wireshark/epan/dissectors/packet-quake.c
Michael Mann 2eb7b05b8c Convert most UDP dissectors to use "auto" preferences.
Similar to the "tcp.port" changes in I99604f95d426ad345f4b494598d94178b886eb67,
convert dissectors that use "udp.port".

More cleanup done on dissectors that use both TCP and UDP dissector
tables, so that less preference callbacks exist.

Change-Id: If07be9b9e850c244336a7069599cd554ce312dd3
Reviewed-on: https://code.wireshark.org/review/18120
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
2016-10-13 02:51:18 +00:00

608 lines
18 KiB
C

/* packet-quake.c
* Routines for Quake 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-tftp.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 <epan/packet.h>
#include <epan/conversation.h>
void proto_register_quake(void);
static int proto_quake = -1;
static int hf_quake_header_flags = -1;
static int hf_quake_header_flags_data = -1;
static int hf_quake_header_flags_ack = -1;
static int hf_quake_header_flags_no_ack = -1;
static int hf_quake_header_flags_endmsg = -1;
static int hf_quake_header_flags_unreliable = -1;
static int hf_quake_header_flags_control = -1;
static int hf_quake_header_length = -1;
static int hf_quake_header_sequence = -1;
static int hf_quake_control_command = -1;
static int hf_quake_CCREQ_CONNECT_game = -1;
static int hf_quake_CCREQ_CONNECT_version = -1;
static int hf_quake_CCREQ_SERVER_INFO_game = -1;
static int hf_quake_CCREQ_SERVER_INFO_version = -1;
static int hf_quake_CCREQ_PLAYER_INFO_player = -1;
static int hf_quake_CCREQ_RULE_INFO_lastrule = -1;
static int hf_quake_CCREP_ACCEPT_port = -1;
static int hf_quake_CCREP_REJECT_reason = -1;
static int hf_quake_CCREP_SERVER_INFO_address = -1;
static int hf_quake_CCREP_SERVER_INFO_server = -1;
static int hf_quake_CCREP_SERVER_INFO_map = -1;
static int hf_quake_CCREP_SERVER_INFO_num_player = -1;
static int hf_quake_CCREP_SERVER_INFO_max_player = -1;
static int hf_quake_CCREP_PLAYER_INFO_name = -1;
static int hf_quake_CCREP_PLAYER_INFO_colors = -1;
static int hf_quake_CCREP_PLAYER_INFO_colors_shirt = -1;
static int hf_quake_CCREP_PLAYER_INFO_colors_pants = -1;
static int hf_quake_CCREP_PLAYER_INFO_frags = -1;
static int hf_quake_CCREP_PLAYER_INFO_connect_time = -1;
static int hf_quake_CCREP_PLAYER_INFO_address = -1;
static int hf_quake_CCREP_RULE_INFO_rule = -1;
static int hf_quake_CCREP_RULE_INFO_value = -1;
static gint ett_quake = -1;
static gint ett_quake_control = -1;
static gint ett_quake_control_colors = -1;
static gint ett_quake_flags = -1;
static dissector_handle_t quake_handle;
/* I took these names directly out of the Q1 source. */
#define NET_HEADERSIZE 8
#define DEFAULTnet_hostport 26000
#define NETFLAG_DATA 0x0001
#define NETFLAG_ACK 0x0002
#define NETFLAG_NAK 0x0004
#define NETFLAG_EOM 0x0008
#define NETFLAG_UNRELIABLE 0x0010
#define NETFLAG_CTL 0x8000
#define CCREQ_CONNECT 0x01
#define CCREQ_SERVER_INFO 0x02
#define CCREQ_PLAYER_INFO 0x03
#define CCREQ_RULE_INFO 0x04
#define CCREP_ACCEPT 0x81
#define CCREP_REJECT 0x82
#define CCREP_SERVER_INFO 0x83
#define CCREP_PLAYER_INFO 0x84
#define CCREP_RULE_INFO 0x85
static const value_string names_control_command[] = {
{ CCREQ_CONNECT, "connect" },
{ CCREQ_SERVER_INFO, "server_info" },
{ CCREQ_PLAYER_INFO, "player_info" },
{ CCREQ_RULE_INFO, "rule_info" },
{ CCREP_ACCEPT, "accept" },
{ CCREP_REJECT, "reject" },
{ CCREP_SERVER_INFO, "server_info" },
{ CCREP_PLAYER_INFO, "player_info" },
{ CCREP_RULE_INFO, "rule_info" },
{ 0, NULL }
};
#define CCREQ 0x00
#define CCREP 0x80
#define QUAKE_MAXSTRING 0x800
static const value_string names_control_direction[] = {
{ CCREQ, "Request" },
{ CCREP, "Reply" },
{ 0, NULL }
};
static const value_string names_colors[] = {
{ 0, "White" },
{ 1, "Brown" },
{ 2, "Lavender" },
{ 3, "Khaki" },
{ 4, "Red" },
{ 5, "Lt Brown" },
{ 6, "Peach" },
{ 7, "Lt Peach" },
{ 8, "Purple" },
{ 9, "Dk Purple" },
{ 10, "Tan" },
{ 11, "Green" },
{ 12, "Yellow" },
{ 13, "Blue" },
{ 14, "Blue" },
{ 15, "Blue" },
{ 0, NULL }
};
static void
dissect_quake_CCREQ_CONNECT
(tvbuff_t *tvb, proto_tree *tree)
{
gint offset = 0;
gint item_len;
proto_tree_add_item_ret_length(tree, hf_quake_CCREQ_CONNECT_game,
tvb, offset, -1, ENC_ASCII|ENC_NA, &item_len);
offset += item_len;
proto_tree_add_item(tree, hf_quake_CCREQ_CONNECT_version,
tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
static void
dissect_quake_CCREQ_SERVER_INFO
(tvbuff_t *tvb, proto_tree *tree)
{
gint offset = 0;
gint item_len;
proto_tree_add_item_ret_length(tree, hf_quake_CCREQ_SERVER_INFO_game,
tvb, offset, -1, ENC_ASCII|ENC_NA, &item_len);
offset += item_len;
proto_tree_add_item(tree, hf_quake_CCREQ_SERVER_INFO_version,
tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
static void
dissect_quake_CCREQ_PLAYER_INFO
(tvbuff_t *tvb, proto_tree *tree)
{
proto_tree_add_item(tree, hf_quake_CCREQ_PLAYER_INFO_player,
tvb, 0, 1, ENC_LITTLE_ENDIAN);
}
static void
dissect_quake_CCREQ_RULE_INFO
(tvbuff_t *tvb, proto_tree *tree)
{
proto_tree_add_item(tree, hf_quake_CCREQ_RULE_INFO_lastrule,
tvb, 0, -1, ENC_ASCII|ENC_NA);
}
static void
dissect_quake_CCREP_ACCEPT
(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint32 port;
conversation_t *c;
port = tvb_get_letohl(tvb, 0);
c = find_or_create_conversation(pinfo);
conversation_set_dissector(c, quake_handle);
proto_tree_add_uint(tree, hf_quake_CCREP_ACCEPT_port,
tvb, 0, 4, port);
}
static void
dissect_quake_CCREP_REJECT
(tvbuff_t *tvb, proto_tree *tree)
{
proto_tree_add_item(tree, hf_quake_CCREP_REJECT_reason,
tvb, 0, -1, ENC_ASCII|ENC_NA);
}
static void
dissect_quake_CCREP_SERVER_INFO
(tvbuff_t *tvb, proto_tree *tree)
{
gint offset = 0;
gint item_len;
proto_tree_add_item_ret_length(tree,
hf_quake_CCREP_SERVER_INFO_address, tvb, offset, -1,
ENC_ASCII|ENC_NA, &item_len);
offset += item_len;
proto_tree_add_item_ret_length(tree,
hf_quake_CCREP_SERVER_INFO_server, tvb, offset, -1,
ENC_ASCII|ENC_NA, &item_len);
offset += item_len;
proto_tree_add_item_ret_length(tree,
hf_quake_CCREP_SERVER_INFO_map, tvb, offset, -1,
ENC_ASCII|ENC_NA, &item_len);
offset += item_len;
proto_tree_add_item(tree, hf_quake_CCREP_SERVER_INFO_num_player,
tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_quake_CCREP_SERVER_INFO_max_player,
tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_quake_CCREQ_SERVER_INFO_version,
tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
static void
dissect_quake_CCREP_PLAYER_INFO
(tvbuff_t *tvb, proto_tree *tree)
{
gint offset = 0;
guint32 colors;
guint32 color_shirt;
guint32 color_pants;
proto_item *colors_item;
proto_tree *colors_tree;
gint item_len;
proto_tree_add_item(tree, hf_quake_CCREQ_PLAYER_INFO_player,
tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item_ret_length(tree, hf_quake_CCREP_PLAYER_INFO_name,
tvb, offset, -1, ENC_ASCII|ENC_NA, &item_len);
offset += item_len;
colors = tvb_get_letohl(tvb, offset + 0);
color_shirt = (colors >> 4) & 0x0f;
color_pants = (colors ) & 0x0f;
colors_item = proto_tree_add_uint(tree,
hf_quake_CCREP_PLAYER_INFO_colors,
tvb, offset, 4, colors);
colors_tree = proto_item_add_subtree(colors_item,
ett_quake_control_colors);
proto_tree_add_uint(colors_tree,
hf_quake_CCREP_PLAYER_INFO_colors_shirt,
tvb, offset, 1, color_shirt);
proto_tree_add_uint(colors_tree,
hf_quake_CCREP_PLAYER_INFO_colors_pants,
tvb, offset, 1, color_pants);
offset += 4;
proto_tree_add_item(tree, hf_quake_CCREP_PLAYER_INFO_frags,
tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_quake_CCREP_PLAYER_INFO_connect_time,
tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_quake_CCREP_PLAYER_INFO_address,
tvb, offset, -1, ENC_ASCII|ENC_NA);
}
static void
dissect_quake_CCREP_RULE_INFO
(tvbuff_t *tvb, proto_tree *tree)
{
gint offset = 0;
gint item_len;
if (tvb_reported_length(tvb) == 0) return;
proto_tree_add_item_ret_length(tree, hf_quake_CCREP_RULE_INFO_rule,
tvb, offset, -1, ENC_ASCII|ENC_NA, &item_len);
offset += item_len;
proto_tree_add_item(tree, hf_quake_CCREP_RULE_INFO_value,
tvb, offset, -1, ENC_ASCII|ENC_NA);
}
static void
dissect_quake_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint8 command;
int direction;
proto_tree *control_tree;
tvbuff_t *next_tvb;
command = tvb_get_guint8(tvb, 0);
direction = (command & 0x80) ? CCREP : CCREQ;
col_add_fstr(pinfo->cinfo, COL_INFO, "%s %s",
val_to_str(command,names_control_command, "%u"),
val_to_str(direction,names_control_direction,"%u"));
control_tree = proto_tree_add_subtree_format(tree, tvb,
0, -1, ett_quake_control, NULL, "Control %s: %s",
val_to_str(direction, names_control_direction, "%u"),
val_to_str(command, names_control_command, "%u"));
proto_tree_add_uint(control_tree, hf_quake_control_command,
tvb, 0, 1, command);
next_tvb = tvb_new_subset_remaining(tvb, 1);
switch (command) {
case CCREQ_CONNECT:
dissect_quake_CCREQ_CONNECT
(next_tvb, control_tree);
break;
case CCREQ_SERVER_INFO:
dissect_quake_CCREQ_SERVER_INFO
(next_tvb, control_tree);
break;
case CCREQ_PLAYER_INFO:
dissect_quake_CCREQ_PLAYER_INFO
(next_tvb, control_tree);
break;
case CCREQ_RULE_INFO:
dissect_quake_CCREQ_RULE_INFO
(next_tvb, control_tree);
break;
case CCREP_ACCEPT:
dissect_quake_CCREP_ACCEPT
(next_tvb, pinfo, control_tree);
break;
case CCREP_REJECT:
dissect_quake_CCREP_REJECT
(next_tvb, control_tree);
break;
case CCREP_SERVER_INFO:
dissect_quake_CCREP_SERVER_INFO
(next_tvb, control_tree);
break;
case CCREP_PLAYER_INFO:
dissect_quake_CCREP_PLAYER_INFO
(next_tvb, control_tree);
break;
case CCREP_RULE_INFO:
dissect_quake_CCREP_RULE_INFO
(next_tvb, control_tree);
break;
default:
call_data_dissector(next_tvb, pinfo, control_tree);
break;
}
}
static int
dissect_quake(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_tree *quake_tree;
proto_item *quake_item;
guint16 flags;
proto_item *flags_item;
proto_tree *flags_tree;
guint32 sequence = 0;
tvbuff_t *next_tvb;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "QUAKE");
col_clear(pinfo->cinfo, COL_INFO);
flags = tvb_get_ntohs(tvb, 2);
quake_item = proto_tree_add_item(tree, proto_quake, tvb, 0, -1, ENC_NA);
quake_tree = proto_item_add_subtree(quake_item, ett_quake);
flags_item = proto_tree_add_item(quake_tree, hf_quake_header_flags,
tvb, 2, 2, ENC_BIG_ENDIAN);
flags_tree = proto_item_add_subtree(flags_item, ett_quake_flags);
proto_tree_add_item(flags_tree, hf_quake_header_flags_data,
tvb, 2, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_quake_header_flags_ack,
tvb, 2, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_quake_header_flags_no_ack,
tvb, 2, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_quake_header_flags_endmsg,
tvb, 2, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_quake_header_flags_unreliable,
tvb, 2, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_quake_header_flags_control,
tvb, 2, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(quake_tree, hf_quake_header_length, tvb, 0, 2, ENC_BIG_ENDIAN);
if (flags == NETFLAG_CTL) {
next_tvb = tvb_new_subset_remaining(tvb, 4);
dissect_quake_control(next_tvb, pinfo, quake_tree);
return tvb_captured_length(tvb);
}
sequence = tvb_get_ntohl(tvb, 4);
col_add_fstr(pinfo->cinfo, COL_INFO, "seq 0x%x", sequence);
proto_tree_add_uint(quake_tree, hf_quake_header_sequence,
tvb, 4, 4, sequence);
next_tvb = tvb_new_subset_remaining(tvb, 8);
call_data_dissector(next_tvb, pinfo, quake_tree);
return tvb_captured_length(tvb);
}
void proto_reg_handoff_quake(void);
void
proto_register_quake(void)
{
static hf_register_info hf[] = {
{ &hf_quake_header_flags,
{ "Flags", "quake.header.flags",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_quake_header_flags_data,
{ "Data", "quake.header.flags.data",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_DATA,
NULL, HFILL }},
{ &hf_quake_header_flags_ack,
{ "Acknowledgment", "quake.header.flags.ack",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_ACK,
NULL, HFILL }},
{ &hf_quake_header_flags_no_ack,
{ "No Acknowledgment", "quake.header.flags.no_ack",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_NAK,
NULL, HFILL }},
{ &hf_quake_header_flags_endmsg,
{ "End Of Message", "quake.header.flags.endmsg",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_EOM,
NULL, HFILL }},
{ &hf_quake_header_flags_unreliable,
{ "Unreliable", "quake.header.flags.unreliable",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_UNRELIABLE,
NULL, HFILL }},
{ &hf_quake_header_flags_control,
{ "Control", "quake.header.flags.control",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), NETFLAG_CTL,
NULL, HFILL }},
{ &hf_quake_header_length,
{ "Length", "quake.header.length",
FT_UINT16, BASE_DEC, NULL, 0x0,
"full data length", HFILL }},
{ &hf_quake_header_sequence,
{ "Sequence", "quake.header.sequence",
FT_UINT32, BASE_HEX, NULL, 0x0,
"Sequence Number", HFILL }},
{ &hf_quake_control_command,
{ "Command", "quake.control.command",
FT_UINT8, BASE_HEX, VALS(names_control_command), 0x0,
"Control Command", HFILL }},
{ &hf_quake_CCREQ_CONNECT_game,
{ "Game", "quake.control.connect.game",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Game Name", HFILL }},
{ &hf_quake_CCREQ_CONNECT_version,
{ "Version", "quake.control.connect.version",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Game Protocol Version Number", HFILL }},
{ &hf_quake_CCREQ_SERVER_INFO_game,
{ "Game", "quake.control.server_info.game",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Game Name", HFILL }},
{ &hf_quake_CCREQ_SERVER_INFO_version,
{ "Version", "quake.control.server_info.version",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Game Protocol Version Number", HFILL }},
{ &hf_quake_CCREQ_PLAYER_INFO_player,
{ "Player", "quake.control.player_info.player",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_quake_CCREQ_RULE_INFO_lastrule,
{ "Last Rule", "quake.control.rule_info.lastrule",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Last Rule Name", HFILL }},
{ &hf_quake_CCREP_ACCEPT_port,
{ "Port", "quake.control.accept.port",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Game Data Port", HFILL }},
{ &hf_quake_CCREP_REJECT_reason,
{ "Reason", "quake.control.reject.reason",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Reject Reason", HFILL }},
{ &hf_quake_CCREP_SERVER_INFO_address,
{ "Address", "quake.control.server_info.address",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Server Address", HFILL }},
{ &hf_quake_CCREP_SERVER_INFO_server,
{ "Server", "quake.control.server_info.server",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Server Name", HFILL }},
{ &hf_quake_CCREP_SERVER_INFO_map,
{ "Map", "quake.control.server_info.map",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Map Name", HFILL }},
{ &hf_quake_CCREP_SERVER_INFO_num_player,
{ "Number of Players", "quake.control.server_info.num_player",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Current Number of Players", HFILL }},
{ &hf_quake_CCREP_SERVER_INFO_max_player,
{ "Maximal Number of Players", "quake.control.server_info.max_player",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_quake_CCREP_PLAYER_INFO_name,
{ "Name", "quake.control.player_info.name",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Player Name", HFILL }},
{ &hf_quake_CCREP_PLAYER_INFO_colors,
{ "Colors", "quake.control.player_info.colors",
FT_UINT32, BASE_HEX, NULL, 0x0,
"Player Colors", HFILL }},
{ &hf_quake_CCREP_PLAYER_INFO_colors_shirt,
{ "Shirt", "quake.control.player_info.colors.shirt",
FT_UINT8, BASE_DEC, VALS(names_colors), 0x0,
"Shirt Color", HFILL }},
{ &hf_quake_CCREP_PLAYER_INFO_colors_pants,
{ "Pants", "quake.control.player_info.colors.pants",
FT_UINT8, BASE_DEC, VALS(names_colors), 0x0,
"Pants Color", HFILL }},
{ &hf_quake_CCREP_PLAYER_INFO_frags,
{ "Frags", "quake.control.player_info.frags",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Player Frags", HFILL }},
{ &hf_quake_CCREP_PLAYER_INFO_connect_time,
{ "Connect Time", "quake.control.player_info.connect_time",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Player Connect Time", HFILL }},
{ &hf_quake_CCREP_PLAYER_INFO_address,
{ "Address", "quake.control.player_info.address",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Player Address", HFILL }},
{ &hf_quake_CCREP_RULE_INFO_rule,
{ "Rule", "quake.control.rule_info.rule",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Rule Name", HFILL }},
{ &hf_quake_CCREP_RULE_INFO_value,
{ "Value", "quake.control.rule_info.value",
FT_STRINGZ, BASE_NONE, NULL, 0x0,
"Rule Value", HFILL }},
};
static gint *ett[] = {
&ett_quake,
&ett_quake_control,
&ett_quake_control_colors,
&ett_quake_flags,
};
proto_quake = proto_register_protocol("Quake Network Protocol", "QUAKE", "quake");
proto_register_field_array(proto_quake, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_quake(void)
{
quake_handle = create_dissector_handle(dissect_quake, proto_quake);
dissector_add_uint_with_preference("udp.port", DEFAULTnet_hostport, quake_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:
*/