500000000145313576247347014206 00000000000000#include "mod/common/nl/stats.h" #include "mod/common/log.h" #include "mod/common/stats.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" static int handle_stats_query(struct xlator *jool, struct genl_info *info) { __u64 *result; int error; log_debug("Returning stats."); result = jstat_query(jool->stats); if (!result) return nlcore_respond(info, -ENOMEM); error = nlcore_respond_struct(info, result, __JSTAT_MAX * sizeof(*result)); kfree(result); return error; } int handle_stats_config(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); switch (hdr->operation) { case OP_FOREACH: return handle_stats_query(jool, info); } log_err("Unknown operation: %u", hdr->operation); return nlcore_respond(info, -EINVAL); } jool-4.0.7/src/mod/common/nl/stats.h0000664000175000017500000000036113576247347014210 00000000000000#ifndef SRC_MOD_COMMON_NL_STATS_H_ #define SRC_MOD_COMMON_NL_STATS_H_ #include #include "mod/common/xlator.h" int handle_stats_config(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_STATS_H_ */ jool-4.0.7/src/mod/common/nl/address.c0000664000175000017500000000353113576247347014474 00000000000000#include "mod/common/nl/address.h" #include "mod/common/address_xlat.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" static int handle_xlat64(struct xlator *jool, struct genl_info *info, struct request_addrxlat *request) { struct result_addrxlat64 result; struct addrxlat_result verdict; log_debug("Handling 6->4 address translation query."); verdict = addrxlat_siit64(jool, &request->addr.v6, &result); if (verdict.verdict != ADDRXLAT_CONTINUE) { log_err("%s.", verdict.reason); return nlcore_respond(info, -EINVAL); } return nlcore_respond_struct(info, &result, sizeof(result)); } static int handle_xlat46(struct xlator *jool, struct genl_info *info, struct request_addrxlat *request) { struct result_addrxlat46 result; struct addrxlat_result verdict; log_debug("Handling 4->6 address translation query."); verdict = addrxlat_siit46(jool, request->addr.v4.s_addr, &result, true, true); if (verdict.verdict != ADDRXLAT_CONTINUE) { log_err("%s.", verdict.reason); return nlcore_respond(info, -EINVAL); } return nlcore_respond_struct(info, &result, sizeof(result)); } int handle_address_query(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); struct request_addrxlat *request = (struct request_addrxlat *)(hdr + 1); int error; if (xlator_is_nat64(jool)) { log_err("Stateful NAT64 doesn't support address translation queries yet."); return nlcore_respond(info, -EINVAL); } error = validate_request_size(info, sizeof(*request)); if (error) return nlcore_respond(info, error); switch (request->direction) { case 64: return handle_xlat64(jool, info, request); case 46: return handle_xlat46(jool, info, request); } log_err("Unknown translation direction: %u", request->direction); return nlcore_respond(info, -EINVAL); } jool-4.0.7/src/mod/common/nl/session.h0000664000175000017500000000037113576247347014536 00000000000000#ifndef SRC_MOD_COMMON_NL_SESSION_H_ #define SRC_MOD_COMMON_NL_SESSION_H_ #include #include "mod/common/xlator.h" int handle_session_config(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_SESSION_H_ */ jool-4.0.7/src/mod/common/nl/nl_common.h0000664000175000017500000000056113576247347015035 00000000000000#ifndef SRC_MOD_COMMON_NL_COMMON_H_ #define SRC_MOD_COMMON_NL_COMMON_H_ #include #include "common/config.h" int verify_superpriv(void); struct request_hdr *get_jool_hdr(struct genl_info *info); int validate_request_size(struct genl_info *info, size_t min_expected); char *get_iname(struct genl_info *info); #endif /* SRC_MOD_COMMON_NL_COMMON_H_ */ jool-4.0.7/src/mod/common/nl/bib.h0000664000175000017500000000034213576247347013605 00000000000000#ifndef SRC_MOD_COMMON_NL_BIB_H_ #define SRC_MOD_COMMON_NL_BIB_H_ #include #include "mod/common/xlator.h" int handle_bib_config(struct xlator *jool, struct genl_info *info); #endif /* SRC_MOD_COMMON_NL */ jool-4.0.7/src/mod/common/nl/pool4.c0000664000175000017500000000630213576247347014103 00000000000000#include "mod/common/nl/pool4.h" #include "mod/common/log.h" #include "mod/common/nl/nl_common.h" #include "mod/common/nl/nl_core.h" #include "mod/common/db/pool4/db.h" #include "mod/common/db/bib/db.h" static int pool4_to_usr(struct pool4_sample const *sample, void *arg) { return nlbuffer_write(arg, sample, sizeof(*sample)); } static int handle_pool4_display(struct pool4 *pool, struct genl_info *info, union request_pool4 *request) { struct nlcore_buffer buffer; struct pool4_sample *offset = NULL; int error = 0; log_debug("Sending pool4 to userspace."); error = nlbuffer_init_response(&buffer, info, nlbuffer_response_max_size()); if (error) return nlcore_respond(info, error); if (request->foreach.offset_set) offset = &request->foreach.offset; error = pool4db_foreach_sample(pool, request->foreach.proto, pool4_to_usr, &buffer, offset); nlbuffer_set_pending_data(&buffer, error > 0); error = (error >= 0) ? nlbuffer_send(info, &buffer) : nlcore_respond(info, error); nlbuffer_clean(&buffer); return error; } static int handle_pool4_add(struct pool4 *pool, struct genl_info *info, union request_pool4 *request) { log_debug("Adding elements to pool4."); return nlcore_respond(info, pool4db_add(pool, &request->add)); } static int handle_pool4_update(struct pool4 *pool, struct genl_info *info, union request_pool4 *request) { log_debug("Updating pool4 table."); return nlcore_respond(info, pool4db_update(pool, &request->update)); } static int handle_pool4_rm(struct xlator *jool, struct genl_info *info, union request_pool4 *request) { int error; log_debug("Removing elements from pool4."); error = pool4db_rm_usr(jool->nat64.pool4, &request->rm.entry); if (xlator_is_nat64(jool) && !request->rm.quick) { bib_rm_range(jool, request->rm.entry.proto, &request->rm.entry.range); } return nlcore_respond(info, error); } static int handle_pool4_flush(struct xlator *jool, struct genl_info *info, union request_pool4 *request) { log_debug("Flushing pool4."); pool4db_flush(jool->nat64.pool4); if (xlator_is_nat64(jool) && !request->flush.quick) { /* * This will also clear *previously* orphaned entries, but given * that "not quick" generally means "please clean up", this is * more likely what people wants. */ bib_flush(jool); } return nlcore_respond(info, 0); } int handle_pool4_config(struct xlator *jool, struct genl_info *info) { struct request_hdr *hdr = get_jool_hdr(info); union request_pool4 *request = (union request_pool4 *)(hdr + 1); int error; if (xlator_is_siit(jool)) { log_err("SIIT doesn't have pool4."); return nlcore_respond(info, -EINVAL); } error = validate_request_size(info, sizeof(*request)); if (error) return nlcore_respond(info, error); switch (hdr->operation) { case OP_FOREACH: return handle_pool4_display(jool->nat64.pool4, info, request); case OP_ADD: return handle_pool4_add(jool->nat64.pool4, info, request); case OP_UPDATE: return handle_pool4_update(jool->nat64.pool4, info, request); case OP_REMOVE: return handle_pool4_rm(jool, info, request); case OP_FLUSH: return handle_pool4_flush(jool, info, request); } log_err("Unknown operation: %u", hdr->operation); return nlcore_respond(info, -EINVAL); } jool-4.0.7/src/mod/common/icmp_wrapper.c0000664000175000017500000000637013576247347015132 00000000000000#include "mod/common/icmp_wrapper.h" #include #include #include #include "common/types.h" #include "mod/common/log.h" #include "mod/common/route.h" static char *icmp_error_to_string(icmp_error_code error) { switch (error) { case ICMPERR_NONE: return "ICMPERR_NONE"; case ICMPERR_ADDR_UNREACHABLE: return "ICMPERR_ADDR_UNREACHABLE"; case ICMPERR_PORT_UNREACHABLE: return "ICMPERR_PORT_UNREACHABLE"; case ICMPERR_PROTO_UNREACHABLE: return "ICMPERR_PROTO_UNREACHABLE"; case ICMPERR_TTL: return "ICMPERR_TTL"; case ICMPERR_FRAG_NEEDED: return "ICMPERR_FRAG_NEEDED"; case ICMPERR_HDR_FIELD: return "ICMPERR_HDR_FIELD"; case ICMPERR_SRC_ROUTE: return "ICMPERR_SRC_ROUTE"; case ICMPERR_FILTER: return "ICMPERR_FILTER"; } return "Unknown"; } bool icmp64_send4(struct sk_buff *skb, icmp_error_code error, __u32 info) { int type, code; if (unlikely(!skb) || !skb->dev) return false; /* * I don't know why the kernel needs this nonsense, * but it's not my fault. */ if (route4_input(skb)) return false; switch (error) { case ICMPERR_ADDR_UNREACHABLE: type = ICMP_DEST_UNREACH; code = ICMP_HOST_UNREACH; break; case ICMPERR_PORT_UNREACHABLE: type = ICMP_DEST_UNREACH; code = ICMP_PORT_UNREACH; break; case ICMPERR_PROTO_UNREACHABLE: type = ICMP_DEST_UNREACH; code = ICMP_PROT_UNREACH; break; case ICMPERR_TTL: type = ICMP_TIME_EXCEEDED; code = ICMP_EXC_TTL; break; case ICMPERR_FRAG_NEEDED: type = ICMP_DEST_UNREACH; code = ICMP_FRAG_NEEDED; break; case ICMPERR_FILTER: type = ICMP_DEST_UNREACH; code = ICMP_PKT_FILTERED; break; case ICMPERR_SRC_ROUTE: type = ICMP_DEST_UNREACH; code = ICMP_SR_FAILED; break; default: return false; /* Not supported or needed. */ } log_debug("Sending ICMPv4 error: %s, type: %d, code: %d, rest: %u.", icmp_error_to_string(error), type, code, info); icmp_send(skb, type, code, cpu_to_be32(info)); return true; } bool icmp64_send6(struct sk_buff *skb, icmp_error_code error, __u32 info) { int type, code; if (unlikely(!skb) || !skb->dev) return false; switch (error) { case ICMPERR_ADDR_UNREACHABLE: type = ICMPV6_DEST_UNREACH; code = ICMPV6_ADDR_UNREACH; break; case ICMPERR_PORT_UNREACHABLE: case ICMPERR_PROTO_UNREACHABLE: /* See RFC6146, determine incoming tuple step. */ type = ICMPV6_DEST_UNREACH; code = ICMPV6_PORT_UNREACH; break; case ICMPERR_TTL: type = ICMPV6_TIME_EXCEED; code = ICMPV6_EXC_HOPLIMIT; break; case ICMPERR_FILTER: type = ICMPV6_DEST_UNREACH; code = ICMPV6_ADM_PROHIBITED; break; case ICMPERR_HDR_FIELD: type = ICMPV6_PARAMPROB; code = ICMPV6_HDR_FIELD; break; case ICMPERR_FRAG_NEEDED: type = ICMPV6_PKT_TOOBIG; code = 0; /* No code. */ break; default: return false; /* Not supported or needed. */ } log_debug("Sending ICMPv6 error: %s, type: %d, code: %d, rest: %u", icmp_error_to_string(error), type, code, info); icmpv6_send(skb, type, code, info); return true; } bool icmp64_send(struct sk_buff *skb, icmp_error_code error, __u32 info) { if (unlikely(!skb)) return false; switch (ntohs(skb->protocol)) { case ETH_P_IP: return icmp64_send4(skb, error, info); case ETH_P_IPV6: return icmp64_send6(skb, error, info); } return false; } jool-4.0.7/src/mod/common/rfc6052.h0000664000175000017500000000204113576247347013525 00000000000000#ifndef SRC_MOD_COMMON_RFC6052_H_ #define SRC_MOD_COMMON_RFC6052_H_ /** * @file * The algorithm defined in RFC 6052 (http://tools.ietf.org/html/rfc6052). */ #include #include #include #include "common/config.h" /** * Translates @src into an IPv4 address and returns it as @dst. * * In other words, removes @prefix from @src. The result will be 32 bits of * address. */ int __rfc6052_6to4(struct ipv6_prefix const *prefix, struct in6_addr const *src, struct in_addr *dst); /** * Translates @src into an IPv6 address and returns it as @dst. * * In other words, adds @prefix to @src. The result will be 128 bits of address. */ int __rfc6052_4to6(struct ipv6_prefix const *prefix, struct in_addr const *src, struct in6_addr *dst); int rfc6052_6to4(struct ipv6_prefix const *prefix, struct in6_addr const *src, struct result_addrxlat64 *dst); int rfc6052_4to6(struct ipv6_prefix const *prefix, struct in_addr const *src, struct result_addrxlat46 *dst); #endif /* SRC_MOD_COMMON_RFC6052_H_ */ jool-4.0.7/src/mod/common/ipv6_hdr_iterator.c0000664000175000017500000000232613576247347016071 00000000000000#include "mod/common/ipv6_hdr_iterator.h" #include void hdr_iterator_init(struct hdr_iterator *iterator, struct ipv6hdr *main_hdr) { struct hdr_iterator defaults = HDR_ITERATOR_INIT(main_hdr); memcpy(iterator, &defaults, sizeof(defaults)); } int hdr_iterator_next(struct hdr_iterator *iterator) { union { struct ipv6_opt_hdr *opt; struct frag_hdr *frag; } hdr; switch (iterator->hdr_type) { case NEXTHDR_HOP: case NEXTHDR_ROUTING: case NEXTHDR_DEST: hdr.opt = iterator->data; iterator->hdr_type = hdr.opt->nexthdr; iterator->data += 8 + 8 * hdr.opt->hdrlen; break; case NEXTHDR_FRAGMENT: hdr.frag = iterator->data; iterator->hdr_type = hdr.frag->nexthdr; iterator->data += sizeof(*hdr.frag); break; default: return 0; } return EAGAIN; /* It's positive because it's not really an error ;p */ } void hdr_iterator_last(struct hdr_iterator *iterator) { while (hdr_iterator_next(iterator) == EAGAIN) /* Void on purpose. */; } void *hdr_iterator_find(struct ipv6hdr *ip6_hdr, __u8 hdr_id) { struct hdr_iterator iterator = HDR_ITERATOR_INIT(ip6_hdr); do { if (iterator.hdr_type == hdr_id) return iterator.data; } while (hdr_iterator_next(&iterator) == EAGAIN); return NULL; } jool-4.0.7/src/mod/common/xlator.h0000664000175000017500000000601213576247347013751 00000000000000#ifndef SRC_MOD_COMMON_XLATOR_H_ #define SRC_MOD_COMMON_XLATOR_H_ #include "common/config.h" #include "mod/common/stats.h" #include "mod/common/types.h" /** * A Jool translator "instance". The point is that each network namespace has * a separate instance (if Jool has been loaded there). * * The instance holds all the databases and configuration the translating code * should use to handle a packet in the respective namespace. */ struct xlator { /* * Note: This xlator must not increase @ns's kref counter. * Quite the opposite: The @ns has to reference count the xlator. * (The kernel does this somewhere in the register_pernet_subsys() API.) * Otherwise the Jool instance would prevent the namespace from dying, * and in turn the namespace would prevent the Jool instance from dying. * * As a matter of fact, I'll say it here because there's no better place * for it: whenever Jool acquires a reference to a namespace, it should * *ALWAYS* return it, preferably during the same function. * * TODO (NOW) what about older kernels? What about the atomic config * instances? */ struct net *ns; char iname[INAME_MAX_LEN]; xlator_flags flags; struct jool_stats *stats; struct globals globals; union { struct { struct eam_table *eamt; struct addr4_pool *blacklist4; } siit; struct { struct pool4 *pool4; struct bib *bib; struct joold_queue *joold; } nat64; }; bool (*is_hairpin)(struct xlation *); verdict (*handling_hairpinning)(struct xlation *); }; /* User context (reads and writes) */ int xlator_setup(void); void xlator_set_defrag(void (*defrag_enable)(struct net *ns)); void xlator_teardown(void); int xlator_add(xlator_flags flags, char *iname, struct config_prefix6 *pool6, struct xlator *result); int xlator_rm(xlator_type xt, char *iname); int xlator_flush(xlator_type xt); int xlator_init(struct xlator *jool, struct net *ns, char *iname, xlator_flags flags, struct config_prefix6 *pool6); int xlator_replace(struct xlator *jool); /* Any context (reads) */ int xlator_find(struct net *ns, xlator_flags flags, const char *iname, struct xlator *result); int xlator_find_current(const char *iname, xlator_flags flags, struct xlator *result); int xlator_find_netfilter(struct net *ns, struct xlator *result); void xlator_put(struct xlator *instance); typedef int (*xlator_foreach_cb)(struct xlator *, void *); int xlator_foreach(xlator_type xt, xlator_foreach_cb cb, void *args, struct instance_entry_usr *offset); xlator_type xlator_get_type(struct xlator *instance); xlator_framework xlator_get_framework(struct xlator *instance); static inline bool xlator_is_siit(struct xlator *instance) { return instance->flags & XT_SIIT; } static inline bool xlator_is_nat64(struct xlator *instance) { return instance->flags & XT_NAT64; } static inline bool xlator_is_netfilter(struct xlator *instance) { return instance->flags & XF_NETFILTER; } static inline bool xlator_is_iptables(struct xlator *instance) { return instance->flags & XF_IPTABLES; } #endif /* SRC_MOD_COMMON_XLATOR_H_ */ jool-4.0.7/src/mod/common/skbuff.c0000664000175000017500000002756213576247347013730 00000000000000#include "mod/common/skbuff.h" #include #include #include #include #include "mod/common/linux_version.h" #include "mod/common/packet.h" enum hdr_protocol { HP_IPV4 = 4, HP_IPV6 = 128, HP_TCP = NEXTHDR_TCP, HP_UDP = NEXTHDR_UDP, HP_ICMP4 = IPPROTO_ICMP, HP_ICMP6 = NEXTHDR_ICMP, HP_HOP = NEXTHDR_HOP, HP_ROUTING = NEXTHDR_ROUTING, HP_DEST = NEXTHDR_DEST, HP_FRAG = NEXTHDR_FRAGMENT, HP_PAYLOAD = 129, }; struct hdr_iterator { unsigned int tabs; struct sk_buff *skb; int skb_offset; enum hdr_protocol type; bool done; }; #define skb_hdr_ptr(iterator, buffer) skb_header_pointer(iterator->skb, \ iterator->skb_offset, sizeof(buffer), &buffer) #define print(tabs, text, ...) do { \ print_tabs(tabs); \ pr_cont(text "\n", ##__VA_ARGS__); \ } while (0) static void __skb_log(struct sk_buff *skb, char *header, unsigned int tabs); static void print_tabs(unsigned int tabs) { unsigned int t; pr_info(""); for (t = 0; t < tabs; t++) pr_cont(" "); } static char *skbproto2string(__u16 proto) { switch (proto) { case ETH_P_IP: return "IPv4"; case ETH_P_IPV6: return "IPv6"; } return "unknown"; } static char *ipsummed2string(__u8 ip_summed) { switch (ip_summed) { case CHECKSUM_NONE: return "CHECKSUM_NONE"; case CHECKSUM_UNNECESSARY: return "CHECKSUM_UNNECESSARY"; case CHECKSUM_COMPLETE: return "CHECKSUM_COMPLETE"; case CHECKSUM_PARTIAL: return "CHECKSUM_PARTIAL"; } return "unknown"; } static void print_skb_fields(struct sk_buff *skb, unsigned int tabs) { __u16 proto; print(tabs++, "skb fields:"); print(tabs, "prev:%p", skb->prev); print(tabs, "next:%p", skb->next); print(tabs, "dev:%p", skb->dev); print(tabs, "len:%u", skb->len); print(tabs, "data_len:%u", skb->data_len); print(tabs, "mac_len:%u", skb->mac_len); print(tabs, "hdr_len:%u", skb->hdr_len); print(tabs, "truesize:%u", skb->truesize); print(tabs, "pkt_type:%u", skb->pkt_type); print(tabs, "ignore_df:%u", skb->ignore_df); print(tabs, "ip_summed:%u (%s)", skb->ip_summed, ipsummed2string(skb->ip_summed)); print(tabs, "csum_valid:%u", skb->csum_valid); #if LINUX_VERSION_LOWER_THAN(4, 13, 0, 9999, 0) print(tabs, "csum_bad:%u", skb->csum_bad); #endif print(tabs, "csum_start:%u", skb->csum_start); print(tabs, "csum_offset:%u", skb->csum_offset); print(tabs, "mark:%u", skb->mark); print(tabs, "inner_transport_header:%u", skb->inner_transport_header); print(tabs, "inner_network_header:%u", skb->inner_network_header); print(tabs, "inner_mac_header:%u", skb->inner_mac_header); proto = be16_to_cpu(skb->protocol); print(tabs, "protocol:%u (%s)", proto, skbproto2string(proto)); print(tabs, "transport_header:%u", skb->transport_header); print(tabs, "network_header:%u", skb->network_header); print(tabs, "mac_header:%u", skb->mac_header); print(tabs, "head:%p", skb->head); print(tabs, "data:%ld", skb->data - skb->head); print(tabs, "tail:%u", skb->tail); print(tabs, "end:%u", skb->end); } static int truncated(unsigned int tabs) { print(tabs, "[Truncated]"); return -ENOSPC; } static int print_ipv4_hdr(struct hdr_iterator *meta) { struct iphdr buffer, *hdr; unsigned int tabs = meta->tabs; print(tabs++, "IPv4 header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); print(tabs, "Version: %u", hdr->version); print(tabs, "IHL: %u", hdr->ihl); print(tabs, "TOS: %u", hdr->tos); print(tabs, "Total Length: %u", be16_to_cpu(hdr->tot_len)); print(tabs, "Fragment ID: %u", be16_to_cpu(hdr->id)); print(tabs, "Reserved:%u DF:%u MF:%u FragmentOffset: %u", be16_to_cpu(hdr->frag_off) >> 15, !!is_df_set(hdr), !!is_mf_set_ipv4(hdr), get_fragment_offset_ipv4(hdr)); print(tabs, "TTL: %u", hdr->ttl); print(tabs, "Protocol: %u", hdr->protocol); print(tabs, "Checksum: %u", hdr->check); print(tabs, "Source Address: %pI4", &hdr->saddr); print(tabs, "Destination Address: %pI4", &hdr->daddr); meta->skb_offset += sizeof(buffer); meta->type = hdr->protocol; return 0; } static int print_ipv6_hdr(struct hdr_iterator *meta) { struct ipv6hdr buffer, *hdr; unsigned int tabs = meta->tabs; print(tabs++, "IPv6 header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); print(tabs, "Version: %u", hdr->version); print(tabs, "Priority: %u", hdr->priority); print(tabs, "Flow Label: 0x%02x%02x%02x", hdr->flow_lbl[0], hdr->flow_lbl[1], hdr->flow_lbl[2]); print(tabs, "Payload Length: %u", be16_to_cpu(hdr->payload_len)); print(tabs, "Next Header: %u", hdr->nexthdr); print(tabs, "Hop Limit: %u", hdr->hop_limit); print(tabs, "Source Address: %pI6c", &hdr->saddr); print(tabs, "Destination Address: %pI6c", &hdr->daddr); meta->skb_offset += sizeof(buffer); meta->type = hdr->nexthdr; return 0; } static int print_tcphdr(struct hdr_iterator *meta) { struct tcphdr buffer, *hdr; unsigned int tabs = meta->tabs; print(tabs++, "TCP header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); print(tabs, "Src Port: %u", be16_to_cpu(hdr->source)); print(tabs, "Dst Port: %u", be16_to_cpu(hdr->dest)); print(tabs, "Seq Number: %u", be32_to_cpu(hdr->seq)); print(tabs, "ACK Seq: %u", be32_to_cpu(hdr->ack_seq)); print(tabs, "ACK:%u RST:%u SYN:%u FIN:%u", hdr->ack, hdr->rst, hdr->syn, hdr->fin); print(tabs, "[Other flags ommitted]"); print(tabs, "Window Size: %u", be16_to_cpu(hdr->window)); print(tabs, "Checksum: %u", hdr->check); print(tabs, "Urgent Pointer: %u", be16_to_cpu(hdr->urg_ptr)); meta->skb_offset += sizeof(buffer); meta->type = HP_PAYLOAD; return 0; } static int print_udphdr(struct hdr_iterator *meta) { struct udphdr buffer, *hdr; unsigned int tabs = meta->tabs; print(tabs++, "UDP header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); print(tabs, "Src Port: %u", be16_to_cpu(hdr->source)); print(tabs, "Dst Port: %u", be16_to_cpu(hdr->dest)); print(tabs, "Length: %u", be16_to_cpu(hdr->len)); print(tabs, "Checksum: %u", hdr->check); meta->skb_offset += sizeof(buffer); meta->type = HP_PAYLOAD; return 0; } static int print_icmp4hdr(struct hdr_iterator *meta) { struct icmphdr buffer, *hdr; unsigned int tabs = meta->tabs; print(tabs++, "ICMPv4 header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); print(tabs, "Type:%u Code:%u", hdr->type, hdr->code); print(tabs, "Checksum: %u", hdr->checksum); print(tabs, "Rest 1: %u", be16_to_cpu(hdr->un.echo.id)); print(tabs, "Rest 2: %u", be16_to_cpu(hdr->un.echo.sequence)); meta->skb_offset += sizeof(buffer); meta->type = is_icmp4_error(hdr->type) ? HP_IPV4 : HP_PAYLOAD; return 0; } static int print_icmp6hdr(struct hdr_iterator *meta) { struct icmp6hdr buffer, *hdr; unsigned int tabs = meta->tabs; print(tabs++, "ICMPv6 header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); print(tabs, "Type:%u Code:%u", hdr->icmp6_type, hdr->icmp6_code); print(tabs, "Checksum: %u", hdr->icmp6_cksum); print(tabs, "Rest 1: %u", be16_to_cpu(hdr->icmp6_identifier)); print(tabs, "Rest 2: %u", be16_to_cpu(hdr->icmp6_sequence)); meta->skb_offset += sizeof(buffer); meta->type = is_icmp6_error(hdr->icmp6_type) ? HP_IPV6 : HP_PAYLOAD; return 0; } static int print_exthdr(struct hdr_iterator *meta) { struct ipv6_opt_hdr buffer, *hdr; unsigned int tabs = meta->tabs; unsigned int len; print(tabs++, "IPv6 Extension header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); len = 8 + 8 * hdr->hdrlen; print(tabs, "Next Header: %u", hdr->nexthdr); print(tabs, "Length: %u", len); meta->skb_offset += len; meta->type = hdr->nexthdr; return 0; } static int print_fraghdr(struct hdr_iterator *meta) { struct frag_hdr buffer, *hdr; unsigned int tabs = meta->tabs; print(tabs++, "Fragment Header:"); hdr = skb_hdr_ptr(meta, buffer); if (!hdr) return truncated(tabs); print(tabs, "Next Header: %u", hdr->nexthdr); print(tabs, "Reserved: %u", hdr->reserved); print(tabs, "FragmentOffset:%u Res:%u M:%u", get_fragment_offset_ipv6(hdr), (be16_to_cpu(hdr->frag_off) >> 1) & 3, is_mf_set_ipv6(hdr)); print(tabs, "Identification: %u", be32_to_cpu(hdr->identification)); meta->skb_offset += sizeof(buffer); meta->type = hdr->nexthdr; return 0; } static int print_payload(struct hdr_iterator *meta) { unsigned char buffer[10], *payload; unsigned int payload_len; unsigned int tabs = meta->tabs; unsigned int i; print(tabs++, "Payload:"); if (meta->skb->len < meta->skb_offset) { print(tabs, "Error: Offset exceeds packet length."); return -ENOSPC; } payload_len = meta->skb->len - meta->skb_offset; if (payload_len == 0) { print(tabs, "(Empty)"); goto success; } /* * Most (if not all) test skb payloads are monotonic (0, 1, 2, 3, 4, * 5, ..., 254, 255, 0, 1, 2, 3, ..., 254, 255, 0, 1, etc) and it's * rare to need to confirm large payloads visually. * So let's print only a few bytes. */ if (payload_len <= 10) { payload = skb_header_pointer(meta->skb, meta->skb_offset, payload_len, buffer); if (!payload) return truncated(tabs); print_tabs(tabs); for (i = 0; i < payload_len; i++) pr_cont("%02x ", payload[i]); } else { payload = skb_header_pointer(meta->skb, meta->skb_offset, 5, buffer); if (!payload) return truncated(tabs); print_tabs(tabs); for (i = 0; i < 5; i++) pr_cont("%02x ", payload[i]); pr_cont("(...) "); payload = skb_header_pointer(meta->skb, meta->skb->len - 5, 5, buffer); if (!payload) return truncated(tabs); for (i = 0; i < 5; i++) pr_cont("%02x ", payload[i]); } pr_cont("\n"); success: meta->done = true; return 0; } static void print_hdr_chain(struct hdr_iterator *meta) { int error; while (!meta->done) { switch (meta->type) { case HP_IPV4: error = print_ipv4_hdr(meta); break; case HP_IPV6: error = print_ipv6_hdr(meta); break; case HP_TCP: error = print_tcphdr(meta); break; case HP_UDP: error = print_udphdr(meta); break; case HP_ICMP4: error = print_icmp4hdr(meta); break; case HP_ICMP6: error = print_icmp6hdr(meta); break; case HP_HOP: case HP_ROUTING: case HP_DEST: error = print_exthdr(meta); break; case HP_FRAG: error = print_fraghdr(meta); break; case HP_PAYLOAD: error = print_payload(meta); break; default: print(meta->tabs, "[Unknown header type: %u]", meta->type); return; } if (error) return; } } static void print_headers(struct sk_buff *skb, unsigned int tabs) { struct hdr_iterator meta = { .tabs = tabs + 1, .skb = skb, .skb_offset = skb_network_offset(skb), .type = skb->data[0] >> 4, .done = false, }; print(tabs, "Content:"); switch (meta.type) { case 4: meta.type = HP_IPV4; break; case 6: meta.type = HP_IPV6; break; default: print(tabs + 1, "[Unknown layer 3 protocol: %u]", meta.type); return; } print_hdr_chain(&meta); } static void print_shinfo_fields(struct sk_buff *skb, unsigned int tabs) { struct skb_shared_info *shinfo = skb_shinfo(skb); unsigned int f; struct sk_buff *iter; print(tabs, "shared info:"); tabs++; print(tabs, "nr_frags:%u", shinfo->nr_frags); print(tabs, "tx_flags:%u", shinfo->tx_flags); print(tabs, "gso_size:%u", shinfo->gso_size); print(tabs, "gso_segs:%u", shinfo->gso_segs); print(tabs, "gso_type:%u", shinfo->gso_type); print(tabs, "frags:"); tabs++; for (f = 0; f < shinfo->nr_frags; f++) { print(tabs, "%u page_offset:%u size:%u", f, shinfo->frags[f].page_offset, shinfo->frags[f].size); } tabs--; skb_walk_frags(skb, iter) __skb_log(iter, "frag", tabs); } static void __skb_log(struct sk_buff *skb, char *header, unsigned int tabs) { pr_info("=================\n"); print(tabs, "%s", header); tabs++; print_skb_fields(skb, tabs); print_headers(skb, tabs); print_shinfo_fields(skb, tabs); } /** * Assumes that the headers of the packet can be found in the head area. * (ie. Do not call before `pkt_init_ipv*()`.) */ void skb_log(struct sk_buff *skb, char *label) { __skb_log(skb, label, 0); } jool-4.0.7/src/mod/common/linux_version.h0000664000175000017500000000153513576247347015351 00000000000000#ifndef SRC_MOD_COMMON_LINUX_VERSION_H_ #define SRC_MOD_COMMON_LINUX_VERSION_H_ #include /* * A bunch of code has to be compiled differently depending on kernel version. * RHEL kernels, however, do not define the LINUX_VERSION_CODE macro correctly. * * LINUX_VERSION_CODE is therefore not always a good solution; use these macros * instead. */ #ifdef RHEL_RELEASE_CODE #define LINUX_VERSION_AT_LEAST(a, b, c, ra, rb) \ RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(ra, rb) #define LINUX_VERSION_LOWER_THAN(a, b, c, ra, rb) \ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(ra, rb) #else #define LINUX_VERSION_AT_LEAST(a, b, c, ra, rb) \ LINUX_VERSION_CODE >= KERNEL_VERSION(a, b, c) #define LINUX_VERSION_LOWER_THAN(a, b, c, ra, rb) \ LINUX_VERSION_CODE < KERNEL_VERSION(a, b, c) #endif #endif /* SRC_MOD_COMMON_LINUX_VERSION_H_ */ jool-4.0.7/src/mod/nat64/0000775000175000017500000000000013576247347012014 500000000000000jool-4.0.7/src/mod/nat64/Makefile0000664000175000017500000000113413576247347013373 00000000000000MODULES_DIR ?= /lib/modules/$(shell uname -r) KERNEL_DIR ?= ${MODULES_DIR}/build KBUILD_EXTRA_SYMBOLS = $(src)/../common/Module.symvers #CC=cgcc # More healthy warnings. #CC=gcc-4.9 # Needed to cross-compile Jool for an older machine. ccflags-y := -I$(src)/../.. $(JOOL_FLAGS) #ccflags-y += -Wfatal-errors -Werror obj-m += jool.o all: make -C ${KERNEL_DIR} M=$$PWD JOOL_FLAGS="${JOOL_FLAGS}" modules: make -C ${KERNEL_DIR} M=$$PWD $@ modules_install: make -C ${KERNEL_DIR} M=$$PWD $@ install: modules_install depmod clean: make -C ${KERNEL_DIR} M=$$PWD $@ debug: make all JOOL_FLAGS+=-DDEBUG jool-4.0.7/src/mod/nat64/jool.c0000664000175000017500000000600513576247347013044 00000000000000#include "mod/common/init.h" #include #include #include #include "mod/common/linux_version.h" #include "mod/common/log.h" #include "mod/common/kernel_hook.h" MODULE_LICENSE(JOOL_LICENSE); MODULE_AUTHOR("NIC-ITESM"); MODULE_DESCRIPTION("Stateful NAT64 (RFC 6146)"); MODULE_VERSION(JOOL_VERSION_STR); static char const *banner = "\n" " ,----, \n" " ,--. ,/ .`| ,--, \n" " ,--.'| ,---, ,` .'**: ,--.'| \n" " ,--,: :*| ' .'*\\ ; ;*****/ ,---. ,--, |#: \n" ",`--.'`| '*: / ;****'. .'___,/****,' / \\ ,---.'| :#' \n" "| :**: |*|: :*******\\ | :*****| / /#' ; :#| |#; \n" ": |***\\ |*:: |***/\\***\\ ; |.';**; . '#/ | |#: _'#| \n" "| :*'**'; || :**' ;.***:`----' |**|' /#; : :#|.'##| \n" "' '*;.****;| |**;/ \\***\\ ' :**;| :##\\ | '#'##;#: \n" "| |*| \\***|' :**| \\ \\*,' | |**'; |###``.\\ \\##.'.#| \n" "' :*| ;*.'| |**' '--' ' :**|' ;######\\`---`: |#' \n" "| |*'`--' | :**: ; |.' ' |##.\\##| ' ;#| \n" "' :*| | |*,' '---' | :##';##: | :#; \n" "; |.' `--'' \\ \\####/ ' ,/ \n" "'---' `---`--` '--' \n"; static int iptables_error; /** iptables module registration object */ static struct xt_target targets[] = { { .name = IPTABLES_NAT64_MODULE_NAME, .revision = 0, .family = NFPROTO_IPV6, .target = target_ipv6, .checkentry = target_checkentry, .targetsize = XT_ALIGN(sizeof(struct target_info)), .me = THIS_MODULE, }, { .name = IPTABLES_NAT64_MODULE_NAME, .revision = 0, .family = NFPROTO_IPV4, .target = target_ipv4, .checkentry = target_checkentry, .targetsize = XT_ALIGN(sizeof(struct target_info)), .me = THIS_MODULE, }, }; static void defrag_enable(struct net *ns) { #if LINUX_VERSION_AT_LEAST(4, 10, 0, 8, 0) nf_defrag_ipv4_enable(ns); nf_defrag_ipv6_enable(ns); #else nf_defrag_ipv4_enable(); nf_defrag_ipv6_enable(); #endif } static int __init nat64_init(void) { int error; pr_debug("%s", banner); pr_debug("Inserting NAT64 Jool...\n"); error = jool_nat64_get(defrag_enable); if (error) return error; iptables_error = xt_register_targets(targets, ARRAY_SIZE(targets)); if (iptables_error) { log_warn("Error code %d while trying to register the iptables targets.\n" "iptables SIIT Jool will not be available.", iptables_error); } pr_info("NAT64 Jool v" JOOL_VERSION_STR " module inserted.\n"); return error; } static void __exit nat64_exit(void) { if (!iptables_error) xt_unregister_targets(targets, ARRAY_SIZE(targets)); jool_nat64_put(); pr_info("NAT64 Jool v" JOOL_VERSION_STR " module removed.\n"); } module_init(nat64_init); module_exit(nat64_exit); jool-4.0.7/src/usr/0000775000175000017500000000000013576247347011112 500000000000000jool-4.0.7/src/usr/util/0000775000175000017500000000000013576247347012067 500000000000000jool-4.0.7/src/usr/util/cJSON.c0000664000175000017500000002650513576225301013061 00000000000000/* * Copyright (c) 2009 Dave Gamble * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ /* * cJSON * JSON parser in C. */ #include #include #include #include #include #include #include #include "cJSON.h" static const char *ep; const char *cJSON_GetErrorPtr(void) { return ep; } static int cJSON_strcasecmp(const char *s1, const char *s2) { if (!s1) return (s1 == s2) ? 0 : 1; if (!s2) return 1; for (; tolower(*s1) == tolower(*s2); ++s1, ++s2) if (*s1 == 0) return 0; return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2); } static void *(*cJSON_malloc)(size_t sz) = malloc; static void (*cJSON_free)(void *ptr) = free; /* Internal constructor. */ static cJSON *cJSON_New_Item(void) { cJSON* node = (cJSON*)cJSON_malloc(sizeof(cJSON)); if (node) memset(node, 0, sizeof(cJSON)); return node; } /* Delete a cJSON structure. */ void cJSON_Delete(cJSON *c) { cJSON *next; while (c) { next = c->next; if (!(c->type & cJSON_IsReference) && c->child) cJSON_Delete(c->child); if (!(c->type & cJSON_IsReference) && c->valuestring) cJSON_free(c->valuestring); if (!(c->type & cJSON_StringIsConst) && c->string) cJSON_free(c->string); cJSON_free(c); c = next; } } static void assign_cjson_number(cJSON *item, double num) { item->type = cJSON_Number; item->valuedouble = num; item->numflags = VALUENUM_DBL; if (INT_MIN <= num && num <= INT_MAX) { item->valueint = (int)num; item->numflags |= VALUENUM_INT; } if (0 <= num && num <= UINT_MAX) { item->valueuint = (unsigned int)num; item->numflags |= VALUENUM_UINT; } } /* * Parse the input text to generate a number, and populate the result into item. */ static const char *parse_number(cJSON *item, const char *num) { double n = 0, sign = 1, scale = 0; int subscale = 0, signsubscale = 1; /* Has sign? */ if (*num == '-') { sign = -1; num++; } /* is zero */ if (*num == '0') num++; /* Number? */ if (*num >= '1' && *num <= '9') { do { n = (n * 10.0) + (*num++ - '0'); } while (*num >= '0' && *num <= '9'); } /* Fractional part? */ if (*num == '.' && num[1] >= '0' && num[1] <= '9') { num++; do { n = (n * 10.0) + (*num++ - '0'); scale--; } while (*num >= '0' && *num <= '9'); } /* Exponent? */ if (*num == 'e' || *num == 'E') { num++; if (*num == '+') { num++; } else if (*num == '-') { /* With sign? */ signsubscale = -1; num++; } while (*num >= '0' && *num <= '9') { /* Number? */ subscale = (subscale * 10) + (*num++ - '0'); } } /* number = +/- number.fraction * 10^+/- exponent */ n = sign * n * pow(10.0, (scale + subscale * signsubscale)); assign_cjson_number(item, n); return num; } typedef struct { char *buffer; int length; int offset; } printbuffer; static unsigned parse_hex4(const char *str) { unsigned h = 0; if (*str >= '0' && *str <= '9') h += (*str) - '0'; else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A'; else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a'; else return 0; h = h << 4; str++; if (*str >= '0' && *str <= '9') h += (*str) - '0'; else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A'; else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a'; else return 0; h = h << 4; str++; if (*str >= '0' && *str <= '9') h += (*str) - '0'; else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A'; else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a'; else return 0; h = h << 4; str++; if (*str >= '0' && *str <= '9') h += (*str) - '0'; else if (*str >= 'A' && *str <= 'F') h += 10 + (*str) - 'A'; else if (*str >= 'a' && *str <= 'f') h += 10 + (*str) - 'a'; else return 0; return h; } /* Parse the input text into an unescaped cstring, and populate item. */ static const unsigned char firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }; static const char *parse_string(cJSON *item, const char *str) { const char *ptr = str + 1; char *ptr2; char *out; int len = 0; unsigned uc, uc2; if (*str != '\"') { ep = str; return 0; } /* not a string! */ while (*ptr != '\"' && *ptr && ++len) if (*ptr++ == '\\') ptr++; /* Skip escaped quotes. */ /* This is how long we need for the string, roughly. */ out = (char*)cJSON_malloc(len + 1); if (!out) return 0; ptr = str + 1; ptr2 = out; while (*ptr != '\"' && *ptr) { if (*ptr != '\\') { *ptr2++ = *ptr++; continue; } ptr++; switch (*ptr) { case 'b': *ptr2++ = '\b'; break; case 'f': *ptr2++ = '\f'; break; case 'n': *ptr2++ = '\n'; break; case 'r': *ptr2++ = '\r'; break; case 't': *ptr2++ = '\t'; break; case 'u': /* transcode utf16 to utf8. */ uc = parse_hex4(ptr + 1); ptr += 4; /* get the unicode char. */ if ((uc >= 0xDC00 && uc <= 0xDFFF) || uc == 0) break; /* check for invalid. */ /* UTF16 surrogate pairs. */ if (uc >= 0xD800 && uc <= 0xDBFF) { if (ptr[1] != '\\' || ptr[2] != 'u') { /* missing second-half of surrogate. */ break; } uc2 = parse_hex4(ptr + 3); ptr += 6; if (uc2 < 0xDC00 || uc2 > 0xDFFF) { /* invalid second-half of surrogate. */ break; } uc = (((uc & 0x3FF) << 10) | (uc2 & 0x3FF)) + 0x10000; } len = 4; if (uc < 0x80) len = 1; else if (uc < 0x800) len = 2; else if (uc < 0x10000) len = 3; ptr2 += len; switch (len) { case 4: *--ptr2 = ((uc | 0x80) & 0xBF); uc >>= 6; case 3: *--ptr2 = ((uc | 0x80) & 0xBF); uc >>= 6; case 2: *--ptr2 = ((uc | 0x80) & 0xBF); uc >>= 6; case 1: *--ptr2 = (uc | firstByteMark[len]); } ptr2 += len; break; default: *ptr2++ = *ptr; break; } ptr++; } *ptr2 = 0; if (*ptr == '\"') ptr++; item->valuestring = out; item->type = cJSON_String; return ptr; } /* Predeclare these prototypes. */ static const char *parse_value(cJSON *item, const char *value); static const char *parse_array(cJSON *item, const char *value); static const char *parse_object(cJSON *item, const char *value); /* Utility to jump whitespace and cr/lf */ static const char *skip(const char *in) { while (in && *in && (unsigned char)*in <= 32) in++; return in; } /* Parse an object - create a new root, and populate. */ cJSON *cJSON_ParseWithOpts(const char *value, const char **return_parse_end, int require_null_terminated) { const char *end = 0; cJSON *c = cJSON_New_Item(); ep = 0; if (!c) return 0; /* memory fail */ end = parse_value(c, skip(value)); if (!end) { cJSON_Delete(c); return 0; } /* parse failure. ep is set. */ /* * if we require null-terminated JSON without appended garbage, * skip and then check for a null terminator */ if (require_null_terminated) { end = skip(end); if (*end) { cJSON_Delete(c); ep = end; return 0; } } if (return_parse_end) *return_parse_end = end; return c; } /* Default options for cJSON_Parse */ cJSON *cJSON_Parse(const char *value) { return cJSON_ParseWithOpts(value, 0, 0); } /* Parser core - when encountering text, process appropriately. */ static const char *parse_value(cJSON *item, const char *value) { if (!value) return 0; /* Fail on null. */ if (!strncmp(value, "null", 4)) { item->type = cJSON_NULL; return value + 4; } if (!strncmp(value, "false", 5)) { item->type = cJSON_False; return value + 5; } if (!strncmp(value, "true", 4)) { item->type = cJSON_True; return value + 4; } if (*value == '\"') return parse_string(item, value); if (*value == '-' || (*value >= '0' && *value <= '9')) return parse_number(item, value); if (*value == '[') return parse_array(item, value); if (*value == '{') return parse_object(item, value); ep = value; return 0; /* failure. */ } /* Build an array from input text. */ static const char *parse_array(cJSON *item, const char *value) { cJSON *child; if (*value != '[') { ep = value; return 0; } /* not an array! */ item->type = cJSON_Array; value = skip(value + 1); if (*value == ']') return value + 1; /* empty array. */ item->child = child = cJSON_New_Item(); if (!item->child) return 0; /* memory fail */ /* skip any spacing, get the value. */ value = skip(parse_value(child, skip(value))); if (!value) return 0; while (*value == ',') { cJSON *new_item; if (!(new_item = cJSON_New_Item())) return 0; /* memory fail */ child->next = new_item; new_item->prev = child; child = new_item; value = skip(parse_value(child, skip(value + 1))); if (!value) return 0; /* memory fail */ } if (*value == ']') return value + 1; /* end of array */ ep = value; return 0; /* malformed. */ } /* Build an object from the text. */ static const char *parse_object(cJSON *item, const char *value) { cJSON *child; if (*value != '{') { ep = value; return 0; } /* not an object! */ item->type = cJSON_Object; value = skip(value + 1); if (*value == '}') return value + 1; /* empty array. */ item->child = child = cJSON_New_Item(); if (!item->child) return 0; value = skip(parse_string(child, skip(value))); if (!value) return 0; child->string = child->valuestring; child->valuestring = 0; if (*value != ':') { ep = value; return 0; } /* fail! */ value = skip(parse_value(child, skip(value + 1))); /* skip any spacing, get the value. */ if (!value) return 0; while (*value == ',') { cJSON *new_item; if (!(new_item = cJSON_New_Item())) return 0; /* memory fail */ child->next = new_item; new_item->prev = child; child = new_item; value = skip(parse_string(child, skip(value + 1))); if (!value) return 0; child->string = child->valuestring; child->valuestring = 0; if (*value != ':') { ep = value; return 0; } /* fail! */ value = skip(parse_value(child, skip(value + 1))); /* skip any spacing, get the value. */ if (!value) return 0; } if (*value == '}') return value + 1; /* end of array */ ep = value; return 0; /* malformed. */ } /* Get Array size/item / object item. */ int cJSON_GetArraySize(cJSON *array) { cJSON *c = array->child; int i = 0; while (c) { i++; c = c->next; } return i; } cJSON *cJSON_GetArrayItem(cJSON *array, int item) { cJSON *c = array->child; while (c && item > 0) { item--; c = c->next; } return c; } cJSON *cJSON_GetObjectItem(cJSON *object, const char *string) { cJSON *c = object->child; while (c && cJSON_strcasecmp(c->string, string)) c = c->next; return c; } jool-4.0.7/src/usr/util/str_utils.h0000664000175000017500000000647213576225301014203 00000000000000#ifndef SRC_USR_UTIL_STR_UTILS_H_ #define SRC_USR_UTIL_STR_UTILS_H_ /** * @file * Two-liners (since you need to check the return value) for string-to-something * else conversions. * This is very noisy on the console on purpose because it is only used by the * parser of the userspace app's arguments. */ #include "result.h" #include "common/types.h" /** * Parses @str as a boolean value, which it then copies to @out. */ struct jool_result str_to_bool(const char *str, __u8 *out); struct jool_result validate_int(const char *str); /** * Parses @str" as a number, which it then copies to @out. * Refuses to succeed if @out is less than @min or higher than @max. */ struct jool_result str_to_u8(const char *str, __u8 *out, __u8 min, __u8 max); struct jool_result str_to_u16(const char *str, __u16 *out, __u16 min, __u16 max); struct jool_result str_to_u32(const char *str, __u32 *out, __u32 min, __u32 max); struct jool_result str_to_u64(const char *str, __u64 *out, __u64 min, __u64 max); struct jool_result str_to_timeout(const char *str, __u32 *out, __u32 min, __u32 max); struct jool_result str_to_port_range(char *str, struct port_range *range); /** * Parses @str as a comma-separated array of __u16s, which it then copies to * @result. * * @result is assumed to length PLATEAUS_MAX elements. The actual length is * going to be copied to @count. */ struct jool_result str_to_plateaus_array(const char *str, __u16 *plateaus, __u16 *count); /** * Converts "str" to a IPv4 address. Stores the result in "result". * * Useful mainly in code common to kernelspace and userspace, since their * conversion functions differ, but meant to be used everywhere to strip the * parameters from in4_pton() we don't want. */ struct jool_result str_to_addr4(const char *str, struct in_addr *result); /** * Converts "str" to a IPv6 address. Stores the result in "result". * * Useful mainly in code common to kernelspace and userspace, since their * conversion functions differ, but meant to be used everywhere to strip the * parameters from in6_pton() we don't want. */ struct jool_result str_to_addr6(const char *str, struct in6_addr *result); /** * Parses @str as a '#' separated l3-address and l4-identifier, which it then * copies to @out". */ struct jool_result str_to_addr4_port(const char *str, struct ipv4_transport_addr *out); struct jool_result str_to_addr6_port(const char *str, struct ipv6_transport_addr *out); /** * Parses @str as an IP prefix (/), which it then copies * to @out. * If str contains no mask, it will default to @out's maximum sensible mask. */ struct jool_result str_to_prefix6(const char *str, struct ipv6_prefix *out); struct jool_result str_to_prefix4(const char *str, struct ipv4_prefix *out); /** * Converts the @millis amount of milliseconds to a string. * The format is "HH:MM:SS.mmm". * The allocated size of @string must be TIMEOUT_BUFLEN. */ void timeout2str(unsigned int millis, char *string); /* * If my math is correct, the hour part of it can span up to 12 digits. * ((2^64 - 1) / (60 * 60 * 1000)) * If it includes milliseconds, the longest possible string is * "123456789ABC:12:12.123" plus null chara. * Rounded up to the next power of 2 because I'm a wuss. */ #define TIMEOUT_BUFLEN 32 #define STR_EQUAL(s1, s2) (strcmp(s1, s2) == 0) #endif /* SRC_USR_UTIL_STR_UTILS_H_ */ jool-4.0.7/src/usr/util/result.h0000664000175000017500000000132213576225301013456 00000000000000#ifndef SRC_USR_UTIL_RESULT_H_ #define SRC_USR_UTIL_RESULT_H_ #include /* -- Jool Result Flags -- */ /* Does msg need to be freed? */ #define JRF_MSG_IN_HEAP (1 << 0) /* * Was this jool_result initialized? * This flag is not always set properly. It's only needed when the code might * fail in code that's not jool_result-aware. 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ps-am tags tags-am uninstall uninstall-am \ uninstall-pkglibLTLIBRARIES .PRECIOUS: Makefile # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: jool-4.0.7/src/usr/util/cJSON.h0000664000175000017500000000655313576225301013067 00000000000000/* * Copyright (c) 2009 Dave Gamble * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #ifndef SRC_USR_UTIL_CJSON_H_ #define SRC_USR_UTIL_CJSON_H_ /* cJSON Types: */ #define cJSON_False 0 #define cJSON_True 1 #define cJSON_NULL 2 #define cJSON_Number 3 #define cJSON_String 4 #define cJSON_Array 5 #define cJSON_Object 6 #define cJSON_IsReference 256 #define cJSON_StringIsConst 512 typedef enum valuenum_flags { VALUENUM_INT = (1 << 0), VALUENUM_UINT = (1 << 1), VALUENUM_DBL = (1 << 2), } valuenum_flags; /* The cJSON structure: */ typedef struct cJSON { /* * next/prev allow you to walk array/object chains. * Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */ struct cJSON *next; struct cJSON *prev; /* An array or object item will have a child pointer pointing to a chain * of the items in the array/object. */ struct cJSON *child; /* The type of the item, as above. */ int type; /* The item's string, if type==cJSON_String */ char *valuestring; /* The item's number, if type==cJSON_Number */ int valueint; unsigned int valueuint; double valuedouble; valuenum_flags numflags; /* * The item's name string, if this item is the child of, * or is in the list of subitems of an object. */ char *string; } cJSON; /* * Supply a block of JSON, and this returns a cJSON object you can interrogate. * Call cJSON_Delete when finished. */ cJSON *cJSON_Parse(const char *value); /* Delete a cJSON entity and all subentities. */ void cJSON_Delete(cJSON *c); /* Returns the number of items in an array (or object). */ int cJSON_GetArraySize(cJSON *array); /* Returns item number "item" from array "array". NULL if unsuccessful. */ cJSON *cJSON_GetArrayItem(cJSON *array, int item); /* Get item "string" from object. Case insensitive. */ cJSON *cJSON_GetObjectItem(cJSON *object, const char *string); /* * For analysing failed parses. This returns a pointer to the parse error. * You'll probably need to look a few chars back to make sense of it. * Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */ const char *cJSON_GetErrorPtr(void); /* * ParseWithOpts allows you to require (and check) that the JSON is * null-terminated, and to retrieve the pointer to the final byte parsed. */ cJSON *cJSON_ParseWithOpts(const char *value, const char **return_parse_end, int require_null_terminated); #endif /* SRC_USR_UTIL_CJSON_H_ */ jool-4.0.7/src/usr/util/str_utils.c0000664000175000017500000003024513576244253014200 00000000000000#include "str_utils.h" #include #include #include #include #include #include "common/config.h" #define MAX_PORT 0xFFFF /* The maximum network length for IPv4. */ static const __u8 IPV4_MAX_PREFIX = 32; /* The maximum network length for IPv6. */ static const __u8 IPV6_MAX_PREFIX = 128; char *configmode_to_string(enum config_mode mode) { switch (mode) { case MODE_INSTANCE: return OPTNAME_INSTANCE; case MODE_ADDRESS: return OPTNAME_ADDRESS; case MODE_STATS: return OPTNAME_STATS; case MODE_GLOBAL: return OPTNAME_GLOBAL; case MODE_EAMT: return OPTNAME_EAMT; case MODE_BLACKLIST: return OPTNAME_BLACKLIST; case MODE_POOL4: return OPTNAME_POOL4; case MODE_BIB: return OPTNAME_BIB; case MODE_SESSION: return OPTNAME_SESSION; case MODE_JOOLD: return OPTNAME_JOOLD; case MODE_PARSE_FILE: return OPTNAME_PARSE_FILE; } return "unknown"; } struct jool_result validate_uint(const char *str) { regex_t uint_regex; int error; if (!str) { return result_from_error( -EINVAL, "Programming error: 'str' is NULL." ); } /* It seems this RE implementation doesn't understand '+'. */ if (regcomp(&uint_regex, "^[0-9][0-9]*", 0)) { fprintf(stderr, "Warning: Integer regex didn't compile.\n"); fprintf(stderr, "(I will be unable to validate integer inputs.)\n"); regfree(&uint_regex); /* * Don't punish the user over our incompetence. * If the number is valid, this will not bother the user. * Otherwise strtoull() will just read a random value, but then * the user is at fault. */ return result_success(); } error = regexec(&uint_regex, str, 0, NULL, 0); regfree(&uint_regex); if (error) { return result_from_error( error, "'%s' is not an unsigned integer. (error code %d)", str, error ); } return result_success(); } static struct jool_result str_to_ull(const char *str, char **endptr, const unsigned long long int min, const unsigned long long int max, unsigned long long int *out) { unsigned long long int parsed; struct jool_result result; result = validate_uint(str); if (result.error) return result; errno = 0; parsed = strtoull(str, endptr, 10); if (errno) { return result_from_error( errno, "Parsing of '%s' threw error code %d.", str, errno ); } if (parsed < min || max < parsed) { return result_from_error( -EINVAL, "'%s' is out of bounds (%llu-%llu).", str, min, max ); } *out = parsed; return result_success(); } struct jool_result str_to_bool(const char *str, __u8 *bool_out) { if (strcasecmp(str, "true") == 0 || strcasecmp(str, "1") == 0 || strcasecmp(str, "yes") == 0 || strcasecmp(str, "on") == 0) { *bool_out = true; return result_success(); } if (strcasecmp(str, "false") == 0 || strcasecmp(str, "0") == 0 || strcasecmp(str, "no") == 0 || strcasecmp(str, "off") == 0) { *bool_out = false; return result_success(); } return result_from_error( -EINVAL, "Cannot parse '%s' as a bool (true|false|1|0|yes|no|on|off).", str ); } struct jool_result str_to_u8(const char *str, __u8 *u8_out, __u8 min, __u8 max) { unsigned long long int out; struct jool_result result; result = str_to_ull(str, NULL, min, max, &out); if (result.error) return result; *u8_out = out; return result_success(); } struct jool_result str_to_u16(const char *str, __u16 *u16_out, __u16 min, __u16 max) { unsigned long long int out; struct jool_result result; result = str_to_ull(str, NULL, min, max, &out); *u16_out = out; return result; } struct jool_result str_to_u32(const char *str, __u32 *u32_out, __u32 min, __u32 max) { unsigned long long int out; struct jool_result result; result = str_to_ull(str, NULL, min, max, &out); *u32_out = out; return result; } struct jool_result str_to_u64(const char *str, __u64 *u64_out, __u64 min, __u64 max) { unsigned long long int out; struct jool_result result; result = str_to_ull(str, NULL, min, max, &out); *u64_out = out; return result; } static struct jool_result out_of_bounds(const char *str, __u32 min, __u32 max) { char str_min[TIMEOUT_BUFLEN]; char str_max[TIMEOUT_BUFLEN]; timeout2str(min, str_min); timeout2str(max, str_max); return result_from_error( -EINVAL, "'%s' is out of bounds (%s-%s).", str, str_min, str_max ); } struct jool_result str_to_timeout(const char *str, __u32 *out, __u32 min, __u32 max) { unsigned long long int seconds = 0; unsigned long long int milliseconds; char *tail; errno = 0; seconds = strtoull(str, &tail, 10); if (errno) goto parse_failure; if (*tail == ':') { errno = 0; seconds = 60 * seconds + strtoull(tail + 1, &tail, 10); if (errno) goto parse_failure; if (*tail == ':') { errno = 0; seconds = 60 * seconds + strtoull(tail + 1, &tail, 10); if (errno) goto parse_failure; } } milliseconds = 1000 * seconds; if (*tail == '.') { if (strlen(tail + 1) < 3) goto msec_length; errno = 0; milliseconds += strtoull(tail + 1, &tail, 10); if (errno) goto parse_failure; } if (*tail != '\0') goto postfix; if (milliseconds < min || max < milliseconds) return out_of_bounds(str, min, max); *out = milliseconds; return result_success(); parse_failure: return result_from_error( errno, "Parsing of '%s' threw error code %d.", str, errno ); msec_length: return result_from_error( -EINVAL, "The millisecond portion of '%s' must length at least 3 digits.", str ); postfix: return result_from_error( -EINVAL, "'%s' does not seem to follow the '[HH:[MM:]]SS[.mmm]' format.", str ); } struct jool_result str_to_port_range(char *str, struct port_range *range) { unsigned long long int tmp; char *endptr = NULL; struct jool_result result; result = str_to_ull(str, &endptr, 0, 65535, &tmp); if (result.error) return result; range->min = tmp; if (*endptr != '-') { range->max = range->min; return result_success(); } result = str_to_ull(endptr + 1, NULL, 0, 65535, &tmp); if (!result.error) { range->max = tmp; return result; } return result_success(); } struct jool_result str_to_plateaus_array(const char *str, __u16 *plateaus, __u16 *count) { /* strtok corrupts the string, so we'll be using this copy instead. */ char *str_copy; char *token; unsigned int len; struct jool_result result; /* Validate str and copy it to the temp buffer. */ str_copy = malloc(strlen(str) + 1); if (!str_copy) return result_from_enomem(); strcpy(str_copy, str); /* Count the number of elements in the string. */ len = 0; token = strtok(str_copy, ","); while (token) { len++; token = strtok(NULL, ","); } if (len == 0) { free(str_copy); return result_from_error( -EINVAL, "The plateaus string cannot be empty." ); } if (len > PLATEAUS_MAX) { free(str_copy); return result_from_error( -EINVAL, "Too many plateaus. The current max is %u.", PLATEAUS_MAX ); } /* Build the result. */ *count = len; len = 0; strcpy(str_copy, str); token = strtok(str_copy, ","); while (token) { result = str_to_u16(token, &plateaus[len], 0, 0xFFFF); if (result.error) { free(str_copy); return result; } len++; token = strtok(NULL, ","); } free(str_copy); return result_success(); } struct jool_result str_to_addr4(const char *str, struct in_addr *addr) { if (!inet_pton(AF_INET, str, addr)) { return result_from_error( -EINVAL, "Cannot parse '%s' as an IPv4 address.", str ); } return result_success(); } struct jool_result str_to_addr6(const char *str, struct in6_addr *addr) { if (!inet_pton(AF_INET6, str, addr)) { return result_from_error( -EINVAL, "Cannot parse '%s' as an IPv6 address.", str ); } return result_success(); } #undef STR_MAX_LEN /* [addr + null chara] + # + port */ #define STR_MAX_LEN (INET_ADDRSTRLEN + 1 + 5) struct jool_result str_to_addr4_port(const char *str, struct ipv4_transport_addr *addr_out) { const char *FORMAT = "# (eg. 203.0.113.8#80)"; /* strtok corrupts the string, so we'll be using this copy instead. */ char str_copy[STR_MAX_LEN]; char *token; struct jool_result result; if (strlen(str) + 1 > STR_MAX_LEN) { return result_from_error( -EINVAL, "'%s' is too long for this poor, limited parser...", str ); } strcpy(str_copy, str); token = strtok(str_copy, "#"); if (!token) { return result_from_error( -EINVAL, "Cannot parse '%s' as a %s.", str, FORMAT ); } result = str_to_addr4(token, &addr_out->l3); if (result.error) return result; token = strtok(NULL, "#"); if (!token) { return result_from_error( -EINVAL, "'%s' does not seem to contain a port (format: %s).", str, FORMAT ); } return str_to_u16(token, &addr_out->l4, 0, MAX_PORT); } #undef STR_MAX_LEN /* [addr + null chara] + # + port */ #define STR_MAX_LEN (INET6_ADDRSTRLEN + 1 + 5) struct jool_result str_to_addr6_port(const char *str, struct ipv6_transport_addr *addr_out) { const char *FORMAT = "# (eg. 2001:db8::1#96)"; /* strtok corrupts the string, so we'll be using this copy instead. */ char str_copy[STR_MAX_LEN]; char *token; struct jool_result result; if (strlen(str) + 1 > STR_MAX_LEN) { return result_from_error( -EINVAL, "'%s' is too long for this poor, limited parser...", str ); } strcpy(str_copy, str); token = strtok(str_copy, "#"); if (!token) { return result_from_error( -EINVAL, "Cannot parse '%s' as a %s.", str, FORMAT ); } result = str_to_addr6(token, &addr_out->l3); if (result.error) return result; token = strtok(NULL, "#"); if (!token) { return result_from_error( -EINVAL, "'%s' does not seem to contain a port (format: %s).", str, FORMAT ); } return str_to_u16(token, &addr_out->l4, 0, MAX_PORT); } #undef STR_MAX_LEN /* [addr + null chara] + / + mask */ #define STR_MAX_LEN (INET_ADDRSTRLEN + 1 + 2) struct jool_result str_to_prefix4(const char *str, struct ipv4_prefix *prefix_out) { const char *FORMAT = "[/] (eg. 192.0.2.0/24)"; /* strtok corrupts the string, so we'll be using this copy instead. */ char str_copy[STR_MAX_LEN]; char *token; struct jool_result result; if (strlen(str) + 1 > STR_MAX_LEN) { return result_from_error( -EINVAL, "'%s' is too long for this poor, limited parser...", str ); } strcpy(str_copy, str); token = strtok(str_copy, "/"); if (!token) { return result_from_error( -EINVAL, "Cannot parse '%s' as a %s.", str, FORMAT ); } result = str_to_addr4(token, &prefix_out->addr); if (result.error) return result; token = strtok(NULL, "/"); if (!token) { prefix_out->len = IPV4_MAX_PREFIX; return result_success(); } return str_to_u8(token, &prefix_out->len, 0, 32); } #undef STR_MAX_LEN /* [addr + null chara] + / + pref len */ #define STR_MAX_LEN (INET6_ADDRSTRLEN + 1 + 3) struct jool_result str_to_prefix6(const char *str, struct ipv6_prefix *prefix_out) { const char *FORMAT = "[/] (eg. 64:ff9b::/96)"; /* strtok corrupts the string, so we'll be using this copy instead. */ char str_copy[STR_MAX_LEN]; char *token; struct jool_result result; if (strlen(str) + 1 > STR_MAX_LEN) { return result_from_error( -EINVAL, "'%s' is too long for this poor, limited parser...", str ); } strcpy(str_copy, str); token = strtok(str_copy, "/"); if (!token) { return result_from_error( -EINVAL, "Cannot parse '%s' as a %s.", str, FORMAT ); } result = str_to_addr6(token, &prefix_out->addr); if (result.error) return result; token = strtok(NULL, "/"); if (!token) { prefix_out->len = IPV6_MAX_PREFIX; return result_success(); } return str_to_u8(token, &prefix_out->len, 0, 128); } void timeout2str(unsigned int millis, char *buffer) { static const unsigned int MILLIS_PER_SECOND = 1000; static const unsigned int MILLIS_PER_MIN = 60000; static const unsigned int MILLIS_PER_HOUR = 3600000; unsigned int hours; unsigned int minutes; unsigned int seconds; int offset; hours = millis / MILLIS_PER_HOUR; millis -= hours * MILLIS_PER_HOUR; minutes = millis / MILLIS_PER_MIN; millis -= minutes * MILLIS_PER_MIN; seconds = millis / MILLIS_PER_SECOND; millis -= seconds * MILLIS_PER_SECOND; offset = snprintf(buffer, TIMEOUT_BUFLEN, "%u:%02u:%02u", hours, minutes, seconds); if (millis) { snprintf(buffer + offset, TIMEOUT_BUFLEN - offset, ".%03u", millis); } } jool-4.0.7/src/usr/util/Makefile.am0000664000175000017500000000035113576225301014024 00000000000000pkglib_LTLIBRARIES = libjoolutil.la libjoolutil_la_SOURCES = \ cJSON.c cJSON.h \ file.c file.h \ result.c result.h \ str_utils.c str_utils.h libjoolutil_la_CFLAGS = ${WARNINGCFLAGS} libjoolutil_la_CFLAGS += -I${srcdir}/../../ jool-4.0.7/src/usr/util/file.c0000664000175000017500000000322013576225301013051 00000000000000#include "file.h" #include #include #include #include /** * Remember to free @result when you're done. */ struct jool_result file_to_string(char *file_name, char **out) { FILE *file; long int length; long int total_read; size_t current_read; char *buffer; int error; file = fopen(file_name, "rb"); if (!file) { error = errno; return result_from_error( error, "Could not open file \"%s\": %s", file_name, strerror(error) ); } error = fseek(file, 0, SEEK_END); if (error) { error = errno; fclose(file); return result_from_error( error, "Could not seek the end of file \"%s\" (1): %s", file_name, strerror(error) ); } length = ftell(file); if (length == -1) { error = errno; fclose(file); return result_from_error( error, "Could not ftell on file \"%s\": %s", file_name, strerror(error) ); } error = fseek(file, 0, SEEK_SET); if (error) { error = errno; fclose(file); return result_from_error( error, "Could not fseek on file \"%s\" (2): %s", file_name, strerror(error) ); } buffer = malloc(length + 1); if (!buffer) { fclose(file); return result_from_enomem(); } total_read = 0; while (total_read < length) { current_read = fread(&buffer[total_read], 1, length, file); if (current_read == 0 && ferror(file)) { free(buffer); fclose(file); /* There's literally no way to get an error code. */ return result_from_error( -EINVAL, "File read error. (Sorry; there's no error message.)" ); } total_read += current_read; } fclose(file); buffer[total_read] = '\0'; *out = buffer; return result_success(); } jool-4.0.7/src/usr/util/result.c0000664000175000017500000000234013576225301013452 00000000000000#include "result.h" #include #include #include #include #include #include struct jool_result result_success(void) { struct jool_result result; result.error = 0; result.msg = NULL; result.flags = JRF_INITIALIZED; return result; } struct jool_result result_from_error(int error_code, char const *msg, ...) { static const size_t MAX_STR_LEN = 1024; struct jool_result result; va_list args; if (error_code == 0) error_code = -EINVAL; /* We know there's an error */ /* TODO (NOW) handle caller wants us to fail silently. */ result.error = error_code; result.flags = JRF_INITIALIZED | JRF_MSG_IN_HEAP; result.msg = malloc(MAX_STR_LEN); if (!result.msg) { result.msg = strerror(error_code); /* "Best effort" */ result.flags = JRF_INITIALIZED; return result; } va_start(args, msg); vsnprintf(result.msg, MAX_STR_LEN, msg, args); va_end(args); return result; } struct jool_result result_from_enomem(void) { struct jool_result result; result.error = -ENOMEM; result.msg = strerror(-ENOMEM); result.flags = JRF_INITIALIZED; return result; } void result_cleanup(struct jool_result *result) { if (result->flags & JRF_MSG_IN_HEAP) free(result->msg); } jool-4.0.7/src/usr/joold/0000775000175000017500000000000013576247347012221 500000000000000jool-4.0.7/src/usr/joold/netsocket.c0000664000175000017500000002602213576225301014270 00000000000000#include "usr/joold/netsocket.h" #include #include #include #include #include #include #include #include #include #include #include "log.h" #include "modsocket.h" #include "common/config.h" #include "common/types.h" #include "usr/util/cJSON.h" #include "usr/util/file.h" #include "usr/util/str_utils.h" struct netsocket_config { /** Address where the sessions will be advertised. Lacks a default. */ char *mcast_addr; /** UDP port where the sessions will be advertised. Lacks a default. */ char *mcast_port; /** * On IPv4, this should be one addresses from the interface where the * multicast traffic is expected to be received. * On IPv6, this should be the name of the interface (eg. "eth0"). * Defaults to NULL, which has the kernel choose an interface for us. */ char *in_interface; /** Just like @in_interface, except for outgoing packets. */ char *out_interface; int reuseaddr; bool reuseaddr_set; int ttl; bool ttl_set; }; static int sk; /** Processed version of the configuration's hostname and service. */ static struct addrinfo *addr_candidates; /** Candidate from @addr_candidates that we managed to bind the socket with. */ static struct addrinfo *bound_address; static struct in_addr *get_addr4(struct addrinfo *addr) { return &((struct sockaddr_in *)addr->ai_addr)->sin_addr; } static struct in6_addr *get_addr6(struct addrinfo *addr) { return &((struct sockaddr_in6 *)addr->ai_addr)->sin6_addr; } bool is_multicast4(struct in_addr *addr) { return (addr->s_addr & htonl(0xf0000000)) == htonl(0xe0000000); } bool is_multicast6(struct in6_addr *addr) { return (addr->s6_addr32[0] & htonl(0xff000000)) == htonl(0xff000000); } static int validate_valueint(cJSON *json, char *field) { if (json->numflags & VALUENUM_INT) return 0; syslog(LOG_ERR, "%s '%s' is not a valid integer.", field, json->valuestring); return -EINVAL; } static int json_to_config(cJSON *json, struct netsocket_config *cfg) { char *missing; cJSON *child; int error; memset(cfg, 0, sizeof(*cfg)); child = cJSON_GetObjectItem(json, "multicast address"); if (!child) { missing = "multicast address"; goto fail; } cfg->mcast_addr = child->valuestring; child = cJSON_GetObjectItem(json, "multicast port"); if (!child) { missing = "multicast port"; goto fail; } cfg->mcast_port = child->valuestring; child = cJSON_GetObjectItem(json, "in interface"); cfg->in_interface = child ? child->valuestring : NULL; child = cJSON_GetObjectItem(json, "out interface"); cfg->out_interface = child ? child->valuestring : NULL; child = cJSON_GetObjectItem(json, "reuseaddr"); if (child) { error = validate_valueint(child, "reuseaddr"); if (error) return error; cfg->reuseaddr_set = true; cfg->reuseaddr = child->valueint; } child = cJSON_GetObjectItem(json, "ttl"); if (child) { error = validate_valueint(child, "ttl"); if (error) return error; cfg->ttl_set = true; cfg->ttl = child->valueint; } return 0; fail: syslog(LOG_ERR, "The field '%s' is mandatory; please include it in the file.", missing); return 1; } int read_json(int argc, char **argv, cJSON **out) { char *file_name; char *file; cJSON *json; struct jool_result result; file_name = (argc >= 2) ? argv[1] : "netsocket.json"; syslog(LOG_INFO, "Opening file %s...", file_name); result = file_to_string(file_name, &file); if (result.error) return pr_result(&result); json = cJSON_Parse(file); if (!json) { syslog(LOG_ERR, "JSON syntax error."); syslog(LOG_ERR, "The JSON parser got confused around about here:"); syslog(LOG_ERR, "%s", cJSON_GetErrorPtr()); free(file); return 1; } free(file); *out = json; return 0; } static int try_address(struct netsocket_config *config) { sk = socket(bound_address->ai_family, bound_address->ai_socktype, bound_address->ai_protocol); if (sk < 0) { pr_perror("socket() failed", errno); return 1; } /* (Do not reorder this. SO_REUSEADDR needs to happen before bind().) */ if (config->reuseaddr_set) { syslog(LOG_INFO, "Setting SO_REUSEADDR as %d...", config->reuseaddr); /* http://stackoverflow.com/questions/14388706 */ if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &config->reuseaddr, sizeof(config->reuseaddr))) { pr_perror("setsockopt(SO_REUSEADDR) failed", errno); return 1; } } if (bind(sk, bound_address->ai_addr, bound_address->ai_addrlen)) { pr_perror("bind() failed", errno); return 1; } syslog(LOG_INFO, "The socket to the network was created."); return 0; } static int create_socket(struct netsocket_config *config) { struct addrinfo hints = { 0 }; int err; syslog(LOG_INFO, "Getting address info of %s#%s...", config->mcast_addr, config->mcast_port); hints.ai_socktype = SOCK_DGRAM; err = getaddrinfo(config->mcast_addr, config->mcast_port, &hints, &addr_candidates); if (err) { syslog(LOG_ERR, "getaddrinfo() failed: %s", gai_strerror(err)); return err; } bound_address = addr_candidates; while (bound_address) { syslog(LOG_INFO, "Trying an address candidate..."); err = try_address(config); if (!err) return 0; bound_address = bound_address->ai_next; } syslog(LOG_ERR, "None of the candidates yielded a valid socket."); freeaddrinfo(addr_candidates); return 1; } static int mcast4opt_add_membership(struct netsocket_config *cfg) { struct ip_mreq mreq; struct jool_result result; mreq.imr_multiaddr = *get_addr4(bound_address); if (cfg->in_interface) { result = str_to_addr4(cfg->in_interface, &mreq.imr_interface); if (result.error) { pr_result(&result); return 1; } } else { mreq.imr_interface.s_addr = htonl(INADDR_ANY); } if (setsockopt(sk, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq))) { pr_perror("-> setsockopt(IP_ADD_MEMBERSHIP) failed", errno); return 1; } syslog(LOG_INFO, "-> We're now registered to the multicast group."); return 0; } static int mcast4opt_disable_loopback(void) { int loop = 0; if (setsockopt(sk, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop))) { pr_perror("-> setsockopt(IP_MULTICAST_LOOP) failed", errno); return 1; } syslog(LOG_INFO, "-> Multicast loopback disabled."); return 0; } static int mcast4opt_set_ttl(struct netsocket_config *cfg) { if (!cfg->ttl_set) return 0; if (setsockopt(sk, IPPROTO_IP, IP_MULTICAST_TTL, &cfg->ttl, sizeof(cfg->ttl))) { pr_perror("-> setsockopt(IP_MULTICAST_TTL) failed", errno); return 1; } syslog(LOG_INFO, "-> Tweaked the TTL of multicasts."); return 0; } static int mcast4opt_set_out_interface(struct netsocket_config *cfg) { struct in_addr addr; struct jool_result result; if (!cfg->out_interface) return 0; result = str_to_addr4(cfg->out_interface, &addr); if (result.error) { pr_result(&result); return 1; } if (setsockopt(sk, IPPROTO_IP, IP_MULTICAST_IF, &addr, sizeof(addr))) { pr_perror("-> setsockopt(IP_MULTICAST_IF) failed", errno); return 1; } syslog(LOG_INFO, "-> The outgoing interface was overridden."); return 0; } static int handle_mcast4_opts(struct netsocket_config *cfg) { int error; error = mcast4opt_add_membership(cfg); if (error) return error; error = mcast4opt_disable_loopback(); if (error) return error; error = mcast4opt_set_ttl(cfg); if (error) return error; return mcast4opt_set_out_interface(cfg); } static int mcast6opt_add_membership(struct netsocket_config *cfg) { struct ipv6_mreq mreq; mreq.ipv6mr_multiaddr = *get_addr6(bound_address); if (cfg->in_interface) { mreq.ipv6mr_interface = if_nametoindex(cfg->in_interface); if (!mreq.ipv6mr_interface) { pr_perror("The incoming interface name is invalid", errno); return 1; } } else { mreq.ipv6mr_interface = 0; /* Any interface. */ } if (setsockopt(sk, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &mreq, sizeof(mreq))) { pr_perror("setsockopt(IPV6_ADD_MEMBERSHIP) failed", errno); return 1; } syslog(LOG_INFO, "We're now registered to the multicast group."); return 0; } static int mcast6opt_disable_loopback(void) { int loop = 0; if (setsockopt(sk, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &loop, sizeof(loop))) { pr_perror("setsockopt(IP_MULTICAST_LOOP) failed", errno); return 1; } syslog(LOG_INFO, "Multicast loopback disabled."); return 0; } static int mcast6opt_set_ttl(struct netsocket_config *cfg) { if (!cfg->ttl_set) return 0; if (setsockopt(sk, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &cfg->ttl, sizeof(cfg->ttl))) { pr_perror("setsockopt(IPV6_MULTICAST_HOPS) failed", errno); return 1; } syslog(LOG_INFO, "Tweaked the TTL of multicasts."); return 0; } static int mcast6opt_set_out_interface(struct netsocket_config *cfg) { unsigned int interface; if (!cfg->out_interface) return 0; interface = if_nametoindex(cfg->out_interface); if (!interface) { pr_perror("The outgoing interface name is invalid", errno); return 1; } if (setsockopt(sk, IPPROTO_IPV6, IPV6_MULTICAST_IF, &interface, sizeof(interface))) { pr_perror("setsockopt(IP_MULTICAST_IF) failed", errno); return 1; } syslog(LOG_INFO, "The outgoing interface was overridden."); return 0; } static int handle_mcast6_opts(struct netsocket_config *cfg) { int error; error = mcast6opt_add_membership(cfg); if (error) return error; error = mcast6opt_disable_loopback(); if (error) return error; error = mcast6opt_set_ttl(cfg); if (error) return error; return mcast6opt_set_out_interface(cfg); } static int adjust_mcast_opts(struct netsocket_config *cfg) { syslog(LOG_INFO, "Configuring multicast options on the socket..."); switch (bound_address->ai_family) { case AF_INET: return handle_mcast4_opts(cfg); case AF_INET6: return handle_mcast6_opts(cfg); } syslog(LOG_INFO, "I don't know how to tweak multicast socket options for address family %d.", bound_address->ai_family); return 1; } int netsocket_setup(int argc, char **argv) { cJSON *json; struct netsocket_config cfg; int error; error = read_json(argc, argv, &json); if (error) return error; error = json_to_config(json, &cfg); if (error) goto end; error = create_socket(&cfg); if (error) goto end; error = adjust_mcast_opts(&cfg); if (error) { close(sk); freeaddrinfo(addr_candidates); goto end; } /* Fall through. */ end: cJSON_Delete(json); return error; } void netsocket_teardown(void) { close(sk); freeaddrinfo(addr_candidates); } void *netsocket_listen(void *arg) { char buffer[JOOLD_MAX_PAYLOAD]; int bytes; syslog(LOG_INFO, "Listening..."); do { bytes = recv(sk, buffer, sizeof(buffer), 0); if (bytes < 0) { pr_perror("Error receiving packet from the network", errno); continue; } syslog(LOG_DEBUG, "Received %d bytes from the network.", bytes); modsocket_send(buffer, bytes); } while (true); return NULL; } void netsocket_send(void *buffer, size_t size) { int bytes; syslog(LOG_DEBUG, "Sending %zu bytes to the network...", size); bytes = sendto(sk, buffer, size, 0, bound_address->ai_addr, bound_address->ai_addrlen); if (bytes < 0) pr_perror("Could not send a packet to the network", errno); else syslog(LOG_DEBUG, "Sent %d bytes to the network.\n", bytes); } jool-4.0.7/src/usr/joold/modsocket.h0000664000175000017500000000052713576225301014270 00000000000000#ifndef SRC_USR_JOOLD_MODSOCKET_H_ #define SRC_USR_JOOLD_MODSOCKET_H_ /** * This is the socket we use to talk to the kernel module. */ #include int modsocket_setup(void); void modsocket_teardown(void); void *modsocket_listen(void *arg); void modsocket_send(void *buffer, size_t size); #endif /* SRC_USR_JOOLD_MODSOCKET_H_ */ jool-4.0.7/src/usr/joold/log.c0000664000175000017500000000100713576225301013046 00000000000000#include "log.h" #include #include int pr_result(struct jool_result *result) { int error = result->error; if (error) syslog(LOG_ERR, "%s", result->msg); result_cleanup(result); return error; } void pr_perror(char *prefix, int error) { char buffer[256]; if (strerror_r(error, buffer, sizeof(buffer))) { syslog(LOG_ERR, "%s: %d", prefix, error); syslog(LOG_ERR, "(Sorry. 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error = pthread_cancel(thread); if (!error) pthread_join(thread, NULL); /* * else: * Well, `man 3 pthread_cancel` just `exit(EXIT_FAILURE)`s when * `pthread_cancel()` fails. * Let's instead be good citizens by closing the sockets anyway. */ } int main(int argc, char **argv) { pthread_t mod2net_thread; pthread_t net2mod_thread; int error; printf("Remember that joold is intended as a daemon, so it outputs straight to syslog.\n"); printf("(Syslog normally sends messages to /var/log/syslog by default.)\n"); printf("The standard streams will mostly shut up from now on.\n"); printf("---------------------------------------------\n"); openlog("joold", 0, LOG_DAEMON); error = netsocket_setup(argc, argv); if (error) goto end; error = modsocket_setup(); if (error) { netsocket_teardown(); goto end; } error = pthread_create(&mod2net_thread, NULL, modsocket_listen, NULL); if (error) { pr_perror("Module-to-network thread initialization", error); goto clean; } error = pthread_create(&net2mod_thread, NULL, netsocket_listen, NULL); if (error) { pr_perror("Network-to-module thread initialization", error); cancel_thread(mod2net_thread); goto clean; } pthread_join(net2mod_thread, NULL); pthread_join(mod2net_thread, NULL); /* Fall through. */ clean: modsocket_teardown(); netsocket_teardown(); /* Fall through. */ end: closelog(); if (error) fprintf(stderr, "joold error: %d\n", error); return error; } jool-4.0.7/src/usr/joold/joold.80000664000175000017500000001053713576225301013331 00000000000000.\" Manpage for jool's session synchronization daemon. .TH joold 8 2018-05-23 v3.6.0 "NAT64 Jool's Session Synchronization Daemon" .SH NAME joold - Userspace Session Synchronization (SS) daemon for NAT64 Jool. .SH DESCRIPTION Opens two sockets: A Netlink socket to the current namespace's NAT64 Jool instance, and a network TCP socket to other/remote joold instances. Exchanges sessions indiscriminately between them. .P The intent is to keep the NAT64 session databases synchronized for the sake of having backup fallback NAT64s. .P The setup is strongly recommended to be Active/Passive; Active/Active is technically allowed, but not very reliable. .P Running the daemons is not enough to have successful session synchronization; SS needs to be enabled in the kernel instances as well. (See the --ss-* flags described in jool(8).) .SH AVAILABILITY Linux is the only OS in which this program makes sense. .br Kernels 3.2.0 and up. .SH SYNTAX .RI "joold [" FILE "]" .SH OPTIONS .IP FILE Path to JSON file containing the network socket's configuration. .br Defaults to "netsocket.json". .br (The Netlink socket currently does not need configuration.) .SH NETWORK SOCKET CONFIGURATION The file is a JSON-formatted collection of keyvalues. .IP "multicast address=" IP Address the SS traffic will be sent to and listened from. .br Mandatory; has no default. .IP "multicast port=" TCP port where the SS traffic will be sent to and listened from. .br Mandatory; has no default. .IP "in interface=" If multicast address is IPv4, this should be one addresses from the interface where the SS traffic is expected to be received. If multicast address is IPv6, this should be the name of the interface (eg. "eth0"). .br Optional. Defaults to be automatically assigned by the kernel. .br It is strongly recommended that you define this value to ensure the SS traffic does not leak through other interfaces. .IP "out interface=" If multicast address is IPv4, this should be one addresses from the interface where the multicast traffic is expected to be sent. If multicast address is IPv6, this should be the name of the interface (eg. "eth0"). .br Optional. Defaults to be automatically assigned by the kernel. .br It is strongly recommended that you define this value to ensure the SS traffic does not leak through other interfaces. .IP reuseaddr= Please always include and enable this. .IP ttl= Time-to-live of packets sent out by this socket. .SH EXAMPLES IPv6 version: .P $ # All Jool instances should have the basic configuration. .br $ jool --file same-config-as-everyone-else.json .br $ .br $ # Configure the SS interface .br $ ip addr add 2001:db8:ff08::4/96 dev eth0 .br $ ip link set eth0 up .br $ .br $ # joold .br $ cat ipv6-netsocket.json .br { .br "multicast address": "ff08::db8:64:64", .br "multicast port": "6464", .br "in interface": "eth0", .br "out interface": "eth0", .br "reuseaddr": 1, .br "ttl": 3 .br } .br $ joold ipv6-netsocket.json & .P IPv4 version: .P $ # All Jool instances should have the basic configuration. .br $ jool --file same-config-as-everyone-else.json .br $ .br $ # Configure the SS interface .br $ ip addr add 192.0.2.1/24 dev eth0 .br $ ip link set eth0 up .br $ .br $ # joold .br $ cat ipv4-netsocket.json .br { .br "multicast address": "233.252.0.64", .br "multicast port": "6464", .br "in interface": "192.0.2.1", .br "out interface": "192.0.2.1", .br "reuseaddr": 1, .br "ttl": 3 .br } .br $ joold ipv4-netsocket.json & .SH EXIT STATUS Zero on success, non-zero on failure. .SH AUTHOR NIC Mexico & ITESM .SH REPORTING BUGS Our issue tracker is https://github.com/NICMx/Jool/issues. .br If you want to mail us instead, use jool@nic.mx. .SH KNOWN BUGS 1. reuseaddr should probably default to 1... .br 2. Maybe the daemon should be able to automatically enable SS on the kernel module. .P To be perfectly honest, the main reason why fixing this isn't in the radar is because joold is giving me the impression that nobody is using it. .SH COPYRIGHT Copyright 2018 NIC Mexico. .br License: GPLv2 (GNU GPL version 2) .br This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. .SH SEE ALSO https://jool.mx/en/session-synchronization.html https://jool.mx/en/config-joold.html https://jool.mx/en/usr-flags-joold.html jool-4.0.7/src/usr/joold/modsocket.c0000664000175000017500000001161613576225301014264 00000000000000#include "modsocket.h" #include #include #include #include #include #include #include "log.h" #include "netsocket.h" #include "common/config.h" #include "common/types.h" #include "usr/nl/jool_socket.h" /** Receives Generic Netlink packets from the kernel module. */ static struct jool_socket jsocket; static int validate_magic(struct request_hdr *hdr, char *sender) { if (hdr->magic[0] != 'j' || hdr->magic[1] != 'o') goto fail; if (hdr->magic[2] != 'o' || hdr->magic[3] != 'l') goto fail; return 0; fail: /* Well, the sender does not understand the protocol. */ syslog(LOG_ERR, "The %s sent a message that lacks the Jool magic text.", sender); return -EINVAL; } static int validate_version(struct request_hdr *hdr, char *sender, char *receiver) { __u32 hdr_version = ntohl(hdr->version); if (xlat_version() == hdr_version) return 0; syslog(LOG_ERR, "Version mismatch. The %s's version is %u.%u.%u.%u,\n" "but the %s is %u.%u.%u.%u.\n" "Please update the %s.", sender, hdr_version >> 24, (hdr_version >> 16) & 0xFFU, (hdr_version >> 8) & 0xFFU, hdr_version & 0xFFU, receiver, JOOL_VERSION_MAJOR, JOOL_VERSION_MINOR, JOOL_VERSION_REV, JOOL_VERSION_DEV, (xlat_version() > hdr_version) ? sender : receiver); return -EINVAL; } int validate_request(void *data, size_t data_len, char *sender, char *receiver) { int error; if (data_len < sizeof(struct request_hdr)) { syslog(LOG_ERR, "Message from the %s is smaller than Jool's header.", sender); return -EINVAL; } error = validate_magic(data, sender); if (error) return error; return validate_version(data, sender, receiver); } void modsocket_send(void *request, size_t request_len) { struct jool_result result; if (validate_request(request, request_len, "joold peer", "local joold")) return; /* TODO (NOW) iname */ result = netlink_send(&jsocket, NULL, request, request_len); pr_result(&result); } static void send_ack(void) { struct request_hdr hdr; init_request_hdr(&hdr, XT_NAT64, MODE_JOOLD, OP_ACK, false); modsocket_send(&hdr, sizeof(hdr)); } /** * Called when joold receives data from kernelspace. * This data can be either sessions that should be multicasted to other joolds * or a response to something sent by modsocket_send(). */ static int updated_entries_cb(struct nl_msg *msg, void *arg) { struct nlattr *attrs[__ATTR_MAX + 1]; struct request_hdr *data; size_t data_size; char castness; struct jool_response response; struct jool_result result; syslog(LOG_DEBUG, "Received a packet from kernelspace."); result.error = genlmsg_parse(nlmsg_hdr(msg), 0, attrs, __ATTR_MAX, NULL); if (result.error) { syslog(LOG_ERR, "genlmsg_parse() failed: %s", nl_geterror(result.error)); return result.error; } if (!attrs[ATTR_DATA]) { syslog(LOG_ERR, "The request from kernelspace lacks a DATA attribute."); return -EINVAL; } data = nla_data(attrs[ATTR_DATA]); if (!data) { syslog(LOG_ERR, "The request from kernelspace is empty!"); return -EINVAL; } data_size = nla_len(attrs[ATTR_DATA]); if (!data_size) { syslog(LOG_ERR, "The request from kernelspace has zero bytes."); return -EINVAL; } result.error = validate_request(data, data_size, "the kernel module", "joold daemon"); if (result.error) return result.error; castness = data->castness; switch (castness) { case 'm': netsocket_send(data, data_size); /* handle request. */ send_ack(); return 0; case 'u': result = netlink_parse_response(data, data_size, &response); return pr_result(&result); } syslog(LOG_ERR, "Packet sent by the module has unknown castness: %c", castness); return -EINVAL; } int modsocket_setup(void) { int family_mc_grp; struct jool_result result; result = netlink_setup(&jsocket, XT_NAT64); if (result.error) return pr_result(&result); result.error = nl_socket_modify_cb(jsocket.sk, NL_CB_VALID, NL_CB_CUSTOM, updated_entries_cb, NULL); if (result.error) { syslog(LOG_ERR, "Couldn't modify receiver socket's callbacks."); goto fail; } family_mc_grp = genl_ctrl_resolve_grp(jsocket.sk, GNL_JOOL_FAMILY, GNL_JOOLD_MULTICAST_GRP_NAME); if (family_mc_grp < 0) { syslog(LOG_ERR, "Unable to resolve the Netlink multicast group."); result.error = family_mc_grp; goto fail; } result.error = nl_socket_add_membership(jsocket.sk, family_mc_grp); if (result.error) { syslog(LOG_ERR, "Can't register to the Netlink multicast group."); goto fail; } return 0; fail: netlink_teardown(&jsocket); syslog(LOG_ERR, "Netlink error message: %s", nl_geterror(result.error)); return result.error; } void modsocket_teardown(void) { netlink_teardown(&jsocket); } void *modsocket_listen(void *arg) { int error; do { error = nl_recvmsgs_default(jsocket.sk); if (error < 0) { syslog(LOG_ERR, "Error receiving packet from kernelspace: %s", nl_geterror(error)); } } while (true); return 0; } jool-4.0.7/src/usr/joold/log.h0000664000175000017500000000065213576225301013060 00000000000000#ifndef SRC_USR_JOOLD_LOG_H_ #define SRC_USR_JOOLD_LOG_H_ #include "usr/util/result.h" int pr_result(struct jool_result *result); /** * Prints @prefix, then a colon, then @error's standard error message, then a * newline. * * Replaces perror(). (Because perror print into standard error.) * perror() should not be used anywhere in joold! */ void pr_perror(char *prefix, int error); #endif /* SRC_USR_JOOLD_LOG_H_ */ jool-4.0.7/src/usr/joold/netsocket.h0000664000175000017500000000057313576225301014300 00000000000000#ifndef SRC_USR_JOOLD_NETSOCKET_H_ #define SRC_USR_JOOLD_NETSOCKET_H_ /** * This is the socket we use to talk to other joold instances in the network. */ #include int netsocket_setup(int argc, char **argv); void netsocket_teardown(void); void *netsocket_listen(void *arg); void netsocket_send(void *buffer, size_t size); #endif /* SRC_USR_JOOLD_NETSOCKET_H_ */ jool-4.0.7/src/usr/siit/0000775000175000017500000000000013576247347012062 500000000000000jool-4.0.7/src/usr/siit/jool_siit.80000664000175000017500000001553713576244253014072 00000000000000.\" Manpage for jool's userspace app. .\" Report bugs to jool@nic.mx. .TH jool_siit 8 2019-12-17 v4.0.7 "SIIT Jool's Userspace Client" .SH NAME jool_siit - Interact with SIIT Jool (the kernel module). .SH DESCRIPTION Sends commands and requests to SIIT Jool. .br SIIT Jool is a kernel module you load into a Linux kernel. It implements RFC 7915. .SH AVAILABILITY Linux is the only OS in which this program makes sense. .br Kernels 3.13.0 and up. .SH SYNTAX .RI "jool_siit [" "] instance (" .br display .br [--csv] .br [--no-headers] .br | add .br .I [] .br (--netfilter | --iptables) .br .RI " [--pool6 " "]" .br | remove .br .I [] .br | flush .br .RI " | " .br ) .P .RI "jool_siit [" "] stats (" .br display .br [--csv] .br [--no-headers] .br [--all] .br [--explain] .br .RI " | " .br ) .P .RI "jool_siit [" "] global (" .br display .br [--csv] .br [--no-headers] .br | update .br .I .br .RI " | " .br ) .P .RI "jool_siit [" "] eamt (" .br display .br [--csv] .br [--no-headers] .br | add .br .RI " " .br [--force] .br | remove .br .RI " " .br | flush .br .RI " | " .br ) .P .RI "jool_siit [" "] address (" .br .RI " query [--verbose] " "" .br ) .P .RI "jool_siit [" "] blacklist4 (" .br display .br [--csv] .br [--no-headers] .br | add .br .RI " " .br [--force] .br | remove .br .RI " " .br | flush .br .RI " | " .br ) .P .RI "jool_siit [" "] file (" .br .RI " handle " .br .RI " | " .br ) .P .IR " := (" " | --instance " " | --file " ")" .P .IR " := (--help | --usage | --version)" .SH OPTIONS .SS Modes and Operations .IP "instance display" Show all instances from all namespaces. .IP "instance add" Create a new instance. .IP "instance remove" Drop an existing instance. .IP "instance flush" Drop all instances from the current namespace. .IP "stats display" Show internal counters. .IP "global display" Show the current values of the instance's tweakable internal variables. .IP "global update" Tweak one of the instance's internal variables. .IP "eamt display" Show the EAM table. .IP "eamt add" Upload an entry to the EAM table. .IP "eamt remove" Drop an entry from the EAM table. .IP "eamt flush" Empty the EAM table. .IP "address query" Print the translated version of the given address using the current configuration. .IP "blacklist4 display" Show the blacklist. .IP "blacklist4 add" Upload an entry to the blacklist. .IP "blacklist4 remove" Drop an entry from the blacklist. .IP "blacklist4 flush" Empty the blacklist. .IP "file handle" Parse all the configuration from a JSON file. .br Create instance if it doesn't exist, update if it does. .SS Flags .IP "--instance " Name of the instance you want to interact with. .br It's an ASCII string, 15 characters max. Defaults to 'default'. .IP "--file " JSON file which contains the name of the instance you want to interact with. .br Same JSON structure as the one from atomic configuration. .IP --csv Output in CSV table format. .IP --no-headers Do not print table headers. (Nor footer, if applies.) .IP --netfilter Sit the instance on top of the Netfilter framework. .IP --iptables Sit the instance on top of the iptables framework. .IP "--pool6 " Contents of the new instance's IPv6 pool. .br The format is 'PREFIX_ADDRESS[/PREFIX_LENGTH]'. .IP --all Show all the counters. .br (Otherwise, only the nonzero ones are printed.) .IP --explain Show a description of each counter. .IP --verbose Print some details regarding the translation operation. .IP --force Apply operation even if certain validations fail. .SS Other Arguments .IP " " Name of the variable you want to edit (see 'Globals' section), and its new value. .IP "" The format is IPV6_ADDRESS[/PREFIX_LENGTH]. PREFIX_LENGTH defaults to 128. .IP "" The format is IPV4_ADDRESS[/PREFIX_LENGTH]. PREFIX_LENGTH defaults to 32. .IP Name of the instance you want to add or remove. .br If --instance or --file were included in , then the instance names must match. .IP Path to a JSON file. .SS Globals .IP "manually-enabled " Enable or disable the instance. .IP "pool6 ( | null)" The IPv6 pool's prefix. .br The format is 'PREFIX_ADDRESS[/PREFIX_LENGTH]'. .br Use null to clear. .IP "zeroize-traffic-class " Always set the IPv6 header's 'Traffic Class' field as zero? .br Otherwise copy from IPv4 header's 'TOS'. .IP "override-tos " Override the IPv4 header's 'TOS' field as --tos? .br Otherwise copy from IPv6 header's 'Traffic Class'. .IP "tos " Value to override TOS as (only when override-tos is ON) .IP "mtu-plateaus " Set the list of plateaus for ICMPv4 Fragmentation Neededs with MTU unset. .IP "amend-udp-checksum-zero " Compute the UDP checksum of IPv4-UDP packets whose value is zero? .br Otherwise drop the packet. .IP "eam-hairpin-mode (simple | intrinsic | off)" Defines how EAM+hairpinning is handled. .IP "randomize-rfc6791-addresses " Randomize selection of address from the RFC6791 pool? .br Otherwise choose the 'Hop Limit'th address. .IP "rfc6791v6-prefix ( | null)" IPv6 prefix to generate RFC6791v6 addresses from. .br Use null to clear. .IP "rfc6791v4-prefix ( | null)" IPv4 prefix to generate RFC6791v4 addresses from. .br Use null to clear. .SH EXAMPLES Create a new instance named "Example": .br jool_siit instance add Example --iptables .P Print the globals: .br jool_siit -i Example global display .P Change the IPv6 pool prefix: .br jool_siit -i Example global update pool6 2001:db8::/96 .P Print the Explicit Address Mappings Table (EAMT): .br jool_siit -i Example eamt display .P Add an entry to the EAMT: .br jool_siit -i Example eamt add 2001:db8::/120 192.0.2.0/24 .P Remove an entry from the EAMT: .br jool_siit -i Example eamt remove 2001:db8::/120 .P Add blacklist prefix 192.0.2.0/24: .br jool_siit -i Example blacklist4 add 192.0.2.0/24 .P Allow translation of 192.0.2.0/24: .br jool_siit -i Example blacklist4 remove 192.0.2.0/24 .SH NOTES TRUE, FALSE, 1, 0, YES, NO, ON and OFF are all valid booleans. You can mix case too. .SH EXIT STATUS Zero on success, non-zero on failure. .SH AUTHOR NIC Mexico & ITESM .SH REPORTING BUGS Our issue tracker is https://github.com/NICMx/Jool/issues. If you want to mail us instead, use jool@nic.mx. .SH COPYRIGHT Copyright 2019 NIC Mexico. .br License: GPLv2 (GNU GPL version 2) .br This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. .SH SEE ALSO https://www.jool.mx .br https://www.jool.mx/en/documentation.html jool-4.0.7/src/usr/siit/jool_siit.bash0000664000175000017500000000175413507461072014626 00000000000000_jool_siit() { # Given the following incomplete command: # # $ jool_siit global update m # # This function (_jool_siit()) gets called when the user hits tab. # It is expected to place the autocompletion candidates (in this # case, `manually-enabled` and `mtu-plateaus`) in the COMPREPLY variable. # # # COMP_WORDS is an array that contains all the tokens the user # has written so far. (Hence `(jool_siit global update m)`.) # COMP_CWORD is the index of the "current" token. 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} jool-4.0.7/src/usr/argp/requirements.h0000664000175000017500000000035613576225301014645 00000000000000#ifndef SRC_USR_ARGP_REQUIREMENTS_H_ #define SRC_USR_ARGP_REQUIREMENTS_H_ #include struct requirement { bool set; char *what; }; int requirement_print(struct requirement *reqs); #endif /* SRC_USR_ARGP_REQUIREMENTS_H_ */ jool-4.0.7/src/usr/argp/xlator_type.c0000664000175000017500000000022413576225301014461 00000000000000#include "xlator_type.h" static xlator_type xtype = -1; void xt_set(xlator_type xt) { xtype = xt; } xlator_type xt_get(void) { return xtype; } jool-4.0.7/src/usr/argp/wargp.c0000664000175000017500000001300313576225301013226 00000000000000#include "wargp.h" #include #include #include "log.h" #include "common/xlat.h" #include "common/constants.h" #include "usr/util/str_utils.h" const char *argp_program_version = JOOL_VERSION_STR; const char *argp_program_bug_address = "jool@nic.mx"; int wargp_parse_bool(void *input, int key, char *str); int wargp_parse_u32(void *field, int key, char *str); int wargp_parse_l4proto(void *input, int key, char *str); int wargp_parse_string(void *input, int key, char *str); int wargp_parse_addr(void *void_field, int key, char *str); int wargp_parse_prefix6(void *input, int key, char *str); int wargp_parse_prefix4(void *input, int key, char *str); struct wargp_type wt_bool = { /* Boolean opts need no argument; absence is false, presence is true. */ .argument = NULL, .parse = wargp_parse_bool, }; struct wargp_type wt_u32 = { .argument = "", .parse = wargp_parse_u32, }; struct wargp_type wt_l4proto = { /* The flag itself signals the protocol. */ .argument = NULL, .parse = wargp_parse_l4proto, }; struct wargp_type wt_string = { .argument = "", .parse = wargp_parse_string, }; struct wargp_type wt_addr = { .argument = "", .parse = wargp_parse_addr, }; /* * Because of the autocomplete candidates, this one is specifically meant to * refer to the pool6 prefix. */ struct wargp_type wt_prefix6 = { .argument = "", .parse = wargp_parse_prefix6, .candidates = WELL_KNOWN_PREFIX, }; struct wargp_type wt_prefix4 = { .argument = "", .parse = wargp_parse_prefix4, }; struct wargp_args { struct wargp_option *opts; unsigned char *input; }; int wargp_parse_bool(void *void_field, int key, char *str) { struct wargp_bool *field = void_field; field->value = true; return 0; } int wargp_parse_u32(void *field, int key, char *str) { struct jool_result result; result = str_to_u32(str, field, 0, MAX_U32); if (result.error) return pr_result(&result); return 0; } int wargp_parse_l4proto(void *void_field, int key, char *str) { struct wargp_l4proto *field = void_field; if (field->set) { pr_err("Only one protocol is allowed per request."); return -EINVAL; } switch (key) { case ARGP_TCP: field->proto = L4PROTO_TCP; field->set = true; return 0; case ARGP_UDP: field->proto = L4PROTO_UDP; field->set = true; return 0; case ARGP_ICMP: field->proto = L4PROTO_ICMP; field->set = true; return 0; } pr_err("Unknown protocol key: %d", key); return -EINVAL; } int wargp_parse_string(void *void_field, int key, char *str) { struct wargp_string *field = void_field; field->value = str; return 0; } int wargp_parse_addr(void *void_field, int key, char *str) { struct wargp_addr *field = void_field; struct jool_result result; if (strchr(str, ':')) { field->proto = 6; result = str_to_addr6(str, &field->addr.v6); return pr_result(&result); } if (strchr(str, '.')) { field->proto = 4; result = str_to_addr4(str, &field->addr.v4); return pr_result(&result); } return ARGP_ERR_UNKNOWN; } int wargp_parse_prefix6(void *void_field, int key, char *str) { struct wargp_prefix6 *field = void_field; struct jool_result result; field->set = true; result = str_to_prefix6(str, &field->prefix); if (result.error) return pr_result(&result); return 0; } int wargp_parse_prefix4(void *void_field, int key, char *str) { struct wargp_prefix4 *field = void_field; struct jool_result result; field->set = true; result = str_to_prefix4(str, &field->prefix); if (result.error) return pr_result(&result); return 0; } static int adapt_options(struct argp *argp, struct wargp_option *wopts, struct argp_option **result) { struct wargp_option *wopt; struct argp_option *opts; struct argp_option *opt; unsigned int i; unsigned int total_opts; if (!wopts) { *result = NULL; return 0; } total_opts = 0; for (i = 0; wopts[i].name; i++) if (wopts[i].key != ARGP_KEY_ARG) total_opts++; opts = calloc(total_opts + 1, sizeof(struct argp_option)); if (!opts) { pr_err("Out of memory."); return -ENOMEM; } argp->options = opts; wopt = wopts; opt = opts; while (wopt->name) { if (wopt->key != ARGP_KEY_ARG) { opt->name = wopt->name; opt->key = wopt->key; opt->arg = wopt->type->argument; opt->doc = wopt->doc; opt++; } else { if (argp->args_doc) { pr_err("Bug: Only one ARGP_KEY_ARG option is allowed per option list."); free(opts); return -EINVAL; } argp->args_doc = wopt->type->argument; } wopt++; } *result = opts; return 0; } static int wargp_parser(int key, char *str, struct argp_state *state) { struct wargp_args *wargs = state->input; struct wargp_option *opt; if (!wargs->opts) return ARGP_ERR_UNKNOWN; for (opt = wargs->opts; opt->name; opt++) { if (opt->key == key) { return opt->type->parse(wargs->input + opt->offset, key, str); } } return ARGP_ERR_UNKNOWN; } int wargp_parse(struct wargp_option *wopts, int argc, char **argv, void *input) { struct wargp_args wargs = { .opts = wopts, .input = input }; struct argp argp = { .parser = wargp_parser }; struct argp_option *opts; int error; error = adapt_options(&argp, wopts, &opts); if (error) return error; error = argp_parse(&argp, argc, argv, 0, NULL, &wargs); if (opts) free(opts); return error; } void print_wargp_opts(struct wargp_option *opts) { struct wargp_option *opt; for (opt = opts; opt->name; opt++) { if (opt->key != ARGP_KEY_ARG) printf("--%s ", opt->name); if (opt->type->candidates) printf("%s ", opt->type->candidates); } printf("--help --usage --version"); } jool-4.0.7/src/usr/argp/command.h0000664000175000017500000000335513576225301013542 00000000000000#ifndef SRC_USR_ARGP_COMMAND_H_ #define SRC_USR_ARGP_COMMAND_H_ #include #include "common/config.h" /** * BTW: "cmd" (command) refers to the "jool" command. Eg. * `jool jool0 pool4 add 192.0.2.1`. */ struct cmd_option { /** * Name this node is known by the userspace application interface. * This being NULL signals the end of the array. */ char *label; xlator_type xt; /** Hide this option from the user? */ bool hidden; /** * Array of cmd_options available after this one. * If this exists, then @child_builder and @handler.cb must be NULL. */ struct cmd_option *children; /** * A function that returns cmd_options available after this one. * If this exists, then @children and @handler.cb must be NULL. */ struct cmd_option *(*child_builder)(void); /** * A function that will handle any arguments after this one. * If this exists, then @children and @child_builder must be NULL. */ int (*handler)(char *iname, int argc, char **argv, void *args); /* * Prints the autocompletion candidates for the last element in @argv. * Used by bash autocomplete. * For example, if the user issued `jool bib display --t`, * then this function will receive `display --t`, and is expected to * print "--tcp" in standard output. * * Actually, current implementations will always print all the known * candidates given this cmd_option's context. This works well enough. */ void (*handle_autocomplete)(void *args); /* * Will be passed as the last argument to @handler and * @handle_autocomplete. */ void *args; /** Used by the code to chain temporarily correlated nodes at times. */ struct cmd_option *next; }; bool cmdopt_is_hidden(struct cmd_option *option); #endif /* SRC_USR_ARGP_COMMAND_H_ */ jool-4.0.7/src/usr/argp/wargp.h0000664000175000017500000000647513576225301013252 00000000000000#ifndef SRC_USR_ARGP_WARGP_H_ #define SRC_USR_ARGP_WARGP_H_ #include #include #include #include "common/types.h" /* * I guess that argp is more versatile than I need it for. I use it for very * simple option parsing, which leads to lots of clumsy, redundant code. * * So I made this module. "wargp" stands for "wrapped argp". It's simply a mask * over argp that removes a lot of annoying unneeded stuff. */ typedef int (*wargp_parse_type)(void *input, int key, char *str); struct wargp_type { /** * This is the same as argp_option.arg. * It's the name of the "argument" of the option. * For example, if you have a `--foo` flag, and you declare its * `argument` to be "", then argp will print this on `--help`: * `--foo=` */ char *argument; wargp_parse_type parse; /* * A (single) string listing the autocompletion candidates for the * values of this option, separated by spaces. */ char *candidates; }; extern struct wargp_type wt_bool; extern struct wargp_type wt_u32; extern struct wargp_type wt_l4proto; extern struct wargp_type wt_string; extern struct wargp_type wt_addr; extern struct wargp_type wt_prefix6; extern struct wargp_type wt_prefix4; struct wargp_option { const char *name; int key; const char *doc; size_t offset; struct wargp_type *type; }; struct wargp_bool { bool value; }; struct wargp_l4proto { bool set; l4_protocol proto; }; struct wargp_string { char *value; }; struct wargp_addr { __u8 proto; union { struct in6_addr v6; struct in_addr v4; } addr; }; struct wargp_prefix6 { bool set; struct ipv6_prefix prefix; }; struct wargp_prefix4 { bool set; struct ipv4_prefix prefix; }; #define ARGP_TCP 't' #define ARGP_UDP 'u' #define ARGP_ICMP 'i' #define ARGP_CSV 2000 #define ARGP_NO_HEADERS 2001 #define ARGP_NUMERIC 2002 #define ARGP_FORCE 'f' #define WARGP_TCP(container, field, description) \ { \ .name = "tcp", \ .key = ARGP_TCP, \ .doc = description, \ .offset = offsetof(container, field), \ .type = &wt_l4proto, \ } #define WARGP_UDP(container, field, description) \ { \ .name = "udp", \ .key = ARGP_UDP, \ .doc = description, \ .offset = offsetof(container, field), \ .type = &wt_l4proto, \ } #define WARGP_ICMP(container, field, description) \ { \ .name = "icmp", \ .key = ARGP_ICMP, \ .doc = description, \ .offset = offsetof(container, field), \ .type = &wt_l4proto, \ } #define WARGP_NO_HEADERS(container, field) \ { \ .name = "no-headers", \ .key = ARGP_NO_HEADERS, \ .doc = "Do not print table headers", \ .offset = offsetof(container, field), \ .type = &wt_bool, \ } #define WARGP_CSV(container, field) { \ .name = "csv", \ .key = ARGP_CSV, \ .doc = "Print in CSV format", \ .offset = offsetof(container, field), \ .type = &wt_bool, \ } #define WARGP_NUMERIC(container, field) { \ .name = "numeric", \ .key = ARGP_NUMERIC, \ .doc = "Do not resolve names", \ .offset = offsetof(container, field), \ .type = &wt_bool, \ } #define WARGP_FORCE(container, field) { \ .name = "force", \ .key = ARGP_FORCE, \ .doc = "Ignore warnings", \ .offset = offsetof(container, field), \ .type = &wt_bool, \ } int wargp_parse(struct wargp_option *wopts, int argc, char **argv, void *input); void print_wargp_opts(struct wargp_option *opts); #endif /* SRC_USR_ARGP_WARGP_H_ */ jool-4.0.7/src/usr/argp/log.c0000664000175000017500000000111513576225301012670 00000000000000#include "log.h" #include #include void pr_warn(const char *format, ...) { va_list args; fprintf(stderr, "Warning: "); va_start(args, format); vfprintf(stderr, format, args); va_end(args); fprintf(stderr, "\n"); } void pr_err(const char *format, ...) { va_list args; fprintf(stderr, "Error: "); va_start(args, format); vfprintf(stderr, format, args); va_end(args); fprintf(stderr, "\n"); } int pr_result(struct jool_result *result) { int error = result->error; if (error) pr_err("%s", result->msg); result_cleanup(result); return error; } jool-4.0.7/src/usr/argp/userspace-types.h0000664000175000017500000000043613576225301015255 00000000000000#ifndef SRC_USR_ARGP_USERSPACE_TYPES_H_ #define SRC_USR_ARGP_USERSPACE_TYPES_H_ #include bool show_csv_header(bool no_headers, bool csv); bool show_footer(bool no_headers, bool csv); 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mostlyclean-generic mostlyclean-libtool \ pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \ uninstall-pkglibLTLIBRARIES .PRECIOUS: Makefile # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: jool-4.0.7/src/usr/argp/Makefile.am0000664000175000017500000000152513576225301014004 00000000000000pkglib_LTLIBRARIES = libjoolargp.la libjoolargp_la_SOURCES = \ command.c command.h \ dns.c dns.h \ log.c log.h \ main.c main.h \ requirements.c requirements.h \ userspace-types.c userspace-types.h \ wargp.c wargp.h \ xlator_type.c xlator_type.h \ \ wargp/address.c wargp/address.h \ wargp/bib.c wargp/bib.h \ wargp/blacklist4.c wargp/blacklist4.h \ wargp/eamt.c wargp/eamt.h \ wargp/file.c wargp/file.h \ wargp/global.c wargp/global.h \ wargp/instance.c wargp/instance.h \ wargp/pool4.c wargp/pool4.h \ wargp/session.c wargp/session.h \ wargp/stats.c wargp/stats.h libjoolargp_la_CFLAGS = ${WARNINGCFLAGS} libjoolargp_la_CFLAGS += -I${srcdir}/../../ libjoolargp_la_CFLAGS += ${LIBNLGENL3_CFLAGS} libjoolargp_la_LIBADD = ${top_builddir}/src/usr/util/libjoolutil.la libjoolargp_la_LIBADD += ${top_builddir}/src/usr/nl/libjoolnl.la jool-4.0.7/src/usr/argp/requirements.c0000664000175000017500000000126513576225301014640 00000000000000#include "requirements.h" #include #include static struct requirement *get_next(struct requirement *current) { for (current++; current->what; current++) if (!current->set) return current; return NULL; } int requirement_print(struct requirement *reqs) { struct requirement *current; struct requirement *next; fprintf(stderr, "The command is missing "); for (current = reqs; current->what; current++) { if (current->set) continue; fprintf(stderr, "%s", current->what); next = get_next(current); if (next) { if (get_next(next)) fprintf(stderr, ", "); else fprintf(stderr, " and "); } } fprintf(stderr, ".\n"); return -EINVAL; } jool-4.0.7/src/usr/argp/dns.h0000664000175000017500000000047613576225301012711 00000000000000#ifndef SRC_USR_ARGP_DNS_H_ #define SRC_USR_ARGP_DNS_H_ #include "common/types.h" void print_addr6(struct ipv6_transport_addr *addr, bool numeric, char *separator, __u8 l4_proto); void print_addr4(struct ipv4_transport_addr *addr, bool numeric, char *separator, __u8 l4_proto); #endif /* SRC_USR_ARGP_DNS_H_ */ jool-4.0.7/src/usr/argp/log.h0000664000175000017500000000134613576225301012703 00000000000000#ifndef SRC_USR_ARGP_LOG_H_ #define SRC_USR_ARGP_LOG_H_ #include "usr/util/result.h" #if __GNUC__ #define CHECK_FORMAT(str, args) __attribute__((format(printf, str, args))) #else /* * No idea how this looks in other compilers. * It's safe to obviate since we're bound to see the warnings every time we use * GCC anyway. */ #define CHECK_FORMAT(str, args) /* Nothing */ #endif /** * Wrappers for fprintf(stderr), intended for full lines. * Why do we need them? Because I fucking hate to have to append a newline at * the end of every fprintf. */ void pr_warn(const char *fmt, ...) CHECK_FORMAT(1, 2); void pr_err(const char *fmt, ...) CHECK_FORMAT(1, 2); int pr_result(struct jool_result *result); #endif /* SRC_USR_ARGP_LOG_H_ */ jool-4.0.7/src/usr/argp/wargp/0000775000175000017500000000000013576247347013163 500000000000000jool-4.0.7/src/usr/argp/wargp/global.c0000664000175000017500000000726513576225301014503 00000000000000#include "global.h" #include "command.h" #include "log.h" #include "userspace-types.h" #include "wargp.h" #include "usr/argp/xlator_type.h" #include "usr/nl/global.h" #include "usr/nl/jool_socket.h" struct display_args { struct wargp_bool no_headers; struct wargp_bool csv; }; static struct wargp_option display_opts[] = { WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), { 0 }, }; #define get_field(config, field) ((unsigned char *)config + field->offset) static int handle_display_response(struct display_args *qargs, struct globals *conf) { struct global_field *field; print_function print; if (show_csv_header(qargs->no_headers.value, qargs->csv.value)) printf("Field,Value\n"); get_global_fields(&field, NULL); for (; field->name; field++) { if ((xt_get() & field->xt) == 0) continue; if (!qargs->csv.value) printf(" "); printf("%s%s", field->name, qargs->csv.value ? "," : ": "); print = field->print ? field->print : field->type->print; print(get_field(conf, field), qargs->csv.value); printf("\n"); } return 0; } int handle_global_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct globals config; struct jool_result result; result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = global_query(&sk, iname, &config); netlink_teardown(&sk); if (result.error) return pr_result(&result); return handle_display_response(&dargs, &config); } void autocomplete_global_display(void *args) { print_wargp_opts(display_opts); } struct update_args { struct wargp_string global_str; struct wargp_bool force; }; static struct wargp_option update_opts[] = { WARGP_FORCE(struct update_args, force), { .name = "Value", .key = ARGP_KEY_ARG, .doc = "New value the variable should be changed to", .offset = offsetof(struct update_args, global_str), .type = &wt_string, }, { 0 }, }; static int handle_global_update(char *iname, int argc, char **argv, void *arg) { struct update_args uargs = { 0 }; struct global_field *field = arg; void *value; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(update_opts, argc, argv, &uargs); if (result.error) return result.error; if (!uargs.global_str.value) { pr_err("Missing value of key %s.", argv[0]); return -EINVAL; } value = malloc(field->type->size); if (!value) return -ENOMEM; result = field->type->parse(field, uargs.global_str.value, value); if (result.error) goto end; result = netlink_setup(&sk, xt_get()); if (result.error) goto end; result = global_update(&sk, iname, field, value, uargs.force.value); netlink_teardown(&sk); /* Fall through */ end: free(value); return pr_result(&result); } void autocomplete_global_update(void *arg) { struct global_field *field = arg; if (field->candidates) printf("%s ", field->candidates); else if (field->type->candidates) printf("%s ", field->type->candidates); print_wargp_opts(update_opts); } struct cmd_option *build_global_update_children(void) { struct global_field *global_fields; unsigned int field_count; struct cmd_option *opts; unsigned int i; get_global_fields(&global_fields, &field_count); opts = calloc(field_count + 1, sizeof(struct cmd_option)); if (!opts) return NULL; for (i = 0; i < field_count; i++) { opts[i].label = global_fields[i].name; opts[i].xt = global_fields[i].xt; opts[i].handler = handle_global_update; opts[i].handle_autocomplete = autocomplete_global_update; opts[i].args = &global_fields[i]; } return opts; } jool-4.0.7/src/usr/argp/wargp/address.h0000664000175000017500000000035713576225301014670 00000000000000#ifndef SRC_USR_ARGP_WARGP_ADDRESS_H_ #define SRC_USR_ARGP_WARGP_ADDRESS_H_ int handle_address_query(char *iname, int argc, char **argv, void *arg); void autocomplete_address_query(void *args); #endif /* SRC_USR_ARGP_WARGP_ADDRESS_H_ */ jool-4.0.7/src/usr/argp/wargp/global.h0000664000175000017500000000044613576225301014502 00000000000000#ifndef SRC_USR_ARGP_WARGP_GLOBAL_H_ #define SRC_USR_ARGP_WARGP_GLOBAL_H_ int handle_global_display(char *iname, int argc, char **argv, void *arg); void autocomplete_global_display(void *args); struct cmd_option *build_global_update_children(void); #endif /* SRC_USR_ARGP_WARGP_GLOBAL_H_ */ jool-4.0.7/src/usr/argp/wargp/pool4.h0000664000175000017500000000107613576225301014277 00000000000000#ifndef SRC_USR_ARGP_WARGP_POOL4_H_ #define SRC_USR_ARGP_WARGP_POOL4_H_ int handle_pool4_display(char *iname, int argc, char **argv, void *arg); int handle_pool4_add(char *iname, int argc, char **argv, void *arg); int handle_pool4_remove(char *iname, int argc, char **argv, void *arg); int handle_pool4_flush(char *iname, int argc, char **argv, void *arg); void autocomplete_pool4_display(void *args); void autocomplete_pool4_add(void *args); void autocomplete_pool4_remove(void *args); void autocomplete_pool4_flush(void *args); #endif /* SRC_USR_ARGP_WARGP_POOL4_H_ */ jool-4.0.7/src/usr/argp/wargp/bib.c0000664000175000017500000001334713576225301013775 00000000000000#include "bib.h" #include #include "usr/argp/dns.h" #include "usr/argp/log.h" #include "usr/argp/requirements.h" #include "usr/argp/userspace-types.h" #include "usr/argp/wargp.h" #include "usr/argp/xlator_type.h" #include "usr/nl/bib.h" #include "usr/nl/jool_socket.h" #include "usr/util/str_utils.h" struct display_args { struct wargp_l4proto proto; struct wargp_bool no_headers; struct wargp_bool csv; struct wargp_bool numeric; }; static struct wargp_option display_opts[] = { WARGP_TCP(struct display_args, proto, "Print the TCP table (default)"), WARGP_UDP(struct display_args, proto, "Print the UDP table"), WARGP_ICMP(struct display_args, proto, "Print the ICMP table"), WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), WARGP_NUMERIC(struct display_args, numeric), { 0 }, }; static struct jool_result print_entry(struct bib_entry_usr *entry, void *args) { struct display_args *dargs = args; l4_protocol proto = entry->l4_proto; if (dargs->csv.value) { printf("%s,", l4proto_to_string(proto)); print_addr6(&entry->addr6, dargs->numeric.value, ",", proto); printf(","); print_addr4(&entry->addr4, true, ",", proto); printf(",%u\n", entry->is_static); } else { printf("[%s %s] ", entry->is_static ? "Static" : "Dynamic", l4proto_to_string(proto)); print_addr4(&entry->addr4, true, "#", proto); printf(" - "); print_addr6(&entry->addr6, dargs->numeric.value, "#", proto); printf("\n"); } return result_success(); } /* * BTW: This thing is not thread-safe because of the address-to-string v4 * function. */ int handle_bib_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); if (show_csv_header(dargs.no_headers.value, dargs.csv.value)) printf("Protocol,IPv6 Address,IPv6 L4-ID,IPv4 Address,IPv4 L4-ID,Static?\n"); result = bib_foreach(&sk, iname, dargs.proto.proto, print_entry, &dargs); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_bib_display(void *args) { print_wargp_opts(display_opts); } struct taddr_tuple { bool addr6_set; struct ipv6_transport_addr addr6; bool addr4_set; struct ipv4_transport_addr addr4; }; static int parse_taddr(void *void_field, int key, char *str) { struct taddr_tuple *field = void_field; struct jool_result result; if (strchr(str, ':')) { field->addr6_set = true; result = str_to_addr6_port(str, &field->addr6); return pr_result(&result); } if (strchr(str, '.')) { field->addr4_set = true; result = str_to_addr4_port(str, &field->addr4); return pr_result(&result); } return ARGP_ERR_UNKNOWN; } struct add_args { struct wargp_l4proto proto; struct taddr_tuple taddrs; }; struct wargp_type wt_taddr = { .argument = " ", .parse = parse_taddr, }; static struct wargp_option add_opts[] = { WARGP_TCP(struct add_args, proto, "Add the entry to the TCP table (default)"), WARGP_UDP(struct add_args, proto, "Add the entry to the UDP table"), WARGP_ICMP(struct add_args, proto, "Add the entry to the ICMP table"), { .name = "Transport addresses", .key = ARGP_KEY_ARG, .doc = "Transport addresses that shape the BIB entry you want to add", .offset = offsetof(struct add_args, taddrs), .type = &wt_taddr, }, { 0 }, }; int handle_bib_add(char *iname, int argc, char **argv, void *arg) { struct add_args aargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(add_opts, argc, argv, &aargs); if (result.error) return result.error; if (!aargs.taddrs.addr6_set || !aargs.taddrs.addr4_set) { struct requirement reqs[] = { { aargs.taddrs.addr6_set, "an IPv6 transport address" }, { aargs.taddrs.addr4_set, "an IPv4 transport address" }, { 0 }, }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = bib_add(&sk, iname, &aargs.taddrs.addr6, &aargs.taddrs.addr4, aargs.proto.proto); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_bib_add(void *args) { print_wargp_opts(add_opts); } struct rm_args { struct wargp_l4proto proto; struct taddr_tuple taddrs; }; static struct wargp_option remove_opts[] = { WARGP_TCP(struct rm_args, proto, "Remove the entry from the TCP table (default)"), WARGP_UDP(struct rm_args, proto, "Remove the entry from the UDP table"), WARGP_ICMP(struct rm_args, proto, "Remove the entry from the ICMP table"), { .name = "Transport addresses", .key = ARGP_KEY_ARG, .doc = "Transport addresses that shape the BIB entry you want to remove", .offset = offsetof(struct rm_args, taddrs), .type = &wt_taddr, }, { 0 }, }; int handle_bib_remove(char *iname, int argc, char **argv, void *arg) { struct rm_args rargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(remove_opts, argc, argv, &rargs); if (result.error) return result.error; if (!rargs.taddrs.addr6_set && !rargs.taddrs.addr4_set) { struct requirement reqs[] = { { rargs.taddrs.addr6_set || rargs.taddrs.addr4_set, "at least one transport address" }, { 0 }, }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = bib_rm(&sk, iname, rargs.taddrs.addr6_set ? &rargs.taddrs.addr6 : NULL, rargs.taddrs.addr4_set ? &rargs.taddrs.addr4 : NULL, rargs.proto.proto); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_bib_remove(void *args) { print_wargp_opts(remove_opts); } jool-4.0.7/src/usr/argp/wargp/eamt.h0000664000175000017500000000124313576225301014164 00000000000000#ifndef SRC_USR_ARGP_WARGP_EAMT_H_ #define SRC_USR_ARGP_WARGP_EAMT_H_ int handle_eamt_display(char *iname, int argc, char **argv, void *arg); int handle_eamt_add(char *iname, int argc, char **argv, void *arg); int handle_eamt_remove(char *iname, int argc, char **argv, void *arg); int handle_eamt_flush(char *iname, int argc, char **argv, void *arg); int handle_eamt_query(char *iname, int argc, char **argv, void *arg); void autocomplete_eamt_display(void *args); void autocomplete_eamt_add(void *args); void autocomplete_eamt_remove(void *args); void autocomplete_eamt_flush(void *args); void autocomplete_eamt_query(void *args); #endif /* SRC_USR_ARGP_WARGP_EAMT_H_ */ jool-4.0.7/src/usr/argp/wargp/blacklist4.h0000664000175000017500000000116213576225301015272 00000000000000#ifndef SRC_USR_ARGP_WARGP_BLACKLIST_H_ #define SRC_USR_ARGP_WARGP_BLACKLIST_H_ int handle_blacklist4_display(char *iname, int argc, char **argv, void *arg); int handle_blacklist4_add(char *iname, int argc, char **argv, void *arg); int handle_blacklist4_remove(char *iname, int argc, char **argv, void *arg); int handle_blacklist4_flush(char *iname, int argc, char **argv, void *arg); void autocomplete_blacklist4_display(void *args); void autocomplete_blacklist4_add(void *args); void autocomplete_blacklist4_remove(void *args); void autocomplete_blacklist4_flush(void *args); #endif /* SRC_USR_ARGP_WARGP_BLACKLIST_H_ */ jool-4.0.7/src/usr/argp/wargp/file.h0000664000175000017500000000034213576225301014154 00000000000000#ifndef SRC_USR_ARGP_WARGP_FILE_H_ #define SRC_USR_ARGP_WARGP_FILE_H_ int handle_file_update(char *iname, int argc, char **argv, void *arg); void autocomplete_file_update(void *args); #endif /* SRC_USR_ARGP_WARGP_FILE_H_ */ jool-4.0.7/src/usr/argp/wargp/session.c0000664000175000017500000000673413576225301014726 00000000000000#include "session.h" #include "dns.h" #include "common/config.h" #include "common/constants.h" #include "common/session.h" #include "usr/util/str_utils.h" #include "usr/nl/jool_socket.h" #include "usr/nl/session.h" #include "usr/argp/dns.h" #include "usr/argp/log.h" #include "usr/argp/userspace-types.h" #include "usr/argp/wargp.h" #include "usr/argp/xlator_type.h" struct display_args { struct wargp_bool no_headers; struct wargp_bool csv; struct wargp_bool numeric; struct wargp_l4proto proto; }; static struct wargp_option display_opts[] = { WARGP_TCP(struct display_args, proto, "Print the TCP table (default)"), WARGP_UDP(struct display_args, proto, "Print the UDP table"), WARGP_ICMP(struct display_args, proto, "Print the ICMP table"), WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), WARGP_NUMERIC(struct display_args, numeric), { 0 }, }; static char *tcp_state_to_string(tcp_state state) { switch (state) { case ESTABLISHED: return "ESTABLISHED"; case V4_INIT: return "V4_INIT"; case V6_INIT: return "V6_INIT"; case V4_FIN_RCV: return "V4_FIN_RCV"; case V6_FIN_RCV: return "V6_FIN_RCV"; case V4_FIN_V6_FIN_RCV: return "V4_FIN_V6_FIN_RCV"; case TRANS: return "TRANS"; } return "UNKNOWN"; } static struct jool_result handle_display_response( struct session_entry_usr *entry, void *args) { struct display_args *dargs = args; l4_protocol proto = dargs->proto.proto; char timeout[TIMEOUT_BUFLEN]; timeout2str(entry->dying_time, timeout); if (dargs->csv.value) { printf("%s,", l4proto_to_string(proto)); print_addr6(&entry->src6, dargs->numeric.value, ",", proto); printf(","); print_addr6(&entry->dst6, true, ",", proto); printf(","); print_addr4(&entry->src4, true, ",", proto); printf(","); print_addr4(&entry->dst4, dargs->numeric.value, ",", proto); printf(","); printf("%s", timeout); if (proto == L4PROTO_TCP) printf(",%s", tcp_state_to_string(entry->state)); printf("\n"); } else { if (proto == L4PROTO_TCP) printf("(%s) ", tcp_state_to_string(entry->state)); printf("Expires in %s\n", timeout); printf("Remote: "); print_addr4(&entry->dst4, dargs->numeric.value, "#", proto); printf("\t"); print_addr6(&entry->src6, dargs->numeric.value, "#", proto); printf("\n"); printf("Local: "); print_addr4(&entry->src4, true, "#", proto); printf("\t"); print_addr6(&entry->dst6, true, "#", proto); printf("\n"); printf("---------------------------------\n"); } return result_success(); } int handle_session_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); if (!dargs.csv.value) { printf("---------------------------------\n"); } else if (show_csv_header(dargs.no_headers.value, dargs.csv.value)) { printf("Protocol,"); printf("IPv6 Remote Address,IPv6 Remote L4-ID,"); printf("IPv6 Local Address,IPv6 Local L4-ID,"); printf("IPv4 Local Address,IPv4 Local L4-ID,"); printf("IPv4 Remote Address,IPv4 Remote L4-ID,"); printf("Expires in,State\n"); } result = session_foreach(&sk, iname, dargs.proto.proto, handle_display_response, &dargs); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_session_display(void *args) { print_wargp_opts(display_opts); } jool-4.0.7/src/usr/argp/wargp/blacklist4.c0000664000175000017500000001032113576225301015262 00000000000000#include "blacklist4.h" #include "usr/argp/log.h" #include "usr/argp/requirements.h" #include "usr/argp/userspace-types.h" #include "usr/argp/wargp.h" #include "usr/argp/xlator_type.h" #include "usr/nl/blacklist4.h" #include "usr/nl/jool_socket.h" #include "usr/util/str_utils.h" struct display_args { struct wargp_bool no_headers; struct wargp_bool csv; }; static struct wargp_option display_opts[] = { WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), { 0 }, }; static void print_separator(void) { print_table_separator(0, 18, 0); } static struct jool_result print_entry(struct ipv4_prefix *prefix, void *args) { struct display_args *dargs = args; char *prefix_str = inet_ntoa(prefix->addr); if (dargs->csv.value) printf("%s/%u\n", prefix_str, prefix->len); else printf("| %15s/%-2u |\n", prefix_str, prefix->len); return result_success(); } int handle_blacklist4_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); if (!dargs.no_headers.value) { char *th1 = "IPv4 Prefix"; if (dargs.csv.value) printf("%s\n", th1); else { print_separator(); printf("| %18s |\n", th1); print_separator(); } } result = blacklist4_foreach(&sk, iname, print_entry, &dargs); netlink_teardown(&sk); if (result.error) return pr_result(&result); if (!dargs.csv.value) print_separator(); return 0; } void autocomplete_blacklist4_display(void *args) { print_wargp_opts(display_opts); } struct add_args { bool force; struct wargp_prefix4 prefix; }; static struct wargp_option add_opts[] = { WARGP_FORCE(struct add_args, force), { .name = "Prefixes", .key = ARGP_KEY_ARG, .doc = "Prefixes (or addresses) that will shape the new EAMT entry", .offset = offsetof(struct add_args, prefix), .type = &wt_prefix4, }, { 0 }, }; int handle_blacklist4_add(char *iname, int argc, char **argv, void *arg) { struct add_args aargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(add_opts, argc, argv, &aargs); if (result.error) return result.error; if (!aargs.prefix.set) { struct requirement reqs[] = { { false, "an IPv4 prefix" }, { 0 }, }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = blacklist4_add(&sk, iname, &aargs.prefix.prefix, aargs.force); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_blacklist4_add(void *args) { print_wargp_opts(add_opts); } struct rm_args { struct wargp_prefix4 prefix; }; static struct wargp_option remove_opts[] = { { .name = "Prefixes", .key = ARGP_KEY_ARG, .doc = "Prefixes (or addresses) that shape the EAMT entry you want to remove", .offset = offsetof(struct rm_args, prefix), .type = &wt_prefix4, }, { 0 }, }; int handle_blacklist4_remove(char *iname, int argc, char **argv, void *arg) { struct rm_args rargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(remove_opts, argc, argv, &rargs); if (result.error) return result.error; if (!rargs.prefix.set) { struct requirement reqs[] = { { false, "an IPv4 prefix" }, { 0 }, }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = blacklist4_rm(&sk, iname, &rargs.prefix.prefix); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_blacklist4_remove(void *args) { print_wargp_opts(remove_opts); } int handle_blacklist4_flush(char *iname, int argc, char **argv, void *arg) { struct jool_socket sk; struct jool_result result; result.error = wargp_parse(NULL, argc, argv, NULL); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = blacklist4_flush(&sk, iname); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_blacklist4_flush(void *args) { /* Nothing needed here. */ } jool-4.0.7/src/usr/argp/wargp/instance.c0000664000175000017500000002020013576244253015036 00000000000000#include "instance.h" #include #include "log.h" #include "requirements.h" #include "wargp.h" #include "common/config.h" #include "common/constants.h" #include "usr/util/str_utils.h" #include "usr/nl/instance.h" #include "usr/nl/jool_socket.h" #include "usr/argp/xlator_type.h" #define ARGP_IPTABLES 1000 #define ARGP_NETFILTER 1001 #define ARGP_POOL6 '6' struct wargp_iname { bool set; char value[INAME_MAX_LEN]; }; #define WARGP_INAME(container, field, description) \ { \ .name = "instance name", \ .key = ARGP_KEY_ARG, \ .doc = "Name of the instance you want to " description, \ .offset = offsetof(container, field), \ .type = &wt_iname, \ } static int parse_iname(void *void_field, int key, char *str) { struct wargp_iname *field = void_field; int error; error = iname_validate(str, false); if (error) { pr_err(INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1); return error; } field->set = true; strcpy(field->value, str); return 0; } struct wargp_type wt_iname = { .argument = "", .parse = parse_iname, .candidates = "default", }; struct display_args { struct wargp_bool no_headers; struct wargp_bool csv; }; static struct wargp_option display_opts[] = { WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), { 0 }, }; static void print_table_divisor(void) { printf("+--------------------+-----------------+-----------+\n"); } static void print_entry_csv(struct instance_entry_usr *entry) { printf("%" PRIx64 ",%s,", (uint64_t)entry->ns, entry->iname); if (entry->xf & XF_NETFILTER) printf("netfilter"); else if (entry->xf & XF_IPTABLES) printf("iptables"); else printf("unknown"); printf("\n"); } static void print_entry_normal(struct instance_entry_usr *entry) { /* * 18 is "0x" plus 16 hexadecimal digits. * Why is it necessary? Because the table headers and stuff assume 18 * characters and I'm assuming that 32-bit machines would print smaller * pointers. */ printf("| %18" PRIx64 " | %15s | ", (uint64_t)entry->ns, entry->iname); if (entry->xf & XF_NETFILTER) printf("netfilter"); else if (entry->xf & XF_IPTABLES) printf(" iptables"); else printf(" unknown"); printf(" |\n"); } static struct jool_result print_entry(struct instance_entry_usr *instance, void *arg) { struct display_args *args = arg; if (args->csv.value) print_entry_csv(instance); else print_entry_normal(instance); return result_success(); } int handle_instance_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct jool_result result; if (iname) pr_warn("instance display ignores the instance name argument."); result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); if (!dargs.no_headers.value) { if (dargs.csv.value) { printf("Namespace,Name,Framework\n"); } else { print_table_divisor(); printf("| Namespace | Name | Framework |\n"); } } if (!dargs.csv.value) print_table_divisor(); result = instance_foreach(&sk, print_entry, &dargs); netlink_teardown(&sk); if (result.error) return pr_result(&result); if (!dargs.csv.value) print_table_divisor(); return 0; } void autocomplete_instance_display(void *args) { print_wargp_opts(display_opts); } struct add_args { struct wargp_iname iname; struct wargp_bool iptables; struct wargp_bool netfilter; struct wargp_prefix6 pool6; }; static struct wargp_option add_opts[] = { WARGP_INAME(struct add_args, iname, "add"), { .name = OPTNAME_IPTABLES, .key = ARGP_IPTABLES, .doc = "Sit the translator on top of iptables", .offset = offsetof(struct add_args, iptables), .type = &wt_bool, }, { .name = OPTNAME_NETFILTER, .key = ARGP_NETFILTER, .doc = "Sit the translator on top of Netfilter", .offset = offsetof(struct add_args, netfilter), .type = &wt_bool, }, { .name = "pool6", .key = ARGP_POOL6, .doc = "Prefix that will populate the IPv6 Address Pool", .offset = offsetof(struct add_args, pool6), .type = &wt_prefix6, }, { 0 }, }; int handle_instance_add(char *iname, int argc, char **argv, void *arg) { struct add_args aargs = { 0 }; struct jool_socket sk; xlator_framework xf; struct jool_result result; result.error = wargp_parse(add_opts, argc, argv, &aargs); if (result.error) return result.error; /* Validate instance name */ if (iname && aargs.iname.set && !STR_EQUAL(iname, aargs.iname.value)) { pr_err("You entered two different instance names. Please delete one of them."); return -EINVAL; } if (!iname && aargs.iname.set) iname = aargs.iname.value; /* Validate framework */ if (!aargs.netfilter.value && !aargs.iptables.value) { pr_err("Please specify instance framework. (--" OPTNAME_NETFILTER " or --" OPTNAME_IPTABLES ".)"); pr_err("(The Jool 3.5 behavior was --" OPTNAME_NETFILTER ".)"); return -EINVAL; } if (aargs.netfilter.value && aargs.iptables.value) { pr_err("The translator can only be hooked to one framework."); return -EINVAL; } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); xf = aargs.netfilter.value ? XF_NETFILTER : XF_IPTABLES; result = instance_add(&sk, xf, iname, aargs.pool6.set ? &aargs.pool6.prefix : NULL); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_instance_add(void *args) { print_wargp_opts(add_opts); } struct rm_args { struct wargp_iname iname; }; static struct wargp_option remove_opts[] = { WARGP_INAME(struct rm_args, iname, "remove"), { 0 }, }; int handle_instance_remove(char *iname, int argc, char **argv, void *arg) { struct rm_args rargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(remove_opts, argc, argv, &rargs); if (result.error) return result.error; if (iname && rargs.iname.set && !STR_EQUAL(iname, rargs.iname.value)) { pr_err("You entered two different instance names. Please delete one of them."); return -EINVAL; } if (!iname && rargs.iname.set) iname = rargs.iname.value; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = instance_rm(&sk, iname); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_instance_remove(void *args) { print_wargp_opts(remove_opts); } static struct wargp_option flush_opts[] = { { 0 }, }; int handle_instance_flush(char *iname, int argc, char **argv, void *arg) { struct jool_socket sk; struct jool_result result; if (iname) pr_warn("instance flush ignores the instance name argument."); result.error = wargp_parse(flush_opts, argc, argv, NULL); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = instance_flush(&sk); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_instance_flush(void *args) { print_wargp_opts(flush_opts); } static struct wargp_option status_opts[] = { { 0 }, }; int handle_instance_status(char *iname, int argc, char **argv, void *arg) { /* * Note: If you want to change the labels "Dead" and "Running", do * remember that this change will need to cascade to the init script. */ static char const *RUNNING_MSG = "Running\n"; static char const *DEAD_MSG = "Dead\n"; static char const *UNKNOWN_MSG = "Status unknown\n"; struct jool_socket sk; enum instance_hello_status status; struct jool_result result; result.error = wargp_parse(flush_opts, argc, argv, NULL); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error == -ESRCH) printf("%s", DEAD_MSG); if (result.error) return pr_result(&result); result = instance_hello(&sk, iname, &status); if (result.error) { printf("%s", UNKNOWN_MSG); goto end; } switch (status) { case IHS_ALIVE: printf("%s", RUNNING_MSG); break; case IHS_DEAD: printf("%s", DEAD_MSG); printf("(Instance '%s' does not exist.)\n", iname ? iname : INAME_DEFAULT); break; } end: netlink_teardown(&sk); return pr_result(&result); } void autocomplete_instance_status(void *args) { print_wargp_opts(status_opts); } jool-4.0.7/src/usr/argp/wargp/instance.h0000664000175000017500000000133113576225301015040 00000000000000#ifndef SRC_USR_ARGP_WARGP_INSTANCE_H_ #define SRC_USR_ARGP_WARGP_INSTANCE_H_ int handle_instance_display(char *iname, int argc, char **argv, void *arg); int handle_instance_add(char *iname, int argc, char **argv, void *arg); int handle_instance_remove(char *iname, int argc, char **argv, void *arg); int handle_instance_flush(char *iname, int argc, char **argv, void *arg); int handle_instance_status(char *iname, int argc, char **argv, void *arg); void autocomplete_instance_display(void *args); void autocomplete_instance_add(void *args); void autocomplete_instance_remove(void *args); void autocomplete_instance_flush(void *args); void autocomplete_instance_status(void *args); #endif /* SRC_USR_ARGP_WARGP_INSTANCE_H_ */ jool-4.0.7/src/usr/argp/wargp/stats.c0000664000175000017500000000377413576225301014402 00000000000000#include "stats.h" #include "log.h" #include "usr/nl/jool_socket.h" #include "usr/nl/stats.h" #include "usr/argp/log.h" #include "usr/argp/userspace-types.h" #include "usr/argp/wargp.h" #include "usr/argp/xlator_type.h" struct display_args { struct wargp_bool all; struct wargp_bool explain; struct wargp_bool no_headers; struct wargp_bool csv; }; static struct wargp_option display_opts[] = { { .name = "all", .key = 'a', .doc = "Do not filter out zero stats", .offset = offsetof(struct display_args, all), .type = &wt_bool, }, { .name = "explain", .key = 'e', .doc = "Print a description of what each stat means", .offset = offsetof(struct display_args, explain), .type = &wt_bool, }, WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), { 0 }, }; static struct jool_result handle_jstat(struct jstat const *stat, void *args) { struct display_args *dargs = args; if (!dargs->all.value && stat->value == 0) return result_success(); if (dargs->csv.value) { printf("%s,%llu", stat->meta.name, stat->value); if (dargs->explain.value) printf(",\"%s\"", stat->meta.doc); printf("\n"); } else { printf("%s: %llu\n", stat->meta.name, stat->value); if (dargs->explain.value) printf("%s\n\n", stat->meta.doc); } return result_success(); } int handle_stats_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); if (show_csv_header(dargs.no_headers.value, dargs.csv.value)) { printf("Stat,Value"); if (dargs.explain.value) printf(",Explanation"); printf("\n"); } result = stats_foreach(&sk, iname, handle_jstat, &dargs); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_stats_display(void *args) { print_wargp_opts(display_opts); } jool-4.0.7/src/usr/argp/wargp/stats.h0000664000175000017500000000035113576225301014373 00000000000000#ifndef SRC_USR_ARGP_WARGP_STATS_H_ #define SRC_USR_ARGP_WARGP_STATS_H_ int handle_stats_display(char *iname, int argc, char **argv, void *arg); void autocomplete_stats_display(void *args); #endif /* SRC_USR_ARGP_WARGP_STATS_H_ */ jool-4.0.7/src/usr/argp/wargp/address.c0000664000175000017500000001067413576225301014666 00000000000000#include "address.h" #include #include "common/types.h" #include "usr/util/str_utils.h" #include "usr/nl/jool_socket.h" #include "usr/nl/address.h" #include "usr/argp/log.h" #include "usr/argp/requirements.h" #include "usr/argp/wargp.h" #include "usr/argp/xlator_type.h" struct query_args { struct wargp_bool verbose; struct wargp_addr addr; }; static struct wargp_option query_opts[] = { { .name = "verbose", .key = 'v', .doc = "Show more information", .offset = offsetof(struct query_args, verbose), .type = &wt_bool, }, { .name = "Address", .key = ARGP_KEY_ARG, .doc = "IP Address you want to translate. Can be v6 or v4.", .offset = offsetof(struct query_args, addr), .type = &wt_addr, }, { 0 }, }; static void print_addr6(struct in6_addr *addr) { char str[INET6_ADDRSTRLEN]; inet_ntop(AF_INET6, addr, str, sizeof(str)); printf("%s", str); } static void print_prefix6(struct ipv6_prefix *prefix) { print_addr6(&prefix->addr); printf("/%u", prefix->len); } static void print_addr4(struct in_addr *addr) { printf("%s", inet_ntoa(*addr)); } static void print_prefix4(struct ipv4_prefix *prefix) { print_addr4(&prefix->addr); printf("/%u", prefix->len); } static void print_rfc6052_scheme(struct ipv6_prefix *prefix) { printf(" Scheme: RFC 6052 prefix\n"); printf(" Prefix: "); print_prefix6(prefix); printf("\n"); } static void print_eamt_scheme(struct eamt_entry *eam) { printf(" Scheme: EAMT\n"); printf(" EAM: "); print_prefix6(&eam->prefix6); printf(" | "); print_prefix4(&eam->prefix4); printf("\n"); } static void print4(struct in6_addr *src, struct result_addrxlat64 *dst, bool verbose) { if (!verbose) goto end; printf(" Query: "); print_addr6(src); printf("\n"); switch (dst->entry.method) { case AXM_RFC6052: print_rfc6052_scheme(&dst->entry.prefix6052); printf(" Operation: "); print_addr6(src); printf(" - "); print_prefix6(&dst->entry.prefix6052); printf(" = "); print_addr4(&dst->addr); printf("\n"); break; case AXM_EAMT: print_eamt_scheme(&dst->entry.eam); printf(" Operation: "); print_addr6(src); printf(" - "); print_prefix6(&dst->entry.eam.prefix6); printf(" + "); print_prefix4(&dst->entry.eam.prefix4); printf(" = "); print_addr4(&dst->addr); printf("\n"); break; case AXM_RFC6791: default: pr_err("Unknown translation method: %u", dst->entry.method); return; } printf(" Result: "); end: print_addr4(&dst->addr); printf("\n"); } static void print6(struct in_addr *src, struct result_addrxlat46 *dst, bool verbose) { if (!verbose) goto end; printf(" Query: "); print_addr4(src); printf("\n"); switch (dst->entry.method) { case AXM_RFC6052: print_rfc6052_scheme(&dst->entry.prefix6052); printf(" Operation: "); print_prefix6(&dst->entry.prefix6052); printf(" + "); print_addr4(src); printf(" = "); print_addr6(&dst->addr); printf("\n"); break; case AXM_EAMT: print_eamt_scheme(&dst->entry.eam); printf(" Operation: "); print_addr4(src); printf(" - "); print_prefix4(&dst->entry.eam.prefix4); printf(" + "); print_prefix6(&dst->entry.eam.prefix6); printf(" = "); print_addr6(&dst->addr); printf("\n"); break; case AXM_RFC6791: default: pr_err("Unknown translation method: %u", dst->entry.method); return; } printf(" Result: "); end: print_addr6(&dst->addr); printf("\n"); } int handle_address_query(char *iname, int argc, char **argv, void *arg) { struct query_args qargs = { 0 }; struct jool_socket sk; union { struct result_addrxlat64 v4; struct result_addrxlat46 v6; } response; struct jool_result result; result.error = wargp_parse(query_opts, argc, argv, &qargs); if (result.error) return result.error; if (!qargs.addr.proto) { struct requirement reqs[] = { { false, "an IP address" }, { 0 }, }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); switch (qargs.addr.proto) { case 6: result = address_query64(&sk, iname, &qargs.addr.addr.v6, &response.v4); if (result.error) break; print4(&qargs.addr.addr.v6, &response.v4, qargs.verbose.value); break; case 4: result = address_query46(&sk, iname, &qargs.addr.addr.v4, &response.v6); if (result.error) break; print6(&qargs.addr.addr.v4, &response.v6, qargs.verbose.value); break; } netlink_teardown(&sk); return pr_result(&result); } void autocomplete_address_query(void *args) { print_wargp_opts(query_opts); } jool-4.0.7/src/usr/argp/wargp/session.h0000664000175000017500000000036313576225301014723 00000000000000#ifndef SRC_USR_ARGP_WARGP_SESSION_H_ #define SRC_USR_ARGP_WARGP_SESSION_H_ int handle_session_display(char *iname, int argc, char **argv, void *arg); void autocomplete_session_display(void *args); #endif /* SRC_USR_ARGP_WARGP_SESSION_H_ */ jool-4.0.7/src/usr/argp/wargp/eamt.c0000664000175000017500000001301513576225301014157 00000000000000#include "eamt.h" #include "usr/argp/log.h" #include "usr/argp/requirements.h" #include "usr/argp/userspace-types.h" #include "usr/argp/wargp.h" #include "usr/argp/xlator_type.h" #include "usr/nl/eamt.h" #include "usr/nl/jool_socket.h" #include "usr/util/str_utils.h" struct display_args { struct wargp_bool no_headers; struct wargp_bool csv; }; static struct wargp_option display_opts[] = { WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), { 0 }, }; static void print_separator(void) { print_table_separator(0, 43, 18, 0); } static struct jool_result print_entry(struct eamt_entry *entry, void *args) { struct display_args *dargs = args; char ipv6_str[INET6_ADDRSTRLEN]; char *ipv4_str; inet_ntop(AF_INET6, &entry->prefix6.addr, ipv6_str, sizeof(ipv6_str)); ipv4_str = inet_ntoa(entry->prefix4.addr); if (dargs->csv.value) { printf("%s/%u,%s/%u\n", ipv6_str, entry->prefix6.len, ipv4_str, entry->prefix4.len); } else { printf("| %39s/%-3u | %15s/%-2u |\n", ipv6_str, entry->prefix6.len, ipv4_str, entry->prefix4.len); } return result_success(); } int handle_eamt_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); if (!dargs.no_headers.value) { static char const *const th1 = "IPv6 Prefix"; static char const *const th2 = "IPv4 Prefix"; if (dargs.csv.value) printf("%s,%s\n", th1, th2); else { print_separator(); printf("| %43s | %18s |\n", th1, th2); print_separator(); } } result = eamt_foreach(&sk, iname, print_entry, &dargs); netlink_teardown(&sk); if (result.error) return pr_result(&result); if (!dargs.csv.value) print_separator(); return 0; } void autocomplete_eamt_display(void *args) { print_wargp_opts(display_opts); } struct wargp_eamt_entry { bool prefix6_set; bool prefix4_set; struct eamt_entry value; }; struct add_args { struct wargp_eamt_entry entry; bool force; }; static int parse_eamt_column(void *void_field, int key, char *str) { struct wargp_eamt_entry *field = void_field; struct jool_result result; if (strchr(str, ':')) { field->prefix6_set = true; result = str_to_prefix6(str, &field->value.prefix6); return pr_result(&result); } if (strchr(str, '.')) { field->prefix4_set = true; result = str_to_prefix4(str, &field->value.prefix4); return pr_result(&result); } return ARGP_ERR_UNKNOWN; } struct wargp_type wt_prefixes = { .argument = " ", .parse = parse_eamt_column, }; static struct wargp_option add_opts[] = { WARGP_FORCE(struct add_args, force), { .name = "Prefixes", .key = ARGP_KEY_ARG, .doc = "Prefixes (or addresses) that will shape the new EAMT entry", .offset = offsetof(struct add_args, entry), .type = &wt_prefixes, }, { 0 }, }; int handle_eamt_add(char *iname, int argc, char **argv, void *arg) { struct add_args aargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(add_opts, argc, argv, &aargs); if (result.error) return result.error; if (!aargs.entry.prefix6_set || !aargs.entry.prefix4_set) { struct requirement reqs[] = { { aargs.entry.prefix6_set, "an IPv6 prefix" }, { aargs.entry.prefix4_set, "an IPv4 prefix" }, { 0 }, }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = eamt_add(&sk, iname, &aargs.entry.value.prefix6, &aargs.entry.value.prefix4, aargs.force); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_eamt_add(void *args) { print_wargp_opts(add_opts); } struct rm_args { struct wargp_eamt_entry entry; }; static struct wargp_option remove_opts[] = { { .name = "Prefixes", .key = ARGP_KEY_ARG, .doc = "Prefixes (or addresses) that shape the EAMT entry you want to remove", .offset = offsetof(struct rm_args, entry), .type = &wt_prefixes, }, { 0 }, }; int handle_eamt_remove(char *iname, int argc, char **argv, void *arg) { struct rm_args rargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(remove_opts, argc, argv, &rargs); if (result.error) return result.error; if (!rargs.entry.prefix6_set && !rargs.entry.prefix4_set) { struct requirement reqs[] = { { false, "a prefix" }, { 0 }, }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = eamt_rm(&sk, iname, rargs.entry.prefix6_set ? &rargs.entry.value.prefix6 : NULL, rargs.entry.prefix4_set ? &rargs.entry.value.prefix4 : NULL); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_eamt_remove(void *args) { print_wargp_opts(remove_opts); } int handle_eamt_flush(char *iname, int argc, char **argv, void *arg) { struct jool_socket sk; struct jool_result result; /* * We still call wargp_parse despite not having any arguments because * there's still --help and --usage that a clueless user might expect. */ result.error = wargp_parse(NULL, argc, argv, NULL); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = eamt_flush(&sk, iname); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_eamt_flush(void *args) { /* Nothing needed here. */ } jool-4.0.7/src/usr/argp/wargp/file.c0000664000175000017500000000244413576225301014154 00000000000000#include "file.h" #include #include "log.h" #include "requirements.h" #include "wargp.h" #include "usr/argp/xlator_type.h" #include "usr/nl/jool_socket.h" #include "usr/nl/json.h" struct update_args { struct wargp_string file_name; struct wargp_bool force; }; static struct wargp_option update_opts[] = { WARGP_FORCE(struct update_args, force), { .name = "File name", .key = ARGP_KEY_ARG, .doc = "Path to a JSON file containing Jool's configuration.", .offset = offsetof(struct update_args, file_name), .type = &wt_string, }, { 0 }, }; int handle_file_update(char *iname, int argc, char **argv, void *arg) { struct update_args uargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(update_opts, argc, argv, &uargs); if (result.error) return result.error; if (!uargs.file_name.value) { struct requirement reqs[] = { { false, "a file name" }, { 0 } }; return requirement_print(reqs); } result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = json_parse(&sk, xt_get(), iname, uargs.file_name.value, uargs.force.value); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_file_update(void *args) { /* Do nothing; default to autocomplete directory path */ } jool-4.0.7/src/usr/argp/wargp/bib.h0000664000175000017500000000067213576225301013777 00000000000000#ifndef SRC_USR_ARGP_WARGP_BIB_H_ #define SRC_USR_ARGP_WARGP_BIB_H_ int handle_bib_display(char *iname, int argc, char **argv, void *arg); int handle_bib_add(char *iname, int argc, char **argv, void *arg); int handle_bib_remove(char *iname, int argc, char **argv, void *arg); void autocomplete_bib_display(void *args); void autocomplete_bib_add(void *args); void autocomplete_bib_remove(void *args); #endif /* SRC_USR_ARGP_WARGP_BIB_H_ */ jool-4.0.7/src/usr/argp/wargp/pool4.c0000664000175000017500000002366013576225301014275 00000000000000#include "pool4.h" #include "log.h" #include "usr/util/str_utils.h" #include "usr/nl/jool_socket.h" #include "usr/nl/pool4.h" #include "usr/argp/log.h" #include "usr/argp/requirements.h" #include "usr/argp/userspace-types.h" #include "usr/argp/wargp.h" #include "usr/argp/xlator_type.h" #define ARGP_MARK 3000 #define ARGP_MAX_ITERATIONS 3001 #define ARGP_QUICK 'q' struct display_args { struct wargp_l4proto proto; struct wargp_bool no_headers; struct wargp_bool csv; struct { bool initialized; __u32 mark; __u8 proto; } last; unsigned int count; }; static struct wargp_option display_opts[] = { WARGP_TCP(struct display_args, proto, "Print the TCP table (default)"), WARGP_UDP(struct display_args, proto, "Print the UDP table"), WARGP_ICMP(struct display_args, proto, "Print the ICMP table"), WARGP_NO_HEADERS(struct display_args, no_headers), WARGP_CSV(struct display_args, csv), { 0 }, }; static void print_separator(void) { print_table_separator(0, 10, 5, 18, 15, 11, 0); } static void display_sample_csv(struct pool4_sample *sample, struct display_args *args) { printf("%u,%s,%s,%u,%u,", sample->mark, l4proto_to_string(sample->proto), inet_ntoa(sample->range.addr), sample->range.ports.min, sample->range.ports.max); if (sample->iterations_flags & ITERATIONS_INFINITE) { printf("infinite,"); } else { printf("%u,", sample->iterations); } printf("%u\n", !(sample->iterations_flags & ITERATIONS_AUTO)); } static bool print_common_values(struct pool4_sample *sample, struct display_args *args) { if (!args->last.initialized) return true; return sample->mark != args->last.mark || sample->proto != args->last.proto; } static void display_sample_normal(struct pool4_sample *sample, struct display_args *args) { if (print_common_values(sample, args)) { print_separator(); printf("| %10u | %5s | ", sample->mark, l4proto_to_string(sample->proto)); if (sample->iterations_flags & ITERATIONS_INFINITE) printf("%10s", "Infinite"); else printf("%10u", sample->iterations); printf(" (%5s) | %15s | %5u-%5u |\n", (sample->iterations_flags & ITERATIONS_AUTO) ? "auto" : "fixed", inet_ntoa(sample->range.addr), sample->range.ports.min, sample->range.ports.max); } else { printf("| %10s | %5s | %10s %5s | %15s | %5u-%5u |\n", "", "", "", "", inet_ntoa(sample->range.addr), sample->range.ports.min, sample->range.ports.max); } args->last.initialized = true; args->last.mark = sample->mark; args->last.proto = sample->proto; } static struct jool_result handle_display_response(struct pool4_sample *sample, void *args) { struct display_args *dargs = args; if (dargs->csv.value) display_sample_csv(sample, args); else display_sample_normal(sample, args); dargs->count++; return result_success(); } int handle_pool4_display(char *iname, int argc, char **argv, void *arg) { struct display_args dargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(display_opts, argc, argv, &dargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); if (!dargs.no_headers.value) { if (dargs.csv.value) printf("Mark,Protocol,Address,Min port,Max port,Iterations,Iterations fixed\n"); else { print_separator(); printf("| %10s | %5s | %18s | %15s | %11s |\n", "Mark", "Proto", "Max iterations", "Address", "Ports"); } } dargs.count = 0; result = pool4_foreach(&sk, iname, dargs.proto.proto, handle_display_response, &dargs); netlink_teardown(&sk); if (result.error) return pr_result(&result); if (!dargs.csv.value) { if (dargs.count == 0) print_separator(); /* Header border */ print_separator(); /* Table border */ } return 0; } void autocomplete_pool4_display(void *args) { print_wargp_opts(display_opts); } struct parsing_entry { bool prefix4_set; bool range_set; struct pool4_entry_usr meat; }; struct add_args { struct parsing_entry entry; struct wargp_l4proto proto; bool force; }; static int parse_max_iterations(void *void_field, int key, char *str) { struct pool4_entry_usr *meat = void_field; struct jool_result result; meat->flags = ITERATIONS_SET; if (STR_EQUAL(str, "auto")) { meat->flags |= ITERATIONS_AUTO; return 0; } if (STR_EQUAL(str, "infinity")) { meat->flags |= ITERATIONS_INFINITE; return 0; } result = str_to_u32(str, &meat->iterations, 0, MAX_U32); return pr_result(&result); } struct wargp_type wt_max_iterations = { .argument = "(|auto|infinity)", .parse = parse_max_iterations, .candidates = "auto infinity", }; static int parse_pool4_entry(void *void_field, int key, char *str) { struct add_args *field = void_field; struct jool_result result; if (strchr(str, '.')) { /* Token is an IPv4 thingy. */ field->entry.prefix4_set = true; result = str_to_prefix4(str, &field->entry.meat.range.prefix); return pr_result(&result); } /* Token is a port range. */ field->entry.range_set = true; result = str_to_port_range(str, &field->entry.meat.range.ports); return pr_result(&result); } struct wargp_type wt_pool4_entry = { .argument = " ", .parse = parse_pool4_entry, }; static struct wargp_option add_opts[] = { WARGP_TCP(struct add_args, proto, "Add the entry to the TCP table"), WARGP_UDP(struct add_args, proto, "Add the entry to the UDP table"), WARGP_ICMP(struct add_args, proto, "Add the entry to the ICMP table"), { .name = "mark", .key = ARGP_MARK, .doc = "In the IPv6 to IPv4 direction, only packets carrying this mark will match this pool4 entry", .offset = offsetof(struct add_args, entry.meat.mark), .type = &wt_u32, }, { .name = "max-iterations", .key = ARGP_MAX_ITERATIONS, .doc = "Maximum number of times the transport address lookup algorithm should be allowed to iterate\n" "(This algorithm is used to find an available transport address to create a BIB entry with)", .offset = offsetof(struct add_args, entry.meat), .type = &wt_max_iterations, }, WARGP_FORCE(struct add_args, force), { .name = "pool4 entry", .key = ARGP_KEY_ARG, .doc = "Range of transport addresses that should be reserved for translation", .offset = offsetof(struct add_args, entry), .type = &wt_pool4_entry, }, { 0 }, }; int handle_pool4_add(char *iname, int argc, char **argv, void *arg) { struct add_args aargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(add_opts, argc, argv, &aargs); if (result.error) return result.error; if (!aargs.entry.prefix4_set || !aargs.entry.range_set || !aargs.proto.set) { struct requirement reqs[] = { { aargs.entry.prefix4_set, "an IPv4 prefix or address" }, { aargs.entry.range_set, "a port (or ICMP id) range" }, { aargs.proto.set, "a protocol (--tcp, --udp or --icmp)" }, { 0 }, }; return requirement_print(reqs); } if (aargs.entry.meat.range.prefix.len < 24 && !aargs.force) { pr_err("Warning: You're adding lots of addresses, which might defeat the whole point of NAT64 over SIIT."); pr_err("Will cancel the operation. Use --force to override this."); return -E2BIG; } aargs.entry.meat.proto = aargs.proto.proto; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = pool4_add(&sk, iname, &aargs.entry.meat); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_pool4_add(void *args) { print_wargp_opts(add_opts); } struct rm_args { struct parsing_entry entry; struct wargp_l4proto proto; bool quick; }; static struct wargp_option remove_opts[] = { WARGP_TCP(struct add_args, proto, "Remove the entry from the TCP table (default)"), WARGP_UDP(struct add_args, proto, "Remove the entry from the UDP table"), WARGP_ICMP(struct add_args, proto, "Remove the entry from the ICMP table"), { .name = "mark", .key = ARGP_MARK, .doc = "Only remove entries that match this mark", .offset = offsetof(struct rm_args, entry.meat.mark), .type = &wt_u32, }, { .name = "quick", .key = ARGP_QUICK, .doc = "Do not cascade removal to BIB entries", .offset = offsetof(struct rm_args, quick), .type = &wt_bool, }, { .name = "pool4 entry", .key = ARGP_KEY_ARG, .doc = "Range of transport addresses that should no longer be reserved for translation", .offset = offsetof(struct rm_args, entry), .type = &wt_pool4_entry, }, { 0 }, }; int handle_pool4_remove(char *iname, int argc, char **argv, void *arg) { struct rm_args rargs = { 0 }; struct jool_socket sk; struct jool_result result; /* Delete all ports by default */ rargs.entry.meat.range.ports.max = 65535; result.error = wargp_parse(remove_opts, argc, argv, &rargs); if (result.error) return result.error; if (!rargs.entry.prefix4_set) { struct requirement reqs[] = { { rargs.entry.prefix4_set, "an IPv4 prefix or address" }, { 0 }, }; return requirement_print(reqs); } rargs.entry.meat.proto = rargs.proto.proto; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = pool4_rm(&sk, iname, &rargs.entry.meat, rargs.quick); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_pool4_remove(void *args) { print_wargp_opts(remove_opts); } struct flush_args { bool quick; }; static struct wargp_option flush_opts[] = { { .name = "quick", .key = ARGP_QUICK, .doc = "Do not cascade removal to BIB entries", .offset = offsetof(struct flush_args, quick), .type = &wt_bool, }, { 0 }, }; int handle_pool4_flush(char *iname, int argc, char **argv, void *arg) { struct flush_args fargs = { 0 }; struct jool_socket sk; struct jool_result result; result.error = wargp_parse(flush_opts, argc, argv, &fargs); if (result.error) return result.error; result = netlink_setup(&sk, xt_get()); if (result.error) return pr_result(&result); result = pool4_flush(&sk, iname, fargs.quick); netlink_teardown(&sk); return pr_result(&result); } void autocomplete_pool4_flush(void *args) { print_wargp_opts(flush_opts); } jool-4.0.7/src/usr/argp/xlator_type.h0000664000175000017500000000030613576225301014467 00000000000000#ifndef SRC_USR_ARGP_XLATOR_TYPE_H_ #define SRC_USR_ARGP_XLATOR_TYPE_H_ #include "common/config.h" void xt_set(xlator_type xt); xlator_type xt_get(void); #endif /* SRC_USR_ARGP_XLATOR_TYPE_H_ */ jool-4.0.7/src/usr/argp/dns.c0000664000175000017500000000406313576225301012700 00000000000000#include "dns.h" #include #include #include #include "log.h" void print_addr6(struct ipv6_transport_addr *addr6, bool numeric, char *separator, __u8 l4_proto) { char hostname[NI_MAXHOST], service[NI_MAXSERV]; char hostaddr[INET6_ADDRSTRLEN]; struct sockaddr_in6 sa6; int err; if (numeric) goto print_numeric; memset(&sa6, 0, sizeof(struct sockaddr_in6)); sa6.sin6_family = AF_INET6; sa6.sin6_port = htons(addr6->l4); sa6.sin6_addr = addr6->l3; err = getnameinfo((const struct sockaddr*) &sa6, sizeof(sa6), hostname, sizeof(hostname), service, sizeof(service), 0); if (err != 0) { pr_err("getnameinfo failed: %s", gai_strerror(err)); goto print_numeric; } /* * Verification because ICMP doesn't use numeric ports, so it makes no * sense to have a translation of the "ICMP id". */ if (l4_proto != L4PROTO_ICMP) printf("%s%s%s", hostname, separator, service); else printf("%s%s%u", hostname, separator, addr6->l4); return; print_numeric: inet_ntop(AF_INET6, &addr6->l3, hostaddr, sizeof(hostaddr)); printf("%s%s%u", hostaddr, separator, addr6->l4); } void print_addr4(struct ipv4_transport_addr *addr4, bool numeric, char *separator, __u8 l4_proto) { char hostname[NI_MAXHOST], service[NI_MAXSERV]; char *hostaddr; struct sockaddr_in sa; int err; if (numeric) goto print_numeric; memset(&sa, 0, sizeof(struct sockaddr_in)); sa.sin_family = AF_INET; sa.sin_port = htons(addr4->l4); sa.sin_addr = addr4->l3; err = getnameinfo((const struct sockaddr*) &sa, sizeof(sa), hostname, sizeof(hostname), service, sizeof(service), 0); if (err != 0) { pr_err("getnameinfo failed: %s", gai_strerror(err)); goto print_numeric; } /* * Verification because ICMP doesn't use numeric ports, so it makes no * sense to have a translation of the "ICMP id". */ if (l4_proto != L4PROTO_ICMP) printf("%s%s%s", hostname, separator, service); else printf("%s%s%u", hostname, separator, addr4->l4); return; print_numeric: hostaddr = inet_ntoa(addr4->l3); printf("%s%s%u", hostaddr, separator, addr4->l4); } jool-4.0.7/src/usr/argp/main.h0000664000175000017500000000020413576225301013036 00000000000000#ifndef SRC_USR_ARGP_MAIN_H_ #define SRC_USR_ARGP_MAIN_H_ int jool_main(int argc, char **argv); #endif /* SRC_USR_ARGP_MAIN_H_ */ jool-4.0.7/src/usr/argp/userspace-types.c0000664000175000017500000000174513576225301015254 00000000000000#include "userspace-types.h" #include #include bool show_csv_header(bool no_headers, bool csv) { return !no_headers && csv; } bool show_footer(bool no_headers, bool csv) { return !no_headers && !csv; } /** * Prints something like this: "+---------+--------+". The arguments are the * number of dashes (minus 2, intended for padding) for every column. * * Because of stupid C quirks, you have to surround the arguments with zeroes. * For example, to print "+-----+----+---+", you have to call the function like * this: `print_table_separator(0, 3, 2, 1, 0);`. Just pretend that they are * the table borders or whatever. */ void print_table_separator(int junk, ...) { unsigned int cursor; unsigned int i; va_list args; va_start(args, junk); printf("+"); cursor = va_arg(args, unsigned int); while (cursor != 0) { for (i = 0; i < cursor + 2; i++) printf("-"); printf("+"); cursor = va_arg(args, unsigned int); } va_end(args); printf("\n"); } jool-4.0.7/src/usr/argp/main.c0000664000175000017500000003266413576225301013050 00000000000000/** * Main for the `jool` and `jool_siit` userspace applications. * Handles the first arguments (often "mode" and "operation") and multiplexes * the rest of the work to the corresponding .c's. */ #include #include #include #include #include #include "command.h" #include "log.h" #include "common/config.h" #include "common/xlat.h" #include "usr/util/str_utils.h" #include "usr/nl/json.h" #include "usr/argp/xlator_type.h" #include "wargp/address.h" #include "wargp/bib.h" #include "wargp/blacklist4.h" #include "wargp/eamt.h" #include "wargp/file.h" #include "wargp/global.h" #include "wargp/instance.h" #include "wargp/pool4.h" #include "wargp/session.h" #include "wargp/stats.h" #define DISPLAY "display" #define ADD "add" #define UPDATE "update" #define REMOVE "remove" #define FLUSH "flush" static int handle_autocomplete(char *junk, int argc, char **argv, void *arg); static struct cmd_option instance_ops[] = { { .label = DISPLAY, .xt = XT_ANY, .handler = handle_instance_display, .handle_autocomplete = autocomplete_instance_display, }, { .label = ADD, .xt = XT_ANY, .handler = handle_instance_add, .handle_autocomplete = autocomplete_instance_add, }, { .label = REMOVE, .xt = XT_ANY, .handler = handle_instance_remove, .handle_autocomplete = autocomplete_instance_remove, }, { .label = FLUSH, .xt = XT_ANY, .handler = handle_instance_flush, .handle_autocomplete = autocomplete_instance_flush, }, { .label = "status", .xt = XT_ANY, .handler = handle_instance_status, .handle_autocomplete = autocomplete_instance_status, }, { 0 }, }; static struct cmd_option stats_ops[] = { { .label = DISPLAY, .xt = XT_ANY, .handler = handle_stats_display, .handle_autocomplete = autocomplete_stats_display, }, { 0 }, }; static struct cmd_option address_ops[] = { { .label = "query", .xt = XT_SIIT, .handler = handle_address_query, .handle_autocomplete = autocomplete_address_query, }, { 0 }, }; static struct cmd_option global_ops[] = { { .label = DISPLAY, .xt = XT_ANY, .handler = handle_global_display, .handle_autocomplete = autocomplete_global_display, }, { .label = UPDATE, .xt = XT_ANY, .child_builder = build_global_update_children, }, { 0 }, }; static struct cmd_option eamt_ops[] = { { .label = DISPLAY, .xt = XT_SIIT, .handler = handle_eamt_display, .handle_autocomplete = autocomplete_eamt_display, }, { .label = ADD, .xt = XT_SIIT, .handler = handle_eamt_add, .handle_autocomplete = autocomplete_eamt_add, }, { .label = REMOVE, .xt = XT_SIIT, .handler = handle_eamt_remove, .handle_autocomplete = autocomplete_eamt_remove, }, { .label = FLUSH, .xt = XT_SIIT, .handler = handle_eamt_flush, .handle_autocomplete = autocomplete_eamt_flush, }, { 0 }, }; static struct cmd_option blacklist4_ops[] = { { .label = DISPLAY, .xt = XT_SIIT, .handler = handle_blacklist4_display, .handle_autocomplete = autocomplete_blacklist4_display, }, { .label = ADD, .xt = XT_SIIT, .handler = handle_blacklist4_add, .handle_autocomplete = autocomplete_blacklist4_add, }, { .label = REMOVE, .xt = XT_SIIT, .handler = handle_blacklist4_remove, .handle_autocomplete = autocomplete_blacklist4_remove, }, { .label = FLUSH, .xt = XT_SIIT, .handler = handle_blacklist4_flush, .handle_autocomplete = autocomplete_blacklist4_flush, }, { 0 }, }; struct cmd_option pool4_ops[] = { { .label = DISPLAY, .xt = XT_NAT64, .handler = handle_pool4_display, .handle_autocomplete = autocomplete_pool4_display, }, { .label = ADD, .xt = XT_NAT64, .handler = handle_pool4_add, .handle_autocomplete = autocomplete_pool4_add, }, { .label = REMOVE, .xt = XT_NAT64, .handler = handle_pool4_remove, .handle_autocomplete = autocomplete_pool4_remove, }, { .label = FLUSH, .xt = XT_NAT64, .handler = handle_pool4_flush, .handle_autocomplete = autocomplete_pool4_flush, }, { 0 }, }; static struct cmd_option bib_ops[] = { { .label = DISPLAY, .xt = XT_NAT64, .handler = handle_bib_display, .handle_autocomplete = autocomplete_bib_display, }, { .label = ADD, .xt = XT_NAT64, .handler = handle_bib_add, .handle_autocomplete = autocomplete_bib_add, }, { .label = REMOVE, .xt = XT_NAT64, .handler = handle_bib_remove, .handle_autocomplete = autocomplete_bib_remove, }, { 0 }, }; static struct cmd_option session_ops[] = { { .label = DISPLAY, .xt = XT_NAT64, .handler = handle_session_display, .handle_autocomplete = autocomplete_session_display, }, { 0 }, }; static struct cmd_option file_ops[] = { { .label = "handle", .xt = XT_ANY, .handler = handle_file_update, .handle_autocomplete = autocomplete_file_update, }, { 0 }, }; struct cmd_option tree[] = { { .label = "instance", .xt = XT_ANY, .children = instance_ops, }, { .label = "stats", .xt = XT_ANY, .children = stats_ops, }, { .label = "address", .xt = XT_SIIT, .children = address_ops, }, { .label = "global", .xt = XT_ANY, .children = global_ops, }, { .label = "eamt", .xt = XT_SIIT, .children = eamt_ops, }, { .label = "blacklist4", .xt = XT_SIIT, .children = blacklist4_ops, }, { .label = "pool4", .xt = XT_NAT64, .children = pool4_ops, }, { .label = "bib", .xt = XT_NAT64, .children = bib_ops, }, { .label = "session", .xt = XT_NAT64, .children = session_ops, }, { .label = "file", .xt = XT_ANY, .children = file_ops, }, { /* See files jool.bash and jool_siit.bash. */ .label = "autocomplete", .xt = XT_ANY, .hidden = true, .handler = handle_autocomplete, }, { 0 }, }; static int init_cmd_option_array(struct cmd_option *layer) { struct cmd_option *node; int error; if (!layer) return 0; for (node = layer; node->label; node++) { if (node->child_builder) { node->children = node->child_builder(); if (!node->children) return -ENOMEM; } error = init_cmd_option_array(node->children); if (error) return error; } return 0; } static void teardown_cmd_option_array(struct cmd_option *layer) { struct cmd_option *node; if (!layer) return; for (node = layer; node->label; node++) { teardown_cmd_option_array(node->children); if (node->child_builder) free(node->children); } } /** * Returns the nodes from the @options array whose label start with @prefix. * (They will be chained via result->next.) * * Special cases: * - If there is a node whose entire label is @prefix, it returns that one only. * - If a node is hidden, it will have to match perfectly. */ static struct cmd_option *find_matches(struct cmd_option *options, char *prefix) { struct cmd_option *option; struct cmd_option *first = NULL; struct cmd_option *last = NULL; if (!options) return NULL; for (option = options; option->label; option++) { if (!(xt_get() & option->xt)) continue; if (option->hidden) { if (strcmp(option->label, prefix) == 0) return option; continue; } if (memcmp(option->label, prefix, strlen(prefix)) == 0) { /* * The labels never overlap like this so this isn't * really useful right now. * I'm including this only for the sake of correctness. */ if (strcmp(option->label, prefix) == 0) return option; if (first) last->next = option; else first = option; last = option; last->next = NULL; } } return first; } static int unexpected_token(struct cmd_option *nodes, char *token) { fprintf(stderr, "Unexpected token: '%s'\n", token); fprintf(stderr, "Available options: "); for (; nodes->label; nodes++) { if (!cmdopt_is_hidden(nodes)) fprintf(stderr, "%s ", nodes->label); } fprintf(stderr, "\n"); return -EINVAL; } static int ambiguous_token(struct cmd_option *nodes, char *token) { fprintf(stderr, "Ambiguous token: '%s'\n", token); fprintf(stderr, "Available options: "); for (; nodes; nodes = nodes->next) { if (!cmdopt_is_hidden(nodes)) fprintf(stderr, "%s ", nodes->label); } fprintf(stderr, "\n"); return -EINVAL; } static int more_args_expected(struct cmd_option *nodes) { fprintf(stderr, "More arguments expected.\n"); fprintf(stderr, "Possible follow-ups: "); for (; nodes->label; nodes++) { if (!cmdopt_is_hidden(nodes)) fprintf(stderr, "%s ", nodes->label); } fprintf(stderr, "\n"); return -EINVAL; } static int __handle(char *iname, int argc, char **argv) { struct cmd_option *nodes = &tree[0]; struct cmd_option *node = NULL; int i; if (argc == 0) return more_args_expected(nodes); for (i = 0; i < argc; i++) { node = find_matches(nodes, argv[i]); if (!node) return unexpected_token(nodes, argv[i]); if (node->next) return ambiguous_token(node, argv[i]); if (node->handler) { return node->handler(iname, argc - i, &argv[i], node->args); } nodes = node->children; } return more_args_expected(node->children); } static int handle(char *iname, int argc, char **argv) { int error; error = init_cmd_option_array(tree); if (error) return error; error = __handle(iname, argc, argv); teardown_cmd_option_array(tree); return error; } /** * Never fails because there's no point yet. */ static int handle_autocomplete(char *junk, int argc, char **argv, void *arg) { struct cmd_option *node = &tree[0]; long int depth; int i; /* * Case 1: Suppose the user typed `jool global update m`: * Bash will query `jool autocomplete 3 global update m`. (`3` being the * index of the incomplete token in the original command.) * At this point, argc = 5, argv = { "autocomplete", "3", "global", * "update", "m" }. * * Case 2: Suppose the command is `jool global update `: * Bash will query `jool autocomplete 3 global update`. * argc = 4, argv = { "autocomplete", "3", "global", "update" }. * * Case 3: Suppose the command is `jool `: * Bash will query `jool autocomplete 1`. * argc = 2, argv = { "autocomplete", "1" }. */ if (argc < 2) return 0; errno = 0; depth = strtol(argv[1], NULL, 10) - 1; if (errno) return 0; argc -= 2; argv += 2; /* * depth can be argc when the user is tabbing the next token, * without having actually typed any characters. * (Eg. `jool global update `) */ if (depth != (argc - 1) && depth != argc) return 0; /* * At this point, * Case 1: argc = 3, argv = { "global", "update", "m" }, depth = 2. * Case 2: argc = 2, argv = { "global", "update" }, depth = 2. * Case 3: argc = 0, argv = {}, depth = 0. */ /* * Traverse the intermediate keywords. * (Cases 1 & 2: "global" and "update", Case 3: None.) */ for (i = 0; i < depth; i++) { node = find_matches(node, argv[i]); if (!node) return 0; /* Prefix does not exist. */ if (node->next) return 0; /* Ambiguous prefix. */ if (!node->children) { node->handle_autocomplete(node->args); return 0; } node = node->children; } /* Finally print the candidates for the last token. */ node = find_matches(node, (i < argc) ? argv[i] : ""); for (; node; node = node->next) printf("%s ", node->label); return 0; } static const struct option OPTIONS[] = { { .name = "help", .has_arg = no_argument, .val = '?', }, { .name = "version", .has_arg = no_argument, .val = 'V', }, { .name = "usage", .has_arg = no_argument, .val = 1000, }, { .name = "instance", .has_arg = required_argument, .val = 'i', }, { .name = "file", .has_arg = required_argument, .val = 'f', }, { 0 }, }; static int show_usage(char *program_name) { printf("%s (\n", program_name); printf(" [] []\n"); printf(" | [-h|--help]\n"); printf(" | (-V|--version)\n"); printf(" | --usage\n"); printf(")\n"); return 0; } static int show_help(char *program_name) { struct cmd_option *mode; struct cmd_option *op; printf("Usage\n"); printf("=====\n"); show_usage(program_name); printf("\n"); printf("\n"); printf("=======\n"); printf("Either (--instance|-i) or (--file|-f) .\n"); printf("- is the instance name\n"); printf("- is a path to a JSON file that contains the instance name\n"); printf("\n"); printf("s -> s\n"); printf("=======================\n"); for (mode = tree; mode && mode->label; mode++) { if (cmdopt_is_hidden(mode)) continue; printf("- %s -> ", mode->label); for (op = mode->children; op && op->label; op++) { if (!cmdopt_is_hidden(op)) printf("%s ", op->label); } printf("\n"); } printf("\n"); printf("\n"); printf("======\n"); printf("Depends on and . Normally, see respective --help for details.\n"); printf("(Example: %s instance add --help)\n", program_name); printf("\n"); printf("Report bugs to %s.", argp_program_bug_address); printf("\n"); return 0; } static int show_version(void) { printf(JOOL_VERSION_STR "\n"); return 0; } int jool_main(int argc, char **argv) { int opt; char *iname = NULL; struct jool_result result; if (argc == 1) return show_help(argv[0]); while ((opt = getopt_long(argc, argv, "+?Vi:f:", OPTIONS, NULL)) != -1) { switch (opt) { case '?': return show_help(argv[0]); case 'V': return show_version(); case 1000: return show_usage(argv[0]); case 'i': iname = optarg; break; case 'f': result = json_get_iname(optarg, &iname); if (result.error) return pr_result(&result); break; } } return handle(iname, argc - optind, argv + optind); } jool-4.0.7/src/usr/INSTALL0000664000175000017500000003660013507462273012057 00000000000000Installation Instructions ************************* Copyright (C) 1994-1996, 1999-2002, 2004-2011 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without warranty of any kind. Basic Installation ================== Briefly, the shell commands `./configure; make; make install' should configure, build, and install this package. The following more-detailed instructions are generic; see the `README' file for instructions specific to this package. Some packages provide this `INSTALL' file but do not implement all of the features documented below. The lack of an optional feature in a given package is not necessarily a bug. More recommendations for GNU packages can be found in *note Makefile Conventions: (standards)Makefile Conventions. The `configure' shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a `Makefile' in each directory of the package. 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Until the bug is fixed you can use this workaround: CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash `configure' Invocation ====================== `configure' recognizes the following options to control how it operates. `--help' `-h' Print a summary of all of the options to `configure', and exit. `--help=short' `--help=recursive' Print a summary of the options unique to this package's `configure', and exit. The `short' variant lists options used only in the top level, while the `recursive' variant lists options also present in any nested packages. `--version' `-V' Print the version of Autoconf used to generate the `configure' script, and exit. `--cache-file=FILE' Enable the cache: use and save the results of the tests in FILE, traditionally `config.cache'. FILE defaults to `/dev/null' to disable caching. `--config-cache' `-C' Alias for `--cache-file=config.cache'. `--quiet' `--silent' `-q' Do not print messages saying which checks are being made. To suppress all normal output, redirect it to `/dev/null' (any error messages will still be shown). `--srcdir=DIR' Look for the package's source code in directory DIR. Usually `configure' can determine that directory automatically. `--prefix=DIR' Use DIR as the installation prefix. *note Installation Names:: for more details, including other options available for fine-tuning the installation locations. `--no-create' `-n' Run the configure checks, but stop before creating any output files. `configure' also accepts some other, not widely useful, options. Run `configure --help' for more details. jool-4.0.7/src/usr/nl/0000775000175000017500000000000013576247347011523 500000000000000jool-4.0.7/src/usr/nl/global.c0000664000175000017500000000322313576225301013031 00000000000000#include "global.h" #include #include "jool_socket.h" static struct jool_result global_query_response(struct jool_response *response, void *args) { struct globals *config = response->payload; if (response->payload_len != sizeof(*config)) { return result_from_error( -EINVAL, "Jool's response has a bogus length. (expected %zu, got %zu).", sizeof(*config), response->payload_len ); } memcpy(args, config, sizeof(struct globals)); return result_success(); } struct jool_result global_query(struct jool_socket *sk, char *iname, struct globals *out) { struct request_hdr request; init_request_hdr(&request, sk->xt, MODE_GLOBAL, OP_FOREACH, false); return netlink_request(sk, iname, &request, sizeof(request), global_query_response, out); } struct jool_result global_update(struct jool_socket *sk, char *iname, struct global_field *field, void *value, bool force) { struct request_hdr *hdr; struct global_value *meta; void *payload; size_t value_size; size_t total_size; struct jool_result result; /* * TODO (warning) BTW: We're not validating @field. * Update: kernelspace has validation functions. */ value_size = field->type->size; total_size = sizeof(struct request_hdr) + sizeof(struct global_value) + value_size; hdr = malloc(total_size); if (!hdr) return result_from_enomem(); meta = (struct global_value *)(hdr + 1); payload = meta + 1; init_request_hdr(hdr, sk->xt, MODE_GLOBAL, OP_UPDATE, force); meta->type = global_field_index(field); meta->len = value_size; memcpy(payload, value, value_size); result = netlink_request(sk, iname, hdr, total_size, NULL, NULL); free(hdr); return result; } jool-4.0.7/src/usr/nl/joold.h0000664000175000017500000000040213576225301012701 00000000000000#ifndef SRC_USR_NL_JOOLD_H_ #define SRC_USR_NL_JOOLD_H_ #include "jool_socket.h" struct jool_result joold_advertise(struct jool_socket *sk, char *iname); struct jool_result joold_test(struct jool_socket *sk, char *iname); #endif /* SRC_USR_NL_JOOLD_H_ */ jool-4.0.7/src/usr/nl/address.h0000664000175000017500000000063513576225301013227 00000000000000#ifndef SRC_USR_NL_ADDRESS_H_ #define SRC_USR_NL_ADDRESS_H_ #include "common/config.h" #include "jool_socket.h" struct jool_result address_query64(struct jool_socket *sk, char *iname, struct in6_addr *addr, struct result_addrxlat64 *result); struct jool_result address_query46(struct jool_socket *sk, char *iname, struct in_addr *addr, struct result_addrxlat46 *result); #endif /* SRC_USR_NL_ADDRESS_H_ */ jool-4.0.7/src/usr/nl/global.h0000664000175000017500000000056113576225301013040 00000000000000#ifndef SRC_USR_NL_GLOBAL_H_ #define SRC_USR_NL_GLOBAL_H_ #include "common/globals.h" #include "jool_socket.h" struct jool_result global_query(struct jool_socket *sk, char *iname, struct globals *out); struct jool_result global_update(struct jool_socket *sk, char *iname, struct global_field *field, void *value, bool force); #endif /* SRC_USR_NL_GLOBAL_H_ */ jool-4.0.7/src/usr/nl/wrapper-types.c0000664000175000017500000000003213576225301014406 00000000000000#include "common/types.c" jool-4.0.7/src/usr/nl/wrapper-globals.c0000664000175000017500000000003413576225301014667 00000000000000#include "common/globals.c" jool-4.0.7/src/usr/nl/buffer.h0000664000175000017500000000070513576225301013051 00000000000000#ifndef SRC_USR_NL_BUFFER_H_ #define SRC_USR_NL_BUFFER_H_ #include /* size_t */ #include "jool_socket.h" struct nl_buffer; struct nl_buffer *nlbuffer_alloc(struct jool_socket *sk, char *iname); void nlbuffer_destroy(struct nl_buffer *buffer); struct jool_result nlbuffer_write(struct nl_buffer *buffer, void *payload, size_t payload_len); struct jool_result nlbuffer_flush(struct nl_buffer *buffer); #endif /* SRC_USR_NL_BUFFER_H_ */ jool-4.0.7/src/usr/nl/pool4.h0000664000175000017500000000121513576225301012632 00000000000000#ifndef SRC_USR_NL_POOL4_H_ #define SRC_USR_NL_POOL4_H_ #include "common/config.h" #include "jool_socket.h" typedef struct jool_result (*pool4_foreach_cb)(struct pool4_sample *sample, void *args); struct jool_result pool4_foreach(struct jool_socket *sk, char *iname, l4_protocol proto, pool4_foreach_cb cb, void *args); struct jool_result pool4_add(struct jool_socket *sk, char *iname, struct pool4_entry_usr *entry); struct jool_result pool4_rm(struct jool_socket *sk, char *iname, struct pool4_entry_usr *entry, bool quick); struct jool_result pool4_flush(struct jool_socket *sk, char *iname, bool quick); #endif /* SRC_USR_NL_POOL4_H_ */ jool-4.0.7/src/usr/nl/jool_socket.h0000664000175000017500000000200113576225301014102 00000000000000#ifndef SRC_USR_NL_JOOL_SOCKET_H_ #define SRC_USR_NL_JOOL_SOCKET_H_ #include #include "common/config.h" #include "usr/util/result.h" struct jool_socket { struct nl_sock *sk; xlator_type xt; int genl_family; }; struct jool_response { struct response_hdr *hdr; void *payload; size_t payload_len; }; struct jool_result netlink_setup(struct jool_socket *socket, xlator_type xt); void netlink_teardown(struct jool_socket *socket); typedef struct jool_result (*jool_response_cb)(struct jool_response *, void *); /* _send only sends a message. _request both sends and handles the response. */ struct jool_result netlink_send(struct jool_socket *socket, char *iname, void *request, __u32 request_len); struct jool_result netlink_request(struct jool_socket *socket, char *iname, void *request, __u32 request_len, jool_response_cb cb, void *cb_arg); struct jool_result netlink_parse_response(void *data, size_t data_len, struct jool_response *response); #endif /* SRC_USR_NL_JOOL_SOCKET_H_ */ jool-4.0.7/src/usr/nl/bib.c0000664000175000017500000000600113576225301012322 00000000000000#include "bib.h" #include #define HDR_LEN sizeof(struct request_hdr) #define PAYLOAD_LEN sizeof(struct request_bib) struct foreach_args { bib_foreach_cb cb; void *args; struct request_bib *request; }; static struct jool_result bib_foreach_response(struct jool_response *response, void *arg) { struct bib_entry_usr *entries = response->payload; struct foreach_args *args = arg; unsigned int entry_count; unsigned int e; struct jool_result result; entry_count = response->payload_len / sizeof(*entries); for (e = 0; e < entry_count; e++) { result = args->cb(&entries[e], args->args); if (result.error) return result; } args->request->foreach.addr4_set = response->hdr->pending_data; if (entry_count > 0) args->request->foreach.addr4 = entries[entry_count - 1].addr4; return result_success(); } struct jool_result bib_foreach(struct jool_socket *sk, char *iname, l4_protocol proto, bib_foreach_cb cb, void *_args) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; struct request_bib *payload = (struct request_bib *)(request + HDR_LEN); struct foreach_args args; struct jool_result result; init_request_hdr(hdr, sk->xt, MODE_BIB, OP_FOREACH, false); payload->l4_proto = proto; payload->foreach.addr4_set = false; memset(&payload->foreach.addr4, 0, sizeof(payload->foreach.addr4)); args.cb = cb; args.args = _args; args.request = payload; do { result = netlink_request(sk, iname, request, sizeof(request), bib_foreach_response, &args); } while (!result.error && payload->foreach.addr4_set); return result; } struct jool_result bib_add(struct jool_socket *sk, char *iname, struct ipv6_transport_addr *a6, struct ipv4_transport_addr *a4, l4_protocol proto) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; struct request_bib *payload = (struct request_bib *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_BIB, OP_ADD, false); payload->l4_proto = proto; payload->add.addr6 = *a6; payload->add.addr4 = *a4; return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } struct jool_result bib_rm(struct jool_socket *sk, char *iname, struct ipv6_transport_addr *a6, struct ipv4_transport_addr *a4, l4_protocol proto) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; struct request_bib *payload = (struct request_bib *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_BIB, OP_REMOVE, false); payload->l4_proto = proto; if (a6) { payload->rm.addr6_set = true; memcpy(&payload->rm.addr6, a6, sizeof(*a6)); } else { payload->rm.addr6_set = false; memset(&payload->rm.addr6, 0, sizeof(payload->rm.addr6)); } if (a4) { payload->rm.addr4_set = true; memcpy(&payload->rm.addr4, a4, sizeof(*a4)); } else { payload->rm.addr4_set = false; memset(&payload->rm.addr4, 0, sizeof(payload->rm.addr4)); } return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } jool-4.0.7/src/usr/nl/eamt.h0000664000175000017500000000155313576225301012530 00000000000000#ifndef SRC_USR_NL_EAMT_H_ #define SRC_USR_NL_EAMT_H_ #include "common/config.h" #include "jool_socket.h" typedef struct jool_result (*eamt_foreach_cb)(struct eamt_entry *entry, void *args); struct jool_result eamt_foreach(struct jool_socket *sk, char *iname, eamt_foreach_cb cb, void *args); struct jool_result eamt_add(struct jool_socket *sk, char *iname, struct ipv6_prefix *p6, struct ipv4_prefix *p4, bool force); struct jool_result eamt_rm(struct jool_socket *sk, char *iname, struct ipv6_prefix *p6, struct ipv4_prefix *p4); struct jool_result eamt_flush(struct jool_socket *sk, char *iname); struct jool_result eamt_query_v6(struct jool_socket *sk, char *iname, struct in6_addr *in, struct in_addr *out); struct jool_result eamt_query_v4(struct jool_socket *sk, char *iname, struct in_addr *in, struct in6_addr *out); #endif /* SRC_USR_NL_EAMT_H_ */ jool-4.0.7/src/usr/nl/json.c0000664000175000017500000006030613576225301012547 00000000000000#include "json.h" #include #include #include #include "buffer.h" #include "common/config.h" #include "common/constants.h" #include "common/globals.h" #include "usr/util/cJSON.h" #include "usr/util/file.h" #include "usr/util/str_utils.h" /* TODO (warning) These variables prevent this module from being thread-safe. */ static struct jool_socket sk; static char *iname; static xlator_flags flags; static bool force; struct json_meta { char *name; /* This being NULL signals the end of the array. */ /* Second argument is @arg1 and third argument is @arg2. */ struct jool_result (*handler)(cJSON *, void *, void *); void *arg1; void *arg2; bool mandatory; bool already_found; }; /* * ================================= * ======== Error functions ======== * ================================= */ static struct jool_result duplicates_found(char *name) { return result_from_error( -EEXIST, "Multiple '%s' tags found. Aborting...", name ); } static struct jool_result missing_tag(char *parent, char *child) { return result_from_error( -EINVAL, "Object '%s' is missing the '%s' child.", parent ? parent : "", child ); } static struct jool_result type_mismatch(char const *field, cJSON *json, char const *expected) { if (!field) field = ""; switch (json->type) { case cJSON_False: return result_from_error( -EINVAL, "The '%s' element 'false' is not a valid %s.", field, expected ); case cJSON_True: return result_from_error( -EINVAL, "The '%s' element 'true' is not a valid %s.", field, expected ); case cJSON_NULL: return result_from_error( -EINVAL, "The '%s' element 'null' is not a valid %s.", field, expected ); case cJSON_Number: if (json->numflags & VALUENUM_UINT) { return result_from_error( -EINVAL, "The '%s' element '%u' is not a valid %s.", field, json->valueuint, expected ); } if (json->numflags & VALUENUM_INT) { return result_from_error( -EINVAL, "The '%s' element '%d' is not a valid %s.", field, json->valueint, expected ); } return result_from_error( -EINVAL, "The '%s' element '%f' is not a valid %s.", field, json->valuedouble, expected ); case cJSON_String: return result_from_error( -EINVAL, "The '%s' element '%s' is not a valid %s.", field, json->valuestring, expected ); case cJSON_Array: return result_from_error( -EINVAL, "The '%s' element appears to be an array, not a '%s'.", field, expected ); case cJSON_Object: return result_from_error( -EINVAL, "The '%s' element appears to be an object, not a '%s'.", field, expected ); } return result_from_error( -EINVAL, "The '%s' element has unknown type. (Expected a '%s'.)", field, expected ); } static struct jool_result string_expected(const char *field, cJSON *json) { return type_mismatch(field, json, "String"); } /* * ================================= * ============= Utils ============= * ================================= */ static bool tagname_equals(cJSON *json, char *name) { return strcasecmp(json->string, name) == 0; } static struct jool_result validate_uint(char *field_name, cJSON *node, __u64 min, __u64 max) { if (node->type != cJSON_Number || !(node->numflags & VALUENUM_UINT)) return type_mismatch(field_name, node, "unsigned integer"); if (node->valueuint < min || max < node->valueuint) { return result_from_error( -EINVAL, "%s %u is out of range (%llu-%llu).", field_name, node->valueuint, min, max ); } return result_success(); } /* * ================================= * ========= Netlink Buffer ======== * ================================= */ static struct jool_result init_buffer(struct nl_buffer *buffer, enum parse_section section) { struct request_hdr hdr; __u16 tmp = section; struct jool_result result; init_request_hdr(&hdr, xlator_flags2xt(flags), MODE_PARSE_FILE, OP_ADD, force); result = nlbuffer_write(buffer, &hdr, sizeof(hdr)); if (result.error) return result; return nlbuffer_write(buffer, &tmp, sizeof(tmp)); } static struct jool_result buffer_alloc(enum parse_section section, struct nl_buffer **out) { struct nl_buffer *buffer; struct jool_result result; buffer = nlbuffer_alloc(&sk, iname); if (!buffer) return result_from_enomem(); result = init_buffer(buffer, section); if (result.error) { nlbuffer_destroy(buffer); return result; } *out = buffer; return result; } static struct jool_result buffer_write(struct nl_buffer *buffer, enum parse_section section, void *payload, size_t payload_len) { struct jool_result result; result = nlbuffer_write(buffer, payload, payload_len); if (result.error != -ENOSPC) return result; result = nlbuffer_flush(buffer); if (result.error) return result; result = init_buffer(buffer, section); if (result.error) return result; return nlbuffer_write(buffer, payload, payload_len); } /* * ================================== * ===== Generic object handlers ==== * ================================== */ static struct jool_result handle_child(struct cJSON *child, struct json_meta *metadata) { struct json_meta *meta; if (tagname_equals(child, "comment")) return result_success(); for (meta = metadata; meta->name; meta++) { if (tagname_equals(child, meta->name)) { if (meta->already_found) return duplicates_found(meta->name); meta->already_found = true; return meta->handler(child, meta->arg1, meta->arg2); } } return result_from_error(-EINVAL, "Unknown tag: '%s'", child->string); } static struct jool_result handle_object(cJSON *obj, struct json_meta *metadata) { struct json_meta *meta; cJSON *child; struct jool_result result; if (obj->type != cJSON_Object) return type_mismatch(obj->string, obj, "Object"); for (child = obj->child; child; child = child->next) { result = handle_child(child, metadata); if (result.error) return result; } for (meta = metadata; meta->name; meta++) if (meta->mandatory && !meta->already_found) return missing_tag(obj->string, meta->name); return result_success(); } static struct jool_result handle_array(cJSON *json, char *name, enum parse_section section, struct jool_result (*entry_handler)(cJSON *, struct nl_buffer *)) { struct nl_buffer *buffer; unsigned int i; struct jool_result result; if (json->type != cJSON_Array) return type_mismatch(name, json, "Array"); result = buffer_alloc(section, &buffer); if (result.error) return result; for (json = json->child, i = 1; json; json = json->next, i++) { result = entry_handler(json, buffer); if (result.error) goto end; } result = nlbuffer_flush(buffer); /* Fall through. */ end: nlbuffer_destroy(buffer); return result; } /* * ================================= * == Message writing for globals == * ================================= */ static struct jool_result write_bool(struct global_field *field, cJSON *json, void *payload) { config_bool cb_true = true; config_bool cb_false = false; switch (json->type) { case cJSON_True: memcpy(payload, &cb_true, sizeof(cb_true)); return result_success(); case cJSON_False: memcpy(payload, &cb_false, sizeof(cb_false)); return result_success(); } return type_mismatch(field->name, json, "boolean"); } static struct jool_result write_u8(struct global_field *field, cJSON *json, void *payload) { __u8 value; struct jool_result result; result = validate_uint(field->name, json, field->min, field->max); if (result.error) return result; value = json->valueuint; memcpy(payload, &value, sizeof(value)); return result; } static struct jool_result write_u32(struct global_field *field, cJSON *json, void *payload) { __u32 value; struct jool_result result; result = validate_uint(field->name, json, field->min, field->max); if (result.error) return result; value = json->valueuint; memcpy(payload, &value, sizeof(value)); return result; } static struct jool_result write_timeout(struct global_field *field, cJSON *json, void *payload) { __u32 value; struct jool_result result; if (json->type != cJSON_String) return string_expected(field->name, json); result = str_to_timeout(json->valuestring, &value, field->min, field->max); if (result.error) return result; memcpy(payload, &value, sizeof(value)); return result; } static struct jool_result write_plateaus(struct global_field *field, cJSON *node, void *payload) { struct mtu_plateaus *plateaus = payload; unsigned int i = 0; struct jool_result result; for (node = node->child; node; node = node->next) { if (i > PLATEAUS_MAX) { return result_from_error( -EINVAL, "Too many plateaus. (max is %u)", PLATEAUS_MAX ); } result = validate_uint(field->name, node, 0, MAX_U16); if (result.error) return result; plateaus->values[i] = node->valueuint; i++; } plateaus->count = i; return result_success(); } static struct jool_result write_others(struct global_field *field, cJSON *json, void *payload) { if (json->type == cJSON_NULL) return field->type->parse(field, "null", payload); if (json->type == cJSON_String) return field->type->parse(field, json->valuestring, payload); return type_mismatch(field->name, json, field->type->name); } /* * ================================= * ======= Global tag handler ====== * ================================= */ static struct jool_result write_field(struct global_field *field, struct cJSON *json, void *payload) { /* * TODO (fine) This does not scale well. We'll need a big refactor of * the json module or use some other library. */ switch (field->type->id) { case GTI_BOOL: return write_bool(field, json, payload); case GTI_NUM8: return write_u8(field, json, payload); case GTI_NUM32: return write_u32(field, json, payload); case GTI_TIMEOUT: return write_timeout(field, json, payload); case GTI_PLATEAUS: return write_plateaus(field, json, payload); case GTI_PREFIX6: case GTI_PREFIX4: case GTI_HAIRPIN_MODE: return write_others(field, json, payload); } return result_from_error( -EINVAL, "Unknown field type: %u", field->type->id ); } static struct jool_result write_global(struct cJSON *json, void *_field, void *buffer) { struct global_field *field = _field; size_t size; struct global_value *hdr; struct jool_result result; size = sizeof(struct global_value) + field->type->size; hdr = malloc(size); if (!hdr) return result_from_enomem(); hdr->type = global_field_index(field); hdr->len = field->type->size; result = write_field(field, json, hdr + 1); if (!result.error) result = buffer_write(buffer, SEC_GLOBAL, hdr, size); free(hdr); return result; } static struct jool_result create_globals_meta(struct nl_buffer *buffer, struct json_meta **globals_meta) { struct global_field *fields; unsigned int field_count; struct json_meta *meta; unsigned int i; *globals_meta = NULL; /* Actually unneeded; shuts up gcc */ get_global_fields(&fields, &field_count); meta = malloc(field_count * sizeof(struct json_meta) + 1); if (!meta) return result_from_enomem(); for (i = 0; i < field_count; i++) { meta[i].name = fields[i].name; meta[i].handler = write_global; meta[i].arg1 = &fields[i]; meta[i].arg2 = buffer; meta[i].mandatory = false; meta[i].already_found = false; } meta[field_count].name = NULL; *globals_meta = meta; return result_success(); } static struct jool_result handle_global(cJSON *json) { struct nl_buffer *buffer; struct json_meta *meta; struct jool_result result; result = buffer_alloc(SEC_GLOBAL, &buffer); if (result.error) return result; result = create_globals_meta(buffer, &meta); if (result.error) goto end2; result = handle_object(json, meta); if (result.error) goto end; result = nlbuffer_flush(buffer); /* Fall through. */ end: free(meta); end2: nlbuffer_destroy(buffer); return result; } /* * ================================= * === Parsers of database fields == * ================================= */ static struct jool_result json2prefix6(cJSON *json, void *arg1, void *arg2) { return (json->type == cJSON_String) ? str_to_prefix6(json->valuestring, arg1) : string_expected(json->string, json); } static struct jool_result json2prefix4(cJSON *json, void *arg1, void *arg2) { return (json->type == cJSON_String) ? str_to_prefix4(json->valuestring, arg1) : string_expected(json->string, json); } static struct jool_result json2mark(cJSON *json, void *arg1, void *arg2) { __u32 *mark = arg1; struct jool_result result; result = validate_uint(json->string, json, 0, MAX_U32); if (result.error) return result; *mark = json->valueint; return result; } static struct jool_result json2port_range(cJSON *json, void *arg1, void *arg2) { return (json->type == cJSON_String) ? str_to_port_range(json->valuestring, arg1) : string_expected(json->string, json); } static struct jool_result json2max_iterations(cJSON *json, void *arg1, void *arg2) { struct pool4_entry_usr *entry = arg1; struct jool_result result; switch (json->type) { case cJSON_Number: result = validate_uint(OPTNAME_MAX_ITERATIONS, json, 1, MAX_U32); if (result.error) return result; entry->flags = ITERATIONS_SET; entry->iterations = json->valueuint; return result_success(); case cJSON_String: if (strcmp(json->valuestring, "auto") == 0) { entry->flags = ITERATIONS_SET | ITERATIONS_AUTO; entry->iterations = 0; return result_success(); } if (strcmp(json->valuestring, "infinity") == 0) { entry->flags = ITERATIONS_SET | ITERATIONS_INFINITE; entry->iterations = 0; return result_success(); } return result_from_error( -EINVAL, "Unrecognized string: '%s'", json->valuestring ); } return type_mismatch(OPTNAME_MAX_ITERATIONS, json, "string or number"); } static struct jool_result json2taddr6(cJSON *json, void *arg1, void *arg2) { return (json->type == cJSON_String) ? str_to_addr6_port(json->valuestring, arg1) : string_expected(json->string, json); } static struct jool_result json2taddr4(cJSON *json, void *arg1, void *arg2) { return (json->type == cJSON_String) ? str_to_addr4_port(json->valuestring, arg1) : string_expected(json->string, json); } static struct jool_result json2proto(cJSON *json, void *arg1, void *arg2) { l4_protocol proto; if (json->type != cJSON_String) return string_expected(json->string, json); proto = str_to_l4proto(json->valuestring); if (proto == L4PROTO_OTHER) { return result_from_error( -EINVAL, "Protocol '%s' is unknown.", json->valuestring ); } *((__u8 *)arg1) = proto; return result_success(); } /* * ================================= * ===== Database tag handlers ===== * ================================= */ static struct jool_result handle_eam_entry(cJSON *json, struct nl_buffer *buffer) { struct eamt_entry eam; struct json_meta meta[] = { { "ipv6 prefix", json2prefix6, &eam.prefix6, NULL, true }, { "ipv4 prefix", json2prefix4, &eam.prefix4, NULL, true }, { NULL }, }; struct jool_result result; result = handle_object(json, meta); if (result.error) return result; return buffer_write(buffer, SEC_EAMT, &eam, sizeof(eam)); } static struct jool_result handle_blacklist_entry(cJSON *json, struct nl_buffer *buffer) { struct ipv4_prefix prefix; struct jool_result result; if (json->type != cJSON_String) return string_expected("blacklist entry", json); result = str_to_prefix4(json->valuestring, &prefix); if (result.error) return result; return buffer_write(buffer, SEC_BLACKLIST, &prefix, sizeof(prefix)); } static struct jool_result handle_pool4_entry(cJSON *json, struct nl_buffer *buffer) { struct pool4_entry_usr entry; struct json_meta meta[] = { { OPTNAME_MARK, json2mark, &entry.mark, NULL, false }, { "protocol", json2proto, &entry.proto, NULL, true }, { "prefix", json2prefix4, &entry.range.prefix, NULL, true }, { "port range", json2port_range, &entry.range.ports, NULL, false }, { OPTNAME_MAX_ITERATIONS, json2max_iterations, &entry, NULL, false }, { NULL }, }; struct jool_result result; entry.mark = 0; entry.range.ports.min = DEFAULT_POOL4_MIN_PORT; entry.range.ports.max = DEFAULT_POOL4_MAX_PORT; entry.iterations = 0; entry.flags = 0; result = handle_object(json, meta); if (result.error) return result; return buffer_write(buffer, SEC_POOL4, &entry, sizeof(entry)); } static struct jool_result handle_bib_entry(cJSON *json, struct nl_buffer *buffer) { struct bib_entry_usr entry; struct json_meta meta[] = { { "ipv6 address", json2taddr6, &entry.addr6, NULL, true }, { "ipv4 address", json2taddr4, &entry.addr4, NULL, true }, { "protocol", json2proto, &entry.l4_proto, NULL, true }, { NULL }, }; struct jool_result result; entry.is_static = true; result = handle_object(json, meta); if (result.error) return result; return buffer_write(buffer, SEC_BIB, &entry, sizeof(entry)); } /* * ========================================== * = Second level tag handlers, second pass = * ========================================== */ static struct jool_result do_nothing(cJSON *json, void *arg1, void *arg2) { return result_success(); } static struct jool_result handle_global_tag(cJSON *json, void *arg1, void *arg2) { return handle_global(json); } static struct jool_result handle_eamt_tag(cJSON *json, void *arg1, void *arg2) { return handle_array(json, OPTNAME_EAMT, SEC_EAMT, handle_eam_entry); } static struct jool_result handle_bl4_tag(cJSON *json, void *arg1, void *arg2) { return handle_array(json, OPTNAME_BLACKLIST, SEC_BLACKLIST, handle_blacklist_entry); } static struct jool_result handle_pool4_tag(cJSON *json, void *arg1, void *arg2) { return handle_array(json, OPTNAME_POOL4, SEC_POOL4, handle_pool4_entry); } static struct jool_result handle_bib_tag(cJSON *json, void *arg1, void *arg2) { return handle_array(json, OPTNAME_BIB, SEC_BIB, handle_bib_entry); } /* * ================================== * = Root tag handlers, second pass = * ================================== */ static struct jool_result parse_siit_json(cJSON *json) { struct json_meta meta[] = { /* instance and framework were already handled. */ { OPTNAME_INAME, do_nothing, NULL, NULL, true }, { OPTNAME_FW, do_nothing, NULL, NULL, true }, { OPTNAME_GLOBAL, handle_global_tag, NULL, NULL, false }, { OPTNAME_EAMT, handle_eamt_tag, NULL, NULL, false }, { OPTNAME_BLACKLIST, handle_bl4_tag, NULL, NULL, false }, { NULL }, }; return handle_object(json, meta); } static struct jool_result parse_nat64_json(cJSON *json) { struct json_meta meta[] = { /* instance and framework were already handled. */ { OPTNAME_INAME, do_nothing, NULL, NULL, true }, { OPTNAME_FW, do_nothing, NULL, NULL, true }, { OPTNAME_GLOBAL, handle_global_tag, NULL, NULL, false }, { OPTNAME_POOL4, handle_pool4_tag, NULL, NULL, false }, { OPTNAME_BIB, handle_bib_tag, NULL, NULL, false }, { NULL }, }; return handle_object(json, meta); } /* * ========================================= * = Second level tag handlers, first pass = * ========================================= */ static struct jool_result handle_instance_tag(cJSON *json, void *_iname, void *arg2) { int error; if (json->type != cJSON_String) return string_expected(json->string, json); error = iname_validate(json->valuestring, false); if (error) { return result_from_error( error, INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1 ); } if (_iname && strcmp(_iname, json->valuestring) != 0) { return result_from_error( -EINVAL, "The -i command line argument (%s) does not match the instance name defined in the file (%s).\n" "You might want to delete one of them.", (char *)_iname, json->valuestring ); } iname = json->valuestring; return result_success(); } static struct jool_result handle_framework_tag(cJSON *json, void *arg1, void *arg2) { if (json->type != cJSON_String) return string_expected(json->string, json); if (STR_EQUAL(json->valuestring, "netfilter")) { flags |= XF_NETFILTER; return result_success(); } else if (STR_EQUAL(json->valuestring, "iptables")) { flags |= XF_IPTABLES; return result_success(); } return result_from_error( -EINVAL, "Unknown framework: '%s'", json->valuestring ); } /* * ================================ * = Root tag handler, first pass = * ================================ */ /* * Sets the @iname and @flags global variables according to @_iname and @json. */ static struct jool_result prepare_instance(char *_iname, cJSON *json) { struct json_meta meta[] = { { OPTNAME_INAME, handle_instance_tag, _iname, NULL, false }, { OPTNAME_FW, handle_framework_tag, NULL, NULL, true }, /* The rest will be handled later. */ { OPTNAME_GLOBAL, do_nothing }, { OPTNAME_EAMT, do_nothing }, { OPTNAME_BLACKLIST, do_nothing }, { OPTNAME_POOL4, do_nothing }, { OPTNAME_BIB, do_nothing }, { NULL }, }; struct jool_result result; iname = NULL; /* * We want to be a little lenient if the user defines both -i and the * instance tag. Normally, we would complain about the duplication, but * we don't want to return negative reinforcement if the user is simply * used to input -i and the strings are the same. This would only be * irritating. * So don't do `iname = _iname` yet. */ result.error = iname_validate(_iname, true); if (result.error) { return result_from_error( result.error, INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1 ); } result = handle_object(json, meta); if (result.error) return result; if (!iname && !_iname) return missing_tag("root", OPTNAME_INAME); if (!iname) iname = _iname; return result; } /* * ================================= * ======== Outer functions ======== * ================================= */ static struct jool_result send_ctrl_msg(enum parse_section section) { struct nl_buffer *buffer; struct request_init request; struct jool_result result; result = buffer_alloc(section, &buffer); if (result.error) return result; if (section == SEC_INIT) { request.xf = xlator_flags2xf(flags); result = buffer_write(buffer, section, &request, sizeof(request)); if (result.error) goto end; } result = nlbuffer_flush(buffer); /* Fall through */ end: nlbuffer_destroy(buffer); return result; } static struct jool_result do_parsing(char *iname, char *buffer) { cJSON *json; struct jool_result result; json = cJSON_Parse(buffer); if (!json) { return result_from_error( -EINVAL, "The JSON parser got confused around the beginning of this string:\n" "%s", cJSON_GetErrorPtr() ); } result = prepare_instance(iname, json); if (result.error) goto fail; result = send_ctrl_msg(SEC_INIT); if (result.error) goto fail; switch (xlator_flags2xt(flags)) { case XT_SIIT: result = parse_siit_json(json); break; case XT_NAT64: result = parse_nat64_json(json); break; default: result = result_from_error( -EINVAL, "Invalid translator type: %d", xlator_flags2xt(flags) ); } if (result.error) goto fail; /* * Send the control message before deleting, because @iname might point * to the json object, and send_ctrl_msg() needs @iname. */ result = send_ctrl_msg(SEC_COMMIT); cJSON_Delete(json); return result; fail: cJSON_Delete(json); return result; } struct jool_result json_parse(struct jool_socket *_sk, xlator_type xt, char *iname, char *file_name, bool _force) { char *buffer; struct jool_result result; sk = *_sk; flags = xt; force = _force; result = file_to_string(file_name, &buffer); if (result.error) return result; result = do_parsing(iname, buffer); free(buffer); return result; } static struct jool_result __json_get_iname(cJSON *root, char **out) { cJSON *child; if (root->type != cJSON_Object) return type_mismatch("root", root, "Object"); for (child = root->child; child; child = child->next) { if (tagname_equals(child, OPTNAME_INAME)) { *out = strdup(child->valuestring); return ((*out) != NULL) ? result_success() : result_from_enomem(); } } return result_from_error( -EINVAL, "The file does not contain an instance name." ); } struct jool_result json_get_iname(char *file_name, char **out) { char *json_string; cJSON *json; struct jool_result result; result = file_to_string(file_name, &json_string); if (result.error) return result; json = cJSON_Parse(json_string); free(json_string); if (!json) { return result_from_error( -EINVAL, "The JSON parser got confused around the beginning of this string:\n" "%s", cJSON_GetErrorPtr() ); 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dvi-am html \ html-am info info-am install install-am install-data \ install-data-am install-dvi install-dvi-am install-exec \ install-exec-am install-html install-html-am install-info \ install-info-am install-man install-pdf install-pdf-am \ install-pkglibLTLIBRARIES install-ps install-ps-am \ install-strip installcheck installcheck-am installdirs \ maintainer-clean maintainer-clean-generic mostlyclean \ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \ pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \ uninstall-pkglibLTLIBRARIES .PRECIOUS: Makefile # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: jool-4.0.7/src/usr/nl/jool_socket.c0000664000175000017500000001545713576225301014120 00000000000000#include "jool_socket.h" #include #include #include #include "common/config.h" /* * Assert we're compiling with libnl version >= 3.0 * * Note: it looks like this shouldn't be here, since it's the configure script's * responsibility. * However, the configure script seems to fail to detect this properly on RedHat * (and maybe others). */ #if !defined(LIBNL_VER_NUM) #error "Missing LIBNL dependency (need at least version 3)." #endif #if LIBNL_VER_NUM < LIBNL_VER(3, 0) #error "Unsupported LIBNL library version number (< 3.0)." #endif struct response_cb { jool_response_cb cb; void *arg; struct jool_result result; }; static struct jool_result print_error_msg(struct jool_response *response) { int error_code; char *msg; error_code = response->hdr->error_code; if (response->payload_len <= 0) { msg = strerror(error_code); } else { msg = response->payload; if (msg[response->payload_len - 1] != '\0') msg = strerror(error_code); } return result_from_error( error_code, "The kernel module returned error %d: %s", error_code, msg ); } struct jool_result netlink_parse_response(void *data, size_t data_len, struct jool_response *response) { if (data_len < sizeof(struct response_hdr)) { return result_from_error( -EINVAL, "The response of the module is too small. (%zu bytes)", data_len ); } response->hdr = data; response->payload = response->hdr + 1; response->payload_len = data_len - sizeof(struct response_hdr); return response->hdr->error_code ? print_error_msg(response) : result_success(); } /* * Heads up: * Netlink wants this function to return either a negative error code or an enum * nl_cb_action. * Because NL_SKIP == EPERM and NL_STOP == ENOENT, you really need to mind the * sign of the result. */ static int response_handler(struct nl_msg *msg, void *void_arg) { struct jool_response response; struct nlattr *attrs[__ATTR_MAX + 1]; struct response_cb *arg = void_arg; int error; /* Also: arg->result needs to be set on all paths. */ error = genlmsg_parse(nlmsg_hdr(msg), 0, attrs, __ATTR_MAX, NULL); if (error) { arg->result = result_from_error( error, "%s", nl_geterror(error) ); goto return_error; } if (!attrs[ATTR_DATA]) { arg->result = result_from_error( -EINVAL, "The module's response seems to be empty." ); return -EINVAL; } arg->result = netlink_parse_response( nla_data(attrs[ATTR_DATA]), nla_len(attrs[ATTR_DATA]), &response ); if (arg->result.error) goto return_result; if (arg->cb) { arg->result = arg->cb(&response, arg->arg); if (arg->result.error) goto return_result; } return 0; return_result: error = arg->result.error; return_error: return (error < 0) ? error : -error; } struct jool_result netlink_send(struct jool_socket *socket, char *iname, void *request, __u32 request_len) { struct nl_msg *msg; int error; msg = nlmsg_alloc(); if (!msg) { return result_from_error( -EINVAL, "Request allocation failure (Unknown cause)" ); } if (!genlmsg_put(msg, NL_AUTO_PORT, NL_AUTO_SEQ, socket->genl_family, 0, 0, JOOL_COMMAND, 1)) { nlmsg_free(msg); return result_from_error( -EINVAL, "Unknown error building the packet to the kernel." ); } /* * The kernel module already knows that the default instance name is * INAME_DEFAULT. */ if (iname && strcmp(iname, INAME_DEFAULT) != 0) { error = nla_put_string(msg, ATTR_INAME, iname); if (error) { nlmsg_free(msg); return result_from_error( error, "(Instance) write attempt on packet failed: %s", nl_geterror(error) ); } } error = nla_put(msg, ATTR_DATA, request_len, request); if (error) { nlmsg_free(msg); return result_from_error( error, "(Data) write attempt on packet failed: %s", nl_geterror(error) ); } error = nl_send_auto(socket->sk, msg); nlmsg_free(msg); if (error < 0) { return result_from_error( error, "Could not dispatch the request to kernelspace: %s", nl_geterror(error) ); } return result_success(); } /** * @iname can be NULL. The kernel module will assume that the instance name is * "" (empty string). */ struct jool_result netlink_request(struct jool_socket *sk, char *iname, void *request, __u32 request_len, jool_response_cb cb, void *cb_arg) { struct response_cb callback; struct jool_result result; callback.cb = cb; callback.arg = cb_arg; /* Clear out JRF_INITIALIZED and error code */ memset(&callback.result, 0, sizeof(callback.result)); result.error = nl_socket_modify_cb(sk->sk, NL_CB_MSG_IN, NL_CB_CUSTOM, response_handler, &callback); if (result.error < 0) { return result_from_error( result.error, "Could not register response handler: %s\n", nl_geterror(result.error) ); } result = netlink_send(sk, iname, request, request_len); if (result.error) return result; result.error = nl_recvmsgs_default(sk->sk); if (result.error < 0) { if ((callback.result.flags & JRF_INITIALIZED) && callback.result.error) { /* nl_recvmsgs_default() failed during our callback */ return callback.result; } /* nl_recvmsgs_default() failed before or after our callback */ return result_from_error( result.error, "Error receiving the kernel module's response: %s", nl_geterror(result.error) ); } return result_success(); } /** * Contract: The result will contain 0 on success, -ESRCH on module likely not * modprobed, else -EINVAL. */ struct jool_result netlink_setup(struct jool_socket *socket, xlator_type xt) { int error; error = xt_validate(xt); if (error) return result_from_error(error, XT_VALIDATE_ERRMSG); socket->sk = nl_socket_alloc(); if (!socket->sk) { return result_from_error( -EINVAL, "Netlink socket allocation failure (Unknown cause)" ); } /* * For normal requests, we handle ACKs ourselves. The reason is that * Netlink ACK errors do not contain the friendly error string, so * they're useless to us. * https://github.com/NICMx/Jool/issues/169 * * In joold's case, it's because ACKs would only slow us down. * We use UDP in the network, so we're assuming best-effort anyway. */ nl_socket_disable_auto_ack(socket->sk); error = genl_connect(socket->sk); if (error) { nl_socket_free(socket->sk); return result_from_error( -EINVAL, "Could not open the socket to kernelspace: %s", nl_geterror(error) ); } socket->xt = xt; socket->genl_family = genl_ctrl_resolve(socket->sk, GNL_JOOL_FAMILY); if (socket->genl_family < 0) { nl_socket_free(socket->sk); return result_from_error( -ESRCH, "Jool's socket family doesn't seem to exist.\n" "(This probably means Jool hasn't been modprobed.)\n" "Netlink error message: %s", nl_geterror(socket->genl_family) ); } return result_success(); } void netlink_teardown(struct jool_socket *socket) { nl_close(socket->sk); nl_socket_free(socket->sk); } jool-4.0.7/src/usr/nl/buffer.c0000664000175000017500000000235513576225301013047 00000000000000#include "buffer.h" #include #include "common/config.h" #define BUFFER_MAX 256 struct nl_buffer { struct jool_socket *sk; char iname[INAME_MAX_LEN]; unsigned char chars[BUFFER_MAX]; size_t len; }; struct nl_buffer *nlbuffer_alloc(struct jool_socket *sk, char *iname) { struct nl_buffer *buffer; buffer = malloc(sizeof(struct nl_buffer)); if (!buffer) return NULL; buffer->sk = sk; strcpy(buffer->iname, iname); buffer->len = 0; return buffer; } void nlbuffer_destroy(struct nl_buffer *buffer) { free(buffer); } struct jool_result nlbuffer_write(struct nl_buffer *buffer, void *payload, size_t payload_len) { if (payload_len > BUFFER_MAX) { return result_from_error( -EINVAL, "Packet content is larger than packet limit." ); } if (buffer->len + payload_len > BUFFER_MAX) { return result_from_error( -ENOSPC, "Message does not fit in the packet." ); } memcpy(buffer->chars + buffer->len, payload, payload_len); buffer->len += payload_len; return result_success(); } struct jool_result nlbuffer_flush(struct nl_buffer *buffer) { struct jool_result result; result = netlink_request(buffer->sk, buffer->iname, &buffer->chars[0], buffer->len, NULL, NULL); buffer->len = 0; return result; } jool-4.0.7/src/usr/nl/Makefile.am0000664000175000017500000000121413576225301013457 00000000000000pkglib_LTLIBRARIES = libjoolnl.la libjoolnl_la_SOURCES = \ address.c address.h \ bib.c bib.h \ blacklist4.c blacklist4.h \ buffer.c buffer.h \ eamt.c eamt.h \ global.c global.h \ global-impl.c \ instance.c instance.h \ jool_socket.c jool_socket.h \ joold.c joold.h \ json.c json.h \ pool4.c pool4.h \ session.c session.h \ stats.c stats.h \ wrapper-config.c \ wrapper-globals.c \ wrapper-types.c libjoolnl_la_CFLAGS = ${WARNINGCFLAGS} libjoolnl_la_CFLAGS += -I${srcdir}/../../ libjoolnl_la_CFLAGS += ${LIBNLGENL3_CFLAGS} libjoolnl_la_LIBADD = ${LIBNLGENL3_LIBS} libjoolnl_la_LIBADD += ${top_builddir}/src/usr/util/libjoolutil.la jool-4.0.7/src/usr/nl/session.c0000664000175000017500000000353613576225301013263 00000000000000#include "session.h" #include "jool_socket.h" #define HDR_LEN sizeof(struct request_hdr) #define PAYLOAD_LEN sizeof(struct request_session) struct foreach_args { session_foreach_cb cb; void *args; struct request_session *request; }; static struct jool_result session_foreach_response( struct jool_response *response, void *arg) { struct session_entry_usr *entries = response->payload; struct foreach_args *args = arg; __u16 entry_count, i; struct jool_result result; entry_count = response->payload_len / sizeof(*entries); for (i = 0; i < entry_count; i++) { result = args->cb(&entries[i], args->args); if (result.error) return result; } args->request->foreach.offset_set = response->hdr->pending_data; if (entry_count > 0) { struct session_entry_usr *last = &entries[entry_count - 1]; args->request->foreach.offset.src = last->src4; args->request->foreach.offset.dst = last->dst4; } return result_success(); } struct jool_result session_foreach(struct jool_socket *sk, char *iname, l4_protocol proto, session_foreach_cb cb, void *_args) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr; struct request_session *payload; struct foreach_args args; struct jool_result result; hdr = (struct request_hdr *)request; payload = (struct request_session *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_SESSION, OP_FOREACH, false); payload->l4_proto = proto; payload->foreach.offset_set = false; memset(&payload->foreach.offset.src, 0, sizeof(payload->foreach.offset.src)); memset(&payload->foreach.offset.dst, 0, sizeof(payload->foreach.offset.dst)); args.cb = cb; args.args = _args; args.request = payload; do { result = netlink_request(sk, iname, request, sizeof(request), session_foreach_response, &args); } while (!result.error && args.request->foreach.offset_set); return result; } jool-4.0.7/src/usr/nl/joold.c0000664000175000017500000000105113576225301012675 00000000000000#include "joold.h" #include #include "common/config.h" #include "jool_socket.h" struct jool_result joold_advertise(struct jool_socket *sk, char *iname) { struct request_hdr hdr; init_request_hdr(&hdr, sk->xt, MODE_JOOLD, OP_ADVERTISE, false); return netlink_request(sk, iname, &hdr, sizeof(hdr), NULL, NULL); } struct jool_result joold_test(struct jool_socket *sk, char *iname) { struct request_hdr hdr; init_request_hdr(&hdr, sk->xt, MODE_JOOLD, OP_TEST, false); return netlink_request(sk, iname, &hdr, sizeof(hdr), NULL, NULL); } jool-4.0.7/src/usr/nl/global-impl.c0000664000175000017500000001037213576225301013773 00000000000000#include "common/globals.h" #include #include #include #include #include "common/config.h" #include "usr/util/cJSON.h" #include "usr/util/str_utils.h" void print_bool(void *value, bool csv) { bool bvalue = *((bool *)value); if (csv) printf("%s", bvalue ? "TRUE" : "FALSE"); else printf("%s", bvalue ? "true" : "false"); } void print_u8(void *value, bool csv) { __u8 *uvalue = value; printf("%u", *uvalue); } void print_u32(void *value, bool csv) { __u32 *uvalue = value; printf("%u", *uvalue); } void print_timeout(void *value, bool csv) { __u32 *uvalue = value; char string[TIMEOUT_BUFLEN]; timeout2str(*uvalue, string); printf("%s", string); if (!csv) printf(" (HH:MM:SS)"); } void print_plateaus(void *value, bool csv) { struct mtu_plateaus *plateaus = value; unsigned int i; if (csv) printf("\""); for (i = 0; i < plateaus->count; i++) { printf("%u", plateaus->values[i]); if (i != plateaus->count - 1) printf(","); } if (csv) printf("\""); } static void print_prefix(int af, const void *addr, __u8 len, bool set, bool csv) { const char *str; char buffer[INET6_ADDRSTRLEN]; if (!set) { printf("%s", csv ? "" : "(unset)"); return; } str = inet_ntop(af, addr, buffer, sizeof(buffer)); if (str) printf("%s/%u", str, len); else perror("inet_ntop"); } void print_prefix6(void *value, bool csv) { struct config_prefix6 *prefix = value; print_prefix(AF_INET6, &prefix->prefix.addr, prefix->prefix.len, prefix->set, csv); } void print_prefix4(void *value, bool csv) { struct config_prefix4 *prefix = value; print_prefix(AF_INET, &prefix->prefix.addr, prefix->prefix.len, prefix->set, csv); } void print_hairpin_mode(void *value, bool csv) { switch (*((__u8 *)value)) { case EHM_OFF: printf("off"); return; case EHM_SIMPLE: printf("simple"); return; case EHM_INTRINSIC: printf("intrinsic"); return; } printf("unknown"); } void print_fargs(void *value, bool csv) { __u8 uvalue = *((__u8 *)value); int i; printf("%u", uvalue); if (csv) return; printf(" (0b"); for (i = 3; i >= 0; i--) printf("%u", (uvalue >> i) & 0x1); printf("): "); printf("SrcAddr:%u ", (uvalue >> 3) & 1); printf("SrcPort:%u ", (uvalue >> 2) & 1); printf("DstAddr:%u ", (uvalue >> 1) & 1); printf("DstPort:%u", (uvalue >> 0) & 1); } struct jool_result parse_bool(struct global_field *field, char *str, void *result) { return str_to_bool(str, result); } struct jool_result parse_u8(struct global_field *field, char *str, void *result) { return str_to_u8(str, result, field->min, field->max); } struct jool_result parse_u32(struct global_field *field, char *str, void *result) { return str_to_u32(str, result, field->min, field->max); } struct jool_result parse_timeout(struct global_field *field, char *str, void *result) { return str_to_timeout(str, result, field->min, field->max); } struct jool_result parse_plateaus(struct global_field *field, char *str, void *result) { struct mtu_plateaus *plateaus = result; return str_to_plateaus_array(str, plateaus->values, &plateaus->count); } struct jool_result parse_prefix6(struct global_field *field, char *str, void *result) { struct config_prefix6 *prefix = result; if (strcmp(str, "null") == 0) { prefix->set = false; memset(&prefix->prefix, 0, sizeof(prefix->prefix)); return result_success(); } prefix->set = true; return str_to_prefix6(str, &prefix->prefix); } struct jool_result parse_prefix4(struct global_field *field, char *str, void *out) { struct config_prefix4 *prefix = out; if (strcmp(str, "null") == 0) { prefix->set = false; memset(&prefix->prefix, 0, sizeof(prefix->prefix)); return result_success(); } prefix->set = true; return str_to_prefix4(str, &prefix->prefix); } struct jool_result parse_hairpin_mode(struct global_field *field, char *str, void *result) { __u8 *mode = result; if (strcmp(str, "off") == 0) { *mode = EHM_OFF; return result_success(); } else if (strcmp(str, "simple") == 0) { *mode = EHM_SIMPLE; return result_success(); } else if (strcmp(str, "intrinsic") == 0) { *mode = EHM_INTRINSIC; return result_success(); } return result_from_error( -EINVAL, "'%s' cannot be parsed as a hairpinning mode.\n" "Available options: off, simple, intrinsic", str ); } jool-4.0.7/src/usr/nl/blacklist4.c0000664000175000017500000000576513576225301013642 00000000000000#include "blacklist4.h" #include #include "common/config.h" #include "jool_socket.h" #define HDR_LEN sizeof(struct request_hdr) #define PAYLOAD_LEN sizeof(union request_blacklist4) struct foreach_args { blacklist4_foreach_cb cb; void *args; union request_blacklist4 *request; }; static struct jool_result blacklist4_foreach_response( struct jool_response *response, void *arg) { struct ipv4_prefix *prefixes = response->payload; unsigned int prefix_count, i; struct foreach_args *args = arg; struct jool_result result; prefix_count = response->payload_len / sizeof(*prefixes); for (i = 0; i < prefix_count; i++) { result = args->cb(&prefixes[i], args->args); if (result.error) return result; } args->request->foreach.offset_set = response->hdr->pending_data; if (prefix_count > 0) args->request->foreach.offset = prefixes[prefix_count - 1]; return result_success(); } struct jool_result blacklist4_foreach(struct jool_socket *sk, char *iname, blacklist4_foreach_cb cb, void *_args) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr; union request_blacklist4 *payload; struct foreach_args args; struct jool_result result; hdr = (struct request_hdr *)request; payload = (union request_blacklist4 *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_BLACKLIST, OP_FOREACH, false); payload->foreach.offset_set = false; memset(&payload->foreach.offset, 0, sizeof(payload->foreach.offset)); args.cb = cb; args.args = _args; args.request = payload; do { result = netlink_request(sk, iname, &request, sizeof(request), blacklist4_foreach_response, &args); if (result.error) return result; } while (args.request->foreach.offset_set); return result_success(); } struct jool_result blacklist4_add(struct jool_socket *sk, char *iname, struct ipv4_prefix *addrs, bool force) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr; union request_blacklist4 *payload; hdr = (struct request_hdr *)request; payload = (union request_blacklist4 *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_BLACKLIST, OP_ADD, force); payload->add.addrs = *addrs; return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } struct jool_result blacklist4_rm(struct jool_socket *sk, char *iname, struct ipv4_prefix *addrs) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr; union request_blacklist4 *payload; hdr = (struct request_hdr *) request; payload = (union request_blacklist4 *) (request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_BLACKLIST, OP_REMOVE, false); payload->rm.addrs = *addrs; return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } struct jool_result blacklist4_flush(struct jool_socket *sk, char *iname) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *) request; init_request_hdr(hdr, sk->xt, MODE_BLACKLIST, OP_FLUSH, false); return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } jool-4.0.7/src/usr/nl/instance.c0000664000175000017500000001140013576225301013371 00000000000000#include "instance.h" #include #include "jool_socket.h" #define HDR_LEN sizeof(struct request_hdr) #define PAYLOAD_LEN sizeof(union request_instance) struct foreach_args { instance_foreach_entry cb; void *args; union request_instance *request; }; static struct jool_result instance_foreach_response( struct jool_response *response, void *arg) { struct instance_entry_usr *entries = response->payload; struct foreach_args *args = arg; __u16 entry_count, i; struct jool_result result; entry_count = response->payload_len / sizeof(*entries); for (i = 0; i < entry_count; i++) { result = args->cb(&entries[i], args->args); if (result.error) return result; } args->request->foreach.offset_set = response->hdr->pending_data; if (entry_count > 0) args->request->foreach.offset = entries[entry_count - 1]; return result_success(); } struct jool_result instance_foreach(struct jool_socket *sk, instance_foreach_entry cb, void *_args) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr; union request_instance *payload; struct foreach_args args; struct jool_result result; hdr = (struct request_hdr *)request; payload = (union request_instance *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_INSTANCE, OP_FOREACH, false); payload->foreach.offset_set = false; memset(&payload->foreach.offset, 0, sizeof(payload->foreach.offset)); args.cb = cb; args.args = _args; args.request = payload; do { result = netlink_request(sk, NULL, request, sizeof(request), instance_foreach_response, &args); if (result.error) return result; } while (payload->foreach.offset_set); return result_success(); } static struct jool_result jool_hello_cb(struct jool_response *response, void *status) { struct instance_hello_response *payload; if (response->payload_len != sizeof(struct instance_hello_response)) { return result_from_error( -EINVAL, "Jool's response has a bogus length. (expected %zu, got %zu).", sizeof(struct instance_hello_response), response->payload_len ); } payload = response->payload; *((enum instance_hello_status *) status) = payload->status; return result_success(); } /** * If the instance exists, @result will be zero. If the instance does not exist, * @result will be 1. */ struct jool_result instance_hello(struct jool_socket *sk, char *iname, enum instance_hello_status *status) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr; union request_instance *payload; int error; error = iname_validate(iname, true); if (error) { return result_from_error( error, INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1 ); } hdr = (struct request_hdr *)request; payload = (union request_instance *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_INSTANCE, OP_TEST, false); strcpy(payload->hello.iname, iname ? iname : INAME_DEFAULT); return netlink_request(sk, NULL, &request, sizeof(request), jool_hello_cb, status); } struct jool_result instance_add(struct jool_socket *sk, xlator_framework xf, char *iname, struct ipv6_prefix *pool6) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr; union request_instance *payload; int error; error = xf_validate(xf); if (error) return result_from_error(error, XF_VALIDATE_ERRMSG); error = iname_validate(iname, true); if (error) { return result_from_error( error, INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1 ); } hdr = (struct request_hdr *)request; payload = (union request_instance *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_INSTANCE, OP_ADD, false); payload->add.xf = xf; strcpy(payload->add.iname, iname ? iname : INAME_DEFAULT); if (pool6) { payload->add.pool6.set = true; payload->add.pool6.prefix = *pool6; } else { payload->add.pool6.set = false; memset(&payload->add.pool6.prefix, 0, sizeof(payload->add.pool6.prefix)); } return netlink_request(sk, NULL, request, sizeof(request), NULL, NULL); } struct jool_result instance_rm(struct jool_socket *sk, char *iname) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_instance *payload = (union request_instance *) (request + HDR_LEN); int error; error = iname_validate(iname, true); if (error) { return result_from_error( error, INAME_VALIDATE_ERRMSG, INAME_MAX_LEN - 1 ); } init_request_hdr(hdr, sk->xt, MODE_INSTANCE, OP_REMOVE, false); strcpy(payload->rm.iname, iname ? iname : INAME_DEFAULT); return netlink_request(sk, NULL, request, sizeof(request), NULL, NULL); } struct jool_result instance_flush(struct jool_socket *sk) { struct request_hdr request; init_request_hdr(&request, sk->xt, MODE_INSTANCE, OP_FLUSH, false); return netlink_request(sk, NULL, &request, sizeof(request), NULL, NULL); } jool-4.0.7/src/usr/nl/instance.h0000664000175000017500000000131713576225301013404 00000000000000#ifndef SRC_USR_NL_INSTANCE_H_ #define SRC_USR_NL_INSTANCE_H_ #include "common/config.h" #include "jool_socket.h" typedef struct jool_result (*instance_foreach_entry)( struct instance_entry_usr *instance, void *arg); struct jool_result instance_foreach(struct jool_socket *sk, instance_foreach_entry cb, void *args); struct jool_result instance_hello(struct jool_socket *sk, char *iname, enum instance_hello_status *status); struct jool_result instance_add(struct jool_socket *sk, xlator_framework xf, char *iname, struct ipv6_prefix *pool6); struct jool_result instance_rm(struct jool_socket *sk, char *iname); struct jool_result instance_flush(struct jool_socket *sk); #endif /* SRC_USR_NL_INSTANCE_H_ */ jool-4.0.7/src/usr/nl/stats.c0000664000175000017500000002536213576244253012746 00000000000000#include "stats.h" #include #include "common/config.h" #include "jool_socket.h" #define DEFINE_STAT(_id, _doc) { \ .id = _id, \ .name = #_id, \ .doc = _doc, \ } #define TC "Translations cancelled: " static struct jstat_metadata const jstat_metadatas[] = { DEFINE_STAT(JSTAT_RECEIVED6, ""), DEFINE_STAT(JSTAT_RECEIVED4, ""), DEFINE_STAT(JSTAT_SUCCESS, "Successful translations. (Note: 'Successful translation' does not imply that the packet was actually delivered.)"), DEFINE_STAT(JSTAT_BIB_ENTRIES, "Number of BIB entries currently held in the BIB."), DEFINE_STAT(JSTAT_SESSIONS, "Number of session entries currently held in the BIB."), DEFINE_STAT(JSTAT_ENOMEM, "Memory allocation failures."), DEFINE_STAT(JSTAT_XLATOR_DISABLED, TC "Translator was manually disabled."), DEFINE_STAT(JSTAT_POOL6_UNSET, TC "pool6 was unset."), DEFINE_STAT(JSTAT_SKB_SHARED, TC "Packet was shared. (In the kernel, when packets are 'shared', they cannot be modified.)"), DEFINE_STAT(JSTAT_L3HDR_OFFSET, TC "Packet corrupted; Network header offset is not relative to skb->data."), DEFINE_STAT(JSTAT_SKB_TRUNCATED, TC "Packet corrupted; Data stopped in the middle of a header."), DEFINE_STAT(JSTAT_FRAGMENTED_PING, TC "Packet was a fragmented ping, so its checksum was impossible to translate."), DEFINE_STAT(JSTAT_HDR6, TC "Some IPv6 header field was bogus. (Eg. version was not 6.)"), DEFINE_STAT(JSTAT_HDR4, TC "Some IPv4 header field was bogus. (Eg. version was not 4.)"), DEFINE_STAT(JSTAT_UNKNOWN_L4_PROTO, TC "Packet carried an unknown transport protocol. (Untranslatable by NAT64.)"), DEFINE_STAT(JSTAT_UNKNOWN_ICMP6_TYPE, TC "ICMPv6 header's type value has no ICMPv4 counterpart."), DEFINE_STAT(JSTAT_UNKNOWN_ICMP4_TYPE, TC "ICMPv4 header's type value has no ICMPv6 counterpart."), DEFINE_STAT(JSTAT_DOUBLE_ICMP6_ERROR, TC "ICMPv6 error contained another ICMPv6 error. (Which is illegal.)"), DEFINE_STAT(JSTAT_DOUBLE_ICMP4_ERROR, TC "ICMPv4 error contained another ICMPv4 error. (Which is illegal.)"), DEFINE_STAT(JSTAT_UNKNOWN_PROTO_INNER, TC "ICMP error's inner packet had an unknown transport protocol. (Untranslatable by NAT64.)"), DEFINE_STAT(JSTAT_HAIRPIN_LOOP, TC "Incoming IPv6 packet's source address matches pool6. (Only the destination address should match pool6.)\n" "You have to think of the IPv4 network as an IPv6 network whose prefix is pool6. If your actual IPv6 client also has the pool6 prefix, then your setup risks IP address collision.\n" "Either change the client's address or fix your pool6 so it represents a unique network."), DEFINE_STAT(JSTAT_POOL6_MISMATCH, TC "IPv6 packet's destination address did not match pool6. (ie. Packet was not meant to be translated.)"), DEFINE_STAT(JSTAT_POOL4_MISMATCH, TC "IPv4 packet's destination address and transport protocol did not match pool4. (ie. Packet was not meant to be translated.)\n" "If the instance is a Netfilter translator, this counter increases randomly from normal operation, and is harmless.\n" "If the instance is an iptables translator, this counter being positive suggests a mismatch between the IPv4 iptables rule(s) and the instance's configuration."), DEFINE_STAT(JSTAT_ICMP6_FILTER, "Packets filtered by `" OPTNAME_DROP_ICMP6_INFO "` policy."), /* TODO This one might signal a programming error. */ DEFINE_STAT(JSTAT_UNTRANSLATABLE_DST6, TC "IPv6 packet's destination address did not match pool6."), DEFINE_STAT(JSTAT_UNTRANSLATABLE_DST4, TC "IPv4 packet's source address could not be translated with the given pool6."), DEFINE_STAT(JSTAT_MASK_DOMAIN_NOT_FOUND, TC "There was no pool4 entry whose protocol and mark matched the incoming IPv6 packet."), DEFINE_STAT(JSTAT_BIB6_NOT_FOUND, TC "IPv6 packet did not match a BIB entry from the database, and one could not be created."), DEFINE_STAT(JSTAT_BIB4_NOT_FOUND, TC "IPv4 packet did not match a BIB entry from the database."), DEFINE_STAT(JSTAT_SESSION_NOT_FOUND, TC "Packet was an ICMP error, but did not match a session entry from the database. (Which means that the original packet couldn't have been translated.)"), DEFINE_STAT(JSTAT_ADF, "Packets filtered by `" OPTNAME_DROP_BY_ADDR "` policy."), DEFINE_STAT(JSTAT_V4_SYN, "Packets filtered by `" OPTNAME_DROP_EXTERNAL_TCP "` policy."), DEFINE_STAT(JSTAT_SYN6_EXPECTED, TC "Incoming IPv6 packet was the first of a TCP connection, but its SYN flag was disabled."), DEFINE_STAT(JSTAT_SYN4_EXPECTED, TC "Incoming IPv4 packet was the first of a TCP connection, but its SYN flag was disabled."), DEFINE_STAT(JSTAT_TYPE1PKT, "Total number of Type 1 packets stored. (See https://github.com/NICMx/Jool/blob/584a846d09e891a0cd6342426b7a25c6478c90d6/src/mod/nat64/bib/pkt_queue.h#L77) (This counter is not decremented when a packet leaves the queue.)"), DEFINE_STAT(JSTAT_TYPE2PKT, "Total number of Type 2 packets stored. (See https://github.com/NICMx/Jool/blob/584a846d09e891a0cd6342426b7a25c6478c90d6/src/mod/nat64/bib/pkt_queue.h#L77) (This counter is not decremented when a packet leaves the queue.)"), DEFINE_STAT(JSTAT_SO_EXISTS, TC "Packet was a Simultaneous Open retry. (Client was trying to punch a hole, and was being unnecessarily greedy.)"), DEFINE_STAT(JSTAT_SO_FULL, TC "Packet queue was full, so the Simultaneous Open attempt was denied. (Too many clients were trying to punch holes.)"), DEFINE_STAT(JSTAT64_SRC, TC "IPv6 packet's source address did not match pool6 nor any EAMT entries, or the resulting address was blacklist4ed."), DEFINE_STAT(JSTAT64_DST, TC "IPv6 packet's destination address did not match pool6 nor any EAMT entries, or the resulting address was blacklist4ed."), DEFINE_STAT(JSTAT64_PSKB_COPY, TC "It was not possible to allocate the IPv4 counterpart of the IPv6 packet. (The kernel's pskb_copy() function failed.)"), DEFINE_STAT(JSTAT64_ICMP_CSUM, TC "Incoming ICMPv6 error packet's checksum was incorrect."), DEFINE_STAT(JSTAT64_UNTRANSLATABLE_DEST_UNREACH, TC "Packet was an ICMPv6 Destination Unreachable error message, and its code has no ICMPv4 counterpart."), DEFINE_STAT(JSTAT64_UNTRANSLATABLE_PARAM_PROB, TC "Packet was an ICMPv6 Parameter Problem error message, and its code has no ICMPv4 counterpart."), DEFINE_STAT(JSTAT64_UNTRANSLATABLE_PARAM_PROB_PTR, TC "Packet was an ICMv6 Parameter Problem error message, but its pointer was untranslatable."), DEFINE_STAT(JSTAT64_TTL, TC "IPv6 packet's Hop Limit field was 0 or 1."), DEFINE_STAT(JSTAT64_FRAG_THEN_EXT, TC "IPv6 packet has a Hop-by-Hop, Destination or Routing header after the Fragment header."), DEFINE_STAT(JSTAT64_SEGMENTS_LEFT, TC "IPv6 packet had a Segments Left field, and it was nonzero."), DEFINE_STAT(JSTAT46_SRC, TC "IPv4 packet's source address was blacklist4ed, or did not match pool6 nor any EAMT entries."), DEFINE_STAT(JSTAT46_DST, TC "IPv4 packet's destination address was blacklist4ed, or did not match pool6 nor any EAMT entries."), DEFINE_STAT(JSTAT46_PSKB_COPY, TC "It was not possible to allocate the IPv6 counterpart of the IPv4 packet. (The kernel's __pskb_copy() function failed.)"), DEFINE_STAT(JSTAT46_ICMP_CSUM, TC "Incoming ICMPv4 error packet's checksum was incorrect."), DEFINE_STAT(JSTAT46_UNTRANSLATABLE_DEST_UNREACH, TC "Packet was an ICMPv4 Destination Unreachable error message, and its code has no ICMPv6 counterpart."), DEFINE_STAT(JSTAT46_UNTRANSLATABLE_PARAM_PROB, TC "Packet was an ICMPv4 Parameter Problem error message, and its code has no ICMPv6 counterpart."), DEFINE_STAT(JSTAT46_UNTRANSLATABLE_PARAM_PROBLEM_PTR, TC "Packet was an ICMv4 Parameter Problem error message, but its pointer was untranslatable."), DEFINE_STAT(JSTAT46_TTL, TC "IPv4 packet's TTL field was 0 or 1."), DEFINE_STAT(JSTAT46_SRC_ROUTE, TC "Packet had an unexpired Source Route. (Untranslatable.)"), DEFINE_STAT(JSTAT46_FRAGMENTED_ZERO_CSUM, TC "IPv4 packet's UDP checksum was zero. Jool dropped the packet because --amend-udp-checksum-zero was disabled, and/or the packet was fragmented.\n" "(In IPv4, the UDP checksum is optional, but in IPv6 it is not. Because stateless translators do not collect fragments, they cannot compute packet-wide checksums from scratch. Zero-checksum UDP fragments are thus untranslatable.)"), DEFINE_STAT(JSTAT_FAILED_ROUTES, TC "The translated packet could not be routed; the kernel's routing function errored. Cause is unknown. (It usually happens because the packet's destination address could not be found in the routing table.)"), DEFINE_STAT(JSTAT_PKT_TOO_BIG, TC "Translated IPv4 packet did not fit in the outgoing interface's MTU. A Packet Too Big or Fragmentation Needed ICMP error was returned to the client."), DEFINE_STAT(JSTAT_DST_OUTPUT, TC "Translation was successful but the kernel's packet dispatch function (dst_output()) returned nonzero."), DEFINE_STAT(JSTAT_ICMP6ERR_SUCCESS, "ICMPv6 errors (created by Jool, not translated) sent successfully."), DEFINE_STAT(JSTAT_ICMP6ERR_FAILURE, "ICMPv6 errors (created by Jool, not translated) that could not be sent."), DEFINE_STAT(JSTAT_ICMP4ERR_SUCCESS, "ICMPv4 errors (created by Jool, not translated) sent successfully."), DEFINE_STAT(JSTAT_ICMP4ERR_FAILURE, "ICMPv4 errors (created by Jool, not translated) that could not be sent."), DEFINE_STAT(JSTAT_UNKNOWN, TC "Unknown error. Likely a programming error."), }; #define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0])) static struct jool_result validate_stats(void) { unsigned int i; if (ARRAY_SIZE(jstat_metadatas) != __JSTAT_MAX) goto failure; for (i = 0; i < __JSTAT_MAX; i++) { if (i != jstat_metadatas[i].id) goto failure; } return result_success(); failure: return result_from_error( -EINVAL, "Programming error: The jstat_metadatas array does not match the jool_stat_id enum." ); } struct query_args { stats_foreach_cb cb; void *args; }; static struct jool_result stats_query_response(struct jool_response *response, void *args) { size_t expected_len; __u64 *values = response->payload; struct jstat stat; struct query_args *qargs = args; unsigned int i; struct jool_result result; expected_len = __JSTAT_MAX * sizeof(*values); if (expected_len != response->payload_len) { return result_from_error( -EINVAL, "Jool's response has a bogus length. (expected %zu, got %zu).", expected_len, response->payload_len ); } for (i = 0; i < __JSTAT_MAX; i++) { stat.meta = jstat_metadatas[i]; stat.value = values[i]; result = qargs->cb(&stat, qargs->args); if (result.error) return result; } return result_success(); } struct jool_result stats_foreach(struct jool_socket *sk, char *iname, stats_foreach_cb cb, void *args) { struct query_args qargs; struct request_hdr request; struct jool_result result; result = validate_stats(); if (result.error) return result; qargs.cb = cb; qargs.args = args; init_request_hdr(&request, sk->xt, MODE_STATS, OP_FOREACH, false); return netlink_request(sk, iname, &request, sizeof(request), stats_query_response, &qargs); } jool-4.0.7/src/usr/nl/stats.h0000664000175000017500000000073313576225301012737 00000000000000#ifndef SRC_USR_NL_STATS_H_ #define SRC_USR_NL_STATS_H_ #include "common/stats.h" #include "jool_socket.h" struct jstat_metadata { enum jool_stat_id id; char *name; char *doc; }; struct jstat { struct jstat_metadata meta; __u64 value; }; typedef struct jool_result (*stats_foreach_cb)(struct jstat const *stat, void *args); struct jool_result stats_foreach(struct jool_socket *sk, char *iname, stats_foreach_cb cb, void *args); #endif /* SRC_USR_NL_STATS_H_ */ jool-4.0.7/src/usr/nl/json.h0000664000175000017500000000050713576225301012551 00000000000000#ifndef SRC_USR_NL_JSON_H_ #define SRC_USR_NL_JSON_H_ #include "common/config.h" #include "usr/nl/jool_socket.h" struct jool_result json_parse(struct jool_socket *sk, xlator_type xt, char *iname, char *file_name, bool force); struct jool_result json_get_iname(char *file_name, char **out); #endif /* SRC_USR_NL_JSON_H_ */ jool-4.0.7/src/usr/nl/address.c0000664000175000017500000000365413576225301013226 00000000000000#include "address.h" #include #define HDR_LEN sizeof(struct request_hdr) #define PAYLOAD_LEN sizeof(struct request_addrxlat) static struct jool_result query_response_cb(size_t expected_len, struct jool_response *response, void *args) { if (expected_len != response->payload_len) { return result_from_error( -EINVAL, "Jool's response has a bogus length. (expected %zu, got %zu).", expected_len, response->payload_len ); } memcpy(args, response->payload, expected_len); return result_success(); } static struct jool_result query64_response_cb(struct jool_response *response, void *args) { return query_response_cb(sizeof(struct result_addrxlat64), response, args); } static struct jool_result query46_response_cb(struct jool_response *response, void *args) { return query_response_cb(sizeof(struct result_addrxlat46), response, args); } struct jool_result address_query64(struct jool_socket *sk, char *iname, struct in6_addr *addr, struct result_addrxlat64 *result) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; struct request_addrxlat *payload = (struct request_addrxlat *) (request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_ADDRESS, OP_TEST, false); payload->direction = 64; payload->addr.v6 = *addr; return netlink_request(sk, iname, request, sizeof(request), query64_response_cb, result); } struct jool_result address_query46(struct jool_socket *sk, char *iname, struct in_addr *addr, struct result_addrxlat46 *result) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; struct request_addrxlat *payload = (struct request_addrxlat *) (request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_ADDRESS, OP_TEST, false); payload->direction = 46; payload->addr.v4 = *addr; return netlink_request(sk, iname, request, sizeof(request), query46_response_cb, result); } jool-4.0.7/src/usr/nl/wrapper-config.c0000664000175000017500000000003313576225301014510 00000000000000#include "common/config.c" jool-4.0.7/src/usr/nl/session.h0000664000175000017500000000057213576225301013265 00000000000000#ifndef SRC_USR_NL_SESSION_H_ #define SRC_USR_NL_SESSION_H_ #include "common/config.h" #include "jool_socket.h" typedef struct jool_result (*session_foreach_cb)( struct session_entry_usr *entry, void *args); struct jool_result session_foreach(struct jool_socket *sk, char *iname, l4_protocol proto, session_foreach_cb cb, void *args); #endif /* SRC_USR_NL_SESSION_H_ */ jool-4.0.7/src/usr/nl/eamt.c0000664000175000017500000001207413576225301012523 00000000000000#include "eamt.h" #include #include "jool_socket.h" #define HDR_LEN sizeof(struct request_hdr) #define PAYLOAD_LEN sizeof(union request_eamt) struct foreach_args { eamt_foreach_cb cb; void *args; union request_eamt *request; }; static struct jool_result eam_foreach_response(struct jool_response *response, void *arg) { struct eamt_entry *entries = response->payload; struct foreach_args *args = arg; __u16 entry_count, i; struct jool_result result; entry_count = response->payload_len / sizeof(*entries); for (i = 0; i < entry_count; i++) { result = args->cb(&entries[i], args->args); if (result.error) return result; } args->request->foreach.prefix4_set = response->hdr->pending_data; if (entry_count > 0) { struct eamt_entry *last = &entries[entry_count - 1]; args->request->foreach.prefix4 = last->prefix4; } return result_success(); } struct jool_result eamt_foreach(struct jool_socket *sk, char *iname, eamt_foreach_cb cb, void *_args) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_eamt *payload = (union request_eamt *)(request + HDR_LEN); struct foreach_args args; struct jool_result result; init_request_hdr(hdr, sk->xt, MODE_EAMT, OP_FOREACH, false); payload->foreach.prefix4_set = false; memset(&payload->foreach.prefix4, 0, sizeof(payload->foreach.prefix4)); args.cb = cb; args.args = _args; args.request = payload; do { result = netlink_request(sk, iname, request, sizeof(request), eam_foreach_response, &args); if (result.error) return result; } while (payload->foreach.prefix4_set); return result_success(); } struct jool_result eamt_add(struct jool_socket *sk, char *iname, struct ipv6_prefix *p6, struct ipv4_prefix *p4, bool force) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_eamt *payload = (union request_eamt *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_EAMT, OP_ADD, force); payload->add.prefix6 = *p6; payload->add.prefix4 = *p4; return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } struct jool_result eamt_rm(struct jool_socket *sk, char *iname, struct ipv6_prefix *p6, struct ipv4_prefix *p4) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_eamt *payload = (union request_eamt *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_EAMT, OP_REMOVE, false); if (p6) { payload->rm.prefix6_set = true; memcpy(&payload->rm.prefix6, p6, sizeof(*p6)); } else { payload->rm.prefix6_set = false; memset(&payload->rm.prefix6, 0, sizeof(payload->rm.prefix6)); } if (p4) { payload->rm.prefix4_set = true; memcpy(&payload->rm.prefix4, p4, sizeof(*p4)); } else { payload->rm.prefix4_set = false; memset(&payload->rm.prefix4, 0, sizeof(payload->rm.prefix4)); } return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } struct jool_result eamt_flush(struct jool_socket *sk, char *iname) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; init_request_hdr(hdr, sk->xt, MODE_EAMT, OP_FLUSH, false); return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } static struct jool_result bad_len(size_t expected, size_t actual) { return result_from_error( -EINVAL, "Jool's response has a bogus length. (expected %zu, got %zu).", expected, actual ); } static struct jool_result eam_query64_response(struct jool_response *response, void *args) { if (response->payload_len < sizeof(struct in_addr)) return bad_len(sizeof(struct in_addr), response->payload_len); *((struct in_addr *)args) = *((struct in_addr *)response->payload); return result_success(); } struct jool_result eamt_query_v6(struct jool_socket *sk, char *iname, struct in6_addr *in, struct in_addr *out) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_eamt *payload = (union request_eamt *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_EAMT, OP_TEST, false); payload->test.proto = 6; payload->test.addr.v6 = *in; return netlink_request(sk, iname, request, sizeof(request), eam_query64_response, out); } static struct jool_result eam_query46_response(struct jool_response *response, void *args) { if (response->payload_len < sizeof(struct in6_addr)) return bad_len(sizeof(struct in6_addr), response->payload_len); *((struct in6_addr *)args) = *((struct in6_addr *)response->payload); return result_success(); } struct jool_result eamt_query_v4(struct jool_socket *sk, char *iname, struct in_addr *in, struct in6_addr *out) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_eamt *payload = (union request_eamt *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_EAMT, OP_TEST, false); payload->test.proto = 4; payload->test.addr.v4 = *in; return netlink_request(sk, iname, request, sizeof(request), eam_query46_response, out); } jool-4.0.7/src/usr/nl/bib.h0000664000175000017500000000120313576225301012326 00000000000000#ifndef SRC_USR_NL_BIB_H_ #define SRC_USR_NL_BIB_H_ #include "common/config.h" #include "jool_socket.h" typedef struct jool_result (*bib_foreach_cb)(struct bib_entry_usr *, void *); struct jool_result bib_foreach(struct jool_socket *sk, char *iname, l4_protocol proto, bib_foreach_cb cb, void *args); struct jool_result bib_add(struct jool_socket *sk, char *iname, struct ipv6_transport_addr *a6, struct ipv4_transport_addr *a4, l4_protocol proto); struct jool_result bib_rm(struct jool_socket *sk, char *iname, struct ipv6_transport_addr *a6, struct ipv4_transport_addr *a4, l4_protocol proto); #endif /* SRC_USR_NL_BIB_H_ */ jool-4.0.7/src/usr/nl/pool4.c0000664000175000017500000000600513576225301012627 00000000000000#include "pool4.h" #include #include "jool_socket.h" #define HDR_LEN sizeof(struct request_hdr) #define PAYLOAD_LEN sizeof(union request_pool4) struct foreach_args { pool4_foreach_cb cb; void *args; union request_pool4 *request; }; static struct jool_result pool4_foreach_response(struct jool_response *response, void *arg) { struct pool4_sample *samples = response->payload; unsigned int sample_count, i; struct foreach_args *args = arg; struct jool_result result; sample_count = response->payload_len / sizeof(*samples); for (i = 0; i < sample_count; i++) { result = args->cb(&samples[i], args->args); if (result.error) return result; } args->request->foreach.offset_set = response->hdr->pending_data; if (sample_count > 0) args->request->foreach.offset = samples[sample_count - 1]; return result_success(); } struct jool_result pool4_foreach(struct jool_socket *sk, char *iname, l4_protocol proto, pool4_foreach_cb cb, void *_args) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_pool4 *payload = (union request_pool4 *)(request + HDR_LEN); struct foreach_args args; struct jool_result result; init_request_hdr(hdr, sk->xt, MODE_POOL4, OP_FOREACH, false); payload->foreach.proto = proto; payload->foreach.offset_set = false; memset(&payload->foreach.offset, 0, sizeof(payload->foreach.offset)); args.cb = cb; args.args = _args; args.request = payload; do { result = netlink_request(sk, iname, &request, sizeof(request), pool4_foreach_response, &args); if (result.error) return result; } while (args.request->foreach.offset_set); return result_success(); } struct jool_result pool4_add(struct jool_socket *sk, char *iname, struct pool4_entry_usr *entry) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_pool4 *payload = (union request_pool4 *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_POOL4, OP_ADD, false); payload->add = *entry; return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } struct jool_result pool4_rm(struct jool_socket *sk, char *iname, struct pool4_entry_usr *entry, bool quick) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_pool4 *payload = (union request_pool4 *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_POOL4, OP_REMOVE, false); payload->rm.entry = *entry; payload->rm.quick = quick; return netlink_request(sk, iname, request, sizeof(request), NULL, NULL); } struct jool_result pool4_flush(struct jool_socket *sk, char *iname, bool quick) { unsigned char request[HDR_LEN + PAYLOAD_LEN]; struct request_hdr *hdr = (struct request_hdr *)request; union request_pool4 *payload = (union request_pool4 *)(request + HDR_LEN); init_request_hdr(hdr, sk->xt, MODE_POOL4, OP_FLUSH, false); payload->flush.quick = quick; return netlink_request(sk, iname, &request, sizeof(request), NULL, NULL); } jool-4.0.7/src/usr/nat64/0000775000175000017500000000000013576247347012046 500000000000000jool-4.0.7/src/usr/nat64/main-nat64.c0000664000175000017500000000022413576225301013770 00000000000000#include "usr/argp/main.h" #include "usr/argp/xlator_type.h" int main(int argc, char **argv) { xt_set(XT_NAT64); return jool_main(argc, argv); } jool-4.0.7/src/usr/nat64/jool.80000664000175000017500000002265613576244253013026 00000000000000.\" Manpage for jool's userspace app. .\" Report bugs to jool@nic.mx. .TH jool 8 2019-12-17 v4.0.7 "NAT64 Jool's Userspace Client" .SH NAME jool - Interact with NAT64 Jool (the kernel module). .SH DESCRIPTION Sends commands and requests to NAT64 Jool. .br NAT64 Jool is a kernel module you load into a Linux kernel. It implements RFC 6146. .SH AVAILABILITY Linux is the only OS in which this program makes sense. .br Kernels 3.13 and up. .SH SYNTAX .RI "jool [" "] instance (" .br display .br [--csv] .br [--no-headers] .br | add .br .I [] .br (--netfilter | --iptables) .br .RI " --pool6 " .br | remove .br .I [] .br | flush .br .RI " | " .br ) .P .RI "jool [" "] stats (" .br display .br [--csv] .br [--no-headers] .br [--all] .br [--explain] .br .RI " | " .br ) .P .RI "jool [" "] global (" .br display .br [--csv] .br [--no-headers] .br | update .br .I .br .RI " | " .br ) .P .RI "jool [" "] pool4 (" .br display .br [--csv] .br [--no-headers] .br [--tcp | --udp | --icmp] .br | add .br .I .br [--tcp | --udp | --icmp] .br .RI " [--mark " "]" .br .RI " [--max-iterations (auto | infinity | " ")]" .br [--force] .br | remove .br .I .br [--tcp | --udp | --icmp] .br .RI " [--mark " "]" .br [--quick] .br | flush .br [--quick] .br .RI " | " .br ) .P .RI "jool [" "] bib (" .br display .br [--csv] .br [--no-headers] .br [--tcp | --udp | --icmp] .br [--numeric] .br | add .br .I .br .I .br [--tcp | --udp | --icmp] .br | remove .br .I [] .br .I [] .br [--tcp | --udp | --icmp] .br .RI " | " .br ) .P .RI "jool [" "] session (" .br display .br [--csv] .br [--no-headers] .br [--tcp | --udp | --icmp] .br [--numeric] .br .RI " | " .br ) .P .RI "jool [" "] file (" .br .RI " handle " .br .RI " | " .br ) .P .IR " := (" " | --instance " " | --file " ")" .P .IR " := (--help | --usage | --version)" .SH OPTIONS .SS Modes and Operations .IP "instance display" Show all instances from all namespaces. .IP "instance add" Create a new instance. .IP "instance remove" Drop an existing instance. .IP "instance flush" Drop all instances from the current namespace. .IP "stats display" Show internal counters. .IP "global display" Show the current values of the instance's tweakable internal variables. .IP "global update" Tweak one of the instance's internal variables. .IP "pool4 display" Show one of the tables from the IPv4 transport address pool. .br (Each protocol has one table.) .IP "pool4 add" Upload an entry to the IPv4 transport address pool. .IP "pool4 remove" Drop transport addresses from the IPv4 transport address pool. .IP "pool4 flush" Empty the IPv4 transport address pool. .IP "bib display" Show one of the BIB tables. .br (Each protocol has one table.) .IP "bib add" Add a static entry to the BIB. .IP "bib remove" Remove an entry (static or otherwise) from the BIB. .IP "session display" Show one of the the session tables. .br (Each protocol has one table.) .IP "file handle" Parse all the configuration from a JSON file. .br Create instance if it doesn't exist, update if it does. .SS Flags .IP "--instance " Name of the instance you want to interact with. .br It's an ASCII string, 15 characters max. Defaults to 'default'. .IP "--file " JSON file which contains the name of the instance you want to interact with. .br Same JSON structure as the one from atomic configuration. .IP --tcp Apply the operation on the TCP table. .br (This is the default table.) .IP --udp Apply the operation on the UDP table. .IP --icmp Apply the operation on the ICMP table. .IP --csv Output in CSV table format. .IP --no-headers Do not print table headers. (Nor footer, if applies.) .IP --netfilter Sit the instance on top of the Netfilter framework. .IP --iptables Sit the instance on top of the iptables framework. .IP "--pool6 " Contents of the new instance's IPv6 pool. .br The format is 'PREFIX_ADDRESS[/PREFIX_LENGTH]'. .IP --all Show all the counters. .br (Otherwise, only the nonzero ones are printed.) .IP --explain Show a description of each counter. .IP "--mark " The pool4 entry will only be allowed to mask packets carrying this mark. .br It's a 32-bit unsigned integer. Defaults to zero. .IP "--max-iterations (auto | infinity | )" Maximum number of times the mask-finding algorithm will be allowed to iterate. .br .IR auto " computes a recommended default," .br .IR infinity " removes the iteration cap," .br .IR " (unsigned 32-bit integer) sets the actual number." .IP --force Apply operation even if certain validations fail. .IP --quick Do not remove orphaned BIB and session entries. .IP --numeric Do not query the DNS. .SS Other Arguments .IP " " Name of the variable you want to edit (see 'Globals' section), and its new value. .IP " " Descriptor of the range of transport addresses you want to add or remove from the pool. .br is a range of ports; it should follow the format '[-]'. .br The command will add or remove addresses # to #. .IP ", " Transport addresses that shape the BIB entry you want to add or remove. .br The format is 'IPV6_ADDRESS#PORT' and 'IPV4_ADDRESS#PORT', respectively. .IP Name of the instance you want to add or remove. .br If --instance or --file were included in , then the instance names must match. .IP Path to a JSON file. .SS Globals .IP "manually-enabled " Enable or disable the instance. .IP "zeroize-traffic-class " Always set the IPv6 header's 'Traffic Class' field as zero? .br Otherwise copy from IPv4 header's 'TOS'. .IP "override-tos " Override the IPv4 header's 'TOS' field as --tos? .br Otherwise copy from IPv6 header's 'Traffic Class'. .IP "tos " Value to override TOS as (only when override-tos is ON) .IP "mtu-plateaus " Set the list of plateaus for ICMPv4 Fragmentation Neededs with MTU unset. .IP "address-dependent-filtering " Behave as (address-)restricted-cone NAT? .br Otherwise behave as full-cone NAT. .IP "drop-icmpv6-info " Filter ICMPv6 Informational packets? .IP "drop-externally-initiated-tcp " Drop externally initiated TCP connections? .IP "tcp-est-timeout " Set the TCP established session lifetime. .IP "tcp-trans-timeout " Set the TCP transitory session lifetime. .IP "udp-timeout " Set the UDP session lifetime. .IP "icmp-timeout " Set the ICMP session lifetime. .IP "maximum-simultaneous-opens " Set the maximum allowable 'simultaneous' Simultaneos Opens of TCP connections. .IP "source-icmpv6-errors-better " Translate source addresses directly on 4-to-6 ICMP errors? .IP "f-args " Defines the arguments that will be sent to F(). .br (F() is defined by algorithm 3 of RFC 6056.) .br - First (leftmost) bit is source address. .br - Second bit is source port. .br - Third bit is destination address. .br - Fourth (rightmost) bit is destination port. .IP "handle-rst-during-fin-rcv " Use transitory timer when RST is received during the V6 FIN RCV or V4 FIN RCV states? .IP "logging-bib " Log BIBs as they are created and destroyed? .IP "logging-session " Log sessions as they are created and destroyed? .IP "ss-enabled " Enable Session Synchronization? .IP "ss-flush-asap " Try to synchronize sessions as soon as possible? .IP "ss-flush-deadline " Inactive milliseconds after which to force a session sync. .IP "ss-capacity " Maximim number of queuable entries. .IP "ss-max-payload " Maximum amount of bytes joold should send per packet. .SH EXAMPLES Create a new instance named "Example": .br jool instance add Example --iptables --pool6 64:ff9b::/96 .P Add addresses 192.0.2.10#1024 to 192.0.2.10#2048 to the IPv4/TCP pool: .br jool -i Example pool4 add 192.0.2.10 1024-2048 --tcp .P Print the TCP table of the BIB: .br jool -i Example bib display .P Add an UDP binding to the BIB: .br jool -i Example bib add 192.0.2.10#2000 1::1#2000 --tcp .P Remove the binding from the BIB: .br jool -i Example bib remove 192.0.2.10#2000 --tcp .P Print the TCP session table: .br jool -i Example session display .P Print the global configuration values: .br jool -i Example global display .P Update some global configuration value: .br jool -i Example global update address-dependent-filtering ON .SH NOTES TRUE, FALSE, 1, 0, YES, NO, ON and OFF are all valid booleans. You can mix case too. .SH EXIT STATUS Zero on success, non-zero on failure. .SH AUTHOR NIC Mexico & ITESM .SH REPORTING BUGS Our issue tracker is https://github.com/NICMx/Jool/issues. If you want to mail us instead, use jool@nic.mx. .SH COPYRIGHT Copyright 2019 NIC Mexico. .br License: GPLv2 (GNU GPL version 2) .br This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. .SH SEE ALSO https://www.jool.mx .br https://www.jool.mx/en/documentation.html jool-4.0.7/src/usr/nat64/jool.bash0000664000175000017500000000176113507461072013560 00000000000000_jool() { # Given the following incomplete command: # # $ jool_siit global update m # # This function (_jool()) gets called when the user hits tab. # It is expected to place the autocompletion candidates (in this # case, `manually-enabled`, `maximum-simultaneous-opens` and # `mtu-plateaus`) in the COMPREPLY variable. # # COMP_WORDS is an array that contains all the tokens the user # has written so far. (Hence `(jool global update m)`.) # COMP_CWORD is the index of the "current" token. (Hence `3`.) # # `compgen -W -- ` prints the elements from `a` that # match the `b` prefix. # # "{$ARRAY[*]:1}" means "all of the elements of the array, # except for the first one." # # I got all of this from https://debian-administration.org/article/317 # ("An introduction to bash completion: part 2") CANDIDATES=$(${COMP_WORDS[0]} autocomplete $COMP_CWORD ${COMP_WORDS[*]:1}) COMPREPLY=($(compgen -W "$CANDIDATES" -- ${COMP_WORDS[COMP_CWORD]})) } complete -o default -F _jool jool jool-4.0.7/src/usr/nat64/Makefile.in0000664000175000017500000006352613576247344014044 00000000000000# Makefile.in generated by automake 1.15.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2017 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # Note to myself: documentation tends to call these "PROGRAMS" "targets". # "jool" is a "target". 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/** * Called when user execs "iptables -m jool -h" */ static void jool_tg_help(void) { printf("jool target options:\n"); printf("[!] --" OPTNAME_INAME " Name of the Jool instance that should handle this rule's packets.\n"); } static void jool_tg_init(struct xt_entry_target *target) { struct target_info *info = (struct target_info *)target->data; strcpy(info->iname, INAME_DEFAULT); info->type = IPTABLES_MODULE_TYPE; } /* * TODO duplicate code (src/common/config.c) * This bug is actually the tip of an iceberg. The actual problem is that I * don't know how to make the iptables shared objects depend on libjoolnl. * (Which is perhaps a consequence of me not knowing how to turn the iptables * Makefile into autotools makefiles. See the large comment in the Makefile * adjacent to this file.) */ int iname_validate(const char *iname, bool allow_null) { unsigned int i; if (!iname) return allow_null ? 0 : -EINVAL; for (i = 0; i < INAME_MAX_LEN; i++) { if (iname[i] == '\0') return 0; if (iname[i] < 32) /* "if not printable" */ break; } return -EINVAL; } /* * Called once for every argument the user sends the rule upon creation. */ static int jool_tg_parse(int c, char **argv, int invert, unsigned int *flags, const void *entry, struct xt_entry_target **target) { struct target_info *info = (struct target_info *)(*target)->data; int error; if (c != 'i') return false; error = iname_validate(optarg, false); if (error) { fprintf(stderr, INAME_VALIDATE_ERRMSG "\n", INAME_MAX_LEN - 1); return error; } strcpy(info->iname, optarg); return true; } /** * Called when user execs "iptables -L" */ static void jool_tg_print(const void *ip, const struct xt_entry_target *target, int numeric) { struct target_info *info = (struct target_info *)target->data; printf(" instance:%s", info->iname); } /** * Called when user execs "iptables-save" */ static void jool_tg_save(const void *ip, const struct xt_entry_target *target) { struct target_info *info = (struct target_info *)target->data; printf(" --" OPTNAME_INAME " %s ", info->iname); } static struct xtables_target targets[] = { { .version = XTABLES_VERSION, .name = IPTABLES_MODULE_NAME, .revision = 0, .family = PF_INET6, .size = XT_ALIGN(sizeof(struct target_info)), .userspacesize = XT_ALIGN(sizeof(struct target_info)), .help = jool_tg_help, .init = jool_tg_init, .parse = jool_tg_parse, .print = jool_tg_print, .save = jool_tg_save, .extra_opts = jool_tg_opts, }, { .version = XTABLES_VERSION, .name = IPTABLES_MODULE_NAME, .revision = 0, .family = PF_INET, .size = XT_ALIGN(sizeof(struct target_info)), .userspacesize = XT_ALIGN(sizeof(struct target_info)), .help = jool_tg_help, .init = jool_tg_init, .parse = jool_tg_parse, .print = jool_tg_print, .save = jool_tg_save, .extra_opts = jool_tg_opts, } }; static void _init(void) { xtables_register_targets(targets, sizeof(targets) / sizeof(targets[0])); } jool-4.0.7/src/usr/iptables/libxt_JOOL_SIIT.c0000664000175000017500000000021413576247347015573 00000000000000#include "common/config.h" #define IPTABLES_MODULE_NAME IPTABLES_SIIT_MODULE_NAME #define IPTABLES_MODULE_TYPE XT_SIIT #include "common.c" jool-4.0.7/src/usr/iptables/Makefile0000664000175000017500000000332213576247347014275 00000000000000# Confession time: # # I haven't the slightliest clue how to convert this Makefile into a proper # Makefile.am. By default, libtool (from the autotools) creates a lot of # auxiliary files, and they don't seem to play well with iptables. I tried # finding example iptables projects that use autotools, and I couldn't find # anything. (Part of the problem is that I don't know how to look for them, or # whether they exist.) # # I don't even know if it can be done to begin with, because autotools is # supposed to be a Unix standard thing, while iptables is a Linux-specific # thing. If the autotools make too many assumptions regarding the use of these # shared objects, I suppose it might render them uniptablable. # # So I don't know if the problem can be fixed, but if it does, I'll probably # need to read the entire libtool manual to figure it out. But it's like a # million pages long. I don't even know what I'm supposed to be looking for: # https://www.gnu.org/software/libtool/manual/libtool.html # TODO But I mean, I should probably read it anyway. DEFAULT_CFLAGS = -Wall -pedantic -std=gnu11 -O2 DEFAULT_CFLAGS += -I../.. DEFAULT_CFLAGS += $(shell pkg-config xtables --cflags) XTABLES_SO_DIR = $(shell pkg-config xtables --variable xtlibdir) all: make libxt_JOOL_SIIT.so; make libxt_JOOL.so; install: mkdir -p ${DESTDIR}${XTABLES_SO_DIR} cp *.so ${DESTDIR}${XTABLES_SO_DIR} uninstall: rm -f ${DESTDIR}${XTABLES_SO_DIR}/libxt_JOOL_SIIT.so rm -f ${DESTDIR}${XTABLES_SO_DIR}/libxt_JOOL.so lib%.so: lib%.o ${CC} -shared -fPIC ${LDFLAGS} -o $@ $^; lib%.o: lib%.c ${CC} ${DEFAULT_CFLAGS} ${CFLAGS} -D_INIT=lib$*_init -fPIC -c -o $@ $<; clean distclean: rm -f *.so distdir: mkdir -p ${distdir} cp *.c *.man Makefile ${distdir} jool-4.0.7/src/usr/iptables/libxt_JOOL_SIIT.man0000664000175000017500000000040113576247347016122 00000000000000.TP [\fB!\fP] \fB--instance-name\fP \fIstring\fP Name of the *iptables* SIIT Jool instance to send the packets to. Defaults to "default". .PP Sends packets to some SIIT Jool instance in the current namespace. The instance needs to be configured separately. jool-4.0.7/src/usr/iptables/libxt_JOOL.man0000664000175000017500000000040313576247347015274 00000000000000.TP [\fB!\fP] \fB--instance-name\fP \fIstring\fP Name of the *iptables* NAT64 Jool instance to send the packets to. Defaults to "default". .PP Sends packets to some NAT64 Jool instance in the current namespace. The instance needs to be configured separately. jool-4.0.7/src/common/0000775000175000017500000000000013576247347011571 500000000000000jool-4.0.7/src/common/types.h0000664000175000017500000001031013576225301013003 00000000000000#ifndef SRC_COMMON_TYPES_H_ #define SRC_COMMON_TYPES_H_ /** * @file * The NAT64's core data types. Structures used all over the code. * * Both the kernel module and the userspace application can see this file. */ #include #ifdef __KERNEL__ #include #include #else #include #include #endif /** Maximum storable value on a __u8. */ #define MAX_U8 0xFFU /** Maximum storable value on a __u16. */ #define MAX_U16 0xFFFFU /** Maximum storable value on a __u32. */ #define MAX_U32 0xFFFFFFFFU /** Maximum storable value on a __u64. */ #define MAX_U64 0xFFFFFFFFFFFFFFFFU /** * Network (layer 3) protocols Jool is supposed to support. * We do not use PF_INET, PF_INET6, AF_INET or AF_INET6 because I want the * compiler to pester me during defaultless `switch`s. Also, the zero-based * index is convenient in the Translate Packet module. */ typedef enum l3_protocol { /** RFC 2460. */ L3PROTO_IPV6 = 0, /** RFC 791. */ L3PROTO_IPV4 = 1, } l3_protocol; /** Returns a string version of "proto". */ const char *l3proto_to_string(l3_protocol proto); /** * Transport (layer 4) protocols Jool is supposed to support. * We do not use IPPROTO_TCP and friends because I want the compiler to pester * me during defaultless `switch`s. Also, the zero-based index is convenient in * the Translate Packet module. */ typedef enum l4_protocol { /** Signals the presence of a TCP header. */ L4PROTO_TCP = 0, /** Signals the presence of a UDP header. */ L4PROTO_UDP = 1, /** * Signals the presence of a ICMP header. Whether the header is ICMPv4 * or ICMPv6 never matters. * We know that ICMP is not a transport protocol, but for all intents * and purposes, it behaves exactly like one in IP translation. */ L4PROTO_ICMP = 2, /** * SIIT Jool should try to translate other protocols in a best effort * basis. * It will just copy layer 4 as is, and hope there's nothing to update. * Because of checksumming nonsense and whatnot, this might usually * fail, but whatever. */ L4PROTO_OTHER = 3, #define L4_PROTO_COUNT 4 } l4_protocol; /** Returns a string version of "proto". */ const char *l4proto_to_string(l4_protocol proto); l4_protocol str_to_l4proto(char *str); /** * A layer-3 (IPv4) identifier attached to a layer-4 identifier. * Because they're paired all the time in this project. */ struct ipv4_transport_addr { /** The layer-3 identifier. */ struct in_addr l3; /** The layer-4 identifier (Either the TCP/UDP port or the ICMP id). */ __u16 l4; }; /** * A layer-3 (IPv6) identifier attached to a layer-4 identifier. * Because they're paired all the time in this project. */ struct ipv6_transport_addr { /** The layer-3 identifier. */ struct in6_addr l3; /** The layer-4 identifier (Either the TCP/UDP port or the ICMP id). */ __u16 l4; }; struct taddr4_tuple { struct ipv4_transport_addr src; struct ipv4_transport_addr dst; }; /** * The network component of a IPv4 address. */ struct ipv4_prefix { /** IPv4 prefix. */ struct in_addr addr; /** Number of bits from "address" which represent the network. */ __u8 len; }; /** * The network component of a IPv6 address. */ struct ipv6_prefix { /** IPv6 prefix. The suffix is most of the time assumed to be zero. */ struct in6_addr addr; /** Number of bits from "address" which represent the network. */ __u8 len; }; struct port_range { __u16 min; __u16 max; }; struct ipv4_range { struct ipv4_prefix prefix; struct port_range ports; }; struct pool4_range { struct in_addr addr; struct port_range ports; }; struct pool4_sample { __u32 mark; __u32 iterations; __u8 iterations_flags; __u8 proto; struct pool4_range range; }; bool port_range_equals(const struct port_range *r1, const struct port_range *r2); bool port_range_touches(const struct port_range *r1, const struct port_range *r2); bool port_range_contains(const struct port_range *range, __u16 port); unsigned int port_range_count(const struct port_range *range); void port_range_fuse(struct port_range *r1, const struct port_range *r2); bool pool4_range_equals(struct pool4_range *r1, struct pool4_range *r2); bool pool4_range_touches(const struct pool4_range *r1, const struct pool4_range *r2); #endif /* SRC_COMMON_TYPES_H */ jool-4.0.7/src/common/config.c0000664000175000017500000000222213576225301013102 00000000000000#include "common/config.h" #ifndef __KERNEL__ #include #endif void init_request_hdr(struct request_hdr *hdr, xlator_type xt, enum config_mode mode, enum config_operation operation, bool force) { hdr->magic[0] = 'j'; hdr->magic[1] = 'o'; hdr->magic[2] = 'o'; hdr->magic[3] = 'l'; hdr->xt = xt; hdr->castness = 'u'; hdr->force = force; hdr->slop1 = 0; hdr->version = htonl(xlat_version()); hdr->mode = mode; hdr->operation = operation; hdr->slop2 = 0; } /* TODO duplicate code (src/usr/iptables/common.c) */ int iname_validate(const char *iname, bool allow_null) { unsigned int i; if (!iname) return allow_null ? 0 : -EINVAL; for (i = 0; i < INAME_MAX_LEN; i++) { if (iname[i] == '\0') return 0; if (iname[i] < 32) /* "if not printable" */ break; } return -EINVAL; } int xt_validate(xlator_type xt) { return (xt == XT_SIIT || xt == XT_NAT64) ? 0 : -EINVAL; } int xf_validate(xlator_framework xf) { return (xf == XF_NETFILTER || xf == XF_IPTABLES) ? 0 : -EINVAL; } xlator_type xlator_flags2xt(xlator_flags flags) { return flags & 0x03; } xlator_framework xlator_flags2xf(xlator_flags flags) { return flags & 0x0C; } jool-4.0.7/src/common/constants.h0000664000175000017500000000756713576225301013677 00000000000000#ifndef SRC_COMMON_CONSTANTS_H_ #define SRC_COMMON_CONSTANTS_H_ /** * @file * General purpose #defines, intended to minimize use of numerical constants * elsewhere in the code. */ /* -- Timeouts, defined by RFC 6146, section 4. */ /** * Minimum allowable session lifetime for UDP bindings, in seconds. */ #define UDP_MIN (2 * 60) /** * Defined in the RFC as the minimum allowable default value for the session * lifetime of UDP bindings, in seconds. We use it as the actual default value. */ #define UDP_DEFAULT (5 * 60) /** * Established connection idle timeout (in seconds). * In other words, the tolerance time for established and healthy TCP sessions. * If a connection remains idle for longer than this, then we expect it to * terminate soon. */ #define TCP_EST (2 * 60 * 60) /** * Transitory connection idle timeout (in seconds). * In other words, the timeout of TCP sessions which are expected to terminate * soon. */ #define TCP_TRANS (4 * 60) /** * Timeout of TCP sessions started from v4 which we're skeptical as to whether * they are going to make it to the established state. * Also the time a user has to manage a hole punch through Jool. * Measured in in seconds. * This value cannot be configured from the userspace app (this is on purpose). */ #define TCP_INCOMING_SYN (6) /** Default session lifetime for ICMP bindings, in seconds. */ #define ICMP_DEFAULT (1 * 60) /* * The timers will never sleep less than this amount of jiffies. This is because * I don't think we need to interrupt the kernel too much. * * 255 stands for TVR_SIZE - 1 (The kernel doesn't export TVR_SIZE). * Why that value? It's the maximum we can afford without cascading the timer * wheel when CONFIG_BASE_SMALL is false (https://lkml.org/lkml/2005/10/19/46). * * jiffies can be configured (http://man7.org/linux/man-pages/man7/time.7.html) * to be * - 0.01 seconds, which will make this minimum ~2.5 seconds. * - 0.004 seconds, which will make this minimum ~1 second. * - 0.001 seconds, which will make this minimum ~0.25 seconds. * * If you think this is dumb, you can always assign some other value, such as * zero. */ #define MIN_TIMER_SLEEP (255) /* -- Config defaults -- */ #define DEFAULT_ADDR_DEPENDENT_FILTERING false #define DEFAULT_FILTER_ICMPV6_INFO false #define DEFAULT_DROP_EXTERNAL_CONNECTIONS false #define DEFAULT_MAX_STORED_PKTS 10 #define DEFAULT_SRC_ICMP6ERRS_BETTER true #define DEFAULT_F_ARGS 0b1011 #define DEFAULT_HANDLE_FIN_RCV_RST false #define DEFAULT_BIB_LOGGING false #define DEFAULT_SESSION_LOGGING false #define DEFAULT_INSTANCE_ENABLED true #define DEFAULT_RESET_TRAFFIC_CLASS false #define DEFAULT_RESET_TOS false #define DEFAULT_NEW_TOS 0 #define DEFAULT_COMPUTE_UDP_CSUM0 false #define DEFAULT_EAM_HAIRPIN_MODE EHM_INTRINSIC #define DEFAULT_RANDOMIZE_RFC6791 true #define DEFAULT_MTU_PLATEAUS { 65535, 32000, 17914, 8166, 4352, 2002, 1492, \ 1006, 508, 296, 68 } #define DEFAULT_JOOLD_ENABLED false #define DEFAULT_JOOLD_FLUSH_ASAP true #define DEFAULT_JOOLD_DEADLINE 2 #define DEFAULT_JOOLD_CAPACITY 512 /** * typical MTU minus max(20, 40) minus the UDP header. (1500 - 40 - 8) * There's a 16-bytes joold header and each session spans 64 bytes currently. * This means we can fit 22 sessions per packet. (Regardless of IPv4/IPv6) */ #define DEFAULT_JOOLD_MAX_PAYLOAD 1452 /* -- IPv6 Pool -- */ #define WELL_KNOWN_PREFIX "64:ff9b::/96" /** * RFC 6052's allowed prefix lengths. */ #define POOL6_PREFIX_LENGTHS { 32, 40, 48, 56, 64, 96 } /* -- IPv4 pool -- */ #define DEFAULT_POOL4_MIN_PORT 61001 #define DEFAULT_POOL4_MAX_PORT 65535 /* -- ICMP constants missing from icmp.h and icmpv6.h. -- */ /** Code 0 for ICMP messages of type ICMP_PARAMETERPROB. */ #define ICMP_PTR_INDICATES_ERROR 0 /** Code 2 for ICMP messages of type ICMP_PARAMETERPROB. */ #define ICMP_BAD_LENGTH 2 /* -- Netlink -- */ #define NETLINK_MULTICAST_FAMILY 22 #endif /* SRC_COMMON_CONSTANTS_H_ */ jool-4.0.7/src/common/xlat.h0000664000175000017500000000164513576244253012631 00000000000000#ifndef SRC_COMMON_XLAT_H_ #define SRC_COMMON_XLAT_H_ #include #ifndef __KERNEL__ #include #endif #define JOOL_LICENSE "GPL v2" /** * These defines are read in from dkms.conf. If you change their syntax or * relocate them, please make sure to also update dkms.conf accordingly. */ #define JOOL_VERSION_MAJOR 4 #define JOOL_VERSION_MINOR 0 #define JOOL_VERSION_REV 7 #define JOOL_VERSION_DEV 0 /** See http://stackoverflow.com/questions/195975 */ #define STR_VALUE(arg) #arg #define VALUE_TO_STR(name) STR_VALUE(name) #define JOOL_VERSION_STR \ VALUE_TO_STR(JOOL_VERSION_MAJOR) "." \ VALUE_TO_STR(JOOL_VERSION_MINOR) "." \ VALUE_TO_STR(JOOL_VERSION_REV) "." \ VALUE_TO_STR(JOOL_VERSION_DEV) static inline unsigned int xlat_version(void) { return (JOOL_VERSION_MAJOR << 24) | (JOOL_VERSION_MINOR << 16) | (JOOL_VERSION_REV << 8) | JOOL_VERSION_DEV; } #endif /* SRC_COMMON_XLAT_H_ */ jool-4.0.7/src/common/globals.c0000664000175000017500000002160713576225301013270 00000000000000#include "common/constants.h" #include "globals.h" #ifdef __KERNEL__ #define GTYPE_FN(printer, parser, validator) .validate = validator #define GLOBAL_FN(validator, printer) .validate = validator #else #define GTYPE_FN(printer, parser, validator) .print = printer, .parse = parser #define GLOBAL_FN(validator, printer) .print = printer #endif static struct global_type gt_bool = { .id = GTI_BOOL, .name = "Boolean", .size = sizeof(config_bool), GTYPE_FN(print_bool, parse_bool, NULL), .candidates = "true false", }; static struct global_type gt_uint8 = { .id = GTI_NUM8, .name = "8-bit unsigned integer", .size = sizeof(__u8), GTYPE_FN(print_u8, parse_u8, validate_u8), }; static struct global_type gt_uint32 = { .id = GTI_NUM32, .name = "32-bit unsigned integer", .size = sizeof(__u32), GTYPE_FN(print_u32, parse_u32, validate_u32), }; static struct global_type gt_timeout = { .id = GTI_TIMEOUT, .name = "[HH:[MM:]]SS[.mmm]", .size = sizeof(__u32), GTYPE_FN(print_timeout, parse_timeout, validate_u32), }; static struct global_type gt_plateaus = { .id = GTI_PLATEAUS, .name = "List of 16-bit unsigned integers separated by commas", .size = sizeof(struct mtu_plateaus), GTYPE_FN(print_plateaus, parse_plateaus, validate_plateaus), }; static struct global_type gt_prefix6 = { .id = GTI_PREFIX6, .name = "IPv6 prefix", .size = sizeof(struct config_prefix6), GTYPE_FN(print_prefix6, parse_prefix6, validate_prefix6), }; static struct global_type gt_prefix4 = { .id = GTI_PREFIX4, .name = "IPv4 prefix", .size = sizeof(struct config_prefix4), GTYPE_FN(print_prefix4, parse_prefix4, validate_prefix4), }; static struct global_type gt_hairpin_mode = { .id = GTI_HAIRPIN_MODE, .name = "Hairpinning Mode", .size = sizeof(__u8), GTYPE_FN(print_hairpin_mode, parse_hairpin_mode, validate_hairpin_mode), .candidates = "off simple intrinsic", }; /* TODO (fine) turn this into a constant. */ static struct global_field global_fields[] = { { .name = "manually-enabled", .type = >_bool, .doc = "Resumes or pauses the instance's translation.", .offset = offsetof(struct globals, enabled), .xt = XT_ANY, }, { .name = "pool6", .type = >_prefix6, .doc = "The IPv6 Address Pool prefix.", .offset = offsetof(struct globals, pool6), .xt = XT_ANY, GLOBAL_FN(validate_pool6, NULL), .candidates = WELL_KNOWN_PREFIX, }, { .name = "zeroize-traffic-class", .type = >_bool, .doc = "Always set the IPv6 header's 'Traffic Class' field as zero? Otherwise copy from IPv4 header's 'TOS'.", .offset = offsetof(struct globals, reset_traffic_class), .xt = XT_ANY, }, { .name = "override-tos", .type = >_bool, .doc = "Override the IPv4 header's 'TOS' field as --tos? Otherwise copy from IPv6 header's 'Traffic Class'.", .offset = offsetof(struct globals, reset_tos), .xt = XT_ANY, }, { .name = "tos", .type = >_uint8, .doc = "Value to override TOS as (only when --override-tos is ON).", .offset = offsetof(struct globals, new_tos), .xt = XT_ANY, .min = 0, .max = MAX_U8, }, { .name = "mtu-plateaus", .type = >_plateaus, .doc = "Set the list of plateaus for ICMPv4 Fragmentation Neededs with MTU unset.", .offset = offsetof(struct globals, plateaus), .xt = XT_ANY, }, { .name = "amend-udp-checksum-zero", .type = >_bool, .doc = "Compute the UDP checksum of IPv4-UDP packets whose value is zero? Otherwise drop the packet.", .offset = offsetof(struct globals, siit.compute_udp_csum_zero), .xt = XT_SIIT, }, { .name = "eam-hairpin-mode", .type = >_hairpin_mode, .doc = "Defines how EAM+hairpinning is handled.\n" "(0 = Disabled; 1 = Simple; 2 = Intrinsic)", .offset = offsetof(struct globals, siit.eam_hairpin_mode), .xt = XT_SIIT, .min = 0, /* Don't mind this; the validate function will handle it. */ .max = MAX_U8, }, { .name = "randomize-rfc6791-addresses", .type = >_bool, .doc = "Randomize selection of address from the RFC6791 pool? Otherwise choose the 'Hop Limit'th address.", .offset = offsetof(struct globals, siit.randomize_error_addresses), .xt = XT_SIIT, }, { .name = "rfc6791v6-prefix", .type = >_prefix6, .doc = "IPv6 prefix to generate RFC6791v6 addresses from.", .offset = offsetof(struct globals, siit.rfc6791_prefix6), .xt = XT_SIIT, }, { .name = "rfc6791v4-prefix", .type = >_prefix4, .doc = "IPv4 prefix to generate RFC6791 addresses from.", .offset = offsetof(struct globals, siit.rfc6791_prefix4), .xt = XT_SIIT, GLOBAL_FN(validate_prefix6791v4, NULL), }, { .name = "address-dependent-filtering", .type = >_bool, .doc = "Use Address-Dependent Filtering? ON is (address)-restricted-cone NAT, OFF is full-cone NAT.", .offset = offsetof(struct globals, nat64.bib.drop_by_addr), .xt = XT_NAT64, }, { .name = "drop-icmpv6-info", .type = >_bool, .doc = "Filter ICMPv6 Informational packets?", .offset = offsetof(struct globals, nat64.drop_icmp6_info), .xt = XT_NAT64, }, { .name = "drop-externally-initiated-tcp", .type = >_bool, .doc = "Drop externally initiated TCP connections?", .offset = offsetof(struct globals, nat64.bib.drop_external_tcp), .xt = XT_NAT64, }, { .name = "udp-timeout", .type = >_timeout, .doc = "Set the UDP session lifetime (HH:MM:SS.mmm).", .offset = offsetof(struct globals, nat64.bib.ttl.udp), .xt = XT_NAT64, .min = 1000 * UDP_MIN, .max = MAX_U32, }, { .name = "icmp-timeout", .type = >_timeout, .doc = "Set the timeout for ICMP sessions (HH:MM:SS.mmm).", .offset = offsetof(struct globals, nat64.bib.ttl.icmp), .xt = XT_NAT64, .min = 0, .max = MAX_U32, }, { .name = "tcp-est-timeout", .type = >_timeout, .doc = "Set the TCP established session lifetime (HH:MM:SS.mmm).", .offset = offsetof(struct globals, nat64.bib.ttl.tcp_est), .xt = XT_NAT64, .min = 1000 * TCP_EST, .max = MAX_U32, }, { .name = "tcp-trans-timeout", .type = >_timeout, .doc = "Set the TCP transitory session lifetime (HH:MM:SS.mmm).", .offset = offsetof(struct globals, nat64.bib.ttl.tcp_trans), .xt = XT_NAT64, .min = 1000 * TCP_TRANS, .max = MAX_U32, }, { .name = "maximum-simultaneous-opens", .type = >_uint32, .doc = "Set the maximum allowable 'simultaneous' Simultaneos Opens of TCP connections.", .offset = offsetof(struct globals, nat64.bib.max_stored_pkts), .min = 0, .max = MAX_U32, .xt = XT_NAT64, }, { .name = "source-icmpv6-errors-better", .type = >_bool, .doc = "Translate source addresses directly on 4-to-6 ICMP errors?", .offset = offsetof(struct globals, nat64.src_icmp6errs_better), .xt = XT_NAT64, }, { .name = "f-args", .type = >_uint8, .doc = "Defines the arguments that will be sent to F().\n" "(F() is defined by algorithm 3 of RFC 6056.)\n" "- First (leftmost) bit is source address.\n" "- Second bit is source port.\n" "- Third bit is destination address.\n" "- Fourth (rightmost) bit is destination port.", .offset = offsetof(struct globals, nat64.f_args), .xt = XT_NAT64, .min = 0, .max = 0x0Fu, GLOBAL_FN(NULL, print_fargs), }, { .name = "handle-rst-during-fin-rcv", .type = >_bool, .doc = "Use transitory timer when RST is received during the V6 FIN RCV or V4 FIN RCV states?", .offset = offsetof(struct globals, nat64.handle_rst_during_fin_rcv), .xt = XT_NAT64, }, { .name = "logging-bib", .type = >_bool, .doc = "Log BIBs as they are created and destroyed?", .offset = offsetof(struct globals, nat64.bib.bib_logging), .xt = XT_NAT64, }, { .name = "logging-session", .type = >_bool, .doc = "Log sessions as they are created and destroyed?", .offset = offsetof(struct globals, nat64.bib.session_logging), .xt = XT_NAT64, }, { .name = "ss-enabled", .type = >_bool, .doc = "Enable Session Synchronization?", .offset = offsetof(struct globals, nat64.joold.enabled), .xt = XT_NAT64, }, { .name = "ss-flush-asap", .type = >_bool, .doc = "Try to synchronize sessions as soon as possible?", .offset = offsetof(struct globals, nat64.joold.flush_asap), .xt = XT_NAT64, }, { .name = "ss-flush-deadline", .type = >_uint32, .doc = "Inactive milliseconds after which to force a session sync.", .offset = offsetof(struct globals, nat64.joold.flush_deadline), .xt = XT_NAT64, .min = 0, .max = MAX_U32, }, { .name = "ss-capacity", .type = >_uint32, .doc = "Maximim number of queuable entries.", .offset = offsetof(struct globals, nat64.joold.capacity), .xt = XT_NAT64, .min = 0, .max = MAX_U32, }, { .name = "ss-max-payload", .type = >_uint32, .doc = "Maximum amount of bytes joold should send per packet.", .offset = offsetof(struct globals, nat64.joold.max_payload), .xt = XT_NAT64, .min = 0, .max = MAX_U16, }, { NULL }, }; void get_global_fields(struct global_field **fields, unsigned int *len) { if (fields) *fields = global_fields; if (len) *len = (sizeof(global_fields) / sizeof(global_fields[0])) - 1; } long int global_field_index(struct global_field *field) { return field - global_fields; } jool-4.0.7/src/common/globals.h0000664000175000017500000000575713576225301013305 00000000000000#ifndef SRC_COMMON_GLOBALS_H_ #define SRC_COMMON_GLOBALS_H_ #ifdef __KERNEL__ #include #else #include #endif #include "common/config.h" typedef enum global_type_id { GTI_BOOL, GTI_NUM8, GTI_NUM32, GTI_TIMEOUT, GTI_PLATEAUS, GTI_PREFIX6, GTI_PREFIX4, GTI_HAIRPIN_MODE, } global_type_id; struct global_field; #ifdef __KERNEL__ /* This function does not need to validate xlator_type nor type->size. */ typedef int (*validate_function)(struct global_field *field, void *value, bool force); int validate_u8(struct global_field *field, void *value, bool force); int validate_u32(struct global_field *field, void *value, bool force); int validate_pool6(struct global_field *field, void *value, bool force); int validate_plateaus(struct global_field *field, void *value, bool force); int validate_prefix6(struct global_field *field, void *value, bool force); int validate_prefix4(struct global_field *field, void *value, bool force); int validate_prefix6791v4(struct global_field *field, void *value, bool force); int validate_hairpin_mode(struct global_field *field, void *value, bool force); #else typedef void (*print_function)(void *value, bool csv); typedef struct jool_result (*parse_function)(struct global_field *field, char *str, void *result); void print_bool(void *value, bool csv); void print_u8(void *value, bool csv); void print_u32(void *value, bool csv); void print_timeout(void *value, bool csv); void print_plateaus(void *value, bool csv); void print_prefix6(void *value, bool csv); void print_prefix4(void *value, bool csv); void print_hairpin_mode(void *value, bool csv); void print_fargs(void *value, bool csv); struct jool_result parse_bool(struct global_field *, char *, void *); struct jool_result parse_u8(struct global_field *, char *, void *); struct jool_result parse_u32(struct global_field *, char *, void *); struct jool_result parse_timeout(struct global_field *, char *, void *); struct jool_result parse_plateaus(struct global_field *, char *, void *); struct jool_result parse_prefix6(struct global_field *, char *, void *); struct jool_result parse_prefix4(struct global_field *, char *, void *); struct jool_result parse_hairpin_mode(struct global_field *, char *, void *); #endif struct global_type { global_type_id id; const char *name; size_t size; #ifdef __KERNEL__ validate_function validate; #else print_function print; parse_function parse; #endif char *candidates; /* Same as in struct wargp_type. */ }; struct global_field { char *name; /* This being NULL means the end of the array. */ struct global_type *type; const char *doc; size_t offset; xlator_type xt; __u64 min; __u64 max; #ifdef __KERNEL__ validate_function validate; /* Overrides type->validate. */ #else print_function print; /* Overrides type->print. */ #endif char *candidates; /* Overrides type->candidates. */ }; void get_global_fields(struct global_field **fields, unsigned int *len); long int global_field_index(struct global_field *field); #endif /* SRC_COMMON_GLOBALS_H_ */ jool-4.0.7/src/common/Makefile.in0000664000175000017500000003550213576247344013560 00000000000000# Makefile.in generated by automake 1.15.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2017 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # This directory contains code that is shared between kernelspace and userspace. # Given that the shared libraries are presently private, we can skip the # installation of all of this. If you ever need to publish some libraries, # notice that a good chunk of this API does not need to be exported, as it's # only used internally by both the kernel modules and libjoolnl. # The .c files are header-source hybrids. # They are implementation code that needs to be identical in user and kernel. # Each one of them should be included no more than once in kernelspace, and no # more than once in userspace. 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If you ever need to publish some libraries, # notice that a good chunk of this API does not need to be exported, as it's # only used internally by both the kernel modules and libjoolnl. # The .c files are header-source hybrids. # They are implementation code that needs to be identical in user and kernel. # Each one of them should be included no more than once in kernelspace, and no # more than once in userspace. noinst_HEADERS = \ config.c config.h \ constants.h \ globals.c globals.h \ session.h \ stats.h \ types.c types.h \ xlat.h jool-4.0.7/src/common/types.c0000664000175000017500000000363013576225301013005 00000000000000#include "types.h" #ifdef __KERNEL__ #include #else #include #endif const char *l3proto_to_string(l3_protocol l3_proto) { switch (l3_proto) { case L3PROTO_IPV6: return "IPv6"; case L3PROTO_IPV4: return "IPv4"; } return NULL; } const char *l4proto_to_string(l4_protocol l4_proto) { switch (l4_proto) { case L4PROTO_TCP: return "TCP"; case L4PROTO_UDP: return "UDP"; case L4PROTO_ICMP: return "ICMP"; case L4PROTO_OTHER: return "unknown"; } return NULL; } l4_protocol str_to_l4proto(char *str) { if (strcasecmp("TCP", str) == 0) return L4PROTO_TCP; if (strcasecmp("UDP", str) == 0) return L4PROTO_UDP; if (strcasecmp("ICMP", str) == 0) return L4PROTO_ICMP; return L4PROTO_OTHER; } bool port_range_equals(const struct port_range *r1, const struct port_range *r2) { return (r1->min == r2->min) && (r1->max == r2->max); } /** * Range [1,3] touches [2,6]. * Range [1,3] touches [3,6]. * Range [1,3] touches [4,6]. * Range [1,3] does not touch [5,6]. */ bool port_range_touches(const struct port_range *r1, const struct port_range *r2) { return r1->max >= (r2->min - 1) && r1->min <= (r2->max + 1); } bool port_range_contains(const struct port_range *range, __u16 port) { return range->min <= port && port <= range->max; } unsigned int port_range_count(const struct port_range *range) { return range->max - range->min + 1U; } void port_range_fuse(struct port_range *r1, const struct port_range *r2) { r1->min = (r1->min < r2->min) ? r1->min : r2->min; r1->max = (r1->max > r2->max) ? r1->max : r2->max; } bool pool4_range_equals(struct pool4_range *r1, struct pool4_range *r2) { return (r1->addr.s_addr == r2->addr.s_addr) && port_range_equals(&r1->ports, &r2->ports); } bool pool4_range_touches(const struct pool4_range *r1, const struct pool4_range *r2) { return (r1->addr.s_addr == r2->addr.s_addr) && port_range_touches(&r1->ports, &r2->ports); } jool-4.0.7/src/common/config.h0000664000175000017500000005004313576244253013122 00000000000000#ifndef SRC_COMMON_CONFIG_H_ #define SRC_COMMON_CONFIG_H_ /** * @file * Elements visible to both the kernel module and the userspace application, and * which they use to communicate with each other. */ #include "common/types.h" #include "common/xlat.h" /** cuz sizeof(bool) is implementation-defined. */ typedef __u8 config_bool; #define IPTABLES_SIIT_MODULE_NAME "JOOL_SIIT" #define IPTABLES_NAT64_MODULE_NAME "JOOL" #define GNL_JOOL_FAMILY "Jool" #define GNL_JOOLD_MULTICAST_GRP_NAME "joold" /* TODO (fine) these values are not always used. */ /* Instance */ #define OPTNAME_INAME "instance" #define OPTNAME_FW "framework" #define OPTNAME_NETFILTER "netfilter" #define OPTNAME_IPTABLES "iptables" /* Modes */ #define OPTNAME_INSTANCE "instance" #define OPTNAME_ADDRESS "address" #define OPTNAME_STATS "stats" #define OPTNAME_GLOBAL "global" #define OPTNAME_EAMT "eamt" #define OPTNAME_BLACKLIST "blacklist4" #define OPTNAME_POOL4 "pool4" #define OPTNAME_BIB "bib" #define OPTNAME_SESSION "session" #define OPTNAME_JOOLD "joold" #define OPTNAME_PARSE_FILE "file" /* Operations */ #define OPTNAME_DISPLAY "display" #define OPTNAME_ADD "add" #define OPTNAME_UPDATE "update" #define OPTNAME_REMOVE "remove" #define OPTNAME_FLUSH "flush" #define OPTNAME_ADVERTISE "advertise" #define OPTNAME_TEST "test" #define OPTNAME_ACK "ack" /* Normal flags */ #define OPTNAME_ENABLE "enable" #define OPTNAME_DISABLE "disable" #define OPTNAME_ZEROIZE_TC "zeroize-traffic-class" #define OPTNAME_OVERRIDE_TOS "override-tos" #define OPTNAME_TOS "tos" #define OPTNAME_MTU_PLATEAUS "mtu-plateaus" #define OPTNAME_POOL6 "pool6" /* SIIT-only flags */ #define OPTNAME_AMEND_UDP_CSUM "amend-udp-checksum-zero" #define OPTNAME_EAM_HAIRPIN_MODE "eam-hairpin-mode" #define OPTNAME_RANDOMIZE_RFC6791 "randomize-rfc6791-addresses" #define OPTNAME_RFC6791V6_PREFIX "rfc6791v6-prefix" /* NAT64-only flags */ #define OPTNAME_DROP_BY_ADDR "address-dependent-filtering" #define OPTNAME_DROP_ICMP6_INFO "drop-icmpv6-info" #define OPTNAME_DROP_EXTERNAL_TCP "drop-externally-initiated-tcp" #define OPTNAME_UDP_TIMEOUT "udp-timeout" #define OPTNAME_ICMP_TIMEOUT "icmp-timeout" #define OPTNAME_TCPEST_TIMEOUT "tcp-est-timeout" #define OPTNAME_TCPTRANS_TIMEOUT "tcp-trans-timeout" #define OPTNAME_MAX_SO "maximum-simultaneous-opens" #define OPTNAME_SRC_ICMP6E_BETTER "source-icmpv6-errors-better" #define OPTNAME_HANDLE_FIN_RCV_RST "handle-rst-during-fin-rcv" #define OPTNAME_F_ARGS "f-args" #define OPTNAME_BIB_LOGGING "logging-bib" #define OPTNAME_SESSION_LOGGING "logging-session" /* pool4 flags */ #define OPTNAME_MARK "mark" #define OPTNAME_MAX_ITERATIONS "max-iterations" /* Synchronization flags */ #define OPTNAME_SS_ENABLED "ss-enabled" #define OPTNAME_SS_FLUSH_ASAP "ss-flush-asap" #define OPTNAME_SS_FLUSH_DEADLINE "ss-flush-deadline" #define OPTNAME_SS_CAPACITY "ss-capacity" #define OPTNAME_SS_MAX_PAYLOAD "ss-max-payload" /* Blah */ #define OPTNAME_COMMENT "comment" enum genl_mc_group_ids { JOOLD_MC_ID = (1 << 0), }; enum genl_commands { JOOL_COMMAND, }; enum attributes { ATTR_DUMMY, ATTR_INAME, ATTR_DATA, __ATTR_MAX, }; enum config_mode { /** The current message is talking about instance management. */ MODE_INSTANCE, /** Querying an address translation result. */ MODE_ADDRESS, /** The current message is talking about stats reporting. */ MODE_STATS, /** The current message is talking about global configuration values. */ MODE_GLOBAL, /** The current message is talking about the EAMT. */ MODE_EAMT, /** The current message is talking about the blacklist4ed IPv4 addr pool. */ MODE_BLACKLIST, /** The current message is talking about the IPv4 pool. */ MODE_POOL4, /** The current message is talking about the Binding Info Bases. */ MODE_BIB, /** The current message is talking about the session tables. */ MODE_SESSION, /** The current message is talking about synchronization entries.*/ MODE_JOOLD, /** The current message is talking about the JSON configuration file */ MODE_PARSE_FILE, }; char *configmode_to_string(enum config_mode mode); enum config_operation { /** The userspace app wants to print the stuff being requested. */ OP_FOREACH, /** * The userspace app wants to add an element to the table being * requested. */ OP_ADD, /** The userspace app wants to edit some value. */ OP_UPDATE, /** * The userspace app wants to delete an element from the table being * requested. */ OP_REMOVE, /** The userspace app wants to clear some table. */ OP_FLUSH, /** The userspace app wants us to shout something somewhere. */ OP_ADVERTISE, /** The userspace app wants to test something. */ OP_TEST, /** Somebody is acknowledging reception of a previous message. */ OP_ACK, }; enum parse_section { SEC_INIT, SEC_GLOBAL, SEC_EAMT, SEC_BLACKLIST, SEC_POOL4, SEC_BIB, /* The enum needs to fit in __u8s. */ SEC_COMMIT = 0xFF, }; typedef unsigned int xlator_flags; typedef unsigned int xlator_type; /** Bitwise or'd XT_* constants below. */ typedef unsigned int xlator_framework; /** Bitwise or'd XF_* constants below. */ #define XT_SIIT (1 << 0) #define XT_NAT64 (1 << 1) #define XF_NETFILTER (1 << 2) #define XF_IPTABLES (1 << 3) #define XT_ANY (XT_SIIT | XT_NAT64) #define XF_ANY (XF_NETFILTER | XF_IPTABLES) int xf_validate(xlator_framework xf); int xt_validate(xlator_type xt); xlator_type xlator_flags2xt(xlator_flags flags); xlator_framework xlator_flags2xf(xlator_flags flags); #define XT_VALIDATE_ERRMSG \ "The instance type must be either SIIT or NAT64." #define XF_VALIDATE_ERRMSG \ "The instance framework must be either Netfilter or iptables." /** * Prefix to all user-to-kernel messages. * Indicates what the rest of the message contains. */ struct request_hdr { /** Protocol magic header (always "jool"). */ __u8 magic[4]; /** * enum xlator_type * (Only relevant in requests from userspace) */ __u8 xt; /** * 'u'nicast or 'm'ulticast. Only userspace joold needs it, so most of * the time this field is ignored. * * This exists because I haven't found a way for joold to tell whether a * kernel packet is a multicast request or a unicast response. * TODO (fine) Find a way to do that? */ __u8 castness; /** Ignore certain validations? */ __u8 force; /** * http://www.catb.org/esr/structure-packing/ * Explicit unused space for future functionality and to ensure * sizeof(struct request_hdr) is a power of 2. */ __u8 slop1; /** Jool's version. */ __be32 version; /** See "enum config_mode". */ __u8 mode; /** See "enum config_operation". */ __u8 operation; __u16 slop2; }; void init_request_hdr(struct request_hdr *hdr, xlator_type xt, enum config_mode mode, enum config_operation operation, bool force); /* * This includes the null chara; the practical maximum is 15. * 15 looks pallatable for decimal-thinking users :p */ #define INAME_MAX_LEN 16u #define INAME_DEFAULT "default" int iname_validate(const char *iname, bool allow_null); #define INAME_VALIDATE_ERRMSG "The instance name must be a null-terminated ascii string, %u characters max." struct config_prefix6 { config_bool set; /** Please note that this could be garbage; see above. */ struct ipv6_prefix prefix; }; struct config_prefix4 { config_bool set; /** Please note that this could be garbage; see above. */ struct ipv4_prefix prefix; }; struct response_hdr { struct request_hdr req; __u16 error_code; config_bool pending_data; }; /** * Issued during atomic configuration initialization. */ struct request_init { __u8 xf; /* enum xlator_framework */ }; /* This structure needs to length a multiple of 8 bytes. */ struct instance_entry_usr { /* 8 */ __u64 ns; /* 9 */ __u8 xf; /* enum xlator_framework */ /* 25 */ char iname[INAME_MAX_LEN]; /* 32 */ __u8 slop[7]; }; union request_instance { struct { config_bool offset_set; struct instance_entry_usr offset; } foreach; struct { char iname[INAME_MAX_LEN]; } hello; struct { __u8 xf; /* enum xlator_framework */ char iname[INAME_MAX_LEN]; struct config_prefix6 pool6; } add; struct { char iname[INAME_MAX_LEN]; } rm; }; enum instance_hello_status { /** Instance exists */ IHS_ALIVE, /** Instance does not exist */ IHS_DEAD, }; struct instance_hello_response { __u8 status; }; enum iteration_flags { /** * Is the iterations field relevant? * (Irrelevant = "Ignore this; keep the old value.") */ ITERATIONS_SET = (1 << 0), /** Should Jool compute the iterations field automatically? */ ITERATIONS_AUTO = (1 << 1), /** Remove iteration cap? */ ITERATIONS_INFINITE = (1 << 2), }; /* This structure needs to length a multiple of 8 bytes. */ struct pool4_entry_usr { /* 4 */ __u32 mark; /** * BTW: This field is only meaningful if flags has ITERATIONS_SET, * !ITERATIONS_AUTO and !ITERATIONS_INFINITE. */ /* 8 */__u32 iterations; /* 9 */ __u8 flags; /* 10 */ __u8 proto; /* 12 */ __u16 slop; /* 24 */ struct ipv4_range range; }; struct pool4_update { __u32 mark; __u32 iterations; __u8 flags; __u8 l4_proto; }; /** * Configuration for the "IPv4 Pool" module. */ union request_pool4 { struct { __u8 proto; config_bool offset_set; struct pool4_sample offset; } foreach; struct pool4_entry_usr add; struct pool4_update update; struct { struct pool4_entry_usr entry; /** * Whether the address's BIB entries and sessions should be * cleared too (false) or not (true). */ config_bool quick; } rm; struct { /** * Whether the BIB and the sessions tables should also be * cleared (false) or not (true). */ config_bool quick; } flush; }; union request_blacklist4 { struct { config_bool offset_set; struct ipv4_prefix offset; } foreach; struct { struct ipv4_prefix addrs; } add; struct { struct ipv4_prefix addrs; } rm; }; /** * Configuration for the "EAM" module. */ union request_eamt { struct { config_bool prefix4_set; struct ipv4_prefix prefix4; } foreach; struct { struct ipv6_prefix prefix6; struct ipv4_prefix prefix4; } add; struct { config_bool prefix6_set; struct ipv6_prefix prefix6; config_bool prefix4_set; struct ipv4_prefix prefix4; } rm; struct { __u8 proto; union { struct in6_addr v6; struct in_addr v4; } addr; } test; }; /** * Configuration for the "BIB" module. */ struct request_bib { /** * Table the userspace app wants to display or edit. See enum * l4_protocol. */ __u8 l4_proto; union { struct { config_bool addr4_set; /** * Address the userspace app received in the last chunk. * Iteration should contiue from here. */ struct ipv4_transport_addr addr4; } foreach; struct { /** * The IPv6 transport address of the entry the user * wants to add. */ struct ipv6_transport_addr addr6; /** * The IPv4 transport address of the entry the user * wants to add. */ struct ipv4_transport_addr addr4; } add; struct { /* Is the value if "addr6" set? */ config_bool addr6_set; /** * The IPv6 transport address of the entry the user * wants to remove. */ struct ipv6_transport_addr addr6; /* Is the value if "addr4" set? */ config_bool addr4_set; /** * The IPv4 transport address of the entry the user * wants to remove. */ struct ipv4_transport_addr addr4; } rm; }; }; /** * Configuration for the "Session DB"'s tables. */ struct request_session { /** Table the userspace app wants to display. See enum l4_protocol. */ __u8 l4_proto; union { struct { /** Is offset set? */ config_bool offset_set; /** * Connection the userspace app received in the last * chunk. Iteration should continue from here. */ struct taddr4_tuple offset; } foreach; }; }; /** * A BIB entry, from the eyes of userspace. * * It's a stripped version of "struct bib_entry" and only used when BIB entries * need to travel to userspace. For anything else, use "struct bib_entry". * * See "struct bib_entry" for documentation on the fields. * * This structure needs to length a multiple of 8 bytes. */ struct bib_entry_usr { /* 8 */ struct ipv4_transport_addr addr4; /* 28 */ struct ipv6_transport_addr addr6; /* 29 */ __u8 l4_proto; /* 30 */ config_bool is_static; /* 32 */ __u16 slop2; }; /** * A session entry, from the eyes of userspace. * * It's a stripped version of "struct session_entry" and only used when sessions * need to travel to userspace. For anything else, use "struct session_entry". * * See "struct session_entry" for documentation on the fields. * * This structure needs to length a multiple of 8 bytes. */ struct session_entry_usr { /* 20 */ struct ipv6_transport_addr src6; /* 40 */ struct ipv6_transport_addr dst6; /* 48 */ struct ipv4_transport_addr src4; /* 56 */ struct ipv4_transport_addr dst4; /* 57 */ __u8 state; /* 60 */ __u8 slop[3]; /* 64 */ __u32 dying_time; }; /** * Explicit Address Mapping definition. * Intended to be a row in the Explicit Address Mapping Table, bind an IPv4 * Prefix to an IPv6 Prefix and vice versa. * * This structure needs to length a multiple of 8 bytes. */ struct eamt_entry { /* 20 */ struct ipv6_prefix prefix6; /* 28 */ struct ipv4_prefix prefix4; /* 32 */ __u32 slop; }; struct request_addrxlat { int direction; union { struct in6_addr v6; struct in_addr v4; } addr; }; enum address_translation_method { AXM_RFC6052, AXM_EAMT, AXM_RFC6791, }; struct address_translation_entry { enum address_translation_method method; union { struct ipv6_prefix prefix6052; struct eamt_entry eam; /* The RFC6791 prefix is unused for now. */ }; }; struct result_addrxlat64 { struct in_addr addr; struct address_translation_entry entry; }; struct result_addrxlat46 { struct in6_addr addr; struct address_translation_entry entry; }; enum f_args { F_ARGS_SRC_ADDR = (1 << 3), F_ARGS_SRC_PORT = (1 << 2), F_ARGS_DST_ADDR = (1 << 1), F_ARGS_DST_PORT = (1 << 0), }; #define PLATEAUS_MAX 64 struct mtu_plateaus { __u16 values[PLATEAUS_MAX]; /** Actual length of the values array. */ __u16 count; }; struct bib_config { /* These values are always measured in milliseconds. */ struct { __u32 tcp_est; __u32 tcp_trans; __u32 udp; __u32 icmp; } ttl; config_bool bib_logging; config_bool session_logging; /** Use Address-Dependent Filtering? */ config_bool drop_by_addr; /** Drop externally initiated (IPv4) TCP connections? */ config_bool drop_external_tcp; __u32 max_stored_pkts; }; #define JOOLD_MAX_PAYLOAD 2048 struct joold_config { /** Is joold enabled on this Jool instance? */ config_bool enabled; /** * true: Whenever a session changes, packet it up and send it. * (Note: In theory, this might be more often than it seems. * It's not whenever a connection is initiated; * it's on every translated packet except ICMP errors. * In practice however, flushes are prohibited until the next * ACK (otherwise joold quickly saturates the kernel), so * sessions will end up queuing up even in this mode.) * This is the preferred method in active scenarios. * false: Wait until we have enough sessions to fill a packet before * sending them. * (ACKs are still required, but expected to arrive faster.) * This is the preferred method in passive scenarios. */ config_bool flush_asap; /** * The timer forcibly flushes the queue if this hasn't happened after * this amount of milliseconds, regardless of the ACK and @flush_asap. * This helps if an ACK is lost for some reason. */ __u32 flush_deadline; /** * Maximim number of queuable entries. * If this capacity is exceeded, Jool will have to start dropping * sessions. * This exists because it's theoretically possible for joold to not be * able to catch up with the translating traffic, and there's not much * we can do to recover if this happens. */ __u32 capacity; /** * Maximum amount of bytes joold should send per packet, excluding * IP/UDP headers. * * This exists because userspace joold sends sessions via UDP. UDP is * rather packet-oriented, as opposed to stream-oriented, so it doesn't * discover PMTU and instead tends to fragment when we send too many * sessions per packet. Which is bad. * * So the user, after figuring out the MTU, can tweak this number to * prevent fragmentation. * * We should probably handle this ourselves but it sounds like a lot of * code. (I guess I'm missing something.) */ __u32 max_payload; }; /** * A copy of the entire running configuration, excluding databases. */ struct globals { /** * Is Jool actually translating? * This depends on several factors depending on stateness, and is not an * actual variable Jool stores; it is computed as it is requested. */ config_bool status; /** * Does the user wants this Jool instance to translate packets? */ config_bool enabled; /** * BTW: NAT64 Jool can't do anything without pool6, so it validates that * this is this set very early. Most NAT64-exclusive code should just * assume that pool6.set is true. */ struct config_prefix6 pool6; /** * "true" if the Traffic Class field of translated IPv6 headers should * always be zeroized. * Otherwise it will be copied from the IPv4 header's TOS field. */ config_bool reset_traffic_class; /** * "true" if the Type of Service (TOS) field of translated IPv4 headers * should always be set as "new_tos". * Otherwise it will be copied from the IPv6 header's Traffic Class * field. */ config_bool reset_tos; /** * If "reset_tos" is "true", this is the value the translator will * always write in the TOS field of translated IPv4 headers. * If "reset_tos" is "false", then this doesn't do anything. */ __u8 new_tos; /** * If the translator detects the source of the incoming packet does not * implement RFC 1191, these are the plateau values used to determine a * likely path MTU for outgoing ICMPv6 fragmentation needed packets. * The translator is supposed to pick the greatest plateau value that is * less than the incoming packet's Total Length field. */ struct mtu_plateaus plateaus; union { struct { /** * Amend the UDP checksum of incoming IPv4-UDP packets * when it's zero? Otherwise these packets will be * dropped (because they're illegal in IPv6). */ config_bool compute_udp_csum_zero; /** * How should hairpinning be handled by EAM-translated * packets. * See @eam_hairpinning_mode. */ __u8 eam_hairpin_mode; /** * Randomize choice of RFC6791 address? * Otherwise it will be set depending on the incoming * packet's Hop Limit. * See https://github.com/NICMx/Jool/issues/130. */ config_bool randomize_error_addresses; /** * Address used to represent a not translatable source * address of an incoming packet. */ struct config_prefix6 rfc6791_prefix6; /** * Address used to represent a not translatable source * address of an incoming packet. */ struct config_prefix4 rfc6791_prefix4; } siit; struct { /** Filter ICMPv6 Informational packets? */ config_bool drop_icmp6_info; /** * True = issue #132 behaviour. * False = RFC 6146 behaviour. */ config_bool src_icmp6errs_better; /** * Fields of the packet that will be sent to the F() function. * (RFC 6056 algorithm 3.) * See "enum f_args". */ __u8 f_args; /** * Decrease timer when a FIN packet is received during the * `V4 FIN RCV` or `V6 FIN RCV` states? * https://github.com/NICMx/Jool/issues/212 */ config_bool handle_rst_during_fin_rcv; struct bib_config bib; struct joold_config joold; } nat64; }; }; struct global_value { __u16 type; /* Payload length; does not include this header. */ __u16 len; }; /** * The modes are defined by the latest version of the EAM draft. */ enum eam_hairpinning_mode { EHM_OFF = 0, EHM_SIMPLE = 1, EHM_INTRINSIC = 2, }; /** * Converts config's fields to userspace friendly units. */ void prepare_config_for_userspace(struct globals *config, bool pools_empty); /* * For iptables usage. * * This structure needs to length a multiple of 8 bytes. */ struct target_info { /* 16 */ char iname[INAME_MAX_LEN]; /* 17 */ __u8 type; /* xlator_type */ /* 24 */ __u8 slop[7]; }; #endif /* SRC_COMMON_CONFIG_H_ */ jool-4.0.7/src/common/stats.h0000664000175000017500000000361513576244253013016 00000000000000#ifndef SRC_COMMON_STATS_H_ #define SRC_COMMON_STATS_H_ /* * TODO Caller review needed. * Make sure there's a counter for every worthwhile event, * and also check the ICMP errors that sometimes need to be appended to them. */ /** * NOTE THAT ANY MODIFICATIONS MADE TO THIS STRUCTURE NEED TO BE CASCADED TO * jstat_metadatas. */ enum jool_stat_id { JSTAT_RECEIVED6, JSTAT_RECEIVED4, JSTAT_SUCCESS, JSTAT_BIB_ENTRIES, JSTAT_SESSIONS, JSTAT_ENOMEM, JSTAT_XLATOR_DISABLED, JSTAT_POOL6_UNSET, JSTAT_SKB_SHARED, JSTAT_L3HDR_OFFSET, JSTAT_SKB_TRUNCATED, JSTAT_FRAGMENTED_PING, JSTAT_HDR6, JSTAT_HDR4, JSTAT_UNKNOWN_L4_PROTO, JSTAT_UNKNOWN_ICMP6_TYPE, JSTAT_UNKNOWN_ICMP4_TYPE, JSTAT_DOUBLE_ICMP6_ERROR, JSTAT_DOUBLE_ICMP4_ERROR, JSTAT_UNKNOWN_PROTO_INNER, JSTAT_HAIRPIN_LOOP, JSTAT_POOL6_MISMATCH, JSTAT_POOL4_MISMATCH, JSTAT_ICMP6_FILTER, JSTAT_UNTRANSLATABLE_DST6, JSTAT_UNTRANSLATABLE_DST4, JSTAT_MASK_DOMAIN_NOT_FOUND, JSTAT_BIB6_NOT_FOUND, JSTAT_BIB4_NOT_FOUND, JSTAT_SESSION_NOT_FOUND, JSTAT_ADF, JSTAT_V4_SYN, JSTAT_SYN6_EXPECTED, JSTAT_SYN4_EXPECTED, JSTAT_TYPE1PKT, JSTAT_TYPE2PKT, JSTAT_SO_EXISTS, JSTAT_SO_FULL, JSTAT64_SRC, JSTAT64_DST, JSTAT64_PSKB_COPY, JSTAT64_ICMP_CSUM, JSTAT64_UNTRANSLATABLE_DEST_UNREACH, JSTAT64_UNTRANSLATABLE_PARAM_PROB, JSTAT64_UNTRANSLATABLE_PARAM_PROB_PTR, JSTAT64_TTL, JSTAT64_FRAG_THEN_EXT, JSTAT64_SEGMENTS_LEFT, JSTAT46_SRC, JSTAT46_DST, JSTAT46_PSKB_COPY, JSTAT46_ICMP_CSUM, JSTAT46_UNTRANSLATABLE_DEST_UNREACH, JSTAT46_UNTRANSLATABLE_PARAM_PROB, JSTAT46_UNTRANSLATABLE_PARAM_PROBLEM_PTR, JSTAT46_TTL, JSTAT46_SRC_ROUTE, JSTAT46_FRAGMENTED_ZERO_CSUM, JSTAT_FAILED_ROUTES, JSTAT_PKT_TOO_BIG, JSTAT_DST_OUTPUT, JSTAT_ICMP6ERR_SUCCESS, JSTAT_ICMP6ERR_FAILURE, JSTAT_ICMP4ERR_SUCCESS, JSTAT_ICMP4ERR_FAILURE, /* "WTF was that" errors only. */ JSTAT_UNKNOWN, __JSTAT_MAX, }; #endif /* SRC_COMMON_STATS_H_ */ jool-4.0.7/src/common/session.h0000664000175000017500000000215013576225301013325 00000000000000#ifndef SRC_COMMON_SESSION_H_ #define SRC_COMMON_SESSION_H_ /** The states from the TCP state machine; RFC 6146 section 3.5.2. */ typedef enum tcp_state { /** * The handshake is complete and the sides are exchanging upper-layer * data. * * This is the zero one so UDP and ICMP can unset the state field if * they want without fear of this looking weird. * (UDP/ICMP sessions are always logically established.) */ ESTABLISHED = 0, /** * A SYN packet arrived from the IPv6 side; some IPv4 node is trying to * start a connection. */ V6_INIT, /** * A SYN packet arrived from the IPv4 side; some IPv4 node is trying to * start a connection. */ V4_INIT, /** * The IPv4 node wants to terminate the connection. Data can still flow. * Awaiting a IPv6 FIN... */ V4_FIN_RCV, /** * The IPv6 node wants to terminate the connection. Data can still flow. * Awaiting a IPv4 FIN... */ V6_FIN_RCV, /** Both sides issued a FIN. Packets can still flow for a short time. */ V4_FIN_V6_FIN_RCV, /** The session might die in a short while. */ TRANS, } tcp_state; #endif /* SRC_COMMON_SESSION_H_ */ jool-4.0.7/ltmain.sh0000644000175000017500000117147413576247342011262 00000000000000#! /bin/sh ## DO NOT EDIT - This file generated from ./build-aux/ltmain.in ## by inline-source v2014-01-03.01 # libtool (GNU libtool) 2.4.6 # Provide generalized library-building support services. # Written by Gordon Matzigkeit , 1996 # Copyright (C) 1996-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. 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Vaughan, 2004 # Copyright (C) 2004-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # As a special exception to the GNU General Public License, if you distribute # this file as part of a program or library that is built using GNU Libtool, # you may include this file under the same distribution terms that you use # for the rest of that program. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # Please report bugs or propose patches to gary@gnu.org. ## ------ ## ## Usage. ## ## ------ ## # Evaluate this file near the top of your script to gain access to # the functions and variables defined here: # # . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh # # If you need to override any of the default environment variable # settings, do that before evaluating this file. ## -------------------- ## ## Shell normalisation. ## ## -------------------- ## # Some shells need a little help to be as Bourne compatible as possible. # Before doing anything else, make sure all that help has been provided! DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$@"}'='"$@"' setopt NO_GLOB_SUBST else case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac fi # NLS nuisances: We save the old values in case they are required later. _G_user_locale= _G_safe_locale= for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES do eval "if test set = \"\${$_G_var+set}\"; then save_$_G_var=\$$_G_var $_G_var=C export $_G_var _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\" _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\" fi" done # CDPATH. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH # Make sure IFS has a sensible default sp=' ' nl=' ' IFS="$sp $nl" # There are apparently some retarded systems that use ';' as a PATH separator! if test "${PATH_SEPARATOR+set}" != set; then PATH_SEPARATOR=: (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || PATH_SEPARATOR=';' } fi ## ------------------------- ## ## Locate command utilities. ## ## ------------------------- ## # func_executable_p FILE # ---------------------- # Check that FILE is an executable regular file. func_executable_p () { test -f "$1" && test -x "$1" } # func_path_progs PROGS_LIST CHECK_FUNC [PATH] # -------------------------------------------- # Search for either a program that responds to --version with output # containing "GNU", or else returned by CHECK_FUNC otherwise, by # trying all the directories in PATH with each of the elements of # PROGS_LIST. # # CHECK_FUNC should accept the path to a candidate program, and # set $func_check_prog_result if it truncates its output less than # $_G_path_prog_max characters. func_path_progs () { _G_progs_list=$1 _G_check_func=$2 _G_PATH=${3-"$PATH"} _G_path_prog_max=0 _G_path_prog_found=false _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:} for _G_dir in $_G_PATH; do IFS=$_G_save_IFS test -z "$_G_dir" && _G_dir=. for _G_prog_name in $_G_progs_list; do for _exeext in '' .EXE; do _G_path_prog=$_G_dir/$_G_prog_name$_exeext func_executable_p "$_G_path_prog" || continue case `"$_G_path_prog" --version 2>&1` in *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;; *) $_G_check_func $_G_path_prog func_path_progs_result=$func_check_prog_result ;; esac $_G_path_prog_found && break 3 done done done IFS=$_G_save_IFS test -z "$func_path_progs_result" && { echo "no acceptable sed could be found in \$PATH" >&2 exit 1 } } # We want to be able to use the functions in this file before configure # has figured out where the best binaries are kept, which means we have # to search for them ourselves - except when the results are already set # where we skip the searches. # Unless the user overrides by setting SED, search the path for either GNU # sed, or the sed that truncates its output the least. test -z "$SED" && { _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ for _G_i in 1 2 3 4 5 6 7; do _G_sed_script=$_G_sed_script$nl$_G_sed_script done echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed _G_sed_script= func_check_prog_sed () { _G_path_prog=$1 _G_count=0 printf 0123456789 >conftest.in while : do cat conftest.in conftest.in >conftest.tmp mv conftest.tmp conftest.in cp conftest.in conftest.nl echo '' >> conftest.nl "$_G_path_prog" -f conftest.sed conftest.out 2>/dev/null || break diff conftest.out conftest.nl >/dev/null 2>&1 || break _G_count=`expr $_G_count + 1` if test "$_G_count" -gt "$_G_path_prog_max"; then # Best one so far, save it but keep looking for a better one func_check_prog_result=$_G_path_prog _G_path_prog_max=$_G_count fi # 10*(2^10) chars as input seems more than enough test 10 -lt "$_G_count" && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out } func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin rm -f conftest.sed SED=$func_path_progs_result } # Unless the user overrides by setting GREP, search the path for either GNU # grep, or the grep that truncates its output the least. test -z "$GREP" && { func_check_prog_grep () { _G_path_prog=$1 _G_count=0 _G_path_prog_max=0 printf 0123456789 >conftest.in while : do cat conftest.in conftest.in >conftest.tmp mv conftest.tmp conftest.in cp conftest.in conftest.nl echo 'GREP' >> conftest.nl "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' conftest.out 2>/dev/null || break diff conftest.out conftest.nl >/dev/null 2>&1 || break _G_count=`expr $_G_count + 1` if test "$_G_count" -gt "$_G_path_prog_max"; then # Best one so far, save it but keep looking for a better one func_check_prog_result=$_G_path_prog _G_path_prog_max=$_G_count fi # 10*(2^10) chars as input seems more than enough test 10 -lt "$_G_count" && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out } func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin GREP=$func_path_progs_result } ## ------------------------------- ## ## User overridable command paths. ## ## ------------------------------- ## # All uppercase variable names are used for environment variables. These # variables can be overridden by the user before calling a script that # uses them if a suitable command of that name is not already available # in the command search PATH. : ${CP="cp -f"} : ${ECHO="printf %s\n"} : ${EGREP="$GREP -E"} : ${FGREP="$GREP -F"} : ${LN_S="ln -s"} : ${MAKE="make"} : ${MKDIR="mkdir"} : ${MV="mv -f"} : ${RM="rm -f"} : ${SHELL="${CONFIG_SHELL-/bin/sh}"} ## -------------------- ## ## Useful sed snippets. ## ## -------------------- ## sed_dirname='s|/[^/]*$||' sed_basename='s|^.*/||' # Sed substitution that helps us do robust quoting. It backslashifies # metacharacters that are still active within double-quoted strings. sed_quote_subst='s|\([`"$\\]\)|\\\1|g' # Same as above, but do not quote variable references. sed_double_quote_subst='s/\(["`\\]\)/\\\1/g' # Sed substitution that turns a string into a regex matching for the # string literally. sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g' # Sed substitution that converts a w32 file name or path # that contains forward slashes, into one that contains # (escaped) backslashes. A very naive implementation. sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' # Re-'\' parameter expansions in output of sed_double_quote_subst that # were '\'-ed in input to the same. If an odd number of '\' preceded a # '$' in input to sed_double_quote_subst, that '$' was protected from # expansion. Since each input '\' is now two '\'s, look for any number # of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'. _G_bs='\\' _G_bs2='\\\\' _G_bs4='\\\\\\\\' _G_dollar='\$' sed_double_backslash="\ s/$_G_bs4/&\\ /g s/^$_G_bs2$_G_dollar/$_G_bs&/ s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g s/\n//g" ## ----------------- ## ## Global variables. ## ## ----------------- ## # Except for the global variables explicitly listed below, the following # functions in the '^func_' namespace, and the '^require_' namespace # variables initialised in the 'Resource management' section, sourcing # this file will not pollute your global namespace with anything # else. There's no portable way to scope variables in Bourne shell # though, so actually running these functions will sometimes place # results into a variable named after the function, and often use # temporary variables in the '^_G_' namespace. If you are careful to # avoid using those namespaces casually in your sourcing script, things # should continue to work as you expect. And, of course, you can freely # overwrite any of the functions or variables defined here before # calling anything to customize them. EXIT_SUCCESS=0 EXIT_FAILURE=1 EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. # Allow overriding, eg assuming that you follow the convention of # putting '$debug_cmd' at the start of all your functions, you can get # bash to show function call trace with: # # debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name debug_cmd=${debug_cmd-":"} exit_cmd=: # By convention, finish your script with: # # exit $exit_status # # so that you can set exit_status to non-zero if you want to indicate # something went wrong during execution without actually bailing out at # the point of failure. exit_status=$EXIT_SUCCESS # Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh # is ksh but when the shell is invoked as "sh" and the current value of # the _XPG environment variable is not equal to 1 (one), the special # positional parameter $0, within a function call, is the name of the # function. progpath=$0 # The name of this program. progname=`$ECHO "$progpath" |$SED "$sed_basename"` # Make sure we have an absolute progpath for reexecution: case $progpath in [\\/]*|[A-Za-z]:\\*) ;; *[\\/]*) progdir=`$ECHO "$progpath" |$SED "$sed_dirname"` progdir=`cd "$progdir" && pwd` progpath=$progdir/$progname ;; *) _G_IFS=$IFS IFS=${PATH_SEPARATOR-:} for progdir in $PATH; do IFS=$_G_IFS test -x "$progdir/$progname" && break done IFS=$_G_IFS test -n "$progdir" || progdir=`pwd` progpath=$progdir/$progname ;; esac ## ----------------- ## ## Standard options. ## ## ----------------- ## # The following options affect the operation of the functions defined # below, and should be set appropriately depending on run-time para- # meters passed on the command line. opt_dry_run=false opt_quiet=false opt_verbose=false # Categories 'all' and 'none' are always available. Append any others # you will pass as the first argument to func_warning from your own # code. warning_categories= # By default, display warnings according to 'opt_warning_types'. Set # 'warning_func' to ':' to elide all warnings, or func_fatal_error to # treat the next displayed warning as a fatal error. warning_func=func_warn_and_continue # Set to 'all' to display all warnings, 'none' to suppress all # warnings, or a space delimited list of some subset of # 'warning_categories' to display only the listed warnings. opt_warning_types=all ## -------------------- ## ## Resource management. ## ## -------------------- ## # This section contains definitions for functions that each ensure a # particular resource (a file, or a non-empty configuration variable for # example) is available, and if appropriate to extract default values # from pertinent package files. Call them using their associated # 'require_*' variable to ensure that they are executed, at most, once. # # It's entirely deliberate that calling these functions can set # variables that don't obey the namespace limitations obeyed by the rest # of this file, in order that that they be as useful as possible to # callers. # require_term_colors # ------------------- # Allow display of bold text on terminals that support it. require_term_colors=func_require_term_colors func_require_term_colors () { $debug_cmd test -t 1 && { # COLORTERM and USE_ANSI_COLORS environment variables take # precedence, because most terminfo databases neglect to describe # whether color sequences are supported. test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} if test 1 = "$USE_ANSI_COLORS"; then # Standard ANSI escape sequences tc_reset='' tc_bold=''; tc_standout='' tc_red=''; tc_green='' tc_blue=''; tc_cyan='' else # Otherwise trust the terminfo database after all. test -n "`tput sgr0 2>/dev/null`" && { tc_reset=`tput sgr0` test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` tc_standout=$tc_bold test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` } fi } require_term_colors=: } ## ----------------- ## ## Function library. ## ## ----------------- ## # This section contains a variety of useful functions to call in your # scripts. Take note of the portable wrappers for features provided by # some modern shells, which will fall back to slower equivalents on # less featureful shells. # func_append VAR VALUE # --------------------- # Append VALUE onto the existing contents of VAR. # We should try to minimise forks, especially on Windows where they are # unreasonably slow, so skip the feature probes when bash or zsh are # being used: if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then : ${_G_HAVE_ARITH_OP="yes"} : ${_G_HAVE_XSI_OPS="yes"} # The += operator was introduced in bash 3.1 case $BASH_VERSION in [12].* | 3.0 | 3.0*) ;; *) : ${_G_HAVE_PLUSEQ_OP="yes"} ;; esac fi # _G_HAVE_PLUSEQ_OP # Can be empty, in which case the shell is probed, "yes" if += is # useable or anything else if it does not work. test -z "$_G_HAVE_PLUSEQ_OP" \ && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \ && _G_HAVE_PLUSEQ_OP=yes if test yes = "$_G_HAVE_PLUSEQ_OP" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_append () { $debug_cmd eval "$1+=\$2" }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_append () { $debug_cmd eval "$1=\$$1\$2" } fi # func_append_quoted VAR VALUE # ---------------------------- # Quote VALUE and append to the end of shell variable VAR, separated # by a space. if test yes = "$_G_HAVE_PLUSEQ_OP"; then eval 'func_append_quoted () { $debug_cmd func_quote_for_eval "$2" eval "$1+=\\ \$func_quote_for_eval_result" }' else func_append_quoted () { $debug_cmd func_quote_for_eval "$2" eval "$1=\$$1\\ \$func_quote_for_eval_result" } fi # func_append_uniq VAR VALUE # -------------------------- # Append unique VALUE onto the existing contents of VAR, assuming # entries are delimited by the first character of VALUE. For example: # # func_append_uniq options " --another-option option-argument" # # will only append to $options if " --another-option option-argument " # is not already present somewhere in $options already (note spaces at # each end implied by leading space in second argument). func_append_uniq () { $debug_cmd eval _G_current_value='`$ECHO $'$1'`' _G_delim=`expr "$2" : '\(.\)'` case $_G_delim$_G_current_value$_G_delim in *"$2$_G_delim"*) ;; *) func_append "$@" ;; esac } # func_arith TERM... # ------------------ # Set func_arith_result to the result of evaluating TERMs. test -z "$_G_HAVE_ARITH_OP" \ && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \ && _G_HAVE_ARITH_OP=yes if test yes = "$_G_HAVE_ARITH_OP"; then eval 'func_arith () { $debug_cmd func_arith_result=$(( $* )) }' else func_arith () { $debug_cmd func_arith_result=`expr "$@"` } fi # func_basename FILE # ------------------ # Set func_basename_result to FILE with everything up to and including # the last / stripped. if test yes = "$_G_HAVE_XSI_OPS"; then # If this shell supports suffix pattern removal, then use it to avoid # forking. Hide the definitions single quotes in case the shell chokes # on unsupported syntax... _b='func_basename_result=${1##*/}' _d='case $1 in */*) func_dirname_result=${1%/*}$2 ;; * ) func_dirname_result=$3 ;; esac' else # ...otherwise fall back to using sed. _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`' _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"` if test "X$func_dirname_result" = "X$1"; then func_dirname_result=$3 else func_append func_dirname_result "$2" fi' fi eval 'func_basename () { $debug_cmd '"$_b"' }' # func_dirname FILE APPEND NONDIR_REPLACEMENT # ------------------------------------------- # Compute the dirname of FILE. If nonempty, add APPEND to the result, # otherwise set result to NONDIR_REPLACEMENT. eval 'func_dirname () { $debug_cmd '"$_d"' }' # func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT # -------------------------------------------------------- # Perform func_basename and func_dirname in a single function # call: # dirname: Compute the dirname of FILE. If nonempty, # add APPEND to the result, otherwise set result # to NONDIR_REPLACEMENT. # value returned in "$func_dirname_result" # basename: Compute filename of FILE. # value retuned in "$func_basename_result" # For efficiency, we do not delegate to the functions above but instead # duplicate the functionality here. eval 'func_dirname_and_basename () { $debug_cmd '"$_b"' '"$_d"' }' # func_echo ARG... # ---------------- # Echo program name prefixed message. func_echo () { $debug_cmd _G_message=$* func_echo_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_IFS $ECHO "$progname: $_G_line" done IFS=$func_echo_IFS } # func_echo_all ARG... # -------------------- # Invoke $ECHO with all args, space-separated. func_echo_all () { $ECHO "$*" } # func_echo_infix_1 INFIX ARG... # ------------------------------ # Echo program name, followed by INFIX on the first line, with any # additional lines not showing INFIX. func_echo_infix_1 () { $debug_cmd $require_term_colors _G_infix=$1; shift _G_indent=$_G_infix _G_prefix="$progname: $_G_infix: " _G_message=$* # Strip color escape sequences before counting printable length for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan" do test -n "$_G_tc" && { _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"` _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"` } done _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes func_echo_infix_1_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_infix_1_IFS $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2 _G_prefix=$_G_indent done IFS=$func_echo_infix_1_IFS } # func_error ARG... # ----------------- # Echo program name prefixed message to standard error. func_error () { $debug_cmd $require_term_colors func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2 } # func_fatal_error ARG... # ----------------------- # Echo program name prefixed message to standard error, and exit. func_fatal_error () { $debug_cmd func_error "$*" exit $EXIT_FAILURE } # func_grep EXPRESSION FILENAME # ----------------------------- # Check whether EXPRESSION matches any line of FILENAME, without output. func_grep () { $debug_cmd $GREP "$1" "$2" >/dev/null 2>&1 } # func_len STRING # --------------- # Set func_len_result to the length of STRING. STRING may not # start with a hyphen. test -z "$_G_HAVE_XSI_OPS" \ && (eval 'x=a/b/c; test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ && _G_HAVE_XSI_OPS=yes if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_len () { $debug_cmd func_len_result=${#1} }' else func_len () { $debug_cmd func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` } fi # func_mkdir_p DIRECTORY-PATH # --------------------------- # Make sure the entire path to DIRECTORY-PATH is available. func_mkdir_p () { $debug_cmd _G_directory_path=$1 _G_dir_list= if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then # Protect directory names starting with '-' case $_G_directory_path in -*) _G_directory_path=./$_G_directory_path ;; esac # While some portion of DIR does not yet exist... while test ! -d "$_G_directory_path"; do # ...make a list in topmost first order. Use a colon delimited # list incase some portion of path contains whitespace. _G_dir_list=$_G_directory_path:$_G_dir_list # If the last portion added has no slash in it, the list is done case $_G_directory_path in */*) ;; *) break ;; esac # ...otherwise throw away the child directory and loop _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` done _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` func_mkdir_p_IFS=$IFS; IFS=: for _G_dir in $_G_dir_list; do IFS=$func_mkdir_p_IFS # mkdir can fail with a 'File exist' error if two processes # try to create one of the directories concurrently. Don't # stop in that case! $MKDIR "$_G_dir" 2>/dev/null || : done IFS=$func_mkdir_p_IFS # Bail out if we (or some other process) failed to create a directory. test -d "$_G_directory_path" || \ func_fatal_error "Failed to create '$1'" fi } # func_mktempdir [BASENAME] # ------------------------- # Make a temporary directory that won't clash with other running # libtool processes, and avoids race conditions if possible. If # given, BASENAME is the basename for that directory. func_mktempdir () { $debug_cmd _G_template=${TMPDIR-/tmp}/${1-$progname} if test : = "$opt_dry_run"; then # Return a directory name, but don't create it in dry-run mode _G_tmpdir=$_G_template-$$ else # If mktemp works, use that first and foremost _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` if test ! -d "$_G_tmpdir"; then # Failing that, at least try and use $RANDOM to avoid a race _G_tmpdir=$_G_template-${RANDOM-0}$$ func_mktempdir_umask=`umask` umask 0077 $MKDIR "$_G_tmpdir" umask $func_mktempdir_umask fi # If we're not in dry-run mode, bomb out on failure test -d "$_G_tmpdir" || \ func_fatal_error "cannot create temporary directory '$_G_tmpdir'" fi $ECHO "$_G_tmpdir" } # func_normal_abspath PATH # ------------------------ # Remove doubled-up and trailing slashes, "." path components, # and cancel out any ".." path components in PATH after making # it an absolute path. func_normal_abspath () { $debug_cmd # These SED scripts presuppose an absolute path with a trailing slash. _G_pathcar='s|^/\([^/]*\).*$|\1|' _G_pathcdr='s|^/[^/]*||' _G_removedotparts=':dotsl s|/\./|/|g t dotsl s|/\.$|/|' _G_collapseslashes='s|/\{1,\}|/|g' _G_finalslash='s|/*$|/|' # Start from root dir and reassemble the path. func_normal_abspath_result= func_normal_abspath_tpath=$1 func_normal_abspath_altnamespace= case $func_normal_abspath_tpath in "") # Empty path, that just means $cwd. func_stripname '' '/' "`pwd`" func_normal_abspath_result=$func_stripname_result return ;; # The next three entries are used to spot a run of precisely # two leading slashes without using negated character classes; # we take advantage of case's first-match behaviour. ///*) # Unusual form of absolute path, do nothing. ;; //*) # Not necessarily an ordinary path; POSIX reserves leading '//' # and for example Cygwin uses it to access remote file shares # over CIFS/SMB, so we conserve a leading double slash if found. func_normal_abspath_altnamespace=/ ;; /*) # Absolute path, do nothing. ;; *) # Relative path, prepend $cwd. func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath ;; esac # Cancel out all the simple stuff to save iterations. We also want # the path to end with a slash for ease of parsing, so make sure # there is one (and only one) here. func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` while :; do # Processed it all yet? if test / = "$func_normal_abspath_tpath"; then # If we ascended to the root using ".." the result may be empty now. if test -z "$func_normal_abspath_result"; then func_normal_abspath_result=/ fi break fi func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_pathcar"` func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_pathcdr"` # Figure out what to do with it case $func_normal_abspath_tcomponent in "") # Trailing empty path component, ignore it. ;; ..) # Parent dir; strip last assembled component from result. func_dirname "$func_normal_abspath_result" func_normal_abspath_result=$func_dirname_result ;; *) # Actual path component, append it. func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" ;; esac done # Restore leading double-slash if one was found on entry. func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result } # func_notquiet ARG... # -------------------- # Echo program name prefixed message only when not in quiet mode. func_notquiet () { $debug_cmd $opt_quiet || func_echo ${1+"$@"} # A bug in bash halts the script if the last line of a function # fails when set -e is in force, so we need another command to # work around that: : } # func_relative_path SRCDIR DSTDIR # -------------------------------- # Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. func_relative_path () { $debug_cmd func_relative_path_result= func_normal_abspath "$1" func_relative_path_tlibdir=$func_normal_abspath_result func_normal_abspath "$2" func_relative_path_tbindir=$func_normal_abspath_result # Ascend the tree starting from libdir while :; do # check if we have found a prefix of bindir case $func_relative_path_tbindir in $func_relative_path_tlibdir) # found an exact match func_relative_path_tcancelled= break ;; $func_relative_path_tlibdir*) # found a matching prefix func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" func_relative_path_tcancelled=$func_stripname_result if test -z "$func_relative_path_result"; then func_relative_path_result=. fi break ;; *) func_dirname $func_relative_path_tlibdir func_relative_path_tlibdir=$func_dirname_result if test -z "$func_relative_path_tlibdir"; then # Have to descend all the way to the root! func_relative_path_result=../$func_relative_path_result func_relative_path_tcancelled=$func_relative_path_tbindir break fi func_relative_path_result=../$func_relative_path_result ;; esac done # Now calculate path; take care to avoid doubling-up slashes. func_stripname '' '/' "$func_relative_path_result" func_relative_path_result=$func_stripname_result func_stripname '/' '/' "$func_relative_path_tcancelled" if test -n "$func_stripname_result"; then func_append func_relative_path_result "/$func_stripname_result" fi # Normalisation. If bindir is libdir, return '.' else relative path. if test -n "$func_relative_path_result"; then func_stripname './' '' "$func_relative_path_result" func_relative_path_result=$func_stripname_result fi test -n "$func_relative_path_result" || func_relative_path_result=. : } # func_quote_for_eval ARG... # -------------------------- # Aesthetically quote ARGs to be evaled later. # This function returns two values: # i) func_quote_for_eval_result # double-quoted, suitable for a subsequent eval # ii) func_quote_for_eval_unquoted_result # has all characters that are still active within double # quotes backslashified. func_quote_for_eval () { $debug_cmd func_quote_for_eval_unquoted_result= func_quote_for_eval_result= while test 0 -lt $#; do case $1 in *[\\\`\"\$]*) _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; *) _G_unquoted_arg=$1 ;; esac if test -n "$func_quote_for_eval_unquoted_result"; then func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" else func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" fi case $_G_unquoted_arg in # Double-quote args containing shell metacharacters to delay # word splitting, command substitution and variable expansion # for a subsequent eval. # Many Bourne shells cannot handle close brackets correctly # in scan sets, so we specify it separately. *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") _G_quoted_arg=\"$_G_unquoted_arg\" ;; *) _G_quoted_arg=$_G_unquoted_arg ;; esac if test -n "$func_quote_for_eval_result"; then func_append func_quote_for_eval_result " $_G_quoted_arg" else func_append func_quote_for_eval_result "$_G_quoted_arg" fi shift done } # func_quote_for_expand ARG # ------------------------- # Aesthetically quote ARG to be evaled later; same as above, # but do not quote variable references. func_quote_for_expand () { $debug_cmd case $1 in *[\\\`\"]*) _G_arg=`$ECHO "$1" | $SED \ -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; *) _G_arg=$1 ;; esac case $_G_arg in # Double-quote args containing shell metacharacters to delay # word splitting and command substitution for a subsequent eval. # Many Bourne shells cannot handle close brackets correctly # in scan sets, so we specify it separately. *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") _G_arg=\"$_G_arg\" ;; esac func_quote_for_expand_result=$_G_arg } # func_stripname PREFIX SUFFIX NAME # --------------------------------- # strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. # PREFIX and SUFFIX must not contain globbing or regex special # characters, hashes, percent signs, but SUFFIX may contain a leading # dot (in which case that matches only a dot). if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_stripname () { $debug_cmd # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are # positional parameters, so assign one to ordinary variable first. func_stripname_result=$3 func_stripname_result=${func_stripname_result#"$1"} func_stripname_result=${func_stripname_result%"$2"} }' else func_stripname () { $debug_cmd case $2 in .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; esac } fi # func_show_eval CMD [FAIL_EXP] # ----------------------------- # Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is # not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP # is given, then evaluate it. func_show_eval () { $debug_cmd _G_cmd=$1 _G_fail_exp=${2-':'} func_quote_for_expand "$_G_cmd" eval "func_notquiet $func_quote_for_expand_result" $opt_dry_run || { eval "$_G_cmd" _G_status=$? if test 0 -ne "$_G_status"; then eval "(exit $_G_status); $_G_fail_exp" fi } } # func_show_eval_locale CMD [FAIL_EXP] # ------------------------------------ # Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is # not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP # is given, then evaluate it. Use the saved locale for evaluation. func_show_eval_locale () { $debug_cmd _G_cmd=$1 _G_fail_exp=${2-':'} $opt_quiet || { func_quote_for_expand "$_G_cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || { eval "$_G_user_locale $_G_cmd" _G_status=$? eval "$_G_safe_locale" if test 0 -ne "$_G_status"; then eval "(exit $_G_status); $_G_fail_exp" fi } } # func_tr_sh # ---------- # Turn $1 into a string suitable for a shell variable name. # Result is stored in $func_tr_sh_result. All characters # not in the set a-zA-Z0-9_ are replaced with '_'. Further, # if $1 begins with a digit, a '_' is prepended as well. func_tr_sh () { $debug_cmd case $1 in [0-9]* | *[!a-zA-Z0-9_]*) func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` ;; * ) func_tr_sh_result=$1 ;; esac } # func_verbose ARG... # ------------------- # Echo program name prefixed message in verbose mode only. func_verbose () { $debug_cmd $opt_verbose && func_echo "$*" : } # func_warn_and_continue ARG... # ----------------------------- # Echo program name prefixed warning message to standard error. func_warn_and_continue () { $debug_cmd $require_term_colors func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 } # func_warning CATEGORY ARG... # ---------------------------- # Echo program name prefixed warning message to standard error. Warning # messages can be filtered according to CATEGORY, where this function # elides messages where CATEGORY is not listed in the global variable # 'opt_warning_types'. func_warning () { $debug_cmd # CATEGORY must be in the warning_categories list! case " $warning_categories " in *" $1 "*) ;; *) func_internal_error "invalid warning category '$1'" ;; esac _G_category=$1 shift case " $opt_warning_types " in *" $_G_category "*) $warning_func ${1+"$@"} ;; esac } # func_sort_ver VER1 VER2 # ----------------------- # 'sort -V' is not generally available. # Note this deviates from the version comparison in automake # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a # but this should suffice as we won't be specifying old # version formats or redundant trailing .0 in bootstrap.conf. # If we did want full compatibility then we should probably # use m4_version_compare from autoconf. func_sort_ver () { $debug_cmd printf '%s\n%s\n' "$1" "$2" \ | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n } # func_lt_ver PREV CURR # --------------------- # Return true if PREV and CURR are in the correct order according to # func_sort_ver, otherwise false. Use it like this: # # func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." func_lt_ver () { $debug_cmd test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` } # Local variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" # time-stamp-time-zone: "UTC" # End: #! /bin/sh # Set a version string for this script. scriptversion=2014-01-07.03; # UTC # A portable, pluggable option parser for Bourne shell. # Written by Gary V. Vaughan, 2010 # Copyright (C) 2010-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # Please report bugs or propose patches to gary@gnu.org. ## ------ ## ## Usage. ## ## ------ ## # This file is a library for parsing options in your shell scripts along # with assorted other useful supporting features that you can make use # of too. # # For the simplest scripts you might need only: # # #!/bin/sh # . relative/path/to/funclib.sh # . relative/path/to/options-parser # scriptversion=1.0 # func_options ${1+"$@"} # eval set dummy "$func_options_result"; shift # ...rest of your script... # # In order for the '--version' option to work, you will need to have a # suitably formatted comment like the one at the top of this file # starting with '# Written by ' and ending with '# warranty; '. # # For '-h' and '--help' to work, you will also need a one line # description of your script's purpose in a comment directly above the # '# Written by ' line, like the one at the top of this file. # # The default options also support '--debug', which will turn on shell # execution tracing (see the comment above debug_cmd below for another # use), and '--verbose' and the func_verbose function to allow your script # to display verbose messages only when your user has specified # '--verbose'. # # After sourcing this file, you can plug processing for additional # options by amending the variables from the 'Configuration' section # below, and following the instructions in the 'Option parsing' # section further down. ## -------------- ## ## Configuration. ## ## -------------- ## # You should override these variables in your script after sourcing this # file so that they reflect the customisations you have added to the # option parser. # The usage line for option parsing errors and the start of '-h' and # '--help' output messages. You can embed shell variables for delayed # expansion at the time the message is displayed, but you will need to # quote other shell meta-characters carefully to prevent them being # expanded when the contents are evaled. usage='$progpath [OPTION]...' # Short help message in response to '-h' and '--help'. Add to this or # override it after sourcing this library to reflect the full set of # options your script accepts. usage_message="\ --debug enable verbose shell tracing -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] -v, --verbose verbosely report processing --version print version information and exit -h, --help print short or long help message and exit " # Additional text appended to 'usage_message' in response to '--help'. long_help_message=" Warning categories include: 'all' show all warnings 'none' turn off all the warnings 'error' warnings are treated as fatal errors" # Help message printed before fatal option parsing errors. fatal_help="Try '\$progname --help' for more information." ## ------------------------- ## ## Hook function management. ## ## ------------------------- ## # This section contains functions for adding, removing, and running hooks # to the main code. A hook is just a named list of of function, that can # be run in order later on. # func_hookable FUNC_NAME # ----------------------- # Declare that FUNC_NAME will run hooks added with # 'func_add_hook FUNC_NAME ...'. func_hookable () { $debug_cmd func_append hookable_fns " $1" } # func_add_hook FUNC_NAME HOOK_FUNC # --------------------------------- # Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must # first have been declared "hookable" by a call to 'func_hookable'. func_add_hook () { $debug_cmd case " $hookable_fns " in *" $1 "*) ;; *) func_fatal_error "'$1' does not accept hook functions." ;; esac eval func_append ${1}_hooks '" $2"' } # func_remove_hook FUNC_NAME HOOK_FUNC # ------------------------------------ # Remove HOOK_FUNC from the list of functions called by FUNC_NAME. func_remove_hook () { $debug_cmd eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' } # func_run_hooks FUNC_NAME [ARG]... # --------------------------------- # Run all hook functions registered to FUNC_NAME. # It is assumed that the list of hook functions contains nothing more # than a whitespace-delimited list of legal shell function names, and # no effort is wasted trying to catch shell meta-characters or preserve # whitespace. func_run_hooks () { $debug_cmd case " $hookable_fns " in *" $1 "*) ;; *) func_fatal_error "'$1' does not support hook funcions.n" ;; esac eval _G_hook_fns=\$$1_hooks; shift for _G_hook in $_G_hook_fns; do eval $_G_hook '"$@"' # store returned options list back into positional # parameters for next 'cmd' execution. eval _G_hook_result=\$${_G_hook}_result eval set dummy "$_G_hook_result"; shift done func_quote_for_eval ${1+"$@"} func_run_hooks_result=$func_quote_for_eval_result } ## --------------- ## ## Option parsing. ## ## --------------- ## # In order to add your own option parsing hooks, you must accept the # full positional parameter list in your hook function, remove any # options that you action, and then pass back the remaining unprocessed # options in '_result', escaped suitably for # 'eval'. Like this: # # my_options_prep () # { # $debug_cmd # # # Extend the existing usage message. # usage_message=$usage_message' # -s, --silent don'\''t print informational messages # ' # # func_quote_for_eval ${1+"$@"} # my_options_prep_result=$func_quote_for_eval_result # } # func_add_hook func_options_prep my_options_prep # # # my_silent_option () # { # $debug_cmd # # # Note that for efficiency, we parse as many options as we can # # recognise in a loop before passing the remainder back to the # # caller on the first unrecognised argument we encounter. # while test $# -gt 0; do # opt=$1; shift # case $opt in # --silent|-s) opt_silent=: ;; # # Separate non-argument short options: # -s*) func_split_short_opt "$_G_opt" # set dummy "$func_split_short_opt_name" \ # "-$func_split_short_opt_arg" ${1+"$@"} # shift # ;; # *) set dummy "$_G_opt" "$*"; shift; break ;; # esac # done # # func_quote_for_eval ${1+"$@"} # my_silent_option_result=$func_quote_for_eval_result # } # func_add_hook func_parse_options my_silent_option # # # my_option_validation () # { # $debug_cmd # # $opt_silent && $opt_verbose && func_fatal_help "\ # '--silent' and '--verbose' options are mutually exclusive." # # func_quote_for_eval ${1+"$@"} # my_option_validation_result=$func_quote_for_eval_result # } # func_add_hook func_validate_options my_option_validation # # You'll alse need to manually amend $usage_message to reflect the extra # options you parse. It's preferable to append if you can, so that # multiple option parsing hooks can be added safely. # func_options [ARG]... # --------------------- # All the functions called inside func_options are hookable. See the # individual implementations for details. func_hookable func_options func_options () { $debug_cmd func_options_prep ${1+"$@"} eval func_parse_options \ ${func_options_prep_result+"$func_options_prep_result"} eval func_validate_options \ ${func_parse_options_result+"$func_parse_options_result"} eval func_run_hooks func_options \ ${func_validate_options_result+"$func_validate_options_result"} # save modified positional parameters for caller func_options_result=$func_run_hooks_result } # func_options_prep [ARG]... # -------------------------- # All initialisations required before starting the option parse loop. # Note that when calling hook functions, we pass through the list of # positional parameters. If a hook function modifies that list, and # needs to propogate that back to rest of this script, then the complete # modified list must be put in 'func_run_hooks_result' before # returning. func_hookable func_options_prep func_options_prep () { $debug_cmd # Option defaults: opt_verbose=false opt_warning_types= func_run_hooks func_options_prep ${1+"$@"} # save modified positional parameters for caller func_options_prep_result=$func_run_hooks_result } # func_parse_options [ARG]... # --------------------------- # The main option parsing loop. func_hookable func_parse_options func_parse_options () { $debug_cmd func_parse_options_result= # this just eases exit handling while test $# -gt 0; do # Defer to hook functions for initial option parsing, so they # get priority in the event of reusing an option name. func_run_hooks func_parse_options ${1+"$@"} # Adjust func_parse_options positional parameters to match eval set dummy "$func_run_hooks_result"; shift # Break out of the loop if we already parsed every option. test $# -gt 0 || break _G_opt=$1 shift case $_G_opt in --debug|-x) debug_cmd='set -x' func_echo "enabling shell trace mode" $debug_cmd ;; --no-warnings|--no-warning|--no-warn) set dummy --warnings none ${1+"$@"} shift ;; --warnings|--warning|-W) test $# = 0 && func_missing_arg $_G_opt && break case " $warning_categories $1" in *" $1 "*) # trailing space prevents matching last $1 above func_append_uniq opt_warning_types " $1" ;; *all) opt_warning_types=$warning_categories ;; *none) opt_warning_types=none warning_func=: ;; *error) opt_warning_types=$warning_categories warning_func=func_fatal_error ;; *) func_fatal_error \ "unsupported warning category: '$1'" ;; esac shift ;; --verbose|-v) opt_verbose=: ;; --version) func_version ;; -\?|-h) func_usage ;; --help) func_help ;; # Separate optargs to long options (plugins may need this): --*=*) func_split_equals "$_G_opt" set dummy "$func_split_equals_lhs" \ "$func_split_equals_rhs" ${1+"$@"} shift ;; # Separate optargs to short options: -W*) func_split_short_opt "$_G_opt" set dummy "$func_split_short_opt_name" \ "$func_split_short_opt_arg" ${1+"$@"} shift ;; # Separate non-argument short options: -\?*|-h*|-v*|-x*) func_split_short_opt "$_G_opt" set dummy "$func_split_short_opt_name" \ "-$func_split_short_opt_arg" ${1+"$@"} shift ;; --) break ;; -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; esac done # save modified positional parameters for caller func_quote_for_eval ${1+"$@"} func_parse_options_result=$func_quote_for_eval_result } # func_validate_options [ARG]... # ------------------------------ # Perform any sanity checks on option settings and/or unconsumed # arguments. func_hookable func_validate_options func_validate_options () { $debug_cmd # Display all warnings if -W was not given. test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" func_run_hooks func_validate_options ${1+"$@"} # Bail if the options were screwed! $exit_cmd $EXIT_FAILURE # save modified positional parameters for caller func_validate_options_result=$func_run_hooks_result } ## ----------------- ## ## Helper functions. ## ## ----------------- ## # This section contains the helper functions used by the rest of the # hookable option parser framework in ascii-betical order. # func_fatal_help ARG... # ---------------------- # Echo program name prefixed message to standard error, followed by # a help hint, and exit. func_fatal_help () { $debug_cmd eval \$ECHO \""Usage: $usage"\" eval \$ECHO \""$fatal_help"\" func_error ${1+"$@"} exit $EXIT_FAILURE } # func_help # --------- # Echo long help message to standard output and exit. func_help () { $debug_cmd func_usage_message $ECHO "$long_help_message" exit 0 } # func_missing_arg ARGNAME # ------------------------ # Echo program name prefixed message to standard error and set global # exit_cmd. func_missing_arg () { $debug_cmd func_error "Missing argument for '$1'." exit_cmd=exit } # func_split_equals STRING # ------------------------ # Set func_split_equals_lhs and func_split_equals_rhs shell variables after # splitting STRING at the '=' sign. test -z "$_G_HAVE_XSI_OPS" \ && (eval 'x=a/b/c; test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ && _G_HAVE_XSI_OPS=yes if test yes = "$_G_HAVE_XSI_OPS" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_split_equals () { $debug_cmd func_split_equals_lhs=${1%%=*} func_split_equals_rhs=${1#*=} test "x$func_split_equals_lhs" = "x$1" \ && func_split_equals_rhs= }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_split_equals () { $debug_cmd func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` func_split_equals_rhs= test "x$func_split_equals_lhs" = "x$1" \ || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` } fi #func_split_equals # func_split_short_opt SHORTOPT # ----------------------------- # Set func_split_short_opt_name and func_split_short_opt_arg shell # variables after splitting SHORTOPT after the 2nd character. if test yes = "$_G_HAVE_XSI_OPS" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_split_short_opt () { $debug_cmd func_split_short_opt_arg=${1#??} func_split_short_opt_name=${1%"$func_split_short_opt_arg"} }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_split_short_opt () { $debug_cmd func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` } fi #func_split_short_opt # func_usage # ---------- # Echo short help message to standard output and exit. func_usage () { $debug_cmd func_usage_message $ECHO "Run '$progname --help |${PAGER-more}' for full usage" exit 0 } # func_usage_message # ------------------ # Echo short help message to standard output. func_usage_message () { $debug_cmd eval \$ECHO \""Usage: $usage"\" echo $SED -n 's|^# || /^Written by/{ x;p;x } h /^Written by/q' < "$progpath" echo eval \$ECHO \""$usage_message"\" } # func_version # ------------ # Echo version message to standard output and exit. func_version () { $debug_cmd printf '%s\n' "$progname $scriptversion" $SED -n ' /(C)/!b go :more /\./!{ N s|\n# | | b more } :go /^# Written by /,/# warranty; / { s|^# || s|^# *$|| s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| p } /^# Written by / { s|^# || p } /^warranty; /q' < "$progpath" exit $? } # Local variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" # time-stamp-time-zone: "UTC" # End: # Set a version string. scriptversion='(GNU libtool) 2.4.6' # func_echo ARG... # ---------------- # Libtool also displays the current mode in messages, so override # funclib.sh func_echo with this custom definition. func_echo () { $debug_cmd _G_message=$* func_echo_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_IFS $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" done IFS=$func_echo_IFS } # func_warning ARG... # ------------------- # Libtool warnings are not categorized, so override funclib.sh # func_warning with this simpler definition. func_warning () { $debug_cmd $warning_func ${1+"$@"} } ## ---------------- ## ## Options parsing. ## ## ---------------- ## # Hook in the functions to make sure our own options are parsed during # the option parsing loop. usage='$progpath [OPTION]... [MODE-ARG]...' # Short help message in response to '-h'. usage_message="Options: --config show all configuration variables --debug enable verbose shell tracing -n, --dry-run display commands without modifying any files --features display basic configuration information and exit --mode=MODE use operation mode MODE --no-warnings equivalent to '-Wnone' --preserve-dup-deps don't remove duplicate dependency libraries --quiet, --silent don't print informational messages --tag=TAG use configuration variables from tag TAG -v, --verbose print more informational messages than default --version print version information -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] -h, --help, --help-all print short, long, or detailed help message " # Additional text appended to 'usage_message' in response to '--help'. func_help () { $debug_cmd func_usage_message $ECHO "$long_help_message MODE must be one of the following: clean remove files from the build directory compile compile a source file into a libtool object execute automatically set library path, then run a program finish complete the installation of libtool libraries install install libraries or executables link create a library or an executable uninstall remove libraries from an installed directory MODE-ARGS vary depending on the MODE. When passed as first option, '--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. Try '$progname --help --mode=MODE' for a more detailed description of MODE. When reporting a bug, please describe a test case to reproduce it and include the following information: host-triplet: $host shell: $SHELL compiler: $LTCC compiler flags: $LTCFLAGS linker: $LD (gnu? $with_gnu_ld) version: $progname $scriptversion Debian-2.4.6-2 automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` Report bugs to . GNU libtool home page: . General help using GNU software: ." exit 0 } # func_lo2o OBJECT-NAME # --------------------- # Transform OBJECT-NAME from a '.lo' suffix to the platform specific # object suffix. lo2o=s/\\.lo\$/.$objext/ o2lo=s/\\.$objext\$/.lo/ if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_lo2o () { case $1 in *.lo) func_lo2o_result=${1%.lo}.$objext ;; * ) func_lo2o_result=$1 ;; esac }' # func_xform LIBOBJ-OR-SOURCE # --------------------------- # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) # suffix to a '.lo' libtool-object suffix. eval 'func_xform () { func_xform_result=${1%.*}.lo }' else # ...otherwise fall back to using sed. func_lo2o () { func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` } func_xform () { func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` } fi # func_fatal_configuration ARG... # ------------------------------- # Echo program name prefixed message to standard error, followed by # a configuration failure hint, and exit. func_fatal_configuration () { func__fatal_error ${1+"$@"} \ "See the $PACKAGE documentation for more information." \ "Fatal configuration error." } # func_config # ----------- # Display the configuration for all the tags in this script. func_config () { re_begincf='^# ### BEGIN LIBTOOL' re_endcf='^# ### END LIBTOOL' # Default configuration. $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" # Now print the configurations for the tags. for tagname in $taglist; do $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" done exit $? } # func_features # ------------- # Display the features supported by this script. func_features () { echo "host: $host" if test yes = "$build_libtool_libs"; then echo "enable shared libraries" else echo "disable shared libraries" fi if test yes = "$build_old_libs"; then echo "enable static libraries" else echo "disable static libraries" fi exit $? } # func_enable_tag TAGNAME # ----------------------- # Verify that TAGNAME is valid, and either flag an error and exit, or # enable the TAGNAME tag. We also add TAGNAME to the global $taglist # variable here. func_enable_tag () { # Global variable: tagname=$1 re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" sed_extractcf=/$re_begincf/,/$re_endcf/p # Validate tagname. case $tagname in *[!-_A-Za-z0-9,/]*) func_fatal_error "invalid tag name: $tagname" ;; esac # Don't test for the "default" C tag, as we know it's # there but not specially marked. case $tagname in CC) ;; *) if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then taglist="$taglist $tagname" # Evaluate the configuration. Be careful to quote the path # and the sed script, to avoid splitting on whitespace, but # also don't use non-portable quotes within backquotes within # quotes we have to do it in 2 steps: extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` eval "$extractedcf" else func_error "ignoring unknown tag $tagname" fi ;; esac } # func_check_version_match # ------------------------ # Ensure that we are using m4 macros, and libtool script from the same # release of libtool. func_check_version_match () { if test "$package_revision" != "$macro_revision"; then if test "$VERSION" != "$macro_version"; then if test -z "$macro_version"; then cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, but the $progname: definition of this LT_INIT comes from an older release. $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION $progname: and run autoconf again. _LT_EOF else cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, but the $progname: definition of this LT_INIT comes from $PACKAGE $macro_version. $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION $progname: and run autoconf again. _LT_EOF fi else cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, $progname: but the definition of this LT_INIT comes from revision $macro_revision. $progname: You should recreate aclocal.m4 with macros from revision $package_revision $progname: of $PACKAGE $VERSION and run autoconf again. _LT_EOF fi exit $EXIT_MISMATCH fi } # libtool_options_prep [ARG]... # ----------------------------- # Preparation for options parsed by libtool. libtool_options_prep () { $debug_mode # Option defaults: opt_config=false opt_dlopen= opt_dry_run=false opt_help=false opt_mode= opt_preserve_dup_deps=false opt_quiet=false nonopt= preserve_args= # Shorthand for --mode=foo, only valid as the first argument case $1 in clean|clea|cle|cl) shift; set dummy --mode clean ${1+"$@"}; shift ;; compile|compil|compi|comp|com|co|c) shift; set dummy --mode compile ${1+"$@"}; shift ;; execute|execut|execu|exec|exe|ex|e) shift; set dummy --mode execute ${1+"$@"}; shift ;; finish|finis|fini|fin|fi|f) shift; set dummy --mode finish ${1+"$@"}; shift ;; install|instal|insta|inst|ins|in|i) shift; set dummy --mode install ${1+"$@"}; shift ;; link|lin|li|l) shift; set dummy --mode link ${1+"$@"}; shift ;; uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) shift; set dummy --mode uninstall ${1+"$@"}; shift ;; esac # Pass back the list of options. func_quote_for_eval ${1+"$@"} libtool_options_prep_result=$func_quote_for_eval_result } func_add_hook func_options_prep libtool_options_prep # libtool_parse_options [ARG]... # --------------------------------- # Provide handling for libtool specific options. libtool_parse_options () { $debug_cmd # Perform our own loop to consume as many options as possible in # each iteration. while test $# -gt 0; do _G_opt=$1 shift case $_G_opt in --dry-run|--dryrun|-n) opt_dry_run=: ;; --config) func_config ;; --dlopen|-dlopen) opt_dlopen="${opt_dlopen+$opt_dlopen }$1" shift ;; --preserve-dup-deps) opt_preserve_dup_deps=: ;; --features) func_features ;; --finish) set dummy --mode finish ${1+"$@"}; shift ;; --help) opt_help=: ;; --help-all) opt_help=': help-all' ;; --mode) test $# = 0 && func_missing_arg $_G_opt && break opt_mode=$1 case $1 in # Valid mode arguments: clean|compile|execute|finish|install|link|relink|uninstall) ;; # Catch anything else as an error *) func_error "invalid argument for $_G_opt" exit_cmd=exit break ;; esac shift ;; --no-silent|--no-quiet) opt_quiet=false func_append preserve_args " $_G_opt" ;; --no-warnings|--no-warning|--no-warn) opt_warning=false func_append preserve_args " $_G_opt" ;; --no-verbose) opt_verbose=false func_append preserve_args " $_G_opt" ;; --silent|--quiet) opt_quiet=: opt_verbose=false func_append preserve_args " $_G_opt" ;; --tag) test $# = 0 && func_missing_arg $_G_opt && break opt_tag=$1 func_append preserve_args " $_G_opt $1" func_enable_tag "$1" shift ;; --verbose|-v) opt_quiet=false opt_verbose=: func_append preserve_args " $_G_opt" ;; # An option not handled by this hook function: *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; esac done # save modified positional parameters for caller func_quote_for_eval ${1+"$@"} libtool_parse_options_result=$func_quote_for_eval_result } func_add_hook func_parse_options libtool_parse_options # libtool_validate_options [ARG]... # --------------------------------- # Perform any sanity checks on option settings and/or unconsumed # arguments. libtool_validate_options () { # save first non-option argument if test 0 -lt $#; then nonopt=$1 shift fi # preserve --debug test : = "$debug_cmd" || func_append preserve_args " --debug" case $host in # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) # don't eliminate duplications in $postdeps and $predeps opt_duplicate_compiler_generated_deps=: ;; *) opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps ;; esac $opt_help || { # Sanity checks first: func_check_version_match test yes != "$build_libtool_libs" \ && test yes != "$build_old_libs" \ && func_fatal_configuration "not configured to build any kind of library" # Darwin sucks eval std_shrext=\"$shrext_cmds\" # Only execute mode is allowed to have -dlopen flags. if test -n "$opt_dlopen" && test execute != "$opt_mode"; then func_error "unrecognized option '-dlopen'" $ECHO "$help" 1>&2 exit $EXIT_FAILURE fi # Change the help message to a mode-specific one. generic_help=$help help="Try '$progname --help --mode=$opt_mode' for more information." } # Pass back the unparsed argument list func_quote_for_eval ${1+"$@"} libtool_validate_options_result=$func_quote_for_eval_result } func_add_hook func_validate_options libtool_validate_options # Process options as early as possible so that --help and --version # can return quickly. func_options ${1+"$@"} eval set dummy "$func_options_result"; shift ## ----------- ## ## Main. ## ## ----------- ## magic='%%%MAGIC variable%%%' magic_exe='%%%MAGIC EXE variable%%%' # Global variables. extracted_archives= extracted_serial=0 # If this variable is set in any of the actions, the command in it # will be execed at the end. This prevents here-documents from being # left over by shells. exec_cmd= # A function that is used when there is no print builtin or printf. func_fallback_echo () { eval 'cat <<_LTECHO_EOF $1 _LTECHO_EOF' } # func_generated_by_libtool # True iff stdin has been generated by Libtool. This function is only # a basic sanity check; it will hardly flush out determined imposters. func_generated_by_libtool_p () { $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 } # func_lalib_p file # True iff FILE is a libtool '.la' library or '.lo' object file. # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_lalib_p () { test -f "$1" && $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p } # func_lalib_unsafe_p file # True iff FILE is a libtool '.la' library or '.lo' object file. # This function implements the same check as func_lalib_p without # resorting to external programs. To this end, it redirects stdin and # closes it afterwards, without saving the original file descriptor. # As a safety measure, use it only where a negative result would be # fatal anyway. Works if 'file' does not exist. func_lalib_unsafe_p () { lalib_p=no if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then for lalib_p_l in 1 2 3 4 do read lalib_p_line case $lalib_p_line in \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; esac done exec 0<&5 5<&- fi test yes = "$lalib_p" } # func_ltwrapper_script_p file # True iff FILE is a libtool wrapper script # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_script_p () { test -f "$1" && $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p } # func_ltwrapper_executable_p file # True iff FILE is a libtool wrapper executable # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_executable_p () { func_ltwrapper_exec_suffix= case $1 in *.exe) ;; *) func_ltwrapper_exec_suffix=.exe ;; esac $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 } # func_ltwrapper_scriptname file # Assumes file is an ltwrapper_executable # uses $file to determine the appropriate filename for a # temporary ltwrapper_script. func_ltwrapper_scriptname () { func_dirname_and_basename "$1" "" "." func_stripname '' '.exe' "$func_basename_result" func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper } # func_ltwrapper_p file # True iff FILE is a libtool wrapper script or wrapper executable # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_p () { func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" } # func_execute_cmds commands fail_cmd # Execute tilde-delimited COMMANDS. # If FAIL_CMD is given, eval that upon failure. # FAIL_CMD may read-access the current command in variable CMD! func_execute_cmds () { $debug_cmd save_ifs=$IFS; IFS='~' for cmd in $1; do IFS=$sp$nl eval cmd=\"$cmd\" IFS=$save_ifs func_show_eval "$cmd" "${2-:}" done IFS=$save_ifs } # func_source file # Source FILE, adding directory component if necessary. # Note that it is not necessary on cygwin/mingw to append a dot to # FILE even if both FILE and FILE.exe exist: automatic-append-.exe # behavior happens only for exec(3), not for open(2)! Also, sourcing # 'FILE.' does not work on cygwin managed mounts. func_source () { $debug_cmd case $1 in */* | *\\*) . "$1" ;; *) . "./$1" ;; esac } # func_resolve_sysroot PATH # Replace a leading = in PATH with a sysroot. Store the result into # func_resolve_sysroot_result func_resolve_sysroot () { func_resolve_sysroot_result=$1 case $func_resolve_sysroot_result in =*) func_stripname '=' '' "$func_resolve_sysroot_result" func_resolve_sysroot_result=$lt_sysroot$func_stripname_result ;; esac } # func_replace_sysroot PATH # If PATH begins with the sysroot, replace it with = and # store the result into func_replace_sysroot_result. func_replace_sysroot () { case $lt_sysroot:$1 in ?*:"$lt_sysroot"*) func_stripname "$lt_sysroot" '' "$1" func_replace_sysroot_result='='$func_stripname_result ;; *) # Including no sysroot. func_replace_sysroot_result=$1 ;; esac } # func_infer_tag arg # Infer tagged configuration to use if any are available and # if one wasn't chosen via the "--tag" command line option. # Only attempt this if the compiler in the base compile # command doesn't match the default compiler. # arg is usually of the form 'gcc ...' func_infer_tag () { $debug_cmd if test -n "$available_tags" && test -z "$tagname"; then CC_quoted= for arg in $CC; do func_append_quoted CC_quoted "$arg" done CC_expanded=`func_echo_all $CC` CC_quoted_expanded=`func_echo_all $CC_quoted` case $@ in # Blanks in the command may have been stripped by the calling shell, # but not from the CC environment variable when configure was run. " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; # Blanks at the start of $base_compile will cause this to fail # if we don't check for them as well. *) for z in $available_tags; do if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then # Evaluate the configuration. eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" CC_quoted= for arg in $CC; do # Double-quote args containing other shell metacharacters. func_append_quoted CC_quoted "$arg" done CC_expanded=`func_echo_all $CC` CC_quoted_expanded=`func_echo_all $CC_quoted` case "$@ " in " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) # The compiler in the base compile command matches # the one in the tagged configuration. # Assume this is the tagged configuration we want. tagname=$z break ;; esac fi done # If $tagname still isn't set, then no tagged configuration # was found and let the user know that the "--tag" command # line option must be used. if test -z "$tagname"; then func_echo "unable to infer tagged configuration" func_fatal_error "specify a tag with '--tag'" # else # func_verbose "using $tagname tagged configuration" fi ;; esac fi } # func_write_libtool_object output_name pic_name nonpic_name # Create a libtool object file (analogous to a ".la" file), # but don't create it if we're doing a dry run. func_write_libtool_object () { write_libobj=$1 if test yes = "$build_libtool_libs"; then write_lobj=\'$2\' else write_lobj=none fi if test yes = "$build_old_libs"; then write_oldobj=\'$3\' else write_oldobj=none fi $opt_dry_run || { cat >${write_libobj}T </dev/null` if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | $SED -e "$sed_naive_backslashify"` else func_convert_core_file_wine_to_w32_result= fi fi } # end: func_convert_core_file_wine_to_w32 # func_convert_core_path_wine_to_w32 ARG # Helper function used by path conversion functions when $build is *nix, and # $host is mingw, cygwin, or some other w32 environment. Relies on a correctly # configured wine environment available, with the winepath program in $build's # $PATH. Assumes ARG has no leading or trailing path separator characters. # # ARG is path to be converted from $build format to win32. # Result is available in $func_convert_core_path_wine_to_w32_result. # Unconvertible file (directory) names in ARG are skipped; if no directory names # are convertible, then the result may be empty. func_convert_core_path_wine_to_w32 () { $debug_cmd # unfortunately, winepath doesn't convert paths, only file names func_convert_core_path_wine_to_w32_result= if test -n "$1"; then oldIFS=$IFS IFS=: for func_convert_core_path_wine_to_w32_f in $1; do IFS=$oldIFS func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" if test -n "$func_convert_core_file_wine_to_w32_result"; then if test -z "$func_convert_core_path_wine_to_w32_result"; then func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result else func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" fi fi done IFS=$oldIFS fi } # end: func_convert_core_path_wine_to_w32 # func_cygpath ARGS... # Wrapper around calling the cygpath program via LT_CYGPATH. This is used when # when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) # $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or # (2), returns the Cygwin file name or path in func_cygpath_result (input # file name or path is assumed to be in w32 format, as previously converted # from $build's *nix or MSYS format). In case (3), returns the w32 file name # or path in func_cygpath_result (input file name or path is assumed to be in # Cygwin format). Returns an empty string on error. # # ARGS are passed to cygpath, with the last one being the file name or path to # be converted. # # Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH # environment variable; do not put it in $PATH. func_cygpath () { $debug_cmd if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` if test "$?" -ne 0; then # on failure, ensure result is empty func_cygpath_result= fi else func_cygpath_result= func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" fi } #end: func_cygpath # func_convert_core_msys_to_w32 ARG # Convert file name or path ARG from MSYS format to w32 format. Return # result in func_convert_core_msys_to_w32_result. func_convert_core_msys_to_w32 () { $debug_cmd # awkward: cmd appends spaces to result func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` } #end: func_convert_core_msys_to_w32 # func_convert_file_check ARG1 ARG2 # Verify that ARG1 (a file name in $build format) was converted to $host # format in ARG2. Otherwise, emit an error message, but continue (resetting # func_to_host_file_result to ARG1). func_convert_file_check () { $debug_cmd if test -z "$2" && test -n "$1"; then func_error "Could not determine host file name corresponding to" func_error " '$1'" func_error "Continuing, but uninstalled executables may not work." # Fallback: func_to_host_file_result=$1 fi } # end func_convert_file_check # func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH # Verify that FROM_PATH (a path in $build format) was converted to $host # format in TO_PATH. Otherwise, emit an error message, but continue, resetting # func_to_host_file_result to a simplistic fallback value (see below). func_convert_path_check () { $debug_cmd if test -z "$4" && test -n "$3"; then func_error "Could not determine the host path corresponding to" func_error " '$3'" func_error "Continuing, but uninstalled executables may not work." # Fallback. This is a deliberately simplistic "conversion" and # should not be "improved". See libtool.info. if test "x$1" != "x$2"; then lt_replace_pathsep_chars="s|$1|$2|g" func_to_host_path_result=`echo "$3" | $SED -e "$lt_replace_pathsep_chars"` else func_to_host_path_result=$3 fi fi } # end func_convert_path_check # func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG # Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT # and appending REPL if ORIG matches BACKPAT. func_convert_path_front_back_pathsep () { $debug_cmd case $4 in $1 ) func_to_host_path_result=$3$func_to_host_path_result ;; esac case $4 in $2 ) func_append func_to_host_path_result "$3" ;; esac } # end func_convert_path_front_back_pathsep ################################################## # $build to $host FILE NAME CONVERSION FUNCTIONS # ################################################## # invoked via '$to_host_file_cmd ARG' # # In each case, ARG is the path to be converted from $build to $host format. # Result will be available in $func_to_host_file_result. # func_to_host_file ARG # Converts the file name ARG from $build format to $host format. Return result # in func_to_host_file_result. func_to_host_file () { $debug_cmd $to_host_file_cmd "$1" } # end func_to_host_file # func_to_tool_file ARG LAZY # converts the file name ARG from $build format to toolchain format. Return # result in func_to_tool_file_result. If the conversion in use is listed # in (the comma separated) LAZY, no conversion takes place. func_to_tool_file () { $debug_cmd case ,$2, in *,"$to_tool_file_cmd",*) func_to_tool_file_result=$1 ;; *) $to_tool_file_cmd "$1" func_to_tool_file_result=$func_to_host_file_result ;; esac } # end func_to_tool_file # func_convert_file_noop ARG # Copy ARG to func_to_host_file_result. func_convert_file_noop () { func_to_host_file_result=$1 } # end func_convert_file_noop # func_convert_file_msys_to_w32 ARG # Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic # conversion to w32 is not available inside the cwrapper. Returns result in # func_to_host_file_result. func_convert_file_msys_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_msys_to_w32 "$1" func_to_host_file_result=$func_convert_core_msys_to_w32_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_msys_to_w32 # func_convert_file_cygwin_to_w32 ARG # Convert file name ARG from Cygwin to w32 format. Returns result in # func_to_host_file_result. func_convert_file_cygwin_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then # because $build is cygwin, we call "the" cygpath in $PATH; no need to use # LT_CYGPATH in this case. func_to_host_file_result=`cygpath -m "$1"` fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_cygwin_to_w32 # func_convert_file_nix_to_w32 ARG # Convert file name ARG from *nix to w32 format. Requires a wine environment # and a working winepath. Returns result in func_to_host_file_result. func_convert_file_nix_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_file_wine_to_w32 "$1" func_to_host_file_result=$func_convert_core_file_wine_to_w32_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_nix_to_w32 # func_convert_file_msys_to_cygwin ARG # Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. # Returns result in func_to_host_file_result. func_convert_file_msys_to_cygwin () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_msys_to_w32 "$1" func_cygpath -u "$func_convert_core_msys_to_w32_result" func_to_host_file_result=$func_cygpath_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_msys_to_cygwin # func_convert_file_nix_to_cygwin ARG # Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed # in a wine environment, working winepath, and LT_CYGPATH set. Returns result # in func_to_host_file_result. func_convert_file_nix_to_cygwin () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. func_convert_core_file_wine_to_w32 "$1" func_cygpath -u "$func_convert_core_file_wine_to_w32_result" func_to_host_file_result=$func_cygpath_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_nix_to_cygwin ############################################# # $build to $host PATH CONVERSION FUNCTIONS # ############################################# # invoked via '$to_host_path_cmd ARG' # # In each case, ARG is the path to be converted from $build to $host format. # The result will be available in $func_to_host_path_result. # # Path separators are also converted from $build format to $host format. If # ARG begins or ends with a path separator character, it is preserved (but # converted to $host format) on output. # # All path conversion functions are named using the following convention: # file name conversion function : func_convert_file_X_to_Y () # path conversion function : func_convert_path_X_to_Y () # where, for any given $build/$host combination the 'X_to_Y' value is the # same. If conversion functions are added for new $build/$host combinations, # the two new functions must follow this pattern, or func_init_to_host_path_cmd # will break. # func_init_to_host_path_cmd # Ensures that function "pointer" variable $to_host_path_cmd is set to the # appropriate value, based on the value of $to_host_file_cmd. to_host_path_cmd= func_init_to_host_path_cmd () { $debug_cmd if test -z "$to_host_path_cmd"; then func_stripname 'func_convert_file_' '' "$to_host_file_cmd" to_host_path_cmd=func_convert_path_$func_stripname_result fi } # func_to_host_path ARG # Converts the path ARG from $build format to $host format. Return result # in func_to_host_path_result. func_to_host_path () { $debug_cmd func_init_to_host_path_cmd $to_host_path_cmd "$1" } # end func_to_host_path # func_convert_path_noop ARG # Copy ARG to func_to_host_path_result. func_convert_path_noop () { func_to_host_path_result=$1 } # end func_convert_path_noop # func_convert_path_msys_to_w32 ARG # Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic # conversion to w32 is not available inside the cwrapper. Returns result in # func_to_host_path_result. func_convert_path_msys_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # Remove leading and trailing path separator characters from ARG. MSYS # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; # and winepath ignores them completely. func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" func_to_host_path_result=$func_convert_core_msys_to_w32_result func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_msys_to_w32 # func_convert_path_cygwin_to_w32 ARG # Convert path ARG from Cygwin to w32 format. Returns result in # func_to_host_file_result. func_convert_path_cygwin_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_cygwin_to_w32 # func_convert_path_nix_to_w32 ARG # Convert path ARG from *nix to w32 format. Requires a wine environment and # a working winepath. Returns result in func_to_host_file_result. func_convert_path_nix_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" func_to_host_path_result=$func_convert_core_path_wine_to_w32_result func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_nix_to_w32 # func_convert_path_msys_to_cygwin ARG # Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. # Returns result in func_to_host_file_result. func_convert_path_msys_to_cygwin () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" func_cygpath -u -p "$func_convert_core_msys_to_w32_result" func_to_host_path_result=$func_cygpath_result func_convert_path_check : : \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" : "$1" fi } # end func_convert_path_msys_to_cygwin # func_convert_path_nix_to_cygwin ARG # Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a # a wine environment, working winepath, and LT_CYGPATH set. Returns result in # func_to_host_file_result. func_convert_path_nix_to_cygwin () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # Remove leading and trailing path separator characters from # ARG. msys behavior is inconsistent here, cygpath turns them # into '.;' and ';.', and winepath ignores them completely. func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" func_to_host_path_result=$func_cygpath_result func_convert_path_check : : \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" : "$1" fi } # end func_convert_path_nix_to_cygwin # func_dll_def_p FILE # True iff FILE is a Windows DLL '.def' file. # Keep in sync with _LT_DLL_DEF_P in libtool.m4 func_dll_def_p () { $debug_cmd func_dll_def_p_tmp=`$SED -n \ -e 's/^[ ]*//' \ -e '/^\(;.*\)*$/d' \ -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ -e q \ "$1"` test DEF = "$func_dll_def_p_tmp" } # func_mode_compile arg... func_mode_compile () { $debug_cmd # Get the compilation command and the source file. base_compile= srcfile=$nonopt # always keep a non-empty value in "srcfile" suppress_opt=yes suppress_output= arg_mode=normal libobj= later= pie_flag= for arg do case $arg_mode in arg ) # do not "continue". Instead, add this to base_compile lastarg=$arg arg_mode=normal ;; target ) libobj=$arg arg_mode=normal continue ;; normal ) # Accept any command-line options. case $arg in -o) test -n "$libobj" && \ func_fatal_error "you cannot specify '-o' more than once" arg_mode=target continue ;; -pie | -fpie | -fPIE) func_append pie_flag " $arg" continue ;; -shared | -static | -prefer-pic | -prefer-non-pic) func_append later " $arg" continue ;; -no-suppress) suppress_opt=no continue ;; -Xcompiler) arg_mode=arg # the next one goes into the "base_compile" arg list continue # The current "srcfile" will either be retained or ;; # replaced later. I would guess that would be a bug. -Wc,*) func_stripname '-Wc,' '' "$arg" args=$func_stripname_result lastarg= save_ifs=$IFS; IFS=, for arg in $args; do IFS=$save_ifs func_append_quoted lastarg "$arg" done IFS=$save_ifs func_stripname ' ' '' "$lastarg" lastarg=$func_stripname_result # Add the arguments to base_compile. func_append base_compile " $lastarg" continue ;; *) # Accept the current argument as the source file. # The previous "srcfile" becomes the current argument. # lastarg=$srcfile srcfile=$arg ;; esac # case $arg ;; esac # case $arg_mode # Aesthetically quote the previous argument. func_append_quoted base_compile "$lastarg" done # for arg case $arg_mode in arg) func_fatal_error "you must specify an argument for -Xcompile" ;; target) func_fatal_error "you must specify a target with '-o'" ;; *) # Get the name of the library object. test -z "$libobj" && { func_basename "$srcfile" libobj=$func_basename_result } ;; esac # Recognize several different file suffixes. # If the user specifies -o file.o, it is replaced with file.lo case $libobj in *.[cCFSifmso] | \ *.ada | *.adb | *.ads | *.asm | \ *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) func_xform "$libobj" libobj=$func_xform_result ;; esac case $libobj in *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; *) func_fatal_error "cannot determine name of library object from '$libobj'" ;; esac func_infer_tag $base_compile for arg in $later; do case $arg in -shared) test yes = "$build_libtool_libs" \ || func_fatal_configuration "cannot build a shared library" build_old_libs=no continue ;; -static) build_libtool_libs=no build_old_libs=yes continue ;; -prefer-pic) pic_mode=yes continue ;; -prefer-non-pic) pic_mode=no continue ;; esac done func_quote_for_eval "$libobj" test "X$libobj" != "X$func_quote_for_eval_result" \ && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ && func_warning "libobj name '$libobj' may not contain shell special characters." func_dirname_and_basename "$obj" "/" "" objname=$func_basename_result xdir=$func_dirname_result lobj=$xdir$objdir/$objname test -z "$base_compile" && \ func_fatal_help "you must specify a compilation command" # Delete any leftover library objects. if test yes = "$build_old_libs"; then removelist="$obj $lobj $libobj ${libobj}T" else removelist="$lobj $libobj ${libobj}T" fi # On Cygwin there's no "real" PIC flag so we must build both object types case $host_os in cygwin* | mingw* | pw32* | os2* | cegcc*) pic_mode=default ;; esac if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then # non-PIC code in shared libraries is not supported pic_mode=default fi # Calculate the filename of the output object if compiler does # not support -o with -c if test no = "$compiler_c_o"; then output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext lockfile=$output_obj.lock else output_obj= need_locks=no lockfile= fi # Lock this critical section if it is needed # We use this script file to make the link, it avoids creating a new file if test yes = "$need_locks"; then until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do func_echo "Waiting for $lockfile to be removed" sleep 2 done elif test warn = "$need_locks"; then if test -f "$lockfile"; then $ECHO "\ *** ERROR, $lockfile exists and contains: `cat $lockfile 2>/dev/null` This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi func_append removelist " $output_obj" $ECHO "$srcfile" > "$lockfile" fi $opt_dry_run || $RM $removelist func_append removelist " $lockfile" trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 srcfile=$func_to_tool_file_result func_quote_for_eval "$srcfile" qsrcfile=$func_quote_for_eval_result # Only build a PIC object if we are building libtool libraries. if test yes = "$build_libtool_libs"; then # Without this assignment, base_compile gets emptied. fbsd_hideous_sh_bug=$base_compile if test no != "$pic_mode"; then command="$base_compile $qsrcfile $pic_flag" else # Don't build PIC code command="$base_compile $qsrcfile" fi func_mkdir_p "$xdir$objdir" if test -z "$output_obj"; then # Place PIC objects in $objdir func_append command " -o $lobj" fi func_show_eval_locale "$command" \ 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' if test warn = "$need_locks" && test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then $ECHO "\ *** ERROR, $lockfile contains: `cat $lockfile 2>/dev/null` but it should contain: $srcfile This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi # Just move the object if needed, then go on to compile the next one if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then func_show_eval '$MV "$output_obj" "$lobj"' \ 'error=$?; $opt_dry_run || $RM $removelist; exit $error' fi # Allow error messages only from the first compilation. if test yes = "$suppress_opt"; then suppress_output=' >/dev/null 2>&1' fi fi # Only build a position-dependent object if we build old libraries. if test yes = "$build_old_libs"; then if test yes != "$pic_mode"; then # Don't build PIC code command="$base_compile $qsrcfile$pie_flag" else command="$base_compile $qsrcfile $pic_flag" fi if test yes = "$compiler_c_o"; then func_append command " -o $obj" fi # Suppress compiler output if we already did a PIC compilation. func_append command "$suppress_output" func_show_eval_locale "$command" \ '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' if test warn = "$need_locks" && test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then $ECHO "\ *** ERROR, $lockfile contains: `cat $lockfile 2>/dev/null` but it should contain: $srcfile This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi # Just move the object if needed if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then func_show_eval '$MV "$output_obj" "$obj"' \ 'error=$?; $opt_dry_run || $RM $removelist; exit $error' fi fi $opt_dry_run || { func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" # Unlock the critical section if it was locked if test no != "$need_locks"; then removelist=$lockfile $RM "$lockfile" fi } exit $EXIT_SUCCESS } $opt_help || { test compile = "$opt_mode" && func_mode_compile ${1+"$@"} } func_mode_help () { # We need to display help for each of the modes. case $opt_mode in "") # Generic help is extracted from the usage comments # at the start of this file. func_help ;; clean) $ECHO \ "Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... Remove files from the build directory. RM is the name of the program to use to delete files associated with each FILE (typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed to RM. If FILE is a libtool library, object or program, all the files associated with it are deleted. Otherwise, only FILE itself is deleted using RM." ;; compile) $ECHO \ "Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE Compile a source file into a libtool library object. This mode accepts the following additional options: -o OUTPUT-FILE set the output file name to OUTPUT-FILE -no-suppress do not suppress compiler output for multiple passes -prefer-pic try to build PIC objects only -prefer-non-pic try to build non-PIC objects only -shared do not build a '.o' file suitable for static linking -static only build a '.o' file suitable for static linking -Wc,FLAG pass FLAG directly to the compiler COMPILE-COMMAND is a command to be used in creating a 'standard' object file from the given SOURCEFILE. The output file name is determined by removing the directory component from SOURCEFILE, then substituting the C source code suffix '.c' with the library object suffix, '.lo'." ;; execute) $ECHO \ "Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... Automatically set library path, then run a program. This mode accepts the following additional options: -dlopen FILE add the directory containing FILE to the library path This mode sets the library path environment variable according to '-dlopen' flags. If any of the ARGS are libtool executable wrappers, then they are translated into their corresponding uninstalled binary, and any of their required library directories are added to the library path. Then, COMMAND is executed, with ARGS as arguments." ;; finish) $ECHO \ "Usage: $progname [OPTION]... --mode=finish [LIBDIR]... Complete the installation of libtool libraries. Each LIBDIR is a directory that contains libtool libraries. The commands that this mode executes may require superuser privileges. Use the '--dry-run' option if you just want to see what would be executed." ;; install) $ECHO \ "Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND... Install executables or libraries. INSTALL-COMMAND is the installation command. The first component should be either the 'install' or 'cp' program. The following components of INSTALL-COMMAND are treated specially: -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation The rest of the components are interpreted as arguments to that command (only BSD-compatible install options are recognized)." ;; link) $ECHO \ "Usage: $progname [OPTION]... --mode=link LINK-COMMAND... Link object files or libraries together to form another library, or to create an executable program. LINK-COMMAND is a command using the C compiler that you would use to create a program from several object files. The following components of LINK-COMMAND are treated specially: -all-static do not do any dynamic linking at all -avoid-version do not add a version suffix if possible -bindir BINDIR specify path to binaries directory (for systems where libraries must be found in the PATH setting at runtime) -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3) -export-symbols SYMFILE try to export only the symbols listed in SYMFILE -export-symbols-regex REGEX try to export only the symbols matching REGEX -LLIBDIR search LIBDIR for required installed libraries -lNAME OUTPUT-FILE requires the installed library libNAME -module build a library that can dlopened -no-fast-install disable the fast-install mode -no-install link a not-installable executable -no-undefined declare that a library does not refer to external symbols -o OUTPUT-FILE create OUTPUT-FILE from the specified objects -objectlist FILE use a list of object files found in FILE to specify objects -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes) -precious-files-regex REGEX don't remove output files matching REGEX -release RELEASE specify package release information -rpath LIBDIR the created library will eventually be installed in LIBDIR -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries -shared only do dynamic linking of libtool libraries -shrext SUFFIX override the standard shared library file extension -static do not do any dynamic linking of uninstalled libtool libraries -static-libtool-libs do not do any dynamic linking of libtool libraries -version-info CURRENT[:REVISION[:AGE]] specify library version info [each variable defaults to 0] -weak LIBNAME declare that the target provides the LIBNAME interface -Wc,FLAG -Xcompiler FLAG pass linker-specific FLAG directly to the compiler -Wl,FLAG -Xlinker FLAG pass linker-specific FLAG directly to the linker -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC) All other options (arguments beginning with '-') are ignored. Every other argument is treated as a filename. Files ending in '.la' are treated as uninstalled libtool libraries, other files are standard or library object files. If the OUTPUT-FILE ends in '.la', then a libtool library is created, only library objects ('.lo' files) may be specified, and '-rpath' is required, except when creating a convenience library. If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created using 'ar' and 'ranlib', or on Windows using 'lib'. If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file is created, otherwise an executable program is created." ;; uninstall) $ECHO \ "Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... Remove libraries from an installation directory. RM is the name of the program to use to delete files associated with each FILE (typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed to RM. If FILE is a libtool library, all the files associated with it are deleted. Otherwise, only FILE itself is deleted using RM." ;; *) func_fatal_help "invalid operation mode '$opt_mode'" ;; esac echo $ECHO "Try '$progname --help' for more information about other modes." } # Now that we've collected a possible --mode arg, show help if necessary if $opt_help; then if test : = "$opt_help"; then func_mode_help else { func_help noexit for opt_mode in compile link execute install finish uninstall clean; do func_mode_help done } | $SED -n '1p; 2,$s/^Usage:/ or: /p' { func_help noexit for opt_mode in compile link execute install finish uninstall clean; do echo func_mode_help done } | $SED '1d /^When reporting/,/^Report/{ H d } $x /information about other modes/d /more detailed .*MODE/d s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/' fi exit $? fi # func_mode_execute arg... func_mode_execute () { $debug_cmd # The first argument is the command name. cmd=$nonopt test -z "$cmd" && \ func_fatal_help "you must specify a COMMAND" # Handle -dlopen flags immediately. for file in $opt_dlopen; do test -f "$file" \ || func_fatal_help "'$file' is not a file" dir= case $file in *.la) func_resolve_sysroot "$file" file=$func_resolve_sysroot_result # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$file" \ || func_fatal_help "'$lib' is not a valid libtool archive" # Read the libtool library. dlname= library_names= func_source "$file" # Skip this library if it cannot be dlopened. if test -z "$dlname"; then # Warn if it was a shared library. test -n "$library_names" && \ func_warning "'$file' was not linked with '-export-dynamic'" continue fi func_dirname "$file" "" "." dir=$func_dirname_result if test -f "$dir/$objdir/$dlname"; then func_append dir "/$objdir" else if test ! -f "$dir/$dlname"; then func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'" fi fi ;; *.lo) # Just add the directory containing the .lo file. func_dirname "$file" "" "." dir=$func_dirname_result ;; *) func_warning "'-dlopen' is ignored for non-libtool libraries and objects" continue ;; esac # Get the absolute pathname. absdir=`cd "$dir" && pwd` test -n "$absdir" && dir=$absdir # Now add the directory to shlibpath_var. if eval "test -z \"\$$shlibpath_var\""; then eval "$shlibpath_var=\"\$dir\"" else eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\"" fi done # This variable tells wrapper scripts just to set shlibpath_var # rather than running their programs. libtool_execute_magic=$magic # Check if any of the arguments is a wrapper script. args= for file do case $file in -* | *.la | *.lo ) ;; *) # Do a test to see if this is really a libtool program. if func_ltwrapper_script_p "$file"; then func_source "$file" # Transform arg to wrapped name. file=$progdir/$program elif func_ltwrapper_executable_p "$file"; then func_ltwrapper_scriptname "$file" func_source "$func_ltwrapper_scriptname_result" # Transform arg to wrapped name. file=$progdir/$program fi ;; esac # Quote arguments (to preserve shell metacharacters). func_append_quoted args "$file" done if $opt_dry_run; then # Display what would be done. if test -n "$shlibpath_var"; then eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\"" echo "export $shlibpath_var" fi $ECHO "$cmd$args" exit $EXIT_SUCCESS else if test -n "$shlibpath_var"; then # Export the shlibpath_var. eval "export $shlibpath_var" fi # Restore saved environment variables for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES do eval "if test \"\${save_$lt_var+set}\" = set; then $lt_var=\$save_$lt_var; export $lt_var else $lt_unset $lt_var fi" done # Now prepare to actually exec the command. exec_cmd=\$cmd$args fi } test execute = "$opt_mode" && func_mode_execute ${1+"$@"} # func_mode_finish arg... func_mode_finish () { $debug_cmd libs= libdirs= admincmds= for opt in "$nonopt" ${1+"$@"} do if test -d "$opt"; then func_append libdirs " $opt" elif test -f "$opt"; then if func_lalib_unsafe_p "$opt"; then func_append libs " $opt" else func_warning "'$opt' is not a valid libtool archive" fi else func_fatal_error "invalid argument '$opt'" fi done if test -n "$libs"; then if test -n "$lt_sysroot"; then sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" else sysroot_cmd= fi # Remove sysroot references if $opt_dry_run; then for lib in $libs; do echo "removing references to $lt_sysroot and '=' prefixes from $lib" done else tmpdir=`func_mktempdir` for lib in $libs; do $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ > $tmpdir/tmp-la mv -f $tmpdir/tmp-la $lib done ${RM}r "$tmpdir" fi fi if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then for libdir in $libdirs; do if test -n "$finish_cmds"; then # Do each command in the finish commands. func_execute_cmds "$finish_cmds" 'admincmds="$admincmds '"$cmd"'"' fi if test -n "$finish_eval"; then # Do the single finish_eval. eval cmds=\"$finish_eval\" $opt_dry_run || eval "$cmds" || func_append admincmds " $cmds" fi done fi # Exit here if they wanted silent mode. $opt_quiet && exit $EXIT_SUCCESS if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then echo "----------------------------------------------------------------------" echo "Libraries have been installed in:" for libdir in $libdirs; do $ECHO " $libdir" done echo echo "If you ever happen to want to link against installed libraries" echo "in a given directory, LIBDIR, you must either use libtool, and" echo "specify the full pathname of the library, or use the '-LLIBDIR'" echo "flag during linking and do at least one of the following:" if test -n "$shlibpath_var"; then echo " - add LIBDIR to the '$shlibpath_var' environment variable" echo " during execution" fi if test -n "$runpath_var"; then echo " - add LIBDIR to the '$runpath_var' environment variable" echo " during linking" fi if test -n "$hardcode_libdir_flag_spec"; then libdir=LIBDIR eval flag=\"$hardcode_libdir_flag_spec\" $ECHO " - use the '$flag' linker flag" fi if test -n "$admincmds"; then $ECHO " - have your system administrator run these commands:$admincmds" fi if test -f /etc/ld.so.conf; then echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" fi echo echo "See any operating system documentation about shared libraries for" case $host in solaris2.[6789]|solaris2.1[0-9]) echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" echo "pages." ;; *) echo "more information, such as the ld(1) and ld.so(8) manual pages." ;; esac echo "----------------------------------------------------------------------" fi exit $EXIT_SUCCESS } test finish = "$opt_mode" && func_mode_finish ${1+"$@"} # func_mode_install arg... func_mode_install () { $debug_cmd # There may be an optional sh(1) argument at the beginning of # install_prog (especially on Windows NT). if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || # Allow the use of GNU shtool's install command. case $nonopt in *shtool*) :;; *) false;; esac then # Aesthetically quote it. func_quote_for_eval "$nonopt" install_prog="$func_quote_for_eval_result " arg=$1 shift else install_prog= arg=$nonopt fi # The real first argument should be the name of the installation program. # Aesthetically quote it. func_quote_for_eval "$arg" func_append install_prog "$func_quote_for_eval_result" install_shared_prog=$install_prog case " $install_prog " in *[\\\ /]cp\ *) install_cp=: ;; *) install_cp=false ;; esac # We need to accept at least all the BSD install flags. dest= files= opts= prev= install_type= isdir=false stripme= no_mode=: for arg do arg2= if test -n "$dest"; then func_append files " $dest" dest=$arg continue fi case $arg in -d) isdir=: ;; -f) if $install_cp; then :; else prev=$arg fi ;; -g | -m | -o) prev=$arg ;; -s) stripme=" -s" continue ;; -*) ;; *) # If the previous option needed an argument, then skip it. if test -n "$prev"; then if test X-m = "X$prev" && test -n "$install_override_mode"; then arg2=$install_override_mode no_mode=false fi prev= else dest=$arg continue fi ;; esac # Aesthetically quote the argument. func_quote_for_eval "$arg" func_append install_prog " $func_quote_for_eval_result" if test -n "$arg2"; then func_quote_for_eval "$arg2" fi func_append install_shared_prog " $func_quote_for_eval_result" done test -z "$install_prog" && \ func_fatal_help "you must specify an install program" test -n "$prev" && \ func_fatal_help "the '$prev' option requires an argument" if test -n "$install_override_mode" && $no_mode; then if $install_cp; then :; else func_quote_for_eval "$install_override_mode" func_append install_shared_prog " -m $func_quote_for_eval_result" fi fi if test -z "$files"; then if test -z "$dest"; then func_fatal_help "no file or destination specified" else func_fatal_help "you must specify a destination" fi fi # Strip any trailing slash from the destination. func_stripname '' '/' "$dest" dest=$func_stripname_result # Check to see that the destination is a directory. test -d "$dest" && isdir=: if $isdir; then destdir=$dest destname= else func_dirname_and_basename "$dest" "" "." destdir=$func_dirname_result destname=$func_basename_result # Not a directory, so check to see that there is only one file specified. set dummy $files; shift test "$#" -gt 1 && \ func_fatal_help "'$dest' is not a directory" fi case $destdir in [\\/]* | [A-Za-z]:[\\/]*) ;; *) for file in $files; do case $file in *.lo) ;; *) func_fatal_help "'$destdir' must be an absolute directory name" ;; esac done ;; esac # This variable tells wrapper scripts just to set variables rather # than running their programs. libtool_install_magic=$magic staticlibs= future_libdirs= current_libdirs= for file in $files; do # Do each installation. case $file in *.$libext) # Do the static libraries later. func_append staticlibs " $file" ;; *.la) func_resolve_sysroot "$file" file=$func_resolve_sysroot_result # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$file" \ || func_fatal_help "'$file' is not a valid libtool archive" library_names= old_library= relink_command= func_source "$file" # Add the libdir to current_libdirs if it is the destination. if test "X$destdir" = "X$libdir"; then case "$current_libdirs " in *" $libdir "*) ;; *) func_append current_libdirs " $libdir" ;; esac else # Note the libdir as a future libdir. case "$future_libdirs " in *" $libdir "*) ;; *) func_append future_libdirs " $libdir" ;; esac fi func_dirname "$file" "/" "" dir=$func_dirname_result func_append dir "$objdir" if test -n "$relink_command"; then # Determine the prefix the user has applied to our future dir. inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` # Don't allow the user to place us outside of our expected # location b/c this prevents finding dependent libraries that # are installed to the same prefix. # At present, this check doesn't affect windows .dll's that # are installed into $libdir/../bin (currently, that works fine) # but it's something to keep an eye on. test "$inst_prefix_dir" = "$destdir" && \ func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" if test -n "$inst_prefix_dir"; then # Stick the inst_prefix_dir data into the link command. relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` else relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` fi func_warning "relinking '$file'" func_show_eval "$relink_command" \ 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' fi # See the names of the shared library. set dummy $library_names; shift if test -n "$1"; then realname=$1 shift srcname=$realname test -n "$relink_command" && srcname=${realname}T # Install the shared library and build the symlinks. func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ 'exit $?' tstripme=$stripme case $host_os in cygwin* | mingw* | pw32* | cegcc*) case $realname in *.dll.a) tstripme= ;; esac ;; os2*) case $realname in *_dll.a) tstripme= ;; esac ;; esac if test -n "$tstripme" && test -n "$striplib"; then func_show_eval "$striplib $destdir/$realname" 'exit $?' fi if test "$#" -gt 0; then # Delete the old symlinks, and create new ones. # Try 'ln -sf' first, because the 'ln' binary might depend on # the symlink we replace! Solaris /bin/ln does not understand -f, # so we also need to try rm && ln -s. for linkname do test "$linkname" != "$realname" \ && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" done fi # Do each command in the postinstall commands. lib=$destdir/$realname func_execute_cmds "$postinstall_cmds" 'exit $?' fi # Install the pseudo-library for information purposes. func_basename "$file" name=$func_basename_result instname=$dir/${name}i func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' # Maybe install the static library, too. test -n "$old_library" && func_append staticlibs " $dir/$old_library" ;; *.lo) # Install (i.e. copy) a libtool object. # Figure out destination file name, if it wasn't already specified. if test -n "$destname"; then destfile=$destdir/$destname else func_basename "$file" destfile=$func_basename_result destfile=$destdir/$destfile fi # Deduce the name of the destination old-style object file. case $destfile in *.lo) func_lo2o "$destfile" staticdest=$func_lo2o_result ;; *.$objext) staticdest=$destfile destfile= ;; *) func_fatal_help "cannot copy a libtool object to '$destfile'" ;; esac # Install the libtool object if requested. test -n "$destfile" && \ func_show_eval "$install_prog $file $destfile" 'exit $?' # Install the old object if enabled. if test yes = "$build_old_libs"; then # Deduce the name of the old-style object file. func_lo2o "$file" staticobj=$func_lo2o_result func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' fi exit $EXIT_SUCCESS ;; *) # Figure out destination file name, if it wasn't already specified. if test -n "$destname"; then destfile=$destdir/$destname else func_basename "$file" destfile=$func_basename_result destfile=$destdir/$destfile fi # If the file is missing, and there is a .exe on the end, strip it # because it is most likely a libtool script we actually want to # install stripped_ext= case $file in *.exe) if test ! -f "$file"; then func_stripname '' '.exe' "$file" file=$func_stripname_result stripped_ext=.exe fi ;; esac # Do a test to see if this is really a libtool program. case $host in *cygwin* | *mingw*) if func_ltwrapper_executable_p "$file"; then func_ltwrapper_scriptname "$file" wrapper=$func_ltwrapper_scriptname_result else func_stripname '' '.exe' "$file" wrapper=$func_stripname_result fi ;; *) wrapper=$file ;; esac if func_ltwrapper_script_p "$wrapper"; then notinst_deplibs= relink_command= func_source "$wrapper" # Check the variables that should have been set. test -z "$generated_by_libtool_version" && \ func_fatal_error "invalid libtool wrapper script '$wrapper'" finalize=: for lib in $notinst_deplibs; do # Check to see that each library is installed. libdir= if test -f "$lib"; then func_source "$lib" fi libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` if test -n "$libdir" && test ! -f "$libfile"; then func_warning "'$lib' has not been installed in '$libdir'" finalize=false fi done relink_command= func_source "$wrapper" outputname= if test no = "$fast_install" && test -n "$relink_command"; then $opt_dry_run || { if $finalize; then tmpdir=`func_mktempdir` func_basename "$file$stripped_ext" file=$func_basename_result outputname=$tmpdir/$file # Replace the output file specification. relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` $opt_quiet || { func_quote_for_expand "$relink_command" eval "func_echo $func_quote_for_expand_result" } if eval "$relink_command"; then : else func_error "error: relink '$file' with the above command before installing it" $opt_dry_run || ${RM}r "$tmpdir" continue fi file=$outputname else func_warning "cannot relink '$file'" fi } else # Install the binary that we compiled earlier. file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` fi fi # remove .exe since cygwin /usr/bin/install will append another # one anyway case $install_prog,$host in */usr/bin/install*,*cygwin*) case $file:$destfile in *.exe:*.exe) # this is ok ;; *.exe:*) destfile=$destfile.exe ;; *:*.exe) func_stripname '' '.exe' "$destfile" destfile=$func_stripname_result ;; esac ;; esac func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' $opt_dry_run || if test -n "$outputname"; then ${RM}r "$tmpdir" fi ;; esac done for file in $staticlibs; do func_basename "$file" name=$func_basename_result # Set up the ranlib parameters. oldlib=$destdir/$name func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 tool_oldlib=$func_to_tool_file_result func_show_eval "$install_prog \$file \$oldlib" 'exit $?' if test -n "$stripme" && test -n "$old_striplib"; then func_show_eval "$old_striplib $tool_oldlib" 'exit $?' fi # Do each command in the postinstall commands. func_execute_cmds "$old_postinstall_cmds" 'exit $?' done test -n "$future_libdirs" && \ func_warning "remember to run '$progname --finish$future_libdirs'" if test -n "$current_libdirs"; then # Maybe just do a dry run. $opt_dry_run && current_libdirs=" -n$current_libdirs" exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' else exit $EXIT_SUCCESS fi } test install = "$opt_mode" && func_mode_install ${1+"$@"} # func_generate_dlsyms outputname originator pic_p # Extract symbols from dlprefiles and create ${outputname}S.o with # a dlpreopen symbol table. func_generate_dlsyms () { $debug_cmd my_outputname=$1 my_originator=$2 my_pic_p=${3-false} my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` my_dlsyms= if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then if test -n "$NM" && test -n "$global_symbol_pipe"; then my_dlsyms=${my_outputname}S.c else func_error "not configured to extract global symbols from dlpreopened files" fi fi if test -n "$my_dlsyms"; then case $my_dlsyms in "") ;; *.c) # Discover the nlist of each of the dlfiles. nlist=$output_objdir/$my_outputname.nm func_show_eval "$RM $nlist ${nlist}S ${nlist}T" # Parse the name list into a source file. func_verbose "creating $output_objdir/$my_dlsyms" $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ /* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ /* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ #ifdef __cplusplus extern \"C\" { #endif #if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) #pragma GCC diagnostic ignored \"-Wstrict-prototypes\" #endif /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) /* External symbol declarations for the compiler. */\ " if test yes = "$dlself"; then func_verbose "generating symbol list for '$output'" $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" # Add our own program objects to the symbol list. progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` for progfile in $progfiles; do func_to_tool_file "$progfile" func_convert_file_msys_to_w32 func_verbose "extracting global C symbols from '$func_to_tool_file_result'" $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" done if test -n "$exclude_expsyms"; then $opt_dry_run || { eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' } fi if test -n "$export_symbols_regex"; then $opt_dry_run || { eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' } fi # Prepare the list of exported symbols if test -z "$export_symbols"; then export_symbols=$output_objdir/$outputname.exp $opt_dry_run || { $RM $export_symbols eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' case $host in *cygwin* | *mingw* | *cegcc* ) eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' ;; esac } else $opt_dry_run || { eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' case $host in *cygwin* | *mingw* | *cegcc* ) eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' ;; esac } fi fi for dlprefile in $dlprefiles; do func_verbose "extracting global C symbols from '$dlprefile'" func_basename "$dlprefile" name=$func_basename_result case $host in *cygwin* | *mingw* | *cegcc* ) # if an import library, we need to obtain dlname if func_win32_import_lib_p "$dlprefile"; then func_tr_sh "$dlprefile" eval "curr_lafile=\$libfile_$func_tr_sh_result" dlprefile_dlbasename= if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then # Use subshell, to avoid clobbering current variable values dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` if test -n "$dlprefile_dlname"; then func_basename "$dlprefile_dlname" dlprefile_dlbasename=$func_basename_result else # no lafile. user explicitly requested -dlpreopen . $sharedlib_from_linklib_cmd "$dlprefile" dlprefile_dlbasename=$sharedlib_from_linklib_result fi fi $opt_dry_run || { if test -n "$dlprefile_dlbasename"; then eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' else func_warning "Could not compute DLL name from $name" eval '$ECHO ": $name " >> "$nlist"' fi func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" } else # not an import lib $opt_dry_run || { eval '$ECHO ": $name " >> "$nlist"' func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" } fi ;; *) $opt_dry_run || { eval '$ECHO ": $name " >> "$nlist"' func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" } ;; esac done $opt_dry_run || { # Make sure we have at least an empty file. test -f "$nlist" || : > "$nlist" if test -n "$exclude_expsyms"; then $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T $MV "$nlist"T "$nlist" fi # Try sorting and uniquifying the output. if $GREP -v "^: " < "$nlist" | if sort -k 3 /dev/null 2>&1; then sort -k 3 else sort +2 fi | uniq > "$nlist"S; then : else $GREP -v "^: " < "$nlist" > "$nlist"S fi if test -f "$nlist"S; then eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' else echo '/* NONE */' >> "$output_objdir/$my_dlsyms" fi func_show_eval '$RM "${nlist}I"' if test -n "$global_symbol_to_import"; then eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' fi echo >> "$output_objdir/$my_dlsyms" "\ /* The mapping between symbol names and symbols. */ typedef struct { const char *name; void *address; } lt_dlsymlist; extern LT_DLSYM_CONST lt_dlsymlist lt_${my_prefix}_LTX_preloaded_symbols[];\ " if test -s "$nlist"I; then echo >> "$output_objdir/$my_dlsyms" "\ static void lt_syminit(void) { LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; for (; symbol->name; ++symbol) {" $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" echo >> "$output_objdir/$my_dlsyms" "\ } }" fi echo >> "$output_objdir/$my_dlsyms" "\ LT_DLSYM_CONST lt_dlsymlist lt_${my_prefix}_LTX_preloaded_symbols[] = { {\"$my_originator\", (void *) 0}," if test -s "$nlist"I; then echo >> "$output_objdir/$my_dlsyms" "\ {\"@INIT@\", (void *) <_syminit}," fi case $need_lib_prefix in no) eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" ;; *) eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" ;; esac echo >> "$output_objdir/$my_dlsyms" "\ {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt_${my_prefix}_LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif\ " } # !$opt_dry_run pic_flag_for_symtable= case "$compile_command " in *" -static "*) ;; *) case $host in # compiling the symbol table file with pic_flag works around # a FreeBSD bug that causes programs to crash when -lm is # linked before any other PIC object. But we must not use # pic_flag when linking with -static. The problem exists in # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; *-*-hpux*) pic_flag_for_symtable=" $pic_flag" ;; *) $my_pic_p && pic_flag_for_symtable=" $pic_flag" ;; esac ;; esac symtab_cflags= for arg in $LTCFLAGS; do case $arg in -pie | -fpie | -fPIE) ;; *) func_append symtab_cflags " $arg" ;; esac done # Now compile the dynamic symbol file. func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' # Clean up the generated files. func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' # Transform the symbol file into the correct name. symfileobj=$output_objdir/${my_outputname}S.$objext case $host in *cygwin* | *mingw* | *cegcc* ) if test -f "$output_objdir/$my_outputname.def"; then compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` else compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` fi ;; *) compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` ;; esac ;; *) func_fatal_error "unknown suffix for '$my_dlsyms'" ;; esac else # We keep going just in case the user didn't refer to # lt_preloaded_symbols. The linker will fail if global_symbol_pipe # really was required. # Nullify the symbol file. compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` fi } # func_cygming_gnu_implib_p ARG # This predicate returns with zero status (TRUE) if # ARG is a GNU/binutils-style import library. Returns # with nonzero status (FALSE) otherwise. func_cygming_gnu_implib_p () { $debug_cmd func_to_tool_file "$1" func_convert_file_msys_to_w32 func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` test -n "$func_cygming_gnu_implib_tmp" } # func_cygming_ms_implib_p ARG # This predicate returns with zero status (TRUE) if # ARG is an MS-style import library. Returns # with nonzero status (FALSE) otherwise. func_cygming_ms_implib_p () { $debug_cmd func_to_tool_file "$1" func_convert_file_msys_to_w32 func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` test -n "$func_cygming_ms_implib_tmp" } # func_win32_libid arg # return the library type of file 'arg' # # Need a lot of goo to handle *both* DLLs and import libs # Has to be a shell function in order to 'eat' the argument # that is supplied when $file_magic_command is called. # Despite the name, also deal with 64 bit binaries. func_win32_libid () { $debug_cmd win32_libid_type=unknown win32_fileres=`file -L $1 2>/dev/null` case $win32_fileres in *ar\ archive\ import\ library*) # definitely import win32_libid_type="x86 archive import" ;; *ar\ archive*) # could be an import, or static # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then case $nm_interface in "MS dumpbin") if func_cygming_ms_implib_p "$1" || func_cygming_gnu_implib_p "$1" then win32_nmres=import else win32_nmres= fi ;; *) func_to_tool_file "$1" func_convert_file_msys_to_w32 win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | $SED -n -e ' 1,100{ / I /{ s|.*|import| p q } }'` ;; esac case $win32_nmres in import*) win32_libid_type="x86 archive import";; *) win32_libid_type="x86 archive static";; esac fi ;; *DLL*) win32_libid_type="x86 DLL" ;; *executable*) # but shell scripts are "executable" too... case $win32_fileres in *MS\ Windows\ PE\ Intel*) win32_libid_type="x86 DLL" ;; esac ;; esac $ECHO "$win32_libid_type" } # func_cygming_dll_for_implib ARG # # Platform-specific function to extract the # name of the DLL associated with the specified # import library ARG. # Invoked by eval'ing the libtool variable # $sharedlib_from_linklib_cmd # Result is available in the variable # $sharedlib_from_linklib_result func_cygming_dll_for_implib () { $debug_cmd sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` } # func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs # # The is the core of a fallback implementation of a # platform-specific function to extract the name of the # DLL associated with the specified import library LIBNAME. # # SECTION_NAME is either .idata$6 or .idata$7, depending # on the platform and compiler that created the implib. # # Echos the name of the DLL associated with the # specified import library. func_cygming_dll_for_implib_fallback_core () { $debug_cmd match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` $OBJDUMP -s --section "$1" "$2" 2>/dev/null | $SED '/^Contents of section '"$match_literal"':/{ # Place marker at beginning of archive member dllname section s/.*/====MARK====/ p d } # These lines can sometimes be longer than 43 characters, but # are always uninteresting /:[ ]*file format pe[i]\{,1\}-/d /^In archive [^:]*:/d # Ensure marker is printed /^====MARK====/p # Remove all lines with less than 43 characters /^.\{43\}/!d # From remaining lines, remove first 43 characters s/^.\{43\}//' | $SED -n ' # Join marker and all lines until next marker into a single line /^====MARK====/ b para H $ b para b :para x s/\n//g # Remove the marker s/^====MARK====// # Remove trailing dots and whitespace s/[\. \t]*$// # Print /./p' | # we now have a list, one entry per line, of the stringified # contents of the appropriate section of all members of the # archive that possess that section. Heuristic: eliminate # all those that have a first or second character that is # a '.' (that is, objdump's representation of an unprintable # character.) This should work for all archives with less than # 0x302f exports -- but will fail for DLLs whose name actually # begins with a literal '.' or a single character followed by # a '.'. # # Of those that remain, print the first one. $SED -e '/^\./d;/^.\./d;q' } # func_cygming_dll_for_implib_fallback ARG # Platform-specific function to extract the # name of the DLL associated with the specified # import library ARG. # # This fallback implementation is for use when $DLLTOOL # does not support the --identify-strict option. # Invoked by eval'ing the libtool variable # $sharedlib_from_linklib_cmd # Result is available in the variable # $sharedlib_from_linklib_result func_cygming_dll_for_implib_fallback () { $debug_cmd if func_cygming_gnu_implib_p "$1"; then # binutils import library sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` elif func_cygming_ms_implib_p "$1"; then # ms-generated import library sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` else # unknown sharedlib_from_linklib_result= fi } # func_extract_an_archive dir oldlib func_extract_an_archive () { $debug_cmd f_ex_an_ar_dir=$1; shift f_ex_an_ar_oldlib=$1 if test yes = "$lock_old_archive_extraction"; then lockfile=$f_ex_an_ar_oldlib.lock until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do func_echo "Waiting for $lockfile to be removed" sleep 2 done fi func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ 'stat=$?; rm -f "$lockfile"; exit $stat' if test yes = "$lock_old_archive_extraction"; then $opt_dry_run || rm -f "$lockfile" fi if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then : else func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" fi } # func_extract_archives gentop oldlib ... func_extract_archives () { $debug_cmd my_gentop=$1; shift my_oldlibs=${1+"$@"} my_oldobjs= my_xlib= my_xabs= my_xdir= for my_xlib in $my_oldlibs; do # Extract the objects. case $my_xlib in [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; *) my_xabs=`pwd`"/$my_xlib" ;; esac func_basename "$my_xlib" my_xlib=$func_basename_result my_xlib_u=$my_xlib while :; do case " $extracted_archives " in *" $my_xlib_u "*) func_arith $extracted_serial + 1 extracted_serial=$func_arith_result my_xlib_u=lt$extracted_serial-$my_xlib ;; *) break ;; esac done extracted_archives="$extracted_archives $my_xlib_u" my_xdir=$my_gentop/$my_xlib_u func_mkdir_p "$my_xdir" case $host in *-darwin*) func_verbose "Extracting $my_xabs" # Do not bother doing anything if just a dry run $opt_dry_run || { darwin_orig_dir=`pwd` cd $my_xdir || exit $? darwin_archive=$my_xabs darwin_curdir=`pwd` func_basename "$darwin_archive" darwin_base_archive=$func_basename_result darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` if test -n "$darwin_arches"; then darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` darwin_arch= func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" for darwin_arch in $darwin_arches; do func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" cd "unfat-$$/$darwin_base_archive-$darwin_arch" func_extract_an_archive "`pwd`" "$darwin_base_archive" cd "$darwin_curdir" $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" done # $darwin_arches ## Okay now we've a bunch of thin objects, gotta fatten them up :) darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` darwin_file= darwin_files= for darwin_file in $darwin_filelist; do darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` $LIPO -create -output "$darwin_file" $darwin_files done # $darwin_filelist $RM -rf unfat-$$ cd "$darwin_orig_dir" else cd $darwin_orig_dir func_extract_an_archive "$my_xdir" "$my_xabs" fi # $darwin_arches } # !$opt_dry_run ;; *) func_extract_an_archive "$my_xdir" "$my_xabs" ;; esac my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` done func_extract_archives_result=$my_oldobjs } # func_emit_wrapper [arg=no] # # Emit a libtool wrapper script on stdout. # Don't directly open a file because we may want to # incorporate the script contents within a cygwin/mingw # wrapper executable. Must ONLY be called from within # func_mode_link because it depends on a number of variables # set therein. # # ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR # variable will take. If 'yes', then the emitted script # will assume that the directory where it is stored is # the $objdir directory. This is a cygwin/mingw-specific # behavior. func_emit_wrapper () { func_emit_wrapper_arg1=${1-no} $ECHO "\ #! $SHELL # $output - temporary wrapper script for $objdir/$outputname # Generated by $PROGRAM (GNU $PACKAGE) $VERSION # # The $output program cannot be directly executed until all the libtool # libraries that it depends on are installed. # # This wrapper script should never be moved out of the build directory. # If it is, it will not operate correctly. # Sed substitution that helps us do robust quoting. It backslashifies # metacharacters that are still active within double-quoted strings. sed_quote_subst='$sed_quote_subst' # Be Bourne compatible if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which # is contrary to our usage. Disable this feature. alias -g '\${1+\"\$@\"}'='\"\$@\"' setopt NO_GLOB_SUBST else case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac fi BIN_SH=xpg4; export BIN_SH # for Tru64 DUALCASE=1; export DUALCASE # for MKS sh # The HP-UX ksh and POSIX shell print the target directory to stdout # if CDPATH is set. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH relink_command=\"$relink_command\" # This environment variable determines our operation mode. if test \"\$libtool_install_magic\" = \"$magic\"; then # install mode needs the following variables: generated_by_libtool_version='$macro_version' notinst_deplibs='$notinst_deplibs' else # When we are sourced in execute mode, \$file and \$ECHO are already set. if test \"\$libtool_execute_magic\" != \"$magic\"; then file=\"\$0\"" qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` $ECHO "\ # A function that is used when there is no print builtin or printf. func_fallback_echo () { eval 'cat <<_LTECHO_EOF \$1 _LTECHO_EOF' } ECHO=\"$qECHO\" fi # Very basic option parsing. These options are (a) specific to # the libtool wrapper, (b) are identical between the wrapper # /script/ and the wrapper /executable/ that is used only on # windows platforms, and (c) all begin with the string "--lt-" # (application programs are unlikely to have options that match # this pattern). # # There are only two supported options: --lt-debug and # --lt-dump-script. There is, deliberately, no --lt-help. # # The first argument to this parsing function should be the # script's $0 value, followed by "$@". lt_option_debug= func_parse_lt_options () { lt_script_arg0=\$0 shift for lt_opt do case \"\$lt_opt\" in --lt-debug) lt_option_debug=1 ;; --lt-dump-script) lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` cat \"\$lt_dump_D/\$lt_dump_F\" exit 0 ;; --lt-*) \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 exit 1 ;; esac done # Print the debug banner immediately: if test -n \"\$lt_option_debug\"; then echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2 fi } # Used when --lt-debug. Prints its arguments to stdout # (redirection is the responsibility of the caller) func_lt_dump_args () { lt_dump_args_N=1; for lt_arg do \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\" lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` done } # Core function for launching the target application func_exec_program_core () { " case $host in # Backslashes separate directories on plain windows *-*-mingw | *-*-os2* | *-cegcc*) $ECHO "\ if test -n \"\$lt_option_debug\"; then \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2 func_lt_dump_args \${1+\"\$@\"} 1>&2 fi exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} " ;; *) $ECHO "\ if test -n \"\$lt_option_debug\"; then \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2 func_lt_dump_args \${1+\"\$@\"} 1>&2 fi exec \"\$progdir/\$program\" \${1+\"\$@\"} " ;; esac $ECHO "\ \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 exit 1 } # A function to encapsulate launching the target application # Strips options in the --lt-* namespace from \$@ and # launches target application with the remaining arguments. func_exec_program () { case \" \$* \" in *\\ --lt-*) for lt_wr_arg do case \$lt_wr_arg in --lt-*) ;; *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; esac shift done ;; esac func_exec_program_core \${1+\"\$@\"} } # Parse options func_parse_lt_options \"\$0\" \${1+\"\$@\"} # Find the directory that this script lives in. thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` test \"x\$thisdir\" = \"x\$file\" && thisdir=. # Follow symbolic links until we get to the real thisdir. file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` while test -n \"\$file\"; do destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` # If there was a directory component, then change thisdir. if test \"x\$destdir\" != \"x\$file\"; then case \"\$destdir\" in [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; *) thisdir=\"\$thisdir/\$destdir\" ;; esac fi file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` done # Usually 'no', except on cygwin/mingw when embedded into # the cwrapper. WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then # special case for '.' if test \"\$thisdir\" = \".\"; then thisdir=\`pwd\` fi # remove .libs from thisdir case \"\$thisdir\" in *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; $objdir ) thisdir=. ;; esac fi # Try to get the absolute directory name. absdir=\`cd \"\$thisdir\" && pwd\` test -n \"\$absdir\" && thisdir=\"\$absdir\" " if test yes = "$fast_install"; then $ECHO "\ program=lt-'$outputname'$exeext progdir=\"\$thisdir/$objdir\" if test ! -f \"\$progdir/\$program\" || { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\ test \"X\$file\" != \"X\$progdir/\$program\"; }; then file=\"\$\$-\$program\" if test ! -d \"\$progdir\"; then $MKDIR \"\$progdir\" else $RM \"\$progdir/\$file\" fi" $ECHO "\ # relink executable if necessary if test -n \"\$relink_command\"; then if relink_command_output=\`eval \$relink_command 2>&1\`; then : else \$ECHO \"\$relink_command_output\" >&2 $RM \"\$progdir/\$file\" exit 1 fi fi $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || { $RM \"\$progdir/\$program\"; $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } $RM \"\$progdir/\$file\" fi" else $ECHO "\ program='$outputname' progdir=\"\$thisdir/$objdir\" " fi $ECHO "\ if test -f \"\$progdir/\$program\"; then" # fixup the dll searchpath if we need to. # # Fix the DLL searchpath if we need to. Do this before prepending # to shlibpath, because on Windows, both are PATH and uninstalled # libraries must come first. if test -n "$dllsearchpath"; then $ECHO "\ # Add the dll search path components to the executable PATH PATH=$dllsearchpath:\$PATH " fi # Export our shlibpath_var if we have one. if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then $ECHO "\ # Add our own library path to $shlibpath_var $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" # Some systems cannot cope with colon-terminated $shlibpath_var # The second colon is a workaround for a bug in BeOS R4 sed $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` export $shlibpath_var " fi $ECHO "\ if test \"\$libtool_execute_magic\" != \"$magic\"; then # Run the actual program with our arguments. func_exec_program \${1+\"\$@\"} fi else # The program doesn't exist. \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 exit 1 fi fi\ " } # func_emit_cwrapperexe_src # emit the source code for a wrapper executable on stdout # Must ONLY be called from within func_mode_link because # it depends on a number of variable set therein. func_emit_cwrapperexe_src () { cat < #include #ifdef _MSC_VER # include # include # include #else # include # include # ifdef __CYGWIN__ # include # endif #endif #include #include #include #include #include #include #include #include #define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) /* declarations of non-ANSI functions */ #if defined __MINGW32__ # ifdef __STRICT_ANSI__ int _putenv (const char *); # endif #elif defined __CYGWIN__ # ifdef __STRICT_ANSI__ char *realpath (const char *, char *); int putenv (char *); int setenv (const char *, const char *, int); # endif /* #elif defined other_platform || defined ... */ #endif /* portability defines, excluding path handling macros */ #if defined _MSC_VER # define setmode _setmode # define stat _stat # define chmod _chmod # define getcwd _getcwd # define putenv _putenv # define S_IXUSR _S_IEXEC #elif defined __MINGW32__ # define setmode _setmode # define stat _stat # define chmod _chmod # define getcwd _getcwd # define putenv _putenv #elif defined __CYGWIN__ # define HAVE_SETENV # define FOPEN_WB "wb" /* #elif defined other platforms ... */ #endif #if defined PATH_MAX # define LT_PATHMAX PATH_MAX #elif defined MAXPATHLEN # define LT_PATHMAX MAXPATHLEN #else # define LT_PATHMAX 1024 #endif #ifndef S_IXOTH # define S_IXOTH 0 #endif #ifndef S_IXGRP # define S_IXGRP 0 #endif /* path handling portability macros */ #ifndef DIR_SEPARATOR # define DIR_SEPARATOR '/' # define PATH_SEPARATOR ':' #endif #if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ defined __OS2__ # define HAVE_DOS_BASED_FILE_SYSTEM # define FOPEN_WB "wb" # ifndef DIR_SEPARATOR_2 # define DIR_SEPARATOR_2 '\\' # endif # ifndef PATH_SEPARATOR_2 # define PATH_SEPARATOR_2 ';' # endif #endif #ifndef DIR_SEPARATOR_2 # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) #else /* DIR_SEPARATOR_2 */ # define IS_DIR_SEPARATOR(ch) \ (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) #endif /* DIR_SEPARATOR_2 */ #ifndef PATH_SEPARATOR_2 # define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) #else /* PATH_SEPARATOR_2 */ # define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) #endif /* PATH_SEPARATOR_2 */ #ifndef FOPEN_WB # define FOPEN_WB "w" #endif #ifndef _O_BINARY # define _O_BINARY 0 #endif #define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) #define XFREE(stale) do { \ if (stale) { free (stale); stale = 0; } \ } while (0) #if defined LT_DEBUGWRAPPER static int lt_debug = 1; #else static int lt_debug = 0; #endif const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ void *xmalloc (size_t num); char *xstrdup (const char *string); const char *base_name (const char *name); char *find_executable (const char *wrapper); char *chase_symlinks (const char *pathspec); int make_executable (const char *path); int check_executable (const char *path); char *strendzap (char *str, const char *pat); void lt_debugprintf (const char *file, int line, const char *fmt, ...); void lt_fatal (const char *file, int line, const char *message, ...); static const char *nonnull (const char *s); static const char *nonempty (const char *s); void lt_setenv (const char *name, const char *value); char *lt_extend_str (const char *orig_value, const char *add, int to_end); void lt_update_exe_path (const char *name, const char *value); void lt_update_lib_path (const char *name, const char *value); char **prepare_spawn (char **argv); void lt_dump_script (FILE *f); EOF cat <= 0) && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) return 1; else return 0; } int make_executable (const char *path) { int rval = 0; struct stat st; lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", nonempty (path)); if ((!path) || (!*path)) return 0; if (stat (path, &st) >= 0) { rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); } return rval; } /* Searches for the full path of the wrapper. Returns newly allocated full path name if found, NULL otherwise Does not chase symlinks, even on platforms that support them. */ char * find_executable (const char *wrapper) { int has_slash = 0; const char *p; const char *p_next; /* static buffer for getcwd */ char tmp[LT_PATHMAX + 1]; size_t tmp_len; char *concat_name; lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", nonempty (wrapper)); if ((wrapper == NULL) || (*wrapper == '\0')) return NULL; /* Absolute path? */ #if defined HAVE_DOS_BASED_FILE_SYSTEM if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') { concat_name = xstrdup (wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } else { #endif if (IS_DIR_SEPARATOR (wrapper[0])) { concat_name = xstrdup (wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } #if defined HAVE_DOS_BASED_FILE_SYSTEM } #endif for (p = wrapper; *p; p++) if (*p == '/') { has_slash = 1; break; } if (!has_slash) { /* no slashes; search PATH */ const char *path = getenv ("PATH"); if (path != NULL) { for (p = path; *p; p = p_next) { const char *q; size_t p_len; for (q = p; *q; q++) if (IS_PATH_SEPARATOR (*q)) break; p_len = (size_t) (q - p); p_next = (*q == '\0' ? q : q + 1); if (p_len == 0) { /* empty path: current directory */ if (getcwd (tmp, LT_PATHMAX) == NULL) lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", nonnull (strerror (errno))); tmp_len = strlen (tmp); concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, tmp, tmp_len); concat_name[tmp_len] = '/'; strcpy (concat_name + tmp_len + 1, wrapper); } else { concat_name = XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, p, p_len); concat_name[p_len] = '/'; strcpy (concat_name + p_len + 1, wrapper); } if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } } /* not found in PATH; assume curdir */ } /* Relative path | not found in path: prepend cwd */ if (getcwd (tmp, LT_PATHMAX) == NULL) lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", nonnull (strerror (errno))); tmp_len = strlen (tmp); concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, tmp, tmp_len); concat_name[tmp_len] = '/'; strcpy (concat_name + tmp_len + 1, wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); return NULL; } char * chase_symlinks (const char *pathspec) { #ifndef S_ISLNK return xstrdup (pathspec); #else char buf[LT_PATHMAX]; struct stat s; char *tmp_pathspec = xstrdup (pathspec); char *p; int has_symlinks = 0; while (strlen (tmp_pathspec) && !has_symlinks) { lt_debugprintf (__FILE__, __LINE__, "checking path component for symlinks: %s\n", tmp_pathspec); if (lstat (tmp_pathspec, &s) == 0) { if (S_ISLNK (s.st_mode) != 0) { has_symlinks = 1; break; } /* search backwards for last DIR_SEPARATOR */ p = tmp_pathspec + strlen (tmp_pathspec) - 1; while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) p--; if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) { /* no more DIR_SEPARATORS left */ break; } *p = '\0'; } else { lt_fatal (__FILE__, __LINE__, "error accessing file \"%s\": %s", tmp_pathspec, nonnull (strerror (errno))); } } XFREE (tmp_pathspec); if (!has_symlinks) { return xstrdup (pathspec); } tmp_pathspec = realpath (pathspec, buf); if (tmp_pathspec == 0) { lt_fatal (__FILE__, __LINE__, "could not follow symlinks for %s", pathspec); } return xstrdup (tmp_pathspec); #endif } char * strendzap (char *str, const char *pat) { size_t len, patlen; assert (str != NULL); assert (pat != NULL); len = strlen (str); patlen = strlen (pat); if (patlen <= len) { str += len - patlen; if (STREQ (str, pat)) *str = '\0'; } return str; } void lt_debugprintf (const char *file, int line, const char *fmt, ...) { va_list args; if (lt_debug) { (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); va_start (args, fmt); (void) vfprintf (stderr, fmt, args); va_end (args); } } static void lt_error_core (int exit_status, const char *file, int line, const char *mode, const char *message, va_list ap) { fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); vfprintf (stderr, message, ap); fprintf (stderr, ".\n"); if (exit_status >= 0) exit (exit_status); } void lt_fatal (const char *file, int line, const char *message, ...) { va_list ap; va_start (ap, message); lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); va_end (ap); } static const char * nonnull (const char *s) { return s ? s : "(null)"; } static const char * nonempty (const char *s) { return (s && !*s) ? "(empty)" : nonnull (s); } void lt_setenv (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_setenv) setting '%s' to '%s'\n", nonnull (name), nonnull (value)); { #ifdef HAVE_SETENV /* always make a copy, for consistency with !HAVE_SETENV */ char *str = xstrdup (value); setenv (name, str, 1); #else size_t len = strlen (name) + 1 + strlen (value) + 1; char *str = XMALLOC (char, len); sprintf (str, "%s=%s", name, value); if (putenv (str) != EXIT_SUCCESS) { XFREE (str); } #endif } } char * lt_extend_str (const char *orig_value, const char *add, int to_end) { char *new_value; if (orig_value && *orig_value) { size_t orig_value_len = strlen (orig_value); size_t add_len = strlen (add); new_value = XMALLOC (char, add_len + orig_value_len + 1); if (to_end) { strcpy (new_value, orig_value); strcpy (new_value + orig_value_len, add); } else { strcpy (new_value, add); strcpy (new_value + add_len, orig_value); } } else { new_value = xstrdup (add); } return new_value; } void lt_update_exe_path (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", nonnull (name), nonnull (value)); if (name && *name && value && *value) { char *new_value = lt_extend_str (getenv (name), value, 0); /* some systems can't cope with a ':'-terminated path #' */ size_t len = strlen (new_value); while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) { new_value[--len] = '\0'; } lt_setenv (name, new_value); XFREE (new_value); } } void lt_update_lib_path (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", nonnull (name), nonnull (value)); if (name && *name && value && *value) { char *new_value = lt_extend_str (getenv (name), value, 0); lt_setenv (name, new_value); XFREE (new_value); } } EOF case $host_os in mingw*) cat <<"EOF" /* Prepares an argument vector before calling spawn(). Note that spawn() does not by itself call the command interpreter (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); GetVersionEx(&v); v.dwPlatformId == VER_PLATFORM_WIN32_NT; }) ? "cmd.exe" : "command.com"). Instead it simply concatenates the arguments, separated by ' ', and calls CreateProcess(). We must quote the arguments since Win32 CreateProcess() interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a special way: - Space and tab are interpreted as delimiters. They are not treated as delimiters if they are surrounded by double quotes: "...". - Unescaped double quotes are removed from the input. Their only effect is that within double quotes, space and tab are treated like normal characters. - Backslashes not followed by double quotes are not special. - But 2*n+1 backslashes followed by a double quote become n backslashes followed by a double quote (n >= 0): \" -> " \\\" -> \" \\\\\" -> \\" */ #define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" #define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" char ** prepare_spawn (char **argv) { size_t argc; char **new_argv; size_t i; /* Count number of arguments. */ for (argc = 0; argv[argc] != NULL; argc++) ; /* Allocate new argument vector. */ new_argv = XMALLOC (char *, argc + 1); /* Put quoted arguments into the new argument vector. */ for (i = 0; i < argc; i++) { const char *string = argv[i]; if (string[0] == '\0') new_argv[i] = xstrdup ("\"\""); else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) { int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); size_t length; unsigned int backslashes; const char *s; char *quoted_string; char *p; length = 0; backslashes = 0; if (quote_around) length++; for (s = string; *s != '\0'; s++) { char c = *s; if (c == '"') length += backslashes + 1; length++; if (c == '\\') backslashes++; else backslashes = 0; } if (quote_around) length += backslashes + 1; quoted_string = XMALLOC (char, length + 1); p = quoted_string; backslashes = 0; if (quote_around) *p++ = '"'; for (s = string; *s != '\0'; s++) { char c = *s; if (c == '"') { unsigned int j; for (j = backslashes + 1; j > 0; j--) *p++ = '\\'; } *p++ = c; if (c == '\\') backslashes++; else backslashes = 0; } if (quote_around) { unsigned int j; for (j = backslashes; j > 0; j--) *p++ = '\\'; *p++ = '"'; } *p = '\0'; new_argv[i] = quoted_string; } else new_argv[i] = (char *) string; } new_argv[argc] = NULL; return new_argv; } EOF ;; esac cat <<"EOF" void lt_dump_script (FILE* f) { EOF func_emit_wrapper yes | $SED -n -e ' s/^\(.\{79\}\)\(..*\)/\1\ \2/ h s/\([\\"]\)/\\\1/g s/$/\\n/ s/\([^\n]*\).*/ fputs ("\1", f);/p g D' cat <<"EOF" } EOF } # end: func_emit_cwrapperexe_src # func_win32_import_lib_p ARG # True if ARG is an import lib, as indicated by $file_magic_cmd func_win32_import_lib_p () { $debug_cmd case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in *import*) : ;; *) false ;; esac } # func_suncc_cstd_abi # !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! # Several compiler flags select an ABI that is incompatible with the # Cstd library. Avoid specifying it if any are in CXXFLAGS. func_suncc_cstd_abi () { $debug_cmd case " $compile_command " in *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) suncc_use_cstd_abi=no ;; *) suncc_use_cstd_abi=yes ;; esac } # func_mode_link arg... func_mode_link () { $debug_cmd case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) # It is impossible to link a dll without this setting, and # we shouldn't force the makefile maintainer to figure out # what system we are compiling for in order to pass an extra # flag for every libtool invocation. # allow_undefined=no # FIXME: Unfortunately, there are problems with the above when trying # to make a dll that has undefined symbols, in which case not # even a static library is built. For now, we need to specify # -no-undefined on the libtool link line when we can be certain # that all symbols are satisfied, otherwise we get a static library. allow_undefined=yes ;; *) allow_undefined=yes ;; esac libtool_args=$nonopt base_compile="$nonopt $@" compile_command=$nonopt finalize_command=$nonopt compile_rpath= finalize_rpath= compile_shlibpath= finalize_shlibpath= convenience= old_convenience= deplibs= old_deplibs= compiler_flags= linker_flags= dllsearchpath= lib_search_path=`pwd` inst_prefix_dir= new_inherited_linker_flags= avoid_version=no bindir= dlfiles= dlprefiles= dlself=no export_dynamic=no export_symbols= export_symbols_regex= generated= libobjs= ltlibs= module=no no_install=no objs= os2dllname= non_pic_objects= precious_files_regex= prefer_static_libs=no preload=false prev= prevarg= release= rpath= xrpath= perm_rpath= temp_rpath= thread_safe=no vinfo= vinfo_number=no weak_libs= single_module=$wl-single_module func_infer_tag $base_compile # We need to know -static, to get the right output filenames. for arg do case $arg in -shared) test yes != "$build_libtool_libs" \ && func_fatal_configuration "cannot build a shared library" build_old_libs=no break ;; -all-static | -static | -static-libtool-libs) case $arg in -all-static) if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then func_warning "complete static linking is impossible in this configuration" fi if test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=yes ;; -static) if test -z "$pic_flag" && test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=built ;; -static-libtool-libs) if test -z "$pic_flag" && test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=yes ;; esac build_libtool_libs=no build_old_libs=yes break ;; esac done # See if our shared archives depend on static archives. test -n "$old_archive_from_new_cmds" && build_old_libs=yes # Go through the arguments, transforming them on the way. while test "$#" -gt 0; do arg=$1 shift func_quote_for_eval "$arg" qarg=$func_quote_for_eval_unquoted_result func_append libtool_args " $func_quote_for_eval_result" # If the previous option needs an argument, assign it. if test -n "$prev"; then case $prev in output) func_append compile_command " @OUTPUT@" func_append finalize_command " @OUTPUT@" ;; esac case $prev in bindir) bindir=$arg prev= continue ;; dlfiles|dlprefiles) $preload || { # Add the symbol object into the linking commands. func_append compile_command " @SYMFILE@" func_append finalize_command " @SYMFILE@" preload=: } case $arg in *.la | *.lo) ;; # We handle these cases below. force) if test no = "$dlself"; then dlself=needless export_dynamic=yes fi prev= continue ;; self) if test dlprefiles = "$prev"; then dlself=yes elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then dlself=yes else dlself=needless export_dynamic=yes fi prev= continue ;; *) if test dlfiles = "$prev"; then func_append dlfiles " $arg" else func_append dlprefiles " $arg" fi prev= continue ;; esac ;; expsyms) export_symbols=$arg test -f "$arg" \ || func_fatal_error "symbol file '$arg' does not exist" prev= continue ;; expsyms_regex) export_symbols_regex=$arg prev= continue ;; framework) case $host in *-*-darwin*) case "$deplibs " in *" $qarg.ltframework "*) ;; *) func_append deplibs " $qarg.ltframework" # this is fixed later ;; esac ;; esac prev= continue ;; inst_prefix) inst_prefix_dir=$arg prev= continue ;; mllvm) # Clang does not use LLVM to link, so we can simply discard any # '-mllvm $arg' options when doing the link step. prev= continue ;; objectlist) if test -f "$arg"; then save_arg=$arg moreargs= for fil in `cat "$save_arg"` do # func_append moreargs " $fil" arg=$fil # A libtool-controlled object. # Check to see that this really is a libtool object. if func_lalib_unsafe_p "$arg"; then pic_object= non_pic_object= # Read the .lo file func_source "$arg" if test -z "$pic_object" || test -z "$non_pic_object" || test none = "$pic_object" && test none = "$non_pic_object"; then func_fatal_error "cannot find name of object for '$arg'" fi # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result if test none != "$pic_object"; then # Prepend the subdirectory the object is found in. pic_object=$xdir$pic_object if test dlfiles = "$prev"; then if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then func_append dlfiles " $pic_object" prev= continue else # If libtool objects are unsupported, then we need to preload. prev=dlprefiles fi fi # CHECK ME: I think I busted this. -Ossama if test dlprefiles = "$prev"; then # Preload the old-style object. func_append dlprefiles " $pic_object" prev= fi # A PIC object. func_append libobjs " $pic_object" arg=$pic_object fi # Non-PIC object. if test none != "$non_pic_object"; then # Prepend the subdirectory the object is found in. non_pic_object=$xdir$non_pic_object # A standard non-PIC object func_append non_pic_objects " $non_pic_object" if test -z "$pic_object" || test none = "$pic_object"; then arg=$non_pic_object fi else # If the PIC object exists, use it instead. # $xdir was prepended to $pic_object above. non_pic_object=$pic_object func_append non_pic_objects " $non_pic_object" fi else # Only an error if not doing a dry-run. if $opt_dry_run; then # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result func_lo2o "$arg" pic_object=$xdir$objdir/$func_lo2o_result non_pic_object=$xdir$func_lo2o_result func_append libobjs " $pic_object" func_append non_pic_objects " $non_pic_object" else func_fatal_error "'$arg' is not a valid libtool object" fi fi done else func_fatal_error "link input file '$arg' does not exist" fi arg=$save_arg prev= continue ;; os2dllname) os2dllname=$arg prev= continue ;; precious_regex) precious_files_regex=$arg prev= continue ;; release) release=-$arg prev= continue ;; rpath | xrpath) # We need an absolute path. case $arg in [\\/]* | [A-Za-z]:[\\/]*) ;; *) func_fatal_error "only absolute run-paths are allowed" ;; esac if test rpath = "$prev"; then case "$rpath " in *" $arg "*) ;; *) func_append rpath " $arg" ;; esac else case "$xrpath " in *" $arg "*) ;; *) func_append xrpath " $arg" ;; esac fi prev= continue ;; shrext) shrext_cmds=$arg prev= continue ;; weak) func_append weak_libs " $arg" prev= continue ;; xcclinker) func_append linker_flags " $qarg" func_append compiler_flags " $qarg" prev= func_append compile_command " $qarg" func_append finalize_command " $qarg" continue ;; xcompiler) func_append compiler_flags " $qarg" prev= func_append compile_command " $qarg" func_append finalize_command " $qarg" continue ;; xlinker) func_append linker_flags " $qarg" func_append compiler_flags " $wl$qarg" prev= func_append compile_command " $wl$qarg" func_append finalize_command " $wl$qarg" continue ;; *) eval "$prev=\"\$arg\"" prev= continue ;; esac fi # test -n "$prev" prevarg=$arg case $arg in -all-static) if test -n "$link_static_flag"; then # See comment for -static flag below, for more details. func_append compile_command " $link_static_flag" func_append finalize_command " $link_static_flag" fi continue ;; -allow-undefined) # FIXME: remove this flag sometime in the future. func_fatal_error "'-allow-undefined' must not be used because it is the default" ;; -avoid-version) avoid_version=yes continue ;; -bindir) prev=bindir continue ;; -dlopen) prev=dlfiles continue ;; -dlpreopen) prev=dlprefiles continue ;; -export-dynamic) export_dynamic=yes continue ;; -export-symbols | -export-symbols-regex) if test -n "$export_symbols" || test -n "$export_symbols_regex"; then func_fatal_error "more than one -exported-symbols argument is not allowed" fi if test X-export-symbols = "X$arg"; then prev=expsyms else prev=expsyms_regex fi continue ;; -framework) prev=framework continue ;; -inst-prefix-dir) prev=inst_prefix continue ;; # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:* # so, if we see these flags be careful not to treat them like -L -L[A-Z][A-Z]*:*) case $with_gcc/$host in no/*-*-irix* | /*-*-irix*) func_append compile_command " $arg" func_append finalize_command " $arg" ;; esac continue ;; -L*) func_stripname "-L" '' "$arg" if test -z "$func_stripname_result"; then if test "$#" -gt 0; then func_fatal_error "require no space between '-L' and '$1'" else func_fatal_error "need path for '-L' option" fi fi func_resolve_sysroot "$func_stripname_result" dir=$func_resolve_sysroot_result # We need an absolute path. case $dir in [\\/]* | [A-Za-z]:[\\/]*) ;; *) absdir=`cd "$dir" && pwd` test -z "$absdir" && \ func_fatal_error "cannot determine absolute directory name of '$dir'" dir=$absdir ;; esac case "$deplibs " in *" -L$dir "* | *" $arg "*) # Will only happen for absolute or sysroot arguments ;; *) # Preserve sysroot, but never include relative directories case $dir in [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;; 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*-*-sco3.2v5* | *-*-sco5v6*) # Causes problems with __ctype test X-lc = "X$arg" && continue ;; *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) # Compiler inserts libc in the correct place for threads to work test X-lc = "X$arg" && continue ;; esac elif test X-lc_r = "X$arg"; then case $host in *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*) # Do not include libc_r directly, use -pthread flag. continue ;; esac fi func_append deplibs " $arg" continue ;; -mllvm) prev=mllvm continue ;; -module) module=yes continue ;; # Tru64 UNIX uses -model [arg] to determine the layout of C++ # classes, name mangling, and exception handling. # Darwin uses the -arch flag to determine output architecture. -model|-arch|-isysroot|--sysroot) func_append compiler_flags " $arg" func_append compile_command " $arg" func_append finalize_command " $arg" prev=xcompiler continue ;; -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) func_append compiler_flags " $arg" func_append compile_command " $arg" func_append finalize_command " $arg" case "$new_inherited_linker_flags " in *" $arg "*) ;; * ) func_append new_inherited_linker_flags " $arg" ;; esac continue ;; -multi_module) single_module=$wl-multi_module continue ;; -no-fast-install) fast_install=no continue ;; -no-install) case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*) # The PATH hackery in wrapper scripts is required on Windows # and Darwin in order for the loader to find any dlls it needs. func_warning "'-no-install' is ignored for $host" func_warning "assuming '-no-fast-install' instead" fast_install=no ;; *) no_install=yes ;; esac continue ;; -no-undefined) allow_undefined=no continue ;; -objectlist) prev=objectlist continue ;; -os2dllname) prev=os2dllname continue ;; -o) prev=output ;; -precious-files-regex) prev=precious_regex continue ;; -release) prev=release continue ;; -rpath) prev=rpath continue ;; -R) prev=xrpath continue ;; -R*) func_stripname '-R' '' "$arg" dir=$func_stripname_result # We need an absolute path. case $dir in [\\/]* | [A-Za-z]:[\\/]*) ;; =*) func_stripname '=' '' "$dir" dir=$lt_sysroot$func_stripname_result ;; *) func_fatal_error "only absolute run-paths are allowed" ;; esac case "$xrpath " in *" $dir "*) ;; *) func_append xrpath " $dir" ;; esac continue ;; -shared) # The effects of -shared are defined in a previous loop. continue ;; -shrext) prev=shrext continue ;; -static | -static-libtool-libs) # The effects of -static are defined in a previous loop. # We used to do the same as -all-static on platforms that # didn't have a PIC flag, but the assumption that the effects # would be equivalent was wrong. It would break on at least # Digital Unix and AIX. continue ;; -thread-safe) thread_safe=yes continue ;; -version-info) prev=vinfo continue ;; -version-number) prev=vinfo vinfo_number=yes continue ;; -weak) prev=weak continue ;; -Wc,*) func_stripname '-Wc,' '' "$arg" args=$func_stripname_result arg= save_ifs=$IFS; IFS=, for flag in $args; do IFS=$save_ifs func_quote_for_eval "$flag" func_append arg " $func_quote_for_eval_result" func_append compiler_flags " $func_quote_for_eval_result" done IFS=$save_ifs func_stripname ' ' '' "$arg" arg=$func_stripname_result ;; -Wl,*) func_stripname '-Wl,' '' "$arg" args=$func_stripname_result arg= save_ifs=$IFS; IFS=, for flag in $args; do IFS=$save_ifs func_quote_for_eval "$flag" func_append arg " $wl$func_quote_for_eval_result" func_append compiler_flags " $wl$func_quote_for_eval_result" func_append linker_flags " $func_quote_for_eval_result" done IFS=$save_ifs func_stripname ' ' '' "$arg" arg=$func_stripname_result ;; -Xcompiler) prev=xcompiler continue ;; -Xlinker) prev=xlinker continue ;; -XCClinker) prev=xcclinker continue ;; # -msg_* for osf cc -msg_*) func_quote_for_eval "$arg" arg=$func_quote_for_eval_result ;; # Flags to be passed through unchanged, with rationale: # -64, -mips[0-9] enable 64-bit mode for the SGI compiler # -r[0-9][0-9]* specify processor for the SGI compiler # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler # +DA*, +DD* enable 64-bit mode for the HP compiler # -q* compiler args for the IBM compiler # -m*, -t[45]*, -txscale* architecture-specific flags for GCC # -F/path path to uninstalled frameworks, gcc on darwin # -p, -pg, --coverage, -fprofile-* profiling flags for GCC # -fstack-protector* stack protector flags for GCC # @file GCC response files # -tp=* Portland pgcc target processor selection # --sysroot=* for sysroot support # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization # -specs=* GCC specs files # -stdlib=* select c++ std lib with clang # -fsanitize=* Clang/GCC memory and address sanitizer -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \ -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \ -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \ -specs=*|-fsanitize=*) func_quote_for_eval "$arg" arg=$func_quote_for_eval_result func_append compile_command " $arg" func_append finalize_command " $arg" func_append compiler_flags " $arg" continue ;; -Z*) if test os2 = "`expr $host : '.*\(os2\)'`"; then # OS/2 uses -Zxxx to specify OS/2-specific options compiler_flags="$compiler_flags $arg" func_append compile_command " $arg" func_append finalize_command " $arg" case $arg in -Zlinker | -Zstack) prev=xcompiler ;; esac continue else # Otherwise treat like 'Some other compiler flag' below func_quote_for_eval "$arg" arg=$func_quote_for_eval_result fi ;; # Some other compiler flag. -* | +*) func_quote_for_eval "$arg" arg=$func_quote_for_eval_result ;; *.$objext) # A standard object. func_append objs " $arg" ;; *.lo) # A libtool-controlled object. # Check to see that this really is a libtool object. if func_lalib_unsafe_p "$arg"; then pic_object= non_pic_object= # Read the .lo file func_source "$arg" if test -z "$pic_object" || test -z "$non_pic_object" || test none = "$pic_object" && test none = "$non_pic_object"; then func_fatal_error "cannot find name of object for '$arg'" fi # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result test none = "$pic_object" || { # Prepend the subdirectory the object is found in. pic_object=$xdir$pic_object if test dlfiles = "$prev"; then if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then func_append dlfiles " $pic_object" prev= continue else # If libtool objects are unsupported, then we need to preload. prev=dlprefiles fi fi # CHECK ME: I think I busted this. -Ossama if test dlprefiles = "$prev"; then # Preload the old-style object. func_append dlprefiles " $pic_object" prev= fi # A PIC object. func_append libobjs " $pic_object" arg=$pic_object } # Non-PIC object. if test none != "$non_pic_object"; then # Prepend the subdirectory the object is found in. non_pic_object=$xdir$non_pic_object # A standard non-PIC object func_append non_pic_objects " $non_pic_object" if test -z "$pic_object" || test none = "$pic_object"; then arg=$non_pic_object fi else # If the PIC object exists, use it instead. # $xdir was prepended to $pic_object above. non_pic_object=$pic_object func_append non_pic_objects " $non_pic_object" fi else # Only an error if not doing a dry-run. if $opt_dry_run; then # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result func_lo2o "$arg" pic_object=$xdir$objdir/$func_lo2o_result non_pic_object=$xdir$func_lo2o_result func_append libobjs " $pic_object" func_append non_pic_objects " $non_pic_object" else func_fatal_error "'$arg' is not a valid libtool object" fi fi ;; *.$libext) # An archive. func_append deplibs " $arg" func_append old_deplibs " $arg" continue ;; *.la) # A libtool-controlled library. func_resolve_sysroot "$arg" if test dlfiles = "$prev"; then # This library was specified with -dlopen. func_append dlfiles " $func_resolve_sysroot_result" prev= elif test dlprefiles = "$prev"; then # The library was specified with -dlpreopen. func_append dlprefiles " $func_resolve_sysroot_result" prev= else func_append deplibs " $func_resolve_sysroot_result" fi continue ;; # Some other compiler argument. *) # Unknown arguments in both finalize_command and compile_command need # to be aesthetically quoted because they are evaled later. func_quote_for_eval "$arg" arg=$func_quote_for_eval_result ;; esac # arg # Now actually substitute the argument into the commands. if test -n "$arg"; then func_append compile_command " $arg" func_append finalize_command " $arg" fi done # argument parsing loop test -n "$prev" && \ func_fatal_help "the '$prevarg' option requires an argument" if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then eval arg=\"$export_dynamic_flag_spec\" func_append compile_command " $arg" func_append finalize_command " $arg" fi oldlibs= # calculate the name of the file, without its directory func_basename "$output" outputname=$func_basename_result libobjs_save=$libobjs if test -n "$shlibpath_var"; then # get the directories listed in $shlibpath_var eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\` else shlib_search_path= fi eval sys_lib_search_path=\"$sys_lib_search_path_spec\" eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" # Definition is injected by LT_CONFIG during libtool generation. func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH" func_dirname "$output" "/" "" output_objdir=$func_dirname_result$objdir func_to_tool_file "$output_objdir/" tool_output_objdir=$func_to_tool_file_result # Create the object directory. func_mkdir_p "$output_objdir" # Determine the type of output case $output in "") func_fatal_help "you must specify an output file" ;; *.$libext) linkmode=oldlib ;; *.lo | *.$objext) linkmode=obj ;; *.la) linkmode=lib ;; *) linkmode=prog ;; # Anything else should be a program. esac specialdeplibs= libs= # Find all interdependent deplibs by searching for libraries # that are linked more than once (e.g. -la -lb -la) for deplib in $deplibs; do if $opt_preserve_dup_deps; then case "$libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append libs " $deplib" done if test lib = "$linkmode"; then libs="$predeps $libs $compiler_lib_search_path $postdeps" # Compute libraries that are listed more than once in $predeps # $postdeps and mark them as special (i.e., whose duplicates are # not to be eliminated). pre_post_deps= if $opt_duplicate_compiler_generated_deps; then for pre_post_dep in $predeps $postdeps; do case "$pre_post_deps " in *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; esac func_append pre_post_deps " $pre_post_dep" done fi pre_post_deps= fi deplibs= newdependency_libs= newlib_search_path= need_relink=no # whether we're linking any uninstalled libtool libraries notinst_deplibs= # not-installed libtool libraries notinst_path= # paths that contain not-installed libtool libraries case $linkmode in lib) passes="conv dlpreopen link" for file in $dlfiles $dlprefiles; do case $file in *.la) ;; *) func_fatal_help "libraries can '-dlopen' only libtool libraries: $file" ;; esac done ;; prog) compile_deplibs= finalize_deplibs= alldeplibs=false newdlfiles= newdlprefiles= passes="conv scan dlopen dlpreopen link" ;; *) passes="conv" ;; esac for pass in $passes; do # The preopen pass in lib mode reverses $deplibs; put it back here # so that -L comes before libs that need it for instance... if test lib,link = "$linkmode,$pass"; then ## FIXME: Find the place where the list is rebuilt in the wrong ## order, and fix it there properly tmp_deplibs= for deplib in $deplibs; do tmp_deplibs="$deplib $tmp_deplibs" done deplibs=$tmp_deplibs fi if test lib,link = "$linkmode,$pass" || test prog,scan = "$linkmode,$pass"; then libs=$deplibs deplibs= fi if test prog = "$linkmode"; then case $pass in dlopen) libs=$dlfiles ;; dlpreopen) libs=$dlprefiles ;; link) libs="$deplibs %DEPLIBS%" test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs" ;; esac fi if test lib,dlpreopen = "$linkmode,$pass"; then # Collect and forward deplibs of preopened libtool libs for lib in $dlprefiles; do # Ignore non-libtool-libs dependency_libs= func_resolve_sysroot "$lib" case $lib in *.la) func_source "$func_resolve_sysroot_result" ;; esac # Collect preopened libtool deplibs, except any this library # has declared as weak libs for deplib in $dependency_libs; do func_basename "$deplib" deplib_base=$func_basename_result case " $weak_libs " in *" $deplib_base "*) ;; *) func_append deplibs " $deplib" ;; esac done done libs=$dlprefiles fi if test dlopen = "$pass"; then # Collect dlpreopened libraries save_deplibs=$deplibs deplibs= fi for deplib in $libs; do lib= found=false case $deplib in -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else func_append compiler_flags " $deplib" if test lib = "$linkmode"; then case "$new_inherited_linker_flags " in *" $deplib "*) ;; * ) func_append new_inherited_linker_flags " $deplib" ;; esac fi fi continue ;; -l*) if test lib != "$linkmode" && test prog != "$linkmode"; then func_warning "'-l' is ignored for archives/objects" continue fi func_stripname '-l' '' "$deplib" name=$func_stripname_result if test lib = "$linkmode"; then searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" else searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" fi for searchdir in $searchdirs; do for search_ext in .la $std_shrext .so .a; do # Search the libtool library lib=$searchdir/lib$name$search_ext if test -f "$lib"; then if test .la = "$search_ext"; then found=: else found=false fi break 2 fi done done if $found; then # deplib is a libtool library # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, # We need to do some special things here, and not later. if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $deplib "*) if func_lalib_p "$lib"; then library_names= old_library= func_source "$lib" for l in $old_library $library_names; do ll=$l done if test "X$ll" = "X$old_library"; then # only static version available found=false func_dirname "$lib" "" "." ladir=$func_dirname_result lib=$ladir/$old_library if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" fi continue fi fi ;; *) ;; esac fi else # deplib doesn't seem to be a libtool library if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" fi continue fi ;; # -l *.ltframework) if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" if test lib = "$linkmode"; then case "$new_inherited_linker_flags " in *" $deplib "*) ;; * ) func_append new_inherited_linker_flags " $deplib" ;; esac fi fi continue ;; -L*) case $linkmode in lib) deplibs="$deplib $deplibs" test conv = "$pass" && continue newdependency_libs="$deplib $newdependency_libs" func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; prog) if test conv = "$pass"; then deplibs="$deplib $deplibs" continue fi if test scan = "$pass"; then deplibs="$deplib $deplibs" else compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" fi func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; *) func_warning "'-L' is ignored for archives/objects" ;; esac # linkmode continue ;; # -L -R*) if test link = "$pass"; then func_stripname '-R' '' "$deplib" func_resolve_sysroot "$func_stripname_result" dir=$func_resolve_sysroot_result # Make sure the xrpath contains only unique directories. case "$xrpath " in *" $dir "*) ;; *) func_append xrpath " $dir" ;; esac fi deplibs="$deplib $deplibs" continue ;; *.la) func_resolve_sysroot "$deplib" lib=$func_resolve_sysroot_result ;; *.$libext) if test conv = "$pass"; then deplibs="$deplib $deplibs" continue fi case $linkmode in lib) # Linking convenience modules into shared libraries is allowed, # but linking other static libraries is non-portable. case " $dlpreconveniencelibs " in *" $deplib "*) ;; *) valid_a_lib=false case $deplibs_check_method in match_pattern*) set dummy $deplibs_check_method; shift match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ | $EGREP "$match_pattern_regex" > /dev/null; then valid_a_lib=: fi ;; pass_all) valid_a_lib=: ;; esac if $valid_a_lib; then echo $ECHO "*** Warning: Linking the shared library $output against the" $ECHO "*** static library $deplib is not portable!" deplibs="$deplib $deplibs" else echo $ECHO "*** Warning: Trying to link with static lib archive $deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because the file extensions .$libext of this argument makes me believe" echo "*** that it is just a static archive that I should not use here." fi ;; esac continue ;; prog) if test link != "$pass"; then deplibs="$deplib $deplibs" else compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" fi continue ;; esac # linkmode ;; # *.$libext *.lo | *.$objext) if test conv = "$pass"; then deplibs="$deplib $deplibs" elif test prog = "$linkmode"; then if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then # If there is no dlopen support or we're linking statically, # we need to preload. func_append newdlprefiles " $deplib" compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else func_append newdlfiles " $deplib" fi fi continue ;; %DEPLIBS%) alldeplibs=: continue ;; esac # case $deplib $found || test -f "$lib" \ || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'" # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$lib" \ || func_fatal_error "'$lib' is not a valid libtool archive" func_dirname "$lib" "" "." ladir=$func_dirname_result dlname= dlopen= dlpreopen= libdir= library_names= old_library= inherited_linker_flags= # If the library was installed with an old release of libtool, # it will not redefine variables installed, or shouldnotlink installed=yes shouldnotlink=no avoidtemprpath= # Read the .la file func_source "$lib" # Convert "-framework foo" to "foo.ltframework" if test -n "$inherited_linker_flags"; then tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do case " $new_inherited_linker_flags " in *" $tmp_inherited_linker_flag "*) ;; *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; esac done fi dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` if test lib,link = "$linkmode,$pass" || test prog,scan = "$linkmode,$pass" || { test prog != "$linkmode" && test lib != "$linkmode"; }; then test -n "$dlopen" && func_append dlfiles " $dlopen" test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" fi if test conv = "$pass"; then # Only check for convenience libraries deplibs="$lib $deplibs" if test -z "$libdir"; then if test -z "$old_library"; then func_fatal_error "cannot find name of link library for '$lib'" fi # It is a libtool convenience library, so add in its objects. func_append convenience " $ladir/$objdir/$old_library" func_append old_convenience " $ladir/$objdir/$old_library" tmp_libs= for deplib in $dependency_libs; do deplibs="$deplib $deplibs" if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append tmp_libs " $deplib" done elif test prog != "$linkmode" && test lib != "$linkmode"; then func_fatal_error "'$lib' is not a convenience library" fi continue fi # $pass = conv # Get the name of the library we link against. linklib= if test -n "$old_library" && { test yes = "$prefer_static_libs" || test built,no = "$prefer_static_libs,$installed"; }; then linklib=$old_library else for l in $old_library $library_names; do linklib=$l done fi if test -z "$linklib"; then func_fatal_error "cannot find name of link library for '$lib'" fi # This library was specified with -dlopen. if test dlopen = "$pass"; then test -z "$libdir" \ && func_fatal_error "cannot -dlopen a convenience library: '$lib'" if test -z "$dlname" || test yes != "$dlopen_support" || test no = "$build_libtool_libs" then # If there is no dlname, no dlopen support or we're linking # statically, we need to preload. We also need to preload any # dependent libraries so libltdl's deplib preloader doesn't # bomb out in the load deplibs phase. func_append dlprefiles " $lib $dependency_libs" else func_append newdlfiles " $lib" fi continue fi # $pass = dlopen # We need an absolute path. case $ladir in [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;; *) abs_ladir=`cd "$ladir" && pwd` if test -z "$abs_ladir"; then func_warning "cannot determine absolute directory name of '$ladir'" func_warning "passing it literally to the linker, although it might fail" abs_ladir=$ladir fi ;; esac func_basename "$lib" laname=$func_basename_result # Find the relevant object directory and library name. if test yes = "$installed"; then if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then func_warning "library '$lib' was moved." dir=$ladir absdir=$abs_ladir libdir=$abs_ladir else dir=$lt_sysroot$libdir absdir=$lt_sysroot$libdir fi test yes = "$hardcode_automatic" && avoidtemprpath=yes else if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then dir=$ladir absdir=$abs_ladir # Remove this search path later func_append notinst_path " $abs_ladir" else dir=$ladir/$objdir absdir=$abs_ladir/$objdir # Remove this search path later func_append notinst_path " $abs_ladir" fi fi # $installed = yes func_stripname 'lib' '.la' "$laname" name=$func_stripname_result # This library was specified with -dlpreopen. if test dlpreopen = "$pass"; then if test -z "$libdir" && test prog = "$linkmode"; then func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'" fi case $host in # special handling for platforms with PE-DLLs. *cygwin* | *mingw* | *cegcc* ) # Linker will automatically link against shared library if both # static and shared are present. Therefore, ensure we extract # symbols from the import library if a shared library is present # (otherwise, the dlopen module name will be incorrect). We do # this by putting the import library name into $newdlprefiles. # We recover the dlopen module name by 'saving' the la file # name in a special purpose variable, and (later) extracting the # dlname from the la file. if test -n "$dlname"; then func_tr_sh "$dir/$linklib" eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" func_append newdlprefiles " $dir/$linklib" else func_append newdlprefiles " $dir/$old_library" # Keep a list of preopened convenience libraries to check # that they are being used correctly in the link pass. test -z "$libdir" && \ func_append dlpreconveniencelibs " $dir/$old_library" fi ;; * ) # Prefer using a static library (so that no silly _DYNAMIC symbols # are required to link). if test -n "$old_library"; then func_append newdlprefiles " $dir/$old_library" # Keep a list of preopened convenience libraries to check # that they are being used correctly in the link pass. test -z "$libdir" && \ func_append dlpreconveniencelibs " $dir/$old_library" # Otherwise, use the dlname, so that lt_dlopen finds it. elif test -n "$dlname"; then func_append newdlprefiles " $dir/$dlname" else func_append newdlprefiles " $dir/$linklib" fi ;; esac fi # $pass = dlpreopen if test -z "$libdir"; then # Link the convenience library if test lib = "$linkmode"; then deplibs="$dir/$old_library $deplibs" elif test prog,link = "$linkmode,$pass"; then compile_deplibs="$dir/$old_library $compile_deplibs" finalize_deplibs="$dir/$old_library $finalize_deplibs" else deplibs="$lib $deplibs" # used for prog,scan pass fi continue fi if test prog = "$linkmode" && test link != "$pass"; then func_append newlib_search_path " $ladir" deplibs="$lib $deplibs" linkalldeplibs=false if test no != "$link_all_deplibs" || test -z "$library_names" || test no = "$build_libtool_libs"; then linkalldeplibs=: fi tmp_libs= for deplib in $dependency_libs; do case $deplib in -L*) func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; esac # Need to link against all dependency_libs? if $linkalldeplibs; then deplibs="$deplib $deplibs" else # Need to hardcode shared library paths # or/and link against static libraries newdependency_libs="$deplib $newdependency_libs" fi if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append tmp_libs " $deplib" done # for deplib continue fi # $linkmode = prog... if test prog,link = "$linkmode,$pass"; then if test -n "$library_names" && { { test no = "$prefer_static_libs" || test built,yes = "$prefer_static_libs,$installed"; } || test -z "$old_library"; }; then # We need to hardcode the library path if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then # Make sure the rpath contains only unique directories. case $temp_rpath: in *"$absdir:"*) ;; *) func_append temp_rpath "$absdir:" ;; esac fi # Hardcode the library path. # Skip directories that are in the system default run-time # search path. case " $sys_lib_dlsearch_path " in *" $absdir "*) ;; *) case "$compile_rpath " in *" $absdir "*) ;; *) func_append compile_rpath " $absdir" ;; esac ;; esac case " $sys_lib_dlsearch_path " in *" $libdir "*) ;; *) case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac ;; esac fi # $linkmode,$pass = prog,link... if $alldeplibs && { test pass_all = "$deplibs_check_method" || { test yes = "$build_libtool_libs" && test -n "$library_names"; }; }; then # We only need to search for static libraries continue fi fi link_static=no # Whether the deplib will be linked statically use_static_libs=$prefer_static_libs if test built = "$use_static_libs" && test yes = "$installed"; then use_static_libs=no fi if test -n "$library_names" && { test no = "$use_static_libs" || test -z "$old_library"; }; then case $host in *cygwin* | *mingw* | *cegcc* | *os2*) # No point in relinking DLLs because paths are not encoded func_append notinst_deplibs " $lib" need_relink=no ;; *) if test no = "$installed"; then func_append notinst_deplibs " $lib" need_relink=yes fi ;; esac # This is a shared library # Warn about portability, can't link against -module's on some # systems (darwin). Don't bleat about dlopened modules though! dlopenmodule= for dlpremoduletest in $dlprefiles; do if test "X$dlpremoduletest" = "X$lib"; then dlopenmodule=$dlpremoduletest break fi done if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then echo if test prog = "$linkmode"; then $ECHO "*** Warning: Linking the executable $output against the loadable module" else $ECHO "*** Warning: Linking the shared library $output against the loadable module" fi $ECHO "*** $linklib is not portable!" fi if test lib = "$linkmode" && test yes = "$hardcode_into_libs"; then # Hardcode the library path. # Skip directories that are in the system default run-time # search path. case " $sys_lib_dlsearch_path " in *" $absdir "*) ;; *) case "$compile_rpath " in *" $absdir "*) ;; *) func_append compile_rpath " $absdir" ;; esac ;; esac case " $sys_lib_dlsearch_path " in *" $libdir "*) ;; *) case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac ;; esac fi if test -n "$old_archive_from_expsyms_cmds"; then # figure out the soname set dummy $library_names shift realname=$1 shift libname=`eval "\\$ECHO \"$libname_spec\""` # use dlname if we got it. it's perfectly good, no? if test -n "$dlname"; then soname=$dlname elif test -n "$soname_spec"; then # bleh windows case $host in *cygwin* | mingw* | *cegcc* | *os2*) func_arith $current - $age major=$func_arith_result versuffix=-$major ;; esac eval soname=\"$soname_spec\" else soname=$realname fi # Make a new name for the extract_expsyms_cmds to use soroot=$soname func_basename "$soroot" soname=$func_basename_result func_stripname 'lib' '.dll' "$soname" newlib=libimp-$func_stripname_result.a # If the library has no export list, then create one now if test -f "$output_objdir/$soname-def"; then : else func_verbose "extracting exported symbol list from '$soname'" func_execute_cmds "$extract_expsyms_cmds" 'exit $?' fi # Create $newlib if test -f "$output_objdir/$newlib"; then :; else func_verbose "generating import library for '$soname'" func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' fi # make sure the library variables are pointing to the new library dir=$output_objdir linklib=$newlib fi # test -n "$old_archive_from_expsyms_cmds" if test prog = "$linkmode" || test relink != "$opt_mode"; then add_shlibpath= add_dir= add= lib_linked=yes case $hardcode_action in immediate | unsupported) if test no = "$hardcode_direct"; then add=$dir/$linklib case $host in *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; *-*-sysv4*uw2*) add_dir=-L$dir ;; *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ *-*-unixware7*) add_dir=-L$dir ;; *-*-darwin* ) # if the lib is a (non-dlopened) module then we cannot # link against it, someone is ignoring the earlier warnings if /usr/bin/file -L $add 2> /dev/null | $GREP ": [^:]* bundle" >/dev/null; then if test "X$dlopenmodule" != "X$lib"; then $ECHO "*** Warning: lib $linklib is a module, not a shared library" if test -z "$old_library"; then echo echo "*** And there doesn't seem to be a static archive available" echo "*** The link will probably fail, sorry" else add=$dir/$old_library fi elif test -n "$old_library"; then add=$dir/$old_library fi fi esac elif test no = "$hardcode_minus_L"; then case $host in *-*-sunos*) add_shlibpath=$dir ;; esac add_dir=-L$dir add=-l$name elif test no = "$hardcode_shlibpath_var"; then add_shlibpath=$dir add=-l$name else lib_linked=no fi ;; relink) if test yes = "$hardcode_direct" && test no = "$hardcode_direct_absolute"; then add=$dir/$linklib elif test yes = "$hardcode_minus_L"; then add_dir=-L$absdir # Try looking first in the location we're being installed to. if test -n "$inst_prefix_dir"; then case $libdir in [\\/]*) func_append add_dir " -L$inst_prefix_dir$libdir" ;; esac fi add=-l$name elif test yes = "$hardcode_shlibpath_var"; then add_shlibpath=$dir add=-l$name else lib_linked=no fi ;; *) lib_linked=no ;; esac if test yes != "$lib_linked"; then func_fatal_configuration "unsupported hardcode properties" fi if test -n "$add_shlibpath"; then case :$compile_shlibpath: in *":$add_shlibpath:"*) ;; *) func_append compile_shlibpath "$add_shlibpath:" ;; esac fi if test prog = "$linkmode"; then test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" test -n "$add" && compile_deplibs="$add $compile_deplibs" else test -n "$add_dir" && deplibs="$add_dir $deplibs" test -n "$add" && deplibs="$add $deplibs" if test yes != "$hardcode_direct" && test yes != "$hardcode_minus_L" && test yes = "$hardcode_shlibpath_var"; then case :$finalize_shlibpath: in *":$libdir:"*) ;; *) func_append finalize_shlibpath "$libdir:" ;; esac fi fi fi if test prog = "$linkmode" || test relink = "$opt_mode"; then add_shlibpath= add_dir= add= # Finalize command for both is simple: just hardcode it. if test yes = "$hardcode_direct" && test no = "$hardcode_direct_absolute"; then add=$libdir/$linklib elif test yes = "$hardcode_minus_L"; then add_dir=-L$libdir add=-l$name elif test yes = "$hardcode_shlibpath_var"; then case :$finalize_shlibpath: in *":$libdir:"*) ;; *) func_append finalize_shlibpath "$libdir:" ;; esac add=-l$name elif test yes = "$hardcode_automatic"; then if test -n "$inst_prefix_dir" && test -f "$inst_prefix_dir$libdir/$linklib"; then add=$inst_prefix_dir$libdir/$linklib else add=$libdir/$linklib fi else # We cannot seem to hardcode it, guess we'll fake it. add_dir=-L$libdir # Try looking first in the location we're being installed to. if test -n "$inst_prefix_dir"; then case $libdir in [\\/]*) func_append add_dir " -L$inst_prefix_dir$libdir" ;; esac fi add=-l$name fi if test prog = "$linkmode"; then test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" test -n "$add" && finalize_deplibs="$add $finalize_deplibs" else test -n "$add_dir" && deplibs="$add_dir $deplibs" test -n "$add" && deplibs="$add $deplibs" fi fi elif test prog = "$linkmode"; then # Here we assume that one of hardcode_direct or hardcode_minus_L # is not unsupported. This is valid on all known static and # shared platforms. if test unsupported != "$hardcode_direct"; then test -n "$old_library" && linklib=$old_library compile_deplibs="$dir/$linklib $compile_deplibs" finalize_deplibs="$dir/$linklib $finalize_deplibs" else compile_deplibs="-l$name -L$dir $compile_deplibs" finalize_deplibs="-l$name -L$dir $finalize_deplibs" fi elif test yes = "$build_libtool_libs"; then # Not a shared library if test pass_all != "$deplibs_check_method"; then # We're trying link a shared library against a static one # but the system doesn't support it. # Just print a warning and add the library to dependency_libs so # that the program can be linked against the static library. echo $ECHO "*** Warning: This system cannot link to static lib archive $lib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have." if test yes = "$module"; then echo "*** But as you try to build a module library, libtool will still create " echo "*** a static module, that should work as long as the dlopening application" echo "*** is linked with the -dlopen flag to resolve symbols at runtime." if test -z "$global_symbol_pipe"; then echo echo "*** However, this would only work if libtool was able to extract symbol" echo "*** lists from a program, using 'nm' or equivalent, but libtool could" echo "*** not find such a program. So, this module is probably useless." echo "*** 'nm' from GNU binutils and a full rebuild may help." fi if test no = "$build_old_libs"; then build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi fi else deplibs="$dir/$old_library $deplibs" link_static=yes fi fi # link shared/static library? if test lib = "$linkmode"; then if test -n "$dependency_libs" && { test yes != "$hardcode_into_libs" || test yes = "$build_old_libs" || test yes = "$link_static"; }; then # Extract -R from dependency_libs temp_deplibs= for libdir in $dependency_libs; do case $libdir in -R*) func_stripname '-R' '' "$libdir" temp_xrpath=$func_stripname_result case " $xrpath " in *" $temp_xrpath "*) ;; *) func_append xrpath " $temp_xrpath";; esac;; *) func_append temp_deplibs " $libdir";; esac done dependency_libs=$temp_deplibs fi func_append newlib_search_path " $absdir" # Link against this library test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" # ... and its dependency_libs tmp_libs= for deplib in $dependency_libs; do newdependency_libs="$deplib $newdependency_libs" case $deplib in -L*) func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result";; *) func_resolve_sysroot "$deplib" ;; esac if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $func_resolve_sysroot_result "*) func_append specialdeplibs " $func_resolve_sysroot_result" ;; esac fi func_append tmp_libs " $func_resolve_sysroot_result" done if test no != "$link_all_deplibs"; then # Add the search paths of all dependency libraries for deplib in $dependency_libs; do path= case $deplib in -L*) path=$deplib ;; *.la) func_resolve_sysroot "$deplib" deplib=$func_resolve_sysroot_result func_dirname "$deplib" "" "." dir=$func_dirname_result # We need an absolute path. case $dir in [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; *) absdir=`cd "$dir" && pwd` if test -z "$absdir"; then func_warning "cannot determine absolute directory name of '$dir'" absdir=$dir fi ;; esac if $GREP "^installed=no" $deplib > /dev/null; then case $host in *-*-darwin*) depdepl= eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` if test -n "$deplibrary_names"; then for tmp in $deplibrary_names; do depdepl=$tmp done if test -f "$absdir/$objdir/$depdepl"; then depdepl=$absdir/$objdir/$depdepl darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` if test -z "$darwin_install_name"; then darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` fi func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl" func_append linker_flags " -dylib_file $darwin_install_name:$depdepl" path= fi fi ;; *) path=-L$absdir/$objdir ;; esac else eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` test -z "$libdir" && \ func_fatal_error "'$deplib' is not a valid libtool archive" test "$absdir" != "$libdir" && \ func_warning "'$deplib' seems to be moved" path=-L$absdir fi ;; esac case " $deplibs " in *" $path "*) ;; *) deplibs="$path $deplibs" ;; esac done fi # link_all_deplibs != no fi # linkmode = lib done # for deplib in $libs if test link = "$pass"; then if test prog = "$linkmode"; then compile_deplibs="$new_inherited_linker_flags $compile_deplibs" finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" else compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` fi fi dependency_libs=$newdependency_libs if test dlpreopen = "$pass"; then # Link the dlpreopened libraries before other libraries for deplib in $save_deplibs; do deplibs="$deplib $deplibs" done fi if test dlopen != "$pass"; then test conv = "$pass" || { # Make sure lib_search_path contains only unique directories. lib_search_path= for dir in $newlib_search_path; do case "$lib_search_path " in *" $dir "*) ;; *) func_append lib_search_path " $dir" ;; esac done newlib_search_path= } if test prog,link = "$linkmode,$pass"; then vars="compile_deplibs finalize_deplibs" else vars=deplibs fi for var in $vars dependency_libs; do # Add libraries to $var in reverse order eval tmp_libs=\"\$$var\" new_libs= for deplib in $tmp_libs; do # FIXME: Pedantically, this is the right thing to do, so # that some nasty dependency loop isn't accidentally # broken: #new_libs="$deplib $new_libs" # Pragmatically, this seems to cause very few problems in # practice: case $deplib in -L*) new_libs="$deplib $new_libs" ;; -R*) ;; *) # And here is the reason: when a library appears more # than once as an explicit dependence of a library, or # is implicitly linked in more than once by the # compiler, it is considered special, and multiple # occurrences thereof are not removed. Compare this # with having the same library being listed as a # dependency of multiple other libraries: in this case, # we know (pedantically, we assume) the library does not # need to be listed more than once, so we keep only the # last copy. This is not always right, but it is rare # enough that we require users that really mean to play # such unportable linking tricks to link the library # using -Wl,-lname, so that libtool does not consider it # for duplicate removal. case " $specialdeplibs " in *" $deplib "*) new_libs="$deplib $new_libs" ;; *) case " $new_libs " in *" $deplib "*) ;; *) new_libs="$deplib $new_libs" ;; esac ;; esac ;; esac done tmp_libs= for deplib in $new_libs; do case $deplib in -L*) case " $tmp_libs " in *" $deplib "*) ;; *) func_append tmp_libs " $deplib" ;; esac ;; *) func_append tmp_libs " $deplib" ;; esac done eval $var=\"$tmp_libs\" done # for var fi # Add Sun CC postdeps if required: test CXX = "$tagname" && { case $host_os in linux*) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*) # Sun C++ 5.9 func_suncc_cstd_abi if test no != "$suncc_use_cstd_abi"; then func_append postdeps ' -library=Cstd -library=Crun' fi ;; esac ;; solaris*) func_cc_basename "$CC" case $func_cc_basename_result in CC* | sunCC*) func_suncc_cstd_abi if test no != "$suncc_use_cstd_abi"; then func_append postdeps ' -library=Cstd -library=Crun' fi ;; esac ;; esac } # Last step: remove runtime libs from dependency_libs # (they stay in deplibs) tmp_libs= for i in $dependency_libs; do case " $predeps $postdeps $compiler_lib_search_path " in *" $i "*) i= ;; esac if test -n "$i"; then func_append tmp_libs " $i" fi done dependency_libs=$tmp_libs done # for pass if test prog = "$linkmode"; then dlfiles=$newdlfiles fi if test prog = "$linkmode" || test lib = "$linkmode"; then dlprefiles=$newdlprefiles fi case $linkmode in oldlib) if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then func_warning "'-dlopen' is ignored for archives" fi case " $deplibs" in *\ -l* | *\ -L*) func_warning "'-l' and '-L' are ignored for archives" ;; esac test -n "$rpath" && \ func_warning "'-rpath' is ignored for archives" test -n "$xrpath" && \ func_warning "'-R' is ignored for archives" test -n "$vinfo" && \ func_warning "'-version-info/-version-number' is ignored for archives" test -n "$release" && \ func_warning "'-release' is ignored for archives" test -n "$export_symbols$export_symbols_regex" && \ func_warning "'-export-symbols' is ignored for archives" # Now set the variables for building old libraries. build_libtool_libs=no oldlibs=$output func_append objs "$old_deplibs" ;; lib) # Make sure we only generate libraries of the form 'libNAME.la'. case $outputname in lib*) func_stripname 'lib' '.la' "$outputname" name=$func_stripname_result eval shared_ext=\"$shrext_cmds\" eval libname=\"$libname_spec\" ;; *) test no = "$module" \ && func_fatal_help "libtool library '$output' must begin with 'lib'" if test no != "$need_lib_prefix"; then # Add the "lib" prefix for modules if required func_stripname '' '.la' "$outputname" name=$func_stripname_result eval shared_ext=\"$shrext_cmds\" eval libname=\"$libname_spec\" else func_stripname '' '.la' "$outputname" libname=$func_stripname_result fi ;; esac if test -n "$objs"; then if test pass_all != "$deplibs_check_method"; then func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs" else echo $ECHO "*** Warning: Linking the shared library $output against the non-libtool" $ECHO "*** objects $objs is not portable!" func_append libobjs " $objs" fi fi test no = "$dlself" \ || func_warning "'-dlopen self' is ignored for libtool libraries" set dummy $rpath shift test 1 -lt "$#" \ && func_warning "ignoring multiple '-rpath's for a libtool library" install_libdir=$1 oldlibs= if test -z "$rpath"; then if test yes = "$build_libtool_libs"; then # Building a libtool convenience library. # Some compilers have problems with a '.al' extension so # convenience libraries should have the same extension an # archive normally would. oldlibs="$output_objdir/$libname.$libext $oldlibs" build_libtool_libs=convenience build_old_libs=yes fi test -n "$vinfo" && \ func_warning "'-version-info/-version-number' is ignored for convenience libraries" test -n "$release" && \ func_warning "'-release' is ignored for convenience libraries" else # Parse the version information argument. save_ifs=$IFS; IFS=: set dummy $vinfo 0 0 0 shift IFS=$save_ifs test -n "$7" && \ func_fatal_help "too many parameters to '-version-info'" # convert absolute version numbers to libtool ages # this retains compatibility with .la files and attempts # to make the code below a bit more comprehensible case $vinfo_number in yes) number_major=$1 number_minor=$2 number_revision=$3 # # There are really only two kinds -- those that # use the current revision as the major version # and those that subtract age and use age as # a minor version. But, then there is irix # that has an extra 1 added just for fun # case $version_type in # correct linux to gnu/linux during the next big refactor darwin|freebsd-elf|linux|osf|windows|none) func_arith $number_major + $number_minor current=$func_arith_result age=$number_minor revision=$number_revision ;; freebsd-aout|qnx|sunos) current=$number_major revision=$number_minor age=0 ;; irix|nonstopux) func_arith $number_major + $number_minor current=$func_arith_result age=$number_minor revision=$number_minor lt_irix_increment=no ;; *) func_fatal_configuration "$modename: unknown library version type '$version_type'" ;; esac ;; no) current=$1 revision=$2 age=$3 ;; esac # Check that each of the things are valid numbers. case $current in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "CURRENT '$current' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac case $revision in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "REVISION '$revision' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac case $age in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "AGE '$age' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac if test "$age" -gt "$current"; then func_error "AGE '$age' is greater than the current interface number '$current'" func_fatal_error "'$vinfo' is not valid version information" fi # Calculate the version variables. major= versuffix= verstring= case $version_type in none) ;; darwin) # Like Linux, but with the current version available in # verstring for coding it into the library header func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision # Darwin ld doesn't like 0 for these options... func_arith $current + 1 minor_current=$func_arith_result xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" # On Darwin other compilers case $CC in nagfor*) verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" ;; *) verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" ;; esac ;; freebsd-aout) major=.$current versuffix=.$current.$revision ;; freebsd-elf) func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision ;; irix | nonstopux) if test no = "$lt_irix_increment"; then func_arith $current - $age else func_arith $current - $age + 1 fi major=$func_arith_result case $version_type in nonstopux) verstring_prefix=nonstopux ;; *) verstring_prefix=sgi ;; esac verstring=$verstring_prefix$major.$revision # Add in all the interfaces that we are compatible with. loop=$revision while test 0 -ne "$loop"; do func_arith $revision - $loop iface=$func_arith_result func_arith $loop - 1 loop=$func_arith_result verstring=$verstring_prefix$major.$iface:$verstring done # Before this point, $major must not contain '.'. major=.$major versuffix=$major.$revision ;; linux) # correct to gnu/linux during the next big refactor func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision ;; osf) func_arith $current - $age major=.$func_arith_result versuffix=.$current.$age.$revision verstring=$current.$age.$revision # Add in all the interfaces that we are compatible with. loop=$age while test 0 -ne "$loop"; do func_arith $current - $loop iface=$func_arith_result func_arith $loop - 1 loop=$func_arith_result verstring=$verstring:$iface.0 done # Make executables depend on our current version. func_append verstring ":$current.0" ;; qnx) major=.$current versuffix=.$current ;; sco) major=.$current versuffix=.$current ;; sunos) major=.$current versuffix=.$current.$revision ;; windows) # Use '-' rather than '.', since we only want one # extension on DOS 8.3 file systems. func_arith $current - $age major=$func_arith_result versuffix=-$major ;; *) func_fatal_configuration "unknown library version type '$version_type'" ;; esac # Clear the version info if we defaulted, and they specified a release. if test -z "$vinfo" && test -n "$release"; then major= case $version_type in darwin) # we can't check for "0.0" in archive_cmds due to quoting # problems, so we reset it completely verstring= ;; *) verstring=0.0 ;; esac if test no = "$need_version"; then versuffix= else versuffix=.0.0 fi fi # Remove version info from name if versioning should be avoided if test yes,no = "$avoid_version,$need_version"; then major= versuffix= verstring= fi # Check to see if the archive will have undefined symbols. if test yes = "$allow_undefined"; then if test unsupported = "$allow_undefined_flag"; then if test yes = "$build_old_libs"; then func_warning "undefined symbols not allowed in $host shared libraries; building static only" build_libtool_libs=no else func_fatal_error "can't build $host shared library unless -no-undefined is specified" fi fi else # Don't allow undefined symbols. allow_undefined_flag=$no_undefined_flag fi fi func_generate_dlsyms "$libname" "$libname" : func_append libobjs " $symfileobj" test " " = "$libobjs" && libobjs= if test relink != "$opt_mode"; then # Remove our outputs, but don't remove object files since they # may have been created when compiling PIC objects. removelist= tempremovelist=`$ECHO "$output_objdir/*"` for p in $tempremovelist; do case $p in *.$objext | *.gcno) ;; $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) if test -n "$precious_files_regex"; then if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 then continue fi fi func_append removelist " $p" ;; *) ;; esac done test -n "$removelist" && \ func_show_eval "${RM}r \$removelist" fi # Now set the variables for building old libraries. if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then func_append oldlibs " $output_objdir/$libname.$libext" # Transform .lo files to .o files. oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` fi # Eliminate all temporary directories. #for path in $notinst_path; do # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` #done if test -n "$xrpath"; then # If the user specified any rpath flags, then add them. temp_xrpath= for libdir in $xrpath; do func_replace_sysroot "$libdir" func_append temp_xrpath " -R$func_replace_sysroot_result" case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac done if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then dependency_libs="$temp_xrpath $dependency_libs" fi fi # Make sure dlfiles contains only unique files that won't be dlpreopened old_dlfiles=$dlfiles dlfiles= for lib in $old_dlfiles; do case " $dlprefiles $dlfiles " in *" $lib "*) ;; *) func_append dlfiles " $lib" ;; esac done # Make sure dlprefiles contains only unique files old_dlprefiles=$dlprefiles dlprefiles= for lib in $old_dlprefiles; do case "$dlprefiles " in *" $lib "*) ;; *) func_append dlprefiles " $lib" ;; esac done if test yes = "$build_libtool_libs"; then if test -n "$rpath"; then case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) # these systems don't actually have a c library (as such)! ;; *-*-rhapsody* | *-*-darwin1.[012]) # Rhapsody C library is in the System framework func_append deplibs " System.ltframework" ;; *-*-netbsd*) # Don't link with libc until the a.out ld.so is fixed. ;; *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) # Do not include libc due to us having libc/libc_r. ;; *-*-sco3.2v5* | *-*-sco5v6*) # Causes problems with __ctype ;; *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) # Compiler inserts libc in the correct place for threads to work ;; *) # Add libc to deplibs on all other systems if necessary. if test yes = "$build_libtool_need_lc"; then func_append deplibs " -lc" fi ;; esac fi # Transform deplibs into only deplibs that can be linked in shared. name_save=$name libname_save=$libname release_save=$release versuffix_save=$versuffix major_save=$major # I'm not sure if I'm treating the release correctly. I think # release should show up in the -l (ie -lgmp5) so we don't want to # add it in twice. Is that correct? release= versuffix= major= newdeplibs= droppeddeps=no case $deplibs_check_method in pass_all) # Don't check for shared/static. Everything works. # This might be a little naive. We might want to check # whether the library exists or not. But this is on # osf3 & osf4 and I'm not really sure... Just # implementing what was already the behavior. newdeplibs=$deplibs ;; test_compile) # This code stresses the "libraries are programs" paradigm to its # limits. Maybe even breaks it. We compile a program, linking it # against the deplibs as a proxy for the library. Then we can check # whether they linked in statically or dynamically with ldd. $opt_dry_run || $RM conftest.c cat > conftest.c </dev/null` $nocaseglob else potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` fi for potent_lib in $potential_libs; do # Follow soft links. if ls -lLd "$potent_lib" 2>/dev/null | $GREP " -> " >/dev/null; then continue fi # The statement above tries to avoid entering an # endless loop below, in case of cyclic links. # We might still enter an endless loop, since a link # loop can be closed while we follow links, # but so what? potlib=$potent_lib while test -h "$potlib" 2>/dev/null; do potliblink=`ls -ld $potlib | $SED 's/.* -> //'` case $potliblink in [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;; *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";; esac done if eval $file_magic_cmd \"\$potlib\" 2>/dev/null | $SED -e 10q | $EGREP "$file_magic_regex" > /dev/null; then func_append newdeplibs " $a_deplib" a_deplib= break 2 fi done done fi if test -n "$a_deplib"; then droppeddeps=yes echo $ECHO "*** Warning: linker path does not have real file for library $a_deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because I did check the linker path looking for a file starting" if test -z "$potlib"; then $ECHO "*** with $libname but no candidates were found. (...for file magic test)" else $ECHO "*** with $libname and none of the candidates passed a file format test" $ECHO "*** using a file magic. Last file checked: $potlib" fi fi ;; *) # Add a -L argument. func_append newdeplibs " $a_deplib" ;; esac done # Gone through all deplibs. ;; match_pattern*) set dummy $deplibs_check_method; shift match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` for a_deplib in $deplibs; do case $a_deplib in -l*) func_stripname -l '' "$a_deplib" name=$func_stripname_result if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $a_deplib "*) func_append newdeplibs " $a_deplib" a_deplib= ;; esac fi if test -n "$a_deplib"; then libname=`eval "\\$ECHO \"$libname_spec\""` for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do potential_libs=`ls $i/$libname[.-]* 2>/dev/null` for potent_lib in $potential_libs; do potlib=$potent_lib # see symlink-check above in file_magic test if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \ $EGREP "$match_pattern_regex" > /dev/null; then func_append newdeplibs " $a_deplib" a_deplib= break 2 fi done done fi if test -n "$a_deplib"; then droppeddeps=yes echo $ECHO "*** Warning: linker path does not have real file for library $a_deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because I did check the linker path looking for a file starting" if test -z "$potlib"; then $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)" else $ECHO "*** with $libname and none of the candidates passed a file format test" $ECHO "*** using a regex pattern. Last file checked: $potlib" fi fi ;; *) # Add a -L argument. func_append newdeplibs " $a_deplib" ;; esac done # Gone through all deplibs. ;; none | unknown | *) newdeplibs= tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'` if test yes = "$allow_libtool_libs_with_static_runtimes"; then for i in $predeps $postdeps; do # can't use Xsed below, because $i might contain '/' tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"` done fi case $tmp_deplibs in *[!\ \ ]*) echo if test none = "$deplibs_check_method"; then echo "*** Warning: inter-library dependencies are not supported in this platform." else echo "*** Warning: inter-library dependencies are not known to be supported." fi echo "*** All declared inter-library dependencies are being dropped." droppeddeps=yes ;; esac ;; esac versuffix=$versuffix_save major=$major_save release=$release_save libname=$libname_save name=$name_save case $host in *-*-rhapsody* | *-*-darwin1.[012]) # On Rhapsody replace the C library with the System framework newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'` ;; esac if test yes = "$droppeddeps"; then if test yes = "$module"; then echo echo "*** Warning: libtool could not satisfy all declared inter-library" $ECHO "*** dependencies of module $libname. Therefore, libtool will create" echo "*** a static module, that should work as long as the dlopening" echo "*** application is linked with the -dlopen flag." if test -z "$global_symbol_pipe"; then echo echo "*** However, this would only work if libtool was able to extract symbol" echo "*** lists from a program, using 'nm' or equivalent, but libtool could" echo "*** not find such a program. So, this module is probably useless." echo "*** 'nm' from GNU binutils and a full rebuild may help." fi if test no = "$build_old_libs"; then oldlibs=$output_objdir/$libname.$libext build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi else echo "*** The inter-library dependencies that have been dropped here will be" echo "*** automatically added whenever a program is linked with this library" echo "*** or is declared to -dlopen it." if test no = "$allow_undefined"; then echo echo "*** Since this library must not contain undefined symbols," echo "*** because either the platform does not support them or" echo "*** it was explicitly requested with -no-undefined," echo "*** libtool will only create a static version of it." if test no = "$build_old_libs"; then oldlibs=$output_objdir/$libname.$libext build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi fi fi fi # Done checking deplibs! deplibs=$newdeplibs fi # Time to change all our "foo.ltframework" stuff back to "-framework foo" case $host in *-*-darwin*) newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` ;; esac # move library search paths that coincide with paths to not yet # installed libraries to the beginning of the library search list new_libs= for path in $notinst_path; do case " $new_libs " in *" -L$path/$objdir "*) ;; *) case " $deplibs " in *" -L$path/$objdir "*) func_append new_libs " -L$path/$objdir" ;; esac ;; esac done for deplib in $deplibs; do case $deplib in -L*) case " $new_libs " in *" $deplib "*) ;; *) func_append new_libs " $deplib" ;; esac ;; *) func_append new_libs " $deplib" ;; esac done deplibs=$new_libs # All the library-specific variables (install_libdir is set above). library_names= old_library= dlname= # Test again, we may have decided not to build it any more if test yes = "$build_libtool_libs"; then # Remove $wl instances when linking with ld. # FIXME: should test the right _cmds variable. case $archive_cmds in *\$LD\ *) wl= ;; esac if test yes = "$hardcode_into_libs"; then # Hardcode the library paths hardcode_libdirs= dep_rpath= rpath=$finalize_rpath test relink = "$opt_mode" || rpath=$compile_rpath$rpath for libdir in $rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then func_replace_sysroot "$libdir" libdir=$func_replace_sysroot_result if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append dep_rpath " $flag" fi elif test -n "$runpath_var"; then case "$perm_rpath " in *" $libdir "*) ;; *) func_append perm_rpath " $libdir" ;; esac fi done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" fi if test -n "$runpath_var" && test -n "$perm_rpath"; then # We should set the runpath_var. rpath= for dir in $perm_rpath; do func_append rpath "$dir:" done eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" fi test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" fi shlibpath=$finalize_shlibpath test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath if test -n "$shlibpath"; then eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" fi # Get the real and link names of the library. eval shared_ext=\"$shrext_cmds\" eval library_names=\"$library_names_spec\" set dummy $library_names shift realname=$1 shift if test -n "$soname_spec"; then eval soname=\"$soname_spec\" else soname=$realname fi if test -z "$dlname"; then dlname=$soname fi lib=$output_objdir/$realname linknames= for link do func_append linknames " $link" done # Use standard objects if they are pic test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` test "X$libobjs" = "X " && libobjs= delfiles= if test -n "$export_symbols" && test -n "$include_expsyms"; then $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" export_symbols=$output_objdir/$libname.uexp func_append delfiles " $export_symbols" fi orig_export_symbols= case $host_os in cygwin* | mingw* | cegcc*) if test -n "$export_symbols" && test -z "$export_symbols_regex"; then # exporting using user supplied symfile func_dll_def_p "$export_symbols" || { # and it's NOT already a .def file. Must figure out # which of the given symbols are data symbols and tag # them as such. So, trigger use of export_symbols_cmds. # export_symbols gets reassigned inside the "prepare # the list of exported symbols" if statement, so the # include_expsyms logic still works. orig_export_symbols=$export_symbols export_symbols= always_export_symbols=yes } fi ;; esac # Prepare the list of exported symbols if test -z "$export_symbols"; then if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then func_verbose "generating symbol list for '$libname.la'" export_symbols=$output_objdir/$libname.exp $opt_dry_run || $RM $export_symbols cmds=$export_symbols_cmds save_ifs=$IFS; IFS='~' for cmd1 in $cmds; do IFS=$save_ifs # Take the normal branch if the nm_file_list_spec branch # doesn't work or if tool conversion is not needed. case $nm_file_list_spec~$to_tool_file_cmd in *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) try_normal_branch=yes eval cmd=\"$cmd1\" func_len " $cmd" len=$func_len_result ;; *) try_normal_branch=no ;; esac if test yes = "$try_normal_branch" \ && { test "$len" -lt "$max_cmd_len" \ || test "$max_cmd_len" -le -1; } then func_show_eval "$cmd" 'exit $?' skipped_export=false elif test -n "$nm_file_list_spec"; then func_basename "$output" output_la=$func_basename_result save_libobjs=$libobjs save_output=$output output=$output_objdir/$output_la.nm func_to_tool_file "$output" libobjs=$nm_file_list_spec$func_to_tool_file_result func_append delfiles " $output" func_verbose "creating $NM input file list: $output" for obj in $save_libobjs; do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" done > "$output" eval cmd=\"$cmd1\" func_show_eval "$cmd" 'exit $?' output=$save_output libobjs=$save_libobjs skipped_export=false else # The command line is too long to execute in one step. func_verbose "using reloadable object file for export list..." skipped_export=: # Break out early, otherwise skipped_export may be # set to false by a later but shorter cmd. break fi done IFS=$save_ifs if test -n "$export_symbols_regex" && test : != "$skipped_export"; then func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' func_show_eval '$MV "${export_symbols}T" "$export_symbols"' fi fi fi if test -n "$export_symbols" && test -n "$include_expsyms"; then tmp_export_symbols=$export_symbols test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' fi if test : != "$skipped_export" && test -n "$orig_export_symbols"; then # The given exports_symbols file has to be filtered, so filter it. func_verbose "filter symbol list for '$libname.la' to tag DATA exports" # FIXME: $output_objdir/$libname.filter potentially contains lots of # 's' commands, which not all seds can handle. GNU sed should be fine # though. Also, the filter scales superlinearly with the number of # global variables. join(1) would be nice here, but unfortunately # isn't a blessed tool. $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter func_append delfiles " $export_symbols $output_objdir/$libname.filter" export_symbols=$output_objdir/$libname.def $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols fi tmp_deplibs= for test_deplib in $deplibs; do case " $convenience " in *" $test_deplib "*) ;; *) func_append tmp_deplibs " $test_deplib" ;; esac done deplibs=$tmp_deplibs if test -n "$convenience"; then if test -n "$whole_archive_flag_spec" && test yes = "$compiler_needs_object" && test -z "$libobjs"; then # extract the archives, so we have objects to list. # TODO: could optimize this to just extract one archive. whole_archive_flag_spec= fi if test -n "$whole_archive_flag_spec"; then save_libobjs=$libobjs eval libobjs=\"\$libobjs $whole_archive_flag_spec\" test "X$libobjs" = "X " && libobjs= else gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $convenience func_append libobjs " $func_extract_archives_result" test "X$libobjs" = "X " && libobjs= fi fi if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then eval flag=\"$thread_safe_flag_spec\" func_append linker_flags " $flag" fi # Make a backup of the uninstalled library when relinking if test relink = "$opt_mode"; then $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? fi # Do each of the archive commands. if test yes = "$module" && test -n "$module_cmds"; then if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then eval test_cmds=\"$module_expsym_cmds\" cmds=$module_expsym_cmds else eval test_cmds=\"$module_cmds\" cmds=$module_cmds fi else if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then eval test_cmds=\"$archive_expsym_cmds\" cmds=$archive_expsym_cmds else eval test_cmds=\"$archive_cmds\" cmds=$archive_cmds fi fi if test : != "$skipped_export" && func_len " $test_cmds" && len=$func_len_result && test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then : else # The command line is too long to link in one step, link piecewise # or, if using GNU ld and skipped_export is not :, use a linker # script. # Save the value of $output and $libobjs because we want to # use them later. If we have whole_archive_flag_spec, we # want to use save_libobjs as it was before # whole_archive_flag_spec was expanded, because we can't # assume the linker understands whole_archive_flag_spec. # This may have to be revisited, in case too many # convenience libraries get linked in and end up exceeding # the spec. if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then save_libobjs=$libobjs fi save_output=$output func_basename "$output" output_la=$func_basename_result # Clear the reloadable object creation command queue and # initialize k to one. test_cmds= concat_cmds= objlist= last_robj= k=1 if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then output=$output_objdir/$output_la.lnkscript func_verbose "creating GNU ld script: $output" echo 'INPUT (' > $output for obj in $save_libobjs do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" >> $output done echo ')' >> $output func_append delfiles " $output" func_to_tool_file "$output" output=$func_to_tool_file_result elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then output=$output_objdir/$output_la.lnk func_verbose "creating linker input file list: $output" : > $output set x $save_libobjs shift firstobj= if test yes = "$compiler_needs_object"; then firstobj="$1 " shift fi for obj do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" >> $output done func_append delfiles " $output" func_to_tool_file "$output" output=$firstobj\"$file_list_spec$func_to_tool_file_result\" else if test -n "$save_libobjs"; then func_verbose "creating reloadable object files..." output=$output_objdir/$output_la-$k.$objext eval test_cmds=\"$reload_cmds\" func_len " $test_cmds" len0=$func_len_result len=$len0 # Loop over the list of objects to be linked. for obj in $save_libobjs do func_len " $obj" func_arith $len + $func_len_result len=$func_arith_result if test -z "$objlist" || test "$len" -lt "$max_cmd_len"; then func_append objlist " $obj" else # The command $test_cmds is almost too long, add a # command to the queue. if test 1 -eq "$k"; then # The first file doesn't have a previous command to add. reload_objs=$objlist eval concat_cmds=\"$reload_cmds\" else # All subsequent reloadable object files will link in # the last one created. reload_objs="$objlist $last_robj" eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" fi last_robj=$output_objdir/$output_la-$k.$objext func_arith $k + 1 k=$func_arith_result output=$output_objdir/$output_la-$k.$objext objlist=" $obj" func_len " $last_robj" func_arith $len0 + $func_len_result len=$func_arith_result fi done # Handle the remaining objects by creating one last # reloadable object file. All subsequent reloadable object # files will link in the last one created. test -z "$concat_cmds" || concat_cmds=$concat_cmds~ reload_objs="$objlist $last_robj" eval concat_cmds=\"\$concat_cmds$reload_cmds\" if test -n "$last_robj"; then eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" fi func_append delfiles " $output" else output= fi ${skipped_export-false} && { func_verbose "generating symbol list for '$libname.la'" export_symbols=$output_objdir/$libname.exp $opt_dry_run || $RM $export_symbols libobjs=$output # Append the command to create the export file. test -z "$concat_cmds" || concat_cmds=$concat_cmds~ eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" if test -n "$last_robj"; then eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" fi } test -n "$save_libobjs" && func_verbose "creating a temporary reloadable object file: $output" # Loop through the commands generated above and execute them. save_ifs=$IFS; IFS='~' for cmd in $concat_cmds; do IFS=$save_ifs $opt_quiet || { func_quote_for_expand "$cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || eval "$cmd" || { lt_exit=$? # Restore the uninstalled library and exit if test relink = "$opt_mode"; then ( cd "$output_objdir" && \ $RM "${realname}T" && \ $MV "${realname}U" "$realname" ) fi exit $lt_exit } done IFS=$save_ifs if test -n "$export_symbols_regex" && ${skipped_export-false}; then func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' func_show_eval '$MV "${export_symbols}T" "$export_symbols"' fi fi ${skipped_export-false} && { if test -n "$export_symbols" && test -n "$include_expsyms"; then tmp_export_symbols=$export_symbols test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' fi if test -n "$orig_export_symbols"; then # The given exports_symbols file has to be filtered, so filter it. func_verbose "filter symbol list for '$libname.la' to tag DATA exports" # FIXME: $output_objdir/$libname.filter potentially contains lots of # 's' commands, which not all seds can handle. GNU sed should be fine # though. Also, the filter scales superlinearly with the number of # global variables. join(1) would be nice here, but unfortunately # isn't a blessed tool. $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter func_append delfiles " $export_symbols $output_objdir/$libname.filter" export_symbols=$output_objdir/$libname.def $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols fi } libobjs=$output # Restore the value of output. output=$save_output if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then eval libobjs=\"\$libobjs $whole_archive_flag_spec\" test "X$libobjs" = "X " && libobjs= fi # Expand the library linking commands again to reset the # value of $libobjs for piecewise linking. # Do each of the archive commands. if test yes = "$module" && test -n "$module_cmds"; then if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then cmds=$module_expsym_cmds else cmds=$module_cmds fi else if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then cmds=$archive_expsym_cmds else cmds=$archive_cmds fi fi fi if test -n "$delfiles"; then # Append the command to remove temporary files to $cmds. eval cmds=\"\$cmds~\$RM $delfiles\" fi # Add any objects from preloaded convenience libraries if test -n "$dlprefiles"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $dlprefiles func_append libobjs " $func_extract_archives_result" test "X$libobjs" = "X " && libobjs= fi save_ifs=$IFS; IFS='~' for cmd in $cmds; do IFS=$sp$nl eval cmd=\"$cmd\" IFS=$save_ifs $opt_quiet || { func_quote_for_expand "$cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || eval "$cmd" || { lt_exit=$? # Restore the uninstalled library and exit if test relink = "$opt_mode"; then ( cd "$output_objdir" && \ $RM "${realname}T" && \ $MV "${realname}U" "$realname" ) fi exit $lt_exit } done IFS=$save_ifs # Restore the uninstalled library and exit if test relink = "$opt_mode"; then $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? if test -n "$convenience"; then if test -z "$whole_archive_flag_spec"; then func_show_eval '${RM}r "$gentop"' fi fi exit $EXIT_SUCCESS fi # Create links to the real library. for linkname in $linknames; do if test "$realname" != "$linkname"; then func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' fi done # If -module or -export-dynamic was specified, set the dlname. if test yes = "$module" || test yes = "$export_dynamic"; then # On all known operating systems, these are identical. dlname=$soname fi fi ;; obj) if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then func_warning "'-dlopen' is ignored for objects" fi case " $deplibs" in *\ -l* | *\ -L*) func_warning "'-l' and '-L' are ignored for objects" ;; esac test -n "$rpath" && \ func_warning "'-rpath' is ignored for objects" test -n "$xrpath" && \ func_warning "'-R' is ignored for objects" test -n "$vinfo" && \ func_warning "'-version-info' is ignored for objects" test -n "$release" && \ func_warning "'-release' is ignored for objects" case $output in *.lo) test -n "$objs$old_deplibs" && \ func_fatal_error "cannot build library object '$output' from non-libtool objects" libobj=$output func_lo2o "$libobj" obj=$func_lo2o_result ;; *) libobj= obj=$output ;; esac # Delete the old objects. $opt_dry_run || $RM $obj $libobj # Objects from convenience libraries. This assumes # single-version convenience libraries. Whenever we create # different ones for PIC/non-PIC, this we'll have to duplicate # the extraction. reload_conv_objs= gentop= # if reload_cmds runs $LD directly, get rid of -Wl from # whole_archive_flag_spec and hope we can get by with turning comma # into space. case $reload_cmds in *\$LD[\ \$]*) wl= ;; esac if test -n "$convenience"; then if test -n "$whole_archive_flag_spec"; then eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags else gentop=$output_objdir/${obj}x func_append generated " $gentop" func_extract_archives $gentop $convenience reload_conv_objs="$reload_objs $func_extract_archives_result" fi fi # If we're not building shared, we need to use non_pic_objs test yes = "$build_libtool_libs" || libobjs=$non_pic_objects # Create the old-style object. reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs output=$obj func_execute_cmds "$reload_cmds" 'exit $?' # Exit if we aren't doing a library object file. if test -z "$libobj"; then if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi exit $EXIT_SUCCESS fi test yes = "$build_libtool_libs" || { if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi # Create an invalid libtool object if no PIC, so that we don't # accidentally link it into a program. # $show "echo timestamp > $libobj" # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? exit $EXIT_SUCCESS } if test -n "$pic_flag" || test default != "$pic_mode"; then # Only do commands if we really have different PIC objects. reload_objs="$libobjs $reload_conv_objs" output=$libobj func_execute_cmds "$reload_cmds" 'exit $?' fi if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi exit $EXIT_SUCCESS ;; prog) case $host in *cygwin*) func_stripname '' '.exe' "$output" output=$func_stripname_result.exe;; esac test -n "$vinfo" && \ func_warning "'-version-info' is ignored for programs" test -n "$release" && \ func_warning "'-release' is ignored for programs" $preload \ && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \ && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support." case $host in *-*-rhapsody* | *-*-darwin1.[012]) # On Rhapsody replace the C library is the System framework compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` ;; esac case $host in *-*-darwin*) # Don't allow lazy linking, it breaks C++ global constructors # But is supposedly fixed on 10.4 or later (yay!). if test CXX = "$tagname"; then case ${MACOSX_DEPLOYMENT_TARGET-10.0} in 10.[0123]) func_append compile_command " $wl-bind_at_load" func_append finalize_command " $wl-bind_at_load" ;; esac fi # Time to change all our "foo.ltframework" stuff back to "-framework foo" compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` ;; esac # move library search paths that coincide with paths to not yet # installed libraries to the beginning of the library search list new_libs= for path in $notinst_path; do case " $new_libs " in *" -L$path/$objdir "*) ;; *) case " $compile_deplibs " in *" -L$path/$objdir "*) func_append new_libs " -L$path/$objdir" ;; esac ;; esac done for deplib in $compile_deplibs; do case $deplib in -L*) case " $new_libs " in *" $deplib "*) ;; *) func_append new_libs " $deplib" ;; esac ;; *) func_append new_libs " $deplib" ;; esac done compile_deplibs=$new_libs func_append compile_command " $compile_deplibs" func_append finalize_command " $finalize_deplibs" if test -n "$rpath$xrpath"; then # If the user specified any rpath flags, then add them. for libdir in $rpath $xrpath; do # This is the magic to use -rpath. case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac done fi # Now hardcode the library paths rpath= hardcode_libdirs= for libdir in $compile_rpath $finalize_rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append rpath " $flag" fi elif test -n "$runpath_var"; then case "$perm_rpath " in *" $libdir "*) ;; *) func_append perm_rpath " $libdir" ;; esac fi case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'` case :$dllsearchpath: in *":$libdir:"*) ;; ::) dllsearchpath=$libdir;; *) func_append dllsearchpath ":$libdir";; esac case :$dllsearchpath: in *":$testbindir:"*) ;; ::) dllsearchpath=$testbindir;; *) func_append dllsearchpath ":$testbindir";; esac ;; esac done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval rpath=\" $hardcode_libdir_flag_spec\" fi compile_rpath=$rpath rpath= hardcode_libdirs= for libdir in $finalize_rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append rpath " $flag" fi elif test -n "$runpath_var"; then case "$finalize_perm_rpath " in *" $libdir "*) ;; *) func_append finalize_perm_rpath " $libdir" ;; esac fi done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval rpath=\" $hardcode_libdir_flag_spec\" fi finalize_rpath=$rpath if test -n "$libobjs" && test yes = "$build_old_libs"; then # Transform all the library objects into standard objects. compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` fi func_generate_dlsyms "$outputname" "@PROGRAM@" false # template prelinking step if test -n "$prelink_cmds"; then func_execute_cmds "$prelink_cmds" 'exit $?' fi wrappers_required=: case $host in *cegcc* | *mingw32ce*) # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. wrappers_required=false ;; *cygwin* | *mingw* ) test yes = "$build_libtool_libs" || wrappers_required=false ;; *) if test no = "$need_relink" || test yes != "$build_libtool_libs"; then wrappers_required=false fi ;; esac $wrappers_required || { # Replace the output file specification. compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` link_command=$compile_command$compile_rpath # We have no uninstalled library dependencies, so finalize right now. exit_status=0 func_show_eval "$link_command" 'exit_status=$?' if test -n "$postlink_cmds"; then func_to_tool_file "$output" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi # Delete the generated files. if test -f "$output_objdir/${outputname}S.$objext"; then func_show_eval '$RM "$output_objdir/${outputname}S.$objext"' fi exit $exit_status } if test -n "$compile_shlibpath$finalize_shlibpath"; then compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" fi if test -n "$finalize_shlibpath"; then finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" fi compile_var= finalize_var= if test -n "$runpath_var"; then if test -n "$perm_rpath"; then # We should set the runpath_var. rpath= for dir in $perm_rpath; do func_append rpath "$dir:" done compile_var="$runpath_var=\"$rpath\$$runpath_var\" " fi if test -n "$finalize_perm_rpath"; then # We should set the runpath_var. rpath= for dir in $finalize_perm_rpath; do func_append rpath "$dir:" done finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " fi fi if test yes = "$no_install"; then # We don't need to create a wrapper script. link_command=$compile_var$compile_command$compile_rpath # Replace the output file specification. link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` # Delete the old output file. $opt_dry_run || $RM $output # Link the executable and exit func_show_eval "$link_command" 'exit $?' if test -n "$postlink_cmds"; then func_to_tool_file "$output" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi exit $EXIT_SUCCESS fi case $hardcode_action,$fast_install in relink,*) # Fast installation is not supported link_command=$compile_var$compile_command$compile_rpath relink_command=$finalize_var$finalize_command$finalize_rpath func_warning "this platform does not like uninstalled shared libraries" func_warning "'$output' will be relinked during installation" ;; *,yes) link_command=$finalize_var$compile_command$finalize_rpath relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` ;; *,no) link_command=$compile_var$compile_command$compile_rpath relink_command=$finalize_var$finalize_command$finalize_rpath ;; *,needless) link_command=$finalize_var$compile_command$finalize_rpath relink_command= ;; esac # Replace the output file specification. link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` # Delete the old output files. $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname func_show_eval "$link_command" 'exit $?' if test -n "$postlink_cmds"; then func_to_tool_file "$output_objdir/$outputname" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi # Now create the wrapper script. func_verbose "creating $output" # Quote the relink command for shipping. if test -n "$relink_command"; then # Preserve any variables that may affect compiler behavior for var in $variables_saved_for_relink; do if eval test -z \"\${$var+set}\"; then relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" elif eval var_value=\$$var; test -z "$var_value"; then relink_command="$var=; export $var; $relink_command" else func_quote_for_eval "$var_value" relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" fi done relink_command="(cd `pwd`; $relink_command)" relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` fi # Only actually do things if not in dry run mode. $opt_dry_run || { # win32 will think the script is a binary if it has # a .exe suffix, so we strip it off here. case $output in *.exe) func_stripname '' '.exe' "$output" output=$func_stripname_result ;; esac # test for cygwin because mv fails w/o .exe extensions case $host in *cygwin*) exeext=.exe func_stripname '' '.exe' "$outputname" outputname=$func_stripname_result ;; *) exeext= ;; esac case $host in *cygwin* | *mingw* ) func_dirname_and_basename "$output" "" "." output_name=$func_basename_result output_path=$func_dirname_result cwrappersource=$output_path/$objdir/lt-$output_name.c cwrapper=$output_path/$output_name.exe $RM $cwrappersource $cwrapper trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 func_emit_cwrapperexe_src > $cwrappersource # The wrapper executable is built using the $host compiler, # because it contains $host paths and files. If cross- # compiling, it, like the target executable, must be # executed on the $host or under an emulation environment. $opt_dry_run || { $LTCC $LTCFLAGS -o $cwrapper $cwrappersource $STRIP $cwrapper } # Now, create the wrapper script for func_source use: func_ltwrapper_scriptname $cwrapper $RM $func_ltwrapper_scriptname_result trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 $opt_dry_run || { # note: this script will not be executed, so do not chmod. if test "x$build" = "x$host"; then $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result else func_emit_wrapper no > $func_ltwrapper_scriptname_result fi } ;; * ) $RM $output trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 func_emit_wrapper no > $output chmod +x $output ;; esac } exit $EXIT_SUCCESS ;; esac # See if we need to build an old-fashioned archive. for oldlib in $oldlibs; do case $build_libtool_libs in convenience) oldobjs="$libobjs_save $symfileobj" addlibs=$convenience build_libtool_libs=no ;; module) oldobjs=$libobjs_save addlibs=$old_convenience build_libtool_libs=no ;; *) oldobjs="$old_deplibs $non_pic_objects" $preload && test -f "$symfileobj" \ && func_append oldobjs " $symfileobj" addlibs=$old_convenience ;; esac if test -n "$addlibs"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $addlibs func_append oldobjs " $func_extract_archives_result" fi # Do each command in the archive commands. if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then cmds=$old_archive_from_new_cmds else # Add any objects from preloaded convenience libraries if test -n "$dlprefiles"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $dlprefiles func_append oldobjs " $func_extract_archives_result" fi # POSIX demands no paths to be encoded in archives. We have # to avoid creating archives with duplicate basenames if we # might have to extract them afterwards, e.g., when creating a # static archive out of a convenience library, or when linking # the entirety of a libtool archive into another (currently # not supported by libtool). if (for obj in $oldobjs do func_basename "$obj" $ECHO "$func_basename_result" done | sort | sort -uc >/dev/null 2>&1); then : else echo "copying selected object files to avoid basename conflicts..." gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_mkdir_p "$gentop" save_oldobjs=$oldobjs oldobjs= counter=1 for obj in $save_oldobjs do func_basename "$obj" objbase=$func_basename_result case " $oldobjs " in " ") oldobjs=$obj ;; *[\ /]"$objbase "*) while :; do # Make sure we don't pick an alternate name that also # overlaps. newobj=lt$counter-$objbase func_arith $counter + 1 counter=$func_arith_result case " $oldobjs " in *[\ /]"$newobj "*) ;; *) if test ! -f "$gentop/$newobj"; then break; fi ;; esac done func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj" func_append oldobjs " $gentop/$newobj" ;; *) func_append oldobjs " $obj" ;; esac done fi func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 tool_oldlib=$func_to_tool_file_result eval cmds=\"$old_archive_cmds\" func_len " $cmds" len=$func_len_result if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then cmds=$old_archive_cmds elif test -n "$archiver_list_spec"; then func_verbose "using command file archive linking..." for obj in $oldobjs do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" done > $output_objdir/$libname.libcmd func_to_tool_file "$output_objdir/$libname.libcmd" oldobjs=" $archiver_list_spec$func_to_tool_file_result" cmds=$old_archive_cmds else # the command line is too long to link in one step, link in parts func_verbose "using piecewise archive linking..." save_RANLIB=$RANLIB RANLIB=: objlist= concat_cmds= save_oldobjs=$oldobjs oldobjs= # Is there a better way of finding the last object in the list? for obj in $save_oldobjs do last_oldobj=$obj done eval test_cmds=\"$old_archive_cmds\" func_len " $test_cmds" len0=$func_len_result len=$len0 for obj in $save_oldobjs do func_len " $obj" func_arith $len + $func_len_result len=$func_arith_result func_append objlist " $obj" if test "$len" -lt "$max_cmd_len"; then : else # the above command should be used before it gets too long oldobjs=$objlist if test "$obj" = "$last_oldobj"; then RANLIB=$save_RANLIB fi test -z "$concat_cmds" || concat_cmds=$concat_cmds~ eval concat_cmds=\"\$concat_cmds$old_archive_cmds\" objlist= len=$len0 fi done RANLIB=$save_RANLIB oldobjs=$objlist if test -z "$oldobjs"; then eval cmds=\"\$concat_cmds\" else eval cmds=\"\$concat_cmds~\$old_archive_cmds\" fi fi fi func_execute_cmds "$cmds" 'exit $?' done test -n "$generated" && \ func_show_eval "${RM}r$generated" # Now create the libtool archive. case $output in *.la) old_library= test yes = "$build_old_libs" && old_library=$libname.$libext func_verbose "creating $output" # Preserve any variables that may affect compiler behavior for var in $variables_saved_for_relink; do if eval test -z \"\${$var+set}\"; then relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" elif eval var_value=\$$var; test -z "$var_value"; then relink_command="$var=; export $var; $relink_command" else func_quote_for_eval "$var_value" relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" fi done # Quote the link command for shipping. relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)" relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` if test yes = "$hardcode_automatic"; then relink_command= fi # Only create the output if not a dry run. $opt_dry_run || { for installed in no yes; do if test yes = "$installed"; then if test -z "$install_libdir"; then break fi output=$output_objdir/${outputname}i # Replace all uninstalled libtool libraries with the installed ones newdependency_libs= for deplib in $dependency_libs; do case $deplib in *.la) func_basename "$deplib" name=$func_basename_result func_resolve_sysroot "$deplib" eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result` test -z "$libdir" && \ func_fatal_error "'$deplib' is not a valid libtool archive" func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name" ;; -L*) func_stripname -L '' "$deplib" func_replace_sysroot "$func_stripname_result" func_append newdependency_libs " -L$func_replace_sysroot_result" ;; -R*) func_stripname -R '' "$deplib" func_replace_sysroot "$func_stripname_result" func_append newdependency_libs " -R$func_replace_sysroot_result" ;; *) func_append newdependency_libs " $deplib" ;; esac done dependency_libs=$newdependency_libs newdlfiles= for lib in $dlfiles; do case $lib in *.la) func_basename "$lib" name=$func_basename_result eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` test -z "$libdir" && \ func_fatal_error "'$lib' is not a valid libtool archive" func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name" ;; *) func_append newdlfiles " $lib" ;; esac done dlfiles=$newdlfiles newdlprefiles= for lib in $dlprefiles; do case $lib in *.la) # Only pass preopened files to the pseudo-archive (for # eventual linking with the app. that links it) if we # didn't already link the preopened objects directly into # the library: func_basename "$lib" name=$func_basename_result eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` test -z "$libdir" && \ func_fatal_error "'$lib' is not a valid libtool archive" func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name" ;; esac done dlprefiles=$newdlprefiles else newdlfiles= for lib in $dlfiles; do case $lib in [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; *) abs=`pwd`"/$lib" ;; esac func_append newdlfiles " $abs" done dlfiles=$newdlfiles newdlprefiles= for lib in $dlprefiles; do case $lib in [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; *) abs=`pwd`"/$lib" ;; esac func_append newdlprefiles " $abs" done dlprefiles=$newdlprefiles fi $RM $output # place dlname in correct position for cygwin # In fact, it would be nice if we could use this code for all target # systems that can't hard-code library paths into their executables # and that have no shared library path variable independent of PATH, # but it turns out we can't easily determine that from inspecting # libtool variables, so we have to hard-code the OSs to which it # applies here; at the moment, that means platforms that use the PE # object format with DLL files. See the long comment at the top of # tests/bindir.at for full details. tdlname=$dlname case $host,$output,$installed,$module,$dlname in *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) # If a -bindir argument was supplied, place the dll there. if test -n "$bindir"; then func_relative_path "$install_libdir" "$bindir" tdlname=$func_relative_path_result/$dlname else # Otherwise fall back on heuristic. tdlname=../bin/$dlname fi ;; esac $ECHO > $output "\ # $outputname - a libtool library file # Generated by $PROGRAM (GNU $PACKAGE) $VERSION # # Please DO NOT delete this file! # It is necessary for linking the library. # The name that we can dlopen(3). dlname='$tdlname' # Names of this library. library_names='$library_names' # The name of the static archive. old_library='$old_library' # Linker flags that cannot go in dependency_libs. inherited_linker_flags='$new_inherited_linker_flags' # Libraries that this one depends upon. dependency_libs='$dependency_libs' # Names of additional weak libraries provided by this library weak_library_names='$weak_libs' # Version information for $libname. current=$current age=$age revision=$revision # Is this an already installed library? 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Likely further. if test -x /sbin/sysctl; then lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` elif test -x /usr/sbin/sysctl; then lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` else lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs fi # And add a safety zone lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` ;; interix*) # We know the value 262144 and hardcode it with a safety zone (like BSD) lt_cv_sys_max_cmd_len=196608 ;; os2*) # The test takes a long time on OS/2. lt_cv_sys_max_cmd_len=8192 ;; osf*) # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test X`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test 17 != "$i" # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. It appears as though 1/2 is a usable value. lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` fi ;; esac fi if test -n "$lt_cv_sys_max_cmd_len"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 $as_echo "$lt_cv_sys_max_cmd_len" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 $as_echo "none" >&6; } fi max_cmd_len=$lt_cv_sys_max_cmd_len : ${CP="cp -f"} : ${MV="mv -f"} : ${RM="rm -f"} if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then lt_unset=unset else lt_unset=false fi # test EBCDIC or ASCII case `echo X|tr X '\101'` in A) # ASCII based system # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr lt_SP2NL='tr \040 \012' lt_NL2SP='tr \015\012 \040\040' ;; *) # EBCDIC based system lt_SP2NL='tr \100 \n' lt_NL2SP='tr \r\n \100\100' ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 $as_echo_n "checking how to convert $build file names to $host format... 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" >&6; } if ${lt_cv_to_tool_file_cmd+:} false; then : $as_echo_n "(cached) " >&6 else #assume ordinary cross tools, or native build. lt_cv_to_tool_file_cmd=func_convert_file_noop case $host in *-*-mingw* ) case $build in *-*-mingw* ) # actually msys lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 ;; esac ;; esac fi to_tool_file_cmd=$lt_cv_to_tool_file_cmd { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5 $as_echo "$lt_cv_to_tool_file_cmd" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5 $as_echo_n "checking for $LD option to reload object files... " >&6; } if ${lt_cv_ld_reload_flag+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_reload_flag='-r' fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 $as_echo "$lt_cv_ld_reload_flag" >&6; } reload_flag=$lt_cv_ld_reload_flag case $reload_flag in "" | " "*) ;; *) reload_flag=" $reload_flag" ;; esac reload_cmds='$LD$reload_flag -o $output$reload_objs' case $host_os in cygwin* | mingw* | pw32* | cegcc*) if test yes != "$GCC"; then reload_cmds=false fi ;; darwin*) if test yes = "$GCC"; then reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' else reload_cmds='$LD$reload_flag -o $output$reload_objs' fi ;; esac if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. set dummy ${ac_tool_prefix}objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OBJDUMP"; then ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OBJDUMP=$ac_cv_prog_OBJDUMP if test -n "$OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 $as_echo "$OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OBJDUMP"; then ac_ct_OBJDUMP=$OBJDUMP # Extract the first word of "objdump", so it can be a program name with args. set dummy objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OBJDUMP"; then ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OBJDUMP="objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP if test -n "$ac_ct_OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 $as_echo "$ac_ct_OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OBJDUMP" = x; then OBJDUMP="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OBJDUMP=$ac_ct_OBJDUMP fi else OBJDUMP="$ac_cv_prog_OBJDUMP" fi test -z "$OBJDUMP" && OBJDUMP=objdump { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 $as_echo_n "checking how to recognize dependent libraries... " >&6; } if ${lt_cv_deplibs_check_method+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_file_magic_cmd='$MAGIC_CMD' lt_cv_file_magic_test_file= lt_cv_deplibs_check_method='unknown' # Need to set the preceding variable on all platforms that support # interlibrary dependencies. # 'none' -- dependencies not supported. # 'unknown' -- same as none, but documents that we really don't know. # 'pass_all' -- all dependencies passed with no checks. # 'test_compile' -- check by making test program. # 'file_magic [[regex]]' -- check by looking for files in library path # that responds to the $file_magic_cmd with a given extended regex. # If you have 'file' or equivalent on your system and you're not sure # whether 'pass_all' will *always* work, you probably want this one. case $host_os in aix[4-9]*) lt_cv_deplibs_check_method=pass_all ;; beos*) lt_cv_deplibs_check_method=pass_all ;; bsdi[45]*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' lt_cv_file_magic_cmd='/usr/bin/file -L' lt_cv_file_magic_test_file=/shlib/libc.so ;; cygwin*) # func_win32_libid is a shell function defined in ltmain.sh lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' ;; mingw* | pw32*) # Base MSYS/MinGW do not provide the 'file' command needed by # func_win32_libid shell function, so use a weaker test based on 'objdump', # unless we find 'file', for example because we are cross-compiling. if ( file / ) >/dev/null 2>&1; then lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' else # Keep this pattern in sync with the one in func_win32_libid. lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' lt_cv_file_magic_cmd='$OBJDUMP -f' fi ;; cegcc*) # use the weaker test based on 'objdump'. See mingw*. lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' lt_cv_file_magic_cmd='$OBJDUMP -f' ;; darwin* | rhapsody*) lt_cv_deplibs_check_method=pass_all ;; freebsd* | dragonfly*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then case $host_cpu in i*86 ) # Not sure whether the presence of OpenBSD here was a mistake. # Let's accept both of them until this is cleared up. lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` ;; esac else lt_cv_deplibs_check_method=pass_all fi ;; haiku*) lt_cv_deplibs_check_method=pass_all ;; hpux10.20* | hpux11*) lt_cv_file_magic_cmd=/usr/bin/file case $host_cpu in ia64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so ;; hppa*64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl ;; *) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' lt_cv_file_magic_test_file=/usr/lib/libc.sl ;; esac ;; interix[3-9]*) # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' ;; irix5* | irix6* | nonstopux*) case $LD in *-32|*"-32 ") libmagic=32-bit;; *-n32|*"-n32 ") libmagic=N32;; *-64|*"-64 ") libmagic=64-bit;; *) libmagic=never-match;; esac lt_cv_deplibs_check_method=pass_all ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) lt_cv_deplibs_check_method=pass_all ;; netbsd* | netbsdelf*-gnu) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' fi ;; newos6*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=/usr/lib/libnls.so ;; *nto* | *qnx*) lt_cv_deplibs_check_method=pass_all ;; openbsd* | bitrig*) if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' fi ;; osf3* | osf4* | osf5*) lt_cv_deplibs_check_method=pass_all ;; rdos*) lt_cv_deplibs_check_method=pass_all ;; solaris*) lt_cv_deplibs_check_method=pass_all ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) lt_cv_deplibs_check_method=pass_all ;; sysv4 | sysv4.3*) case $host_vendor in motorola) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` ;; ncr) lt_cv_deplibs_check_method=pass_all ;; sequent) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;; sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; os2*) lt_cv_deplibs_check_method=pass_all ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 $as_echo "$lt_cv_deplibs_check_method" >&6; } file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. set dummy ${ac_tool_prefix}dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DLLTOOL"; then ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DLLTOOL=$ac_cv_prog_DLLTOOL if test -n "$DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 $as_echo "$DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DLLTOOL"; then ac_ct_DLLTOOL=$DLLTOOL # Extract the first word of "dlltool", so it can be a program name with args. set dummy dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DLLTOOL"; then ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DLLTOOL="dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL if test -n "$ac_ct_DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 $as_echo "$ac_ct_DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DLLTOOL" = x; then DLLTOOL="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DLLTOOL=$ac_ct_DLLTOOL fi else DLLTOOL="$ac_cv_prog_DLLTOOL" fi test -z "$DLLTOOL" && DLLTOOL=dlltool { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 $as_echo_n "checking how to associate runtime and link libraries... " >&6; } if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh; # decide which one to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd=$ECHO ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 $as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO if test -n "$ac_tool_prefix"; then for ac_prog in ar do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$AR"; then ac_cv_prog_AR="$AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_AR="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi AR=$ac_cv_prog_AR if test -n "$AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 $as_echo "$AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$AR" && break done fi if test -z "$AR"; then ac_ct_AR=$AR for ac_prog in ar do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_AR"; then ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_AR="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_AR=$ac_cv_prog_ac_ct_AR if test -n "$ac_ct_AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 $as_echo "$ac_ct_AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_AR" && break done if test "x$ac_ct_AR" = x; then AR="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac AR=$ac_ct_AR fi fi : ${AR=ar} : ${AR_FLAGS=cru} { $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 $as_echo_n "checking for archiver @FILE support... " >&6; } if ${lt_cv_ar_at_file+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ar_at_file=no cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : echo conftest.$ac_objext > conftest.lst lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -eq "$ac_status"; then # Ensure the archiver fails upon bogus file names. rm -f conftest.$ac_objext libconftest.a { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -ne "$ac_status"; then lt_cv_ar_at_file=@ fi fi rm -f conftest.* libconftest.a fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 $as_echo "$lt_cv_ar_at_file" >&6; } if test no = "$lt_cv_ar_at_file"; then archiver_list_spec= else archiver_list_spec=$lt_cv_ar_at_file fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. set dummy ${ac_tool_prefix}strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$STRIP"; then ac_cv_prog_STRIP="$STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_STRIP="${ac_tool_prefix}strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi STRIP=$ac_cv_prog_STRIP if test -n "$STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 $as_echo "$STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_STRIP"; then ac_ct_STRIP=$STRIP # Extract the first word of "strip", so it can be a program name with args. set dummy strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_STRIP"; then ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_STRIP="strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP if test -n "$ac_ct_STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 $as_echo "$ac_ct_STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_STRIP" = x; then STRIP=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac STRIP=$ac_ct_STRIP fi else STRIP="$ac_cv_prog_STRIP" fi test -z "$STRIP" && STRIP=: if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. set dummy ${ac_tool_prefix}ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi RANLIB=$ac_cv_prog_RANLIB if test -n "$RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 $as_echo "$RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_RANLIB"; then ac_ct_RANLIB=$RANLIB # Extract the first word of "ranlib", so it can be a program name with args. set dummy ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_RANLIB"; then ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_RANLIB="ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB if test -n "$ac_ct_RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 $as_echo "$ac_ct_RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_RANLIB" = x; then RANLIB=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac RANLIB=$ac_ct_RANLIB fi else RANLIB="$ac_cv_prog_RANLIB" fi test -z "$RANLIB" && RANLIB=: # Determine commands to create old-style static archives. old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' old_postinstall_cmds='chmod 644 $oldlib' old_postuninstall_cmds= if test -n "$RANLIB"; then case $host_os in bitrig* | openbsd*) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" ;; *) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" ;; esac old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" fi case $host_os in darwin*) lock_old_archive_extraction=yes ;; *) lock_old_archive_extraction=no ;; esac # If no C compiler was specified, use CC. LTCC=${LTCC-"$CC"} # If no C compiler flags were specified, use CFLAGS. LTCFLAGS=${LTCFLAGS-"$CFLAGS"} # Allow CC to be a program name with arguments. compiler=$CC # Check for command to grab the raw symbol name followed by C symbol from nm. { $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 $as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } if ${lt_cv_sys_global_symbol_pipe+:} false; then : $as_echo_n "(cached) " >&6 else # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[BCDEGRST]' # Regexp to match symbols that can be accessed directly from C. sympat='\([_A-Za-z][_A-Za-z0-9]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[BCDT]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[ABCDGISTW]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[ABCDEGRST]' fi ;; irix* | nonstopux*) symcode='[BCDEGRST]' ;; osf*) symcode='[BCDEGQRST]' ;; solaris*) symcode='[BDRT]' ;; sco3.2v5*) symcode='[DT]' ;; sysv4.2uw2*) symcode='[DT]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[ABDT]' ;; sysv4) symcode='[DFNSTU]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[ABCDGIRSTW]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK '"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then # Now try to grab the symbols. nlist=conftest.nm if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 (eval $ac_link) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&5 fi else echo "cannot find nm_test_var in $nlist" >&5 fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 fi else echo "$progname: failed program was:" >&5 cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done fi if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 $as_echo "failed" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 $as_echo "ok" >&6; } fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then nm_file_list_spec='@' fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 $as_echo_n "checking for sysroot... " >&6; } # Check whether --with-sysroot was given. if test "${with_sysroot+set}" = set; then : withval=$with_sysroot; else with_sysroot=no fi lt_sysroot= case $with_sysroot in #( yes) if test yes = "$GCC"; then lt_sysroot=`$CC --print-sysroot 2>/dev/null` fi ;; #( /*) lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` ;; #( no|'') ;; #( *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5 $as_echo "$with_sysroot" >&6; } as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 $as_echo "${lt_sysroot:-no}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5 $as_echo_n "checking for a working dd... " >&6; } if ${ac_cv_path_lt_DD+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i : ${lt_DD:=$DD} if test -z "$lt_DD"; then ac_path_lt_DD_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in dd; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext" as_fn_executable_p "$ac_path_lt_DD" || continue if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: fi $ac_path_lt_DD_found && break 3 done done done IFS=$as_save_IFS if test -z "$ac_cv_path_lt_DD"; then : fi else ac_cv_path_lt_DD=$lt_DD fi rm -f conftest.i conftest2.i conftest.out fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5 $as_echo "$ac_cv_path_lt_DD" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5 $as_echo_n "checking how to truncate binary pipes... " >&6; } if ${lt_cv_truncate_bin+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i lt_cv_truncate_bin= if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" fi rm -f conftest.i conftest2.i conftest.out test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5 $as_echo "$lt_cv_truncate_bin" >&6; } # Calculate cc_basename. Skip known compiler wrappers and cross-prefix. func_cc_basename () { for cc_temp in $*""; do case $cc_temp in compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; \-*) ;; *) break;; esac done func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` } # Check whether --enable-libtool-lock was given. if test "${enable_libtool_lock+set}" = set; then : enableval=$enable_libtool_lock; fi test no = "$enable_libtool_lock" || enable_libtool_lock=yes # Some flags need to be propagated to the compiler or linker for good # libtool support. case $host in ia64-*-hpux*) # Find out what ABI is being produced by ac_compile, and set mode # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.$ac_objext` in *ELF-32*) HPUX_IA64_MODE=32 ;; *ELF-64*) HPUX_IA64_MODE=64 ;; esac fi rm -rf conftest* ;; *-*-irix6*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then if test yes = "$lt_cv_prog_gnu_ld"; then case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -melf32bsmip" ;; *N32*) LD="${LD-ld} -melf32bmipn32" ;; *64-bit*) LD="${LD-ld} -melf64bmip" ;; esac else case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -32" ;; *N32*) LD="${LD-ld} -n32" ;; *64-bit*) LD="${LD-ld} -64" ;; esac fi fi rm -rf conftest* ;; mips64*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then emul=elf case `/usr/bin/file conftest.$ac_objext` in *32-bit*) emul="${emul}32" ;; *64-bit*) emul="${emul}64" ;; esac case `/usr/bin/file conftest.$ac_objext` in *MSB*) emul="${emul}btsmip" ;; *LSB*) emul="${emul}ltsmip" ;; esac case `/usr/bin/file conftest.$ac_objext` in *N32*) emul="${emul}n32" ;; esac LD="${LD-ld} -m $emul" fi rm -rf conftest* ;; x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ s390*-*linux*|s390*-*tpf*|sparc*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. Note that the listed cases only cover the # situations where additional linker options are needed (such as when # doing 32-bit compilation for a host where ld defaults to 64-bit, or # vice versa); the common cases where no linker options are needed do # not appear in the list. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *32-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_i386_fbsd" ;; x86_64-*linux*) case `/usr/bin/file conftest.o` in *x86-64*) LD="${LD-ld} -m elf32_x86_64" ;; *) LD="${LD-ld} -m elf_i386" ;; esac ;; powerpc64le-*linux*) LD="${LD-ld} -m elf32lppclinux" ;; powerpc64-*linux*) LD="${LD-ld} -m elf32ppclinux" ;; s390x-*linux*) LD="${LD-ld} -m elf_s390" ;; sparc64-*linux*) LD="${LD-ld} -m elf32_sparc" ;; esac ;; *64-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_x86_64_fbsd" ;; x86_64-*linux*) LD="${LD-ld} -m elf_x86_64" ;; powerpcle-*linux*) LD="${LD-ld} -m elf64lppc" ;; powerpc-*linux*) LD="${LD-ld} -m elf64ppc" ;; s390*-*linux*|s390*-*tpf*) LD="${LD-ld} -m elf64_s390" ;; sparc*-*linux*) LD="${LD-ld} -m elf64_sparc" ;; esac ;; esac fi rm -rf conftest* ;; *-*-sco3.2v5*) # On SCO OpenServer 5, we need -belf to get full-featured binaries. SAVE_CFLAGS=$CFLAGS CFLAGS="$CFLAGS -belf" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 $as_echo_n "checking whether the C compiler needs -belf... " >&6; } if ${lt_cv_cc_needs_belf+:} false; then : $as_echo_n "(cached) " >&6 else ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_cc_needs_belf=yes else lt_cv_cc_needs_belf=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 $as_echo "$lt_cv_cc_needs_belf" >&6; } if test yes != "$lt_cv_cc_needs_belf"; then # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf CFLAGS=$SAVE_CFLAGS fi ;; *-*solaris*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *64-bit*) case $lt_cv_prog_gnu_ld in yes*) case $host in i?86-*-solaris*|x86_64-*-solaris*) LD="${LD-ld} -m elf_x86_64" ;; sparc*-*-solaris*) LD="${LD-ld} -m elf64_sparc" ;; esac # GNU ld 2.21 introduced _sol2 emulations. Use them if available. if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then LD=${LD-ld}_sol2 fi ;; *) if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then LD="${LD-ld} -64" fi ;; esac ;; esac fi rm -rf conftest* ;; esac need_locks=$enable_libtool_lock if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. set dummy ${ac_tool_prefix}mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$MANIFEST_TOOL"; then ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL if test -n "$MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 $as_echo "$MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_MANIFEST_TOOL"; then ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL # Extract the first word of "mt", so it can be a program name with args. set dummy mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_MANIFEST_TOOL"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL if test -n "$ac_ct_MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 $as_echo "$ac_ct_MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_MANIFEST_TOOL" = x; then MANIFEST_TOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL fi else MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" fi test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 $as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } if ${lt_cv_path_mainfest_tool+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&5 if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 $as_echo "$lt_cv_path_mainfest_tool" >&6; } if test yes != "$lt_cv_path_mainfest_tool"; then MANIFEST_TOOL=: fi case $host_os in rhapsody* | darwin*) if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DSYMUTIL"; then ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DSYMUTIL=$ac_cv_prog_DSYMUTIL if test -n "$DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 $as_echo "$DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DSYMUTIL"; then ac_ct_DSYMUTIL=$DSYMUTIL # Extract the first word of "dsymutil", so it can be a program name with args. set dummy dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DSYMUTIL"; then ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL if test -n "$ac_ct_DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 $as_echo "$ac_ct_DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DSYMUTIL" = x; then DSYMUTIL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DSYMUTIL=$ac_ct_DSYMUTIL fi else DSYMUTIL="$ac_cv_prog_DSYMUTIL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. set dummy ${ac_tool_prefix}nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NMEDIT"; then ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi NMEDIT=$ac_cv_prog_NMEDIT if test -n "$NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 $as_echo "$NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_NMEDIT"; then ac_ct_NMEDIT=$NMEDIT # Extract the first word of "nmedit", so it can be a program name with args. set dummy nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_NMEDIT"; then ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_NMEDIT="nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT if test -n "$ac_ct_NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 $as_echo "$ac_ct_NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_NMEDIT" = x; then NMEDIT=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac NMEDIT=$ac_ct_NMEDIT fi else NMEDIT="$ac_cv_prog_NMEDIT" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. set dummy ${ac_tool_prefix}lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$LIPO"; then ac_cv_prog_LIPO="$LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_LIPO="${ac_tool_prefix}lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi LIPO=$ac_cv_prog_LIPO if test -n "$LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 $as_echo "$LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_LIPO"; then ac_ct_LIPO=$LIPO # Extract the first word of "lipo", so it can be a program name with args. set dummy lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_LIPO"; then ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_LIPO="lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO if test -n "$ac_ct_LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 $as_echo "$ac_ct_LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_LIPO" = x; then LIPO=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac LIPO=$ac_ct_LIPO fi else LIPO="$ac_cv_prog_LIPO" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. set dummy ${ac_tool_prefix}otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL"; then ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL="${ac_tool_prefix}otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL=$ac_cv_prog_OTOOL if test -n "$OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 $as_echo "$OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL"; then ac_ct_OTOOL=$OTOOL # Extract the first word of "otool", so it can be a program name with args. set dummy otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL"; then ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL="otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL if test -n "$ac_ct_OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 $as_echo "$ac_ct_OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL" = x; then OTOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL=$ac_ct_OTOOL fi else OTOOL="$ac_cv_prog_OTOOL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. set dummy ${ac_tool_prefix}otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL64"; then ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL64=$ac_cv_prog_OTOOL64 if test -n "$OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 $as_echo "$OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL64"; then ac_ct_OTOOL64=$OTOOL64 # Extract the first word of "otool64", so it can be a program name with args. set dummy otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL64"; then ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL64="otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 if test -n "$ac_ct_OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 $as_echo "$ac_ct_OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL64" = x; then OTOOL64=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL64=$ac_ct_OTOOL64 fi else OTOOL64="$ac_cv_prog_OTOOL64" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 $as_echo_n "checking for -single_module linker flag... " >&6; } if ${lt_cv_apple_cc_single_mod+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_apple_cc_single_mod=no if test -z "$LT_MULTI_MODULE"; then # By default we will add the -single_module flag. You can override # by either setting the environment variable LT_MULTI_MODULE # non-empty at configure time, or by adding -multi_module to the # link flags. rm -rf libconftest.dylib* echo "int foo(void){return 1;}" > conftest.c echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ -dynamiclib -Wl,-single_module conftest.c" >&5 $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ -dynamiclib -Wl,-single_module conftest.c 2>conftest.err _lt_result=$? # If there is a non-empty error log, and "single_module" # appears in it, assume the flag caused a linker warning if test -s conftest.err && $GREP single_module conftest.err; then cat conftest.err >&5 # Otherwise, if the output was created with a 0 exit code from # the compiler, it worked. elif test -f libconftest.dylib && test 0 = "$_lt_result"; then lt_cv_apple_cc_single_mod=yes else cat conftest.err >&5 fi rm -rf libconftest.dylib* rm -f conftest.* fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 $as_echo "$lt_cv_apple_cc_single_mod" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 $as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } if ${lt_cv_ld_exported_symbols_list+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_exported_symbols_list=no save_LDFLAGS=$LDFLAGS echo "_main" > conftest.sym LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_ld_exported_symbols_list=yes else lt_cv_ld_exported_symbols_list=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS=$save_LDFLAGS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 $as_echo "$lt_cv_ld_exported_symbols_list" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 $as_echo_n "checking for -force_load linker flag... " >&6; } if ${lt_cv_ld_force_load+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_force_load=no cat > conftest.c << _LT_EOF int forced_loaded() { return 2;} _LT_EOF echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 echo "$AR cru libconftest.a conftest.o" >&5 $AR cru libconftest.a conftest.o 2>&5 echo "$RANLIB libconftest.a" >&5 $RANLIB libconftest.a 2>&5 cat > conftest.c << _LT_EOF int main() { return 0;} _LT_EOF echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err _lt_result=$? if test -s conftest.err && $GREP force_load conftest.err; then cat conftest.err >&5 elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then lt_cv_ld_force_load=yes else cat conftest.err >&5 fi rm -f conftest.err libconftest.a conftest conftest.c rm -rf conftest.dSYM fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 $as_echo "$lt_cv_ld_force_load" >&6; } case $host_os in rhapsody* | darwin1.[012]) _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; darwin1.*) _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; darwin*) # darwin 5.x on # if running on 10.5 or later, the deployment target defaults # to the OS version, if on x86, and 10.4, the deployment # target defaults to 10.4. Don't you love it? case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in 10.0,*86*-darwin8*|10.0,*-darwin[91]*) _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; 10.[012][,.]*) _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; 10.*) _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; esac ;; esac if test yes = "$lt_cv_apple_cc_single_mod"; then _lt_dar_single_mod='$single_module' fi if test yes = "$lt_cv_ld_exported_symbols_list"; then _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym' else _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib' fi if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then _lt_dsymutil='~$DSYMUTIL $lib || :' else _lt_dsymutil= fi ;; esac # func_munge_path_list VARIABLE PATH # ----------------------------------- # VARIABLE is name of variable containing _space_ separated list of # directories to be munged by the contents of PATH, which is string # having a format: # "DIR[:DIR]:" # string "DIR[ DIR]" will be prepended to VARIABLE # ":DIR[:DIR]" # string "DIR[ DIR]" will be appended to VARIABLE # "DIRP[:DIRP]::[DIRA:]DIRA" # string "DIRP[ DIRP]" will be prepended to VARIABLE and string # "DIRA[ DIRA]" will be appended to VARIABLE # "DIR[:DIR]" # VARIABLE will be replaced by "DIR[ DIR]" func_munge_path_list () { case x$2 in x) ;; *:) eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\" ;; x:*) eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\" ;; *::*) eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\" ;; *) eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\" ;; esac } for ac_header in dlfcn.h do : ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default " if test "x$ac_cv_header_dlfcn_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_DLFCN_H 1 _ACEOF fi done # Set options enable_dlopen=no enable_win32_dll=no # Check whether --enable-shared was given. if test "${enable_shared+set}" = set; then : enableval=$enable_shared; p=${PACKAGE-default} case $enableval in yes) enable_shared=yes ;; no) enable_shared=no ;; *) enable_shared=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_shared=yes fi done IFS=$lt_save_ifs ;; esac else enable_shared=yes fi # Check whether --enable-static was given. if test "${enable_static+set}" = set; then : enableval=$enable_static; p=${PACKAGE-default} case $enableval in yes) enable_static=yes ;; no) enable_static=no ;; *) enable_static=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_static=yes fi done IFS=$lt_save_ifs ;; esac else enable_static=yes fi # Check whether --with-pic was given. if test "${with_pic+set}" = set; then : withval=$with_pic; lt_p=${PACKAGE-default} case $withval in yes|no) pic_mode=$withval ;; *) pic_mode=default # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for lt_pkg in $withval; do IFS=$lt_save_ifs if test "X$lt_pkg" = "X$lt_p"; then pic_mode=yes fi done IFS=$lt_save_ifs ;; esac else pic_mode=default fi # Check whether --enable-fast-install was given. if test "${enable_fast_install+set}" = set; then : enableval=$enable_fast_install; p=${PACKAGE-default} case $enableval in yes) enable_fast_install=yes ;; no) enable_fast_install=no ;; *) enable_fast_install=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_fast_install=yes fi done IFS=$lt_save_ifs ;; esac else enable_fast_install=yes fi shared_archive_member_spec= case $host,$enable_shared in power*-*-aix[5-9]*,yes) { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5 $as_echo_n "checking which variant of shared library versioning to provide... " >&6; } # Check whether --with-aix-soname was given. if test "${with_aix_soname+set}" = set; then : withval=$with_aix_soname; case $withval in aix|svr4|both) ;; *) as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5 ;; esac lt_cv_with_aix_soname=$with_aix_soname else if ${lt_cv_with_aix_soname+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_with_aix_soname=aix fi with_aix_soname=$lt_cv_with_aix_soname fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5 $as_echo "$with_aix_soname" >&6; } if test aix != "$with_aix_soname"; then # For the AIX way of multilib, we name the shared archive member # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, # the AIX toolchain works better with OBJECT_MODE set (default 32). if test 64 = "${OBJECT_MODE-32}"; then shared_archive_member_spec=shr_64 else shared_archive_member_spec=shr fi fi ;; *) with_aix_soname=aix ;; esac # This can be used to rebuild libtool when needed LIBTOOL_DEPS=$ltmain # Always use our own libtool. LIBTOOL='$(SHELL) $(top_builddir)/libtool' test -z "$LN_S" && LN_S="ln -s" if test -n "${ZSH_VERSION+set}"; then setopt NO_GLOB_SUBST fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5 $as_echo_n "checking for objdir... " >&6; } if ${lt_cv_objdir+:} false; then : $as_echo_n "(cached) " >&6 else rm -f .libs 2>/dev/null mkdir .libs 2>/dev/null if test -d .libs; then lt_cv_objdir=.libs else # MS-DOS does not allow filenames that begin with a dot. lt_cv_objdir=_libs fi rmdir .libs 2>/dev/null fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5 $as_echo "$lt_cv_objdir" >&6; } objdir=$lt_cv_objdir cat >>confdefs.h <<_ACEOF #define LT_OBJDIR "$lt_cv_objdir/" _ACEOF case $host_os in aix3*) # AIX sometimes has problems with the GCC collect2 program. For some # reason, if we set the COLLECT_NAMES environment variable, the problems # vanish in a puff of smoke. if test set != "${COLLECT_NAMES+set}"; then COLLECT_NAMES= export COLLECT_NAMES fi ;; esac # Global variables: ofile=libtool can_build_shared=yes # All known linkers require a '.a' archive for static linking (except MSVC, # which needs '.lib'). libext=a with_gnu_ld=$lt_cv_prog_gnu_ld old_CC=$CC old_CFLAGS=$CFLAGS # Set sane defaults for various variables test -z "$CC" && CC=cc test -z "$LTCC" && LTCC=$CC test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS test -z "$LD" && LD=ld test -z "$ac_objext" && ac_objext=o func_cc_basename $compiler cc_basename=$func_cc_basename_result # Only perform the check for file, if the check method requires it test -z "$MAGIC_CMD" && MAGIC_CMD=file case $deplibs_check_method in file_magic*) if test "$file_magic_cmd" = '$MAGIC_CMD'; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5 $as_echo_n "checking for ${ac_tool_prefix}file... 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This will affect the creation of libtool libraries that *** depend on shared libraries, but programs linked with such libtool *** libraries will work regardless of this problem. Nevertheless, you *** may want to report the problem to your system manager and/or to *** bug-libtool@gnu.org _LT_EOF fi ;; esac fi break fi done IFS=$lt_save_ifs MAGIC_CMD=$lt_save_MAGIC_CMD ;; esac fi MAGIC_CMD=$lt_cv_path_MAGIC_CMD if test -n "$MAGIC_CMD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 $as_echo "$MAGIC_CMD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test -z "$lt_cv_path_MAGIC_CMD"; then if test -n "$ac_tool_prefix"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5 $as_echo_n "checking for file... 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This will affect the creation of libtool libraries that *** depend on shared libraries, but programs linked with such libtool *** libraries will work regardless of this problem. Nevertheless, you *** may want to report the problem to your system manager and/or to *** bug-libtool@gnu.org _LT_EOF fi ;; esac fi break fi done IFS=$lt_save_ifs MAGIC_CMD=$lt_save_MAGIC_CMD ;; esac fi MAGIC_CMD=$lt_cv_path_MAGIC_CMD if test -n "$MAGIC_CMD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 $as_echo "$MAGIC_CMD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi else MAGIC_CMD=: fi fi fi ;; esac # Use C for the default configuration in the libtool script lt_save_CC=$CC ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu # Source file extension for C test sources. ac_ext=c # Object file extension for compiled C test sources. objext=o objext=$objext # Code to be used in simple compile tests lt_simple_compile_test_code="int some_variable = 0;" # Code to be used in simple link tests lt_simple_link_test_code='int main(){return(0);}' # If no C compiler was specified, use CC. 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Therefore, libtool *** is disabling shared libraries support. We urge you to upgrade GNU *** binutils to release 2.9.1 or newer. Another option is to modify *** your PATH or compiler configuration so that the native linker is *** used, and then restart. _LT_EOF elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' else ld_shlibs=no fi ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) case `$LD -v 2>&1` in *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*) ld_shlibs=no cat <<_LT_EOF 1>&2 *** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot *** reliably create shared libraries on SCO systems. Therefore, libtool *** is disabling shared libraries support. 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then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag else if test ia64 = "$host_cpu"; then hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib' allow_undefined_flag="-z nodefs" archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" else # Determine the default libpath from the value encoded in an # empty executable. if test set = "${lt_cv_aix_libpath+set}"; then aix_libpath=$lt_cv_aix_libpath else if ${lt_cv_aix_libpath_+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" # Warning - without using the other run time loading flags, # -berok will link without error, but may produce a broken library. no_undefined_flag=' $wl-bernotok' allow_undefined_flag=' $wl-berok' if test yes = "$with_gnu_ld"; then # We only use this code for GNU lds that support --whole-archive. whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive' else # Exported symbols can be pulled into shared objects from archives whole_archive_flag_spec='$convenience' fi archive_cmds_need_lc=yes archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' # -brtl affects multiple linker settings, -berok does not and is overridden later compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' if test svr4 != "$with_aix_soname"; then # This is similar to how AIX traditionally builds its shared libraries. archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' fi if test aix != "$with_aix_soname"; then archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' else # used by -dlpreopen to get the symbols archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir' fi archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d' fi fi ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' archive_expsym_cmds='' ;; m68k) archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' hardcode_libdir_flag_spec='-L$libdir' hardcode_minus_L=yes ;; esac ;; bsdi[45]*) export_dynamic_flag_spec=-rdynamic ;; cygwin* | mingw* | pw32* | cegcc*) # When not using gcc, we currently assume that we are using # Microsoft Visual C++. # hardcode_libdir_flag_spec is actually meaningless, as there is # no search path for DLLs. case $cc_basename in cl*) # Native MSVC hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported always_export_symbols=yes file_list_spec='@' # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then cp "$export_symbols" "$output_objdir/$soname.def"; echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; else $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; fi~ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ linknames=' # The linker will not automatically build a static lib if we build a DLL. # _LT_TAGVAR(old_archive_from_new_cmds, )='true' enable_shared_with_static_runtimes=yes exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' # Don't use ranlib old_postinstall_cmds='chmod 644 $oldlib' postlink_cmds='lt_outputfile="@OUTPUT@"~ lt_tool_outputfile="@TOOL_OUTPUT@"~ case $lt_outputfile in *.exe|*.EXE) ;; *) lt_outputfile=$lt_outputfile.exe lt_tool_outputfile=$lt_tool_outputfile.exe ;; esac~ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; $RM "$lt_outputfile.manifest"; fi' ;; *) # Assume MSVC wrapper hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' # The linker will automatically build a .lib file if we build a DLL. old_archive_from_new_cmds='true' # FIXME: Should let the user specify the lib program. old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' enable_shared_with_static_runtimes=yes ;; esac ;; darwin* | rhapsody*) archive_cmds_need_lc=no hardcode_direct=no hardcode_automatic=yes hardcode_shlibpath_var=unsupported if test yes = "$lt_cv_ld_force_load"; then whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' else whole_archive_flag_spec='' fi link_all_deplibs=yes allow_undefined_flag=$_lt_dar_allow_undefined case $cc_basename in ifort*|nagfor*) _lt_dar_can_shared=yes ;; *) _lt_dar_can_shared=$GCC ;; esac if test yes = "$_lt_dar_can_shared"; then output_verbose_link_cmd=func_echo_all archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" else ld_shlibs=no fi ;; dgux*) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_libdir_flag_spec='-L$libdir' hardcode_shlibpath_var=no ;; # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor # support. 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linux*) case $cc_basename in tcc*) # Fabrice Bellard et al's Tiny C Compiler ld_shlibs=yes archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' ;; esac ;; netbsd* | netbsdelf*-gnu) if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out else archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF fi hardcode_libdir_flag_spec='-R$libdir' hardcode_direct=yes hardcode_shlibpath_var=no ;; newsos6) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_direct=yes hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: hardcode_shlibpath_var=no ;; *nto* | *qnx*) ;; openbsd* | bitrig*) if test -f /usr/libexec/ld.so; then hardcode_direct=yes hardcode_shlibpath_var=no hardcode_direct_absolute=yes if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' hardcode_libdir_flag_spec='$wl-rpath,$libdir' export_dynamic_flag_spec='$wl-E' else archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' hardcode_libdir_flag_spec='$wl-rpath,$libdir' fi else ld_shlibs=no fi ;; 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fi~ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' enable_shared_with_static_runtimes=yes ;; osf3*) if test yes = "$GCC"; then allow_undefined_flag=' $wl-expect_unresolved $wl\*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' else allow_undefined_flag=' -expect_unresolved \*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' fi archive_cmds_need_lc='no' hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: ;; 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The import file would start with # the line '#! .'. This would cause the generated library to # depend on '.', always an invalid library. This was fixed in # development snapshots of GCC prior to 3.0. case $host_os in aix4 | aix4.[01] | aix4.[01].*) if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' echo ' yes ' echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then : else can_build_shared=no fi ;; esac # Using Import Files as archive members, it is possible to support # filename-based versioning of shared library archives on AIX. While # this would work for both with and without runtime linking, it will # prevent static linking of such archives. So we do filename-based # shared library versioning with .so extension only, which is used # when both runtime linking and shared linking is enabled. # Unfortunately, runtime linking may impact performance, so we do # not want this to be the default eventually. Also, we use the # versioned .so libs for executables only if there is the -brtl # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. # To allow for filename-based versioning support, we need to create # libNAME.so.V as an archive file, containing: # *) an Import File, referring to the versioned filename of the # archive as well as the shared archive member, telling the # bitwidth (32 or 64) of that shared object, and providing the # list of exported symbols of that shared object, eventually # decorated with the 'weak' keyword # *) the shared object with the F_LOADONLY flag set, to really avoid # it being seen by the linker. # At run time we better use the real file rather than another symlink, # but for link time we create the symlink libNAME.so -> libNAME.so.V case $with_aix_soname,$aix_use_runtimelinking in # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct # soname into executable. Probably we can add versioning support to # collect2, so additional links can be useful in future. aix,yes) # traditional libtool dynamic_linker='AIX unversionable lib.so' # If using run time linking (on AIX 4.2 or later) use lib.so # instead of lib.a to let people know that these are not # typical AIX shared libraries. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; aix,no) # traditional AIX only dynamic_linker='AIX lib.a(lib.so.V)' # We preserve .a as extension for shared libraries through AIX4.2 # and later when we are not doing run time linking. library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' ;; svr4,*) # full svr4 only dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,yes) # both, prefer svr4 dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # unpreferred sharedlib libNAME.a needs extra handling postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,no) # both, prefer aix dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' ;; esac shlibpath_var=LIBPATH fi ;; amigaos*) case $host_cpu in powerpc) # Since July 2007 AmigaOS4 officially supports .so libraries. # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; m68k) library_names_spec='$libname.ixlibrary $libname.a' # Create ${libname}_ixlibrary.a entries in /sys/libs. finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' ;; esac ;; beos*) library_names_spec='$libname$shared_ext' dynamic_linker="$host_os ld.so" shlibpath_var=LIBRARY_PATH ;; bsdi[45]*) version_type=linux # correct to gnu/linux during the next big refactor need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' shlibpath_var=LD_LIBRARY_PATH sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" # the default ld.so.conf also contains /usr/contrib/lib and # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow # libtool to hard-code these into programs ;; cygwin* | mingw* | pw32* | cegcc*) version_type=windows shrext_cmds=.dll need_version=no need_lib_prefix=no case $GCC,$cc_basename in yes,*) # gcc library_names_spec='$libname.dll.a' # DLL is installed to $(libdir)/../bin by postinstall_cmds postinstall_cmds='base_file=`basename \$file`~ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ dldir=$destdir/`dirname \$dlpath`~ test -d \$dldir || mkdir -p \$dldir~ $install_prog $dir/$dlname \$dldir/$dlname~ chmod a+x \$dldir/$dlname~ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; fi' postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ dlpath=$dir/\$dldll~ $RM \$dlpath' shlibpath_overrides_runpath=yes case $host_os in cygwin*) # Cygwin DLLs use 'cyg' prefix rather than 'lib' soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" ;; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" sys_lib_dlsearch_path_spec=/usr/lib/hpux32 else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" sys_lib_dlsearch_path_spec=/usr/lib/hpux64 fi ;; hppa*64*) shrext_cmds='.sl' hardcode_into_libs=yes dynamic_linker="$host_os dld.sl" shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec ;; *) shrext_cmds='.sl' dynamic_linker="$host_os dld.sl" shlibpath_var=SHLIB_PATH shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' ;; esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[3-9]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. hardcode_libdir_flag_spec='-L$libdir' ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no # Some binutils ld are patched to set DT_RUNPATH if ${lt_cv_shlibpath_overrides_runpath+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_shlibpath_overrides_runpath=no save_LDFLAGS=$LDFLAGS save_libdir=$libdir eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : lt_cv_shlibpath_overrides_runpath=yes fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS=$save_LDFLAGS libdir=$save_libdir fi shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes # Ideally, we could use ldconfig to report *all* directores which are # searched for libraries, however this is still not possible. 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newsos6) version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; *nto* | *qnx*) version_type=qnx need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes dynamic_linker='ldqnx.so' ;; openbsd* | bitrig*) version_type=sunos sys_lib_dlsearch_path_spec=/usr/lib need_lib_prefix=no if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then need_version=no else need_version=yes fi library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; 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mips:*:*:UMIPS | mips:*:*:RISCos) eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #ifdef __cplusplus #include /* for printf() prototype */ int main (int argc, char *argv[]) { #else int main (argc, argv) int argc; char *argv[]; { #endif #if defined (host_mips) && defined (MIPSEB) #if defined (SYSTYPE_SYSV) printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_SVR4) printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0); #endif #endif exit (-1); } EOF $CC_FOR_BUILD -o "$dummy" "$dummy.c" && dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` && SYSTEM_NAME=`"$dummy" "$dummyarg"` && { echo "$SYSTEM_NAME"; exit; } echo mips-mips-riscos"$UNAME_RELEASE" exit ;; Motorola:PowerMAX_OS:*:*) echo powerpc-motorola-powermax exit ;; Motorola:*:4.3:PL8-*) echo powerpc-harris-powermax exit ;; Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) echo powerpc-harris-powermax exit ;; Night_Hawk:Power_UNIX:*:*) echo powerpc-harris-powerunix exit ;; m88k:CX/UX:7*:*) echo m88k-harris-cxux7 exit ;; m88k:*:4*:R4*) echo m88k-motorola-sysv4 exit ;; m88k:*:3*:R3*) echo m88k-motorola-sysv3 exit ;; AViiON:dgux:*:*) # DG/UX returns AViiON for all architectures UNAME_PROCESSOR=`/usr/bin/uname -p` if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ] then if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \ [ "$TARGET_BINARY_INTERFACE"x = x ] then echo m88k-dg-dgux"$UNAME_RELEASE" else echo m88k-dg-dguxbcs"$UNAME_RELEASE" fi else echo i586-dg-dgux"$UNAME_RELEASE" fi exit ;; M88*:DolphinOS:*:*) # DolphinOS (SVR3) echo m88k-dolphin-sysv3 exit ;; M88*:*:R3*:*) # Delta 88k system running SVR3 echo m88k-motorola-sysv3 exit ;; XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) echo m88k-tektronix-sysv3 exit ;; Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) echo m68k-tektronix-bsd exit ;; *:IRIX*:*:*) echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`" exit ;; ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' i*86:AIX:*:*) echo i386-ibm-aix exit ;; ia64:AIX:*:*) if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" fi echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV" exit ;; *:AIX:2:3) if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #include main() { if (!__power_pc()) exit(1); puts("powerpc-ibm-aix3.2.5"); exit(0); } EOF if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` then echo "$SYSTEM_NAME" else echo rs6000-ibm-aix3.2.5 fi elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then echo rs6000-ibm-aix3.2.4 else echo rs6000-ibm-aix3.2 fi exit ;; *:AIX:*:[4567]) IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if [ -x /usr/bin/lslpp ] ; then IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` else IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" fi echo "$IBM_ARCH"-ibm-aix"$IBM_REV" exit ;; *:AIX:*:*) echo rs6000-ibm-aix exit ;; ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*) echo romp-ibm-bsd4.4 exit ;; ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and echo romp-ibm-bsd"$UNAME_RELEASE" # 4.3 with uname added to exit ;; # report: romp-ibm BSD 4.3 *:BOSX:*:*) echo rs6000-bull-bosx exit ;; DPX/2?00:B.O.S.:*:*) echo m68k-bull-sysv3 exit ;; 9000/[34]??:4.3bsd:1.*:*) echo m68k-hp-bsd exit ;; hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) echo m68k-hp-bsd4.4 exit ;; 9000/[34678]??:HP-UX:*:*) HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` case "$UNAME_MACHINE" in 9000/31?) HP_ARCH=m68000 ;; 9000/[34]??) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` case "$sc_cpu_version" in 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1 532) # CPU_PA_RISC2_0 case "$sc_kernel_bits" in 32) HP_ARCH=hppa2.0n ;; 64) HP_ARCH=hppa2.0w ;; '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20 esac ;; esac fi if [ "$HP_ARCH" = "" ]; then eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #define _HPUX_SOURCE #include #include int main () { #if defined(_SC_KERNEL_BITS) long bits = sysconf(_SC_KERNEL_BITS); #endif long cpu = sysconf (_SC_CPU_VERSION); switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0"); break; case CPU_PA_RISC1_1: puts ("hppa1.1"); break; case CPU_PA_RISC2_0: #if defined(_SC_KERNEL_BITS) switch (bits) { case 64: puts ("hppa2.0w"); break; case 32: puts ("hppa2.0n"); break; default: puts ("hppa2.0"); break; } break; #else /* !defined(_SC_KERNEL_BITS) */ puts ("hppa2.0"); break; #endif default: puts ("hppa1.0"); break; } exit (0); } EOF (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"` test -z "$HP_ARCH" && HP_ARCH=hppa fi ;; esac if [ "$HP_ARCH" = hppa2.0w ] then eval "$set_cc_for_build" # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler # generating 64-bit code. GNU and HP use different nomenclature: # # $ CC_FOR_BUILD=cc ./config.guess # => hppa2.0w-hp-hpux11.23 # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess # => hppa64-hp-hpux11.23 if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | grep -q __LP64__ then HP_ARCH=hppa2.0w else HP_ARCH=hppa64 fi fi echo "$HP_ARCH"-hp-hpux"$HPUX_REV" exit ;; ia64:HP-UX:*:*) HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` echo ia64-hp-hpux"$HPUX_REV" exit ;; 3050*:HI-UX:*:*) eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #include int main () { long cpu = sysconf (_SC_CPU_VERSION); /* The order matters, because CPU_IS_HP_MC68K erroneously returns true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct results, however. */ if (CPU_IS_PA_RISC (cpu)) { switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; default: puts ("hppa-hitachi-hiuxwe2"); break; } } else if (CPU_IS_HP_MC68K (cpu)) puts ("m68k-hitachi-hiuxwe2"); else puts ("unknown-hitachi-hiuxwe2"); exit (0); } EOF $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` && { echo "$SYSTEM_NAME"; exit; } echo unknown-hitachi-hiuxwe2 exit ;; 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*) echo hppa1.1-hp-bsd exit ;; 9000/8??:4.3bsd:*:*) echo hppa1.0-hp-bsd exit ;; *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) echo hppa1.0-hp-mpeix exit ;; hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*) echo hppa1.1-hp-osf exit ;; hp8??:OSF1:*:*) echo hppa1.0-hp-osf exit ;; i*86:OSF1:*:*) if [ -x /usr/sbin/sysversion ] ; then echo "$UNAME_MACHINE"-unknown-osf1mk else echo "$UNAME_MACHINE"-unknown-osf1 fi exit ;; parisc*:Lites*:*:*) echo hppa1.1-hp-lites exit ;; C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) echo c1-convex-bsd exit ;; C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) echo c34-convex-bsd exit ;; C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) echo c38-convex-bsd exit ;; C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) echo c4-convex-bsd exit ;; CRAY*Y-MP:*:*:*) echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*[A-Z]90:*:*:*) echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ -e 's/\.[^.]*$/.X/' exit ;; CRAY*TS:*:*:*) echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*T3E:*:*:*) echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*SV1:*:*:*) echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; *:UNICOS/mp:*:*) echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'` echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; 5000:UNIX_System_V:4.*:*) FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'` echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE" exit ;; sparc*:BSD/OS:*:*) echo sparc-unknown-bsdi"$UNAME_RELEASE" exit ;; *:BSD/OS:*:*) echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE" exit ;; *:FreeBSD:*:*) UNAME_PROCESSOR=`/usr/bin/uname -p` case "$UNAME_PROCESSOR" in amd64) UNAME_PROCESSOR=x86_64 ;; i386) UNAME_PROCESSOR=i586 ;; esac echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" exit ;; i*:CYGWIN*:*) echo "$UNAME_MACHINE"-pc-cygwin exit ;; *:MINGW64*:*) echo "$UNAME_MACHINE"-pc-mingw64 exit ;; *:MINGW*:*) echo "$UNAME_MACHINE"-pc-mingw32 exit ;; *:MSYS*:*) echo "$UNAME_MACHINE"-pc-msys exit ;; i*:PW*:*) echo "$UNAME_MACHINE"-pc-pw32 exit ;; *:Interix*:*) case "$UNAME_MACHINE" in x86) echo i586-pc-interix"$UNAME_RELEASE" exit ;; authenticamd | genuineintel | EM64T) echo x86_64-unknown-interix"$UNAME_RELEASE" exit ;; IA64) echo ia64-unknown-interix"$UNAME_RELEASE" exit ;; esac ;; i*:UWIN*:*) echo "$UNAME_MACHINE"-pc-uwin exit ;; amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) echo x86_64-unknown-cygwin exit ;; prep*:SunOS:5.*:*) echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" exit ;; *:GNU:*:*) # the GNU system echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`" exit ;; *:GNU/*:*:*) # other systems with GNU libc and userland echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC" exit ;; i*86:Minix:*:*) echo "$UNAME_MACHINE"-pc-minix exit ;; aarch64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; aarch64_be:Linux:*:*) UNAME_MACHINE=aarch64_be echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; alpha:Linux:*:*) case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in EV5) UNAME_MACHINE=alphaev5 ;; EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; PCA57) UNAME_MACHINE=alphapca56 ;; EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 0 ; then LIBC=gnulibc1 ; fi echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; arc:Linux:*:* | arceb:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; arm*:Linux:*:*) eval "$set_cc_for_build" if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_EABI__ then echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" else if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_PCS_VFP then echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi else echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf fi fi exit ;; avr32*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; cris:Linux:*:*) echo "$UNAME_MACHINE"-axis-linux-"$LIBC" exit ;; crisv32:Linux:*:*) echo "$UNAME_MACHINE"-axis-linux-"$LIBC" exit ;; e2k:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; frv:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; hexagon:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; i*86:Linux:*:*) echo "$UNAME_MACHINE"-pc-linux-"$LIBC" exit ;; ia64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; k1om:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; m32r*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; m68*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; mips:Linux:*:* | mips64:Linux:*:*) eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #undef CPU #undef ${UNAME_MACHINE} #undef ${UNAME_MACHINE}el #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) CPU=${UNAME_MACHINE}el #else #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) CPU=${UNAME_MACHINE} #else CPU= #endif #endif EOF eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`" test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; } ;; mips64el:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; openrisc*:Linux:*:*) echo or1k-unknown-linux-"$LIBC" exit ;; or32:Linux:*:* | or1k*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; padre:Linux:*:*) echo sparc-unknown-linux-"$LIBC" exit ;; parisc64:Linux:*:* | hppa64:Linux:*:*) echo hppa64-unknown-linux-"$LIBC" exit ;; parisc:Linux:*:* | hppa:Linux:*:*) # Look for CPU level case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;; PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;; *) echo hppa-unknown-linux-"$LIBC" ;; esac exit ;; ppc64:Linux:*:*) echo powerpc64-unknown-linux-"$LIBC" exit ;; ppc:Linux:*:*) echo powerpc-unknown-linux-"$LIBC" exit ;; ppc64le:Linux:*:*) echo powerpc64le-unknown-linux-"$LIBC" exit ;; ppcle:Linux:*:*) echo powerpcle-unknown-linux-"$LIBC" exit ;; riscv32:Linux:*:* | riscv64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; s390:Linux:*:* | s390x:Linux:*:*) echo "$UNAME_MACHINE"-ibm-linux-"$LIBC" exit ;; sh64*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; sh*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; sparc:Linux:*:* | sparc64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; tile*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; vax:Linux:*:*) echo "$UNAME_MACHINE"-dec-linux-"$LIBC" exit ;; x86_64:Linux:*:*) if objdump -f /bin/sh | grep -q elf32-x86-64; then echo "$UNAME_MACHINE"-pc-linux-"$LIBC"x32 else echo "$UNAME_MACHINE"-pc-linux-"$LIBC" fi exit ;; xtensa*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; i*86:DYNIX/ptx:4*:*) # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. # earlier versions are messed up and put the nodename in both # sysname and nodename. echo i386-sequent-sysv4 exit ;; i*86:UNIX_SV:4.2MP:2.*) # Unixware is an offshoot of SVR4, but it has its own version # number series starting with 2... # I am not positive that other SVR4 systems won't match this, # I just have to hope. -- rms. # Use sysv4.2uw... so that sysv4* matches it. echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION" exit ;; i*86:OS/2:*:*) # If we were able to find `uname', then EMX Unix compatibility # is probably installed. echo "$UNAME_MACHINE"-pc-os2-emx exit ;; i*86:XTS-300:*:STOP) echo "$UNAME_MACHINE"-unknown-stop exit ;; i*86:atheos:*:*) echo "$UNAME_MACHINE"-unknown-atheos exit ;; i*86:syllable:*:*) echo "$UNAME_MACHINE"-pc-syllable exit ;; i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) echo i386-unknown-lynxos"$UNAME_RELEASE" exit ;; i*86:*DOS:*:*) echo "$UNAME_MACHINE"-pc-msdosdjgpp exit ;; i*86:*:4.*:*) UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'` if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL" else echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL" fi exit ;; i*86:*:5:[678]*) # UnixWare 7.x, OpenUNIX and OpenServer 6. case `/bin/uname -X | grep "^Machine"` in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; *Pent*|*Celeron) UNAME_MACHINE=i686 ;; esac echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}" exit ;; i*86:*:3.2:*) if test -f /usr/options/cb.name; then UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ && UNAME_MACHINE=i586 (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ && UNAME_MACHINE=i686 (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ && UNAME_MACHINE=i686 echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL" else echo "$UNAME_MACHINE"-pc-sysv32 fi exit ;; pc:*:*:*) # Left here for compatibility: # uname -m prints for DJGPP always 'pc', but it prints nothing about # the processor, so we play safe by assuming i586. # Note: whatever this is, it MUST be the same as what config.sub # prints for the "djgpp" host, or else GDB configure will decide that # this is a cross-build. echo i586-pc-msdosdjgpp exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; paragon:*:*:*) echo i860-intel-osf1 exit ;; i860:*:4.*:*) # i860-SVR4 if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4 else # Add other i860-SVR4 vendors below as they are discovered. echo i860-unknown-sysv"$UNAME_RELEASE" # Unknown i860-SVR4 fi exit ;; mini*:CTIX:SYS*5:*) # "miniframe" echo m68010-convergent-sysv exit ;; mc68k:UNIX:SYSTEM5:3.51m) echo m68k-convergent-sysv exit ;; M680?0:D-NIX:5.3:*) echo m68k-diab-dnix exit ;; M68*:*:R3V[5678]*:*) test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) OS_REL='' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4; exit; } ;; NCR*:*:4.2:* | MPRAS*:*:4.2:*) OS_REL='.3' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) echo m68k-unknown-lynxos"$UNAME_RELEASE" exit ;; mc68030:UNIX_System_V:4.*:*) echo m68k-atari-sysv4 exit ;; TSUNAMI:LynxOS:2.*:*) echo sparc-unknown-lynxos"$UNAME_RELEASE" exit ;; rs6000:LynxOS:2.*:*) echo rs6000-unknown-lynxos"$UNAME_RELEASE" exit ;; PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) echo powerpc-unknown-lynxos"$UNAME_RELEASE" exit ;; SM[BE]S:UNIX_SV:*:*) echo mips-dde-sysv"$UNAME_RELEASE" exit ;; RM*:ReliantUNIX-*:*:*) echo mips-sni-sysv4 exit ;; RM*:SINIX-*:*:*) echo mips-sni-sysv4 exit ;; *:SINIX-*:*:*) if uname -p 2>/dev/null >/dev/null ; then UNAME_MACHINE=`(uname -p) 2>/dev/null` echo "$UNAME_MACHINE"-sni-sysv4 else echo ns32k-sni-sysv fi exit ;; PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort # says echo i586-unisys-sysv4 exit ;; *:UNIX_System_V:4*:FTX*) # From Gerald Hewes . # How about differentiating between stratus architectures? -djm echo hppa1.1-stratus-sysv4 exit ;; *:*:*:FTX*) # From seanf@swdc.stratus.com. echo i860-stratus-sysv4 exit ;; i*86:VOS:*:*) # From Paul.Green@stratus.com. echo "$UNAME_MACHINE"-stratus-vos exit ;; *:VOS:*:*) # From Paul.Green@stratus.com. echo hppa1.1-stratus-vos exit ;; mc68*:A/UX:*:*) echo m68k-apple-aux"$UNAME_RELEASE" exit ;; news*:NEWS-OS:6*:*) echo mips-sony-newsos6 exit ;; R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) if [ -d /usr/nec ]; then echo mips-nec-sysv"$UNAME_RELEASE" else echo mips-unknown-sysv"$UNAME_RELEASE" fi exit ;; BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. echo powerpc-be-beos exit ;; BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. echo powerpc-apple-beos exit ;; BePC:BeOS:*:*) # BeOS running on Intel PC compatible. echo i586-pc-beos exit ;; BePC:Haiku:*:*) # Haiku running on Intel PC compatible. echo i586-pc-haiku exit ;; x86_64:Haiku:*:*) echo x86_64-unknown-haiku exit ;; SX-4:SUPER-UX:*:*) echo sx4-nec-superux"$UNAME_RELEASE" exit ;; SX-5:SUPER-UX:*:*) echo sx5-nec-superux"$UNAME_RELEASE" exit ;; SX-6:SUPER-UX:*:*) echo sx6-nec-superux"$UNAME_RELEASE" exit ;; SX-7:SUPER-UX:*:*) echo sx7-nec-superux"$UNAME_RELEASE" exit ;; SX-8:SUPER-UX:*:*) echo sx8-nec-superux"$UNAME_RELEASE" exit ;; SX-8R:SUPER-UX:*:*) echo sx8r-nec-superux"$UNAME_RELEASE" exit ;; SX-ACE:SUPER-UX:*:*) echo sxace-nec-superux"$UNAME_RELEASE" exit ;; Power*:Rhapsody:*:*) echo powerpc-apple-rhapsody"$UNAME_RELEASE" exit ;; *:Rhapsody:*:*) echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE" exit ;; *:Darwin:*:*) UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown eval "$set_cc_for_build" if test "$UNAME_PROCESSOR" = unknown ; then UNAME_PROCESSOR=powerpc fi if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then if [ "$CC_FOR_BUILD" != no_compiler_found ]; then if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_64BIT_ARCH >/dev/null then case $UNAME_PROCESSOR in i386) UNAME_PROCESSOR=x86_64 ;; powerpc) UNAME_PROCESSOR=powerpc64 ;; esac fi # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_PPC >/dev/null then UNAME_PROCESSOR=powerpc fi fi elif test "$UNAME_PROCESSOR" = i386 ; then # Avoid executing cc on OS X 10.9, as it ships with a stub # that puts up a graphical alert prompting to install # developer tools. Any system running Mac OS X 10.7 or # later (Darwin 11 and later) is required to have a 64-bit # processor. This is not true of the ARM version of Darwin # that Apple uses in portable devices. UNAME_PROCESSOR=x86_64 fi echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE" exit ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) UNAME_PROCESSOR=`uname -p` if test "$UNAME_PROCESSOR" = x86; then UNAME_PROCESSOR=i386 UNAME_MACHINE=pc fi echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE" exit ;; *:QNX:*:4*) echo i386-pc-qnx exit ;; NEO-*:NONSTOP_KERNEL:*:*) echo neo-tandem-nsk"$UNAME_RELEASE" exit ;; NSE-*:NONSTOP_KERNEL:*:*) echo nse-tandem-nsk"$UNAME_RELEASE" exit ;; NSR-*:NONSTOP_KERNEL:*:*) echo nsr-tandem-nsk"$UNAME_RELEASE" exit ;; NSV-*:NONSTOP_KERNEL:*:*) echo nsv-tandem-nsk"$UNAME_RELEASE" exit ;; NSX-*:NONSTOP_KERNEL:*:*) echo nsx-tandem-nsk"$UNAME_RELEASE" exit ;; *:NonStop-UX:*:*) echo mips-compaq-nonstopux exit ;; BS2000:POSIX*:*:*) echo bs2000-siemens-sysv exit ;; DS/*:UNIX_System_V:*:*) echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE" exit ;; *:Plan9:*:*) # "uname -m" is not consistent, so use $cputype instead. 386 # is converted to i386 for consistency with other x86 # operating systems. if test "$cputype" = 386; then UNAME_MACHINE=i386 else UNAME_MACHINE="$cputype" fi echo "$UNAME_MACHINE"-unknown-plan9 exit ;; *:TOPS-10:*:*) echo pdp10-unknown-tops10 exit ;; *:TENEX:*:*) echo pdp10-unknown-tenex exit ;; KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) echo pdp10-dec-tops20 exit ;; XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) echo pdp10-xkl-tops20 exit ;; *:TOPS-20:*:*) echo pdp10-unknown-tops20 exit ;; *:ITS:*:*) echo pdp10-unknown-its exit ;; SEI:*:*:SEIUX) echo mips-sei-seiux"$UNAME_RELEASE" exit ;; *:DragonFly:*:*) echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" exit ;; *:*VMS:*:*) UNAME_MACHINE=`(uname -p) 2>/dev/null` case "$UNAME_MACHINE" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; V*) echo vax-dec-vms ; exit ;; esac ;; *:XENIX:*:SysV) echo i386-pc-xenix exit ;; i*86:skyos:*:*) echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`" exit ;; i*86:rdos:*:*) echo "$UNAME_MACHINE"-pc-rdos exit ;; i*86:AROS:*:*) echo "$UNAME_MACHINE"-pc-aros exit ;; x86_64:VMkernel:*:*) echo "$UNAME_MACHINE"-unknown-esx exit ;; amd64:Isilon\ OneFS:*:*) echo x86_64-unknown-onefs exit ;; esac echo "$0: unable to guess system type" >&2 case "$UNAME_MACHINE:$UNAME_SYSTEM" in mips:Linux | mips64:Linux) # If we got here on MIPS GNU/Linux, output extra information. cat >&2 <&2 </dev/null || echo unknown` uname -r = `(uname -r) 2>/dev/null || echo unknown` uname -s = `(uname -s) 2>/dev/null || echo unknown` uname -v = `(uname -v) 2>/dev/null || echo unknown` /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` /bin/uname -X = `(/bin/uname -X) 2>/dev/null` hostinfo = `(hostinfo) 2>/dev/null` /bin/universe = `(/bin/universe) 2>/dev/null` /usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` /bin/arch = `(/bin/arch) 2>/dev/null` /usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` UNAME_MACHINE = "$UNAME_MACHINE" UNAME_RELEASE = "$UNAME_RELEASE" UNAME_SYSTEM = "$UNAME_SYSTEM" UNAME_VERSION = "$UNAME_VERSION" EOF exit 1 # Local variables: # eval: (add-hook 'write-file-functions 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: jool-4.0.7/config.sub0000755000175000017500000010645013576247344011416 00000000000000#! /bin/sh # Configuration validation subroutine script. # Copyright 1992-2018 Free Software Foundation, Inc. timestamp='2018-02-22' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see . # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that # program. This Exception is an additional permission under section 7 # of the GNU General Public License, version 3 ("GPLv3"). # Please send patches to . # # Configuration subroutine to validate and canonicalize a configuration type. # Supply the specified configuration type as an argument. # If it is invalid, we print an error message on stderr and exit with code 1. # Otherwise, we print the canonical config type on stdout and succeed. # You can get the latest version of this script from: # https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub # This file is supposed to be the same for all GNU packages # and recognize all the CPU types, system types and aliases # that are meaningful with *any* GNU software. # Each package is responsible for reporting which valid configurations # it does not support. The user should be able to distinguish # a failure to support a valid configuration from a meaningless # configuration. # The goal of this file is to map all the various variations of a given # machine specification into a single specification in the form: # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM # or in some cases, the newer four-part form: # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # It is wrong to echo any other type of specification. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS Canonicalize a configuration name. Options: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to ." version="\ GNU config.sub ($timestamp) Copyright 1992-2018 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$me --help' for more information." # Parse command line while test $# -gt 0 ; do case $1 in --time-stamp | --time* | -t ) echo "$timestamp" ; exit ;; --version | -v ) echo "$version" ; exit ;; --help | --h* | -h ) echo "$usage"; exit ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) echo "$me: invalid option $1$help" exit 1 ;; *local*) # First pass through any local machine types. echo "$1" exit ;; * ) break ;; esac done case $# in 0) echo "$me: missing argument$help" >&2 exit 1;; 1) ;; *) echo "$me: too many arguments$help" >&2 exit 1;; esac # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). # Here we must recognize all the valid KERNEL-OS combinations. maybe_os=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` case $maybe_os in nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \ kopensolaris*-gnu* | cloudabi*-eabi* | \ storm-chaos* | os2-emx* | rtmk-nova*) os=-$maybe_os basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` ;; android-linux) os=-linux-android basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown ;; *) basic_machine=`echo "$1" | sed 's/-[^-]*$//'` if [ "$basic_machine" != "$1" ] then os=`echo "$1" | sed 's/.*-/-/'` else os=; fi ;; esac ### Let's recognize common machines as not being operating systems so ### that things like config.sub decstation-3100 work. We also ### recognize some manufacturers as not being operating systems, so we ### can provide default operating systems below. case $os in -sun*os*) # Prevent following clause from handling this invalid input. ;; -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ -apple | -axis | -knuth | -cray | -microblaze*) os= basic_machine=$1 ;; -bluegene*) os=-cnk ;; -sim | -cisco | -oki | -wec | -winbond) os= basic_machine=$1 ;; -scout) ;; -wrs) os=-vxworks basic_machine=$1 ;; -chorusos*) os=-chorusos basic_machine=$1 ;; -chorusrdb) os=-chorusrdb basic_machine=$1 ;; -hiux*) os=-hiuxwe2 ;; -sco6) os=-sco5v6 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco5) os=-sco3.2v5 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco4) os=-sco3.2v4 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco3.2.[4-9]*) os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco3.2v[4-9]*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco5v6*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco*) os=-sco3.2v2 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -udk*) basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -isc) os=-isc2.2 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -clix*) basic_machine=clipper-intergraph ;; -isc*) basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -lynx*178) os=-lynxos178 ;; -lynx*5) os=-lynxos5 ;; -lynx*) os=-lynxos ;; -ptx*) basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'` ;; -psos*) os=-psos ;; -mint | -mint[0-9]*) basic_machine=m68k-atari os=-mint ;; esac # Decode aliases for certain CPU-COMPANY combinations. case $basic_machine in # Recognize the basic CPU types without company name. # Some are omitted here because they have special meanings below. 1750a | 580 \ | a29k \ | aarch64 | aarch64_be \ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ | am33_2.0 \ | arc | arceb \ | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \ | avr | avr32 \ | ba \ | be32 | be64 \ | bfin \ | c4x | c8051 | clipper \ | d10v | d30v | dlx | dsp16xx \ | e2k | epiphany \ | fido | fr30 | frv | ft32 \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | hexagon \ | i370 | i860 | i960 | ia16 | ia64 \ | ip2k | iq2000 \ | k1om \ | le32 | le64 \ | lm32 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ | mips | mipsbe | mipseb | mipsel | mipsle \ | mips16 \ | mips64 | mips64el \ | mips64octeon | mips64octeonel \ | mips64orion | mips64orionel \ | mips64r5900 | mips64r5900el \ | mips64vr | mips64vrel \ | mips64vr4100 | mips64vr4100el \ | mips64vr4300 | mips64vr4300el \ | mips64vr5000 | mips64vr5000el \ | mips64vr5900 | mips64vr5900el \ | mipsisa32 | mipsisa32el \ | mipsisa32r2 | mipsisa32r2el \ | mipsisa32r6 | mipsisa32r6el \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64r6 | mipsisa64r6el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipsr5900 | mipsr5900el \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | moxie \ | mt \ | msp430 \ | nds32 | nds32le | nds32be \ | nios | nios2 | nios2eb | nios2el \ | ns16k | ns32k \ | open8 | or1k | or1knd | or32 \ | pdp10 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle \ | pru \ | pyramid \ | riscv32 | riscv64 \ | rl78 | rx \ | score \ | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ | sh64 | sh64le \ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ | spu \ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ | ubicom32 \ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ | visium \ | wasm32 \ | x86 | xc16x | xstormy16 | xtensa \ | z8k | z80) basic_machine=$basic_machine-unknown ;; c54x) basic_machine=tic54x-unknown ;; c55x) basic_machine=tic55x-unknown ;; c6x) basic_machine=tic6x-unknown ;; leon|leon[3-9]) basic_machine=sparc-$basic_machine ;; m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip) basic_machine=$basic_machine-unknown os=-none ;; m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65) ;; ms1) basic_machine=mt-unknown ;; strongarm | thumb | xscale) basic_machine=arm-unknown ;; xgate) basic_machine=$basic_machine-unknown os=-none ;; xscaleeb) basic_machine=armeb-unknown ;; xscaleel) basic_machine=armel-unknown ;; # We use `pc' rather than `unknown' # because (1) that's what they normally are, and # (2) the word "unknown" tends to confuse beginning users. i*86 | x86_64) basic_machine=$basic_machine-pc ;; # Object if more than one company name word. *-*-*) echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2 exit 1 ;; # Recognize the basic CPU types with company name. 580-* \ | a29k-* \ | aarch64-* | aarch64_be-* \ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ | ba-* \ | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | c8051-* | clipper-* | craynv-* | cydra-* \ | d10v-* | d30v-* | dlx-* \ | e2k-* | elxsi-* \ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | hexagon-* \ | i*86-* | i860-* | i960-* | ia16-* | ia64-* \ | ip2k-* | iq2000-* \ | k1om-* \ | le32-* | le64-* \ | lm32-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ | microblaze-* | microblazeel-* \ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ | mips16-* \ | mips64-* | mips64el-* \ | mips64octeon-* | mips64octeonel-* \ | mips64orion-* | mips64orionel-* \ | mips64r5900-* | mips64r5900el-* \ | mips64vr-* | mips64vrel-* \ | mips64vr4100-* | mips64vr4100el-* \ | mips64vr4300-* | mips64vr4300el-* \ | mips64vr5000-* | mips64vr5000el-* \ | mips64vr5900-* | mips64vr5900el-* \ | mipsisa32-* | mipsisa32el-* \ | mipsisa32r2-* | mipsisa32r2el-* \ | mipsisa32r6-* | mipsisa32r6el-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64r6-* | mipsisa64r6el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipsr5900-* | mipsr5900el-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nds32-* | nds32le-* | nds32be-* \ | nios-* | nios2-* | nios2eb-* | nios2el-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | open8-* \ | or1k*-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ | pru-* \ | pyramid-* \ | riscv32-* | riscv64-* \ | rl78-* | romp-* | rs6000-* | rx-* \ | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ | sparclite-* \ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \ | tahoe-* \ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ | tile*-* \ | tron-* \ | ubicom32-* \ | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ | vax-* \ | visium-* \ | wasm32-* \ | we32k-* \ | x86-* | x86_64-* | xc16x-* | xps100-* \ | xstormy16-* | xtensa*-* \ | ymp-* \ | z8k-* | z80-*) ;; # Recognize the basic CPU types without company name, with glob match. xtensa*) basic_machine=$basic_machine-unknown ;; # Recognize the various machine names and aliases which stand # for a CPU type and a company and sometimes even an OS. 386bsd) basic_machine=i386-pc os=-bsd ;; 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) basic_machine=m68000-att ;; 3b*) basic_machine=we32k-att ;; a29khif) basic_machine=a29k-amd os=-udi ;; abacus) basic_machine=abacus-unknown ;; adobe68k) basic_machine=m68010-adobe os=-scout ;; alliant | fx80) basic_machine=fx80-alliant ;; altos | altos3068) basic_machine=m68k-altos ;; am29k) basic_machine=a29k-none os=-bsd ;; amd64) basic_machine=x86_64-pc ;; amd64-*) basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; amdahl) basic_machine=580-amdahl os=-sysv ;; amiga | amiga-*) basic_machine=m68k-unknown ;; amigaos | amigados) basic_machine=m68k-unknown os=-amigaos ;; amigaunix | amix) basic_machine=m68k-unknown os=-sysv4 ;; apollo68) basic_machine=m68k-apollo os=-sysv ;; apollo68bsd) basic_machine=m68k-apollo os=-bsd ;; aros) basic_machine=i386-pc os=-aros ;; asmjs) basic_machine=asmjs-unknown ;; aux) basic_machine=m68k-apple os=-aux ;; balance) basic_machine=ns32k-sequent os=-dynix ;; blackfin) basic_machine=bfin-unknown os=-linux ;; blackfin-*) basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=-linux ;; bluegene*) basic_machine=powerpc-ibm os=-cnk ;; c54x-*) basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; c55x-*) basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; c6x-*) basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; c90) basic_machine=c90-cray os=-unicos ;; cegcc) basic_machine=arm-unknown os=-cegcc ;; convex-c1) basic_machine=c1-convex os=-bsd ;; convex-c2) basic_machine=c2-convex os=-bsd ;; convex-c32) basic_machine=c32-convex os=-bsd ;; convex-c34) basic_machine=c34-convex os=-bsd ;; convex-c38) basic_machine=c38-convex os=-bsd ;; cray | j90) basic_machine=j90-cray os=-unicos ;; craynv) basic_machine=craynv-cray os=-unicosmp ;; cr16 | cr16-*) basic_machine=cr16-unknown os=-elf ;; crds | unos) basic_machine=m68k-crds ;; crisv32 | crisv32-* | etraxfs*) basic_machine=crisv32-axis ;; cris | cris-* | etrax*) basic_machine=cris-axis ;; crx) basic_machine=crx-unknown os=-elf ;; da30 | da30-*) basic_machine=m68k-da30 ;; decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) basic_machine=mips-dec ;; decsystem10* | dec10*) basic_machine=pdp10-dec os=-tops10 ;; decsystem20* | dec20*) basic_machine=pdp10-dec os=-tops20 ;; delta | 3300 | motorola-3300 | motorola-delta \ | 3300-motorola | delta-motorola) basic_machine=m68k-motorola ;; delta88) basic_machine=m88k-motorola os=-sysv3 ;; dicos) basic_machine=i686-pc os=-dicos ;; djgpp) basic_machine=i586-pc os=-msdosdjgpp ;; dpx20 | dpx20-*) basic_machine=rs6000-bull os=-bosx ;; dpx2*) basic_machine=m68k-bull os=-sysv3 ;; e500v[12]) basic_machine=powerpc-unknown os=$os"spe" ;; e500v[12]-*) basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=$os"spe" ;; ebmon29k) basic_machine=a29k-amd os=-ebmon ;; elxsi) basic_machine=elxsi-elxsi os=-bsd ;; encore | umax | mmax) basic_machine=ns32k-encore ;; es1800 | OSE68k | ose68k | ose | OSE) basic_machine=m68k-ericsson os=-ose ;; fx2800) basic_machine=i860-alliant ;; genix) basic_machine=ns32k-ns ;; gmicro) basic_machine=tron-gmicro os=-sysv ;; go32) basic_machine=i386-pc os=-go32 ;; h3050r* | hiux*) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; h8300hms) basic_machine=h8300-hitachi os=-hms ;; h8300xray) basic_machine=h8300-hitachi os=-xray ;; h8500hms) basic_machine=h8500-hitachi os=-hms ;; harris) basic_machine=m88k-harris os=-sysv3 ;; hp300-*) basic_machine=m68k-hp ;; hp300bsd) basic_machine=m68k-hp os=-bsd ;; hp300hpux) basic_machine=m68k-hp os=-hpux ;; hp3k9[0-9][0-9] | hp9[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k2[0-9][0-9] | hp9k31[0-9]) basic_machine=m68000-hp ;; hp9k3[2-9][0-9]) basic_machine=m68k-hp ;; hp9k6[0-9][0-9] | hp6[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k7[0-79][0-9] | hp7[0-79][0-9]) basic_machine=hppa1.1-hp ;; hp9k78[0-9] | hp78[0-9]) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[0-9][13679] | hp8[0-9][13679]) basic_machine=hppa1.1-hp ;; hp9k8[0-9][0-9] | hp8[0-9][0-9]) basic_machine=hppa1.0-hp ;; hppaosf) basic_machine=hppa1.1-hp os=-osf ;; hppro) basic_machine=hppa1.1-hp os=-proelf ;; i370-ibm* | ibm*) basic_machine=i370-ibm ;; i*86v32) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-sysv32 ;; i*86v4*) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-sysv4 ;; i*86v) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-sysv ;; i*86sol2) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-solaris2 ;; i386mach) basic_machine=i386-mach os=-mach ;; vsta) basic_machine=i386-unknown os=-vsta ;; iris | iris4d) basic_machine=mips-sgi case $os in -irix*) ;; *) os=-irix4 ;; esac ;; isi68 | isi) basic_machine=m68k-isi os=-sysv ;; leon-*|leon[3-9]-*) basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'` ;; m68knommu) basic_machine=m68k-unknown os=-linux ;; m68knommu-*) basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=-linux ;; magnum | m3230) basic_machine=mips-mips os=-sysv ;; merlin) basic_machine=ns32k-utek os=-sysv ;; microblaze*) basic_machine=microblaze-xilinx ;; mingw64) basic_machine=x86_64-pc os=-mingw64 ;; mingw32) basic_machine=i686-pc os=-mingw32 ;; mingw32ce) basic_machine=arm-unknown os=-mingw32ce ;; miniframe) basic_machine=m68000-convergent ;; *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) basic_machine=m68k-atari os=-mint ;; mips3*-*) basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'` ;; mips3*) basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown ;; monitor) basic_machine=m68k-rom68k os=-coff ;; morphos) basic_machine=powerpc-unknown os=-morphos ;; moxiebox) basic_machine=moxie-unknown os=-moxiebox ;; msdos) basic_machine=i386-pc os=-msdos ;; ms1-*) basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'` ;; msys) basic_machine=i686-pc os=-msys ;; mvs) basic_machine=i370-ibm os=-mvs ;; nacl) basic_machine=le32-unknown os=-nacl ;; ncr3000) basic_machine=i486-ncr os=-sysv4 ;; netbsd386) basic_machine=i386-unknown os=-netbsd ;; netwinder) basic_machine=armv4l-rebel os=-linux ;; news | news700 | news800 | news900) basic_machine=m68k-sony os=-newsos ;; news1000) basic_machine=m68030-sony os=-newsos ;; news-3600 | risc-news) basic_machine=mips-sony os=-newsos ;; necv70) basic_machine=v70-nec os=-sysv ;; next | m*-next) basic_machine=m68k-next case $os in -nextstep* ) ;; -ns2*) os=-nextstep2 ;; *) os=-nextstep3 ;; esac ;; nh3000) basic_machine=m68k-harris os=-cxux ;; nh[45]000) basic_machine=m88k-harris os=-cxux ;; nindy960) basic_machine=i960-intel os=-nindy ;; mon960) basic_machine=i960-intel os=-mon960 ;; nonstopux) basic_machine=mips-compaq os=-nonstopux ;; np1) basic_machine=np1-gould ;; neo-tandem) basic_machine=neo-tandem ;; nse-tandem) basic_machine=nse-tandem ;; nsr-tandem) basic_machine=nsr-tandem ;; nsv-tandem) basic_machine=nsv-tandem ;; nsx-tandem) basic_machine=nsx-tandem ;; op50n-* | op60c-*) basic_machine=hppa1.1-oki os=-proelf ;; openrisc | openrisc-*) basic_machine=or32-unknown ;; os400) basic_machine=powerpc-ibm os=-os400 ;; OSE68000 | ose68000) basic_machine=m68000-ericsson os=-ose ;; os68k) basic_machine=m68k-none os=-os68k ;; pa-hitachi) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; paragon) basic_machine=i860-intel os=-osf ;; parisc) basic_machine=hppa-unknown os=-linux ;; parisc-*) basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=-linux ;; pbd) basic_machine=sparc-tti ;; pbb) basic_machine=m68k-tti ;; pc532 | pc532-*) basic_machine=ns32k-pc532 ;; pc98) basic_machine=i386-pc ;; pc98-*) basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentium | p5 | k5 | k6 | nexgen | viac3) basic_machine=i586-pc ;; pentiumpro | p6 | 6x86 | athlon | athlon_*) basic_machine=i686-pc ;; pentiumii | pentium2 | pentiumiii | pentium3) basic_machine=i686-pc ;; pentium4) basic_machine=i786-pc ;; pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentiumpro-* | p6-* | 6x86-* | athlon-*) basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentium4-*) basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pn) basic_machine=pn-gould ;; power) basic_machine=power-ibm ;; ppc | ppcbe) basic_machine=powerpc-unknown ;; ppc-* | ppcbe-*) basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ppcle | powerpclittle) basic_machine=powerpcle-unknown ;; ppcle-* | powerpclittle-*) basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ppc64) basic_machine=powerpc64-unknown ;; ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ppc64le | powerpc64little) basic_machine=powerpc64le-unknown ;; ppc64le-* | powerpc64little-*) basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ps2) basic_machine=i386-ibm ;; pw32) basic_machine=i586-unknown os=-pw32 ;; rdos | rdos64) basic_machine=x86_64-pc os=-rdos ;; rdos32) basic_machine=i386-pc os=-rdos ;; rom68k) basic_machine=m68k-rom68k os=-coff ;; rm[46]00) basic_machine=mips-siemens ;; rtpc | rtpc-*) basic_machine=romp-ibm ;; s390 | s390-*) basic_machine=s390-ibm ;; s390x | s390x-*) basic_machine=s390x-ibm ;; sa29200) basic_machine=a29k-amd os=-udi ;; sb1) basic_machine=mipsisa64sb1-unknown ;; sb1el) basic_machine=mipsisa64sb1el-unknown ;; sde) basic_machine=mipsisa32-sde os=-elf ;; sei) basic_machine=mips-sei os=-seiux ;; sequent) basic_machine=i386-sequent ;; sh5el) basic_machine=sh5le-unknown ;; simso-wrs) basic_machine=sparclite-wrs os=-vxworks ;; sps7) basic_machine=m68k-bull os=-sysv2 ;; spur) basic_machine=spur-unknown ;; st2000) basic_machine=m68k-tandem ;; stratus) basic_machine=i860-stratus os=-sysv4 ;; strongarm-* | thumb-*) basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; sun2) basic_machine=m68000-sun ;; sun2os3) basic_machine=m68000-sun os=-sunos3 ;; sun2os4) basic_machine=m68000-sun os=-sunos4 ;; sun3os3) basic_machine=m68k-sun os=-sunos3 ;; sun3os4) basic_machine=m68k-sun os=-sunos4 ;; sun4os3) basic_machine=sparc-sun os=-sunos3 ;; sun4os4) basic_machine=sparc-sun os=-sunos4 ;; sun4sol2) basic_machine=sparc-sun os=-solaris2 ;; sun3 | sun3-*) basic_machine=m68k-sun ;; sun4) basic_machine=sparc-sun ;; sun386 | sun386i | roadrunner) basic_machine=i386-sun ;; sv1) basic_machine=sv1-cray os=-unicos ;; symmetry) basic_machine=i386-sequent os=-dynix ;; t3e) basic_machine=alphaev5-cray os=-unicos ;; t90) basic_machine=t90-cray os=-unicos ;; tile*) basic_machine=$basic_machine-unknown os=-linux-gnu ;; tx39) basic_machine=mipstx39-unknown ;; tx39el) basic_machine=mipstx39el-unknown ;; toad1) basic_machine=pdp10-xkl os=-tops20 ;; tower | tower-32) basic_machine=m68k-ncr ;; tpf) basic_machine=s390x-ibm os=-tpf ;; udi29k) basic_machine=a29k-amd os=-udi ;; ultra3) basic_machine=a29k-nyu os=-sym1 ;; v810 | necv810) basic_machine=v810-nec os=-none ;; vaxv) basic_machine=vax-dec os=-sysv ;; vms) basic_machine=vax-dec os=-vms ;; vpp*|vx|vx-*) basic_machine=f301-fujitsu ;; vxworks960) basic_machine=i960-wrs os=-vxworks ;; vxworks68) basic_machine=m68k-wrs os=-vxworks ;; vxworks29k) basic_machine=a29k-wrs os=-vxworks ;; w65*) basic_machine=w65-wdc os=-none ;; w89k-*) basic_machine=hppa1.1-winbond os=-proelf ;; x64) basic_machine=x86_64-pc ;; xbox) basic_machine=i686-pc os=-mingw32 ;; xps | xps100) basic_machine=xps100-honeywell ;; xscale-* | xscalee[bl]-*) basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'` ;; ymp) basic_machine=ymp-cray os=-unicos ;; none) basic_machine=none-none os=-none ;; # Here we handle the default manufacturer of certain CPU types. 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See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try '$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by 'PROGRAMS ARGS'. object Object file output by 'PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputting dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac # Get the directory component of the given path, and save it in the # global variables '$dir'. Note that this directory component will # be either empty or ending with a '/' character. This is deliberate. set_dir_from () { case $1 in */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; *) dir=;; esac } # Get the suffix-stripped basename of the given path, and save it the # global variable '$base'. set_base_from () { base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` } # If no dependency file was actually created by the compiler invocation, # we still have to create a dummy depfile, to avoid errors with the # Makefile "include basename.Plo" scheme. make_dummy_depfile () { echo "#dummy" > "$depfile" } # Factor out some common post-processing of the generated depfile. # Requires the auxiliary global variable '$tmpdepfile' to be set. aix_post_process_depfile () { # If the compiler actually managed to produce a dependency file, # post-process it. if test -f "$tmpdepfile"; then # Each line is of the form 'foo.o: dependency.h'. # Do two passes, one to just change these to # $object: dependency.h # and one to simply output # dependency.h: # which is needed to avoid the deleted-header problem. { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" } > "$depfile" rm -f "$tmpdepfile" else make_dummy_depfile fi } # A tabulation character. tab=' ' # A newline character. nl=' ' # Character ranges might be problematic outside the C locale. # These definitions help. upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ lower=abcdefghijklmnopqrstuvwxyz digits=0123456789 alpha=${upper}${lower} if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Avoid interferences from the environment. gccflag= dashmflag= # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. Note that we *cannot* use a case # here, because this file can only contain one case statement. if test "$depmode" = hp; then # HP compiler uses -M and no extra arg. gccflag=-M depmode=gcc fi if test "$depmode" = dashXmstdout; then # This is just like dashmstdout with a different argument. dashmflag=-xM depmode=dashmstdout fi cygpath_u="cygpath -u -f -" if test "$depmode" = msvcmsys; then # This is just like msvisualcpp but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvisualcpp fi if test "$depmode" = msvc7msys; then # This is just like msvc7 but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvc7 fi if test "$depmode" = xlc; then # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. gccflag=-qmakedep=gcc,-MF depmode=gcc fi case "$depmode" in gcc3) ## gcc 3 implements dependency tracking that does exactly what ## we want. Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. ## Unfortunately, FreeBSD c89 acceptance of flags depends upon ## the command line argument order; so add the flags where they ## appear in depend2.am. Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. ## (see the conditional assignment to $gccflag above). ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. Having to rename by hand is ugly. ## (We might end up doing this anyway to support other compilers.) ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like ## -MM, not -M (despite what the docs say). Also, it might not be ## supported by the other compilers which use the 'gcc' depmode. ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then gccflag=-MD, fi "$@" -Wp,"$gccflag$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" echo "$object : \\" > "$depfile" # The second -e expression handles DOS-style file names with drive # letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. ## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; sgi) if test "$libtool" = yes; then "$@" "-Wp,-MDupdate,$tmpdepfile" else "$@" -MDupdate "$tmpdepfile" fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files echo "$object : \\" > "$depfile" # Clip off the initial element (the dependent). Don't try to be # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; # the IRIX cc adds comments like '#:fec' to the end of the # dependency line. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ | tr "$nl" ' ' >> "$depfile" echo >> "$depfile" # The second pass generates a dummy entry for each header file. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" ;; xlc) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the # current directory. Also, the AIX compiler puts '$object:' at the # start of each line; $object doesn't have directory information. # Version 6 uses the directory in both cases. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.u tmpdepfile2=$base.u tmpdepfile3=$dir.libs/$base.u "$@" -Wc,-M else tmpdepfile1=$dir$base.u tmpdepfile2=$dir$base.u tmpdepfile3=$dir$base.u "$@" -M fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" do test -f "$tmpdepfile" && break done aix_post_process_depfile ;; tcc) # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 # FIXME: That version still under development at the moment of writing. # Make that this statement remains true also for stable, released # versions. # It will wrap lines (doesn't matter whether long or short) with a # trailing '\', as in: # # foo.o : \ # foo.c \ # foo.h \ # # It will put a trailing '\' even on the last line, and will use leading # spaces rather than leading tabs (at least since its commit 0394caf7 # "Emit spaces for -MD"). "$@" -MD -MF "$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. # We have to change lines of the first kind to '$object: \'. sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" # And for each line of the second kind, we have to emit a 'dep.h:' # dummy dependency, to avoid the deleted-header problem. sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" rm -f "$tmpdepfile" ;; ## The order of this option in the case statement is important, since the ## shell code in configure will try each of these formats in the order ## listed in this file. A plain '-MD' option would be understood by many ## compilers, so we must ensure this comes after the gcc and icc options. pgcc) # Portland's C compiler understands '-MD'. # Will always output deps to 'file.d' where file is the root name of the # source file under compilation, even if file resides in a subdirectory. # The object file name does not affect the name of the '.d' file. # pgcc 10.2 will output # foo.o: sub/foo.c sub/foo.h # and will wrap long lines using '\' : # foo.o: sub/foo.c ... \ # sub/foo.h ... \ # ... set_dir_from "$object" # Use the source, not the object, to determine the base name, since # that's sadly what pgcc will do too. set_base_from "$source" tmpdepfile=$base.d # For projects that build the same source file twice into different object # files, the pgcc approach of using the *source* file root name can cause # problems in parallel builds. Use a locking strategy to avoid stomping on # the same $tmpdepfile. lockdir=$base.d-lock trap " echo '$0: caught signal, cleaning up...' >&2 rmdir '$lockdir' exit 1 " 1 2 13 15 numtries=100 i=$numtries while test $i -gt 0; do # mkdir is a portable test-and-set. if mkdir "$lockdir" 2>/dev/null; then # This process acquired the lock. 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There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # GNU Libtool is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of of the License, or # (at your option) any later version. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program or library that is built # using GNU Libtool, you may include this file under the same # distribution terms that you use for the rest of that program. # # GNU Libtool is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. 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We know it's impossible # because TPF is a cross-compiler, and we know how we open DSOs. lt_cv_dlopen=dlopen lt_cv_dlopen_libs= lt_cv_dlopen_self=no ;; *) AC_CHECK_FUNC([shl_load], [lt_cv_dlopen=shl_load], [AC_CHECK_LIB([dld], [shl_load], [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld], [AC_CHECK_FUNC([dlopen], [lt_cv_dlopen=dlopen], [AC_CHECK_LIB([dl], [dlopen], [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl], [AC_CHECK_LIB([svld], [dlopen], [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld], [AC_CHECK_LIB([dld], [dld_link], [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld]) ]) ]) ]) ]) ]) ;; esac if test no = "$lt_cv_dlopen"; then enable_dlopen=no else enable_dlopen=yes fi case $lt_cv_dlopen in dlopen) save_CPPFLAGS=$CPPFLAGS test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" save_LDFLAGS=$LDFLAGS wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" save_LIBS=$LIBS LIBS="$lt_cv_dlopen_libs $LIBS" AC_CACHE_CHECK([whether a program can dlopen itself], lt_cv_dlopen_self, [dnl _LT_TRY_DLOPEN_SELF( lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) ]) if test yes = "$lt_cv_dlopen_self"; then wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" AC_CACHE_CHECK([whether a statically linked program can dlopen itself], lt_cv_dlopen_self_static, [dnl _LT_TRY_DLOPEN_SELF( lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) ]) fi CPPFLAGS=$save_CPPFLAGS LDFLAGS=$save_LDFLAGS LIBS=$save_LIBS ;; esac case $lt_cv_dlopen_self in yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; *) enable_dlopen_self=unknown ;; esac case $lt_cv_dlopen_self_static in yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; *) enable_dlopen_self_static=unknown ;; esac fi _LT_DECL([dlopen_support], [enable_dlopen], [0], [Whether dlopen is supported]) _LT_DECL([dlopen_self], [enable_dlopen_self], [0], [Whether dlopen of programs is supported]) _LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], [Whether dlopen of statically linked programs is supported]) ])# LT_SYS_DLOPEN_SELF # Old name: AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) # _LT_COMPILER_C_O([TAGNAME]) # --------------------------- # Check to see if options -c and -o are simultaneously supported by compiler. # This macro does not hard code the compiler like AC_PROG_CC_C_O. m4_defun([_LT_COMPILER_C_O], [m4_require([_LT_DECL_SED])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl m4_require([_LT_TAG_COMPILER])dnl AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no $RM -r conftest 2>/dev/null mkdir conftest cd conftest mkdir out echo "$lt_simple_compile_test_code" > conftest.$ac_ext lt_compiler_flag="-o out/conftest2.$ac_objext" # Insert the option either (1) after the last *FLAGS variable, or # (2) before a word containing "conftest.", or (3) at the end. # Note that $ac_compile itself does not contain backslashes and begins # with a dollar sign (not a hyphen), so the echo should work correctly. lt_compile=`echo "$ac_compile" | $SED \ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) (eval "$lt_compile" 2>out/conftest.err) ac_status=$? cat out/conftest.err >&AS_MESSAGE_LOG_FD echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD if (exit $ac_status) && test -s out/conftest2.$ac_objext then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes fi fi chmod u+w . 2>&AS_MESSAGE_LOG_FD $RM conftest* # SGI C++ compiler will create directory out/ii_files/ for # template instantiation test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files $RM out/* && rmdir out cd .. $RM -r conftest $RM conftest* ]) _LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], [Does compiler simultaneously support -c and -o options?]) ])# _LT_COMPILER_C_O # _LT_COMPILER_FILE_LOCKS([TAGNAME]) # ---------------------------------- # Check to see if we can do hard links to lock some files if needed m4_defun([_LT_COMPILER_FILE_LOCKS], [m4_require([_LT_ENABLE_LOCK])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl _LT_COMPILER_C_O([$1]) hard_links=nottested if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then # do not overwrite the value of need_locks provided by the user AC_MSG_CHECKING([if we can lock with hard links]) hard_links=yes $RM conftest* ln conftest.a conftest.b 2>/dev/null && hard_links=no touch conftest.a ln conftest.a conftest.b 2>&5 || hard_links=no ln conftest.a conftest.b 2>/dev/null && hard_links=no AC_MSG_RESULT([$hard_links]) if test no = "$hard_links"; then AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe]) need_locks=warn fi else need_locks=no fi _LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) ])# _LT_COMPILER_FILE_LOCKS # _LT_CHECK_OBJDIR # ---------------- m4_defun([_LT_CHECK_OBJDIR], [AC_CACHE_CHECK([for objdir], [lt_cv_objdir], [rm -f .libs 2>/dev/null mkdir .libs 2>/dev/null if test -d .libs; then lt_cv_objdir=.libs else # MS-DOS does not allow filenames that begin with a dot. lt_cv_objdir=_libs fi rmdir .libs 2>/dev/null]) objdir=$lt_cv_objdir _LT_DECL([], [objdir], [0], [The name of the directory that contains temporary libtool files])dnl m4_pattern_allow([LT_OBJDIR])dnl AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/", [Define to the sub-directory where libtool stores uninstalled libraries.]) ])# _LT_CHECK_OBJDIR # _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) # -------------------------------------- # Check hardcoding attributes. m4_defun([_LT_LINKER_HARDCODE_LIBPATH], [AC_MSG_CHECKING([how to hardcode library paths into programs]) _LT_TAGVAR(hardcode_action, $1)= if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || test -n "$_LT_TAGVAR(runpath_var, $1)" || test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then # We can hardcode non-existent directories. if test no != "$_LT_TAGVAR(hardcode_direct, $1)" && # If the only mechanism to avoid hardcoding is shlibpath_var, we # have to relink, otherwise we might link with an installed library # when we should be linking with a yet-to-be-installed one ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" && test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then # Linking always hardcodes the temporary library directory. _LT_TAGVAR(hardcode_action, $1)=relink else # We can link without hardcoding, and we can hardcode nonexisting dirs. _LT_TAGVAR(hardcode_action, $1)=immediate fi else # We cannot hardcode anything, or else we can only hardcode existing # directories. _LT_TAGVAR(hardcode_action, $1)=unsupported fi AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) if test relink = "$_LT_TAGVAR(hardcode_action, $1)" || test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then # Fast installation is not supported enable_fast_install=no elif test yes = "$shlibpath_overrides_runpath" || test no = "$enable_shared"; then # Fast installation is not necessary enable_fast_install=needless fi _LT_TAGDECL([], [hardcode_action], [0], [How to hardcode a shared library path into an executable]) ])# _LT_LINKER_HARDCODE_LIBPATH # _LT_CMD_STRIPLIB # ---------------- m4_defun([_LT_CMD_STRIPLIB], [m4_require([_LT_DECL_EGREP]) striplib= old_striplib= AC_MSG_CHECKING([whether stripping libraries is possible]) if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" test -z "$striplib" && striplib="$STRIP --strip-unneeded" AC_MSG_RESULT([yes]) else # FIXME - insert some real tests, host_os isn't really good enough case $host_os in darwin*) if test -n "$STRIP"; then striplib="$STRIP -x" old_striplib="$STRIP -S" AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi ;; *) AC_MSG_RESULT([no]) ;; esac fi _LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) _LT_DECL([], [striplib], [1]) ])# _LT_CMD_STRIPLIB # _LT_PREPARE_MUNGE_PATH_LIST # --------------------------- # Make sure func_munge_path_list() is defined correctly. m4_defun([_LT_PREPARE_MUNGE_PATH_LIST], [[# func_munge_path_list VARIABLE PATH # ----------------------------------- # VARIABLE is name of variable containing _space_ separated list of # directories to be munged by the contents of PATH, which is string # having a format: # "DIR[:DIR]:" # string "DIR[ DIR]" will be prepended to VARIABLE # ":DIR[:DIR]" # string "DIR[ DIR]" will be appended to VARIABLE # "DIRP[:DIRP]::[DIRA:]DIRA" # string "DIRP[ DIRP]" will be prepended to VARIABLE and string # "DIRA[ DIRA]" will be appended to VARIABLE # "DIR[:DIR]" # VARIABLE will be replaced by "DIR[ DIR]" func_munge_path_list () { case x@S|@2 in x) ;; *:) eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\" ;; x:*) eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\" ;; *::*) eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\" ;; *) eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\" ;; esac } ]])# _LT_PREPARE_PATH_LIST # _LT_SYS_DYNAMIC_LINKER([TAG]) # ----------------------------- # PORTME Fill in your ld.so characteristics m4_defun([_LT_SYS_DYNAMIC_LINKER], [AC_REQUIRE([AC_CANONICAL_HOST])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl m4_require([_LT_DECL_OBJDUMP])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_CHECK_SHELL_FEATURES])dnl m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl AC_MSG_CHECKING([dynamic linker characteristics]) m4_if([$1], [], [ if test yes = "$GCC"; then case $host_os in darwin*) lt_awk_arg='/^libraries:/,/LR/' ;; *) lt_awk_arg='/^libraries:/' ;; esac case $host_os in mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;; *) lt_sed_strip_eq='s|=/|/|g' ;; esac lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` case $lt_search_path_spec in *\;*) # if the path contains ";" then we assume it to be the separator # otherwise default to the standard path separator (i.e. ":") - it is # assumed that no part of a normal pathname contains ";" but that should # okay in the real world where ";" in dirpaths is itself problematic. lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` ;; *) lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` ;; esac # Ok, now we have the path, separated by spaces, we can step through it # and add multilib dir if necessary... lt_tmp_lt_search_path_spec= lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` # ...but if some path component already ends with the multilib dir we assume # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer). case "$lt_multi_os_dir; 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then # AIX 5 supports IA64 library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext' shlibpath_var=LD_LIBRARY_PATH else # With GCC up to 2.95.x, collect2 would create an import file # for dependence libraries. 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Also, we use the # versioned .so libs for executables only if there is the -brtl # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. # To allow for filename-based versioning support, we need to create # libNAME.so.V as an archive file, containing: # *) an Import File, referring to the versioned filename of the # archive as well as the shared archive member, telling the # bitwidth (32 or 64) of that shared object, and providing the # list of exported symbols of that shared object, eventually # decorated with the 'weak' keyword # *) the shared object with the F_LOADONLY flag set, to really avoid # it being seen by the linker. # At run time we better use the real file rather than another symlink, # but for link time we create the symlink libNAME.so -> libNAME.so.V case $with_aix_soname,$aix_use_runtimelinking in # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct # soname into executable. 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esac shlibpath_var=LIBPATH fi ;; amigaos*) case $host_cpu in powerpc) # Since July 2007 AmigaOS4 officially supports .so libraries. # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; m68k) library_names_spec='$libname.ixlibrary $libname.a' # Create ${libname}_ixlibrary.a entries in /sys/libs. finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' ;; esac ;; beos*) library_names_spec='$libname$shared_ext' dynamic_linker="$host_os ld.so" shlibpath_var=LIBRARY_PATH ;; bsdi[[45]]*) version_type=linux # correct to gnu/linux during the next big refactor need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' shlibpath_var=LD_LIBRARY_PATH sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" # the default ld.so.conf also contains /usr/contrib/lib and # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow # libtool to hard-code these into programs ;; cygwin* | mingw* | pw32* | cegcc*) version_type=windows shrext_cmds=.dll need_version=no need_lib_prefix=no case $GCC,$cc_basename in yes,*) # gcc library_names_spec='$libname.dll.a' # DLL is installed to $(libdir)/../bin by postinstall_cmds postinstall_cmds='base_file=`basename \$file`~ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ dldir=$destdir/`dirname \$dlpath`~ test -d \$dldir || mkdir -p \$dldir~ $install_prog $dir/$dlname \$dldir/$dlname~ chmod a+x \$dldir/$dlname~ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; fi' postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ dlpath=$dir/\$dldll~ $RM \$dlpath' shlibpath_overrides_runpath=yes case $host_os in cygwin*) # Cygwin DLLs use 'cyg' prefix rather than 'lib' soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' m4_if([$1], [],[ sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"]) ;; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" sys_lib_dlsearch_path_spec=/usr/lib/hpux32 else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" sys_lib_dlsearch_path_spec=/usr/lib/hpux64 fi ;; hppa*64*) shrext_cmds='.sl' hardcode_into_libs=yes dynamic_linker="$host_os dld.sl" shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec ;; *) shrext_cmds='.sl' dynamic_linker="$host_os dld.sl" shlibpath_var=SHLIB_PATH shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' ;; esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[[3-9]]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no # Some binutils ld are patched to set DT_RUNPATH AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], [lt_cv_shlibpath_overrides_runpath=no save_LDFLAGS=$LDFLAGS save_libdir=$libdir eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], [lt_cv_shlibpath_overrides_runpath=yes])]) LDFLAGS=$save_LDFLAGS libdir=$save_libdir ]) shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes # Ideally, we could use ldconfig to report *all* directores which are # searched for libraries, however this is still not possible. 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newsos6) version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; *nto* | *qnx*) version_type=qnx need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes dynamic_linker='ldqnx.so' ;; openbsd* | bitrig*) version_type=sunos sys_lib_dlsearch_path_spec=/usr/lib need_lib_prefix=no if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then need_version=no else need_version=yes fi library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; os2*) libname_spec='$name' version_type=windows shrext_cmds=.dll need_version=no need_lib_prefix=no # OS/2 can only load a DLL with a base name of 8 characters or less. soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; v=$($ECHO $release$versuffix | tr -d .-); n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); $ECHO $n$v`$shared_ext' library_names_spec='${libname}_dll.$libext' dynamic_linker='OS/2 ld.exe' shlibpath_var=BEGINLIBPATH sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec postinstall_cmds='base_file=`basename \$file`~ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ dldir=$destdir/`dirname \$dlpath`~ test -d \$dldir || mkdir -p \$dldir~ $install_prog $dir/$dlname \$dldir/$dlname~ chmod a+x \$dldir/$dlname~ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; fi' postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; 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sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; os2*) lt_cv_deplibs_check_method=pass_all ;; esac ]) file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown _LT_DECL([], [deplibs_check_method], [1], [Method to check whether dependent libraries are shared objects]) _LT_DECL([], [file_magic_cmd], [1], [Command to use when deplibs_check_method = "file_magic"]) _LT_DECL([], [file_magic_glob], [1], [How to find potential files when deplibs_check_method = "file_magic"]) _LT_DECL([], [want_nocaseglob], [1], [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) ])# _LT_CHECK_MAGIC_METHOD # LT_PATH_NM # ---------- # find the pathname to a BSD- or MS-compatible name lister AC_DEFUN([LT_PATH_NM], [AC_REQUIRE([AC_PROG_CC])dnl AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, [if test -n "$NM"; then # Let the user override the test. lt_cv_path_NM=$NM else lt_nm_to_check=${ac_tool_prefix}nm if test -n "$ac_tool_prefix" && test "$build" = "$host"; then lt_nm_to_check="$lt_nm_to_check nm" fi for lt_tmp_nm in $lt_nm_to_check; do lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do IFS=$lt_save_ifs test -z "$ac_dir" && ac_dir=. tmp_nm=$ac_dir/$lt_tmp_nm if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then # Check to see if the nm accepts a BSD-compat flag. # Adding the 'sed 1q' prevents false positives on HP-UX, which says: # nm: unknown option "B" ignored # Tru64's nm complains that /dev/null is an invalid object file # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty case $build_os in mingw*) lt_bad_file=conftest.nm/nofile ;; *) lt_bad_file=/dev/null ;; esac case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in *$lt_bad_file* | *'Invalid file or object type'*) lt_cv_path_NM="$tmp_nm -B" break 2 ;; *) case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in */dev/null*) lt_cv_path_NM="$tmp_nm -p" break 2 ;; *) lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but continue # so that we can try to find one that supports BSD flags ;; esac ;; esac fi done IFS=$lt_save_ifs done : ${lt_cv_path_NM=no} fi]) if test no != "$lt_cv_path_NM"; then NM=$lt_cv_path_NM else # Didn't find any BSD compatible name lister, look for dumpbin. if test -n "$DUMPBIN"; then : # Let the user override the test. else AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in *COFF*) DUMPBIN="$DUMPBIN -symbols -headers" ;; *) DUMPBIN=: ;; esac fi AC_SUBST([DUMPBIN]) if test : != "$DUMPBIN"; then NM=$DUMPBIN fi fi test -z "$NM" && NM=nm AC_SUBST([NM]) _LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], [lt_cv_nm_interface="BSD nm" echo "int some_variable = 0;" > conftest.$ac_ext (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) (eval "$ac_compile" 2>conftest.err) cat conftest.err >&AS_MESSAGE_LOG_FD (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) cat conftest.err >&AS_MESSAGE_LOG_FD (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) cat conftest.out >&AS_MESSAGE_LOG_FD if $GREP 'External.*some_variable' conftest.out > /dev/null; then lt_cv_nm_interface="MS dumpbin" fi rm -f conftest*]) ])# LT_PATH_NM # Old names: AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_PROG_NM], []) dnl AC_DEFUN([AC_PROG_NM], []) # _LT_CHECK_SHAREDLIB_FROM_LINKLIB # -------------------------------- # how to determine the name of the shared library # associated with a specific link library. # -- PORTME fill in with the dynamic library characteristics m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], [m4_require([_LT_DECL_EGREP]) m4_require([_LT_DECL_OBJDUMP]) m4_require([_LT_DECL_DLLTOOL]) AC_CACHE_CHECK([how to associate runtime and link libraries], lt_cv_sharedlib_from_linklib_cmd, [lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh; # decide which one to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd=$ECHO ;; esac ]) sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO _LT_DECL([], [sharedlib_from_linklib_cmd], [1], [Command to associate shared and link libraries]) ])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB # _LT_PATH_MANIFEST_TOOL # ---------------------- # locate the manifest tool m4_defun([_LT_PATH_MANIFEST_TOOL], [AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], [lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&AS_MESSAGE_LOG_FD if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest*]) if test yes != "$lt_cv_path_mainfest_tool"; then MANIFEST_TOOL=: fi _LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl ])# _LT_PATH_MANIFEST_TOOL # _LT_DLL_DEF_P([FILE]) # --------------------- # True iff FILE is a Windows DLL '.def' file. # Keep in sync with func_dll_def_p in the libtool script AC_DEFUN([_LT_DLL_DEF_P], [dnl test DEF = "`$SED -n dnl -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl -e q dnl Only consider the first "real" line $1`" dnl ])# _LT_DLL_DEF_P # LT_LIB_M # -------- # check for math library AC_DEFUN([LT_LIB_M], [AC_REQUIRE([AC_CANONICAL_HOST])dnl LIBM= case $host in *-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) # These system don't have libm, or don't need it ;; *-ncr-sysv4.3*) AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw) AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") ;; *) AC_CHECK_LIB(m, cos, LIBM=-lm) ;; esac AC_SUBST([LIBM]) ])# LT_LIB_M # Old name: AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_CHECK_LIBM], []) # _LT_COMPILER_NO_RTTI([TAGNAME]) # ------------------------------- m4_defun([_LT_COMPILER_NO_RTTI], [m4_require([_LT_TAG_COMPILER])dnl _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= if test yes = "$GCC"; then case $cc_basename in nvcc*) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; *) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; esac _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], lt_cv_prog_compiler_rtti_exceptions, [-fno-rtti -fno-exceptions], [], [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) fi _LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], [Compiler flag to turn off builtin functions]) ])# _LT_COMPILER_NO_RTTI # _LT_CMD_GLOBAL_SYMBOLS # ---------------------- m4_defun([_LT_CMD_GLOBAL_SYMBOLS], [AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_REQUIRE([AC_PROG_CC])dnl AC_REQUIRE([AC_PROG_AWK])dnl AC_REQUIRE([LT_PATH_NM])dnl AC_REQUIRE([LT_PATH_LD])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_TAG_COMPILER])dnl # Check for command to grab the raw symbol name followed by C symbol from nm. AC_MSG_CHECKING([command to parse $NM output from $compiler object]) AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], [ # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[[BCDEGRST]]' # Regexp to match symbols that can be accessed directly from C. sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[[BCDT]]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[[ABCDGISTW]]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[[ABCDEGRST]]' fi ;; irix* | nonstopux*) symcode='[[BCDEGRST]]' ;; osf*) symcode='[[BCDEGQRST]]' ;; solaris*) symcode='[[BDRT]]' ;; sco3.2v5*) symcode='[[DT]]' ;; sysv4.2uw2*) symcode='[[DT]]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[[ABDT]]' ;; sysv4) symcode='[[DFNSTU]]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[[ABCDGIRSTW]]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK ['"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx]" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if AC_TRY_EVAL(ac_compile); then # Now try to grab the symbols. nlist=conftest.nm if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT@&t@_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT@&t@_DLSYM_CONST #else # define LT@&t@_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT@&t@_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[[]] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD fi else echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done ]) if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then AC_MSG_RESULT(failed) else AC_MSG_RESULT(ok) fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then nm_file_list_spec='@' fi _LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], [Take the output of nm and produce a listing of raw symbols and C names]) _LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], [Transform the output of nm in a proper C declaration]) _LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], [Transform the output of nm into a list of symbols to manually relocate]) _LT_DECL([global_symbol_to_c_name_address], [lt_cv_sys_global_symbol_to_c_name_address], [1], [Transform the output of nm in a C name address pair]) _LT_DECL([global_symbol_to_c_name_address_lib_prefix], [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], [Transform the output of nm in a C name address pair when lib prefix is needed]) _LT_DECL([nm_interface], [lt_cv_nm_interface], [1], [The name lister interface]) _LT_DECL([], [nm_file_list_spec], [1], [Specify filename containing input files for $NM]) ]) # _LT_CMD_GLOBAL_SYMBOLS # _LT_COMPILER_PIC([TAGNAME]) # --------------------------- m4_defun([_LT_COMPILER_PIC], [m4_require([_LT_TAG_COMPILER])dnl _LT_TAGVAR(lt_prog_compiler_wl, $1)= _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)= m4_if([$1], [CXX], [ # C++ specific cases for pic, static, wl, etc. if test yes = "$GXX"; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the '-m68020' flag to GCC prevents building anything better, # like '-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; *djgpp*) # DJGPP does not support shared libraries at all _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac else case $host_os in aix[[4-9]]*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; chorus*) case $cc_basename in cxch68*) # Green Hills C++ Compiler # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" ;; esac ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) ;; dgux*) case $cc_basename in ec++*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; ghcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; freebsd* | dragonfly*) # FreeBSD uses GNU C++ ;; hpux9* | hpux10* | hpux11*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' if test ia64 != "$host_cpu"; then _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' fi ;; aCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac ;; *) ;; esac ;; interix*) # This is c89, which is MS Visual C++ (no shared libs) # Anyone wants to do a port? ;; irix5* | irix6* | nonstopux*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' # CC pic flag -KPIC is the default. ;; *) ;; esac ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in KCC*) # KAI C++ Compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; ecpc* ) # old Intel C++ for x86_64, which still supported -KPIC. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; icpc* ) # Intel C++, used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; pgCC* | pgcpp*) # Portland Group C++ compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; cxx*) # Compaq C++ # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL 8.0, 9.0 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*) # Sun C++ 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; esac ;; esac ;; lynxos*) ;; m88k*) ;; mvs*) case $cc_basename in cxx*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' ;; *) ;; esac ;; netbsd* | netbsdelf*-gnu) ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; osf3* | osf4* | osf5*) case $cc_basename in KCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' ;; RCC*) # Rational C++ 2.4.1 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; cxx*) # Digital/Compaq C++ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; *) ;; esac ;; psos*) ;; solaris*) case $cc_basename in CC* | sunCC*) # Sun C++ 4.2, 5.x and Centerline C++ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; gcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' ;; *) ;; esac ;; sunos4*) case $cc_basename in CC*) # Sun C++ 4.x _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; lcc*) # Lucid _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; tandem*) case $cc_basename in NCC*) # NonStop-UX NCC 3.20 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; *) ;; esac ;; vxworks*) ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ], [ if test yes = "$GCC"; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the '-m68020' flag to GCC prevents building anything better, # like '-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; msdosdjgpp*) # Just because we use GCC doesn't mean we suddenly get shared libraries # on systems that don't support them. _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no enable_shared=no ;; *nto* | *qnx*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac case $cc_basename in nvcc*) # Cuda Compiler Driver 2.2 _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" fi ;; esac else # PORTME Check for flag to pass linker flags through the system compiler. case $host_os in aix*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' case $cc_basename in nagfor*) # NAG Fortran compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; hpux9* | hpux10* | hpux11*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but # not for PA HP-UX. case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac # Is there a better lt_prog_compiler_static that works with the bundled CC? _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' ;; irix5* | irix6* | nonstopux*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC (with -KPIC) is the default. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in # old Intel for x86_64, which still supported -KPIC. ecc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # icc used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. icc* | ifort*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # Lahey Fortran 8.1. lf95*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' ;; nagfor*) # NAG Fortran compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; tcc*) # Fabrice Bellard et al's Tiny C Compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) # Portland Group compilers (*not* the Pentium gcc compiler, # which looks to be a dead project) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; ccc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # All Alpha code is PIC. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xl* | bgxl* | bgf* | mpixl*) # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) # Sun Fortran 8.3 passes all unrecognized flags to the linker _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='' ;; *Sun\ F* | *Sun*Fortran*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; *Sun\ C*) # Sun C 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' ;; *Intel*\ [[CF]]*Compiler*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; *Portland\ Group*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; esac ;; newsos6) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; *nto* | *qnx*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; osf3* | osf4* | osf5*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # All OSF/1 code is PIC. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; rdos*) _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; solaris*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' case $cc_basename in f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; *) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; esac ;; sunos4*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; sysv4 | sysv4.2uw2* | sysv4.3*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; unicos*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; uts4*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ]) case $host_os in # For platforms that do not support PIC, -DPIC is meaningless: *djgpp*) _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" ;; esac AC_CACHE_CHECK([for $compiler option to produce PIC], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) _LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) # # Check to make sure the PIC flag actually works. # if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; 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The following line is correct: shared_flag='-G' else if test yes = "$aix_use_runtimelinking"; then shared_flag='$wl-G' else shared_flag='$wl-bM:SRE' fi shared_flag_aix='$wl-bM:SRE' shared_flag_svr4='$wl-G' fi fi _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' # It seems that -bexpall does not export symbols beginning with # underscore (_), so it is better to generate a list of symbols to export. _LT_TAGVAR(always_export_symbols, $1)=yes if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then # Warning - without using the other runtime loading flags (-brtl), # -berok will link without error, but may produce a broken library. _LT_TAGVAR(allow_undefined_flag, $1)='-berok' # Determine the default libpath from the value encoded in an # empty executable. _LT_SYS_MODULE_PATH_AIX([$1]) _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag else if test ia64 = "$host_cpu"; then _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" else # Determine the default libpath from the value encoded in an # empty executable. _LT_SYS_MODULE_PATH_AIX([$1]) _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" # Warning - without using the other run time loading flags, # -berok will link without error, but may produce a broken library. _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' if test yes = "$with_gnu_ld"; then # We only use this code for GNU lds that support --whole-archive. _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' else # Exported symbols can be pulled into shared objects from archives _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' fi _LT_TAGVAR(archive_cmds_need_lc, $1)=yes _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' # -brtl affects multiple linker settings, -berok does not and is overridden later compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' if test svr4 != "$with_aix_soname"; then # This is similar to how AIX traditionally builds its shared libraries. _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' fi if test aix != "$with_aix_soname"; then _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! 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Future versions do this automatically, but an explicit c++rt0.o # does not break anything, and helps significantly (at the cost of a little # extra space). freebsd2.2*) _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' _LT_TAGVAR(hardcode_direct, $1)=yes _LT_TAGVAR(hardcode_shlibpath_var, $1)=no ;; # Unfortunately, older versions of FreeBSD 2 do not have this feature. freebsd2.*) _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' _LT_TAGVAR(hardcode_direct, $1)=yes _LT_TAGVAR(hardcode_minus_L, $1)=yes _LT_TAGVAR(hardcode_shlibpath_var, $1)=no ;; # FreeBSD 3 and greater uses gcc -shared to do shared libraries. freebsd* | dragonfly*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' _LT_TAGVAR(hardcode_direct, $1)=yes _LT_TAGVAR(hardcode_shlibpath_var, $1)=no ;; hpux9*) if test yes = "$GCC"; then _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' else _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' fi _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: _LT_TAGVAR(hardcode_direct, $1)=yes # hardcode_minus_L: Not really in the search PATH, # but as the default location of the library. _LT_TAGVAR(hardcode_minus_L, $1)=yes _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' ;; hpux10*) if test yes,no = "$GCC,$with_gnu_ld"; then _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' else _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' fi if test no = "$with_gnu_ld"; then _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: _LT_TAGVAR(hardcode_direct, $1)=yes _LT_TAGVAR(hardcode_direct_absolute, $1)=yes _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' # hardcode_minus_L: Not really in the search PATH, # but as the default location of the library. _LT_TAGVAR(hardcode_minus_L, $1)=yes fi ;; hpux11*) if test yes,no = "$GCC,$with_gnu_ld"; then case $host_cpu in hppa*64*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' ;; ia64*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' ;; *) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;; esac else case $host_cpu in hppa*64*) _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' ;; ia64*) _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' ;; *) m4_if($1, [], [ # Older versions of the 11.00 compiler do not understand -b yet # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) _LT_LINKER_OPTION([if $CC understands -b], _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b], [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'], [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])], [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags']) ;; esac fi if test no = "$with_gnu_ld"; then _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: case $host_cpu in hppa*64*|ia64*) _LT_TAGVAR(hardcode_direct, $1)=no _LT_TAGVAR(hardcode_shlibpath_var, $1)=no ;; *) _LT_TAGVAR(hardcode_direct, $1)=yes _LT_TAGVAR(hardcode_direct_absolute, $1)=yes _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' # hardcode_minus_L: Not really in the search PATH, # but as the default location of the library. _LT_TAGVAR(hardcode_minus_L, $1)=yes ;; esac fi ;; irix5* | irix6* | nonstopux*) if test yes = "$GCC"; then _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' # Try to use the -exported_symbol ld option, if it does not # work, assume that -exports_file does not work either and # implicitly export all symbols. # This should be the same for all languages, so no per-tag cache variable. AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol], [lt_cv_irix_exported_symbol], [save_LDFLAGS=$LDFLAGS LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null" AC_LINK_IFELSE( [AC_LANG_SOURCE( [AC_LANG_CASE([C], [[int foo (void) { return 0; }]], [C++], [[int foo (void) { return 0; }]], [Fortran 77], [[ subroutine foo end]], [Fortran], [[ subroutine foo end]])])], [lt_cv_irix_exported_symbol=yes], [lt_cv_irix_exported_symbol=no]) LDFLAGS=$save_LDFLAGS]) if test yes = "$lt_cv_irix_exported_symbol"; then _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib' fi _LT_TAGVAR(link_all_deplibs, $1)=no else _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib' fi _LT_TAGVAR(archive_cmds_need_lc, $1)='no' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: _LT_TAGVAR(inherit_rpath, $1)=yes _LT_TAGVAR(link_all_deplibs, $1)=yes ;; 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then _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' else _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' fi else _LT_TAGVAR(ld_shlibs, $1)=no fi ;; os2*) _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' _LT_TAGVAR(hardcode_minus_L, $1)=yes _LT_TAGVAR(allow_undefined_flag, $1)=unsupported shrext_cmds=.dll _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ $ECHO EXPORTS >> $output_objdir/$libname.def~ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ $ECHO EXPORTS >> $output_objdir/$libname.def~ prefix_cmds="$SED"~ if test EXPORTS = "`$SED 1q $export_symbols`"; then prefix_cmds="$prefix_cmds -e 1d"; fi~ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes ;; osf3*) if test yes = "$GCC"; then _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' else _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' fi _LT_TAGVAR(archive_cmds_need_lc, $1)='no' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: ;; osf4* | osf5*) # as osf3* with the addition of -msym flag if test yes = "$GCC"; then _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' else _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp' # Both c and cxx compiler support -rpath directly _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' fi _LT_TAGVAR(archive_cmds_need_lc, $1)='no' _LT_TAGVAR(hardcode_libdir_separator, $1)=: ;; solaris*) _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' if test yes = "$GCC"; then wlarc='$wl' _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' else case `$CC -V 2>&1` in *"Compilers 5.0"*) wlarc='' _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' ;; *) wlarc='$wl' _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' ;; esac fi _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' _LT_TAGVAR(hardcode_shlibpath_var, $1)=no case $host_os in solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; *) # The compiler driver will combine and reorder linker options, # but understands '-z linker_flag'. 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(KAI) C++ Compiler # KCC will only create a shared library if the output file # ends with ".so" (or ".sl" for HP-UX), so rename the library # to its proper name (with version) after linking. _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' # Commands to make compiler produce verbose output that lists # what "hidden" libraries, object files and flags are used when # linking a shared library. # # There doesn't appear to be a way to prevent this compiler from # explicitly linking system object files so we need to strip them # from the output so that they don't get included in the library # dependencies. output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' # Archives containing C++ object files must be created using # "CC -Bstatic", where "CC" is the KAI C++ compiler. _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; icpc* | ecpc* ) # Intel C++ with_gnu_ld=yes # version 8.0 and above of icpc choke on multiply defined symbols # if we add $predep_objects and $postdep_objects, however 7.1 and # earlier do not add the objects themselves. case `$CC -V 2>&1` in *"Version 7."*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; *) # Version 8.0 or newer tmp_idyn= case $host_cpu in ia64*) tmp_idyn=' -i_dynamic';; esac _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; esac _LT_TAGVAR(archive_cmds_need_lc, $1)=no _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' ;; pgCC* | pgcpp*) # Portland Group C++ compiler case `$CC -V` in *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ $RANLIB $oldlib' _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; *) # Version 6 and above use weak symbols _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; esac _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' ;; cxx*) # Compaq C++ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' runpath_var=LD_RUN_PATH _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: # Commands to make compiler produce verbose output that lists # what "hidden" libraries, object files and flags are used when # linking a shared library. # # There doesn't appear to be a way to prevent this compiler from # explicitly linking system object files so we need to strip them # from the output so that they don't get included in the library # dependencies. output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; 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LT_OPTION_DEFINE([LT_INIT], [win32-dll], [enable_win32_dll=yes case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) AC_CHECK_TOOL(AS, as, false) AC_CHECK_TOOL(DLLTOOL, dlltool, false) AC_CHECK_TOOL(OBJDUMP, objdump, false) ;; esac test -z "$AS" && AS=as _LT_DECL([], [AS], [1], [Assembler program])dnl test -z "$DLLTOOL" && DLLTOOL=dlltool _LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl test -z "$OBJDUMP" && OBJDUMP=objdump _LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl ])# win32-dll AU_DEFUN([AC_LIBTOOL_WIN32_DLL], [AC_REQUIRE([AC_CANONICAL_HOST])dnl _LT_SET_OPTION([LT_INIT], [win32-dll]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'win32-dll' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) # _LT_ENABLE_SHARED([DEFAULT]) # ---------------------------- # implement the --enable-shared flag, and supports the 'shared' and # 'disable-shared' LT_INIT options. # DEFAULT is either 'yes' or 'no'. 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We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_shared=yes fi done IFS=$lt_save_ifs ;; esac], [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) _LT_DECL([build_libtool_libs], [enable_shared], [0], [Whether or not to build shared libraries]) ])# _LT_ENABLE_SHARED LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) # Old names: AC_DEFUN([AC_ENABLE_SHARED], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) ]) AC_DEFUN([AC_DISABLE_SHARED], [_LT_SET_OPTION([LT_INIT], [disable-shared]) ]) AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_ENABLE_SHARED], []) dnl AC_DEFUN([AM_DISABLE_SHARED], []) # _LT_ENABLE_STATIC([DEFAULT]) # ---------------------------- # implement the --enable-static flag, and support the 'static' and # 'disable-static' LT_INIT options. # DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. m4_define([_LT_ENABLE_STATIC], [m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([static], [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_static=yes ;; no) enable_static=no ;; *) enable_static=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_static=yes fi done IFS=$lt_save_ifs ;; esac], [enable_static=]_LT_ENABLE_STATIC_DEFAULT) _LT_DECL([build_old_libs], [enable_static], [0], [Whether or not to build static libraries]) ])# _LT_ENABLE_STATIC LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) # Old names: AC_DEFUN([AC_ENABLE_STATIC], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) ]) AC_DEFUN([AC_DISABLE_STATIC], [_LT_SET_OPTION([LT_INIT], [disable-static]) ]) AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_ENABLE_STATIC], []) dnl AC_DEFUN([AM_DISABLE_STATIC], []) # _LT_ENABLE_FAST_INSTALL([DEFAULT]) # ---------------------------------- # implement the --enable-fast-install flag, and support the 'fast-install' # and 'disable-fast-install' LT_INIT options. # DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. m4_define([_LT_ENABLE_FAST_INSTALL], [m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([fast-install], [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_fast_install=yes ;; no) enable_fast_install=no ;; *) enable_fast_install=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_fast_install=yes fi done IFS=$lt_save_ifs ;; esac], [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT) _LT_DECL([fast_install], [enable_fast_install], [0], [Whether or not to optimize for fast installation])dnl ])# _LT_ENABLE_FAST_INSTALL LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])]) # Old names: AU_DEFUN([AC_ENABLE_FAST_INSTALL], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'fast-install' option into LT_INIT's first parameter.]) ]) AU_DEFUN([AC_DISABLE_FAST_INSTALL], [_LT_SET_OPTION([LT_INIT], [disable-fast-install]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'disable-fast-install' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], []) dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], []) # _LT_WITH_AIX_SONAME([DEFAULT]) # ---------------------------------- # implement the --with-aix-soname flag, and support the `aix-soname=aix' # and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT # is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'. m4_define([_LT_WITH_AIX_SONAME], [m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl shared_archive_member_spec= case $host,$enable_shared in power*-*-aix[[5-9]]*,yes) AC_MSG_CHECKING([which variant of shared library versioning to provide]) AC_ARG_WITH([aix-soname], [AS_HELP_STRING([--with-aix-soname=aix|svr4|both], [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])], [case $withval in aix|svr4|both) ;; *) AC_MSG_ERROR([Unknown argument to --with-aix-soname]) ;; esac lt_cv_with_aix_soname=$with_aix_soname], [AC_CACHE_VAL([lt_cv_with_aix_soname], [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT) with_aix_soname=$lt_cv_with_aix_soname]) AC_MSG_RESULT([$with_aix_soname]) if test aix != "$with_aix_soname"; then # For the AIX way of multilib, we name the shared archive member # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, # the AIX toolchain works better with OBJECT_MODE set (default 32). if test 64 = "${OBJECT_MODE-32}"; then shared_archive_member_spec=shr_64 else shared_archive_member_spec=shr fi fi ;; *) with_aix_soname=aix ;; esac _LT_DECL([], [shared_archive_member_spec], [0], [Shared archive member basename, for filename based shared library versioning on AIX])dnl ])# _LT_WITH_AIX_SONAME LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])]) LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])]) LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])]) # _LT_WITH_PIC([MODE]) # -------------------- # implement the --with-pic flag, and support the 'pic-only' and 'no-pic' # LT_INIT options. # MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'. m4_define([_LT_WITH_PIC], [AC_ARG_WITH([pic], [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@], [try to use only PIC/non-PIC objects @<:@default=use both@:>@])], [lt_p=${PACKAGE-default} case $withval in yes|no) pic_mode=$withval ;; *) pic_mode=default # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for lt_pkg in $withval; do IFS=$lt_save_ifs if test "X$lt_pkg" = "X$lt_p"; then pic_mode=yes fi done IFS=$lt_save_ifs ;; esac], [pic_mode=m4_default([$1], [default])]) _LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl ])# _LT_WITH_PIC LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])]) LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])]) # Old name: AU_DEFUN([AC_LIBTOOL_PICMODE], [_LT_SET_OPTION([LT_INIT], [pic-only]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'pic-only' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_PICMODE], []) ## ----------------- ## ## LTDL_INIT Options ## ## ----------------- ## m4_define([_LTDL_MODE], []) LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive], [m4_define([_LTDL_MODE], [nonrecursive])]) LT_OPTION_DEFINE([LTDL_INIT], [recursive], [m4_define([_LTDL_MODE], [recursive])]) LT_OPTION_DEFINE([LTDL_INIT], [subproject], [m4_define([_LTDL_MODE], [subproject])]) m4_define([_LTDL_TYPE], []) LT_OPTION_DEFINE([LTDL_INIT], [installable], [m4_define([_LTDL_TYPE], [installable])]) LT_OPTION_DEFINE([LTDL_INIT], [convenience], [m4_define([_LTDL_TYPE], [convenience])]) jool-4.0.7/m4/pkg.m40000644000175000017500000002401113576247337010770 00000000000000dnl pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- dnl serial 11 (pkg-config-0.29.1) dnl dnl Copyright © 2004 Scott James Remnant . dnl Copyright © 2012-2015 Dan Nicholson dnl dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2 of the License, or dnl (at your option) any later version. dnl dnl This program is distributed in the hope that it will be useful, but dnl WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU dnl General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA dnl 02111-1307, USA. dnl dnl As a special exception to the GNU General Public License, if you dnl distribute this file as part of a program that contains a dnl configuration script generated by Autoconf, you may include it under dnl the same distribution terms that you use for the rest of that dnl program. dnl PKG_PREREQ(MIN-VERSION) dnl ----------------------- dnl Since: 0.29 dnl dnl Verify that the version of the pkg-config macros are at least dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's dnl installed version of pkg-config, this checks the developer's version dnl of pkg.m4 when generating configure. dnl dnl To ensure that this macro is defined, also add: dnl m4_ifndef([PKG_PREREQ], dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) dnl dnl See the "Since" comment for each macro you use to see what version dnl of the macros you require. m4_defun([PKG_PREREQ], [m4_define([PKG_MACROS_VERSION], [0.29.1]) m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) ])dnl PKG_PREREQ dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) dnl ---------------------------------- dnl Since: 0.16 dnl dnl Search for the pkg-config tool and set the PKG_CONFIG variable to dnl first found in the path. Checks that the version of pkg-config found dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is dnl used since that's the first version where most current features of dnl pkg-config existed. AC_DEFUN([PKG_PROG_PKG_CONFIG], [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) fi if test -n "$PKG_CONFIG"; then _pkg_min_version=m4_default([$1], [0.9.0]) AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) PKG_CONFIG="" fi fi[]dnl ])dnl PKG_PROG_PKG_CONFIG dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) dnl ------------------------------------------------------------------- dnl Since: 0.18 dnl dnl Check to see whether a particular set of modules exists. Similar to dnl PKG_CHECK_MODULES(), but does not set variables or print errors. dnl dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) dnl only at the first occurence in configure.ac, so if the first place dnl it's called might be skipped (such as if it is within an "if", you dnl have to call PKG_CHECK_EXISTS manually AC_DEFUN([PKG_CHECK_EXISTS], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl if test -n "$PKG_CONFIG" && \ AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then m4_default([$2], [:]) m4_ifvaln([$3], [else $3])dnl fi]) dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) dnl --------------------------------------------- dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting dnl pkg_failed based on the result. m4_define([_PKG_CONFIG], [if test -n "$$1"; then pkg_cv_[]$1="$$1" elif test -n "$PKG_CONFIG"; then PKG_CHECK_EXISTS([$3], [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes ], [pkg_failed=yes]) else pkg_failed=untried fi[]dnl ])dnl _PKG_CONFIG dnl _PKG_SHORT_ERRORS_SUPPORTED dnl --------------------------- dnl Internal check to see if pkg-config supports short errors. AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi[]dnl ])dnl _PKG_SHORT_ERRORS_SUPPORTED dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], dnl [ACTION-IF-NOT-FOUND]) dnl -------------------------------------------------------------- dnl Since: 0.4.0 dnl dnl Note that if there is a possibility the first call to dnl PKG_CHECK_MODULES might not happen, you should be sure to include an dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac AC_DEFUN([PKG_CHECK_MODULES], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl pkg_failed=no AC_MSG_CHECKING([for $1]) _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) _PKG_CONFIG([$1][_LIBS], [libs], [$2]) m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS and $1[]_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details.]) if test $pkg_failed = yes; then AC_MSG_RESULT([no]) _PKG_SHORT_ERRORS_SUPPORTED if test $_pkg_short_errors_supported = yes; then $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` else $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD m4_default([$4], [AC_MSG_ERROR( [Package requirements ($2) were not met: $$1_PKG_ERRORS Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. _PKG_TEXT])[]dnl ]) elif test $pkg_failed = untried; then AC_MSG_RESULT([no]) m4_default([$4], [AC_MSG_FAILURE( [The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config. _PKG_TEXT To get pkg-config, see .])[]dnl ]) else $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS $1[]_LIBS=$pkg_cv_[]$1[]_LIBS AC_MSG_RESULT([yes]) $3 fi[]dnl ])dnl PKG_CHECK_MODULES dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], dnl [ACTION-IF-NOT-FOUND]) dnl --------------------------------------------------------------------- dnl Since: 0.29 dnl dnl Checks for existence of MODULES and gathers its build flags with dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags dnl and VARIABLE-PREFIX_LIBS from --libs. dnl dnl Note that if there is a possibility the first call to dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to dnl include an explicit call to PKG_PROG_PKG_CONFIG in your dnl configure.ac. AC_DEFUN([PKG_CHECK_MODULES_STATIC], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl _save_PKG_CONFIG=$PKG_CONFIG PKG_CONFIG="$PKG_CONFIG --static" PKG_CHECK_MODULES($@) PKG_CONFIG=$_save_PKG_CONFIG[]dnl ])dnl PKG_CHECK_MODULES_STATIC dnl PKG_INSTALLDIR([DIRECTORY]) dnl ------------------------- dnl Since: 0.27 dnl dnl Substitutes the variable pkgconfigdir as the location where a module dnl should install pkg-config .pc files. By default the directory is dnl $libdir/pkgconfig, but the default can be changed by passing dnl DIRECTORY. The user can override through the --with-pkgconfigdir dnl parameter. AC_DEFUN([PKG_INSTALLDIR], [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) m4_pushdef([pkg_description], [pkg-config installation directory @<:@]pkg_default[@:>@]) AC_ARG_WITH([pkgconfigdir], [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, [with_pkgconfigdir=]pkg_default) AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) m4_popdef([pkg_default]) m4_popdef([pkg_description]) ])dnl PKG_INSTALLDIR dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) dnl -------------------------------- dnl Since: 0.27 dnl dnl Substitutes the variable noarch_pkgconfigdir as the location where a dnl module should install arch-independent pkg-config .pc files. By dnl default the directory is $datadir/pkgconfig, but the default can be dnl changed by passing DIRECTORY. The user can override through the dnl --with-noarch-pkgconfigdir parameter. AC_DEFUN([PKG_NOARCH_INSTALLDIR], [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) m4_pushdef([pkg_description], [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) AC_ARG_WITH([noarch-pkgconfigdir], [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, [with_noarch_pkgconfigdir=]pkg_default) AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) m4_popdef([pkg_default]) m4_popdef([pkg_description]) ])dnl PKG_NOARCH_INSTALLDIR dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) dnl ------------------------------------------- dnl Since: 0.28 dnl dnl Retrieves the value of the pkg-config variable for the given module. AC_DEFUN([PKG_CHECK_VAR], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl _PKG_CONFIG([$1], [variable="][$3]["], [$2]) AS_VAR_COPY([$1], [pkg_cv_][$1]) AS_VAR_IF([$1], [""], [$5], [$4])dnl ])dnl PKG_CHECK_VAR jool-4.0.7/m4/lt~obsolete.m40000644000175000017500000001377413576247337012577 00000000000000# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- # # Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software # Foundation, Inc. # Written by Scott James Remnant, 2004. # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 5 lt~obsolete.m4 # These exist entirely to fool aclocal when bootstrapping libtool. # # In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN), # which have later been changed to m4_define as they aren't part of the # exported API, or moved to Autoconf or Automake where they belong. # # The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN # in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us # using a macro with the same name in our local m4/libtool.m4 it'll # pull the old libtool.m4 in (it doesn't see our shiny new m4_define # and doesn't know about Autoconf macros at all.) # # So we provide this file, which has a silly filename so it's always # included after everything else. This provides aclocal with the # AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything # because those macros already exist, or will be overwritten later. # We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. # # Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. # Yes, that means every name once taken will need to remain here until # we give up compatibility with versions before 1.7, at which point # we need to keep only those names which we still refer to. # This is to help aclocal find these macros, as it can't see m4_define. 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Vaughan, 2004 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 6 ltsugar.m4 # This is to help aclocal find these macros, as it can't see m4_define. AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) # lt_join(SEP, ARG1, [ARG2...]) # ----------------------------- # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their # associated separator. # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier # versions in m4sugar had bugs. m4_define([lt_join], [m4_if([$#], [1], [], [$#], [2], [[$2]], [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) m4_define([_lt_join], [m4_if([$#$2], [2], [], [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) # lt_car(LIST) # lt_cdr(LIST) # ------------ # Manipulate m4 lists. # These macros are necessary as long as will still need to support # Autoconf-2.59, which quotes differently. m4_define([lt_car], [[$1]]) m4_define([lt_cdr], [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], [$#], 1, [], [m4_dquote(m4_shift($@))])]) m4_define([lt_unquote], $1) # lt_append(MACRO-NAME, STRING, [SEPARATOR]) # ------------------------------------------ # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. # Note that neither SEPARATOR nor STRING are expanded; they are appended # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). # No SEPARATOR is output if MACRO-NAME was previously undefined (different # than defined and empty). # # This macro is needed until we can rely on Autoconf 2.62, since earlier # versions of m4sugar mistakenly expanded SEPARATOR but not STRING. m4_define([lt_append], [m4_define([$1], m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) # ---------------------------------------------------------- # Produce a SEP delimited list of all paired combinations of elements of # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list # has the form PREFIXmINFIXSUFFIXn. # Needed until we can rely on m4_combine added in Autoconf 2.62. m4_define([lt_combine], [m4_if(m4_eval([$# > 3]), [1], [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl [[m4_foreach([_Lt_prefix], [$2], [m4_foreach([_Lt_suffix], ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) # ----------------------------------------------------------------------- # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. m4_define([lt_if_append_uniq], [m4_ifdef([$1], [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], [lt_append([$1], [$2], [$3])$4], [$5])], [lt_append([$1], [$2], [$3])$4])]) # lt_dict_add(DICT, KEY, VALUE) # ----------------------------- m4_define([lt_dict_add], [m4_define([$1($2)], [$3])]) # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) # -------------------------------------------- m4_define([lt_dict_add_subkey], [m4_define([$1($2:$3)], [$4])]) # lt_dict_fetch(DICT, KEY, [SUBKEY]) # ---------------------------------- m4_define([lt_dict_fetch], [m4_ifval([$3], m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) # ----------------------------------------------------------------- m4_define([lt_if_dict_fetch], [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], [$5], [$6])]) # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) # -------------------------------------------------------------- m4_define([lt_dict_filter], [m4_if([$5], [], [], [lt_join(m4_quote(m4_default([$4], [[, ]])), lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl ]) jool-4.0.7/INSTALL0000775000175000017500000000034213576225301010447 00000000000000See https://jool.mx/en/install.html. Quick version: ./autogen.sh # If this script does not exist, skip this command. ./configure make sudo make install # userspace tools sudo dkms install . # kernel modules