package control
import (
- "errors"
+ "fmt"
+ "gerrit.o-ran-sc.org/r/ric-plt/e2ap/pkg/e2ap"
rtmgrclient "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/rtmgr_client"
- rtmgrhandle "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/rtmgr_client/handle"
"gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
httptransport "github.com/go-openapi/runtime/client"
"github.com/go-openapi/strfmt"
"github.com/spf13/viper"
- "math/rand"
"sync"
"time"
)
-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
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
+
+var e2tSubReqTimeout time.Duration = 5 * time.Second
+var e2tSubDelReqTime time.Duration = 5 * time.Second
+var e2tMaxSubReqTryCount uint64 = 2 // Initial try + retry
+var e2tMaxSubDelReqTryCount uint64 = 2 // Initial try + retry
+
+var e2tRecvMsgTimeout time.Duration = 5 * time.Second
type Control struct {
e2ap *E2ap
registry *Registry
- rtmgrClient *RtmgrClient
tracker *Tracker
timerMap *TimerMap
rmrSendMutex sync.Mutex
RanName string
}
-var seedSN uint16
-
const (
CREATE Action = 0
- MERGE Action = 1
+ UPDATE Action = 1
NONE Action = 2
DELETE Action = 3
)
viper.AutomaticEnv()
viper.SetEnvPrefix("submgr")
viper.AllowEmptyEnv(true)
- seedSN = uint16(viper.GetInt("seed_sn"))
- if seedSN == 0 {
- rand.Seed(time.Now().UnixNano())
- seedSN = uint16(rand.Intn(65535))
- }
- if seedSN > 65535 {
- seedSN = 0
- }
- xapp.Logger.Info("SUBMGR: Initial Sequence Number: %v", seedSN)
}
func NewControl() *Control {
+ transport := httptransport.New(viper.GetString("rtmgr.HostAddr")+":"+viper.GetString("rtmgr.port"), viper.GetString("rtmgr.baseUrl"), []string{"http"})
+ rtmgrClient := RtmgrClient{rtClient: rtmgrclient.New(transport, strfmt.Default)}
+
registry := new(Registry)
- registry.Initialize(seedSN)
+ registry.Initialize()
+ registry.rtmgrClient = &rtmgrClient
tracker := new(Tracker)
tracker.Init()
timerMap := new(TimerMap)
timerMap.Init()
- 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}
-
- rtmgrClientPtr := &rtmgrClient
-
- //TODO: to make this better. Now it is just a hack.
- registry.rtmgrClient = rtmgrClientPtr
-
return &Control{e2ap: new(E2ap),
- registry: registry,
- rtmgrClient: rtmgrClientPtr,
- tracker: tracker,
- timerMap: timerMap,
- msgCounter: 0,
+ registry: registry,
+ tracker: tracker,
+ timerMap: timerMap,
+ msgCounter: 0,
}
}
xapp.Run(c)
}
-func (c *Control) rmrSend(params *xapp.RMRParams) (err error) {
+func (c *Control) rmrSendRaw(desc string, params *RMRParams) (err error) {
+
+ xapp.Logger.Info("%s: %s", desc, params.String())
status := false
i := 1
for ; i <= 10 && status == false; i++ {
c.rmrSendMutex.Lock()
- status = xapp.Rmr.Send(params, false)
+ status = xapp.Rmr.Send(params.RMRParams, 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 %d, %s", i, params.String())
time.Sleep(500 * time.Millisecond)
}
}
if status == false {
- err = errors.New("rmr.Send() failed")
+ err = fmt.Errorf("rmr.Send() failed. Retry count %d, %s", i, params.String())
+ xapp.Logger.Error("%s: %s", desc, err.Error())
xapp.Rmr.Free(params.Mbuf)
}
return
}
-func (c *Control) rmrReplyToSender(params *xapp.RMRParams) (err error) {
- c.rmrSend(params)
- return
+func (c *Control) rmrSend(desc string, subs *Subscription, trans *Transaction) (err error) {
+ params := &RMRParams{&xapp.RMRParams{}}
+ params.Mtype = trans.GetMtype()
+ params.SubId = int(subs.GetSubId())
+ params.Xid = ""
+ params.Meid = subs.GetMeid()
+ params.Src = ""
+ params.PayloadLen = len(trans.Payload.Buf)
+ params.Payload = trans.Payload.Buf
+ params.Mbuf = nil
+
+ return c.rmrSendRaw(desc, params)
+}
+
+func (c *Control) rmrReplyToSender(desc string, subs *Subscription, trans *Transaction) (err error) {
+ params := &RMRParams{&xapp.RMRParams{}}
+ params.Mtype = trans.GetMtype()
+ params.SubId = int(subs.GetSubId())
+ params.Xid = trans.GetXid()
+ params.Meid = trans.GetMeid()
+ params.Src = ""
+ params.PayloadLen = len(trans.Payload.Buf)
+ params.Payload = trans.Payload.Buf
+ params.Mbuf = nil
+
+ return c.rmrSendRaw(desc, params)
}
-func (c *Control) Consume(msg *xapp.RMRParams) (err error) {
+func (c *Control) Consume(params *xapp.RMRParams) (err error) {
+ xapp.Rmr.Free(params.Mbuf)
+ params.Mbuf = nil
+ msg := &RMRParams{params}
c.msgCounter++
switch msg.Mtype {
case xapp.RICMessageTypes["RIC_SUB_REQ"]:
- go c.handleSubscriptionRequest(msg)
+ go c.handleXAPPSubscriptionRequest(msg)
case xapp.RICMessageTypes["RIC_SUB_RESP"]:
- go c.handleSubscriptionResponse(msg)
+ go c.handleE2TSubscriptionResponse(msg)
case xapp.RICMessageTypes["RIC_SUB_FAILURE"]:
- go c.handleSubscriptionFailure(msg)
+ go c.handleE2TSubscriptionFailure(msg)
case xapp.RICMessageTypes["RIC_SUB_DEL_REQ"]:
- go c.handleSubscriptionDeleteRequest(msg)
+ go c.handleXAPPSubscriptionDeleteRequest(msg)
case xapp.RICMessageTypes["RIC_SUB_DEL_RESP"]:
- go c.handleSubscriptionDeleteResponse(msg)
+ go c.handleE2TSubscriptionDeleteResponse(msg)
case xapp.RICMessageTypes["RIC_SUB_DEL_FAILURE"]:
- go c.handleSubscriptionDeleteFailure(msg)
+ go c.handleE2TSubscriptionDeleteFailure(msg)
default:
xapp.Logger.Info("Unknown Message Type '%d', discarding", msg.Mtype)
}
+
return nil
}
-
-func (c *Control) handleSubscriptionRequest(params *xapp.RMRParams) {
- 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
-
- srcAddr, srcPort, err := c.rtmgrClient.SplitSource(params.Src)
- if err != nil {
- xapp.Logger.Error("SubReq: Failed to update routing-manager. Dropping this msg. Err: %s, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
- return
- }
-
- subs, err := c.registry.ReserveSubscription(RmrEndpoint{*srcAddr, *srcPort}, params.Meid)
- if err != nil {
- xapp.Logger.Error("SubReq: %s, Dropping this msg.", err.Error())
- return
+func idstring(trans fmt.Stringer, subs fmt.Stringer, err error) string {
+ var retval string = ""
+ var filler string = ""
+ if trans != nil {
+ retval += filler + trans.String()
+ filler = " "
}
-
- params.SubId = int(subs.Seq)
- err = c.e2ap.SetSubscriptionRequestSequenceNumber(params.Payload, subs.Seq)
- if err != nil {
- 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.DelSubscription(subs.Seq)
- return
+ if subs != nil {
+ retval += filler + subs.String()
+ filler = " "
}
-
- // Create transatcion record for every subscription request
- var forwardRespToXapp bool = true
- var responseReceived bool = false
- _, err = c.tracker.TrackTransaction(subs, RmrEndpoint{*srcAddr, *srcPort}, params, responseReceived, forwardRespToXapp)
if err != nil {
- xapp.Logger.Error("SubReq: %s, Dropping this msg.", err.Error())
- c.registry.DelSubscription(subs.Seq)
- return
- }
+ retval += filler + "err(" + err.Error() + ")"
+ filler = " "
- // Setting new subscription ID in the RMR header
- 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("SubReq: Failed to send request to E2T %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
}
- c.timerMap.StartTimer("RIC_SUB_REQ", int(subs.Seq), subReqTime, FirstTry, c.handleSubscriptionRequestTimer)
- xapp.Logger.Debug("SubReq: Debugging transaction table = %v", c.tracker.transactionXappTable)
- return
+ return retval
}
-func (c *Control) handleSubscriptionResponse(params *xapp.RMRParams) {
- 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
+//-------------------------------------------------------------------
+// handle from XAPP Subscription Request
+//------------------------------------------------------------------
+func (c *Control) handleXAPPSubscriptionRequest(params *RMRParams) {
+ xapp.Logger.Info("XAPP-SubReq from xapp: %s", params.String())
- payloadSeqNum, err := c.e2ap.GetSubscriptionResponseSequenceNumber(params.Payload)
+ subReqMsg, err := c.e2ap.UnpackSubscriptionRequest(params.Payload)
if err != nil {
- 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)
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(params, nil, err))
return
}
- xapp.Logger.Info("SubResp: Received payloadSeqNum: %v", payloadSeqNum)
- subs := c.registry.GetSubscription(payloadSeqNum)
- if subs == nil {
- xapp.Logger.Error("SubResp: Unknown payloadSeqNum. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
+ trans, err := c.tracker.TrackTransaction(NewRmrEndpoint(params.Src), params.Xid, params.Meid)
+ if err != nil {
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(params, nil, err))
return
}
+ defer trans.Release()
- transaction := subs.GetTransaction()
-
- c.timerMap.StopTimer("RIC_SUB_REQ", int(payloadSeqNum))
-
- responseReceived := transaction.CheckResponseReceived()
- if responseReceived == true {
- // Subscription timer already received
+ subs, err := c.registry.AssignToSubscription(trans, subReqMsg)
+ if err != nil {
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(trans, nil, err))
return
}
- xapp.Logger.Info("SubResp: SubId: %v, from address: %s.", payloadSeqNum, transaction.RmrEndpoint)
- subs.Confirmed()
- transaction.Release()
+ if subs.IsTransactionReserved() {
+ err := fmt.Errorf("Currently parallel or queued transactions are not allowed")
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(trans, subs, err))
+ return
+ }
- params.SubId = int(payloadSeqNum)
- params.Xid = transaction.OrigParams.Xid
+ //
+ // Wake subs request
+ //
+ go c.handleSubscriptionCreate(subs, trans)
+ event, _ := trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
- 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("SubResp: Failed to send response to xApp. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ err = nil
+ if event != nil {
+ switch themsg := event.(type) {
+ case *e2ap.E2APSubscriptionResponse:
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionResponse(themsg)
+ if err == nil {
+ c.rmrReplyToSender("XAPP-SubReq: SubResp to xapp", subs, trans)
+ return
+ }
+ case *e2ap.E2APSubscriptionFailure:
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionFailure(themsg)
+ if err == nil {
+ c.rmrReplyToSender("XAPP-SubReq: SubFail to xapp", subs, trans)
+ }
+ return
+ default:
+ break
+ }
}
-
- xapp.Logger.Info("SubResp: SubId: %v, from address: %s. Deleting transaction record", payloadSeqNum, transaction.RmrEndpoint)
- return
+ xapp.Logger.Info("XAPP-SubReq: failed %s", idstring(trans, subs, err))
}
-func (c *Control) handleSubscriptionFailure(params *xapp.RMRParams) {
- 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
+//-------------------------------------------------------------------
+// handle from XAPP Subscription Delete Request
+//------------------------------------------------------------------
+func (c *Control) handleXAPPSubscriptionDeleteRequest(params *RMRParams) {
+ xapp.Logger.Info("XAPP-SubDelReq from xapp: %s", params.String())
- payloadSeqNum, err := c.e2ap.GetSubscriptionFailureSequenceNumber(params.Payload)
+ subDelReqMsg, err := c.e2ap.UnpackSubscriptionDeleteRequest(params.Payload)
if err != nil {
- 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)
+ xapp.Logger.Error("XAPP-SubDelReq %s", idstring(params, nil, err))
return
}
- xapp.Logger.Info("SubFail: Received payloadSeqNum: %v", payloadSeqNum)
- subs := c.registry.GetSubscription(payloadSeqNum)
- if subs == nil {
- xapp.Logger.Error("SubFail: Unknown payloadSeqNum. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
- return
- }
-
- transaction := subs.GetTransaction()
- if transaction == nil {
- xapp.Logger.Error("SubFail: Unknown transaction. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
+ trans, err := c.tracker.TrackTransaction(NewRmrEndpoint(params.Src), params.Xid, params.Meid)
+ if err != nil {
+ xapp.Logger.Error("XAPP-SubDelReq %s", idstring(params, nil, err))
return
}
+ defer trans.Release()
- c.timerMap.StopTimer("RIC_SUB_REQ", int(payloadSeqNum))
-
- responseReceived := transaction.CheckResponseReceived()
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint16{uint16(subDelReqMsg.RequestId.Seq), uint16(params.SubId)})
if err != nil {
- xapp.Logger.Info("SubFail: Dropping this msg. Err: %v SubId: %v", err, payloadSeqNum)
+ xapp.Logger.Error("XAPP-SubDelReq: %s", idstring(trans, nil, err))
return
}
- if responseReceived == true {
- // Subscription timer already received
+ if subs.IsTransactionReserved() {
+ err := fmt.Errorf("Currently parallel or queued transactions are not allowed")
+ xapp.Logger.Error("XAPP-SubDelReq: %s", idstring(trans, subs, err))
return
}
- xapp.Logger.Info("SubFail: SubId: %v, from address: %s. Forwarding response to xApp", payloadSeqNum, transaction.RmrEndpoint)
- time.Sleep(3 * time.Second)
+ //
+ // Wake subs delete
+ //
+ go c.handleSubscriptionDelete(subs, trans)
+ trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
- xapp.Logger.Info("SubFail: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid)
- transaction.Release()
- if !c.registry.DelSubscription(payloadSeqNum) {
- xapp.Logger.Error("SubFail: Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid)
+ // Whatever is received send ok delete response
+ subDelRespMsg := &e2ap.E2APSubscriptionDeleteResponse{}
+ subDelRespMsg.RequestId.Id = subs.SubReqMsg.RequestId.Id
+ subDelRespMsg.RequestId.Seq = uint32(subs.GetSubId())
+ subDelRespMsg.FunctionId = subs.SubReqMsg.FunctionId
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionDeleteResponse(subDelRespMsg)
+ if err == nil {
+ c.rmrReplyToSender("XAPP-SubDelReq: SubDelResp to xapp", subs, trans)
}
- return
}
-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)
+//-------------------------------------------------------------------
+// SUBS CREATE Handling
+//-------------------------------------------------------------------
+func (c *Control) handleSubscriptionCreate(subs *Subscription, parentTrans *Transaction) {
- subs := c.registry.GetSubscription(subId)
- if subs == nil {
- xapp.Logger.Error("SubFail: Unknown payloadSeqNum. Dropping this msg. SubId: %v", subId)
- return
- }
+ trans := c.tracker.NewTransaction(subs.GetMeid())
+ subs.WaitTransactionTurn(trans)
+ defer subs.ReleaseTransactionTurn(trans)
+ defer trans.Release()
- transaction := subs.GetTransaction()
- if transaction == nil {
- xapp.Logger.Error("SubFail: Unknown transaction. Dropping this msg. SubId: %v", subId)
+ xapp.Logger.Debug("SUBS-SubReq: Handling %s parent %s", idstring(trans, subs, nil), parentTrans.String())
+
+ if subs.SubRespMsg != nil {
+ xapp.Logger.Debug("SUBS-SubReq: Handling (immediate response) %s parent %s", idstring(nil, subs, nil), parentTrans.String())
+ parentTrans.SendEvent(subs.SubRespMsg, 0)
return
}
- responseReceived := transaction.CheckResponseReceived()
-
- if responseReceived == true {
- // Subscription Response or Failure already received
+ event := c.sendE2TSubscriptionRequest(subs, trans, parentTrans)
+ switch themsg := event.(type) {
+ case *e2ap.E2APSubscriptionResponse:
+ subs.SubRespMsg = themsg
+ parentTrans.SendEvent(event, 0)
return
+ case *e2ap.E2APSubscriptionFailure:
+ //TODO: Possible delete and one retry for subs req
+ parentTrans.SendEvent(event, 0)
+ default:
+ xapp.Logger.Info("SUBS-SubReq: internal delete due event(%s) %s", typeofSubsMessage(event), idstring(trans, subs, nil))
+ c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans)
+ parentTrans.SendEvent(nil, 0)
}
- 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)
+ go c.registry.RemoveFromSubscription(subs, parentTrans, 5*time.Second)
+}
- transaction.RetryTransaction()
+//-------------------------------------------------------------------
+// SUBS DELETE Handling
+//-------------------------------------------------------------------
+func (c *Control) handleSubscriptionDelete(subs *Subscription, parentTrans *Transaction) {
- 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
- }
+ trans := c.tracker.NewTransaction(subs.GetMeid())
+ subs.WaitTransactionTurn(trans)
+ defer subs.ReleaseTransactionTurn(trans)
+ defer trans.Release()
- 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
- }
+ xapp.Logger.Debug("SUBS-SubDelReq: Handling %s parent %s", idstring(trans, subs, nil), parentTrans.String())
- // Cancel failed subscription
- var params xapp.RMRParams
- params.Mtype = 12020 // RIC SUBSCRIPTION DELETE
- params.SubId = int(subId)
- params.Xid = transaction.OrigParams.Xid
- params.Meid = transaction.OrigParams.Meid
- params.Src = transaction.OrigParams.Src
- params.PayloadLen = len(subDelReqPayload)
- params.Payload = subDelReqPayload
- params.Mbuf = nil
+ event := c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans)
- // Delete CREATE transaction
- transaction.Release()
+ parentTrans.SendEvent(event, 0)
+ go c.registry.RemoveFromSubscription(subs, parentTrans, 5*time.Second)
+}
- // Create DELETE transaction
- _, err = c.trackDeleteTransaction(subs, ¶ms, subId, false)
+//-------------------------------------------------------------------
+// send to E2T Subscription Request
+//-------------------------------------------------------------------
+func (c *Control) sendE2TSubscriptionRequest(subs *Subscription, trans *Transaction, parentTrans *Transaction) interface{} {
+ var err error
+ var event interface{} = nil
+ var timedOut bool = false
+
+ subReqMsg := subs.SubReqMsg
+ subReqMsg.RequestId.Id = 123
+ subReqMsg.RequestId.Seq = uint32(subs.GetSubId())
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionRequest(subReqMsg)
if err != nil {
- xapp.Logger.Error("handleSubTimer: %s, Dropping this msg.", err.Error())
- return
+ xapp.Logger.Error("SUBS-SubReq: %s parent %s", idstring(trans, subs, err), parentTrans.String())
+ return event
}
- 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)
+ for retries := uint64(0); retries < e2tMaxSubReqTryCount; retries++ {
+ desc := fmt.Sprintf("SUBS-SubReq: SubReq to E2T (retry %d)", retries)
+ c.rmrSend(desc, subs, trans)
+ event, timedOut = trans.WaitEvent(e2tSubReqTimeout)
+ if timedOut {
+ continue
+ }
+ break
}
- c.timerMap.StartTimer("RIC_SUB_DEL_REQ", int(subId), subDelReqTime, FirstTry, c.handleSubscriptionDeleteRequestTimer)
- return
+ xapp.Logger.Debug("SUBS-SubReq: Response handling event(%s) %s parent %s", typeofSubsMessage(event), idstring(trans, subs, nil), parentTrans.String())
+ return event
}
-func (act Action) String() string {
- actions := [...]string{
- "CREATE",
- "MERGE",
- "NONE",
- "DELETE",
- }
+//-------------------------------------------------------------------
+// send to E2T Subscription Delete Request
+//-------------------------------------------------------------------
- if act < CREATE || act > DELETE {
- return "Unknown"
+func (c *Control) sendE2TSubscriptionDeleteRequest(subs *Subscription, trans *Transaction, parentTrans *Transaction) interface{} {
+ var err error
+ var event interface{}
+ var timedOut bool
+
+ subDelReqMsg := &e2ap.E2APSubscriptionDeleteRequest{}
+ subDelReqMsg.RequestId.Id = 123
+ subDelReqMsg.RequestId.Seq = uint32(subs.GetSubId())
+ subDelReqMsg.FunctionId = subs.SubReqMsg.FunctionId
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionDeleteRequest(subDelReqMsg)
+ if err != nil {
+ xapp.Logger.Error("SUBS-SubDelReq: %s parent %s", idstring(trans, subs, err), parentTrans.String())
+ return event
}
- return actions[act]
-}
-func (act Action) valid() bool {
- switch act {
- case CREATE, MERGE, DELETE:
- return true
- default:
- return false
+ for retries := uint64(0); retries < e2tMaxSubDelReqTryCount; retries++ {
+ desc := fmt.Sprintf("SUBS-SubDelReq: SubDelReq to E2T (retry %d)", retries)
+ c.rmrSend(desc, subs, trans)
+ event, timedOut = trans.WaitEvent(e2tSubDelReqTime)
+ if timedOut {
+ continue
+ }
+ break
}
+ xapp.Logger.Debug("SUBS-SubDelReq: Response handling event(%s) %s parent %s", typeofSubsMessage(event), idstring(trans, subs, nil), parentTrans.String())
+ return event
}
-func (c *Control) handleSubscriptionDeleteRequest(params *xapp.RMRParams) {
- 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)
+//-------------------------------------------------------------------
+// handle from E2T Subscription Reponse
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionResponse(params *RMRParams) {
+ xapp.Logger.Info("MSG-SubResp from E2T: %s", params.String())
+ subRespMsg, err := c.e2ap.UnpackSubscriptionResponse(params.Payload)
if err != nil {
- 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)
+ xapp.Logger.Error("MSG-SubResp %s", idstring(params, nil, err))
return
}
- xapp.Logger.Info("SubDelReq: Received payloadSeqNum: %v", payloadSeqNum)
-
- subs := c.registry.GetSubscription(payloadSeqNum)
- if subs != nil {
- var forwardRespToXapp bool = true
- _, err = c.trackDeleteTransaction(subs, params, payloadSeqNum, forwardRespToXapp)
- if err != nil {
- xapp.Logger.Error("SubDelReq: %s, Dropping this msg.", err.Error())
- return
- }
- subs.UnConfirmed()
- } else {
- xapp.Logger.Error("SubDelReq: Not valid sequence number. Dropping this msg. SubId: %v, Xid: %s", params.SubId, params.Xid)
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint16{uint16(subRespMsg.RequestId.Seq), uint16(params.SubId)})
+ if err != nil {
+ xapp.Logger.Error("MSG-SubResp: %s", idstring(params, nil, err))
return
}
-
- 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("SubDelReq: Failed to send request to E2T. Err %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("MSG-SubResp: %s", idstring(params, subs, err))
+ return
}
- c.timerMap.StartTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum), subDelReqTime, FirstTry, c.handleSubscriptionDeleteRequestTimer)
- return
-}
-
-func (c *Control) trackDeleteTransaction(subs *Subscription, 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 split source address. Err: %s, SubId: %v, Xid: %s", err, payloadSeqNum, params.Xid)
+ sendOk, timedOut := trans.SendEvent(subRespMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubResp: %s", idstring(trans, subs, err))
}
- var respReceived bool = false
- transaction, err = c.tracker.TrackTransaction(subs, RmrEndpoint{*srcAddr, *srcPort}, params, respReceived, forwardRespToXapp)
return
}
-func (c *Control) handleSubscriptionDeleteResponse(params *xapp.RMRParams) (err error) {
- 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)
+//-------------------------------------------------------------------
+// handle from E2T Subscription Failure
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionFailure(params *RMRParams) {
+ xapp.Logger.Info("MSG-SubFail from E2T: %s", params.String())
+ subFailMsg, err := c.e2ap.UnpackSubscriptionFailure(params.Payload)
if err != nil {
- 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("SubDelResp: Received payloadSeqNum: %v", payloadSeqNum)
-
- subs := c.registry.GetSubscription(payloadSeqNum)
- if subs == nil {
- xapp.Logger.Error("SubDelResp: Unknown payloadSeqNum. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
+ xapp.Logger.Error("MSG-SubFail %s", idstring(params, nil, err))
return
}
-
- transaction := subs.GetTransaction()
- if transaction == nil {
- xapp.Logger.Error("SubDelResp: Unknown transaction. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint16{uint16(subFailMsg.RequestId.Seq), uint16(params.SubId)})
+ if err != nil {
+ xapp.Logger.Error("MSG-SubFail: %s", idstring(params, nil, err))
return
}
-
- c.timerMap.StopTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum))
-
- responseReceived := transaction.CheckResponseReceived()
- if responseReceived == true {
- // Subscription Delete timer already received
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("MSG-SubFail: %s", idstring(params, subs, err))
return
}
-
- transaction.Release()
-
- xapp.Logger.Info("SubDelResp: SubId: %v, from address: %s. Forwarding response to xApp", payloadSeqNum, transaction.RmrEndpoint)
- 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("SubDelResp: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid)
- if !c.registry.DelSubscription(payloadSeqNum) {
- xapp.Logger.Error("SubDelResp: Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid)
- return
+ sendOk, timedOut := trans.SendEvent(subFailMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubFail: %s", idstring(trans, subs, err))
}
return
}
-func (c *Control) handleSubscriptionDeleteFailure(params *xapp.RMRParams) {
- 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)
+//-------------------------------------------------------------------
+// handle from E2T Subscription Delete Response
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionDeleteResponse(params *RMRParams) (err error) {
+ xapp.Logger.Info("SUBS-SubDelResp from E2T:%s", params.String())
+ subDelRespMsg, err := c.e2ap.UnpackSubscriptionDeleteResponse(params.Payload)
if err != nil {
- 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)
+ xapp.Logger.Error("SUBS-SubDelResp: %s", idstring(params, nil, err))
return
}
- xapp.Logger.Info("SubDelFail: Received payloadSeqNum: %v", payloadSeqNum)
-
- subs := c.registry.GetSubscription(payloadSeqNum)
- if subs == nil {
- xapp.Logger.Error("SubDelFail: Unknown payloadSeqNum. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
- return
- }
-
- transaction := subs.GetTransaction()
- if transaction == nil {
- xapp.Logger.Error("SubDelFail: Unknown transaction. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint16{uint16(subDelRespMsg.RequestId.Seq), uint16(params.SubId)})
+ if err != nil {
+ xapp.Logger.Error("SUBS-SubDelResp: %s", idstring(params, nil, err))
return
}
-
- c.timerMap.StopTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum))
-
- responseReceived := transaction.CheckResponseReceived()
- if responseReceived == true {
- // Subscription Delete timer already received
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("SUBS-SubDelResp: %s", idstring(params, subs, err))
return
}
- xapp.Logger.Info("SubDelFail: SubId: %v, from address: %s. Forwarding response to xApp", payloadSeqNum, transaction.RmrEndpoint)
-
- 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
- }
-
- 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: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid)
- transaction.Release()
- if !c.registry.DelSubscription(payloadSeqNum) {
- xapp.Logger.Error("SubDelFail: Failed to release sequency number. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
- return
+ sendOk, timedOut := trans.SendEvent(subDelRespMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubDelResp: %s", idstring(trans, subs, err))
}
return
}
-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)
-
- subs := c.registry.GetSubscription(subId)
- if subs == nil {
- xapp.Logger.Error("handleSubDelTimer: Unknown payloadSeqNum. Dropping this msg. SubId: %v", subId)
- return
- }
-
- transaction := subs.GetTransaction()
- if transaction == nil {
- xapp.Logger.Error("handleSubDelTimer: Unknown transaction. Dropping this msg. SubId: %v", subId)
+//-------------------------------------------------------------------
+// handle from E2T Subscription Delete Failure
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionDeleteFailure(params *RMRParams) {
+ xapp.Logger.Info("MSG-SubDelFail from E2T:%s", params.String())
+ subDelFailMsg, err := c.e2ap.UnpackSubscriptionDeleteFailure(params.Payload)
+ if err != nil {
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(params, nil, err))
return
}
-
- responseReceived := transaction.CheckResponseReceived()
- if responseReceived == true {
- // Subscription Delete Response or Failure already received
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint16{uint16(subDelFailMsg.RequestId.Seq), uint16(params.SubId)})
+ if err != nil {
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(params, nil, err))
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
-
- transaction.RetryTransaction()
-
- 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)
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(params, subs, err))
return
}
-
- var params xapp.RMRParams
- 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
- }
-
- 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)
+ sendOk, timedOut := trans.SendEvent(subDelFailMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(trans, subs, err))
}
+ return
+}
- xapp.Logger.Info("handleSubDelTimer: Deleting transaction record. SubId: %v, Xid: %s", subId, params.Xid)
- transaction.Release()
- if !c.registry.DelSubscription(subId) {
- xapp.Logger.Error("handleSubDelTimer: Failed to release sequency number. SubId: %v, Xid: %s", subId, params.Xid)
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func typeofSubsMessage(v interface{}) string {
+ if v == nil {
+ return "NIL"
+ }
+ switch v.(type) {
+ case *e2ap.E2APSubscriptionRequest:
+ return "SubReq"
+ case *e2ap.E2APSubscriptionResponse:
+ return "SubResp"
+ case *e2ap.E2APSubscriptionFailure:
+ return "SubFail"
+ case *e2ap.E2APSubscriptionDeleteRequest:
+ return "SubDelReq"
+ case *e2ap.E2APSubscriptionDeleteResponse:
+ return "SubDelResp"
+ case *e2ap.E2APSubscriptionDeleteFailure:
+ return "SubDelFail"
+ default:
+ return "Unknown"
}
- return
}
Code Review / ric-plt / submgr.git / blobdiff