*/
#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-aodv.c,v 1.5 2003-09-12 22:05:57 guy Exp $ (LBL)";
+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 <tcpdump-stdinc.h>
-#include <stddef.h>
#include <stdio.h>
#include <ctype.h>
#include <string.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 %d ms", EXTRACT_32BITS(&ah->interval));
+ ah = (const struct aodv_hello *)(const void *)ep;
+ TCHECK(*ah);
+ if (length < sizeof(struct aodv_hello))
+ goto trunc;
+ printf("\n\text HELLO %ld ms",
+ (unsigned long)EXTRACT_32BITS(&ah->interval));
break;
default:
- printf("\n\text %d %d", ep->type, ep->length);
+ printf("\n\text %u %u", ep->type, ep->length);
break;
}
+ return;
+
+trunc:
+ printf(" [|hello]");
}
static void
-aodv_rreq(const union aodv *ap, const u_char *dat, u_int length)
+aodv_rreq(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 %d %s%s%s%s%shops %d id 0x%08x\n"
- "\tdst %s seq %d src %s seq %d", 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,
- EXTRACT_32BITS(&ap->rreq.rreq_id),
- ipaddr_string(&ap->rreq.rreq_da),
- EXTRACT_32BITS(&ap->rreq.rreq_ds),
- ipaddr_string(&ap->rreq.rreq_oa),
- EXTRACT_32BITS(&ap->rreq.rreq_os));
+ const struct aodv_rreq *ap = (const struct aodv_rreq *)dat;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
+ "\tdst %s seq %lu src %s seq %lu", length,
+ ap->rreq_type & RREQ_JOIN ? "[J]" : "",
+ ap->rreq_type & RREQ_REPAIR ? "[R]" : "",
+ ap->rreq_type & RREQ_GRAT ? "[G]" : "",
+ ap->rreq_type & RREQ_DEST ? "[D]" : "",
+ ap->rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
+ ap->rreq_hops,
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_id),
+ ipaddr_string(&ap->rreq_da),
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
+ ipaddr_string(&ap->rreq_oa),
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_os));
+ i = length - sizeof(*ap);
if (i >= sizeof(struct aodv_ext))
- aodv_extension((void *)(&ap->rreq + 1), i);
+ aodv_extension((const struct aodv_ext *)(dat + sizeof(*ap)), i);
+ return;
+
+trunc:
+ printf(" [|rreq");
}
static void
-aodv_rrep(const union aodv *ap, const u_char *dat, u_int length)
+aodv_rrep(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 %d %s%sprefix %d hops %d\n"
- "\tdst %s dseq %d src %s %d 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),
- EXTRACT_32BITS(&ap->rrep.rrep_ds),
- ipaddr_string(&ap->rrep.rrep_oa),
- EXTRACT_32BITS(&ap->rrep.rrep_life));
+ const struct aodv_rrep *ap = (const struct aodv_rrep *)dat;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rrep %u %s%sprefix %u hops %u\n"
+ "\tdst %s dseq %lu src %s %lu ms", length,
+ ap->rrep_type & RREP_REPAIR ? "[R]" : "",
+ ap->rrep_type & RREP_ACK ? "[A] " : " ",
+ ap->rrep_ps & RREP_PREFIX_MASK,
+ ap->rrep_hops,
+ ipaddr_string(&ap->rrep_da),
+ (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
+ ipaddr_string(&ap->rrep_oa),
+ (unsigned long)EXTRACT_32BITS(&ap->rrep_life));
+ i = length - sizeof(*ap);
if (i >= sizeof(struct aodv_ext))
- aodv_extension((void *)(&ap->rrep + 1), i);
+ aodv_extension((const struct aodv_ext *)(dat + sizeof(*ap)), i);
+ return;
+
+trunc:
+ printf(" [|rreq");
}
static void
-aodv_rerr(const union aodv *ap, u_int length)
+aodv_rerr(const u_char *dat, u_int length)
{
- const struct rerr_unreach *dp = NULL;
- int i, j, n, trunc;
-
- i = length - offsetof(struct aodv_rerr, r);
- j = sizeof(ap->rerr.r.dest[0]);
- dp = &ap->rerr.r.dest[0];
- n = ap->rerr.rerr_dc * j;
- printf(" rerr %s [items %d] [%d]:",
- ap->rerr.rerr_flags & RERR_NODELETE ? "[D]" : "",
- ap->rerr.rerr_dc, length);
- trunc = n - (i/j);
- for (; i -= j >= 0; ++dp) {
- printf(" {%s}(%d)", ipaddr_string(&dp->u_da),
- EXTRACT_32BITS(&dp->u_ds));
+ u_int i, dc;
+ const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
+ const struct rerr_unreach *dp;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rerr %s [items %u] [%u]:",
+ ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
+ ap->rerr_dc, length);
+ dp = (struct rerr_unreach *)(dat + sizeof(*ap));
+ i = length - sizeof(*ap);
+ for (dc = ap->rerr_dc; dc != 0; dc--) {
+ TCHECK(*dp);
+ if (i < sizeof(*dp))
+ goto trunc;
+ printf(" {%s}(%ld)", ipaddr_string(&dp->u_da),
+ (unsigned long)EXTRACT_32BITS(&dp->u_ds));
+ dp++;
+ i -= sizeof(*dp);
}
- if (trunc)
- printf("[|rerr]");
+ return;
+
+trunc:
+ printf("[|rerr]");
}
static void
#ifdef INET6
-aodv_v6_rreq(const union aodv *ap, const u_char *dat, u_int length)
+aodv_v6_rreq(const u_char *dat, u_int length)
#else
-aodv_v6_rreq(const union aodv *ap _U_, const u_char *dat _U_, u_int length)
+aodv_v6_rreq(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 %d %s%s%s%s%shops %d id 0x%08x\n"
- "\tdst %s seq %d src %s seq %d", 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,
- EXTRACT_32BITS(&ap->rreq6.rreq_id),
- ip6addr_string(&ap->rreq6.rreq_da),
- EXTRACT_32BITS(&ap->rreq6.rreq_ds),
- ip6addr_string(&ap->rreq6.rreq_oa),
- EXTRACT_32BITS(&ap->rreq6.rreq_os));
+ const struct aodv_rreq6 *ap = (const struct aodv_rreq6 *)dat;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" v6 rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
+ "\tdst %s seq %lu src %s seq %lu", length,
+ ap->rreq_type & RREQ_JOIN ? "[J]" : "",
+ ap->rreq_type & RREQ_REPAIR ? "[R]" : "",
+ ap->rreq_type & RREQ_GRAT ? "[G]" : "",
+ ap->rreq_type & RREQ_DEST ? "[D]" : "",
+ ap->rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
+ ap->rreq_hops,
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_id),
+ ip6addr_string(&ap->rreq_da),
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
+ ip6addr_string(&ap->rreq_oa),
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_os));
+ i = length - sizeof(*ap);
if (i >= sizeof(struct aodv_ext))
- aodv_extension((void *)(&ap->rreq6 + 1), i);
+ aodv_extension((const struct aodv_ext *)(dat + sizeof(*ap)), i);
+ return;
+
+trunc:
+ printf(" [|rreq");
#else
- printf(" v6 rreq %d", length);
+ printf(" v6 rreq %u", length);
#endif
}
static void
#ifdef INET6
-aodv_v6_rrep(const union aodv *ap, const u_char *dat, u_int length)
+aodv_v6_rrep(const u_char *dat, u_int length)
#else
-aodv_v6_rrep(const union aodv *ap _U_, const u_char *dat _U_, u_int length)
+aodv_v6_rrep(const u_char *dat _U_, u_int length)
#endif
{
#ifdef INET6
u_int i;
+ const struct aodv_rrep6 *ap = (const struct aodv_rrep6 *)dat;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rrep %u %s%sprefix %u hops %u\n"
+ "\tdst %s dseq %lu src %s %lu ms", length,
+ ap->rrep_type & RREP_REPAIR ? "[R]" : "",
+ ap->rrep_type & RREP_ACK ? "[A] " : " ",
+ ap->rrep_ps & RREP_PREFIX_MASK,
+ ap->rrep_hops,
+ ip6addr_string(&ap->rrep_da),
+ (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
+ ip6addr_string(&ap->rrep_oa),
+ (unsigned long)EXTRACT_32BITS(&ap->rrep_life));
+ i = length - sizeof(*ap);
+ if (i >= sizeof(struct aodv_ext))
+ aodv_extension((const struct aodv_ext *)(dat + sizeof(*ap)), i);
+ return;
- if (snapend < dat) {
- printf(" [|aodv]");
- return;
- }
- i = min(length, (u_int)(snapend - dat));
- if (i < sizeof(ap->rrep6)) {
- printf(" [|rrep6]");
- return;
+trunc:
+ printf(" [|rreq");
+#else
+ printf(" rrep %u", length);
+#endif
+}
+
+static void
+#ifdef INET6
+aodv_v6_rerr(const u_char *dat, u_int length)
+#else
+aodv_v6_rerr(const u_char *dat _U_, u_int length)
+#endif
+{
+#ifdef INET6
+ u_int i, dc;
+ const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
+ const struct rerr_unreach6 *dp6;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rerr %s [items %u] [%u]:",
+ ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
+ ap->rerr_dc, length);
+ dp6 = (struct rerr_unreach6 *)(void *)(ap + 1);
+ i = length - sizeof(*ap);
+ for (dc = ap->rerr_dc; dc != 0; dc--) {
+ TCHECK(*dp6);
+ if (i < sizeof(*dp6))
+ goto trunc;
+ printf(" {%s}(%ld)", ip6addr_string(&dp6->u_da),
+ (unsigned long)EXTRACT_32BITS(&dp6->u_ds));
+ dp6++;
+ i -= sizeof(*dp6);
}
- i -= sizeof(ap->rrep6);
- printf(" rrep %d %s%sprefix %d hops %d\n"
- "\tdst %s dseq %d src %s %d 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),
- EXTRACT_32BITS(&ap->rrep6.rrep_ds),
- ip6addr_string(&ap->rrep6.rrep_oa),
- EXTRACT_32BITS(&ap->rrep6.rrep_life));
+ return;
+
+trunc:
+ printf("[|rerr]");
+#else
+ printf(" rerr %u", length);
+#endif
+}
+
+static void
+#ifdef INET6
+aodv_v6_draft_01_rreq(const u_char *dat, u_int length)
+#else
+aodv_v6_draft_01_rreq(const u_char *dat _U_, u_int length)
+#endif
+{
+#ifdef INET6
+ u_int i;
+ const struct aodv_rreq6_draft_01 *ap = (const struct aodv_rreq6_draft_01 *)dat;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
+ "\tdst %s seq %lu src %s seq %lu", length,
+ ap->rreq_type & RREQ_JOIN ? "[J]" : "",
+ ap->rreq_type & RREQ_REPAIR ? "[R]" : "",
+ ap->rreq_type & RREQ_GRAT ? "[G]" : "",
+ ap->rreq_type & RREQ_DEST ? "[D]" : "",
+ ap->rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
+ ap->rreq_hops,
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_id),
+ ip6addr_string(&ap->rreq_da),
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
+ ip6addr_string(&ap->rreq_oa),
+ (unsigned long)EXTRACT_32BITS(&ap->rreq_os));
+ i = length - sizeof(*ap);
if (i >= sizeof(struct aodv_ext))
- aodv_extension((void *)(&ap->rrep6 + 1), i);
+ aodv_extension((const struct aodv_ext *)(dat + sizeof(*ap)), i);
+ return;
+
+trunc:
+ printf(" [|rreq");
#else
- printf(" v6 rrep %d", length);
+ printf(" rreq %u", length);
#endif
}
static void
#ifdef INET6
-aodv_v6_rerr(const union aodv *ap, u_int length)
+aodv_v6_draft_01_rrep(const u_char *dat, u_int length)
#else
-aodv_v6_rerr(const union aodv *ap _U_, u_int length)
+aodv_v6_draft_01_rrep(const u_char *dat _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 %d] [%d]:",
- ap->rerr.rerr_flags & RERR_NODELETE ? "[D]" : "",
- ap->rerr.rerr_dc, length);
- trunc = n - (i/j);
- for (; i -= j >= 0; ++dp6) {
- printf(" {%s}(%d)", ip6addr_string(&dp6->u_da),
- EXTRACT_32BITS(&dp6->u_ds));
+ u_int i;
+ const struct aodv_rrep6_draft_01 *ap = (const struct aodv_rrep6_draft_01 *)dat;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rrep %u %s%sprefix %u hops %u\n"
+ "\tdst %s dseq %lu src %s %lu ms", length,
+ ap->rrep_type & RREP_REPAIR ? "[R]" : "",
+ ap->rrep_type & RREP_ACK ? "[A] " : " ",
+ ap->rrep_ps & RREP_PREFIX_MASK,
+ ap->rrep_hops,
+ ip6addr_string(&ap->rrep_da),
+ (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
+ ip6addr_string(&ap->rrep_oa),
+ (unsigned long)EXTRACT_32BITS(&ap->rrep_life));
+ i = length - sizeof(*ap);
+ if (i >= sizeof(struct aodv_ext))
+ aodv_extension((const struct aodv_ext *)(dat + sizeof(*ap)), i);
+ return;
+
+trunc:
+ printf(" [|rreq");
+#else
+ printf(" rrep %u", length);
+#endif
+}
+
+static void
+#ifdef INET6
+aodv_v6_draft_01_rerr(const u_char *dat, u_int length)
+#else
+aodv_v6_draft_01_rerr(const u_char *dat _U_, u_int length)
+#endif
+{
+#ifdef INET6
+ u_int i, dc;
+ const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
+ const struct rerr_unreach6_draft_01 *dp6;
+
+ TCHECK(*ap);
+ if (length < sizeof(*ap))
+ goto trunc;
+ printf(" rerr %s [items %u] [%u]:",
+ ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
+ ap->rerr_dc, length);
+ dp6 = (struct rerr_unreach6_draft_01 *)(void *)(ap + 1);
+ i = length - sizeof(*ap);
+ for (dc = ap->rerr_dc; dc != 0; dc--) {
+ TCHECK(*dp6);
+ if (i < sizeof(*dp6))
+ goto trunc;
+ printf(" {%s}(%ld)", ip6addr_string(&dp6->u_da),
+ (unsigned long)EXTRACT_32BITS(&dp6->u_ds));
+ dp6++;
+ i -= sizeof(*dp6);
}
- if (trunc)
- printf("[|rerr]");
+ return;
+
+trunc:
+ printf("[|rerr]");
#else
- printf(" v6 rerr %d", length);
+ 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;
- }
+ u_int8_t msg_type;
+
+ /*
+ * The message type is the first byte; make sure we have it
+ * and then fetch it.
+ */
+ TCHECK(*dat);
+ msg_type = *dat;
printf(" aodv");
- switch (ap->rerr.rerr_type) {
+ switch (msg_type) {
case AODV_RREQ:
if (is_ip6)
- aodv_v6_rreq(ap, dat, length);
+ aodv_v6_rreq(dat, length);
else
- aodv_rreq(ap, dat, length);
+ aodv_rreq(dat, length);
break;
case AODV_RREP:
if (is_ip6)
- aodv_v6_rrep(ap, dat, length);
+ aodv_v6_rrep(dat, length);
else
- aodv_rrep(ap, dat, length);
+ aodv_rrep(dat, length);
break;
case AODV_RERR:
if (is_ip6)
- aodv_v6_rerr(ap, length);
+ aodv_v6_rerr(dat, length);
else
- aodv_rerr(ap, length);
+ aodv_rerr(dat, length);
break;
case AODV_RREP_ACK:
- printf(" rrep-ack %d", length);
+ printf(" rrep-ack %u", length);
break;
- case AODV_V6_RREQ:
- aodv_v6_rreq(ap, dat, length);
+ case AODV_V6_DRAFT_01_RREQ:
+ aodv_v6_draft_01_rreq(dat, length);
break;
- case AODV_V6_RREP:
- aodv_v6_rrep(ap, dat, length);
+ case AODV_V6_DRAFT_01_RREP:
+ aodv_v6_draft_01_rrep(dat, length);
break;
- case AODV_V6_RERR:
- aodv_v6_rerr(ap, length);
+ case AODV_V6_DRAFT_01_RERR:
+ aodv_v6_draft_01_rerr(dat, length);
break;
- case AODV_V6_RREP_ACK:
- printf(" v6 rrep-ack %d", length);
+ case AODV_V6_DRAFT_01_RREP_ACK:
+ printf(" rrep-ack %u", length);
break;
default:
- printf(" %d %d", ap->rreq.rreq_type, length);
+ printf(" type %u %u", msg_type, length);
}
+ return;
+
+trunc:
+ printf(" [|aodv]");
}
projects / tcpdump / blobdiff