aprsdigi-2.4.4/0000777000076400007640000000000010020171230007062 5aprsdigi-2.4.4/README0000644000076400007640000000226310016741513007675 Linux aprsdigi and aprsmon. Copyright (c) 1996,1997,1998,1999,2001 E. Alan Crosswell Released under the GNU Public License. See the file COPYING for details. Alan Crosswell, N2YGK n2ygk@weca.org revised November 28, 2001 Where to find the latest releases: The official places where I put new versions are: http://www.cloud9.net/~alan/ham/aprs/ ftp://ftp.tapr.org/aprssig/linux/ Others may mirror this stuff elsewhere, but I only promise that the latest will be at the above two sites. If you are not a member of Tucson Amateur Packet Radio (TAPR), consider joining! See www.tapr.org See the aprsdigi.8 and aprsmon.1 man pages. Aprsdigi is an intelligent digipeater (see the APRS Protocol Reference, ISBN 0-9644707-6-4, at http://www.tapr.org). Aprsmon enables a rudimentary TNC monitor as expected by Steve Dimse's javAPRS applet. If you want to build the aprsmon without saving up stale packets in a shared memory segment, give the --disable-shm option to configure. However, you should probably use aprsd instead, since it is a more complete implementation. See the AX25-HOWTO or http://sourceforge.net/projects/aprsd/. See the file INSTALL for installation instructions. aprsdigi-2.4.4/AUTHORS0000644000076400007640000000003710016741513010062 Alan Crosswell, n2ygk@weca.org aprsdigi-2.4.4/COPYING0000644000076400007640000004310010016741514010044 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 675 Mass Ave, Cambridge, MA 02139, 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. 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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. 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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. 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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) 19yy 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., 675 Mass Ave, Cambridge, MA 02139, 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) 19yy 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. aprsdigi-2.4.4/ChangeLog0000644000076400007640000001021510016741514010564 * Changes in aprsdigi-2.4.4, April 2003: * Changes in aprsdigi-2.4.3, April 2003: - Add support for IP/UDP interface, including IPv4 and IPv6 unicast and IPv4 any-source multicast (until I learn how to do SSM and v6 multicast). - Add Unix fifo interface and two test programs, fiforead and fifowrite. Mostly useful for debugging. - "-p port:call...." for ax25 ports is deprecated. Use "-p ax25:port:..." - Add interfaces options to toggle TX-enable, RX-enable and don't retransmit on received interface (e.g. for pt-to-pt and IP interface). - Add budlist (permit/deny access lists). - parse_cooked_ax25() and gen_cooked_ax25() added to libax25ext. Supports parsing TNC2 and AEA formats. Generates TNC2 format. - Corrected destination SSID routing to always work, not just for mic-E packets (per APRS Spec 1.02 Ch. 3 p. 12) - Added 3rd-party tunneling/de-tunneling (-3) per APRS Spec 1.02 Ch 17. I don't understand it, but it's there now. I use transparent tunneling (-0)! - Really fix the fencepost error that I claimed I fixed in 2.4.2! * Changes in aprsdigi-2.4.2, June 2002: - Fix fencepost error in expansion of TRACEn-n that was causing a seg fault. * Changes in aprsdigi-2.4.1, December 2001: - Fix loop killing (-L) to actually drop looping packets and not other random packets! * Changes in aprsdigi-2.4.0, November 2001: - Apply patches from Hamish Moffatt to update to the latest libax25. - Change keep default to 28 seconds to match the documented typical value per p.11 of the APRS Protocol Spec 1.0. - Don't digipeat packets that my station originated and then got repeated back to me (e.g. beacon -d "APRS via WIDE WIDE" should not be digi'd). (Thanks for noticing this one Arte.) - Make other cosmetic changes to eliminate need to patch libax25. - Rename a couple of functions. - Built and tested under a 2.4 kernel. Renumber the version to reflect the kernel version it runs with. * Changes in aprsdigi-2.0, March 1999: General aprsmon and aprsdigi changes: - Fix incorrect order of Mic-E longitude calculation which resulted in, among other errors, a zero longitude displaying as 19060.00W. - Corrections and changes to Mic-E -> "MIM" translations as requested by Bob Bruninga, including support for Kenwood TH-D7. - Fix T#MIC telemetry - Strip TheNet X1J4 BTEXT prefix, making an X1J4 node's beacon look like a regular APRS beacon. - Rename the package from aprsmon to aprsdigi-2.0 since the dominant useful code in the package is now the digi. arpsmon should probably be replaced by WA4DSY's aprsd. - Changes for Linux kernel 2.2 (AF_PACKET instead of AF_INET). - Changes for GNU libc 2 (glibc, a/k/a libc6). - Use autoconf and automake. aprsdigi-specific changes: - Bring aprsdigi WIDE flooding implementation into alignment with current WIDEn-n definition. - Add real control of how to interconnect (gate) multiple interfaces: - Tie each of my callsigns/aliases to an interface: replace -rxa switches with -p port1:alias,alias... -p port2:alias... - routing between interfaces now based on next-hop callsign. - one-to-many relationship supported by giving the same alias to multiple interfaces. Each interface with the matching next-hop alias will transmit, with per-interface customizations (e.g. MYCALL substitution is based on the callsign of the interface). - Make tag/idinterval, reformatting of Mic-E and X1J4, etc. selectable per-interface (rather than global) options. - Implement TRACE: Note that TRACEn-n vs. plain TRACE do different things: TRACEn-n *inserts* calls into the digipath while decrementing ssid. e.g.: RELAY*,TRACE3-3 RELAY,N2YGK-7*,TRACE3-2 RELAY,N2YGK-7,WB2ZII*,TRACE3-1 RELAY,N2YGK-7,WB2ZII,N2MH-15*,TRACE3 RELAY,N2YGK-7,WB2ZII,N2MH-15,WA2YSM-14* "Plain Old" TRACE just does a one-for-one mycall substitution. - Kill looping packets (-L option): RELAY*,WIDE,WIDE,WIDE RELAY,N2YGK-7*,WIDE,WIDE RELAY,N2YGK-7,WIDE*,WIDE ^---- normally n2ygk-7 would respond to this, but, by finding one of mycall earlier in the path, I know to ignore it. aprsdigi-2.4.4/INSTALL0000644000076400007640000000216110016741514010044 N2YGK's aprsdigi 2.4.3 installation instructions ---------------------------------------------- Alan Crosswell, n2ygk@weca.org PREREQUISITES: ------------- 1. You must have a Linux 2.4.x kernel with AX.25 and "Packet socket" configured (CONFIG_AX25 and CONFIG_PACKET) along with the applicable low-level AX.25 drivers (CONFIG_MKISS, CONFIG_BAYCOM*, CONFIG_SOUNDMODEM*, etc.) This release of my software has been tested with Linux 2.4 and GNU libc 2 (glibc) on a Red Hat 8.0 distribution. See the AX25-HOWTO for instructions: http://www.linuxdoc.org/HOWTO/AX25-HOWTO.html 2. You need libax25.a and the corresponding include files. These are part of the libax25-0.0.7 (or later) package. You also will need ax25-tools and you might as well get ax25-apps too. The AX25-HOWTO tells how to get and install these as well. INSTALLING FROM SOURCES: ----------------------- First make sure you have libax25 installed. Then untar and build aprsdigi: gunzip -c aprsdigi-2.4.3.tar.gz | tar xfz - cd aprsdigi-2.4.3 ./configure make make install CONFIGURING ----------- See the man page, aprsdigi.8. aprsdigi-2.4.4/Makefile.am0000644000076400007640000000177510016741514011061 # automake Makefile.am for Laprs (linux APRS(tm)) package # APRS is a registered trademark of Bob Bruninga, WB4APR SUFFIXES = .fig .html .8 .pdf noinst_LIBRARIES = libaprs.a sbin_PROGRAMS = aprsmon aprsdigi noinst_PROGRAMS = mic_e_test testparse testmcast fiforead fifowrite aprsmon_SOURCES = aprsmon.c aprsshm.c aprsshm.h LDADD = libaprs.a aprsdigi_SOURCES = aprsdigi.c mic_e_test_SOURCES = mic_e_test.c testparse_SOURCES = testparse.c testmcast_SOURCES = testmcast.c fiforead_SOURCES = fiforead.c fifowrite_SOURCES = fifowrite.c libaprs_a_SOURCES = mic_e.c mic_e.h libax25ext.c libax25ext.h man_MANS = aprsdigi.8 aprsmon.8 fiforead.8 fifowrite.8 HTMLS = aprsdigi.html aprsmon.html fiforead.html fifowrite.html noinst_SCRIPTS = $(HTMLS) aprsdigi.spec missing depcomp mkinstalldirs DOCS = aprsdigi.lsm parse_cooked_ax25.pdf parse_cooked_ax25.fig EXTRA_DIST= $(MANS) $(SCRIPTS) $(DOCS) .8.html: $(MAN2HTML) $< >$@ .fig.pdf: fig2dev -L pdf $< $@ backup: tar cfz aprsmon.bak $(DISTFILES) RCS mcopy aprsmon.bak a: aprsdigi-2.4.4/Makefile.in0000644000076400007640000004440410016741514011066 # Makefile.in generated by automake 1.6.3 from Makefile.am. # @configure_input@ # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 # 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@ SHELL = @SHELL@ srcdir = @srcdir@ top_srcdir = @top_srcdir@ VPATH = @srcdir@ prefix = @prefix@ exec_prefix = @exec_prefix@ bindir = @bindir@ sbindir = @sbindir@ libexecdir = @libexecdir@ datadir = @datadir@ sysconfdir = @sysconfdir@ sharedstatedir = @sharedstatedir@ localstatedir = @localstatedir@ libdir = @libdir@ infodir = @infodir@ mandir = @mandir@ includedir = @includedir@ oldincludedir = /usr/include pkgdatadir = $(datadir)/@PACKAGE@ pkglibdir = $(libdir)/@PACKAGE@ pkgincludedir = $(includedir)/@PACKAGE@ top_builddir = . ACLOCAL = @ACLOCAL@ AUTOCONF = @AUTOCONF@ AUTOMAKE = @AUTOMAKE@ AUTOHEADER = @AUTOHEADER@ am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd INSTALL = @INSTALL@ INSTALL_PROGRAM = @INSTALL_PROGRAM@ INSTALL_DATA = @INSTALL_DATA@ install_sh_DATA = $(install_sh) -c -m 644 install_sh_PROGRAM = $(install_sh) -c install_sh_SCRIPT = $(install_sh) -c INSTALL_SCRIPT = @INSTALL_SCRIPT@ INSTALL_HEADER = $(INSTALL_DATA) transform = @program_transform_name@ NORMAL_INSTALL = : PRE_INSTALL = : POST_INSTALL = : NORMAL_UNINSTALL = : PRE_UNINSTALL = : POST_UNINSTALL = : EXEEXT = @EXEEXT@ OBJEXT = @OBJEXT@ PATH_SEPARATOR = @PATH_SEPARATOR@ AMTAR = @AMTAR@ AWK = @AWK@ CC = @CC@ DEPDIR = @DEPDIR@ INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ MAN2HTML = @MAN2HTML@ PACKAGE = @PACKAGE@ RANLIB = @RANLIB@ STRIP = @STRIP@ VERSION = @VERSION@ am__include = @am__include@ am__quote = @am__quote@ install_sh = @install_sh@ # automake Makefile.am for Laprs (linux APRS(tm)) package # APRS is a registered trademark of Bob Bruninga, WB4APR SUFFIXES = .fig .html .8 .pdf noinst_LIBRARIES = libaprs.a sbin_PROGRAMS = aprsmon aprsdigi noinst_PROGRAMS = mic_e_test testparse testmcast fiforead fifowrite aprsmon_SOURCES = aprsmon.c aprsshm.c aprsshm.h LDADD = libaprs.a aprsdigi_SOURCES = aprsdigi.c mic_e_test_SOURCES = mic_e_test.c testparse_SOURCES = testparse.c testmcast_SOURCES = testmcast.c fiforead_SOURCES = fiforead.c fifowrite_SOURCES = fifowrite.c libaprs_a_SOURCES = mic_e.c mic_e.h libax25ext.c libax25ext.h man_MANS = aprsdigi.8 aprsmon.8 fiforead.8 fifowrite.8 HTMLS = aprsdigi.html aprsmon.html fiforead.html fifowrite.html noinst_SCRIPTS = $(HTMLS) aprsdigi.spec missing depcomp mkinstalldirs DOCS = aprsdigi.lsm parse_cooked_ax25.pdf parse_cooked_ax25.fig EXTRA_DIST = $(MANS) $(SCRIPTS) $(DOCS) subdir = . 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March, 2004 Release 2.4.4 of N2YGK's advanced APRS digipeater is now available for free under the terms of the GNU Public License (GPL) at ftp://ftp.tapr.org/aprssig/linux/aprsdigi-2.4.4.tgz and http://aprsdigi.sourceforge.net. This release has the following new features: - Aprsdigi is now a sourceforge.net project. Please visit aprsdigi.sf.net and sign up to be a developer or join the users or developers mailing lists. - Short (-s) command line options replaced with long ones (--long). Short options are now deprecated and may disappear in a future release. - Ability to specify a list of ports that get sent a verbatim duplicate copy of all packets received on a given port. Useful for "reflecting" what's heard on an RF port to a local LAN for instance. This is different from APRS-IS (e.g. aprsd) since the data is sent with UDP (multicast or unicast). Use with caution (or not at all) on RF ports. Added in 2.4.3: - UDP/IP (v4 and v6) unicast and multicast (ASM) support. Useful for connecting aprsdigi's over the Internet, WLANs, etc. (Note: this is *not* TCP support as used by APRS-IS, aprsd, etc.) Both transparent and "3rd party" tunneling are supported. - Budlist to permit/deny digipeating of traffic for individuals or groups of AX.25 and IP sources. IP budlists are helpful when using IP multicast! - Interfaces may be set to transmit- or receive-only. - Interfaces may be set to disable retransmission of received packets on the same interface (one-armed routing). - Unix FIFO supported as an interface type. Mostly useful for debugging. - Bug fixed that caused aprsdigi to crash upon TRACEn-n callsign insertion when the digipeater list was full. Along with these features: - Digipeater callsign substitution (e.g. RELAY replaced w/N0CLU-12). - WIDE, WIDEn-n, TRACE, and TRACEn-n. - As many radio interfaces as you can plug into your Linux machine with flexible gatewaying between them. - Special handling for Mic-Encoder, Kenwood TH-D7, and TheNet X1J4, including SSID-based digipeating. - Suppression of duplicate and looping packets. - Works with Linux 2.4 kernel AX.25 network stack. This means any AX.25 interface supported by the kernel will work, not just a TNC2 clone. Examples include all the BAYCOM interfaces (BAYPAC, PICPAR, PICSER, etc.), soundcards, 8530 SCC cards, any serial port KISS TNC, etc. Aprsdigi is Copyright (c) 1996,1997,1999,2001,2002,2003,2004 Alan Crosswell, n2ygk@weca.org aprsdigi-2.4.4/TODO0000644000076400007640000000312110017650003007471 aprsdigi: - set up sf.net: - CVS import (done) - aprsdigi-users && aprsdigi-devel mailing lists - release files/tarball - aprsdigi.sf.net web page - document how to use aprsd UDP port support or whether it makes sense to do so vs. just running aprsd in parallel. - make aprs-is compatible (see aprsd/doc/q.html) or just use aprsd? - suppress loops/dupes per-interface??? Currently globally. - make log file list rx/tx port and timestamp? - add "tcp:" interface types (both initiator/client and responder/server). netcat ./nc -v -u -p 14439 -l | ./nc -v -l -p 14439 localhost - add file: and/or tty: intf type to support non-KISS-capable TNCs and broken KISS implentations like TH-D7A (this is getting gross). - support more than 8 digipeaters in cooked mode? - digipeat other than UI frames (digi_ned && requested for opentrac pid 99) - Combine unproto() and parsecalls(). - Figure out why I can't just use standard full_sockaddr instead of struct ax_calls. - add maxhops for TRACEn-n. (I don't remember what this means!) - assure 100% alignment with APRS Protocol Spec 1.0 - add a real config file instead of hokey command line switches. - add IPv6 multicast, IPv4 SSM? - Implement HOME: (or did this idea die out?) - Implement compressed and/or decompressed GPS strings and posits. - Look at my notes from DCC proceedings APRS papers. mic_e.c: - looked at Dale's changes but they *broke* parsing of D7, mic_e pkts??? - Add PIC-E support: /P>mon - Is this necessary anymore given aprsd? 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But avoid the broken or # incompatible versions: # SysV /etc/install, /usr/sbin/install # SunOS /usr/etc/install # IRIX /sbin/install # AIX /bin/install # AmigaOS /C/install, which installs bootblocks on floppy discs # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag # AFS /usr/afsws/bin/install, which mishandles nonexistent args # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" # ./install, which can be erroneously created by make from ./install.sh. echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5 echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6 if test -z "$INSTALL"; then if test "${ac_cv_path_install+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. # Account for people who put trailing slashes in PATH elements. case $as_dir/ in ./ | .// | /cC/* | \ /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ /usr/ucb/* ) ;; *) # OSF1 and SCO ODT 3.0 have their own names for install. # Don't use installbsd from OSF since it installs stuff as root # by default. for ac_prog in ginstall scoinst install; do for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then if test $ac_prog = install && grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then # AIX install. It has an incompatible calling convention. : elif test $ac_prog = install && grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then # program-specific install script used by HP pwplus--don't use. : else ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" break 3 fi fi done done ;; esac done fi if test "${ac_cv_path_install+set}" = set; then INSTALL=$ac_cv_path_install else # As a last resort, use the slow shell script. We don't cache a # path for INSTALL within a source directory, because that will # break other packages using the cache if that directory is # removed, or if the path is relative. INSTALL=$ac_install_sh fi fi echo "$as_me:$LINENO: result: $INSTALL" >&5 echo "${ECHO_T}$INSTALL" >&6 # Use test -z because SunOS4 sh mishandles braces in ${var-val}. # It thinks the first close brace ends the variable substitution. test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' echo "$as_me:$LINENO: checking whether build environment is sane" >&5 echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6 # Just in case sleep 1 echo timestamp > conftest.file # Do `set' in a subshell so we don't clobber the current shell's # arguments. Must try -L first in case configure is actually a # symlink; some systems play weird games with the mod time of symlinks # (eg FreeBSD returns the mod time of the symlink's containing # directory). if ( set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null` if test "$*" = "X"; then # -L didn't work. set X `ls -t $srcdir/configure conftest.file` fi rm -f conftest.file if test "$*" != "X $srcdir/configure conftest.file" \ && test "$*" != "X conftest.file $srcdir/configure"; then # If neither matched, then we have a broken ls. This can happen # if, for instance, CONFIG_SHELL is bash and it inherits a # broken ls alias from the environment. This has actually # happened. Such a system could not be considered "sane". { { echo "$as_me:$LINENO: error: ls -t appears to fail. Make sure there is not a broken alias in your environment" >&5 echo "$as_me: error: ls -t appears to fail. 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PACKAGE=aprsdigi VERSION=2.4.4 cat >>confdefs.h <<_ACEOF #define PACKAGE "$PACKAGE" _ACEOF cat >>confdefs.h <<_ACEOF #define VERSION "$VERSION" _ACEOF # Some tools Automake needs. ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"} AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"} AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"} AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"} MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"} AMTAR=${AMTAR-"${am_missing_run}tar"} install_sh=${install_sh-"$am_aux_dir/install-sh"} # Installed binaries are usually stripped using `strip' when the user # run `make install-strip'. However `strip' might not be the right # tool to use in cross-compilation environments, therefore Automake # will honor the `STRIP' environment variable to overrule this program. if test "$cross_compiling" != no; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. set dummy ${ac_tool_prefix}strip; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_STRIP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$STRIP"; then ac_cv_prog_STRIP="$STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_STRIP="${ac_tool_prefix}strip" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi STRIP=$ac_cv_prog_STRIP if test -n "$STRIP"; then echo "$as_me:$LINENO: result: $STRIP" >&5 echo "${ECHO_T}$STRIP" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_STRIP"; then ac_ct_STRIP=$STRIP # Extract the first word of "strip", so it can be a program name with args. set dummy strip; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_STRIP"; then ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_STRIP="strip" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":" fi fi ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP if test -n "$ac_ct_STRIP"; then echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5 echo "${ECHO_T}$ac_ct_STRIP" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi STRIP=$ac_ct_STRIP else STRIP="$ac_cv_prog_STRIP" fi fi INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s" # We need awk for the "check" target. The system "awk" is bad on # some platforms. ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. set dummy ${ac_tool_prefix}gcc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}gcc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "gcc", so it can be a program name with args. set dummy gcc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="gcc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi CC=$ac_ct_CC else CC="$ac_cv_prog_CC" fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. set dummy ${ac_tool_prefix}cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi CC=$ac_ct_CC else CC="$ac_cv_prog_CC" fi fi if test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else ac_prog_rejected=no as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift set dummy "$as_dir/$ac_word" ${1+"$@"} shift ac_cv_prog_CC="$@" fi fi fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then for ac_prog in cl do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="$ac_tool_prefix$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$CC" && break done fi if test -z "$CC"; then ac_ct_CC=$CC for ac_prog in cl do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$ac_ct_CC" && break done CC=$ac_ct_CC fi fi test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH" >&5 echo "$as_me: error: no acceptable C compiler found in \$PATH" >&2;} { (exit 1); exit 1; }; } # Provide some information about the compiler. echo "$as_me:$LINENO:" \ "checking for C compiler version" >&5 ac_compiler=`set X $ac_compile; echo $2` { (eval echo "$as_me:$LINENO: \"$ac_compiler --version &5\"") >&5 (eval $ac_compiler --version &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -v &5\"") >&5 (eval $ac_compiler -v &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -V &5\"") >&5 (eval $ac_compiler -V &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { ; return 0; } _ACEOF ac_clean_files_save=$ac_clean_files ac_clean_files="$ac_clean_files a.out a.exe" # Try to create an executable without -o first, disregard a.out. # It will help us diagnose broken compilers, and finding out an intuition # of exeext. echo "$as_me:$LINENO: checking for C compiler default output" >&5 echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6 ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5 (eval $ac_link_default) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then # Find the output, starting from the most likely. 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INSTALL=$ac_install_sh fi fi echo "$as_me:$LINENO: result: $INSTALL" >&5 echo "${ECHO_T}$INSTALL" >&6 # Use test -z because SunOS4 sh mishandles braces in ${var-val}. # It thinks the first close brace ends the variable substitution. test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' # Extract the first word of "man2html", so it can be a program name with args. set dummy man2html; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_path_MAN2HTML+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else case $MAN2HTML in [\\/]* | ?:[\\/]*) ac_cv_path_MAN2HTML="$MAN2HTML" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_path_MAN2HTML="$as_dir/$ac_word$ac_exec_ext" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done test -z "$ac_cv_path_MAN2HTML" && ac_cv_path_MAN2HTML=".:$PATH" ;; esac fi MAN2HTML=$ac_cv_path_MAN2HTML if test -n "$MAN2HTML"; then echo "$as_me:$LINENO: result: $MAN2HTML" >&5 echo "${ECHO_T}$MAN2HTML" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi { echo "$as_me:$LINENO: checking for N2YGK's -lax25 extensions:..." >&5 echo "$as_me: checking for N2YGK's -lax25 extensions:..." >&6;} echo "$as_me:$LINENO: checking for parse_raw_ax25 in -lax25" >&5 echo $ECHO_N "checking for parse_raw_ax25 in -lax25... $ECHO_C" >&6 if test "${ac_cv_lib_ax25_parse_raw_ax25+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lax25 $LIBS" cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char parse_raw_ax25 (); #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { parse_raw_ax25 (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_lib_ax25_parse_raw_ax25=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_lib_ax25_parse_raw_ax25=no fi rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi echo "$as_me:$LINENO: result: $ac_cv_lib_ax25_parse_raw_ax25" >&5 echo "${ECHO_T}$ac_cv_lib_ax25_parse_raw_ax25" >&6 if test $ac_cv_lib_ax25_parse_raw_ax25 = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_LIBAX25_EXTENSIONS 1 _ACEOF fi echo "$as_me:$LINENO: checking for ax25_config_load_ports in -lax25" >&5 echo $ECHO_N "checking for ax25_config_load_ports in -lax25... $ECHO_C" >&6 if test "${ac_cv_lib_ax25_ax25_config_load_ports+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lax25 $LIBS" cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char ax25_config_load_ports (); #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { ax25_config_load_ports (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_lib_ax25_ax25_config_load_ports=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_lib_ax25_ax25_config_load_ports=no fi rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi echo "$as_me:$LINENO: result: $ac_cv_lib_ax25_ax25_config_load_ports" >&5 echo "${ECHO_T}$ac_cv_lib_ax25_ax25_config_load_ports" >&6 if test $ac_cv_lib_ax25_ax25_config_load_ports = yes; then cat >>confdefs.h <<_ACEOF #define HAVE_LIBAX25 1 _ACEOF LIBS="-lax25 $LIBS" fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5 echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6 # On Suns, sometimes $CPP names a directory. if test -n "$CPP" && test -d "$CPP"; then CPP= fi if test -z "$CPP"; then if test "${ac_cv_prog_CPP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else # Double quotes because CPP needs to be expanded for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" do ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include Syntax error _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? egrep -v '^ *\+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then : else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 # Broken: fails on valid input. continue fi rm -f conftest.err conftest.$ac_ext # OK, works on sane cases. Now check whether non-existent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? egrep -v '^ *\+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then # Broken: success on invalid input. continue else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.err conftest.$ac_ext if $ac_preproc_ok; then break fi done ac_cv_prog_CPP=$CPP fi CPP=$ac_cv_prog_CPP else ac_cv_prog_CPP=$CPP fi echo "$as_me:$LINENO: result: $CPP" >&5 echo "${ECHO_T}$CPP" >&6 ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include Syntax error _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? egrep -v '^ *\+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then : else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 # Broken: fails on valid input. continue fi rm -f conftest.err conftest.$ac_ext # OK, works on sane cases. Now check whether non-existent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? egrep -v '^ *\+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then # Broken: success on invalid input. continue else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.err conftest.$ac_ext if $ac_preproc_ok; then : else { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check" >&5 echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check" >&2;} { (exit 1); exit 1; }; } fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu echo "$as_me:$LINENO: checking for ANSI C header files" >&5 echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6 if test "${ac_cv_header_stdc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include #include #include #include _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? egrep -v '^ *\+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then ac_cv_header_stdc=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_header_stdc=no fi rm -f conftest.err conftest.$ac_ext if test $ac_cv_header_stdc = yes; then # SunOS 4.x string.h does not declare mem*, contrary to ANSI. cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | egrep "memchr" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | egrep "free" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. if test "$cross_compiling" = yes; then : else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include #if ((' ' & 0x0FF) == 0x020) # define ISLOWER(c) ('a' <= (c) && (c) <= 'z') # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) #else # define ISLOWER(c) (('a' <= (c) && (c) <= 'i') \ || ('j' <= (c) && (c) <= 'r') \ || ('s' <= (c) && (c) <= 'z')) # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) #endif #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) int main () { int i; for (i = 0; i < 256; i++) if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2); exit (0); } _ACEOF rm -f conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='./conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then : else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ( exit $ac_status ) ac_cv_header_stdc=no fi rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi fi echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 echo "${ECHO_T}$ac_cv_header_stdc" >&6 if test $ac_cv_header_stdc = yes; then cat >>confdefs.h <<\_ACEOF #define STDC_HEADERS 1 _ACEOF fi echo "$as_me:$LINENO: checking for sys/wait.h that is POSIX.1 compatible" >&5 echo $ECHO_N "checking for sys/wait.h that is POSIX.1 compatible... $ECHO_C" >&6 if test "${ac_cv_header_sys_wait_h+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include #include #ifndef WEXITSTATUS # define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) #endif #ifndef WIFEXITED # define WIFEXITED(stat_val) (((stat_val) & 255) == 0) #endif #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { int s; wait (&s); s = WIFEXITED (s) ? WEXITSTATUS (s) : 1; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_header_sys_wait_h=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_header_sys_wait_h=no fi rm -f conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_header_sys_wait_h" >&5 echo "${ECHO_T}$ac_cv_header_sys_wait_h" >&6 if test $ac_cv_header_sys_wait_h = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_SYS_WAIT_H 1 _ACEOF fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then eval "$as_ac_Header=yes" else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 eval "$as_ac_Header=no" fi rm -f conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in fcntl.h limits.h sys/ioctl.h sys/time.h unistd.h ax25/axconfig.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` if eval "test \"\${$as_ac_Header+set}\" = set"; then echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 else # Is the header compilable? echo "$as_me:$LINENO: checking $ac_header usability" >&5 echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6 cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_header_compiler=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_header_compiler=no fi rm -f conftest.$ac_objext conftest.$ac_ext echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 echo "${ECHO_T}$ac_header_compiler" >&6 # Is the header present? echo "$as_me:$LINENO: checking $ac_header presence" >&5 echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6 cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include <$ac_header> _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? egrep -v '^ *\+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then ac_header_preproc=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_header_preproc=no fi rm -f conftest.err conftest.$ac_ext echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 echo "${ECHO_T}$ac_header_preproc" >&6 # So? What about this header? case $ac_header_compiler:$ac_header_preproc in yes:no ) { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5 echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};; no:yes ) { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5 echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5 echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};; esac echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else eval "$as_ac_Header=$ac_header_preproc" fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 fi if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done if test "$ac_cv_header_ax25_axconfig_h" = yes ; then CPPFLAGS="$CPPFLAGS -I/usr/include/ax25" fi echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5 echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6 if test "${ac_cv_prog_cc_stdc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_cv_prog_cc_stdc=no ac_save_CC=$CC cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include #include #include #include /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ struct buf { int x; }; FILE * (*rcsopen) (struct buf *, struct stat *, int); static char *e (p, i) char **p; int i; { return p[i]; } static char *f (char * (*g) (char **, int), char **p, ...) { char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s; } int test (int i, double x); struct s1 {int (*f) (int a);}; struct s2 {int (*f) (double a);}; int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); int argc; char **argv; #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; ; return 0; } _ACEOF # Don't try gcc -ansi; that turns off useful extensions and # breaks some systems' header files. # AIX -qlanglvl=ansi # Ultrix and OSF/1 -std1 # HP-UX 10.20 and later -Ae # HP-UX older versions -Aa -D_HPUX_SOURCE # SVR4 -Xc -D__EXTENSIONS__ for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" do CC="$ac_save_CC $ac_arg" rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_prog_cc_stdc=$ac_arg break else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 fi rm -f conftest.$ac_objext done rm -f conftest.$ac_ext conftest.$ac_objext CC=$ac_save_CC fi case "x$ac_cv_prog_cc_stdc" in x|xno) echo "$as_me:$LINENO: result: none needed" >&5 echo "${ECHO_T}none needed" >&6 ;; *) echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5 echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6 CC="$CC $ac_cv_prog_cc_stdc" ;; esac echo "$as_me:$LINENO: checking for an ANSI C-conforming const" >&5 echo $ECHO_N "checking for an ANSI C-conforming const... $ECHO_C" >&6 if test "${ac_cv_c_const+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { /* FIXME: Include the comments suggested by Paul. */ #ifndef __cplusplus /* Ultrix mips cc rejects this. */ typedef int charset[2]; const charset x; /* SunOS 4.1.1 cc rejects this. */ char const *const *ccp; char **p; /* NEC SVR4.0.2 mips cc rejects this. */ struct point {int x, y;}; static struct point const zero = {0,0}; /* AIX XL C 1.02.0.0 rejects this. It does not let you subtract one const X* pointer from another in an arm of an if-expression whose if-part is not a constant expression */ const char *g = "string"; ccp = &g + (g ? g-g : 0); /* HPUX 7.0 cc rejects these. */ ++ccp; p = (char**) ccp; ccp = (char const *const *) p; { /* SCO 3.2v4 cc rejects this. */ char *t; char const *s = 0 ? (char *) 0 : (char const *) 0; *t++ = 0; } { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */ int x[] = {25, 17}; const int *foo = &x[0]; ++foo; } { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */ typedef const int *iptr; iptr p = 0; ++p; } { /* AIX XL C 1.02.0.0 rejects this saying "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */ struct s { int j; const int *ap[3]; }; struct s *b; b->j = 5; } { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */ const int foo = 10; } #endif ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_c_const=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_c_const=no fi rm -f conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_c_const" >&5 echo "${ECHO_T}$ac_cv_c_const" >&6 if test $ac_cv_c_const = no; then cat >>confdefs.h <<\_ACEOF #define const _ACEOF fi echo "$as_me:$LINENO: checking for size_t" >&5 echo $ECHO_N "checking for size_t... $ECHO_C" >&6 if test "${ac_cv_type_size_t+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" $ac_includes_default #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { if ((size_t *) 0) return 0; if (sizeof (size_t)) return 0; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_type_size_t=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_type_size_t=no fi rm -f conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_size_t" >&5 echo "${ECHO_T}$ac_cv_type_size_t" >&6 if test $ac_cv_type_size_t = yes; then : else cat >>confdefs.h <<_ACEOF #define size_t unsigned _ACEOF fi echo "$as_me:$LINENO: checking whether struct tm is in sys/time.h or time.h" >&5 echo $ECHO_N "checking whether struct tm is in sys/time.h or time.h... $ECHO_C" >&6 if test "${ac_cv_struct_tm+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include #include #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { struct tm *tp; tp->tm_sec; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_struct_tm=time.h else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_struct_tm=sys/time.h fi rm -f conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_struct_tm" >&5 echo "${ECHO_T}$ac_cv_struct_tm" >&6 if test $ac_cv_struct_tm = sys/time.h; then cat >>confdefs.h <<\_ACEOF #define TM_IN_SYS_TIME 1 _ACEOF fi { echo "$as_me:$LINENO: checking for IPv6..." >&5 echo "$as_me: checking for IPv6..." >&6;} cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include #include #include #include #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { struct sockaddr_storage sa_union, *sa_unionp; struct sockaddr_in6 *sa; sa_unionp = &sa_union; sa = (struct sockaddr_in6 *)sa_unionp; sa->sin6_port = ntohs(5001); ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_accept_ipv6=yes else echo "$as_me: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_accept_ipv6=no fi rm -f conftest.$ac_objext conftest.$ac_ext if test "$ac_accept_ipv6" = yes ; then cat >>confdefs.h <<\_ACEOF #define IPV6 1 _ACEOF fi if test $ac_cv_c_compiler_gnu = yes; then echo "$as_me:$LINENO: checking whether $CC needs -traditional" >&5 echo $ECHO_N "checking whether $CC needs -traditional... $ECHO_C" >&6 if test "${ac_cv_prog_gcc_traditional+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_pattern="Autoconf.*'x'" cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include Autoconf TIOCGETP _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | egrep "$ac_pattern" >/dev/null 2>&1; then ac_cv_prog_gcc_traditional=yes else ac_cv_prog_gcc_traditional=no fi rm -f conftest* if test $ac_cv_prog_gcc_traditional = no; then cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include Autoconf TCGETA _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | egrep "$ac_pattern" >/dev/null 2>&1; then ac_cv_prog_gcc_traditional=yes fi rm -f conftest* fi fi echo "$as_me:$LINENO: result: $ac_cv_prog_gcc_traditional" >&5 echo "${ECHO_T}$ac_cv_prog_gcc_traditional" >&6 if test $ac_cv_prog_gcc_traditional = yes; then CC="$CC -traditional" fi fi echo "$as_me:$LINENO: checking return type of signal handlers" >&5 echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6 if test "${ac_cv_type_signal+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF #line $LINENO "configure" #include "confdefs.h" #include #include #ifdef signal # undef signal #endif #ifdef __cplusplus extern "C" void (*signal (int, void (*)(int)))(int); #else void (*signal ()) (); #endif #ifdef F77_DUMMY_MAIN # ifdef __cplusplus extern "C" # endif int F77_DUMMY_MAIN() { return 1; } #endif int main () { int i; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? 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Grab either from any GNU archive site." file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'` if test -z "$file"; then file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'` file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file` fi touch $file ;; tar) shift if test -n "$run"; then echo 1>&2 "ERROR: \`tar' requires --run" exit 1 fi # We have already tried tar in the generic part. # Look for gnutar/gtar before invocation to avoid ugly error # messages. if (gnutar --version > /dev/null 2>&1); then gnutar "$@" && exit 0 fi if (gtar --version > /dev/null 2>&1); then gtar "$@" && exit 0 fi firstarg="$1" if shift; then case "$firstarg" in *o*) firstarg=`echo "$firstarg" | sed s/o//` tar "$firstarg" "$@" && exit 0 ;; esac case "$firstarg" in *h*) firstarg=`echo "$firstarg" | sed s/h//` tar "$firstarg" "$@" && exit 0 ;; esac fi echo 1>&2 "\ WARNING: I can't seem to be able to run \`tar' with the given arguments. You may want to install GNU tar or Free paxutils, or check the command line arguments." exit 1 ;; *) echo 1>&2 "\ WARNING: \`$1' is needed, and you do not seem to have it handy on your system. You might have modified some files without having the proper tools for further handling them. Check the \`README' file, it often tells you about the needed prerequirements for installing this package. You may also peek at any GNU archive site, in case some other package would contain this missing \`$1' program." exit 1 ;; esac exit 0 aprsdigi-2.4.4/mkinstalldirs0000754000076400007640000000341110016741514011617 #! /bin/sh # mkinstalldirs --- make directory hierarchy # Author: Noah Friedman # Created: 1993-05-16 # Public domain errstatus=0 dirmode="" usage="\ Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..." # process command line arguments while test $# -gt 0 ; do case "${1}" in -h | --help | --h* ) # -h for help echo "${usage}" 1>&2; exit 0 ;; -m ) # -m PERM arg shift test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } dirmode="${1}" shift ;; -- ) shift; break ;; # stop option processing -* ) echo "${usage}" 1>&2; exit 1 ;; # unknown option * ) break ;; # first non-opt arg esac done for file do if test -d "$file"; then shift else break fi done case $# in 0) exit 0 ;; esac case $dirmode in '') if mkdir -p -- . 2>/dev/null; then echo "mkdir -p -- $*" exec mkdir -p -- "$@" fi ;; *) if mkdir -m "$dirmode" -p -- . 2>/dev/null; then echo "mkdir -m $dirmode -p -- $*" exec mkdir -m "$dirmode" -p -- "$@" fi ;; esac for file do set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'` shift pathcomp= for d do 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 $errstatus # Local Variables: # mode: shell-script # sh-indentation: 3 # End: # mkinstalldirs ends here aprsdigi-2.4.4/mic_e.c0000644000076400007640000001547710016741514010251 /* * mic_e: function to reformat APRS Mic Encoder compressed position report * into a conventional (non-binary) tracker report. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * (See the file "COPYING" that is included with this source distribution.) * * Copyright (c) 1997,1999 Alan Crosswell * Alan Crosswell, N2YGK * 144 Washburn Road * Briarcliff Manor, NY 10510, USA * n2ygk@weca.org */ #include #include #include #include #include #include "mic_e.h" static char *msgname[] = { "Off duty..", "Enroute...", "In Service", "Returning.", "Committed.", "Special...", "PRIORITY..", "EMERGENCY." }; static unsigned int hex2i(u_char,u_char); int fmt_mic_e(const u_char *t, /* tocall */ const u_char *i, /* info */ const int l, /* length of info */ u_char *buf1, /* output buffer */ int *l1, /* length of output buffer */ u_char *buf2, /* 2nd output buffer */ int *l2, /* length of 2nd output buffer */ time_t tick) /* received timestamp of the packet */ { u_int msg,sp,dc,se,spd,cse; char north, west; int lon1,lonDD,lonMM,lonHH; char *bp; struct tm *gmt; enum {none=0, BETA, REV1} rev = none; /* mic_e revision level */ int gps_valid = 0; char symtbl = '/', symbol = '$', etype = 'E'; int buf2_n = 0; *l1 = *l2 = 0; switch (i[0]) { /* possible valid MIC-E flags */ case 0x60: gps_valid = 1; rev = REV1; break; case 0x27: gps_valid = 0; rev = REV1; break; case 0x1c: gps_valid = 1; rev = BETA; break; case 0x1d: gps_valid = 0; rev = BETA; break; default: gps_valid = 0; rev = none; break; } if (l >= 7 && (rev != none)) { msg = ((t[0]&0x40)?0:4) + ((t[1]&0x40)?0:2) + ((t[2]&0x40)?0:1); north = t[3]&0x40?'N':'S'; west = t[5]&0x40?'W':'E'; lon1 = t[4]&0x40; lonDD = i[1] - 28; lonMM = i[2] - 28; lonHH = i[3] - 28; #ifdef DEBUG fprintf(stderr,"raw lon 0x%02x(%d) 0x%02x(%d) 0x%02x(%d) 0x%02x(%d)\n", i[1],i[1],i[2],i[2],i[3],i[3],i[4],i[4]); fprintf(stderr,"before: lonDD=%d, lonMM=%d, lonHH=%d lon1=0x%0x\n",lonDD,lonMM,lonHH,lon1); #endif if (rev >= REV1) { if (lon1) /* do this first? */ lonDD += 100; if (180 <= lonDD && lonDD <= 189) lonDD -= 80; if (190 <= lonDD && lonDD <= 199) lonDD -= 190; if (lonMM >= 60) lonMM -= 60; } #ifdef DEBUG fprintf(stderr,"after: lonDD=%d, lonMM=%d, lonHH=%d lon1=0x%0x\n",lonDD,lonMM,lonHH,lon1); #endif sp = i[4] - 28; dc = i[5] - 28; se = i[6] - 28; buf2_n = 6; /* keep track of where we are */ #ifdef DEBUG fprintf(stderr,"sp=%02x dc==%02x se=%02x\n",sp,dc,se); #endif spd = sp*10+dc/10; cse = (dc%10)*100+se; if (rev >= REV1) { if (spd >= 800) spd -= 800; if (cse >= 400) cse -= 400; } gmt = gmtime(&tick); #ifdef DEBUG fprintf(stderr,"symbol=0x%02x, symtbl=0x%02x\n",i[7],i[8]); #endif symtbl = (l >= 8 && rev >= REV1)? i[8] : '/'; /* rev1 bug workaround: sends null symbol/table bytes */ if (symtbl != '/' && symtbl != '\\' && !('0' <= symtbl && symtbl <= '9') && !('A' <= symtbl && symtbl <= 'J') && symtbl != '*' && symtbl != '!') symtbl = '/'; symbol = i[7]; if (!isprint(symbol)) symbol = '$'; buf2_n = (rev == BETA)?8:9; if (l >= 10) { buf2_n = (rev == BETA)?8:9; switch (i[buf2_n]) { case '>': /* Kenwood TH-D7: no telemetry */ etype = 'T'; buf2_n++; break; case 0x60: /* two-channel telemetry */ sprintf(buf2,"T#MIC%03d,%03d", hex2i(i[buf2_n+1],i[buf2_n+2]), hex2i(i[buf2_n+3],i[buf2_n+4])); buf2_n+=5; *l2 = strlen(buf2); break; case 0x27: /* five-channel telemetry */ sprintf(buf2,"T#MIC%03d,%03d,%03d,%03d,%03d", hex2i(i[buf2_n+1],i[buf2_n+2]), hex2i(i[buf2_n+3],i[buf2_n+4]), hex2i(i[buf2_n+5],i[buf2_n+6]), hex2i(i[buf2_n+7],i[buf2_n+8]), hex2i(i[buf2_n+9],i[buf2_n+10])); buf2_n+=11; *l2 = strlen(buf2); break; case 0x1d: /* five-channel telemetry */ sprintf(buf2,"T#MIC%03d,%03d,%03d,%03d,%03d", i[buf2_n+1],i[buf2_n+2],i[buf2_n+3],i[buf2_n+4],i[buf2_n+5]); buf2_n+=6; *l2 = strlen(buf2); break; default: break; /* no telemetry */ } } sprintf(buf1,"@%02d%02d%02dz%d%d%d%d.%d%d%c%c%03d%02d.%02d%c%c%03d/%03d/%c>mon/M%d/%s", gmt->tm_mday,gmt->tm_hour,gmt->tm_min, t[0]&0x0f,t[1]&0x0f,t[2]&0x0f,t[3]&0x0f,t[4]&0x0f,t[5]&0x0f, north,symtbl, lonDD,lonMM,lonHH, west, symbol, cse,spd, etype, msg,msgname[msg]); bp = &buf1[(*l1 = strlen(buf1))]; if (buf2_n < l) { /* additional comments/btext */ *bp++ = ' '; /* add a space */ (*l1)++; memcpy(bp,&i[buf2_n],l-buf2_n); *l1 += l-buf2_n; } } return ((*l1>0)+(*l2>0)); } /* * here's another APRS device that get's mistreated by some APRS * implementations: A TNC2 running TheNet X1J4. * * 1 2 * 1234567890123456789012 * TheNet X-1J4 (RELAY) */ static u_char x1j4prefix[] = "TheNet X-1J4"; #define MINX1J4LEN 14 /* min length w/TheNet X1J4 prefix */ #define MAXX1J4LEN 22 /* max length w/(alias) */ int fmt_x1j4(const u_char *t, /* tocall */ const u_char *i, /* info */ const int l, /* length of info */ u_char *buf1, /* output buffer */ int *l1, /* length of output buffer */ u_char *buf2, /* 2nd output buffer */ int *l2, /* length of 2nd output buffer */ time_t tick) /* received timestamp of the packet */ { const u_char *cp; *l1 = *l2 = 0; if (l < MINX1J4LEN || memcmp(i,x1j4prefix,sizeof(x1j4prefix)-1) != 0) return 0; /* it's a TheNet beacon: either has ()'s w/alias name or no ()'s and the btext starts after some white space! */ cp = memchr(&i[MINX1J4LEN],')',MAXX1J4LEN-MINX1J4LEN); if (cp == NULL) /* no parens (no alias call) */ cp = &i[MINX1J4LEN]; else cp++; /* skip over the ) */ while (cp <= &i[l-1] && *cp == ' ') cp++; /* skip blanks */ memcpy(buf1,cp,*l1=&i[l-1]-cp); return 1; } static unsigned int hex2i(u_char a,u_char b) { unsigned int r = 0; if (a >= '0' && a <= '9') { r = (a-'0') << 4; } else if (a >= 'A' && a <= 'F') { r = (a-'A'+10) << 4; } if (b >= '0' && b <= '9') { r += (b-'0'); } else if (b >= 'A' && b <= 'F') { r += (b-'A'+10); } return r; } aprsdigi-2.4.4/mic_e.h0000644000076400007640000000136310016741514010243 /* * mic_e.h: APRS Mic Encoder special case functions */ extern int fmt_mic_e(const u_char *t, /* tocall */ const u_char *i, /* info */ const int l, /* length of info */ u_char *buf1, /* output buffer */ int *l1, /* length of output buffer */ u_char *buf2, /* 2nd output buffer */ int *l2, /* length of 2nd output buffer */ time_t tick); /* received timestamp of the packet */ extern int fmt_x1j4(const u_char *t, /* tocall */ const u_char *i, /* info */ const int l, /* length of info */ u_char *buf1, /* output buffer */ int *l1, /* length of output buffer */ u_char *buf2, /* 2nd output buffer */ int *l2, /* length of 2nd output buffer */ time_t tick); /* received timestamp of the packet */ aprsdigi-2.4.4/libax25ext.c0000644000076400007640000002406510016741514011155 /* * libax25ext.c: Some added functions for libax25. Conditionally * compiled only if the installed libax25 has not integrated them. * which they haven't :-( * Copyright (c) 1999,2001,2002 E. Alan Crosswell, N2YGK */ #ifndef HAVE_LIBAX25_EXTENSIONS #include #include #include #include "libax25ext.h" #include #define ALEN 6 #define AXLEN 7 #define HDLCAEB 0x01 #define REPEATED 0x80 #define UI 0x03 /* unnumbered information (unproto) */ #define PID_NO_L3 0xF0 /* no level-3 */ /* * parse a received kiss data frame into ax_calls and update data pointer * and length next byte of frame. Returns -1 on invalid or non-UI frame, 0 * on valid frame, 1 on valid frame that still has a non-repeated digi. */ pk_val parse_raw_ax25(unsigned char **frame, int *len, struct ax_calls *calls) { if ((**frame & 0xf) != 0 || *len < 1+(2*AXLEN)) return PK_INVALID; /* not a valid kiss data frame */ ++*frame; --*len; bzero(calls,sizeof(*calls)); calls->ax_next_digi = 0; bcopy(*frame,calls->ax_to_call.ax25_call,AXLEN); *frame += AXLEN; *len -= AXLEN; bcopy(*frame,calls->ax_from_call.ax25_call,AXLEN); *frame += AXLEN; *len -= AXLEN; if (*len <= 0) return PK_VALID; if (!(calls->ax_from_call.ax25_call[ALEN] & HDLCAEB)) { /* digis listed */ for (calls->ax_n_digis = 0; calls->ax_n_digis < AX25_MAX_DIGIS && *len > 0; calls->ax_n_digis++, *len-=AXLEN,*frame+=AXLEN) { bcopy(*frame,calls->ax_digi_call[calls->ax_n_digis].ax25_call,AXLEN); if ((*frame)[ALEN]&REPEATED) calls->ax_next_digi = calls->ax_n_digis+1; if ((*frame)[ALEN]&HDLCAEB) { /* last digi */ *frame += AXLEN; *len -= AXLEN; calls->ax_n_digis++; break; } } } if (--*len >= 0) calls->ax_type = *(*frame)++; if (--*len >= 0) calls->ax_pid = *(*frame)++; if (!(calls->ax_type == UI && calls->ax_pid == PID_NO_L3)) return PK_INVALID; /* not a UI text frame */ if (calls->ax_n_digis == 0 || calls->ax_next_digi >= calls->ax_n_digis) /* all digis used up */ return PK_VALID; else return PK_VALDIGI; } /* * like parse_raw_ax25 but the frame header is in TNC-2 or AEA format * per APRS spec 1.01 p. 84 * TNC-2: source>dest,digi1,digi2*,...,digi8: * AEA: source*>digi1>digi2*>...,digi8>dest: * * See parse_cooked_ax25.(fig,pdf) for a state diagram for the parser (uggh). */ pk_val parse_cooked_ax25(unsigned char **frame, int *len, struct ax_calls *calls) { unsigned char *tok; int state,next_state = 0; while (next_state <= 99) { int switchtok, i; state = next_state; switch(state) { case 0: /* 0: Initial state */ bzero(calls,sizeof(*calls)); calls->ax_n_digis = 0; /* this is "n = 0" in the diagram */ if ((tok = strpbrk(*frame,"*>")) == NULL) /* source callsign */ return PK_INVALID; switchtok = *tok; *tok++ = '\0'; ax25_aton_entry(*frame,calls->ax_from_call.ax25_call); *len -= tok - *frame; *frame = tok; switch (switchtok) { case '*': calls->ax_from_call.ax25_call[ALEN] |= REPEATED; next_state = 1; break; case '>': next_state= 2; break; } break; case 1: if (*tok++ == '>') { /* 1->3: AEA */ next_state = 3; *len -= tok - *frame; *frame = tok; } else return PK_INVALID; break; case 11: /* 11->3: AEA */ if (*tok++ != '>') return PK_INVALID; *frame = tok; /* ? */ (*len)--; next_state = 3; break; case 3: /* 3->5: AEA */ if ((tok = strpbrk(*frame,">*:")) == NULL) /* callsign */ return PK_INVALID; switchtok = *tok; *tok++ = '\0'; switch (switchtok) { case '>': /* 5->3: digi */ case '*': if (calls->ax_n_digis >= AX25_MAX_DIGIS) return PK_INVALID; ax25_aton_entry(*frame,calls->ax_digi_call[calls->ax_n_digis].ax25_call); *len -= tok - *frame; *frame = tok; calls->ax_n_digis++; if (switchtok == '>') { next_state = 3; } else { /* set REPEATED flag for all digis up to and including this */ for (i = 0; i < calls->ax_n_digis; i++) calls->ax_digi_call[i].ax25_call[ALEN] |= REPEATED; calls->ax_next_digi = calls->ax_n_digis; next_state = 7; } break; case ':': ax25_aton_entry(*frame,calls->ax_to_call.ax25_call); *len -= tok - *frame; *frame = tok; next_state = 99; break; default: return PK_INVALID; } break; case 5: /* not really a state */ return PK_INVALID; break; case 7: if (*tok++ != '>') return PK_INVALID; (*len)--; *frame = tok; next_state = 3; break; case 2: /* 2->4: TNC2, unless it's an AEA:-) */ if ((tok = strpbrk(*frame,">*:,")) == NULL) /* callsign */ return PK_INVALID; switchtok = *tok; switch (switchtok) { case '>': /* 4->3: AEA */ *tok++ = '\0'; if (calls->ax_n_digis >= AX25_MAX_DIGIS) return PK_INVALID; ax25_aton_entry(*frame,calls->ax_digi_call[calls->ax_n_digis].ax25_call); *len -= tok - *frame; *frame = tok; calls->ax_n_digis++; next_state = 3; break; case '*': /* 4->3: AEA, heard direct */ *tok++ = '\0'; if (calls->ax_n_digis >= AX25_MAX_DIGIS) return PK_INVALID; ax25_aton_entry(*frame,calls->ax_digi_call[calls->ax_n_digis].ax25_call); *len -= tok - *frame; *frame = tok; calls->ax_n_digis++; /* set repeated AEB flags for all digis up to and including this */ for (i = 0; i < calls->ax_n_digis; i++) calls->ax_digi_call[i].ax25_call[ALEN] |= REPEATED; /* +HDLCAEB? */ calls->ax_next_digi = calls->ax_n_digis; next_state = 11; break; case ':': *tok++ = '\0'; ax25_aton_entry(*frame,calls->ax_to_call.ax25_call); *len -= tok - *frame; *frame = tok; next_state = 99; break; case ',': *tok++ = '\0'; ax25_aton_entry(*frame,calls->ax_to_call.ax25_call); *len -= tok - *frame; *frame = tok; next_state = 6; break; } break; case 4: /* not really a state */ return PK_INVALID; break; case 6: /* 6->8 */ if ((tok = strpbrk(*frame,":*,")) == NULL) /* callsign */ return PK_INVALID; switchtok = *tok; *tok++ = '\0'; if (calls->ax_n_digis >= AX25_MAX_DIGIS) return PK_INVALID; ax25_aton_entry(*frame,calls->ax_digi_call[calls->ax_n_digis].ax25_call); *len -= tok - *frame; *frame = tok; calls->ax_n_digis++; switch (switchtok) { case ':': /* 8->T */ next_state = 99; break; case '*': /* 8->10 */ /* set repeated AEB flags for all digis up to and including this */ for (i = 0; i < calls->ax_n_digis; i++) calls->ax_digi_call[i].ax25_call[ALEN] |= REPEATED; /* +HDLCAEB? */ calls->ax_next_digi = calls->ax_n_digis; next_state = 10; break; case ',': /* 8->6 */ next_state = 6; break; } break; case 8: return PK_INVALID; /* not really a state */ break; case 10: switch(*tok) { case ',': next_state = 6; break; case ':': next_state = 99; break; default: return PK_INVALID; } *tok++ = '\0'; (*len)--; *frame = tok; break; case 99: /* terminal */ calls->ax_type = UI; calls->ax_pid == PID_NO_L3; if (calls->ax_n_digis == 0) calls->ax_from_call.ax25_call[ALEN] |= HDLCAEB; else calls->ax_digi_call[calls->ax_n_digis-1].ax25_call[ALEN] |= HDLCAEB; if (calls->ax_n_digis == 0 || calls->ax_next_digi >= calls->ax_n_digis) /* all digis used up */ return PK_VALID; else return PK_VALDIGI; break; default: return PK_INVALID; } } /* NOTREACHED */ } /* reverse of parse_raw_ax25: generates a kiss frame */ int gen_raw_ax25(unsigned char **frame, int *len, struct ax_calls *calls) { int minsize = 1+AXLEN+AXLEN+(calls->ax_n_digis*AXLEN)+2; int i; if (*len < minsize) return -1; *len -= minsize; if (calls->ax_n_digis == 0) calls->ax_from_call.ax25_call[ALEN] |= HDLCAEB; else calls->ax_from_call.ax25_call[ALEN] &= ~HDLCAEB; *(*frame)++ = '\0'; /* KISS type 0 */ bcopy(calls->ax_to_call.ax25_call,*frame,AXLEN); *frame += AXLEN; bcopy(calls->ax_from_call.ax25_call,*frame,AXLEN); *frame += AXLEN; for (i = 0; i < calls->ax_n_digis; i++,*frame += AXLEN) { calls->ax_digi_call[i].ax25_call[ALEN] &= ~HDLCAEB; bcopy(calls->ax_digi_call[i].ax25_call,*frame,AXLEN); } if (i > 0) *(*frame-AXLEN+ALEN) |= HDLCAEB; *(*frame)++ = calls->ax_type; *(*frame)++ = calls->ax_pid; return 0; } /* Like gen_raw_ax25 but in "cooked" TNC-2 format per APRS spec 1.01 p. 83 */ /* source_call>dest_call,digi1,digi2*,...,digi8: */ int gen_cooked_ax25(unsigned char **frame, int *len, struct ax_calls *calls) { int minsize = AXLEN+3+1+AXLEN+3+1+(calls->ax_n_digis*(AXLEN+3+1))+2; int i,l; if (*len < minsize) return -1; strncpy(*frame,ax25_ntoa_pretty(&calls->ax_from_call),AXLEN+3); l = strlen(*frame); *frame += l; *(*frame)++ = '>'; *len -= (l+1); strncpy(*frame,ax25_ntoa_pretty(&calls->ax_to_call),AXLEN+3); l = strlen(*frame); *frame += l; *len -= l; for (i = 0; i < calls->ax_n_digis; i++) { *(*frame)++ = ','; (*len)--; strncpy(*frame,ax25_ntoa_pretty(&calls->ax_digi_call[i]),AXLEN+3); l = strlen(*frame); *frame += l; *len -= l; /* only the last repeated digi gets * */ if (calls->ax_n_digis && calls->ax_next_digi-1 == i) { *(*frame)++ = '*'; (*len)--; } } *(*frame)++ = ':'; (*len)--; return 0; } /* * ax25 -> ascii conversion, pretty version * * lifted from libax25/axutils.c and fixed so that SSID 0 comes out * as MYCALL instead of MYCALL-0, just like most people expect! * The libax25 developers didn't accept my patch submission so I have * to drag this code around forever. Oh well. */ char *ax25_ntoa_pretty(const ax25_address *a) { static char buf[11]; char c, *s; int n; for (n = 0, s = buf; n < 6; n++) { c = (a->ax25_call[n] >> 1) & 0x7F; if (c != ' ') *s++ = c; } if ((n = ((a->ax25_call[6] >> 1) & 0x0F))) { /* not SSID=0 */ *s++ = '-'; if (n > 9) { *s++ = '1'; n -= 10; } *s++ = n + '0'; } *s++ = '\0'; return buf; } #endif aprsdigi-2.4.4/libax25ext.h0000644000076400007640000000266110016741514011160 /* * libax25ext.h: Some added functions for libax25. Conditionally * compiled only if the installed libax25 has not integrated them. * Copyright (c) 1999 E. Alan Crosswell, N2YGK */ #ifndef HAVE_LIBAX25_EXTENSIONS struct ax_calls { ax25_address ax_to_call; ax25_address ax_from_call; int ax_n_digis; /* number of digis to follow */ ax25_address ax_digi_call[AX25_MAX_DIGIS]; int ax_next_digi; /* index of next digi (1st non-repeated) */ unsigned char ax_type; /* frame type */ unsigned char ax_pid; /* protocol ID */ }; /* * parse a received kiss data frame into ax_calls and update data pointer * and length next byte of frame. Returns -1 on invalid frame, 0 * on valid frame, 1 on valid frame that still has a non-repeated digi. */ typedef enum {PK_INVALID=-1,PK_VALID=0,PK_VALDIGI=1} pk_val; extern pk_val parse_raw_ax25(unsigned char **, int *, struct ax_calls *); /* parse a received cooked TNC-2 or AEA format data frame */ extern pk_val parse_cooked_ax25(unsigned char **, int *, struct ax_calls *); /* generate a raw kiss data frame header (converse of parse_raw_ax25) */ extern int gen_raw_ax25(unsigned char **, int *, struct ax_calls *); /* generate a cooked TNC-2 format data frame header (converse of parse_cooked_ax25) */ extern int gen_cooked_ax25(unsigned char **, int *, struct ax_calls *); /* pretty version of stand libax25's ax25_ntoa */ extern char *ax25_ntoa_pretty(const ax25_address *a); #endif aprsdigi-2.4.4/aprsdigi.c0000644000076400007640000024041710016741515010772 /* aprsdigi: APRS-style UI frame digipeater and node. * * APRS has some peculiar digipeating ideas, so let's test them here: * * 1. Several digipeater aliases such as RELAY, WIDE, GATE. * 2. WIDEn-n flooding algorithm. * 3. SSID-based shorthand for digi path. * * See Bob Bruninga's (WB4APR) README/MIC-E.TXT for a description of * methods 2 and 3. #1 is conventional TNC digipeating with MYAlias, etc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2 as * published by the Free Software Foundation. * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. * * (See the file "COPYING" that is included with this source distribution.) * * portions derived from ax25-utils/listen.c * * Copyright (c) 1996,1997,1999,2001,2002,2003 Alan Crosswell * Alan Crosswell, N2YGK * 144 Washburn Road * Briarcliff Manor, NY 10510, USA * n2ygk@weca.org * * TODO: * see ./TODO */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef AX25_MTU #define AX25_MTU 256 #endif #include #include "mic_e.h" #include "libax25ext.h" #ifndef PACKAGE #define PACKAGE "aprsdigi" #endif #ifndef VERSION #define VERSION "$Revision: 1.1.1.1 $"; #endif /* some defines that really belong in a header file! */ #define ALEN 6 /* index to where the SSID and flags go */ #define AXLEN 7 /* length of a callsign */ /* SSID mask and various flags that are stuffed into the SSID byte */ #define SSID 0x1E #define HDLCAEB 0x01 #define REPEATED 0x80 #define UI 0x03 /* unnumbered information (unproto) */ #define PID_NO_L3 0xF0 /* no level-3 (text) */ #define C 0x80 #define SSSID_SPARE 0x40 /* must be set if not used */ #define ESSID_SPARE 0x20 struct statistics { /* counters */ int rx; /* packets received */ int rx_ign; /* rx packets ignored */ int rx_dup; /* dupe packets killed */ int rx_loop; /* looping packets killed */ int rx_mic; /* mic_e packets received */ int rx_ssid; /* dest SSID packets received */ int tx; /* packets transmitted, sum of: */ int digi; /* regular digipeats */ int flood; /* flood-N digipeats */ int ssid; /* dest SSID digipeats */ int ids; /* id packets */ }; /* the per-interface information */ #define MAXALIASES 5 #define MAXINTF 10 struct budlist_entry { /* budlist entry */ struct budlist_entry *be_next; int be_permit; /* permit/deny */ struct sockaddr_storage be_addr, be_mask; int be_maskbits; }; struct budlist { /* a given budlist */ struct budlist *bl_next; int bl_list_no; /* list number */ struct budlist_entry *bl_ent_head, *bl_ent_last; }; static struct budlist *Bl_head = NULL, *Bl_last = NULL; struct dupelist_entry { /* dupelist entry */ struct dupelist_entry *de_next; char *de_dev; /* interface device name to dupe to */ }; struct dupelist { /* a given dupelist */ struct dupelist *dl_next; int dl_list_no; /* list number */ struct interface_list *dl_il; /* list of interfaces to dupe to */ struct dupelist_entry *dl_ent_head, *dl_ent_last; }; static struct dupelist *Dl_head = NULL, *Dl_last=NULL; static struct interface { char *port; /* axports port name */ char *dev; /* kernel device name */ char *devname; /* user-friendly device name */ char *tag; /* optional tag text */ int taglen; int idinterval; /* seconds between IDs; 0 for none. */ int i_flags; /* status flags */ enum { P_UDP=1, /* interface is UDP socket */ P_AX25=2, /* interface is AX25 socket */ P_UNIX=3, /* interface is a unix file */ } i_proto; ax25_address aliases[MAXALIASES]; /* intf call & aliases */ int n_aliases; int rsock,tsock; /* socket fds */ #ifdef IPV6 struct sockaddr_storage rsa,tsa,rsafrom; /* and their sockaddrs */ #else struct sockaddr rsa,tsa,rsafrom; /* and their sockaddrs */ #endif /*IPV6*/ int rsa_size,tsa_size; /* sendto() bug w/sizeof(sockaddr_storage)? */ time_t next_id; /* next time we ID */ u_char idbuf[AX25_MTU]; /* An ID packet for this intf */ int idlen; struct statistics stats; /* statistics */ struct budlist *bud; /* budlist */ struct dupelist *dupe; /* list of interfaces to dupe to */ } Intf[MAXINTF]; #define MYCALL(n) Intf[n].aliases[0] #define I_MYCALL(i) i->aliases[0] static int N_intf = 0; struct interface_list { /* a list of interfaces (duh) */ struct interface_list *next; struct interface *i; }; struct stuff { /* maybe I should learn C++... */ u_char *cp; /* pointer into the packet */ int len; /* length of it */ struct ax_calls in; /* the received packet's calls, flags, etc. */ struct ax_calls out; /* the transmitted packet's calls, etc. */ struct interface *i; /* the interface received on */ }; /* some global stuff */ /* General options: */ static int Verbose = 0; static int Testing = 0; static int Digi_SSID = 0; static int Kill_dupes = 0; /* kill dupes even in conventional mode */ static int Kill_loops = 0; /* kill loops */ static int Doing_dupes = 0; /* dupelist was set on some interface */ static char *Logfile = NULL; static ax25_address Aprscall; /* replace mic-e encoded to-call with this */ static ax25_address Trace_dummy; /* dummy call for tracen-n substitution */ static ax25_address Widecall; /* dummy call for WIDEn-n substitution */ static ax25_address Udpipcall; /* dummy call for UDPIP 3rd party */ static int Have_digipath = 0; #define DIGISIZE 7 /* one more than usual! */ static ax25_address Digipath[DIGISIZE]; /* for SSID-[1:7] w/o flooding */ static struct full_sockaddr_ax25 Path[4]; /* for SSID-[8:15] N S E W */ static char Dirs[5] = "NSEW"; /* per-interface default options: */ static char *Tag = NULL; /* tag onto end of rx'd posit */ static int Taglen = 0; static int Idinterval = (9*60)+30; /* default to 9:30 */ static int Keep = 28; /* seconds to remember for dupe test */ static int I_flags = 0; /* interface default flags */ #define I_NEED_ID 0x01 /* need to ID */ #define SUBST_MYCALL 0x02 /* replace digi alias w/mycall */ #define MICE_XLATE 0x04 /* translate mic-e to tracker format */ #define X1J4_XLATE 0x08 /* translate x1j4 to plain format */ #define I_COOKED 0x20 /* interface is cooked */ #define I_RX 0x40 /* interface is enabled to receive */ #define I_TX 0x80 /* interface is enabled to transmit */ #define I_TXSAME 0x0100 /* enable re-TX on received interface */ #define I_3RDP 0x0200 /* enable 3rd party tunneling */ /* * A table of recognized flooding alias prefixes. In current practice, * the only recognized flood aliases are WIDEn and TRACEn(where n is 0-7) * where the latter has truly odd behavior. The flavors of WIDE and TRACE * are: * 1. WIDE: A conventional alias, eligible for MYCALL substitution. * Roughly equivalent to WIDE0-0. * 2. WIDEn-n: Flooding algorithm. Decrement SSID and repeat the packet * without setting the DIGIPEATED flag until it reaches zero at which * point do set the DIGIPEATED flag and move on to the next callsign * in the digipeat list. Does not get MYCALL substituted (even WIDEn-0) * so the user can see that the packet came in via n (anonymous) WIDE * digis. * 3. TRACE: Like WIDE but MYCALL substitution is not required. * 4. TRACEn-n: Do the SSID substitution like WIDE, but also insert MYCALL * into the digi list: * RELAY*,TRACE3-3 * RELAY,N2YGK-7*,TRACE3-2 * RELAY,N2YGK-7,WB2ZII*,TRACE3-1 * RELAY,N2YGK-7,WB2ZII,N2MH-15*,TRACE3 * RELAY,N2YGK-7,WB2ZII,N2MH-15,WA2YSM-14* * (What happens when the digi list gets too long for the AX.25 protocol * appears not to have been considered in this design. I guess we'll * just insert as many as we can.) */ /* * These flags are shared by the calltab and floods tables and by * the floodtype of a specific received call. That is, while there is * only one WIDE calltab entry, a received callsign can be WIDE-n or * WIDEn-n. */ #define C_IS_NOFLOOD 0 /* not a flood */ #define C_IS_FLOOD 1 /* this callsign is a flood (WIDE) */ #define C_IS_FLOODN 2 /* this is an N-N type flood (WIDEn-n) */ #define C_IS_TRACE 4 /* this is a trace-type flood (TRACE*) */ struct flood { ax25_address call; /* the flooding callsign prefix */ int len; /* length */ int flags; } Floods[MAXALIASES]; static int N_floods = 0; #define FLOODCALL Floods[0].call #define FLOODLEN Floods[0].len /* forward declarations */ static int unproto(struct full_sockaddr_ax25 *, char *); static int parsecalls(ax25_address*, int, char *); static void print_it(FILE *,struct ax_calls *,unsigned char *,int len); static void add_text(u_char **,int *,u_char *,int,char *,int); static int dupe_packet(struct ax_calls *,u_char *,int); static int loop_packet(struct ax_calls *,u_char *,int); static int xmit(struct stuff *s, struct interface_list *list); static void set_id(void); static void rx_packet(struct interface *i, u_char *buffer, int len); static void fix_recvfrom(struct stuff *s); static int floodcmp(ax25_address *a, int len, ax25_address *b); static int floodtype(ax25_address *c, int i); static void sked_id(struct interface *iface); static void budlist_add(char *, int); static int budlist_permit(struct stuff *); static void budlist_print_all(FILE *f); static void budlist_print(FILE *f,struct budlist *); static void dupelist_add(char *); static void dupelist_print_all(FILE *f); static void dupelist_print(FILE *f,struct dupelist *); static void dupelist_init(void); static void printaddr(struct sockaddr_storage *s, char *buf, int buflen); static void setmask(int, u_char *); static int cmpmask(int, u_char *, u_char *, u_char *); static void die(char *); static void usage(void); static void usage_udp(void); static void usage_unix(void); static void usage_ax25(void); static void usage_budlist(void); static void check_config(); static void config_print(FILE *f); static void print_dupes(void); static struct interface_list *intf_of(ax25_address *callsign); static void to_3rdparty(struct ax_calls *calls); static void drop_unused_digis(struct ax_calls *calls); static void from_3rdparty(struct stuff *s, int npkts, /* dimension of the next two vectors */ u_char *pkt[], /* output buffers for source path header */ int pktl[]); /* output length of sph (AX25_MTU max) */ /* signal handlers */ static void cleanup(int),identify(int),identify_final(int), print_stats(int),reset_stats(int); static void do_opts(int argc, char **argv); static void do_ports(void); static void do_port_ax25(struct interface *); static void do_port_udp(struct interface *); static void do_port_unix(struct interface *); static void set_sig(void); static int rx_loop(void); int main(int argc, char **argv) { int r; bzero(Intf,sizeof(Intf)); do_opts(argc,argv); do_ports(); set_id(); set_sig(); check_config(); r = rx_loop(); exit(r); } /* Listen for received packets and farm out the work */ static int rx_loop() { unsigned char buffer[AX25_MTU]; int n,selfds = 0; struct interface *i; fd_set select_mask; /* set up the initial select mask */ FD_ZERO(&select_mask); for (n = 0, i = Intf; n < N_intf; n++, i++) { if (i->rsock >= 0 && (i->i_flags & I_RX)) { FD_SET(i->rsock, &select_mask); selfds = (i->rsock>selfds)?i->rsock:selfds; } } ++selfds; for (;;) { int len; fd_set rmask = select_mask; if (select(selfds,&rmask,NULL,NULL,NULL) < 0) { if (errno == EINTR) continue; perror("select"); return 1; } /* find which sockets have data */ for (n = 0, i = Intf; n < N_intf; n++, i++) { if (i->rsock >= 0 && FD_ISSET(i->rsock,&rmask)) { int size = sizeof(i->rsafrom); if ((len = recvfrom(i->rsock,buffer,sizeof(buffer),0,(struct sockaddr *)&i->rsafrom,&size)) < 0) { if (errno == EINTR) continue; perror(i->port); return 1; } rx_packet(i,buffer,len); /* process the received packet */ } } } /* end of for(;;) */ return 0; /* NOTREACHED */ } /* Parse a received packet, convert and digipeat if necessary. */ static void rx_dupeit(struct stuff *s); static int rx_nodigi(struct stuff *s,int r); static int rx_dupe(struct stuff *s); static int rx_to_me(struct stuff *s); static int rx_bud_deny(struct stuff *s); static int rx_from_me(struct stuff *s); static int rx_ssid(struct stuff *s); static int rx_flood(struct stuff *s); static int rx_digi(struct stuff *s); static void rx_packet(struct interface *i, /* which interface received on */ u_char *buffer, /* what was received */ int len) /* length received */ { int r; struct stuff s; bzero(&s,sizeof(s)); s.i = i; ++s.i->stats.rx; s.cp = buffer; s.len = len; /* parse the cooked or raw kiss frame */ if (i->i_flags&I_COOKED) r = parse_cooked_ax25(&s.cp,&s.len,&s.in); else r = parse_raw_ax25(&s.cp,&s.len,&s.in); fix_recvfrom(&s); /* workaround bug in AF_AX25 */ if (Verbose) { char buf[20]; time_t tick = time(0); strftime(buf,sizeof(buf),"%T",gmtime(&tick)); fprintf(stderr,"%s %s: RX: ",buf,s.i->port); print_it(stderr,&s.in,s.cp,s.len); } /* go through a bunch of choices until we eat the packet or die:-) */ if (Doing_dupes) rx_dupeit(&s); /* blindly dupe it */ if (rx_bud_deny(&s)) /* budlisted */ return; else if (rx_from_me(&s)) /* don't digi my own repeated beacons! */ return; else if (rx_ssid(&s)) /* dest SSID handling */ return; else if (rx_nodigi(&s,r)) /* Nothing to digi? */ return; else if (rx_dupe(&s)) /* Is it a killed dupe or loop? */ return; else if (rx_to_me(&s)) /* Addressed to me? */ return; else if (rx_flood(&s)) /* flood special handling */ return; else if (rx_digi(&s)) /* conventional digi */ return; /* How'd we get here? */ if (Testing) { fprintf(stderr,"%s: Not repeatable\n",s.i->port); } } /* XXX bug(?) in AF_AX25 for raw sockets puts the interface name in sax25_call instead of the sender's callsign: (gdb) p (struct sockaddr_ax25)i->rsafrom $3 = {sax25_family = 3, sax25_call = {ax25_call = "ax0\0\0\0"}, sax25_ndigis = 0} */ static void fix_recvfrom(struct stuff *s) { struct sockaddr_ax25 *sax25 = (struct sockaddr_ax25 *)&s->i->rsafrom; if (sax25->sax25_family == AF_AX25) { bcopy(&s->in.ax_from_call, sax25->sax25_call.ax25_call,sizeof(sax25->sax25_call.ax25_call)); } } static void rx_dupeit(struct stuff *s) { int n; if (s->i->dupe && s->i->dupe->dl_il) { if (Verbose) { fprintf(stderr,"%s: duping to dupelist %d\n",s->i->devname, s->i->dupe->dl_list_no); } s->out = s->in; if (xmit(s,s->i->dupe->dl_il) < 0) perror("xmit"); } } static int rx_nodigi(struct stuff *s,int r) { int result = 0; /* bail if invalid or not doing SSID & no unrepeated digis */ if (r == PK_INVALID || r == PK_VALID || (r != PK_VALDIGI && !Digi_SSID)) { ++s->i->stats.rx_ign; result = 1; } if (Verbose) { if (result) fprintf(stderr,"packet is %s. (r=%d)\n", (r == PK_INVALID)?"invalid":"not repeatable",r); else fprintf(stderr,"packet is repeatable. (r=%d)\n",r); } return result; } static int rx_dupe(struct stuff *s) { int result = 0; static char *lupedupe[] = {"dupe or loop","dupe","loop"}; /* If packet was last transmitted by me, then don't digipeat it! */ if (Kill_dupes && dupe_packet(&s->in,s->cp,s->len)) { ++s->i->stats.rx_dup; result = 1; } else if (Kill_loops && loop_packet(&s->in,s->cp,s->len)) { ++s->i->stats.rx_loop; result = 2; } if (Verbose) { fprintf(stderr,"packet is%sa %s\n",result?" ":" not ",lupedupe[result]); } return result; } /* * find interfaces belonging to a callsign or alias. Returns a pointer to * a list of interfaces or NULL if not found. */ static struct callsign_list { ax25_address *callsign; int flags; int floodlen; /* length of flood call */ struct interface_list *l; /* list of interfaces having this callsign */ struct interface_list *illast; struct callsign_list *next; } *calltab = NULL, *ctlast = NULL; static void calltab_init(void); static struct callsign_list * calltab_entry(ax25_address *callsign,int *flags) { struct callsign_list *c; int flagdummy; if (flags == NULL) flags = &flagdummy; /* dummy the flags if not needed */ *flags = 0; for (c = calltab; c; c = c->next) { if ((c->flags&C_IS_FLOOD && (*flags = floodcmp(c->callsign,c->floodlen,callsign))) || (ax25_cmp(c->callsign,callsign) == 0)) { *flags |= c->flags; /* add stuff floodcmp doesn't know about */ return c; } } return NULL; } static void calltab_init(void) { struct interface *i; int n,m; /* iterate over all interfaces' callsigns */ for (i = Intf, n = 0; n < N_intf; n++,i++) { for (m = 0; m < i->n_aliases; m++) { struct interface_list *new_il = (struct interface_list *)calloc(1,sizeof(struct interface_list)); struct callsign_list *c = (calltab)?calltab_entry(&i->aliases[m],0):NULL; if (!c) { /* first time seeing this call */ int f; c = (struct callsign_list *)calloc(1,sizeof(struct callsign_list)); c->callsign = &i->aliases[m]; /* see if this is a flood call */ for (f = 0; f < N_floods; f++) { if (floodcmp(&Floods[f].call,Floods[f].len,c->callsign)) { c->flags = Floods[f].flags; c->floodlen = Floods[f].len; break; } } /* add the new callsign_list to calltab */ if (ctlast) { ctlast->next = c; ctlast = c; } else { calltab = ctlast = c; /* very first entry */ } } new_il->i = i; /* initialize the interface list */ if (c->illast) { /* and link it in to the callsign's list */ c->illast->next = new_il; c->illast = new_il; } else { c->l = c->illast = new_il; } } } } static struct interface_list * intf_of(ax25_address *callsign) { struct callsign_list *c; if (c = calltab_entry(callsign,0)) return c->l; return NULL; } static int rx_to_me(struct stuff *s) { int result = 0; struct interface_list *l = intf_of(&s->in.ax_to_call); if (l) { result = 1; ++s->i->stats.rx_ign; } if (Verbose) { fprintf(stderr,"packet is%saddressed to me.\n",result?" ":" not "); } return result; } static int rx_bud_deny(struct stuff *s) { int permit = 0; permit = budlist_permit(s); if (Verbose) { fprintf(stderr,"packet is %s by budlist.\n",permit?"permitted":"denied"); } return !permit; /* true if denied */ } static int rx_from_me(struct stuff *s) { int n,result = 0; struct interface *iface; for (n = 0, iface = Intf; n < N_intf; n++, iface++) { if (ax25_cmp(&MYCALL(n),&s->in.ax_from_call) == 0) { result=1; ++s->i->stats.rx_ign; } } if (Verbose) { fprintf(stderr,"packet is%sfrom me.\n",result?" ":" not "); } return result; } /* * SSID path selection only applies if: * 1. SSID digipeating is enabled. * 2. To-call's SSID must be non zero: this is the route. * 3. Digipeater path must be empty. * Count up mic_e packets while we are here. */ static int rx_ssid(struct stuff *s) { int ssid, mic_e, result = 0; mic_e = (*(s->cp) == 0x60 || *(s->cp) == 0x27 || *(s->cp) == 0x1c || *(s->cp) == 0x1d); if (mic_e) ++s->i->stats.rx_mic; if (Verbose) { fprintf(stderr,"%s mic_e...\n",mic_e?"is":"is not"); } if (Digi_SSID && s->in.ax_n_digis == 0 && (ssid = (s->in.ax_to_call.ax25_call[ALEN]&SSID)>>1) && s->len > 0) { if (Verbose) { fprintf(stderr,"Got an SSID route for path %d.\n",ssid); } ++s->i->stats.rx_ssid; s->out.ax_from_call = s->in.ax_from_call; s->out.ax_to_call = s->in.ax_to_call; s->out.ax_to_call.ax25_call[ALEN]&=~SSID; /* zero the SSID */ s->out.ax_type = s->in.ax_type; s->out.ax_pid = s->in.ax_pid; if (ssid <= 7) { /* omnidirectional */ if (N_floods || ssid == 0) { /* in a flooding network? */ s->out.ax_n_digis = 1; s->out.ax_digi_call[0] = FLOODCALL; s->out.ax_digi_call[0].ax25_call[FLOODLEN] = (ssid+'0') << 1; s->out.ax_digi_call[0].ax25_call[ALEN] |= SSID&(ssid<<1); if (Verbose) { fprintf(stderr,"Flooding: setting path to %s\n", ax25_ntoa_pretty(&s->out.ax_digi_call[0])); } } else { /* not in a flooding network */ int startat,i; if (ssid < 4) { /* RTFM for why this is */ startat = 0; /* starting point in digipath */ s->out.ax_n_digis = ssid; /* number of digis from there. */ } else { startat = 3; s->out.ax_n_digis = ssid-3; } if (Verbose) { fprintf(stderr,"Non-flooding: converting SSID WIDE-%d path to DIGI[%d:%d]\n", ssid,startat,startat+s->out.ax_n_digis-1); } /* fill in the digipeater list */ for (i = 0; i < s->out.ax_n_digis; i++,startat++) { s->out.ax_digi_call[i] = Digipath[startat]; } } /* flooding/non-flooding network */ } else { /* SSID > 7 is directional */ int j; if (Verbose) { fprintf(stderr,"setting path to %c UNPROTO%s\n", Dirs[ssid&3],(ssid&4)?" + WIDE":""); } s->out.ax_n_digis = Path[ssid&3].fsa_ax25.sax25_ndigis; for (j = 0; j <= s->out.ax_n_digis; j++) s->out.ax_digi_call[j] = Path[ssid&3].fsa_digipeater[j]; if (ssid&4) { /* directional + wide call */ s->out.ax_digi_call[s->out.ax_n_digis++] = Widecall; } } ++s->i->stats.ssid; if (xmit(s,NULL) < 0) perror("xmit"); result = 1; } if (Verbose) { fprintf(stderr,"did%srequire destination SSID handling.\n", result?" ":" not "); } return result; } /* see if special WIDEn-n & TRACEn-n handling applies. */ static int rx_flood(struct stuff *s) { int i,wide,thisflags,result=0; struct callsign_list *c; /* FLOODn-n algorithm: next digi with non-zero ssid callsign */ c = calltab_entry(&s->in.ax_digi_call[s->in.ax_next_digi],&thisflags); if (c && thisflags&C_IS_FLOOD && (wide = (s->in.ax_digi_call[s->in.ax_next_digi].ax25_call[ALEN]&SSID)>>1)) { if (Verbose) { fprintf(stderr,"Got a flooding %s route.\n", ax25_ntoa_pretty(&s->in.ax_digi_call[s->in.ax_next_digi])); } /* flooding algorithm always kills dupes. If kill_dupes option was not selected, then do the dupe checking here */ if (!Kill_dupes && dupe_packet(&s->in,s->cp,s->len)) { if (Verbose) { fprintf(stderr,"flood packet is a dupe\n"); } return 1; } /* decrement the flood counter (SSID) */ s->out = s->in; /* copy the input header */ s->out.ax_digi_call[s->out.ax_next_digi].ax25_call[ALEN] &= ~SSID; s->out.ax_digi_call[s->out.ax_next_digi].ax25_call[ALEN] |= ((--wide) << 1)&SSID; /* TRACEn-n: insert dummy mycall in front: xmit will put the real one in */ if ((thisflags&(C_IS_FLOODN|C_IS_TRACE)) == (C_IS_FLOODN|C_IS_TRACE)) { int n; if (s->out.ax_n_digis >= AX25_MAX_DIGIS) { fprintf(stderr,"%s: TRACEn-n list overflow. Last digi dropped.\n", s->i->port); s->out.ax_n_digis--; } /* shift remaining digis right one slot to make room */ for (n = s->out.ax_n_digis; n >= s->out.ax_next_digi; n--) { s->out.ax_digi_call[n] = s->out.ax_digi_call[n-1]; } /* then stuff in a dummy "TRACE" and mark it repeated */ s->out.ax_digi_call[s->out.ax_next_digi] = Trace_dummy; s->out.ax_digi_call[s->out.ax_next_digi].ax25_call[ALEN] |= REPEATED; s->out.ax_n_digis++; } if (Verbose) { fprintf(stderr,"Rewriting it as %s:\n", ax25_ntoa_pretty(&s->out.ax_digi_call[s->out.ax_next_digi])); } ++s->i->stats.flood; if (xmit(s,NULL) < 0) perror("xmit"); return 1; } if (Verbose) { fprintf(stderr,"Did %s require special flooding handling.\n", result?" ":" not "); } return result; } /* see if conventional digipeat handling applies. */ static int rx_digi(struct stuff *s) { int j, result = 0; struct interface_list *l; /* conventional: see if the next digipeater matches one of my calls */ if (l = intf_of(&s->in.ax_digi_call[s->in.ax_next_digi])) { /* a packet for me to digipeat */ if (Verbose) { fprintf(stderr,"Got a conventional digipeat.\n"); } s->out = s->in; /* copy input list to output unmodifed */ s->out.ax_digi_call[s->out.ax_next_digi].ax25_call[ALEN] |= REPEATED; ++s->i->stats.digi; if (xmit(s,NULL) < 0) perror("xmit"); result = 1; } if (Verbose) { fprintf(stderr,"Did%srequire conventional digipeat handling.\n", result?" ":" not "); } return result; } static void add_text(op,oleft,text,len,tag,taglen) unsigned char **op; int *oleft; u_char *text; int len; char *tag; int taglen; { if ((*oleft -= len) > 0) { bcopy(text,*op,len); /* copy the text */ *op += len; } if (taglen && tag && (*oleft -= taglen) > 0) { bcopy(tag,*op,taglen); /* and tack on the tag */ *op += taglen; } } /* watch out for overflow when adding mycall and/or wide */ static int unproto(calls,str) /* parse a via path into a calls struct */ struct full_sockaddr_ax25 *calls; char *str; { char buf[200]; bzero(calls, sizeof(*calls)); sprintf(buf,"dummy via %s",str); return ax25_aton(buf,calls); } static int parsecalls(calls,ncalls,str) /* parse a via path into a calls struct */ ax25_address *calls; int ncalls; /* max number */ char *str; { char *cp; int i; bzero(calls,ncalls*sizeof(*calls)); cp = strtok(str," \t\n,"); for (i = 0; cp && i < ncalls; i++) { if (ax25_aton_entry(cp,calls[i].ax25_call) < 0) return -1; cp = strtok(NULL," \t\n,"); } return i; } static void print_it(FILE *f, struct ax_calls *calls, u_char *data, int len) { int j; char asc_from[12],asc_to[12]; if (f == NULL) return; strncpy(asc_to,ax25_ntoa_pretty(&calls->ax_to_call),sizeof(asc_to)); strncpy(asc_from,ax25_ntoa_pretty(&calls->ax_from_call),sizeof(asc_from)); fprintf(f,"%s>%s",asc_from,asc_to); for (j = 0; j < calls->ax_n_digis; j++) { fprintf(f,",%s%s",ax25_ntoa_pretty(&calls->ax_digi_call[j]), (calls->ax_digi_call[j].ax25_call[ALEN]&REPEATED && (j == calls->ax_next_digi-1))?"*":""); } fprintf(f,":%.*s\n",len,data); } /* * packet reformatter * depending on options flags on transmit interface, perform reformatting * of the payload. Current methods include mic_E expansion, X1J4 * stripping of the the "TheNet X1J4 (alias)" prefix. Future methods * to include GPS/APRS position compression, expansion, etc. */ static int reformat(struct stuff *s, /* "class data":-) */ struct interface *i, /* this iteration's transmit interface */ u_char ***ovec, /* returns ptr to array of u_char ptrs */ int **olen) /* returns ptr to array of lengths */ { int r; time_t now; static u_char mic1[AX25_MTU], mic2[AX25_MTU]; /* MTU is *not* max payload! */ static u_char pref1[AX25_MTU], pref2[AX25_MTU]; static u_char *vecp[2]; static int vecl[2]; time(&now); *ovec = vecp; /* returned ptrs */ *olen = vecl; vecp[0] = mic1; vecl[0] = 0; vecp[1] = mic2; vecl[1] = 0; /* does xmit intf want mic-E translation? */ if (i->i_flags&MICE_XLATE && fmt_mic_e(ax25_ntoa_pretty(&s->out.ax_to_call),s->cp,s->len, mic1,&vecl[0],mic2,&vecl[1],now)) { s->out.ax_to_call = Aprscall; /* replace compressed lat w/"APRS" */ } else if (i->i_flags&X1J4_XLATE && /* want x1j4 translation? */ fmt_x1j4(ax25_ntoa_pretty(&s->out.ax_to_call),s->cp,s->len, mic1,&vecl[0],mic2,&vecl[1],now)) { } else { /* no reformat; just pass thru */ vecp[0] = s->cp; vecl[0] = s->len; } return (vecl[0]>0)+(vecl[1]>0); } /* * xmit looks at the next digipeater call to see which interfaces the * packet has to go out. By giving several interfaces the same callsign * or alias, multi-way fanout and/or gatewaying can be performed. * * An overriding interface list passed in is used by rx_dupeit(). */ static int xmit(struct stuff *s, struct interface_list *dupelist) { struct callsign_list *c; struct interface_list *l; int r = 0, sent; int thisflags = 0; /* transmit the packet on the interface(s) of the next callsign */ if (!dupelist) { if ((c = calltab_entry(&s->out.ax_digi_call[s->out.ax_next_digi],&thisflags)) == NULL) { fprintf(stderr,"xmit: Assertion failed: call %s not found\n", ax25_ntoa_pretty(&s->out.ax_digi_call[s->out.ax_next_digi])); return -1; } } for(l = (dupelist)?dupelist:c->l; l; l = l->next) { /* loop over each tx interface */ u_char obuf[AX25_MTU]; u_char *op = obuf; int oleft = sizeof(obuf); int olen; int npkt,n; u_char **vecp; /* output vector */ int *vecl; /* and lengths */ if (!(l->i->i_flags & I_TX)) { if (Verbose) fprintf(stderr,"%s: interface will not xmit.\n",l->i->devname); continue; } if (!(l->i->i_flags & I_TXSAME) && l->i == s->i) { if (Verbose) fprintf(stderr,"%s: will not retransmit on same interface.\n",l->i->devname); continue; } /* do any required per-intf expansion/translation/compression of payload */ npkt = reformat(s,l->i,&vecp,&vecl); if (s->i != l->i && l->i->i_flags&I_3RDP) { if (Verbose) fprintf(stderr,"3rd party de-tunnel: source port: %s dest port: %s\n", s->i->port, l->i->port); from_3rdparty(s,npkt,vecp,vecl); } for (n = 0; n < npkt; n++) { struct ax_calls calls = s->out; /* * Adjust the next_digi pointer only if REPEATED was set. * Only substitute MYCALL if marked REPEATED and the callsign * flags permit it. Flags and their rules: * FLOOD FLOODN TRACE Rule * ----- ------ ----- ----------------------------------- * 0 X X only if SUBST_MYCALL substitute MYCALL * 1 0 X always substitute MYCALL (WIDE/TRACE->MYCALL) * 1 1 0 never substitute MYCALL (WIDEn-n) * 1 1 1 always substitute MYCALL (???->MYCALL) * rx_flood will have inserted tracecall in front of TRACEn-n. * but MYCALL subst happens here since it is iface-specific. */ if (!dupelist) { /* if dupeing, ignore this crap */ if (calls.ax_digi_call[calls.ax_next_digi].ax25_call[ALEN]&REPEATED) { if ((!(thisflags&C_IS_FLOOD) && l->i->i_flags&SUBST_MYCALL) || ((thisflags&C_IS_FLOOD) && !(thisflags&C_IS_FLOODN)) || ((thisflags&(C_IS_FLOOD|C_IS_FLOODN|C_IS_TRACE)) == (C_IS_FLOOD|C_IS_FLOODN|C_IS_TRACE))) { calls.ax_digi_call[calls.ax_next_digi] = I_MYCALL(l->i); calls.ax_digi_call[calls.ax_next_digi].ax25_call[ALEN] |= REPEATED; } ++calls.ax_next_digi; } } /* XXX - deal with detunneled 3rdparty (empty digi list) -- or is some default digi list supposed to be used? */ if (s->i != l->i && s->i->i_flags&I_3RDP) { if (Verbose) fprintf(stderr,"3rd party tunnel: source port: %s dest port: %s\n", s->i->port, l->i->port); to_3rdparty(&calls); } if (l->i->i_flags&I_COOKED) gen_cooked_ax25(&op,&oleft,&calls); /* generate cooked header */ else gen_raw_ax25(&op,&oleft,&calls); /* generate the raw kiss header */ add_text(&op,&oleft,vecp[n],vecl[n],l->i->tag,l->i->taglen); /* fill in the info field */ olen = sizeof(obuf) - oleft; if (Logfile) { /* XXX this gets duplicated crap for multiple intfs */ FILE *of; if (Logfile[0] == '-' && Logfile[1] == '\0') of = stdout; else of = fopen(Logfile,"a"); print_it(of,&calls,op-(vecl[n]+l->i->taglen),vecl[n]+l->i->taglen); if (of != stdout) fclose(of); } if (Verbose) { fprintf(stderr,"%s: TX: ",l->i->port); print_it(stderr,&calls,op-(vecl[n]+l->i->taglen),vecl[n]+l->i->taglen); } ++l->i->stats.tx; sked_id(l->i); if ((sent = sendto(l->i->tsock,obuf,olen,0,(struct sockaddr *)&l->i->tsa, l->i->tsa_size)) < 0) perror(l->i->port); else r += sent; } /* end for n */ } /* end for l */ return r; } /* * packet dupe checking * * Compare the to, from, and info. Ignore the digipeater path. * If the packet matches one already received within the 'keep' * interval then it is a dupe. Keep the list sorted in reverse * chronological order and throw out any stale packets. */ struct pkt { struct pkt *next,*prev; time_t t; /* when recevied */ ax25_address to; /* destination */ ax25_address fr; /* source */ int l; /* length of text */ u_char d[AX25_MTU]; /* the text */ }; static struct pkt *top; /* stacked in reverse chronological order */ static int dupe_packet(struct ax_calls *calls,u_char *cp,int len) { struct pkt *p, *matched = NULL, *old = NULL; time_t now = time(0); time_t stale = now - Keep; if (Verbose) { print_dupes(); } for (p = top; p; p = p->next) { if (p->t >= stale) { /* packet is still fresh */ if (p->l == len && bcmp(p->d,cp,len) == 0 && bcmp(&calls->ax_to_call,&p->to,sizeof(p->to)) == 0 && bcmp(&calls->ax_from_call,&p->fr,sizeof(p->fr)) == 0) { matched = p; break; } else continue; } else { /* all following packets are stale */ old = p; break; } } if (old) { /* trim list of stale pkts */ if (top == old) top = NULL; /* entire list is stale */ else { old->prev->next = NULL; } while (old) { p = old->next; free(old); old = p; } } if (matched) { /* move matched packet to head of list? */ #ifdef DUPE_REFRESH_STAMP /* * Should dupe-checking update the time stamp each time a dupe is * heard again or let it age out so that it can get digi'd * periodically? For example, if a station beacons once every 15 * seconds, then only the first packet received ever will be * digi'd if the "memory" is 28 sec. Good example of where this * could be a problem is a MIC-E beaconing an emergency. By not * refreshing the timestamp, the desired behavior of reducing channel * clutter is still achieved. */ matched->t = now; /* updated timestamp */ if (matched == top) /* already on top */ return 1; /* unlink matched packet from list */ if (matched->prev) matched->prev->next = matched->next; if (matched->next) matched->next->prev = matched->prev; matched->prev = matched->next = NULL; /* push matched packet on top of list */ matched->next = top; if (top) top->prev = matched; top = matched; #endif return 1; } else { /* not matched: push new packet on top */ if ((p = (struct pkt *)calloc(1,sizeof(struct pkt))) == NULL) { fprintf(stderr,"failed to calloc!\n"); return 0; } p->t = now; p->l = (len>AX25_MTU)?AX25_MTU:len; bcopy(cp,p->d,p->l); p->to = calls->ax_to_call; p->fr = calls->ax_from_call; /* push new packet on top of list */ p->next = top; if (top) top->prev = p; top = p; return 0; } } static void print_dupes(void) { struct pkt *p; for (p = top; p ; p = p->next) { fprintf(stderr,"dupe @ 0x%0x: prev->0x%0x next->0x%0x time %d len %d\n", p,p->prev,p->next,p->t,p->l); } } /* * is packet looping? * e.g. FOO,mycall,WIDE*,mycall,somecall.... * Only look for one of my already repeated real callsigns (e.g. MYCALL(n)). * * Search through the list of already-repeated digipeaters and compare * each to one of my interface callsigns (since these are the ones that * replace generic callsigns). */ static int loop_packet(struct ax_calls *calls,u_char *cp,int len) { int n, flags; int j; struct interface *iface; struct callsign_list *cl; for (n = 0; n < calls->ax_next_digi; n++) { if (calls->ax_digi_call[n].ax25_call[ALEN]&REPEATED) { for (j = 0, iface = Intf; j < N_intf; j++, iface++) { if (ax25_cmp(&MYCALL(j),&calls->ax_digi_call[n]) == 0) { if (Verbose) fprintf(stderr,"loop_packet: found my call %s at digi_call[%d]\n", ax25_ntoa_pretty(&calls->ax_digi_call[n]),n); return 1; } } } else return 0; /* last repeated call */ } return 0; } static void cleanup(sig) int sig; /* dont't really care what it was */ { if (alarm(0) > 0) /* an alarm was pending, so... */ sked_id(NULL); /* ID one last time */ identify_final(sig); print_stats(sig); /* dump final stats */ exit(0); /* and exit */ } static void print_stats(sig) int sig; { FILE *of = stderr; struct interface *i; int n; if (Logfile) { if (Logfile[0] == '-' && Logfile[1] == '\0') of = stdout; else of = fopen(Logfile,"a"); } if (of == NULL) return; for (i = Intf, n = 0; n < N_intf; n++,i++) { fprintf(of,"# %s: rx %d (ign %d dup %d loop %d mic %d ssid %d) tx %d (digi %d flood %d ssid %d ids %d)\n", i->port, i->stats.rx,i->stats.rx_ign,i->stats.rx_dup,i->stats.rx_loop, i->stats.rx_mic,i->stats.rx_ssid, i->stats.tx,i->stats.digi,i->stats.flood,i->stats.ssid, i->stats.ids); } if (of != stdout) fclose(of); if (sig >= 0) signal(sig,print_stats); } static void reset_stats(sig) int sig; { struct interface *i; int n; print_stats(-1); for (i = Intf, n = 0; n < N_intf; n++,i++) { bzero(&i->stats,sizeof(i->stats)); } signal(sig,reset_stats); } /* setup a bare minimum legal ID (don't QRM the world with a digi path!) */ static void set_id() { struct ax_calls id; char idinfo[AX25_MTU]; int i,n; struct interface *iface; for (n = 0, iface = Intf; n < N_intf; n++, iface++) { u_char *op = iface->idbuf; int oleft = sizeof(iface->idbuf); bzero(&id,sizeof(id)); ax25_aton_entry("ID",id.ax_to_call.ax25_call); id.ax_to_call.ax25_call[ALEN] |= C; /* it's a command */ id.ax_from_call = MYCALL(n); id.ax_type = UI; id.ax_pid = PID_NO_L3; id.ax_n_digis = 0; if (iface->i_flags&I_COOKED) gen_cooked_ax25(&op,&oleft,&id); /* generate the kiss header */ else gen_raw_ax25(&op,&oleft,&id); /* generate the kiss header */ *idinfo = '\0'; for (i = 0; i < iface->n_aliases; i++) { strcat(idinfo,ax25_ntoa_pretty(&iface->aliases[i])); strcat(idinfo,"/R "); } for (i = 0; i < N_floods; i++) { strcat(idinfo,ax25_ntoa_pretty(&Floods[i].call)); strcat(idinfo,"n-n/R "); } add_text(&op,&oleft,idinfo,strlen(idinfo),0,0); iface->idlen = sizeof(iface->idbuf) - oleft; } } static void xmit_id(struct interface *i) { if (Verbose) { fprintf(stderr,"%s: TX: ID\n",i->port); } if (sendto(i->tsock,i->idbuf,i->idlen, 0,(struct sockaddr *)&i->tsa,i->tsa_size) < 0) /* ship it off */ perror(i->devname); i->i_flags &= ~I_NEED_ID; i->next_id = 0; ++i->stats.ids; } /* * sched alarm for next id. Called with intf ptr if that interface * needs to schedule an ID, NULL during alarm sig handler. */ static struct interface *ID_next = NULL; static void sked_id(struct interface *iface) { struct interface *i; int n; time_t now = time(0); time_t min = now+24*60*60; time_t when; if (iface && !(iface->i_flags&I_NEED_ID) && iface->idinterval) { iface->next_id = now+iface->idinterval; iface->i_flags |= I_NEED_ID; } /* find minimum time among all interfaces 'til next needed ID. */ for (i = Intf, n = 0, ID_next = NULL; n < N_intf; n++,i++) { if (i->i_flags&I_NEED_ID && i->idinterval && i->next_id > 0) { if ((when = i->next_id - now) <= 0) /* catch any already due */ xmit_id(i); else if (i->next_id < min) { ID_next = i; /* new minimum */ min = ID_next->next_id; } } } if (ID_next && ID_next->next_id && ID_next->next_id > 0) { alarm(when); /* next alarm in this many secs */ if (Verbose) { fprintf(stderr,"next ID for %s in %d seconds\n",ID_next->port, when); } } } static void identify(int sig) /* wake up and ID! */ { if (ID_next && ID_next->i_flags&I_NEED_ID) { xmit_id(ID_next); ID_next = NULL; sked_id(NULL); /* schedule next ID */ signal(sig,identify); } } static void identify_final(int sig) /* wake up and ID! */ { struct interface *i; int n; for (i = Intf, n = 0; n < N_intf; n++,i++) { if (i->i_flags&I_NEED_ID && i->idinterval && i->next_id > 0) { xmit_id(i); } } } #include enum {NONE=no_argument,REQD=required_argument,OPT=optional_argument}; static struct option opts[] = { {"verbose",OPT,0,'v'}, {"testing",NONE,0,'T'}, {"interface",REQD,0,'p'}, {"port",REQD,0,'p'}, {"trace",REQD,0,'F'}, {"flood",REQD,0,'f'}, {"east",REQD,0,'e'}, {"west",REQD,0,'w'}, {"north",REQD,0,'n'}, {"south",REQD,0,'s'}, {"digipath",REQD,0,'d'}, {"tag",REQD,0,'t'}, {"keep",REQD,0,'k'}, {"logfile",REQD,0,'l'}, {"idinterval",REQD,0,'i'}, {"subst_mycall",NONE,0,'C'}, {"nosubst_mycall",NONE,0,'c'}, {"mice_xlate",NONE,0,'M'}, {"nomice_xlate",NONE,0,'m'}, {"x1j4_xlate",NONE,0,'X'}, {"nox1j4_xlate",NONE,0,'x'}, {"3rdparty",NONE,0,'3'}, {"no3rdparty",NONE,0,'0'}, {"kill_dupes",NONE,0,'D'}, {"kill_loops",NONE,0,'L'}, {"bud",REQD,0,'B'}, {"nobud",REQD,0,'b'}, {"version",NONE,0,'V'}, {"help",NONE,0,'?'}, {"opts",REQD,0,'o'}, /* ran out of letters */ #define O(x) ((int)(256+(int)x)) {"rx",NONE,0,O('R')}, {"norx",NONE,0,O('r')}, {"tx",NONE,0,O('T')}, {"notx",NONE,0,O('t')}, {"txsame",NONE,0,O('S')}, {"notxsame",NONE,0,O('s')}, {"dupe",REQD,0,O('d')}, {"duplicate",REQD,0,O('d')}, {0,0,0,0} }; static char *optstring = "CcMmXxF:f:n:s:e:w:t:k:l:i:d:p:DLVvT30o:B:b:"; static void do_opts(int argc, char **argv) { int s; int opt_index = 0; /* set interface defaults */ I_flags = I_TX|I_RX|I_TXSAME; while ((s = getopt_long(argc, argv, optstring, opts, &opt_index)) != -1) { int p = -1; /* used for NSEW hack, below */ int fflags = 0; /* use for fF hack */ switch (s) { case 'v': ++Verbose; break; case 'T': ++Testing; break; case 'p': /* -p port[:alias,alias,alias...] */ if (N_intf >= MAXINTF) { fprintf(stderr,"too many interfaces!\n"); exit(1); } { struct interface *i = &Intf[N_intf++]; int a_i = 1; /* default 0'th alias is MYCALL */ char *op = strchr(optarg,':'); /* fill in defaults */ i->i_flags = I_flags; i->tag = Tag; i->taglen = Taglen; i->idinterval = Idinterval; i->bud = Bl_last; i->dupe = Dl_last; if (strncasecmp(optarg,"udp:",4) == 0) { /* IP/UDP port */ i->i_flags |= I_COOKED; i->i_proto = P_UDP; i->i_flags &= ~I_TXSAME; /* prevent stupid loops? */ a_i = 0; /* get MYCALL here */ /* udp:foo.bar.net/aprs/ttl:call,alias... */ /* or udp:224.1.2.3/1234/ttl:call,alias... */ /* or udp:fe80::204:e2ff:fe3c:ca2a/1234/ttl:call,alias... */ if (!op || !*op) { /* missing operand */ usage_udp(); } i->port = ++op; /* parse host/service/ttl later on */ op = strrchr(op,':'); /* skip backwards to the callsigns */ } else if (strncasecmp(optarg,"ax25:",5) == 0) { /* new-style axlib */ i->i_proto = P_AX25; if (!op || !*op) { /* missing operand */ usage_ax25(); } i->port = ++op; op = strchr(op,':'); if (op) *op = '\0'; } else if (strncasecmp(optarg,"unix:",5) == 0) { /* Unix fifo */ i->i_flags |= I_COOKED; i->i_proto = P_UNIX; a_i = 0; /* get MYCALL here */ if (!op || !*op) { /* missing operand */ usage_unix(); } i->port = ++op; op = strrchr(op,':'); /* skip backwards to the callsigns */ } else { /* ax25lib port name (same as ax25:) */ fprintf(stderr,"Warning: deprecated usage. Use \"-p ax25:%s\"\n",optarg); i->i_proto = P_AX25; i->port = optarg; } if (op) { /* additional aliases... */ *op++ = '\0'; if ((i->n_aliases=parsecalls(&i->aliases[a_i],MAXALIASES-1,op)) < 1) { fprintf(stderr,"Don't understand port %s aliases %s\n",optarg,op); exit(1); } if (i->i_proto == P_UDP || i->i_proto == P_UNIX) i->n_aliases--; /* alias 0 is MYCALL */ } } #ifdef notdef /* -p is an implicit -B - XXX why? */ budlist_add("-",0); #endif break; case 'F': /* flooding trace alias */ fflags = C_IS_TRACE; case 'f': /* flooding wide alias */ fflags |= C_IS_FLOOD; if (N_floods >= MAXALIASES) { fprintf(stderr,"too many flooding aliases!\n"); exit(1); } if (ax25_aton_entry(optarg,Floods[N_floods].call.ax25_call) < 0) { fprintf(stderr,"Don't understand callsign %s\n",optarg); exit(1); } if ((Floods[N_floods].call.ax25_call[ALEN]&SSID) != 0) { fprintf(stderr,"-f %s: flooding callsign must have a zero SSID\n", optarg); exit(1); } Floods[N_floods].flags = fflags; Floods[N_floods++].len = strlen(optarg); break; case 'w': /* directional unproto path */ ++p; case 'e': ++p; case 's': ++p; case 'n': ++p; ++Digi_SSID; if (unproto(&Path[p],optarg) < 0) { fprintf(stderr,"Don't understand %c path %s\n",toupper(s),optarg); exit(1); } break; case 'd': /* DIGI-style(non-SSID) unproto path */ ++Have_digipath; if (parsecalls(Digipath,DIGISIZE,optarg)!=DIGISIZE) { fprintf(stderr,"Don't understand %c path %s\n",toupper(s),optarg); exit(1); } break; case 't': /* tag to tack on to end of all packets */ Tag = optarg; Taglen = strlen(optarg); if (*Tag == '-' && Taglen == 1) { Tag = NULL; Taglen = 0; } break; case 'k': if ((Keep = atoi(optarg)) <= 0) Keep = 28; /* default keep is 28 */ break; case 'l': Logfile = optarg; /* log digipeated packets */ break; case 'i': Idinterval = atoi(optarg); break; case 'C': I_flags |= SUBST_MYCALL; break; case 'c': I_flags &= ~SUBST_MYCALL; break; case 'M': I_flags |= MICE_XLATE; break; case 'm': I_flags &= ~MICE_XLATE; break; case 'X': I_flags |= X1J4_XLATE; break; case 'x': I_flags &= ~X1J4_XLATE; break; case '3': I_flags |= I_3RDP; /* enable 3rd party tunneling */ break; case '0': I_flags &= ~I_3RDP; /* disable 3rd party tunneling (transparent) */ break; case 'o': /* o for options cuz I'm out of letters! */ switch (*optarg) { case 'R': /* RX enable */ I_flags |= I_RX; break; case 'r': /* RX disable */ I_flags &= ~I_RX; break; case 'T': I_flags |= I_TX; /* TX enable */ break; case 't': I_flags &= ~I_TX; /* TX disable */ break; case 'S': I_flags |= I_TXSAME; /* re-TX on RX interface */ break; case 's': I_flags &= ~I_TXSAME; /* no re-TX on RX interface */ break; default: usage(); } break; case O('d'): /* dupe to interface w/no modification */ dupelist_add(optarg); break; case O('R'): I_flags |= I_RX; break; case O('r'): I_flags &= ~I_RX; break; case O('T'): I_flags |= I_TX; /* TX enable */ break; case O('t'): I_flags &= ~I_TX; /* TX disable */ break; case O('S'): I_flags |= I_TXSAME; /* re-TX on RX interface */ break; case O('s'): I_flags &= ~I_TXSAME; /* no re-TX on RX interface */ break; case 'D': Kill_dupes++; break; case 'L': Kill_loops++; break; case 'B': budlist_add(optarg,1); break; case 'b': budlist_add(optarg,0); break; case 'V': printf("aprsdigi: %s-%s\n",PACKAGE,VERSION); exit(0); case '?': usage(); } } /* sanity-check args */ if (N_intf <= 0) { fprintf(stderr,"aprsdigi: must specify at least one port with -p\n"); exit(1); } } static void die(char *s) { perror(s); exit(1); } static void usage() { fprintf(stderr,"Usage: aprsdigi [-CcDLMXv] [-n|s|e|w path] [-fF call] [-t tag] [-k secs] [-l logfile] [-i interval] [-o r|R|t|T|s|S] [-p port:alias1,alias2...] [-B budlist] [-b budlist] ...\n"); fprintf(stderr," general options:\n"); fprintf(stderr," -v | --verbose -- produce verbose debugging output\n"); fprintf(stderr," -T | --testing -- test mode: listen to my packets too\n"); fprintf(stderr," -D | --kill_dupes -- suppress Duplicate packets\n"); fprintf(stderr," -L | --kill_loops -- suppress Looping packets\n"); fprintf(stderr," -V | --version -- print program version and exit\n"); fprintf(stderr," -n|s|e|w -- set North|South|East|West SSID directional path\n"); fprintf(stderr," --north | --south | --east | --west\n"); fprintf(stderr," -f | --flood -- set Flooding callsign (usually WIDE)\n"); fprintf(stderr," -F | --trace -- set Flooding TRACE callsign (usually TRACE)\n"); fprintf(stderr," -k | --keep -- seconds of old dupes to remember\n"); fprintf(stderr," -l | --logfile -- log digipeated packets here\n"); fprintf(stderr," per-interface options (put *before* each -p as needed):\n"); fprintf(stderr," -C (-c) | --[no]subst_mycall -- do (not) perform Mycall substitution\n"); fprintf(stderr," -M (-m) | --[no]mice_xlate -- do (not) perform Mic-E translation\n"); fprintf(stderr," -X (-x) | --[no]x1j4_xlate -- do (not) perform X1J4 translation\n"); fprintf(stderr," -3 | --3rdparty -- perform 3rd party tunneling\n"); fprintf(stderr," -0 | --no3rdparty -- perform transparent tunneling (default)\n"); fprintf(stderr," -o r (R) | --[no]rx -- do (not) mark interface receive-only\n"); fprintf(stderr," -o t (T) | --[no]tx -- do (not) mark interface transmit-only\n"); fprintf(stderr," -o s (S) | --[no]txsame -- do (not) supress retransmission on RX intf.\n"); fprintf(stderr," -i | --idinterval -- seconds between ID transmissions\n"); fprintf(stderr," (Use \"-i 0\" to disable IDs)\n"); fprintf(stderr," -t | --tag -- tag text to add to received packets\n"); fprintf(stderr," (Use \"-t -\" to reset to empty)\n"); fprintf(stderr," -B | --bud call|addr -- accept traffic only from matching source.\n"); fprintf(stderr," -b | --nobud call|addr -- deny traffic from matching source.\n"); fprintf(stderr," --dupe interface -- copy traffic from this interface.\n"); fprintf(stderr,"\n"); fprintf(stderr," -p | --port | --interface ax25:port:a1,a2,... -- port name and optional list of aliases\n"); fprintf(stderr," port is from /etc/ax25/axports\n"); fprintf(stderr," (primary callsign is obtained from the port)\n"); fprintf(stderr," -p | --port | --interface udp:address/port/ttl:call,a1,a2... -- IP host,service,ttl,call and optional list of aliases\n"); fprintf(stderr," -p | --port | --interface unix:path:call,a1,a2... -- FIFO filename, call and optional list of aliases\n"); exit(1); } static void usage_udp() { fprintf(stderr,"aprsdigi: Use --int udp:host/service/ttl:callsign,a1,a2,...\n"); fprintf(stderr," example: --int udp:224.1.2.3/1234/127:N2YGK-2,RELAY,WIDE\n"); fprintf(stderr," --int udp:192.168.1.2/1234/16:N2YGK-2,RELAY,WIDE\n"); fprintf(stderr," --int udp:n0clu.ampr.net/1234/16:N2YGK-2,RELAY,WIDE\n"); fprintf(stderr," --int udp:2002:123:45::ab:cd/1234/16:N2YGK-2,RELAY,WIDE\n"); exit(1); } static void usage_ax25() { fprintf(stderr,"aprsdigi: Use --int ax25:port:a1,a2,...\n"); fprintf(stderr," example: --int ax25:1:N2YGK-7,RELAY,WIDE\n"); exit(1); } static void usage_unix() { fprintf(stderr,"aprsdigi: Use --int unix:path:a1,a2,...\n"); fprintf(stderr," example: --int unix:/tmp/fifo:N2YGK-7,RELAY,WIDE\n"); exit(1); } static void usage_budlist() { fprintf(stderr,"aprsdigi: Use --[no]bud ax25:callsign[-SSID]|ip:host|udp:addr[/mask].\n"); fprintf(stderr," \"--bud -\" resets the list to empty\n"); fprintf(stderr," Use callsign-SSID to match specific station.\n"); fprintf(stderr," Use callsign to match all SSIDs.\n"); fprintf(stderr," Use host to match a given IP host.\n"); fprintf(stderr," Use addr/mask to match a given IP range.\n"); fprintf(stderr,"examples: --bud ax25:n0clu-14 -- matches only n0clu-14.\n"); fprintf(stderr," --bud ax25:n0clu -- matches all n0clu's\n"); fprintf(stderr," --bud ip:n0clu.ampr.net -- matches one host.\n"); fprintf(stderr," --bud ip:192.168.5.3 -- matches one host.\n"); fprintf(stderr," --bud ip:192.168.5.3/32 -- matches one host.\n"); fprintf(stderr," --bud ip:192.168.5.0/25 -- matches subnet\n"); fprintf(stderr," --bud ip:fe80::201:3ff:fe9a:38c6 -- matches one host.\n"); fprintf(stderr," --bud ip:fe80::201:3ff:fe9a:38c6/128 -- matches one host.\n"); fprintf(stderr," --bud ip:2002:905::/32 -- matches prefix.\n"); exit(1); } static void usage_dupelist() { fprintf(stderr,"aprsdigi: Use --dupe ax25:interface|udp:addr|unix:file.\n"); fprintf(stderr," \"--dupe -\" resets the list to empty\n"); exit(1); } /* * do_ports: Initialize interfaces. */ static void do_ports() { struct interface *i; ax25_aton_entry("APRS",Aprscall.ax25_call); ax25_aton_entry("WIDE",Widecall.ax25_call); ax25_aton_entry("UDPIP",Udpipcall.ax25_call); ax25_aton_entry("trace",Trace_dummy.ax25_call); if (ax25_config_load_ports() == 0) fprintf(stderr, "aprsdigi: no AX.25 port data configured\n"); for (i = Intf; i < &Intf[N_intf]; i++) { ++i->n_aliases; /* count the zeroth element too! */ switch (i->i_proto) { case P_AX25: do_port_ax25(i); break; case P_UNIX: do_port_unix(i); break; case P_UDP: do_port_udp(i); break; default: fprintf(stderr,"Unknown proto %d\n",i->i_proto); exit(1); break; } } calltab_init(); dupelist_init(); } static void do_port_ax25(struct interface *i) { struct ifreq ifr; int proto = (Testing)?ETH_P_ALL:ETH_P_AX25; if ((i->dev = ax25_config_get_dev(i->port)) == NULL) { fprintf(stderr, "aprsdigi: invalid ax25 port name - %s\n", i->port); exit(1); } i->devname = strdup(i->port); i->rsa_size = i->tsa_size = sizeof(struct sockaddr_ax25); if (!(i->i_flags & I_TX)) { i->tsock = -1; } else { /* open transmit socket */ if ((i->tsock = socket(AF_PACKET, SOCK_PACKET, htons(proto))) == -1) { die(i->port); } strcpy(((struct sockaddr*)&i->tsa)->sa_data, i->dev); ((struct sockaddr *)&i->tsa)->sa_family = AF_AX25; } if (!(i->i_flags & I_RX)) { i->rsock = -1; } else { /* open receive socket */ if ((i->rsock = socket(AF_PACKET, SOCK_PACKET, htons(proto))) == -1) { die(i->port); } strcpy(((struct sockaddr *)&i->rsa)->sa_data, i->dev); ((struct sockaddr *)&i->rsa)->sa_family = AF_AX25; if (bind(i->rsock, (struct sockaddr *)&i->rsa, i->rsa_size) < 0) { die(i->devname); } } /* set mycall (zeroth alias) to the port's */ strcpy(ifr.ifr_name, i->dev); /* get this port's callsign */ if (ioctl(i->rsock, SIOCGIFHWADDR, &ifr) < 0) { die(i->devname); } if (ifr.ifr_hwaddr.sa_family != AF_AX25) { fprintf(stderr,"%s: not AX25\n",i->port); exit(1); } bcopy(ifr.ifr_hwaddr.sa_data,I_MYCALL(i).ax25_call,sizeof(I_MYCALL(i).ax25_call)); I_MYCALL(i).ax25_call[ALEN] |= ESSID_SPARE|SSSID_SPARE; } static void do_port_udp(struct interface *i) { struct hostent *hp; struct servent *sp; char *name, *service, *ttl; const int one=1; int ttlval; struct addrinfo *ai, hints = {0, PF_UNSPEC, SOCK_DGRAM, 0}; /* hostname/service(port)/ttl */ i->dev = i->port; name = i->port; service = strchr(name,'/'); if (!service || *service != '/') usage_udp(); // *service++ = '\0'; ttl = strchr(&service[1],'/'); if (!ttl || *ttl != '/') usage_udp(); *ttl++ = '\0'; i->devname = strdup(name); *service++ = '\0'; if ((ttlval = atoi(ttl)) <= 0) usage_udp(); if (Verbose) fprintf(stderr,"opening UDP socket on %s/%s/%d\n", name, service, ttlval); if (getaddrinfo(name,service,&hints,&ai) < 0) die(name); if (Verbose) fprintf(stderr,"UDP address info: family %d type %d proto %d next 0x%0x\n", ai->ai_family,ai->ai_socktype,ai->ai_protocol,ai->ai_next); if (ai->ai_socktype != SOCK_DGRAM) { die("getaddrinfo returned non SOCK_DGRAM!\n"); } if (!(i->i_flags & I_TX)) { i->tsock = -1; } else { if ((i->tsock = socket(ai->ai_family, SOCK_DGRAM, 0)) == -1) die(name); if (setsockopt(i->tsock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0) die(i->port); if (ai->ai_family == AF_INET) { /* IPv4 */ i->tsa_size = sizeof(struct sockaddr); if (IN_MULTICAST(ntohl(((struct sockaddr_in*)ai->ai_addr)->sin_addr.s_addr))) { if (setsockopt(i->tsock, SOL_IP, IP_MULTICAST_TTL, &ttlval, sizeof(ttlval)) < 0) die(i->port); } else { if (setsockopt(i->tsock, SOL_IP, IP_TTL, &ttlval, sizeof(ttlval)) < 0) die(i->port); } #ifdef IPV6 } else if (ai->ai_family == AF_INET6) { /* IPv6 */ i->tsa_size = sizeof(struct sockaddr_storage); /* XXX ??? */ #endif /* IPV6 */ } else { fprintf(stderr,"%s: unsupported protocol family\n",i->port); exit(1); } bzero(&i->tsa,sizeof(i->tsa)); bcopy((struct sockaddr*)ai->ai_addr,&i->tsa,sizeof(i->tsa)); /* fill sockaddr w/sockaddr_in */ if (connect(i->tsock, (struct sockaddr *)&i->tsa, i->tsa_size) < 0) { die(i->devname); } } /* now the receive socket */ if (!(i->i_flags & I_RX)) { i->rsock = -1; } else { if ((i->rsock = socket(ai->ai_family, SOCK_DGRAM, 0)) == -1) { die(i->port); } if (setsockopt(i->rsock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0) die(i->port); if (ai->ai_family == AF_INET && !IN_MULTICAST(ntohl(((struct sockaddr_in*)ai->ai_addr)->sin_addr.s_addr))) { ((struct sockaddr_in *)ai->ai_addr)->sin_addr.s_addr = INADDR_ANY; /* not mcast so wildcard listen */ i->rsa_size = sizeof(struct sockaddr); #ifdef IPV6 } else if (ai->ai_family == AF_INET6) { /* IPv6 */ /* XXX ??? */ #endif /* IPV6 */ } i->rsa_size = sizeof(struct sockaddr_storage); bzero(&i->rsa,sizeof(i->rsa)); bcopy((struct sockaddr*)ai->ai_addr,&i->rsa,sizeof(i->rsa)); if (bind(i->rsock, (struct sockaddr *)&i->rsa, i->rsa_size) < 0) { die(i->devname); } /* if the UDP socket is a multicast group, then do IGMP join for rsock */ if (ai->ai_family == AF_INET && IN_MULTICAST(ntohl(((struct sockaddr_in*)ai->ai_addr)->sin_addr.s_addr))) { struct ip_mreq mreq; mreq.imr_multiaddr = ((struct sockaddr_in*)ai->ai_addr)->sin_addr; mreq.imr_interface.s_addr = INADDR_ANY; if (setsockopt(i->rsock, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0) die(i->port); #ifdef IPV6 } else if (ai->ai_family == AF_INET6) { /* IPv6 */ /* XXX ??? */ #endif /* IPV6 */ } } } static void do_port_unix(struct interface *i) { const int one=1; struct sockaddr_un *sun; char name[sizeof(sun->sun_path)]; i->dev = i->port; i->devname = strdup(i->dev); strncpy(name,i->dev,sizeof(name)); i->rsa_size = i->tsa_size = sizeof(struct sockaddr_un); /* the receive socket */ if (!(i->i_flags & I_RX)) { i->rsock = -1; } else { if (Verbose) fprintf(stderr,"opening RX FIFO socket on %s\n", name); if ((i->rsock = socket(AF_UNIX, SOCK_DGRAM, 0)) == -1) { die(name); } bzero(&i->rsa,sizeof(i->rsa)); sun = (struct sockaddr_un *)&i->rsa; sun->sun_family = AF_UNIX; strncpy(sun->sun_path,name,sizeof(sun->sun_path)); /* create the fifo if it doesn't already exist */ if (bind(i->rsock, (struct sockaddr *)&i->rsa, i->rsa_size) < 0 && errno != EADDRINUSE) { die(name); } } /* the transmit socket */ if (!(i->i_flags & I_TX)) { i->tsock = -1; } else { if (Verbose) fprintf(stderr,"opening TX FIFO socket on %s\n", name); if ((i->tsock = socket(AF_UNIX, SOCK_DGRAM, 0)) == -1) { die(name); } bzero(&i->tsa,sizeof(i->tsa)); sun = (struct sockaddr_un *)&i->tsa; sun->sun_family = AF_UNIX; strncpy(sun->sun_path,name,sizeof(sun->sun_path)); if (setsockopt(i->tsock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0) die(i->port); } } static void set_sig() { signal(SIGHUP,cleanup); signal(SIGINT,cleanup); signal(SIGQUIT,cleanup); signal(SIGTERM,cleanup); signal(SIGPWR,cleanup); signal(SIGPIPE,cleanup); signal(SIGUSR1,print_stats); signal(SIGUSR2,reset_stats); signal(SIGALRM,identify); } /* * compare two ax.25 "flooding" addresses. * returns: floodtype * args: f is the known flood call prefix, len is its len. * c is what we are testing against it to see if it is * flood, floodN, or none. */ static int floodcmp(ax25_address *f, int len, ax25_address *c) { int i; for (i = 0; i < len; i++) if ((f->ax25_call[i] & 0xFE) != (c->ax25_call[i] & 0xFE)) return C_IS_NOFLOOD; return floodtype(c,i); } /* * floodtype: Is it a flood, or floodN, or not a flood at all? * The call should have blanks in the remainder * (e.g. WIDE-3), or a single digit followed by blanks * (WIDE3-3). If it has other junk then is is not a flood (WIDENED). */ static int floodtype(ax25_address *c, int i) { int dig = (c->ax25_call[i]&0xFE)>>1; if (dig == ' ') return C_IS_FLOOD; else if (dig >= '0' && dig <= '9' && ((i>=5) || (c->ax25_call[i+1] & 0xFE)>>1 == ' ')) return C_IS_FLOOD|C_IS_FLOODN; else return C_IS_NOFLOOD; } #define DEVTYPE(i) ((i)->i_proto == P_UDP)?"udp":\ ((i)->i_proto == P_AX25)?"ax25":\ ((i)->i_proto == P_UNIX)?"unix":"???" static void check_config() { int n, j; struct callsign_list *cl; printf("Linux APRS(tm) digipeater\nCopyright (c) 1996,1997,1999,2001,2002,2003,2004 Alan Crosswell, n2ygk@weca.org\n"); printf("Version: aprsdigi %s-%s\n",PACKAGE,VERSION); printf("This is free software covered under the GNU Public License.\n"); printf("There is no warranty. See the file COPYING for details.\n\n"); config_print(stdout); printf("My callsigns and aliases (routing table):\n"); printf("Callsign Interfaces...\n"); for (cl = calltab; cl; cl = cl->next) { struct interface_list *l; char t[10]; strcpy(t,ax25_ntoa_pretty(cl->callsign)); if (cl->flags&C_IS_FLOOD) strcat(t,"n-n"); /* indicate a WIDEn-n */ printf("%-9.9s",t); for (l = cl->l; l; l = l->next) { printf(" %s:%s",DEVTYPE(l->i),l->i->devname); } printf("\n"); } if (N_floods == 0) printf("No flooding callsigns\n"); if (Have_digipath) { printf("SSID-based omnidirectional routing:\n"); if (N_floods) { /* doing WIDEn-n so this won't get used */ fprintf(stderr,"ERROR: -d is inconsistent with WIDEn-n flooding\n"); exit(1); } if (intf_of(&Digipath[0]) == NULL) { fprintf(stderr,"ERROR: %s: first callsign in omni route is not one of my callsigns.\n", ax25_ntoa_pretty(&Path[n].fsa_digipeater[0])); exit(1); } for (j = 0; j < DIGISIZE; j++) { printf("%-9.9s ",ax25_ntoa_pretty(&Digipath[j])); } printf("\n"); } if (Digi_SSID) { printf("SSID-based directional routing:\n"); for (n = 0; n < 4; n++) { if (intf_of(&Path[n].fsa_digipeater[0]) == NULL) { fprintf(stderr,"ERROR: %s: first callsign in %c route is not one of my callsigns.\n", ax25_ntoa_pretty(&Path[n].fsa_digipeater[0]),Dirs[n]); exit(1); } printf("\n%c: ",Dirs[n]); for (j = 0; j < Path[n].fsa_ax25.sax25_ndigis; j++) printf("%-9.9s ",ax25_ntoa_pretty(&Path[n].fsa_digipeater[j])); } printf("\n"); } else { printf("SSID-based routing: (none)\n"); } /* flags */ printf("keep dupes for: %d seconds\n",Keep); printf("log file: %s\n",(Logfile)?Logfile:"(none)"); #define onoff(x) (x)?"ON":"OFF" printf("kill dupes: %s loops: %s testing: %s\n", onoff(Kill_dupes), onoff(Kill_loops), onoff(Testing)); #undef onoff fflush(stdout); } static void config_print(FILE *f) { struct interface *i; int n, j; fprintf(f,"# configuration:\n"); budlist_print_all(f); dupelist_print_all(f); for (i = Intf, n = 0; n < N_intf; i++,n++) { fprintf(f,"interface %s:%s\n", DEVTYPE(i),i->devname); fprintf(f," callsign %s\n",ax25_ntoa_pretty(&i->aliases[0])); for (j = 1; j < i->n_aliases; j++) { fprintf(f," alias %s\n",ax25_ntoa_pretty(&i->aliases[j])); } #define onoff(opt) fprintf(f," option %s %s\n",(#opt),((i->i_flags&(opt))?("on"):("off"))) onoff(SUBST_MYCALL); onoff(MICE_XLATE); onoff(X1J4_XLATE); onoff(I_TX); onoff(I_RX); onoff(I_TXSAME); onoff(I_3RDP); #undef onoff fprintf(f," option idinterval %d #(%02d:%02d)\n",i->idinterval, i->idinterval/60,i->idinterval%60); fprintf(f," option tag %s\n",(i->taglen)?i->tag:"#(none)"); if (i->bud) fprintf(f," budlist %d\n",i->bud->bl_list_no); if (i->dupe && i->dupe->dl_ent_head) fprintf(f," dupelist %d\n",i->dupe->dl_list_no); } fprintf(f,"# end of configuration\n\n"); } /* * budlist's can be "global" or per-interface. Basically, the * budlist is built up with -B|-b's prior to the interface's -p * and then these get glued to the per-interface budlist. To * reset the budlist between ports, use "-B -". */ static void budlist_add(char *item,int permit) { struct sockaddr_in *sin, *sinmask; struct sockaddr_in6 *sin6, *sin6mask; struct sockaddr_ax25 *sinax25, *sinax25mask; struct budlist_entry *e; if (!item || !*item) usage_budlist(); if (!Bl_head) { /* this is first invocation */ Bl_head = Bl_last = (struct budlist *)calloc(1,sizeof(struct budlist)); if (!Bl_head) die("malloc"); Bl_head->bl_list_no = 1; } if (item[0] == '-' && item[1] == '\0') { /* start a new list */ if (Bl_last->bl_ent_last) { /* if the list has entries... */ /* ... start a new list */ Bl_last->bl_next = (struct budlist *)calloc(1,sizeof(struct budlist)); if (!Bl_last->bl_next) die("malloc"); Bl_last->bl_next->bl_list_no = Bl_last->bl_list_no+1; Bl_last = Bl_last->bl_next; } return; } if (!Bl_last->bl_ent_head) { /* list has no elements yet */ Bl_last->bl_ent_head = Bl_last->bl_ent_last = (struct budlist_entry *)calloc(1,sizeof(struct budlist_entry)); if (!Bl_last->bl_ent_head) die("malloc"); } else if (!Bl_last->bl_ent_last->be_next) { /* alloc a new entry */ Bl_last->bl_ent_last->be_next = (struct budlist_entry *)calloc(1,sizeof(struct budlist_entry)); if (!Bl_last->bl_ent_last->be_next) die("malloc"); Bl_last->bl_ent_last = Bl_last->bl_ent_last->be_next; } /* done with all that allocation foolishness */ e = Bl_last->bl_ent_last; e->be_permit = permit; if (!strcasecmp(item,"any")) { bzero(&e->be_addr,sizeof(e->be_addr)); setmask(8*sizeof(e->be_mask), (u_char *)&e->be_mask); e->be_maskbits = -1; } else if (strncasecmp(item,"ax25:",5) == 0) { char *name; struct sockaddr_ax25 *call = (struct sockaddr_ax25 *)&e->be_addr; struct sockaddr_ax25 *callmask = (struct sockaddr_ax25 *)&e->be_mask; name = &item[5]; bzero(&e->be_addr,sizeof(e->be_addr)); if (ax25_aton_entry(name,call->sax25_call.ax25_call) < 0) die(item); call->sax25_family = AF_AX25; call->sax25_ndigis = 0; /* set maskbits as follows: * if callsign then mask the 6 bytes containing the call. * if callsign-SSID then mask all 7. */ bzero(&e->be_mask,sizeof(e->be_mask)); e->be_maskbits = (strchr(name,'-'))? 7*8 : 6*8; setmask(8*sizeof(call->sax25_family), (u_char *)&callmask->sax25_family); setmask(e->be_maskbits, (u_char *)callmask->sax25_call.ax25_call); } else if (strncasecmp(item,"ip:",3) == 0) { struct addrinfo *ai, hints = {0, PF_UNSPEC, SOCK_DGRAM, 0}; char *name, *mask; e->be_maskbits = 0; name = &item[3]; if (mask = strrchr(name,'/')) { *mask++ = '\0'; e->be_maskbits = atoi(mask); } if (getaddrinfo(name,NULL,&hints,&ai) < 0) die(item); bzero(&e->be_mask,sizeof(e->be_mask)); bcopy(ai->ai_addr,&e->be_addr,ai->ai_addrlen); switch (ai->ai_family) { case AF_INET: /* IPv4 */ sin = (struct sockaddr_in *)&e->be_addr; sinmask = (struct sockaddr_in *)&e->be_mask; if (e->be_maskbits == 0) e->be_maskbits = 32; /* sockaddr_in bitmask: sin_family all ones; sin_port all zeros; sin_addr specified number of ones */ setmask(8*sizeof(sin->sin_family), (u_char *)&sinmask->sin_family); setmask(e->be_maskbits, (u_char *)&sinmask->sin_addr); break; case AF_INET6: /* IPv6 */ sin6 = (struct sockaddr_in6 *)&e->be_addr; sin6mask = (struct sockaddr_in6 *)&e->be_mask; if (e->be_maskbits == 0) e->be_maskbits = 128; /* sockaddr_in6 bitmask: sin6_family ones; sin6_port zeros; sin6_flowinfo zeros; sin6_addr specified; sin6_scope_id zeros */ setmask(8*sizeof(sin6->sin6_family), (u_char *)&sin6mask->sin6_family), setmask(e->be_maskbits,(u_char *)&sin6mask->sin6_addr); break; default: fprintf(stderr,"%s: Unsupported protocol family (%d)\n",name,ai->ai_family); exit(1); } freeaddrinfo(ai); } else usage_budlist(); } static void budlist_print_all(FILE *f) { struct budlist *l; for (l = Bl_head; l; l=l->bl_next) budlist_print(f,l); } static void budlist_print(FILE *f, struct budlist *bud) { char host[1000]; struct sockaddr_in *sin; struct sockaddr_in6 *sin6; struct sockaddr_ax25 *sinax25; struct budlist_entry *b; if (!bud || !bud->bl_ent_head) return; for (b = bud->bl_ent_head; b; b = b->be_next) { printaddr(&b->be_addr,host,sizeof(host)); fprintf(f," budlist %d %s %s",bud->bl_list_no, (b->be_permit)?"permit":"deny",host); if (b->be_maskbits>=0) fprintf(f,"/%d\n",b->be_maskbits); else fprintf(f,"\n"); } } static void printaddr(struct sockaddr_storage *s, char *buf, int buflen) { struct sockaddr_in *sin = (struct sockaddr_in *)s; struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)s; struct sockaddr_ax25 *sinax25 = (struct sockaddr_ax25 *)s; switch (sin->sin_family) { case AF_INET: inet_ntop(sin->sin_family,&sin->sin_addr, buf, buflen); break; case AF_INET6: inet_ntop(sin6->sin6_family,&sin6->sin6_addr, buf, buflen); break; case AF_AX25: strncpy(buf,ax25_ntoa_pretty(&sinax25->sax25_call),buflen); break; case 0: strncpy(buf,"any",buflen); break; default: strncpy(buf,"???",buflen); break; } } /* * Is this packet permitted by budlist? * 1. Check (possibly IP) source address * 2. Check AX25 source callsign * 3. Check intermediate repeated digis * First match wins. */ int budlist_permit(struct stuff *s) { struct budlist_entry *be; struct interface *i = s->i; char testhost[200],host[200]; int j; if (!s->i->bud || !s->i->bud->bl_ent_head) /* no budlist */ return 1; /* permitted */ for (be = s->i->bud->bl_ent_head; be; be = be->be_next) { struct sockaddr_ax25 *be25 = (struct sockaddr_ax25 *)&be->be_addr; struct sockaddr_ax25 *bemask = (struct sockaddr_ax25 *)&be->be_mask; /* 1: check source address */ if (Verbose) { printaddr(&be->be_addr,testhost,sizeof(testhost)); printaddr(&i->rsafrom,host,sizeof(host)); fprintf(stderr,"budlist_permit: budlist %d %s %s/%d vs. net source %s\n", s->i->bud->bl_list_no, (be->be_permit)?"permit":"deny", testhost, be->be_maskbits, host); } if (cmpmask(8*sizeof(be->be_addr), (u_char *)&be->be_addr, (u_char *)&be->be_mask, (u_char *)&i->rsafrom) == 0) return be->be_permit; /* 2: check ax25 from call. */ if (be25->sax25_family != AF_AX25) continue; /* no need to compare non-ax25 buds */ if (Verbose) { fprintf(stderr,"budlist_permit: budlist %d %s %s/%d vs. ax25 source %s\n", s->i->bud->bl_list_no, (be->be_permit)?"permit":"deny", testhost, be->be_maskbits, ax25_ntoa_pretty(&s->in.ax_from_call)); } if (cmpmask(be->be_maskbits, (u_char *)&be25->sax25_call.ax25_call, (u_char *)&bemask->sax25_call.ax25_call, (u_char *)&s->in.ax_from_call) == 0) return be->be_permit; /* 3. check ax25 digis. */ for (j = 0; j < s->in.ax_next_digi-1; j++) { if (Verbose) { fprintf(stderr,"budlist_permit: budlist %d %s %s/%d vs. ax25 digi[%d] %s\n", s->i->bud->bl_list_no, (be->be_permit)?"permit":"deny", testhost, be->be_maskbits, j, ax25_ntoa_pretty(&s->in.ax_digi_call[j])); } if (cmpmask(be->be_maskbits, (u_char *)&be25->sax25_call.ax25_call, (u_char *)&bemask->sax25_call.ax25_call, (u_char *)&s->in.ax_digi_call[j]) == 0) return be->be_permit; } } return 1; /* permit */ } static void setmask(int bits, u_char *mask) { int B,b,rem; for (B = 0; B < bits/8; B++) { mask[B] |= 0xff; } for (b = 0, rem = 0; b < bits%8; b++) { rem = rem >> 1; rem |= 0x80; } mask[B] = rem; } static int cmpmask(int bits, u_char *val1, u_char *mask, u_char *val2) { int B,bytes; bytes = bits/8; if (bits%8) ++bytes; for (B = 0; B < bytes; B++) { if ((val1[B] & mask[B]) != (val2[B] & mask[B])) return val1[B] - val2[B]; } return 0; } /* gee, this looks like a copy of budlist. I should make a class. */ static void dupelist_add(char *item) { struct dupelist_entry *e; if (!item || !*item) usage_dupelist(); ++Doing_dupes; if (!Dl_head) { /* this is first invocation */ Dl_head = Dl_last = (struct dupelist *)calloc(1,sizeof(struct dupelist)); if (!Dl_head) die("malloc"); Dl_head->dl_list_no = 1; } if (item[0] == '-' && item[1] == '\0') { /* start a new list */ if (Dl_last->dl_ent_last) { /* if the list has entries... */ /* ... start a new list */ Dl_last->dl_next = (struct dupelist *)calloc(1,sizeof(struct dupelist)); if (!Dl_last->dl_next) die("malloc"); Dl_last->dl_next->dl_list_no = Dl_last->dl_list_no+1; Dl_last = Dl_last->dl_next; } return; } if (!Dl_last->dl_ent_head) { /* list has no elements yet */ Dl_last->dl_ent_head = Dl_last->dl_ent_last = (struct dupelist_entry *)calloc(1,sizeof(struct dupelist_entry)); if (!Dl_last->dl_ent_head) die("malloc"); } else if (!Dl_last->dl_ent_last->de_next) { /* alloc a new entry */ Dl_last->dl_ent_last->de_next = (struct dupelist_entry *)calloc(1,sizeof(struct dupelist_entry)); if (!Dl_last->dl_ent_last->de_next) die("malloc"); Dl_last->dl_ent_last = Dl_last->dl_ent_last->de_next; } /* done with all that allocation foolishness */ e = Dl_last->dl_ent_last; e->de_dev = item; } static void dupelist_print_all(FILE *f) { struct dupelist *l; for (l = Dl_head; l; l=l->dl_next) dupelist_print(f,l); } static void dupelist_print(FILE *f, struct dupelist *dupe) { char host[1000]; struct dupelist_entry *l; if (!dupe || !dupe->dl_ent_head) return; for (l = dupe->dl_ent_head; l; l = l->de_next) { fprintf(f," dupelist %d %s\n",dupe->dl_list_no,l->de_dev); } } static void add_intflist(struct interface_list **il, struct interface *i); /* * dupelist_init: Take dupelist from i->dupe, search for interfaces * with matching names and add them to i->dupe->dl_il. Do not add own * interface. */ static void dupelist_init() { struct dupelist_entry *de; struct dupelist *dl; struct interface *i,*j; int n; for (i = Intf; i < &Intf[N_intf]; i++) { if (i->dupe) { /* walk all entries in this list */ for (de = i->dupe->dl_ent_head; de; de = de->de_next) { char devname[100]; /* search for an interface name that matches */ for (j = Intf, n = 0; n < N_intf; j++,n++) { sprintf(devname,"%s:%s",DEVTYPE(j),j->devname); if (Verbose) fprintf(stderr,"dupelist_init: comparing %s to %s...\n", de->de_dev,devname); if ((strcasecmp(devname,de->de_dev) == 0) && j != i) { if (Verbose) fprintf(stderr," ... matched. Adding to interface list\n"); add_intflist(&i->dupe->dl_il,j); /* add j to dupe interface list */ break; } } if (n >= N_intf) { /* search fell through */ fprintf(stderr,"warning: dupelist %d interface %s not found.\n", i->dupe->dl_list_no,de->de_dev); } } } } } /* * add_intflist: Add an interface to an interface list. */ static void add_intflist(struct interface_list **il, struct interface *i) { struct interface_list *n = calloc(1,sizeof(struct interface_list)); if (n == NULL) die("malloc"); n->i = i; if (*il == NULL) *il = n; else { for (; (*il)->next; (*il) = (*il)->next) ; (*il)->next = n; } } /* * 3rd party tunneling per APRS spec 1.01 Ch. 17 * * What I implement is what I will call "transparent" tunneling. * For APRS 1.0 compatibility, need to implement "3rd party" tunneling: * 0. 3rd party only applies when input and output intfs are different. * 1. Make 3rdparty an option so I can do transparent tunneling too. * 2. For transmit to a 3rdparty intf: just drop unusused digipeaters. * 3. For transmit to any intf when pkt is received from a 3rdparty intf: * a. drop unused digipeaters (in case the sender didn't) * b. append Third-Party Network ID (Use UDPIP) followed by the xmit * intf callsign (MYCALL(i)) to digi list, marked as repeated. * c. Spit out "}" and then gen_cooked_ax25() (the Source Path * Header) into the payload, followed by the original payload. * d. Rewrite the raw ax25 header with a from_call of MYCALL, and no * digipeat path(!). * e. xmit on the ax25 interface(s). * Editorial note: Tunneling was implemented this way because the APRS * authors were using hardware TNC-2's in CONVerse mode and were unable to * modify the real AX.25 headers the way I can. */ /* removed non-repeated digipeaters */ static void drop_unused_digis(struct ax_calls *calls) { if (!calls->ax_n_digis || calls->ax_next_digi >= calls->ax_n_digis) return; /* all digis are used up */ if ((calls->ax_n_digis = calls->ax_next_digi) > 0) { /* truncate the list */ calls->ax_digi_call[calls->ax_next_digi-1].ax25_call[ALEN] |= HDLCAEB; } else { /* no digis left */ calls->ax_from_call.ax25_call[ALEN] |= HDLCAEB; } if (Verbose) fprintf(stderr,"3rd party: Unused digis have been dropped.\n"); } /* * from_3rdparty: generates the source path header and insert it into * the list of packet payloads in pkt[]. * clobbers the s->out digipeater list as well. */ static void from_3rdparty(struct stuff *s, int npkts, /* dimension of the next two vectors */ u_char *pkt[], /* output buffers for source path header */ int pktl[]) /* output length of sph (AX25_MTU max) */ { u_char pref[AX25_MTU], *pp; int j, plen, rem; /* a. drop unused digipeaters (in case the sender didn't) */ drop_unused_digis(&s->out); /* b. append Third-Party Network ID (Use UDPIP) ... */ /* XXX fencepost check */ if (s->out.ax_n_digis >= AX25_MAX_DIGIS-1) { if (Verbose) fprintf(stderr,"%s: 3rd party digi list overflow. First 2 digis dropped.\n", s->i->port); for (j = 2; j < s->out.ax_n_digis; j++) s->out.ax_digi_call[j - 2] = s->out.ax_digi_call[j]; s->out.ax_n_digis -= 2; s->out.ax_next_digi -= 2; } s->out.ax_digi_call[s->out.ax_n_digis] = Udpipcall; s->out.ax_digi_call[s->out.ax_n_digis].ax25_call[ALEN] |= REPEATED; /* ... followed by the xmit intf callsign (MYCALL(i)) ... */ s->out.ax_digi_call[s->out.ax_n_digis+1] = I_MYCALL(s->i); s->out.ax_digi_call[s->out.ax_n_digis+1].ax25_call[ALEN] |= REPEATED|HDLCAEB; s->out.ax_n_digis += 2; s->out.ax_next_digi += 2; /* c. Spit out "}" and then gen_cooked_ax25() (the Source Path Header) into the payload, followed by the original payload. */ plen = 0; pref[plen++] = '}'; rem = AX25_MTU - plen; pp = &pref[1]; gen_cooked_ax25(&pp,&rem,&s->out); /* generate the source path header */ plen = AX25_MTU - rem + 1; /* XXX??? */ /* for each payload, insert the prefix in front of it! */ for (j = 0; j < npkts; j++) { /* may have to repeat for multiple pkts */ u_char *oldp = pkt[j]; if (pktl[j]) { if (pktl[j] + plen > AX25_MTU) { pktl[j] -= AX25_MTU-pktl[j]-plen; if (Verbose) fprintf(stderr,"%s: Oversized 3rd party detunneled packet truncated.\n", s->i->port); } bcopy(pkt[j],&pref[plen-1],pktl[j]); /* tag vecp onto end of pref. */ bcopy(pref,pkt[j],pktl[j]+=plen-1); /* not sure why this is -1 */ pref[plen] = '\0'; } } /* d. Rewrite the raw ax25 header with a from_call of MYCALL, and no * digipeat path(!). */ s->out.ax_n_digis = s->out.ax_next_digi = 0; s->out.ax_from_call.ax25_call[ALEN] |= HDLCAEB; s->out.ax_from_call = I_MYCALL(s->i); } static void to_3rdparty(struct ax_calls *calls) { drop_unused_digis(calls); /* just drop unused digipeaters */ } aprsdigi-2.4.4/aprsmon.c0000644000076400007640000002157010016741515010644 /* aprsmon: An incredible simulation of a non-KISS TNC with MONitor ON * (for UI frames only) on a Linux AX.25 interface. Why? So it can * be run under inetd and connected to by programs like javAPRS that * want to see a TNC datastream. * (e.g. FROM>TO,DIGI,DIGI...DIGI:text) * * Runs in two modes: * 1. Just spits out received data to stdout. * 2. Buffers up some number of minutes worth of received packets into * a segment. #1 mode dumps contents of this segment before going "live." * * A socket opened in SOCK_PACKET mode returns frames that are exactly * what a KISS TNC sends: a zero, indicating data, followed by the * contents of the AX.25 packet. This program has to decode all that * AX.25 junk all over again just to print it out in generic TNC MONitor * format. * * This program is derived from AX.25 utils 2.0.12 listen(8) written by * (according to the lsm): * * jsn@cs.nott.ac.uk (Jonathan Naylor) * tpmannin@cc.hut.fi (Tomi Manninen) * A.Cox@swansea.ac.uk (Alan Cox) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2 as * published by the Free Software Foundation. * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. * * (See the file "COPYING" that is included with this source distribution.) * * portions Copyright (c) 1996,1997,1998,1999 Alan Crosswell * Alan Crosswell, N2YGK * 144 Washburn Road * Briarcliff Manor, NY 10510, USA * n2ygk@weca.org */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef HAVE_LIBAX25_EXTENSIONS #include "libax25ext.h" #endif #ifdef USE_SHM #include "aprsshm.h" #endif #include "mic_e.h" #define ALEN 6 #define AXLEN 7 /* SSID mask and various flags that are stuffed into the SSID byte */ #define SSID 0x1E #define HDLCAEB 0x01 #define REPEATED 0x80 #define UI 0x03 /* unnumbered information (unproto) */ #define PID_NO_L3 0xF0 /* no level-3 (text) */ void dump(FILE *f,unsigned char *, int,time_t); void fmt(const unsigned char *, int, unsigned char **, unsigned char **,time_t); char *pax25(char *, const unsigned char *); void cleanup(int); int master = 0; /* data collector */ int keepfor = 30; /* minutes to keep collected data. */ int raw = 0; /* print raw data */ char *infofile = "/var/ax25/aprsmon.info"; #ifndef PACKAGE #define PACKAGE "aprsmon" #endif #ifndef VERSION #define VERSION "$Revision: 1.1.1.1 $" #endif char *title = "Live data from Linux"; int main(int argc, char **argv) { unsigned char buffer[1500]; int size; int s; char *port = NULL, *dev = NULL; struct sockaddr sa; struct ifreq ifr; int proto = ETH_P_AX25; time_t now; #ifdef USE_SHM #define OPTS "p:amk:i:t:rv" #else #define OPTS "p:at:rv" #endif while ((s = getopt(argc, argv, OPTS)) != -1) { switch (s) { #ifdef USE_SHM case 'm': master++; break; case 'i': infofile = optarg; /* file name for passing seg/sem info */ break; case 'k': /* keep for optarg minutes */ keepfor = atoi(optarg); break; #endif case 'p': /* entry in axports */ port = optarg; break; case 'a': /* allows 'hearing' my transmitted packets */ proto = ETH_P_ALL; break; case 'r': /* raw data printing */ raw++; break; case 't': title = optarg; break; case 'v': printf("aprsmon: %s-%s\n",PACKAGE,VERSION); exit(0); case '?': #ifdef USE_SHM fprintf(stderr, "Usage: aprsmon [-ar] [-p port] [-m [-k minutes]] [-i infofile] [-t title]\n"); #else fprintf(stderr, "Usage: aprsmon [-ar] [-p port] [-t title]\n"); #endif return 1; } } if (ax25_config_load_ports() == 0) fprintf(stderr, "aprsmon: no AX.25 port data configured\n"); if (port != NULL) { if ((dev = ax25_config_get_dev(port)) == NULL) { fprintf(stderr, "aprsmon: invalid port name - %s\n", port); return 1; } } if ((s = socket(AF_PACKET, SOCK_PACKET, htons(proto))) == -1) { perror("socket"); return 1; } signal(SIGHUP,cleanup); signal(SIGINT,cleanup); signal(SIGQUIT,cleanup); signal(SIGPWR,cleanup); signal(SIGPIPE,cleanup); #ifdef USE_SHM if (master) { if (shm_master(keepfor,infofile)) return 1; } else #endif { struct utsname me; uname(&me); printf("aprsmon>JAVA:javaMSG :Linux APRS server (%s-%s by Alan Crosswell, N2YGK) on %s running %s %s\r\n", PACKAGE, VERSION, me.nodename, me.sysname, me.release); #ifdef USE_SHM (void) shm_slave(stdout,infofile); #endif printf("# Live data follows:\r\n"); printf("aprsmon>JAVA:javaTITLE:%s\r\n",title); fflush(stdout); } for (;;) { int asize; asize = sizeof(sa); if ((size = recvfrom(s, buffer, sizeof(buffer), 0, &sa, &asize)) == -1) { perror("recv"); return 1; } if (dev != NULL && strcmp(dev, sa.sa_data) != 0) continue; time(&now); if (proto == ETH_P_ALL) { /* promiscuous mode? */ strcpy(ifr.ifr_name, sa.sa_data); if (ioctl(s, SIOCGIFHWADDR, &ifr) < 0 || ifr.ifr_hwaddr.sa_family != AF_AX25) continue; /* not AX25 so ignore this packet */ } #ifdef USE_SHM if (master) collect(buffer,size); else #endif dump(stdout,buffer,size,now); } } void dump(FILE *f, unsigned char *buf, int len, time_t now) { unsigned char *cp1,*cp2; fmt(buf,len,&cp1,&cp2,now); if (*cp1) { fprintf(f,"%s\r\n",cp1); } if (*cp2) { fprintf(f,"%s\r\n",cp2); } fflush(f); } void fmt(const unsigned char *buf, int len,unsigned char **cp1, unsigned char **cp2, time_t now) { static unsigned char buf1[1000],buf2[100]; char mic1[200],mic2[200]; int l1,l2; char from[10],to[10],digis[100]; int i,hadlast,l; char tmp[15]; *buf1 = *buf2 = '\0'; *cp1 = buf1; *cp2 = buf2; if ((buf[0] & 0xf) != 0) /* not a kiss data frame */ return; ++buf; --len; if (len < (AXLEN+ALEN+1)) /* too short */ return; pax25(to,buf); /* to call */ pax25(from,&buf[AXLEN]); /* from call */ buf+=AXLEN; /* skip over the from call now... */ len-=AXLEN; *digis = '\0'; if (!(buf[ALEN] & HDLCAEB)) { /* is there a digipeater path? */ for (l=0, buf+=AXLEN, len-=AXLEN, i = 0; i < 6 && len >= 0; i++, len-=AXLEN, buf+=AXLEN) { int nextrept = buf[AXLEN+ALEN]&REPEATED; if (buf[ALEN]&HDLCAEB) nextrept = 0; pax25(tmp,buf); if (*tmp) { sprintf(&digis[l],",%s%s",tmp,(buf[ALEN]&REPEATED&&!nextrept)?"*":""); ++hadlast; l += strlen(&digis[l]); } if (buf[ALEN] & HDLCAEB) break; } } buf += AXLEN; len -= AXLEN; if (len <= 0) return; /* no data after callsigns */ if (*buf++ == UI && *buf++ == PID_NO_L3) { len -= 2; } else { return; /* must have UI text to be useful */ } /* now check to see if it's a mic-e frame & rewrite it */ if (fmt_mic_e(to,buf,len,mic1,&l1,mic2,&l2,now)) { /* it was a MIC-E */ mic1[l1] = mic2[l2] = '\0'; if (l1) sprintf(buf1,"%s>%s%s:%s",from,"APRS",digis,mic1); if (l2) sprintf(buf2,"%s>%s%s:%s",from,"APRS",digis,mic2); } else if (fmt_x1j4(to,buf,len,mic1,&l1,mic2,&l2,now)) { /* it was an X1J4 digi */ mic1[l1] = mic2[l2] = '\0'; if (l1) sprintf(buf1,"%s>%s%s:%s",from,to,digis,mic1); } else { /* not mic-e/x1j4, so just print the packet without editing */ sprintf(buf1,"%s>%s%s:",from,to,digis); l = strlen(buf1); for (i = 0; i < len; i++,l++) { buf1[l] = (raw||isprint(buf[i]))?buf[i]:' '; /* keep it clean */ } buf1[l] = '\0'; } return; } char *pax25(char *buf, const unsigned char *data) { int i, ssid; char *s; char c; s = buf; for (i = 0; i < ALEN; i++) { c = (data[i] >> 1) & 0x7F; if (!isalnum(c) && c != ' ') { strcpy(buf, "[invalid]"); return buf; } if (c != ' ') *s++ = c; } if ((ssid = (data[ALEN] & SSID)>>1) != 0) sprintf(s, "-%d", ssid); else *s = '\0'; return(buf); } void cleanup(sig) int sig; { #ifdef USE_SHM shm_cleanup(sig); /* clean up shared memory, etc. */ #endif exit(0); } aprsdigi-2.4.4/aprsshm.c0000644000076400007640000001725410016741515010646 #if defined(USE_SHM) && defined(HAVE_SHMCTL) /* * routines to collect up packets for 'keepfor' minutes, manage shared * memory circular buffer, etc. * See aprsmon.c for the main program. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2 as * published by the Free Software Foundation. * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. * * (See the file "COPYING" that is included with this source distribution.) * * Copyright (c) 1996,1997,1999 Alan Crosswell * Alan Crosswell, N2YGK * 144 Washburn Road * Briarcliff Manor, NY 10510, USA * n2ygk@weca.org */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "aprsshm.h" #define MAXPPM 10 #define MAXPKT 256 struct pkt { /* we make a circular buffer of these */ int len; /* packet length */ time_t recvd; /* when received */ unsigned char data[MAXPKT]; /* the packet. */ }; struct pktseg { /* mapping of the shared segment */ struct pkt *head, *tail; /* relative addr */ int keepfor; /* might as well make this info available */ int filled; /* and fact that we did some early tosses */ int segsize; /* need this in the client */ struct pkt pkt0; /* first packet in seg */ }; static int seg = -1, segsize = 0, sem = -1, master = 0; static struct pktseg *pktseg = NULL; static char *infofile = NULL; /* convert relative ptr to absolute & vice-versa */ #define RELABS(x) ((struct pkt *)(((unsigned int)(x))+(unsigned int)pktseg)) #define ABSREL(x) ((struct pkt *)(((unsigned int)(x))-(unsigned int)pktseg)) #define PKTSIZE (sizeof(struct pkt)) int shm_master(k,ifile) /* "collector" shared memory master */ int k; /* keep for n minutes */ char *ifile; { struct sembuf sops[1]; FILE *info; master = 1; infofile = ifile; segsize = sizeof(struct pktseg)+(k*MAXPPM*PKTSIZE); if ((seg = shmget(IPC_PRIVATE,segsize,IPC_CREAT|0644)) < 0) { perror("shmget"); return -1; } if ((pktseg = (struct pktseg *)shmat(seg,0,0)) < 0) { perror("shmat"); return -1; } if ((sem = semget(IPC_PRIVATE,1,IPC_CREAT|0644)) < 0) { perror("semget"); return -1; } if (semctl(sem,0,SETVAL,1) < 0) { /* initialize the semaphore to locked */ perror("semctl"); return -1; } if ((info = fopen(infofile,"w")) != NULL) { fprintf(info,"%d %d\n",seg,sem); fclose(info); } else { perror(infofile); return -1; } bzero(pktseg,segsize); /* initialize the shared segment */ pktseg->segsize = segsize; pktseg->keepfor = k; pktseg->head = ABSREL(&pktseg->pkt0); pktseg->tail = (struct pkt *)-1; sops[0].sem_num = 0; sops[0].sem_op = -1; /* release the lock */ sops[0].sem_flg = 0; if (semop(sem,sops,1) < 0) { perror("semop"); return -1; } return 0; } void shm_cleanup(sig) /* release segment and semaphore */ int sig; { if (pktseg) { shmdt((char *)pktseg); } if (master) { if (infofile) unlink(infofile); if (seg >= 0) shmctl(seg,IPC_RMID,0); if (sem >= 0) semctl(sem,0,IPC_RMID,0); } } int shm_slave(f,ifile) /* "client" shared memory slave */ FILE *f; char *ifile; { struct sembuf sops[1]; FILE *info; infofile = ifile; if ((info = fopen(infofile,"r"))) { if (fscanf(info,"%d%d",&seg,&sem) != 2) { fclose(info); fprintf(stderr,"#%s: didn't scan\n",infofile); return -1; } fclose(info); } else { /* no collector running. That's OK. */ printf("# No saved data available.\r\n"); return -1; } if ((pktseg = (struct pktseg *)shmat(seg,0,SHM_RDONLY)) < 0) { perror("shmat"); return -1; } segsize = pktseg->segsize; sops[0].sem_num = 0; sops[0].sem_op = 0; /* wait for a read lock?? */ sops[0].sem_flg = 0; if (semop(sem,sops,1) < 0) { perror("semop"); return -1; } dump_saved(f); /* print out the saved stuff */ shmdt((char *)pktseg); return 0; } /* accumulate packets and age out stale ones */ void collect(buf,len) unsigned char *buf; int len; { time_t now = time(NULL); struct pkt *p; struct sembuf sops[1]; if (len>MAXPKT) { fprintf(stderr,"buffer overrun (pkt len %d)\n",len); len = MAXPKT; } /* obtain the write lock */ sops[0].sem_num = 0; sops[0].sem_op = 1; sops[0].sem_flg = 0; if (semop(sem,sops,1) < 0) { perror("semop"); return; } /* next free packet goes right after tail packet */ p = free_stale(now,1); /* toss stale packets/make room */ p->recvd = now; p->len = len; bcopy(buf,p->data,len); bzero(&p->data[len],MAXPKT-len); /* clean out any garbage */ pktseg->tail = ABSREL(p); /* new tail */ /* release the write lock */ sops[0].sem_num = 0; sops[0].sem_op = -1; sops[0].sem_flg = 0; if (semop(sem,sops,1) < 0) { perror("semop"); } } /* get rid of stale (older than keepfor minutes) packets and more packets if the buffer is full and makespace is true. Returns abs pointer to where there's room for next packet. */ struct pkt * free_stale(now,makespace) /* lose stale packets */ time_t now; int makespace; { struct pkt *head = RELABS(pktseg->head); struct pkt *tail = RELABS(pktseg->tail); struct pkt *segend = (struct pkt *)((char *)pktseg+segsize); struct pkt *nextp; int tossed = 0; if (pktseg->tail == (struct pkt *)-1) { /* nothing in buffer yet! */ return head; } /* throw out any stale packets, moving head forward through list. */ while((head->recvd < (now - pktseg->keepfor*60)) && head != tail) { ++tossed; if (++head >= segend) { /* wrap around */ head = &pktseg->pkt0; } } pktseg->head = ABSREL(head); /* find where the next packet will be stuffed */ nextp = &tail[1]; if (nextp >= segend) { /* have to circle around */ nextp = &pktseg->pkt0; } /* must flush oldest non-stale (head) packet */ if (makespace && !tossed && head == nextp) { if (++head >= segend) /* wrap around */ head = &pktseg->pkt0; pktseg->head = ABSREL(head); pktseg->filled++; } if (pktseg->filled && tossed) /* full buffer remedied by stale-out */ pktseg->filled = 0; return nextp; } void dump_saved(f) /* write saved pkts to file */ FILE *f; { extern void dump(FILE *,unsigned char *, int,time_t); struct pkt *head = RELABS(pktseg->head); struct pkt *tail = RELABS(pktseg->tail); struct pkt *segend = (struct pkt *)((char *)pktseg+segsize); struct pkt *p; struct tm *t; if (pktseg->tail == (struct pkt *)-1) return; /* no logged packets yet. */ t = gmtime(&head->recvd); fprintf(f,"# Activity seen since %04d%02d%02d %02d%02dZ:\r\n", t->tm_year+1900, t->tm_mon+1, t->tm_mday, t->tm_hour, t->tm_min); for (p = head; p != tail;) { /* then print the rest */ dump(f,p->data,p->len,p->recvd); if (++p >= segend) { /* have to circle around */ p = &pktseg->pkt0; } } if (p == tail) { dump(f,p->data,p->len,p->recvd); } fprintf(f,"# end of recorded activity.\r\n"); } #endif aprsdigi-2.4.4/aprsshm.h0000644000076400007640000000033410016741515010642 extern int shm_master(int,char *); extern int shm_slave(FILE *,char *); extern void collect(unsigned char *, int); extern struct pkt *free_stale(time_t,int); extern void dump_saved(FILE *); extern void shm_cleanup(int); aprsdigi-2.4.4/fiforead.c0000644000076400007640000000234210016741515010740 /* fiforead: read from the aprsdigi fifo */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int Verbose = 1; static void die(char *s); main(int argc, char **argv) { struct sockaddr_un mysun,remsun; int size; int sock; u_char buf[1024]; int n; if (argc != 2) { fprintf(stderr,"Usage: %s file\n", argv[0]); exit(1); } bzero(&mysun,sizeof(mysun)); mysun.sun_family = AF_UNIX; strncpy(mysun.sun_path,argv[1],sizeof(mysun.sun_path)); if (Verbose) fprintf(stderr,"opening unix socket on %s\n", mysun.sun_path); if ((sock = socket(AF_UNIX, SOCK_DGRAM, 0)) < 0) { die("socket"); } if (bind(sock, (struct sockaddr *)&mysun, sizeof(mysun)) < 0 && errno != EADDRINUSE) { die(mysun.sun_path); } size = sizeof(remsun); while ((n = recvfrom(sock,buf,sizeof(buf),0,(struct sockaddr *)&remsun,&size)) >= 0) { printf("read %d: %*.*s\n",n,n,n,buf); size = sizeof(remsun); } } static void die(char *s) { perror(s); exit(1); } aprsdigi-2.4.4/fifowrite.c0000644000076400007640000000177510016741515011170 /* fifowrite: write to the aprsdigi fifo */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int Verbose = 1; static void die(char *s); main(int argc, char **argv) { struct sockaddr_un mysun; int sock; u_char buf[1024]; int n; if (argc != 2) { fprintf(stderr,"Usage: %s file\n", argv[0]); exit(1); } bzero(&mysun,sizeof(mysun)); mysun.sun_family = AF_UNIX; strncpy(mysun.sun_path,argv[1],sizeof(mysun.sun_path)); if ((sock = socket(AF_UNIX, SOCK_DGRAM, 0)) < 0) { die("socket"); } while (fgets(buf,sizeof(buf),stdin)) { int sent; if ((sent = sendto(sock,buf,strlen(buf),0,(struct sockaddr *)&mysun, sizeof(mysun))) < 0) die("sendto"); } } static void die(char *s) { perror(s); exit(1); } aprsdigi-2.4.4/mic_e_test.c0000644000076400007640000000172310016741515011276 #include #include #include #include #include #include #include "mic_e.h" void main(argc,argv) /* test this formatter */ int argc; char **argv; { char b[100]; char ob1[512],ob2[512]; int ol1,ol2; bzero(b,sizeof(b)); while (fgets(b,sizeof(b),stdin)) { int tl = strlen(b); u_char *to = strchr(b,'>'); u_char *i = strchr(b,':'); time_t tick; if (tl < sizeof(b) && b[tl-1] == '\n') b[tl-1] = '\0'; if (!to || !i) { putchar('?'); puts(b); continue; } ++to; ++i; time(&tick); if (fmt_mic_e(to,i,strlen(i),ob1,&ol1,ob2,&ol2,tick) || fmt_x1j4(to,i,strlen(i),ob1,&ol1,ob2,&ol2,tick)) { if (ol2) { fwrite(ob2,ol2,1,stdout); /* telemetry */ putchar('\n'); } if (ol1) { fwrite(ob1,ol1,1,stdout); /* posit */ putchar('\n'); } } else { putchar('#'); puts(b); } bzero(b,sizeof(b)); } } aprsdigi-2.4.4/testmcast.c0000644000076400007640000001123310016741515011167 /* test multicast */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef AX25_MTU #define AX25_MTU 256 #endif #include #include "libax25ext.h" static void die(char *p, char *s) { fprintf(stderr,"%s: ",p); perror(s); exit(1); } main(int argc,char **argv) { struct sockaddr_in sin; struct sockaddr tsa, rsa; struct hostent *hp; struct servent *sp; char *name = argv[1], *service = argv[2], *ttl = argv[3]; const int one=1; int ttlval; int tsock, rsock; unsigned char buffer[AX25_MTU]; int selfds = 0; fd_set select_mask; if (argc < 4 || (ttlval = atoi(ttl)) <= 0) { fprintf(stderr,"Usage: %s destination port ttl\n",argv[0]); exit(1); } fprintf(stderr,"opening UDP socket on %s/%s/%d\n", name, service, ttlval); bzero(&sin, sizeof(struct sockaddr_in)); if (isdigit(*name)) { sin.sin_addr.s_addr = inet_addr(name); } else if (hp = gethostbyname(name)) { bcopy(hp->h_addr, (char *)&sin.sin_addr, hp->h_length); } else { fprintf(stderr,"Unrecognized host name: %s\n",name); exit(1); } if (isdigit(*service)) { sin.sin_port = htons(atoi(service)); } else if (sp = getservbyname(service,"udp")) { sin.sin_port = sp->s_port; } else { fprintf(stderr,"Unrecognized service: %s\n",service); exit(1); } sin.sin_family = AF_INET; if (argc == 4) { if ((tsock = socket(AF_INET, SOCK_DGRAM, 0)) == -1) { perror(name); exit(1); } if (setsockopt(tsock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0) die("setsockopt SO_REUSEADDR",name); if (IN_MULTICAST(ntohl(sin.sin_addr.s_addr))) { if (setsockopt(tsock, SOL_IP, IP_MULTICAST_TTL, &ttlval, sizeof(ttlval)) < 0) die("setsockopt MULTICAST_TTL",name); } else { if (setsockopt(tsock, SOL_IP, IP_TTL, &ttlval, sizeof(ttlval)) < 0) die("setsockopt IP_TTL",name); } bzero(&tsa,sizeof(tsa)); bcopy(&sin,&tsa,sizeof(sin)); /* fill sockaddr w/sockaddr_in */ } if (argc == 4) { if (connect(tsock, &tsa, sizeof(struct sockaddr)) < 0) { die("connect(tsock)",name); } } /* now the rsock */ if ((rsock = socket(AF_INET, SOCK_DGRAM, 0)) == -1) { die("rsock = socket",name); } if (setsockopt(rsock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0) die("rsock SO_REUSEADDR",name); /* if the UDP socket is a multicast group, then do IGMP join for rsock */ if (!IN_MULTICAST(ntohl(sin.sin_addr.s_addr))) sin.sin_addr.s_addr = INADDR_ANY; bzero(&rsa,sizeof(rsa)); bcopy(&sin,&rsa,sizeof(sin)); if (bind(rsock, &rsa, sizeof(struct sockaddr)) < 0) { die("bind(rsock)",name); } if (IN_MULTICAST(ntohl(sin.sin_addr.s_addr))) { struct ip_mreq mreq; mreq.imr_multiaddr = sin.sin_addr; mreq.imr_interface.s_addr = INADDR_ANY; setsockopt(rsock, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)); } /* sockets set up, enter loop, receiving from stdin & rsock, transmitting what's read from stdin on tsock */ /* set up the initial select mask */ FD_ZERO(&select_mask); FD_SET(rsock, &select_mask); FD_SET(0, &select_mask); selfds = rsock+1; for (;;) { int len; fd_set rmask = select_mask; int size = sizeof(struct sockaddr); fprintf(stderr,"before select rsock=%d rmask=0x%0x\n",rsock,rmask); if (select(selfds,&rmask,NULL,NULL,NULL) < 0) { if (errno == EINTR) continue; perror("select"); return 1; } fprintf(stderr,"after select rmask=0x%0x\n",rmask); /* find which sockets have data */ if (FD_ISSET(rsock,&rmask)) { fprintf(stderr,"rsock was set\n"); if ((len = recvfrom(rsock,buffer,sizeof(buffer),0,&rsa,&size)) < 0) { if (errno == EINTR) continue; perror(name); exit(1); } fprintf(stderr,"rsock rec'd %d: %s\n",len,buffer); } if (FD_ISSET(0,&rmask)) { int r; fprintf(stderr,"stdin was set\n"); if ((len = read(0,buffer,sizeof(buffer))) < 0) { perror("stdin"); exit(1); } fprintf(stderr,"stdin read %d: %s\n",len,buffer); /* now xmit it */ if ((r = sendto(tsock,buffer,len,0,&tsa,sizeof(tsa))) < 0) die("sendto","xmit"); fprintf(stderr,"transmitted %d\n",r); } } /* end of for(;;) */ return 0; /* NOTREACHED */ } aprsdigi-2.4.4/testparse.c0000644000076400007640000001003210016741515011166 /* test parse_cooked_ax25 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "libax25ext.h" static void print_it(FILE *f, struct ax_calls *calls, u_char *data, int len); static void drop_unused_digis(struct ax_calls *); main() { unsigned char buf[2048],*bp; int buflen, *lp = &buflen; while (fgets(buf,sizeof(buf),stdin)) { unsigned char obuf[2048], *op; int r,olen = sizeof(obuf), *olp = &olen; struct ax_calls calls; bp = buf; buflen = strlen(buf); if (buf[buflen-1] == '\n') buf[--buflen] = '\0'; op = obuf; olen = sizeof(obuf); bzero(obuf,sizeof(obuf)); fprintf(stderr,"================================\ninput: %s\n",buf); switch(r=parse_cooked_ax25(&bp,lp,&calls)) { case PK_VALID: case PK_VALDIGI: fprintf(stderr,"valid%s packet. n_digis: %d next_digi: %d type: %d pid: %d\n", (r==PK_VALDIGI)?" repeatable":"", calls.ax_n_digis, calls.ax_next_digi, calls.ax_type, calls.ax_pid); fprintf(stderr,"data @0x%0x (len %d): %s\n",bp,buflen,bp); fprintf(stderr,"---- print_it ----\n"); print_it(stderr,&calls,bp,buflen); fprintf(stderr,"---- gen_cooked thing: ----\n"); fprintf(stderr,"gen_cooked rc: %d\n",gen_cooked_ax25(&op,olp,&calls)); fprintf(stderr,"cooked@0x%0x (len %d): %s\n",obuf,olen,obuf);/* ?? */ fprintf(stderr,"data @0x%0x (len %d): %s\n", bp, buflen, bp); strncpy(&obuf[sizeof(obuf)-olen],bp,buflen); printf("%s\n",obuf); fprintf(stderr,"after dropping unused digis:\n"); drop_unused_digis(&calls); fprintf(stderr," n_digis: %d next_digi: %d type: %d pid: %d\n", calls.ax_n_digis, calls.ax_next_digi, calls.ax_type, calls.ax_pid); print_it(stderr,&calls,bp,buflen); break; case PK_INVALID: fprintf(stderr,"failed to parse\n"); break; default: fprintf(stderr,"bogus return value\n"); break; } } } /* some defines that really belong in a header file! */ #define ALEN 6 /* index to where the SSID and flags go */ #define AXLEN 7 /* length of a callsign */ /* SSID mask and various flags that are stuffed into the SSID byte */ #define SSID 0x1E #define HDLCAEB 0x01 #define REPEATED 0x80 #define UI 0x03 /* unnumbered information (unproto) */ #define PID_NO_L3 0xF0 /* no level-3 (text) */ #define C 0x80 #define SSSID_SPARE 0x40 /* must be set if not used */ #define ESSID_SPARE 0x20 static void print_it(FILE *f, struct ax_calls *calls, u_char *data, int len) { int j; char asc_from[12],asc_to[12]; if (f == NULL) return; fprintf(stderr,"print_it: n_digis %d next_digi %d\n", calls->ax_n_digis,calls->ax_next_digi); strncpy(asc_to,ax25_ntoa_pretty(&calls->ax_to_call),sizeof(asc_to)); strncpy(asc_from,ax25_ntoa_pretty(&calls->ax_from_call),sizeof(asc_from)); fprintf(f,"%s>%s",asc_from,asc_to); for (j = 0; j < calls->ax_n_digis; j++) { fprintf(stderr,"\nprint_it: digi[%d]: %s %s\n",j, (calls->ax_digi_call[j].ax25_call[ALEN]&REPEATED)?"REPEATED":"", (calls->ax_digi_call[j].ax25_call[ALEN]&HDLCAEB)?"HDLCAEB":""); fprintf(f,",%s%s",ax25_ntoa_pretty(&calls->ax_digi_call[j]), (calls->ax_digi_call[j].ax25_call[ALEN]&REPEATED && (j == calls->ax_next_digi-1))?"*":""); } fprintf(f,":%.*s\n",len,data); } static void drop_unused_digis(struct ax_calls *calls) { if (!calls->ax_n_digis || calls->ax_next_digi >= calls->ax_n_digis) return; /* all digis are used up */ calls->ax_n_digis = calls->ax_next_digi; /* truncate the list */ calls->ax_digi_call[calls->ax_next_digi-1].ax25_call[ALEN] |= HDLCAEB; } aprsdigi-2.4.4/aprsdigi.80000644000076400007640000004673310017140357010722 .TH APRSDIGI 8 "25 February 2004" .SH NAME aprsdigi \- APRS(\*(Tm) digipeater .SH SYNOPSIS .nf .BI "aprsdigi " options .fi .SH DESCRIPTION .PP .I Aprsdigi is a specialized Amateur Packet Radio (AX.25) UI-frame digipeater for the Automatic Position Reporting Systems, APRS(tm). It uses the Linux kernel AX.25 network stack as well as the SOCK_PACKET facility to listen for packets on one or more radio interfaces (ports) and repeat those packets -- with several possible modifications -- on the same or other interfaces. .I Aprsdigi can also use the Internet to tunnel connections among other APRS digipeaters and nodes using IPv4 or IPv6 UDP unicast or multicast. .PP .I Aprsdigi implements conventional packet radio AX.25 digipeating, in which a packet is digipeated if the next hop (non-repeated) digipeater ("via") callsign matches the AX.25 port's callsign and sub-station ID (SSID) or an .I alias callsign and SSID. .PP There are a number of extensions to conventional digipeating that have been proposed for use in the APRS community. Some of these features have been adopted by Terminal Node Controller (TNC) manufacturers, notably Paccomm and Kantronics. .I Aprsdigi implements most if not all of the commercialy adopted and proposed features. See the APRS 1.0 Protocol Specification at www.tapr.org for protocol documentation. .I Aprsdigi attempts to minimally comply with the protocol specification as well as support experimental APRS features. Specific features implemented include: .PP .IP \(bu 2 Single-interface conventional UI-frame digipeating. .IP \(bu 2 Cross-interface digipeating (also known as bridging, routing or gatewaying) and one-to-many fanout. .IP \(bu 2 Substitution of a digipeated alias with the interface's callsign (typically used to substitute .BI RELAY, .BI WIDE or .BI TRACE aliases). .IP \(bu 2 .BI "WIDEn-n" flooding algorithim. .IP \(bu 2 .BI "TRACEn-n" route recording. .IP \(bu 2 .I Mic-Encoder(tm) support, including SSID-based digipeating, decompression of packets into the conventional APRS MIM format. (The Mic-Encoder compression is also used by other products such as the Kenwood TH-D7A and D700, and TAPR PIC-Encoder). .IP \(bu 2 TheNet X1J4 node beacon text translation (removal of the \(lqTheNet X1J4 (alias)\(rq prefix from the btext). .PP .SH "GENERAL OPTIONS" .TP 10 .BI "\-v \--verbose" Produce verbose debugging output. .TP 10 .BI "\-T \--testing" Test mode: listen to my packets too. This mode is useful for off-air experimentation and configuration testing. Do not use it on-air. .TP 10 .BI "\-D \--kill_dupes" Suppress Duplicate packets. Remembers duplicate packets for the number of seconds given by the -k option and will not repeat them more than once. This reduces conjestion caused when several digipeaters that share a common flooding alias (e.g. WIDE) have overlapping footprints, causing geometric duplication of packets addressed via \(lqWIDE,WIDE\(rq for example. .TP 10 .BI "\-L \--kill_loops" Suppress Looping packets. Similar in function to duplicate packet suppression, but looks back through the list of already digipeated callsigns in the packet's digipeat list and kills any packets that list a callsign belonging to this .I aprsdigi. Note that only real callsigns are compared. Generic flooding aliases are not. Therefore, loop detection is only useful when callsign substitution is used. .TP 10 .BI "\-V \--version" Print program version and exit. .TP 10 .BI "\-n|s|e|w \--north|south|east|west" Set North|South|East|West SSID directional path. .TP 10 .BI "\-d \--digipath" Set SSID omnidirectional next-hops when operating in a non flooding network (e.g. when WIDEn-n is not an option). .TP 10 .BI "\-f \--flood" Set flooding alias. Use \(lq-f WIDE\(rq to enable WIDEn-n flooding. Use -f multiple times to define several flooding aliases. .TP 10 .BI "\-F \--trace" Set flooding trace callsign. Use \(lq-F TRACE\(rq to enable TRACE and TRACEn-n flooding. Use -F multiple times to define several trace aliases. .TP 10 .BI "\-k \--keep secs" Remember old packets for this long for duplicate packet detection. Default is 28 seconds. .TP 10 .BI "\-l \--logfile file" Log digipeated packets to this file. .SH "PER-INTERFACE OPTIONS" Put these options .I before each .BI "\-p \--interface" to set new values as needed. The values you set are remembered for subsequent .BI "\-p's" so options you want to set for all interfaces need only be specified once, before the first .BI "\-p." But you have to remember to unset an option if you don't want it to apply to subsequent interfaces. .TP 10 .BI "\-C (-c) \--[no]subst_mycall" Do (not) perform callsign substitution. When enabled, aliases are replaced with the interface's callsign when repeated. .TP 10 .BI "\-M (-m) \--[no]mice_xlate" Do (not) perform Mic-E to MIM translation. When enabled, compressed Mic-E reports are expanded into one MIM-style position report packet and optionally a second telemetry packet if telemetry was supplied in the Mic-E packet. .TP 10 .BI "\-X (-x) \--[no]x1j4_xlate" Do (not) perform X1J4 translation. When enabled, the leading \(lqTheNet X1J4 (alias)\(rq text is removed when digipeated. This allows non-compliant APRS implementations to detect an APRS position report in an X1J4 beacon. .TP 10 .BI "\-i \--idinterval secs" Seconds between ID transmissions. Set to 0 to disable IDs on this interface. Default is 570 (9 minutes 30 seconds). IDs are only sent if the interface transmitted anything since the last ID. ID packets are addressed to the \(lqID\(rq callsign, have no digipeat path, and list the callsign and aliases for the interface the ID is being transmitted on. .TP 10 .BI "\-t \--tag text" Text to append to received packets. Use .I "\-t -" to reset to empty. Use this, for example, when gatewaying Mic-E packets from a voice repeater to the APRS net frequency to indicate where the report originated. .TP 10 .B "\-3 \--3rdparty" Enable 3rd party tunneling. Packets tunneled .I to a 3rd party interface are sent with the unused digipeaters removed from the digipeater list. Packets tunneled .I from a 3rd party interface have the Source Path Header prepended to the packet payload prefixed by the "}" character. .TP 10 .B "\-0 \--no3rdparty" Enable transparent tunneling. No special tricks are done when sending to or receiving from a tunneled interface. If the interface does not natively support AX.25 addresses (from-call, to-call, and digipeater list), then the address header is prepended to the payload in "cooked" format. Likewise, a cooked prepended header is stripped from a cooked interface and put back in the AX.25 address when going from a non-AX.25 to AX.25 interface. .TP 10 .BI "\-o r \--norx" Disable receiving on the following interface(s). .TP 10 .BI "\-o R \--rx" Enable receiving on the following interface(s). .TP 10 .BI "\-o t \--notx" Disable transmitting on the following interface(s). .TP 10 .BI "\-o T \--tx" Enable transmitting on the following interface(s). .TP 10 .BI "\-o s \--notxsame" Disable retransmitting a received packet on the same interface. .TP 10 .BI "\-o S \--txsame" Enable retransmitting a received packet on the same interface. .TP 10 .BI "\-o d \--duplicate intf" Duplicate received packets without modification to the given interface (port). .TP 10 .BI "-p \--interface ax25:port:alias1,alias2,..." AX25 interface name (port) and optional list of aliases. The primary callsign is obtained from the interface's configuration. (See ifconfig(8)). .TP 10 .BI "-p \--interface udp:host/port/ttl:alias1,alias2,..." IP host name or address and list of aliases. IP addresses may be IPv4 unicast or multicast or IPv6 unicast. The primary callsign is obtained from the first alias. .TP 10 .BI "-p \--interface unix:filename:alias1,alias2,..." Unix file and list of aliases. Useful for debugging by setting up a simulated APRS network on one machine. You may want to make your FIFOs explicitly transmit- or receive-only to avoid confusion. The primary callsign is obtained from the first alias. .TP 10 .BI "\-B|b \--[no]bud" .I addr Is similar to a TNC-2's BUDLIST. Use .BI "\-B \--bud" to accept or .BI "\-b \--nobud" to ignore packets from a sender or group of senders. Budlists are attached to each interface and can be reset with .BI "\--bud \-" .br You can set up a global budlist once, or per-interface budlists. The format of .I addr varies based on the interface type: .HP .BI "\--bud ax25:callsign-ssid" matches only a given digipeater callsign and SSID. For example, \-B ax25:n0clu-14. .HP .BI "\--bud ax25:callsign" matches all SSIDs for the given callsign. For example \-B ax25:n0clu. .HP .BI "\--bud ip:hostname" matches one Internet host name (IPv6 or IPv4). For example \-B ip:n0clu.ampr.net .HP .BI "\--bud ip:address/maskbits" matches all IP addresses that have the given prefix. For example \--bud ip:44.0.0.0/8 matches the entire class-A network. \--bud ip:192.168.0.0/16 matches the entire class-B network. \--bud ip:fe80::201:3ff:fe9a:38c6 matches a single IPv6 host. \--bud ip:2002:905::/32 matches the 32-bit IPv6 prefix. .PP .SH "RUNTIME CONTROLS" .PP .I aprsdigi responds to the following signals: .TP 10 .B "SIGUSR1" Print cumulative statistics. For each port, the following counters are displayed: packets received and how many of those where ignored, duplicates, loops, mic-E formatted; packets transmitted and how many of those where conventional digipeats, flooding digipeats (WIDEn-n), SSID-based digipeats, and IDs. If a log file was specified with the .B "\-l \--logfile" option, then the statistics are written to that file. Otherwise they are written to stderr. .TP 10 .B "SIGUSR2" Prints the statistics and then resets all counters to zero. .PP All other normal termination signals cause final statistics to print before .I aprsdigi exits. .SH "SSID-BASED ROUTING" .PP SSID-based routing uses a non-zero sub-station ID in the destination callsign, an empty digipeater path to indicate that the APRS digipeater should repeat the packet after filling in an appropriate digipeater path. For example, a packet sent to \(lqT1QS4W-3\(rq would be repeated with a modifed destination of \(lqAPRS VIA WIDE3-3\(rq (in a network that supports WIDEn-n flooding). A packet sent to \(lqAPRS-11\(rq would be repeated to the West unproto path, as defined with the .B \--west option. A table of SSID values and their paths follows: .sp .nf SSID unproto path ---- ------------ 0 none 1 WIDE1-1 2 WIDE2-2 3 WIDE3-3 4 WIDE4-4 5 WIDE5-5 6 WIDE6-6 7 WIDE7-7 8 NORTH UNPROTO path 9 SOUTH UNPROTO path 10 EAST UNPROTO path 11 WEST UNPROTO path 12 NORTH UNPROTO path + WIDE 13 SOUTH UNPROTO path + WIDE 14 EAST UNPROTO path + WIDE 15 WEST UNPROTO path + WIDE .fi .sp SSID digipeating was first introduced with the Mic-Encoder but works with any destination callsign with a non-zero SSID. The theory behind destination SSID digipeating is described in more detail in the APRSdos README, MIC-E.TXT. Basically, the idea is to minimize packet lengths and to have the manager of the WIDE APRS digipeater determine the most appropriate directional digipeat paths, removing the burden from the mobile user. .PP .I Aprsdigi also fits into a non WIDEn-n network by using the same algorithm for selection of subset of digipeaters from a list supplied with the .B \--digipath option as the MIC-E. That is, SSIDs of 1, 2 or 3 select that number of digipeaters from the first three digipeaters in the .B \--digipath list. SSIDs of 4, 5, 6, or 7, start at the fourth digipeater in the list. .PP .SH "FLOODING ALIASES" APRS flooding (WIDEn-n) digipeating works by repeating any received packet whose next hop digipeater has a flooding alias (specified with the .B \--flood option), and the SSID is 1 or greater. The SSID is decremented by one, and the packet is repeated. Furthermore, to prevent broadcast storms, recently transmitted packets are remembered for a period of time specified by the .B \--keep option and are not repeated if they are heard within that time period. .PP Unlike conventional digipeating, in which the digipeater callsign/alias is flagged as \(lqrepeated\(rq, the flooding mode does not do this. Once the SSID decrements to zero, then a flooding alias is treated just like any other alias, and does get marked as repeated upon transmission. .PP .SH "TRACE and TRACEn-n ALIASES" \(lqFlooding\(rq Trace aliases (TRACEn-n; .B \--trace option) are treated like flooding aliases with the addition that, besides decrementing the SSID, the current interface's callsign is inserted in front of the trace alias, providing a record-route function. \(lqPlain\(rq trace aliases (TRACE; also .B \--trace option) are simply substituted in the conventional ( .B \--subst_mycall ) manner. .PP .SH "MULTI PORT OPERATION" In single port operation, there is only one interface specified with .BI "\--interface." All packets are received and some are retransmitted on the same interface, depending on whether they match the criteria for retransmission after translation of the digpeater path from one of the APRS-specific formats: .IP \(bu 2 Mic-E TO-call SSID-based route. .IP \(bu 2 WIDEn-n/TRACEn-n flooding. .PP or a conventional next-hop (non-repeated) digipeater matching the callsign or one of the aliases for the interface. .PP The decision to transmit is made by matching the next hop callsign/alias with the table of callsigns and aliases you supply to .BI "\--interface." .PP In multi-port operation, this same technique simply extends to several interfaces. Besides each interface's unique callsign, you can give the same alias to several interfaces. This results in a one-to-many fanout which might be useful for dual frequency operation such as a general use APRS net frequency and an event-specific frequency. .PP By using different flags for Mic-E expansions, etc. you can tailor these fanouts differently on each of these interfaces, perhaps keeping Mic-E packets compressed on one frequency while decompressing them on another. .SH DUPLICATING PACKETS The .B "\--dupe intf" option will duplicate a packet received on one interface to the interface name given. If you want to duplicate to several other interface, repeat .B "\--dupe intf" for each interface. The packet is duplicated verbatim as received. No callsign substitution, flooding or other processing or checking such as whether the packet still has any non-repeated digipeaters in the list is checked. This feature is meant to provide a means to simply repeat received packets verbatim, on an RF interface, for example, out an interface that might be an Ethernet, that has APRS client applications running on it (or .I aprsd listening on a UDP interface). Digipeating without the normal processing can be dangerous since the digipeater list is never used up. Because of this, packets received on a given interface will never be blindly duplicated back to the same interface, regardless of the option setting. .PP .SH TRACE vs. TRACEN-N .PP Note that TRACEn-n vs. plain TRACE do different things: TRACEn-n *inserts* calls into the digipath while decrementing ssid, e.g.: .nf RELAY*,TRACE3-3 RELAY,N2YGK-7*,TRACE3-2 RELAY,N2YGK-7,WB2ZII*,TRACE3-1 RELAY,N2YGK-7,WB2ZII,N2MH-15*,TRACE3 RELAY,N2YGK-7,WB2ZII,N2MH-15,WA2YSM-14* .fi .PP .SH KILLING LOOPING PACKETS .PP Kill looping packets (\--kill_loops option): .nf RELAY*,WIDE,WIDE,WIDE RELAY,N2YGK-7*,WIDE,WIDE RELAY,N2YGK-7,WIDE*,WIDE .fi Normally n2ygk-7 would respond to this, but, by finding one of mycall earlier in the path, I know to ignore it. .PP .SH EXAMPLES .PP Following is a sample invocation of .I aprsdigi running on two ports. This is a contrived example that tries to show all the features. Comments to the right describe each feature. .nf aprsdigi \\ --verbose \\ # verbose --north "N2YGK-2 WB2ZII WA2YSM-14" \\ # North digi path --south "N2YGK-3 WB2ZII WA2JNF-4" \\ # South ... --east "N2YGK-3 WB2ZII KD1LY" \\ # East ... --west "N2YGK-2 WB2ZII N2MH-15" \\ # West ... --flood "WIDE" \\ # WIDEn-n flooding --trace "TRACE" \\ # TRACEn-n tracing --kill_dupes \\ # kill dupes --kill_loops \\ # kill loops --mice_xlate \\ # do Mic-E translation --subst_mycall \\ # do callsign substituton --tag " via 147.06 (WB2ZII/R)" \\ # add this tag to rec'd pkts --nobud "ax25:NOCALL" \\ # ignore pkts from NOCALL --dupe udp:233.0.14.100 \\ # dupe everything heard --int ax25:sm0:RELAY,WIDE,TRACE \\ # ax25 soundmodem intf --nomice_xlate \\ # turn off Mic-E translation --x1j4_xlate \\ # do X1J4 translation --nosubst_mycall \\ # turn off callsign subst. --tag - \\ # clear the tag --int ax25:ax0:RELAY,WIDE,FOO,TRACE \\ # ax25 ax0 intf. --bud - \\ # clear the budlist --bud ip:128.59.39.150/32 \\ # allow only from this IP host --int udp:233.0.14.99/12345/16:N2YGK-4,RELAY,WIDE,TRACE \\ # multicast --int udp:233.0.14.100/12345/16:N2YGK-5 # to this mcast group opening UDP socket on 233.0.14.99/12345/16 UDP address info: family 2 type 2 proto 17 next 0x0 Linux APRS(tm) digipeater Copyright (c) 1996,1997,1999,2001,2002,2003 Alan Crosswell, n2ygk@weca.org Version: aprsdigi aprsdigi-2.4.3 This is free software covered under the GNU Public License. There is no warranty. See the file COPYING for details. # configuration: budlist 1 deny NOCALL/48 budlist 2 permit 128.59.39.150/32 interface ax25:sm0 callsign N2YGK-2 alias RELAY alias WIDE alias TRACE option SUBST_MYCALL on option MICE_XLATE on option X1J4_XLATE off option I_TX on option I_RX on option I_TXSAME on option idinterval 570 #(09:30) option tag via 147.06 (WB2ZII/R) budlist 1 interface ax25:ax0 callsign N2YGK-3 alias RELAY alias WIDE alias FOO option SUBST_MYCALL off option MICE_XLATE off option X1J4_XLATE on option I_TX on option I_RX on option I_TXSAME on option idinterval 570 #(09:30) option tag #(none) budlist 2 interface udp:233.0.14.99 callsign N2YGK-4 alias RELAY alias WIDE alias FOO option SUBST_MYCALL off option MICE_XLATE off option X1J4_XLATE on option I_TX on option I_RX on option I_TXSAME off option idinterval 570 #(09:30) option tag #(none) budlist 2 # end of configuration My callsigns and aliases (routing table): Callsign Interfaces... N2YGK-2 sm0 RELAY sm0 ax0 233.0.14.99 WIDEn-n sm0 ax0 233.0.14.99 TRACEn-n sm0 N2YGK-3 ax0 FOO ax0 233.0.14.99 N2YGK-4 233.0.14.99 SSID-based directional routing: N: N2YGK-2 WB2ZII WA2YSM-14 S: N2YGK-3 WB2ZII WA2JNF-4 E: N2YGK-3 WB2ZII KD1LY W: N2YGK-2 WB2ZII N2MH-15 keep dupes for: 28 seconds log file: (none) kill dupes: ON loops: ON testing: OFF .fi .SH BUGS .I Aprsdigi should not be confused with a Wes Johnson's DOS program of the same name. This code has most recently been tested with the Linux 2.4.20 kernel under Red Hat Fedora Core 1. The command line syntax is ugly and will eventually be replaced by a configuration file. Short options are deprecated and will dissappear in a future release. Please use long options. .PP .SH FILES .BR /etc/ax25/axports .SH "SEE ALSO" .BR call (1), .BR listen (1), .BR beacon (1), .BR ax25 (4), .BR kissattach (8), .BR ifconfig (8), .BR aprsmon (1), .BR http://www.tapr.org .SH AUTHORS .nf Alan Crosswell, n2ygk@weca.org .br APRS and the Mic-Encoder are Trademarks of APRS Engineering LLC. .fi aprsdigi-2.4.4/aprsmon.80000644000076400007640000001050110016741515010561 .TH APRSMON 8 "9 February 1999" Linux "Linux Programmer's Manual" .SH NAME aprsmon \- monitor APRS AX.25 traffic for javAPRS .SH SYNOPSIS .B aprsmon [-a] [-m] [-r] [-k minutes] [-p port] [-t title] [-i infofile] .SH DESCRIPTION .LP .B Aprsmon uses SOCK_PACKET facilities to provide a network monitor of all AX.25 UI text traffic heard by the system. It is based on listen(1). .LP .B Aprsmon collects (-m) or displays standard AX.25 UI text frames in a format similar to that output by a standard TNC in "Monitor ON" mode and is intended to be used with programs like javAPRS which wish to see a TNC data stream over a TCP connection. When the .B aprsmon master has been running for a while and a new .B aprsmon slave starts up, first all saved up reports are sent, then a title line indicating the beginning of live data is sent, and new reports are sent as received. .LP Compressed position and telemetry reports as generated by the APRS Mic Encoder are translated into the conventional uncompressed APRS Micro-Interface-Module (MIM) telemtry format so that these stations are visible in javAPRS. Reports containing a TheNet X1J4 beacon header are also edited to strip off the header making these nodes visible in javAPRS as well. .LP .SH OPTIONS .TP 10 .BI \-a Allow for the monitoring of outgoing frames as well as incoming ones. .TP 10 .BI \-r Choose "raw" mode which allows non-printable data through. .TP 10 .BI "\-p port" Monitor only those frames received on a particular port, by default all AX.25 interfaces are monitored. .TP 10 .BI "-m" "Master" mode. Retain monitored data for the number of minutes specified with the .B -k option in a shared memory segment. .TP 10 .BI "-k minutes" Retain monitored packets going back the given number of minutes. Default is 30. .TP 10 .BI "-t title" Sets the .I javAPRS title string. Default is "Live data from Linux." .TP 10 .BI "-i infofile" .I Infofile is the path to the file that the aprsmon master writes the shared memory segment and semaphore id's into. Default is "/var/ax25/aprsmon.info." .SH "javAPRS CONFIGURATION" Set up one .I aprsmon master running on your system to collect historical data going back a while. You will probably want to set up an /etc/rc.d/init.d script for this. .sp .nf aprsmon -a -m& .fi .sp Add an entry into /etc/services with the port number you want javAPRS to connect on. For example: .sp .nf aprs 14439/tcp # APRS monitor on 144.39 .fi .sp Add an entry into /etc/inetd.conf for this service: .sp .nf aprs stream tcp nowait root /usr/sbin/aprsmon aprsmon -a .fi .sp To test, simply "telnet localhost aprs". To use with javAPRS, set, for example, .sp .nf .fi in your HTML file as described in the .B javAPRS documentation, and then use .B appletviewer to run javAPRS: .nf appletviewer mydemo.html .fi .sp .SH "Mic-E to MIM Translation" The Mic-E reduces the duration of packet noise on a voice frequency by encoding its data in a compressed form, some of which is binary. Some APRS-decoding software, notably javAPRS, is unable to deal with this data. To solve this problem .B aprsmon expands the Mic-E packet into one or two MIM packets as follows: .sp .nf @\fBddhhmm\fPz\fBDDMM.hhN/DDDMM.hhW$cse/spd/E\fP>mon/M\fBm\fP/\fBstatus\fP T#MIC,\fBaaabbbcccdddeeefffComments .fi .sp .TP 10 .BI ddhhmm is the UTC day and time the packet was received by the host running .B aprsmon. .TP 10 .BI DDMM.hhN is the latitude. .TP 10 .BI / is the symbol table selection (/ or \\). .TP 10 .BI DDDMM.hhW is the longitude. .TP 10 .BI $ is the symbol. .TP 10 .BI "cse,spd" are course and speed. .TP 10 .BI E is the type of Mic-Encoder: .IP .nf E - TAPR Mic-Encoder T - Kenwood TH-D7 .fi .RP .TP 10 .BI m is the status message number, and .TP 10 .BI status is the status message number expanded as follows: .IP .nf 0 - Off duty.. 1 - Enroute... 2 - In Service 3 - Returning. 4 - Committed. 5 - Special... 6 - PRIORITY.. 7 - EMERGENCY. .fi .RP .TP 10 .BI aaa,bbb,ccc,ddd,eee,fff are the values of the telemetry channels. .SH FILES .BR /etc/ax25/axports .BR /var/ax25/aprsmon.info .SH "SEE ALSO" .BR call (1), .BR listen (1), .BR beacon (1), .BR ax25 (4), .BR axattach (8), .BR http://www.bridge.net/~sdimse/javAPRS.html, .BR http://www.tapr.org, .BR http://www.aprs.net, .BR MIC-E.TXT, TELEMTRY.TXT, PROTOCOL.TXT .SH AUTHOR .nf Alan Crosswell, n2ygk@weca.org .fi aprsdigi-2.4.4/fiforead.80000644000076400007640000000053010016741515010662 .TH FIFOREAD 8 "4 April 2003" .SH NAME fiforead \- test program for aprsdigi. .SH SYNOPSIS .nf .BI "fiforead " filename .fi .SH DESCRIPTION .PP .I Fiforead is useful for testing aprsdigi. Unix datagrams received from .BI "aprsdigi \-p:unix:" filename,callsign,alias... are written to stdout. .SH AUTHOR .nf Alan Crosswell, n2ygk@weca.org .fi aprsdigi-2.4.4/fifowrite.80000644000076400007640000000066410016741515011111 .TH FIFOWRITE 8 "4 April 2003" .SH NAME fifowrite \- test program for aprsdigi. .SH SYNOPSIS .nf .BI "fifowrite " filename .fi .SH DESCRIPTION .PP .I Fifowrite is useful for testing aprsdigi. Lines of text read from stdin are written as a Unix datagram to the fifo at .I filename which is expected to have been opened for reading by .BI "aprsdigi \-p unix:" filename,callsign,alias... .SH AUTHOR .nf Alan Crosswell, n2ygk@weca.org .fi aprsdigi-2.4.4/aprsdigi.html0000644000076400007640000005460710017140437011515 Content-type: text/html Manpage of APRSDIGI

APRSDIGI

Section: Maintenance Commands (8)
Updated: 25 February 2004
Index Return to Main Contents
 

NAME

aprsdigi - APRS() digipeater  

SYNOPSIS

aprsdigi options
 

DESCRIPTION

Aprsdigi is a specialized Amateur Packet Radio (AX.25) UI-frame digipeater for the Automatic Position Reporting Systems, APRS(tm). It uses the Linux kernel AX.25 network stack as well as the SOCK_PACKET facility to listen for packets on one or more radio interfaces (ports) and repeat those packets -- with several possible modifications -- on the same or other interfaces. Aprsdigi can also use the Internet to tunnel connections among other APRS digipeaters and nodes using IPv4 or IPv6 UDP unicast or multicast.

Aprsdigi implements conventional packet radio AX.25 digipeating, in which a packet is digipeated if the next hop (non-repeated) digipeater ("via") callsign matches the AX.25 port's callsign and sub-station ID (SSID) or an alias callsign and SSID.

There are a number of extensions to conventional digipeating that have been proposed for use in the APRS community. Some of these features have been adopted by Terminal Node Controller (TNC) manufacturers, notably Paccomm and Kantronics. Aprsdigi implements most if not all of the commercialy adopted and proposed features. See the APRS 1.0 Protocol Specification at www.tapr.org for protocol documentation. Aprsdigi attempts to minimally comply with the protocol specification as well as support experimental APRS features. Specific features implemented include:

*
Single-interface conventional UI-frame digipeating.
*
Cross-interface digipeating (also known as bridging, routing or gatewaying) and one-to-many fanout.
*
Substitution of a digipeated alias with the interface's callsign (typically used to substitute RELAY, WIDE or TRACE aliases).
*
WIDEn-n flooding algorithim.
*
TRACEn-n route recording.
*
Mic-Encoder(tm) support, including SSID-based digipeating, decompression of packets into the conventional APRS MIM format. (The Mic-Encoder compression is also used by other products such as the Kenwood TH-D7A and D700, and TAPR PIC-Encoder).
*
TheNet X1J4 node beacon text translation (removal of the lqTheNet X1J4 (alias)rq prefix from the btext).

 

GENERAL OPTIONS

-v --verbose
Produce verbose debugging output.
-T --testing
Test mode: listen to my packets too. This mode is useful for off-air experimentation and configuration testing. Do not use it on-air.
-D --kill_dupes
Suppress Duplicate packets. Remembers duplicate packets for the number of seconds given by the -k option and will not repeat them more than once. This reduces conjestion caused when several digipeaters that share a common flooding alias (e.g. WIDE) have overlapping footprints, causing geometric duplication of packets addressed via lqWIDE,WIDErq for example.
-L --kill_loops
Suppress Looping packets. Similar in function to duplicate packet suppression, but looks back through the list of already digipeated callsigns in the packet's digipeat list and kills any packets that list a callsign belonging to this aprsdigi. Note that only real callsigns are compared. Generic flooding aliases are not. Therefore, loop detection is only useful when callsign substitution is used.
-V --version
Print program version and exit.
-n|s|e|w --north|south|east|west
Set North|South|East|West SSID directional path.
-d --digipath
Set SSID omnidirectional next-hops when operating in a non flooding network (e.g. when WIDEn-n is not an option).
-f --flood
Set flooding alias. Use lq-f WIDErq to enable WIDEn-n flooding. Use -f multiple times to define several flooding aliases.
-F --trace
Set flooding trace callsign. Use lq-F TRACErq to enable TRACE and TRACEn-n flooding. Use -F multiple times to define several trace aliases.
-k --keep secs
Remember old packets for this long for duplicate packet detection. Default is 28 seconds.
-l --logfile file
Log digipeated packets to this file.
 

PER-INTERFACE OPTIONS

Put these options before each -p --interface to set new values as needed. The values you set are remembered for subsequent -p's so options you want to set for all interfaces need only be specified once, before the first -p. But you have to remember to unset an option if you don't want it to apply to subsequent interfaces.
-C (-c) --[no]subst_mycall
Do (not) perform callsign substitution. When enabled, aliases are replaced with the interface's callsign when repeated.
-M (-m) --[no]mice_xlate
Do (not) perform Mic-E to MIM translation. When enabled, compressed Mic-E reports are expanded into one MIM-style position report packet and optionally a second telemetry packet if telemetry was supplied in the Mic-E packet.
-X (-x) --[no]x1j4_xlate
Do (not) perform X1J4 translation. When enabled, the leading lqTheNet X1J4 (alias)rq text is removed when digipeated. This allows non-compliant APRS implementations to detect an APRS position report in an X1J4 beacon.
-i --idinterval secs
Seconds between ID transmissions. Set to 0 to disable IDs on this interface. Default is 570 (9 minutes 30 seconds). IDs are only sent if the interface transmitted anything since the last ID. ID packets are addressed to the lqIDrq callsign, have no digipeat path, and list the callsign and aliases for the interface the ID is being transmitted on.
-t --tag text
Text to append to received packets. Use -t - to reset to empty. Use this, for example, when gatewaying Mic-E packets from a voice repeater to the APRS net frequency to indicate where the report originated.
-3 --3rdparty
Enable 3rd party tunneling. Packets tunneled to a 3rd party interface are sent with the unused digipeaters removed from the digipeater list. Packets tunneled from a 3rd party interface have the Source Path Header prepended to the packet payload prefixed by the "}" character.
-0 --no3rdparty
Enable transparent tunneling. No special tricks are done when sending to or receiving from a tunneled interface. If the interface does not natively support AX.25 addresses (from-call, to-call, and digipeater list), then the address header is prepended to the payload in "cooked" format. Likewise, a cooked prepended header is stripped from a cooked interface and put back in the AX.25 address when going from a non-AX.25 to AX.25 interface.
-o r --norx
Disable receiving on the following interface(s).
-o R --rx
Enable receiving on the following interface(s).
-o t --notx
Disable transmitting on the following interface(s).
-o T --tx
Enable transmitting on the following interface(s).
-o s --notxsame
Disable retransmitting a received packet on the same interface.
-o S --txsame
Enable retransmitting a received packet on the same interface.
-o d --duplicate intf
Duplicate received packets without modification to the given interface (port).
-p --interface ax25:port:alias1,alias2,...
AX25 interface name (port) and optional list of aliases. The primary callsign is obtained from the interface's configuration. (See ifconfig(8)).
-p --interface udp:host/port/ttl:alias1,alias2,...
IP host name or address and list of aliases. IP addresses may be IPv4 unicast or multicast or IPv6 unicast. The primary callsign is obtained from the first alias.
-p --interface unix:filename:alias1,alias2,...
Unix file and list of aliases. Useful for debugging by setting up a simulated APRS network on one machine. You may want to make your FIFOs explicitly transmit- or receive-only to avoid confusion. The primary callsign is obtained from the first alias.
-B|b --[no]bud
addr Is similar to a TNC-2's BUDLIST. Use -B --bud to accept or -b --nobud to ignore packets from a sender or group of senders. Budlists are attached to each interface and can be reset with --bud -
You can set up a global budlist once, or per-interface budlists. The format of addr varies based on the interface type:
--bud ax25:callsign-ssid
matches only a given digipeater callsign and SSID. For example, -B ax25:n0clu-14.
--bud ax25:callsign
matches all SSIDs for the given callsign. For example -B ax25:n0clu.
--bud ip:hostname
matches one Internet host name (IPv6 or IPv4). For example -B ip:n0clu.ampr.net
--bud ip:address/maskbits
matches all IP addresses that have the given prefix. For example --bud ip:44.0.0.0/8 matches the entire class-A network. --bud ip:192.168.0.0/16 matches the entire class-B network. --bud ip:fe80::201:3ff:fe9a:38c6 matches a single IPv6 host. --bud ip:2002:905::/32 matches the 32-bit IPv6 prefix.

 

RUNTIME CONTROLS

aprsdigi responds to the following signals:

SIGUSR1
Print cumulative statistics. For each port, the following counters are displayed: packets received and how many of those where ignored, duplicates, loops, mic-E formatted; packets transmitted and how many of those where conventional digipeats, flooding digipeats (WIDEn-n), SSID-based digipeats, and IDs. If a log file was specified with the -l --logfile option, then the statistics are written to that file. Otherwise they are written to stderr.

SIGUSR2
Prints the statistics and then resets all counters to zero.

All other normal termination signals cause final statistics to print before aprsdigi exits.

 

SSID-BASED ROUTING

SSID-based routing uses a non-zero sub-station ID in the destination callsign, an empty digipeater path to indicate that the APRS digipeater should repeat the packet after filling in an appropriate digipeater path. For example, a packet sent to lqT1QS4W-3rq would be repeated with a modifed destination of lqAPRS VIA WIDE3-3rq (in a network that supports WIDEn-n flooding). A packet sent to lqAPRS-11rq would be repeated to the West unproto path, as defined with the --west option. A table of SSID values and their paths follows: 

SSID unproto path
---- ------------
0    none 
1    WIDE1-1
2    WIDE2-2
3    WIDE3-3
4    WIDE4-4
5    WIDE5-5
6    WIDE6-6
7    WIDE7-7
8    NORTH UNPROTO path
9    SOUTH UNPROTO path
10   EAST  UNPROTO path
11   WEST  UNPROTO path
12   NORTH UNPROTO path + WIDE
13   SOUTH UNPROTO path + WIDE
14   EAST  UNPROTO path + WIDE
15   WEST  UNPROTO path + WIDE

SSID digipeating was first introduced with the Mic-Encoder but works with any destination callsign with a non-zero SSID. The theory behind destination SSID digipeating is described in more detail in the APRSdos README, MIC-E.TXT. Basically, the idea is to minimize packet lengths and to have the manager of the WIDE APRS digipeater determine the most appropriate directional digipeat paths, removing the burden from the mobile user.

Aprsdigi also fits into a non WIDEn-n network by using the same algorithm for selection of subset of digipeaters from a list supplied with the --digipath option as the MIC-E. That is, SSIDs of 1, 2 or 3 select that number of digipeaters from the first three digipeaters in the --digipath list. SSIDs of 4, 5, 6, or 7, start at the fourth digipeater in the list.

 

FLOODING ALIASES

APRS flooding (WIDEn-n) digipeating works by repeating any received packet whose next hop digipeater has a flooding alias (specified with the --flood option), and the SSID is 1 or greater. The SSID is decremented by one, and the packet is repeated. Furthermore, to prevent broadcast storms, recently transmitted packets are remembered for a period of time specified by the --keep option and are not repeated if they are heard within that time period.

Unlike conventional digipeating, in which the digipeater callsign/alias is flagged as lqrepeatedrq, the flooding mode does not do this. Once the SSID decrements to zero, then a flooding alias is treated just like any other alias, and does get marked as repeated upon transmission.

 

TRACE and TRACEn-n ALIASES

lqFloodingrq Trace aliases (TRACEn-n; --trace option) are treated like flooding aliases with the addition that, besides decrementing the SSID, the current interface's callsign is inserted in front of the trace alias, providing a record-route function. lqPlainrq trace aliases (TRACE; also --trace option) are simply substituted in the conventional ( --subst_mycall ) manner.

 

MULTI PORT OPERATION

In single port operation, there is only one interface specified with --interface. All packets are received and some are retransmitted on the same interface, depending on whether they match the criteria for retransmission after translation of the digpeater path from one of the APRS-specific formats:
*
Mic-E TO-call SSID-based route.
*
WIDEn-n/TRACEn-n flooding.

or a conventional next-hop (non-repeated) digipeater matching the callsign or one of the aliases for the interface.

The decision to transmit is made by matching the next hop callsign/alias with the table of callsigns and aliases you supply to --interface.

In multi-port operation, this same technique simply extends to several interfaces. Besides each interface's unique callsign, you can give the same alias to several interfaces. This results in a one-to-many fanout which might be useful for dual frequency operation such as a general use APRS net frequency and an event-specific frequency.

By using different flags for Mic-E expansions, etc. you can tailor these fanouts differently on each of these interfaces, perhaps keeping Mic-E packets compressed on one frequency while decompressing them on another.  

DUPLICATING PACKETS

The --dupe intf option will duplicate a packet received on one interface to the interface name given. If you want to duplicate to several other interface, repeat --dupe intf for each interface. The packet is duplicated verbatim as received. No callsign substitution, flooding or other processing or checking such as whether the packet still has any non-repeated digipeaters in the list is checked. This feature is meant to provide a means to simply repeat received packets verbatim, on an RF interface, for example, out an interface that might be an Ethernet, that has APRS client applications running on it (or aprsd listening on a UDP interface). Digipeating without the normal processing can be dangerous since the digipeater list is never used up. Because of this, packets received on a given interface will never be blindly duplicated back to the same interface, regardless of the option setting.

 

TRACE vs. TRACEN-N

Note that TRACEn-n vs. plain TRACE do different things: TRACEn-n *inserts* calls into the digipath while decrementing ssid, e.g.: 

        RELAY*,TRACE3-3
        RELAY,N2YGK-7*,TRACE3-2
        RELAY,N2YGK-7,WB2ZII*,TRACE3-1
        RELAY,N2YGK-7,WB2ZII,N2MH-15*,TRACE3
        RELAY,N2YGK-7,WB2ZII,N2MH-15,WA2YSM-14*

 

KILLING LOOPING PACKETS

Kill looping packets (--kill_loops option): 

        RELAY*,WIDE,WIDE,WIDE
        RELAY,N2YGK-7*,WIDE,WIDE
        RELAY,N2YGK-7,WIDE*,WIDE
Normally n2ygk-7 would respond to this, but, by finding one of mycall earlier in the path, I know to ignore it.

 

EXAMPLES

Following is a sample invocation of aprsdigi running on two ports. This is a contrived example that tries to show all the features. Comments to the right describe each feature. 

aprsdigi \
   --verbose \                                 # verbose
   --north "N2YGK-2 WB2ZII WA2YSM-14" \        # North digi path
   --south "N2YGK-3 WB2ZII WA2JNF-4" \         # South ...
   --east "N2YGK-3 WB2ZII KD1LY" \             # East ...
   --west "N2YGK-2 WB2ZII N2MH-15" \           # West ...
   --flood "WIDE" \                            # WIDEn-n flooding
   --trace "TRACE" \                           # TRACEn-n tracing
   --kill_dupes \                              # kill dupes
   --kill_loops \                              # kill loops
   --mice_xlate \                              # do Mic-E translation
   --subst_mycall \                            # do callsign substituton
   --tag " via 147.06 (WB2ZII/R)" \            # add this tag to rec'd pkts
   --nobud "ax25:NOCALL" \                     # ignore pkts from NOCALL
   --dupe udp:233.0.14.100 \                    # dupe everything heard 
   --int ax25:sm0:RELAY,WIDE,TRACE \           # ax25 soundmodem intf
   --nomice_xlate \                            # turn off Mic-E translation
   --x1j4_xlate \                              # do X1J4 translation
   --nosubst_mycall \                          # turn off callsign subst.
   --tag - \                                   # clear the tag
   --int ax25:ax0:RELAY,WIDE,FOO,TRACE \       # ax25 ax0 intf.
   --bud - \                                   # clear the budlist
   --bud ip:128.59.39.150/32 \                 # allow only from this IP host
   --int udp:233.0.14.99/12345/16:N2YGK-4,RELAY,WIDE,TRACE \ # multicast 
   --int udp:233.0.14.100/12345/16:N2YGK-5      # to this mcast group

opening UDP socket on 233.0.14.99/12345/16
UDP address info: family 2 type 2 proto 17 next 0x0
Linux APRS(tm) digipeater
Copyright (c) 1996,1997,1999,2001,2002,2003 Alan Crosswell, n2ygk@weca.org
Version: aprsdigi aprsdigi-2.4.3
This is free software covered under the GNU Public License.
There is no warranty.  See the file COPYING for details.

# configuration:
 budlist 1 deny NOCALL/48
 budlist 2 permit 128.59.39.150/32
interface ax25:sm0
 callsign N2YGK-2
 alias RELAY
 alias WIDE
 alias TRACE
 option SUBST_MYCALL on
 option MICE_XLATE on
 option X1J4_XLATE off
 option I_TX on
 option I_RX on
 option I_TXSAME on
 option idinterval 570 #(09:30)
 option tag  via 147.06 (WB2ZII/R)
 budlist 1
interface ax25:ax0
 callsign N2YGK-3
 alias RELAY
 alias WIDE
 alias FOO
 option SUBST_MYCALL off
 option MICE_XLATE off
 option X1J4_XLATE on
 option I_TX on
 option I_RX on
 option I_TXSAME on
 option idinterval 570 #(09:30)
 option tag #(none)
 budlist 2
interface udp:233.0.14.99
 callsign N2YGK-4
 alias RELAY
 alias WIDE
 alias FOO
 option SUBST_MYCALL off
 option MICE_XLATE off
 option X1J4_XLATE on
 option I_TX on
 option I_RX on
 option I_TXSAME off
 option idinterval 570 #(09:30)
 option tag #(none)
 budlist 2
# end of configuration

My callsigns and aliases (routing table):
Callsign  Interfaces...
N2YGK-2   sm0 
RELAY     sm0       ax0       233.0.14.99
WIDEn-n   sm0       ax0       233.0.14.99
TRACEn-n  sm0 
N2YGK-3   ax0 
FOO       ax0       233.0.14.99
N2YGK-4   233.0.14.99
SSID-based directional routing:

N:        N2YGK-2   WB2ZII    WA2YSM-14 
S:        N2YGK-3   WB2ZII    WA2JNF-4  
E:        N2YGK-3   WB2ZII    KD1LY     
W:        N2YGK-2   WB2ZII    N2MH-15   
keep dupes for: 28 seconds
log file: (none)
kill dupes: ON loops: ON  testing: OFF
 

BUGS

Aprsdigi should not be confused with a Wes Johnson's DOS program of the same name. This code has most recently been tested with the Linux 2.4.20 kernel under Red Hat Fedora Core 1. The command line syntax is ugly and will eventually be replaced by a configuration file. Short options are deprecated and will dissappear in a future release. Please use long options.

 

FILES

/etc/ax25/axports  

SEE ALSO

call(1), listen(1), beacon(1), ax25(4), kissattach(8), ifconfig(8), aprsmon(1), http://www.tapr.org  

AUTHORS

Alan Crosswell, n2ygk@weca.org


APRS and the Mic-Encoder are Trademarks of APRS Engineering LLC.

 

Index

NAME
SYNOPSIS
DESCRIPTION
GENERAL OPTIONS
PER-INTERFACE OPTIONS
RUNTIME CONTROLS
SSID-BASED ROUTING
FLOODING ALIASES
TRACE and TRACEn-n ALIASES
MULTI PORT OPERATION
DUPLICATING PACKETS
TRACE vs. TRACEN-N
KILLING LOOPING PACKETS
EXAMPLES
BUGS
FILES
SEE ALSO
AUTHORS
This document was created by man2html, using the manual pages.
Time: 15:37:03 GMT, February 25, 2004 aprsdigi-2.4.4/aprsmon.html0000644000076400007640000001410510016741515011362 



       aprsmon - monitor APRS AX.25 traffic for javAPRS





SYNOPSIS
       aprsmon  [-a]  [-m] [-r] [-k minutes] [-p port] [-t title]
       [-i infofile]





DESCRIPTION
       Aprsmon uses SOCK_PACKET facilities to provide  a  network
       monitor  of all AX.25 UI text traffic heard by the system.
       It is based on listen(1).

       Aprsmon collects (-m) or displays standard AX.25  UI  text
       frames  in  a  format similar to that output by a standard
       TNC in "Monitor ON" mode and is intended to be  used  with
       programs  like javAPRS which wish to see a TNC data stream
       over a TCP connection.  When the aprsmon master  has  been
       running  for  a  while  and a new aprsmon slave starts up,
       first all saved up reports are sent,  then  a  title  line
       indicating  the  beginning  of  live data is sent, and new
       reports are sent as received.

       Compressed position and telemetry reports as generated  by
       the  APRS Mic Encoder are translated into the conventional
       uncompressed APRS  Micro-Interface-Module  (MIM)  telemtry
       format  so  that  these  stations  are visible in javAPRS.
       Reports containing a TheNet X1J4 beacon  header  are  also
       edited  to strip off the header making these nodes visible
       in javAPRS as well.






OPTIONS
       -a        Allow for the monitoring of outgoing  frames  as
                 well as incoming ones.

       -r        Choose  "raw"  mode  which  allows non-printable
                 data through.

       -p port   Monitor only those frames received on a particu-
                 lar  port,  by  default all AX.25 interfaces are
                 monitored.

       -m        "Master" mode.  Retain monitored  data  for  the
                 number  of  minutes specified with the -k option
                 in a shared memory segment.

       -k minutes
                 Retain monitored packets going  back  the  given
                 number of minutes.  Default is 30.

       -t title  Sets the javAPRS title string.  Default is "Live
                 data from Linux."

                 Infofile is  the  path  to  the  file  that  the
                 aprsmon  master writes the shared memory segment
                 and   semaphore   id's   into.     Default    is
                 "/var/ax25/aprsmon.info."





javAPRS CONFIGURATION
       Set  up  one aprsmon master running on your system to col-
       lect historical data going back a while.  You will  proba-
       bly want to set up an /etc/rc.d/init.d script for this.

       aprsmon -a -m&

       Add  an  entry into /etc/services with the port number you
       want javAPRS to connect on.  For example:

       aprs      14439/tcp # APRS monitor on 144.39

       Add an entry into /etc/inetd.conf for this service:

       aprs stream tcp nowait root /usr/sbin/aprsmon aprsmon -a

       To test, simply "telnet  localhost  aprs".   To  use  with
       javAPRS, set, for example,

       <PARAM name = "dataFile1" value = "netc:14439:localhost">
       in  your  HTML file as described in the javAPRS documenta-
       tion, and then use appletviewer to run javAPRS:
       appletviewer mydemo.html






Mic-E to MIM Translation
       The Mic-E reduces the duration of packet noise on a  voice
       frequency  by encoding its data in a compressed form, some
       of which is binary.  Some APRS-decoding software,  notably
       javAPRS,  is unable to deal with this data.  To solve this
       problem aprsmon expands the Mic-E packet into one  or  two
       MIM packets as follows:

       @ddhhmmzDDMM.hhN/DDDMM.hhW$cse/spd/E>mon/Mm/status
       T#MIC,aaabbbcccdddeeefffComments


       ddhhmm    is  the UTC day and time the packet was received
                 by the host running aprsmon.

       DDMM.hhN  is the latitude.

       /         is the symbol table selection (/ or \).

       DDDMM.hhW is the longitude.

       $         is the symbol.

       E         is the type of Mic-Encoder:

                 E - TAPR Mic-Encoder
                 T - Kenwood TH-D7

       m         is the status message number, and

       status    is the status message number  expanded  as  fol-
                 lows:

                 0 -  Off duty..
                 1 -  Enroute...
                 2 -  In Service
                 3 -  Returning.
                 4 -  Committed.
                 5 -  Special...
                 6 -  PRIORITY..
                 7 -  EMERGENCY.

       aaa,bbb,ccc,ddd,eee,fff
                 are the values of the telemetry channels.





FILES
       /etc/ax25/axports /var/ax25/aprsmon.info





SEE ALSO
       call(1),   listen(1),   beacon(1),  ax25(4),  axattach(8),
       http://www.bridge.net/~sdimse/javAPRS.html,
       http://www.tapr.org,       http://www.aprs.net,       MIC-
       E.TXT,TELEMTRY.TXT,PROTOCOL.TXT





AUTHOR
       Alan Crosswell, n2ygk@weca.org
aprsdigi-2.4.4/fiforead.html0000644000076400007640000000221510016741515011461 Content-type: text/html Manpage of FIFOREAD

FIFOREAD

Section: Maintenance Commands (8)
Updated: 4 April 2003
Index Return to Main Contents
 

NAME

fiforead - test program for aprsdigi.  

SYNOPSIS

fiforead filename
 

DESCRIPTION

Fiforead is useful for testing aprsdigi. Unix datagrams received from aprsdigi -p:unix:filename,callsign,alias... are written to stdout.  

AUTHOR

Alan Crosswell, n2ygk@weca.org

 

Index

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
This document was created by man2html, using the manual pages.
Time: 22:03:18 GMT, April 05, 2003 aprsdigi-2.4.4/fifowrite.html0000644000076400007640000000235710016741515011707 Content-type: text/html Manpage of FIFOWRITE

FIFOWRITE

Section: Maintenance Commands (8)
Updated: 4 April 2003
Index Return to Main Contents
 

NAME

fifowrite - test program for aprsdigi.  

SYNOPSIS

fifowrite filename
 

DESCRIPTION

Fifowrite is useful for testing aprsdigi. Lines of text read from stdin are written as a Unix datagram to the fifo at filename which is expected to have been opened for reading by aprsdigi -p unix:filename,callsign,alias...  

AUTHOR

Alan Crosswell, n2ygk@weca.org

 

Index

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
This document was created by man2html, using the manual pages.
Time: 22:03:18 GMT, April 05, 2003 aprsdigi-2.4.4/aprsdigi.spec0000644000076400007640000000246210016741515011476 Summary: AX.25 Automatic Position Reporting System aprsdigi and aprsmon Name: aprsdigi Version: 2.4.1 Release: 1 Copyright: GPL Group: Utilities/System Packager: Alan Crosswell Buildroot: /var/tmp/aprsdigi Source: ftp://ftp.tapr.org/aprssig/linux/aprsdigi-%{PACKAGE_VERSION}.tar.gz Url: http://www.cloud9.net/~alan/ham/aprsdigi.html Requires: libax25 >= 0.0.7 %changelog * Fri Dec 28 2001 Alan Crosswell - Try to make a new RPM, but first need to find RPMs for libax25. * Mon Apr 05 1999 Alan Crosswell - Initial rpm %description Aprsdigi is a specialized Amateur Packet Radio (AX.25) UI-frame digipeater for the Automatic Position Reporting System, APRS(tm). Aprsmon collects and displays standard AX.25 UI text frames in a format similar to that output by a standard TNC in "Monitor ON" mode and is intended to be used with programs like javAPRS which wish to see a TNC data stream over a TCP connection. %prep %setup -q -n aprsdigi-2.4.1 %build ./configure make %install rm -rf $RPM_BUILD_ROOT make DESTDIR=$RPM_BUILD_ROOT install %clean rm -rf $RPM_BUILD_ROOT %files %doc README %doc INSTALL %doc COPYING %doc NEWS %doc ChangeLog %doc TODO %doc AUTHORS %doc aprsdigi.lsm /usr/sbin/aprsdigi /usr/sbin/aprsmon /usr/man/man8/aprsdigi.8 /usr/man/man8/aprsmon.8 aprsdigi-2.4.4/aprsdigi.lsm0000644000076400007640000000141110016741515011330 Begin3 Title: aprsdigi Version: 2.4.1 Entered-date: 28 Dec 01 Description: Aprsdigi is a specialized Amateur Packet Radio (AX.25) UI-frame digipeater for the Automatic Position Reporting System, APRS(tm). Aprsmon collects and displays standard AX.25 UI text frames in a format similar to that output by a standard TNC in "Monitor ON" mode and is intended to be used with programs like javAPRS which wish to see a TNC data stream over a TCP connection. Keywords: AX.25 APRS Amateur Radio Author: n2ygk@weca.org (Alan Crosswell) Maintained-by: n2ygk@weca.org (Alan Crosswell) Primary-site: http://www.cloud9.net/~alan/ham/aprsdigi-2.4.1.tar.gz Alternate-site: ftp://ftp.tapr.org/aprssig/linux/aprsdigi-2.4.1.tar.gz Original-site: Copying-policy: GPL. End aprsdigi-2.4.4/parse_cooked_ax25.pdf0000644000076400007640000000764510016741515013020 %PDF-1.3 %쏢 6 0 obj <> stream xZߏ ~߿b; -ЗC]׵\s4GRhv̹ G#ERl'rN'??'뭛D&Ҵ9ɺfK-%d0m|9YgT')G_ۨf릶,u|Uhl*եӏW_&+0ex<-i[N/w:}w7<F+4B)B.rX! 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