1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/*
* megaco.c
*
* Copyright (C) 2014 by Gianluca Costa http://www.capanalysis.net
* Copyright (C) 2012-15 - ntop.org
*
* This module 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.
*
* This module 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.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "ndpi_api.h"
#ifdef NDPI_PROTOCOL_MEGACO
void ndpi_search_megaco(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
NDPI_LOG(NDPI_PROTOCOL_MEGACO, ndpi_struct, NDPI_LOG_DEBUG, "search for MEGACO.\n");
if(packet->udp != NULL) {
if((packet->payload_packet_len > 4 && packet->payload[0] == '!' && packet->payload[1] == '/' &&
packet->payload[2] == '1' && packet->payload[3] == ' ' && packet->payload[4] == '[')
|| (packet->payload_packet_len > 9 && packet->payload[0] == 'M' && packet->payload[1] == 'E' &&
packet->payload[2] == 'G' && packet->payload[3] == 'A' && packet->payload[4] == 'C' &&
packet->payload[5] == 'O' && packet->payload[6] == '/' &&
packet->payload[7] == '1' && packet->payload[8] == ' ' && packet->payload[9] == '[')) {
NDPI_LOG(NDPI_PROTOCOL_MEGACO, ndpi_struct, NDPI_LOG_DEBUG, "found MEGACO.\n");
ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_MEGACO, NDPI_REAL_PROTOCOL);
return;
}
}
NDPI_LOG(NDPI_PROTOCOL_MEGACO, ndpi_struct, NDPI_LOG_DEBUG, "exclude MEGACO.\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_MEGACO);
}
#endif
|