| /* |
| ================================================================================== |
| Copyright (c) 2019 AT&T Intellectual Property. |
| Copyright (c) 2019 Nokia |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ================================================================================== |
| */ |
| |
| package control |
| |
| import "C" |
| |
| import ( |
| "errors" |
| 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 |
| |
| type Control struct { |
| e2ap *E2ap |
| registry *Registry |
| rtmgrClient *RtmgrClient |
| tracker *Tracker |
| timerMap *TimerMap |
| rmrSendMutex sync.Mutex |
| } |
| |
| type RMRMeid struct { |
| PlmnID string |
| EnbID string |
| RanName string |
| } |
| |
| var seedSN uint16 |
| |
| const ( |
| CREATE Action = 0 |
| MERGE Action = 1 |
| NONE Action = 2 |
| DELETE Action = 3 |
| ) |
| |
| func init() { |
| xapp.Logger.Info("SUBMGR /ric-plt-submgr:r3-test-v4") |
| 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 { |
| registry := new(Registry) |
| registry.Initialize(seedSN) |
| |
| 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} |
| |
| return &Control{e2ap: new(E2ap), |
| registry: registry, |
| rtmgrClient: &rtmgrClient, |
| tracker: tracker, |
| timerMap: timerMap, |
| } |
| } |
| |
| func (c *Control) Run() { |
| xapp.Run(c) |
| } |
| |
| func (c *Control) rmrSend(params *xapp.RMRParams) (err error) { |
| 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) { |
| c.rmrSend(params) |
| return |
| } |
| |
| 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) { |
| 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) |
| return |
| } |
| |
| err := c.e2ap.SetSubscriptionRequestSequenceNumber(params.Payload, newSubId) |
| if err != nil { |
| xapp.Logger.Error("SubReq: Unable to set Sequence Number in Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| |
| 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 |
| } |
| |
| /* Create transatcion records for every subscription request */ |
| xactKey := TransactionKey{newSubId, CREATE} |
| xactValue := Transaction{*srcAddr, *srcPort, params} |
| err = c.tracker.TrackTransaction(xactKey, xactValue) |
| if err != nil { |
| xapp.Logger.Error("SubReq: Failed to create transaction record. Dropping this msg. Err: %v SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| |
| /* Update routing manager about the new subscription*/ |
| subRouteAction := SubRouteInfo{CREATE, *srcAddr, *srcPort, newSubId} |
| 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("SubReq: Failed to update routing manager. Dropping this SubReq msg. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| |
| // Setting new subscription ID in the RMR header |
| params.SubId = int(newSubId) |
| xapp.Logger.Info("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) |
| } else { |
| c.timerMap.StartTimer("RIC_SUB_REQ", int(newSubId), subReqTime, 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("SubResp: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubResp: Received payloadSeqNum: %v", payloadSeqNum) |
| |
| if !c.registry.IsValidSequenceNumber(payloadSeqNum) { |
| xapp.Logger.Error("SubResp: Unknown payloadSeqNum. Dropping this msg. PayloadSeqNum: %v, SubId: %v", payloadSeqNum, params.SubId) |
| return |
| } |
| |
| c.timerMap.StopTimer("RIC_SUB_REQ", int(payloadSeqNum)) |
| |
| c.registry.setSubscriptionToConfirmed(payloadSeqNum) |
| var transaction Transaction |
| transaction, err = c.tracker.RetriveTransaction(payloadSeqNum, CREATE) |
| if err != nil { |
| xapp.Logger.Error("SubResp: Failed to retrive transaction record. Dropping this msg. Err: %v, SubId: %v", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubResp: SubId: %v, from address: %v:%v. Retrieved old subId", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) |
| |
| 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", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) |
| transaction, 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) 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 { |
| xapp.Logger.Error("SubFail: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubFail: Received payloadSeqNum: %v", 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("SubFail: Failed to retrive transaction record. Dropping this msg. Err: %v, SubId: %v", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubFail: SubId: %v, from address: %v:%v. Forwarding response to xApp", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) |
| |
| params.SubId = int(payloadSeqNum) |
| params.Xid = transaction.OrigParams.Xid |
| |
| xapp.Logger.Info("Forwarding SubFail 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("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("SubFail: Starting routing manager update. SubId: %v, Xid: %s", params.SubId, params.Xid) |
| subRouteAction := SubRouteInfo{CREATE, transaction.XappInstanceAddress, transaction.XappPort, payloadSeqNum} |
| 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) { |
| transaction, 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) { |
| newSubId := uint16(nbrId) |
| xapp.Logger.Info("SubReq timer expired. newSubId: %v", newSubId) |
| // var causeContent uint8 = 1 // just some random cause. To be checked later. Should be no respose or something |
| // var causeVal uint8 = 1 // just some random val. To be checked later. Should be no respose or something |
| // c.sendSubscriptionFailure(newSubId, causeContent, causeVal) |
| } |
| |
| /* |
| func (c *Control) sendSubscriptionFailure(subId uint16, causeContent uint8, causeVal uint8) { |
| |
| transaction, err := c.tracker.completeTransaction(subId, CREATE) |
| if err != nil { |
| xapp.Logger.Error("SendSubFail: Failed to delete transaction record. Err:%v. SubId: %v", err, subId) |
| return |
| } |
| xapp.Logger.Info("SendSubFail: SubId: %v, Xid %v, Meid: %v", subId, transaction.OrigParams.Xid, transaction.OrigParams.Meid) |
| |
| var params xapp.RMRParams |
| params.Mtype = 12012 //xapp.RICMessageTypes["RIC_SUB_FAILURE"] |
| params.SubId = int(subId) |
| params.Meid = transaction.OrigParams.Meid |
| params.Xid = transaction.OrigParams.Xid |
| |
| // newPayload, packErr := c.e2ap.PackSubscriptionFailure(transaction.OrigParams.Payload, subId, causeContent, causeVal) |
| // if packErr != nil { |
| // xapp.Logger.Error("SendSubFail: PackSubscriptionFailure() due to %v", packErr) |
| // return |
| // } |
| |
| newPayload := []byte("40CA4018000003EA7E00050000010016EA6300020021EA74000200C0") // Temporary solution |
| |
| params.PayloadLen = len(newPayload) |
| params.Payload = newPayload |
| |
| xapp.Logger.Info("SendSubFail: Forwarding failure 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("SendSubFail: 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("SendSubFail: SubId: %v, from address: %v:%v. Deleting transaction record", int(subId), transaction.XappInstanceAddress, transaction.XappPort) |
| |
| xapp.Logger.Info("SubReqTimer: Starting routing manager update. SubId: %v, Xid: %s", params.SubId, params.Xid) |
| subRouteAction := SubRouteInfo{DELETE, transaction.XappInstanceAddress, transaction.XappPort, subId} |
| err = c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) |
| if err != nil { |
| xapp.Logger.Error("SendSubFail: Failed to update routing manager %v. SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| |
| xapp.Logger.Info("SendSubFail: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid) |
| if c.registry.releaseSequenceNumber(subId) { |
| transaction, err = c.tracker.completeTransaction(subId, CREATE) |
| if err != nil { |
| xapp.Logger.Error("SendSubFail: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| } else { |
| xapp.Logger.Error("SendSubFail: Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid) |
| } |
| return |
| } |
| */ |
| |
| func (act Action) String() string { |
| actions := [...]string{ |
| "CREATE", |
| "MERGE", |
| "NONE", |
| "DELETE", |
| } |
| |
| if act < CREATE || act > DELETE { |
| return "Unknown" |
| } |
| return actions[act] |
| } |
| |
| func (act Action) valid() bool { |
| switch act { |
| case CREATE, MERGE, DELETE: |
| return true |
| default: |
| return false |
| } |
| } |
| |
| 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 { |
| xapp.Logger.Error("SubDelReq: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| xapp.Logger.Info("SubDelReq: Received payloadSeqNum: %v", payloadSeqNum) |
| |
| if c.registry.IsValidSequenceNumber(payloadSeqNum) { |
| c.registry.deleteSubscription(payloadSeqNum) |
| err = c.trackDeleteTransaction(params, payloadSeqNum) |
| 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("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) |
| } else { |
| c.timerMap.StartTimer("RIC_SUB_DEL_REQ", int(payloadSeqNum), subReqTime, c.handleSubscriptionDeleteRequestTimer) |
| } |
| return |
| } |
| |
| func (c *Control) trackDeleteTransaction(params *xapp.RMRParams, payloadSeqNum uint16) (err error) { |
| srcAddr, srcPort, err := c.rtmgrClient.SplitSource(params.Src) |
| if err != nil { |
| xapp.Logger.Error("SubDelReq: Failed to update routing-manager. Err: %s, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| } |
| xactKey := TransactionKey{payloadSeqNum, DELETE} |
| xactValue := Transaction{*srcAddr, *srcPort, params} |
| err = c.tracker.TrackTransaction(xactKey, xactValue) |
| 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) |
| if err != nil { |
| xapp.Logger.Error("SubDelResp: Unable to get Sequence Number from Payload. Dropping this msg. Err: %v, SubId: %v", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubDelResp: Received payloadSeqNum: %v", 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("SubDelResp: Failed to retrive transaction record. Dropping this msg. Err: %v, SubId: %v", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubDelResp: SubId: %v, from address: %v:%v. Forwarding response to xApp", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) |
| |
| 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) |
| // return |
| } |
| |
| 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.XappInstanceAddress, transaction.XappPort, 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) { |
| transaction, 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", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubDelFail: Received payloadSeqNum: %v", 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("SubDelFail: Failed to retrive transaction record. Dropping msg. Err %v, SubId: %v", err, params.SubId) |
| return |
| } |
| xapp.Logger.Info("SubDelFail: SubId: %v, from address: %v:%v. Forwarding response to xApp", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort) |
| |
| params.SubId = int(payloadSeqNum) |
| params.Xid = transaction.OrigParams.Xid |
| xapp.Logger.Info("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("Failed to send SubDelFail to xApp. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| // return |
| } |
| |
| 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.XappInstanceAddress, transaction.XappPort, payloadSeqNum} |
| 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) { |
| transaction, 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) { |
| newSubId := uint16(nbrId) |
| xapp.Logger.Info("SubDelReq timer expired. newSubId: %v", newSubId) |
| // var causeContent uint8 = 1 // just some random cause. To be checked later. Should be no respose or something |
| // var causeVal uint8 = 1 // just some random val. To be checked later. Should be no respose or something |
| // c.sendSubscriptionDeleteFailure(newSubId, causeContent, causeVal) |
| } |
| |
| /* |
| func (c *Control) sendSubscriptionDeleteFailure(subId uint16, causeContent uint8, causeVal uint8) { |
| transaction, err := c.tracker.completeTransaction(subId, DELETE) |
| if err != nil { |
| xapp.Logger.Error("SendSubDelFail: Failed to delete transaction record. Err: %v, newSubId: %v", err, subId) |
| return |
| } |
| xapp.Logger.Info("SendSubDelFail: 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 |
| |
| // newPayload, packErr := c.e2ap.PackSubscriptionDeleteFailure(transaction.OrigParams.Payload, subId, causeContent, causeVal) |
| // if packErr != nil { |
| // xapp.Logger.Error("SendSubDelFail: PackSubscriptionDeleteFailure(). Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid)) |
| // return |
| // } |
| |
| newPayload := []byte("40CA4018000003EA7E00050000010016EA6300020021EA74000200C0") // Temporary solution |
| |
| params.PayloadLen = len(newPayload) |
| params.Payload = newPayload |
| |
| xapp.Logger.Info("SendSubDelFail: Forwarding failure 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("SendSubDelFail: 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("SendSubDelFail: SubId: %v, from address: %v:%v. Deleting transaction record", int(subId), transaction.XappInstanceAddress, transaction.XappPort) |
| |
| xapp.Logger.Info("SendSubDelFail: Starting routing manager update. SubId: %v, Xid: %s", params.SubId, params.Xid) |
| subRouteAction := SubRouteInfo{DELETE, transaction.XappInstanceAddress, transaction.XappPort, subId} |
| err = c.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) |
| if err != nil { |
| xapp.Logger.Error("SendSubDelFail: Failed to update routing manager. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| |
| xapp.Logger.Info("SendSubDelFail: Deleting transaction record. SubId: %v, Xid: %s", params.SubId, params.Xid) |
| if c.registry.releaseSequenceNumber(subId) { |
| transaction, err = c.tracker.completeTransaction(subId, DELETE) |
| if err != nil { |
| xapp.Logger.Error("SendSubDelFail: Failed to delete transaction record. Err: %v, SubId: %v, Xid: %s", err, params.SubId, params.Xid) |
| return |
| } |
| } else { |
| xapp.Logger.Error("SendSubDelFail: Failed to release sequency number. SubId: %v, Xid: %s", params.SubId, params.Xid) |
| } |
| return |
| } |
| */ |