136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/* $NetBSD: print-ripng.c,v 1.5 2007/07/24 11:53:47 drochner Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static const char rcsid[] _U_ =
|
|
"@(#) Header: /tcpdump/master/tcpdump/print-ripng.c,v 1.18 2005/01/04 00:15:54 guy Exp";
|
|
#else
|
|
__RCSID("$NetBSD: print-ripng.c,v 1.5 2007/07/24 11:53:47 drochner Exp $");
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#ifdef INET6
|
|
|
|
#include <tcpdump-stdinc.h>
|
|
#include <stdio.h>
|
|
|
|
#include "route6d.h"
|
|
#include "interface.h"
|
|
#include "addrtoname.h"
|
|
#include "extract.h"
|
|
|
|
#if !defined(IN6_IS_ADDR_UNSPECIFIED) && !defined(_MSC_VER) /* MSVC inline */
|
|
static int IN6_IS_ADDR_UNSPECIFIED(const struct in6_addr *addr)
|
|
{
|
|
static const struct in6_addr in6addr_any; /* :: */
|
|
return (memcmp(addr, &in6addr_any, sizeof(*addr)) == 0);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
rip6_entry_print(register const struct netinfo6 *ni, int metric)
|
|
{
|
|
int l;
|
|
l = printf("%s/%d", ip6addr_string(&ni->rip6_dest), ni->rip6_plen);
|
|
if (ni->rip6_tag)
|
|
l += printf(" [%d]", EXTRACT_16BITS(&ni->rip6_tag));
|
|
if (metric)
|
|
l += printf(" (%d)", ni->rip6_metric);
|
|
return l;
|
|
}
|
|
|
|
void
|
|
ripng_print(const u_char *dat, unsigned int length)
|
|
{
|
|
register const struct rip6 *rp = (struct rip6 *)dat;
|
|
register const struct netinfo6 *ni;
|
|
register u_int amt;
|
|
register u_int i;
|
|
int j;
|
|
int trunc;
|
|
|
|
if (snapend < dat)
|
|
return;
|
|
amt = snapend - dat;
|
|
i = min(length, amt);
|
|
if (i < (sizeof(struct rip6) - sizeof(struct netinfo6)))
|
|
return;
|
|
i -= (sizeof(struct rip6) - sizeof(struct netinfo6));
|
|
|
|
switch (rp->rip6_cmd) {
|
|
|
|
case RIP6_REQUEST:
|
|
j = length / sizeof(*ni);
|
|
if (j == 1
|
|
&& rp->rip6_nets->rip6_metric == HOPCNT_INFINITY6
|
|
&& IN6_IS_ADDR_UNSPECIFIED(&rp->rip6_nets->rip6_dest)) {
|
|
printf(" ripng-req dump");
|
|
break;
|
|
}
|
|
if (j * sizeof(*ni) != length - 4)
|
|
printf(" ripng-req %d[%u]:", j, length);
|
|
else
|
|
printf(" ripng-req %d:", j);
|
|
trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i);
|
|
for (ni = rp->rip6_nets; i >= sizeof(*ni);
|
|
i -= sizeof(*ni), ++ni) {
|
|
if (vflag > 1)
|
|
printf("\n\t");
|
|
else
|
|
printf(" ");
|
|
rip6_entry_print(ni, 0);
|
|
}
|
|
break;
|
|
case RIP6_RESPONSE:
|
|
j = length / sizeof(*ni);
|
|
if (j * sizeof(*ni) != length - 4)
|
|
printf(" ripng-resp %d[%u]:", j, length);
|
|
else
|
|
printf(" ripng-resp %d:", j);
|
|
trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i);
|
|
for (ni = rp->rip6_nets; i >= sizeof(*ni);
|
|
i -= sizeof(*ni), ++ni) {
|
|
if (vflag > 1)
|
|
printf("\n\t");
|
|
else
|
|
printf(" ");
|
|
rip6_entry_print(ni, ni->rip6_metric);
|
|
}
|
|
if (trunc)
|
|
printf("[|ripng]");
|
|
break;
|
|
default:
|
|
printf(" ripng-%d ?? %u", rp->rip6_cmd, length);
|
|
break;
|
|
}
|
|
if (rp->rip6_vers != RIP6_VERSION)
|
|
printf(" [vers %d]", rp->rip6_vers);
|
|
}
|
|
#endif /* INET6 */
|