X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/11d3a01319e295dcabfb2647302d278938449226..9f957a5883cb4c5c99cefa71b42fc9d2d27d73e1:/print-aodv.c diff --git a/print-aodv.c b/print-aodv.c index 6cd0c9ea..967f31b8 100644 --- a/print-aodv.c +++ b/print-aodv.c @@ -42,37 +42,39 @@ #include "addrtoname.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 */ + nd_uint8_t rreq_type; /* AODV message type (1) */ + nd_uint8_t rreq_flags; /* various flags */ + nd_uint8_t rreq_zero0; /* reserved, set to zero */ + nd_uint8_t rreq_hops; /* number of hops from originator */ + nd_uint32_t rreq_id; /* request ID */ + nd_uint32_t rreq_da; /* destination IPv4 address */ + nd_uint32_t rreq_ds; /* destination sequence number */ + nd_uint32_t rreq_oa; /* originator IPv4 address */ + nd_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 */ + nd_uint8_t rreq_type; /* AODV message type (1) */ + nd_uint8_t rreq_flags; /* various flags */ + nd_uint8_t rreq_zero0; /* reserved, set to zero */ + nd_uint8_t rreq_hops; /* number of hops from originator */ + nd_uint32_t rreq_id; /* request ID */ struct in6_addr rreq_da; /* destination IPv6 address */ - uint32_t rreq_ds; /* destination sequence number */ + nd_uint32_t rreq_ds; /* destination sequence number */ struct in6_addr rreq_oa; /* originator IPv6 address */ - uint32_t rreq_os; /* originator sequence number */ + nd_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 */ + nd_uint8_t rreq_type; /* AODV message type (16) */ + nd_uint8_t rreq_flags; /* various flags */ + nd_uint8_t rreq_zero0; /* reserved, set to zero */ + nd_uint8_t rreq_hops; /* number of hops from originator */ + nd_uint32_t rreq_id; /* request ID */ + nd_uint32_t rreq_ds; /* destination sequence number */ + nd_uint32_t rreq_os; /* originator sequence number */ struct in6_addr rreq_da; /* destination IPv6 address */ struct in6_addr rreq_oa; /* originator IPv6 address */ }; @@ -85,34 +87,34 @@ struct aodv_rreq6_draft_01 { #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 */ + nd_uint8_t rrep_type; /* AODV message type (2) */ + nd_uint8_t rrep_flags; /* various flags */ + nd_uint8_t rrep_ps; /* prefix size */ + nd_uint8_t rrep_hops; /* number of hops from o to d */ + nd_uint32_t rrep_da; /* destination IPv4 address */ + nd_uint32_t rrep_ds; /* destination sequence number */ + nd_uint32_t rrep_oa; /* originator IPv4 address */ + nd_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 */ + nd_uint8_t rrep_type; /* AODV message type (2) */ + nd_uint8_t rrep_flags; /* various flags */ + nd_uint8_t rrep_ps; /* prefix size */ + nd_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 */ + nd_uint32_t rrep_ds; /* destination sequence number */ struct in6_addr rrep_oa; /* originator IPv6 address */ - uint32_t rrep_life; /* lifetime of this route */ + nd_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 */ + nd_uint8_t rrep_type; /* AODV message type (17) */ + nd_uint8_t rrep_flags; /* various flags */ + nd_uint8_t rrep_ps; /* prefix size */ + nd_uint8_t rrep_hops; /* number of hops from o to d */ + nd_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 */ + nd_uint32_t rrep_life; /* lifetime of this route */ }; #define RREP_REPAIR 0x80 /* repair (reserved for multicast */ @@ -121,31 +123,31 @@ struct aodv_rrep6_draft_01 { #define RREP_PREFIX_MASK 0x1F /* mask for prefix size */ struct rerr_unreach { - uint32_t u_da; /* IPv4 address */ - uint32_t u_ds; /* sequence number */ + nd_uint32_t u_da; /* IPv4 address */ + nd_uint32_t u_ds; /* sequence number */ }; struct rerr_unreach6 { struct in6_addr u_da; /* IPv6 address */ - uint32_t u_ds; /* sequence number */ + nd_uint32_t u_ds; /* sequence number */ }; struct rerr_unreach6_draft_01 { struct in6_addr u_da; /* IPv6 address */ - uint32_t u_ds; /* sequence number */ + nd_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 */ + nd_uint8_t rerr_type; /* AODV message type (3 or 18) */ + nd_uint8_t rerr_flags; /* various flags */ + nd_uint8_t rerr_zero0; /* reserved, set to zero */ + nd_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; + nd_uint8_t ra_type; + nd_uint8_t ra_zero0; }; #define AODV_RREQ 1 /* route request */ @@ -159,13 +161,13 @@ struct aodv_rrep_ack { #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 */ + nd_uint8_t type; /* extension type */ + nd_uint8_t length; /* extension length */ }; struct aodv_hello { struct aodv_ext eh; /* extension header */ - uint8_t interval[4]; /* expect my next hello in + nd_uint32_t interval; /* expect my next hello in * (n) ms * NOTE: this is not aligned */ }; @@ -178,18 +180,23 @@ aodv_extension(netdissect_options *ndo, { const struct aodv_hello *ah; - switch (ep->type) { + ND_TCHECK(*ep); + switch (EXTRACT_U_1(ep->type)) { case AODV_EXT_HELLO: ah = (const struct aodv_hello *)(const void *)ep; ND_TCHECK(*ah); if (length < sizeof(struct aodv_hello)) goto trunc; - ND_PRINT((ndo, "\n\text HELLO %ld ms", - (unsigned long)EXTRACT_32BITS(&ah->interval))); + if (EXTRACT_U_1(ep->length) < 4) { + ND_PRINT((ndo, "\n\text HELLO - bad length %u", EXTRACT_U_1(ep->length))); + break; + } + ND_PRINT((ndo, "\n\text HELLO %u ms", + EXTRACT_BE_U_4(ah->interval))); break; default: - ND_PRINT((ndo, "\n\text %u %u", ep->type, ep->length)); + ND_PRINT((ndo, "\n\text %u %u", EXTRACT_U_1(ep->type), EXTRACT_U_1(ep->length))); break; } return; @@ -207,19 +214,19 @@ aodv_rreq(netdissect_options *ndo, const u_char *dat, u_int length) 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), + ND_PRINT((ndo, " rreq %u %s%s%s%s%shops %u id 0x%08x\n" + "\tdst %s seq %u src %s seq %u", length, + EXTRACT_U_1(ap->rreq_type) & RREQ_JOIN ? "[J]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_REPAIR ? "[R]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_GRAT ? "[G]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_DEST ? "[D]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_UNKNOWN ? "[U] " : " ", + EXTRACT_U_1(ap->rreq_hops), + EXTRACT_BE_U_4(ap->rreq_id), ipaddr_string(ndo, &ap->rreq_da), - (unsigned long)EXTRACT_32BITS(&ap->rreq_ds), + EXTRACT_BE_U_4(ap->rreq_ds), ipaddr_string(ndo, &ap->rreq_oa), - (unsigned long)EXTRACT_32BITS(&ap->rreq_os))); + EXTRACT_BE_U_4(ap->rreq_os))); i = length - sizeof(*ap); if (i >= sizeof(struct aodv_ext)) aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i); @@ -239,15 +246,15 @@ aodv_rrep(netdissect_options *ndo, const u_char *dat, u_int length) 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, + "\tdst %s dseq %u src %s %u ms", length, + EXTRACT_U_1(ap->rrep_type) & RREP_REPAIR ? "[R]" : "", + EXTRACT_U_1(ap->rrep_type) & RREP_ACK ? "[A] " : " ", + EXTRACT_U_1(ap->rrep_ps) & RREP_PREFIX_MASK, + EXTRACT_U_1(ap->rrep_hops), ipaddr_string(ndo, &ap->rrep_da), - (unsigned long)EXTRACT_32BITS(&ap->rrep_ds), + EXTRACT_BE_U_4(ap->rrep_ds), ipaddr_string(ndo, &ap->rrep_oa), - (unsigned long)EXTRACT_32BITS(&ap->rrep_life))); + EXTRACT_BE_U_4(ap->rrep_life))); i = length - sizeof(*ap); if (i >= sizeof(struct aodv_ext)) aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i); @@ -268,16 +275,16 @@ aodv_rerr(netdissect_options *ndo, const u_char *dat, u_int length) if (length < sizeof(*ap)) goto trunc; ND_PRINT((ndo, " rerr %s [items %u] [%u]:", - ap->rerr_flags & RERR_NODELETE ? "[D]" : "", - ap->rerr_dc, length)); + EXTRACT_U_1(ap->rerr_flags) & RERR_NODELETE ? "[D]" : "", + EXTRACT_U_1(ap->rerr_dc), length)); dp = (const struct rerr_unreach *)(dat + sizeof(*ap)); i = length - sizeof(*ap); - for (dc = ap->rerr_dc; dc != 0; dc--) { + for (dc = EXTRACT_U_1(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))); + ND_PRINT((ndo, " {%s}(%u)", ipaddr_string(ndo, &dp->u_da), + EXTRACT_BE_U_4(dp->u_ds))); dp++; i -= sizeof(*dp); } @@ -296,19 +303,19 @@ aodv_v6_rreq(netdissect_options *ndo, const u_char *dat, u_int length) 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), + ND_PRINT((ndo, " v6 rreq %u %s%s%s%s%shops %u id 0x%08x\n" + "\tdst %s seq %u src %s seq %u", length, + EXTRACT_U_1(ap->rreq_type) & RREQ_JOIN ? "[J]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_REPAIR ? "[R]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_GRAT ? "[G]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_DEST ? "[D]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_UNKNOWN ? "[U] " : " ", + EXTRACT_U_1(ap->rreq_hops), + EXTRACT_BE_U_4(ap->rreq_id), ip6addr_string(ndo, &ap->rreq_da), - (unsigned long)EXTRACT_32BITS(&ap->rreq_ds), + EXTRACT_BE_U_4(ap->rreq_ds), ip6addr_string(ndo, &ap->rreq_oa), - (unsigned long)EXTRACT_32BITS(&ap->rreq_os))); + EXTRACT_BE_U_4(ap->rreq_os))); i = length - sizeof(*ap); if (i >= sizeof(struct aodv_ext)) aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i); @@ -328,15 +335,15 @@ aodv_v6_rrep(netdissect_options *ndo, const u_char *dat, u_int length) 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, + "\tdst %s dseq %u src %s %u ms", length, + EXTRACT_U_1(ap->rrep_type) & RREP_REPAIR ? "[R]" : "", + EXTRACT_U_1(ap->rrep_type) & RREP_ACK ? "[A] " : " ", + EXTRACT_U_1(ap->rrep_ps) & RREP_PREFIX_MASK, + EXTRACT_U_1(ap->rrep_hops), ip6addr_string(ndo, &ap->rrep_da), - (unsigned long)EXTRACT_32BITS(&ap->rrep_ds), + EXTRACT_BE_U_4(ap->rrep_ds), ip6addr_string(ndo, &ap->rrep_oa), - (unsigned long)EXTRACT_32BITS(&ap->rrep_life))); + EXTRACT_BE_U_4(ap->rrep_life))); i = length - sizeof(*ap); if (i >= sizeof(struct aodv_ext)) aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i); @@ -357,16 +364,16 @@ aodv_v6_rerr(netdissect_options *ndo, const u_char *dat, u_int length) if (length < sizeof(*ap)) goto trunc; ND_PRINT((ndo, " rerr %s [items %u] [%u]:", - ap->rerr_flags & RERR_NODELETE ? "[D]" : "", - ap->rerr_dc, length)); + EXTRACT_U_1(ap->rerr_flags) & RERR_NODELETE ? "[D]" : "", + EXTRACT_U_1(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--) { + for (dc = EXTRACT_U_1(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))); + ND_PRINT((ndo, " {%s}(%u)", ip6addr_string(ndo, &dp6->u_da), + EXTRACT_BE_U_4(dp6->u_ds))); dp6++; i -= sizeof(*dp6); } @@ -385,19 +392,19 @@ aodv_v6_draft_01_rreq(netdissect_options *ndo, const u_char *dat, u_int length) 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), + ND_PRINT((ndo, " rreq %u %s%s%s%s%shops %u id 0x%08x\n" + "\tdst %s seq %u src %s seq %u", length, + EXTRACT_U_1(ap->rreq_type) & RREQ_JOIN ? "[J]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_REPAIR ? "[R]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_GRAT ? "[G]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_DEST ? "[D]" : "", + EXTRACT_U_1(ap->rreq_type) & RREQ_UNKNOWN ? "[U] " : " ", + EXTRACT_U_1(ap->rreq_hops), + EXTRACT_BE_U_4(ap->rreq_id), ip6addr_string(ndo, &ap->rreq_da), - (unsigned long)EXTRACT_32BITS(&ap->rreq_ds), + EXTRACT_BE_U_4(ap->rreq_ds), ip6addr_string(ndo, &ap->rreq_oa), - (unsigned long)EXTRACT_32BITS(&ap->rreq_os))); + EXTRACT_BE_U_4(ap->rreq_os))); i = length - sizeof(*ap); if (i >= sizeof(struct aodv_ext)) aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i); @@ -417,15 +424,15 @@ aodv_v6_draft_01_rrep(netdissect_options *ndo, const u_char *dat, u_int length) 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, + "\tdst %s dseq %u src %s %u ms", length, + EXTRACT_U_1(ap->rrep_type) & RREP_REPAIR ? "[R]" : "", + EXTRACT_U_1(ap->rrep_type) & RREP_ACK ? "[A] " : " ", + EXTRACT_U_1(ap->rrep_ps) & RREP_PREFIX_MASK, + EXTRACT_U_1(ap->rrep_hops), ip6addr_string(ndo, &ap->rrep_da), - (unsigned long)EXTRACT_32BITS(&ap->rrep_ds), + EXTRACT_BE_U_4(ap->rrep_ds), ip6addr_string(ndo, &ap->rrep_oa), - (unsigned long)EXTRACT_32BITS(&ap->rrep_life))); + EXTRACT_BE_U_4(ap->rrep_life))); i = length - sizeof(*ap); if (i >= sizeof(struct aodv_ext)) aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i); @@ -446,16 +453,16 @@ aodv_v6_draft_01_rerr(netdissect_options *ndo, const u_char *dat, u_int length) if (length < sizeof(*ap)) goto trunc; ND_PRINT((ndo, " rerr %s [items %u] [%u]:", - ap->rerr_flags & RERR_NODELETE ? "[D]" : "", - ap->rerr_dc, length)); + EXTRACT_U_1(ap->rerr_flags) & RERR_NODELETE ? "[D]" : "", + EXTRACT_U_1(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--) { + for (dc = EXTRACT_U_1(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))); + ND_PRINT((ndo, " {%s}(%u)", ip6addr_string(ndo, &dp6->u_da), + EXTRACT_BE_U_4(dp6->u_ds))); dp6++; i -= sizeof(*dp6); } @@ -475,8 +482,8 @@ aodv_print(netdissect_options *ndo, * The message type is the first byte; make sure we have it * and then fetch it. */ - ND_TCHECK(*dat); - msg_type = *dat; + ND_TCHECK_1(dat); + msg_type = EXTRACT_U_1(dat); ND_PRINT((ndo, " aodv")); switch (msg_type) {