UDF revision 2.00 or higher is the only supported.
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Cc: Star Zeng <star.z...@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Cc: Laszlo Ersek <ler...@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Paulo Alcantara <pca...@zytor.com>
---
MdeModulePkg/MdeModulePkg.dec | 6 +
.../Universal/Disk/PartitionDxe/Partition.c | 3 +-
.../Universal/Disk/PartitionDxe/Partition.h | 41 ++-
.../Universal/Disk/PartitionDxe/PartitionDxe.inf | 10 +-
MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c | 335 +++++++++++++++++++++
MdePkg/Include/IndustryStandard/Udf.h | 78 +++++
6 files changed, 465 insertions(+), 8 deletions(-)
create mode 100644 MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c
create mode 100644 MdePkg/Include/IndustryStandard/Udf.h
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 593bff357a..3bc3b65ebb 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -794,6 +794,12 @@
# @Prompt Turn on PS2 Mouse Extended Verification
gEfiMdeModulePkgTokenSpaceGuid.PcdPs2MouseExtendedVerification|TRUE|BOOLEAN|0x00010075
+ ## Indicates if UDF/ECMA-167 filesystem will be supported.<BR><BR>
+ # TRUE - UDF/ECMA-167 filesystem will be supported.<BR>
+ # FALSE - UDF/ECMA-167 filesystem will not be supported.<BR>
+ # @Prompt Enable UDF/ECMA-167 filesystem support.
+
gEfiMdeModulePkgTokenSpaceGuid.PcdUdfFileSystemSupport|FALSE|BOOLEAN|0x00010077
+
## Indicates whether 64-bit PCI MMIO BARs should degrade to 32-bit in the
presence of an option ROM
# On X64 platforms, Option ROMs may contain code that executes in the
context of a legacy BIOS (CSM),
# which requires that all PCI MMIO BARs are located below 4 GB
diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
b/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
index 5a7d119b43..152bc72738 100644
--- a/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
+++ b/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
@@ -2,7 +2,7 @@
Partition driver that produces logical BlockIo devices from a physical
BlockIo device. The logical BlockIo devices are based on the format
of the raw block devices media. Currently "El Torito CD-ROM", Legacy
- MBR, and GPT partition schemes are supported.
+ MBR, GPT partition and UDF/ECMA-167 volume schemes are supported.
Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
@@ -45,6 +45,7 @@ PARTITION_DETECT_ROUTINE mPartitionDetectRoutineTable[] = {
PartitionInstallGptChildHandles,
PartitionInstallElToritoChildHandles,
PartitionInstallMbrChildHandles,
+ PartitionInstallUdfChildHandles,
NULL
};
diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.h
b/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.h
index f2f6185317..a205e3e47b 100644
--- a/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.h
+++ b/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.h
@@ -1,8 +1,8 @@
/** @file
- Partition driver that produces logical BlockIo devices from a physical
+ Partition driver that produces logical BlockIo devices from a physical
BlockIo device. The logical BlockIo devices are based on the format
- of the raw block devices media. Currently "El Torito CD-ROM", Legacy
- MBR, and GPT partition schemes are supported.
+ of the raw block devices media. Currently "El Torito CD-ROM", Legacy
+ MBR, GPT partition and UDF/ECMA-167 volume schemes are supported.
Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
@@ -15,8 +15,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER
EXPRESS OR IMPLIED.
**/
-#ifndef _PARTITION_H_
-#define _PARTITION_H_
+#ifndef _PARTITION_H_
+#define _PARTITION_H_
#include <Uefi.h>
#include <Protocol/BlockIo.h>
@@ -39,6 +39,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER
EXPRESS OR IMPLIED.
#include <IndustryStandard/Mbr.h>
#include <IndustryStandard/ElTorito.h>
+#include <IndustryStandard/Udf.h>
//
@@ -428,7 +429,7 @@ PartitionInstallElToritoChildHandles (
@param[in] BlockIo Parent BlockIo interface.
@param[in] BlockIo2 Parent BlockIo2 interface.
@param[in] DevicePath Parent Device Path.
-
+
@retval EFI_SUCCESS A child handle was added.
@retval EFI_MEDIA_CHANGED Media change was detected.
@retval Others MBR partition was not found.
@@ -445,6 +446,34 @@ PartitionInstallMbrChildHandles (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
);
+/**
+ Install child handles if the Handle supports UDF/ECMA-167 volume format.
+
+ @param[in] This Calling context.
+ @param[in] Handle Parent Handle.
+ @param[in] DiskIo Parent DiskIo interface.
+ @param[in] DiskIo2 Parent DiskIo2 interface.
+ @param[in] BlockIo Parent BlockIo interface.
+ @param[in] BlockIo2 Parent BlockIo2 interface.
+ @param[in] DevicePath Parent Device Path
+
+
+ @retval EFI_SUCCESS Child handle(s) was added.
+ @retval EFI_MEDIA_CHANGED Media changed Detected.
+ @retval other no child handle was added.
+
+**/
+EFI_STATUS
+PartitionInstallUdfChildHandles (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Handle,
+ IN EFI_DISK_IO_PROTOCOL *DiskIo,
+ IN EFI_DISK_IO2_PROTOCOL *DiskIo2,
+ IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
+ IN EFI_BLOCK_IO2_PROTOCOL *BlockIo2,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ );
+
typedef
EFI_STATUS
(*PARTITION_DETECT_ROUTINE) (
diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
b/MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
index 48212773e8..1dfe5509a0 100644
--- a/MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
+++ b/MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
@@ -4,7 +4,7 @@
# This module produces the logical Block I/O device that represents
# the bytes from Start to End of the Parent Block I/O device.
# The partition of physical BlockIo device supported is one of legacy MBR,
GPT,
-# and "El Torito" partitions.
+# "El Torito" partitions and UDF/ECMA-167 volumes.
#
# Caution: This module requires additional review when modified.
# This driver will have external input - disk partition.
@@ -46,12 +46,14 @@
Mbr.c
Gpt.c
ElTorito.c
+ Udf.c
Partition.c
Partition.h
[Packages]
MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
[LibraryClasses]
@@ -63,6 +65,7 @@
BaseLib
UefiDriverEntryPoint
DebugLib
+ PcdLib
[Guids]
@@ -86,5 +89,10 @@
gEfiDiskIoProtocolGuid ## TO_START
gEfiDiskIo2ProtocolGuid ## TO_START
+
+[FeaturePcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdUdfFileSystemSupport ## CONSUMES
+
+
[UserExtensions.TianoCore."ExtraFiles"]
PartitionDxeExtra.uni
diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c
b/MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c
new file mode 100644
index 0000000000..333b93d666
--- /dev/null
+++ b/MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c
@@ -0,0 +1,335 @@
+/** @file
+ Decode a UDF/ECMA-167 formatted media.
+
+ Copyright (C) 2014-2017 Paulo Alcantara <pca...@zytor.com>
+
+ 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.
+**/
+
+#include "Partition.h"
+
+EFI_GUID gUdfVolumeSignatureGuid = {
+ 0xC5BD4D42, 0x1A76, 0x4996,
+ { 0x89, 0x56, 0x73, 0xCD, 0xA3, 0x26, 0xCD, 0x0A }
+};
+
+//
+// The UDF/ECMA-167 file system driver only supports UDF revision 2.00 or
+// higher.
+//
+// Note the "NSR03" identifier.
+//
+UDF_STANDARD_IDENTIFIER gUdfStandardIdentifiers[NR_STANDARD_IDENTIFIERS] = {
+ { { 'B', 'E', 'A', '0', '1' } },
+ { { 'N', 'S', 'R', '0', '3' } },
+ { { 'T', 'E', 'A', '0', '1' } },
+};
+
+typedef struct {
+ VENDOR_DEVICE_PATH DevicePath;
+ EFI_DEVICE_PATH_PROTOCOL End;
+} UDF_DEVICE_PATH;
+
+//
+// C5BD4D42-1A76-4996-8956-73CDA326CD0A
+//
+#define EFI_UDF_DEVICE_PATH_GUID \
+ { 0xC5BD4D42, 0x1A76, 0x4996, \
+ { 0x89, 0x56, 0x73, 0xCD, 0xA3, 0x26, 0xCD, 0x0A } \
+ }
+
+UDF_DEVICE_PATH gUdfDevicePath = {
+ { { MEDIA_DEVICE_PATH, MEDIA_VENDOR_DP,
+ { sizeof (VENDOR_DEVICE_PATH), 0 } },
+ EFI_UDF_DEVICE_PATH_GUID
+ },
+ { END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }
+ }
+};
+
+EFI_STATUS
+FindAnchorVolumeDescriptorPointer (
+ IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
+ IN EFI_DISK_IO_PROTOCOL *DiskIo,
+ OUT UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER *AnchorPoint
+ )
+{
+ EFI_STATUS Status;
+ UINT32 BlockSize;
+ EFI_LBA EndLBA;
+
+ BlockSize = BlockIo->Media->BlockSize;
+ EndLBA = BlockIo->Media->LastBlock;
+
+ //
+ // Look for AVDP at LBA 256.
+ //
+ Status = DiskIo->ReadDisk (
+ DiskIo,
+ BlockIo->Media->MediaId,
+ 256ULL * BlockSize,
+ sizeof (UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER),
+ (VOID *)AnchorPoint
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (IS_AVDP (AnchorPoint)) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Look for AVDP at last LBA - 256.
+ //
+ Status = DiskIo->ReadDisk (
+ DiskIo,
+ BlockIo->Media->MediaId,
+ MultU64x32 (EndLBA - 256, BlockSize),
+ sizeof (UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER),
+ (VOID *)AnchorPoint
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (IS_AVDP (AnchorPoint)) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Look for AVDP at last LBA.
+ //
+ Status = DiskIo->ReadDisk (
+ DiskIo,
+ BlockIo->Media->MediaId,
+ MultU64x32 (EndLBA, BlockSize),
+ sizeof (UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER),
+ (VOID *)AnchorPoint
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (IS_AVDP (AnchorPoint)) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // No AVDP found in this media.
+ //
+ return EFI_VOLUME_CORRUPTED;
+}
+
+EFI_STATUS
+SupportUdfFileSystem (
+ IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
+ IN EFI_DISK_IO_PROTOCOL *DiskIo
+ )
+{
+ EFI_STATUS Status;
+ UINT64 Offset;
+ UINT64 EndDiskOffset;
+ UDF_VOLUME_DESCRIPTOR VolDescriptor;
+ UDF_VOLUME_DESCRIPTOR TerminatingVolDescriptor;
+ UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER AnchorPoint;
+
+ ZeroMem ((VOID *)&TerminatingVolDescriptor, sizeof (UDF_VOLUME_DESCRIPTOR));
+
+ //
+ // Start Volume Recognition Sequence.
+ //
+ EndDiskOffset = MultU64x32 (BlockIo->Media->LastBlock,
BlockIo->Media->BlockSize);
+
+ for (Offset = UDF_VRS_START_OFFSET; Offset < EndDiskOffset;
+ Offset += UDF_LOGICAL_SECTOR_SIZE) {
+ Status = DiskIo->ReadDisk (
+ DiskIo,
+ BlockIo->Media->MediaId,
+ Offset,
+ sizeof (UDF_VOLUME_DESCRIPTOR),
+ (VOID *)&VolDescriptor
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (CompareMem ((VOID *)&VolDescriptor.StandardIdentifier,
+ (VOID *)&gUdfStandardIdentifiers[BEA_IDENTIFIER],
+ UDF_STANDARD_IDENTIFIER_LENGTH) == 0) {
+ break;
+ }
+
+ if ((CompareMem ((VOID *)&VolDescriptor.StandardIdentifier,
+ (VOID *)UDF_CDROM_VOLUME_IDENTIFIER,
+ UDF_STANDARD_IDENTIFIER_LENGTH) != 0) ||
+ CompareMem ((VOID *)&VolDescriptor,
+ (VOID *)&TerminatingVolDescriptor,
+ sizeof (UDF_VOLUME_DESCRIPTOR)) == 0) {
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ //
+ // Look for "NSR03" identifier in the Extended Area.
+ //
+ Offset += UDF_LOGICAL_SECTOR_SIZE;
+ if (Offset >= EndDiskOffset) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = DiskIo->ReadDisk (
+ DiskIo,
+ BlockIo->Media->MediaId,
+ Offset,
+ sizeof (UDF_VOLUME_DESCRIPTOR),
+ (VOID *)&VolDescriptor
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (CompareMem ((VOID *)&VolDescriptor.StandardIdentifier,
+ (VOID *)&gUdfStandardIdentifiers[VSD_IDENTIFIER],
+ UDF_STANDARD_IDENTIFIER_LENGTH) != 0) {
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Look for "TEA01" identifier in the Extended Area
+ //
+ Offset += UDF_LOGICAL_SECTOR_SIZE;
+ if (Offset >= EndDiskOffset) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = DiskIo->ReadDisk (
+ DiskIo,
+ BlockIo->Media->MediaId,
+ Offset,
+ sizeof (UDF_VOLUME_DESCRIPTOR),
+ (VOID *)&VolDescriptor
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (CompareMem ((VOID *)&VolDescriptor.StandardIdentifier,
+ (VOID *)&gUdfStandardIdentifiers[TEA_IDENTIFIER],
+ UDF_STANDARD_IDENTIFIER_LENGTH) != 0) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = FindAnchorVolumeDescriptorPointer (BlockIo, DiskIo, &AnchorPoint);
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Install child handles if the Handle supports UDF/ECMA-167 volume format.
+
+ @param[in] This Calling context.
+ @param[in] Handle Parent Handle.
+ @param[in] DiskIo Parent DiskIo interface.
+ @param[in] DiskIo2 Parent DiskIo2 interface.
+ @param[in] BlockIo Parent BlockIo interface.
+ @param[in] BlockIo2 Parent BlockIo2 interface.
+ @param[in] DevicePath Parent Device Path
+
+
+ @retval EFI_SUCCESS Child handle(s) was added.
+ @retval EFI_MEDIA_CHANGED Media changed Detected.
+ @retval other no child handle was added.
+
+**/
+EFI_STATUS
+PartitionInstallUdfChildHandles (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Handle,
+ IN EFI_DISK_IO_PROTOCOL *DiskIo,
+ IN EFI_DISK_IO2_PROTOCOL *DiskIo2,
+ IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
+ IN EFI_BLOCK_IO2_PROTOCOL *BlockIo2,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+{
+ EFI_STATUS Status;
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_DEVICE_PATH_PROTOCOL *LastDevicePathNode;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePathNode;
+ EFI_GUID *VendorDevGuid;
+ EFI_GUID UdfDevGuid = EFI_UDF_DEVICE_PATH_GUID;
+ EFI_PARTITION_INFO_PROTOCOL PartitionInfo;
+
+ Media = BlockIo->Media;
+
+ //
+ // Check if platform supports UDF file system.
+ //
+ if (!FeaturePcdGet (PcdUdfFileSystemSupport)) {
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Check if UDF logical block size is multiple of underlying device block
+ // size.
+ //
+ if ((UDF_LOGICAL_SECTOR_SIZE % Media->BlockSize) != 0 ||
+ (Media->BlockSize > UDF_LOGICAL_SECTOR_SIZE)) {
+ return EFI_NOT_FOUND;
+ }
+
+ Status = SupportUdfFileSystem (BlockIo, DiskIo);
+ if (EFI_ERROR (Status)) {
+ return EFI_NOT_FOUND;
+ }
+
+ LastDevicePathNode = NULL;
+ DevicePathNode = DevicePath;
+ while (!IsDevicePathEnd (DevicePathNode)) {
+ LastDevicePathNode = DevicePathNode;
+ DevicePathNode = NextDevicePathNode (DevicePathNode);
+ }
+ if (LastDevicePathNode) {
+ VendorDevGuid = (EFI_GUID *)((UINT8 *)LastDevicePathNode +
+ OFFSET_OF (VENDOR_DEVICE_PATH, Guid));
+ if (DevicePathSubType (LastDevicePathNode) == MEDIA_VENDOR_DP &&
+ CompareGuid (VendorDevGuid, &UdfDevGuid)) {
+ return EFI_NOT_FOUND;
+ }
+ }
+
+ ZeroMem (&PartitionInfo, sizeof (EFI_PARTITION_INFO_PROTOCOL));
+ PartitionInfo.Revision = EFI_PARTITION_INFO_PROTOCOL_REVISION;
+ PartitionInfo.Type = PARTITION_TYPE_OTHER;
+
+ Status = PartitionInstallChildHandle (
+ This,
+ Handle,
+ DiskIo,
+ DiskIo2,
+ BlockIo,
+ BlockIo2,
+ DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gUdfDevicePath,
+ &PartitionInfo,
+ 0,
+ Media->LastBlock,
+ Media->BlockSize
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = EFI_NOT_FOUND;
+ }
+
+ return Status;
+}
diff --git a/MdePkg/Include/IndustryStandard/Udf.h
b/MdePkg/Include/IndustryStandard/Udf.h
new file mode 100644
index 0000000000..d571424315
--- /dev/null
+++ b/MdePkg/Include/IndustryStandard/Udf.h
@@ -0,0 +1,78 @@
+/** @file
+ UDF/ECMA-167 Volume and File Structure Format Definition.
+
+ Copyright (C) 2014-2017 Paulo Alcantara <pca...@zytor.com>
+
+ 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 _UDF_H_
+#define _UDF_H_
+
+#define UDF_LOGICAL_SECTOR_SHIFT 11
+#define UDF_LOGICAL_SECTOR_SIZE ((UINT64)(1ULL << UDF_LOGICAL_SECTOR_SHIFT))
+#define UDF_VRS_START_OFFSET ((UINT64)(16ULL << UDF_LOGICAL_SECTOR_SHIFT))
+#define UDF_STANDARD_IDENTIFIER_LENGTH 5
+#define UDF_CDROM_VOLUME_IDENTIFIER "CD001"
+
+#define _GET_TAG_ID(_Pointer) \
+ (((UDF_DESCRIPTOR_TAG *) (_Pointer))->TagIdentifier)
+
+#define IS_PVD(_Pointer) \
+ ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 1))
+#define IS_AVDP(_Pointer) \
+ ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 2))
+
+typedef struct {
+ UINT8 StandardIdentifier[UDF_STANDARD_IDENTIFIER_LENGTH];
+} UDF_STANDARD_IDENTIFIER;
+
+enum {
+ BEA_IDENTIFIER,
+ VSD_IDENTIFIER,
+ TEA_IDENTIFIER,
+ NR_STANDARD_IDENTIFIERS,
+};
+
+#pragma pack(1)
+
+typedef struct {
+ UINT16 TagIdentifier;
+ UINT16 DescriptorVersion;
+ UINT8 TagChecksum;
+ UINT8 Reserved;
+ UINT16 TagSerialNumber;
+ UINT16 DescriptorCRC;
+ UINT16 DescriptorCRCLength;
+ UINT32 TagLocation;
+} UDF_DESCRIPTOR_TAG;
+
+typedef struct {
+ UINT32 ExtentLength;
+ UINT32 ExtentLocation;
+} UDF_EXTENT_AD;
+
+typedef struct {
+ UINT8 StructureType;
+ UINT8 StandardIdentifier[UDF_STANDARD_IDENTIFIER_LENGTH];
+ UINT8 StructureVersion;
+ UINT8 Reserved;
+ UINT8 StructureData[2040];
+} UDF_VOLUME_DESCRIPTOR;
+
+typedef struct {
+ UDF_DESCRIPTOR_TAG DescriptorTag;
+ UDF_EXTENT_AD MainVolumeDescriptorSequenceExtent;
+ UDF_EXTENT_AD ReserveVolumeDescriptorSequenceExtent;
+ UINT8 Reserved[480];
+} UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER;
+
+#pragma pack()
+
+#endif // _UDF_H_
--
2.11.0
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