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