Initial import from SVN

1 files changed, 102 insertions, 0 deletions

diff --git a/src/lib/protocols/armagetron.c b/src/lib/protocols/armagetron.c
new file mode 100644
index 000000000..6c5064fda
--- /dev/null
+++ b/src/lib/protocols/armagetron.c
@@ -0,0 +1,102 @@
+/*
+ * armagetron.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_ARMAGETRON
+
+
+static void ndpi_int_armagetron_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
+					       struct ndpi_flow_struct *flow)
+{
+
+  ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_ARMAGETRON, NDPI_REAL_PROTOCOL);
+}
+
+void ndpi_search_armagetron_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_ARMAGETRON, ndpi_struct, NDPI_LOG_DEBUG, "search armagetron.\n");
+
+
+  if (packet->payload_packet_len > 10) {
+    /* login request */
+    if (get_u_int32_t(packet->payload, 0) == htonl(0x000b0000)) {
+      const u_int16_t dataLength = ntohs(get_u_int16_t(packet->payload, 4));
+      if (dataLength == 0 || dataLength * 2 + 8 != packet->payload_packet_len)
+	goto exclude;
+      if (get_u_int16_t(packet->payload, 6) == htons(0x0008)
+	  && get_u_int16_t(packet->payload, packet->payload_packet_len - 2) == 0) {
+	NDPI_LOG(NDPI_PROTOCOL_ARMAGETRON, ndpi_struct, NDPI_LOG_DEBUG, "detected armagetron.\n");
+	ndpi_int_armagetron_add_connection(ndpi_struct, flow);
+	return;
+      }
+    }
+    /* sync_msg */
+    if (packet->payload_packet_len == 16 && get_u_int16_t(packet->payload, 0) == htons(0x001c)
+	&& get_u_int16_t(packet->payload, 2) != 0) {
+      const u_int16_t dataLength = ntohs(get_u_int16_t(packet->payload, 4));
+      if (dataLength != 4)
+	goto exclude;
+      if (get_u_int32_t(packet->payload, 6) == htonl(0x00000500) && get_u_int32_t(packet->payload, 6 + 4) == htonl(0x00010000)
+	  && get_u_int16_t(packet->payload, packet->payload_packet_len - 2) == 0) {
+	NDPI_LOG(NDPI_PROTOCOL_ARMAGETRON, ndpi_struct, NDPI_LOG_DEBUG, "detected armagetron.\n");
+	ndpi_int_armagetron_add_connection(ndpi_struct, flow);
+	return;
+      }
+    }
+
+    /* net_sync combination */
+    if (packet->payload_packet_len > 50 && get_u_int16_t(packet->payload, 0) == htons(0x0018)
+	&& get_u_int16_t(packet->payload, 2) != 0) {
+      u_int16_t val;
+      const u_int16_t dataLength = ntohs(get_u_int16_t(packet->payload, 4));
+      if (dataLength == 0 || dataLength * 2 + 8 > packet->payload_packet_len)
+	goto exclude;
+      val = get_u_int16_t(packet->payload, 6 + 2);
+      if (val == get_u_int16_t(packet->payload, 6 + 6)) {
+	val = ntohs(get_u_int16_t(packet->payload, 6 + 8));
+	if ((6 + 10 + val + 4) < packet->payload_packet_len
+	    && (get_u_int32_t(packet->payload, 6 + 10 + val) == htonl(0x00010000)
+		|| get_u_int32_t(packet->payload, 6 + 10 + val) == htonl(0x00000001))
+	    && get_u_int16_t(packet->payload, packet->payload_packet_len - 2) == 0) {
+	  NDPI_LOG(NDPI_PROTOCOL_ARMAGETRON, ndpi_struct, NDPI_LOG_DEBUG, "detected armagetron.\n");
+	  ndpi_int_armagetron_add_connection(ndpi_struct, flow);
+	  return;
+	}
+      }
+    }
+  }
+
+ exclude:
+  NDPI_LOG(NDPI_PROTOCOL_ARMAGETRON, ndpi_struct, NDPI_LOG_DEBUG, "exclude armagetron.\n");
+  NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_ARMAGETRON);
+}
+
+#endif