2 // Copyright 2019 AT&T Intellectual Property
3 // Copyright 2019 Nokia
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
17 // This source code is part of the near-RT RIC (RAN Intelligent Controller)
18 // platform project (RICP).
23 // #cgo CFLAGS: -I../3rdparty/asn1codec/inc/ -I../3rdparty/asn1codec/e2ap_engine/
24 // #cgo LDFLAGS: -L ../3rdparty/asn1codec/lib/ -L../3rdparty/asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
25 // #include <asn1codec_utils.h>
26 // #include <x2setup_response_wrapper.h>
31 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
39 type X2SetupFailureResponseConverter struct {
43 type IX2SetupFailureResponseConverter interface {
44 UnpackX2SetupFailureResponseAndExtract(packedBuf []byte) (*entities.SetupFailure, error)
47 func NewX2SetupFailureResponseConverter(logger *logger.Logger) *X2SetupFailureResponseConverter {
48 return &X2SetupFailureResponseConverter{
53 // The following are possible values of a choice field, find which the pdu contains.
54 func getCause(causeIE *C.Cause_t, setupFailure *entities.SetupFailure) error {
55 switch causeIE.present {
56 case C.Cause_PR_radioNetwork:
57 v := (*C.CauseRadioNetwork_t)(unsafe.Pointer(&causeIE.choice[0]))
58 setupFailure.CauseGroup = &entities.SetupFailure_NetworkLayerCause{NetworkLayerCause: entities.RadioNetworkLayer_Cause(1 + *v)}
59 case C.Cause_PR_transport:
60 v := (*C.CauseTransport_t)(unsafe.Pointer(&causeIE.choice[0]))
61 setupFailure.CauseGroup = &entities.SetupFailure_TransportLayerCause{TransportLayerCause: entities.TransportLayer_Cause(1 + *v)}
62 case C.Cause_PR_protocol:
63 v := (*C.CauseProtocol_t)(unsafe.Pointer(&causeIE.choice[0]))
64 setupFailure.CauseGroup = &entities.SetupFailure_ProtocolCause{ProtocolCause: entities.Protocol_Cause(1 + *v)}
66 v := (*C.CauseMisc_t)(unsafe.Pointer(&causeIE.choice[0]))
67 setupFailure.CauseGroup = &entities.SetupFailure_MiscellaneousCause{MiscellaneousCause: entities.Miscellaneous_Cause(1 + *v)}
72 func getCriticalityDiagnostics(critDiagIE *C.CriticalityDiagnostics_t) (*entities.CriticalityDiagnostics, error) {
73 var critDiag *entities.CriticalityDiagnostics
75 if critDiagIE.procedureCode != nil {
76 critDiag = &entities.CriticalityDiagnostics{}
77 critDiag.ProcedureCode = uint32(*critDiagIE.procedureCode)
81 if critDiagIE.triggeringMessage != nil {
83 critDiag = &entities.CriticalityDiagnostics{}
85 critDiag.TriggeringMessage = entities.TriggeringMessage(1 + *critDiagIE.triggeringMessage)
89 if critDiagIE.procedureCriticality != nil {
91 critDiag = &entities.CriticalityDiagnostics{}
93 critDiag.ProcedureCriticality = entities.Criticality(1 + *critDiagIE.procedureCriticality)
97 if critDiagIE.iEsCriticalityDiagnostics != nil && critDiagIE.iEsCriticalityDiagnostics.list.count > 0 && critDiagIE.iEsCriticalityDiagnostics.list.count < maxNrOfErrors {
99 critDiag = &entities.CriticalityDiagnostics{}
101 var infoElements []*entities.InformationElementCriticalityDiagnostic
102 iEsCriticalityDiagnostics := (*C.CriticalityDiagnostics_IE_List_t)(critDiagIE.iEsCriticalityDiagnostics)
103 count:=int(iEsCriticalityDiagnostics.list.count)
104 iEsCriticalityDiagnostics_slice := (*[1 << 30]*C.CriticalityDiagnostics_IE_List__Member)(unsafe.Pointer(iEsCriticalityDiagnostics.list.array))[:count:count]
105 for _, criticalityDiagnostics_IE_List__Member := range iEsCriticalityDiagnostics_slice {
106 infoElement := &entities.InformationElementCriticalityDiagnostic{IeCriticality: entities.Criticality(1 + criticalityDiagnostics_IE_List__Member.iECriticality)}
107 infoElement.IeId = uint32(criticalityDiagnostics_IE_List__Member.iE_ID)
108 infoElement.TypeOfError = entities.TypeOfError(1 + criticalityDiagnostics_IE_List__Member.typeOfError)
110 infoElements = append(infoElements, infoElement)
113 critDiag.InformationElementCriticalityDiagnostics = infoElements
119 // Populate and return the EN-DC/X2 setup response failure structure with data from the pdu
120 func x2SetupFailureResponseToProtobuf(pdu *C.E2AP_PDU_t) (*entities.SetupFailure, error) {
121 setupFailure := entities.SetupFailure{}
123 if pdu.present == C.E2AP_PDU_PR_unsuccessfulOutcome {
124 //dereference a union of pointers (C union is represented as a byte array with the size of the largest member)
125 unsuccessfulOutcome := *(**C.UnsuccessfulOutcome_t)(unsafe.Pointer(&pdu.choice[0]))
126 if unsuccessfulOutcome != nil && unsuccessfulOutcome.value.present == C.UnsuccessfulOutcome__value_PR_X2SetupFailure {
127 x2SetupFailure := (*C.X2SetupFailure_t)(unsafe.Pointer(&unsuccessfulOutcome.value.choice[0]))
128 if x2SetupFailure != nil && x2SetupFailure.protocolIEs.list.count > 0 {
129 count:=int(x2SetupFailure.protocolIEs.list.count)
130 x2SetupFailure_IEs_slice := (*[1 << 30]*C.X2SetupFailure_IEs_t)(unsafe.Pointer(x2SetupFailure.protocolIEs.list.array))[:count:count]
131 for _, x2SetupFailure_IE := range x2SetupFailure_IEs_slice {
132 if x2SetupFailure_IE != nil {
133 switch x2SetupFailure_IE.value.present {
134 case C.X2SetupFailure_IEs__value_PR_Cause:
135 causeIE := (*C.Cause_t)(unsafe.Pointer(&x2SetupFailure_IE.value.choice[0]))
136 err := getCause(causeIE, &setupFailure)
140 case C.X2SetupFailure_IEs__value_PR_TimeToWait:
141 setupFailure.TimeToWait = entities.TimeToWait(1 + *((*C.TimeToWait_t)(unsafe.Pointer(&x2SetupFailure_IE.value.choice[0]))))
142 case C.X2SetupFailure_IEs__value_PR_CriticalityDiagnostics:
143 cdIE := (*C.CriticalityDiagnostics_t)(unsafe.Pointer(&x2SetupFailure_IE.value.choice[0]))
144 if cd, err := getCriticalityDiagnostics(cdIE); err == nil {
145 setupFailure.CriticalityDiagnostics = cd
156 return &setupFailure, nil
159 func (c *X2SetupFailureResponseConverter) UnpackX2SetupFailureResponseAndExtract(packedBuf []byte) (*entities.SetupFailure, error) {
160 pdu, err := UnpackX2apPdu(c.logger, e2pdus.MaxAsn1CodecAllocationBufferSize, len(packedBuf), packedBuf, e2pdus.MaxAsn1CodecMessageBufferSize)
165 defer C.delete_pdu(pdu)
167 return x2SetupFailureResponseToProtobuf(pdu)