tree 3f5a0f945b063a9ba8f6a3869240565be44ae892
parent 0a68497324cf0da8fa5f88e19736368cc8b07cbd
author Harald Welte <laforge@osmocom.org> 1575236061 +0100
committer Harald Welte <laforge@osmocom.org> 1575387767 +0100

bankd: send IPA CCM ID_ACK after receiving ID_ACK

It is customary in the IPA protocol that a a server side
responds with an ID_ACK if the client sends an ID_ACK.  Due
to the lack of any protocol specification, it's unclear why
exactly, but we know it does happen.

osmo-remsim-bankd so far failed to implement this, which is
not directly a problem as the only user (osmo-remsim-client)
didn't care.  However, when executing TTCN3 test cases,
the IPA_Emulation expects that ID_ACK and related test fail.

Change-Id: Ie55c9d5c435df786e97ec3900837bb21ab80140a