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/*
* Copyright (c) 2003 Bruce M. Simpson <bms@spc.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bruce M. Simpson.
* 4. Neither the name of Bruce M. Simpson nor the names of co-
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bruce M. Simpson AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Bruce M. Simpson OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] _U_ =
"@(#) $Header: /tcpdump/master/tcpdump/print-aodv.c,v 1.11 2004-03-24 00:30:19 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
#include <stddef.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "interface.h"
#include "addrtoname.h"
#include "extract.h" /* must come after interface.h */
#include "aodv.h"
static void
aodv_extension(const struct aodv_ext *ep, u_int length)
{
u_int i;
const struct aodv_hello *ah;
switch (ep->type) {
case AODV_EXT_HELLO:
if (snapend < (u_char *) ep) {
printf(" [|hello]");
return;
}
i = min(length, (u_int)(snapend - (u_char *)ep));
if (i < sizeof(struct aodv_hello)) {
printf(" [|hello]");
return;
}
i -= sizeof(struct aodv_hello);
ah = (void *)ep;
printf("\n\text HELLO %ld ms",
(unsigned long)EXTRACT_32BITS(&ah->interval));
break;
default:
printf("\n\text %u %u", ep->type, ep->length);
break;
}
}
static void
aodv_rreq(const union aodv *ap, const u_char *dat, u_int length)
{
u_int i;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
i = min(length, (u_int)(snapend - dat));
if (i < sizeof(ap->rreq)) {
printf(" [|rreq]");
return;
}
i -= sizeof(ap->rreq);
printf(" rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
"\tdst %s seq %lu src %s seq %lu", length,
ap->rreq.rreq_type & RREQ_JOIN ? "[J]" : "",
ap->rreq.rreq_type & RREQ_REPAIR ? "[R]" : "",
ap->rreq.rreq_type & RREQ_GRAT ? "[G]" : "",
ap->rreq.rreq_type & RREQ_DEST ? "[D]" : "",
ap->rreq.rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
ap->rreq.rreq_hops,
(unsigned long)EXTRACT_32BITS(&ap->rreq.rreq_id),
ipaddr_string(&ap->rreq.rreq_da),
(unsigned long)EXTRACT_32BITS(&ap->rreq.rreq_ds),
ipaddr_string(&ap->rreq.rreq_oa),
(unsigned long)EXTRACT_32BITS(&ap->rreq.rreq_os));
if (i >= sizeof(struct aodv_ext))
aodv_extension((void *)(&ap->rreq + 1), i);
}
static void
aodv_rrep(const union aodv *ap, const u_char *dat, u_int length)
{
u_int i;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
i = min(length, (u_int)(snapend - dat));
if (i < sizeof(ap->rrep)) {
printf(" [|rrep]");
return;
}
i -= sizeof(ap->rrep);
printf(" rrep %u %s%sprefix %u hops %u\n"
"\tdst %s dseq %lu src %s %lu ms", length,
ap->rrep.rrep_type & RREP_REPAIR ? "[R]" : "",
ap->rrep.rrep_type & RREP_ACK ? "[A] " : " ",
ap->rrep.rrep_ps & RREP_PREFIX_MASK,
ap->rrep.rrep_hops,
ipaddr_string(&ap->rrep.rrep_da),
(unsigned long)EXTRACT_32BITS(&ap->rrep.rrep_ds),
ipaddr_string(&ap->rrep.rrep_oa),
(unsigned long)EXTRACT_32BITS(&ap->rrep.rrep_life));
if (i >= sizeof(struct aodv_ext))
aodv_extension((void *)(&ap->rrep + 1), i);
}
static void
aodv_rerr(const union aodv *ap, const u_char *dat, u_int length)
{
u_int i;
const struct rerr_unreach *dp = NULL;
int n, trunc;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
i = min(length, (u_int)(snapend - dat));
if (i < offsetof(struct aodv_rerr, r)) {
printf(" [|rerr]");
return;
}
i -= offsetof(struct aodv_rerr, r);
dp = &ap->rerr.r.dest[0];
n = ap->rerr.rerr_dc * sizeof(ap->rerr.r.dest[0]);
printf(" rerr %s [items %u] [%u]:",
ap->rerr.rerr_flags & RERR_NODELETE ? "[D]" : "",
ap->rerr.rerr_dc, length);
trunc = n - (i/sizeof(ap->rerr.r.dest[0]));
for (; i >= sizeof(ap->rerr.r.dest[0]);
++dp, i -= sizeof(ap->rerr.r.dest[0])) {
printf(" {%s}(%ld)", ipaddr_string(&dp->u_da),
(unsigned long)EXTRACT_32BITS(&dp->u_ds));
}
if (trunc)
printf("[|rerr]");
}
static void
#ifdef INET6
aodv_v6_rreq(const union aodv *ap, const u_char *dat, u_int length)
#else
aodv_v6_rreq(const union aodv *ap _U_, const u_char *dat _U_, u_int length)
#endif
{
#ifdef INET6
u_int i;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
i = min(length, (u_int)(snapend - dat));
if (i < sizeof(ap->rreq6)) {
printf(" [|rreq6]");
return;
}
i -= sizeof(ap->rreq6);
printf(" v6 rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
"\tdst %s seq %lu src %s seq %lu", length,
ap->rreq6.rreq_type & RREQ_JOIN ? "[J]" : "",
ap->rreq6.rreq_type & RREQ_REPAIR ? "[R]" : "",
ap->rreq6.rreq_type & RREQ_GRAT ? "[G]" : "",
ap->rreq6.rreq_type & RREQ_DEST ? "[D]" : "",
ap->rreq6.rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
ap->rreq6.rreq_hops,
(unsigned long)EXTRACT_32BITS(&ap->rreq6.rreq_id),
ip6addr_string(&ap->rreq6.rreq_da),
(unsigned long)EXTRACT_32BITS(&ap->rreq6.rreq_ds),
ip6addr_string(&ap->rreq6.rreq_oa),
(unsigned long)EXTRACT_32BITS(&ap->rreq6.rreq_os));
if (i >= sizeof(struct aodv_ext))
aodv_extension((void *)(&ap->rreq6 + 1), i);
#else
printf(" v6 rreq %u", length);
#endif
}
static void
#ifdef INET6
aodv_v6_rrep(const union aodv *ap, const u_char *dat, u_int length)
#else
aodv_v6_rrep(const union aodv *ap _U_, const u_char *dat _U_, u_int length)
#endif
{
#ifdef INET6
u_int i;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
i = min(length, (u_int)(snapend - dat));
if (i < sizeof(ap->rrep6)) {
printf(" [|rrep6]");
return;
}
i -= sizeof(ap->rrep6);
printf(" rrep %u %s%sprefix %u hops %u\n"
"\tdst %s dseq %lu src %s %lu ms", length,
ap->rrep6.rrep_type & RREP_REPAIR ? "[R]" : "",
ap->rrep6.rrep_type & RREP_ACK ? "[A] " : " ",
ap->rrep6.rrep_ps & RREP_PREFIX_MASK,
ap->rrep6.rrep_hops,
ip6addr_string(&ap->rrep6.rrep_da),
(unsigned long)EXTRACT_32BITS(&ap->rrep6.rrep_ds),
ip6addr_string(&ap->rrep6.rrep_oa),
(unsigned long)EXTRACT_32BITS(&ap->rrep6.rrep_life));
if (i >= sizeof(struct aodv_ext))
aodv_extension((void *)(&ap->rrep6 + 1), i);
#else
printf(" rrep %u", length);
#endif
}
static void
#ifdef INET6
aodv_v6_rerr(const union aodv *ap, u_int length)
#else
aodv_v6_rerr(const union aodv *ap _U_, u_int length)
#endif
{
#ifdef INET6
const struct rerr_unreach6 *dp6 = NULL;
int i, j, n, trunc;
i = length - offsetof(struct aodv_rerr, r);
j = sizeof(ap->rerr.r.dest6[0]);
dp6 = &ap->rerr.r.dest6[0];
n = ap->rerr.rerr_dc * j;
printf(" rerr %s [items %u] [%u]:",
ap->rerr.rerr_flags & RERR_NODELETE ? "[D]" : "",
ap->rerr.rerr_dc, length);
trunc = n - (i/j);
for (; i -= j >= 0; ++dp6) {
printf(" {%s}(%ld)", ip6addr_string(&dp6->u_da),
(unsigned long)EXTRACT_32BITS(&dp6->u_ds));
}
if (trunc)
printf("[|rerr]");
#else
printf(" rerr %u", length);
#endif
}
static void
#ifdef INET6
aodv_v6_draft_01_rreq(const union aodv *ap, const u_char *dat, u_int length)
#else
aodv_v6_draft_01_rreq(const union aodv *ap _U_, const u_char *dat _U_,
u_int length)
#endif
{
#ifdef INET6
u_int i;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
i = min(length, (u_int)(snapend - dat));
if (i < sizeof(ap->rreq6_draft_01)) {
printf(" [|rreq6]");
return;
}
i -= sizeof(ap->rreq6_draft_01);
printf(" rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
"\tdst %s seq %lu src %s seq %lu", length,
ap->rreq6_draft_01.rreq_type & RREQ_JOIN ? "[J]" : "",
ap->rreq6_draft_01.rreq_type & RREQ_REPAIR ? "[R]" : "",
ap->rreq6_draft_01.rreq_type & RREQ_GRAT ? "[G]" : "",
ap->rreq6_draft_01.rreq_type & RREQ_DEST ? "[D]" : "",
ap->rreq6_draft_01.rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
ap->rreq6_draft_01.rreq_hops,
(unsigned long)EXTRACT_32BITS(&ap->rreq6_draft_01.rreq_id),
ip6addr_string(&ap->rreq6_draft_01.rreq_da),
(unsigned long)EXTRACT_32BITS(&ap->rreq6_draft_01.rreq_ds),
ip6addr_string(&ap->rreq6_draft_01.rreq_oa),
(unsigned long)EXTRACT_32BITS(&ap->rreq6_draft_01.rreq_os));
if (i >= sizeof(struct aodv_ext))
aodv_extension((void *)(&ap->rreq6_draft_01 + 1), i);
#else
printf(" rreq %u", length);
#endif
}
static void
#ifdef INET6
aodv_v6_draft_01_rrep(const union aodv *ap, const u_char *dat, u_int length)
#else
aodv_v6_draft_01_rrep(const union aodv *ap _U_, const u_char *dat _U_,
u_int length)
#endif
{
#ifdef INET6
u_int i;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
i = min(length, (u_int)(snapend - dat));
if (i < sizeof(ap->rrep6_draft_01)) {
printf(" [|rrep6]");
return;
}
i -= sizeof(ap->rrep6_draft_01);
printf(" rrep %u %s%sprefix %u hops %u\n"
"\tdst %s dseq %lu src %s %lu ms", length,
ap->rrep6_draft_01.rrep_type & RREP_REPAIR ? "[R]" : "",
ap->rrep6_draft_01.rrep_type & RREP_ACK ? "[A] " : " ",
ap->rrep6_draft_01.rrep_ps & RREP_PREFIX_MASK,
ap->rrep6_draft_01.rrep_hops,
ip6addr_string(&ap->rrep6_draft_01.rrep_da),
(unsigned long)EXTRACT_32BITS(&ap->rrep6_draft_01.rrep_ds),
ip6addr_string(&ap->rrep6_draft_01.rrep_oa),
(unsigned long)EXTRACT_32BITS(&ap->rrep6_draft_01.rrep_life));
if (i >= sizeof(struct aodv_ext))
aodv_extension((void *)(&ap->rrep6_draft_01 + 1), i);
#else
printf(" rrep %u", length);
#endif
}
static void
#ifdef INET6
aodv_v6_draft_01_rerr(const union aodv *ap, u_int length)
#else
aodv_v6_draft_01_rerr(const union aodv *ap _U_, u_int length)
#endif
{
#ifdef INET6
const struct rerr_unreach6_draft_01 *dp6 = NULL;
int i, j, n, trunc;
i = length - offsetof(struct aodv_rerr, r);
j = sizeof(ap->rerr.r.dest6_draft_01[0]);
dp6 = &ap->rerr.r.dest6_draft_01[0];
n = ap->rerr.rerr_dc * j;
printf(" rerr %s [items %u] [%u]:",
ap->rerr.rerr_flags & RERR_NODELETE ? "[D]" : "",
ap->rerr.rerr_dc, length);
trunc = n - (i/j);
for (; i -= j >= 0; ++dp6) {
printf(" {%s}(%ld)", ip6addr_string(&dp6->u_da),
(unsigned long)EXTRACT_32BITS(&dp6->u_ds));
}
if (trunc)
printf("[|rerr]");
#else
printf(" rerr %u", length);
#endif
}
void
aodv_print(const u_char *dat, u_int length, int is_ip6)
{
const union aodv *ap;
ap = (union aodv *)dat;
if (snapend < dat) {
printf(" [|aodv]");
return;
}
if (min(length, (u_int)(snapend - dat)) < sizeof(ap->rrep_ack)) {
printf(" [|aodv]");
return;
}
printf(" aodv");
switch (ap->rerr.rerr_type) {
case AODV_RREQ:
if (is_ip6)
aodv_v6_rreq(ap, dat, length);
else
aodv_rreq(ap, dat, length);
break;
case AODV_RREP:
if (is_ip6)
aodv_v6_rrep(ap, dat, length);
else
aodv_rrep(ap, dat, length);
break;
case AODV_RERR:
if (is_ip6)
aodv_v6_rerr(ap, length);
else
aodv_rerr(ap, dat, length);
break;
case AODV_RREP_ACK:
printf(" rrep-ack %u", length);
break;
case AODV_V6_DRAFT_01_RREQ:
aodv_v6_draft_01_rreq(ap, dat, length);
break;
case AODV_V6_DRAFT_01_RREP:
aodv_v6_draft_01_rrep(ap, dat, length);
break;
case AODV_V6_DRAFT_01_RERR:
aodv_v6_draft_01_rerr(ap, length);
break;
case AODV_V6_DRAFT_01_RREP_ACK:
printf(" rrep-ack %u", length);
break;
default:
printf(" %u %u", ap->rreq.rreq_type, length);
}
}