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
50
51
52
53
54
55
56
57
58
59
60
|
/*
* whatsapp.c
*
* Copyright (C) 2018 - ntop.org
*
* nDPI is free software: you can zmqtribute 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"
#ifdef NDPI_PROTOCOL_WHATSAPP
#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_WHATSAPP
#include "ndpi_api.h"
void ndpi_search_whatsapp(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
struct ndpi_packet_struct *packet = &flow->packet;
u_int8_t whatsapp_sequence[] = {
0x45, 0x44, 0x0, 0x01, 0x0, 0x0, 0x02, 0x08,
0x0, 0x57, 0x41, 0x02, 0x0, 0x0, 0x0
};
NDPI_LOG_DBG(ndpi_struct, "search WhatsApp\n");
if((packet->payload_packet_len > 240)
&& (memcmp(packet->payload, whatsapp_sequence, sizeof(whatsapp_sequence)) == 0)) {
NDPI_LOG_INFO(ndpi_struct, "found WhatsApp\n");
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_WHATSAPP, NDPI_PROTOCOL_UNKNOWN);
} else
NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
}
void init_whatsapp_dissector(struct ndpi_detection_module_struct *ndpi_struct,
u_int32_t *id,
NDPI_PROTOCOL_BITMASK *detection_bitmask) {
ndpi_set_bitmask_protocol_detection("WhatsApp", ndpi_struct, detection_bitmask, *id,
NDPI_PROTOCOL_WHATSAPP,
ndpi_search_whatsapp,
NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
SAVE_DETECTION_BITMASK_AS_UNKNOWN,
ADD_TO_DETECTION_BITMASK);
*id += 1;
}
#endif
|