/src/ndpi/src/lib/protocols/mysql.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * mysql.c |
3 | | * |
4 | | * Copyright (C) 2009-11 - ipoque GmbH |
5 | | * Copyright (C) 2011-25 - ntop.org |
6 | | * Copyright (C) 2024 - V.G <v.gavrilov@securitycode.ru> |
7 | | * |
8 | | * This file is part of nDPI, an open source deep packet inspection |
9 | | * library based on the OpenDPI and PACE technology by ipoque GmbH |
10 | | * |
11 | | * nDPI is free software: you can redistribute it and/or modify |
12 | | * it under the terms of the GNU Lesser General Public License as published by |
13 | | * the Free Software Foundation, either version 3 of the License, or |
14 | | * (at your option) any later version. |
15 | | * |
16 | | * nDPI is distributed in the hope that it will be useful, |
17 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
19 | | * GNU Lesser General Public License for more details. |
20 | | * |
21 | | * You should have received a copy of the GNU Lesser General Public License |
22 | | * along with nDPI. If not, see <http://www.gnu.org/licenses/>. |
23 | | * |
24 | | */ |
25 | | |
26 | | |
27 | | #include "ndpi_protocol_ids.h" |
28 | | |
29 | | #define NDPI_CURRENT_PROTO NDPI_PROTOCOL_MYSQL |
30 | | |
31 | | #include "ndpi_api.h" |
32 | | #include "ndpi_private.h" |
33 | | |
34 | | static void ndpi_search_mysql_tcp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) |
35 | 0 | { |
36 | 0 | struct ndpi_packet_struct const * const packet = &ndpi_struct->packet; |
37 | |
|
38 | 0 | NDPI_LOG_DBG(ndpi_struct, "search MySQL\n"); |
39 | |
|
40 | 0 | if(packet->payload_packet_len > 70 && packet->payload_packet_len < 120) { |
41 | 0 | u_int32_t length = (packet->payload[2] << 16) + (packet->payload[1] << 8) + packet->payload[0]; |
42 | |
|
43 | 0 | if ((u_int32_t)(packet->payload_packet_len-4) == length && |
44 | 0 | packet->payload[4] == 0x0A && ((memcmp(&packet->payload[5], "5.5.5-", 6) == 0) || |
45 | 0 | (packet->payload[5] > 0x33 && packet->payload[5] < 0x39))) |
46 | 0 | { |
47 | 0 | if ((memcmp(&packet->payload[packet->payload_packet_len-10], "_password", 9) == 0) || |
48 | 0 | (memcmp(&packet->payload[packet->payload_packet_len-10], "_kerberos", 9) == 0) || |
49 | 0 | (memcmp(&packet->payload[packet->payload_packet_len-9], "_windows", 8) == 0) || |
50 | 0 | (memcmp(&packet->payload[packet->payload_packet_len-8], "_simple", 7) == 0) || |
51 | 0 | (memcmp(&packet->payload[packet->payload_packet_len-8], "_gssapi", 7) == 0) || |
52 | 0 | (memcmp(&packet->payload[packet->payload_packet_len-5], "_pam", 4) == 0)) |
53 | 0 | { |
54 | 0 | NDPI_LOG_INFO(ndpi_struct, "found MySQL\n"); |
55 | 0 | ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MYSQL, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI); |
56 | 0 | return; |
57 | 0 | } |
58 | 0 | } |
59 | 0 | } |
60 | | |
61 | 0 | NDPI_EXCLUDE_DISSECTOR(ndpi_struct, flow); |
62 | 0 | } |
63 | | |
64 | | |
65 | | void init_mysql_dissector(struct ndpi_detection_module_struct *ndpi_struct) |
66 | 1 | { |
67 | 1 | register_dissector("MySQL", ndpi_struct, |
68 | 1 | ndpi_search_mysql_tcp, |
69 | 1 | NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION, |
70 | 1 | 1, NDPI_PROTOCOL_MYSQL); |
71 | 1 | } |