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 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 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 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 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
