1 /*
2 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 */
21
22 /* \summary: Transparent Inter-Process Communication (TIPC) protocol printer */
23
24 /*
25 * specification:
26 * http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html
27 * http://tipc.sourceforge.net/doc/tipc_message_formats.html
28 */
29
30 #ifdef HAVE_CONFIG_H
31 #include "config.h"
32 #endif
33
34 #include <netdissect-stdinc.h>
35
36 #include "netdissect.h"
37 #include "ether.h"
38 #include "ethertype.h"
39 #include "extract.h"
40
41 static const char tstr[] = "[|TIPC]";
42
43 #define TIPC_USER_LOW_IMPORTANCE 0
44 #define TIPC_USER_MEDIUM_IMPORTANCE 1
45 #define TIPC_USER_HIGH_IMPORTANCE 2
46 #define TIPC_USER_CRITICAL_IMPORTANCE 3
47 #define TIPC_USER_BCAST_PROTOCOL 5
48 #define TIPC_USER_MSG_BUNDLER 6
49 #define TIPC_USER_LINK_PROTOCOL 7
50 #define TIPC_USER_CONN_MANAGER 8
51 #define TIPC_USER_CHANGEOVER_PROTOCOL 10
52 #define TIPC_USER_NAME_DISTRIBUTOR 11
53 #define TIPC_USER_MSG_FRAGMENTER 12
54 #define TIPC_USER_LINK_CONFIG 13
55
56 #define TIPC_CONN_MSG 0
57 #define TIPC_DIRECT_MSG 1
58 #define TIPC_NAMED_MSG 2
59 #define TIPC_MCAST_MSG 3
60
61 #define TIPC_ZONE(addr) (((addr) >> 24) & 0xFF)
62 #define TIPC_CLUSTER(addr) (((addr) >> 12) & 0xFFF)
63 #define TIPC_NODE(addr) (((addr) >> 0) & 0xFFF)
64
65 struct tipc_pkthdr {
66 uint32_t w0;
67 uint32_t w1;
68 };
69
70 #define TIPC_VER(w0) (((w0) >> 29) & 0x07)
71 #define TIPC_USER(w0) (((w0) >> 25) & 0x0F)
72 #define TIPC_HSIZE(w0) (((w0) >> 21) & 0x0F)
73 #define TIPC_MSIZE(w0) (((w0) >> 0) & 0xFFFF)
74 #define TIPC_MTYPE(w1) (((w1) >> 29) & 0x07)
75 #define TIPC_BROADCAST_ACK(w1) (((w1) >> 0) & 0xFFFF)
76 #define TIPC_LINK_ACK(w2) (((w2) >> 16) & 0xFFFF)
77 #define TIPC_LINK_SEQ(w2) (((w2) >> 0) & 0xFFFF)
78
79 static const struct tok tipcuser_values[] = {
80 { TIPC_USER_LOW_IMPORTANCE, "Low Importance Data payload" },
81 { TIPC_USER_MEDIUM_IMPORTANCE, "Medium Importance Data payload" },
82 { TIPC_USER_HIGH_IMPORTANCE, "High Importance Data payload" },
83 { TIPC_USER_CRITICAL_IMPORTANCE, "Critical Importance Data payload" },
84 { TIPC_USER_BCAST_PROTOCOL, "Broadcast Link Protocol internal" },
85 { TIPC_USER_MSG_BUNDLER, "Message Bundler Protocol internal" },
86 { TIPC_USER_LINK_PROTOCOL, "Link State Protocol internal" },
87 { TIPC_USER_CONN_MANAGER, "Connection Manager internal" },
88 { TIPC_USER_CHANGEOVER_PROTOCOL, "Link Changeover Protocol internal" },
89 { TIPC_USER_NAME_DISTRIBUTOR, "Name Table Update Protocol internal" },
90 { TIPC_USER_MSG_FRAGMENTER, "Message Fragmentation Protocol internal" },
91 { TIPC_USER_LINK_CONFIG, "Neighbor Detection Protocol internal" },
92 { 0, NULL }
93 };
94
95 static const struct tok tipcmtype_values[] = {
96 { TIPC_CONN_MSG, "CONN_MSG" },
97 { TIPC_DIRECT_MSG, "MCAST_MSG" },
98 { TIPC_NAMED_MSG, "NAMED_MSG" },
99 { TIPC_MCAST_MSG, "DIRECT_MSG" },
100 { 0, NULL }
101 };
102
103 static const struct tok tipc_linkconf_mtype_values[] = {
104 { 0, "Link request" },
105 { 1, "Link response" },
106 { 0, NULL }
107 };
108
109 struct payload_tipc_pkthdr {
110 uint32_t w0;
111 uint32_t w1;
112 uint32_t w2;
113 uint32_t prev_node;
114 uint32_t orig_port;
115 uint32_t dest_port;
116 uint32_t orig_node;
117 uint32_t dest_node;
118 uint32_t name_type;
119 uint32_t w9;
120 uint32_t wA;
121 };
122
123 struct internal_tipc_pkthdr {
124 uint32_t w0;
125 uint32_t w1;
126 uint32_t w2;
127 uint32_t prev_node;
128 uint32_t w4;
129 uint32_t w5;
130 uint32_t orig_node;
131 uint32_t dest_node;
132 uint32_t trans_seq;
133 uint32_t w9;
134 };
135
136 #define TIPC_SEQ_GAP(w1) (((w1) >> 16) & 0x1FFF)
137 #define TIPC_BC_GAP_AFTER(w2) (((w2) >> 16) & 0xFFFF)
138 #define TIPC_BC_GAP_TO(w2) (((w2) >> 0) & 0xFFFF)
139 #define TIPC_LAST_SENT_FRAG(w4) (((w4) >> 16) & 0xFFFF)
140 #define TIPC_NEXT_SENT_FRAG(w4) (((w4) >> 0) & 0xFFFF)
141 #define TIPC_SESS_NO(w5) (((w5) >> 16) & 0xFFFF)
142 #define TIPC_MSG_CNT(w9) (((w9) >> 16) & 0xFFFF)
143 #define TIPC_LINK_TOL(w9) (((w9) >> 0) & 0xFFFF)
144
145 struct link_conf_tipc_pkthdr {
146 uint32_t w0;
147 uint32_t w1;
148 uint32_t dest_domain;
149 uint32_t prev_node;
150 uint32_t ntwrk_id;
151 uint32_t w5;
152 uint8_t media_address[16];
153 };
154
155 #define TIPC_NODE_SIG(w1) (((w1) >> 0) & 0xFFFF)
156 #define TIPC_MEDIA_ID(w5) (((w5) >> 0) & 0xFF)
157
158 static void
print_payload(netdissect_options * ndo,const struct payload_tipc_pkthdr * ap)159 print_payload(netdissect_options *ndo, const struct payload_tipc_pkthdr *ap)
160 {
161 uint32_t w0, w1, w2;
162 u_int user;
163 u_int hsize;
164 u_int msize;
165 u_int mtype;
166 u_int broadcast_ack;
167 u_int link_ack;
168 u_int link_seq;
169 u_int prev_node;
170 u_int orig_port;
171 u_int dest_port;
172 u_int orig_node;
173 u_int dest_node;
174
175 ND_TCHECK(ap->dest_port);
176 w0 = EXTRACT_32BITS(&ap->w0);
177 user = TIPC_USER(w0);
178 hsize = TIPC_HSIZE(w0);
179 msize = TIPC_MSIZE(w0);
180 w1 = EXTRACT_32BITS(&ap->w1);
181 mtype = TIPC_MTYPE(w1);
182 prev_node = EXTRACT_32BITS(&ap->prev_node);
183 orig_port = EXTRACT_32BITS(&ap->orig_port);
184 dest_port = EXTRACT_32BITS(&ap->dest_port);
185 if (hsize <= 6) {
186 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
187 TIPC_VER(w0),
188 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
189 orig_port, dest_port,
190 hsize*4, msize,
191 tok2str(tipcuser_values, "unknown", user),
192 tok2str(tipcmtype_values, "Unknown", mtype)));
193 } else {
194 ND_TCHECK(ap->dest_node);
195 orig_node = EXTRACT_32BITS(&ap->orig_node);
196 dest_node = EXTRACT_32BITS(&ap->dest_node);
197 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u.%u.%u:%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
198 TIPC_VER(w0),
199 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node),
200 orig_port,
201 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node),
202 dest_port,
203 hsize*4, msize,
204 tok2str(tipcuser_values, "unknown", user),
205 tok2str(tipcmtype_values, "Unknown", mtype)));
206
207 if (ndo->ndo_vflag) {
208 broadcast_ack = TIPC_BROADCAST_ACK(w1);
209 w2 = EXTRACT_32BITS(&ap->w2);
210 link_ack = TIPC_LINK_ACK(w2);
211 link_seq = TIPC_LINK_SEQ(w2);
212 ND_PRINT((ndo, "\n\tPrevious Node %u.%u.%u, Broadcast Ack %u, Link Ack %u, Link Sequence %u",
213 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
214 broadcast_ack, link_ack, link_seq));
215 }
216 }
217 return;
218
219 trunc:
220 ND_PRINT((ndo, "%s", tstr));
221 }
222
223 static void
print_internal(netdissect_options * ndo,const struct internal_tipc_pkthdr * ap)224 print_internal(netdissect_options *ndo, const struct internal_tipc_pkthdr *ap)
225 {
226 uint32_t w0, w1, w2, w4, w5, w9;
227 u_int user;
228 u_int hsize;
229 u_int msize;
230 u_int mtype;
231 u_int seq_gap;
232 u_int broadcast_ack;
233 u_int bc_gap_after;
234 u_int bc_gap_to;
235 u_int prev_node;
236 u_int last_sent_frag;
237 u_int next_sent_frag;
238 u_int sess_no;
239 u_int orig_node;
240 u_int dest_node;
241 u_int trans_seq;
242 u_int msg_cnt;
243 u_int link_tol;
244
245 ND_TCHECK(ap->dest_node);
246 w0 = EXTRACT_32BITS(&ap->w0);
247 user = TIPC_USER(w0);
248 hsize = TIPC_HSIZE(w0);
249 msize = TIPC_MSIZE(w0);
250 w1 = EXTRACT_32BITS(&ap->w1);
251 mtype = TIPC_MTYPE(w1);
252 orig_node = EXTRACT_32BITS(&ap->orig_node);
253 dest_node = EXTRACT_32BITS(&ap->dest_node);
254 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s (0x%08x)",
255 TIPC_VER(w0),
256 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node),
257 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node),
258 hsize*4, msize,
259 tok2str(tipcuser_values, "unknown", user),
260 tok2str(tipcmtype_values, "Unknown", mtype), w1));
261
262 if (ndo->ndo_vflag) {
263 ND_TCHECK(*ap);
264 seq_gap = TIPC_SEQ_GAP(w1);
265 broadcast_ack = TIPC_BROADCAST_ACK(w1);
266 w2 = EXTRACT_32BITS(&ap->w2);
267 bc_gap_after = TIPC_BC_GAP_AFTER(w2);
268 bc_gap_to = TIPC_BC_GAP_TO(w2);
269 prev_node = EXTRACT_32BITS(&ap->prev_node);
270 w4 = EXTRACT_32BITS(&ap->w4);
271 last_sent_frag = TIPC_LAST_SENT_FRAG(w4);
272 next_sent_frag = TIPC_NEXT_SENT_FRAG(w4);
273 w5 = EXTRACT_32BITS(&ap->w5);
274 sess_no = TIPC_SESS_NO(w5);
275 trans_seq = EXTRACT_32BITS(&ap->trans_seq);
276 w9 = EXTRACT_32BITS(&ap->w9);
277 msg_cnt = TIPC_MSG_CNT(w9);
278 link_tol = TIPC_LINK_TOL(w9);
279 ND_PRINT((ndo, "\n\tPrevious Node %u.%u.%u, Session No. %u, Broadcast Ack %u, Sequence Gap %u, Broadcast Gap After %u, Broadcast Gap To %u, Last Sent Packet No. %u, Next sent Packet No. %u, Transport Sequence %u, msg_count %u, Link Tolerance %u",
280 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
281 sess_no, broadcast_ack, seq_gap, bc_gap_after, bc_gap_to,
282 last_sent_frag, next_sent_frag, trans_seq, msg_cnt,
283 link_tol));
284 }
285 return;
286
287 trunc:
288 ND_PRINT((ndo, "%s", tstr));
289 }
290
291 static void
print_link_conf(netdissect_options * ndo,const struct link_conf_tipc_pkthdr * ap)292 print_link_conf(netdissect_options *ndo, const struct link_conf_tipc_pkthdr *ap)
293 {
294 uint32_t w0, w1, w5;
295 u_int user;
296 u_int hsize;
297 u_int msize;
298 u_int mtype;
299 u_int node_sig;
300 u_int prev_node;
301 u_int dest_domain;
302 u_int ntwrk_id;
303 u_int media_id;
304
305 ND_TCHECK(ap->prev_node);
306 w0 = EXTRACT_32BITS(&ap->w0);
307 user = TIPC_USER(w0);
308 hsize = TIPC_HSIZE(w0);
309 msize = TIPC_MSIZE(w0);
310 w1 = EXTRACT_32BITS(&ap->w1);
311 mtype = TIPC_MTYPE(w1);
312 dest_domain = EXTRACT_32BITS(&ap->dest_domain);
313 prev_node = EXTRACT_32BITS(&ap->prev_node);
314
315 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
316 TIPC_VER(w0),
317 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
318 TIPC_ZONE(dest_domain), TIPC_CLUSTER(dest_domain), TIPC_NODE(dest_domain),
319 hsize*4, msize,
320 tok2str(tipcuser_values, "unknown", user),
321 tok2str(tipc_linkconf_mtype_values, "Unknown", mtype)));
322 if (ndo->ndo_vflag) {
323 ND_TCHECK(ap->w5);
324 node_sig = TIPC_NODE_SIG(w1);
325 ntwrk_id = EXTRACT_32BITS(&ap->ntwrk_id);
326 w5 = EXTRACT_32BITS(&ap->w5);
327 media_id = TIPC_MEDIA_ID(w5);
328 ND_PRINT((ndo, "\n\tNodeSignature %u, network_id %u, media_id %u",
329 node_sig, ntwrk_id, media_id));
330 }
331 return;
332
333 trunc:
334 ND_PRINT((ndo, "%s", tstr));
335 }
336
337 void
tipc_print(netdissect_options * ndo,const u_char * bp,u_int length _U_,u_int caplen _U_)338 tipc_print(netdissect_options *ndo, const u_char *bp, u_int length _U_,
339 u_int caplen _U_)
340 {
341 const struct tipc_pkthdr *ap;
342 uint32_t w0;
343 u_int user;
344
345 ap = (const struct tipc_pkthdr *)bp;
346 ND_TCHECK(ap->w0);
347 w0 = EXTRACT_32BITS(&ap->w0);
348 user = TIPC_USER(w0);
349
350 switch (user)
351 {
352 case TIPC_USER_LOW_IMPORTANCE:
353 case TIPC_USER_MEDIUM_IMPORTANCE:
354 case TIPC_USER_HIGH_IMPORTANCE:
355 case TIPC_USER_CRITICAL_IMPORTANCE:
356 case TIPC_USER_NAME_DISTRIBUTOR:
357 case TIPC_USER_CONN_MANAGER:
358 print_payload(ndo, (const struct payload_tipc_pkthdr *)bp);
359 break;
360
361 case TIPC_USER_LINK_CONFIG:
362 print_link_conf(ndo, (const struct link_conf_tipc_pkthdr *)bp);
363 break;
364
365 case TIPC_USER_BCAST_PROTOCOL:
366 case TIPC_USER_MSG_BUNDLER:
367 case TIPC_USER_LINK_PROTOCOL:
368 case TIPC_USER_CHANGEOVER_PROTOCOL:
369 case TIPC_USER_MSG_FRAGMENTER:
370 print_internal(ndo, (const struct internal_tipc_pkthdr *)bp);
371 break;
372
373 }
374 return;
375
376 trunc:
377 ND_PRINT((ndo, "%s", tstr));
378 }
379
380 /*
381 * Local Variables:
382 * c-style: bsd
383 * End:
384 */
385
386