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57 Commits

Author SHA1 Message Date
Sukchan Lee 11aac6a164 [CORE] Rollback ogs_pkbuf_copy() from (#2012) 
In the previous #2012 working, I've added ogs_pkbuf_free() for original
buffer. But, this rasied double free. So, I've rollback it,
 2023-01-24 00:17:10 +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 01a7b3c9b8 Follow-up on #1991 2023-01-14 09:20:52 +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 4510176da2 [MME] Clear UE Context for Attach Reject (#1848) 
Attach Reject + PDN Connectivity Reject need to clear UE Context
 2022-12-27 21:08:48 +09:00
Sukchan Lee 242b138597 [MME] UE-initiated detach removes S1 only (#1698) 2022-08-20 01:08:20 +09:00
Sukchan Lee 9bb9a4cae9 [MME] Detach removed MME-UE context (#1698) 2022-08-20 00:17:55 +09:00
Sukchan Lee 321c8d4cf9 [SGsAP] Changed message if Paging failed (#1701) 
The problem occurred in the following scenario:

1. VLR sent PAGING-REQUEST to the MME
2. MME sent S1-Paging to the UE
3. Paging failed
4. MME responded SERVICE-REQUEST to the VLR
5. VLR sent DOWNLINK-UNITDATA to the MME
6. Even though there is no S1 Context,
   MME try to sent DownlinkNASTransport message to the UE.
7. So, the problem occurred.

I've changed the number 4 PAGING-REJECT instead of SERVICE-REQUEST.
 2022-08-19 18:58:55 +09:00
Sukchan Lee a9694d6474 [MME] Follow-up Cancel Location Handling (#1698) 2022-08-19 16:52:39 +09:00
Sukchan Lee 4cb657c804 [MME] Changed CauseNas_detach in DETACH (#1676) 2022-08-06 14:00:54 +09:00
Sukchan Lee 7031856cd7 [MME] Changed S1AP_Cause in S1AP Release (#1676) 
S1AP_CauseNas_detach -> S1AP_CauseNas_normal_release
 2022-07-31 12:38:11 +09:00
Sukchan Lee 5524dc5e29 Refact paging module (#1676) 2022-07-30 14:44:34 +09:00
jmasterfunk84 47cbaca149 [MME] Introduce support for S6a Cancel Location Request 
- Added diameter dictionary definitions for Cancel Location
- Cancel Location will completely remove UE from MME, allow for a fresh IMSI attach to occur on next attempt.
- T3422 is used for detach request.
- Added new handling for s6a events in mme-sm, as not all s6a messages are at attach now.  Maybe there's something in a state machine I should've been using here instead of a new flag?

- Testing was completed with UE in idle and connected.  With CLR flags indicating re-attach required and without.  Also sending CLR after UE detach.  And then sending again when mme_ue is empty.
 2022-07-30 14:37:43 +09:00
Sukchan Lee 668cc59f94 [AMF] Fixed 5GMM cause in Reject message (#1660) 
When a UE that requests slices tries to connect and there are no slices configured, the reject message is:

5GMM cause = 0x7 (5GS Services not allowed)

however it should be:

5GMM cause = 0x3e (No network slices available)

All 5GMM cause value in reject message is reviewed in this commit
 2022-07-19 12:42:02 +09:00
Sukchan Lee b58ebda556 Change Default MCC/MNC 901/70 -> 999/70 (#1331) 2022-06-23 21:37:47 +09:00
Sukchan Lee 433d5f6bf3 Distinguish the type of session creation 2022-04-14 17:34:55 +09:00
Sukchan Lee 37af21a88d [MEM] fix the pkbuf problem (#1431) 2022-03-22 22:47:45 +09:00
Sukchan Lee bf77318602 [MME] re-factor to check a piggybacked ESM (#1431) 2022-03-16 20:48:48 +09:00
Sukchan Lee af5b3aa931 [MME/AMF] fix the crash during timeout (#1122) 2021-08-08 12:38:15 +09:00
Sukchan Lee 50f403279a [AMF/MME] fix the crash bug (#1061) 2021-06-22 16:13:06 +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 dcfc9ef803 [AMF/MME] Add retransmission for accept message 
Registration accept with GUTI
Attach accept
Tracking area update request with GUTI
 2021-04-23 15:16:18 +09:00
Sukchan Lee 5fb0611cb2 fix: Derive ESM cause from GTP-Cause (#755) 2021-01-10 23:36:12 -05:00
Sukchan Lee 830587a250 Fix the possible vulnerabilities 2020-11-07 21:25:53 -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 15e42bc4a9 Fix MME crash when VoLTE is enabled [#619] 2020-10-22 17:53:13 -04:00
Sukchan Lee 39aa726543 Remove the redundant assertion (#619) 2020-10-20 22:50:44 -04:00
Sukchan Lee d64db21050 Use GTP-U Buffering instead of Deletion[#592,#568] 2020-10-07 21:21:48 -04:00
Sukchan Lee 88399da5b6 Fix release access bearer #592 2020-10-01 13:27:58 -04:00
Sukchan Lee 3554419d97 Fix the connection refused bug [#568, #551] 2020-09-24 21:29:48 -04:00
Sukchan Lee 7ae1600e04 Add exception handling for #568 
If packet buffer is exhausted, the packet is sliently discarded
 2020-09-18 19:39:02 -04:00
Sukchan Lee 519de9ef68 Fix the bug GUTI not present case [#551] 2020-09-10 14:04:26 -04:00
Sukchan Lee 7f9f6fc3f2 rollback ogs_expect() [#551] 2020-09-08 22:17:13 -04:00
Sukchan Lee 160490483a Fix the many UEs issues [#551] 2020-09-07 22:02:45 -04:00
Sukchan Lee 4d023d0de0 fix overflow bug in the packet memory pool 2020-09-06 23:53:38 -04:00
Sukchan Lee 300123d990 Bug fixed for 5GC 2020-06-23 00:35:41 -04:00
Sukchan Lee 6f6800b52e NGAP is added 2020-05-22 22:24:48 -04:00
Sukchan Lee d191a5135e Add Bearer Resource Modification feature (#336) 2019-12-28 21:46:30 +09:00
Sukchan Lee f06a8b92fe change ogs_expect() to ogs_assert() (#323) 2019-12-13 13:44:22 +09:00
Spencer Sevilla b86658e173 small stability fixes that were causing crashes in Bokondini (#323) 2019-12-13 13:25:52 +09:00
Sukchan Lee 636170e0da Review ogs_expect() (#314) 2019-11-30 16:45:09 +09:00
Spencer Sevilla 5b59f09d9f ogs_assert to ogs_expects (#314) 
* HACK: Don't retransmit InitialContextSetupReq

Related: #256

* HACK: Don't use buggy sa1p_copy()  in eNBConfigTransfer

Related: #257

* mme: don't reject with 'IMSI is unknown in HLR' (permanent reject)

* MME: Implement S6a result -> EMM cause code mapping

Closes: #263

* Spencer: modification to Haralds fix because macros are now renamed

* MME: don't assert on MAC failures of uplink NAS frames

Closes: #267

* MME: Avoid ogs_assert() in many situations

We don't want to crash the entire program just because a message
received from an external entity didn't match some of our expectations.

* compiles fine, checked DIFFs and only difference is the ogs_assert -> ogs_expect
 2019-11-29 15:31:22 +09:00
Sukchan Lee f3ccd71db0 [#263] map S6a diameter codes to EMM codes 2019-11-18 10:20:48 +09:00
Sukchan Lee a622feac84 [#256] Remove timer of NAS message related to S1AP 2019-11-18 09:04:10 +09:00
Sukchan Lee c8bcfffe2e [#258] All GTP message is fixed not to crash 2019-11-15 23:56:55 +09:00
Sukchan Lee 3c8af69805 Re-factoring the all library 2019-09-13 21:07:47 +09:00
Sukchan Lee ae3e59053d [#220] Timer for UE Context Release 2019-07-21 01:03:19 +09:00
Sukchan Lee 5ce04bcc6f [#220] T3489 done 2019-07-20 23:06:54 +09:00
Sukchan Lee 6a1f628e44 [#220] T3450 done 2019-07-20 22:30:53 +09:00