2 // Copyright 2019 AT&T Intellectual Property
3 // Copyright 2019 Nokia
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
17 // This source code is part of the near-RT RIC (RAN Intelligent Controller)
18 // platform project (RICP).
24 "e2mgr/e2managererrors"
30 "e2mgr/services/rmrsender"
31 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
35 type RanSetupManager struct {
37 rnibDataService services.RNibDataService
38 rmrSender *rmrsender.RmrSender
41 type IRanSetupManager interface {
42 ExecuteSetup(nodebInfo *entities.NodebInfo, status entities.ConnectionStatus) error
45 func NewRanSetupManager(logger *logger.Logger, rmrSender *rmrsender.RmrSender, rnibDataService services.RNibDataService) *RanSetupManager {
46 return &RanSetupManager{
48 rnibDataService: rnibDataService,
53 // Update retries and connection status
54 func (m *RanSetupManager) updateConnectionStatus(nodebInfo *entities.NodebInfo, status entities.ConnectionStatus) error {
55 // Update retries and connection status
56 nodebInfo.ConnectionStatus = status
57 nodebInfo.ConnectionAttempts++
58 err := m.rnibDataService.UpdateNodebInfo(nodebInfo)
60 m.logger.Errorf("#RanSetupManager.updateConnectionStatus - Ran name: %s - Failed updating RAN's connection status to %v : %s", nodebInfo.RanName, status, err)
62 m.logger.Infof("#RanSetupManager.updateConnectionStatus - Ran name: %s - Successfully updated rNib. RAN's current connection status: %v, RAN's current connection attempts: %d", nodebInfo.RanName, status, nodebInfo.ConnectionAttempts)
67 // Decrement retries and connection status (disconnected)
68 func (m *RanSetupManager) updateConnectionStatusDisconnected(nodebInfo *entities.NodebInfo) error {
69 // Update retries and connection status
70 nodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
71 nodebInfo.ConnectionAttempts--
72 err := m.rnibDataService.UpdateNodebInfo(nodebInfo)
74 m.logger.Errorf("#RanSetupManager.updateConnectionStatusDisconnected - Ran name: %s - Failed updating RAN's connection status to DISCONNECTED : %s", nodebInfo.RanName, err)
76 m.logger.Infof("#RanSetupManager.updateConnectionStatusDisconnected - Ran name: %s - Successfully updated rNib. RAN's current connection status: DISCONNECTED, RAN's current connection attempts: %d", nodebInfo.RanName, nodebInfo.ConnectionAttempts)
81 func (m *RanSetupManager) prepareSetupRequest(nodebInfo *entities.NodebInfo) (int, *models.E2RequestMessage, error) {
82 // Build the endc/x2 setup request
83 switch nodebInfo.E2ApplicationProtocol {
84 case entities.E2ApplicationProtocol_X2_SETUP_REQUEST:
85 rmrMsgType := rmrCgo.RIC_X2_SETUP_REQ
86 request := models.NewE2RequestMessage(nodebInfo.RanName /*tid*/, nodebInfo.Ip, uint16(nodebInfo.Port), nodebInfo.RanName, e2pdus.PackedX2setupRequest)
87 return rmrMsgType, request, nil
88 case entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST:
89 rmrMsgType := rmrCgo.RIC_ENDC_X2_SETUP_REQ
90 request := models.NewE2RequestMessage(nodebInfo.RanName /*tid*/, nodebInfo.Ip, uint16(nodebInfo.Port), nodebInfo.RanName, e2pdus.PackedEndcX2setupRequest)
91 return rmrMsgType, request, nil
94 m.logger.Errorf("#RanSetupManager.prepareSetupRequest - Unsupported nodebInfo.E2ApplicationProtocol %d ", nodebInfo.E2ApplicationProtocol)
95 return 0, nil, e2managererrors.NewInternalError()
98 // ExecuteSetup updates the connection status and number of attempts in the nodebInfo and send an endc/x2 setup request to establish a connection with the RAN
99 func (m *RanSetupManager) ExecuteSetup(nodebInfo *entities.NodebInfo, status entities.ConnectionStatus) error {
101 // Update retries and connection status
102 if err := m.updateConnectionStatus(nodebInfo, status); err != nil {
103 return e2managererrors.NewRnibDbError()
106 // Build the endc/x2 setup request
107 rmrMsgType, request, err := m.prepareSetupRequest(nodebInfo)
112 // Send the endc/x2 setup request
114 var msgSrc unsafe.Pointer
115 msg := models.NewRmrMessage(rmrMsgType, nodebInfo.RanName, request.GetMessageAsBytes(m.logger), xAction, msgSrc)
117 err = m.rmrSender.Send(msg)
120 m.logger.Errorf("#RanSetupManager.ExecuteSetup - failed sending setup request to RMR: %s", err)
122 err := m.updateConnectionStatusDisconnected(nodebInfo)
124 // Decrement retries and connection status (disconnected)
126 return e2managererrors.NewRnibDbError()
129 return e2managererrors.NewRmrError()