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added support for parsing the RSVP Properties and Error Spec Object
[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[] =
18 "@(#) $Header: /tcpdump/master/tcpdump/print-rsvp.c,v 1.15 2003-03-05 11:13:34 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
36 /*
37 * RFC 2205 common header
38 *
39 * 0 1 2 3
40 * +-------------+-------------+-------------+-------------+
41 * | Vers | Flags| Msg Type | RSVP Checksum |
42 * +-------------+-------------+-------------+-------------+
43 * | Send_TTL | (Reserved) | RSVP Length |
44 * +-------------+-------------+-------------+-------------+
45 *
46 */
47
48 struct rsvp_common_header {
49 u_int8_t version_flags;
50 u_int8_t msg_type;
51 u_int8_t checksum[2];
52 u_int8_t ttl;
53 u_int8_t reserved;
54 u_int8_t length[2];
55 };
56
57 /*
58 * RFC2205 object header
59 *
60 *
61 * 0 1 2 3
62 * +-------------+-------------+-------------+-------------+
63 * | Length (bytes) | Class-Num | C-Type |
64 * +-------------+-------------+-------------+-------------+
65 * | |
66 * // (Object contents) //
67 * | |
68 * +-------------+-------------+-------------+-------------+
69 */
70
71 struct rsvp_object_header {
72 u_int8_t length[2];
73 u_int8_t class_num;
74 u_int8_t ctype;
75 };
76
77 #define RSVP_VERSION 1
78 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
79
80 #define RSVP_MSGTYPE_PATH 1
81 #define RSVP_MSGTYPE_RESV 2
82 #define RSVP_MSGTYPE_PATHERR 3
83 #define RSVP_MSGTYPE_RESVERR 4
84 #define RSVP_MSGTYPE_PATHTEAR 5
85 #define RSVP_MSGTYPE_RESVTEAR 6
86 #define RSVP_MSGTYPE_RESVCONF 7
87 #define RSVP_MSGTYPE_AGGREGATE 12
88 #define RSVP_MSGTYPE_ACK 13
89 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
90 #define RSVP_MSGTYPE_SREFRESH 15
91 #define RSVP_MSGTYPE_HELLO 20
92
93 static const struct tok rsvp_msg_type_values[] = {
94 { RSVP_MSGTYPE_PATH, "Path" },
95 { RSVP_MSGTYPE_RESV, "Resv" },
96 { RSVP_MSGTYPE_PATHERR, "PathErr" },
97 { RSVP_MSGTYPE_RESVERR, "ResvErr" },
98 { RSVP_MSGTYPE_PATHTEAR, "PathTear" },
99 { RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
100 { RSVP_MSGTYPE_RESVCONF, "ResvConf" },
101 { RSVP_MSGTYPE_AGGREGATE, "Aggregate" },
102 { RSVP_MSGTYPE_ACK, "Acknowledgement" },
103 { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
104 { RSVP_MSGTYPE_SREFRESH, "Refresh" },
105 { RSVP_MSGTYPE_HELLO, "Hello" },
106 { 0, NULL}
107 };
108
109 #define RSVP_OBJ_SESSION 1 /* rfc2205 */
110 #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205 */
111 #define RSVP_OBJ_INTEGRITY 4
112 #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
113 #define RSVP_OBJ_ERROR_SPEC 6
114 #define RSVP_OBJ_SCOPE 7
115 #define RSVP_OBJ_STYLE 8 /* rfc2205 */
116 #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
117 #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
118 #define RSVP_OBJ_SENDER_TEMPLATE 11
119 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
120 #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
121 #define RSVP_OBJ_POLICY_DATA 14
122 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
123 #define RSVP_OBJ_LABEL 16 /* rfc3209 */
124 #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
125 #define RSVP_OBJ_ERO 20 /* rfc3209 */
126 #define RSVP_OBJ_RRO 21 /* rfc3209 */
127 #define RSVP_OBJ_HELLO 22 /* rfc3209 */
128 #define RSVP_OBJ_MESSAGE_ID 23
129 #define RSVP_OBJ_MESSAGE_ID_ACK 24
130 #define RSVP_OBJ_MESSAGE_ID_LIST 25
131 #define RSVP_OBJ_RECOVERY_LABEL 34
132 #define RSVP_OBJ_UPSTREAM_LABEL 35
133 #define RSVP_OBJ_DETOUR 63 /* draft-ietf-mpls-rsvp-lsp-fastreroute-01 */
134 #define RSVP_OBJ_SUGGESTED_LABEL 129
135 #define RSVP_OBJ_PROPERTIES 204
136 #define RSVP_OBJ_FASTREROUTE 205 /* draft-ietf-mpls-rsvp-lsp-fastreroute-01 */
137 #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
138 #define RSVP_OBJ_RESTART_CAPABILITY 131 /* draft-pan-rsvp-te-restart */
139
140 static const struct tok rsvp_obj_values[] = {
141 { RSVP_OBJ_SESSION, "Session" },
142 { RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
143 { RSVP_OBJ_INTEGRITY, "Integrity" },
144 { RSVP_OBJ_TIME_VALUES, "Time Values" },
145 { RSVP_OBJ_ERROR_SPEC, "Error Spec" },
146 { RSVP_OBJ_SCOPE, "Scope" },
147 { RSVP_OBJ_STYLE, "Style" },
148 { RSVP_OBJ_FLOWSPEC, "Flowspec" },
149 { RSVP_OBJ_FILTERSPEC, "FilterSpec" },
150 { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
151 { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
152 { RSVP_OBJ_ADSPEC, "Adspec" },
153 { RSVP_OBJ_POLICY_DATA, "Policy Data" },
154 { RSVP_OBJ_CONFIRM, "Confirm" },
155 { RSVP_OBJ_LABEL, "Label" },
156 { RSVP_OBJ_LABEL_REQ, "Label Request" },
157 { RSVP_OBJ_ERO, "ERO" },
158 { RSVP_OBJ_RRO, "RRO" },
159 { RSVP_OBJ_HELLO, "Hello" },
160 { RSVP_OBJ_MESSAGE_ID, "Message ID" },
161 { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
162 { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
163 { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
164 { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
165 { RSVP_OBJ_DETOUR, "Detour" },
166 { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
167 { RSVP_OBJ_PROPERTIES, "Properties" },
168 { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
169 { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
170 { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
171 { 0, NULL}
172 };
173
174 #define RSVP_CTYPE_IPV4 1
175 #define RSVP_CTYPE_IPV6 2
176 #define RSVP_CTYPE_TUNNEL_IPV4 7
177 #define RSVP_CTYPE_TUNNEL_IPV6 8
178 #define RSVP_CTYPE_1 1
179 #define RSVP_CTYPE_2 2
180 #define RSVP_CTYPE_3 3
181
182 /*
183 * the ctypes are not globally unique so for
184 * translating it to strings we build a table based
185 * on objects offsetted by the ctype
186 */
187
188 static const struct tok rsvp_ctype_values[] = {
189 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
190 { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
191 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
192 { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
193 { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
194 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
195 { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
196 { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
197 { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
198 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
199 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
200 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
201 { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
202 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
203 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
204 { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
205 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
206 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
207 { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
208 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
209 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
210 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
211 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
212 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
213 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
214 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "1" },
215 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
216 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
217 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
218 { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
219 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
220 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
221 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
222 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
223 { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
224 { 0, NULL}
225 };
226
227 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
228 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
229
230 #define RSVP_OBJ_XRO_RES 0
231 #define RSVP_OBJ_XRO_IPV4 1
232 #define RSVP_OBJ_XRO_IPV6 2
233 #define RSVP_OBJ_XRO_ASN 32
234 #define RSVP_OBJ_XRO_MPLS 64
235
236 static const struct tok rsvp_obj_xro_values[] = {
237 { RSVP_OBJ_XRO_RES, "Reserved" },
238 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
239 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
240 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
241 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
242 { 0, NULL}
243 };
244
245 static const struct tok rsvp_resstyle_values[] = {
246 { 17, "Wildcard Filter" },
247 { 10, "Fixed Filter" },
248 { 18, "Shared Explicit" },
249 { 0, NULL}
250 };
251
252 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
253 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
254
255 static const struct tok rsvp_intserv_service_type_values[] = {
256 { 1, "Default/Global Information" },
257 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
258 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
259 { 0, NULL}
260 };
261
262 static const struct tok rsvp_intserv_parameter_id_values[] = {
263 { 4, "IS hop cnt" },
264 { 6, "Path b/w estimate" },
265 { 8, "Minimum path latency" },
266 { 10, "Composed MTU" },
267 { 127, "Token Bucket TSpec" },
268 { 130, "Guaranteed Service RSpec" },
269 { 133, "End-to-end composed value for C" },
270 { 134, "End-to-end composed value for D" },
271 { 135, "Since-last-reshaping point composed C" },
272 { 136, "Since-last-reshaping point composed D" },
273 { 0, NULL}
274 };
275
276 static struct tok rsvp_session_attribute_flag_values[] = {
277 { 1, "Local Protection desired" },
278 { 2, "Label Recording desired" },
279 { 4, "SE Style desired" },
280 { 0, NULL}
281 };
282
283 static struct tok rsvp_obj_prop_tlv_values[] = {
284 { 0x01, "Cos" },
285 { 0x02, "Metric 1" },
286 { 0x04, "Metric 2" },
287 { 0x08, "CCC Status" },
288 { 0x10, "Path Type" },
289 { 0, NULL}
290 };
291
292 #define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
293 #define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
294
295 static struct tok rsvp_obj_error_code_values[] = {
296 { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
297 { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
298 { 0, NULL}
299 };
300
301 static struct tok rsvp_obj_error_code_routing_values[] = {
302 { 1, "Bad EXPLICIT_ROUTE object" },
303 { 2, "Bad strict node" },
304 { 3, "Bad loose node" },
305 { 4, "Bad initial subobject" },
306 { 5, "No route available toward destination" },
307 { 6, "Unacceptable label value" },
308 { 7, "RRO indicated routing loops" },
309 { 8, "non-RSVP-capable router in the path" },
310 { 9, "MPLS label allocation failure" },
311 { 10, "Unsupported L3PID" },
312 { 0, NULL}
313 };
314
315 #define FALSE 0
316 #define TRUE 1
317
318
319 int rsvp_intserv_print(const u_char *);
320
321 /*
322 * this is a dissector for all the intserv defined
323 * specs as defined per rfc2215
324 * it is called from various rsvp objects;
325 * returns the amount of bytes being processed
326 */
327 int
328 rsvp_intserv_print(const u_char *tptr) {
329
330 int parameter_id,parameter_length;
331 union {
332 float f;
333 u_int32_t i;
334 } bw;
335
336 parameter_id = *(tptr);
337 parameter_length = EXTRACT_16BITS(tptr+2)<<2; /* convert wordcount to bytecount */
338
339 printf("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
340 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
341 parameter_id,
342 parameter_length,
343 *(tptr+1));
344
345 switch(parameter_id) { /* parameter_id */
346
347 case 4:
348 /*
349 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
350 * | 4 (e) | (f) | 1 (g) |
351 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
352 * | IS hop cnt (32-bit unsigned integer) |
353 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
354 */
355 printf("\n\t\tIS hop cnt: %u", EXTRACT_32BITS(tptr+4));
356 break;
357
358 case 6:
359 /*
360 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
361 * | 6 (h) | (i) | 1 (j) |
362 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
363 * | Path b/w estimate (32-bit IEEE floating point number) |
364 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
365 */
366 bw.i = EXTRACT_32BITS(tptr+4);
367 printf("\n\t\tPath b/w estimate: %.10g Mbps", bw.f/125000);
368 break;
369
370 case 8:
371 /*
372 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
373 * | 8 (k) | (l) | 1 (m) |
374 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
375 * | Minimum path latency (32-bit integer) |
376 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
377 */
378 printf("\n\t\tMinimum path latency: ");
379 if (EXTRACT_32BITS(tptr+4) == 0xffffffff)
380 printf("don't care");
381 else
382 printf("%u", EXTRACT_32BITS(tptr+4));
383 break;
384
385 case 10:
386
387 /*
388 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
389 * | 10 (n) | (o) | 1 (p) |
390 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
391 * | Composed MTU (32-bit unsigned integer) |
392 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
393 */
394 printf("\n\t\tComposed MTU: %u bytes", EXTRACT_32BITS(tptr+4));
395 break;
396 case 127:
397 /*
398 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
399 * | 127 (e) | 0 (f) | 5 (g) |
400 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
401 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
402 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
403 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
404 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
405 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
406 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
407 * | Minimum Policed Unit [m] (32-bit integer) |
408 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
409 * | Maximum Packet Size [M] (32-bit integer) |
410 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
411 */
412
413 bw.i = EXTRACT_32BITS(tptr+4);
414 printf("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f/125000);
415 bw.i = EXTRACT_32BITS(tptr+8);
416 printf("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
417 bw.i = EXTRACT_32BITS(tptr+12);
418 printf("\n\t\tPeak Data Rate: %.10g Mbps", bw.f/125000);
419 printf("\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_32BITS(tptr+16));
420 printf("\n\t\tMaximum Packet Size: %u bytes", EXTRACT_32BITS(tptr+20));
421 break;
422
423 case 130:
424 /*
425 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
426 * | 130 (h) | 0 (i) | 2 (j) |
427 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
428 * | Rate [R] (32-bit IEEE floating point number) |
429 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
430 * | Slack Term [S] (32-bit integer) |
431 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
432 */
433
434 bw.i = EXTRACT_32BITS(tptr+4);
435 printf("\n\t\tRate: %.10g Mbps", bw.f/125000);
436 printf("\n\t\tSlack Term: %u", EXTRACT_32BITS(tptr+8));
437 break;
438
439 case 133:
440 case 134:
441 case 135:
442 case 136:
443 printf("\n\t\tValue: %u", EXTRACT_32BITS(tptr+4));
444 break;
445
446 default:
447 if (vflag <= 1)
448 print_unknown_data(tptr+4,"\n\t\t",parameter_length);
449 }
450 return (parameter_length+4); /* header length 4 bytes */
451 }
452
453 void
454 rsvp_print(register const u_char *pptr, register u_int len) {
455
456 const struct rsvp_common_header *rsvp_com_header;
457 const struct rsvp_object_header *rsvp_obj_header;
458 const u_char *tptr,*obj_tptr;
459 u_short tlen,rsvp_obj_len,rsvp_obj_ctype,obj_tlen,intserv_serv_tlen;
460 int hexdump,processed,padbytes,error_code,error_value;
461 union {
462 float f;
463 u_int32_t i;
464 } bw;
465
466 tptr=pptr;
467 rsvp_com_header = (const struct rsvp_common_header *)pptr;
468 TCHECK(*rsvp_com_header);
469
470 /*
471 * Sanity checking of the header.
472 */
473 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
474 printf("RSVP version %u packet not supported",
475 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags));
476 return;
477 }
478
479 /* in non-verbose mode just lets print the basic Message Type*/
480 if (vflag < 1) {
481 printf("RSVP %s Message, length: %u",
482 tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
483 len);
484 return;
485 }
486
487 /* ok they seem to want to know everything - lets fully decode it */
488
489 tlen=EXTRACT_16BITS(rsvp_com_header->length);
490
491 printf("RSVP\n\tv: %u, msg-type: %s, length: %u, ttl: %u, checksum: 0x%04x",
492 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
493 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
494 tlen,
495 rsvp_com_header->ttl,
496 EXTRACT_16BITS(rsvp_com_header->checksum));
497
498 tptr+=sizeof(const struct rsvp_common_header);
499 tlen-=sizeof(const struct rsvp_common_header);
500
501 while(tlen>0) {
502 /* did we capture enough for fully decoding the object header ? */
503 if (!TTEST2(*tptr, sizeof(struct rsvp_object_header)))
504 goto trunc;
505
506 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
507 rsvp_obj_len=EXTRACT_16BITS(rsvp_obj_header->length);
508 rsvp_obj_ctype=rsvp_obj_header->ctype;
509
510 if(rsvp_obj_len % 4 || rsvp_obj_len < 4)
511 return;
512
513 printf("\n\t %s Object (%u) Flags: [%s",
514 tok2str(rsvp_obj_values,
515 "Unknown",
516 rsvp_obj_header->class_num),
517 rsvp_obj_header->class_num,
518 ((rsvp_obj_header->class_num)&0x80) ? "ignore" : "reject");
519
520 if (rsvp_obj_header->class_num > 128)
521 printf(" %s",
522 ((rsvp_obj_header->class_num)&0x40) ? "and forward" : "silently");
523
524 printf(" if unknown], Class-Type: %s (%u), length: %u",
525 tok2str(rsvp_ctype_values,
526 "Unknown",
527 ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
528 rsvp_obj_ctype,
529 rsvp_obj_len);
530
531 obj_tptr=tptr+sizeof(struct rsvp_object_header);
532 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
533
534 /* did we capture enough for fully decoding the object ? */
535 if (!TTEST2(*tptr, rsvp_obj_len))
536 goto trunc;
537 hexdump=FALSE;
538
539 switch(rsvp_obj_header->class_num) {
540 case RSVP_OBJ_SESSION:
541 switch(rsvp_obj_ctype) {
542 case RSVP_CTYPE_IPV4:
543 printf("\n\t IPv4 DestAddress: %s, Protocol ID: 0x%02x",
544 ipaddr_string(obj_tptr),
545 *(obj_tptr+4));
546 printf("\n\t Flags: [0x%02x], DestPort %u",
547 *(obj_tptr+5),
548 EXTRACT_16BITS(obj_tptr+6));
549 obj_tlen-=8;
550 obj_tptr+=8;
551 break;
552 #ifdef INET6
553 case RSVP_CTYPE_IPV6:
554 printf("\n\t IPv6 DestAddress: %s, Protocol ID: 0x%02x",
555 ip6addr_string(obj_tptr),
556 *(obj_tptr+16));
557 printf("\n\t Flags: [0x%02x], DestPort %u",
558 *(obj_tptr+17),
559 EXTRACT_16BITS(obj_tptr+18));
560 obj_tlen-=20;
561 obj_tptr+=20;
562 break;
563
564 case RSVP_CTYPE_TUNNEL_IPV6:
565 printf("\n\t IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
566 ip6addr_string(obj_tptr),
567 EXTRACT_16BITS(obj_tptr+18),
568 ip6addr_string(obj_tptr+20));
569 obj_tlen-=36;
570 obj_tptr+=36;
571 break;
572 #endif
573 case RSVP_CTYPE_TUNNEL_IPV4:
574 printf("\n\t IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
575 ipaddr_string(obj_tptr),
576 EXTRACT_16BITS(obj_tptr+6),
577 ipaddr_string(obj_tptr+8));
578 obj_tlen-=12;
579 obj_tptr+=12;
580 break;
581 default:
582 hexdump=TRUE;
583 }
584 break;
585
586 case RSVP_OBJ_CONFIRM:
587 switch(rsvp_obj_ctype) {
588 case RSVP_CTYPE_IPV4:
589 printf("\n\t IPv4 ReceiverAddress: %s",
590 ipaddr_string(obj_tptr));
591 obj_tlen-=4;
592 obj_tptr+=4;
593 break;
594 #ifdef INET6
595 case RSVP_CTYPE_IPV6:
596 printf("\n\t IPv6 ReceiverAddress: %s",
597 ip6addr_string(obj_tptr));
598 obj_tlen-=16;
599 obj_tptr+=16;
600 break;
601 #endif
602 default:
603 hexdump=TRUE;
604 }
605 break;
606
607 case RSVP_OBJ_LABEL:
608 switch(rsvp_obj_ctype) {
609 case RSVP_CTYPE_1:
610 while(obj_tlen >= 4 ) {
611 printf("\n\t Label: %u", EXTRACT_32BITS(obj_tptr));
612 obj_tlen-=4;
613 obj_tptr+=4;
614 }
615 break;
616 default:
617 hexdump=TRUE;
618 }
619 break;
620
621 case RSVP_OBJ_STYLE:
622 switch(rsvp_obj_ctype) {
623 case RSVP_CTYPE_1:
624 printf("\n\t Reservation Style: %s, Flags: [0x%02x]",
625 tok2str(rsvp_resstyle_values,
626 "Unknown",
627 EXTRACT_24BITS(obj_tptr+1)),
628 *(obj_tptr));
629 obj_tlen-=4;
630 obj_tptr+=4;
631 break;
632 default:
633 hexdump=TRUE;
634 }
635 break;
636
637 case RSVP_OBJ_SENDER_TEMPLATE:
638 switch(rsvp_obj_ctype) {
639 case RSVP_CTYPE_IPV4:
640 printf("\n\t Source Address: %s, Source Port: %u",
641 ipaddr_string(obj_tptr),
642 EXTRACT_16BITS(obj_tptr+6));
643 obj_tlen-=8;
644 obj_tptr+=8;
645 break;
646 #ifdef INET6
647 case RSVP_CTYPE_IPV6:
648 printf("\n\t Source Address: %s, Source Port: %u",
649 ip6addr_string(obj_tptr),
650 EXTRACT_16BITS(obj_tptr+18));
651 obj_tlen-=20;
652 obj_tptr+=20;
653 break;
654 #endif
655 case RSVP_CTYPE_TUNNEL_IPV4:
656 printf("\n\t IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
657 ipaddr_string(obj_tptr),
658 EXTRACT_16BITS(obj_tptr+6));
659 obj_tlen-=8;
660 obj_tptr+=8;
661 break;
662 default:
663 hexdump=TRUE;
664 }
665 break;
666
667 case RSVP_OBJ_LABEL_REQ:
668 switch(rsvp_obj_ctype) {
669 case RSVP_CTYPE_1:
670 while(obj_tlen >= 4 ) {
671 printf("\n\t L3 Protocol ID: %s",
672 tok2str(ethertype_values,
673 "Unknown Protocol 0x%04x",
674 EXTRACT_16BITS(obj_tptr+2)));
675 obj_tlen-=4;
676 obj_tptr+=4;
677 }
678 break;
679 case RSVP_CTYPE_2:
680 printf("\n\t L3 Protocol ID: %s",
681 tok2str(ethertype_values,
682 "Unknown Protocol 0x%04x",
683 EXTRACT_16BITS(obj_tptr+2)));
684 printf(",%s merge capability",((*(obj_tptr+4))&0x80) ? "no" : "" );
685 printf("\n\t Minimum VPI/VCI %u/%u",
686 (EXTRACT_16BITS(obj_tptr+4))&0xfff,
687 (EXTRACT_16BITS(obj_tptr+6))&0xfff);
688 printf("\n\t Maximum VPI/VCI %u/%u",
689 (EXTRACT_16BITS(obj_tptr+8))&0xfff,
690 (EXTRACT_16BITS(obj_tptr+10))&0xfff);
691 obj_tlen-=12;
692 obj_tptr+=12;
693 break;
694 case RSVP_CTYPE_3:
695 printf("\n\t L3 Protocol ID: %s",
696 tok2str(ethertype_values,
697 "Unknown Protocol 0x%04x",
698 EXTRACT_16BITS(obj_tptr+2)));
699 printf("\n\t Minimum/Maximum DLCI %u/%u, %s%s bit DLCI",
700 (EXTRACT_32BITS(obj_tptr+4))&0x7fffff,
701 (EXTRACT_32BITS(obj_tptr+8))&0x7fffff,
702 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 0 ) ? "10" : "",
703 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 2 ) ? "23" : "");
704 obj_tlen-=12;
705 obj_tptr+=12;
706 break;
707 default:
708 hexdump=TRUE;
709 }
710 break;
711
712 case RSVP_OBJ_RRO:
713 case RSVP_OBJ_ERO:
714 switch(rsvp_obj_ctype) {
715 case RSVP_CTYPE_IPV4:
716 while(obj_tlen >= 4 ) {
717 printf("\n\t Subobject Type: %s",
718 tok2str(rsvp_obj_xro_values,
719 "Unknown %u",
720 RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)));
721 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)) {
722 case RSVP_OBJ_XRO_IPV4:
723 printf(", %s, %s/%u",
724 RSVP_OBJ_XRO_MASK_LOOSE(*obj_tptr) ? "Loose" : "Strict",
725 ipaddr_string(obj_tptr+2),
726 *(obj_tptr+6));
727 }
728 obj_tlen-=*(obj_tptr+1);
729 obj_tptr+=*(obj_tptr+1);
730 }
731 break;
732 default:
733 hexdump=TRUE;
734 }
735 break;
736
737 case RSVP_OBJ_HELLO:
738 switch(rsvp_obj_ctype) {
739 case RSVP_CTYPE_1:
740 case RSVP_CTYPE_2:
741 printf("\n\t Source Instance 0x%08x, Destination Instance 0x%08x",
742 EXTRACT_32BITS(obj_tptr),
743 EXTRACT_32BITS(obj_tptr+4));
744 obj_tlen-=8;
745 obj_tptr+=8;
746 break;
747 default:
748 hexdump=TRUE;
749 }
750 break;
751
752 case RSVP_OBJ_RESTART_CAPABILITY:
753 switch(rsvp_obj_ctype) {
754 case RSVP_CTYPE_1:
755 printf("\n\t Restart Time: %ums\n\t Recovery Time: %ums",
756 EXTRACT_16BITS(obj_tptr),
757 EXTRACT_16BITS(obj_tptr+4));
758 break;
759 default:
760 hexdump=TRUE;
761 }
762 break;
763
764 case RSVP_OBJ_SESSION_ATTRIBUTE:
765 switch(rsvp_obj_ctype) {
766 case RSVP_CTYPE_TUNNEL_IPV4:
767 printf("\n\t Session Name: %s",(obj_tptr+3));
768 printf("\n\t Setup Priority: %u, Holding Priority: %u, Flags: [%s]",
769 (int)*obj_tptr,
770 (int)*(obj_tptr+1),
771 tok2str(rsvp_session_attribute_flag_values,
772 "none",
773 *(obj_tptr+2)));
774
775 obj_tlen-=4+*(obj_tptr+3);
776 obj_tptr+=4+*(obj_tptr+3);
777 break;
778 default:
779 hexdump=TRUE;
780 }
781 break;
782
783 case RSVP_OBJ_RSVP_HOP:
784 switch(rsvp_obj_ctype) {
785 case RSVP_CTYPE_IPV4:
786 printf("\n\t Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
787 ipaddr_string(obj_tptr),
788 EXTRACT_32BITS(obj_tptr+4));
789 obj_tlen-=8;
790 obj_tptr+=8;
791 break;
792 #ifdef INET6
793 case RSVP_CTYPE_IPV6:
794 printf("\n\t Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
795 ip6addr_string(obj_tptr),
796 EXTRACT_32BITS(obj_tptr+16));
797 obj_tlen-=20;
798 obj_tptr+=20;
799 break;
800 #endif
801 default:
802 hexdump=TRUE;
803 }
804 break;
805
806 case RSVP_OBJ_TIME_VALUES:
807 switch(rsvp_obj_ctype) {
808 case RSVP_CTYPE_1:
809 printf("\n\t Refresh Period: %ums",
810 EXTRACT_32BITS(obj_tptr));
811 obj_tlen-=4;
812 obj_tptr+=4;
813 break;
814 default:
815 hexdump=TRUE;
816 }
817 break;
818
819 /* those three objects do share the same semantics */
820 case RSVP_OBJ_SENDER_TSPEC:
821 case RSVP_OBJ_ADSPEC:
822 case RSVP_OBJ_FLOWSPEC:
823 switch(rsvp_obj_ctype) {
824 case RSVP_CTYPE_2:
825 printf("\n\t Msg-Version: %u, length: %u",
826 (*obj_tptr & 0xf0) >> 4,
827 EXTRACT_16BITS(obj_tptr+2)<<2);
828 obj_tptr+=4; /* get to the start of the service header */
829 obj_tlen-=4;
830
831 while (obj_tlen >= 4) {
832 intserv_serv_tlen=EXTRACT_16BITS(obj_tptr+2)<<2;
833 printf("\n\t Service Type: %s (%u), break bit %s set, Service length: %u",
834 tok2str(rsvp_intserv_service_type_values,"unknown",*(obj_tptr)),
835 *(obj_tptr),
836 (*(obj_tptr+1)&0x80) ? "" : "not",
837 intserv_serv_tlen);
838
839 obj_tptr+=4; /* get to the start of the parameter list */
840 obj_tlen-=4;
841
842 while (intserv_serv_tlen>=4) {
843 processed = rsvp_intserv_print(obj_tptr);
844 if (processed == 0)
845 break;
846 obj_tlen-=processed;
847 intserv_serv_tlen-=processed;
848 obj_tptr+=processed;
849 }
850 }
851 break;
852 default:
853 hexdump=TRUE;
854 }
855 break;
856
857 case RSVP_OBJ_FILTERSPEC:
858 switch(rsvp_obj_ctype) {
859 case RSVP_CTYPE_IPV4:
860 printf("\n\t Source Address: %s, Source Port: %u",
861 ipaddr_string(obj_tptr),
862 EXTRACT_16BITS(obj_tptr+6));
863 obj_tlen-=8;
864 obj_tptr+=8;
865 break;
866 #ifdef INET6
867 case RSVP_CTYPE_IPV6:
868 printf("\n\t Source Address: %s, Source Port: %u",
869 ip6addr_string(obj_tptr),
870 EXTRACT_16BITS(obj_tptr+18));
871 obj_tlen-=20;
872 obj_tptr+=20;
873 break;
874 case RSVP_CTYPE_3:
875 printf("\n\t Source Address: %s, Flow Label: %u",
876 ip6addr_string(obj_tptr),
877 EXTRACT_24BITS(obj_tptr+17));
878 obj_tlen-=20;
879 obj_tptr+=20;
880 break;
881 case RSVP_CTYPE_TUNNEL_IPV6:
882 printf("\n\t Source Address: %s, LSP-ID: 0x%04x",
883 ipaddr_string(obj_tptr),
884 EXTRACT_16BITS(obj_tptr+18));
885 obj_tlen-=20;
886 obj_tptr+=20;
887 break;
888 #endif
889 case RSVP_CTYPE_TUNNEL_IPV4:
890 printf("\n\t Source Address: %s, LSP-ID: 0x%04x",
891 ipaddr_string(obj_tptr),
892 EXTRACT_16BITS(obj_tptr+6));
893 obj_tlen-=8;
894 obj_tptr+=8;
895 break;
896 default:
897 hexdump=TRUE;
898 }
899 break;
900
901 case RSVP_OBJ_FASTREROUTE:
902 switch(rsvp_obj_ctype) {
903 case RSVP_CTYPE_TUNNEL_IPV4:
904 bw.i = EXTRACT_32BITS(obj_tptr+4);
905 printf("\n\t Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
906 (int)*obj_tptr,
907 (int)*(obj_tptr+1),
908 (int)*(obj_tptr+2),
909 bw.f*8/1000000);
910 printf("\n\t Include Colors: 0x%08x, Exclude Colors: 0x%08x",
911 EXTRACT_32BITS(obj_tptr+8),
912 EXTRACT_32BITS(obj_tptr+12));
913 obj_tlen-=16;
914 obj_tptr+=16;
915 break;
916 default:
917 hexdump=TRUE;
918 }
919 break;
920
921 case RSVP_OBJ_DETOUR:
922 switch(rsvp_obj_ctype) {
923 case RSVP_CTYPE_TUNNEL_IPV4:
924 while(obj_tlen >= 8) {
925 printf("\n\t PLR-ID: %s, Avoid-Node-ID: %s",
926 ipaddr_string(obj_tptr),
927 ipaddr_string(obj_tptr+4));
928 obj_tlen-=8;
929 obj_tptr+=8;
930 }
931 break;
932 default:
933 hexdump=TRUE;
934 }
935 break;
936
937 case RSVP_OBJ_ERROR_SPEC:
938 switch(rsvp_obj_ctype) {
939 case RSVP_CTYPE_IPV4:
940 error_code=*(obj_tptr+5);
941 error_value=EXTRACT_16BITS(obj_tptr+6);
942 printf("\n\t Error Node Adress: %s, Flags: [0x%02x]\n\t Error Code: %s (%u)",
943 ipaddr_string(obj_tptr),
944 *(obj_tptr+4),
945 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
946 error_code,
947 error_value);
948 switch (error_code) {
949 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
950 printf(", Error Value: %s (%u)",
951 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value));
952 break;
953 default:
954 printf(", Unknown Error Value (%u)");
955 }
956 break;
957 #ifdef INET6
958 case RSVP_CTYPE_IPV6:
959 error_code=*(obj_tptr+17);
960 error_value=EXTRACT_16BITS(obj_tptr+18);
961 printf("\n\t Error Node Adress: %s, Flags: [0x%02x]\n\t Error Code: %s (%u)",
962 ip6addr_string(obj_tptr),
963 *(obj_tptr+16),
964 tok2str(rsvp_obj_error_code_values,"unknown",error_code),
965 error_code,
966 error_value);
967
968 switch (error_code) {
969 case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
970 printf(", Error Value: %s (%u)",
971 tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value));
972 break;
973 default:
974 printf(", Unknown Error Value (%u)");
975 }
976
977 break;
978 #endif
979 default:
980 hexdump=TRUE;
981 }
982 break;
983
984 case RSVP_OBJ_PROPERTIES:
985 switch(rsvp_obj_ctype) {
986 case RSVP_CTYPE_1:
987 padbytes = EXTRACT_16BITS(obj_tptr+2);
988 printf("\n\t TLV count: %u, padding bytes: %u",
989 EXTRACT_16BITS(obj_tptr),
990 padbytes);
991 obj_tlen-=4;
992 obj_tptr+=4;
993 /* loop through as long there is anything longer than the TLV header (2) */
994 while(obj_tlen >= 2 + padbytes) {
995 printf("\n\t %s TLV (0x%02x), length: %u", /* length includes header */
996 tok2str(rsvp_obj_prop_tlv_values,"unknown",*obj_tptr),
997 *obj_tptr,
998 *(obj_tptr+1));
999 print_unknown_data(obj_tptr+2,"\n\t\t",*(obj_tptr+1)-2);
1000 obj_tlen-=*(obj_tptr+1);
1001 obj_tptr+=*(obj_tptr+1);
1002 }
1003 break;
1004 default:
1005 hexdump=TRUE;
1006 }
1007 break;
1008
1009 /*
1010 * FIXME those are the defined objects that lack a decoder
1011 * you are welcome to contribute code ;-)
1012 */
1013
1014 case RSVP_OBJ_INTEGRITY:
1015 case RSVP_OBJ_SCOPE:
1016 case RSVP_OBJ_POLICY_DATA:
1017 case RSVP_OBJ_MESSAGE_ID:
1018 case RSVP_OBJ_MESSAGE_ID_ACK:
1019 case RSVP_OBJ_MESSAGE_ID_LIST:
1020 case RSVP_OBJ_RECOVERY_LABEL:
1021 case RSVP_OBJ_UPSTREAM_LABEL:
1022 case RSVP_OBJ_SUGGESTED_LABEL:
1023 default:
1024 if (vflag <= 1)
1025 print_unknown_data(obj_tptr,"\n\t ",obj_tlen);
1026 break;
1027 }
1028 /* do we want to see an additionally hexdump ? */
1029 if (vflag > 1 || hexdump==TRUE)
1030 print_unknown_data(tptr+sizeof(sizeof(struct rsvp_object_header)),"\n\t ",
1031 rsvp_obj_len-sizeof(struct rsvp_object_header));
1032
1033 tptr+=rsvp_obj_len;
1034 tlen-=rsvp_obj_len;
1035 }
1036 return;
1037 trunc:
1038 printf("\n\t\t packet exceeded snapshot");
1039 }
[mirror] the TCPdump network dissector