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rework of the intserv service type dissector
[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 1.13 2002-12-14 01:38:32 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_TUNNEL_IPV4, "Tunnel IPv4" },
206 { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
207 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
208 { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
209 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
210 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
211 { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
212 { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "1" },
213 { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
214 { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
215 { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
216 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
217 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
218 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
219 { 0, NULL}
220 };
221
222 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
223 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
224
225 #define RSVP_OBJ_XRO_RES 0
226 #define RSVP_OBJ_XRO_IPV4 1
227 #define RSVP_OBJ_XRO_IPV6 2
228 #define RSVP_OBJ_XRO_ASN 32
229 #define RSVP_OBJ_XRO_MPLS 64
230
231 static const struct tok rsvp_obj_xro_values[] = {
232 { RSVP_OBJ_XRO_RES, "Reserved" },
233 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
234 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
235 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
236 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
237 { 0, NULL}
238 };
239
240 static const struct tok rsvp_resstyle_values[] = {
241 { 17, "Wildcard Filter" },
242 { 10, "Fixed Filter" },
243 { 18, "Shared Explicit" },
244 { 0, NULL}
245 };
246
247 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
248 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
249
250 static const struct tok rsvp_intserv_service_type_values[] = {
251 { 1, "Default/Global Information" },
252 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
253 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
254 { 0, NULL}
255 };
256
257 static const struct tok rsvp_intserv_parameter_id_values[] = {
258 { 4, "IS hop cnt" },
259 { 6, "Path b/w estimate" },
260 { 8, "Minimum path latency" },
261 { 10, "Composed MTU" },
262 { 127, "Token Bucket TSpec" },
263 { 130, "Guaranteed Service RSpec" },
264 { 0, NULL}
265 };
266
267 static struct tok rsvp_session_attribute_flag_values[] = {
268 { 1, "Local Protection desired" },
269 { 2, "Label Recording desired" },
270 { 4, "SE Style desired" },
271 { 0, NULL}
272 };
273
274 #define FALSE 0
275 #define TRUE 1
276
277
278 int rsvp_intserv_print(const u_char *);
279
280 /*
281 * this is a dissector for all the intserv defined
282 * specs as defined per rfc2215
283 * it is called from various rsvp objects;
284 * returns the amount of bytes being processed
285 */
286 int
287 rsvp_intserv_print(const u_char *tptr) {
288
289 int parameter_id,parameter_length;
290 union {
291 float f;
292 u_int32_t i;
293 } bw;
294
295 parameter_id = *(tptr);
296 parameter_length = EXTRACT_16BITS(tptr+2)<<2; /* convert wordcount to bytecount */
297
298 printf("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
299 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
300 parameter_id,
301 parameter_length,
302 *(tptr+1));
303
304 switch(parameter_id) { /* parameter_id */
305
306 case 4:
307 /*
308 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
309 * | 4 (e) | (f) | 1 (g) |
310 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
311 * | IS hop cnt (32-bit unsigned integer) |
312 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
313 */
314 printf("\n\t\tIS hop cnt: %u", EXTRACT_32BITS(tptr+4));
315 break;
316
317 case 6:
318 /*
319 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
320 * | 6 (h) | (i) | 1 (j) |
321 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
322 * | Path b/w estimate (32-bit IEEE floating point number) |
323 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
324 */
325 bw.i = EXTRACT_32BITS(tptr+4);
326 printf("\n\t\tPath b/w estimate: %.10g Mbps", bw.f/125000);
327 break;
328
329 case 8:
330 /*
331 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
332 * | 8 (k) | (l) | 1 (m) |
333 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
334 * | Minimum path latency (32-bit integer) |
335 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
336 */
337 printf("\n\t\tMinimum path latency: ");
338 if (EXTRACT_32BITS(tptr+4) == 0xffffffff)
339 printf("don't care");
340 else
341 printf("%u", EXTRACT_32BITS(tptr+4));
342 break;
343
344 case 10:
345
346 /*
347 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
348 * | 10 (n) | (o) | 1 (p) |
349 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
350 * | Composed MTU (32-bit unsigned integer) |
351 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
352 */
353 printf("\n\t\tComposed MTU: %u bytes", EXTRACT_32BITS(tptr+4));
354 break;
355 case 127:
356 /*
357 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
358 * | 127 (e) | 0 (f) | 5 (g) |
359 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
360 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
361 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
362 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
363 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
364 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
365 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
366 * | Minimum Policed Unit [m] (32-bit integer) |
367 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
368 * | Maximum Packet Size [M] (32-bit integer) |
369 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
370 */
371
372 bw.i = EXTRACT_32BITS(tptr+4);
373 printf("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f/125000);
374 bw.i = EXTRACT_32BITS(tptr+8);
375 printf("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
376 bw.i = EXTRACT_32BITS(tptr+12);
377 printf("\n\t\tPeak Data Rate: %.10g Mbps", bw.f/125000);
378 printf("\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_32BITS(tptr+16));
379 printf("\n\t\tMaximum Packet Size: %u bytes", EXTRACT_32BITS(tptr+20));
380 break;
381
382 case 130:
383 /*
384 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
385 * | 130 (h) | 0 (i) | 2 (j) |
386 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
387 * | Rate [R] (32-bit IEEE floating point number) |
388 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
389 * | Slack Term [S] (32-bit integer) |
390 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
391 */
392
393 bw.i = EXTRACT_32BITS(tptr+4);
394 printf("\n\t\tRate: %.10g Mbps", bw.f/125000);
395 printf("\n\t\tSlack Term: %u", EXTRACT_32BITS(tptr+8));
396 break;
397 /*
398 * FIXME those are the defined paramters that lack a decoder
399 * you are welcome to contribute code ;-)
400 */
401 case 133:
402 case 134:
403 case 135:
404 case 136:
405
406 default:
407 if (vflag <= 1)
408 print_unknown_data(tptr+4,"\n\t\t",parameter_length);
409 }
410 return (parameter_length+4); /* header length 4 bytes */
411 }
412
413 void
414 rsvp_print(register const u_char *pptr, register u_int len) {
415
416 const struct rsvp_common_header *rsvp_com_header;
417 const struct rsvp_object_header *rsvp_obj_header;
418 const u_char *tptr,*obj_tptr;
419 u_short tlen,rsvp_obj_len,rsvp_obj_ctype,obj_tlen,intserv_serv_tlen;
420 int hexdump,processed;
421 union {
422 float f;
423 u_int32_t i;
424 } bw;
425
426 tptr=pptr;
427 rsvp_com_header = (const struct rsvp_common_header *)pptr;
428 TCHECK(*rsvp_com_header);
429
430 /*
431 * Sanity checking of the header.
432 */
433 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
434 printf("RSVP version %u packet not supported",
435 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags));
436 return;
437 }
438
439 /* in non-verbose mode just lets print the basic Message Type*/
440 if (vflag < 1) {
441 printf("RSVP %s Message, length: %u",
442 tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
443 len);
444 return;
445 }
446
447 /* ok they seem to want to know everything - lets fully decode it */
448
449 tlen=EXTRACT_16BITS(rsvp_com_header->length);
450
451 printf("RSVP\n\tv: %u, msg-type: %s, length: %u, ttl: %u, checksum: 0x%04x",
452 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
453 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
454 tlen,
455 rsvp_com_header->ttl,
456 EXTRACT_16BITS(rsvp_com_header->checksum));
457
458 tptr+=sizeof(const struct rsvp_common_header);
459 tlen-=sizeof(const struct rsvp_common_header);
460
461 while(tlen>0) {
462 /* did we capture enough for fully decoding the object header ? */
463 if (!TTEST2(*tptr, sizeof(struct rsvp_object_header)))
464 goto trunc;
465
466 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
467 rsvp_obj_len=EXTRACT_16BITS(rsvp_obj_header->length);
468 rsvp_obj_ctype=rsvp_obj_header->ctype;
469
470 if(rsvp_obj_len % 4 || rsvp_obj_len < 4)
471 return;
472
473 printf("\n\t %s Object (%u) Flags: [%s",
474 tok2str(rsvp_obj_values,
475 "Unknown",
476 rsvp_obj_header->class_num),
477 rsvp_obj_header->class_num,
478 ((rsvp_obj_header->class_num)&0x80) ? "ignore" : "reject");
479
480 if (rsvp_obj_header->class_num > 128)
481 printf(" %s",
482 ((rsvp_obj_header->class_num)&0x40) ? "and forward" : "silently");
483
484 printf(" if unknown], Class-Type: %s (%u), length: %u",
485 tok2str(rsvp_ctype_values,
486 "Unknown",
487 ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
488 rsvp_obj_ctype,
489 rsvp_obj_len);
490
491 obj_tptr=tptr+sizeof(struct rsvp_object_header);
492 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
493
494 /* did we capture enough for fully decoding the object ? */
495 if (!TTEST2(*tptr, rsvp_obj_len))
496 goto trunc;
497 hexdump=FALSE;
498
499 switch(rsvp_obj_header->class_num) {
500 case RSVP_OBJ_SESSION:
501 switch(rsvp_obj_ctype) {
502 case RSVP_CTYPE_IPV4:
503 printf("\n\t IPv4 DestAddress: %s, Protocol ID: 0x%02x",
504 ipaddr_string(obj_tptr),
505 *(obj_tptr+4));
506 printf("\n\t Flags: [0x%02x], DestPort %u",
507 *(obj_tptr+5),
508 EXTRACT_16BITS(obj_tptr+6));
509 obj_tlen-=8;
510 obj_tptr+=8;
511 break;
512 #ifdef INET6
513 case RSVP_CTYPE_IPV6:
514 printf("\n\t IPv6 DestAddress: %s, Protocol ID: 0x%02x",
515 ip6addr_string(obj_tptr),
516 *(obj_tptr+16));
517 printf("\n\t Flags: [0x%02x], DestPort %u",
518 *(obj_tptr+17),
519 EXTRACT_16BITS(obj_tptr+18));
520 obj_tlen-=20;
521 obj_tptr+=20;
522 break;
523
524 case RSVP_CTYPE_TUNNEL_IPV6:
525 printf("\n\t IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
526 ip6addr_string(obj_tptr),
527 EXTRACT_16BITS(obj_tptr+18),
528 ip6addr_string(obj_tptr+20));
529 obj_tlen-=36;
530 obj_tptr+=36;
531 break;
532 #endif
533 case RSVP_CTYPE_TUNNEL_IPV4:
534 printf("\n\t IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
535 ipaddr_string(obj_tptr),
536 EXTRACT_16BITS(obj_tptr+6),
537 ipaddr_string(obj_tptr+8));
538 obj_tlen-=12;
539 obj_tptr+=12;
540 break;
541 default:
542 hexdump=TRUE;
543 }
544 break;
545
546 case RSVP_OBJ_CONFIRM:
547 switch(rsvp_obj_ctype) {
548 case RSVP_CTYPE_IPV4:
549 printf("\n\t IPv4 ReceiverAddress: %s",
550 ipaddr_string(obj_tptr));
551 obj_tlen-=4;
552 obj_tptr+=4;
553 break;
554 #ifdef INET6
555 case RSVP_CTYPE_IPV6:
556 printf("\n\t IPv6 ReceiverAddress: %s",
557 ip6addr_string(obj_tptr));
558 obj_tlen-=16;
559 obj_tptr+=16;
560 break;
561 #endif
562 default:
563 hexdump=TRUE;
564 }
565 break;
566
567 case RSVP_OBJ_LABEL:
568 switch(rsvp_obj_ctype) {
569 case RSVP_CTYPE_1:
570 while(obj_tlen >= 4 ) {
571 printf("\n\t Label: %u", EXTRACT_32BITS(obj_tptr));
572 obj_tlen-=4;
573 obj_tptr+=4;
574 }
575 break;
576 default:
577 hexdump=TRUE;
578 }
579 break;
580
581 case RSVP_OBJ_STYLE:
582 switch(rsvp_obj_ctype) {
583 case RSVP_CTYPE_1:
584 printf("\n\t Reservation Style: %s, Flags: [0x%02x]",
585 tok2str(rsvp_resstyle_values,
586 "Unknown",
587 EXTRACT_24BITS(obj_tptr+1)),
588 *(obj_tptr));
589 obj_tlen-=4;
590 obj_tptr+=4;
591 break;
592 default:
593 hexdump=TRUE;
594 }
595 break;
596
597 case RSVP_OBJ_SENDER_TEMPLATE:
598 switch(rsvp_obj_ctype) {
599 case RSVP_CTYPE_TUNNEL_IPV4:
600 printf("\n\t IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
601 ipaddr_string(obj_tptr),
602 EXTRACT_16BITS(obj_tptr+6));
603 obj_tlen-=8;
604 obj_tptr+=8;
605 break;
606 default:
607 hexdump=TRUE;
608 }
609 break;
610
611 case RSVP_OBJ_LABEL_REQ:
612 switch(rsvp_obj_ctype) {
613 case RSVP_CTYPE_1:
614 while(obj_tlen >= 4 ) {
615 printf("\n\t L3 Protocol ID: %s",
616 tok2str(ethertype_values,
617 "Unknown Protocol 0x%04x",
618 EXTRACT_16BITS(obj_tptr+2)));
619 obj_tlen-=4;
620 obj_tptr+=4;
621 }
622 break;
623 case RSVP_CTYPE_2:
624 printf("\n\t L3 Protocol ID: %s",
625 tok2str(ethertype_values,
626 "Unknown Protocol 0x%04x",
627 EXTRACT_16BITS(obj_tptr+2)));
628 printf(",%s merge capability",((*(obj_tptr+4))&0x80) ? "no" : "" );
629 printf("\n\t Minimum VPI/VCI %u/%u",
630 (EXTRACT_16BITS(obj_tptr+4))&0xfff,
631 (EXTRACT_16BITS(obj_tptr+6))&0xfff);
632 printf("\n\t Maximum VPI/VCI %u/%u",
633 (EXTRACT_16BITS(obj_tptr+8))&0xfff,
634 (EXTRACT_16BITS(obj_tptr+10))&0xfff);
635 obj_tlen-=12;
636 obj_tptr+=12;
637 break;
638 case RSVP_CTYPE_3:
639 printf("\n\t L3 Protocol ID: %s",
640 tok2str(ethertype_values,
641 "Unknown Protocol 0x%04x",
642 EXTRACT_16BITS(obj_tptr+2)));
643 printf("\n\t Minimum/Maximum DLCI %u/%u, %s%s bit DLCI",
644 (EXTRACT_32BITS(obj_tptr+4))&0x7fffff,
645 (EXTRACT_32BITS(obj_tptr+8))&0x7fffff,
646 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 0 ) ? "10" : "",
647 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 2 ) ? "23" : "");
648 obj_tlen-=12;
649 obj_tptr+=12;
650 break;
651 default:
652 hexdump=TRUE;
653 }
654 break;
655
656 case RSVP_OBJ_RRO:
657 case RSVP_OBJ_ERO:
658 switch(rsvp_obj_ctype) {
659 case RSVP_CTYPE_IPV4:
660 while(obj_tlen >= 4 ) {
661 printf("\n\t Subobject Type: %s",
662 tok2str(rsvp_obj_xro_values,
663 "Unknown %u",
664 RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)));
665 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)) {
666 case RSVP_OBJ_XRO_IPV4:
667 printf(", %s, %s/%u",
668 RSVP_OBJ_XRO_MASK_LOOSE(*obj_tptr) ? "Loose" : "Strict",
669 ipaddr_string(obj_tptr+2),
670 *(obj_tptr+6));
671 }
672 obj_tlen-=*(obj_tptr+1);
673 obj_tptr+=*(obj_tptr+1);
674 }
675 break;
676 default:
677 hexdump=TRUE;
678 }
679 break;
680
681 case RSVP_OBJ_HELLO:
682 switch(rsvp_obj_ctype) {
683 case RSVP_CTYPE_1:
684 case RSVP_CTYPE_2:
685 printf("\n\t Source Instance 0x%08x, Destination Instance 0x%08x",
686 EXTRACT_32BITS(obj_tptr),
687 EXTRACT_32BITS(obj_tptr+4));
688 obj_tlen-=8;
689 obj_tptr+=8;
690 break;
691 default:
692 hexdump=TRUE;
693 }
694 break;
695
696 case RSVP_OBJ_RESTART_CAPABILITY:
697 switch(rsvp_obj_ctype) {
698 case RSVP_CTYPE_1:
699 printf("\n\t Restart Time: %ums\n\t Recovery Time: %ums",
700 EXTRACT_16BITS(obj_tptr),
701 EXTRACT_16BITS(obj_tptr+4));
702 break;
703 default:
704 hexdump=TRUE;
705 }
706 break;
707
708 case RSVP_OBJ_SESSION_ATTRIBUTE:
709 switch(rsvp_obj_ctype) {
710 case RSVP_CTYPE_TUNNEL_IPV4:
711 printf("\n\t Session Name: %s",(obj_tptr+3));
712 printf("\n\t Setup Priority: %u, Holding Priority: %u, Flags: [%s]",
713 (int)*obj_tptr,
714 (int)*(obj_tptr+1),
715 tok2str(rsvp_session_attribute_flag_values,
716 "none",
717 *(obj_tptr+2)));
718
719 obj_tlen-=4+*(obj_tptr+3);
720 obj_tptr+=4+*(obj_tptr+3);
721 break;
722 default:
723 hexdump=TRUE;
724 }
725 break;
726
727 case RSVP_OBJ_RSVP_HOP:
728 switch(rsvp_obj_ctype) {
729 case RSVP_CTYPE_IPV4:
730 printf("\n\t Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
731 ipaddr_string(obj_tptr),
732 EXTRACT_32BITS(obj_tptr+4));
733 obj_tlen-=8;
734 obj_tptr+=8;
735 break;
736 #ifdef INET6
737 case RSVP_CTYPE_IPV6:
738 printf("\n\t Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
739 ip6addr_string(obj_tptr),
740 EXTRACT_32BITS(obj_tptr+16));
741 obj_tlen-=20;
742 obj_tptr+=20;
743 break;
744 #endif
745 default:
746 hexdump=TRUE;
747 }
748 break;
749
750 case RSVP_OBJ_TIME_VALUES:
751 switch(rsvp_obj_ctype) {
752 case RSVP_CTYPE_1:
753 printf("\n\t Refresh Period: %ums",
754 EXTRACT_32BITS(obj_tptr));
755 obj_tlen-=4;
756 obj_tptr+=4;
757 break;
758 default:
759 hexdump=TRUE;
760 }
761 break;
762
763 /* those three objects do share the same semantics */
764 case RSVP_OBJ_SENDER_TSPEC:
765 case RSVP_OBJ_ADSPEC:
766 case RSVP_OBJ_FLOWSPEC:
767 switch(rsvp_obj_ctype) {
768 case RSVP_CTYPE_2:
769 printf("\n\t Msg-Version: %u, length: %u",
770 (*obj_tptr & 0xf0) >> 4,
771 EXTRACT_16BITS(obj_tptr+2)<<2);
772 obj_tptr+=4; /* get to the start of the service header */
773 obj_tlen-=4;
774
775 while (obj_tlen >= 8) {
776 intserv_serv_tlen=EXTRACT_16BITS(obj_tptr+2)<<2;
777 printf("\n\t Service Type: %s (%u), Service length: %u",
778 tok2str(rsvp_intserv_service_type_values,"unknown",*(obj_tptr)),
779 *(obj_tptr),
780 intserv_serv_tlen);
781
782 obj_tptr+=4; /* get to the start of the parameter list */
783 obj_tlen-=4;
784
785 while (intserv_serv_tlen>=4) {
786 processed = rsvp_intserv_print(obj_tptr);
787 if (processed == 0)
788 break;
789 obj_tlen-=processed;
790 intserv_serv_tlen-=processed;
791 obj_tptr+=processed;
792 }
793 }
794 break;
795 default:
796 hexdump=TRUE;
797 }
798 break;
799
800 case RSVP_OBJ_FILTERSPEC:
801 switch(rsvp_obj_ctype) {
802 case RSVP_CTYPE_IPV4:
803 printf("\n\t Source Address: %s, Source Port: %u",
804 ipaddr_string(obj_tptr),
805 EXTRACT_16BITS(obj_tptr+6));
806 obj_tlen-=8;
807 obj_tptr+=8;
808 break;
809 #ifdef INET6
810 case RSVP_CTYPE_IPV6:
811 printf("\n\t Source Address: %s, Source Port: %u",
812 ip6addr_string(obj_tptr),
813 EXTRACT_16BITS(obj_tptr+18));
814 obj_tlen-=20;
815 obj_tptr+=20;
816 break;
817 case RSVP_CTYPE_3:
818 printf("\n\t Source Address: %s, Flow Label: %u",
819 ip6addr_string(obj_tptr),
820 EXTRACT_24BITS(obj_tptr+17));
821 obj_tlen-=20;
822 obj_tptr+=20;
823 break;
824 case RSVP_CTYPE_TUNNEL_IPV6:
825 printf("\n\t Source Address: %s, LSP-ID: 0x%04x",
826 ipaddr_string(obj_tptr),
827 EXTRACT_16BITS(obj_tptr+18));
828 obj_tlen-=20;
829 obj_tptr+=20;
830 break;
831 #endif
832 case RSVP_CTYPE_TUNNEL_IPV4:
833 printf("\n\t Source Address: %s, LSP-ID: 0x%04x",
834 ipaddr_string(obj_tptr),
835 EXTRACT_16BITS(obj_tptr+6));
836 obj_tlen-=8;
837 obj_tptr+=8;
838 break;
839 default:
840 hexdump=TRUE;
841 }
842 break;
843
844 case RSVP_OBJ_FASTREROUTE:
845 switch(rsvp_obj_ctype) {
846 case RSVP_CTYPE_TUNNEL_IPV4:
847 bw.i = EXTRACT_32BITS(obj_tptr+4);
848 printf("\n\t Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
849 (int)*obj_tptr,
850 (int)*(obj_tptr+1),
851 (int)*(obj_tptr+2),
852 bw.f*8/1000000);
853 printf("\n\t Include Colors: 0x%08x, Exclude Colors: 0x%08x",
854 EXTRACT_32BITS(obj_tptr+8),
855 EXTRACT_32BITS(obj_tptr+12));
856 obj_tlen-=16;
857 obj_tptr+=16;
858 break;
859 default:
860 hexdump=TRUE;
861 }
862 break;
863
864 case RSVP_OBJ_DETOUR:
865 switch(rsvp_obj_ctype) {
866 case RSVP_CTYPE_TUNNEL_IPV4:
867 while(obj_tlen >= 8) {
868 printf("\n\t PLR-ID: %s, Avoid-Node-ID: %s",
869 ipaddr_string(obj_tptr),
870 ipaddr_string(obj_tptr+4));
871 obj_tlen-=8;
872 obj_tptr+=8;
873 }
874 break;
875 default:
876 hexdump=TRUE;
877 }
878 break;
879
880 /*
881 * FIXME those are the defined objects that lack a decoder
882 * you are welcome to contribute code ;-)
883 */
884
885 case RSVP_OBJ_INTEGRITY:
886 case RSVP_OBJ_ERROR_SPEC:
887 case RSVP_OBJ_SCOPE:
888 case RSVP_OBJ_POLICY_DATA:
889 case RSVP_OBJ_MESSAGE_ID:
890 case RSVP_OBJ_MESSAGE_ID_ACK:
891 case RSVP_OBJ_MESSAGE_ID_LIST:
892 case RSVP_OBJ_RECOVERY_LABEL:
893 case RSVP_OBJ_UPSTREAM_LABEL:
894 case RSVP_OBJ_SUGGESTED_LABEL:
895 case RSVP_OBJ_PROPERTIES:
896 default:
897 if (vflag <= 1)
898 print_unknown_data(obj_tptr,"\n\t ",obj_tlen);
899 break;
900 }
901 /* do we want to see an additionally hexdump ? */
902 if (vflag > 1 || hexdump==TRUE)
903 print_unknown_data(tptr+sizeof(sizeof(struct rsvp_object_header)),"\n\t ",
904 rsvp_obj_len-sizeof(struct rsvp_object_header));
905
906 tptr+=rsvp_obj_len;
907 tlen-=rsvp_obj_len;
908 }
909 return;
910 trunc:
911 printf("\n\t\t packet exceeded snapshot");
912 }
[mirror] the TCPdump network dissector