142 lines
4.0 KiB
C++
142 lines
4.0 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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/* DOTA 2 -- a popular multiplayer battleground game */
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static inline bool match_dota2_20(uint32_t payload, uint32_t len) {
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if (len != 20)
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return false;
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if (MATCHSTR(payload, "\xff\xff\xff\xff"))
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return true;
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return false;
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}
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static inline bool match_dota2_30(uint32_t payload, uint32_t len) {
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if (len != 30)
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return false;
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if (MATCHSTR(payload, "\xff\xff\xff\xff"))
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return true;
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return false;
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}
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static inline bool match_dota2_0100(uint32_t payload, uint32_t len) {
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if (len == 216 && MATCH(payload, 0x01, 0x00, 0x73, 0x64))
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return true;
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if (len == 416 && MATCH(payload, 0x01, 0x00, 0x73, 0x64))
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return true;
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return false;
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}
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static inline bool match_dota2_0212(uint32_t payload, uint32_t len) {
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if (MATCH(payload, 0x02, 0x12, ANY, ANY))
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return true;
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return false;
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}
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static inline bool match_dota2_512(uint32_t payload, uint32_t len) {
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if (len == 512) {
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if (MATCH(payload, 0x20, 0x0e, 0x00, 0x0d))
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return true;
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if (MATCH(payload, 0x20, 0x10, 0x00, 0x0d))
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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 inline bool match_dota2_24(uint32_t payload, uint32_t len) {
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if (len == 24 && MATCH(payload, 0x21, 0x0d, ANY, ANY))
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return true;
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if (len == 26 && MATCH(payload, 0x21, 0x0d, ANY, ANY))
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return true;
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return false;
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}
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static inline bool match_dota2(lpi_data_t *data, lpi_module_t *mod UNUSED) {
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if (match_dota2_20(data->payload[0], data->payload_len[0])) {
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if (match_dota2_30(data->payload[1], data->payload_len[1]))
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return true;
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}
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if (match_dota2_20(data->payload[1], data->payload_len[1])) {
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if (match_dota2_30(data->payload[0], data->payload_len[0]))
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return true;
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}
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if (match_dota2_0100(data->payload[0], data->payload_len[0])) {
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if (match_dota2_0212(data->payload[1], data->payload_len[1]))
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return true;
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}
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if (match_dota2_0100(data->payload[1], data->payload_len[1])) {
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if (match_dota2_0212(data->payload[0], data->payload_len[0]))
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return true;
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}
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if (match_dota2_512(data->payload[0], data->payload_len[0])) {
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if (match_dota2_24(data->payload[1], data->payload_len[1]))
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return true;
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}
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if (match_dota2_512(data->payload[1], data->payload_len[1])) {
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if (match_dota2_24(data->payload[0], data->payload_len[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_dota2 = {
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LPI_PROTO_UDP_DOTA2,
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LPI_CATEGORY_GAMING,
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"DOTA2",
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10,
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match_dota2
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};
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void register_dota2(LPIModuleMap *mod_map) {
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register_protocol(&lpi_dota2, mod_map);
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}
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