mirror of https://github.com/acidanthera/audk.git
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/** @file
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Public definitions for Variable Key Library.
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Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _VARIABLE_KEY_LIB_H_
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#define _VARIABLE_KEY_LIB_H_
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#include <Uefi/UefiBaseType.h>
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/**
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Retrieves the key for integrity and/or confidentiality of variables.
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@param[out] VariableKey A pointer to pointer for the variable key buffer.
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@param[in,out] VariableKeySize The size in bytes of the variable key.
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@retval EFI_SUCCESS The variable key was returned.
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@retval EFI_DEVICE_ERROR An error occurred while attempting to get the variable key.
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@retval EFI_ACCESS_DENIED The function was invoked after locking the key interface.
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@retval EFI_UNSUPPORTED The variable key is not supported in the current boot configuration.
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**/
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EFI_STATUS
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EFIAPI
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GetVariableKey (
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OUT VOID **VariableKey,
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IN OUT UINTN *VariableKeySize
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);
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/**
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Regenerates the variable key.
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@retval EFI_SUCCESS The variable key was regenerated successfully.
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@retval EFI_DEVICE_ERROR An error occurred while attempting to regenerate the key.
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@retval EFI_ACCESS_DENIED The function was invoked after locking the key interface.
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@retval EFI_UNSUPPORTED Key regeneration is not supported in the current boot configuration.
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**/
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EFI_STATUS
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EFIAPI
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RegenerateVariableKey (
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VOID
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);
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/**
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Locks the regenerate key interface.
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@retval EFI_SUCCESS The key interface was locked successfully.
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@retval EFI_UNSUPPORTED Locking the key interface is not supported in the current boot configuration.
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@retval Others An error occurred while attempting to lock the key interface.
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**/
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EFI_STATUS
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EFIAPI
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LockVariableKeyInterface (
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VOID
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);
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#endif
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