82 lines
2.4 KiB
C++
82 lines
2.4 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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/* This seems to be a Pando thing - I've found libtorrent handshakes within
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* full payload captures of these packets that refer to Pando peer exchange.
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*
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* It may be a wider Bittorrent thing, but I haven't found any evidence to
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* suggest that any clients other than Pando use it */
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static inline bool match_pando_udp(lpi_data_t *data, lpi_module_t *mod UNUSED) {
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if (match_str_both(data, "\x00\x00\x00\x09", "\x00\x00\x00\x09"))
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return true;
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if (MATCH(data->payload[0], 0x00, 0x00, 0x00, 0x09) &&
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data->payload_len[1] == 0)
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return true;
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if (MATCH(data->payload[1], 0x00, 0x00, 0x00, 0x09) &&
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data->payload_len[0] == 0)
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return true;
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/* This is something I've observed going to hosts belonging to
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* Pando */
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if (match_str_both(data, "UDPA", "UDPR"))
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return true;
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if (match_str_both(data, "UDPA", "UDPE"))
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return true;
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if (match_str_either(data, "UDPA")) {
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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_pando_udp = {
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LPI_PROTO_UDP_PANDO,
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LPI_CATEGORY_P2P,
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"Pando_UDP",
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10,
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match_pando_udp
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};
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void register_pando_udp(LPIModuleMap *mod_map) {
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register_protocol(&lpi_pando_udp, mod_map);
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}
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