ca89dc0998
changes include: - do not chase header if ip/ip6 datagram is framgented, and it is not the first fragment - u_short -> u_int16_t - buffer boundary checks, including sprintf -> snprintf - cleanup truncated packet cases - pull tcpdump.org enhancements/corrections for RIP, IPv6 options, ICMPv6, OSPFv3, IPv4 options, BGP there are a lot of local/conflicting changes. we'd gradually decrease # of diffs by synchronizing both ends, and then move to src/dist/tcpdump and reachover makefile.
127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
/* $NetBSD: print-rt6.c,v 1.6 2001/01/28 10:05:07 itojun Exp $ */
|
|
|
|
/*
|
|
* 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-rt6.c,v 1.6 2001/01/28 10:05:07 itojun Exp $");
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef INET6
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.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>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <netinet/ip6.h>
|
|
|
|
#include "interface.h"
|
|
#include "addrtoname.h"
|
|
|
|
int
|
|
rt6_print(register const u_char *bp, register const u_char *bp2)
|
|
{
|
|
register const struct ip6_rthdr *dp;
|
|
register const struct ip6_rthdr0 *dp0;
|
|
register const struct ip6_hdr *ip;
|
|
register const u_char *ep;
|
|
int i, len;
|
|
register const struct in6_addr *addr;
|
|
|
|
dp = (struct ip6_rthdr *)bp;
|
|
ip = (struct ip6_hdr *)bp2;
|
|
len = dp->ip6r_len;
|
|
|
|
/* 'ep' points to the end of available data. */
|
|
ep = snapend;
|
|
|
|
#if 0
|
|
printf("%s > %s: ",
|
|
ip6addr_string(&ip->ip6_src),
|
|
ip6addr_string(&ip->ip6_dst));
|
|
#endif
|
|
|
|
TCHECK(dp->ip6r_segleft);
|
|
|
|
printf("srcrt (len=%d", dp->ip6r_len); /*)*/
|
|
printf(", type=%d", dp->ip6r_type);
|
|
printf(", segleft=%d", dp->ip6r_segleft);
|
|
|
|
switch (dp->ip6r_type) {
|
|
#ifndef IPV6_RTHDR_TYPE_0
|
|
#define IPV6_RTHDR_TYPE_0 0
|
|
#endif
|
|
case IPV6_RTHDR_TYPE_0:
|
|
dp0 = (struct ip6_rthdr0 *)dp;
|
|
|
|
TCHECK(dp0->ip6r0_reserved);
|
|
if (dp0->ip6r0_reserved || vflag) {
|
|
printf(", rsv=0x%0x",
|
|
(u_int32_t)ntohl(dp0->ip6r0_reserved));
|
|
}
|
|
|
|
if (len % 2 == 1)
|
|
goto trunc;
|
|
len >>= 1;
|
|
addr = &dp0->ip6r0_addr[0];
|
|
for (i = 0; i < len; i++) {
|
|
if ((u_char *)(addr + 1) > ep)
|
|
goto trunc;
|
|
|
|
printf(", [%d]%s", i, ip6addr_string(addr));
|
|
addr++;
|
|
}
|
|
/*(*/
|
|
printf(") ");
|
|
return((dp0->ip6r0_len + 1) << 3);
|
|
break;
|
|
default:
|
|
goto trunc;
|
|
break;
|
|
}
|
|
|
|
trunc:
|
|
fputs("[|srcrt]", stdout);
|
|
return 65535; /* XXX */
|
|
}
|
|
#endif /* INET6 */
|