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bugfix: prevent infinite loop in ERO processing, print ERO subtype length
[tcpdump] / print-rsvp.c
1 /*
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that: (1) source code
4 * distributions retain the above copyright notice and this paragraph
5 * in its entirety, and (2) distributions including binary code include
6 * the above copyright notice and this paragraph in its entirety in
7 * the documentation or other materials provided with the distribution.
8 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
9 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
10 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
11 * FOR A PARTICULAR PURPOSE.
12 *
13 * Original code by Hannes Gredler (hannes@juniper.net)
14 */
15
16 #ifndef lint
17 static const char rcsid[] _U_ =
18 "@(#) $Header: /tcpdump/master/tcpdump/print-rsvp.c,v 1.34 2005-04-25 13:18:30 hannes Exp $";
19 #endif
20
21 #ifdef HAVE_CONFIG_H
22 #include "config.h"
23 #endif
24
25 #include <tcpdump-stdinc.h>
26
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include "interface.h"
32 #include "extract.h"
33 #include "addrtoname.h"
34 #include "ethertype.h"
35 #include "gmpls.h"
36
37 /*
38 * RFC 2205 common header
39 *
40 * 0 1 2 3
41 * +-------------+-------------+-------------+-------------+
42 * | Vers | Flags| Msg Type | RSVP Checksum |
43 * +-------------+-------------+-------------+-------------+
44 * | Send_TTL | (Reserved) | RSVP Length |
45 * +-------------+-------------+-------------+-------------+
46 *
47 */
48
49 struct rsvp_common_header {
50 u_int8_t version_flags;
51 u_int8_t msg_type;
52 u_int8_t checksum[2];
53 u_int8_t ttl;
54 u_int8_t reserved;
55 u_int8_t length[2];
56 };
57
58 /*
59 * RFC2205 object header
60 *
61 *
62 * 0 1 2 3
63 * +-------------+-------------+-------------+-------------+
64 * | Length (bytes) | Class-Num | C-Type |
65 * +-------------+-------------+-------------+-------------+
66 * | |
67 * // (Object contents) //
68 * | |
69 * +-------------+-------------+-------------+-------------+
70 */
71
72 struct rsvp_object_header {
73 u_int8_t length[2];
74 u_int8_t class_num;
75 u_int8_t ctype;
76 };
77
78 #define RSVP_VERSION 1
79 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
80 #define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f)
81
82 #define RSVP_MSGTYPE_PATH 1
83 #define RSVP_MSGTYPE_RESV 2
84 #define RSVP_MSGTYPE_PATHERR 3
85 #define RSVP_MSGTYPE_RESVERR 4
86 #define RSVP_MSGTYPE_PATHTEAR 5
87 #define RSVP_MSGTYPE_RESVTEAR 6
88 #define RSVP_MSGTYPE_RESVCONF 7
89 #define RSVP_MSGTYPE_AGGREGATE 12
90 #define RSVP_MSGTYPE_ACK 13
91 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
92 #define RSVP_MSGTYPE_SREFRESH 15
93 #define RSVP_MSGTYPE_HELLO 20
94
95 static const struct tok rsvp_msg_type_values[] = {
96 { RSVP_MSGTYPE_PATH, "Path" },
97 { RSVP_MSGTYPE_RESV, "Resv" },
98 { RSVP_MSGTYPE_PATHERR, "PathErr" },
99 { RSVP_MSGTYPE_RESVERR, "ResvErr" },
100 { RSVP_MSGTYPE_PATHTEAR, "PathTear" },
101 { RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
102 { RSVP_MSGTYPE_RESVCONF, "ResvConf" },
103 { RSVP_MSGTYPE_AGGREGATE, "Aggregate" },
104 { RSVP_MSGTYPE_ACK, "Acknowledgement" },
105 { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
106 { RSVP_MSGTYPE_SREFRESH, "Refresh" },
107 { RSVP_MSGTYPE_HELLO, "Hello" },
108 { 0, NULL}
109 };
110
111 static const struct tok rsvp_header_flag_values[] = {
112 { 0x01, "Refresh reduction capable" }, /* rfc2961 */
113 { 0, NULL}
114 };
115
116 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
117 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
118 #define RSVP_OBJ_INTEGRITY 4
119 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
120 #define RSVP_OBJ_ERROR_SPEC 6
121 #define RSVP_OBJ_SCOPE 7
122 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
123 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
124 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
125 #define RSVP_OBJ_SENDER_TEMPLATE 11
126 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
127 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
128 #define RSVP_OBJ_POLICY_DATA 14
129 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
130 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
131 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
132 #define RSVP_OBJ_ERO 20 /* rfc3209 */
133 #define RSVP_OBJ_RRO 21 /* rfc3209 */
134 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
135 #define RSVP_OBJ_MESSAGE_ID 23
136 #define RSVP_OBJ_MESSAGE_ID_ACK 24
137 #define RSVP_OBJ_MESSAGE_ID_LIST 25
138 #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
139 #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
140 #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
141 #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
142 #define RSVP_OBJ_DETOUR 63 /* draft-ietf-mpls-rsvp-lsp-fastreroute-01 */
143 #define RSVP_OBJ_CLASSTYPE 125 /* draft-ietf-tewg-diff-te-proto-07 */
144 #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
145 #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
146 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
147 #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
148 #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
149 #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
150 #define RSVP_OBJ_FASTREROUTE 205 /* draft-ietf-mpls-rsvp-lsp-fastreroute-01 */
151 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
152 #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
153 #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
154
155 static const struct tok rsvp_obj_values[] = {
156 { RSVP_OBJ_SESSION, "Session" },
157 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
158 { RSVP_OBJ_INTEGRITY, "Integrity" },
159 { RSVP_OBJ_TIME_VALUES, "Time Values" },
160 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
161 { RSVP_OBJ_SCOPE, "Scope" },
162 { RSVP_OBJ_STYLE, "Style" },
163 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
164 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
165 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
166 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
167 { RSVP_OBJ_ADSPEC, "Adspec" },
168 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
169 { RSVP_OBJ_CONFIRM, "Confirm" },
170 { RSVP_OBJ_LABEL, "Label" },
171 { RSVP_OBJ_LABEL_REQ, "Label Request" },
172 { RSVP_OBJ_ERO, "ERO" },
173 { RSVP_OBJ_RRO, "RRO" },
174 { RSVP_OBJ_HELLO, "Hello" },
175 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
176 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
177 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
178 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
179 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
180 { RSVP_OBJ_LABEL_SET, "Label Set" },
181 { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
182 { RSVP_OBJ_DETOUR, "Detour" },
183 { RSVP_OBJ_CLASSTYPE, "Class Type" },
184 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
185 { RSVP_OBJ_PROPERTIES, "Properties" },
186 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
187 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
188 { RSVP_OBJ_CALL_ID, "Call-ID" },
189 { RSVP_OBJ_CALL_OPS, "Call Capability" },
190 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
191 { RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
192 { RSVP_OBJ_PROTECTION, "Protection" },
193 { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
194 { 0, NULL}
195 };
196
197 #define RSVP_CTYPE_IPV4 1
198 #define RSVP_CTYPE_IPV6 2
199 #define RSVP_CTYPE_TUNNEL_IPV4 7
200 #define RSVP_CTYPE_TUNNEL_IPV6 8
201 #define RSVP_CTYPE_1 1
202 #define RSVP_CTYPE_2 2
203 #define RSVP_CTYPE_3 3
204 #define RSVP_CTYPE_4 4
205
206 /*
207 * the ctypes are not globally unique so for
208 * translating it to strings we build a table based
209 * on objects offsetted by the ctype
210 */
211
212 static const struct tok rsvp_ctype_values[] = {
213 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
214 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
215 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
216 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
217 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
218 { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
219 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
220 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
221 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
222 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
223 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
224 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
225 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
226 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
227 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
228 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
229 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
230 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
231 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
232 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
233 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
234 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
235 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
236 { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
237 { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "1" },
238 { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
239 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
240 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
241 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
242 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
243 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
244 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
245 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
246 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
247 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
248 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
249 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
250 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
251 { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
252 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
253 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
254 { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
255 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
256 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
257 { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
258 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
259 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
260 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
261 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
262 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
263 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
264 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
265 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
266 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
267 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
268 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
269 { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
270 { 0, NULL}
271 };
272
273 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
274 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
275
276 #define RSVP_OBJ_XRO_RES 0
277 #define RSVP_OBJ_XRO_IPV4 1
278 #define RSVP_OBJ_XRO_IPV6 2
279 #define RSVP_OBJ_XRO_ASN 32
280 #define RSVP_OBJ_XRO_MPLS 64
281
282 static const struct tok rsvp_obj_xro_values[] = {
283 { RSVP_OBJ_XRO_RES, "Reserved" },
284 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
285 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
286 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
287 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
288 { 0, NULL}
289 };
290
291 /* draft-ietf-mpls-rsvp-lsp-fastreroute-02.txt */
292 static const struct tok rsvp_obj_rro_flag_values[] = {
293 { 0x01, "Local protection available" },
294 { 0x02, "Local protection in use" },
295 { 0x04, "Bandwidth protection" },
296 { 0x08, "Node protection" },
297 { 0, NULL}
298 };
299
300 static const struct tok rsvp_resstyle_values[] = {
301 { 17, "Wildcard Filter" },
302 { 10, "Fixed Filter" },
303 { 18, "Shared Explicit" },
304 { 0, NULL}
305 };
306
307 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
308 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
309
310 static const struct tok rsvp_intserv_service_type_values[] = {
311 { 1, "Default/Global Information" },
312 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
313 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
314 { 0, NULL}
315 };
316
317 static const struct tok rsvp_intserv_parameter_id_values[] = {
318 { 4, "IS hop cnt" },
319 { 6, "Path b/w estimate" },
320 { 8, "Minimum path latency" },
321 { 10, "Composed MTU" },
322 { 127, "Token Bucket TSpec" },
323 { 130, "Guaranteed Service RSpec" },
324 { 133, "End-to-end composed value for C" },
325 { 134, "End-to-end composed value for D" },
326 { 135, "Since-last-reshaping point composed C" },
327 { 136, "Since-last-reshaping point composed D" },
328 { 0, NULL}
329 };
330
331 static struct tok rsvp_session_attribute_flag_values[] = {
332 { 0x01, "Local Protection desired" },
333 { 0x02, "Label Recording desired" },
334 { 0x04, "SE Style desired" },
335 { 0x08, "Bandwidth protection desired" }, /* draft-ietf-mpls-rsvp-lsp-fastreroute-02.txt */
336 { 0x10, "Node protection desired" }, /* draft-ietf-mpls-rsvp-lsp-fastreroute-02.txt */
337 { 0, NULL}
338 };
339
340 static struct tok rsvp_obj_prop_tlv_values[] = {
341 { 0x01, "Cos" },
342 { 0x02, "Metric 1" },
343 { 0x04, "Metric 2" },
344 { 0x08, "CCC Status" },
345 { 0x10, "Path Type" },
346 { 0, NULL}
347 };
348
349 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
350 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
351 #define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 125
352
353 static struct tok rsvp_obj_error_code_values[] = {
354 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
355 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
356 { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
357 { 0, NULL}
358 };
359
360 static struct tok rsvp_obj_error_code_routing_values[] = {
361 { 1, "Bad EXPLICIT_ROUTE object" },
362 { 2, "Bad strict node" },
363 { 3, "Bad loose node" },
364 { 4, "Bad initial subobject" },
365 { 5, "No route available toward destination" },
366 { 6, "Unacceptable label value" },
367 { 7, "RRO indicated routing loops" },
368 { 8, "non-RSVP-capable router in the path" },
369 { 9, "MPLS label allocation failure" },
370 { 10, "Unsupported L3PID" },
371 { 0, NULL}
372 };
373
374 static struct tok rsvp_obj_error_code_diffserv_te_values[] = {
375 { 1, "Unexpected CLASSTYPE object" },
376 { 2, "Unsupported Class-Type" },
377 { 3, "Invalid Class-Type value" },
378 { 4, "Class-Type and setup priority do not form a configured TE-Class" },
379 { 5, "Class-Type and holding priority do not form a configured TE-Class" },
380 { 6, "Inconsistency between signaled PSC and signaled Class-Type" },
381 { 7, "Inconsistency between signaled PHBs and signaled Class-Type" },
382 { 0, NULL}
383 };
384
385 #define FALSE 0
386 #define TRUE 1
387
388
389 static int rsvp_intserv_print(const u_char *, u_short);
390
391 /*
392 * this is a dissector for all the intserv defined
393 * specs as defined per rfc2215
394 * it is called from various rsvp objects;
395 * returns the amount of bytes being processed
396 */
397 static int
398 rsvp_intserv_print(const u_char *tptr, u_short obj_tlen) {
399
400 int parameter_id,parameter_length;
401 union {
402 float f;
403 u_int32_t i;
404 } bw;
405
406 if (obj_tlen < 4)
407 return 0;
408 parameter_id = *(tptr);
409 parameter_length = EXTRACT_16BITS(tptr+2)<<2; /* convert wordcount to bytecount */
410
411 printf("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
412 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
413 parameter_id,
414 parameter_length,
415 *(tptr+1));
416
417 if (obj_tlen < parameter_length+4)
418 return 0;
419 switch(parameter_id) { /* parameter_id */
420
421 case 4:
422 /*
423 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
424 * | 4 (e) | (f) | 1 (g) |
425 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
426 * | IS hop cnt (32-bit unsigned integer) |
427 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
428 */
429 if (parameter_length == 4)
430 printf("\n\t\tIS hop count: %u", EXTRACT_32BITS(tptr+4));
431 break;
432
433 case 6:
434 /*
435 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
436 * | 6 (h) | (i) | 1 (j) |
437 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
438 * | Path b/w estimate (32-bit IEEE floating point number) |
439 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
440 */
441 if (parameter_length == 4) {
442 bw.i = EXTRACT_32BITS(tptr+4);
443 printf("\n\t\tPath b/w estimate: %.10g Mbps", bw.f/125000);
444 }
445 break;
446
447 case 8:
448 /*
449 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
450 * | 8 (k) | (l) | 1 (m) |
451 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
452 * | Minimum path latency (32-bit integer) |
453 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
454 */
455 if (parameter_length == 4) {
456 printf("\n\t\tMinimum path latency: ");
457 if (EXTRACT_32BITS(tptr+4) == 0xffffffff)
458 printf("don't care");
459 else
460 printf("%u", EXTRACT_32BITS(tptr+4));
461 }
462 break;
463
464 case 10:
465
466 /*
467 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
468 * | 10 (n) | (o) | 1 (p) |
469 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
470 * | Composed MTU (32-bit unsigned integer) |
471 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
472 */
473 if (parameter_length == 4)
474 printf("\n\t\tComposed MTU: %u bytes", EXTRACT_32BITS(tptr+4));
475 break;
476 case 127:
477 /*
478 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
479 * | 127 (e) | 0 (f) | 5 (g) |
480 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
481 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
482 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
483 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
484 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
485 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
486 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
487 * | Minimum Policed Unit [m] (32-bit integer) |
488 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
489 * | Maximum Packet Size [M] (32-bit integer) |
490 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
491 */
492
493 if (parameter_length == 20) {
494 bw.i = EXTRACT_32BITS(tptr+4);
495 printf("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f/125000);
496 bw.i = EXTRACT_32BITS(tptr+8);
497 printf("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
498 bw.i = EXTRACT_32BITS(tptr+12);
499 printf("\n\t\tPeak Data Rate: %.10g Mbps", bw.f/125000);
500 printf("\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_32BITS(tptr+16));
501 printf("\n\t\tMaximum Packet Size: %u bytes", EXTRACT_32BITS(tptr+20));
502 }
503 break;
504
505 case 130:
506 /*
507 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
508 * | 130 (h) | 0 (i) | 2 (j) |
509 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
510 * | Rate [R] (32-bit IEEE floating point number) |
511 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
512 * | Slack Term [S] (32-bit integer) |
513 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
514 */
515
516 if (parameter_length == 8) {
517 bw.i = EXTRACT_32BITS(tptr+4);
518 printf("\n\t\tRate: %.10g Mbps", bw.f/125000);
519 printf("\n\t\tSlack Term: %u", EXTRACT_32BITS(tptr+8));
520 }
521 break;
522
523 case 133:
524 case 134:
525 case 135:
526 case 136:
527 if (parameter_length == 4)
528 printf("\n\t\tValue: %u", EXTRACT_32BITS(tptr+4));
529 break;
530
531 default:
532 if (vflag <= 1)
533 print_unknown_data(tptr+4,"\n\t\t",parameter_length);
534 }
535 return (parameter_length+4); /* header length 4 bytes */
536 }
537
538 static int
539 rsvp_obj_print (const u_char *tptr, const char *ident, u_int tlen) {
540
541 const struct rsvp_object_header *rsvp_obj_header;
542 const u_char *obj_tptr;
543 u_short rsvp_obj_len,rsvp_obj_ctype,obj_tlen,intserv_serv_tlen;
544 int hexdump,processed,padbytes,error_code,error_value,i;
545 union {
546 float f;
547 u_int32_t i;
548 } bw;
549 u_int8_t namelen;
550
551 while(tlen>0) {
552 /* did we capture enough for fully decoding the object header ? */
553 if (!TTEST2(*tptr, sizeof(struct rsvp_object_header)))
554 goto trunc;
555
556 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
557 rsvp_obj_len=EXTRACT_16BITS(rsvp_obj_header->length);
558 rsvp_obj_ctype=rsvp_obj_header->ctype;
559
560 if(rsvp_obj_len % 4 || rsvp_obj_len < sizeof(struct rsvp_object_header)) {
561 printf("%sERROR: object header too short %u < %lu", ident, rsvp_obj_len,
562 (unsigned long)sizeof(const struct rsvp_object_header));
563 return -1;
564 }
565
566 printf("%s%s Object (%u) Flags: [%s",
567 ident,
568 tok2str(rsvp_obj_values,
569 "Unknown",
570 rsvp_obj_header->class_num),
571 rsvp_obj_header->class_num,
572 ((rsvp_obj_header->class_num)&0x80) ? "ignore" : "reject");
573
574 if (rsvp_obj_header->class_num > 128)
575 printf(" %s",
576 ((rsvp_obj_header->class_num)&0x40) ? "and forward" : "silently");
577
578 printf(" if unknown], Class-Type: %s (%u), length: %u",
579 tok2str(rsvp_ctype_values,
580 "Unknown",
581 ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
582 rsvp_obj_ctype,
583 rsvp_obj_len);
584
585 obj_tptr=tptr+sizeof(struct rsvp_object_header);
586 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
587
588 /* did we capture enough for fully decoding the object ? */
589 if (!TTEST2(*tptr, rsvp_obj_len))
590 return -1;
591 hexdump=FALSE;
592
593 switch(rsvp_obj_header->class_num) {
594 case RSVP_OBJ_SESSION:
595 switch(rsvp_obj_ctype) {
596 case RSVP_CTYPE_IPV4:
597 if (obj_tlen < 8)
598 return -1;
599 printf("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
600 ident,
601 ipaddr_string(obj_tptr),
602 *(obj_tptr+4));
603 printf("%s Flags: [0x%02x], DestPort %u",
604 ident,
605 *(obj_tptr+5),
606 EXTRACT_16BITS(obj_tptr+6));
607 obj_tlen-=8;
608 obj_tptr+=8;
609 break;
610 #ifdef INET6
611 case RSVP_CTYPE_IPV6:
612 if (obj_tlen < 20)
613 return -1;
614 printf("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
615 ident,
616 ip6addr_string(obj_tptr),
617 *(obj_tptr+16));
618 printf("%s Flags: [0x%02x], DestPort %u",
619 ident,
620 *(obj_tptr+17),
621 EXTRACT_16BITS(obj_tptr+18));
622 obj_tlen-=20;
623 obj_tptr+=20;
624 break;
625
626 case RSVP_CTYPE_TUNNEL_IPV6:
627 if (obj_tlen < 36)
628 return -1;
629 printf("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
630 ident,
631 ip6addr_string(obj_tptr),
632 EXTRACT_16BITS(obj_tptr+18),
633 ip6addr_string(obj_tptr+20));
634 obj_tlen-=36;
635 obj_tptr+=36;
636 break;
637 #endif
638 case RSVP_CTYPE_TUNNEL_IPV4:
639 if (obj_tlen < 12)
640 return -1;
641 printf("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
642 ident,
643 ipaddr_string(obj_tptr),
644 EXTRACT_16BITS(obj_tptr+6),
645 ipaddr_string(obj_tptr+8));
646 obj_tlen-=12;
647 obj_tptr+=12;
648 break;
649 default:
650 hexdump=TRUE;
651 }
652 break;
653
654 case RSVP_OBJ_CONFIRM:
655 switch(rsvp_obj_ctype) {
656 case RSVP_CTYPE_IPV4:
657 if (obj_tlen < 4)
658 return -1;
659 printf("%s IPv4 Receiver Address: %s",
660 ident,
661 ipaddr_string(obj_tptr));
662 obj_tlen-=4;
663 obj_tptr+=4;
664 break;
665 #ifdef INET6
666 case RSVP_CTYPE_IPV6:
667 if (obj_tlen < 16)
668 return -1;
669 printf("%s IPv6 Receiver Address: %s",
670 ident,
671 ip6addr_string(obj_tptr));
672 obj_tlen-=16;
673 obj_tptr+=16;
674 break;
675 #endif
676 default:
677 hexdump=TRUE;
678 }
679 break;
680
681 case RSVP_OBJ_NOTIFY_REQ:
682 switch(rsvp_obj_ctype) {
683 case RSVP_CTYPE_IPV4:
684 if (obj_tlen < 4)
685 return -1;
686 printf("%s IPv4 Notify Node Address: %s",
687 ident,
688 ipaddr_string(obj_tptr));
689 obj_tlen-=4;
690 obj_tptr+=4;
691 break;
692 #ifdef INET6
693 case RSVP_CTYPE_IPV6:
694 if (obj_tlen < 16)
695 return-1;
696 printf("%s IPv6 Notify Node Address: %s",
697 ident,
698 ip6addr_string(obj_tptr));
699 obj_tlen-=16;
700 obj_tptr+=16;
701 break;
702 #endif
703 default:
704 hexdump=TRUE;
705 }
706 break;
707
708 case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
709 case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
710 case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
711 case RSVP_OBJ_LABEL:
712 switch(rsvp_obj_ctype) {
713 case RSVP_CTYPE_1:
714 while(obj_tlen >= 4 ) {
715 printf("%s Label: %u", ident, EXTRACT_32BITS(obj_tptr));
716 obj_tlen-=4;
717 obj_tptr+=4;
718 }
719 break;
720 case RSVP_CTYPE_2:
721 if (obj_tlen < 4)
722 return-1;
723 printf("%s Generalized Label: %u",
724 ident,
725 EXTRACT_32BITS(obj_tptr));
726 obj_tlen-=4;
727 obj_tptr+=4;
728 break;
729 case RSVP_CTYPE_3:
730 if (obj_tlen < 12)
731 return-1;
732 printf("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
733 ident,
734 EXTRACT_32BITS(obj_tptr),
735 ident,
736 EXTRACT_32BITS(obj_tptr+4),
737 EXTRACT_32BITS(obj_tptr+8));
738 obj_tlen-=12;
739 obj_tptr+=12;
740 break;
741 default:
742 hexdump=TRUE;
743 }
744 break;
745
746 case RSVP_OBJ_STYLE:
747 switch(rsvp_obj_ctype) {
748 case RSVP_CTYPE_1:
749 if (obj_tlen < 4)
750 return-1;
751 printf("%s Reservation Style: %s, Flags: [0x%02x]",
752 ident,
753 tok2str(rsvp_resstyle_values,
754 "Unknown",
755 EXTRACT_24BITS(obj_tptr+1)),
756 *(obj_tptr));
757 obj_tlen-=4;
758 obj_tptr+=4;
759 break;
760 default:
761 hexdump=TRUE;
762 }
763 break;
764
765 case RSVP_OBJ_SENDER_TEMPLATE:
766 switch(rsvp_obj_ctype) {
767 case RSVP_CTYPE_IPV4:
768 if (obj_tlen < 8)
769 return-1;
770 printf("%s Source Address: %s, Source Port: %u",
771 ident,
772 ipaddr_string(obj_tptr),
773 EXTRACT_16BITS(obj_tptr+6));
774 obj_tlen-=8;
775 obj_tptr+=8;
776 break;
777 #ifdef INET6
778 case RSVP_CTYPE_IPV6:
779 if (obj_tlen < 20)
780 return-1;
781 printf("%s Source Address: %s, Source Port: %u",
782 ident,
783 ip6addr_string(obj_tptr),
784 EXTRACT_16BITS(obj_tptr+18));
785 obj_tlen-=20;
786 obj_tptr+=20;
787 break;
788 #endif
789 case RSVP_CTYPE_TUNNEL_IPV4:
790 if (obj_tlen < 8)
791 return-1;
792 printf("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
793 ident,
794 ipaddr_string(obj_tptr),
795 EXTRACT_16BITS(obj_tptr+6));
796 obj_tlen-=8;
797 obj_tptr+=8;
798 break;
799 default:
800 hexdump=TRUE;
801 }
802 break;
803
804 case RSVP_OBJ_LABEL_REQ:
805 switch(rsvp_obj_ctype) {
806 case RSVP_CTYPE_1:
807 while(obj_tlen >= 4 ) {
808 printf("%s L3 Protocol ID: %s",
809 ident,
810 tok2str(ethertype_values,
811 "Unknown Protocol (0x%04x)",
812 EXTRACT_16BITS(obj_tptr+2)));
813 obj_tlen-=4;
814 obj_tptr+=4;
815 }
816 break;
817 case RSVP_CTYPE_2:
818 if (obj_tlen < 12)
819 return-1;
820 printf("%s L3 Protocol ID: %s",
821 ident,
822 tok2str(ethertype_values,
823 "Unknown Protocol (0x%04x)",
824 EXTRACT_16BITS(obj_tptr+2)));
825 printf(",%s merge capability",((*(obj_tptr+4))&0x80) ? "no" : "" );
826 printf("%s Minimum VPI/VCI: %u/%u",
827 ident,
828 (EXTRACT_16BITS(obj_tptr+4))&0xfff,
829 (EXTRACT_16BITS(obj_tptr+6))&0xfff);
830 printf("%s Maximum VPI/VCI: %u/%u",
831 ident,
832 (EXTRACT_16BITS(obj_tptr+8))&0xfff,
833 (EXTRACT_16BITS(obj_tptr+10))&0xfff);
834 obj_tlen-=12;
835 obj_tptr+=12;
836 break;
837 case RSVP_CTYPE_3:
838 if (obj_tlen < 12)
839 return-1;
840 printf("%s L3 Protocol ID: %s",
841 ident,
842 tok2str(ethertype_values,
843 "Unknown Protocol (0x%04x)",
844 EXTRACT_16BITS(obj_tptr+2)));
845 printf("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
846 ident,
847 (EXTRACT_32BITS(obj_tptr+4))&0x7fffff,
848 (EXTRACT_32BITS(obj_tptr+8))&0x7fffff,
849 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 0 ) ? "10" : "",
850 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 2 ) ? "23" : "");
851 obj_tlen-=12;
852 obj_tptr+=12;
853 break;
854 case RSVP_CTYPE_4:
855 if (obj_tlen < 8)
856 return-1;
857 printf("%s LSP Encoding Type: %s (%u)",
858 ident,
859 tok2str(gmpls_encoding_values,
860 "Unknown",
861 *obj_tptr),
862 *obj_tptr);
863 printf("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
864 ident,
865 tok2str(gmpls_switch_cap_values,
866 "Unknown",
867 *(obj_tptr+1)),
868 *(obj_tptr+1),
869 tok2str(gmpls_payload_values,
870 "Unknown",
871 EXTRACT_16BITS(obj_tptr+2)),
872 EXTRACT_16BITS(obj_tptr+2));
873 obj_tlen-=8;
874 obj_tptr+=8;
875 break;
876 default:
877 hexdump=TRUE;
878 }
879 break;
880
881 case RSVP_OBJ_RRO:
882 case RSVP_OBJ_ERO:
883 switch(rsvp_obj_ctype) {
884 case RSVP_CTYPE_IPV4:
885 while(obj_tlen >= 4 ) {
886 printf("%s Subobject Type: %s, length %u",
887 ident,
888 tok2str(rsvp_obj_xro_values,
889 "Unknown %u",
890 RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)),
891 *(obj_tptr+1));
892
893 if (*(obj_tptr+1) == 0) /* prevent infinite loops */
894 printf("%s ERROR: zero length ERO subtype",ident);
895 break;
896
897 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)) {
898 case RSVP_OBJ_XRO_IPV4:
899 printf(", %s, %s/%u, Flags: [%s]",
900 RSVP_OBJ_XRO_MASK_LOOSE(*obj_tptr) ? "Loose" : "Strict",
901 ipaddr_string(obj_tptr+2),
902 *(obj_tptr+6),
903 bittok2str(rsvp_obj_rro_flag_values,
904 "none",
905 *(obj_tptr+7))); /* rfc3209 says that this field is rsvd. */
906 }
907 obj_tlen-=*(obj_tptr+1);
908 obj_tptr+=*(obj_tptr+1);
909 }
910 break;
911 default:
912 hexdump=TRUE;
913 }
914 break;
915
916 case RSVP_OBJ_HELLO:
917 switch(rsvp_obj_ctype) {
918 case RSVP_CTYPE_1:
919 case RSVP_CTYPE_2:
920 if (obj_tlen < 8)
921 return-1;
922 printf("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
923 ident,
924 EXTRACT_32BITS(obj_tptr),
925 EXTRACT_32BITS(obj_tptr+4));
926 obj_tlen-=8;
927 obj_tptr+=8;
928 break;
929 default:
930 hexdump=TRUE;
931 }
932 break;
933
934 case RSVP_OBJ_RESTART_CAPABILITY:
935 switch(rsvp_obj_ctype) {
936 case RSVP_CTYPE_1:
937 if (obj_tlen < 8)
938 return-1;
939 printf("%s Restart Time: %ums, Recovery Time: %ums",
940 ident,
941 EXTRACT_32BITS(obj_tptr),
942 EXTRACT_32BITS(obj_tptr+4));
943 obj_tlen-=8;
944 obj_tptr+=8;
945 break;
946 default:
947 hexdump=TRUE;
948 }
949 break;
950
951 case RSVP_OBJ_SESSION_ATTRIBUTE:
952 switch(rsvp_obj_ctype) {
953 case RSVP_CTYPE_TUNNEL_IPV4:
954 if (obj_tlen < 4)
955 return-1;
956 namelen = *(obj_tptr+3);
957 if (obj_tlen < 4+namelen)
958 return-1;
959 printf("%s Session Name: ", ident);
960 for (i = 0; i < namelen; i++)
961 safeputchar(*(obj_tptr+4+i));
962 printf("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s]",
963 ident,
964 (int)*obj_tptr,
965 (int)*(obj_tptr+1),
966 tok2str(rsvp_session_attribute_flag_values,
967 "none",
968 *(obj_tptr+2)));
969
970 obj_tlen-=4+*(obj_tptr+3);
971 obj_tptr+=4+*(obj_tptr+3);
972 break;
973 default:
974 hexdump=TRUE;
975 }
976 break;
977
978 case RSVP_OBJ_RSVP_HOP:
979 switch(rsvp_obj_ctype) {
980 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
981 case RSVP_CTYPE_IPV4:
982 if (obj_tlen < 8)
983 return-1;
984 printf("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
985 ident,
986 ipaddr_string(obj_tptr),
987 EXTRACT_32BITS(obj_tptr+4));
988 obj_tlen-=8;
989 obj_tptr+=8;
990 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
991 break;
992 #ifdef INET6
993 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
994 case RSVP_CTYPE_IPV6:
995 if (obj_tlen < 20)
996 return-1;
997 printf("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
998 ident,
999 ip6addr_string(obj_tptr),
1000 EXTRACT_32BITS(obj_tptr+16));
1001 obj_tlen-=20;
1002 obj_tptr+=20;
1003 hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
1004 break;
1005 #endif
1006 default:
1007 hexdump=TRUE;
1008 }
1009 break;
1010
1011 case RSVP_OBJ_TIME_VALUES:
1012 switch(rsvp_obj_ctype) {
1013 case RSVP_CTYPE_1:
1014 if (obj_tlen < 4)
1015 return-1;
1016 printf("%s Refresh Period: %ums",
1017 ident,
1018 EXTRACT_32BITS(obj_tptr));
1019 obj_tlen-=4;
1020 obj_tptr+=4;
1021 break;
1022 default:
1023 hexdump=TRUE;
1024 }
1025 break;
1026
1027 /* those three objects do share the same semantics */
1028 case RSVP_OBJ_SENDER_TSPEC:
1029 case RSVP_OBJ_ADSPEC:
1030 case RSVP_OBJ_FLOWSPEC:
1031 switch(rsvp_obj_ctype) {
1032 case RSVP_CTYPE_2:
1033 if (obj_tlen < 4)
1034 return-1;
1035 printf("%s Msg-Version: %u, length: %u",
1036 ident,
1037 (*obj_tptr & 0xf0) >> 4,
1038 EXTRACT_16BITS(obj_tptr+2)<<2);
1039 obj_tptr+=4; /* get to the start of the service header */
1040 obj_tlen-=4;
1041
1042 while (obj_tlen >= 4) {
1043 intserv_serv_tlen=EXTRACT_16BITS(obj_tptr+2)<<2;
1044 printf("%s Service Type: %s (%u), break bit %s set, Service length: %u",
1045 ident,
1046 tok2str(rsvp_intserv_service_type_values,"unknown",*(obj_tptr)),
1047 *(obj_tptr),
1048 (*(obj_tptr+1)&0x80) ? "" : "not",
1049 intserv_serv_tlen);
1050
1051 obj_tptr+=4; /* get to the start of the parameter list */
1052 obj_tlen-=4;
1053
1054 while (intserv_serv_tlen>=4) {
1055 processed = rsvp_intserv_print(obj_tptr, obj_tlen);
1056 if (processed == 0)
1057 break;
1058 obj_tlen-=processed;
1059 intserv_serv_tlen-=processed;
1060 obj_tptr+=processed;
1061 }
1062 }
1063 break;
1064 default:
1065 hexdump=TRUE;
1066 }
1067 break;
1068
1069 case RSVP_OBJ_FILTERSPEC:
1070 switch(rsvp_obj_ctype) {
1071 case RSVP_CTYPE_IPV4:
1072 if (obj_tlen < 8)
1073 return-1;
1074 printf("%s Source Address: %s, Source Port: %u",
1075 ident,
1076 ipaddr_string(obj_tptr),
1077 EXTRACT_16BITS(obj_tptr+6));
1078 obj_tlen-=8;
1079 obj_tptr+=8;
1080 break;
1081 #ifdef INET6
1082 case RSVP_CTYPE_IPV6:
1083 if (obj_tlen < 20)
1084 return-1;
1085 printf("%s Source Address: %s, Source Port: %u",
1086 ident,
1087 ip6addr_string(obj_tptr),
1088 EXTRACT_16BITS(obj_tptr+18));
1089 obj_tlen-=20;
1090 obj_tptr+=20;
1091 break;
1092 case RSVP_CTYPE_3:
1093 if (obj_tlen < 20)
1094 return-1;
1095 printf("%s Source Address: %s, Flow Label: %u",
1096 ident,
1097 ip6addr_string(obj_tptr),
1098 EXTRACT_24BITS(obj_tptr+17));
1099 obj_tlen-=20;
1100 obj_tptr+=20;
1101 break;
1102 case RSVP_CTYPE_TUNNEL_IPV6:
1103 if (obj_tlen < 20)
1104 return-1;
1105 printf("%s Source Address: %s, LSP-ID: 0x%04x",
1106 ident,
1107 ipaddr_string(obj_tptr),
1108 EXTRACT_16BITS(obj_tptr+18));
1109 obj_tlen-=20;
1110 obj_tptr+=20;
1111 break;
1112 #endif
1113 case RSVP_CTYPE_TUNNEL_IPV4:
1114 if (obj_tlen < 8)
1115 return-1;
1116 printf("%s Source Address: %s, LSP-ID: 0x%04x",
1117 ident,
1118 ipaddr_string(obj_tptr),
1119 EXTRACT_16BITS(obj_tptr+6));
1120 obj_tlen-=8;
1121 obj_tptr+=8;
1122 break;
1123 default:
1124 hexdump=TRUE;
1125 }
1126 break;
1127
1128 case RSVP_OBJ_FASTREROUTE:
1129 switch(rsvp_obj_ctype) {
1130 case RSVP_CTYPE_TUNNEL_IPV4:
1131 if (obj_tlen < 16)
1132 return-1;
1133 bw.i = EXTRACT_32BITS(obj_tptr+4);
1134 printf("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
1135 ident,
1136 (int)*obj_tptr,
1137 (int)*(obj_tptr+1),
1138 (int)*(obj_tptr+2),
1139 bw.f*8/1000000);
1140 printf("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
1141 ident,
1142 EXTRACT_32BITS(obj_tptr+8),
1143 EXTRACT_32BITS(obj_tptr+12));
1144 obj_tlen-=16;
1145 obj_tptr+=16;
1146 break;
1147 default:
1148 hexdump=TRUE;
1149 }
1150 break;
1151
1152 case RSVP_OBJ_DETOUR:
1153 switch(rsvp_obj_ctype) {
1154 case RSVP_CTYPE_TUNNEL_IPV4:
1155 while(obj_tlen >= 8) {
1156 printf("%s PLR-ID: %s, Avoid-Node-ID: %s",
1157 ident,
1158 ipaddr_string(obj_tptr),
1159 ipaddr_string(obj_tptr+4));
1160 obj_tlen-=8;
1161 obj_tptr+=8;
1162 }
1163 break;
1164 default:
1165 hexdump=TRUE;
1166 }
1167 break;
1168
1169 case RSVP_OBJ_CLASSTYPE:
1170 switch(rsvp_obj_ctype) {
1171 case RSVP_CTYPE_1:
1172 printf("%s Class Type: %u",
1173 ident,
1174 EXTRACT_32BITS(obj_tptr)&0x7);
1175 obj_tlen-=4;
1176 obj_tptr+=4;
1177 break;
1178 default:
1179 hexdump=TRUE;
1180 }
1181 break;
1182
1183 case RSVP_OBJ_ERROR_SPEC:
1184 switch(rsvp_obj_ctype) {
1185 case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
1186 case RSVP_CTYPE_IPV4:
1187 if (obj_tlen < 8)
1188 return-1;
1189 error_code=*(obj_tptr+5);
1190 error_value=EXTRACT_16BITS(obj_tptr+6);
1191 printf("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1192 ident,
1193 ipaddr_string(obj_tptr),
1194 *(obj_tptr+4),
1195 ident,
1196 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1197 error_code);
1198 switch (error_code) {
1199 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1200 printf(", Error Value: %s (%u)",
1201 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1202 error_value);
1203 break;
1204 case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE:
1205 printf(", Error Value: %s (%u)",
1206 tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
1207 error_value);
1208 break;
1209 default:
1210 printf(", Unknown Error Value (%u)", error_value);
1211 break;
1212 }
1213 obj_tlen-=8;
1214 obj_tptr+=8;
1215 break;
1216 #ifdef INET6
1217 case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
1218 case RSVP_CTYPE_IPV6:
1219 if (obj_tlen < 20)
1220 return-1;
1221 error_code=*(obj_tptr+17);
1222 error_value=EXTRACT_16BITS(obj_tptr+18);
1223 printf("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
1224 ident,
1225 ip6addr_string(obj_tptr),
1226 *(obj_tptr+16),
1227 ident,
1228 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
1229 error_code);
1230
1231 switch (error_code) {
1232 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
1233 printf(", Error Value: %s (%u)",
1234 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
1235 error_value);
1236 break;
1237 default:
1238 break;
1239 }
1240 obj_tlen-=20;
1241 obj_tptr+=20;
1242 break;
1243 #endif
1244 default:
1245 hexdump=TRUE;
1246 }
1247 break;
1248
1249 case RSVP_OBJ_PROPERTIES:
1250 switch(rsvp_obj_ctype) {
1251 case RSVP_CTYPE_1:
1252 if (obj_tlen < 4)
1253 return-1;
1254 padbytes = EXTRACT_16BITS(obj_tptr+2);
1255 printf("%s TLV count: %u, padding bytes: %u",
1256 ident,
1257 EXTRACT_16BITS(obj_tptr),
1258 padbytes);
1259 obj_tlen-=4;
1260 obj_tptr+=4;
1261 /* loop through as long there is anything longer than the TLV header (2) */
1262 while(obj_tlen >= 2 + padbytes) {
1263 printf("%s %s TLV (0x%02x), length: %u", /* length includes header */
1264 ident,
1265 tok2str(rsvp_obj_prop_tlv_values,"unknown",*obj_tptr),
1266 *obj_tptr,
1267 *(obj_tptr+1));
1268 if (obj_tlen < *(obj_tptr+1))
1269 return-1;
1270 print_unknown_data(obj_tptr+2,"\n\t\t",*(obj_tptr+1)-2);
1271 obj_tlen-=*(obj_tptr+1);
1272 obj_tptr+=*(obj_tptr+1);
1273 }
1274 break;
1275 default:
1276 hexdump=TRUE;
1277 }
1278 break;
1279
1280 case RSVP_OBJ_MESSAGE_ID: /* fall through */
1281 case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
1282 case RSVP_OBJ_MESSAGE_ID_LIST:
1283 switch(rsvp_obj_ctype) {
1284 case RSVP_CTYPE_1:
1285 if (obj_tlen < 8)
1286 return-1;
1287 printf("%s Flags [0x%02x], epoch: %u",
1288 ident,
1289 *obj_tptr,
1290 EXTRACT_24BITS(obj_tptr+1));
1291 obj_tlen-=4;
1292 obj_tptr+=4;
1293 /* loop through as long there are no messages left */
1294 while(obj_tlen >= 4) {
1295 printf("%s Message-ID 0x%08x (%u)",
1296 ident,
1297 EXTRACT_32BITS(obj_tptr),
1298 EXTRACT_32BITS(obj_tptr));
1299 obj_tlen-=4;
1300 obj_tptr+=4;
1301 }
1302 break;
1303 default:
1304 hexdump=TRUE;
1305 }
1306 break;
1307
1308 /*
1309 * FIXME those are the defined objects that lack a decoder
1310 * you are welcome to contribute code ;-)
1311 */
1312
1313 case RSVP_OBJ_INTEGRITY:
1314 case RSVP_OBJ_SCOPE:
1315 case RSVP_OBJ_POLICY_DATA:
1316 case RSVP_OBJ_LABEL_SET:
1317 case RSVP_OBJ_ACCEPT_LABEL_SET:
1318 case RSVP_OBJ_PROTECTION:
1319 default:
1320 if (vflag <= 1)
1321 print_unknown_data(obj_tptr,"\n\t ",obj_tlen); /* FIXME indentation */
1322 break;
1323 }
1324 /* do we also want to see a hex dump ? */
1325 if (vflag > 1 || hexdump==TRUE)
1326 print_unknown_data(tptr+sizeof(sizeof(struct rsvp_object_header)),"\n\t ", /* FIXME indentation */
1327 rsvp_obj_len-sizeof(struct rsvp_object_header));
1328
1329 tptr+=rsvp_obj_len;
1330 tlen-=rsvp_obj_len;
1331 }
1332 return 0;
1333 trunc:
1334 printf("\n\t\t packet exceeded snapshot");
1335 return -1;
1336 }
1337
1338
1339 void
1340 rsvp_print(register const u_char *pptr, register u_int len) {
1341
1342 const struct rsvp_common_header *rsvp_com_header;
1343 const u_char *tptr,*subtptr;
1344 u_short tlen,subtlen;
1345
1346 tptr=pptr;
1347
1348 rsvp_com_header = (const struct rsvp_common_header *)pptr;
1349 TCHECK(*rsvp_com_header);
1350
1351 /*
1352 * Sanity checking of the header.
1353 */
1354 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1355 printf("ERROR: RSVP version %u packet not supported",
1356 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags));
1357 return;
1358 }
1359
1360 /* in non-verbose mode just lets print the basic Message Type*/
1361 if (vflag < 1) {
1362 printf("RSVPv%u %s Message, length: %u",
1363 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1364 tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
1365 len);
1366 return;
1367 }
1368
1369 /* ok they seem to want to know everything - lets fully decode it */
1370
1371 tlen=EXTRACT_16BITS(rsvp_com_header->length);
1372
1373 printf("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1374 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1375 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1376 rsvp_com_header->msg_type,
1377 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1378 tlen,
1379 rsvp_com_header->ttl,
1380 EXTRACT_16BITS(rsvp_com_header->checksum));
1381
1382 if (tlen < sizeof(const struct rsvp_common_header)) {
1383 printf("ERROR: common header too short %u < %lu", tlen,
1384 (unsigned long)sizeof(const struct rsvp_common_header));
1385 return;
1386 }
1387
1388 tptr+=sizeof(const struct rsvp_common_header);
1389 tlen-=sizeof(const struct rsvp_common_header);
1390
1391 switch(rsvp_com_header->msg_type) {
1392
1393 case RSVP_MSGTYPE_AGGREGATE:
1394 while(tlen > 0) {
1395 subtptr=tptr;
1396 rsvp_com_header = (const struct rsvp_common_header *)subtptr;
1397 TCHECK(*rsvp_com_header);
1398
1399 /*
1400 * Sanity checking of the header.
1401 */
1402 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
1403 printf("ERROR: RSVP version %u packet not supported",
1404 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags));
1405 return;
1406 }
1407 subtlen=EXTRACT_16BITS(rsvp_com_header->length);
1408
1409 printf("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
1410 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
1411 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
1412 rsvp_com_header->msg_type,
1413 bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
1414 subtlen,
1415 rsvp_com_header->ttl,
1416 EXTRACT_16BITS(rsvp_com_header->checksum));
1417
1418 if (subtlen < sizeof(const struct rsvp_common_header)) {
1419 printf("ERROR: common header too short %u < %lu", subtlen,
1420 (unsigned long)sizeof(const struct rsvp_common_header));
1421 return;
1422 }
1423
1424 subtptr+=sizeof(const struct rsvp_common_header);
1425 subtlen-=sizeof(const struct rsvp_common_header);
1426
1427 if (rsvp_obj_print(subtptr,"\n\t ", subtlen) == -1)
1428 return;
1429
1430 tptr+=subtlen+sizeof(const struct rsvp_common_header);
1431 tlen-=subtlen+sizeof(const struct rsvp_common_header);
1432 }
1433
1434 break;
1435
1436 case RSVP_MSGTYPE_PATH:
1437 case RSVP_MSGTYPE_RESV:
1438 case RSVP_MSGTYPE_PATHERR:
1439 case RSVP_MSGTYPE_RESVERR:
1440 case RSVP_MSGTYPE_PATHTEAR:
1441 case RSVP_MSGTYPE_RESVTEAR:
1442 case RSVP_MSGTYPE_RESVCONF:
1443 case RSVP_MSGTYPE_HELLO_OLD:
1444 case RSVP_MSGTYPE_HELLO:
1445 case RSVP_MSGTYPE_ACK:
1446 case RSVP_MSGTYPE_SREFRESH:
1447 if (rsvp_obj_print(tptr,"\n\t ", tlen) == -1)
1448 return;
1449 break;
1450
1451 default:
1452 print_unknown_data(tptr,"\n\t ",tlen);
1453 break;
1454 }
1455
1456 return;
1457 trunc:
1458 printf("\n\t\t packet exceeded snapshot");
1459 }
[mirror] the TCPdump network dissector