Improved WeChat support

Removed Musical.ly protocol as the service has been merged with another one and thus it is no longer used
Improved guess for UDP protocols

1 files changed, 18 insertions, 8 deletions

diff --git a/src/lib/protocols/dropbox.c b/src/lib/protocols/dropbox.c
index d981c76b3..39bb96ff2 100644
--- a/src/lib/protocols/dropbox.c
+++ b/src/lib/protocols/dropbox.c
@@ -48,14 +48,24 @@ static void ndpi_check_dropbox(struct ndpi_detection_module_struct *ndpi_struct,
   if(packet->udp != NULL) {
     u_int16_t dropbox_port = htons(DB_LSP_PORT);
 
-    if((packet->udp->source == dropbox_port)
-       && (packet->udp->dest == dropbox_port)) {
-      if(payload_len > 2) {
-	if(strstr((const char *)packet->payload, "\"host_int\"") != NULL) {
-	  
-	  NDPI_LOG_INFO(ndpi_struct, "found dropbox\n");
-	  ndpi_int_dropbox_add_connection(ndpi_struct, flow, 0);
-	  return;
+    if(packet->udp->dest == dropbox_port) {    
+      if(packet->udp->source == dropbox_port) {	
+	if(payload_len > 10) {
+	  if(ndpi_strnstr((const char *)packet->payload, "\"host_int\"", payload_len) != NULL) {
+	    
+	    NDPI_LOG_INFO(ndpi_struct, "found dropbox\n");
+	    ndpi_int_dropbox_add_connection(ndpi_struct, flow, 0);
+	    return;
+	  }
+	}
+      } else {
+	if(payload_len > 10) {
+	  if(ndpi_strnstr((const char *)packet->payload, "Bus17Cmd", payload_len) != NULL) {
+	    
+	    NDPI_LOG_INFO(ndpi_struct, "found dropbox\n");
+	    ndpi_int_dropbox_add_connection(ndpi_struct, flow, 0);
+	    return;
+	  }
 	}
       }
     }