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pespin has posted comments on this change by pespin. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/43214?usp=email )
Change subject: 5gc: keep NUS after UeContextRelease ......................................................................
Patch Set 2:
(1 comment)
Patchset:
PS2:
Isn't there some more automatic way how we can unburden the test cases from manually managing the nu […]
TBH the more I work with the NGAP/S1AP Emulation the more I see stuffing the NAS enc/dec in there was a bad idea, as it comes with all sorts of limitations and problems.
In the end the NAS send/recv from NGAP/S1AP_Emulation is only used with UplinkTransport and DownlinkTransport, and can't be used to eg. send NAS on other types of messages like the one in this test. It also creates problems in DL messages containing multiple NAS messages (eg. creating multiple bearers).
The more I look into it, the more I think the NAS state should be kept in the ConnHdlr of the test and operate on it directly.