84 lines
2.6 KiB
C++
84 lines
2.6 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_gamespy(lpi_data_t *data, lpi_module_t *mod UNUSED) {
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if (match_str_either(data, "\\sta"))
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return true;
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if (match_str_either(data, "\\inf"))
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return true;
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if (match_str_either(data, "\\gam"))
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return true;
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if (match_str_either(data, "\\hos"))
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return true;
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if (match_str_either(data, "\\bas"))
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return true;
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/* Gamespy request begins with 0xfe 0xfd FOO BAR. The response begins
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* with FOO BAR, where FOO and BAR are specific bytes */
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if (MATCH(data->payload[0], 0xfe, 0xfd, ANY, ANY) &&
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((data->payload[1] << 16) == (data->payload[0] & 0xffff0000)))
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return true;
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if (MATCH(data->payload[1], 0xfe, 0xfd, ANY, ANY) &&
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((data->payload[0] << 16) == (data->payload[1] & 0xffff0000)))
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return true;
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/* These packets have also been observed between gamespy servers
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* and for gamespy-powered games, e.g. GTA 4 */
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if (match_str_both(data, "\xfd\xfc\x1e\x66", "\xfd\xfc\x1e\x66"))
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return true;
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if (match_str_either(data, "\xfd\xfc\x1e\x66")) {
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if (data->payload_len[0] == 0)
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return true;
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if (data->payload_len[1] == 0)
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return true;
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}
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return false;
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}
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static lpi_module_t lpi_gamespy = {
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LPI_PROTO_UDP_GAMESPY,
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LPI_CATEGORY_GAMING,
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"GameSpy",
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3,
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match_gamespy
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};
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void register_gamespy(LPIModuleMap *mod_map) {
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register_protocol(&lpi_gamespy, mod_map);
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}
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