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 1.6 2024/09/02 16:15:33 christos Exp $"); 25 #endif 26 27 /* \summary: Transparent Inter-Process Communication (TIPC) protocol printer */ 28 29 /* 30 * specification: 31 * https://web.archive.org/web/20150302152944/http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html 32 * https://web.archive.org/web/20161025110514/http://tipc.sourceforge.net/doc/tipc_message_formats.html 33 */ 34 35 #include <config.h> 36 37 #include "netdissect-stdinc.h" 38 39 #include "netdissect.h" 40 #include "extract.h" 41 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 nd_uint32_t w0; 67 nd_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) & 0x1FFFF) 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 nd_uint32_t w0; 111 nd_uint32_t w1; 112 nd_uint32_t w2; 113 nd_uint32_t prev_node; 114 nd_uint32_t orig_port; 115 nd_uint32_t dest_port; 116 nd_uint32_t orig_node; 117 nd_uint32_t dest_node; 118 nd_uint32_t name_type; 119 nd_uint32_t w9; 120 nd_uint32_t wA; 121 }; 122 123 struct internal_tipc_pkthdr { 124 nd_uint32_t w0; 125 nd_uint32_t w1; 126 nd_uint32_t w2; 127 nd_uint32_t prev_node; 128 nd_uint32_t w4; 129 nd_uint32_t w5; 130 nd_uint32_t orig_node; 131 nd_uint32_t dest_node; 132 nd_uint32_t trans_seq; 133 nd_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 nd_uint32_t w0; 147 nd_uint32_t w1; 148 nd_uint32_t dest_domain; 149 nd_uint32_t prev_node; 150 nd_uint32_t ntwrk_id; 151 nd_uint32_t w5; 152 nd_byte 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 w0 = GET_BE_U_4(ap->w0); 176 user = TIPC_USER(w0); 177 hsize = TIPC_HSIZE(w0); 178 msize = TIPC_MSIZE(w0); 179 w1 = GET_BE_U_4(ap->w1); 180 mtype = TIPC_MTYPE(w1); 181 prev_node = GET_BE_U_4(ap->prev_node); 182 orig_port = GET_BE_U_4(ap->orig_port); 183 dest_port = GET_BE_U_4(ap->dest_port); 184 if (hsize <= 6) { 185 ND_PRINT("TIPC v%u.0 %u.%u.%u:%u > %u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 186 TIPC_VER(w0), 187 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 188 orig_port, dest_port, 189 hsize*4, msize, 190 tok2str(tipcuser_values, "unknown", user), 191 tok2str(tipcmtype_values, "Unknown", mtype)); 192 } else { 193 orig_node = GET_BE_U_4(ap->orig_node); 194 dest_node = GET_BE_U_4(ap->dest_node); 195 ND_PRINT("TIPC v%u.0 %u.%u.%u:%u > %u.%u.%u:%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 196 TIPC_VER(w0), 197 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node), 198 orig_port, 199 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node), 200 dest_port, 201 hsize*4, msize, 202 tok2str(tipcuser_values, "unknown", user), 203 tok2str(tipcmtype_values, "Unknown", mtype)); 204 205 if (ndo->ndo_vflag) { 206 broadcast_ack = TIPC_BROADCAST_ACK(w1); 207 w2 = GET_BE_U_4(ap->w2); 208 link_ack = TIPC_LINK_ACK(w2); 209 link_seq = TIPC_LINK_SEQ(w2); 210 ND_PRINT("\n\tPrevious Node %u.%u.%u, Broadcast Ack %u, Link Ack %u, Link Sequence %u", 211 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 212 broadcast_ack, link_ack, link_seq); 213 } 214 } 215 } 216 217 UNALIGNED_OK 218 static void 219 print_internal(netdissect_options *ndo, const struct internal_tipc_pkthdr *ap) 220 { 221 uint32_t w0, w1, w2, w4, w5, w9; 222 u_int user; 223 u_int hsize; 224 u_int msize; 225 u_int mtype; 226 u_int seq_gap; 227 u_int broadcast_ack; 228 u_int bc_gap_after; 229 u_int bc_gap_to; 230 u_int prev_node; 231 u_int last_sent_frag; 232 u_int next_sent_frag; 233 u_int sess_no; 234 u_int orig_node; 235 u_int dest_node; 236 u_int trans_seq; 237 u_int msg_cnt; 238 u_int link_tol; 239 240 w0 = GET_BE_U_4(ap->w0); 241 user = TIPC_USER(w0); 242 hsize = TIPC_HSIZE(w0); 243 msize = TIPC_MSIZE(w0); 244 w1 = GET_BE_U_4(ap->w1); 245 mtype = TIPC_MTYPE(w1); 246 orig_node = GET_BE_U_4(ap->orig_node); 247 dest_node = GET_BE_U_4(ap->dest_node); 248 ND_PRINT("TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s (0x%08x)", 249 TIPC_VER(w0), 250 TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node), 251 TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node), 252 hsize*4, msize, 253 tok2str(tipcuser_values, "unknown", user), 254 tok2str(tipcmtype_values, "Unknown", mtype), w1); 255 256 if (ndo->ndo_vflag) { 257 seq_gap = TIPC_SEQ_GAP(w1); 258 broadcast_ack = TIPC_BROADCAST_ACK(w1); 259 w2 = GET_BE_U_4(ap->w2); 260 bc_gap_after = TIPC_BC_GAP_AFTER(w2); 261 bc_gap_to = TIPC_BC_GAP_TO(w2); 262 prev_node = GET_BE_U_4(ap->prev_node); 263 w4 = GET_BE_U_4(ap->w4); 264 last_sent_frag = TIPC_LAST_SENT_FRAG(w4); 265 next_sent_frag = TIPC_NEXT_SENT_FRAG(w4); 266 w5 = GET_BE_U_4(ap->w5); 267 sess_no = TIPC_SESS_NO(w5); 268 trans_seq = GET_BE_U_4(ap->trans_seq); 269 w9 = GET_BE_U_4(ap->w9); 270 msg_cnt = TIPC_MSG_CNT(w9); 271 link_tol = TIPC_LINK_TOL(w9); 272 ND_PRINT("\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", 273 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 274 sess_no, broadcast_ack, seq_gap, bc_gap_after, bc_gap_to, 275 last_sent_frag, next_sent_frag, trans_seq, msg_cnt, 276 link_tol); 277 } 278 } 279 280 static void 281 print_link_conf(netdissect_options *ndo, const struct link_conf_tipc_pkthdr *ap) 282 { 283 uint32_t w0, w1, w5; 284 u_int user; 285 u_int hsize; 286 u_int msize; 287 u_int mtype; 288 u_int node_sig; 289 u_int prev_node; 290 u_int dest_domain; 291 u_int ntwrk_id; 292 u_int media_id; 293 294 w0 = GET_BE_U_4(ap->w0); 295 user = TIPC_USER(w0); 296 hsize = TIPC_HSIZE(w0); 297 msize = TIPC_MSIZE(w0); 298 w1 = GET_BE_U_4(ap->w1); 299 mtype = TIPC_MTYPE(w1); 300 dest_domain = GET_BE_U_4(ap->dest_domain); 301 prev_node = GET_BE_U_4(ap->prev_node); 302 303 ND_PRINT("TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s", 304 TIPC_VER(w0), 305 TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node), 306 TIPC_ZONE(dest_domain), TIPC_CLUSTER(dest_domain), TIPC_NODE(dest_domain), 307 hsize*4, msize, 308 tok2str(tipcuser_values, "unknown", user), 309 tok2str(tipc_linkconf_mtype_values, "Unknown", mtype)); 310 if (ndo->ndo_vflag) { 311 node_sig = TIPC_NODE_SIG(w1); 312 ntwrk_id = GET_BE_U_4(ap->ntwrk_id); 313 w5 = GET_BE_U_4(ap->w5); 314 media_id = TIPC_MEDIA_ID(w5); 315 ND_PRINT("\n\tNodeSignature %u, network_id %u, media_id %u", 316 node_sig, ntwrk_id, media_id); 317 } 318 } 319 320 UNALIGNED_OK 321 void 322 tipc_print(netdissect_options *ndo, const u_char *bp, u_int length _U_, 323 u_int caplen _U_) 324 { 325 const struct tipc_pkthdr *ap; 326 uint32_t w0; 327 u_int user; 328 329 ndo->ndo_protocol = "tipc"; 330 ap = (const struct tipc_pkthdr *)bp; 331 w0 = GET_BE_U_4(ap->w0); 332 user = TIPC_USER(w0); 333 334 switch (user) { 335 case TIPC_USER_LOW_IMPORTANCE: 336 case TIPC_USER_MEDIUM_IMPORTANCE: 337 case TIPC_USER_HIGH_IMPORTANCE: 338 case TIPC_USER_CRITICAL_IMPORTANCE: 339 case TIPC_USER_NAME_DISTRIBUTOR: 340 case TIPC_USER_CONN_MANAGER: 341 print_payload(ndo, (const struct payload_tipc_pkthdr *)bp); 342 break; 343 344 case TIPC_USER_LINK_CONFIG: 345 print_link_conf(ndo, (const struct link_conf_tipc_pkthdr *)bp); 346 break; 347 348 case TIPC_USER_BCAST_PROTOCOL: 349 case TIPC_USER_MSG_BUNDLER: 350 case TIPC_USER_LINK_PROTOCOL: 351 case TIPC_USER_CHANGEOVER_PROTOCOL: 352 case TIPC_USER_MSG_FRAGMENTER: 353 print_internal(ndo, (const struct internal_tipc_pkthdr *)bp); 354 break; 355 356 } 357 } 358
Indexes created Fri Oct 02 00:25:19 UTC 2026