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 1.4 2020/02/24 18:39:47 kamil Exp $"); 25 #endif 26 27 /* \summary: Transparent Inter-Process Communication (TIPC) protocol printer */ 28 29 /* 30 * specification: 31 * http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html 32 * http://tipc.sourceforge.net/doc/tipc_message_formats.html 33 */ 34 35 #ifdef HAVE_CONFIG_H 36 #include "config.h" 37 #endif 38 39 #include <netdissect-stdinc.h> 40 41 #include "netdissect.h" 42 #include "ether.h" 43 #include "ethertype.h" 44 #include "extract.h" 45 46 static const char tstr[] = "[|TIPC]"; 47 48 #define TIPC_USER_LOW_IMPORTANCE 0 49 #define TIPC_USER_MEDIUM_IMPORTANCE 1 50 #define TIPC_USER_HIGH_IMPORTANCE 2 51 #define TIPC_USER_CRITICAL_IMPORTANCE 3 52 #define TIPC_USER_BCAST_PROTOCOL 5 53 #define TIPC_USER_MSG_BUNDLER 6 54 #define TIPC_USER_LINK_PROTOCOL 7 55 #define TIPC_USER_CONN_MANAGER 8 56 #define TIPC_USER_CHANGEOVER_PROTOCOL 10 57 #define TIPC_USER_NAME_DISTRIBUTOR 11 58 #define TIPC_USER_MSG_FRAGMENTER 12 59 #define TIPC_USER_LINK_CONFIG 13 60 61 #define TIPC_CONN_MSG 0 62 #define TIPC_DIRECT_MSG 1 63 #define TIPC_NAMED_MSG 2 64 #define TIPC_MCAST_MSG 3 65 66 #define TIPC_ZONE(addr) (((addr) >> 24) & 0xFF) 67 #define TIPC_CLUSTER(addr) (((addr) >> 12) & 0xFFF) 68 #define TIPC_NODE(addr) (((addr) >> 0) & 0xFFF) 69 70 struct tipc_pkthdr { 71 uint32_t w0; 72 uint32_t w1; 73 }; 74 75 #define TIPC_VER(w0) (((w0) >> 29) & 0x07) 76 #define TIPC_USER(w0) (((w0) >> 25) & 0x0F) 77 #define TIPC_HSIZE(w0) (((w0) >> 21) & 0x0F) 78 #define TIPC_MSIZE(w0) (((w0) >> 0) & 0xFFFF) 79 #define TIPC_MTYPE(w1) (((w1) >> 29) & 0x07) 80 #define TIPC_BROADCAST_ACK(w1) (((w1) >> 0) & 0xFFFF) 81 #define TIPC_LINK_ACK(w2) (((w2) >> 16) & 0xFFFF) 82 #define TIPC_LINK_SEQ(w2) (((w2) >> 0) & 0xFFFF) 83 84 static const struct tok tipcuser_values[] = { 85 { TIPC_USER_LOW_IMPORTANCE, "Low Importance Data payload" }, 86 { TIPC_USER_MEDIUM_IMPORTANCE, "Medium Importance Data payload" }, 87 { TIPC_USER_HIGH_IMPORTANCE, "High Importance Data payload" }, 88 { TIPC_USER_CRITICAL_IMPORTANCE, "Critical Importance Data payload" }, 89 { TIPC_USER_BCAST_PROTOCOL, "Broadcast Link Protocol internal" }, 90 { TIPC_USER_MSG_BUNDLER, "Message Bundler Protocol internal" }, 91 { TIPC_USER_LINK_PROTOCOL, "Link State Protocol internal" }, 92 { TIPC_USER_CONN_MANAGER, "Connection Manager internal" }, 93 { TIPC_USER_CHANGEOVER_PROTOCOL, "Link Changeover Protocol internal" }, 94 { TIPC_USER_NAME_DISTRIBUTOR, "Name Table Update Protocol internal" }, 95 { TIPC_USER_MSG_FRAGMENTER, "Message Fragmentation Protocol internal" }, 96 { TIPC_USER_LINK_CONFIG, "Neighbor Detection Protocol internal" }, 97 { 0, NULL } 98 }; 99 100 static const struct tok tipcmtype_values[] = { 101 { TIPC_CONN_MSG, "CONN_MSG" }, 102 { TIPC_DIRECT_MSG, "MCAST_MSG" }, 103 { TIPC_NAMED_MSG, "NAMED_MSG" }, 104 { TIPC_MCAST_MSG, "DIRECT_MSG" }, 105 { 0, NULL } 106 }; 107 108 static const struct tok tipc_linkconf_mtype_values[] = { 109 { 0, "Link request" }, 110 { 1, "Link response" }, 111 { 0, NULL } 112 }; 113 114 struct payload_tipc_pkthdr { 115 uint32_t w0; 116 uint32_t w1; 117 uint32_t w2; 118 uint32_t prev_node; 119 uint32_t orig_port; 120 uint32_t dest_port; 121 uint32_t orig_node; 122 uint32_t dest_node; 123 uint32_t name_type; 124 uint32_t w9; 125 uint32_t wA; 126 }; 127 128 struct internal_tipc_pkthdr { 129 uint32_t w0; 130 uint32_t w1; 131 uint32_t w2; 132 uint32_t prev_node; 133 uint32_t w4; 134 uint32_t w5; 135 uint32_t orig_node; 136 uint32_t dest_node; 137 uint32_t trans_seq; 138 uint32_t w9; 139 }; 140 141 #define TIPC_SEQ_GAP(w1) (((w1) >> 16) & 0x1FFF) 142 #define TIPC_BC_GAP_AFTER(w2) (((w2) >> 16) & 0xFFFF) 143 #define TIPC_BC_GAP_TO(w2) (((w2) >> 0) & 0xFFFF) 144 #define TIPC_LAST_SENT_FRAG(w4) (((w4) >> 16) & 0xFFFF) 145 #define TIPC_NEXT_SENT_FRAG(w4) (((w4) >> 0) & 0xFFFF) 146 #define TIPC_SESS_NO(w5) (((w5) >> 16) & 0xFFFF) 147 #define TIPC_MSG_CNT(w9) (((w9) >> 16) & 0xFFFF) 148 #define TIPC_LINK_TOL(w9) (((w9) >> 0) & 0xFFFF) 149 150 struct link_conf_tipc_pkthdr { 151 uint32_t w0; 152 uint32_t w1; 153 uint32_t dest_domain; 154 uint32_t prev_node; 155 uint32_t ntwrk_id; 156 uint32_t w5; 157 uint8_t media_address[16]; 158 }; 159 160 #define TIPC_NODE_SIG(w1) (((w1) >> 0) & 0xFFFF) 161 #define TIPC_MEDIA_ID(w5) (((w5) >> 0) & 0xFF) 162 163 static void 164 print_payload(netdissect_options *ndo, const struct payload_tipc_pkthdr *ap) 165 { 166 uint32_t w0, w1, w2; 167 u_int user; 168 u_int hsize; 169 u_int msize; 170 u_int mtype; 171 u_int broadcast_ack; 172 u_int link_ack; 173 u_int link_seq; 174 u_int prev_node; 175 u_int orig_port; 176 u_int dest_port; 177 u_int orig_node; 178 u_int dest_node; 179 180 ND_TCHECK(ap->dest_port); 181 w0 = EXTRACT_32BITS(&ap->w0); 182 user = TIPC_USER(w0); 183 hsize = TIPC_HSIZE(w0); 184 msize = TIPC_MSIZE(w0); 185 w1 = EXTRACT_32BITS(&ap->w1); 186 mtype = TIPC_MTYPE(w1); 187 prev_node = EXTRACT_32BITS(&ap->prev_node); 188 orig_port = EXTRACT_32BITS(&ap->orig_port); 189 dest_port = EXTRACT_32BITS(&ap->dest_port); 190 if (hsize <= 6) { 191 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 192 TIPC_VER(w0), 193 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 194 orig_port, dest_port, 195 hsize*4, msize, 196 tok2str(tipcuser_values, "unknown", user), 197 tok2str(tipcmtype_values, "Unknown", mtype))); 198 } else { 199 ND_TCHECK(ap->dest_node); 200 orig_node = EXTRACT_32BITS(&ap->orig_node); 201 dest_node = EXTRACT_32BITS(&ap->dest_node); 202 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u.%u.%u:%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 203 TIPC_VER(w0), 204 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node), 205 orig_port, 206 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node), 207 dest_port, 208 hsize*4, msize, 209 tok2str(tipcuser_values, "unknown", user), 210 tok2str(tipcmtype_values, "Unknown", mtype))); 211 212 if (ndo->ndo_vflag) { 213 broadcast_ack = TIPC_BROADCAST_ACK(w1); 214 w2 = EXTRACT_32BITS(&ap->w2); 215 link_ack = TIPC_LINK_ACK(w2); 216 link_seq = TIPC_LINK_SEQ(w2); 217 ND_PRINT((ndo, "\n\tPrevious Node %u.%u.%u, Broadcast Ack %u, Link Ack %u, Link Sequence %u", 218 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 219 broadcast_ack, link_ack, link_seq)); 220 } 221 } 222 return; 223 224 trunc: 225 ND_PRINT((ndo, "%s", tstr)); 226 } 227 228 UNALIGNED_OK 229 static void 230 print_internal(netdissect_options *ndo, const struct internal_tipc_pkthdr *ap) 231 { 232 uint32_t w0, w1, w2, w4, w5, w9; 233 u_int user; 234 u_int hsize; 235 u_int msize; 236 u_int mtype; 237 u_int seq_gap; 238 u_int broadcast_ack; 239 u_int bc_gap_after; 240 u_int bc_gap_to; 241 u_int prev_node; 242 u_int last_sent_frag; 243 u_int next_sent_frag; 244 u_int sess_no; 245 u_int orig_node; 246 u_int dest_node; 247 u_int trans_seq; 248 u_int msg_cnt; 249 u_int link_tol; 250 251 ND_TCHECK(ap->dest_node); 252 w0 = EXTRACT_32BITS(&ap->w0); 253 user = TIPC_USER(w0); 254 hsize = TIPC_HSIZE(w0); 255 msize = TIPC_MSIZE(w0); 256 w1 = EXTRACT_32BITS(&ap->w1); 257 mtype = TIPC_MTYPE(w1); 258 orig_node = EXTRACT_32BITS(&ap->orig_node); 259 dest_node = EXTRACT_32BITS(&ap->dest_node); 260 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s (0x%08x)", 261 TIPC_VER(w0), 262 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node), 263 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node), 264 hsize*4, msize, 265 tok2str(tipcuser_values, "unknown", user), 266 tok2str(tipcmtype_values, "Unknown", mtype), w1)); 267 268 if (ndo->ndo_vflag) { 269 ND_TCHECK(*ap); 270 seq_gap = TIPC_SEQ_GAP(w1); 271 broadcast_ack = TIPC_BROADCAST_ACK(w1); 272 w2 = EXTRACT_32BITS(&ap->w2); 273 bc_gap_after = TIPC_BC_GAP_AFTER(w2); 274 bc_gap_to = TIPC_BC_GAP_TO(w2); 275 prev_node = EXTRACT_32BITS(&ap->prev_node); 276 w4 = EXTRACT_32BITS(&ap->w4); 277 last_sent_frag = TIPC_LAST_SENT_FRAG(w4); 278 next_sent_frag = TIPC_NEXT_SENT_FRAG(w4); 279 w5 = EXTRACT_32BITS(&ap->w5); 280 sess_no = TIPC_SESS_NO(w5); 281 trans_seq = EXTRACT_32BITS(&ap->trans_seq); 282 w9 = EXTRACT_32BITS(&ap->w9); 283 msg_cnt = TIPC_MSG_CNT(w9); 284 link_tol = TIPC_LINK_TOL(w9); 285 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", 286 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 287 sess_no, broadcast_ack, seq_gap, bc_gap_after, bc_gap_to, 288 last_sent_frag, next_sent_frag, trans_seq, msg_cnt, 289 link_tol)); 290 } 291 return; 292 293 trunc: 294 ND_PRINT((ndo, "%s", tstr)); 295 } 296 297 static void 298 print_link_conf(netdissect_options *ndo, const struct link_conf_tipc_pkthdr *ap) 299 { 300 uint32_t w0, w1, w5; 301 u_int user; 302 u_int hsize; 303 u_int msize; 304 u_int mtype; 305 u_int node_sig; 306 u_int prev_node; 307 u_int dest_domain; 308 u_int ntwrk_id; 309 u_int media_id; 310 311 ND_TCHECK(ap->prev_node); 312 w0 = EXTRACT_32BITS(&ap->w0); 313 user = TIPC_USER(w0); 314 hsize = TIPC_HSIZE(w0); 315 msize = TIPC_MSIZE(w0); 316 w1 = EXTRACT_32BITS(&ap->w1); 317 mtype = TIPC_MTYPE(w1); 318 dest_domain = EXTRACT_32BITS(&ap->dest_domain); 319 prev_node = EXTRACT_32BITS(&ap->prev_node); 320 321 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 322 TIPC_VER(w0), 323 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 324 TIPC_ZONE(dest_domain), TIPC_CLUSTER(dest_domain), TIPC_NODE(dest_domain), 325 hsize*4, msize, 326 tok2str(tipcuser_values, "unknown", user), 327 tok2str(tipc_linkconf_mtype_values, "Unknown", mtype))); 328 if (ndo->ndo_vflag) { 329 ND_TCHECK(ap->w5); 330 node_sig = TIPC_NODE_SIG(w1); 331 ntwrk_id = EXTRACT_32BITS(&ap->ntwrk_id); 332 w5 = EXTRACT_32BITS(&ap->w5); 333 media_id = TIPC_MEDIA_ID(w5); 334 ND_PRINT((ndo, "\n\tNodeSignature %u, network_id %u, media_id %u", 335 node_sig, ntwrk_id, media_id)); 336 } 337 return; 338 339 trunc: 340 ND_PRINT((ndo, "%s", tstr)); 341 } 342 343 UNALIGNED_OK 344 void 345 tipc_print(netdissect_options *ndo, const u_char *bp, u_int length _U_, 346 u_int caplen _U_) 347 { 348 const struct tipc_pkthdr *ap; 349 uint32_t w0; 350 u_int user; 351 352 ap = (const struct tipc_pkthdr *)bp; 353 ND_TCHECK(ap->w0); 354 w0 = EXTRACT_32BITS(&ap->w0); 355 user = TIPC_USER(w0); 356 357 switch (user) 358 { 359 case TIPC_USER_LOW_IMPORTANCE: 360 case TIPC_USER_MEDIUM_IMPORTANCE: 361 case TIPC_USER_HIGH_IMPORTANCE: 362 case TIPC_USER_CRITICAL_IMPORTANCE: 363 case TIPC_USER_NAME_DISTRIBUTOR: 364 case TIPC_USER_CONN_MANAGER: 365 print_payload(ndo, (const struct payload_tipc_pkthdr *)bp); 366 break; 367 368 case TIPC_USER_LINK_CONFIG: 369 print_link_conf(ndo, (const struct link_conf_tipc_pkthdr *)bp); 370 break; 371 372 case TIPC_USER_BCAST_PROTOCOL: 373 case TIPC_USER_MSG_BUNDLER: 374 case TIPC_USER_LINK_PROTOCOL: 375 case TIPC_USER_CHANGEOVER_PROTOCOL: 376 case TIPC_USER_MSG_FRAGMENTER: 377 print_internal(ndo, (const struct internal_tipc_pkthdr *)bp); 378 break; 379 380 } 381 return; 382 383 trunc: 384 ND_PRINT((ndo, "%s", tstr)); 385 } 386 387 /* 388 * Local Variables: 389 * c-style: bsd 390 * End: 391 */ 392