2 ==================================================================================
3 Copyright (c) 2019 AT&T Intellectual Property.
4 Copyright (c) 2019 Nokia
6 Licensed under the Apache License, Version 2.0 (the "License");
7 you may not use this file except in compliance with the License.
8 You may obtain a copy of the License at
10 http://www.apache.org/licenses/LICENSE-2.0
12 Unless required by applicable law or agreed to in writing, software
13 distributed under the License is distributed on an "AS IS" BASIS,
14 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 See the License for the specific language governing permissions and
16 limitations under the License.
17 ==================================================================================
21 Abstract: Contains RPE (Route Policy Engine) module definitions and generic RPE components
29 "routing-manager/pkg/rtmgr"
30 "routing-manager/pkg/sbi"
36 SupportedRpes = []*EngineConfig{
41 Instance: NewRmrPush(),
47 func GetRpe(rpeName string) (Engine, error) {
48 for _, rpe := range SupportedRpes {
49 if rpe.Name == rpeName && rpe.IsAvailable {
50 return rpe.Instance, nil
53 return nil, errors.New("SBI:" + rpeName + " is not supported or still not a available")
59 func getEndpointByName(eps *rtmgr.Endpoints, name string) *rtmgr.Endpoint {
60 for _, ep := range *eps {
62 rtmgr.Logger.Debug("name: %s", ep.Name)
63 rtmgr.Logger.Debug("ep: %v", ep)
70 func getEndpointByUuid(uuid string) *rtmgr.Endpoint {
71 endPoints := rtmgr.Eps
72 for _, ep := range endPoints {
74 rtmgr.Logger.Debug("name: %s", ep.Uuid)
75 rtmgr.Logger.Debug("ep: %v", ep)
82 func (r *Rpe) addRoute(messageType string, tx *rtmgr.Endpoint, rx *rtmgr.Endpoint, routeTable *rtmgr.RouteTable, subId int32) {
83 if tx != nil && rx != nil {
84 txList := rtmgr.EndpointList{*tx}
85 rxList := []rtmgr.EndpointList{[]rtmgr.Endpoint{*rx}}
86 messageId := rtmgr.MessageTypes[messageType]
87 route := rtmgr.RouteTableEntry{
88 MessageType: messageId,
92 *routeTable = append(*routeTable, route)
93 rtmgr.Logger.Debug("Route added: MessageTyp: %v, Tx: %v, Rx: %v, SubId: %v", messageId, tx.Uuid, rx.Uuid, subId)
94 rtmgr.Logger.Trace("Route added: MessageTyp: %v, Tx: %v, Rx: %v, SubId: %v", messageId, tx, rx, subId)
96 pc,_,_,ok := runtime.Caller(1)
97 details := runtime.FuncForPC(pc)
98 if ok && details != nil {
99 rtmgr.Logger.Error("Route addition skipped: Either TX or RX endpoint not present. Caller function is %s", details.Name())
104 func (r *Rpe) generateXappRoutes(xAppEp *rtmgr.Endpoint, e2TermEp *rtmgr.Endpoint, subManEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
105 rtmgr.Logger.Debug("rpe.generateXappRoutes invoked")
106 rtmgr.Logger.Debug("Endpoint: %v, xAppType: %v", xAppEp.Name, xAppEp.XAppType)
107 if xAppEp.XAppType != sbi.PlatformType && len(xAppEp.TxMessages) > 0 && len(xAppEp.RxMessages) > 0 {
108 //xApp -> Subscription Manager
109 r.addRoute("RIC_SUB_REQ", xAppEp, subManEp, routeTable, -1)
110 r.addRoute("RIC_SUB_DEL_REQ", xAppEp, subManEp, routeTable, -1)
111 //xApp -> E2 Termination
112 r.addRoute("RIC_CONTROL_REQ", xAppEp, e2TermEp, routeTable, -1)
116 func (r *Rpe) generateSubscriptionRoutes(e2TermEp *rtmgr.Endpoint, subManEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
117 rtmgr.Logger.Debug("rpe.addSubscriptionRoutes invoked")
118 subscriptionList := &rtmgr.Subs
119 for _, subscription := range *subscriptionList {
120 rtmgr.Logger.Debug("Subscription: %v", subscription)
121 xAppUuid := subscription.Fqdn + ":" + strconv.Itoa(int(subscription.Port))
122 rtmgr.Logger.Debug("xApp UUID: %v", xAppUuid)
123 xAppEp := getEndpointByUuid(xAppUuid)
124 //Subscription Manager -> xApp
125 r.addRoute("RIC_SUB_RESP", subManEp, xAppEp, routeTable, subscription.SubID)
126 r.addRoute("RIC_SUB_FAILURE", subManEp, xAppEp, routeTable, subscription.SubID)
127 r.addRoute("RIC_SUB_DEL_RESP", subManEp, xAppEp, routeTable, subscription.SubID)
128 r.addRoute("RIC_SUB_DEL_FAILURE", subManEp, xAppEp, routeTable, subscription.SubID)
129 //E2 Termination -> xApp
130 r.addRoute("RIC_INDICATION", e2TermEp, xAppEp, routeTable, subscription.SubID)
131 r.addRoute("RIC_CONTROL_ACK", e2TermEp, xAppEp, routeTable, subscription.SubID)
132 r.addRoute("RIC_CONTROL_FAILURE", e2TermEp, xAppEp, routeTable, subscription.SubID)
136 func (r *Rpe) generatePlatformRoutes(e2TermEp *rtmgr.Endpoint, subManEp *rtmgr.Endpoint, e2ManEp *rtmgr.Endpoint, ueManEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
137 rtmgr.Logger.Debug("rpe.generatePlatformRoutes invoked")
138 //Platform Routes --- Subscription Routes
139 //Subscription Manager -> E2 Termination
140 r.addRoute("RIC_SUB_REQ", subManEp, e2TermEp, routeTable, -1)
141 r.addRoute("RIC_SUB_DEL_REQ", subManEp, e2TermEp, routeTable, -1)
142 //E2 Termination -> Subscription Manager
143 r.addRoute("RIC_SUB_RESP", e2TermEp, subManEp, routeTable, -1)
144 r.addRoute("RIC_SUB_DEL_RESP", e2TermEp, subManEp, routeTable, -1)
145 r.addRoute("RIC_SUB_FAILURE", e2TermEp, subManEp, routeTable, -1)
146 r.addRoute("RIC_SUB_DEL_FAILURE", e2TermEp, subManEp, routeTable, -1)
147 //TODO: UE Man Routes removed (since it is not existing)
148 //UE Manager -> Subscription Manager
149 //r.addRoute("RIC_SUB_REQ", ueManEp, subManEp, routeTable)
150 //r.addRoute("RIC_SUB_DEL_REQ", ueManEp, subManEp, routeTable)
151 ////UE Manager -> E2 Termination
152 //r.addRoute("RIC_CONTROL_REQ", ueManEp, e2TermEp, routeTable)
154 //Platform Routes --- X2 Routes
155 //E2 Manager -> E2 Termination
156 r.addRoute("RIC_X2_SETUP_REQ", e2ManEp, e2TermEp, routeTable, -1)
157 r.addRoute("RIC_X2_SETUP_RESP", e2ManEp, e2TermEp, routeTable, -1)
158 r.addRoute("RIC_X2_SETUP_FAILURE", e2ManEp, e2TermEp, routeTable, -1)
159 r.addRoute("RIC_X2_RESET_RESP", e2ManEp, e2TermEp, routeTable, -1)
160 r.addRoute("RIC_ENDC_X2_SETUP_REQ", e2ManEp, e2TermEp, routeTable, -1)
161 r.addRoute("RIC_ENDC_X2_SETUP_RESP", e2ManEp, e2TermEp, routeTable, -1)
162 r.addRoute("RIC_ENDC_X2_SETUP_FAILURE", e2ManEp, e2TermEp, routeTable, -1)
163 r.addRoute("RIC_SCTP_CLEAR_ALL", e2ManEp, e2TermEp, routeTable, -1)
164 //E2 Termination -> E2 Manager
165 r.addRoute("E2_TERM_INIT", e2TermEp, e2ManEp, routeTable, -1)
166 r.addRoute("RIC_X2_SETUP_REQ", e2TermEp, e2ManEp, routeTable, -1)
167 r.addRoute("RIC_X2_SETUP_RESP", e2TermEp, e2ManEp, routeTable, -1)
168 r.addRoute("RIC_X2_RESET", e2TermEp, e2ManEp, routeTable, -1)
169 r.addRoute("RIC_X2_RESOURCE_STATUS_RESPONSE", e2TermEp, e2ManEp, routeTable, -1)
170 r.addRoute("RIC_X2_RESET_RESP", e2TermEp, e2ManEp, routeTable, -1)
171 r.addRoute("RIC_ENDC_X2_SETUP_REQ", e2ManEp, e2TermEp, routeTable, -1)
172 r.addRoute("RIC_ENDC_X2_SETUP_RESP", e2ManEp, e2TermEp, routeTable, -1)
173 r.addRoute("RIC_ENDC_X2_SETUP_FAILURE", e2ManEp, e2TermEp, routeTable, -1)
174 r.addRoute("RIC_SCTP_CONNECTION_FAILURE", e2TermEp, e2ManEp, routeTable, -1)
177 func (r *Rpe) generateRouteTable(endPointList rtmgr.Endpoints) *rtmgr.RouteTable {
178 rtmgr.Logger.Debug("rpe.generateRouteTable invoked")
179 rtmgr.Logger.Debug("Endpoint List: %v", endPointList)
180 routeTable := &rtmgr.RouteTable{}
181 e2TermEp := getEndpointByName(&endPointList, "E2TERM")
183 rtmgr.Logger.Error("Platform component not found: %v", "E2 Termination")
184 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
186 subManEp := getEndpointByName(&endPointList, "SUBMAN")
188 rtmgr.Logger.Error("Platform component not found: %v", "Subscription Manager")
189 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
191 e2ManEp := getEndpointByName(&endPointList, "E2MAN")
193 rtmgr.Logger.Error("Platform component not found: %v", "E2 Manager")
194 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
196 ueManEp := getEndpointByName(&endPointList, "UEMAN")
198 rtmgr.Logger.Error("Platform component not found: %v", "UE Manger")
199 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
201 r.generatePlatformRoutes(e2TermEp, subManEp, e2ManEp, ueManEp, routeTable)
203 for _, endPoint := range endPointList {
204 rtmgr.Logger.Debug("Endpoint: %v, xAppType: %v", endPoint.Name, endPoint.XAppType)
205 if endPoint.XAppType != sbi.PlatformType && len(endPoint.TxMessages) > 0 && len(endPoint.RxMessages) > 0 {
206 r.generateXappRoutes(endPoint, e2TermEp, subManEp, routeTable)
207 r.generateSubscriptionRoutes(e2TermEp, subManEp, routeTable)