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61 Commits

Author SHA1 Message Date
Pau Espin e3da7c9934
Rename GTPv2C specifics to gtp2 prefix (#1485) 
In the past only GTPv2C was supported, and had the "gtp" generic prefix.
Later on, GTPv1C support was added, and "gtp1" prefix was used.
Let's move GTPv2C specific bits to have "gtp2" prefix too, and leave
"gtp" prefix for generic stuff among different GTP versions.
 2022-04-13 07:07:39 +09:00
Sukchan Lee 37af21a88d [MEM] fix the pkbuf problem (#1431) 2022-03-22 22:47:45 +09:00
Sukchan Lee af5b3aa931 [MME/AMF] fix the crash during timeout (#1122) 2021-08-08 12:38:15 +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 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 fc5c9b2af0 Try to fix the UE infinite attach (#568) 
If both Delete-Session-Request/Response and
UEContextReleaseCommand/UEContextReleaseComplete are failed at the same time,
UE cannot attach to the EPC infinitely.

So, I've add the protection code
if timer expires when MME does not receive Delete-Session-Response.
 2021-03-09 14:28:07 +09:00
Sukchan Lee c9cfc4cf6e etc: update debug message 2021-01-04 23:24:22 -05:00
Sukchan Lee 830587a250 Fix the possible vulnerabilities 2020-11-07 21:25:53 -05:00
Sukchan Lee f1a207fd9b Support VoLTE service in ECM-IDLE 2020-11-07 17:27:12 -05:00
Sukchan Lee 5af01d1a71 Add the exception for no 2G/3G environment #627 2020-11-03 05:54:12 -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 d64db21050 Use GTP-U Buffering instead of Deletion[#592,#568] 2020-10-07 21:21:48 -04:00
Sukchan Lee 1129440061 Fix the warning 2020-10-01 13:37:23 -04:00
Sukchan Lee 88399da5b6 Fix release access bearer #592 2020-10-01 13:27:58 -04:00
Sukchan Lee 62d95be036 Add EMM/GMM handler in exception state [#569] 2020-09-22 13:27:58 -04:00
Sukchan Lee d73ff77031 We cannot initialize the state in all cases. [#569] 
In TS24.501 Ch 5.5.1.3.8 Abnormal cases on the network side

d) REGISTRATION REQUEST with 5GS registration type IE set to
"mobility registration updating" or "periodic registration updating"
received after the REGISTRATION ACCEPT message has been sent and
before the REGISTRATION COMPLETE message is received.

Since, we have to do this special case, it is desirable
to handle it directly inside the state(gmm-sm.c).
 2020-09-21 14:37:17 -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 8e048be082 Release v2.0.0 2020-08-21 23:33:45 -04:00
Sukchan Lee 3b0db8c384 Fix the bug for Release-16 2020-07-03 01:03:13 -04:00
Sukchan Lee fae342ecce Apply Release-16 in 4G EPC(S1AP,NAS,GTP) 2020-07-01 00:22:55 -04:00
Sukchan Lee 72370ff0b2 Add AUSF, UDM, and UDR 2020-06-04 14:12:05 -04:00
Sukchan Lee 6f6800b52e NGAP is added 2020-05-22 22:24:48 -04:00
Sukchan Lee 7b5f9520d9 check auth length for sanity 2020-04-02 20:43:22 -04:00
Sukchan Lee 9c150253d9 fix the #384 issue bug 
If Initial UE Message with Service Request is received and
   There is no Session Context
     (e.g due to UEContextReleaseRequest or InitialContextSetupFailure)
MME will sends Service Reject NAS message.
 2020-03-25 14:02:06 -04:00
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 552305afe2 Add IMEISV Request 2019-11-18 19:34:28 +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 235121c82d [#231] Create simulator 2019-07-21 15:14:31 +09:00
Sukchan Lee 5e78b78166 [CSFB] Implement SGsAP UE-UNREACHABLE message 2019-07-21 13:08:21 +09:00
Sukchan Lee 60c0eff085 [#226] Protect Integrity in Security-mode Complete 2019-07-21 11:42:12 +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
Sukchan Lee b34dafcb09 [#220] T3470 done 2019-07-20 21:49:47 +09:00
Sukchan Lee 90290d236e [#220] T3460 done 2019-07-20 21:28:36 +09:00
Sukchan Lee 805869da4f [#220] Guard timer instance is created 2019-07-20 20:38:03 +09:00
Sukchan Lee 6dc66bce85 [TIMER] timer configuration is added 2019-07-20 16:25:09 +09:00
Sukchan Lee c1c0b640f3 [TIMER] Move S1-Delayed-Send to the FSM 2019-07-20 15:16:46 +09:00
Sukchan Lee 9565967517 [TIMER] Move timer expiration work to the FSM 2019-07-20 13:07:40 +09:00
Sukchan Lee 99d91da6eb Clarify code for pull request (#223) 2019-07-14 11:00:11 +09:00
Sukchan Lee 7d42465f4e [Done] SMS over SGs 2019-07-13 22:52:50 +09:00
Sukchan Lee 8e37f64c33 [SMS] MO-SMS Done 2019-07-13 14:51:35 +09:00
Sukchan Lee 663861d17b [SMS] Add MO-SMS 2019-07-13 11:51:28 +09:00