Initial import from SVN

1 files changed, 97 insertions, 0 deletions

diff --git a/src/lib/protocols/fiesta.c b/src/lib/protocols/fiesta.c
new file mode 100644
index 000000000..2b09ac9f7
--- /dev/null
+++ b/src/lib/protocols/fiesta.c
@@ -0,0 +1,97 @@
+/*
+ * fiesta.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 files */
+#include "ndpi_protocols.h"
+#ifdef NDPI_PROTOCOL_FIESTA
+
+
+static void ndpi_int_fiesta_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+	ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_FIESTA, NDPI_REAL_PROTOCOL);
+}
+
+void ndpi_search_fiesta(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_FIESTA, ndpi_struct, NDPI_LOG_DEBUG, "search fiesta.\n");
+
+	if (flow->l4.tcp.fiesta_stage == 0 && packet->payload_packet_len == 5
+		&& get_u_int16_t(packet->payload, 0) == ntohs(0x0407)
+		&& (packet->payload[2] == 0x08)
+		&& (packet->payload[4] == 0x00 || packet->payload[4] == 0x01)) {
+
+		NDPI_LOG(NDPI_PROTOCOL_FIESTA, ndpi_struct, NDPI_LOG_DEBUG, "maybe fiesta symmetric, first packet.\n");
+		flow->l4.tcp.fiesta_stage = 1 + packet->packet_direction;
+		goto maybe_fiesta;
+	}
+	if (flow->l4.tcp.fiesta_stage == (2 - packet->packet_direction)
+		&& ((packet->payload_packet_len > 1 && packet->payload_packet_len - 1 == packet->payload[0])
+			|| (packet->payload_packet_len > 3 && packet->payload[0] == 0
+				&& get_l16(packet->payload, 1) == packet->payload_packet_len - 3))) {
+		NDPI_LOG(NDPI_PROTOCOL_FIESTA, ndpi_struct, NDPI_LOG_DEBUG, "Maybe fiesta.\n");
+		goto maybe_fiesta;
+	}
+	if (flow->l4.tcp.fiesta_stage == (1 + packet->packet_direction)) {
+		if (packet->payload_packet_len == 4 && get_u_int32_t(packet->payload, 0) == htonl(0x03050c01)) {
+			goto add_fiesta;
+		}
+		if (packet->payload_packet_len == 5 && get_u_int32_t(packet->payload, 0) == htonl(0x04030c01)
+			&& packet->payload[4] == 0) {
+			goto add_fiesta;
+		}
+		if (packet->payload_packet_len == 6 && get_u_int32_t(packet->payload, 0) == htonl(0x050e080b)) {
+			goto add_fiesta;
+		}
+		if (packet->payload_packet_len == 100 && packet->payload[0] == 0x63 && packet->payload[61] == 0x52
+			&& packet->payload[81] == 0x5a && get_u_int16_t(packet->payload, 1) == htons(0x3810)
+			&& get_u_int16_t(packet->payload, 62) == htons(0x6f75)) {
+			goto add_fiesta;
+		}
+		if (packet->payload_packet_len > 3 && packet->payload_packet_len - 1 == packet->payload[0]
+			&& get_u_int16_t(packet->payload, 1) == htons(0x140c)) {
+			goto add_fiesta;
+		}
+	}
+
+	NDPI_LOG(NDPI_PROTOCOL_FIESTA, ndpi_struct, NDPI_LOG_DEBUG, "exclude fiesta.\n");
+	NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_FIESTA);
+	return;
+
+  maybe_fiesta:
+	NDPI_LOG(NDPI_PROTOCOL_FIESTA, ndpi_struct, NDPI_LOG_DEBUG, "Stage is set to %d.\n", flow->l4.tcp.fiesta_stage);
+	return;
+
+  add_fiesta:
+	NDPI_LOG(NDPI_PROTOCOL_FIESTA, ndpi_struct, NDPI_LOG_DEBUG, "detected fiesta.\n");
+	ndpi_int_fiesta_add_connection(ndpi_struct, flow);
+	return;
+}
+#endif