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MdeModulePkg: Remove the UDF/ECMA-167 file system support codes

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The UDF feature is not ready for production. Remove it from the UDK2018
branch.

This commit removes the UDF/ECMA-167 file system related code changes
done within:
  MdeModulePkg/Universal/Disk/PartitionDxe/
  MdeModulePkg/Universal/Disk/UdfDxe/
  MdeModulePkg/MdeModulePkg.dsc

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
This commit is contained in:
Hao Wu
2017-12-28 09:58:53 +08:00
parent fc0eeeb5c7
commit 7412c459f8
12 changed files with 8 additions and 6282 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
MdeModulePkg/MdeModulePkg.dsc
View File

@@ -349,7 +349,6 @@
MdeModulePkg/Universal/PrintDxe/PrintDxe.inf MdeModulePkg/Universal/PrintDxe/PrintDxe.inf
MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe.inf MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe.inf
MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
MdeModulePkg/Universal/Disk/UdfDxe/UdfDxe.inf
MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
MdeModulePkg/Universal/Disk/CdExpressPei/CdExpressPei.inf MdeModulePkg/Universal/Disk/CdExpressPei/CdExpressPei.inf
MdeModulePkg/Universal/DriverSampleDxe/DriverSampleDxe.inf MdeModulePkg/Universal/DriverSampleDxe/DriverSampleDxe.inf

10
MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
View File

@@ -1,7 +1,7 @@
/** @file /** @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 BlockIo device. The logical BlockIo devices are based on the format
of the raw block devices media. Currently "El Torito CD-ROM", UDF, Legacy of the raw block devices media. Currently "El Torito CD-ROM", Legacy
MBR, and GPT partition schemes are supported. MBR, and GPT partition schemes are supported.
Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR> Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
@@ -43,8 +43,8 @@ EFI_DRIVER_BINDING_PROTOCOL gPartitionDriverBinding = {
// //
PARTITION_DETECT_ROUTINE mPartitionDetectRoutineTable[] = { PARTITION_DETECT_ROUTINE mPartitionDetectRoutineTable[] = {
PartitionInstallGptChildHandles, PartitionInstallGptChildHandles,
PartitionInstallElToritoChildHandles,
PartitionInstallMbrChildHandles, PartitionInstallMbrChildHandles,
PartitionInstallUdfChildHandles,
NULL NULL
}; };
@@ -305,9 +305,9 @@ PartitionDriverBindingStart (
if (BlockIo->Media->MediaPresent || if (BlockIo->Media->MediaPresent ||
(BlockIo->Media->RemovableMedia && !BlockIo->Media->LogicalPartition)) { (BlockIo->Media->RemovableMedia && !BlockIo->Media->LogicalPartition)) {
// //
// Try for GPT, then legacy MBR partition types, and then UDF and El Torito. // Try for GPT, then El Torito, and then legacy MBR partition types. If the
// If the media supports a given partition type install child handles to // media supports a given partition type install child handles to represent
// represent the partitions described by the media. // the partitions described by the media.
// //
Routine = &mPartitionDetectRoutineTable[0]; Routine = &mPartitionDetectRoutineTable[0];
while (*Routine != NULL) { while (*Routine != NULL) {

32
MdeModulePkg/Universal/Disk/PartitionDxe/Partition.h
View File

@@ -1,7 +1,7 @@
/** @file /** @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 BlockIo device. The logical BlockIo devices are based on the format
of the raw block devices media. Currently "El Torito CD-ROM", UDF, Legacy of the raw block devices media. Currently "El Torito CD-ROM", Legacy
MBR, and GPT partition schemes are supported. MBR, and GPT partition schemes are supported.
Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR> Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
@@ -39,7 +39,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <IndustryStandard/Mbr.h> #include <IndustryStandard/Mbr.h>
#include <IndustryStandard/ElTorito.h> #include <IndustryStandard/ElTorito.h>
#include <IndustryStandard/Udf.h>
// //
// Partition private data // Partition private data
@@ -445,34 +445,6 @@ PartitionInstallMbrChildHandles (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath 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 typedef
EFI_STATUS EFI_STATUS
(*PARTITION_DETECT_ROUTINE) ( (*PARTITION_DETECT_ROUTINE) (

3
MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
View File

@@ -4,7 +4,7 @@
# This module produces the logical Block I/O device that represents # 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 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, # The partition of physical BlockIo device supported is one of legacy MBR, GPT,
# UDF and "El Torito" partitions. # and "El Torito" partitions.
# #
# Caution: This module requires additional review when modified. # Caution: This module requires additional review when modified.
# This driver will have external input - disk partition. # This driver will have external input - disk partition.
@@ -46,7 +46,6 @@
Mbr.c Mbr.c
Gpt.c Gpt.c
ElTorito.c ElTorito.c
Udf.c
Partition.c Partition.c
Partition.h Partition.h

763
MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c
View File

@@ -1,763 +0,0 @@
/** @file
Scan for an UDF file system on a formatted media.
Copyright (C) 2014-2017 Paulo Alcantara <pcacjr@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"
#define MAX_CORRECTION_BLOCKS_NUM 512u
//
// C5BD4D42-1A76-4996-8956-73CDA326CD0A
//
#define EFI_UDF_DEVICE_PATH_GUID \
{ 0xC5BD4D42, 0x1A76, 0x4996, \
{ 0x89, 0x56, 0x73, 0xCD, 0xA3, 0x26, 0xCD, 0x0A } \
}
typedef struct {
VENDOR_DEVICE_PATH DevicePath;
EFI_DEVICE_PATH_PROTOCOL End;
} UDF_DEVICE_PATH;
//
// Vendor-Defined Device Path GUID for UDF file system
//
EFI_GUID gUdfDevPathGuid = EFI_UDF_DEVICE_PATH_GUID;
//
// Vendor-Defined Media Device Path for UDF file system
//
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 }
}
};
/**
Find the anchor volume descriptor pointer.
@param[in] BlockIo BlockIo interface.
@param[in] DiskIo DiskIo interface.
@param[out] AnchorPoint Anchor volume descriptor pointer.
@param[out] LastRecordedBlock Last recorded block.
@retval EFI_SUCCESS Anchor volume descriptor pointer found.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval other Anchor volume descriptor pointer not found.
**/
EFI_STATUS
FindAnchorVolumeDescriptorPointer (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
IN EFI_DISK_IO_PROTOCOL *DiskIo,
OUT UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER *AnchorPoint,
OUT EFI_LBA *LastRecordedBlock
)
{
EFI_STATUS Status;
UINT32 BlockSize;
EFI_LBA EndLBA;
UDF_DESCRIPTOR_TAG *DescriptorTag;
UINTN AvdpsCount;
UINTN Size;
UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER *AnchorPoints;
INTN Index;
UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER *AnchorPointPtr;
EFI_LBA LastAvdpBlockNum;
//
// UDF 2.60, 2.2.3 Anchor Volume Descriptor Pointer
//
// An Anchor Volume Descriptor Pointer structure shall be recorded in at
// least 2 of the following 3 locations on the media: Logical Sector 256,
// N - 256 or N, where N is the last *addressable* sector of a volume.
//
// To figure out what logical sector N is, the SCSI commands READ CAPACITY and
// READ TRACK INFORMATION are used, however many drives or medias report their
// "last recorded block" wrongly. Although, READ CAPACITY returns the last
// readable data block but there might be unwritten blocks, which are located
// outside any track and therefore AVDP will not be found at block N.
//
// That said, we define a magic number of 512 blocks to be used as correction
// when attempting to find AVDP and define last block number.
//
BlockSize = BlockIo->Media->BlockSize;
EndLBA = BlockIo->Media->LastBlock;
*LastRecordedBlock = EndLBA;
AvdpsCount = 0;
//
// Find AVDP at block 256
//
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
MultU64x32 (256, BlockSize),
sizeof (*AnchorPoint),
AnchorPoint
);
if (EFI_ERROR (Status)) {
return Status;
}
DescriptorTag = &AnchorPoint->DescriptorTag;
//
// Check if read block is a valid AVDP descriptor
//
if (DescriptorTag->TagIdentifier == UdfAnchorVolumeDescriptorPointer) {
DEBUG ((DEBUG_INFO, "%a: found AVDP at block %d\n", __FUNCTION__, 256));
AvdpsCount++;
}
//
// Find AVDP at block N - 256
//
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
MultU64x32 ((UINT64)EndLBA - 256, BlockSize),
sizeof (*AnchorPoint),
AnchorPoint
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check if read block is a valid AVDP descriptor
//
if (DescriptorTag->TagIdentifier == UdfAnchorVolumeDescriptorPointer &&
++AvdpsCount == 2) {
DEBUG ((DEBUG_INFO, "%a: found AVDP at block %Ld\n", __FUNCTION__,
EndLBA - 256));
return EFI_SUCCESS;
}
//
// Check if at least one AVDP was found in previous locations
//
if (AvdpsCount == 0) {
return EFI_VOLUME_CORRUPTED;
}
//
// Find AVDP at block N
//
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
MultU64x32 ((UINT64)EndLBA, BlockSize),
sizeof (*AnchorPoint),
AnchorPoint
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check if read block is a valid AVDP descriptor
//
if (DescriptorTag->TagIdentifier == UdfAnchorVolumeDescriptorPointer) {
return EFI_SUCCESS;
}
//
// No AVDP found at block N. Possibly drive/media returned bad last recorded
// block, or it is part of unwritten data blocks and outside any track.
//
// Search backwards for an AVDP from block N-1 through
// N-MAX_CORRECTION_BLOCKS_NUM. If any AVDP is found, then correct last block
// number for the new UDF partition child handle.
//
Size = MAX_CORRECTION_BLOCKS_NUM * BlockSize;
AnchorPoints = AllocateZeroPool (Size);
if (AnchorPoints == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// Read consecutive MAX_CORRECTION_BLOCKS_NUM disk blocks
//
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
MultU64x32 ((UINT64)EndLBA - MAX_CORRECTION_BLOCKS_NUM, BlockSize),
Size,
AnchorPoints
);
if (EFI_ERROR (Status)) {
goto Out_Free;
}
Status = EFI_VOLUME_CORRUPTED;
//
// Search for AVDP from blocks N-1 through N-MAX_CORRECTION_BLOCKS_NUM
//
for (Index = MAX_CORRECTION_BLOCKS_NUM - 2; Index >= 0; Index--) {
AnchorPointPtr = (VOID *)((UINTN)AnchorPoints + Index * BlockSize);
DescriptorTag = &AnchorPointPtr->DescriptorTag;
//
// Check if read block is a valid AVDP descriptor
//
if (DescriptorTag->TagIdentifier == UdfAnchorVolumeDescriptorPointer) {
//
// Calculate last recorded block number
//
LastAvdpBlockNum = EndLBA - (MAX_CORRECTION_BLOCKS_NUM - Index);
DEBUG ((DEBUG_WARN, "%a: found AVDP at block %Ld\n", __FUNCTION__,
LastAvdpBlockNum));
DEBUG ((DEBUG_WARN, "%a: correcting last block from %Ld to %Ld\n",
__FUNCTION__, EndLBA, LastAvdpBlockNum));
//
// Save read AVDP from last block
//
CopyMem (AnchorPoint, AnchorPointPtr, sizeof (*AnchorPointPtr));
//
// Set last recorded block number
//
*LastRecordedBlock = LastAvdpBlockNum;
Status = EFI_SUCCESS;
break;
}
}
Out_Free:
FreePool (AnchorPoints);
return Status;
}
/**
Find UDF volume identifiers in a Volume Recognition Sequence.
@param[in] BlockIo BlockIo interface.
@param[in] DiskIo DiskIo interface.
@retval EFI_SUCCESS UDF volume identifiers were found.
@retval EFI_NOT_FOUND UDF volume identifiers were not found.
@retval other Failed to perform disk I/O.
**/
EFI_STATUS
FindUdfVolumeIdentifiers (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
IN EFI_DISK_IO_PROTOCOL *DiskIo
)
{
EFI_STATUS Status;
UINT64 Offset;
UINT64 EndDiskOffset;
CDROM_VOLUME_DESCRIPTOR VolDescriptor;
CDROM_VOLUME_DESCRIPTOR TerminatingVolDescriptor;
ZeroMem ((VOID *)&TerminatingVolDescriptor, sizeof (CDROM_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) {
//
// Check if block device has a Volume Structure Descriptor and an Extended
// Area.
//
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
Offset,
sizeof (CDROM_VOLUME_DESCRIPTOR),
(VOID *)&VolDescriptor
);
if (EFI_ERROR (Status)) {
return Status;
}
if (CompareMem ((VOID *)VolDescriptor.Unknown.Id,
(VOID *)UDF_BEA_IDENTIFIER,
sizeof (VolDescriptor.Unknown.Id)) == 0) {
break;
}
if ((CompareMem ((VOID *)VolDescriptor.Unknown.Id,
(VOID *)CDVOL_ID,
sizeof (VolDescriptor.Unknown.Id)) != 0) ||
(CompareMem ((VOID *)&VolDescriptor,
(VOID *)&TerminatingVolDescriptor,
sizeof (CDROM_VOLUME_DESCRIPTOR)) == 0)) {
return EFI_NOT_FOUND;
}
}
//
// Look for "NSR0{2,3}" identifiers in the Extended Area.
//
Offset += UDF_LOGICAL_SECTOR_SIZE;
if (Offset >= EndDiskOffset) {
return EFI_NOT_FOUND;
}
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
Offset,
sizeof (CDROM_VOLUME_DESCRIPTOR),
(VOID *)&VolDescriptor
);
if (EFI_ERROR (Status)) {
return Status;
}
if ((CompareMem ((VOID *)VolDescriptor.Unknown.Id,
(VOID *)UDF_NSR2_IDENTIFIER,
sizeof (VolDescriptor.Unknown.Id)) != 0) &&
(CompareMem ((VOID *)VolDescriptor.Unknown.Id,
(VOID *)UDF_NSR3_IDENTIFIER,
sizeof (VolDescriptor.Unknown.Id)) != 0)) {
return EFI_NOT_FOUND;
}
//
// Look for "TEA01" identifier in the Extended Area
//
Offset += UDF_LOGICAL_SECTOR_SIZE;
if (Offset >= EndDiskOffset) {
return EFI_NOT_FOUND;
}
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
Offset,
sizeof (CDROM_VOLUME_DESCRIPTOR),
(VOID *)&VolDescriptor
);
if (EFI_ERROR (Status)) {
return Status;
}
if (CompareMem ((VOID *)VolDescriptor.Unknown.Id,
(VOID *)UDF_TEA_IDENTIFIER,
sizeof (VolDescriptor.Unknown.Id)) != 0) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**
Check if Logical Volume Descriptor is supported by current EDK2 UDF file
system implementation.
@param[in] LogicalVolDesc Logical Volume Descriptor pointer.
@retval TRUE Logical Volume Descriptor is supported.
@retval FALSE Logical Volume Descriptor is not supported.
**/
BOOLEAN
IsLogicalVolumeDescriptorSupported (
UDF_LOGICAL_VOLUME_DESCRIPTOR *LogicalVolDesc
)
{
//
// Check for a valid UDF revision range
//
switch (LogicalVolDesc->DomainIdentifier.Suffix.Domain.UdfRevision) {
case 0x0102:
case 0x0150:
case 0x0200:
case 0x0201:
case 0x0250:
case 0x0260:
break;
default:
return FALSE;
}
//
// Check for a single Partition Map
//
if (LogicalVolDesc->NumberOfPartitionMaps > 1) {
return FALSE;
}
//
// UDF 1.02 revision supports only Type 1 (Physical) partitions, but
// let's check it any way.
//
// PartitionMap[0] -> type
// PartitionMap[1] -> length (in bytes)
//
if (LogicalVolDesc->PartitionMaps[0] != 1 ||
LogicalVolDesc->PartitionMaps[1] != 6) {
return FALSE;
}
return TRUE;
}
/**
Find UDF logical volume location and whether it is supported by current EDK2
UDF file system implementation.
@param[in] BlockIo BlockIo interface.
@param[in] DiskIo DiskIo interface.
@param[in] AnchorPoint Anchor volume descriptor pointer.
@param[in] LastRecordedBlock Last recorded block in media.
@param[out] MainVdsStartBlock Main VDS starting block number.
@param[out] MainVdsEndBlock Main VDS ending block number.
@retval EFI_SUCCESS UDF logical volume was found.
@retval EFI_VOLUME_CORRUPTED UDF file system structures are corrupted.
@retval EFI_UNSUPPORTED UDF logical volume is not supported.
@retval other Failed to perform disk I/O.
**/
EFI_STATUS
FindLogicalVolumeLocation (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
IN EFI_DISK_IO_PROTOCOL *DiskIo,
IN UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER *AnchorPoint,
IN EFI_LBA LastRecordedBlock,
OUT UINT64 *MainVdsStartBlock,
OUT UINT64 *MainVdsEndBlock
)
{
EFI_STATUS Status;
UINT32 BlockSize;
UDF_EXTENT_AD *ExtentAd;
UINT64 SeqBlocksNum;
UINT64 SeqStartBlock;
UINT64 GuardMainVdsStartBlock;
VOID *Buffer;
UINT64 SeqEndBlock;
BOOLEAN StopSequence;
UINTN LvdsCount;
UDF_LOGICAL_VOLUME_DESCRIPTOR *LogicalVolDesc;
UDF_DESCRIPTOR_TAG *DescriptorTag;
BlockSize = BlockIo->Media->BlockSize;
ExtentAd = &AnchorPoint->MainVolumeDescriptorSequenceExtent;
//
// UDF 2.60, 2.2.3.1 struct MainVolumeDescriptorSequenceExtent
//
// The Main Volume Descriptor Sequence Extent shall have a minimum length of
// 16 logical sectors.
//
// Also make sure it does not exceed maximum number of blocks in the disk.
//
SeqBlocksNum = DivU64x32 ((UINT64)ExtentAd->ExtentLength, BlockSize);
if (SeqBlocksNum < 16 || (EFI_LBA)SeqBlocksNum > LastRecordedBlock + 1) {
return EFI_VOLUME_CORRUPTED;
}
//
// Check for valid Volume Descriptor Sequence starting block number
//
SeqStartBlock = (UINT64)ExtentAd->ExtentLocation;
if (SeqStartBlock > LastRecordedBlock ||
SeqStartBlock + SeqBlocksNum - 1 > LastRecordedBlock) {
return EFI_VOLUME_CORRUPTED;
}
GuardMainVdsStartBlock = SeqStartBlock;
//
// Allocate buffer for reading disk blocks
//
Buffer = AllocateZeroPool ((UINTN)BlockSize);
if (Buffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
SeqEndBlock = SeqStartBlock + SeqBlocksNum;
StopSequence = FALSE;
LvdsCount = 0;
Status = EFI_VOLUME_CORRUPTED;
//
// Start Main Volume Descriptor Sequence
//
for (; SeqStartBlock < SeqEndBlock && !StopSequence; SeqStartBlock++) {
//
// Read disk block
//
Status = BlockIo->ReadBlocks (
BlockIo,
BlockIo->Media->MediaId,
SeqStartBlock,
BlockSize,
Buffer
);
if (EFI_ERROR (Status)) {
goto Out_Free;
}
DescriptorTag = Buffer;
//
// ECMA 167, 8.4.1 Contents of a Volume Descriptor Sequence
//
// - A Volume Descriptor Sequence shall contain one or more Primary Volume
// Descriptors.
// - A Volume Descriptor Sequence shall contain zero or more Implementation
// Use Volume Descriptors.
// - A Volume Descriptor Sequence shall contain zero or more Partition
// Descriptors.
// - A Volume Descriptor Sequence shall contain zero or more Logical Volume
// Descriptors.
// - A Volume Descriptor Sequence shall contain zero or more Unallocated
// Space Descriptors.
//
switch (DescriptorTag->TagIdentifier) {
case UdfPrimaryVolumeDescriptor:
case UdfImplemenationUseVolumeDescriptor:
case UdfPartitionDescriptor:
case UdfUnallocatedSpaceDescriptor:
break;
case UdfLogicalVolumeDescriptor:
LogicalVolDesc = Buffer;
//
// Check for existence of a single LVD and whether it is supported by
// current EDK2 UDF file system implementation.
//
if (++LvdsCount > 1 ||
!IsLogicalVolumeDescriptorSupported (LogicalVolDesc)) {
Status = EFI_UNSUPPORTED;
StopSequence = TRUE;
}
break;
case UdfTerminatingDescriptor:
//
// Stop the sequence when we find a Terminating Descriptor
// (aka Unallocated Sector), se we don't have to walk all the unallocated
// area unnecessarily.
//
StopSequence = TRUE;
break;
default:
//
// An invalid Volume Descriptor has been found in the sequece. Volume is
// corrupted.
//
Status = EFI_VOLUME_CORRUPTED;
goto Out_Free;
}
}
//
// Check if LVD was found
//
if (!EFI_ERROR (Status) && LvdsCount == 1) {
*MainVdsStartBlock = GuardMainVdsStartBlock;
//
// We do not need to read either LVD or PD descriptors to know the last
// valid block in the found UDF file system. It's already
// LastRecordedBlock.
//
*MainVdsEndBlock = LastRecordedBlock;
Status = EFI_SUCCESS;
}
Out_Free:
//
// Free block read buffer
//
FreePool (Buffer);
return Status;
}
/**
Find a supported UDF file system in block device.
@param[in] BlockIo BlockIo interface.
@param[in] DiskIo DiskIo interface.
@param[out] StartingLBA UDF file system starting LBA.
@param[out] EndingLBA UDF file system starting LBA.
@retval EFI_SUCCESS UDF file system was found.
@retval other UDF file system was not found.
**/
EFI_STATUS
FindUdfFileSystem (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
IN EFI_DISK_IO_PROTOCOL *DiskIo,
OUT EFI_LBA *StartingLBA,
OUT EFI_LBA *EndingLBA
)
{
EFI_STATUS Status;
UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER AnchorPoint;
EFI_LBA LastRecordedBlock;
//
// Find UDF volume identifiers
//
Status = FindUdfVolumeIdentifiers (BlockIo, DiskIo);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Find Anchor Volume Descriptor Pointer
//
Status = FindAnchorVolumeDescriptorPointer (
BlockIo,
DiskIo,
&AnchorPoint,
&LastRecordedBlock
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Find Logical Volume location
//
Status = FindLogicalVolumeLocation (
BlockIo,
DiskIo,
&AnchorPoint,
LastRecordedBlock,
(UINT64 *)StartingLBA,
(UINT64 *)EndingLBA
);
return Status;
}
/**
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
)
{
UINT32 RemainderByMediaBlockSize;
EFI_STATUS Status;
EFI_BLOCK_IO_MEDIA *Media;
EFI_PARTITION_INFO_PROTOCOL PartitionInfo;
EFI_LBA StartingLBA;
EFI_LBA EndingLBA;
BOOLEAN ChildCreated;
Media = BlockIo->Media;
ChildCreated = FALSE;
//
// Check if UDF logical block size is multiple of underlying device block size
//
DivU64x32Remainder (
UDF_LOGICAL_SECTOR_SIZE, // Dividend
Media->BlockSize, // Divisor
&RemainderByMediaBlockSize // Remainder
);
if (RemainderByMediaBlockSize != 0) {
return EFI_NOT_FOUND;
}
//
// Detect El Torito feature first.
// And always continue to search for UDF.
//
Status = PartitionInstallElToritoChildHandles (
This,
Handle,
DiskIo,
DiskIo2,
BlockIo,
BlockIo2,
DevicePath
);
if (!EFI_ERROR (Status)) {
DEBUG ((DEBUG_INFO, "PartitionDxe: El Torito standard found on handle 0x%p.\n", Handle));
ChildCreated = TRUE;
}
//
// Search for an UDF file system on block device
//
Status = FindUdfFileSystem (BlockIo, DiskIo, &StartingLBA, &EndingLBA);
if (EFI_ERROR (Status)) {
return (ChildCreated ? EFI_SUCCESS : EFI_NOT_FOUND);
}
//
// Create Partition Info protocol for UDF file system
//
ZeroMem (&PartitionInfo, sizeof (EFI_PARTITION_INFO_PROTOCOL));
PartitionInfo.Revision = EFI_PARTITION_INFO_PROTOCOL_REVISION;
PartitionInfo.Type = PARTITION_TYPE_OTHER;
//
// Install partition child handle for UDF file system
//
Status = PartitionInstallChildHandle (
This,
Handle,
DiskIo,
DiskIo2,
BlockIo,
BlockIo2,
DevicePath,
(EFI_DEVICE_PATH_PROTOCOL *)&gUdfDevicePath,
&PartitionInfo,
StartingLBA,
EndingLBA,
Media->BlockSize
);
if (EFI_ERROR (Status)) {
return (ChildCreated ? EFI_SUCCESS : Status);
}
return EFI_SUCCESS;
}

185
MdeModulePkg/Universal/Disk/UdfDxe/ComponentName.c
View File

@@ -1,185 +0,0 @@
/** @file
UEFI Component Name protocol for UDF/ECMA-167 file system driver.
Copyright (C) 2014-2017 Paulo Alcantara <pcacjr@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 "Udf.h"
//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gUdfComponentName = {
UdfComponentNameGetDriverName,
UdfComponentNameGetControllerName,
"eng"
};
//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gUdfComponentName2 = {
(EFI_COMPONENT_NAME2_GET_DRIVER_NAME) UdfComponentNameGetDriverName,
(EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) UdfComponentNameGetControllerName,
"en"
};
//
// Driver name table for Udf module.
// It is shared by the implementation of ComponentName & ComponentName2 Protocol.
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mUdfDriverNameTable[] = {
{
"eng;en",
L"UDF File System Driver"
},
{
NULL,
NULL
}
};
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UdfComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
)
{
return LookupUnicodeString2 (
Language,
This->SupportedLanguages,
mUdfDriverNameTable,
DriverName,
(BOOLEAN)(This == &gUdfComponentName)
);
}
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle[in] The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle[in] The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UdfComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
)
{
return EFI_UNSUPPORTED;
}

904
MdeModulePkg/Universal/Disk/UdfDxe/File.c
View File

@@ -1,904 +0,0 @@
/** @file
Handle operations in files and directories from UDF/ECMA-167 file systems.
Copyright (C) 2014-2017 Paulo Alcantara <pcacjr@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 "Udf.h"
EFI_FILE_PROTOCOL gUdfFileIoOps = {
EFI_FILE_PROTOCOL_REVISION,
UdfOpen,
UdfClose,
UdfDelete,
UdfRead,
UdfWrite,
UdfGetPosition,
UdfSetPosition,
UdfGetInfo,
UdfSetInfo,
UdfFlush,
NULL,
NULL,
NULL,
NULL
};
#define _ROOT_FILE(_PrivData) (_PrivData)->Root
#define _PARENT_FILE(_PrivData) \
((_PrivData)->IsRootDirectory ? (_PrivData)->Root : &(_PrivData)->File)
#define _FILE(_PrivData) _PARENT_FILE(_PrivData)
/**
Open the root directory on a volume.
@param This Protocol instance pointer.
@param Root Returns an Open file handle for the root directory
@retval EFI_SUCCESS The device was opened.
@retval EFI_UNSUPPORTED This volume does not support the file system.
@retval EFI_NO_MEDIA The device has no media.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval EFI_ACCESS_DENIED The service denied access to the file.
@retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of
resources.
**/
EFI_STATUS
EFIAPI
UdfOpenVolume (
IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,
OUT EFI_FILE_PROTOCOL **Root
)
{
EFI_TPL OldTpl;
EFI_STATUS Status;
PRIVATE_UDF_SIMPLE_FS_DATA *PrivFsData;
PRIVATE_UDF_FILE_DATA *PrivFileData;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (This == NULL || Root == NULL) {
Status = EFI_INVALID_PARAMETER;
goto Error_Invalid_Params;
}
PrivFsData = PRIVATE_UDF_SIMPLE_FS_DATA_FROM_THIS (This);
if (PrivFsData->OpenFiles == 0) {
//
// There is no more open files. Read volume information again since it was
// cleaned up on the last UdfClose() call.
//
Status = ReadUdfVolumeInformation (
PrivFsData->BlockIo,
PrivFsData->DiskIo,
&PrivFsData->Volume
);
if (EFI_ERROR (Status)) {
goto Error_Read_Udf_Volume;
}
}
CleanupFileInformation (&PrivFsData->Root);
//
// Find root directory file.
//
Status = FindRootDirectory (
PrivFsData->BlockIo,
PrivFsData->DiskIo,
&PrivFsData->Volume,
&PrivFsData->Root
);
if (EFI_ERROR (Status)) {
goto Error_Find_Root_Dir;
}
PrivFileData =
(PRIVATE_UDF_FILE_DATA *) AllocateZeroPool (sizeof (PRIVATE_UDF_FILE_DATA));
if (PrivFileData == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error_Alloc_Priv_File_Data;
}
PrivFileData->Signature = PRIVATE_UDF_FILE_DATA_SIGNATURE;
PrivFileData->SimpleFs = This;
PrivFileData->Root = &PrivFsData->Root;
PrivFileData->IsRootDirectory = TRUE;
CopyMem ((VOID *)&PrivFileData->FileIo, (VOID *)&gUdfFileIoOps,
sizeof (EFI_FILE_PROTOCOL));
*Root = &PrivFileData->FileIo;
PrivFsData->OpenFiles++;
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
Error_Alloc_Priv_File_Data:
CleanupFileInformation (&PrivFsData->Root);
Error_Find_Root_Dir:
Error_Read_Udf_Volume:
Error_Invalid_Params:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Opens a new file relative to the source file's location.
@param This The protocol instance pointer.
@param NewHandle Returns File Handle for FileName.
@param FileName Null terminated string. "\", ".", and ".." are supported.
@param OpenMode Open mode for file.
@param Attributes Only used for EFI_FILE_MODE_CREATE.
@retval EFI_SUCCESS The device was opened.
@retval EFI_NOT_FOUND The specified file could not be found on the
device.
@retval EFI_NO_MEDIA The device has no media.
@retval EFI_MEDIA_CHANGED The media has changed.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval EFI_ACCESS_DENIED The service denied access to the file.
@retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of
resources.
@retval EFI_VOLUME_FULL The volume is full.
**/
EFI_STATUS
EFIAPI
UdfOpen (
IN EFI_FILE_PROTOCOL *This,
OUT EFI_FILE_PROTOCOL **NewHandle,
IN CHAR16 *FileName,
IN UINT64 OpenMode,
IN UINT64 Attributes
)
{
EFI_TPL OldTpl;
EFI_STATUS Status;
PRIVATE_UDF_FILE_DATA *PrivFileData;
PRIVATE_UDF_SIMPLE_FS_DATA *PrivFsData;
CHAR16 FilePath[UDF_PATH_LENGTH];
UDF_FILE_INFO File;
PRIVATE_UDF_FILE_DATA *NewPrivFileData;
CHAR16 *TempFileName;
ZeroMem (FilePath, sizeof FilePath);
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (This == NULL || NewHandle == NULL || FileName == NULL) {
Status = EFI_INVALID_PARAMETER;
goto Error_Invalid_Params;
}
if (OpenMode != EFI_FILE_MODE_READ) {
Status = EFI_WRITE_PROTECTED;
goto Error_Invalid_Params;
}
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
PrivFsData = PRIVATE_UDF_SIMPLE_FS_DATA_FROM_THIS (PrivFileData->SimpleFs);
//
// Build full path
//
if (*FileName == L'\\') {
StrCpyS (FilePath, UDF_PATH_LENGTH, FileName);
} else {
StrCpyS (FilePath, UDF_PATH_LENGTH, PrivFileData->AbsoluteFileName);
StrCatS (FilePath, UDF_PATH_LENGTH, L"\\");
StrCatS (FilePath, UDF_PATH_LENGTH, FileName);
}
MangleFileName (FilePath);
if (FilePath[0] == L'\0') {
Status = EFI_NOT_FOUND;
goto Error_Bad_FileName;
}
Status = FindFile (
PrivFsData->BlockIo,
PrivFsData->DiskIo,
&PrivFsData->Volume,
FilePath,
_ROOT_FILE (PrivFileData),
_PARENT_FILE (PrivFileData),
&_PARENT_FILE(PrivFileData)->FileIdentifierDesc->Icb,
&File
);
if (EFI_ERROR (Status)) {
goto Error_Find_File;
}
NewPrivFileData =
(PRIVATE_UDF_FILE_DATA *)AllocateZeroPool (sizeof (PRIVATE_UDF_FILE_DATA));
if (NewPrivFileData == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error_Alloc_New_Priv_File_Data;
}
CopyMem ((VOID *)NewPrivFileData, (VOID *)PrivFileData,
sizeof (PRIVATE_UDF_FILE_DATA));
CopyMem ((VOID *)&NewPrivFileData->File, &File, sizeof (UDF_FILE_INFO));
NewPrivFileData->IsRootDirectory = FALSE;
StrCpyS (NewPrivFileData->AbsoluteFileName, UDF_PATH_LENGTH, FilePath);
FileName = NewPrivFileData->AbsoluteFileName;
while ((TempFileName = StrStr (FileName, L"\\")) != NULL) {
FileName = TempFileName + 1;
}
StrCpyS (NewPrivFileData->FileName, UDF_PATH_LENGTH, FileName);
Status = GetFileSize (
PrivFsData->BlockIo,
PrivFsData->DiskIo,
&PrivFsData->Volume,
&NewPrivFileData->File,
&NewPrivFileData->FileSize
);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status)) {
goto Error_Get_File_Size;
}
NewPrivFileData->FilePosition = 0;
ZeroMem ((VOID *)&NewPrivFileData->ReadDirInfo,
sizeof (UDF_READ_DIRECTORY_INFO));
*NewHandle = &NewPrivFileData->FileIo;
PrivFsData->OpenFiles++;
gBS->RestoreTPL (OldTpl);
return Status;
Error_Get_File_Size:
FreePool ((VOID *)NewPrivFileData);
Error_Alloc_New_Priv_File_Data:
CleanupFileInformation (&File);
Error_Find_File:
Error_Bad_FileName:
Error_Invalid_Params:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Read data from the file.
@param This Protocol instance pointer.
@param BufferSize On input size of buffer, on output amount of data in
buffer.
@param Buffer The buffer in which data is read.
@retval EFI_SUCCESS Data was read.
@retval EFI_NO_MEDIA The device has no media.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval EFI_BUFFER_TO_SMALL BufferSize is too small. BufferSize contains
required size.
**/
EFI_STATUS
EFIAPI
UdfRead (
IN EFI_FILE_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
)
{
EFI_TPL OldTpl;
EFI_STATUS Status;
PRIVATE_UDF_FILE_DATA *PrivFileData;
PRIVATE_UDF_SIMPLE_FS_DATA *PrivFsData;
UDF_VOLUME_INFO *Volume;
UDF_FILE_INFO *Parent;
UDF_READ_DIRECTORY_INFO *ReadDirInfo;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
EFI_DISK_IO_PROTOCOL *DiskIo;
UDF_FILE_INFO FoundFile;
UDF_FILE_IDENTIFIER_DESCRIPTOR *NewFileIdentifierDesc;
VOID *NewFileEntryData;
CHAR16 FileName[UDF_FILENAME_LENGTH];
UINT64 FileSize;
UINT64 BufferSizeUint64;
ZeroMem (FileName, sizeof FileName);
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (This == NULL || BufferSize == NULL || (*BufferSize != 0 &&
Buffer == NULL)) {
Status = EFI_INVALID_PARAMETER;
goto Error_Invalid_Params;
}
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
PrivFsData = PRIVATE_UDF_SIMPLE_FS_DATA_FROM_THIS (PrivFileData->SimpleFs);
BlockIo = PrivFsData->BlockIo;
DiskIo = PrivFsData->DiskIo;
Volume = &PrivFsData->Volume;
ReadDirInfo = &PrivFileData->ReadDirInfo;
NewFileIdentifierDesc = NULL;
NewFileEntryData = NULL;
Parent = _PARENT_FILE (PrivFileData);
Status = EFI_VOLUME_CORRUPTED;
if (IS_FID_NORMAL_FILE (Parent->FileIdentifierDesc)) {
if (PrivFileData->FilePosition > PrivFileData->FileSize) {
//
// File's position is beyond the EOF
//
Status = EFI_DEVICE_ERROR;
goto Error_File_Beyond_The_Eof;
}
if (PrivFileData->FilePosition == PrivFileData->FileSize) {
*BufferSize = 0;
Status = EFI_SUCCESS;
goto Done;
}
BufferSizeUint64 = *BufferSize;
Status = ReadFileData (
BlockIo,
DiskIo,
Volume,
Parent,
PrivFileData->FileSize,
&PrivFileData->FilePosition,
Buffer,
&BufferSizeUint64
);
ASSERT (BufferSizeUint64 <= MAX_UINTN);
*BufferSize = (UINTN)BufferSizeUint64;
} else if (IS_FID_DIRECTORY_FILE (Parent->FileIdentifierDesc)) {
if (ReadDirInfo->FidOffset == 0 && PrivFileData->FilePosition > 0) {
Status = EFI_DEVICE_ERROR;
*BufferSize = 0;
goto Done;
}
for (;;) {
Status = ReadDirectoryEntry (
BlockIo,
DiskIo,
Volume,
&Parent->FileIdentifierDesc->Icb,
Parent->FileEntry,
ReadDirInfo,
&NewFileIdentifierDesc
);
if (EFI_ERROR (Status)) {
if (Status == EFI_DEVICE_ERROR) {
FreePool (ReadDirInfo->DirectoryData);
ZeroMem ((VOID *)ReadDirInfo, sizeof (UDF_READ_DIRECTORY_INFO));
*BufferSize = 0;
Status = EFI_SUCCESS;
}
goto Done;
}
if (!IS_FID_PARENT_FILE (NewFileIdentifierDesc)) {
break;
}
FreePool ((VOID *)NewFileIdentifierDesc);
}
Status = FindFileEntry (
BlockIo,
DiskIo,
Volume,
&NewFileIdentifierDesc->Icb,
&NewFileEntryData
);
if (EFI_ERROR (Status)) {
goto Error_Find_Fe;
}
ASSERT (NewFileEntryData != NULL);
if (FE_ICB_FILE_TYPE (NewFileEntryData) == UdfFileEntrySymlink) {
Status = ResolveSymlink (
BlockIo,
DiskIo,
Volume,
Parent,
NewFileEntryData,
&FoundFile
);
if (EFI_ERROR (Status)) {
goto Error_Resolve_Symlink;
}
FreePool ((VOID *)NewFileEntryData);
NewFileEntryData = FoundFile.FileEntry;
Status = GetFileNameFromFid (NewFileIdentifierDesc, FileName);
if (EFI_ERROR (Status)) {
FreePool ((VOID *)FoundFile.FileIdentifierDesc);
goto Error_Get_FileName;
}
FreePool ((VOID *)NewFileIdentifierDesc);
NewFileIdentifierDesc = FoundFile.FileIdentifierDesc;
} else {
FoundFile.FileIdentifierDesc = NewFileIdentifierDesc;
FoundFile.FileEntry = NewFileEntryData;
Status = GetFileNameFromFid (FoundFile.FileIdentifierDesc, FileName);
if (EFI_ERROR (Status)) {
goto Error_Get_FileName;
}
}
Status = GetFileSize (
BlockIo,
DiskIo,
Volume,
&FoundFile,
&FileSize
);
if (EFI_ERROR (Status)) {
goto Error_Get_File_Size;
}
Status = SetFileInfo (
&FoundFile,
FileSize,
FileName,
BufferSize,
Buffer
);
if (EFI_ERROR (Status)) {
goto Error_Set_File_Info;
}
PrivFileData->FilePosition++;
Status = EFI_SUCCESS;
} else if (IS_FID_DELETED_FILE (Parent->FileIdentifierDesc)) {
Status = EFI_DEVICE_ERROR;
}
Error_Set_File_Info:
Error_Get_File_Size:
Error_Get_FileName:
Error_Resolve_Symlink:
if (NewFileEntryData != NULL) {
FreePool (NewFileEntryData);
}
Error_Find_Fe:
if (NewFileIdentifierDesc != NULL) {
FreePool ((VOID *)NewFileIdentifierDesc);
}
Done:
Error_File_Beyond_The_Eof:
Error_Invalid_Params:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Close the file handle.
@param This Protocol instance pointer.
@retval EFI_SUCCESS The file was closed.
**/
EFI_STATUS
EFIAPI
UdfClose (
IN EFI_FILE_PROTOCOL *This
)
{
EFI_TPL OldTpl;
EFI_STATUS Status;
PRIVATE_UDF_FILE_DATA *PrivFileData;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
Status = EFI_SUCCESS;
if (This == NULL) {
Status = EFI_INVALID_PARAMETER;
goto Exit;
}
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
if (!PrivFileData->IsRootDirectory) {
CleanupFileInformation (&PrivFileData->File);
if (PrivFileData->ReadDirInfo.DirectoryData != NULL) {
FreePool (PrivFileData->ReadDirInfo.DirectoryData);
}
}
FreePool ((VOID *)PrivFileData);
Exit:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Close and delete the file handle.
@param This Protocol instance pointer.
@retval EFI_SUCCESS The file was closed and deleted.
@retval EFI_WARN_DELETE_FAILURE The handle was closed but the file was not
deleted.
**/
EFI_STATUS
EFIAPI
UdfDelete (
IN EFI_FILE_PROTOCOL *This
)
{
PRIVATE_UDF_FILE_DATA *PrivFileData;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
(VOID)PrivFileData->FileIo.Close(This);
return EFI_WARN_DELETE_FAILURE;
}
/**
Write data to a file.
@param This Protocol instance pointer.
@param BufferSize On input size of buffer, on output amount of data in
buffer.
@param Buffer The buffer in which data to write.
@retval EFI_SUCCESS Data was written.
@retval EFI_UNSUPPORTED Writes to Open directory are not supported.
@retval EFI_NO_MEDIA The device has no media.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_DEVICE_ERROR An attempt was made to write to a deleted file.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval EFI_WRITE_PROTECTED The device is write protected.
@retval EFI_ACCESS_DENIED The file was open for read only.
@retval EFI_VOLUME_FULL The volume is full.
**/
EFI_STATUS
EFIAPI
UdfWrite (
IN EFI_FILE_PROTOCOL *This,
IN OUT UINTN *BufferSize,
IN VOID *Buffer
)
{
return EFI_UNSUPPORTED;
}
/**
Get file's current position.
@param This Protocol instance pointer.
@param Position Byte position from the start of the file.
@retval EFI_SUCCESS Position was updated.
@retval EFI_UNSUPPORTED Seek request for directories is not valid.
**/
EFI_STATUS
EFIAPI
UdfGetPosition (
IN EFI_FILE_PROTOCOL *This,
OUT UINT64 *Position
)
{
PRIVATE_UDF_FILE_DATA *PrivFileData;
if (This == NULL || Position == NULL) {
return EFI_INVALID_PARAMETER;
}
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
//
// As per UEFI spec, if the file handle is a directory, then the current file
// position has no meaning and the operation is not supported.
//
if (IS_FID_DIRECTORY_FILE (PrivFileData->File.FileIdentifierDesc)) {
return EFI_UNSUPPORTED;
}
//
// The file is not a directory. So, return its position.
//
*Position = PrivFileData->FilePosition;
return EFI_SUCCESS;
}
/**
Set file's current position.
@param This Protocol instance pointer.
@param Position Byte position from the start of the file.
@retval EFI_SUCCESS Position was updated.
@retval EFI_UNSUPPORTED Seek request for non-zero is not valid on open.
**/
EFI_STATUS
EFIAPI
UdfSetPosition (
IN EFI_FILE_PROTOCOL *This,
IN UINT64 Position
)
{
EFI_STATUS Status;
PRIVATE_UDF_FILE_DATA *PrivFileData;
UDF_FILE_IDENTIFIER_DESCRIPTOR *FileIdentifierDesc;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_UNSUPPORTED;
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
FileIdentifierDesc = _FILE (PrivFileData)->FileIdentifierDesc;
ASSERT (FileIdentifierDesc != NULL);
if (IS_FID_DIRECTORY_FILE (FileIdentifierDesc)) {
//
// If the file handle is a directory, the _only_ position that may be set is
// zero. This has no effect of starting the read proccess of the directory
// entries over.
//
if (Position == 0) {
PrivFileData->FilePosition = Position;
PrivFileData->ReadDirInfo.FidOffset = 0;
Status = EFI_SUCCESS;
}
} else if (IS_FID_NORMAL_FILE (FileIdentifierDesc)) {
//
// Seeking to position 0xFFFFFFFFFFFFFFFF causes the current position to be
// set to the EOF.
//
if (Position == 0xFFFFFFFFFFFFFFFF) {
PrivFileData->FilePosition = PrivFileData->FileSize - 1;
} else {
PrivFileData->FilePosition = Position;
}
Status = EFI_SUCCESS;
}
return Status;
}
/**
Get information about a file.
@param This Protocol instance pointer.
@param InformationType Type of information to return in Buffer.
@param BufferSize On input size of buffer, on output amount of data in
buffer.
@param Buffer The buffer to return data.
@retval EFI_SUCCESS Data was returned.
@retval EFI_UNSUPPORTED InformationType is not supported.
@retval EFI_NO_MEDIA The device has no media.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval EFI_WRITE_PROTECTED The device is write protected.
@retval EFI_ACCESS_DENIED The file was open for read only.
@retval EFI_BUFFER_TOO_SMALL Buffer was too small; required size returned in
BufferSize.
**/
EFI_STATUS
EFIAPI
UdfGetInfo (
IN EFI_FILE_PROTOCOL *This,
IN EFI_GUID *InformationType,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
PRIVATE_UDF_FILE_DATA *PrivFileData;
PRIVATE_UDF_SIMPLE_FS_DATA *PrivFsData;
EFI_FILE_SYSTEM_INFO *FileSystemInfo;
UINTN FileSystemInfoLength;
CHAR16 *String;
UDF_FILE_SET_DESCRIPTOR *FileSetDesc;
UINTN Index;
UINT8 *OstaCompressed;
UINT8 CompressionId;
UINT64 VolumeSize;
UINT64 FreeSpaceSize;
CHAR16 VolumeLabel[64];
if (This == NULL || InformationType == NULL || BufferSize == NULL ||
(*BufferSize != 0 && Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
PrivFsData = PRIVATE_UDF_SIMPLE_FS_DATA_FROM_THIS (PrivFileData->SimpleFs);
Status = EFI_UNSUPPORTED;
if (CompareGuid (InformationType, &gEfiFileInfoGuid)) {
Status = SetFileInfo (
_FILE (PrivFileData),
PrivFileData->FileSize,
PrivFileData->FileName,
BufferSize,
Buffer
);
} else if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {
String = VolumeLabel;
FileSetDesc = &PrivFsData->Volume.FileSetDesc;
OstaCompressed = &FileSetDesc->LogicalVolumeIdentifier[0];
CompressionId = OstaCompressed[0];
if (!IS_VALID_COMPRESSION_ID (CompressionId)) {
return EFI_VOLUME_CORRUPTED;
}
for (Index = 1; Index < 128; Index++) {
if (CompressionId == 16) {
*String = *(UINT8 *)(OstaCompressed + Index) << 8;
Index++;
} else {
*String = 0;
}
if (Index < 128) {
*String |= (CHAR16)(*(UINT8 *)(OstaCompressed + Index));
}
//
// Unlike FID Identifiers, Logical Volume Identifier is stored in a
// NULL-terminated OSTA compressed format, so we must check for the NULL
// character.
//
if (*String == L'\0') {
break;
}
String++;
}
*String = L'\0';
FileSystemInfoLength = StrSize (VolumeLabel) +
sizeof (EFI_FILE_SYSTEM_INFO);
if (*BufferSize < FileSystemInfoLength) {
*BufferSize = FileSystemInfoLength;
return EFI_BUFFER_TOO_SMALL;
}
FileSystemInfo = (EFI_FILE_SYSTEM_INFO *)Buffer;
StrCpyS (FileSystemInfo->VolumeLabel, ARRAY_SIZE (VolumeLabel),
VolumeLabel);
Status = GetVolumeSize (
PrivFsData->BlockIo,
PrivFsData->DiskIo,
&PrivFsData->Volume,
&VolumeSize,
&FreeSpaceSize
);
if (EFI_ERROR (Status)) {
return Status;
}
FileSystemInfo->Size = FileSystemInfoLength;
FileSystemInfo->ReadOnly = TRUE;
FileSystemInfo->BlockSize =
PrivFsData->Volume.LogicalVolDesc.LogicalBlockSize;
FileSystemInfo->VolumeSize = VolumeSize;
FileSystemInfo->FreeSpace = FreeSpaceSize;
*BufferSize = FileSystemInfoLength;
Status = EFI_SUCCESS;
}
return Status;
}
/**
Set information about a file.
@param This Protocol instance pointer.
@param InformationType Type of information in Buffer.
@param BufferSize Size of buffer.
@param Buffer The data to write.
@retval EFI_SUCCESS Data was set.
@retval EFI_UNSUPPORTED InformationType is not supported.
@retval EFI_NO_MEDIA The device has no media.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval EFI_WRITE_PROTECTED The device is write protected.
@retval EFI_ACCESS_DENIED The file was open for read only.
**/
EFI_STATUS
EFIAPI
UdfSetInfo (
IN EFI_FILE_PROTOCOL *This,
IN EFI_GUID *InformationType,
IN UINTN BufferSize,
IN VOID *Buffer
)
{
return EFI_WRITE_PROTECTED;
}
/**
Flush data back for the file handle.
@param This Protocol instance pointer.
@retval EFI_SUCCESS Data was flushed.
@retval EFI_UNSUPPORTED Writes to Open directory are not supported.
@retval EFI_NO_MEDIA The device has no media.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
@retval EFI_WRITE_PROTECTED The device is write protected.
@retval EFI_ACCESS_DENIED The file was open for read only.
@retval EFI_VOLUME_FULL The volume is full.
**/
EFI_STATUS
EFIAPI
UdfFlush (
IN EFI_FILE_PROTOCOL *This
)
{
return EFI_WRITE_PROTECTED;
}

220
MdeModulePkg/Universal/Disk/UdfDxe/FileName.c
View File

@@ -1,220 +0,0 @@
/** @file
Helper functions for mangling file names in UDF/ECMA-167 file systems.
Copyright (C) 2014-2017 Paulo Alcantara <pcacjr@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 "Udf.h"
/**
Trim the leading and trailing spaces for a give Unicode string.
@param[in] String The Unicode string to trim.
@return A pointer to the trimmed string.
**/
CHAR16 *
TrimString (
IN CHAR16 *String
)
{
CHAR16 *TempString;
for ( ; *String != L'\0' && *String == L' '; String++) {
;
}
TempString = String + StrLen (String) - 1;
while ((TempString >= String) && (*TempString == L' ')) {
TempString--;
}
*(TempString + 1) = L'\0';
return String;
}
/**
Replace the content of a Unicode string with the content of another Unicode
string.
@param[in] Destination A pointer to a Unicode string.
@param[in] Source A pointer to a Unicode string.
**/
VOID
ReplaceLeft (
IN CHAR16 *Destination,
IN CONST CHAR16 *Source
)
{
CONST CHAR16 *EndString;
EndString = Source + StrLen (Source);
while (Source <= EndString) {
*Destination++ = *Source++;
}
}
/**
Remove one or more consecutive backslashes starting from the second character
of a given Unicode string.
@param[in] String A pointer to a Unicode string.
@return A pointer to the modified string.
**/
CHAR16 *
ExcludeTrailingBackslashes (
IN CHAR16 *String
)
{
CHAR16 *TempString;
switch (*(String + 1)) {
case L'\\':
break;
case L'\0':
default:
String++;
goto Exit;
}
TempString = String;
while (*TempString != L'\0' && *TempString == L'\\') {
TempString++;
}
if (TempString - 1 > String) {
ReplaceLeft (String + 1, TempString);
}
String++;
Exit:
return String;
}
/**
Mangle a filename by cutting off trailing whitespaces, "\\", "." and "..".
@param[in] FileName Filename.
@retval The mangled Filename.
**/
CHAR16 *
MangleFileName (
IN CHAR16 *FileName
)
{
CHAR16 *FileNameSavedPointer;
CHAR16 *TempFileName;
UINTN BackslashesNo;
if (FileName == NULL || *FileName == L'\0') {
FileName = NULL;
goto Exit;
}
FileName = TrimString (FileName);
if (*FileName == L'\0') {
goto Exit;
}
if ((StrLen (FileName) > 1) && (FileName[StrLen (FileName) - 1] == L'\\')) {
FileName[StrLen (FileName) - 1] = L'\0';
}
FileNameSavedPointer = FileName;
if (FileName[0] == L'.') {
if (FileName[1] == L'.') {
if (FileName[2] == L'\0') {
goto Exit;
} else {
FileName += 2;
}
} else if (FileName[1] == L'\0') {
goto Exit;
}
}
while (*FileName != L'\0') {
if (*FileName == L'\\') {
FileName = ExcludeTrailingBackslashes (FileName);
} else if (*FileName == L'.') {
switch (*(FileName + 1)) {
case L'\0':
*FileName = L'\0';
break;
case L'\\':
TempFileName = FileName + 1;
TempFileName = ExcludeTrailingBackslashes (TempFileName);
ReplaceLeft (FileName, TempFileName);
break;
case '.':
if ((*(FileName - 1) != L'\\') && ((*(FileName + 2) != L'\\') ||
(*(FileName + 2) != L'\0'))) {
FileName++;
continue;
}
BackslashesNo = 0;
TempFileName = FileName - 1;
while (TempFileName >= FileNameSavedPointer) {
if (*TempFileName == L'\\') {
if (++BackslashesNo == 2) {
break;
}
}
TempFileName--;
}
TempFileName++;
if ((*TempFileName == L'.') && (*(TempFileName + 1) == L'.')) {
FileName += 2;
} else {
if (*(FileName + 2) != L'\0') {
ReplaceLeft (TempFileName, FileName + 3);
if (*(TempFileName - 1) == L'\\') {
FileName = TempFileName;
ExcludeTrailingBackslashes (TempFileName - 1);
TempFileName = FileName;
}
} else {
*TempFileName = L'\0';
}
FileName = TempFileName;
}
break;
default:
FileName++;
}
} else {
FileName++;
}
}
FileName = FileNameSavedPointer;
if ((StrLen (FileName) > 1) && (FileName [StrLen (FileName) - 1] == L'\\')) {
FileName [StrLen (FileName) - 1] = L'\0';
}
Exit:
return FileName;
}

2608
MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
View File

File diff suppressed because it is too large Load Diff

337
MdeModulePkg/Universal/Disk/UdfDxe/Udf.c
View File

@@ -1,337 +0,0 @@
/** @file
UDF/ECMA-167 file system driver.
Copyright (C) 2014-2017 Paulo Alcantara <pcacjr@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 "Udf.h"
//
// UDF filesystem driver's Global Variables.
//
EFI_DRIVER_BINDING_PROTOCOL gUdfDriverBinding = {
UdfDriverBindingSupported,
UdfDriverBindingStart,
UdfDriverBindingStop,
0x10,
NULL,
NULL
};
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL gUdfSimpleFsTemplate = {
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION,
UdfOpenVolume
};
/**
Test to see if this driver supports ControllerHandle. Any ControllerHandle
than contains a BlockIo and DiskIo protocol or a BlockIo2 protocol can be
supported.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to test.
@param[in] RemainingDevicePath Optional parameter use to pick a specific
child device to start.
@retval EFI_SUCCESS This driver supports this device.
@retval EFI_ALREADY_STARTED This driver is already running on this device.
@retval other This driver does not support this device.
**/
EFI_STATUS
EFIAPI
UdfDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_DISK_IO_PROTOCOL *DiskIo;
//
// Open DiskIo protocol on ControllerHandle
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiDiskIoProtocolGuid,
(VOID **)&DiskIo,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Close DiskIo protocol on ControllerHandle
//
gBS->CloseProtocol (
ControllerHandle,
&gEfiDiskIoProtocolGuid,
This->DriverBindingHandle,
ControllerHandle
);
//
// Test whether ControllerHandle supports BlockIo protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiBlockIoProtocolGuid,
NULL,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
return Status;
}
/**
Start this driver on ControllerHandle by opening a Block IO or a Block IO2
or both, and Disk IO protocol, reading Device Path, and creating a child
handle with a Disk IO and device path protocol.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to bind driver to
@param[in] RemainingDevicePath Optional parameter use to pick a specific
child device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle.
@retval EFI_ALREADY_STARTED This driver is already running on
ControllerHandle.
@retval other This driver does not support this device.
**/
EFI_STATUS
EFIAPI
UdfDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_TPL OldTpl;
EFI_STATUS Status;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
EFI_DISK_IO_PROTOCOL *DiskIo;
PRIVATE_UDF_SIMPLE_FS_DATA *PrivFsData;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Open BlockIo protocol on ControllerHandle
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiBlockIoProtocolGuid,
(VOID **)&BlockIo,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
ASSERT_EFI_ERROR (Status);
//
// Open DiskIo protocol on ControllerHandle
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiDiskIoProtocolGuid,
(VOID **)&DiskIo,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
ASSERT_EFI_ERROR (Status);
//
// Check if ControllerHandle supports an UDF file system
//
Status = SupportUdfFileSystem (This, ControllerHandle);
if (EFI_ERROR (Status)) {
goto Exit;
}
//
// Initialize private file system structure
//
PrivFsData =
(PRIVATE_UDF_SIMPLE_FS_DATA *)
AllocateZeroPool (sizeof (PRIVATE_UDF_SIMPLE_FS_DATA));
if (PrivFsData == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
//
// Create new child handle
//
PrivFsData->Signature = PRIVATE_UDF_SIMPLE_FS_DATA_SIGNATURE;
PrivFsData->BlockIo = BlockIo;
PrivFsData->DiskIo = DiskIo;
PrivFsData->Handle = ControllerHandle;
//
// Set up SimpleFs protocol
//
CopyMem ((VOID *)&PrivFsData->SimpleFs, (VOID *)&gUdfSimpleFsTemplate,
sizeof (EFI_SIMPLE_FILE_SYSTEM_PROTOCOL));
//
// Install child handle
//
Status = gBS->InstallMultipleProtocolInterfaces (
&PrivFsData->Handle,
&gEfiSimpleFileSystemProtocolGuid,
&PrivFsData->SimpleFs,
NULL
);
Exit:
if (EFI_ERROR (Status)) {
//
// Close DiskIo protocol on ControllerHandle
//
gBS->CloseProtocol (
ControllerHandle,
&gEfiDiskIoProtocolGuid,
This->DriverBindingHandle,
ControllerHandle
);
//
// Close BlockIo protocol on ControllerHandle
//
gBS->CloseProtocol (
ControllerHandle,
&gEfiBlockIoProtocolGuid,
This->DriverBindingHandle,
ControllerHandle
);
}
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Stop this driver on ControllerHandle. Support stopping any child handles
created by this driver.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
UdfDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
PRIVATE_UDF_SIMPLE_FS_DATA *PrivFsData;
EFI_STATUS Status;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *SimpleFs;
//
// Open SimpleFs protocol on ControllerHandle
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiSimpleFileSystemProtocolGuid,
(VOID **)&SimpleFs,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
PrivFsData = PRIVATE_UDF_SIMPLE_FS_DATA_FROM_THIS (SimpleFs);
//
// Uninstall child handle
//
Status = gBS->UninstallMultipleProtocolInterfaces (
PrivFsData->Handle,
&gEfiSimpleFileSystemProtocolGuid,
&PrivFsData->SimpleFs,
NULL
);
FreePool ((VOID *)PrivFsData);
}
if (!EFI_ERROR (Status)) {
//
// Close DiskIo protocol on ControllerHandle
//
gBS->CloseProtocol (
ControllerHandle,
&gEfiDiskIoProtocolGuid,
This->DriverBindingHandle,
ControllerHandle
);
//
// Close BlockIo protocol on ControllerHandle
//
gBS->CloseProtocol (
ControllerHandle,
&gEfiBlockIoProtocolGuid,
This->DriverBindingHandle,
ControllerHandle
);
}
return Status;
}
/**
The user Entry Point for UDF file system driver. The user code starts with
this function.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
InitializeUdf (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gUdfDriverBinding,
ImageHandle,
&gUdfComponentName,
&gUdfComponentName2
);
ASSERT_EFI_ERROR (Status);
return Status;
}

1161
MdeModulePkg/Universal/Disk/UdfDxe/Udf.h
View File

File diff suppressed because it is too large Load Diff

66
MdeModulePkg/Universal/Disk/UdfDxe/UdfDxe.inf
View File

@@ -1,66 +0,0 @@
## @file
# UDF/ECMA-167 file system driver.
#
# Copyright (C) 2014-2017 Paulo Alcantara <pcacjr@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.
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = UdfDxe
FILE_GUID = 905f13b0-8f91-4b0a-bd76-e1e78f9422e4
MODULE_TYPE = UEFI_DRIVER
VERSION_STRING = 1.0
ENTRY_POINT = InitializeUdf
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
# DRIVER_BINDING = gUdfDriverBinding
# COMPONENT_NAME = gUdfComponentName
# COMPONENT_NAME2 = gUdfComponentName2
#
[Sources]
ComponentName.c
FileSystemOperations.c
FileName.c
File.c
Udf.c
Udf.h
[Packages]
MdePkg/MdePkg.dec
[LibraryClasses]
DevicePathLib
UefiBootServicesTableLib
MemoryAllocationLib
BaseMemoryLib
UefiLib
BaseLib
UefiDriverEntryPoint
DebugLib
[Guids]
gEfiFileInfoGuid ## SOMETIMES_CONSUMES ## Protocol
gEfiFileSystemInfoGuid ## SOMETIMES_CONSUMES ## Protocol
[Protocols]
gEfiSimpleFileSystemProtocolGuid ## BY_START
gEfiDevicePathProtocolGuid ## BY_START
gEfiBlockIoProtocolGuid ## TO_START
gEfiDiskIoProtocolGuid ## TO_START