package control
-/*
-#include <rmr/RIC_message_types.h>
-#include <rmr/rmr.h>
-
-#cgo CFLAGS: -I../
-#cgo LDFLAGS: -lrmr_nng -lnng
-*/
-import "C"
-
import (
"errors"
- "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
- "github.com/spf13/viper"
- "github.com/go-openapi/strfmt"
- httptransport "github.com/go-openapi/runtime/client"
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"
- "strconv"
+ "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
+
type Control struct {
- e2ap *E2ap
- registry *Registry
- rtmgrClient *RtmgrClient
- tracker *Tracker
- rc_chan chan *xapp.RMRParams
+ 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
}
-var SEEDSN uint16
-var SubscriptionReqChan = make(chan subRouteInfo, 10)
+var seedSN uint16
const (
CREATE Action = 0
- MERGE Action = 1
+ MERGE Action = 1
+ NONE Action = 2
DELETE Action = 3
)
func init() {
+ xapp.Logger.Info("SUBMGR")
viper.AutomaticEnv()
viper.SetEnvPrefix("submgr")
viper.AllowEmptyEnv(true)
- SEEDSN = uint16(viper.GetInt("seed_sn"))
- if SEEDSN == 0 {
+ seedSN = uint16(viper.GetInt("seed_sn"))
+ if seedSN == 0 {
rand.Seed(time.Now().UnixNano())
- SEEDSN = uint16(rand.Intn(65535))
+ seedSN = uint16(rand.Intn(65535))
}
- if SEEDSN > 65535 {
- SEEDSN = 0
+ if seedSN > 65535 {
+ seedSN = 0
}
- xapp.Logger.Info("SUBMGR: Initial Sequence Number: %v", SEEDSN)
+ xapp.Logger.Info("SUBMGR: Initial Sequence Number: %v", seedSN)
}
-func NewControl() Control {
+func NewControl() *Control {
registry := new(Registry)
- registry.Initialize(SEEDSN)
+ registry.Initialize(seedSN)
tracker := new(Tracker)
tracker.Init()
- transport := httptransport.New(viper.GetString("rtmgr.HostAddr") + ":" + viper.GetString("rtmgr.port"), viper.GetString("rtmgr.baseUrl"), []string{"http"})
+ 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)
- delete_handle := rtmgrhandle.NewDeleteXappSubscriptionHandleParamsWithTimeout(10 * time.Second)
- rtmgrClient := RtmgrClient{client, handle, delete_handle}
-
- return Control{new(E2ap), registry, &rtmgrClient, tracker, make(chan *xapp.RMRParams)}
+ deleteHandle := rtmgrhandle.NewDeleteXappSubscriptionHandleParamsWithTimeout(10 * time.Second)
+ rtmgrClient := RtmgrClient{client, handle, deleteHandle}
+
+ return &Control{e2ap: new(E2ap),
+ registry: registry,
+ rtmgrClient: &rtmgrClient,
+ tracker: tracker,
+ timerMap: timerMap,
+ }
}
func (c *Control) Run() {
- go c.controlLoop()
xapp.Run(c)
}
-func (c *Control) Consume(rp *xapp.RMRParams) (err error) {
- c.rc_chan <- rp
- return
-}
-
func (c *Control) rmrSend(params *xapp.RMRParams) (err error) {
- if !xapp.Rmr.Send(params, false) {
+ status := false
+ i := 1
+ 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)
+ time.Sleep(500 * time.Millisecond)
+ }
+ }
+ if status == false {
err = errors.New("rmr.Send() failed")
+ xapp.Rmr.Free(params.Mbuf)
}
return
}
func (c *Control) rmrReplyToSender(params *xapp.RMRParams) (err error) {
- if !xapp.Rmr.Send(params, true) {
- err = errors.New("rmr.Send() failed")
- }
+ c.rmrSend(params)
return
}
-func (c *Control) controlLoop() {
- for {
- msg := <-c.rc_chan
- switch msg.Mtype {
- case C.RIC_SUB_REQ:
- c.handleSubscriptionRequest(msg)
- case C.RIC_SUB_RESP:
- c.handleSubscriptionResponse(msg)
- case C.RIC_SUB_DEL_REQ:
- c.handleSubscriptionDeleteRequest(msg)
- case C.RIC_SUB_DEL_RESP:
- c.handleSubscriptionDeleteResponse(msg)
- default:
- err := errors.New("Message Type " + strconv.Itoa(msg.Mtype) + " is discarded")
- xapp.Logger.Error("Unknown message type: %v", err)
- }
+func (c *Control) Consume(msg *xapp.RMRParams) (err error) {
+ switch msg.Mtype {
+ case xapp.RICMessageTypes["RIC_SUB_REQ"]:
+ go c.handleSubscriptionRequest(msg)
+ case xapp.RICMessageTypes["RIC_SUB_RESP"]:
+ go c.handleSubscriptionResponse(msg)
+ case xapp.RICMessageTypes["RIC_SUB_FAILURE"]:
+ go c.handleSubscriptionFailure(msg)
+ case xapp.RICMessageTypes["RIC_SUB_DEL_REQ"]:
+ 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)
}
+ return nil
}
-func (c *Control) handleSubscriptionRequest(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionRequestSequenceNumber(params.Payload)
+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
+
+ /* Reserve a sequence number and set it in the payload */
+ newSubId, isIdValid := c.registry.ReserveSequenceNumber()
+ if isIdValid != true {
+ 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 {
- err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ 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
}
- xapp.Logger.Info("Subscription Request Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
- /* Reserve a sequence number and set it in the payload */
- new_sub_id := c.registry.ReserveSequenceNumber()
+ 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)
+ c.registry.releaseSequenceNumber(newSubId)
+ return
+ }
- _, err = c.e2ap.SetSubscriptionRequestSequenceNumber(params.Payload, new_sub_id)
+ // 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 {
- err = errors.New("Unable to set Subscription Sequence Number in Payload due to: " + err.Error())
+ 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
}
- src_addr, src_port, err := c.rtmgrClient.SplitSource(params.Src)
+ // 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 about the subscription request with reason: %s", err)
+ 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
}
- /* Create transatcion records for every subscription request */
- xact_key := Transaction_key{new_sub_id, CREATE}
- xact_value := Transaction{*src_addr, *src_port, params.Payload, params.Mbuf}
- err = c.tracker.Track_transaction(xact_key, xact_value)
+ // 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(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("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("Failed to create a transaction record due to %v", err)
+ 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)
- /* Update routing manager about the new subscription*/
- sub_route_action := subRouteInfo{CREATE, *src_addr, *src_port, new_sub_id }
- go c.rtmgrClient.SubscriptionRequestUpdate()
- SubscriptionReqChan <- sub_route_action
+ if !c.registry.IsValidSequenceNumber(payloadSeqNum) {
+ xapp.Logger.Error("SubResp: Unknown payloadSeqNum. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId)
+ return
+ }
- // Setting new subscription ID in the RMR header
- params.SubId = int(new_sub_id)
+ c.timerMap.StopTimer("RIC_SUB_REQ", int(payloadSeqNum))
- xapp.Logger.Info("Generated ID: %v. Forwarding to E2 Termination...", int(new_sub_id))
- c.rmrSend(params)
- xapp.Logger.Info("--- Debugging transaction table = %v", c.tracker.transaction_table)
+ transaction, responseReceived, err := c.tracker.CheckResponseReceived(payloadSeqNum, CREATE)
+ if err != nil {
+ 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("SubResp: SubId: %v, from address: %v:%v.", payloadSeqNum, transaction.Xappkey.Addr, transaction.Xappkey.Port)
+
+ 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("SubResp: Failed to send response to xApp. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ }
+
+ 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("SubResp: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ return
+ }
return
}
-func (c *Control) handleSubscriptionResponse(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionResponseSequenceNumber(params.Payload)
+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
+
+ payloadSeqNum, err := c.e2ap.GetSubscriptionFailureSequenceNumber(params.Payload)
if err != nil {
- err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ 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("Subscription Response Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
- if !c.registry.IsValidSequenceNumber(payload_seq_num) {
- err = errors.New("Unknown Subscription ID: " + strconv.Itoa(int(payload_seq_num)) + " in Subscritpion Response. Message discarded.")
+ xapp.Logger.Info("SubFail: Received payloadSeqNum: %v", payloadSeqNum)
+
+ c.timerMap.StopTimer("RIC_SUB_REQ", int(payloadSeqNum))
+
+ 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
+ }
+
+ 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("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("SubFail: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ }
+
+ xapp.Logger.Info("SubFail: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid)
+ if c.registry.releaseSequenceNumber(payloadSeqNum) {
+ _, err = c.tracker.completeTransaction(payloadSeqNum, CREATE)
+ if err != nil {
+ 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("SubFail: Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid)
+ return
+ }
+ 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)
+
+ transaction, responseReceived, err := c.tracker.CheckResponseReceived(subId, CREATE)
+ if err != nil {
+ 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
+ }
+
+ 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 = 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
+
+ // Delete CREATE transaction
+ _, err = c.tracker.completeTransaction(subId, CREATE)
+ if err != nil {
+ 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
}
- c.registry.setSubscriptionToConfirmed(payload_seq_num)
- xapp.Logger.Info("Subscription Response Registered. Forwarding to Requestor...")
- transaction, err := c.tracker.complete_transaction(payload_seq_num, DELETE)
+
+ // Create DELETE transaction
+ var forwardRespToXapp bool = false
+ _, err = c.trackDeleteTransaction(¶ms, subId, forwardRespToXapp)
if err != nil {
- xapp.Logger.Error("Failed to create a transaction record due to %v", err)
+ 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("Subscription ID: %v, from address: %v:%v. Forwarding to E2 Termination...", int(payload_seq_num), transaction.Xapp_instance_address, transaction.Xapp_port)
- params.Mbuf = transaction.Mbuf
- c.rmrReplyToSender(params)
+
+ 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
}
actions := [...]string{
"CREATE",
"MERGE",
+ "NONE",
"DELETE",
}
}
}
-func (c *Control) handleSubscriptionDeleteRequest(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionDeleteRequestSequenceNumber(params.Payload)
+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)
if err != nil {
- err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ 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("Subscription Delete Request Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
- if c.registry.IsValidSequenceNumber(payload_seq_num) {
- c.registry.deleteSubscription(payload_seq_num)
- trackErr := c.trackDeleteTransaction(params, payload_seq_num)
- if trackErr != nil {
- xapp.Logger.Error("Failed to create a transaction record due to %v", err)
- return trackErr
+ xapp.Logger.Info("SubDelReq: Received payloadSeqNum: %v", payloadSeqNum)
+
+ if c.registry.IsValidSequenceNumber(payloadSeqNum) {
+ c.registry.deleteSubscription(payloadSeqNum)
+ var forwardRespToXapp bool = true
+ _, err = c.trackDeleteTransaction(params, payloadSeqNum, forwardRespToXapp)
+ if err != nil {
+ 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("SubDelReq: Not valid sequence number. Dropping this msg. SubId: %v, Xid: %s", params.SubId, params.Xid)
+ return
}
- xapp.Logger.Info("Subscription ID: %v. Forwarding to E2 Termination...", int(payload_seq_num))
+
+ 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)
+ }
+ c.timerMap.StartTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum), subDelReqTime, FirstTry, c.handleSubscriptionDeleteRequestTimer)
return
}
-func (c *Control) trackDeleteTransaction(params *xapp.RMRParams, payload_seq_num uint16) (err error) {
- src_addr, src_port, err := c.rtmgrClient.SplitSource(params.Src)
- xact_key := Transaction_key{payload_seq_num, DELETE}
- xact_value := Transaction{*src_addr, *src_port, params.Payload, params.Mbuf}
- err = c.tracker.Track_transaction(xact_key, xact_value)
+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 split source address. Err: %s, SubId: %v, Xid: %s", err, payloadSeqNum, params.Xid)
+ }
+ 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) {
- payload_seq_num, err := c.e2ap.GetSubscriptionDeleteResponseSequenceNumber(params.Payload)
+ 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("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)
+
+ c.timerMap.StopTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum))
+
+ 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
+ }
+
+ 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)
+
+ 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: 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("SubDelResp: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ return
+ }
+
+ xapp.Logger.Info("SubDelResp: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid)
+ if c.registry.releaseSequenceNumber(payloadSeqNum) {
+ _, err = c.tracker.completeTransaction(payloadSeqNum, DELETE)
+ if err != nil {
+ 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("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("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("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("SubDelFail: Received payloadSeqNum: %v", payloadSeqNum)
+
+ c.timerMap.StopTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum))
+
+ 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
+ }
+
+ 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)
+
+ 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: 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("SubDelFail: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ return
+ }
+
+ xapp.Logger.Info("SubDelFail: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid)
+ if c.registry.releaseSequenceNumber(payloadSeqNum) {
+ _, err = c.tracker.completeTransaction(payloadSeqNum, DELETE)
+ if err != nil {
+ 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("SubDelFail: Failed to release sequency number. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)
+ return
+ }
+ 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)
+
+ transaction, responseReceived, err := c.tracker.CheckResponseReceived(subId, DELETE)
+ if err != nil {
+ 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
+ }
+
+ 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)
+ }
+
+ 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 {
- err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ xapp.Logger.Error("handleSubDelTimer: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, subId, params.Xid)
return
}
- var transaction , _= c.tracker.Retrive_transaction(payload_seq_num, DELETE)
- sub_route_action := subRouteInfo{DELETE, transaction.Xapp_instance_address, transaction.Xapp_port, payload_seq_num }
- go c.rtmgrClient.SubscriptionRequestUpdate()
- SubscriptionReqChan <- sub_route_action
- xapp.Logger.Info("Subscription Delete Response Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
- if c.registry.releaseSequenceNumber(payload_seq_num) {
- transaction, err = c.tracker.complete_transaction(payload_seq_num, 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 create a 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
}
- xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Forwarding to E2 Termination...", int(payload_seq_num), transaction.Xapp_instance_address, transaction.Xapp_port)
- //params.Src = xAddress + ":" + strconv.Itoa(int(xPort))
- params.Mbuf = transaction.Mbuf
- c.rmrReplyToSender(params)
+ } else {
+ xapp.Logger.Error("handleSubDelTimer: Failed to release sequency number. SubId: %v, Xid: %s", subId, params.Xid)
}
return
}
Code Review / ric-plt / submgr.git / blobdiff