Protobuf decoding for Mqtt messages
i see details about adding protobuf decoding to TCP UDP messages, but is there a way to add protobuf decoding to already dissected mqtt messages?
Thanks a lot Graham for your answer, It is working. I created specific protobuf message's dissectors in a Lua script and assigned them in Mqtt "Message Decoding" preference to different topic strings in Wireshark. Now i can see protobuf decoding for all mqtt messages in Wireshark
Just another question. Can we do it all in a Lua script? Parse mqtt topic strings and map them to different protobuf dissectors without having to go to Wireshark MQTT dissector preference "Message Decoding"?
I am not that expert in Lua script but just curious if it's a possible option as it will give easy working
Not entirely sure what your end goal is here, but the SparkPlugB dissector relies on the MQTT dissector to deliver messages, parses off the SparkPlugB header and then uses the protobuf dissector to dissect the message contents.
What are you trying to do and does the protocol have a name or specification?
Thanks for your comment. No new protocol, basically i am sending protobuf encoded messages on mqtt. i am trying to see protobuf decoding of mqtt messages data in wireshark log itself. Like there is a way to directly link protobuf with UDP messages. Can we do some similar linking between protobuf and Mqtt message data.