pen-0.20.2/0000775000175000017500000000000012267455212007366 500000000000000pen-0.20.2/README0000644000175000017500000000403512245052470010161 00000000000000 This is pen, a load balancer for "simple" tcp based protocols such as http or smtp. It allows several servers to appear as one to the outside and automatically detects servers that are down and distributes clients among the available servers. This gives high availability and scalable performance. The load balancing algorithm keeps track of clients and will try to send them back to the server they visited the last time. The client table has a number of slots (default 2048, settable through command-line arguments). When the table is full, the least recently used one will be thrown out to make room for the new one. This is superior to a simple round-robin algorithm, which sends a client that connects repeatedly to different servers. Doing so breaks applications that maintain state between connections in the server, including most modern web applications. When pen detects that a server is unavailable, it scans for another starting with the server after the most recently used one. That way we get load balancing and "fair" failover for free. Correctly configured, pen can ensure that a server farm is always available, even when individual servers are brought down for maintenance or reconfiguration. The final single point of failure, pen itself, can be eliminated by running pen on several servers, using vrrp to decide which is active. A side-effect of the load-balancing is that several logfiles are produced, and all accesses seem to come from the load balancer. The program penlogd solves this problem by merging pen's log file with the ones produced by the web servers. See penlogd(1) and penlog(1) for details. This load balancer is known to work on FreeBSD, Linux, HP-UX and Solaris. Other Unixes should work as well, possibly requiring trivial changes. Success stories or problem reports are welcome. If pen is started with the -w option, statistics are saved in html format when a USR1 signal is received. The cgi script penstats can be used to simplify this; it must be edited to reflect local conditions. 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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: pen-0.20.2/pentest.c0000664000175000017500000001003212250100254011111 00000000000000/* Copyright (C) 2000-2013 Ulric Eriksson 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; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include #include #include #include #include #include static unsigned char mask4[33][4]; static unsigned char mask6[129][16]; static void init_masks(void) { unsigned char m4[4]; unsigned char m6[16]; int i, j; memset(m4, 0, sizeof m4); memset(m6, 0, sizeof m6); for (i = 0; i < 33; i++) { for (j = 3; j >= 0; j--) { mask4[i][j] = m4[j]; m4[j] >>= 1; if (j > 0) { m4[j] |= (m4[j-1] << 7); } else { m4[j] |= (1 << 7); } } printf("%d: %d %d %d %d\n", i, mask4[i][0], mask4[i][1], mask4[i][2], mask4[i][3]); } for (i = 0; i < 129; i++) { for (j = 15; j >= 0; j--) { mask6[i][j] = m6[j]; m6[j] >>= 1; if (j > 0) { m6[j] |= (m6[j-1] << 7); } else { m6[j] |= (1 << 7); } } } } //#include "pen-net.h" static void pen_error(char *fmt, ...) { char b[4096]; va_list ap; va_start(ap, fmt); vsnprintf(b, sizeof b, fmt, ap); fprintf(stderr, "%s\n", b); va_end(ap); exit(EXIT_FAILURE); } static void test_unlookup(struct addrinfo *ai) { char host[1000]; char serv[1000]; int n; n = getnameinfo(ai->ai_addr, ai->ai_addrlen, host, 1000, serv, 1000, NI_NUMERICHOST|NI_NUMERICSERV); if (n != 0) { printf("getnameinfo: %s\n", gai_strerror(n)); return; } printf("addr = '%s', port = '%s'\n", host, serv); } static void dump_address(struct addrinfo *ai) { struct sockaddr_storage *ss = ai->ai_addr; struct sockaddr_in *sa4; struct sockaddr_in6 *sa6; unsigned char *b; int i; printf("ss_family = %d\n", (int)ss->ss_family); switch (ss->ss_family) { case AF_INET: sa4 = ss; printf("IPv4\n"); printf("sin_family = %d\n", sa4->sin_family); printf("sin_port = %d\n", ntohs(sa4->sin_port)); b = &(sa4->sin_addr); for (i = 0; i < 4; i++) { printf("%d ", (int)b[i]); } printf("\n"); break; case AF_INET6: sa6 = ss; printf("IPv6\n"); printf("sin6_family = %d\n", sa6->sin6_family); printf("sin6_port = %d\n", ntohs(sa6->sin6_port)); b = &(sa6->sin6_addr); for (i = 0; i < 16; i++) { printf("%d ", (int)b[i]); } printf("\n"); break; default: printf("Unknown family\n"); break; } } static void test_lookup(char *arg) { struct addrinfo *ai; struct addrinfo hints; int n; char addr[1000]; char port[1000]; if (arg[0] == '[') { n = sscanf(arg, "[%[^]]]:%s", addr, port); } else { n = sscanf(arg, "%[^:]:%s", addr, port); } if (n != 2) { printf("Bogus argument '%s'\n", arg); return; } printf("addr = '%s', port = '%s'\n", addr, port); memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; hints.ai_flags = AI_ADDRCONFIG; hints.ai_socktype = SOCK_STREAM; n = getaddrinfo(addr, port, &hints, &ai); if (n != 0) { pen_error("getaddrinfo: %s", gai_strerror(n)); return; } printf("family = %d\n", ai->ai_family); printf("socktype = %d\n", ai->ai_socktype); printf("protocol = %d\n", ai->ai_protocol); printf("addrlen = %d\n", (int)ai->ai_addrlen); printf("sockaddr = %p\n", ai->ai_addr); printf("canonname = %s\n", ai->ai_canonname); test_unlookup(ai); dump_address(ai); freeaddrinfo(ai); printf("\n"); } int main(int argc, char **argv) { int i; init_masks(); for (i = 1; i < argc; i++) { test_lookup(argv[i]); } return 0; } pen-0.20.2/NEWS0000644000175000017500000000000010332213015007751 00000000000000pen-0.20.2/INSTALL0000644000175000017500000002351312244613266010341 00000000000000 Installing Pen ============== To compile and install using all defaults, type: ./configure make make install Options ------- Most of the "generic" options are verbosely described below. Options that are specific to Pen include: --with-ssl=DIR use SSL (default /usr/local/ssl) Build Pen with SSL support. --with-daemon use daemon() if available The --with-daemon option specifies how Pen puts itself in the background. Some operating systems have a function called daemon() which does this; with this option, the function will be used. --with-poll use poll() if available Normally Pen uses the select() function to get notification when a socket is ready for reading or writing. This option enables an alternative method, using the poll() function. THIS IS CURRENTLY EXPERIMENTAL! --with-kqueue use kqueue() if available The kqueue interface for event notification is available on *bsd and offers better performance than either select() or poll(). --with-fd_setsize=N set FD_SETSIZE to N To use Pen with a very large number of simultaneous connections, the preprocessing macro FD_SETSIZE must be increased. The default value varies between operating systems, as does the maximum supported. Pen will try to catch attempts to run out of spec. The select() used by Linux is broken in this respect, and doesn't allow FD_SETSIZE to be changed from the default. The solution is to not use Linux, or to change the #defines in the relevant include files: and . Look for lines like this: #define __FD_SETSIZE 1024 and change them to what you really want, such as: #define __FD_SETSIZE 16384 You probably want to change them back afterwards. The resulting max number of simultaneous connections will be: (FD_SETSIZE-10)/2 10 is for stdin, stdout, stderr "and then some". 2 is because each connection uses two file descriptors. The default FD_SETSIZE on Windows is very low, only 64. Fortunately, this value isn't cast in stone like it is on Linux. Just do: ./configure --with-fd_setsize=1024 This will allow 507 simultaneous connections. --------------------------------------------------------------------- Basic Installation ================== These are generic installation instructions. 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. It may also create one or more `.h' files containing system-dependent definitions. Finally, it creates a shell script `config.status' that you can run in the future to recreate the current configuration, a file `config.cache' that saves the results of its tests to speed up reconfiguring, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. If at some point `config.cache' contains results you don't want to keep, you may remove or edit it. The file `configure.in' is used to create `configure' by a program called `autoconf'. You only need `configure.in' if you want to change it or regenerate `configure' using a newer version of `autoconf'. The simplest way to compile this package is: 1. `cd' to the directory containing the package's source code and type `./configure' to configure the package for your system. If you're using `csh' on an old version of System V, you might need to type `sh ./configure' instead to prevent `csh' from trying to execute `configure' itself. Running `configure' takes awhile. While running, it prints some messages telling which features it is checking for. 2. Type `make' to compile the package. 3. Optionally, type `make check' to run any self-tests that come with the package. 4. Type `make install' to install the programs and any data files and documentation. 5. You can remove the program binaries and object files from the source code directory by typing `make clean'. To also remove the files that `configure' created (so you can compile the package for a different kind of computer), type `make distclean'. There is also a `make maintainer-clean' target, but that is intended mainly for the package's developers. If you use it, you may have to get all sorts of other programs in order to regenerate files that came with the distribution. Compilers and Options ===================== Some systems require unusual options for compilation or linking that the `configure' script does not know about. You can give `configure' initial values for variables by setting them in the environment. Using a Bourne-compatible shell, you can do that on the command line like this: CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure Or on systems that have the `env' program, you can do it like this: env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure Compiling For Multiple Architectures ==================================== You can compile the package for more than one kind of computer at the same time, by placing the object files for each architecture in their own directory. To do this, you must use a version of `make' that supports the `VPATH' variable, such as GNU `make'. `cd' to the directory where you want the object files and executables to go and run the `configure' script. `configure' automatically checks for the source code in the directory that `configure' is in and in `..'. If you have to use a `make' that does not supports the `VPATH' variable, you have to compile the package for one architecture at a time in the source code directory. After you have installed the package for one architecture, use `make distclean' before reconfiguring for another architecture. Installation Names ================== By default, `make install' will install the package's files in `/usr/local/bin', `/usr/local/man', etc. You can specify an installation prefix other than `/usr/local' by giving `configure' the option `--prefix=PATH'. You can specify separate installation prefixes for architecture-specific files and architecture-independent files. If you give `configure' the option `--exec-prefix=PATH', the package will use PATH as the prefix for installing programs and libraries. Documentation and other data files will still use the regular prefix. In addition, if you use an unusual directory layout you can give options like `--bindir=PATH' to specify different values for particular kinds of files. Run `configure --help' for a list of the directories you can set and what kinds of files go in them. If the package supports it, you can cause programs to be installed with an extra prefix or suffix on their names by giving `configure' the option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. Optional Features ================= Some packages pay attention to `--enable-FEATURE' options to `configure', where FEATURE indicates an optional part of the package. They may also pay attention to `--with-PACKAGE' options, where PACKAGE is something like `gnu-as' or `x' (for the X Window System). The `README' should mention any `--enable-' and `--with-' options that the package recognizes. For packages that use the X Window System, `configure' can usually find the X include and library files automatically, but if it doesn't, you can use the `configure' options `--x-includes=DIR' and `--x-libraries=DIR' to specify their locations. Specifying the System Type ========================== There may be some features `configure' can not figure out automatically, but needs to determine by the type of host the package will run on. Usually `configure' can figure that out, but if it prints a message saying it can not guess the host type, give it the `--host=TYPE' option. TYPE can either be a short name for the system type, such as `sun4', or a canonical name with three fields: CPU-COMPANY-SYSTEM See the file `config.sub' for the possible values of each field. If `config.sub' isn't included in this package, then this package doesn't need to know the host type. If you are building compiler tools for cross-compiling, you can also use the `--target=TYPE' option to select the type of system they will produce code for and the `--build=TYPE' option to select the type of system on which you are compiling the package. Sharing Defaults ================ If you want to set default values for `configure' scripts to share, you can create a site shell script called `config.site' that gives default values for variables like `CC', `cache_file', and `prefix'. `configure' looks for `PREFIX/share/config.site' if it exists, then `PREFIX/etc/config.site' if it exists. Or, you can set the `CONFIG_SITE' environment variable to the location of the site script. A warning: not all `configure' scripts look for a site script. Operation Controls ================== `configure' recognizes the following options to control how it operates. `--cache-file=FILE' Use and save the results of the tests in FILE instead of `./config.cache'. Set FILE to `/dev/null' to disable caching, for debugging `configure'. `--help' Print a summary of the options to `configure', and exit. `--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. `--version' Print the version of Autoconf used to generate the `configure' script, and exit. `configure' also accepts some other, not widely useful, options. pen-0.20.2/Makefile.am0000644000175000017500000000110212247370117011330 00000000000000 bin_PROGRAMS = pen mergelogs penctl penlog penlogd pentest pen_SOURCES = pen.c mergelogs_SOURCES = mergelogs.c penctl_SOURCES = penctl.c penlog_SOURCES = penlog.c penlogd_SOURCES = penlogd.c pentest_SOURCES = pentest.c doc_DATA = penstats HOWTO AUTHORS README ChangeLog COPYING man_MANS = pen.1 mergelogs.1 penctl.1 penlog.1 penlogd.1 EXTRA_DIST = $(man_MANS) $(doc_DATA) penctl.cgi pen.spec siag.pem tgz: rm -rf tmpinst mkdir tmpinst make clean ./configure --prefix=/usr make make install-strip prefix=tmpinst/usr (cd tmpinst && makepkg pen.tgz && mv pen.tgz ..) pen-0.20.2/penlog.10000644000175000017500000000132410332213025010633 00000000000000.TH PENLOG 1 LOCAL .SH NAME penlog .SH SYNOPSIS .B penlog server_ip server_port [my_ip] .SH EXAMPLE penlog lbhost:10000 .SH DESCRIPTION .I Penlog reads webserver log entries from stdin and sends them using UDP to penlogd. It is intended for Apache's "reliable piped logs". To use penlog from Apache, add a command like this to the web server's httpd.conf: CustomLog "|/usr/local/bin/penlog somehost 10000" common The optional third argument is used if the server has several addresses. Penlogd uses the source address to identify the server, and it must be identical to the address configured in the command line to Pen. .SH SEE ALSO pen(1), penlogd(1) .SH AUTHOR Copyright (C) 2002 Ulric Eriksson, . pen-0.20.2/COPYING0000644000175000017500000004440712267205267010353 00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 Library 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. In addition, as a special exception, the copyright holders give permission to link the code of portions of this program with the OpenSSL library under certain conditions as described in each individual source file, and distribute linked combinations including the two. You must obey the GNU General Public License in all respects for all of the code used other than OpenSSL. If you modify file(s) with this exception, you may extend this exception to your version of the file(s), but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. If you delete this exception statement from all source files in the program, then also delete it here. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 Library General Public License instead of this License. pen-0.20.2/config.guess0000755000175000017500000013036112201675101011615 00000000000000#! /bin/sh # Attempt to guess a canonical system name. # Copyright 1992-2013 Free Software Foundation, Inc. timestamp='2013-06-10' # 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"). # # Originally written by Per Bothner. # # You can get the latest version of this script from: # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD # # Please send patches with a ChangeLog entry to config-patches@gnu.org. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] Output the configuration name of the system \`$me' is run on. Operation modes: -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.guess ($timestamp) Originally written by Per Bothner. Copyright 1992-2013 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$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" >&2 exit 1 ;; * ) break ;; esac done if test $# != 0; then echo "$me: too many arguments$help" >&2 exit 1 fi trap 'exit 1' 1 2 15 # CC_FOR_BUILD -- compiler used by this script. Note that the use of a # compiler to aid in system detection is discouraged as it requires # temporary files to be created and, as you can see below, it is a # headache to deal with in a portable fashion. # Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. 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The system name ranges from "MiNT" over "FreeMiNT" # to the lowercase version "mint" (or "freemint"). Finally # the system name "TOS" denotes a system which is actually not # MiNT. But MiNT is downward compatible to TOS, so this should # be no problem. atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) echo m68k-milan-mint${UNAME_RELEASE} exit ;; hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) echo m68k-hades-mint${UNAME_RELEASE} exit ;; *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) echo m68k-unknown-mint${UNAME_RELEASE} exit ;; m68k:machten:*:*) echo m68k-apple-machten${UNAME_RELEASE} exit ;; powerpc:machten:*:*) echo powerpc-apple-machten${UNAME_RELEASE} exit ;; RISC*:Mach:*:*) echo mips-dec-mach_bsd4.3 exit ;; RISC*:ULTRIX:*:*) echo mips-dec-ultrix${UNAME_RELEASE} exit ;; VAX*:ULTRIX*:*:*) echo vax-dec-ultrix${UNAME_RELEASE} exit ;; 2020:CLIX:*:* | 2430:CLIX:*:*) echo clipper-intergraph-clix${UNAME_RELEASE} exit ;; 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 ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${IBM_ARCH}-ibm-aix${IBM_REV} exit ;; *:AIX:*:*) echo rs6000-ibm-aix exit ;; ibmrt:4.4BSD:*|romp-ibm:BSD:*) 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) echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; *) echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; esac exit ;; i*:CYGWIN*:*) echo ${UNAME_MACHINE}-pc-cygwin exit ;; *:MINGW64*:*) echo ${UNAME_MACHINE}-pc-mingw64 exit ;; *:MINGW*:*) echo ${UNAME_MACHINE}-pc-mingw32 exit ;; i*:MSYS*:*) echo ${UNAME_MACHINE}-pc-msys exit ;; i*:windows32*:*) # uname -m includes "-pc" on this system. echo ${UNAME_MACHINE}-mingw32 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 ;; [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) echo i${UNAME_MACHINE}-pc-mks exit ;; 8664:Windows_NT:*) echo x86_64-pc-mks exit ;; i*:Windows_NT*:* | Pentium*:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # It also conflicts with pre-2.0 versions of AT&T UWIN. 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EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; PCA57) UNAME_MACHINE=alphapca56 ;; EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 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 ;; 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 ;; 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; } ;; or1k:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; or32: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 ;; 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:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} 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.*:* | i*86:SYSTEM_V: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 ${UNAME_MACHINE}-pc-sysv32 fi exit ;; pc:*:*:*) # Left here for compatibility: # uname -m prints for DJGPP always 'pc', but it prints nothing about # the processor, so we play safe by assuming i586. # Note: whatever this is, it MUST be the same as what config.sub # prints for the "djgpp" host, or else GDB configury will decide that # this is a cross-build. echo i586-pc-msdosdjgpp exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; paragon:*:*:*) echo i860-intel-osf1 exit ;; i860:*:4.*:*) # i860-SVR4 if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then echo i860-stardent-sysv${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 ;; 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 [ "$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 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 ;; *: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 ;; esac eval $set_cc_for_build cat >$dummy.c < # include #endif main () { #if defined (sony) #if defined (MIPSEB) /* BFD wants "bsd" instead of "newsos". 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*/ printf ("i386-sequent-ptx1\n"); exit (0); } printf ("i386-sequent-ptx\n"); exit (0); #endif #if defined (vax) # if !defined (ultrix) # include # if defined (BSD) # if BSD == 43 printf ("vax-dec-bsd4.3\n"); exit (0); # else # if BSD == 199006 printf ("vax-dec-bsd4.3reno\n"); exit (0); # else printf ("vax-dec-bsd\n"); exit (0); # endif # endif # else printf ("vax-dec-bsd\n"); exit (0); # endif # else printf ("vax-dec-ultrix\n"); exit (0); # endif #endif #if defined (alliant) && defined (i860) printf ("i860-alliant-bsd\n"); exit (0); #endif exit (1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } # Apollos put the system type in the environment. test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; } # Convex versions that predate uname can use getsysinfo(1) if [ -x /usr/convex/getsysinfo ] then case `getsysinfo -f cpu_type` in c1*) echo c1-convex-bsd exit ;; c2*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; c34*) echo c34-convex-bsd exit ;; c38*) echo c38-convex-bsd exit ;; c4*) echo c4-convex-bsd exit ;; esac fi cat >&2 < in order to provide the needed information to handle your system. config.guess timestamp = $timestamp uname -m = `(uname -m) 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-hooks 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: pen-0.20.2/siag.pem0000644000175000017500000000343310332213017010717 00000000000000-----BEGIN RSA PRIVATE KEY----- MIICXwIBAAKBgQDKcE9kAiLqzJWQAImFRhC1e6wvfTtd1Gcy+eoP+Ngnqroijeon lV2vsNENsr+AMksRREeRFk4WP14MUZAB2p2iEy5J8jU31iUvFHswvWY6IEThwESP bt+3h2buJ6475UgQ3Ww2lJ6jTewBOEEZ/sRuqEmLy33bQEMOwFlSJcFsXwIDAQAB AoGBALxYDaUwT6hAu44E0e3LKFSRQbvVOdysd294EQrXLNSLBS6M9qPpVgbV7Upf Wcg+ApWH/0W/iNsuDaRMZj0zVqAClE9W9mcbIIKxAExj5kBiUSiVJjKiM/N6V/TH a9rqPpUsHkJ2YhN7VWgW8Fkd9l0Poe4eQaQfEYzv/reAHjLxAkEA6bBIB+OztkMv YgKRILwOxIaNUjeo8rYPc5hzQlfHAClr27eTJmKI5vFhjkiFsgZ97kjpBAhCUxv+ tq459txLhQJBAN3EO2vRgNOUp5SzGDE/UOp2D66jEtYeGF6Xwqao4WAuH2peVNTv vb5c8mPUL7XmaOEroTD6M5i2qPunuJI5g5MCQQCpVJLdJKGT8Brlafa/QYVx4g2F Bc/mDwYjPNRHvlL0Sw9cpih6J+wLa9zEvMgjt5CImUw/H7zve9mVhal6tyYBAkEA k0IAqyGcx+JIPSeHgvwmQOpQk4hZs7CcQgPID17I+VLnLXyiHBtuBYA2vC9j1we+ 0PZlvN4HcPqpzyGaIA7s3QJBAIBxJTwBYg/fzNYqeSIuIlVxN+Ao/Qgses7UJvIn qf7PhVAWrpuX1mo2Pi7QH6+F0Cmj8BEIrfIPe+kqnIBOHFQ= -----END RSA PRIVATE KEY----- -----BEGIN CERTIFICATE----- MIICfzCCAeigAwIBAgIBADANBgkqhkiG9w0BAQQFADA6MQswCQYDVQQGEwJTVjEZ MBcGA1UEChMQU2lhZyBPZmZpY2UsIEluYzEQMA4GA1UEAxMHc2lhZy5udTAeFw0w MzAzMTgwODQ4MTRaFw0zMDA4MDMwODQ4MTRaMDoxCzAJBgNVBAYTAlNWMRkwFwYD VQQKExBTaWFnIE9mZmljZSwgSW5jMRAwDgYDVQQDEwdzaWFnLm51MIGfMA0GCSqG SIb3DQEBAQUAA4GNADCBiQKBgQDKcE9kAiLqzJWQAImFRhC1e6wvfTtd1Gcy+eoP +NgnqroijeonlV2vsNENsr+AMksRREeRFk4WP14MUZAB2p2iEy5J8jU31iUvFHsw vWY6IEThwESPbt+3h2buJ6475UgQ3Ww2lJ6jTewBOEEZ/sRuqEmLy33bQEMOwFlS JcFsXwIDAQABo4GUMIGRMB0GA1UdDgQWBBTiAQBmjX5+5ki5ePNiF61jhmF5xDBi BgNVHSMEWzBZgBTiAQBmjX5+5ki5ePNiF61jhmF5xKE+pDwwOjELMAkGA1UEBhMC U1YxGTAXBgNVBAoTEFNpYWcgT2ZmaWNlLCBJbmMxEDAOBgNVBAMTB3NpYWcubnWC AQAwDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQQFAAOBgQC2nAZn6MdkmX7xQSP0 5Z3NeMx4BKHzfDZ0/gkcpKEfH4A45Nz6cReGy7WY4vkXM8BCN0X46ViKnfcXByrA MPuIEETTffZ1qzFvxolfDqJvsZGw7Tz7GvmbOBEk9itTyJ7h0AFiCr6JyoEUwniQ FD7bVtD5uFKUGksFrzBGdrBNyg== -----END CERTIFICATE----- pen-0.20.2/penctl.c0000644000175000017500000000750712245066237010747 00000000000000/* Copyright (C) 2000-2013 Ulric Eriksson 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; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include #include #include #include #include //#include #include #include #include #include #include #ifdef TIME_WITH_SYS_TIME #include #endif #include #include #include #include #include #include #include #include #include "config.h" static void error(char *fmt, ...) { char b[4096]; va_list ap; va_start(ap, fmt); vsnprintf(b, sizeof b, fmt, ap); fprintf(stderr, "%s\n", b); va_end(ap); exit(EXIT_FAILURE); } static void alarm_handler(int dummy) { ; } static void usage(void) { printf("usage: penctl host:port command\n"); exit(0); } static int open_socket(char *addr, char *port) { int fd = -1; #if 0 struct sockaddr_in serv_addr; struct hostent *h; struct in_addr a; struct servent *s; #else struct addrinfo *ai; struct addrinfo hints; struct addrinfo *runp; #endif int n; #if 0 h = gethostbyname(addr); if (h == NULL) error("unknown or invalid address %s\n", addr); memcpy(&a, h->h_addr, h->h_length); s = getservbyname(port, "tcp"); if (s == NULL) po = atoi(port); else po = ntohs(s->s_port); fd = socket(AF_INET, SOCK_STREAM, 0); #else memset(&hints, 0, sizeof(hints)); hints.ai_flags = AI_ADDRCONFIG; hints.ai_socktype = SOCK_STREAM; n = getaddrinfo(addr, port, &hints, &ai); if (n != 0) { error("getaddrinfo: %s", gai_strerror(n)); } runp = ai; /* only using first result; should try all */ fd = socket(runp->ai_family, runp->ai_socktype, runp->ai_protocol); #endif if (fd < 0) error("error opening socket"); #if 0 serv_addr.sin_family = AF_INET; serv_addr.sin_addr.s_addr = a.s_addr; serv_addr.sin_port = htons(po); #endif signal(SIGALRM, alarm_handler); #if 0 n = connect(fd, (struct sockaddr *)&serv_addr, sizeof serv_addr); #else n = connect(fd, runp->ai_addr, runp->ai_addrlen); #endif alarm(0); if (n == -1) { error("error connecting to server"); } return fd; } int main(int argc, char **argv) { int i, fd, n; char b[1024], *p; if (argc < 3) { usage(); } n = 1+strlen(argv[1]); /* one for \0 */ if (n > sizeof b) error("Overlong arg '%s'", argv[1]); strcpy(b, argv[1]); /* We need the *last* : to allow such arguments as ::1:10080 if pen's control port is ipv6 localhost:10080 */ p = strrchr(b, ':'); if (p == NULL) error("no port given"); *p++ = '\0'; fd = open_socket(b, p); n = 2+strlen(argv[2]); /* one for \n, one for \0 */ if (n > sizeof b) error("Overlong arg '%s'", argv[2]); strcpy(b, argv[2]); for (i = 3; argv[i]; i++) { n = n+1+strlen(argv[i]); if (n > sizeof b) error("Overlong arg '%s'", argv[i]); strcat(b, " "); strcat(b, argv[i]); } strcat(b, "\n"); n = write(fd, b, strlen(b)); if (n == -1) error("error writing to socket"); for (;;) { n = read(fd, b, sizeof b); if (n == 0) break; if (n == -1) error("error reading from socket"); n = write(1, b, n); if (n == -1) error("error writing to stdout"); } close(fd); return 0; } pen-0.20.2/penctl.10000644000175000017500000001065711007013456010653 00000000000000.TH PENCTL 1 LOCAL .SH NAME penctl .SH SYNOPSIS .B penctl host:port command .SH EXAMPLE penctl lbhost:8888 roundrobin Turns off client tracking on the load balancer running on lbhost. .SH DESCRIPTION .I Penctl connects to the optional control socket on a pen load balancer. It reads commands from the command line, performs minimal syntax checking and sends them to pen. Replies, if any, are printed on stdout. The program can also be used through the cgi script penctl.cgi, which allows pen to be controlled from any web browser. .SH OPTIONS .TP \fIhost:port\fR Specifies a control port where the load balancer listens for commands. .SH COMMANDS .TP \fIacl N permit|deny sourceip [mask]\fR Adds an entry to access list N, where N is a number from 0 to 9. The source and mask addresses are in the usual dotted quad notation. If mask is omitted, it defaults to 255.255.255.255. .TP \fIno acl N\fR Deletes all entries from access list N. The resulting access list permits all traffic. .TP \fIascii\fR Communication dumps in ascii format (cf option -a). .TP \fIno ascii\fR Communication dumps in hex format. .TP \fIblacklist\fR Return current blacklist time in seconds. .TP \fIblacklist T\fR Set the blacklist time in seconds. .TP \fIblock\fR Do not make sockets nonblocking. .TP \fIno block\fR Make sockets nonblocking. .TP \fIclient_acl N\fR Check connecting clients against access list N (default 0). .TP \fIclients_max\fR Return max number of clients. .TP \fIconn_max\fR Return max number of simultaneous connections. .TP \fIcontrol\fR Return address and port where pen listens for control connections. .TP \fIcontrol_acl\fR Check accesses to the control port against access list N (default 0). .TP \fIdebug\fR Return current debug level. .TP \fIdebug N\fR Set debug level to N. .TP \fIdelayed_forward\fR Always wait for the next round of the main loop before forwarding data. Normally pen tries to do that immediately. .TP \fIno delayed_forward\fR Try to forward data immediately, to avoid the overhead of copying it to a temporary buffer and waiting for the next main loop round. .TP \fIexit\fR Exit. Only available if pen was started with the -X option. .TP \fIhash\fR Use a hash on the client IP address for initial server selection. .TP \fIno hash\fR Do not use a hash. .TP \fIhttp\fR Add X-Forwarded-For headers to http requests. .TP \fIno http\fR Do not add X-Forwarded-For headers. .TP \fIinclude FILE\fR Read commands from file. .TP \fIlisten\fR Return local address and port pen listens to for incoming client connections. .TP \fIlog\fR Show where pen is logging, if anywhere. .TP \fIlog FILE\fR Log to FILE. .TP \fImode\fR Write a summary of the current mode of operation. The listed modes are block, delayed_forward, hash, roundrobin, stubborn. .TP \fIno log\fR Turn off logging. .TP \fIpid\fR Return the process id of the running daemon .TP \fIprio\fR Use the priority based algorithm. .TP \fIno prio\fR Do not use the priority based algorithm. .TP \fIrecent [N]\fR Shows which clients have connected in the last N seconds (default 300). .TP \fIroundrobin\fR Use round-robin server selection without client tracking .TP \fIno roundrobin\fR .TP \fIserver N [ acl A | address A | port P | max M | hard H | blacklist T | weight W | prio P ]\fR Change acl, address, port, weight, priority and/or max connections for server N, or blacklist it for T seconds. .TP \fIservers\fR List address, port, weight, priority and max number of simultaneous connections for each remote server. .TP \fIstatus\fR Print status information in html format. .TP \fIstubborn\fR If the initial server selection is unavailable, close the client connection without trying another .TP \fIno stubborn\fR .TP \fItimeout\fR Return current connect timeout in seconds. .TP \fItimeout N\fR Set connect timeout to N seconds. .TP \fItracking N\fR Set tracking time, i.e. how long clients will be remembered. The default 0 will never expire clients based on time. .TP \fIweb_stats\fR Return file name of html status reports, if any. .TP \fIweb_stats FILE\fR Set the name of html status reports. .TP \fIno web_stats\fR Do not generate html status reports. .TP \fIweight\fR Use weight for server selection. .TP \fIno weight\fR Do not use weight for server selection. .TP \fIwrite [FILE]\fR Write the current configuration into a file which can be used to start pen. If FILE is omitted, the configuration is written into pen's original configuration file. .SH SEE ALSO pen(1) .SH AUTHOR Copyright (C) 2002-2008 Ulric Eriksson, . pen-0.20.2/Makefile.in0000664000175000017500000007271312267455112011364 00000000000000# Makefile.in generated by automake 1.14 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2013 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@ VPATH = @srcdir@ am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)' am__make_running_with_option = \ case $${target_option-} in \ ?) ;; \ *) echo "am__make_running_with_option: internal error: invalid" \ "target option '$${target_option-}' specified" >&2; \ exit 1;; \ esac; \ has_opt=no; \ sane_makeflags=$$MAKEFLAGS; \ if $(am__is_gnu_make); then \ sane_makeflags=$$MFLAGS; \ else \ case $$MAKEFLAGS in \ *\\[\ \ ]*) \ bs=\\; \ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \ esac; \ fi; \ skip_next=no; \ strip_trailopt () \ { \ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \ }; \ for flg in $$sane_makeflags; do \ test $$skip_next = yes && { skip_next=no; continue; }; \ case $$flg in \ *=*|--*) continue;; \ -*I) strip_trailopt 'I'; skip_next=yes;; \ -*I?*) strip_trailopt 'I';; \ -*O) strip_trailopt 'O'; skip_next=yes;; \ -*O?*) strip_trailopt 'O';; \ -*l) strip_trailopt 'l'; skip_next=yes;; \ -*l?*) strip_trailopt 'l';; \ -[dEDm]) skip_next=yes;; \ -[JT]) skip_next=yes;; \ esac; \ case $$flg in \ *$$target_option*) has_opt=yes; break;; \ esac; \ done; \ test $$has_opt = yes am__make_dryrun = (target_option=n; $(am__make_running_with_option)) am__make_keepgoing = (target_option=k; $(am__make_running_with_option)) pkgdatadir = $(datadir)/@PACKAGE@ pkgincludedir = $(includedir)/@PACKAGE@ pkglibdir = $(libdir)/@PACKAGE@ pkglibexecdir = $(libexecdir)/@PACKAGE@ am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd install_sh_DATA = $(install_sh) -c -m 644 install_sh_PROGRAM = $(install_sh) -c install_sh_SCRIPT = $(install_sh) -c INSTALL_HEADER = $(INSTALL_DATA) transform = $(program_transform_name) NORMAL_INSTALL = : PRE_INSTALL = : POST_INSTALL = : NORMAL_UNINSTALL = : PRE_UNINSTALL = : POST_UNINSTALL = : bin_PROGRAMS = pen$(EXEEXT) mergelogs$(EXEEXT) penctl$(EXEEXT) \ penlog$(EXEEXT) penlogd$(EXEEXT) pentest$(EXEEXT) subdir = . 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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; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, # MA 02111-1307, USA. PENCTL=penctl #set -x header() { if test -z "$1"; then TITLE=Penctl else TITLE="$1" fi cat << EOF $TITLE

$TITLE

EOF } footer() { cat << EOF EOF } errorpage() { header "Error" echo "$1" footer exit 0 } get_query() { echo "$QUERY_STRING"|tr '&' '\n'|grep "^$1="|cut -f 2 -d =|sed -e 's,%2F,/,g' -e 's,%..,,g' } statuspage() { test -z "$SERVER" && errorpage "No server" test -z "$PORT" && errorpage "No port" $PENCTL $SERVER:$PORT status 2> /tmp/penctl.cgi if test "$?" != "0"; then errorpage "`cat /tmp/penctl.cgi`" fi echo "
" echo '' echo '' echo '' echo "
" } # testmode modelist setting testmode() { echo "$1"|egrep "no(\+| )$2" > /dev/null 2>&1 if test "$?" = "0"; then echo "no" else echo "yes" fi } # setmode setting old new setmode() { if test "$2" != "$3"; then if test "$3" = "yes"; then $PENCTL $SERVER:$PORT $1 else $PENCTL $SERVER:$PORT no $1 fi fi } settingspage() { test -z "$SERVER" && errorpage "No server" test -z "$PORT" && errorpage "No port" OLDMODE=`get_query oldmode` if test ! -z "$OLDMODE"; then BLACKLIST=`get_query blacklist` test -z "$BLACKLIST" || $PENCTL $SERVER:$PORT blacklist $BLACKLIST DEBUG=`get_query debug` test -z "$DEBUG" || $PENCTL $SERVER:$PORT debug $DEBUG LOG=`get_query log` test -z "$LOG" || $PENCTL $SERVER:$PORT log $LOG TIMEOUT=`get_query timeout` test -z "$TIMEOUT" || $PENCTL $SERVER:$PORT timeout $TIMEOUT TRACKING=`get_query tracking` test -z "$TRACKING" || $PENCTL $SERVER:$PORT tracking $TRACKING WEB_STATS=`get_query web_stats` test -z "$WEB_STATS" || $PENCTL $SERVER:$PORT web_stats $WEB_STATS x=`testmode "$OLDMODE" block` BLOCK=`get_query block` setmode "block" "$x" "$BLOCK" x=`testmode "$OLDMODE" delayed_forward` DFORWARD=`get_query dforward` setmode "dforward" "$x" "$DFORWARD" x=`testmode "$OLDMODE" hash` HASH=`get_query hash` setmode "hash" "$x" "$HASH" # HTTP=`get_query http` # setmode "$OLDMODE" "$x" "$HTTP" x=`testmode "$OLDMODE" roundrobin` ROUNDROBIN=`get_query roundrobin` setmode "roundrobin" "$x" "$ROUNDROBIN" x=`testmode "$OLDMODE" stubborn` STUBBORN=`get_query stubborn` setmode "stubborn" "$x" "$STUBBORN" fi cat << EOF 1>&2 BLOCK="$BLOCK" DFORWARD="$DFORWARD" HASH="$HASH" ROUNDROBIN="$ROUNDROBIN" STUBBORN="$STUBBORN" EOF header "Global Settings" BLACKLIST=`$PENCTL $SERVER:$PORT blacklist` CLIENTS_MAX=`$PENCTL $SERVER:$PORT clients_max` CONN_MAX=`$PENCTL $SERVER:$PORT conn_max` DEBUG=`$PENCTL $SERVER:$PORT debug` LISTEN=`$PENCTL $SERVER:$PORT listen` LOG=`$PENCTL $SERVER:$PORT log` MODE=`$PENCTL $SERVER:$PORT mode` echo "

MODE=$MODE

" BLOCK=`testmode "$MODE" block` DFORWARD=`testmode "$MODE" delayed_forward` HASH=`testmode "$MODE" hash` ROUNDROBIN=`testmode "$MODE" roundrobin` STUBBORN=`testmode "$MODE" stubborn` PID=`$PENCTL $SERVER:$PORT pid` TIMEOUT=`$PENCTL $SERVER:$PORT timeout` TRACKING=`$PENCTL $SERVER:$PORT tracking` WEB_STATS=`$PENCTL $SERVER:$PORT web_stats` BLOCKCHECKED="" test x$BLOCK = xyes && BLOCKCHECKED=checked DFORWARDCHECKED="" test x$DFORWARD = xyes && DFORWARDCHECKED=checked HASHCHECKED="" test x$HASH = xyes && HASHCHECKED=checked ROUNDROBINCHECKED="" test x$ROUNDROBIN = xyes && ROUNDROBINCHECKED=checked STUBBORNCHECKED="" test x$STUBBORN = xyes && STUBBORNCHECKED=checked cat << EOF
Blacklist time
Max # of clients$CLIENTS_MAX
Max # of connections$CONN_MAX
Debug level
Listening port$LISTEN
Logging destination
Blocking
Delayed forward
Hash
Roundrobin
Stubborn
Process ID$PID
Connect timeout
Client tracking
Web status report
EOF footer } managepage() { test -z "$SERVER" && errorpage "No server" test -z "$PORT" && errorpage "No port" N=0 A=`get_query "A.$N"` while test ! -z "$A"; do P=`get_query "P.$N"` M=`get_query "M.$N"` H=`get_query "H.$N"` T=`get_query "T.$N"` x="" test -z "$A" || x="$x address $A" test -z "$P" || x="$x port $P" test -z "$M" || x="$x max $M" test -z "$H" || x="$x hard $H" test -z "$T" || x="$x blacklist $T" test -z "$x" || $PENCTL $SERVER:$PORT server $N $x # N=`echo $N+1|bc` N=$((N+1)) A=`get_query "A.$N"` done header "Manage Servers" cat << EOF
Server Address Port Conn Max Hard Sx Rx Blacklist EOF $PENCTL $SERVER:$PORT servers | while read N a A p P c C m M h H s S r R; do cat << EOF
$N $C $S $R EOF done cat << EOF
EOF } mainpage() { header cat << EOF
Server
Port
EOF footer } echo Content-type: text/html echo SERVER=`get_query server` PORT=`get_query port` MODE=`get_query mode` case "$MODE" in Status ) statuspage ;; Manage ) managepage ;; Settings ) settingspage ;; * ) mainpage ;; esac pen-0.20.2/compile0000755000175000017500000001624512236501005010656 00000000000000#! /bin/sh # Wrapper for compilers which do not understand '-c -o'. scriptversion=2012-10-14.11; # UTC # Copyright (C) 1999-2013 Free Software Foundation, Inc. # Written by Tom Tromey . # # 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. 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 file is maintained in Automake, please report # bugs to or send patches to # . nl=' ' # We need space, tab and new line, in precisely that order. Quoting is # there to prevent tools from complaining about whitespace usage. IFS=" "" $nl" file_conv= # func_file_conv build_file lazy # Convert a $build file to $host form and store it in $file # Currently only supports Windows hosts. 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EOF exit $? ;; -v | --v*) echo "compile $scriptversion" exit $? ;; cl | *[/\\]cl | cl.exe | *[/\\]cl.exe ) func_cl_wrapper "$@" # Doesn't return... ;; esac ofile= cfile= for arg do if test -n "$eat"; then eat= else case $1 in -o) # configure might choose to run compile as 'compile cc -o foo foo.c'. # So we strip '-o arg' only if arg is an object. eat=1 case $2 in *.o | *.obj) ofile=$2 ;; *) set x "$@" -o "$2" shift ;; esac ;; *.c) cfile=$1 set x "$@" "$1" shift ;; *) set x "$@" "$1" shift ;; esac fi shift done if test -z "$ofile" || test -z "$cfile"; then # If no '-o' option was seen then we might have been invoked from a # pattern rule where we don't need one. That is ok -- this is a # normal compilation that the losing compiler can handle. If no # '.c' file was seen then we are probably linking. That is also # ok. exec "$@" fi # Name of file we expect compiler to create. cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'` # Create the lock directory. # Note: use '[/\\:.-]' here to ensure that we don't use the same name # that we are using for the .o file. Also, base the name on the expected # object file name, since that is what matters with a parallel build. lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d while true; do if mkdir "$lockdir" >/dev/null 2>&1; then break fi sleep 1 done # FIXME: race condition here if user kills between mkdir and trap. trap "rmdir '$lockdir'; exit 1" 1 2 15 # Run the compile. "$@" ret=$? if test -f "$cofile"; then test "$cofile" = "$ofile" || mv "$cofile" "$ofile" elif test -f "${cofile}bj"; then test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" fi rmdir "$lockdir" exit $ret # Local Variables: # mode: shell-script # sh-indentation: 2 # 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: pen-0.20.2/HOWTO0000644000175000017500000002554610332213017010125 00000000000000HTTP ---- pen -l pen.log -p pen.pid lbhost:80 host1:80 host2:80 If pen is running on one of the web servers, it might seem like a good idea to simply use an alternative port for the web server process, reusing the IP address. Unfortunately, that doesn't work very well. Look at this (simplified) example: sh-2.05# pen lbhost:80 lbhost:8080 sh-2.05# telnet lbhost 80 Trying 127.0.0.1... Connected to lbhost. Escape character is '^]'. GET /bb 301 Moved Permanently

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Apache/1.3.14 Server at lbhost Port 8080
Connection closed by foreign host. This will cause the client to attempt to contact the web server directly, which may not be possible depending on firewall configuration and is certainly not desirable since it defeats any load balancing attempts from pen. The solution is to bind two addresses to the server running pen, and use one address for pen and the other for the web server. Like this: pen address1:80 address2:80 server2:80 Here, address1 and address2 refer to the same server, while server2 refers to another server. The programs penlog and penlogd are used to combine the web server logs into a single file which can be used to calculate statistics. Penlog runs on each of the web servers. It reads log entries from stdin and sends them over the network to the host running penlogd. For Apache, this is accomplished by adding a line similar to this to httpd.conf: CustomLog "|/usr/local/bin/penlog loghost 10000" common For other web servers, the procedure is different. If the server cannot write its logs to a pipe, this kludge may actually work: tail -f /path/to/logfile | penlogd loghost 10000 The command line to pen must also be altered to indicate that the logs should go to the penlogd server rather than a file. This is accomplished using the -l loghost:10000 option. The log file pen.log is used to combine the web server logs into a single file which can be used to calculate statistics. Example: mergelogs -p pen.log \ 10.0.0.1:access_log.host1 10.0.0.2:access_log.host2 \ > access_log The program mergelogs is distributed with pen. Use matching versions of pen and mergelogs to ensure that the log file format is compatible. 10.0.0.1 and 10.0.0.2 are the IP addresses of host1 and host2. The log files access_log.host1 and access_log.host2 are Apache access log files in combined or common format. The resulting access_log is in the same format as the input files. If the log file will be used to calculate visitor statistics, you probably want host names rather than IP addresses. This can be accomplished by forcing the web server to do hostname lookups on the clients. This harms performance since the lookups are slow. A better solution is to use a separate program to process the log file. One such program is webresolve, which is usually run from the splitwr script to perform many lookups in parallel. Example: splitwr access_log > access_log.resolved Webresolve is available from http://siag.nu/webresolve/. HTTPS ----- pen -l pen.log -p pen.pid lbhost:443 host1:443 host2:443 Otherwise identical to http (for our purposes), https uses port 443. Using pen for the ssl encapsulation: pen -l pen.log -p pen.pid -E mycert.pem lbhost:443 host1:80 host2:80 HTTP + HTTPS ------------ pen -l pen80.log -p pen80.pid -h lbhost:80 host1:80 host2:80 pen -l pen443.log -p pen443.pid -h lbhost:443 host1:443 host2:443 If we are using http and https in parallel for a single site and need to make sure that requests go to the same server for both protocols, we use the -h (hash) option. Note that it is still possible for a client to end up with a split connection if e.g. http is down on host1 and https is down on host2. The server selection can be made completely deterministic by adding the -s option. Pen will then stubbornly refuse to fail over to another server if the first choice is unavailable. Obviously, this means the site will fail for some clients if either http or https is down on any server, which is unsatisfactory. A better solution is to use a single protocol for all communication, or design the application such that split connections do not matter. For example, serve static content such as images over http. SMTP ---- pen -l pen.log -p pen.pid -r lbhost:25 host1:25 host2:25 This is straightforward enough, with the added twist that all connections to host1 and host2 appear to come from lbhost. It is therefore important that care be taken so that the setup can't be used as an open relay for spam. An example use for load balancing with smtp is for large sites with a high volume of outgoing mail. FTP --- pen -l pen.log -p pen.pid lbhost:21 host1:21 host2:21 The ftp protocol has quirks that makes load balancing more difficult than many other protocols. Details in RFC959, but here is an example from a pen debug session: copy_up(0) 23: PORT 127,0,0,1,12,212 copy_down(0) 30: 200 PORT command successful. copy_up(0) 18: RETR loadlin.exe copy_down(0) 72: 150 Opening BINARY mode data connection for loadlin.exe (32177 bytes). copy_down(0) 24: 226 Transfer complete. Notice how the last two entries claim that the transfer is first "opening", and then "complete" with no intermediary step. In other words, the initial connection is just a command telnet stream. For the data transfer, the client opens a port of its own and the server connects directly there, bypassing the load balancer. There isn't necessarily anything particularly wrong about that, except that the server will connect from an address that the client doesn't expect, and it will have to connect *to* an address that is different from the peer in the command stream. In addition, it may not work if the server is behind a firewall and it most certainly won't work if pen is acting as the firewall. A solution would be to intercept the PORT command, open a connection there, listen to a socket of our own and send a new PORT command to the server instead of the one the client sent. We would also need to track the command stream during the data transfer, and check for things like ABOR and STAT. And we'd have to implements all kinds of workarounds for buggy clients and servers. Messy indeed, and pen doesn't even try. Browse through an ftp client some time; it's entertaining to see what programmers think of the protocol. Here is a recipe for ftp load balancing that is portable, works and is easy to implement. First a snippet from /etc/hosts. The IP addresses are supposed to be public addresses. It is possible to play tricks with NAT to remove that requirement, but that is beyond the scope of this document. 123.123.123.1 lbhost 123.123.123.2 host1 123.123.123.3 host2 ftp servers are running on host1 and host2. Use this command to start pen on lbhost: pen -l pen.log -p pen.pid lbhost:21 host1:21 host2:21 Incoming connections from clients are distributed to host1 and host2, transparently to the user. Outgoing connections from host1 and host2 bypass lbhost. If there is a firewall between the servers and the Internet, it must permit incoming traffic to lbhost on port 21 and outgoing traffic from host1 and host2. This can be prevented from working if the client is behind a firewall that does its own stateful session tracking (for example, setting up temporary rules that let the server access the client on the port given in the PORT command), but there's little or nothing we can do about that. Such schemes break anyway if the server has multiple IP addresses, load balancing or not. Picky servers that refuse to set up data streams that bypass the load balancer won't work either, but then we at least have the option to replace the server. The stock Solaris ftpd is fine; wu-ftpd 2.6.0 is not. POP3 ---- The pop3 service normally runs from inetd. In that case, it is not possible to use multiple IP addresses to allow pen and the pop3 server to run on the same host. However, there's nothing to stop us from using multiple ports. Add this to /etc/services: pop3-pen 1110/tcp And change /etc/inetd.conf like this: # pop3 stream tcp nowait root /usr/sbin/tcpd in.pop3d pop3-pen stream tcp nowait root /usr/sbin/tcpd in.pop3d Note how the old entry for pop3 is commented out. Restart inetd and run pen -p pen.pid pop3 localhost:1110 otherhost:pop3 Pen will listen to the pop3 port and distribute incoming requests to the local pop3 server running on port 1110 and to the pop3 server running on "otherhost" on the standard port. LDAP ---- (This was sent as a reply to a question is pen could handle load balancing and failover for a group of ldap servers.) As far as I know, LDAP is a simple tcp based protocol. The following experiment on my laptop was successful: 1. Install OpenLDAP 2. Run slapd like this: /usr/local/libexec/slapd -d 255 3. Run pen like this: pen -d -d -f 3890 localhost:389 4. Run ldapsearch like this: ldapsearch -H ldap://localhost:3890 \ -x -b '' -s base '(objectclass=*)' namingContexts Slapd and pen spewed lots of debugging info and ldapsearch returned: 8<--- # # filter: (objectclass=*) # requesting: namingContexts # # dn: namingContexts: o=Qbranch,c=SE # search result search: 2 result: 0 Success # numResponses: 2 # numEntries: 1 8<--- which was what I expected. Inspired by this success, I repeated the test: 8<--- /usr/local/libexec/slapd -d 255 -h ldap://localhost:389/ /usr/local/libexec/slapd -d 255 -h ldap://localhost:390/ pen -d -d -f 3890 localhost:389 localhost:390 ldapsearch -H ldap://localhost:3890 \ -x -b '' -s base '(objectclass=*)' namingContexts 8<--- Got a reply. Repeated a few times, then pressed Ctrl-C on the slapd that was serving the replies. Did another ldapsearch and got a reply from the other slapd. As far as I can see, pen handles LDAP load balancing and failover just fine. VRRP ---- It is possible to install pen on two load balancers and use vrrp to get failover in case one of them goes down. To do this, you need two servers (obviously), pen and Jerome Etienne's vrrpd for Linux. Install pen and vrrpd on both servers. Start pen on both servers, using all the same parameters and listening on all addresses. Finally start vrrpd, again using the same parameters on both hosts. Example, using debugging output to show what is going on: pen -df 2323 192.168.1.240:23 vrrpd -i eth0 -v 1 192.168.1.199 Now try telnetting to 192.168.1.199 on port 2323. You should get connected through pen on one of the servers. Log out and stop vrrpd on the active server. Again telnet to 192.168.1.199 port 2323. You should get connected again, this time through pen on the other server. Note that this doesn't provide perfect fault tolerance. Vrrpd only checks if the other server is alive, but it doesn't care if pen is responding. Also note that the legal status of vrrp is unclear, as both Cisco and IBM claim to hold patents on the technology. pen-0.20.2/AUTHORS0000644000175000017500000000011412243124305010336 00000000000000Ulric Eriksson UDP support contributed by the Zen project. pen-0.20.2/install-sh0000755000175000017500000003325512236501005011304 00000000000000#!/bin/sh # install - install a program, script, or datafile scriptversion=2011-11-20.07; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the # following copyright and license. # # Copyright (C) 1994 X Consortium # # 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 # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # # Except as contained in this notice, the name of the X Consortium shall not # be used in advertising or otherwise to promote the sale, use or other deal- # ings in this Software without prior written authorization from the X Consor- # tium. # # # FSF changes to this file are in the public domain. # # Calling this script install-sh is preferred over install.sh, to prevent # 'make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. nl=' ' IFS=" "" $nl" # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit=${DOITPROG-} if test -z "$doit"; then doit_exec=exec else doit_exec=$doit fi # Put in absolute file names if you don't have them in your path; # or use environment vars. chgrpprog=${CHGRPPROG-chgrp} chmodprog=${CHMODPROG-chmod} chownprog=${CHOWNPROG-chown} cmpprog=${CMPPROG-cmp} cpprog=${CPPROG-cp} mkdirprog=${MKDIRPROG-mkdir} mvprog=${MVPROG-mv} rmprog=${RMPROG-rm} stripprog=${STRIPPROG-strip} posix_glob='?' initialize_posix_glob=' test "$posix_glob" != "?" || { if (set -f) 2>/dev/null; then posix_glob= else posix_glob=: fi } ' posix_mkdir= # Desired mode of installed file. mode=0755 chgrpcmd= chmodcmd=$chmodprog chowncmd= mvcmd=$mvprog rmcmd="$rmprog -f" stripcmd= src= dst= dir_arg= dst_arg= copy_on_change=false no_target_directory= usage="\ Usage: $0 [OPTION]... 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(umask $mkdir_umask && eval "\$doit_exec \$mkdirprog $prefixes") || test -d "$dstdir" || exit 1 obsolete_mkdir_used=true fi fi fi if test -n "$dir_arg"; then { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 else # Make a couple of temp file names in the proper directory. dsttmp=$dstdir/_inst.$$_ rmtmp=$dstdir/_rm.$$_ # Trap to clean up those temp files at exit. trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 # Copy the file name to the temp name. (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && # and set any options; do chmod last to preserve setuid bits. # # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $cpprog $src $dsttmp" command. # { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && # If -C, don't bother to copy if it wouldn't change the file. if $copy_on_change && old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && eval "$initialize_posix_glob" && $posix_glob set -f && set X $old && old=:$2:$4:$5:$6 && set X $new && new=:$2:$4:$5:$6 && $posix_glob set +f && test "$old" = "$new" && $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 then rm -f "$dsttmp" else # Rename the file to the real destination. $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || # The rename failed, perhaps because mv can't rename something else # to itself, or perhaps because mv is so ancient that it does not # support -f. { # Now remove or move aside any old file at destination location. # We try this two ways since rm can't unlink itself on some # systems and the destination file might be busy for other # reasons. In this case, the final cleanup might fail but the new # file should still install successfully. { test ! -f "$dst" || $doit $rmcmd -f "$dst" 2>/dev/null || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } } || { echo "$0: cannot unlink or rename $dst" >&2 (exit 1); exit 1 } } && # Now rename the file to the real destination. $doit $mvcmd "$dsttmp" "$dst" } fi || exit 1 trap '' 0 fi done # 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: pen-0.20.2/ChangeLog0000644000175000017500000003427612267455072011076 00000000000000 130120 Added "special exception" clause for linking with OpenSSL. Released 0.20.2. 131127 Penlog ipv6 compatible. 131126 Modernized automake configuration. Penctl ipv6 compatible. 131123 Updated autoconf to 2.69. Released 0.20.1. 131122 Updated SSL code. Protocol ssl2 removed. Default changed to tls1. Released 0.20.0. 131120 Added UDP patch from Zen. Released 0.19.0. 080517 Added patch from Debian that fixes some issues with penctl.cgi. Released 0.18.0. 080503 Priority based server selection algorithm. 080501 Patch from Stephen P. Schaefer fixes several issues in write_cfg. In the server_by_weight function, multiply current connections by WEIGHT_FACTOR to make the selection mo fine grained when the number of connections is small. Released 0.17.3. 080326 Patch from Dana Contreras: send stdio to /dev/null after forking. Fixed a bunch of cosmetic signedness compiler warnings. 070912 Added sanity check to init() to make sure that servers_max is large enough for the number of servers specified on the command line. Released 0.17.2. 070829 Faster string duplication courtesy of Nigel Horne. 070502 Updated automake links. 070212 Updated INSTALL with instructions for increasing the number of connections on Windows. 061204 Include server weight in response to "penctl servers" command. Set server weight on command line. Server is specified as host:port:maxconn:hard:weight. 060627 Bugfix by Chris Elsworth: server_by_weight would never consider blacklisted servers, which kept them blacklisted indefinitely. Released 0.17.1. 051230 Added code by Chris Elsworth for kqueue support. Configure with --with-kqueue to enable. Released 0.17.0. 051215 Changed the configure option for ssl to --with-experimental-only-ssl. Released 0.16.0. 040709 Added an "abuse server" for naughty clients that have been denied access by an acl. Works similar to the emergency server, use command-line option "-B host:port" to enable. 040706 Servers can be assigned different weights to account for differing capacity. New -W command-line option. New penctl commands: server S weight W (assign weight to server) weight (use weight for server selection) no weight (do not use weight for server selection) Cleaned up the logic in add_client so the weighted server selection can be used without client tracking. Released 0.15.0. 040624 Some performance enhancing changes: New variable connections_used remembers the number of used slots in conns[]. It is incremented by store_conn and decremented by close_conn. This allows the main loop to only accept new connections if there are empty slots in conns[], which is much better than accepting the connection only to immediately close it because we can't handle it. New variable connections_last remembers the last used slot in conns[]. This allows us to scan for empty slots much faster in store_conn when there are many simultaneous connections. Released 0.14.0. 040622 Documented the procedure to change FD_SETSIZE on Linux in INSTALL. 040604 Documented the include command in the penctl manpage. 040527 Fixed SSL so it works in nonblocking mode, except that it doesn't work anyway. Moved listenfd and ctrlfd out of main. 040428 Highly experimental SSL code in pen.c. Updated manpage with the new options. Added https example to HOWTO. Released 0.13.0. 040403 Replaced signal with sigaction so connect() to nonexisting servers can be interrupted and not restarted. Released 0.12.3. 040318 Bugfix by Andreas Wrede: Running pen with -H to generate X-Forwarded-For headers causes POST request data sections to be dropped, if they are in the same packet as the POST header (rather than a continuation packet) and the if the POST data contains binary zeros. This is almost always the case with Internet Explorer 6. Mozilla and friends send the data of a POST request in a separate packet, so the problem does not show up there. 040310 Changed setlinebuf to setvbuf in penlogd.c Released 0.12.2. 040201 Bugfix: rewrite_request would only add the X-Forwarded-For header for the first request. Released 0.12.1. 040104 Removed the reference to mergelogs from the README and added one to penlogd instead. 031023 Released 0.12.0. 031022 Penlogd: sscanf would read 100 bytes + terminating nul into a buffer of size 100. Now reads 99+nul. Spotted by Oezguer Kesim. 031021 Let tracking time be set through penctl.cgi. In do_cmd, "no log": only close the logfile if it is open. New penctl command, "write [FILE]" writes current configuration to a file. If FILE is omitted, overwrite the original configuration file (-F option). 031017 Pen: Time based expiration of tracked clients. Default is 0 seconds = never expire. Added -T option to control expiry time. Also added penctl command "tracking N". Penlogd: zero-terminate results from recvfrom. 031013 In penlogd.c: don't complain if recvfrom is interrupted by signal. 031013 Released 0.11.1. 031011 Use sigaction rather than signal in penlogd. Check for inet_aton in libresolv (needed for Solaris). Install documentation into ${prefix}/doc/pen (can be changed using the --with-doc= configuration option). Added tgz target to Makefile.am for Slackware packaging. 030922 Added an "include" keyword to the command interface, so the configuration can be split into several files. Added access control lists, numbered 0 to 9. The command syntax to define them are: acl N permit|deny ipaddress mask create acl no acl N delete acl client_acl N bind clients to acl control_acl N bind control interface to acl server S acl N who can use server S All access lists start out empty, defaulting to permit anything. 030910 In rewrite_request: don't add an X-Forwarded-For: if there already is one. 030906 Added a configuration file (-F option) with commands in penctl format. It is read after processing all command line arguments and also when a HUP signal is received. 030905 Updated pen manpage to reflect the new -X and -S options. In rewrite_request: look for \n\n if we can't find \r\n\r\n. Some clients do that, according to Steve Hall . Moved everything from CONTROL into penctl.1. Also added the exit command to penctl.1. 030905 Released 0.10.3. 030904 Preallocate slots for servers that can be dynamically added and removed using the control interface, up to a maximum number determined by the -S option (default 16). 030821 A patch from Anders Nordby sets the group as well as user id when running pen with the -u option. 030821 Released 0.10.2. 030820 A patch from Mikko Ruuska (mikko.ruuskaxi at solidtech.com) adds an exit command to pen's control port interface. 030820 Patch for pen.c by Andreas Wrede , fixing the following bugs: The message indicating a failed server is re-issued on every attempt, due to a inverted if-test. The attached patch issues the messages only the first time a server fails and it shows when we will retry the connection. It also suppresses multiple "Using emergency server" messages. 030820 #include in penlog.c. 030820 Patch for penlogd.c by Branson Matheson : - pen sends two lines for every log.. penlogd only needs one to function. - added a -b ... unbuffer to the opts for penlogd so that you can actually see the lines as they come out. - changed one of the dubugs to so post processing of the input data. 030407 Bugs uncovered by Charlie Reitsma : HOWTO incorrectly specified penctl in place of penlog in Apache configuration example, and using penctl to redirect log to penlogd didn't work. Avoid bogus header rewriting in rewrite_request. Released 0.10.1. 030210 New penctl commands "http" and "no http" to toggle -H. 030208 New option -H adds X-Forwarded-For header to http requests. 020717 Patches from Patroklos G. Argyroudis : - check getopt() calls against -1 and not EOF - fix for a possible format string in pen.c 020711 Ported to Darwin/MacOS X. Released 0.9.4. 020705 New penctl command: recent [seconds] displays clients that have connected recently (default five minutes), along with number of connects, transmitted and received data. 020702 Buffer overflow in netlog. See comment in pen.c. Added options -j (for chroot) and -u (for setuid) to pen and penlogd. See manpages. 020627 Fixed an error which could throw penlogd into an endless loop if a udp packet was lost at the crucial moment. 020626 Pedantic checking of memory allocations and buffer sizes. 020618 Penlogd: added option -n to adjust the number of cached log entries from Pen. 020614 Added options -d, -f, -l and -p to penlogd. They do the same as in pen. Also added signal handlers for TERM and HUP; these too do the same as in pen. Updated penlogd manpage. Updated www section in HOWTO to use penlog rather than mergelogs. 020613 Added penlog.c to log over a network using Apaches reliable piped logs. A companion log server, penlogd.c, consolidates logs from Pen and from all web servers into a single file. Added the necessary code to Pen log over the network. 020610 Wrote penctl.cgi, a web wrapper for penctl. 020609 Wrote a new version of the main loop, using poll() instead of select(). Added configuration option --with-poll to enable. Also turned redefinition of FD_SETSIZE into a configuration option --with-fd_setsize=N. Updated installation instructions in INSTALL. 020605 Added optional hard limit to the number of connections to each server. Timestamps in debug log entries. Released 0.8.0. 020604 Added "server of last resort" (-e option) which is only used when all other servers are unavailable. (Andreas Wrede) 020528 Several enhancements and bugfixes by Andreas Wrede: In webstats: changed CLIENTS_MAX to clients_max and CONNECTIONS_MAX to connections_max. Show time in human-readable format rather than seconds since 1970. Changed byte counters from unsigned long to unsigned long long. Fixed file descriptor leak: The connection wasn't closed when the connection table was full. Moved stats generation and log restart out of the signal handlers and into the main loop. If a client went away before receiving all its data (large files), the remaining portion would be sent to the next client occupying the same slot. Added pointers in connection structure to avoid having to memcpy the buffers in flush_up/flush_down. Released 0.7.0. 020507 Updated the penctl manpage to reflect reality. Released 0.6.3. 020417 Added -D switch to make copy_up and copy_down *always* store data in a temporary buffer and wait for the next round through the main loop before passing it on to the receiving end. The penctl command for this is "delayed_forward". When making sockets nonblocking (through fcntl(..., O_NONBLOCK)), make sure that any existing flags are not reset in the process. Important bugfix: each failed connection attempt in try_server would result in one socket leaked because we returned without closing it. 020413 Figured out why nonblocking mode was slower than blocking. Fixed. 020411 Added penctl, a simple user interface to the control protocol. 020324 Cancel timeout if it isn't needed. 020115 Added LDAP info in the HOWTO. Added the flush_up/flush_down bugfix from 0.5.0 again. Released 0.6.1. 020111 Moved #include before #include Replaced the call to setpgrp with setsid. Transformed mergelogs into ultimately portable ANSI C (almost). Thanks to Mike Dugas for help with porting to FreeBSD 4.4-RELEASE. 020110 Rewrote mergelogs completely. It will now never discard a web server log entry, and it tries much harder to locate a good match in the pen log. It deals with log entries that are out of order and servers with unsynchronized clocks and/or different time zones. The -l (lag) option is no more. Removed the -r (rejects) option, since we no longer reject anything. Released 0.6.0 010915 Made the use of daemon() optional. Added the cgi script penstats to update and display statistics. Set current in store_conn. Released 0.5.0. 010914 Statistics in HTML format (Riccard Åkerman). Tested pen on HP-UX 10.20. 010913 Released 0.4.0. 010912 When storing part of the buffer for a renewed attempt, store the *end*, not the beginning. Affects copy_up and copy_down. Autoconf. Use daemon() if available. Make sure that we don't try to close uninitialized file handles in add_client. New option -n to not make sockets nonblocking (mainly useful for debugging). 010911 Make sure that remaining data is stored away when we get EAGAIN in copy_up. Released 0.3.3. 010909 Added -p argument to store process id in a file (Andreas Wrede). Made the sockets nonblocking. Handle EAGAIN in copy_up/down. Released 0.3.2. 010908 Ignore SIGPIPE. Released 0.3.1. 010827 Option -h uses a hash on the client IP address for the initial server selection. Option -s ("stubborn") prevents failover to another server if the initial choice is unavailable. 010824 Use getport for the local port as well. 010820 Append to the logfile rather than overwriting it. Released 0.2.0. 010817 Server selection algorithm rewritten in a cleaner, simpler way. Blacklist nonresponding servers for a selectable period of time. Optional "plain" roundrobin without client tracking. (options -b and -r, see manpage). Log to syslog if we are running in the background. 010814 Installed pen on siag.nu, which now load-balances itself. Apache runs on port 8080, pen on 80. Seems to work (tm). 010813 Added description of options to pen.1 and mergelogs.1. Script to guess libraries. 010812 Fixed typo (webmerge -> mergelogs) in pen.1. 010809 Added mergelogs, a program to match pen logs against web server logs and merge the results into one log file with the correct client addresses. Released 0.1.0. 010808 Print statistics on stderr when sent USR1 signal. Ported to Solaris, i.e. verified that it works ;-). Logging. Reopen log file when sent HUP signal. Exit cleanly when sent TERM signal. 010807 Wrote a manpage. 010803 Completed the conversion to non-forking, selecting mode. Works really well now, with very low CPU utilization even with many simultaneous connections. 010729 Rewrote the program to not fork. 010722 Prettied up the source. 001218 Updated the README. 001022 Rewrote the load balancing algorithm. pen-0.20.2/config.sub0000755000175000017500000010535412201675101011264 00000000000000#! /bin/sh # Configuration validation subroutine script. # Copyright 1992-2013 Free Software Foundation, Inc. timestamp='2013-08-10' # 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 with a ChangeLog entry to config-patches@gnu.org. # # 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: # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD # 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 $0 [OPTION] ALIAS Canonicalize a configuration name. Operation modes: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to ." version="\ GNU config.sub ($timestamp) Copyright 1992-2013 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 $maybe_os in nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ knetbsd*-gnu* | netbsd*-gnu* | \ kopensolaris*-gnu* | \ storm-chaos* | os2-emx* | rtmk-nova*) os=-$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/'` ;; -windowsnt*) os=`echo $os | sed -e 's/windowsnt/winnt/'` ;; -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 \ | be32 | be64 \ | bfin \ | c4x | c8051 | clipper \ | d10v | d30v | dlx | dsp16xx \ | epiphany \ | fido | fr30 | frv \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | hexagon \ | i370 | i860 | i960 | ia64 \ | ip2k | iq2000 \ | 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 \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipsr5900 | mipsr5900el \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | moxie \ | mt \ | msp430 \ | nds32 | nds32le | nds32be \ | nios | nios2 | nios2eb | nios2el \ | ns16k | ns32k \ | open8 \ | or1k | or32 \ | pdp10 | pdp11 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle \ | pyramid \ | rl78 | rx \ | score \ | 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 \ | spu \ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ | ubicom32 \ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ | we32k \ | 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 ;; m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip) basic_machine=$basic_machine-unknown os=-none ;; m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) ;; ms1) basic_machine=mt-unknown ;; strongarm | thumb | xscale) basic_machine=arm-unknown ;; xgate) basic_machine=$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-* \ | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | c8051-* | clipper-* | craynv-* | cydra-* \ | d10v-* | d30v-* | dlx-* \ | elxsi-* \ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | hexagon-* \ | i*86-* | i860-* | i960-* | ia64-* \ | ip2k-* | iq2000-* \ | 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-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipsr5900-* | mipsr5900el-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nds32-* | nds32le-* | nds32be-* \ | nios-* | nios2-* | nios2eb-* | nios2el-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | open8-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ | pyramid-* \ | 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-* \ | 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-unknown 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 ;; 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* | dpx2*-bull) basic_machine=m68k-bull os=-sysv3 ;; 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 ;; hppa-next) os=-nextstep3 ;; 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 ;; i386-vsta | 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 ;; m68knommu) basic_machine=m68k-unknown os=-linux ;; m68knommu-*) basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` os=-linux ;; m88k-omron*) basic_machine=m88k-omron ;; 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 ;; 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 ;; 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 | ppc-le | powerpc-little) 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 | ppc64-le | powerpc64-little) 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 ;; sh) basic_machine=sh-hitachi os=-hms ;; sh5el) basic_machine=sh5le-unknown ;; sh64) basic_machine=sh64-unknown ;; sparclite-wrs | 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 ;; 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 ;; z8k-*-coff) basic_machine=z8k-unknown os=-sim ;; z80-*-coff) basic_machine=z80-unknown os=-sim ;; none) basic_machine=none-none os=-none ;; # Here we handle the default manufacturer of certain CPU types. It is in # some cases the only manufacturer, in others, it is the most popular. w89k) basic_machine=hppa1.1-winbond ;; op50n) basic_machine=hppa1.1-oki ;; op60c) basic_machine=hppa1.1-oki ;; romp) basic_machine=romp-ibm ;; mmix) basic_machine=mmix-knuth ;; rs6000) basic_machine=rs6000-ibm ;; vax) basic_machine=vax-dec ;; pdp10) # there are many clones, so DEC is not a safe bet basic_machine=pdp10-unknown ;; pdp11) basic_machine=pdp11-dec ;; we32k) basic_machine=we32k-att ;; sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele) basic_machine=sh-unknown ;; sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v) basic_machine=sparc-sun ;; cydra) basic_machine=cydra-cydrome ;; orion) basic_machine=orion-highlevel ;; orion105) basic_machine=clipper-highlevel ;; mac | mpw | mac-mpw) basic_machine=m68k-apple ;; pmac | pmac-mpw) basic_machine=powerpc-apple ;; *-unknown) # Make sure to match an already-canonicalized machine name. ;; *) echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 exit 1 ;; esac # Here we canonicalize certain aliases for manufacturers. case $basic_machine in *-digital*) basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'` ;; *-commodore*) basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'` ;; *) ;; esac # Decode manufacturer-specific aliases for certain operating systems. if [ x"$os" != x"" ] then case $os in # First match some system type aliases # that might get confused with valid system types. # -solaris* is a basic system type, with this one exception. -auroraux) os=-auroraux ;; -solaris1 | -solaris1.*) os=`echo $os | sed -e 's|solaris1|sunos4|'` ;; -solaris) os=-solaris2 ;; -svr4*) os=-sysv4 ;; -unixware*) os=-sysv4.2uw ;; -gnu/linux*) os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` ;; # First accept the basic system types. # The portable systems comes first. # Each alternative MUST END IN A *, to match a version number. # -sysv* is not here because it comes later, after sysvr4. -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\ | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \ | -sym* | -kopensolaris* | -plan9* \ | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ | -aos* | -aros* \ | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \ | -bitrig* | -openbsd* | -solidbsd* \ | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ | -chorusos* | -chorusrdb* | -cegcc* \ | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \ | -linux-newlib* | -linux-musl* | -linux-uclibc* \ | -uxpv* | -beos* | -mpeix* | -udk* \ | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \ | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \ | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*) # Remember, each alternative MUST END IN *, to match a version number. ;; -qnx*) case $basic_machine in x86-* | i*86-*) ;; *) os=-nto$os ;; esac ;; -nto-qnx*) ;; -nto*) os=`echo $os | sed -e 's|nto|nto-qnx|'` ;; -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \ | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \ | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*) ;; -mac*) os=`echo $os | sed -e 's|mac|macos|'` ;; -linux-dietlibc) os=-linux-dietlibc ;; -linux*) os=`echo $os | sed -e 's|linux|linux-gnu|'` ;; -sunos5*) os=`echo $os | sed -e 's|sunos5|solaris2|'` ;; -sunos6*) os=`echo $os | sed -e 's|sunos6|solaris3|'` ;; -opened*) os=-openedition ;; -os400*) os=-os400 ;; -wince*) os=-wince ;; -osfrose*) os=-osfrose ;; -osf*) os=-osf ;; -utek*) os=-bsd ;; -dynix*) os=-bsd ;; -acis*) os=-aos ;; -atheos*) os=-atheos ;; -syllable*) os=-syllable ;; -386bsd) os=-bsd ;; -ctix* | -uts*) os=-sysv ;; -nova*) os=-rtmk-nova ;; -ns2 ) os=-nextstep2 ;; -nsk*) os=-nsk ;; # Preserve the version number of sinix5. -sinix5.*) os=`echo $os | sed -e 's|sinix|sysv|'` ;; -sinix*) os=-sysv4 ;; -tpf*) os=-tpf ;; -triton*) os=-sysv3 ;; -oss*) os=-sysv3 ;; -svr4) os=-sysv4 ;; -svr3) os=-sysv3 ;; -sysvr4) os=-sysv4 ;; # This must come after -sysvr4. -sysv*) ;; -ose*) os=-ose ;; -es1800*) os=-ose ;; -xenix) os=-xenix ;; -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) os=-mint ;; -aros*) os=-aros ;; -zvmoe) os=-zvmoe ;; -dicos*) os=-dicos ;; -nacl*) ;; -none) ;; *) # Get rid of the `-' at the beginning of $os. os=`echo $os | sed 's/[^-]*-//'` echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2 exit 1 ;; esac else # Here we handle the default operating systems that come with various machines. # The value should be what the vendor currently ships out the door with their # machine or put another way, the most popular os provided with the machine. # Note that if you're going to try to match "-MANUFACTURER" here (say, # "-sun"), then you have to tell the case statement up towards the top # that MANUFACTURER isn't an operating system. Otherwise, code above # will signal an error saying that MANUFACTURER isn't an operating # system, and we'll never get to this point. case $basic_machine in score-*) os=-elf ;; spu-*) os=-elf ;; *-acorn) os=-riscix1.2 ;; arm*-rebel) os=-linux ;; arm*-semi) os=-aout ;; c4x-* | tic4x-*) os=-coff ;; c8051-*) os=-elf ;; hexagon-*) os=-elf ;; tic54x-*) os=-coff ;; tic55x-*) os=-coff ;; tic6x-*) os=-coff ;; # This must come before the *-dec entry. pdp10-*) os=-tops20 ;; pdp11-*) os=-none ;; *-dec | vax-*) os=-ultrix4.2 ;; m68*-apollo) os=-domain ;; i386-sun) os=-sunos4.0.2 ;; m68000-sun) os=-sunos3 ;; m68*-cisco) os=-aout ;; mep-*) os=-elf ;; mips*-cisco) os=-elf ;; mips*-*) os=-elf ;; or1k-*) os=-elf ;; or32-*) os=-coff ;; *-tti) # must be before sparc entry or we get the wrong os. os=-sysv3 ;; sparc-* | *-sun) os=-sunos4.1.1 ;; *-be) os=-beos ;; *-haiku) os=-haiku ;; *-ibm) os=-aix ;; *-knuth) os=-mmixware ;; *-wec) os=-proelf ;; *-winbond) os=-proelf ;; *-oki) os=-proelf ;; *-hp) os=-hpux ;; *-hitachi) os=-hiux ;; i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) os=-sysv ;; *-cbm) os=-amigaos ;; *-dg) os=-dgux ;; *-dolphin) os=-sysv3 ;; m68k-ccur) os=-rtu ;; m88k-omron*) os=-luna ;; *-next ) os=-nextstep ;; *-sequent) os=-ptx ;; *-crds) os=-unos ;; *-ns) os=-genix ;; i370-*) os=-mvs ;; *-next) os=-nextstep3 ;; *-gould) os=-sysv ;; *-highlevel) os=-bsd ;; *-encore) os=-bsd ;; *-sgi) os=-irix ;; *-siemens) os=-sysv4 ;; *-masscomp) os=-rtu ;; f30[01]-fujitsu | f700-fujitsu) os=-uxpv ;; *-rom68k) os=-coff ;; *-*bug) os=-coff ;; *-apple) os=-macos ;; *-atari*) os=-mint ;; *) os=-none ;; esac fi # Here we handle the case where we know the os, and the CPU type, but not the # manufacturer. We pick the logical manufacturer. vendor=unknown case $basic_machine in *-unknown) case $os in -riscix*) vendor=acorn ;; -sunos*) vendor=sun ;; -cnk*|-aix*) vendor=ibm ;; -beos*) vendor=be ;; -hpux*) vendor=hp ;; -mpeix*) vendor=hp ;; -hiux*) vendor=hitachi ;; -unos*) vendor=crds ;; -dgux*) vendor=dg ;; -luna*) vendor=omron ;; -genix*) vendor=ns ;; -mvs* | -opened*) vendor=ibm ;; -os400*) vendor=ibm ;; -ptx*) vendor=sequent ;; -tpf*) vendor=ibm ;; -vxsim* | -vxworks* | -windiss*) vendor=wrs ;; -aux*) vendor=apple ;; -hms*) vendor=hitachi ;; -mpw* | -macos*) vendor=apple ;; -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) vendor=atari ;; -vos*) vendor=stratus ;; esac basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"` ;; esac echo $basic_machine$os exit # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: pen-0.20.2/penlogd.c0000644000175000017500000002022512245132516011074 00000000000000/* Copyright (C) 2002-2013 Ulric Eriksson 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; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define PEN_MAX 1000 /* make that at least 1000 for prod */ /* This structure is statically allocated, which is wasteful but saves us from frequest memory allocation. */ static struct penlog { struct in_addr addr; char client[100]; char request[100]; } *penlog; static int pen_n = 0; /* next slot in buffer */ static int debuglevel = 0; static int foreground = 0; static int unbuffer = 0; static char *logfile = NULL; static FILE *logfp; static char *pidfile = NULL; static int loopflag = 1; static int do_restart_log = 0; static int pen_max = PEN_MAX; static char *user = NULL, *jail = NULL; static struct sigaction hupaction, termaction; static void debug(char *fmt, ...) { time_t now; struct tm *nowtm; char nowstr[80]; char b[4096]; va_list ap; va_start(ap, fmt); vsnprintf(b, sizeof b, fmt, ap); now=time(NULL); nowtm = localtime(&now); strftime(nowstr, sizeof(nowstr), "%Y-%m-%d %H:%M:%S", nowtm); if (foreground) { fprintf(stderr, "%s: %s\n", nowstr, b); } else { openlog("penlogd", LOG_CONS, LOG_USER); syslog(LOG_DEBUG, "%s\n", b); closelog(); } va_end(ap); } static void error(char *fmt, ...) { char b[4096]; va_list ap; va_start(ap, fmt); vsnprintf(b, sizeof b, fmt, ap); if (foreground) { fprintf(stderr, "%s\n", b); } else { openlog("penlogd", LOG_CONS, LOG_USER); syslog(LOG_ERR, "%s\n", b); closelog(); } va_end(ap); exit(1); } static void restart_log(int dummy) { do_restart_log = 1; sigaction(SIGHUP, &hupaction, NULL); } static void quit(int dummy) { loopflag = 0; } static void store_web(char *b, int n, struct in_addr addr) { char request[1024]; char *p, *q; int i, m; b[n] = '\0'; if (debuglevel > 1) debug("store_web(%s, %d)", b, n); p = strchr(b, '"'); if (p == NULL) { debug("bogus web line %s", b); return; } p++; q = strchr(p, '"'); if (q == NULL) { debug("bogus line %s", b); return; } memcpy(request, p, q-p); request[q-p] = '\0'; if (q-p < 100) m = q-p; else m = 100; i = pen_n-1; if (i < 0) i = pen_max-1; while (i != pen_n) { if (penlog[i].request[0] && addr.s_addr == penlog[i].addr.s_addr && !strncmp(request, penlog[i].request, m)) { break; } i--; if (i < 0) i = pen_max-1; } if (i == pen_n) { /* no match */ fwrite(b, 1, n, logfp); } else { fputs(penlog[i].client, logfp); p = strchr(b, ' '); if (p == NULL) { if (debuglevel) debug("Ugly"); return; } fwrite(p, 1, n-(p-b), logfp); } } static void store_pen(char *b, int n) { char client[100], server[100], request[100]; #ifdef HAVE_INET_ATON struct in_addr addr; #else struct hostent *hp; #endif b[n] = '\0'; if (sscanf(b, "+ %99[^ ] %99[^ ] %99[^\n]", client, server, request) != 3) { debug("discarding bogus pen line %s", b); return; } if (debuglevel > 1) debug("store_pen(%i: %s, %s, %s)",pen_n, client, server, request); #ifdef HAVE_INET_ATON if (inet_aton(server, &addr) == 0) { debug("bogus address %s", server); return; } penlog[pen_n].addr = addr; #else hp = gethostbyname(server); memcpy(&penlog[pen_n].addr, hp->h_addr, hp->h_length); #endif strncpy(penlog[pen_n].client, client, 100); strncpy(penlog[pen_n].request, request, 100); pen_n++; if (pen_n >= pen_max) pen_n = 0; } static void usage(void) { printf("Usage:\n" " penlogd [options] port\n" "\n" " -d debugging on\n" " -f stay in foreground\n" " -j dir run in chroot\n" " -l file write log to file\n" " -b unbuffer output (Testing Only!)\n" " -n N number of pen log entries to cache [1000]\n" " -p file write pid to file\n" " -u user run as alternative user\n"); exit(0); } static void background(void) { #ifdef HAVE_DAEMON daemon(0, 0); #else int childpid; if ((childpid = fork()) < 0) { error("Can't fork"); } else { if (childpid > 0) exit(0); /* parent */ } setsid(); signal(SIGCHLD, SIG_IGN); #endif } static int options(int argc, char **argv) { int c; while ((c = getopt(argc, argv, "j:l:n:p:u:dfb")) != -1) { switch (c) { case 'd': debuglevel++; break; case 'b': unbuffer = 1; break; case 'f': foreground = 1; break; case 'j': jail = optarg; break; case 'l': logfile = optarg; break; case 'n': pen_max = atoi(optarg); break; case 'p': pidfile = optarg; break; case 'u': user = optarg; break; default: usage(); } } return optind; } int main(int argc, char **argv) { struct passwd *pwd = NULL; struct sockaddr_in a; int ld, len, p; char b[1024]; int n = options(argc, argv); argc -= n; argv += n; if (argc < 1 || (p = atoi(argv[0])) == 0) { usage(); exit(0); } penlog = malloc(pen_max * sizeof *penlog); if (!penlog) error("Can't allocate penlog"); if (!foreground) background(); if (user) { if (debuglevel) debug("Run as user %s", user); pwd = getpwnam(user); if (pwd == NULL) error("Can't getpwnam(%s)", user); } if (jail) { if (debuglevel) debug("Run in %s", jail); if (chroot(jail) == -1) error("Can't chroot(%s)", jail); } if (pwd) { if (setuid(pwd->pw_uid) == -1) error("Can't setuid(%d)", (int)pwd->pw_uid); } if (logfile) { if (debuglevel) debug("Logging to %s", logfile); logfp = fopen(logfile, "a"); if (!logfp) error("Can't open logfile %s", logfile); if (unbuffer) setvbuf(logfp, (char *)NULL, _IOLBF, 0); } else { if (debuglevel) debug("Logging to stdout"); logfp = stdout; } if (pidfile) { FILE *pidfp = fopen(pidfile, "w"); if (debuglevel) { debug("Writing pid %d to %s", (int)getpid(), pidfile); } if (!pidfp) error("Can't create pidfile %s", pidfile); fprintf(pidfp, "%d", (int)getpid()); fclose(pidfp); } if ((ld = socket(PF_INET, SOCK_DGRAM, 0)) < 0) { error("Problem creating socket"); } a.sin_family = AF_INET; a.sin_addr.s_addr = htonl(INADDR_ANY); a.sin_port = htons(p); if (bind(ld, (struct sockaddr *) &a, sizeof(a)) < 0) { error("Problem binding"); } len = sizeof a; if (getsockname(ld, (struct sockaddr *) &a, &len) < 0) { error("Error getsockname"); } hupaction.sa_handler = restart_log; sigemptyset(&hupaction.sa_mask); hupaction.sa_flags = 0; sigaction(SIGHUP, &hupaction, NULL); termaction.sa_handler = quit; sigemptyset(&termaction.sa_mask); termaction.sa_flags = 0; sigaction(SIGTERM, &termaction, NULL); loopflag = 1; if (debuglevel) debug("Enter main loop\n"); while (loopflag) { if (do_restart_log) { if (debuglevel) debug("Reopen log file %s", logfile); if (logfp != stdout) { fclose(logfp); logfp = fopen(logfile, "a"); if (!logfp) error("Can't open %s", logfile); if (unbuffer) setvbuf(logfp, (char *)NULL, _IOLBF, 0); } do_restart_log = 0; } n = recvfrom(ld, b, sizeof b, 0, (struct sockaddr *) &a, &len); if (n < 0) { if (errno != EINTR) perror("Error receiving data"); continue; } b[n] = 0; #if 0 /* what on earth would send us something like that? */ if (strstr(b, "Host:")) { continue; /* do nothing */ #endif if (b[0] == '+') { store_pen(b, n); } else { store_web(b, n, a.sin_addr); } } if (debuglevel) debug("Exit main loop"); if (logfp) fclose(logfp); if (pidfile) unlink(pidfile); return 0; } pen-0.20.2/mergelogs.c0000644000175000017500000002223510332213025011421 00000000000000/* mergelogs.c Copyright (C) 2001-2002 Ulric Eriksson 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; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include #define KEEP_MAX 100 /* how much to keep from the URI */ typedef struct { char *a; /* server name */ char *fn; /* log file name */ FILE *fp; /* file pointer, or NULL if eof */ time_t t; /* time stamp from last line */ char cli[1024]; /* client address */ char tim[1024]; /* time string */ char uri[1024]; /* uri */ char b1[1024], b2[1024], b3[1024]; /* misc text */ } server; static server *servers; static int nservers; static int debuglevel = 0; static char *pfile; static int jitter = 600; /* 10 minutes */ static FILE *pfp; static int tz = 0; static int cache_penlog = 1; static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; static void debug(char *fmt, ...) { va_list ap; va_start(ap, fmt); vfprintf(stderr, fmt, ap); va_end(ap); fprintf(stderr, "\n"); } static void error(char *fmt, ...) { va_list ap; va_start(ap, fmt); vfprintf(stderr, fmt, ap); va_end(ap); fprintf(stderr, "\n"); exit(1); } static void *pen_malloc(size_t n) { char *q = malloc(n); if (!q) error("Can't allocate %ld bytes", (long)n); return q; } static void *pen_calloc(size_t n, size_t s) { char *q = calloc(n, s); if (!q) error("Can't allocate %ld bytes", (long)n*s); return q; } static void *pen_realloc(void *p, size_t n) { char *q = realloc(p, n); if (!q) error("Can't allocate %ld bytes", (long)n); return q; } static char *pen_strdup(char *p) { char *q = pen_malloc(strlen(p)+1); return strcpy(q, p); } static void usage(void) { printf("Usage: mergelogs -p penlog [-j jitter] \\\n" " server1:logfile1 [server2:logfile2 ...]\n\n" " -c Do not use penlog cache\n" " -d Debugging (repeat for more)\n" " -p penlog Log file from pen\n" " -j jitter Jitter in seconds [2]\n" " -r filename Where to put rejects\n" " -t seconds Timezone\n" " server:logfile Web server address and name of logfile\n"); exit(0); } static int options(int argc, char **argv) { int c; while ((c = getopt(argc, argv, "p:a:j:t:cd")) != -1) { switch (c) { case 'p': pfile = optarg; break; case 'j': jitter = atoi(optarg); break; case 't': tz = atoi(optarg); break; case 'c': cache_penlog = 0; break; case 'd': debuglevel++; break; default: usage(); } } return optind; } static int mon2num(char *p) { int i; for (i = 0; i < 12; i++) if (!strcmp(p, months[i])) return i; return -1; } static char *num2mon(int m) { if (m < 0 || m > 11) return "no such month"; return months[m]; } static void thenp(char *b, time_t t) { struct tm *tms = localtime(&t); sprintf(b, "%02d/%s/%04d:%02d:%02d:%02d +0000", tms->tm_mday, num2mon(tms->tm_mon), tms->tm_year+1900, tms->tm_hour, tms->tm_min, tms->tm_sec); } /* Time format: 09/Jan/2002:00:27:15 +0100 */ static time_t whenp(char *p, struct tm *tms) { char dd[100], mm[100], yy[100]; char hh[100], mi[100], ss[100], tz[100]; time_t t; tz[0] = '\0'; sscanf(p, "%[^/]/%[^/]/%[^:]:%[^:]:%[^:]:%s %s", dd, mm, yy, hh, mi, ss, tz); tms->tm_sec = atoi(ss); tms->tm_min = atoi(mi); tms->tm_hour = atoi(hh); tms->tm_mday = atoi(dd); tms->tm_mon = mon2num(mm); tms->tm_year = atoi(yy)-1900; t = mktime(tms); if (t != -1 && strlen(tz) == 5) { int d = 60*atoi(tz+3); tz[3] = '\0'; d += 3600*atoi(tz+1); if (tz[0] == '+') t -= d; else t += d; } return t; } static void read_server_line(int s) { char b[1024]; struct tm tms; int n; do { if (fgets(b, sizeof b, servers[s].fp) == NULL) { fclose(servers[s].fp); servers[s].fp = NULL; return; } n = sscanf(b, "%[^ ] %[^[][%[^]]]%[^\"]\"%[^\"]\"%[^\n]", servers[s].cli, servers[s].b1, servers[s].tim, servers[s].b2, servers[s].uri, servers[s].b3); if (n == 6) { servers[s].t = whenp(servers[s].tim, &tms); } else if (debuglevel) { debug("Read %d fields", n); } } while (n != 6); } static int oldest_server(void) { int i, n = -1; time_t t = -1; for (i = 0; i < nservers; i++) { if (servers[i].fp) { if (t == -1 || servers[i].t < t) { n = i; t = servers[i].t; } } } return n; } typedef struct { char *cli; /* client address */ int ser; /* server index (in servers array) */ time_t t; /* time stamp */ char *uri; /* uri */ } pencache; static pencache *pc; static int npc; static int server2num(char *s) { int i; for (i = 0; i < nservers; i++) { if (!strcmp(servers[i].a, s)) return i; } return -1; } /* cache relevant penlog lines to speed up the search */ static void best_client1(char *p, char *s, long t, char *u) { char b[1024], from[1024], to[1024], uri[1024]; long when, td, ntd; int i, j; int ser = server2num(s); /* first remove all entries that are older than (t-jitter) */ for (i = 0; i < npc; i++) { if (pc[i].t >= (t-jitter)) break; } if (i) { if (debuglevel) debug("uncache %d lines\n", i); for (j = 0; j < i; j++) { if (debuglevel >= 2) { debug("uncache '%s %ld %d %s'", pc[j].cli, pc[j].t, pc[j].ser, pc[j].uri); } free(pc[j].cli); free(pc[j].uri); } while (j < npc) { pc[j-i] = pc[j]; j++; } npc -= i; } /* then add entries until eof or newer than (t+jitter) */ for (;;) { if (npc > 0 && pc[npc-1].t > (t+jitter)) break; if (feof(pfp)) break; if (fgets(b, sizeof b, pfp) == NULL) break; pc = pen_realloc(pc, (npc+1)*sizeof *pc); if (debuglevel) debug("pc = %p, b = '%s'", pc, b); if (sscanf(b, "%s %ld %s %[^\n]", from, &when, to, uri) != 4) { continue; } pc[npc].cli = pen_strdup(from); pc[npc].ser = server2num(to); pc[npc].t = when-tz; pc[npc].uri = pen_strdup(uri); if (debuglevel >= 2) { debug("cache '%s %ld %d %s'", pc[npc].cli, pc[npc].t, pc[npc].ser, pc[npc].uri); } npc++; } /* now search the cache for a best match */ strcpy(p, s); /* default is client = server */ td = LONG_MAX; for (i = 0; i < npc; i++) { if (ser != pc[i].ser) continue; if (strcmp(u, pc[i].uri)) continue; ntd = labs(t-pc[i].t); if (ntd < td) { td = ntd; strcpy(p, pc[i].cli); } } } /* same again, this time without the cache */ static void best_client0(char *p, char *s, long t, char *u) { char b[1024], from[1024], to[1024], uri[1024]; long when, td, ntd; rewind(pfp); strcpy(p, s); /* default is client = server */ td = LONG_MAX; while (fgets(b, sizeof b, pfp)) { if (sscanf(b, "%s %ld %s %[^\n]", from, &when, to, uri) != 4) { continue; } if (strcmp(s, to)) continue; if (strcmp(u, uri)) continue; when -= tz; ntd = labs(t-when); if (ntd < td) { td = ntd; strcpy(p, from); } } if (debuglevel && td > 600) { debug("Warning: time difference %ld", td); } } static void best_client(char *p, char *s, long t, char *u) { if (cache_penlog) best_client1(p, s, t, u); else best_client0(p, s, t, u); } int main(int argc, char **argv) { int i, n, s; n = options(argc, argv); argc -= n; argv += n; if (argc < 1) { usage(); } if (pfile == NULL) error("pfile null"); pfp = fopen(pfile, "r"); if (pfp == NULL) error("pfp null"); s = 0; servers = pen_calloc(argc, sizeof *servers); for (i = 0; i < argc; i++) { servers[s].a = pen_strdup(argv[i]); servers[s].fn = strchr(servers[s].a, ':'); if (servers[s].fn == NULL) error("Bogus server '%s'\n", argv[i]); *servers[s].fn++ = '\0'; servers[s].fp = fopen(servers[s].fn, "r"); if (servers[s].fp == NULL) error("Can't open logfile '%s'\n", servers[s].fn); read_server_line(s); nservers++; s++; } /* Example log lines: 10.0.18.6 - - [09/Jan/2002:00:28:50 +0100] "GET /robots.txt HTTP/1.0" 404 268 10.0.18.6 - - [09/Jan/2002:00:28:50 +0100] "GET /news.html HTTP/1.0" 200 4017 That is: client, whatever, whatever, [timestamp], "URI", code, size. */ while ((s = oldest_server()) != -1) { char cli[1024], tim[1024]; thenp(tim, servers[s].t); best_client(cli, servers[s].a, servers[s].t, servers[s].uri); if (debuglevel >= 2) { debug("\tclient = '%s' => '%s'", servers[s].cli, cli); debug("\ttime = '%s' => %d => '%s'", servers[s].cli, cli, servers[s].tim, (int)servers[s].t, tim); debug("\turi = '%s'", servers[s].uri); } printf("%s %s[%s]%s\"%s\"%s\n", cli, servers[s].b1, tim, servers[s].b2, servers[s].uri, servers[s].b3); read_server_line(s); } fclose(pfp); return 0; } pen-0.20.2/penlogd.10000644000175000017500000000311710332213025011001 00000000000000.TH PENLOGD 1 LOCAL .SH NAME penlogd .SH SYNOPSIS .B penlogd [-fd] [-j dir] [-l logfile] [-n N] [-p pidfile] [-u user] port .SH EXAMPLE penlogd -l /var/log/access_log -p /var/run/penlogd.pid 10000 .SH DESCRIPTION .I Penlogd receives log entries from Pen and from each of the web servers. It consolidates the entries by replacing the source addresses in each entry with the "real" client address and writes the result to stdout or to the file given on the command line. This completely removes the need for postprocessing with mergelogs, since the logs are already merged. Pen must be instructed to send its log to penlogd. See HOWTO and pen man page for details. Sending penlogd a HUP signal will make it close and reopen the logfile, unless it is logging to stdout. Rotate the log like this: mv access_log access_log.1 kill -HUP `cat ` where is the file containing pen's process id. Sending penlogd a TERM signal will make it close the log file and exit cleanly. .SH OPTIONS .TP -d Turn on debugging. The output goes to stderr if we are running in the foreground (see -f) and to syslog (facility user, priority debug) otherwise. .TP -f Stay in foreground. .TP -j \fIdir\fR Run in a chroot environment. .TP -l \fIlogfile\fR Write output into logfile. .TP -n \fIN\fR Number of pen log entries to cache (default 1000). .TP -p \fIpidfile\fR Write process id into pidfile. .TP -u \fIuser\fR Run as a different user. .TP port The UDP port where penlogd receives log entries. .SH SEE ALSO pen(1), penlog(1), webresolve(1) .SH AUTHOR Copyright (C) 2002-2003 Ulric Eriksson, . pen-0.20.2/pen.c0000644000175000017500000021521612267454252010244 00000000000000/* Copyright (C) 2000-2013 Ulric Eriksson 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; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef TIME_WITH_SYS_TIME #include #endif #include #include #include #include #ifdef HAVE_POLL #include #endif /* HAVE_POLL */ #ifdef HAVE_KQUEUE #include #endif #include #include #include #include #include #ifdef HAVE_SSL #include #include #define SRV_SSL_V23 0 #define SRV_SSL_V2 1 #define SRV_SSL_V3 2 #define SRV_SSL_TLS1 3 static char ssl_compat; static char require_peer_cert; static char ssl_protocol; static char *certfile; static char *keyfile; static char *cacert_dir; static char *cacert_file; static SSL_CTX *ssl_context = NULL; #endif /* HAVE_SSL */ #define BUFFER_MAX (32*1024) #define CLIENTS_MAX 2048 /* max clients */ #define SERVERS_MAX 16 /* max servers */ #define ACLS_MAX 10 /* max acls */ #define CONNECTIONS_MAX 256 /* max simultaneous connections */ #define TIMEOUT 5 /* default timeout for non reachable hosts */ #define BLACKLIST_TIME 30 /* how long to shun a server that is down */ #define TRACKING_TIME 0 /* how long a client is remembered */ #define KEEP_MAX 100 /* how much to keep from the URI */ #define WEIGHT_FACTOR 256 /* to make weight kick in earlier */ typedef struct { int downfd, upfd; unsigned char *downb, *downbptr, *upb, *upbptr; int downn, upn; int clt; struct sockaddr_in *addr_backend, *addr_listener, *addr_client; /* for UDP only */ int index; /* server index */ #ifdef HAVE_KQUEUE int i; /* connection index */ #endif #ifdef HAVE_SSL SSL *ssl; #endif } connection; typedef struct { int status; /* last failed connection attempt */ int acl; /* which clients can use this server */ int port; struct in_addr addr; int c; /* connections */ int weight; /* default 1 */ int prio; int maxc; /* max connections, soft limit */ int hard; /* max connections, hard limit */ unsigned long long sx, rx; /* bytes sent, received */ } server; typedef struct { time_t last; /* last time this client made a connection */ struct in_addr addr; /* of client */ int cno; /* server used last time */ long connects; long long csx, crx; } client; typedef struct { unsigned int ip, mask; int permit; } acl; static int nservers; /* number of servers */ static int current; /* current server */ static int nacls[ACLS_MAX]; static client *clients; static server *servers; static acl *acls[ACLS_MAX]; static int emerg_server = -1; /* server of last resort */ static int emergency = 0; /* are we using the emergency server? */ static int abuse_server = -1; /* server for naughty clients */ static connection *conns; static int debuglevel; static int asciidump; static int foreground; static int loopflag; static int exit_enabled = 0; static int clients_max = CLIENTS_MAX; static int servers_max = SERVERS_MAX; static int connections_max = CONNECTIONS_MAX; static int connections_used = 0; static int connections_last = 0; static int timeout = TIMEOUT; static int blacklist_time = BLACKLIST_TIME; static int tracking_time = TRACKING_TIME; static int roundrobin = 0; static int weight = 0; static int prio = 0; static int hash = 0; static int stubborn = 0; static int nblock = 1; static int delayed_forward = 0; static int do_stats = 0; static int do_restart_log = 0; static int use_poll = 0; static int use_kqueue = 0; static int http = 0; static int client_acl, control_acl; static int udp = 0; static int udpused = 0; static int protoid = SOCK_STREAM; //static int connection_ctrl = 0; static int port; static char *cfgfile = NULL; static char *logfile = NULL; static FILE *logfp = NULL; static struct sockaddr_in logserver; static int logsock = -1; static char *pidfile = NULL; static FILE *pidfp = NULL; static char *webfile = NULL; static char *listenport = NULL; static char *ctrlport = NULL; static int listenfd, ctrlfd; static char *e_server = NULL; static char *a_server = NULL; static char *jail = NULL; static char *user = NULL; static char *proto = "tcp"; static struct sigaction alrmaction, hupaction, termaction, usr1action; static void close_conn(int); static void no_response(void); static void debug(char *fmt, ...) { time_t now; struct tm *nowtm; char nowstr[80]; char b[4096]; va_list ap; va_start(ap, fmt); vsnprintf(b, sizeof b, fmt, ap); now=time(NULL); nowtm = localtime(&now); strftime(nowstr, sizeof(nowstr), "%Y-%m-%d %H:%M:%S", nowtm); if (foreground) { fprintf(stderr, "%s: %s\n", nowstr, b); } else { openlog("pen", LOG_CONS, LOG_USER); syslog(LOG_DEBUG, "%s\n", b); closelog(); } va_end(ap); } static void error(char *fmt, ...) { char b[4096]; va_list ap; va_start(ap, fmt); vsnprintf(b, sizeof b, fmt, ap); if (foreground) { fprintf(stderr, "%s\n", b); } else { openlog("pen", LOG_CONS, LOG_USER); syslog(LOG_ERR, "%s\n", b); closelog(); } va_end(ap); exit(1); } static void *pen_malloc(size_t n) { void *q = malloc(n); if (!q) error("Can't malloc %ld bytes", (long)n); return q; } static void *pen_calloc(size_t n, size_t s) { void *q = calloc(n, s); if (!q) error("Can't calloc %ld bytes", (long)n*s); return q; } static void *pen_realloc(void *p, size_t n) { void *q = realloc(p, n); if (!q) error("Can't realloc %ld bytes", (long)n); return q; } static char *pen_strdup(char *p) { size_t len = strlen(p); char *b = pen_malloc(len+1); memcpy(b, p, len); b[len] = '\0'; return b; } static int pen_strncasecmp(const char *p, const char *q, size_t n) { size_t i = 0; int c = 0; while ((i < n) && !(c = toupper(*p)-toupper(*q)) && *p) { p++; q++; i++; } return c; } static char *pen_strcasestr(const char *haystack, const char *needle) { char *p = (char *)haystack; int n = strlen(needle); while (*p) { if (!pen_strncasecmp(p, needle, n)) return p; p++; } return NULL; } #ifdef HAVE_SSL static int ssl_verify_cb(int ok, X509_STORE_CTX *ctx) { char buffer[256]; X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buffer, sizeof(buffer)); if (ok) { debug("SSL: Certificate OK: %s", buffer); } else { switch (ctx->error) { case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: debug("SSL: Cert error: CA not known: %s", buffer); break; case X509_V_ERR_CERT_NOT_YET_VALID: debug("SSL: Cert error: Cert not yet valid: %s", buffer); break; case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: debug("SSL: Cert error: illegal \'not before\' field: %s", buffer); break; case X509_V_ERR_CERT_HAS_EXPIRED: debug("SSL: Cert error: Cert expired: %s", buffer); break; case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: debug("SSL: Cert error: invalid \'not after\' field: %s", buffer); break; default: debug("SSL: Cert error: unknown error %d in %s", ctx->error, buffer); break; } } return ok; } static RSA *ssl_temp_rsa_cb(SSL *ssl, int export, int keylength) { static RSA *rsa = NULL; if (rsa == NULL) rsa = RSA_generate_key(512, RSA_F4, NULL, NULL); return rsa; } static int ssl_init(void) { int err; SSL_load_error_strings(); SSLeay_add_ssl_algorithms(); switch (ssl_protocol) { #if 0 case SRV_SSL_V2: ssl_context = SSL_CTX_new(SSLv2_method()); break; #endif case SRV_SSL_V3: ssl_context = SSL_CTX_new(SSLv3_method()); break; default: case SRV_SSL_V23: ssl_context = SSL_CTX_new(SSLv23_method()); break; case SRV_SSL_TLS1: ssl_context = SSL_CTX_new(TLSv1_method()); break; } if (ssl_context == NULL) { err = ERR_get_error(); error("SSL: Error allocating context: %s", ERR_error_string(err, NULL)); } if (ssl_compat) { SSL_CTX_set_options(ssl_context, SSL_OP_ALL); } if (certfile == NULL || *certfile == 0) { debug("SSL: No cert file specified in config file!"); error("The server MUST have a certificate!"); } if (keyfile == NULL || *keyfile == 0) keyfile = certfile; if (certfile != NULL && *certfile != 0) { if (!SSL_CTX_use_certificate_file(ssl_context, certfile, SSL_FILETYPE_PEM)) { err = ERR_get_error(); error("SSL: error reading certificate from file %s: %s", certfile, ERR_error_string(err, NULL)); } if (!SSL_CTX_use_PrivateKey_file(ssl_context, keyfile, SSL_FILETYPE_PEM)) { err = ERR_get_error(); error("SSL: error reading private key from file %s: %s", keyfile, ERR_error_string(err, NULL)); } if (!SSL_CTX_check_private_key(ssl_context)) { error("SSL: Private key does not match public key in cert!"); } } if (cacert_dir != NULL && *cacert_dir == 0) cacert_dir = NULL; if (cacert_file != NULL && *cacert_file == 0) cacert_file = NULL; if (cacert_dir != NULL || cacert_file != NULL) { if (!SSL_CTX_load_verify_locations(ssl_context, cacert_file, cacert_dir)) { err = ERR_get_error(); debug("SSL: Error error setting CA cert locations: %s", ERR_error_string(err, NULL)); cacert_file = cacert_dir = NULL; } } if (cacert_dir == NULL && cacert_file == NULL) { /* no verify locations loaded */ debug("SSL: No verify locations, trying default"); if (!SSL_CTX_set_default_verify_paths(ssl_context)) { err = ERR_get_error(); debug("SSL: Error error setting default CA cert location: %s", ERR_error_string(err, NULL)); debug("continuing anyway..."); } } SSL_CTX_set_tmp_rsa_callback(ssl_context, ssl_temp_rsa_cb); if (require_peer_cert) { SSL_CTX_set_verify(ssl_context, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, ssl_verify_cb); } else { SSL_CTX_set_verify(ssl_context, SSL_VERIFY_NONE, ssl_verify_cb); } SSL_CTX_set_client_CA_list(ssl_context, SSL_load_client_CA_file(certfile)); /* permit large writes to be split up in several records */ SSL_CTX_set_mode(ssl_context, SSL_MODE_ENABLE_PARTIAL_WRITE); return 0; } #endif /* HAVE_SSL */ static void add_acl(int a, unsigned int ip, unsigned int mask, int permit) { int i; if (debuglevel) { debug("add_acl(%d, %x, %x, %d)", a, ip, mask, permit); } if (a < 0 || a >= ACLS_MAX) { debug("add_acl: %d outside (0,%d)", a, ACLS_MAX); return; } i = nacls[a]++; acls[a] = pen_realloc(acls[a], nacls[a]*sizeof(acl)); acls[a][i].ip = ip; acls[a][i].mask = mask; acls[a][i].permit = permit; } static void del_acl(int a) { if (debuglevel) { debug("del_acl(%d)", a); } if (a < 0 || a >= ACLS_MAX) { debug("del_acl: %d outside (0,%d)", a, ACLS_MAX); return; } free(acls[a]); acls[a] = NULL; nacls[a] = 0; } static int match_acl(int a, unsigned int client) { int i; int permit = 0; acl *ap = acls[a]; if (debuglevel) { debug("match_acl(%d, %u)", a, client); } for (i = 0; i < nacls[a]; i++) { if ((client & ap[i].mask) == ap[i].ip) { return ap[i].permit; } else { permit = ap[i].permit; } } return !permit; } static void webstats(void) { FILE *fp; int i; time_t now; struct tm *nowtm; char nowstr[80]; fp = fopen(webfile, "w"); if (fp == NULL) return; now=time(NULL); nowtm = localtime(&now); strftime(nowstr, sizeof(nowstr), "%Y-%m-%d %H:%M:%S", nowtm); fprintf(fp, "\n" "\n" "Pen status page\n" "\n" "" "

Pen status page

\n"); fprintf(fp, "Time %s, %d servers, %d current

\n", nowstr, nservers, current); fprintf(fp, "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n"); for (i = 0; i < nservers; i++) { fprintf(fp, "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n", i, inet_ntoa(servers[i].addr), servers[i].status, servers[i].port, servers[i].c, servers[i].maxc, servers[i].hard, servers[i].sx, servers[i].rx, servers[i].weight, servers[i].prio); } fprintf(fp, "
serveraddressstatusportconnectionsmax softmax hardsentreceivedweightprio
%d%s%d%d%d%d%d%llu%llu%d%d
\n"); fprintf(fp, "

Active clients

"); fprintf(fp, "Max number of clients: %d

", clients_max); fprintf(fp, "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n"); for (i = 0; i < clients_max; i++) { if (clients[i].last == 0) continue; fprintf(fp, "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n", i, inet_ntoa(clients[i].addr), (long)(now-clients[i].last), clients[i].cno, clients[i].connects, clients[i].csx, clients[i].crx); } fprintf(fp, "
clientaddressage(secs)last serverconnectssentreceived
%d%s%ld%d%ld%lld%lld
\n"); fprintf(fp, "

Active connections

"); fprintf(fp, "Number of connections: %d max, %d used, %d last

", connections_max, connections_used, connections_last); fprintf(fp, "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n"); for (i = 0; i < connections_max; i++) { if (conns[i].downfd == -1) continue; fprintf(fp, "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n" "\n", i, conns[i].downfd, conns[i].upfd, conns[i].downn, conns[i].upn, conns[i].clt, conns[i].index); } fprintf(fp, "
connectiondownfdupfdpending data downpending data upclientserver
%d%d%d%d%d%d%d
\n"); fprintf(fp, "\n" "\n"); fclose(fp); } static void textstats(void) { int i; time_t now; struct tm *nowtm; char nowstr[80]; now=time(NULL); nowtm = localtime(&now); strftime(nowstr, sizeof(nowstr), "%Y-%m-%d %H:%M:%S", nowtm); debug("Time %s, %d servers, %d current", nowstr, nservers, current); for (i = 0; i < nservers; i++) { debug("Server %d status:\n" "address %s\n" "%d\n" "port %d\n" "%d connections (%d soft, %d hard)\n" "%llu sent, %llu received\n", i, inet_ntoa(servers[i].addr), servers[i].status, servers[i].port, servers[i].c, servers[i].maxc, servers[i].hard, servers[i].sx, servers[i].rx); } debug("Max number of clients: %d", clients_max); debug("Active clients:"); for (i = 0; i < clients_max; i++) { if (clients[i].last == 0) continue; debug("Client %d status:\n" "address %s\n" "last used %ld\n" "last server %d\n", "connects %ld\n", "sent %llu\n", "received %llu\n", i, inet_ntoa(clients[i].addr), (long)(now-clients[i].last), clients[i].cno, clients[i].connects, clients[i].csx, clients[i].crx); } debug("Max number of connections: %d", connections_max); debug("Active connections:"); for (i = 0; i < connections_max; i++) { if (conns[i].downfd == -1) continue; debug("Connection %d status:\n" "downfd = %d, upfd = %d\n" "pending data %d down, %d up\n" "client %d, server %d\n", i, conns[i].downfd, conns[i].upfd, conns[i].downn, conns[i].upn, conns[i].clt, conns[i].index); } } static void stats(int dummy) { do_stats=1; sigaction(SIGUSR1, &usr1action, NULL); } static void restart_log(int dummy) { do_restart_log=1; sigaction(SIGHUP, &hupaction, NULL); } static void quit(int dummy) { loopflag = 0; } /* Return index of known client, otherwise -1 */ static int lookup_client(struct in_addr cli) { int i; unsigned long ad = cli.s_addr; time_t now = time(NULL); for (i = 0; i < clients_max; i++) { if (clients[i].addr.s_addr == ad) break; } if (i == clients_max) i = -1; else if (tracking_time > 0 && clients[i].last+tracking_time < now) { /* too old, recycle */ clients[i].last = 0; i = -1; } if (debuglevel) debug("Client %s has index %d", inet_ntoa(cli), i); return i; } /* Store client and return index */ static int store_client(int clino, struct in_addr cli, int ch) { int i; int empty = -1; /* first empty slot */ int oldest = -1; /* in case we need to recycle */ if (clino == -1) { for (i = 0; i < clients_max; i++) { if (clients[i].addr.s_addr == cli.s_addr) break; /* XXX */ if (empty != -1) continue; if (clients[i].last == 0) { empty = i; continue; } if (oldest == -1 || (clients[i].last < clients[oldest].last)) { oldest = i; } } if (i == clients_max) { if (empty != -1) i = empty; else i = oldest; } clients[i].connects = 0; clients[i].csx = 0; clients[i].crx = 0; } else i = clino; clients[i].last = time(NULL); clients[i].addr = cli; clients[i].cno = ch; clients[i].connects++; if (debuglevel) { debug("Client %s has index %d and server %d", inet_ntoa(cli), i, ch); } servers[ch].c++; return i; } static void dump(unsigned char *p, int n) { int i; fprintf(stderr, "%d: ", n); for (i = 0; i < n; i++) { if (asciidump) { fprintf(stderr, "%c", (isprint(p[i])||isspace(p[i]))?p[i]:'.'); } else { fprintf(stderr, "%02x ", (int)p[i]); } } fprintf(stderr, "\n"); } static int getport(char *p, char *proto) { struct servent *s = getservbyname(p, proto); if (s == NULL) { return atoi(p); } else { return ntohs(s->s_port); } } static void setipaddress(struct in_addr *a, char *p) { struct hostent *h = gethostbyname(p); if (h == NULL) { if ((a->s_addr = inet_addr(p)) == -1) { error("unknown or invalid address [%s]\n", p); } } else { memcpy(a, h->h_addr, h->h_length); } } static void setaddress(struct in_addr *a, int *port, char *s, int dp, int *maxc, int *hard, int *weight, int *prio, char *proto) { struct hostent *h; char address[1024], pno[100]; int n = sscanf(s, "%999[^:]:%99[^:]:%d:%d:%d:%d", address, pno, maxc, hard, weight, prio); if (n > 1) *port = getport(pno, proto); else *port = dp; if (n < 3) *maxc = 0; if (n < 4) *hard = 0; if (n < 5) *weight = 0; if (n < 6) *prio = 0; if (debuglevel) debug("n = %d, address = %s, pno = %d, maxc1 = %d, hard = %d, weight = %d, prio = %d, proto = %s ", n, address, *port, *maxc, *hard, *weight, *prio, proto); if (!(h = gethostbyname(address))) { if ((a->s_addr = inet_addr(address)) == -1) { error("unknown or invalid address [%s]\n", address); } } else { memcpy(a, h->h_addr, h->h_length); } } /* Log format is: + client_ip server_ip request */ static void netlog(int fd, int i, unsigned char *r, int n) { int j, k; char b[1024]; if (debuglevel) debug("netlog(%d, %d, %p, %d)", fd, i, r, n); strcpy(b, "+ "); k = 2; strcpy(b+k, inet_ntoa(clients[conns[i].clt].addr)); k += strlen(b+k); b[k++] = ' '; strcpy(b+k, inet_ntoa(servers[conns[i].index].addr)); k += strlen(b+k); b[k++] = ' '; /* We have already used k bytes from b. This means that we want no more than (sizeof b-(k+1)) bytes from r. The +1 is for the trailing newline. */ j = sizeof b-(k+1); if (n > j) n = j; for (j = 0; j < n && r[j] != '\r' && r[j] != '\n'; j++) { b[k++] = r[j]; } b[k++] = '\n'; sendto(fd, b, k, 0, (struct sockaddr *)&logserver, sizeof logserver); } /* Log format is: client_ip timestamp server_ip request */ static void log_request(FILE *fp, int i, unsigned char *b, int n) { int j; if (n > KEEP_MAX) n = KEEP_MAX; fprintf(fp, "%s ", inet_ntoa(clients[conns[i].clt].addr)); fprintf(fp, "%ld ", (long)time(NULL)); fprintf(fp, "%s ", inet_ntoa(servers[conns[i].index].addr)); for (j = 0; j < n && b[j] != '\r' && b[j] != '\n'; j++) { fprintf(fp, "%c", isascii(b[j])?b[j]:'.'); } fprintf(fp, "\n"); } static int rewrite_request(int i, int n, char *b) { char *q; char p[BUFFER_MAX]; int pl; b[n] = '\0'; if (debuglevel > 1) debug("rewrite_request(%d, %d, %s)", i, n, b); if (pen_strncasecmp(b, "GET ", 4) && pen_strncasecmp(b, "POST ", 5) && pen_strncasecmp(b, "HEAD ", 5)) { return n; /* You can't touch this */ } if (debuglevel) debug("Looking for CRLFCRLF"); q = strstr(b, "\r\n\r\n"); /* Steve Hall tells me that apparently some clients send \n\n instead */ if (!q) { if (debuglevel) debug("Looking for LFLF"); q = strstr(b, "\n\n"); } if (!q) return n; /* not a header */ #if 0 /* how is that supposed to happen? */ if (q >= b+n) return n; /* outside of buffer */ #endif /* Look for existing X-Forwarded-For */ if (debuglevel) debug("Looking for X-Forwarded-For"); if (pen_strcasestr(b, "\nX-Forwarded-For:")) return n; if (debuglevel) debug("Adding X-Forwarded-For"); /* Didn't find one, add our own */ sprintf(p, "\r\nX-Forwarded-For: %s", inet_ntoa(clients[conns[i].clt].addr)); pl=strlen(p); if (n+pl > BUFFER_MAX) return n; memmove(q+pl, q, b+n-q); memmove(q, p, pl); n += pl; return n; } static int copy_up(int i) { int rc; int from = conns[i].downfd; int to = conns[i].upfd; int serverindex = conns[i].index; unsigned char b[BUFFER_MAX]; size_t size = sizeof(struct sockaddr); #ifdef HAVE_SSL SSL *ssl = conns[i].ssl; if (ssl) { rc = SSL_read(ssl, b, BUFFER_MAX); if (debuglevel) debug("SSL_read returns %d\n", rc); if (rc < 0) { int err = SSL_get_error(ssl, rc); if (debuglevel) debug("SSL_read returns %d (SSL error %d)\n", rc, err); if (err == SSL_ERROR_WANT_READ || err == SSL_ERROR_WANT_WRITE) { return 0; } } } else { rc = read(from, b, BUFFER_MAX); } #else if (!udp) rc = read(from, b, BUFFER_MAX); else { rc = recvfrom (from, b, BUFFER_MAX, 0, (struct sockaddr *) conns[i].addr_listener, &size); } #endif /* HAVE_SSL */ if (debuglevel > 1) debug("copy_up(%d) %d bytes", i, rc); if (rc <= 0) { return -1; } else { int n; if (http) { rc = rewrite_request(i, rc, b); } if (debuglevel > 2) dump(b, rc); if (logfp) { log_request(logfp, i, b, rc); if (debuglevel > 2) log_request(stderr, i, b, rc); } if (logsock != -1) { netlog(logsock, i, b, rc); } if (delayed_forward) n = 0; else { if (!udp) n = write(to, b, rc); /* no ssl here */ else { n = sendto(to, b, rc, 0, (struct sockaddr *) conns[i].addr_backend, size); } } if (n < 0) { if (!nblock || errno != EAGAIN) return -1; n = 0; } if (n != rc) { if (debuglevel > 1) { debug("copy_up saving %d bytes in up buffer", rc-n); } conns[i].upn = rc-n; conns[i].upbptr = conns[i].upb = pen_malloc(rc-n); memcpy(conns[i].upb, b+n, rc-n); } servers[serverindex].sx += rc; clients[conns[i].clt].crx += rc; } return 0; } static int copy_down(int i) { int rc; int from = conns[i].upfd; int to = conns[i].downfd; int serverindex = conns[i].index; #ifdef HAVE_SSL SSL *ssl = conns[i].ssl; #endif unsigned char b[BUFFER_MAX]; size_t size = sizeof(struct sockaddr); if (!udp) rc = read(from, b, BUFFER_MAX); /* no ssl here */ else rc = recvfrom (from, b, BUFFER_MAX, 0, (struct sockaddr *) conns[i].addr_backend, &size); if (debuglevel > 1) debug("copy_down(%d) %d bytes", i, rc); if (debuglevel > 2) dump(b, rc); if (rc <= 0) { return -1; } else { int n; if (delayed_forward) { n = 0; } else { #ifdef HAVE_SSL if (ssl) { /* can't write more than 32000 bytes at a time */ int ssl_rc; if (rc > 32000) ssl_rc = 32000; else ssl_rc = rc; n = SSL_write(ssl, b, ssl_rc); if (debuglevel) debug("SSL_write returns %d\n", n); if (n < 0) { int err = SSL_get_error(ssl, n); if (debuglevel) debug("SSL error %d\n", err); if (err == SSL_ERROR_WANT_READ || err == SSL_ERROR_WANT_WRITE) { return 0; } } } else { n = write(to, b, rc); } #else if (!udp) n = write(to, b, rc); else { n = sendto(to, b, rc, 0, (struct sockaddr *) conns[i].addr_listener, size); } #endif } if (n < 0) { if (!nblock || errno != EAGAIN) return -1; n = 0; } if (n != rc) { if (debuglevel > 1) { debug("copy_down saving %d bytes in down buffer", rc-n); } conns[i].downn = rc-n; conns[i].downbptr = conns[i].downb = pen_malloc(rc-n); memcpy(conns[i].downb, b+n, rc-n); } servers[serverindex].rx += rc; clients[conns[i].clt].csx += n; } return 0; } static void alarm_handler(int dummy) { if (debuglevel) debug("alarm_handler(%d)", dummy); if (udp) no_response(); } static void no_response(){ /* UDP packet is not responding */ int iserv = conns[0].index; if (udpused == 2){ if (servers[iserv].status == 0){ if (debuglevel > 1) debug("No response UDP Server %d failed, \ retry in %d sec", iserv, blacklist_time); servers[iserv].status = (int)time(NULL); } } udpused=3; } #ifdef HAVE_SSL static void store_conn(int downfd, SSL *ssl, int upfd, int clt, int index, struct sockaddr_in *serv_addr, struct sockaddr_in *cli_addr, struct sockaddr_in *addr_client) #else static void store_conn(int downfd, int upfd, int clt, int index, struct sockaddr_in *serv_addr, struct sockaddr_in *cli_addr, struct sockaddr_in *addr_client) #endif { int i, fl; if (nblock) { if ((fl = fcntl(downfd, F_GETFL, 0)) == -1) error("Can't fcntl, errno = %d", errno); if (fcntl(downfd, F_SETFL, fl | O_NONBLOCK) == -1) error("Can't fcntl, errno = %d", errno); if ((fl = fcntl(upfd, F_GETFL, 0)) == -1) error("Can't fcntl, errno = %d", errno); if (fcntl(upfd, F_SETFL, fl | O_NONBLOCK) == -1) error("Can't fcntl, errno = %d", errno); } i = connections_last; do { if (conns[i].upfd == -1) break; i++; if (i >= connections_max) i = 0; } while (i != connections_last); /* The next test is not necessary, because we don't call store_conn unless there are empty connection slots. Keep the test anyway for now. */ if (conns[i].upfd == -1) { connections_last = i; connections_used++; conns[i].upfd = upfd; conns[i].downfd = downfd; #ifdef HAVE_SSL conns[i].ssl = ssl; #endif conns[i].clt = clt; conns[i].index = index; if (udp){ conns[i].addr_backend = serv_addr; conns[i].addr_listener = cli_addr; conns[i].addr_client = addr_client; } #ifdef HAVE_KQUEUE /* kqueue can store a pointer to arbitrary data with each * event, but it must be a pointer. We store a pointer to * conns[i]. copy_up/down then require i again, which we * can't get without storing i within the struct itself. */ conns[i].i = i; #endif current = index; } else { if (debuglevel) debug("Connection table full (%d slots), can't store connection.\n" "Try restarting with -x %d", connections_max, 2*connections_max); close(downfd); close(upfd); } if (debuglevel) debug("store_conn: connections_used = %d", connections_used); } static void close_conn(int i) { int index = conns[i].index; // if (connection_ctrl == 0) servers[index].c -= 1; servers[index].c -= 1; if (servers[index].c < 0) servers[index].c = 0; if (conns[i].upfd > 0) { close(conns[i].upfd); } if (conns[i].downfd > 0) { if (!udp) close(conns[i].downfd); } conns[i].upfd = conns[i].downfd = -1; if (conns[i].downn) { free(conns[i].downb); conns[i].downn=0; } if (conns[i].upn) { free(conns[i].upb); conns[i].upn=0; } #ifdef HAVE_SSL if (conns[i].ssl) { SSL_free(conns[i].ssl); conns[i].ssl = 0; } #endif // connection_ctrl = 0; connections_used--; if (connections_used < 0) connections_used = 0; if (debuglevel) debug("close_conn: connections_used = %d", connections_used); } static void usage(void) { printf("usage:\n" " pen [-C addr:port] [-X] [-b sec] [-S N] [-c N] [-e host[:port]] \\\n" " [-t sec] [-x N] [-w dir] [-HPWadfhrs] \\\n" " [-o option] \\\n" " [-E certfile] [-K keyfile] \\\n" " [-G cacertfile] [-A cacertdir] \\\n" " [-Z] [-R] [-L protocol] \\\n" " [host:]port h1[:p1[:maxc1[:hard1[:weight1[:prio1]]]]] [h2[:p2[:maxc2[:hard2[:weight2[:prio2]]]]]] ...\n" "\n" " -B host:port abuse server for naughty clients\n" " -C port control port\n" " -T sec tracking time in seconds (0 = forever) [%d]\n" " -H add X-Forwarded-For header in http requests\n" " -U use udp protocol support\n" " -P use poll() rather than select()\n" " -W use weight for server selection\n" " -X enable 'exit' command for control port\n" " -a debugging dumps in ascii format\n" " -b sec blacklist time in seconds [%d]\n" " -S N max number of servers [%d]\n" " -c N max number of clients [%d]\n" " -d debugging on (repeat -d for more)\n" " -e host:port emergency server of last resort\n" " -f stay in foregound\n" " -h use hash for initial server selection\n" " -j dir run in chroot\n" " -F file name of configuration file\n" " -l file logging on\n" " -n do not make sockets nonblocking\n" " -r bypass client tracking in server selection\n" " -s stubborn selection, i.e. don't fail over\n" " -t sec connect timeout in seconds [%d]\n" " -u user run as alternative user\n" " -p file write pid to file\n" " -x N max number of simultaneous connections [%d]\n" " -w file save statistics in HTML format in a file\n" " -o option use option in penctl format\n" " -E certfile use the given certificate in PEM format\n" " -K keyfile use the given key in PEM format (may be contained in cert)\n" " -G cacertfile file containing the CA's certificate\n" " -A cacertdir directory containing CA certificates in hashed format\n" " -Z use SSL compatibility mode\n" " -R require valid peer certificate\n" " -L protocol ssl23 (default), ssl2, ssl3 or tls1\n" "\n" "example:\n" " pen smtp mailhost1:smtp mailhost2:25 mailhost3\n" "\n", TRACKING_TIME, BLACKLIST_TIME, SERVERS_MAX, CLIENTS_MAX, TIMEOUT, CONNECTIONS_MAX); exit(0); } static void background(void) { #ifdef HAVE_DAEMON daemon(0, 0); #else int childpid; if ((childpid = fork()) < 0) { error("Can't fork"); } else { if (childpid > 0) { exit(0); /* parent */ } } int devnull_fd = open("/dev/null", O_RDWR); dup2(devnull_fd,0); /* stdin */ dup2(devnull_fd,1); /* stdout */ dup2(devnull_fd,2); /* stderr */ setsid(); signal(SIGCHLD, SIG_IGN); #endif } static void init(int argc, char **argv) { int i; int server; conns = pen_calloc(connections_max, sizeof *conns); clients = pen_calloc(clients_max, sizeof *clients); /* one extra server slot for the emergency server */ /* and one for the abuse server */ /* Check that servers_max is big enough for the command line */ if ((argc-1) > servers_max) { debug("command line specifies %d servers, max is %d; attempting to compensate", argc-1, servers_max); servers_max = argc-1; } servers = pen_calloc(servers_max+2, sizeof *servers); nservers = 0; current = 0; server = 0; for (i = 1; i < argc; i++) { servers[server].status = 0; servers[server].c = 0; /* connections... */ setaddress(&servers[server].addr, &servers[server].port, argv[i], port, &servers[server].maxc, &servers[server].hard, &servers[server].weight, &servers[server].prio, proto); servers[server].sx = 0; servers[server].rx = 0; nservers++; server++; } while (nservers < servers_max) { servers[server].status = 0; servers[server].c = 0; /* connections... */ setaddress(&servers[server].addr, &servers[server].port, "0.0.0.0", 0, &servers[server].maxc, &servers[server].hard, &servers[server].weight, &servers[server].prio, proto); servers[server].sx = 0; servers[server].rx = 0; nservers++; server++; } if (e_server) { emerg_server = server; servers[server].status = 0; servers[server].c = 0; /* connections... */ setaddress(&servers[server].addr, &servers[server].port, e_server, port, &servers[server].maxc, &servers[server].hard, &servers[server].weight, &servers[server].prio, proto); servers[server].sx = 0; servers[server].rx = 0; server++; } if (a_server) { abuse_server = server; servers[server].status = 0; servers[server].c = 0; /* connections... */ setaddress(&servers[server].addr, &servers[server].port, a_server, port, &servers[server].maxc, &servers[server].hard, &servers[server].weight, &servers[server].prio, proto); servers[server].sx = 0; servers[server].rx = 0; server++; } for (i = 0; i < clients_max; i++) { clients[i].last = 0; clients[i].addr.s_addr = 0; clients[i].cno = 0; clients[i].connects = 0; clients[i].csx = 0; clients[i].crx = 0; } for (i = 0; i < connections_max; i++) { conns[i].upfd = -1; conns[i].downfd = -1; conns[i].upn = 0; conns[i].downn = 0; } if (debuglevel) { debug("servers:"); for (i = 0; i < nservers; i++) { debug("%2d %s:%d:%d:%d:%d:%d", i, inet_ntoa(servers[i].addr), servers[i].port, servers[i].maxc, servers[i].hard, servers[i].weight, servers[i].prio); } } } /* return upstream file descriptor */ /* sticky = 1 if this client has used the server before */ static int try_server(int index, int sticky, unsigned int cli_addr, struct sockaddr_in *addr, struct sockaddr_in *addr_client) { int upfd; int n = 0; int now = (int)time(NULL); int optval = 1; if (debuglevel) debug("Trying server %d at time %d", index, now); if (servers[index].port == 0) { if (debuglevel) debug("No port for you!"); return -1; } if (now-servers[index].status < blacklist_time) { if (debuglevel) debug("Server %d is blacklisted", index); return -1; } if (servers[index].maxc != 0 && (servers[index].c >= servers[index].maxc) && (sticky == 0 || servers[index].c >= servers[index].hard)) { if (debuglevel) debug("Server %d is overloaded: sticky=%d, maxc=%d, hard=%d", index, sticky, servers[index].maxc, servers[index].hard); return -1; } if (!match_acl(servers[index].acl, cli_addr)) { if (debuglevel) debug("try_server: denied by acl"); return -1; } upfd = socket(AF_INET, protoid, 0); if (upfd < 0) error("Error opening socket: %d", errno); memset(addr, 0, sizeof *addr); addr->sin_family = AF_INET; addr->sin_addr.s_addr = servers[index].addr.s_addr; addr->sin_port = htons(servers[index].port); setsockopt(upfd, SOL_SOCKET, SO_KEEPALIVE, &optval, sizeof optval); sigaction(SIGALRM, &alrmaction, NULL); alarm(timeout); n = connect(upfd, (struct sockaddr *) addr, sizeof *addr); alarm(0); /* cancel scheduled timeout, if there is one */ if (n == -1) { if (servers[index].status == 0) debug("Server %d failed, retry in %d sec: %s", index, blacklist_time, strerror(errno)); servers[index].status = (int)time(NULL); close(upfd); return -1; } if (servers[index].status) { servers[index].status=0; if (debuglevel) debug("Server %d ok", index); } if (debuglevel) debug("Successful connect to server %d", index); return upfd; } static void open_log(char *logfile) { if (logfp) { fclose(logfp); logfp = NULL; } if (logsock >= 0) { close(logsock); logsock = -1; } if (logfile) { char *p = strchr(logfile, ':'); if (p && logfile[0] != '/') { /* log to net */ struct hostent *hp; if (debuglevel) debug("net log to %s", logfile); *p++ = '\0'; logsock = socket(PF_INET, SOCK_DGRAM, 0); if (logsock < 0) error("Can't create log socket"); logserver.sin_family = AF_INET; hp = gethostbyname(logfile); if (hp == NULL) error("Bogus host %s", logfile); memcpy(&logserver.sin_addr.s_addr, hp->h_addr, hp->h_length); logserver.sin_port = htons(atoi(p)); } else { /* log to file */ if (debuglevel) debug("file log to %s", logfile); logfp = fopen(logfile, "a"); if (!logfp) error("Can't open logfile %s", logfile); } } } static void read_cfg(char *); static void write_cfg(char *p) { int i, j; struct in_addr ip; time_t now; struct tm *nowtm; char nowstr[80]; FILE *fp = fopen(p, "w"); if (!fp) debug("Can't open file '%s'", p); now = time(NULL); nowtm = localtime(&now); strftime(nowstr, sizeof(nowstr), "%Y-%m-%d %H:%M:%S", nowtm); fprintf(fp, "# Generated by pen %s\n", nowstr); fprintf(fp, "# pen"); if (udp) fprintf(fp, " -U"); if (foreground) fprintf(fp, " -f"); if (exit_enabled) fprintf(fp, " -X"); if (servers_max != SERVERS_MAX) fprintf(fp, " -S %d", servers_max); if (clients_max != CLIENTS_MAX) fprintf(fp, " -c %d", clients_max); if (e_server) fprintf(fp, " -e %s", e_server); if (a_server) fprintf(fp, " -B %s", a_server); if (jail) fprintf(fp, " -j '%s'", jail); if (pidfile) fprintf(fp, " -p '%s'", pidfile); if (user) fprintf(fp, " -u '%s'", user); if (connections_max != CONNECTIONS_MAX) fprintf(fp, " -x %d", connections_max); fprintf(fp, " -F '%s' -C %s %s\n", p, ctrlport, listenport); for (i = 0; i < ACLS_MAX; i++) { fprintf(fp, "no acl %d\n", i); for (j = 0; j < nacls[i]; j++) { memcpy(&ip, &acls[i][j].ip, 4); fprintf(fp, "acl %d %s %s ", i, acls[i][j].permit?"permit":"deny", inet_ntoa(ip)); memcpy(&ip, &acls[i][j].mask, 4); fprintf(fp, "%s\n", inet_ntoa(ip)); } } if (asciidump) fprintf(fp, "ascii\n"); else fprintf(fp, "no ascii\n"); fprintf(fp, "blacklist %d\n", blacklist_time); if (nblock) fprintf(fp, "no block\n"); else fprintf(fp, "block\n"); fprintf(fp, "client_acl %d\n", client_acl); fprintf(fp, "control_acl %d\n", control_acl); fprintf(fp, "debug %d\n", debuglevel); if (delayed_forward) fprintf(fp, "delayed_forward\n"); else fprintf(fp, "no delayed_forward\n"); if (hash) fprintf(fp, "hash\n"); else fprintf(fp, "no hash\n"); if (http) fprintf(fp, "http\n"); else fprintf(fp, "no http\n"); if (logfile) fprintf(fp, "log %s\n", logfile); else fprintf(fp, "no log\n"); if (roundrobin) fprintf(fp, "roundrobin\n"); else fprintf(fp, "no roundrobin\n"); for (i = 0; i < nservers; i++) { fprintf(fp, "server %d acl %d address %s port %d max %d hard %d", i, servers[i].acl, inet_ntoa(servers[i].addr), servers[i].port, servers[i].maxc, servers[i].hard); if (weight) fprintf(fp, " weight %d", servers[i].weight); if (prio) fprintf(fp, " prio %d", servers[i].prio); fprintf(fp, "\n"); } if (stubborn) fprintf(fp, "stubborn\n"); else fprintf(fp, "no stubborn\n"); fprintf(fp, "timeout %d\n", timeout); fprintf(fp, "tracking %d\n", tracking_time); if (webfile) fprintf(fp, "web_stats %s\n", webfile); else fprintf(fp, "no web_stats\n"); if (weight) fprintf(fp, "weight\n"); else fprintf(fp, "no weight\n"); if (prio) fprintf(fp, "prio\n"); else fprintf(fp, "no prio\n"); fclose(fp); } static void do_cmd(char *b, void (*output)(char *, void *), void *op) { char *p, *q; int n, fl; FILE *fp; if (debuglevel) { debug("do_cmd(%s, %p, %p)", b, output, op); } p = strchr(b, '\r'); if (p) *p = '\0'; p = strchr(b, '\n'); if (p) *p = '\0'; p = strtok(b, " "); if (p == NULL) return; if (!strcmp(p, "acl")) { char *no, *pd, *ip, *ma; /* acl N permit|deny ipaddr [mask] */ if ((no = strtok(NULL, " ")) && (pd = strtok(NULL, " ")) && (ip = strtok(NULL, " "))) { int a = atoi(no); int permit; struct in_addr ipaddr, mask; ma = strtok(NULL, " "); if (!ma) ma = "255.255.255.255"; if (!strcmp(pd, "permit")) permit = 1; else if (!strcmp(pd, "deny")) permit = 0; else { debug("acl: expected permit|deny"); return; } if (!inet_aton(ip, &ipaddr)) { debug("acl: bogus address '%s'\n", ip); return; } if (!inet_aton(ma, &mask)) { debug("acl: bogus mask '%s'\n", ma); return; } add_acl(a, ipaddr.s_addr, mask.s_addr, permit); } } else if (!strcmp(p, "ascii")) { asciidump = 1; } else if (!strcmp(p, "blacklist")) { p = strtok(NULL, " "); if (p) blacklist_time = atoi(p); sprintf(b, "%d\n", blacklist_time); output(b, op); } else if (!strcmp(p, "block")) { nblock = 0; fl = fcntl(listenfd, F_GETFL, 0); fcntl(listenfd, F_SETFL, fl & ~O_NONBLOCK); fl = fcntl(ctrlfd, F_GETFL, 0); fcntl(ctrlfd, F_SETFL, fl & ~O_NONBLOCK); } else if (!strcmp(p, "client_acl")) { p = strtok(NULL, " "); if (p) client_acl = atoi(p); if (client_acl < 0 || client_acl >= ACLS_MAX) client_acl = 0; sprintf(b, "%d\n", client_acl); output(b, op); } else if (!strcmp(p, "clients_max")) { sprintf(b, "%d\n", clients_max); output(b, op); } else if (!strcmp(p, "conn_max")) { sprintf(b, "%d\n", connections_max); output(b, op); } else if (!strcmp(p, "control")) { sprintf(b, "%s\n", ctrlport); output(b, op); } else if (!strcmp(p, "control_acl")) { p = strtok(NULL, " "); if (p) control_acl = atoi(p); if (control_acl < 0 || control_acl >= ACLS_MAX) control_acl = 0; sprintf(b, "%d\n", control_acl); output(b, op); } else if (!strcmp(p, "debug")) { p = strtok(NULL, " "); if (p) debuglevel = atoi(p); sprintf(b, "%d\n", debuglevel); output(b, op); } else if (!strcmp(p, "delayed_forward")) { delayed_forward = 1; } else if (!strcmp(p, "exit")) { if (exit_enabled) { quit(0); } else { sprintf(b, "Exit is not enabled; restart with -X flag\n"); output(b, op); } } else if (!strcmp(p, "hash")) { hash = 1; } else if (!strcmp(p, "http")) { http = 1; } else if (!strcmp(p, "include")) { p = strtok(NULL, " "); if (p) { read_cfg(p); } else { debug("Usage: include filename"); } } else if (!strcmp(p, "listen")) { sprintf(b, "%s\n", listenport); output(b, op); } else if (!strcmp(p, "log")) { p = strtok(NULL, " "); if (p) { free(logfile); logfile = pen_strdup(p); open_log(logfile); } if (logfile) { sprintf(b, "%s\n", logfile); output(b, op); } } else if (!strcmp(p, "mode")) { sprintf(b, "%sblock %sdelayed_forward %shash %sroundrobin %sstubborn %sweight %sprio\n", nblock?"no ":"", delayed_forward?"":"no ", hash?"":"no ", roundrobin?"":"no ", stubborn?"":"no ", weight?"":"no ", prio?"":"no "); output(b, op); } else if (!strcmp(p, "no")) { p = strtok(NULL, " "); if (p == NULL) return; if (!strcmp(p, "acl")) { int a; p = strtok(NULL, " "); a = atoi(p); del_acl(a); } else if (!strcmp(p, "ascii")) { asciidump = 0; } else if (!strcmp(p, "block")) { nblock = 1; fl = fcntl(listenfd, F_GETFL, 0); fcntl(listenfd, F_SETFL, fl | O_NONBLOCK); fl = fcntl(ctrlfd, F_GETFL, 0); fcntl(ctrlfd, F_SETFL, fl | O_NONBLOCK); } else if (!strcmp(p, "delayed_forward")) { delayed_forward = 0; } else if (!strcmp(p, "hash")) { hash = 0; } else if (!strcmp(p, "http")) { http = 0; } else if (!strcmp(p, "log")) { logfile = NULL; if (logfp) fclose(logfp); logfp = NULL; } else if (!strcmp(p, "prio")) { prio = 0; } else if (!strcmp(p, "roundrobin")) { roundrobin = 0; } else if (!strcmp(p, "stubborn")) { stubborn = 0; } else if (!strcmp(p, "web_stats")) { webfile = NULL; } else if (!strcmp(p, "weight")) { weight = 0; } } else if (!strcmp(p, "pid")) { sprintf(b, "%ld\n", (long)getpid()); output(b, op); } else if (!strcmp(p, "prio")) { prio = 1; } else if (!strcmp(p, "recent")) { time_t when = time(NULL); p = strtok(NULL, " "); if (p) when -= atoi(p); else when -= 300; for (n = 0; n < clients_max; n++) { if (clients[n].last < when) continue; sprintf(b, "%s connects %ld sx %lld rx %lld\n", inet_ntoa(clients[n].addr), clients[n].connects, clients[n].csx, clients[n].crx); output(b, op); } } else if (!strcmp(p, "roundrobin")) { roundrobin = 1; } else if (!strcmp(p, "server")) { p = strtok(NULL, " "); if (p == NULL) return; n = atoi(p); if (n < 0 || n >= nservers) return; while ((p = strtok(NULL, " ")) && (q = strtok(NULL, " "))) { if (!strcmp(p, "acl")) { servers[n].acl = atoi(q); } else if (!strcmp(p, "address")) { setipaddress(&servers[n].addr, q); } else if (!strcmp(p, "port")) { servers[n].port = atoi(q); } else if (!strcmp(p, "max")) { servers[n].maxc = atoi(q); } else if (!strcmp(p, "hard")) { servers[n].hard = atoi(q); } else if (!strcmp(p, "blacklist")) { servers[n].status = time(NULL)+atoi(q)-blacklist_time; } else if (!strcmp(p, "weight")) { servers[n].weight = atoi(q); } else if (!strcmp(p, "prio")) { servers[n].prio = atoi(q); } } } else if (!strcmp(p, "servers")) { for (n = 0; n < nservers; n++) { sprintf(b, "%d addr %s port %d conn %d max %d hard %d weight %d prio %d sx %llu rx %llu\n", n, inet_ntoa(servers[n].addr), servers[n].port, servers[n].c, servers[n].maxc, servers[n].hard, servers[n].weight, servers[n].prio, servers[n].sx, servers[n].rx); output(b, op); } } else if (!strcmp(p, "status")) { p = webfile; webfile = "/tmp/webfile.html"; webstats(); fp = fopen(webfile, "r"); webfile = p; if (fp == NULL) return; while (fgets(b, sizeof b, fp)) { output(b, op); } fclose(fp); } else if (!strcmp(p, "stubborn")) { stubborn = 1; } else if (!strcmp(p, "timeout")) { p = strtok(NULL, " "); if (p) timeout = atoi(p); sprintf(b, "%d\n", timeout); output(b, op); } else if (!strcmp(p, "tracking")) { p = strtok(NULL, " "); if (p) tracking_time = atoi(p); sprintf(b, "%d\n", tracking_time); output(b, op); } else if (!strcmp(p, "web_stats")) { p = strtok(NULL, " "); if (p) { free(webfile); webfile = pen_strdup(p); } if (webfile) { sprintf(b, "%s\n", webfile); output(b, op); } } else if (!strcmp(p, "weight")) { weight = 1; } else if (!strcmp(p, "write")) { p = strtok(NULL, " "); if (!p) p = cfgfile; if (p) { write_cfg(p); } else { debug("write: no file"); } } else { debug("do_cmd: ignoring command starting with '%s'", p); } } static void output_net(char *b, void *op) { int *fp = op; write(*fp, b, strlen(b)); } static void output_file(char *b, void *op) { FILE *fp = op; fputs(b, fp); } static void do_ctrl(int downfd, struct sockaddr_in *cli_addr) { char b[4096]; int n, max_b = sizeof b; if (!match_acl(control_acl, cli_addr->sin_addr.s_addr)) { debug("do_ctrl: not from there"); } else { n = read(downfd, b, max_b-1); if (n != -1) { b[n] = '\0'; do_cmd(b, output_net, &downfd); } } close(downfd); } static void read_cfg(char *cf) { FILE *fp; char b[4096]; if (cf == NULL) return; fp = fopen(cf, "r"); if (fp == NULL) { debug("Can't read config file '%s'\n", cf); return; } while (fgets(b, sizeof b, fp)) { do_cmd(b, output_file, stdout); } fclose(fp); } static int server_by_weight(void) { int best_server = -1; int best_load = -1; int i, load; int now = (int)time(NULL); if (debuglevel) debug("server_by_weight()"); for (i = 0; i < nservers; i++) { if (now-servers[i].status < blacklist_time || servers[i].weight == 0) { continue; } load = (WEIGHT_FACTOR*servers[i].c)/servers[i].weight; if (best_server == -1 || load < best_load) { if (debuglevel) debug("Server %d has load %d", i, load); best_load = load; best_server = i; } } if (debuglevel) debug("Least loaded server = %d", best_server); return best_server; } static int server_by_prio(void) { int best_server = -1; int best_prio = -1; int i, prio; int now = (int)time(NULL); if (debuglevel) debug("server_by_prio()"); for (i = 0; i < nservers; i++) { if (now-servers[i].status < blacklist_time) { continue; } prio = servers[i].prio; if (best_server == -1 || prio < best_prio) { if (debuglevel) debug("Server %d has prio %d", i, prio); best_prio = prio; best_server = i; } } if (debuglevel) debug("Best prio server = %d", best_server); return best_server; } static void add_client(int downfd, struct sockaddr_in *cli_addr) { int upfd = -1, clino = -1, index = -1, n, pd; unsigned int cli = cli_addr->sin_addr.s_addr; struct sockaddr_in serv_addr, addr_client; #ifdef HAVE_SSL SSL *ssl = NULL; /* check the ssl stuff before picking servers */ if (ssl_context) { ssl = SSL_new(ssl_context); if (ssl == NULL) { int err = ERR_get_error(); debug("SSL: error allocating handle: %s", ERR_error_string(err, NULL)); goto Failure; } SSL_set_fd(ssl, downfd); SSL_set_accept_state(ssl); } #endif pd = match_acl(client_acl, cli); if (!pd) { if (debuglevel) debug("add_client: denied by acl"); if (abuse_server != -1) { upfd = try_server(abuse_server, 0, cli, &serv_addr, &addr_client); if (upfd != -1) goto Success; } goto Failure; } if (!roundrobin) { // Load balancing with memory == No roundrobin clino = lookup_client(cli_addr->sin_addr); if (debuglevel) debug("lookup_client returns %d", clino); if (clino != -1) { index = clients[clino].cno; if (index != emerg_server && index != abuse_server) { upfd = try_server(index, 1, cli, &serv_addr, &addr_client); if (upfd != -1) goto Success; } } } if (prio) { index = server_by_prio(); if (index != -1) { upfd = try_server(index, 0, cli, &serv_addr, &addr_client); if (upfd != -1) goto Success; } } if (weight) { index = server_by_weight(); if (index != -1) { upfd = try_server(index, 0, cli, &serv_addr, &addr_client); if (upfd != -1) goto Success; } } if (hash) { index = cli % nservers; upfd = try_server(index, 0, cli, &serv_addr, &addr_client); if (upfd != -1) goto Success; } if (!stubborn) { index = current; do { index = (index + 1) % nservers; if ((upfd = try_server(index, 0, cli, &serv_addr, &addr_client)) != -1) goto Success; } while (index != current); if (upfd == -1) goto Failure; } /* if we get here, we're dead */ if (emerg_server != -1) { if (!emergency) debug("Using emergency server"); emergency=1; if ((upfd = try_server(emerg_server, 0, cli, &serv_addr, &addr_client)) != -1) goto Success2; } debug("Couldn't find a server for client"); Failure: if (!udp){ if (downfd != -1) close(downfd); if (upfd != -1) close(upfd); } return; Success: emergency=0; Success2: n = store_client(clino, cli_addr->sin_addr, index); #ifdef HAVE_SSL store_conn(downfd, ssl, upfd, n, index, &serv_addr, cli_addr, &addr_client); #else store_conn(downfd, upfd, n, index, &serv_addr, cli_addr, &addr_client); #endif return; } static int open_listener(char *a) { int listenfd; struct sockaddr_in serv_addr; char b[1024], *p; int one = 1; int fl; int optval = 1; memset(&serv_addr, 0, sizeof serv_addr); serv_addr.sin_family = AF_INET; p = strchr(a, ':'); if (p) { strncpy(b, a, sizeof b); b[sizeof b-1] = '\0'; p = strchr(b, ':'); *p = '\0'; port = getport(p+1, proto); setipaddress(&serv_addr.sin_addr, b); snprintf(b, (sizeof(b) - 1), "%s", inet_ntoa(serv_addr.sin_addr)); } else { port = getport(a, proto); serv_addr.sin_addr.s_addr = htonl(INADDR_ANY); sprintf(b, "0.0.0.0"); } serv_addr.sin_port = htons(port); if ((listenfd = socket(AF_INET, protoid, 0)) < 0) { error("can't open stream socket"); } if (debuglevel) debug("local address=[%s:%d]", b, port); setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, (char *)&one, sizeof one); setsockopt(listenfd, SOL_SOCKET, SO_KEEPALIVE, &optval, sizeof optval); if (bind(listenfd, (struct sockaddr *) &serv_addr, sizeof serv_addr) < 0) { error("can't bind local address"); } if (nblock) { if ((fl = fcntl(listenfd, F_GETFL, 0)) == -1) error("Can't fcntl, errno = %d", errno); if (fcntl(listenfd, F_SETFL, fl | O_NONBLOCK) == -1) error("Can't fcntl, errno = %d", errno); } listen(listenfd, 50); return listenfd; } static int flush_down(int i) { int n; struct sockaddr name; size_t size = sizeof(struct sockaddr); #ifdef HAVE_SSL SSL *ssl = conns[i].ssl; if (ssl) { n = SSL_write(ssl, conns[i].downbptr, conns[i].downn); if (debuglevel) debug("SSL_write returns %d\n", n); if (n < 0) { int err = SSL_get_error(ssl, n); if (debuglevel) debug("SSL_write returns %d (SSL error %d)", n, err); if (err == SSL_ERROR_WANT_READ || err == SSL_ERROR_WANT_WRITE) { return 0; } } } else { n = write(conns[i].downfd, conns[i].downbptr, conns[i].downn); } #else if (!udp) n = write(conns[i].downfd, conns[i].downbptr, conns[i].downn); else n = sendto(conns[i].downfd, conns[i].downbptr, conns[i].downn, 0, (struct sockaddr *) &name, size); #endif /* HAVE_SSL */ if (debuglevel > 1) debug("flush_down(%d) %d bytes", i, n); if (n > 0) { conns[i].downn -= n; if (conns[i].downn == 0) free(conns[i].downb); else conns[i].downbptr += n; clients[conns[i].clt].csx += n; } return n; } /* This only talks upstream and does not need ssl */ static int flush_up(int i) { int n; struct sockaddr name; size_t size = sizeof(struct sockaddr); if (!udp) n = write(conns[i].upfd, conns[i].upbptr, conns[i].upn); else n = sendto(conns[i].upfd, conns[i].upbptr, conns[i].upn, 0, (struct sockaddr *) &name, size); if (debuglevel > 1) debug("flush_up(%d) %d bytes", i, n); if (n > 0) { conns[i].upn -= n; if (conns[i].upn == 0) free(conns[i].upb); else conns[i].upbptr += n; } return n; } static void mainloop_select(void) { int downfd; socklen_t clilen; fd_set w_read, w_write, w_error; int i, w_max, imax; usr1action.sa_handler = stats; sigemptyset(&usr1action.sa_mask); usr1action.sa_flags = 0; sigaction(SIGUSR1, &usr1action, NULL); hupaction.sa_handler = restart_log; sigemptyset(&hupaction.sa_mask); hupaction.sa_flags = 0; sigaction(SIGHUP, &hupaction, NULL); termaction.sa_handler = quit; sigemptyset(&termaction.sa_mask); termaction.sa_flags = 0; sigaction(SIGTERM, &termaction, NULL); alrmaction.sa_handler = alarm_handler; sigemptyset(&alrmaction.sa_mask); alrmaction.sa_flags = 0; signal(SIGPIPE, SIG_IGN); loopflag = 1; if (debuglevel) debug("mainloop_select()"); while (loopflag) { int n; if (do_stats) { if (webfile) webstats(); else textstats(); do_stats=0; } if (do_restart_log) { if (logfp) { fclose(logfp); logfp = fopen(logfile, "a"); if (!logfp) error("Can't open logfile %s", logfile); } read_cfg(cfgfile); do_restart_log=0; } FD_ZERO(&w_read); FD_ZERO(&w_write); FD_ZERO(&w_error); w_max = 0; /* no point accepting connections we can't handle */ if (debuglevel > 1) debug("last = %d, used = %d, max = %d", connections_last, connections_used, connections_max); if (connections_used < connections_max) { if (!udp || udpused == 0){ FD_SET(listenfd, &w_read); /* new connections */ w_max = listenfd+1; } } else { if (debuglevel) debug("Not listening"); } if (ctrlfd != -1) { FD_SET(ctrlfd, &w_read); if (ctrlfd > listenfd) w_max = ctrlfd+1; } /* add sockets from open connections */ if (udp) /* udp has a secuential proccess */ imax = 1; else imax = connections_max; for (i = 0; i < imax; i++) { if (conns[i].downfd == -1) continue; if (conns[i].upn == 0) { FD_SET(conns[i].downfd, &w_read); if (conns[i].downfd+1 > w_max) { w_max = conns[i].downfd+1; } } else { FD_SET(conns[i].upfd, &w_write); if (conns[i].upfd+1 > w_max) { w_max = conns[i].upfd+1; } } if (conns[i].downn == 0) { FD_SET(conns[i].upfd, &w_read); if (conns[i].upfd+1 > w_max) { w_max = conns[i].upfd+1; } } else { FD_SET(conns[i].downfd, &w_write); if (conns[i].downfd+1 > w_max) { w_max = conns[i].downfd+1; } } } /* Wait for a connection from a client process. */ n = select(w_max, &w_read, &w_write, /*&w_error*/0, 0); if (n < 0 && errno != EINTR) { perror("select"); error("Error on select"); } if (n <= 0) continue; if (!udp || (udp && (udpused == 0))){ if (FD_ISSET(listenfd, &w_read)) { struct sockaddr_in cli_addr; clilen = sizeof cli_addr; if (!udp) { downfd = accept(listenfd, (struct sockaddr *) &cli_addr, &clilen); if (downfd < 0) { if (debuglevel) perror("accept"); continue; } if (clilen == 0) { if (debuglevel) perror("clilen"); continue; } } else { downfd = listenfd; udpused = 1; } add_client(downfd, &cli_addr); } } /* check control port */ if (ctrlfd != -1 && FD_ISSET(ctrlfd, &w_read)) { // connection_ctrl = 1; struct sockaddr_in cli_addr; clilen = sizeof cli_addr; downfd = accept(ctrlfd, (struct sockaddr *) &cli_addr, &clilen); if (downfd < 0) { if (debuglevel) perror("accept"); continue; } if (clilen == 0) { if (debuglevel) perror("clilen"); continue; } do_ctrl(downfd, &cli_addr); } /* check sockets from open connections */ if (udp){ i=0; if (conns[i].downfd == -1 || conns[i].upfd == -1 || udpused==3){ alarm(0); close_conn(i); udpused=0; } else { if (udpused!=2){ sigaction(SIGALRM, &alrmaction, NULL); alarm(timeout); if (FD_ISSET(conns[i].downfd, &w_read)) { udpused = 2; if (copy_up(i) < 0) { udpused = 0; close_conn(i); } } } if (FD_ISSET(conns[i].upfd, &w_read)) { copy_down(i); close_conn(i); alarm(0); udpused=0; } } } else { /* TCP */ for (i = 0; i < connections_max; i++) { if (conns[i].downfd == -1) continue; if (FD_ISSET(conns[i].downfd, &w_read)) { if (copy_up(i) < 0) { close_conn(i); continue; } } if (FD_ISSET(conns[i].upfd, &w_read)) { if (copy_down(i) < 0) { close_conn(i); continue; } } if (FD_ISSET(conns[i].downfd, &w_write)) { if (flush_down(i) < 0) { close_conn(i); continue; } } if (FD_ISSET(conns[i].upfd, &w_write)) { if (flush_up(i) < 0) { close_conn(i); continue; } } } } } } #ifdef HAVE_POLL static void dump_pollfd(struct pollfd *ufds, int nfds) { int i; for (i = 0; i < nfds; i++) { debug("%d: <%d,%d,%d>", i, ufds[i].fd, (int)ufds[i].events, (int)ufds[i].revents); } } static void mainloop_poll(void) { int downfd, clilen; struct sockaddr_in cli_addr; struct pollfd *ufds; int i, j, nfds; short downevents, upevents; signal(SIGUSR1, stats); signal(SIGHUP, restart_log); signal(SIGTERM, quit); signal(SIGPIPE, SIG_IGN); loopflag = 1; ufds = pen_malloc((connections_max*2+2)*sizeof *ufds); if (debuglevel) debug("POLLIN = %d, POLLOUT = %d", (int)POLLIN, (int)POLLOUT); if (debuglevel) debug("mainloop_poll()"); while (loopflag) { int n; if (do_stats) { if (webfile) webstats(); else textstats(); do_stats=0; } if (do_restart_log) { if (logfp) { fclose(logfp); logfp = fopen(logfile, "a"); if (!logfp) error("Can't open logfile %s", logfile); } read_cfg(cfgfile); do_restart_log=0; } nfds = 0; ufds[nfds].fd = listenfd; ufds[nfds++].events = POLLIN; /* new connections */ if (ctrlfd != -1) { ufds[nfds].fd = ctrlfd; ufds[nfds++].events = POLLIN; } /* add sockets from open connections */ if (debuglevel) debug("filling pollfd structure"); for (i = 0; i < connections_max; i++) { if (conns[i].downfd == -1) continue; upevents = downevents = 0; if (conns[i].upn == 0) downevents |= POLLIN; else upevents |= POLLOUT; if (conns[i].downn == 0) upevents |= POLLIN; else downevents |= POLLOUT; if (downevents) { ufds[nfds].fd = conns[i].downfd; ufds[nfds++].events = downevents; } if (upevents) { ufds[nfds].fd = conns[i].upfd; ufds[nfds++].events = upevents; } } if (debuglevel) dump_pollfd(ufds, nfds); /* Wait for a connection from a client process. */ n = poll(ufds, nfds, -1); if (debuglevel) debug("n = %d", n); if (n < 0 && errno != EINTR) { perror("poll"); error("Error on poll"); } if (n <= 0) continue; if (debuglevel) dump_pollfd(ufds, nfds); j = 0; if (debuglevel) debug("checking pollfd structure"); if (debuglevel) debug("revents[%d] = %d", j, (int)ufds[j].revents); if (ufds[j].revents & POLLIN) { clilen = sizeof cli_addr; downfd = accept(listenfd, (struct sockaddr *) &cli_addr, &clilen); if (downfd < 0) { if (debuglevel) perror("accept"); continue; } if (clilen == 0) { if (debuglevel) perror("clilen"); continue; } add_client(downfd, &cli_addr); } j++; /* check control port */ if (ctrlfd != -1 && (ufds[j++].revents & POLLIN)) { if (debuglevel) debug("revents[%d] = %d", j-1, (int)POLLIN); clilen = sizeof cli_addr; downfd = accept(ctrlfd, (struct sockaddr *) &cli_addr, &clilen); if (downfd < 0) { if (debuglevel) perror("accept"); continue; } if (clilen == 0) { if (debuglevel) perror("clilen"); continue; } do_ctrl(downfd, &cli_addr); j++; } /* check sockets from open connections */ for (i = 0; i < connections_max; i++) { if (conns[i].downfd == -1) continue; if (conns[i].downfd != ufds[j].fd) downevents = 0; else downevents = ufds[j++].revents; if (conns[i].upfd != ufds[j].fd) upevents = 0; else upevents = ufds[j++].revents; if (debuglevel) { debug("conn = %d, upevents = %d, downevents = %d", i, upevents, downevents); if (downevents || upevents) { debug("down[%d] = %d, up[%d] = %d", i, downevents, i, upevents); } } if (downevents & POLLIN) { if (copy_up(i) < 0) { close_conn(i); continue; } } if (upevents & POLLIN) { if (copy_down(i) < 0) { close_conn(i); continue; } } if (downevents & POLLOUT) { if (flush_down(i) < 0) { close_conn(i); continue; } } if (upevents & POLLOUT) { if (flush_up(i) < 0) { close_conn(i); continue; } } } } } #endif /* HAVE_POLL */ #ifdef HAVE_KQUEUE static void dump_kevent(struct kevent *kev, int nfds) { int i; struct kevent *kptr; for (i = 0; i < nfds; i++) { kptr = &kev[i]; debug("kev[%d]: ", i, kptr->ident, kptr->filter, kptr->flags, kptr->fflags, kptr->data, kptr->udata); } } static void mainloop_kqueue(void) { int downfd, clilen; int kq; struct kevent *kev, *kptr; connection *conn; struct sockaddr_in cli_addr; int i, j, nfds; short downevents, upevents; loopflag = 1; kq = kqueue(); if (kq == -1) { perror("kqueue"); error("Error creating kernel queue"); } kev = pen_malloc((connections_max*2+2)*sizeof *kev); if (debuglevel) debug("mainloop_kqueue()"); while (loopflag) { int n; if (do_stats) { if (webfile) webstats(); else textstats(); do_stats=0; } if (do_restart_log) { if (logfp) { fclose(logfp); logfp = fopen(logfile, "a"); if (!logfp) error("Can't open logfile %s", logfile); } read_cfg(cfgfile); do_restart_log=0; } kptr = kev; nfds = 0; /* FIXME: these two don't need to be done every loop; * they'll persist until the sockets are closed. But moving * them outside the loop adds complications (kptr initial * setting etc) */ EV_SET(kptr++, listenfd, EVFILT_READ, EV_ADD, 0, 0, 0); nfds++; if (ctrlfd != -1) { EV_SET(kptr++, ctrlfd, EVFILT_READ, EV_ADD, 0, 0, 0); nfds++; } /* add sockets from open connections */ if (debuglevel) debug("filling kqueue structure"); for (i = 0; i < connections_max; i++) { if (conns[i].downfd == -1) continue; upevents = downevents = 0; if (conns[i].upn == 0) { EV_SET(kptr++, conns[i].downfd, EVFILT_READ, EV_ADD | EV_ONESHOT, 0, 0, &conns[i]); nfds++; } else { EV_SET(kptr++, conns[i].upfd, EVFILT_WRITE, EV_ADD | EV_ONESHOT, 0, 0, &conns[i]); nfds++; } if (conns[i].downn == 0) { EV_SET(kptr++, conns[i].upfd, EVFILT_READ, EV_ADD | EV_ONESHOT, 0, 0, &conns[i]); nfds++; } else { EV_SET(kptr++, conns[i].downfd, EVFILT_WRITE, EV_ADD | EV_ONESHOT, 0, 0, &conns[i]); nfds++; } } if (debuglevel) dump_kevent(kev, nfds); /* Wait for a connection from a client process. */ n = kevent(kq, kev, nfds, kev, nfds, NULL); if (debuglevel) debug("n = %d", n); if (n < 0 && errno != EINTR) { perror("kevent"); error("Error on kevent"); } if (n <= 0) continue; if (debuglevel) debug("checking kqueue structure"); if (debuglevel) dump_kevent(kev, n); for(j = 0 ; j < n ; j++) { kptr = &kev[j]; /* check listener */ if (kptr->ident == listenfd) { clilen = sizeof cli_addr; downfd = accept(listenfd, (struct sockaddr *) &cli_addr, &clilen); if (downfd < 0) { if (debuglevel) perror("accept"); continue; } if (clilen == 0) { if (debuglevel) perror("clilen"); continue; } add_client(downfd, &cli_addr); continue; } /* check control port */ if (ctrlfd != -1 && kptr->ident == ctrlfd) { clilen = sizeof cli_addr; downfd = accept(ctrlfd, (struct sockaddr *) &cli_addr, &clilen); if (downfd < 0) { if (debuglevel) perror("accept"); continue; } if (clilen == 0) { if (debuglevel) perror("clilen"); continue; } do_ctrl(downfd, &cli_addr); continue; } /* check sockets from open connections */ conn = (connection *)kptr->udata; if (conn->downfd == -1) continue; if (conn->downfd != kptr->ident) downevents = 0; else downevents = kptr->filter; if (conn->upfd != kptr->ident) upevents = 0; else upevents = kptr->filter; i = conn->i; if (debuglevel) { debug("conn = %d, upevents = %d, downevents = %d", i, upevents, downevents); } if (downevents == EVFILT_READ) { if (copy_up(i) < 0) { close_conn(i); continue; } } if (upevents == EVFILT_READ) { if (copy_down(i) < 0) { close_conn(i); continue; } } if (downevents == EVFILT_WRITE) { if (flush_down(i) < 0) { close_conn(i); continue; } } if (upevents == EVFILT_WRITE) { if (flush_up(i) < 0) { close_conn(i); continue; } } } } } #endif /* HAVE_KQUEUE */ static int options(int argc, char **argv) { int c; char b[1024]; #ifdef HAVE_SSL char *opt = "B:C:F:S:T:b:c:e:j:l:o:p:t:u:w:x:DHPQWXUadfhnrsE:K:G:A:ZRL:"; #else char *opt = "B:C:F:S:T:b:c:e:j:l:o:p:t:u:w:x:DHPQWXUadfhnrs"; #endif while ((c = getopt(argc, argv, opt)) != -1) { switch (c) { case 'B': a_server = optarg; break; case 'C': ctrlport = optarg; break; case 'D': delayed_forward = 1; break; case 'F': cfgfile = optarg; break; case 'H': http = 1; break; case 'Q': use_kqueue = 1; break; case 'P': use_poll = 1; break; case 'S': servers_max = atoi(optarg); break; case 'T': tracking_time = atoi(optarg); break; case 'U': udp = 1; break; case 'W': weight = 1; break; case 'X': exit_enabled = 1; break; case 'a': asciidump = 1; break; case 'b': blacklist_time = atoi(optarg); break; case 'c': clients_max = atoi(optarg); break; case 'd': debuglevel++; break; case 'e': e_server = optarg; break; case 'f': foreground = 1; break; case 'h': hash = 1; break; case 'j': jail = optarg; break; case 'l': logfile = pen_strdup(optarg); break; case 'n': nblock = 0; break; case 'o': snprintf(b, sizeof b, "%s", optarg); do_cmd(optarg, output_file, stdout); break; case 'p': pidfile = optarg; break; case 'r': roundrobin = 1; break; case 's': stubborn = 1; break; case 't': timeout = atoi(optarg); if (timeout < 1) { usage(); } break; case 'u': user = optarg; break; case 'x': connections_max = atoi(optarg); break; case 'w': webfile = pen_strdup(optarg); break; #ifdef HAVE_SSL case 'E': certfile = optarg; break; case 'K': keyfile = optarg; break; case 'G': cacert_file = optarg; break; case 'A': cacert_dir = optarg; break; case 'Z': ssl_compat = 1; break; case 'R': require_peer_cert = 1; break; case 'L': if (strcmp(optarg, "ssl23") == 0) ssl_protocol = SRV_SSL_V23; else if (strcmp(optarg, "ssl2") == 0) ssl_protocol = SRV_SSL_V2; else if (strcmp(optarg, "ssl3") == 0) ssl_protocol = SRV_SSL_V3; else if (strcmp(optarg, "tls1") == 0) ssl_protocol = SRV_SSL_TLS1; else { fprintf(stderr, "protocol version %s not known\n", optarg); exit(1); } break; #endif /* HAVE_SSL */ case '?': default: usage(); } } return optind; } int main(int argc, char **argv) { int i; struct passwd *pwd = NULL; struct rlimit r; int n = options(argc, argv); argc -= n; argv += n; if (argc < 1) { usage(); } if ((connections_max*2+10) > FD_SETSIZE && !use_poll) error("Number of simultaneous connections to large.\n" "Maximum is %d, or re-build pen with larger FD_SETSIZE", (FD_SETSIZE-10)/2); getrlimit(RLIMIT_CORE, &r); r.rlim_cur = r.rlim_max; setrlimit(RLIMIT_CORE, &r); signal(SIGCHLD, SIG_IGN); if (!foreground) { background(); } #ifdef HAVE_SSL if (certfile) { ssl_init(); } #endif /* we must open listeners before dropping privileges */ /* Control port */ if (ctrlport) ctrlfd = open_listener(ctrlport); else ctrlfd = -1; /* Balancing port */ if (udp) { protoid = SOCK_DGRAM; proto = "udp"; } listenport = argv[0]; listenfd = open_listener(listenport); init(argc, argv); /* we must look up user id before chrooting */ if (user) { if (debuglevel) debug("Run as user %s", user); pwd = getpwnam(user); if (pwd == NULL) error("Can't getpwnam(%s)", user); } /* we must chroot before dropping privileges */ if (jail) { if (debuglevel) debug("Run in %s", jail); if (chroot(jail) == -1) error("Can't chroot(%s)", jail); } /* ready to defang ourselves */ if (pwd) { if (setgid(pwd->pw_gid) == -1) error("Can't setgid(%d)", (int)pwd->pw_gid); if (setuid(pwd->pw_uid) == -1) error("Can't setuid(%d)", (int)pwd->pw_uid); } read_cfg(cfgfile); open_log(logfile); if (pidfile) { pidfp = fopen(pidfile, "w"); if (!pidfp) { error("Can't create pidfile %s", pidfile); exit(1); } fprintf(pidfp, "%d", (int)getpid()); fclose(pidfp); } #ifdef HAVE_KQUEUE if (use_kqueue) mainloop_kqueue(); #else if (use_kqueue) error("You don't have kqueue()"); #endif /* HAVE_KQUEUE */ #ifdef HAVE_POLL if (use_poll) mainloop_poll(); #else if (use_poll) error("You don't have poll()"); #endif /* HAVE_POLL */ if (!use_kqueue && !use_poll) mainloop_select(); if (debuglevel) debug("Exiting, cleaning up..."); if (logfp) fclose(logfp); for (i = 0; i < connections_max; i++) { close_conn(i); } close(listenfd); if (pidfile) { unlink(pidfile); } return 0; } pen-0.20.2/penstats0000755000175000017500000000045610332213025011061 00000000000000#!/bin/sh PENHOME=/home/ulric/Projekt/pen PIDFILE=$PENHOME/pid WEBFILE=$PENHOME/webstats.html # This will make pen save its stats kill -USR1 `cat $PIDFILE` # We don't know how long it will take; wait a few seconds sleep 2 # And display the results echo "Content-type: text/html" echo cat $WEBFILE pen-0.20.2/penlog.c0000644000175000017500000000434712245326731010743 00000000000000/* Copyright (C) 2000-2013 Ulric Eriksson 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; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include #include #define MAXBUF 1024 static void error(char *fmt, ...) { char b[4096]; va_list ap; va_start(ap, fmt); vsnprintf(b, sizeof b, fmt, ap); fprintf(stderr, "%s\n", b); va_end(ap); exit(EXIT_FAILURE); } int main(int argc, char **argv) { int sk; struct addrinfo *client, *server; struct addrinfo hints; char buf[MAXBUF]; int n; if (argc < 3) { error("Usage: %s server_ip server_port [my_ip]", argv[0]); } memset(&hints, 0, sizeof hints); hints.ai_socktype = SOCK_DGRAM; hints.ai_flags = AI_ADDRCONFIG; n = getaddrinfo(argv[1], argv[2], &hints, &server); if (n != 0) { error("getaddrinfo: %s", gai_strerror(n)); } sk = socket(server->ai_family, server->ai_socktype, server->ai_protocol); if (sk == -1) { error("Problem creating socket"); } if (argc > 3) { /* set local address */ memset(&hints, 0, sizeof hints); hints.ai_socktype = SOCK_DGRAM; hints.ai_flags = AI_ADDRCONFIG; n = getaddrinfo(argv[3], NULL, &hints, &client); if (n != 0) { error("getaddrinfo: %s", gai_strerror(n)); } if (bind(sk, client->ai_addr, client->ai_addrlen) != 0) { error("Problem creating socket"); } } while (fgets(buf, sizeof buf, stdin)) { n = sendto(sk, buf, strlen(buf), 0, server->ai_addr, server->ai_addrlen); if (n < 0) { perror("Problem sending data"); } } return 0; } pen-0.20.2/pen.10000644000175000017500000001443012245051573010150 00000000000000.TH PEN 1 LOCAL .SH NAME pen .SH SYNOPSIS .B pen [-b sec] [-S N] [-c N] [-e host:port] [-t sec] [-x N] [-j dir] [-u user] [-F cfgfile] [-l logfile] [-p file ] [-w file] [-C port] [-T sec] [-HWXadfhnrs] [-o option] [-E certfile] [-K keyfile] [-G cacertfile] [-A cacertdir] [-Z] [-R] [-L protocol] [host:]port h1[:p1[:maxc1[:hard1[:weight1[:prio1]]]]] [h2[:p2[:maxc2[:hard2[:weight2[:prio2]]]]]] ... .SH EXAMPLE pen 80 www1:8000:10 www2:80:10 www3 Here three servers cooperate in a web server farm. Host www1 runs its web server on port 8000 and accepts a maximum of 10 simultaneous connections. Host www2 runs on port 80 and accepts 10 connections. Finally, www3 runs its web server on port 80 and allows an unlimited number of simultaneous connections. .SH DESCRIPTION .I Pen is a load balancer for tcp based protocols such as http or smtp. It allows several servers to appear as one to the outside and automatically detects servers that are down and distributes clients among the available servers. This gives high availability and scalable performance. The load balancing algorithm keeps track of clients and will try to send them back to the server they visited the last time. The client table has a number of slots (default 2048, settable through command-line arguments). When the table is full, the least recently used one will be thrown out to make room for the new one. This is superior to a simple round-robin algorithm, which sends a client that connects repeatedly to different servers. Doing so breaks applications that maintain state between connections in the server, including most modern web applications. When pen detects that a server is unavailable, it scans for another starting with the server after the most recently used one. That way we get load balancing and "fair" failover for free. Correctly configured, pen can ensure that a server farm is always available, even when individual servers are brought down for maintenance or reconfiguration. The final single point of failure, pen itself, can be eliminated by running pen on several servers, using vrrp to decide which is active. Sending pen a USR1 signal will make it print some useful statistics on stderr, even if debugging is disabled. If pen is running in the background (i.e. without the -f option), syslog is used rather than stderr. If the -w option is used, the statistics is saved in HTML format in the given file. Sending pen a HUP signal will make it close and reopen the logfile, if logging is enabled, and reload the configuration file. Rotate the log like this (assuming pen.log is the name of the logfile): mv pen.log pen.log.1 kill -HUP `cat ` where is the file containing pen's process id, as written by the -p option. Sending pen a TERM signal will make it exit cleanly, closing the log file and all open sockets. .SH OPTIONS .TP -C \fIport\fR Specifies a control port where the load balancer listens for commands. .TP -F \fIcfgfile\fR Names a configuration file with commands in penctl format (see penctl.1). The file is read after processing all command line arguments, and also after receiving a HUP signal. .TP -H Adds X-Forwarded-For header to http requests. .TP -P Use poll() for event notification. .TP -Q Use kqueue() for event notification (BSD). .TP -W Use weight for server selection. .TP -X Adds an exit command to the control interface. .TP -a Used in conjunction with -dd to get communication dumps in ascii rather than hexadecimal format. .TP -b \fIsec\fR Servers that do not respond are blacklisted, i.e. excluded from the server selection algorithm, for the specified number of seconds (default 30). .TP -T \fIsec\fR Clients are tracked for the specified number of seconds so they can be sent to the same server as the last time (default 0 = never expire clients). .TP -S \fIN\fR Max number of servers (default 16). .TP -c \fIN\fR Max number of clients (default 2048). .TP -d Debugging (repeat -d for more). The output goes to stderr if we are running in the foreground (see -f) and to syslog (facility user, priority debug) otherwise. .TP -e \fIhost:port\fR host:port specifies the emergency server to contact if all regular servers become unavailable. .TP -f Stay in foreground. .TP -h Use a hash on the client IP address for the initial server selection. This makes it more predictable where clients will be connected. .TP -j \fIdir\fR Run in a chroot environment. .TP -l \fIfile\fR Turn on logging. .TP -n Nonblocking. .TP -p \fIfile\fR Write the pid of the running daemon to \fIfile\fR. .TP -r Go straight into round-robin server selection without looking up which server a client used the last time. .TP -s Stubborn server selection: if the initial choice is unavailable, the client connection is closed without trying another server. .TP -t \fIsec\fR Connect timeout in seconds (default 5). .TP -u \fIuser\fR Run as a different user. .TP -x \fIN\fR Max number of simultaneous connections (default 256). .TP -w \fIfile\fR File for status reports in HTML format. .TP -o \fIoption\fR Use option in penctl format. .TP -E \fIcertfile\fR Use the given certificate in PEM format. .TP -K \fIkeyfile\fR Use the given key in PEM format (may be contained in cert). .TP -G \fIcacertfile\fR File containing the CA's certificate. .TP -A \fIcacertdir\fR Directory containing CA certificates in hashed format. .TP -Z Use SSL compatibility mode. .TP -R Require valid peer certificate. .TP -L \fIprotocol\fR ssl23, ssl3 or tls1 (default). .TP host:port The local address and port pen listens to. By default pen listens to all local addresses. .TP h1:p1:soft:hard:weight:prio The address, port and maximum number of simultaneous connections for a remote server. By default, the port is the same as the local port, and the soft limit on the number of connections is unlimited. The hard limit is used for clients which have accessed the server before. The weight and prio are used for the weight- and priority-based server selection algorithms. .SH LIMITATIONS Pen runs in a single process, and opens two sockets for each connection. Depending on kernel configuration, pen can run out of file descriptors. The SSL support is only available if pen was built with the --with-ssl option. .SH SEE ALSO penctl(1), dwatch(1), mergelogs(1), webresolve(1) .SH AUTHOR Copyright (C) 2001-2013 Ulric Eriksson, . .SH ACKNOWLEDGEMENTS In part inspired by balance by Thomas Obermair. pen-0.20.2/mkinstalldirs0000755000175000017500000000672212236501005012105 00000000000000#! /bin/sh # mkinstalldirs --- make directory hierarchy scriptversion=2009-04-28.21; # UTC # Original author: Noah Friedman # Created: 1993-05-16 # Public domain. # # This file is maintained in Automake, please report # bugs to or send patches to # . nl=' ' IFS=" "" $nl" errstatus=0 dirmode= usage="\ Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ... Create each directory DIR (with mode MODE, if specified), including all leading file name components. Report bugs to ." # process command line arguments while test $# -gt 0 ; do case $1 in -h | --help | --h*) # -h for help echo "$usage" exit $? ;; -m) # -m PERM arg shift test $# -eq 0 && { echo "$usage" 1>&2; exit 1; } dirmode=$1 shift ;; --version) echo "$0 $scriptversion" exit $? ;; --) # stop option processing shift break ;; -*) # unknown option echo "$usage" 1>&2 exit 1 ;; *) # first non-opt arg break ;; esac done for file do if test -d "$file"; then shift else break fi done case $# in 0) exit 0 ;; esac # Solaris 8's mkdir -p isn't thread-safe. If you mkdir -p a/b and # mkdir -p a/c at the same time, both will detect that a is missing, # one will create a, then the other will try to create a and die with # a "File exists" error. This is a problem when calling mkinstalldirs # from a parallel make. We use --version in the probe to restrict # ourselves to GNU mkdir, which is thread-safe. case $dirmode in '') if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then echo "mkdir -p -- $*" exec mkdir -p -- "$@" else # On NextStep and OpenStep, the 'mkdir' command does not # recognize any option. It will interpret all options as # directories to create, and then abort because '.' already # exists. test -d ./-p && rmdir ./-p test -d ./--version && rmdir ./--version fi ;; *) if mkdir -m "$dirmode" -p --version . >/dev/null 2>&1 && test ! -d ./--version; then echo "mkdir -m $dirmode -p -- $*" exec mkdir -m "$dirmode" -p -- "$@" else # Clean up after NextStep and OpenStep mkdir. for d in ./-m ./-p ./--version "./$dirmode"; do test -d $d && rmdir $d done fi ;; esac for file do case $file in /*) pathcomp=/ ;; *) pathcomp= ;; esac oIFS=$IFS IFS=/ set fnord $file shift IFS=$oIFS for d do test "x$d" = x && continue pathcomp=$pathcomp$d case $pathcomp in -*) pathcomp=./$pathcomp ;; esac if test ! -d "$pathcomp"; then echo "mkdir $pathcomp" mkdir "$pathcomp" || lasterr=$? if test ! -d "$pathcomp"; then errstatus=$lasterr else if test ! -z "$dirmode"; then echo "chmod $dirmode $pathcomp" lasterr= chmod "$dirmode" "$pathcomp" || lasterr=$? if test ! -z "$lasterr"; then errstatus=$lasterr fi fi fi fi pathcomp=$pathcomp/ done done exit $errstatus # Local Variables: # mode: shell-script # sh-indentation: 2 # 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: pen-0.20.2/mergelogs.10000644000175000017500000000420610332213025011335 00000000000000.TH MERGELOGS 1 LOCAL .SH NAME mergelogs .SH SYNOPSIS .B mergelogs -p penlog [-c] [-d] [-j jitter] [-t seconds] server1:logfile1 [server2:logfile2 ...] .SH EXAMPLES mergelogs -p pen.log 10.0.0.1:access_log.1 10.0.0.2:access_log.2 mergelogs -p pen.log 10.0.18.6:access_log-10.0.18.6 10.0.18.8:access_log-10.0.18.8 .SH DESCRIPTION When pen is used to load balance web servers, the web server log file lists all accesses as coming from the host running pen. This makes it more difficult to analyze the log file. To solve this, pen creates its own log file, which contains the real client address, the time of the access, the target server address and the first few bytes of the requests. Mergelogs reads pen's log file and the log files of all load balanced web servers, compares each entry and creates a combined log file that looks as if the web server cluster were a single physical server. Client addresses are replaced with the real client addresses. In the event that no matching client address can be found in the pen log, the server address is used instead. This should never happen, and is meant as a debugging tool. A large number of these indicates that the server system date needs to be set, or that the jitter value is too small. You probably don't want to use this program. Penlog is a much more elegant and functional solution. .SH OPTIONS .TP -c Do not cache pen log entries. The use of this option is not recommended, as it will make mergelogs search the entire pen log for every line in the web server logs. .TP -d Debugging (repeat for more). .TP -p \fIpenlog\fR Log file from pen. .TP -j \fIjitter\fR Jitter in seconds (default 600). This is the maximum variation in time stamps in the pen and web server log files. A smaller value will result in a smaller pen log cache and faster processing, at the risk of missed entries. .TP -t \fIseconds\fR The difference in seconds between the time on the pen server and UTC. For example, this is 7200 (two hours) in Finland. .TP server:logfile Web server address and name of log file. .SH AUTHOR Copyright (C) 2001-2003 Ulric Eriksson, . .SH SEE ALSO pen(1), webresolve(1), penlog(1), penlogd(1) pen-0.20.2/pen.spec0000644000175000017500000000400010332213025010715 00000000000000# DarContact: Ulric Eriksson Summary: A load balancer for "simple" tcp based protocols. Name: pen Version: 0.11.0 Release: 0 License: GPL Group: Applications/Internet URL: http://siag.nu/pen/ Packager: Dag Wieers Vendor: Dag Apt Repository, http://dag.wieers.com/apt/ Source: ftp://siag.nu/pub/pen/%{name}-%{version}.tar.gz BuildRoot: %{_tmppath}/root-%{name}-%{version} Prefix: %{_prefix} %description Pen is a load balancer for "simple" tcp based protocols such as http or smtp. It allows several servers to appear as one to the outside and automatically detects servers that are down and distributes clients among the available servers. This gives high availability and scalable performance. %prep %setup ### FIXME: Add a default pen.conf for Apache. (Please fix upstream) %{__cat} <%{name}.conf ScriptAlias /pen/ %{_localstatedir}/www/pen/ DirectoryIndex penctl.cgi Options ExecCGI order deny,allow deny from all allow from 127.0.0.1 EOF %build %configure %{__make} %{?_smp_mflags} %install %{__rm} -rf %{buildroot} %makeinstall %{__install} -d -m0755 %{buildroot}%{_localstatedir}/www/pen/ \ %{buildroot}%{_sysconfdir}/httpd/conf.d/ %{__install} -m0755 penctl.cgi %{buildroot}%{_localstatedir}/www/pen/ %{__install} -m0644 pen.conf %{buildroot}%{_sysconfdir}/httpd/conf.d/ %post if [ -f %{_sysconfdir}/httpd/conf/httpd.conf ]; then if ! grep -q "Include .*/pen.conf" %{_sysconfdir}/httpd/conf/httpd.conf; then echo -e "\n# Include %{_sysconfdir}/httpd/conf.d/pen.conf" >> %{_sysconfdir}/httpd/conf/httpd.conf # /sbin/service httpd restart fi fi %clean %{__rm} -rf %{buildroot} %files %defattr(-, root, root, 0755) %doc AUTHORS ChangeLog COPYING HOWTO NEWS README TODO %doc %{_mandir}/man?/* %config(noreplace) %{_sysconfdir}/httpd/conf.d/*.conf %{_bindir}/* %{_localstatedir}/www/pen/ %changelog * Tue Sep 23 2003 Dag Wieers - 0.11.0-0 - Initial package. (using DAR) pen-0.20.2/depcomp0000755000175000017500000004755611736361705010705 00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2011-12-04.11; # UTC # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010, # 2011 Free Software Foundation, Inc. # 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. 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 $? ;; esac if test -z "$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" # 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. 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AC_INIT([pen],[0.20.2]) AC_CONFIG_SRCDIR([pen.c]) AM_CONFIG_HEADER(config.h) AM_INIT_AUTOMAKE dnl Checks for programs. AC_PROG_CC AC_PROG_INSTALL AC_PROG_LN_S AC_ISC_POSIX dnl Checks for libraries. AC_CHECK_LIB(socket, main) AC_CHECK_LIB(nsl, main) dnl Next line is for Solaris AC_CHECK_LIB(resolv, inet_aton) dnl Checks for header files. AC_HEADER_DIRENT AC_HEADER_STDC AC_HEADER_MAJOR dnl Checks for typedefs, structures, and compiler characteristics. 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Proper Windows support: native Windows service without cygwin. Nagios monitoring plugin with performance data. Xymon monitoring plugin with performance data.