NetBSD/usr.sbin/tcpdump/print-esp.c

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/* $NetBSD: print-esp.c,v 1.4 2001/01/28 10:05:06 itojun Exp $ */
1999-07-04 06:57:51 +04:00
/*
* Copyright (c) 1988, 1989, 1990, 1991, 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
#if 0
static const char rcsid[] =
"@(#) /master/usr.sbin/tcpdump/tcpdump/print-icmp.c,v 2.1 1995/02/03 18:14:42 polk Exp (LBL)";
#else
#include <sys/cdefs.h>
__RCSID("$NetBSD: print-esp.c,v 1.4 2001/01/28 10:05:06 itojun Exp $");
#endif
#endif
#include <string.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/route.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/tcp.h>
#ifdef CRYPTO
#include <des.h>
#include <blowfish.h>
#ifdef HAVE_RC5_H
#include <rc5.h>
#endif
#ifdef HAVE_CAST_H
#include <cast.h>
#endif
#endif
#include <stdio.h>
#ifdef INET6
#include <netinet/ip6.h>
#endif
#include <netinet6/esp.h>
#include "interface.h"
#include "addrtoname.h"
int
esp_print(register const u_char *bp, register const u_char *bp2, int *nhdr)
{
register const struct esp *esp;
register const u_char *ep;
u_int32_t spi;
esp = (struct esp *)bp;
spi = (u_int32_t)ntohl(esp->esp_spi);
/* 'ep' points to the end of available data. */
ep = snapend;
if ((u_char *)(esp + 1) >= ep - sizeof(struct esp)) {
fputs("[|ESP]", stdout);
goto fail;
}
printf("ESP(spi=0x%08x", spi);
printf(",seq=0x%x", (u_int32_t)ntohl(*(u_int32_t *)(esp + 1)));
printf(")");
fail:
if (nhdr)
*nhdr = -1;
return 65536;
}