From: Paulo Alcantara <pcacjr@zytor.com>
To: edk2-devel@lists.01.org
Cc: Paulo Alcantara <pcacjr@zytor.com>,
Eric Dong <eric.dong@intel.com>, Ruiyu Ni <ruiyu.ni@intel.com>,
Star Zeng <star.zeng@intel.com>, Laszlo Ersek <lersek@redhat.com>
Subject: [PATCH v2 3/3] MdeModulePkg/UdfDxe: Rework driver to support PartitionDxe changes
Date: Sun, 17 Sep 2017 10:13:28 -0300 [thread overview]
Message-ID: <600e6e752b285bbe960ad22d8ae969cbbd84b85b.1505653040.git.pcacjr@zytor.com> (raw)
In-Reply-To: <cover.1505653040.git.pcacjr@zytor.com>
In-Reply-To: <cover.1505653040.git.pcacjr@zytor.com>
This patch reworks the driver to support Partition driver changes.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
---
MdeModulePkg/Universal/Disk/UdfDxe/File.c | 13 +-
MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c | 515 ++++++++------------
MdeModulePkg/Universal/Disk/UdfDxe/Udf.c | 7 -
MdeModulePkg/Universal/Disk/UdfDxe/Udf.h | 88 +---
4 files changed, 204 insertions(+), 419 deletions(-)
diff --git a/MdeModulePkg/Universal/Disk/UdfDxe/File.c b/MdeModulePkg/Universal/Disk/UdfDxe/File.c
index 01361141bb..f2c62967e8 100644
--- a/MdeModulePkg/Universal/Disk/UdfDxe/File.c
+++ b/MdeModulePkg/Universal/Disk/UdfDxe/File.c
@@ -100,6 +100,7 @@ UdfOpenVolume (
&PrivFsData->Volume,
&PrivFsData->Root
);
+ ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status)) {
goto Error_Find_Root_Dir;
}
@@ -131,7 +132,6 @@ Error_Alloc_Priv_File_Data:
CleanupFileInformation (&PrivFsData->Root);
Error_Find_Root_Dir:
- CleanupVolumeInformation (&PrivFsData->Volume);
Error_Read_Udf_Volume:
Error_Invalid_Params:
@@ -528,7 +528,6 @@ UdfClose (
EFI_TPL OldTpl;
EFI_STATUS Status;
PRIVATE_UDF_FILE_DATA *PrivFileData;
- PRIVATE_UDF_SIMPLE_FS_DATA *PrivFsData;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
@@ -541,8 +540,6 @@ UdfClose (
PrivFileData = PRIVATE_UDF_FILE_DATA_FROM_THIS (This);
- PrivFsData = PRIVATE_UDF_SIMPLE_FS_DATA_FROM_THIS (PrivFileData->SimpleFs);
-
if (!PrivFileData->IsRootDirectory) {
CleanupFileInformation (&PrivFileData->File);
@@ -551,10 +548,6 @@ UdfClose (
}
}
- if (--PrivFsData->OpenFiles == 0) {
- CleanupVolumeInformation (&PrivFsData->Volume);
- }
-
FreePool ((VOID *)PrivFileData);
Exit:
@@ -787,7 +780,7 @@ UdfGetInfo (
} else if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {
String = VolumeLabel;
- FileSetDesc = PrivFsData->Volume.FileSetDescs[0];
+ FileSetDesc = &PrivFsData->Volume.FileSetDesc;
OstaCompressed = &FileSetDesc->LogicalVolumeIdentifier[0];
@@ -846,7 +839,7 @@ UdfGetInfo (
FileSystemInfo->Size = FileSystemInfoLength;
FileSystemInfo->ReadOnly = TRUE;
FileSystemInfo->BlockSize =
- LV_BLOCK_SIZE (&PrivFsData->Volume, UDF_DEFAULT_LV_NUM);
+ PrivFsData->Volume.LogicalVolDesc.LogicalBlockSize;
FileSystemInfo->VolumeSize = VolumeSize;
FileSystemInfo->FreeSpace = FreeSpaceSize;
diff --git a/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c b/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
index 4609580b30..63b643e60a 100644
--- a/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
+++ b/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
@@ -60,154 +60,111 @@ FindAnchorVolumeDescriptorPointer (
EFI_STATUS
StartMainVolumeDescriptorSequence (
- IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
- IN EFI_DISK_IO_PROTOCOL *DiskIo,
- IN UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER *AnchorPoint,
- OUT UDF_VOLUME_INFO *Volume
+ IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
+ IN EFI_DISK_IO_PROTOCOL *DiskIo,
+ OUT UDF_VOLUME_INFO *Volume
)
{
- EFI_STATUS Status;
- UINT32 BlockSize;
- UDF_EXTENT_AD *ExtentAd;
- UINT64 StartingLsn;
- UINT64 EndingLsn;
- VOID *Buffer;
- UDF_LOGICAL_VOLUME_DESCRIPTOR *LogicalVolDesc;
- UDF_PARTITION_DESCRIPTOR *PartitionDesc;
- UINTN Index;
- UINT32 LogicalBlockSize;
+ EFI_STATUS Status;
+ UINT32 BlockSize;
+ UINT64 BlockOffset;
+ VOID *Buffer;
+ UINT32 LogicalBlockSize;
+
+ BlockSize = BlockIo->Media->BlockSize;
//
- // We've already found an ADVP on the volume. It contains the extent
- // (MainVolumeDescriptorSequenceExtent) where the Main Volume Descriptor
- // Sequence starts. Therefore, we'll look for Logical Volume Descriptors and
- // Partitions Descriptors and save them in memory, accordingly.
- //
- // Note also that each descriptor will be aligned on a block size (BlockSize)
- // boundary, so we need to read one block at a time.
+ // Allocate buffer for reading disk blocks
//
- BlockSize = BlockIo->Media->BlockSize;
- ExtentAd = &AnchorPoint->MainVolumeDescriptorSequenceExtent;
- StartingLsn = (UINT64)ExtentAd->ExtentLocation;
- EndingLsn = StartingLsn + DivU64x32 (
- (UINT64)ExtentAd->ExtentLength,
- BlockSize
- );
-
- Volume->LogicalVolDescs =
- (UDF_LOGICAL_VOLUME_DESCRIPTOR **)AllocateZeroPool (ExtentAd->ExtentLength);
- if (Volume->LogicalVolDescs == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- Volume->PartitionDescs =
- (UDF_PARTITION_DESCRIPTOR **)AllocateZeroPool (ExtentAd->ExtentLength);
- if (Volume->PartitionDescs == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Error_Alloc_Pds;
- }
-
- Buffer = AllocateZeroPool (BlockSize);
+ Buffer = AllocateZeroPool ((UINTN)BlockSize);
if (Buffer == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Error_Alloc_Buf;
+ return EFI_OUT_OF_RESOURCES;
}
- Volume->LogicalVolDescsNo = 0;
- Volume->PartitionDescsNo = 0;
-
- while (StartingLsn <= EndingLsn) {
+ //
+ // As per UDF 2.60 specification:
+ //
+ // ---
+ // For the purpose of interchange, Partition Maps shall be limited to
+ // Partition Map type 1, except type 2 maps.
+ // ---
+ // A Partition Descriptor Access Type of read-only, rewritable,
+ // overwritable, write-once and pseudo-overwritable shall be
+ // supported. There shall be exactly one prevailing Partition
+ // Descriptor recorded per volume, with one exception. For Volume
+ // Sets that consist of single volume, the volume may contain 2 non-
+ // overlapping Partitions with 2 prevailing Partition Descriptors only
+ // if one has an Access Type of read-only and the other has an
+ // Access Type of rewritable, overwritable, or write-once. The
+ // Logical Volume for this volume would consist of the contents of
+ // both partitions.
+ // ---
+ //
+ // The logical partition created by Partition driver is relative to the main
+ // VDS extent location, so we start the Main Volume Descriptor Sequence at
+ // LBA 0.
+ //
+ // We don't need to make sure we got both LVD and PD -- that is, if we are
+ // here, that means Partition driver was able to find them both previously.
+ //
+ for (BlockOffset = 0;
+ BlockOffset < MultU64x32 (BlockIo->Media->LastBlock,
+ BlockIo->Media->BlockSize);
+ BlockOffset += BlockSize) {
+ // Read disk block
+ //
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
- MultU64x32 (StartingLsn, BlockSize),
+ BlockOffset,
BlockSize,
Buffer
);
if (EFI_ERROR (Status)) {
- goto Error_Read_Disk_Blk;
+ goto Out_Free;
}
+ //
+ // Check if read block is a Terminating Descriptor
+ //
if (IS_TD (Buffer)) {
//
- // Found a Terminating Descriptor. Stop the sequence then.
+ // Terminate Main Volume Descriptor Sequence
//
break;
}
if (IS_LVD (Buffer)) {
//
- // Found a Logical Volume Descriptor.
+ // Save Logical Volume Descriptor
//
- LogicalVolDesc =
- (UDF_LOGICAL_VOLUME_DESCRIPTOR *)
- AllocateZeroPool (sizeof (UDF_LOGICAL_VOLUME_DESCRIPTOR));
- if (LogicalVolDesc == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Error_Alloc_Lvd;
- }
-
- CopyMem ((VOID *)LogicalVolDesc, Buffer,
- sizeof (UDF_LOGICAL_VOLUME_DESCRIPTOR));
- Volume->LogicalVolDescs[Volume->LogicalVolDescsNo++] = LogicalVolDesc;
+ CopyMem (&Volume->LogicalVolDesc, Buffer, sizeof (Volume->LogicalVolDesc));
} else if (IS_PD (Buffer)) {
//
- // Found a Partition Descriptor.
+ // Save Partition Descriptor
//
- PartitionDesc =
- (UDF_PARTITION_DESCRIPTOR *)
- AllocateZeroPool (sizeof (UDF_PARTITION_DESCRIPTOR));
- if (PartitionDesc == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Error_Alloc_Pd;
- }
-
- CopyMem ((VOID *)PartitionDesc, Buffer,
- sizeof (UDF_PARTITION_DESCRIPTOR));
- Volume->PartitionDescs[Volume->PartitionDescsNo++] = PartitionDesc;
+ CopyMem (&Volume->PartitionDesc, Buffer, sizeof (Volume->PartitionDesc));
}
-
- StartingLsn++;
}
//
- // When an UDF volume (revision 2.00 or higher) contains a File Entry rather
- // than an Extended File Entry (which is not recommended as per spec), we need
- // to make sure the size of a FE will be _at least_ 2048
- // (UDF_LOGICAL_SECTOR_SIZE) bytes long to keep backward compatibility.
+ // Determine FE (File Entry) size
//
- LogicalBlockSize = LV_BLOCK_SIZE (Volume, UDF_DEFAULT_LV_NUM);
+ LogicalBlockSize = Volume->LogicalVolDesc.LogicalBlockSize;
if (LogicalBlockSize >= UDF_LOGICAL_SECTOR_SIZE) {
- Volume->FileEntrySize = LogicalBlockSize;
+ Volume->FileEntrySize = (UINTN)LogicalBlockSize;
} else {
Volume->FileEntrySize = UDF_LOGICAL_SECTOR_SIZE;
}
- FreePool (Buffer);
-
- return EFI_SUCCESS;
-
-Error_Alloc_Pd:
-Error_Alloc_Lvd:
- for (Index = 0; Index < Volume->PartitionDescsNo; Index++) {
- FreePool ((VOID *)Volume->PartitionDescs[Index]);
- }
-
- for (Index = 0; Index < Volume->LogicalVolDescsNo; Index++) {
- FreePool ((VOID *)Volume->LogicalVolDescs[Index]);
- }
+ Status = EFI_SUCCESS;
-Error_Read_Disk_Blk:
+Out_Free:
+ //
+ // Free block read buffer
+ //
FreePool (Buffer);
-Error_Alloc_Buf:
- FreePool ((VOID *)Volume->PartitionDescs);
- Volume->PartitionDescs = NULL;
-
-Error_Alloc_Pds:
- FreePool ((VOID *)Volume->LogicalVolDescs);
- Volume->LogicalVolDescs = NULL;
-
return Status;
}
@@ -223,11 +180,9 @@ GetPdFromLongAd (
)
{
UDF_LOGICAL_VOLUME_DESCRIPTOR *LogicalVolDesc;
- UINTN Index;
- UDF_PARTITION_DESCRIPTOR *PartitionDesc;
UINT16 PartitionNum;
- LogicalVolDesc = Volume->LogicalVolDescs[UDF_DEFAULT_LV_NUM];
+ LogicalVolDesc = &Volume->LogicalVolDesc;
switch (LV_UDF_REVISION (LogicalVolDesc)) {
case 0x0102:
@@ -252,19 +207,21 @@ GetPdFromLongAd (
PartitionNum = *(UINT16 *)((UINTN)&LogicalVolDesc->PartitionMaps[4]);
break;
case 0x0260:
- //
- // Fall through.
- //
- default:
PartitionNum = LongAd->ExtentLocation.PartitionReferenceNumber;
break;
+ default:
+ //
+ // Unhandled UDF revision
+ //
+ return NULL;
}
- for (Index = 0; Index < Volume->PartitionDescsNo; Index++) {
- PartitionDesc = Volume->PartitionDescs[Index];
- if (PartitionDesc->PartitionNumber == PartitionNum) {
- return PartitionDesc;
- }
+ //
+ // Check if partition number matches Partition Descriptor found in Main Volume
+ // Descriptor Sequence.
+ //
+ if (Volume->PartitionDesc.PartitionNumber == PartitionNum) {
+ return &Volume->PartitionDesc;
}
return NULL;
@@ -284,8 +241,9 @@ GetLongAdLsn (
PartitionDesc = GetPdFromLongAd (Volume, LongAd);
ASSERT (PartitionDesc != NULL);
- return (UINT64)PartitionDesc->PartitionStartingLocation +
- LongAd->ExtentLocation.LogicalBlockNumber;
+ return (UINT64)PartitionDesc->PartitionStartingLocation -
+ Volume->MainVdsStartLocation +
+ LongAd->ExtentLocation.LogicalBlockNumber;
}
//
@@ -293,12 +251,13 @@ GetLongAdLsn (
//
UINT64
GetShortAdLsn (
+ IN UDF_VOLUME_INFO *Volume,
IN UDF_PARTITION_DESCRIPTOR *PartitionDesc,
IN UDF_SHORT_ALLOCATION_DESCRIPTOR *ShortAd
)
{
- return (UINT64)PartitionDesc->PartitionStartingLocation +
- ShortAd->ExtentPosition;
+ return (UINT64)PartitionDesc->PartitionStartingLocation -
+ Volume->MainVdsStartLocation + ShortAd->ExtentPosition;
}
//
@@ -311,36 +270,39 @@ EFI_STATUS
FindFileSetDescriptor (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
IN EFI_DISK_IO_PROTOCOL *DiskIo,
- IN UDF_VOLUME_INFO *Volume,
- IN UINTN LogicalVolDescNum,
- OUT UDF_FILE_SET_DESCRIPTOR *FileSetDesc
+ IN UDF_VOLUME_INFO *Volume
)
{
EFI_STATUS Status;
UINT64 Lsn;
UDF_LOGICAL_VOLUME_DESCRIPTOR *LogicalVolDesc;
- LogicalVolDesc = Volume->LogicalVolDescs[LogicalVolDescNum];
+ LogicalVolDesc = &Volume->LogicalVolDesc;
Lsn = GetLongAdLsn (Volume, &LogicalVolDesc->LogicalVolumeContentsUse);
//
- // Read extent (Long Ad).
+ // As per UDF 2.60 specification:
+ //
+ // There shall be exactly one File Set Descriptor recorded per Logical
+ // Volume.
+ //
+ // Read disk block
//
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
MultU64x32 (Lsn, LogicalVolDesc->LogicalBlockSize),
- sizeof (UDF_FILE_SET_DESCRIPTOR),
- (VOID *)FileSetDesc
+ sizeof (Volume->FileSetDesc),
+ &Volume->FileSetDesc
);
if (EFI_ERROR (Status)) {
return Status;
}
//
- // Check if the read extent contains a valid FSD's tag identifier.
+ // Check if read block is a File Set Descriptor
//
- if (!IS_FSD (FileSetDesc)) {
+ if (!IS_FSD (&Volume->FileSetDesc)) {
return EFI_VOLUME_CORRUPTED;
}
@@ -348,71 +310,6 @@ FindFileSetDescriptor (
}
//
-// Get all File Set Descriptors for each Logical Volume Descriptor.
-//
-EFI_STATUS
-GetFileSetDescriptors (
- IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
- IN EFI_DISK_IO_PROTOCOL *DiskIo,
- IN OUT UDF_VOLUME_INFO *Volume
- )
-{
- EFI_STATUS Status;
- UINTN Index;
- UDF_FILE_SET_DESCRIPTOR *FileSetDesc;
- UINTN Count;
-
- Volume->FileSetDescs =
- (UDF_FILE_SET_DESCRIPTOR **)AllocateZeroPool (
- Volume->LogicalVolDescsNo * sizeof (UDF_FILE_SET_DESCRIPTOR));
- if (Volume->FileSetDescs == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- for (Index = 0; Index < Volume->LogicalVolDescsNo; Index++) {
- FileSetDesc = AllocateZeroPool (sizeof (UDF_FILE_SET_DESCRIPTOR));
- if (FileSetDesc == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Error_Alloc_Fsd;
- }
-
- //
- // Find a FSD for this LVD.
- //
- Status = FindFileSetDescriptor (
- BlockIo,
- DiskIo,
- Volume,
- Index,
- FileSetDesc
- );
- if (EFI_ERROR (Status)) {
- goto Error_Find_Fsd;
- }
-
- //
- // Got one. Save it.
- //
- Volume->FileSetDescs[Index] = FileSetDesc;
- }
-
- Volume->FileSetDescsNo = Volume->LogicalVolDescsNo;
- return EFI_SUCCESS;
-
-Error_Find_Fsd:
- Count = Index + 1;
- for (Index = 0; Index < Count; Index++) {
- FreePool ((VOID *)Volume->FileSetDescs[Index]);
- }
-
- FreePool ((VOID *)Volume->FileSetDescs);
- Volume->FileSetDescs = NULL;
-
-Error_Alloc_Fsd:
- return Status;
-}
-
-//
// Read Volume and File Structure on an UDF file system.
//
EFI_STATUS
@@ -424,9 +321,10 @@ ReadVolumeFileStructure (
{
EFI_STATUS Status;
UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER AnchorPoint;
+ UDF_EXTENT_AD *ExtentAd;
//
- // Find an AVDP.
+ // Find Anchor Volume Descriptor Pointer
//
Status = FindAnchorVolumeDescriptorPointer (
BlockIo,
@@ -438,12 +336,18 @@ ReadVolumeFileStructure (
}
//
- // AVDP has been found. Start MVDS.
+ // Save Main VDS start block number
+ //
+ ExtentAd = &AnchorPoint.MainVolumeDescriptorSequenceExtent;
+
+ Volume->MainVdsStartLocation = (UINT64)ExtentAd->ExtentLocation;
+
+ //
+ // Start Main Volume Descriptor Sequence.
//
Status = StartMainVolumeDescriptorSequence (
BlockIo,
DiskIo,
- &AnchorPoint,
Volume
);
if (EFI_ERROR (Status)) {
@@ -699,6 +603,7 @@ GetAllocationDescriptorLsn (
return GetLongAdLsn (Volume, (UDF_LONG_ALLOCATION_DESCRIPTOR *)Ad);
} else if (RecordingFlags == SHORT_ADS_SEQUENCE) {
return GetShortAdLsn (
+ Volume,
GetPdFromLongAd (Volume, ParentIcb),
(UDF_SHORT_ALLOCATION_DESCRIPTOR *)Ad
);
@@ -740,7 +645,7 @@ GetAedAdsOffset (
return EFI_OUT_OF_RESOURCES;
}
- LogicalBlockSize = LV_BLOCK_SIZE (Volume, UDF_DEFAULT_LV_NUM);
+ LogicalBlockSize = Volume->LogicalVolDesc.LogicalBlockSize;
//
// Read extent.
@@ -890,7 +795,7 @@ ReadFile (
UINT32 ExtentLength;
UDF_FE_RECORDING_FLAGS RecordingFlags;
- LogicalBlockSize = LV_BLOCK_SIZE (Volume, UDF_DEFAULT_LV_NUM);
+ LogicalBlockSize = Volume->LogicalVolDesc.LogicalBlockSize;
DoFreeAed = FALSE;
//
@@ -1355,6 +1260,9 @@ ReadUdfVolumeInformation (
{
EFI_STATUS Status;
+ //
+ // Read all necessary UDF volume information and keep it private to the driver
+ //
Status = ReadVolumeFileStructure (
BlockIo,
DiskIo,
@@ -1364,13 +1272,12 @@ ReadUdfVolumeInformation (
return Status;
}
- Status = GetFileSetDescriptors (
- BlockIo,
- DiskIo,
- Volume
- );
+ //
+ // Find File Set Descriptor
+ //
+ Status = FindFileSetDescriptor (BlockIo, DiskIo, Volume);
if (EFI_ERROR (Status)) {
- CleanupVolumeInformation (Volume);
+ return Status;
}
return Status;
@@ -1407,7 +1314,7 @@ FindRootDirectory (
BlockIo,
DiskIo,
Volume,
- &Volume->FileSetDescs[0]->RootDirectoryIcb,
+ &Volume->FileSetDesc.RootDirectoryIcb,
&File->FileEntry
);
if (EFI_ERROR (Status)) {
@@ -1424,7 +1331,7 @@ FindRootDirectory (
L"\\",
NULL,
&Parent,
- &Volume->FileSetDescs[0]->RootDirectoryIcb,
+ &Volume->FileSetDesc.RootDirectoryIcb,
File
);
if (EFI_ERROR (Status)) {
@@ -1465,7 +1372,7 @@ FindFileEntry (
UINT32 LogicalBlockSize;
Lsn = GetLongAdLsn (Volume, Icb);
- LogicalBlockSize = LV_BLOCK_SIZE (Volume, UDF_DEFAULT_LV_NUM);
+ LogicalBlockSize = Volume->LogicalVolDesc.LogicalBlockSize;
*FileEntry = AllocateZeroPool (Volume->FileEntrySize);
if (*FileEntry == NULL) {
@@ -1959,43 +1866,6 @@ Error_Find_File:
}
/**
- Clean up in-memory UDF volume information.
-
- @param[in] Volume Volume information pointer.
-
-**/
-VOID
-CleanupVolumeInformation (
- IN UDF_VOLUME_INFO *Volume
- )
-{
- UINTN Index;
-
- if (Volume->LogicalVolDescs != NULL) {
- for (Index = 0; Index < Volume->LogicalVolDescsNo; Index++) {
- FreePool ((VOID *)Volume->LogicalVolDescs[Index]);
- }
- FreePool ((VOID *)Volume->LogicalVolDescs);
- }
-
- if (Volume->PartitionDescs != NULL) {
- for (Index = 0; Index < Volume->PartitionDescsNo; Index++) {
- FreePool ((VOID *)Volume->PartitionDescs[Index]);
- }
- FreePool ((VOID *)Volume->PartitionDescs);
- }
-
- if (Volume->FileSetDescs != NULL) {
- for (Index = 0; Index < Volume->FileSetDescsNo; Index++) {
- FreePool ((VOID *)Volume->FileSetDescs[Index]);
- }
- FreePool ((VOID *)Volume->FileSetDescs);
- }
-
- ZeroMem ((VOID *)Volume, sizeof (UDF_VOLUME_INFO));
-}
-
-/**
Clean up in-memory UDF file information.
@param[in] File File information pointer.
@@ -2249,91 +2119,100 @@ GetVolumeSize (
OUT UINT64 *FreeSpaceSize
)
{
- UDF_EXTENT_AD ExtentAd;
- UINT32 LogicalBlockSize;
- UINT64 Lsn;
- EFI_STATUS Status;
- UDF_LOGICAL_VOLUME_INTEGRITY *LogicalVolInt;
- UINTN Index;
- UINTN Length;
- UINT32 LsnsNo;
-
- *VolumeSize = 0;
- *FreeSpaceSize = 0;
-
- for (Index = 0; Index < Volume->LogicalVolDescsNo; Index++) {
- CopyMem ((VOID *)&ExtentAd,
- (VOID *)&Volume->LogicalVolDescs[Index]->IntegritySequenceExtent,
- sizeof (UDF_EXTENT_AD));
- if (ExtentAd.ExtentLength == 0) {
- continue;
- }
+ EFI_STATUS Status;
+ UDF_LOGICAL_VOLUME_DESCRIPTOR *LogicalVolDesc;
+ UDF_EXTENT_AD *ExtentAd;
+ UINT64 Lsn;
+ UINT32 LogicalBlockSize;
+ UDF_LOGICAL_VOLUME_INTEGRITY *LogicalVolInt;
+ UINTN Index;
+ UINTN Length;
+ UINT32 LsnsNo;
- LogicalBlockSize = LV_BLOCK_SIZE (Volume, Index);
+ LogicalVolDesc = &Volume->LogicalVolDesc;
- Read_Next_Sequence:
- LogicalVolInt = (UDF_LOGICAL_VOLUME_INTEGRITY *)
- AllocatePool (ExtentAd.ExtentLength);
- if (LogicalVolInt == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
+ ExtentAd = &LogicalVolDesc->IntegritySequenceExtent;
- Lsn = (UINT64)ExtentAd.ExtentLocation;
+ if (ExtentAd->ExtentLength == 0) {
+ return EFI_VOLUME_CORRUPTED;
+ }
- Status = DiskIo->ReadDisk (
- DiskIo,
- BlockIo->Media->MediaId,
- MultU64x32 (Lsn, LogicalBlockSize),
- ExtentAd.ExtentLength,
- (VOID *)LogicalVolInt
- );
- if (EFI_ERROR (Status)) {
- FreePool ((VOID *)LogicalVolInt);
- return Status;
- }
+ LogicalVolInt = AllocatePool (ExtentAd->ExtentLength);
+ if (LogicalVolInt == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
- if (!IS_LVID (LogicalVolInt)) {
- FreePool ((VOID *)LogicalVolInt);
- return EFI_VOLUME_CORRUPTED;
- }
+ //
+ // Get location of Logical Volume Integrity Descriptor
+ //
+ Lsn = (UINT64)ExtentAd->ExtentLocation - Volume->MainVdsStartLocation;
- Length = LogicalVolInt->NumberOfPartitions;
- for (Index = 0; Index < Length; Index += sizeof (UINT32)) {
- LsnsNo = *(UINT32 *)((UINT8 *)LogicalVolInt->Data + Index);
- if (LsnsNo == 0xFFFFFFFFUL) {
- //
- // Size not specified.
- //
- continue;
- }
+ LogicalBlockSize = LogicalVolDesc->LogicalBlockSize;
- *FreeSpaceSize += MultU64x32 ((UINT64)LsnsNo, LogicalBlockSize);
- }
+ //
+ // Read disk block
+ //
+ Status = DiskIo->ReadDisk (
+ DiskIo,
+ BlockIo->Media->MediaId,
+ MultU64x32 (Lsn, LogicalBlockSize),
+ ExtentAd->ExtentLength,
+ LogicalVolInt
+ );
+ if (EFI_ERROR (Status)) {
+ goto Out_Free;
+ }
- Length = (LogicalVolInt->NumberOfPartitions * sizeof (UINT32)) << 1;
- for (; Index < Length; Index += sizeof (UINT32)) {
- LsnsNo = *(UINT32 *)((UINT8 *)LogicalVolInt->Data + Index);
- if (LsnsNo == 0xFFFFFFFFUL) {
- //
- // Size not specified.
- //
- continue;
- }
+ //
+ // Check if read block is a Logical Volume Integrity Descriptor
+ //
+ if (!IS_LVID (LogicalVolInt)) {
+ Status = EFI_VOLUME_CORRUPTED;
+ goto Out_Free;
+ }
- *VolumeSize += MultU64x32 ((UINT64)LsnsNo, LogicalBlockSize);
- }
+ *VolumeSize = 0;
+ *FreeSpaceSize = 0;
- CopyMem ((VOID *)&ExtentAd,(VOID *)&LogicalVolInt->NextIntegrityExtent,
- sizeof (UDF_EXTENT_AD));
- if (ExtentAd.ExtentLength > 0) {
- FreePool ((VOID *)LogicalVolInt);
- goto Read_Next_Sequence;
+ Length = LogicalVolInt->NumberOfPartitions;
+ for (Index = 0; Index < Length; Index += sizeof (UINT32)) {
+ LsnsNo = *(UINT32 *)((UINT8 *)LogicalVolInt->Data + Index);
+ //
+ // Check if size is not specified
+ //
+ if (LsnsNo == 0xFFFFFFFFUL) {
+ continue;
}
+ //
+ // Accumulate free space size
+ //
+ *FreeSpaceSize += MultU64x32 ((UINT64)LsnsNo, LogicalBlockSize);
+ }
- FreePool ((VOID *)LogicalVolInt);
+ Length = LogicalVolInt->NumberOfPartitions * sizeof (UINT32) * 2;
+ for (; Index < Length; Index += sizeof (UINT32)) {
+ LsnsNo = *(UINT32 *)((UINT8 *)LogicalVolInt->Data + Index);
+ //
+ // Check if size is not specified
+ //
+ if (LsnsNo == 0xFFFFFFFFUL) {
+ continue;
+ }
+ //
+ // Accumulate used volume space
+ //
+ *VolumeSize += MultU64x32 ((UINT64)LsnsNo, LogicalBlockSize);
}
- return EFI_SUCCESS;
+ Status = EFI_SUCCESS;
+
+Out_Free:
+ //
+ // Free Logical Volume Integrity Descriptor
+ //
+ FreePool (LogicalVolInt);
+
+ return Status;
}
/**
diff --git a/MdeModulePkg/Universal/Disk/UdfDxe/Udf.c b/MdeModulePkg/Universal/Disk/UdfDxe/Udf.c
index 49dc7077b7..d4163b89ca 100644
--- a/MdeModulePkg/Universal/Disk/UdfDxe/Udf.c
+++ b/MdeModulePkg/Universal/Disk/UdfDxe/Udf.c
@@ -276,13 +276,6 @@ UdfDriverBindingStop (
NULL
);
- //
- // Check if there's any open file. If so, clean them up.
- //
- if (PrivFsData->OpenFiles > 0) {
- CleanupVolumeInformation (&PrivFsData->Volume);
- }
-
FreePool ((VOID *)PrivFsData);
}
diff --git a/MdeModulePkg/Universal/Disk/UdfDxe/Udf.h b/MdeModulePkg/Universal/Disk/UdfDxe/Udf.h
index 240d420ff5..c5f83914d8 100644
--- a/MdeModulePkg/Universal/Disk/UdfDxe/Udf.h
+++ b/MdeModulePkg/Universal/Disk/UdfDxe/Udf.h
@@ -49,16 +49,8 @@
{ 0x89, 0x56, 0x73, 0xCD, 0xA3, 0x26, 0xCD, 0x0A } \
}
-#define UDF_DEFAULT_LV_NUM 0
-
#define IS_PVD(_Pointer) \
((BOOLEAN)(_GET_TAG_ID (_Pointer) == 1))
-#define IS_PD(_Pointer) \
- ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 5))
-#define IS_LVD(_Pointer) \
- ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 6))
-#define IS_TD(_Pointer) \
- ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 8))
#define IS_FSD(_Pointer) \
((BOOLEAN)(_GET_TAG_ID (_Pointer) == 256))
#define IS_FE(_Pointer) \
@@ -152,14 +144,8 @@ typedef enum {
#define IS_VALID_COMPRESSION_ID(_CompId) \
((BOOLEAN)((_CompId) == 8 || (_CompId) == 16))
-#define LV_BLOCK_SIZE(_Vol, _LvNum) \
- (_Vol)->LogicalVolDescs[(_LvNum)]->LogicalBlockSize
-
#define UDF_STANDARD_IDENTIFIER_LENGTH 5
-#define LV_UDF_REVISION(_Lv) \
- *(UINT16 *)(UINTN)(_Lv)->DomainIdentifier.IdentifierSuffix
-
#pragma pack(1)
typedef struct {
@@ -186,17 +172,6 @@ typedef struct {
#pragma pack(1)
typedef struct {
- UINT8 CharacterSetType;
- UINT8 CharacterSetInfo[63];
-} UDF_CHAR_SPEC;
-
-typedef struct {
- UINT8 Flags;
- UINT8 Identifier[23];
- UINT8 IdentifierSuffix[8];
-} UDF_ENTITY_ID;
-
-typedef struct {
UINT16 TypeAndTimezone;
INT16 Year;
UINT8 Month;
@@ -210,17 +185,6 @@ typedef struct {
} UDF_TIMESTAMP;
typedef struct {
- UINT32 LogicalBlockNumber;
- UINT16 PartitionReferenceNumber;
-} UDF_LB_ADDR;
-
-typedef struct {
- UINT32 ExtentLength;
- UDF_LB_ADDR ExtentLocation;
- UINT8 ImplementationUse[6];
-} UDF_LONG_ALLOCATION_DESCRIPTOR;
-
-typedef struct {
UDF_DESCRIPTOR_TAG DescriptorTag;
UINT32 PrevAllocationExtentDescriptor;
UINT32 LengthOfAllocationDescriptors;
@@ -235,37 +199,6 @@ typedef struct {
} UDF_VOLUME_DESCRIPTOR;
typedef struct {
- UDF_DESCRIPTOR_TAG DescriptorTag;
- UINT32 VolumeDescriptorSequenceNumber;
- UINT16 PartitionFlags;
- UINT16 PartitionNumber;
- UDF_ENTITY_ID PartitionContents;
- UINT8 PartitionContentsUse[128];
- UINT32 AccessType;
- UINT32 PartitionStartingLocation;
- UINT32 PartitionLength;
- UDF_ENTITY_ID ImplementationIdentifier;
- UINT8 ImplementationUse[128];
- UINT8 Reserved[156];
-} UDF_PARTITION_DESCRIPTOR;
-
-typedef struct {
- UDF_DESCRIPTOR_TAG DescriptorTag;
- UINT32 VolumeDescriptorSequenceNumber;
- UDF_CHAR_SPEC DescriptorCharacterSet;
- UINT8 LogicalVolumeIdentifier[128];
- UINT32 LogicalBlockSize;
- UDF_ENTITY_ID DomainIdentifier;
- UDF_LONG_ALLOCATION_DESCRIPTOR LogicalVolumeContentsUse;
- UINT32 MapTableLength;
- UINT32 NumberOfPartitionMaps;
- UDF_ENTITY_ID ImplementationIdentifier;
- UINT8 ImplementationUse[128];
- UDF_EXTENT_AD IntegritySequenceExtent;
- UINT8 PartitionMaps[6];
-} UDF_LOGICAL_VOLUME_DESCRIPTOR;
-
-typedef struct {
UDF_DESCRIPTOR_TAG DescriptorTag;
UDF_TIMESTAMP RecordingDateTime;
UINT32 IntegrityType;
@@ -389,12 +322,10 @@ typedef struct {
// UDF filesystem driver's private data
//
typedef struct {
- UDF_LOGICAL_VOLUME_DESCRIPTOR **LogicalVolDescs;
- UINTN LogicalVolDescsNo;
- UDF_PARTITION_DESCRIPTOR **PartitionDescs;
- UINTN PartitionDescsNo;
- UDF_FILE_SET_DESCRIPTOR **FileSetDescs;
- UINTN FileSetDescsNo;
+ UINT64 MainVdsStartLocation;
+ UDF_LOGICAL_VOLUME_DESCRIPTOR LogicalVolDesc;
+ UDF_PARTITION_DESCRIPTOR PartitionDesc;
+ UDF_FILE_SET_DESCRIPTOR FileSetDesc;
UINTN FileEntrySize;
} UDF_VOLUME_INFO;
@@ -883,17 +814,6 @@ ResolveSymlink (
);
/**
- Clean up in-memory UDF volume information.
-
- @param[in] Volume Volume information pointer.
-
-**/
-VOID
-CleanupVolumeInformation (
- IN UDF_VOLUME_INFO *Volume
- );
-
-/**
Clean up in-memory UDF file information.
@param[in] File File information pointer.
--
2.11.0
next prev parent reply other threads:[~2017-09-17 13:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-17 13:13 [PATCH v2 0/3] UDF partition driver fix Paulo Alcantara
2017-09-17 13:13 ` [PATCH v2 1/3] MdePkg: Add UDF volume structure definitions Paulo Alcantara
2017-09-18 0:28 ` Ni, Ruiyu
2017-09-18 0:42 ` Ni, Ruiyu
2017-09-18 13:52 ` Paulo Alcantara
2017-09-18 13:50 ` Paulo Alcantara
2017-09-17 13:13 ` [PATCH v2 2/3] MdeModulePkg/PartitionDxe: Fix creation of UDF logical partition Paulo Alcantara
2017-09-18 0:54 ` Ni, Ruiyu
2017-09-18 16:38 ` Paulo Alcantara
2017-09-20 8:14 ` Ni, Ruiyu
2017-09-20 9:59 ` Laszlo Ersek
2017-09-20 10:11 ` Ni, Ruiyu
2017-09-20 11:09 ` Laszlo Ersek
2017-09-20 12:36 ` Gao, Liming
2017-09-17 13:13 ` Paulo Alcantara [this message]
2017-09-18 1:00 ` [PATCH v2 3/3] MdeModulePkg/UdfDxe: Rework driver to support PartitionDxe changes Ni, Ruiyu
2017-09-18 16:51 ` Paulo Alcantara
2017-09-20 7:52 ` Ni, Ruiyu
2017-09-18 4:52 ` [PATCH v2 0/3] UDF partition driver fix Ni, Ruiyu
2017-09-18 17:49 ` Paulo Alcantara
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