2 * Copyright (c) 2003 Bruce M. Simpson <bms@spc.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bruce M. Simpson.
16 * 4. Neither the name of Bruce M. Simpson nor the names of co-
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bruce M. Simpson AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Bruce M. Simpson OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
33 #define NETDISSECT_REWORKED
38 #include <tcpdump-stdinc.h>
40 #include "interface.h"
41 #include "addrtoname.h"
42 #include "extract.h" /* must come after interface.h */
46 uint8_t rreq_type; /* AODV message type (1) */
47 uint8_t rreq_flags; /* various flags */
48 uint8_t rreq_zero0; /* reserved, set to zero */
49 uint8_t rreq_hops; /* number of hops from originator */
50 uint32_t rreq_id; /* request ID */
51 uint32_t rreq_da; /* destination IPv4 address */
52 uint32_t rreq_ds; /* destination sequence number */
53 uint32_t rreq_oa; /* originator IPv4 address */
54 uint32_t rreq_os; /* originator sequence number */
58 uint8_t rreq_type; /* AODV message type (1) */
59 uint8_t rreq_flags; /* various flags */
60 uint8_t rreq_zero0; /* reserved, set to zero */
61 uint8_t rreq_hops; /* number of hops from originator */
62 uint32_t rreq_id; /* request ID */
63 struct in6_addr rreq_da; /* destination IPv6 address */
64 uint32_t rreq_ds; /* destination sequence number */
65 struct in6_addr rreq_oa; /* originator IPv6 address */
66 uint32_t rreq_os; /* originator sequence number */
68 struct aodv_rreq6_draft_01 {
69 uint8_t rreq_type; /* AODV message type (16) */
70 uint8_t rreq_flags; /* various flags */
71 uint8_t rreq_zero0; /* reserved, set to zero */
72 uint8_t rreq_hops; /* number of hops from originator */
73 uint32_t rreq_id; /* request ID */
74 uint32_t rreq_ds; /* destination sequence number */
75 uint32_t rreq_os; /* originator sequence number */
76 struct in6_addr rreq_da; /* destination IPv6 address */
77 struct in6_addr rreq_oa; /* originator IPv6 address */
81 #define RREQ_JOIN 0x80 /* join (reserved for multicast */
82 #define RREQ_REPAIR 0x40 /* repair (reserved for multicast */
83 #define RREQ_GRAT 0x20 /* gratuitous RREP */
84 #define RREQ_DEST 0x10 /* destination only */
85 #define RREQ_UNKNOWN 0x08 /* unknown destination sequence num */
86 #define RREQ_FLAGS_MASK 0xF8 /* mask for rreq_flags */
89 uint8_t rrep_type; /* AODV message type (2) */
90 uint8_t rrep_flags; /* various flags */
91 uint8_t rrep_ps; /* prefix size */
92 uint8_t rrep_hops; /* number of hops from o to d */
93 uint32_t rrep_da; /* destination IPv4 address */
94 uint32_t rrep_ds; /* destination sequence number */
95 uint32_t rrep_oa; /* originator IPv4 address */
96 uint32_t rrep_life; /* lifetime of this route */
100 uint8_t rrep_type; /* AODV message type (2) */
101 uint8_t rrep_flags; /* various flags */
102 uint8_t rrep_ps; /* prefix size */
103 uint8_t rrep_hops; /* number of hops from o to d */
104 struct in6_addr rrep_da; /* destination IPv6 address */
105 uint32_t rrep_ds; /* destination sequence number */
106 struct in6_addr rrep_oa; /* originator IPv6 address */
107 uint32_t rrep_life; /* lifetime of this route */
109 struct aodv_rrep6_draft_01 {
110 uint8_t rrep_type; /* AODV message type (17) */
111 uint8_t rrep_flags; /* various flags */
112 uint8_t rrep_ps; /* prefix size */
113 uint8_t rrep_hops; /* number of hops from o to d */
114 uint32_t rrep_ds; /* destination sequence number */
115 struct in6_addr rrep_da; /* destination IPv6 address */
116 struct in6_addr rrep_oa; /* originator IPv6 address */
117 uint32_t rrep_life; /* lifetime of this route */
121 #define RREP_REPAIR 0x80 /* repair (reserved for multicast */
122 #define RREP_ACK 0x40 /* acknowledgement required */
123 #define RREP_FLAGS_MASK 0xC0 /* mask for rrep_flags */
124 #define RREP_PREFIX_MASK 0x1F /* mask for prefix size */
126 struct rerr_unreach {
127 uint32_t u_da; /* IPv4 address */
128 uint32_t u_ds; /* sequence number */
131 struct rerr_unreach6 {
132 struct in6_addr u_da; /* IPv6 address */
133 uint32_t u_ds; /* sequence number */
135 struct rerr_unreach6_draft_01 {
136 struct in6_addr u_da; /* IPv6 address */
137 uint32_t u_ds; /* sequence number */
142 uint8_t rerr_type; /* AODV message type (3 or 18) */
143 uint8_t rerr_flags; /* various flags */
144 uint8_t rerr_zero0; /* reserved, set to zero */
145 uint8_t rerr_dc; /* destination count */
148 #define RERR_NODELETE 0x80 /* don't delete the link */
149 #define RERR_FLAGS_MASK 0x80 /* mask for rerr_flags */
151 struct aodv_rrep_ack {
156 #define AODV_RREQ 1 /* route request */
157 #define AODV_RREP 2 /* route response */
158 #define AODV_RERR 3 /* error report */
159 #define AODV_RREP_ACK 4 /* route response acknowledgement */
161 #define AODV_V6_DRAFT_01_RREQ 16 /* IPv6 route request */
162 #define AODV_V6_DRAFT_01_RREP 17 /* IPv6 route response */
163 #define AODV_V6_DRAFT_01_RERR 18 /* IPv6 error report */
164 #define AODV_V6_DRAFT_01_RREP_ACK 19 /* IPV6 route response acknowledgment */
167 uint8_t type; /* extension type */
168 uint8_t length; /* extension length */
172 struct aodv_ext eh; /* extension header */
173 uint8_t interval[4]; /* expect my next hello in
175 * NOTE: this is not aligned */
178 #define AODV_EXT_HELLO 1
181 aodv_extension(netdissect_options *ndo,
182 const struct aodv_ext *ep, u_int length)
184 const struct aodv_hello *ah;
188 ah = (const struct aodv_hello *)(const void *)ep;
190 if (length < sizeof(struct aodv_hello))
192 ND_PRINT((ndo, "\n\text HELLO %ld ms",
193 (unsigned long)EXTRACT_32BITS(&ah->interval)));
197 ND_PRINT((ndo, "\n\text %u %u", ep->type, ep->length));
203 ND_PRINT((ndo, " [|hello]"));
207 aodv_rreq(netdissect_options *ndo, const u_char *dat, u_int length)
210 const struct aodv_rreq *ap = (const struct aodv_rreq *)dat;
213 if (length < sizeof(*ap))
215 ND_PRINT((ndo, " rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
216 "\tdst %s seq %lu src %s seq %lu", length,
217 ap->rreq_type & RREQ_JOIN ? "[J]" : "",
218 ap->rreq_type & RREQ_REPAIR ? "[R]" : "",
219 ap->rreq_type & RREQ_GRAT ? "[G]" : "",
220 ap->rreq_type & RREQ_DEST ? "[D]" : "",
221 ap->rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
223 (unsigned long)EXTRACT_32BITS(&ap->rreq_id),
224 ipaddr_string(ndo, &ap->rreq_da),
225 (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
226 ipaddr_string(ndo, &ap->rreq_oa),
227 (unsigned long)EXTRACT_32BITS(&ap->rreq_os)));
228 i = length - sizeof(*ap);
229 if (i >= sizeof(struct aodv_ext))
230 aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
234 ND_PRINT((ndo, " [|rreq"));
238 aodv_rrep(netdissect_options *ndo, const u_char *dat, u_int length)
241 const struct aodv_rrep *ap = (const struct aodv_rrep *)dat;
244 if (length < sizeof(*ap))
246 ND_PRINT((ndo, " rrep %u %s%sprefix %u hops %u\n"
247 "\tdst %s dseq %lu src %s %lu ms", length,
248 ap->rrep_type & RREP_REPAIR ? "[R]" : "",
249 ap->rrep_type & RREP_ACK ? "[A] " : " ",
250 ap->rrep_ps & RREP_PREFIX_MASK,
252 ipaddr_string(ndo, &ap->rrep_da),
253 (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
254 ipaddr_string(ndo, &ap->rrep_oa),
255 (unsigned long)EXTRACT_32BITS(&ap->rrep_life)));
256 i = length - sizeof(*ap);
257 if (i >= sizeof(struct aodv_ext))
258 aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
262 ND_PRINT((ndo, " [|rreq"));
266 aodv_rerr(netdissect_options *ndo, const u_char *dat, u_int length)
269 const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
270 const struct rerr_unreach *dp;
273 if (length < sizeof(*ap))
275 ND_PRINT((ndo, " rerr %s [items %u] [%u]:",
276 ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
277 ap->rerr_dc, length));
278 dp = (struct rerr_unreach *)(dat + sizeof(*ap));
279 i = length - sizeof(*ap);
280 for (dc = ap->rerr_dc; dc != 0; dc--) {
284 ND_PRINT((ndo, " {%s}(%ld)", ipaddr_string(ndo, &dp->u_da),
285 (unsigned long)EXTRACT_32BITS(&dp->u_ds)));
292 ND_PRINT((ndo, "[|rerr]"));
297 aodv_v6_rreq(netdissect_options *ndo, const u_char *dat, u_int length)
299 aodv_v6_rreq(netdissect_options *ndo, const u_char *dat _U_, u_int length)
304 const struct aodv_rreq6 *ap = (const struct aodv_rreq6 *)dat;
307 if (length < sizeof(*ap))
309 ND_PRINT((ndo, " v6 rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
310 "\tdst %s seq %lu src %s seq %lu", length,
311 ap->rreq_type & RREQ_JOIN ? "[J]" : "",
312 ap->rreq_type & RREQ_REPAIR ? "[R]" : "",
313 ap->rreq_type & RREQ_GRAT ? "[G]" : "",
314 ap->rreq_type & RREQ_DEST ? "[D]" : "",
315 ap->rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
317 (unsigned long)EXTRACT_32BITS(&ap->rreq_id),
318 ip6addr_string(ndo, &ap->rreq_da),
319 (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
320 ip6addr_string(ndo, &ap->rreq_oa),
321 (unsigned long)EXTRACT_32BITS(&ap->rreq_os)));
322 i = length - sizeof(*ap);
323 if (i >= sizeof(struct aodv_ext))
324 aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
328 ND_PRINT((ndo, " [|rreq"));
330 ND_PRINT((ndo, " v6 rreq %u", length));
336 aodv_v6_rrep(netdissect_options *ndo, const u_char *dat, u_int length)
338 aodv_v6_rrep(netdissect_options *ndo, const u_char *dat _U_, u_int length)
343 const struct aodv_rrep6 *ap = (const struct aodv_rrep6 *)dat;
346 if (length < sizeof(*ap))
348 ND_PRINT((ndo, " rrep %u %s%sprefix %u hops %u\n"
349 "\tdst %s dseq %lu src %s %lu ms", length,
350 ap->rrep_type & RREP_REPAIR ? "[R]" : "",
351 ap->rrep_type & RREP_ACK ? "[A] " : " ",
352 ap->rrep_ps & RREP_PREFIX_MASK,
354 ip6addr_string(ndo, &ap->rrep_da),
355 (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
356 ip6addr_string(ndo, &ap->rrep_oa),
357 (unsigned long)EXTRACT_32BITS(&ap->rrep_life)));
358 i = length - sizeof(*ap);
359 if (i >= sizeof(struct aodv_ext))
360 aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
364 ND_PRINT((ndo, " [|rreq"));
366 ND_PRINT((ndo, " rrep %u", length));
372 aodv_v6_rerr(netdissect_options *ndo, const u_char *dat, u_int length)
374 aodv_v6_rerr(netdissect_options *ndo, const u_char *dat _U_, u_int length)
379 const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
380 const struct rerr_unreach6 *dp6;
383 if (length < sizeof(*ap))
385 ND_PRINT((ndo, " rerr %s [items %u] [%u]:",
386 ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
387 ap->rerr_dc, length));
388 dp6 = (struct rerr_unreach6 *)(void *)(ap + 1);
389 i = length - sizeof(*ap);
390 for (dc = ap->rerr_dc; dc != 0; dc--) {
392 if (i < sizeof(*dp6))
394 ND_PRINT((ndo, " {%s}(%ld)", ip6addr_string(ndo, &dp6->u_da),
395 (unsigned long)EXTRACT_32BITS(&dp6->u_ds)));
402 ND_PRINT((ndo, "[|rerr]"));
404 ND_PRINT((ndo, " rerr %u", length));
410 aodv_v6_draft_01_rreq(netdissect_options *ndo, const u_char *dat, u_int length)
412 aodv_v6_draft_01_rreq(netdissect_options *ndo, const u_char *dat _U_, u_int length)
417 const struct aodv_rreq6_draft_01 *ap = (const struct aodv_rreq6_draft_01 *)dat;
420 if (length < sizeof(*ap))
422 ND_PRINT((ndo, " rreq %u %s%s%s%s%shops %u id 0x%08lx\n"
423 "\tdst %s seq %lu src %s seq %lu", length,
424 ap->rreq_type & RREQ_JOIN ? "[J]" : "",
425 ap->rreq_type & RREQ_REPAIR ? "[R]" : "",
426 ap->rreq_type & RREQ_GRAT ? "[G]" : "",
427 ap->rreq_type & RREQ_DEST ? "[D]" : "",
428 ap->rreq_type & RREQ_UNKNOWN ? "[U] " : " ",
430 (unsigned long)EXTRACT_32BITS(&ap->rreq_id),
431 ip6addr_string(ndo, &ap->rreq_da),
432 (unsigned long)EXTRACT_32BITS(&ap->rreq_ds),
433 ip6addr_string(ndo, &ap->rreq_oa),
434 (unsigned long)EXTRACT_32BITS(&ap->rreq_os)));
435 i = length - sizeof(*ap);
436 if (i >= sizeof(struct aodv_ext))
437 aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
441 ND_PRINT((ndo, " [|rreq"));
443 ND_PRINT((ndo, " rreq %u", length));
449 aodv_v6_draft_01_rrep(netdissect_options *ndo, const u_char *dat, u_int length)
451 aodv_v6_draft_01_rrep(netdissect_options *ndo, const u_char *dat _U_, u_int length)
456 const struct aodv_rrep6_draft_01 *ap = (const struct aodv_rrep6_draft_01 *)dat;
459 if (length < sizeof(*ap))
461 ND_PRINT((ndo, " rrep %u %s%sprefix %u hops %u\n"
462 "\tdst %s dseq %lu src %s %lu ms", length,
463 ap->rrep_type & RREP_REPAIR ? "[R]" : "",
464 ap->rrep_type & RREP_ACK ? "[A] " : " ",
465 ap->rrep_ps & RREP_PREFIX_MASK,
467 ip6addr_string(ndo, &ap->rrep_da),
468 (unsigned long)EXTRACT_32BITS(&ap->rrep_ds),
469 ip6addr_string(ndo, &ap->rrep_oa),
470 (unsigned long)EXTRACT_32BITS(&ap->rrep_life)));
471 i = length - sizeof(*ap);
472 if (i >= sizeof(struct aodv_ext))
473 aodv_extension(ndo, (const struct aodv_ext *)(dat + sizeof(*ap)), i);
477 ND_PRINT((ndo, " [|rreq"));
479 ND_PRINT((ndo, " rrep %u", length));
485 aodv_v6_draft_01_rerr(netdissect_options *ndo, const u_char *dat, u_int length)
487 aodv_v6_draft_01_rerr(netdissect_options *ndo, const u_char *dat _U_, u_int length)
492 const struct aodv_rerr *ap = (const struct aodv_rerr *)dat;
493 const struct rerr_unreach6_draft_01 *dp6;
496 if (length < sizeof(*ap))
498 ND_PRINT((ndo, " rerr %s [items %u] [%u]:",
499 ap->rerr_flags & RERR_NODELETE ? "[D]" : "",
500 ap->rerr_dc, length));
501 dp6 = (struct rerr_unreach6_draft_01 *)(void *)(ap + 1);
502 i = length - sizeof(*ap);
503 for (dc = ap->rerr_dc; dc != 0; dc--) {
505 if (i < sizeof(*dp6))
507 ND_PRINT((ndo, " {%s}(%ld)", ip6addr_string(ndo, &dp6->u_da),
508 (unsigned long)EXTRACT_32BITS(&dp6->u_ds)));
515 ND_PRINT((ndo, "[|rerr]"));
517 ND_PRINT((ndo, " rerr %u", length));
522 aodv_print(netdissect_options *ndo,
523 const u_char *dat, u_int length, int is_ip6)
528 * The message type is the first byte; make sure we have it
533 ND_PRINT((ndo, " aodv"));
539 aodv_v6_rreq(ndo, dat, length);
541 aodv_rreq(ndo, dat, length);
546 aodv_v6_rrep(ndo, dat, length);
548 aodv_rrep(ndo, dat, length);
553 aodv_v6_rerr(ndo, dat, length);
555 aodv_rerr(ndo, dat, length);
559 ND_PRINT((ndo, " rrep-ack %u", length));
562 case AODV_V6_DRAFT_01_RREQ:
563 aodv_v6_draft_01_rreq(ndo, dat, length);
566 case AODV_V6_DRAFT_01_RREP:
567 aodv_v6_draft_01_rrep(ndo, dat, length);
570 case AODV_V6_DRAFT_01_RERR:
571 aodv_v6_draft_01_rerr(ndo, dat, length);
574 case AODV_V6_DRAFT_01_RREP_ACK:
575 ND_PRINT((ndo, " rrep-ack %u", length));
579 ND_PRINT((ndo, " type %u %u", msg_type, length));
584 ND_PRINT((ndo, " [|aodv]"));