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stellar-stellar/decoders/glimpse_detector/libprotoident/udp/lpi_turbovpn.cc
2024-08-21 09:38:18 +08:00

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C++

/*
*
* Copyright (c) 2011-2016 The University of Waikato, Hamilton, New Zealand.
* All rights reserved.
*
* This file is part of libprotoident.
*
* This code has been developed by the University of Waikato WAND
* research group. For further information please see http://www.wand.net.nz/
*
* libprotoident is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* libprotoident is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#include <string.h>
#include "libprotoident.h"
#include "proto_manager.h"
#include "proto_common.h"
static inline bool match_gene(uint32_t payload, uint32_t len) {
/* Range of packet sizes, but always fairly small */
if (MATCH(payload, 'G', 'E', 'N', 'E')) {
if (len >= 15 && len <= 50)
return true;
}
return false;
}
static inline bool match_turbovpn(lpi_data_t *data, lpi_module_t *mod UNUSED) {
if (match_gene(data->payload[0], data->payload_len[0])) {
if (match_gene(data->payload[1], data->payload_len[1]))
return true;
}
return false;
}
static lpi_module_t lpi_turbovpn = {
LPI_PROTO_UDP_TURBOVPN,
LPI_CATEGORY_TUNNELLING,
"TurboVPN",
10,
match_turbovpn
};
void register_turbovpn(LPIModuleMap *mod_map) {
register_protocol(&lpi_turbovpn, mod_map);
}