/src/ndpi/src/lib/protocols/sonos.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * sonos.c |
3 | | * |
4 | | * Copyright (C) 2024 - ntop.org |
5 | | * |
6 | | * This file is part of nDPI, an open source deep packet inspection |
7 | | * library based on the OpenDPI and PACE technology by ipoque GmbH |
8 | | * |
9 | | * nDPI is free software: you can redistribute it and/or modify |
10 | | * it under the terms of the GNU Lesser General Public License as published by |
11 | | * the Free Software Foundation, either version 3 of the License, or |
12 | | * (at your option) any later version. |
13 | | * |
14 | | * nDPI is distributed in the hope that it will be useful, |
15 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | | * GNU Lesser General Public License for more details. |
18 | | * |
19 | | * You should have received a copy of the GNU Lesser General Public License |
20 | | * along with nDPI. If not, see <http://www.gnu.org/licenses/>. |
21 | | * |
22 | | */ |
23 | | |
24 | | #include "ndpi_protocol_ids.h" |
25 | | |
26 | | #define NDPI_CURRENT_PROTO NDPI_PROTOCOL_SONOS |
27 | | |
28 | | #include "ndpi_api.h" |
29 | | #include "ndpi_private.h" |
30 | | |
31 | 0 | static void ndpi_sonos_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { |
32 | 0 | ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_SONOS, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI); |
33 | 0 | NDPI_LOG_INFO(ndpi_struct, "Found Sonos flow\n"); |
34 | 0 | } |
35 | | |
36 | 663 | void ndpi_search_sonos(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { |
37 | 663 | struct ndpi_packet_struct *packet = &ndpi_struct->packet; |
38 | | |
39 | 663 | NDPI_LOG_DBG(ndpi_struct, "Searching Sonos\n"); |
40 | | |
41 | 663 | if((!ndpi_is_public_ipv4(ntohl(packet->iph->daddr))) |
42 | 663 | && ((ntohl(packet->iph->daddr) & 0xF0000000) != 0xE0000000 /* Not a multicast address */)) { |
43 | 17 | if(packet->payload_packet_len == 48) { |
44 | 0 | u_int16_t sonos_port = htons(12301); |
45 | | |
46 | 0 | if((packet->udp->dest == sonos_port) || (packet->udp->source == sonos_port)) { |
47 | 0 | ndpi_sonos_add_connection(ndpi_struct, flow); |
48 | 0 | } |
49 | 17 | } else { |
50 | 17 | u_int16_t sonos_port = htons(7080); |
51 | | |
52 | 17 | if((packet->udp->dest == sonos_port) |
53 | 17 | && ((packet->payload_packet_len < 200) |
54 | 0 | || ((packet->payload_packet_len > 1000) && (packet->payload_packet_len < 1100)))) { |
55 | 0 | ndpi_sonos_add_connection(ndpi_struct, flow); |
56 | 0 | } |
57 | 17 | } |
58 | 17 | } |
59 | | |
60 | 663 | NDPI_EXCLUDE_DISSECTOR(ndpi_struct, flow); |
61 | 663 | } |
62 | | |
63 | | |
64 | | void init_sonos_dissector(struct ndpi_detection_module_struct *ndpi_struct) |
65 | 8.20k | { |
66 | 8.20k | register_dissector("Sonos", ndpi_struct, |
67 | 8.20k | ndpi_search_sonos, |
68 | 8.20k | NDPI_SELECTION_BITMASK_PROTOCOL_UDP_WITH_PAYLOAD, /* Only IPv4 UDP traffic is expected. */ |
69 | 8.20k | 1, NDPI_PROTOCOL_SONOS); |
70 | 8.20k | } |