print-aodv.c - platform/external/tcpdump - Git at Google

 /*
  * 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);
 	}
 }
	/*
	* 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);
	}
	}