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SecurityPkg: add null version of VariableKeyLib

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2594

Add null version of VariableKeyLib instance. The full version should be
provided by platforms which supports key generator.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Cc: Nishant C Mistry <nishant.c.mistry@intel.com>
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Michael Kubacki <michael.kubacki@microsoft.com>
This commit is contained in:
Jian J Wang
2020-03-12 13:44:41 +08:00
committed by mergify[bot]
parent d21c2cd082
commit 6e9bd495b3
3 changed files with 102 additions and 0 deletions
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67
SecurityPkg/Library/VariableKeyLibNull/VariableKeyLibNull.c Normal file
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/** @file
Null version of VariableKeyLib for build purpose. Don't use it in real product.
Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/DebugLib.h>
#include <Library/VariableKeyLib.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
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
/**
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
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
/**
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
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}