Add few other fields, indicate file transfer

mvrxchange_dissector/mvrxchange.lua

@@ -24,6 +24,10 @@ mvrxchange.fields.message_ver_major = ProtoField.string('mvrxchange.message_ver_
 mvrxchange.fields.message_ver_minor = ProtoField.string('mvrxchange.message_ver_minor', "MESSAGE_VER_MINOR")
 mvrxchange.fields.message_comment = ProtoField.string('mvrxchange.message_comment', "MESSAGE_COMMENT")
 mvrxchange.fields.message_files = ProtoField.string('mvrxchange.message_files', "MESSAGE_FILES")
+mvrxchange.fields.message_station_uuid = ProtoField.string('mvrxchange.message_station_name', "MESSAGE_STATION_UUID")
+mvrxchange.fields.message_from_station_uuid = ProtoField.string('mvrxchange.message_from_station_uuid', "MESSAGE_FROM_STATION_UUID")
+
+
 
 function process_message(data, subtree)
 
@@ -50,6 +54,15 @@ function process_message(data, subtree)
    if data["Files"] ~= nil then
        subtree:add(mvrxchange.fields.message_files):append_text("Number:" .. tostring(#data["Files"]) .. "")
    end
+   if data["StationName"] ~= nil then
+       subtree:add(mvrxchange.fields.message_station_name):append_text(data["StationName"])
+   end
+   if data["StationUUID"] ~= nil then
+       subtree:add(mvrxchange.fields.message_station_uuid):append_text(data["StationUUID"])
+   end
+   if data["FromStationUUID"] ~= nil then
+       subtree:add(mvrxchange.fields.message_from_station_uuid):append_text(data["FromStationUUID"])
+   end
 end
 
 
@@ -65,12 +78,14 @@ function mvrxchange.dissector(tvbuf, pinfo, tree)
   t:add(mvrxchange.fields.count, tvbuf(12, 4))
   t:add(mvrxchange.fields.type, mvr_type)
   t:add(mvrxchange.fields.length, tvbuf(20, 8))
-  local s = t:add(mvrxchange.fields.message, message )
 
   if (mvr_type:uint() == 0  and message:len()>2) then
+  local s = t:add(mvrxchange.fields.message, message )
    print("Message", message:string())
    local decoded = json.decode(message:string())
    process_message(decoded, s)
+   else
+   t:add(mvrxchange.fields.message, tvbuf(0,0)):append_text("File transfer")
   end
 
 end