Hi,
Developing a module for FreeRADIUS to support EAP-SIM and EAP-AKA authentication against a
HLR.
The HLR we were targeting only supported a SCTP/M3UA/SCCP/TCAP/MAP stack, so we
couldn't use SUA.
Ripping the M3UA/MTP3 code out of OpenBSC worked surprisingly well. We ended up running
the event loop in a separate thread to work around the threading issues.
Unfortunately the HLR implements the ANSI variant of everything, whereas OpenBSC and
supporting libraries seem to have been written to be compatible with the ITU standards.
...but the differences are fairly minor at MTP3 and SCCP layers, and i've started work
on a patchset for libosmo-sccp.
https://gerrit.osmocom.org/#/c/73/
Anyway, trying to gauge interest in splitting those layers out of Open BSC into a separate
library, would be happy to take on M2UA as well for consistency.
It would almost certainly get more projects using the code. There's very little out
there even in Perl land for working with SS7.
Thanks,
-Arran
Arran Cudbard-Bell <a.cudbardb(a)freeradius.org>
FreeRADIUS Development Team
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