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| -rw-r--r-- | AUTHORS | 1 | ||||
| -rw-r--r-- | COPYING | 340 | ||||
| -rw-r--r-- | ChangeLog | 0 | ||||
| -rw-r--r-- | INSTALL | 236 | ||||
| -rw-r--r-- | Makefile.am | 3 | ||||
| -rw-r--r-- | NEWS | 0 | ||||
| -rw-r--r-- | README | 0 | ||||
| -rw-r--r-- | _boring | 45 | ||||
| -rw-r--r-- | config.h.in | 22 | ||||
| -rw-r--r-- | configure.ac | 20 | ||||
| -rw-r--r-- | stun/stun.c | 244 | ||||
| -rw-r--r-- | stun/stun.h | 78 | ||||
| -rw-r--r-- | tests/Makefile.am | 10 | ||||
| -rw-r--r-- | tests/test.c | 189 |
14 files changed, 1188 insertions, 0 deletions
@@ -0,0 +1 @@ +Dafydd Harries <dafydd.harries@collabora.co.uk> @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 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. diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/ChangeLog @@ -0,0 +1,236 @@ +Installation Instructions +************************* + +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005 Free +Software Foundation, Inc. + +This file is free documentation; the Free Software Foundation gives +unlimited permission to copy, distribute and modify it. + +Basic Installation +================== + +These are generic installation instructions. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, and a +file `config.log' containing compiler output (useful mainly for +debugging `configure'). + + It can also use an optional file (typically called `config.cache' +and enabled with `--cache-file=config.cache' or simply `-C') that saves +the results of its tests to speed up reconfiguring. (Caching is +disabled by default to prevent problems with accidental use of stale +cache files.) + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If you are using the cache, and at +some point `config.cache' contains results you don't want to keep, you +may remove or edit it. + + The file `configure.ac' (or `configure.in') is used to create +`configure' by a program called `autoconf'. You only need +`configure.ac' if you want to change it or regenerate `configure' using +a newer version of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. If you're + using `csh' on an old version of System V, you might need to type + `sh ./configure' instead to prevent `csh' from trying to execute + `configure' itself. + + Running `configure' takes awhile. While running, it prints some + messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + +Compilers and Options +===================== + +Some systems require unusual options for compilation or linking that the +`configure' script does not know about. Run `./configure --help' for +details on some of the pertinent environment variables. + + You can give `configure' initial values for configuration parameters +by setting variables in the command line or in the environment. Here +is an example: + + ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix + + *Note Defining Variables::, for more details. + +Compiling For Multiple Architectures +==================================== + +You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you must use a version of `make' that +supports the `VPATH' variable, such as GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + If you have to use a `make' that does not support the `VPATH' +variable, you have to compile the package for one architecture at a +time in the source code directory. After you have installed the +package for one architecture, use `make distclean' before reconfiguring +for another architecture. + +Installation Names +================== + +By default, `make install' installs the package's commands under +`/usr/local/bin', include files under `/usr/local/include', etc. You +can specify an installation prefix other than `/usr/local' by giving +`configure' the option `--prefix=PREFIX'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +pass the option `--exec-prefix=PREFIX' to `configure', the package uses +PREFIX as the prefix for installing programs and libraries. +Documentation and other data files still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=DIR' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + +Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + +There may be some features `configure' cannot figure out automatically, +but needs to determine by the type of machine the package will run on. +Usually, assuming the package is built to be run on the _same_ +architectures, `configure' can figure that out, but if it prints a +message saying it cannot guess the machine type, give it the +`--build=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name which has the form: + + CPU-COMPANY-SYSTEM + +where SYSTEM can have one of these forms: + + OS KERNEL-OS + + See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the machine type. + + If you are _building_ compiler tools for cross-compiling, you should +use the option `--target=TYPE' to select the type of system they will +produce code for. + + If you want to _use_ a cross compiler, that generates code for a +platform different from the build platform, you should specify the +"host" platform (i.e., that on which the generated programs will +eventually be run) with `--host=TYPE'. + +Sharing Defaults +================ + +If you want to set default values for `configure' scripts to share, you +can create a site shell script called `config.site' that gives default +values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Defining Variables +================== + +Variables not defined in a site shell script can be set in the +environment passed to `configure'. However, some packages may run +configure again during the build, and the customized values of these +variables may be lost. In order to avoid this problem, you should set +them in the `configure' command line, using `VAR=value'. For example: + + ./configure CC=/usr/local2/bin/gcc + +causes the specified `gcc' to be used as the C compiler (unless it is +overridden in the site shell script). Here is a another example: + + /bin/bash ./configure CONFIG_SHELL=/bin/bash + +Here the `CONFIG_SHELL=/bin/bash' operand causes subsequent +configuration-related scripts to be executed by `/bin/bash'. + +`configure' Invocation +====================== + +`configure' recognizes the following options to control how it operates. + +`--help' +`-h' + Print a summary of the options to `configure', and exit. + +`--version' +`-V' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`--cache-file=FILE' + Enable the cache: use and save the results of the tests in FILE, + traditionally `config.cache'. FILE defaults to `/dev/null' to + disable caching. + +`--config-cache' +`-C' + Alias for `--cache-file=config.cache'. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`configure' also accepts some other, not widely useful, options. Run +`configure --help' for more details. + diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..37f2823 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,3 @@ + +SUBDIRS = tests + @@ -0,0 +1,45 @@ +# Boring file regexps: +\.hi$ +\.o$ +\.o\.cmd$ +# *.ko files aren't boring by default because they might +# be Korean translations rather than kernel modules. +# \.ko$ +\.ko\.cmd$ +\.mod\.c$ +(^|/)\.tmp_versions($|/) +(^|/)CVS($|/) +(^|/)RCS($|/) +~$ +#(^|/)\.[^/] +(^|/)_darcs($|/) +\.bak$ +\.BAK$ +\.orig$ +(^|/)vssver\.scc$ +\.swn$ +\.swo$ +\.swp$ +(^|/)MT($|/) +(^|/)\{arch\}($|/) +(^|/).arch-ids($|/) +(^|/), +\.class$ +\.prof$ +(^|/)\.DS_Store$ +(^|/)BitKeeper($|/) +(^|/)ChangeSet($|/) +(^|/)\.svn($|/) +\.py[co]$ +\# +\.cvsignore$ +(^|/)Thumbs\.db$ +(^|/)autom4te\.cache($|/) +^missing +^install-sh$ +^configure$ +^depcomp$ +^aclocal.m4$ +^compile$ +^\.deps$ +(^|.*/)Makefile.in diff --git a/config.h.in b/config.h.in new file mode 100644 index 0000000..c364eda --- /dev/null +++ b/config.h.in @@ -0,0 +1,22 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Version number of package */ +#undef VERSION diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..d5afb8f --- /dev/null +++ b/configure.ac @@ -0,0 +1,20 @@ + +AC_PREREQ(2.60) +AC_INIT(stun, 0.0.1) +AC_CONFIG_SRCDIR([.]) +AC_CONFIG_HEADER([config.h]) +AM_INIT_AUTOMAKE +AC_CONFIG_FILES([Makefile tests/Makefile]) + +# Checks for programs. + +AC_PROG_CC + +# Checks for libraries. + +AM_PATH_CHECK() + +PKG_CHECK_MODULES(GLIB, [glib-2.0 >= 2.4, gobject-2.0 >= 2.4]) + +AC_OUTPUT + diff --git a/stun/stun.c b/stun/stun.c new file mode 100644 index 0000000..0f5979a --- /dev/null +++ b/stun/stun.c @@ -0,0 +1,244 @@ + +#include "stun.h" + +#include <arpa/inet.h> +#include <string.h> + +/* remove */ +#include <stdio.h> + +static StunAttribute * +stun_attribute_new(guint type) +{ + StunAttribute *attr = g_slice_alloc(sizeof(StunAttribute)); + + attr->type = type; + return attr; +} + +StunAttribute * +stun_attribute_mapped_address_new(guint32 ip, guint16 port) +{ + StunAttribute *attr = stun_attribute_new(STUN_ATTRIBUTE_MAPPED_ADDRESS); + + attr->length = 8; + attr->address.padding = 0; + attr->address.af = 1; + attr->address.ip = ip; + attr->address.port = port; + return attr; +} + +void +stun_attribute_free(StunAttribute *attr) +{ + g_slice_free1(sizeof(StunAttribute), attr); +} + +StunAttribute * +stun_attribute_unpack(guint length, const gchar *s) +{ + StunAttribute *attr; + + g_assert(length); + attr = stun_attribute_new(ntohs(*(guint16 *)s)); + + switch (attr->type) { + case STUN_ATTRIBUTE_MAPPED_ADDRESS: + attr->address.af = (guint8)s[5]; + g_assert(attr->address.af == 1); + attr->address.port = ntohs(*(guint16 *)(s + 6)); + attr->address.ip = ntohl(*(guint32 *)(s + 8)); + break; + default: + g_assert_not_reached(); + stun_attribute_free(attr); + return NULL; + } + + return attr; +} + +guint +stun_attribute_pack(StunAttribute *attr, gchar **packed) +{ + switch (attr->type) { + case STUN_ATTRIBUTE_MAPPED_ADDRESS: + { + StunAttribute *ret = g_malloc0(sizeof(StunAttribute)); + + ret->type = htons(attr->type); + ret->length = htons(8); + ret->address.af = attr->address.af; + ret->address.port = htons(attr->address.port); + ret->address.ip = htonl(attr->address.ip); + *packed = (gchar *)ret; + return 12; + } + default: + return 0; + } +} + +gchar * +stun_attribute_dump(StunAttribute *attr) +{ + switch (attr->type) { + case STUN_ATTRIBUTE_MAPPED_ADDRESS: + return g_strdup_printf( + "MAPPED-ADDRESS %d.%d.%d.%d:%d", + (attr->address.ip & 0xff000000) >> 24, + (attr->address.ip & 0x00ff0000) >> 16, + (attr->address.ip & 0x0000ff00) >> 8, + (attr->address.ip & 0x000000ff) >> 0, + attr->address.port); + default: + return NULL; + } +} + +static StunMessage * +stun_message_new(guint type) +{ + StunMessage *msg = g_slice_alloc0(sizeof(StunMessage)); + + msg->type = type; + return msg; +} + +StunMessage * +stun_message_binding_request_new() +{ + return stun_message_new(STUN_MESSAGE_BINDING_REQUEST); +} + +void +stun_message_free(StunMessage *msg) +{ + StunAttribute **attr; + + if (msg->attributes) { + for (attr = msg->attributes; *attr; attr++) + stun_attribute_free(*attr); + + g_free(msg->attributes); + } + + g_slice_free1(sizeof(StunMessage), msg); +} + +StunMessage * +stun_message_unpack(guint length, gchar *s) +{ + gchar *t; + guint attr_length; + guint n_attributes = 0; + guint i; + StunAttribute *attr; + StunMessage *msg = stun_message_new(STUN_MESSAGE_BINDING_REQUEST); + + /* message header is 20 bytes */ + + g_assert(length >= 20); + + /* unpack the header */ + + msg->type = ntohs(*(guint16 *)(s + 0)); + memcpy(msg->transaction_id, s + 4, 16); + + /* count the number of attributes */ + + for (t = s + 20; t - s < length; t += attr_length + 4) { + attr_length = ntohs(*(guint16 *)(t + 2)); + n_attributes++; + } + + /* allocate memory for the attribute list and terminate it */ + + msg->attributes = g_malloc0((n_attributes + 1) * sizeof(StunAttribute *)); + msg->attributes[n_attributes] = NULL; + + /* unpack attributes */ + + for (i = 0, t = s + 20; i < n_attributes; i++, t += attr_length + 4) { + attr_length = ntohs(*(guint16 *)(t + 2)); + attr = msg->attributes[i] = stun_attribute_unpack(attr_length, t); + } + + return msg; +} + +guint +stun_message_pack(StunMessage *msg, gchar **packed) +{ + GString *tmp = g_string_new(""); + unsigned int packed_type; + guint16 packed_length; + guint length = 20; + + if (msg->attributes) { + StunAttribute **attr; + + for (attr = msg->attributes; *attr; attr++) + length += 4 + (*attr)->length; + } + + packed_type = htons(msg->type); + packed_length = htons(length); + + g_string_append_printf(tmp, "%c%c%c%c", + ((gchar *)&packed_type)[0], + ((gchar *)&packed_type)[1], + ((gchar *)&packed_length)[0], + ((gchar *)&packed_length)[1]); + g_string_append_len(tmp, msg->transaction_id, 16); + + if (msg->attributes) { + StunAttribute **attr; + + for (attr = msg->attributes; *attr; attr++) { + gchar *attr_packed; + guint attr_length = stun_attribute_pack(*attr, &attr_packed); + g_string_append_len(tmp, attr_packed, attr_length); + g_free(attr_packed); + } + } + + *packed = g_string_free(tmp, FALSE); + return length; +} + +gchar * +stun_message_dump (StunMessage *msg) +{ + StunAttribute **attr; + GString *tmp = g_string_new(""); + const gchar *name; + + switch (msg->type) { + case STUN_MESSAGE_BINDING_REQUEST: + name = "BINDING-REQUEST"; + break; + default: + return NULL; + } + + g_string_printf(tmp, + "%s %08x:%08x:%08x:%08x", + name, + *(guint32*)(msg->transaction_id), + *(guint32*)(msg->transaction_id + 4), + *(guint32*)(msg->transaction_id + 8), + *(guint32*)(msg->transaction_id + 12)); + + if (msg->attributes) { + for (attr = msg->attributes; *attr; attr++) { + gchar *dump = stun_attribute_dump(*attr); + g_string_append_printf(tmp, "\n %s", dump); + g_free(dump); + } + } + + return g_string_free(tmp, FALSE); +} + diff --git a/stun/stun.h b/stun/stun.h new file mode 100644 index 0000000..0557f0f --- /dev/null +++ b/stun/stun.h @@ -0,0 +1,78 @@ + +#ifndef __STUN_H__ +#define __STUN_H__ + +#include <glib.h> + +typedef enum { + STUN_MESSAGE_BINDING_REQUEST = 0x001, + STUN_MESSAGE_BINDING_RESPONSE = 0x101, + STUN_MESSAGE_BINDING_ERROR_RESPONSE = 0x111, + STUN_MESSAGE_SHARED_SECRET_REQUEST = 0x002, + STUN_MESSAGE_SHARED_SECRET_RESPONSE = 0x102, + STUN_MESSAGE_SHARED_SECRET_ERROR_RESPONSE = 0x112 +} StunMessageType; + +typedef enum { + STUN_ATTRIBUTE_MAPPED_ADDRESS = 0x1, + STUN_ATTRIBUTE_RESPONSE_ADDRESS = 0x2, + STUN_ATTRIBUTE_CHANGE_REQUEST = 0x3, + STUN_ATTRIBUTE_CHANGED_ADDRESS = 0x4, + STUN_ATTRIBUTE_SOURCE_ADDRESS = 0x5, + STUN_ATTRIBUTE_USERNAME = 0x6, + STUN_ATTRIBUTE_PASSWORD = 0x7, + STUN_ATTRIBUTE_MESSAGE_INTEGRITY = 0x8, + STUN_ATTRIBUTE_ERROR_CODE = 0x9, + STUN_ATTRIBUTE_UNKNOWN_ATTRIBUTES = 0xa, + STUN_ATTRIBUTE_REFLECTED_FROM = 0xb +} StunAttributeType; + +typedef struct _StunAttributeAddress StunAttributeAddress; + +struct _StunAttributeAddress { + guint8 padding; + guint8 af; + guint16 port; + guint32 ip; +}; + +typedef struct _StunAttribute StunAttribute; + +struct _StunAttribute { + guint16 type; + guint16 length; + StunAttributeAddress address; +}; + +typedef struct _StunMessage StunMessage; + +struct _StunMessage { + guint16 type; + gchar transaction_id[16]; + StunAttribute **attributes; +}; + +StunAttribute * +stun_attribute_mapped_address_new(guint32 ip_address, guint16 port); +void +stun_attribute_free(StunAttribute *attr); +guint +stun_attribute_pack(StunAttribute *attr, gchar **ret); +gchar * +stun_attribute_dump(StunAttribute *attr); +StunAttribute * +stun_attribute_unpack(guint length, const gchar *s); + +StunMessage * +stun_message_binding_request_new(); +void +stun_message_free(StunMessage *msg); +guint +stun_message_pack(StunMessage *msg, gchar **packed); +gchar * +stun_message_dump (StunMessage *msg); +StunMessage * +stun_message_unpack(guint length, gchar *s); + +#endif /* __STUN_H__ */ + diff --git a/tests/Makefile.am b/tests/Makefile.am new file mode 100644 index 0000000..bd6fd5b --- /dev/null +++ b/tests/Makefile.am @@ -0,0 +1,10 @@ + +AM_CFLAGS = -std=c99 -Wall -Werror + +test_SOURCES = test.c $(top_srcdir)/stun/stun.h $(top_srcdir)/stun/stun.c +test_CFLAGS = -I$(top_srcdir)/stun $(AM_CFLAGS) @CHECK_CFLAGS@ @GLIB_CFLAGS@ +test_LDADD = @CHECK_LIBS@ @GLIB_LIBS@ + +TESTS = test +noinst_PROGRAMS = test + diff --git a/tests/test.c b/tests/test.c new file mode 100644 index 0000000..8b1278f --- /dev/null +++ b/tests/test.c @@ -0,0 +1,189 @@ + +#include <string.h> + +#include <check.h> + +#include <stun.h> + +START_TEST (test_attribute_pack) +{ + StunAttribute *attr = stun_attribute_mapped_address_new(0x02030405, 2345); + gchar *packed; + guint length; + + length = stun_attribute_pack(attr, &packed); + + fail_unless(12 == length); + fail_unless(NULL != packed); + + fail_unless(0 == memcmp(packed, + "\x00\x01" // type + "\x00\x08" // length + "\x00\x01" // padding, address family + "\x09\x29" // port + "\x02\x03\x04\x05", // IP address + length)); + g_free(packed); + stun_attribute_free(attr); +} +END_TEST + +START_TEST (test_attribute_dump) +{ + StunAttribute *attr = stun_attribute_mapped_address_new(0x02030405, 2345); + gchar *dump = stun_attribute_dump(attr); + + fail_unless(NULL != dump); + fail_unless(0 == strcmp(dump, "MAPPED-ADDRESS 2.3.4.5:2345")); + g_free(dump); + stun_attribute_free(attr); +} +END_TEST + +START_TEST (test_attribute_unpack) +{ + StunAttribute *attr = stun_attribute_unpack(12, + "\x00\x01" // type + "\x00\x08" // length + "\x00\x01" // padding, address family + "\x09\x29" // port + "\x02\x03\x04\x05" // IP address + ); + + fail_unless(NULL != attr); + fail_unless(attr->type == STUN_ATTRIBUTE_MAPPED_ADDRESS); + fail_unless(attr->address.af == 1); + fail_unless(attr->address.port == 2345); + fail_unless(attr->address.ip == 0x02030405); + stun_attribute_free(attr); +} +END_TEST + +START_TEST (test_message_pack) +{ + StunMessage *msg = stun_message_binding_request_new(); + gchar *packed; + guint length; + + memcpy(msg->transaction_id, + "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", 16); + msg->attributes = g_malloc0(2 * sizeof(StunAttribute *)); + msg->attributes[0] = stun_attribute_mapped_address_new(0x02030405, 2345); + length = stun_message_pack(msg, &packed); + + fail_unless(packed != NULL); + fail_unless(length == 32); + fail_unless(0 == memcmp(packed + 0, "\x00\x01", 2)); + fail_unless(0 == memcmp(packed + 2, "\x00\x20", 2)); + fail_unless(0 == memcmp(packed + 4, + "\x00\x01\x02\x03" + "\x04\x05\x06\x07" + "\x08\x09\x0a\x0b" + "\x0c\x0d\x0e\x0f", 16)); + fail_unless(0 == memcmp(packed + 20, + "\x00\x01" + "\x00\x08" + "\x00\x01" + "\x09\x29" + "\x02\x03\x04\x05", 12)); + + g_free(packed); + stun_message_free(msg); +} +END_TEST + +START_TEST (test_message_dump) +{ + StunMessage *msg = stun_message_binding_request_new(); + gchar *dump; + + msg->attributes = g_malloc0(2 * sizeof(StunAttribute *)); + msg->attributes[0] = stun_attribute_mapped_address_new(0x02030405, 2345); + + dump = stun_message_dump(msg); + fail_unless(NULL != dump); + fail_unless(0 == strcmp(dump, + "BINDING-REQUEST 00000000:00000000:00000000:00000000\n" + " MAPPED-ADDRESS 2.3.4.5:2345")); + g_free(dump); + stun_message_free(msg); +} +END_TEST + +START_TEST (test_message_unpack) +{ + StunMessage *msg = stun_message_unpack(32, + "\x00\x01" // type + "\x00\x0c" // length + "\x00\x01\x02\x03" // transaction ID + "\x04\x05\x06\x07" + "\x08\x09\x0a\x0b" + "\x0c\x0d\x0e\x0f" + "\x00\x01" // attr1 type + "\x00\x08" // attr1 length + "\x00\x01" // padding, address family + "\x09\x29" // port + "\x02\x03\x04\x05" // IP address + ); + + fail_unless(msg->type == STUN_MESSAGE_BINDING_REQUEST); + fail_unless(msg->attributes[0] != NULL); + fail_unless(msg->attributes[0]->type == STUN_ATTRIBUTE_MAPPED_ADDRESS); + fail_unless(msg->attributes[0]->address.port == 2345); + fail_unless(msg->attributes[0]->address.ip == 0x02030405); + fail_unless(msg->attributes[1] == NULL); + stun_message_free(msg); +} +END_TEST + +Suite * +stun_suite(void) +{ + Suite *suite; + TCase *tcase; + + suite = suite_create("STUN"); + + tcase = tcase_create("attribute pack"); + tcase_add_test(tcase, test_attribute_pack); + suite_add_tcase(suite, tcase); + + tcase = tcase_create("attribute dump"); + tcase_add_test(tcase, test_attribute_dump); + suite_add_tcase(suite, tcase); + + tcase = tcase_create("attribute unpack"); + tcase_add_test(tcase, test_attribute_unpack); + suite_add_tcase(suite, tcase); + + tcase = tcase_create("message pack"); + tcase_add_test(tcase, test_message_pack); + suite_add_tcase(suite, tcase); + + tcase = tcase_create("message dump"); + tcase_add_test(tcase, test_message_dump); + suite_add_tcase(suite, tcase); + + tcase = tcase_create("message unpack"); + tcase_add_test(tcase, test_message_unpack); + suite_add_tcase(suite, tcase); + + return suite; +} + +int +main(void) +{ + Suite *suite; + SRunner *runner; + int failures; + + suite = stun_suite(); + runner = srunner_create(suite); + srunner_run_all(runner, CK_NORMAL | CK_NOFORK); + failures = srunner_ntests_failed(runner); + srunner_free(runner); + + return (failures == 0) ? 0 : 1; +} + |