epan/dissectors/packet-quake.c

   1 /* packet-quake.c
   2  * Routines for Quake packet dissection
   3  *
   4  * Uwe Girlich <uwe@planetquake.com>
   5  *      http://www.idsoftware.com/q1source/q1source.zip
   6  *
   7  * $Id$
   8  *
   9  * Wireshark - Network traffic analyzer
  10  * By Gerald Combs <gerald@wireshark.org>
  11  * Copyright 1998 Gerald Combs
  12  *
  13  * Copied from packet-tftp.c
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  28  */
  29
  30 #include "config.h"
  31
  32 #include <glib.h>
  33 #include <epan/packet.h>
  34 #include <epan/conversation.h>
  35 #include <epan/prefs.h>
  36
  37 static int proto_quake = -1;
  38 static int hf_quake_header_flags = -1;
  39 static int hf_quake_header_flags_data = -1;
  40 static int hf_quake_header_flags_ack = -1;
  41 static int hf_quake_header_flags_no_ack = -1;
  42 static int hf_quake_header_flags_endmsg = -1;
  43 static int hf_quake_header_flags_unreliable = -1;
  44 static int hf_quake_header_flags_control = -1;
  45 static int hf_quake_header_length = -1;
  46 static int hf_quake_header_sequence = -1;
  47 static int hf_quake_control_command = -1;
  48
  49 static int hf_quake_CCREQ_CONNECT_game = -1;
  50 static int hf_quake_CCREQ_CONNECT_version = -1;
  51 static int hf_quake_CCREQ_SERVER_INFO_game = -1;
  52 static int hf_quake_CCREQ_SERVER_INFO_version = -1;
  53 static int hf_quake_CCREQ_PLAYER_INFO_player = -1;
  54 static int hf_quake_CCREQ_RULE_INFO_lastrule = -1;
  55
  56 static int hf_quake_CCREP_ACCEPT_port = -1;
  57 static int hf_quake_CCREP_REJECT_reason = -1;
  58 static int hf_quake_CCREP_SERVER_INFO_address = -1;
  59 static int hf_quake_CCREP_SERVER_INFO_server = -1;
  60 static int hf_quake_CCREP_SERVER_INFO_map = -1;
  61 static int hf_quake_CCREP_SERVER_INFO_num_player = -1;
  62 static int hf_quake_CCREP_SERVER_INFO_max_player = -1;
  63 static int hf_quake_CCREP_PLAYER_INFO_name = -1;
  64 static int hf_quake_CCREP_PLAYER_INFO_colors = -1;
  65 static int hf_quake_CCREP_PLAYER_INFO_colors_shirt = -1;
  66 static int hf_quake_CCREP_PLAYER_INFO_colors_pants = -1;
  67 static int hf_quake_CCREP_PLAYER_INFO_frags = -1;
  68 static int hf_quake_CCREP_PLAYER_INFO_connect_time = -1;
  69 static int hf_quake_CCREP_PLAYER_INFO_address = -1;
  70 static int hf_quake_CCREP_RULE_INFO_rule = -1;
  71 static int hf_quake_CCREP_RULE_INFO_value = -1;
  72
  73
  74 static gint ett_quake = -1;
  75 static gint ett_quake_control = -1;
  76 static gint ett_quake_control_colors = -1;
  77 static gint ett_quake_flags = -1;
  78
  79 static dissector_handle_t quake_handle;
  80 static dissector_handle_t data_handle;
  81
  82 /* I took these names directly out of the Q1 source. */
  83 #define NET_HEADERSIZE 8
  84 #define DEFAULTnet_hostport 26000
  85 static guint gbl_quakeServerPort=DEFAULTnet_hostport;
  86
  87 #define NETFLAG_DATA            0x0001
  88 #define NETFLAG_ACK             0x0002
  89 #define NETFLAG_NAK             0x0004
  90 #define NETFLAG_EOM             0x0008
  91 #define NETFLAG_UNRELIABLE      0x0010
  92 #define NETFLAG_CTL             0x8000
  93
  94
  95 #define CCREQ_CONNECT           0x01
  96 #define CCREQ_SERVER_INFO       0x02
  97 #define CCREQ_PLAYER_INFO       0x03
  98 #define CCREQ_RULE_INFO         0x04
  99
 100 #define CCREP_ACCEPT            0x81
 101 #define CCREP_REJECT            0x82
 102 #define CCREP_SERVER_INFO       0x83
 103 #define CCREP_PLAYER_INFO       0x84
 104 #define CCREP_RULE_INFO         0x85
 105
 106 static const value_string names_control_command[] = {
 107         {       CCREQ_CONNECT, "connect" },
 108         {       CCREQ_SERVER_INFO, "server_info" },
 109         {       CCREQ_PLAYER_INFO, "player_info" },
 110         {       CCREQ_RULE_INFO, "rule_info" },
 111         {       CCREP_ACCEPT, "accept" },
 112         {       CCREP_REJECT, "reject" },
 113         {       CCREP_SERVER_INFO, "server_info" },
 114         {       CCREP_PLAYER_INFO, "player_info" },
 115         {       CCREP_RULE_INFO, "rule_info" },
 116         { 0, NULL }
 117 };
 118
 119 #define CCREQ 0x00
 120 #define CCREP 0x80
 121
 122 #define QUAKE_MAXSTRING 0x800
 123
 124 static const value_string names_control_direction[] = {
 125         { CCREQ, "Request" },
 126         { CCREP, "Reply" },
 127         { 0, NULL }
 128 };
 129
 130
 131 static const value_string names_colors[] = {
 132         {  0, "White" },
 133         {  1, "Brown" },
 134         {  2, "Lavender" },
 135         {  3, "Khaki" },
 136         {  4, "Red" },
 137         {  5, "Lt Brown" },
 138         {  6, "Peach" },
 139         {  7, "Lt Peach" },
 140         {  8, "Purple" },
 141         {  9, "Dk Purple" },
 142         { 10, "Tan" },
 143         { 11, "Green" },
 144         { 12, "Yellow" },
 145         { 13, "Blue" },
 146         { 14, "Blue" },
 147         { 15, "Blue" },
 148         {  0, NULL }
 149 };
 150
 151
 152 static void dissect_quake(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
 153
 154
 155
 156 static void
 157 dissect_quake_CCREQ_CONNECT
 158 (tvbuff_t *tvb, proto_tree *tree)
 159 {
 160         gint offset;
 161         proto_item *ti;
 162
 163         offset = 0;
 164
 165         if (tree) {
 166                 ti = proto_tree_add_item(tree, hf_quake_CCREQ_CONNECT_game,
 167                         tvb, offset, -1, ENC_ASCII|ENC_NA);
 168                 offset += proto_item_get_len(ti);
 169
 170                 proto_tree_add_item(tree, hf_quake_CCREQ_CONNECT_version,
 171                         tvb, offset, 1, ENC_LITTLE_ENDIAN);
 172         }
 173 }
 174
 175
 176 static void
 177 dissect_quake_CCREQ_SERVER_INFO
 178 (tvbuff_t *tvb, proto_tree *tree)
 179 {
 180         gint offset;
 181         proto_item *ti;
 182
 183         offset = 0;
 184
 185         if (tree) {
 186                 ti = proto_tree_add_item(tree, hf_quake_CCREQ_SERVER_INFO_game,
 187                         tvb, offset, -1, ENC_ASCII|ENC_NA);
 188                 offset += proto_item_get_len(ti);
 189                 proto_tree_add_item(tree, hf_quake_CCREQ_SERVER_INFO_version,
 190                         tvb, offset, 1, ENC_LITTLE_ENDIAN);
 191         }
 192 }
 193
 194
 195 static void
 196 dissect_quake_CCREQ_PLAYER_INFO
 197 (tvbuff_t *tvb, proto_tree *tree)
 198 {
 199         if (tree) {
 200                  proto_tree_add_item(tree, hf_quake_CCREQ_PLAYER_INFO_player,
 201                         tvb, 0, 1, ENC_LITTLE_ENDIAN);
 202         }
 203 }
 204
 205
 206 static void
 207 dissect_quake_CCREQ_RULE_INFO
 208 (tvbuff_t *tvb, proto_tree *tree)
 209 {
 210         if (tree) {
 211                 proto_tree_add_item(tree, hf_quake_CCREQ_RULE_INFO_lastrule,
 212                         tvb, 0, -1, ENC_ASCII|ENC_NA);
 213         }
 214 }
 215
 216
 217 static void
 218 dissect_quake_CCREP_ACCEPT
 219 (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 220 {
 221         guint32 port;
 222         conversation_t *c;
 223
 224         port = tvb_get_letohl(tvb, 0);
 225         c = find_or_create_conversation(pinfo);
 226         conversation_set_dissector(c, quake_handle);
 227
 228         if (tree) {
 229                 proto_tree_add_uint(tree, hf_quake_CCREP_ACCEPT_port,
 230                         tvb, 0, 4, port);
 231         }
 232 }
 233
 234
 235 static void
 236 dissect_quake_CCREP_REJECT
 237 (tvbuff_t *tvb, proto_tree *tree)
 238 {
 239         if (tree) {
 240                 proto_tree_add_item(tree, hf_quake_CCREP_REJECT_reason,
 241                         tvb, 0, -1, ENC_ASCII|ENC_NA);
 242         }
 243 }
 244
 245
 246 static void
 247 dissect_quake_CCREP_SERVER_INFO
 248 (tvbuff_t *tvb, proto_tree *tree)
 249 {
 250         gint offset;
 251         proto_item *ti;
 252
 253         offset = 0;
 254
 255         if (tree) {
 256                 ti = proto_tree_add_item(tree,
 257                         hf_quake_CCREP_SERVER_INFO_address, tvb, offset, -1,
 258                         ENC_ASCII|ENC_NA);
 259                 offset += proto_item_get_len(ti);
 260
 261                 ti = proto_tree_add_item(tree,
 262                         hf_quake_CCREP_SERVER_INFO_server, tvb, offset, -1,
 263                         ENC_ASCII|ENC_NA);
 264                 offset += proto_item_get_len(ti);
 265
 266                 ti = proto_tree_add_item(tree, hf_quake_CCREP_SERVER_INFO_map,
 267                         tvb, offset, -1, ENC_ASCII|ENC_NA);
 268                 offset += proto_item_get_len(ti);
 269
 270                 proto_tree_add_item(tree, hf_quake_CCREP_SERVER_INFO_num_player,
 271                         tvb, offset, 1, ENC_LITTLE_ENDIAN);
 272                 offset += 1;
 273                 proto_tree_add_item(tree, hf_quake_CCREP_SERVER_INFO_max_player,
 274                         tvb, offset, 1, ENC_LITTLE_ENDIAN);
 275                 offset += 1;
 276                 proto_tree_add_item(tree, hf_quake_CCREQ_SERVER_INFO_version,
 277                         tvb, offset, 1, ENC_LITTLE_ENDIAN);
 278         }
 279 }
 280
 281
 282 static void
 283 dissect_quake_CCREP_PLAYER_INFO
 284 (tvbuff_t *tvb, proto_tree *tree)
 285 {
 286         gint offset;
 287         proto_item *ti;
 288         guint32 colors;
 289         guint32 color_shirt;
 290         guint32 color_pants;
 291         proto_item *colors_item;
 292         proto_tree *colors_tree;
 293
 294         offset = 0;
 295
 296         if (tree) {
 297                 proto_tree_add_item(tree, hf_quake_CCREQ_PLAYER_INFO_player,
 298                         tvb, offset, 1, ENC_LITTLE_ENDIAN);
 299                 offset += 1;
 300
 301                 ti = proto_tree_add_item(tree, hf_quake_CCREP_PLAYER_INFO_name,
 302                         tvb, offset, -1, ENC_ASCII|ENC_NA);
 303                 offset += proto_item_get_len(ti);
 304
 305                 colors       = tvb_get_letohl(tvb, offset + 0);
 306                 color_shirt = (colors >> 4) & 0x0f;
 307                 color_pants = (colors     ) & 0x0f;
 308
 309                 colors_item = proto_tree_add_uint(tree,
 310                         hf_quake_CCREP_PLAYER_INFO_colors,
 311                         tvb, offset, 4, colors);
 312                 colors_tree = proto_item_add_subtree(colors_item,
 313                                 ett_quake_control_colors);
 314                 proto_tree_add_uint(colors_tree,
 315                         hf_quake_CCREP_PLAYER_INFO_colors_shirt,
 316                         tvb, offset, 1, color_shirt);
 317                 proto_tree_add_uint(colors_tree,
 318                         hf_quake_CCREP_PLAYER_INFO_colors_pants,
 319                         tvb, offset, 1, color_pants);
 320                 offset += 4;
 321                 proto_tree_add_item(tree, hf_quake_CCREP_PLAYER_INFO_frags,
 322                         tvb, offset, 4, ENC_LITTLE_ENDIAN);
 323                 offset += 4;
 324                 proto_tree_add_item(tree, hf_quake_CCREP_PLAYER_INFO_connect_time,
 325                         tvb, offset, 4, ENC_LITTLE_ENDIAN);
 326                 offset += 4;
 327
 328                 proto_tree_add_item(tree, hf_quake_CCREP_PLAYER_INFO_address,
 329                         tvb, offset, -1, ENC_ASCII|ENC_NA);
 330         }
 331 }
 332
 333
 334 static void
 335 dissect_quake_CCREP_RULE_INFO
 336 (tvbuff_t *tvb, proto_tree *tree)
 337 {
 338         gint offset;
 339         proto_item *ti;
 340
 341         if (tvb_reported_length(tvb) == 0) return;
 342
 343         offset = 0;
 344
 345         if (tree) {
 346                 ti = proto_tree_add_item(tree, hf_quake_CCREP_RULE_INFO_rule,
 347                         tvb, offset, -1, ENC_ASCII|ENC_NA);
 348                 offset += proto_item_get_len(ti);
 349
 350                 proto_tree_add_item(tree, hf_quake_CCREP_RULE_INFO_value,
 351                         tvb, offset, -1, ENC_ASCII|ENC_NA);
 352         }
 353 }
 354
 355
 356 static void
 357 dissect_quake_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 358 {
 359         guint8          command;
 360         int             direction;
 361         proto_tree      *control_tree = NULL;
 362         guint           rest_length;
 363         tvbuff_t        *next_tvb;
 364
 365         command = tvb_get_guint8(tvb, 0);
 366         direction = (command & 0x80) ? CCREP : CCREQ;
 367
 368         col_add_fstr(pinfo->cinfo, COL_INFO, "%s %s",
 369                         val_to_str(command,names_control_command, "%u"),
 370                         val_to_str(direction,names_control_direction,"%u"));
 371
 372         if (tree) {
 373                 proto_item *control_item;
 374                 control_item = proto_tree_add_text(tree, tvb,
 375                                 0, -1, "Control %s: %s",
 376                                 val_to_str(direction, names_control_direction, "%u"),
 377                                 val_to_str(command, names_control_command, "%u"));
 378                 control_tree = proto_item_add_subtree(control_item, ett_quake_control);
 379                 proto_tree_add_uint(control_tree, hf_quake_control_command,
 380                                         tvb, 0, 1, command);
 381         }
 382
 383         rest_length = tvb_reported_length(tvb) - 1;
 384         next_tvb = tvb_new_subset(tvb, 1, rest_length , rest_length);
 385         switch (command) {
 386                 case CCREQ_CONNECT:
 387                         dissect_quake_CCREQ_CONNECT
 388                                 (next_tvb, control_tree);
 389                 break;
 390                 case CCREQ_SERVER_INFO:
 391                         dissect_quake_CCREQ_SERVER_INFO
 392                                 (next_tvb, control_tree);
 393                 break;
 394                 case CCREQ_PLAYER_INFO:
 395                         dissect_quake_CCREQ_PLAYER_INFO
 396                                 (next_tvb, control_tree);
 397                 break;
 398                 case CCREQ_RULE_INFO:
 399                         dissect_quake_CCREQ_RULE_INFO
 400                                 (next_tvb, control_tree);
 401                 break;
 402                 case CCREP_ACCEPT:
 403                         dissect_quake_CCREP_ACCEPT
 404                                 (next_tvb, pinfo, control_tree);
 405                 break;
 406                 case CCREP_REJECT:
 407                         dissect_quake_CCREP_REJECT
 408                                 (next_tvb, control_tree);
 409                 break;
 410                 case CCREP_SERVER_INFO:
 411                         dissect_quake_CCREP_SERVER_INFO
 412                                 (next_tvb, control_tree);
 413                 break;
 414                 case CCREP_PLAYER_INFO:
 415                         dissect_quake_CCREP_PLAYER_INFO
 416                                 (next_tvb, control_tree);
 417                 break;
 418                 case CCREP_RULE_INFO:
 419                         dissect_quake_CCREP_RULE_INFO
 420                                 (next_tvb, control_tree);
 421                 break;
 422                 default:
 423                         call_dissector(data_handle,next_tvb, pinfo, control_tree);
 424                 break;
 425         }
 426 }
 427
 428
 429 static void
 430 dissect_quake(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 431 {
 432         proto_tree      *quake_tree = NULL;
 433         guint16         flags;
 434         guint32         sequence = 0;
 435         guint           rest_length;
 436         tvbuff_t        *next_tvb;
 437
 438         col_set_str(pinfo->cinfo, COL_PROTOCOL, "QUAKE");
 439         col_clear(pinfo->cinfo, COL_INFO);
 440
 441         flags = tvb_get_ntohs(tvb, 2);
 442
 443         if (tree) {
 444                 proto_item *quake_item;
 445                 quake_item = proto_tree_add_item(tree, proto_quake,
 446                                 tvb, 0, -1, ENC_NA);
 447                 quake_tree = proto_item_add_subtree(quake_item, ett_quake);
 448         }
 449
 450         if (quake_tree) {
 451                 proto_item* flags_item;
 452                 proto_tree* flags_tree;
 453
 454                 flags_item = proto_tree_add_item(quake_tree, hf_quake_header_flags,
 455                         tvb, 2, 2, ENC_BIG_ENDIAN);
 456                 flags_tree = proto_item_add_subtree(flags_item, ett_quake_flags);
 457                 proto_tree_add_item(flags_tree, hf_quake_header_flags_data, tvb, 2, 2, ENC_BIG_ENDIAN);
 458                 proto_tree_add_item(flags_tree, hf_quake_header_flags_ack, tvb, 2, 2, ENC_BIG_ENDIAN);
 459                 proto_tree_add_item(flags_tree, hf_quake_header_flags_no_ack, tvb, 2, 2, ENC_BIG_ENDIAN);
 460                 proto_tree_add_item(flags_tree, hf_quake_header_flags_endmsg, tvb, 2, 2, ENC_BIG_ENDIAN);
 461                 proto_tree_add_item(flags_tree, hf_quake_header_flags_unreliable, tvb, 2, 2, ENC_BIG_ENDIAN);
 462                 proto_tree_add_item(flags_tree, hf_quake_header_flags_control, tvb, 2, 2, ENC_BIG_ENDIAN);
 463
 464                 proto_tree_add_item(quake_tree, hf_quake_header_length,
 465                         tvb, 0, 2, ENC_BIG_ENDIAN);
 466         }
 467
 468         if (flags == NETFLAG_CTL) {
 469                 rest_length = tvb_reported_length(tvb) - 4;
 470                 next_tvb = tvb_new_subset(tvb, 4, rest_length , rest_length);
 471                 dissect_quake_control(next_tvb, pinfo, quake_tree);
 472                 return;
 473         }
 474
 475         sequence = tvb_get_ntohl(tvb, 4);
 476         col_add_fstr(pinfo->cinfo, COL_INFO, "seq 0x%x", sequence);
 477         proto_tree_add_uint(quake_tree, hf_quake_header_sequence,
 478                         tvb, 4, 4, sequence);
 479
 480         rest_length = tvb_reported_length(tvb) - 8;
 481         next_tvb = tvb_new_subset(tvb, 8, rest_length , rest_length);
 482         call_dissector(data_handle,next_tvb, pinfo, quake_tree);
 483 }
 484
 485
 486 void proto_reg_handoff_quake(void);
 487
 488 void
 489 proto_register_quake(void)
 490 {
 491   static hf_register_info hf[] = {
 492     { &hf_quake_header_flags,
 493       { "Flags", "quake.header.flags",
 494         FT_UINT16, BASE_HEX, NULL, 0x0,
 495         NULL, HFILL }},
 496     { &hf_quake_header_flags_data,
 497       { "Data", "quake.header.flags.data",
 498         FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_DATA,
 499         NULL, HFILL }},
 500     { &hf_quake_header_flags_ack,
 501       { "Acknowledgment", "quake.header.flags.ack",
 502         FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_ACK,
 503         NULL, HFILL }},
 504     { &hf_quake_header_flags_no_ack,
 505       { "No Acknowledgment", "quake.header.flags.no_ack",
 506         FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_NAK,
 507         NULL, HFILL }},
 508     { &hf_quake_header_flags_endmsg,
 509       { "End Of Message", "quake.header.flags.endmsg",
 510         FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_EOM,
 511         NULL, HFILL }},
 512     { &hf_quake_header_flags_unreliable,
 513       { "Unreliable", "quake.header.flags.unreliable",
 514         FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_UNRELIABLE,
 515         NULL, HFILL }},
 516     { &hf_quake_header_flags_control,
 517       { "Control", "quake.header.flags.control",
 518         FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_CTL,
 519         NULL, HFILL }},
 520     { &hf_quake_header_length,
 521       { "Length", "quake.header.length",
 522         FT_UINT16, BASE_DEC, NULL, 0x0,
 523         "full data length", HFILL }},
 524     { &hf_quake_header_sequence,
 525       { "Sequence", "quake.header.sequence",
 526         FT_UINT32, BASE_HEX, NULL, 0x0,
 527         "Sequence Number", HFILL }},
 528     { &hf_quake_control_command,
 529       { "Command", "quake.control.command",
 530         FT_UINT8, BASE_HEX, VALS(names_control_command), 0x0,
 531         "Control Command", HFILL }},
 532     { &hf_quake_CCREQ_CONNECT_game,
 533       { "Game", "quake.control.connect.game",
 534         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 535         "Game Name", HFILL }},
 536     { &hf_quake_CCREQ_CONNECT_version,
 537       { "Version", "quake.control.connect.version",
 538         FT_UINT8, BASE_DEC, NULL, 0x0,
 539         "Game Protocol Version Number", HFILL }},
 540     { &hf_quake_CCREQ_SERVER_INFO_game,
 541       { "Game", "quake.control.server_info.game",
 542         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 543         "Game Name", HFILL }},
 544     { &hf_quake_CCREQ_SERVER_INFO_version,
 545       { "Version", "quake.control.server_info.version",
 546         FT_UINT8, BASE_DEC, NULL, 0x0,
 547         "Game Protocol Version Number", HFILL }},
 548     { &hf_quake_CCREQ_PLAYER_INFO_player,
 549       { "Player", "quake.control.player_info.player",
 550         FT_UINT8, BASE_DEC, NULL, 0x0,
 551         NULL, HFILL }},
 552     { &hf_quake_CCREQ_RULE_INFO_lastrule,
 553       { "Last Rule", "quake.control.rule_info.lastrule",
 554         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 555         "Last Rule Name", HFILL }},
 556     { &hf_quake_CCREP_ACCEPT_port,
 557       { "Port", "quake.control.accept.port",
 558         FT_UINT32, BASE_DEC, NULL, 0x0,
 559         "Game Data Port", HFILL }},
 560     { &hf_quake_CCREP_REJECT_reason,
 561       { "Reason", "quake.control.reject.reason",
 562         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 563         "Reject Reason", HFILL }},
 564     { &hf_quake_CCREP_SERVER_INFO_address,
 565       { "Address", "quake.control.server_info.address",
 566         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 567         "Server Address", HFILL }},
 568     { &hf_quake_CCREP_SERVER_INFO_server,
 569       { "Server", "quake.control.server_info.server",
 570         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 571         "Server Name", HFILL }},
 572     { &hf_quake_CCREP_SERVER_INFO_map,
 573       { "Map", "quake.control.server_info.map",
 574         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 575         "Map Name", HFILL }},
 576     { &hf_quake_CCREP_SERVER_INFO_num_player,
 577       { "Number of Players", "quake.control.server_info.num_player",
 578         FT_UINT8, BASE_DEC, NULL, 0x0,
 579         "Current Number of Players", HFILL }},
 580     { &hf_quake_CCREP_SERVER_INFO_max_player,
 581       { "Maximal Number of Players", "quake.control.server_info.max_player",
 582         FT_UINT8, BASE_DEC, NULL, 0x0,
 583         NULL, HFILL }},
 584     { &hf_quake_CCREP_PLAYER_INFO_name,
 585       { "Name", "quake.control.player_info.name",
 586         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 587         "Player Name", HFILL }},
 588     { &hf_quake_CCREP_PLAYER_INFO_colors,
 589       { "Colors", "quake.control.player_info.colors",
 590         FT_UINT32, BASE_HEX, NULL, 0x0,
 591         "Player Colors", HFILL }},
 592     { &hf_quake_CCREP_PLAYER_INFO_colors_shirt,
 593       { "Shirt", "quake.control.player_info.colors.shirt",
 594         FT_UINT8, BASE_DEC, VALS(names_colors), 0x0,
 595         "Shirt Color", HFILL }},
 596     { &hf_quake_CCREP_PLAYER_INFO_colors_pants,
 597       { "Pants", "quake.control.player_info.colors.pants",
 598         FT_UINT8, BASE_DEC, VALS(names_colors), 0x0,
 599         "Pants Color", HFILL }},
 600     { &hf_quake_CCREP_PLAYER_INFO_frags,
 601       { "Frags", "quake.control.player_info.frags",
 602         FT_UINT32, BASE_DEC, NULL, 0x0,
 603         "Player Frags", HFILL }},
 604     { &hf_quake_CCREP_PLAYER_INFO_connect_time,
 605       { "Connect Time", "quake.control.player_info.connect_time",
 606         FT_UINT32, BASE_DEC, NULL, 0x0,
 607         "Player Connect Time", HFILL }},
 608     { &hf_quake_CCREP_PLAYER_INFO_address,
 609       { "Address", "quake.control.player_info.address",
 610         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 611         "Player Address", HFILL }},
 612     { &hf_quake_CCREP_RULE_INFO_rule,
 613       { "Rule", "quake.control.rule_info.rule",
 614         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 615         "Rule Name", HFILL }},
 616     { &hf_quake_CCREP_RULE_INFO_value,
 617       { "Value", "quake.control.rule_info.value",
 618         FT_STRINGZ, BASE_NONE, NULL, 0x0,
 619         "Rule Value", HFILL }},
 620   };
 621         static gint *ett[] = {
 622                 &ett_quake,
 623                 &ett_quake_control,
 624                 &ett_quake_control_colors,
 625                 &ett_quake_flags,
 626         };
 627         module_t *quake_module;
 628
 629         proto_quake = proto_register_protocol("Quake Network Protocol",
 630                                         "QUAKE", "quake");
 631         proto_register_field_array(proto_quake, hf, array_length(hf));
 632         proto_register_subtree_array(ett, array_length(ett));
 633
 634         /* Register a configuration option for port */
 635         quake_module = prefs_register_protocol(proto_quake,
 636                 proto_reg_handoff_quake);
 637         prefs_register_uint_preference(quake_module, "udp.port",
 638                                         "Quake Server UDP Port",
 639                                         "Set the UDP port for the Quake Server",
 640                                         10, &gbl_quakeServerPort);
 641 }
 642
 643
 644 void
 645 proto_reg_handoff_quake(void)
 646 {
 647         static gboolean Initialized=FALSE;
 648         static guint ServerPort;
 649
 650         if (!Initialized) {
 651                 quake_handle = create_dissector_handle(dissect_quake, proto_quake);
 652                 data_handle = find_dissector("data");
 653                 Initialized=TRUE;
 654         } else {
 655                 dissector_delete_uint("udp.port", ServerPort, quake_handle);
 656         }
 657
 658         /* set port for future deletes */
 659         ServerPort=gbl_quakeServerPort;
 660
 661         dissector_add_uint("udp.port", gbl_quakeServerPort, quake_handle);
 662 }
 663
 664