Added AMQP (Advanced Message Queueing Protocol)

1 files changed, 83 insertions, 0 deletions

diff --git a/src/lib/protocols/amqp.c b/src/lib/protocols/amqp.c
new file mode 100644
index 000000000..72bbc0a38
--- /dev/null
+++ b/src/lib/protocols/amqp.c
@@ -0,0 +1,83 @@
+/*
+ * amqp.c
+ *
+ * Copyright (C) 2011-17 - 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_protocols.h"
+#ifdef NDPI_PROTOCOL_AMQP
+
+PACK_ON
+struct amqp_header {
+	u_int8_t ptype;
+	u_int16_t channel;
+	u_int32_t length;
+	u_int16_t class_id, method;
+} PACK_OFF;
+
+static void ndpi_int_amqp_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
+					 struct ndpi_flow_struct *flow/* , */
+					 /* ndpi_protocol_type_t protocol_type */) {
+	ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_AMQP, NDPI_PROTOCOL_UNKNOWN);
+}
+
+void ndpi_search_amqp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) {
+	struct ndpi_packet_struct *packet = &flow->packet;
+
+	NDPI_LOG(NDPI_PROTOCOL_AMQP, ndpi_struct, NDPI_LOG_DEBUG, "search amqp.  \n");
+
+	if (packet->tcp != NULL) {
+		if(packet->payload_packet_len > sizeof(struct amqp_header)) {
+			struct amqp_header *h = (struct amqp_header*)packet->payload;
+
+			if(h->ptype <= 3) {
+				u_int32_t length = htonl(h->length);
+
+				if(((length+8) >= packet->payload_packet_len)
+				   && (length < 32768) /* Upper bound */) {					
+					u_int16_t class_id = htons(h->class_id);
+				
+					if((class_id >= 10) /* Connection */
+					   && (class_id <= 110) /* Tunnel */) {
+						u_int16_t method = htons(h->method);
+
+						if(method <= 120 /* Method basic NACK */) {
+							NDPI_LOG(NDPI_PROTOCOL_AMQP, ndpi_struct, NDPI_LOG_DEBUG, "found amqp over tcp.  \n");
+							ndpi_int_amqp_add_connection(ndpi_struct, flow);
+							return;
+						}
+					}
+				}
+			}
+		}
+	}
+}
+
+
+void init_amqp_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask) {
+	ndpi_set_bitmask_protocol_detection("AMQP", ndpi_struct, detection_bitmask, *id,
+					    NDPI_PROTOCOL_AMQP,
+					    ndpi_search_amqp,
+					    NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD,
+					    SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+					    ADD_TO_DETECTION_BITMASK);
+
+	*id += 1;
+}
+
+#endif