104 lines
3.0 KiB
C++
104 lines
3.0 KiB
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/>.
|
|
*
|
|
*
|
|
* 255.255.255.255 192.168.10.105 44818 1136 17 1226525494.728 1226525530.720 0 888 00000000 .... 0 63000000 c... 24
|
|
* 192.168.10.105 192.168.10.120 1136 44818 17 1226525494.730 1226525530.722 2775 0 63003300 c.3. 75 00000000 .... 0
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "libprotoident.h"
|
|
#include "proto_manager.h"
|
|
#include "proto_common.h"
|
|
|
|
static inline bool match_command(uint32_t payload, uint16_t payload_len) {
|
|
|
|
// the second uint16 of the ethernetip header is payload the length
|
|
// but not including the header size of 24 bytes
|
|
uint16_t len = ntohs((uint16_t)ntohl(payload)) + 24;
|
|
|
|
if (payload_len != len)
|
|
return false;
|
|
|
|
// no op
|
|
if (MATCH(payload, 0x00, 0x00, ANY, ANY))
|
|
return true;
|
|
// list services
|
|
if (MATCH(payload, 0x04, 0x00, ANY, ANY))
|
|
return true;
|
|
// list identity
|
|
if (MATCH(payload, 0x63, 0x00, ANY, ANY))
|
|
return true;
|
|
// list interfaces
|
|
if (MATCH(payload, 0x64, 0x00, ANY, ANY))
|
|
return true;
|
|
// register session
|
|
if (MATCH(payload, 0x65, 0x00, 0x04, 0x00))
|
|
return true;
|
|
// un-register session
|
|
if (MATCH(payload, 0x66, 0x00, ANY, ANY))
|
|
return true;
|
|
// sendrrdata
|
|
if (MATCH(payload, 0x6f, 0x00, ANY, ANY))
|
|
return true;
|
|
// send unit data
|
|
if (MATCH(payload, 0x70, 0x00, ANY, ANY))
|
|
return true;
|
|
// indicate status
|
|
if (MATCH(payload, 0x72, 0x00, ANY, ANY))
|
|
return true;
|
|
// cancel
|
|
if (MATCH(payload, 0x73, 0x00, ANY, ANY))
|
|
return true;
|
|
// error
|
|
if (MATCH(payload, 0xff, 0xff, ANY, ANY))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static inline bool match_ethernetip_udp(lpi_data_t *data, lpi_module_t *mod UNUSED) {
|
|
|
|
if (data->server_port != 44818 && data->client_port != 44818)
|
|
return false;
|
|
|
|
if (match_command(data->payload[0], data->payload_len[0]) ||
|
|
match_command(data->payload[1], data->payload_len[1]))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static lpi_module_t lpi_ethernetip_udp = {
|
|
LPI_PROTO_UDP_ETHERNETIP,
|
|
LPI_CATEGORY_ICS,
|
|
"EtherNet/IP_UDP",
|
|
100,
|
|
match_ethernetip_udp
|
|
};
|
|
|
|
void register_ethernetip_udp(LPIModuleMap *mod_map) {
|
|
register_protocol(&lpi_ethernetip_udp, mod_map);
|
|
}
|