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)
113 //E2 Termination -> xApp
114 r.addRoute("RIC_CONTROL_ACK", e2TermEp, xAppEp, routeTable, -1)
115 r.addRoute("RIC_CONTROL_FAILURE", e2TermEp, xAppEp, routeTable, -1)
119 func (r *Rpe) generateSubscriptionRoutes(e2TermEp *rtmgr.Endpoint, subManEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
120 rtmgr.Logger.Debug("rpe.addSubscriptionRoutes invoked")
121 subscriptionList := &rtmgr.Subs
122 for _, subscription := range *subscriptionList {
123 rtmgr.Logger.Debug("Subscription: %v", subscription)
124 xAppUuid := subscription.Fqdn + ":" + strconv.Itoa(int(subscription.Port))
125 rtmgr.Logger.Debug("xApp UUID: %v", xAppUuid)
126 xAppEp := getEndpointByUuid(xAppUuid)
127 //Subscription Manager -> xApp
128 r.addRoute("RIC_SUB_RESP", subManEp, xAppEp, routeTable, subscription.SubID)
129 r.addRoute("RIC_SUB_FAILURE", subManEp, xAppEp, routeTable, subscription.SubID)
130 r.addRoute("RIC_SUB_DEL_RESP", subManEp, xAppEp, routeTable, subscription.SubID)
131 r.addRoute("RIC_SUB_DEL_FAILURE", subManEp, xAppEp, routeTable, subscription.SubID)
132 //E2 Termination -> xApp
133 r.addRoute("RIC_INDICATION", e2TermEp, xAppEp, routeTable, subscription.SubID)
134 r.addRoute("RIC_CONTROL_ACK", e2TermEp, xAppEp, routeTable, subscription.SubID)
135 r.addRoute("RIC_CONTROL_FAILURE", e2TermEp, xAppEp, routeTable, subscription.SubID)
139 func (r *Rpe) generatePlatformRoutes(e2TermEp *rtmgr.Endpoint, subManEp *rtmgr.Endpoint, e2ManEp *rtmgr.Endpoint, ueManEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
140 rtmgr.Logger.Debug("rpe.generatePlatformRoutes invoked")
141 //Platform Routes --- Subscription Routes
142 //Subscription Manager -> E2 Termination
143 r.addRoute("RIC_SUB_REQ", subManEp, e2TermEp, routeTable, -1)
144 r.addRoute("RIC_SUB_DEL_REQ", subManEp, e2TermEp, routeTable, -1)
145 //E2 Termination -> Subscription Manager
146 r.addRoute("RIC_SUB_RESP", e2TermEp, subManEp, routeTable, -1)
147 r.addRoute("RIC_SUB_DEL_RESP", e2TermEp, subManEp, routeTable, -1)
148 r.addRoute("RIC_SUB_FAILURE", e2TermEp, subManEp, routeTable, -1)
149 r.addRoute("RIC_SUB_DEL_FAILURE", e2TermEp, subManEp, routeTable, -1)
150 //TODO: UE Man Routes removed (since it is not existing)
151 //UE Manager -> Subscription Manager
152 //r.addRoute("RIC_SUB_REQ", ueManEp, subManEp, routeTable)
153 //r.addRoute("RIC_SUB_DEL_REQ", ueManEp, subManEp, routeTable)
154 ////UE Manager -> E2 Termination
155 //r.addRoute("RIC_CONTROL_REQ", ueManEp, e2TermEp, routeTable)
157 //Platform Routes --- X2 Routes
158 //E2 Manager -> E2 Termination
159 r.addRoute("RIC_X2_SETUP_REQ", e2ManEp, e2TermEp, routeTable, -1)
160 r.addRoute("RIC_X2_RESET_REQ", e2ManEp, e2TermEp, routeTable, -1)
161 r.addRoute("RIC_X2_RESET_RESP", e2ManEp, e2TermEp, routeTable, -1)
162 r.addRoute("RIC_ENDC_X2_SETUP_REQ", e2ManEp, e2TermEp, routeTable, -1)
163 r.addRoute("RIC_SCTP_CLEAR_ALL", e2ManEp, e2TermEp, routeTable, -1)
164 r.addRoute("RIC_ENB_CONF_UPDATE_ACK", e2ManEp, e2TermEp, routeTable, -1)
165 r.addRoute("RIC_ENB_CONF_UPDATE_FAILURE", e2ManEp, e2TermEp, routeTable, -1)
166 r.addRoute("RIC_ENDC_CONF_UPDATE_ACK", e2ManEp, e2TermEp, routeTable, -1)
167 r.addRoute("RIC_ENDC_CONF_UPDATE_FAILURE", e2ManEp, e2TermEp, routeTable, -1)
168 //E2 Termination -> E2 Manager
169 r.addRoute("E2_TERM_INIT", e2TermEp, e2ManEp, routeTable, -1)
170 r.addRoute("RIC_X2_SETUP_RESP", e2TermEp, e2ManEp, routeTable, -1)
171 r.addRoute("RIC_X2_SETUP_FAILURE", e2TermEp, e2ManEp, routeTable, -1)
172 r.addRoute("RIC_X2_RESET_REQ", e2TermEp, e2ManEp, routeTable, -1)
173 r.addRoute("RIC_X2_RESET_RESP", e2TermEp, e2ManEp, routeTable, -1)
174 r.addRoute("RIC_ENDC_X2_SETUP_RESP", e2TermEp, e2ManEp, routeTable, -1)
175 r.addRoute("RIC_ENDC_X2_SETUP_FAILURE", e2TermEp, e2ManEp, routeTable, -1)
176 r.addRoute("RIC_ENDC_CONF_UPDATE", e2TermEp, e2ManEp, routeTable, -1)
177 r.addRoute("RIC_SCTP_CONNECTION_FAILURE", e2TermEp, e2ManEp, routeTable, -1)
178 r.addRoute("RIC_ERROR_INDICATION", e2TermEp, e2ManEp, routeTable, -1)
179 r.addRoute("RIC_ENB_CONF_UPDATE", e2TermEp, e2ManEp, routeTable, -1)
180 r.addRoute("RIC_ENB_LOAD_INFORMATION", e2TermEp, e2ManEp, routeTable, -1)
183 func (r *Rpe) generateRouteTable(endPointList rtmgr.Endpoints) *rtmgr.RouteTable {
184 rtmgr.Logger.Debug("rpe.generateRouteTable invoked")
185 rtmgr.Logger.Debug("Endpoint List: %v", endPointList)
186 routeTable := &rtmgr.RouteTable{}
187 e2TermEp := getEndpointByName(&endPointList, "E2TERM")
189 rtmgr.Logger.Error("Platform component not found: %v", "E2 Termination")
190 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
192 subManEp := getEndpointByName(&endPointList, "SUBMAN")
194 rtmgr.Logger.Error("Platform component not found: %v", "Subscription Manager")
195 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
197 e2ManEp := getEndpointByName(&endPointList, "E2MAN")
199 rtmgr.Logger.Error("Platform component not found: %v", "E2 Manager")
200 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
202 ueManEp := getEndpointByName(&endPointList, "UEMAN")
204 rtmgr.Logger.Error("Platform component not found: %v", "UE Manger")
205 rtmgr.Logger.Debug("Endpoints: %v", endPointList)
207 r.generatePlatformRoutes(e2TermEp, subManEp, e2ManEp, ueManEp, routeTable)
209 for _, endPoint := range endPointList {
210 rtmgr.Logger.Debug("Endpoint: %v, xAppType: %v", endPoint.Name, endPoint.XAppType)
211 if endPoint.XAppType != sbi.PlatformType && len(endPoint.TxMessages) > 0 && len(endPoint.RxMessages) > 0 {
212 r.generateXappRoutes(endPoint, e2TermEp, subManEp, routeTable)
213 r.generateSubscriptionRoutes(e2TermEp, subManEp, routeTable)