The Tcpdump Group git mirrors - tcpdump/blob - print-tipc.c

   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 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include <tcpdump-stdinc.h>
  27
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include "netdissect.h"
  32 #include "ether.h"
  33 #include "ethertype.h"
  34 #include "extract.h"                    /* must come after interface.h */
  35
  36 static const char tstr[] = "[|TIPC]";
  37
  38 /*
  39  * Transparent Inter-Process Communication (TIPC) protocol.
  40  *
  41  *      http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html
  42  *      http://tipc.sourceforge.net/doc/tipc_message_formats.html
  43  */
  44
  45 #define TIPC_USER_LOW_IMPORTANCE        0
  46 #define TIPC_USER_MEDIUM_IMPORTANCE     1
  47 #define TIPC_USER_HIGH_IMPORTANCE       2
  48 #define TIPC_USER_CRITICAL_IMPORTANCE   3
  49 #define TIPC_USER_BCAST_PROTOCOL        5
  50 #define TIPC_USER_MSG_BUNDLER           6
  51 #define TIPC_USER_LINK_PROTOCOL         7
  52 #define TIPC_USER_CONN_MANAGER          8
  53 #define TIPC_USER_CHANGEOVER_PROTOCOL   10
  54 #define TIPC_USER_NAME_DISTRIBUTOR      11
  55 #define TIPC_USER_MSG_FRAGMENTER        12
  56 #define TIPC_USER_LINK_CONFIG           13
  57
  58 #define TIPC_CONN_MSG                   0
  59 #define TIPC_DIRECT_MSG                 1
  60 #define TIPC_NAMED_MSG                  2
  61 #define TIPC_MCAST_MSG                  3
  62
  63 #define TIPC_ZONE(addr)         (((addr) >> 24) & 0xFF)
  64 #define TIPC_CLUSTER(addr)      (((addr) >> 12) & 0xFFF)
  65 #define TIPC_NODE(addr)         (((addr) >> 0) & 0xFFF)
  66
  67 struct tipc_pkthdr {
  68         u_int32_t w0;
  69         u_int32_t w1;
  70 };
  71
  72 #define TIPC_VER(w0)            (((w0) >> 29) & 0x07)
  73 #define TIPC_USER(w0)           (((w0) >> 25) & 0x0F)
  74 #define TIPC_HSIZE(w0)          (((w0) >> 21) & 0x0F)
  75 #define TIPC_MSIZE(w0)          (((w0) >> 0) & 0xFFFF)
  76 #define TIPC_MTYPE(w1)          (((w1) >> 29) & 0x07)
  77 #define TIPC_BROADCAST_ACK(w1)  (((w1) >> 0) & 0xFFFF)
  78 #define TIPC_LINK_ACK(w2)       (((w2) >> 16) & 0xFFFF)
  79 #define TIPC_LINK_SEQ(w2)       (((w2) >> 0) & 0xFFFF)
  80
  81 static const struct tok tipcuser_values[] = {
  82     { TIPC_USER_LOW_IMPORTANCE,      "Low Importance Data payload" },
  83     { TIPC_USER_MEDIUM_IMPORTANCE,   "Medium Importance Data payload" },
  84     { TIPC_USER_HIGH_IMPORTANCE,     "High Importance Data payload" },
  85     { TIPC_USER_CRITICAL_IMPORTANCE, "Critical Importance Data payload" },
  86     { TIPC_USER_BCAST_PROTOCOL,      "Broadcast Link Protocol internal" },
  87     { TIPC_USER_MSG_BUNDLER,         "Message Bundler Protocol internal" },
  88     { TIPC_USER_LINK_PROTOCOL,       "Link State Protocol internal" },
  89     { TIPC_USER_CONN_MANAGER,        "Connection Manager internal" },
  90     { TIPC_USER_CHANGEOVER_PROTOCOL, "Link Changeover Protocol internal" },
  91     { TIPC_USER_NAME_DISTRIBUTOR,    "Name Table Update Protocol internal" },
  92     { TIPC_USER_MSG_FRAGMENTER,      "Message Fragmentation Protocol internal" },
  93     { TIPC_USER_LINK_CONFIG,         "Neighbor Detection Protocol internal" },
  94     { 0, NULL }
  95 };
  96
  97 static const struct tok tipcmtype_values[] = {
  98     { TIPC_CONN_MSG,   "CONN_MSG" },
  99     { TIPC_DIRECT_MSG, "MCAST_MSG" },
 100     { TIPC_NAMED_MSG,  "NAMED_MSG" },
 101     { TIPC_MCAST_MSG,  "DIRECT_MSG" },
 102     { 0, NULL }
 103 };
 104
 105 static const struct tok tipc_linkconf_mtype_values[] = {
 106     { 0,   "Link request" },
 107     { 1,   "Link response" },
 108     { 0, NULL }
 109 };
 110
 111 struct payload_tipc_pkthdr {
 112         u_int32_t w0;
 113         u_int32_t w1;
 114         u_int32_t w2;
 115         u_int32_t prev_node;
 116         u_int32_t orig_port;
 117         u_int32_t dest_port;
 118         u_int32_t orig_node;
 119         u_int32_t dest_node;
 120         u_int32_t name_type;
 121         u_int32_t w9;
 122         u_int32_t wA;
 123 };
 124
 125 struct  internal_tipc_pkthdr {
 126         u_int32_t w0;
 127         u_int32_t w1;
 128         u_int32_t w2;
 129         u_int32_t prev_node;
 130         u_int32_t w4;
 131         u_int32_t w5;
 132         u_int32_t orig_node;
 133         u_int32_t dest_node;
 134         u_int32_t trans_seq;
 135         u_int32_t w9;
 136 };
 137
 138 #define TIPC_SEQ_GAP(w1)        (((w1) >> 16) & 0x1FFF)
 139 #define TIPC_BC_GAP_AFTER(w2)   (((w2) >> 16) & 0xFFFF)
 140 #define TIPC_BC_GAP_TO(w2)      (((w2) >> 0) & 0xFFFF)
 141 #define TIPC_LAST_SENT_FRAG(w4) (((w4) >> 16) & 0xFFFF)
 142 #define TIPC_NEXT_SENT_FRAG(w4) (((w4) >> 0) & 0xFFFF)
 143 #define TIPC_SESS_NO(w5)        (((w5) >> 16) & 0xFFFF)
 144 #define TIPC_MSG_CNT(w9)        (((w9) >> 16) & 0xFFFF)
 145 #define TIPC_LINK_TOL(w9)       (((w9) >> 0) & 0xFFFF)
 146
 147 struct link_conf_tipc_pkthdr {
 148         u_int32_t w0;
 149         u_int32_t w1;
 150         u_int32_t dest_domain;
 151         u_int32_t prev_node;
 152         u_int32_t ntwrk_id;
 153         u_int32_t w5;
 154         u_int8_t media_address[16];
 155 };
 156
 157 #define TIPC_NODE_SIG(w1)       (((w1) >> 0) & 0xFFFF)
 158 #define TIPC_MEDIA_ID(w5)       (((w5) >> 0) & 0xFF)
 159
 160 static void
 161 print_payload(netdissect_options *ndo, const struct payload_tipc_pkthdr *ap)
 162 {
 163         u_int32_t w0, w1, w2;
 164         u_int user;
 165         u_int hsize;
 166         u_int msize;
 167         u_int mtype;
 168         u_int broadcast_ack;
 169         u_int link_ack;
 170         u_int link_seq;
 171         u_int prev_node;
 172         u_int orig_port;
 173         u_int dest_port;
 174         u_int orig_node;
 175         u_int dest_node;
 176
 177         ND_TCHECK(ap->dest_port);
 178         w0 = EXTRACT_32BITS(&ap->w0);
 179         user = TIPC_USER(w0);
 180         hsize = TIPC_HSIZE(w0);
 181         msize = TIPC_MSIZE(w0);
 182         w1 = EXTRACT_32BITS(&ap->w1);
 183         mtype = TIPC_MTYPE(w1);
 184         prev_node = EXTRACT_32BITS(&ap->prev_node);
 185         orig_port = EXTRACT_32BITS(&ap->orig_port);
 186         dest_port = EXTRACT_32BITS(&ap->dest_port);
 187         if (hsize <= 6) {
 188                 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
 189                     TIPC_VER(w0),
 190                     TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
 191                     orig_port, dest_port,
 192                     hsize*4, msize,
 193                     tok2str(tipcuser_values, "unknown", user),
 194                     tok2str(tipcmtype_values, "Unknown", mtype)));
 195         } else {
 196                 ND_TCHECK(ap->dest_node);
 197                 orig_node = EXTRACT_32BITS(&ap->orig_node);
 198                 dest_node = EXTRACT_32BITS(&ap->dest_node);
 199                 ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u:%u > %u.%u.%u:%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
 200                     TIPC_VER(w0),
 201                     TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node),
 202                     orig_port,
 203                     TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node),
 204                     dest_port,
 205                     hsize*4, msize,
 206                     tok2str(tipcuser_values, "unknown", user),
 207                     tok2str(tipcmtype_values, "Unknown", mtype)));
 208
 209                 if (ndo->ndo_vflag) {
 210                         broadcast_ack = TIPC_BROADCAST_ACK(w1);
 211                         w2 = EXTRACT_32BITS(&ap->w2);
 212                         link_ack = TIPC_LINK_ACK(w2);
 213                         link_seq = TIPC_LINK_SEQ(w2);
 214                         ND_PRINT((ndo, "\n\tPrevious Node %u.%u.%u, Broadcast Ack %u, Link Ack %u, Link Sequence %u",
 215                             TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
 216                             broadcast_ack, link_ack, link_seq));
 217                 }
 218         }
 219         return;
 220
 221 trunc:
 222         ND_PRINT((ndo, "%s", tstr));
 223 }
 224
 225 static void
 226 print_internal(netdissect_options *ndo, const struct internal_tipc_pkthdr *ap)
 227 {
 228         u_int32_t w0, w1, w2, w4, w5, w9;
 229         u_int user;
 230         u_int hsize;
 231         u_int msize;
 232         u_int mtype;
 233         u_int seq_gap;
 234         u_int broadcast_ack;
 235         u_int bc_gap_after;
 236         u_int bc_gap_to;
 237         u_int prev_node;
 238         u_int last_sent_frag;
 239         u_int next_sent_frag;
 240         u_int sess_no;
 241         u_int orig_node;
 242         u_int dest_node;
 243         u_int trans_seq;
 244         u_int msg_cnt;
 245         u_int link_tol;
 246
 247         ND_TCHECK(ap->dest_node);
 248         w0 = EXTRACT_32BITS(&ap->w0);
 249         user = TIPC_USER(w0);
 250         hsize = TIPC_HSIZE(w0);
 251         msize = TIPC_MSIZE(w0);
 252         w1 = EXTRACT_32BITS(&ap->w1);
 253         mtype = TIPC_MTYPE(w1);
 254         orig_node = EXTRACT_32BITS(&ap->orig_node);
 255         dest_node = EXTRACT_32BITS(&ap->dest_node);
 256         ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s (0x%08x)",
 257             TIPC_VER(w0),
 258             TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node),
 259             TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node),
 260             hsize*4, msize,
 261             tok2str(tipcuser_values, "unknown", user),
 262             tok2str(tipcmtype_values, "Unknown", mtype), w1));
 263
 264         if (ndo->ndo_vflag) {
 265                 ND_TCHECK(*ap);
 266                 seq_gap = TIPC_SEQ_GAP(w1);
 267                 broadcast_ack = TIPC_BROADCAST_ACK(w1);
 268                 w2 = EXTRACT_32BITS(&ap->w2);
 269                 bc_gap_after = TIPC_BC_GAP_AFTER(w2);
 270                 bc_gap_to = TIPC_BC_GAP_TO(w2);
 271                 prev_node = EXTRACT_32BITS(&ap->prev_node);
 272                 w4 = EXTRACT_32BITS(&ap->w4);
 273                 last_sent_frag = TIPC_LAST_SENT_FRAG(w4);
 274                 next_sent_frag = TIPC_NEXT_SENT_FRAG(w4);
 275                 w5 = EXTRACT_32BITS(&ap->w5);
 276                 sess_no = TIPC_SESS_NO(w5);
 277                 trans_seq = EXTRACT_32BITS(&ap->trans_seq);
 278                 w9 = EXTRACT_32BITS(&ap->w9);
 279                 msg_cnt = TIPC_MSG_CNT(w9);
 280                 link_tol = TIPC_LINK_TOL(w9);
 281                 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",
 282                     TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
 283                     sess_no, broadcast_ack, seq_gap, bc_gap_after, bc_gap_to,
 284                     last_sent_frag, next_sent_frag, trans_seq, msg_cnt,
 285                     link_tol));
 286         }
 287         return;
 288
 289 trunc:
 290         ND_PRINT((ndo, "%s", tstr));
 291 }
 292
 293 static void
 294 print_link_conf(netdissect_options *ndo, const struct link_conf_tipc_pkthdr *ap)
 295 {
 296         u_int32_t w0, w1, w5;
 297         u_int user;
 298         u_int hsize;
 299         u_int msize;
 300         u_int mtype;
 301         u_int node_sig;
 302         u_int prev_node;
 303         u_int dest_domain;
 304         u_int ntwrk_id;
 305         u_int media_id;
 306
 307         ND_TCHECK(ap->prev_node);
 308         w0 = EXTRACT_32BITS(&ap->w0);
 309         user = TIPC_USER(w0);
 310         hsize = TIPC_HSIZE(w0);
 311         msize = TIPC_MSIZE(w0);
 312         w1 = EXTRACT_32BITS(&ap->w1);
 313         mtype = TIPC_MTYPE(w1);
 314         prev_node = EXTRACT_32BITS(&ap->prev_node);
 315         dest_domain = EXTRACT_32BITS(&ap->dest_domain);
 316         prev_node = EXTRACT_32BITS(&ap->prev_node);
 317
 318         ND_PRINT((ndo, "TIPC v%u.0 %u.%u.%u > %u.%u.%u, headerlength %u bytes, MessageSize %u bytes, %s, messageType %s",
 319             TIPC_VER(w0),
 320             TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
 321             TIPC_ZONE(dest_domain), TIPC_CLUSTER(dest_domain), TIPC_NODE(dest_domain),
 322             hsize*4, msize,
 323             tok2str(tipcuser_values, "unknown", user),
 324             tok2str(tipc_linkconf_mtype_values, "Unknown", mtype)));
 325         if (ndo->ndo_vflag) {
 326                 ND_TCHECK(ap->w5);
 327                 node_sig = TIPC_NODE_SIG(w1);
 328                 ntwrk_id = EXTRACT_32BITS(&ap->ntwrk_id);
 329                 w5 = EXTRACT_32BITS(&ap->w5);
 330                 media_id = TIPC_MEDIA_ID(w5);
 331                 ND_PRINT((ndo, "\n\tNodeSignature %u, network_id %u, media_id %u",
 332                     node_sig, ntwrk_id, media_id));
 333         }
 334         return;
 335
 336 trunc:
 337         ND_PRINT((ndo, "%s", tstr));
 338 }
 339
 340 void
 341 tipc_print(netdissect_options *ndo, const u_char *bp, u_int length _U_,
 342     u_int caplen _U_)
 343 {
 344         const struct tipc_pkthdr *ap;
 345         u_int32_t w0;
 346         u_int user;
 347
 348         ap = (struct tipc_pkthdr *)bp;
 349         ND_TCHECK(ap->w0);
 350         w0 = EXTRACT_32BITS(&ap->w0);
 351         user = TIPC_USER(w0);
 352
 353         switch (user)
 354         {
 355                 case TIPC_USER_LOW_IMPORTANCE:
 356                 case TIPC_USER_MEDIUM_IMPORTANCE:
 357                 case TIPC_USER_HIGH_IMPORTANCE:
 358                 case TIPC_USER_CRITICAL_IMPORTANCE:
 359                 case TIPC_USER_NAME_DISTRIBUTOR:
 360                 case TIPC_USER_CONN_MANAGER:
 361                         print_payload(ndo, (struct payload_tipc_pkthdr *)bp);
 362                         break;
 363
 364                 case TIPC_USER_LINK_CONFIG:
 365                         print_link_conf(ndo, (struct link_conf_tipc_pkthdr *)bp);
 366                         break;
 367
 368                 case TIPC_USER_BCAST_PROTOCOL:
 369                 case TIPC_USER_MSG_BUNDLER:
 370                 case TIPC_USER_LINK_PROTOCOL:
 371                 case TIPC_USER_CHANGEOVER_PROTOCOL:
 372                 case TIPC_USER_MSG_FRAGMENTER:
 373                         print_internal(ndo, (struct internal_tipc_pkthdr *)bp);
 374                         break;
 375
 376         }
 377         return;
 378
 379 trunc:
 380         ND_PRINT((ndo, "%s", tstr));
 381 }
 382
 383 /*
 384  * Local Variables:
 385  * c-style: bsd
 386  * End:
 387  */
 388