Initial import from SVN

1 files changed, 101 insertions, 0 deletions

diff --git a/src/lib/protocols/ldap.c b/src/lib/protocols/ldap.c
new file mode 100644
index 000000000..44313156e
--- /dev/null
+++ b/src/lib/protocols/ldap.c
@@ -0,0 +1,101 @@
+/*
+ * ldap.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_LDAP
+
+static void ndpi_int_ldap_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
+					 struct ndpi_flow_struct *flow)
+{
+  ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_LDAP, NDPI_REAL_PROTOCOL);
+}
+
+void ndpi_search_ldap(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;
+
+//  u_int16_t dport;
+
+
+
+	NDPI_LOG(NDPI_PROTOCOL_LDAP, ndpi_struct, NDPI_LOG_DEBUG, "search ldap\n");
+
+
+	if (packet->payload_packet_len >= 14 && packet->payload[0] == 0x30) {
+
+		// simple type
+		if (packet->payload[1] == 0x0c && packet->payload_packet_len == 14 &&
+			packet->payload[packet->payload_packet_len - 1] == 0x00 && packet->payload[2] == 0x02) {
+
+			if (packet->payload[3] == 0x01 &&
+				(packet->payload[5] == 0x60 || packet->payload[5] == 0x61) && packet->payload[6] == 0x07) {
+				NDPI_LOG(NDPI_PROTOCOL_LDAP, ndpi_struct, NDPI_LOG_DEBUG, "found ldap simple type 1\n");
+				ndpi_int_ldap_add_connection(ndpi_struct, flow);
+				return;
+			}
+
+			if (packet->payload[3] == 0x02 &&
+				(packet->payload[6] == 0x60 || packet->payload[6] == 0x61) && packet->payload[7] == 0x07) {
+				NDPI_LOG(NDPI_PROTOCOL_LDAP, ndpi_struct, NDPI_LOG_DEBUG, "found ldap simple type 2\n");
+				ndpi_int_ldap_add_connection(ndpi_struct, flow);
+				return;
+			}
+		}
+		// normal type
+		if (packet->payload[1] == 0x84 && packet->payload_packet_len >= 0x84 &&
+			packet->payload[2] == 0x00 && packet->payload[3] == 0x00 && packet->payload[6] == 0x02) {
+
+			if (packet->payload[7] == 0x01 &&
+				(packet->payload[9] == 0x60 || packet->payload[9] == 0x61 || packet->payload[9] == 0x63 ||
+				 packet->payload[9] == 0x64) && packet->payload[10] == 0x84) {
+
+				NDPI_LOG(NDPI_PROTOCOL_LDAP, ndpi_struct, NDPI_LOG_DEBUG, "found ldap type 1\n");
+				ndpi_int_ldap_add_connection(ndpi_struct, flow);
+				return;
+			}
+
+			if (packet->payload[7] == 0x02 &&
+				(packet->payload[10] == 0x60 || packet->payload[10] == 0x61 || packet->payload[10] == 0x63 ||
+				 packet->payload[10] == 0x64) && packet->payload[11] == 0x84) {
+
+				NDPI_LOG(NDPI_PROTOCOL_LDAP, ndpi_struct, NDPI_LOG_DEBUG, "found ldap type 2\n");
+				ndpi_int_ldap_add_connection(ndpi_struct, flow);
+				return;
+			}
+		}
+	}
+
+
+	NDPI_LOG(NDPI_PROTOCOL_LDAP, ndpi_struct, NDPI_LOG_DEBUG, "ldap excluded.\n");
+	NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_LDAP);
+}
+
+#endif