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21 Commits

Author SHA1 Message Date
Sukchan Lee 2ceca49161 [MME/AMF] Fixed crash following Handover Request (#3014) 
1. HandoverRequired
2. HandoverRequest
3. HandoverFailure
4. UEContextReleaseCommand
5. HandoverPreparationFailure

If UEContextReleaseComplete is not received,
the Source-UE will have the Target-UE.

6. HandoverRequired

There may be cases where the Source UE has a Target UE
from a previous HandoverRequired process. In this case,
it is recommended to force the deletion of the Target UE information
when receiving a new HandoverRequired.

7. HandoverRequest
8. HandoverFailure
9. UEContextReleaseCommand
10. UEContextReleaseComplete
11. HandoverPreparationFailure

... Crashed ...
 2024-02-29 23:02:38 +09:00
Sukchan Lee b0cf9fcbe7 [AMF] Issue during Concurrent UE Registration (#2839) 
While they were continuing their fuzzy testing and developing PacketRusher, an unusual issue with the AMF was observed. The problem arises when a single Ethernet frame containing three bundled SCTP chunks is sent. This behavior is reproduced with PacketRusher when attempting to concurrently register two UEs with the same MSIN.

The expected behavior is that the PDU Session Establishment Accept is sent inside a DownlinkNASTransport to RAN UE NGAP ID 1. However, it is actually sent inside an InitialContextSetupRequest to RAN UE NGAP ID 2. The MAC of this NAS message is invalid for the Security Context of RAN UE NGAP ID 2 (probably valid for RAN UE NGAP ID 1)
 2024-01-13 23:16:50 +09:00
Sukchan Lee 689574a2d9 [AMF/MME] Fixed crash when no NG/S1 context(#2012) 2023-01-23 10:37:22 +09:00
Sukchan Lee 817007d0ae [AMF] Wrongly sending PDU Session Release (#1925) 2022-12-04 14:32:19 +09:00
Bostjan Meglic ab11220dcc [ALL] Fix differences in function parameter names between definition and declaration 2022-07-01 21:38:47 +09:00
Sukchan Lee 118d62d42d Add more memory log 2021-06-06 22:35:46 +09:00
Sukchan Lee 873cf398c7 [ALL] Add protection of message encoding (#991) 
All process will be forcely exited if it failed to encode the S1AP/NGAP/GTP/PFCP message. It is to make sure there was no problem with the encoding of open5gs.
 2021-05-16 12:22:10 +09:00
Sukchan Lee ea89d8dc8e [AMF] Added RANConfigurationUpdate (#943) 2021-04-16 16:26:13 +09:00
Sukchan Lee 49a9e58efe feat: Add N2-Handover 2021-01-28 14:23:54 -05:00
Sukchan Lee ada01fca8f spec: S1AP/NGAP update to v16.4.0(2021-01-04) 2021-01-24 23:43:42 -05:00
Sukchan Lee c9363b1320 5gc: Paging was added 2021-01-18 11:48:35 -05:00
Sukchan Lee 7b29cdf898 Handling UEContextRequest of InitialUEMessage 2021-01-07 22:26:06 -05:00
Sukchan Lee a96d3ca0fa feat: Add multiple session 2021-01-03 23:29:01 -05:00
Sukchan Lee 70a7bac6b2 feat: Add 5G Core Xn Handover (#726) 2021-01-03 00:50:59 -05:00
Sukchan Lee 9f24b7f295 Fix the AMF bug and add TLV log [#521] 2020-08-07 11:57:17 -04:00
Sukchan Lee 4d5b38c8f4 Fix the AMF crash [#521] 2020-07-30 22:10:20 -04:00
Sukchan Lee 6e84ac670d Bug fixed for 5G core 2020-06-25 00:37:29 -04:00
Sukchan Lee b35c2277be simple 5GC registration is done 2020-06-21 23:10:54 -04:00
Sukchan Lee dbee687a75 Add only one 5GC scenario (call-flow) 2020-06-17 01:22:28 -04:00
Sukchan Lee 72370ff0b2 Add AUSF, UDM, and UDR 2020-06-04 14:12:05 -04:00
Sukchan Lee 6ef5a746e5 NGSetup is added 2020-05-25 12:15:22 -04:00