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/*
* noe.c (Alcatel new office environment)
*
* Copyright (C) 2013 Remy Mudingay <mudingay@ill.fr>
* Copyright (C) 2011-22 - ntop.org
*
* 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_NOE
#include "ndpi_api.h"
static void ndpi_int_noe_add_connection(struct ndpi_detection_module_struct
*ndpi_struct, struct ndpi_flow_struct *flow)
{
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_NOE, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
NDPI_LOG_INFO(ndpi_struct, "found noe\n");
}
void ndpi_search_noe(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &ndpi_struct->packet;
NDPI_LOG_DBG(ndpi_struct, "search NOE\n");
if(packet->udp != NULL) {
NDPI_LOG_DBG2(ndpi_struct, "calculating dport over udp\n");
if (packet->payload_packet_len == 1 && ( packet->payload[0] == 0x05 || packet->payload[0] == 0x04 )) {
ndpi_int_noe_add_connection(ndpi_struct, flow);
return;
} else if((packet->payload_packet_len == 5 || packet->payload_packet_len == 12) &&
(packet->payload[0] == 0x07 ) &&
(packet->payload[1] == 0x00 ) &&
(packet->payload[2] != 0x00 ) &&
(packet->payload[3] == 0x00 )) {
ndpi_int_noe_add_connection(ndpi_struct, flow);
return;
} else if((packet->payload_packet_len >= 25) &&
(packet->payload[0] == 0x00 &&
packet->payload[1] == 0x06 &&
packet->payload[2] == 0x62 &&
packet->payload[3] == 0x6c)) {
ndpi_int_noe_add_connection(ndpi_struct, flow);
return;
}
}
NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
}
void init_noe_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
{
ndpi_set_bitmask_protocol_detection("NOE", ndpi_struct, detection_bitmask, *id,
NDPI_PROTOCOL_NOE,
ndpi_search_noe,
NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD,
SAVE_DETECTION_BITMASK_AS_UNKNOWN,
ADD_TO_DETECTION_BITMASK);
*id += 1;
}
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