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UEFITool/ffs.h
Nikolaj Schlej 17ee8a445a Version 0.14.1 
-solved a serious bug with AMI-specific file displacement after volume
modification
2014-01-03 16:31:14 +01:00

418 lines
15 KiB
C
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/* ffs.h
Copyright (c) 2013, Nikolaj Schlej. All rights reserved.
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,
WITHWARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
*/
#ifndef __FFS_H__
#define __FFS_H__
#include <QByteArray>
#include <QString>
#include "basetypes.h"
// C++ functions
// GUID to QString routine
extern QString guidToQString(const EFI_GUID guid);
// File type to QString routine
extern QString fileTypeToQString(const UINT8 type);
// Section type to QString routine
extern QString sectionTypeToQString(const UINT8 type);
#ifdef __cplusplus
extern "C" {
#endif
// Make sure we use right packing rules
#pragma pack(push,1)
//*****************************************************************************
// EFI Capsule
//*****************************************************************************
// Capsule header
typedef struct {
EFI_GUID CapsuleGuid;
UINT32 HeaderSize;
UINT32 Flags;
UINT32 CapsuleImageSize;
} EFI_CAPSULE_HEADER;
// Capsule flags
#define EFI_CAPSULE_HEADER_FLAG_SETUP 0x00000001
#define EFI_CAPSULE_HEADER_FLAG_PERSIST_ACROSS_RESET 0x00010000
#define EFI_CAPSULE_HEADER_FLAG_POPULATE_SYSTEM_TABLE 0x00020000
// Standard EFI capsule GUID
const QByteArray EFI_CAPSULE_GUID("\xBD\x86\x66\x3B\x76\x0D\x30\x40\xB7\x0E\xB5\x51\x9E\x2F\xC5\xA0", 16);
// AMI Aptio extended capsule header
typedef struct {
EFI_CAPSULE_HEADER CapsuleHeader;
UINT16 RomImageOffset; // offset in bytes from the beginning of the capsule header to the start of
// the capsule volume
//!TODO: Enable certificate and rom layout reading
//UINT16 RomLayoutOffset; // offset to the table of the module descriptors in the capsule's volume
// that are included in the signature calculation
//FW_CERTIFICATE FWCert;
//ROM_AREA RomAreaMap[1];
} APTIO_CAPSULE_HEADER;
// AMI Aptio extended capsule GUID
const QByteArray APTIO_CAPSULE_GUID
("\x8B\xA6\x3C\x4A\x23\x77\xFB\x48\x80\x3D\x57\x8C\xC1\xFE\xC4\x4D", 16);
//*****************************************************************************
// EFI Firmware Volume
//*****************************************************************************
// Firmware block map entry
// FvBlockMap ends with an entry {0x00000000, 0x00000000}
typedef struct {
UINT32 NumBlocks;
UINT32 Length;
} EFI_FV_BLOCK_MAP_ENTRY;
// Volume header
typedef struct {
UINT8 ZeroVector[16];
EFI_GUID FileSystemGuid;
UINT64 FvLength;
UINT32 Signature;
UINT32 Attributes;
UINT16 HeaderLength;
UINT16 Checksum;
UINT16 ExtHeaderOffset; //Reserved in Revision 1
UINT8 Reserved;
UINT8 Revision;
//EFI_FV_BLOCK_MAP_ENTRY FvBlockMap[1];
} EFI_FIRMWARE_VOLUME_HEADER;
// Filesystem GUIDs
const QByteArray EFI_FIRMWARE_FILE_SYSTEM_GUID
("\xD9\x54\x93\x7A\x68\x04\x4A\x44\x81\xCE\x0B\xF6\x17\xD8\x90\xDF", 16);
const QByteArray EFI_FIRMWARE_FILE_SYSTEM2_GUID
("\x78\xE5\x8C\x8C\x3D\x8A\x1C\x4F\x99\x35\x89\x61\x85\xC3\x2D\xD3", 16);
// Firmware volume signature
const QByteArray EFI_FV_SIGNATURE("_FVH", 4);
#define EFI_FV_SIGNATURE_OFFSET 0x28
// Firmware volume attributes
// Revision 1
#define EFI_FVB_READ_DISABLED_CAP 0x00000001
#define EFI_FVB_READ_ENABLED_CAP 0x00000002
#define EFI_FVB_READ_STATUS 0x00000004
#define EFI_FVB_WRITE_DISABLED_CAP 0x00000008
#define EFI_FVB_WRITE_ENABLED_CAP 0x00000010
#define EFI_FVB_WRITE_STATUS 0x00000020
#define EFI_FVB_LOCK_CAP 0x00000040
#define EFI_FVB_LOCK_STATUS 0x00000080
#define EFI_FVB_STICKY_WRITE 0x00000200
#define EFI_FVB_MEMORY_MAPPED 0x00000400
#define EFI_FVB_ERASE_POLARITY 0x00000800
#define EFI_FVB_ALIGNMENT_CAP 0x00008000
#define EFI_FVB_ALIGNMENT_2 0x00010000
#define EFI_FVB_ALIGNMENT_4 0x00020000
#define EFI_FVB_ALIGNMENT_8 0x00040000
#define EFI_FVB_ALIGNMENT_16 0x00080000
#define EFI_FVB_ALIGNMENT_32 0x00100000
#define EFI_FVB_ALIGNMENT_64 0x00200000
#define EFI_FVB_ALIGNMENT_128 0x00400000
#define EFI_FVB_ALIGNMENT_256 0x00800000
#define EFI_FVB_ALIGNMENT_512 0x01000000
#define EFI_FVB_ALIGNMENT_1K 0x02000000
#define EFI_FVB_ALIGNMENT_2K 0x04000000
#define EFI_FVB_ALIGNMENT_4K 0x08000000
#define EFI_FVB_ALIGNMENT_8K 0x10000000
#define EFI_FVB_ALIGNMENT_16K 0x20000000
#define EFI_FVB_ALIGNMENT_32K 0x40000000
#define EFI_FVB_ALIGNMENT_64K 0x80000000
// Revision 2
#define EFI_FVB2_READ_DISABLED_CAP 0x00000001
#define EFI_FVB2_READ_ENABLED_CAP 0x00000002
#define EFI_FVB2_READ_STATUS 0x00000004
#define EFI_FVB2_WRITE_DISABLED_CAP 0x00000008
#define EFI_FVB2_WRITE_ENABLED_CAP 0x00000010
#define EFI_FVB2_WRITE_STATUS 0x00000020
#define EFI_FVB2_LOCK_CAP 0x00000040
#define EFI_FVB2_LOCK_STATUS 0x00000080
#define EFI_FVB2_STICKY_WRITE 0x00000200
#define EFI_FVB2_MEMORY_MAPPED 0x00000400
#define EFI_FVB2_ERASE_POLARITY 0x00000800
#define EFI_FVB2_READ_LOCK_CAP 0x00001000
#define EFI_FVB2_READ_LOCK_STATUS 0x00002000
#define EFI_FVB2_WRITE_LOCK_CAP 0x00004000
#define EFI_FVB2_WRITE_LOCK_STATUS 0x00008000
#define EFI_FVB2_ALIGNMENT 0x001F0000
#define EFI_FVB2_ALIGNMENT_1 0x00000000
#define EFI_FVB2_ALIGNMENT_2 0x00010000
#define EFI_FVB2_ALIGNMENT_4 0x00020000
#define EFI_FVB2_ALIGNMENT_8 0x00030000
#define EFI_FVB2_ALIGNMENT_16 0x00040000
#define EFI_FVB2_ALIGNMENT_32 0x00050000
#define EFI_FVB2_ALIGNMENT_64 0x00060000
#define EFI_FVB2_ALIGNMENT_128 0x00070000
#define EFI_FVB2_ALIGNMENT_256 0x00080000
#define EFI_FVB2_ALIGNMENT_512 0x00090000
#define EFI_FVB2_ALIGNMENT_1K 0x000A0000
#define EFI_FVB2_ALIGNMENT_2K 0x000B0000
#define EFI_FVB2_ALIGNMENT_4K 0x000C0000
#define EFI_FVB2_ALIGNMENT_8K 0x000D0000
#define EFI_FVB2_ALIGNMENT_16K 0x000E0000
#define EFI_FVB2_ALIGNMENT_32K 0x000F0000
#define EFI_FVB2_ALIGNMENT_64K 0x00100000
#define EFI_FVB2_ALIGNMENT_128K 0x00110000
#define EFI_FVB2_ALIGNMENT_256K 0x00120000
#define EFI_FVB2_ALIGNMENT_512K 0x00130000
#define EFI_FVB2_ALIGNMENT_1M 0x00140000
#define EFI_FVB2_ALIGNMENT_2M 0x00150000
#define EFI_FVB2_ALIGNMENT_4M 0x00160000
#define EFI_FVB2_ALIGNMENT_8M 0x00170000
#define EFI_FVB2_ALIGNMENT_16M 0x00180000
#define EFI_FVB2_ALIGNMENT_32M 0x00190000
#define EFI_FVB2_ALIGNMENT_64M 0x001A0000
#define EFI_FVB2_ALIGNMENT_128M 0x001B0000
#define EFI_FVB2_ALIGNMENT_256M 0x001C0000
#define EFI_FVB2_ALIGNMENT_512M 0x001D0000
#define EFI_FVB2_ALIGNMENT_1G 0x001E0000
#define EFI_FVB2_ALIGNMENT_2G 0x001F0000
#define EFI_FVB2_WEAK_ALIGNMENT 0x80000000
// Extended firmware volume header
typedef struct {
EFI_GUID FvName;
UINT32 ExtHeaderSize;
} EFI_FIRMWARE_VOLUME_EXT_HEADER;
// Extended header entry
// The extended header entries follow each other and are
// terminated by ExtHeaderType EFI_FV_EXT_TYPE_END
#define EFI_FV_EXT_TYPE_END 0x00
typedef struct {
UINT16 ExtEntrySize;
UINT16 ExtEntryType;
} EFI_FIRMWARE_VOLUME_EXT_ENTRY;
// GUID that maps OEM file types to GUIDs
#define EFI_FV_EXT_TYPE_OEM_TYPE 0x01
typedef struct {
EFI_FIRMWARE_VOLUME_EXT_ENTRY Header;
UINT32 TypeMask;
//EFI_GUID Types[1];
} EFI_FIRMWARE_VOLUME_EXT_HEADER_OEM_TYPE;
#define EFI_FV_EXT_TYPE_GUID_TYPE 0x02
typedef struct {
EFI_FIRMWARE_VOLUME_EXT_ENTRY Header;
EFI_GUID FormatType;
//UINT8 Data[];
} EFI_FIRMWARE_VOLUME_EXT_ENTRY_GUID_TYPE;
// Volume header 16bit checksum calculation routine
extern UINT16 calculateChecksum16(UINT16* buffer, UINT32 bufferSize);
//*****************************************************************************
// EFI FFS File
//*****************************************************************************
// Integrity check
typedef union {
struct {
UINT8 Header;
UINT8 File;
} Checksum;
UINT16 TailReference; // Revision 1
UINT16 Checksum16; // Revision 2
} EFI_FFS_INTEGRITY_CHECK;
// File header
typedef struct {
EFI_GUID Name;
EFI_FFS_INTEGRITY_CHECK IntegrityCheck;
UINT8 Type;
UINT8 Attributes;
UINT8 Size[3];
UINT8 State;
} EFI_FFS_FILE_HEADER;
// Large file header
//typedef struct {
// EFI_GUID Name;
// EFI_FFS_INTEGRITY_CHECK IntegrityCheck;
// UINT8 Type;
// UINT8 Attributes;
// UINT8 Size[3];
// UINT8 State;
// UINT32 ExtendedSize;
//} EFI_FFS_FILE_HEADER2;
// Standard data checksum, used if FFS_ATTRIB_CHECKSUM is clear
#define FFS_FIXED_CHECKSUM 0x5A
#define FFS_FIXED_CHECKSUM2 0xAA
// File types
#define EFI_FV_FILETYPE_ALL 0x00
#define EFI_FV_FILETYPE_RAW 0x01
#define EFI_FV_FILETYPE_FREEFORM 0x02
#define EFI_FV_FILETYPE_SECURITY_CORE 0x03
#define EFI_FV_FILETYPE_PEI_CORE 0x04
#define EFI_FV_FILETYPE_DXE_CORE 0x05
#define EFI_FV_FILETYPE_PEIM 0x06
#define EFI_FV_FILETYPE_DRIVER 0x07
#define EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER 0x08
#define EFI_FV_FILETYPE_APPLICATION 0x09
#define EFI_FV_FILETYPE_SMM 0x0A
#define EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE 0x0B
#define EFI_FV_FILETYPE_COMBINED_SMM_DXE 0x0C
#define EFI_FV_FILETYPE_SMM_CORE 0x0D
#define EFI_FV_FILETYPE_OEM_MIN 0xC0
#define EFI_FV_FILETYPE_OEM_MAX 0xDF
#define EFI_FV_FILETYPE_DEBUG_MIN 0xE0
#define EFI_FV_FILETYPE_DEBUG_MAX 0xEF
#define EFI_FV_FILETYPE_PAD 0xF0
#define EFI_FV_FILETYPE_FFS_MIN 0xF0
#define EFI_FV_FILETYPE_FFS_MAX 0xFF
// File attributes
#define FFS_ATTRIB_RESERVED 0x80 // ErasePolarity value can be obtained from that bit
#define FFS_ATTRIB_TAIL_PRESENT 0x01
#define FFS_ATTRIB_RECOVERY 0x02
#define FFS_ATTRIB_FIXED 0x04
#define FFS_ATTRIB_DATA_ALIGNMENT 0x38
#define FFS_ATTRIB_CHECKSUM 0x40
//#define FFS_ATTRIB_LARGE_FILE 0x01 //This attribute is removed in new PI 1.3 specification, nice
// FFS alignment table
extern const UINT8 ffsAlignmentTable[];
// File states
#define EFI_FILE_HEADER_CONSTRUCTION 0x01
#define EFI_FILE_HEADER_VALID 0x02
#define EFI_FILE_DATA_VALID 0x04
#define EFI_FILE_MARKED_FOR_UPDATE 0x08
#define EFI_FILE_DELETED 0x10
#define EFI_FILE_HEADER_INVALID 0x20
#define EFI_FILE_ERASE_POLARITY 0x80
// Volume top file
const QByteArray EFI_FFS_VOLUME_TOP_FILE_GUID
("\x2E\x06\xA0\x1B\x79\xC7\x82\x45\x85\x66\x33\x6A\xE8\xF7\x8F\x09", 16);
// AMI volume top file
// This file must also be located near the end volume, right before VTF
const QByteArray EFI_AMI_FFS_FILE_BEFORE_VTF_GUID
("\x50\x9F\xE5\xD1\xC3\xE8\x45\x45\xBF\x61\x11\xF0\x02\x23\x3C\x97", 16);
// Offset of this file
#define EFI_AMI_FFS_FILE_BEFORE_VTF_OFFSET 0xEF0
// FFS size conversion routines
extern VOID uint32ToUint24(UINT32 size, UINT8* ffsSize);
extern UINT32 uint24ToUint32(UINT8* ffsSize);
// FFS file 8bit checksum calculation routine
extern UINT8 calculateChecksum8(UINT8* buffer, UINT32 bufferSize);
//*****************************************************************************
// EFI FFS File Section
//*****************************************************************************
// Common section header
typedef struct {
UINT8 Size[3];
UINT8 Type;
} EFI_COMMON_SECTION_HEADER;
// Large file common section header
//typedef struct {
// UINT8 Size[3]; //Must be 0xFFFFFF for this header to be used
// UINT8 Type;
// UINT32 ExtendedSize;
//} EFI_COMMON_SECTION_HEADER2;
// File section types
#define EFI_SECTION_ALL 0x00 // Impossible attribute for file in the FS
// Encapsulation section types
#define EFI_SECTION_COMPRESSION 0x01
#define EFI_SECTION_GUID_DEFINED 0x02
#define EFI_SECTION_DISPOSABLE 0x03
// Leaf section types
#define EFI_SECTION_PE32 0x10
#define EFI_SECTION_PIC 0x11
#define EFI_SECTION_TE 0x12
#define EFI_SECTION_DXE_DEPEX 0x13
#define EFI_SECTION_VERSION 0x14
#define EFI_SECTION_USER_INTERFACE 0x15
#define EFI_SECTION_COMPATIBILITY16 0x16
#define EFI_SECTION_FIRMWARE_VOLUME_IMAGE 0x17
#define EFI_SECTION_FREEFORM_SUBTYPE_GUID 0x18
#define EFI_SECTION_RAW 0x19
#define EFI_SECTION_PEI_DEPEX 0x1B
#define EFI_SECTION_SMM_DEPEX 0x1C
// Compression section
typedef struct {
UINT8 Size[3];
UINT8 Type;
UINT32 UncompressedLength;
UINT8 CompressionType;
} EFI_COMPRESSION_SECTION;
// Compression types
#define EFI_NOT_COMPRESSED 0x00
#define EFI_STANDARD_COMPRESSION 0x01
#define EFI_CUSTOMIZED_COMPRESSION 0x02
//GUID defined section
typedef struct {
UINT8 Size[3];
UINT8 Type;
EFI_GUID SectionDefinitionGuid;
UINT16 DataOffset;
UINT16 Attributes;
} EFI_GUID_DEFINED_SECTION;
// Attributes for GUID defined section
#define EFI_GUIDED_SECTION_PROCESSING_REQUIRED 0x01
#define EFI_GUIDED_SECTION_AUTH_STATUS_VALID 0x02
// Version section
typedef struct {
UINT8 Size[3];
UINT8 Type;
UINT16 BuildNumber;
} EFI_VERSION_SECTION;
// Freeform subtype GUID section
typedef struct {
UINT8 Size[3];
UINT8 Type;
EFI_GUID SubTypeGuid;
} EFI_FREEFORM_SUBTYPE_GUID_SECTION;
// Other sections
typedef EFI_COMMON_SECTION_HEADER EFI_DISPOSABLE_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_RAW_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_DXE_DEPEX_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_PEI_DEPEX_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_SMM_DEPEX_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_PE32_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_PIC_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_TE_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_COMPATIBILITY16_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_FIRMWARE_VOLUME_IMAGE_SECTION;
typedef EFI_COMMON_SECTION_HEADER EFI_USER_INTERFACE_SECTION;
//Section routines
extern UINT32 sizeOfSectionHeaderOfType(const UINT8 type);
// Restore previous packing rules
#pragma pack(pop)
#ifdef __cplusplus
}
#endif
#endif
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