contrib/tcpdump/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 /* \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