Hello :)
Now I've implemented the TP-VPF-ENHANCED. To achieve that I added some goto-stuff - i hope that's ok. I think it makes sense here.
It's again untested, but compiles fine. I'm working at the moment on a way to test SMS-PDU decoding.
If that's easier you can simply merge the branch tp-vp from git://github.com/stefreak/openbsc.git :)
The patch is attached.
Greetings, Steffen