feat: setting the FTUP flag and allocation of TEID

[arxxm]

No description provided.

[s5uishida]

Hi,

When I applied this Pull Request and tried to work with free5GC, the following error occurred on free5GC.
Also, N3 and N4 are different addresses. I don't think free5GC supports FTUP, so first I tried to confirm the current behavior that is not FTUP.

2023-11-09T10:52:50.787596981+09:00 [INFO][SMF][PduSess] Sending PFCP Session Establishment Request
2023-11-09T10:52:50.788031257+09:00 [INFO][AMF][Gmm][amf_ue_ngap_id:RU:1,AU:1(3GPP)][supi:SUPI:imsi-001010000000000] create smContext[pduSessionID: 1] Success
2023-11-09T10:52:50.800565396+09:00 [WARN][SMF][PFCP] Read PFCP error: None of V4 and V6 flags is set
2023-11-09T10:52:53.793694112+09:00 [WARN][SMF][PFCP] Read PFCP error: None of V4 and V6 flags is set
2023-11-09T10:52:56.806546313+09:00 [WARN][SMF][PFCP] Read PFCP error: None of V4 and V6 flags is set
2023-11-09T10:52:59.791144414+09:00 [WARN][SMF][PduSess] Sending PFCP Session Establishment Request error: Request Transaction [5]: retry-out

FYI.

[arxxm]

Hi,

When I tried with free5GC on 120-upf-ftup-fteid branch, a parsing error occurred regarding the SDF Filter shown by the arrow.

free5GC version used commit:e48e933dde6bad3a83f6cd327003eeba6992abfa (2023.11.03)

Just a quick report.

2023/11/25 20:40:26 INF Got Session Establishment Request from: 192.168.14.141.
2023/11/25 20:40:26 INF 
Session Establishment Request:
  CreatePDR ID: 1 
    Outer Header Removal: 0 
    FAR ID: 1 
    QER ID: 2 
    QER ID: 1 
    URR ID: 1 
    Source Interface: 0 
    TEID: 1 
    Ipv4: 192.168.13.151 
    Ipv6: <nil> 
    UE IPv4 Address: 10.60.0.1 
  CreatePDR ID: 2 
    FAR ID: 2 
    QER ID: 2 
    QER ID: 1 
    URR ID: 1 
    Source Interface: 2 
    UE IPv4 Address: 10.60.0.1 
  CreatePDR ID: 3 
    Outer Header Removal: 0 
    FAR ID: 3 
    QER ID: 1 
    QER ID: 3 
    URR ID: 1 
    Source Interface: 0 
    TEID: 1 
    Ipv4: 192.168.13.151 
    Ipv6: <nil> 
    UE IPv4 Address: 10.60.0.1 
    SDF Filter: permit out ip from 10.60.0.0/16 to any <--
  CreatePDR ID: 4 
    FAR ID: 4 
    QER ID: 1 
    QER ID: 3 
    URR ID: 1 
    Source Interface: 2 
    UE IPv4 Address: 10.60.0.1 
    SDF Filter: permit out ip from any to 10.60.0.0/16 
  CreateFAR ID: 1 
    Apply Action: [2] 
    Forwarding Parameters:
      Network Instance:internet 
  CreateFAR ID: 2 
    Apply Action: [2] 
    Forwarding Parameters:
  CreateFAR ID: 3 
    Apply Action: [2] 
    Forwarding Parameters:
      Network Instance:internet 
  CreateFAR ID: 4 
    Apply Action: [2] 
    Forwarding Parameters:
  CreateQER ID: 3 
    Gate Status DL: 0 
    Gate Status UL: 0 
    QFI: 2 
  CreateQER ID: 2 
    Gate Status DL: 0 
    Gate Status UL: 0 
    QFI: 1 
  CreateQER ID: 1 
    Gate Status DL: 0 
    Gate Status UL: 0 
    Max Bitrate DL: 1000000 
    Max Bitrate UL: 1000000 
    QFI: 0 
  CreateURR ID: 1 
    Measurement Method: 2 
    Volume Threshold: &{Flags:6 TotalVolume:0 UplinkVolume:1000 DownlinkVolume:1000} 
  CreateURR ID: 2 
    Measurement Method: 2 
    Volume Threshold: &{Flags:6 TotalVolume:0 UplinkVolume:1000 DownlinkVolume:1000} 

2023/11/25 20:40:26 INF WARN: No OuterHeaderCreation
2023/11/25 20:40:26 INF Saving FAR info to session: 1, {Action:2 OuterHeaderCreation:0 Teid:0 RemoteIP:0 LocalIP:2534254784 TransportLevelMarking:0}
2023/11/25 20:40:26 INF WARN: No OuterHeaderCreation
2023/11/25 20:40:26 INF Saving FAR info to session: 2, {Action:2 OuterHeaderCreation:0 Teid:0 RemoteIP:0 LocalIP:2534254784 TransportLevelMarking:0}
2023/11/25 20:40:26 INF WARN: No OuterHeaderCreation
2023/11/25 20:40:26 INF Saving FAR info to session: 3, {Action:2 OuterHeaderCreation:0 Teid:0 RemoteIP:0 LocalIP:2534254784 TransportLevelMarking:0}
2023/11/25 20:40:26 INF WARN: No OuterHeaderCreation
2023/11/25 20:40:26 INF Saving FAR info to session: 4, {Action:2 OuterHeaderCreation:0 Teid:0 RemoteIP:0 LocalIP:2534254784 TransportLevelMarking:0}
2023/11/25 20:40:26 INF Saving QER info to session: 3, {GateStatusUL:0 GateStatusDL:0 Qfi:2 MaxBitrateUL:0 MaxBitrateDL:0 StartUL:0 StartDL:0}
2023/11/25 20:40:26 INF Saving QER info to session: 2, {GateStatusUL:0 GateStatusDL:0 Qfi:1 MaxBitrateUL:0 MaxBitrateDL:0 StartUL:0 StartDL:0}
2023/11/25 20:40:26 INF Saving QER info to session: 1, {GateStatusUL:0 GateStatusDL:0 Qfi:0 MaxBitrateUL:1000000000 MaxBitrateDL:1000000000 StartUL:0 StartDL:0}
2023/11/25 20:40:26 Matched groups: []
2023/11/25 20:40:26 ERR SDFFilter err: SDF Filter: bad formatting. Should be compatible with regexp: ^permit out (icmp|ip|tcp|udp|\d+) from (any|[\d.]+|[\da-fA-F:]+)(?:/(\d+))?(?: (\d+|\d+-\d+))? to (assigned|[\d.]+|[\da-fA-F:]+)(?:/(\d+))?(?: (\d+|\d+-\d+))?$
2023/11/25 20:40:26 ERR error extracting PDR info: SDF Filter: bad formatting. Should be compatible with regexp: ^permit out (icmp|ip|tcp|udp|\d+) from (any|[\d.]+|[\da-fA-F:]+)(?:/(\d+))?(?: (\d+|\d+-\d+))? to (assigned|[\d.]+|[\da-fA-F:]+)(?:/(\d+))?(?: (\d+|\d+-\d+))?$
2023/11/25 20:40:26 Matched groups: [permit out ip from any to 10.60.0.0/16 ip any   10.60.0.0 16 ]
2023/11/25 20:40:26 INF Session Establishment Request from 192.168.14.141 accepted.
2023/11/25 20:40:26 INF Got Session Modification Request from: 192.168.14.141. 

2023/11/25 20:40:26 INF Finding association for 192.168.14.141
2023/11/25 20:40:26 INF Finding session 2
2023/11/25 20:40:26 INF 
Session Modification Request:
  UpdatePDR ID: 2 
    FAR ID: 2 
    Source Interface: 2 
    UE IPv4 Address: 10.60.0.1 
  UpdatePDR ID: 4 
    FAR ID: 4 
    Source Interface: 2 
    UE IPv4 Address: 10.60.0.1 
    SDF Filter: permit out ip from any to 10.60.0.0/16 
  UpdateFAR ID: 2 
    Apply Action: [2] 
    Update forwarding Parameters:
      Network Instance:internet 
      Outer Header Creation: &{OuterHeaderCreationDescription:256 TEID:1 IPv4Address:192.168.13.131 IPv6Address:<nil> PortNumber:0 CTag:0 STag:0} 
  UpdateFAR ID: 4 
    Apply Action: [2] 
    Update forwarding Parameters:
      Network Instance:internet 
      Outer Header Creation: &{OuterHeaderCreationDescription:256 TEID:1 IPv4Address:192.168.13.131 IPv6Address:<nil> PortNumber:0 CTag:0 STag:0} 

2023/11/25 20:40:26 INF Updating FAR info: 2, {FarInfo:{Action:2 OuterHeaderCreation:1 Teid:1 RemoteIP:2198710464 LocalIP:2534254784 TransportLevelMarking:0} GlobalId:1}
2023/11/25 20:40:26 INF Updating FAR info: 4, {FarInfo:{Action:2 OuterHeaderCreation:1 Teid:1 RemoteIP:2198710464 LocalIP:2534254784 TransportLevelMarking:0} GlobalId:3}
2023/11/25 20:40:26 INF Both F-TEID IE and UE IP Address IE are missing
2023/11/25 20:40:26 INF Both F-TEID IE and UE IP Address IE are missing

@s5uishida
Thank you for your comment
it's fixed

[s5uishida]

Hi @arxxm

I have confirmed that this error no longer occurs.

Thank you very much!