1 files changed, 67 insertions, 0 deletions
diff --git a/src/lib/protocols/ayiya.c b/src/lib/protocols/ayiya.c
new file mode 100644
index 000000000..c4d1a26ad
--- /dev/null
+++ b/src/lib/protocols/ayiya.c
@@ -0,0 +1,67 @@
+/*
+ * ayiya.c
+ *
+ * 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/>.
+ *
+ */
+
+/*
+  http://en.wikipedia.org/wiki/Anything_In_Anything 
+  http://tools.ietf.org/html/rfc4891
+*/
+
+
+#include "ndpi_protocols.h"
+#ifdef NDPI_PROTOCOL_AYIYA
+
+struct ayiya {
+  u_int8_t flags[3];
+  u_int8_t next_header;
+  u_int32_t epoch;
+  u_int8_t identity[16];
+  u_int8_t signature[20];  
+};
+
+void ndpi_search_ayiya(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+  struct ndpi_packet_struct *packet = &flow->packet;
+
+  if(packet->udp && (packet->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN)) {
+    /* Ayiya is udp based, port 5072 */
+    if ((packet->udp->source == htons(5072) || packet->udp->dest == htons(5072))
+	/* check for ayiya new packet */
+	&& (packet->payload_packet_len > 44)
+	) {
+      /* FINISH */
+      struct ayiya *a = (struct ayiya*)packet->payload;
+      u_int32_t epoch = ntohl(a->epoch), now;
+      u_int32_t fireyears = 86400 * 365 * 5;
+
+      now = flow->packet.tick_timestamp;
+
+      if((epoch >= (now - fireyears)) && (epoch <= (now+86400 /* 1 day */)))      
+	ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_AYIYA, NDPI_REAL_PROTOCOL);
+
+      return;
+    }
+
+    NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_AYIYA);
+  }
+}
+#endif