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Sourcecode: tcpdump version File versions

print-aodv.c

/*
 * 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 1.8.2.3 2004/03/24 00:30:41 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);
      }
}

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