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
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* sonos.c
*
* Copyright (C) 2024 - 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_SONOS
#include "ndpi_api.h"
#include "ndpi_private.h"
static void ndpi_sonos_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) {
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_SONOS, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
NDPI_LOG_INFO(ndpi_struct, "Found Sonos flow\n");
}
void ndpi_search_sonos(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, "Searching Sonos\n");
if((!ndpi_is_public_ipv4(ntohl(packet->iph->daddr)))
&& ((ntohl(packet->iph->daddr) & 0xF0000000) != 0xE0000000 /* Not a multicast address */)) {
if(packet->payload_packet_len == 48) {
u_int16_t sonos_port = htons(12301);
if((packet->udp->dest == sonos_port) || (packet->udp->source == sonos_port)) {
ndpi_sonos_add_connection(ndpi_struct, flow);
}
} else {
u_int16_t sonos_port = htons(7080);
if((packet->udp->dest == sonos_port)
&& ((packet->payload_packet_len < 200)
|| ((packet->payload_packet_len > 1000) && (packet->payload_packet_len < 1100)))) {
ndpi_sonos_add_connection(ndpi_struct, flow);
}
}
}
NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
}
void init_sonos_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id)
{
ndpi_set_bitmask_protocol_detection("Sonos", ndpi_struct, *id,
NDPI_PROTOCOL_SONOS,
ndpi_search_sonos,
NDPI_SELECTION_BITMASK_PROTOCOL_UDP_WITH_PAYLOAD, /* Only IPv4 UDP traffic is expected. */
SAVE_DETECTION_BITMASK_AS_UNKNOWN,
ADD_TO_DETECTION_BITMASK);
*id += 1;
}
|