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/* $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 char rcsid[] =
"@(#) Header: print-ah.c,v 1.37 94/06/10 17:01:42 mccanne Exp (LBL)";
#endif
#include <sys/param.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#undef NOERROR /* Solaris sucks */
#include <arpa/nameser.h>
#include <arpa/tftp.h>
#ifdef SOLARIS
#include <tiuser.h>
#endif
#include <rpc/rpc.h>
#include <errno.h>
#include <stdio.h>
#include "interface.h"
#include "addrtoname.h"
extern int packettype;
void
ah_print(register const u_char *bp, int length, register const u_char *bp2)
{
register const struct ip *ip;
register const u_char *cp, *nh;
u_short nextheader;
u_short ahlen, authlen;
u_long spi, seqno;
ip = (struct ip *)bp2;
(void)printf("AH %s > %s\n\t\t",
ipaddr_string(&ip->ip_src),
ipaddr_string(&ip->ip_dst));
if (length < 8) {
(void)printf(" [|ah] truncated-ah %d", length);
return;
}
nextheader = bp[0];
ahlen = bp[1];
spi = ntohl(*((u_long *)(bp+4)));
seqno = ntohl(*((u_long *)(bp+8)));
authlen = ahlen - 12;
nh = bp+ahlen;
if(authlen > length || authlen == 0)
{
authlen = length;
}
(void)printf("spi:%08x seqno:%d authlen: %d authdata: ", spi,
seqno, authlen);
(void)default_print_unaligned(bp+12, authlen);
/* PRINT rest of packet, requires some reorg of print-ip.c */
#if XXX
(void)ip_print(nextheader, ip, nh, length-authlen);
#endif
}
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