86 lines
2.6 KiB
C++
86 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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/* Have not tested against the application itself, as it is restricted
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* to certain German universities. There may be more variants of this
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* traffic.
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*/
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static inline bool match_bws_951(uint32_t payload, uint32_t len) {
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if (len == 4 && MATCH(payload, 0x00, 0x00, 0x09, 0x51))
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return true;
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return false;
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}
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static inline bool match_bws_other(uint32_t payload, uint32_t len) {
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uint32_t lastbyte = ntohl(payload) & 0x000000ff;
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if (len == 4 && MATCH(payload, 0x00, 0x00, 0x08, ANY)) {
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/* Byte 4 is always 0xfX, where X can be just about
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* anything.
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*/
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if ((lastbyte & 0xf0) == 0xf0)
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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_bwsyncandshare(lpi_data_t *data, lpi_module_t *mod UNUSED) {
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/* Port 60107? */
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if (match_bws_951(data->payload[0], data->payload_len[0])) {
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if (match_bws_other(data->payload[1], data->payload_len[1]))
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return true;
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}
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if (match_bws_951(data->payload[1], data->payload_len[1])) {
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if (match_bws_other(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_bwsyncandshare = {
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LPI_PROTO_BWSYNC,
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LPI_CATEGORY_CLOUD,
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"BWSyncAndShare",
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120,
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match_bwsyncandshare
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};
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void register_bwsyncandshare(LPIModuleMap *mod_map) {
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register_protocol(&lpi_bwsyncandshare, mod_map);
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}
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