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[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 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include <netdissect-stdinc.h>
25
26 #include "netdissect.h"
27 #include "extract.h"
28 #include "addrtoname.h"
29 #include "ethertype.h"
30 #include "gmpls.h"
31 #include "af.h"
32 #include "signature.h"
33
34 static const char tstr[] = " [|rsvp]";
35
36 /*
37 * RFC 2205 common header
38 *
39 * 0 1 2 3
40 * +-------------+-------------+-------------+-------------+
41 * | Vers | Flags| Msg Type | RSVP Checksum |
42 * +-------------+-------------+-------------+-------------+
43 * | Send_TTL | (Reserved) | RSVP Length |
44 * +-------------+-------------+-------------+-------------+
45 *
46 */
47
48 struct rsvp_common_header {
49 uint8_t version_flags;
50 uint8_t msg_type;
51 uint8_t checksum[2];
52 uint8_t ttl;
53 uint8_t reserved;
54 uint8_t length[2];
55 };
56
57 /*
58 * RFC2205 object header
59 *
60 *
61 * 0 1 2 3
62 * +-------------+-------------+-------------+-------------+
63 * | Length (bytes) | Class-Num | C-Type |
64 * +-------------+-------------+-------------+-------------+
65 * | |
66 * // (Object contents) //
67 * | |
68 * +-------------+-------------+-------------+-------------+
69 */
70
71 struct rsvp_object_header {
72 uint8_t length[2];
73 uint8_t class_num;
74 uint8_t ctype;
75 };
76
77 #define RSVP_VERSION 1
78 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
79 #define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f)
80
81 #define RSVP_MSGTYPE_PATH 1
82 #define RSVP_MSGTYPE_RESV 2
83 #define RSVP_MSGTYPE_PATHERR 3
84 #define RSVP_MSGTYPE_RESVERR 4
85 #define RSVP_MSGTYPE_PATHTEAR 5
86 #define RSVP_MSGTYPE_RESVTEAR 6
87 #define RSVP_MSGTYPE_RESVCONF 7
88 #define RSVP_MSGTYPE_BUNDLE 12
89 #define RSVP_MSGTYPE_ACK 13
90 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
91 #define RSVP_MSGTYPE_SREFRESH 15
92 #define RSVP_MSGTYPE_HELLO 20
93
94 static const struct tok rsvp_msg_type_values[] = {
95 { RSVP_MSGTYPE_PATH, "Path" },
96 { RSVP_MSGTYPE_RESV, "Resv" },
97 { RSVP_MSGTYPE_PATHERR, "PathErr" },
98 { RSVP_MSGTYPE_RESVERR, "ResvErr" },
99 { RSVP_MSGTYPE_PATHTEAR, "PathTear" },
100 { RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
101 { RSVP_MSGTYPE_RESVCONF, "ResvConf" },
102 { RSVP_MSGTYPE_BUNDLE, "Bundle" },
103 { RSVP_MSGTYPE_ACK, "Acknowledgement" },
104 { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
105 { RSVP_MSGTYPE_SREFRESH, "Refresh" },
106 { RSVP_MSGTYPE_HELLO, "Hello" },
107 { 0, NULL}
108 };
109
110 static const struct tok rsvp_header_flag_values[] = {
111 { 0x01, "Refresh reduction capable" }, /* rfc2961 */
112 { 0, NULL}
113 };
114
115 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
116 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
117 #define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
118 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
119 #define RSVP_OBJ_ERROR_SPEC 6
120 #define RSVP_OBJ_SCOPE 7
121 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
122 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
123 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
124 #define RSVP_OBJ_SENDER_TEMPLATE 11
125 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
126 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
127 #define RSVP_OBJ_POLICY_DATA 14
128 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
129 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
130 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
131 #define RSVP_OBJ_ERO 20 /* rfc3209 */
132 #define RSVP_OBJ_RRO 21 /* rfc3209 */
133 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
134 #define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */
135 #define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */
136 #define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */
137 #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
138 #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
139 #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
140 #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
141 #define RSVP_OBJ_S2L 50 /* rfc4875 */
142 #define RSVP_OBJ_DETOUR 63 /* rfc4090 */
143 #define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
144 #define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
145 #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
146 #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
147 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
148 #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
149 #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
150 #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
151 #define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */
152 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
153 #define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
154 #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
155 #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
156
157 static const struct tok rsvp_obj_values[] = {
158 { RSVP_OBJ_SESSION, "Session" },
159 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
160 { RSVP_OBJ_INTEGRITY, "Integrity" },
161 { RSVP_OBJ_TIME_VALUES, "Time Values" },
162 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
163 { RSVP_OBJ_SCOPE, "Scope" },
164 { RSVP_OBJ_STYLE, "Style" },
165 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
166 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
167 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
168 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
169 { RSVP_OBJ_ADSPEC, "Adspec" },
170 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
171 { RSVP_OBJ_CONFIRM, "Confirm" },
172 { RSVP_OBJ_LABEL, "Label" },
173 { RSVP_OBJ_LABEL_REQ, "Label Request" },
174 { RSVP_OBJ_ERO, "ERO" },
175 { RSVP_OBJ_RRO, "RRO" },
176 { RSVP_OBJ_HELLO, "Hello" },
177 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
178 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
179 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
180 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
181 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
182 { RSVP_OBJ_LABEL_SET, "Label Set" },
183 { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
184 { RSVP_OBJ_DETOUR, "Detour" },
185 { RSVP_OBJ_CLASSTYPE, "Class Type" },
186 { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" },
187 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
188 { RSVP_OBJ_PROPERTIES, "Properties" },
189 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
190 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
191 { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" },
192 { RSVP_OBJ_CALL_ID, "Call-ID" },
193 { RSVP_OBJ_CALL_OPS, "Call Capability" },
194 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
195 { RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
196 { RSVP_OBJ_PROTECTION, "Protection" },
197 { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
198 { RSVP_OBJ_S2L, "Sub-LSP to LSP" },
199 { 0, NULL}
200 };
201
202 #define RSVP_CTYPE_IPV4 1
203 #define RSVP_CTYPE_IPV6 2
204 #define RSVP_CTYPE_TUNNEL_IPV4 7
205 #define RSVP_CTYPE_TUNNEL_IPV6 8
206 #define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */
207 #define RSVP_CTYPE_1 1
208 #define RSVP_CTYPE_2 2
209 #define RSVP_CTYPE_3 3
210 #define RSVP_CTYPE_4 4
211 #define RSVP_CTYPE_12 12
212 #define RSVP_CTYPE_13 13
213 #define RSVP_CTYPE_14 14
214
215 /*
216 * the ctypes are not globally unique so for
217 * translating it to strings we build a table based
218 * on objects offsetted by the ctype
219 */
220
221 static const struct tok rsvp_ctype_values[] = {
222 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
223 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
224 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
225 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
226 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
227 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
228 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
229 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
230 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
231 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
232 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
233 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
234 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
235 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
236 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
237 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
238 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
239 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
240 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
241 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
242 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
243 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
244 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" },
245 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" },
246 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" },
247 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
248 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
249 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
250 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
251 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
252 { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
253 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" },
254 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" },
255 { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
256 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
257 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
258 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
259 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
260 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
261 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
262 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
263 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
264 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
265 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
266 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
267 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
268 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
269 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
270 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
271 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
272 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
273 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
274 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
275 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
276 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
277 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
278 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
279 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
280 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
281 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
282 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
283 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
284 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
285 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
286 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
287 { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" },
288 { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
289 { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" },
290 { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" },
291 { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" },
292 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" },
293 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" },
294 { 0, NULL}
295 };
296
297 struct rsvp_obj_integrity_t {
298 uint8_t flags;
299 uint8_t res;
300 uint8_t key_id[6];
301 uint8_t sequence[8];
302 uint8_t digest[16];
303 };
304
305 static const struct tok rsvp_obj_integrity_flag_values[] = {
306 { 0x80, "Handshake" },
307 { 0, NULL}
308 };
309
310 struct rsvp_obj_frr_t {
311 uint8_t setup_prio;
312 uint8_t hold_prio;
313 uint8_t hop_limit;
314 uint8_t flags;
315 uint8_t bandwidth[4];
316 uint8_t include_any[4];
317 uint8_t exclude_any[4];
318 uint8_t include_all[4];
319 };
320
321
322 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
323 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
324
325 #define RSVP_OBJ_XRO_RES 0
326 #define RSVP_OBJ_XRO_IPV4 1
327 #define RSVP_OBJ_XRO_IPV6 2
328 #define RSVP_OBJ_XRO_LABEL 3
329 #define RSVP_OBJ_XRO_ASN 32
330 #define RSVP_OBJ_XRO_MPLS 64
331
332 static const struct tok rsvp_obj_xro_values[] = {
333 { RSVP_OBJ_XRO_RES, "Reserved" },
334 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
335 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
336 { RSVP_OBJ_XRO_LABEL, "Label" },
337 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
338 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
339 { 0, NULL}
340 };
341
342 /* RFC4090 */
343 static const struct tok rsvp_obj_rro_flag_values[] = {
344 { 0x01, "Local protection available" },
345 { 0x02, "Local protection in use" },
346 { 0x04, "Bandwidth protection" },
347 { 0x08, "Node protection" },
348 { 0, NULL}
349 };
350
351 /* RFC3209 */
352 static const struct tok rsvp_obj_rro_label_flag_values[] = {
353 { 0x01, "Global" },
354 { 0, NULL}
355 };
356
357 static const struct tok rsvp_resstyle_values[] = {
358 { 17, "Wildcard Filter" },
359 { 10, "Fixed Filter" },
360 { 18, "Shared Explicit" },
361 { 0, NULL}
362 };
363
364 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
365 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
366
367 static const struct tok rsvp_intserv_service_type_values[] = {
368 { 1, "Default/Global Information" },
369 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
370 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
371 { 0, NULL}
372 };
373
374 static const struct tok rsvp_intserv_parameter_id_values[] = {
375 { 4, "IS hop cnt" },
376 { 6, "Path b/w estimate" },
377 { 8, "Minimum path latency" },
378 { 10, "Composed MTU" },
379 { 127, "Token Bucket TSpec" },
380 { 130, "Guaranteed Service RSpec" },
381 { 133, "End-to-end composed value for C" },
382 { 134, "End-to-end composed value for D" },
383 { 135, "Since-last-reshaping point composed C" },
384 { 136, "Since-last-reshaping point composed D" },
385 { 0, NULL}
386 };
387
388 static const struct tok rsvp_session_attribute_flag_values[] = {
389 { 0x01, "Local Protection" },
390 { 0x02, "Label Recording" },
391 { 0x04, "SE Style" },
392 { 0x08, "Bandwidth protection" }, /* RFC4090 */
393 { 0x10, "Node protection" }, /* RFC4090 */
394 { 0, NULL}
395 };
396
397 static const struct tok rsvp_obj_prop_tlv_values[] = {
398 { 0x01, "Cos" },
399 { 0x02, "Metric 1" },
400 { 0x04, "Metric 2" },
401 { 0x08, "CCC Status" },
402 { 0x10, "Path Type" },
403 { 0, NULL}
404 };
405
406 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
407 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
408 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28
409 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125
410
411 static const struct tok rsvp_obj_error_code_values[] = {
412 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
413 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
414 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
415 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" },
416 { 0, NULL}
417 };
418
419 static const struct tok rsvp_obj_error_code_routing_values[] = {
420 { 1, "Bad EXPLICIT_ROUTE object" },
421 { 2, "Bad strict node" },
422 { 3, "Bad loose node" },
423 { 4, "Bad initial subobject" },
424 { 5, "No route available toward destination" },
425 { 6, "Unacceptable label value" },
426 { 7, "RRO indicated routing loops" },
427 { 8, "non-RSVP-capable router in the path" },
428 { 9, "MPLS label allocation failure" },
429 { 10, "Unsupported L3PID" },
430 { 0, NULL}
431 };
432
433 static const struct tok rsvp_obj_error_code_diffserv_te_values[] = {
434 { 1, "Unexpected CT object" },
435 { 2, "Unsupported CT" },
436 { 3, "Invalid CT value" },
437 { 4, "CT/setup priority do not form a configured TE-Class" },
438 { 5, "CT/holding priority do not form a configured TE-Class" },
439 { 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" },
440 { 7, "Inconsistency between signaled PSC and signaled CT" },
441 { 8, "Inconsistency between signaled PHBs and signaled CT" },
442 { 0, NULL}
443 };
444
445 /* rfc3473 / rfc 3471 */
446 static const struct tok rsvp_obj_admin_status_flag_values[] = {
447 { 0x80000000, "Reflect" },
448 { 0x00000004, "Testing" },
449 { 0x00000002, "Admin-down" },
450 { 0x00000001, "Delete-in-progress" },
451 { 0, NULL}
452 };
453
454 /* label set actions - rfc3471 */
455 #define LABEL_SET_INCLUSIVE_LIST 0
456 #define LABEL_SET_EXCLUSIVE_LIST 1
457 #define LABEL_SET_INCLUSIVE_RANGE 2
458 #define LABEL_SET_EXCLUSIVE_RANGE 3
459
460 static const struct tok rsvp_obj_label_set_action_values[] = {
461 { LABEL_SET_INCLUSIVE_LIST, "Inclusive list" },
462 { LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" },
463 { LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" },
464 { LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" },
465 { 0, NULL}
466 };
467
468 /* OIF RSVP extensions UNI 1.0 Signaling, release 2 */
469 #define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1
470 #define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2
471 #define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3
472 #define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4
473 #define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5
474
475 static const struct tok rsvp_obj_generalized_uni_values[] = {
476 { RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" },
477 { RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" },
478 { RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" },
479 { RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" },
480 { RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" },
481 { 0, NULL}
482 };
483
484 /*
485 * this is a dissector for all the intserv defined
486 * specs as defined per rfc2215
487 * it is called from various rsvp objects;
488 * returns the amount of bytes being processed
489 */
490 static int
491 rsvp_intserv_print(netdissect_options *ndo,
492 const u_char *tptr, u_short obj_tlen)
493 {
494 int parameter_id,parameter_length;
495 union {
496 float f;
497 uint32_t i;
498 } bw;
499
500 if (obj_tlen < 4)
501 return 0;
502 parameter_id = *(tptr);
503 ND_TCHECK_2(tptr + 2);
504 parameter_length = EXTRACT_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
505
506 ND_PRINT((ndo, "\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
507 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
508 parameter_id,
509 parameter_length,
510 EXTRACT_U_1(tptr + 1)));
511
512 if (obj_tlen < parameter_length+4)
513 return 0;
514 switch(parameter_id) { /* parameter_id */
515
516 case 4:
517 /*
518 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
519 * | 4 (e) | (f) | 1 (g) |
520 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
521 * | IS hop cnt (32-bit unsigned integer) |
522 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
523 */
524 if (parameter_length == 4) {
525 ND_TCHECK_4(tptr + 4);
526 ND_PRINT((ndo, "\n\t\tIS hop count: %u", EXTRACT_BE_U_4(tptr + 4)));
527 }
528 break;
529
530 case 6:
531 /*
532 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
533 * | 6 (h) | (i) | 1 (j) |
534 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
535 * | Path b/w estimate (32-bit IEEE floating point number) |
536 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
537 */
538 if (parameter_length == 4) {
539 ND_TCHECK_4(tptr + 4);
540 bw.i = EXTRACT_BE_U_4(tptr + 4);
541 ND_PRINT((ndo, "\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000));
542 }
543 break;
544
545 case 8:
546 /*
547 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
548 * | 8 (k) | (l) | 1 (m) |
549 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
550 * | Minimum path latency (32-bit integer) |
551 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
552 */
553 if (parameter_length == 4) {
554 ND_TCHECK_4(tptr + 4);
555 ND_PRINT((ndo, "\n\t\tMinimum path latency: "));
556 if (EXTRACT_BE_U_4(tptr + 4) == 0xffffffff)
557 ND_PRINT((ndo, "don't care"));
558 else
559 ND_PRINT((ndo, "%u", EXTRACT_BE_U_4(tptr + 4)));
560 }
561 break;
562
563 case 10:
564
565 /*
566 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
567 * | 10 (n) | (o) | 1 (p) |
568 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
569 * | Composed MTU (32-bit unsigned integer) |
570 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
571 */
572 if (parameter_length == 4) {
573 ND_TCHECK_4(tptr + 4);
574 ND_PRINT((ndo, "\n\t\tComposed MTU: %u bytes", EXTRACT_BE_U_4(tptr + 4)));
575 }
576 break;
577 case 127:
578 /*
579 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
580 * | 127 (e) | 0 (f) | 5 (g) |
581 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
582 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
583 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
584 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
585 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
586 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
587 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
588 * | Minimum Policed Unit [m] (32-bit integer) |
589 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
590 * | Maximum Packet Size [M] (32-bit integer) |
591 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
592 */
593
594 if (parameter_length == 20) {
595 ND_TCHECK2(*(tptr + 4), 20);
596 bw.i = EXTRACT_BE_U_4(tptr + 4);
597 ND_PRINT((ndo, "\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000));
598 bw.i = EXTRACT_BE_U_4(tptr + 8);
599 ND_PRINT((ndo, "\n\t\tToken Bucket Size: %.10g bytes", bw.f));
600 bw.i = EXTRACT_BE_U_4(tptr + 12);
601 ND_PRINT((ndo, "\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000));
602 ND_PRINT((ndo, "\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_BE_U_4(tptr + 16)));
603 ND_PRINT((ndo, "\n\t\tMaximum Packet Size: %u bytes", EXTRACT_BE_U_4(tptr + 20)));
604 }
605 break;
606
607 case 130:
608 /*
609 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
610 * | 130 (h) | 0 (i) | 2 (j) |
611 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
612 * | Rate [R] (32-bit IEEE floating point number) |
613 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
614 * | Slack Term [S] (32-bit integer) |
615 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
616 */
617
618 if (parameter_length == 8) {
619 ND_TCHECK_8(tptr + 4);
620 bw.i = EXTRACT_BE_U_4(tptr + 4);
621 ND_PRINT((ndo, "\n\t\tRate: %.10g Mbps", bw.f / 125000));
622 ND_PRINT((ndo, "\n\t\tSlack Term: %u", EXTRACT_BE_U_4(tptr + 8)));
623 }
624 break;
625
626 case 133:
627 case 134:
628 case 135:
629 case 136:
630 if (parameter_length == 4) {
631 ND_TCHECK_4(tptr + 4);
632 ND_PRINT((ndo, "\n\t\tValue: %u", EXTRACT_BE_U_4(tptr + 4)));
633 }
634 break;
635
636 default:
637 if (ndo->ndo_vflag <= 1)
638 print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
639 }
640 return (parameter_length+4); /* header length 4 bytes */
641
642 trunc:
643 ND_PRINT((ndo, "%s", tstr));
644 return 0;
645 }
646
647 /*
648 * Clear checksum prior to signature verification.
649 */
650 static void
651 rsvp_clear_checksum(void *header)
652 {
653 struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
654
655 rsvp_com_header->checksum[0] = 0;
656 rsvp_com_header->checksum[1] = 0;
657 }
658
659 static int
660 rsvp_obj_print(netdissect_options *ndo,
661 const u_char *pptr, u_int plen, const u_char *tptr,
662 const char *indent, u_int tlen,
663 const struct rsvp_common_header *rsvp_com_header)
664 {
665 const struct rsvp_object_header *rsvp_obj_header;
666 const u_char *obj_tptr;
667 union {
668 const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
669 const struct rsvp_obj_frr_t *rsvp_obj_frr;
670 } obj_ptr;
671
672 u_short rsvp_obj_len,rsvp_obj_ctype,obj_tlen,intserv_serv_tlen;
673 int hexdump,processed,padbytes,error_code,error_value,i,sigcheck;
674 union {
675 float f;
676 uint32_t i;
677 } bw;
678 uint8_t namelen;
679
680 u_int action, subchannel;
681
682 while(tlen>=sizeof(struct rsvp_object_header)) {
683 /* did we capture enough for fully decoding the object header ? */
684 ND_TCHECK2(*tptr, sizeof(struct rsvp_object_header));
685
686 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
687 rsvp_obj_len=EXTRACT_BE_U_2(rsvp_obj_header->length);
688 rsvp_obj_ctype=rsvp_obj_header->ctype;
689
690 if(rsvp_obj_len % 4) {
691 ND_PRINT((ndo, "%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len));
692 return -1;
693 }
694 if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
695 ND_PRINT((ndo, "%sERROR: object header too short %u < %lu", indent, rsvp_obj_len,
696 (unsigned long)sizeof(struct rsvp_object_header)));
697 return -1;
698 }
699
700 ND_PRINT((ndo, "%s%s Object (%u) Flags: [%s",
701 indent,
702 tok2str(rsvp_obj_values,
703 "Unknown",
704 rsvp_obj_header->class_num),
705 rsvp_obj_header->class_num,
706 ((rsvp_obj_header->class_num) & 0x80) ? "ignore" : "reject"));
707
708 if (rsvp_obj_header->class_num > 128)
709 ND_PRINT((ndo, " %s",
710 ((rsvp_obj_header->class_num) & 0x40) ? "and forward" : "silently"));
711
712 ND_PRINT((ndo, " if unknown], Class-Type: %s (%u), length: %u",
713 tok2str(rsvp_ctype_values,
714 "Unknown",
715 ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
716 rsvp_obj_ctype,
717 rsvp_obj_len));
718
719 if(tlen < rsvp_obj_len) {
720 ND_PRINT((ndo, "%sERROR: object goes past end of objects TLV", indent));
721 return -1;
722 }
723
724 obj_tptr=tptr+sizeof(struct rsvp_object_header);
725 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
726
727 /* did we capture enough for fully decoding the object ? */
728 if (!ND_TTEST2(*tptr, rsvp_obj_len))
729 return -1;
730 hexdump=FALSE;
731
732 switch(rsvp_obj_header->class_num) {
733 case RSVP_OBJ_SESSION:
734 switch(rsvp_obj_ctype) {
735 case RSVP_CTYPE_IPV4:
736 if (obj_tlen < 8)
737 return -1;
738 ND_PRINT((ndo, "%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
739 indent,
740 ipaddr_string(ndo, obj_tptr),
741 EXTRACT_U_1(obj_tptr + sizeof(struct in_addr))));
742 ND_PRINT((ndo, "%s Flags: [0x%02x], DestPort %u",
743 indent,
744 EXTRACT_U_1((obj_tptr + 5)),
745 EXTRACT_BE_U_2(obj_tptr + 6)));
746 obj_tlen-=8;
747 obj_tptr+=8;
748 break;
749 case RSVP_CTYPE_IPV6:
750 if (obj_tlen < 20)
751 return -1;
752 ND_PRINT((ndo, "%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
753 indent,
754 ip6addr_string(ndo, obj_tptr),
755 EXTRACT_U_1(obj_tptr + sizeof(struct in6_addr))));
756 ND_PRINT((ndo, "%s Flags: [0x%02x], DestPort %u",
757 indent,
758 EXTRACT_U_1((obj_tptr + sizeof(struct in6_addr) + 1)),
759 EXTRACT_BE_U_2(obj_tptr + sizeof(struct in6_addr) + 2)));
760 obj_tlen-=20;
761 obj_tptr+=20;
762 break;
763
764 case RSVP_CTYPE_TUNNEL_IPV6:
765 if (obj_tlen < 36)
766 return -1;
767 ND_PRINT((ndo, "%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
768 indent,
769 ip6addr_string(ndo, obj_tptr),
770 EXTRACT_BE_U_2(obj_tptr + 18),
771 ip6addr_string(ndo, obj_tptr + 20)));
772 obj_tlen-=36;
773 obj_tptr+=36;
774 break;
775
776 case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
777 if (obj_tlen < 26)
778 return -1;
779 ND_PRINT((ndo, "%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
780 indent,
781 EXTRACT_BE_U_4(obj_tptr),
782 EXTRACT_BE_U_2(obj_tptr + 6),
783 ip6addr_string(ndo, obj_tptr + 8)));
784 obj_tlen-=26;
785 obj_tptr+=26;
786 break;
787 case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
788 if (obj_tlen < 12)
789 return -1;
790 ND_PRINT((ndo, "%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
791 indent,
792 ipaddr_string(ndo, obj_tptr),
793 EXTRACT_BE_U_2(obj_tptr + 6),
794 ipaddr_string(ndo, obj_tptr + 8)));
795 obj_tlen-=12;
796 obj_tptr+=12;
797 break;
798 case RSVP_CTYPE_TUNNEL_IPV4:
799 case RSVP_CTYPE_UNI_IPV4:
800 if (obj_tlen < 12)
801 return -1;
802 ND_PRINT((ndo, "%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
803 indent,
804 ipaddr_string(ndo, obj_tptr),
805 EXTRACT_BE_U_2(obj_tptr + 6),
806 ipaddr_string(ndo, obj_tptr + 8)));
807 obj_tlen-=12;
808 obj_tptr+=12;
809 break;
810 default:
811 hexdump=TRUE;
812 }
813 break;
814
815 case RSVP_OBJ_CONFIRM:
816 switch(rsvp_obj_ctype) {
817 case RSVP_CTYPE_IPV4:
818 if (obj_tlen < sizeof(struct in_addr))
819 return -1;
820 ND_PRINT((ndo, "%s IPv4 Receiver Address: %s",
821 indent,
822 ipaddr_string(ndo, obj_tptr)));
823 obj_tlen-=sizeof(struct in_addr);
824 obj_tptr+=sizeof(struct in_addr);
825 break;
826 case RSVP_CTYPE_IPV6:
827 if (obj_tlen < sizeof(struct in6_addr))
828 return -1;
829 ND_PRINT((ndo, "%s IPv6 Receiver Address: %s",
830 indent,
831 ip6addr_string(ndo, obj_tptr)));
832 obj_tlen-=sizeof(struct in6_addr);
833 obj_tptr+=sizeof(struct in6_addr);
834 break;
835 default:
836 hexdump=TRUE;
837 }
838 break;
839
840 case RSVP_OBJ_NOTIFY_REQ:
841 switch(rsvp_obj_ctype) {
842 case RSVP_CTYPE_IPV4:
843 if (obj_tlen < sizeof(struct in_addr))
844 return -1;
845 ND_PRINT((ndo, "%s IPv4 Notify Node Address: %s",
846 indent,
847 ipaddr_string(ndo, obj_tptr)));
848 obj_tlen-=sizeof(struct in_addr);
849 obj_tptr+=sizeof(struct in_addr);
850 break;
851 case RSVP_CTYPE_IPV6:
852 if (obj_tlen < sizeof(struct in6_addr))
853 return-1;
854 ND_PRINT((ndo, "%s IPv6 Notify Node Address: %s",
855 indent,
856 ip6addr_string(ndo, obj_tptr)));
857 obj_tlen-=sizeof(struct in6_addr);
858 obj_tptr+=sizeof(struct in6_addr);
859 break;
860 default:
861 hexdump=TRUE;
862 }
863 break;
864
865 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
866 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
867 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
868 case RSVP_OBJ_LABEL:
869 switch(rsvp_obj_ctype) {
870 case RSVP_CTYPE_1:
871 while(obj_tlen >= 4 ) {
872 ND_PRINT((ndo, "%s Label: %u", indent, EXTRACT_BE_U_4(obj_tptr)));
873 obj_tlen-=4;
874 obj_tptr+=4;
875 }
876 break;
877 case RSVP_CTYPE_2:
878 if (obj_tlen < 4)
879 return-1;
880 ND_PRINT((ndo, "%s Generalized Label: %u",
881 indent,
882 EXTRACT_BE_U_4(obj_tptr)));
883 obj_tlen-=4;
884 obj_tptr+=4;
885 break;
886 case RSVP_CTYPE_3:
887 if (obj_tlen < 12)
888 return-1;
889 ND_PRINT((ndo, "%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
890 indent,
891 EXTRACT_BE_U_4(obj_tptr),
892 indent,
893 EXTRACT_BE_U_4(obj_tptr + 4),
894 EXTRACT_BE_U_4(obj_tptr + 8)));
895 obj_tlen-=12;
896 obj_tptr+=12;
897 break;
898 default:
899 hexdump=TRUE;
900 }
901 break;
902
903 case RSVP_OBJ_STYLE:
904 switch(rsvp_obj_ctype) {
905 case RSVP_CTYPE_1:
906 if (obj_tlen < 4)
907 return-1;
908 ND_PRINT((ndo, "%s Reservation Style: %s, Flags: [0x%02x]",
909 indent,
910 tok2str(rsvp_resstyle_values,
911 "Unknown",
912 EXTRACT_BE_U_3(obj_tptr + 1)),
913 EXTRACT_U_1(obj_tptr)));
914 obj_tlen-=4;
915 obj_tptr+=4;
916 break;
917 default:
918 hexdump=TRUE;
919 }
920 break;
921
922 case RSVP_OBJ_SENDER_TEMPLATE:
923 switch(rsvp_obj_ctype) {
924 case RSVP_CTYPE_IPV4:
925 if (obj_tlen < 8)
926 return-1;
927 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
928 indent,
929 ipaddr_string(ndo, obj_tptr),
930 EXTRACT_BE_U_2(obj_tptr + 6)));
931 obj_tlen-=8;
932 obj_tptr+=8;
933 break;
934 case RSVP_CTYPE_IPV6:
935 if (obj_tlen < 20)
936 return-1;
937 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
938 indent,
939 ip6addr_string(ndo, obj_tptr),
940 EXTRACT_BE_U_2(obj_tptr + 18)));
941 obj_tlen-=20;
942 obj_tptr+=20;
943 break;
944 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
945 if (obj_tlen < 40)
946 return-1;
947 ND_PRINT((ndo, "%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
948 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
949 indent,
950 ip6addr_string(ndo, obj_tptr),
951 EXTRACT_BE_U_2(obj_tptr + 18),
952 indent,
953 ip6addr_string(ndo, obj_tptr+20),
954 EXTRACT_BE_U_2(obj_tptr + 38)));
955 obj_tlen-=40;
956 obj_tptr+=40;
957 break;
958 case RSVP_CTYPE_TUNNEL_IPV4:
959 if (obj_tlen < 8)
960 return-1;
961 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
962 indent,
963 ipaddr_string(ndo, obj_tptr),
964 EXTRACT_BE_U_2(obj_tptr + 6)));
965 obj_tlen-=8;
966 obj_tptr+=8;
967 break;
968 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
969 if (obj_tlen < 16)
970 return-1;
971 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
972 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
973 indent,
974 ipaddr_string(ndo, obj_tptr),
975 EXTRACT_BE_U_2(obj_tptr + 6),
976 indent,
977 ipaddr_string(ndo, obj_tptr+8),
978 EXTRACT_BE_U_2(obj_tptr + 12)));
979 obj_tlen-=16;
980 obj_tptr+=16;
981 break;
982 default:
983 hexdump=TRUE;
984 }
985 break;
986
987 case RSVP_OBJ_LABEL_REQ:
988 switch(rsvp_obj_ctype) {
989 case RSVP_CTYPE_1:
990 while(obj_tlen >= 4 ) {
991 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
992 indent,
993 tok2str(ethertype_values,
994 "Unknown Protocol (0x%04x)",
995 EXTRACT_BE_U_2(obj_tptr + 2))));
996 obj_tlen-=4;
997 obj_tptr+=4;
998 }
999 break;
1000 case RSVP_CTYPE_2:
1001 if (obj_tlen < 12)
1002 return-1;
1003 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
1004 indent,
1005 tok2str(ethertype_values,
1006 "Unknown Protocol (0x%04x)",
1007 EXTRACT_BE_U_2(obj_tptr + 2))));
1008 ND_PRINT((ndo, ",%s merge capability",((EXTRACT_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" ));
1009 ND_PRINT((ndo, "%s Minimum VPI/VCI: %u/%u",
1010 indent,
1011 (EXTRACT_BE_U_2(obj_tptr + 4))&0xfff,
1012 (EXTRACT_BE_U_2(obj_tptr + 6)) & 0xfff));
1013 ND_PRINT((ndo, "%s Maximum VPI/VCI: %u/%u",
1014 indent,
1015 (EXTRACT_BE_U_2(obj_tptr + 8))&0xfff,
1016 (EXTRACT_BE_U_2(obj_tptr + 10)) & 0xfff));
1017 obj_tlen-=12;
1018 obj_tptr+=12;
1019 break;
1020 case RSVP_CTYPE_3:
1021 if (obj_tlen < 12)
1022 return-1;
1023 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
1024 indent,
1025 tok2str(ethertype_values,
1026 "Unknown Protocol (0x%04x)",
1027 EXTRACT_BE_U_2(obj_tptr + 2))));
1028 ND_PRINT((ndo, "%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1029 indent,
1030 (EXTRACT_BE_U_4(obj_tptr + 4))&0x7fffff,
1031 (EXTRACT_BE_U_4(obj_tptr + 8))&0x7fffff,
1032 (((EXTRACT_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
1033 (((EXTRACT_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : ""));
1034 obj_tlen-=12;
1035 obj_tptr+=12;
1036 break;
1037 case RSVP_CTYPE_4:
1038 if (obj_tlen < 4)
1039 return-1;
1040 ND_PRINT((ndo, "%s LSP Encoding Type: %s (%u)",
1041 indent,
1042 tok2str(gmpls_encoding_values,
1043 "Unknown",
1044 EXTRACT_U_1(obj_tptr)),
1045 EXTRACT_U_1(obj_tptr)));
1046 ND_PRINT((ndo, "%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
1047 indent,
1048 tok2str(gmpls_switch_cap_values,
1049 "Unknown",
1050 EXTRACT_U_1((obj_tptr + 1))),
1051 EXTRACT_U_1(obj_tptr + 1),
1052 tok2str(gmpls_payload_values,
1053 "Unknown",
1054 EXTRACT_BE_U_2(obj_tptr + 2)),
1055 EXTRACT_BE_U_2(obj_tptr + 2)));
1056 obj_tlen-=4;
1057 obj_tptr+=4;
1058 break;
1059 default:
1060 hexdump=TRUE;
1061 }
1062 break;
1063
1064 case RSVP_OBJ_RRO:
1065 case RSVP_OBJ_ERO:
1066 switch(rsvp_obj_ctype) {
1067 case RSVP_CTYPE_IPV4:
1068 while(obj_tlen >= 4 ) {
1069 u_char length;
1070
1071 ND_TCHECK_4(obj_tptr);
1072 length = EXTRACT_U_1(obj_tptr + 1);
1073 ND_PRINT((ndo, "%s Subobject Type: %s, length %u",
1074 indent,
1075 tok2str(rsvp_obj_xro_values,
1076 "Unknown %u",
1077 RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))),
1078 length));
1079
1080 if (length == 0) { /* prevent infinite loops */
1081 ND_PRINT((ndo, "%s ERROR: zero length ERO subtype", indent));
1082 break;
1083 }
1084
1085 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))) {
1086 u_char prefix_length;
1087
1088 case RSVP_OBJ_XRO_IPV4:
1089 if (length != 8) {
1090 ND_PRINT((ndo, " ERROR: length != 8"));
1091 goto invalid;
1092 }
1093 ND_TCHECK_8(obj_tptr);
1094 prefix_length = EXTRACT_U_1(obj_tptr + 6);
1095 if (prefix_length != 32) {
1096 ND_PRINT((ndo, " ERROR: Prefix length %u != 32",
1097 prefix_length));
1098 goto invalid;
1099 }
1100 ND_PRINT((ndo, ", %s, %s/%u, Flags: [%s]",
1101 RSVP_OBJ_XRO_MASK_LOOSE(EXTRACT_U_1(obj_tptr)) ? "Loose" : "Strict",
1102 ipaddr_string(ndo, obj_tptr+2),
1103 EXTRACT_U_1((obj_tptr + 6)),
1104 bittok2str(rsvp_obj_rro_flag_values,
1105 "none",
1106 EXTRACT_U_1((obj_tptr + 7))))); /* rfc3209 says that this field is rsvd. */
1107 break;
1108 case RSVP_OBJ_XRO_LABEL:
1109 if (length != 8) {
1110 ND_PRINT((ndo, " ERROR: length != 8"));
1111 goto invalid;
1112 }
1113 ND_TCHECK_8(obj_tptr);
1114 ND_PRINT((ndo, ", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1115 bittok2str(rsvp_obj_rro_label_flag_values,
1116 "none",
1117 EXTRACT_U_1((obj_tptr + 2))),
1118 EXTRACT_U_1(obj_tptr + 2),
1119 tok2str(rsvp_ctype_values,
1120 "Unknown",
1121 EXTRACT_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
1122 EXTRACT_U_1((obj_tptr + 3)),
1123 EXTRACT_BE_U_4(obj_tptr + 4)));
1124 }
1125 obj_tlen-=EXTRACT_U_1(obj_tptr + 1);
1126 obj_tptr+=EXTRACT_U_1(obj_tptr + 1);
1127 }
1128 break;
1129 default:
1130 hexdump=TRUE;
1131 }
1132 break;
1133
1134 case RSVP_OBJ_HELLO:
1135 switch(rsvp_obj_ctype) {
1136 case RSVP_CTYPE_1:
1137 case RSVP_CTYPE_2:
1138 if (obj_tlen < 8)
1139 return-1;
1140 ND_PRINT((ndo, "%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1141 indent,
1142 EXTRACT_BE_U_4(obj_tptr),
1143 EXTRACT_BE_U_4(obj_tptr + 4)));
1144 obj_tlen-=8;
1145 obj_tptr+=8;
1146 break;
1147 default:
1148 hexdump=TRUE;
1149 }
1150 break;
1151
1152 case RSVP_OBJ_RESTART_CAPABILITY:
1153 switch(rsvp_obj_ctype) {
1154 case RSVP_CTYPE_1:
1155 if (obj_tlen < 8)
1156 return-1;
1157 ND_PRINT((ndo, "%s Restart Time: %ums, Recovery Time: %ums",
1158 indent,
1159 EXTRACT_BE_U_4(obj_tptr),
1160 EXTRACT_BE_U_4(obj_tptr + 4)));
1161 obj_tlen-=8;
1162 obj_tptr+=8;
1163 break;
1164 default:
1165 hexdump=TRUE;
1166 }
1167 break;
1168
1169 case RSVP_OBJ_SESSION_ATTRIBUTE:
1170 switch(rsvp_obj_ctype) {
1171 case RSVP_CTYPE_TUNNEL_IPV4:
1172 if (obj_tlen < 4)
1173 return-1;
1174 namelen = EXTRACT_U_1(obj_tptr + 3);
1175 if (obj_tlen < 4+namelen)
1176 return-1;
1177 ND_PRINT((ndo, "%s Session Name: ", indent));
1178 for (i = 0; i < namelen; i++)
1179 safeputchar(ndo, EXTRACT_U_1(obj_tptr + 4 + i));
1180 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1181 indent,
1182 EXTRACT_U_1(obj_tptr),
1183 EXTRACT_U_1(obj_tptr + 1),
1184 bittok2str(rsvp_session_attribute_flag_values,
1185 "none",
1186 EXTRACT_U_1((obj_tptr + 2))),
1187 EXTRACT_U_1(obj_tptr + 2)));
1188 obj_tlen-=4+EXTRACT_U_1((obj_tptr + 3));
1189 obj_tptr+=4+EXTRACT_U_1((obj_tptr + 3));
1190 break;
1191 default:
1192 hexdump=TRUE;
1193 }
1194 break;
1195
1196 case RSVP_OBJ_GENERALIZED_UNI:
1197 switch(rsvp_obj_ctype) {
1198 int subobj_type,af,subobj_len,total_subobj_len;
1199
1200 case RSVP_CTYPE_1:
1201
1202 if (obj_tlen < 4)
1203 return-1;
1204
1205 /* read variable length subobjects */
1206 total_subobj_len = obj_tlen;
1207 while(total_subobj_len > 0) {
1208 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1209 * GENERALIZED_UNI RSVP object must have the Length field as
1210 * a multiple of 4, instead of the check below it would be
1211 * better to test total_subobj_len only once before the loop.
1212 * So long as it does not define it and this while loop does
1213 * not implement such a requirement, let's accept that within
1214 * each iteration subobj_len may happen to be a multiple of 1
1215 * and test it and total_subobj_len respectively.
1216 */
1217 if (total_subobj_len < 4)
1218 goto invalid;
1219 subobj_len = EXTRACT_BE_U_2(obj_tptr);
1220 subobj_type = (EXTRACT_BE_U_2(obj_tptr + 2))>>8;
1221 af = (EXTRACT_BE_U_2(obj_tptr + 2))&0x00FF;
1222
1223 ND_PRINT((ndo, "%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1224 indent,
1225 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1226 subobj_type,
1227 tok2str(af_values, "Unknown", af), af,
1228 subobj_len));
1229
1230 /* In addition to what is explained above, the same spec does not
1231 * explicitly say that the same Length field includes the 4-octet
1232 * sub-object header, but as long as this while loop implements it
1233 * as it does include, let's keep the check below consistent with
1234 * the rest of the code.
1235 */
1236 if(subobj_len < 4 || subobj_len > total_subobj_len)
1237 goto invalid;
1238
1239 switch(subobj_type) {
1240 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1241 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1242
1243 switch(af) {
1244 case AFNUM_INET:
1245 if (subobj_len < 8)
1246 return -1;
1247 ND_PRINT((ndo, "%s UNI IPv4 TNA address: %s",
1248 indent, ipaddr_string(ndo, obj_tptr + 4)));
1249 break;
1250 case AFNUM_INET6:
1251 if (subobj_len < 20)
1252 return -1;
1253 ND_PRINT((ndo, "%s UNI IPv6 TNA address: %s",
1254 indent, ip6addr_string(ndo, obj_tptr + 4)));
1255 break;
1256 case AFNUM_NSAP:
1257 if (subobj_len) {
1258 /* unless we have a TLV parser lets just hexdump */
1259 hexdump=TRUE;
1260 }
1261 break;
1262 }
1263 break;
1264
1265 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1266 if (subobj_len) {
1267 /* unless we have a TLV parser lets just hexdump */
1268 hexdump=TRUE;
1269 }
1270 break;
1271
1272 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1273 if (subobj_len < 16) {
1274 return -1;
1275 }
1276
1277 ND_PRINT((ndo, "%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1278 indent,
1279 ((EXTRACT_BE_U_4(obj_tptr + 4))>>31),
1280 ((EXTRACT_BE_U_4(obj_tptr + 4))&0xFF),
1281 EXTRACT_BE_U_4(obj_tptr + 8),
1282 EXTRACT_BE_U_4(obj_tptr + 12)));
1283 break;
1284
1285 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1286 if (subobj_len < 8) {
1287 return -1;
1288 }
1289
1290 ND_PRINT((ndo, "%s Service level: %u",
1291 indent, (EXTRACT_BE_U_4(obj_tptr + 4)) >> 24));
1292 break;
1293
1294 default:
1295 hexdump=TRUE;
1296 break;
1297 }
1298 total_subobj_len-=subobj_len;
1299 obj_tptr+=subobj_len;
1300 obj_tlen+=subobj_len;
1301 }
1302
1303 if (total_subobj_len) {
1304 /* unless we have a TLV parser lets just hexdump */
1305 hexdump=TRUE;
1306 }
1307 break;
1308
1309 default:
1310 hexdump=TRUE;
1311 }
1312 break;
1313
1314 case RSVP_OBJ_RSVP_HOP:
1315 switch(rsvp_obj_ctype) {
1316 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1317 case RSVP_CTYPE_IPV4:
1318 if (obj_tlen < 8)
1319 return-1;
1320 ND_PRINT((ndo, "%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1321 indent,
1322 ipaddr_string(ndo, obj_tptr),
1323 EXTRACT_BE_U_4(obj_tptr + 4)));
1324 obj_tlen-=8;
1325 obj_tptr+=8;
1326 if (obj_tlen)
1327 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1328 break;
1329 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1330 case RSVP_CTYPE_IPV6:
1331 if (obj_tlen < 20)
1332 return-1;
1333 ND_PRINT((ndo, "%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1334 indent,
1335 ip6addr_string(ndo, obj_tptr),
1336 EXTRACT_BE_U_4(obj_tptr + 16)));
1337 obj_tlen-=20;
1338 obj_tptr+=20;
1339 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1340 break;
1341 default:
1342 hexdump=TRUE;
1343 }
1344 break;
1345
1346 case RSVP_OBJ_TIME_VALUES:
1347 switch(rsvp_obj_ctype) {
1348 case RSVP_CTYPE_1:
1349 if (obj_tlen < 4)
1350 return-1;
1351 ND_PRINT((ndo, "%s Refresh Period: %ums",
1352 indent,
1353 EXTRACT_BE_U_4(obj_tptr)));
1354 obj_tlen-=4;
1355 obj_tptr+=4;
1356 break;
1357 default:
1358 hexdump=TRUE;
1359 }
1360 break;
1361
1362 /* those three objects do share the same semantics */
1363 case RSVP_OBJ_SENDER_TSPEC:
1364 case RSVP_OBJ_ADSPEC:
1365 case RSVP_OBJ_FLOWSPEC:
1366 switch(rsvp_obj_ctype) {
1367 case RSVP_CTYPE_2:
1368 if (obj_tlen < 4)
1369 return-1;
1370 ND_PRINT((ndo, "%s Msg-Version: %u, length: %u",
1371 indent,
1372 (EXTRACT_U_1(obj_tptr) & 0xf0) >> 4,
1373 EXTRACT_BE_U_2(obj_tptr + 2) << 2));
1374 obj_tptr+=4; /* get to the start of the service header */
1375 obj_tlen-=4;
1376
1377 while (obj_tlen >= 4) {
1378 intserv_serv_tlen=EXTRACT_BE_U_2(obj_tptr + 2)<<2;
1379 ND_PRINT((ndo, "%s Service Type: %s (%u), break bit %s set, Service length: %u",
1380 indent,
1381 tok2str(rsvp_intserv_service_type_values,"unknown",EXTRACT_U_1((obj_tptr))),
1382 EXTRACT_U_1(obj_tptr),
1383 (EXTRACT_U_1(obj_tptr + 1)&0x80) ? "" : "not",
1384 intserv_serv_tlen));
1385
1386 obj_tptr+=4; /* get to the start of the parameter list */
1387 obj_tlen-=4;
1388
1389 while (intserv_serv_tlen>=4) {
1390 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1391 if (processed == 0)
1392 break;
1393 obj_tlen-=processed;
1394 intserv_serv_tlen-=processed;
1395 obj_tptr+=processed;
1396 }
1397 }
1398 break;
1399 default:
1400 hexdump=TRUE;
1401 }
1402 break;
1403
1404 case RSVP_OBJ_FILTERSPEC:
1405 switch(rsvp_obj_ctype) {
1406 case RSVP_CTYPE_IPV4:
1407 if (obj_tlen < 8)
1408 return-1;
1409 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
1410 indent,
1411 ipaddr_string(ndo, obj_tptr),
1412 EXTRACT_BE_U_2(obj_tptr + 6)));
1413 obj_tlen-=8;
1414 obj_tptr+=8;
1415 break;
1416 case RSVP_CTYPE_IPV6:
1417 if (obj_tlen < 20)
1418 return-1;
1419 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
1420 indent,
1421 ip6addr_string(ndo, obj_tptr),
1422 EXTRACT_BE_U_2(obj_tptr + 18)));
1423 obj_tlen-=20;
1424 obj_tptr+=20;
1425 break;
1426 case RSVP_CTYPE_3:
1427 if (obj_tlen < 20)
1428 return-1;
1429 ND_PRINT((ndo, "%s Source Address: %s, Flow Label: %u",
1430 indent,
1431 ip6addr_string(ndo, obj_tptr),
1432 EXTRACT_BE_U_3(obj_tptr + 17)));
1433 obj_tlen-=20;
1434 obj_tptr+=20;
1435 break;
1436 case RSVP_CTYPE_TUNNEL_IPV6:
1437 if (obj_tlen < 20)
1438 return-1;
1439 ND_PRINT((ndo, "%s Source Address: %s, LSP-ID: 0x%04x",
1440 indent,
1441 ipaddr_string(ndo, obj_tptr),
1442 EXTRACT_BE_U_2(obj_tptr + 18)));
1443 obj_tlen-=20;
1444 obj_tptr+=20;
1445 break;
1446 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1447 if (obj_tlen < 40)
1448 return-1;
1449 ND_PRINT((ndo, "%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1450 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1451 indent,
1452 ip6addr_string(ndo, obj_tptr),
1453 EXTRACT_BE_U_2(obj_tptr + 18),
1454 indent,
1455 ip6addr_string(ndo, obj_tptr+20),
1456 EXTRACT_BE_U_2(obj_tptr + 38)));
1457 obj_tlen-=40;
1458 obj_tptr+=40;
1459 break;
1460 case RSVP_CTYPE_TUNNEL_IPV4:
1461 if (obj_tlen < 8)
1462 return-1;
1463 ND_PRINT((ndo, "%s Source Address: %s, LSP-ID: 0x%04x",
1464 indent,
1465 ipaddr_string(ndo, obj_tptr),
1466 EXTRACT_BE_U_2(obj_tptr + 6)));
1467 obj_tlen-=8;
1468 obj_tptr+=8;
1469 break;
1470 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1471 if (obj_tlen < 16)
1472 return-1;
1473 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1474 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1475 indent,
1476 ipaddr_string(ndo, obj_tptr),
1477 EXTRACT_BE_U_2(obj_tptr + 6),
1478 indent,
1479 ipaddr_string(ndo, obj_tptr+8),
1480 EXTRACT_BE_U_2(obj_tptr + 12)));
1481 obj_tlen-=16;
1482 obj_tptr+=16;
1483 break;
1484 default:
1485 hexdump=TRUE;
1486 }
1487 break;
1488
1489 case RSVP_OBJ_FASTREROUTE:
1490 /* the differences between c-type 1 and 7 are minor */
1491 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1492
1493 switch(rsvp_obj_ctype) {
1494 case RSVP_CTYPE_1: /* new style */
1495 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1496 return-1;
1497 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1498 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1499 indent,
1500 obj_ptr.rsvp_obj_frr->setup_prio,
1501 obj_ptr.rsvp_obj_frr->hold_prio,
1502 obj_ptr.rsvp_obj_frr->hop_limit,
1503 bw.f * 8 / 1000000));
1504 ND_PRINT((ndo, "%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1505 indent,
1506 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1507 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
1508 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_all)));
1509 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1510 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1511 break;
1512
1513 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1514 if (obj_tlen < 16)
1515 return-1;
1516 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1517 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1518 indent,
1519 obj_ptr.rsvp_obj_frr->setup_prio,
1520 obj_ptr.rsvp_obj_frr->hold_prio,
1521 obj_ptr.rsvp_obj_frr->hop_limit,
1522 bw.f * 8 / 1000000));
1523 ND_PRINT((ndo, "%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1524 indent,
1525 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1526 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any)));
1527 obj_tlen-=16;
1528 obj_tptr+=16;
1529 break;
1530
1531 default:
1532 hexdump=TRUE;
1533 }
1534 break;
1535
1536 case RSVP_OBJ_DETOUR:
1537 switch(rsvp_obj_ctype) {
1538 case RSVP_CTYPE_TUNNEL_IPV4:
1539 while(obj_tlen >= 8) {
1540 ND_PRINT((ndo, "%s PLR-ID: %s, Avoid-Node-ID: %s",
1541 indent,
1542 ipaddr_string(ndo, obj_tptr),
1543 ipaddr_string(ndo, obj_tptr + 4)));
1544 obj_tlen-=8;
1545 obj_tptr+=8;
1546 }
1547 break;
1548 default:
1549 hexdump=TRUE;
1550 }
1551 break;
1552
1553 case RSVP_OBJ_CLASSTYPE:
1554 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1555 switch(rsvp_obj_ctype) {
1556 case RSVP_CTYPE_1:
1557 ND_PRINT((ndo, "%s CT: %u",
1558 indent,
1559 EXTRACT_BE_U_4(obj_tptr) & 0x7));
1560 obj_tlen-=4;
1561 obj_tptr+=4;
1562 break;
1563 default:
1564 hexdump=TRUE;
1565 }
1566 break;
1567
1568 case RSVP_OBJ_ERROR_SPEC:
1569 switch(rsvp_obj_ctype) {
1570 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1571 case RSVP_CTYPE_IPV4:
1572 if (obj_tlen < 8)
1573 return-1;
1574 error_code=EXTRACT_U_1(obj_tptr + 5);
1575 error_value=EXTRACT_BE_U_2(obj_tptr + 6);
1576 ND_PRINT((ndo, "%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1577 indent,
1578 ipaddr_string(ndo, obj_tptr),
1579 EXTRACT_U_1(obj_tptr + 4),
1580 indent,
1581 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1582 error_code));
1583 switch (error_code) {
1584 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1585 ND_PRINT((ndo, ", Error Value: %s (%u)",
1586 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1587 error_value));
1588 break;
1589 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1590 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1591 ND_PRINT((ndo, ", Error Value: %s (%u)",
1592 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1593 error_value));
1594 break;
1595 default:
1596 ND_PRINT((ndo, ", Unknown Error Value (%u)", error_value));
1597 break;
1598 }
1599 obj_tlen-=8;
1600 obj_tptr+=8;
1601 break;
1602 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1603 case RSVP_CTYPE_IPV6:
1604 if (obj_tlen < 20)
1605 return-1;
1606 error_code=EXTRACT_U_1(obj_tptr + 17);
1607 error_value=EXTRACT_BE_U_2(obj_tptr + 18);
1608 ND_PRINT((ndo, "%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1609 indent,
1610 ip6addr_string(ndo, obj_tptr),
1611 EXTRACT_U_1(obj_tptr + 16),
1612 indent,
1613 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1614 error_code));
1615
1616 switch (error_code) {
1617 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1618 ND_PRINT((ndo, ", Error Value: %s (%u)",
1619 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1620 error_value));
1621 break;
1622 default:
1623 break;
1624 }
1625 obj_tlen-=20;
1626 obj_tptr+=20;
1627 break;
1628 default:
1629 hexdump=TRUE;
1630 }
1631 break;
1632
1633 case RSVP_OBJ_PROPERTIES:
1634 switch(rsvp_obj_ctype) {
1635 case RSVP_CTYPE_1:
1636 if (obj_tlen < 4)
1637 return-1;
1638 padbytes = EXTRACT_BE_U_2(obj_tptr + 2);
1639 ND_PRINT((ndo, "%s TLV count: %u, padding bytes: %u",
1640 indent,
1641 EXTRACT_BE_U_2(obj_tptr),
1642 padbytes));
1643 obj_tlen-=4;
1644 obj_tptr+=4;
1645 /* loop through as long there is anything longer than the TLV header (2) */
1646 while(obj_tlen >= 2 + padbytes) {
1647 ND_PRINT((ndo, "%s %s TLV (0x%02x), length: %u", /* length includes header */
1648 indent,
1649 tok2str(rsvp_obj_prop_tlv_values,"unknown",EXTRACT_U_1(obj_tptr)),
1650 EXTRACT_U_1(obj_tptr),
1651 EXTRACT_U_1(obj_tptr + 1)));
1652 if (obj_tlen < EXTRACT_U_1((obj_tptr + 1)))
1653 return-1;
1654 if (EXTRACT_U_1(obj_tptr + 1) < 2)
1655 return -1;
1656 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
1657 EXTRACT_U_1(obj_tptr + 1) - 2);
1658 obj_tlen-=EXTRACT_U_1(obj_tptr + 1);
1659 obj_tptr+=EXTRACT_U_1(obj_tptr + 1);
1660 }
1661 break;
1662 default:
1663 hexdump=TRUE;
1664 }
1665 break;
1666
1667 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1668 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1669 case RSVP_OBJ_MESSAGE_ID_LIST:
1670 switch(rsvp_obj_ctype) {
1671 case RSVP_CTYPE_1:
1672 case RSVP_CTYPE_2:
1673 if (obj_tlen < 8)
1674 return-1;
1675 ND_PRINT((ndo, "%s Flags [0x%02x], epoch: %u",
1676 indent,
1677 EXTRACT_U_1(obj_tptr),
1678 EXTRACT_BE_U_3(obj_tptr + 1)));
1679 obj_tlen-=4;
1680 obj_tptr+=4;
1681 /* loop through as long there are no messages left */
1682 while(obj_tlen >= 4) {
1683 ND_PRINT((ndo, "%s Message-ID 0x%08x (%u)",
1684 indent,
1685 EXTRACT_BE_U_4(obj_tptr),
1686 EXTRACT_BE_U_4(obj_tptr)));
1687 obj_tlen-=4;
1688 obj_tptr+=4;
1689 }
1690 break;
1691 default:
1692 hexdump=TRUE;
1693 }
1694 break;
1695
1696 case RSVP_OBJ_INTEGRITY:
1697 switch(rsvp_obj_ctype) {
1698 case RSVP_CTYPE_1:
1699 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1700 return-1;
1701 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1702 ND_PRINT((ndo, "%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1703 indent,
1704 EXTRACT_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
1705 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
1706 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
1707 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
1708 bittok2str(rsvp_obj_integrity_flag_values,
1709 "none",
1710 obj_ptr.rsvp_obj_integrity->flags)));
1711 ND_PRINT((ndo, "%s MD5-sum 0x%08x%08x%08x%08x ",
1712 indent,
1713 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
1714 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
1715 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
1716 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12)));
1717
1718 sigcheck = signature_verify(ndo, pptr, plen,
1719 obj_ptr.rsvp_obj_integrity->digest,
1720 rsvp_clear_checksum,
1721 rsvp_com_header);
1722 ND_PRINT((ndo, " (%s)", tok2str(signature_check_values, "Unknown", sigcheck)));
1723
1724 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1725 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1726 break;
1727 default:
1728 hexdump=TRUE;
1729 }
1730 break;
1731
1732 case RSVP_OBJ_ADMIN_STATUS:
1733 switch(rsvp_obj_ctype) {
1734 case RSVP_CTYPE_1:
1735 if (obj_tlen < 4)
1736 return-1;
1737 ND_PRINT((ndo, "%s Flags [%s]", indent,
1738 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1739 EXTRACT_BE_U_4(obj_tptr))));
1740 obj_tlen-=4;
1741 obj_tptr+=4;
1742 break;
1743 default:
1744 hexdump=TRUE;
1745 }
1746 break;
1747
1748 case RSVP_OBJ_LABEL_SET:
1749 switch(rsvp_obj_ctype) {
1750 case RSVP_CTYPE_1:
1751 if (obj_tlen < 4)
1752 return-1;
1753 action = (EXTRACT_BE_U_2(obj_tptr)>>8);
1754
1755 ND_PRINT((ndo, "%s Action: %s (%u), Label type: %u", indent,
1756 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1757 action, ((EXTRACT_BE_U_4(obj_tptr) & 0x7F))));
1758
1759 switch (action) {
1760 case LABEL_SET_INCLUSIVE_RANGE:
1761 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1762
1763 /* only a couple of subchannels are expected */
1764 if (obj_tlen < 12)
1765 return -1;
1766 ND_PRINT((ndo, "%s Start range: %u, End range: %u", indent,
1767 EXTRACT_BE_U_4(obj_tptr + 4),
1768 EXTRACT_BE_U_4(obj_tptr + 8)));
1769 obj_tlen-=12;
1770 obj_tptr+=12;
1771 break;
1772
1773 default:
1774 obj_tlen-=4;
1775 obj_tptr+=4;
1776 subchannel = 1;
1777 while(obj_tlen >= 4 ) {
1778 ND_PRINT((ndo, "%s Subchannel #%u: %u", indent, subchannel,
1779 EXTRACT_BE_U_4(obj_tptr)));
1780 obj_tptr+=4;
1781 obj_tlen-=4;
1782 subchannel++;
1783 }
1784 break;
1785 }
1786 break;
1787 default:
1788 hexdump=TRUE;
1789 }
1790 break;
1791
1792 case RSVP_OBJ_S2L:
1793 switch (rsvp_obj_ctype) {
1794 case RSVP_CTYPE_IPV4:
1795 if (obj_tlen < 4)
1796 return-1;
1797 ND_PRINT((ndo, "%s Sub-LSP destination address: %s",
1798 indent, ipaddr_string(ndo, obj_tptr)));
1799
1800 obj_tlen-=4;
1801 obj_tptr+=4;
1802 break;
1803 case RSVP_CTYPE_IPV6:
1804 if (obj_tlen < 16)
1805 return-1;
1806 ND_PRINT((ndo, "%s Sub-LSP destination address: %s",
1807 indent, ip6addr_string(ndo, obj_tptr)));
1808
1809 obj_tlen-=16;
1810 obj_tptr+=16;
1811 break;
1812 default:
1813 hexdump=TRUE;
1814 }
1815 break;
1816
1817 /*
1818 * FIXME those are the defined objects that lack a decoder
1819 * you are welcome to contribute code ;-)
1820 */
1821
1822 case RSVP_OBJ_SCOPE:
1823 case RSVP_OBJ_POLICY_DATA:
1824 case RSVP_OBJ_ACCEPT_LABEL_SET:
1825 case RSVP_OBJ_PROTECTION:
1826 default:
1827 if (ndo->ndo_vflag <= 1)
1828 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1829 break;
1830 }
1831 /* do we also want to see a hex dump ? */
1832 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1833 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1834 rsvp_obj_len - sizeof(struct rsvp_object_header));
1835
1836 tptr+=rsvp_obj_len;
1837 tlen-=rsvp_obj_len;
1838 }
1839 return 0;
1840 invalid:
1841 ND_PRINT((ndo, "%s", istr));
1842 return -1;
1843 trunc:
1844 ND_PRINT((ndo, "\n\t\t"));
1845 ND_PRINT((ndo, "%s", tstr));
1846 return -1;
1847 }
1848
1849 void
1850 rsvp_print(netdissect_options *ndo,
1851 register const u_char *pptr, register u_int len)
1852 {
1853 const struct rsvp_common_header *rsvp_com_header;
1854 const u_char *tptr;
1855 u_short plen, tlen;
1856
1857 tptr=pptr;
1858
1859 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1860 ND_TCHECK(*rsvp_com_header);
1861
1862 /*
1863 * Sanity checking of the header.
1864 */
1865 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1866 ND_PRINT((ndo, "ERROR: RSVP version %u packet not supported",
1867 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags)));
1868 return;
1869 }
1870
1871 /* in non-verbose mode just lets print the basic Message Type*/
1872 if (ndo->ndo_vflag < 1) {
1873 ND_PRINT((ndo, "RSVPv%u %s Message, length: %u",
1874 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1875 tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
1876 len));
1877 return;
1878 }
1879
1880 /* ok they seem to want to know everything - lets fully decode it */
1881
1882 plen = tlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1883
1884 ND_PRINT((ndo, "\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1885 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1886 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1887 rsvp_com_header->msg_type,
1888 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1889 tlen,
1890 rsvp_com_header->ttl,
1891 EXTRACT_BE_U_2(rsvp_com_header->checksum)));
1892
1893 if (tlen < sizeof(struct rsvp_common_header)) {
1894 ND_PRINT((ndo, "ERROR: common header too short %u < %lu", tlen,
1895 (unsigned long)sizeof(struct rsvp_common_header)));
1896 return;
1897 }
1898
1899 tptr+=sizeof(struct rsvp_common_header);
1900 tlen-=sizeof(struct rsvp_common_header);
1901
1902 switch(rsvp_com_header->msg_type) {
1903
1904 case RSVP_MSGTYPE_BUNDLE:
1905 /*
1906 * Process each submessage in the bundle message.
1907 * Bundle messages may not contain bundle submessages, so we don't
1908 * need to handle bundle submessages specially.
1909 */
1910 while(tlen > 0) {
1911 const u_char *subpptr=tptr, *subtptr;
1912 u_short subplen, subtlen;
1913
1914 subtptr=subpptr;
1915
1916 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1917 ND_TCHECK(*rsvp_com_header);
1918
1919 /*
1920 * Sanity checking of the header.
1921 */
1922 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1923 ND_PRINT((ndo, "ERROR: RSVP version %u packet not supported",
1924 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags)));
1925 return;
1926 }
1927
1928 subplen = subtlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1929
1930 ND_PRINT((ndo, "\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1931 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1932 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1933 rsvp_com_header->msg_type,
1934 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1935 subtlen,
1936 rsvp_com_header->ttl,
1937 EXTRACT_BE_U_2(rsvp_com_header->checksum)));
1938
1939 if (subtlen < sizeof(struct rsvp_common_header)) {
1940 ND_PRINT((ndo, "ERROR: common header too short %u < %lu", subtlen,
1941 (unsigned long)sizeof(struct rsvp_common_header)));
1942 return;
1943 }
1944
1945 if (tlen < subtlen) {
1946 ND_PRINT((ndo, "ERROR: common header too large %u > %u", subtlen,
1947 tlen));
1948 return;
1949 }
1950
1951 subtptr+=sizeof(struct rsvp_common_header);
1952 subtlen-=sizeof(struct rsvp_common_header);
1953
1954 /*
1955 * Print all objects in the submessage.
1956 */
1957 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
1958 return;
1959
1960 tptr+=subtlen+sizeof(struct rsvp_common_header);
1961 tlen-=subtlen+sizeof(struct rsvp_common_header);
1962 }
1963
1964 break;
1965
1966 case RSVP_MSGTYPE_PATH:
1967 case RSVP_MSGTYPE_RESV:
1968 case RSVP_MSGTYPE_PATHERR:
1969 case RSVP_MSGTYPE_RESVERR:
1970 case RSVP_MSGTYPE_PATHTEAR:
1971 case RSVP_MSGTYPE_RESVTEAR:
1972 case RSVP_MSGTYPE_RESVCONF:
1973 case RSVP_MSGTYPE_HELLO_OLD:
1974 case RSVP_MSGTYPE_HELLO:
1975 case RSVP_MSGTYPE_ACK:
1976 case RSVP_MSGTYPE_SREFRESH:
1977 /*
1978 * Print all objects in the message.
1979 */
1980 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
1981 return;
1982 break;
1983
1984 default:
1985 print_unknown_data(ndo, tptr, "\n\t ", tlen);
1986 break;
1987 }
1988
1989 return;
1990 trunc:
1991 ND_PRINT((ndo, "\n\t\t"));
1992 ND_PRINT((ndo, "%s", tstr));
1993 }
[mirror] the TCPdump network dissector