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wireshark/epan/dissectors/packet-quakeworld.c

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/* packet-quakeworld.c
* Routines for QuakeWorld packet dissection
*
* Uwe Girlich <uwe@planetquake.com>
* http://www.idsoftware.com/q1source/q1source.zip
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-quake.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdlib.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include <wsutil/strtoi.h>
void proto_register_quakeworld(void);
void proto_reg_handoff_quakeworld(void);
static int proto_quakeworld = -1;
static int hf_quakeworld_s2c = -1;
static int hf_quakeworld_c2s = -1;
static int hf_quakeworld_connectionless = -1;
static int hf_quakeworld_game = -1;
static int hf_quakeworld_connectionless_marker = -1;
static int hf_quakeworld_connectionless_text = -1;
static int hf_quakeworld_connectionless_command = -1;
static int hf_quakeworld_connectionless_arguments = -1;
static int hf_quakeworld_connectionless_connect_version = -1;
static int hf_quakeworld_connectionless_connect_qport = -1;
static int hf_quakeworld_connectionless_connect_challenge = -1;
static int hf_quakeworld_connectionless_connect_infostring = -1;
static int hf_quakeworld_connectionless_connect_infostring_key_value = -1;
static int hf_quakeworld_connectionless_connect_infostring_key = -1;
static int hf_quakeworld_connectionless_connect_infostring_value = -1;
static int hf_quakeworld_connectionless_rcon_password = -1;
static int hf_quakeworld_connectionless_rcon_command = -1;
static int hf_quakeworld_game_seq1 = -1;
static int hf_quakeworld_game_rel1 = -1;
static int hf_quakeworld_game_seq2 = -1;
static int hf_quakeworld_game_rel2 = -1;
static int hf_quakeworld_game_qport = -1;
static gint ett_quakeworld = -1;
static gint ett_quakeworld_connectionless = -1;
static gint ett_quakeworld_connectionless_text = -1;
static gint ett_quakeworld_connectionless_arguments = -1;
static gint ett_quakeworld_connectionless_connect_infostring = -1;
static gint ett_quakeworld_connectionless_connect_infostring_key_value = -1;
static gint ett_quakeworld_game = -1;
static gint ett_quakeworld_game_seq1 = -1;
static gint ett_quakeworld_game_seq2 = -1;
static gint ett_quakeworld_game_clc = -1;
static gint ett_quakeworld_game_svc = -1;
static expert_field ei_quakeworld_connectionless_command_invalid = EI_INIT;
/*
helper functions, they may ave to go somewhere else
they are mostly copied without change from
quakeworldsource/client/cmd.c
quakeworldsource/client/common.c
*/
#define MAX_TEXT_SIZE 2048
static const char *
COM_Parse (const char *data, int data_len, int* token_start, int* token_len)
{
int c;
char* com_token = (char*)wmem_alloc(wmem_packet_scope(), data_len+1);
com_token[0] = '\0';
*token_start = 0;
*token_len = 0;
if (data == NULL)
return NULL;
/* skip whitespace */
skipwhite:
while (TRUE) {
c = *data;
if (c == '\0')
return NULL; /* end of file; */
if ((c != ' ') && (!g_ascii_iscntrl(c)))
break;
data++;
(*token_start)++;
}
/* skip // comments */
if ((c=='/') && (data[1]=='/')) {
while (*data && *data != '\n'){
data++;
(*token_start)++;
}
goto skipwhite;
}
/* handle quoted strings specially */
if (c == '\"') {
data++;
(*token_start)++;
while (*token_len < data_len) {
c = *data++;
if ((c=='\"') || (c=='\0')) {
com_token[*token_len] = '\0';
return data;
}
com_token[*token_len] = c;
(*token_len)++;
}
}
if (*token_len == data_len) {
com_token[*token_len] = '\0';
return data;
}
/* parse a regular word */
do {
com_token[*token_len] = c;
data++;
(*token_len)++;
c = *data;
} while (( c != ' ') && (!g_ascii_iscntrl(c)) && (*token_len < data_len));
com_token[*token_len] = '\0';
return data;
}
#define MAX_ARGS 80
static int cmd_argc = 0;
static const char *cmd_argv[MAX_ARGS];
static const char *cmd_null_string = "";
static int cmd_argv_start[MAX_ARGS];
static int cmd_argv_length[MAX_ARGS];
static int
Cmd_Argc(void)
{
return cmd_argc;
}
static const char*
Cmd_Argv(int arg)
{
if ( arg >= cmd_argc )
return cmd_null_string;
return cmd_argv[arg];
}
static int
Cmd_Argv_start(int arg)
{
if ( arg >= cmd_argc )
return 0;
return cmd_argv_start[arg];
}
static int
Cmd_Argv_length(int arg)
{
if ( arg >= cmd_argc )
return 0;
return cmd_argv_length[arg];
}
static void
Cmd_TokenizeString(const char* text, int text_len)
{
int start;
int com_token_start;
int com_token_length;
cmd_argc = 0;
start = 0;
while (start < text_len) {
/* skip whitespace up to a \n */
while (*text && *text <= ' ' && *text != '\n' && start < text_len) {
text++;
start++;
}
if (*text == '\n') {
/* a newline separates commands in the buffer */
text++;
break;
}
if ((!*text) || (start == text_len))
return;
text = COM_Parse (text, text_len-start, &com_token_start, &com_token_length);
if (!text)
return;
if (cmd_argc < MAX_ARGS) {
cmd_argv[cmd_argc] = (char*)text;
cmd_argv_start[cmd_argc] = start + com_token_start;
cmd_argv_length[cmd_argc] = com_token_length;
cmd_argc++;
}
start += com_token_start + com_token_length;
}
}
static void
dissect_id_infostring(tvbuff_t *tvb, proto_tree* tree,
int offset, char* infostring,
gint ett_key_value, int hf_key_value, int hf_key, int hf_value)
{
char *newpos = infostring;
gboolean end_of_info = FALSE;
/* to look at all the key/value pairs, we destroy infostring */
while(!end_of_info) {
char* keypos;
char* valuepos;
int keylength;
char* keyvaluesep;
int valuelength;
char* valueend;
keypos = newpos;
if (*keypos == '\0') break;
if (*keypos == '\\') keypos++;
for (keylength = 0
;
*(keypos + keylength) != '\\' &&
*(keypos + keylength) != '\0'
;
keylength++) ;
keyvaluesep = keypos + keylength;
if (*keyvaluesep == '\0') break;
valuepos = keyvaluesep+1;
for (valuelength = 0
;
*(valuepos + valuelength) != '\\' &&
*(valuepos + valuelength) != '\0'
;
valuelength++) ;
valueend = valuepos + valuelength;
if (*valueend == '\0') {
end_of_info = TRUE;
}
*(keyvaluesep) = '=';
*(valueend) = '\0';
if (tree) {
proto_item* sub_item;
proto_tree* sub_tree;
sub_item = proto_tree_add_string(tree,
hf_key_value,
tvb,
offset + (gint)(keypos-infostring),
keylength + 1 + valuelength, keypos);
sub_tree = proto_item_add_subtree(
sub_item,
ett_key_value);
*(keyvaluesep) = '\0';
proto_tree_add_string(sub_tree,
hf_key,
tvb,
offset + (gint)(keypos-infostring),
keylength, keypos);
proto_tree_add_string(sub_tree,
hf_value,
tvb,
offset + (gint)(valuepos-infostring),
valuelength, valuepos);
}
newpos = valueend + 1;
}
}
static const value_string names_direction[] = {
#define DIR_C2S 0
{ DIR_C2S, "Client to Server" },
#define DIR_S2C 1
{ DIR_S2C, "Server to Client" },
{ 0, NULL }
};
/* I took this name and value directly out of the QW source. */
#define PORT_MASTER 27500 /* Not IANA registered */
static guint gbl_quakeworldServerPort=PORT_MASTER;
/* out of band message id bytes (taken out of quakeworldsource/client/protocol.h */
/* M = master, S = server, C = client, A = any */
/* the second character will allways be \n if the message isn't a single */
/* byte long (?? not true anymore?) */
#define S2C_CHALLENGE 'c'
#define S2C_CONNECTION 'j'
#define A2A_PING 'k' /* respond with an A2A_ACK */
#define A2A_ACK 'l' /* general acknowledgement without info */
#define A2A_NACK 'm' /* [+ comment] general failure */
#define A2A_ECHO 'e' /* for echoing */
#define A2C_PRINT 'n' /* print a message on client */
#define S2M_HEARTBEAT 'a' /* + serverinfo + userlist + fraglist */
#define A2C_CLIENT_COMMAND 'B' /* + command line */
#define S2M_SHUTDOWN 'C'
static void
dissect_quakeworld_ConnectionlessPacket(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, int direction)
{
proto_tree *cl_tree;
proto_tree *text_tree = NULL;
proto_item *pi = NULL;
guint8 *text;
int len;
int offset;
guint32 marker;
int command_len;
const char *command = "";
gboolean command_finished = FALSE;
marker = tvb_get_ntohl(tvb, 0);
cl_tree = proto_tree_add_subtree(tree, tvb, 0, -1, ett_quakeworld_connectionless, NULL, "Connectionless");
proto_tree_add_uint(cl_tree, hf_quakeworld_connectionless_marker,
tvb, 0, 4, marker);
/* all the rest of the packet is just text */
offset = 4;
text = tvb_get_stringz_enc(wmem_packet_scope(), tvb, offset, &len, ENC_ASCII|ENC_NA);
/* actually, we should look for a eol char and stop already there */
if (cl_tree) {
proto_item *text_item;
text_item = proto_tree_add_string(cl_tree, hf_quakeworld_connectionless_text,
tvb, offset, len, text);
text_tree = proto_item_add_subtree(text_item, ett_quakeworld_connectionless_text);
}
if (direction == DIR_C2S) {
/* client to server commands */
const char *c;
Cmd_TokenizeString(text, len);
c = Cmd_Argv(0);
/* client to sever commands */
if (strcmp(c,"ping") == 0) {
command = "Ping";
command_len = 4;
} else if (strcmp(c,"status") == 0) {
command = "Status";
command_len = 6;
} else if (strcmp(c,"log") == 0) {
command = "Log";
command_len = 3;
} else if (strcmp(c,"connect") == 0) {
guint32 version = 0;
guint16 qport = 0;
guint32 challenge = 0;
gboolean version_valid = TRUE;
gboolean qport_valid = TRUE;
gboolean challenge_valid = TRUE;
const char *infostring;
proto_tree *argument_tree = NULL;
command = "Connect";
command_len = Cmd_Argv_length(0);
if (text_tree) {
proto_item *argument_item;
pi = proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
tvb, offset, command_len, command);
argument_item = proto_tree_add_string(text_tree,
hf_quakeworld_connectionless_arguments,
tvb, offset + Cmd_Argv_start(1), len + 1 - Cmd_Argv_start(1),
text + Cmd_Argv_start(1));
argument_tree = proto_item_add_subtree(argument_item,
ett_quakeworld_connectionless_arguments);
command_finished=TRUE;
}
version_valid = ws_strtou32(Cmd_Argv(1), NULL, &version);
qport_valid = ws_strtou16(Cmd_Argv(2), NULL, &qport);
challenge_valid = ws_strtou32(Cmd_Argv(3), NULL, &challenge);
infostring = Cmd_Argv(4);
if (text_tree && (!version_valid || !qport_valid || !challenge_valid))
expert_add_info(pinfo, pi, &ei_quakeworld_connectionless_command_invalid);
if (argument_tree) {
proto_item *info_item;
proto_tree *info_tree;
proto_tree_add_uint(argument_tree,
hf_quakeworld_connectionless_connect_version,
tvb,
offset + Cmd_Argv_start(1),
Cmd_Argv_length(1), version);
proto_tree_add_uint(argument_tree,
hf_quakeworld_connectionless_connect_qport,
tvb,
offset + Cmd_Argv_start(2),
Cmd_Argv_length(2), qport);
proto_tree_add_int(argument_tree,
hf_quakeworld_connectionless_connect_challenge,
tvb,
offset + Cmd_Argv_start(3),
Cmd_Argv_length(3), challenge);
info_item = proto_tree_add_string(argument_tree,
hf_quakeworld_connectionless_connect_infostring,
tvb,
offset + Cmd_Argv_start(4),
Cmd_Argv_length(4), infostring);
info_tree = proto_item_add_subtree(
info_item, ett_quakeworld_connectionless_connect_infostring);
dissect_id_infostring(tvb, info_tree, offset + Cmd_Argv_start(4),
wmem_strdup(wmem_packet_scope(), infostring),
ett_quakeworld_connectionless_connect_infostring_key_value,
hf_quakeworld_connectionless_connect_infostring_key_value,
hf_quakeworld_connectionless_connect_infostring_key,
hf_quakeworld_connectionless_connect_infostring_value);
}
} else if (strcmp(c,"getchallenge") == 0) {
command = "Get Challenge";
command_len = Cmd_Argv_length(0);
} else if (strcmp(c,"rcon") == 0) {
const char* password;
int i;
char remaining[MAX_TEXT_SIZE+1];
proto_tree *argument_tree = NULL;
command = "Remote Command";
command_len = Cmd_Argv_length(0);
if (text_tree) {
proto_item *argument_item;
proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
tvb, offset, command_len, command);
argument_item = proto_tree_add_string(text_tree,
hf_quakeworld_connectionless_arguments,
tvb, offset + Cmd_Argv_start(1), len - Cmd_Argv_start(1),
text + Cmd_Argv_start(1));
argument_tree = proto_item_add_subtree(argument_item,
ett_quakeworld_connectionless_arguments);
command_finished=TRUE;
}
password = Cmd_Argv(1);
if (argument_tree) {
proto_tree_add_string(argument_tree,
hf_quakeworld_connectionless_rcon_password,
tvb,
offset + Cmd_Argv_start(1),
Cmd_Argv_length(1), password);
}
remaining[0] = '\0';
for (i=2; i<Cmd_Argc() ; i++) {
g_strlcat (remaining, Cmd_Argv(i), MAX_TEXT_SIZE+1);
g_strlcat (remaining, " ", MAX_TEXT_SIZE+1);
}
if (text_tree) {
proto_tree_add_string(argument_tree,
hf_quakeworld_connectionless_rcon_command,
tvb, offset + Cmd_Argv_start(2),
Cmd_Argv_start(Cmd_Argc()-1) + Cmd_Argv_length(Cmd_Argc()-1) -
Cmd_Argv_start(2),
remaining);
}
} else if (c[0]==A2A_PING && ( c[1]=='\0' || c[1]=='\n')) {
command = "Ping";
command_len = 1;
} else if (c[0]==A2A_ACK && ( c[1]=='\0' || c[1]=='\n')) {
command = "Ack";
command_len = 1;
} else {
command = "Unknown";
command_len = len - 1;
}
}
else {
/* server to client commands */
if (text[0] == S2C_CONNECTION) {
command = "Connected";
command_len = 1;
} else if (text[0] == A2C_CLIENT_COMMAND) {
command = "Client Command";
command_len = 1;
/* stringz (command), stringz (localid) */
} else if (text[0] == A2C_PRINT) {
command = "Print";
command_len = 1;
/* string */
} else if (text[0] == A2A_PING) {
command = "Ping";
command_len = 1;
} else if (text[0] == S2C_CHALLENGE) {
command = "Challenge";
command_len = 1;
/* string, conversion */
} else {
command = "Unknown";
command_len = len - 1;
}
}
col_append_fstr(pinfo->cinfo, COL_INFO, " %s", command);
if (!command_finished) {
proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
tvb, offset, command_len, command);
}
/*offset += len;*/
}
static void
dissect_quakeworld_client_commands(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree)
{
/* If I have too much time at hand, I'll fill it with all
the information from my QWD specs:
http://www.planetquake.com/demospecs/qwd/
*/
call_data_dissector(tvb, pinfo, tree);
}
static void
dissect_quakeworld_server_commands(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree)
{
/* If I have too much time at hand, I'll fill it with all
the information from my QWD specs:
http://www.planetquake.com/demospecs/qwd/
*/
call_data_dissector(tvb, pinfo, tree);
}
static const value_string names_reliable[] = {
{ 0, "Non Reliable" },
{ 1, "Reliable" },
{ 0, NULL }
};
static void
dissect_quakeworld_GamePacket(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, int direction)
{
proto_tree *game_tree = NULL;
guint32 seq1;
guint32 seq2;
int rel1;
int rel2;
int offset;
guint rest_length;
direction = (pinfo->destport == gbl_quakeworldServerPort) ?
DIR_C2S : DIR_S2C;
game_tree = proto_tree_add_subtree(tree, tvb, 0, -1, ett_quakeworld_game, NULL, "Game");
offset = 0;
seq1 = tvb_get_letohl(tvb, offset);
rel1 = seq1 & 0x80000000 ? 1 : 0;
seq1 &= ~0x80000000;
if (game_tree) {
proto_tree *seq1_tree = proto_tree_add_subtree_format(game_tree,
tvb, offset, 4, ett_quakeworld_game_seq1, NULL, "Current Sequence: %u (%s)",
seq1, val_to_str(rel1,names_reliable,"%u"));
proto_tree_add_uint(seq1_tree, hf_quakeworld_game_seq1,
tvb, offset, 4, seq1);
proto_tree_add_boolean(seq1_tree, hf_quakeworld_game_rel1,
tvb, offset+3, 1, rel1);
}
offset += 4;
seq2 = tvb_get_letohl(tvb, offset);
rel2 = seq2 & 0x80000000 ? 1 : 0;
seq2 &= ~0x80000000;
if (game_tree) {
proto_tree *seq2_tree = proto_tree_add_subtree_format(game_tree,
tvb, offset, 4, ett_quakeworld_game_seq2, NULL, "Acknowledge Sequence: %u (%s)",
seq2, val_to_str(rel2,names_reliable,"%u"));
proto_tree_add_uint(seq2_tree, hf_quakeworld_game_seq2, tvb, offset, 4, seq2);
proto_tree_add_boolean(seq2_tree, hf_quakeworld_game_rel2, tvb, offset+3, 1, rel2);
}
offset += 4;
if (direction == DIR_C2S) {
/* client to server */
guint16 qport = tvb_get_letohs(tvb, offset);
if (game_tree) {
proto_tree_add_uint(game_tree, hf_quakeworld_game_qport, tvb, offset, 2, qport);
}
offset +=2;
}
/* all the rest is pure game data */
rest_length = tvb_reported_length(tvb) - offset;
if (rest_length) {
tvbuff_t *next_tvb = tvb_new_subset_remaining(tvb, offset);
proto_tree *c_tree;
if (direction == DIR_C2S) {
c_tree = proto_tree_add_subtree(game_tree, next_tvb,
0, -1, ett_quakeworld_game_clc, NULL, "Client Commands");
dissect_quakeworld_client_commands(next_tvb, pinfo, c_tree);
}
else {
c_tree = proto_tree_add_subtree(game_tree, next_tvb,
0, -1, ett_quakeworld_game_svc, NULL, "Server Commands");
dissect_quakeworld_server_commands(next_tvb, pinfo, c_tree);
}
}
}
static int
dissect_quakeworld(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_tree *quakeworld_tree = NULL;
int direction;
direction = (pinfo->destport == gbl_quakeworldServerPort) ?
DIR_C2S : DIR_S2C;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "QUAKEWORLD");
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(direction,
names_direction, "%u"));
if (tree) {
proto_item *quakeworld_item;
quakeworld_item = proto_tree_add_item(tree, proto_quakeworld,
tvb, 0, -1, ENC_NA);
quakeworld_tree = proto_item_add_subtree(quakeworld_item, ett_quakeworld);
proto_tree_add_uint_format(quakeworld_tree,
direction == DIR_S2C ?
hf_quakeworld_s2c :
hf_quakeworld_c2s,
tvb, 0, 0, 1,
"Direction: %s", val_to_str(direction, names_direction, "%u"));
}
if (tvb_get_ntohl(tvb, 0) == 0xffffffff) {
col_append_str(pinfo->cinfo, COL_INFO, " Connectionless");
proto_tree_add_uint_format(quakeworld_tree,
hf_quakeworld_connectionless,
tvb, 0, 0, 1,
"Type: Connectionless");
dissect_quakeworld_ConnectionlessPacket(
tvb, pinfo, quakeworld_tree, direction);
}
else {
col_append_str(pinfo->cinfo, COL_INFO, " Game");
proto_tree_add_uint_format(quakeworld_tree,
hf_quakeworld_game,
tvb, 0, 0, 1,
"Type: Game");
dissect_quakeworld_GamePacket(
tvb, pinfo, quakeworld_tree, direction);
}
return tvb_captured_length(tvb);
}
static void
apply_quakeworld_prefs(void)
{
/* Port preference used to determine client/server */
gbl_quakeworldServerPort = prefs_get_uint_value("quakeworld", "udp.port");
}
void
proto_register_quakeworld(void)
{
expert_module_t* expert_quakeworld;
static hf_register_info hf[] = {
{ &hf_quakeworld_c2s,
{ "Client to Server", "quakeworld.c2s",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_s2c,
{ "Server to Client", "quakeworld.s2c",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_connectionless,
{ "Connectionless", "quakeworld.connectionless",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_game,
{ "Game", "quakeworld.game",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_connectionless_marker,
{ "Marker", "quakeworld.connectionless.marker",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_connectionless_text,
{ "Text", "quakeworld.connectionless.text",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_connectionless_command,
{ "Command", "quakeworld.connectionless.command",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_connectionless_arguments,
{ "Arguments", "quakeworld.connectionless.arguments",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_connectionless_connect_version,
{ "Version", "quakeworld.connectionless.connect.version",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Protocol Version", HFILL }},
{ &hf_quakeworld_connectionless_connect_qport,
{ "QPort", "quakeworld.connectionless.connect.qport",
FT_UINT32, BASE_DEC, NULL, 0x0,
"QPort of the client", HFILL }},
{ &hf_quakeworld_connectionless_connect_challenge,
{ "Challenge", "quakeworld.connectionless.connect.challenge",
FT_INT32, BASE_DEC, NULL, 0x0,
"Challenge from the server", HFILL }},
{ &hf_quakeworld_connectionless_connect_infostring,
{ "Infostring", "quakeworld.connectionless.connect.infostring",
FT_STRING, BASE_NONE, NULL, 0x0,
"Infostring with additional variables", HFILL }},
{ &hf_quakeworld_connectionless_connect_infostring_key_value,
{ "Key/Value", "quakeworld.connectionless.connect.infostring.key_value",
FT_STRING, BASE_NONE, NULL, 0x0,
"Key and Value", HFILL }},
{ &hf_quakeworld_connectionless_connect_infostring_key,
{ "Key", "quakeworld.connectionless.connect.infostring.key",
FT_STRING, BASE_NONE, NULL, 0x0,
"Infostring Key", HFILL }},
{ &hf_quakeworld_connectionless_connect_infostring_value,
{ "Value", "quakeworld.connectionless.connect.infostring.value",
FT_STRING, BASE_NONE, NULL, 0x0,
"Infostring Value", HFILL }},
{ &hf_quakeworld_connectionless_rcon_password,
{ "Password", "quakeworld.connectionless.rcon.password",
FT_STRING, BASE_NONE, NULL, 0x0,
"Rcon Password", HFILL }},
{ &hf_quakeworld_connectionless_rcon_command,
{ "Command", "quakeworld.connectionless.rcon.command",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_quakeworld_game_seq1,
{ "Sequence Number", "quakeworld.game.seq1",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Sequence number of the current packet", HFILL }},
{ &hf_quakeworld_game_rel1,
{ "Reliable", "quakeworld.game.rel1",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Packet is reliable and may be retransmitted", HFILL }},
{ &hf_quakeworld_game_seq2,
{ "Sequence Number", "quakeworld.game.seq2",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Sequence number of the last received packet", HFILL }},
{ &hf_quakeworld_game_rel2,
{ "Reliable", "quakeworld.game.rel2",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Packet was reliable and may be retransmitted", HFILL }},
{ &hf_quakeworld_game_qport,
{ "QPort", "quakeworld.game.qport",
FT_UINT32, BASE_DEC, NULL, 0x0,
"QuakeWorld Client Port", HFILL }}
};
static gint *ett[] = {
&ett_quakeworld,
&ett_quakeworld_connectionless,
&ett_quakeworld_connectionless_text,
&ett_quakeworld_connectionless_arguments,
&ett_quakeworld_connectionless_connect_infostring,
&ett_quakeworld_connectionless_connect_infostring_key_value,
&ett_quakeworld_game,
&ett_quakeworld_game_seq1,
&ett_quakeworld_game_seq2,
&ett_quakeworld_game_clc,
&ett_quakeworld_game_svc
};
static ei_register_info ei[] = {
{ &ei_quakeworld_connectionless_command_invalid, { "quakeworld.connectionless.command.invalid",
PI_MALFORMED, PI_ERROR, "Invalid connectionless command", EXPFILL }}
};
proto_quakeworld = proto_register_protocol("QuakeWorld Network Protocol", "QUAKEWORLD", "quakeworld");
proto_register_field_array(proto_quakeworld, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
/* Register a configuration option for port */
prefs_register_protocol(proto_quakeworld, apply_quakeworld_prefs);
expert_quakeworld = expert_register_protocol(proto_quakeworld);
expert_register_field_array(expert_quakeworld, ei, array_length(ei));
}
void
proto_reg_handoff_quakeworld(void)
{
dissector_handle_t quakeworld_handle;
quakeworld_handle = create_dissector_handle(dissect_quakeworld, proto_quakeworld);
dissector_add_uint("udp.port", PORT_MASTER, quakeworld_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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