96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
/*
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*
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* Copyright (c) 2011-2016 The University of Waikato, Hamilton, New Zealand.
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* All rights reserved.
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*
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* This file is part of libprotoident.
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*
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* This code has been developed by the University of Waikato WAND
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* research group. For further information please see http://www.wand.net.nz/
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*
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* libprotoident is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* libprotoident is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#include <string.h>
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#include "libprotoident.h"
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#include "proto_manager.h"
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#include "proto_common.h"
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static inline bool match_ts3_req(uint32_t payload, uint32_t len) {
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if (MATCH(payload, 'T', 'S', '3', 'I'))
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return true;
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return false;
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}
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static inline bool match_ts3_resp(uint32_t payload, uint32_t len,
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uint16_t porta, uint16_t portb) {
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if (len == 0)
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return true;
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if (MATCH(payload, 'T', 'S', '3', 'I'))
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return true;
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/* Seem to get some encrypted responses, but the only ones I've
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* seen so far are either 181 or 182 bytes. Enforce the expected
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* TeamSpeak port in this case, just to be safe.
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*/
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if ((len >= 180 && len <= 182) && (porta == 9987 || portb == 9987))
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return true;
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return false;
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}
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static inline bool match_teamspeak(lpi_data_t *data, lpi_module_t *mod UNUSED) {
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/* Teamspeak version 2 */
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if (match_str_both(data, "\xf4\xbe\x03\x00", "\xf4\xbe\x03\x00"))
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return true;
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/* Teamspeak version 3 */
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if (match_ts3_req(data->payload[0], data->payload_len[0])) {
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if (match_ts3_resp(data->payload[1], data->payload_len[1],
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data->server_port, data->client_port))
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return true;
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}
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if (match_ts3_req(data->payload[1], data->payload_len[1])) {
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if (match_ts3_resp(data->payload[0], data->payload_len[0],
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data->server_port, data->client_port))
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return true;
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}
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/* Not sure what this is, but it goes to a teamspeak.org server */
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if (match_str_either(data, "\x07Pri"))
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return true;
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return false;
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}
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static lpi_module_t lpi_teamspeak = {
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LPI_PROTO_UDP_TEAMSPEAK,
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LPI_CATEGORY_VOIP,
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"TeamSpeak",
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3,
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match_teamspeak
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};
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void register_teamspeak(LPIModuleMap *mod_map) {
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register_protocol(&lpi_teamspeak, mod_map);
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}
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