781f5bff10
Obtained from: Yes development tree (+ 10 lines of patches from Charles Mott, original libalias author)
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/* -*- mode: c; tab-width: 3; c-basic-offset: 3; -*-
|
|
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 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.
|
|
|
|
Initial version: August, 1996 (cjm)
|
|
|
|
<updated several times by original author and Eivind Eiklund>
|
|
*/
|
|
#ifndef ALIAS_LOCAL_H
|
|
#define ALIAS_LOCAL_H
|
|
|
|
extern int packetAliasMode;
|
|
|
|
struct alias_link;
|
|
|
|
/* General utilities */
|
|
u_short IpChecksum(struct ip *);
|
|
u_short TcpChecksum(struct ip *);
|
|
void DifferentialChecksum(u_short *, u_short *, u_short *, int);
|
|
|
|
/* Internal data access */
|
|
struct alias_link *
|
|
FindIcmpIn(struct in_addr, struct in_addr, u_short);
|
|
|
|
struct alias_link *
|
|
FindIcmpOut(struct in_addr, struct in_addr, u_short);
|
|
|
|
struct alias_link *
|
|
FindFragmentIn1(struct in_addr, struct in_addr, u_short);
|
|
|
|
struct alias_link *
|
|
FindFragmentIn2(struct in_addr, struct in_addr, u_short);
|
|
|
|
struct alias_link *
|
|
AddFragmentPtrLink(struct in_addr, u_short);
|
|
|
|
struct alias_link *
|
|
FindFragmentPtr(struct in_addr, u_short);
|
|
|
|
struct alias_link *
|
|
FindUdpTcpIn (struct in_addr, struct in_addr, u_short, u_short, u_char);
|
|
|
|
struct alias_link *
|
|
FindUdpTcpOut(struct in_addr, struct in_addr, u_short, u_short, u_char);
|
|
|
|
struct in_addr
|
|
FindOriginalAddress(struct in_addr);
|
|
|
|
struct in_addr
|
|
FindAliasAddress(struct in_addr);
|
|
|
|
/* External data access/modification */
|
|
void GetFragmentAddr(struct alias_link *, struct in_addr *);
|
|
void SetFragmentAddr(struct alias_link *, struct in_addr);
|
|
void GetFragmentPtr(struct alias_link *, char **);
|
|
void SetFragmentPtr(struct alias_link *, char *);
|
|
void SetStateIn(struct alias_link *, int);
|
|
void SetStateOut(struct alias_link *, int);
|
|
int GetStateIn(struct alias_link *);
|
|
int GetStateOut(struct alias_link *);
|
|
struct in_addr GetOriginalAddress(struct alias_link *);
|
|
struct in_addr GetDestAddress(struct alias_link *);
|
|
struct in_addr GetAliasAddress(struct alias_link *);
|
|
struct in_addr GetDefaultAliasAddress(void);
|
|
void SetDefaultAliasAddress(struct in_addr);
|
|
u_short GetOriginalPort(struct alias_link *);
|
|
u_short GetAliasPort(struct alias_link *);
|
|
void SetAckModified(struct alias_link *);
|
|
int GetAckModified(struct alias_link *);
|
|
int GetDeltaAckIn(struct ip *, struct alias_link *);
|
|
int GetDeltaSeqOut(struct ip *, struct alias_link *);
|
|
void AddSeq(struct ip *, struct alias_link *, int);
|
|
void SetExpire(struct alias_link *, int);
|
|
void ClearCheckNewLink(void);
|
|
void PunchFWHole(struct alias_link *);
|
|
|
|
|
|
/* Housekeeping function */
|
|
void HouseKeeping(void);
|
|
|
|
/* Tcp specfic routines */
|
|
/*lint -save -library Suppress flexelint warnings */
|
|
void AliasHandleFtpOut(struct ip *, struct alias_link *, int);
|
|
void AliasHandleIrcOut(struct ip *pip, struct alias_link *link, int maxsize );
|
|
|
|
enum alias_tcp_state {
|
|
ALIAS_TCP_STATE_NOT_CONNECTED,
|
|
ALIAS_TCP_STATE_CONNECTED,
|
|
ALIAS_TCP_STATE_DISCONNECTED
|
|
};
|
|
|
|
/*lint -restore */
|
|
#endif /* defined(ALIAS_LOCAL_H) */
|