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stellar-stellar/decoders/glimpse_detector/libprotoident/tcp/lpi_cvs.cc

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/*
*
* 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_cvs_request(uint32_t data, uint32_t len) {
if (MATCHSTR(data, "BEGI"))
return true;
return false;
}
static inline bool match_cvs_response(uint32_t data, uint32_t len) {
if (len == 0)
return true;
/* "I LOVE YOU" = auth succeeded */
if (MATCHSTR(data, "I LO"))
return true;
/* "I HATE YOU" = auth failed */
if (MATCHSTR(data, "I HA"))
return true;
/* "E <msg>" = a message */
if (MATCH(data, 'E', ' ', ANY, ANY))
return true;
/* error = an error */
if (MATCHSTR(data, "erro"))
return true;
return false;
}
static inline bool match_cvs(lpi_data_t *data, lpi_module_t *mod UNUSED) {
if (match_cvs_request(data->payload[0], data->payload_len[0]) &&
match_cvs_response(data->payload[1], data->payload_len[1]))
return true;
if (match_cvs_request(data->payload[1], data->payload_len[1]) &&
match_cvs_response(data->payload[0], data->payload_len[0]))
return true;
return false;
}
static lpi_module_t lpi_cvs = {
LPI_PROTO_CVS,
LPI_CATEGORY_RCS,
"CVS",
3,
match_cvs
};
void register_cvs(LPIModuleMap *mod_map) {
register_protocol(&lpi_cvs, mod_map);
}