Initial import from SVN

1 files changed, 85 insertions, 0 deletions

diff --git a/src/lib/protocols/crossfire.c b/src/lib/protocols/crossfire.c
new file mode 100644
index 000000000..cb5b3520f
--- /dev/null
+++ b/src/lib/protocols/crossfire.c
@@ -0,0 +1,85 @@
+/*
+ * crossfire.c
+ *
+ * Copyright (C) 2012-15 - 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 files */
+#include "ndpi_protocols.h"
+#ifdef NDPI_PROTOCOL_CROSSFIRE
+
+
+static void ndpi_int_crossfire_add_connection(struct ndpi_detection_module_struct *ndpi_struct, 
+					      struct ndpi_flow_struct *flow, ndpi_protocol_type_t protocol_type)
+{
+
+	ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_CROSSFIRE, protocol_type);
+}
+
+void ndpi_search_crossfire_tcp_udp(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;
+
+	NDPI_LOG(NDPI_PROTOCOL_CROSSFIRE, ndpi_struct, NDPI_LOG_DEBUG, "search crossfire.\n");
+
+
+	if (packet->udp != 0) {
+		if (packet->payload_packet_len == 25 && get_u_int32_t(packet->payload, 0) == ntohl(0xc7d91999)
+			&& get_u_int16_t(packet->payload, 4) == ntohs(0x0200)
+			&& get_u_int16_t(packet->payload, 22) == ntohs(0x7d00)
+			) {
+			NDPI_LOG(NDPI_PROTOCOL_CROSSFIRE, ndpi_struct, NDPI_LOG_DEBUG, "Crossfire: found udp packet.\n");
+			ndpi_int_crossfire_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
+			return;
+		}
+
+	} else if (packet->tcp != 0) {
+
+		if (packet->payload_packet_len > 4 && memcmp(packet->payload, "GET /", 5) == 0) {
+			ndpi_parse_packet_line_info(ndpi_struct, flow);
+			if (packet->parsed_lines == 8
+				&& (packet->line[0].ptr != NULL && packet->line[0].len >= 30
+					&& (memcmp(&packet->payload[5], "notice/login_big", 16) == 0
+						|| memcmp(&packet->payload[5], "notice/login_small", 18) == 0))
+				&& memcmp(&packet->payload[packet->line[0].len - 19], "/index.asp HTTP/1.", 18) == 0
+				&& (packet->host_line.ptr != NULL && packet->host_line.len >= 13
+					&& (memcmp(packet->host_line.ptr, "crossfire", 9) == 0
+						|| memcmp(packet->host_line.ptr, "www.crossfire", 13) == 0))
+				) {
+				NDPI_LOG(NDPI_PROTOCOL_CROSSFIRE, ndpi_struct, NDPI_LOG_DEBUG, "Crossfire: found HTTP request.\n");
+				ndpi_int_crossfire_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
+				return;
+			}
+		}
+
+	}
+
+	NDPI_LOG(NDPI_PROTOCOL_CROSSFIRE, ndpi_struct, NDPI_LOG_DEBUG, "exclude crossfire.\n");
+	NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_CROSSFIRE);
+}
+
+
+
+#endif