Hi all!

For some time, Ivan of Fairwaves has been working on PCU code for OpenBTS. In order to not have to re-implement NS/BSSGP, he used the openbsc/src/libgb/* code that we already had as part of openbsc.git

I've now finally found some time and completely separated this code from all the dependencies to openbsc stuff and migrated it as new "libosmogb" into the libosmocore.git repository. This has been done with git filter-branch, and thus the history has been preserved during the migration. All Gb code has now been removed from openbsc.git.

This separation has been much more painful than anticipated (especially on the BSSGP side), and the result is not very clean either. I hope to get back and clean this up further at some point, providing a better interface between applications and the library.

Ivan's PCU code is now in osmo-pcu.git on git.osmocom.org, and I've also already ported it over to use the shared libosmogb. The latter is not yet pushed, but I'll do that soon. I've also removed any other direct include and/or linking against openbsc/osmo-sgsn/openggsn, so the PCU can now build fully autonomously, just linking against the shared libosmo{core,gsm,vty,gb}.

Next upcomig will be the support of osmo-bts (sysmoBTS hardware) from osmo-pcu. Andreas Eversberg has been contracted by sysmocom to spend some time on this.

There is also a new osmocom-pcu@lists.osmocom.org mailing list for those interested specificall in GPRS PCU issues. We thought it is best to keep it separate, as it will be of interest to people from the OpenBSC as well as the OpenBTS communities, and list-crossposting might not be the best thing to do.

Regards, Harald