Session Initialization Response Incorrect Parsing

[soxrok2212]

Hey again, I'm doing some more testing and it looks like the session initialization response is not being parsed correctly. It seems that the Destination Up message is parsed as a MAC address data item in the response message.

I attached a screenshot to show what I mean.

The following messages also appear to be exchanged as raw TCP packets and not DLEP. Am I missing something here?
Thank you!

[soxrok2212]

Setting line 528 in dlepsession.py to item = None temporarily resolves the issue.

[lawa23]

This problem occurs when more than a single DLEP message arrives in the TCP buffer, correct?

I found out this week that the current DLEPard implementation does not support reassembling DLEP packets.
Which is a serious bug in my opinion. I will fix this soon.

An additional hint if you need a quick workaround:
I will implement an additional buffer either in DLEPSession.on_tcp_receive() or in TCPProxy.connection_made().

[soxrok2212]

This problem occurs when more than a single DLEP message arrives in the TCP buffer, correct?

That would make sense as there is nothing else between Session Initialization Response and Destination Up.

I found out this week that the current DLEPard implementation does not support reassembling DLEP packets.
Which is a serious bug in my opinion. I will fix this soon.

Great, thank you!

An additional hint if you need a quick workaround:
I will implement an additional buffer either in DLEPSession.on_tcp_receive() or in TCPProxy.connection_made().

Ironically the issue stopped presenting itself in my testing yesterday, but I be if I try again it'll show up eventually. For now, I don't think the MAC address is used anywhere as a data item so leaving it commented out is enough of a bandaid for the time being.