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