✨ feat(integration decoders): http and glimpse_detector

compile pass, todo test

decoders/glimpse_detector/libprotoident/tcp/lpi_smb.cc

@@ -0,0 +1,95 @@
+/*
+ *
+ * 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_smb_payload(uint32_t payload, uint32_t len) {
+
+        if (len == 0)
+                return true;
+
+        if (match_payload_length(payload, len))
+                return true;
+
+        /* Some stupid systems send the NetBIOS header separately, which
+         * makes this a lot harder to detect :( 
+         *
+         * Instead, look for common payload sizes. */
+
+        if (MATCH(payload, 0x00, 0x00, 0x00, 0x85))
+                return true;
+
+        /* Also, sometimes we just forget the NetBIOS header, or the 
+         * connection fails before it is retransmitted */
+        if (MATCH(payload, 0xff, 'S', 'M', 'B'))
+                return true;
+
+        return false;
+
+}
+
+
+static inline bool match_smb(lpi_data_t *data, lpi_module_t *mod UNUSED) {
+
+	/* SMB is often prepended with a NetBIOS session service header.
+         * It's easiest for us to treat it as a four byte length field (it
+         * is actually a bit more complicated than that, but all other fields
+         * tend to be zero anyway)
+         *
+         * More details at http://lists.samba.org/archive/samba-technical/2003-January/026283.html
+         */
+
+	/* Only match on port 445 to avoid clashing with other 4 byte length
+	 * fields */
+        if (data->server_port != 445 && data->client_port != 445)
+                return false;
+
+        if (!match_smb_payload(data->payload[0], data->payload_len[0]))
+                return false;
+
+        if (!match_smb_payload(data->payload[1], data->payload_len[1]))
+                return false;
+        return true;
+
+
+}
+
+static lpi_module_t lpi_smb = {
+	LPI_PROTO_SMB,
+	LPI_CATEGORY_FILES,
+	"SMB",
+	3,
+	match_smb
+};
+
+void register_smb(LPIModuleMap *mod_map) {
+	register_protocol(&lpi_smb, mod_map);
+}
+