]> The Tcpdump Group git mirrors - tcpdump/blob - print-rsvp.c
projects / tcpdump / blob
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
tell that its NTP what we are presenting & cosmetics ...
[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 1.14 2002-12-14 02:03:10 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_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
218 { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
219 { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
220 { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
221 { 0, NULL}
222 };
223
224 #define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
225 #define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
226
227 #define RSVP_OBJ_XRO_RES 0
228 #define RSVP_OBJ_XRO_IPV4 1
229 #define RSVP_OBJ_XRO_IPV6 2
230 #define RSVP_OBJ_XRO_ASN 32
231 #define RSVP_OBJ_XRO_MPLS 64
232
233 static const struct tok rsvp_obj_xro_values[] = {
234 { RSVP_OBJ_XRO_RES, "Reserved" },
235 { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
236 { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
237 { RSVP_OBJ_XRO_ASN, "Autonomous system number" },
238 { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
239 { 0, NULL}
240 };
241
242 static const struct tok rsvp_resstyle_values[] = {
243 { 17, "Wildcard Filter" },
244 { 10, "Fixed Filter" },
245 { 18, "Shared Explicit" },
246 { 0, NULL}
247 };
248
249 #define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
250 #define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
251
252 static const struct tok rsvp_intserv_service_type_values[] = {
253 { 1, "Default/Global Information" },
254 { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
255 { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
256 { 0, NULL}
257 };
258
259 static const struct tok rsvp_intserv_parameter_id_values[] = {
260 { 4, "IS hop cnt" },
261 { 6, "Path b/w estimate" },
262 { 8, "Minimum path latency" },
263 { 10, "Composed MTU" },
264 { 127, "Token Bucket TSpec" },
265 { 130, "Guaranteed Service RSpec" },
266 { 133, "End-to-end composed value for C" },
267 { 134, "End-to-end composed value for D" },
268 { 135, "Since-last-reshaping point composed C" },
269 { 136, "Since-last-reshaping point composed D" },
270 { 0, NULL}
271 };
272
273 static struct tok rsvp_session_attribute_flag_values[] = {
274 { 1, "Local Protection desired" },
275 { 2, "Label Recording desired" },
276 { 4, "SE Style desired" },
277 { 0, NULL}
278 };
279
280 #define FALSE 0
281 #define TRUE 1
282
283
284 int rsvp_intserv_print(const u_char *);
285
286 /*
287 * this is a dissector for all the intserv defined
288 * specs as defined per rfc2215
289 * it is called from various rsvp objects;
290 * returns the amount of bytes being processed
291 */
292 int
293 rsvp_intserv_print(const u_char *tptr) {
294
295 int parameter_id,parameter_length;
296 union {
297 float f;
298 u_int32_t i;
299 } bw;
300
301 parameter_id = *(tptr);
302 parameter_length = EXTRACT_16BITS(tptr+2)<<2; /* convert wordcount to bytecount */
303
304 printf("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
305 tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
306 parameter_id,
307 parameter_length,
308 *(tptr+1));
309
310 switch(parameter_id) { /* parameter_id */
311
312 case 4:
313 /*
314 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
315 * | 4 (e) | (f) | 1 (g) |
316 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
317 * | IS hop cnt (32-bit unsigned integer) |
318 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
319 */
320 printf("\n\t\tIS hop cnt: %u", EXTRACT_32BITS(tptr+4));
321 break;
322
323 case 6:
324 /*
325 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
326 * | 6 (h) | (i) | 1 (j) |
327 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
328 * | Path b/w estimate (32-bit IEEE floating point number) |
329 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
330 */
331 bw.i = EXTRACT_32BITS(tptr+4);
332 printf("\n\t\tPath b/w estimate: %.10g Mbps", bw.f/125000);
333 break;
334
335 case 8:
336 /*
337 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
338 * | 8 (k) | (l) | 1 (m) |
339 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
340 * | Minimum path latency (32-bit integer) |
341 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
342 */
343 printf("\n\t\tMinimum path latency: ");
344 if (EXTRACT_32BITS(tptr+4) == 0xffffffff)
345 printf("don't care");
346 else
347 printf("%u", EXTRACT_32BITS(tptr+4));
348 break;
349
350 case 10:
351
352 /*
353 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
354 * | 10 (n) | (o) | 1 (p) |
355 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
356 * | Composed MTU (32-bit unsigned integer) |
357 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
358 */
359 printf("\n\t\tComposed MTU: %u bytes", EXTRACT_32BITS(tptr+4));
360 break;
361 case 127:
362 /*
363 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
364 * | 127 (e) | 0 (f) | 5 (g) |
365 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
366 * | Token Bucket Rate [r] (32-bit IEEE floating point number) |
367 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
368 * | Token Bucket Size [b] (32-bit IEEE floating point number) |
369 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
370 * | Peak Data Rate [p] (32-bit IEEE floating point number) |
371 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
372 * | Minimum Policed Unit [m] (32-bit integer) |
373 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
374 * | Maximum Packet Size [M] (32-bit integer) |
375 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
376 */
377
378 bw.i = EXTRACT_32BITS(tptr+4);
379 printf("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f/125000);
380 bw.i = EXTRACT_32BITS(tptr+8);
381 printf("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
382 bw.i = EXTRACT_32BITS(tptr+12);
383 printf("\n\t\tPeak Data Rate: %.10g Mbps", bw.f/125000);
384 printf("\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_32BITS(tptr+16));
385 printf("\n\t\tMaximum Packet Size: %u bytes", EXTRACT_32BITS(tptr+20));
386 break;
387
388 case 130:
389 /*
390 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
391 * | 130 (h) | 0 (i) | 2 (j) |
392 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
393 * | Rate [R] (32-bit IEEE floating point number) |
394 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
395 * | Slack Term [S] (32-bit integer) |
396 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
397 */
398
399 bw.i = EXTRACT_32BITS(tptr+4);
400 printf("\n\t\tRate: %.10g Mbps", bw.f/125000);
401 printf("\n\t\tSlack Term: %u", EXTRACT_32BITS(tptr+8));
402 break;
403
404 case 133:
405 case 134:
406 case 135:
407 case 136:
408 printf("\n\t\tValue: %u", EXTRACT_32BITS(tptr+4));
409 break;
410
411 default:
412 if (vflag <= 1)
413 print_unknown_data(tptr+4,"\n\t\t",parameter_length);
414 }
415 return (parameter_length+4); /* header length 4 bytes */
416 }
417
418 void
419 rsvp_print(register const u_char *pptr, register u_int len) {
420
421 const struct rsvp_common_header *rsvp_com_header;
422 const struct rsvp_object_header *rsvp_obj_header;
423 const u_char *tptr,*obj_tptr;
424 u_short tlen,rsvp_obj_len,rsvp_obj_ctype,obj_tlen,intserv_serv_tlen;
425 int hexdump,processed;
426 union {
427 float f;
428 u_int32_t i;
429 } bw;
430
431 tptr=pptr;
432 rsvp_com_header = (const struct rsvp_common_header *)pptr;
433 TCHECK(*rsvp_com_header);
434
435 /*
436 * Sanity checking of the header.
437 */
438 if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
439 printf("RSVP version %u packet not supported",
440 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags));
441 return;
442 }
443
444 /* in non-verbose mode just lets print the basic Message Type*/
445 if (vflag < 1) {
446 printf("RSVP %s Message, length: %u",
447 tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
448 len);
449 return;
450 }
451
452 /* ok they seem to want to know everything - lets fully decode it */
453
454 tlen=EXTRACT_16BITS(rsvp_com_header->length);
455
456 printf("RSVP\n\tv: %u, msg-type: %s, length: %u, ttl: %u, checksum: 0x%04x",
457 RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
458 tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
459 tlen,
460 rsvp_com_header->ttl,
461 EXTRACT_16BITS(rsvp_com_header->checksum));
462
463 tptr+=sizeof(const struct rsvp_common_header);
464 tlen-=sizeof(const struct rsvp_common_header);
465
466 while(tlen>0) {
467 /* did we capture enough for fully decoding the object header ? */
468 if (!TTEST2(*tptr, sizeof(struct rsvp_object_header)))
469 goto trunc;
470
471 rsvp_obj_header = (const struct rsvp_object_header *)tptr;
472 rsvp_obj_len=EXTRACT_16BITS(rsvp_obj_header->length);
473 rsvp_obj_ctype=rsvp_obj_header->ctype;
474
475 if(rsvp_obj_len % 4 || rsvp_obj_len < 4)
476 return;
477
478 printf("\n\t %s Object (%u) Flags: [%s",
479 tok2str(rsvp_obj_values,
480 "Unknown",
481 rsvp_obj_header->class_num),
482 rsvp_obj_header->class_num,
483 ((rsvp_obj_header->class_num)&0x80) ? "ignore" : "reject");
484
485 if (rsvp_obj_header->class_num > 128)
486 printf(" %s",
487 ((rsvp_obj_header->class_num)&0x40) ? "and forward" : "silently");
488
489 printf(" if unknown], Class-Type: %s (%u), length: %u",
490 tok2str(rsvp_ctype_values,
491 "Unknown",
492 ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
493 rsvp_obj_ctype,
494 rsvp_obj_len);
495
496 obj_tptr=tptr+sizeof(struct rsvp_object_header);
497 obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
498
499 /* did we capture enough for fully decoding the object ? */
500 if (!TTEST2(*tptr, rsvp_obj_len))
501 goto trunc;
502 hexdump=FALSE;
503
504 switch(rsvp_obj_header->class_num) {
505 case RSVP_OBJ_SESSION:
506 switch(rsvp_obj_ctype) {
507 case RSVP_CTYPE_IPV4:
508 printf("\n\t IPv4 DestAddress: %s, Protocol ID: 0x%02x",
509 ipaddr_string(obj_tptr),
510 *(obj_tptr+4));
511 printf("\n\t Flags: [0x%02x], DestPort %u",
512 *(obj_tptr+5),
513 EXTRACT_16BITS(obj_tptr+6));
514 obj_tlen-=8;
515 obj_tptr+=8;
516 break;
517 #ifdef INET6
518 case RSVP_CTYPE_IPV6:
519 printf("\n\t IPv6 DestAddress: %s, Protocol ID: 0x%02x",
520 ip6addr_string(obj_tptr),
521 *(obj_tptr+16));
522 printf("\n\t Flags: [0x%02x], DestPort %u",
523 *(obj_tptr+17),
524 EXTRACT_16BITS(obj_tptr+18));
525 obj_tlen-=20;
526 obj_tptr+=20;
527 break;
528
529 case RSVP_CTYPE_TUNNEL_IPV6:
530 printf("\n\t IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
531 ip6addr_string(obj_tptr),
532 EXTRACT_16BITS(obj_tptr+18),
533 ip6addr_string(obj_tptr+20));
534 obj_tlen-=36;
535 obj_tptr+=36;
536 break;
537 #endif
538 case RSVP_CTYPE_TUNNEL_IPV4:
539 printf("\n\t IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
540 ipaddr_string(obj_tptr),
541 EXTRACT_16BITS(obj_tptr+6),
542 ipaddr_string(obj_tptr+8));
543 obj_tlen-=12;
544 obj_tptr+=12;
545 break;
546 default:
547 hexdump=TRUE;
548 }
549 break;
550
551 case RSVP_OBJ_CONFIRM:
552 switch(rsvp_obj_ctype) {
553 case RSVP_CTYPE_IPV4:
554 printf("\n\t IPv4 ReceiverAddress: %s",
555 ipaddr_string(obj_tptr));
556 obj_tlen-=4;
557 obj_tptr+=4;
558 break;
559 #ifdef INET6
560 case RSVP_CTYPE_IPV6:
561 printf("\n\t IPv6 ReceiverAddress: %s",
562 ip6addr_string(obj_tptr));
563 obj_tlen-=16;
564 obj_tptr+=16;
565 break;
566 #endif
567 default:
568 hexdump=TRUE;
569 }
570 break;
571
572 case RSVP_OBJ_LABEL:
573 switch(rsvp_obj_ctype) {
574 case RSVP_CTYPE_1:
575 while(obj_tlen >= 4 ) {
576 printf("\n\t Label: %u", EXTRACT_32BITS(obj_tptr));
577 obj_tlen-=4;
578 obj_tptr+=4;
579 }
580 break;
581 default:
582 hexdump=TRUE;
583 }
584 break;
585
586 case RSVP_OBJ_STYLE:
587 switch(rsvp_obj_ctype) {
588 case RSVP_CTYPE_1:
589 printf("\n\t Reservation Style: %s, Flags: [0x%02x]",
590 tok2str(rsvp_resstyle_values,
591 "Unknown",
592 EXTRACT_24BITS(obj_tptr+1)),
593 *(obj_tptr));
594 obj_tlen-=4;
595 obj_tptr+=4;
596 break;
597 default:
598 hexdump=TRUE;
599 }
600 break;
601
602 case RSVP_OBJ_SENDER_TEMPLATE:
603 switch(rsvp_obj_ctype) {
604 case RSVP_CTYPE_IPV4:
605 printf("\n\t Source Address: %s, Source Port: %u",
606 ipaddr_string(obj_tptr),
607 EXTRACT_16BITS(obj_tptr+6));
608 obj_tlen-=8;
609 obj_tptr+=8;
610 break;
611 #ifdef INET6
612 case RSVP_CTYPE_IPV6:
613 printf("\n\t Source Address: %s, Source Port: %u",
614 ip6addr_string(obj_tptr),
615 EXTRACT_16BITS(obj_tptr+18));
616 obj_tlen-=20;
617 obj_tptr+=20;
618 break;
619 #endif
620 case RSVP_CTYPE_TUNNEL_IPV4:
621 printf("\n\t IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
622 ipaddr_string(obj_tptr),
623 EXTRACT_16BITS(obj_tptr+6));
624 obj_tlen-=8;
625 obj_tptr+=8;
626 break;
627 default:
628 hexdump=TRUE;
629 }
630 break;
631
632 case RSVP_OBJ_LABEL_REQ:
633 switch(rsvp_obj_ctype) {
634 case RSVP_CTYPE_1:
635 while(obj_tlen >= 4 ) {
636 printf("\n\t L3 Protocol ID: %s",
637 tok2str(ethertype_values,
638 "Unknown Protocol 0x%04x",
639 EXTRACT_16BITS(obj_tptr+2)));
640 obj_tlen-=4;
641 obj_tptr+=4;
642 }
643 break;
644 case RSVP_CTYPE_2:
645 printf("\n\t L3 Protocol ID: %s",
646 tok2str(ethertype_values,
647 "Unknown Protocol 0x%04x",
648 EXTRACT_16BITS(obj_tptr+2)));
649 printf(",%s merge capability",((*(obj_tptr+4))&0x80) ? "no" : "" );
650 printf("\n\t Minimum VPI/VCI %u/%u",
651 (EXTRACT_16BITS(obj_tptr+4))&0xfff,
652 (EXTRACT_16BITS(obj_tptr+6))&0xfff);
653 printf("\n\t Maximum VPI/VCI %u/%u",
654 (EXTRACT_16BITS(obj_tptr+8))&0xfff,
655 (EXTRACT_16BITS(obj_tptr+10))&0xfff);
656 obj_tlen-=12;
657 obj_tptr+=12;
658 break;
659 case RSVP_CTYPE_3:
660 printf("\n\t L3 Protocol ID: %s",
661 tok2str(ethertype_values,
662 "Unknown Protocol 0x%04x",
663 EXTRACT_16BITS(obj_tptr+2)));
664 printf("\n\t Minimum/Maximum DLCI %u/%u, %s%s bit DLCI",
665 (EXTRACT_32BITS(obj_tptr+4))&0x7fffff,
666 (EXTRACT_32BITS(obj_tptr+8))&0x7fffff,
667 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 0 ) ? "10" : "",
668 (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 2 ) ? "23" : "");
669 obj_tlen-=12;
670 obj_tptr+=12;
671 break;
672 default:
673 hexdump=TRUE;
674 }
675 break;
676
677 case RSVP_OBJ_RRO:
678 case RSVP_OBJ_ERO:
679 switch(rsvp_obj_ctype) {
680 case RSVP_CTYPE_IPV4:
681 while(obj_tlen >= 4 ) {
682 printf("\n\t Subobject Type: %s",
683 tok2str(rsvp_obj_xro_values,
684 "Unknown %u",
685 RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)));
686 switch(RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)) {
687 case RSVP_OBJ_XRO_IPV4:
688 printf(", %s, %s/%u",
689 RSVP_OBJ_XRO_MASK_LOOSE(*obj_tptr) ? "Loose" : "Strict",
690 ipaddr_string(obj_tptr+2),
691 *(obj_tptr+6));
692 }
693 obj_tlen-=*(obj_tptr+1);
694 obj_tptr+=*(obj_tptr+1);
695 }
696 break;
697 default:
698 hexdump=TRUE;
699 }
700 break;
701
702 case RSVP_OBJ_HELLO:
703 switch(rsvp_obj_ctype) {
704 case RSVP_CTYPE_1:
705 case RSVP_CTYPE_2:
706 printf("\n\t Source Instance 0x%08x, Destination Instance 0x%08x",
707 EXTRACT_32BITS(obj_tptr),
708 EXTRACT_32BITS(obj_tptr+4));
709 obj_tlen-=8;
710 obj_tptr+=8;
711 break;
712 default:
713 hexdump=TRUE;
714 }
715 break;
716
717 case RSVP_OBJ_RESTART_CAPABILITY:
718 switch(rsvp_obj_ctype) {
719 case RSVP_CTYPE_1:
720 printf("\n\t Restart Time: %ums\n\t Recovery Time: %ums",
721 EXTRACT_16BITS(obj_tptr),
722 EXTRACT_16BITS(obj_tptr+4));
723 break;
724 default:
725 hexdump=TRUE;
726 }
727 break;
728
729 case RSVP_OBJ_SESSION_ATTRIBUTE:
730 switch(rsvp_obj_ctype) {
731 case RSVP_CTYPE_TUNNEL_IPV4:
732 printf("\n\t Session Name: %s",(obj_tptr+3));
733 printf("\n\t Setup Priority: %u, Holding Priority: %u, Flags: [%s]",
734 (int)*obj_tptr,
735 (int)*(obj_tptr+1),
736 tok2str(rsvp_session_attribute_flag_values,
737 "none",
738 *(obj_tptr+2)));
739
740 obj_tlen-=4+*(obj_tptr+3);
741 obj_tptr+=4+*(obj_tptr+3);
742 break;
743 default:
744 hexdump=TRUE;
745 }
746 break;
747
748 case RSVP_OBJ_RSVP_HOP:
749 switch(rsvp_obj_ctype) {
750 case RSVP_CTYPE_IPV4:
751 printf("\n\t Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
752 ipaddr_string(obj_tptr),
753 EXTRACT_32BITS(obj_tptr+4));
754 obj_tlen-=8;
755 obj_tptr+=8;
756 break;
757 #ifdef INET6
758 case RSVP_CTYPE_IPV6:
759 printf("\n\t Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
760 ip6addr_string(obj_tptr),
761 EXTRACT_32BITS(obj_tptr+16));
762 obj_tlen-=20;
763 obj_tptr+=20;
764 break;
765 #endif
766 default:
767 hexdump=TRUE;
768 }
769 break;
770
771 case RSVP_OBJ_TIME_VALUES:
772 switch(rsvp_obj_ctype) {
773 case RSVP_CTYPE_1:
774 printf("\n\t Refresh Period: %ums",
775 EXTRACT_32BITS(obj_tptr));
776 obj_tlen-=4;
777 obj_tptr+=4;
778 break;
779 default:
780 hexdump=TRUE;
781 }
782 break;
783
784 /* those three objects do share the same semantics */
785 case RSVP_OBJ_SENDER_TSPEC:
786 case RSVP_OBJ_ADSPEC:
787 case RSVP_OBJ_FLOWSPEC:
788 switch(rsvp_obj_ctype) {
789 case RSVP_CTYPE_2:
790 printf("\n\t Msg-Version: %u, length: %u",
791 (*obj_tptr & 0xf0) >> 4,
792 EXTRACT_16BITS(obj_tptr+2)<<2);
793 obj_tptr+=4; /* get to the start of the service header */
794 obj_tlen-=4;
795
796 while (obj_tlen >= 4) {
797 intserv_serv_tlen=EXTRACT_16BITS(obj_tptr+2)<<2;
798 printf("\n\t Service Type: %s (%u), break bit %s set, Service length: %u",
799 tok2str(rsvp_intserv_service_type_values,"unknown",*(obj_tptr)),
800 *(obj_tptr),
801 (*(obj_tptr+1)&0x80) ? "" : "not",
802 intserv_serv_tlen);
803
804 obj_tptr+=4; /* get to the start of the parameter list */
805 obj_tlen-=4;
806
807 while (intserv_serv_tlen>=4) {
808 processed = rsvp_intserv_print(obj_tptr);
809 if (processed == 0)
810 break;
811 obj_tlen-=processed;
812 intserv_serv_tlen-=processed;
813 obj_tptr+=processed;
814 }
815 }
816 break;
817 default:
818 hexdump=TRUE;
819 }
820 break;
821
822 case RSVP_OBJ_FILTERSPEC:
823 switch(rsvp_obj_ctype) {
824 case RSVP_CTYPE_IPV4:
825 printf("\n\t Source Address: %s, Source Port: %u",
826 ipaddr_string(obj_tptr),
827 EXTRACT_16BITS(obj_tptr+6));
828 obj_tlen-=8;
829 obj_tptr+=8;
830 break;
831 #ifdef INET6
832 case RSVP_CTYPE_IPV6:
833 printf("\n\t Source Address: %s, Source Port: %u",
834 ip6addr_string(obj_tptr),
835 EXTRACT_16BITS(obj_tptr+18));
836 obj_tlen-=20;
837 obj_tptr+=20;
838 break;
839 case RSVP_CTYPE_3:
840 printf("\n\t Source Address: %s, Flow Label: %u",
841 ip6addr_string(obj_tptr),
842 EXTRACT_24BITS(obj_tptr+17));
843 obj_tlen-=20;
844 obj_tptr+=20;
845 break;
846 case RSVP_CTYPE_TUNNEL_IPV6:
847 printf("\n\t Source Address: %s, LSP-ID: 0x%04x",
848 ipaddr_string(obj_tptr),
849 EXTRACT_16BITS(obj_tptr+18));
850 obj_tlen-=20;
851 obj_tptr+=20;
852 break;
853 #endif
854 case RSVP_CTYPE_TUNNEL_IPV4:
855 printf("\n\t Source Address: %s, LSP-ID: 0x%04x",
856 ipaddr_string(obj_tptr),
857 EXTRACT_16BITS(obj_tptr+6));
858 obj_tlen-=8;
859 obj_tptr+=8;
860 break;
861 default:
862 hexdump=TRUE;
863 }
864 break;
865
866 case RSVP_OBJ_FASTREROUTE:
867 switch(rsvp_obj_ctype) {
868 case RSVP_CTYPE_TUNNEL_IPV4:
869 bw.i = EXTRACT_32BITS(obj_tptr+4);
870 printf("\n\t Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
871 (int)*obj_tptr,
872 (int)*(obj_tptr+1),
873 (int)*(obj_tptr+2),
874 bw.f*8/1000000);
875 printf("\n\t Include Colors: 0x%08x, Exclude Colors: 0x%08x",
876 EXTRACT_32BITS(obj_tptr+8),
877 EXTRACT_32BITS(obj_tptr+12));
878 obj_tlen-=16;
879 obj_tptr+=16;
880 break;
881 default:
882 hexdump=TRUE;
883 }
884 break;
885
886 case RSVP_OBJ_DETOUR:
887 switch(rsvp_obj_ctype) {
888 case RSVP_CTYPE_TUNNEL_IPV4:
889 while(obj_tlen >= 8) {
890 printf("\n\t PLR-ID: %s, Avoid-Node-ID: %s",
891 ipaddr_string(obj_tptr),
892 ipaddr_string(obj_tptr+4));
893 obj_tlen-=8;
894 obj_tptr+=8;
895 }
896 break;
897 default:
898 hexdump=TRUE;
899 }
900 break;
901
902 /*
903 * FIXME those are the defined objects that lack a decoder
904 * you are welcome to contribute code ;-)
905 */
906
907 case RSVP_OBJ_INTEGRITY:
908 case RSVP_OBJ_ERROR_SPEC:
909 case RSVP_OBJ_SCOPE:
910 case RSVP_OBJ_POLICY_DATA:
911 case RSVP_OBJ_MESSAGE_ID:
912 case RSVP_OBJ_MESSAGE_ID_ACK:
913 case RSVP_OBJ_MESSAGE_ID_LIST:
914 case RSVP_OBJ_RECOVERY_LABEL:
915 case RSVP_OBJ_UPSTREAM_LABEL:
916 case RSVP_OBJ_SUGGESTED_LABEL:
917 case RSVP_OBJ_PROPERTIES:
918 default:
919 if (vflag <= 1)
920 print_unknown_data(obj_tptr,"\n\t ",obj_tlen);
921 break;
922 }
923 /* do we want to see an additionally hexdump ? */
924 if (vflag > 1 || hexdump==TRUE)
925 print_unknown_data(tptr+sizeof(sizeof(struct rsvp_object_header)),"\n\t ",
926 rsvp_obj_len-sizeof(struct rsvp_object_header));
927
928 tptr+=rsvp_obj_len;
929 tlen-=rsvp_obj_len;
930 }
931 return;
932 trunc:
933 printf("\n\t\t packet exceeded snapshot");
934 }
[mirror] the TCPdump network dissector