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wireshark/epan/dissectors/packet-tibia.c
John Thacker 203cd2cba9 prefs: More cleanup, auto prefs 
Remove callback function from pref registrations for dissectors that
don't need a callback. In other dissectors, move registration that
only needs to be done once inside the check for initialization,
avoiding some console messages when preferences are changed
("Duplicate dissectors (anonymous) and (anonymous) for protocol...")
and the like.

Add a couple auto preferences for dissectors missed in previous waves.

Ping #14319
2022-08-09 06:21:05 +00:00

2752 lines
104 KiB
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/* packet-tibia.c
* Routines for Tibia/OTServ login and game protocol dissection
*
* Copyright 2017, Ahmad Fatoum <ahmad[AT]a3f.at>
*
* A dissector for:
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
/* Tibia (https://tibia.com) is a Massively Multiplayer Online Role-Playing
* Game (MMORPG) by Cipsoft GmbH.
*
* Three official clients exist: The current Qt-based 11.0+ client,
* the old C++ client used from Tibia 7.0 till 10.99 and the Flash client.
* The latter two are being phased out. They use the same protocol,
* except that the session key for the Flash client is transported alongside
* the character list over HTTPS. It's possible this is done in the same manner
* as in the native client from 10.74 up. We don't support the Flash client.
*
* The dissector supports Tibia versions from 7.0 (2001) till
* 11.00 (2016-10-12). Tibia has an active open source server emulator
* community (OTServ) that still makes use of older versions and surpasses
* the official servers in popularity, therefore compatibility with older
* protocol iterations should be maintained.
*
* Transport is over TCP, with recent versions encrypting player interaction
* with XTEA. Authentication and key exchange is done with a hard-coded
* RSA public key in the client.
*
* Two protocols are dissected: The Tibia login protocol and the Tibia game
* protocol. Traditionally, login servers were stateless and only responsible
* for providing the addresses of the game servers alongside the character
* list upon successful authentication. Then a new authentication request
* (this time with character selection) is sent to the game server.
* That way, a client who knows the game server address can very well skip
* the login server entirely. Starting with 10.61, this is no longer possible,
* as the login server provides a session key that needs to be sent to the
* game server.
*
* Starting with Tibia 7.61, login server requests can't be reliably
* differentiated from game server requests. Therefore we apply some heuristics
* to classify packets.
*
* Starting with Tibia 11.01, a web service takes the role of the login server.
* Starting with Tibia 11.11, the Adler32 checksum was replaced by a 32-bit
* sequence number. The most significant bit indicates whether the packet was
* DEFLATE-compressed. These features are not yet supported.
*
* Packets from and to the game server contain commands. Commands are
* identified by the first octet and are variable in length. The dissector has
* most command names hard-coded. However, a complete implementation of the
* game protocol is unlikely.
*
* The RSA private key usually used by OTServ is hard-coded in. Server
* administrators may add their own private key in PEM or PKCS#12 format over
* an UAT. For servers where the private key is indeed private (like
* for official servers), the symmetric XTEA key (retrievable by memory
* peeking or MitM) may be provided to the dissector via UAT.
*
* Unsurprisingly, no official specification of the protocol exist, following
* resources have been written by the community:
*
* - OTServ: Community effort to replicate a Tibia Server.
* - Outcast: A Tibia client implementation of the game protocol as of 2006.
* Comes with a PDF spec written by Khaos
* - TibiaAPI: Bot framework, containing a listing of commands as of 2009
* - TFS: OTServ-Fork which is kept up-to-date with most of the official protocol
* - otclient: Open Source implementation of an up-to-date Tibia client
*
* An official slide set by Cipsoft detailing the architecture of Tibia
* from Game Developers Conference Europe 2011 is also available:
* http://www.gdcvault.com/play/1014908/Inside-Tibia-The-Technical-Infrastructure
*
* The login protocol, as implemented here, has been inferred from network
* footage and game client execution traces and was written from scratch.
* The listing of game protocol commands were taken from TibiaAPI and Khaos' spec
* No code of Cipsoft GmbH was used.
*
* Tibia is a registered trademark of Cipsoft GmbH.
*/
#include "config.h"
#include <epan/packet.h>
#include "packet-tcp.h"
#include <wsutil/adler32.h>
#include <epan/address.h>
#include <epan/to_str.h>
#include <epan/prefs.h>
#include <epan/uat.h>
#include <epan/conversation.h>
#include <epan/value_string.h>
#include <epan/expert.h>
#include <epan/address.h>
#include <wsutil/filesystem.h>
#include <wsutil/file_util.h>
#include <wsutil/wsgcrypt.h>
#include <wsutil/report_message.h>
#include <wsutil/xtea.h>
#include <wsutil/strtoi.h>
#include <wsutil/rsa.h>
#include <errno.h>
#include <epan/ws_printf.h>
#include <epan/ptvcursor.h>
void proto_register_tibia(void);
void proto_reg_handoff_tibia(void);
/* preferences */
static gboolean try_otserv_key = TRUE,
show_char_name = TRUE,
show_acc_info = TRUE,
show_xtea_key = FALSE,
dissect_game_commands = FALSE,
reassemble_tcp_segments = TRUE;
/* User Access Tables */
#if HAVE_LIBGNUTLS
struct rsakey {
address addr;
guint16 port;
gcry_sexp_t privkey;
};
GHashTable *rsakeys;
struct rsakeys_assoc {
char *ipaddr;
char *port;
char *keyfile;
char *password;
};
UAT_CSTRING_CB_DEF(rsakeylist_uats, ipaddr, struct rsakeys_assoc)
UAT_CSTRING_CB_DEF(rsakeylist_uats, port, struct rsakeys_assoc)
UAT_FILENAME_CB_DEF(rsakeylist_uats, keyfile, struct rsakeys_assoc)
UAT_CSTRING_CB_DEF(rsakeylist_uats, password, struct rsakeys_assoc)
static void rsakey_free(void *_rsakey);
static uat_t *rsakeys_uat = NULL;
static struct rsakeys_assoc *rsakeylist_uats = NULL;
static guint nrsakeys = 0;
#endif
#define XTEA_KEY_LEN 16
struct xteakeys_assoc {
guint32 framenum;
char *key;
};
GHashTable *xteakeys;
static void *xteakeys_copy_cb(void *, const void *, size_t);
static void xteakeys_free_cb(void *);
static void xtea_parse_uat(void);
static gboolean xteakeys_uat_fld_key_chk_cb(void *, const char *, guint, const void *, const void *, char **);
UAT_DEC_CB_DEF(xteakeylist_uats, framenum, struct xteakeys_assoc)
UAT_CSTRING_CB_DEF(xteakeylist_uats, key, struct xteakeys_assoc)
static uat_t *xteakeys_uat = NULL;
static struct xteakeys_assoc *xteakeylist_uats = NULL;
static guint nxteakeys = 0;
#define COND_POISONED 0x1
#define COND_BURNING 0x2
#define COND_ELECTROCUTED 0x4
#define COND_DRUNK 0x8
#define COND_MANASHIELD 0x10
#define COND_PARALYZED 0x20
#define COND_HASTE 0x40
#define COND_BATTLE 0x80
#define COND_DROWNING 0x100
#define COND_FREEZING 0x200
#define COND_DAZZLED 0x400
#define COND_CURSED 0x800
#define COND_BUFF 0x1000
#define COND_PZBLOCK 0x2000
#define COND_PZ 0x4000
#define COND_BLEEDING 0x8000
#define COND_HUNGRY 0x10000
/* The login server has been traditionally on 7171,
* For OTServ, the game server often listens on the same IP/port,
* but occasionally on 7172. Official Tibia doesn't host login and
* game servers on the same IP address
*/
#define TIBIA_DEFAULT_TCP_PORT_RANGE "7171,7172"
static gint proto_tibia = -1;
static gint hf_tibia_len = -1;
static gint hf_tibia_nonce = -1;
static gint hf_tibia_adler32 = -1;
static gint hf_tibia_adler32_status = -1;
static gint hf_tibia_os = -1;
static gint hf_tibia_proto_version = -1;
static gint hf_tibia_client_version = -1;
static gint hf_tibia_file_versions = -1;
static gint hf_tibia_file_version_spr = -1;
static gint hf_tibia_file_version_dat = -1;
static gint hf_tibia_file_version_pic = -1;
static gint hf_tibia_game_preview_state = -1;
static gint hf_tibia_content_revision = -1;
static gint hf_tibia_undecoded_rsa_data = -1;
static gint hf_tibia_undecoded_xtea_data = -1;
static gint hf_tibia_unknown = -1;
static gint hf_tibia_xtea_key = -1;
static gint hf_tibia_loginflags_gm = -1;
static gint hf_tibia_acc_name = -1;
static gint hf_tibia_acc_number = -1;
static gint hf_tibia_session_key = -1;
static gint hf_tibia_char_name = -1;
static gint hf_tibia_acc_pass = -1;
static gint hf_tibia_char_name_convo = -1;
static gint hf_tibia_acc_name_convo = -1;
static gint hf_tibia_acc_pass_convo = -1;
static gint hf_tibia_session_key_convo = -1;
static gint hf_tibia_client_info = -1;
static gint hf_tibia_client_locale = -1;
static gint hf_tibia_client_locale_id = -1;
static gint hf_tibia_client_locale_name = -1;
static gint hf_tibia_client_ram = -1;
static gint hf_tibia_client_cpu = -1;
static gint hf_tibia_client_cpu_name = -1;
static gint hf_tibia_client_clock = -1;
static gint hf_tibia_client_clock2 = -1;
static gint hf_tibia_client_gpu = -1;
static gint hf_tibia_client_vram = -1;
static gint hf_tibia_client_resolution = -1;
static gint hf_tibia_client_resolution_x = -1;
static gint hf_tibia_client_resolution_y = -1;
static gint hf_tibia_client_resolution_hz = -1;
static gint hf_tibia_payload_len = -1;
static gint hf_tibia_loginserv_command = -1;
static gint hf_tibia_gameserv_command = -1;
static gint hf_tibia_client_command = -1;
static gint hf_tibia_motd = -1;
static gint hf_tibia_dlg_error = -1;
static gint hf_tibia_dlg_info = -1;
static gint hf_tibia_charlist = -1;
static gint hf_tibia_charlist_length = -1;
static gint hf_tibia_charlist_entry_name = -1;
static gint hf_tibia_charlist_entry_world = -1;
static gint hf_tibia_charlist_entry_ip = -1;
static gint hf_tibia_charlist_entry_port = -1;
static gint hf_tibia_worldlist = -1;
static gint hf_tibia_worldlist_length = -1;
static gint hf_tibia_worldlist_entry_name = -1;
static gint hf_tibia_worldlist_entry_ip = -1;
static gint hf_tibia_worldlist_entry_port = -1;
static gint hf_tibia_worldlist_entry_preview = -1;
static gint hf_tibia_worldlist_entry_id = -1;
static gint hf_tibia_pacc_days = -1;
static gint hf_tibia_channel_id = -1;
static gint hf_tibia_channel_name = -1;
static gint hf_tibia_char_cond = -1;
static gint hf_tibia_char_cond_poisoned = -1;
static gint hf_tibia_char_cond_burning = -1;
static gint hf_tibia_char_cond_electrocuted = -1;
static gint hf_tibia_char_cond_drunk = -1;
static gint hf_tibia_char_cond_manashield = -1;
static gint hf_tibia_char_cond_paralyzed = -1;
static gint hf_tibia_char_cond_haste = -1;
static gint hf_tibia_char_cond_battle = -1;
static gint hf_tibia_char_cond_drowning = -1;
static gint hf_tibia_char_cond_freezing = -1;
static gint hf_tibia_char_cond_dazzled = -1;
static gint hf_tibia_char_cond_cursed = -1;
static gint hf_tibia_char_cond_buff = -1;
static gint hf_tibia_char_cond_pzblock = -1;
static gint hf_tibia_char_cond_pz = -1;
static gint hf_tibia_char_cond_bleeding = -1;
static gint hf_tibia_char_cond_hungry = -1;
static int * const char_conds[] = {
&hf_tibia_char_cond_poisoned,
&hf_tibia_char_cond_burning,
&hf_tibia_char_cond_electrocuted,
&hf_tibia_char_cond_drunk,
&hf_tibia_char_cond_manashield,
&hf_tibia_char_cond_paralyzed,
&hf_tibia_char_cond_haste,
&hf_tibia_char_cond_battle,
&hf_tibia_char_cond_drowning,
&hf_tibia_char_cond_freezing,
&hf_tibia_char_cond_dazzled,
&hf_tibia_char_cond_cursed,
&hf_tibia_char_cond_buff,
&hf_tibia_char_cond_pzblock,
&hf_tibia_char_cond_pz,
&hf_tibia_char_cond_bleeding,
&hf_tibia_char_cond_hungry,
NULL
};
static gint hf_tibia_chat_msg = -1;
static gint hf_tibia_speech_type = -1;
static gint hf_tibia_coords_x = -1;
static gint hf_tibia_coords_y = -1;
static gint hf_tibia_coords_z = -1;
static gint hf_tibia_coords = -1;
static gint hf_tibia_stackpos = -1;
#if 0
static gint hf_tibia_item = -1;
#endif
static gint hf_tibia_container = -1;
static gint hf_tibia_container_icon = -1;
static gint hf_tibia_container_slot = -1;
static gint hf_tibia_container_slots = -1;
static gint hf_tibia_inventory = -1;
static gint hf_tibia_vip = -1;
static gint hf_tibia_vip_online = -1;
static gint hf_tibia_player = -1;
static gint hf_tibia_creature = -1;
static gint hf_tibia_creature_health = -1;
static gint hf_tibia_window = -1;
static gint hf_tibia_window_icon = -1;
static gint hf_tibia_window_textlen = -1;
static gint hf_tibia_window_text = -1;
static gint hf_tibia_light_level = -1;
static gint hf_tibia_light_color = -1;
static gint hf_tibia_magic_effect_id = -1;
static gint hf_tibia_animated_text_color = -1;
static gint hf_tibia_animated_text = -1;
static gint hf_tibia_projectile = -1;
static gint hf_tibia_squarecolor = -1;
static gint hf_tibia_textmsg_class = -1;
static gint hf_tibia_textmsg = -1;
static gint hf_tibia_walk_dir = -1;
static gint ett_tibia = -1;
static gint ett_command = -1;
static gint ett_file_versions = -1;
static gint ett_client_info = -1;
static gint ett_locale = -1;
static gint ett_cpu = -1;
static gint ett_resolution = -1;
static gint ett_charlist = -1;
static gint ett_worldlist = -1;
static gint ett_char = -1;
static gint ett_world = -1;
static gint ett_coords = -1;
static gint ett_char_cond = -1;
static expert_field ei_xtea_len_toobig = EI_INIT;
static expert_field ei_adler32_checksum_bad = EI_INIT;
static expert_field ei_rsa_plaintext_no_leading_zero = EI_INIT;
static expert_field ei_rsa_ciphertext_too_short = EI_INIT;
static expert_field ei_rsa_decrypt_failed = EI_INIT;
struct proto_traits {
guint32 adler32:1, rsa:1, compression:1, xtea:1, login_webservice:1, acc_name:1, nonce:1,
extra_gpu_info:1, gmbyte:1, hwinfo:1;
guint32 outfit_addons:1, stamina:1, lvl_on_msg:1;
guint32 ping:1, client_version:1, game_preview:1, auth_token:1, session_key:1;
guint32 game_content_revision:1, worldlist_in_charlist:1;
guint string_enc;
};
struct tibia_convo {
guint32 xtea_key[XTEA_KEY_LEN / sizeof (guint32)];
guint32 xtea_framenum;
const guint8 *acc, *pass, *char_name, *session_key;
struct proto_traits has;
guint16 proto_version;
guint8 loginserv_is_peer :1;
guint16 clientport;
guint16 servport;
gcry_sexp_t privkey;
};
static struct proto_traits
get_version_traits(guint16 version)
{
struct proto_traits has;
memset(&has, 0, sizeof has);
has.gmbyte = TRUE; /* Not sure when the GM byte first appeared */
has.string_enc = ENC_ISO_8859_1;
if (version >= 761) /* 761 was a test client. 770 was the first release */
has.xtea = has.rsa = TRUE;
if (version >= 780)
has.outfit_addons = has.stamina = has.lvl_on_msg = TRUE;
if (version >= 830)
has.adler32 = has.acc_name = TRUE;
if (version >= 841)
has.hwinfo = has.nonce = TRUE;
if (version >= 953)
has.ping = TRUE;
if (version >= 980)
has.client_version = has.game_preview = TRUE;
if (version >= 1010)
has.worldlist_in_charlist = TRUE;
if (version >= 1061)
has.extra_gpu_info = TRUE;
if (version >= 1071)
has.game_content_revision = TRUE;
if (version >= 1072)
has.auth_token = TRUE;
if (version >= 1074)
has.session_key = TRUE;
if (version >= 1101)
has.login_webservice = TRUE;
if (version >= 1111) {
has.compression = TRUE; /* with DEFLATE */
has.adler32 = FALSE;
}
#if 0 /* With the legacy client being phased out, maybe Unicode support incoming? */
if (version >= 11xy)
has.string_enc = ENC_UTF_8;
#endif
return has;
}
static guint16
get_version_get_charlist_packet_size(struct proto_traits *has)
{
guint16 size = 2;
if (has->adler32 || has->compression)
size += 4;
size += 17;
if (has->extra_gpu_info)
size += 222;
if (has->rsa)
size += 128;
return size;
}
static guint16
get_version_char_login_packet_size(struct proto_traits *has)
{
guint16 size = 2;
if (has->adler32 || has->compression)
size += 4;
size += 5;
if (has->client_version)
size += 4;
if (has->game_content_revision)
size += 2;
if (has->game_preview)
size += 1;
if (has->rsa)
size += 128;
return size;
}
#define XTEA_FROM_UAT 0
#define XTEA_UNKNOWN 0xFFFFFFFF
static struct tibia_convo *
tibia_get_convo(packet_info *pinfo)
{
conversation_t *epan_conversation = find_or_create_conversation(pinfo);
struct tibia_convo *convo = (struct tibia_convo*)conversation_get_proto_data(epan_conversation, proto_tibia);
if (!convo) {
address *servaddr;
convo = wmem_new0(wmem_file_scope(), struct tibia_convo);
/* FIXME there gotta be a cleaner way... */
if (pinfo->srcport >= 0xC000) {
convo->clientport = pinfo->srcport;
convo->servport = pinfo->destport;
servaddr = &pinfo->dst;
} else {
convo->clientport = pinfo->destport;
convo->servport = pinfo->srcport;
servaddr = &pinfo->src;
}
(void)servaddr;
#ifdef HAVE_LIBGNUTLS
struct rsakey rsa_key;
rsa_key.port = convo->servport;
rsa_key.addr = *servaddr;
convo->privkey = (gcry_sexp_t)g_hash_table_lookup(rsakeys, &rsa_key);
#endif
convo->xtea_framenum = XTEA_UNKNOWN;
conversation_add_proto_data(epan_conversation, proto_tibia, (void *)convo);
}
if (convo->xtea_framenum == XTEA_UNKNOWN) {
guint8 *xtea_key = (guint8*)g_hash_table_lookup(xteakeys, GUINT_TO_POINTER(pinfo->num));
if (xtea_key) {
memcpy(convo->xtea_key, xtea_key, XTEA_KEY_LEN);
convo->xtea_framenum = XTEA_FROM_UAT;
}
}
return convo;
}
static guint32
ipv4tonl(const char *str)
{
guint32 ipaddr = 0;
for (int octet = 0; octet < 4; octet++) {
ws_strtou8(str, &str, &((guint8*)&ipaddr)[octet]);
str++;
}
return ipaddr;
}
static void
register_gameserv_addr(struct tibia_convo *convo, guint32 ipaddr, guint16 port)
{
(void)convo; (void)ipaddr; (void)port;
#if HAVE_LIBGNUTLS
/* Game servers in the list inherit the same RSA key as the login server */
if (convo->has.rsa) {
struct rsakey *entry = g_new(struct rsakey, 1);
alloc_address_wmem(NULL, &entry->addr, AT_IPv4, sizeof ipaddr, &ipaddr);
entry->port = port;
entry->privkey = NULL;
if (g_hash_table_lookup(rsakeys, entry) == NULL) {
entry->privkey = convo->privkey;
g_hash_table_insert(rsakeys, entry, entry->privkey);
} else {
rsakey_free(entry);
}
}
/* TODO Mark all communication with the IP/Port pair above
* as Tibia communication. How?
*/
#endif
}
static gcry_sexp_t otserv_key;
static gcry_sexp_t
convo_get_privkey(struct tibia_convo *convo)
{
return convo->privkey ? convo->privkey
: try_otserv_key ? otserv_key
: NULL;
}
enum client_cmd {
/* from TibiaAPI */
C_GET_CHARLIST = 0x01,
C_LOGIN_CHAR = 0x0A,
C_LOGOUT = 0x14, /* I think this is a 7.7+ thing */
C_PONG = 0x1E,
C_AUTO_WALK = 0x64,
C_GO_NORTH = 0x65,
C_GO_EAST = 0x66,
C_GO_SOUTH = 0x67,
C_GO_WEST = 0x68,
C_AUTO_WALK_CANCEL = 0x69,
C_GO_NE = 0x6A,
C_GO_SE = 0x6B,
C_GO_SW = 0x6C,
C_GO_NW = 0x6D,
C_TURN_NORTH = 0x6F,
C_TURN_EAST = 0x70,
C_TURN_SOUTH = 0x71,
C_TURN_WEST = 0x72,
C_MOVE_ITEM = 0x78,
C_SHOP_BUY = 0x7A,
C_SHOP_SELL = 0x7B,
C_SHOP_CLOSE = 0x7C,
C_ITEM_USE = 0x82,
C_ITEM_USE_ON = 0x83,
C_ITEM_USE_BATTLELIST = 0x84,
C_ITEM_ROTATE = 0x85,
C_CONTAINER_CLOSE = 0x87,
C_CONTAINER_OPEN_PARENT = 0x88,
C_LOOK_AT = 0x8C,
C_PLAYER_SPEECH = 0x96,
C_CHANNEL_LIST = 0x97,
C_CHANNEL_OPEN = 0x98,
C_CHANNEL_CLOSE = 0x99,
C_PRIVATE_CHANNEL_OPEN = 0x9A,
C_NPC_CHANNEL_CLOSE = 0x9E,
C_FIGHT_MODES = 0xA0,
C_ATTACK = 0xA1,
C_FOLLOW = 0xA2,
C_CANCEL_GO = 0xBE,
C_TILE_UPDATE = 0xC9,
C_CONTAINER_UPDATE = 0xCA,
C_SET_OUTFIT = 0xD3,
C_VIP_ADD = 0xDC,
C_VIP_REMOVE = 0xDD
};
static const value_string from_client_packet_types[] = {
{ C_GET_CHARLIST, "Charlist request" },
{ C_LOGIN_CHAR, "Character login" },
{ C_LOGOUT, "Logout" },
{ C_PONG, "Pong" },
{ C_AUTO_WALK, "Map walk" },
{ C_GO_NORTH, "Go north"},
{ C_GO_EAST, "Go east"},
{ C_GO_SOUTH, "Go south"},
{ C_GO_WEST, "Go west"},
{ C_AUTO_WALK_CANCEL, "Map walk cancel" },
{ C_GO_NE, "Go north-east"},
{ C_GO_SE, "Go south-east"},
{ C_GO_SW, "Go south-west"},
{ C_GO_NW, "Go north-west"},
{ C_TURN_NORTH, "Turn north" },
{ C_TURN_EAST, "Turn east" },
{ C_TURN_SOUTH, "Turn south" },
{ C_TURN_WEST, "Turn west" },
{ C_MOVE_ITEM, "Move item" },
{ C_SHOP_BUY, "Buy in shop" },
{ C_SHOP_SELL, "Sell in shop" },
{ C_SHOP_CLOSE, "Close shop" },
{ C_ITEM_USE, "Use item" },
{ C_ITEM_USE_ON, "Use item on" },
{ C_ITEM_USE_BATTLELIST, "Use item on battle list" },
{ C_ITEM_ROTATE, "Rotate item" },
{ C_CONTAINER_CLOSE, "Close container" },
{ C_CONTAINER_OPEN_PARENT, "Open parent container" },
{ C_LOOK_AT, "Look at" },
{ C_PLAYER_SPEECH, "Speech" },
{ C_CHANNEL_LIST, "List channels" },
{ C_CHANNEL_OPEN, "Open public channel" },
{ C_CHANNEL_CLOSE, "close channel" },
{ C_PRIVATE_CHANNEL_OPEN, "Open private channel" },
{ C_NPC_CHANNEL_CLOSE, "Open NPC channel" },
{ C_FIGHT_MODES, "Set fight modes" },
{ C_ATTACK, "Attack" },
{ C_FOLLOW, "Follow" },
{ C_CANCEL_GO, "Cancel go" },
{ C_TILE_UPDATE, "Update tile" },
{ C_CONTAINER_UPDATE, "Update container" },
{ C_SET_OUTFIT, "Set outfit" },
{ C_VIP_ADD, "Add VIP" },
{ C_VIP_REMOVE, "Remove VIP" },
{ 0, NULL }
};
static value_string_ext from_client_packet_types_ext = VALUE_STRING_EXT_INIT(from_client_packet_types);
enum loginserv_cmd {
LOGINSERV_DLG_ERROR = 0x0A,
LOGINSERV_DLG_ERROR2 = 0x0B,
LOGINSERV_DLG_MOTD = 0x14,
LOGINSERV_SESSION_KEY = 0x28,
LOGINSERV_DLG_CHARLIST = 0x64
};
static const value_string from_loginserv_packet_types[] = {
{ LOGINSERV_DLG_ERROR, "Error" },
{ LOGINSERV_DLG_ERROR2, "Error" },
{ LOGINSERV_DLG_MOTD, "MOTD" },
{ LOGINSERV_SESSION_KEY, "Session key" },
{ LOGINSERV_DLG_CHARLIST, "Charlist" },
{ 0, NULL }
};
enum gameserv_cmd {
/* Credit to Khaos (OBJECT Networks). Values and comments extracted from PDF table */
S_MAPINIT = 0x0A, /* Long playerCreatureId Int unknownU16 (Byte reportBugs?) */
S_GMACTIONS = 0x0B, /* Used to be 32 unknown bytes, but with GMs removed it might not be in use anymore */
S_DLG_ERROR = 0x14, /* String errorMessage */
S_DLG_INFO = 0x15,
S_DLG_TOOMANYPLAYERS = 0x16,
S_PING = 0x1E,
S_NONCE = 0x1F,
S_PLAYERLOC = 0x64, /* Coord pos */
S_GO_NORTH = 0x65, /* MapDescription (18,1) */
S_GO_EAST = 0x66, /* MapDescription (1,14) */
S_GO_SOUTH = 0x67, /* MapDescription (18,1) */
S_GO_WEST = 0x68, /* MapDescription (1,14) */
S_TILEUPDATE = 0x69, /* Coord pos TileDescription td */
S_ADDITEM = 0x6a, /* Coord pos ThingDescription thing */
S_REPLACEITEM = 0x6b, /* Coord pos Byte stackpos ThingDescription thing */
S_REMOVEITEM = 0x6c, /* Coord pos Byte stackpos */
S_MOVE_THING = 0x6d,
S_CONTAINER = 0x6e, /* Byte index Short containerIcon Byte slotCount ThingDescription item */
S_CONTAINERCLOSE = 0x6f, /* Byte index */
S_ADDITEMCONTAINER = 0x70, /* Byte index ThingDescription itm */
S_TRANSFORMITEMCONTAINER = 0x71, /* Byte index Byte slot */
S_REMOVEITEMCONTAINER = 0x72, /* Byte index Byte slot */
S_INVENTORYEMPTY = 0x78, /* Byte invSlot */
S_INVENTORYITEM = 0x79, /* Byte invSlot ThingDescription itm */
S_TRADEREQ = 0x7d, /* String otherperson Byte slotCount ThingDescription itm */
S_TRADEACK = 0x7e, /* String otherperson Byte slotCount ThingDescription itm */
S_TRADECLOSE = 0x7f,
S_LIGHTLEVEL = 0x82, /* Byte lightlevel Byte lightcolor */
S_MAGIC_EFFECT = 0x83,
S_ANIMATEDTEXT = 0x84, /* Coord pos Byte color String message */
S_DISTANCESHOT = 0x85, /* Coord pos1 Byte stackposition Coord pos2 */
S_CREATURESQUARE = 0x86, /* Long creatureid Byte squarecolor */
S_CREATURE_HEALTH = 0x8C,
S_CREATURELIGHT = 0x8d, /* Long creatureid Byte ? Byte ? */
S_SETOUTFIT = 0x8e, /* Long creatureid Byte lookType Byte headType Byte bodyType Byte legsType Byte feetType // can extended look go here too? */
S_CREATURESPEED = 0x8f, /* YIKES! I didnt handle this! */
S_TEXTWINDOW = 0x96, /* Long windowId Byte icon Byte maxlength String message */
S_STATUSMSG = 0xA0, /* Status status */
S_SKILLS = 0xA1, /* Skills skills */
S_PLAYER_CONDITION = 0xA2,
S_CANCELATTACK = 0xA3,
S_SPEAK = 0xAA,
S_CHANNELSDIALOG = 0xAB, /* Byte channelCount (Int channelId String channelName) */
S_CHANNEL_OPEN = 0xAC,
S_OPENPRIV = 0xAD, /* String playerName */
S_TEXTMESSAGE = 0xB4, /* Byte msgClass String string */
S_CANCELWALK = 0xB5, /* Byte direction */
S_FLOORUP = 0xBE, /* Advanced topic; read separate text */
S_FLOORDOWN = 0xBF, /* Advanced topic; read separate text */
S_OUTFITLIST = 0xC8, /* Byte lookType Byte headType Byte bodyType Byte legsType Byte feetType Byte firstModel Byte lastModel */
S_VIPADD = 0xD2, /* long guid string name byte isonline */
S_VIPLOGIN = 0xD3, /* long guid */
S_VIPLOGOUT = 0xD4 /* long guid*/
};
static const value_string from_gameserv_packet_types[] = {
{ S_MAPINIT, "Initialize map" },
{ S_GMACTIONS, "GM actions" },
{ S_DLG_ERROR, "Error" },
{ S_DLG_INFO, "Info" },
{ S_DLG_TOOMANYPLAYERS, "Too many players" },
{ S_PING, "Ping" },
{ S_NONCE, "Nonce" },
{ S_PLAYERLOC, "Set player location" },
{ S_GO_NORTH, "Go north" },
{ S_GO_EAST, "Go east" },
{ S_GO_SOUTH, "Go south" },
{ S_GO_WEST, "Go west" },
{ S_TILEUPDATE, "Update tile" },
{ S_ADDITEM, "Add item" },
{ S_REPLACEITEM, "Replace item" },
{ S_REMOVEITEM, "Remove item" },
{ S_MOVE_THING, "Move thing" },
{ S_CONTAINER, "Open container" },
{ S_CONTAINERCLOSE, "Close container" },
{ S_ADDITEMCONTAINER, "Add item in container" },
{ S_TRANSFORMITEMCONTAINER, "Transform item in container" },
{ S_REMOVEITEMCONTAINER, "Remove item in container" },
{ S_INVENTORYEMPTY, "Inventory empty" },
{ S_INVENTORYITEM, "Inventory item" },
{ S_TRADEREQ, "Trade request" },
{ S_TRADEACK, "Trade acknowledge" },
{ S_TRADECLOSE, "Trade over" },
{ S_LIGHTLEVEL, "Light level" },
{ S_MAGIC_EFFECT, "Magic effect" },
{ S_ANIMATEDTEXT, "Animated text" },
{ S_DISTANCESHOT, "Distance shot" },
{ S_CREATURESQUARE, "Creature square" },
{ S_CREATURE_HEALTH, "Creature health" },
{ S_CREATURELIGHT, "Creature light" },
{ S_SETOUTFIT, "Set outfit" },
{ S_CREATURESPEED, "Set creature speed" },
{ S_TEXTWINDOW, "Text window" },
{ S_STATUSMSG, "Status message" },
{ S_SKILLS, "Skills" },
{ S_PLAYER_CONDITION, "Player condition" },
{ S_CANCELATTACK, "Cancel attack" },
{ S_SPEAK, "Creature speech" },
{ S_CHANNELSDIALOG, "Channels dialog" },
{ S_CHANNEL_OPEN, "Channel open" },
{ S_OPENPRIV, "Private channel open" },
{ S_TEXTMESSAGE, "Text message" },
{ S_CANCELWALK, "Cancel walk" },
{ S_FLOORUP, "Floor +1" },
{ S_FLOORDOWN, "Floor -1" },
{ S_OUTFITLIST, "Outfit list" },
{ S_VIPADD, "Add VIP" },
{ S_VIPLOGIN, "VIP login" },
{ S_VIPLOGOUT, "VIP logout" },
{ 0, NULL }
};
static value_string_ext from_gameserv_packet_types_ext = VALUE_STRING_EXT_INIT(from_gameserv_packet_types);
static const unit_name_string mb_unit = {"MB", NULL};
static int
dissect_loginserv_packet(struct tibia_convo *convo, tvbuff_t *tvb, int offset, int len, packet_info *pinfo, proto_tree *tree, gboolean first_fragment )
{
ptvcursor_t *ptvc = ptvcursor_new(pinfo->pool, tree, tvb, offset);
col_append_str(pinfo->cinfo, COL_INFO, first_fragment ? " commands:" : ",");
len += offset;
if (ptvcursor_current_offset(ptvc) < len) {
for (;;) {
int cmd = tvb_get_guint8(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add_with_subtree(ptvc, hf_tibia_loginserv_command, 1, convo->has.string_enc, ett_command);
ptvcursor_advance(ptvc, 1);
switch ((enum loginserv_cmd)cmd) {
case LOGINSERV_DLG_ERROR:
case LOGINSERV_DLG_ERROR2:
ptvcursor_add(ptvc, hf_tibia_dlg_error, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case LOGINSERV_DLG_MOTD:
ptvcursor_add(ptvc, hf_tibia_motd, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case LOGINSERV_SESSION_KEY:
ptvcursor_add(ptvc, hf_tibia_session_key, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case LOGINSERV_DLG_CHARLIST:
if (convo->has.worldlist_in_charlist) {
guint8 world_count = tvb_get_guint8(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add(ptvc, hf_tibia_worldlist_length, 1, ENC_NA);
/* Empty character list? */
if (world_count) {
ptvcursor_add_with_subtree(ptvc, hf_tibia_worldlist, SUBTREE_UNDEFINED_LENGTH, ENC_NA, ett_worldlist);
while (world_count--) {
proto_item *it = ptvcursor_add(ptvc, hf_tibia_worldlist_entry_id, 1, ENC_NA);
ptvcursor_push_subtree(ptvc, it, ett_world);
ptvcursor_add(ptvc, hf_tibia_worldlist_entry_name, 2, convo->has.string_enc | ENC_LITTLE_ENDIAN);
guint ipv4addr_len = tvb_get_letohs(tvb, ptvcursor_current_offset(ptvc));
char *ipv4addr_str = (char*)tvb_get_string_enc(pinfo->pool, tvb, ptvcursor_current_offset(ptvc) + 2, ipv4addr_len, ENC_LITTLE_ENDIAN | convo->has.string_enc);
guint32 ipv4addr = ipv4tonl(ipv4addr_str);
ptvcursor_add(ptvc, hf_tibia_worldlist_entry_ip, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
guint16 port = tvb_get_letohs(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add(ptvc, hf_tibia_worldlist_entry_port, 2, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_worldlist_entry_preview, 1, ENC_NA);
ptvcursor_pop_subtree(ptvc);
register_gameserv_addr(convo, ipv4addr, port);
}
ptvcursor_pop_subtree(ptvc);
}
guint8 char_count = tvb_get_guint8(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add(ptvc, hf_tibia_charlist_length, 1, ENC_NA);
if (char_count) {
ptvcursor_add_with_subtree(ptvc, hf_tibia_charlist, SUBTREE_UNDEFINED_LENGTH, ENC_NA, ett_charlist);
while (char_count--) {
proto_item *it = ptvcursor_add(ptvc, hf_tibia_worldlist_entry_id, 1, ENC_NA);
ptvcursor_push_subtree(ptvc, it, ett_char);
ptvcursor_add(ptvc, hf_tibia_charlist_entry_name, 2, convo->has.string_enc | ENC_LITTLE_ENDIAN);
ptvcursor_pop_subtree(ptvc);
}
ptvcursor_pop_subtree(ptvc);
}
} else {
guint8 char_count = tvb_get_guint8(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add(ptvc, hf_tibia_charlist_length, 1, ENC_NA);
if (char_count) {
ptvcursor_add_with_subtree(ptvc, hf_tibia_charlist, SUBTREE_UNDEFINED_LENGTH, ENC_NA, ett_charlist);
while (char_count--) {
proto_item *it = ptvcursor_add(ptvc, hf_tibia_charlist_entry_name, 2, convo->has.string_enc | ENC_LITTLE_ENDIAN);
ptvcursor_push_subtree(ptvc, it, ett_char);
ptvcursor_add(ptvc, hf_tibia_charlist_entry_world, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
guint32 ipv4addr = tvb_get_ipv4(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add(ptvc, hf_tibia_charlist_entry_ip, 4, ENC_BIG_ENDIAN);
guint16 port = tvb_get_letohs(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add(ptvc, hf_tibia_charlist_entry_port, 2, ENC_BIG_ENDIAN);
ptvcursor_pop_subtree(ptvc);
register_gameserv_addr(convo, ipv4addr, port);
}
ptvcursor_pop_subtree(ptvc);
}
ptvcursor_add(ptvc, hf_tibia_pacc_days, 2, ENC_LITTLE_ENDIAN);
}
break;
default:
offset = ptvcursor_current_offset(ptvc);
call_data_dissector(tvb_new_subset_length(tvb, offset, len - offset), pinfo, ptvcursor_tree(ptvc));
ptvcursor_advance(ptvc, len - offset);
}
ptvcursor_pop_subtree(ptvc);
col_append_fstr(pinfo->cinfo, COL_INFO, " %s (0x%x)",
val_to_str(cmd, from_loginserv_packet_types, "Unknown"), cmd);
if (ptvcursor_current_offset(ptvc) >= len)
break;
col_append_str(pinfo->cinfo, COL_INFO, ",");
}
}
offset = ptvcursor_current_offset(ptvc);
ptvcursor_free(ptvc);
return offset;
}
static void
dissect_coord(ptvcursor_t *ptvc, gboolean with_stackpos)
{
tvbuff_t *tvb;
proto_tree *tree;
int offset;
guint32 x, y, z, stackpos;
proto_item *coords_tuple = ptvcursor_add_with_subtree(ptvc, hf_tibia_coords, SUBTREE_UNDEFINED_LENGTH, ENC_NA, ett_coords);
{
tvb = ptvcursor_tvbuff(ptvc);
tree = ptvcursor_tree(ptvc);
offset = ptvcursor_current_offset(ptvc);
proto_tree_add_item_ret_uint(tree, hf_tibia_coords_x, tvb, offset, 2, ENC_LITTLE_ENDIAN, &x);
offset += 2;
proto_tree_add_item_ret_uint(tree, hf_tibia_coords_y, tvb, offset, 2, ENC_LITTLE_ENDIAN, &y);
offset += 2;
proto_tree_add_item_ret_uint(tree, hf_tibia_coords_z, tvb, offset, 1, ENC_NA, &z);
offset += 1;
ptvcursor_advance(ptvc, 5);
}
if (with_stackpos) {
proto_tree_add_item_ret_uint(tree, hf_tibia_stackpos, tvb, offset, 1, ENC_NA, &stackpos);
proto_item_set_text(coords_tuple, "Coordinates: (%u, %u, %u)[%u]", x, y, z, stackpos);
ptvcursor_advance(ptvc, 1);
} else {
proto_item_set_text(coords_tuple, "Coordinates: (%u, %u, %u)", x, y, z);
}
ptvcursor_pop_subtree(ptvc);
}
static int
dissect_gameserv_packet(struct tibia_convo *convo, tvbuff_t *tvb, int offset, int len, packet_info *pinfo, proto_tree *tree, gboolean first_fragment)
{
ptvcursor_t *ptvc = ptvcursor_new(pinfo->pool, tree, tvb, offset);
col_append_str(pinfo->cinfo, COL_INFO, first_fragment ? " commands:" : ",");
len += offset;
if (ptvcursor_current_offset(ptvc) < len) {
for (;;) {
int cmd = tvb_get_guint8(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add_with_subtree(ptvc, hf_tibia_gameserv_command, 1, convo->has.string_enc, ett_command);
ptvcursor_advance(ptvc, 1);
switch ((enum gameserv_cmd)cmd) {
case S_DLG_INFO:
case S_DLG_ERROR:
case S_DLG_TOOMANYPLAYERS:
ptvcursor_add(ptvc, cmd == S_DLG_ERROR ? hf_tibia_dlg_error : hf_tibia_dlg_info, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case S_GMACTIONS: /* 0x0B, Used to be 32 unknown bytes, but with GMs removed it might not be in use anymore */
ptvcursor_add(ptvc, hf_tibia_unknown, 32, ENC_NA);
break;
case S_PLAYERLOC: /* 0x64,Coord pos */
dissect_coord(ptvc, FALSE);
break;
case S_TILEUPDATE: /* 0x69,Coord pos TileDescription td */
dissect_coord(ptvc, FALSE);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_ADDITEM: /* 0x6a,Coord pos ThingDescription thing */
dissect_coord(ptvc, FALSE);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_REPLACEITEM: /* 0x6b,Coord pos Byte stackpos ThingDescription thing */
dissect_coord(ptvc, TRUE);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_REMOVEITEM: /* 0x6c,Coord pos Byte stackpos */
dissect_coord(ptvc, TRUE);
break;
case S_MOVE_THING: /* 0x6d, */
dissect_coord(ptvc, TRUE);
dissect_coord(ptvc, FALSE);
break;
case S_CONTAINER: /* 0x6e,Byte index Short containerIcon Byte slotCount ThingDescription item */
ptvcursor_add(ptvc, hf_tibia_container, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_container_icon, 2, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_container_slots, 2, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_CONTAINERCLOSE: /* 0x6f,Byte index */
ptvcursor_add(ptvc, hf_tibia_container, 1, ENC_NA);
break;
case S_ADDITEMCONTAINER: /* 0x70,Byte index ThingDescription itm */
ptvcursor_add(ptvc, hf_tibia_container, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_TRANSFORMITEMCONTAINER:/* 0x71,Byte index Byte slot */
ptvcursor_add(ptvc, hf_tibia_container, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_container_slot, 1, ENC_NA);
break;
case S_REMOVEITEMCONTAINER: /* 0x72,Byte index Byte slot */
ptvcursor_add(ptvc, hf_tibia_container, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_container_slot, 1, ENC_NA);
break;
case S_INVENTORYEMPTY: /* 0x78,Byte invSlot */
ptvcursor_add(ptvc, hf_tibia_inventory, 1, ENC_NA);
break;
case S_INVENTORYITEM: /* 0x79,Byte invSlot ThingDescription itm */
ptvcursor_add(ptvc, hf_tibia_inventory, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_TRADEREQ: /* 0x7d,String otherperson Byte slotCount ThingDescription itm */
ptvcursor_add(ptvc, hf_tibia_player, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
ptvcursor_add(ptvc, hf_tibia_inventory, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_TRADEACK: /* 0x7e,String otherperson Byte slotCount ThingDescription itm */
ptvcursor_add(ptvc, hf_tibia_player, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
ptvcursor_add(ptvc, hf_tibia_inventory, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_TRADECLOSE: /* 0x7f, */
break;
case S_LIGHTLEVEL: /* 0x82,Byte lightlevel Byte lightcolor */
ptvcursor_add(ptvc, hf_tibia_light_level, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_light_color, 1, ENC_NA);
break;
case S_MAGIC_EFFECT: /* 0x83, */
dissect_coord(ptvc, FALSE);
ptvcursor_add(ptvc, hf_tibia_magic_effect_id, 1, ENC_NA);
break;
case S_ANIMATEDTEXT: /* 0x84,Coord pos Byte color String message */
dissect_coord(ptvc, FALSE);
ptvcursor_add(ptvc, hf_tibia_animated_text_color, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_animated_text, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case S_DISTANCESHOT: /* 0x85,Coord pos1 Byte stackposition Coord pos2 */
dissect_coord(ptvc, FALSE);
ptvcursor_add(ptvc, hf_tibia_projectile, 4, ENC_LITTLE_ENDIAN);
dissect_coord(ptvc, FALSE);
break;
case S_CREATURESQUARE: /* 0x86,Long creatureid Byte squarecolor */
ptvcursor_add(ptvc, hf_tibia_creature, 4, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_squarecolor, 1, ENC_NA);
break;
case S_CREATURE_HEALTH: /* 0x8C, */
ptvcursor_add(ptvc, hf_tibia_creature, 1, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_creature_health, 1, ENC_NA);
break;
case S_CREATURELIGHT: /* 0x8d,Long creatureid Byte ? Byte ? */
ptvcursor_add(ptvc, hf_tibia_creature, 1, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_unknown, 2, ENC_NA);
break;
case S_SETOUTFIT: /* 0x8e,Long creatureid Byte lookType Byte headType Byte bodyType Byte legsType Byte feetType // can extended look go here too? */
ptvcursor_add(ptvc, hf_tibia_creature, 1, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_unknown, len - ptvcursor_current_offset(ptvc), ENC_NA);
break;
case S_TEXTWINDOW: /* 0x96,Long windowId Byte icon Byte maxlength String message */
ptvcursor_add(ptvc, hf_tibia_window, 4, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_window_icon, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_window_textlen, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_window_text, 1, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case S_PLAYER_CONDITION: /* 0xA2, */
proto_tree_add_bitmask(ptvcursor_tree(ptvc), ptvcursor_tvbuff(ptvc), ptvcursor_current_offset(ptvc), hf_tibia_char_cond, ett_char_cond, char_conds, ENC_LITTLE_ENDIAN);
ptvcursor_advance(ptvc, 4);
break;
case S_CANCELATTACK: /* 0xA3, */
break;
case S_CHANNEL_OPEN:
ptvcursor_add(ptvc, hf_tibia_channel_id, 2, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_channel_name, 2, ENC_LITTLE_ENDIAN|convo->has.string_enc);
ptvcursor_add(ptvc, hf_tibia_unknown, 4, ENC_NA);
break;
case S_OPENPRIV: /* 0xAD,String playerName */
ptvcursor_add(ptvc, hf_tibia_player, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case S_TEXTMESSAGE: /* 0xB4,Byte msgClass String string */
ptvcursor_add(ptvc, hf_tibia_textmsg_class, 1, ENC_NA);
ptvcursor_add(ptvc, hf_tibia_textmsg, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
break;
case S_CANCELWALK: /* 0xB5,Byte direction */
ptvcursor_add(ptvc, hf_tibia_walk_dir, 1, ENC_NA);
break;
case S_VIPADD: /* 0xd2,long guid string name byte isonline */
ptvcursor_add(ptvc, hf_tibia_vip, 4, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_player, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc);
ptvcursor_add(ptvc, hf_tibia_vip_online, 1, ENC_NA);
break;
case S_VIPLOGIN: /* 0xd3,long guid */
ptvcursor_add(ptvc, hf_tibia_vip, 4, ENC_LITTLE_ENDIAN);
break;
case S_VIPLOGOUT: /* 0xd4long guid*/
ptvcursor_add(ptvc, hf_tibia_vip, 4, ENC_LITTLE_ENDIAN);
break;
case S_PING:
break;
case S_NONCE: /* 0x1F, */
ptvcursor_add(ptvc, hf_tibia_nonce, 5, ENC_NA);
break;
case S_MAPINIT: /* 0x0A, Long playerCreatureId Int unknownU16 (Byte reportBugs?) */
case S_OUTFITLIST: /* 0xC8,Byte lookType Byte headType Byte bodyType Byte legsType Byte feetType Byte firstModel Byte lastModel */
/* TODO This changed with mounts and outfit */
case S_FLOORUP: /* 0xBE,Advanced topic; read separate text */
case S_FLOORDOWN: /* 0xBF,Advanced topic; read separate text */
case S_SPEAK: /* 0xAA, */
case S_CHANNELSDIALOG: /* 0xAB,Byte channelCount (Int channelId String channelName) */
case S_STATUSMSG: /* 0xA0,Status status */
case S_SKILLS: /* 0xA1,Skills skills */
case S_CREATURESPEED: /* 0x8f,YIKES! I didnt handle this! */
case S_GO_NORTH: /* 0x65,MapDescription (18,1) */
case S_GO_EAST: /* 0x66,MapDescription (1,14) */
case S_GO_SOUTH: /* 0x67,MapDescription (18,1) */
case S_GO_WEST: /* 0x68,MapDescription (1,14) */
default:
offset = ptvcursor_current_offset(ptvc);
call_data_dissector(tvb_new_subset_length(tvb, offset, len - offset), pinfo, ptvcursor_tree(ptvc));
ptvcursor_advance(ptvc, len - offset);
}
ptvcursor_pop_subtree(ptvc);
col_append_fstr(pinfo->cinfo, COL_INFO, " %s (0x%x)",
val_to_str(cmd, from_gameserv_packet_types, "Unknown"), cmd);
if (ptvcursor_current_offset(ptvc) >= len)
break;
col_append_str(pinfo->cinfo, COL_INFO, ",");
}
}
offset = ptvcursor_current_offset(ptvc);
ptvcursor_free(ptvc);
return offset;
}
static int
dissect_client_packet(struct tibia_convo *convo, tvbuff_t *tvb, int offset, int len, packet_info *pinfo, proto_tree *tree, gboolean first_fragment)
{
ptvcursor_t *ptvc = ptvcursor_new(pinfo->pool, tree, tvb, offset);
col_append_str(pinfo->cinfo, COL_INFO, first_fragment ? " commands:" : ",");
len += offset;
if (ptvcursor_current_offset(ptvc) < len) {
for (;;) {
int cmd = tvb_get_guint8(tvb, ptvcursor_current_offset(ptvc));
ptvcursor_add_with_subtree(ptvc, hf_tibia_client_command, 1, convo->has.string_enc, ett_command);
ptvcursor_advance(ptvc, 1);
switch ((enum client_cmd)cmd) {
case C_PLAYER_SPEECH: {
guint8 type = tvb_get_guint8(ptvcursor_tvbuff(ptvc), ptvcursor_current_offset(ptvc));
ptvcursor_add(ptvc, hf_tibia_speech_type, 1, ENC_NA);
if (type == 0x7)
ptvcursor_add(ptvc, hf_tibia_channel_id, 2, ENC_LITTLE_ENDIAN);
ptvcursor_add(ptvc, hf_tibia_chat_msg, 2, ENC_LITTLE_ENDIAN|convo->has.string_enc);
}
break;
case C_PONG:
break;
default:
offset = ptvcursor_current_offset(ptvc);
call_data_dissector(tvb_new_subset_length(tvb, offset, len - offset), pinfo, ptvcursor_tree(ptvc));
ptvcursor_advance(ptvc, len - offset);
}
ptvcursor_pop_subtree(ptvc);
col_append_fstr(pinfo->cinfo, COL_INFO, " %s (0x%x)",
val_to_str(cmd, from_client_packet_types, "Unknown"), cmd);
if (ptvcursor_current_offset(ptvc) >= len)
break;
col_append_str(pinfo->cinfo, COL_INFO, ",");
}
}
offset = ptvcursor_current_offset(ptvc);
ptvcursor_free(ptvc);
return offset;
}
static int
dissect_game_packet(struct tibia_convo *convo, tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, gboolean is_xtea_encrypted, gboolean first_fragment)
{
proto_item *ti = NULL;
int len = tvb_captured_length_remaining(tvb, offset);
if (show_acc_info) {
if (convo->has.session_key) {
if (convo->session_key) {
ti = proto_tree_add_string(tree, hf_tibia_session_key_convo, tvb, offset, 0, (const char*)convo->session_key);
proto_item_set_generated(ti);
}
} else {
if (convo->acc) {
ti = proto_tree_add_string(tree, hf_tibia_acc_name_convo, tvb, offset, 0, (const char*)convo->acc);
proto_item_set_generated(ti);
}
if (convo->pass) {
ti = proto_tree_add_string(tree, hf_tibia_acc_pass_convo, tvb, offset, 0, (const char*)convo->pass);
proto_item_set_generated(ti);
}
}
}
if (show_char_name && convo->char_name) {
ti = proto_tree_add_string(tree, hf_tibia_char_name_convo, tvb, offset, 0, (const char*)convo->char_name);
proto_item_set_generated(ti);
}
if (is_xtea_encrypted) {
if (pinfo->num > convo->xtea_framenum) {
if (show_xtea_key && convo->has.xtea) {
ti = proto_tree_add_bytes_with_length(tree, hf_tibia_xtea_key, tvb, 0, 0, (guint8*)convo->xtea_key, XTEA_KEY_LEN);
proto_item_set_generated(ti);
}
int end = offset + len;
if (len % 8 != 0)
return -1;
guint8 *decrypted_buffer = (guint8*)wmem_alloc(pinfo->pool, len);
for (guint8 *dstblock = decrypted_buffer; offset < end; offset += 8) {
decrypt_xtea_le_ecb(dstblock, tvb_get_ptr(tvb, offset, 8), convo->xtea_key, 32);
dstblock += 8;
}
tvb = tvb_new_child_real_data(tvb, decrypted_buffer, len, len);
add_new_data_source(pinfo, tvb, "Decrypted Game Data");
offset = 0;
} else {
proto_tree_add_item(tree, hf_tibia_undecoded_xtea_data, tvb, offset, len, ENC_NA);
return offset;
}
}
if (convo->has.xtea) {
len = tvb_get_letohs(tvb, offset);
ti = proto_tree_add_item(tree, hf_tibia_payload_len, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
if (len > tvb_captured_length_remaining(tvb, offset)) {
expert_add_info(pinfo, ti, &ei_xtea_len_toobig);
return offset;
}
}
if (pinfo->srcport == convo->servport && convo->loginserv_is_peer)
return dissect_loginserv_packet(convo, tvb, offset, len, pinfo, tree, first_fragment);
if (!dissect_game_commands) {
call_data_dissector(tvb_new_subset_length(tvb, offset, len), pinfo, tree);
return offset + len;
}
if (pinfo->srcport == convo->servport)
return dissect_gameserv_packet(convo, tvb, offset, len, pinfo, tree, first_fragment);
else
return dissect_client_packet(convo, tvb, offset, len, pinfo, tree, first_fragment);
}
static int
dissect_tibia(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *fragment_num)
{
tvbuff_t *tvb_decrypted = tvb;
gboolean is_xtea_encrypted = FALSE;
enum { TIBIA_GAMESERV, TIBIA_LOGINSERV } serv = TIBIA_GAMESERV;
guint16 plen = tvb_get_letohs(tvb, 0) + 2;
/* if announced length != real length it's not a tibia packet */
if (tvb_reported_length_remaining(tvb, 0) != plen)
return 0;
struct tibia_convo *convo = tibia_get_convo(pinfo);
int offset = 2;
int a32len = tvb_reported_length_remaining(tvb, offset + 4);
guint32 packet_cksum = tvb_get_letohl(tvb, offset);
guint32 computed_cksum = GUINT32_TO_LE(adler32_bytes(tvb_get_ptr(tvb, offset + 4, a32len), a32len));
convo->has.adler32 = packet_cksum == computed_cksum;
if (convo->has.adler32)
offset += 4;
/* FIXME Tibia >=11.11 has a sequence number instead, this is yet unhandled */
/* Is it a nonce? */
if (tvb_get_letohs(tvb, offset) == plen - offset - 2
&& tvb_get_guint8(tvb, offset+2) == S_NONCE) {
/* Don't do anything. We'll handle it as unencrypted game command later */
} else {
guint8 cmd;
guint16 version;
struct proto_traits version_has;
cmd = tvb_get_guint8(tvb, offset);
offset += 1;
offset += 2; /* OS */
version = tvb_get_letohs(tvb, offset);
version_has = get_version_traits(version);
switch(cmd) {
case C_GET_CHARLIST:
if ((700 <= version && version <= 760 && !convo->has.adler32 && 25 <= plen && plen <= 54)
|| get_version_get_charlist_packet_size(&version_has) == plen) {
serv = TIBIA_LOGINSERV;
convo->loginserv_is_peer = TRUE;
}
break;
case C_LOGIN_CHAR:
/* The outcast client I tried, zero-pads the 760 login request.
* I don't think the Cipsoft client ever did this.
*/
if ((700 <= version && version <= 760 && !convo->has.adler32 && 25 <= plen && plen <= 54)
|| get_version_char_login_packet_size(&version_has) == plen)
serv = TIBIA_LOGINSERV;
break;
default:
is_xtea_encrypted = convo->has.xtea;
}
}
offset = 0; /* With the version extracted, let's build the tree */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Tibia");
if (GPOINTER_TO_UINT(fragment_num) == 1) {
/* We don't want to repeat ourselves in the info column if there are fragments */
if (serv == TIBIA_LOGINSERV)
col_set_str(pinfo->cinfo, COL_INFO, "Login");
else if (pinfo->srcport == convo->servport)
col_set_str(pinfo->cinfo, COL_INFO, "Server");
else
col_set_str(pinfo->cinfo, COL_INFO, "Client");
}
proto_item *ti = proto_tree_add_item(tree, proto_tibia, tvb, 0, -1, ENC_NA);
proto_tree *tibia_tree = proto_item_add_subtree(ti, ett_tibia);
proto_tree_add_item(tibia_tree, hf_tibia_len, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
if (convo->has.adler32) {
proto_tree_add_checksum(tibia_tree, tvb, offset, hf_tibia_adler32, hf_tibia_adler32_status, &ei_adler32_checksum_bad, pinfo, computed_cksum, ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
offset += 4;
} else if (convo->has.compression) {
offset += 4;
}
if (serv == TIBIA_GAMESERV)
return dissect_game_packet(convo, tvb, offset, pinfo, tibia_tree, is_xtea_encrypted, GPOINTER_TO_UINT(fragment_num) == 1);
proto_tree_add_item(tibia_tree, hf_tibia_client_command, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item(tibia_tree, hf_tibia_os, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
convo->proto_version = tvb_get_letohs(tvb, offset);
convo->has = get_version_traits(convo->proto_version);
proto_tree_add_item(tibia_tree, hf_tibia_proto_version, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
if (convo->has.client_version) {
proto_tree_add_item(tibia_tree, hf_tibia_client_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
}
if (convo->loginserv_is_peer) {
proto_tree *vertree;
/* The first 4 bytes of the client's tibia.pic, tibia.dat and tibia.spr files */
proto_item *subti = proto_tree_add_item(tibia_tree, hf_tibia_file_versions, tvb, offset, 12, ENC_NA);
vertree = proto_item_add_subtree(subti, ett_file_versions);
proto_tree_add_item(vertree, hf_tibia_file_version_spr, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(vertree, hf_tibia_file_version_dat, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(vertree, hf_tibia_file_version_pic, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
} else if (convo->has.game_content_revision) {
proto_tree_add_item(tibia_tree, hf_tibia_content_revision, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
}
if (convo->has.game_preview) {
proto_tree_add_item(tibia_tree, hf_tibia_game_preview_state, tvb, offset, 1, ENC_NA);
offset += 1;
}
int rsa1_end = 0; /* End of first RSA block */
if (convo->has.rsa) {
gcry_sexp_t privkey;
if (!(privkey = convo_get_privkey(convo))) {
proto_tree_add_item(tibia_tree, hf_tibia_undecoded_rsa_data, tvb, offset, plen - offset, ENC_NA);
return offset;
}
guint ciphertext_len = tvb_captured_length_remaining(tvb, offset);
if (ciphertext_len < 128) {
expert_add_info(pinfo, ti, &ei_rsa_ciphertext_too_short);
return offset;
}
rsa1_end = offset + 128;
guint8 *payload = (guint8*)tvb_memdup(pinfo->pool, tvb, offset, 128);
char *err = NULL;
size_t payload_len;
if (!(payload_len = rsa_decrypt_inplace(128, payload, privkey, FALSE, &err))) {
expert_add_info_format(pinfo, ti, &ei_rsa_decrypt_failed, "Decrypting RSA block failed: %s", err);
g_free(err);
return offset;
}
size_t leading_zeroes = 128 - payload_len;
memmove(payload + leading_zeroes, payload, payload_len);
memset(payload, 0x00, leading_zeroes);
tvb_decrypted = tvb_new_child_real_data(tvb, payload, 128, 128);
add_new_data_source(pinfo, tvb_decrypted, "Decrypted Login Data");
if (tvb_get_guint8(tvb_decrypted, 0) != 0x00) {
expert_add_info(pinfo, ti, &ei_rsa_plaintext_no_leading_zero);
return offset;
}
offset = 1;
tvb_memcpy(tvb_decrypted, convo->xtea_key, 1, XTEA_KEY_LEN);
proto_tree_add_item(tibia_tree, hf_tibia_xtea_key, tvb_decrypted, 1, XTEA_KEY_LEN, ENC_NA);
offset += XTEA_KEY_LEN;
convo->xtea_framenum = pinfo->num;
}
if (!convo->loginserv_is_peer && convo->has.gmbyte) {
proto_tree_add_item(tibia_tree, hf_tibia_loginflags_gm, tvb_decrypted, offset, 1, ENC_NA);
offset += 1;
}
int len;
if (convo->has.session_key && !convo->loginserv_is_peer) {
/* OTServs I tested against use "$acc\n$pacc" as session key */
if (convo->session_key) {
proto_tree_add_item_ret_length(tibia_tree, hf_tibia_session_key, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, &len);
} else {
proto_tree_add_item_ret_string_and_length(tibia_tree, hf_tibia_session_key, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, wmem_file_scope(), &convo->session_key, &len);
}
offset += len;
} else if (convo->has.acc_name) {
if (convo->acc) {
proto_tree_add_item_ret_length(tibia_tree, hf_tibia_acc_name, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, &len);
} else {
proto_tree_add_item_ret_string_and_length(tibia_tree, hf_tibia_acc_name, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, wmem_file_scope(), &convo->acc, &len);
}
offset += len;
} else /* account number */ {
char *accnum = wmem_strdup_printf(pinfo->pool, "%" PRIu32, tvb_get_letohl(tvb_decrypted, offset));
proto_tree_add_string(tibia_tree, hf_tibia_acc_number, tvb_decrypted, offset, 4, accnum);
if (!convo->acc)
convo->acc = (guint8*)wmem_strdup(wmem_file_scope(), accnum);
offset += 4;
}
if (!convo->loginserv_is_peer) {
if (convo->char_name) {
proto_tree_add_item_ret_length(tibia_tree, hf_tibia_char_name, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, &len);
} else {
proto_tree_add_item_ret_string_and_length(tibia_tree, hf_tibia_char_name, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, wmem_file_scope(), &convo->char_name, &len);
}
offset += len;
}
if (!convo->has.session_key || convo->loginserv_is_peer) {
if (convo->pass) {
proto_tree_add_item_ret_length(tibia_tree, hf_tibia_acc_pass, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, &len);
} else {
proto_tree_add_item_ret_string_and_length(tibia_tree, hf_tibia_acc_pass, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN | convo->has.string_enc, wmem_file_scope(), &convo->pass, &len);
}
offset += len;
}
if (convo->loginserv_is_peer && convo->has.hwinfo) {
proto_item *item;
proto_tree *infotree, *subtree;
item = proto_tree_add_item(tibia_tree, hf_tibia_client_info, tvb_decrypted, offset, 47, ENC_NA);
infotree = proto_item_add_subtree(item, ett_client_info);
/* Subtree { */
guint locale_id;
const guint8 *locale_name;
item = proto_tree_add_item(infotree, hf_tibia_client_locale, tvb_decrypted, offset, 4, ENC_NA);
subtree = proto_item_add_subtree(item, ett_locale);
proto_tree_add_item_ret_uint(subtree, hf_tibia_client_locale_id, tvb_decrypted, offset, 1, ENC_NA, &locale_id);
offset += 1;
proto_tree_add_item_ret_string(subtree, hf_tibia_client_locale_name, tvb_decrypted, offset, 3, convo->has.string_enc|ENC_NA, pinfo->pool, &locale_name);
offset += 3;
proto_item_set_text(item, "Locale: %s (0x%X)", locale_name, locale_id);
/* } */
proto_tree_add_item(infotree, hf_tibia_client_ram, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_item(infotree, hf_tibia_unknown, tvb_decrypted, offset, 6, ENC_NA);
offset += 6;
/* Subtree { */
guint clock1, clock2;
const guint8 *cpu;
item = proto_tree_add_item(infotree, hf_tibia_client_cpu, tvb_decrypted, offset, 15, ENC_NA);
subtree = proto_item_add_subtree(item, ett_cpu);
proto_tree_add_item_ret_string(subtree, hf_tibia_client_cpu_name, tvb_decrypted, offset, 9, convo->has.string_enc|ENC_NA, pinfo->pool, &cpu);
offset += 9;
proto_tree_add_item(subtree, hf_tibia_unknown, tvb_decrypted, offset, 2, ENC_NA);
offset += 2;
proto_tree_add_item_ret_uint(subtree, hf_tibia_client_clock, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN, &clock1);
offset += 2;
proto_tree_add_item_ret_uint(subtree, hf_tibia_client_clock2, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN, &clock2);
offset += 2;
proto_item_set_text(item, "CPU: %s (%uMhz/%uMhz)", cpu, clock2, clock1);
/* } */
proto_tree_add_item(infotree, hf_tibia_unknown, tvb_decrypted, offset, 4, ENC_NA);
offset += 4;
proto_tree_add_item(infotree, hf_tibia_client_gpu, tvb_decrypted, offset, 9, convo->has.string_enc|ENC_NA);
offset += 9;
proto_tree_add_item(infotree, hf_tibia_client_vram, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
/* Subtree { */
guint x, y, hz;
item = proto_tree_add_item(infotree, hf_tibia_client_resolution, tvb_decrypted, offset, 5, ENC_NA);
subtree = proto_item_add_subtree(item, ett_resolution);
proto_tree_add_item_ret_uint(subtree, hf_tibia_client_resolution_x, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN, &x);
offset += 2;
proto_tree_add_item_ret_uint(subtree, hf_tibia_client_resolution_y, tvb_decrypted, offset, 2, ENC_LITTLE_ENDIAN, &y);
offset += 2;
proto_tree_add_item_ret_uint(subtree, hf_tibia_client_resolution_hz, tvb_decrypted, offset, 1, ENC_LITTLE_ENDIAN, &hz);
offset += 1;
proto_item_set_text(item, "Resolution: %ux%u @ %uHz", x, y, hz);
/* } */
} else if (!convo->loginserv_is_peer && convo->has.nonce) {
proto_tree_add_item(tibia_tree, hf_tibia_nonce, tvb_decrypted, offset, 5, ENC_NA);
offset += 5;
}
if (convo->has.rsa) {
/* Undecoded hardware info maybe */
call_data_dissector(tvb_new_subset_length(tvb_decrypted, offset, 128 - offset), pinfo, tibia_tree);
}
if (rsa1_end)
offset = rsa1_end;
if (offset != plen) {
/* TODO Extended GPU info and authentication token (RSA-encrypted again) */
call_data_dissector(tvb_new_subset_length(tvb, offset, plen - offset), pinfo, tibia_tree);
}
return plen;
}
static const value_string operating_systems[] = {
{ 2, "Windows" },
{ 0, NULL }
};
static const value_string speech_types[] = {
{ 0x1, "Say" },
{ 0x2, "Whisper" },
{ 0x3, "Yell" },
{ 0x7, "Public Channel" },
{ 0, NULL }
};
#if defined(HAVE_LIBGNUTLS)
static guint
rsakey_hash(gconstpointer _rsakey)
{
const struct rsakey *rsakey = (const struct rsakey *)_rsakey;
return add_address_to_hash(rsakey->port, &rsakey->addr);
}
static gboolean
rsakey_equal(gconstpointer _a, gconstpointer _b)
{
const struct rsakey *a = (const struct rsakey *)_a,
*b = (const struct rsakey *)_b;
return a->port == b->port && addresses_equal(&a->addr, &b->addr);
}
static void
rsakey_free(void *_rsakey)
{
struct rsakey *rsakey = (struct rsakey *)_rsakey;
/* gcry_sexp_release(rsakey->privkey); */ /* private key may be shared. */
free_address_wmem(NULL, &rsakey->addr);
g_free(rsakey);
}
static void
rsa_parse_uat(void)
{
g_hash_table_remove_all(rsakeys);
for (guint i = 0; i < nrsakeys; i++) {
struct rsakeys_assoc *uats = &rsakeylist_uats[i];
/* try to load keys file first */
FILE *fp = ws_fopen(uats->keyfile, "rb");
if (!fp) {
report_open_failure(uats->keyfile, errno, FALSE);
return;
}
gnutls_x509_privkey_t priv_key;
char *err = NULL;
if (*uats->password) {
priv_key = rsa_load_pkcs12(fp, uats->password, &err);
if (err) {
report_failure("%s\n", err);
g_free(err);
}
} else {
priv_key = rsa_load_pem_key(fp, &err);
if (err) {
report_failure("%s\n", err);
g_free(err);
}
}
fclose(fp);
if (!priv_key) {
report_failure("Can't load private key from %s\n", uats->keyfile);
return;
}
struct rsakey *entry;
guint32 ipaddr;
gcry_sexp_t private_key = rsa_privkey_to_sexp(priv_key, &err);
if (!private_key) {
g_free(err);
report_failure("Can't extract private key parameters for %s", uats->keyfile);
goto end;
}
entry = g_new(struct rsakey, 1);
ws_strtou16(uats->port, NULL, &entry->port);
ipaddr = ipv4tonl(uats->ipaddr);
alloc_address_wmem(NULL, &entry->addr, AT_IPv4, sizeof ipaddr, &ipaddr);
entry->privkey = private_key;
g_hash_table_insert(rsakeys, entry, entry->privkey);
end:
gnutls_x509_privkey_deinit(priv_key);
}
}
static void
rsakeys_free_cb(void *r)
{
struct rsakeys_assoc *h = (struct rsakeys_assoc *)r;
g_free(h->ipaddr);
g_free(h->port);
g_free(h->keyfile);
g_free(h->password);
}
static void*
rsakeys_copy_cb(void *dst_, const void *src_, size_t len _U_)
{
const struct rsakeys_assoc *src = (const struct rsakeys_assoc *)src_;
struct rsakeys_assoc *dst = (struct rsakeys_assoc *)dst_;
dst->ipaddr = g_strdup(src->ipaddr);
dst->port = g_strdup(src->port);
dst->keyfile = g_strdup(src->keyfile);
dst->password = g_strdup(src->password);
return dst;
}
static gboolean
rsakeys_uat_fld_ip_chk_cb(void* r _U_, const char* ipaddr, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err)
{
/* There are no Tibia IPv6 servers, although Tibia 11.0+'s Protocol in theory supports it */
if (ipaddr && g_hostname_is_ip_address(ipaddr) && strchr(ipaddr, '.')) {
*err = NULL;
return TRUE;
}
*err = ws_strdup_printf("No IPv4 address given.");
return FALSE;
}
static gboolean
rsakeys_uat_fld_port_chk_cb(void *_record _U_, const char *str, guint len _U_, const void *chk_data _U_, const void *fld_data _U_, char **err)
{
guint16 val;
if (!ws_strtou16(str, NULL, &val)) {
*err = g_strdup("Invalid argument. Expected a decimal between [0-65535]");
return FALSE;
}
*err = NULL;
return TRUE;
}
static gboolean
rsakeys_uat_fld_fileopen_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err)
{
if (p && *p) {
ws_statb64 st;
if (ws_stat64(p, &st) != 0) {
*err = ws_strdup_printf("File '%s' does not exist or access is denied.", p);
return FALSE;
}
} else {
*err = g_strdup("No filename given.");
return FALSE;
}
*err = NULL;
return TRUE;
}
static gboolean
rsakeys_uat_fld_password_chk_cb(void *r, const char *p, guint len _U_, const void *u1 _U_, const void *u2 _U_, char **err)
{
if (p && *p) {
struct rsakeys_assoc *f = (struct rsakeys_assoc *)r;
FILE *fp = ws_fopen(f->keyfile, "rb");
if (fp) {
char *msg = NULL;
gnutls_x509_privkey_t priv_key = rsa_load_pkcs12(fp, p, &msg);
if (!priv_key) {
fclose(fp);
*err = ws_strdup_printf("Could not load PKCS#12 key file: %s", msg);
g_free(msg);
return FALSE;
}
g_free(msg);
gnutls_x509_privkey_deinit(priv_key);
fclose(fp);
} else {
*err = ws_strdup_printf("Leave this field blank if the keyfile is not PKCS#12.");
return FALSE;
}
}
*err = NULL;
return TRUE;
}
#endif
static void
xtea_parse_uat(void)
{
g_hash_table_remove_all(xteakeys);
for (guint i = 0; i < nxteakeys; i++) {
guint key_idx = 0;
guint8 *key = (guint8*)g_malloc(XTEA_KEY_LEN);
for (const char *str = xteakeylist_uats[i].key; str[0] && str[1] && key_idx < XTEA_KEY_LEN; str++) {
if (g_ascii_ispunct(*str))
continue;
key[key_idx++] = (g_ascii_xdigit_value(str[0]) << 4)
+ g_ascii_xdigit_value(str[1]);
str++;
}
g_hash_table_insert(xteakeys, GUINT_TO_POINTER(xteakeylist_uats[i].framenum), key);
}
}
static void
xteakeys_free_cb(void *r)
{
struct xteakeys_assoc *h = (struct xteakeys_assoc *)r;
g_free(h->key);
}
static void*
xteakeys_copy_cb(void *dst_, const void *src_, size_t len _U_)
{
const struct xteakeys_assoc *src = (const struct xteakeys_assoc *)src_;
struct xteakeys_assoc *dst = (struct xteakeys_assoc *)dst_;
dst->framenum = src->framenum;
dst->key = g_strdup(src->key);
return dst;
}
static gboolean
xteakeys_uat_fld_key_chk_cb(void *r _U_, const char *key, guint len, const void *u1 _U_, const void *u2 _U_, char **err)
{
if (len >= XTEA_KEY_LEN*2) {
gsize i = 0;
do {
if (g_ascii_ispunct(*key))
continue;
if (!g_ascii_isxdigit(*key))
break;
i++;
} while (*++key);
if (*key == '\0' && i == 2*XTEA_KEY_LEN) {
*err = NULL;
return TRUE;
}
}
*err = ws_strdup_printf("XTEA keys are 32 character long hex strings.");
return FALSE;
}
void
proto_register_tibia(void)
{
static hf_register_info hf[] = {
{ &hf_tibia_len,
{ "Packet length", "tibia.len",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_adler32,
{ "Adler32 checksum", "tibia.checksum",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_adler32_status,
{ "Checksum status", "tibia.checksum.status",
FT_UINT8, BASE_NONE,
VALS(proto_checksum_vals), 0x0,
NULL, HFILL }
},
{ &hf_tibia_nonce,
{ "Game server nonce", "tibia.nonce",
FT_BYTES, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_os,
{ "Operating system", "tibia.os",
FT_UINT16, BASE_HEX,
VALS(operating_systems), 0x0,
NULL, HFILL }
},
{ &hf_tibia_proto_version,
{ "Protocol version", "tibia.version",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_version,
{ "Client version", "tibia.client_version",
FT_UINT32, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_file_versions,
{ "File versions", "tibia.version.files",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_file_version_spr,
{ "Tibia.spr version", "tibia.version.spr",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_file_version_dat,
{ "Tibia.dat version", "tibia.version.dat",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_file_version_pic,
{ "Tibia.pic version", "tibia.version.pic",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_content_revision,
{ "Content revision", "tibia.version.content",
FT_UINT16, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_undecoded_rsa_data,
{ "RSA-encrypted login data", "tibia.rsa_data",
FT_BYTES, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_undecoded_xtea_data,
{ "XTEA-encrypted game data", "tibia.xtea_data",
FT_BYTES, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_unknown,
{ "Unknown Data", "tibia.unknown",
FT_BYTES, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_xtea_key,
{ "Symmetric key (XTEA)", "tibia.xtea",
FT_BYTES, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_loginflags_gm,
{ "Gamemaster", "tibia.login.flags.gm",
FT_BOOLEAN, 8,
NULL, 0x1,
NULL, HFILL }
},
{ &hf_tibia_game_preview_state,
{ "Game Preview State", "tibia.login.flags.preview",
FT_BOOLEAN, 8,
NULL, 0x1,
NULL, HFILL }
},
{ &hf_tibia_char_cond,
{"Character Condition", "tibia.cond",
FT_UINT32, BASE_HEX,
NULL, 0,
NULL, HFILL}
},
{ &hf_tibia_char_cond_poisoned,
{ "Poisoned", "tibia.cond.poisoned",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_POISONED,
NULL, HFILL }
},
{ &hf_tibia_char_cond_burning,
{ "Burning", "tibia.cond.burning",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_BURNING,
NULL, HFILL }
},
{ &hf_tibia_char_cond_electrocuted,
{ "Electrocuted", "tibia.cond.electrocuted",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_ELECTROCUTED,
NULL, HFILL }
},
{ &hf_tibia_char_cond_drunk,
{ "Drunk", "tibia.cond.drunk",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_DRUNK,
NULL, HFILL }
},
{ &hf_tibia_char_cond_manashield, /* Utamo Vita */
{ "Mana Shield", "tibia.cond.manashield",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_MANASHIELD,
NULL, HFILL }
},
{ &hf_tibia_char_cond_paralyzed,
{ "Paralyzed", "tibia.cond.paralyzed",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_PARALYZED,
NULL, HFILL }
},
{ &hf_tibia_char_cond_haste,
{ "Haste", "tibia.cond.haste",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_HASTE,
NULL, HFILL }
},
{ &hf_tibia_char_cond_battle,
{ "Battle lock", "tibia.cond.battle",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_BATTLE,
NULL, HFILL }
},
{ &hf_tibia_char_cond_drowning,
{ "Drowning", "tibia.cond.drowning",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_DROWNING,
NULL, HFILL }
},
{ &hf_tibia_char_cond_freezing,
{ "Freezing", "tibia.cond.freezing",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_FREEZING,
NULL, HFILL }
},
{ &hf_tibia_char_cond_dazzled,
{ "Dazzled", "tibia.cond.dazzled",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_DAZZLED,
NULL, HFILL }
},
{ &hf_tibia_char_cond_cursed,
{ "Cursed", "tibia.cond.cursed",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_CURSED,
NULL, HFILL }
},
{ &hf_tibia_char_cond_buff, /* e.g. after casting Utura */
{ "Buff", "tibia.cond.buff",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_BUFF,
NULL, HFILL }
},
{ &hf_tibia_char_cond_pzblock, /* Blocked from entering PZ */
{ "Protection Zone Block", "tibia.cond.pzblock",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_PZBLOCK,
NULL, HFILL }
},
{ &hf_tibia_char_cond_pz,
{ "Protection Zone", "tibia.cond.pz",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_PZ,
NULL, HFILL }
},
{ &hf_tibia_char_cond_bleeding,
{ "Bleeding", "tibia.cond.bleeding",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_BLEEDING,
NULL, HFILL }
},
{ &hf_tibia_char_cond_hungry,
{ "Hungry", "tibia.cond.hungry",
FT_BOOLEAN, 32,
TFS(&tfs_yes_no), COND_HUNGRY,
NULL, HFILL }
},
{ &hf_tibia_acc_name,
{ "Account", "tibia.acc",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_acc_number,
{ "Account", "tibia.acc",
FT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_session_key,
{ "Session key", "tibia.session_key",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_char_name,
{ "Character name", "tibia.char",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_acc_pass,
{ "Password", "tibia.pass",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_char_name_convo,
{ "Character name", "tibia.char",
FT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_acc_name_convo,
{ "Account", "tibia.acc",
FT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_acc_pass_convo,
{ "Password", "tibia.pass",
FT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_session_key_convo,
{ "Session key", "tibia.session_key",
FT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_info,
{ "Client information", "tibia.client.info",
FT_NONE, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_locale,
{ "Locale", "tibia.client.locale",
FT_NONE, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_locale_id,
{ "Locale ID", "tibia.client.locale.id",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_locale_name,
{ "Locale", "tibia.client.locale.name",
FT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_ram,
{ "Total RAM", "tibia.client.ram",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_cpu,
{ "CPU", "tibia.client.cpu",
FT_NONE, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_cpu_name,
{ "CPU", "tibia.client.cpu.name",
FT_STRINGZ, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_clock,
{ "CPU clock", "tibia.client.cpu.clock",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_clock2,
{ "CPU clock2", "tibia.client.cpu.clock2",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_gpu,
{ "GPU", "tibia.client.gpu",
FT_STRINGZ, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_vram,
{ "Video RAM", "tibia.client.vram",
FT_UINT8, BASE_DEC|BASE_UNIT_STRING,
&mb_unit, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_resolution,
{ "Screen resolution", "tibia.client.resolution",
FT_NONE, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_resolution_x,
{ "Horizontal resolution", "tibia.client.resolution.x",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_resolution_y,
{ "Vertical resolution", "tibia.client.resolution.y",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_resolution_hz,
{ "Refresh rate", "tibia.client.resolution.hz",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_payload_len,
{ "Payload length", "tibia.payload.len",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_loginserv_command,
{ "Command", "tibia.cmd",
FT_UINT8, BASE_HEX,
VALS(from_loginserv_packet_types), 0x0,
NULL, HFILL }
},
{ &hf_tibia_gameserv_command,
{ "Command", "tibia.cmd",
FT_UINT8, BASE_HEX|BASE_EXT_STRING,
&from_gameserv_packet_types_ext, 0x0,
NULL, HFILL }
},
{ &hf_tibia_client_command,
{ "Command", "tibia.cmd",
FT_UINT8, BASE_HEX|BASE_EXT_STRING,
&from_client_packet_types_ext, 0x0,
NULL, HFILL }
},
{ &hf_tibia_motd,
{ "Message of the day", "tibia.motd",
FT_UINT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_dlg_error,
{ "Error message", "tibia.login.err",
FT_UINT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_dlg_info,
{ "Info message", "tibia.login.info",
FT_UINT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_charlist,
{ "Character list", "tibia.charlist",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_charlist_length,
{ "Character count", "tibia.charlist.count",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_charlist_entry_name,
{ "Character name", "tibia.charlist.name",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_charlist_entry_world,
{ "World", "tibia.charlist.world",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_charlist_entry_ip,
{ "IP", "tibia.charlist.ip",
FT_IPv4, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_charlist_entry_port,
{ "Port", "tibia.charlist.port",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_worldlist,
{ "World list", "tibia.worldlist",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_worldlist_entry_name,
{ "World", "tibia.worldlist.name",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_worldlist_length,
{ "World count", "tibia.worldlist.count",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_worldlist_entry_id,
{ "World ID", "tibia.worldlist.id",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_worldlist_entry_ip,
{ "IP", "tibia.worldlist.ip",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_worldlist_entry_port,
{ "Port", "tibia.worldlist.port",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_worldlist_entry_preview,
{ "Preview State", "tibia.worldlist.preview",
FT_BOOLEAN, 8,
NULL, 0x1,
NULL, HFILL }
},
{ &hf_tibia_pacc_days,
{ "Premium days left", "tibia.pacc",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_channel_id,
{ "Channel id", "tibia.channel.id",
FT_UINT16, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_channel_name,
{ "Channel name", "tibia.channel",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_speech_type,
{ "Type", "tibia.speechtype",
FT_UINT8, BASE_HEX,
VALS(speech_types), 0x0,
NULL, HFILL }
},
{ &hf_tibia_chat_msg,
{ "Message", "tibia.msg",
FT_UINT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_coords_x,
{ "X-Coordinate", "tibia.coord.x",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_coords_y,
{ "Y-Coordinate", "tibia.coords.y",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_coords_z,
{ "Z-Coordinate", "tibia.coords.z",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_coords,
{ "Coordinates", "tibia.coords",
FT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_stackpos,
{ "Stack position", "tibia.coords.stackpos",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
#if 0
{ &hf_tibia_item,
{ "Item ID", "tibia.item",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
#endif
{ &hf_tibia_container,
{ "Container index", "tibia.container",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_container_icon,
{ "Container icon", "tibia.container.icon",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_container_slot,
{ "Container slot", "tibia.container.slot",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_container_slots,
{ "Container slots", "tibia.container.slots",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_inventory,
{ "Inventory slot", "tibia.inventory",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_vip,
{ "VIP GUID", "tibia.vip",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_vip_online,
{ "Online", "tibia.vip.online",
FT_BOOLEAN, 8,
NULL, 0x1,
NULL, HFILL }
},
{ &hf_tibia_player,
{ "Player name", "tibia.player",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_creature,
{ "Creature", "tibia.creature",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_creature_health,
{ "Creature", "tibia.creature.health",
FT_UINT8, BASE_DEC|BASE_UNIT_STRING,
&units_percent, 0x0,
NULL, HFILL }
},
{ &hf_tibia_window,
{ "Window", "tibia.window",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_window_icon,
{ "Window Icon", "tibia.window.icon",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_window_textlen,
{ "Window Text Length", "tibia.window.text.len",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_window_text,
{ "Window Text", "tibia.window.text",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_squarecolor,
{ "Square Color", "tibia.creature.square",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_light_color,
{ "Light Color", "tibia.light.color",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_light_level,
{ "Light Level", "tibia.light.level",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_magic_effect_id,
{ "Magic Effect", "tibia.magic_effect",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_animated_text_color,
{ "Text Color", "tibia.animated_text.color",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_animated_text,
{ "Text", "tibia.animated_text",
FT_UINT16, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_textmsg_class,
{ "Text Message Class", "tibia.textmsg.class",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_textmsg,
{ "Text", "tibia.textmsg",
FT_UINT_STRING, BASE_NONE,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_projectile,
{ "Projectile", "tibia.projectile",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
{ &hf_tibia_walk_dir,
{ "Walk Direction", "tibia.walk_dir",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL }
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_tibia,
&ett_command,
&ett_file_versions,
&ett_client_info,
&ett_locale,
&ett_cpu,
&ett_resolution,
&ett_charlist,
&ett_char,
&ett_worldlist,
&ett_world,
&ett_coords,
&ett_char_cond,
};
static ei_register_info ei[] = {
{ &ei_xtea_len_toobig,
{ "tibia.error.xtea.length.toobig", PI_DECRYPTION, PI_ERROR,
"XTEA-encrypted length exceeds packet", EXPFILL }
},
{ &ei_adler32_checksum_bad, { "tibia.error.checksum_bad", PI_CHECKSUM, PI_ERROR,
"Bad checksum", EXPFILL }
},
{ &ei_rsa_plaintext_no_leading_zero,
{ "tibia.error.rsa", PI_DECRYPTION, PI_ERROR,
"First byte after RSA decryption must be zero", EXPFILL }
},
{ &ei_rsa_ciphertext_too_short,
{ "tibia.error.rsa.length.tooshort", PI_DECRYPTION, PI_ERROR,
"RSA-encrypted data is at least 128 byte long", EXPFILL }
},
{ &ei_rsa_decrypt_failed,
{ "tibia.error.rsa.failed", PI_DECRYPTION, PI_ERROR,
"Decrypting RSA block failed", EXPFILL }
},
};
proto_tibia = proto_register_protocol (
"Tibia Protocol", /* name */
"Tibia", /* short name */
"tibia" /* abbrev */
);
proto_register_field_array(proto_tibia, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_module_t *expert_tibia = expert_register_protocol(proto_tibia);
expert_register_field_array (expert_tibia, ei, array_length (ei));
module_t *tibia_module = prefs_register_protocol(proto_tibia, NULL);
prefs_register_bool_preference(tibia_module, "try_otserv_key", "Try OTServ's RSA key",
"Try the default RSA key in use by nearly all Open Tibia servers", &try_otserv_key);
prefs_register_bool_preference(tibia_module, "show_char_name", "Show character name for each packet",
"Shows active character for every packet", &show_char_name);
prefs_register_bool_preference(tibia_module, "show_acc_info", "Show account info for each packet",
"Shows account name/password or session key for every packet", &show_acc_info);
prefs_register_bool_preference(tibia_module, "show_xtea_key", "Show symmetric key used for each packet",
"Shows which XTEA key was applied for a packet", &show_xtea_key);
prefs_register_bool_preference(tibia_module, "dissect_game_commands", "Attempt dissection of game packet commands",
"Only decrypt packets and dissect login packets. Pass game commands to the data dissector", &dissect_game_commands);
prefs_register_bool_preference(tibia_module, "reassemble_tcp_segments",
"Reassemble Tibia packets spanning multiple TCP segments",
"Whether the Tibia dissector should reassemble packets spanning multiple TCP segments."
" To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
&reassemble_tcp_segments);
#ifdef HAVE_LIBGNUTLS
static uat_field_t rsakeylist_uats_flds[] = {
UAT_FLD_CSTRING_OTHER(rsakeylist_uats, ipaddr, "IP address", rsakeys_uat_fld_ip_chk_cb, "IPv4 address"),
UAT_FLD_CSTRING_OTHER(rsakeylist_uats, port, "Port", rsakeys_uat_fld_port_chk_cb, "Port Number"),
UAT_FLD_FILENAME_OTHER(rsakeylist_uats, keyfile, "Key File", rsakeys_uat_fld_fileopen_chk_cb, "Private keyfile."),
UAT_FLD_CSTRING_OTHER(rsakeylist_uats, password,"Password", rsakeys_uat_fld_password_chk_cb, "Password (for keyfile)"),
UAT_END_FIELDS
};
rsakeys_uat = uat_new("RSA Keys",
sizeof(struct rsakeys_assoc),
"tibia_rsa_keys", /* filename */
TRUE, /* from_profile */
&rsakeylist_uats, /* data_ptr */
&nrsakeys, /* numitems_ptr */
UAT_AFFECTS_DISSECTION,
NULL,
rsakeys_copy_cb,
NULL,
rsakeys_free_cb,
rsa_parse_uat,
NULL,
rsakeylist_uats_flds);
prefs_register_uat_preference(tibia_module, "rsakey_table",
"RSA keys list",
"A table of RSA keys for decrypting protocols newer than 7.61",
rsakeys_uat
);
rsakeys = g_hash_table_new_full(rsakey_hash, rsakey_equal, rsakey_free, NULL);
#endif
static uat_field_t xteakeylist_uats_flds[] = {
UAT_FLD_DEC(xteakeylist_uats, framenum, "Frame Number", "XTEA key"),
UAT_FLD_CSTRING_OTHER(xteakeylist_uats, key, "XTEA Key", xteakeys_uat_fld_key_chk_cb, "Symmetric (XTEA) key"),
UAT_END_FIELDS
};
xteakeys_uat = uat_new("XTEA Keys",
sizeof(struct xteakeys_assoc),
"tibia_xtea_keys", /* filename */
TRUE, /* from_profile */
&xteakeylist_uats, /* data_ptr */
&nxteakeys, /* numitems_ptr */
UAT_AFFECTS_DISSECTION,
NULL,
xteakeys_copy_cb,
NULL,
xteakeys_free_cb,
xtea_parse_uat,
NULL,
xteakeylist_uats_flds);
prefs_register_uat_preference(tibia_module, "xteakey_table",
"XTEA keys list",
"A table of XTEA keys for decrypting protocols newer than 7.61",
xteakeys_uat
);
xteakeys = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, g_free);
/* TODO best way to store this in source? */
const char sexp[] =
"(private-key (rsa"
"(n #9b646903b45b07ac956568d87353bd7165139dd7940703b03e6dd079399661b4a837aa60561d7ccb9452fa0080594909882ab5bca58a1a1b35f8b1059b72b1212611c6152ad3dbb3cfbee7adc142a75d3d75971509c321c5c24a5bd51fd460f01b4e15beb0de1930528a5d3f15c1e3cbf5c401d6777e10acaab33dbe8d5b7ff5#)"
"(e #010001#)"
"(d #428bd3b5346daf71a761106f71a43102f8c857d6549c54660bb6378b52b0261399de8ce648bac410e2ea4e0a1ced1fac2756331220ca6db7ad7b5d440b7828865856e7aa6d8f45837feee9b4a3a0aa21322a1e2ab75b1825e786cf81a28a8a09a1e28519db64ff9baf311e850c2bfa1fb7b08a056cc337f7df443761aefe8d81#)"
"(p #91b37307abe12c05a1b78754746cda444177a784b035cbb96c945affdc022d21da4bd25a4eae259638153e9d73c97c89092096a459e5d16bcadd07fa9d504885#)"
"(q #0111071b206bafb9c7a2287d7c8d17a42e32abee88dfe9520692b5439d9675817ff4f8c94a4abcd4b5f88e220f3a8658e39247a46c6983d85618fd891001a0acb1#)"
"(u #6b21cd5e373fe462a22061b44a41fd01738a3892e0bd8728dbb5b5d86e7675235a469fea3266412fe9a659f486144c1e593d56eb3f6cfc7b2edb83ba8e95403a#)"
"))";
gcry_error_t err = gcry_sexp_new(&otserv_key, sexp, 0, 1);
if (err)
report_failure("Loading OTServ RSA key failed: %s/%s\n", gcry_strerror(err), gcry_strsource(err));
}
static guint
get_dissect_tibia_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
{
return tvb_get_letohs(tvb, offset) + 2;
}
static int
dissect_tibia_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
static guint32 packet_num, fragment_num;
if (!packet_num) packet_num = pinfo->num;
if (packet_num != pinfo->num) {
fragment_num = 0;
packet_num = pinfo->num;
}
fragment_num++;
tcp_dissect_pdus(tvb, pinfo, tree, reassemble_tcp_segments, 2,
get_dissect_tibia_len, dissect_tibia, GUINT_TO_POINTER(fragment_num));
return tvb_reported_length(tvb);
}
void
proto_reg_handoff_tibia(void)
{
dissector_handle_t tibia_handle = create_dissector_handle(dissect_tibia_tcp, proto_tibia);
dissector_add_uint_range_with_preference("tcp.port", TIBIA_DEFAULT_TCP_PORT_RANGE, tibia_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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