Increased number of protocols to 512

Implemented WhatsApp file exchage support (added test pcap)

1 files changed, 60 insertions, 0 deletions

diff --git a/src/lib/protocols/whatsapp.c b/src/lib/protocols/whatsapp.c
new file mode 100644
index 000000000..b079dcd01
--- /dev/null
+++ b/src/lib/protocols/whatsapp.c
@@ -0,0 +1,60 @@
+/*
+ * whatsapp.c
+ *
+ * Copyright (C) 2018 - ntop.org
+ *
+ * nDPI is free software: you can zmqtribute 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_protocol_ids.h"
+
+#ifdef NDPI_PROTOCOL_WHATSAPP
+
+#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_WHATSAPP
+
+#include "ndpi_api.h"
+
+void ndpi_search_whatsapp(struct ndpi_detection_module_struct *ndpi_struct,
+			  struct ndpi_flow_struct *flow) {
+  struct ndpi_packet_struct *packet = &flow->packet;
+  u_int8_t whatsapp_sequence[] = {
+    0x45, 0x44, 0x0, 0x01, 0x0, 0x0, 0x02, 0x08,
+    0x0, 0x57, 0x41, 0x02, 0x0, 0x0, 0x0
+  };
+
+  NDPI_LOG_DBG(ndpi_struct, "search WhatsApp\n");
+
+  if((packet->payload_packet_len > 240)
+     && (memcmp(packet->payload, whatsapp_sequence, sizeof(whatsapp_sequence)) == 0)) {
+    NDPI_LOG_INFO(ndpi_struct, "found WhatsApp\n");
+    ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_WHATSAPP, NDPI_PROTOCOL_UNKNOWN);
+  } else 
+    NDPI_EXCLUDE_PROTO(ndpi_struct, flow);  
+}
+
+
+void init_whatsapp_dissector(struct ndpi_detection_module_struct *ndpi_struct,
+			     u_int32_t *id,
+			     NDPI_PROTOCOL_BITMASK *detection_bitmask) {
+  ndpi_set_bitmask_protocol_detection("WhatsApp", ndpi_struct, detection_bitmask, *id,
+				      NDPI_PROTOCOL_WHATSAPP,
+				      ndpi_search_whatsapp,
+				      NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
+				      SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+				      ADD_TO_DETECTION_BITMASK);
+  *id += 1;
+}
+
+
+#endif