✨ feat(integration decoders): http and glimpse_detector

compile pass, todo test

decoders/glimpse_detector/libprotoident/tcp/lpi_ldap.cc

@@ -0,0 +1,97 @@
+/*
+ *
+ * Copyright (c) 2011-2016 The University of Waikato, Hamilton, New Zealand.
+ * All rights reserved.
+ *
+ * This file is part of libprotoident.
+ *
+ * This code has been developed by the University of Waikato WAND
+ * research group. For further information please see http://www.wand.net.nz/
+ *
+ * libprotoident 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.
+ *
+ * libprotoident 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ */
+
+#include <string.h>
+
+#include "libprotoident.h"
+#include "proto_manager.h"
+#include "proto_common.h"
+
+static inline bool match_ldap_payload(uint32_t payload, uint32_t len) {
+	
+	uint8_t *byte = ((uint8_t *)&payload);
+	uint16_t struct_len = 0;
+
+	if (len == 0)
+		return true;
+
+	byte ++;
+	
+	if (((*byte) & 0x80) == 0x80) {
+		uint8_t bytes_required = ((*byte) & 0x7f);
+		if (bytes_required > 2 || bytes_required == 0)
+			return false;
+
+		if (bytes_required == 1) {
+			if (len > 255)
+				return false;
+			byte ++;
+			struct_len = 3 + ((uint8_t)(*byte));
+			if (!MATCH(payload, 0x30, ANY, ANY, 0x02))
+				return false;
+		} else {
+			struct_len = 4 + ntohs(*((uint16_t *)(byte + 1)));
+			if (!MATCH(payload, 0x30, ANY, ANY, ANY))
+				return false;
+		}
+	} else {
+		if (!MATCH(payload, 0x30, ANY, 0x02, 0x01))
+			return false;
+		if (len > 255)
+			return false;
+		struct_len = (*byte) + 2;
+	}
+			
+	if (struct_len != len)
+		return false;	
+	
+
+	return true;
+
+}
+
+static inline bool match_ldap(lpi_data_t *data, lpi_module_t *mod UNUSED) {
+
+	if (!match_ldap_payload(data->payload[0], data->payload_len[0]))
+		return false;
+	if (!match_ldap_payload(data->payload[1], data->payload_len[1]))
+		return false;
+
+	return true;
+}
+
+static lpi_module_t lpi_ldap = {
+	LPI_PROTO_LDAP,
+	LPI_CATEGORY_SERVICES,
+	"LDAP",
+	3,
+	match_ldap
+};
+
+void register_ldap(LPIModuleMap *mod_map) {
+	register_protocol(&lpi_ldap, mod_map);
+}
+