Rebase dev 2.0

decoders/lpi_plus/libprotoident/tcp/lpi_ethernetip.cc

@@ -0,0 +1,96 @@
+/*
+ *
+ * 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_command(uint32_t payload) {
+
+	// no op
+	if (MATCH(payload, 0x00, 0x00, ANY, ANY))
+		return true;
+	// list services
+	if (MATCH(payload, 0x04, 0x00, ANY, ANY))
+		return true;
+	// list identity
+	if (MATCH(payload, 0x63, 0x00, ANY, ANY))
+		return true;
+	// list interfaces
+	if (MATCH(payload, 0x64, 0x00, ANY, ANY))
+		return true;
+	// register session
+	if (MATCH(payload, 0x65, 0x00, 0x04, 0x00))
+		return true;
+	// un-register session
+	if (MATCH(payload, 0x66, 0x00, ANY, ANY))
+		return true;
+	// sendrrdata
+	if (MATCH(payload, 0x6f, 0x00, ANY, ANY))
+		return true;
+	// send unit data
+	if (MATCH(payload, 0x70, 0x00, ANY, ANY))
+		return true;
+	// indicate status
+	if (MATCH(payload, 0x72, 0x00, ANY, ANY))
+		return true;
+	// cancel
+	if (MATCH(payload, 0x73, 0x00, ANY, ANY))
+		return true;
+	// error
+	if (MATCH(payload, 0xff, 0xff, ANY, ANY))
+		return true;
+
+	return false;
+}
+
+static inline bool match_ethernetip(lpi_data_t *data, lpi_module_t *mod UNUSED) {
+
+	if (data->payload_len[0] < 24 || data->payload_len[1] < 24)
+		return false;
+
+	if (data->server_port != 44818 && data->client_port != 44818)
+		return false;
+
+	if (match_command(data->payload[0]) && match_command(data->payload[1]))
+		return true;
+
+	return false;
+}
+
+static lpi_module_t lpi_ethernetip = {
+	LPI_PROTO_ETHERNETIP,
+	LPI_CATEGORY_ICS,
+	"EtherNet/IP",
+	100,
+	match_ethernetip
+};
+
+void register_ethernetip(LPIModuleMap *mod_map) {
+	register_protocol(&lpi_ethernetip, mod_map);
+}