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 #include <sys/cdefs.h> 23 #ifndef lint 24 __RCSID("$NetBSD: print-tipc.c,v 1.2 2017/01/24 23:29:14 christos Exp $"); 25 #endif 26 27 #ifdef HAVE_CONFIG_H 28 #include "config.h" 29 #endif 30 31 #include <netdissect-stdinc.h> 32 33 #include "netdissect.h" 34 #include "ether.h" 35 #include "ethertype.h" 36 #include "extract.h" 37 38 static const char tstr[] = "[|TIPC]"; 39 40 /* 41 * Transparent Inter-Process Communication (TIPC) protocol. 42 * 43 * http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html 44 * http://tipc.sourceforge.net/doc/tipc_message_formats.html 45 */ 46 47 #define TIPC_USER_LOW_IMPORTANCE 0 48 #define TIPC_USER_MEDIUM_IMPORTANCE 1 49 #define TIPC_USER_HIGH_IMPORTANCE 2 50 #define TIPC_USER_CRITICAL_IMPORTANCE 3 51 #define TIPC_USER_BCAST_PROTOCOL 5 52 #define TIPC_USER_MSG_BUNDLER 6 53 #define TIPC_USER_LINK_PROTOCOL 7 54 #define TIPC_USER_CONN_MANAGER 8 55 #define TIPC_USER_CHANGEOVER_PROTOCOL 10 56 #define TIPC_USER_NAME_DISTRIBUTOR 11 57 #define TIPC_USER_MSG_FRAGMENTER 12 58 #define TIPC_USER_LINK_CONFIG 13 59 60 #define TIPC_CONN_MSG 0 61 #define TIPC_DIRECT_MSG 1 62 #define TIPC_NAMED_MSG 2 63 #define TIPC_MCAST_MSG 3 64 65 #define TIPC_ZONE(addr) (((addr) >> 24) & 0xFF) 66 #define TIPC_CLUSTER(addr) (((addr) >> 12) & 0xFFF) 67 #define TIPC_NODE(addr) (((addr) >> 0) & 0xFFF) 68 69 struct tipc_pkthdr { 70 uint32_t w0; 71 uint32_t w1; 72 }; 73 74 #define TIPC_VER(w0) (((w0) >> 29) & 0x07) 75 #define TIPC_USER(w0) (((w0) >> 25) & 0x0F) 76 #define TIPC_HSIZE(w0) (((w0) >> 21) & 0x0F) 77 #define TIPC_MSIZE(w0) (((w0) >> 0) & 0xFFFF) 78 #define TIPC_MTYPE(w1) (((w1) >> 29) & 0x07) 79 #define TIPC_BROADCAST_ACK(w1) (((w1) >> 0) & 0xFFFF) 80 #define TIPC_LINK_ACK(w2) (((w2) >> 16) & 0xFFFF) 81 #define TIPC_LINK_SEQ(w2) (((w2) >> 0) & 0xFFFF) 82 83 static const struct tok tipcuser_values[] = { 84 { TIPC_USER_LOW_IMPORTANCE, "Low Importance Data payload" }, 85 { TIPC_USER_MEDIUM_IMPORTANCE, "Medium Importance Data payload" }, 86 { TIPC_USER_HIGH_IMPORTANCE, "High Importance Data payload" }, 87 { TIPC_USER_CRITICAL_IMPORTANCE, "Critical Importance Data payload" }, 88 { TIPC_USER_BCAST_PROTOCOL, "Broadcast Link Protocol internal" }, 89 { TIPC_USER_MSG_BUNDLER, "Message Bundler Protocol internal" }, 90 { TIPC_USER_LINK_PROTOCOL, "Link State Protocol internal" }, 91 { TIPC_USER_CONN_MANAGER, "Connection Manager internal" }, 92 { TIPC_USER_CHANGEOVER_PROTOCOL, "Link Changeover Protocol internal" }, 93 { TIPC_USER_NAME_DISTRIBUTOR, "Name Table Update Protocol internal" }, 94 { TIPC_USER_MSG_FRAGMENTER, "Message Fragmentation Protocol internal" }, 95 { TIPC_USER_LINK_CONFIG, "Neighbor Detection Protocol internal" }, 96 { 0, NULL } 97 }; 98 99 static const struct tok tipcmtype_values[] = { 100 { TIPC_CONN_MSG, "CONN_MSG" }, 101 { TIPC_DIRECT_MSG, "MCAST_MSG" }, 102 { TIPC_NAMED_MSG, "NAMED_MSG" }, 103 { TIPC_MCAST_MSG, "DIRECT_MSG" }, 104 { 0, NULL } 105 }; 106 107 static const struct tok tipc_linkconf_mtype_values[] = { 108 { 0, "Link request" }, 109 { 1, "Link response" }, 110 { 0, NULL } 111 }; 112 113 struct payload_tipc_pkthdr { 114 uint32_t w0; 115 uint32_t w1; 116 uint32_t w2; 117 uint32_t prev_node; 118 uint32_t orig_port; 119 uint32_t dest_port; 120 uint32_t orig_node; 121 uint32_t dest_node; 122 uint32_t name_type; 123 uint32_t w9; 124 uint32_t wA; 125 }; 126 127 struct internal_tipc_pkthdr { 128 uint32_t w0; 129 uint32_t w1; 130 uint32_t w2; 131 uint32_t prev_node; 132 uint32_t w4; 133 uint32_t w5; 134 uint32_t orig_node; 135 uint32_t dest_node; 136 uint32_t trans_seq; 137 uint32_t w9; 138 }; 139 140 #define TIPC_SEQ_GAP(w1) (((w1) >> 16) & 0x1FFF) 141 #define TIPC_BC_GAP_AFTER(w2) (((w2) >> 16) & 0xFFFF) 142 #define TIPC_BC_GAP_TO(w2) (((w2) >> 0) & 0xFFFF) 143 #define TIPC_LAST_SENT_FRAG(w4) (((w4) >> 16) & 0xFFFF) 144 #define TIPC_NEXT_SENT_FRAG(w4) (((w4) >> 0) & 0xFFFF) 145 #define TIPC_SESS_NO(w5) (((w5) >> 16) & 0xFFFF) 146 #define TIPC_MSG_CNT(w9) (((w9) >> 16) & 0xFFFF) 147 #define TIPC_LINK_TOL(w9) (((w9) >> 0) & 0xFFFF) 148 149 struct link_conf_tipc_pkthdr { 150 uint32_t w0; 151 uint32_t w1; 152 uint32_t dest_domain; 153 uint32_t prev_node; 154 uint32_t ntwrk_id; 155 uint32_t w5; 156 uint8_t media_address[16]; 157 }; 158 159 #define TIPC_NODE_SIG(w1) (((w1) >> 0) & 0xFFFF) 160 #define TIPC_MEDIA_ID(w5) (((w5) >> 0) & 0xFF) 161 162 static void 163 print_payload(netdissect_options *ndo, const struct payload_tipc_pkthdr *ap) 164 { 165 uint32_t w0, w1, w2; 166 u_int user; 167 u_int hsize; 168 u_int msize; 169 u_int mtype; 170 u_int broadcast_ack; 171 u_int link_ack; 172 u_int link_seq; 173 u_int prev_node; 174 u_int orig_port; 175 u_int dest_port; 176 u_int orig_node; 177 u_int dest_node; 178 179 ND_TCHECK(ap->dest_port); 180 w0 = EXTRACT_32BITS(&ap->w0); 181 user = TIPC_USER(w0); 182 hsize = TIPC_HSIZE(w0); 183 msize = TIPC_MSIZE(w0); 184 w1 = EXTRACT_32BITS(&ap->w1); 185 mtype = TIPC_MTYPE(w1); 186 prev_node = EXTRACT_32BITS(&ap->prev_node); 187 orig_port = EXTRACT_32BITS(&ap->orig_port); 188 dest_port = EXTRACT_32BITS(&ap->dest_port); 189 if (hsize <= 6) { 190 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 191 TIPC_VER(w0), 192 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 193 orig_port, dest_port, 194 hsize*4, msize, 195 tok2str(tipcuser_values, "unknown", user), 196 tok2str(tipcmtype_values, "Unknown", mtype))); 197 } else { 198 ND_TCHECK(ap->dest_node); 199 orig_node = EXTRACT_32BITS(&ap->orig_node); 200 dest_node = EXTRACT_32BITS(&ap->dest_node); 201 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u.%u.%u:%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 202 TIPC_VER(w0), 203 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node), 204 orig_port, 205 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node), 206 dest_port, 207 hsize*4, msize, 208 tok2str(tipcuser_values, "unknown", user), 209 tok2str(tipcmtype_values, "Unknown", mtype))); 210 211 if (ndo->ndo_vflag) { 212 broadcast_ack = TIPC_BROADCAST_ACK(w1); 213 w2 = EXTRACT_32BITS(&ap->w2); 214 link_ack = TIPC_LINK_ACK(w2); 215 link_seq = TIPC_LINK_SEQ(w2); 216 ND_PRINT((ndo, "\n\tPrevious Node %u.%u.%u, Broadcast Ack %u, Link Ack %u, Link Sequence %u", 217 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 218 broadcast_ack, link_ack, link_seq)); 219 } 220 } 221 return; 222 223 trunc: 224 ND_PRINT((ndo, "%s", tstr)); 225 } 226 227 static void 228 print_internal(netdissect_options *ndo, const struct internal_tipc_pkthdr *ap) 229 { 230 uint32_t w0, w1, w2, w4, w5, w9; 231 u_int user; 232 u_int hsize; 233 u_int msize; 234 u_int mtype; 235 u_int seq_gap; 236 u_int broadcast_ack; 237 u_int bc_gap_after; 238 u_int bc_gap_to; 239 u_int prev_node; 240 u_int last_sent_frag; 241 u_int next_sent_frag; 242 u_int sess_no; 243 u_int orig_node; 244 u_int dest_node; 245 u_int trans_seq; 246 u_int msg_cnt; 247 u_int link_tol; 248 249 ND_TCHECK(ap->dest_node); 250 w0 = EXTRACT_32BITS(&ap->w0); 251 user = TIPC_USER(w0); 252 hsize = TIPC_HSIZE(w0); 253 msize = TIPC_MSIZE(w0); 254 w1 = EXTRACT_32BITS(&ap->w1); 255 mtype = TIPC_MTYPE(w1); 256 orig_node = EXTRACT_32BITS(&ap->orig_node); 257 dest_node = EXTRACT_32BITS(&ap->dest_node); 258 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s (0x%08x)", 259 TIPC_VER(w0), 260 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node), 261 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node), 262 hsize*4, msize, 263 tok2str(tipcuser_values, "unknown", user), 264 tok2str(tipcmtype_values, "Unknown", mtype), w1)); 265 266 if (ndo->ndo_vflag) { 267 ND_TCHECK(*ap); 268 seq_gap = TIPC_SEQ_GAP(w1); 269 broadcast_ack = TIPC_BROADCAST_ACK(w1); 270 w2 = EXTRACT_32BITS(&ap->w2); 271 bc_gap_after = TIPC_BC_GAP_AFTER(w2); 272 bc_gap_to = TIPC_BC_GAP_TO(w2); 273 prev_node = EXTRACT_32BITS(&ap->prev_node); 274 w4 = EXTRACT_32BITS(&ap->w4); 275 last_sent_frag = TIPC_LAST_SENT_FRAG(w4); 276 next_sent_frag = TIPC_NEXT_SENT_FRAG(w4); 277 w5 = EXTRACT_32BITS(&ap->w5); 278 sess_no = TIPC_SESS_NO(w5); 279 trans_seq = EXTRACT_32BITS(&ap->trans_seq); 280 w9 = EXTRACT_32BITS(&ap->w9); 281 msg_cnt = TIPC_MSG_CNT(w9); 282 link_tol = TIPC_LINK_TOL(w9); 283 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", 284 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 285 sess_no, broadcast_ack, seq_gap, bc_gap_after, bc_gap_to, 286 last_sent_frag, next_sent_frag, trans_seq, msg_cnt, 287 link_tol)); 288 } 289 return; 290 291 trunc: 292 ND_PRINT((ndo, "%s", tstr)); 293 } 294 295 static void 296 print_link_conf(netdissect_options *ndo, const struct link_conf_tipc_pkthdr *ap) 297 { 298 uint32_t w0, w1, w5; 299 u_int user; 300 u_int hsize; 301 u_int msize; 302 u_int mtype; 303 u_int node_sig; 304 u_int prev_node; 305 u_int dest_domain; 306 u_int ntwrk_id; 307 u_int media_id; 308 309 ND_TCHECK(ap->prev_node); 310 w0 = EXTRACT_32BITS(&ap->w0); 311 user = TIPC_USER(w0); 312 hsize = TIPC_HSIZE(w0); 313 msize = TIPC_MSIZE(w0); 314 w1 = EXTRACT_32BITS(&ap->w1); 315 mtype = TIPC_MTYPE(w1); 316 dest_domain = EXTRACT_32BITS(&ap->dest_domain); 317 prev_node = EXTRACT_32BITS(&ap->prev_node); 318 319 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 320 TIPC_VER(w0), 321 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 322 TIPC_ZONE(dest_domain), TIPC_CLUSTER(dest_domain), TIPC_NODE(dest_domain), 323 hsize*4, msize, 324 tok2str(tipcuser_values, "unknown", user), 325 tok2str(tipc_linkconf_mtype_values, "Unknown", mtype))); 326 if (ndo->ndo_vflag) { 327 ND_TCHECK(ap->w5); 328 node_sig = TIPC_NODE_SIG(w1); 329 ntwrk_id = EXTRACT_32BITS(&ap->ntwrk_id); 330 w5 = EXTRACT_32BITS(&ap->w5); 331 media_id = TIPC_MEDIA_ID(w5); 332 ND_PRINT((ndo, "\n\tNodeSignature %u, network_id %u, media_id %u", 333 node_sig, ntwrk_id, media_id)); 334 } 335 return; 336 337 trunc: 338 ND_PRINT((ndo, "%s", tstr)); 339 } 340 341 void 342 tipc_print(netdissect_options *ndo, const u_char *bp, u_int length _U_, 343 u_int caplen _U_) 344 { 345 const struct tipc_pkthdr *ap; 346 uint32_t w0; 347 u_int user; 348 349 ap = (const struct tipc_pkthdr *)bp; 350 ND_TCHECK(ap->w0); 351 w0 = EXTRACT_32BITS(&ap->w0); 352 user = TIPC_USER(w0); 353 354 switch (user) 355 { 356 case TIPC_USER_LOW_IMPORTANCE: 357 case TIPC_USER_MEDIUM_IMPORTANCE: 358 case TIPC_USER_HIGH_IMPORTANCE: 359 case TIPC_USER_CRITICAL_IMPORTANCE: 360 case TIPC_USER_NAME_DISTRIBUTOR: 361 case TIPC_USER_CONN_MANAGER: 362 print_payload(ndo, (const struct payload_tipc_pkthdr *)bp); 363 break; 364 365 case TIPC_USER_LINK_CONFIG: 366 print_link_conf(ndo, (const struct link_conf_tipc_pkthdr *)bp); 367 break; 368 369 case TIPC_USER_BCAST_PROTOCOL: 370 case TIPC_USER_MSG_BUNDLER: 371 case TIPC_USER_LINK_PROTOCOL: 372 case TIPC_USER_CHANGEOVER_PROTOCOL: 373 case TIPC_USER_MSG_FRAGMENTER: 374 print_internal(ndo, (const struct internal_tipc_pkthdr *)bp); 375 break; 376 377 } 378 return; 379 380 trunc: 381 ND_PRINT((ndo, "%s", tstr)); 382 } 383 384 /* 385 * Local Variables: 386 * c-style: bsd 387 * End: 388 */ 389 390