[mirror_edk2.git] / SecurityPkg / Library / HashLibTpm2 / HashLibTpm2.c

/** @file\r
  This library uses TPM2 device to calculation hash.\r
\r
Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR>\r
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include <PiPei.h>\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/Tpm2CommandLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/HashLib.h>\r
#include <Library/PcdLib.h>\r
\r
typedef struct {\r
  TPM_ALG_ID AlgoId;\r
  UINT32     Mask;\r
} TPM2_HASH_MASK;\r
\r
TPM2_HASH_MASK mTpm2HashMask[] = {\r
  {TPM_ALG_SHA1,         HASH_ALG_SHA1},\r
  {TPM_ALG_SHA256,       HASH_ALG_SHA256},\r
  {TPM_ALG_SHA384,       HASH_ALG_SHA384},\r
  {TPM_ALG_SHA512,       HASH_ALG_SHA512},\r
};\r
\r
/**\r
  The function get algorith from hash mask info.\r
\r
  @return Hash algorithm\r
**/\r
TPM_ALG_ID\r
Tpm2GetAlgoFromHashMask (\r
  VOID\r
  )\r
{\r
  UINT32 HashMask;\r
  UINTN  Index;\r
\r
  HashMask = PcdGet32 (PcdTpm2HashMask);\r
  for (Index = 0; Index < sizeof(mTpm2HashMask)/sizeof(mTpm2HashMask[0]); Index++) {\r
    if (mTpm2HashMask[Index].Mask == HashMask) {\r
      return mTpm2HashMask[Index].AlgoId;\r
    }\r
  }\r
\r
  return TPM_ALG_NULL;\r
}\r
\r
/**\r
  Start hash sequence.\r
\r
  @param HashHandle Hash handle.\r
\r
  @retval EFI_SUCCESS          Hash sequence start and HandleHandle returned.\r
  @retval EFI_OUT_OF_RESOURCES No enough resource to start hash.\r
**/\r
EFI_STATUS\r
EFIAPI\r
HashStart (\r
  OUT HASH_HANDLE    *HashHandle\r
  )\r
{\r
  TPMI_DH_OBJECT        SequenceHandle;\r
  EFI_STATUS            Status;\r
  TPM_ALG_ID            AlgoId;\r
\r
  AlgoId = Tpm2GetAlgoFromHashMask ();\r
\r
  Status = Tpm2HashSequenceStart (AlgoId, &SequenceHandle);\r
  if (!EFI_ERROR (Status)) {\r
    *HashHandle = (HASH_HANDLE)SequenceHandle;\r
  }\r
  return Status;\r
}\r
\r
/**\r
  Update hash sequence data.\r
\r
  @param HashHandle    Hash handle.\r
  @param DataToHash    Data to be hashed.\r
  @param DataToHashLen Data size.\r
\r
  @retval EFI_SUCCESS     Hash sequence updated.\r
**/\r
EFI_STATUS\r
EFIAPI\r
HashUpdate (\r
  IN HASH_HANDLE    HashHandle,\r
  IN VOID           *DataToHash,\r
  IN UINTN          DataToHashLen\r
  )\r
{\r
  UINT8            *Buffer;\r
  UINT64           HashLen;\r
  TPM2B_MAX_BUFFER HashBuffer;\r
  EFI_STATUS       Status;\r
\r
  Buffer = (UINT8 *)(UINTN)DataToHash;\r
  for (HashLen = DataToHashLen; HashLen > sizeof(HashBuffer.buffer); HashLen -= sizeof(HashBuffer.buffer)) {\r
\r
    HashBuffer.size = sizeof(HashBuffer.buffer);\r
    CopyMem(HashBuffer.buffer, Buffer, sizeof(HashBuffer.buffer));\r
    Buffer += sizeof(HashBuffer.buffer);\r
\r
    Status = Tpm2SequenceUpdate((TPMI_DH_OBJECT)HashHandle, &HashBuffer);\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
  }\r
\r
  //\r
  // Last one\r
  //\r
  HashBuffer.size = (UINT16)HashLen;\r
  CopyMem(HashBuffer.buffer, Buffer, (UINTN)HashLen);\r
  Status = Tpm2SequenceUpdate((TPMI_DH_OBJECT)HashHandle, &HashBuffer);\r
  if (EFI_ERROR(Status)) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Hash sequence complete and extend to PCR.\r
\r
  @param HashHandle    Hash handle.\r
  @param PcrIndex      PCR to be extended.\r
  @param DataToHash    Data to be hashed.\r
  @param DataToHashLen Data size.\r
  @param DigestList    Digest list.\r
\r
  @retval EFI_SUCCESS     Hash sequence complete and DigestList is returned.\r
**/\r
EFI_STATUS\r
EFIAPI\r
HashCompleteAndExtend (\r
  IN HASH_HANDLE         HashHandle,\r
  IN TPMI_DH_PCR         PcrIndex,\r
  IN VOID                *DataToHash,\r
  IN UINTN               DataToHashLen,\r
  OUT TPML_DIGEST_VALUES *DigestList\r
  )\r
{\r
  UINT8            *Buffer;\r
  UINT64           HashLen;\r
  TPM2B_MAX_BUFFER HashBuffer;\r
  EFI_STATUS       Status;\r
  TPM_ALG_ID       AlgoId;\r
  TPM2B_DIGEST     Result;\r
\r
  AlgoId = Tpm2GetAlgoFromHashMask ();\r
\r
  Buffer = (UINT8 *)(UINTN)DataToHash;\r
  for (HashLen = DataToHashLen; HashLen > sizeof(HashBuffer.buffer); HashLen -= sizeof(HashBuffer.buffer)) {\r
\r
    HashBuffer.size = sizeof(HashBuffer.buffer);\r
    CopyMem(HashBuffer.buffer, Buffer, sizeof(HashBuffer.buffer));\r
    Buffer += sizeof(HashBuffer.buffer);\r
\r
    Status = Tpm2SequenceUpdate((TPMI_DH_OBJECT)HashHandle, &HashBuffer);\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
  }\r
\r
  //\r
  // Last one\r
  //\r
  HashBuffer.size = (UINT16)HashLen;\r
  CopyMem(HashBuffer.buffer, Buffer, (UINTN)HashLen);\r
\r
  ZeroMem(DigestList, sizeof(*DigestList));\r
  DigestList->count = HASH_COUNT;\r
\r
  if (AlgoId == TPM_ALG_NULL) {\r
    Status = Tpm2EventSequenceComplete (\r
               PcrIndex,\r
               (TPMI_DH_OBJECT)HashHandle,\r
               &HashBuffer,\r
               DigestList\r
               );\r
  } else {\r
    Status = Tpm2SequenceComplete (\r
               (TPMI_DH_OBJECT)HashHandle,\r
               &HashBuffer,\r
               &Result\r
               );\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
\r
    DigestList->count = 1;\r
    DigestList->digests[0].hashAlg = AlgoId;\r
    CopyMem (&DigestList->digests[0].digest, Result.buffer, Result.size);\r
    Status = Tpm2PcrExtend (\r
               PcrIndex,\r
               DigestList\r
               );\r
  }\r
  if (EFI_ERROR(Status)) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Hash data and extend to PCR.\r
\r
  @param PcrIndex      PCR to be extended.\r
  @param DataToHash    Data to be hashed.\r
  @param DataToHashLen Data size.\r
  @param DigestList    Digest list.\r
\r
  @retval EFI_SUCCESS     Hash data and DigestList is returned.\r
**/\r
EFI_STATUS\r
EFIAPI\r
HashAndExtend (\r
  IN TPMI_DH_PCR                    PcrIndex,\r
  IN VOID                           *DataToHash,\r
  IN UINTN                          DataToHashLen,\r
  OUT TPML_DIGEST_VALUES            *DigestList\r
  )\r
{\r
  EFI_STATUS         Status;\r
  UINT8              *Buffer;\r
  UINT64             HashLen;\r
  TPMI_DH_OBJECT     SequenceHandle;\r
  TPM2B_MAX_BUFFER   HashBuffer;\r
  TPM_ALG_ID         AlgoId;\r
  TPM2B_EVENT        EventData;\r
  TPM2B_DIGEST       Result;\r
\r
  DEBUG((EFI_D_VERBOSE, "\n HashAndExtend Entry \n"));\r
\r
  SequenceHandle = 0xFFFFFFFF; // Know bad value\r
\r
  AlgoId = Tpm2GetAlgoFromHashMask ();\r
\r
  if ((AlgoId == TPM_ALG_NULL) && (DataToHashLen <= sizeof(EventData.buffer))) {\r
    EventData.size = (UINT16)DataToHashLen;\r
    CopyMem (EventData.buffer, DataToHash, DataToHashLen);\r
    Status = Tpm2PcrEvent (PcrIndex, &EventData, DigestList);\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
    return EFI_SUCCESS;\r
  }\r
\r
  Status = Tpm2HashSequenceStart(AlgoId, &SequenceHandle);\r
  if (EFI_ERROR(Status)) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
  DEBUG((EFI_D_VERBOSE, "\n Tpm2HashSequenceStart Success \n"));\r
\r
  Buffer = (UINT8 *)(UINTN)DataToHash;\r
  for (HashLen = DataToHashLen; HashLen > sizeof(HashBuffer.buffer); HashLen -= sizeof(HashBuffer.buffer)) {\r
\r
    HashBuffer.size = sizeof(HashBuffer.buffer);\r
    CopyMem(HashBuffer.buffer, Buffer, sizeof(HashBuffer.buffer));\r
    Buffer += sizeof(HashBuffer.buffer);\r
\r
    Status = Tpm2SequenceUpdate(SequenceHandle, &HashBuffer);\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
  }\r
  DEBUG((EFI_D_VERBOSE, "\n Tpm2SequenceUpdate Success \n"));\r
\r
  HashBuffer.size = (UINT16)HashLen;\r
  CopyMem(HashBuffer.buffer, Buffer, (UINTN)HashLen);\r
\r
  ZeroMem(DigestList, sizeof(*DigestList));\r
  DigestList->count = HASH_COUNT;\r
\r
  if (AlgoId == TPM_ALG_NULL) {\r
    Status = Tpm2EventSequenceComplete (\r
               PcrIndex,\r
               SequenceHandle,\r
               &HashBuffer,\r
               DigestList\r
               );\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
    DEBUG((EFI_D_VERBOSE, "\n Tpm2EventSequenceComplete Success \n"));\r
  } else {\r
    Status = Tpm2SequenceComplete (\r
               SequenceHandle,\r
               &HashBuffer,\r
               &Result\r
               );\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
    DEBUG((EFI_D_VERBOSE, "\n Tpm2SequenceComplete Success \n"));\r
\r
    DigestList->count = 1;\r
    DigestList->digests[0].hashAlg = AlgoId;\r
    CopyMem (&DigestList->digests[0].digest, Result.buffer, Result.size);\r
    Status = Tpm2PcrExtend (\r
               PcrIndex,\r
               DigestList\r
               );\r
    if (EFI_ERROR(Status)) {\r
      return EFI_DEVICE_ERROR;\r
    }\r
    DEBUG((EFI_D_VERBOSE, "\n Tpm2PcrExtend Success \n"));\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  This service register Hash.\r
\r
  @param HashInterface  Hash interface\r
\r
  @retval EFI_SUCCESS          This hash interface is registered successfully.\r
  @retval EFI_UNSUPPORTED      System does not support register this interface.\r
  @retval EFI_ALREADY_STARTED  System already register this interface.\r
**/\r
EFI_STATUS\r
EFIAPI\r
RegisterHashInterfaceLib (\r
  IN HASH_INTERFACE   *HashInterface\r
  )\r
{\r
  return EFI_UNSUPPORTED;\r
}\r
Commit	Line	Data
c1d93242	1	/** @file\r
07309c3d	2	This library uses TPM2 device to calculation hash.\r
c1d93242	3	\r
b3548d32	4	Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR>\r
6aaac383	5	(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>\r
c1d93242 JY	6	This program and the accompanying materials\r
	7	are licensed and made available under the terms and conditions of the BSD License\r
	8	which accompanies this distribution. The full text of the license may be found at\r
	9	http://opensource.org/licenses/bsd-license.php\r
	10	\r
	11	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	12	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	13	\r
	14	**/\r
	15	\r
	16	#include <PiPei.h>\r
	17	#include <Library/BaseLib.h>\r
	18	#include <Library/BaseMemoryLib.h>\r
	19	#include <Library/Tpm2CommandLib.h>\r
	20	#include <Library/DebugLib.h>\r
	21	#include <Library/MemoryAllocationLib.h>\r
	22	#include <Library/HashLib.h>\r
	23	#include <Library/PcdLib.h>\r
c1d93242 JY	24	\r
	25	typedef struct {\r
	26	TPM_ALG_ID AlgoId;\r
	27	UINT32 Mask;\r
	28	} TPM2_HASH_MASK;\r
	29	\r
	30	TPM2_HASH_MASK mTpm2HashMask[] = {\r
1abfa4ce JY	31	{TPM_ALG_SHA1, HASH_ALG_SHA1},\r
	32	{TPM_ALG_SHA256, HASH_ALG_SHA256},\r
	33	{TPM_ALG_SHA384, HASH_ALG_SHA384},\r
	34	{TPM_ALG_SHA512, HASH_ALG_SHA512},\r
c1d93242 JY	35	};\r
	36	\r
	37	/**\r
	38	The function get algorith from hash mask info.\r
	39	\r
	40	@return Hash algorithm\r
	41	**/\r
	42	TPM_ALG_ID\r
	43	Tpm2GetAlgoFromHashMask (\r
	44	VOID\r
	45	)\r
	46	{\r
	47	UINT32 HashMask;\r
	48	UINTN Index;\r
	49	\r
	50	HashMask = PcdGet32 (PcdTpm2HashMask);\r
	51	for (Index = 0; Index < sizeof(mTpm2HashMask)/sizeof(mTpm2HashMask[0]); Index++) {\r
	52	if (mTpm2HashMask[Index].Mask == HashMask) {\r
	53	return mTpm2HashMask[Index].AlgoId;\r
	54	}\r
	55	}\r
	56	\r
	57	return TPM_ALG_NULL;\r
	58	}\r
	59	\r
	60	/**\r
	61	Start hash sequence.\r
	62	\r
	63	@param HashHandle Hash handle.\r
	64	\r
	65	@retval EFI_SUCCESS Hash sequence start and HandleHandle returned.\r
	66	@retval EFI_OUT_OF_RESOURCES No enough resource to start hash.\r
	67	**/\r
	68	EFI_STATUS\r
	69	EFIAPI\r
	70	HashStart (\r
	71	OUT HASH_HANDLE *HashHandle\r
	72	)\r
	73	{\r
	74	TPMI_DH_OBJECT SequenceHandle;\r
	75	EFI_STATUS Status;\r
	76	TPM_ALG_ID AlgoId;\r
	77	\r
	78	AlgoId = Tpm2GetAlgoFromHashMask ();\r
	79	\r
	80	Status = Tpm2HashSequenceStart (AlgoId, &SequenceHandle);\r
	81	if (!EFI_ERROR (Status)) {\r
	82	*HashHandle = (HASH_HANDLE)SequenceHandle;\r
	83	}\r
	84	return Status;\r
	85	}\r
	86	\r
	87	/**\r
	88	Update hash sequence data.\r
	89	\r
	90	@param HashHandle Hash handle.\r
	91	@param DataToHash Data to be hashed.\r
	92	@param DataToHashLen Data size.\r
	93	\r
	94	@retval EFI_SUCCESS Hash sequence updated.\r
	95	**/\r
	96	EFI_STATUS\r
	97	EFIAPI\r
	98	HashUpdate (\r
99	IN HASH_HANDLE HashHandle,\r
100	IN VOID *DataToHash,\r
101	IN UINTN DataToHashLen\r
102	)\r
103	{\r
104	UINT8 *Buffer;\r
105	UINT64 HashLen;\r
106	TPM2B_MAX_BUFFER HashBuffer;\r
107	EFI_STATUS Status;\r
108	\r
109	Buffer = (UINT8 *)(UINTN)DataToHash;\r
110	for (HashLen = DataToHashLen; HashLen > sizeof(HashBuffer.buffer); HashLen -= sizeof(HashBuffer.buffer)) {\r
111	\r
112	HashBuffer.size = sizeof(HashBuffer.buffer);\r
113	CopyMem(HashBuffer.buffer, Buffer, sizeof(HashBuffer.buffer));\r
114	Buffer += sizeof(HashBuffer.buffer);\r
115	\r
116	Status = Tpm2SequenceUpdate((TPMI_DH_OBJECT)HashHandle, &HashBuffer);\r
117	if (EFI_ERROR(Status)) {\r
118	return EFI_DEVICE_ERROR;\r
119	}\r
120	}\r
121	\r
122	//\r
123	// Last one\r
124	//\r
125	HashBuffer.size = (UINT16)HashLen;\r
126	CopyMem(HashBuffer.buffer, Buffer, (UINTN)HashLen);\r
127	Status = Tpm2SequenceUpdate((TPMI_DH_OBJECT)HashHandle, &HashBuffer);\r
128	if (EFI_ERROR(Status)) {\r
129	return EFI_DEVICE_ERROR;\r
130	}\r
131	\r
132	return EFI_SUCCESS;\r
133	}\r
134	\r
135	/**\r
136	Hash sequence complete and extend to PCR.\r
137	\r
138	@param HashHandle Hash handle.\r
139	@param PcrIndex PCR to be extended.\r
140	@param DataToHash Data to be hashed.\r
141	@param DataToHashLen Data size.\r
142	@param DigestList Digest list.\r
143	\r
144	@retval EFI_SUCCESS Hash sequence complete and DigestList is returned.\r
145	**/\r
146	EFI_STATUS\r
147	EFIAPI\r
148	HashCompleteAndExtend (\r
149	IN HASH_HANDLE HashHandle,\r
150	IN TPMI_DH_PCR PcrIndex,\r
151	IN VOID *DataToHash,\r
152	IN UINTN DataToHashLen,\r
153	OUT TPML_DIGEST_VALUES *DigestList\r
154	)\r
155	{\r
156	UINT8 *Buffer;\r
157	UINT64 HashLen;\r
158	TPM2B_MAX_BUFFER HashBuffer;\r
159	EFI_STATUS Status;\r
160	TPM_ALG_ID AlgoId;\r
161	TPM2B_DIGEST Result;\r
162	\r
163	AlgoId = Tpm2GetAlgoFromHashMask ();\r
164	\r
165	Buffer = (UINT8 *)(UINTN)DataToHash;\r
166	for (HashLen = DataToHashLen; HashLen > sizeof(HashBuffer.buffer); HashLen -= sizeof(HashBuffer.buffer)) {\r
167	\r
168	HashBuffer.size = sizeof(HashBuffer.buffer);\r
169	CopyMem(HashBuffer.buffer, Buffer, sizeof(HashBuffer.buffer));\r
170	Buffer += sizeof(HashBuffer.buffer);\r
171	\r
172	Status = Tpm2SequenceUpdate((TPMI_DH_OBJECT)HashHandle, &HashBuffer);\r
173	if (EFI_ERROR(Status)) {\r
174	return EFI_DEVICE_ERROR;\r
175	}\r
176	}\r
177	\r
178	//\r
179	// Last one\r
180	//\r
181	HashBuffer.size = (UINT16)HashLen;\r
182	CopyMem(HashBuffer.buffer, Buffer, (UINTN)HashLen);\r
183	\r
184	ZeroMem(DigestList, sizeof(*DigestList));\r
185	DigestList->count = HASH_COUNT;\r
186	\r
187	if (AlgoId == TPM_ALG_NULL) {\r
188	Status = Tpm2EventSequenceComplete (\r
189	PcrIndex,\r
190	(TPMI_DH_OBJECT)HashHandle,\r
191	&HashBuffer,\r
192	DigestList\r
193	);\r
194	} else {\r
195	Status = Tpm2SequenceComplete (\r
196	(TPMI_DH_OBJECT)HashHandle,\r
197	&HashBuffer,\r
198	&Result\r
199	);\r
200	if (EFI_ERROR(Status)) {\r
201	return EFI_DEVICE_ERROR;\r
202	}\r
203	\r
204	DigestList->count = 1;\r
205	DigestList->digests[0].hashAlg = AlgoId;\r
206	CopyMem (&DigestList->digests[0].digest, Result.buffer, Result.size);\r
207	Status = Tpm2PcrExtend (\r
208	PcrIndex,\r
209	DigestList\r
210	);\r
211	}\r
212	if (EFI_ERROR(Status)) {\r
213	return EFI_DEVICE_ERROR;\r
214	}\r
215	return EFI_SUCCESS;\r
216	}\r
217	\r
218	/**\r
219	Hash data and extend to PCR.\r
220	\r
221	@param PcrIndex PCR to be extended.\r
222	@param DataToHash Data to be hashed.\r
223	@param DataToHashLen Data size.\r
224	@param DigestList Digest list.\r
225	\r
226	@retval EFI_SUCCESS Hash data and DigestList is returned.\r
227	**/\r
228	EFI_STATUS\r
229	EFIAPI\r
230	HashAndExtend (\r
231	IN TPMI_DH_PCR PcrIndex,\r
232	IN VOID *DataToHash,\r
233	IN UINTN DataToHashLen,\r
234	OUT TPML_DIGEST_VALUES *DigestList\r
235	)\r
236	{\r
237	EFI_STATUS Status;\r
238	UINT8 *Buffer;\r
239	UINT64 HashLen;\r
240	TPMI_DH_OBJECT SequenceHandle;\r
241	TPM2B_MAX_BUFFER HashBuffer;\r
242	TPM_ALG_ID AlgoId;\r
243	TPM2B_EVENT EventData;\r
244	TPM2B_DIGEST Result;\r
245	\r
6aaac383	246	DEBUG((EFI_D_VERBOSE, "\n HashAndExtend Entry \n"));\r
c1d93242 JY	247	\r
	248	SequenceHandle = 0xFFFFFFFF; // Know bad value\r
	249	\r
	250	AlgoId = Tpm2GetAlgoFromHashMask ();\r
	251	\r
	252	if ((AlgoId == TPM_ALG_NULL) && (DataToHashLen <= sizeof(EventData.buffer))) {\r
	253	EventData.size = (UINT16)DataToHashLen;\r
	254	CopyMem (EventData.buffer, DataToHash, DataToHashLen);\r
	255	Status = Tpm2PcrEvent (PcrIndex, &EventData, DigestList);\r
	256	if (EFI_ERROR(Status)) {\r
	257	return EFI_DEVICE_ERROR;\r
	258	}\r
	259	return EFI_SUCCESS;\r
	260	}\r
	261	\r
	262	Status = Tpm2HashSequenceStart(AlgoId, &SequenceHandle);\r
	263	if (EFI_ERROR(Status)) {\r
	264	return EFI_DEVICE_ERROR;\r
	265	}\r
6aaac383	266	DEBUG((EFI_D_VERBOSE, "\n Tpm2HashSequenceStart Success \n"));\r
c1d93242 JY	267	\r
	268	Buffer = (UINT8 *)(UINTN)DataToHash;\r
	269	for (HashLen = DataToHashLen; HashLen > sizeof(HashBuffer.buffer); HashLen -= sizeof(HashBuffer.buffer)) {\r
	270	\r
	271	HashBuffer.size = sizeof(HashBuffer.buffer);\r
	272	CopyMem(HashBuffer.buffer, Buffer, sizeof(HashBuffer.buffer));\r
	273	Buffer += sizeof(HashBuffer.buffer);\r
	274	\r
	275	Status = Tpm2SequenceUpdate(SequenceHandle, &HashBuffer);\r
	276	if (EFI_ERROR(Status)) {\r
	277	return EFI_DEVICE_ERROR;\r
	278	}\r
	279	}\r
6aaac383	280	DEBUG((EFI_D_VERBOSE, "\n Tpm2SequenceUpdate Success \n"));\r
c1d93242 JY	281	\r
	282	HashBuffer.size = (UINT16)HashLen;\r
	283	CopyMem(HashBuffer.buffer, Buffer, (UINTN)HashLen);\r
	284	\r
	285	ZeroMem(DigestList, sizeof(*DigestList));\r
	286	DigestList->count = HASH_COUNT;\r
	287	\r
	288	if (AlgoId == TPM_ALG_NULL) {\r
	289	Status = Tpm2EventSequenceComplete (\r
	290	PcrIndex,\r
	291	SequenceHandle,\r
	292	&HashBuffer,\r
	293	DigestList\r
	294	);\r
	295	if (EFI_ERROR(Status)) {\r
	296	return EFI_DEVICE_ERROR;\r
	297	}\r
6aaac383	298	DEBUG((EFI_D_VERBOSE, "\n Tpm2EventSequenceComplete Success \n"));\r
c1d93242 JY	299	} else {\r
	300	Status = Tpm2SequenceComplete (\r
	301	SequenceHandle,\r
	302	&HashBuffer,\r
	303	&Result\r
	304	);\r
	305	if (EFI_ERROR(Status)) {\r
	306	return EFI_DEVICE_ERROR;\r
	307	}\r
6aaac383	308	DEBUG((EFI_D_VERBOSE, "\n Tpm2SequenceComplete Success \n"));\r
c1d93242 JY	309	\r
	310	DigestList->count = 1;\r
	311	DigestList->digests[0].hashAlg = AlgoId;\r
	312	CopyMem (&DigestList->digests[0].digest, Result.buffer, Result.size);\r
	313	Status = Tpm2PcrExtend (\r
	314	PcrIndex,\r
	315	DigestList\r
	316	);\r
	317	if (EFI_ERROR(Status)) {\r
	318	return EFI_DEVICE_ERROR;\r
	319	}\r
6aaac383	320	DEBUG((EFI_D_VERBOSE, "\n Tpm2PcrExtend Success \n"));\r
c1d93242 JY	321	}\r
	322	\r
	323	return EFI_SUCCESS;\r
	324	}\r
	325	\r
	326	/**\r
	327	This service register Hash.\r
	328	\r
	329	@param HashInterface Hash interface\r
	330	\r
	331	@retval EFI_SUCCESS This hash interface is registered successfully.\r
	332	@retval EFI_UNSUPPORTED System does not support register this interface.\r
	333	@retval EFI_ALREADY_STARTED System already register this interface.\r
	334	**/\r
	335	EFI_STATUS\r
	336	EFIAPI\r
	337	RegisterHashInterfaceLib (\r
	338	IN HASH_INTERFACE *HashInterface\r
	339	)\r
	340	{\r
	341	return EFI_UNSUPPORTED;\r
b3548d32	342	}\r