Commit Graph

5 Commits

Author SHA1 Message Date
Sukchan Lee a1a0a8c0a6 [MME] Race condition between S1AP and S6A
Assume the UE has Attached, the session has been created,
and is in the IDLE state with the UEContextRelease process.

This could result in the following call flow.

1. TAU request without Integrity Protected
2. Authentication request/response
3. Security-mode command/complete

MME can be performed simultaneously by the HSS(S6A) and UE(S1AP).

Update-Location-Request
Service request
Service reject
Delete Session Request
Delete Session Response
Update-Location-Answer
UEContextReleaseCommand for Service reject
TAU reject
UEContextReleaseCommand for TAU reject
UEContextReleaseComplete
UEContextReleaseComplete

MME crashes when UE sends a service request(S1AP) during ULR/ULA(S6A) with HSS,
which has been fixed.
2024-03-16 23:08:07 +09:00
jmasterfunk84 3fd7ecc9a2
[MME] Add Purge-UE Capability (#1991)
* [MME] Add Purge-UE Capability

* Add OGS_GTP_..._PURGE_AND_REMOVE to split CLR case
2023-01-14 09:13:48 +09:00
Sukchan Lee 3c8af69805 Re-factoring the all library 2019-09-13 21:07:47 +09:00
Sukchan Lee 1f838c0f68 Move New Indentation with LINUX-style 2019-06-16 11:25:41 +09:00
Sukchan Lee 477f16ad0b rename project done 2019-06-11 22:10:47 +09:00