84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
|
|
* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
|
|
*
|
|
* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that the above copyright notice and this paragraph are
|
|
* duplicated in all such forms and that any documentation,
|
|
* advertising materials, and other materials related to such
|
|
* distribution and use acknowledge that the software was developed
|
|
* by the Internet Initiative Japan. The name of the
|
|
* IIJ may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* $Id: filter.h,v 1.3 1995/03/11 15:18:41 amurai Exp $
|
|
*
|
|
* TODO:
|
|
*/
|
|
|
|
#ifndef _FILTER_H_
|
|
#define _FILTER_H_
|
|
|
|
#define STREQ(a,b) (strcmp(a,b) == 0)
|
|
/*
|
|
* Actions
|
|
*/
|
|
#define A_NONE 0
|
|
#define A_PERMIT 1
|
|
#define A_DENY 2
|
|
#define A_MASK 3
|
|
#define A_UHOST 4
|
|
#define A_UPORT 8
|
|
|
|
/*
|
|
* Known protocols
|
|
*/
|
|
#define P_NONE 0
|
|
#define P_TCP 1
|
|
#define P_UDP 2
|
|
#define P_ICMP 3
|
|
|
|
/*
|
|
* Operations
|
|
*/
|
|
#define OP_NONE 0
|
|
#define OP_EQ 1
|
|
#define OP_GT 2
|
|
#define OP_LT 4
|
|
|
|
struct filterent {
|
|
int action; /* Filtering action */
|
|
int swidth; /* Effective source address width */
|
|
struct in_addr saddr; /* Source address */
|
|
struct in_addr smask; /* Source address mask */
|
|
int dwidth; /* Effective destination address width */
|
|
struct in_addr daddr; /* Destination address */
|
|
struct in_addr dmask; /* Destination address mask */
|
|
int proto; /* Protocol */
|
|
struct {
|
|
short srcop;
|
|
u_short srcport;
|
|
short dstop;
|
|
u_short dstport;
|
|
int estab;
|
|
} opt;
|
|
};
|
|
|
|
#define MAXFILTERS 20
|
|
|
|
#define FL_IN 0
|
|
#define FL_OUT 1
|
|
#define FL_DIAL 2
|
|
#define FL_KEEP 3
|
|
struct filterent ifilters[MAXFILTERS];
|
|
struct filterent ofilters[MAXFILTERS];
|
|
struct filterent dfilters[MAXFILTERS];
|
|
struct filterent afilters[MAXFILTERS]; /* keep Alive packet filter */
|
|
|
|
extern int ParseAddr __P((int, char **, struct in_addr *, struct in_addr *, int*));
|
|
#endif _FILTER_H_
|