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packet-bzflag.c
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packet-bzflag.c
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/* packet-bzflag.c
* Routines for BZflag protocol packet disassembly
* By Steve Limkemann <[email protected]>
* Copyright 1998 Steve Limkemann
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <[email protected]>
* Copyright 1998 Gerald Combs
*
* 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 <stdio.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/dissectors/packet-tcp.h>
#include "packet-bzflag.h"
/*
* See
*
* http://www.dgtech.com/bzflag/sys/www/docs/html/
*/
void proto_register_bzflag (void);
void proto_reg_handoff_bzflag (void);
static int proto_bzflag = -1;
static int hf_bzflag_string = -1;
static int hf_bzfs_string = -1;
static int hf_bzfs_version = -1;
static int hf_len = -1;
static int hf_player = -1;
static int hf_src_player = -1;
static int hf_dst_player = -1;
static int hf_code = -1;
static int hf_flag_abbrev = -1;
static int hf_flag_quality = -1;
static int hf_flag_shot = -1;
static int hf_flag_name = -1;
static int hf_flag_help = -1;
static int hf_worldSize = -1;
static int hf_gameType = -1;
static int hf_SuperFlag = -1;
static int hf_Jumping = -1;
static int hf_Inertia = -1;
static int hf_Ricochet = -1;
static int hf_Shakable = -1;
static int hf_Antidote = -1;
static int hf_Handicap = -1;
static int hf_NoTeamKills = -1;
static int hf_playerSlot = -1;
static int hf_maxShots = -1;
static int hf_numFlags = -1;
static int hf_linearAcc = -1;
static int hf_angularAcc = -1;
static int hf_shakeTimeout = -1;
static int hf_shakeWins = -1;
static int hf_hash = -1;
static int hf_playerType = -1;
static int hf_teamColor = -1;
static int hf_callSign = -1;
static int hf_motto = -1;
static int hf_token = -1;
static int hf_version = -1;
static int hf_gameTime = -1;
static int hf_messageType = -1;
static int hf_messageContent = -1;
static int hf_count = -1;
static int hf_varName = -1;
static int hf_varValue = -1;
static int hf_teamNumber = -1;
static int hf_teamSize = -1;
static int hf_teamWon = -1;
static int hf_teamLost = -1;
static int hf_flagIndex = -1;
static int hf_flag_status = -1;
static int hf_flag_endurance = -1;
static int hf_x = -1;
static int hf_y = -1;
static int hf_z = -1;
static int hf_launch_x = -1;
static int hf_launch_y = -1;
static int hf_launch_z = -1;
static int hf_landing_x = -1;
static int hf_landing_y = -1;
static int hf_landing_z = -1;
static int hf_flightTime = -1;
static int hf_flightEnd = -1;
static int hf_flagSpeed = -1;
static int hf_timeStamp = -1;
static int hf_order = -1;
static int hf_alive = -1;
static int hf_paused = -1;
static int hf_exploding = -1;
static int hf_teleporting = -1;
static int hf_flagActive = -1;
static int hf_crossingWall = -1;
static int hf_falling = -1;
static int hf_onDriver = -1;
static int hf_userInputs = -1;
static int hf_jumpJets = -1;
static int hf_playSound = -1;
static int hf_x_short = -1;
static int hf_y_short = -1;
static int hf_z_short = -1;
static int hf_vx_short = -1;
static int hf_vy_short = -1;
static int hf_vz_short = -1;
static int hf_az_short = -1;
static int hf_vaz_short = -1;
static int hf_shotIndex = -1;
static int hf_shotEndReason = -1;
static int hf_victimPlayer = -1;
static int hf_killerPlayer = -1;
static int hf_killReason = -1;
static int hf_playerCount = -1;
static int hf_win = -1;
static int hf_loss = -1;
static int hf_tks = -1;
static int hf_posX = -1;
static int hf_posY = -1;
static int hf_posZ = -1;
static int hf_velX = -1;
static int hf_velY = -1;
static int hf_velZ = -1;
static int hf_DT = -1;
static int hf_lifeTime = -1;
static int hf_pingSeqNo = -1;
static int hf_isRegistered = -1;
static int hf_isVerified = -1;
static int hf_isAdmin = -1;
static int hf_from_tp = -1;
static int hf_to_tp = -1;
static int hf_undecoded = -1;
static gint ett_bzflag = -1;
static gint
decodePosition (tvbuff_t *tvb, gint offset, proto_tree *tree)
{
proto_tree_add_item(tree, hf_x, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_y, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_z, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
return offset;
}
static gint
decodeFlagInfo (tvbuff_t *tvb, gint offset, proto_tree *tree)
{
proto_tree_add_item(tree, hf_flagIndex, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_flag_abbrev, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_flag_status, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_flag_endurance, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
offset = decodePosition(tvb, offset, tree);
proto_tree_add_item(tree, hf_launch_x, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_launch_y, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_launch_z, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_landing_x, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_landing_y, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_landing_z, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_flightTime, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_flightEnd, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_flagSpeed, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
return offset;
}
static gint
decodeShotUpdate (tvbuff_t *tvb, gint offset, proto_tree *tree)
{
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_shotIndex, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_posX, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_posY, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_posZ, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_velX, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_velY, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_velZ, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_DT, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_teamColor, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
return offset;
}
static void
decodePackedMessages (tvbuff_t *tvb, packet_info *pinfo, gint offset,
proto_tree *tree)
{
guint16 plen;
guint16 code;
plen = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(tree, hf_len, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
code = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(tree, hf_code, tvb, offset, 2,
ENC_BIG_ENDIAN);
offset += 2;
if (code == 0x4e66) {
guint slen;
col_set_str(pinfo->cinfo, COL_INFO, "NearFlag");
offset = decodePosition(tvb, offset, tree);
slen = tvb_get_ntohl(tvb, offset);
proto_tree_add_item(tree, hf_flag_name, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4 + slen;
} else if (code == 0x6163) {
col_set_str(pinfo->cinfo, COL_INFO, "Accept");
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
} else if (code == 0x616c) {
col_set_str(pinfo->cinfo, COL_INFO, "Alive");
} else if (code == 0x6170) {
col_set_str(pinfo->cinfo, COL_INFO, "AddPlayer");
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_playerType, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_teamColor, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_win, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_loss, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_tks, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_callSign, tvb, offset, 32, ENC_BIG_ENDIAN);
offset += 32;
proto_tree_add_item(tree, hf_motto, tvb, offset, 128, ENC_BIG_ENDIAN);
offset += 128;
} else if (code == 0x6366) {
col_set_str(pinfo->cinfo, COL_INFO, "CaptureFlag");
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_flagIndex, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_teamColor, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
} else if (code == 0x6466) {
col_set_str(pinfo->cinfo, COL_INFO, "DropFlag");
if (plen == 12) {
offset = decodePosition(tvb, offset, tree);
} else {
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
offset = decodeFlagInfo(tvb, offset, tree);
}
} else if (code == 0x656e) {
col_set_str(pinfo->cinfo, COL_INFO, "Enter");
proto_tree_add_item(tree, hf_playerType, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_teamColor, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_callSign, tvb, offset, 32, ENC_BIG_ENDIAN);
offset += 32;
proto_tree_add_item(tree, hf_motto, tvb, offset, 128, ENC_BIG_ENDIAN);
offset += 128;
proto_tree_add_item(tree, hf_token, tvb, offset, 22, ENC_BIG_ENDIAN);
offset += 22;
proto_tree_add_item(tree, hf_version, tvb, offset, 60, ENC_BIG_ENDIAN);
offset += 60;
offset++;
} else if (code == 0x6674) {
guint slen;
col_set_str(pinfo->cinfo, COL_INFO, "FlagType");
proto_tree_add_item(tree, hf_flag_abbrev, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_flag_quality, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_flag_shot, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
slen = tvb_get_ntohl(tvb, offset);
proto_tree_add_item(tree, hf_flag_name, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4 + slen;
slen = tvb_get_ntohl(tvb, offset);
proto_tree_add_item(tree, hf_flag_help, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4 + slen;
} else if (code == 0x6675) {
guint16 count;
col_set_str(pinfo->cinfo, COL_INFO, "FlagUpdate");
count = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(tree, hf_count, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
for (; count > 0; count--) {
offset = decodeFlagInfo(tvb, offset, tree);
}
} else if (code == 0x6766) {
col_set_str(pinfo->cinfo, COL_INFO, "GrabFlag");
if (plen == 2) {
proto_tree_add_item(tree, hf_flagIndex, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
} else {
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
offset = decodeFlagInfo(tvb, offset, tree);
}
} else if (code == 0x676d) {
col_set_str(pinfo->cinfo, COL_INFO, "GMUpdate");
offset = decodeShotUpdate(tvb, offset, tree);
proto_tree_add_item(tree, hf_dst_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
} else if (code == 0x6773) {
col_set_str(pinfo->cinfo, COL_INFO, "GameSettings");
proto_tree_add_item(tree, hf_worldSize, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_gameType, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_SuperFlag, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_Jumping, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_Inertia, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_Ricochet, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_Shakable, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_Antidote, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_Handicap, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_NoTeamKills, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_playerSlot, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_maxShots, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_numFlags, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_linearAcc, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_angularAcc, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_shakeTimeout, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_shakeWins, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
// dummy zero Uint
offset += 4;
} else if (code == 0x6774) {
col_set_str(pinfo->cinfo, COL_INFO, "GameTime");
proto_tree_add_item(tree, hf_gameTime, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
} else if (code == 0x6b6c) {
col_set_str(pinfo->cinfo, COL_INFO, "Killed");
if (plen == 8) {
proto_tree_add_item(tree, hf_victimPlayer, tvb, offset, 1,
ENC_BIG_ENDIAN);
offset++;
}
proto_tree_add_item(tree, hf_killerPlayer, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_killReason, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_shotIndex, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_flag_abbrev, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
} else if (code == 0x6d67) {
int msgSize = plen;
col_set_str(pinfo->cinfo, COL_INFO, "Message");
proto_tree_add_item(tree, hf_src_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_dst_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_messageType, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
msgSize -= 3;
proto_tree_add_item(tree, hf_messageContent, tvb, offset, msgSize,
ENC_BIG_ENDIAN);
offset += msgSize;
} else if (code == 0x6e66) {
int i;
col_set_str(pinfo->cinfo, COL_INFO, "NegotiateFlags");
for (i = 0; i < plen / 2; i++) {
proto_tree_add_item(tree, hf_flag_abbrev, tvb, offset, 2,
ENC_BIG_ENDIAN);
offset += 2;
}
} else if (code == 0x6f66) {
col_set_str(pinfo->cinfo, COL_INFO, "UDPLinkRequest");
if (plen) {
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
} else if (code == 0x6f67) {
col_set_str(pinfo->cinfo, COL_INFO, "UDPLinkEstablished");
} else if (code == 0x7062) {
guint8 count;
col_set_str(pinfo->cinfo, COL_INFO, "PlayerInfo");
count = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_playerCount, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
for (; count > 0; count--) {
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_isRegistered, tvb, offset, 1,
ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_isVerified, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_isAdmin, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
} else if (code == 0x7069) {
col_set_str(pinfo->cinfo, COL_INFO, "LagPing");
proto_tree_add_item(tree, hf_pingSeqNo, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
} else if (code == 0x7073) {
col_set_str(pinfo->cinfo, COL_INFO, "PlayerUpdateSmall");
proto_tree_add_item(tree, hf_timeStamp, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_order, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_alive, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_paused, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_exploding, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_teleporting, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_flagActive, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_crossingWall, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_falling, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_onDriver, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_userInputs, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_jumpJets, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_playSound, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_x_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_y_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_z_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_vx_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_vy_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_vz_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_az_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_vaz_short, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
} else if (code == 0x7270) {
col_set_str(pinfo->cinfo, COL_INFO, "RemovePlayer");
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
} else if (code == 0x7362) {
col_set_str(pinfo->cinfo, COL_INFO, "ShotBegin");
proto_tree_add_item(tree, hf_timeStamp, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
offset = decodeShotUpdate(tvb, offset, tree);
proto_tree_add_item(tree, hf_flag_abbrev, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_lifeTime, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
} else if (code == 0x7363) {
guint8 count;
col_set_str(pinfo->cinfo, COL_INFO, "Score");
count = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_playerCount, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
for (; count > 0; count--) {
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_win, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_loss, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_tks, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
} else if (code == 0x7365) {
col_set_str(pinfo->cinfo, COL_INFO, "ShotEnd");
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_shotIndex, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_shotEndReason, tvb, offset, 2,
ENC_BIG_ENDIAN);
offset += 2;
} else if (code == 0x7376) {
int remaining;
guint8 stringLength;
remaining = plen;
col_set_str(pinfo->cinfo, COL_INFO, "SetVar");
proto_tree_add_item(tree, hf_count, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
remaining -= 2;
while (remaining > 0) {
stringLength = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_varName, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1 + stringLength;
remaining -= 1 + stringLength;
stringLength = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_varValue, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1 + stringLength;
remaining -= 1 + stringLength;
}
} else if (code == 0x7466) {
col_set_str(pinfo->cinfo, COL_INFO, "TransferFlag");
proto_tree_add_item(tree, hf_src_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_dst_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (plen > 2) {
offset = decodeFlagInfo(tvb, offset, tree);
}
} else if (code == 0x7470) {
col_set_str(pinfo->cinfo, COL_INFO, "Teleport");
proto_tree_add_item(tree, hf_player, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_from_tp, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_to_tp, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
} else if (code == 0x7475) {
guint8 teamNo;
guint8 i;
col_set_str(pinfo->cinfo, COL_INFO, "TeamUpdate");
teamNo = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_teamNumber, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
for (i = 0; i < teamNo; i++) {
proto_tree_add_item(tree, hf_teamColor, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_teamSize, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_teamWon, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_teamLost, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
} else if (code == 0x7768) {
col_set_str(pinfo->cinfo, COL_INFO, "WantWHash");
if (plen) {
proto_tree_add_item(tree, hf_hash, tvb, offset, plen, ENC_BIG_ENDIAN);
offset += plen;
}
} else if (code == 0x7773) {
col_set_str(pinfo->cinfo, COL_INFO, "WantSettings");
} else {
col_set_str(pinfo->cinfo, COL_INFO, "Not Decoded");
proto_tree_add_item(tree, hf_undecoded, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += plen;
}
}
static void
dissect_bzflag_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_tree *bzflag_tree;
proto_item *ti;
gint offset = 0;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BZflag");
ti = proto_tree_add_item(tree, proto_bzflag, tvb, 0, -1, ENC_NA);
bzflag_tree = proto_item_add_subtree(ti, ett_bzflag);
decodePackedMessages(tvb, pinfo, offset, bzflag_tree);
}
static int
dissect_bzflag_tcp_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
void* data _U_)
{
dissect_bzflag_common(tvb, pinfo, tree);
return tvb_reported_length(tvb);
}
static guint
get_bzflag_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset,
void *data _U_)
{
guint16 plen;
/*
* * Get the length of the BZFlag packet.
* */
plen = tvb_get_ntohs(tvb, offset) + 4;
return plen;
}
static int
dissect_BZFlag_tcp (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
void *data _U_)
{
proto_tree *bzflag_tree;
proto_item *ti;
gint len;
gint offset = 0;
len = tvb_reported_length(tvb);
if (len == 10) {
char str[6];
const char BZFlag_String[] ="BZFLAG";
tvb_memcpy(tvb, str, offset, 6);
if (!memcmp(str, BZFlag_String, 6)) {
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BZflag");
ti = proto_tree_add_item(tree, proto_bzflag, tvb, 0, -1, ENC_NA);
bzflag_tree = proto_item_add_subtree(ti, ett_bzflag);
col_set_str(pinfo->cinfo, COL_INFO, "BZFLAG Magic");
proto_tree_add_item(bzflag_tree, hf_bzflag_string, tvb, offset, 10, ENC_NA);
return len;
}
} else if (len == 9) {
char str[4];
const char BZFS_String[] ="BZFS";
tvb_memcpy(tvb, str, offset, 4);
if (!memcmp(str, BZFS_String, 4)) {
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BZflag");
ti = proto_tree_add_item(tree, proto_bzflag, tvb, 0, -1, ENC_NA);
bzflag_tree = proto_item_add_subtree(ti, ett_bzflag);
col_set_str(pinfo->cinfo, COL_INFO, "BZFS Version");
proto_tree_add_item(bzflag_tree, hf_bzfs_string, tvb, offset, 4, ENC_NA);
offset += 4;
proto_tree_add_item(bzflag_tree, hf_bzfs_version, tvb, offset, 4, ENC_NA);
offset += 4;
proto_tree_add_item(bzflag_tree, hf_player, tvb, offset, 1, ENC_NA);
return len;
}
}
tcp_dissect_pdus(tvb, pinfo, tree, TRUE, 2, get_bzflag_pdu_len,
dissect_bzflag_tcp_pdu, data);
return tvb_reported_length(tvb);
}
static int
dissect_BZFlag_udp (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
void *data _U_)
{
gint len;
len = tvb_reported_length(tvb);
dissect_bzflag_common(tvb, pinfo, tree);
return len;
}
void
gameTime (gchar *label, guint64 item)
{
time_t timep;
unsigned int micro;
struct tm *bt;
char timeLabel[ITEM_LABEL_LENGTH];
timep = item / 1000000;
micro = item % 1000000;
bt = gmtime(&timep);
strftime(timeLabel, ITEM_LABEL_LENGTH, "%c", bt);
snprintf(label, ITEM_LABEL_LENGTH, "%s %i usec", timeLabel, micro);
}
void
proto_register_bzflag (void)
{
static const value_string teamColor[] = {
{-2, "AutomaticTeam"},
{-1, "NoTeam"},
{0, "RogueTeam"},
{1, "RedTeam"},
{2, "GreenTeam"},
{3, "BlueTeam"},
{4, "PurpleTeam"},
{5, "ObserverTeam"},
{6, "RabbitTeam"},
{7, "HunterTeam"},
{0, NULL}
};
static const value_string shotEndReason[] = {
{0x0000, "GotKilledMsg"},
{0x0001, "GotShot"},
{0x0002, "GotRunOver"},
{0x0003, "GotCaptured"},
{0x0004, "GenocideEffect"},
{0x0005, "SelfDestruct"},
{0x0006, "WaterDeath"},
{0x0007, "LastReason"},
{0x0008, "DeathTouch/PhysicsDriverDeath"},
{0, NULL}
};
static const value_string messageType[] = {
{0x0000, "ChatMessage"},
{0x0001, "ActionMessage"},
{0, NULL}
};
static const value_string playerType[] = {
{0x0000, "TankPlayer"},
{0x0001, "ComputerPlayer"},
{0, NULL}
};
static const value_string flagEndurance[] = {
{0x0000, "FlagNormal"},
{0x0001, "FlagUnstable"},
{0x0002, "FlagSticky"},
{0, NULL}
};
static const value_string flagStatus[] = {
{0x0000, "FlagNoExist"},
{0x0001, "FlagOnGround"},
{0x0002, "FlagOnTank"},
{0x0003, "FlagInAir"},
{0x0004, "FlagComing"},
{0x0005, "FlagGoing"},
{0, NULL}
};
static const value_string gameType[] = {
{0x0000, "TeamFFA"},
{0x0001, "ClassicCTF"},
{0x0002, "OpenFFA"},
{0x0003, "RabbitChase"},
{0, NULL}
};
static const range_string player[] = {
{0x00, 0xfa, "NormalPlayer"},
{0xfb, 0xfb, "FirstTeam"},
{0xfc, 0xfc, "AdminPlayers"},
{0xfd, 0xfd, "ServerPlayer"},
{0xfe, 0xfe, "AllPlayers"},
{0xff, 0xff, "NoPlayer"},
{0, 0, NULL}
};
static const value_string codeName[] = {
{0x6163, "MsgAccept"},
{0x616c, "MsgAlive"},
{0x6170, "MsgAddPlayer"},
{0x6366, "MsgCaptureFlag"}, // 1482
{0x6466, "MsgDropFlag"},
{0x656e, "MsgEnter"},
{0x6674, "MsgFlagType"},
{0x6675, "MsgFlagUpdate"},
{0x6766, "MsgGrabFlag"},
{0x676d, "MsgGMUpdate"},
{0x6773, "MsgGameSettings"},
{0x6774, "MsgGameTime"},
{0x6b6c, "MsgKilled"},
{0x6d67, "MsgMessage"},
{0x6e66, "MsgNegotiateFlags"},
{0x6f66, "MsgUDPLinkRequest"},
{0x6f67, "MsgUDPLinkEstablished"},
{0x7062, "MsgPlayerInfo"},
{0x7069, "MsgLagPing"},
{0x7073, "MsgPlayerUpdateSmall"},
{0x7270, "MsgRemovePlayer"},
{0x7362, "MsgShotBegin"},
{0x7363, "MsgScore"},
{0x7365, "MsgShotEnd"},
{0x7376, "MsgSetVar"},
{0x7466, "MsgTransferFlag"},
{0x7470, "MsgTeleport"},
{0x7475, "MsgTeamUpdate"},
{0x7768, "MsgWantWHash"},
{0x7773, "MsgWantSettings"},
{0, NULL}
};
static const true_false_string good_bad = {
"Bad Flag",
"Good Flag"
};
static const true_false_string specialShot = {
"Special Shot",
"Normal Shot"
};
static hf_register_info hf[] = {
{&hf_bzflag_string,
{"BZFLAG String", "bzflag.bzflagString", FT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_bzfs_string,
{"BZFS String", "bzflag.bzfsString", FT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_bzfs_version,
{"BZFS Version", "bzflag.bzfsVersion", FT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_len,
{"Len", "bzflag.len", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}},
{&hf_code,
{"Code", "bzflag.code", FT_UINT16, BASE_HEX, codeName, 0x0, NULL,
HFILL}},
{&hf_player,
{"PlayerId", "bzflag.player", FT_UINT8, BASE_DEC | BASE_RANGE_STRING,
RVALS(player), 0x0, NULL, HFILL}},
{&hf_src_player,
{"SrcPlayerId", "bzflag.src.player", FT_UINT8,
BASE_DEC | BASE_RANGE_STRING, RVALS(player), 0x0, NULL, HFILL}},
{&hf_dst_player,
{"DstPlayerId", "bzflag.dst.player", FT_UINT8,
BASE_DEC | BASE_RANGE_STRING, RVALS(player), 0x0, NULL, HFILL}},
{&hf_flag_abbrev,
{"Flag Abbrev", "bzflag.flag.abbrev", FT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_flag_quality,
{"Flag Quality", "bzflag.flag.quality", FT_BOOLEAN, BASE_NONE,
TFS(&good_bad), 0x0, NULL, HFILL}},
{&hf_flag_shot,
{"Flag Shot", "bzflag.flag.shot", FT_BOOLEAN, BASE_NONE,
TFS(&specialShot), 0x0, NULL, HFILL}},
{&hf_flag_name,
{"Flag Name", "bzflag.flag.name", FT_UINT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_flag_help,
{"Flag Help", "bzflag.flag.help", FT_UINT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_worldSize,
{"World Size", "bzflag.world.size", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL,
HFILL}},
{&hf_gameType,
{"Game Type", "bzflag.world.gameType", FT_UINT16, BASE_DEC, gameType,
0x0, NULL, HFILL}},
{&hf_SuperFlag,
{"SuperFlag", "bzflag.world.superflag", FT_BOOLEAN, 16, NULL, 0x0002,
NULL, HFILL}},
{&hf_Jumping,
{"Jumping", "bzflag.world.jumping", FT_BOOLEAN, 16, NULL, 0x0008, NULL,
HFILL}},
{&hf_Inertia,
{"Inertia", "bzflag.world.inertia", FT_BOOLEAN, 16, NULL, 0x0010, NULL,
HFILL}},
{&hf_Ricochet,
{"Ricochet", "bzflag.world.ricochet", FT_BOOLEAN, 16, NULL, 0x0020, NULL,
HFILL}},
{&hf_Shakable,
{"Shakable", "bzflag.world.shakable", FT_BOOLEAN, 16, NULL, 0x0040, NULL,
HFILL}},
{&hf_Antidote,
{"Antidote", "bzflag.world.antidote", FT_BOOLEAN, 16, NULL, 0x0080, NULL,
HFILL}},
{&hf_Handicap,
{"Handicap", "bzflag.world.handicap", FT_BOOLEAN, 16, NULL, 0x0100, NULL,
HFILL}},
{&hf_NoTeamKills,
{"NoTeamKill", "bzflag.world.noteamkills", FT_BOOLEAN, 16, NULL, 0x0400,
NULL, HFILL}},
{&hf_playerSlot,
{"PlayerSlot", "bzflag.world.playerSlot", FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{&hf_maxShots,
{"MaxShots", "bzflag.world.maxShots", FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{&hf_numFlags,
{"NumFlags", "bzflag.world.numFlags", FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{&hf_linearAcc,
{"LinearAcc", "bzflag.world.linAcc", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_angularAcc,
{"AngularAcc", "bzflag.world.angAcc", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_shakeTimeout,
{"ShakeTimeout", "bzflag.world.shakeTimeout", FT_UINT16, BASE_DEC, NULL,
0x0, NULL, HFILL}},
{&hf_shakeWins,
{"ShakeWins", "bzflag.world.shakeWins", FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{&hf_hash,
{"WorldHash", "bzflag.world.hash", FT_STRING, STR_ASCII, NULL, 0x0, NULL,
HFILL}},
{&hf_playerType,
{"PlayerType", "bzflag.player.type", FT_UINT16, BASE_DEC, playerType,
0x0, NULL, HFILL}},
{&hf_teamColor,
{"TeamColor", "bzflag.teamColor", FT_INT16, BASE_DEC, teamColor, 0x0,
NULL, HFILL}},
{&hf_callSign,
{"CallSign", "bzflag.player.callsign", FT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_motto,
{"Motto", "bzflag.player.motto", FT_STRING, STR_ASCII, NULL, 0x0, NULL,
HFILL}},
{&hf_token,
{"Token", "bzflag.player.token", FT_STRING, STR_ASCII, NULL, 0x0, NULL,
HFILL}},
{&hf_version,
{"Version", "bzflag.player.version", FT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_gameTime,
{"GameTime", "bzflag.server.time", FT_UINT64, BASE_CUSTOM,
CF_FUNC(gameTime), 0x0, NULL, HFILL}},
{&hf_messageType,
{"MessageType", "bzflag.message.type", FT_UINT8, BASE_DEC, messageType,
0x0, NULL, HFILL}},
{&hf_messageContent,
{"MessageContent", "bzflag.message.content", FT_STRING, STR_ASCII, NULL,
0x0, NULL, HFILL}},
{&hf_count,
{"Count", "bzflag.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}},
{&hf_varName,
{"VarName", "bzflag.var.name", FT_UINT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_varValue,
{"VarValue", "bzflag.var.value", FT_UINT_STRING, STR_ASCII, NULL, 0x0,
NULL, HFILL}},
{&hf_teamNumber,
{"NumberOfTeams", "bzflag.team.number", FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{&hf_teamSize,
{"SizeOfTeam", "bzflag.team.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL,
HFILL}},
{&hf_teamWon,
{"TeamWon", "bzflag.team.won", FT_UINT16, BASE_DEC, NULL, 0x0, NULL,
HFILL}},
{&hf_teamLost,
{"TeamLost", "bzflag.team.lost", FT_UINT16, BASE_DEC, NULL, 0x0, NULL,
HFILL}},
{&hf_flagIndex,
{"FlagIndex", "bzflag.flag.index", FT_UINT16, BASE_DEC, NULL, 0x0, NULL,
HFILL}},
{&hf_flag_status,
{"Flag Status", "bzflag.flag.status", FT_UINT16, BASE_DEC, flagStatus,
0x0, NULL, HFILL}},
{&hf_flag_endurance,
{"Flag Endurance", "bzflag.flag.endurance", FT_UINT16, BASE_DEC,
flagEndurance, 0x0, NULL, HFILL}},
{&hf_x,
{"X Position", "bzflag.x", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{&hf_y,
{"Y Position", "bzflag.y", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{&hf_z,
{"Z Position", "bzflag.z", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{&hf_launch_x,
{"X Launch Position", "bzflag.launch.x", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_launch_y,
{"Y Launch Position", "bzflag.launch.y", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_launch_z,
{"Z Landing Position", "bzflag.land.z", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_landing_x,
{"X Landing Position", "bzflag.land.x", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_landing_y,
{"Y Landing Position", "bzflag.land.y", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_landing_z,
{"Z Launch Position", "bzflag.launch.z", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_flightTime,
{"Flight Time", "bzflag.flag.flight.time", FT_FLOAT, BASE_NONE, NULL,
0x0, NULL, HFILL}},
{&hf_flightEnd,
{"Flight End", "bzflag.flag.flight.end", FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL}},
{&hf_flagSpeed,