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"
"time"
registry *Registry
rtmgrClient *RtmgrClient
tracker *Tracker
+ rcChan chan *xapp.RMRParams
}
type RMRMeid struct {
EnbID string
}
-type RMRParams struct {
- Mtype int
- Payload []byte
- PayloadLen int
- Meid *RMRMeid
- Xid string
- SubId int
- Src string
- Mbuf *C.rmr_mbuf_t
-}
-
-var SEEDSN uint16
-var SubscriptionReqChan = make(chan subRouteInfo, 10)
+var seedSN uint16
+var SubscriptionReqChan = make(chan SubRouteInfo, 10)
const (
CREATE Action = 0
- MERGE Action = 1
+ MERGE Action = 1
DELETE Action = 3
)
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 {
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"})
+ 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)
- rtmgrClient := RtmgrClient{client, handle}
+ deleteHandle := rtmgrhandle.NewDeleteXappSubscriptionHandleParamsWithTimeout(10 * time.Second)
+ rtmgrClient := RtmgrClient{client, handle, deleteHandle}
- return Control{new(E2ap), registry, &rtmgrClient, new(Tracker)}
+ return Control{new(E2ap), registry, &rtmgrClient, tracker, make(chan *xapp.RMRParams)}
}
func (c *Control) Run() {
+ go c.controlLoop()
xapp.Run(c)
}
func (c *Control) Consume(rp *xapp.RMRParams) (err error) {
- switch rp.Mtype {
- case C.RIC_SUB_REQ:
- err = c.handleSubscriptionRequest(rp)
- case C.RIC_SUB_RESP:
- err = c.handleSubscriptionResponse(rp)
- case C.RIC_SUB_DEL_REQ:
- err = c.handleSubscriptionDeleteRequest(rp)
- default:
- err = errors.New("Message Type " + strconv.Itoa(rp.Mtype) + " is discarded")
- }
+ c.rcChan <- rp
return
}
return
}
+func (c *Control) rmrReplyToSender(params *xapp.RMRParams) (err error) {
+ if !xapp.Rmr.Send(params, true) {
+ err = errors.New("rmr.Send() failed")
+ }
+ return
+}
+
+func (c *Control) controlLoop() {
+ for {
+ msg := <-c.rcChan
+ switch msg.Mtype {
+ case xapp.RICMessageTypes["RIC_SUB_REQ"]:
+ c.handleSubscriptionRequest(msg)
+ case xapp.RICMessageTypes["RIC_SUB_RESP"]:
+ c.handleSubscriptionResponse(msg)
+ case xapp.RICMessageTypes["RIC_SUB_DEL_REQ"]:
+ c.handleSubscriptionDeleteRequest(msg)
+ case xapp.RICMessageTypes["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) handleSubscriptionRequest(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionRequestSequenceNumber(params.Payload)
+ payloadSeqNum, err := c.e2ap.GetSubscriptionRequestSequenceNumber(params.Payload)
if err != nil {
err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
return
}
- xapp.Logger.Info("Subscription Request Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
+ xapp.Logger.Info("Subscription Request Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payloadSeqNum)
/* Reserve a sequence number and set it in the payload */
- new_sub_id := c.registry.ReserveSequenceNumber()
+ newSubId := c.registry.ReserveSequenceNumber()
- _, err = c.e2ap.SetSubscriptionRequestSequenceNumber(params.Payload, new_sub_id)
+ _, err = c.e2ap.SetSubscriptionRequestSequenceNumber(params.Payload, newSubId)
if err != nil {
err = errors.New("Unable to set Subscription Sequence Number in Payload due to: " + err.Error())
return
}
- src_addr, src_port, err := c.rtmgrClient.SplitSource(params.Src)
+ srcAddr, srcPort, err := c.rtmgrClient.SplitSource(params.Src)
if err != nil {
xapp.Logger.Error("Failed to update routing-manager about the subscription request with reason: %s", err)
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}
- err = c.tracker.Track_transaction(xact_key, &xact_value)
+ xactKey := TransactionKey{newSubId, CREATE}
+ xactValue := Transaction{*srcAddr, *srcPort, params}
+ err = c.tracker.TrackTransaction(xactKey, xactValue)
if err != nil {
- xapp.Logger.Error("Failed to create a transaction record due to %v", err)
+ xapp.Logger.Error("Failed to create a Subscription Request transaction record due to %v", err)
return
}
/* Update routing manager about the new subscription*/
- sub_route_action := subRouteInfo{CREATE, *src_addr, *src_port, new_sub_id }
+ subRouteAction := SubRouteInfo{CREATE, *srcAddr, *srcPort, newSubId}
go c.rtmgrClient.SubscriptionRequestUpdate()
- SubscriptionReqChan <- sub_route_action
+ SubscriptionReqChan <- subRouteAction
// Setting new subscription ID in the RMR header
- params.SubId = int(new_sub_id)
+ params.SubId = int(newSubId)
- xapp.Logger.Info("Generated ID: %v. Forwarding to E2 Termination...", int(new_sub_id))
+ xapp.Logger.Info("Generated ID: %v. Forwarding to E2 Termination...", int(newSubId))
c.rmrSend(params)
+ xapp.Logger.Debug("--- Debugging transaction table = %v", c.tracker.transactionTable)
return
}
func (c *Control) handleSubscriptionResponse(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionResponseSequenceNumber(params.Payload)
+ payloadSeqNum, err := c.e2ap.GetSubscriptionResponseSequenceNumber(params.Payload)
if err != nil {
err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
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("Subscription Response Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payloadSeqNum)
+ if !c.registry.IsValidSequenceNumber(payloadSeqNum) {
+ err = errors.New("Unknown Subscription ID: " + strconv.Itoa(int(payloadSeqNum)) + " in Subscritpion Response. Message discarded.")
return
}
- c.registry.setSubscriptionToConfirmed(payload_seq_num)
+ c.registry.setSubscriptionToConfirmed(payloadSeqNum)
xapp.Logger.Info("Subscription Response Registered. Forwarding to Requestor...")
- c.rmrSend(params)
+ transaction, err := c.tracker.completeTransaction(payloadSeqNum, CREATE)
+ if err != nil {
+ xapp.Logger.Error("Failed to delete a Subscription Request transaction record due to %v", err)
+ return
+ }
+ xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Forwarding to E2 Termination...", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort)
+ params.Mbuf = transaction.OrigParams.Mbuf
+ c.rmrReplyToSender(params)
return
}
}
func (c *Control) handleSubscriptionDeleteRequest(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionDeleteRequestSequenceNumber(params.Payload)
+ 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())
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)
+ xapp.Logger.Info("Subscription Delete Request Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payloadSeqNum)
+ if c.registry.IsValidSequenceNumber(payloadSeqNum) {
+ c.registry.deleteSubscription(payloadSeqNum)
+ trackErr := c.trackDeleteTransaction(params, payloadSeqNum)
+ if trackErr != nil {
+ xapp.Logger.Error("Failed to create a Subscription Delete Request transaction record due to %v", trackErr)
+ return trackErr
+ }
}
- xapp.Logger.Info("Subscription ID: %v. Forwarding to E2 Termination...", int(payload_seq_num))
+ xapp.Logger.Info("Subscription ID: %v. Forwarding to E2 Termination...", int(payloadSeqNum))
c.rmrSend(params)
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("Failed to update routing-manager about the subscription delete request with reason: %s", err)
+ }
+ 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) {
+ payloadSeqNum, err := c.e2ap.GetSubscriptionDeleteResponseSequenceNumber(params.Payload)
+ if err != nil {
+ err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ return
+ }
+ var transaction, _ = c.tracker.RetriveTransaction(payloadSeqNum, DELETE)
+ subRouteAction := SubRouteInfo{DELETE, transaction.XappInstanceAddress, transaction.XappPort, payloadSeqNum}
+ go c.rtmgrClient.SubscriptionRequestUpdate()
+ SubscriptionReqChan <- subRouteAction
+
+ xapp.Logger.Info("Subscription Delete Response Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payloadSeqNum)
+ if c.registry.releaseSequenceNumber(payloadSeqNum) {
+ transaction, err = c.tracker.completeTransaction(payloadSeqNum, DELETE)
+ if err != nil {
+ xapp.Logger.Error("Failed to delete a Subscription Delete Request transaction record due to %v", err)
+ return
+ }
+ xapp.Logger.Info("Subscription ID: %v, from address: %v:%v. Forwarding to E2 Termination...", int(payloadSeqNum), transaction.XappInstanceAddress, transaction.XappPort)
+ //params.Src = xAddress + ":" + strconv.Itoa(int(xPort))
+ params.Mbuf = transaction.OrigParams.Mbuf
+ c.rmrReplyToSender(params)
+ }
+ return
+}
Code Review / ric-plt / submgr.git / blobdiff