This allows forwarding GRR-UNITDATA.ind/req up & down the stack, to be
on pair with the BSSGP LLC SAP.
Change-Id: I6a4454b4aa2c96e1f4ce7e2a5d5aba8ec1cf3f60
This way the app can, for instance, simply forward the primtiive pointer
from LLC callback to SNDCP layer, which will in the end take the
ownership of the primitive and free it.
Change-Id: I6ea91b8f190a399c4bcf6c7cba9a65809aaf3ddb
Most of the existing (and added) data structures are kept private, since
most of those don't really need to be used outside internal code in the
library.
Most if not all the interaction from upper and lower layers towards LLC
is now done through the new llc_prim pubic interface. This interface is
based on 3GPP TS 44.064 section 7.1.2.
This commit also implements some of the code paths of the public API by
means on importing LLC code from osmo-sgsn.git commit
57b63875c762a784127a13becd1c2549ca6c5454.
The import of code cannot be done in a separate commit since existing code
in osmo-sgsn.git is low quality and has tons of layer violations in all
directions.
Hence, this commit aims at being an initial point of having some working
LLC stack by means of a few unit tests, but by no means aims to be a
total working implementation. Some code paths are missing; bugs are
expected at this point.
Related: OS#5502
Change-Id: I588eb576b2703262f4ab9566ec362920d8390cfd
libosmogsm is needed for the follow-up patch [1].
Change-Id: Iee45fb87905ea29df02a48003396bde27e6c550c
Related: [1] I588eb576b2703262f4ab9566ec362920d8390cfd
Related: OS#5502
Similar to Icfef6de126304da81120f1d7b212992ead3409aa, let's add
osmo_gprs_llc_set_log_cat() allowing the API users to change
logging category for libosmo-gprs-llc (DLGLOBAL is default).
Change-Id: I9deb794db1c80257ba81523f815232208381bc27
Pau Espin
Vadim Yanitskiy