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Add support for UECM Registration and Deregistration for a PDU Session (
#92) * Add support for UECM Registration and Deregistration for a PDU Session * Addressed the suggested comments to change the state in UeCmDeregistration() * fix: ci linter error --------- Co-authored-by: Ian Chen <iancodinghtml@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package consumer | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/pkg/errors" | ||
|
|
||
| "github.com/free5gc/openapi" | ||
| "github.com/free5gc/openapi/Nudm_UEContextManagement" | ||
| "github.com/free5gc/openapi/models" | ||
| smf_context "github.com/free5gc/smf/internal/context" | ||
| "github.com/free5gc/smf/internal/logger" | ||
| "github.com/free5gc/smf/internal/util" | ||
| ) | ||
|
|
||
| func UeCmRegistration(smCtx *smf_context.SMContext) ( | ||
| *models.ProblemDetails, error, | ||
| ) { | ||
| uecmUri := util.SearchNFServiceUri(smf_context.GetSelf().UDMProfile, models.ServiceName_NUDM_UECM, | ||
| models.NfServiceStatus_REGISTERED) | ||
| if uecmUri == "" { | ||
| return nil, errors.Errorf("SMF can not select an UDM by NRF: SearchNFServiceUri failed") | ||
| } | ||
|
|
||
| configuration := Nudm_UEContextManagement.NewConfiguration() | ||
| configuration.SetBasePath(uecmUri) | ||
| client := Nudm_UEContextManagement.NewAPIClient(configuration) | ||
|
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||
| registrationData := models.SmfRegistration{ | ||
| SmfInstanceId: smf_context.GetSelf().NfInstanceID, | ||
| SupportedFeatures: "", | ||
| PduSessionId: smCtx.PduSessionId, | ||
| SingleNssai: smCtx.SNssai, | ||
| Dnn: smCtx.Dnn, | ||
| EmergencyServices: false, | ||
| PcscfRestorationCallbackUri: "", | ||
| PlmnId: smCtx.Guami.PlmnId, | ||
| PgwFqdn: "", | ||
| } | ||
|
|
||
| logger.PduSessLog.Infoln("UECM Registration SmfInstanceId:", registrationData.SmfInstanceId, | ||
| " PduSessionId:", registrationData.PduSessionId, " SNssai:", registrationData.SingleNssai, | ||
| " Dnn:", registrationData.Dnn, " PlmnId:", registrationData.PlmnId) | ||
|
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||
| _, httpResp, localErr := client.SMFRegistrationApi.SmfRegistrationsPduSessionId(context.Background(), | ||
| smCtx.Supi, smCtx.PduSessionId, registrationData) | ||
| defer func() { | ||
| if httpResp != nil { | ||
| if rspCloseErr := httpResp.Body.Close(); rspCloseErr != nil { | ||
| logger.PduSessLog.Errorf("UeCmRegistration response body cannot close: %+v", | ||
| rspCloseErr) | ||
| } | ||
| } | ||
| }() | ||
|
|
||
| if localErr == nil { | ||
| smCtx.UeCmRegistered = true | ||
| return nil, nil | ||
| } else if httpResp != nil { | ||
| if httpResp.Status != localErr.Error() { | ||
| return nil, localErr | ||
| } | ||
| problem := localErr.(openapi.GenericOpenAPIError).Model().(models.ProblemDetails) | ||
| return &problem, nil | ||
| } else { | ||
| return nil, openapi.ReportError("server no response") | ||
| } | ||
| } | ||
|
|
||
| func UeCmDeregistration(smCtx *smf_context.SMContext) (*models.ProblemDetails, error) { | ||
| uecmUri := util.SearchNFServiceUri(smf_context.GetSelf().UDMProfile, models.ServiceName_NUDM_UECM, | ||
| models.NfServiceStatus_REGISTERED) | ||
| if uecmUri == "" { | ||
| return nil, errors.Errorf("SMF can not select an UDM by NRF: SearchNFServiceUri failed") | ||
| } | ||
|
|
||
| configuration := Nudm_UEContextManagement.NewConfiguration() | ||
| configuration.SetBasePath(uecmUri) | ||
| client := Nudm_UEContextManagement.NewAPIClient(configuration) | ||
|
|
||
| httpResp, localErr := client.SMFDeregistrationApi.Deregistration(context.Background(), | ||
| smCtx.Supi, smCtx.PduSessionId) | ||
| defer func() { | ||
| if httpResp != nil { | ||
| if rspCloseErr := httpResp.Body.Close(); rspCloseErr != nil { | ||
| logger.ConsumerLog.Errorf("UeCmDeregistration response body cannot close: %+v", | ||
| rspCloseErr) | ||
| } | ||
| } | ||
| }() | ||
| if localErr == nil { | ||
| smCtx.UeCmRegistered = false | ||
| return nil, nil | ||
| } else if httpResp != nil { | ||
| if httpResp.Status != localErr.Error() { | ||
| return nil, localErr | ||
| } | ||
| problem := localErr.(openapi.GenericOpenAPIError).Model().(models.ProblemDetails) | ||
| return &problem, nil | ||
| } else { | ||
| return nil, openapi.ReportError("server no response") | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| package util | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/free5gc/openapi/models" | ||
| ) | ||
|
|
||
| func SearchNFServiceUri(nfProfile models.NfProfile, serviceName models.ServiceName, | ||
| nfServiceStatus models.NfServiceStatus, | ||
| ) (nfUri string) { | ||
| if nfProfile.NfServices != nil { | ||
| for _, service := range *nfProfile.NfServices { | ||
| if service.ServiceName == serviceName && service.NfServiceStatus == nfServiceStatus { | ||
| if nfProfile.Fqdn != "" { | ||
| nfUri = nfProfile.Fqdn | ||
| } else if service.Fqdn != "" { | ||
| nfUri = service.Fqdn | ||
| } else if service.ApiPrefix != "" { | ||
| nfUri = service.ApiPrefix | ||
| } else if service.IpEndPoints != nil { | ||
| point := (*service.IpEndPoints)[0] | ||
| if point.Ipv4Address != "" { | ||
| nfUri = getSbiUri(service.Scheme, point.Ipv4Address, point.Port) | ||
| } else if len(nfProfile.Ipv4Addresses) != 0 { | ||
| nfUri = getSbiUri(service.Scheme, nfProfile.Ipv4Addresses[0], point.Port) | ||
| } | ||
| } | ||
| } | ||
| if nfUri != "" { | ||
| break | ||
| } | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| func getSbiUri(scheme models.UriScheme, ipv4Address string, port int32) (uri string) { | ||
| if port != 0 { | ||
| uri = fmt.Sprintf("%s://%s:%d", scheme, ipv4Address, port) | ||
| } else { | ||
| switch scheme { | ||
| case models.UriScheme_HTTP: | ||
| uri = fmt.Sprintf("%s://%s:80", scheme, ipv4Address) | ||
| case models.UriScheme_HTTPS: | ||
| uri = fmt.Sprintf("%s://%s:443", scheme, ipv4Address) | ||
| } | ||
| } | ||
| return | ||
| } |