/src/ndpi/src/lib/protocols/atg.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * atg.c |
3 | | * |
4 | | * Copyright (C) 2024 - ntop.org |
5 | | * |
6 | | * nDPI is free software: you can redistribute it and/or modify |
7 | | * it under the terms of the GNU Lesser General Public License as published by |
8 | | * the Free Software Foundation, either version 3 of the License, or |
9 | | * (at your option) any later version. |
10 | | * |
11 | | * nDPI is distributed in the hope that it will be useful, |
12 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | | * GNU Lesser General Public License for more details. |
15 | | * |
16 | | * You should have received a copy of the GNU Lesser General Public License |
17 | | * along with nDPI. If not, see <http://www.gnu.org/licenses/>. |
18 | | * |
19 | | */ |
20 | | |
21 | | #include "ndpi_protocol_ids.h" |
22 | | |
23 | | #define NDPI_CURRENT_PROTO NDPI_PROTOCOL_ATG |
24 | | |
25 | | #include "ndpi_api.h" |
26 | | #include "ndpi_private.h" |
27 | | |
28 | | static void ndpi_int_atg_add_connection(struct ndpi_detection_module_struct |
29 | 0 | *ndpi_struct, struct ndpi_flow_struct *flow) { |
30 | 0 | ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_ATG, |
31 | 0 | NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI); |
32 | 0 | } |
33 | | |
34 | | |
35 | | static void ndpi_search_atg(struct ndpi_detection_module_struct *ndpi_struct, |
36 | 0 | struct ndpi_flow_struct *flow) { |
37 | 0 | struct ndpi_packet_struct *packet = &ndpi_struct->packet; |
38 | |
|
39 | 0 | NDPI_LOG_DBG(ndpi_struct, "search for ATG\n"); |
40 | |
|
41 | 0 | if(packet->payload_packet_len >= 8) { |
42 | 0 | u_int16_t atg_port = ntohs(10001); |
43 | |
|
44 | 0 | if((packet->tcp->source == atg_port) || (packet->tcp->dest == atg_port)) { |
45 | 0 | if(packet->payload[0] == 0x01 && |
46 | 0 | (packet->payload[1] == 0x49 || packet->payload[1] == 0x69 || packet->payload[1] == 0x53 || packet->payload[1] == 0x73 ) && |
47 | 0 | memcmp(&packet->payload[packet->payload_packet_len - 2], "\r\n", 2) == 0) { |
48 | 0 | NDPI_LOG_INFO(ndpi_struct, "found atg\n"); |
49 | 0 | ndpi_int_atg_add_connection(ndpi_struct, flow); |
50 | 0 | return; |
51 | 0 | } |
52 | 0 | } |
53 | 0 | } |
54 | | |
55 | 0 | NDPI_EXCLUDE_DISSECTOR(ndpi_struct, flow); |
56 | 0 | } |
57 | | |
58 | 1 | void init_atg_dissector(struct ndpi_detection_module_struct *ndpi_struct) { |
59 | 1 | register_dissector("ATG", ndpi_struct, |
60 | 1 | ndpi_search_atg, |
61 | 1 | NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION, |
62 | 1 | 1, NDPI_PROTOCOL_ATG); |
63 | 1 | } |