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| -rw-r--r-- | src/lib/protocols/ubntac2.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/lib/protocols/ubntac2.c b/src/lib/protocols/ubntac2.c new file mode 100644 index 000000000..75580fd15 --- /dev/null +++ b/src/lib/protocols/ubntac2.c @@ -0,0 +1,73 @@ +/* + * dhcp.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 "ndpi_protocols.h" + +#ifdef NDPI_PROTOCOL_UBNTAC2 + +static void ndpi_int_ubntac2_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) +{ + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_UBNTAC2, NDPI_PROTOCOL_UNKNOWN); +} + + +void ndpi_search_ubntac2(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; + + /* this detection also works for asymmetric dhcp traffic */ + + NDPI_LOG(NDPI_PROTOCOL_UBNTAC2, ndpi_struct, NDPI_LOG_TRACE, "UBNTAC2 detection... plen:%i %i:%i\n", packet->payload_packet_len, ntohs(packet->udp->source), ntohs(packet->udp->dest)); + + /*check standard DHCP 0.0.0.0:68 -> 255.255.255.255:67 */ + if (packet->payload_packet_len >= 135 && + (packet->udp->source == htons(10001) || packet->udp->dest == htons(10001)) && + memcmp(&(packet->payload[36]), "UBNT", 4) == 0) { + + NDPI_LOG(NDPI_PROTOCOL_UBNTAC2, ndpi_struct, NDPI_LOG_DEBUG, "UBNT AirControl 2 request\n"); + + ndpi_int_ubntac2_add_connection(ndpi_struct, flow); + return; + } + + NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_UBNTAC2); +} + + +void init_ubntac2_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask) +{ + ndpi_set_bitmask_protocol_detection("UBNTAC2", ndpi_struct, detection_bitmask, *id, + NDPI_PROTOCOL_UBNTAC2, + ndpi_search_ubntac2, + NDPI_SELECTION_BITMASK_PROTOCOL_UDP_WITH_PAYLOAD, + SAVE_DETECTION_BITMASK_AS_UNKNOWN, + ADD_TO_DETECTION_BITMASK); + *id += 1; +} + +#endif |