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1 /*
2 * Copyright (c) 1998-2007 The TCPDUMP project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that: (1) source code
6 * distributions retain the above copyright notice and this paragraph
7 * in its entirety, and (2) distributions including binary code include
8 * the above copyright notice and this paragraph in its entirety in
9 * the documentation or other materials provided with the distribution.
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
13 * FOR A PARTICULAR PURPOSE.
14 *
15 * Original code by Hannes Gredler (hannes@gredler.at)
16 */
17
18 /* \summary: Resource ReSerVation Protocol (RSVP) printer */
19
20 /* specification: RFC 2205 */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include "netdissect-stdinc.h"
27
28 #define ND_LONGJMP_FROM_TCHECK
29 #include "netdissect.h"
30 #include "extract.h"
31 #include "addrtoname.h"
32 #include "ethertype.h"
33 #include "gmpls.h"
34 #include "af.h"
35 #include "signature.h"
36
37
38 /*
39 * RFC 2205 common header
40 *
41 * 0 1 2 3
42 * +-------------+-------------+-------------+-------------+
43 * | Vers | Flags| Msg Type | RSVP Checksum |
44 * +-------------+-------------+-------------+-------------+
45 * | Send_TTL | (Reserved) | RSVP Length |
46 * +-------------+-------------+-------------+-------------+
47 *
48 */
49
50 struct rsvp_common_header {
51 nd_uint8_t version_flags;
52 nd_uint8_t msg_type;
53 nd_uint16_t checksum;
54 nd_uint8_t ttl;
55 nd_byte reserved[1];
56 nd_uint16_t length;
57 };
58
59 /*
60 * RFC2205 object header
61 *
62 *
63 * 0 1 2 3
64 * +-------------+-------------+-------------+-------------+
65 * | Length (bytes) | Class-Num | C-Type |
66 * +-------------+-------------+-------------+-------------+
67 * | |
68 * // (Object contents) //
69 * | |
70 * +-------------+-------------+-------------+-------------+
71 */
72
73 struct rsvp_object_header {
74 nd_uint16_t length;
75 nd_uint8_t class_num;
76 nd_uint8_t ctype;
77 };
78
79 #define RSVP_VERSION 1
80 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
81 #define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f)
82
83 #define RSVP_MSGTYPE_PATH 1
84 #define RSVP_MSGTYPE_RESV 2
85 #define RSVP_MSGTYPE_PATHERR 3
86 #define RSVP_MSGTYPE_RESVERR 4
87 #define RSVP_MSGTYPE_PATHTEAR 5
88 #define RSVP_MSGTYPE_RESVTEAR 6
89 #define RSVP_MSGTYPE_RESVCONF 7
90 #define RSVP_MSGTYPE_BUNDLE 12
91 #define RSVP_MSGTYPE_ACK 13
92 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
93 #define RSVP_MSGTYPE_SREFRESH 15
94 #define RSVP_MSGTYPE_HELLO 20
95
96 static const struct tok rsvp_msg_type_values[] = {
97 { RSVP_MSGTYPE_PATH, "Path" },
98 { RSVP_MSGTYPE_RESV, "Resv" },
99 { RSVP_MSGTYPE_PATHERR, "PathErr" },
100 { RSVP_MSGTYPE_RESVERR, "ResvErr" },
101 { RSVP_MSGTYPE_PATHTEAR, "PathTear" },
102 { RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
103 { RSVP_MSGTYPE_RESVCONF, "ResvConf" },
104 { RSVP_MSGTYPE_BUNDLE, "Bundle" },
105 { RSVP_MSGTYPE_ACK, "Acknowledgement" },
106 { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
107 { RSVP_MSGTYPE_SREFRESH, "Refresh" },
108 { RSVP_MSGTYPE_HELLO, "Hello" },
109 { 0, NULL}
110 };
111
112 static const struct tok rsvp_header_flag_values[] = {
113 { 0x01, "Refresh reduction capable" }, /* rfc2961 */
114 { 0, NULL}
115 };
116
117 static const struct tok rsvp_obj_capability_flag_values[] = {
118 { 0x0004, "RecoveryPath Transmit Enabled" },
119 { 0x0002, "RecoveryPath Desired" },
120 { 0x0001, "RecoveryPath Srefresh Capable" },
121 { 0, NULL}
122 };
123
124 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
125 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
126 #define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
127 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
128 #define RSVP_OBJ_ERROR_SPEC 6
129 #define RSVP_OBJ_SCOPE 7
130 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
131 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
132 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
133 #define RSVP_OBJ_SENDER_TEMPLATE 11
134 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
135 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
136 #define RSVP_OBJ_POLICY_DATA 14
137 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
138 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
139 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
140 #define RSVP_OBJ_ERO 20 /* rfc3209 */
141 #define RSVP_OBJ_RRO 21 /* rfc3209 */
142 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
143 #define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */
144 #define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */
145 #define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */
146 #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
147 #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
148 #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
149 #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
150 #define RSVP_OBJ_S2L 50 /* rfc4875 */
151 #define RSVP_OBJ_DETOUR 63 /* rfc4090 */
152 #define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
153 #define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
154 #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
155 #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
156 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
157 #define RSVP_OBJ_CAPABILITY 134 /* rfc5063 */
158 #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
159 #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
160 #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
161 #define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */
162 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
163 #define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
164 #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
165 #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
166
167 static const struct tok rsvp_obj_values[] = {
168 { RSVP_OBJ_SESSION, "Session" },
169 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
170 { RSVP_OBJ_INTEGRITY, "Integrity" },
171 { RSVP_OBJ_TIME_VALUES, "Time Values" },
172 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
173 { RSVP_OBJ_SCOPE, "Scope" },
174 { RSVP_OBJ_STYLE, "Style" },
175 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
176 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
177 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
178 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
179 { RSVP_OBJ_ADSPEC, "Adspec" },
180 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
181 { RSVP_OBJ_CONFIRM, "Confirm" },
182 { RSVP_OBJ_LABEL, "Label" },
183 { RSVP_OBJ_LABEL_REQ, "Label Request" },
184 { RSVP_OBJ_ERO, "ERO" },
185 { RSVP_OBJ_RRO, "RRO" },
186 { RSVP_OBJ_HELLO, "Hello" },
187 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
188 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
189 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
190 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
191 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
192 { RSVP_OBJ_LABEL_SET, "Label Set" },
193 { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
194 { RSVP_OBJ_DETOUR, "Detour" },
195 { RSVP_OBJ_CLASSTYPE, "Class Type" },
196 { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" },
197 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
198 { RSVP_OBJ_PROPERTIES, "Properties" },
199 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
200 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
201 { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" },
202 { RSVP_OBJ_CALL_ID, "Call-ID" },
203 { RSVP_OBJ_CALL_OPS, "Call Capability" },
204 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
205 { RSVP_OBJ_CAPABILITY, "Capability" },
206 { RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
207 { RSVP_OBJ_PROTECTION, "Protection" },
208 { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
209 { RSVP_OBJ_S2L, "Sub-LSP to LSP" },
210 { 0, NULL}
211 };
212
213 #define RSVP_CTYPE_IPV4 1
214 #define RSVP_CTYPE_IPV6 2
215 #define RSVP_CTYPE_TUNNEL_IPV4 7
216 #define RSVP_CTYPE_TUNNEL_IPV6 8
217 #define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */
218 #define RSVP_CTYPE_1 1
219 #define RSVP_CTYPE_2 2
220 #define RSVP_CTYPE_3 3
221 #define RSVP_CTYPE_4 4
222 #define RSVP_CTYPE_12 12
223 #define RSVP_CTYPE_13 13
224 #define RSVP_CTYPE_14 14
225
226 /*
227 * the ctypes are not globally unique so for
228 * translating it to strings we build a table based
229 * on objects offsetted by the ctype
230 */
231
232 static const struct tok rsvp_ctype_values[] = {
233 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
234 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
235 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
236 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
237 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
238 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
239 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
240 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
241 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
242 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
243 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
244 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
245 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
246 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
247 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
248 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
249 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
250 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
251 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
252 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
253 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
254 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
255 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" },
256 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" },
257 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" },
258 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
259 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
260 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
261 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
262 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
263 { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
264 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" },
265 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" },
266 { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
267 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
268 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
269 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
270 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
271 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
272 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
273 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
274 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
275 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
276 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
277 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
278 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
279 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
280 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
281 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
282 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
283 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
284 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
285 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
286 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
287 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
288 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
289 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
290 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
291 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
292 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
293 { 256*RSVP_OBJ_CAPABILITY+RSVP_CTYPE_1, "1" },
294 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
295 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
296 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
297 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
298 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
299 { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" },
300 { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
301 { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" },
302 { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" },
303 { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" },
304 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" },
305 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" },
306 { 0, NULL}
307 };
308
309 /*
310 * XXX - this assumes a 16-byte digest, which is true for HMAC-MD5, but
311 * isn't necessarily the case for other hash algorithms.
312 *
313 * Unless I've missed something, there's nothing in RFC 2747 to indicate
314 * the hash algorithm being used, so it's presumably something set up
315 * out-of-band, or negotiated by other RSVP objects.
316 */
317 struct rsvp_obj_integrity_t {
318 nd_uint8_t flags;
319 nd_uint8_t res;
320 nd_byte key_id[6];
321 nd_byte sequence[8];
322 nd_byte digest[16];
323 };
324
325 static const struct tok rsvp_obj_integrity_flag_values[] = {
326 { 0x80, "Handshake" },
327 { 0, NULL}
328 };
329
330 struct rsvp_obj_frr_t {
331 nd_uint8_t setup_prio;
332 nd_uint8_t hold_prio;
333 nd_uint8_t hop_limit;
334 nd_uint8_t flags;
335 nd_float bandwidth;
336 nd_uint32_t include_any;
337 nd_uint32_t exclude_any;
338 nd_uint32_t include_all;
339 };
340
341
342 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
343 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
344
345 #define RSVP_OBJ_CAPABILITY_FLAGS_MASK 0x7U
346
347 #define RSVP_OBJ_XRO_RES 0
348 #define RSVP_OBJ_XRO_IPV4 1
349 #define RSVP_OBJ_XRO_IPV6 2
350 #define RSVP_OBJ_XRO_LABEL 3
351 #define RSVP_OBJ_XRO_ASN 32
352 #define RSVP_OBJ_XRO_MPLS 64
353
354 static const struct tok rsvp_obj_xro_values[] = {
355 { RSVP_OBJ_XRO_RES, "Reserved" },
356 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
357 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
358 { RSVP_OBJ_XRO_LABEL, "Label" },
359 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
360 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
361 { 0, NULL}
362 };
363
364 /* RFC4090 */
365 static const struct tok rsvp_obj_rro_flag_values[] = {
366 { 0x01, "Local protection available" },
367 { 0x02, "Local protection in use" },
368 { 0x04, "Bandwidth protection" },
369 { 0x08, "Node protection" },
370 { 0, NULL}
371 };
372
373 /* RFC3209 */
374 static const struct tok rsvp_obj_rro_label_flag_values[] = {
375 { 0x01, "Global" },
376 { 0, NULL}
377 };
378
379 static const struct tok rsvp_resstyle_values[] = {
380 { 17, "Wildcard Filter" },
381 { 10, "Fixed Filter" },
382 { 18, "Shared Explicit" },
383 { 0, NULL}
384 };
385
386 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
387 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
388
389 static const struct tok rsvp_intserv_service_type_values[] = {
390 { 1, "Default/Global Information" },
391 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
392 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
393 { 0, NULL}
394 };
395
396 static const struct tok rsvp_intserv_parameter_id_values[] = {
397 { 4, "IS hop cnt" },
398 { 6, "Path b/w estimate" },
399 { 8, "Minimum path latency" },
400 { 10, "Composed MTU" },
401 { 127, "Token Bucket TSpec" },
402 { 130, "Guaranteed Service RSpec" },
403 { 133, "End-to-end composed value for C" },
404 { 134, "End-to-end composed value for D" },
405 { 135, "Since-last-reshaping point composed C" },
406 { 136, "Since-last-reshaping point composed D" },
407 { 0, NULL}
408 };
409
410 static const struct tok rsvp_session_attribute_flag_values[] = {
411 { 0x01, "Local Protection" },
412 { 0x02, "Label Recording" },
413 { 0x04, "SE Style" },
414 { 0x08, "Bandwidth protection" }, /* RFC4090 */
415 { 0x10, "Node protection" }, /* RFC4090 */
416 { 0, NULL}
417 };
418
419 static const struct tok rsvp_obj_prop_tlv_values[] = {
420 { 0x01, "Cos" },
421 { 0x02, "Metric 1" },
422 { 0x04, "Metric 2" },
423 { 0x08, "CCC Status" },
424 { 0x10, "Path Type" },
425 { 0, NULL}
426 };
427
428 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
429 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
430 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28
431 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125
432
433 static const struct tok rsvp_obj_error_code_values[] = {
434 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
435 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
436 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
437 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" },
438 { 0, NULL}
439 };
440
441 static const struct tok rsvp_obj_error_code_routing_values[] = {
442 { 1, "Bad EXPLICIT_ROUTE object" },
443 { 2, "Bad strict node" },
444 { 3, "Bad loose node" },
445 { 4, "Bad initial subobject" },
446 { 5, "No route available toward destination" },
447 { 6, "Unacceptable label value" },
448 { 7, "RRO indicated routing loops" },
449 { 8, "non-RSVP-capable router in the path" },
450 { 9, "MPLS label allocation failure" },
451 { 10, "Unsupported L3PID" },
452 { 0, NULL}
453 };
454
455 static const struct tok rsvp_obj_error_code_diffserv_te_values[] = {
456 { 1, "Unexpected CT object" },
457 { 2, "Unsupported CT" },
458 { 3, "Invalid CT value" },
459 { 4, "CT/setup priority do not form a configured TE-Class" },
460 { 5, "CT/holding priority do not form a configured TE-Class" },
461 { 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" },
462 { 7, "Inconsistency between signaled PSC and signaled CT" },
463 { 8, "Inconsistency between signaled PHBs and signaled CT" },
464 { 0, NULL}
465 };
466
467 /* rfc3473 / rfc 3471 */
468 static const struct tok rsvp_obj_admin_status_flag_values[] = {
469 { 0x80000000, "Reflect" },
470 { 0x00000004, "Testing" },
471 { 0x00000002, "Admin-down" },
472 { 0x00000001, "Delete-in-progress" },
473 { 0, NULL}
474 };
475
476 /* label set actions - rfc3471 */
477 #define LABEL_SET_INCLUSIVE_LIST 0
478 #define LABEL_SET_EXCLUSIVE_LIST 1
479 #define LABEL_SET_INCLUSIVE_RANGE 2
480 #define LABEL_SET_EXCLUSIVE_RANGE 3
481
482 static const struct tok rsvp_obj_label_set_action_values[] = {
483 { LABEL_SET_INCLUSIVE_LIST, "Inclusive list" },
484 { LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" },
485 { LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" },
486 { LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" },
487 { 0, NULL}
488 };
489
490 /* OIF RSVP extensions UNI 1.0 Signaling, release 2 */
491 #define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1
492 #define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2
493 #define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3
494 #define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4
495 #define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5
496
497 static const struct tok rsvp_obj_generalized_uni_values[] = {
498 { RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" },
499 { RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" },
500 { RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" },
501 { RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" },
502 { RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" },
503 { 0, NULL}
504 };
505
506 /*
507 * this is a dissector for all the intserv defined
508 * specs as defined per rfc2215
509 * it is called from various rsvp objects;
510 * returns the amount of bytes being processed
511 */
512 static u_int
513 rsvp_intserv_print(netdissect_options *ndo,
514 const u_char *tptr, u_int obj_tlen)
515 {
516 u_int parameter_id,parameter_length;
517
518 ND_ICHECK_U(obj_tlen, <, 4);
519 parameter_id = GET_U_1(tptr);
520 parameter_length = GET_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
521
522 ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
523 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
524 parameter_id,
525 parameter_length,
526 GET_U_1(tptr + 1));
527
528 ND_ICHECK_U(obj_tlen, <, parameter_length + 4);
529 switch(parameter_id) { /* parameter_id */
530
531 case 4:
532 /*
533 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
534 * | 4 (e) | (f) | 1 (g) |
535 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
536 * | IS hop cnt (32-bit unsigned integer) |
537 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
538 */
539 if (parameter_length == 4) {
540 ND_PRINT("\n\t\tIS hop count: %u", GET_BE_U_4(tptr + 4));
541 }
542 break;
543
544 case 6:
545 /*
546 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
547 * | 6 (h) | (i) | 1 (j) |
548 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
549 * | Path b/w estimate (32-bit IEEE floating point number) |
550 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
551 */
552 if (parameter_length == 4) {
553 ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps",
554 GET_BE_F_4(tptr + 4) / 125000);
555 }
556 break;
557
558 case 8:
559 /*
560 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
561 * | 8 (k) | (l) | 1 (m) |
562 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
563 * | Minimum path latency (32-bit integer) |
564 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
565 */
566 if (parameter_length == 4) {
567 ND_PRINT("\n\t\tMinimum path latency: ");
568 if (GET_BE_U_4(tptr + 4) == 0xffffffff)
569 ND_PRINT("don't care");
570 else
571 ND_PRINT("%u", GET_BE_U_4(tptr + 4));
572 }
573 break;
574
575 case 10:
576
577 /*
578 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
579 * | 10 (n) | (o) | 1 (p) |
580 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
581 * | Composed MTU (32-bit unsigned integer) |
582 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
583 */
584 if (parameter_length == 4) {
585 ND_PRINT("\n\t\tComposed MTU: %u bytes", GET_BE_U_4(tptr + 4));
586 }
587 break;
588 case 127:
589 /*
590 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
591 * | 127 (e) | 0 (f) | 5 (g) |
592 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
593 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
594 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
595 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
596 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
597 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
598 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
599 * | Minimum Policed Unit [m] (32-bit integer) |
600 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
601 * | Maximum Packet Size [M] (32-bit integer) |
602 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
603 */
604
605 if (parameter_length == 20) {
606 ND_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps",
607 GET_BE_F_4(tptr + 4) / 125000);
608 ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes",
609 GET_BE_F_4(tptr + 8));
610 ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps",
611 GET_BE_F_4(tptr + 12) / 125000);
612 ND_PRINT("\n\t\tMinimum Policed Unit: %u bytes",
613 GET_BE_U_4(tptr + 16));
614 ND_PRINT("\n\t\tMaximum Packet Size: %u bytes",
615 GET_BE_U_4(tptr + 20));
616 }
617 break;
618
619 case 130:
620 /*
621 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
622 * | 130 (h) | 0 (i) | 2 (j) |
623 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
624 * | Rate [R] (32-bit IEEE floating point number) |
625 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
626 * | Slack Term [S] (32-bit integer) |
627 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
628 */
629
630 if (parameter_length == 8) {
631 ND_PRINT("\n\t\tRate: %.10g Mbps", GET_BE_F_4(tptr + 4) / 125000);
632 ND_PRINT("\n\t\tSlack Term: %u", GET_BE_U_4(tptr + 8));
633 }
634 break;
635
636 case 133:
637 case 134:
638 case 135:
639 case 136:
640 if (parameter_length == 4) {
641 ND_PRINT("\n\t\tValue: %u", GET_BE_U_4(tptr + 4));
642 }
643 break;
644
645 default:
646 if (ndo->ndo_vflag <= 1)
647 print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
648 }
649 return (parameter_length+4); /* header length 4 bytes */
650
651 invalid:
652 nd_print_invalid(ndo);
653 return 0;
654 }
655
656 /*
657 * Clear checksum prior to signature verification.
658 */
659 static void
660 rsvp_clear_checksum(void *header)
661 {
662 struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
663
664 rsvp_com_header->checksum[0] = 0;
665 rsvp_com_header->checksum[1] = 0;
666 }
667
668 static int
669 rsvp_obj_print(netdissect_options *ndo,
670 const u_char *pptr, u_int plen, const u_char *tptr,
671 const char *indent, u_int tlen,
672 const struct rsvp_common_header *rsvp_com_header)
673 {
674 const struct rsvp_object_header *rsvp_obj_header;
675 const u_char *obj_tptr;
676 union {
677 const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
678 const struct rsvp_obj_frr_t *rsvp_obj_frr;
679 } obj_ptr;
680
681 u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num;
682 u_int obj_tlen,intserv_serv_tlen;
683 int hexdump;
684 u_int processed,padbytes,error_code,error_value,i,sigcheck;
685 u_int namelen;
686
687 u_int action, subchannel;
688
689 while(tlen>=sizeof(struct rsvp_object_header)) {
690 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
691 rsvp_obj_len=GET_BE_U_2(rsvp_obj_header->length);
692 rsvp_obj_ctype=GET_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 < %zu", indent, rsvp_obj_len,
700 sizeof(struct rsvp_object_header));
701 return -1;
702 }
703
704 rsvp_obj_class_num = GET_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 goto obj_tooshort;
741 ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
742 indent,
743 GET_IPADDR_STRING(obj_tptr),
744 GET_U_1(obj_tptr + sizeof(nd_ipv4)));
745 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
746 indent,
747 GET_U_1((obj_tptr + 5)),
748 GET_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 goto obj_tooshort;
755 ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
756 indent,
757 GET_IP6ADDR_STRING(obj_tptr),
758 GET_U_1(obj_tptr + sizeof(nd_ipv6)));
759 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
760 indent,
761 GET_U_1((obj_tptr + sizeof(nd_ipv6) + 1)),
762 GET_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 goto obj_tooshort;
770 ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
771 indent,
772 GET_IP6ADDR_STRING(obj_tptr),
773 GET_BE_U_2(obj_tptr + 18),
774 GET_IP6ADDR_STRING(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 goto obj_tooshort;
782 ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
783 indent,
784 GET_BE_U_4(obj_tptr),
785 GET_BE_U_2(obj_tptr + 6),
786 GET_IP6ADDR_STRING(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 goto obj_tooshort;
793 ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
794 indent,
795 GET_IPADDR_STRING(obj_tptr),
796 GET_BE_U_2(obj_tptr + 6),
797 GET_IPADDR_STRING(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 goto obj_tooshort;
805 ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
806 indent,
807 GET_IPADDR_STRING(obj_tptr),
808 GET_BE_U_2(obj_tptr + 6),
809 GET_IPADDR_STRING(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 goto obj_tooshort;
823 ND_PRINT("%s IPv4 Receiver Address: %s",
824 indent,
825 GET_IPADDR_STRING(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 goto obj_tooshort;
832 ND_PRINT("%s IPv6 Receiver Address: %s",
833 indent,
834 GET_IP6ADDR_STRING(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 goto obj_tooshort;
848 ND_PRINT("%s IPv4 Notify Node Address: %s",
849 indent,
850 GET_IPADDR_STRING(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 goto obj_tooshort;
857 ND_PRINT("%s IPv6 Notify Node Address: %s",
858 indent,
859 GET_IP6ADDR_STRING(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, GET_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 goto obj_tooshort;
883 ND_PRINT("%s Generalized Label: %u",
884 indent,
885 GET_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 goto obj_tooshort;
892 ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
893 indent,
894 GET_BE_U_4(obj_tptr),
895 indent,
896 GET_BE_U_4(obj_tptr + 4),
897 GET_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 goto obj_tooshort;
911 ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]",
912 indent,
913 tok2str(rsvp_resstyle_values,
914 "Unknown",
915 GET_BE_U_3(obj_tptr + 1)),
916 GET_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 goto obj_tooshort;
930 ND_PRINT("%s Source Address: %s, Source Port: %u",
931 indent,
932 GET_IPADDR_STRING(obj_tptr),
933 GET_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 goto obj_tooshort;
940 ND_PRINT("%s Source Address: %s, Source Port: %u",
941 indent,
942 GET_IP6ADDR_STRING(obj_tptr),
943 GET_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 goto obj_tooshort;
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 GET_IP6ADDR_STRING(obj_tptr),
954 GET_BE_U_2(obj_tptr + 18),
955 indent,
956 GET_IP6ADDR_STRING(obj_tptr+20),
957 GET_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 goto obj_tooshort;
964 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
965 indent,
966 GET_IPADDR_STRING(obj_tptr),
967 GET_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 goto obj_tooshort;
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 GET_IPADDR_STRING(obj_tptr),
978 GET_BE_U_2(obj_tptr + 6),
979 indent,
980 GET_IPADDR_STRING(obj_tptr+8),
981 GET_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 GET_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 goto obj_tooshort;
1006 ND_PRINT("%s L3 Protocol ID: %s",
1007 indent,
1008 tok2str(ethertype_values,
1009 "Unknown Protocol (0x%04x)",
1010 GET_BE_U_2(obj_tptr + 2)));
1011 ND_PRINT(",%s merge capability",
1012 ((GET_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" );
1013 ND_PRINT("%s Minimum VPI/VCI: %u/%u",
1014 indent,
1015 (GET_BE_U_2(obj_tptr + 4))&0xfff,
1016 (GET_BE_U_2(obj_tptr + 6)) & 0xfff);
1017 ND_PRINT("%s Maximum VPI/VCI: %u/%u",
1018 indent,
1019 (GET_BE_U_2(obj_tptr + 8))&0xfff,
1020 (GET_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 goto obj_tooshort;
1027 ND_PRINT("%s L3 Protocol ID: %s",
1028 indent,
1029 tok2str(ethertype_values,
1030 "Unknown Protocol (0x%04x)",
1031 GET_BE_U_2(obj_tptr + 2)));
1032 ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1033 indent,
1034 (GET_BE_U_4(obj_tptr + 4))&0x7fffff,
1035 (GET_BE_U_4(obj_tptr + 8))&0x7fffff,
1036 (((GET_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
1037 (((GET_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 goto obj_tooshort;
1044 ND_PRINT("%s LSP Encoding Type: %s (%u)",
1045 indent,
1046 tok2str(gmpls_encoding_values,
1047 "Unknown",
1048 GET_U_1(obj_tptr)),
1049 GET_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 GET_U_1((obj_tptr + 1))),
1055 GET_U_1(obj_tptr + 1),
1056 tok2str(gmpls_payload_values,
1057 "Unknown",
1058 GET_BE_U_2(obj_tptr + 2)),
1059 GET_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 = GET_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(GET_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(GET_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 = GET_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(GET_U_1(obj_tptr)) ? "Loose" : "Strict",
1110 GET_IPADDR_STRING(obj_tptr+2),
1111 GET_U_1((obj_tptr + 6)),
1112 bittok2str(rsvp_obj_rro_flag_values,
1113 "none",
1114 GET_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_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1122 bittok2str(rsvp_obj_rro_label_flag_values,
1123 "none",
1124 GET_U_1((obj_tptr + 2))),
1125 GET_U_1(obj_tptr + 2),
1126 tok2str(rsvp_ctype_values,
1127 "Unknown",
1128 GET_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
1129 GET_U_1((obj_tptr + 3)),
1130 GET_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 goto obj_tooshort;
1147 ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1148 indent,
1149 GET_BE_U_4(obj_tptr),
1150 GET_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 goto obj_tooshort;
1164 ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums",
1165 indent,
1166 GET_BE_U_4(obj_tptr),
1167 GET_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_CAPABILITY:
1177 switch(rsvp_obj_ctype) {
1178 case RSVP_CTYPE_1:
1179 if (obj_tlen < 4)
1180 goto obj_tooshort;
1181 uint32_t unused_and_flags = GET_BE_U_4(obj_tptr);
1182 if (unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK)
1183 ND_PRINT("%s [reserved=0x%08x must be zero]", indent,
1184 unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK);
1185 ND_PRINT("%s Flags: [%s]",
1186 indent,
1187 bittok2str(rsvp_obj_capability_flag_values,
1188 "none",
1189 (unused_and_flags & RSVP_OBJ_CAPABILITY_FLAGS_MASK)));
1190 obj_tlen-=4;
1191 obj_tptr+=4;
1192 break;
1193 default:
1194 hexdump=TRUE;
1195 }
1196 break;
1197
1198 case RSVP_OBJ_SESSION_ATTRIBUTE:
1199 switch(rsvp_obj_ctype) {
1200 case RSVP_CTYPE_TUNNEL_IPV4:
1201 if (obj_tlen < 4)
1202 goto obj_tooshort;
1203 namelen = GET_U_1(obj_tptr + 3);
1204 if (obj_tlen < 4+namelen)
1205 goto obj_tooshort;
1206 ND_PRINT("%s Session Name: ", indent);
1207 for (i = 0; i < namelen; i++)
1208 fn_print_char(ndo, GET_U_1(obj_tptr + 4 + i));
1209 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1210 indent,
1211 GET_U_1(obj_tptr),
1212 GET_U_1(obj_tptr + 1),
1213 bittok2str(rsvp_session_attribute_flag_values,
1214 "none",
1215 GET_U_1((obj_tptr + 2))),
1216 GET_U_1(obj_tptr + 2));
1217 obj_tlen-=4+namelen;
1218 obj_tptr+=4+namelen;
1219 break;
1220 default:
1221 hexdump=TRUE;
1222 }
1223 break;
1224
1225 case RSVP_OBJ_GENERALIZED_UNI:
1226 switch(rsvp_obj_ctype) {
1227 u_int subobj_type,af,subobj_len,total_subobj_len;
1228
1229 case RSVP_CTYPE_1:
1230
1231 if (obj_tlen < 4)
1232 goto obj_tooshort;
1233
1234 /* read variable length subobjects */
1235 total_subobj_len = obj_tlen;
1236 while(total_subobj_len != 0) {
1237 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1238 * GENERALIZED_UNI RSVP object must have the Length field as
1239 * a multiple of 4, instead of the check below it would be
1240 * better to test total_subobj_len only once before the loop.
1241 * So long as it does not define it and this while loop does
1242 * not implement such a requirement, let's accept that within
1243 * each iteration subobj_len may happen to be a multiple of 1
1244 * and test it and total_subobj_len respectively.
1245 */
1246 ND_ICHECK_U(total_subobj_len, <, 4);
1247 subobj_len = GET_BE_U_2(obj_tptr);
1248 subobj_type = (GET_BE_U_2(obj_tptr + 2))>>8;
1249 af = (GET_BE_U_2(obj_tptr + 2))&0x00FF;
1250
1251 ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1252 indent,
1253 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1254 subobj_type,
1255 tok2str(af_values, "Unknown", af), af,
1256 subobj_len);
1257
1258 /* In addition to what is explained above, the same spec does not
1259 * explicitly say that the same Length field includes the 4-octet
1260 * sub-object header, but as long as this while loop implements it
1261 * as it does include, let's keep the check below consistent with
1262 * the rest of the code.
1263 *
1264 * XXX - RFC 3476 Section 3.1 says "The contents of these
1265 * sub-objects are described in [8]", where [8] is
1266 * UNI 1.0 Signaling Specification, The Optical
1267 * Internetworking Forum. The URL they give for that
1268 * document is
1269 *
1270 * http://www.oiforum.com/public/UNI_1.0_ia.html
1271 *
1272 * but that doesn't work; the new URL appears to be
1273 *
1274 * https://web.archive.org/web/20160401194747/http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf
1275 *
1276 * and *that* document, in section 12.5.2.3
1277 * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))",
1278 * says nothing about the length field in general, but
1279 * some of the examples it gives in subsections have
1280 * length field values that clearly includes the length
1281 * of the sub-object header as well as the length of the
1282 * value.
1283 */
1284 if(subobj_len < 4 || subobj_len > total_subobj_len ||
1285 obj_tlen < subobj_len)
1286 goto invalid;
1287
1288 switch(subobj_type) {
1289 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1290 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1291
1292 switch(af) {
1293 case AFNUM_IP:
1294 if (subobj_len < 8)
1295 goto subobj_tooshort;
1296 ND_PRINT("%s UNI IPv4 TNA address: %s",
1297 indent, GET_IPADDR_STRING(obj_tptr + 4));
1298 break;
1299 case AFNUM_IP6:
1300 if (subobj_len < 20)
1301 goto subobj_tooshort;
1302 ND_PRINT("%s UNI IPv6 TNA address: %s",
1303 indent, GET_IP6ADDR_STRING(obj_tptr + 4));
1304 break;
1305 case AFNUM_NSAP:
1306 if (subobj_len) {
1307 /* unless we have a TLV parser lets just hexdump */
1308 hexdump=TRUE;
1309 }
1310 break;
1311 }
1312 break;
1313
1314 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1315 if (subobj_len > 4) {
1316 /* unless we have a TLV parser lets just hexdump */
1317 hexdump=TRUE;
1318 }
1319 break;
1320
1321 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1322 if (subobj_len < 16) {
1323 goto subobj_tooshort;
1324 }
1325
1326 ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1327 indent,
1328 ((GET_BE_U_4(obj_tptr + 4))>>31),
1329 ((GET_BE_U_4(obj_tptr + 4))&0xFF),
1330 GET_BE_U_4(obj_tptr + 8),
1331 GET_BE_U_4(obj_tptr + 12));
1332 break;
1333
1334 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1335 if (subobj_len < 8) {
1336 goto subobj_tooshort;
1337 }
1338
1339 ND_PRINT("%s Service level: %u",
1340 indent, (GET_BE_U_4(obj_tptr + 4)) >> 24);
1341 break;
1342
1343 default:
1344 hexdump=TRUE;
1345 break;
1346 }
1347 total_subobj_len-=subobj_len;
1348 obj_tptr+=subobj_len;
1349 obj_tlen+=subobj_len;
1350 }
1351 break;
1352
1353 default:
1354 hexdump=TRUE;
1355 }
1356 break;
1357
1358 case RSVP_OBJ_RSVP_HOP:
1359 switch(rsvp_obj_ctype) {
1360 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1361 case RSVP_CTYPE_IPV4:
1362 if (obj_tlen < 8)
1363 goto obj_tooshort;
1364 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1365 indent,
1366 GET_IPADDR_STRING(obj_tptr),
1367 GET_BE_U_4(obj_tptr + 4));
1368 obj_tlen-=8;
1369 obj_tptr+=8;
1370 if (obj_tlen)
1371 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1372 break;
1373 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1374 case RSVP_CTYPE_IPV6:
1375 if (obj_tlen < 20)
1376 goto obj_tooshort;
1377 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1378 indent,
1379 GET_IP6ADDR_STRING(obj_tptr),
1380 GET_BE_U_4(obj_tptr + 16));
1381 obj_tlen-=20;
1382 obj_tptr+=20;
1383 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1384 break;
1385 default:
1386 hexdump=TRUE;
1387 }
1388 break;
1389
1390 case RSVP_OBJ_TIME_VALUES:
1391 switch(rsvp_obj_ctype) {
1392 case RSVP_CTYPE_1:
1393 if (obj_tlen < 4)
1394 goto obj_tooshort;
1395 ND_PRINT("%s Refresh Period: %ums",
1396 indent,
1397 GET_BE_U_4(obj_tptr));
1398 obj_tlen-=4;
1399 obj_tptr+=4;
1400 break;
1401 default:
1402 hexdump=TRUE;
1403 }
1404 break;
1405
1406 /* those three objects do share the same semantics */
1407 case RSVP_OBJ_SENDER_TSPEC:
1408 case RSVP_OBJ_ADSPEC:
1409 case RSVP_OBJ_FLOWSPEC:
1410 switch(rsvp_obj_ctype) {
1411 case RSVP_CTYPE_2:
1412 if (obj_tlen < 4)
1413 goto obj_tooshort;
1414 ND_PRINT("%s Msg-Version: %u, length: %u",
1415 indent,
1416 (GET_U_1(obj_tptr) & 0xf0) >> 4,
1417 GET_BE_U_2(obj_tptr + 2) << 2);
1418 obj_tptr+=4; /* get to the start of the service header */
1419 obj_tlen-=4;
1420
1421 while (obj_tlen >= 4) {
1422 intserv_serv_tlen=GET_BE_U_2(obj_tptr + 2)<<2;
1423 ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u",
1424 indent,
1425 tok2str(rsvp_intserv_service_type_values,"unknown",GET_U_1((obj_tptr))),
1426 GET_U_1(obj_tptr),
1427 (GET_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
1428 intserv_serv_tlen);
1429
1430 obj_tptr+=4; /* get to the start of the parameter list */
1431 obj_tlen-=4;
1432
1433 while (intserv_serv_tlen>=4) {
1434 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1435 if (processed == 0)
1436 break;
1437 obj_tlen-=processed;
1438 intserv_serv_tlen-=processed;
1439 obj_tptr+=processed;
1440 }
1441 }
1442 break;
1443 default:
1444 hexdump=TRUE;
1445 }
1446 break;
1447
1448 case RSVP_OBJ_FILTERSPEC:
1449 switch(rsvp_obj_ctype) {
1450 case RSVP_CTYPE_IPV4:
1451 if (obj_tlen < 8)
1452 goto obj_tooshort;
1453 ND_PRINT("%s Source Address: %s, Source Port: %u",
1454 indent,
1455 GET_IPADDR_STRING(obj_tptr),
1456 GET_BE_U_2(obj_tptr + 6));
1457 obj_tlen-=8;
1458 obj_tptr+=8;
1459 break;
1460 case RSVP_CTYPE_IPV6:
1461 if (obj_tlen < 20)
1462 goto obj_tooshort;
1463 ND_PRINT("%s Source Address: %s, Source Port: %u",
1464 indent,
1465 GET_IP6ADDR_STRING(obj_tptr),
1466 GET_BE_U_2(obj_tptr + 18));
1467 obj_tlen-=20;
1468 obj_tptr+=20;
1469 break;
1470 case RSVP_CTYPE_3:
1471 if (obj_tlen < 20)
1472 goto obj_tooshort;
1473 ND_PRINT("%s Source Address: %s, Flow Label: %u",
1474 indent,
1475 GET_IP6ADDR_STRING(obj_tptr),
1476 GET_BE_U_3(obj_tptr + 17));
1477 obj_tlen-=20;
1478 obj_tptr+=20;
1479 break;
1480 case RSVP_CTYPE_TUNNEL_IPV6:
1481 if (obj_tlen < 20)
1482 goto obj_tooshort;
1483 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1484 indent,
1485 GET_IPADDR_STRING(obj_tptr),
1486 GET_BE_U_2(obj_tptr + 18));
1487 obj_tlen-=20;
1488 obj_tptr+=20;
1489 break;
1490 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1491 if (obj_tlen < 40)
1492 goto obj_tooshort;
1493 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1494 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1495 indent,
1496 GET_IP6ADDR_STRING(obj_tptr),
1497 GET_BE_U_2(obj_tptr + 18),
1498 indent,
1499 GET_IP6ADDR_STRING(obj_tptr+20),
1500 GET_BE_U_2(obj_tptr + 38));
1501 obj_tlen-=40;
1502 obj_tptr+=40;
1503 break;
1504 case RSVP_CTYPE_TUNNEL_IPV4:
1505 if (obj_tlen < 8)
1506 goto obj_tooshort;
1507 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1508 indent,
1509 GET_IPADDR_STRING(obj_tptr),
1510 GET_BE_U_2(obj_tptr + 6));
1511 obj_tlen-=8;
1512 obj_tptr+=8;
1513 break;
1514 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1515 if (obj_tlen < 16)
1516 goto obj_tooshort;
1517 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1518 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1519 indent,
1520 GET_IPADDR_STRING(obj_tptr),
1521 GET_BE_U_2(obj_tptr + 6),
1522 indent,
1523 GET_IPADDR_STRING(obj_tptr+8),
1524 GET_BE_U_2(obj_tptr + 12));
1525 obj_tlen-=16;
1526 obj_tptr+=16;
1527 break;
1528 default:
1529 hexdump=TRUE;
1530 }
1531 break;
1532
1533 case RSVP_OBJ_FASTREROUTE:
1534 /* the differences between c-type 1 and 7 are minor */
1535 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1536
1537 switch(rsvp_obj_ctype) {
1538 case RSVP_CTYPE_1: /* new style */
1539 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1540 goto obj_tooshort;
1541 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1542 indent,
1543 GET_U_1(obj_ptr.rsvp_obj_frr->setup_prio),
1544 GET_U_1(obj_ptr.rsvp_obj_frr->hold_prio),
1545 GET_U_1(obj_ptr.rsvp_obj_frr->hop_limit),
1546 GET_BE_F_4(obj_ptr.rsvp_obj_frr->bandwidth) * 8 / 1000000);
1547 ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1548 indent,
1549 GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1550 GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
1551 GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_all));
1552 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1553 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1554 break;
1555
1556 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1557 if (obj_tlen < 16)
1558 goto obj_tooshort;
1559 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1560 indent,
1561 GET_U_1(obj_ptr.rsvp_obj_frr->setup_prio),
1562 GET_U_1(obj_ptr.rsvp_obj_frr->hold_prio),
1563 GET_U_1(obj_ptr.rsvp_obj_frr->hop_limit),
1564 GET_BE_F_4(obj_ptr.rsvp_obj_frr->bandwidth) * 8 / 1000000);
1565 ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1566 indent,
1567 GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1568 GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any));
1569 obj_tlen-=16;
1570 obj_tptr+=16;
1571 break;
1572
1573 default:
1574 hexdump=TRUE;
1575 }
1576 break;
1577
1578 case RSVP_OBJ_DETOUR:
1579 switch(rsvp_obj_ctype) {
1580 case RSVP_CTYPE_TUNNEL_IPV4:
1581 while(obj_tlen >= 8) {
1582 ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s",
1583 indent,
1584 GET_IPADDR_STRING(obj_tptr),
1585 GET_IPADDR_STRING(obj_tptr + 4));
1586 obj_tlen-=8;
1587 obj_tptr+=8;
1588 }
1589 break;
1590 default:
1591 hexdump=TRUE;
1592 }
1593 break;
1594
1595 case RSVP_OBJ_CLASSTYPE:
1596 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1597 switch(rsvp_obj_ctype) {
1598 case RSVP_CTYPE_1:
1599 if (obj_tlen < 4)
1600 goto obj_tooshort;
1601 ND_PRINT("%s CT: %u",
1602 indent,
1603 GET_BE_U_4(obj_tptr) & 0x7);
1604 obj_tlen-=4;
1605 obj_tptr+=4;
1606 break;
1607 default:
1608 hexdump=TRUE;
1609 }
1610 break;
1611
1612 case RSVP_OBJ_ERROR_SPEC:
1613 switch(rsvp_obj_ctype) {
1614 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1615 case RSVP_CTYPE_IPV4:
1616 if (obj_tlen < 8)
1617 goto obj_tooshort;
1618 error_code=GET_U_1(obj_tptr + 5);
1619 error_value=GET_BE_U_2(obj_tptr + 6);
1620 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1621 indent,
1622 GET_IPADDR_STRING(obj_tptr),
1623 GET_U_1(obj_tptr + 4),
1624 indent,
1625 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1626 error_code);
1627 switch (error_code) {
1628 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1629 ND_PRINT(", Error Value: %s (%u)",
1630 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1631 error_value);
1632 break;
1633 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1634 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1635 ND_PRINT(", Error Value: %s (%u)",
1636 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1637 error_value);
1638 break;
1639 default:
1640 ND_PRINT(", Unknown Error Value (%u)", error_value);
1641 break;
1642 }
1643 obj_tlen-=8;
1644 obj_tptr+=8;
1645 break;
1646 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1647 case RSVP_CTYPE_IPV6:
1648 if (obj_tlen < 20)
1649 goto obj_tooshort;
1650 error_code=GET_U_1(obj_tptr + 17);
1651 error_value=GET_BE_U_2(obj_tptr + 18);
1652 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1653 indent,
1654 GET_IP6ADDR_STRING(obj_tptr),
1655 GET_U_1(obj_tptr + 16),
1656 indent,
1657 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1658 error_code);
1659
1660 switch (error_code) {
1661 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1662 ND_PRINT(", Error Value: %s (%u)",
1663 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1664 error_value);
1665 break;
1666 default:
1667 break;
1668 }
1669 obj_tlen-=20;
1670 obj_tptr+=20;
1671 break;
1672 default:
1673 hexdump=TRUE;
1674 }
1675 break;
1676
1677 case RSVP_OBJ_PROPERTIES:
1678 switch(rsvp_obj_ctype) {
1679 case RSVP_CTYPE_1:
1680 if (obj_tlen < 4)
1681 goto obj_tooshort;
1682 padbytes = GET_BE_U_2(obj_tptr + 2);
1683 ND_PRINT("%s TLV count: %u, padding bytes: %u",
1684 indent,
1685 GET_BE_U_2(obj_tptr),
1686 padbytes);
1687 obj_tlen-=4;
1688 obj_tptr+=4;
1689 /* loop through as long there is anything longer than the TLV header (2) */
1690 while(obj_tlen >= 2 + padbytes) {
1691 ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */
1692 indent,
1693 tok2str(rsvp_obj_prop_tlv_values,"unknown",GET_U_1(obj_tptr)),
1694 GET_U_1(obj_tptr),
1695 GET_U_1(obj_tptr + 1));
1696 if (obj_tlen < GET_U_1(obj_tptr + 1))
1697 goto obj_tooshort;
1698 if (GET_U_1(obj_tptr + 1) < 2) {
1699 ND_PRINT("%sERROR: property TLV is too short", indent);
1700 return -1;
1701 }
1702 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
1703 GET_U_1(obj_tptr + 1) - 2);
1704 obj_tlen-=GET_U_1(obj_tptr + 1);
1705 obj_tptr+=GET_U_1(obj_tptr + 1);
1706 }
1707 break;
1708 default:
1709 hexdump=TRUE;
1710 }
1711 break;
1712
1713 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1714 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1715 case RSVP_OBJ_MESSAGE_ID_LIST:
1716 switch(rsvp_obj_ctype) {
1717 case RSVP_CTYPE_1:
1718 case RSVP_CTYPE_2:
1719 if (obj_tlen < 4)
1720 goto obj_tooshort;
1721 ND_PRINT("%s Flags [0x%02x], epoch: %u",
1722 indent,
1723 GET_U_1(obj_tptr),
1724 GET_BE_U_3(obj_tptr + 1));
1725 obj_tlen-=4;
1726 obj_tptr+=4;
1727 /* loop through as long there are no messages left */
1728 while(obj_tlen >= 4) {
1729 ND_PRINT("%s Message-ID 0x%08x (%u)",
1730 indent,
1731 GET_BE_U_4(obj_tptr),
1732 GET_BE_U_4(obj_tptr));
1733 obj_tlen-=4;
1734 obj_tptr+=4;
1735 }
1736 break;
1737 default:
1738 hexdump=TRUE;
1739 }
1740 break;
1741
1742 case RSVP_OBJ_INTEGRITY:
1743 switch(rsvp_obj_ctype) {
1744 case RSVP_CTYPE_1:
1745 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1746 goto obj_tooshort;
1747 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1748 ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1749 indent,
1750 GET_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
1751 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
1752 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
1753 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
1754 bittok2str(rsvp_obj_integrity_flag_values,
1755 "none",
1756 GET_U_1(obj_ptr.rsvp_obj_integrity->flags)));
1757 ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ",
1758 indent,
1759 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
1760 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
1761 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
1762 GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12));
1763
1764 sigcheck = signature_verify(ndo, pptr, plen,
1765 obj_ptr.rsvp_obj_integrity->digest,
1766 rsvp_clear_checksum,
1767 rsvp_com_header);
1768 ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
1769
1770 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1771 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1772 break;
1773 default:
1774 hexdump=TRUE;
1775 }
1776 break;
1777
1778 case RSVP_OBJ_ADMIN_STATUS:
1779 switch(rsvp_obj_ctype) {
1780 case RSVP_CTYPE_1:
1781 if (obj_tlen < 4)
1782 goto obj_tooshort;
1783 ND_PRINT("%s Flags [%s]", indent,
1784 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1785 GET_BE_U_4(obj_tptr)));
1786 obj_tlen-=4;
1787 obj_tptr+=4;
1788 break;
1789 default:
1790 hexdump=TRUE;
1791 }
1792 break;
1793
1794 case RSVP_OBJ_LABEL_SET:
1795 switch(rsvp_obj_ctype) {
1796 case RSVP_CTYPE_1:
1797 if (obj_tlen < 4)
1798 goto obj_tooshort;
1799 action = (GET_BE_U_2(obj_tptr)>>8);
1800
1801 ND_PRINT("%s Action: %s (%u), Label type: %u", indent,
1802 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1803 action, (GET_BE_U_4(obj_tptr) & 0x7F));
1804
1805 switch (action) {
1806 case LABEL_SET_INCLUSIVE_RANGE:
1807 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1808
1809 /* only a couple of subchannels are expected */
1810 if (obj_tlen < 12)
1811 goto obj_tooshort;
1812 ND_PRINT("%s Start range: %u, End range: %u", indent,
1813 GET_BE_U_4(obj_tptr + 4),
1814 GET_BE_U_4(obj_tptr + 8));
1815 obj_tlen-=12;
1816 obj_tptr+=12;
1817 break;
1818
1819 default:
1820 obj_tlen-=4;
1821 obj_tptr+=4;
1822 subchannel = 1;
1823 while(obj_tlen >= 4 ) {
1824 ND_PRINT("%s Subchannel #%u: %u", indent, subchannel,
1825 GET_BE_U_4(obj_tptr));
1826 obj_tptr+=4;
1827 obj_tlen-=4;
1828 subchannel++;
1829 }
1830 break;
1831 }
1832 break;
1833 default:
1834 hexdump=TRUE;
1835 }
1836 break;
1837
1838 case RSVP_OBJ_S2L:
1839 switch (rsvp_obj_ctype) {
1840 case RSVP_CTYPE_IPV4:
1841 if (obj_tlen < 4)
1842 goto obj_tooshort;
1843 ND_PRINT("%s Sub-LSP destination address: %s",
1844 indent, GET_IPADDR_STRING(obj_tptr));
1845
1846 obj_tlen-=4;
1847 obj_tptr+=4;
1848 break;
1849 case RSVP_CTYPE_IPV6:
1850 if (obj_tlen < 16)
1851 goto obj_tooshort;
1852 ND_PRINT("%s Sub-LSP destination address: %s",
1853 indent, GET_IP6ADDR_STRING(obj_tptr));
1854
1855 obj_tlen-=16;
1856 obj_tptr+=16;
1857 break;
1858 default:
1859 hexdump=TRUE;
1860 }
1861 break;
1862
1863 /*
1864 * FIXME those are the defined objects that lack a decoder
1865 * you are welcome to contribute code ;-)
1866 */
1867
1868 case RSVP_OBJ_SCOPE:
1869 case RSVP_OBJ_POLICY_DATA:
1870 case RSVP_OBJ_ACCEPT_LABEL_SET:
1871 case RSVP_OBJ_PROTECTION:
1872 default:
1873 if (ndo->ndo_vflag <= 1)
1874 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1875 break;
1876 }
1877 /* do we also want to see a hex dump ? */
1878 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1879 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1880 rsvp_obj_len - sizeof(struct rsvp_object_header));
1881
1882 tptr+=rsvp_obj_len;
1883 tlen-=rsvp_obj_len;
1884 }
1885 return 0;
1886 subobj_tooshort:
1887 ND_PRINT("%sERROR: sub-object is too short", indent);
1888 return -1;
1889 obj_tooshort:
1890 ND_PRINT("%sERROR: object is too short", indent);
1891 return -1;
1892 invalid:
1893 nd_print_invalid(ndo);
1894 return -1;
1895 }
1896
1897 void
1898 rsvp_print(netdissect_options *ndo,
1899 const u_char *pptr, u_int len)
1900 {
1901 const struct rsvp_common_header *rsvp_com_header;
1902 uint8_t version_flags, msg_type;
1903 const u_char *tptr;
1904 u_short plen, tlen;
1905
1906 ndo->ndo_protocol = "rsvp";
1907 tptr=pptr;
1908
1909 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1910 ND_TCHECK_SIZE(rsvp_com_header);
1911 version_flags = GET_U_1(rsvp_com_header->version_flags);
1912
1913 /*
1914 * Sanity checking of the header.
1915 */
1916 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1917 ND_PRINT("ERROR: RSVP version %u packet not supported",
1918 RSVP_EXTRACT_VERSION(version_flags));
1919 return;
1920 }
1921
1922 msg_type = GET_U_1(rsvp_com_header->msg_type);
1923
1924 /* in non-verbose mode just lets print the basic Message Type*/
1925 if (ndo->ndo_vflag < 1) {
1926 ND_PRINT("RSVPv%u %s Message, length: %u",
1927 RSVP_EXTRACT_VERSION(version_flags),
1928 tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type),
1929 len);
1930 return;
1931 }
1932
1933 /* ok they seem to want to know everything - lets fully decode it */
1934
1935 plen = tlen = GET_BE_U_2(rsvp_com_header->length);
1936
1937 ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1938 RSVP_EXTRACT_VERSION(version_flags),
1939 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1940 msg_type,
1941 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1942 tlen,
1943 GET_U_1(rsvp_com_header->ttl),
1944 GET_BE_U_2(rsvp_com_header->checksum));
1945
1946 if (tlen < sizeof(struct rsvp_common_header)) {
1947 ND_PRINT("ERROR: common header too short %u < %zu", tlen,
1948 sizeof(struct rsvp_common_header));
1949 return;
1950 }
1951
1952 tptr+=sizeof(struct rsvp_common_header);
1953 tlen-=sizeof(struct rsvp_common_header);
1954
1955 switch(msg_type) {
1956
1957 case RSVP_MSGTYPE_BUNDLE:
1958 /*
1959 * Process each submessage in the bundle message.
1960 * Bundle messages may not contain bundle submessages, so we don't
1961 * need to handle bundle submessages specially.
1962 */
1963 while(tlen != 0) {
1964 const u_char *subpptr=tptr, *subtptr;
1965 u_short subplen, subtlen;
1966
1967 subtptr=subpptr;
1968
1969 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1970 ND_TCHECK_SIZE(rsvp_com_header);
1971 version_flags = GET_U_1(rsvp_com_header->version_flags);
1972
1973 /*
1974 * Sanity checking of the header.
1975 */
1976 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1977 ND_PRINT("ERROR: RSVP version %u packet not supported",
1978 RSVP_EXTRACT_VERSION(version_flags));
1979 return;
1980 }
1981
1982 subplen = subtlen = GET_BE_U_2(rsvp_com_header->length);
1983
1984 msg_type = GET_U_1(rsvp_com_header->msg_type);
1985 ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1986 RSVP_EXTRACT_VERSION(version_flags),
1987 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1988 msg_type,
1989 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1990 subtlen,
1991 GET_U_1(rsvp_com_header->ttl),
1992 GET_BE_U_2(rsvp_com_header->checksum));
1993
1994 if (subtlen < sizeof(struct rsvp_common_header)) {
1995 ND_PRINT("ERROR: common header too short %u < %zu", subtlen,
1996 sizeof(struct rsvp_common_header));
1997 return;
1998 }
1999
2000 if (tlen < subtlen) {
2001 ND_PRINT("ERROR: common header too large %u > %u", subtlen,
2002 tlen);
2003 return;
2004 }
2005
2006 subtptr+=sizeof(struct rsvp_common_header);
2007 subtlen-=sizeof(struct rsvp_common_header);
2008
2009 /*
2010 * Print all objects in the submessage.
2011 */
2012 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
2013 return;
2014
2015 tptr+=subtlen+sizeof(struct rsvp_common_header);
2016 tlen-=subtlen+sizeof(struct rsvp_common_header);
2017 }
2018
2019 break;
2020
2021 case RSVP_MSGTYPE_PATH:
2022 case RSVP_MSGTYPE_RESV:
2023 case RSVP_MSGTYPE_PATHERR:
2024 case RSVP_MSGTYPE_RESVERR:
2025 case RSVP_MSGTYPE_PATHTEAR:
2026 case RSVP_MSGTYPE_RESVTEAR:
2027 case RSVP_MSGTYPE_RESVCONF:
2028 case RSVP_MSGTYPE_HELLO_OLD:
2029 case RSVP_MSGTYPE_HELLO:
2030 case RSVP_MSGTYPE_ACK:
2031 case RSVP_MSGTYPE_SREFRESH:
2032 /*
2033 * Print all objects in the message.
2034 */
2035 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
2036 return;
2037 break;
2038
2039 default:
2040 print_unknown_data(ndo, tptr, "\n\t ", tlen);
2041 break;
2042 }
2043 }
[mirror] the TCPdump network dissector