100 lines
3.8 KiB
Go
100 lines
3.8 KiB
Go
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//
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// Copyright 2019 AT&T Intellectual Property
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// Copyright 2019 Nokia
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This source code is part of the near-RT RIC (RAN Intelligent Controller)
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// platform project (RICP).
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package converters
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// #cgo CFLAGS: -I../3rdparty/asn1codec/inc/ -I../3rdparty/asn1codec/e2ap_engine/
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// #cgo LDFLAGS: -L ../3rdparty/asn1codec/lib/ -L../3rdparty/asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
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// #include <asn1codec_utils.h>
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// #include <x2setup_response_wrapper.h>
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import "C"
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import (
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"e2mgr/e2pdus"
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"e2mgr/logger"
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"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
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"unsafe"
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)
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type EndcSetupFailureResponseConverter struct {
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logger *logger.Logger
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}
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type IEndcSetupFailureResponseConverter interface {
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UnpackEndcSetupFailureResponseAndExtract(packedBuf []byte) (*entities.SetupFailure, error)
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}
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func NewEndcSetupFailureResponseConverter(logger *logger.Logger) *EndcSetupFailureResponseConverter {
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return &EndcSetupFailureResponseConverter{
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logger: logger,
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}
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}
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// Populate and return the EN-DC/X2 setup response failure structure with data from the pdu
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func endcX2SetupFailureResponseToProtobuf(pdu *C.E2AP_PDU_t) (*entities.SetupFailure, error) {
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setupFailure := entities.SetupFailure{}
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if pdu.present == C.E2AP_PDU_PR_unsuccessfulOutcome {
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//dereference a union of pointers (C union is represented as a byte array with the size of the largest member)
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unsuccessfulOutcome := *(**C.UnsuccessfulOutcome_t)(unsafe.Pointer(&pdu.choice[0]))
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if unsuccessfulOutcome != nil && unsuccessfulOutcome.value.present == C.UnsuccessfulOutcome__value_PR_ENDCX2SetupFailure {
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endcX2SetupFailure := (*C.ENDCX2SetupFailure_t)(unsafe.Pointer(&unsuccessfulOutcome.value.choice[0]))
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if endcX2SetupFailure != nil && endcX2SetupFailure.protocolIEs.list.count > 0 {
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count:=int(endcX2SetupFailure.protocolIEs.list.count)
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endcX2SetupFailure_IEs_slice := (*[1 << 30]*C.ENDCX2SetupFailure_IEs_t)(unsafe.Pointer(endcX2SetupFailure.protocolIEs.list.array))[:count:count]
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for _, endcX2SetupFailure_IE := range endcX2SetupFailure_IEs_slice {
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if endcX2SetupFailure_IE != nil {
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switch endcX2SetupFailure_IE.value.present {
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case C.ENDCX2SetupFailure_IEs__value_PR_Cause:
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causeIE := (*C.Cause_t)(unsafe.Pointer(&endcX2SetupFailure_IE.value.choice[0]))
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err := getCause(causeIE, &setupFailure)
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if err != nil {
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return nil, err
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}
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case C.ENDCX2SetupFailure_IEs__value_PR_TimeToWait:
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setupFailure.TimeToWait = entities.TimeToWait(1 + *((*C.TimeToWait_t)(unsafe.Pointer(&endcX2SetupFailure_IE.value.choice[0]))))
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case C.ENDCX2SetupFailure_IEs__value_PR_CriticalityDiagnostics:
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cdIE := (*C.CriticalityDiagnostics_t)(unsafe.Pointer(&endcX2SetupFailure_IE.value.choice[0]))
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if cd, err := getCriticalityDiagnostics(cdIE); err == nil {
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setupFailure.CriticalityDiagnostics = cd
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} else {
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return nil, err
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}
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}
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}
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}
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}
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}
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}
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return &setupFailure, nil
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}
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func (c *EndcSetupFailureResponseConverter) UnpackEndcSetupFailureResponseAndExtract(packedBuf []byte) (*entities.SetupFailure, error) {
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pdu, err := UnpackX2apPdu(c.logger, e2pdus.MaxAsn1CodecAllocationBufferSize, len(packedBuf), packedBuf, e2pdus.MaxAsn1CodecMessageBufferSize)
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if err != nil {
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return nil, err
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}
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defer C.delete_pdu(pdu)
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return endcX2SetupFailureResponseToProtobuf(pdu)
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}
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