mirror of
https://github.com/vel21ripn/nDPI.git
synced 2026-05-06 03:45:32 +00:00
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*
|
|
* kerberos.c
|
|
*
|
|
* Copyright (C) 2009-2011 by ipoque GmbH
|
|
* Copyright (C) 2011-15 - ntop.org
|
|
*
|
|
* This file is part of nDPI, an open source deep packet inspection
|
|
* library based on the OpenDPI and PACE technology by ipoque GmbH
|
|
*
|
|
* 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 files */
|
|
|
|
#include "ndpi_protocols.h"
|
|
#ifdef NDPI_PROTOCOL_KERBEROS
|
|
|
|
static void ndpi_int_kerberos_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
|
|
struct ndpi_flow_struct *flow)
|
|
{
|
|
ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_KERBEROS, NDPI_REAL_PROTOCOL);
|
|
}
|
|
|
|
|
|
void ndpi_search_kerberos(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
|
|
{
|
|
struct ndpi_packet_struct *packet = &flow->packet;
|
|
// struct ndpi_id_struct *src=ndpi_struct->src;
|
|
// struct ndpi_id_struct *dst=ndpi_struct->dst;
|
|
|
|
|
|
/* I have observed 0a,0c,0d,0e at packet->payload[19/21], maybe there are other possibilities */
|
|
if (packet->payload_packet_len >= 4 && ntohl(get_u_int32_t(packet->payload, 0)) == packet->payload_packet_len - 4) {
|
|
if (packet->payload_packet_len > 19 &&
|
|
packet->payload[14] == 0x05 &&
|
|
(packet->payload[19] == 0x0a ||
|
|
packet->payload[19] == 0x0c || packet->payload[19] == 0x0d || packet->payload[19] == 0x0e)) {
|
|
NDPI_LOG(NDPI_PROTOCOL_KERBEROS, ndpi_struct, NDPI_LOG_DEBUG, "found KERBEROS\n");
|
|
ndpi_int_kerberos_add_connection(ndpi_struct, flow);
|
|
return;
|
|
|
|
}
|
|
if (packet->payload_packet_len > 21 &&
|
|
packet->payload[16] == 0x05 &&
|
|
(packet->payload[21] == 0x0a ||
|
|
packet->payload[21] == 0x0c || packet->payload[21] == 0x0d || packet->payload[21] == 0x0e)) {
|
|
NDPI_LOG(NDPI_PROTOCOL_KERBEROS, ndpi_struct, NDPI_LOG_DEBUG, "found KERBEROS\n");
|
|
ndpi_int_kerberos_add_connection(ndpi_struct, flow);
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
NDPI_LOG(NDPI_PROTOCOL_KERBEROS, ndpi_struct, NDPI_LOG_DEBUG, "no KERBEROS detected.\n");
|
|
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_KERBEROS);
|
|
}
|
|
|
|
#endif
|