[GPRS] Major LLC / TLLI handling fixes

* separate the LLME and LLE state in the LLC layer
* introduce gprs_llgmm_assign() function for LLGMM-ASSIGN.req primitive
* change QoS profile to match 'real' SGSN
* Update the new TLLI when assigning a P-TMSI

The result now is that the LLC layer is notified of TLLI changes, which in turn
means it doesn't allocate a new LLE structure every TLLI change, which again
in turn means that the UI frame sequence number does not reset to zero.

As a result, MS should no longer ignore frames based on wrong UI sequence number.
1 file changed
tree: e849ad99e01f412109c39ddc974a8f43c8134622
  1. openbsc/