mirror of
https://github.com/vel21ripn/nDPI.git
synced 2026-05-05 10:41:40 +00:00
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/*
|
|
* lotus_notes.c
|
|
*
|
|
* Copyright (C) 2012-15 - ntop.org
|
|
*
|
|
* 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_api.h"
|
|
|
|
#ifdef NDPI_PROTOCOL_LOTUS_NOTES
|
|
|
|
/* ************************************ */
|
|
|
|
static void ndpi_check_lotus_notes(struct ndpi_detection_module_struct *ndpi_struct,
|
|
struct ndpi_flow_struct *flow)
|
|
{
|
|
struct ndpi_packet_struct *packet = &flow->packet;
|
|
// const u_int8_t *packet_payload = packet->payload;
|
|
u_int32_t payload_len = packet->payload_packet_len;
|
|
|
|
if(packet->tcp != NULL) {
|
|
flow->l4.tcp.lotus_notes_packet_id++;
|
|
|
|
#if 0
|
|
printf("[lotus_notes_packet_id: %u][len=%u][%02X %02X %02X %02X %02X %02X %02X %02X]\n",
|
|
flow->l4.tcp.lotus_notes_packet_id, payload_len,
|
|
packet->payload[6] & 0xFF,
|
|
packet->payload[7] & 0xFF,
|
|
packet->payload[8] & 0xFF,
|
|
packet->payload[9] & 0xFF,
|
|
packet->payload[10] & 0xFF,
|
|
packet->payload[11] & 0xFF,
|
|
packet->payload[12] & 0xFF,
|
|
packet->payload[13] & 0xFF
|
|
);
|
|
#endif
|
|
|
|
if((flow->l4.tcp.lotus_notes_packet_id == 1)
|
|
/* We have seen the 3-way handshake */
|
|
&& flow->l4.tcp.seen_syn
|
|
&& flow->l4.tcp.seen_syn_ack
|
|
&& flow->l4.tcp.seen_ack) {
|
|
if(payload_len > 16) {
|
|
char lotus_notes_header[] = { 0x00, 0x00, 0x02, 0x00, 0x00, 0x40, 0x02, 0x0F };
|
|
|
|
if(memcmp(&packet->payload[6], lotus_notes_header, sizeof(lotus_notes_header)) == 0) {
|
|
NDPI_LOG(NDPI_PROTOCOL_LOTUS_NOTES, ndpi_struct, NDPI_LOG_DEBUG, "Found lotus_notes.\n");
|
|
ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_LOTUS_NOTES, NDPI_REAL_PROTOCOL);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_LOTUS_NOTES);
|
|
} else if(flow->l4.tcp.lotus_notes_packet_id > 3)
|
|
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_LOTUS_NOTES);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
void ndpi_search_lotus_notes(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
|
|
{
|
|
struct ndpi_packet_struct *packet = &flow->packet;
|
|
|
|
NDPI_LOG(NDPI_PROTOCOL_LOTUS_NOTES, ndpi_struct, NDPI_LOG_DEBUG, "lotus_notes detection...\n");
|
|
|
|
/* skip marked packets */
|
|
if(packet->detected_protocol_stack[0] != NDPI_PROTOCOL_LOTUS_NOTES)
|
|
ndpi_check_lotus_notes(ndpi_struct, flow);
|
|
}
|
|
|
|
#endif
|