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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 ND_TCHECK_LEN(tptr, rsvp_obj_len);
733 hexdump=FALSE;
734
735 switch(rsvp_obj_class_num) {
736 case RSVP_OBJ_SESSION:
737 switch(rsvp_obj_ctype) {
738 case RSVP_CTYPE_IPV4:
739 if (obj_tlen < 8)
740 return -1;
741 ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
742 indent,
743 ipaddr_string(ndo, obj_tptr),
744 EXTRACT_U_1(obj_tptr + sizeof(nd_ipv4)));
745 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
746 indent,
747 EXTRACT_U_1((obj_tptr + 5)),
748 EXTRACT_BE_U_2(obj_tptr + 6));
749 obj_tlen-=8;
750 obj_tptr+=8;
751 break;
752 case RSVP_CTYPE_IPV6:
753 if (obj_tlen < 20)
754 return -1;
755 ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
756 indent,
757 ip6addr_string(ndo, obj_tptr),
758 EXTRACT_U_1(obj_tptr + sizeof(nd_ipv6)));
759 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
760 indent,
761 EXTRACT_U_1((obj_tptr + sizeof(nd_ipv6) + 1)),
762 EXTRACT_BE_U_2(obj_tptr + sizeof(nd_ipv6) + 2));
763 obj_tlen-=20;
764 obj_tptr+=20;
765 break;
766
767 case RSVP_CTYPE_TUNNEL_IPV6:
768 if (obj_tlen < 36)
769 return -1;
770 ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
771 indent,
772 ip6addr_string(ndo, obj_tptr),
773 EXTRACT_BE_U_2(obj_tptr + 18),
774 ip6addr_string(ndo, obj_tptr + 20));
775 obj_tlen-=36;
776 obj_tptr+=36;
777 break;
778
779 case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
780 if (obj_tlen < 26)
781 return -1;
782 ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
783 indent,
784 EXTRACT_BE_U_4(obj_tptr),
785 EXTRACT_BE_U_2(obj_tptr + 6),
786 ip6addr_string(ndo, obj_tptr + 8));
787 obj_tlen-=26;
788 obj_tptr+=26;
789 break;
790 case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
791 if (obj_tlen < 12)
792 return -1;
793 ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
794 indent,
795 ipaddr_string(ndo, obj_tptr),
796 EXTRACT_BE_U_2(obj_tptr + 6),
797 ipaddr_string(ndo, obj_tptr + 8));
798 obj_tlen-=12;
799 obj_tptr+=12;
800 break;
801 case RSVP_CTYPE_TUNNEL_IPV4:
802 case RSVP_CTYPE_UNI_IPV4:
803 if (obj_tlen < 12)
804 return -1;
805 ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
806 indent,
807 ipaddr_string(ndo, obj_tptr),
808 EXTRACT_BE_U_2(obj_tptr + 6),
809 ipaddr_string(ndo, obj_tptr + 8));
810 obj_tlen-=12;
811 obj_tptr+=12;
812 break;
813 default:
814 hexdump=TRUE;
815 }
816 break;
817
818 case RSVP_OBJ_CONFIRM:
819 switch(rsvp_obj_ctype) {
820 case RSVP_CTYPE_IPV4:
821 if (obj_tlen < sizeof(nd_ipv4))
822 return -1;
823 ND_PRINT("%s IPv4 Receiver Address: %s",
824 indent,
825 ipaddr_string(ndo, obj_tptr));
826 obj_tlen-=sizeof(nd_ipv4);
827 obj_tptr+=sizeof(nd_ipv4);
828 break;
829 case RSVP_CTYPE_IPV6:
830 if (obj_tlen < sizeof(nd_ipv6))
831 return -1;
832 ND_PRINT("%s IPv6 Receiver Address: %s",
833 indent,
834 ip6addr_string(ndo, obj_tptr));
835 obj_tlen-=sizeof(nd_ipv6);
836 obj_tptr+=sizeof(nd_ipv6);
837 break;
838 default:
839 hexdump=TRUE;
840 }
841 break;
842
843 case RSVP_OBJ_NOTIFY_REQ:
844 switch(rsvp_obj_ctype) {
845 case RSVP_CTYPE_IPV4:
846 if (obj_tlen < sizeof(nd_ipv4))
847 return -1;
848 ND_PRINT("%s IPv4 Notify Node Address: %s",
849 indent,
850 ipaddr_string(ndo, obj_tptr));
851 obj_tlen-=sizeof(nd_ipv4);
852 obj_tptr+=sizeof(nd_ipv4);
853 break;
854 case RSVP_CTYPE_IPV6:
855 if (obj_tlen < sizeof(nd_ipv6))
856 return-1;
857 ND_PRINT("%s IPv6 Notify Node Address: %s",
858 indent,
859 ip6addr_string(ndo, obj_tptr));
860 obj_tlen-=sizeof(nd_ipv6);
861 obj_tptr+=sizeof(nd_ipv6);
862 break;
863 default:
864 hexdump=TRUE;
865 }
866 break;
867
868 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
869 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
870 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
871 case RSVP_OBJ_LABEL:
872 switch(rsvp_obj_ctype) {
873 case RSVP_CTYPE_1:
874 while(obj_tlen >= 4 ) {
875 ND_PRINT("%s Label: %u", indent, EXTRACT_BE_U_4(obj_tptr));
876 obj_tlen-=4;
877 obj_tptr+=4;
878 }
879 break;
880 case RSVP_CTYPE_2:
881 if (obj_tlen < 4)
882 return-1;
883 ND_PRINT("%s Generalized Label: %u",
884 indent,
885 EXTRACT_BE_U_4(obj_tptr));
886 obj_tlen-=4;
887 obj_tptr+=4;
888 break;
889 case RSVP_CTYPE_3:
890 if (obj_tlen < 12)
891 return-1;
892 ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
893 indent,
894 EXTRACT_BE_U_4(obj_tptr),
895 indent,
896 EXTRACT_BE_U_4(obj_tptr + 4),
897 EXTRACT_BE_U_4(obj_tptr + 8));
898 obj_tlen-=12;
899 obj_tptr+=12;
900 break;
901 default:
902 hexdump=TRUE;
903 }
904 break;
905
906 case RSVP_OBJ_STYLE:
907 switch(rsvp_obj_ctype) {
908 case RSVP_CTYPE_1:
909 if (obj_tlen < 4)
910 return-1;
911 ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]",
912 indent,
913 tok2str(rsvp_resstyle_values,
914 "Unknown",
915 EXTRACT_BE_U_3(obj_tptr + 1)),
916 EXTRACT_U_1(obj_tptr));
917 obj_tlen-=4;
918 obj_tptr+=4;
919 break;
920 default:
921 hexdump=TRUE;
922 }
923 break;
924
925 case RSVP_OBJ_SENDER_TEMPLATE:
926 switch(rsvp_obj_ctype) {
927 case RSVP_CTYPE_IPV4:
928 if (obj_tlen < 8)
929 return-1;
930 ND_PRINT("%s Source Address: %s, Source Port: %u",
931 indent,
932 ipaddr_string(ndo, obj_tptr),
933 EXTRACT_BE_U_2(obj_tptr + 6));
934 obj_tlen-=8;
935 obj_tptr+=8;
936 break;
937 case RSVP_CTYPE_IPV6:
938 if (obj_tlen < 20)
939 return-1;
940 ND_PRINT("%s Source Address: %s, Source Port: %u",
941 indent,
942 ip6addr_string(ndo, obj_tptr),
943 EXTRACT_BE_U_2(obj_tptr + 18));
944 obj_tlen-=20;
945 obj_tptr+=20;
946 break;
947 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
948 if (obj_tlen < 40)
949 return-1;
950 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
951 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
952 indent,
953 ip6addr_string(ndo, obj_tptr),
954 EXTRACT_BE_U_2(obj_tptr + 18),
955 indent,
956 ip6addr_string(ndo, obj_tptr+20),
957 EXTRACT_BE_U_2(obj_tptr + 38));
958 obj_tlen-=40;
959 obj_tptr+=40;
960 break;
961 case RSVP_CTYPE_TUNNEL_IPV4:
962 if (obj_tlen < 8)
963 return-1;
964 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
965 indent,
966 ipaddr_string(ndo, obj_tptr),
967 EXTRACT_BE_U_2(obj_tptr + 6));
968 obj_tlen-=8;
969 obj_tptr+=8;
970 break;
971 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
972 if (obj_tlen < 16)
973 return-1;
974 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
975 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
976 indent,
977 ipaddr_string(ndo, obj_tptr),
978 EXTRACT_BE_U_2(obj_tptr + 6),
979 indent,
980 ipaddr_string(ndo, obj_tptr+8),
981 EXTRACT_BE_U_2(obj_tptr + 12));
982 obj_tlen-=16;
983 obj_tptr+=16;
984 break;
985 default:
986 hexdump=TRUE;
987 }
988 break;
989
990 case RSVP_OBJ_LABEL_REQ:
991 switch(rsvp_obj_ctype) {
992 case RSVP_CTYPE_1:
993 while(obj_tlen >= 4 ) {
994 ND_PRINT("%s L3 Protocol ID: %s",
995 indent,
996 tok2str(ethertype_values,
997 "Unknown Protocol (0x%04x)",
998 EXTRACT_BE_U_2(obj_tptr + 2)));
999 obj_tlen-=4;
1000 obj_tptr+=4;
1001 }
1002 break;
1003 case RSVP_CTYPE_2:
1004 if (obj_tlen < 12)
1005 return-1;
1006 ND_PRINT("%s L3 Protocol ID: %s",
1007 indent,
1008 tok2str(ethertype_values,
1009 "Unknown Protocol (0x%04x)",
1010 EXTRACT_BE_U_2(obj_tptr + 2)));
1011 ND_PRINT(",%s merge capability",((EXTRACT_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" );
1012 ND_PRINT("%s Minimum VPI/VCI: %u/%u",
1013 indent,
1014 (EXTRACT_BE_U_2(obj_tptr + 4))&0xfff,
1015 (EXTRACT_BE_U_2(obj_tptr + 6)) & 0xfff);
1016 ND_PRINT("%s Maximum VPI/VCI: %u/%u",
1017 indent,
1018 (EXTRACT_BE_U_2(obj_tptr + 8))&0xfff,
1019 (EXTRACT_BE_U_2(obj_tptr + 10)) & 0xfff);
1020 obj_tlen-=12;
1021 obj_tptr+=12;
1022 break;
1023 case RSVP_CTYPE_3:
1024 if (obj_tlen < 12)
1025 return-1;
1026 ND_PRINT("%s L3 Protocol ID: %s",
1027 indent,
1028 tok2str(ethertype_values,
1029 "Unknown Protocol (0x%04x)",
1030 EXTRACT_BE_U_2(obj_tptr + 2)));
1031 ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1032 indent,
1033 (EXTRACT_BE_U_4(obj_tptr + 4))&0x7fffff,
1034 (EXTRACT_BE_U_4(obj_tptr + 8))&0x7fffff,
1035 (((EXTRACT_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
1036 (((EXTRACT_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : "");
1037 obj_tlen-=12;
1038 obj_tptr+=12;
1039 break;
1040 case RSVP_CTYPE_4:
1041 if (obj_tlen < 4)
1042 return-1;
1043 ND_PRINT("%s LSP Encoding Type: %s (%u)",
1044 indent,
1045 tok2str(gmpls_encoding_values,
1046 "Unknown",
1047 EXTRACT_U_1(obj_tptr)),
1048 EXTRACT_U_1(obj_tptr));
1049 ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
1050 indent,
1051 tok2str(gmpls_switch_cap_values,
1052 "Unknown",
1053 EXTRACT_U_1((obj_tptr + 1))),
1054 EXTRACT_U_1(obj_tptr + 1),
1055 tok2str(gmpls_payload_values,
1056 "Unknown",
1057 EXTRACT_BE_U_2(obj_tptr + 2)),
1058 EXTRACT_BE_U_2(obj_tptr + 2));
1059 obj_tlen-=4;
1060 obj_tptr+=4;
1061 break;
1062 default:
1063 hexdump=TRUE;
1064 }
1065 break;
1066
1067 case RSVP_OBJ_RRO:
1068 case RSVP_OBJ_ERO:
1069 switch(rsvp_obj_ctype) {
1070 case RSVP_CTYPE_IPV4:
1071 while(obj_tlen >= 4 ) {
1072 u_char length;
1073
1074 ND_TCHECK_4(obj_tptr);
1075 length = EXTRACT_U_1(obj_tptr + 1);
1076 ND_PRINT("%s Subobject Type: %s, length %u",
1077 indent,
1078 tok2str(rsvp_obj_xro_values,
1079 "Unknown %u",
1080 RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))),
1081 length);
1082 if (obj_tlen < length) {
1083 ND_PRINT("%s ERROR: ERO subobject length > object length", indent);
1084 break;
1085 }
1086
1087 if (length == 0) { /* prevent infinite loops */
1088 ND_PRINT("%s ERROR: zero length ERO subtype", indent);
1089 break;
1090 }
1091
1092 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))) {
1093 u_char prefix_length;
1094
1095 case RSVP_OBJ_XRO_IPV4:
1096 if (length != 8) {
1097 ND_PRINT(" ERROR: length != 8");
1098 goto invalid;
1099 }
1100 ND_TCHECK_8(obj_tptr);
1101 prefix_length = EXTRACT_U_1(obj_tptr + 6);
1102 if (prefix_length != 32) {
1103 ND_PRINT(" ERROR: Prefix length %u != 32",
1104 prefix_length);
1105 goto invalid;
1106 }
1107 ND_PRINT(", %s, %s/%u, Flags: [%s]",
1108 RSVP_OBJ_XRO_MASK_LOOSE(EXTRACT_U_1(obj_tptr)) ? "Loose" : "Strict",
1109 ipaddr_string(ndo, obj_tptr+2),
1110 EXTRACT_U_1((obj_tptr + 6)),
1111 bittok2str(rsvp_obj_rro_flag_values,
1112 "none",
1113 EXTRACT_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */
1114 break;
1115 case RSVP_OBJ_XRO_LABEL:
1116 if (length != 8) {
1117 ND_PRINT(" ERROR: length != 8");
1118 goto invalid;
1119 }
1120 ND_TCHECK_8(obj_tptr);
1121 ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1122 bittok2str(rsvp_obj_rro_label_flag_values,
1123 "none",
1124 EXTRACT_U_1((obj_tptr + 2))),
1125 EXTRACT_U_1(obj_tptr + 2),
1126 tok2str(rsvp_ctype_values,
1127 "Unknown",
1128 EXTRACT_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
1129 EXTRACT_U_1((obj_tptr + 3)),
1130 EXTRACT_BE_U_4(obj_tptr + 4));
1131 }
1132 obj_tlen-=length;
1133 obj_tptr+=length;
1134 }
1135 break;
1136 default:
1137 hexdump=TRUE;
1138 }
1139 break;
1140
1141 case RSVP_OBJ_HELLO:
1142 switch(rsvp_obj_ctype) {
1143 case RSVP_CTYPE_1:
1144 case RSVP_CTYPE_2:
1145 if (obj_tlen < 8)
1146 return-1;
1147 ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1148 indent,
1149 EXTRACT_BE_U_4(obj_tptr),
1150 EXTRACT_BE_U_4(obj_tptr + 4));
1151 obj_tlen-=8;
1152 obj_tptr+=8;
1153 break;
1154 default:
1155 hexdump=TRUE;
1156 }
1157 break;
1158
1159 case RSVP_OBJ_RESTART_CAPABILITY:
1160 switch(rsvp_obj_ctype) {
1161 case RSVP_CTYPE_1:
1162 if (obj_tlen < 8)
1163 return-1;
1164 ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums",
1165 indent,
1166 EXTRACT_BE_U_4(obj_tptr),
1167 EXTRACT_BE_U_4(obj_tptr + 4));
1168 obj_tlen-=8;
1169 obj_tptr+=8;
1170 break;
1171 default:
1172 hexdump=TRUE;
1173 }
1174 break;
1175
1176 case RSVP_OBJ_SESSION_ATTRIBUTE:
1177 switch(rsvp_obj_ctype) {
1178 case RSVP_CTYPE_TUNNEL_IPV4:
1179 if (obj_tlen < 4)
1180 return-1;
1181 namelen = EXTRACT_U_1(obj_tptr + 3);
1182 if (obj_tlen < 4+namelen)
1183 return-1;
1184 ND_PRINT("%s Session Name: ", indent);
1185 for (i = 0; i < namelen; i++)
1186 fn_print_char(ndo, EXTRACT_U_1(obj_tptr + 4 + i));
1187 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1188 indent,
1189 EXTRACT_U_1(obj_tptr),
1190 EXTRACT_U_1(obj_tptr + 1),
1191 bittok2str(rsvp_session_attribute_flag_values,
1192 "none",
1193 EXTRACT_U_1((obj_tptr + 2))),
1194 EXTRACT_U_1(obj_tptr + 2));
1195 obj_tlen-=4+namelen;
1196 obj_tptr+=4+namelen;
1197 break;
1198 default:
1199 hexdump=TRUE;
1200 }
1201 break;
1202
1203 case RSVP_OBJ_GENERALIZED_UNI:
1204 switch(rsvp_obj_ctype) {
1205 u_int subobj_type,af,subobj_len,total_subobj_len;
1206
1207 case RSVP_CTYPE_1:
1208
1209 if (obj_tlen < 4)
1210 return-1;
1211
1212 /* read variable length subobjects */
1213 total_subobj_len = obj_tlen;
1214 while(total_subobj_len > 0) {
1215 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1216 * GENERALIZED_UNI RSVP object must have the Length field as
1217 * a multiple of 4, instead of the check below it would be
1218 * better to test total_subobj_len only once before the loop.
1219 * So long as it does not define it and this while loop does
1220 * not implement such a requirement, let's accept that within
1221 * each iteration subobj_len may happen to be a multiple of 1
1222 * and test it and total_subobj_len respectively.
1223 */
1224 if (total_subobj_len < 4)
1225 goto invalid;
1226 subobj_len = EXTRACT_BE_U_2(obj_tptr);
1227 subobj_type = (EXTRACT_BE_U_2(obj_tptr + 2))>>8;
1228 af = (EXTRACT_BE_U_2(obj_tptr + 2))&0x00FF;
1229
1230 ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1231 indent,
1232 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1233 subobj_type,
1234 tok2str(af_values, "Unknown", af), af,
1235 subobj_len);
1236
1237 /* In addition to what is explained above, the same spec does not
1238 * explicitly say that the same Length field includes the 4-octet
1239 * sub-object header, but as long as this while loop implements it
1240 * as it does include, let's keep the check below consistent with
1241 * the rest of the code.
1242 *
1243 * XXX - RFC 3476 Section 3.1 says "The contents of these
1244 * sub-objects are described in [8]", where [8] is
1245 * UNI 1.0 Signaling Specification, The Optical
1246 * Internetworking Forum. The URL they give for that
1247 * document is
1248 *
1249 * http://www.oiforum.com/public/UNI_1.0_ia.html
1250 *
1251 * but that doesn't work; the new URL appears to be
1252 *
1253 * http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf
1254 *
1255 * and *that* document, in section 12.5.2.3
1256 * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))",
1257 * says nothing about the length field in general, but
1258 * some of the examples it gives in subsections have
1259 * length field values that clearly includes the length
1260 * of the sub-object header as well as the length of the
1261 * value.
1262 */
1263 if(subobj_len < 4 || subobj_len > total_subobj_len ||
1264 obj_tlen < subobj_len)
1265 goto invalid;
1266
1267 switch(subobj_type) {
1268 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1269 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1270
1271 switch(af) {
1272 case AFNUM_INET:
1273 if (subobj_len < 8)
1274 return -1;
1275 ND_PRINT("%s UNI IPv4 TNA address: %s",
1276 indent, ipaddr_string(ndo, obj_tptr + 4));
1277 break;
1278 case AFNUM_INET6:
1279 if (subobj_len < 20)
1280 return -1;
1281 ND_PRINT("%s UNI IPv6 TNA address: %s",
1282 indent, ip6addr_string(ndo, obj_tptr + 4));
1283 break;
1284 case AFNUM_NSAP:
1285 if (subobj_len) {
1286 /* unless we have a TLV parser lets just hexdump */
1287 hexdump=TRUE;
1288 }
1289 break;
1290 }
1291 break;
1292
1293 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1294 if (subobj_len > 4) {
1295 /* unless we have a TLV parser lets just hexdump */
1296 hexdump=TRUE;
1297 }
1298 break;
1299
1300 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1301 if (subobj_len < 16) {
1302 return -1;
1303 }
1304
1305 ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1306 indent,
1307 ((EXTRACT_BE_U_4(obj_tptr + 4))>>31),
1308 ((EXTRACT_BE_U_4(obj_tptr + 4))&0xFF),
1309 EXTRACT_BE_U_4(obj_tptr + 8),
1310 EXTRACT_BE_U_4(obj_tptr + 12));
1311 break;
1312
1313 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1314 if (subobj_len < 8) {
1315 return -1;
1316 }
1317
1318 ND_PRINT("%s Service level: %u",
1319 indent, (EXTRACT_BE_U_4(obj_tptr + 4)) >> 24);
1320 break;
1321
1322 default:
1323 hexdump=TRUE;
1324 break;
1325 }
1326 total_subobj_len-=subobj_len;
1327 obj_tptr+=subobj_len;
1328 obj_tlen+=subobj_len;
1329 }
1330 break;
1331
1332 default:
1333 hexdump=TRUE;
1334 }
1335 break;
1336
1337 case RSVP_OBJ_RSVP_HOP:
1338 switch(rsvp_obj_ctype) {
1339 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1340 case RSVP_CTYPE_IPV4:
1341 if (obj_tlen < 8)
1342 return-1;
1343 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1344 indent,
1345 ipaddr_string(ndo, obj_tptr),
1346 EXTRACT_BE_U_4(obj_tptr + 4));
1347 obj_tlen-=8;
1348 obj_tptr+=8;
1349 if (obj_tlen)
1350 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1351 break;
1352 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1353 case RSVP_CTYPE_IPV6:
1354 if (obj_tlen < 20)
1355 return-1;
1356 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1357 indent,
1358 ip6addr_string(ndo, obj_tptr),
1359 EXTRACT_BE_U_4(obj_tptr + 16));
1360 obj_tlen-=20;
1361 obj_tptr+=20;
1362 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1363 break;
1364 default:
1365 hexdump=TRUE;
1366 }
1367 break;
1368
1369 case RSVP_OBJ_TIME_VALUES:
1370 switch(rsvp_obj_ctype) {
1371 case RSVP_CTYPE_1:
1372 if (obj_tlen < 4)
1373 return-1;
1374 ND_PRINT("%s Refresh Period: %ums",
1375 indent,
1376 EXTRACT_BE_U_4(obj_tptr));
1377 obj_tlen-=4;
1378 obj_tptr+=4;
1379 break;
1380 default:
1381 hexdump=TRUE;
1382 }
1383 break;
1384
1385 /* those three objects do share the same semantics */
1386 case RSVP_OBJ_SENDER_TSPEC:
1387 case RSVP_OBJ_ADSPEC:
1388 case RSVP_OBJ_FLOWSPEC:
1389 switch(rsvp_obj_ctype) {
1390 case RSVP_CTYPE_2:
1391 if (obj_tlen < 4)
1392 return-1;
1393 ND_PRINT("%s Msg-Version: %u, length: %u",
1394 indent,
1395 (EXTRACT_U_1(obj_tptr) & 0xf0) >> 4,
1396 EXTRACT_BE_U_2(obj_tptr + 2) << 2);
1397 obj_tptr+=4; /* get to the start of the service header */
1398 obj_tlen-=4;
1399
1400 while (obj_tlen >= 4) {
1401 intserv_serv_tlen=EXTRACT_BE_U_2(obj_tptr + 2)<<2;
1402 ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u",
1403 indent,
1404 tok2str(rsvp_intserv_service_type_values,"unknown",EXTRACT_U_1((obj_tptr))),
1405 EXTRACT_U_1(obj_tptr),
1406 (EXTRACT_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
1407 intserv_serv_tlen);
1408
1409 obj_tptr+=4; /* get to the start of the parameter list */
1410 obj_tlen-=4;
1411
1412 while (intserv_serv_tlen>=4) {
1413 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1414 if (processed == 0)
1415 break;
1416 obj_tlen-=processed;
1417 intserv_serv_tlen-=processed;
1418 obj_tptr+=processed;
1419 }
1420 }
1421 break;
1422 default:
1423 hexdump=TRUE;
1424 }
1425 break;
1426
1427 case RSVP_OBJ_FILTERSPEC:
1428 switch(rsvp_obj_ctype) {
1429 case RSVP_CTYPE_IPV4:
1430 if (obj_tlen < 8)
1431 return-1;
1432 ND_PRINT("%s Source Address: %s, Source Port: %u",
1433 indent,
1434 ipaddr_string(ndo, obj_tptr),
1435 EXTRACT_BE_U_2(obj_tptr + 6));
1436 obj_tlen-=8;
1437 obj_tptr+=8;
1438 break;
1439 case RSVP_CTYPE_IPV6:
1440 if (obj_tlen < 20)
1441 return-1;
1442 ND_PRINT("%s Source Address: %s, Source Port: %u",
1443 indent,
1444 ip6addr_string(ndo, obj_tptr),
1445 EXTRACT_BE_U_2(obj_tptr + 18));
1446 obj_tlen-=20;
1447 obj_tptr+=20;
1448 break;
1449 case RSVP_CTYPE_3:
1450 if (obj_tlen < 20)
1451 return-1;
1452 ND_PRINT("%s Source Address: %s, Flow Label: %u",
1453 indent,
1454 ip6addr_string(ndo, obj_tptr),
1455 EXTRACT_BE_U_3(obj_tptr + 17));
1456 obj_tlen-=20;
1457 obj_tptr+=20;
1458 break;
1459 case RSVP_CTYPE_TUNNEL_IPV6:
1460 if (obj_tlen < 20)
1461 return-1;
1462 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1463 indent,
1464 ipaddr_string(ndo, obj_tptr),
1465 EXTRACT_BE_U_2(obj_tptr + 18));
1466 obj_tlen-=20;
1467 obj_tptr+=20;
1468 break;
1469 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1470 if (obj_tlen < 40)
1471 return-1;
1472 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1473 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1474 indent,
1475 ip6addr_string(ndo, obj_tptr),
1476 EXTRACT_BE_U_2(obj_tptr + 18),
1477 indent,
1478 ip6addr_string(ndo, obj_tptr+20),
1479 EXTRACT_BE_U_2(obj_tptr + 38));
1480 obj_tlen-=40;
1481 obj_tptr+=40;
1482 break;
1483 case RSVP_CTYPE_TUNNEL_IPV4:
1484 if (obj_tlen < 8)
1485 return-1;
1486 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1487 indent,
1488 ipaddr_string(ndo, obj_tptr),
1489 EXTRACT_BE_U_2(obj_tptr + 6));
1490 obj_tlen-=8;
1491 obj_tptr+=8;
1492 break;
1493 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1494 if (obj_tlen < 16)
1495 return-1;
1496 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1497 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1498 indent,
1499 ipaddr_string(ndo, obj_tptr),
1500 EXTRACT_BE_U_2(obj_tptr + 6),
1501 indent,
1502 ipaddr_string(ndo, obj_tptr+8),
1503 EXTRACT_BE_U_2(obj_tptr + 12));
1504 obj_tlen-=16;
1505 obj_tptr+=16;
1506 break;
1507 default:
1508 hexdump=TRUE;
1509 }
1510 break;
1511
1512 case RSVP_OBJ_FASTREROUTE:
1513 /* the differences between c-type 1 and 7 are minor */
1514 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1515
1516 switch(rsvp_obj_ctype) {
1517 case RSVP_CTYPE_1: /* new style */
1518 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1519 return-1;
1520 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1521 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1522 indent,
1523 obj_ptr.rsvp_obj_frr->setup_prio,
1524 obj_ptr.rsvp_obj_frr->hold_prio,
1525 obj_ptr.rsvp_obj_frr->hop_limit,
1526 bw.f * 8 / 1000000);
1527 ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1528 indent,
1529 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1530 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
1531 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_all));
1532 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1533 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1534 break;
1535
1536 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1537 if (obj_tlen < 16)
1538 return-1;
1539 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1540 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1541 indent,
1542 obj_ptr.rsvp_obj_frr->setup_prio,
1543 obj_ptr.rsvp_obj_frr->hold_prio,
1544 obj_ptr.rsvp_obj_frr->hop_limit,
1545 bw.f * 8 / 1000000);
1546 ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1547 indent,
1548 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1549 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any));
1550 obj_tlen-=16;
1551 obj_tptr+=16;
1552 break;
1553
1554 default:
1555 hexdump=TRUE;
1556 }
1557 break;
1558
1559 case RSVP_OBJ_DETOUR:
1560 switch(rsvp_obj_ctype) {
1561 case RSVP_CTYPE_TUNNEL_IPV4:
1562 while(obj_tlen >= 8) {
1563 ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s",
1564 indent,
1565 ipaddr_string(ndo, obj_tptr),
1566 ipaddr_string(ndo, obj_tptr + 4));
1567 obj_tlen-=8;
1568 obj_tptr+=8;
1569 }
1570 break;
1571 default:
1572 hexdump=TRUE;
1573 }
1574 break;
1575
1576 case RSVP_OBJ_CLASSTYPE:
1577 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1578 switch(rsvp_obj_ctype) {
1579 case RSVP_CTYPE_1:
1580 ND_PRINT("%s CT: %u",
1581 indent,
1582 EXTRACT_BE_U_4(obj_tptr) & 0x7);
1583 obj_tlen-=4;
1584 obj_tptr+=4;
1585 break;
1586 default:
1587 hexdump=TRUE;
1588 }
1589 break;
1590
1591 case RSVP_OBJ_ERROR_SPEC:
1592 switch(rsvp_obj_ctype) {
1593 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1594 case RSVP_CTYPE_IPV4:
1595 if (obj_tlen < 8)
1596 return-1;
1597 error_code=EXTRACT_U_1(obj_tptr + 5);
1598 error_value=EXTRACT_BE_U_2(obj_tptr + 6);
1599 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1600 indent,
1601 ipaddr_string(ndo, obj_tptr),
1602 EXTRACT_U_1(obj_tptr + 4),
1603 indent,
1604 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1605 error_code);
1606 switch (error_code) {
1607 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1608 ND_PRINT(", Error Value: %s (%u)",
1609 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1610 error_value);
1611 break;
1612 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1613 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1614 ND_PRINT(", Error Value: %s (%u)",
1615 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1616 error_value);
1617 break;
1618 default:
1619 ND_PRINT(", Unknown Error Value (%u)", error_value);
1620 break;
1621 }
1622 obj_tlen-=8;
1623 obj_tptr+=8;
1624 break;
1625 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1626 case RSVP_CTYPE_IPV6:
1627 if (obj_tlen < 20)
1628 return-1;
1629 error_code=EXTRACT_U_1(obj_tptr + 17);
1630 error_value=EXTRACT_BE_U_2(obj_tptr + 18);
1631 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1632 indent,
1633 ip6addr_string(ndo, obj_tptr),
1634 EXTRACT_U_1(obj_tptr + 16),
1635 indent,
1636 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1637 error_code);
1638
1639 switch (error_code) {
1640 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1641 ND_PRINT(", Error Value: %s (%u)",
1642 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1643 error_value);
1644 break;
1645 default:
1646 break;
1647 }
1648 obj_tlen-=20;
1649 obj_tptr+=20;
1650 break;
1651 default:
1652 hexdump=TRUE;
1653 }
1654 break;
1655
1656 case RSVP_OBJ_PROPERTIES:
1657 switch(rsvp_obj_ctype) {
1658 case RSVP_CTYPE_1:
1659 if (obj_tlen < 4)
1660 return-1;
1661 padbytes = EXTRACT_BE_U_2(obj_tptr + 2);
1662 ND_PRINT("%s TLV count: %u, padding bytes: %u",
1663 indent,
1664 EXTRACT_BE_U_2(obj_tptr),
1665 padbytes);
1666 obj_tlen-=4;
1667 obj_tptr+=4;
1668 /* loop through as long there is anything longer than the TLV header (2) */
1669 while(obj_tlen >= 2 + padbytes) {
1670 ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */
1671 indent,
1672 tok2str(rsvp_obj_prop_tlv_values,"unknown",EXTRACT_U_1(obj_tptr)),
1673 EXTRACT_U_1(obj_tptr),
1674 EXTRACT_U_1(obj_tptr + 1));
1675 if (obj_tlen < EXTRACT_U_1(obj_tptr + 1))
1676 return-1;
1677 if (EXTRACT_U_1(obj_tptr + 1) < 2)
1678 return -1;
1679 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
1680 EXTRACT_U_1(obj_tptr + 1) - 2);
1681 obj_tlen-=EXTRACT_U_1(obj_tptr + 1);
1682 obj_tptr+=EXTRACT_U_1(obj_tptr + 1);
1683 }
1684 break;
1685 default:
1686 hexdump=TRUE;
1687 }
1688 break;
1689
1690 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1691 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1692 case RSVP_OBJ_MESSAGE_ID_LIST:
1693 switch(rsvp_obj_ctype) {
1694 case RSVP_CTYPE_1:
1695 case RSVP_CTYPE_2:
1696 if (obj_tlen < 8)
1697 return-1;
1698 ND_PRINT("%s Flags [0x%02x], epoch: %u",
1699 indent,
1700 EXTRACT_U_1(obj_tptr),
1701 EXTRACT_BE_U_3(obj_tptr + 1));
1702 obj_tlen-=4;
1703 obj_tptr+=4;
1704 /* loop through as long there are no messages left */
1705 while(obj_tlen >= 4) {
1706 ND_PRINT("%s Message-ID 0x%08x (%u)",
1707 indent,
1708 EXTRACT_BE_U_4(obj_tptr),
1709 EXTRACT_BE_U_4(obj_tptr));
1710 obj_tlen-=4;
1711 obj_tptr+=4;
1712 }
1713 break;
1714 default:
1715 hexdump=TRUE;
1716 }
1717 break;
1718
1719 case RSVP_OBJ_INTEGRITY:
1720 switch(rsvp_obj_ctype) {
1721 case RSVP_CTYPE_1:
1722 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1723 return-1;
1724 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1725 ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1726 indent,
1727 EXTRACT_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
1728 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
1729 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
1730 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
1731 bittok2str(rsvp_obj_integrity_flag_values,
1732 "none",
1733 obj_ptr.rsvp_obj_integrity->flags));
1734 ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ",
1735 indent,
1736 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
1737 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
1738 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
1739 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12));
1740
1741 sigcheck = signature_verify(ndo, pptr, plen,
1742 obj_ptr.rsvp_obj_integrity->digest,
1743 rsvp_clear_checksum,
1744 rsvp_com_header);
1745 ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
1746
1747 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1748 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1749 break;
1750 default:
1751 hexdump=TRUE;
1752 }
1753 break;
1754
1755 case RSVP_OBJ_ADMIN_STATUS:
1756 switch(rsvp_obj_ctype) {
1757 case RSVP_CTYPE_1:
1758 if (obj_tlen < 4)
1759 return-1;
1760 ND_PRINT("%s Flags [%s]", indent,
1761 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1762 EXTRACT_BE_U_4(obj_tptr)));
1763 obj_tlen-=4;
1764 obj_tptr+=4;
1765 break;
1766 default:
1767 hexdump=TRUE;
1768 }
1769 break;
1770
1771 case RSVP_OBJ_LABEL_SET:
1772 switch(rsvp_obj_ctype) {
1773 case RSVP_CTYPE_1:
1774 if (obj_tlen < 4)
1775 return-1;
1776 action = (EXTRACT_BE_U_2(obj_tptr)>>8);
1777
1778 ND_PRINT("%s Action: %s (%u), Label type: %u", indent,
1779 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1780 action, (EXTRACT_BE_U_4(obj_tptr) & 0x7F));
1781
1782 switch (action) {
1783 case LABEL_SET_INCLUSIVE_RANGE:
1784 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1785
1786 /* only a couple of subchannels are expected */
1787 if (obj_tlen < 12)
1788 return -1;
1789 ND_PRINT("%s Start range: %u, End range: %u", indent,
1790 EXTRACT_BE_U_4(obj_tptr + 4),
1791 EXTRACT_BE_U_4(obj_tptr + 8));
1792 obj_tlen-=12;
1793 obj_tptr+=12;
1794 break;
1795
1796 default:
1797 obj_tlen-=4;
1798 obj_tptr+=4;
1799 subchannel = 1;
1800 while(obj_tlen >= 4 ) {
1801 ND_PRINT("%s Subchannel #%u: %u", indent, subchannel,
1802 EXTRACT_BE_U_4(obj_tptr));
1803 obj_tptr+=4;
1804 obj_tlen-=4;
1805 subchannel++;
1806 }
1807 break;
1808 }
1809 break;
1810 default:
1811 hexdump=TRUE;
1812 }
1813 break;
1814
1815 case RSVP_OBJ_S2L:
1816 switch (rsvp_obj_ctype) {
1817 case RSVP_CTYPE_IPV4:
1818 if (obj_tlen < 4)
1819 return-1;
1820 ND_PRINT("%s Sub-LSP destination address: %s",
1821 indent, ipaddr_string(ndo, obj_tptr));
1822
1823 obj_tlen-=4;
1824 obj_tptr+=4;
1825 break;
1826 case RSVP_CTYPE_IPV6:
1827 if (obj_tlen < 16)
1828 return-1;
1829 ND_PRINT("%s Sub-LSP destination address: %s",
1830 indent, ip6addr_string(ndo, obj_tptr));
1831
1832 obj_tlen-=16;
1833 obj_tptr+=16;
1834 break;
1835 default:
1836 hexdump=TRUE;
1837 }
1838 break;
1839
1840 /*
1841 * FIXME those are the defined objects that lack a decoder
1842 * you are welcome to contribute code ;-)
1843 */
1844
1845 case RSVP_OBJ_SCOPE:
1846 case RSVP_OBJ_POLICY_DATA:
1847 case RSVP_OBJ_ACCEPT_LABEL_SET:
1848 case RSVP_OBJ_PROTECTION:
1849 default:
1850 if (ndo->ndo_vflag <= 1)
1851 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1852 break;
1853 }
1854 /* do we also want to see a hex dump ? */
1855 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1856 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1857 rsvp_obj_len - sizeof(struct rsvp_object_header));
1858
1859 tptr+=rsvp_obj_len;
1860 tlen-=rsvp_obj_len;
1861 }
1862 return 0;
1863 invalid:
1864 nd_print_invalid(ndo);
1865 return -1;
1866 trunc:
1867 nd_print_trunc(ndo);
1868 return -1;
1869 }
1870
1871 void
1872 rsvp_print(netdissect_options *ndo,
1873 const u_char *pptr, u_int len)
1874 {
1875 const struct rsvp_common_header *rsvp_com_header;
1876 uint8_t version_flags, msg_type;
1877 const u_char *tptr;
1878 u_short plen, tlen;
1879
1880 ndo->ndo_protocol = "rsvp";
1881 tptr=pptr;
1882
1883 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1884 ND_TCHECK_SIZE(rsvp_com_header);
1885 version_flags = EXTRACT_U_1(rsvp_com_header->version_flags);
1886
1887 /*
1888 * Sanity checking of the header.
1889 */
1890 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1891 ND_PRINT("ERROR: RSVP version %u packet not supported",
1892 RSVP_EXTRACT_VERSION(version_flags));
1893 return;
1894 }
1895
1896 msg_type = EXTRACT_U_1(rsvp_com_header->msg_type);
1897
1898 /* in non-verbose mode just lets print the basic Message Type*/
1899 if (ndo->ndo_vflag < 1) {
1900 ND_PRINT("RSVPv%u %s Message, length: %u",
1901 RSVP_EXTRACT_VERSION(version_flags),
1902 tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type),
1903 len);
1904 return;
1905 }
1906
1907 /* ok they seem to want to know everything - lets fully decode it */
1908
1909 plen = tlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1910
1911 ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1912 RSVP_EXTRACT_VERSION(version_flags),
1913 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1914 msg_type,
1915 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1916 tlen,
1917 EXTRACT_U_1(rsvp_com_header->ttl),
1918 EXTRACT_BE_U_2(rsvp_com_header->checksum));
1919
1920 if (tlen < sizeof(struct rsvp_common_header)) {
1921 ND_PRINT("ERROR: common header too short %u < %lu", tlen,
1922 (unsigned long)sizeof(struct rsvp_common_header));
1923 return;
1924 }
1925
1926 tptr+=sizeof(struct rsvp_common_header);
1927 tlen-=sizeof(struct rsvp_common_header);
1928
1929 switch(msg_type) {
1930
1931 case RSVP_MSGTYPE_BUNDLE:
1932 /*
1933 * Process each submessage in the bundle message.
1934 * Bundle messages may not contain bundle submessages, so we don't
1935 * need to handle bundle submessages specially.
1936 */
1937 while(tlen > 0) {
1938 const u_char *subpptr=tptr, *subtptr;
1939 u_short subplen, subtlen;
1940
1941 subtptr=subpptr;
1942
1943 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1944 ND_TCHECK_SIZE(rsvp_com_header);
1945 version_flags = EXTRACT_U_1(rsvp_com_header->version_flags);
1946
1947 /*
1948 * Sanity checking of the header.
1949 */
1950 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1951 ND_PRINT("ERROR: RSVP version %u packet not supported",
1952 RSVP_EXTRACT_VERSION(version_flags));
1953 return;
1954 }
1955
1956 subplen = subtlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1957
1958 msg_type = EXTRACT_U_1(rsvp_com_header->msg_type);
1959 ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1960 RSVP_EXTRACT_VERSION(version_flags),
1961 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1962 msg_type,
1963 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1964 subtlen,
1965 EXTRACT_U_1(rsvp_com_header->ttl),
1966 EXTRACT_BE_U_2(rsvp_com_header->checksum));
1967
1968 if (subtlen < sizeof(struct rsvp_common_header)) {
1969 ND_PRINT("ERROR: common header too short %u < %lu", subtlen,
1970 (unsigned long)sizeof(struct rsvp_common_header));
1971 return;
1972 }
1973
1974 if (tlen < subtlen) {
1975 ND_PRINT("ERROR: common header too large %u > %u", subtlen,
1976 tlen);
1977 return;
1978 }
1979
1980 subtptr+=sizeof(struct rsvp_common_header);
1981 subtlen-=sizeof(struct rsvp_common_header);
1982
1983 /*
1984 * Print all objects in the submessage.
1985 */
1986 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
1987 return;
1988
1989 tptr+=subtlen+sizeof(struct rsvp_common_header);
1990 tlen-=subtlen+sizeof(struct rsvp_common_header);
1991 }
1992
1993 break;
1994
1995 case RSVP_MSGTYPE_PATH:
1996 case RSVP_MSGTYPE_RESV:
1997 case RSVP_MSGTYPE_PATHERR:
1998 case RSVP_MSGTYPE_RESVERR:
1999 case RSVP_MSGTYPE_PATHTEAR:
2000 case RSVP_MSGTYPE_RESVTEAR:
2001 case RSVP_MSGTYPE_RESVCONF:
2002 case RSVP_MSGTYPE_HELLO_OLD:
2003 case RSVP_MSGTYPE_HELLO:
2004 case RSVP_MSGTYPE_ACK:
2005 case RSVP_MSGTYPE_SREFRESH:
2006 /*
2007 * Print all objects in the message.
2008 */
2009 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
2010 return;
2011 break;
2012
2013 default:
2014 print_unknown_data(ndo, tptr, "\n\t ", tlen);
2015 break;
2016 }
2017
2018 return;
2019 trunc:
2020 nd_print_trunc(ndo);
2021 }
[mirror] the TCPdump network dissector