Update Modbus stats from OT_INFO

Author: cardigliano

include/Flow.h

@@ -704,6 +704,7 @@ class Flow : public GenericHashEntry {
                              u_int16_t payload_len,
 			     const struct pcap_pkthdr *h);
 #ifdef NTOPNG_PRO
+  void updateOTStats(ParsedFlow *zflow);
   void processModbusPacket(bool is_query, const u_char *payload,
 			   u_int16_t payload_len,
 			   const struct pcap_pkthdr *h);

src/ParserInterface.cpp

@@ -613,6 +613,12 @@ bool ParserInterface::processFlow(ParsedFlow *zflow) {
 	flow->updateJA4C(zflow->getJA4cHash());
     }
 
+#ifdef NTOPNG_PRO
+    if (flow->isModbus()) {
+      flow->updateOTStats(zflow);
+    }
+#endif
+
     if (flow->isSMTP()) {
       if (zflow->getSMTPMailFrom())
         flow->setSMTPMailFrom(zflow->getSMTPMailFrom());