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 #ifndef lint
  23 static const char rcsid[] _U_ =
  24     "@(#) $Header: /tcpdump/master/tcpdump/print-arp.c,v 1.66 2006-03-03 22:53:21 hannes Exp $ (LBL)";
  25 #endif
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 #include <tcpdump-stdinc.h>
  32
  33 #include <stdio.h>
  34 #include <string.h>
  35
  36 #include "netdissect.h"
  37 #include "addrtoname.h"
  38 #include "ether.h"
  39 #include "ethertype.h"
  40 #include "extract.h"                    /* must come after interface.h */
  41
  42 /*
  43  * Transparent Inter-Process Communication (TIPC) protocol.
  44  *
  45  *      http://tipc.sourceforge.net/doc/draft-spec-tipc-07.html
  46  *      http://tipc.sourceforge.net/doc/tipc_message_formats.html
  47  */
  48
  49 #define TIPC_USER_LOW_IMPORTANCE        0
  50 #define TIPC_USER_MEDIUM_IMPORTANCE     1
  51 #define TIPC_USER_HIGH_IMPORTANCE       2
  52 #define TIPC_USER_CRITICAL_IMPORTANCE   3
  53 #define TIPC_USER_BCAST_PROTOCOL        5
  54 #define TIPC_USER_MSG_BUNDLER           6
  55 #define TIPC_USER_LINK_PROTOCOL         7
  56 #define TIPC_USER_CONN_MANAGER          8
  57 #define TIPC_USER_CHANGEOVER_PROTOCOL   10
  58 #define TIPC_USER_NAME_DISTRIBUTOR      11
  59 #define TIPC_USER_MSG_FRAGMENTER        12
  60 #define TIPC_USER_LINK_CONFIG           13
  61
  62 #define TIPC_CONN_MSG                   0
  63 #define TIPC_DIRECT_MSG                 1
  64 #define TIPC_NAMED_MSG                  2
  65 #define TIPC_MCAST_MSG                  3
  66
  67 #define TIPC_ZONE(addr)         (((addr) >> 24) & 0xFF)
  68 #define TIPC_CLUSTER(addr)      (((addr) >> 12) & 0xFFF)
  69 #define TIPC_NODE(addr)         (((addr) >> 0) & 0xFFF)
  70
  71 struct tipc_pkthdr {
  72         u_int32_t w0;
  73         u_int32_t w1;
  74 };
  75
  76 #define TIPC_VER(w0)            (((w0) >> 29) & 0x07)
  77 #define TIPC_USER(w0)           (((w0) >> 25) & 0x0F)
  78 #define TIPC_HSIZE(w0)          (((w0) >> 21) & 0x0F)
  79 #define TIPC_MSIZE(w0)          (((w0) >> 0) & 0xFFFF)
  80 #define TIPC_MTYPE(w1)          (((w1) >> 29) & 0x07)
  81 #define TIPC_BROADCAST_ACK(w1)  (((w1) >> 0) & 0xFFFF)
  82 #define TIPC_LINK_ACK(w2)       (((w2) >> 16) & 0xFFFF)
  83 #define TIPC_LINK_SEQ(w2)       (((w2) >> 0) & 0xFFFF)
  84
  85 static const struct tok tipcuser_values[] = {
  86     { TIPC_USER_LOW_IMPORTANCE,      "Low Importance Data payload" },
  87     { TIPC_USER_MEDIUM_IMPORTANCE,   "Medium Importance Data payload" },
  88     { TIPC_USER_HIGH_IMPORTANCE,     "High Importance Data payload" },
  89     { TIPC_USER_CRITICAL_IMPORTANCE, "Critical Importance Data payload" },
  90     { TIPC_USER_BCAST_PROTOCOL,      "Broadcast Link Protocol internal" },
  91     { TIPC_USER_MSG_BUNDLER,         "Message Bundler Protocol internal" },
  92     { TIPC_USER_LINK_PROTOCOL,       "Link State Protocol internal" },
  93     { TIPC_USER_CONN_MANAGER,        "Connection Manager internal" },
  94     { TIPC_USER_CHANGEOVER_PROTOCOL, "Link Changeover Protocol internal" },
  95     { TIPC_USER_NAME_DISTRIBUTOR,    "Name Table Update Protocol internal" },
  96     { TIPC_USER_MSG_FRAGMENTER,      "Message Fragmentation Protocol internal" },
  97     { TIPC_USER_LINK_CONFIG,         "Neighbor Detection Protocol internal" },
  98     { 0, NULL }
  99 };
 100
 101 static const struct tok tipcmtype_values[] = {
 102     { TIPC_CONN_MSG,   "CONN_MSG" },
 103     { TIPC_DIRECT_MSG, "MCAST_MSG" },
 104     { TIPC_NAMED_MSG,  "NAMED_MSG" },
 105     { TIPC_MCAST_MSG,  "DIRECT_MSG" },
 106     { 0, NULL }
 107 };
 108
 109 static const struct tok tipc_linkconf_mtype_values[] = {
 110     { 0,   "Link request" },
 111     { 1,   "Link response" },
 112     { 0, NULL }
 113 };
 114
 115 struct payload_tipc_pkthdr {
 116         u_int32_t w0;
 117         u_int32_t w1;
 118         u_int32_t w2;
 119         u_int32_t prev_node;
 120         u_int32_t orig_port;
 121         u_int32_t dest_port;
 122         u_int32_t orig_node;
 123         u_int32_t dest_node;
 124         u_int32_t name_type;
 125         u_int32_t w9;
 126         u_int32_t wA;
 127 };
 128
 129 struct  internal_tipc_pkthdr {
 130         u_int32_t w0;
 131         u_int32_t w1;
 132         u_int32_t w2;
 133         u_int32_t prev_node;
 134         u_int32_t w4;
 135         u_int32_t w5;
 136         u_int32_t orig_node;
 137         u_int32_t dest_node;
 138         u_int32_t trans_seq;
 139         u_int32_t w9;
 140 };
 141
 142 #define TIPC_SEQ_GAP(w1)        (((w1) >> 16) & 0x1FFF)
 143 #define TIPC_BC_GAP_AFTER(w2)   (((w2) >> 16) & 0xFFFF)
 144 #define TIPC_BC_GAP_TO(w2)      (((w2) >> 0) & 0xFFFF)
 145 #define TIPC_LAST_SENT_FRAG(w4) (((w4) >> 16) & 0xFFFF)
 146 #define TIPC_NEXT_SENT_FRAG(w4) (((w4) >> 0) & 0xFFFF)
 147 #define TIPC_SESS_NO(w5)        (((w5) >> 16) & 0xFFFF)
 148 #define TIPC_MSG_CNT(w9)        (((w9) >> 16) & 0xFFFF)
 149 #define TIPC_LINK_TOL(w9)       (((w9) >> 0) & 0xFFFF)
 150
 151 struct link_conf_tipc_pkthdr {
 152         u_int32_t w0;
 153         u_int32_t w1;
 154         u_int32_t dest_domain;
 155         u_int32_t prev_node;
 156         u_int32_t ntwrk_id;
 157         u_int32_t w5;
 158         u_int8_t media_address[16];
 159 };
 160
 161 #define TIPC_NODE_SIG(w1)       (((w1) >> 0) & 0xFFFF)
 162 #define TIPC_MEDIA_ID(w5)       (((w5) >> 0) & 0xFF)
 163
 164 static void
 165 print_payload(netdissect_options *ndo, struct payload_tipc_pkthdr *ap)
 166 {
 167         u_int32_t w0, w1, w2;
 168         u_int user;
 169         u_int hsize;
 170         u_int msize;
 171         u_int mtype;
 172         u_int broadcast_ack;
 173         u_int link_ack;
 174         u_int link_seq;
 175         u_int prev_node;
 176         u_int orig_port;
 177         u_int dest_port;
 178         u_int orig_node;
 179         u_int dest_node;
 180
 181         ND_TCHECK(*ap);
 182         w0 = EXTRACT_32BITS(&ap->w0);
 183         user = TIPC_USER(w0);
 184         hsize = TIPC_HSIZE(w0);
 185         msize = TIPC_MSIZE(w0);
 186         w1 = EXTRACT_32BITS(&ap->w1);
 187         mtype = TIPC_MTYPE(w1);
 188         broadcast_ack = TIPC_BROADCAST_ACK(w1);
 189         w2 = EXTRACT_32BITS(&ap->w2);
 190         link_ack = TIPC_LINK_ACK(w2);
 191         link_seq = TIPC_LINK_SEQ(w2);
 192         orig_node = EXTRACT_32BITS(&ap->orig_node);
 193         orig_port = EXTRACT_32BITS(&ap->orig_port);
 194         dest_node = EXTRACT_32BITS(&ap->dest_node);
 195         dest_port = EXTRACT_32BITS(&ap->dest_port);
 196         prev_node = EXTRACT_32BITS(&ap->prev_node);
 197
 198         ND_PRINT((ndo, " messageType %s: <%u.%u.%u> : %u > <%u.%u.%u> : %u",
 199             tok2str(tipcmtype_values, "Unknown", mtype),
 200             TIPC_ZONE(orig_node), TIPC_CLUSTER(orig_node), TIPC_NODE(orig_node),
 201             orig_port,
 202             TIPC_ZONE(dest_node), TIPC_CLUSTER(dest_node), TIPC_NODE(dest_node),
 203             dest_port));
 204         if (ndo->ndo_vflag) {
 205                 ND_PRINT((ndo, "\n\tPrevious Node <%u.%u.%u>, Broadcast Ack %u, Link Ack %u, Link Sequence %u",
 206                     TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
 207                     broadcast_ack, link_ack, link_seq));
 208         }
 209         return;
 210
 211 trunc:
 212         ND_PRINT((ndo, "[|TIPC]"));
 213 }
 214
 215 static void
 216 print_internal(netdissect_options *ndo, struct internal_tipc_pkthdr *ap)
 217 {
 218         u_int32_t w0, w1, w2, w4, w5, w9;
 219         u_int hsize;
 220         u_int msize;
 221         u_int mtype;
 222         u_int seq_gap;
 223         u_int broadcast_ack;
 224         u_int bc_gap_after;
 225         u_int bc_gap_to;
 226         u_int prev_node;
 227         u_int last_sent_frag;
 228         u_int next_sent_frag;
 229         u_int sess_no;
 230         u_int orig_node;
 231         u_int dest_node;
 232         u_int trans_seq;
 233         u_int msg_cnt;
 234         u_int link_tol;
 235
 236         ND_TCHECK(*ap);
 237         w0 = EXTRACT_32BITS(&ap->w0);
 238         hsize = TIPC_HSIZE(w0);
 239         msize = TIPC_MSIZE(w0);
 240         w1 = EXTRACT_32BITS(&ap->w1);
 241         mtype = TIPC_MTYPE(w1);
 242         seq_gap = TIPC_SEQ_GAP(w1);
 243         broadcast_ack = TIPC_BROADCAST_ACK(w1);
 244         w2 = EXTRACT_32BITS(&ap->w2);
 245         bc_gap_after = TIPC_BC_GAP_AFTER(w2);
 246         bc_gap_to = TIPC_BC_GAP_TO(w2);
 247         prev_node = EXTRACT_32BITS(&ap->prev_node);
 248         w4 = EXTRACT_32BITS(&ap->w4);
 249         last_sent_frag = TIPC_LAST_SENT_FRAG(w4);
 250         next_sent_frag = TIPC_NEXT_SENT_FRAG(w4);
 251         w5 = EXTRACT_32BITS(&ap->w5);
 252         sess_no = TIPC_SESS_NO(w5);
 253         orig_node = EXTRACT_32BITS(&ap->orig_node);
 254         dest_node = EXTRACT_32BITS(&ap->dest_node);
 255         trans_seq = EXTRACT_32BITS(&ap->trans_seq);
 256         w9 = EXTRACT_32BITS(&ap->w9);
 257         msg_cnt = TIPC_MSG_CNT(w9);
 258         link_tol = TIPC_LINK_TOL(w9);
 259
 260         ND_PRINT((ndo, " messageType %s: <%u.%u.%u> > <%u.%u.%u>",
 261             tok2str(tipcmtype_values, "Unknown", mtype),
 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         if (ndo->ndo_vflag) {
 265                 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",
 266                     TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
 267                     sess_no, broadcast_ack, seq_gap, bc_gap_after, bc_gap_to,
 268                     last_sent_frag, next_sent_frag, trans_seq, msg_cnt,
 269                     link_tol));
 270         }
 271         return;
 272
 273 trunc:
 274         ND_PRINT((ndo, "[|TIPC]"));
 275 }
 276
 277 static void
 278 print_link_conf(netdissect_options *ndo, struct link_conf_tipc_pkthdr *ap)
 279 {
 280         u_int32_t w0, w1, w5;
 281         u_int user;
 282         u_int mtype;
 283         u_int node_sig;
 284         u_int prev_node;
 285         u_int dest_domain;
 286         u_int ntwrk_id;
 287         u_int media_id;
 288
 289         ND_TCHECK(*ap);
 290         w0 = EXTRACT_32BITS(&ap->w0);
 291         user = TIPC_USER(w0);
 292         w1 = EXTRACT_32BITS(&ap->w1);
 293         mtype = TIPC_MTYPE(w1);
 294         node_sig = TIPC_NODE_SIG(w1);
 295         prev_node = EXTRACT_32BITS(&ap->prev_node);
 296         dest_domain = EXTRACT_32BITS(&ap->dest_domain);
 297         prev_node = EXTRACT_32BITS(&ap->prev_node);
 298         ntwrk_id = EXTRACT_32BITS(&ap->ntwrk_id);
 299         w5 = EXTRACT_32BITS(&ap->w5);
 300         media_id = TIPC_MEDIA_ID(w5);
 301
 302         ND_PRINT((ndo, " messageType %s: <%u.%u.%u> > <%u.%u.%u>",
 303             tok2str(tipc_linkconf_mtype_values, "Unknown", mtype),
 304             TIPC_ZONE(prev_node), TIPC_CLUSTER(prev_node), TIPC_NODE(prev_node),
 305             TIPC_ZONE(dest_domain), TIPC_CLUSTER(dest_domain), TIPC_NODE(dest_domain)));
 306         if (ndo->ndo_vflag) {
 307                 ND_PRINT((ndo, "\n\tNodeSignature %u, network_id %u, media_id %u",
 308                     node_sig, ntwrk_id, media_id));
 309         }
 310         return;
 311
 312 trunc:
 313         ND_PRINT((ndo, "[|TIPC]"));
 314 }
 315
 316 void
 317 tipc_print(netdissect_options *ndo, const u_char *bp, u_int length _U_,
 318     u_int caplen _U_)
 319 {
 320         struct tipc_pkthdr *ap;
 321         u_int32_t w0, w1;
 322         u_int user;
 323         u_int hsize;
 324         u_int msize;
 325
 326         ap = (struct tipc_pkthdr *)bp;
 327         ND_TCHECK(ap->w1);
 328         w0 = EXTRACT_32BITS(&ap->w0);
 329         user = TIPC_USER(w0);
 330         hsize = TIPC_HSIZE(w0);
 331         msize = TIPC_MSIZE(w0);
 332         w1 = EXTRACT_32BITS(&ap->w1);
 333         ND_PRINT((ndo, "TIPC v%u.0, headerlength %u bytes, MessageSize %u bytes, %s",
 334             TIPC_VER(w0), hsize*4, msize,
 335             tok2str(tipcuser_values, "unknown", user)));
 336
 337         switch (user)
 338         {
 339                 case TIPC_USER_LOW_IMPORTANCE:
 340                 case TIPC_USER_MEDIUM_IMPORTANCE:
 341                 case TIPC_USER_HIGH_IMPORTANCE:
 342                 case TIPC_USER_CRITICAL_IMPORTANCE:
 343                 case TIPC_USER_NAME_DISTRIBUTOR:
 344                 case TIPC_USER_CONN_MANAGER:
 345                         print_payload(ndo, (struct payload_tipc_pkthdr *)bp);
 346                         break;
 347
 348                 case TIPC_USER_LINK_CONFIG:
 349                         print_link_conf(ndo, (struct link_conf_tipc_pkthdr *)bp);
 350                         break;
 351
 352                 case TIPC_USER_BCAST_PROTOCOL:
 353                 case TIPC_USER_MSG_BUNDLER:
 354                 case TIPC_USER_LINK_PROTOCOL:
 355                 case TIPC_USER_CHANGEOVER_PROTOCOL:
 356                 case TIPC_USER_MSG_FRAGMENTER:
 357                         print_internal(ndo, (struct internal_tipc_pkthdr *)bp);
 358                         break;
 359
 360         }
 361         return;
 362
 363 trunc:
 364         ND_PRINT((ndo, "[|TIPC]"));
 365 }
 366
 367 /*
 368  * Local Variables:
 369  * c-style: bsd
 370  * End:
 371  */
 372