mirror of https://github.com/acidanthera/audk.git
170 lines
4.4 KiB
C
170 lines
4.4 KiB
C
/** @file
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Ihis library abstract TPM2 hash calculation.
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The platform can choose multiply hash, while caller just need invoke these API.
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Then all hash value will be returned and/or extended.
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Copyright (c) 2013, Intel Corporation. All rights reserved. <BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _HASH_LIB_H_
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#define _HASH_LIB_H_
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#include <Uefi.h>
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#include <Protocol/Hash.h>
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typedef UINTN HASH_HANDLE;
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/**
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Start hash sequence.
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@param HashHandle Hash handle.
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@retval EFI_SUCCESS Hash sequence start and HandleHandle returned.
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@retval EFI_OUT_OF_RESOURCES No enough resource to start hash.
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**/
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EFI_STATUS
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EFIAPI
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HashStart (
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OUT HASH_HANDLE *HashHandle
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);
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/**
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Update hash sequence data.
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@param HashHandle Hash handle.
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@param DataToHash Data to be hashed.
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@param DataToHashLen Data size.
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@retval EFI_SUCCESS Hash sequence updated.
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**/
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EFI_STATUS
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EFIAPI
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HashUpdate (
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IN HASH_HANDLE HashHandle,
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IN VOID *DataToHash,
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IN UINTN DataToHashLen
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);
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/**
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Hash sequence complete and extend to PCR.
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@param HashHandle Hash handle.
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@param PcrIndex PCR to be extended.
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@param DataToHash Data to be hashed.
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@param DataToHashLen Data size.
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@param DigestList Digest list.
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@retval EFI_SUCCESS Hash sequence complete and DigestList is returned.
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**/
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EFI_STATUS
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EFIAPI
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HashCompleteAndExtend (
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IN HASH_HANDLE HashHandle,
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IN TPMI_DH_PCR PcrIndex,
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IN VOID *DataToHash,
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IN UINTN DataToHashLen,
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OUT TPML_DIGEST_VALUES *DigestList
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);
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/**
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Hash data and extend to PCR.
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@param PcrIndex PCR to be extended.
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@param DataToHash Data to be hashed.
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@param DataToHashLen Data size.
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@param DigestList Digest list.
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@retval EFI_SUCCESS Hash data and DigestList is returned.
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**/
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EFI_STATUS
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EFIAPI
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HashAndExtend (
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IN TPMI_DH_PCR PcrIndex,
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IN VOID *DataToHash,
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IN UINTN DataToHashLen,
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OUT TPML_DIGEST_VALUES *DigestList
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);
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/**
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Start hash sequence.
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@param HashHandle Hash handle.
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@retval EFI_SUCCESS Hash sequence start and HandleHandle returned.
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@retval EFI_OUT_OF_RESOURCES No enough resource to start hash.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *HASH_INIT) (
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OUT HASH_HANDLE *HashHandle
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);
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/**
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Update hash sequence data.
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@param HashHandle Hash handle.
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@param DataToHash Data to be hashed.
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@param DataToHashLen Data size.
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@retval EFI_SUCCESS Hash sequence updated.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *HASH_UPDATE) (
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IN HASH_HANDLE HashHandle,
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IN VOID *DataToHash,
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IN UINTN DataToHashLen
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);
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/**
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Complete hash sequence complete.
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@param HashHandle Hash handle.
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@param DigestList Digest list.
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@retval EFI_SUCCESS Hash sequence complete and DigestList is returned.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *HASH_FINAL) (
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IN HASH_HANDLE HashHandle,
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OUT TPML_DIGEST_VALUES *DigestList
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);
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#define HASH_ALGORITHM_SHA1_GUID EFI_HASH_ALGORITHM_SHA1_GUID
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#define HASH_ALGORITHM_SHA256_GUID EFI_HASH_ALGORITHM_SHA256_GUID
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#define HASH_ALGORITHM_SHA384_GUID EFI_HASH_ALGORITHM_SHA384_GUID
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#define HASH_ALGORITHM_SHA512_GUID EFI_HASH_ALGORITHM_SHA512_GUID
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typedef struct {
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EFI_GUID HashGuid;
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HASH_INIT HashInit;
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HASH_UPDATE HashUpdate;
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HASH_FINAL HashFinal;
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} HASH_INTERFACE;
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/**
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This service register Hash.
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@param HashInterface Hash interface
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@retval EFI_SUCCESS This hash interface is registered successfully.
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@retval EFI_UNSUPPORTED System does not support register this interface.
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@retval EFI_ALREADY_STARTED System already register this interface.
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**/
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EFI_STATUS
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EFIAPI
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RegisterHashInterfaceLib (
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IN HASH_INTERFACE *HashInterface
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);
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#endif
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