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gre: add support for MikroTik Ethernet-over-IP hack.
[tcpdump] / print-rsvp.c
1 /*
2 * Copyright (c) 1998-2007 The TCPDUMP project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that: (1) source code
6 * distributions retain the above copyright notice and this paragraph
7 * in its entirety, and (2) distributions including binary code include
8 * the above copyright notice and this paragraph in its entirety in
9 * the documentation or other materials provided with the distribution.
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
13 * FOR A PARTICULAR PURPOSE.
14 *
15 * Original code by Hannes Gredler (hannes@gredler.at)
16 */
17
18 /* \summary: Resource ReSerVation Protocol (RSVP) printer */
19
20 /* specification: RFC 2205 */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include "netdissect-stdinc.h"
27
28 #define ND_LONGJMP_FROM_TCHECK
29 #include "netdissect.h"
30 #include "extract.h"
31 #include "addrtoname.h"
32 #include "ethertype.h"
33 #include "gmpls.h"
34 #include "af.h"
35 #include "signature.h"
36
37
38 /*
39 * RFC 2205 common header
40 *
41 * 0 1 2 3
42 * +-------------+-------------+-------------+-------------+
43 * | Vers | Flags| Msg Type | RSVP Checksum |
44 * +-------------+-------------+-------------+-------------+
45 * | Send_TTL | (Reserved) | RSVP Length |
46 * +-------------+-------------+-------------+-------------+
47 *
48 */
49
50 struct rsvp_common_header {
51 nd_uint8_t version_flags;
52 nd_uint8_t msg_type;
53 nd_uint16_t checksum;
54 nd_uint8_t ttl;
55 nd_byte reserved[1];
56 nd_uint16_t length;
57 };
58
59 /*
60 * RFC2205 object header
61 *
62 *
63 * 0 1 2 3
64 * +-------------+-------------+-------------+-------------+
65 * | Length (bytes) | Class-Num | C-Type |
66 * +-------------+-------------+-------------+-------------+
67 * | |
68 * // (Object contents) //
69 * | |
70 * +-------------+-------------+-------------+-------------+
71 */
72
73 struct rsvp_object_header {
74 nd_uint16_t length;
75 nd_uint8_t class_num;
76 nd_uint8_t ctype;
77 };
78
79 #define RSVP_VERSION 1
80 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
81 #define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f)
82
83 #define RSVP_MSGTYPE_PATH 1
84 #define RSVP_MSGTYPE_RESV 2
85 #define RSVP_MSGTYPE_PATHERR 3
86 #define RSVP_MSGTYPE_RESVERR 4
87 #define RSVP_MSGTYPE_PATHTEAR 5
88 #define RSVP_MSGTYPE_RESVTEAR 6
89 #define RSVP_MSGTYPE_RESVCONF 7
90 #define RSVP_MSGTYPE_BUNDLE 12
91 #define RSVP_MSGTYPE_ACK 13
92 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
93 #define RSVP_MSGTYPE_SREFRESH 15
94 #define RSVP_MSGTYPE_HELLO 20
95
96 static const struct tok rsvp_msg_type_values[] = {
97 { RSVP_MSGTYPE_PATH, "Path" },
98 { RSVP_MSGTYPE_RESV, "Resv" },
99 { RSVP_MSGTYPE_PATHERR, "PathErr" },
100 { RSVP_MSGTYPE_RESVERR, "ResvErr" },
101 { RSVP_MSGTYPE_PATHTEAR, "PathTear" },
102 { RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
103 { RSVP_MSGTYPE_RESVCONF, "ResvConf" },
104 { RSVP_MSGTYPE_BUNDLE, "Bundle" },
105 { RSVP_MSGTYPE_ACK, "Acknowledgement" },
106 { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
107 { RSVP_MSGTYPE_SREFRESH, "Refresh" },
108 { RSVP_MSGTYPE_HELLO, "Hello" },
109 { 0, NULL}
110 };
111
112 static const struct tok rsvp_header_flag_values[] = {
113 { 0x01, "Refresh reduction capable" }, /* rfc2961 */
114 { 0, NULL}
115 };
116
117 static const struct tok rsvp_obj_capability_flag_values[] = {
118 { 0x0004, "RecoveryPath Transmit Enabled" },
119 { 0x0002, "RecoveryPath Desired" },
120 { 0x0001, "RecoveryPath Srefresh Capable" },
121 { 0, NULL}
122 };
123
124 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
125 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
126 #define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
127 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
128 #define RSVP_OBJ_ERROR_SPEC 6
129 #define RSVP_OBJ_SCOPE 7
130 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
131 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
132 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
133 #define RSVP_OBJ_SENDER_TEMPLATE 11
134 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
135 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
136 #define RSVP_OBJ_POLICY_DATA 14
137 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
138 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
139 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
140 #define RSVP_OBJ_ERO 20 /* rfc3209 */
141 #define RSVP_OBJ_RRO 21 /* rfc3209 */
142 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
143 #define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */
144 #define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */
145 #define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */
146 #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
147 #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
148 #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
149 #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
150 #define RSVP_OBJ_S2L 50 /* rfc4875 */
151 #define RSVP_OBJ_DETOUR 63 /* rfc4090 */
152 #define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
153 #define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
154 #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
155 #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
156 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
157 #define RSVP_OBJ_CAPABILITY 134 /* rfc5063 */
158 #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
159 #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
160 #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
161 #define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */
162 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
163 #define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
164 #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
165 #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
166
167 static const struct tok rsvp_obj_values[] = {
168 { RSVP_OBJ_SESSION, "Session" },
169 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
170 { RSVP_OBJ_INTEGRITY, "Integrity" },
171 { RSVP_OBJ_TIME_VALUES, "Time Values" },
172 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
173 { RSVP_OBJ_SCOPE, "Scope" },
174 { RSVP_OBJ_STYLE, "Style" },
175 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
176 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
177 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
178 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
179 { RSVP_OBJ_ADSPEC, "Adspec" },
180 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
181 { RSVP_OBJ_CONFIRM, "Confirm" },
182 { RSVP_OBJ_LABEL, "Label" },
183 { RSVP_OBJ_LABEL_REQ, "Label Request" },
184 { RSVP_OBJ_ERO, "ERO" },
185 { RSVP_OBJ_RRO, "RRO" },
186 { RSVP_OBJ_HELLO, "Hello" },
187 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
188 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
189 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
190 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
191 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
192 { RSVP_OBJ_LABEL_SET, "Label Set" },
193 { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
194 { RSVP_OBJ_DETOUR, "Detour" },
195 { RSVP_OBJ_CLASSTYPE, "Class Type" },
196 { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" },
197 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
198 { RSVP_OBJ_PROPERTIES, "Properties" },
199 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
200 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
201 { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" },
202 { RSVP_OBJ_CALL_ID, "Call-ID" },
203 { RSVP_OBJ_CALL_OPS, "Call Capability" },
204 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
205 { RSVP_OBJ_CAPABILITY, "Capability" },
206 { RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
207 { RSVP_OBJ_PROTECTION, "Protection" },
208 { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
209 { RSVP_OBJ_S2L, "Sub-LSP to LSP" },
210 { 0, NULL}
211 };
212
213 #define RSVP_CTYPE_IPV4 1
214 #define RSVP_CTYPE_IPV6 2
215 #define RSVP_CTYPE_TUNNEL_IPV4 7
216 #define RSVP_CTYPE_TUNNEL_IPV6 8
217 #define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */
218 #define RSVP_CTYPE_1 1
219 #define RSVP_CTYPE_2 2
220 #define RSVP_CTYPE_3 3
221 #define RSVP_CTYPE_4 4
222 #define RSVP_CTYPE_12 12
223 #define RSVP_CTYPE_13 13
224 #define RSVP_CTYPE_14 14
225
226 /*
227 * the ctypes are not globally unique so for
228 * translating it to strings we build a table based
229 * on objects offsetted by the ctype
230 */
231
232 static const struct tok rsvp_ctype_values[] = {
233 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
234 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
235 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
236 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
237 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
238 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
239 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
240 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
241 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
242 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
243 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
244 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
245 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
246 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
247 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
248 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
249 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
250 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
251 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
252 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
253 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
254 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
255 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" },
256 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" },
257 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" },
258 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
259 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
260 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
261 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
262 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
263 { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
264 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" },
265 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" },
266 { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
267 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
268 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
269 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
270 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
271 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
272 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
273 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
274 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
275 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
276 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
277 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
278 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
279 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
280 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
281 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
282 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
283 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
284 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
285 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
286 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
287 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
288 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
289 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
290 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
291 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
292 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
293 { 256*RSVP_OBJ_CAPABILITY+RSVP_CTYPE_1, "1" },
294 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
295 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
296 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
297 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
298 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
299 { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" },
300 { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
301 { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" },
302 { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" },
303 { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" },
304 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" },
305 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" },
306 { 0, NULL}
307 };
308
309 /*
310 * XXX - this assumes a 16-byte digest, which is true for HMAC-MD5, but
311 * isn't necessarily the case for other hash algorithms.
312 *
313 * Unless I've missed something, there's nothing in RFC 2747 to indicate
314 * the hash algorithm being used, so it's presumably something set up
315 * out-of-band, or negotiated by other RSVP objects.
316 */
317 struct rsvp_obj_integrity_t {
318 uint8_t flags;
319 uint8_t res;
320 uint8_t key_id[6];
321 uint8_t sequence[8];
322 uint8_t digest[16];
323 };
324
325 static const struct tok rsvp_obj_integrity_flag_values[] = {
326 { 0x80, "Handshake" },
327 { 0, NULL}
328 };
329
330 struct rsvp_obj_frr_t {
331 uint8_t setup_prio;
332 uint8_t hold_prio;
333 uint8_t hop_limit;
334 uint8_t flags;
335 uint8_t bandwidth[4];
336 uint8_t include_any[4];
337 uint8_t exclude_any[4];
338 uint8_t include_all[4];
339 };
340
341
342 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
343 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
344
345 #define RSVP_OBJ_CAPABILITY_FLAGS_MASK 0x7U
346
347 #define RSVP_OBJ_XRO_RES 0
348 #define RSVP_OBJ_XRO_IPV4 1
349 #define RSVP_OBJ_XRO_IPV6 2
350 #define RSVP_OBJ_XRO_LABEL 3
351 #define RSVP_OBJ_XRO_ASN 32
352 #define RSVP_OBJ_XRO_MPLS 64
353
354 static const struct tok rsvp_obj_xro_values[] = {
355 { RSVP_OBJ_XRO_RES, "Reserved" },
356 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
357 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
358 { RSVP_OBJ_XRO_LABEL, "Label" },
359 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
360 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
361 { 0, NULL}
362 };
363
364 /* RFC4090 */
365 static const struct tok rsvp_obj_rro_flag_values[] = {
366 { 0x01, "Local protection available" },
367 { 0x02, "Local protection in use" },
368 { 0x04, "Bandwidth protection" },
369 { 0x08, "Node protection" },
370 { 0, NULL}
371 };
372
373 /* RFC3209 */
374 static const struct tok rsvp_obj_rro_label_flag_values[] = {
375 { 0x01, "Global" },
376 { 0, NULL}
377 };
378
379 static const struct tok rsvp_resstyle_values[] = {
380 { 17, "Wildcard Filter" },
381 { 10, "Fixed Filter" },
382 { 18, "Shared Explicit" },
383 { 0, NULL}
384 };
385
386 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
387 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
388
389 static const struct tok rsvp_intserv_service_type_values[] = {
390 { 1, "Default/Global Information" },
391 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
392 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
393 { 0, NULL}
394 };
395
396 static const struct tok rsvp_intserv_parameter_id_values[] = {
397 { 4, "IS hop cnt" },
398 { 6, "Path b/w estimate" },
399 { 8, "Minimum path latency" },
400 { 10, "Composed MTU" },
401 { 127, "Token Bucket TSpec" },
402 { 130, "Guaranteed Service RSpec" },
403 { 133, "End-to-end composed value for C" },
404 { 134, "End-to-end composed value for D" },
405 { 135, "Since-last-reshaping point composed C" },
406 { 136, "Since-last-reshaping point composed D" },
407 { 0, NULL}
408 };
409
410 static const struct tok rsvp_session_attribute_flag_values[] = {
411 { 0x01, "Local Protection" },
412 { 0x02, "Label Recording" },
413 { 0x04, "SE Style" },
414 { 0x08, "Bandwidth protection" }, /* RFC4090 */
415 { 0x10, "Node protection" }, /* RFC4090 */
416 { 0, NULL}
417 };
418
419 static const struct tok rsvp_obj_prop_tlv_values[] = {
420 { 0x01, "Cos" },
421 { 0x02, "Metric 1" },
422 { 0x04, "Metric 2" },
423 { 0x08, "CCC Status" },
424 { 0x10, "Path Type" },
425 { 0, NULL}
426 };
427
428 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
429 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
430 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28
431 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125
432
433 static const struct tok rsvp_obj_error_code_values[] = {
434 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
435 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
436 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
437 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" },
438 { 0, NULL}
439 };
440
441 static const struct tok rsvp_obj_error_code_routing_values[] = {
442 { 1, "Bad EXPLICIT_ROUTE object" },
443 { 2, "Bad strict node" },
444 { 3, "Bad loose node" },
445 { 4, "Bad initial subobject" },
446 { 5, "No route available toward destination" },
447 { 6, "Unacceptable label value" },
448 { 7, "RRO indicated routing loops" },
449 { 8, "non-RSVP-capable router in the path" },
450 { 9, "MPLS label allocation failure" },
451 { 10, "Unsupported L3PID" },
452 { 0, NULL}
453 };
454
455 static const struct tok rsvp_obj_error_code_diffserv_te_values[] = {
456 { 1, "Unexpected CT object" },
457 { 2, "Unsupported CT" },
458 { 3, "Invalid CT value" },
459 { 4, "CT/setup priority do not form a configured TE-Class" },
460 { 5, "CT/holding priority do not form a configured TE-Class" },
461 { 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" },
462 { 7, "Inconsistency between signaled PSC and signaled CT" },
463 { 8, "Inconsistency between signaled PHBs and signaled CT" },
464 { 0, NULL}
465 };
466
467 /* rfc3473 / rfc 3471 */
468 static const struct tok rsvp_obj_admin_status_flag_values[] = {
469 { 0x80000000, "Reflect" },
470 { 0x00000004, "Testing" },
471 { 0x00000002, "Admin-down" },
472 { 0x00000001, "Delete-in-progress" },
473 { 0, NULL}
474 };
475
476 /* label set actions - rfc3471 */
477 #define LABEL_SET_INCLUSIVE_LIST 0
478 #define LABEL_SET_EXCLUSIVE_LIST 1
479 #define LABEL_SET_INCLUSIVE_RANGE 2
480 #define LABEL_SET_EXCLUSIVE_RANGE 3
481
482 static const struct tok rsvp_obj_label_set_action_values[] = {
483 { LABEL_SET_INCLUSIVE_LIST, "Inclusive list" },
484 { LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" },
485 { LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" },
486 { LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" },
487 { 0, NULL}
488 };
489
490 /* OIF RSVP extensions UNI 1.0 Signaling, release 2 */
491 #define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1
492 #define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2
493 #define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3
494 #define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4
495 #define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5
496
497 static const struct tok rsvp_obj_generalized_uni_values[] = {
498 { RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" },
499 { RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" },
500 { RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" },
501 { RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" },
502 { RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" },
503 { 0, NULL}
504 };
505
506 /*
507 * this is a dissector for all the intserv defined
508 * specs as defined per rfc2215
509 * it is called from various rsvp objects;
510 * returns the amount of bytes being processed
511 */
512 static u_int
513 rsvp_intserv_print(netdissect_options *ndo,
514 const u_char *tptr, u_int obj_tlen)
515 {
516 u_int parameter_id,parameter_length;
517 union {
518 float f;
519 uint32_t i;
520 } bw;
521
522 ND_ICHECK_U(obj_tlen, <, 4);
523 parameter_id = GET_U_1(tptr);
524 parameter_length = GET_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
525
526 ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
527 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
528 parameter_id,
529 parameter_length,
530 GET_U_1(tptr + 1));
531
532 ND_ICHECK_U(obj_tlen, <, parameter_length + 4);
533 switch(parameter_id) { /* parameter_id */
534
535 case 4:
536 /*
537 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
538 * | 4 (e) | (f) | 1 (g) |
539 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
540 * | IS hop cnt (32-bit unsigned integer) |
541 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
542 */
543 if (parameter_length == 4) {
544 ND_PRINT("\n\t\tIS hop count: %u", GET_BE_U_4(tptr + 4));
545 }
546 break;
547
548 case 6:
549 /*
550 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
551 * | 6 (h) | (i) | 1 (j) |
552 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
553 * | Path b/w estimate (32-bit IEEE floating point number) |
554 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
555 */
556 if (parameter_length == 4) {
557 bw.i = GET_BE_U_4(tptr + 4);
558 ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000);
559 }
560 break;
561
562 case 8:
563 /*
564 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
565 * | 8 (k) | (l) | 1 (m) |
566 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
567 * | Minimum path latency (32-bit integer) |
568 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
569 */
570 if (parameter_length == 4) {
571 ND_PRINT("\n\t\tMinimum path latency: ");
572 if (GET_BE_U_4(tptr + 4) == 0xffffffff)
573 ND_PRINT("don't care");
574 else
575 ND_PRINT("%u", GET_BE_U_4(tptr + 4));
576 }
577 break;
578
579 case 10:
580
581 /*
582 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
583 * | 10 (n) | (o) | 1 (p) |
584 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
585 * | Composed MTU (32-bit unsigned integer) |
586 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
587 */
588 if (parameter_length == 4) {
589 ND_PRINT("\n\t\tComposed MTU: %u bytes", GET_BE_U_4(tptr + 4));
590 }
591 break;
592 case 127:
593 /*
594 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
595 * | 127 (e) | 0 (f) | 5 (g) |
596 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
597 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
598 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
599 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
600 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
601 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
602 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
603 * | Minimum Policed Unit [m] (32-bit integer) |
604 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
605 * | Maximum Packet Size [M] (32-bit integer) |
606 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
607 */
608
609 if (parameter_length == 20) {
610 bw.i = GET_BE_U_4(tptr + 4);
611 ND_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000);
612 bw.i = GET_BE_U_4(tptr + 8);
613 ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
614 bw.i = GET_BE_U_4(tptr + 12);
615 ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000);
616 ND_PRINT("\n\t\tMinimum Policed Unit: %u bytes",
617 GET_BE_U_4(tptr + 16));
618 ND_PRINT("\n\t\tMaximum Packet Size: %u bytes",
619 GET_BE_U_4(tptr + 20));
620 }
621 break;
622
623 case 130:
624 /*
625 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
626 * | 130 (h) | 0 (i) | 2 (j) |
627 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
628 * | Rate [R] (32-bit IEEE floating point number) |
629 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
630 * | Slack Term [S] (32-bit integer) |
631 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
632 */
633
634 if (parameter_length == 8) {
635 bw.i = GET_BE_U_4(tptr + 4);
636 ND_PRINT("\n\t\tRate: %.10g Mbps", bw.f / 125000);
637 ND_PRINT("\n\t\tSlack Term: %u", GET_BE_U_4(tptr + 8));
638 }
639 break;
640
641 case 133:
642 case 134:
643 case 135:
644 case 136:
645 if (parameter_length == 4) {
646 ND_PRINT("\n\t\tValue: %u", GET_BE_U_4(tptr + 4));
647 }
648 break;
649
650 default:
651 if (ndo->ndo_vflag <= 1)
652 print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
653 }
654 return (parameter_length+4); /* header length 4 bytes */
655
656 invalid:
657 nd_print_invalid(ndo);
658 return 0;
659 }
660
661 /*
662 * Clear checksum prior to signature verification.
663 */
664 static void
665 rsvp_clear_checksum(void *header)
666 {
667 struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
668
669 rsvp_com_header->checksum[0] = 0;
670 rsvp_com_header->checksum[1] = 0;
671 }
672
673 static int
674 rsvp_obj_print(netdissect_options *ndo,
675 const u_char *pptr, u_int plen, const u_char *tptr,
676 const char *indent, u_int tlen,
677 const struct rsvp_common_header *rsvp_com_header)
678 {
679 const struct rsvp_object_header *rsvp_obj_header;
680 const u_char *obj_tptr;
681 union {
682 const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
683 const struct rsvp_obj_frr_t *rsvp_obj_frr;
684 } obj_ptr;
685
686 u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num;
687 u_int obj_tlen,intserv_serv_tlen;
688 int hexdump;
689 u_int processed,padbytes,error_code,error_value,i,sigcheck;
690 union {
691 float f;
692 uint32_t i;
693 } bw;
694 u_int namelen;
695
696 u_int action, subchannel;
697
698 while(tlen>=sizeof(struct rsvp_object_header)) {
699 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
700 rsvp_obj_len=GET_BE_U_2(rsvp_obj_header->length);
701 rsvp_obj_ctype=GET_U_1(rsvp_obj_header->ctype);
702
703 if(rsvp_obj_len % 4) {
704 ND_PRINT("%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len);
705 return -1;
706 }
707 if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
708 ND_PRINT("%sERROR: object header too short %u < %zu", indent, rsvp_obj_len,
709 sizeof(struct rsvp_object_header));
710 return -1;
711 }
712
713 rsvp_obj_class_num = GET_U_1(rsvp_obj_header->class_num);
714 ND_PRINT("%s%s Object (%u) Flags: [%s",
715 indent,
716 tok2str(rsvp_obj_values,
717 "Unknown",
718 rsvp_obj_class_num),
719 rsvp_obj_class_num,
720 (rsvp_obj_class_num & 0x80) ?
721 ((rsvp_obj_class_num & 0x40) ? "ignore and forward" :
722 "ignore silently") :
723 "reject");
724
725 ND_PRINT(" if unknown], Class-Type: %s (%u), length: %u",
726 tok2str(rsvp_ctype_values,
727 "Unknown",
728 (rsvp_obj_class_num<<8)+rsvp_obj_ctype),
729 rsvp_obj_ctype,
730 rsvp_obj_len);
731
732 if(tlen < rsvp_obj_len) {
733 ND_PRINT("%sERROR: object goes past end of objects TLV", indent);
734 return -1;
735 }
736
737 obj_tptr=tptr+sizeof(struct rsvp_object_header);
738 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
739
740 /* did we capture enough for fully decoding the object ? */
741 ND_TCHECK_LEN(tptr, rsvp_obj_len);
742 hexdump=FALSE;
743
744 switch(rsvp_obj_class_num) {
745 case RSVP_OBJ_SESSION:
746 switch(rsvp_obj_ctype) {
747 case RSVP_CTYPE_IPV4:
748 if (obj_tlen < 8)
749 goto obj_tooshort;
750 ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
751 indent,
752 GET_IPADDR_STRING(obj_tptr),
753 GET_U_1(obj_tptr + sizeof(nd_ipv4)));
754 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
755 indent,
756 GET_U_1((obj_tptr + 5)),
757 GET_BE_U_2(obj_tptr + 6));
758 obj_tlen-=8;
759 obj_tptr+=8;
760 break;
761 case RSVP_CTYPE_IPV6:
762 if (obj_tlen < 20)
763 goto obj_tooshort;
764 ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
765 indent,
766 GET_IP6ADDR_STRING(obj_tptr),
767 GET_U_1(obj_tptr + sizeof(nd_ipv6)));
768 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
769 indent,
770 GET_U_1((obj_tptr + sizeof(nd_ipv6) + 1)),
771 GET_BE_U_2(obj_tptr + sizeof(nd_ipv6) + 2));
772 obj_tlen-=20;
773 obj_tptr+=20;
774 break;
775
776 case RSVP_CTYPE_TUNNEL_IPV6:
777 if (obj_tlen < 36)
778 goto obj_tooshort;
779 ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
780 indent,
781 GET_IP6ADDR_STRING(obj_tptr),
782 GET_BE_U_2(obj_tptr + 18),
783 GET_IP6ADDR_STRING(obj_tptr + 20));
784 obj_tlen-=36;
785 obj_tptr+=36;
786 break;
787
788 case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
789 if (obj_tlen < 26)
790 goto obj_tooshort;
791 ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
792 indent,
793 GET_BE_U_4(obj_tptr),
794 GET_BE_U_2(obj_tptr + 6),
795 GET_IP6ADDR_STRING(obj_tptr + 8));
796 obj_tlen-=26;
797 obj_tptr+=26;
798 break;
799 case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
800 if (obj_tlen < 12)
801 goto obj_tooshort;
802 ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
803 indent,
804 GET_IPADDR_STRING(obj_tptr),
805 GET_BE_U_2(obj_tptr + 6),
806 GET_IPADDR_STRING(obj_tptr + 8));
807 obj_tlen-=12;
808 obj_tptr+=12;
809 break;
810 case RSVP_CTYPE_TUNNEL_IPV4:
811 case RSVP_CTYPE_UNI_IPV4:
812 if (obj_tlen < 12)
813 goto obj_tooshort;
814 ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
815 indent,
816 GET_IPADDR_STRING(obj_tptr),
817 GET_BE_U_2(obj_tptr + 6),
818 GET_IPADDR_STRING(obj_tptr + 8));
819 obj_tlen-=12;
820 obj_tptr+=12;
821 break;
822 default:
823 hexdump=TRUE;
824 }
825 break;
826
827 case RSVP_OBJ_CONFIRM:
828 switch(rsvp_obj_ctype) {
829 case RSVP_CTYPE_IPV4:
830 if (obj_tlen < sizeof(nd_ipv4))
831 goto obj_tooshort;
832 ND_PRINT("%s IPv4 Receiver Address: %s",
833 indent,
834 GET_IPADDR_STRING(obj_tptr));
835 obj_tlen-=sizeof(nd_ipv4);
836 obj_tptr+=sizeof(nd_ipv4);
837 break;
838 case RSVP_CTYPE_IPV6:
839 if (obj_tlen < sizeof(nd_ipv6))
840 goto obj_tooshort;
841 ND_PRINT("%s IPv6 Receiver Address: %s",
842 indent,
843 GET_IP6ADDR_STRING(obj_tptr));
844 obj_tlen-=sizeof(nd_ipv6);
845 obj_tptr+=sizeof(nd_ipv6);
846 break;
847 default:
848 hexdump=TRUE;
849 }
850 break;
851
852 case RSVP_OBJ_NOTIFY_REQ:
853 switch(rsvp_obj_ctype) {
854 case RSVP_CTYPE_IPV4:
855 if (obj_tlen < sizeof(nd_ipv4))
856 goto obj_tooshort;
857 ND_PRINT("%s IPv4 Notify Node Address: %s",
858 indent,
859 GET_IPADDR_STRING(obj_tptr));
860 obj_tlen-=sizeof(nd_ipv4);
861 obj_tptr+=sizeof(nd_ipv4);
862 break;
863 case RSVP_CTYPE_IPV6:
864 if (obj_tlen < sizeof(nd_ipv6))
865 goto obj_tooshort;
866 ND_PRINT("%s IPv6 Notify Node Address: %s",
867 indent,
868 GET_IP6ADDR_STRING(obj_tptr));
869 obj_tlen-=sizeof(nd_ipv6);
870 obj_tptr+=sizeof(nd_ipv6);
871 break;
872 default:
873 hexdump=TRUE;
874 }
875 break;
876
877 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
878 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
879 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
880 case RSVP_OBJ_LABEL:
881 switch(rsvp_obj_ctype) {
882 case RSVP_CTYPE_1:
883 while(obj_tlen >= 4 ) {
884 ND_PRINT("%s Label: %u", indent, GET_BE_U_4(obj_tptr));
885 obj_tlen-=4;
886 obj_tptr+=4;
887 }
888 break;
889 case RSVP_CTYPE_2:
890 if (obj_tlen < 4)
891 goto obj_tooshort;
892 ND_PRINT("%s Generalized Label: %u",
893 indent,
894 GET_BE_U_4(obj_tptr));
895 obj_tlen-=4;
896 obj_tptr+=4;
897 break;
898 case RSVP_CTYPE_3:
899 if (obj_tlen < 12)
900 goto obj_tooshort;
901 ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
902 indent,
903 GET_BE_U_4(obj_tptr),
904 indent,
905 GET_BE_U_4(obj_tptr + 4),
906 GET_BE_U_4(obj_tptr + 8));
907 obj_tlen-=12;
908 obj_tptr+=12;
909 break;
910 default:
911 hexdump=TRUE;
912 }
913 break;
914
915 case RSVP_OBJ_STYLE:
916 switch(rsvp_obj_ctype) {
917 case RSVP_CTYPE_1:
918 if (obj_tlen < 4)
919 goto obj_tooshort;
920 ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]",
921 indent,
922 tok2str(rsvp_resstyle_values,
923 "Unknown",
924 GET_BE_U_3(obj_tptr + 1)),
925 GET_U_1(obj_tptr));
926 obj_tlen-=4;
927 obj_tptr+=4;
928 break;
929 default:
930 hexdump=TRUE;
931 }
932 break;
933
934 case RSVP_OBJ_SENDER_TEMPLATE:
935 switch(rsvp_obj_ctype) {
936 case RSVP_CTYPE_IPV4:
937 if (obj_tlen < 8)
938 goto obj_tooshort;
939 ND_PRINT("%s Source Address: %s, Source Port: %u",
940 indent,
941 GET_IPADDR_STRING(obj_tptr),
942 GET_BE_U_2(obj_tptr + 6));
943 obj_tlen-=8;
944 obj_tptr+=8;
945 break;
946 case RSVP_CTYPE_IPV6:
947 if (obj_tlen < 20)
948 goto obj_tooshort;
949 ND_PRINT("%s Source Address: %s, Source Port: %u",
950 indent,
951 GET_IP6ADDR_STRING(obj_tptr),
952 GET_BE_U_2(obj_tptr + 18));
953 obj_tlen-=20;
954 obj_tptr+=20;
955 break;
956 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
957 if (obj_tlen < 40)
958 goto obj_tooshort;
959 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
960 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
961 indent,
962 GET_IP6ADDR_STRING(obj_tptr),
963 GET_BE_U_2(obj_tptr + 18),
964 indent,
965 GET_IP6ADDR_STRING(obj_tptr+20),
966 GET_BE_U_2(obj_tptr + 38));
967 obj_tlen-=40;
968 obj_tptr+=40;
969 break;
970 case RSVP_CTYPE_TUNNEL_IPV4:
971 if (obj_tlen < 8)
972 goto obj_tooshort;
973 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
974 indent,
975 GET_IPADDR_STRING(obj_tptr),
976 GET_BE_U_2(obj_tptr + 6));
977 obj_tlen-=8;
978 obj_tptr+=8;
979 break;
980 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
981 if (obj_tlen < 16)
982 goto obj_tooshort;
983 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
984 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
985 indent,
986 GET_IPADDR_STRING(obj_tptr),
987 GET_BE_U_2(obj_tptr + 6),
988 indent,
989 GET_IPADDR_STRING(obj_tptr+8),
990 GET_BE_U_2(obj_tptr + 12));
991 obj_tlen-=16;
992 obj_tptr+=16;
993 break;
994 default:
995 hexdump=TRUE;
996 }
997 break;
998
999 case RSVP_OBJ_LABEL_REQ:
1000 switch(rsvp_obj_ctype) {
1001 case RSVP_CTYPE_1:
1002 while(obj_tlen >= 4 ) {
1003 ND_PRINT("%s L3 Protocol ID: %s",
1004 indent,
1005 tok2str(ethertype_values,
1006 "Unknown Protocol (0x%04x)",
1007 GET_BE_U_2(obj_tptr + 2)));
1008 obj_tlen-=4;
1009 obj_tptr+=4;
1010 }
1011 break;
1012 case RSVP_CTYPE_2:
1013 if (obj_tlen < 12)
1014 goto obj_tooshort;
1015 ND_PRINT("%s L3 Protocol ID: %s",
1016 indent,
1017 tok2str(ethertype_values,
1018 "Unknown Protocol (0x%04x)",
1019 GET_BE_U_2(obj_tptr + 2)));
1020 ND_PRINT(",%s merge capability",
1021 ((GET_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" );
1022 ND_PRINT("%s Minimum VPI/VCI: %u/%u",
1023 indent,
1024 (GET_BE_U_2(obj_tptr + 4))&0xfff,
1025 (GET_BE_U_2(obj_tptr + 6)) & 0xfff);
1026 ND_PRINT("%s Maximum VPI/VCI: %u/%u",
1027 indent,
1028 (GET_BE_U_2(obj_tptr + 8))&0xfff,
1029 (GET_BE_U_2(obj_tptr + 10)) & 0xfff);
1030 obj_tlen-=12;
1031 obj_tptr+=12;
1032 break;
1033 case RSVP_CTYPE_3:
1034 if (obj_tlen < 12)
1035 goto obj_tooshort;
1036 ND_PRINT("%s L3 Protocol ID: %s",
1037 indent,
1038 tok2str(ethertype_values,
1039 "Unknown Protocol (0x%04x)",
1040 GET_BE_U_2(obj_tptr + 2)));
1041 ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1042 indent,
1043 (GET_BE_U_4(obj_tptr + 4))&0x7fffff,
1044 (GET_BE_U_4(obj_tptr + 8))&0x7fffff,
1045 (((GET_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
1046 (((GET_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : "");
1047 obj_tlen-=12;
1048 obj_tptr+=12;
1049 break;
1050 case RSVP_CTYPE_4:
1051 if (obj_tlen < 4)
1052 goto obj_tooshort;
1053 ND_PRINT("%s LSP Encoding Type: %s (%u)",
1054 indent,
1055 tok2str(gmpls_encoding_values,
1056 "Unknown",
1057 GET_U_1(obj_tptr)),
1058 GET_U_1(obj_tptr));
1059 ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
1060 indent,
1061 tok2str(gmpls_switch_cap_values,
1062 "Unknown",
1063 GET_U_1((obj_tptr + 1))),
1064 GET_U_1(obj_tptr + 1),
1065 tok2str(gmpls_payload_values,
1066 "Unknown",
1067 GET_BE_U_2(obj_tptr + 2)),
1068 GET_BE_U_2(obj_tptr + 2));
1069 obj_tlen-=4;
1070 obj_tptr+=4;
1071 break;
1072 default:
1073 hexdump=TRUE;
1074 }
1075 break;
1076
1077 case RSVP_OBJ_RRO:
1078 case RSVP_OBJ_ERO:
1079 switch(rsvp_obj_ctype) {
1080 case RSVP_CTYPE_IPV4:
1081 while(obj_tlen >= 4 ) {
1082 u_char length;
1083
1084 ND_TCHECK_4(obj_tptr);
1085 length = GET_U_1(obj_tptr + 1);
1086 ND_PRINT("%s Subobject Type: %s, length %u",
1087 indent,
1088 tok2str(rsvp_obj_xro_values,
1089 "Unknown %u",
1090 RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))),
1091 length);
1092 if (obj_tlen < length) {
1093 ND_PRINT("%s ERROR: ERO subobject length > object length", indent);
1094 break;
1095 }
1096
1097 if (length == 0) { /* prevent infinite loops */
1098 ND_PRINT("%s ERROR: zero length ERO subtype", indent);
1099 break;
1100 }
1101
1102 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))) {
1103 u_char prefix_length;
1104
1105 case RSVP_OBJ_XRO_IPV4:
1106 if (length != 8) {
1107 ND_PRINT(" ERROR: length != 8");
1108 goto invalid;
1109 }
1110 ND_TCHECK_8(obj_tptr);
1111 prefix_length = GET_U_1(obj_tptr + 6);
1112 if (prefix_length != 32) {
1113 ND_PRINT(" ERROR: Prefix length %u != 32",
1114 prefix_length);
1115 goto invalid;
1116 }
1117 ND_PRINT(", %s, %s/%u, Flags: [%s]",
1118 RSVP_OBJ_XRO_MASK_LOOSE(GET_U_1(obj_tptr)) ? "Loose" : "Strict",
1119 GET_IPADDR_STRING(obj_tptr+2),
1120 GET_U_1((obj_tptr + 6)),
1121 bittok2str(rsvp_obj_rro_flag_values,
1122 "none",
1123 GET_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */
1124 break;
1125 case RSVP_OBJ_XRO_LABEL:
1126 if (length != 8) {
1127 ND_PRINT(" ERROR: length != 8");
1128 goto invalid;
1129 }
1130 ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1131 bittok2str(rsvp_obj_rro_label_flag_values,
1132 "none",
1133 GET_U_1((obj_tptr + 2))),
1134 GET_U_1(obj_tptr + 2),
1135 tok2str(rsvp_ctype_values,
1136 "Unknown",
1137 GET_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
1138 GET_U_1((obj_tptr + 3)),
1139 GET_BE_U_4(obj_tptr + 4));
1140 }
1141 obj_tlen-=length;
1142 obj_tptr+=length;
1143 }
1144 break;
1145 default:
1146 hexdump=TRUE;
1147 }
1148 break;
1149
1150 case RSVP_OBJ_HELLO:
1151 switch(rsvp_obj_ctype) {
1152 case RSVP_CTYPE_1:
1153 case RSVP_CTYPE_2:
1154 if (obj_tlen < 8)
1155 goto obj_tooshort;
1156 ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1157 indent,
1158 GET_BE_U_4(obj_tptr),
1159 GET_BE_U_4(obj_tptr + 4));
1160 obj_tlen-=8;
1161 obj_tptr+=8;
1162 break;
1163 default:
1164 hexdump=TRUE;
1165 }
1166 break;
1167
1168 case RSVP_OBJ_RESTART_CAPABILITY:
1169 switch(rsvp_obj_ctype) {
1170 case RSVP_CTYPE_1:
1171 if (obj_tlen < 8)
1172 goto obj_tooshort;
1173 ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums",
1174 indent,
1175 GET_BE_U_4(obj_tptr),
1176 GET_BE_U_4(obj_tptr + 4));
1177 obj_tlen-=8;
1178 obj_tptr+=8;
1179 break;
1180 default:
1181 hexdump=TRUE;
1182 }
1183 break;
1184
1185 case RSVP_OBJ_CAPABILITY:
1186 switch(rsvp_obj_ctype) {
1187 case RSVP_CTYPE_1:
1188 if (obj_tlen < 4)
1189 goto obj_tooshort;
1190 uint32_t unused_and_flags = GET_BE_U_4(obj_tptr);
1191 if (unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK)
1192 ND_PRINT("%s [reserved=0x%08x must be zero]", indent,
1193 unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK);
1194 ND_PRINT("%s Flags: [%s]",
1195 indent,
1196 bittok2str(rsvp_obj_capability_flag_values,
1197 "none",
1198 (unused_and_flags & RSVP_OBJ_CAPABILITY_FLAGS_MASK)));
1199 obj_tlen-=4;
1200 obj_tptr+=4;
1201 break;
1202 default:
1203 hexdump=TRUE;
1204 }
1205 break;
1206
1207 case RSVP_OBJ_SESSION_ATTRIBUTE:
1208 switch(rsvp_obj_ctype) {
1209 case RSVP_CTYPE_TUNNEL_IPV4:
1210 if (obj_tlen < 4)
1211 goto obj_tooshort;
1212 namelen = GET_U_1(obj_tptr + 3);
1213 if (obj_tlen < 4+namelen)
1214 goto obj_tooshort;
1215 ND_PRINT("%s Session Name: ", indent);
1216 for (i = 0; i < namelen; i++)
1217 fn_print_char(ndo, GET_U_1(obj_tptr + 4 + i));
1218 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1219 indent,
1220 GET_U_1(obj_tptr),
1221 GET_U_1(obj_tptr + 1),
1222 bittok2str(rsvp_session_attribute_flag_values,
1223 "none",
1224 GET_U_1((obj_tptr + 2))),
1225 GET_U_1(obj_tptr + 2));
1226 obj_tlen-=4+namelen;
1227 obj_tptr+=4+namelen;
1228 break;
1229 default:
1230 hexdump=TRUE;
1231 }
1232 break;
1233
1234 case RSVP_OBJ_GENERALIZED_UNI:
1235 switch(rsvp_obj_ctype) {
1236 u_int subobj_type,af,subobj_len,total_subobj_len;
1237
1238 case RSVP_CTYPE_1:
1239
1240 if (obj_tlen < 4)
1241 goto obj_tooshort;
1242
1243 /* read variable length subobjects */
1244 total_subobj_len = obj_tlen;
1245 while(total_subobj_len > 0) {
1246 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1247 * GENERALIZED_UNI RSVP object must have the Length field as
1248 * a multiple of 4, instead of the check below it would be
1249 * better to test total_subobj_len only once before the loop.
1250 * So long as it does not define it and this while loop does
1251 * not implement such a requirement, let's accept that within
1252 * each iteration subobj_len may happen to be a multiple of 1
1253 * and test it and total_subobj_len respectively.
1254 */
1255 ND_ICHECK_U(total_subobj_len, <, 4);
1256 subobj_len = GET_BE_U_2(obj_tptr);
1257 subobj_type = (GET_BE_U_2(obj_tptr + 2))>>8;
1258 af = (GET_BE_U_2(obj_tptr + 2))&0x00FF;
1259
1260 ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1261 indent,
1262 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1263 subobj_type,
1264 tok2str(af_values, "Unknown", af), af,
1265 subobj_len);
1266
1267 /* In addition to what is explained above, the same spec does not
1268 * explicitly say that the same Length field includes the 4-octet
1269 * sub-object header, but as long as this while loop implements it
1270 * as it does include, let's keep the check below consistent with
1271 * the rest of the code.
1272 *
1273 * XXX - RFC 3476 Section 3.1 says "The contents of these
1274 * sub-objects are described in [8]", where [8] is
1275 * UNI 1.0 Signaling Specification, The Optical
1276 * Internetworking Forum. The URL they give for that
1277 * document is
1278 *
1279 * http://www.oiforum.com/public/UNI_1.0_ia.html
1280 *
1281 * but that doesn't work; the new URL appears to be
1282 *
1283 * https://web.archive.org/web/20160401194747/http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf
1284 *
1285 * and *that* document, in section 12.5.2.3
1286 * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))",
1287 * says nothing about the length field in general, but
1288 * some of the examples it gives in subsections have
1289 * length field values that clearly includes the length
1290 * of the sub-object header as well as the length of the
1291 * value.
1292 */
1293 if(subobj_len < 4 || subobj_len > total_subobj_len ||
1294 obj_tlen < subobj_len)
1295 goto invalid;
1296
1297 switch(subobj_type) {
1298 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1299 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1300
1301 switch(af) {
1302 case AFNUM_IP:
1303 if (subobj_len < 8)
1304 goto subobj_tooshort;
1305 ND_PRINT("%s UNI IPv4 TNA address: %s",
1306 indent, GET_IPADDR_STRING(obj_tptr + 4));
1307 break;
1308 case AFNUM_IP6:
1309 if (subobj_len < 20)
1310 goto subobj_tooshort;
1311 ND_PRINT("%s UNI IPv6 TNA address: %s",
1312 indent, GET_IP6ADDR_STRING(obj_tptr + 4));
1313 break;
1314 case AFNUM_NSAP:
1315 if (subobj_len) {
1316 /* unless we have a TLV parser lets just hexdump */
1317 hexdump=TRUE;
1318 }
1319 break;
1320 }
1321 break;
1322
1323 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1324 if (subobj_len > 4) {
1325 /* unless we have a TLV parser lets just hexdump */
1326 hexdump=TRUE;
1327 }
1328 break;
1329
1330 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1331 if (subobj_len < 16) {
1332 goto subobj_tooshort;
1333 }
1334
1335 ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1336 indent,
1337 ((GET_BE_U_4(obj_tptr + 4))>>31),
1338 ((GET_BE_U_4(obj_tptr + 4))&0xFF),
1339 GET_BE_U_4(obj_tptr + 8),
1340 GET_BE_U_4(obj_tptr + 12));
1341 break;
1342
1343 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1344 if (subobj_len < 8) {
1345 goto subobj_tooshort;
1346 }
1347
1348 ND_PRINT("%s Service level: %u",
1349 indent, (GET_BE_U_4(obj_tptr + 4)) >> 24);
1350 break;
1351
1352 default:
1353 hexdump=TRUE;
1354 break;
1355 }
1356 total_subobj_len-=subobj_len;
1357 obj_tptr+=subobj_len;
1358 obj_tlen+=subobj_len;
1359 }
1360 break;
1361
1362 default:
1363 hexdump=TRUE;
1364 }
1365 break;
1366
1367 case RSVP_OBJ_RSVP_HOP:
1368 switch(rsvp_obj_ctype) {
1369 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1370 case RSVP_CTYPE_IPV4:
1371 if (obj_tlen < 8)
1372 goto obj_tooshort;
1373 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1374 indent,
1375 GET_IPADDR_STRING(obj_tptr),
1376 GET_BE_U_4(obj_tptr + 4));
1377 obj_tlen-=8;
1378 obj_tptr+=8;
1379 if (obj_tlen)
1380 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1381 break;
1382 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1383 case RSVP_CTYPE_IPV6:
1384 if (obj_tlen < 20)
1385 goto obj_tooshort;
1386 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1387 indent,
1388 GET_IP6ADDR_STRING(obj_tptr),
1389 GET_BE_U_4(obj_tptr + 16));
1390 obj_tlen-=20;
1391 obj_tptr+=20;
1392 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1393 break;
1394 default:
1395 hexdump=TRUE;
1396 }
1397 break;
1398
1399 case RSVP_OBJ_TIME_VALUES:
1400 switch(rsvp_obj_ctype) {
1401 case RSVP_CTYPE_1:
1402 if (obj_tlen < 4)
1403 goto obj_tooshort;
1404 ND_PRINT("%s Refresh Period: %ums",
1405 indent,
1406 GET_BE_U_4(obj_tptr));
1407 obj_tlen-=4;
1408 obj_tptr+=4;
1409 break;
1410 default:
1411 hexdump=TRUE;
1412 }
1413 break;
1414
1415 /* those three objects do share the same semantics */
1416 case RSVP_OBJ_SENDER_TSPEC:
1417 case RSVP_OBJ_ADSPEC:
1418 case RSVP_OBJ_FLOWSPEC:
1419 switch(rsvp_obj_ctype) {
1420 case RSVP_CTYPE_2:
1421 if (obj_tlen < 4)
1422 goto obj_tooshort;
1423 ND_PRINT("%s Msg-Version: %u, length: %u",
1424 indent,
1425 (GET_U_1(obj_tptr) & 0xf0) >> 4,
1426 GET_BE_U_2(obj_tptr + 2) << 2);
1427 obj_tptr+=4; /* get to the start of the service header */
1428 obj_tlen-=4;
1429
1430 while (obj_tlen >= 4) {
1431 intserv_serv_tlen=GET_BE_U_2(obj_tptr + 2)<<2;
1432 ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u",
1433 indent,
1434 tok2str(rsvp_intserv_service_type_values,"unknown",GET_U_1((obj_tptr))),
1435 GET_U_1(obj_tptr),
1436 (GET_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
1437 intserv_serv_tlen);
1438
1439 obj_tptr+=4; /* get to the start of the parameter list */
1440 obj_tlen-=4;
1441
1442 while (intserv_serv_tlen>=4) {
1443 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1444 if (processed == 0)
1445 break;
1446 obj_tlen-=processed;
1447 intserv_serv_tlen-=processed;
1448 obj_tptr+=processed;
1449 }
1450 }
1451 break;
1452 default:
1453 hexdump=TRUE;
1454 }
1455 break;
1456
1457 case RSVP_OBJ_FILTERSPEC:
1458 switch(rsvp_obj_ctype) {
1459 case RSVP_CTYPE_IPV4:
1460 if (obj_tlen < 8)
1461 goto obj_tooshort;
1462 ND_PRINT("%s Source Address: %s, Source Port: %u",
1463 indent,
1464 GET_IPADDR_STRING(obj_tptr),
1465 GET_BE_U_2(obj_tptr + 6));
1466 obj_tlen-=8;
1467 obj_tptr+=8;
1468 break;
1469 case RSVP_CTYPE_IPV6:
1470 if (obj_tlen < 20)
1471 goto obj_tooshort;
1472 ND_PRINT("%s Source Address: %s, Source Port: %u",
1473 indent,
1474 GET_IP6ADDR_STRING(obj_tptr),
1475 GET_BE_U_2(obj_tptr + 18));
1476 obj_tlen-=20;
1477 obj_tptr+=20;
1478 break;
1479 case RSVP_CTYPE_3:
1480 if (obj_tlen < 20)
1481 goto obj_tooshort;
1482 ND_PRINT("%s Source Address: %s, Flow Label: %u",
1483 indent,
1484 GET_IP6ADDR_STRING(obj_tptr),
1485 GET_BE_U_3(obj_tptr + 17));
1486 obj_tlen-=20;
1487 obj_tptr+=20;
1488 break;
1489 case RSVP_CTYPE_TUNNEL_IPV6:
1490 if (obj_tlen < 20)
1491 goto obj_tooshort;
1492 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1493 indent,
1494 GET_IPADDR_STRING(obj_tptr),
1495 GET_BE_U_2(obj_tptr + 18));
1496 obj_tlen-=20;
1497 obj_tptr+=20;
1498 break;
1499 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1500 if (obj_tlen < 40)
1501 goto obj_tooshort;
1502 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1503 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1504 indent,
1505 GET_IP6ADDR_STRING(obj_tptr),
1506 GET_BE_U_2(obj_tptr + 18),
1507 indent,
1508 GET_IP6ADDR_STRING(obj_tptr+20),
1509 GET_BE_U_2(obj_tptr + 38));
1510 obj_tlen-=40;
1511 obj_tptr+=40;
1512 break;
1513 case RSVP_CTYPE_TUNNEL_IPV4:
1514 if (obj_tlen < 8)
1515 goto obj_tooshort;
1516 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1517 indent,
1518 GET_IPADDR_STRING(obj_tptr),
1519 GET_BE_U_2(obj_tptr + 6));
1520 obj_tlen-=8;
1521 obj_tptr+=8;
1522 break;
1523 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1524 if (obj_tlen < 16)
1525 goto obj_tooshort;
1526 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1527 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1528 indent,
1529 GET_IPADDR_STRING(obj_tptr),
1530 GET_BE_U_2(obj_tptr + 6),
1531 indent,
1532 GET_IPADDR_STRING(obj_tptr+8),
1533 GET_BE_U_2(obj_tptr + 12));
1534 obj_tlen-=16;
1535 obj_tptr+=16;
1536 break;
1537 default:
1538 hexdump=TRUE;
1539 }
1540 break;
1541
1542 case RSVP_OBJ_FASTREROUTE:
1543 /* the differences between c-type 1 and 7 are minor */
1544 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1545
1546 switch(rsvp_obj_ctype) {
1547 case RSVP_CTYPE_1: /* new style */
1548 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1549 goto obj_tooshort;
1550 bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1551 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1552 indent,
1553 obj_ptr.rsvp_obj_frr->setup_prio,
1554 obj_ptr.rsvp_obj_frr->hold_prio,
1555 obj_ptr.rsvp_obj_frr->hop_limit,
1556 bw.f * 8 / 1000000);
1557 ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1558 indent,
1559 GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1560 GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
1561 GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_all));
1562 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1563 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1564 break;
1565
1566 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1567 if (obj_tlen < 16)
1568 goto obj_tooshort;
1569 bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1570 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1571 indent,
1572 obj_ptr.rsvp_obj_frr->setup_prio,
1573 obj_ptr.rsvp_obj_frr->hold_prio,
1574 obj_ptr.rsvp_obj_frr->hop_limit,
1575 bw.f * 8 / 1000000);
1576 ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1577 indent,
1578 GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1579 GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any));
1580 obj_tlen-=16;
1581 obj_tptr+=16;
1582 break;
1583
1584 default:
1585 hexdump=TRUE;
1586 }
1587 break;
1588
1589 case RSVP_OBJ_DETOUR:
1590 switch(rsvp_obj_ctype) {
1591 case RSVP_CTYPE_TUNNEL_IPV4:
1592 while(obj_tlen >= 8) {
1593 ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s",
1594 indent,
1595 GET_IPADDR_STRING(obj_tptr),
1596 GET_IPADDR_STRING(obj_tptr + 4));
1597 obj_tlen-=8;
1598 obj_tptr+=8;
1599 }
1600 break;
1601 default:
1602 hexdump=TRUE;
1603 }
1604 break;
1605
1606 case RSVP_OBJ_CLASSTYPE:
1607 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1608 switch(rsvp_obj_ctype) {
1609 case RSVP_CTYPE_1:
1610 if (obj_tlen < 4)
1611 goto obj_tooshort;
1612 ND_PRINT("%s CT: %u",
1613 indent,
1614 GET_BE_U_4(obj_tptr) & 0x7);
1615 obj_tlen-=4;
1616 obj_tptr+=4;
1617 break;
1618 default:
1619 hexdump=TRUE;
1620 }
1621 break;
1622
1623 case RSVP_OBJ_ERROR_SPEC:
1624 switch(rsvp_obj_ctype) {
1625 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1626 case RSVP_CTYPE_IPV4:
1627 if (obj_tlen < 8)
1628 goto obj_tooshort;
1629 error_code=GET_U_1(obj_tptr + 5);
1630 error_value=GET_BE_U_2(obj_tptr + 6);
1631 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1632 indent,
1633 GET_IPADDR_STRING(obj_tptr),
1634 GET_U_1(obj_tptr + 4),
1635 indent,
1636 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1637 error_code);
1638 switch (error_code) {
1639 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1640 ND_PRINT(", Error Value: %s (%u)",
1641 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1642 error_value);
1643 break;
1644 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1645 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1646 ND_PRINT(", Error Value: %s (%u)",
1647 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1648 error_value);
1649 break;
1650 default:
1651 ND_PRINT(", Unknown Error Value (%u)", error_value);
1652 break;
1653 }
1654 obj_tlen-=8;
1655 obj_tptr+=8;
1656 break;
1657 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1658 case RSVP_CTYPE_IPV6:
1659 if (obj_tlen < 20)
1660 goto obj_tooshort;
1661 error_code=GET_U_1(obj_tptr + 17);
1662 error_value=GET_BE_U_2(obj_tptr + 18);
1663 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1664 indent,
1665 GET_IP6ADDR_STRING(obj_tptr),
1666 GET_U_1(obj_tptr + 16),
1667 indent,
1668 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1669 error_code);
1670
1671 switch (error_code) {
1672 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1673 ND_PRINT(", Error Value: %s (%u)",
1674 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1675 error_value);
1676 break;
1677 default:
1678 break;
1679 }
1680 obj_tlen-=20;
1681 obj_tptr+=20;
1682 break;
1683 default:
1684 hexdump=TRUE;
1685 }
1686 break;
1687
1688 case RSVP_OBJ_PROPERTIES:
1689 switch(rsvp_obj_ctype) {
1690 case RSVP_CTYPE_1:
1691 if (obj_tlen < 4)
1692 goto obj_tooshort;
1693 padbytes = GET_BE_U_2(obj_tptr + 2);
1694 ND_PRINT("%s TLV count: %u, padding bytes: %u",
1695 indent,
1696 GET_BE_U_2(obj_tptr),
1697 padbytes);
1698 obj_tlen-=4;
1699 obj_tptr+=4;
1700 /* loop through as long there is anything longer than the TLV header (2) */
1701 while(obj_tlen >= 2 + padbytes) {
1702 ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */
1703 indent,
1704 tok2str(rsvp_obj_prop_tlv_values,"unknown",GET_U_1(obj_tptr)),
1705 GET_U_1(obj_tptr),
1706 GET_U_1(obj_tptr + 1));
1707 if (obj_tlen < GET_U_1(obj_tptr + 1))
1708 goto obj_tooshort;
1709 if (GET_U_1(obj_tptr + 1) < 2) {
1710 ND_PRINT("%sERROR: property TLV is too short", indent);
1711 return -1;
1712 }
1713 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
1714 GET_U_1(obj_tptr + 1) - 2);
1715 obj_tlen-=GET_U_1(obj_tptr + 1);
1716 obj_tptr+=GET_U_1(obj_tptr + 1);
1717 }
1718 break;
1719 default:
1720 hexdump=TRUE;
1721 }
1722 break;
1723
1724 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1725 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1726 case RSVP_OBJ_MESSAGE_ID_LIST:
1727 switch(rsvp_obj_ctype) {
1728 case RSVP_CTYPE_1:
1729 case RSVP_CTYPE_2:
1730 if (obj_tlen < 4)
1731 goto obj_tooshort;
1732 ND_PRINT("%s Flags [0x%02x], epoch: %u",
1733 indent,
1734 GET_U_1(obj_tptr),
1735 GET_BE_U_3(obj_tptr + 1));
1736 obj_tlen-=4;
1737 obj_tptr+=4;
1738 /* loop through as long there are no messages left */
1739 while(obj_tlen >= 4) {
1740 ND_PRINT("%s Message-ID 0x%08x (%u)",
1741 indent,
1742 GET_BE_U_4(obj_tptr),
1743 GET_BE_U_4(obj_tptr));
1744 obj_tlen-=4;
1745 obj_tptr+=4;
1746 }
1747 break;
1748 default:
1749 hexdump=TRUE;
1750 }
1751 break;
1752
1753 case RSVP_OBJ_INTEGRITY:
1754 switch(rsvp_obj_ctype) {
1755 case RSVP_CTYPE_1:
1756 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1757 goto obj_tooshort;
1758 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1759 ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1760 indent,
1761 GET_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
1762 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
1763 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
1764 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
1765 bittok2str(rsvp_obj_integrity_flag_values,
1766 "none",
1767 obj_ptr.rsvp_obj_integrity->flags));
1768 ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ",
1769 indent,
1770 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
1771 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
1772 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
1773 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12));
1774
1775 sigcheck = signature_verify(ndo, pptr, plen,
1776 obj_ptr.rsvp_obj_integrity->digest,
1777 rsvp_clear_checksum,
1778 rsvp_com_header);
1779 ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
1780
1781 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1782 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1783 break;
1784 default:
1785 hexdump=TRUE;
1786 }
1787 break;
1788
1789 case RSVP_OBJ_ADMIN_STATUS:
1790 switch(rsvp_obj_ctype) {
1791 case RSVP_CTYPE_1:
1792 if (obj_tlen < 4)
1793 goto obj_tooshort;
1794 ND_PRINT("%s Flags [%s]", indent,
1795 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1796 GET_BE_U_4(obj_tptr)));
1797 obj_tlen-=4;
1798 obj_tptr+=4;
1799 break;
1800 default:
1801 hexdump=TRUE;
1802 }
1803 break;
1804
1805 case RSVP_OBJ_LABEL_SET:
1806 switch(rsvp_obj_ctype) {
1807 case RSVP_CTYPE_1:
1808 if (obj_tlen < 4)
1809 goto obj_tooshort;
1810 action = (GET_BE_U_2(obj_tptr)>>8);
1811
1812 ND_PRINT("%s Action: %s (%u), Label type: %u", indent,
1813 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1814 action, (GET_BE_U_4(obj_tptr) & 0x7F));
1815
1816 switch (action) {
1817 case LABEL_SET_INCLUSIVE_RANGE:
1818 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1819
1820 /* only a couple of subchannels are expected */
1821 if (obj_tlen < 12)
1822 goto obj_tooshort;
1823 ND_PRINT("%s Start range: %u, End range: %u", indent,
1824 GET_BE_U_4(obj_tptr + 4),
1825 GET_BE_U_4(obj_tptr + 8));
1826 obj_tlen-=12;
1827 obj_tptr+=12;
1828 break;
1829
1830 default:
1831 obj_tlen-=4;
1832 obj_tptr+=4;
1833 subchannel = 1;
1834 while(obj_tlen >= 4 ) {
1835 ND_PRINT("%s Subchannel #%u: %u", indent, subchannel,
1836 GET_BE_U_4(obj_tptr));
1837 obj_tptr+=4;
1838 obj_tlen-=4;
1839 subchannel++;
1840 }
1841 break;
1842 }
1843 break;
1844 default:
1845 hexdump=TRUE;
1846 }
1847 break;
1848
1849 case RSVP_OBJ_S2L:
1850 switch (rsvp_obj_ctype) {
1851 case RSVP_CTYPE_IPV4:
1852 if (obj_tlen < 4)
1853 goto obj_tooshort;
1854 ND_PRINT("%s Sub-LSP destination address: %s",
1855 indent, GET_IPADDR_STRING(obj_tptr));
1856
1857 obj_tlen-=4;
1858 obj_tptr+=4;
1859 break;
1860 case RSVP_CTYPE_IPV6:
1861 if (obj_tlen < 16)
1862 goto obj_tooshort;
1863 ND_PRINT("%s Sub-LSP destination address: %s",
1864 indent, GET_IP6ADDR_STRING(obj_tptr));
1865
1866 obj_tlen-=16;
1867 obj_tptr+=16;
1868 break;
1869 default:
1870 hexdump=TRUE;
1871 }
1872 break;
1873
1874 /*
1875 * FIXME those are the defined objects that lack a decoder
1876 * you are welcome to contribute code ;-)
1877 */
1878
1879 case RSVP_OBJ_SCOPE:
1880 case RSVP_OBJ_POLICY_DATA:
1881 case RSVP_OBJ_ACCEPT_LABEL_SET:
1882 case RSVP_OBJ_PROTECTION:
1883 default:
1884 if (ndo->ndo_vflag <= 1)
1885 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1886 break;
1887 }
1888 /* do we also want to see a hex dump ? */
1889 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1890 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1891 rsvp_obj_len - sizeof(struct rsvp_object_header));
1892
1893 tptr+=rsvp_obj_len;
1894 tlen-=rsvp_obj_len;
1895 }
1896 return 0;
1897 subobj_tooshort:
1898 ND_PRINT("%sERROR: sub-object is too short", indent);
1899 return -1;
1900 obj_tooshort:
1901 ND_PRINT("%sERROR: object is too short", indent);
1902 return -1;
1903 invalid:
1904 nd_print_invalid(ndo);
1905 return -1;
1906 }
1907
1908 void
1909 rsvp_print(netdissect_options *ndo,
1910 const u_char *pptr, u_int len)
1911 {
1912 const struct rsvp_common_header *rsvp_com_header;
1913 uint8_t version_flags, msg_type;
1914 const u_char *tptr;
1915 u_short plen, tlen;
1916
1917 ndo->ndo_protocol = "rsvp";
1918 tptr=pptr;
1919
1920 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1921 ND_TCHECK_SIZE(rsvp_com_header);
1922 version_flags = GET_U_1(rsvp_com_header->version_flags);
1923
1924 /*
1925 * Sanity checking of the header.
1926 */
1927 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1928 ND_PRINT("ERROR: RSVP version %u packet not supported",
1929 RSVP_EXTRACT_VERSION(version_flags));
1930 return;
1931 }
1932
1933 msg_type = GET_U_1(rsvp_com_header->msg_type);
1934
1935 /* in non-verbose mode just lets print the basic Message Type*/
1936 if (ndo->ndo_vflag < 1) {
1937 ND_PRINT("RSVPv%u %s Message, length: %u",
1938 RSVP_EXTRACT_VERSION(version_flags),
1939 tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type),
1940 len);
1941 return;
1942 }
1943
1944 /* ok they seem to want to know everything - lets fully decode it */
1945
1946 plen = tlen = GET_BE_U_2(rsvp_com_header->length);
1947
1948 ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1949 RSVP_EXTRACT_VERSION(version_flags),
1950 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1951 msg_type,
1952 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1953 tlen,
1954 GET_U_1(rsvp_com_header->ttl),
1955 GET_BE_U_2(rsvp_com_header->checksum));
1956
1957 if (tlen < sizeof(struct rsvp_common_header)) {
1958 ND_PRINT("ERROR: common header too short %u < %zu", tlen,
1959 sizeof(struct rsvp_common_header));
1960 return;
1961 }
1962
1963 tptr+=sizeof(struct rsvp_common_header);
1964 tlen-=sizeof(struct rsvp_common_header);
1965
1966 switch(msg_type) {
1967
1968 case RSVP_MSGTYPE_BUNDLE:
1969 /*
1970 * Process each submessage in the bundle message.
1971 * Bundle messages may not contain bundle submessages, so we don't
1972 * need to handle bundle submessages specially.
1973 */
1974 while(tlen > 0) {
1975 const u_char *subpptr=tptr, *subtptr;
1976 u_short subplen, subtlen;
1977
1978 subtptr=subpptr;
1979
1980 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1981 ND_TCHECK_SIZE(rsvp_com_header);
1982 version_flags = GET_U_1(rsvp_com_header->version_flags);
1983
1984 /*
1985 * Sanity checking of the header.
1986 */
1987 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1988 ND_PRINT("ERROR: RSVP version %u packet not supported",
1989 RSVP_EXTRACT_VERSION(version_flags));
1990 return;
1991 }
1992
1993 subplen = subtlen = GET_BE_U_2(rsvp_com_header->length);
1994
1995 msg_type = GET_U_1(rsvp_com_header->msg_type);
1996 ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1997 RSVP_EXTRACT_VERSION(version_flags),
1998 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1999 msg_type,
2000 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
2001 subtlen,
2002 GET_U_1(rsvp_com_header->ttl),
2003 GET_BE_U_2(rsvp_com_header->checksum));
2004
2005 if (subtlen < sizeof(struct rsvp_common_header)) {
2006 ND_PRINT("ERROR: common header too short %u < %zu", subtlen,
2007 sizeof(struct rsvp_common_header));
2008 return;
2009 }
2010
2011 if (tlen < subtlen) {
2012 ND_PRINT("ERROR: common header too large %u > %u", subtlen,
2013 tlen);
2014 return;
2015 }
2016
2017 subtptr+=sizeof(struct rsvp_common_header);
2018 subtlen-=sizeof(struct rsvp_common_header);
2019
2020 /*
2021 * Print all objects in the submessage.
2022 */
2023 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
2024 return;
2025
2026 tptr+=subtlen+sizeof(struct rsvp_common_header);
2027 tlen-=subtlen+sizeof(struct rsvp_common_header);
2028 }
2029
2030 break;
2031
2032 case RSVP_MSGTYPE_PATH:
2033 case RSVP_MSGTYPE_RESV:
2034 case RSVP_MSGTYPE_PATHERR:
2035 case RSVP_MSGTYPE_RESVERR:
2036 case RSVP_MSGTYPE_PATHTEAR:
2037 case RSVP_MSGTYPE_RESVTEAR:
2038 case RSVP_MSGTYPE_RESVCONF:
2039 case RSVP_MSGTYPE_HELLO_OLD:
2040 case RSVP_MSGTYPE_HELLO:
2041 case RSVP_MSGTYPE_ACK:
2042 case RSVP_MSGTYPE_SREFRESH:
2043 /*
2044 * Print all objects in the message.
2045 */
2046 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
2047 return;
2048 break;
2049
2050 default:
2051 print_unknown_data(ndo, tptr, "\n\t ", tlen);
2052 break;
2053 }
2054 }
[mirror] the TCPdump network dissector