+
+void E2APMsgHdlr(uint32_t *duId, Buffer *mBuf);
+uint8_t BuildAndSendE2SetupRsp(DuDb *duDb, uint8_t transId, E2NodeConfigList e2NodeList);
+uint8_t BuildAndSendRicSubscriptionReq(DuDb *duDb);
+uint8_t SendE2APMsg(Region region, Pool pool, uint32_t duId);
+uint8_t BuildAndSendRicServiceQuery(DuDb *duDb);
+uint8_t BuildAndSendE2NodeConfigUpdateFailure(uint32_t duId, uint8_t transId, uint8_t causeInfo, uint8_t causeReason);
+uint8_t fillE2NodeConfigAck(PTR e2NodeCfg, uint8_t procedureCode, E2NodeComponent *componentInfo, bool isSuccessful);
+E2NodeComponent *fetchE2NodeComponentInfo(DuDb *duDb, InterfaceType interfaceType,CmLList **e2ComponentNode);
+uint8_t handleE2NodeComponentAction(DuDb *duDb, PTR e2NodeCfg, uint8_t protocolId, E2NodeConfigItem *storeCfg);
+uint8_t BuildAndSendE2NodeConfigUpdateAck(DuDb *duDb, uint8_t transId, E2NodeConfigList *e2NodeList);
+uint8_t BuildAndSendConnectionUpdate(uint32_t duId);
+uint8_t BuildAndSendE2ConnectionUpdate(uint32_t duId, E2Connection connectionInfo);
+uint8_t BuildAndSendRicSubscriptionDeleteRequest(uint32_t duId, RicSubscription *ricSubsDb);
+void BuildRicSubsModificationReq(DuDb *duDb, RicSubscription *ricSubsInfo);