E.solutions Trace Terminal

Another cool find inside the LSD.JXE from Audi MHI2 - embedded Trace Terminal by e.Solutions. Once again - no idea how to enable it, how to connect with it. But this time I can see the help summary, which gives us some idea about the scope of possibilities and example of usage.

System.out.println("Welcome to the e.solutions Trace Terminal");
System.out.println("Enter 'q' or 'quit' to quit the application (only if allowed).");
System.out.println("Enter 'help' for a short command summary.");

System.out.println("ls                              show all entities");
System.out.println("channel|ch|c <name|id> [level]  query or change a channel filter level");
System.out.println("thread|th|t  <name|id> [level]  query or change a thread filter level");
System.out.println("wait <type> <name|id> [timeout] wait for an enabled entity (timeout in ms)");
System.out.println("call <name|id> [argument]       call a callback method");
System.out.println("start <filename>                start logging to file name");
System.out.println("stop [filename]                 stop logging to file name or stop all logs");
System.out.println("stat start|stop                 take some tracing statistics");
System.out.println("mute                            do not display messages");
System.out.println("unmute                          do display messages");
System.out.println("get <filename>                  send a file download request ");
System.out.println("fstat <filename>                send a file status request ");
System.out.println("put <filename>                  upload a file");
System.out.print("levels: ");

Interesting thing is the ability to download and upload files. Potentially this allows proper file injection without SWDL binary patching, eMMC soldering...

TODO

Check if this is also available in VW/SEAT/Skoda MST2 units. If yes, this would be a much simpler and clean alternative to eMMC soldering, USB OTG, and other dirty exploits.