✨ feat(integration decoders): http and glimpse_detector

compile pass, todo test

decoders/glimpse_detector/libprotoident/tcp/lpi_invalid.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_invalid(lpi_data_t *data, lpi_module_t *mod UNUSED) {
+	
+	/* I'm using invalid as a category for flows where both halves of
+         * the connection are clearly speaking different protocols,
+         * e.g. trying to do HTTP tunnelling via an SMTP server
+         */
+
+        /* XXX Bittorrent-related stuff is covered in 
+         * match_invalid_bittorrent() */
+
+        /* SOCKSv4 via FTP or SMTP 
+         *
+         * The last two octets '\x00\x50' is the port number - in this case
+         * I've hard-coded it to be 80 */
+        if (match_str_both(data, "220 ", "\x04\x01\x00\x50"))
+                return true;
+
+        /* SOCKSv5 via FTP or SMTP */
+        if (match_str_both(data, "220 ", "\x05\x01\x00\x00"))
+                return true;
+
+        /* HTTP tunnelling via FTP or SMTP */
+        if (match_str_both(data, "220 ", "CONN"))
+                return true;
+        if (match_str_both(data, "450 ", "CONN"))
+                return true;
+
+        /* Trying to send HTTP commands to FTP or SMTP servers */
+        if (match_str_both(data, "220 ", "GET "))
+                return true;
+        if (match_str_both(data, "450 ", "GET "))
+                return true;
+
+        /* Trying to send HTTP commands to an SVN server */
+        if (match_str_both(data, "( su", "GET "))
+                return true;
+
+        /* People running an HTTP server on the MS SQL server port */
+        if (match_tds_request(data->payload[0], data->payload_len[0])) {
+                if (MATCHSTR(data->payload[1], "HTTP"))
+                        return true;
+        }
+        if (match_tds_request(data->payload[1], data->payload_len[1])) {
+                if (MATCHSTR(data->payload[0], "HTTP"))
+                        return true;
+        }
+
+
+	return false;
+}
+
+static lpi_module_t lpi_invalid = {
+	LPI_PROTO_INVALID,
+	LPI_CATEGORY_MIXED,
+	"Invalid",
+	200,	/* Very low priority, but not as low as mystery protos */
+	match_invalid
+};
+
+void register_invalid(LPIModuleMap *mod_map) {
+	register_protocol(&lpi_invalid, mod_map);
+}
+