MdePkg/Include/Protocol/TcgService.h - edk2 - Git at Google

 /** @file
   TCG Service Protocol as defined in TCG_EFI_Protocol_1_22_Final
   See http://trustedcomputinggroup.org for the latest specification

 Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent

 **/

 #ifndef _TCG_SERVICE_PROTOCOL_H_
 #define _TCG_SERVICE_PROTOCOL_H_

 #include <IndustryStandard/UefiTcgPlatform.h>

 #define EFI_TCG_PROTOCOL_GUID  \
   {0xf541796d, 0xa62e, 0x4954, { 0xa7, 0x75, 0x95, 0x84, 0xf6, 0x1b, 0x9c, 0xdd } }

 typedef struct _EFI_TCG_PROTOCOL EFI_TCG_PROTOCOL;

 typedef struct {
   UINT8    Major;
   UINT8    Minor;
   UINT8    RevMajor;
   UINT8    RevMinor;
 } TCG_VERSION;

 typedef struct _TCG_EFI_BOOT_SERVICE_CAPABILITY {
   UINT8          Size;                /// Size of this structure.
   TCG_VERSION    StructureVersion;
   TCG_VERSION    ProtocolSpecVersion;
   UINT8          HashAlgorithmBitmap; /// Hash algorithms .
                                       /// This protocol is capable of : 01=SHA-1.
   BOOLEAN        TPMPresentFlag;      /// 00h = TPM not present.
   BOOLEAN        TPMDeactivatedFlag;  /// 01h = TPM currently deactivated.
 } TCG_EFI_BOOT_SERVICE_CAPABILITY;

 typedef UINT32 TCG_ALGORITHM_ID;

 /**
   This service provides EFI protocol capability information, state information
   about the TPM, and Event Log state information.

   @param  This                   Indicates the calling context
   @param  ProtocolCapability     The callee allocates memory for a TCG_BOOT_SERVICE_CAPABILITY
                                  structure and fills in the fields with the EFI protocol
                                  capability information and the current TPM state information.
   @param  TCGFeatureFlags        This is a pointer to the feature flags. No feature
                                  flags are currently defined so this parameter
                                  MUST be set to 0. However, in the future,
                                  feature flags may be defined that, for example,
                                  enable hash algorithm agility.
   @param  EventLogLocation       This is a pointer to the address of the event log in memory.
   @param  EventLogLastEntry      If the Event Log contains more than one entry,
                                  this is a pointer to the address of the start of
                                  the last entry in the event log in memory.

   @retval EFI_SUCCESS            The operation completed successfully.
   @retval EFI_INVALID_PARAMETER  ProtocolCapability does not match TCG capability.
 **/
 typedef
 EFI_STATUS
 (EFIAPI *EFI_TCG_STATUS_CHECK)(
   IN      EFI_TCG_PROTOCOL          *This,
   OUT     TCG_EFI_BOOT_SERVICE_CAPABILITY
   *ProtocolCapability,
   OUT     UINT32                    *TCGFeatureFlags,
   OUT     EFI_PHYSICAL_ADDRESS      *EventLogLocation,
   OUT     EFI_PHYSICAL_ADDRESS      *EventLogLastEntry
   );

 /**
   This service abstracts the capability to do a hash operation on a data buffer.

   @param  This                   Indicates the calling context.
   @param  HashData               The pointer to the data buffer to be hashed.
   @param  HashDataLen            The length of the data buffer to be hashed.
   @param  AlgorithmId            Identification of the Algorithm to use for the hashing operation.
   @param  HashedDataLen          Resultant length of the hashed data.
   @param  HashedDataResult       Resultant buffer of the hashed data.

   @retval EFI_SUCCESS            The operation completed successfully.
   @retval EFI_INVALID_PARAMETER  HashDataLen is NULL.
   @retval EFI_INVALID_PARAMETER  HashDataLenResult is NULL.
   @retval EFI_OUT_OF_RESOURCES   Cannot allocate buffer of size *HashedDataLen.
   @retval EFI_UNSUPPORTED        AlgorithmId not supported.
   @retval EFI_BUFFER_TOO_SMALL   *HashedDataLen < sizeof (TCG_DIGEST).
 **/
 typedef
 EFI_STATUS
 (EFIAPI *EFI_TCG_HASH_ALL)(
   IN      EFI_TCG_PROTOCOL          *This,
   IN      UINT8                     *HashData,
   IN      UINT64                    HashDataLen,
   IN      TCG_ALGORITHM_ID          AlgorithmId,
   IN OUT  UINT64                    *HashedDataLen,
   IN OUT  UINT8                     **HashedDataResult
   );

 /**
   This service abstracts the capability to add an entry to the Event Log.

   @param  This                   Indicates the calling context
   @param  TCGLogData             The pointer to the start of the data buffer containing
                                  the TCG_PCR_EVENT data structure. All fields in
                                  this structure are properly filled by the caller.
   @param  EventNumber            The event number of the event just logged.
   @param  Flags                  Indicates additional flags. Only one flag has been
                                  defined at this time, which is 0x01 and means the
                                  extend operation should not be performed. All
                                  other bits are reserved.

   @retval EFI_SUCCESS            The operation completed successfully.
   @retval EFI_OUT_OF_RESOURCES   Insufficient memory in the event log to complete this action.
 **/
 typedef
 EFI_STATUS
 (EFIAPI *EFI_TCG_LOG_EVENT)(
   IN      EFI_TCG_PROTOCOL          *This,
   IN      TCG_PCR_EVENT             *TCGLogData,
   IN OUT  UINT32                    *EventNumber,
   IN      UINT32                    Flags
   );

 /**
   This service is a proxy for commands to the TPM.

   @param  This                        Indicates the calling context.
   @param  TpmInputParameterBlockSize  Size of the TPM input parameter block.
   @param  TpmInputParameterBlock      The pointer to the TPM input parameter block.
   @param  TpmOutputParameterBlockSize Size of the TPM output parameter block.
   @param  TpmOutputParameterBlock     The pointer to the TPM output parameter block.

   @retval EFI_SUCCESS            The operation completed successfully.
   @retval EFI_INVALID_PARAMETER  Invalid ordinal.
   @retval EFI_UNSUPPORTED        Current Task Priority Level  >= EFI_TPL_CALLBACK.
   @retval EFI_TIMEOUT            The TIS timed-out.
 **/
 typedef
 EFI_STATUS
 (EFIAPI *EFI_TCG_PASS_THROUGH_TO_TPM)(
   IN      EFI_TCG_PROTOCOL          *This,
   IN      UINT32                    TpmInputParameterBlockSize,
   IN      UINT8                     *TpmInputParameterBlock,
   IN      UINT32                    TpmOutputParameterBlockSize,
   IN      UINT8                     *TpmOutputParameterBlock
   );

 /**
   This service abstracts the capability to do a hash operation on a data buffer, extend a specific TPM PCR with the hash result, and add an entry to the Event Log

   @param  This                   Indicates the calling context
   @param  HashData               The physical address of the start of the data buffer
                                  to be hashed, extended, and logged.
   @param  HashDataLen            The length, in bytes, of the buffer referenced by HashData
   @param  AlgorithmId            Identification of the Algorithm to use for the hashing operation
   @param  TCGLogData             The physical address of the start of the data
                                  buffer containing the TCG_PCR_EVENT data structure.
   @param  EventNumber            The event number of the event just logged.
   @param  EventLogLastEntry      The physical address of the first byte of the entry
                                  just placed in the Event Log. If the Event Log was
                                  empty when this function was called then this physical
                                  address will be the same as the physical address of
                                  the start of the Event Log.

   @retval EFI_SUCCESS            The operation completed successfully.
   @retval EFI_UNSUPPORTED        AlgorithmId != TPM_ALG_SHA.
   @retval EFI_UNSUPPORTED        Current TPL >= EFI_TPL_CALLBACK.
   @retval EFI_DEVICE_ERROR       The command was unsuccessful.
 **/
 typedef
 EFI_STATUS
 (EFIAPI *EFI_TCG_HASH_LOG_EXTEND_EVENT)(
   IN      EFI_TCG_PROTOCOL          *This,
   IN      EFI_PHYSICAL_ADDRESS      HashData,
   IN      UINT64                    HashDataLen,
   IN      TCG_ALGORITHM_ID          AlgorithmId,
   IN OUT  TCG_PCR_EVENT             *TCGLogData,
   IN OUT  UINT32                    *EventNumber,
   OUT  EFI_PHYSICAL_ADDRESS      *EventLogLastEntry
   );

 ///
 /// The EFI_TCG Protocol abstracts TCG activity.
 ///
 struct _EFI_TCG_PROTOCOL {
   EFI_TCG_STATUS_CHECK             StatusCheck;
   EFI_TCG_HASH_ALL                 HashAll;
   EFI_TCG_LOG_EVENT                LogEvent;
   EFI_TCG_PASS_THROUGH_TO_TPM      PassThroughToTpm;
   EFI_TCG_HASH_LOG_EXTEND_EVENT    HashLogExtendEvent;
 };

 extern EFI_GUID  gEfiTcgProtocolGuid;

 #endif
	/** @file
	TCG Service Protocol as defined in TCG_EFI_Protocol_1_22_Final
	See http://trustedcomputinggroup.org for the latest specification

	Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
	SPDX-License-Identifier: BSD-2-Clause-Patent

	**/

	#ifndef _TCG_SERVICE_PROTOCOL_H_
	#define _TCG_SERVICE_PROTOCOL_H_

	#include <IndustryStandard/UefiTcgPlatform.h>

	#define EFI_TCG_PROTOCOL_GUID \
	{0xf541796d, 0xa62e, 0x4954, { 0xa7, 0x75, 0x95, 0x84, 0xf6, 0x1b, 0x9c, 0xdd } }

	typedef struct _EFI_TCG_PROTOCOL EFI_TCG_PROTOCOL;

	typedef struct {
	UINT8 Major;
	UINT8 Minor;
	UINT8 RevMajor;
	UINT8 RevMinor;
	} TCG_VERSION;

	typedef struct _TCG_EFI_BOOT_SERVICE_CAPABILITY {
	UINT8 Size; /// Size of this structure.
	TCG_VERSION StructureVersion;
	TCG_VERSION ProtocolSpecVersion;
	UINT8 HashAlgorithmBitmap; /// Hash algorithms .
	/// This protocol is capable of : 01=SHA-1.
	BOOLEAN TPMPresentFlag; /// 00h = TPM not present.
	BOOLEAN TPMDeactivatedFlag; /// 01h = TPM currently deactivated.
	} TCG_EFI_BOOT_SERVICE_CAPABILITY;

	typedef UINT32 TCG_ALGORITHM_ID;

	/**
	This service provides EFI protocol capability information, state information
	about the TPM, and Event Log state information.

	@param This Indicates the calling context
	@param ProtocolCapability The callee allocates memory for a TCG_BOOT_SERVICE_CAPABILITY
	structure and fills in the fields with the EFI protocol
	capability information and the current TPM state information.
	@param TCGFeatureFlags This is a pointer to the feature flags. No feature
	flags are currently defined so this parameter
	MUST be set to 0. However, in the future,
	feature flags may be defined that, for example,
	enable hash algorithm agility.
	@param EventLogLocation This is a pointer to the address of the event log in memory.
	@param EventLogLastEntry If the Event Log contains more than one entry,
	this is a pointer to the address of the start of
	the last entry in the event log in memory.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_INVALID_PARAMETER ProtocolCapability does not match TCG capability.
	**/
	typedef
	EFI_STATUS
	(EFIAPI *EFI_TCG_STATUS_CHECK)(
	IN EFI_TCG_PROTOCOL *This,
	OUT TCG_EFI_BOOT_SERVICE_CAPABILITY
	*ProtocolCapability,
	OUT UINT32 *TCGFeatureFlags,
	OUT EFI_PHYSICAL_ADDRESS *EventLogLocation,
	OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry
	);

	/**
	This service abstracts the capability to do a hash operation on a data buffer.

	@param This Indicates the calling context.
	@param HashData The pointer to the data buffer to be hashed.
	@param HashDataLen The length of the data buffer to be hashed.
	@param AlgorithmId Identification of the Algorithm to use for the hashing operation.
	@param HashedDataLen Resultant length of the hashed data.
	@param HashedDataResult Resultant buffer of the hashed data.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_INVALID_PARAMETER HashDataLen is NULL.
	@retval EFI_INVALID_PARAMETER HashDataLenResult is NULL.
	@retval EFI_OUT_OF_RESOURCES Cannot allocate buffer of size *HashedDataLen.
	@retval EFI_UNSUPPORTED AlgorithmId not supported.
	@retval EFI_BUFFER_TOO_SMALL *HashedDataLen < sizeof (TCG_DIGEST).
	**/
	typedef
	EFI_STATUS
	(EFIAPI *EFI_TCG_HASH_ALL)(
	IN EFI_TCG_PROTOCOL *This,
	IN UINT8 *HashData,
	IN UINT64 HashDataLen,
	IN TCG_ALGORITHM_ID AlgorithmId,
	IN OUT UINT64 *HashedDataLen,
	IN OUT UINT8 **HashedDataResult
	);

	/**
	This service abstracts the capability to add an entry to the Event Log.

	@param This Indicates the calling context
	@param TCGLogData The pointer to the start of the data buffer containing
	the TCG_PCR_EVENT data structure. All fields in
	this structure are properly filled by the caller.
	@param EventNumber The event number of the event just logged.
	@param Flags Indicates additional flags. Only one flag has been
	defined at this time, which is 0x01 and means the
	extend operation should not be performed. All
	other bits are reserved.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_OUT_OF_RESOURCES Insufficient memory in the event log to complete this action.
	**/
	typedef
	EFI_STATUS
	(EFIAPI *EFI_TCG_LOG_EVENT)(
	IN EFI_TCG_PROTOCOL *This,
	IN TCG_PCR_EVENT *TCGLogData,
	IN OUT UINT32 *EventNumber,
	IN UINT32 Flags
	);

	/**
	This service is a proxy for commands to the TPM.

	@param This Indicates the calling context.
	@param TpmInputParameterBlockSize Size of the TPM input parameter block.
	@param TpmInputParameterBlock The pointer to the TPM input parameter block.
	@param TpmOutputParameterBlockSize Size of the TPM output parameter block.
	@param TpmOutputParameterBlock The pointer to the TPM output parameter block.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_INVALID_PARAMETER Invalid ordinal.
	@retval EFI_UNSUPPORTED Current Task Priority Level >= EFI_TPL_CALLBACK.
	@retval EFI_TIMEOUT The TIS timed-out.
	**/
	typedef
	EFI_STATUS
	(EFIAPI *EFI_TCG_PASS_THROUGH_TO_TPM)(
	IN EFI_TCG_PROTOCOL *This,
	IN UINT32 TpmInputParameterBlockSize,
	IN UINT8 *TpmInputParameterBlock,
	IN UINT32 TpmOutputParameterBlockSize,
	IN UINT8 *TpmOutputParameterBlock
	);

	/**
	This service abstracts the capability to do a hash operation on a data buffer, extend a specific TPM PCR with the hash result, and add an entry to the Event Log

	@param This Indicates the calling context
	@param HashData The physical address of the start of the data buffer
	to be hashed, extended, and logged.
	@param HashDataLen The length, in bytes, of the buffer referenced by HashData
	@param AlgorithmId Identification of the Algorithm to use for the hashing operation
	@param TCGLogData The physical address of the start of the data
	buffer containing the TCG_PCR_EVENT data structure.
	@param EventNumber The event number of the event just logged.
	@param EventLogLastEntry The physical address of the first byte of the entry
	just placed in the Event Log. If the Event Log was
	empty when this function was called then this physical
	address will be the same as the physical address of
	the start of the Event Log.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_UNSUPPORTED AlgorithmId != TPM_ALG_SHA.
	@retval EFI_UNSUPPORTED Current TPL >= EFI_TPL_CALLBACK.
	@retval EFI_DEVICE_ERROR The command was unsuccessful.
	**/
	typedef
	EFI_STATUS
	(EFIAPI *EFI_TCG_HASH_LOG_EXTEND_EVENT)(
	IN EFI_TCG_PROTOCOL *This,
	IN EFI_PHYSICAL_ADDRESS HashData,
	IN UINT64 HashDataLen,
	IN TCG_ALGORITHM_ID AlgorithmId,
	IN OUT TCG_PCR_EVENT *TCGLogData,
	IN OUT UINT32 *EventNumber,
	OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry
	);

	///
	/// The EFI_TCG Protocol abstracts TCG activity.
	///
	struct _EFI_TCG_PROTOCOL {
	EFI_TCG_STATUS_CHECK StatusCheck;
	EFI_TCG_HASH_ALL HashAll;
	EFI_TCG_LOG_EVENT LogEvent;
	EFI_TCG_PASS_THROUGH_TO_TPM PassThroughToTpm;
	EFI_TCG_HASH_LOG_EXTEND_EVENT HashLogExtendEvent;
	};

	extern EFI_GUID gEfiTcgProtocolGuid;

	#endif