1c837cd545
This includes: * LockBox protocol definition * LockBoxLib library interface definition * SmmLockBox GUID * LockBoxNullLib library implementation * 2 SmmLockBoxLib library implementations * SmmLockBox SMM driver Signed-off-by: jljusten Reviewed-by: mdkinney Reviewed-by: geekboy15a Reviewed-by: jyao1 Reviewed-by: lgao4 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12029 6f19259b-4bc3-4df7-8a09-765794883524
134 lines
5.4 KiB
C
134 lines
5.4 KiB
C
/** @file
|
|
This library is only intended to be used by DXE modules that need save
|
|
confidential information to LockBox and get it by PEI modules in S3 phase.
|
|
|
|
Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
|
|
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions
|
|
of the BSD License which accompanies this distribution. The
|
|
full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#ifndef _LOCK_BOX_LIB_H_
|
|
#define _LOCK_BOX_LIB_H_
|
|
|
|
/**
|
|
This function will save confidential information to lockbox.
|
|
|
|
@param Guid the guid to identify the confidential information
|
|
@param Buffer the address of the confidential information
|
|
@param Length the length of the confidential information
|
|
|
|
@retval RETURN_SUCCESS the information is saved successfully.
|
|
@retval RETURN_INVALID_PARAMETER the Guid is NULL, or Buffer is NULL, or Length is 0
|
|
@retval RETURN_ALREADY_STARTED the requested GUID already exist.
|
|
@retval RETURN_OUT_OF_RESOURCES no enough resource to save the information.
|
|
@retval RETURN_ACCESS_DENIED it is too late to invoke this interface
|
|
@retval RETURN_NOT_STARTED it is too early to invoke this interface
|
|
@retval RETURN_UNSUPPORTED the service is not supported by implementaion.
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SaveLockBox (
|
|
IN GUID *Guid,
|
|
IN VOID *Buffer,
|
|
IN UINTN Length
|
|
);
|
|
|
|
/**
|
|
This function will set lockbox attributes.
|
|
|
|
@param Guid the guid to identify the confidential information
|
|
@param Attributes the attributes of the lockbox
|
|
|
|
@retval RETURN_SUCCESS the information is saved successfully.
|
|
@retval RETURN_INVALID_PARAMETER attributes is invalid.
|
|
@retval RETURN_NOT_FOUND the requested GUID not found.
|
|
@retval RETURN_ACCESS_DENIED it is too late to invoke this interface
|
|
@retval RETURN_NOT_STARTED it is too early to invoke this interface
|
|
@retval RETURN_UNSUPPORTED the service is not supported by implementaion.
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SetLockBoxAttributes (
|
|
IN GUID *Guid,
|
|
IN UINT64 Attributes
|
|
);
|
|
|
|
//
|
|
// With this flag, this LockBox can be restored to this Buffer with RestoreAllLockBoxInPlace()
|
|
//
|
|
#define LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE BIT0
|
|
|
|
/**
|
|
This function will update confidential information to lockbox.
|
|
|
|
@param Guid the guid to identify the original confidential information
|
|
@param Offset the offset of the original confidential information
|
|
@param Buffer the address of the updated confidential information
|
|
@param Length the length of the updated confidential information
|
|
|
|
@retval RETURN_SUCCESS the information is saved successfully.
|
|
@retval RETURN_INVALID_PARAMETER the Guid is NULL, or Buffer is NULL, or Length is 0.
|
|
@retval RETURN_NOT_FOUND the requested GUID not found.
|
|
@retval RETURN_BUFFER_TOO_SMALL the original buffer to too small to hold new information.
|
|
@retval RETURN_ACCESS_DENIED it is too late to invoke this interface
|
|
@retval RETURN_NOT_STARTED it is too early to invoke this interface
|
|
@retval RETURN_UNSUPPORTED the service is not supported by implementaion.
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
UpdateLockBox (
|
|
IN GUID *Guid,
|
|
IN UINTN Offset,
|
|
IN VOID *Buffer,
|
|
IN UINTN Length
|
|
);
|
|
|
|
/**
|
|
This function will restore confidential information from lockbox.
|
|
|
|
@param Guid the guid to identify the confidential information
|
|
@param Buffer the address of the restored confidential information
|
|
NULL means restored to original address, Length MUST be NULL at same time.
|
|
@param Length the length of the restored confidential information
|
|
|
|
@retval RETURN_SUCCESS the information is restored successfully.
|
|
@retval RETURN_INVALID_PARAMETER the Guid is NULL, or one of Buffer and Length is NULL.
|
|
@retval RETURN_WRITE_PROTECTED Buffer and Length are NULL, but the LockBox has no
|
|
LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE attribute.
|
|
@retval RETURN_BUFFER_TOO_SMALL the Length is too small to hold the confidential information.
|
|
@retval RETURN_NOT_FOUND the requested GUID not found.
|
|
@retval RETURN_NOT_STARTED it is too early to invoke this interface
|
|
@retval RETURN_ACCESS_DENIED not allow to restore to the address
|
|
@retval RETURN_UNSUPPORTED the service is not supported by implementaion.
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
RestoreLockBox (
|
|
IN GUID *Guid,
|
|
IN VOID *Buffer, OPTIONAL
|
|
IN OUT UINTN *Length OPTIONAL
|
|
);
|
|
|
|
/**
|
|
This function will restore confidential information from all lockbox which have RestoreInPlace attribute.
|
|
|
|
@retval RETURN_SUCCESS the information is restored successfully.
|
|
@retval RETURN_NOT_STARTED it is too early to invoke this interface
|
|
@retval RETURN_UNSUPPORTED the service is not supported by implementaion.
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
RestoreAllLockBoxInPlace (
|
|
VOID
|
|
);
|
|
|
|
#endif
|