--- /dev/null
+//
+// Copyright 2019 AT&T Intellectual Property
+// Copyright 2019 Nokia
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package handlers
+
+// #cgo CFLAGS: -I../asn1codec/inc/ -I../asn1codec/e2ap_engine/
+// #cgo LDFLAGS: -L ../asn1codec/lib/ -L../asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
+// #include <asn1codec_utils.h>
+// #include <x2setup_response_wrapper.h>
+import "C"
+import (
+ "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
+ "e2mgr/logger"
+ "fmt"
+ "github.com/pkg/errors"
+ "unsafe"
+)
+
+const (
+ maxnoofMBSFN = 8
+ maxnoofBPLMNs = 6
+ maxCellineNB = 256
+ maxnoofMBMSServiceAreaIdentities = 256
+ maxnoofBands = 16
+ maxPools = 16
+ maxnoofNeighbours = 512
+)
+
+
+// The following are possible values of a choice field, find which the pdu contains.
+func getENB_ID_choice(eNB_ID C.ENB_ID_t) (entities.EnbType, []byte) {
+
+ enbIdAsBitString := (*C.BIT_STRING_t)(unsafe.Pointer(&eNB_ID.choice[0]))
+ switch eNB_ID.present{
+ case C.ENB_ID_PR_macro_eNB_ID:
+ return entities.EnbType_MACRO_ENB, C.GoBytes(unsafe.Pointer(enbIdAsBitString.buf), C.int(enbIdAsBitString.size))
+ case C.ENB_ID_PR_home_eNB_ID:
+ return entities.EnbType_HOME_ENB, C.GoBytes(unsafe.Pointer(enbIdAsBitString.buf), C.int(enbIdAsBitString.size))
+ case C.ENB_ID_PR_short_Macro_eNB_ID:
+ return entities.EnbType_SHORT_MACRO_ENB, C.GoBytes(unsafe.Pointer(enbIdAsBitString.buf), C.int(enbIdAsBitString.size))
+ case C.ENB_ID_PR_long_Macro_eNB_ID:
+ return entities.EnbType_LONG_MACRO_ENB, C.GoBytes(unsafe.Pointer(enbIdAsBitString.buf), C.int(enbIdAsBitString.size))
+ }
+
+ return entities.EnbType_UNKNOWN_ENB_TYPE, nil
+}
+
+func getFDDInfo(fdd *C.FDD_Info_t) (*entities.FddInfo, error) {
+ var fddInfo *entities.FddInfo
+
+ if fdd != nil {
+ fddInfo = &entities.FddInfo{UlearFcn: uint32(fdd.uL_EARFCN)}
+ fddInfo.DlearFcn = uint32(fdd.dL_EARFCN)
+ fddInfo.UlTransmissionBandwidth = entities.TransmissionBandwidth(1 + fdd.uL_Transmission_Bandwidth)
+ fddInfo.DlTransmissionBandwidth = entities.TransmissionBandwidth(1 + fdd.dL_Transmission_Bandwidth)
+
+ extIEs := (*C.ProtocolExtensionContainer_170P145_t)(unsafe.Pointer(fdd.iE_Extensions))
+ if extIEs != nil && extIEs.list.count > 0 {
+ count:= int(extIEs.list.count)
+ extIEs_slice := (*[1 << 30]*C.FDD_Info_ExtIEs_t)(unsafe.Pointer(extIEs.list.array))[:count:count]
+ for _, member := range extIEs_slice {
+ switch member.extensionValue.present {
+ case C.FDD_Info_ExtIEs__extensionValue_PR_EARFCNExtension:
+ eARFCNExtension := (*C.EARFCNExtension_t)(unsafe.Pointer(&member.extensionValue.choice[0]))
+ if member.id == C.ProtocolIE_ID_id_UL_EARFCNExtension {
+ fddInfo.UlearFcn = uint32(*eARFCNExtension)
+ }
+ if member.id == C.ProtocolIE_ID_id_DL_EARFCNExtension {
+ fddInfo.DlearFcn = uint32(*eARFCNExtension)
+ }
+ case C.FDD_Info_ExtIEs__extensionValue_PR_OffsetOfNbiotChannelNumberToEARFCN:
+ /*ignored*/
+ case C.FDD_Info_ExtIEs__extensionValue_PR_NRS_NSSS_PowerOffset:
+ /*ignored*/
+ case C.FDD_Info_ExtIEs__extensionValue_PR_NSSS_NumOccasionDifferentPrecoder:
+ /*ignored*/
+ }
+ }
+ }
+ }
+
+ return fddInfo, nil
+}
+
+func getSpecialSubframeInfo(info C.SpecialSubframe_Info_t) *entities.SpecialSubframeInfo {
+ specialSubframeInfo := entities.SpecialSubframeInfo{}
+
+ specialSubframeInfo.SpecialSubframePatterns = entities.SpecialSubframe_Patterns(1 + info.specialSubframePatterns)
+ specialSubframeInfo.CyclicPrefixDl = entities.CyclicPrefix(1 + info.cyclicPrefixDL)
+ specialSubframeInfo.CyclicPrefixUl = entities.CyclicPrefix(1 + info.cyclicPrefixUL)
+
+ return &specialSubframeInfo
+}
+
+func getAdditionalSpecialSubframeInfo(info *C.AdditionalSpecialSubframe_Info_t) *entities.AdditionalSpecialSubframeInfo {
+ additionalSpecialSubframeInfo := &entities.AdditionalSpecialSubframeInfo{AdditionalSpecialSubframePatterns: entities.AdditionalSpecialSubframe_Patterns(1 + info.additionalspecialSubframePatterns)}
+
+ additionalSpecialSubframeInfo.CyclicPrefixDl = entities.CyclicPrefix(1 + info.cyclicPrefixDL)
+ additionalSpecialSubframeInfo.CyclicPrefixUl = entities.CyclicPrefix(1 + info.cyclicPrefixUL)
+
+ return additionalSpecialSubframeInfo
+}
+
+func getAdditionalSpecialSubframeExtensionInfo(info *C.AdditionalSpecialSubframeExtension_Info_t) *entities.AdditionalSpecialSubframeExtensionInfo {
+ additionalSpecialSubframeExtensionInfo := &entities.AdditionalSpecialSubframeExtensionInfo{AdditionalSpecialSubframePatternsExtension: entities.AdditionalSpecialSubframePatterns_Extension(1 +info.additionalspecialSubframePatternsExtension)}
+
+ additionalSpecialSubframeExtensionInfo.CyclicPrefixDl = entities.CyclicPrefix(1 + info.cyclicPrefixDL)
+ additionalSpecialSubframeExtensionInfo.CyclicPrefixUl = entities.CyclicPrefix(1 + info.cyclicPrefixUL)
+
+ return additionalSpecialSubframeExtensionInfo
+}
+
+func getTDDInfo(tdd *C.TDD_Info_t) (*entities.TddInfo, error) {
+ var tddInfo *entities.TddInfo
+
+ if tdd != nil {
+ tddInfo = &entities.TddInfo{EarFcn: uint32(tdd.eARFCN)}
+ tddInfo.TransmissionBandwidth = entities.TransmissionBandwidth(1 + tdd.transmission_Bandwidth)
+ tddInfo.SubframeAssignment = entities.SubframeAssignment(1 + tdd.subframeAssignment)
+
+ tddInfo.SpecialSubframeInfo = getSpecialSubframeInfo(tdd.specialSubframe_Info)
+
+ extIEs := (*C.ProtocolExtensionContainer_170P206_t)(unsafe.Pointer(tdd.iE_Extensions))
+ if extIEs != nil && extIEs.list.count > 0 {
+ count:= int(extIEs.list.count)
+ extIEs_slice := (*[1 << 30]*C.TDD_Info_ExtIEs_t)(unsafe.Pointer(extIEs.list.array))[:count:count]
+ for _, member := range extIEs_slice {
+ switch member.extensionValue.present {
+ case C.TDD_Info_ExtIEs__extensionValue_PR_AdditionalSpecialSubframe_Info:
+ tddInfo.AdditionalSpecialSubframeInfo = getAdditionalSpecialSubframeInfo((*C.AdditionalSpecialSubframe_Info_t)(unsafe.Pointer(&member.extensionValue.choice[0])))
+ case C.TDD_Info_ExtIEs__extensionValue_PR_EARFCNExtension:
+ tddInfo.EarFcn = uint32(*(*C.EARFCNExtension_t)(unsafe.Pointer(&member.extensionValue.choice[0])))
+ case C.TDD_Info_ExtIEs__extensionValue_PR_AdditionalSpecialSubframeExtension_Info:
+ tddInfo.AdditionalSpecialSubframeExtensionInfo = getAdditionalSpecialSubframeExtensionInfo((*C.AdditionalSpecialSubframeExtension_Info_t)(unsafe.Pointer(&member.extensionValue.choice[0])))
+ }
+ }
+ }
+ }
+
+ return tddInfo, nil
+}
+
+// The following are possible values of a choice field, find which the pdu contains.
+func getSubframeAllocation_choice(subframeAllocation C.SubframeAllocation_t) (entities.SubframeAllocationType, string, error) {
+
+ switch subframeAllocation.present {
+ case C.SubframeAllocation_PR_oneframe:
+ frameAllocation := (*C.Oneframe_t)(unsafe.Pointer(&subframeAllocation.choice[0]))
+ return entities.SubframeAllocationType_ONE_FRAME, fmt.Sprintf("%02x", C.GoBytes(unsafe.Pointer(frameAllocation.buf), C.int(frameAllocation.size))), nil
+ case C.SubframeAllocation_PR_fourframes:
+ frameAllocation := (*C.Fourframes_t)(unsafe.Pointer(&subframeAllocation.choice[0]))
+ return entities.SubframeAllocationType_FOUR_FRAME, fmt.Sprintf("%02x", C.GoBytes(unsafe.Pointer(frameAllocation.buf), C.int(frameAllocation.size))), nil
+ }
+ return entities.SubframeAllocationType_UNKNOWN_SUBFRAME_ALLOCATION_TYPE, "", errors.Errorf("unexpected subframe allocation choice")
+}
+
+func getMBSFN_Subframe_Infolist(mBSFN_Subframe_Infolist *C.MBSFN_Subframe_Infolist_t) ([]*entities.MbsfnSubframe, error) {
+ var mBSFNSubframes []*entities.MbsfnSubframe
+
+ if mBSFN_Subframe_Infolist.list.count > 0 && mBSFN_Subframe_Infolist.list.count <= maxnoofMBSFN {
+ count:=int(mBSFN_Subframe_Infolist.list.count)
+ BSFN_Subframe_Infolist_slice := (*[1 << 30]*C.MBSFN_Subframe_Info_t)(unsafe.Pointer(mBSFN_Subframe_Infolist.list.array))[:count:count]
+ for _, member := range BSFN_Subframe_Infolist_slice {
+ mBSFNSubframe := &entities.MbsfnSubframe{RadioframeAllocationPeriod: entities.RadioframeAllocationPeriod(1 + member.radioframeAllocationPeriod)}
+
+ mBSFNSubframe.RadioframeAllocationOffset = uint32(member.radioframeAllocationOffset)
+
+ allocType, subframeAllocation, err:= getSubframeAllocation_choice(member.subframeAllocation)
+ if err != nil {
+ return nil, err
+ }
+ mBSFNSubframe.SubframeAllocation = subframeAllocation
+ mBSFNSubframe.SubframeAllocationType = allocType
+
+ mBSFNSubframes = append(mBSFNSubframes, mBSFNSubframe)
+ }
+ }
+
+ return mBSFNSubframes, nil
+}
+
+func getPRACHConfiguration(prachConf *C.PRACH_Configuration_t) *entities.PrachConfiguration {
+
+ var prachConfiguration *entities.PrachConfiguration
+
+ prachConfiguration = &entities.PrachConfiguration{RootSequenceIndex: uint32(prachConf.rootSequenceIndex)}
+ prachConfiguration.ZeroCorrelationZoneConfiguration = uint32(prachConf.zeroCorrelationIndex)
+ prachConfiguration.HighSpeedFlag = prachConf.highSpeedFlag != 0
+ prachConfiguration.PrachFrequencyOffset = uint32(prachConf.prach_FreqOffset)
+ if prachConf.prach_ConfigIndex != nil {
+ prachConfiguration.PrachConfigurationIndex = uint32(*prachConf.prach_ConfigIndex)
+ }
+
+ return prachConfiguration
+}
+func getServedCellsInfoExt(extIEs *C.ProtocolExtensionContainer_170P192_t, servedCellInfo *entities.ServedCellInfo) error {
+
+ if extIEs != nil && extIEs.list.count > 0 {
+ count:=int(extIEs.list.count)
+ extIEs_slice := (*[1 << 30]*C.ServedCell_Information_ExtIEs_t)(unsafe.Pointer(extIEs.list.array))[:count:count]
+ for _, member := range extIEs_slice {
+ switch member.extensionValue.present {
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_Number_of_Antennaports:
+ ports := (*C.Number_of_Antennaports_t)(unsafe.Pointer(&member.extensionValue.choice[0]))
+ servedCellInfo.NumberOfAntennaPorts = entities.NumberOfAntennaPorts(1 + *ports)
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_PRACH_Configuration:
+ prachConfiguration:= getPRACHConfiguration((*C.PRACH_Configuration_t)(unsafe.Pointer(&member.extensionValue.choice[0])))
+ servedCellInfo.PrachConfiguration = prachConfiguration
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_MBSFN_Subframe_Infolist:
+ mBSFN_Subframe_Infolist, err := getMBSFN_Subframe_Infolist((*C.MBSFN_Subframe_Infolist_t)(unsafe.Pointer(&member.extensionValue.choice[0])))
+ if err != nil {
+ return err
+ }
+ servedCellInfo.MbsfnSubframeInfos = mBSFN_Subframe_Infolist
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_CSG_Id:
+ csgId := (*C.CSG_Id_t)(unsafe.Pointer(&member.extensionValue.choice[0]))
+ servedCellInfo.CsgId = fmt.Sprintf("%02x", C.GoBytes(unsafe.Pointer(csgId.buf), C.int(csgId.size)))
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_MBMS_Service_Area_Identity_List:
+ mBMS_Service_Area_Identity_List := (*C.MBMS_Service_Area_Identity_List_t)(unsafe.Pointer(&member.extensionValue.choice[0]))
+ if mBMS_Service_Area_Identity_List.list.count > 0 && mBMS_Service_Area_Identity_List.list.count < maxnoofMBMSServiceAreaIdentities {
+ count:= int(mBMS_Service_Area_Identity_List.list.count)
+ mBMS_Service_Area_Identity_List_slice := (*[1 << 30]*C.MBMS_Service_Area_Identity_t)(unsafe.Pointer(mBMS_Service_Area_Identity_List.list.array))[:count:count]
+ for _, identity := range mBMS_Service_Area_Identity_List_slice {
+ servedCellInfo.MbmsServiceAreaIdentities = append(servedCellInfo.MbmsServiceAreaIdentities, fmt.Sprintf("%02x",C.GoBytes(unsafe.Pointer(identity.buf), C.int(identity.size))))
+ }
+ }
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_MultibandInfoList:
+ multibandInfoList := (*C.MultibandInfoList_t)(unsafe.Pointer(&member.extensionValue.choice[0]))
+ if multibandInfoList.list.count > 0 && multibandInfoList.list.count < maxnoofBands {
+ count:= int(multibandInfoList.list.count)
+ multibandInfoList_slice := (*[1 << 30]*C.BandInfo_t)(unsafe.Pointer(multibandInfoList.list.array))[:count:count]
+ for _, bandInfo := range multibandInfoList_slice {
+ servedCellInfo.MultibandInfos = append(servedCellInfo.MultibandInfos, uint32(bandInfo.freqBandIndicator))
+ }
+ }
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_FreqBandIndicatorPriority:
+ priority := (*C.FreqBandIndicatorPriority_t)(unsafe.Pointer(&member.extensionValue.choice[0]))
+ servedCellInfo.FreqBandIndicatorPriority = entities.FreqBandIndicatorPriority(1 + *priority)
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_BandwidthReducedSI:
+ si := (*C.BandwidthReducedSI_t)(unsafe.Pointer(&member.extensionValue.choice[0]))
+ servedCellInfo.BandwidthReducedSi = entities.BandwidthReducedSI(1 + *si)
+ case C.ServedCell_Information_ExtIEs__extensionValue_PR_ProtectedEUTRAResourceIndication:
+ /*ignored*/
+
+ }
+
+ }
+
+ }
+
+ return nil
+}
+
+func getServedCellsNeighbour_Info(neighbour_Information*C.Neighbour_Information_t) ([]*entities.NeighbourInformation, error) {
+ var neighbours []*entities.NeighbourInformation
+
+ if neighbour_Information != nil && neighbour_Information.list.count > 0 && neighbour_Information.list.count <= maxnoofNeighbours {
+ count:= int(neighbour_Information.list.count)
+ neighbour_Information_slice := (*[1 << 30]*C.Neighbour_Information__Member)(unsafe.Pointer(neighbour_Information.list.array))[:count:count]
+ for _, member := range neighbour_Information_slice {
+
+ //pLMN_Identity:eUTRANcellIdentifier
+ plmnId := C.GoBytes(unsafe.Pointer(member.eCGI.pLMN_Identity.buf), C.int(member.eCGI.pLMN_Identity.size))
+ eUTRANcellIdentifier := C.GoBytes(unsafe.Pointer(member.eCGI.eUTRANcellIdentifier.buf), C.int(member.eCGI.eUTRANcellIdentifier.size))
+ neighbourInfo := &entities.NeighbourInformation{Ecgi: fmt.Sprintf("%02x:%02x", plmnId, eUTRANcellIdentifier)}
+
+ neighbourInfo.Pci = uint32(member.pCI)
+
+ neighbourInfo.EarFcn = uint32(member.eARFCN)
+
+ extIEs:= (*C.ProtocolExtensionContainer_170P172_t)(unsafe.Pointer(member.iE_Extensions))
+ if extIEs != nil && extIEs.list.count > 0 {
+ count:= int(extIEs.list.count)
+ neighbour_Information_ExtIEs_slice := (*[1 << 30]*C.Neighbour_Information_ExtIEs_t)(unsafe.Pointer(extIEs.list.array))[:count:count]
+ for _, neighbour_Information_ExtIE := range neighbour_Information_ExtIEs_slice {
+ switch neighbour_Information_ExtIE.extensionValue.present {
+ case C.Neighbour_Information_ExtIEs__extensionValue_PR_TAC:
+ tac := (*C.TAC_t)(unsafe.Pointer(&neighbour_Information_ExtIE.extensionValue.choice[0]))
+ neighbourInfo.Tac = fmt.Sprintf("%02x", C.GoBytes(unsafe.Pointer(tac.buf), C.int(tac.size)))
+ case C.Neighbour_Information_ExtIEs__extensionValue_PR_EARFCNExtension:
+ earFcn := (*C.EARFCNExtension_t)(unsafe.Pointer(&neighbour_Information_ExtIE.extensionValue.choice[0]))
+ neighbourInfo.EarFcn = uint32(*earFcn)
+ }
+ }
+ }
+
+ neighbours = append(neighbours,neighbourInfo)
+ }
+ }
+
+ return neighbours, nil
+}
+
+func getServedCells(servedCellsIE *C.ServedCells_t) ([]*entities.ServedCellInfo, error) {
+ var servedCells []*entities.ServedCellInfo
+
+ if servedCellsIE != nil && servedCellsIE.list.count > 0 && servedCellsIE.list.count < maxCellineNB {
+ count:= int(servedCellsIE.list.count)
+ servedCells__Member_slice := (*[1 << 30]*C.ServedCells__Member)(unsafe.Pointer(servedCellsIE.list.array))[:count:count]
+ for _, member := range servedCells__Member_slice {
+ servedCellInfo := &entities.ServedCellInfo{Pci: uint32(member.servedCellInfo.pCI)}
+
+ //pLMN_Identity:eUTRANcellIdentifier
+ plmnId := C.GoBytes(unsafe.Pointer(member.servedCellInfo.cellId.pLMN_Identity.buf), C.int(member.servedCellInfo.cellId.pLMN_Identity.size))
+ eUTRANcellIdentifier := C.GoBytes(unsafe.Pointer(member.servedCellInfo.cellId.eUTRANcellIdentifier.buf), C.int(member.servedCellInfo.cellId.eUTRANcellIdentifier.size))
+ servedCellInfo.CellId = fmt.Sprintf("%02x:%02x", plmnId, eUTRANcellIdentifier)
+
+ servedCellInfo.Tac = fmt.Sprintf("%02x", C.GoBytes(unsafe.Pointer(member.servedCellInfo.tAC.buf), C.int(member.servedCellInfo.tAC.size)))
+
+ if member.servedCellInfo.broadcastPLMNs.list.count > 0 && member.servedCellInfo.broadcastPLMNs.list.count <= maxnoofBPLMNs {
+ count := int(member.servedCellInfo.broadcastPLMNs.list.count)
+ pLMN_Identity_slice := (*[1 << 30]*C.PLMN_Identity_t)(unsafe.Pointer(member.servedCellInfo.broadcastPLMNs.list.array))[:count:count]
+ for _, pLMN_Identity := range pLMN_Identity_slice {
+ servedCellInfo.BroadcastPlmns = append(servedCellInfo.BroadcastPlmns, fmt.Sprintf("%02x", C.GoBytes(unsafe.Pointer(pLMN_Identity.buf), C.int(pLMN_Identity.size))))
+ }
+ }
+
+ switch member.servedCellInfo.eUTRA_Mode_Info.present {
+ case C.EUTRA_Mode_Info_PR_fDD:
+ if fdd, err := getFDDInfo(*(**C.FDD_Info_t)(unsafe.Pointer(&member.servedCellInfo.eUTRA_Mode_Info.choice[0]))); fdd != nil && err == nil {
+ servedCellInfo.ChoiceEutraMode, servedCellInfo.EutraMode = &entities.ChoiceEUTRAMode{Fdd: fdd}, entities.Eutra_FDD
+ } else {
+ return nil, err
+ }
+ case C.EUTRA_Mode_Info_PR_tDD:
+ if tdd, err := getTDDInfo(*(**C.TDD_Info_t)(unsafe.Pointer(&member.servedCellInfo.eUTRA_Mode_Info.choice[0]))); tdd != nil && err == nil {
+ servedCellInfo.ChoiceEutraMode, servedCellInfo.EutraMode = &entities.ChoiceEUTRAMode{Tdd: tdd}, entities.Eutra_TDD
+ } else {
+ return nil, err
+ }
+ }
+
+ neighbours, err := getServedCellsNeighbour_Info(member.neighbour_Info)
+ if err != nil {
+ return nil, err
+ }
+ servedCellInfo.NeighbourInfos = neighbours
+
+ if err := getServedCellsInfoExt((*C.ProtocolExtensionContainer_170P192_t)(unsafe.Pointer(member.servedCellInfo.iE_Extensions)), servedCellInfo); err != nil {
+ return nil, err
+ }
+
+ servedCells = append(servedCells, servedCellInfo)
+
+ }
+ }
+
+ return servedCells, nil
+}
+
+func getGUGroupIDList(guGroupIDList *C.GUGroupIDList_t) []string {
+ var ids []string
+
+ if guGroupIDList != nil && guGroupIDList.list.count > 0 && guGroupIDList.list.count <= maxPools {
+ count:=int(guGroupIDList.list.count)
+ guGroupIDList_slice := (*[1 << 30]*C.GU_Group_ID_t)(unsafe.Pointer(guGroupIDList.list.array))[:count:count]
+ for _, guGroupID := range guGroupIDList_slice {
+ plmnId := C.GoBytes(unsafe.Pointer(guGroupID.pLMN_Identity.buf), C.int(guGroupID.pLMN_Identity.size))
+ mME_Group_ID := C.GoBytes(unsafe.Pointer(guGroupID.mME_Group_ID.buf), C.int(guGroupID.mME_Group_ID.size))
+ ids = append(ids, fmt.Sprintf("%02x:%02x", plmnId, mME_Group_ID))
+ }
+ }
+
+ return ids
+}
+
+// Populate the ENB structure with data from the pdu
+// Return the ENB and the associated key which can later be used to retrieve the ENB from the database.
+func x2SetupResponseToProtobuf(pdu *C.E2AP_PDU_t) (*entities.GlobalNbId, *entities.Enb, error) {
+ var globalNbId *entities.GlobalNbId
+
+ enb := entities.Enb{}
+
+ if pdu.present == C.E2AP_PDU_PR_successfulOutcome {
+ //dereference a union of pointers (C union is represented as a byte array with the size of the largest member)
+ successfulOutcome := *(**C.SuccessfulOutcome_t)(unsafe.Pointer(&pdu.choice[0]))
+ if successfulOutcome != nil && successfulOutcome.value.present == C.SuccessfulOutcome__value_PR_X2SetupResponse {
+ x2SetupResponse := (*C.X2SetupResponse_t)(unsafe.Pointer(&successfulOutcome.value.choice[0]))
+ if x2SetupResponse != nil && x2SetupResponse.protocolIEs.list.count > 0 {
+ count := int(x2SetupResponse.protocolIEs.list.count)
+ x2SetupResponse_IEs_slice := (*[1 << 30]*C.X2SetupResponse_IEs_t)(unsafe.Pointer(x2SetupResponse.protocolIEs.list.array))[:count:count]
+ for _, x2SetupResponse_IE := range x2SetupResponse_IEs_slice {
+ switch x2SetupResponse_IE.value.present {
+ case C.X2SetupResponse_IEs__value_PR_GlobalENB_ID:
+ globalENB_ID := (*C.GlobalENB_ID_t)(unsafe.Pointer(&x2SetupResponse_IE.value.choice[0]))
+ plmnId := C.GoBytes(unsafe.Pointer(globalENB_ID.pLMN_Identity.buf), C.int(globalENB_ID.pLMN_Identity.size))
+ enbType, enbVal:= getENB_ID_choice(globalENB_ID.eNB_ID)
+
+ globalNbId = &entities.GlobalNbId{}
+ globalNbId.NbId = fmt.Sprintf("%02x", enbVal)
+ globalNbId.PlmnId = fmt.Sprintf("%02x", plmnId)
+ enb.EnbType = enbType
+
+ case C.X2SetupResponse_IEs__value_PR_ServedCells:
+ ServedCells, err := getServedCells((*C.ServedCells_t)(unsafe.Pointer(&x2SetupResponse_IE.value.choice[0])))
+ if err != nil {
+ return globalNbId, nil, err
+ }
+ enb.ServedCells = ServedCells
+ case C.X2SetupResponse_IEs__value_PR_GUGroupIDList:
+ enb.GuGroupIds= getGUGroupIDList((*C.GUGroupIDList_t)(unsafe.Pointer(&x2SetupResponse_IE.value.choice[0])))
+ case C.X2SetupResponse_IEs__value_PR_CriticalityDiagnostics:
+ /*ignored*/
+ case C.X2SetupResponse_IEs__value_PR_LHN_ID:
+ /*ignored*/
+ }
+ }
+ }
+ }
+ }
+
+
+ return globalNbId, &enb, nil
+}
+
+func unpackX2SetupResponseAndExtract(logger *logger.Logger, allocationBufferSize int, packedBufferSize int, packedBuf []byte, maxMessageBufferSize int) (*entities.GlobalNbId, *entities.Enb, error) {
+ pdu, err := unpackX2apPdu(logger, allocationBufferSize, packedBufferSize, packedBuf, maxMessageBufferSize)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ defer C.delete_pdu(pdu)
+ return x2SetupResponseToProtobuf(pdu)
+}
+
Code Review / ric-plt / e2mgr.git / blobdiff