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* Build userland libalias using src/sys/netinet/libalias.Gleb Smirnoff2005-05-041-355/+0
| | | | | | | | Reviewed by: ru Repocopy by: peter Notes: svn path=/head/; revision=145862
* Introduce inline {ip,udp,tcp}_next() functions which take a pointer to anDag-Erling Smørgrav2004-07-061-0/+26
| | | | | | | | | | {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
* Make libalias WARNS?=6-clean. This mostly involves renaming variablesDag-Erling Smørgrav2004-07-051-37/+37
| | | | | | | | | | | | 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
* Deal with aliasing warnings.Dag-Erling Smørgrav2004-03-311-2/+1
| | | | | | | | 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 Smørgrav2004-03-161-146/+161
| | | | | | | | 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 Kamp2004-01-171-41/+123
| | | | | | | | | | | | | | | 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
* Add Cisco Skinny Station protocol support to libalias, natd, and ppp.Joe Marcus Clarke2003-09-231-0/+4
| | | | | | | | | | | | | | | | | | 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
* Remove trailing whitespaceBrian Somers2002-07-011-1/+1
| | | | Notes: svn path=/head/; revision=99207
* cmott@scientech.com -> cm@linktel.netBrian Somers2001-11-031-1/+1
| | | | | | | Requested by: Charles Mott <cmott@scientech.com> Notes: svn path=/head/; revision=85964
* Add BSD-style copyright headersBrian Somers2001-06-041-2/+28
| | | | | | | Approved by: Charles Mott <cmott@scientech.com> Notes: svn path=/head/; revision=77701
* Add an integer field to keep protocol-specific flags with links.Ruslan Ermilov2001-05-301-2/+2
| | | | | | | | | | | | | For FTP control connection, keep the CRLF end-of-line termination status in there. Fixed the bug when the first FTP command in a session was ignored. PR: 24048 MFC after: 1 week Notes: svn path=/head/; revision=77485
* Make header files conform to style(9).Brian Somers2001-03-251-154/+146
| | | | | | | | | Reviewed by (*): bde (*) alias_local.h only got a cursory glance. Notes: svn path=/head/; revision=74778
* Added boolean argument to link searching functions, indicatingRuslan Ermilov2000-10-301-10/+4
| | | | | | | whether they should create a link if lookup has failed or not. Notes: svn path=/head/; revision=67980
* A significant rewrite of PPTP aliasing code.Ruslan Ermilov2000-10-301-4/+14
| | | | | | | | | | | | | | | | | PPTP links are no longer dropped by simple (and inappropriate in this case) "inactivity timeout" procedure, only when requested through the control connection. It is now possible to have multiple PPTP servers running behind NAT. Just redirect the incoming TCP traffic to port 1723, everything else is done transparently. Problems were reported and the fix was tested by: Michael Adler <Michael.Adler@compaq.com>, David Andersen <dga@lcs.mit.edu> Notes: svn path=/head/; revision=67966
* Add address translation support for RTSP/RTP used by RealPlayer andArchie Cobbs2000-07-261-0/+14
| | | | | | | | | | | Quicktime streaming media applications. Add a BUGS section to the man page. Submitted by: Erik Salander <erik@whistle.com> Notes: svn path=/head/; revision=63899
* Added true support for PPTP aliasing. Some nice features include:Ruslan Ermilov2000-06-201-0/+12
| | | | | | | | | | | | | | | | | | | | | | | - Multiple PPTP clients behind NAT to the same or different servers. - Single PPTP server behind NAT -- you just need to redirect TCP port 1723 to a local machine. Multiple servers behind NAT is possible but would require a simple API change. - No API changes! For more information on how this works see comments at the start of the alias_pptp.c. PacketAliasPptp() is no longer necessary and will be removed soon. Submitted by: Erik Salander <erik@whistle.com> Reviewed by: ru Rewritten by: ru Reviewed by: Erik Salander <erik@whistle.com> Notes: svn path=/head/; revision=61861
* - Added support for passive mode FTP by aliasing 227 replies.Ruslan Ermilov2000-06-141-0/+2
| | | | | | | | | | | | | | | | | | It does mean that it is now possible to run passive-mode FTP server behind NAT. - SECURITY: FTP aliasing engine now ensures that: o the segment preceding a PORT/227 segment terminates with a \r\n; o the IP address in the PORT/227 matches the source IP address of the packet; o the port number in the PORT command or 277 reply is greater than or equal to 1024. Submitted by: Erik Salander <erik@whistle.com> Reviewed by: ru Notes: svn path=/head/; revision=61677
* Replace PacketAliasRedirectPptp() (which had nothing specificRuslan Ermilov2000-04-281-2/+2
| | | | | | | | | | to PPTP) with more generic PacketAliasRedirectProto(). Major number is not bumped because it is believed that noone has started using PacketAliasRedirectPptp() yet. Notes: svn path=/head/; revision=59726
* Add support for multiple PPTP sessions:Ruslan Ermilov2000-04-181-2/+6
| | | | | | | | | | - new API function: PacketAliasRedirectPptp() - new mode bit: PKT_ALIAS_DENY_PPTP Please see manual page for details. Notes: svn path=/head/; revision=59356
* - Moved NULL definition into private include file.Ruslan Ermilov2000-04-051-0/+3
| | | | | | | - Minor spelling fixes. Notes: svn path=/head/; revision=59046
* Add $FreeBSD$ and spell Eklund properly.Bill Fumerola1999-08-291-1/+3
| | | | | | | Approved by: brian (well, he approved adding $Id$) Notes: svn path=/head/; revision=50597
* Add a ``const'' and remove some inconsistent prototype args.Brian Somers1999-03-241-1/+1
| | | | Notes: svn path=/head/; revision=45008
* Version 3.0: January 1, 1999Brian Somers1999-02-271-4/+67
| | | | | | | | | | | - Transparent proxying support added. - PPTP redirecting support added based on patches contributed by Dru Nelson <dnelson@redwoodsoft.com>. Submitted by: Charles Mott <cmott@srv.net> Notes: svn path=/head/; revision=44307
* Reviewed by: freebsd-currentMatthew Dillon1998-12-141-2/+2
| | | | | | | | | | | | Add bounds checking to netbios NS packet resolving code. This should prevent natd from crashing on badly formed netbios packets (as might be heard when the machine is sitting on a cable modem or certain DSL networks), and also closes potential security holes that might have exploited the lack of bounds checking in the previous version of the code. Notes: svn path=/head/; revision=41759
* Add CUSEEME support. This has *not* been tested, norBrian Somers1998-06-241-0/+2
| | | | | | | | could I find anyone to test it, so please report any problems to me. Notes: svn path=/head/; revision=37131
* Don't call PunchFWHole() ifdef NO_FW_PUNCHBrian Somers1998-06-061-0/+2
| | | | | | | Pointed out by: "Steve Sims" <SimsS@IBM.Net> Notes: svn path=/head/; revision=36711
* Primary verison of NetBIOS over TCP/IP. Now you can connect WindowsAtsushi Murai1998-05-241-0/+4
| | | | | | | | | | DOMAIN as DOMAIN user through NAT function. See also RFC1002 for futher detail of SMB structure. Submitted by: Atsushi Murai <amurai@spec.co.jp> Notes: svn path=/head/; revision=36321
* Teach libalias to work with IPFW firewalls (controlled by a flag).Eivind Eklund1998-01-091-4/+10
| | | | | | | | Obtained from: Yes development tree (+ 10 lines of patches from Charles Mott, original libalias author) Notes: svn path=/head/; revision=32377
* Update to version 2.2. Only the PacketAlias*()Brian Somers1997-08-031-4/+6
| | | | | | | | | functions should now be used. The old 2.1 stuff is there for backwards compatability. Submitted by: Charles Mott <cmott@snake.srv.net> Notes: svn path=/head/; revision=27864
* Create the alias library. This is currently only used byBrian Somers1997-05-231-0/+91
ppp (or will be shortly). Natd can now be updated to use this library rather than carrying its own version of the code. Submitted by: Charles Mott <cmott@srv.net> Notes: svn path=/cvs2svn/branches/CMOTT/; revision=26026
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