Initial import from SVN

1 files changed, 91 insertions, 0 deletions

diff --git a/src/lib/protocols/quake.c b/src/lib/protocols/quake.c
new file mode 100644
index 000000000..18a027970
--- /dev/null
+++ b/src/lib/protocols/quake.c
@@ -0,0 +1,91 @@
+/*
+ * quake.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_api.h"
+
+#ifdef NDPI_PROTOCOL_QUAKE
+
+static void ndpi_int_quake_add_connection(struct ndpi_detection_module_struct
+											*ndpi_struct, struct ndpi_flow_struct *flow)
+{
+	ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_QUAKE, NDPI_REAL_PROTOCOL);
+}
+
+void ndpi_search_quake(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 == 14
+		 && get_u_int16_t(packet->payload, 0) == 0xffff && memcmp(&packet->payload[2], "getInfo", 7) == 0)
+		|| (packet->payload_packet_len == 17
+			&& get_u_int16_t(packet->payload, 0) == 0xffff && memcmp(&packet->payload[2], "challenge", 9) == 0)
+		|| (packet->payload_packet_len > 20
+			&& packet->payload_packet_len < 30
+			&& get_u_int16_t(packet->payload, 0) == 0xffff && memcmp(&packet->payload[2], "getServers", 10) == 0)) {
+		NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake IV detected.\n");
+		ndpi_int_quake_add_connection(ndpi_struct, flow);
+		return;
+	}
+
+	/* Quake III/Quake Live */
+	if (packet->payload_packet_len == 15 && get_u_int32_t(packet->payload, 0) == 0xffffffff
+		&& memcmp(&packet->payload[4], "getinfo", NDPI_STATICSTRING_LEN("getinfo")) == 0) {
+		NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake III Arena/Quake Live detected.\n");
+		ndpi_int_quake_add_connection(ndpi_struct, flow);
+		return;
+	}
+	if (packet->payload_packet_len == 16 && get_u_int32_t(packet->payload, 0) == 0xffffffff
+		&& memcmp(&packet->payload[4], "getchallenge", NDPI_STATICSTRING_LEN("getchallenge")) == 0) {
+		NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake III Arena/Quake Live detected.\n");
+		ndpi_int_quake_add_connection(ndpi_struct, flow);
+		return;
+	}
+	if (packet->payload_packet_len > 20 && packet->payload_packet_len < 30
+		&& get_u_int32_t(packet->payload, 0) == 0xffffffff
+		&& memcmp(&packet->payload[4], "getservers", NDPI_STATICSTRING_LEN("getservers")) == 0) {
+		NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake III Arena/Quake Live detected.\n");
+		ndpi_int_quake_add_connection(ndpi_struct, flow);
+		return;
+	}
+
+
+
+	/* ports for startup packet:
+	   Quake I        26000 (starts with 0x8000)
+	   Quake II       27910
+	   Quake III      27960 (increases with each player)
+	   Quake IV       27650
+	   Quake World    27500
+	   Quake Wars     ?????
+	 */
+
+	NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake excluded.\n");
+	NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_QUAKE);
+}
+
+#endif