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[tcpdump] / print-rsvp.c
1 /*
2 * Copyright (c) 1998-2007 The TCPDUMP project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that: (1) source code
6 * distributions retain the above copyright notice and this paragraph
7 * in its entirety, and (2) distributions including binary code include
8 * the above copyright notice and this paragraph in its entirety in
9 * the documentation or other materials provided with the distribution.
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
13 * FOR A PARTICULAR PURPOSE.
14 *
15 * Original code by Hannes Gredler (hannes@gredler.at)
16 */
17
18 /* \summary: Resource ReSerVation Protocol (RSVP) printer */
19
20 /* specification: RFC 2205 */
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include <netdissect-stdinc.h>
27
28 #include "netdissect.h"
29 #include "extract.h"
30 #include "addrtoname.h"
31 #include "ethertype.h"
32 #include "gmpls.h"
33 #include "af.h"
34 #include "signature.h"
35
36 static const char tstr[] = " [|rsvp]";
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 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
118 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
119 #define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
120 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
121 #define RSVP_OBJ_ERROR_SPEC 6
122 #define RSVP_OBJ_SCOPE 7
123 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
124 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
125 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
126 #define RSVP_OBJ_SENDER_TEMPLATE 11
127 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
128 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
129 #define RSVP_OBJ_POLICY_DATA 14
130 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
131 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
132 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
133 #define RSVP_OBJ_ERO 20 /* rfc3209 */
134 #define RSVP_OBJ_RRO 21 /* rfc3209 */
135 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
136 #define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */
137 #define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */
138 #define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */
139 #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
140 #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
141 #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
142 #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
143 #define RSVP_OBJ_S2L 50 /* rfc4875 */
144 #define RSVP_OBJ_DETOUR 63 /* rfc4090 */
145 #define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
146 #define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
147 #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
148 #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
149 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
150 #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
151 #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
152 #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
153 #define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */
154 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
155 #define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
156 #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
157 #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
158
159 static const struct tok rsvp_obj_values[] = {
160 { RSVP_OBJ_SESSION, "Session" },
161 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
162 { RSVP_OBJ_INTEGRITY, "Integrity" },
163 { RSVP_OBJ_TIME_VALUES, "Time Values" },
164 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
165 { RSVP_OBJ_SCOPE, "Scope" },
166 { RSVP_OBJ_STYLE, "Style" },
167 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
168 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
169 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
170 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
171 { RSVP_OBJ_ADSPEC, "Adspec" },
172 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
173 { RSVP_OBJ_CONFIRM, "Confirm" },
174 { RSVP_OBJ_LABEL, "Label" },
175 { RSVP_OBJ_LABEL_REQ, "Label Request" },
176 { RSVP_OBJ_ERO, "ERO" },
177 { RSVP_OBJ_RRO, "RRO" },
178 { RSVP_OBJ_HELLO, "Hello" },
179 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
180 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
181 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
182 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
183 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
184 { RSVP_OBJ_LABEL_SET, "Label Set" },
185 { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
186 { RSVP_OBJ_DETOUR, "Detour" },
187 { RSVP_OBJ_CLASSTYPE, "Class Type" },
188 { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" },
189 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
190 { RSVP_OBJ_PROPERTIES, "Properties" },
191 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
192 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
193 { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" },
194 { RSVP_OBJ_CALL_ID, "Call-ID" },
195 { RSVP_OBJ_CALL_OPS, "Call Capability" },
196 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
197 { RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
198 { RSVP_OBJ_PROTECTION, "Protection" },
199 { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
200 { RSVP_OBJ_S2L, "Sub-LSP to LSP" },
201 { 0, NULL}
202 };
203
204 #define RSVP_CTYPE_IPV4 1
205 #define RSVP_CTYPE_IPV6 2
206 #define RSVP_CTYPE_TUNNEL_IPV4 7
207 #define RSVP_CTYPE_TUNNEL_IPV6 8
208 #define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */
209 #define RSVP_CTYPE_1 1
210 #define RSVP_CTYPE_2 2
211 #define RSVP_CTYPE_3 3
212 #define RSVP_CTYPE_4 4
213 #define RSVP_CTYPE_12 12
214 #define RSVP_CTYPE_13 13
215 #define RSVP_CTYPE_14 14
216
217 /*
218 * the ctypes are not globally unique so for
219 * translating it to strings we build a table based
220 * on objects offsetted by the ctype
221 */
222
223 static const struct tok rsvp_ctype_values[] = {
224 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
225 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
226 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
227 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
228 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
229 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
230 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
231 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
232 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
233 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
234 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
235 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
236 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
237 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
238 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
239 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
240 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
241 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
242 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
243 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
244 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
245 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
246 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" },
247 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" },
248 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" },
249 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
250 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
251 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
252 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
253 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
254 { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
255 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" },
256 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" },
257 { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
258 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
259 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
260 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
261 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
262 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
263 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
264 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
265 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
266 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
267 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
268 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
269 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
270 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
271 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
272 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
273 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
274 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
275 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
276 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
277 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
278 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
279 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
280 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
281 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
282 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
283 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
284 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
285 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
286 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
287 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
288 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
289 { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" },
290 { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
291 { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" },
292 { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" },
293 { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" },
294 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" },
295 { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" },
296 { 0, NULL}
297 };
298
299 struct rsvp_obj_integrity_t {
300 uint8_t flags;
301 uint8_t res;
302 uint8_t key_id[6];
303 uint8_t sequence[8];
304 uint8_t digest[16];
305 };
306
307 static const struct tok rsvp_obj_integrity_flag_values[] = {
308 { 0x80, "Handshake" },
309 { 0, NULL}
310 };
311
312 struct rsvp_obj_frr_t {
313 uint8_t setup_prio;
314 uint8_t hold_prio;
315 uint8_t hop_limit;
316 uint8_t flags;
317 uint8_t bandwidth[4];
318 uint8_t include_any[4];
319 uint8_t exclude_any[4];
320 uint8_t include_all[4];
321 };
322
323
324 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
325 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
326
327 #define RSVP_OBJ_XRO_RES 0
328 #define RSVP_OBJ_XRO_IPV4 1
329 #define RSVP_OBJ_XRO_IPV6 2
330 #define RSVP_OBJ_XRO_LABEL 3
331 #define RSVP_OBJ_XRO_ASN 32
332 #define RSVP_OBJ_XRO_MPLS 64
333
334 static const struct tok rsvp_obj_xro_values[] = {
335 { RSVP_OBJ_XRO_RES, "Reserved" },
336 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
337 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
338 { RSVP_OBJ_XRO_LABEL, "Label" },
339 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
340 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
341 { 0, NULL}
342 };
343
344 /* RFC4090 */
345 static const struct tok rsvp_obj_rro_flag_values[] = {
346 { 0x01, "Local protection available" },
347 { 0x02, "Local protection in use" },
348 { 0x04, "Bandwidth protection" },
349 { 0x08, "Node protection" },
350 { 0, NULL}
351 };
352
353 /* RFC3209 */
354 static const struct tok rsvp_obj_rro_label_flag_values[] = {
355 { 0x01, "Global" },
356 { 0, NULL}
357 };
358
359 static const struct tok rsvp_resstyle_values[] = {
360 { 17, "Wildcard Filter" },
361 { 10, "Fixed Filter" },
362 { 18, "Shared Explicit" },
363 { 0, NULL}
364 };
365
366 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
367 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
368
369 static const struct tok rsvp_intserv_service_type_values[] = {
370 { 1, "Default/Global Information" },
371 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
372 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
373 { 0, NULL}
374 };
375
376 static const struct tok rsvp_intserv_parameter_id_values[] = {
377 { 4, "IS hop cnt" },
378 { 6, "Path b/w estimate" },
379 { 8, "Minimum path latency" },
380 { 10, "Composed MTU" },
381 { 127, "Token Bucket TSpec" },
382 { 130, "Guaranteed Service RSpec" },
383 { 133, "End-to-end composed value for C" },
384 { 134, "End-to-end composed value for D" },
385 { 135, "Since-last-reshaping point composed C" },
386 { 136, "Since-last-reshaping point composed D" },
387 { 0, NULL}
388 };
389
390 static const struct tok rsvp_session_attribute_flag_values[] = {
391 { 0x01, "Local Protection" },
392 { 0x02, "Label Recording" },
393 { 0x04, "SE Style" },
394 { 0x08, "Bandwidth protection" }, /* RFC4090 */
395 { 0x10, "Node protection" }, /* RFC4090 */
396 { 0, NULL}
397 };
398
399 static const struct tok rsvp_obj_prop_tlv_values[] = {
400 { 0x01, "Cos" },
401 { 0x02, "Metric 1" },
402 { 0x04, "Metric 2" },
403 { 0x08, "CCC Status" },
404 { 0x10, "Path Type" },
405 { 0, NULL}
406 };
407
408 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
409 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
410 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28
411 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125
412
413 static const struct tok rsvp_obj_error_code_values[] = {
414 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
415 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
416 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
417 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" },
418 { 0, NULL}
419 };
420
421 static const struct tok rsvp_obj_error_code_routing_values[] = {
422 { 1, "Bad EXPLICIT_ROUTE object" },
423 { 2, "Bad strict node" },
424 { 3, "Bad loose node" },
425 { 4, "Bad initial subobject" },
426 { 5, "No route available toward destination" },
427 { 6, "Unacceptable label value" },
428 { 7, "RRO indicated routing loops" },
429 { 8, "non-RSVP-capable router in the path" },
430 { 9, "MPLS label allocation failure" },
431 { 10, "Unsupported L3PID" },
432 { 0, NULL}
433 };
434
435 static const struct tok rsvp_obj_error_code_diffserv_te_values[] = {
436 { 1, "Unexpected CT object" },
437 { 2, "Unsupported CT" },
438 { 3, "Invalid CT value" },
439 { 4, "CT/setup priority do not form a configured TE-Class" },
440 { 5, "CT/holding priority do not form a configured TE-Class" },
441 { 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" },
442 { 7, "Inconsistency between signaled PSC and signaled CT" },
443 { 8, "Inconsistency between signaled PHBs and signaled CT" },
444 { 0, NULL}
445 };
446
447 /* rfc3473 / rfc 3471 */
448 static const struct tok rsvp_obj_admin_status_flag_values[] = {
449 { 0x80000000, "Reflect" },
450 { 0x00000004, "Testing" },
451 { 0x00000002, "Admin-down" },
452 { 0x00000001, "Delete-in-progress" },
453 { 0, NULL}
454 };
455
456 /* label set actions - rfc3471 */
457 #define LABEL_SET_INCLUSIVE_LIST 0
458 #define LABEL_SET_EXCLUSIVE_LIST 1
459 #define LABEL_SET_INCLUSIVE_RANGE 2
460 #define LABEL_SET_EXCLUSIVE_RANGE 3
461
462 static const struct tok rsvp_obj_label_set_action_values[] = {
463 { LABEL_SET_INCLUSIVE_LIST, "Inclusive list" },
464 { LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" },
465 { LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" },
466 { LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" },
467 { 0, NULL}
468 };
469
470 /* OIF RSVP extensions UNI 1.0 Signaling, release 2 */
471 #define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1
472 #define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2
473 #define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3
474 #define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4
475 #define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5
476
477 static const struct tok rsvp_obj_generalized_uni_values[] = {
478 { RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" },
479 { RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" },
480 { RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" },
481 { RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" },
482 { RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" },
483 { 0, NULL}
484 };
485
486 /*
487 * this is a dissector for all the intserv defined
488 * specs as defined per rfc2215
489 * it is called from various rsvp objects;
490 * returns the amount of bytes being processed
491 */
492 static u_int
493 rsvp_intserv_print(netdissect_options *ndo,
494 const u_char *tptr, u_short obj_tlen)
495 {
496 u_int parameter_id,parameter_length;
497 union {
498 float f;
499 uint32_t i;
500 } bw;
501
502 if (obj_tlen < 4)
503 return 0;
504 ND_TCHECK_1(tptr);
505 parameter_id = EXTRACT_U_1(tptr);
506 ND_TCHECK_2(tptr + 2);
507 parameter_length = EXTRACT_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
508
509 ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
510 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
511 parameter_id,
512 parameter_length,
513 EXTRACT_U_1(tptr + 1));
514
515 if (obj_tlen < parameter_length+4)
516 return 0;
517 switch(parameter_id) { /* parameter_id */
518
519 case 4:
520 /*
521 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
522 * | 4 (e) | (f) | 1 (g) |
523 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
524 * | IS hop cnt (32-bit unsigned integer) |
525 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
526 */
527 if (parameter_length == 4) {
528 ND_TCHECK_4(tptr + 4);
529 ND_PRINT("\n\t\tIS hop count: %u", EXTRACT_BE_U_4(tptr + 4));
530 }
531 break;
532
533 case 6:
534 /*
535 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
536 * | 6 (h) | (i) | 1 (j) |
537 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
538 * | Path b/w estimate (32-bit IEEE floating point number) |
539 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
540 */
541 if (parameter_length == 4) {
542 ND_TCHECK_4(tptr + 4);
543 bw.i = EXTRACT_BE_U_4(tptr + 4);
544 ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000);
545 }
546 break;
547
548 case 8:
549 /*
550 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
551 * | 8 (k) | (l) | 1 (m) |
552 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
553 * | Minimum path latency (32-bit integer) |
554 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
555 */
556 if (parameter_length == 4) {
557 ND_TCHECK_4(tptr + 4);
558 ND_PRINT("\n\t\tMinimum path latency: ");
559 if (EXTRACT_BE_U_4(tptr + 4) == 0xffffffff)
560 ND_PRINT("don't care");
561 else
562 ND_PRINT("%u", EXTRACT_BE_U_4(tptr + 4));
563 }
564 break;
565
566 case 10:
567
568 /*
569 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
570 * | 10 (n) | (o) | 1 (p) |
571 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
572 * | Composed MTU (32-bit unsigned integer) |
573 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
574 */
575 if (parameter_length == 4) {
576 ND_TCHECK_4(tptr + 4);
577 ND_PRINT("\n\t\tComposed MTU: %u bytes", EXTRACT_BE_U_4(tptr + 4));
578 }
579 break;
580 case 127:
581 /*
582 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
583 * | 127 (e) | 0 (f) | 5 (g) |
584 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
585 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
586 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
587 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
588 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
589 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
590 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
591 * | Minimum Policed Unit [m] (32-bit integer) |
592 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
593 * | Maximum Packet Size [M] (32-bit integer) |
594 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
595 */
596
597 if (parameter_length == 20) {
598 ND_TCHECK_LEN(tptr + 4, 20);
599 bw.i = EXTRACT_BE_U_4(tptr + 4);
600 ND_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000);
601 bw.i = EXTRACT_BE_U_4(tptr + 8);
602 ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
603 bw.i = EXTRACT_BE_U_4(tptr + 12);
604 ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000);
605 ND_PRINT("\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_BE_U_4(tptr + 16));
606 ND_PRINT("\n\t\tMaximum Packet Size: %u bytes", EXTRACT_BE_U_4(tptr + 20));
607 }
608 break;
609
610 case 130:
611 /*
612 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
613 * | 130 (h) | 0 (i) | 2 (j) |
614 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
615 * | Rate [R] (32-bit IEEE floating point number) |
616 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
617 * | Slack Term [S] (32-bit integer) |
618 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
619 */
620
621 if (parameter_length == 8) {
622 ND_TCHECK_8(tptr + 4);
623 bw.i = EXTRACT_BE_U_4(tptr + 4);
624 ND_PRINT("\n\t\tRate: %.10g Mbps", bw.f / 125000);
625 ND_PRINT("\n\t\tSlack Term: %u", EXTRACT_BE_U_4(tptr + 8));
626 }
627 break;
628
629 case 133:
630 case 134:
631 case 135:
632 case 136:
633 if (parameter_length == 4) {
634 ND_TCHECK_4(tptr + 4);
635 ND_PRINT("\n\t\tValue: %u", EXTRACT_BE_U_4(tptr + 4));
636 }
637 break;
638
639 default:
640 if (ndo->ndo_vflag <= 1)
641 print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
642 }
643 return (parameter_length+4); /* header length 4 bytes */
644
645 trunc:
646 ND_PRINT("%s", tstr);
647 return 0;
648 }
649
650 /*
651 * Clear checksum prior to signature verification.
652 */
653 static void
654 rsvp_clear_checksum(void *header)
655 {
656 struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
657
658 rsvp_com_header->checksum[0] = 0;
659 rsvp_com_header->checksum[1] = 0;
660 }
661
662 static int
663 rsvp_obj_print(netdissect_options *ndo,
664 const u_char *pptr, u_int plen, const u_char *tptr,
665 const char *indent, u_int tlen,
666 const struct rsvp_common_header *rsvp_com_header)
667 {
668 const struct rsvp_object_header *rsvp_obj_header;
669 const u_char *obj_tptr;
670 union {
671 const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
672 const struct rsvp_obj_frr_t *rsvp_obj_frr;
673 } obj_ptr;
674
675 u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num,obj_tlen;
676 u_int intserv_serv_tlen;
677 int hexdump;
678 u_int processed,padbytes,error_code,error_value,i,sigcheck;
679 union {
680 float f;
681 uint32_t i;
682 } bw;
683 uint8_t namelen;
684
685 u_int action, subchannel;
686
687 while(tlen>=sizeof(struct rsvp_object_header)) {
688 /* did we capture enough for fully decoding the object header ? */
689 ND_TCHECK_LEN(tptr, sizeof(struct rsvp_object_header));
690
691 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
692 rsvp_obj_len=EXTRACT_BE_U_2(rsvp_obj_header->length);
693 rsvp_obj_ctype=EXTRACT_U_1(rsvp_obj_header->ctype);
694
695 if(rsvp_obj_len % 4) {
696 ND_PRINT("%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len);
697 return -1;
698 }
699 if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
700 ND_PRINT("%sERROR: object header too short %u < %lu", indent, rsvp_obj_len,
701 (unsigned long)sizeof(struct rsvp_object_header));
702 return -1;
703 }
704
705 rsvp_obj_class_num = EXTRACT_U_1(rsvp_obj_header->class_num);
706 ND_PRINT("%s%s Object (%u) Flags: [%s",
707 indent,
708 tok2str(rsvp_obj_values,
709 "Unknown",
710 rsvp_obj_class_num),
711 rsvp_obj_class_num,
712 (rsvp_obj_class_num & 0x80) ?
713 ((rsvp_obj_class_num & 0x40) ? "ignore and forward" :
714 "ignore silently") :
715 "reject");
716
717 ND_PRINT(" if unknown], Class-Type: %s (%u), length: %u",
718 tok2str(rsvp_ctype_values,
719 "Unknown",
720 (rsvp_obj_class_num<<8)+rsvp_obj_ctype),
721 rsvp_obj_ctype,
722 rsvp_obj_len);
723
724 if(tlen < rsvp_obj_len) {
725 ND_PRINT("%sERROR: object goes past end of objects TLV", indent);
726 return -1;
727 }
728
729 obj_tptr=tptr+sizeof(struct rsvp_object_header);
730 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
731
732 /* did we capture enough for fully decoding the object ? */
733 if (!ND_TTEST_LEN(tptr, rsvp_obj_len))
734 return -1;
735 hexdump=FALSE;
736
737 switch(rsvp_obj_class_num) {
738 case RSVP_OBJ_SESSION:
739 switch(rsvp_obj_ctype) {
740 case RSVP_CTYPE_IPV4:
741 if (obj_tlen < 8)
742 return -1;
743 ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
744 indent,
745 ipaddr_string(ndo, obj_tptr),
746 EXTRACT_U_1(obj_tptr + sizeof(struct in_addr)));
747 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
748 indent,
749 EXTRACT_U_1((obj_tptr + 5)),
750 EXTRACT_BE_U_2(obj_tptr + 6));
751 obj_tlen-=8;
752 obj_tptr+=8;
753 break;
754 case RSVP_CTYPE_IPV6:
755 if (obj_tlen < 20)
756 return -1;
757 ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
758 indent,
759 ip6addr_string(ndo, obj_tptr),
760 EXTRACT_U_1(obj_tptr + sizeof(struct in6_addr)));
761 ND_PRINT("%s Flags: [0x%02x], DestPort %u",
762 indent,
763 EXTRACT_U_1((obj_tptr + sizeof(struct in6_addr) + 1)),
764 EXTRACT_BE_U_2(obj_tptr + sizeof(struct in6_addr) + 2));
765 obj_tlen-=20;
766 obj_tptr+=20;
767 break;
768
769 case RSVP_CTYPE_TUNNEL_IPV6:
770 if (obj_tlen < 36)
771 return -1;
772 ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
773 indent,
774 ip6addr_string(ndo, obj_tptr),
775 EXTRACT_BE_U_2(obj_tptr + 18),
776 ip6addr_string(ndo, obj_tptr + 20));
777 obj_tlen-=36;
778 obj_tptr+=36;
779 break;
780
781 case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
782 if (obj_tlen < 26)
783 return -1;
784 ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
785 indent,
786 EXTRACT_BE_U_4(obj_tptr),
787 EXTRACT_BE_U_2(obj_tptr + 6),
788 ip6addr_string(ndo, obj_tptr + 8));
789 obj_tlen-=26;
790 obj_tptr+=26;
791 break;
792 case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
793 if (obj_tlen < 12)
794 return -1;
795 ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
796 indent,
797 ipaddr_string(ndo, obj_tptr),
798 EXTRACT_BE_U_2(obj_tptr + 6),
799 ipaddr_string(ndo, obj_tptr + 8));
800 obj_tlen-=12;
801 obj_tptr+=12;
802 break;
803 case RSVP_CTYPE_TUNNEL_IPV4:
804 case RSVP_CTYPE_UNI_IPV4:
805 if (obj_tlen < 12)
806 return -1;
807 ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
808 indent,
809 ipaddr_string(ndo, obj_tptr),
810 EXTRACT_BE_U_2(obj_tptr + 6),
811 ipaddr_string(ndo, obj_tptr + 8));
812 obj_tlen-=12;
813 obj_tptr+=12;
814 break;
815 default:
816 hexdump=TRUE;
817 }
818 break;
819
820 case RSVP_OBJ_CONFIRM:
821 switch(rsvp_obj_ctype) {
822 case RSVP_CTYPE_IPV4:
823 if (obj_tlen < sizeof(struct in_addr))
824 return -1;
825 ND_PRINT("%s IPv4 Receiver Address: %s",
826 indent,
827 ipaddr_string(ndo, obj_tptr));
828 obj_tlen-=sizeof(struct in_addr);
829 obj_tptr+=sizeof(struct in_addr);
830 break;
831 case RSVP_CTYPE_IPV6:
832 if (obj_tlen < sizeof(struct in6_addr))
833 return -1;
834 ND_PRINT("%s IPv6 Receiver Address: %s",
835 indent,
836 ip6addr_string(ndo, obj_tptr));
837 obj_tlen-=sizeof(struct in6_addr);
838 obj_tptr+=sizeof(struct in6_addr);
839 break;
840 default:
841 hexdump=TRUE;
842 }
843 break;
844
845 case RSVP_OBJ_NOTIFY_REQ:
846 switch(rsvp_obj_ctype) {
847 case RSVP_CTYPE_IPV4:
848 if (obj_tlen < sizeof(struct in_addr))
849 return -1;
850 ND_PRINT("%s IPv4 Notify Node Address: %s",
851 indent,
852 ipaddr_string(ndo, obj_tptr));
853 obj_tlen-=sizeof(struct in_addr);
854 obj_tptr+=sizeof(struct in_addr);
855 break;
856 case RSVP_CTYPE_IPV6:
857 if (obj_tlen < sizeof(struct in6_addr))
858 return-1;
859 ND_PRINT("%s IPv6 Notify Node Address: %s",
860 indent,
861 ip6addr_string(ndo, obj_tptr));
862 obj_tlen-=sizeof(struct in6_addr);
863 obj_tptr+=sizeof(struct in6_addr);
864 break;
865 default:
866 hexdump=TRUE;
867 }
868 break;
869
870 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
871 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
872 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
873 case RSVP_OBJ_LABEL:
874 switch(rsvp_obj_ctype) {
875 case RSVP_CTYPE_1:
876 while(obj_tlen >= 4 ) {
877 ND_PRINT("%s Label: %u", indent, EXTRACT_BE_U_4(obj_tptr));
878 obj_tlen-=4;
879 obj_tptr+=4;
880 }
881 break;
882 case RSVP_CTYPE_2:
883 if (obj_tlen < 4)
884 return-1;
885 ND_PRINT("%s Generalized Label: %u",
886 indent,
887 EXTRACT_BE_U_4(obj_tptr));
888 obj_tlen-=4;
889 obj_tptr+=4;
890 break;
891 case RSVP_CTYPE_3:
892 if (obj_tlen < 12)
893 return-1;
894 ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
895 indent,
896 EXTRACT_BE_U_4(obj_tptr),
897 indent,
898 EXTRACT_BE_U_4(obj_tptr + 4),
899 EXTRACT_BE_U_4(obj_tptr + 8));
900 obj_tlen-=12;
901 obj_tptr+=12;
902 break;
903 default:
904 hexdump=TRUE;
905 }
906 break;
907
908 case RSVP_OBJ_STYLE:
909 switch(rsvp_obj_ctype) {
910 case RSVP_CTYPE_1:
911 if (obj_tlen < 4)
912 return-1;
913 ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]",
914 indent,
915 tok2str(rsvp_resstyle_values,
916 "Unknown",
917 EXTRACT_BE_U_3(obj_tptr + 1)),
918 EXTRACT_U_1(obj_tptr));
919 obj_tlen-=4;
920 obj_tptr+=4;
921 break;
922 default:
923 hexdump=TRUE;
924 }
925 break;
926
927 case RSVP_OBJ_SENDER_TEMPLATE:
928 switch(rsvp_obj_ctype) {
929 case RSVP_CTYPE_IPV4:
930 if (obj_tlen < 8)
931 return-1;
932 ND_PRINT("%s Source Address: %s, Source Port: %u",
933 indent,
934 ipaddr_string(ndo, obj_tptr),
935 EXTRACT_BE_U_2(obj_tptr + 6));
936 obj_tlen-=8;
937 obj_tptr+=8;
938 break;
939 case RSVP_CTYPE_IPV6:
940 if (obj_tlen < 20)
941 return-1;
942 ND_PRINT("%s Source Address: %s, Source Port: %u",
943 indent,
944 ip6addr_string(ndo, obj_tptr),
945 EXTRACT_BE_U_2(obj_tptr + 18));
946 obj_tlen-=20;
947 obj_tptr+=20;
948 break;
949 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
950 if (obj_tlen < 40)
951 return-1;
952 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
953 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
954 indent,
955 ip6addr_string(ndo, obj_tptr),
956 EXTRACT_BE_U_2(obj_tptr + 18),
957 indent,
958 ip6addr_string(ndo, obj_tptr+20),
959 EXTRACT_BE_U_2(obj_tptr + 38));
960 obj_tlen-=40;
961 obj_tptr+=40;
962 break;
963 case RSVP_CTYPE_TUNNEL_IPV4:
964 if (obj_tlen < 8)
965 return-1;
966 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
967 indent,
968 ipaddr_string(ndo, obj_tptr),
969 EXTRACT_BE_U_2(obj_tptr + 6));
970 obj_tlen-=8;
971 obj_tptr+=8;
972 break;
973 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
974 if (obj_tlen < 16)
975 return-1;
976 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
977 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
978 indent,
979 ipaddr_string(ndo, obj_tptr),
980 EXTRACT_BE_U_2(obj_tptr + 6),
981 indent,
982 ipaddr_string(ndo, obj_tptr+8),
983 EXTRACT_BE_U_2(obj_tptr + 12));
984 obj_tlen-=16;
985 obj_tptr+=16;
986 break;
987 default:
988 hexdump=TRUE;
989 }
990 break;
991
992 case RSVP_OBJ_LABEL_REQ:
993 switch(rsvp_obj_ctype) {
994 case RSVP_CTYPE_1:
995 while(obj_tlen >= 4 ) {
996 ND_PRINT("%s L3 Protocol ID: %s",
997 indent,
998 tok2str(ethertype_values,
999 "Unknown Protocol (0x%04x)",
1000 EXTRACT_BE_U_2(obj_tptr + 2)));
1001 obj_tlen-=4;
1002 obj_tptr+=4;
1003 }
1004 break;
1005 case RSVP_CTYPE_2:
1006 if (obj_tlen < 12)
1007 return-1;
1008 ND_PRINT("%s L3 Protocol ID: %s",
1009 indent,
1010 tok2str(ethertype_values,
1011 "Unknown Protocol (0x%04x)",
1012 EXTRACT_BE_U_2(obj_tptr + 2)));
1013 ND_PRINT(",%s merge capability",((EXTRACT_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" );
1014 ND_PRINT("%s Minimum VPI/VCI: %u/%u",
1015 indent,
1016 (EXTRACT_BE_U_2(obj_tptr + 4))&0xfff,
1017 (EXTRACT_BE_U_2(obj_tptr + 6)) & 0xfff);
1018 ND_PRINT("%s Maximum VPI/VCI: %u/%u",
1019 indent,
1020 (EXTRACT_BE_U_2(obj_tptr + 8))&0xfff,
1021 (EXTRACT_BE_U_2(obj_tptr + 10)) & 0xfff);
1022 obj_tlen-=12;
1023 obj_tptr+=12;
1024 break;
1025 case RSVP_CTYPE_3:
1026 if (obj_tlen < 12)
1027 return-1;
1028 ND_PRINT("%s L3 Protocol ID: %s",
1029 indent,
1030 tok2str(ethertype_values,
1031 "Unknown Protocol (0x%04x)",
1032 EXTRACT_BE_U_2(obj_tptr + 2)));
1033 ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
1034 indent,
1035 (EXTRACT_BE_U_4(obj_tptr + 4))&0x7fffff,
1036 (EXTRACT_BE_U_4(obj_tptr + 8))&0x7fffff,
1037 (((EXTRACT_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
1038 (((EXTRACT_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : "");
1039 obj_tlen-=12;
1040 obj_tptr+=12;
1041 break;
1042 case RSVP_CTYPE_4:
1043 if (obj_tlen < 4)
1044 return-1;
1045 ND_PRINT("%s LSP Encoding Type: %s (%u)",
1046 indent,
1047 tok2str(gmpls_encoding_values,
1048 "Unknown",
1049 EXTRACT_U_1(obj_tptr)),
1050 EXTRACT_U_1(obj_tptr));
1051 ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
1052 indent,
1053 tok2str(gmpls_switch_cap_values,
1054 "Unknown",
1055 EXTRACT_U_1((obj_tptr + 1))),
1056 EXTRACT_U_1(obj_tptr + 1),
1057 tok2str(gmpls_payload_values,
1058 "Unknown",
1059 EXTRACT_BE_U_2(obj_tptr + 2)),
1060 EXTRACT_BE_U_2(obj_tptr + 2));
1061 obj_tlen-=4;
1062 obj_tptr+=4;
1063 break;
1064 default:
1065 hexdump=TRUE;
1066 }
1067 break;
1068
1069 case RSVP_OBJ_RRO:
1070 case RSVP_OBJ_ERO:
1071 switch(rsvp_obj_ctype) {
1072 case RSVP_CTYPE_IPV4:
1073 while(obj_tlen >= 4 ) {
1074 u_char length;
1075
1076 ND_TCHECK_4(obj_tptr);
1077 length = EXTRACT_U_1(obj_tptr + 1);
1078 ND_PRINT("%s Subobject Type: %s, length %u",
1079 indent,
1080 tok2str(rsvp_obj_xro_values,
1081 "Unknown %u",
1082 RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))),
1083 length);
1084 if (obj_tlen < length) {
1085 ND_PRINT("%s ERROR: ERO subobject length > object length", indent);
1086 break;
1087 };
1088
1089 if (length == 0) { /* prevent infinite loops */
1090 ND_PRINT("%s ERROR: zero length ERO subtype", indent);
1091 break;
1092 }
1093
1094 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(EXTRACT_U_1(obj_tptr))) {
1095 u_char prefix_length;
1096
1097 case RSVP_OBJ_XRO_IPV4:
1098 if (length != 8) {
1099 ND_PRINT(" ERROR: length != 8");
1100 goto invalid;
1101 }
1102 ND_TCHECK_8(obj_tptr);
1103 prefix_length = EXTRACT_U_1(obj_tptr + 6);
1104 if (prefix_length != 32) {
1105 ND_PRINT(" ERROR: Prefix length %u != 32",
1106 prefix_length);
1107 goto invalid;
1108 }
1109 ND_PRINT(", %s, %s/%u, Flags: [%s]",
1110 RSVP_OBJ_XRO_MASK_LOOSE(EXTRACT_U_1(obj_tptr)) ? "Loose" : "Strict",
1111 ipaddr_string(ndo, obj_tptr+2),
1112 EXTRACT_U_1((obj_tptr + 6)),
1113 bittok2str(rsvp_obj_rro_flag_values,
1114 "none",
1115 EXTRACT_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */
1116 break;
1117 case RSVP_OBJ_XRO_LABEL:
1118 if (length != 8) {
1119 ND_PRINT(" ERROR: length != 8");
1120 goto invalid;
1121 }
1122 ND_TCHECK_8(obj_tptr);
1123 ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
1124 bittok2str(rsvp_obj_rro_label_flag_values,
1125 "none",
1126 EXTRACT_U_1((obj_tptr + 2))),
1127 EXTRACT_U_1(obj_tptr + 2),
1128 tok2str(rsvp_ctype_values,
1129 "Unknown",
1130 EXTRACT_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
1131 EXTRACT_U_1((obj_tptr + 3)),
1132 EXTRACT_BE_U_4(obj_tptr + 4));
1133 }
1134 obj_tlen-=length;
1135 obj_tptr+=length;
1136 }
1137 break;
1138 default:
1139 hexdump=TRUE;
1140 }
1141 break;
1142
1143 case RSVP_OBJ_HELLO:
1144 switch(rsvp_obj_ctype) {
1145 case RSVP_CTYPE_1:
1146 case RSVP_CTYPE_2:
1147 if (obj_tlen < 8)
1148 return-1;
1149 ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
1150 indent,
1151 EXTRACT_BE_U_4(obj_tptr),
1152 EXTRACT_BE_U_4(obj_tptr + 4));
1153 obj_tlen-=8;
1154 obj_tptr+=8;
1155 break;
1156 default:
1157 hexdump=TRUE;
1158 }
1159 break;
1160
1161 case RSVP_OBJ_RESTART_CAPABILITY:
1162 switch(rsvp_obj_ctype) {
1163 case RSVP_CTYPE_1:
1164 if (obj_tlen < 8)
1165 return-1;
1166 ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums",
1167 indent,
1168 EXTRACT_BE_U_4(obj_tptr),
1169 EXTRACT_BE_U_4(obj_tptr + 4));
1170 obj_tlen-=8;
1171 obj_tptr+=8;
1172 break;
1173 default:
1174 hexdump=TRUE;
1175 }
1176 break;
1177
1178 case RSVP_OBJ_SESSION_ATTRIBUTE:
1179 switch(rsvp_obj_ctype) {
1180 case RSVP_CTYPE_TUNNEL_IPV4:
1181 if (obj_tlen < 4)
1182 return-1;
1183 namelen = EXTRACT_U_1(obj_tptr + 3);
1184 if (obj_tlen < 4+namelen)
1185 return-1;
1186 ND_PRINT("%s Session Name: ", indent);
1187 for (i = 0; i < namelen; i++)
1188 safeputchar(ndo, EXTRACT_U_1(obj_tptr + 4 + i));
1189 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
1190 indent,
1191 EXTRACT_U_1(obj_tptr),
1192 EXTRACT_U_1(obj_tptr + 1),
1193 bittok2str(rsvp_session_attribute_flag_values,
1194 "none",
1195 EXTRACT_U_1((obj_tptr + 2))),
1196 EXTRACT_U_1(obj_tptr + 2));
1197 obj_tlen-=4+namelen;
1198 obj_tptr+=4+namelen;
1199 break;
1200 default:
1201 hexdump=TRUE;
1202 }
1203 break;
1204
1205 case RSVP_OBJ_GENERALIZED_UNI:
1206 switch(rsvp_obj_ctype) {
1207 u_int subobj_type,af,subobj_len,total_subobj_len;
1208
1209 case RSVP_CTYPE_1:
1210
1211 if (obj_tlen < 4)
1212 return-1;
1213
1214 /* read variable length subobjects */
1215 total_subobj_len = obj_tlen;
1216 while(total_subobj_len > 0) {
1217 /* If RFC 3476 Section 3.1 defined that a sub-object of the
1218 * GENERALIZED_UNI RSVP object must have the Length field as
1219 * a multiple of 4, instead of the check below it would be
1220 * better to test total_subobj_len only once before the loop.
1221 * So long as it does not define it and this while loop does
1222 * not implement such a requirement, let's accept that within
1223 * each iteration subobj_len may happen to be a multiple of 1
1224 * and test it and total_subobj_len respectively.
1225 */
1226 if (total_subobj_len < 4)
1227 goto invalid;
1228 subobj_len = EXTRACT_BE_U_2(obj_tptr);
1229 subobj_type = (EXTRACT_BE_U_2(obj_tptr + 2))>>8;
1230 af = (EXTRACT_BE_U_2(obj_tptr + 2))&0x00FF;
1231
1232 ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
1233 indent,
1234 tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
1235 subobj_type,
1236 tok2str(af_values, "Unknown", af), af,
1237 subobj_len);
1238
1239 /* In addition to what is explained above, the same spec does not
1240 * explicitly say that the same Length field includes the 4-octet
1241 * sub-object header, but as long as this while loop implements it
1242 * as it does include, let's keep the check below consistent with
1243 * the rest of the code.
1244 *
1245 * XXX - RFC 3476 Section 3.1 says "The contents of these
1246 * sub-objects are described in [8]", where [8] is
1247 * UNI 1.0 Signaling Specification, The Optical
1248 * Internetworking Forum. The URL they give for that
1249 * document is
1250 *
1251 * http://www.oiforum.com/public/UNI_1.0_ia.html
1252 *
1253 * but that doesn't work; the new URL appears to be
1254 *
1255 * http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf
1256 *
1257 * and *that* document, in section 12.5.2.3
1258 * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))",
1259 * says nothing about the length field in general, but
1260 * some of the examples it gives in subsections have
1261 * length field values that clearly includes the length
1262 * of the sub-object header as well as the length of the
1263 * value.
1264 */
1265 if(subobj_len < 4 || subobj_len > total_subobj_len ||
1266 obj_tlen < subobj_len)
1267 goto invalid;
1268
1269 switch(subobj_type) {
1270 case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
1271 case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
1272
1273 switch(af) {
1274 case AFNUM_INET:
1275 if (subobj_len < 8)
1276 return -1;
1277 ND_PRINT("%s UNI IPv4 TNA address: %s",
1278 indent, ipaddr_string(ndo, obj_tptr + 4));
1279 break;
1280 case AFNUM_INET6:
1281 if (subobj_len < 20)
1282 return -1;
1283 ND_PRINT("%s UNI IPv6 TNA address: %s",
1284 indent, ip6addr_string(ndo, obj_tptr + 4));
1285 break;
1286 case AFNUM_NSAP:
1287 if (subobj_len) {
1288 /* unless we have a TLV parser lets just hexdump */
1289 hexdump=TRUE;
1290 }
1291 break;
1292 }
1293 break;
1294
1295 case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
1296 if (subobj_len > 4) {
1297 /* unless we have a TLV parser lets just hexdump */
1298 hexdump=TRUE;
1299 }
1300 break;
1301
1302 case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
1303 if (subobj_len < 16) {
1304 return -1;
1305 }
1306
1307 ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
1308 indent,
1309 ((EXTRACT_BE_U_4(obj_tptr + 4))>>31),
1310 ((EXTRACT_BE_U_4(obj_tptr + 4))&0xFF),
1311 EXTRACT_BE_U_4(obj_tptr + 8),
1312 EXTRACT_BE_U_4(obj_tptr + 12));
1313 break;
1314
1315 case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
1316 if (subobj_len < 8) {
1317 return -1;
1318 }
1319
1320 ND_PRINT("%s Service level: %u",
1321 indent, (EXTRACT_BE_U_4(obj_tptr + 4)) >> 24);
1322 break;
1323
1324 default:
1325 hexdump=TRUE;
1326 break;
1327 }
1328 total_subobj_len-=subobj_len;
1329 obj_tptr+=subobj_len;
1330 obj_tlen+=subobj_len;
1331 }
1332 break;
1333
1334 default:
1335 hexdump=TRUE;
1336 }
1337 break;
1338
1339 case RSVP_OBJ_RSVP_HOP:
1340 switch(rsvp_obj_ctype) {
1341 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1342 case RSVP_CTYPE_IPV4:
1343 if (obj_tlen < 8)
1344 return-1;
1345 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1346 indent,
1347 ipaddr_string(ndo, obj_tptr),
1348 EXTRACT_BE_U_4(obj_tptr + 4));
1349 obj_tlen-=8;
1350 obj_tptr+=8;
1351 if (obj_tlen)
1352 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1353 break;
1354 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1355 case RSVP_CTYPE_IPV6:
1356 if (obj_tlen < 20)
1357 return-1;
1358 ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
1359 indent,
1360 ip6addr_string(ndo, obj_tptr),
1361 EXTRACT_BE_U_4(obj_tptr + 16));
1362 obj_tlen-=20;
1363 obj_tptr+=20;
1364 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1365 break;
1366 default:
1367 hexdump=TRUE;
1368 }
1369 break;
1370
1371 case RSVP_OBJ_TIME_VALUES:
1372 switch(rsvp_obj_ctype) {
1373 case RSVP_CTYPE_1:
1374 if (obj_tlen < 4)
1375 return-1;
1376 ND_PRINT("%s Refresh Period: %ums",
1377 indent,
1378 EXTRACT_BE_U_4(obj_tptr));
1379 obj_tlen-=4;
1380 obj_tptr+=4;
1381 break;
1382 default:
1383 hexdump=TRUE;
1384 }
1385 break;
1386
1387 /* those three objects do share the same semantics */
1388 case RSVP_OBJ_SENDER_TSPEC:
1389 case RSVP_OBJ_ADSPEC:
1390 case RSVP_OBJ_FLOWSPEC:
1391 switch(rsvp_obj_ctype) {
1392 case RSVP_CTYPE_2:
1393 if (obj_tlen < 4)
1394 return-1;
1395 ND_PRINT("%s Msg-Version: %u, length: %u",
1396 indent,
1397 (EXTRACT_U_1(obj_tptr) & 0xf0) >> 4,
1398 EXTRACT_BE_U_2(obj_tptr + 2) << 2);
1399 obj_tptr+=4; /* get to the start of the service header */
1400 obj_tlen-=4;
1401
1402 while (obj_tlen >= 4) {
1403 intserv_serv_tlen=EXTRACT_BE_U_2(obj_tptr + 2)<<2;
1404 ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u",
1405 indent,
1406 tok2str(rsvp_intserv_service_type_values,"unknown",EXTRACT_U_1((obj_tptr))),
1407 EXTRACT_U_1(obj_tptr),
1408 (EXTRACT_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
1409 intserv_serv_tlen);
1410
1411 obj_tptr+=4; /* get to the start of the parameter list */
1412 obj_tlen-=4;
1413
1414 while (intserv_serv_tlen>=4) {
1415 processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
1416 if (processed == 0)
1417 break;
1418 obj_tlen-=processed;
1419 intserv_serv_tlen-=processed;
1420 obj_tptr+=processed;
1421 }
1422 }
1423 break;
1424 default:
1425 hexdump=TRUE;
1426 }
1427 break;
1428
1429 case RSVP_OBJ_FILTERSPEC:
1430 switch(rsvp_obj_ctype) {
1431 case RSVP_CTYPE_IPV4:
1432 if (obj_tlen < 8)
1433 return-1;
1434 ND_PRINT("%s Source Address: %s, Source Port: %u",
1435 indent,
1436 ipaddr_string(ndo, obj_tptr),
1437 EXTRACT_BE_U_2(obj_tptr + 6));
1438 obj_tlen-=8;
1439 obj_tptr+=8;
1440 break;
1441 case RSVP_CTYPE_IPV6:
1442 if (obj_tlen < 20)
1443 return-1;
1444 ND_PRINT("%s Source Address: %s, Source Port: %u",
1445 indent,
1446 ip6addr_string(ndo, obj_tptr),
1447 EXTRACT_BE_U_2(obj_tptr + 18));
1448 obj_tlen-=20;
1449 obj_tptr+=20;
1450 break;
1451 case RSVP_CTYPE_3:
1452 if (obj_tlen < 20)
1453 return-1;
1454 ND_PRINT("%s Source Address: %s, Flow Label: %u",
1455 indent,
1456 ip6addr_string(ndo, obj_tptr),
1457 EXTRACT_BE_U_3(obj_tptr + 17));
1458 obj_tlen-=20;
1459 obj_tptr+=20;
1460 break;
1461 case RSVP_CTYPE_TUNNEL_IPV6:
1462 if (obj_tlen < 20)
1463 return-1;
1464 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1465 indent,
1466 ipaddr_string(ndo, obj_tptr),
1467 EXTRACT_BE_U_2(obj_tptr + 18));
1468 obj_tlen-=20;
1469 obj_tptr+=20;
1470 break;
1471 case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
1472 if (obj_tlen < 40)
1473 return-1;
1474 ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1475 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1476 indent,
1477 ip6addr_string(ndo, obj_tptr),
1478 EXTRACT_BE_U_2(obj_tptr + 18),
1479 indent,
1480 ip6addr_string(ndo, obj_tptr+20),
1481 EXTRACT_BE_U_2(obj_tptr + 38));
1482 obj_tlen-=40;
1483 obj_tptr+=40;
1484 break;
1485 case RSVP_CTYPE_TUNNEL_IPV4:
1486 if (obj_tlen < 8)
1487 return-1;
1488 ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
1489 indent,
1490 ipaddr_string(ndo, obj_tptr),
1491 EXTRACT_BE_U_2(obj_tptr + 6));
1492 obj_tlen-=8;
1493 obj_tptr+=8;
1494 break;
1495 case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
1496 if (obj_tlen < 16)
1497 return-1;
1498 ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
1499 "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
1500 indent,
1501 ipaddr_string(ndo, obj_tptr),
1502 EXTRACT_BE_U_2(obj_tptr + 6),
1503 indent,
1504 ipaddr_string(ndo, obj_tptr+8),
1505 EXTRACT_BE_U_2(obj_tptr + 12));
1506 obj_tlen-=16;
1507 obj_tptr+=16;
1508 break;
1509 default:
1510 hexdump=TRUE;
1511 }
1512 break;
1513
1514 case RSVP_OBJ_FASTREROUTE:
1515 /* the differences between c-type 1 and 7 are minor */
1516 obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
1517
1518 switch(rsvp_obj_ctype) {
1519 case RSVP_CTYPE_1: /* new style */
1520 if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
1521 return-1;
1522 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1523 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1524 indent,
1525 obj_ptr.rsvp_obj_frr->setup_prio,
1526 obj_ptr.rsvp_obj_frr->hold_prio,
1527 obj_ptr.rsvp_obj_frr->hop_limit,
1528 bw.f * 8 / 1000000);
1529 ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
1530 indent,
1531 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1532 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
1533 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_all));
1534 obj_tlen-=sizeof(struct rsvp_obj_frr_t);
1535 obj_tptr+=sizeof(struct rsvp_obj_frr_t);
1536 break;
1537
1538 case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
1539 if (obj_tlen < 16)
1540 return-1;
1541 bw.i = EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
1542 ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1543 indent,
1544 obj_ptr.rsvp_obj_frr->setup_prio,
1545 obj_ptr.rsvp_obj_frr->hold_prio,
1546 obj_ptr.rsvp_obj_frr->hop_limit,
1547 bw.f * 8 / 1000000);
1548 ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1549 indent,
1550 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
1551 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any));
1552 obj_tlen-=16;
1553 obj_tptr+=16;
1554 break;
1555
1556 default:
1557 hexdump=TRUE;
1558 }
1559 break;
1560
1561 case RSVP_OBJ_DETOUR:
1562 switch(rsvp_obj_ctype) {
1563 case RSVP_CTYPE_TUNNEL_IPV4:
1564 while(obj_tlen >= 8) {
1565 ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s",
1566 indent,
1567 ipaddr_string(ndo, obj_tptr),
1568 ipaddr_string(ndo, obj_tptr + 4));
1569 obj_tlen-=8;
1570 obj_tptr+=8;
1571 }
1572 break;
1573 default:
1574 hexdump=TRUE;
1575 }
1576 break;
1577
1578 case RSVP_OBJ_CLASSTYPE:
1579 case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
1580 switch(rsvp_obj_ctype) {
1581 case RSVP_CTYPE_1:
1582 ND_PRINT("%s CT: %u",
1583 indent,
1584 EXTRACT_BE_U_4(obj_tptr) & 0x7);
1585 obj_tlen-=4;
1586 obj_tptr+=4;
1587 break;
1588 default:
1589 hexdump=TRUE;
1590 }
1591 break;
1592
1593 case RSVP_OBJ_ERROR_SPEC:
1594 switch(rsvp_obj_ctype) {
1595 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1596 case RSVP_CTYPE_IPV4:
1597 if (obj_tlen < 8)
1598 return-1;
1599 error_code=EXTRACT_U_1(obj_tptr + 5);
1600 error_value=EXTRACT_BE_U_2(obj_tptr + 6);
1601 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1602 indent,
1603 ipaddr_string(ndo, obj_tptr),
1604 EXTRACT_U_1(obj_tptr + 4),
1605 indent,
1606 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1607 error_code);
1608 switch (error_code) {
1609 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1610 ND_PRINT(", Error Value: %s (%u)",
1611 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1612 error_value);
1613 break;
1614 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
1615 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
1616 ND_PRINT(", Error Value: %s (%u)",
1617 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1618 error_value);
1619 break;
1620 default:
1621 ND_PRINT(", Unknown Error Value (%u)", error_value);
1622 break;
1623 }
1624 obj_tlen-=8;
1625 obj_tptr+=8;
1626 break;
1627 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1628 case RSVP_CTYPE_IPV6:
1629 if (obj_tlen < 20)
1630 return-1;
1631 error_code=EXTRACT_U_1(obj_tptr + 17);
1632 error_value=EXTRACT_BE_U_2(obj_tptr + 18);
1633 ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1634 indent,
1635 ip6addr_string(ndo, obj_tptr),
1636 EXTRACT_U_1(obj_tptr + 16),
1637 indent,
1638 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1639 error_code);
1640
1641 switch (error_code) {
1642 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1643 ND_PRINT(", Error Value: %s (%u)",
1644 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1645 error_value);
1646 break;
1647 default:
1648 break;
1649 }
1650 obj_tlen-=20;
1651 obj_tptr+=20;
1652 break;
1653 default:
1654 hexdump=TRUE;
1655 }
1656 break;
1657
1658 case RSVP_OBJ_PROPERTIES:
1659 switch(rsvp_obj_ctype) {
1660 case RSVP_CTYPE_1:
1661 if (obj_tlen < 4)
1662 return-1;
1663 padbytes = EXTRACT_BE_U_2(obj_tptr + 2);
1664 ND_PRINT("%s TLV count: %u, padding bytes: %u",
1665 indent,
1666 EXTRACT_BE_U_2(obj_tptr),
1667 padbytes);
1668 obj_tlen-=4;
1669 obj_tptr+=4;
1670 /* loop through as long there is anything longer than the TLV header (2) */
1671 while(obj_tlen >= 2 + padbytes) {
1672 ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */
1673 indent,
1674 tok2str(rsvp_obj_prop_tlv_values,"unknown",EXTRACT_U_1(obj_tptr)),
1675 EXTRACT_U_1(obj_tptr),
1676 EXTRACT_U_1(obj_tptr + 1));
1677 if (obj_tlen < EXTRACT_U_1(obj_tptr + 1))
1678 return-1;
1679 if (EXTRACT_U_1(obj_tptr + 1) < 2)
1680 return -1;
1681 print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
1682 EXTRACT_U_1(obj_tptr + 1) - 2);
1683 obj_tlen-=EXTRACT_U_1(obj_tptr + 1);
1684 obj_tptr+=EXTRACT_U_1(obj_tptr + 1);
1685 }
1686 break;
1687 default:
1688 hexdump=TRUE;
1689 }
1690 break;
1691
1692 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1693 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1694 case RSVP_OBJ_MESSAGE_ID_LIST:
1695 switch(rsvp_obj_ctype) {
1696 case RSVP_CTYPE_1:
1697 case RSVP_CTYPE_2:
1698 if (obj_tlen < 8)
1699 return-1;
1700 ND_PRINT("%s Flags [0x%02x], epoch: %u",
1701 indent,
1702 EXTRACT_U_1(obj_tptr),
1703 EXTRACT_BE_U_3(obj_tptr + 1));
1704 obj_tlen-=4;
1705 obj_tptr+=4;
1706 /* loop through as long there are no messages left */
1707 while(obj_tlen >= 4) {
1708 ND_PRINT("%s Message-ID 0x%08x (%u)",
1709 indent,
1710 EXTRACT_BE_U_4(obj_tptr),
1711 EXTRACT_BE_U_4(obj_tptr));
1712 obj_tlen-=4;
1713 obj_tptr+=4;
1714 }
1715 break;
1716 default:
1717 hexdump=TRUE;
1718 }
1719 break;
1720
1721 case RSVP_OBJ_INTEGRITY:
1722 switch(rsvp_obj_ctype) {
1723 case RSVP_CTYPE_1:
1724 if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
1725 return-1;
1726 obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
1727 ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
1728 indent,
1729 EXTRACT_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
1730 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
1731 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
1732 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
1733 bittok2str(rsvp_obj_integrity_flag_values,
1734 "none",
1735 obj_ptr.rsvp_obj_integrity->flags));
1736 ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ",
1737 indent,
1738 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
1739 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
1740 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
1741 EXTRACT_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12));
1742
1743 sigcheck = signature_verify(ndo, pptr, plen,
1744 obj_ptr.rsvp_obj_integrity->digest,
1745 rsvp_clear_checksum,
1746 rsvp_com_header);
1747 ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
1748
1749 obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
1750 obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
1751 break;
1752 default:
1753 hexdump=TRUE;
1754 }
1755 break;
1756
1757 case RSVP_OBJ_ADMIN_STATUS:
1758 switch(rsvp_obj_ctype) {
1759 case RSVP_CTYPE_1:
1760 if (obj_tlen < 4)
1761 return-1;
1762 ND_PRINT("%s Flags [%s]", indent,
1763 bittok2str(rsvp_obj_admin_status_flag_values, "none",
1764 EXTRACT_BE_U_4(obj_tptr)));
1765 obj_tlen-=4;
1766 obj_tptr+=4;
1767 break;
1768 default:
1769 hexdump=TRUE;
1770 }
1771 break;
1772
1773 case RSVP_OBJ_LABEL_SET:
1774 switch(rsvp_obj_ctype) {
1775 case RSVP_CTYPE_1:
1776 if (obj_tlen < 4)
1777 return-1;
1778 action = (EXTRACT_BE_U_2(obj_tptr)>>8);
1779
1780 ND_PRINT("%s Action: %s (%u), Label type: %u", indent,
1781 tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
1782 action, ((EXTRACT_BE_U_4(obj_tptr) & 0x7F)));
1783
1784 switch (action) {
1785 case LABEL_SET_INCLUSIVE_RANGE:
1786 case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
1787
1788 /* only a couple of subchannels are expected */
1789 if (obj_tlen < 12)
1790 return -1;
1791 ND_PRINT("%s Start range: %u, End range: %u", indent,
1792 EXTRACT_BE_U_4(obj_tptr + 4),
1793 EXTRACT_BE_U_4(obj_tptr + 8));
1794 obj_tlen-=12;
1795 obj_tptr+=12;
1796 break;
1797
1798 default:
1799 obj_tlen-=4;
1800 obj_tptr+=4;
1801 subchannel = 1;
1802 while(obj_tlen >= 4 ) {
1803 ND_PRINT("%s Subchannel #%u: %u", indent, subchannel,
1804 EXTRACT_BE_U_4(obj_tptr));
1805 obj_tptr+=4;
1806 obj_tlen-=4;
1807 subchannel++;
1808 }
1809 break;
1810 }
1811 break;
1812 default:
1813 hexdump=TRUE;
1814 }
1815 break;
1816
1817 case RSVP_OBJ_S2L:
1818 switch (rsvp_obj_ctype) {
1819 case RSVP_CTYPE_IPV4:
1820 if (obj_tlen < 4)
1821 return-1;
1822 ND_PRINT("%s Sub-LSP destination address: %s",
1823 indent, ipaddr_string(ndo, obj_tptr));
1824
1825 obj_tlen-=4;
1826 obj_tptr+=4;
1827 break;
1828 case RSVP_CTYPE_IPV6:
1829 if (obj_tlen < 16)
1830 return-1;
1831 ND_PRINT("%s Sub-LSP destination address: %s",
1832 indent, ip6addr_string(ndo, obj_tptr));
1833
1834 obj_tlen-=16;
1835 obj_tptr+=16;
1836 break;
1837 default:
1838 hexdump=TRUE;
1839 }
1840 break;
1841
1842 /*
1843 * FIXME those are the defined objects that lack a decoder
1844 * you are welcome to contribute code ;-)
1845 */
1846
1847 case RSVP_OBJ_SCOPE:
1848 case RSVP_OBJ_POLICY_DATA:
1849 case RSVP_OBJ_ACCEPT_LABEL_SET:
1850 case RSVP_OBJ_PROTECTION:
1851 default:
1852 if (ndo->ndo_vflag <= 1)
1853 print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
1854 break;
1855 }
1856 /* do we also want to see a hex dump ? */
1857 if (ndo->ndo_vflag > 1 || hexdump == TRUE)
1858 print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
1859 rsvp_obj_len - sizeof(struct rsvp_object_header));
1860
1861 tptr+=rsvp_obj_len;
1862 tlen-=rsvp_obj_len;
1863 }
1864 return 0;
1865 invalid:
1866 ND_PRINT("%s", istr);
1867 return -1;
1868 trunc:
1869 ND_PRINT("\n\t\t");
1870 ND_PRINT("%s", tstr);
1871 return -1;
1872 }
1873
1874 void
1875 rsvp_print(netdissect_options *ndo,
1876 const u_char *pptr, u_int len)
1877 {
1878 const struct rsvp_common_header *rsvp_com_header;
1879 uint8_t version_flags, msg_type;
1880 const u_char *tptr;
1881 u_short plen, tlen;
1882
1883 tptr=pptr;
1884
1885 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1886 ND_TCHECK_SIZE(rsvp_com_header);
1887 version_flags = EXTRACT_U_1(rsvp_com_header->version_flags);
1888
1889 /*
1890 * Sanity checking of the header.
1891 */
1892 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1893 ND_PRINT("ERROR: RSVP version %u packet not supported",
1894 RSVP_EXTRACT_VERSION(version_flags));
1895 return;
1896 }
1897
1898 msg_type = EXTRACT_U_1(rsvp_com_header->msg_type);
1899
1900 /* in non-verbose mode just lets print the basic Message Type*/
1901 if (ndo->ndo_vflag < 1) {
1902 ND_PRINT("RSVPv%u %s Message, length: %u",
1903 RSVP_EXTRACT_VERSION(version_flags),
1904 tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type),
1905 len);
1906 return;
1907 }
1908
1909 /* ok they seem to want to know everything - lets fully decode it */
1910
1911 plen = tlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1912
1913 ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1914 RSVP_EXTRACT_VERSION(version_flags),
1915 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1916 msg_type,
1917 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1918 tlen,
1919 EXTRACT_U_1(rsvp_com_header->ttl),
1920 EXTRACT_BE_U_2(rsvp_com_header->checksum));
1921
1922 if (tlen < sizeof(struct rsvp_common_header)) {
1923 ND_PRINT("ERROR: common header too short %u < %lu", tlen,
1924 (unsigned long)sizeof(struct rsvp_common_header));
1925 return;
1926 }
1927
1928 tptr+=sizeof(struct rsvp_common_header);
1929 tlen-=sizeof(struct rsvp_common_header);
1930
1931 switch(msg_type) {
1932
1933 case RSVP_MSGTYPE_BUNDLE:
1934 /*
1935 * Process each submessage in the bundle message.
1936 * Bundle messages may not contain bundle submessages, so we don't
1937 * need to handle bundle submessages specially.
1938 */
1939 while(tlen > 0) {
1940 const u_char *subpptr=tptr, *subtptr;
1941 u_short subplen, subtlen;
1942
1943 subtptr=subpptr;
1944
1945 rsvp_com_header = (const struct rsvp_common_header *)subpptr;
1946 ND_TCHECK_SIZE(rsvp_com_header);
1947 version_flags = EXTRACT_U_1(rsvp_com_header->version_flags);
1948
1949 /*
1950 * Sanity checking of the header.
1951 */
1952 if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
1953 ND_PRINT("ERROR: RSVP version %u packet not supported",
1954 RSVP_EXTRACT_VERSION(version_flags));
1955 return;
1956 }
1957
1958 subplen = subtlen = EXTRACT_BE_U_2(rsvp_com_header->length);
1959
1960 msg_type = EXTRACT_U_1(rsvp_com_header->msg_type);
1961 ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1962 RSVP_EXTRACT_VERSION(version_flags),
1963 tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
1964 msg_type,
1965 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
1966 subtlen,
1967 EXTRACT_U_1(rsvp_com_header->ttl),
1968 EXTRACT_BE_U_2(rsvp_com_header->checksum));
1969
1970 if (subtlen < sizeof(struct rsvp_common_header)) {
1971 ND_PRINT("ERROR: common header too short %u < %lu", subtlen,
1972 (unsigned long)sizeof(struct rsvp_common_header));
1973 return;
1974 }
1975
1976 if (tlen < subtlen) {
1977 ND_PRINT("ERROR: common header too large %u > %u", subtlen,
1978 tlen);
1979 return;
1980 }
1981
1982 subtptr+=sizeof(struct rsvp_common_header);
1983 subtlen-=sizeof(struct rsvp_common_header);
1984
1985 /*
1986 * Print all objects in the submessage.
1987 */
1988 if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
1989 return;
1990
1991 tptr+=subtlen+sizeof(struct rsvp_common_header);
1992 tlen-=subtlen+sizeof(struct rsvp_common_header);
1993 }
1994
1995 break;
1996
1997 case RSVP_MSGTYPE_PATH:
1998 case RSVP_MSGTYPE_RESV:
1999 case RSVP_MSGTYPE_PATHERR:
2000 case RSVP_MSGTYPE_RESVERR:
2001 case RSVP_MSGTYPE_PATHTEAR:
2002 case RSVP_MSGTYPE_RESVTEAR:
2003 case RSVP_MSGTYPE_RESVCONF:
2004 case RSVP_MSGTYPE_HELLO_OLD:
2005 case RSVP_MSGTYPE_HELLO:
2006 case RSVP_MSGTYPE_ACK:
2007 case RSVP_MSGTYPE_SREFRESH:
2008 /*
2009 * Print all objects in the message.
2010 */
2011 if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
2012 return;
2013 break;
2014
2015 default:
2016 print_unknown_data(ndo, tptr, "\n\t ", tlen);
2017 break;
2018 }
2019
2020 return;
2021 trunc:
2022 ND_PRINT("\n\t\t");
2023 ND_PRINT("%s", tstr);
2024 }
[mirror] the TCPdump network dissector