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change make check to work with POSIX shell
[tcpdump] / print-aodv.c
diff --git a/print-aodv.c b/print-aodv.c
index f0f525f5bb135e0eac8b9f30a54ebee23127b9e3..fe75db863c0b21ad07cac931ec464f85d0b1fa84 100644 (file)
--- a/print-aodv.c
+++ b/print-aodv.c
@@ -30,251 +30,510 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef lint
-static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-aodv.c,v 1.3 2003-08-13 02:23:07 itojun Exp $ (LBL)";
-#endif
+/* \summary: Ad hoc On-Demand Distance Vector (AODV) Routing printer */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #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 <netdissect-stdinc.h>
 
 
-#include "interface.h"
+#include "netdissect.h"
 #include "addrtoname.h"
 #include "addrtoname.h"
-#include "extract.h"                   /* must come after interface.h */
+#include "extract.h"
+
+/*
+ * RFC 3561
+ */
+struct aodv_rreq {
+       uint8_t         rreq_type;      /* AODV message type (1) */
+       uint8_t         rreq_flags;     /* various flags */
+       uint8_t         rreq_zero0;     /* reserved, set to zero */
+       uint8_t         rreq_hops;      /* number of hops from originator */
+       uint32_t        rreq_id;        /* request ID */
+       uint32_t        rreq_da;        /* destination IPv4 address */
+       uint32_t        rreq_ds;        /* destination sequence number */
+       uint32_t        rreq_oa;        /* originator IPv4 address */
+       uint32_t        rreq_os;        /* originator sequence number */
+};
+struct aodv_rreq6 {
+       uint8_t         rreq_type;      /* AODV message type (1) */
+       uint8_t         rreq_flags;     /* various flags */
+       uint8_t         rreq_zero0;     /* reserved, set to zero */
+       uint8_t         rreq_hops;      /* number of hops from originator */
+       uint32_t        rreq_id;        /* request ID */
+       struct in6_addr rreq_da;        /* destination IPv6 address */
+       uint32_t        rreq_ds;        /* destination sequence number */
+       struct in6_addr rreq_oa;        /* originator IPv6 address */
+       uint32_t        rreq_os;        /* originator sequence number */
+};
+struct aodv_rreq6_draft_01 {
+       uint8_t         rreq_type;      /* AODV message type (16) */
+       uint8_t         rreq_flags;     /* various flags */
+       uint8_t         rreq_zero0;     /* reserved, set to zero */
+       uint8_t         rreq_hops;      /* number of hops from originator */
+       uint32_t        rreq_id;        /* request ID */
+       uint32_t        rreq_ds;        /* destination sequence number */
+       uint32_t        rreq_os;        /* originator sequence number */
+       struct in6_addr rreq_da;        /* destination IPv6 address */
+       struct in6_addr rreq_oa;        /* originator IPv6 address */
+};
+
+#define        RREQ_JOIN       0x80            /* join (reserved for multicast */
+#define        RREQ_REPAIR     0x40            /* repair (reserved for multicast */
+#define        RREQ_GRAT       0x20            /* gratuitous RREP */
+#define        RREQ_DEST       0x10            /* destination only */
+#define        RREQ_UNKNOWN    0x08            /* unknown destination sequence num */
+#define        RREQ_FLAGS_MASK 0xF8            /* mask for rreq_flags */
+
+struct aodv_rrep {
+       uint8_t         rrep_type;      /* AODV message type (2) */
+       uint8_t         rrep_flags;     /* various flags */
+       uint8_t         rrep_ps;        /* prefix size */
+       uint8_t         rrep_hops;      /* number of hops from o to d */
+       uint32_t        rrep_da;        /* destination IPv4 address */
+       uint32_t        rrep_ds;        /* destination sequence number */
+       uint32_t        rrep_oa;        /* originator IPv4 address */
+       uint32_t        rrep_life;      /* lifetime of this route */
+};
+struct aodv_rrep6 {
+       uint8_t         rrep_type;      /* AODV message type (2) */
+       uint8_t         rrep_flags;     /* various flags */
+       uint8_t         rrep_ps;        /* prefix size */
+       uint8_t         rrep_hops;      /* number of hops from o to d */
+       struct in6_addr rrep_da;        /* destination IPv6 address */
+       uint32_t        rrep_ds;        /* destination sequence number */
+       struct in6_addr rrep_oa;        /* originator IPv6 address */
+       uint32_t        rrep_life;      /* lifetime of this route */
+};
+struct aodv_rrep6_draft_01 {
+       uint8_t         rrep_type;      /* AODV message type (17) */
+       uint8_t         rrep_flags;     /* various flags */
+       uint8_t         rrep_ps;        /* prefix size */
+       uint8_t         rrep_hops;      /* number of hops from o to d */
+       uint32_t        rrep_ds;        /* destination sequence number */
+       struct in6_addr rrep_da;        /* destination IPv6 address */
+       struct in6_addr rrep_oa;        /* originator IPv6 address */
+       uint32_t        rrep_life;      /* lifetime of this route */
+};
+
+#define        RREP_REPAIR             0x80    /* repair (reserved for multicast */
+#define        RREP_ACK                0x40    /* acknowledgement required */
+#define        RREP_FLAGS_MASK         0xC0    /* mask for rrep_flags */
+#define        RREP_PREFIX_MASK        0x1F    /* mask for prefix size */
+
+struct rerr_unreach {
+       uint32_t        u_da;   /* IPv4 address */
+       uint32_t        u_ds;   /* sequence number */
+};
+struct rerr_unreach6 {
+       struct in6_addr u_da;   /* IPv6 address */
+       uint32_t        u_ds;   /* sequence number */
+};
+struct rerr_unreach6_draft_01 {
+       struct in6_addr u_da;   /* IPv6 address */
+       uint32_t        u_ds;   /* sequence number */
+};
+
+struct aodv_rerr {
+       uint8_t         rerr_type;      /* AODV message type (3 or 18) */
+       uint8_t         rerr_flags;     /* various flags */
+       uint8_t         rerr_zero0;     /* reserved, set to zero */
+       uint8_t         rerr_dc;        /* destination count */
+};
+
+#define RERR_NODELETE          0x80    /* don't delete the link */
+#define RERR_FLAGS_MASK                0x80    /* mask for rerr_flags */
+
+struct aodv_rrep_ack {
+       uint8_t         ra_type;
+       uint8_t         ra_zero0;
+};
 
 
-#include "aodv.h"
+#define        AODV_RREQ               1       /* route request */
+#define        AODV_RREP               2       /* route response */
+#define        AODV_RERR               3       /* error report */
+#define        AODV_RREP_ACK           4       /* route response acknowledgement */
+
+#define AODV_V6_DRAFT_01_RREQ          16      /* IPv6 route request */
+#define AODV_V6_DRAFT_01_RREP          17      /* IPv6 route response */
+#define AODV_V6_DRAFT_01_RERR          18      /* IPv6 error report */
+#define AODV_V6_DRAFT_01_RREP_ACK      19      /* IPV6 route response acknowledgment */
+
+struct aodv_ext {
+       uint8_t         type;           /* extension type */
+       uint8_t         length;         /* extension length */
+};
+
+struct aodv_hello {
+       struct  aodv_ext        eh;             /* extension header */
+       uint8_t                 interval[4];    /* expect my next hello in
+                                                * (n) ms
+                                                * NOTE: this is not aligned */
+};
+
+#define        AODV_EXT_HELLO  1
 
 static void
 
 static void
-aodv_extension(struct aodv_ext *ep, u_int length)
+aodv_extension(netdissect_options *ndo,
+               const struct aodv_ext *ep, u_int length)
 {
 {
-       u_int i;
-       struct aodv_hello *ah;
+       const struct aodv_hello *ah;
 
 
+       ND_TCHECK(*ep);
        switch (ep->type) {
        case AODV_EXT_HELLO:
        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;
+               ah = (const struct aodv_hello *)(const void *)ep;
+               ND_TCHECK(*ah);
+               if (length < sizeof(struct aodv_hello))
+                       goto trunc;
+               if (ep->length < 4) {
+                       ND_PRINT((ndo, "\n\text HELLO - bad length %u", ep->length));
+                       break;
                }
                }
-               i -= sizeof(struct aodv_hello);
-               ah = (void *) ep;
-               printf("\n\text HELLO %d ms",
-                       EXTRACT_32BITS(ah->interval));
+               ND_PRINT((ndo, "\n\text HELLO %ld ms",
+                   (unsigned long)EXTRACT_32BITS(&ah->interval)));
                break;
 
        default:
                break;
 
        default:
-               printf("\n\text %d %d", ep->type, ep->length);
+               ND_PRINT((ndo, "\n\text %u %u", ep->type, ep->length));
                break;
        }
                break;
        }
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|hello]"));
 }
 
 static void
 }
 
 static void
-aodv_rreq(union aodv *ap, const u_char *dat, u_int length, void *ip6
-#ifndef INET6
-       _U_
-#endif
-       )
+aodv_rreq(netdissect_options *ndo, const u_char *dat, u_int length)
 {
        u_int i;
 {
        u_int i;
+       const struct aodv_rreq *ap = (const struct aodv_rreq *)dat;
 
 
-       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);
-#ifdef INET6
-       if (ip6 != NULL) {
-               printf(" rreq %d %s%s%s%s%shops %d id 0x%08lx\n"
-                       "\tdst %s seq %ld src %s seq %ld", 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(ap->rreq6) + sizeof(struct aodv_ext)) {
-                       aodv_extension((void *) (&ap->rreq6 + 1),
-                                       length - sizeof(ap->rreq6));
-               }
-               } else
-#endif
-       {
-               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));
-               if (i >= sizeof(ap->rreq) + sizeof(struct aodv_ext)) {
-                       aodv_extension((void *) (&ap->rreq + 1),
-                                       length - sizeof(ap->rreq));
-               }
-       }
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " 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(ndo, &ap->rreq_da),
+           (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
+           ipaddr_string(ndo, &ap->rreq_oa),
+           (unsigned long)EXTRACT_32BITS(&ap->rreq_os)));
+       i = length - sizeof(*ap);
+       if (i >= sizeof(struct aodv_ext))
+               aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|rreq"));
 }
 
 static void
 }
 
 static void
-aodv_rrep(union aodv *ap, const u_char *dat, u_int length, void *ip6
-#ifndef INET6
-       _U_
-#endif
-       )
+aodv_rrep(netdissect_options *ndo, const u_char *dat, u_int length)
 {
        u_int i;
 {
        u_int i;
+       const struct aodv_rrep *ap = (const struct aodv_rrep *)dat;
 
 
-       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);
-#ifdef INET6
-       if (ip6 != NULL) {
-               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));
-               if (i >= sizeof(ap->rrep6) + sizeof(struct aodv_ext)) {
-                       aodv_extension((void *) (&ap->rrep6 + 1),
-                                       length - sizeof(ap->rrep6));
-               }
-       } else
-#endif
-       {
-               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));
-               if (i >= sizeof(ap->rrep) + sizeof(struct aodv_ext)) {
-                       aodv_extension((void *) (&ap->rrep + 1),
-                                       length - sizeof(ap->rrep));
-               }
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " 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(ndo, &ap->rrep_da),
+           (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
+           ipaddr_string(ndo, &ap->rrep_oa),
+           (unsigned long)EXTRACT_32BITS(&ap->rrep_life)));
+       i = length - sizeof(*ap);
+       if (i >= sizeof(struct aodv_ext))
+               aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|rreq"));
+}
+
+static void
+aodv_rerr(netdissect_options *ndo, const u_char *dat, u_int length)
+{
+       u_int i, dc;
+       const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
+       const struct rerr_unreach *dp;
+
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " rerr %s [items %u] [%u]:",
+           ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
+           ap->rerr_dc, length));
+       dp = (const struct rerr_unreach *)(dat + sizeof(*ap));
+       i = length - sizeof(*ap);
+       for (dc = ap->rerr_dc; dc != 0; dc--) {
+               ND_TCHECK(*dp);
+               if (i < sizeof(*dp))
+                       goto trunc;
+               ND_PRINT((ndo, " {%s}(%ld)", ipaddr_string(ndo, &dp->u_da),
+                   (unsigned long)EXTRACT_32BITS(&dp->u_ds)));
+               dp++;
+               i -= sizeof(*dp);
        }
        }
+       return;
+
+trunc:
+       ND_PRINT((ndo, "[|rerr]"));
 }
 
 static void
 }
 
 static void
-aodv_rerr(union aodv *ap, u_int length, void *ip6
-#ifndef INET6
-       _U_
-#endif
-       )
+aodv_v6_rreq(netdissect_options *ndo, const u_char *dat, u_int length)
 {
 {
-       int i, j, n, trunc;
-       struct rerr_unreach *dp;
-#ifdef INET6
-       struct rerr_unreach6 *dp6;
-#endif
+       u_int i;
+       const struct aodv_rreq6 *ap = (const struct aodv_rreq6 *)dat;
 
 
-       i = length - offsetof(struct aodv_rerr, r);
-#ifdef INET6
-       if (ip6 != NULL) {
-               j = sizeof(ap->rerr.r.dest6[0]);
-               dp6 = &ap->rerr.r.dest6[0];
-       } else
-#endif
-       {
-               j = sizeof(ap->rerr.r.dest[0]);
-               dp = &ap->rerr.r.dest[0];
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " 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(ndo, &ap->rreq_da),
+           (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
+           ip6addr_string(ndo, &ap->rreq_oa),
+           (unsigned long)EXTRACT_32BITS(&ap->rreq_os)));
+       i = length - sizeof(*ap);
+       if (i >= sizeof(struct aodv_ext))
+               aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|rreq"));
+}
+
+static void
+aodv_v6_rrep(netdissect_options *ndo, const u_char *dat, u_int length)
+{
+       u_int i;
+       const struct aodv_rrep6 *ap = (const struct aodv_rrep6 *)dat;
+
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " 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(ndo, &ap->rrep_da),
+           (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
+           ip6addr_string(ndo, &ap->rrep_oa),
+           (unsigned long)EXTRACT_32BITS(&ap->rrep_life)));
+       i = length - sizeof(*ap);
+       if (i >= sizeof(struct aodv_ext))
+               aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|rreq"));
+}
+
+static void
+aodv_v6_rerr(netdissect_options *ndo, const u_char *dat, u_int length)
+{
+       u_int i, dc;
+       const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
+       const struct rerr_unreach6 *dp6;
+
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " rerr %s [items %u] [%u]:",
+           ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
+           ap->rerr_dc, length));
+       dp6 = (const struct rerr_unreach6 *)(const void *)(ap + 1);
+       i = length - sizeof(*ap);
+       for (dc = ap->rerr_dc; dc != 0; dc--) {
+               ND_TCHECK(*dp6);
+               if (i < sizeof(*dp6))
+                       goto trunc;
+               ND_PRINT((ndo, " {%s}(%ld)", ip6addr_string(ndo, &dp6->u_da),
+                   (unsigned long)EXTRACT_32BITS(&dp6->u_ds)));
+               dp6++;
+               i -= sizeof(*dp6);
        }
        }
-       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);
-#ifdef INET6
-       if (ip6 != NULL) {
-               for (; i -= j >= 0; ++dp6) {
-                       printf(" {%s}(%d)", ip6addr_string(&dp6->u_da),
-                               EXTRACT_32BITS(dp6->u_ds));
-               }
-       } else
-#endif
-       {
-               for (; i -= j >= 0; ++dp) {
-                       printf(" {%s}(%d)", ipaddr_string(dp->u_da),
-                               EXTRACT_32BITS(dp->u_ds));
-               }
+       return;
+
+trunc:
+       ND_PRINT((ndo, "[|rerr]"));
+}
+
+static void
+aodv_v6_draft_01_rreq(netdissect_options *ndo, const u_char *dat, u_int length)
+{
+       u_int i;
+       const struct aodv_rreq6_draft_01 *ap = (const struct aodv_rreq6_draft_01 *)dat;
+
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " 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(ndo, &ap->rreq_da),
+           (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
+           ip6addr_string(ndo, &ap->rreq_oa),
+           (unsigned long)EXTRACT_32BITS(&ap->rreq_os)));
+       i = length - sizeof(*ap);
+       if (i >= sizeof(struct aodv_ext))
+               aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|rreq"));
+}
+
+static void
+aodv_v6_draft_01_rrep(netdissect_options *ndo, const u_char *dat, u_int length)
+{
+       u_int i;
+       const struct aodv_rrep6_draft_01 *ap = (const struct aodv_rrep6_draft_01 *)dat;
+
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " 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(ndo, &ap->rrep_da),
+           (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
+           ip6addr_string(ndo, &ap->rrep_oa),
+           (unsigned long)EXTRACT_32BITS(&ap->rrep_life)));
+       i = length - sizeof(*ap);
+       if (i >= sizeof(struct aodv_ext))
+               aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|rreq"));
+}
+
+static void
+aodv_v6_draft_01_rerr(netdissect_options *ndo, const u_char *dat, u_int length)
+{
+       u_int i, dc;
+       const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
+       const struct rerr_unreach6_draft_01 *dp6;
+
+       ND_TCHECK(*ap);
+       if (length < sizeof(*ap))
+               goto trunc;
+       ND_PRINT((ndo, " rerr %s [items %u] [%u]:",
+           ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
+           ap->rerr_dc, length));
+       dp6 = (const struct rerr_unreach6_draft_01 *)(const void *)(ap + 1);
+       i = length - sizeof(*ap);
+       for (dc = ap->rerr_dc; dc != 0; dc--) {
+               ND_TCHECK(*dp6);
+               if (i < sizeof(*dp6))
+                       goto trunc;
+               ND_PRINT((ndo, " {%s}(%ld)", ip6addr_string(ndo, &dp6->u_da),
+                   (unsigned long)EXTRACT_32BITS(&dp6->u_ds)));
+               dp6++;
+               i -= sizeof(*dp6);
        }
        }
-       if (trunc)
-               printf("[|rerr]");
+       return;
+
+trunc:
+       ND_PRINT((ndo, "[|rerr]"));
 }
 
 void
 }
 
 void
-aodv_print(const u_char *dat, u_int length, void *ip6)
+aodv_print(netdissect_options *ndo,
+           const u_char *dat, u_int length, int is_ip6)
 {
 {
-       union aodv *ap;
+       uint8_t msg_type;
 
 
-       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");
+       /*
+        * The message type is the first byte; make sure we have it
+        * and then fetch it.
+        */
+       ND_TCHECK(*dat);
+       msg_type = *dat;
+       ND_PRINT((ndo, " aodv"));
+
+       switch (msg_type) {
 
 
-       switch (ap->rerr.rerr_type) {
        case AODV_RREQ:
        case AODV_RREQ:
-               aodv_rreq(ap, dat, length, ip6);
+               if (is_ip6)
+                       aodv_v6_rreq(ndo, dat, length);
+               else
+                       aodv_rreq(ndo, dat, length);
                break;
                break;
+
        case AODV_RREP:
        case AODV_RREP:
-               aodv_rrep(ap, dat, length, ip6);
+               if (is_ip6)
+                       aodv_v6_rrep(ndo, dat, length);
+               else
+                       aodv_rrep(ndo, dat, length);
                break;
                break;
+
        case AODV_RERR:
        case AODV_RERR:
-               aodv_rerr(ap, length, ip6);
+               if (is_ip6)
+                       aodv_v6_rerr(ndo, dat, length);
+               else
+                       aodv_rerr(ndo, dat, length);
                break;
                break;
+
        case AODV_RREP_ACK:
        case AODV_RREP_ACK:
-               printf(" rrep-ack %d", ap->rrep_ack.ra_type);
+               ND_PRINT((ndo, " rrep-ack %u", length));
+               break;
+
+       case AODV_V6_DRAFT_01_RREQ:
+               aodv_v6_draft_01_rreq(ndo, dat, length);
+               break;
+
+       case AODV_V6_DRAFT_01_RREP:
+               aodv_v6_draft_01_rrep(ndo, dat, length);
+               break;
+
+       case AODV_V6_DRAFT_01_RERR:
+               aodv_v6_draft_01_rerr(ndo, dat, length);
+               break;
+
+       case AODV_V6_DRAFT_01_RREP_ACK:
+               ND_PRINT((ndo, " rrep-ack %u", length));
                break;
 
        default:
                break;
 
        default:
-               printf(" %d %d", ap->rreq.rreq_type, length);
+               ND_PRINT((ndo, " type %u %u", msg_type, length));
        }
        }
+       return;
+
+trunc:
+       ND_PRINT((ndo, " [|aodv]"));
 }
 }
[mirror] the TCPdump network dissector