Add handshakeStage as metric

src/main.js

@@ -78,13 +78,14 @@ if(errorMsg){
   logger.debug("Attaching error-logger..");
   const loggerTcpdump = logFactory("tcpdump");
   proc.stderr.setEncoding("utf8").on("data", (data) => {
-    if(!data.match(/^(tcpdump: )?listening on /i))  // Catch start-error
-        loggerTcpdump.error(data);
+    if(!data.match(/^(tcpdump: )?listening on /i) || !data.match(/^\d+ packets captured/i)) {  // Catch start-error
+        loggerTcpdump.debug(data);
+    }
+    else loggerTcpdump.error(data);
   });
 
-  regexBlockStream.on('error', (err) => {
-    if(err) loggerTcpdump.error(err);
-  })
+  // FIXME: This is a hacky workaround to not let errors from subprocess bubble up and terminate our process
+  regexBlockStream.on('error', (err) => {});
 
   proc.on("error", (err) => {
     loggerTcpdump.error(err);

src/streamHandler/PacketInfluxPointFactory.js

@@ -21,6 +21,7 @@ const MEASUREMENT_MAP = new Map([
     ["AuthenticationType", "authenticationType"],
     ["AssociationSuccess", "associationIsSuccessful"],
     ["DisassociationReason", "disassociationReason"],
+    ["HandshakeStage", "handshakeStage"],
 ]);