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Use nd_ types, add EXTRACT_ calls.
[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 u_int
491 rsvp_intserv_print(netdissect_options *ndo,
492 const u_char *tptr, u_short obj_tlen)
493 {
494 u_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 ND_TCHECK_1(tptr);
503 parameter_id = EXTRACT_U_1(tptr);
504 ND_TCHECK_2(tptr + 2);
505 parameter_length = EXTRACT_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
506
507 ND_PRINT((ndo, "\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
508 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
509 parameter_id,
510 parameter_length,
511 EXTRACT_U_1(tptr + 1)));
512
513 if (obj_tlen < parameter_length+4)
514 return 0;
515 switch(parameter_id) { /* parameter_id */
516
517 case 4:
518 /*
519 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
520 * | 4 (e) | (f) | 1 (g) |
521 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
522 * | IS hop cnt (32-bit unsigned integer) |
523 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
524 */
525 if (parameter_length == 4) {
526 ND_TCHECK_4(tptr + 4);
527 ND_PRINT((ndo, "\n\t\tIS hop count: %u", EXTRACT_BE_U_4(tptr + 4)));
528 }
529 break;
530
531 case 6:
532 /*
533 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
534 * | 6 (h) | (i) | 1 (j) |
535 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
536 * | Path b/w estimate (32-bit IEEE floating point number) |
537 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
538 */
539 if (parameter_length == 4) {
540 ND_TCHECK_4(tptr + 4);
541 bw.i = EXTRACT_BE_U_4(tptr + 4);
542 ND_PRINT((ndo, "\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000));
543 }
544 break;
545
546 case 8:
547 /*
548 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
549 * | 8 (k) | (l) | 1 (m) |
550 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
551 * | Minimum path latency (32-bit integer) |
552 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
553 */
554 if (parameter_length == 4) {
555 ND_TCHECK_4(tptr + 4);
556 ND_PRINT((ndo, "\n\t\tMinimum path latency: "));
557 if (EXTRACT_BE_U_4(tptr + 4) == 0xffffffff)
558 ND_PRINT((ndo, "don't care"));
559 else
560 ND_PRINT((ndo, "%u", EXTRACT_BE_U_4(tptr + 4)));
561 }
562 break;
563
564 case 10:
565
566 /*
567 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
568 * | 10 (n) | (o) | 1 (p) |
569 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
570 * | Composed MTU (32-bit unsigned integer) |
571 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
572 */
573 if (parameter_length == 4) {
574 ND_TCHECK_4(tptr + 4);
575 ND_PRINT((ndo, "\n\t\tComposed MTU: %u bytes", EXTRACT_BE_U_4(tptr + 4)));
576 }
577 break;
578 case 127:
579 /*
580 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
581 * | 127 (e) | 0 (f) | 5 (g) |
582 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
583 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
584 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
585 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
586 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
587 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
588 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
589 * | Minimum Policed Unit [m] (32-bit integer) |
590 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
591 * | Maximum Packet Size [M] (32-bit integer) |
592 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
593 */
594
595 if (parameter_length == 20) {
596 ND_TCHECK_LEN(tptr + 4, 20);
597 bw.i = EXTRACT_BE_U_4(tptr + 4);
598 ND_PRINT((ndo, "\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000));
599 bw.i = EXTRACT_BE_U_4(tptr + 8);
600 ND_PRINT((ndo, "\n\t\tToken Bucket Size: %.10g bytes", bw.f));
601 bw.i = EXTRACT_BE_U_4(tptr + 12);
602 ND_PRINT((ndo, "\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000));
603 ND_PRINT((ndo, "\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_BE_U_4(tptr + 16)));
604 ND_PRINT((ndo, "\n\t\tMaximum Packet Size: %u bytes", EXTRACT_BE_U_4(tptr + 20)));
605 }
606 break;
607
608 case 130:
609 /*
610 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
611 * | 130 (h) | 0 (i) | 2 (j) |
612 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
613 * | Rate [R] (32-bit IEEE floating point number) |
614 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
615 * | Slack Term [S] (32-bit integer) |
616 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
617 */
618
619 if (parameter_length == 8) {
620 ND_TCHECK_8(tptr + 4);
621 bw.i = EXTRACT_BE_U_4(tptr + 4);
622 ND_PRINT((ndo, "\n\t\tRate: %.10g Mbps", bw.f / 125000));
623 ND_PRINT((ndo, "\n\t\tSlack Term: %u", EXTRACT_BE_U_4(tptr + 8)));
624 }
625 break;
626
627 case 133:
628 case 134:
629 case 135:
630 case 136:
631 if (parameter_length == 4) {
632 ND_TCHECK_4(tptr + 4);
633 ND_PRINT((ndo, "\n\t\tValue: %u", EXTRACT_BE_U_4(tptr + 4)));
634 }
635 break;
636
637 default:
638 if (ndo->ndo_vflag <= 1)
639 print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
640 }
641 return (parameter_length+4); /* header length 4 bytes */
642
643 trunc:
644 ND_PRINT((ndo, "%s", tstr));
645 return 0;
646 }
647
648 /*
649 * Clear checksum prior to signature verification.
650 */
651 static void
652 rsvp_clear_checksum(void *header)
653 {
654 struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
655
656 rsvp_com_header->checksum[0] = 0;
657 rsvp_com_header->checksum[1] = 0;
658 }
659
660 static int
661 rsvp_obj_print(netdissect_options *ndo,
662 const u_char *pptr, u_int plen, const u_char *tptr,
663 const char *indent, u_int tlen,
664 const struct rsvp_common_header *rsvp_com_header)
665 {
666 const struct rsvp_object_header *rsvp_obj_header;
667 const u_char *obj_tptr;
668 union {
669 const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
670 const struct rsvp_obj_frr_t *rsvp_obj_frr;
671 } obj_ptr;
672
673 u_short rsvp_obj_len,rsvp_obj_ctype,obj_tlen;
674 u_int intserv_serv_tlen;
675 int hexdump,processed,padbytes,error_code,error_value,i,sigcheck;
676 union {
677 float f;
678 uint32_t i;
679 } bw;
680 uint8_t namelen;
681
682 u_int action, subchannel;
683
684 while(tlen>=sizeof(struct rsvp_object_header)) {
685 /* did we capture enough for fully decoding the object header ? */
686 ND_TCHECK_LEN(tptr, sizeof(struct rsvp_object_header));
687
688 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
689 rsvp_obj_len=EXTRACT_BE_U_2(rsvp_obj_header->length);
690 rsvp_obj_ctype=rsvp_obj_header->ctype;
691
692 if(rsvp_obj_len % 4) {
693 ND_PRINT((ndo, "%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len));
694 return -1;
695 }
696 if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
697 ND_PRINT((ndo, "%sERROR: object header too short %u < %lu", indent, rsvp_obj_len,
698 (unsigned long)sizeof(struct rsvp_object_header)));
699 return -1;
700 }
701
702 ND_PRINT((ndo, "%s%s Object (%u) Flags: [%s",
703 indent,
704 tok2str(rsvp_obj_values,
705 "Unknown",
706 rsvp_obj_header->class_num),
707 rsvp_obj_header->class_num,
708 ((rsvp_obj_header->class_num) & 0x80) ? "ignore" : "reject"));
709
710 if (rsvp_obj_header->class_num > 128)
711 ND_PRINT((ndo, " %s",
712 ((rsvp_obj_header->class_num) & 0x40) ? "and forward" : "silently"));
713
714 ND_PRINT((ndo, " if unknown], Class-Type: %s (%u), length: %u",
715 tok2str(rsvp_ctype_values,
716 "Unknown",
717 ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
718 rsvp_obj_ctype,
719 rsvp_obj_len));
720
721 if(tlen < rsvp_obj_len) {
722 ND_PRINT((ndo, "%sERROR: object goes past end of objects TLV", indent));
723 return -1;
724 }
725
726 obj_tptr=tptr+sizeof(struct rsvp_object_header);
727 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
728
729 /* did we capture enough for fully decoding the object ? */
730 if (!ND_TTEST_LEN(tptr, rsvp_obj_len))
731 return -1;
732 hexdump=FALSE;
733
734 switch(rsvp_obj_header->class_num) {
735 case RSVP_OBJ_SESSION:
736 switch(rsvp_obj_ctype) {
737 case RSVP_CTYPE_IPV4:
738 if (obj_tlen < 8)
739 return -1;
740 ND_PRINT((ndo, "%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
741 indent,
742 ipaddr_string(ndo, obj_tptr),
743 EXTRACT_U_1(obj_tptr + sizeof(struct in_addr))));
744 ND_PRINT((ndo, "%s Flags: [0x%02x], DestPort %u",
745 indent,
746 EXTRACT_U_1((obj_tptr + 5)),
747 EXTRACT_BE_U_2(obj_tptr + 6)));
748 obj_tlen-=8;
749 obj_tptr+=8;
750 break;
751 case RSVP_CTYPE_IPV6:
752 if (obj_tlen < 20)
753 return -1;
754 ND_PRINT((ndo, "%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
755 indent,
756 ip6addr_string(ndo, obj_tptr),
757 EXTRACT_U_1(obj_tptr + sizeof(struct in6_addr))));
758 ND_PRINT((ndo, "%s Flags: [0x%02x], DestPort %u",
759 indent,
760 EXTRACT_U_1((obj_tptr + sizeof(struct in6_addr) + 1)),
761 EXTRACT_BE_U_2(obj_tptr + sizeof(struct in6_addr) + 2)));
762 obj_tlen-=20;
763 obj_tptr+=20;
764 break;
765
766 case RSVP_CTYPE_TUNNEL_IPV6:
767 if (obj_tlen < 36)
768 return -1;
769 ND_PRINT((ndo, "%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
770 indent,
771 ip6addr_string(ndo, obj_tptr),
772 EXTRACT_BE_U_2(obj_tptr + 18),
773 ip6addr_string(ndo, obj_tptr + 20)));
774 obj_tlen-=36;
775 obj_tptr+=36;
776 break;
777
778 case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
779 if (obj_tlen < 26)
780 return -1;
781 ND_PRINT((ndo, "%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
782 indent,
783 EXTRACT_BE_U_4(obj_tptr),
784 EXTRACT_BE_U_2(obj_tptr + 6),
785 ip6addr_string(ndo, obj_tptr + 8)));
786 obj_tlen-=26;
787 obj_tptr+=26;
788 break;
789 case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
790 if (obj_tlen < 12)
791 return -1;
792 ND_PRINT((ndo, "%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
793 indent,
794 ipaddr_string(ndo, obj_tptr),
795 EXTRACT_BE_U_2(obj_tptr + 6),
796 ipaddr_string(ndo, obj_tptr + 8)));
797 obj_tlen-=12;
798 obj_tptr+=12;
799 break;
800 case RSVP_CTYPE_TUNNEL_IPV4:
801 case RSVP_CTYPE_UNI_IPV4:
802 if (obj_tlen < 12)
803 return -1;
804 ND_PRINT((ndo, "%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
805 indent,
806 ipaddr_string(ndo, obj_tptr),
807 EXTRACT_BE_U_2(obj_tptr + 6),
808 ipaddr_string(ndo, obj_tptr + 8)));
809 obj_tlen-=12;
810 obj_tptr+=12;
811 break;
812 default:
813 hexdump=TRUE;
814 }
815 break;
816
817 case RSVP_OBJ_CONFIRM:
818 switch(rsvp_obj_ctype) {
819 case RSVP_CTYPE_IPV4:
820 if (obj_tlen < sizeof(struct in_addr))
821 return -1;
822 ND_PRINT((ndo, "%s IPv4 Receiver Address: %s",
823 indent,
824 ipaddr_string(ndo, obj_tptr)));
825 obj_tlen-=sizeof(struct in_addr);
826 obj_tptr+=sizeof(struct in_addr);
827 break;
828 case RSVP_CTYPE_IPV6:
829 if (obj_tlen < sizeof(struct in6_addr))
830 return -1;
831 ND_PRINT((ndo, "%s IPv6 Receiver Address: %s",
832 indent,
833 ip6addr_string(ndo, obj_tptr)));
834 obj_tlen-=sizeof(struct in6_addr);
835 obj_tptr+=sizeof(struct in6_addr);
836 break;
837 default:
838 hexdump=TRUE;
839 }
840 break;
841
842 case RSVP_OBJ_NOTIFY_REQ:
843 switch(rsvp_obj_ctype) {
844 case RSVP_CTYPE_IPV4:
845 if (obj_tlen < sizeof(struct in_addr))
846 return -1;
847 ND_PRINT((ndo, "%s IPv4 Notify Node Address: %s",
848 indent,
849 ipaddr_string(ndo, obj_tptr)));
850 obj_tlen-=sizeof(struct in_addr);
851 obj_tptr+=sizeof(struct in_addr);
852 break;
853 case RSVP_CTYPE_IPV6:
854 if (obj_tlen < sizeof(struct in6_addr))
855 return-1;
856 ND_PRINT((ndo, "%s IPv6 Notify Node Address: %s",
857 indent,
858 ip6addr_string(ndo, obj_tptr)));
859 obj_tlen-=sizeof(struct in6_addr);
860 obj_tptr+=sizeof(struct in6_addr);
861 break;
862 default:
863 hexdump=TRUE;
864 }
865 break;
866
867 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
868 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
869 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
870 case RSVP_OBJ_LABEL:
871 switch(rsvp_obj_ctype) {
872 case RSVP_CTYPE_1:
873 while(obj_tlen >= 4 ) {
874 ND_PRINT((ndo, "%s Label: %u", indent, EXTRACT_BE_U_4(obj_tptr)));
875 obj_tlen-=4;
876 obj_tptr+=4;
877 }
878 break;
879 case RSVP_CTYPE_2:
880 if (obj_tlen < 4)
881 return-1;
882 ND_PRINT((ndo, "%s Generalized Label: %u",
883 indent,
884 EXTRACT_BE_U_4(obj_tptr)));
885 obj_tlen-=4;
886 obj_tptr+=4;
887 break;
888 case RSVP_CTYPE_3:
889 if (obj_tlen < 12)
890 return-1;
891 ND_PRINT((ndo, "%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
892 indent,
893 EXTRACT_BE_U_4(obj_tptr),
894 indent,
895 EXTRACT_BE_U_4(obj_tptr + 4),
896 EXTRACT_BE_U_4(obj_tptr + 8)));
897 obj_tlen-=12;
898 obj_tptr+=12;
899 break;
900 default:
901 hexdump=TRUE;
902 }
903 break;
904
905 case RSVP_OBJ_STYLE:
906 switch(rsvp_obj_ctype) {
907 case RSVP_CTYPE_1:
908 if (obj_tlen < 4)
909 return-1;
910 ND_PRINT((ndo, "%s Reservation Style: %s, Flags: [0x%02x]",
911 indent,
912 tok2str(rsvp_resstyle_values,
913 "Unknown",
914 EXTRACT_BE_U_3(obj_tptr + 1)),
915 EXTRACT_U_1(obj_tptr)));
916 obj_tlen-=4;
917 obj_tptr+=4;
918 break;
919 default:
920 hexdump=TRUE;
921 }
922 break;
923
924 case RSVP_OBJ_SENDER_TEMPLATE:
925 switch(rsvp_obj_ctype) {
926 case RSVP_CTYPE_IPV4:
927 if (obj_tlen < 8)
928 return-1;
929 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
930 indent,
931 ipaddr_string(ndo, obj_tptr),
932 EXTRACT_BE_U_2(obj_tptr + 6)));
933 obj_tlen-=8;
934 obj_tptr+=8;
935 break;
936 case RSVP_CTYPE_IPV6:
937 if (obj_tlen < 20)
938 return-1;
939 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
940 indent,
941 ip6addr_string(ndo, obj_tptr),
942 EXTRACT_BE_U_2(obj_tptr + 18)));
943 obj_tlen-=20;
944 obj_tptr+=20;
945 break;
946 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
947 if (obj_tlen < 40)
948 return-1;
949 ND_PRINT((ndo, "%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
950 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
951 indent,
952 ip6addr_string(ndo, obj_tptr),
953 EXTRACT_BE_U_2(obj_tptr + 18),
954 indent,
955 ip6addr_string(ndo, obj_tptr+20),
956 EXTRACT_BE_U_2(obj_tptr + 38)));
957 obj_tlen-=40;
958 obj_tptr+=40;
959 break;
960 case RSVP_CTYPE_TUNNEL_IPV4:
961 if (obj_tlen < 8)
962 return-1;
963 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
964 indent,
965 ipaddr_string(ndo, obj_tptr),
966 EXTRACT_BE_U_2(obj_tptr + 6)));
967 obj_tlen-=8;
968 obj_tptr+=8;
969 break;
970 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
971 if (obj_tlen < 16)
972 return-1;
973 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
974 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
975 indent,
976 ipaddr_string(ndo, obj_tptr),
977 EXTRACT_BE_U_2(obj_tptr + 6),
978 indent,
979 ipaddr_string(ndo, obj_tptr+8),
980 EXTRACT_BE_U_2(obj_tptr + 12)));
981 obj_tlen-=16;
982 obj_tptr+=16;
983 break;
984 default:
985 hexdump=TRUE;
986 }
987 break;
988
989 case RSVP_OBJ_LABEL_REQ:
990 switch(rsvp_obj_ctype) {
991 case RSVP_CTYPE_1:
992 while(obj_tlen >= 4 ) {
993 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
994 indent,
995 tok2str(ethertype_values,
996 "Unknown Protocol (0x%04x)",
997 EXTRACT_BE_U_2(obj_tptr + 2))));
998 obj_tlen-=4;
999 obj_tptr+=4;
1000 }
1001 break;
1002 case RSVP_CTYPE_2:
1003 if (obj_tlen < 12)
1004 return-1;
1005 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
1006 indent,
1007 tok2str(ethertype_values,
1008 "Unknown Protocol (0x%04x)",
1009 EXTRACT_BE_U_2(obj_tptr + 2))));
1010 ND_PRINT((ndo, ",%s merge capability",((EXTRACT_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" ));
1011 ND_PRINT((ndo, "%s Minimum VPI/VCI: %u/%u",
1012 indent,
1013 (EXTRACT_BE_U_2(obj_tptr + 4))&0xfff,
1014 (EXTRACT_BE_U_2(obj_tptr + 6)) & 0xfff));
1015 ND_PRINT((ndo, "%s Maximum VPI/VCI: %u/%u",
1016 indent,
1017 (EXTRACT_BE_U_2(obj_tptr + 8))&0xfff,
1018 (EXTRACT_BE_U_2(obj_tptr + 10)) & 0xfff));
1019 obj_tlen-=12;
1020 obj_tptr+=12;
1021 break;
1022 case RSVP_CTYPE_3:
1023 if (obj_tlen < 12)
1024 return-1;
1025 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
1026 indent,
1027 tok2str(ethertype_values,
1028 "Unknown Protocol (0x%04x)",
1029 EXTRACT_BE_U_2(obj_tptr + 2))));
1030 ND_PRINT((ndo, "%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1031 indent,
1032 (EXTRACT_BE_U_4(obj_tptr + 4))&0x7fffff,
1033 (EXTRACT_BE_U_4(obj_tptr + 8))&0x7fffff,
1034 (((EXTRACT_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
1035 (((EXTRACT_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : ""));
1036 obj_tlen-=12;
1037 obj_tptr+=12;
1038 break;
1039 case RSVP_CTYPE_4:
1040 if (obj_tlen < 4)
1041 return-1;
1042 ND_PRINT((ndo, "%s LSP Encoding Type: %s (%u)",
1043 indent,
1044 tok2str(gmpls_encoding_values,
1045 "Unknown",
1046 EXTRACT_U_1(obj_tptr)),
1047 EXTRACT_U_1(obj_tptr)));
1048 ND_PRINT((ndo, "%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
1049 indent,
1050 tok2str(gmpls_switch_cap_values,
1051 "Unknown",
1052 EXTRACT_U_1((obj_tptr + 1))),
1053 EXTRACT_U_1(obj_tptr + 1),
1054 tok2str(gmpls_payload_values,
1055 "Unknown",
1056 EXTRACT_BE_U_2(obj_tptr + 2)),
1057 EXTRACT_BE_U_2(obj_tptr + 2)));
1058 obj_tlen-=4;
1059 obj_tptr+=4;
1060 break;
1061 default:
1062 hexdump=TRUE;
1063 }
1064 break;
1065
1066 case RSVP_OBJ_RRO:
1067 case RSVP_OBJ_ERO:
1068 switch(rsvp_obj_ctype) {
1069 case RSVP_CTYPE_IPV4:
1070 while(obj_tlen >= 4 ) {
1071 u_char length;
1072
1073 ND_TCHECK_4(obj_tptr);
1074 length = EXTRACT_U_1(obj_tptr + 1);
1075 ND_PRINT((ndo, "%s Subobject Type: %s, length %u",
1076 indent,
1077 tok2str(rsvp_obj_xro_values,
1078 "Unknown %u",
1079 RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))),
1080 length));
1081
1082 if (length == 0) { /* prevent infinite loops */
1083 ND_PRINT((ndo, "%s ERROR: zero length ERO subtype", indent));
1084 break;
1085 }
1086
1087 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))) {
1088 u_char prefix_length;
1089
1090 case RSVP_OBJ_XRO_IPV4:
1091 if (length != 8) {
1092 ND_PRINT((ndo, " ERROR: length != 8"));
1093 goto invalid;
1094 }
1095 ND_TCHECK_8(obj_tptr);
1096 prefix_length = EXTRACT_U_1(obj_tptr + 6);
1097 if (prefix_length != 32) {
1098 ND_PRINT((ndo, " ERROR: Prefix length %u != 32",
1099 prefix_length));
1100 goto invalid;
1101 }
1102 ND_PRINT((ndo, ", %s, %s/%u, Flags: [%s]",
1103 RSVP_OBJ_XRO_MASK_LOOSE(EXTRACT_U_1(obj_tptr)) ? "Loose" : "Strict",
1104 ipaddr_string(ndo, obj_tptr+2),
1105 EXTRACT_U_1((obj_tptr + 6)),
1106 bittok2str(rsvp_obj_rro_flag_values,
1107 "none",
1108 EXTRACT_U_1((obj_tptr + 7))))); /* rfc3209 says that this field is rsvd. */
1109 break;
1110 case RSVP_OBJ_XRO_LABEL:
1111 if (length != 8) {
1112 ND_PRINT((ndo, " ERROR: length != 8"));
1113 goto invalid;
1114 }
1115 ND_TCHECK_8(obj_tptr);
1116 ND_PRINT((ndo, ", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1117 bittok2str(rsvp_obj_rro_label_flag_values,
1118 "none",
1119 EXTRACT_U_1((obj_tptr + 2))),
1120 EXTRACT_U_1(obj_tptr + 2),
1121 tok2str(rsvp_ctype_values,
1122 "Unknown",
1123 EXTRACT_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
1124 EXTRACT_U_1((obj_tptr + 3)),
1125 EXTRACT_BE_U_4(obj_tptr + 4)));
1126 }
1127 obj_tlen-=EXTRACT_U_1(obj_tptr + 1);
1128 obj_tptr+=EXTRACT_U_1(obj_tptr + 1);
1129 }
1130 break;
1131 default:
1132 hexdump=TRUE;
1133 }
1134 break;
1135
1136 case RSVP_OBJ_HELLO:
1137 switch(rsvp_obj_ctype) {
1138 case RSVP_CTYPE_1:
1139 case RSVP_CTYPE_2:
1140 if (obj_tlen < 8)
1141 return-1;
1142 ND_PRINT((ndo, "%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1143 indent,
1144 EXTRACT_BE_U_4(obj_tptr),
1145 EXTRACT_BE_U_4(obj_tptr + 4)));
1146 obj_tlen-=8;
1147 obj_tptr+=8;
1148 break;
1149 default:
1150 hexdump=TRUE;
1151 }
1152 break;
1153
1154 case RSVP_OBJ_RESTART_CAPABILITY:
1155 switch(rsvp_obj_ctype) {
1156 case RSVP_CTYPE_1:
1157 if (obj_tlen < 8)
1158 return-1;
1159 ND_PRINT((ndo, "%s Restart Time: %ums, Recovery Time: %ums",
1160 indent,
1161 EXTRACT_BE_U_4(obj_tptr),
1162 EXTRACT_BE_U_4(obj_tptr + 4)));
1163 obj_tlen-=8;
1164 obj_tptr+=8;
1165 break;
1166 default:
1167 hexdump=TRUE;
1168 }
1169 break;
1170
1171 case RSVP_OBJ_SESSION_ATTRIBUTE:
1172 switch(rsvp_obj_ctype) {
1173 case RSVP_CTYPE_TUNNEL_IPV4:
1174 if (obj_tlen < 4)
1175 return-1;
1176 namelen = EXTRACT_U_1(obj_tptr + 3);
1177 if (obj_tlen < 4+namelen)
1178 return-1;
1179 ND_PRINT((ndo, "%s Session Name: ", indent));
1180 for (i = 0; i < namelen; i++)
1181 safeputchar(ndo, EXTRACT_U_1(obj_tptr + 4 + i));
1182 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1183 indent,
1184 EXTRACT_U_1(obj_tptr),
1185 EXTRACT_U_1(obj_tptr + 1),
1186 bittok2str(rsvp_session_attribute_flag_values,
1187 "none",
1188 EXTRACT_U_1((obj_tptr + 2))),
1189 EXTRACT_U_1(obj_tptr + 2)));
1190 obj_tlen-=4+EXTRACT_U_1((obj_tptr + 3));
1191 obj_tptr+=4+EXTRACT_U_1((obj_tptr + 3));
1192 break;
1193 default:
1194 hexdump=TRUE;
1195 }
1196 break;
1197
1198 case RSVP_OBJ_GENERALIZED_UNI:
1199 switch(rsvp_obj_ctype) {
1200 int subobj_type,af,subobj_len,total_subobj_len;
1201
1202 case RSVP_CTYPE_1:
1203
1204 if (obj_tlen < 4)
1205 return-1;
1206
1207 /* read variable length subobjects */
1208 total_subobj_len = obj_tlen;
1209 while(total_subobj_len > 0) {
1210 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1211 * GENERALIZED_UNI RSVP object must have the Length field as
1212 * a multiple of 4, instead of the check below it would be
1213 * better to test total_subobj_len only once before the loop.
1214 * So long as it does not define it and this while loop does
1215 * not implement such a requirement, let's accept that within
1216 * each iteration subobj_len may happen to be a multiple of 1
1217 * and test it and total_subobj_len respectively.
1218 */
1219 if (total_subobj_len < 4)
1220 goto invalid;
1221 subobj_len = EXTRACT_BE_U_2(obj_tptr);
1222 subobj_type = (EXTRACT_BE_U_2(obj_tptr + 2))>>8;
1223 af = (EXTRACT_BE_U_2(obj_tptr + 2))&0x00FF;
1224
1225 ND_PRINT((ndo, "%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1226 indent,
1227 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1228 subobj_type,
1229 tok2str(af_values, "Unknown", af), af,
1230 subobj_len));
1231
1232 /* In addition to what is explained above, the same spec does not
1233 * explicitly say that the same Length field includes the 4-octet
1234 * sub-object header, but as long as this while loop implements it
1235 * as it does include, let's keep the check below consistent with
1236 * the rest of the code.
1237 */
1238 if(subobj_len < 4 || subobj_len > total_subobj_len)
1239 goto invalid;
1240
1241 switch(subobj_type) {
1242 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1243 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1244
1245 switch(af) {
1246 case AFNUM_INET:
1247 if (subobj_len < 8)
1248 return -1;
1249 ND_PRINT((ndo, "%s UNI IPv4 TNA address: %s",
1250 indent, ipaddr_string(ndo, obj_tptr + 4)));
1251 break;
1252 case AFNUM_INET6:
1253 if (subobj_len < 20)
1254 return -1;
1255 ND_PRINT((ndo, "%s UNI IPv6 TNA address: %s",
1256 indent, ip6addr_string(ndo, obj_tptr + 4)));
1257 break;
1258 case AFNUM_NSAP:
1259 if (subobj_len) {
1260 /* unless we have a TLV parser lets just hexdump */
1261 hexdump=TRUE;
1262 }
1263 break;
1264 }
1265 break;
1266
1267 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1268 if (subobj_len) {
1269 /* unless we have a TLV parser lets just hexdump */
1270 hexdump=TRUE;
1271 }
1272 break;
1273
1274 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1275 if (subobj_len < 16) {
1276 return -1;
1277 }
1278
1279 ND_PRINT((ndo, "%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1280 indent,
1281 ((EXTRACT_BE_U_4(obj_tptr + 4))>>31),
1282 ((EXTRACT_BE_U_4(obj_tptr + 4))&0xFF),
1283 EXTRACT_BE_U_4(obj_tptr + 8),
1284 EXTRACT_BE_U_4(obj_tptr + 12)));
1285 break;
1286
1287 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1288 if (subobj_len < 8) {
1289 return -1;
1290 }
1291
1292 ND_PRINT((ndo, "%s Service level: %u",
1293 indent, (EXTRACT_BE_U_4(obj_tptr + 4)) >> 24));
1294 break;
1295
1296 default:
1297 hexdump=TRUE;
1298 break;
1299 }
1300 total_subobj_len-=subobj_len;
1301 obj_tptr+=subobj_len;
1302 obj_tlen+=subobj_len;
1303 }
1304
1305 if (total_subobj_len) {
1306 /* unless we have a TLV parser lets just hexdump */
1307 hexdump=TRUE;
1308 }
1309 break;
1310
1311 default:
1312 hexdump=TRUE;
1313 }
1314 break;
1315
1316 case RSVP_OBJ_RSVP_HOP:
1317 switch(rsvp_obj_ctype) {
1318 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1319 case RSVP_CTYPE_IPV4:
1320 if (obj_tlen < 8)
1321 return-1;
1322 ND_PRINT((ndo, "%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1323 indent,
1324 ipaddr_string(ndo, obj_tptr),
1325 EXTRACT_BE_U_4(obj_tptr + 4)));
1326 obj_tlen-=8;
1327 obj_tptr+=8;
1328 if (obj_tlen)
1329 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1330 break;
1331 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1332 case RSVP_CTYPE_IPV6:
1333 if (obj_tlen < 20)
1334 return-1;
1335 ND_PRINT((ndo, "%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1336 indent,
1337 ip6addr_string(ndo, obj_tptr),
1338 EXTRACT_BE_U_4(obj_tptr + 16)));
1339 obj_tlen-=20;
1340 obj_tptr+=20;
1341 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1342 break;
1343 default:
1344 hexdump=TRUE;
1345 }
1346 break;
1347
1348 case RSVP_OBJ_TIME_VALUES:
1349 switch(rsvp_obj_ctype) {
1350 case RSVP_CTYPE_1:
1351 if (obj_tlen < 4)
1352 return-1;
1353 ND_PRINT((ndo, "%s Refresh Period: %ums",
1354 indent,
1355 EXTRACT_BE_U_4(obj_tptr)));
1356 obj_tlen-=4;
1357 obj_tptr+=4;
1358 break;
1359 default:
1360 hexdump=TRUE;
1361 }
1362 break;
1363
1364 /* those three objects do share the same semantics */
1365 case RSVP_OBJ_SENDER_TSPEC:
1366 case RSVP_OBJ_ADSPEC:
1367 case RSVP_OBJ_FLOWSPEC:
1368 switch(rsvp_obj_ctype) {
1369 case RSVP_CTYPE_2:
1370 if (obj_tlen < 4)
1371 return-1;
1372 ND_PRINT((ndo, "%s Msg-Version: %u, length: %u",
1373 indent,
1374 (EXTRACT_U_1(obj_tptr) & 0xf0) >> 4,
1375 EXTRACT_BE_U_2(obj_tptr + 2) << 2));
1376 obj_tptr+=4; /* get to the start of the service header */
1377 obj_tlen-=4;
1378
1379 while (obj_tlen >= 4) {
1380 intserv_serv_tlen=EXTRACT_BE_U_2(obj_tptr + 2)<<2;
1381 ND_PRINT((ndo, "%s Service Type: %s (%u), break bit %sset, Service length: %u",
1382 indent,
1383 tok2str(rsvp_intserv_service_type_values,"unknown",EXTRACT_U_1((obj_tptr))),
1384 EXTRACT_U_1(obj_tptr),
1385 (EXTRACT_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
1386 intserv_serv_tlen));
1387
1388 obj_tptr+=4; /* get to the start of the parameter list */
1389 obj_tlen-=4;
1390
1391 while (intserv_serv_tlen>=4) {
1392 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1393 if (processed == 0)
1394 break;
1395 obj_tlen-=processed;
1396 intserv_serv_tlen-=processed;
1397 obj_tptr+=processed;
1398 }
1399 }
1400 break;
1401 default:
1402 hexdump=TRUE;
1403 }
1404 break;
1405
1406 case RSVP_OBJ_FILTERSPEC:
1407 switch(rsvp_obj_ctype) {
1408 case RSVP_CTYPE_IPV4:
1409 if (obj_tlen < 8)
1410 return-1;
1411 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
1412 indent,
1413 ipaddr_string(ndo, obj_tptr),
1414 EXTRACT_BE_U_2(obj_tptr + 6)));
1415 obj_tlen-=8;
1416 obj_tptr+=8;
1417 break;
1418 case RSVP_CTYPE_IPV6:
1419 if (obj_tlen < 20)
1420 return-1;
1421 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
1422 indent,
1423 ip6addr_string(ndo, obj_tptr),
1424 EXTRACT_BE_U_2(obj_tptr + 18)));
1425 obj_tlen-=20;
1426 obj_tptr+=20;
1427 break;
1428 case RSVP_CTYPE_3:
1429 if (obj_tlen < 20)
1430 return-1;
1431 ND_PRINT((ndo, "%s Source Address: %s, Flow Label: %u",
1432 indent,
1433 ip6addr_string(ndo, obj_tptr),
1434 EXTRACT_BE_U_3(obj_tptr + 17)));
1435 obj_tlen-=20;
1436 obj_tptr+=20;
1437 break;
1438 case RSVP_CTYPE_TUNNEL_IPV6:
1439 if (obj_tlen < 20)
1440 return-1;
1441 ND_PRINT((ndo, "%s Source Address: %s, LSP-ID: 0x%04x",
1442 indent,
1443 ipaddr_string(ndo, obj_tptr),
1444 EXTRACT_BE_U_2(obj_tptr + 18)));
1445 obj_tlen-=20;
1446 obj_tptr+=20;
1447 break;
1448 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1449 if (obj_tlen < 40)
1450 return-1;
1451 ND_PRINT((ndo, "%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1452 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1453 indent,
1454 ip6addr_string(ndo, obj_tptr),
1455 EXTRACT_BE_U_2(obj_tptr + 18),
1456 indent,
1457 ip6addr_string(ndo, obj_tptr+20),
1458 EXTRACT_BE_U_2(obj_tptr + 38)));
1459 obj_tlen-=40;
1460 obj_tptr+=40;
1461 break;
1462 case RSVP_CTYPE_TUNNEL_IPV4:
1463 if (obj_tlen < 8)
1464 return-1;
1465 ND_PRINT((ndo, "%s Source Address: %s, LSP-ID: 0x%04x",
1466 indent,
1467 ipaddr_string(ndo, obj_tptr),
1468 EXTRACT_BE_U_2(obj_tptr + 6)));
1469 obj_tlen-=8;
1470 obj_tptr+=8;
1471 break;
1472 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1473 if (obj_tlen < 16)
1474 return-1;
1475 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1476 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1477 indent,
1478 ipaddr_string(ndo, obj_tptr),
1479 EXTRACT_BE_U_2(obj_tptr + 6),
1480 indent,
1481 ipaddr_string(ndo, obj_tptr+8),
1482 EXTRACT_BE_U_2(obj_tptr + 12)));
1483 obj_tlen-=16;
1484 obj_tptr+=16;
1485 break;
1486 default:
1487 hexdump=TRUE;
1488 }
1489 break;
1490
1491 case RSVP_OBJ_FASTREROUTE:
1492 /* the differences between c-type 1 and 7 are minor */
1493 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1494
1495 switch(rsvp_obj_ctype) {
1496 case RSVP_CTYPE_1: /* new style */
1497 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1498 return-1;
1499 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1500 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1501 indent,
1502 obj_ptr.rsvp_obj_frr->setup_prio,
1503 obj_ptr.rsvp_obj_frr->hold_prio,
1504 obj_ptr.rsvp_obj_frr->hop_limit,
1505 bw.f * 8 / 1000000));
1506 ND_PRINT((ndo, "%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1507 indent,
1508 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1509 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
1510 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_all)));
1511 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1512 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1513 break;
1514
1515 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1516 if (obj_tlen < 16)
1517 return-1;
1518 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1519 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1520 indent,
1521 obj_ptr.rsvp_obj_frr->setup_prio,
1522 obj_ptr.rsvp_obj_frr->hold_prio,
1523 obj_ptr.rsvp_obj_frr->hop_limit,
1524 bw.f * 8 / 1000000));
1525 ND_PRINT((ndo, "%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1526 indent,
1527 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1528 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any)));
1529 obj_tlen-=16;
1530 obj_tptr+=16;
1531 break;
1532
1533 default:
1534 hexdump=TRUE;
1535 }
1536 break;
1537
1538 case RSVP_OBJ_DETOUR:
1539 switch(rsvp_obj_ctype) {
1540 case RSVP_CTYPE_TUNNEL_IPV4:
1541 while(obj_tlen >= 8) {
1542 ND_PRINT((ndo, "%s PLR-ID: %s, Avoid-Node-ID: %s",
1543 indent,
1544 ipaddr_string(ndo, obj_tptr),
1545 ipaddr_string(ndo, obj_tptr + 4)));
1546 obj_tlen-=8;
1547 obj_tptr+=8;
1548 }
1549 break;
1550 default:
1551 hexdump=TRUE;
1552 }
1553 break;
1554
1555 case RSVP_OBJ_CLASSTYPE:
1556 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1557 switch(rsvp_obj_ctype) {
1558 case RSVP_CTYPE_1:
1559 ND_PRINT((ndo, "%s CT: %u",
1560 indent,
1561 EXTRACT_BE_U_4(obj_tptr) & 0x7));
1562 obj_tlen-=4;
1563 obj_tptr+=4;
1564 break;
1565 default:
1566 hexdump=TRUE;
1567 }
1568 break;
1569
1570 case RSVP_OBJ_ERROR_SPEC:
1571 switch(rsvp_obj_ctype) {
1572 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1573 case RSVP_CTYPE_IPV4:
1574 if (obj_tlen < 8)
1575 return-1;
1576 error_code=EXTRACT_U_1(obj_tptr + 5);
1577 error_value=EXTRACT_BE_U_2(obj_tptr + 6);
1578 ND_PRINT((ndo, "%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1579 indent,
1580 ipaddr_string(ndo, obj_tptr),
1581 EXTRACT_U_1(obj_tptr + 4),
1582 indent,
1583 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1584 error_code));
1585 switch (error_code) {
1586 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1587 ND_PRINT((ndo, ", Error Value: %s (%u)",
1588 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1589 error_value));
1590 break;
1591 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1592 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1593 ND_PRINT((ndo, ", Error Value: %s (%u)",
1594 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1595 error_value));
1596 break;
1597 default:
1598 ND_PRINT((ndo, ", Unknown Error Value (%u)", error_value));
1599 break;
1600 }
1601 obj_tlen-=8;
1602 obj_tptr+=8;
1603 break;
1604 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1605 case RSVP_CTYPE_IPV6:
1606 if (obj_tlen < 20)
1607 return-1;
1608 error_code=EXTRACT_U_1(obj_tptr + 17);
1609 error_value=EXTRACT_BE_U_2(obj_tptr + 18);
1610 ND_PRINT((ndo, "%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1611 indent,
1612 ip6addr_string(ndo, obj_tptr),
1613 EXTRACT_U_1(obj_tptr + 16),
1614 indent,
1615 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1616 error_code));
1617
1618 switch (error_code) {
1619 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1620 ND_PRINT((ndo, ", Error Value: %s (%u)",
1621 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1622 error_value));
1623 break;
1624 default:
1625 break;
1626 }
1627 obj_tlen-=20;
1628 obj_tptr+=20;
1629 break;
1630 default:
1631 hexdump=TRUE;
1632 }
1633 break;
1634
1635 case RSVP_OBJ_PROPERTIES:
1636 switch(rsvp_obj_ctype) {
1637 case RSVP_CTYPE_1:
1638 if (obj_tlen < 4)
1639 return-1;
1640 padbytes = EXTRACT_BE_U_2(obj_tptr + 2);
1641 ND_PRINT((ndo, "%s TLV count: %u, padding bytes: %u",
1642 indent,
1643 EXTRACT_BE_U_2(obj_tptr),
1644 padbytes));
1645 obj_tlen-=4;
1646 obj_tptr+=4;
1647 /* loop through as long there is anything longer than the TLV header (2) */
1648 while(obj_tlen >= 2 + padbytes) {
1649 ND_PRINT((ndo, "%s %s TLV (0x%02x), length: %u", /* length includes header */
1650 indent,
1651 tok2str(rsvp_obj_prop_tlv_values,"unknown",EXTRACT_U_1(obj_tptr)),
1652 EXTRACT_U_1(obj_tptr),
1653 EXTRACT_U_1(obj_tptr + 1)));
1654 if (obj_tlen < EXTRACT_U_1((obj_tptr + 1)))
1655 return-1;
1656 if (EXTRACT_U_1(obj_tptr + 1) < 2)
1657 return -1;
1658 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
1659 EXTRACT_U_1(obj_tptr + 1) - 2);
1660 obj_tlen-=EXTRACT_U_1(obj_tptr + 1);
1661 obj_tptr+=EXTRACT_U_1(obj_tptr + 1);
1662 }
1663 break;
1664 default:
1665 hexdump=TRUE;
1666 }
1667 break;
1668
1669 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1670 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1671 case RSVP_OBJ_MESSAGE_ID_LIST:
1672 switch(rsvp_obj_ctype) {
1673 case RSVP_CTYPE_1:
1674 case RSVP_CTYPE_2:
1675 if (obj_tlen < 8)
1676 return-1;
1677 ND_PRINT((ndo, "%s Flags [0x%02x], epoch: %u",
1678 indent,
1679 EXTRACT_U_1(obj_tptr),
1680 EXTRACT_BE_U_3(obj_tptr + 1)));
1681 obj_tlen-=4;
1682 obj_tptr+=4;
1683 /* loop through as long there are no messages left */
1684 while(obj_tlen >= 4) {
1685 ND_PRINT((ndo, "%s Message-ID 0x%08x (%u)",
1686 indent,
1687 EXTRACT_BE_U_4(obj_tptr),
1688 EXTRACT_BE_U_4(obj_tptr)));
1689 obj_tlen-=4;
1690 obj_tptr+=4;
1691 }
1692 break;
1693 default:
1694 hexdump=TRUE;
1695 }
1696 break;
1697
1698 case RSVP_OBJ_INTEGRITY:
1699 switch(rsvp_obj_ctype) {
1700 case RSVP_CTYPE_1:
1701 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1702 return-1;
1703 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1704 ND_PRINT((ndo, "%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1705 indent,
1706 EXTRACT_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
1707 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
1708 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
1709 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
1710 bittok2str(rsvp_obj_integrity_flag_values,
1711 "none",
1712 obj_ptr.rsvp_obj_integrity->flags)));
1713 ND_PRINT((ndo, "%s MD5-sum 0x%08x%08x%08x%08x ",
1714 indent,
1715 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
1716 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
1717 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
1718 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12)));
1719
1720 sigcheck = signature_verify(ndo, pptr, plen,
1721 obj_ptr.rsvp_obj_integrity->digest,
1722 rsvp_clear_checksum,
1723 rsvp_com_header);
1724 ND_PRINT((ndo, " (%s)", tok2str(signature_check_values, "Unknown", sigcheck)));
1725
1726 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1727 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1728 break;
1729 default:
1730 hexdump=TRUE;
1731 }
1732 break;
1733
1734 case RSVP_OBJ_ADMIN_STATUS:
1735 switch(rsvp_obj_ctype) {
1736 case RSVP_CTYPE_1:
1737 if (obj_tlen < 4)
1738 return-1;
1739 ND_PRINT((ndo, "%s Flags [%s]", indent,
1740 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1741 EXTRACT_BE_U_4(obj_tptr))));
1742 obj_tlen-=4;
1743 obj_tptr+=4;
1744 break;
1745 default:
1746 hexdump=TRUE;
1747 }
1748 break;
1749
1750 case RSVP_OBJ_LABEL_SET:
1751 switch(rsvp_obj_ctype) {
1752 case RSVP_CTYPE_1:
1753 if (obj_tlen < 4)
1754 return-1;
1755 action = (EXTRACT_BE_U_2(obj_tptr)>>8);
1756
1757 ND_PRINT((ndo, "%s Action: %s (%u), Label type: %u", indent,
1758 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1759 action, ((EXTRACT_BE_U_4(obj_tptr) & 0x7F))));
1760
1761 switch (action) {
1762 case LABEL_SET_INCLUSIVE_RANGE:
1763 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1764
1765 /* only a couple of subchannels are expected */
1766 if (obj_tlen < 12)
1767 return -1;
1768 ND_PRINT((ndo, "%s Start range: %u, End range: %u", indent,
1769 EXTRACT_BE_U_4(obj_tptr + 4),
1770 EXTRACT_BE_U_4(obj_tptr + 8)));
1771 obj_tlen-=12;
1772 obj_tptr+=12;
1773 break;
1774
1775 default:
1776 obj_tlen-=4;
1777 obj_tptr+=4;
1778 subchannel = 1;
1779 while(obj_tlen >= 4 ) {
1780 ND_PRINT((ndo, "%s Subchannel #%u: %u", indent, subchannel,
1781 EXTRACT_BE_U_4(obj_tptr)));
1782 obj_tptr+=4;
1783 obj_tlen-=4;
1784 subchannel++;
1785 }
1786 break;
1787 }
1788 break;
1789 default:
1790 hexdump=TRUE;
1791 }
1792 break;
1793
1794 case RSVP_OBJ_S2L:
1795 switch (rsvp_obj_ctype) {
1796 case RSVP_CTYPE_IPV4:
1797 if (obj_tlen < 4)
1798 return-1;
1799 ND_PRINT((ndo, "%s Sub-LSP destination address: %s",
1800 indent, ipaddr_string(ndo, obj_tptr)));
1801
1802 obj_tlen-=4;
1803 obj_tptr+=4;
1804 break;
1805 case RSVP_CTYPE_IPV6:
1806 if (obj_tlen < 16)
1807 return-1;
1808 ND_PRINT((ndo, "%s Sub-LSP destination address: %s",
1809 indent, ip6addr_string(ndo, obj_tptr)));
1810
1811 obj_tlen-=16;
1812 obj_tptr+=16;
1813 break;
1814 default:
1815 hexdump=TRUE;
1816 }
1817 break;
1818
1819 /*
1820 * FIXME those are the defined objects that lack a decoder
1821 * you are welcome to contribute code ;-)
1822 */
1823
1824 case RSVP_OBJ_SCOPE:
1825 case RSVP_OBJ_POLICY_DATA:
1826 case RSVP_OBJ_ACCEPT_LABEL_SET:
1827 case RSVP_OBJ_PROTECTION:
1828 default:
1829 if (ndo->ndo_vflag <= 1)
1830 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1831 break;
1832 }
1833 /* do we also want to see a hex dump ? */
1834 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1835 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1836 rsvp_obj_len - sizeof(struct rsvp_object_header));
1837
1838 tptr+=rsvp_obj_len;
1839 tlen-=rsvp_obj_len;
1840 }
1841 return 0;
1842 invalid:
1843 ND_PRINT((ndo, "%s", istr));
1844 return -1;
1845 trunc:
1846 ND_PRINT((ndo, "\n\t\t"));
1847 ND_PRINT((ndo, "%s", tstr));
1848 return -1;
1849 }
1850
1851 void
1852 rsvp_print(netdissect_options *ndo,
1853 const u_char *pptr, u_int len)
1854 {
1855 const struct rsvp_common_header *rsvp_com_header;
1856 const u_char *tptr;
1857 u_short plen, tlen;
1858
1859 tptr=pptr;
1860
1861 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1862 ND_TCHECK(*rsvp_com_header);
1863
1864 /*
1865 * Sanity checking of the header.
1866 */
1867 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1868 ND_PRINT((ndo, "ERROR: RSVP version %u packet not supported",
1869 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags)));
1870 return;
1871 }
1872
1873 /* in non-verbose mode just lets print the basic Message Type*/
1874 if (ndo->ndo_vflag < 1) {
1875 ND_PRINT((ndo, "RSVPv%u %s Message, length: %u",
1876 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1877 tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
1878 len));
1879 return;
1880 }
1881
1882 /* ok they seem to want to know everything - lets fully decode it */
1883
1884 plen = tlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1885
1886 ND_PRINT((ndo, "\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1887 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1888 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1889 rsvp_com_header->msg_type,
1890 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1891 tlen,
1892 rsvp_com_header->ttl,
1893 EXTRACT_BE_U_2(rsvp_com_header->checksum)));
1894
1895 if (tlen < sizeof(struct rsvp_common_header)) {
1896 ND_PRINT((ndo, "ERROR: common header too short %u < %lu", tlen,
1897 (unsigned long)sizeof(struct rsvp_common_header)));
1898 return;
1899 }
1900
1901 tptr+=sizeof(struct rsvp_common_header);
1902 tlen-=sizeof(struct rsvp_common_header);
1903
1904 switch(rsvp_com_header->msg_type) {
1905
1906 case RSVP_MSGTYPE_BUNDLE:
1907 /*
1908 * Process each submessage in the bundle message.
1909 * Bundle messages may not contain bundle submessages, so we don't
1910 * need to handle bundle submessages specially.
1911 */
1912 while(tlen > 0) {
1913 const u_char *subpptr=tptr, *subtptr;
1914 u_short subplen, subtlen;
1915
1916 subtptr=subpptr;
1917
1918 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1919 ND_TCHECK(*rsvp_com_header);
1920
1921 /*
1922 * Sanity checking of the header.
1923 */
1924 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1925 ND_PRINT((ndo, "ERROR: RSVP version %u packet not supported",
1926 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags)));
1927 return;
1928 }
1929
1930 subplen = subtlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1931
1932 ND_PRINT((ndo, "\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1933 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1934 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1935 rsvp_com_header->msg_type,
1936 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1937 subtlen,
1938 rsvp_com_header->ttl,
1939 EXTRACT_BE_U_2(rsvp_com_header->checksum)));
1940
1941 if (subtlen < sizeof(struct rsvp_common_header)) {
1942 ND_PRINT((ndo, "ERROR: common header too short %u < %lu", subtlen,
1943 (unsigned long)sizeof(struct rsvp_common_header)));
1944 return;
1945 }
1946
1947 if (tlen < subtlen) {
1948 ND_PRINT((ndo, "ERROR: common header too large %u > %u", subtlen,
1949 tlen));
1950 return;
1951 }
1952
1953 subtptr+=sizeof(struct rsvp_common_header);
1954 subtlen-=sizeof(struct rsvp_common_header);
1955
1956 /*
1957 * Print all objects in the submessage.
1958 */
1959 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
1960 return;
1961
1962 tptr+=subtlen+sizeof(struct rsvp_common_header);
1963 tlen-=subtlen+sizeof(struct rsvp_common_header);
1964 }
1965
1966 break;
1967
1968 case RSVP_MSGTYPE_PATH:
1969 case RSVP_MSGTYPE_RESV:
1970 case RSVP_MSGTYPE_PATHERR:
1971 case RSVP_MSGTYPE_RESVERR:
1972 case RSVP_MSGTYPE_PATHTEAR:
1973 case RSVP_MSGTYPE_RESVTEAR:
1974 case RSVP_MSGTYPE_RESVCONF:
1975 case RSVP_MSGTYPE_HELLO_OLD:
1976 case RSVP_MSGTYPE_HELLO:
1977 case RSVP_MSGTYPE_ACK:
1978 case RSVP_MSGTYPE_SREFRESH:
1979 /*
1980 * Print all objects in the message.
1981 */
1982 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
1983 return;
1984 break;
1985
1986 default:
1987 print_unknown_data(ndo, tptr, "\n\t ", tlen);
1988 break;
1989 }
1990
1991 return;
1992 trunc:
1993 ND_PRINT((ndo, "\n\t\t"));
1994 ND_PRINT((ndo, "%s", tstr));
1995 }
[mirror] the TCPdump network dissector