RedfishPkg/RestJsonStructureDxe: EFI REST JSON Structure Protocol
Implementation of EFI_REST_JSON_STRUCTURE_PROTOCOL, refer to UEFI spec 2.8 Section 29.7.3 EFI REST JSON Resource to C Structure Converter. Signed-off-by: Abner Chang <abner.chang@hpe.com> Cc: Jiaxin Wu <jiaxin.wu@intel.com> Cc: Siyuan Fu <siyuan.fu@intel.com> Cc: Fan Wang <fan.wang@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Nickle Wang <nickle.wang@hpe.com> Reviewed-by: Nickle Wang <nickle.wang@hpe.com>
This commit is contained in:
Abner Chang
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parent
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commit
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586
RedfishPkg/RestJsonStructureDxe/RestJsonStructureDxe.c
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586
RedfishPkg/RestJsonStructureDxe/RestJsonStructureDxe.c
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@@ -0,0 +1,586 @@
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/** @file
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The implementation of EFI REST Resource JSON to C structure convertor
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Protocol.
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(C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi.h>
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#include <Protocol/RestJsonStructure.h>
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#include "RestJsonStructureInternal.h"
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LIST_ENTRY mRestJsonStructureList;
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EFI_HANDLE mProtocolHandle;
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/**
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This function registers Restful resource interpreter for the
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specific schema.
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@param[in] This This is the EFI_REST_JSON_STRUCTURE_PROTOCOL instance.
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@param[in] JsonStructureSupported The type and version of REST JSON resource which this converter
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supports.
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@param[in] ToStructure The function to convert REST JSON resource to structure.
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@param[in] ToJson The function to convert REST JSON structure to JSON in text format.
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@param[in] DestroyStructure Destroy REST JSON structure returned in ToStructure() function.
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@retval EFI_SUCCESS Register successfully.
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@retval Others Fail to register.
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**/
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EFI_STATUS
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EFIAPI
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RestJsonStructureRegister (
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IN EFI_REST_JSON_STRUCTURE_PROTOCOL *This,
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IN EFI_REST_JSON_STRUCTURE_SUPPORTED *JsonStructureSupported,
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IN EFI_REST_JSON_STRUCTURE_TO_STRUCTURE ToStructure,
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IN EFI_REST_JSON_STRUCTURE_TO_JSON ToJson,
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IN EFI_REST_JSON_STRUCTURE_DESTORY_STRUCTURE DestroyStructure
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)
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{
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UINTN NumberOfNS;
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UINTN Index;
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LIST_ENTRY *ThisList;
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REST_JSON_STRUCTURE_INSTANCE *Instance;
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EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *CloneSupportedInterpId;
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EFI_REST_JSON_STRUCTURE_SUPPORTED *ThisSupportedInterp;
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if (This == NULL ||
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ToStructure == NULL ||
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ToJson == NULL ||
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DestroyStructure == NULL ||
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JsonStructureSupported == NULL
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) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Check how many name space interpreter can interpret.
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//
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ThisList = &JsonStructureSupported->NextSupportedRsrcInterp;
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NumberOfNS = 1;
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while (TRUE) {
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if (ThisList->ForwardLink == &JsonStructureSupported->NextSupportedRsrcInterp) {
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break;
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} else {
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ThisList = ThisList->ForwardLink;
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NumberOfNS ++;
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}
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};
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Instance =
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(REST_JSON_STRUCTURE_INSTANCE *)AllocateZeroPool (sizeof (REST_JSON_STRUCTURE_INSTANCE) + NumberOfNS * sizeof (EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER));
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if (Instance == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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InitializeListHead (&Instance->NextRestJsonStructureInstance);
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Instance->NumberOfNameSpaceToConvert = NumberOfNS;
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Instance->SupportedRsrcIndentifier = (EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *)((REST_JSON_STRUCTURE_INSTANCE *)Instance + 1);
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//
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// Copy supported resource identifer interpreter.
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//
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CloneSupportedInterpId = Instance->SupportedRsrcIndentifier;
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ThisSupportedInterp = JsonStructureSupported;
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for (Index = 0; Index < NumberOfNS; Index ++) {
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CopyMem ((VOID *)CloneSupportedInterpId, (VOID *)&ThisSupportedInterp->RestResourceInterp, sizeof (EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER));
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ThisSupportedInterp = (EFI_REST_JSON_STRUCTURE_SUPPORTED *)ThisSupportedInterp->NextSupportedRsrcInterp.ForwardLink;
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CloneSupportedInterpId ++;
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}
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Instance->JsonToStructure = ToStructure;
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Instance->StructureToJson = ToJson;
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Instance->DestroyStructure = DestroyStructure;
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InsertTailList (&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance);
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return EFI_SUCCESS;
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}
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/**
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This function check if this interpreter instance support the given namesapce.
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@param[in] This EFI_REST_JSON_STRUCTURE_PROTOCOL instance.
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@param[in] InterpreterInstance REST_JSON_STRUCTURE_INSTANCE
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@param[in] RsrcTypeIdentifier Resource type identifier.
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@param[in] ResourceRaw Given Restful resource.
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@param[out] RestJSonHeader Property interpreted from given ResourceRaw.
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@retval EFI_SUCCESS
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@retval Others.
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**/
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EFI_STATUS
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InterpreterInstanceToStruct (
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IN EFI_REST_JSON_STRUCTURE_PROTOCOL *This,
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IN REST_JSON_STRUCTURE_INSTANCE *InterpreterInstance,
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IN EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *RsrcTypeIdentifier OPTIONAL,
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IN CHAR8 *ResourceRaw,
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OUT EFI_REST_JSON_STRUCTURE_HEADER **RestJSonHeader
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)
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{
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UINTN Index;
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EFI_STATUS Status;
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EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *ThisSupportedRsrcTypeId;
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if (This == NULL ||
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InterpreterInstance == NULL ||
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ResourceRaw == NULL ||
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RestJSonHeader == NULL
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) {
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return EFI_INVALID_PARAMETER;
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}
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Status = EFI_UNSUPPORTED;
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if (RsrcTypeIdentifier == NULL) {
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//
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// No resource type identifier, send to intepreter anyway.
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// Interpreter may recognize this resource.
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//
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Status = InterpreterInstance->JsonToStructure (
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This,
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NULL,
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ResourceRaw,
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RestJSonHeader
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);
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} else {
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//
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// Check if the namesapce and version is supported by this interpreter.
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//
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ThisSupportedRsrcTypeId = InterpreterInstance->SupportedRsrcIndentifier;
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for (Index = 0; Index < InterpreterInstance->NumberOfNameSpaceToConvert; Index ++){
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if (AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.ResourceTypeName,
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ThisSupportedRsrcTypeId->NameSpace.ResourceTypeName) == 0){
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if ((RsrcTypeIdentifier->NameSpace.MajorVersion == NULL) &&
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(RsrcTypeIdentifier->NameSpace.MinorVersion == NULL) &&
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(RsrcTypeIdentifier->NameSpace.ErrataVersion == NULL)
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) {
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//
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// Don't check version of this resource type identifier.
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//
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Status = InterpreterInstance->JsonToStructure (
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This,
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RsrcTypeIdentifier,
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ResourceRaw,
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RestJSonHeader
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);
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break;
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} else {
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//
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// Check version.
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//
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if ((AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.MajorVersion,
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ThisSupportedRsrcTypeId->NameSpace.MajorVersion) == 0) &&
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(AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.MinorVersion,
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ThisSupportedRsrcTypeId->NameSpace.MinorVersion) == 0) &&
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(AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.ErrataVersion,
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ThisSupportedRsrcTypeId->NameSpace.ErrataVersion) == 0)) {
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Status = InterpreterInstance->JsonToStructure (
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This,
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RsrcTypeIdentifier,
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ResourceRaw,
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RestJSonHeader
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);
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break;
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}
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}
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}
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ThisSupportedRsrcTypeId ++;
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}
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}
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return Status;
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}
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/**
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This function converts JSON C structure to JSON property.
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@param[in] This EFI_REST_JSON_STRUCTURE_PROTOCOL instance.
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@param[in] InterpreterInstance REST_JSON_STRUCTURE_INSTANCE
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@param[in] RestJSonHeader Resource type identifier.
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@param[out] ResourceRaw Output in JSON text format.
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@retval EFI_SUCCESS
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@retval Others.
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**/
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EFI_STATUS
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InterpreterEfiStructToInstance (
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IN EFI_REST_JSON_STRUCTURE_PROTOCOL *This,
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IN REST_JSON_STRUCTURE_INSTANCE *InterpreterInstance,
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IN EFI_REST_JSON_STRUCTURE_HEADER *RestJSonHeader,
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OUT CHAR8 **ResourceRaw
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)
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{
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UINTN Index;
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EFI_STATUS Status;
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EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *ThisSupportedRsrcTypeId;
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EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *RsrcTypeIdentifier;
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if (This == NULL ||
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InterpreterInstance == NULL ||
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RestJSonHeader == NULL ||
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ResourceRaw == NULL
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) {
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return EFI_INVALID_PARAMETER;
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}
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RsrcTypeIdentifier = &RestJSonHeader->JsonRsrcIdentifier;
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if (RsrcTypeIdentifier == NULL ||
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RsrcTypeIdentifier->NameSpace.ResourceTypeName == NULL ||
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RsrcTypeIdentifier->NameSpace.MajorVersion == NULL ||
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RsrcTypeIdentifier->NameSpace.MinorVersion == NULL ||
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RsrcTypeIdentifier->NameSpace.ErrataVersion == NULL
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) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Check if the namesapce and version is supported by this interpreter.
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//
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Status = EFI_UNSUPPORTED;
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ThisSupportedRsrcTypeId = InterpreterInstance->SupportedRsrcIndentifier;
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for (Index = 0; Index < InterpreterInstance->NumberOfNameSpaceToConvert; Index ++){
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if (AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.ResourceTypeName,
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ThisSupportedRsrcTypeId->NameSpace.ResourceTypeName) == 0){
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//
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// Check version.
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//
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if ((AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.MajorVersion,
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ThisSupportedRsrcTypeId->NameSpace.MajorVersion) == 0) &&
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(AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.MinorVersion,
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ThisSupportedRsrcTypeId->NameSpace.MinorVersion) == 0) &&
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(AsciiStrCmp (
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RsrcTypeIdentifier->NameSpace.ErrataVersion,
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ThisSupportedRsrcTypeId->NameSpace.ErrataVersion) == 0)) {
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Status = InterpreterInstance->StructureToJson (
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This,
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RestJSonHeader,
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ResourceRaw
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);
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break;
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}
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}
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ThisSupportedRsrcTypeId ++;
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}
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return Status;
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}
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/**
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This function destory REST property structure.
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@param[in] This EFI_REST_JSON_STRUCTURE_PROTOCOL instance.
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@param[in] InterpreterInstance REST_JSON_STRUCTURE_INSTANCE
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@param[in] RestJSonHeader Property interpreted from given ResourceRaw.
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@retval EFI_SUCCESS
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@retval Others.
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**/
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EFI_STATUS
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InterpreterInstanceDestoryJsonStruct (
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IN EFI_REST_JSON_STRUCTURE_PROTOCOL *This,
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IN REST_JSON_STRUCTURE_INSTANCE *InterpreterInstance,
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IN EFI_REST_JSON_STRUCTURE_HEADER *RestJSonHeader
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)
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{
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UINTN Index;
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EFI_STATUS Status;
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EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *ThisSupportedRsrcTypeId;
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if (This == NULL ||
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InterpreterInstance == NULL ||
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RestJSonHeader == NULL
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) {
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return EFI_INVALID_PARAMETER;
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}
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Status = EFI_UNSUPPORTED;
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//
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// Check if the namesapce and version is supported by this interpreter.
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//
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ThisSupportedRsrcTypeId = InterpreterInstance->SupportedRsrcIndentifier;
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for (Index = 0; Index < InterpreterInstance->NumberOfNameSpaceToConvert; Index ++){
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if (AsciiStrCmp (
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RestJSonHeader->JsonRsrcIdentifier.NameSpace.ResourceTypeName,
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ThisSupportedRsrcTypeId->NameSpace.ResourceTypeName) == 0) {
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if ((RestJSonHeader->JsonRsrcIdentifier.NameSpace.MajorVersion == NULL) &&
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(RestJSonHeader->JsonRsrcIdentifier.NameSpace.MinorVersion == NULL) &&
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(RestJSonHeader->JsonRsrcIdentifier.NameSpace.ErrataVersion == NULL)
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) {
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//
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// Don't check version of this resource type identifier.
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//
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Status = InterpreterInstance->DestroyStructure (
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This,
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RestJSonHeader
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);
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break;
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} else {
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//
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// Check version.
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//
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if ((AsciiStrCmp (
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RestJSonHeader->JsonRsrcIdentifier.NameSpace.MajorVersion,
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ThisSupportedRsrcTypeId->NameSpace.MajorVersion) == 0) &&
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(AsciiStrCmp (
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RestJSonHeader->JsonRsrcIdentifier.NameSpace.MinorVersion,
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ThisSupportedRsrcTypeId->NameSpace.MinorVersion) == 0) &&
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(AsciiStrCmp (
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RestJSonHeader->JsonRsrcIdentifier.NameSpace.ErrataVersion,
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ThisSupportedRsrcTypeId->NameSpace.ErrataVersion) == 0)) {
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Status = InterpreterInstance->DestroyStructure (
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This,
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RestJSonHeader
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);
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break;
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}
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}
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}
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ThisSupportedRsrcTypeId ++;
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}
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return Status;
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}
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/**
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This function translates the given JSON text to JSON C Structure.
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@param[in] This EFI_REST_JSON_STRUCTURE_PROTOCOL instance.
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@param[in] RsrcTypeIdentifier Resource type identifier.
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@param[in] ResourceJsonText Given Restful resource.
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@param[out] JsonStructure Property interpreted from given ResourceRaw.
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@retval EFI_SUCCESS
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@retval Others.
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**/
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EFI_STATUS
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EFIAPI
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RestJsonStructureToStruct (
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IN EFI_REST_JSON_STRUCTURE_PROTOCOL *This,
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IN EFI_REST_JSON_RESOURCE_TYPE_IDENTIFIER *RsrcTypeIdentifier OPTIONAL,
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IN CHAR8 *ResourceJsonText,
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OUT EFI_REST_JSON_STRUCTURE_HEADER **JsonStructure
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)
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{
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EFI_STATUS Status;
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REST_JSON_STRUCTURE_INSTANCE *Instance;
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if (This == NULL ||
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ResourceJsonText == NULL ||
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JsonStructure == NULL
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) {
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return EFI_INVALID_PARAMETER;
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}
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if (IsListEmpty (&mRestJsonStructureList)) {
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return EFI_UNSUPPORTED;
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}
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Status = EFI_SUCCESS;
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Instance = (REST_JSON_STRUCTURE_INSTANCE *)GetFirstNode (&mRestJsonStructureList);
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while (TRUE) {
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Status = InterpreterInstanceToStruct (
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This,
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Instance,
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RsrcTypeIdentifier,
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ResourceJsonText,
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JsonStructure
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);
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if (!EFI_ERROR (Status)) {
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break;
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}
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if (IsNodeAtEnd(&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance)) {
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Status = EFI_UNSUPPORTED;
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break;
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}
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Instance = (REST_JSON_STRUCTURE_INSTANCE *)GetNextNode (&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance);
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};
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return Status;
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}
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/**
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This function destory REST property EFI structure which returned in
|
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JsonToStructure().
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@param[in] This EFI_REST_JSON_STRUCTURE_PROTOCOL instance.
|
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@param[in] RestJSonHeader Property to destory.
|
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|
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@retval EFI_SUCCESS
|
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@retval Others
|
||||
|
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**/
|
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EFI_STATUS
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EFIAPI
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RestJsonStructureDestroyStruct (
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IN EFI_REST_JSON_STRUCTURE_PROTOCOL *This,
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IN EFI_REST_JSON_STRUCTURE_HEADER *RestJSonHeader
|
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)
|
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{
|
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EFI_STATUS Status;
|
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REST_JSON_STRUCTURE_INSTANCE *Instance;
|
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|
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if (This == NULL || RestJSonHeader == NULL) {
|
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return EFI_INVALID_PARAMETER;
|
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}
|
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|
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if (IsListEmpty (&mRestJsonStructureList)) {
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return EFI_UNSUPPORTED;
|
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}
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Status = EFI_SUCCESS;
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Instance = (REST_JSON_STRUCTURE_INSTANCE *)GetFirstNode (&mRestJsonStructureList);
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while (TRUE) {
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Status = InterpreterInstanceDestoryJsonStruct (
|
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This,
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Instance,
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RestJSonHeader
|
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);
|
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if (!EFI_ERROR (Status)) {
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break;
|
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}
|
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if (IsNodeAtEnd(&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance)) {
|
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Status = EFI_UNSUPPORTED;
|
||||
break;
|
||||
}
|
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Instance = (REST_JSON_STRUCTURE_INSTANCE *)GetNextNode (&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance);
|
||||
};
|
||||
return Status;
|
||||
}
|
||||
|
||||
/**
|
||||
This function translates the given JSON C Structure to JSON text.
|
||||
|
||||
@param[in] This EFI_REST_JSON_STRUCTURE_PROTOCOL instance.
|
||||
@param[in] RestJSonHeader Given Restful resource.
|
||||
@param[out] ResourceRaw Resource in RESTfuls service oriented.
|
||||
|
||||
@retval EFI_SUCCESS
|
||||
@retval Others Fail to remove the entry
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
RestJsonStructureToJson (
|
||||
IN EFI_REST_JSON_STRUCTURE_PROTOCOL *This,
|
||||
IN EFI_REST_JSON_STRUCTURE_HEADER *RestJSonHeader,
|
||||
OUT CHAR8 **ResourceRaw
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
REST_JSON_STRUCTURE_INSTANCE *Instance;
|
||||
|
||||
if (This == NULL || RestJSonHeader == NULL || ResourceRaw == NULL) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
if (IsListEmpty (&mRestJsonStructureList)) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
Status = EFI_SUCCESS;
|
||||
Instance = (REST_JSON_STRUCTURE_INSTANCE *)GetFirstNode (&mRestJsonStructureList);
|
||||
while (TRUE) {
|
||||
Status = InterpreterEfiStructToInstance (
|
||||
This,
|
||||
Instance,
|
||||
RestJSonHeader,
|
||||
ResourceRaw
|
||||
);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
break;
|
||||
}
|
||||
if (IsNodeAtEnd(&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance)) {
|
||||
Status = EFI_UNSUPPORTED;
|
||||
break;
|
||||
}
|
||||
Instance = (REST_JSON_STRUCTURE_INSTANCE *)GetNextNode (&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance);
|
||||
};
|
||||
return Status;
|
||||
}
|
||||
|
||||
EFI_REST_JSON_STRUCTURE_PROTOCOL mRestJsonStructureProtocol = {
|
||||
RestJsonStructureRegister,
|
||||
RestJsonStructureToStruct,
|
||||
RestJsonStructureToJson,
|
||||
RestJsonStructureDestroyStruct
|
||||
};
|
||||
|
||||
/**
|
||||
This is the declaration of an EFI image entry point.
|
||||
|
||||
@param ImageHandle The firmware allocated handle for the UEFI image.
|
||||
@param SystemTable A pointer to the EFI System Table.
|
||||
|
||||
@retval EFI_SUCCESS The operation completed successfully.
|
||||
@retval Others An unexpected error occurred.
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
RestJsonStructureEntryPoint (
|
||||
IN EFI_HANDLE ImageHandle,
|
||||
IN EFI_SYSTEM_TABLE *SystemTable
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
InitializeListHead (&mRestJsonStructureList);
|
||||
//
|
||||
// Install the Restful Resource Interpreter Protocol.
|
||||
//
|
||||
mProtocolHandle = NULL;
|
||||
Status = gBS->InstallProtocolInterface (
|
||||
&mProtocolHandle,
|
||||
&gEfiRestJsonStructureProtocolGuid,
|
||||
EFI_NATIVE_INTERFACE,
|
||||
(VOID *)&mRestJsonStructureProtocol
|
||||
);
|
||||
return Status;
|
||||
}
|
||||
|
||||
/**
|
||||
This is the unload handle for Redfish discover module.
|
||||
|
||||
Disconnect the driver specified by ImageHandle from all the devices in the handle database.
|
||||
Uninstall all the protocols installed in the driver entry point.
|
||||
|
||||
@param[in] ImageHandle The drivers' driver image.
|
||||
|
||||
@retval EFI_SUCCESS The image is unloaded.
|
||||
@retval Others Failed to unload the image.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
RestJsonStructureUnload (
|
||||
IN EFI_HANDLE ImageHandle
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
REST_JSON_STRUCTURE_INSTANCE *Instance;
|
||||
REST_JSON_STRUCTURE_INSTANCE *NextInstance;
|
||||
|
||||
Status = gBS->UninstallProtocolInterface (
|
||||
mProtocolHandle,
|
||||
&gEfiRestJsonStructureProtocolGuid,
|
||||
(VOID *)&mRestJsonStructureProtocol
|
||||
);
|
||||
|
||||
if (IsListEmpty (&mRestJsonStructureList)) {
|
||||
return Status;
|
||||
}
|
||||
//
|
||||
// Free memory of REST_JSON_STRUCTURE_INSTANCE instance.
|
||||
//
|
||||
Instance = (REST_JSON_STRUCTURE_INSTANCE *)GetFirstNode (&mRestJsonStructureList);
|
||||
do {
|
||||
NextInstance = NULL;
|
||||
if (!IsNodeAtEnd(&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance)) {
|
||||
NextInstance = (REST_JSON_STRUCTURE_INSTANCE *)GetNextNode (&mRestJsonStructureList, &Instance->NextRestJsonStructureInstance);
|
||||
}
|
||||
FreePool ((VOID *)Instance);
|
||||
Instance = NextInstance;
|
||||
} while (Instance != NULL);
|
||||
|
||||
return Status;
|
||||
}
|
||||
Reference in New Issue
Block a user