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freebsd-skq/lib/libalias/alias_local.h

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Add BSD-style copyright headers Approved by: Charles Mott <cmott@scientech.com>
2001-06-04 15:09:51 +00:00
/*-
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.
*
* $FreeBSD$
*/
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
/*
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_local.h contains the function prototypes for alias.c,
* alias_db.c, alias_util.c and alias_ftp.c, alias_irc.c (as well
* as any future add-ons). It also includes macros, globals and
* struct definitions shared by more than one alias*.c file.
*
* This include file is intended to be used only within the aliasing
* software. Outside world interfaces are defined in alias.h
*
* This software is placed into the public domain with no restrictions
* on its distribution.
*
Remove trailing whitespace
2002-07-01 11:19:40 +00:00
* Initial version: August, 1996 (cjm)
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
*
* <updated several times by original author and Eivind Eklund>
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
*/
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_LOCAL_H_
#define _ALIAS_LOCAL_H_
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
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
#include <sys/queue.h>
/* Sizes of input and output link tables */
#define LINK_TABLE_OUT_SIZE 101
#define LINK_TABLE_IN_SIZE 4001
struct proxy_entry;
struct libalias {
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
LIST_ENTRY(libalias) instancelist;
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
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 packetAliasMode; /* Mode flags */
/* - documented in alias.h */
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
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 aliasAddress; /* Address written onto source */
/* field of IP packet. */
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
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 targetAddress; /* IP address incoming packets */
/* are sent to if no aliasing */
/* link already exists */
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
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 nullAddress; /* Used as a dummy parameter for */
/* some function calls */
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
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
LIST_HEAD (, alias_link) linkTableOut[LINK_TABLE_OUT_SIZE];
/* Lookup table of pointers to */
/* chains of link records. Each */
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
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.
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LIST_HEAD (, alias_link) linkTableIn[LINK_TABLE_IN_SIZE];
/* link record is doubly indexed */
/* into input and output lookup */
/* tables. */
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
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
/* Link statistics */
int icmpLinkCount;
int udpLinkCount;
int tcpLinkCount;
int pptpLinkCount;
int protoLinkCount;
int fragmentIdLinkCount;
int fragmentPtrLinkCount;
int sockCount;
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
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 cleanupIndex; /* Index to chain of link table */
/* being inspected for old links */
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
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 timeStamp; /* System time in seconds for */
/* current packet */
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
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 lastCleanupTime; /* Last time
* IncrementalCleanup() */
/* was called */
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
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 houseKeepingResidual; /* used by HouseKeeping() */
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
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 deleteAllLinks; /* If equal to zero, DeleteLink() */
/* will not remove permanent links */
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
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
FILE *monitorFile; /* File descriptor for link */
/* statistics monitoring file */
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
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 newDefaultLink; /* Indicates if a new aliasing */
/* link has been created after a */
/* call to PacketAliasIn/Out(). */
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
#ifndef NO_FW_PUNCH
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2004-03-16 21:30:41 +00:00
int fireWallFD; /* File descriptor to be able to */
/* control firewall. Opened by */
/* PacketAliasSetMode on first */
/* setting the PKT_ALIAS_PUNCH_FW */
/* flag. */
int fireWallBaseNum; /* The first firewall entry
* free for our use */
int fireWallNumNums; /* How many entries can we
* use? */
int fireWallActiveNum; /* Which entry did we last
* use? */
char *fireWallField; /* bool array for entries */
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
#endif
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
unsigned int skinnyPort; /* TCP port used by the Skinny */
/* protocol. */
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 proxy_entry *proxyList;
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 true_addr; /* in network byte order. */
u_short true_port; /* in host byte order. */
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
};
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
/* Macros */
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
/*
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
* The following macro is used to update an
* internet checksum. "delta" is a 32-bit
* accumulation of all the changes to the
* checksum (adding in new 16-bit words and
* subtracting out old words), and "cksum"
* is the checksum value to be updated.
*/
#define ADJUST_CHECKSUM(acc, cksum) \
do { \
acc += cksum; \
if (acc < 0) { \
acc = -acc; \
acc = (acc >> 16) + (acc & 0xffff); \
acc += acc >> 16; \
cksum = (u_short) ~acc; \
} else { \
acc = (acc >> 16) + (acc & 0xffff); \
acc += acc >> 16; \
cksum = (u_short) acc; \
} \
} while (0)
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
/* Prototypes */
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
/* General utilities */
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
u_short IpChecksum(struct ip *_pip);
u_short TcpChecksum(struct ip *_pip);
void
Deal with aliasing warnings. Reviewed by: ru Approved by: silence on the lists
2004-03-31 21:32:58 +00:00
DifferentialChecksum(u_short * _cksum, void * _new, void * _old, int _n);
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
/* Internal data access */
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
FindIcmpIn(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
u_short _id_alias, int _create);
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
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
FindIcmpOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
u_short _id, int _create);
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
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
FindFragmentIn1(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
u_short _ip_id);
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
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
FindFragmentIn2(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
u_short _ip_id);
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
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
AddFragmentPtrLink(struct libalias *la, struct in_addr _dst_addr, u_short _ip_id);
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
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
FindFragmentPtr(struct libalias *la, struct in_addr _dst_addr, u_short _ip_id);
Add support for multiple PPTP sessions: - new API function: PacketAliasRedirectPptp() - new mode bit: PKT_ALIAS_DENY_PPTP Please see manual page for details.
2000-04-18 10:18:21 +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
FindProtoIn(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
u_char _proto);
Add support for multiple PPTP sessions: - new API function: PacketAliasRedirectPptp() - new mode bit: PKT_ALIAS_DENY_PPTP Please see manual page for details.
2000-04-18 10:18:21 +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
FindProtoOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
u_char _proto);
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
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
FindUdpTcpIn(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
u_short _dst_port, u_short _alias_port, u_char _proto, int _create);
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
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
FindUdpTcpOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
u_short _src_port, u_short _dst_port, u_char _proto, int _create);
Added true support for PPTP aliasing. Some nice features include: - 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>
2000-06-20 11:41:48 +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
AddPptp(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
struct in_addr _alias_addr, u_int16_t _src_call_id);
Added true support for PPTP aliasing. Some nice features include: - 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>
2000-06-20 11:41:48 +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
FindPptpOutByCallId(struct libalias *la, struct in_addr _src_addr,
struct in_addr _dst_addr, u_int16_t _src_call_id);
A significant rewrite of PPTP aliasing code. 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>
2000-10-30 12:39:41 +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
FindPptpInByCallId(struct libalias *la, struct in_addr _dst_addr,
struct in_addr _alias_addr, u_int16_t _dst_call_id);
A significant rewrite of PPTP aliasing code. 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>
2000-10-30 12:39:41 +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
FindPptpOutByPeerCallId(struct libalias *la, struct in_addr _src_addr,
struct in_addr _dst_addr, u_int16_t _dst_call_id);
A significant rewrite of PPTP aliasing code. 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>
2000-10-30 12:39:41 +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
FindPptpInByPeerCallId(struct libalias *la, struct in_addr _dst_addr,
struct in_addr _alias_addr, u_int16_t _alias_call_id);
Add address translation support for RTSP/RTP used by RealPlayer and Quicktime streaming media applications. Add a BUGS section to the man page. Submitted by: Erik Salander <erik@whistle.com>
2000-07-26 23:15:46 +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
FindRtspOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
u_short _src_port, u_short _alias_port, u_char _proto);
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
struct in_addr
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
FindOriginalAddress(struct libalias *la, struct in_addr _alias_addr);
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
struct in_addr
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
FindAliasAddress(struct libalias *la, struct in_addr _original_addr);
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
/* External data access/modification */
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
FindNewPortGroup(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
u_short _src_port, u_short _dst_port, u_short _port_count,
u_char _proto, u_char _align);
void GetFragmentAddr(struct alias_link *_link, struct in_addr *_src_addr);
void SetFragmentAddr(struct alias_link *_link, struct in_addr _src_addr);
void GetFragmentPtr(struct alias_link *_link, char **_fptr);
void SetFragmentPtr(struct alias_link *_link, char *fptr);
void SetStateIn(struct alias_link *_link, int _state);
void SetStateOut(struct alias_link *_link, int _state);
int GetStateIn (struct alias_link *_link);
int GetStateOut(struct alias_link *_link);
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
struct in_addr
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
GetOriginalAddress(struct alias_link *_link);
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
struct in_addr
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
GetDestAddress(struct alias_link *_link);
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
struct in_addr
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
GetAliasAddress(struct alias_link *_link);
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
struct in_addr
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
GetDefaultAliasAddress(struct libalias *la);
void SetDefaultAliasAddress(struct libalias *la, struct in_addr _alias_addr);
u_short GetOriginalPort(struct alias_link *_link);
u_short GetAliasPort(struct alias_link *_link);
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
struct in_addr
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
GetProxyAddress(struct alias_link *_link);
void SetProxyAddress(struct alias_link *_link, struct in_addr _addr);
u_short GetProxyPort(struct alias_link *_link);
void SetProxyPort(struct alias_link *_link, u_short _port);
void SetAckModified(struct alias_link *_link);
int GetAckModified(struct alias_link *_link);
int GetDeltaAckIn(struct ip *_pip, struct alias_link *_link);
int GetDeltaSeqOut(struct ip *_pip, struct alias_link *_link);
void AddSeq (struct ip *_pip, struct alias_link *_link, int _delta);
void SetExpire (struct alias_link *_link, int _expire);
void ClearCheckNewLink(struct libalias *la);
void SetProtocolFlags(struct alias_link *_link, int _pflags);
int GetProtocolFlags(struct alias_link *_link);
void SetDestCallId(struct alias_link *_link, u_int16_t _cid);
Don't call PunchFWHole() ifdef NO_FW_PUNCH Pointed out by: "Steve Sims" <SimsS@IBM.Net>
1998-06-06 21:52:37 +00:00
#ifndef NO_FW_PUNCH
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 PunchFWHole(struct alias_link *_link);
Don't call PunchFWHole() ifdef NO_FW_PUNCH Pointed out by: "Steve Sims" <SimsS@IBM.Net>
1998-06-06 21:52:37 +00:00
#endif
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
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
/* Housekeeping function */
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 HouseKeeping(struct libalias *);
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
/* Tcp specfic routines */
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 Suppress flexelint warnings */
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
/* FTP 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
void
AliasHandleFtpOut(struct libalias *la, struct ip *_pip, struct alias_link *_link,
int _maxpacketsize);
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
/* IRC 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
void
AliasHandleIrcOut(struct libalias *la, struct ip *_pip, struct alias_link *_link,
int _maxsize);
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
Add address translation support for RTSP/RTP used by RealPlayer and Quicktime streaming media applications. Add a BUGS section to the man page. Submitted by: Erik Salander <erik@whistle.com>
2000-07-26 23:15:46 +00:00
/* RTSP 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
void
AliasHandleRtspOut(struct libalias *la, struct ip *_pip, struct alias_link *_link,
int _maxpacketsize);
Add address translation support for RTSP/RTP used by RealPlayer and Quicktime streaming media applications. Add a BUGS section to the man page. Submitted by: Erik Salander <erik@whistle.com>
2000-07-26 23:15:46 +00:00
Added true support for PPTP aliasing. Some nice features include: - 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>
2000-06-20 11:41:48 +00:00
/* PPTP 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
void AliasHandlePptpOut(struct libalias *la, struct ip *_pip, struct alias_link *_link);
void AliasHandlePptpIn(struct libalias *la, struct ip *_pip, struct alias_link *_link);
int AliasHandlePptpGreOut(struct libalias *la, struct ip *_pip);
int AliasHandlePptpGreIn(struct libalias *la, struct ip *_pip);
Added true support for PPTP aliasing. Some nice features include: - 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>
2000-06-20 11:41:48 +00:00
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
/* NetBIOS 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
AliasHandleUdpNbt(struct libalias *la, struct ip *_pip, struct alias_link *_link,
struct in_addr *_alias_address, u_short _alias_port);
int
AliasHandleUdpNbtNS(struct libalias *la, struct ip *_pip, struct alias_link *_link,
struct in_addr *_alias_address, u_short * _alias_port,
struct in_addr *_original_address, u_short * _original_port);
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
/* CUSeeMe 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
void AliasHandleCUSeeMeOut(struct libalias *la, struct ip *_pip, struct alias_link *_link);
void AliasHandleCUSeeMeIn(struct libalias *la, struct ip *_pip, struct in_addr _original_addr);
Primary verison of NetBIOS over TCP/IP. Now you can connect Windows DOMAIN as DOMAIN user through NAT function. See also RFC1002 for futher detail of SMB structure. Submitted by: Atsushi Murai <amurai@spec.co.jp>
1998-05-24 03:03:10 +00:00
Add Cisco Skinny Station protocol support to libalias, natd, and ppp. 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
2003-09-23 07:41:55 +00:00
/* Skinny 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
void AliasHandleSkinny(struct libalias *la, struct ip *_pip, struct alias_link *_link);
Add Cisco Skinny Station protocol support to libalias, natd, and ppp. 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
2003-09-23 07:41:55 +00:00
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
/* Transparent proxy 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
ProxyCheck(struct libalias *la, struct ip *_pip, struct in_addr *_proxy_server_addr,
u_short * _proxy_server_port);
void
ProxyModify(struct libalias *la, struct alias_link *_link, struct ip *_pip,
int _maxpacketsize, int _proxy_type);
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
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
enum alias_tcp_state {
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_TCP_STATE_NOT_CONNECTED,
ALIAS_TCP_STATE_CONNECTED,
ALIAS_TCP_STATE_DISCONNECTED
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
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
/*lint -restore */
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
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_LOCAL_H_ */
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