mirror of https://github.com/acidanthera/audk.git
102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/** @file
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Implementation functions and structures for var check protocol
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and variable lock protocol based on VarCheckLib.
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Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
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Copyright (c) Microsoft Corporation.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "Variable.h"
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/**
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Register SetVariable check handler.
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@param[in] Handler Pointer to check handler.
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@retval EFI_SUCCESS The SetVariable check handler was registered successfully.
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@retval EFI_INVALID_PARAMETER Handler is NULL.
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@retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
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already been signaled.
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@retval EFI_OUT_OF_RESOURCES There is not enough resource for the SetVariable check handler register request.
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@retval EFI_UNSUPPORTED This interface is not implemented.
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For example, it is unsupported in VarCheck protocol if both VarCheck and SmmVarCheck protocols are present.
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**/
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EFI_STATUS
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EFIAPI
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VarCheckRegisterSetVariableCheckHandler (
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IN VAR_CHECK_SET_VARIABLE_CHECK_HANDLER Handler
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)
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{
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EFI_STATUS Status;
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AcquireLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
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Status = VarCheckLibRegisterSetVariableCheckHandler (Handler);
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ReleaseLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
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return Status;
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}
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/**
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Variable property set.
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@param[in] Name Pointer to the variable name.
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@param[in] Guid Pointer to the vendor GUID.
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@param[in] VariableProperty Pointer to the input variable property.
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@retval EFI_SUCCESS The property of variable specified by the Name and Guid was set successfully.
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@retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string,
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or the fields of VariableProperty are not valid.
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@retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
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already been signaled.
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@retval EFI_OUT_OF_RESOURCES There is not enough resource for the variable property set request.
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**/
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EFI_STATUS
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EFIAPI
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VarCheckVariablePropertySet (
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IN CHAR16 *Name,
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IN EFI_GUID *Guid,
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IN VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
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)
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{
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EFI_STATUS Status;
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AcquireLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
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Status = VarCheckLibVariablePropertySet (Name, Guid, VariableProperty);
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ReleaseLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
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return Status;
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}
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/**
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Variable property get.
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@param[in] Name Pointer to the variable name.
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@param[in] Guid Pointer to the vendor GUID.
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@param[out] VariableProperty Pointer to the output variable property.
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@retval EFI_SUCCESS The property of variable specified by the Name and Guid was got successfully.
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@retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string.
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@retval EFI_NOT_FOUND The property of variable specified by the Name and Guid was not found.
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**/
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EFI_STATUS
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EFIAPI
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VarCheckVariablePropertyGet (
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IN CHAR16 *Name,
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IN EFI_GUID *Guid,
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OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
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)
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{
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EFI_STATUS Status;
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AcquireLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
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Status = VarCheckLibVariablePropertyGet (Name, Guid, VariableProperty);
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ReleaseLockOnlyAtBootTime (&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
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return Status;
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}
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