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https://github.com/CloverHackyColor/CloverBootloader.git
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121 lines
4.4 KiB
C
121 lines
4.4 KiB
C
/** @file
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Variable check definitions.
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Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _VARIABLE_CHECK_H_
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#define _VARIABLE_CHECK_H_
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#include <Uefi/UefiSpec.h>
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typedef struct _EDKII_VAR_CHECK_PROTOCOL EDKII_VAR_CHECK_PROTOCOL;
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#define EDKII_VAR_CHECK_PROTOCOL_GUID { \
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0xaf23b340, 0x97b4, 0x4685, { 0x8d, 0x4f, 0xa3, 0xf2, 0x81, 0x69, 0xb2, 0x1d } \
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};
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typedef EFI_SET_VARIABLE VAR_CHECK_SET_VARIABLE_CHECK_HANDLER;
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/**
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Register SetVariable check handler.
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Variable driver will call the handler to do check before
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really setting the variable into variable storage.
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@param[in] Handler Pointer to the check handler.
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@retval EFI_SUCCESS The SetVariable check handler was registered successfully.
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@retval EFI_INVALID_PARAMETER Handler is NULL.
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@retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has already been signaled.
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@retval EFI_OUT_OF_RESOURCES There is not enough resource for the SetVariable check handler register request.
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@retval EFI_UNSUPPORTED This interface is not implemented.
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For example, it is unsupported in VarCheck protocol if both VarCheck and SmmVarCheck protocols are present.
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**/
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typedef
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EFI_STATUS
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(EFIAPI * EDKII_VAR_CHECK_REGISTER_SET_VARIABLE_CHECK_HANDLER) (
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IN VAR_CHECK_SET_VARIABLE_CHECK_HANDLER Handler
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);
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#define VAR_CHECK_VARIABLE_PROPERTY_REVISION 0x0001
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//
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// 1. Set by VariableLock PROTOCOL
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// 2. Set by VarCheck PROTOCOL
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//
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// If set, other fields for check will be ignored.
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//
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#define VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY BIT0
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typedef struct {
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UINT16 Revision;
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UINT16 Property;
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UINT32 Attributes;
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UINTN MinSize;
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UINTN MaxSize;
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} VAR_CHECK_VARIABLE_PROPERTY;
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typedef struct {
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EFI_GUID *Guid;
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CHAR16 *Name;
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VAR_CHECK_VARIABLE_PROPERTY VariableProperty;
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} VARIABLE_ENTRY_PROPERTY;
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/**
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Variable property set.
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Variable driver will do check according to the VariableProperty before
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really setting the variable into variable storage.
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@param[in] Name Pointer to the variable name.
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@param[in] Guid Pointer to the vendor GUID.
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@param[in] VariableProperty Pointer to the input variable property.
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@retval EFI_SUCCESS The property of variable specified by the Name and Guid was set successfully.
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@retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string,
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or the fields of VariableProperty are not valid.
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@retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
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already been signaled.
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@retval EFI_OUT_OF_RESOURCES There is not enough resource for the variable property set request.
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**/
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typedef
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EFI_STATUS
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(EFIAPI * EDKII_VAR_CHECK_VARIABLE_PROPERTY_SET) (
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IN CHAR16 *Name,
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IN EFI_GUID *Guid,
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IN VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
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);
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/**
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Variable property get.
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@param[in] Name Pointer to the variable name.
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@param[in] Guid Pointer to the vendor GUID.
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@param[out] VariableProperty Pointer to the output variable property.
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@retval EFI_SUCCESS The property of variable specified by the Name and Guid was got successfully.
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@retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string.
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@retval EFI_NOT_FOUND The property of variable specified by the Name and Guid was not found.
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**/
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typedef
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EFI_STATUS
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(EFIAPI * EDKII_VAR_CHECK_VARIABLE_PROPERTY_GET) (
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IN CHAR16 *Name,
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IN EFI_GUID *Guid,
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OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
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);
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struct _EDKII_VAR_CHECK_PROTOCOL {
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EDKII_VAR_CHECK_REGISTER_SET_VARIABLE_CHECK_HANDLER RegisterSetVariableCheckHandler;
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EDKII_VAR_CHECK_VARIABLE_PROPERTY_SET VariablePropertySet;
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EDKII_VAR_CHECK_VARIABLE_PROPERTY_GET VariablePropertyGet;
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};
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extern EFI_GUID gEdkiiVarCheckProtocolGuid;
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#endif
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