Initial import from SVN

1 files changed, 82 insertions, 0 deletions

diff --git a/src/lib/protocols/fasttrack.c b/src/lib/protocols/fasttrack.c
new file mode 100644
index 000000000..0e0ff1988
--- /dev/null
+++ b/src/lib/protocols/fasttrack.c
@@ -0,0 +1,82 @@
+/*
+ * fasttrack.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 "ndpi_protocols.h"
+
+#ifdef NDPI_PROTOCOL_FASTTRACK
+
+
+
+static void ndpi_int_fasttrack_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+	ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_FASTTRACK, NDPI_CORRELATED_PROTOCOL);
+}
+
+
+void ndpi_search_fasttrack_tcp(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;
+
+	if (packet->payload_packet_len > 6 && ntohs(get_u_int16_t(packet->payload, packet->payload_packet_len - 2)) == 0x0d0a) {
+		NDPI_LOG(NDPI_PROTOCOL_FASTTRACK, ndpi_struct, NDPI_LOG_TRACE, "detected 0d0a at the end of the packet.\n");
+
+		if (memcmp(packet->payload, "GIVE ", 5) == 0 && packet->payload_packet_len >= 8) {
+			u_int16_t i;
+			for (i = 5; i < (packet->payload_packet_len - 2); i++) {
+				// make shure that the argument to GIVE is numeric
+				if (!(packet->payload[i] >= '0' && packet->payload[i] <= '9')) {
+					goto exclude_fasttrack;
+				}
+			}
+
+			NDPI_LOG(NDPI_PROTOCOL_FASTTRACK, ndpi_struct, NDPI_LOG_TRACE, "FASTTRACK GIVE DETECTED\n");
+			ndpi_int_fasttrack_add_connection(ndpi_struct, flow);
+			return;
+		}
+
+		if (packet->payload_packet_len > 50 && memcmp(packet->payload, "GET /", 5) == 0) {
+			u_int8_t a = 0;
+			NDPI_LOG(NDPI_PROTOCOL_FASTTRACK, ndpi_struct, NDPI_LOG_TRACE, "detected GET /. \n");
+			ndpi_parse_packet_line_info(ndpi_struct, flow);
+			for (a = 0; a < packet->parsed_lines; a++) {
+				if ((packet->line[a].len > 17 && memcmp(packet->line[a].ptr, "X-Kazaa-Username: ", 18) == 0)
+					|| (packet->line[a].len > 23 && memcmp(packet->line[a].ptr, "User-Agent: PeerEnabler/", 24) == 0)) {
+					NDPI_LOG(NDPI_PROTOCOL_FASTTRACK, ndpi_struct, NDPI_LOG_TRACE,
+							"detected X-Kazaa-Username: || User-Agent: PeerEnabler/\n");
+					ndpi_int_fasttrack_add_connection(ndpi_struct, flow);
+					return;
+				}
+			}
+		}
+	}
+
+  exclude_fasttrack:
+	NDPI_LOG(NDPI_PROTOCOL_FASTTRACK, ndpi_struct, NDPI_LOG_TRACE, "fasttrack/kazaa excluded.\n");
+	NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_FASTTRACK);
+}
+#endif