summaryrefslogtreecommitdiff
path: root/lib/libalias/alias.c
Commit message (Collapse)AuthorAgeFilesLines
* Added true support for PPTP aliasing. Some nice features include:Ruslan Ermilov2000-06-201-7/+52
| | | | | | | | | | | | | | | | | | | | | | | - 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
* Replace PacketAliasRedirectPptp() (which had nothing specificRuslan Ermilov2000-04-281-20/+14
| | | | | | | | | | 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 Ermilov2000-04-181-31/+52
| | | | | | | | | | - new API function: PacketAliasRedirectPptp() - new mode bit: PKT_ALIAS_DENY_PPTP Please see manual page for details. Notes: svn path=/head/; revision=59356
* - Remove unused includes.Ruslan Ermilov2000-04-051-24/+96
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Minor spelling fixes. - Make IcmpAliasOut2() really work. Before this change: # natd -v -n PUB_IFACE -p 12345 -redirect_address 192.168.1.1 P.P.P.P natd[87923]: Aliasing to A.A.A.A, mtu 1500 bytes In [UDP] [UDP] X.X.X.X:49562 -> P.P.P.P:50000 aliased to [UDP] X.X.X.X:49562 -> 192.168.1.1:50000 Out [ICMP] [ICMP] 192.168.1.1 -> X.X.X.X 3(3) aliased to [ICMP] A.A.A.A -> X.X.X.X 3(3) # tcpdump -n -t -i PUB_IFACE host X.X.X.X and "(udp or icmp)" tcpdump: listening on PUB_IFACE X.X.X.X.49562 > P.P.P.P.50000: udp 3 A.A.A.A > X.X.X.X: icmp: A.A.A.A udp port 50000 unreachable After this change: # natd -v -n PUB_IFACE -p 12345 -redirect_address 192.168.1.1 P.P.P.P natd[89360]: Aliasing to A.A.A.A, mtu 1500 bytes In [UDP] [UDP] X.X.X.X:49563 -> P.P.P.P:50000 aliased to [UDP] X.X.X.X:49563 -> 192.168.1.1:50000 Out [ICMP] [ICMP] 192.168.1.1 -> X.X.X.X 3(3) aliased to [ICMP] P.P.P.P -> X.X.X.X 3(3) # tcpdump -n -t -i PUB_IFACE host X.X.X.X and "(udp or icmp)" tcpdump: listening on PUB_IFACE X.X.X.X.49563 > P.P.P.P.50000: udp 3 P.P.P.P > X.X.X.X: icmp: P.P.P.P udp port 50000 unreachable Notes: svn path=/head/; revision=59047
* - Optimization to the previous (rev 1.15) commit.Ruslan Ermilov1999-09-101-9/+11
| | | | | | | | | Requested by: eivind Discussed with: eivind Reviewed by: brian, eivind Notes: svn path=/head/; revision=51125
* Handle TCP reset sequence properly.Ruslan Ermilov1999-09-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | In the words of originator: :If an incoming connection is initiated through natd and deny_incoming is :not set, then a new alias_link structure is created to handle the link. :If there is nothing listening for the incoming connection, then the kernel :responds with a RST for the connection. However, this is not processed :correctly in libalias/alias.c:TcpMonitor{In,Out} and :libalias/alias_db.c:SetState{In,Out} as it thinks a connection :has been established and therefore applies a timeout of 86400 seconds :to the link. : :If many of these half-connections are initiated (during, for example, a :port scan of the host), then many thousands of unnecessary links are :created and the resident size of natd balloons to 20MB or more. PR: 13639 Reviewed by: brian Notes: svn path=/head/; revision=51107
* Add $FreeBSD$ and spell Eklund properly.Bill Fumerola1999-08-291-0/+1
| | | | | | | Approved by: brian (well, he approved adding $Id$) Notes: svn path=/head/; revision=50597
* Aallow ppp to work with Nortel Networks Extranet SwitchBrian Somers1999-08-221-0/+6
| | | | | | | | | product and Windows NT tunneling. Submitted by: Chain Lee <chain@nortelnetworks.com> Notes: svn path=/head/; revision=50194
* Don't get caught in an infinite recursion when PKT_ALIAS_REVERSEBrian Somers1999-06-221-4/+12
| | | | | | | | | | | is set. Document PKT_ALIAS_REVERSE. Pointed out by: Jonathan Hanna <jh@cr1003333-a.crdva1.bc.home.com> PR: 12304 Notes: svn path=/head/; revision=48102
* Remove duplicate line.Bill Fumerola1999-03-231-1/+0
| | | | | | | Reviewed by: eivind Notes: svn path=/head/; revision=44979
* Version 3.0: January 1, 1999Brian Somers1999-02-271-44/+198
| | | | | | | | | | | - 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 Dillon1998-12-141-3/+14
| | | | | | | | | | | | 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/+7
| | | | | | | | could I find anyone to test it, so please report any problems to me. Notes: svn path=/head/; revision=37131
* Quieten gcc 2.8.1Brian Somers1998-06-101-2/+2
| | | | Notes: svn path=/head/; revision=36834
* Primary verison of NetBIOS over TCP/IP. Now you can connect WindowsAtsushi Murai1998-05-241-3/+36
| | | | | | | | | | 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
* o Support a compile-time -DNO_FW_PUNCH for portabilityBrian Somers1998-04-191-2/+2
| | | | | | | | | (and those of us that don't want the functionality). o Don't assume sizeof(long) == 4. Ok'd by: Charles Mott <cmott@srv.net> Notes: svn path=/head/; revision=35314
* Teach libalias to work with IPFW firewalls (controlled by a flag).Eivind Eklund1998-01-091-10/+28
| | | | | | | | Obtained from: Yes development tree (+ 10 lines of patches from Charles Mott, original libalias author) Notes: svn path=/head/; revision=32377
* Upgrade to 2.4 (Fix -PKT_ALIAS_UNREGISTERED_ONLY)Brian Somers1997-09-061-1/+1
| | | | | | | | | | Submitted by: Charles Mott <cmott@srv.net> Add __libalias_version so that ppp can derive the correct library name for dlopen() Notes: svn path=/head/; revision=29162
* Update to version 2.2. Only the PacketAlias*()Brian Somers1997-08-031-67/+21
| | | | | | | | | 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/+1142
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
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-03 16:46:41 +0000