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39 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 85981effc7 [AMF/AMF] Not assert for ogs_asn_copy_ie() (#2018) 
Does not raise an assertion even if open5gs cannot handle the ASN in
ogs_asn_copy_ie()
 2023-01-25 23:16:59 +09:00
mitmitmitm ea09a7921a [AMF] Handle am-data/subscribedUeAmbr change notification 
When such a notification arrives from UDM, notify the GNB of the new values
AMBR uplink/downlink values.
 2022-11-29 23:10:49 +09:00
mitmitmitm 9364cd7513 [AMF] Allow unspecified (infinity) ue_ambr up/downlink limits 2022-11-29 23:10:49 +09:00
Sukchan Lee eb50d64271 Add more protection code for (#1652) 2022-07-21 17:13:32 +09:00
Sukchan Lee 018b352985 [AMF] fix the UE-AMBR in NGAP message (#979) 
1. DownlinkNASTransport
If AMF has not sent it previously, UE-AMBR is included in Registration
accept.

2. InitialContextSetupRequest
If PDUSessionResourceSetup is available, UE-AMBR is included

3. PDUSessionResourceSetupRequest
If AMF has not sent it previously, UE-AMBR is included

4. HandoverRequest
If PDUSessionResourceSetup is available, UE-AMBR is included
 2021-05-07 21:18:45 +09:00
Sukchan Lee ea89d8dc8e [AMF] Added RANConfigurationUpdate (#943) 2021-04-16 16:26:13 +09:00
Sukchan Lee cc03c91bdd [AMF] 5G-GUTI generation changed (#910) 
The AMF shall assign a new 5G-GUTI for a particular UE:
a) during  a successful initial registration procedure;
b) during a successful registration procedure
   for mobility registration update; and
c) after a successful service request procedure invoked as a response
   to a paging request from the network and before the release
   of the N1 NAS signalling connection as specified in subclause 5.4.4.1.

The AMF should assign a new 5G-GUTI for a particular UE
during a successful registration procedure
for periodic registration update. The AMF may assign a new 5G-GUTI
at any time for a particular UE by performing
the generic UE configuration update procedure.
 2021-04-13 17:34:25 +09:00
Sukchan Lee 52cd51ca6a fix: adjust the actual path amf.plmn_support (#825) 2021-03-20 09:17:14 +09:00
Sukchan Lee 0270c0e340 ASN.1 encoding failure if no Request-NSSAI #844 2021-03-12 23:25:58 +09:00
Sukchan Lee 9af4268bab arch: DB schema Changes (#796) 
- New function : NSSF
- New feature : SMF selection
 2021-03-08 21:25:09 +09:00
Sukchan Lee 373ba1452f log: update debug info for S1AP/NGAP (#785) 2021-02-01 08:52:22 -05:00
smartVan 848b7ffc29
modify handover request and uplink ran status transfer debug info (#785) 2021-02-01 00:50:22 -05:00
Sukchan Lee ff5236f3e0 feat: Indirect Data Forwarding in N2-Handover 2021-01-31 23:01:15 -05:00
Sukchan Lee 388e64213f etc: miscellaneous work (#779) 
o Check IMEISV length == 16 digits
o Add Relative Capabity comment in the configuration file
 2021-01-29 00:10:17 -05:00
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 235a041b8d feat: Add dedicated QoS flow 2020-12-31 21:07:08 -05:00
Sukchan Lee 93312e8f3d Fix the bug for S1-reset or eNB-restart(#627) 2020-10-28 22:59:27 -04:00
Sukchan Lee c424099200 Need to test later! 2020-10-14 23:02:18 -04:00
list1982 06ec924466
Update ngap-build.c (#607) 
add path switch request ack
 2020-10-14 22:56:29 -04:00
Sukchan Lee ce8d10e4fc rollback [#565] 2020-09-12 12:16:08 -04:00
Sukchan Lee 344dad1e8a Try to troubleshoot [#565] 2020-09-11 10:22:31 -04:00
Sukchan Lee 8e048be082 Release v2.0.0 2020-08-21 23:33:45 -04:00
Sukchan Lee bcffdd823e Re-factoring 5GC for solving crash issue 2020-08-02 23:22:41 -04:00
Sukchan Lee 3b0db8c384 Fix the bug for Release-16 2020-07-03 01:03:13 -04:00
Sukchan Lee d9743286c5 Add PDU Session Release [#488] 2020-07-02 01:50:23 -04:00
Sukchan Lee 2dfeade346 All known memory problem is solved. 2020-06-27 14:28:14 -04:00
Sukchan Lee ca4ee27e84 more bug is fixed 2020-06-27 00:46:06 -04:00
Sukchan Lee d652075ab9 a couple of bug is fixed 2020-06-24 00:33:10 -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