mirror of
https://github.com/the-tcpdump-group/tcpdump.git
synced 2024-11-27 20:14:12 +08:00
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/* $NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that: (1) source code distributions
|
|
* retain the above copyright notice and this paragraph in its entirety, (2)
|
|
* distributions including binary code include the above copyright notice and
|
|
* this paragraph in its entirety in the documentation or other materials
|
|
* provided with the distribution, and (3) all advertising materials mentioning
|
|
* features or use of this software display the following acknowledgement:
|
|
* ``This product includes software developed by the University of California,
|
|
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
|
|
* the University nor the names of its contributors may 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
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] =
|
|
"@(#) $Header: /tcpdump/master/tcpdump/print-ah.c,v 1.14 2000-12-12 09:58:40 itojun Exp $ (LBL)";
|
|
#endif
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <netinet/in.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "ah.h"
|
|
|
|
#include "interface.h"
|
|
#include "addrtoname.h"
|
|
|
|
int
|
|
ah_print(register const u_char *bp, register const u_char *bp2)
|
|
{
|
|
register const struct ah *ah;
|
|
register const u_char *ep;
|
|
int sumlen;
|
|
u_int32_t spi;
|
|
|
|
ah = (struct ah *)bp;
|
|
ep = snapend; /* 'ep' points to the end of available data. */
|
|
|
|
if ((u_char *)(ah + 1) >= ep - sizeof(struct ah))
|
|
goto trunc;
|
|
|
|
sumlen = ah->ah_len << 2;
|
|
spi = (u_int32_t)ntohl(ah->ah_spi);
|
|
|
|
printf("AH(spi=0x%08x", spi);
|
|
if (vflag)
|
|
printf(",sumlen=%d", sumlen);
|
|
printf(",seq=0x%x", (u_int32_t)ntohl(*(u_int32_t *)(ah + 1)));
|
|
if (bp + sizeof(struct ah) + sumlen > ep)
|
|
fputs("[truncated]", stdout);
|
|
fputs("): ", stdout);
|
|
|
|
return sizeof(struct ah) + sumlen;
|
|
trunc:
|
|
fputs("[|AH]", stdout);
|
|
return 65535;
|
|
}
|