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* Libalias incorrectly applies proxy rules to the global divertPoul-Henning Kamp2005-06-271-1/+5
| | | | | | | | | | socket: it should only look for existing translation entries, not create new ones (no matter how it got the idea). Approved by: re(scottl) Notes: svn path=/head/; revision=147636
* Disable checksum processing in LibAlias, when it works as aGleb Smirnoff2005-06-277-12/+50
| | | | | | | | | | | | | | | | | | kernel module. LibAlias is not aware about checksum offloading, so the caller should provide checksum calculation. (The only current consumer is ng_nat(4)). When TCP packet internals has been changed and it requires checksum recalculation, a cookie is set in th_x2 field of TCP packet, to inform caller that it needs to recalculate checksum. This ugly hack would be removed when LibAlias is made more kernel friendly. Incremental checksum updates are left as is, since they don't conflict with offloading. Approved by: re (scottl) Notes: svn path=/head/; revision=147623
* - Don't use legacy function in a non-legacy one. This gives usGleb Smirnoff2005-06-201-4/+3
| | | | | | | | | | possibility to compile libalias without legacy support. - Use correct way to mark variable as unused. Approved by: re (dwhite) Notes: svn path=/head/; revision=147501
* Add a workaround for 64-bit archs: store unsigned long return value inGleb Smirnoff2005-05-061-3/+6
| | | | | | | temporary variable, check it and then cast to in_addr_t. Notes: svn path=/head/; revision=145963
* s/DEBUG/LIBALIAS_DEBUG/, since DEBUG is defined in LINT andGleb Smirnoff2005-05-066-49/+49
| | | | | | | not supported for kernel build. Notes: svn path=/head/; revision=145961
* More bits for kernel version:Gleb Smirnoff2005-05-051-1/+107
| | | | | | | | - copy inet_aton() from libc - disable getservbyname() lookup and accept only numeric port Notes: svn path=/head/; revision=145933
* Always include alias.h before alias_local.hGleb Smirnoff2005-05-059-8/+11
| | | | Notes: svn path=/head/; revision=145932
* When used in kernel define NO_FW_PUNCH, NO_LOGGING, NO_USE_SOCKETS.Gleb Smirnoff2005-05-051-0/+9
| | | | Notes: svn path=/head/; revision=145931
* Fix argument order for bcopy() in last commit.Gleb Smirnoff2005-05-051-1/+1
| | | | | | | | Noticed by: njl Pointy hat to: glebius Notes: svn path=/head/; revision=145930
* Use bcopy() instead of memmove().Gleb Smirnoff2005-05-051-1/+1
| | | | Notes: svn path=/head/; revision=145929
* Hide fflush(3) under ifdef DEBUG.Gleb Smirnoff2005-05-051-2/+2
| | | | Notes: svn path=/head/; revision=145928
* Things required to build libalias as kernel module:Gleb Smirnoff2005-05-052-0/+74
| | | | | | | | | | | | | | - kernel module declarations and handler. - macros to map malloc(3) calls to malloc(9) ones. - malloc(9) declarations. - call finishoff() from module handler MOD_UNLOAD case instead of atexit(3). - use panic(9) instead of abort(3) - take time from time_second instead of gettimeofday(2) - define INADDR_NONE Notes: svn path=/head/; revision=145927
* Add NO_USE_SOCKETS knob, which cuts off functionality socket binding.Gleb Smirnoff2005-05-052-8/+18
| | | | Notes: svn path=/head/; revision=145926
* Add NO_LOGGING knob, which cuts off functionality of debug logging to a file.Gleb Smirnoff2005-05-053-15/+19
| | | | Notes: svn path=/head/; revision=145925
* Play with includes so that libalias can be compiled both as userlandGleb Smirnoff2005-05-0512-33/+159
| | | | | | | library and kernel module. Notes: svn path=/head/; revision=145921
* Cleanup IPFW2 ifdefs.Gleb Smirnoff2005-05-041-58/+0
| | | | Notes: svn path=/head/; revision=145868
* Makefile is not needed here.Gleb Smirnoff2005-05-041-14/+0
| | | | Notes: svn path=/head/; revision=145867
* natd core dumps when -reverse switch is used because of a bug inPoul-Henning Kamp2005-04-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | libalias. In /usr/src/lib/libalias/alias.c, the functions LibAliasIn and LibAliasOutTry call the legacy PacketAliasIn/PacketAliasOut instead of LibAliasIn/LibAliasOut when the PKT_ALIAS_REVERSE option is set. In this case, the context variable "la" gets lost because the legacy compatibility routines expect "la" to be global. This was obviously an oversight when rewriting the PacketAlias* functions to the LibAlias* functions. The fix (as shown in the patch below) is to remove the legacy subroutine calls and replace with the new ones using the "la" struct as the first arg. Submitted by: Gil Kloepfer <fgil@kloepfer.org> Confirmed by: <nicolai@catpipe.net> PR: 76839 MFC after: 3 days Notes: svn path=/head/; revision=144666
* Fix a problem in the Skinny ALG where a specially crafted packet could causeJoe Marcus Clarke2005-03-031-4/+4
| | | | | | | | | | | | a libalias application (e.g. natd, ppp, etc.) to crash. Note: Skinny support is not enabled in natd or ppp by default. Approved by: secteam (nectar) MFC after: 1 day Secuiryt: This fixes a remote DoS exploit Notes: svn path=/head/; revision=143083
* Sort sections.Ruslan Ermilov2005-01-201-5/+5
| | | | Notes: svn path=/head/; revision=140505
* include "alias.h", not <alias.h>Brian Somers2005-01-101-1/+1
| | | | | | | MFC after: 3 days Notes: svn path=/head/; revision=139976
* For variables that are only checked with defined(), don't provideRuslan Ermilov2004-10-241-1/+1
| | | | | | | any fake value. Notes: svn path=/head/; revision=136910
* Fix outgoing ICMP on global instance.Poul-Henning Kamp2004-08-141-5/+5
| | | | Notes: svn path=/head/; revision=133719
* Fix Skinny and PPTP NAT'ing after the introduction of the {ip,tcp,udp}_nextJoe Marcus Clarke2004-08-042-2/+2
| | | | | | | | | | | | functions. Basically, the ip_next() function was used to get the PPTP and Skinny headers when tcp_next() should have been used instead. Symptoms of this included a segfault in natd when trying to process a PPTP or Skinny packet. Approved by: des Notes: svn path=/head/; revision=133121
* Push WARNS back up to 6, but define NO_WERROR; I want the warts out in theDag-Erling Smørgrav2004-07-061-1/+2
| | | | | | | open where people can see them and hopefully fix them. Notes: svn path=/head/; revision=131700
* Introduce inline {ip,udp,tcp}_next() functions which take a pointer to anDag-Erling Smørgrav2004-07-0612-52/+77
| | | | | | | | | | {ip,udp,tcp} header and return a void * pointing to the payload (i.e. the first byte past the end of the header and any required padding). Use them consistently throughout libalias to a) reduce code duplication, b) improve code legibility, c) get rid of a bunch of alignment warnings. Notes: svn path=/head/; revision=131699
* Rewrite twowords() to access its argument through a char pointer and notDag-Erling Smørgrav2004-07-061-3/+10
| | | | | | | | | a short pointer. The previous implementation seems to be in a gray zone of the C standard, and GCC generates incorrect code for it at -O2 or higher on some platforms. Notes: svn path=/head/; revision=131693
* Temporarily lower WARNS to 3 while I figure out the alignment issues onDag-Erling Smørgrav2004-07-061-1/+1
| | | | | | | alpha. Notes: svn path=/head/; revision=131690
* Make libalias WARNS?=6-clean. This mostly involves renaming variablesDag-Erling Smørgrav2004-07-0515-676/+721
| | | | | | | | | | | | named link, foo_link or link_foo to lnk, foo_lnk or lnk_foo, fixing signed / unsigned comparisons, and shoving unused function arguments under the carpet. I was hoping WARNS?=6 might reveal more serious problems, and perhaps the source of the -O2 breakage, but found no smoking gun. Notes: svn path=/head/; revision=131614
* Parenthesize return values.Dag-Erling Smørgrav2004-07-056-120/+120
| | | | Notes: svn path=/head/; revision=131613
* Mechanical whitespace cleanup.Dag-Erling Smørgrav2004-07-056-126/+126
| | | | Notes: svn path=/head/; revision=131612
* Add LibAliasOutTry() which checks a packet for a hit in the tables, butPoul-Henning Kamp2004-07-042-16/+29
| | | | | | | does not create a new entry if none is found. Notes: svn path=/head/; revision=131566
* Mechanically kill hard sentence breaks.Ruslan Ermilov2004-07-021-7/+7
| | | | Notes: svn path=/head/; revision=131504
* Bumped document date.Ruslan Ermilov2004-07-011-5/+7
| | | | | | | | Fixed markup. Fixed examples to match the new API. Notes: svn path=/head/; revision=131420
* Unbreak natd.Daniel Eischen2004-04-021-0/+1
| | | | | | | Reported and submitted by: Sean McNeil (sean at mcneil.com) Notes: svn path=/head/; revision=127757
* Raise WARNS level to 2.Dag-Erling Smørgrav2004-03-311-0/+1
| | | | Notes: svn path=/head/; revision=127690
* Deal with aliasing warnings.Dag-Erling Smørgrav2004-03-314-181/+63
| | | | | | | | Reviewed by: ru Approved by: silence on the lists Notes: svn path=/head/; revision=127689
* Run through indent(1) so I can read the code without getting a headache.Dag-Erling Smørgrav2004-03-1614-5317/+5233
| | | | | | | | The result isn't quite knf, but it's knfer than the original, and far more consistent. Notes: svn path=/head/; revision=127094
* Mostly mechanical rework of libalias:Poul-Henning Kamp2004-01-1716-737/+1071
| | | | | | | | | | | | | | | Makes it possible to have multiple packet aliasing instances in a single process by moving all static and global variables into an instance structure called "struct libalias". Redefine a new API based on s/PacketAlias/LibAlias/g Add new "instance" argument to all functions in the new API. Implement old API in terms of the new API. Notes: svn path=/head/; revision=124621
* Grrr...add the Skinny alias code forgotten in the last commit.Joe Marcus Clarke2003-09-231-0/+338
| | | | Notes: svn path=/head/; revision=120373
* Add Cisco Skinny Station protocol support to libalias, natd, and ppp.Joe Marcus Clarke2003-09-236-1/+30
| | | | | | | | | | | | | | | | | | Skinny is the protocol used by Cisco IP phones to talk to Cisco Call Managers. With this code, one can use a Cisco IP phone behind a FreeBSD NAT gateway. Currently, having the Call Manager behind the NAT gateway is not supported. More information on enabling Skinny support in libalias, natd, and ppp can be found in those applications' manpages. PR: 55843 Reviewed by: ru Approved by: ru MFC after: 30 days Notes: svn path=/head/; revision=120372
* Fixed -Wpointer-arith warning.Ruslan Ermilov2003-09-091-1/+1
| | | | | | | | Submitted by: Stefan Farfeleder PR: bin/56653 Notes: svn path=/head/; revision=119932
* mdoc(7): Use the new feature of the .In macro.Ruslan Ermilov2003-09-081-2/+2
| | | | Notes: svn path=/head/; revision=119893
* style.Makefile(5)David E. O'Brien2003-08-181-1/+1
| | | | Notes: svn path=/head/; revision=119071
* Stage 3 of dynamic root support. Make all the libraries needed to runGordon Tetlow2003-08-171-0/+1
| | | | | | | | | binaries in /bin and /sbin installed in /lib. Only the versioned files reside in /lib, the .so symlink continues to live /usr/lib so the toolchain doesn't need to be modified. Notes: svn path=/head/; revision=119017
* In the PKT_ALIAS_PROXY_ONLY mode, make sure to preserve theRuslan Ermilov2003-06-131-0/+4
| | | | | | | | | original source IP address, as promised in the manual page. Spotted by: Vaclav Petricek Notes: svn path=/head/; revision=116315
* Removed a couple of .Xo/.Xc that are leftovers of the "ninth-argumentRuslan Ermilov2003-06-131-9/+3
| | | | | | | limit" mdoc(7) atavism. Notes: svn path=/head/; revision=116314
* Clarify that original address and port when doing transparent proxyingRuslan Ermilov2003-06-131-5/+5
| | | | | | | are _destination_ address and port. Notes: svn path=/head/; revision=116313
* Added myself to the AUTHORS section.Ruslan Ermilov2003-06-131-0/+2
| | | | Notes: svn path=/head/; revision=116312
* The .Fn functionPhilippe Charnier2003-06-081-4/+6
| | | | Notes: svn path=/head/; revision=116020
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