mirror of https://github.com/acidanthera/audk.git
624 lines
20 KiB
C
624 lines
20 KiB
C
/** @file
|
|
The header file of HII Config Access protocol implementation of SecureBoot
|
|
configuration module.
|
|
|
|
Copyright (c) 2011 - 2014, 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 __SECUREBOOT_CONFIG_IMPL_H__
|
|
#define __SECUREBOOT_CONFIG_IMPL_H__
|
|
|
|
#include <Uefi.h>
|
|
|
|
#include <Protocol/HiiConfigAccess.h>
|
|
#include <Protocol/HiiConfigRouting.h>
|
|
#include <Protocol/SimpleFileSystem.h>
|
|
#include <Protocol/BlockIo.h>
|
|
#include <Protocol/DevicePath.h>
|
|
#include <Protocol/DebugPort.h>
|
|
#include <Protocol/LoadFile.h>
|
|
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/BaseMemoryLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/MemoryAllocationLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/UefiRuntimeServicesTableLib.h>
|
|
#include <Library/UefiHiiServicesLib.h>
|
|
#include <Library/UefiLib.h>
|
|
#include <Library/HiiLib.h>
|
|
#include <Library/DevicePathLib.h>
|
|
#include <Library/PrintLib.h>
|
|
#include <Library/PlatformSecureLib.h>
|
|
#include <Library/BaseCryptLib.h>
|
|
#include <Guid/MdeModuleHii.h>
|
|
#include <Guid/AuthenticatedVariableFormat.h>
|
|
#include <Guid/FileSystemVolumeLabelInfo.h>
|
|
#include <Guid/ImageAuthentication.h>
|
|
#include <Guid/FileInfo.h>
|
|
|
|
#include "SecureBootConfigNvData.h"
|
|
|
|
//
|
|
// Tool generated IFR binary data and String package data
|
|
//
|
|
extern UINT8 SecureBootConfigBin[];
|
|
extern UINT8 SecureBootConfigDxeStrings[];
|
|
|
|
//
|
|
// Shared IFR form update data
|
|
//
|
|
extern VOID *mStartOpCodeHandle;
|
|
extern VOID *mEndOpCodeHandle;
|
|
extern EFI_IFR_GUID_LABEL *mStartLabel;
|
|
extern EFI_IFR_GUID_LABEL *mEndLabel;
|
|
|
|
#define MAX_CHAR 480
|
|
#define TWO_BYTE_ENCODE 0x82
|
|
|
|
//
|
|
// SHA-1 digest size in bytes.
|
|
//
|
|
#define SHA1_DIGEST_SIZE 20
|
|
//
|
|
// SHA-256 digest size in bytes
|
|
//
|
|
#define SHA256_DIGEST_SIZE 32
|
|
//
|
|
// SHA-384 digest size in bytes
|
|
//
|
|
#define SHA384_DIGEST_SIZE 48
|
|
//
|
|
// SHA-512 digest size in bytes
|
|
//
|
|
#define SHA512_DIGEST_SIZE 64
|
|
|
|
//
|
|
// Set max digest size as SHA512 Output (64 bytes) by far
|
|
//
|
|
#define MAX_DIGEST_SIZE SHA512_DIGEST_SIZE
|
|
|
|
#define WIN_CERT_UEFI_RSA2048_SIZE 256
|
|
|
|
//
|
|
// Support hash types
|
|
//
|
|
#define HASHALG_SHA1 0x00000000
|
|
#define HASHALG_SHA224 0x00000001
|
|
#define HASHALG_SHA256 0x00000002
|
|
#define HASHALG_SHA384 0x00000003
|
|
#define HASHALG_SHA512 0x00000004
|
|
#define HASHALG_RAW 0x00000005
|
|
#define HASHALG_MAX 0x00000005
|
|
|
|
|
|
#define SECUREBOOT_MENU_OPTION_SIGNATURE SIGNATURE_32 ('S', 'b', 'M', 'u')
|
|
#define SECUREBOOT_MENU_ENTRY_SIGNATURE SIGNATURE_32 ('S', 'b', 'M', 'r')
|
|
|
|
typedef struct {
|
|
EFI_DEVICE_PATH_PROTOCOL Header;
|
|
EFI_GUID Guid;
|
|
UINT8 VendorDefinedData[1];
|
|
} VENDOR_DEVICE_PATH_WITH_DATA;
|
|
|
|
typedef struct {
|
|
EFI_DEVICE_PATH_PROTOCOL Header;
|
|
UINT16 NetworkProtocol;
|
|
UINT16 LoginOption;
|
|
UINT64 Lun;
|
|
UINT16 TargetPortalGroupTag;
|
|
CHAR16 TargetName[1];
|
|
} ISCSI_DEVICE_PATH_WITH_NAME;
|
|
|
|
typedef enum _FILE_EXPLORER_DISPLAY_CONTEXT {
|
|
FileExplorerDisplayFileSystem,
|
|
FileExplorerDisplayDirectory,
|
|
FileExplorerDisplayUnknown
|
|
} FILE_EXPLORER_DISPLAY_CONTEXT;
|
|
|
|
typedef enum _FILE_EXPLORER_STATE {
|
|
FileExplorerStateInActive = 0,
|
|
FileExplorerStateEnrollPkFile,
|
|
FileExplorerStateEnrollKekFile,
|
|
FileExplorerStateEnrollSignatureFileToDb,
|
|
FileExplorerStateEnrollSignatureFileToDbx,
|
|
FileExplorerStateEnrollSignatureFileToDbt,
|
|
FileExplorerStateUnknown
|
|
} FILE_EXPLORER_STATE;
|
|
|
|
typedef struct {
|
|
CHAR16 *Str;
|
|
UINTN Len;
|
|
UINTN Maxlen;
|
|
} POOL_PRINT;
|
|
|
|
typedef
|
|
VOID
|
|
(*DEV_PATH_FUNCTION) (
|
|
IN OUT POOL_PRINT *Str,
|
|
IN VOID *DevPath
|
|
);
|
|
|
|
typedef struct {
|
|
UINT8 Type;
|
|
UINT8 SubType;
|
|
DEV_PATH_FUNCTION Function;
|
|
} DEVICE_PATH_STRING_TABLE;
|
|
|
|
typedef struct {
|
|
UINTN Signature;
|
|
LIST_ENTRY Head;
|
|
UINTN MenuNumber;
|
|
} SECUREBOOT_MENU_OPTION;
|
|
|
|
extern SECUREBOOT_MENU_OPTION FsOptionMenu;
|
|
extern SECUREBOOT_MENU_OPTION DirectoryMenu;
|
|
|
|
typedef struct {
|
|
UINTN Signature;
|
|
LIST_ENTRY Link;
|
|
UINTN OptionNumber;
|
|
UINT16 *DisplayString;
|
|
UINT16 *HelpString;
|
|
EFI_STRING_ID DisplayStringToken;
|
|
EFI_STRING_ID HelpStringToken;
|
|
VOID *FileContext;
|
|
} SECUREBOOT_MENU_ENTRY;
|
|
|
|
typedef struct {
|
|
EFI_HANDLE Handle;
|
|
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
|
|
EFI_FILE_HANDLE FHandle;
|
|
UINT16 *FileName;
|
|
EFI_FILE_SYSTEM_VOLUME_LABEL *Info;
|
|
|
|
BOOLEAN IsRoot;
|
|
BOOLEAN IsDir;
|
|
BOOLEAN IsRemovableMedia;
|
|
BOOLEAN IsLoadFile;
|
|
BOOLEAN IsBootLegacy;
|
|
} SECUREBOOT_FILE_CONTEXT;
|
|
|
|
|
|
//
|
|
// We define another format of 5th directory entry: security directory
|
|
//
|
|
typedef struct {
|
|
UINT32 Offset; // Offset of certificate
|
|
UINT32 SizeOfCert; // size of certificate appended
|
|
} EFI_IMAGE_SECURITY_DATA_DIRECTORY;
|
|
|
|
typedef enum{
|
|
ImageType_IA32,
|
|
ImageType_X64
|
|
} IMAGE_TYPE;
|
|
|
|
///
|
|
/// HII specific Vendor Device Path definition.
|
|
///
|
|
typedef struct {
|
|
VENDOR_DEVICE_PATH VendorDevicePath;
|
|
EFI_DEVICE_PATH_PROTOCOL End;
|
|
} HII_VENDOR_DEVICE_PATH;
|
|
|
|
typedef struct {
|
|
UINTN Signature;
|
|
|
|
EFI_HII_CONFIG_ACCESS_PROTOCOL ConfigAccess;
|
|
EFI_HII_HANDLE HiiHandle;
|
|
EFI_HANDLE DriverHandle;
|
|
|
|
FILE_EXPLORER_STATE FeCurrentState;
|
|
FILE_EXPLORER_DISPLAY_CONTEXT FeDisplayContext;
|
|
|
|
SECUREBOOT_MENU_ENTRY *MenuEntry;
|
|
SECUREBOOT_FILE_CONTEXT *FileContext;
|
|
|
|
EFI_GUID *SignatureGUID;
|
|
} SECUREBOOT_CONFIG_PRIVATE_DATA;
|
|
|
|
extern SECUREBOOT_CONFIG_PRIVATE_DATA mSecureBootConfigPrivateDateTemplate;
|
|
|
|
#define SECUREBOOT_CONFIG_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('S', 'E', 'C', 'B')
|
|
#define SECUREBOOT_CONFIG_PRIVATE_FROM_THIS(a) CR (a, SECUREBOOT_CONFIG_PRIVATE_DATA, ConfigAccess, SECUREBOOT_CONFIG_PRIVATE_DATA_SIGNATURE)
|
|
|
|
//
|
|
// Cryptograhpic Key Information
|
|
//
|
|
#pragma pack(1)
|
|
typedef struct _CPL_KEY_INFO {
|
|
UINT32 KeyLengthInBits; // Key Length In Bits
|
|
UINT32 BlockSize; // Operation Block Size in Bytes
|
|
UINT32 CipherBlockSize; // Output Cipher Block Size in Bytes
|
|
UINT32 KeyType; // Key Type
|
|
UINT32 CipherMode; // Cipher Mode for Symmetric Algorithm
|
|
UINT32 Flags; // Additional Key Property Flags
|
|
} CPL_KEY_INFO;
|
|
#pragma pack()
|
|
|
|
|
|
/**
|
|
Retrieves the size, in bytes, of the context buffer required for hash operations.
|
|
|
|
@return The size, in bytes, of the context buffer required for hash operations.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *HASH_GET_CONTEXT_SIZE)(
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
Initializes user-supplied memory pointed by HashContext as hash context for
|
|
subsequent use.
|
|
|
|
If HashContext is NULL, then ASSERT().
|
|
|
|
@param[in, out] HashContext Pointer to Context being initialized.
|
|
|
|
@retval TRUE HASH context initialization succeeded.
|
|
@retval FALSE HASH context initialization failed.
|
|
|
|
**/
|
|
typedef
|
|
BOOLEAN
|
|
(EFIAPI *HASH_INIT)(
|
|
IN OUT VOID *HashContext
|
|
);
|
|
|
|
|
|
/**
|
|
Performs digest on a data buffer of the specified length. This function can
|
|
be called multiple times to compute the digest of long or discontinuous data streams.
|
|
|
|
If HashContext is NULL, then ASSERT().
|
|
|
|
@param[in, out] HashContext Pointer to the MD5 context.
|
|
@param[in] Data Pointer to the buffer containing the data to be hashed.
|
|
@param[in] DataLength Length of Data buffer in bytes.
|
|
|
|
@retval TRUE HASH data digest succeeded.
|
|
@retval FALSE Invalid HASH context. After HashFinal function has been called, the
|
|
HASH context cannot be reused.
|
|
|
|
**/
|
|
typedef
|
|
BOOLEAN
|
|
(EFIAPI *HASH_UPDATE)(
|
|
IN OUT VOID *HashContext,
|
|
IN CONST VOID *Data,
|
|
IN UINTN DataLength
|
|
);
|
|
|
|
/**
|
|
Completes hash computation and retrieves the digest value into the specified
|
|
memory. After this function has been called, the context cannot be used again.
|
|
|
|
If HashContext is NULL, then ASSERT().
|
|
If HashValue is NULL, then ASSERT().
|
|
|
|
@param[in, out] HashContext Pointer to the MD5 context
|
|
@param[out] HashValue Pointer to a buffer that receives the HASH digest
|
|
value (16 bytes).
|
|
|
|
@retval TRUE HASH digest computation succeeded.
|
|
@retval FALSE HASH digest computation failed.
|
|
|
|
**/
|
|
typedef
|
|
BOOLEAN
|
|
(EFIAPI *HASH_FINAL)(
|
|
IN OUT VOID *HashContext,
|
|
OUT UINT8 *HashValue
|
|
);
|
|
|
|
//
|
|
// Hash Algorithm Table
|
|
//
|
|
typedef struct {
|
|
CHAR16 *Name; ///< Name for Hash Algorithm
|
|
UINTN DigestLength; ///< Digest Length
|
|
UINT8 *OidValue; ///< Hash Algorithm OID ASN.1 Value
|
|
UINTN OidLength; ///< Length of Hash OID Value
|
|
HASH_GET_CONTEXT_SIZE GetContextSize; ///< Pointer to Hash GetContentSize function
|
|
HASH_INIT HashInit; ///< Pointer to Hash Init function
|
|
HASH_UPDATE HashUpdate; ///< Pointer to Hash Update function
|
|
HASH_FINAL HashFinal; ///< Pointer to Hash Final function
|
|
} HASH_TABLE;
|
|
|
|
typedef struct {
|
|
WIN_CERTIFICATE Hdr;
|
|
UINT8 CertData[1];
|
|
} WIN_CERTIFICATE_EFI_PKCS;
|
|
|
|
|
|
/**
|
|
This function publish the SecureBoot configuration Form.
|
|
|
|
@param[in, out] PrivateData Points to SecureBoot configuration private data.
|
|
|
|
@retval EFI_SUCCESS HII Form is installed successfully.
|
|
@retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.
|
|
@retval Others Other errors as indicated.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
InstallSecureBootConfigForm (
|
|
IN OUT SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData
|
|
);
|
|
|
|
|
|
/**
|
|
This function removes SecureBoot configuration Form.
|
|
|
|
@param[in, out] PrivateData Points to SecureBoot configuration private data.
|
|
|
|
**/
|
|
VOID
|
|
UninstallSecureBootConfigForm (
|
|
IN OUT SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData
|
|
);
|
|
|
|
|
|
/**
|
|
This function allows a caller to extract the current configuration for one
|
|
or more named elements from the target driver.
|
|
|
|
@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
|
|
@param[in] Request A null-terminated Unicode string in
|
|
<ConfigRequest> format.
|
|
@param[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.
|
|
@param[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.
|
|
|
|
@retval EFI_SUCCESS The Results is filled with the requested values.
|
|
@retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.
|
|
@retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.
|
|
@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
|
|
driver.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
SecureBootExtractConfig (
|
|
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
|
|
IN CONST EFI_STRING Request,
|
|
OUT EFI_STRING *Progress,
|
|
OUT EFI_STRING *Results
|
|
);
|
|
|
|
|
|
/**
|
|
This function processes the results of changes in configuration.
|
|
|
|
@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
|
|
@param[in] Configuration A null-terminated Unicode string in <ConfigResp>
|
|
format.
|
|
@param[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.
|
|
|
|
@retval EFI_SUCCESS The Results is processed successfully.
|
|
@retval EFI_INVALID_PARAMETER Configuration is NULL.
|
|
@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
|
|
driver.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
SecureBootRouteConfig (
|
|
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.
|
|
|
|
@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
|
|
@param[in] Action Specifies the type of action taken by the browser.
|
|
@param[in] QuestionId A unique value which is sent to the original
|
|
exporting driver so that it can identify the type
|
|
of data to expect.
|
|
@param[in] Type The type of value for the question.
|
|
@param[in] Value A pointer to the data being sent to the original
|
|
exporting driver.
|
|
@param[out] ActionRequest On return, points to the action requested by the
|
|
callback function.
|
|
|
|
@retval EFI_SUCCESS The callback successfully handled the action.
|
|
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the
|
|
variable and its data.
|
|
@retval EFI_DEVICE_ERROR The variable could not be saved.
|
|
@retval EFI_UNSUPPORTED The specified Action is not supported by the
|
|
callback.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
SecureBootCallback (
|
|
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 converts an input device structure to a Unicode string.
|
|
|
|
@param[in] DevPath A pointer to the device path structure.
|
|
|
|
@return A new allocated Unicode string that represents the device path.
|
|
|
|
**/
|
|
CHAR16 *
|
|
EFIAPI
|
|
DevicePathToStr (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevPath
|
|
);
|
|
|
|
|
|
/**
|
|
Clean up the dynamic opcode at label and form specified by both LabelId.
|
|
|
|
@param[in] LabelId It is both the Form ID and Label ID for opcode deletion.
|
|
@param[in] PrivateData Module private data.
|
|
|
|
**/
|
|
VOID
|
|
CleanUpPage (
|
|
IN UINT16 LabelId,
|
|
IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData
|
|
);
|
|
|
|
|
|
/**
|
|
Update the file explorer page with the refreshed file system.
|
|
|
|
@param[in] PrivateData Module private data.
|
|
@param[in] KeyValue Key value to identify the type of data to expect.
|
|
|
|
@retval TRUE Inform the caller to create a callback packet to exit file explorer.
|
|
@retval FALSE Indicate that there is no need to exit file explorer.
|
|
|
|
**/
|
|
BOOLEAN
|
|
UpdateFileExplorer (
|
|
IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData,
|
|
IN UINT16 KeyValue
|
|
);
|
|
|
|
|
|
/**
|
|
Free resources allocated in Allocate Rountine.
|
|
|
|
@param[in, out] MenuOption Menu to be freed
|
|
|
|
**/
|
|
VOID
|
|
FreeMenu (
|
|
IN OUT SECUREBOOT_MENU_OPTION *MenuOption
|
|
);
|
|
|
|
|
|
/**
|
|
Read file content into BufferPtr, the size of the allocate buffer
|
|
is *FileSize plus AddtionAllocateSize.
|
|
|
|
@param[in] FileHandle The file to be read.
|
|
@param[in, out] BufferPtr Pointers to the pointer of allocated buffer.
|
|
@param[out] FileSize Size of input file
|
|
@param[in] AddtionAllocateSize Addtion size the buffer need to be allocated.
|
|
In case the buffer need to contain others besides the file content.
|
|
|
|
@retval EFI_SUCCESS The file was read into the buffer.
|
|
@retval EFI_INVALID_PARAMETER A parameter was invalid.
|
|
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
|
|
@retval others Unexpected error.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
ReadFileContent (
|
|
IN EFI_FILE_HANDLE FileHandle,
|
|
IN OUT VOID **BufferPtr,
|
|
OUT UINTN *FileSize,
|
|
IN UINTN AddtionAllocateSize
|
|
);
|
|
|
|
|
|
/**
|
|
Close an open file handle.
|
|
|
|
@param[in] FileHandle The file handle to close.
|
|
|
|
**/
|
|
VOID
|
|
CloseFile (
|
|
IN EFI_FILE_HANDLE FileHandle
|
|
);
|
|
|
|
|
|
/**
|
|
Converts a nonnegative integer to an octet string of a specified length.
|
|
|
|
@param[in] Integer Pointer to the nonnegative integer to be converted
|
|
@param[in] IntSizeInWords Length of integer buffer in words
|
|
@param[out] OctetString Converted octet string of the specified length
|
|
@param[in] OSSizeInBytes Intended length of resulting octet string in bytes
|
|
|
|
Returns:
|
|
|
|
@retval EFI_SUCCESS Data conversion successfully
|
|
@retval EFI_BUFFER_TOOL_SMALL Buffer is too small for output string
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
Int2OctStr (
|
|
IN CONST UINTN *Integer,
|
|
IN UINTN IntSizeInWords,
|
|
OUT UINT8 *OctetString,
|
|
IN UINTN OSSizeInBytes
|
|
);
|
|
|
|
|
|
/**
|
|
Convert a String to Guid Value.
|
|
|
|
@param[in] Str Specifies the String to be converted.
|
|
@param[in] StrLen Number of Unicode Characters of String (exclusive \0)
|
|
@param[out] Guid Return the result Guid value.
|
|
|
|
@retval EFI_SUCCESS The operation is finished successfully.
|
|
@retval EFI_NOT_FOUND Invalid string.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
StringToGuid (
|
|
IN CHAR16 *Str,
|
|
IN UINTN StrLen,
|
|
OUT EFI_GUID *Guid
|
|
);
|
|
|
|
|
|
/**
|
|
Worker function that prints an EFI_GUID into specified Buffer.
|
|
|
|
@param[in] Guid Pointer to GUID to print.
|
|
@param[in] Buffer Buffer to print Guid into.
|
|
@param[in] BufferSize Size of Buffer.
|
|
|
|
@retval Number of characters printed.
|
|
|
|
**/
|
|
UINTN
|
|
GuidToString (
|
|
IN EFI_GUID *Guid,
|
|
IN CHAR16 *Buffer,
|
|
IN UINTN BufferSize
|
|
);
|
|
|
|
#endif |