Initial import from SVN

1 files changed, 93 insertions, 0 deletions

diff --git a/src/lib/protocols/attic/flash.c b/src/lib/protocols/attic/flash.c
new file mode 100644
index 000000000..e6b89a185
--- /dev/null
+++ b/src/lib/protocols/attic/flash.c
@@ -0,0 +1,93 @@
+/*
+ * flash.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_FLASH
+
+static void ndpi_int_flash_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+	ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_FLASH, NDPI_REAL_PROTOCOL);
+}
+
+void ndpi_search_flash(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 (flow->l4.tcp.flash_stage == 0 && packet->payload_packet_len > 0
+		&& (packet->payload[0] == 0x03 || packet->payload[0] == 0x06)) {
+		flow->l4.tcp.flash_bytes = packet->payload_packet_len;
+		if (packet->tcp->psh == 0) {
+			NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG, "FLASH pass 1: \n");
+			flow->l4.tcp.flash_stage = packet->packet_direction + 1;
+
+			NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
+					"FLASH pass 1: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
+					flow->l4.tcp.flash_bytes);
+			return;
+		} else if (packet->tcp->psh != 0 && flow->l4.tcp.flash_bytes == 1537) {
+			NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
+					"FLASH hit: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
+					flow->l4.tcp.flash_bytes);
+			flow->l4.tcp.flash_stage = 3;
+			ndpi_int_flash_add_connection(ndpi_struct, flow);
+			return;
+		}
+	} else if (flow->l4.tcp.flash_stage == 1 + packet->packet_direction) {
+		flow->l4.tcp.flash_bytes += packet->payload_packet_len;
+		if (packet->tcp->psh != 0 && flow->l4.tcp.flash_bytes == 1537) {
+			NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
+					"FLASH hit: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
+					flow->l4.tcp.flash_bytes);
+			flow->l4.tcp.flash_stage = 3;
+			ndpi_int_flash_add_connection(ndpi_struct, flow);
+			return;
+		} else if (packet->tcp->psh == 0 && flow->l4.tcp.flash_bytes < 1537) {
+			NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
+					"FLASH pass 2: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
+					flow->l4.tcp.flash_bytes);
+			return;
+		}
+	}
+
+	NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
+			"FLASH might be excluded: flash_stage: %u, flash_bytes: %u, packet_direction: %u\n",
+			flow->l4.tcp.flash_stage, flow->l4.tcp.flash_bytes, packet->packet_direction);
+
+#ifdef NDPI_PROTOCOL_HTTP
+	if (NDPI_COMPARE_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_HTTP) != 0) {
+#endif							/* NDPI_PROTOCOL_HTTP */
+		NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG, "FLASH: exclude\n");
+		NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_FLASH);
+#ifdef NDPI_PROTOCOL_HTTP
+	} else {
+		NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG, "FLASH avoid early exclude from http\n");
+	}
+#endif							/* NDPI_PROTOCOL_HTTP */
+
+}
+#endif