Add Ubiquity AirControl 2 protocol detection

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