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freebsd-dev/sys/netinet/libalias/alias.h

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Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/* lint -save -library Flexelint comment for external headers */
Add BSD-style copyright headers Approved by: Charles Mott <cmott@scientech.com>
2001-06-04 15:09:51 +00:00
/*-
sys: general adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
2017-11-27 15:23:17 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
cmott@scientech.com -> cm@linktel.net Requested by: Charles Mott <cmott@scientech.com>
2001-11-03 11:34:09 +00:00
* Copyright (c) 2001 Charles Mott <cm@linktel.net>
Add BSD-style copyright headers Approved by: Charles Mott <cmott@scientech.com>
2001-06-04 15:09:51 +00:00
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
Summer of Code 2005: improve libalias - part 1 of 2 With the first part of my previous Summer of Code work, we get: -made libalias modular: -support for 'particular' protocols (like ftp/irc/etcetc) is no more hardcoded inside libalias, but it's available through external modules loadable at runtime -modules are available both in kernel (/boot/kernel/alias_*.ko) and user land (/lib/libalias_*) -protocols/applications modularized are: cuseeme, ftp, irc, nbt, pptp, skinny and smedia -added logging support for kernel side -cleanup After a buildworld, do a 'mergemaster -i' to install the file libalias.conf in /etc or manually copy it. During startup (and after every HUP signal) user land applications running the new libalias will try to read a file in /etc called libalias.conf: that file contains the list of modules to load. User land applications affected by this commit are ppp and natd: if libalias.conf is present in /etc you won't notice any difference. The only kernel land bit affected by this commit is ng_nat: if you are using ng_nat, and it doesn't correctly handle ftp/irc/etcetc sessions anymore, remember to kldload the correspondent module (i.e. kldload alias_ftp). General information and details about the inner working are available in the libalias man page under the section 'MODULAR ARCHITECTURE (AND ipfw(4) SUPPORT)'. NOTA BENE: this commit affects _ONLY_ libalias, ipfw in-kernel nat support will be part of the next libalias-related commit. Approved by: glebius Reviewed by: glebius, ru
2006-09-26 23:26:53 +00:00
/*
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
* Alias.h defines the outside world interfaces for the packet aliasing
* software.
Remove trailing whitespace
2002-07-01 11:19:40 +00:00
*
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
* This software is placed into the public domain with no restrictions on its
* distribution.
*/
Create the alias library. This is currently only used by 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>
1997-05-23 04:41:31 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
#ifndef _ALIAS_H_
#define _ALIAS_H_
Create the alias library. This is currently only used by 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>
1997-05-23 04:41:31 +00:00
Summer of Code 2005: improve libalias - part 1 of 2 With the first part of my previous Summer of Code work, we get: -made libalias modular: -support for 'particular' protocols (like ftp/irc/etcetc) is no more hardcoded inside libalias, but it's available through external modules loadable at runtime -modules are available both in kernel (/boot/kernel/alias_*.ko) and user land (/lib/libalias_*) -protocols/applications modularized are: cuseeme, ftp, irc, nbt, pptp, skinny and smedia -added logging support for kernel side -cleanup After a buildworld, do a 'mergemaster -i' to install the file libalias.conf in /etc or manually copy it. During startup (and after every HUP signal) user land applications running the new libalias will try to read a file in /etc called libalias.conf: that file contains the list of modules to load. User land applications affected by this commit are ppp and natd: if libalias.conf is present in /etc you won't notice any difference. The only kernel land bit affected by this commit is ng_nat: if you are using ng_nat, and it doesn't correctly handle ftp/irc/etcetc sessions anymore, remember to kldload the correspondent module (i.e. kldload alias_ftp). General information and details about the inner working are available in the libalias man page under the section 'MODULAR ARCHITECTURE (AND ipfw(4) SUPPORT)'. NOTA BENE: this commit affects _ONLY_ libalias, ipfw in-kernel nat support will be part of the next libalias-related commit. Approved by: glebius Reviewed by: glebius, ru
2006-09-26 23:26:53 +00:00
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#define LIBALIAS_BUF_SIZE 128
When used in kernel define NO_FW_PUNCH, NO_LOGGING, NO_USE_SOCKETS.
2005-05-05 21:53:17 +00:00
#ifdef _KERNEL
/*
* The kernel version of libalias does not support these features.
*/
#define NO_FW_PUNCH
#define NO_USE_SOCKETS
#endif
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/*
* The external interface to libalias, the packet aliasing engine.
*
* There are two sets of functions:
*
* PacketAlias*() the old API which doesn't take an instance pointer
* and therefore can only have one packet engine at a time.
*
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
* LibAlias*() the new API which takes as first argument a pointer to
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
* the instance of the packet aliasing engine.
*
* The functions otherwise correspond to each other one for one, except
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
* for the LibAliasUnaliasOut()/PacketUnaliasOut() function which were
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
* were misnamed in the old API.
*/
/*
* The instance structure
*/
struct libalias;
/*
* An anonymous structure, a pointer to which is returned from
* PacketAliasRedirectAddr(), PacketAliasRedirectPort() or
* PacketAliasRedirectProto(), passed to PacketAliasAddServer(),
* and freed by PacketAliasRedirectDelete().
*/
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
struct alias_link;
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/* Initialization and control functions. */
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
struct libalias *LibAliasInit(struct libalias *);
void LibAliasSetAddress(struct libalias *, struct in_addr _addr);
void LibAliasSetFWBase(struct libalias *, unsigned int _base, unsigned int _num);
void LibAliasSetSkinnyPort(struct libalias *, unsigned int _port);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
unsigned int
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
LibAliasSetMode(struct libalias *, unsigned int _flags, unsigned int _mask);
void LibAliasUninit(struct libalias *);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/* Packet Handling functions. */
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
int LibAliasIn (struct libalias *, char *_ptr, int _maxpacketsize);
int LibAliasOut(struct libalias *, char *_ptr, int _maxpacketsize);
Add LibAliasOutTry() which checks a packet for a hit in the tables, but does not create a new entry if none is found.
2004-07-04 12:53:07 +00:00
int LibAliasOutTry(struct libalias *, char *_ptr, int _maxpacketsize, int _create);
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
int LibAliasUnaliasOut(struct libalias *, char *_ptr, int _maxpacketsize);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/* Port and address redirection functions. */
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
int
Make libalias WARNS?=6-clean. This mostly involves renaming variables 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.
2004-07-05 11:10:57 +00:00
LibAliasAddServer(struct libalias *, struct alias_link *_lnk,
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
struct in_addr _addr, unsigned short _port);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
struct alias_link *
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
LibAliasRedirectAddr(struct libalias *, struct in_addr _src_addr,
struct in_addr _alias_addr);
Make libalias WARNS?=6-clean. This mostly involves renaming variables 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.
2004-07-05 11:10:57 +00:00
int LibAliasRedirectDynamic(struct libalias *, struct alias_link *_lnk);
void LibAliasRedirectDelete(struct libalias *, struct alias_link *_lnk);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
struct alias_link *
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
LibAliasRedirectPort(struct libalias *, struct in_addr _src_addr,
unsigned short _src_port, struct in_addr _dst_addr,
unsigned short _dst_port, struct in_addr _alias_addr,
unsigned short _alias_port, unsigned char _proto);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
struct alias_link *
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
LibAliasRedirectProto(struct libalias *, struct in_addr _src_addr,
struct in_addr _dst_addr, struct in_addr _alias_addr,
unsigned char _proto);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/* Fragment Handling functions. */
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
void LibAliasFragmentIn(struct libalias *, char *_ptr, char *_ptr_fragment);
char *LibAliasGetFragment(struct libalias *, char *_ptr);
int LibAliasSaveFragment(struct libalias *, char *_ptr);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/* Miscellaneous functions. */
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
int LibAliasCheckNewLink(struct libalias *);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
unsigned short
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
LibAliasInternetChecksum(struct libalias *, unsigned short *_ptr, int _nbytes);
void LibAliasSetTarget(struct libalias *, struct in_addr _target_addr);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/* Transparent proxying routines. */
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
int LibAliasProxyRule(struct libalias *, const char *_cmd);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
Summer of Code 2005: improve libalias - part 1 of 2 With the first part of my previous Summer of Code work, we get: -made libalias modular: -support for 'particular' protocols (like ftp/irc/etcetc) is no more hardcoded inside libalias, but it's available through external modules loadable at runtime -modules are available both in kernel (/boot/kernel/alias_*.ko) and user land (/lib/libalias_*) -protocols/applications modularized are: cuseeme, ftp, irc, nbt, pptp, skinny and smedia -added logging support for kernel side -cleanup After a buildworld, do a 'mergemaster -i' to install the file libalias.conf in /etc or manually copy it. During startup (and after every HUP signal) user land applications running the new libalias will try to read a file in /etc called libalias.conf: that file contains the list of modules to load. User land applications affected by this commit are ppp and natd: if libalias.conf is present in /etc you won't notice any difference. The only kernel land bit affected by this commit is ng_nat: if you are using ng_nat, and it doesn't correctly handle ftp/irc/etcetc sessions anymore, remember to kldload the correspondent module (i.e. kldload alias_ftp). General information and details about the inner working are available in the libalias man page under the section 'MODULAR ARCHITECTURE (AND ipfw(4) SUPPORT)'. NOTA BENE: this commit affects _ONLY_ libalias, ipfw in-kernel nat support will be part of the next libalias-related commit. Approved by: glebius Reviewed by: glebius, ru
2006-09-26 23:26:53 +00:00
/* Module handling API */
int LibAliasLoadModule(char *);
int LibAliasUnLoadAllModule(void);
int LibAliasRefreshModules(void);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
Remove m_megapullup from ng_nat and put it under libalias. Approved by: gleb
2006-12-01 16:27:11 +00:00
/* Mbuf helper function. */
struct mbuf *m_megapullup(struct mbuf *, int);
Mostly mechanical rework of libalias: 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.
2004-01-17 10:52:21 +00:00
/*
* Mode flags and other constants.
*/
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/* Mode flags, set using PacketAliasSetMode() */
Create the alias library. This is currently only used by 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>
1997-05-23 04:41:31 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*
* If PKT_ALIAS_LOG is set, a message will be printed to /var/log/alias.log
* every time a link is created or deleted. This is useful for debugging.
*/
#define PKT_ALIAS_LOG 0x01
Update to version 2.2. Only the PacketAlias*() functions should now be used. The old 2.1 stuff is there for backwards compatability. Submitted by: Charles Mott <cmott@snake.srv.net>
1997-08-03 18:20:03 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*
* If PKT_ALIAS_DENY_INCOMING is set, then incoming connections (e.g. to ftp,
* telnet or web servers will be prevented by the aliasing mechanism.
*/
#define PKT_ALIAS_DENY_INCOMING 0x02
Update to version 2.2. Only the PacketAlias*() functions should now be used. The old 2.1 stuff is there for backwards compatability. Submitted by: Charles Mott <cmott@snake.srv.net>
1997-08-03 18:20:03 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*
* If PKT_ALIAS_SAME_PORTS is set, packets will be attempted sent from the
* same port as they originated on. This allows e.g. rsh to work *99% of the
* time*, but _not_ 100% (it will be slightly flakey instead of not working
* at all). This mode bit is set by PacketAliasInit(), so it is a default
* mode of operation.
*/
#define PKT_ALIAS_SAME_PORTS 0x04
Teach libalias to work with IPFW firewalls (controlled by a flag). Obtained from: Yes development tree (+ 10 lines of patches from Charles Mott, original libalias author)
1998-01-09 21:13:35 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*
* If PKT_ALIAS_USE_SOCKETS is set, then when partially specified links (e.g.
* destination port and/or address is zero), the packet aliasing engine will
* attempt to allocate a socket for the aliasing port it chooses. This will
* avoid interference with the host machine. Fully specified links do not
* require this. This bit is set after a call to PacketAliasInit(), so it is
* a default mode of operation.
*/
Add NO_USE_SOCKETS knob, which cuts off functionality socket binding.
2005-05-05 20:25:12 +00:00
#ifndef NO_USE_SOCKETS
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
#define PKT_ALIAS_USE_SOCKETS 0x08
Add NO_USE_SOCKETS knob, which cuts off functionality socket binding.
2005-05-05 20:25:12 +00:00
#endif
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*-
* If PKT_ALIAS_UNREGISTERED_ONLY is set, then only packets with
* unregistered source addresses will be aliased. Private
* addresses are those in the following ranges:
*
* 10.0.0.0 -> 10.255.255.255
* 172.16.0.0 -> 172.31.255.255
* 192.168.0.0 -> 192.168.255.255
*/
#define PKT_ALIAS_UNREGISTERED_ONLY 0x10
Update to version 2.2. Only the PacketAlias*() functions should now be used. The old 2.1 stuff is there for backwards compatability. Submitted by: Charles Mott <cmott@snake.srv.net>
1997-08-03 18:20:03 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*
* If PKT_ALIAS_RESET_ON_ADDR_CHANGE is set, then the table of dynamic
* aliasing links will be reset whenever PacketAliasSetAddress() changes the
* default aliasing address. If the default aliasing address is left
* unchanged by this function call, then the table of dynamic aliasing links
* will be left intact. This bit is set after a call to PacketAliasInit().
*/
#define PKT_ALIAS_RESET_ON_ADDR_CHANGE 0x20
Update to version 2.2. Only the PacketAlias*() functions should now be used. The old 2.1 stuff is there for backwards compatability. Submitted by: Charles Mott <cmott@snake.srv.net>
1997-08-03 18:20:03 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*
* If PKT_ALIAS_PROXY_ONLY is set, then NAT will be disabled and only
* transparent proxying is performed.
*/
#define PKT_ALIAS_PROXY_ONLY 0x40
Teach libalias to work with IPFW firewalls (controlled by a flag). Obtained from: Yes development tree (+ 10 lines of patches from Charles Mott, original libalias author)
1998-01-09 21:13:35 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/*
* If PKT_ALIAS_REVERSE is set, the actions of PacketAliasIn() and
* PacketAliasOut() are reversed.
*/
#define PKT_ALIAS_REVERSE 0x80
Version 3.0: January 1, 1999 - 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>
1999-02-27 02:16:01 +00:00
Sort alias mode flags in the increasing order.
2011-06-14 12:06:38 +00:00
#ifndef NO_FW_PUNCH
/*
* If PKT_ALIAS_PUNCH_FW is set, active FTP and IRC DCC connections will
* create a 'hole' in the firewall to allow the transfers to work. The
* ipfw rule number that the hole is created with is controlled by
* PacketAliasSetFWBase(). The hole will be attached to that
* particular alias_link, so when the link goes away the hole is deleted.
*/
#define PKT_ALIAS_PUNCH_FW 0x100
#endif
Implement "global" mode for ipfw nat. It is similar to natd(8) "globalport" option for multiple NAT instances. If ipfw rule contains "global" keyword instead of nat_number, then for each outgoing packet ipfw_nat looks up translation state in all configured nat instances. If an entry is found, packet aliased according to that entry, otherwise packet is passed unchanged. User can specify "skip_global" option in NAT configuration to exclude an instance from the lookup in global mode. PR: kern/157867 Submitted by: Alexander V. Chernikov (previous version) Tested by: Eugene Grosbein
2011-06-14 13:35:24 +00:00
/*
* If PKT_ALIAS_SKIP_GLOBAL is set, nat instance is not checked for matching
* states in 'ipfw nat global' rule.
*/
#define PKT_ALIAS_SKIP_GLOBAL 0x200
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/* Function return codes. */
#define PKT_ALIAS_ERROR -1
#define PKT_ALIAS_OK 1
#define PKT_ALIAS_IGNORED 2
#define PKT_ALIAS_UNRESOLVED_FRAGMENT 3
#define PKT_ALIAS_FOUND_HEADER_FRAGMENT 4
Version 3.0: January 1, 1999 - 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>
1999-02-27 02:16:01 +00:00
Run through indent(1) so I can read the code without getting a headache. The result isn't quite knf, but it's knfer than the original, and far more consistent.
2004-03-16 21:30:41 +00:00
#endif /* !_ALIAS_H_ */
Create the alias library. This is currently only used by 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>
1997-05-23 04:41:31 +00:00
Make header files conform to style(9). Reviewed by (*): bde (*) alias_local.h only got a cursory glance.
2001-03-25 12:05:10 +00:00
/* lint -restore */
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