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Handle very large -f files by rejecting them.
[tcpdump] / print-rsvp.c
1 /*
2 * Copyright (c) 1998-2007 The TCPDUMP project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that: (1) source code
6 * distributions retain the above copyright notice and this paragraph
7 * in its entirety, and (2) distributions including binary code include
8 * the above copyright notice and this paragraph in its entirety in
9 * the documentation or other materials provided with the distribution.
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
13 * FOR A PARTICULAR PURPOSE.
14 *
15 * Original code by Hannes Gredler (hannes@gredler.at)
16 */
17
18 /* \summary: Resource ReSerVation Protocol (RSVP) printer */
19
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include <netdissect-stdinc.h>
25
26 #include "netdissect.h"
27 #include "extract.h"
28 #include "addrtoname.h"
29 #include "ethertype.h"
30 #include "gmpls.h"
31 #include "af.h"
32 #include "signature.h"
33
34 static const char tstr[] = " [|rsvp]";
35
36 /*
37 * RFC 2205 common header
38 *
39 * 0 1 2 3
40 * +-------------+-------------+-------------+-------------+
41 * | Vers | Flags| Msg Type | RSVP Checksum |
42 * +-------------+-------------+-------------+-------------+
43 * | Send_TTL | (Reserved) | RSVP Length |
44 * +-------------+-------------+-------------+-------------+
45 *
46 */
47
48 struct rsvp_common_header {
49 uint8_t version_flags;
50 uint8_t msg_type;
51 uint8_t checksum[2];
52 uint8_t ttl;
53 uint8_t reserved;
54 uint8_t length[2];
55 };
56
57 /*
58 * RFC2205 object header
59 *
60 *
61 * 0 1 2 3
62 * +-------------+-------------+-------------+-------------+
63 * | Length (bytes) | Class-Num | C-Type |
64 * +-------------+-------------+-------------+-------------+
65 * | |
66 * // (Object contents) //
67 * | |
68 * +-------------+-------------+-------------+-------------+
69 */
70
71 struct rsvp_object_header {
72 uint8_t length[2];
73 uint8_t class_num;
74 uint8_t ctype;
75 };
76
77 #define RSVP_VERSION 1
78 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
79 #define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f)
80
81 #define RSVP_MSGTYPE_PATH 1
82 #define RSVP_MSGTYPE_RESV 2
83 #define RSVP_MSGTYPE_PATHERR 3
84 #define RSVP_MSGTYPE_RESVERR 4
85 #define RSVP_MSGTYPE_PATHTEAR 5
86 #define RSVP_MSGTYPE_RESVTEAR 6
87 #define RSVP_MSGTYPE_RESVCONF 7
88 #define RSVP_MSGTYPE_BUNDLE 12
89 #define RSVP_MSGTYPE_ACK 13
90 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
91 #define RSVP_MSGTYPE_SREFRESH 15
92 #define RSVP_MSGTYPE_HELLO 20
93
94 static const struct tok rsvp_msg_type_values[] = {
95 { RSVP_MSGTYPE_PATH, "Path" },
96 { RSVP_MSGTYPE_RESV, "Resv" },
97 { RSVP_MSGTYPE_PATHERR, "PathErr" },
98 { RSVP_MSGTYPE_RESVERR, "ResvErr" },
99 { RSVP_MSGTYPE_PATHTEAR, "PathTear" },
100 { RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
101 { RSVP_MSGTYPE_RESVCONF, "ResvConf" },
102 { RSVP_MSGTYPE_BUNDLE, "Bundle" },
103 { RSVP_MSGTYPE_ACK, "Acknowledgement" },
104 { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
105 { RSVP_MSGTYPE_SREFRESH, "Refresh" },
106 { RSVP_MSGTYPE_HELLO, "Hello" },
107 { 0, NULL}
108 };
109
110 static const struct tok rsvp_header_flag_values[] = {
111 { 0x01, "Refresh reduction capable" }, /* rfc2961 */
112 { 0, NULL}
113 };
114
115 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
116 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
117 #define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
118 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
119 #define RSVP_OBJ_ERROR_SPEC 6
120 #define RSVP_OBJ_SCOPE 7
121 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
122 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
123 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
124 #define RSVP_OBJ_SENDER_TEMPLATE 11
125 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
126 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
127 #define RSVP_OBJ_POLICY_DATA 14
128 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
129 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
130 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
131 #define RSVP_OBJ_ERO 20 /* rfc3209 */
132 #define RSVP_OBJ_RRO 21 /* rfc3209 */
133 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
134 #define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */
135 #define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */
136 #define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */
137 #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
138 #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
139 #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
140 #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
141 #define RSVP_OBJ_S2L 50 /* rfc4875 */
142 #define RSVP_OBJ_DETOUR 63 /* draft-ietf-mpls-rsvp-lsp-fastreroute-07 */
143 #define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
144 #define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
145 #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
146 #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
147 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
148 #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
149 #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
150 #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
151 #define RSVP_OBJ_FASTREROUTE 205 /* draft-ietf-mpls-rsvp-lsp-fastreroute-07 */
152 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
153 #define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
154 #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
155 #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
156
157 static const struct tok rsvp_obj_values[] = {
158 { RSVP_OBJ_SESSION, "Session" },
159 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
160 { RSVP_OBJ_INTEGRITY, "Integrity" },
161 { RSVP_OBJ_TIME_VALUES, "Time Values" },
162 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
163 { RSVP_OBJ_SCOPE, "Scope" },
164 { RSVP_OBJ_STYLE, "Style" },
165 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
166 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
167 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
168 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
169 { RSVP_OBJ_ADSPEC, "Adspec" },
170 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
171 { RSVP_OBJ_CONFIRM, "Confirm" },
172 { RSVP_OBJ_LABEL, "Label" },
173 { RSVP_OBJ_LABEL_REQ, "Label Request" },
174 { RSVP_OBJ_ERO, "ERO" },
175 { RSVP_OBJ_RRO, "RRO" },
176 { RSVP_OBJ_HELLO, "Hello" },
177 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
178 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
179 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
180 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
181 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
182 { RSVP_OBJ_LABEL_SET, "Label Set" },
183 { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
184 { RSVP_OBJ_DETOUR, "Detour" },
185 { RSVP_OBJ_CLASSTYPE, "Class Type" },
186 { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" },
187 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
188 { RSVP_OBJ_PROPERTIES, "Properties" },
189 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
190 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
191 { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" },
192 { RSVP_OBJ_CALL_ID, "Call-ID" },
193 { RSVP_OBJ_CALL_OPS, "Call Capability" },
194 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
195 { RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
196 { RSVP_OBJ_PROTECTION, "Protection" },
197 { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
198 { RSVP_OBJ_S2L, "Sub-LSP to LSP" },
199 { 0, NULL}
200 };
201
202 #define RSVP_CTYPE_IPV4 1
203 #define RSVP_CTYPE_IPV6 2
204 #define RSVP_CTYPE_TUNNEL_IPV4 7
205 #define RSVP_CTYPE_TUNNEL_IPV6 8
206 #define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */
207 #define RSVP_CTYPE_1 1
208 #define RSVP_CTYPE_2 2
209 #define RSVP_CTYPE_3 3
210 #define RSVP_CTYPE_4 4
211 #define RSVP_CTYPE_12 12
212 #define RSVP_CTYPE_13 13
213 #define RSVP_CTYPE_14 14
214
215 /*
216 * the ctypes are not globally unique so for
217 * translating it to strings we build a table based
218 * on objects offsetted by the ctype
219 */
220
221 static const struct tok rsvp_ctype_values[] = {
222 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
223 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
224 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
225 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
226 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
227 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
228 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
229 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
230 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
231 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
232 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
233 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
234 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
235 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
236 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
237 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
238 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
239 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
240 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
241 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
242 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
243 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
244 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" },
245 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" },
246 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" },
247 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
248 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
249 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
250 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
251 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
252 { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
253 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" },
254 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" },
255 { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
256 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
257 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
258 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
259 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
260 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
261 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
262 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
263 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
264 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
265 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
266 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
267 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
268 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
269 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
270 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
271 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
272 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
273 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
274 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
275 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
276 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
277 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
278 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
279 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
280 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
281 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
282 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
283 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
284 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
285 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
286 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
287 { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" },
288 { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
289 { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" },
290 { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" },
291 { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" },
292 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" },
293 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" },
294 { 0, NULL}
295 };
296
297 struct rsvp_obj_integrity_t {
298 uint8_t flags;
299 uint8_t res;
300 uint8_t key_id[6];
301 uint8_t sequence[8];
302 uint8_t digest[16];
303 };
304
305 static const struct tok rsvp_obj_integrity_flag_values[] = {
306 { 0x80, "Handshake" },
307 { 0, NULL}
308 };
309
310 struct rsvp_obj_frr_t {
311 uint8_t setup_prio;
312 uint8_t hold_prio;
313 uint8_t hop_limit;
314 uint8_t flags;
315 uint8_t bandwidth[4];
316 uint8_t include_any[4];
317 uint8_t exclude_any[4];
318 uint8_t include_all[4];
319 };
320
321
322 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
323 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
324
325 #define RSVP_OBJ_XRO_RES 0
326 #define RSVP_OBJ_XRO_IPV4 1
327 #define RSVP_OBJ_XRO_IPV6 2
328 #define RSVP_OBJ_XRO_LABEL 3
329 #define RSVP_OBJ_XRO_ASN 32
330 #define RSVP_OBJ_XRO_MPLS 64
331
332 static const struct tok rsvp_obj_xro_values[] = {
333 { RSVP_OBJ_XRO_RES, "Reserved" },
334 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
335 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
336 { RSVP_OBJ_XRO_LABEL, "Label" },
337 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
338 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
339 { 0, NULL}
340 };
341
342 /* draft-ietf-mpls-rsvp-lsp-fastreroute-07.txt */
343 static const struct tok rsvp_obj_rro_flag_values[] = {
344 { 0x01, "Local protection available" },
345 { 0x02, "Local protection in use" },
346 { 0x04, "Bandwidth protection" },
347 { 0x08, "Node protection" },
348 { 0, NULL}
349 };
350
351 /* RFC3209 */
352 static const struct tok rsvp_obj_rro_label_flag_values[] = {
353 { 0x01, "Global" },
354 { 0, NULL}
355 };
356
357 static const struct tok rsvp_resstyle_values[] = {
358 { 17, "Wildcard Filter" },
359 { 10, "Fixed Filter" },
360 { 18, "Shared Explicit" },
361 { 0, NULL}
362 };
363
364 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
365 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
366
367 static const struct tok rsvp_intserv_service_type_values[] = {
368 { 1, "Default/Global Information" },
369 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
370 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
371 { 0, NULL}
372 };
373
374 static const struct tok rsvp_intserv_parameter_id_values[] = {
375 { 4, "IS hop cnt" },
376 { 6, "Path b/w estimate" },
377 { 8, "Minimum path latency" },
378 { 10, "Composed MTU" },
379 { 127, "Token Bucket TSpec" },
380 { 130, "Guaranteed Service RSpec" },
381 { 133, "End-to-end composed value for C" },
382 { 134, "End-to-end composed value for D" },
383 { 135, "Since-last-reshaping point composed C" },
384 { 136, "Since-last-reshaping point composed D" },
385 { 0, NULL}
386 };
387
388 static const struct tok rsvp_session_attribute_flag_values[] = {
389 { 0x01, "Local Protection" },
390 { 0x02, "Label Recording" },
391 { 0x04, "SE Style" },
392 { 0x08, "Bandwidth protection" }, /* RFC4090 */
393 { 0x10, "Node protection" }, /* RFC4090 */
394 { 0, NULL}
395 };
396
397 static const struct tok rsvp_obj_prop_tlv_values[] = {
398 { 0x01, "Cos" },
399 { 0x02, "Metric 1" },
400 { 0x04, "Metric 2" },
401 { 0x08, "CCC Status" },
402 { 0x10, "Path Type" },
403 { 0, NULL}
404 };
405
406 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
407 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
408 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28
409 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125
410
411 static const struct tok rsvp_obj_error_code_values[] = {
412 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
413 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
414 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
415 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" },
416 { 0, NULL}
417 };
418
419 static const struct tok rsvp_obj_error_code_routing_values[] = {
420 { 1, "Bad EXPLICIT_ROUTE object" },
421 { 2, "Bad strict node" },
422 { 3, "Bad loose node" },
423 { 4, "Bad initial subobject" },
424 { 5, "No route available toward destination" },
425 { 6, "Unacceptable label value" },
426 { 7, "RRO indicated routing loops" },
427 { 8, "non-RSVP-capable router in the path" },
428 { 9, "MPLS label allocation failure" },
429 { 10, "Unsupported L3PID" },
430 { 0, NULL}
431 };
432
433 static const struct tok rsvp_obj_error_code_diffserv_te_values[] = {
434 { 1, "Unexpected CT object" },
435 { 2, "Unsupported CT" },
436 { 3, "Invalid CT value" },
437 { 4, "CT/setup priority do not form a configured TE-Class" },
438 { 5, "CT/holding priority do not form a configured TE-Class" },
439 { 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" },
440 { 7, "Inconsistency between signaled PSC and signaled CT" },
441 { 8, "Inconsistency between signaled PHBs and signaled CT" },
442 { 0, NULL}
443 };
444
445 /* rfc3473 / rfc 3471 */
446 static const struct tok rsvp_obj_admin_status_flag_values[] = {
447 { 0x80000000, "Reflect" },
448 { 0x00000004, "Testing" },
449 { 0x00000002, "Admin-down" },
450 { 0x00000001, "Delete-in-progress" },
451 { 0, NULL}
452 };
453
454 /* label set actions - rfc3471 */
455 #define LABEL_SET_INCLUSIVE_LIST 0
456 #define LABEL_SET_EXCLUSIVE_LIST 1
457 #define LABEL_SET_INCLUSIVE_RANGE 2
458 #define LABEL_SET_EXCLUSIVE_RANGE 3
459
460 static const struct tok rsvp_obj_label_set_action_values[] = {
461 { LABEL_SET_INCLUSIVE_LIST, "Inclusive list" },
462 { LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" },
463 { LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" },
464 { LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" },
465 { 0, NULL}
466 };
467
468 /* OIF RSVP extensions UNI 1.0 Signaling, release 2 */
469 #define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1
470 #define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2
471 #define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3
472 #define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4
473 #define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5
474
475 static const struct tok rsvp_obj_generalized_uni_values[] = {
476 { RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" },
477 { RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" },
478 { RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" },
479 { RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" },
480 { RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" },
481 { 0, NULL}
482 };
483
484 /*
485 * this is a dissector for all the intserv defined
486 * specs as defined per rfc2215
487 * it is called from various rsvp objects;
488 * returns the amount of bytes being processed
489 */
490 static int
491 rsvp_intserv_print(netdissect_options *ndo,
492 const u_char *tptr, u_short obj_tlen)
493 {
494 int parameter_id,parameter_length;
495 union {
496 float f;
497 uint32_t i;
498 } bw;
499
500 if (obj_tlen < 4)
501 return 0;
502 ND_TCHECK_8BITS(tptr);
503 parameter_id = *(tptr);
504 ND_TCHECK2(*(tptr + 2), 2);
505 parameter_length = EXTRACT_16BITS(tptr+2)<<2; /* convert wordcount to bytecount */
506
507 ND_PRINT((ndo, "\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
508 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
509 parameter_id,
510 parameter_length,
511 *(tptr + 1)));
512
513 if (obj_tlen < parameter_length+4)
514 return 0;
515 switch(parameter_id) { /* parameter_id */
516
517 case 4:
518 /*
519 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
520 * | 4 (e) | (f) | 1 (g) |
521 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
522 * | IS hop cnt (32-bit unsigned integer) |
523 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
524 */
525 if (parameter_length == 4) {
526 ND_TCHECK2(*(tptr + 4), 4);
527 ND_PRINT((ndo, "\n\t\tIS hop count: %u", EXTRACT_32BITS(tptr + 4)));
528 }
529 break;
530
531 case 6:
532 /*
533 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
534 * | 6 (h) | (i) | 1 (j) |
535 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
536 * | Path b/w estimate (32-bit IEEE floating point number) |
537 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
538 */
539 if (parameter_length == 4) {
540 ND_TCHECK2(*(tptr + 4), 4);
541 bw.i = EXTRACT_32BITS(tptr+4);
542 ND_PRINT((ndo, "\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000));
543 }
544 break;
545
546 case 8:
547 /*
548 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
549 * | 8 (k) | (l) | 1 (m) |
550 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
551 * | Minimum path latency (32-bit integer) |
552 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
553 */
554 if (parameter_length == 4) {
555 ND_TCHECK2(*(tptr + 4), 4);
556 ND_PRINT((ndo, "\n\t\tMinimum path latency: "));
557 if (EXTRACT_32BITS(tptr+4) == 0xffffffff)
558 ND_PRINT((ndo, "don't care"));
559 else
560 ND_PRINT((ndo, "%u", EXTRACT_32BITS(tptr + 4)));
561 }
562 break;
563
564 case 10:
565
566 /*
567 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
568 * | 10 (n) | (o) | 1 (p) |
569 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
570 * | Composed MTU (32-bit unsigned integer) |
571 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
572 */
573 if (parameter_length == 4) {
574 ND_TCHECK2(*(tptr + 4), 4);
575 ND_PRINT((ndo, "\n\t\tComposed MTU: %u bytes", EXTRACT_32BITS(tptr + 4)));
576 }
577 break;
578 case 127:
579 /*
580 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
581 * | 127 (e) | 0 (f) | 5 (g) |
582 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
583 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
584 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
585 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
586 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
587 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
588 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
589 * | Minimum Policed Unit [m] (32-bit integer) |
590 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
591 * | Maximum Packet Size [M] (32-bit integer) |
592 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
593 */
594
595 if (parameter_length == 20) {
596 ND_TCHECK2(*(tptr + 4), 20);
597 bw.i = EXTRACT_32BITS(tptr+4);
598 ND_PRINT((ndo, "\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000));
599 bw.i = EXTRACT_32BITS(tptr+8);
600 ND_PRINT((ndo, "\n\t\tToken Bucket Size: %.10g bytes", bw.f));
601 bw.i = EXTRACT_32BITS(tptr+12);
602 ND_PRINT((ndo, "\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000));
603 ND_PRINT((ndo, "\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_32BITS(tptr + 16)));
604 ND_PRINT((ndo, "\n\t\tMaximum Packet Size: %u bytes", EXTRACT_32BITS(tptr + 20)));
605 }
606 break;
607
608 case 130:
609 /*
610 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
611 * | 130 (h) | 0 (i) | 2 (j) |
612 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
613 * | Rate [R] (32-bit IEEE floating point number) |
614 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
615 * | Slack Term [S] (32-bit integer) |
616 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
617 */
618
619 if (parameter_length == 8) {
620 ND_TCHECK2(*(tptr + 4), 8);
621 bw.i = EXTRACT_32BITS(tptr+4);
622 ND_PRINT((ndo, "\n\t\tRate: %.10g Mbps", bw.f / 125000));
623 ND_PRINT((ndo, "\n\t\tSlack Term: %u", EXTRACT_32BITS(tptr + 8)));
624 }
625 break;
626
627 case 133:
628 case 134:
629 case 135:
630 case 136:
631 if (parameter_length == 4) {
632 ND_TCHECK2(*(tptr + 4), 4);
633 ND_PRINT((ndo, "\n\t\tValue: %u", EXTRACT_32BITS(tptr + 4)));
634 }
635 break;
636
637 default:
638 if (ndo->ndo_vflag <= 1)
639 print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
640 }
641 return (parameter_length+4); /* header length 4 bytes */
642
643 trunc:
644 ND_PRINT((ndo, "%s", tstr));
645 return 0;
646 }
647
648 /*
649 * Clear checksum prior to signature verification.
650 */
651 static void
652 rsvp_clear_checksum(void *header)
653 {
654 struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
655
656 rsvp_com_header->checksum[0] = 0;
657 rsvp_com_header->checksum[1] = 0;
658 }
659
660 static int
661 rsvp_obj_print(netdissect_options *ndo,
662 const u_char *pptr, u_int plen, const u_char *tptr,
663 const char *ident, u_int tlen,
664 const struct rsvp_common_header *rsvp_com_header)
665 {
666 const struct rsvp_object_header *rsvp_obj_header;
667 const u_char *obj_tptr;
668 union {
669 const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
670 const struct rsvp_obj_frr_t *rsvp_obj_frr;
671 } obj_ptr;
672
673 u_short rsvp_obj_len,rsvp_obj_ctype,obj_tlen,intserv_serv_tlen;
674 int hexdump,processed,padbytes,error_code,error_value,i,sigcheck;
675 union {
676 float f;
677 uint32_t i;
678 } bw;
679 uint8_t namelen;
680
681 u_int action, subchannel;
682
683 while(tlen>=sizeof(struct rsvp_object_header)) {
684 /* did we capture enough for fully decoding the object header ? */
685 ND_TCHECK2(*tptr, sizeof(struct rsvp_object_header));
686
687 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
688 rsvp_obj_len=EXTRACT_16BITS(rsvp_obj_header->length);
689 rsvp_obj_ctype=rsvp_obj_header->ctype;
690
691 if(rsvp_obj_len % 4) {
692 ND_PRINT((ndo, "%sERROR: object header size %u not a multiple of 4", ident, rsvp_obj_len));
693 return -1;
694 }
695 if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
696 ND_PRINT((ndo, "%sERROR: object header too short %u < %lu", ident, rsvp_obj_len,
697 (unsigned long)sizeof(const struct rsvp_object_header)));
698 return -1;
699 }
700
701 ND_PRINT((ndo, "%s%s Object (%u) Flags: [%s",
702 ident,
703 tok2str(rsvp_obj_values,
704 "Unknown",
705 rsvp_obj_header->class_num),
706 rsvp_obj_header->class_num,
707 ((rsvp_obj_header->class_num) & 0x80) ? "ignore" : "reject"));
708
709 if (rsvp_obj_header->class_num > 128)
710 ND_PRINT((ndo, " %s",
711 ((rsvp_obj_header->class_num) & 0x40) ? "and forward" : "silently"));
712
713 ND_PRINT((ndo, " if unknown], Class-Type: %s (%u), length: %u",
714 tok2str(rsvp_ctype_values,
715 "Unknown",
716 ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
717 rsvp_obj_ctype,
718 rsvp_obj_len));
719
720 if(tlen < rsvp_obj_len) {
721 ND_PRINT((ndo, "%sERROR: object goes past end of objects TLV", ident));
722 return -1;
723 }
724
725 obj_tptr=tptr+sizeof(struct rsvp_object_header);
726 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
727
728 /* did we capture enough for fully decoding the object ? */
729 if (!ND_TTEST2(*tptr, rsvp_obj_len))
730 return -1;
731 hexdump=FALSE;
732
733 switch(rsvp_obj_header->class_num) {
734 case RSVP_OBJ_SESSION:
735 switch(rsvp_obj_ctype) {
736 case RSVP_CTYPE_IPV4:
737 if (obj_tlen < 8)
738 return -1;
739 ND_PRINT((ndo, "%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
740 ident,
741 ipaddr_string(ndo, obj_tptr),
742 *(obj_tptr + sizeof(struct in_addr))));
743 ND_PRINT((ndo, "%s Flags: [0x%02x], DestPort %u",
744 ident,
745 *(obj_tptr+5),
746 EXTRACT_16BITS(obj_tptr + 6)));
747 obj_tlen-=8;
748 obj_tptr+=8;
749 break;
750 case RSVP_CTYPE_IPV6:
751 if (obj_tlen < 20)
752 return -1;
753 ND_PRINT((ndo, "%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
754 ident,
755 ip6addr_string(ndo, obj_tptr),
756 *(obj_tptr + sizeof(struct in6_addr))));
757 ND_PRINT((ndo, "%s Flags: [0x%02x], DestPort %u",
758 ident,
759 *(obj_tptr+sizeof(struct in6_addr)+1),
760 EXTRACT_16BITS(obj_tptr + sizeof(struct in6_addr) + 2)));
761 obj_tlen-=20;
762 obj_tptr+=20;
763 break;
764
765 case RSVP_CTYPE_TUNNEL_IPV6:
766 if (obj_tlen < 36)
767 return -1;
768 ND_PRINT((ndo, "%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
769 ident,
770 ip6addr_string(ndo, obj_tptr),
771 EXTRACT_16BITS(obj_tptr+18),
772 ip6addr_string(ndo, obj_tptr + 20)));
773 obj_tlen-=36;
774 obj_tptr+=36;
775 break;
776
777 case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
778 if (obj_tlen < 26)
779 return -1;
780 ND_PRINT((ndo, "%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
781 ident,
782 EXTRACT_32BITS(obj_tptr),
783 EXTRACT_16BITS(obj_tptr+6),
784 ip6addr_string(ndo, obj_tptr + 8)));
785 obj_tlen-=26;
786 obj_tptr+=26;
787 break;
788 case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
789 if (obj_tlen < 12)
790 return -1;
791 ND_PRINT((ndo, "%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
792 ident,
793 ipaddr_string(ndo, obj_tptr),
794 EXTRACT_16BITS(obj_tptr+6),
795 ipaddr_string(ndo, obj_tptr + 8)));
796 obj_tlen-=12;
797 obj_tptr+=12;
798 break;
799 case RSVP_CTYPE_TUNNEL_IPV4:
800 case RSVP_CTYPE_UNI_IPV4:
801 if (obj_tlen < 12)
802 return -1;
803 ND_PRINT((ndo, "%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
804 ident,
805 ipaddr_string(ndo, obj_tptr),
806 EXTRACT_16BITS(obj_tptr+6),
807 ipaddr_string(ndo, obj_tptr + 8)));
808 obj_tlen-=12;
809 obj_tptr+=12;
810 break;
811 default:
812 hexdump=TRUE;
813 }
814 break;
815
816 case RSVP_OBJ_CONFIRM:
817 switch(rsvp_obj_ctype) {
818 case RSVP_CTYPE_IPV4:
819 if (obj_tlen < sizeof(struct in_addr))
820 return -1;
821 ND_PRINT((ndo, "%s IPv4 Receiver Address: %s",
822 ident,
823 ipaddr_string(ndo, obj_tptr)));
824 obj_tlen-=sizeof(struct in_addr);
825 obj_tptr+=sizeof(struct in_addr);
826 break;
827 case RSVP_CTYPE_IPV6:
828 if (obj_tlen < sizeof(struct in6_addr))
829 return -1;
830 ND_PRINT((ndo, "%s IPv6 Receiver Address: %s",
831 ident,
832 ip6addr_string(ndo, obj_tptr)));
833 obj_tlen-=sizeof(struct in6_addr);
834 obj_tptr+=sizeof(struct in6_addr);
835 break;
836 default:
837 hexdump=TRUE;
838 }
839 break;
840
841 case RSVP_OBJ_NOTIFY_REQ:
842 switch(rsvp_obj_ctype) {
843 case RSVP_CTYPE_IPV4:
844 if (obj_tlen < sizeof(struct in_addr))
845 return -1;
846 ND_PRINT((ndo, "%s IPv4 Notify Node Address: %s",
847 ident,
848 ipaddr_string(ndo, obj_tptr)));
849 obj_tlen-=sizeof(struct in_addr);
850 obj_tptr+=sizeof(struct in_addr);
851 break;
852 case RSVP_CTYPE_IPV6:
853 if (obj_tlen < sizeof(struct in6_addr))
854 return-1;
855 ND_PRINT((ndo, "%s IPv6 Notify Node Address: %s",
856 ident,
857 ip6addr_string(ndo, obj_tptr)));
858 obj_tlen-=sizeof(struct in6_addr);
859 obj_tptr+=sizeof(struct in6_addr);
860 break;
861 default:
862 hexdump=TRUE;
863 }
864 break;
865
866 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
867 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
868 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
869 case RSVP_OBJ_LABEL:
870 switch(rsvp_obj_ctype) {
871 case RSVP_CTYPE_1:
872 while(obj_tlen >= 4 ) {
873 ND_PRINT((ndo, "%s Label: %u", ident, EXTRACT_32BITS(obj_tptr)));
874 obj_tlen-=4;
875 obj_tptr+=4;
876 }
877 break;
878 case RSVP_CTYPE_2:
879 if (obj_tlen < 4)
880 return-1;
881 ND_PRINT((ndo, "%s Generalized Label: %u",
882 ident,
883 EXTRACT_32BITS(obj_tptr)));
884 obj_tlen-=4;
885 obj_tptr+=4;
886 break;
887 case RSVP_CTYPE_3:
888 if (obj_tlen < 12)
889 return-1;
890 ND_PRINT((ndo, "%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
891 ident,
892 EXTRACT_32BITS(obj_tptr),
893 ident,
894 EXTRACT_32BITS(obj_tptr+4),
895 EXTRACT_32BITS(obj_tptr + 8)));
896 obj_tlen-=12;
897 obj_tptr+=12;
898 break;
899 default:
900 hexdump=TRUE;
901 }
902 break;
903
904 case RSVP_OBJ_STYLE:
905 switch(rsvp_obj_ctype) {
906 case RSVP_CTYPE_1:
907 if (obj_tlen < 4)
908 return-1;
909 ND_PRINT((ndo, "%s Reservation Style: %s, Flags: [0x%02x]",
910 ident,
911 tok2str(rsvp_resstyle_values,
912 "Unknown",
913 EXTRACT_24BITS(obj_tptr+1)),
914 *(obj_tptr)));
915 obj_tlen-=4;
916 obj_tptr+=4;
917 break;
918 default:
919 hexdump=TRUE;
920 }
921 break;
922
923 case RSVP_OBJ_SENDER_TEMPLATE:
924 switch(rsvp_obj_ctype) {
925 case RSVP_CTYPE_IPV4:
926 if (obj_tlen < 8)
927 return-1;
928 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
929 ident,
930 ipaddr_string(ndo, obj_tptr),
931 EXTRACT_16BITS(obj_tptr + 6)));
932 obj_tlen-=8;
933 obj_tptr+=8;
934 break;
935 case RSVP_CTYPE_IPV6:
936 if (obj_tlen < 20)
937 return-1;
938 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
939 ident,
940 ip6addr_string(ndo, obj_tptr),
941 EXTRACT_16BITS(obj_tptr + 18)));
942 obj_tlen-=20;
943 obj_tptr+=20;
944 break;
945 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
946 if (obj_tlen < 40)
947 return-1;
948 ND_PRINT((ndo, "%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
949 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
950 ident,
951 ip6addr_string(ndo, obj_tptr),
952 EXTRACT_16BITS(obj_tptr+18),
953 ident,
954 ip6addr_string(ndo, obj_tptr+20),
955 EXTRACT_16BITS(obj_tptr + 38)));
956 obj_tlen-=40;
957 obj_tptr+=40;
958 break;
959 case RSVP_CTYPE_TUNNEL_IPV4:
960 if (obj_tlen < 8)
961 return-1;
962 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
963 ident,
964 ipaddr_string(ndo, obj_tptr),
965 EXTRACT_16BITS(obj_tptr + 6)));
966 obj_tlen-=8;
967 obj_tptr+=8;
968 break;
969 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
970 if (obj_tlen < 16)
971 return-1;
972 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
973 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
974 ident,
975 ipaddr_string(ndo, obj_tptr),
976 EXTRACT_16BITS(obj_tptr+6),
977 ident,
978 ipaddr_string(ndo, obj_tptr+8),
979 EXTRACT_16BITS(obj_tptr + 12)));
980 obj_tlen-=16;
981 obj_tptr+=16;
982 break;
983 default:
984 hexdump=TRUE;
985 }
986 break;
987
988 case RSVP_OBJ_LABEL_REQ:
989 switch(rsvp_obj_ctype) {
990 case RSVP_CTYPE_1:
991 while(obj_tlen >= 4 ) {
992 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
993 ident,
994 tok2str(ethertype_values,
995 "Unknown Protocol (0x%04x)",
996 EXTRACT_16BITS(obj_tptr + 2))));
997 obj_tlen-=4;
998 obj_tptr+=4;
999 }
1000 break;
1001 case RSVP_CTYPE_2:
1002 if (obj_tlen < 12)
1003 return-1;
1004 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
1005 ident,
1006 tok2str(ethertype_values,
1007 "Unknown Protocol (0x%04x)",
1008 EXTRACT_16BITS(obj_tptr + 2))));
1009 ND_PRINT((ndo, ",%s merge capability",((*(obj_tptr + 4)) & 0x80) ? "no" : "" ));
1010 ND_PRINT((ndo, "%s Minimum VPI/VCI: %u/%u",
1011 ident,
1012 (EXTRACT_16BITS(obj_tptr+4))&0xfff,
1013 (EXTRACT_16BITS(obj_tptr + 6)) & 0xfff));
1014 ND_PRINT((ndo, "%s Maximum VPI/VCI: %u/%u",
1015 ident,
1016 (EXTRACT_16BITS(obj_tptr+8))&0xfff,
1017 (EXTRACT_16BITS(obj_tptr + 10)) & 0xfff));
1018 obj_tlen-=12;
1019 obj_tptr+=12;
1020 break;
1021 case RSVP_CTYPE_3:
1022 if (obj_tlen < 12)
1023 return-1;
1024 ND_PRINT((ndo, "%s L3 Protocol ID: %s",
1025 ident,
1026 tok2str(ethertype_values,
1027 "Unknown Protocol (0x%04x)",
1028 EXTRACT_16BITS(obj_tptr + 2))));
1029 ND_PRINT((ndo, "%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1030 ident,
1031 (EXTRACT_32BITS(obj_tptr+4))&0x7fffff,
1032 (EXTRACT_32BITS(obj_tptr+8))&0x7fffff,
1033 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 0 ) ? "10" : "",
1034 (((EXTRACT_16BITS(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : ""));
1035 obj_tlen-=12;
1036 obj_tptr+=12;
1037 break;
1038 case RSVP_CTYPE_4:
1039 if (obj_tlen < 4)
1040 return-1;
1041 ND_PRINT((ndo, "%s LSP Encoding Type: %s (%u)",
1042 ident,
1043 tok2str(gmpls_encoding_values,
1044 "Unknown",
1045 *obj_tptr),
1046 *obj_tptr));
1047 ND_PRINT((ndo, "%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
1048 ident,
1049 tok2str(gmpls_switch_cap_values,
1050 "Unknown",
1051 *(obj_tptr+1)),
1052 *(obj_tptr+1),
1053 tok2str(gmpls_payload_values,
1054 "Unknown",
1055 EXTRACT_16BITS(obj_tptr+2)),
1056 EXTRACT_16BITS(obj_tptr + 2)));
1057 obj_tlen-=4;
1058 obj_tptr+=4;
1059 break;
1060 default:
1061 hexdump=TRUE;
1062 }
1063 break;
1064
1065 case RSVP_OBJ_RRO:
1066 case RSVP_OBJ_ERO:
1067 switch(rsvp_obj_ctype) {
1068 case RSVP_CTYPE_IPV4:
1069 while(obj_tlen >= 4 ) {
1070 u_char length;
1071
1072 ND_TCHECK2(*obj_tptr, 4);
1073 length = *(obj_tptr + 1);
1074 ND_PRINT((ndo, "%s Subobject Type: %s, length %u",
1075 ident,
1076 tok2str(rsvp_obj_xro_values,
1077 "Unknown %u",
1078 RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)),
1079 length));
1080
1081 if (length == 0) { /* prevent infinite loops */
1082 ND_PRINT((ndo, "%s ERROR: zero length ERO subtype", ident));
1083 break;
1084 }
1085
1086 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)) {
1087 u_char prefix_length;
1088
1089 case RSVP_OBJ_XRO_IPV4:
1090 if (length != 8) {
1091 ND_PRINT((ndo, " ERROR: length != 8"));
1092 goto invalid;
1093 }
1094 ND_TCHECK2(*obj_tptr, 8);
1095 prefix_length = *(obj_tptr+6);
1096 if (prefix_length != 32) {
1097 ND_PRINT((ndo, " ERROR: Prefix length %u != 32",
1098 prefix_length));
1099 goto invalid;
1100 }
1101 ND_PRINT((ndo, ", %s, %s/%u, Flags: [%s]",
1102 RSVP_OBJ_XRO_MASK_LOOSE(*obj_tptr) ? "Loose" : "Strict",
1103 ipaddr_string(ndo, obj_tptr+2),
1104 *(obj_tptr+6),
1105 bittok2str(rsvp_obj_rro_flag_values,
1106 "none",
1107 *(obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */
1108 break;
1109 case RSVP_OBJ_XRO_LABEL:
1110 if (length != 8) {
1111 ND_PRINT((ndo, " ERROR: length != 8"));
1112 goto invalid;
1113 }
1114 ND_TCHECK2(*obj_tptr, 8);
1115 ND_PRINT((ndo, ", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1116 bittok2str(rsvp_obj_rro_label_flag_values,
1117 "none",
1118 *(obj_tptr+2)),
1119 *(obj_tptr+2),
1120 tok2str(rsvp_ctype_values,
1121 "Unknown",
1122 *(obj_tptr+3) + 256*RSVP_OBJ_RRO),
1123 *(obj_tptr+3),
1124 EXTRACT_32BITS(obj_tptr + 4)));
1125 }
1126 obj_tlen-=*(obj_tptr+1);
1127 obj_tptr+=*(obj_tptr+1);
1128 }
1129 break;
1130 default:
1131 hexdump=TRUE;
1132 }
1133 break;
1134
1135 case RSVP_OBJ_HELLO:
1136 switch(rsvp_obj_ctype) {
1137 case RSVP_CTYPE_1:
1138 case RSVP_CTYPE_2:
1139 if (obj_tlen < 8)
1140 return-1;
1141 ND_PRINT((ndo, "%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1142 ident,
1143 EXTRACT_32BITS(obj_tptr),
1144 EXTRACT_32BITS(obj_tptr + 4)));
1145 obj_tlen-=8;
1146 obj_tptr+=8;
1147 break;
1148 default:
1149 hexdump=TRUE;
1150 }
1151 break;
1152
1153 case RSVP_OBJ_RESTART_CAPABILITY:
1154 switch(rsvp_obj_ctype) {
1155 case RSVP_CTYPE_1:
1156 if (obj_tlen < 8)
1157 return-1;
1158 ND_PRINT((ndo, "%s Restart Time: %ums, Recovery Time: %ums",
1159 ident,
1160 EXTRACT_32BITS(obj_tptr),
1161 EXTRACT_32BITS(obj_tptr + 4)));
1162 obj_tlen-=8;
1163 obj_tptr+=8;
1164 break;
1165 default:
1166 hexdump=TRUE;
1167 }
1168 break;
1169
1170 case RSVP_OBJ_SESSION_ATTRIBUTE:
1171 switch(rsvp_obj_ctype) {
1172 case RSVP_CTYPE_TUNNEL_IPV4:
1173 if (obj_tlen < 4)
1174 return-1;
1175 namelen = *(obj_tptr+3);
1176 if (obj_tlen < 4+namelen)
1177 return-1;
1178 ND_PRINT((ndo, "%s Session Name: ", ident));
1179 for (i = 0; i < namelen; i++)
1180 safeputchar(ndo, *(obj_tptr + 4 + i));
1181 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1182 ident,
1183 (int)*obj_tptr,
1184 (int)*(obj_tptr+1),
1185 bittok2str(rsvp_session_attribute_flag_values,
1186 "none",
1187 *(obj_tptr+2)),
1188 *(obj_tptr + 2)));
1189 obj_tlen-=4+*(obj_tptr+3);
1190 obj_tptr+=4+*(obj_tptr+3);
1191 break;
1192 default:
1193 hexdump=TRUE;
1194 }
1195 break;
1196
1197 case RSVP_OBJ_GENERALIZED_UNI:
1198 switch(rsvp_obj_ctype) {
1199 int subobj_type,af,subobj_len,total_subobj_len;
1200
1201 case RSVP_CTYPE_1:
1202
1203 if (obj_tlen < 4)
1204 return-1;
1205
1206 /* read variable length subobjects */
1207 total_subobj_len = obj_tlen;
1208 while(total_subobj_len > 0) {
1209 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1210 * GENERALIZED_UNI RSVP object must have the Length field as
1211 * a multiple of 4, instead of the check below it would be
1212 * better to test total_subobj_len only once before the loop.
1213 * So long as it does not define it and this while loop does
1214 * not implement such a requirement, let's accept that within
1215 * each iteration subobj_len may happen to be a multiple of 1
1216 * and test it and total_subobj_len respectively.
1217 */
1218 if (total_subobj_len < 4)
1219 goto invalid;
1220 subobj_len = EXTRACT_16BITS(obj_tptr);
1221 subobj_type = (EXTRACT_16BITS(obj_tptr+2))>>8;
1222 af = (EXTRACT_16BITS(obj_tptr+2))&0x00FF;
1223
1224 ND_PRINT((ndo, "%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1225 ident,
1226 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1227 subobj_type,
1228 tok2str(af_values, "Unknown", af), af,
1229 subobj_len));
1230
1231 /* In addition to what is explained above, the same spec does not
1232 * explicitly say that the same Length field includes the 4-octet
1233 * sub-object header, but as long as this while loop implements it
1234 * as it does include, let's keep the check below consistent with
1235 * the rest of the code.
1236 */
1237 if(subobj_len < 4 || subobj_len > total_subobj_len)
1238 goto invalid;
1239
1240 switch(subobj_type) {
1241 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1242 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1243
1244 switch(af) {
1245 case AFNUM_INET:
1246 if (subobj_len < 8)
1247 return -1;
1248 ND_PRINT((ndo, "%s UNI IPv4 TNA address: %s",
1249 ident, ipaddr_string(ndo, obj_tptr + 4)));
1250 break;
1251 case AFNUM_INET6:
1252 if (subobj_len < 20)
1253 return -1;
1254 ND_PRINT((ndo, "%s UNI IPv6 TNA address: %s",
1255 ident, ip6addr_string(ndo, obj_tptr + 4)));
1256 break;
1257 case AFNUM_NSAP:
1258 if (subobj_len) {
1259 /* unless we have a TLV parser lets just hexdump */
1260 hexdump=TRUE;
1261 }
1262 break;
1263 }
1264 break;
1265
1266 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1267 if (subobj_len) {
1268 /* unless we have a TLV parser lets just hexdump */
1269 hexdump=TRUE;
1270 }
1271 break;
1272
1273 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1274 if (subobj_len < 16) {
1275 return -1;
1276 }
1277
1278 ND_PRINT((ndo, "%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1279 ident,
1280 ((EXTRACT_32BITS(obj_tptr+4))>>31),
1281 ((EXTRACT_32BITS(obj_tptr+4))&0xFF),
1282 EXTRACT_32BITS(obj_tptr+8),
1283 EXTRACT_32BITS(obj_tptr + 12)));
1284 break;
1285
1286 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1287 if (subobj_len < 8) {
1288 return -1;
1289 }
1290
1291 ND_PRINT((ndo, "%s Service level: %u",
1292 ident, (EXTRACT_32BITS(obj_tptr + 4)) >> 24));
1293 break;
1294
1295 default:
1296 hexdump=TRUE;
1297 break;
1298 }
1299 total_subobj_len-=subobj_len;
1300 obj_tptr+=subobj_len;
1301 obj_tlen+=subobj_len;
1302 }
1303
1304 if (total_subobj_len) {
1305 /* unless we have a TLV parser lets just hexdump */
1306 hexdump=TRUE;
1307 }
1308 break;
1309
1310 default:
1311 hexdump=TRUE;
1312 }
1313 break;
1314
1315 case RSVP_OBJ_RSVP_HOP:
1316 switch(rsvp_obj_ctype) {
1317 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1318 case RSVP_CTYPE_IPV4:
1319 if (obj_tlen < 8)
1320 return-1;
1321 ND_PRINT((ndo, "%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1322 ident,
1323 ipaddr_string(ndo, obj_tptr),
1324 EXTRACT_32BITS(obj_tptr + 4)));
1325 obj_tlen-=8;
1326 obj_tptr+=8;
1327 if (obj_tlen)
1328 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1329 break;
1330 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1331 case RSVP_CTYPE_IPV6:
1332 if (obj_tlen < 20)
1333 return-1;
1334 ND_PRINT((ndo, "%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1335 ident,
1336 ip6addr_string(ndo, obj_tptr),
1337 EXTRACT_32BITS(obj_tptr + 16)));
1338 obj_tlen-=20;
1339 obj_tptr+=20;
1340 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1341 break;
1342 default:
1343 hexdump=TRUE;
1344 }
1345 break;
1346
1347 case RSVP_OBJ_TIME_VALUES:
1348 switch(rsvp_obj_ctype) {
1349 case RSVP_CTYPE_1:
1350 if (obj_tlen < 4)
1351 return-1;
1352 ND_PRINT((ndo, "%s Refresh Period: %ums",
1353 ident,
1354 EXTRACT_32BITS(obj_tptr)));
1355 obj_tlen-=4;
1356 obj_tptr+=4;
1357 break;
1358 default:
1359 hexdump=TRUE;
1360 }
1361 break;
1362
1363 /* those three objects do share the same semantics */
1364 case RSVP_OBJ_SENDER_TSPEC:
1365 case RSVP_OBJ_ADSPEC:
1366 case RSVP_OBJ_FLOWSPEC:
1367 switch(rsvp_obj_ctype) {
1368 case RSVP_CTYPE_2:
1369 if (obj_tlen < 4)
1370 return-1;
1371 ND_PRINT((ndo, "%s Msg-Version: %u, length: %u",
1372 ident,
1373 (*obj_tptr & 0xf0) >> 4,
1374 EXTRACT_16BITS(obj_tptr + 2) << 2));
1375 obj_tptr+=4; /* get to the start of the service header */
1376 obj_tlen-=4;
1377
1378 while (obj_tlen >= 4) {
1379 intserv_serv_tlen=EXTRACT_16BITS(obj_tptr+2)<<2;
1380 ND_PRINT((ndo, "%s Service Type: %s (%u), break bit %s set, Service length: %u",
1381 ident,
1382 tok2str(rsvp_intserv_service_type_values,"unknown",*(obj_tptr)),
1383 *(obj_tptr),
1384 (*(obj_tptr+1)&0x80) ? "" : "not",
1385 intserv_serv_tlen));
1386
1387 obj_tptr+=4; /* get to the start of the parameter list */
1388 obj_tlen-=4;
1389
1390 while (intserv_serv_tlen>=4) {
1391 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1392 if (processed == 0)
1393 break;
1394 obj_tlen-=processed;
1395 intserv_serv_tlen-=processed;
1396 obj_tptr+=processed;
1397 }
1398 }
1399 break;
1400 default:
1401 hexdump=TRUE;
1402 }
1403 break;
1404
1405 case RSVP_OBJ_FILTERSPEC:
1406 switch(rsvp_obj_ctype) {
1407 case RSVP_CTYPE_IPV4:
1408 if (obj_tlen < 8)
1409 return-1;
1410 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
1411 ident,
1412 ipaddr_string(ndo, obj_tptr),
1413 EXTRACT_16BITS(obj_tptr + 6)));
1414 obj_tlen-=8;
1415 obj_tptr+=8;
1416 break;
1417 case RSVP_CTYPE_IPV6:
1418 if (obj_tlen < 20)
1419 return-1;
1420 ND_PRINT((ndo, "%s Source Address: %s, Source Port: %u",
1421 ident,
1422 ip6addr_string(ndo, obj_tptr),
1423 EXTRACT_16BITS(obj_tptr + 18)));
1424 obj_tlen-=20;
1425 obj_tptr+=20;
1426 break;
1427 case RSVP_CTYPE_3:
1428 if (obj_tlen < 20)
1429 return-1;
1430 ND_PRINT((ndo, "%s Source Address: %s, Flow Label: %u",
1431 ident,
1432 ip6addr_string(ndo, obj_tptr),
1433 EXTRACT_24BITS(obj_tptr + 17)));
1434 obj_tlen-=20;
1435 obj_tptr+=20;
1436 break;
1437 case RSVP_CTYPE_TUNNEL_IPV6:
1438 if (obj_tlen < 20)
1439 return-1;
1440 ND_PRINT((ndo, "%s Source Address: %s, LSP-ID: 0x%04x",
1441 ident,
1442 ipaddr_string(ndo, obj_tptr),
1443 EXTRACT_16BITS(obj_tptr + 18)));
1444 obj_tlen-=20;
1445 obj_tptr+=20;
1446 break;
1447 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1448 if (obj_tlen < 40)
1449 return-1;
1450 ND_PRINT((ndo, "%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1451 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1452 ident,
1453 ip6addr_string(ndo, obj_tptr),
1454 EXTRACT_16BITS(obj_tptr+18),
1455 ident,
1456 ip6addr_string(ndo, obj_tptr+20),
1457 EXTRACT_16BITS(obj_tptr + 38)));
1458 obj_tlen-=40;
1459 obj_tptr+=40;
1460 break;
1461 case RSVP_CTYPE_TUNNEL_IPV4:
1462 if (obj_tlen < 8)
1463 return-1;
1464 ND_PRINT((ndo, "%s Source Address: %s, LSP-ID: 0x%04x",
1465 ident,
1466 ipaddr_string(ndo, obj_tptr),
1467 EXTRACT_16BITS(obj_tptr + 6)));
1468 obj_tlen-=8;
1469 obj_tptr+=8;
1470 break;
1471 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1472 if (obj_tlen < 16)
1473 return-1;
1474 ND_PRINT((ndo, "%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1475 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1476 ident,
1477 ipaddr_string(ndo, obj_tptr),
1478 EXTRACT_16BITS(obj_tptr+6),
1479 ident,
1480 ipaddr_string(ndo, obj_tptr+8),
1481 EXTRACT_16BITS(obj_tptr + 12)));
1482 obj_tlen-=16;
1483 obj_tptr+=16;
1484 break;
1485 default:
1486 hexdump=TRUE;
1487 }
1488 break;
1489
1490 case RSVP_OBJ_FASTREROUTE:
1491 /* the differences between c-type 1 and 7 are minor */
1492 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1493
1494 switch(rsvp_obj_ctype) {
1495 case RSVP_CTYPE_1: /* new style */
1496 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1497 return-1;
1498 bw.i = EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->bandwidth);
1499 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1500 ident,
1501 (int)obj_ptr.rsvp_obj_frr->setup_prio,
1502 (int)obj_ptr.rsvp_obj_frr->hold_prio,
1503 (int)obj_ptr.rsvp_obj_frr->hop_limit,
1504 bw.f * 8 / 1000000));
1505 ND_PRINT((ndo, "%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1506 ident,
1507 EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->include_any),
1508 EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->exclude_any),
1509 EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->include_all)));
1510 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1511 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1512 break;
1513
1514 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1515 if (obj_tlen < 16)
1516 return-1;
1517 bw.i = EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->bandwidth);
1518 ND_PRINT((ndo, "%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1519 ident,
1520 (int)obj_ptr.rsvp_obj_frr->setup_prio,
1521 (int)obj_ptr.rsvp_obj_frr->hold_prio,
1522 (int)obj_ptr.rsvp_obj_frr->hop_limit,
1523 bw.f * 8 / 1000000));
1524 ND_PRINT((ndo, "%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1525 ident,
1526 EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->include_any),
1527 EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->exclude_any)));
1528 obj_tlen-=16;
1529 obj_tptr+=16;
1530 break;
1531
1532 default:
1533 hexdump=TRUE;
1534 }
1535 break;
1536
1537 case RSVP_OBJ_DETOUR:
1538 switch(rsvp_obj_ctype) {
1539 case RSVP_CTYPE_TUNNEL_IPV4:
1540 while(obj_tlen >= 8) {
1541 ND_PRINT((ndo, "%s PLR-ID: %s, Avoid-Node-ID: %s",
1542 ident,
1543 ipaddr_string(ndo, obj_tptr),
1544 ipaddr_string(ndo, obj_tptr + 4)));
1545 obj_tlen-=8;
1546 obj_tptr+=8;
1547 }
1548 break;
1549 default:
1550 hexdump=TRUE;
1551 }
1552 break;
1553
1554 case RSVP_OBJ_CLASSTYPE:
1555 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1556 switch(rsvp_obj_ctype) {
1557 case RSVP_CTYPE_1:
1558 ND_TCHECK_32BITS(obj_tptr);
1559 ND_PRINT((ndo, "%s CT: %u",
1560 ident,
1561 EXTRACT_32BITS(obj_tptr) & 0x7));
1562 obj_tlen-=4;
1563 obj_tptr+=4;
1564 break;
1565 default:
1566 hexdump=TRUE;
1567 }
1568 break;
1569
1570 case RSVP_OBJ_ERROR_SPEC:
1571 switch(rsvp_obj_ctype) {
1572 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1573 case RSVP_CTYPE_IPV4:
1574 if (obj_tlen < 8)
1575 return-1;
1576 error_code=*(obj_tptr+5);
1577 error_value=EXTRACT_16BITS(obj_tptr+6);
1578 ND_PRINT((ndo, "%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1579 ident,
1580 ipaddr_string(ndo, obj_tptr),
1581 *(obj_tptr+4),
1582 ident,
1583 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1584 error_code));
1585 switch (error_code) {
1586 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1587 ND_PRINT((ndo, ", Error Value: %s (%u)",
1588 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1589 error_value));
1590 break;
1591 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1592 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1593 ND_PRINT((ndo, ", Error Value: %s (%u)",
1594 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1595 error_value));
1596 break;
1597 default:
1598 ND_PRINT((ndo, ", Unknown Error Value (%u)", error_value));
1599 break;
1600 }
1601 obj_tlen-=8;
1602 obj_tptr+=8;
1603 break;
1604 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1605 case RSVP_CTYPE_IPV6:
1606 if (obj_tlen < 20)
1607 return-1;
1608 error_code=*(obj_tptr+17);
1609 error_value=EXTRACT_16BITS(obj_tptr+18);
1610 ND_PRINT((ndo, "%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1611 ident,
1612 ip6addr_string(ndo, obj_tptr),
1613 *(obj_tptr+16),
1614 ident,
1615 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1616 error_code));
1617
1618 switch (error_code) {
1619 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1620 ND_PRINT((ndo, ", Error Value: %s (%u)",
1621 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1622 error_value));
1623 break;
1624 default:
1625 break;
1626 }
1627 obj_tlen-=20;
1628 obj_tptr+=20;
1629 break;
1630 default:
1631 hexdump=TRUE;
1632 }
1633 break;
1634
1635 case RSVP_OBJ_PROPERTIES:
1636 switch(rsvp_obj_ctype) {
1637 case RSVP_CTYPE_1:
1638 if (obj_tlen < 4)
1639 return-1;
1640 padbytes = EXTRACT_16BITS(obj_tptr+2);
1641 ND_PRINT((ndo, "%s TLV count: %u, padding bytes: %u",
1642 ident,
1643 EXTRACT_16BITS(obj_tptr),
1644 padbytes));
1645 obj_tlen-=4;
1646 obj_tptr+=4;
1647 /* loop through as long there is anything longer than the TLV header (2) */
1648 while(obj_tlen >= 2 + padbytes) {
1649 ND_PRINT((ndo, "%s %s TLV (0x%02x), length: %u", /* length includes header */
1650 ident,
1651 tok2str(rsvp_obj_prop_tlv_values,"unknown",*obj_tptr),
1652 *obj_tptr,
1653 *(obj_tptr + 1)));
1654 if (obj_tlen < *(obj_tptr+1))
1655 return-1;
1656 if (*(obj_tptr+1) < 2)
1657 return -1;
1658 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t", *(obj_tptr + 1) - 2);
1659 obj_tlen-=*(obj_tptr+1);
1660 obj_tptr+=*(obj_tptr+1);
1661 }
1662 break;
1663 default:
1664 hexdump=TRUE;
1665 }
1666 break;
1667
1668 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1669 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1670 case RSVP_OBJ_MESSAGE_ID_LIST:
1671 switch(rsvp_obj_ctype) {
1672 case RSVP_CTYPE_1:
1673 case RSVP_CTYPE_2:
1674 if (obj_tlen < 8)
1675 return-1;
1676 ND_PRINT((ndo, "%s Flags [0x%02x], epoch: %u",
1677 ident,
1678 *obj_tptr,
1679 EXTRACT_24BITS(obj_tptr + 1)));
1680 obj_tlen-=4;
1681 obj_tptr+=4;
1682 /* loop through as long there are no messages left */
1683 while(obj_tlen >= 4) {
1684 ND_PRINT((ndo, "%s Message-ID 0x%08x (%u)",
1685 ident,
1686 EXTRACT_32BITS(obj_tptr),
1687 EXTRACT_32BITS(obj_tptr)));
1688 obj_tlen-=4;
1689 obj_tptr+=4;
1690 }
1691 break;
1692 default:
1693 hexdump=TRUE;
1694 }
1695 break;
1696
1697 case RSVP_OBJ_INTEGRITY:
1698 switch(rsvp_obj_ctype) {
1699 case RSVP_CTYPE_1:
1700 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1701 return-1;
1702 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1703 ND_PRINT((ndo, "%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1704 ident,
1705 EXTRACT_16BITS(obj_ptr.rsvp_obj_integrity->key_id),
1706 EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->key_id+2),
1707 EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->sequence),
1708 EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->sequence+4),
1709 bittok2str(rsvp_obj_integrity_flag_values,
1710 "none",
1711 obj_ptr.rsvp_obj_integrity->flags)));
1712 ND_PRINT((ndo, "%s MD5-sum 0x%08x%08x%08x%08x ",
1713 ident,
1714 EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest),
1715 EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest+4),
1716 EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest+8),
1717 EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest + 12)));
1718
1719 sigcheck = signature_verify(ndo, pptr, plen,
1720 obj_ptr.rsvp_obj_integrity->digest,
1721 rsvp_clear_checksum,
1722 rsvp_com_header);
1723 ND_PRINT((ndo, " (%s)", tok2str(signature_check_values, "Unknown", sigcheck)));
1724
1725 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1726 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1727 break;
1728 default:
1729 hexdump=TRUE;
1730 }
1731 break;
1732
1733 case RSVP_OBJ_ADMIN_STATUS:
1734 switch(rsvp_obj_ctype) {
1735 case RSVP_CTYPE_1:
1736 if (obj_tlen < 4)
1737 return-1;
1738 ND_PRINT((ndo, "%s Flags [%s]", ident,
1739 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1740 EXTRACT_32BITS(obj_tptr))));
1741 obj_tlen-=4;
1742 obj_tptr+=4;
1743 break;
1744 default:
1745 hexdump=TRUE;
1746 }
1747 break;
1748
1749 case RSVP_OBJ_LABEL_SET:
1750 switch(rsvp_obj_ctype) {
1751 case RSVP_CTYPE_1:
1752 if (obj_tlen < 4)
1753 return-1;
1754 action = (EXTRACT_16BITS(obj_tptr)>>8);
1755
1756 ND_PRINT((ndo, "%s Action: %s (%u), Label type: %u", ident,
1757 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1758 action, ((EXTRACT_32BITS(obj_tptr) & 0x7F))));
1759
1760 switch (action) {
1761 case LABEL_SET_INCLUSIVE_RANGE:
1762 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1763
1764 /* only a couple of subchannels are expected */
1765 if (obj_tlen < 12)
1766 return -1;
1767 ND_PRINT((ndo, "%s Start range: %u, End range: %u", ident,
1768 EXTRACT_32BITS(obj_tptr+4),
1769 EXTRACT_32BITS(obj_tptr + 8)));
1770 obj_tlen-=12;
1771 obj_tptr+=12;
1772 break;
1773
1774 default:
1775 obj_tlen-=4;
1776 obj_tptr+=4;
1777 subchannel = 1;
1778 while(obj_tlen >= 4 ) {
1779 ND_PRINT((ndo, "%s Subchannel #%u: %u", ident, subchannel,
1780 EXTRACT_32BITS(obj_tptr)));
1781 obj_tptr+=4;
1782 obj_tlen-=4;
1783 subchannel++;
1784 }
1785 break;
1786 }
1787 break;
1788 default:
1789 hexdump=TRUE;
1790 }
1791 break;
1792
1793 case RSVP_OBJ_S2L:
1794 switch (rsvp_obj_ctype) {
1795 case RSVP_CTYPE_IPV4:
1796 if (obj_tlen < 4)
1797 return-1;
1798 ND_PRINT((ndo, "%s Sub-LSP destination address: %s",
1799 ident, ipaddr_string(ndo, obj_tptr)));
1800
1801 obj_tlen-=4;
1802 obj_tptr+=4;
1803 break;
1804 case RSVP_CTYPE_IPV6:
1805 if (obj_tlen < 16)
1806 return-1;
1807 ND_PRINT((ndo, "%s Sub-LSP destination address: %s",
1808 ident, ip6addr_string(ndo, obj_tptr)));
1809
1810 obj_tlen-=16;
1811 obj_tptr+=16;
1812 break;
1813 default:
1814 hexdump=TRUE;
1815 }
1816 break;
1817
1818 /*
1819 * FIXME those are the defined objects that lack a decoder
1820 * you are welcome to contribute code ;-)
1821 */
1822
1823 case RSVP_OBJ_SCOPE:
1824 case RSVP_OBJ_POLICY_DATA:
1825 case RSVP_OBJ_ACCEPT_LABEL_SET:
1826 case RSVP_OBJ_PROTECTION:
1827 default:
1828 if (ndo->ndo_vflag <= 1)
1829 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1830 break;
1831 }
1832 /* do we also want to see a hex dump ? */
1833 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1834 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1835 rsvp_obj_len - sizeof(struct rsvp_object_header));
1836
1837 tptr+=rsvp_obj_len;
1838 tlen-=rsvp_obj_len;
1839 }
1840 return 0;
1841 invalid:
1842 ND_PRINT((ndo, "%s", istr));
1843 return -1;
1844 trunc:
1845 ND_PRINT((ndo, "\n\t\t"));
1846 ND_PRINT((ndo, "%s", tstr));
1847 return -1;
1848 }
1849
1850 void
1851 rsvp_print(netdissect_options *ndo,
1852 register const u_char *pptr, register u_int len)
1853 {
1854 const struct rsvp_common_header *rsvp_com_header;
1855 const u_char *tptr;
1856 u_short plen, tlen;
1857
1858 tptr=pptr;
1859
1860 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1861 ND_TCHECK(*rsvp_com_header);
1862
1863 /*
1864 * Sanity checking of the header.
1865 */
1866 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1867 ND_PRINT((ndo, "ERROR: RSVP version %u packet not supported",
1868 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags)));
1869 return;
1870 }
1871
1872 /* in non-verbose mode just lets print the basic Message Type*/
1873 if (ndo->ndo_vflag < 1) {
1874 ND_PRINT((ndo, "RSVPv%u %s Message, length: %u",
1875 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1876 tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
1877 len));
1878 return;
1879 }
1880
1881 /* ok they seem to want to know everything - lets fully decode it */
1882
1883 plen = tlen = EXTRACT_16BITS(rsvp_com_header->length);
1884
1885 ND_PRINT((ndo, "\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1886 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1887 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1888 rsvp_com_header->msg_type,
1889 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1890 tlen,
1891 rsvp_com_header->ttl,
1892 EXTRACT_16BITS(rsvp_com_header->checksum)));
1893
1894 if (tlen < sizeof(const struct rsvp_common_header)) {
1895 ND_PRINT((ndo, "ERROR: common header too short %u < %lu", tlen,
1896 (unsigned long)sizeof(const struct rsvp_common_header)));
1897 return;
1898 }
1899
1900 tptr+=sizeof(const struct rsvp_common_header);
1901 tlen-=sizeof(const struct rsvp_common_header);
1902
1903 switch(rsvp_com_header->msg_type) {
1904
1905 case RSVP_MSGTYPE_BUNDLE:
1906 /*
1907 * Process each submessage in the bundle message.
1908 * Bundle messages may not contain bundle submessages, so we don't
1909 * need to handle bundle submessages specially.
1910 */
1911 while(tlen > 0) {
1912 const u_char *subpptr=tptr, *subtptr;
1913 u_short subplen, subtlen;
1914
1915 subtptr=subpptr;
1916
1917 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1918 ND_TCHECK(*rsvp_com_header);
1919
1920 /*
1921 * Sanity checking of the header.
1922 */
1923 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1924 ND_PRINT((ndo, "ERROR: RSVP version %u packet not supported",
1925 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags)));
1926 return;
1927 }
1928
1929 subplen = subtlen = EXTRACT_16BITS(rsvp_com_header->length);
1930
1931 ND_PRINT((ndo, "\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1932 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1933 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1934 rsvp_com_header->msg_type,
1935 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1936 subtlen,
1937 rsvp_com_header->ttl,
1938 EXTRACT_16BITS(rsvp_com_header->checksum)));
1939
1940 if (subtlen < sizeof(const struct rsvp_common_header)) {
1941 ND_PRINT((ndo, "ERROR: common header too short %u < %lu", subtlen,
1942 (unsigned long)sizeof(const struct rsvp_common_header)));
1943 return;
1944 }
1945
1946 if (tlen < subtlen) {
1947 ND_PRINT((ndo, "ERROR: common header too large %u > %u", subtlen,
1948 tlen));
1949 return;
1950 }
1951
1952 subtptr+=sizeof(const struct rsvp_common_header);
1953 subtlen-=sizeof(const struct rsvp_common_header);
1954
1955 /*
1956 * Print all objects in the submessage.
1957 */
1958 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
1959 return;
1960
1961 tptr+=subtlen+sizeof(const struct rsvp_common_header);
1962 tlen-=subtlen+sizeof(const struct rsvp_common_header);
1963 }
1964
1965 break;
1966
1967 case RSVP_MSGTYPE_PATH:
1968 case RSVP_MSGTYPE_RESV:
1969 case RSVP_MSGTYPE_PATHERR:
1970 case RSVP_MSGTYPE_RESVERR:
1971 case RSVP_MSGTYPE_PATHTEAR:
1972 case RSVP_MSGTYPE_RESVTEAR:
1973 case RSVP_MSGTYPE_RESVCONF:
1974 case RSVP_MSGTYPE_HELLO_OLD:
1975 case RSVP_MSGTYPE_HELLO:
1976 case RSVP_MSGTYPE_ACK:
1977 case RSVP_MSGTYPE_SREFRESH:
1978 /*
1979 * Print all objects in the message.
1980 */
1981 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
1982 return;
1983 break;
1984
1985 default:
1986 print_unknown_data(ndo, tptr, "\n\t ", tlen);
1987 break;
1988 }
1989
1990 return;
1991 trunc:
1992 ND_PRINT((ndo, "\n\t\t"));
1993 ND_PRINT((ndo, "%s", tstr));
1994 }
[mirror] the TCPdump network dissector