1 /*
2 * hpvirtgrp.c
3 *
4 * Copyright (C) 2012-21 - ntop.org
5 *
6 * This module 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 * This module 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 * 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_HPVIRTGRP
24
25 #include "ndpi_api.h"
26
27
ndpi_int_hpvirtgrp_add_connection(struct ndpi_detection_module_struct * ndpi_struct,struct ndpi_flow_struct * flow)28 static void ndpi_int_hpvirtgrp_add_connection(
29 struct ndpi_detection_module_struct *ndpi_struct,
30 struct ndpi_flow_struct *flow)
31 {
32 ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_HPVIRTGRP, NDPI_PROTOCOL_UNKNOWN);
33 }
34
ndpi_search_hpvirtgrp(struct ndpi_detection_module_struct * ndpi_struct,struct ndpi_flow_struct * flow)35 static void ndpi_search_hpvirtgrp(struct ndpi_detection_module_struct *ndpi_struct,
36 struct ndpi_flow_struct *flow)
37 {
38 struct ndpi_packet_struct * packet = &flow->packet;
39
40 NDPI_LOG_DBG(ndpi_struct, "search hpvirtgrp\n");
41
42 if (packet->tcp != NULL)
43 {
44 if (flow->packet_counter == 1 && packet->payload_packet_len >= 4 &&
45 packet->payload_packet_len == ntohs(*(u_int16_t*)&packet->payload[1]) &&
46 packet->payload[0] == 0x16 && packet->payload[3] == 0x00)
47 {
48 ndpi_int_hpvirtgrp_add_connection(ndpi_struct, flow);
49 return;
50 }
51 }
52
53 NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
54 }
55
56
57 /* ***************************************************************** */
58
init_hpvirtgrp_dissector(struct ndpi_detection_module_struct * ndpi_struct,u_int32_t * id,NDPI_PROTOCOL_BITMASK * detection_bitmask)59 void init_hpvirtgrp_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id,
60 NDPI_PROTOCOL_BITMASK *detection_bitmask)
61 {
62 ndpi_set_bitmask_protocol_detection("HP Virtual Machine Group Management",
63 ndpi_struct, detection_bitmask, *id,
64 NDPI_PROTOCOL_HPVIRTGRP,
65 ndpi_search_hpvirtgrp,
66 NDPI_SELECTION_BITMASK_PROTOCOL_TCP_WITH_PAYLOAD,
67 SAVE_DETECTION_BITMASK_AS_UNKNOWN,
68 ADD_TO_DETECTION_BITMASK);
69
70 *id += 1;
71 }
72