packet-gnutella.c

   1 /* packet-gnutella.c
   2  * Routines for gnutella dissection
   3  * Copyright 2001, B. Johannessen <bob@havoq.com>
   4  *
   5  * $Id: packet-gnutella.c,v 1.7 2001/10/26 18:28:16 gram Exp $
   6  *
   7  * Ethereal - Network traffic analyzer
   8  * By Gerald Combs <gerald@ethereal.com>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  24  */
  25
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33
  34 #ifdef HAVE_SYS_TYPES_H
  35 #include <sys/types.h>
  36 #endif
  37
  38 #ifdef HAVE_NETINET_IN_H
  39 #include <netinet/in.h>
  40 #endif
  41
  42 #include <glib.h>
  43
  44 #ifdef NEED_SNPRINTF_H
  45 #include "snprintf.h"
  46 #endif
  47
  48
  49 #include "packet.h"
  50 #include "packet-gnutella.h"
  51
  52 static int proto_gnutella = -1;
  53
  54 static int hf_gnutella_stream = -1;
  55
  56 static int hf_gnutella_truncated = -1;
  57
  58 static int hf_gnutella_header = -1;
  59 static int hf_gnutella_header_id = -1;
  60 static int hf_gnutella_header_payload = -1;
  61 static int hf_gnutella_header_ttl = -1;
  62 static int hf_gnutella_header_hops = -1;
  63 static int hf_gnutella_header_size = -1;
  64
  65 static int hf_gnutella_pong_payload = -1;
  66 static int hf_gnutella_pong_port = -1;
  67 static int hf_gnutella_pong_ip = -1;
  68 static int hf_gnutella_pong_files = -1;
  69 static int hf_gnutella_pong_kbytes = -1;
  70
  71 static int hf_gnutella_query_payload = -1;
  72 static int hf_gnutella_query_min_speed = -1;
  73 static int hf_gnutella_query_search = -1;
  74
  75 static int hf_gnutella_queryhit_payload = -1;
  76 static int hf_gnutella_queryhit_count = -1;
  77 static int hf_gnutella_queryhit_port = -1;
  78 static int hf_gnutella_queryhit_ip = -1;
  79 static int hf_gnutella_queryhit_speed = -1;
  80 static int hf_gnutella_queryhit_extra = -1;
  81 static int hf_gnutella_queryhit_servent_id = -1;
  82
  83 static int hf_gnutella_queryhit_hit = -1;
  84 static int hf_gnutella_queryhit_hit_index = -1;
  85 static int hf_gnutella_queryhit_hit_size = -1;
  86 static int hf_gnutella_queryhit_hit_name = -1;
  87 static int hf_gnutella_queryhit_hit_extra = -1;
  88
  89 static int hf_gnutella_push_payload = -1;
  90 static int hf_gnutella_push_servent_id = -1;
  91 static int hf_gnutella_push_index = -1;
  92 static int hf_gnutella_push_ip = -1;
  93 static int hf_gnutella_push_port = -1;
  94
  95 static gint ett_gnutella = -1;
  96
  97 static void dissect_gnutella_pong(tvbuff_t *tvb, guint offset, proto_tree *tree, guint size) {
  98
  99         if(offset + size > tvb_length(tvb)) {
 100                 proto_tree_add_item(tree,
 101                         hf_gnutella_truncated,
 102                         tvb,
 103                         offset,
 104                         size,
 105                         FALSE);
 106                 return;
 107         }
 108
 109         proto_tree_add_item(tree,
 110                 hf_gnutella_pong_port,
 111                 tvb,
 112                 offset + GNUTELLA_PONG_PORT_OFFSET,
 113                 GNUTELLA_PORT_LENGTH,
 114                 TRUE);
 115
 116         proto_tree_add_item(tree,
 117                 hf_gnutella_pong_ip,
 118                 tvb,
 119                 offset + GNUTELLA_PONG_IP_OFFSET,
 120                 GNUTELLA_IP_LENGTH,
 121         FALSE);
 122
 123         proto_tree_add_item(tree,
 124                 hf_gnutella_pong_files,
 125                 tvb,
 126                 offset + GNUTELLA_PONG_FILES_OFFSET,
 127                 GNUTELLA_LONG_LENGTH,
 128                 TRUE);
 129
 130         proto_tree_add_item(tree,
 131                 hf_gnutella_pong_kbytes,
 132                 tvb,
 133                 offset + GNUTELLA_PONG_KBYTES_OFFSET,
 134                 GNUTELLA_LONG_LENGTH,
 135                 TRUE);
 136
 137 }
 138
 139 static void dissect_gnutella_query(tvbuff_t *tvb, guint offset, proto_tree *tree, guint size) {
 140
 141         if(offset + size > tvb_length(tvb)) {
 142                 proto_tree_add_item(tree,
 143                         hf_gnutella_truncated,
 144                         tvb,
 145                         offset,
 146                         size,
 147                         FALSE);
 148                 return;
 149         }
 150
 151         proto_tree_add_item(tree,
 152                 hf_gnutella_query_min_speed,
 153                 tvb,
 154                 offset + GNUTELLA_QUERY_SPEED_OFFSET,
 155                 GNUTELLA_SHORT_LENGTH,
 156         TRUE);
 157
 158     if (size > GNUTELLA_SHORT_LENGTH) {
 159         proto_tree_add_item(tree,
 160             hf_gnutella_query_search,
 161             tvb,
 162             offset + GNUTELLA_QUERY_SEARCH_OFFSET,
 163             size - GNUTELLA_SHORT_LENGTH,
 164             FALSE);
 165     }
 166     else {
 167         proto_tree_add_text(tree,
 168             tvb,
 169             offset + GNUTELLA_QUERY_SEARCH_OFFSET,
 170             0,
 171             "Missing data for Query Search.");
 172     }
 173 }
 174
 175 static void dissect_gnutella_queryhit(tvbuff_t *tvb, guint offset, proto_tree *tree, guint size) {
 176
 177         proto_tree *qhi, *hit_tree;
 178         int hit_count, i;
 179         int hit_offset, idx, hit_size;
 180         int name_length, extra_length;
 181         int idx_at_offset, size_at_offset;
 182         int servent_id_at_offset;
 183         int name_at_offset, extra_at_offset;
 184         int cur_char, remaining, used;
 185         unsigned long ip;
 186
 187         if(offset + size > tvb_length(tvb)) {
 188                 proto_tree_add_item(tree,
 189                         hf_gnutella_truncated,
 190                         tvb,
 191                         offset,
 192                         size,
 193                         FALSE);
 194                 return;
 195         }
 196
 197     hit_count = tvb_get_guint8(tvb, offset + GNUTELLA_QUERYHIT_COUNT_OFFSET);
 198
 199         proto_tree_add_uint(tree,
 200                 hf_gnutella_queryhit_count,
 201                 tvb,
 202                 offset + GNUTELLA_QUERYHIT_COUNT_OFFSET,
 203                 GNUTELLA_BYTE_LENGTH,
 204                 hit_count);
 205
 206         proto_tree_add_item(tree,
 207                 hf_gnutella_queryhit_port,
 208                 tvb,
 209                 offset + GNUTELLA_QUERYHIT_PORT_OFFSET,
 210                 GNUTELLA_PORT_LENGTH,
 211                 TRUE);
 212
 213         proto_tree_add_item(tree,
 214                 hf_gnutella_queryhit_ip,
 215                 tvb,
 216                 offset + GNUTELLA_QUERYHIT_IP_OFFSET,
 217                 GNUTELLA_IP_LENGTH,
 218                 FALSE);
 219
 220         proto_tree_add_item(tree,
 221                 hf_gnutella_queryhit_speed,
 222                 tvb,
 223                 offset + GNUTELLA_QUERYHIT_SPEED_OFFSET,
 224                 GNUTELLA_LONG_LENGTH,
 225                 TRUE);
 226
 227         hit_offset = offset + GNUTELLA_QUERYHIT_FIRST_HIT_OFFSET;
 228
 229         for(i = 0; i < hit_count; i++) {
 230                 idx_at_offset  = hit_offset;
 231                 size_at_offset = hit_offset + GNUTELLA_QUERYHIT_HIT_SIZE_OFFSET;
 232
 233                 hit_offset += (GNUTELLA_LONG_LENGTH * 2);
 234
 235                 name_length  = 0;
 236                 extra_length = 0;
 237
 238                 name_at_offset = hit_offset;
 239
 240                 while(hit_offset - offset < size) {
 241                         cur_char = tvb_get_guint8(tvb, hit_offset);
 242                         if(cur_char == '\0')
 243                                 break;
 244
 245                         hit_offset++;
 246                         name_length++;
 247                 }
 248
 249                 hit_offset++;
 250
 251                 extra_at_offset = hit_offset;
 252
 253                 while(hit_offset - offset < size) {
 254                         cur_char = tvb_get_guint8(tvb, hit_offset);
 255                         if(cur_char == '\0')
 256                                 break;
 257
 258                         hit_offset++;
 259                         extra_length++;
 260                 }
 261
 262                 hit_offset++;
 263
 264                 qhi = proto_tree_add_item(tree,
 265                         hf_gnutella_queryhit_hit,
 266                         tvb,
 267                         idx_at_offset,
 268                         (GNUTELLA_LONG_LENGTH * 2) +
 269                         name_length + extra_length +
 270                         GNUTELLA_QUERYHIT_END_OF_STRING_LENGTH,
 271                         FALSE);
 272
 273                 hit_tree = proto_item_add_subtree(qhi, ett_gnutella);
 274
 275                 proto_tree_add_item(hit_tree,
 276                         hf_gnutella_queryhit_hit_index,
 277                         tvb,
 278                         idx_at_offset,
 279                         GNUTELLA_LONG_LENGTH,
 280                         TRUE);
 281
 282                 proto_tree_add_item(hit_tree,
 283                         hf_gnutella_queryhit_hit_size,
 284                         tvb,
 285                         size_at_offset,
 286                         GNUTELLA_LONG_LENGTH,
 287                         TRUE);
 288
 289                 proto_tree_add_item(hit_tree,
 290                         hf_gnutella_queryhit_hit_name,
 291                         tvb,
 292                         name_at_offset,
 293                         name_length,
 294                         FALSE);
 295
 296                 if(extra_length) {
 297                         proto_tree_add_item(hit_tree,
 298                                 hf_gnutella_queryhit_hit_extra,
 299                                 tvb,
 300                                 extra_at_offset,
 301                                 extra_length,
 302                                 FALSE);
 303                 }
 304         }
 305
 306         used = hit_offset - offset;
 307         remaining = size - used;
 308
 309         if(remaining > GNUTELLA_SERVENT_ID_LENGTH) {
 310                 servent_id_at_offset = hit_offset + remaining - GNUTELLA_SERVENT_ID_LENGTH;
 311
 312                 proto_tree_add_item(tree,
 313                         hf_gnutella_queryhit_extra,
 314                         tvb,
 315                         hit_offset,
 316                         servent_id_at_offset - hit_offset,
 317                         FALSE);
 318         }
 319         else {
 320                 servent_id_at_offset = hit_offset;
 321         }
 322
 323         proto_tree_add_item(tree,
 324                 hf_gnutella_queryhit_servent_id,
 325                 tvb,
 326                 servent_id_at_offset,
 327                 GNUTELLA_SERVENT_ID_LENGTH,
 328                 FALSE);
 329
 330 }
 331
 332 static void dissect_gnutella_push(tvbuff_t *tvb, guint offset, proto_tree *tree, guint size) {
 333
 334         if(offset + size > tvb_length(tvb)) {
 335                 proto_tree_add_item(tree,
 336                         hf_gnutella_truncated,
 337                         tvb,
 338                         offset,
 339                         size,
 340                         FALSE);
 341                 return;
 342         }
 343
 344         proto_tree_add_item(tree,
 345                 hf_gnutella_push_servent_id,
 346                 tvb,
 347                 offset + GNUTELLA_PUSH_SERVENT_ID_OFFSET,
 348                 GNUTELLA_SERVENT_ID_LENGTH,
 349                 FALSE);
 350
 351         proto_tree_add_item(tree,
 352                 hf_gnutella_push_index,
 353                 tvb,
 354                 offset + GNUTELLA_PUSH_INDEX_OFFSET,
 355                 GNUTELLA_LONG_LENGTH,
 356                 TRUE);
 357
 358         proto_tree_add_item(tree,
 359                 hf_gnutella_push_ip,
 360                 tvb,
 361                 offset + GNUTELLA_PUSH_IP_OFFSET,
 362                 GNUTELLA_IP_LENGTH,
 363                 FALSE);
 364
 365         proto_tree_add_item(tree,
 366                 hf_gnutella_push_port,
 367                 tvb,
 368                 offset + GNUTELLA_PUSH_PORT_OFFSET,
 369                 GNUTELLA_PORT_LENGTH,
 370                 TRUE);
 371
 372 }
 373
 374 static void dissect_gnutella(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
 375
 376         proto_item *ti, *hi, *pi;
 377         proto_tree *gnutella_tree, *gnutella_header_tree, *gnutella_pong_tree;
 378         proto_tree *gnutella_queryhit_tree, *gnutella_push_tree;
 379         proto_tree *gnutella_query_tree;
 380         int snap_len, payload_descriptor, offset;
 381         unsigned int size;
 382         char *payload_descriptor_text;
 383
 384         if (check_col(pinfo->fd, COL_PROTOCOL))
 385                 col_set_str(pinfo->fd, COL_PROTOCOL, "Gnutella");
 386
 387         if (check_col(pinfo->fd, COL_INFO))
 388                 col_set_str(pinfo->fd, COL_INFO, "Gnutella");
 389
 390         snap_len = tvb_length(tvb);
 391
 392         if(snap_len < GNUTELLA_HEADER_LENGTH) {
 393                 if (check_col(pinfo->fd, COL_INFO))
 394                         col_append_fstr(pinfo->fd, COL_INFO,
 395                                         ", %i bytes [INCOMPLETE]", snap_len);
 396                 return;
 397         }
 398         else {
 399                 if (check_col(pinfo->fd, COL_INFO))
 400                         col_append_fstr(pinfo->fd, COL_INFO,
 401                                         ", %i bytes", snap_len);
 402         }
 403
 404         if (tree) {
 405                 ti = proto_tree_add_item(tree,
 406                         proto_gnutella,
 407                         tvb,
 408                         0,
 409                         tvb_length(tvb),
 410                         FALSE);
 411                 gnutella_tree = proto_item_add_subtree(ti, ett_gnutella);
 412
 413                 offset = 0;
 414
 415                 size = tvb_get_letohl(
 416                         tvb,
 417                         offset + GNUTELLA_HEADER_SIZE_OFFSET);
 418                 if(size > GNUTELLA_MAX_SNAP_SIZE) {
 419                         proto_tree_add_item(gnutella_tree,
 420                                 hf_gnutella_stream,
 421                                 tvb,
 422                                 offset,
 423                                 snap_len,
 424                                 FALSE);
 425                         return;
 426                 }
 427
 428                 while(snap_len - offset >= GNUTELLA_HEADER_LENGTH) {
 429                         payload_descriptor = tvb_get_guint8(
 430                                 tvb,
 431                                 offset +
 432                                 GNUTELLA_HEADER_PAYLOAD_OFFSET);
 433                         size = tvb_get_letohl(
 434                                 tvb,
 435                                 offset + GNUTELLA_HEADER_SIZE_OFFSET);
 436
 437                         switch(payload_descriptor) {
 438                                 case GNUTELLA_PING:
 439                                         payload_descriptor_text = GNUTELLA_PING_NAME;
 440                                         break;
 441                                 case GNUTELLA_PONG:
 442                                         payload_descriptor_text = GNUTELLA_PONG_NAME;
 443                                         break;
 444                                 case GNUTELLA_PUSH:
 445                                         payload_descriptor_text = GNUTELLA_PUSH_NAME;
 446                                         break;
 447                                 case GNUTELLA_QUERY:
 448                                         payload_descriptor_text = GNUTELLA_QUERY_NAME;
 449                                         break;
 450                                 case GNUTELLA_QUERYHIT:
 451                                         payload_descriptor_text = GNUTELLA_QUERYHIT_NAME;
 452                                         break;
 453                                 default:
 454                                         payload_descriptor_text = GNUTELLA_UNKNOWN_NAME;
 455                                         break;
 456                         }
 457
 458                         hi = proto_tree_add_item(gnutella_tree,
 459                                 hf_gnutella_header,
 460                                 tvb,
 461                                 offset,
 462                                 GNUTELLA_HEADER_LENGTH,
 463                                 FALSE);
 464                         gnutella_header_tree = proto_item_add_subtree(hi, ett_gnutella);
 465
 466                         proto_tree_add_item(gnutella_header_tree,
 467                                 hf_gnutella_header_id,
 468                                 tvb,
 469                                 offset + GNUTELLA_HEADER_ID_OFFSET,
 470                                 GNUTELLA_SERVENT_ID_LENGTH,
 471                                 FALSE);
 472
 473                         proto_tree_add_uint_format(gnutella_header_tree,
 474                                 hf_gnutella_header_payload,
 475                                 tvb,
 476                                 offset + GNUTELLA_HEADER_PAYLOAD_OFFSET,
 477                                 GNUTELLA_BYTE_LENGTH,
 478                                 payload_descriptor,
 479                                 "Payload: %i (%s)",
 480                                 payload_descriptor,
 481                                 payload_descriptor_text);
 482
 483                         proto_tree_add_item(gnutella_header_tree,
 484                                 hf_gnutella_header_ttl,
 485                                 tvb,
 486                                 offset + GNUTELLA_HEADER_TTL_OFFSET,
 487                                 GNUTELLA_BYTE_LENGTH,
 488                                 FALSE);
 489
 490                         proto_tree_add_item(gnutella_header_tree,
 491                                 hf_gnutella_header_hops,
 492                                 tvb,
 493                                 offset + GNUTELLA_HEADER_HOPS_OFFSET,
 494                                 GNUTELLA_BYTE_LENGTH,
 495                                 FALSE);
 496
 497                         proto_tree_add_uint(gnutella_header_tree,
 498                                 hf_gnutella_header_size,
 499                                 tvb,
 500                                 offset + GNUTELLA_HEADER_SIZE_OFFSET,
 501                                 GNUTELLA_LONG_LENGTH,
 502                                 size);
 503
 504             if (size > 0) {
 505
 506                 switch(payload_descriptor) {
 507                     case GNUTELLA_PONG:
 508                         pi = proto_tree_add_item(
 509                             gnutella_header_tree,
 510                             hf_gnutella_pong_payload,
 511                             tvb,
 512                             offset + GNUTELLA_HEADER_LENGTH,
 513                             size,
 514                             FALSE);
 515                         gnutella_pong_tree = proto_item_add_subtree(
 516                             pi,
 517                             ett_gnutella);
 518                         dissect_gnutella_pong(
 519                             tvb,
 520                             offset + GNUTELLA_HEADER_LENGTH,
 521                             gnutella_pong_tree,
 522                             size);
 523                         break;
 524                     case GNUTELLA_PUSH:
 525                         pi = proto_tree_add_item(
 526                             gnutella_header_tree,
 527                             hf_gnutella_push_payload,
 528                             tvb,
 529                             offset + GNUTELLA_HEADER_LENGTH,
 530                             size,
 531                             FALSE);
 532                         gnutella_push_tree = proto_item_add_subtree(
 533                             pi,
 534                             ett_gnutella);
 535                         dissect_gnutella_push(
 536                             tvb,
 537                             offset + GNUTELLA_HEADER_LENGTH,
 538                             gnutella_push_tree,
 539                             size);
 540                         break;
 541                     case GNUTELLA_QUERY:
 542                         pi = proto_tree_add_item(
 543                             gnutella_header_tree,
 544                             hf_gnutella_query_payload,
 545                             tvb,
 546                             offset + GNUTELLA_HEADER_LENGTH,
 547                             size,
 548                             FALSE);
 549                         gnutella_query_tree = proto_item_add_subtree(
 550                             pi,
 551                             ett_gnutella);
 552                         dissect_gnutella_query(
 553                             tvb,
 554                             offset + GNUTELLA_HEADER_LENGTH,
 555                             gnutella_query_tree,
 556                             size);
 557                         break;
 558                     case GNUTELLA_QUERYHIT:
 559                         pi = proto_tree_add_item(
 560                             gnutella_header_tree,
 561                             hf_gnutella_queryhit_payload,
 562                             tvb,
 563                             offset + GNUTELLA_HEADER_LENGTH,
 564                             size,
 565                             FALSE);
 566                         gnutella_queryhit_tree = proto_item_add_subtree(
 567                             pi,
 568                             ett_gnutella);
 569                         dissect_gnutella_queryhit(
 570                             tvb,
 571                             offset + GNUTELLA_HEADER_LENGTH,
 572                             gnutella_queryhit_tree,
 573                             size);
 574                         break;
 575                 }
 576             }
 577
 578                         offset = offset + GNUTELLA_HEADER_LENGTH + size;
 579                 }
 580         }
 581
 582 }
 583
 584
 585 void proto_register_gnutella(void) {
 586
 587         static hf_register_info hf[] = {
 588                 { &hf_gnutella_header,
 589                         { "Descriptor Header", "gnutella.header",
 590                         FT_NONE, BASE_NONE, NULL, 0,
 591                         "Gnutella Descriptor Header", HFILL }
 592                 },
 593                 { &hf_gnutella_pong_payload,
 594                         { "Pong", "gnutella.pong.payload",
 595                         FT_NONE, BASE_NONE, NULL, 0,
 596                         "Gnutella Pong Payload", HFILL }
 597                 },
 598                 { &hf_gnutella_push_payload,
 599                         { "Push", "gnutella.push.payload",
 600                         FT_NONE, BASE_NONE, NULL, 0,
 601                         "Gnutella Push Payload", HFILL }
 602                 },
 603                 { &hf_gnutella_query_payload,
 604                         { "Query", "gnutella.query.payload",
 605                         FT_NONE, BASE_NONE, NULL, 0,
 606                         "Gnutella Query Payload", HFILL }
 607                 },
 608                 { &hf_gnutella_queryhit_payload,
 609                         { "QueryHit", "gnutella.queryhit.payload",
 610                         FT_NONE, BASE_NONE, NULL, 0,
 611                         "Gnutella QueryHit Payload", HFILL }
 612                 },
 613                 { &hf_gnutella_truncated,
 614                         { "Truncated Frame", "gnutella.truncated",
 615                         FT_NONE, BASE_NONE, NULL, 0,
 616                         "The Gnutella Frame Was Truncated", HFILL }
 617                 },
 618                 { &hf_gnutella_stream,
 619                         { "Gnutella Upload / Download Stream", "gnutella.stream",
 620                         FT_NONE, BASE_NONE, NULL, 0,
 621                         "Gnutella Upload / Download Stream", HFILL }
 622                 },
 623                 { &hf_gnutella_header_id,
 624                         { "ID", "gnutella.header.id",
 625                         FT_BYTES, BASE_HEX, NULL, 0,
 626                         "Gnutella Descriptor ID", HFILL }
 627                 },
 628                 { &hf_gnutella_header_payload,
 629                         { "Payload", "gnutella.header.payload",
 630                         FT_UINT8, BASE_DEC, NULL, 0,
 631                         "Gnutella Descriptor Payload", HFILL }
 632                 },
 633                 { &hf_gnutella_header_ttl,
 634                         { "TTL", "gnutella.header.ttl",
 635                         FT_UINT8, BASE_DEC, NULL, 0,
 636                         "Gnutella Descriptor Time To Live", HFILL }
 637                 },
 638                 { &hf_gnutella_header_hops,
 639                         { "Hops", "gnutella.header.hops",
 640                         FT_UINT8, BASE_DEC, NULL, 0,
 641                         "Gnutella Descriptor Hop Count", HFILL }
 642                 },
 643                 { &hf_gnutella_header_size,
 644                         { "Length", "gnutella.header.size",
 645                         FT_UINT8, BASE_DEC, NULL, 0,
 646                         "Gnutella Descriptor Payload Length", HFILL }
 647                 },
 648                 { &hf_gnutella_pong_port,
 649                         { "Port", "gnutella.pong.port",
 650                         FT_UINT16, BASE_DEC, NULL, 0,
 651                         "Gnutella Pong TCP Port", HFILL }
 652                 },
 653                 { &hf_gnutella_pong_ip,
 654                         { "IP", "gnutella.pong.ip",
 655                         FT_IPv4, BASE_DEC, NULL, 0,
 656                         "Gnutella Pong IP Address", HFILL }
 657                 },
 658                 { &hf_gnutella_pong_files,
 659                         { "Files Shared", "gnutella.pong.files",
 660                         FT_UINT32, BASE_DEC, NULL, 0,
 661                         "Gnutella Pong Files Shared", HFILL }
 662                 },
 663                 { &hf_gnutella_pong_kbytes,
 664                         { "KBytes Shared", "gnutella.pong.kbytes",
 665                         FT_UINT32, BASE_DEC, NULL, 0,
 666                         "Gnutella Pong KBytes Shared", HFILL }
 667                 },
 668                 { &hf_gnutella_query_min_speed,
 669                         { "Min Speed", "gnutella.query.min_speed",
 670                         FT_UINT32, BASE_DEC, NULL, 0,
 671                         "Gnutella Query Minimum Speed", HFILL }
 672                 },
 673                 { &hf_gnutella_query_search,
 674                         { "Search", "gnutella.query.search",
 675                         FT_STRINGZ, BASE_NONE, NULL, 0,
 676                         "Gnutella Query Search", HFILL }
 677                 },
 678                 { &hf_gnutella_queryhit_hit,
 679                         { "Hit", "gnutella.queryhit.hit",
 680                         FT_NONE, BASE_NONE, NULL, 0,
 681                         "Gnutella QueryHit", HFILL }
 682                 },
 683                 { &hf_gnutella_queryhit_hit_index,
 684                         { "Index", "gnutella.queryhit.hit.index",
 685                         FT_UINT32, BASE_DEC, NULL, 0,
 686                         "Gnutella QueryHit Index", HFILL }
 687                 },
 688                 { &hf_gnutella_queryhit_hit_size,
 689                         { "Size", "gnutella.queryhit.hit.size",
 690                         FT_UINT32, BASE_DEC, NULL, 0,
 691                         "Gnutella QueryHit Size", HFILL }
 692                 },
 693                 { &hf_gnutella_queryhit_hit_name,
 694                         { "Name", "gnutella.queryhit.hit.name",
 695                         FT_STRING, BASE_NONE, NULL, 0,
 696                         "Gnutella Query Name", HFILL }
 697                 },
 698                 { &hf_gnutella_queryhit_hit_extra,
 699                         { "Extra", "gnutella.queryhit.hit.extra",
 700                         FT_BYTES, BASE_HEX, NULL, 0,
 701                         "Gnutella Query Extra", HFILL }
 702                 },
 703                 { &hf_gnutella_queryhit_count,
 704                         { "Count", "gnutella.queryhit.count",
 705                         FT_UINT8, BASE_DEC, NULL, 0,
 706                         "Gnutella QueryHit Count", HFILL }
 707                 },
 708                 { &hf_gnutella_queryhit_port,
 709                         { "Port", "gnutella.queryhit.port",
 710                         FT_UINT16, BASE_DEC, NULL, 0,
 711                         "Gnutella QueryHit Port", HFILL }
 712                 },
 713                 { &hf_gnutella_queryhit_ip,
 714                         { "IP", "gnutella.queryhit.ip",
 715                         FT_IPv4, BASE_DEC, NULL, 0,
 716                         "Gnutella QueryHit IP Address", HFILL }
 717                 },
 718                 { &hf_gnutella_queryhit_speed,
 719                         { "Speed", "gnutella.queryhit.speed",
 720                         FT_UINT32, BASE_DEC, NULL, 0,
 721                         "Gnutella QueryHit Speed", HFILL }
 722                 },
 723                 { &hf_gnutella_queryhit_extra,
 724                         { "Extra", "gnutella.queryhit.extra",
 725                         FT_BYTES, BASE_HEX, NULL, 0,
 726                         "Gnutella QueryHit Extra", HFILL }
 727                 },
 728                 { &hf_gnutella_queryhit_servent_id,
 729                         { "Servent ID", "gnutella.queryhit.servent_id",
 730                         FT_BYTES, BASE_HEX, NULL, 0,
 731                         "Gnutella QueryHit Servent ID", HFILL }
 732                 },
 733                 { &hf_gnutella_push_servent_id,
 734                         { "Servent ID", "gnutella.push.servent_id",
 735                         FT_BYTES, BASE_HEX, NULL, 0,
 736                         "Gnutella Push Servent ID", HFILL }
 737                 },
 738                 { &hf_gnutella_push_ip,
 739                         { "IP", "gnutella.push.ip",
 740                         FT_IPv4, BASE_DEC, NULL, 0,
 741                         "Gnutella Push IP Address", HFILL }
 742                 },
 743                 { &hf_gnutella_push_index,
 744                         { "Index", "gnutella.push.index",
 745                         FT_UINT32, BASE_DEC, NULL, 0,
 746                         "Gnutella Push Index", HFILL }
 747                 },
 748                 { &hf_gnutella_push_port,
 749                         { "Port", "gnutella.push.port",
 750                         FT_UINT16, BASE_DEC, NULL, 0,
 751                         "Gnutella Push Port", HFILL }
 752                 },
 753         };
 754
 755         static gint *ett[] = {
 756                 &ett_gnutella,
 757         };
 758
 759         proto_gnutella = proto_register_protocol("Gnutella Protocol",
 760                                                 "GNUTELLA",
 761                                                 "gnutella");
 762
 763         proto_register_field_array(proto_gnutella, hf, array_length(hf));
 764
 765         proto_register_subtree_array(ett, array_length(ett));
 766 }
 767
 768 void proto_reg_handoff_gnutella(void) {
 769         dissector_add("tcp.port",
 770                         GNUTELLA_TCP_PORT,
 771                         dissect_gnutella,
 772                         proto_gnutella);
 773 }