#include "TcgConfigImpl.h"

Functions
EFI_STATUS	GetTpmState (IN EFI_TCG_PROTOCOL TcgProtocol, OUT BOOLEAN TpmEnable OPTIONAL, OUT BOOLEAN *TpmActivate OPTIONAL)

EFI_STATUS EFIAPI	TcgExtractConfig (IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL This, IN CONST EFI_STRING Request, OUT EFI_STRING Progress, OUT EFI_STRING *Results)

EFI_STATUS EFIAPI	TcgRouteConfig (IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL This, IN CONST EFI_STRING Configuration, OUT EFI_STRING Progress)

EFI_STATUS	SavePpRequest (IN UINT8 PpRequest)

EFI_STATUS EFIAPI	TcgCallback (IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL This, IN EFI_BROWSER_ACTION Action, IN EFI_QUESTION_ID QuestionId, IN UINT8 Type, IN EFI_IFR_TYPE_VALUE Value, OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest)

EFI_STATUS	InstallTcgConfigForm (IN OUT TCG_CONFIG_PRIVATE_DATA *PrivateData)

VOID	UninstallTcgConfigForm (IN OUT TCG_CONFIG_PRIVATE_DATA *PrivateData)

Variables
CHAR16	mTcgStorageName [] = L"TCG_CONFIGURATION"

TCG_CONFIG_PRIVATE_DATA	mTcgConfigPrivateDateTemplate

HII_VENDOR_DEVICE_PATH	mTcgHiiVendorDevicePath

Detailed Description

HII Config Access protocol implementation of TCG configuration module.

Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file TcgConfigImpl.c.

Function Documentation

◆ GetTpmState()

EFI_STATUS GetTpmState	(	IN EFI_TCG_PROTOCOL *	TcgProtocol,
		OUT BOOLEAN *TpmEnable	OPTIONAL,
		OUT BOOLEAN *TpmActivate	OPTIONAL
	)

Get current state of TPM device.

Parameters

[in]	TcgProtocol	Point to EFI_TCG_PROTOCOL instance.
[out]	TpmEnable	Flag to indicate TPM is enabled or not.
[out]	TpmActivate	Flag to indicate TPM is activated or not.

Return values

EFI_SUCCESS	State is successfully returned.
EFI_DEVICE_ERROR	Failed to get TPM response.
Others	Other errors as indicated.

Definition at line 57 of file TcgConfigImpl.c.

◆ InstallTcgConfigForm()

EFI_STATUS InstallTcgConfigForm ( IN OUT TCG_CONFIG_PRIVATE_DATA * PrivateData )

This function publish the TCG configuration Form for TPM device.

Parameters

[in,out] PrivateData Points to TCG configuration private data.

Return values

EFI_SUCCESS	HII Form is installed for this network device.
EFI_OUT_OF_RESOURCES	Not enough resource for HII Form installation.
Others	Other errors as indicated.

Definition at line 413 of file TcgConfigImpl.c.

◆ SavePpRequest()

EFI_STATUS SavePpRequest ( IN UINT8 PpRequest )

Save TPM request to variable space.

Parameters

[in] PpRequest Physical Presence request command.

Return values

EFI_SUCCESS	The operation is finished successfully.
Others	Other errors as indicated.

Definition at line 298 of file TcgConfigImpl.c.

◆ TcgCallback()

EFI_STATUS EFIAPI TcgCallback	(	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *	This,
		IN EFI_BROWSER_ACTION	Action,
		IN EFI_QUESTION_ID	QuestionId,
		IN UINT8	Type,
		IN EFI_IFR_TYPE_VALUE *	Value,
		OUT EFI_BROWSER_ACTION_REQUEST *	ActionRequest
	)

This function processes the results of changes in configuration.

Parameters

[in]	This	Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
[in]	Action	Specifies the type of action taken by the browser.
[in]	QuestionId	A unique value which is sent to the original exporting driver so that it can identify the type of data to expect.
[in]	Type	The type of value for the question.
[in]	Value	A pointer to the data being sent to the original exporting driver.
[out]	ActionRequest	On return, points to the action requested by the callback function.

Return values

EFI_SUCCESS	The callback successfully handled the action.
EFI_OUT_OF_RESOURCES	Not enough storage is available to hold the variable and its data.
EFI_DEVICE_ERROR	The variable could not be saved.
EFI_UNSUPPORTED	The specified Action is not supported by the callback.

Definition at line 360 of file TcgConfigImpl.c.

◆ TcgExtractConfig()

EFI_STATUS EFIAPI TcgExtractConfig	(	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *	This,
		IN CONST EFI_STRING	Request,
		OUT EFI_STRING *	Progress,
		OUT EFI_STRING *	Results
	)

This function allows a caller to extract the current configuration for one or more named elements from the target driver.

Parameters

[in]	This	Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
[in]	Request	A null-terminated Unicode string in <ConfigRequest> format.
[out]	Progress	On return, points to a character in the Request string. Points to the string's null terminator if request was successful. Points to the most recent '&' before the first failing name/value pair (or the beginning of the string if the failure is in the first name/value pair) if the request was not successful.
[out]	Results	A null-terminated Unicode string in <ConfigAltResp> format which has all values filled in for the names in the Request string. String to be allocated by the called function.

Return values

EFI_SUCCESS	The Results is filled with the requested values.
EFI_OUT_OF_RESOURCES	Not enough memory to store the results.
EFI_INVALID_PARAMETER	Request is illegal syntax, or unknown name.
EFI_NOT_FOUND	Routing data doesn't match any storage in this driver.

Definition at line 138 of file TcgConfigImpl.c.

◆ TcgRouteConfig()

EFI_STATUS EFIAPI TcgRouteConfig	(	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *	This,
		IN CONST EFI_STRING	Configuration,
		OUT EFI_STRING *	Progress
	)

This function processes the results of changes in configuration.

Parameters

[in]	This	Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
[in]	Configuration	A null-terminated Unicode string in <ConfigResp> format.
[out]	Progress	A pointer to a string filled in with the offset of the most recent '&' before the first failing name/value pair (or the beginning of the string if the failure is in the first name/value pair) or the terminating NULL if all was successful.

Return values

EFI_SUCCESS	The Results is processed successfully.
EFI_INVALID_PARAMETER	Configuration is NULL.
EFI_NOT_FOUND	Routing data doesn't match any storage in this driver.

Definition at line 251 of file TcgConfigImpl.c.

◆ UninstallTcgConfigForm()

VOID UninstallTcgConfigForm ( IN OUT TCG_CONFIG_PRIVATE_DATA * PrivateData )

This function removes TCG configuration Form.

Parameters

[in,out] PrivateData Points to TCG configuration private data.

Definition at line 473 of file TcgConfigImpl.c.

Variable Documentation

◆ mTcgConfigPrivateDateTemplate

TCG_CONFIG_PRIVATE_DATA mTcgConfigPrivateDateTemplate

Initial value:

= {
  TCG_CONFIG_PRIVATE_DATA_SIGNATURE,
  {
    TcgExtractConfig,
    TcgRouteConfig,
    TcgCallback
  }
}

Definition at line 13 of file TcgConfigImpl.c.

◆ mTcgHiiVendorDevicePath

HII_VENDOR_DEVICE_PATH mTcgHiiVendorDevicePath

Initial value:

= {
  {
    {
      HARDWARE_DEVICE_PATH,
      HW_VENDOR_DP,
      {
        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
      }
    },
    TCG_CONFIG_FORM_SET_GUID
  },
  {
    END_DEVICE_PATH_TYPE,
    END_ENTIRE_DEVICE_PATH_SUBTYPE,
    {
      (UINT8)(END_DEVICE_PATH_LENGTH),
      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
    }
  }
}

Definition at line 22 of file TcgConfigImpl.c.

◆ mTcgStorageName

CHAR16 mTcgStorageName[] = L"TCG_CONFIGURATION"

Definition at line 11 of file TcgConfigImpl.c.

Functions

Variables

Detailed Description

Function Documentation

◆ GetTpmState()

◆ InstallTcgConfigForm()

◆ SavePpRequest()

◆ TcgCallback()

◆ TcgExtractConfig()

◆ TcgRouteConfig()

◆ UninstallTcgConfigForm()

Variable Documentation

◆ mTcgConfigPrivateDateTemplate

◆ mTcgHiiVendorDevicePath

◆ mTcgStorageName