X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=pkg%2Fcontrol%2Fcontrol.go;h=d5a92b64e1e322d6e6b924e1bd12d1cf9e688954;hb=8046c70a77be2de39ffda0092b1d86008145d81a;hp=8a06174e998a1d592cfa41b8042e14bdc962e6fa;hpb=90fa02136dc7e56db75ce353e69571eb3cb0eb69;p=ric-plt%2Fsubmgr.git diff --git a/pkg/control/control.go b/pkg/control/control.go old mode 100644 new mode 100755 index 8a06174..d5a92b6 --- a/pkg/control/control.go +++ b/pkg/control/control.go @@ -19,8 +19,6 @@ package control -import "C" - import ( "errors" rtmgrclient "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/rtmgr_client" @@ -30,25 +28,27 @@ import ( "github.com/go-openapi/strfmt" "github.com/spf13/viper" "math/rand" + "sync" "time" - "sync" ) -var subReqTime time.Duration = 2 * time.Second -var SubDelReqTime time.Duration = 2 * time.Second +var subReqTime time.Duration = 5 * time.Second +var subDelReqTime time.Duration = 5 * time.Second +var maxSubReqTryCount uint64 = 2 // Initial try + retry +var maxSubDelReqTryCount uint64 = 2 // Initial try + retry type Control struct { - e2ap *E2ap - registry *Registry - rtmgrClient *RtmgrClient - tracker *Tracker - timerMap *TimerMap - rmrSendMutex *sync.Mutex + e2ap *E2ap + registry *Registry + rtmgrClient *RtmgrClient + tracker *Tracker + timerMap *TimerMap + rmrSendMutex sync.Mutex } type RMRMeid struct { - PlmnID string - EnbID string + PlmnID string + EnbID string RanName string } @@ -62,7 +62,7 @@ const ( ) func init() { - xapp.Logger.Info("SUBMGR /ric-plt-submgr:r3-test-v4") + xapp.Logger.Info("SUBMGR") viper.AutomaticEnv() viper.SetEnvPrefix("submgr") viper.AllowEmptyEnv(true) @@ -77,7 +77,7 @@ func init() { xapp.Logger.Info("SUBMGR: Initial Sequence Number: %v", seedSN) } -func NewControl() Control { +func NewControl() *Control { registry := new(Registry) registry.Initialize(seedSN) @@ -87,15 +87,18 @@ func NewControl() Control { timerMap := new(TimerMap) timerMap.Init() - rmrSendMutex := &sync.Mutex{} - transport := httptransport.New(viper.GetString("rtmgr.HostAddr")+":"+viper.GetString("rtmgr.port"), viper.GetString("rtmgr.baseUrl"), []string{"http"}) client := rtmgrclient.New(transport, strfmt.Default) handle := rtmgrhandle.NewProvideXappSubscriptionHandleParamsWithTimeout(10 * time.Second) deleteHandle := rtmgrhandle.NewDeleteXappSubscriptionHandleParamsWithTimeout(10 * time.Second) rtmgrClient := RtmgrClient{client, handle, deleteHandle} - return Control{new(E2ap), registry, &rtmgrClient, tracker, timerMap, rmrSendMutex} + return &Control{e2ap: new(E2ap), + registry: registry, + rtmgrClient: &rtmgrClient, + tracker: tracker, + timerMap: timerMap, + } } func (c *Control) Run() { @@ -105,12 +108,12 @@ func (c *Control) Run() { func (c *Control) rmrSend(params *xapp.RMRParams) (err error) { status := false i := 1 - for ; i <= 10 && status == false; i++ { + for ; i <= 10 && status == false; i++ { c.rmrSendMutex.Lock() status = xapp.Rmr.Send(params, false) c.rmrSendMutex.Unlock() if status == false { - xapp.Logger.Info("rmr.Send() failed. Retry count %v, Mtype: %v, SubId: %v, Xid %s",i, params.Mtype, params.SubId, params.Xid) + xapp.Logger.Info("rmr.Send() failed. Retry count %v, Mtype: %v, SubId: %v, Xid %s", i, params.Mtype, params.SubId, params.Xid) time.Sleep(500 * time.Millisecond) } } @@ -138,6 +141,8 @@ func (c *Control) Consume(msg *xapp.RMRParams) (err error) { go c.handleSubscriptionDeleteRequest(msg) case xapp.RICMessageTypes["RIC_SUB_DEL_RESP"]: go c.handleSubscriptionDeleteResponse(msg) + case xapp.RICMessageTypes["RIC_SUB_DEL_FAILURE"]: + go c.handleSubscriptionDeleteFailure(msg) default: xapp.Logger.Info("Unknown Message Type '%d', discarding", msg.Mtype) } @@ -145,203 +150,238 @@ func (c *Control) Consume(msg *xapp.RMRParams) (err error) { } func (c *Control) handleSubscriptionRequest(params *xapp.RMRParams) { - xapp.Logger.Info("Subscription Request Received from Src: %s, Mtype: %v, SubId: %v, Xid: %s, Meid: %v",params.Src, params.Mtype, params.SubId, params.Xid, params.Meid) + xapp.Logger.Info("SubReq received from Src: %s, Mtype: %v, SubId: %v, Xid: %s, Meid: %v", params.Src, params.Mtype, params.SubId, params.Xid, params.Meid) xapp.Rmr.Free(params.Mbuf) params.Mbuf = nil /* Reserve a sequence number and set it in the payload */ newSubId, isIdValid := c.registry.ReserveSequenceNumber() if isIdValid != true { - xapp.Logger.Error("Further processing of this SubscriptionRequest stopped. SubId: %v, Xid: %s",params.SubId, params.Xid) - return + xapp.Logger.Error("SubReq: Failed to reserve sequence number. Dropping this msg. SubId: %v, Xid: %s", params.SubId, params.Xid) + c.registry.releaseSequenceNumber(newSubId) + return } + params.SubId = int(newSubId) err := c.e2ap.SetSubscriptionRequestSequenceNumber(params.Payload, newSubId) if err != nil { - xapp.Logger.Error("Unable to set Subscription Sequence Number in Payload. Dropping this Subscription Request message. Err: v%, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubReq: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s, Payload %X", err, params.SubId, params.Xid, params.Payload) + c.registry.releaseSequenceNumber(newSubId) return } srcAddr, srcPort, err := c.rtmgrClient.SplitSource(params.Src) if err != nil { - xapp.Logger.Error("Failed to update routing-manager about the subscription request with reason: %s", err) + xapp.Logger.Error("SubReq: Failed to update routing-manager. Dropping this msg. Err: %s, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + c.registry.releaseSequenceNumber(newSubId) return } - /* Create transatcion records for every subscription request */ - xactKey := TransactionKey{newSubId, CREATE} - xactValue := Transaction{*srcAddr, *srcPort, params} - err = c.tracker.TrackTransaction(xactKey, xactValue) + // Create transatcion record for every subscription request + var forwardRespToXapp bool = true + var responseReceived bool = false + transaction, err := c.tracker.TrackTransaction(newSubId, CREATE, *srcAddr, *srcPort, params, responseReceived, forwardRespToXapp) if err != nil { - xapp.Logger.Error("Failed to create a Subscription Request transaction record. Err: %v", err) + xapp.Logger.Error("SubReq: Failed to create transaction record. Dropping this msg. Err: %v SubId: %v, Xid: %s", err, params.SubId, params.Xid) + c.registry.releaseSequenceNumber(newSubId) return } - /* Update routing manager about the new subscription*/ - subRouteAction := SubRouteInfo{CREATE, *srcAddr, *srcPort, newSubId} - xapp.Logger.Info("Starting routing manager update") + // Update routing manager about the new subscription + subRouteAction := transaction.SubRouteInfo() + xapp.Logger.Info("SubReq: Starting routing manager update. SubId: %v, Xid: %s", params.SubId, params.Xid) + err = c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) if err != nil { - xapp.Logger.Error("Failed to update routing manager. Dropping this Subscription Request message. Err: %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubReq: Failed to update routing manager. Dropping this msg. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + c.registry.releaseSequenceNumber(newSubId) return } // Setting new subscription ID in the RMR header - params.SubId = int(newSubId) - xapp.Logger.Info("Forwarding Subscription Request to E2T: Mtype: %v, SubId: %v, Xid %s, Meid %v",params.Mtype, params.SubId, params.Xid, params.Meid) + xapp.Logger.Info("SubReq: Forwarding SubReq to E2T: Mtype: %v, SubId: %v, Xid %s, Meid %v", params.Mtype, params.SubId, params.Xid, params.Meid) err = c.rmrSend(params) if err != nil { - xapp.Logger.Error("Failed to send request to E2T %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) - } /*else { - c.timerMap.StartTimer(newSubId, subReqTime, c.handleSubscriptionRequestTimer) - }*/ - xapp.Logger.Debug("--- Debugging transaction table = %v", c.tracker.transactionTable) + xapp.Logger.Error("SubReq: Failed to send request to E2T %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + } + c.timerMap.StartTimer("RIC_SUB_REQ", int(newSubId), subReqTime, FirstTry, c.handleSubscriptionRequestTimer) + xapp.Logger.Debug("SubReq: Debugging transaction table = %v", c.tracker.transactionTable) return } func (c *Control) handleSubscriptionResponse(params *xapp.RMRParams) { - xapp.Logger.Info("Subscription Response Received from Src: %s, Mtype: %v, SubId: %v, Meid: %v",params.Src, params.Mtype, params.SubId, params.Meid) + xapp.Logger.Info("SubResp received from Src: %s, Mtype: %v, SubId: %v, Meid: %v", params.Src, params.Mtype, params.SubId, params.Meid) xapp.Rmr.Free(params.Mbuf) params.Mbuf = nil payloadSeqNum, err := c.e2ap.GetSubscriptionResponseSequenceNumber(params.Payload) if err != nil { - xapp.Logger.Error("Unable to get Subscription Sequence Number from Payload. Dropping this Subscription Responsemessage. Err: v%, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubResp: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s, Payload %X", err, params.SubId, params.Xid, params.Payload) return } + xapp.Logger.Info("SubResp: Received payloadSeqNum: %v", payloadSeqNum) - xapp.Logger.Info("Received payloadSeqNum: %v",payloadSeqNum) if !c.registry.IsValidSequenceNumber(payloadSeqNum) { - xapp.Logger.Error("Unknown payloadSeqNum. Dropping this Subscription Response message. PayloadSeqNum: %v, SubId: %v, Xid: %s", payloadSeqNum, params.SubId, params.Xid) + xapp.Logger.Error("SubResp: Unknown payloadSeqNum. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId) return } -// c.timerMap.StopTimer(payloadSeqNum) + c.timerMap.StopTimer("RIC_SUB_REQ", int(payloadSeqNum)) - c.registry.setSubscriptionToConfirmed(payloadSeqNum) - var transaction Transaction - transaction, err = c.tracker.RetriveTransaction(payloadSeqNum, CREATE) + transaction, responseReceived, err := c.tracker.CheckResponseReceived(payloadSeqNum, CREATE) if err != nil { - xapp.Logger.Error("Failed to retrive transaction record. Dropping this Subscription Response message. Err: v%, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Info("SubResp: Dropping this msg. Err: %v SubId: %v", err, payloadSeqNum) + return + } + + if responseReceived == true { + // Subscription timer already received return } - xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Retrieved old subId...", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) + xapp.Logger.Info("SubResp: SubId: %v, from address: %v:%v.", payloadSeqNum, transaction.Xappkey.Addr, transaction.Xappkey.Port) - params.SubId = int(payloadSeqNum) - params.Xid = transaction.OrigParams.Xid - - xapp.Logger.Info("Forwarding Subscription Response to UEEC: Mtype: %v, SubId: %v, Xid: %s, Meid: %v",params.Mtype, params.SubId, params.Xid, params.Meid) + c.registry.setSubscriptionToConfirmed(payloadSeqNum) + + params.SubId = int(payloadSeqNum) + params.Xid = transaction.OrigParams.Xid + + xapp.Logger.Info("SubResp: Forwarding Subscription Response to xApp Mtype: %v, SubId: %v, Meid: %v", params.Mtype, params.SubId, params.Meid) err = c.rmrReplyToSender(params) if err != nil { - xapp.Logger.Error("Failed to send response to requestor %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubResp: Failed to send response to xApp. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) } - xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Deleting transaction record", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) - transaction, err = c.tracker.completeTransaction(payloadSeqNum, CREATE) + xapp.Logger.Info("SubResp: SubId: %v, from address: %v:%v. Deleting transaction record", payloadSeqNum, transaction.Xappkey.Addr, transaction.Xappkey.Port) + _, err = c.tracker.completeTransaction(payloadSeqNum, CREATE) if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Request transaction record due to %v", err) + xapp.Logger.Error("SubResp: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } return } func (c *Control) handleSubscriptionFailure(params *xapp.RMRParams) { - xapp.Logger.Info("Subscription Failure Received from Src: %s, Mtype: %v, SubId: %v, Meid: %v",params.Src, params.Mtype, params.SubId, params.Meid) + xapp.Logger.Info("SubFail received from Src: %s, Mtype: %v, SubId: %v, Meid: %v", params.Src, params.Mtype, params.SubId, params.Meid) xapp.Rmr.Free(params.Mbuf) params.Mbuf = nil payloadSeqNum, err := c.e2ap.GetSubscriptionFailureSequenceNumber(params.Payload) if err != nil { - xapp.Logger.Error("Unable to get Subscription Sequence Number from Payload. Dropping this Subscription Failure message. Err: v%, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubFail: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s, Payload %X", err, params.SubId, params.Xid, params.Payload) return } - xapp.Logger.Info("Received payloadSeqNum: %v", payloadSeqNum) + xapp.Logger.Info("SubFail: Received payloadSeqNum: %v", payloadSeqNum) -// c.timerMap.StopTimer(payloadSeqNum) + c.timerMap.StopTimer("RIC_SUB_REQ", int(payloadSeqNum)) - var transaction Transaction - transaction, err = c.tracker.RetriveTransaction(payloadSeqNum, CREATE) - if err != nil { - xapp.Logger.Error("Failed to retrive transaction record. Dropping this Subscription Failure message. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + transaction, responseReceived, err := c.tracker.CheckResponseReceived(payloadSeqNum, CREATE) + if err != nil { + xapp.Logger.Info("SubFail: Dropping this msg. Err: %v SubId: %v", err, payloadSeqNum) return } - xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Forwarding response to requestor...", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) - - params.SubId = int(payloadSeqNum) - params.Xid = transaction.OrigParams.Xid - xapp.Logger.Info("Forwarding Subscription Failure to UEEC: Mtype: %v, SubId: %v, Xid: %v, Meid: %v",params.Mtype, params.SubId, params.Xid, params.Meid) - err = c.rmrReplyToSender(params) - if err != nil { - xapp.Logger.Error("Failed to send response to requestor %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + if responseReceived == true { + // Subscription timer already received + return } + xapp.Logger.Info("SubFail: SubId: %v, from address: %v:%v. Forwarding response to xApp", payloadSeqNum, transaction.Xappkey.Addr, transaction.Xappkey.Port) time.Sleep(3 * time.Second) - xapp.Logger.Info("Starting routing manager update") - subRouteAction := SubRouteInfo{CREATE, transaction.XappInstanceAddress, transaction.XappPort, payloadSeqNum} + xapp.Logger.Info("SubFail: Starting routing manager update. SubId: %v, Xid: %s", params.SubId, params.Xid) + subRouteAction := transaction.SubRouteInfo() err = c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) if err != nil { - xapp.Logger.Error("Failed to update routing manager. Err: %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubFail: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) } - xapp.Logger.Info("Deleting trancaction record") + xapp.Logger.Info("SubFail: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid) if c.registry.releaseSequenceNumber(payloadSeqNum) { - transaction, err = c.tracker.completeTransaction(payloadSeqNum, CREATE) + _, err = c.tracker.completeTransaction(payloadSeqNum, CREATE) if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Request transaction record due to %v", err) + xapp.Logger.Error("SubFail: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } } else { - xapp.Logger.Error("Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid) + xapp.Logger.Error("SubFail: Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid) return } return } -func (c *Control) handleSubscriptionRequestTimer(subId uint16) { - xapp.Logger.Info("Subscription Request timer expired. SubId: %v",subId) -/* - transaction, err := c.tracker.completeTransaction(subId, CREATE) +func (c *Control) handleSubscriptionRequestTimer(strId string, nbrId int, tryCount uint64) { + subId := uint16(nbrId) + xapp.Logger.Info("handleSubTimer: SubReq timer expired. subId: %v, tryCount: %v", subId, tryCount) + + transaction, responseReceived, err := c.tracker.CheckResponseReceived(subId, CREATE) if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Request transaction record due to %v", err) + xapp.Logger.Info("handleSubTimer: Dropping this timer action. Err: %v SubId: %v", err, subId) + return + } + + if responseReceived == true { + // Subscription Response or Failure already received return } - xapp.Logger.Info("SubId: %v, Xid %v, Meid: %v",subId, transaction.OrigParams.Xid, transaction.OrigParams.Meid) + if tryCount < maxSubReqTryCount { + xapp.Logger.Info("handleSubTimer: Resending SubReq to E2T: Mtype: %v, SubId: %v, Xid %s, Meid %v", transaction.OrigParams.Mtype, transaction.OrigParams.SubId, transaction.OrigParams.Xid, transaction.OrigParams.Meid) + // Set possible to handle new response for the subId + err = c.tracker.RetryTransaction(subId, CREATE) + if err != nil { + xapp.Logger.Error("handleSubDelTimer: Failed to retry transaction record. Dropping timer action. Err %v, SubId: %v", err, transaction.OrigParams.SubId) + return + } + + err = c.rmrSend(transaction.OrigParams) + if err != nil { + xapp.Logger.Error("handleSubTimer: Failed to send request to E2T %v, SubId: %v, Xid: %s", err, transaction.OrigParams.SubId, transaction.OrigParams.Xid) + } + + tryCount++ + c.timerMap.StartTimer("RIC_SUB_REQ", int(subId), subReqTime, tryCount, c.handleSubscriptionRequestTimer) + return + } + + var subDelReqPayload []byte + subDelReqPayload, err = c.e2ap.PackSubscriptionDeleteRequest(transaction.OrigParams.Payload, subId) + if err != nil { + xapp.Logger.Error("handleSubTimer: Packing SubDelReq failed. Err: %v", err) + return + } + + // Cancel failed subscription var params xapp.RMRParams - params.Mtype = 12012 //xapp.RICMessageTypes["RIC_SUB_FAILURE"] + params.Mtype = 12020 // RIC SUBSCRIPTION DELETE params.SubId = int(subId) - params.Meid = transaction.OrigParams.Meid params.Xid = transaction.OrigParams.Xid - payload := []byte("40C9408098000003EA7E00050000010016EA6300020021EA6E00808180EA6F000400000000EA6F000400010040EA6F000400020080EA6F0004000300C0EA6F000400040100EA6F000400050140EA6F000400060180EA6F0004000701C0EA6F000400080200EA6F000400090240EA6F0004000A0280EA6F0004000B02C0EA6F0004000C0300EA6F0004000D0340EA6F0004000E0380EA6F0004000F03C0") - params.PayloadLen = len(payload) - params.Payload = payload + params.Meid = transaction.OrigParams.Meid + params.Src = transaction.OrigParams.Src + params.PayloadLen = len(subDelReqPayload) + params.Payload = subDelReqPayload + params.Mbuf = nil - xapp.Logger.Info("Forwarding Subscription Failure to UEEC: Mtype: %v, SubId: %v, Xid: %s, Meid: %v",params.Mtype, params.SubId, params.Xid, params.Meid) - err = c.rmrReplyToSender(¶ms) + // Delete CREATE transaction + _, err = c.tracker.completeTransaction(subId, CREATE) if err != nil { - xapp.Logger.Error("Failed to send response to requestor %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("handleSubTimer: Failed to delete create transaction record. Dropping this timer action. Err: %v, SubId: %v, Xid: %s", err, subId, params.Xid) + return } -*/ -/* - time.Sleep(3 * time.Second) - - xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Deleting transaction record", int(subId), transaction.XappInstanceAddress, transaction.XappPort) - xapp.Logger.Info("Starting routing manager update") - subRouteAction := SubRouteInfo{DELETE, transaction.XappInstanceAddress, transaction.XappPort, payloadSeqNum} - c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + // Create DELETE transaction + var forwardRespToXapp bool = false + _, err = c.trackDeleteTransaction(¶ms, subId, forwardRespToXapp) + if err != nil { + xapp.Logger.Error("handleSubTimer: Failed to create delete transaction record. Dropping this timer action. Err: %v, SubId: %v, Xid: %s", err, subId, params.Xid) + return + } - xapp.Logger.Info("Deleting trancaction record") - if c.registry.releaseSequenceNumber(payloadSeqNum) { - transaction, err = c.tracker.completeTransaction(payloadSeqNum, CREATE) - if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Request transaction record due to %v", err) - return - } + xapp.Logger.Info("handleSubTimer: Sending SubDelReq to E2T: Mtype: %v, SubId: %v, Meid: %v", params.Mtype, params.SubId, params.Meid) + c.rmrSend(¶ms) + if err != nil { + xapp.Logger.Error("handleSubTimer: Failed to send request to E2T %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) } -*/ + c.timerMap.StartTimer("RIC_SUB_DEL_REQ", int(subId), subDelReqTime, FirstTry, c.handleSubscriptionDeleteRequestTimer) return } @@ -369,200 +409,260 @@ func (act Action) valid() bool { } func (c *Control) handleSubscriptionDeleteRequest(params *xapp.RMRParams) { - xapp.Logger.Info("Subscription Delete Request Received from Src: %s, Mtype: %v, SubId: %v, Xid: %s, Meid: %v",params.Src, params.Mtype, params.SubId, params.Xid, params.Meid) + xapp.Logger.Info("SubDelReq received from Src: %s, Mtype: %v, SubId: %v, Xid: %s, Meid: %v", params.Src, params.Mtype, params.SubId, params.Xid, params.Meid) xapp.Rmr.Free(params.Mbuf) params.Mbuf = nil payloadSeqNum, err := c.e2ap.GetSubscriptionDeleteRequestSequenceNumber(params.Payload) if err != nil { - xapp.Logger.Error("Unable to get Subscription Sequence Number from Payload. Dropping this Subscription Delete Request message. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubDelReq: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s, Payload %X", err, params.SubId, params.Xid, params.Payload) return } - xapp.Logger.Info("Received payloadSeqNum: %v", payloadSeqNum) + xapp.Logger.Info("SubDelReq: Received payloadSeqNum: %v", payloadSeqNum) + if c.registry.IsValidSequenceNumber(payloadSeqNum) { c.registry.deleteSubscription(payloadSeqNum) - err = c.trackDeleteTransaction(params, payloadSeqNum) + var forwardRespToXapp bool = true + _, err = c.trackDeleteTransaction(params, payloadSeqNum, forwardRespToXapp) if err != nil { - xapp.Logger.Error("Failed to create transaction record. Dropping this Subscription Delete Request message. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubDelReq: Failed to create transaction record. Dropping this msg. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } } else { - xapp.Logger.Error("Not valid sequence number. Dropping this Subscription Delete Request message. SubId: %v, Xid: %s", params.SubId, params.Xid) + xapp.Logger.Error("SubDelReq: Not valid sequence number. Dropping this msg. SubId: %v, Xid: %s", params.SubId, params.Xid) return } - - xapp.Logger.Info("Forwarding Delete Subscription Request to E2T: Mtype: %v, SubId: %v, Xid: %s, Meid: %v",params.Mtype, params.SubId, params.Xid, params.Meid) + + xapp.Logger.Info("SubDelReq: Forwarding Request to E2T. Mtype: %v, SubId: %v, Xid: %s, Meid: %v", params.Mtype, params.SubId, params.Xid, params.Meid) c.rmrSend(params) if err != nil { - xapp.Logger.Error("Failed to send request to E2T %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) - } /*else { - c.timerMap.StartTimer(payloadSeqNum, SubDelReqTime, c.handleSubscriptionDeleteRequestTimer) - }*/ + xapp.Logger.Error("SubDelReq: Failed to send request to E2T. Err %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + } + c.timerMap.StartTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum), subDelReqTime, FirstTry, c.handleSubscriptionDeleteRequestTimer) return } -func (c *Control) trackDeleteTransaction(params *xapp.RMRParams, payloadSeqNum uint16) (err error) { +func (c *Control) trackDeleteTransaction(params *xapp.RMRParams, payloadSeqNum uint16, forwardRespToXapp bool) (transaction *Transaction, err error) { srcAddr, srcPort, err := c.rtmgrClient.SplitSource(params.Src) if err != nil { - xapp.Logger.Error("Failed to update routing-manager about the subscription delete request with reason: %s", err) + xapp.Logger.Error("Failed to split source address. Err: %s, SubId: %v, Xid: %s", err, payloadSeqNum, params.Xid) } - xactKey := TransactionKey{payloadSeqNum, DELETE} - xactValue := Transaction{*srcAddr, *srcPort, params} - err = c.tracker.TrackTransaction(xactKey, xactValue) + var respReceived bool = false + transaction, err = c.tracker.TrackTransaction(payloadSeqNum, DELETE, *srcAddr, *srcPort, params, respReceived, forwardRespToXapp) return } func (c *Control) handleSubscriptionDeleteResponse(params *xapp.RMRParams) (err error) { - xapp.Logger.Info("Subscription Delete Response Received from Src: %s, Mtype: %v, SubId: %v, Meid: %v",params.Src, params.Mtype, params.SubId, params.Meid) + xapp.Logger.Info("SubDelResp received from Src: %s, Mtype: %v, SubId: %v, Meid: %v", params.Src, params.Mtype, params.SubId, params.Meid) xapp.Rmr.Free(params.Mbuf) params.Mbuf = nil payloadSeqNum, err := c.e2ap.GetSubscriptionDeleteResponseSequenceNumber(params.Payload) if err != nil { - xapp.Logger.Error("Unable to get Subscription Sequence Number from Payload. Dropping this Subscription Delete Response message. Err: %, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubDelResp: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s, Payload %X", err, params.SubId, params.Xid, params.Payload) return } - xapp.Logger.Info("Received payloadSeqNum: %v", payloadSeqNum) + xapp.Logger.Info("SubDelResp: Received payloadSeqNum: %v", payloadSeqNum) + + c.timerMap.StopTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum)) -// c.timerMap.StopTimer(payloadSeqNum) - - var transaction Transaction - transaction, err = c.tracker.RetriveTransaction(payloadSeqNum, DELETE) - if err != nil { - xapp.Logger.Error("Failed to retrive transaction record. Dropping this Subscription Delete Response message. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + transaction, responseReceived, err := c.tracker.CheckResponseReceived(payloadSeqNum, DELETE) + if err != nil { + xapp.Logger.Info("SubDelResp: Dropping this msg. Err: %v SubId: %v", err, payloadSeqNum) return } - xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Forwarding response to requestor...", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) - params.SubId = int(payloadSeqNum) - params.Xid = transaction.OrigParams.Xid - xapp.Logger.Info("Forwarding Subscription Delete Response to UEEC: Mtype: %v, SubId: %v, Xid: %v, Meid: %v",params.Mtype, params.SubId, params.Xid, params.Meid) - err = c.rmrReplyToSender(params) - if err != nil { - xapp.Logger.Error("Failed to send response to requestor %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) -// return + if responseReceived == true { + // Subscription Delete timer already received + return } + xapp.Logger.Info("SubDelResp: SubId: %v, from address: %v:%v. Forwarding response to xApp", payloadSeqNum, transaction.Xappkey.Addr, transaction.Xappkey.Port) - time.Sleep(3 * time.Second) + if transaction.ForwardRespToXapp == true { + params.SubId = int(payloadSeqNum) + params.Xid = transaction.OrigParams.Xid + xapp.Logger.Info("Forwarding SubDelResp to xApp: Mtype: %v, SubId: %v, Xid: %v, Meid: %v", params.Mtype, params.SubId, params.Xid, params.Meid) + err = c.rmrReplyToSender(params) + if err != nil { + xapp.Logger.Error("SubDelResp: Failed to send response to xApp. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + } + + time.Sleep(3 * time.Second) + } - xapp.Logger.Info("Starting routing manager update") - subRouteAction := SubRouteInfo{DELETE, transaction.XappInstanceAddress, transaction.XappPort, payloadSeqNum} + xapp.Logger.Info("SubDelResp: Starting routing manager update. SubId: %v, Xid: %s", params.SubId, params.Xid) + subRouteAction := SubRouteInfo{DELETE, transaction.Xappkey.Addr, transaction.Xappkey.Port, payloadSeqNum} err = c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) if err != nil { - xapp.Logger.Error("Failed to update routing manager %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubDelResp: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } - xapp.Logger.Info("Deleting trancaction record") + xapp.Logger.Info("SubDelResp: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid) if c.registry.releaseSequenceNumber(payloadSeqNum) { - transaction, err = c.tracker.completeTransaction(payloadSeqNum, DELETE) + _, err = c.tracker.completeTransaction(payloadSeqNum, DELETE) if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Delete Request transaction record due to %v", err) + xapp.Logger.Error("SubDelResp: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } } else { - xapp.Logger.Error("Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid) + xapp.Logger.Error("SubDelResp: Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid) return } return } func (c *Control) handleSubscriptionDeleteFailure(params *xapp.RMRParams) { - xapp.Logger.Info("Subscription Delete Failure Received from Src: %s, Mtype: %v, SubId: %v, Meid: %v",params.Src, params.Mtype, params.SubId, params.Meid) + xapp.Logger.Info("SubDelFail received from Src: %s, Mtype: %v, SubId: %v, Meid: %v", params.Src, params.Mtype, params.SubId, params.Meid) xapp.Rmr.Free(params.Mbuf) params.Mbuf = nil payloadSeqNum, err := c.e2ap.GetSubscriptionDeleteFailureSequenceNumber(params.Payload) if err != nil { - xapp.Logger.Error("Unable to get Subscription Sequence Number from Payload. Dropping this Subscription Delete Failure message. Err: %, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubDelFail: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s, Payload %X", err, params.SubId, params.Xid, params.Payload) return } - xapp.Logger.Info("Received payloadSeqNum: %v", payloadSeqNum) + xapp.Logger.Info("SubDelFail: Received payloadSeqNum: %v", payloadSeqNum) -// c.timerMap.StopTimer(payloadSeqNum) + c.timerMap.StopTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum)) - var transaction Transaction - transaction, err = c.tracker.RetriveTransaction(payloadSeqNum, DELETE) - if err != nil { - xapp.Logger.Error("Failed to retrive transaction record. Dropping this Subscription Delete Failure message. Err %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + transaction, responseReceived, err := c.tracker.CheckResponseReceived(payloadSeqNum, DELETE) + if err != nil { + xapp.Logger.Info("SubDelFail: Dropping this msg. Err: %v SubId: %v", err, payloadSeqNum) return } - xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Forwarding response to requestor...", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) - params.SubId = int(payloadSeqNum) - params.Xid = transaction.OrigParams.Xid - xapp.Logger.Info("Forwarding Subscription Delete Failure to UEEC: Mtype: %v, SubId: %v, Xid: %v, Meid: %v",params.Mtype, params.SubId, params.Xid, params.Meid) - err = c.rmrReplyToSender(params) - if err != nil { - xapp.Logger.Error("Failed to send response to requestor %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) -// return + if responseReceived == true { + // Subscription Delete timer already received + return } + xapp.Logger.Info("SubDelFail: SubId: %v, from address: %v:%v. Forwarding response to xApp", payloadSeqNum, transaction.Xappkey.Addr, transaction.Xappkey.Port) - time.Sleep(3 * time.Second) + if transaction.ForwardRespToXapp == true { + var subDelRespPayload []byte + subDelRespPayload, err = c.e2ap.PackSubscriptionDeleteResponse(transaction.OrigParams.Payload, payloadSeqNum) + if err != nil { + xapp.Logger.Error("SubDelFail:Packing SubDelResp failed. Err: %v", err) + return + } - xapp.Logger.Info("Starting routing manager update") - subRouteAction := SubRouteInfo{DELETE, transaction.XappInstanceAddress, transaction.XappPort, payloadSeqNum} - c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + params.Mtype = 12021 // RIC SUBSCRIPTION DELETE RESPONSE + params.SubId = int(payloadSeqNum) + params.Xid = transaction.OrigParams.Xid + params.Meid = transaction.OrigParams.Meid + params.Src = transaction.OrigParams.Src + params.PayloadLen = len(subDelRespPayload) + params.Payload = subDelRespPayload + params.Mbuf = nil + xapp.Logger.Info("SubDelFail: Forwarding SubDelFail to xApp: Mtype: %v, SubId: %v, Xid: %v, Meid: %v", params.Mtype, params.SubId, params.Xid, params.Meid) + err = c.rmrReplyToSender(params) + if err != nil { + xapp.Logger.Error("SubDelFail: Failed to send SubDelFail to xApp. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + } + + time.Sleep(3 * time.Second) + } + + xapp.Logger.Info("SubDelFail: Starting routing manager update. SubId: %v, Xid: %s", params.SubId, params.Xid) + subRouteAction := SubRouteInfo{DELETE, transaction.Xappkey.Addr, transaction.Xappkey.Port, payloadSeqNum} + err = c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) if err != nil { - xapp.Logger.Error("Failed to update routing manager %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubDelFail: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } - xapp.Logger.Info("Deleting trancaction record") + xapp.Logger.Info("SubDelFail: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid) if c.registry.releaseSequenceNumber(payloadSeqNum) { - transaction, err = c.tracker.completeTransaction(payloadSeqNum, DELETE) + _, err = c.tracker.completeTransaction(payloadSeqNum, DELETE) if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Delete Request transaction record due to %v", err) + xapp.Logger.Error("SubDelFail: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } } else { - xapp.Logger.Error("Failed to release sequency number. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + xapp.Logger.Error("SubDelFail: Failed to release sequency number. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) return } return } -func (c *Control) handleSubscriptionDeleteRequestTimer(subId uint16) { - xapp.Logger.Info("Subscription Delete Request timer expired. SubId: %v",subId) -/* - transaction, err := c.tracker.completeTransaction(subId, DELETE) +func (c *Control) handleSubscriptionDeleteRequestTimer(strId string, nbrId int, tryCount uint64) { + subId := uint16(nbrId) + xapp.Logger.Info("handleSubDelTimer: SubDelReq timer expired. subId: %v, tryCount: %v", subId, tryCount) + + transaction, responseReceived, err := c.tracker.CheckResponseReceived(subId, DELETE) if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Delete Request transaction record due to %v", err) + xapp.Logger.Info("handleSubTimer: Dropping this timer action. Err: %v SubId: %v", err, subId) + return + } + + if responseReceived == true { + // Subscription Delete Response or Failure already received + return + } + + if tryCount < maxSubDelReqTryCount { + xapp.Logger.Info("handleSubDelTimer: Resending SubDelReq to E2T: Mtype: %v, SubId: %v, Xid %s, Meid %v", transaction.OrigParams.Mtype, transaction.OrigParams.SubId, transaction.OrigParams.Xid, transaction.OrigParams.Meid) + // Set possible to handle new response for the subId + err = c.tracker.RetryTransaction(subId, DELETE) + if err != nil { + xapp.Logger.Error("handleSubDelTimer: Failed to retry transaction record. Dropping timer action. Err %v, SubId: %v", err, transaction.OrigParams.SubId) + return + } + + err = c.rmrSend(transaction.OrigParams) + if err != nil { + xapp.Logger.Error("handleSubDelTimer: Failed to send request to E2T %v, SubId: %v, Xid: %s", err, transaction.OrigParams.SubId, transaction.OrigParams.Xid) + } + + tryCount++ + c.timerMap.StartTimer("RIC_SUB_DEL_REQ", int(subId), subReqTime, tryCount, c.handleSubscriptionDeleteRequestTimer) return } - xapp.Logger.Info("SubId: %v, Xid %v, Meid: %v",subId, transaction.OrigParams.Xid, transaction.OrigParams.Meid) var params xapp.RMRParams - params.Mtype = 12022 //xapp.RICMessageTypes["RIC_SUB_DEL_FAILURE"] - params.SubId = int(subId) - params.Meid = transaction.OrigParams.Meid - params.Xid = transaction.OrigParams.Xid - payload := []byte("40CA4018000003EA7E00050000010016EA6300020021EA74000200C0") - params.PayloadLen = len(payload) - params.Payload = payload + if transaction.ForwardRespToXapp == true { + var subDelRespPayload []byte + subDelRespPayload, err = c.e2ap.PackSubscriptionDeleteResponse(transaction.OrigParams.Payload, subId) + if err != nil { + xapp.Logger.Error("handleSubDelTimer: Unable to pack payload. Dropping this timer action. Err: %v, SubId: %v, Xid: %s, Payload %x", err, subId, transaction.OrigParams.Xid, transaction.OrigParams.Payload) + return + } - xapp.Logger.Info("Forwarding Subscription Delete Failure to UEEC: Mtype: %v, SubId: %v, Xid: %s, Meid: %v",params.Mtype, params.SubId, params.Xid, params.Meid) - err = c.rmrReplyToSender(¶ms) - if err != nil { - xapp.Logger.Error("Failed to send response to requestor %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) + params.Mtype = 12021 // RIC SUBSCRIPTION DELETE RESPONSE + params.SubId = int(subId) + params.Meid = transaction.OrigParams.Meid + params.Xid = transaction.OrigParams.Xid + params.Src = transaction.OrigParams.Src + params.PayloadLen = len(subDelRespPayload) + params.Payload = subDelRespPayload + params.Mbuf = nil + + xapp.Logger.Info("handleSubDelTimer: Sending SubDelResp to xApp: Mtype: %v, SubId: %v, Xid: %s, Meid: %v", params.Mtype, params.SubId, params.Xid, params.Meid) + err = c.rmrReplyToSender(¶ms) + if err != nil { + xapp.Logger.Error("handleSubDelTimer: Failed to send response to xApp: Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) + } + + time.Sleep(3 * time.Second) } -*/ -/* - time.Sleep(3 * time.Second) - xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Deleting transaction record", int(subId), transaction.XappInstanceAddress, transaction.XappPort) - xapp.Logger.Info("Starting routing manager update") - subRouteAction := SubRouteInfo{DELETE, transaction.XappInstanceAddress, transaction.XappPort, payloadSeqNum} - c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + xapp.Logger.Info("handleSubDelTimer: Starting routing manager update. SubId: %v, Xid: %s", subId, params.Xid) + subRouteAction := SubRouteInfo{DELETE, transaction.Xappkey.Addr, transaction.Xappkey.Port, subId} + err = c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + if err != nil { + xapp.Logger.Error("handleSubDelTimer: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, subId, params.Xid) + return + } - xapp.Logger.Info("Deleting trancaction record") - if c.registry.releaseSequenceNumber(payloadSeqNum) { - transaction, err = c.tracker.completeTransaction(payloadSeqNum, DELETE) + xapp.Logger.Info("handleSubDelTimer: Deleting transaction record. SubId: %v, Xid: %s", subId, params.Xid) + if c.registry.releaseSequenceNumber(subId) { + _, err = c.tracker.completeTransaction(subId, DELETE) if err != nil { - xapp.Logger.Error("Failed to delete a Subscription Delete Request transaction record due to %v", err) + xapp.Logger.Error("handleSubDelTimer: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, subId, params.Xid) return } + } else { + xapp.Logger.Error("handleSubDelTimer: Failed to release sequency number. SubId: %v, Xid: %s", subId, params.Xid) } -*/ return - } +}