+ ranFuncId = ricSubsFailIe->value.choice.RANfunctionID;
+ ranFuncDb = fetchRanFuncFromRanFuncId(duDb, ranFuncId);
+ if(!ranFuncDb)
+ {
+ DU_LOG("\nERROR --> E2AP : ProcRicSubscriptionFailure : RAN Function Id [%d] not found", ranFuncId);
+ return RFAILED;
+ }
+ else
+ {
+ /* Remove subscription entry from RAN Function */
+ ricSubs = fetchSubsInfoFromRicReqId(ricReqId, ranFuncDb);
+ if(ricSubs)
+ {
+ memset(&ranFuncDb->subscriptionList[subsIdx], 0, sizeof(RicSubscription));
+ }
+ }
+ break;
+ }
+ case ProtocolIE_IDE2_id_CauseE2:
+ default:
+ /* No handling required as of now since this is a stub */
+ break;
+ }
+ }
+ }
+ }
+ }
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Free RIC Subscription Modification Refuse
+ *
+ * @details
+ *
+ * Function : FreeRicSubsModRefuse
+ *
+ * Functionality: Free RIC Subscription Modification Refuse
+ *
+ * @param E2AP Message PDU to be freed
+ * @return void
+ *
+ ******************************************************************/
+void FreeRicSubsModRefuse(E2AP_PDU_t *e2apMsg)
+{
+ uint8_t ieIdx =0;
+ RICsubscriptionModificationRefuse_t *ricSubsModRefuse = NULLP;
+
+ if(e2apMsg)
+ {
+ if(e2apMsg->choice.unsuccessfulOutcome)
+ {
+ ricSubsModRefuse = &e2apMsg->choice.unsuccessfulOutcome->value.choice.RICsubscriptionModificationRefuse;
+ if(ricSubsModRefuse->protocolIEs.list.array)
+ {
+ for(ieIdx = 0; ieIdx < ricSubsModRefuse->protocolIEs.list.count; ieIdx++)
+ {
+ RIC_FREE(ricSubsModRefuse->protocolIEs.list.array[ieIdx], sizeof(RICsubscriptionModificationRefuse_IEs_t));
+ }
+ RIC_FREE(ricSubsModRefuse->protocolIEs.list.array, ricSubsModRefuse->protocolIEs.list.size);
+ }
+ RIC_FREE(e2apMsg->choice.unsuccessfulOutcome , sizeof(UnsuccessfulOutcomeE2_t));
+ }
+ RIC_FREE(e2apMsg, sizeof(E2AP_PDU_t));
+ }
+}
+
+/*******************************************************************
+ *
+ * @brief Build And Send RIC Subscription Modification Refuse
+ *
+ * @details
+ *
+ * Function : BuildAndSendRicSubsModRefuse
+ *
+ * Functionality: Build And Send RIC Subscription Modification Refuse
+ *
+ * @param DU ID
+ * RIC Request ID of subscription
+ * RAN Function ID
+ * Type of failure
+ * Cause of failure
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+uint8_t BuildAndSendRicSubsModRefuse(uint32_t duId, RicRequestId ricReqId, uint16_t ranFuncId, CauseE2_PR causeType, \
+ uint8_t cause)
+{
+ uint8_t ieIdx = 0, elementCnt = 0;
+ uint8_t ret = RFAILED;
+ E2AP_PDU_t *e2apMsg = NULL;
+ asn_enc_rval_t encRetVal;
+ RICsubscriptionModificationRefuse_t *ricSubsModRefuse = NULLP;
+ RICsubscriptionModificationRefuse_IEs_t *ricSubsModRefuseIe = NULLP;
+
+ DU_LOG("\nINFO --> E2AP : Building RIC Subscription Modification Refuse\n");
+ while(true)
+ {
+ RIC_ALLOC(e2apMsg, sizeof(E2AP_PDU_t));
+ if(e2apMsg == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+ e2apMsg->present = E2AP_PDU_PR_unsuccessfulOutcome;
+ RIC_ALLOC(e2apMsg->choice.unsuccessfulOutcome , sizeof(UnsuccessfulOutcomeE2_t));
+ if(e2apMsg->choice.unsuccessfulOutcome == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+
+ e2apMsg->choice.unsuccessfulOutcome->procedureCode = ProcedureCodeE2_id_RICsubscriptionModificationRequired;
+ e2apMsg->choice.unsuccessfulOutcome->criticality = CriticalityE2_reject;
+ e2apMsg->choice.unsuccessfulOutcome->value.present = \
+ UnsuccessfulOutcomeE2__value_PR_RICsubscriptionModificationRefuse;
+ ricSubsModRefuse = &e2apMsg->choice.unsuccessfulOutcome->value.choice.RICsubscriptionModificationRefuse;
+
+ elementCnt = 3;
+ ricSubsModRefuse->protocolIEs.list.count = elementCnt;
+ ricSubsModRefuse->protocolIEs.list.size = elementCnt * sizeof(RICsubscriptionModificationRefuse_IEs_t *);
+ RIC_ALLOC(ricSubsModRefuse->protocolIEs.list.array, ricSubsModRefuse->protocolIEs.list.size);
+ if(!ricSubsModRefuse->protocolIEs.list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+
+ for(ieIdx = 0; ieIdx < elementCnt; ieIdx++)
+ {
+ RIC_ALLOC(ricSubsModRefuse->protocolIEs.list.array[ieIdx], sizeof(RICsubscriptionModificationRefuse_IEs_t));
+ if(!ricSubsModRefuse->protocolIEs.list.array[ieIdx])
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+ }
+
+ /* RIC Request ID */
+ ieIdx = 0;
+ ricSubsModRefuseIe = ricSubsModRefuse->protocolIEs.list.array[ieIdx];
+ ricSubsModRefuseIe->id = ProtocolIE_IDE2_id_RICrequestID;
+ ricSubsModRefuseIe->criticality = CriticalityE2_reject;
+ ricSubsModRefuseIe->value.present = RICsubscriptionModificationRefuse_IEs__value_PR_RICrequestID;
+ ricSubsModRefuseIe->value.choice.RICrequestID.ricRequestorID = ricReqId.requestorId;
+ ricSubsModRefuseIe->value.choice.RICrequestID.ricInstanceID = ricReqId.instanceId;
+
+ /* RAN Function ID */
+ ieIdx++;
+ ricSubsModRefuseIe = ricSubsModRefuse->protocolIEs.list.array[ieIdx];
+ ricSubsModRefuseIe->id = ProtocolIE_IDE2_id_RANfunctionID;
+ ricSubsModRefuseIe->criticality = CriticalityE2_reject;
+ ricSubsModRefuseIe->value.present = RICsubscriptionModificationRefuse_IEs__value_PR_RANfunctionID;
+ ricSubsModRefuseIe->value.choice.RANfunctionID = ranFuncId;
+
+ /* Cause */
+ ieIdx++;
+ ricSubsModRefuseIe = ricSubsModRefuse->protocolIEs.list.array[ieIdx];
+ ricSubsModRefuseIe->id = ProtocolIE_IDE2_id_CauseE2;
+ ricSubsModRefuseIe->criticality = CriticalityE2_reject;
+ ricSubsModRefuseIe->value.present = RICsubscriptionModificationRefuse_IEs__value_PR_CauseE2;
+ fillE2FailureCause(&ricSubsModRefuseIe->value.choice.CauseE2, causeType, cause);
+
+ xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2apMsg);
+ memset(encBuf, 0, ENC_BUF_MAX_LEN);
+ encBufSize = 0;
+ encRetVal = aper_encode(&asn_DEF_E2AP_PDU, 0, e2apMsg, PrepFinalEncBuf, encBuf);
+
+ /* Check encode results */
+ if(encRetVal.encoded == ENCODE_FAIL)
+ {
+ DU_LOG("\nERROR --> E2AP : Could not encode RIC subscription modification refuse (at %s)\n",\
+ encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+ break;
+ }
+ else
+ {
+ DU_LOG("\nDEBUG --> E2AP : Created APER encoded buffer for RIC subscription modification refuse\n");
+ for(int i=0; i< encBufSize; i++)
+ {
+ DU_LOG("%x",encBuf[i]);
+ }
+ }
+
+ if(SendE2APMsg(RIC_APP_MEM_REG, RIC_POOL, duId) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : Failed to send RIC Subscription Modification Refused");
+ break;
+ }
+
+ ret =ROK;
+ break;
+ }
+ FreeRicSubsModRefuse(e2apMsg);
+ return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Free memory for RIC Subscription Modification Confirm
+ *
+ * @details
+ *
+ * Function : FreeRicSubsModConfirm
+ *
+ * Functionality: Free memory for RIC subscription modification
+ * confirm
+ *
+ * @param E2AP Message PDU to be freed
+ * @return Void
+ *
+ ******************************************************************/
+void FreeRicSubsModConfirm(E2AP_PDU_t *e2apMsg)
+{
+ uint8_t ieIdx = 0, arrIdx=0;
+ RICsubscriptionModificationConfirm_t *ricSubsModCfm = NULLP;
+ RICsubscriptionModificationConfirm_IEs_t *ricSubsModCfmIe = NULLP;
+ RICactions_ConfirmedForModification_List_t *modCfmList = NULLP;
+ RICactions_RefusedToBeModified_List_t *modRefusedList = NULLP;
+ RICactions_ConfirmedForRemoval_List_t *rmvCfmList = NULLP;
+ RICactions_RefusedToBeRemoved_List_t *rmvFailList = NULLP;
+
+ if(e2apMsg)
+ {
+ if(e2apMsg->choice.successfulOutcome)
+ {
+ ricSubsModCfm = &e2apMsg->choice.successfulOutcome->value.choice.RICsubscriptionModificationConfirm;
+ if(ricSubsModCfm->protocolIEs.list.array)
+ {
+ for(ieIdx = 0; ieIdx < ricSubsModCfm->protocolIEs.list.count; ieIdx++)
+ {
+ if(ricSubsModCfm->protocolIEs.list.array[ieIdx])
+ {
+ ricSubsModCfmIe = ricSubsModCfm->protocolIEs.list.array[ieIdx];
+ switch(ricSubsModCfmIe->id)
+ {
+ case ProtocolIE_IDE2_id_RICactionsConfirmedForModification_List:
+ {
+ modCfmList = &ricSubsModCfmIe->value.choice.RICactions_ConfirmedForModification_List;
+ if(modCfmList->list.array)
+ {
+ for(arrIdx = 0; arrIdx < modCfmList->list.count; arrIdx++)
+ {
+ RIC_FREE(modCfmList->list.array[arrIdx], \
+ sizeof(RICaction_ConfirmedForModification_ItemIEs_t));
+ }
+ RIC_FREE(modCfmList->list.array, modCfmList->list.size);
+ }
+ break;
+ }
+
+ case ProtocolIE_IDE2_id_RICactionsRefusedToBeModified_List:
+ {
+ modRefusedList = &ricSubsModCfmIe->value.choice.RICactions_RefusedToBeModified_List;
+ if(modRefusedList->list.array)
+ {
+ for(arrIdx = 0; arrIdx < modRefusedList->list.count; arrIdx++)
+ {
+ RIC_FREE(modRefusedList->list.array[arrIdx], \
+ sizeof(RICaction_RefusedToBeModified_ItemIEs_t));
+ }
+ RIC_FREE(modRefusedList->list.array, modRefusedList->list.size);
+ }
+ break;
+ }
+
+ case ProtocolIE_IDE2_id_RICactionsConfirmedForRemoval_List:
+ {
+ rmvCfmList = &ricSubsModCfmIe->value.choice.RICactions_ConfirmedForRemoval_List;
+ if(rmvCfmList->list.array)
+ {
+ for(arrIdx = 0; arrIdx < rmvCfmList->list.count; arrIdx++)
+ {
+ RIC_FREE(rmvCfmList->list.array[arrIdx], \
+ sizeof(RICaction_ConfirmedForRemoval_ItemIEs_t));
+ }
+ RIC_FREE(rmvCfmList->list.array, rmvCfmList->list.size);
+ }
+ break;
+ }
+
+ case ProtocolIE_IDE2_id_RICactionsRefusedToBeRemoved_List:
+ {
+ rmvFailList = &ricSubsModCfmIe->value.choice.RICactions_RefusedToBeRemoved_List;
+ if(rmvFailList->list.array)
+ {
+ for(arrIdx = 0; arrIdx < rmvFailList->list.count; arrIdx++)
+ {
+ RIC_ALLOC(rmvFailList->list.array[arrIdx], \
+ sizeof(RICaction_RefusedToBeRemoved_ItemIEs_t));
+ }
+ RIC_FREE(rmvFailList->list.array, rmvFailList->list.size);
+ }
+ break;
+ }
+
+ default:
+ break;
+
+ }
+ RIC_FREE(ricSubsModCfmIe, sizeof(RICsubscriptionModificationConfirm_IEs_t));
+ }
+ }
+ RIC_FREE(ricSubsModCfm->protocolIEs.list.array, ricSubsModCfm->protocolIEs.list.size);
+ }
+ RIC_FREE(e2apMsg->choice.successfulOutcome , sizeof(SuccessfulOutcomeE2_t));
+ }
+ RIC_FREE(e2apMsg, sizeof(E2AP_PDU_t));
+ }
+}
+
+/*******************************************************************
+ *
+ * @brief Fill the list of actions confirmed for modification
+ *
+ * @details
+ *
+ * Function : fillActionModConfirmedList
+ *
+ * Functionality: Fill the list of actions confirmed for modification
+ *
+ * @param List to be filled
+ * Number of actions
+ * Source list of actions
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+uint8_t fillActionModConfirmedList(RICactions_ConfirmedForModification_List_t *modCfmList, uint8_t numActions, \
+ uint8_t *actionModifiedList)
+{
+ uint8_t arrIdx = 0;
+ RICaction_ConfirmedForModification_ItemIEs_t *modCfmListItem = NULLP;
+
+ modCfmList->list.count = numActions;
+ modCfmList->list.size = numActions * sizeof(RICaction_ConfirmedForModification_ItemIEs_t *);
+ RIC_ALLOC(modCfmList->list.array, modCfmList->list.size);
+ if(!modCfmList->list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ for(arrIdx = 0; arrIdx < modCfmList->list.count; arrIdx++)
+ {
+ RIC_ALLOC(modCfmList->list.array[arrIdx], sizeof(RICaction_ConfirmedForModification_ItemIEs_t));
+ if(!modCfmList->list.array[arrIdx])
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ modCfmListItem = (RICaction_ConfirmedForModification_ItemIEs_t *)modCfmList->list.array[arrIdx];
+ modCfmListItem->id = ProtocolIE_IDE2_id_RICaction_ConfirmedForModification_Item;
+ modCfmListItem->criticality = CriticalityE2_ignore;
+ modCfmListItem->value.present = \
+ RICaction_ConfirmedForModification_ItemIEs__value_PR_RICaction_ConfirmedForModification_Item;
+ modCfmListItem->value.choice.RICaction_ConfirmedForModification_Item.ricActionID = actionModifiedList[arrIdx];
+ }
+
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Fill the list of actions refused to be modified
+ *
+ * @details
+ *
+ * Function : fillActionModRefusedList
+ *
+ * Functionality: Fill the list of actions refused to be modified
+ *
+ * @param List to be filled
+ * Number of list
+ * Source list of actions refused tobe modified
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+uint8_t fillActionModRefusedList(RICactions_RefusedToBeModified_List_t *modRefusedList, uint8_t numActions, \
+ ActionFailed *actionModFailedList)
+{
+ uint8_t arrIdx = 0;
+ RICaction_RefusedToBeModified_ItemIEs_t *modRefusedListItem = NULLP;
+
+ modRefusedList->list.count = numActions;
+ modRefusedList->list.size = numActions * sizeof(RICaction_RefusedToBeModified_ItemIEs_t *);
+ RIC_ALLOC(modRefusedList->list.array, modRefusedList->list.size);
+ if(!modRefusedList->list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ for(arrIdx = 0; arrIdx < modRefusedList->list.count; arrIdx++)
+ {
+ RIC_ALLOC(modRefusedList->list.array[arrIdx], sizeof(RICaction_RefusedToBeModified_ItemIEs_t));
+ if(!modRefusedList->list.array[arrIdx])
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ modRefusedListItem = (RICaction_RefusedToBeModified_ItemIEs_t *)modRefusedList->list.array[arrIdx];
+ modRefusedListItem->id = ProtocolIE_IDE2_id_RICaction_RefusedToBeModified_Item;
+ modRefusedListItem->criticality = CriticalityE2_ignore;
+ modRefusedListItem->value.present = \
+ RICaction_RefusedToBeModified_ItemIEs__value_PR_RICaction_RefusedToBeModified_Item;
+ modRefusedListItem->value.choice.RICaction_RefusedToBeModified_Item.ricActionID = \
+ actionModFailedList[arrIdx].actionId;
+ fillE2FailureCause(&modRefusedListItem->value.choice.RICaction_RefusedToBeModified_Item.cause, \
+ actionModFailedList[arrIdx].failureType, actionModFailedList[arrIdx].cause);
+ }
+
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Fill the list of action confirmed for removal
+ *
+ * @details
+ *
+ * Function : fillActionRemovalConfirmedList
+ *
+ * Functionality: Fill the list of action confirmed for removal
+ *
+ * @param List to be filled
+ * Number of actions
+ * Source list of actions removed
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+uint8_t fillActionRemovalConfirmedList(RICactions_ConfirmedForRemoval_List_t *rmvCfmList, uint8_t numActions, \
+ uint8_t *actionRemovedList)
+{
+ uint8_t arrIdx = 0;
+ RICaction_ConfirmedForRemoval_ItemIEs_t *rmvCfmListItem = NULLP;
+
+ rmvCfmList->list.count = numActions;
+ rmvCfmList->list.size = numActions * sizeof(RICaction_ConfirmedForRemoval_ItemIEs_t *);
+ RIC_ALLOC(rmvCfmList->list.array, rmvCfmList->list.size);
+ if(!rmvCfmList->list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ for(arrIdx = 0; arrIdx < rmvCfmList->list.count; arrIdx++)
+ {
+ RIC_ALLOC(rmvCfmList->list.array[arrIdx], sizeof(RICaction_ConfirmedForRemoval_ItemIEs_t));
+ if(!rmvCfmList->list.array[arrIdx])
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ rmvCfmListItem = (RICaction_ConfirmedForRemoval_ItemIEs_t *)rmvCfmList->list.array[arrIdx];
+ rmvCfmListItem->id = ProtocolIE_IDE2_id_RICaction_ConfirmedForRemoval_Item;
+ rmvCfmListItem->criticality = CriticalityE2_ignore;
+ rmvCfmListItem->value.present = \
+ RICaction_ConfirmedForRemoval_ItemIEs__value_PR_RICaction_ConfirmedForRemoval_Item;
+ rmvCfmListItem->value.choice.RICaction_ConfirmedForRemoval_Item.ricActionID = actionRemovedList[arrIdx];
+ }
+
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Fill the list of actions refused to be removed
+ *
+ * @details
+ *
+ * Function : fillActionRemovalRefusedList
+ *
+ * Functionality: Fill the list of actions refused to be removed
+ *
+ * @param List to be filled
+ * Number of list
+ * Source list of actions refused to be removed
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+uint8_t fillActionRemovalRefusedList(RICactions_RefusedToBeRemoved_List_t *rmvFailList, \
+ uint8_t numActions, ActionFailed *actionRmvlFailList)
+{
+ uint8_t arrIdx = 0;
+ RICaction_RefusedToBeRemoved_ItemIEs_t *rmvFailListItem = NULLP;
+
+ rmvFailList->list.count = numActions;
+ rmvFailList->list.size = numActions * sizeof(RICaction_RefusedToBeRemoved_ItemIEs_t *);
+ RIC_ALLOC(rmvFailList->list.array, rmvFailList->list.size);
+ if(!rmvFailList->list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ for(arrIdx = 0; arrIdx < rmvFailList->list.count; arrIdx++)
+ {
+ RIC_ALLOC(rmvFailList->list.array[arrIdx], sizeof(RICaction_RefusedToBeRemoved_ItemIEs_t));
+ if(!rmvFailList->list.array[arrIdx])
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ return RFAILED;
+ }
+
+ rmvFailListItem = (RICaction_RefusedToBeRemoved_ItemIEs_t *)rmvFailList->list.array[arrIdx];
+ rmvFailListItem->id = ProtocolIE_IDE2_id_RICaction_RefusedToBeRemoved_Item;
+ rmvFailListItem->criticality = CriticalityE2_ignore;
+ rmvFailListItem->value.present = \
+ RICaction_RefusedToBeRemoved_ItemIEs__value_PR_RICaction_RefusedToBeRemoved_Item;
+ rmvFailListItem->value.choice.RICaction_RefusedToBeRemoved_Item.ricActionID = actionRmvlFailList[arrIdx].actionId;
+ fillE2FailureCause(&rmvFailListItem->value.choice.RICaction_RefusedToBeRemoved_Item.cause, \
+ actionRmvlFailList[arrIdx].failureType, actionRmvlFailList[arrIdx].cause);
+ }
+
+ return ROK;
+
+}
+
+/*******************************************************************
+ *
+ * @brief Build And Send RIC Subscription Modification Confirm
+ *
+ * @details
+ *
+ * Function : BuildAndSendRicSubsModConfirm
+ *
+ * Functionality: Build And Send RIC Subscription Modification Confirm
+ *
+ * @param DU ID
+ * RIC Request ID of subscription
+ * RAN Function ID
+ * Temporary source action list
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+uint8_t BuildAndSendRicSubsModConfirm(uint32_t duId, RicRequestId ricReqId, uint16_t ranFuncId, RicTmpActionList tmpActionList)
+{
+ uint8_t ieIdx = 0, elementCnt = 0;
+ uint8_t ret = RFAILED;
+ E2AP_PDU_t *e2apMsg = NULLP;
+ asn_enc_rval_t encRetVal;
+ RICsubscriptionModificationConfirm_t *ricSubsModCfm = NULLP;
+ RICsubscriptionModificationConfirm_IEs_t *ricSubsModCfmIe = NULLP;
+
+ DU_LOG("\nINFO --> E2AP : Building RIC Subscription Modification Confirm\n");
+ while(true)
+ {
+ RIC_ALLOC(e2apMsg, sizeof(E2AP_PDU_t));
+ if(e2apMsg == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+
+ /* Successful Outcome */
+ e2apMsg->present = E2AP_PDU_PR_successfulOutcome;
+ RIC_ALLOC(e2apMsg->choice.successfulOutcome , sizeof(SuccessfulOutcomeE2_t));
+ if(e2apMsg->choice.successfulOutcome == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+
+ e2apMsg->choice.successfulOutcome->procedureCode = ProcedureCodeE2_id_RICsubscriptionModificationRequired;
+ e2apMsg->choice.successfulOutcome->criticality = CriticalityE2_reject;
+ e2apMsg->choice.successfulOutcome->value.present = \
+ SuccessfulOutcomeE2__value_PR_RICsubscriptionModificationConfirm;
+ ricSubsModCfm = &e2apMsg->choice.successfulOutcome->value.choice.RICsubscriptionModificationConfirm;
+
+ elementCnt = 2;
+ if(tmpActionList.numActionModified)
+ elementCnt++;
+ if(tmpActionList.numActionModFailed)
+ elementCnt++;
+ if(tmpActionList.numActionRemoved)
+ elementCnt++;
+ if(tmpActionList.numActionRemovalFailed)
+ elementCnt++;
+
+ ricSubsModCfm->protocolIEs.list.count = elementCnt;
+ ricSubsModCfm->protocolIEs.list.size = elementCnt * sizeof(RICsubscriptionModificationConfirm_IEs_t *);
+ RIC_ALLOC(ricSubsModCfm->protocolIEs.list.array, ricSubsModCfm->protocolIEs.list.size);
+ if(!ricSubsModCfm->protocolIEs.list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+
+ for(ieIdx = 0; ieIdx < elementCnt; ieIdx++)
+ {
+ RIC_ALLOC(ricSubsModCfm->protocolIEs.list.array[ieIdx], sizeof(RICsubscriptionModificationConfirm_IEs_t));
+ if(!ricSubsModCfm->protocolIEs.list.array[ieIdx])
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for %s at line %d", __func__, __LINE__);
+ break;
+ }
+ }
+
+ /* RIC Request ID */
+ ieIdx = 0;
+ ricSubsModCfmIe = ricSubsModCfm->protocolIEs.list.array[ieIdx];
+ ricSubsModCfmIe->id = ProtocolIE_IDE2_id_RICrequestID;
+ ricSubsModCfmIe->criticality = CriticalityE2_reject;
+ ricSubsModCfmIe->value.present = RICsubscriptionModificationConfirm_IEs__value_PR_RICrequestID;
+ ricSubsModCfmIe->value.choice.RICrequestID.ricRequestorID = ricReqId.requestorId;
+ ricSubsModCfmIe->value.choice.RICrequestID.ricInstanceID = ricReqId.instanceId;
+
+ /* RAN Function ID */
+ ieIdx++;
+ ricSubsModCfmIe = ricSubsModCfm->protocolIEs.list.array[ieIdx];
+ ricSubsModCfmIe->id = ProtocolIE_IDE2_id_RANfunctionID;
+ ricSubsModCfmIe->criticality = CriticalityE2_reject;
+ ricSubsModCfmIe->value.present = RICsubscriptionModificationConfirm_IEs__value_PR_RANfunctionID;
+ ricSubsModCfmIe->value.choice.RANfunctionID = ranFuncId;
+
+ /* RIC Actions List confirmed for modification */
+ if(tmpActionList.numActionModified)
+ {
+ ieIdx++;
+ ricSubsModCfmIe = ricSubsModCfm->protocolIEs.list.array[ieIdx];
+ ricSubsModCfmIe->id = ProtocolIE_IDE2_id_RICactionsConfirmedForModification_List;
+ ricSubsModCfmIe->criticality = CriticalityE2_ignore;
+ ricSubsModCfmIe->value.present = \
+ RICsubscriptionModificationConfirm_IEs__value_PR_RICactions_ConfirmedForModification_List;
+ if(fillActionModConfirmedList(&ricSubsModCfmIe->value.choice.RICactions_ConfirmedForModification_List, \
+ tmpActionList.numActionModified, tmpActionList.actionModifiedList) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : %s: Failed to fill RIC Actions Confirmed for Modification List", __func__);
+ break;
+ }
+ }
+
+ /* RIC Actions List refured to be modified */
+ if(tmpActionList.numActionModFailed)
+ {
+ ieIdx++;
+ ricSubsModCfmIe = ricSubsModCfm->protocolIEs.list.array[ieIdx];
+ ricSubsModCfmIe->id = ProtocolIE_IDE2_id_RICactionsRefusedToBeModified_List;
+ ricSubsModCfmIe->criticality = CriticalityE2_ignore;
+ ricSubsModCfmIe->value.present = \
+ RICsubscriptionModificationConfirm_IEs__value_PR_RICactions_RefusedToBeModified_List;
+ if(fillActionModRefusedList(&ricSubsModCfmIe->value.choice.RICactions_RefusedToBeModified_List, \
+ tmpActionList.numActionModFailed, tmpActionList.actionModFailedList) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : %s: Failed to fill RIC Actions Refused to be Modified List", __func__);
+ break;
+ }
+ }
+
+ /* RIC Actions List confirmed for removal */
+ if(tmpActionList.numActionRemoved)
+ {
+ ieIdx++;
+ ricSubsModCfmIe = ricSubsModCfm->protocolIEs.list.array[ieIdx];
+ ricSubsModCfmIe->id = ProtocolIE_IDE2_id_RICactionsConfirmedForRemoval_List;
+ ricSubsModCfmIe->criticality = CriticalityE2_ignore;
+ ricSubsModCfmIe->value.present = \
+ RICsubscriptionModificationConfirm_IEs__value_PR_RICactions_ConfirmedForRemoval_List;
+ if(fillActionRemovalConfirmedList(&ricSubsModCfmIe->value.choice.RICactions_ConfirmedForRemoval_List, \
+ tmpActionList.numActionRemoved, tmpActionList.actionRemovedList) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : %s: Failed to fill RIC Actions Confirmed for Removal List", __func__);
+ break;
+ }
+ }
+
+ /* RIC Actions List Refused to be removed */
+ if(tmpActionList.numActionRemovalFailed)
+ {
+ ieIdx++;
+ ricSubsModCfmIe = ricSubsModCfm->protocolIEs.list.array[ieIdx];
+ ricSubsModCfmIe->id = ProtocolIE_IDE2_id_RICactionsRefusedToBeRemoved_List;
+ ricSubsModCfmIe->criticality = CriticalityE2_ignore;
+ ricSubsModCfmIe->value.present = \
+ RICsubscriptionModificationConfirm_IEs__value_PR_RICactions_RefusedToBeRemoved_List;
+ if(fillActionRemovalRefusedList(&ricSubsModCfmIe->value.choice.RICactions_RefusedToBeRemoved_List, \
+ tmpActionList.numActionRemovalFailed, tmpActionList.actionRemovalFailedList) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : %s: Failed to fill RIC Actions Failed to be Removed List", __func__);
+ break;
+ }
+ }
+
+ /* Print and encode E2AP Message PDU */
+ xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2apMsg);
+ memset(encBuf, 0, ENC_BUF_MAX_LEN);
+ encBufSize = 0;
+ encRetVal = aper_encode(&asn_DEF_E2AP_PDU, 0, e2apMsg, PrepFinalEncBuf, encBuf);
+
+ /* Check encode results */
+ if(encRetVal.encoded == ENCODE_FAIL)
+ {
+ DU_LOG("\nERROR --> E2AP : Could not encode RIC subscription modification confirm (at %s)\n",\
+ encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+ break;
+ }
+ else
+ {
+ DU_LOG("\nDEBUG --> E2AP : Created APER encoded buffer for RIC subscription modification confirm\n");
+ for(int i=0; i< encBufSize; i++)
+ {
+ DU_LOG("%x",encBuf[i]);
+ }
+ }
+
+ if(SendE2APMsg(RIC_APP_MEM_REG, RIC_POOL, duId) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : Failed to send RIC Subscription Modification Confirm");
+ break;
+ }
+
+ ret =ROK;
+ break;
+ }
+
+ FreeRicSubsModConfirm(e2apMsg);
+ return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processing of RIC Subscription Modification Required
+ *
+ * @details
+ *
+ * Function : ProcRicSubsModReqd
+ *
+ * Functionality: Processing of RIC Subscription Modification Required
+ * As of now, we do not identify any scenario where this message
+ * shall be sent by DU. Hence, bare minimum handling has been
+ * done here.
+ *
+ * @param DU ID
+ * RIC Subscription Modification Required IEs
+ * @return ROK-success
+ * RFAILED-failure
+ *
+ ******************************************************************/
+uint8_t ProcRicSubsModReqd(uint32_t duId, RICsubscriptionModificationRequired_t *ricSubsModReqd)
+{
+ uint8_t ieIdx = 0, actionIdx = 0, duIdx = 0;
+ DuDb *duDb = NULLP;
+ uint16_t ranFuncId;
+ uint16_t actionId;
+ RicRequestId ricReqId;
+ RanFunction *ranFuncDb = NULLP;
+ RicSubscription *ricSubs = NULLP;
+ ActionInfo *action = NULLP;
+ RICsubscriptionModificationRequired_IEs_t *ricSubsModReqdIe = NULLP;
+ RICactions_RequiredToBeModified_List_t *actionToBeModList = NULLP;
+ RICactions_RequiredToBeRemoved_List_t *actionToBeRmvList = NULLP;
+ RICaction_RequiredToBeModified_ItemIEs_t *actionToBeMod = NULLP;
+ RICaction_RequiredToBeRemoved_ItemIEs_t *actionToBeRmv = NULLP;
+ RicTmpActionList tmpActionList;
+
+ memset(&ricReqId, 0, sizeof(RicRequestId));
+ memset(&tmpActionList, 0, sizeof(RicTmpActionList));
+
+ SEARCH_DU_DB(duIdx, duId, duDb);
+ if(duDb == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : duDb is not present for duId %d",duId);
+ return RFAILED;
+ }
+
+ for(ieIdx = 0; ieIdx < ricSubsModReqd->protocolIEs.list.count; ieIdx++)
+ {
+ ricSubsModReqdIe = ricSubsModReqd->protocolIEs.list.array[ieIdx];
+ switch(ricSubsModReqdIe->id)
+ {
+ case ProtocolIE_IDE2_id_RICrequestID:
+ {
+ ricReqId.requestorId = ricSubsModReqdIe->value.choice.RICrequestID.ricRequestorID;
+ ricReqId.instanceId = ricSubsModReqdIe->value.choice.RICrequestID.ricInstanceID;
+ break;
+ }
+ case ProtocolIE_IDE2_id_RANfunctionID:
+ {
+ ranFuncId = ricSubsModReqdIe->value.choice.RANfunctionID;
+ ranFuncDb = fetchRanFuncFromRanFuncId(duDb, ranFuncId);
+ if(!ranFuncDb)
+ {
+ /* If RIC Subscription not found, send RIC Subscription modification refuse to DU */
+ DU_LOG("\nERROR --> E2AP : ProcRicSubsModReqd: RIC Subscription not found");
+ BuildAndSendRicSubsModRefuse(duId, ricReqId, ranFuncId, CauseE2_PR_ricRequest, \
+ CauseE2RICrequest_ran_function_id_invalid);
+ return RFAILED;
+ }
+
+ ricSubs = fetchSubsInfoFromRicReqId(ricReqId, ranFuncDb);
+ if(!ricSubs)
+ {
+ /* If RAN Function not found, send RIC Subscription modification refuse to DU */
+ DU_LOG("\nERROR --> E2AP : ProcRicSubsModReqd: RAN Function ID [%d] not found",ranFuncId);
+ BuildAndSendRicSubsModRefuse(duId, ricReqId, ranFuncId, \
+ CauseE2_PR_ricRequest, CauseE2RICrequest_request_id_unknown);
+ return RFAILED;
+ }
+ break;
+ }
+ case ProtocolIE_IDE2_id_RICactionsRequiredToBeModified_List:
+ {
+ actionToBeModList = &ricSubsModReqdIe->value.choice.RICactions_RequiredToBeModified_List;
+ for(actionIdx = 0; actionIdx < actionToBeModList->list.count; actionIdx++)
+ {
+ actionToBeMod = (RICaction_RequiredToBeModified_ItemIEs_t *)actionToBeModList->list.array[actionIdx];
+ actionId = actionToBeMod->value.choice.RICaction_RequiredToBeModified_Item.ricActionID;
+ action = fetchActionInfoFromActionId(actionId, ricSubs);
+ if(action)
+ {
+ /* No modification required as of now, hence directly adding to the list */
+ tmpActionList.actionModifiedList[tmpActionList.numActionModified++] = actionId;
+ }
+ else
+ {
+ tmpActionList.actionModFailedList[tmpActionList.numActionModFailed].actionId = actionId;
+ tmpActionList.actionModFailedList[tmpActionList.numActionModFailed].failureType = \
+ CauseE2_PR_ricRequest;
+ tmpActionList.actionModFailedList[tmpActionList.numActionModFailed].cause = \
+ CauseE2RICrequest_action_not_supported;
+ tmpActionList.numActionModFailed++;
+ }
+ }
+ break;
+ }
+ case ProtocolIE_IDE2_id_RICactionsRequiredToBeRemoved_List:
+ {
+ actionToBeRmvList = &ricSubsModReqdIe->value.choice.RICactions_RequiredToBeRemoved_List;
+ for(actionIdx = 0; actionIdx < actionToBeRmvList->list.count; actionIdx++)
+ {
+ actionToBeRmv = (RICaction_RequiredToBeRemoved_ItemIEs_t *)actionToBeRmvList->list.array[actionIdx];
+ actionId = actionToBeRmv->value.choice.RICaction_RequiredToBeRemoved_Item.ricActionID;
+ action = fetchActionInfoFromActionId(actionId, ricSubs);
+ if(action)
+ {
+ tmpActionList.actionRemovedList[tmpActionList.numActionRemoved++] = actionId;
+ memset(action, 0, sizeof(ActionInfo));
+ action->actionId = -1;
+ ricSubs->numOfActions--;
+ }
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ }
+
+ /* If none of the action modification/removal is supported,
+ * send RIC Subscription Modification Refuse
+ * Else
+ * send RIC Subscription Modification Confirm
+ */
+ if(tmpActionList.numActionModified || tmpActionList.numActionRemoved)
+ {
+ BuildAndSendRicSubsModConfirm(duId, ricReqId, ranFuncId, tmpActionList);
+ }
+ else
+ {
+ BuildAndSendRicSubsModRefuse(duId, ricReqId, ranFuncId, CauseE2_PR_ricRequest, \
+ CauseE2RICrequest_action_not_supported);
+ }
+
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Free the ErrorIndication Message
+ *
+ * @details
+ *
+ * Function : FreeRicIndication
+ *
+ * Functionality: Free the ErrorIndication Message
+ *
+ * @return void
+ *
+ *
+ ******************************************************************/
+void FreeErrorIndication(E2AP_PDU_t *e2apMsg)
+{
+ uint8_t arrIdx = 0;
+ ErrorIndicationE2_t *errorIndicationMsg= NULLP;
+
+ if(e2apMsg != NULLP)
+ {
+ if(e2apMsg->choice.initiatingMessage != NULLP)
+ {
+ errorIndicationMsg = &e2apMsg->choice.initiatingMessage->value.choice.ErrorIndicationE2;
+ if(errorIndicationMsg!= NULLP)
+ {
+ if(errorIndicationMsg->protocolIEs.list.array != NULLP)
+ {
+ for(arrIdx=0; arrIdx<errorIndicationMsg->protocolIEs.list.count; arrIdx++)
+ {
+ RIC_FREE(errorIndicationMsg->protocolIEs.list.array[arrIdx],sizeof(ErrorIndicationE2_t));
+ }
+ RIC_FREE(errorIndicationMsg->protocolIEs.list.array,errorIndicationMsg->protocolIEs.list.size);
+ }
+ }
+ RIC_FREE(e2apMsg->choice.initiatingMessage, sizeof(InitiatingMessageE2_t));
+ }
+ RIC_FREE(e2apMsg, sizeof(E2AP_PDU_t));
+ }
+}
+
+
+/*******************************************************************
+ *
+ * @brief Builds and Send the ErrorIndication Message
+ *
+ * @details
+ *
+ * Function : BuildAndSendErrorIndication
+ *
+ * Functionality:Fills the ErrorIndication Message
+ *
+ * @params[in]
+ * DU id
+ * Trans id
+ * Ric req id
+ * Ran function id
+ * Reason of failure
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+
+uint8_t BuildAndSendErrorIndication(uint32_t duId, int8_t transId, RicRequestId requestId, uint16_t ranFuncId, uint8_t reason)
+{
+ uint8_t elementCnt =0, arrIdx=0, ret = RFAILED;
+ E2AP_PDU_t *e2apMsg = NULLP;
+ ErrorIndicationE2_t *errorIndicationMsg=NULLP;
+ asn_enc_rval_t encRetVal; /* Encoder return value */
+
+ while(true)
+ {
+ DU_LOG("\nINFO --> E2AP : Building Error Indication Message\n");
+
+ RIC_ALLOC(e2apMsg, sizeof(E2AP_PDU_t));
+ if(e2apMsg == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation for E2AP-PDU failed in %s at line %d",__func__, __LINE__);
+ break;
+ }
+
+ e2apMsg->present = E2AP_PDU_PR_initiatingMessage;
+ RIC_ALLOC(e2apMsg->choice.initiatingMessage, sizeof(InitiatingMessageE2_t));
+ if(e2apMsg->choice.initiatingMessage == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation for E2AP-PDU failed in %s at line %d",__func__, __LINE__);
+ break;
+ }
+ e2apMsg->choice.initiatingMessage->procedureCode = ProcedureCodeE2_id_ErrorIndicationE2;
+ e2apMsg->choice.initiatingMessage->criticality = CriticalityE2_reject;
+ e2apMsg->choice.initiatingMessage->value.present = InitiatingMessageE2__value_PR_ErrorIndicationE2;
+
+ errorIndicationMsg = &e2apMsg->choice.initiatingMessage->value.choice.ErrorIndicationE2;
+
+ /* Element count is 2 for TransactionID/RICrequestID and Cause.
+ * If the RAN function id is present, the count will be increased.*/
+ elementCnt = 2;
+ if(ranFuncId>0)
+ elementCnt++;
+
+ errorIndicationMsg->protocolIEs.list.count = elementCnt;
+ errorIndicationMsg->protocolIEs.list.size = elementCnt * sizeof(ErrorIndicationE2_IEs_t*);
+
+ /* Initialize the E2Setup members */
+ RIC_ALLOC(errorIndicationMsg->protocolIEs.list.array, errorIndicationMsg->protocolIEs.list.size);
+ if(errorIndicationMsg->protocolIEs.list.array == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for array elements in %s at line %d",__func__, __LINE__);
+ break;
+ }
+ for(arrIdx = 0; arrIdx < elementCnt; (arrIdx)++)
+ {
+ RIC_ALLOC(errorIndicationMsg->protocolIEs.list.array[arrIdx], sizeof(ErrorIndicationE2_IEs_t));
+ if(errorIndicationMsg->protocolIEs.list.array[arrIdx] == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed for array Idx %d in %s at line %d",arrIdx,__func__, __LINE__);
+ break;
+ }
+ }
+ if(arrIdx < elementCnt)
+ break;
+
+ arrIdx = 0;
+
+ if(transId >=0 && transId<=255)
+ {
+ /* TransactionID */
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->id = ProtocolIE_IDE2_id_TransactionID;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->criticality = CriticalityE2_reject;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.present = ErrorIndicationE2_IEs__value_PR_TransactionID;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.choice.TransactionID = transId;
+ }
+ else
+ {
+ /* RICrequestID */
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->id = ProtocolIE_IDE2_id_RICrequestID;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->criticality = CriticalityE2_reject;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.present = ErrorIndicationE2_IEs__value_PR_RICrequestID;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.choice.RICrequestID.ricRequestorID = requestId.requestorId;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.choice.RICrequestID.ricInstanceID = requestId.instanceId;
+ }
+
+ if(ranFuncId>0)
+ {
+ /* RAN Function ID */
+ arrIdx++;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->id = ProtocolIE_IDE2_id_RANfunctionID;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->criticality = CriticalityE2_reject;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.present = ErrorIndicationE2_IEs__value_PR_RANfunctionID;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.choice.RANfunctionID = ranFuncId;
+ }
+
+ /* Cause */
+ arrIdx++;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->id = ProtocolIE_IDE2_id_CauseE2;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->criticality = CriticalityE2_ignore;
+ errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.present = ErrorIndicationE2_IEs__value_PR_CauseE2;
+ fillE2FailureCause(&errorIndicationMsg->protocolIEs.list.array[arrIdx]->value.choice.CauseE2, CauseE2_PR_misc, reason);
+
+
+ /* Prints the Msg formed */
+ xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2apMsg);
+ memset(encBuf, 0, ENC_BUF_MAX_LEN);
+ encBufSize = 0;
+ encRetVal = aper_encode(&asn_DEF_E2AP_PDU, 0, e2apMsg, PrepFinalEncBuf,\
+ encBuf);
+ if(encRetVal.encoded == ENCODE_FAIL)
+ {
+ DU_LOG("\nERROR --> E2AP : Could not encode Error Indication Message (at %s)\n",\
+ encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+ break;
+ }
+ else
+ {
+ DU_LOG("\nDEBUG --> E2AP : Created APER encoded buffer for Error Indication Message \n");
+#ifdef DEBUG_ASN_PRINT
+ for(int i=0; i< encBufSize; i++)
+ {
+ printf("%x",encBuf[i]);
+ }
+#endif
+ }
+
+ if(SendE2APMsg(RIC_APP_MEM_REG, RIC_POOL, duId) != ROK)
+ {
+ DU_LOG("\nINFO --> E2AP : Sending Error Indication Message");
+
+ }
+ ret = ROK;
+ break;
+ }
+ FreeErrorIndication(e2apMsg);
+ return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Deallocate the memory allocated for ResetRequest msg
+ *
+ * @details
+ *
+ * Function : FreeResetRequest
+ *
+ * Functionality:
+ * - freeing the memory allocated for ResetRequest
+ *
+ * @params[in] E2AP_PDU_t *e2apMsg
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+void FreeResetRequest(E2AP_PDU_t *e2apMsg)
+{
+ uint8_t ieIdx =0;
+ ResetRequestE2_t *resetReq = NULLP;
+
+ if(e2apMsg != NULLP)
+ {
+ if(e2apMsg->choice.initiatingMessage != NULLP)
+ {
+ resetReq = &e2apMsg->choice.initiatingMessage->value.choice.ResetRequestE2;
+ if(resetReq->protocolIEs.list.array)
+ {
+ for(ieIdx = 0; ieIdx < resetReq->protocolIEs.list.count; ieIdx++)
+ {
+ RIC_FREE(resetReq->protocolIEs.list.array[ieIdx], sizeof(ResetRequestIEs_t));
+ }
+ RIC_FREE(resetReq->protocolIEs.list.array, resetReq->protocolIEs.list.size);
+ }
+ RIC_FREE(e2apMsg->choice.initiatingMessage, sizeof(InitiatingMessageE2_t));
+ }
+ RIC_FREE(e2apMsg, sizeof(E2AP_PDU_t));
+ }
+}
+
+/*******************************************************************
+ *
+ * @brief Build and send the reset request msg
+ *
+ * @details
+ *
+ * Function : BuildAndSendResetRequest
+ *
+ * Functionality:
+ * - Buld and send the reset request msg to E2 node
+ *
+ * @params[in]
+ * DU database
+ * Type of failure
+ * Cause of failure
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildAndSendResetRequest(DuDb *duDb, CauseE2_PR causePresent, uint8_t reason)
+{
+ uint8_t ieIdx = 0, elementCnt = 0, transId = 0;
+ uint8_t ret = RFAILED;
+ E2AP_PDU_t *e2apMsg = NULLP;
+ ResetRequestE2_t *resetReq = NULLP;
+ asn_enc_rval_t encRetVal; /* Encoder return value */
+
+ DU_LOG("\nINFO --> E2AP : Building Reset Request\n");
+
+ do
+ {
+ RIC_ALLOC(e2apMsg, sizeof(E2AP_PDU_t));
+ if(e2apMsg == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : BuildAndSendResetRequest(): Memory allocation for E2AP-PDU failed");
+ break;
+ }
+
+ e2apMsg->present = E2AP_PDU_PR_initiatingMessage;
+ RIC_ALLOC(e2apMsg->choice.initiatingMessage, sizeof(InitiatingMessageE2_t));
+ if(e2apMsg->choice.initiatingMessage == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : BuildAndSendResetRequest(): Memory allocation for initiatingMessage");
+ break;
+ }
+
+ e2apMsg->choice.initiatingMessage->procedureCode = ProcedureCodeE2_id_Reset;
+ e2apMsg->choice.initiatingMessage->criticality = CriticalityE2_reject;
+ e2apMsg->choice.initiatingMessage->value.present = InitiatingMessageE2__value_PR_ResetRequestE2;
+ resetReq = &e2apMsg->choice.initiatingMessage->value.choice.ResetRequestE2;
+
+ elementCnt = 2;
+ resetReq->protocolIEs.list.count = elementCnt;
+ resetReq->protocolIEs.list.size = elementCnt * sizeof(ResetRequestIEs_t *);
+
+ RIC_ALLOC(resetReq->protocolIEs.list.array, resetReq->protocolIEs.list.size);
+ if(!resetReq->protocolIEs.list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : BuildAndSendResetRequest(): Memory allocation failed for \
+ Reset Request IE array");
+ break;
+ }
+
+ for(ieIdx = 0; ieIdx < elementCnt; ieIdx++)
+ {
+ RIC_ALLOC(resetReq->protocolIEs.list.array[ieIdx], sizeof(ResetRequestIEs_t));
+ if(!resetReq->protocolIEs.list.array[ieIdx])
+ {
+ DU_LOG("\nERROR --> E2AP : BuildAndSendResetRequest(): Memory allocation failed for \
+ Reset Request IE array element");
+ break;
+ }
+ }
+
+ /* In case of failure */
+ if(ieIdx < elementCnt)
+ break;
+
+ ieIdx = 0;
+ resetReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_IDE2_id_TransactionID;
+ resetReq->protocolIEs.list.array[ieIdx]->criticality = CriticalityE2_reject;
+ resetReq->protocolIEs.list.array[ieIdx]->value.present = ResetRequestIEs__value_PR_TransactionID;
+ transId = assignTransactionId(duDb);
+ resetReq->protocolIEs.list.array[ieIdx]->value.choice.TransactionID = transId;
+
+ ieIdx++;
+ resetReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_IDE2_id_CauseE2;
+ resetReq->protocolIEs.list.array[ieIdx]->criticality = CriticalityE2_ignore;
+ resetReq->protocolIEs.list.array[ieIdx]->value.present = ResetRequestIEs__value_PR_CauseE2;
+ fillE2FailureCause(&resetReq->protocolIEs.list.array[ieIdx]->value.choice.CauseE2, causePresent, reason);
+
+ /* Prints the Msg formed */
+ xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2apMsg);
+
+ memset(encBuf, 0, ENC_BUF_MAX_LEN);
+ encBufSize = 0;
+ encRetVal = aper_encode(&asn_DEF_E2AP_PDU, 0, e2apMsg, PrepFinalEncBuf,\
+ encBuf);
+ if(encRetVal.encoded == ENCODE_FAIL)
+ {
+ DU_LOG("\nERROR --> E2AP : Could not encode reset request structure (at %s)\n",\
+ encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+ break;
+ }
+ else
+ {
+ DU_LOG("\nDEBUG --> E2AP : Created APER encoded buffer for reset request\n");
+#ifdef DEBUG_ASN_PRINT
+ for(int i=0; i< encBufSize; i++)
+ {
+ printf("%x",encBuf[i]);
+ }
+#endif
+ }
+ if(SendE2APMsg(RIC_APP_MEM_REG, RIC_POOL, duDb->duId) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : Sending reset request failed");
+ break;
+ }
+
+
+ ret = ROK;
+ break;
+ }while(true);
+
+ /* Free all memory */
+ FreeResetRequest(e2apMsg);
+ return ret;
+}
+
+
+/*******************************************************************
+ *
+ * @brief delete ric subscription information
+ *
+ * @details
+ *
+ * Function : deleteRicSubscription
+ *
+ * Functionality: Process ric subscription information
+ *
+ * @params[in]
+ * Pointer to DU database
+ * @return void
+
+ *
+ ******************************************************************/
+void deleteRicSubscription(DuDb **duDb)
+{
+ RanFunction *ranFuncDb = NULLP;
+ uint16_t ranFuncIdx=0;
+
+ for(ranFuncIdx =0; ranFuncIdx<MAX_RAN_FUNCTION; ranFuncIdx++)
+ {
+ ranFuncDb = &(*duDb)->ranFunction[ranFuncIdx];
+ if(ranFuncDb->id > 0)
+ {
+ memset(&ranFuncDb->subscriptionList, 0,MAX_RIC_REQUEST*sizeof(RicSubscription));
+ ranFuncDb->numOfSubscription =0;
+ }
+ }
+}
+
+/*******************************************************************
+ *
+ * @brief process the E2 Reset Response
+ *
+ * @details
+ *
+ * Function : ProcResetResponse
+ *
+ * Functionality: Process E2 Reset Response
+ *
+ * @params[in]
+ * du Id
+ * Pointer to reset response
+ * @return void
+ *
+ ******************************************************************/
+
+void ProcResetResponse(uint32_t duId, ResetResponseE2_t *resetRsp)
+{
+ uint8_t ieIdx = 0, duIdx =0;
+ DuDb *duDb = NULLP;
+
+ SEARCH_DU_DB(duIdx, duId, duDb);
+ if(duDb == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : duDb is not present for duId %d",duId);
+ return;
+ }
+
+ if(!resetRsp)
+ {
+ DU_LOG("\nERROR --> E2AP : resetRsp pointer is null");
+ return;
+ }
+
+ if(!resetRsp->protocolIEs.list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : resetRsp array pointer is null");
+ return;
+ }
+
+ for(ieIdx=0; ieIdx < resetRsp->protocolIEs.list.count; ieIdx++)
+ {
+ if(resetRsp->protocolIEs.list.array[ieIdx])
+ {
+ switch(resetRsp->protocolIEs.list.array[ieIdx]->id)
+ {
+ case ProtocolIE_IDE2_id_TransactionID:
+ {
+ deleteRicSubscription(&duDb);
+ break;
+ }
+ case ProtocolIE_IDE2_id_CriticalityDiagnosticsE2:
+ {
+ break;
+ }
+ }
+ }
+ }
+}
+
+
+/*******************************************************************
+ *
+ * @brief process the E2 Reset Request
+ *
+ * @details
+ *
+ * Function : ProcResetRequest
+ *
+ * Functionality: Process E2 Reset Request
+ *
+ * @params[in]
+ * du Id
+ * Pointer to reset response
+ * @return void
+ *
+ ******************************************************************/
+
+void ProcResetRequest(uint32_t duId, ResetRequestE2_t *resetReq)
+{
+ uint8_t ieIdx = 0, duIdx =0, transId=0;
+ DuDb *duDb = NULLP;
+
+ SEARCH_DU_DB(duIdx, duId, duDb);
+ if(duDb == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : duDb is not present for duId %d",duId);
+ return;
+ }
+
+ if(!resetReq)
+ {
+ DU_LOG("\nERROR --> E2AP : resetReq pointer is null");
+ return;
+ }
+
+ if(!resetReq->protocolIEs.list.array)
+ {
+ DU_LOG("\nERROR --> E2AP : resetReq array pointer is null");
+ return;
+ }
+
+ for(ieIdx=0; ieIdx < resetReq->protocolIEs.list.count; ieIdx++)
+ {
+ if(resetReq->protocolIEs.list.array[ieIdx])
+ {
+ switch(resetReq->protocolIEs.list.array[ieIdx]->id)
+ {
+ case ProtocolIE_IDE2_id_TransactionID:
+ {
+ transId = resetReq->protocolIEs.list.array[ieIdx]->value.choice.TransactionID;
+ break;
+ }
+ case ProtocolIE_IDE2_id_CauseE2:
+ {
+ deleteRicSubscription(&duDb);
+ break;
+ }
+ }
+ }
+ }
+
+ if(BuildAndSendResetResponse(duId, transId) !=ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : Failed to build and send reset response");
+ }
+}
+/*******************************************************************
+*
+* @brief Handles received E2AP message and sends back response
+*
+* @details
+*
+* Function : E2APMsgHdlr
+*
+* Functionality:
+* - Decodes received E2AP control message
+* - Prepares response message, encodes and sends to SCTP
+*
+* @params[in]
+* @return ROK - success
+* RFAILED - failure
+*
+* ****************************************************************/
+void E2APMsgHdlr(uint32_t *duId, Buffer *mBuf)
+{
+ int i;
+ char *recvBuf;
+ MsgLen copyCnt;
+ MsgLen recvBufLen;
+ E2AP_PDU_t *e2apMsg;
+ asn_dec_rval_t rval; /* Decoder return value */
+ E2AP_PDU_t e2apasnmsg ;
+
+ DU_LOG("\nINFO --> E2AP : Received E2AP message buffer");
+ ODU_PRINT_MSG(mBuf, 0,0);
+
+ /* Copy mBuf into char array to decode it */
+ ODU_GET_MSG_LEN(mBuf, &recvBufLen);
+ RIC_ALLOC(recvBuf, (Size)recvBufLen);
+
+ if(recvBuf == NULLP)
+ {
+ DU_LOG("\nERROR --> E2AP : Memory allocation failed");
+ return;
+ }
+ if(ODU_COPY_MSG_TO_FIX_BUF(mBuf, 0, recvBufLen, (Data *)recvBuf, ©Cnt) != ROK)
+ {
+ DU_LOG("\nERROR --> E2AP : Failed while copying %d", copyCnt);
+ return;
+ }
+
+ DU_LOG("\nDEBUG --> E2AP : Received flat buffer to be decoded : ");
+ for(i=0; i< recvBufLen; i++)
+ {
+ DU_LOG("%x",recvBuf[i]);
+ }
+
+ /* Decoding flat buffer into E2AP messsage */
+ e2apMsg = &e2apasnmsg;
+ memset(e2apMsg, 0, sizeof(E2AP_PDU_t));
+
+ rval = aper_decode(0, &asn_DEF_E2AP_PDU, (void **)&e2apMsg, recvBuf, recvBufLen, 0, 0);
+ RIC_FREE(recvBuf, (Size)recvBufLen);
+
+ if(rval.code == RC_FAIL || rval.code == RC_WMORE)
+ {
+ DU_LOG("\nERROR --> E2AP : ASN decode failed");
+ return;
+ }
+ DU_LOG("\n");
+ xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2apMsg);
+
+ switch(e2apMsg->present)
+ {
+ case E2AP_PDU_PR_initiatingMessage:
+ {
+ switch(e2apMsg->choice.initiatingMessage->value.present)
+ {
+ case InitiatingMessageE2__value_PR_E2setupRequest:
+ {
+ DU_LOG("\nINFO --> E2AP : E2 setup request received");
+ ProcE2SetupReq(duId, &e2apMsg->choice.initiatingMessage->value.choice.E2setupRequest);
+ break;
+ }
+ case InitiatingMessageE2__value_PR_E2nodeConfigurationUpdate:
+ {
+ DU_LOG("\nINFO --> E2AP : E2 node config update received");
+ ProcE2NodeConfigUpdate(*duId, &e2apMsg->choice.initiatingMessage->value.choice.E2nodeConfigurationUpdate);
+ break;
+ }
+ case InitiatingMessageE2__value_PR_ResetRequestE2: