1 files changed, 98 insertions, 0 deletions
diff --git a/src/lib/protocols/kxun.c b/src/lib/protocols/kxun.c
new file mode 100644
index 000000000..33939ed85
--- /dev/null
+++ b/src/lib/protocols/kxun.c
@@ -0,0 +1,98 @@
+/*
+ * kxun.c
+ *
+ * Copyright (C) 2016 - ntop.org
+ *
+ * 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_SERVICE_1KXUN
+
+
+static void ndpi_int_kxun_add_connection(struct ndpi_detection_module_struct
+					     *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+  ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_SERVICE_1KXUN, NDPI_PROTOCOL_UNKNOWN);
+}
+
+
+void ndpi_search_kxun(struct ndpi_detection_module_struct
+			  *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+  struct ndpi_packet_struct *packet = &flow->packet;
+
+  /* 1KXUN over TCP is detected inside HTTP dissector */
+	
+  /* check 1KXUN over UDP */
+  if(packet->udp != NULL) {
+    /* check ipv6 */
+    if(packet->iphv6 != NULL) {
+      if(packet->iphv6->ip6_dst.u6_addr.u6_addr32[0] == 0x2ff &&
+	 packet->payload_packet_len == 329) {
+	if(packet->payload[0] == 0xff &&
+	   packet->payload[1] == 0x0f &&
+	   packet->payload[4] == 0xa0 &&
+	   packet->payload[5] == 0x00) {
+	  NDPI_LOG(NDPI_SERVICE_1KXUN, ndpi_struct, NDPI_LOG_DEBUG,
+		   "found 1kxun over udp.\n");
+	  ndpi_int_kxun_add_connection(ndpi_struct, flow);
+	  return;
+	}
+      }
+    }
+    else if(packet->iph != NULL) {
+      if(packet->iph->daddr == 0xffffffff) {
+	if(packet->payload_packet_len == 40 &&
+	   packet->payload[8] == 0x41 &&
+	   packet->payload[9] == 0x41 &&
+	   packet->payload[10] == 0x42) {
+	  NDPI_LOG(NDPI_PROTOCOL_1KXUN, ndpi_struct, NDPI_LOG_DEBUG,
+		   "found 1kxun over udp.\n");
+	  ndpi_int_kxun_add_connection(ndpi_struct, flow);
+	  return;
+	}
+	if(packet->payload_packet_len == 317 &&
+	   packet->payload[0] == 0xff &&
+	   packet->payload[1] == 0xff &&
+	   packet->payload[4] == 0xa0 &&
+	   packet->payload[5] == 0x00) {
+	  NDPI_LOG(NDPI_PROTOCOL_1KXUN, ndpi_struct, NDPI_LOG_DEBUG,
+		   "found 1kxun over udp.\n");
+	  ndpi_int_kxun_add_connection(ndpi_struct, flow);
+	  return;
+	}
+      }
+    }
+  }
+  /* EXCLUDE 1KXUN */
+  NDPI_LOG(NDPI_SERVICE_1KXUN, ndpi_struct, NDPI_LOG_DEBUG, "exclude 1kxun.\n");
+  NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_SERVICE_1KXUN);
+}
+
+
+void init_kxun_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
+{
+  ndpi_set_bitmask_protocol_detection("1kxun", ndpi_struct, detection_bitmask, *id,
+				      NDPI_SERVICE_1KXUN,
+				      ndpi_search_kxun,
+				      NDPI_SELECTION_BITMASK_PROTOCOL_UDP_WITH_PAYLOAD,
+				      SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+				      ADD_TO_DETECTION_BITMASK);
+
+  *id += 1;
+}
+
+#endif