Enable SUCI in AGW

[jao-tm]

Hi all,
Has anyone tested the SUCI features? I've tried to implement it, but get the error message subscriberdb[2145211]: ERROR:grpc._server:Exception calling application: An X25519 private key is 32 bytes long when I try to attach. Key pairs has been generated with openssl genpkey -algorithm X25519 and added to UE sim card and Magma network. In the documentation I can only find the SUCI Extensions page which doesn't provide any debug steps.

[panyogesh]

It was tested as part of 1.8 on Spirent. I will share the details shortly.

[mickymkumar]

Hi @jao-tm ,

We have tried today SUCI features testing and all is sucessful.

Please find the logs below for reference.

Thank you and regards,
Micky Kumar

spirent_SUCI_REG_PDU_Traffic_1UE_2023_10_11.zip
spirent_SUCI_REG_PDU_Traffic_Scaling_UE_2023_10_11.zip

[jao-tm]

Any guide on how you implemented this? Both AGW and UE side. I've tried several combinations but always get the An X25519 private key is 32 bytes long error.

[mickymkumar]

I just followed the documentation..
If support needed, we can do a call. -just share your availability

[panyogesh]

@jao-tm : Have documented the steps in the link. Kindly have a look and if you are facing any issues please raise a new github discussion/issues

[panyogesh]

Closing it for now.

[jao-tm]

Hi, I've went through the link and unfortunately it still doesn't work. I tested with UERANSIM and COTS UE. Seems like only part of the IMSI is parsed to the AMF, as the IMSI starts with 000099970 and not 99970.

001881 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_amf.c           :0086    Received msg from :[TASK_SCTP] id:[113] name:[SCTP_DATA_IND]
001882 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_client_servicer.:0063    Sending msg to :[TASK_AMF_APP] id: [88]-[NGAP_INITIAL_UE_MESSAGE]
001883 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 ERROR AMF-AP tasks/amf/deregistration_request:0371    UE Context not found!
 gnb_ue_ngap_ue_id 173 amf_ue_ngap_id 38, GUTI  not in GUTI collection
001884 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_app_main.cpp      :0063    Received msg from :[TASK_NGAP] id:[88] name:[NGAP_INITIAL_UE_MESSAGE]
001885 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_client_servicer.cp:0031    Sending msg to :[TASK_NGAP] id: [136]-[AMF_APP_NGAP_AMF_UE_ID_NOTIFICATION]
001886 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/nas5g_message.cpp     :0195    Decoded msg(nas5g) id: [41]-name [REG_REQUEST]
001887 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_recv.cpp          :0288    Received registration type INITIAL REGISTRATION TYPE
001888 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  NAS-AM tasks/amf/Registration.cpp      :1121    Sending msg(grpc) to :[subscriberdb] for ue: [39] decrypt-imsi
001889 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_amf.c           :0086    Received msg from :[TASK_AMF_APP] id:[136] name:[AMF_APP_NGAP_AMF_UE_ID_NOTIFICATION]
001890 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_app_main.cpp      :0063    Received msg from :[TASK_GRPC_SERVICE] id:[142] name:[AMF_APP_DECRYPT_MSIN_INFO_RESP]
001891 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  NAS-AM tasks/amf/amf_fsm.cpp           :0205    [STATE_EVENT_REG_REQUEST] Event triggered, UE switches from [DEREGISTERED] to [COMMON_PROCEDURE_INITIATED1] and PDU session :[SESSION_NULL]
001892 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_authentication.cpp:0178    Sending msg(grpc) to :[subscriberdb] for ue: [000099970008000] auth-info
001893 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_app_main.cpp      :0063    Received msg from :[TASK_GRPC_SERVICE] id:[140] name:[AMF_APP_SUBS_AUTH_INFO_RESP]
001894 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 ERROR NAS-AM tasks/amf/nas_proc.cpp          :0817    result=5001, nb_of_vectors received is zero from subscriberdb
001895 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 WARNI NAS-AM tasks/amf/Registration.cpp      :0338    AMF-PROC  - AMF Registration procedure not accepted
001896 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  NAS-AM tasks/amf/amf_as.cpp            :1471    AMFAS-SAP - Send Registration Reject message (cause=3)
001897 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/nas5g_message.cpp     :0327    Encoded msg(nas5g) id: [44]-name [UNKNOWN]
001898 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_client_servicer.cp:0031    Sending msg to :[TASK_NGAP] id: [87]-[NGAP_NAS_DL_DATA_REQ]
001899 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_app_msg.cpp       :0049   [99970008000] Sending UE Context Release Cmd to NGAP for (ue_id = 39)
001900 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_app_msg.cpp       :0055   [99970008000] UE Context Release Cause = (5)
001901 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 INFO  AMF-AP tasks/amf/amf_client_servicer.cp:0031    Sending msg to :[TASK_NGAP] id: [85]-[NGAP_UE_CONTEXT_RELEASE_COMMAND]
001902 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_amf.c           :0086    Received msg from :[TASK_AMF_APP] id:[87] name:[NGAP_NAS_DL_DATA_REQ]
001903 Thu Nov 16 13:31:48 2023 7FD1D57E6700 NOTIC NGAP   tasks/ngap/ngap_amf_nas_procedur:0525   [99970008000] Send NGAP DOWNLINK_NAS_TRANSPORT message ue_id = 39 AMF_UE_NGAP_ID = 39 gNB_UE_NGAP_ID = 174
001904 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_client_servicer.:0063    Sending msg to :[TASK_SCTP] id: [112]-[SCTP_DATA_REQ]
001905 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_amf.c           :0086    Received msg from :[TASK_AMF_APP] id:[85] name:[NGAP_UE_CONTEXT_RELEASE_COMMAND]
001906 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 WARNI AMF-AP tasks/amf/amf_app_ue_context.cpp:0365     amf_ue_ngap_id 39does not exist
001907 Thu Nov 16 13:31:48 2023 7FD1D9FEF700 ERROR AMF-AP tasks/amf/amf_app_ue_context.cpp:0882    Ue Context Release Timer: ue_amf_context is NULL for ue id: 39
001908 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_amf.c           :0086    Received msg from :[TASK_SCTP] id:[113] name:[SCTP_DATA_IND]
001909 Thu Nov 16 13:31:48 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_amf_handlers.c  :0952    UE CONTEXT RELEASE REQUEST with Cause_Type = Radio Network and Cause_Value = 22
001910 Thu Nov 16 13:31:54 2023 7FD1D57E6700 INFO  NGAP   tasks/ngap/ngap_amf.c           :0086    Received msg from :[TASK_SCTP] id:[113] name:[SCTP_DATA_IND]

[panyogesh]

What is the MCC and MNC in your case. Also is your IMSI: 000099970008000 ?

[jao-tm]

MCCMNC 999-70. IMSI 999700000068373