2 * Routines for QuakeWorld packet dissection
4 * Uwe Girlich <uwe@planetquake.com>
5 * http://www.idsoftware.com/q1source/q1source.zip
7 * $Id: packet-quakeworld.c,v 1.19 2003/09/21 20:06:01 gerald Exp $
9 * Ethereal - Network traffic analyzer
10 * By Gerald Combs <gerald@ethereal.com>
11 * Copyright 1998 Gerald Combs
13 * Copied from packet-quake.c
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 #include <epan/packet.h>
39 static int proto_quakeworld = -1;
41 static int hf_quakeworld_s2c = -1;
42 static int hf_quakeworld_c2s = -1;
43 static int hf_quakeworld_connectionless = -1;
44 static int hf_quakeworld_game = -1;
45 static int hf_quakeworld_connectionless_marker = -1;
46 static int hf_quakeworld_connectionless_text = -1;
47 static int hf_quakeworld_connectionless_command = -1;
48 static int hf_quakeworld_connectionless_arguments = -1;
49 static int hf_quakeworld_connectionless_connect_version = -1;
50 static int hf_quakeworld_connectionless_connect_qport = -1;
51 static int hf_quakeworld_connectionless_connect_challenge = -1;
52 static int hf_quakeworld_connectionless_connect_infostring = -1;
53 static int hf_quakeworld_connectionless_connect_infostring_key_value = -1;
54 static int hf_quakeworld_connectionless_connect_infostring_key = -1;
55 static int hf_quakeworld_connectionless_connect_infostring_value = -1;
56 static int hf_quakeworld_connectionless_rcon_password = -1;
57 static int hf_quakeworld_connectionless_rcon_command = -1;
58 static int hf_quakeworld_game_seq1 = -1;
59 static int hf_quakeworld_game_rel1 = -1;
60 static int hf_quakeworld_game_seq2 = -1;
61 static int hf_quakeworld_game_rel2 = -1;
62 static int hf_quakeworld_game_qport = -1;
64 static gint ett_quakeworld = -1;
65 static gint ett_quakeworld_connectionless = -1;
66 static gint ett_quakeworld_connectionless_text = -1;
67 static gint ett_quakeworld_connectionless_arguments = -1;
68 static gint ett_quakeworld_connectionless_connect_infostring = -1;
69 static gint ett_quakeworld_connectionless_connect_infostring_key_value = -1;
70 static gint ett_quakeworld_game = -1;
71 static gint ett_quakeworld_game_seq1 = -1;
72 static gint ett_quakeworld_game_seq2 = -1;
73 static gint ett_quakeworld_game_clc = -1;
74 static gint ett_quakeworld_game_svc = -1;
76 static dissector_handle_t data_handle;
79 helper functions, they may ave to go somewhere else
80 they are mostly copied without change from
81 quakeworldsource/client/cmd.c
82 quakeworldsource/client/common.c
85 #define MAX_TEXT_SIZE 2048
87 static char com_token[MAX_TEXT_SIZE+1];
88 static int com_token_start;
89 static int com_token_length;
92 COM_Parse (char *data)
100 com_token_length = 0;
105 /* skip whitespace */
107 while ( (c = *data) <= ' ') {
109 return NULL; /* end of file; */
114 /* skip // comments */
115 if (c=='/' && data[1] == '/') {
116 while (*data && *data != '\n')
122 /* handle quoted strings specially */
128 if (c=='\"' || c==0) {
138 /* parse a regular word */
153 static int cmd_argc = 0;
154 static char *cmd_argv[MAX_ARGS];
155 static char *cmd_null_string = "";
156 static int cmd_argv_start[MAX_ARGS];
157 static int cmd_argv_length[MAX_ARGS];
171 if ( arg >= cmd_argc )
172 return cmd_null_string;
173 return cmd_argv[arg];
178 Cmd_Argv_start(int arg)
180 if ( arg >= cmd_argc )
182 return cmd_argv_start[arg];
187 Cmd_Argv_length(int arg)
189 if ( arg >= cmd_argc )
191 return cmd_argv_length[arg];
196 Cmd_TokenizeString(char* text)
203 /* clear the args from the last string */
204 for (i=0 ; i<cmd_argc ; i++)
212 /* skip whitespace up to a \n */
213 while (*text && *text <= ' ' && *text != '\n') {
221 /* a newline seperates commands in the buffer */
229 text = COM_Parse (text);
233 if (cmd_argc < MAX_ARGS) {
234 cmd_argv[cmd_argc] = g_strdup(com_token);
235 cmd_argv_start[cmd_argc] = start + com_token_start;
236 cmd_argv_length[cmd_argc] = com_token_length;
240 start += com_token_start + com_token_length;
246 dissect_id_infostring(tvbuff_t *tvb, proto_tree* tree,
247 int offset, char* infostring,
248 gint ett_key_value, int hf_key_value, int hf_key, int hf_value)
250 char * newpos = infostring;
251 int end_of_info = FALSE;
253 /* to look at all the key/value pairs, we destroy infostring */
254 while(!end_of_info) {
263 if (*keypos == 0) break;
264 if (*keypos == '\\') keypos++;
268 *(keypos + keylength) != '\\' &&
269 *(keypos + keylength) != 0
272 keyvaluesep = keypos + keylength;
273 if (*keyvaluesep == 0) break;
274 valuepos = keyvaluesep+1;
277 *(valuepos + valuelength) != '\\' &&
278 *(valuepos + valuelength) != 0
281 valueend = valuepos + valuelength;
282 if (*valueend == 0) {
285 *(keyvaluesep) = '=';
289 proto_item* sub_item = NULL;
290 proto_tree* sub_tree = NULL;
292 sub_item = proto_tree_add_string(tree,
295 offset + (keypos-infostring),
296 keylength + 1 + valuelength, keypos);
299 proto_item_add_subtree(
304 proto_tree_add_string(sub_tree,
307 offset + (keypos-infostring),
309 proto_tree_add_string(sub_tree,
312 offset + (valuepos-infostring),
313 valuelength, valuepos);
316 newpos = valueend + 1;
321 static const value_string names_direction[] = {
323 { DIR_C2S, "Client to Server" },
325 { DIR_S2C, "Server to Client" },
330 /* I took this name and value directly out of the QW source. */
331 #define PORT_MASTER 27500
332 static unsigned int gbl_quakeworldServerPort=PORT_MASTER;
335 /* out of band message id bytes (taken out of quakeworldsource/client/protocol.h */
337 /* M = master, S = server, C = client, A = any */
338 /* the second character will allways be \n if the message isn't a single */
339 /* byte long (?? not true anymore?) */
341 #define S2C_CHALLENGE 'c'
342 #define S2C_CONNECTION 'j'
343 #define A2A_PING 'k' /* respond with an A2A_ACK */
344 #define A2A_ACK 'l' /* general acknowledgement without info */
345 #define A2A_NACK 'm' /* [+ comment] general failure */
346 #define A2A_ECHO 'e' /* for echoing */
347 #define A2C_PRINT 'n' /* print a message on client */
349 #define S2M_HEARTBEAT 'a' /* + serverinfo + userlist + fraglist */
350 #define A2C_CLIENT_COMMAND 'B' /* + command line */
351 #define S2M_SHUTDOWN 'C'
355 dissect_quakeworld_ConnectionlessPacket(tvbuff_t *tvb, packet_info *pinfo,
356 proto_tree *tree, int direction)
358 proto_tree *cl_tree = NULL;
359 proto_item *cl_item = NULL;
360 proto_item *text_item = NULL;
361 proto_tree *text_tree = NULL;
362 guint8 text[MAX_TEXT_SIZE+1];
367 char command[MAX_TEXT_SIZE+1];
368 int command_finished = FALSE;
370 marker = tvb_get_ntohl(tvb, 0);
372 cl_item = proto_tree_add_text(tree, tvb,
373 0, -1, "Connectionless");
375 cl_tree = proto_item_add_subtree(
376 cl_item, ett_quakeworld_connectionless);
380 proto_tree_add_uint(cl_tree, hf_quakeworld_connectionless_marker,
384 /* all the rest of the packet is just text */
387 len = tvb_get_nstringz0(tvb, offset, sizeof(text), text);
388 /* actually, we should look for a eol char and stop already there */
391 text_item = proto_tree_add_string(cl_tree, hf_quakeworld_connectionless_text,
392 tvb, offset, len + 1, text);
394 text_tree = proto_item_add_subtree(
395 text_item, ett_quakeworld_connectionless_text);
399 if (direction == DIR_C2S) {
400 /* client to sever commands */
403 Cmd_TokenizeString(text);
406 /* client to sever commands */
407 if (strcmp(c,"ping") == 0) {
408 strcpy(command, "Ping");
410 } else if (strcmp(c,"status") == 0) {
411 strcpy(command, "Status");
413 } else if (strcmp(c,"log") == 0) {
414 strcpy(command, "Status");
416 } else if (strcmp(c,"connect") == 0) {
421 proto_item *argument_item = NULL;
422 proto_tree *argument_tree = NULL;
423 proto_item *info_item = NULL;
424 proto_tree *info_tree = NULL;
425 strcpy(command, "Connect");
426 command_len = Cmd_Argv_length(0);
428 proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
429 tvb, offset, command_len, command);
430 argument_item = proto_tree_add_string(text_tree,
431 hf_quakeworld_connectionless_arguments,
432 tvb, offset + Cmd_Argv_start(1), len + 1 - Cmd_Argv_start(1),
433 text + Cmd_Argv_start(1));
436 proto_item_add_subtree(argument_item,
437 ett_quakeworld_connectionless_arguments);
439 command_finished=TRUE;
441 version = atoi(Cmd_Argv(1));
442 qport = atoi(Cmd_Argv(2));
443 challenge = atoi(Cmd_Argv(3));
444 infostring = Cmd_Argv(4);
446 proto_tree_add_uint(argument_tree,
447 hf_quakeworld_connectionless_connect_version,
449 offset + Cmd_Argv_start(1),
450 Cmd_Argv_length(1), version);
451 proto_tree_add_uint(argument_tree,
452 hf_quakeworld_connectionless_connect_qport,
454 offset + Cmd_Argv_start(2),
455 Cmd_Argv_length(2), qport);
456 proto_tree_add_int(argument_tree,
457 hf_quakeworld_connectionless_connect_challenge,
459 offset + Cmd_Argv_start(3),
460 Cmd_Argv_length(3), challenge);
461 info_item = proto_tree_add_string(argument_tree,
462 hf_quakeworld_connectionless_connect_infostring,
464 offset + Cmd_Argv_start(4),
465 Cmd_Argv_length(4), infostring);
467 info_tree = proto_item_add_subtree(
468 info_item, ett_quakeworld_connectionless_connect_infostring);
469 dissect_id_infostring(tvb, info_tree, offset + Cmd_Argv_start(4),
471 ett_quakeworld_connectionless_connect_infostring_key_value,
472 hf_quakeworld_connectionless_connect_infostring_key_value,
473 hf_quakeworld_connectionless_connect_infostring_key,
474 hf_quakeworld_connectionless_connect_infostring_value);
476 } else if (strcmp(c,"getchallenge") == 0) {
477 strcpy(command, "Get Challenge");
478 command_len = Cmd_Argv_length(0);
479 } else if (strcmp(c,"rcon") == 0) {
482 char remaining[MAX_TEXT_SIZE+1];
483 proto_item *argument_item = NULL;
484 proto_tree *argument_tree = NULL;
485 strcpy(command, "Remote Command");
486 command_len = Cmd_Argv_length(0);
488 proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
489 tvb, offset, command_len, command);
490 argument_item = proto_tree_add_string(text_tree,
491 hf_quakeworld_connectionless_arguments,
492 tvb, offset + Cmd_Argv_start(1), len + 1 - Cmd_Argv_start(1),
493 text + Cmd_Argv_start(1));
496 proto_item_add_subtree(argument_item,
497 ett_quakeworld_connectionless_arguments);
499 command_finished=TRUE;
501 password = Cmd_Argv(1);
503 proto_tree_add_string(argument_tree,
504 hf_quakeworld_connectionless_rcon_password,
506 offset + Cmd_Argv_start(1),
507 Cmd_Argv_length(1), password);
509 for (i=2; i<Cmd_Argc() ; i++) {
511 strcat (remaining, Cmd_Argv(i) );
512 strcat (remaining, " ");
515 proto_tree_add_string(argument_tree,
516 hf_quakeworld_connectionless_rcon_command,
517 tvb, offset + Cmd_Argv_start(2),
518 Cmd_Argv_start(Cmd_Argc()-1) + Cmd_Argv_length(Cmd_Argc()-1) -
522 } else if (c[0]==A2A_PING && ( c[1]==0 || c[1]=='\n')) {
523 strcpy(command, "Ping");
525 } else if (c[0]==A2A_ACK && ( c[1]==0 || c[1]=='\n')) {
526 strcpy(command, "Ack");
529 strcpy(command, "Unknown");
534 /* server to client commands */
535 if (text[0] == S2C_CONNECTION) {
536 strcpy(command, "Connected");
538 } else if (text[0] == A2C_CLIENT_COMMAND) {
539 strcpy(command, "Client Command");
541 /* stringz (command), stringz (localid) */
542 } else if (text[0] == A2C_PRINT) {
543 strcpy(command, "Print");
546 } else if (text[0] == A2A_PING) {
547 strcpy(command, "Ping");
549 } else if (text[0] == S2C_CHALLENGE) {
550 strcpy(command, "Challenge");
554 strcpy(command, "Unknown");
559 if (check_col(pinfo->cinfo, COL_INFO)) {
560 col_append_fstr(pinfo->cinfo, COL_INFO, " %s", command);
563 if (text_tree && !command_finished) {
564 proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
565 tvb, offset, command_len, command);
572 dissect_quakeworld_client_commands(tvbuff_t *tvb, packet_info *pinfo,
575 /* If I have too much time at hand, I'll fill it with all
576 the information from my QWD specs:
577 http://www.planetquake.com/demospecs/qwd/
579 call_dissector(data_handle,tvb, pinfo, tree);
584 dissect_quakeworld_server_commands(tvbuff_t *tvb, packet_info *pinfo,
587 /* If I have too much time at hand, I'll fill it with all
588 the information from my QWD specs:
589 http://www.planetquake.com/demospecs/qwd/
591 call_dissector(data_handle,tvb, pinfo, tree);
595 static const value_string names_reliable[] = {
596 { 0, "Non Reliable" },
603 dissect_quakeworld_GamePacket(tvbuff_t *tvb, packet_info *pinfo,
604 proto_tree *tree, int direction)
606 proto_tree *game_tree = NULL;
607 proto_item *game_item = NULL;
615 direction = (pinfo->destport == gbl_quakeworldServerPort) ?
619 game_item = proto_tree_add_text(tree, tvb,
622 game_tree = proto_item_add_subtree(
623 game_item, ett_quakeworld_game);
628 seq1 = tvb_get_letohl(tvb, offset);
629 rel1 = seq1 & 0x80000000 ? 1 : 0;
632 proto_item *seq1_item = proto_tree_add_text(game_tree,
633 tvb, offset, 4, "Current Sequence: %u (%s)",
634 seq1, val_to_str(rel1,names_reliable,"%u"));
636 proto_tree *seq1_tree = proto_item_add_subtree(
637 seq1_item, ett_quakeworld_game_seq1);
638 proto_tree_add_uint(seq1_tree, hf_quakeworld_game_seq1,
639 tvb, offset, 4, seq1);
640 proto_tree_add_boolean(seq1_tree, hf_quakeworld_game_rel1,
641 tvb, offset+3, 1, rel1);
646 seq2 = tvb_get_letohl(tvb, offset);
647 rel2 = seq2 & 0x80000000 ? 1 : 0;
650 proto_item *seq2_item = proto_tree_add_text(game_tree,
651 tvb, offset, 4, "Acknowledge Sequence: %u (%s)",
652 seq2, val_to_str(rel2,names_reliable,"%u"));
654 proto_tree *seq2_tree = proto_item_add_subtree(
655 seq2_item, ett_quakeworld_game_seq2);
656 proto_tree_add_uint(seq2_tree, hf_quakeworld_game_seq2,
657 tvb, offset, 4, seq2);
658 proto_tree_add_boolean(seq2_tree, hf_quakeworld_game_rel2,
659 tvb, offset+3, 1, rel2);
664 if (direction == DIR_C2S) {
665 /* client to server */
666 guint16 qport = tvb_get_letohs(tvb, offset);
668 proto_tree_add_uint(game_tree, hf_quakeworld_game_qport,
669 tvb, offset, 2, qport);
674 /* all the rest is pure game data */
675 rest_length = tvb_reported_length(tvb) - offset;
678 tvb_new_subset(tvb, offset, rest_length , rest_length);
680 if (direction == DIR_C2S) {
681 proto_item *c_item = NULL;
682 proto_tree *c_tree = NULL;
684 c_item = proto_tree_add_text(game_tree, next_tvb,
685 0, -1, "Client Commands");
687 c_tree = proto_item_add_subtree(
688 c_item, ett_quakeworld_game_clc);
691 dissect_quakeworld_client_commands(next_tvb, pinfo, c_tree);
694 proto_item *c_item = NULL;
695 proto_tree *c_tree = NULL;
697 c_item = proto_tree_add_text(game_tree, next_tvb,
698 0, -1, "Server Commands");
700 c_tree = proto_item_add_subtree(
701 c_item, ett_quakeworld_game_svc);
704 dissect_quakeworld_server_commands(next_tvb, pinfo, c_tree);
711 dissect_quakeworld(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
713 proto_tree *quakeworld_tree = NULL;
714 proto_item *quakeworld_item = NULL;
717 direction = (pinfo->destport == gbl_quakeworldServerPort) ?
720 if (check_col(pinfo->cinfo, COL_PROTOCOL))
721 col_set_str(pinfo->cinfo, COL_PROTOCOL, "QUAKEWORLD");
722 if (check_col(pinfo->cinfo, COL_INFO))
723 col_set_str(pinfo->cinfo, COL_INFO, val_to_str(direction,
724 names_direction, "%u"));
727 quakeworld_item = proto_tree_add_item(tree, proto_quakeworld,
730 quakeworld_tree = proto_item_add_subtree(
731 quakeworld_item, ett_quakeworld);
732 if (quakeworld_tree) {
733 proto_tree_add_uint_format(quakeworld_tree,
734 direction == DIR_S2C ?
738 "Direction: %s", val_to_str(direction, names_direction, "%u"));
742 if (tvb_get_ntohl(tvb, 0) == 0xffffffff) {
743 if (check_col(pinfo->cinfo, COL_INFO)) {
744 col_append_str(pinfo->cinfo, COL_INFO, " Connectionless");
747 proto_tree_add_uint_format(quakeworld_tree,
748 hf_quakeworld_connectionless,
750 "Type: Connectionless");
751 dissect_quakeworld_ConnectionlessPacket(
752 tvb, pinfo, quakeworld_tree, direction);
755 if (check_col(pinfo->cinfo, COL_INFO)) {
756 col_append_str(pinfo->cinfo, COL_INFO, " Game");
759 proto_tree_add_uint_format(quakeworld_tree,
763 dissect_quakeworld_GamePacket(
764 tvb, pinfo, quakeworld_tree, direction);
770 proto_reg_handoff_quakeworld(void)
772 static int Initialized=FALSE;
773 static dissector_handle_t quakeworld_handle;
774 static int ServerPort=0;
777 quakeworld_handle = create_dissector_handle(dissect_quakeworld,
781 dissector_delete("udp.port", ServerPort, quakeworld_handle);
784 /* set port for future deletes */
785 ServerPort=gbl_quakeworldServerPort;
787 dissector_add("udp.port", gbl_quakeworldServerPort, quakeworld_handle);
788 data_handle = find_dissector("data");
793 proto_register_quakeworld(void)
795 static hf_register_info hf[] = {
796 { &hf_quakeworld_c2s,
797 { "Client to Server", "quakeworld.c2s",
798 FT_UINT32, BASE_DEC, NULL, 0x0,
799 "Client to Server", HFILL }},
800 { &hf_quakeworld_s2c,
801 { "Server to Client", "quakeworld.s2c",
802 FT_UINT32, BASE_DEC, NULL, 0x0,
803 "Server to Client", HFILL }},
804 { &hf_quakeworld_connectionless,
805 { "Connectionless", "quakeworld.connectionless",
806 FT_UINT32, BASE_DEC, NULL, 0x0,
807 "Connectionless", HFILL }},
808 { &hf_quakeworld_game,
809 { "Game", "quakeworld.game",
810 FT_UINT32, BASE_DEC, NULL, 0x0,
812 { &hf_quakeworld_connectionless_marker,
813 { "Marker", "quakeworld.connectionless.marker",
814 FT_UINT32, BASE_HEX, NULL, 0x0,
816 { &hf_quakeworld_connectionless_text,
817 { "Text", "quakeworld.connectionless.text",
818 FT_STRING, BASE_DEC, NULL, 0x0,
820 { &hf_quakeworld_connectionless_command,
821 { "Command", "quakeworld.connectionless.command",
822 FT_STRING, BASE_DEC, NULL, 0x0,
824 { &hf_quakeworld_connectionless_arguments,
825 { "Arguments", "quakeworld.connectionless.arguments",
826 FT_STRING, BASE_DEC, NULL, 0x0,
827 "Arguments", HFILL }},
828 { &hf_quakeworld_connectionless_connect_version,
829 { "Version", "quakeworld.connectionless.connect.version",
830 FT_UINT32, BASE_DEC, NULL, 0x0,
831 "Protocol Version", HFILL }},
832 { &hf_quakeworld_connectionless_connect_qport,
833 { "QPort", "quakeworld.connectionless.connect.qport",
834 FT_UINT32, BASE_DEC, NULL, 0x0,
835 "QPort of the client", HFILL }},
836 { &hf_quakeworld_connectionless_connect_challenge,
837 { "Challenge", "quakeworld.connectionless.connect.challenge",
838 FT_INT32, BASE_DEC, NULL, 0x0,
839 "Challenge from the server", HFILL }},
840 { &hf_quakeworld_connectionless_connect_infostring,
841 { "Infostring", "quakeworld.connectionless.connect.infostring",
842 FT_STRING, BASE_DEC, NULL, 0x0,
843 "Infostring with additional variables", HFILL }},
844 { &hf_quakeworld_connectionless_connect_infostring_key_value,
845 { "Key/Value", "quakeworld.connectionless.connect.infostring.key_value",
846 FT_STRING, BASE_DEC, NULL, 0x0,
847 "Key and Value", HFILL }},
848 { &hf_quakeworld_connectionless_connect_infostring_key,
849 { "Key", "quakeworld.connectionless.connect.infostring.key",
850 FT_STRING, BASE_DEC, NULL, 0x0,
851 "Infostring Key", HFILL }},
852 { &hf_quakeworld_connectionless_connect_infostring_value,
853 { "Value", "quakeworld.connectionless.connect.infostring.value",
854 FT_STRING, BASE_DEC, NULL, 0x0,
855 "Infostring Value", HFILL }},
856 { &hf_quakeworld_connectionless_rcon_password,
857 { "Password", "quakeworld.connectionless.rcon.password",
858 FT_STRING, BASE_DEC, NULL, 0x0,
859 "Rcon Password", HFILL }},
860 { &hf_quakeworld_connectionless_rcon_command,
861 { "Command", "quakeworld.connectionless.rcon.command",
862 FT_STRING, BASE_DEC, NULL, 0x0,
864 { &hf_quakeworld_game_seq1,
865 { "Sequence Number", "quakeworld.game.seq1",
866 FT_UINT32, BASE_DEC, NULL, 0x0,
867 "Sequence number of the current packet", HFILL }},
868 { &hf_quakeworld_game_rel1,
869 { "Reliable", "quakeworld.game.rel1",
870 FT_BOOLEAN, BASE_DEC, NULL, 0x0,
871 "Packet is reliable and may be retransmitted", HFILL }},
872 { &hf_quakeworld_game_seq2,
873 { "Sequence Number", "quakeworld.game.seq2",
874 FT_UINT32, BASE_DEC, NULL, 0x0,
875 "Sequence number of the last received packet", HFILL }},
876 { &hf_quakeworld_game_rel2,
877 { "Reliable", "quakeworld.game.rel2",
878 FT_BOOLEAN, BASE_DEC, NULL, 0x0,
879 "Packet was reliable and may be retransmitted", HFILL }},
880 { &hf_quakeworld_game_qport,
881 { "QPort", "quakeworld.game.qport",
882 FT_UINT32, BASE_DEC, NULL, 0x0,
883 "QuakeWorld Client Port", HFILL }}
885 static gint *ett[] = {
887 &ett_quakeworld_connectionless,
888 &ett_quakeworld_connectionless_text,
889 &ett_quakeworld_connectionless_arguments,
890 &ett_quakeworld_connectionless_connect_infostring,
891 &ett_quakeworld_connectionless_connect_infostring_key_value,
892 &ett_quakeworld_game,
893 &ett_quakeworld_game_seq1,
894 &ett_quakeworld_game_seq2,
895 &ett_quakeworld_game_clc,
896 &ett_quakeworld_game_svc
898 module_t *quakeworld_module;
900 proto_quakeworld = proto_register_protocol("QuakeWorld Network Protocol",
901 "QUAKEWORLD", "quakeworld");
902 proto_register_field_array(proto_quakeworld, hf, array_length(hf));
903 proto_register_subtree_array(ett, array_length(ett));
905 /* Register a configuration option for port */
906 quakeworld_module = prefs_register_protocol(proto_quakeworld,
907 proto_reg_handoff_quakeworld);
908 prefs_register_uint_preference(quakeworld_module, "udp.port",
909 "QuakeWorld Server UDP Port",
910 "Set the UDP port for the QuakeWorld Server",
911 10, &gbl_quakeworldServerPort);