diff options
Diffstat (limited to 'SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.h')
| -rw-r--r-- | SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.h | 836 |
1 files changed, 0 insertions, 836 deletions
diff --git a/SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.h b/SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.h deleted file mode 100644 index 20f60d4a9e..0000000000 --- a/SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.h +++ /dev/null @@ -1,836 +0,0 @@ -/** @file
- The internal header file includes the common header files, defines
- internal structure and functions used by Variable modules.
-
-Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#ifndef _VARIABLE_H_
-#define _VARIABLE_H_
-
-#include <PiDxe.h>
-#include <Protocol/VariableWrite.h>
-#include <Protocol/FaultTolerantWrite.h>
-#include <Protocol/FirmwareVolumeBlock.h>
-#include <Protocol/Variable.h>
-#include <Protocol/VariableLock.h>
-#include <Protocol/VarCheck.h>
-#include <Library/PcdLib.h>
-#include <Library/HobLib.h>
-#include <Library/UefiDriverEntryPoint.h>
-#include <Library/DxeServicesTableLib.h>
-#include <Library/UefiRuntimeLib.h>
-#include <Library/DebugLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-#include <Library/BaseLib.h>
-#include <Library/SynchronizationLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/BaseCryptLib.h>
-#include <Library/PlatformSecureLib.h>
-#include <Guid/GlobalVariable.h>
-#include <Guid/EventGroup.h>
-#include <Guid/AuthenticatedVariableFormat.h>
-#include <Guid/ImageAuthentication.h>
-#include <Guid/SystemNvDataGuid.h>
-#include <Guid/FaultTolerantWrite.h>
-#include <Guid/HardwareErrorVariable.h>
-#include <Guid/VarErrorFlag.h>
-
-#define EFI_VARIABLE_ATTRIBUTES_MASK (EFI_VARIABLE_NON_VOLATILE | \
- EFI_VARIABLE_BOOTSERVICE_ACCESS | \
- EFI_VARIABLE_RUNTIME_ACCESS | \
- EFI_VARIABLE_HARDWARE_ERROR_RECORD | \
- EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \
- EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \
- EFI_VARIABLE_APPEND_WRITE)
-
-#define VARIABLE_ATTRIBUTE_NV_BS (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS)
-#define VARIABLE_ATTRIBUTE_BS_RT (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)
-#define VARIABLE_ATTRIBUTE_NV_BS_RT (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_NON_VOLATILE)
-#define VARIABLE_ATTRIBUTE_NV_BS_RT_AT (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
-#define VARIABLE_ATTRIBUTE_NV_BS_RT_HR (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_HARDWARE_ERROR_RECORD)
-#define VARIABLE_ATTRIBUTE_NV_BS_RT_AW (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
-#define VARIABLE_ATTRIBUTE_NV_BS_RT_AT_HR_AW (VARIABLE_ATTRIBUTE_NV_BS_RT_AT | EFI_VARIABLE_HARDWARE_ERROR_RECORD | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
-#define VARIABLE_ATTRIBUTE_AT_AW (EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
-
-#define MAX_NV_VARIABLE_SIZE (MAX (MAX (PcdGet32 (PcdMaxVariableSize), \
- PcdGet32 (PcdMaxAuthVariableSize)), \
- PcdGet32 (PcdMaxHardwareErrorVariableSize)))
-
-///
-/// The size of a 3 character ISO639 language code.
-///
-#define ISO_639_2_ENTRY_SIZE 3
-
-typedef enum {
- VariableStoreTypeVolatile,
- VariableStoreTypeHob,
- VariableStoreTypeNv,
- VariableStoreTypeMax
-} VARIABLE_STORE_TYPE;
-
-typedef struct {
- VARIABLE_HEADER *CurrPtr;
- //
- // If both ADDED and IN_DELETED_TRANSITION variable are present,
- // InDeletedTransitionPtr will point to the IN_DELETED_TRANSITION one.
- // Otherwise, CurrPtr will point to the ADDED or IN_DELETED_TRANSITION one,
- // and InDeletedTransitionPtr will be NULL at the same time.
- //
- VARIABLE_HEADER *InDeletedTransitionPtr;
- VARIABLE_HEADER *EndPtr;
- VARIABLE_HEADER *StartPtr;
- BOOLEAN Volatile;
-} VARIABLE_POINTER_TRACK;
-
-typedef struct {
- EFI_PHYSICAL_ADDRESS HobVariableBase;
- EFI_PHYSICAL_ADDRESS VolatileVariableBase;
- EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;
- EFI_LOCK VariableServicesLock;
- UINT32 ReentrantState;
-} VARIABLE_GLOBAL;
-
-typedef struct {
- VARIABLE_GLOBAL VariableGlobal;
- UINTN VolatileLastVariableOffset;
- UINTN NonVolatileLastVariableOffset;
- UINTN CommonVariableSpace;
- UINTN CommonMaxUserVariableSpace;
- UINTN CommonRuntimeVariableSpace;
- UINTN CommonVariableTotalSize;
- UINTN CommonUserVariableTotalSize;
- UINTN HwErrVariableTotalSize;
- UINTN MaxVariableSize;
- UINTN MaxAuthVariableSize;
- UINTN ScratchBufferSize;
- CHAR8 *PlatformLangCodes;
- CHAR8 *LangCodes;
- CHAR8 *PlatformLang;
- CHAR8 Lang[ISO_639_2_ENTRY_SIZE + 1];
- EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbInstance;
-} VARIABLE_MODULE_GLOBAL;
-
-typedef struct {
- LIST_ENTRY Link;
- EFI_GUID Guid;
- //CHAR16 *Name;
-} VARIABLE_ENTRY;
-
-/**
- Flush the HOB variable to flash.
-
- @param[in] VariableName Name of variable has been updated or deleted.
- @param[in] VendorGuid Guid of variable has been updated or deleted.
-
-**/
-VOID
-FlushHobVariableToFlash (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid
- );
-
-/**
- Writes a buffer to variable storage space, in the working block.
-
- This function writes a buffer to variable storage space into a firmware
- volume block device. The destination is specified by the parameter
- VariableBase. Fault Tolerant Write protocol is used for writing.
-
- @param VariableBase Base address of the variable to write.
- @param VariableBuffer Point to the variable data buffer.
-
- @retval EFI_SUCCESS The function completed successfully.
- @retval EFI_NOT_FOUND Fail to locate Fault Tolerant Write protocol.
- @retval EFI_ABORTED The function could not complete successfully.
-
-**/
-EFI_STATUS
-FtwVariableSpace (
- IN EFI_PHYSICAL_ADDRESS VariableBase,
- IN VARIABLE_STORE_HEADER *VariableBuffer
- );
-
-/**
- Finds variable in storage blocks of volatile and non-volatile storage areas.
-
- This code finds variable in storage blocks of volatile and non-volatile storage areas.
- If VariableName is an empty string, then we just return the first
- qualified variable without comparing VariableName and VendorGuid.
- If IgnoreRtCheck is TRUE, then we ignore the EFI_VARIABLE_RUNTIME_ACCESS attribute check
- at runtime when searching existing variable, only VariableName and VendorGuid are compared.
- Otherwise, variables without EFI_VARIABLE_RUNTIME_ACCESS are not visible at runtime.
-
- @param[in] VariableName Name of the variable to be found.
- @param[in] VendorGuid Vendor GUID to be found.
- @param[out] PtrTrack VARIABLE_POINTER_TRACK structure for output,
- including the range searched and the target position.
- @param[in] Global Pointer to VARIABLE_GLOBAL structure, including
- base of volatile variable storage area, base of
- NV variable storage area, and a lock.
- @param[in] IgnoreRtCheck Ignore EFI_VARIABLE_RUNTIME_ACCESS attribute
- check at runtime when searching variable.
-
- @retval EFI_INVALID_PARAMETER If VariableName is not an empty string, while
- VendorGuid is NULL.
- @retval EFI_SUCCESS Variable successfully found.
- @retval EFI_NOT_FOUND Variable not found
-
-**/
-EFI_STATUS
-FindVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT VARIABLE_POINTER_TRACK *PtrTrack,
- IN VARIABLE_GLOBAL *Global,
- IN BOOLEAN IgnoreRtCheck
- );
-
-/**
-
- Gets the pointer to the end of the variable storage area.
-
- This function gets pointer to the end of the variable storage
- area, according to the input variable store header.
-
- @param VarStoreHeader Pointer to the Variable Store Header.
-
- @return Pointer to the end of the variable storage area.
-
-**/
-VARIABLE_HEADER *
-GetEndPointer (
- IN VARIABLE_STORE_HEADER *VarStoreHeader
- );
-
-/**
-
- This code gets the pointer to the variable data.
-
- @param Variable Pointer to the Variable Header.
-
- @return Pointer to Variable Data.
-
-**/
-UINT8 *
-GetVariableDataPtr (
- IN VARIABLE_HEADER *Variable
- );
-
-/**
-
- This code gets the size of variable data.
-
- @param Variable Pointer to the Variable Header.
-
- @return Size of variable in bytes.
-
-**/
-UINTN
-DataSizeOfVariable (
- IN VARIABLE_HEADER *Variable
- );
-
-/**
- This function is to check if the remaining variable space is enough to set
- all Variables from argument list successfully. The purpose of the check
- is to keep the consistency of the Variables to be in variable storage.
-
- Note: Variables are assumed to be in same storage.
- The set sequence of Variables will be same with the sequence of VariableEntry from argument list,
- so follow the argument sequence to check the Variables.
-
- @param[in] Attributes Variable attributes for Variable entries.
- @param ... The variable argument list with type VARIABLE_ENTRY_CONSISTENCY *.
- A NULL terminates the list. The VariableSize of
- VARIABLE_ENTRY_CONSISTENCY is the variable data size as input.
- It will be changed to variable total size as output.
-
- @retval TRUE Have enough variable space to set the Variables successfully.
- @retval FALSE No enough variable space to set the Variables successfully.
-
-**/
-BOOLEAN
-EFIAPI
-CheckRemainingSpaceForConsistency (
- IN UINT32 Attributes,
- ...
- );
-
-/**
- Update the variable region with Variable information. If EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS is set,
- index of associated public key is needed.
-
- @param[in] VariableName Name of variable.
- @param[in] VendorGuid Guid of variable.
- @param[in] Data Variable data.
- @param[in] DataSize Size of data. 0 means delete.
- @param[in] Attributes Attributes of the variable.
- @param[in] KeyIndex Index of associated public key.
- @param[in] MonotonicCount Value of associated monotonic count.
- @param[in, out] Variable The variable information that is used to keep track of variable usage.
-
- @param[in] TimeStamp Value of associated TimeStamp.
-
- @retval EFI_SUCCESS The update operation is success.
- @retval EFI_OUT_OF_RESOURCES Variable region is full, cannot write other data into this region.
-
-**/
-EFI_STATUS
-UpdateVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN VOID *Data,
- IN UINTN DataSize,
- IN UINT32 Attributes OPTIONAL,
- IN UINT32 KeyIndex OPTIONAL,
- IN UINT64 MonotonicCount OPTIONAL,
- IN OUT VARIABLE_POINTER_TRACK *Variable,
- IN EFI_TIME *TimeStamp OPTIONAL
- );
-
-
-/**
- Return TRUE if ExitBootServices () has been called.
-
- @retval TRUE If ExitBootServices () has been called.
-**/
-BOOLEAN
-AtRuntime (
- VOID
- );
-
-/**
- Initializes a basic mutual exclusion lock.
-
- This function initializes a basic mutual exclusion lock to the released state
- and returns the lock. Each lock provides mutual exclusion access at its task
- priority level. Since there is no preemption or multiprocessor support in EFI,
- acquiring the lock only consists of raising to the locks TPL.
- If Lock is NULL, then ASSERT().
- If Priority is not a valid TPL value, then ASSERT().
-
- @param Lock A pointer to the lock data structure to initialize.
- @param Priority EFI TPL is associated with the lock.
-
- @return The lock.
-
-**/
-EFI_LOCK *
-InitializeLock (
- IN OUT EFI_LOCK *Lock,
- IN EFI_TPL Priority
- );
-
-
-/**
- Acquires lock only at boot time. Simply returns at runtime.
-
- This is a temperary function that will be removed when
- EfiAcquireLock() in UefiLib can handle the call in UEFI
- Runtimer driver in RT phase.
- It calls EfiAcquireLock() at boot time, and simply returns
- at runtime.
-
- @param Lock A pointer to the lock to acquire.
-
-**/
-VOID
-AcquireLockOnlyAtBootTime (
- IN EFI_LOCK *Lock
- );
-
-
-/**
- Releases lock only at boot time. Simply returns at runtime.
-
- This is a temperary function which will be removed when
- EfiReleaseLock() in UefiLib can handle the call in UEFI
- Runtimer driver in RT phase.
- It calls EfiReleaseLock() at boot time and simply returns
- at runtime.
-
- @param Lock A pointer to the lock to release.
-
-**/
-VOID
-ReleaseLockOnlyAtBootTime (
- IN EFI_LOCK *Lock
- );
-
-/**
- Retrive the FVB protocol interface by HANDLE.
-
- @param[in] FvBlockHandle The handle of FVB protocol that provides services for
- reading, writing, and erasing the target block.
- @param[out] FvBlock The interface of FVB protocol
-
- @retval EFI_SUCCESS The interface information for the specified protocol was returned.
- @retval EFI_UNSUPPORTED The device does not support the FVB protocol.
- @retval EFI_INVALID_PARAMETER FvBlockHandle is not a valid EFI_HANDLE or FvBlock is NULL.
-
-**/
-EFI_STATUS
-GetFvbByHandle (
- IN EFI_HANDLE FvBlockHandle,
- OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvBlock
- );
-
-
-/**
- Retrive the Swap Address Range protocol interface.
-
- @param[out] SarProtocol The interface of SAR protocol
-
- @retval EFI_SUCCESS The SAR protocol instance was found and returned in SarProtocol.
- @retval EFI_NOT_FOUND The SAR protocol instance was not found.
- @retval EFI_INVALID_PARAMETER SarProtocol is NULL.
-
-**/
-EFI_STATUS
-GetSarProtocol (
- OUT VOID **SarProtocol
- );
-
-/**
- Function returns an array of handles that support the FVB protocol
- in a buffer allocated from pool.
-
- @param[out] NumberHandles The number of handles returned in Buffer.
- @param[out] Buffer A pointer to the buffer to return the requested
- array of handles that support FVB protocol.
-
- @retval EFI_SUCCESS The array of handles was returned in Buffer, and the number of
- handles in Buffer was returned in NumberHandles.
- @retval EFI_NOT_FOUND No FVB handle was found.
- @retval EFI_OUT_OF_RESOURCES There is not enough pool memory to store the matching results.
- @retval EFI_INVALID_PARAMETER NumberHandles is NULL or Buffer is NULL.
-
-**/
-EFI_STATUS
-GetFvbCountAndBuffer (
- OUT UINTN *NumberHandles,
- OUT EFI_HANDLE **Buffer
- );
-
-/**
- Initializes variable store area for non-volatile and volatile variable.
-
- @retval EFI_SUCCESS Function successfully executed.
- @retval EFI_OUT_OF_RESOURCES Fail to allocate enough memory resource.
-
-**/
-EFI_STATUS
-VariableCommonInitialize (
- VOID
- );
-
-/**
-
- Variable store garbage collection and reclaim operation.
-
- If ReclaimPubKeyStore is FALSE, reclaim variable space by deleting the obsoleted varaibles.
- If ReclaimPubKeyStore is TRUE, reclaim invalid key in public key database and update the PubKeyIndex
- for all the count-based authenticate variable in NV storage.
-
- @param[in] VariableBase Base address of variable store.
- @param[out] LastVariableOffset Offset of last variable.
- @param[in] IsVolatile The variable store is volatile or not;
- if it is non-volatile, need FTW.
- @param[in, out] UpdatingPtrTrack Pointer to updating variable pointer track structure.
- @param[in] NewVariable Pointer to new variable.
- @param[in] NewVariableSize New variable size.
- @param[in] ReclaimPubKeyStore Reclaim for public key database or not.
-
- @return EFI_SUCCESS Reclaim operation has finished successfully.
- @return EFI_OUT_OF_RESOURCES No enough memory resources or variable space.
- @return EFI_DEVICE_ERROR The public key database doesn't exist.
- @return Others Unexpect error happened during reclaim operation.
-
-**/
-EFI_STATUS
-Reclaim (
- IN EFI_PHYSICAL_ADDRESS VariableBase,
- OUT UINTN *LastVariableOffset,
- IN BOOLEAN IsVolatile,
- IN OUT VARIABLE_POINTER_TRACK *UpdatingPtrTrack,
- IN VARIABLE_HEADER *NewVariable,
- IN UINTN NewVariableSize,
- IN BOOLEAN ReclaimPubKeyStore
- );
-
-/**
- This function reclaims variable storage if free size is below the threshold.
-
-**/
-VOID
-ReclaimForOS(
- VOID
- );
-
-
-/**
- Initializes variable write service after FVB was ready.
-
- @retval EFI_SUCCESS Function successfully executed.
- @retval Others Fail to initialize the variable service.
-
-**/
-EFI_STATUS
-VariableWriteServiceInitialize (
- VOID
- );
-
-/**
- Retrive the SMM Fault Tolerent Write protocol interface.
-
- @param[out] FtwProtocol The interface of SMM Ftw protocol
-
- @retval EFI_SUCCESS The SMM SAR protocol instance was found and returned in SarProtocol.
- @retval EFI_NOT_FOUND The SMM SAR protocol instance was not found.
- @retval EFI_INVALID_PARAMETER SarProtocol is NULL.
-
-**/
-EFI_STATUS
-GetFtwProtocol (
- OUT VOID **FtwProtocol
- );
-
-/**
- Get the proper fvb handle and/or fvb protocol by the given Flash address.
-
- @param[in] Address The Flash address.
- @param[out] FvbHandle In output, if it is not NULL, it points to the proper FVB handle.
- @param[out] FvbProtocol In output, if it is not NULL, it points to the proper FVB protocol.
-
-**/
-EFI_STATUS
-GetFvbInfoByAddress (
- IN EFI_PHYSICAL_ADDRESS Address,
- OUT EFI_HANDLE *FvbHandle OPTIONAL,
- OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvbProtocol OPTIONAL
- );
-
-/**
-
- This code finds variable in storage blocks (Volatile or Non-Volatile).
-
- Caution: This function may receive untrusted input.
- This function may be invoked in SMM mode, and datasize and data are external input.
- This function will do basic validation, before parse the data.
-
- @param VariableName Name of Variable to be found.
- @param VendorGuid Variable vendor GUID.
- @param Attributes Attribute value of the variable found.
- @param DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- @param Data Data pointer.
-
- @return EFI_INVALID_PARAMETER Invalid parameter.
- @return EFI_SUCCESS Find the specified variable.
- @return EFI_NOT_FOUND Not found.
- @return EFI_BUFFER_TO_SMALL DataSize is too small for the result.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableServiceGetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT UINT32 *Attributes OPTIONAL,
- IN OUT UINTN *DataSize,
- OUT VOID *Data
- );
-
-/**
-
- This code Finds the Next available variable.
-
- Caution: This function may receive untrusted input.
- This function may be invoked in SMM mode. This function will do basic validation, before parse the data.
-
- @param VariableNameSize Size of the variable name.
- @param VariableName Pointer to variable name.
- @param VendorGuid Variable Vendor Guid.
-
- @return EFI_INVALID_PARAMETER Invalid parameter.
- @return EFI_SUCCESS Find the specified variable.
- @return EFI_NOT_FOUND Not found.
- @return EFI_BUFFER_TO_SMALL DataSize is too small for the result.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableServiceGetNextVariableName (
- IN OUT UINTN *VariableNameSize,
- IN OUT CHAR16 *VariableName,
- IN OUT EFI_GUID *VendorGuid
- );
-
-/**
-
- This code sets variable in storage blocks (Volatile or Non-Volatile).
-
- Caution: This function may receive untrusted input.
- This function may be invoked in SMM mode, and datasize and data are external input.
- This function will do basic validation, before parse the data.
- This function will parse the authentication carefully to avoid security issues, like
- buffer overflow, integer overflow.
- This function will check attribute carefully to avoid authentication bypass.
-
- @param VariableName Name of Variable to be found.
- @param VendorGuid Variable vendor GUID.
- @param Attributes Attribute value of the variable found
- @param DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- @param Data Data pointer.
-
- @return EFI_INVALID_PARAMETER Invalid parameter.
- @return EFI_SUCCESS Set successfully.
- @return EFI_OUT_OF_RESOURCES Resource not enough to set variable.
- @return EFI_NOT_FOUND Not found.
- @return EFI_WRITE_PROTECTED Variable is read-only.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableServiceSetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN UINT32 Attributes,
- IN UINTN DataSize,
- IN VOID *Data
- );
-
-/**
-
- This code returns information about the EFI variables.
-
- Caution: This function may receive untrusted input.
- This function may be invoked in SMM mode. This function will do basic validation, before parse the data.
-
- @param Attributes Attributes bitmask to specify the type of variables
- on which to return information.
- @param MaximumVariableStorageSize Pointer to the maximum size of the storage space available
- for the EFI variables associated with the attributes specified.
- @param RemainingVariableStorageSize Pointer to the remaining size of the storage space available
- for EFI variables associated with the attributes specified.
- @param MaximumVariableSize Pointer to the maximum size of an individual EFI variables
- associated with the attributes specified.
-
- @return EFI_SUCCESS Query successfully.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableServiceQueryVariableInfoInternal (
- IN UINT32 Attributes,
- OUT UINT64 *MaximumVariableStorageSize,
- OUT UINT64 *RemainingVariableStorageSize,
- OUT UINT64 *MaximumVariableSize
- );
-
-/**
-
- This code returns information about the EFI variables.
-
- Caution: This function may receive untrusted input.
- This function may be invoked in SMM mode. This function will do basic validation, before parse the data.
-
- @param Attributes Attributes bitmask to specify the type of variables
- on which to return information.
- @param MaximumVariableStorageSize Pointer to the maximum size of the storage space available
- for the EFI variables associated with the attributes specified.
- @param RemainingVariableStorageSize Pointer to the remaining size of the storage space available
- for EFI variables associated with the attributes specified.
- @param MaximumVariableSize Pointer to the maximum size of an individual EFI variables
- associated with the attributes specified.
-
- @return EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied.
- @return EFI_SUCCESS Query successfully.
- @return EFI_UNSUPPORTED The attribute is not supported on this platform.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableServiceQueryVariableInfo (
- IN UINT32 Attributes,
- OUT UINT64 *MaximumVariableStorageSize,
- OUT UINT64 *RemainingVariableStorageSize,
- OUT UINT64 *MaximumVariableSize
- );
-
-/**
- Mark a variable that will become read-only after leaving the DXE phase of execution.
-
- @param[in] This The VARIABLE_LOCK_PROTOCOL instance.
- @param[in] VariableName A pointer to the variable name that will be made read-only subsequently.
- @param[in] VendorGuid A pointer to the vendor GUID that will be made read-only subsequently.
-
- @retval EFI_SUCCESS The variable specified by the VariableName and the VendorGuid was marked
- as pending to be read-only.
- @retval EFI_INVALID_PARAMETER VariableName or VendorGuid is NULL.
- Or VariableName is an empty string.
- @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
- already been signaled.
- @retval EFI_OUT_OF_RESOURCES There is not enough resource to hold the lock request.
-**/
-EFI_STATUS
-EFIAPI
-VariableLockRequestToLock (
- IN CONST EDKII_VARIABLE_LOCK_PROTOCOL *This,
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid
- );
-
-/**
- Check if a Unicode character is a hexadecimal character.
-
- This function checks if a Unicode character is a
- hexadecimal character. The valid hexadecimal character is
- L'0' to L'9', L'a' to L'f', or L'A' to L'F'.
-
-
- @param Char The character to check against.
-
- @retval TRUE If the Char is a hexadecmial character.
- @retval FALSE If the Char is not a hexadecmial character.
-
-**/
-BOOLEAN
-EFIAPI
-IsHexaDecimalDigitCharacter (
- IN CHAR16 Char
- );
-
-/**
- Internal SetVariable check.
-
- @param[in] VariableName Name of Variable to set.
- @param[in] VendorGuid Variable vendor GUID.
- @param[in] Attributes Attribute value of the variable.
- @param[in] DataSize Size of Data to set.
- @param[in] Data Data pointer.
-
- @retval EFI_SUCCESS The SetVariable check result was success.
- @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits, name, and GUID were supplied,
- or the DataSize exceeds the minimum or maximum allowed,
- or the Data value is not following UEFI spec for UEFI defined variables.
- @retval EFI_WRITE_PROTECTED The variable in question is read-only.
- @retval Others The return status from check handler.
-
-**/
-EFI_STATUS
-EFIAPI
-InternalVarCheckSetVariableCheck (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN UINT32 Attributes,
- IN UINTN DataSize,
- IN VOID *Data
- );
-
-/**
- Register SetVariable check handler.
-
- @param[in] Handler Pointer to check handler.
-
- @retval EFI_SUCCESS The SetVariable check handler was registered successfully.
- @retval EFI_INVALID_PARAMETER Handler is NULL.
- @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
- already been signaled.
- @retval EFI_OUT_OF_RESOURCES There is not enough resource for the SetVariable check handler register request.
- @retval EFI_UNSUPPORTED This interface is not implemented.
- For example, it is unsupported in VarCheck protocol if both VarCheck and SmmVarCheck protocols are present.
-
-**/
-EFI_STATUS
-EFIAPI
-VarCheckRegisterSetVariableCheckHandler (
- IN VAR_CHECK_SET_VARIABLE_CHECK_HANDLER Handler
- );
-
-/**
- Internal variable property get.
-
- @param[in] Name Pointer to the variable name.
- @param[in] Guid Pointer to the vendor GUID.
- @param[out] VariableProperty Pointer to the output variable property.
-
- @retval EFI_SUCCESS The property of variable specified by the Name and Guid was got successfully.
- @retval EFI_NOT_FOUND The property of variable specified by the Name and Guid was not found.
-
-**/
-EFI_STATUS
-EFIAPI
-InternalVarCheckVariablePropertyGet (
- IN CHAR16 *Name,
- IN EFI_GUID *Guid,
- OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
- );
-
-/**
- Variable property set.
-
- @param[in] Name Pointer to the variable name.
- @param[in] Guid Pointer to the vendor GUID.
- @param[in] VariableProperty Pointer to the input variable property.
-
- @retval EFI_SUCCESS The property of variable specified by the Name and Guid was set successfully.
- @retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string,
- or the fields of VariableProperty are not valid.
- @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
- already been signaled.
- @retval EFI_OUT_OF_RESOURCES There is not enough resource for the variable property set request.
-
-**/
-EFI_STATUS
-EFIAPI
-VarCheckVariablePropertySet (
- IN CHAR16 *Name,
- IN EFI_GUID *Guid,
- IN VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
- );
-
-/**
- Variable property get.
-
- @param[in] Name Pointer to the variable name.
- @param[in] Guid Pointer to the vendor GUID.
- @param[out] VariableProperty Pointer to the output variable property.
-
- @retval EFI_SUCCESS The property of variable specified by the Name and Guid was got successfully.
- @retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string.
- @retval EFI_NOT_FOUND The property of variable specified by the Name and Guid was not found.
-
-**/
-EFI_STATUS
-EFIAPI
-VarCheckVariablePropertyGet (
- IN CHAR16 *Name,
- IN EFI_GUID *Guid,
- OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
- );
-
-/**
- Initialize variable quota.
-
-**/
-VOID
-InitializeVariableQuota (
- VOID
- );
-
-extern VARIABLE_MODULE_GLOBAL *mVariableModuleGlobal;
-
-#endif
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