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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 /* specification: RFC 2205 */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include "netdissect-stdinc.h"
27
28 #include "netdissect.h"
29 #include "extract.h"
30 #include "addrtoname.h"
31 #include "ethertype.h"
32 #include "gmpls.h"
33 #include "af.h"
34 #include "signature.h"
35
36
37 /*
38 * RFC 2205 common header
39 *
40 * 0 1 2 3
41 * +-------------+-------------+-------------+-------------+
42 * | Vers | Flags| Msg Type | RSVP Checksum |
43 * +-------------+-------------+-------------+-------------+
44 * | Send_TTL | (Reserved) | RSVP Length |
45 * +-------------+-------------+-------------+-------------+
46 *
47 */
48
49 struct rsvp_common_header {
50 nd_uint8_t version_flags;
51 nd_uint8_t msg_type;
52 nd_uint16_t checksum;
53 nd_uint8_t ttl;
54 nd_byte reserved[1];
55 nd_uint16_t length;
56 };
57
58 /*
59 * RFC2205 object header
60 *
61 *
62 * 0 1 2 3
63 * +-------------+-------------+-------------+-------------+
64 * | Length (bytes) | Class-Num | C-Type |
65 * +-------------+-------------+-------------+-------------+
66 * | |
67 * // (Object contents) //
68 * | |
69 * +-------------+-------------+-------------+-------------+
70 */
71
72 struct rsvp_object_header {
73 nd_uint16_t length;
74 nd_uint8_t class_num;
75 nd_uint8_t ctype;
76 };
77
78 #define RSVP_VERSION 1
79 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
80 #define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f)
81
82 #define RSVP_MSGTYPE_PATH 1
83 #define RSVP_MSGTYPE_RESV 2
84 #define RSVP_MSGTYPE_PATHERR 3
85 #define RSVP_MSGTYPE_RESVERR 4
86 #define RSVP_MSGTYPE_PATHTEAR 5
87 #define RSVP_MSGTYPE_RESVTEAR 6
88 #define RSVP_MSGTYPE_RESVCONF 7
89 #define RSVP_MSGTYPE_BUNDLE 12
90 #define RSVP_MSGTYPE_ACK 13
91 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
92 #define RSVP_MSGTYPE_SREFRESH 15
93 #define RSVP_MSGTYPE_HELLO 20
94
95 static const struct tok rsvp_msg_type_values[] = {
96 { RSVP_MSGTYPE_PATH, "Path" },
97 { RSVP_MSGTYPE_RESV, "Resv" },
98 { RSVP_MSGTYPE_PATHERR, "PathErr" },
99 { RSVP_MSGTYPE_RESVERR, "ResvErr" },
100 { RSVP_MSGTYPE_PATHTEAR, "PathTear" },
101 { RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
102 { RSVP_MSGTYPE_RESVCONF, "ResvConf" },
103 { RSVP_MSGTYPE_BUNDLE, "Bundle" },
104 { RSVP_MSGTYPE_ACK, "Acknowledgement" },
105 { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
106 { RSVP_MSGTYPE_SREFRESH, "Refresh" },
107 { RSVP_MSGTYPE_HELLO, "Hello" },
108 { 0, NULL}
109 };
110
111 static const struct tok rsvp_header_flag_values[] = {
112 { 0x01, "Refresh reduction capable" }, /* rfc2961 */
113 { 0, NULL}
114 };
115
116 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
117 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
118 #define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
119 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
120 #define RSVP_OBJ_ERROR_SPEC 6
121 #define RSVP_OBJ_SCOPE 7
122 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
123 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
124 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
125 #define RSVP_OBJ_SENDER_TEMPLATE 11
126 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
127 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
128 #define RSVP_OBJ_POLICY_DATA 14
129 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
130 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
131 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
132 #define RSVP_OBJ_ERO 20 /* rfc3209 */
133 #define RSVP_OBJ_RRO 21 /* rfc3209 */
134 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
135 #define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */
136 #define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */
137 #define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */
138 #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
139 #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
140 #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
141 #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
142 #define RSVP_OBJ_S2L 50 /* rfc4875 */
143 #define RSVP_OBJ_DETOUR 63 /* rfc4090 */
144 #define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
145 #define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
146 #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
147 #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
148 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
149 #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
150 #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
151 #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
152 #define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */
153 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
154 #define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
155 #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
156 #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
157
158 static const struct tok rsvp_obj_values[] = {
159 { RSVP_OBJ_SESSION, "Session" },
160 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
161 { RSVP_OBJ_INTEGRITY, "Integrity" },
162 { RSVP_OBJ_TIME_VALUES, "Time Values" },
163 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
164 { RSVP_OBJ_SCOPE, "Scope" },
165 { RSVP_OBJ_STYLE, "Style" },
166 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
167 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
168 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
169 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
170 { RSVP_OBJ_ADSPEC, "Adspec" },
171 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
172 { RSVP_OBJ_CONFIRM, "Confirm" },
173 { RSVP_OBJ_LABEL, "Label" },
174 { RSVP_OBJ_LABEL_REQ, "Label Request" },
175 { RSVP_OBJ_ERO, "ERO" },
176 { RSVP_OBJ_RRO, "RRO" },
177 { RSVP_OBJ_HELLO, "Hello" },
178 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
179 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
180 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
181 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
182 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
183 { RSVP_OBJ_LABEL_SET, "Label Set" },
184 { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
185 { RSVP_OBJ_DETOUR, "Detour" },
186 { RSVP_OBJ_CLASSTYPE, "Class Type" },
187 { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" },
188 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
189 { RSVP_OBJ_PROPERTIES, "Properties" },
190 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
191 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
192 { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" },
193 { RSVP_OBJ_CALL_ID, "Call-ID" },
194 { RSVP_OBJ_CALL_OPS, "Call Capability" },
195 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
196 { RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
197 { RSVP_OBJ_PROTECTION, "Protection" },
198 { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
199 { RSVP_OBJ_S2L, "Sub-LSP to LSP" },
200 { 0, NULL}
201 };
202
203 #define RSVP_CTYPE_IPV4 1
204 #define RSVP_CTYPE_IPV6 2
205 #define RSVP_CTYPE_TUNNEL_IPV4 7
206 #define RSVP_CTYPE_TUNNEL_IPV6 8
207 #define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */
208 #define RSVP_CTYPE_1 1
209 #define RSVP_CTYPE_2 2
210 #define RSVP_CTYPE_3 3
211 #define RSVP_CTYPE_4 4
212 #define RSVP_CTYPE_12 12
213 #define RSVP_CTYPE_13 13
214 #define RSVP_CTYPE_14 14
215
216 /*
217 * the ctypes are not globally unique so for
218 * translating it to strings we build a table based
219 * on objects offsetted by the ctype
220 */
221
222 static const struct tok rsvp_ctype_values[] = {
223 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
224 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
225 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
226 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
227 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
228 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
229 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
230 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
231 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
232 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
233 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
234 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
235 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
236 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
237 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
238 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
239 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
240 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
241 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
242 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
243 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
244 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
245 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" },
246 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" },
247 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" },
248 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
249 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
250 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
251 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
252 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
253 { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
254 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" },
255 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" },
256 { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
257 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
258 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
259 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
260 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
261 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
262 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
263 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
264 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
265 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
266 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
267 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
268 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
269 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
270 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
271 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
272 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
273 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
274 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
275 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
276 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
277 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
278 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
279 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
280 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
281 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
282 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
283 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
284 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
285 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
286 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
287 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
288 { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" },
289 { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
290 { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" },
291 { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" },
292 { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" },
293 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" },
294 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" },
295 { 0, NULL}
296 };
297
298 struct rsvp_obj_integrity_t {
299 uint8_t flags;
300 uint8_t res;
301 uint8_t key_id[6];
302 uint8_t sequence[8];
303 uint8_t digest[16];
304 };
305
306 static const struct tok rsvp_obj_integrity_flag_values[] = {
307 { 0x80, "Handshake" },
308 { 0, NULL}
309 };
310
311 struct rsvp_obj_frr_t {
312 uint8_t setup_prio;
313 uint8_t hold_prio;
314 uint8_t hop_limit;
315 uint8_t flags;
316 uint8_t bandwidth[4];
317 uint8_t include_any[4];
318 uint8_t exclude_any[4];
319 uint8_t include_all[4];
320 };
321
322
323 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
324 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
325
326 #define RSVP_OBJ_XRO_RES 0
327 #define RSVP_OBJ_XRO_IPV4 1
328 #define RSVP_OBJ_XRO_IPV6 2
329 #define RSVP_OBJ_XRO_LABEL 3
330 #define RSVP_OBJ_XRO_ASN 32
331 #define RSVP_OBJ_XRO_MPLS 64
332
333 static const struct tok rsvp_obj_xro_values[] = {
334 { RSVP_OBJ_XRO_RES, "Reserved" },
335 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
336 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
337 { RSVP_OBJ_XRO_LABEL, "Label" },
338 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
339 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
340 { 0, NULL}
341 };
342
343 /* RFC4090 */
344 static const struct tok rsvp_obj_rro_flag_values[] = {
345 { 0x01, "Local protection available" },
346 { 0x02, "Local protection in use" },
347 { 0x04, "Bandwidth protection" },
348 { 0x08, "Node protection" },
349 { 0, NULL}
350 };
351
352 /* RFC3209 */
353 static const struct tok rsvp_obj_rro_label_flag_values[] = {
354 { 0x01, "Global" },
355 { 0, NULL}
356 };
357
358 static const struct tok rsvp_resstyle_values[] = {
359 { 17, "Wildcard Filter" },
360 { 10, "Fixed Filter" },
361 { 18, "Shared Explicit" },
362 { 0, NULL}
363 };
364
365 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
366 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
367
368 static const struct tok rsvp_intserv_service_type_values[] = {
369 { 1, "Default/Global Information" },
370 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
371 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
372 { 0, NULL}
373 };
374
375 static const struct tok rsvp_intserv_parameter_id_values[] = {
376 { 4, "IS hop cnt" },
377 { 6, "Path b/w estimate" },
378 { 8, "Minimum path latency" },
379 { 10, "Composed MTU" },
380 { 127, "Token Bucket TSpec" },
381 { 130, "Guaranteed Service RSpec" },
382 { 133, "End-to-end composed value for C" },
383 { 134, "End-to-end composed value for D" },
384 { 135, "Since-last-reshaping point composed C" },
385 { 136, "Since-last-reshaping point composed D" },
386 { 0, NULL}
387 };
388
389 static const struct tok rsvp_session_attribute_flag_values[] = {
390 { 0x01, "Local Protection" },
391 { 0x02, "Label Recording" },
392 { 0x04, "SE Style" },
393 { 0x08, "Bandwidth protection" }, /* RFC4090 */
394 { 0x10, "Node protection" }, /* RFC4090 */
395 { 0, NULL}
396 };
397
398 static const struct tok rsvp_obj_prop_tlv_values[] = {
399 { 0x01, "Cos" },
400 { 0x02, "Metric 1" },
401 { 0x04, "Metric 2" },
402 { 0x08, "CCC Status" },
403 { 0x10, "Path Type" },
404 { 0, NULL}
405 };
406
407 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
408 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
409 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28
410 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125
411
412 static const struct tok rsvp_obj_error_code_values[] = {
413 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
414 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
415 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
416 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" },
417 { 0, NULL}
418 };
419
420 static const struct tok rsvp_obj_error_code_routing_values[] = {
421 { 1, "Bad EXPLICIT_ROUTE object" },
422 { 2, "Bad strict node" },
423 { 3, "Bad loose node" },
424 { 4, "Bad initial subobject" },
425 { 5, "No route available toward destination" },
426 { 6, "Unacceptable label value" },
427 { 7, "RRO indicated routing loops" },
428 { 8, "non-RSVP-capable router in the path" },
429 { 9, "MPLS label allocation failure" },
430 { 10, "Unsupported L3PID" },
431 { 0, NULL}
432 };
433
434 static const struct tok rsvp_obj_error_code_diffserv_te_values[] = {
435 { 1, "Unexpected CT object" },
436 { 2, "Unsupported CT" },
437 { 3, "Invalid CT value" },
438 { 4, "CT/setup priority do not form a configured TE-Class" },
439 { 5, "CT/holding priority do not form a configured TE-Class" },
440 { 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" },
441 { 7, "Inconsistency between signaled PSC and signaled CT" },
442 { 8, "Inconsistency between signaled PHBs and signaled CT" },
443 { 0, NULL}
444 };
445
446 /* rfc3473 / rfc 3471 */
447 static const struct tok rsvp_obj_admin_status_flag_values[] = {
448 { 0x80000000, "Reflect" },
449 { 0x00000004, "Testing" },
450 { 0x00000002, "Admin-down" },
451 { 0x00000001, "Delete-in-progress" },
452 { 0, NULL}
453 };
454
455 /* label set actions - rfc3471 */
456 #define LABEL_SET_INCLUSIVE_LIST 0
457 #define LABEL_SET_EXCLUSIVE_LIST 1
458 #define LABEL_SET_INCLUSIVE_RANGE 2
459 #define LABEL_SET_EXCLUSIVE_RANGE 3
460
461 static const struct tok rsvp_obj_label_set_action_values[] = {
462 { LABEL_SET_INCLUSIVE_LIST, "Inclusive list" },
463 { LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" },
464 { LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" },
465 { LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" },
466 { 0, NULL}
467 };
468
469 /* OIF RSVP extensions UNI 1.0 Signaling, release 2 */
470 #define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1
471 #define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2
472 #define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3
473 #define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4
474 #define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5
475
476 static const struct tok rsvp_obj_generalized_uni_values[] = {
477 { RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" },
478 { RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" },
479 { RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" },
480 { RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" },
481 { RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" },
482 { 0, NULL}
483 };
484
485 /*
486 * this is a dissector for all the intserv defined
487 * specs as defined per rfc2215
488 * it is called from various rsvp objects;
489 * returns the amount of bytes being processed
490 */
491 static u_int
492 rsvp_intserv_print(netdissect_options *ndo,
493 const u_char *tptr, u_short obj_tlen)
494 {
495 u_int parameter_id,parameter_length;
496 union {
497 float f;
498 uint32_t i;
499 } bw;
500
501 if (obj_tlen < 4)
502 return 0;
503 ND_TCHECK_1(tptr);
504 parameter_id = EXTRACT_U_1(tptr);
505 ND_TCHECK_2(tptr + 2);
506 parameter_length = EXTRACT_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
507
508 ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
509 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
510 parameter_id,
511 parameter_length,
512 EXTRACT_U_1(tptr + 1));
513
514 if (obj_tlen < parameter_length+4)
515 return 0;
516 switch(parameter_id) { /* parameter_id */
517
518 case 4:
519 /*
520 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
521 * | 4 (e) | (f) | 1 (g) |
522 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
523 * | IS hop cnt (32-bit unsigned integer) |
524 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
525 */
526 if (parameter_length == 4) {
527 ND_TCHECK_4(tptr + 4);
528 ND_PRINT("\n\t\tIS hop count: %u", EXTRACT_BE_U_4(tptr + 4));
529 }
530 break;
531
532 case 6:
533 /*
534 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
535 * | 6 (h) | (i) | 1 (j) |
536 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
537 * | Path b/w estimate (32-bit IEEE floating point number) |
538 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
539 */
540 if (parameter_length == 4) {
541 ND_TCHECK_4(tptr + 4);
542 bw.i = EXTRACT_BE_U_4(tptr + 4);
543 ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000);
544 }
545 break;
546
547 case 8:
548 /*
549 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
550 * | 8 (k) | (l) | 1 (m) |
551 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
552 * | Minimum path latency (32-bit integer) |
553 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
554 */
555 if (parameter_length == 4) {
556 ND_TCHECK_4(tptr + 4);
557 ND_PRINT("\n\t\tMinimum path latency: ");
558 if (EXTRACT_BE_U_4(tptr + 4) == 0xffffffff)
559 ND_PRINT("don't care");
560 else
561 ND_PRINT("%u", EXTRACT_BE_U_4(tptr + 4));
562 }
563 break;
564
565 case 10:
566
567 /*
568 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
569 * | 10 (n) | (o) | 1 (p) |
570 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
571 * | Composed MTU (32-bit unsigned integer) |
572 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
573 */
574 if (parameter_length == 4) {
575 ND_TCHECK_4(tptr + 4);
576 ND_PRINT("\n\t\tComposed MTU: %u bytes", EXTRACT_BE_U_4(tptr + 4));
577 }
578 break;
579 case 127:
580 /*
581 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
582 * | 127 (e) | 0 (f) | 5 (g) |
583 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
584 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
585 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
586 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
587 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
588 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
589 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
590 * | Minimum Policed Unit [m] (32-bit integer) |
591 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
592 * | Maximum Packet Size [M] (32-bit integer) |
593 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
594 */
595
596 if (parameter_length == 20) {
597 ND_TCHECK_LEN(tptr + 4, 20);
598 bw.i = EXTRACT_BE_U_4(tptr + 4);
599 ND_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000);
600 bw.i = EXTRACT_BE_U_4(tptr + 8);
601 ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
602 bw.i = EXTRACT_BE_U_4(tptr + 12);
603 ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000);
604 ND_PRINT("\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_BE_U_4(tptr + 16));
605 ND_PRINT("\n\t\tMaximum Packet Size: %u bytes", EXTRACT_BE_U_4(tptr + 20));
606 }
607 break;
608
609 case 130:
610 /*
611 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
612 * | 130 (h) | 0 (i) | 2 (j) |
613 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
614 * | Rate [R] (32-bit IEEE floating point number) |
615 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
616 * | Slack Term [S] (32-bit integer) |
617 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
618 */
619
620 if (parameter_length == 8) {
621 ND_TCHECK_8(tptr + 4);
622 bw.i = EXTRACT_BE_U_4(tptr + 4);
623 ND_PRINT("\n\t\tRate: %.10g Mbps", bw.f / 125000);
624 ND_PRINT("\n\t\tSlack Term: %u", EXTRACT_BE_U_4(tptr + 8));
625 }
626 break;
627
628 case 133:
629 case 134:
630 case 135:
631 case 136:
632 if (parameter_length == 4) {
633 ND_TCHECK_4(tptr + 4);
634 ND_PRINT("\n\t\tValue: %u", EXTRACT_BE_U_4(tptr + 4));
635 }
636 break;
637
638 default:
639 if (ndo->ndo_vflag <= 1)
640 print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
641 }
642 return (parameter_length+4); /* header length 4 bytes */
643
644 trunc:
645 nd_print_trunc(ndo);
646 return 0;
647 }
648
649 /*
650 * Clear checksum prior to signature verification.
651 */
652 static void
653 rsvp_clear_checksum(void *header)
654 {
655 struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
656
657 rsvp_com_header->checksum[0] = 0;
658 rsvp_com_header->checksum[1] = 0;
659 }
660
661 static int
662 rsvp_obj_print(netdissect_options *ndo,
663 const u_char *pptr, u_int plen, const u_char *tptr,
664 const char *indent, u_int tlen,
665 const struct rsvp_common_header *rsvp_com_header)
666 {
667 const struct rsvp_object_header *rsvp_obj_header;
668 const u_char *obj_tptr;
669 union {
670 const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
671 const struct rsvp_obj_frr_t *rsvp_obj_frr;
672 } obj_ptr;
673
674 u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num,obj_tlen;
675 u_int intserv_serv_tlen;
676 int hexdump;
677 u_int processed,padbytes,error_code,error_value,i,sigcheck;
678 union {
679 float f;
680 uint32_t i;
681 } bw;
682 uint8_t namelen;
683
684 u_int action, subchannel;
685
686 while(tlen>=sizeof(struct rsvp_object_header)) {
687 /* did we capture enough for fully decoding the object header ? */
688 ND_TCHECK_LEN(tptr, sizeof(struct rsvp_object_header));
689
690 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
691 rsvp_obj_len=EXTRACT_BE_U_2(rsvp_obj_header->length);
692 rsvp_obj_ctype=EXTRACT_U_1(rsvp_obj_header->ctype);
693
694 if(rsvp_obj_len % 4) {
695 ND_PRINT("%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len);
696 return -1;
697 }
698 if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
699 ND_PRINT("%sERROR: object header too short %u < %lu", indent, rsvp_obj_len,
700 (unsigned long)sizeof(struct rsvp_object_header));
701 return -1;
702 }
703
704 rsvp_obj_class_num = EXTRACT_U_1(rsvp_obj_header->class_num);
705 ND_PRINT("%s%s Object (%u) Flags: [%s",
706 indent,
707 tok2str(rsvp_obj_values,
708 "Unknown",
709 rsvp_obj_class_num),
710 rsvp_obj_class_num,
711 (rsvp_obj_class_num & 0x80) ?
712 ((rsvp_obj_class_num & 0x40) ? "ignore and forward" :
713 "ignore silently") :
714 "reject");
715
716 ND_PRINT(" if unknown], Class-Type: %s (%u), length: %u",
717 tok2str(rsvp_ctype_values,
718 "Unknown",
719 (rsvp_obj_class_num<<8)+rsvp_obj_ctype),
720 rsvp_obj_ctype,
721 rsvp_obj_len);
722
723 if(tlen < rsvp_obj_len) {
724 ND_PRINT("%sERROR: object goes past end of objects TLV", indent);
725 return -1;
726 }
727
728 obj_tptr=tptr+sizeof(struct rsvp_object_header);
729 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
730
731 /* did we capture enough for fully decoding the object ? */
732 if (!ND_TTEST_LEN(tptr, rsvp_obj_len))
733 return -1;
734 hexdump=FALSE;
735
736 switch(rsvp_obj_class_num) {
737 case RSVP_OBJ_SESSION:
738 switch(rsvp_obj_ctype) {
739 case RSVP_CTYPE_IPV4:
740 if (obj_tlen < 8)
741 return -1;
742 ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
743 indent,
744 ipaddr_string(ndo, obj_tptr),
745 EXTRACT_U_1(obj_tptr + sizeof(nd_ipv4)));
746 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
747 indent,
748 EXTRACT_U_1((obj_tptr + 5)),
749 EXTRACT_BE_U_2(obj_tptr + 6));
750 obj_tlen-=8;
751 obj_tptr+=8;
752 break;
753 case RSVP_CTYPE_IPV6:
754 if (obj_tlen < 20)
755 return -1;
756 ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
757 indent,
758 ip6addr_string(ndo, obj_tptr),
759 EXTRACT_U_1(obj_tptr + sizeof(nd_ipv6)));
760 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
761 indent,
762 EXTRACT_U_1((obj_tptr + sizeof(nd_ipv6) + 1)),
763 EXTRACT_BE_U_2(obj_tptr + sizeof(nd_ipv6) + 2));
764 obj_tlen-=20;
765 obj_tptr+=20;
766 break;
767
768 case RSVP_CTYPE_TUNNEL_IPV6:
769 if (obj_tlen < 36)
770 return -1;
771 ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
772 indent,
773 ip6addr_string(ndo, obj_tptr),
774 EXTRACT_BE_U_2(obj_tptr + 18),
775 ip6addr_string(ndo, obj_tptr + 20));
776 obj_tlen-=36;
777 obj_tptr+=36;
778 break;
779
780 case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
781 if (obj_tlen < 26)
782 return -1;
783 ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
784 indent,
785 EXTRACT_BE_U_4(obj_tptr),
786 EXTRACT_BE_U_2(obj_tptr + 6),
787 ip6addr_string(ndo, obj_tptr + 8));
788 obj_tlen-=26;
789 obj_tptr+=26;
790 break;
791 case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
792 if (obj_tlen < 12)
793 return -1;
794 ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
795 indent,
796 ipaddr_string(ndo, obj_tptr),
797 EXTRACT_BE_U_2(obj_tptr + 6),
798 ipaddr_string(ndo, obj_tptr + 8));
799 obj_tlen-=12;
800 obj_tptr+=12;
801 break;
802 case RSVP_CTYPE_TUNNEL_IPV4:
803 case RSVP_CTYPE_UNI_IPV4:
804 if (obj_tlen < 12)
805 return -1;
806 ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
807 indent,
808 ipaddr_string(ndo, obj_tptr),
809 EXTRACT_BE_U_2(obj_tptr + 6),
810 ipaddr_string(ndo, obj_tptr + 8));
811 obj_tlen-=12;
812 obj_tptr+=12;
813 break;
814 default:
815 hexdump=TRUE;
816 }
817 break;
818
819 case RSVP_OBJ_CONFIRM:
820 switch(rsvp_obj_ctype) {
821 case RSVP_CTYPE_IPV4:
822 if (obj_tlen < sizeof(nd_ipv4))
823 return -1;
824 ND_PRINT("%s IPv4 Receiver Address: %s",
825 indent,
826 ipaddr_string(ndo, obj_tptr));
827 obj_tlen-=sizeof(nd_ipv4);
828 obj_tptr+=sizeof(nd_ipv4);
829 break;
830 case RSVP_CTYPE_IPV6:
831 if (obj_tlen < sizeof(nd_ipv6))
832 return -1;
833 ND_PRINT("%s IPv6 Receiver Address: %s",
834 indent,
835 ip6addr_string(ndo, obj_tptr));
836 obj_tlen-=sizeof(nd_ipv6);
837 obj_tptr+=sizeof(nd_ipv6);
838 break;
839 default:
840 hexdump=TRUE;
841 }
842 break;
843
844 case RSVP_OBJ_NOTIFY_REQ:
845 switch(rsvp_obj_ctype) {
846 case RSVP_CTYPE_IPV4:
847 if (obj_tlen < sizeof(nd_ipv4))
848 return -1;
849 ND_PRINT("%s IPv4 Notify Node Address: %s",
850 indent,
851 ipaddr_string(ndo, obj_tptr));
852 obj_tlen-=sizeof(nd_ipv4);
853 obj_tptr+=sizeof(nd_ipv4);
854 break;
855 case RSVP_CTYPE_IPV6:
856 if (obj_tlen < sizeof(nd_ipv6))
857 return-1;
858 ND_PRINT("%s IPv6 Notify Node Address: %s",
859 indent,
860 ip6addr_string(ndo, obj_tptr));
861 obj_tlen-=sizeof(nd_ipv6);
862 obj_tptr+=sizeof(nd_ipv6);
863 break;
864 default:
865 hexdump=TRUE;
866 }
867 break;
868
869 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
870 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
871 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
872 case RSVP_OBJ_LABEL:
873 switch(rsvp_obj_ctype) {
874 case RSVP_CTYPE_1:
875 while(obj_tlen >= 4 ) {
876 ND_PRINT("%s Label: %u", indent, EXTRACT_BE_U_4(obj_tptr));
877 obj_tlen-=4;
878 obj_tptr+=4;
879 }
880 break;
881 case RSVP_CTYPE_2:
882 if (obj_tlen < 4)
883 return-1;
884 ND_PRINT("%s Generalized Label: %u",
885 indent,
886 EXTRACT_BE_U_4(obj_tptr));
887 obj_tlen-=4;
888 obj_tptr+=4;
889 break;
890 case RSVP_CTYPE_3:
891 if (obj_tlen < 12)
892 return-1;
893 ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
894 indent,
895 EXTRACT_BE_U_4(obj_tptr),
896 indent,
897 EXTRACT_BE_U_4(obj_tptr + 4),
898 EXTRACT_BE_U_4(obj_tptr + 8));
899 obj_tlen-=12;
900 obj_tptr+=12;
901 break;
902 default:
903 hexdump=TRUE;
904 }
905 break;
906
907 case RSVP_OBJ_STYLE:
908 switch(rsvp_obj_ctype) {
909 case RSVP_CTYPE_1:
910 if (obj_tlen < 4)
911 return-1;
912 ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]",
913 indent,
914 tok2str(rsvp_resstyle_values,
915 "Unknown",
916 EXTRACT_BE_U_3(obj_tptr + 1)),
917 EXTRACT_U_1(obj_tptr));
918 obj_tlen-=4;
919 obj_tptr+=4;
920 break;
921 default:
922 hexdump=TRUE;
923 }
924 break;
925
926 case RSVP_OBJ_SENDER_TEMPLATE:
927 switch(rsvp_obj_ctype) {
928 case RSVP_CTYPE_IPV4:
929 if (obj_tlen < 8)
930 return-1;
931 ND_PRINT("%s Source Address: %s, Source Port: %u",
932 indent,
933 ipaddr_string(ndo, obj_tptr),
934 EXTRACT_BE_U_2(obj_tptr + 6));
935 obj_tlen-=8;
936 obj_tptr+=8;
937 break;
938 case RSVP_CTYPE_IPV6:
939 if (obj_tlen < 20)
940 return-1;
941 ND_PRINT("%s Source Address: %s, Source Port: %u",
942 indent,
943 ip6addr_string(ndo, obj_tptr),
944 EXTRACT_BE_U_2(obj_tptr + 18));
945 obj_tlen-=20;
946 obj_tptr+=20;
947 break;
948 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
949 if (obj_tlen < 40)
950 return-1;
951 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
952 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
953 indent,
954 ip6addr_string(ndo, obj_tptr),
955 EXTRACT_BE_U_2(obj_tptr + 18),
956 indent,
957 ip6addr_string(ndo, obj_tptr+20),
958 EXTRACT_BE_U_2(obj_tptr + 38));
959 obj_tlen-=40;
960 obj_tptr+=40;
961 break;
962 case RSVP_CTYPE_TUNNEL_IPV4:
963 if (obj_tlen < 8)
964 return-1;
965 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
966 indent,
967 ipaddr_string(ndo, obj_tptr),
968 EXTRACT_BE_U_2(obj_tptr + 6));
969 obj_tlen-=8;
970 obj_tptr+=8;
971 break;
972 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
973 if (obj_tlen < 16)
974 return-1;
975 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
976 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
977 indent,
978 ipaddr_string(ndo, obj_tptr),
979 EXTRACT_BE_U_2(obj_tptr + 6),
980 indent,
981 ipaddr_string(ndo, obj_tptr+8),
982 EXTRACT_BE_U_2(obj_tptr + 12));
983 obj_tlen-=16;
984 obj_tptr+=16;
985 break;
986 default:
987 hexdump=TRUE;
988 }
989 break;
990
991 case RSVP_OBJ_LABEL_REQ:
992 switch(rsvp_obj_ctype) {
993 case RSVP_CTYPE_1:
994 while(obj_tlen >= 4 ) {
995 ND_PRINT("%s L3 Protocol ID: %s",
996 indent,
997 tok2str(ethertype_values,
998 "Unknown Protocol (0x%04x)",
999 EXTRACT_BE_U_2(obj_tptr + 2)));
1000 obj_tlen-=4;
1001 obj_tptr+=4;
1002 }
1003 break;
1004 case RSVP_CTYPE_2:
1005 if (obj_tlen < 12)
1006 return-1;
1007 ND_PRINT("%s L3 Protocol ID: %s",
1008 indent,
1009 tok2str(ethertype_values,
1010 "Unknown Protocol (0x%04x)",
1011 EXTRACT_BE_U_2(obj_tptr + 2)));
1012 ND_PRINT(",%s merge capability",((EXTRACT_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" );
1013 ND_PRINT("%s Minimum VPI/VCI: %u/%u",
1014 indent,
1015 (EXTRACT_BE_U_2(obj_tptr + 4))&0xfff,
1016 (EXTRACT_BE_U_2(obj_tptr + 6)) & 0xfff);
1017 ND_PRINT("%s Maximum VPI/VCI: %u/%u",
1018 indent,
1019 (EXTRACT_BE_U_2(obj_tptr + 8))&0xfff,
1020 (EXTRACT_BE_U_2(obj_tptr + 10)) & 0xfff);
1021 obj_tlen-=12;
1022 obj_tptr+=12;
1023 break;
1024 case RSVP_CTYPE_3:
1025 if (obj_tlen < 12)
1026 return-1;
1027 ND_PRINT("%s L3 Protocol ID: %s",
1028 indent,
1029 tok2str(ethertype_values,
1030 "Unknown Protocol (0x%04x)",
1031 EXTRACT_BE_U_2(obj_tptr + 2)));
1032 ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1033 indent,
1034 (EXTRACT_BE_U_4(obj_tptr + 4))&0x7fffff,
1035 (EXTRACT_BE_U_4(obj_tptr + 8))&0x7fffff,
1036 (((EXTRACT_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
1037 (((EXTRACT_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : "");
1038 obj_tlen-=12;
1039 obj_tptr+=12;
1040 break;
1041 case RSVP_CTYPE_4:
1042 if (obj_tlen < 4)
1043 return-1;
1044 ND_PRINT("%s LSP Encoding Type: %s (%u)",
1045 indent,
1046 tok2str(gmpls_encoding_values,
1047 "Unknown",
1048 EXTRACT_U_1(obj_tptr)),
1049 EXTRACT_U_1(obj_tptr));
1050 ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
1051 indent,
1052 tok2str(gmpls_switch_cap_values,
1053 "Unknown",
1054 EXTRACT_U_1((obj_tptr + 1))),
1055 EXTRACT_U_1(obj_tptr + 1),
1056 tok2str(gmpls_payload_values,
1057 "Unknown",
1058 EXTRACT_BE_U_2(obj_tptr + 2)),
1059 EXTRACT_BE_U_2(obj_tptr + 2));
1060 obj_tlen-=4;
1061 obj_tptr+=4;
1062 break;
1063 default:
1064 hexdump=TRUE;
1065 }
1066 break;
1067
1068 case RSVP_OBJ_RRO:
1069 case RSVP_OBJ_ERO:
1070 switch(rsvp_obj_ctype) {
1071 case RSVP_CTYPE_IPV4:
1072 while(obj_tlen >= 4 ) {
1073 u_char length;
1074
1075 ND_TCHECK_4(obj_tptr);
1076 length = EXTRACT_U_1(obj_tptr + 1);
1077 ND_PRINT("%s Subobject Type: %s, length %u",
1078 indent,
1079 tok2str(rsvp_obj_xro_values,
1080 "Unknown %u",
1081 RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))),
1082 length);
1083 if (obj_tlen < length) {
1084 ND_PRINT("%s ERROR: ERO subobject length > object length", indent);
1085 break;
1086 }
1087
1088 if (length == 0) { /* prevent infinite loops */
1089 ND_PRINT("%s ERROR: zero length ERO subtype", indent);
1090 break;
1091 }
1092
1093 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))) {
1094 u_char prefix_length;
1095
1096 case RSVP_OBJ_XRO_IPV4:
1097 if (length != 8) {
1098 ND_PRINT(" ERROR: length != 8");
1099 goto invalid;
1100 }
1101 ND_TCHECK_8(obj_tptr);
1102 prefix_length = EXTRACT_U_1(obj_tptr + 6);
1103 if (prefix_length != 32) {
1104 ND_PRINT(" ERROR: Prefix length %u != 32",
1105 prefix_length);
1106 goto invalid;
1107 }
1108 ND_PRINT(", %s, %s/%u, Flags: [%s]",
1109 RSVP_OBJ_XRO_MASK_LOOSE(EXTRACT_U_1(obj_tptr)) ? "Loose" : "Strict",
1110 ipaddr_string(ndo, obj_tptr+2),
1111 EXTRACT_U_1((obj_tptr + 6)),
1112 bittok2str(rsvp_obj_rro_flag_values,
1113 "none",
1114 EXTRACT_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */
1115 break;
1116 case RSVP_OBJ_XRO_LABEL:
1117 if (length != 8) {
1118 ND_PRINT(" ERROR: length != 8");
1119 goto invalid;
1120 }
1121 ND_TCHECK_8(obj_tptr);
1122 ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1123 bittok2str(rsvp_obj_rro_label_flag_values,
1124 "none",
1125 EXTRACT_U_1((obj_tptr + 2))),
1126 EXTRACT_U_1(obj_tptr + 2),
1127 tok2str(rsvp_ctype_values,
1128 "Unknown",
1129 EXTRACT_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
1130 EXTRACT_U_1((obj_tptr + 3)),
1131 EXTRACT_BE_U_4(obj_tptr + 4));
1132 }
1133 obj_tlen-=length;
1134 obj_tptr+=length;
1135 }
1136 break;
1137 default:
1138 hexdump=TRUE;
1139 }
1140 break;
1141
1142 case RSVP_OBJ_HELLO:
1143 switch(rsvp_obj_ctype) {
1144 case RSVP_CTYPE_1:
1145 case RSVP_CTYPE_2:
1146 if (obj_tlen < 8)
1147 return-1;
1148 ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1149 indent,
1150 EXTRACT_BE_U_4(obj_tptr),
1151 EXTRACT_BE_U_4(obj_tptr + 4));
1152 obj_tlen-=8;
1153 obj_tptr+=8;
1154 break;
1155 default:
1156 hexdump=TRUE;
1157 }
1158 break;
1159
1160 case RSVP_OBJ_RESTART_CAPABILITY:
1161 switch(rsvp_obj_ctype) {
1162 case RSVP_CTYPE_1:
1163 if (obj_tlen < 8)
1164 return-1;
1165 ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums",
1166 indent,
1167 EXTRACT_BE_U_4(obj_tptr),
1168 EXTRACT_BE_U_4(obj_tptr + 4));
1169 obj_tlen-=8;
1170 obj_tptr+=8;
1171 break;
1172 default:
1173 hexdump=TRUE;
1174 }
1175 break;
1176
1177 case RSVP_OBJ_SESSION_ATTRIBUTE:
1178 switch(rsvp_obj_ctype) {
1179 case RSVP_CTYPE_TUNNEL_IPV4:
1180 if (obj_tlen < 4)
1181 return-1;
1182 namelen = EXTRACT_U_1(obj_tptr + 3);
1183 if (obj_tlen < 4+namelen)
1184 return-1;
1185 ND_PRINT("%s Session Name: ", indent);
1186 for (i = 0; i < namelen; i++)
1187 fn_print_char(ndo, EXTRACT_U_1(obj_tptr + 4 + i));
1188 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1189 indent,
1190 EXTRACT_U_1(obj_tptr),
1191 EXTRACT_U_1(obj_tptr + 1),
1192 bittok2str(rsvp_session_attribute_flag_values,
1193 "none",
1194 EXTRACT_U_1((obj_tptr + 2))),
1195 EXTRACT_U_1(obj_tptr + 2));
1196 obj_tlen-=4+namelen;
1197 obj_tptr+=4+namelen;
1198 break;
1199 default:
1200 hexdump=TRUE;
1201 }
1202 break;
1203
1204 case RSVP_OBJ_GENERALIZED_UNI:
1205 switch(rsvp_obj_ctype) {
1206 u_int subobj_type,af,subobj_len,total_subobj_len;
1207
1208 case RSVP_CTYPE_1:
1209
1210 if (obj_tlen < 4)
1211 return-1;
1212
1213 /* read variable length subobjects */
1214 total_subobj_len = obj_tlen;
1215 while(total_subobj_len > 0) {
1216 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1217 * GENERALIZED_UNI RSVP object must have the Length field as
1218 * a multiple of 4, instead of the check below it would be
1219 * better to test total_subobj_len only once before the loop.
1220 * So long as it does not define it and this while loop does
1221 * not implement such a requirement, let's accept that within
1222 * each iteration subobj_len may happen to be a multiple of 1
1223 * and test it and total_subobj_len respectively.
1224 */
1225 if (total_subobj_len < 4)
1226 goto invalid;
1227 subobj_len = EXTRACT_BE_U_2(obj_tptr);
1228 subobj_type = (EXTRACT_BE_U_2(obj_tptr + 2))>>8;
1229 af = (EXTRACT_BE_U_2(obj_tptr + 2))&0x00FF;
1230
1231 ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1232 indent,
1233 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1234 subobj_type,
1235 tok2str(af_values, "Unknown", af), af,
1236 subobj_len);
1237
1238 /* In addition to what is explained above, the same spec does not
1239 * explicitly say that the same Length field includes the 4-octet
1240 * sub-object header, but as long as this while loop implements it
1241 * as it does include, let's keep the check below consistent with
1242 * the rest of the code.
1243 *
1244 * XXX - RFC 3476 Section 3.1 says "The contents of these
1245 * sub-objects are described in [8]", where [8] is
1246 * UNI 1.0 Signaling Specification, The Optical
1247 * Internetworking Forum. The URL they give for that
1248 * document is
1249 *
1250 * http://www.oiforum.com/public/UNI_1.0_ia.html
1251 *
1252 * but that doesn't work; the new URL appears to be
1253 *
1254 * http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf
1255 *
1256 * and *that* document, in section 12.5.2.3
1257 * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))",
1258 * says nothing about the length field in general, but
1259 * some of the examples it gives in subsections have
1260 * length field values that clearly includes the length
1261 * of the sub-object header as well as the length of the
1262 * value.
1263 */
1264 if(subobj_len < 4 || subobj_len > total_subobj_len ||
1265 obj_tlen < subobj_len)
1266 goto invalid;
1267
1268 switch(subobj_type) {
1269 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1270 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1271
1272 switch(af) {
1273 case AFNUM_INET:
1274 if (subobj_len < 8)
1275 return -1;
1276 ND_PRINT("%s UNI IPv4 TNA address: %s",
1277 indent, ipaddr_string(ndo, obj_tptr + 4));
1278 break;
1279 case AFNUM_INET6:
1280 if (subobj_len < 20)
1281 return -1;
1282 ND_PRINT("%s UNI IPv6 TNA address: %s",
1283 indent, ip6addr_string(ndo, obj_tptr + 4));
1284 break;
1285 case AFNUM_NSAP:
1286 if (subobj_len) {
1287 /* unless we have a TLV parser lets just hexdump */
1288 hexdump=TRUE;
1289 }
1290 break;
1291 }
1292 break;
1293
1294 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1295 if (subobj_len > 4) {
1296 /* unless we have a TLV parser lets just hexdump */
1297 hexdump=TRUE;
1298 }
1299 break;
1300
1301 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1302 if (subobj_len < 16) {
1303 return -1;
1304 }
1305
1306 ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1307 indent,
1308 ((EXTRACT_BE_U_4(obj_tptr + 4))>>31),
1309 ((EXTRACT_BE_U_4(obj_tptr + 4))&0xFF),
1310 EXTRACT_BE_U_4(obj_tptr + 8),
1311 EXTRACT_BE_U_4(obj_tptr + 12));
1312 break;
1313
1314 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1315 if (subobj_len < 8) {
1316 return -1;
1317 }
1318
1319 ND_PRINT("%s Service level: %u",
1320 indent, (EXTRACT_BE_U_4(obj_tptr + 4)) >> 24);
1321 break;
1322
1323 default:
1324 hexdump=TRUE;
1325 break;
1326 }
1327 total_subobj_len-=subobj_len;
1328 obj_tptr+=subobj_len;
1329 obj_tlen+=subobj_len;
1330 }
1331 break;
1332
1333 default:
1334 hexdump=TRUE;
1335 }
1336 break;
1337
1338 case RSVP_OBJ_RSVP_HOP:
1339 switch(rsvp_obj_ctype) {
1340 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1341 case RSVP_CTYPE_IPV4:
1342 if (obj_tlen < 8)
1343 return-1;
1344 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1345 indent,
1346 ipaddr_string(ndo, obj_tptr),
1347 EXTRACT_BE_U_4(obj_tptr + 4));
1348 obj_tlen-=8;
1349 obj_tptr+=8;
1350 if (obj_tlen)
1351 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1352 break;
1353 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1354 case RSVP_CTYPE_IPV6:
1355 if (obj_tlen < 20)
1356 return-1;
1357 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1358 indent,
1359 ip6addr_string(ndo, obj_tptr),
1360 EXTRACT_BE_U_4(obj_tptr + 16));
1361 obj_tlen-=20;
1362 obj_tptr+=20;
1363 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1364 break;
1365 default:
1366 hexdump=TRUE;
1367 }
1368 break;
1369
1370 case RSVP_OBJ_TIME_VALUES:
1371 switch(rsvp_obj_ctype) {
1372 case RSVP_CTYPE_1:
1373 if (obj_tlen < 4)
1374 return-1;
1375 ND_PRINT("%s Refresh Period: %ums",
1376 indent,
1377 EXTRACT_BE_U_4(obj_tptr));
1378 obj_tlen-=4;
1379 obj_tptr+=4;
1380 break;
1381 default:
1382 hexdump=TRUE;
1383 }
1384 break;
1385
1386 /* those three objects do share the same semantics */
1387 case RSVP_OBJ_SENDER_TSPEC:
1388 case RSVP_OBJ_ADSPEC:
1389 case RSVP_OBJ_FLOWSPEC:
1390 switch(rsvp_obj_ctype) {
1391 case RSVP_CTYPE_2:
1392 if (obj_tlen < 4)
1393 return-1;
1394 ND_PRINT("%s Msg-Version: %u, length: %u",
1395 indent,
1396 (EXTRACT_U_1(obj_tptr) & 0xf0) >> 4,
1397 EXTRACT_BE_U_2(obj_tptr + 2) << 2);
1398 obj_tptr+=4; /* get to the start of the service header */
1399 obj_tlen-=4;
1400
1401 while (obj_tlen >= 4) {
1402 intserv_serv_tlen=EXTRACT_BE_U_2(obj_tptr + 2)<<2;
1403 ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u",
1404 indent,
1405 tok2str(rsvp_intserv_service_type_values,"unknown",EXTRACT_U_1((obj_tptr))),
1406 EXTRACT_U_1(obj_tptr),
1407 (EXTRACT_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
1408 intserv_serv_tlen);
1409
1410 obj_tptr+=4; /* get to the start of the parameter list */
1411 obj_tlen-=4;
1412
1413 while (intserv_serv_tlen>=4) {
1414 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1415 if (processed == 0)
1416 break;
1417 obj_tlen-=processed;
1418 intserv_serv_tlen-=processed;
1419 obj_tptr+=processed;
1420 }
1421 }
1422 break;
1423 default:
1424 hexdump=TRUE;
1425 }
1426 break;
1427
1428 case RSVP_OBJ_FILTERSPEC:
1429 switch(rsvp_obj_ctype) {
1430 case RSVP_CTYPE_IPV4:
1431 if (obj_tlen < 8)
1432 return-1;
1433 ND_PRINT("%s Source Address: %s, Source Port: %u",
1434 indent,
1435 ipaddr_string(ndo, obj_tptr),
1436 EXTRACT_BE_U_2(obj_tptr + 6));
1437 obj_tlen-=8;
1438 obj_tptr+=8;
1439 break;
1440 case RSVP_CTYPE_IPV6:
1441 if (obj_tlen < 20)
1442 return-1;
1443 ND_PRINT("%s Source Address: %s, Source Port: %u",
1444 indent,
1445 ip6addr_string(ndo, obj_tptr),
1446 EXTRACT_BE_U_2(obj_tptr + 18));
1447 obj_tlen-=20;
1448 obj_tptr+=20;
1449 break;
1450 case RSVP_CTYPE_3:
1451 if (obj_tlen < 20)
1452 return-1;
1453 ND_PRINT("%s Source Address: %s, Flow Label: %u",
1454 indent,
1455 ip6addr_string(ndo, obj_tptr),
1456 EXTRACT_BE_U_3(obj_tptr + 17));
1457 obj_tlen-=20;
1458 obj_tptr+=20;
1459 break;
1460 case RSVP_CTYPE_TUNNEL_IPV6:
1461 if (obj_tlen < 20)
1462 return-1;
1463 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1464 indent,
1465 ipaddr_string(ndo, obj_tptr),
1466 EXTRACT_BE_U_2(obj_tptr + 18));
1467 obj_tlen-=20;
1468 obj_tptr+=20;
1469 break;
1470 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1471 if (obj_tlen < 40)
1472 return-1;
1473 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1474 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1475 indent,
1476 ip6addr_string(ndo, obj_tptr),
1477 EXTRACT_BE_U_2(obj_tptr + 18),
1478 indent,
1479 ip6addr_string(ndo, obj_tptr+20),
1480 EXTRACT_BE_U_2(obj_tptr + 38));
1481 obj_tlen-=40;
1482 obj_tptr+=40;
1483 break;
1484 case RSVP_CTYPE_TUNNEL_IPV4:
1485 if (obj_tlen < 8)
1486 return-1;
1487 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1488 indent,
1489 ipaddr_string(ndo, obj_tptr),
1490 EXTRACT_BE_U_2(obj_tptr + 6));
1491 obj_tlen-=8;
1492 obj_tptr+=8;
1493 break;
1494 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1495 if (obj_tlen < 16)
1496 return-1;
1497 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1498 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1499 indent,
1500 ipaddr_string(ndo, obj_tptr),
1501 EXTRACT_BE_U_2(obj_tptr + 6),
1502 indent,
1503 ipaddr_string(ndo, obj_tptr+8),
1504 EXTRACT_BE_U_2(obj_tptr + 12));
1505 obj_tlen-=16;
1506 obj_tptr+=16;
1507 break;
1508 default:
1509 hexdump=TRUE;
1510 }
1511 break;
1512
1513 case RSVP_OBJ_FASTREROUTE:
1514 /* the differences between c-type 1 and 7 are minor */
1515 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1516
1517 switch(rsvp_obj_ctype) {
1518 case RSVP_CTYPE_1: /* new style */
1519 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1520 return-1;
1521 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1522 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1523 indent,
1524 obj_ptr.rsvp_obj_frr->setup_prio,
1525 obj_ptr.rsvp_obj_frr->hold_prio,
1526 obj_ptr.rsvp_obj_frr->hop_limit,
1527 bw.f * 8 / 1000000);
1528 ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1529 indent,
1530 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1531 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
1532 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_all));
1533 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1534 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1535 break;
1536
1537 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1538 if (obj_tlen < 16)
1539 return-1;
1540 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1541 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1542 indent,
1543 obj_ptr.rsvp_obj_frr->setup_prio,
1544 obj_ptr.rsvp_obj_frr->hold_prio,
1545 obj_ptr.rsvp_obj_frr->hop_limit,
1546 bw.f * 8 / 1000000);
1547 ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1548 indent,
1549 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1550 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any));
1551 obj_tlen-=16;
1552 obj_tptr+=16;
1553 break;
1554
1555 default:
1556 hexdump=TRUE;
1557 }
1558 break;
1559
1560 case RSVP_OBJ_DETOUR:
1561 switch(rsvp_obj_ctype) {
1562 case RSVP_CTYPE_TUNNEL_IPV4:
1563 while(obj_tlen >= 8) {
1564 ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s",
1565 indent,
1566 ipaddr_string(ndo, obj_tptr),
1567 ipaddr_string(ndo, obj_tptr + 4));
1568 obj_tlen-=8;
1569 obj_tptr+=8;
1570 }
1571 break;
1572 default:
1573 hexdump=TRUE;
1574 }
1575 break;
1576
1577 case RSVP_OBJ_CLASSTYPE:
1578 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1579 switch(rsvp_obj_ctype) {
1580 case RSVP_CTYPE_1:
1581 ND_PRINT("%s CT: %u",
1582 indent,
1583 EXTRACT_BE_U_4(obj_tptr) & 0x7);
1584 obj_tlen-=4;
1585 obj_tptr+=4;
1586 break;
1587 default:
1588 hexdump=TRUE;
1589 }
1590 break;
1591
1592 case RSVP_OBJ_ERROR_SPEC:
1593 switch(rsvp_obj_ctype) {
1594 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1595 case RSVP_CTYPE_IPV4:
1596 if (obj_tlen < 8)
1597 return-1;
1598 error_code=EXTRACT_U_1(obj_tptr + 5);
1599 error_value=EXTRACT_BE_U_2(obj_tptr + 6);
1600 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1601 indent,
1602 ipaddr_string(ndo, obj_tptr),
1603 EXTRACT_U_1(obj_tptr + 4),
1604 indent,
1605 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1606 error_code);
1607 switch (error_code) {
1608 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1609 ND_PRINT(", Error Value: %s (%u)",
1610 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1611 error_value);
1612 break;
1613 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1614 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1615 ND_PRINT(", Error Value: %s (%u)",
1616 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1617 error_value);
1618 break;
1619 default:
1620 ND_PRINT(", Unknown Error Value (%u)", error_value);
1621 break;
1622 }
1623 obj_tlen-=8;
1624 obj_tptr+=8;
1625 break;
1626 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1627 case RSVP_CTYPE_IPV6:
1628 if (obj_tlen < 20)
1629 return-1;
1630 error_code=EXTRACT_U_1(obj_tptr + 17);
1631 error_value=EXTRACT_BE_U_2(obj_tptr + 18);
1632 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1633 indent,
1634 ip6addr_string(ndo, obj_tptr),
1635 EXTRACT_U_1(obj_tptr + 16),
1636 indent,
1637 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1638 error_code);
1639
1640 switch (error_code) {
1641 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1642 ND_PRINT(", Error Value: %s (%u)",
1643 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1644 error_value);
1645 break;
1646 default:
1647 break;
1648 }
1649 obj_tlen-=20;
1650 obj_tptr+=20;
1651 break;
1652 default:
1653 hexdump=TRUE;
1654 }
1655 break;
1656
1657 case RSVP_OBJ_PROPERTIES:
1658 switch(rsvp_obj_ctype) {
1659 case RSVP_CTYPE_1:
1660 if (obj_tlen < 4)
1661 return-1;
1662 padbytes = EXTRACT_BE_U_2(obj_tptr + 2);
1663 ND_PRINT("%s TLV count: %u, padding bytes: %u",
1664 indent,
1665 EXTRACT_BE_U_2(obj_tptr),
1666 padbytes);
1667 obj_tlen-=4;
1668 obj_tptr+=4;
1669 /* loop through as long there is anything longer than the TLV header (2) */
1670 while(obj_tlen >= 2 + padbytes) {
1671 ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */
1672 indent,
1673 tok2str(rsvp_obj_prop_tlv_values,"unknown",EXTRACT_U_1(obj_tptr)),
1674 EXTRACT_U_1(obj_tptr),
1675 EXTRACT_U_1(obj_tptr + 1));
1676 if (obj_tlen < EXTRACT_U_1(obj_tptr + 1))
1677 return-1;
1678 if (EXTRACT_U_1(obj_tptr + 1) < 2)
1679 return -1;
1680 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
1681 EXTRACT_U_1(obj_tptr + 1) - 2);
1682 obj_tlen-=EXTRACT_U_1(obj_tptr + 1);
1683 obj_tptr+=EXTRACT_U_1(obj_tptr + 1);
1684 }
1685 break;
1686 default:
1687 hexdump=TRUE;
1688 }
1689 break;
1690
1691 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1692 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1693 case RSVP_OBJ_MESSAGE_ID_LIST:
1694 switch(rsvp_obj_ctype) {
1695 case RSVP_CTYPE_1:
1696 case RSVP_CTYPE_2:
1697 if (obj_tlen < 8)
1698 return-1;
1699 ND_PRINT("%s Flags [0x%02x], epoch: %u",
1700 indent,
1701 EXTRACT_U_1(obj_tptr),
1702 EXTRACT_BE_U_3(obj_tptr + 1));
1703 obj_tlen-=4;
1704 obj_tptr+=4;
1705 /* loop through as long there are no messages left */
1706 while(obj_tlen >= 4) {
1707 ND_PRINT("%s Message-ID 0x%08x (%u)",
1708 indent,
1709 EXTRACT_BE_U_4(obj_tptr),
1710 EXTRACT_BE_U_4(obj_tptr));
1711 obj_tlen-=4;
1712 obj_tptr+=4;
1713 }
1714 break;
1715 default:
1716 hexdump=TRUE;
1717 }
1718 break;
1719
1720 case RSVP_OBJ_INTEGRITY:
1721 switch(rsvp_obj_ctype) {
1722 case RSVP_CTYPE_1:
1723 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1724 return-1;
1725 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1726 ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1727 indent,
1728 EXTRACT_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
1729 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
1730 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
1731 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
1732 bittok2str(rsvp_obj_integrity_flag_values,
1733 "none",
1734 obj_ptr.rsvp_obj_integrity->flags));
1735 ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ",
1736 indent,
1737 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
1738 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
1739 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
1740 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12));
1741
1742 sigcheck = signature_verify(ndo, pptr, plen,
1743 obj_ptr.rsvp_obj_integrity->digest,
1744 rsvp_clear_checksum,
1745 rsvp_com_header);
1746 ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
1747
1748 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1749 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1750 break;
1751 default:
1752 hexdump=TRUE;
1753 }
1754 break;
1755
1756 case RSVP_OBJ_ADMIN_STATUS:
1757 switch(rsvp_obj_ctype) {
1758 case RSVP_CTYPE_1:
1759 if (obj_tlen < 4)
1760 return-1;
1761 ND_PRINT("%s Flags [%s]", indent,
1762 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1763 EXTRACT_BE_U_4(obj_tptr)));
1764 obj_tlen-=4;
1765 obj_tptr+=4;
1766 break;
1767 default:
1768 hexdump=TRUE;
1769 }
1770 break;
1771
1772 case RSVP_OBJ_LABEL_SET:
1773 switch(rsvp_obj_ctype) {
1774 case RSVP_CTYPE_1:
1775 if (obj_tlen < 4)
1776 return-1;
1777 action = (EXTRACT_BE_U_2(obj_tptr)>>8);
1778
1779 ND_PRINT("%s Action: %s (%u), Label type: %u", indent,
1780 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1781 action, (EXTRACT_BE_U_4(obj_tptr) & 0x7F));
1782
1783 switch (action) {
1784 case LABEL_SET_INCLUSIVE_RANGE:
1785 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1786
1787 /* only a couple of subchannels are expected */
1788 if (obj_tlen < 12)
1789 return -1;
1790 ND_PRINT("%s Start range: %u, End range: %u", indent,
1791 EXTRACT_BE_U_4(obj_tptr + 4),
1792 EXTRACT_BE_U_4(obj_tptr + 8));
1793 obj_tlen-=12;
1794 obj_tptr+=12;
1795 break;
1796
1797 default:
1798 obj_tlen-=4;
1799 obj_tptr+=4;
1800 subchannel = 1;
1801 while(obj_tlen >= 4 ) {
1802 ND_PRINT("%s Subchannel #%u: %u", indent, subchannel,
1803 EXTRACT_BE_U_4(obj_tptr));
1804 obj_tptr+=4;
1805 obj_tlen-=4;
1806 subchannel++;
1807 }
1808 break;
1809 }
1810 break;
1811 default:
1812 hexdump=TRUE;
1813 }
1814 break;
1815
1816 case RSVP_OBJ_S2L:
1817 switch (rsvp_obj_ctype) {
1818 case RSVP_CTYPE_IPV4:
1819 if (obj_tlen < 4)
1820 return-1;
1821 ND_PRINT("%s Sub-LSP destination address: %s",
1822 indent, ipaddr_string(ndo, obj_tptr));
1823
1824 obj_tlen-=4;
1825 obj_tptr+=4;
1826 break;
1827 case RSVP_CTYPE_IPV6:
1828 if (obj_tlen < 16)
1829 return-1;
1830 ND_PRINT("%s Sub-LSP destination address: %s",
1831 indent, ip6addr_string(ndo, obj_tptr));
1832
1833 obj_tlen-=16;
1834 obj_tptr+=16;
1835 break;
1836 default:
1837 hexdump=TRUE;
1838 }
1839 break;
1840
1841 /*
1842 * FIXME those are the defined objects that lack a decoder
1843 * you are welcome to contribute code ;-)
1844 */
1845
1846 case RSVP_OBJ_SCOPE:
1847 case RSVP_OBJ_POLICY_DATA:
1848 case RSVP_OBJ_ACCEPT_LABEL_SET:
1849 case RSVP_OBJ_PROTECTION:
1850 default:
1851 if (ndo->ndo_vflag <= 1)
1852 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1853 break;
1854 }
1855 /* do we also want to see a hex dump ? */
1856 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1857 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1858 rsvp_obj_len - sizeof(struct rsvp_object_header));
1859
1860 tptr+=rsvp_obj_len;
1861 tlen-=rsvp_obj_len;
1862 }
1863 return 0;
1864 invalid:
1865 nd_print_invalid(ndo);
1866 return -1;
1867 trunc:
1868 nd_print_trunc(ndo);
1869 return -1;
1870 }
1871
1872 void
1873 rsvp_print(netdissect_options *ndo,
1874 const u_char *pptr, u_int len)
1875 {
1876 const struct rsvp_common_header *rsvp_com_header;
1877 uint8_t version_flags, msg_type;
1878 const u_char *tptr;
1879 u_short plen, tlen;
1880
1881 ndo->ndo_protocol = "rsvp";
1882 tptr=pptr;
1883
1884 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1885 ND_TCHECK_SIZE(rsvp_com_header);
1886 version_flags = EXTRACT_U_1(rsvp_com_header->version_flags);
1887
1888 /*
1889 * Sanity checking of the header.
1890 */
1891 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1892 ND_PRINT("ERROR: RSVP version %u packet not supported",
1893 RSVP_EXTRACT_VERSION(version_flags));
1894 return;
1895 }
1896
1897 msg_type = EXTRACT_U_1(rsvp_com_header->msg_type);
1898
1899 /* in non-verbose mode just lets print the basic Message Type*/
1900 if (ndo->ndo_vflag < 1) {
1901 ND_PRINT("RSVPv%u %s Message, length: %u",
1902 RSVP_EXTRACT_VERSION(version_flags),
1903 tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type),
1904 len);
1905 return;
1906 }
1907
1908 /* ok they seem to want to know everything - lets fully decode it */
1909
1910 plen = tlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1911
1912 ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1913 RSVP_EXTRACT_VERSION(version_flags),
1914 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1915 msg_type,
1916 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1917 tlen,
1918 EXTRACT_U_1(rsvp_com_header->ttl),
1919 EXTRACT_BE_U_2(rsvp_com_header->checksum));
1920
1921 if (tlen < sizeof(struct rsvp_common_header)) {
1922 ND_PRINT("ERROR: common header too short %u < %lu", tlen,
1923 (unsigned long)sizeof(struct rsvp_common_header));
1924 return;
1925 }
1926
1927 tptr+=sizeof(struct rsvp_common_header);
1928 tlen-=sizeof(struct rsvp_common_header);
1929
1930 switch(msg_type) {
1931
1932 case RSVP_MSGTYPE_BUNDLE:
1933 /*
1934 * Process each submessage in the bundle message.
1935 * Bundle messages may not contain bundle submessages, so we don't
1936 * need to handle bundle submessages specially.
1937 */
1938 while(tlen > 0) {
1939 const u_char *subpptr=tptr, *subtptr;
1940 u_short subplen, subtlen;
1941
1942 subtptr=subpptr;
1943
1944 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1945 ND_TCHECK_SIZE(rsvp_com_header);
1946 version_flags = EXTRACT_U_1(rsvp_com_header->version_flags);
1947
1948 /*
1949 * Sanity checking of the header.
1950 */
1951 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1952 ND_PRINT("ERROR: RSVP version %u packet not supported",
1953 RSVP_EXTRACT_VERSION(version_flags));
1954 return;
1955 }
1956
1957 subplen = subtlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1958
1959 msg_type = EXTRACT_U_1(rsvp_com_header->msg_type);
1960 ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1961 RSVP_EXTRACT_VERSION(version_flags),
1962 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1963 msg_type,
1964 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1965 subtlen,
1966 EXTRACT_U_1(rsvp_com_header->ttl),
1967 EXTRACT_BE_U_2(rsvp_com_header->checksum));
1968
1969 if (subtlen < sizeof(struct rsvp_common_header)) {
1970 ND_PRINT("ERROR: common header too short %u < %lu", subtlen,
1971 (unsigned long)sizeof(struct rsvp_common_header));
1972 return;
1973 }
1974
1975 if (tlen < subtlen) {
1976 ND_PRINT("ERROR: common header too large %u > %u", subtlen,
1977 tlen);
1978 return;
1979 }
1980
1981 subtptr+=sizeof(struct rsvp_common_header);
1982 subtlen-=sizeof(struct rsvp_common_header);
1983
1984 /*
1985 * Print all objects in the submessage.
1986 */
1987 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
1988 return;
1989
1990 tptr+=subtlen+sizeof(struct rsvp_common_header);
1991 tlen-=subtlen+sizeof(struct rsvp_common_header);
1992 }
1993
1994 break;
1995
1996 case RSVP_MSGTYPE_PATH:
1997 case RSVP_MSGTYPE_RESV:
1998 case RSVP_MSGTYPE_PATHERR:
1999 case RSVP_MSGTYPE_RESVERR:
2000 case RSVP_MSGTYPE_PATHTEAR:
2001 case RSVP_MSGTYPE_RESVTEAR:
2002 case RSVP_MSGTYPE_RESVCONF:
2003 case RSVP_MSGTYPE_HELLO_OLD:
2004 case RSVP_MSGTYPE_HELLO:
2005 case RSVP_MSGTYPE_ACK:
2006 case RSVP_MSGTYPE_SREFRESH:
2007 /*
2008 * Print all objects in the message.
2009 */
2010 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
2011 return;
2012 break;
2013
2014 default:
2015 print_unknown_data(ndo, tptr, "\n\t ", tlen);
2016 break;
2017 }
2018
2019 return;
2020 trunc:
2021 nd_print_trunc(ndo);
2022 }
[mirror] the TCPdump network dissector