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/*
* iso9506-1-mms.c
*
* ISO 9506-1:2003 Manufacturing Message Specification
*
* Copyright (C) 2023 - ntop.org
* Copyright (C) 2023 - V.G <v.gavrilov@securitycode.ru>
*
* This file is part of nDPI, an open source deep packet inspection
* library based on the OpenDPI and PACE technology by ipoque GmbH
*
* nDPI 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.
*
* nDPI 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 nDPI. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ndpi_protocol_ids.h"
#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_ISO9506_1_MMS
#include "ndpi_api.h"
#include "ndpi_private.h"
static void ndpi_int_iso9506_1_mms_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
NDPI_LOG_INFO(ndpi_struct, "found ISO 9506-1 MMS\n");
ndpi_set_detected_protocol(ndpi_struct, flow,
NDPI_PROTOCOL_ISO9506_1_MMS, NDPI_PROTOCOL_UNKNOWN,
NDPI_CONFIDENCE_DPI);
}
static void ndpi_search_iso9506_1_mms(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct const * const packet = &ndpi_struct->packet;
NDPI_LOG_DBG(ndpi_struct, "search ISO 9506-1 MMS\n");
if ((packet->payload_packet_len > 60) && tpkt_verify_hdr(packet))
{
if (current_pkt_from_client_to_server(ndpi_struct, flow)) {
/* Check COTP and ISO 8327-1 headers */
if ((packet->payload[4] == 2) && (packet->payload[5] == 0xF0) &&
(packet->payload[6] == 0x80) && (packet->payload[7] - 13 <= 1) &&
(packet->payload[8] == (packet->payload_packet_len - 9)))
{
/* Search for a MMS signature in initiate request from client */
if ((get_u_int16_t(packet->payload, packet->payload_packet_len-37) == le16toh(0x280)) ||
(get_u_int16_t(packet->payload, packet->payload_packet_len-38) == le16toh(0x380)) ||
(get_u_int16_t(packet->payload, packet->payload_packet_len-40) == le16toh(0x280)))
{
ndpi_int_iso9506_1_mms_add_connection(ndpi_struct, flow);
return;
}
}
}
}
if (flow->packet_direction_counter[packet->packet_direction] > 2) {
NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
}
}
void init_iso9506_1_mms_dissector(struct ndpi_detection_module_struct *ndpi_struct,
u_int32_t *id)
{
ndpi_set_bitmask_protocol_detection("ISO9506-1-MMS", ndpi_struct, *id,
NDPI_PROTOCOL_ISO9506_1_MMS,
ndpi_search_iso9506_1_mms,
NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
SAVE_DETECTION_BITMASK_AS_UNKNOWN,
ADD_TO_DETECTION_BITMASK);
*id += 1;
}
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