diff options
Diffstat (limited to 'src/lib/protocols/dcerpc.c')
-rw-r--r-- | src/lib/protocols/dcerpc.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/lib/protocols/dcerpc.c b/src/lib/protocols/dcerpc.c new file mode 100644 index 000000000..5879aec6d --- /dev/null +++ b/src/lib/protocols/dcerpc.c @@ -0,0 +1,54 @@ +/* + * dcerpc.c + * + * Copyright (C) 2011-13 by 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 "ndpi_api.h" + +#ifdef NDPI_PROTOCOL_DCERPC + +static void ndpi_int_dcerpc_add_connection(struct ndpi_detection_module_struct + *ndpi_struct, struct ndpi_flow_struct *flow) +{ + ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_DCERPC, NDPI_REAL_PROTOCOL); +} + +void ndpi_search_dcerpc(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) +{ + struct ndpi_packet_struct *packet = &flow->packet; + + + if((packet->tcp != NULL) + && (packet->payload_packet_len > 64) + && ((ntohs(packet->tcp->source) == 135) || (ntohs(packet->tcp->dest) == 135)) + && (packet->payload[0] == 0x05) /* version 5 */ + && (packet->payload[2] < 16) /* Packet type */ + ) { + NDPI_LOG(NDPI_PROTOCOL_DCERPC, ndpi_struct, NDPI_LOG_DEBUG, "DCERPC match\n"); + ndpi_int_dcerpc_add_connection(ndpi_struct, flow); + return; + } + + NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_DCERPC); +} + +#endif |