NTSTATUS
FFSWriteFile(
IN PFFS_IRP_CONTEXT IrpContext)
{
NTSTATUS Status = STATUS_UNSUCCESSFUL;
PFFS_VCB Vcb = NULL;
PFFS_FCB Fcb = NULL;
PFFS_CCB Ccb = NULL;
PFILE_OBJECT FileObject = NULL;
PFILE_OBJECT CacheObject;
PDEVICE_OBJECT DeviceObject = NULL;
PIRP Irp = NULL;
PIO_STACK_LOCATION IoStackLocation = NULL;
ULONG Length;
ULONG ReturnedLength = 0;
LARGE_INTEGER ByteOffset;
BOOLEAN PagingIo;
BOOLEAN Nocache;
BOOLEAN SynchronousIo;
BOOLEAN MainResourceAcquired = FALSE;
BOOLEAN PagingIoResourceAcquired = FALSE;
BOOLEAN bNeedExtending = FALSE;
BOOLEAN bAppendFile = FALSE;
BOOLEAN bDeferred = FALSE;
PUCHAR Buffer = NULL;
__try
{
ASSERT(IrpContext);
ASSERT((IrpContext->Identifier.Type == FFSICX) &&
(IrpContext->Identifier.Size == sizeof(FFS_IRP_CONTEXT)));
DeviceObject = IrpContext->DeviceObject;
Vcb = (PFFS_VCB)DeviceObject->DeviceExtension;
ASSERT(Vcb != NULL);
ASSERT((Vcb->Identifier.Type == FFSVCB) &&
(Vcb->Identifier.Size == sizeof(FFS_VCB)));
FileObject = IrpContext->FileObject;
Fcb = (PFFS_FCB)FileObject->FsContext;
ASSERT(Fcb);
ASSERT((Fcb->Identifier.Type == FFSFCB) &&
(Fcb->Identifier.Size == sizeof(FFS_FCB)));
Ccb = (PFFS_CCB)FileObject->FsContext2;
Irp = IrpContext->Irp;
IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
Length = IoStackLocation->Parameters.Write.Length;
ByteOffset = IoStackLocation->Parameters.Write.ByteOffset;
PagingIo = (Irp->Flags & IRP_PAGING_IO ? TRUE : FALSE);
Nocache = (Irp->Flags & IRP_NOCACHE ? TRUE : FALSE);
SynchronousIo = (FileObject->Flags & FO_SYNCHRONOUS_IO ? TRUE : FALSE);
FFSPrint((DBG_INFO, "FFSWriteFile: Off=%I64xh Len=%xh Paging=%xh Nocache=%xh\n",
ByteOffset.QuadPart, Length, PagingIo, Nocache));
/*
if (IsFlagOn(Fcb->Flags, FCB_FILE_DELETED))
{
Status = STATUS_FILE_DELETED;
__leave;
}
if (IsFlagOn(Fcb->Flags, FCB_DELETE_PENDING))
{
Status = STATUS_DELETE_PENDING;
__leave;
}
*/
if (Length == 0)
{
Irp->IoStatus.Information = 0;
Status = STATUS_SUCCESS;
__leave;
}
if (Nocache &&
(ByteOffset.LowPart & (SECTOR_SIZE - 1) ||
Length & (SECTOR_SIZE - 1)))
{
Status = STATUS_INVALID_PARAMETER;
__leave;
}
if (FlagOn(IrpContext->MinorFunction, IRP_MN_DPC))
{
ClearFlag(IrpContext->MinorFunction, IRP_MN_DPC);
Status = STATUS_PENDING;
__leave;
}
#if FALSE
if (!Nocache)
{
BOOLEAN bAgain = IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_DEFERRED);
BOOLEAN bWait = IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
BOOLEAN bQueue = IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_REQUEUED);
if (!CcCanIWrite(
FileObject,
Length,
(bWait && bQueue),
bAgain))
{
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_DEFERRED);
CcDeferWrite(FileObject,
(PCC_POST_DEFERRED_WRITE)FFSDeferWrite,
IrpContext,
Irp,
Length,
bAgain);
bDeferred = TRUE;
FFSBreakPoint();
Status = STATUS_PENDING;
__leave;
}
}
#endif
if (IsEndOfFile(ByteOffset))
{
bAppendFile = TRUE;
ByteOffset.QuadPart = Fcb->Header.FileSize.QuadPart;
}
if (FlagOn(Fcb->FFSMcb->FileAttr, FILE_ATTRIBUTE_DIRECTORY) && !PagingIo)
{
Status = STATUS_INVALID_DEVICE_REQUEST;
__leave;
}
//
// Do flushing for such cases
//
if (Nocache && !PagingIo && (Fcb->SectionObject.DataSectionObject != NULL))
{
ExAcquireResourceExclusive(&Fcb->MainResource,
IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT));
MainResourceAcquired = TRUE;
ExAcquireSharedStarveExclusive(&Fcb->PagingIoResource, TRUE);
ExReleaseResource(&Fcb->PagingIoResource);
CcFlushCache(&(Fcb->SectionObject),
&ByteOffset,
Length,
&(Irp->IoStatus));
ClearFlag(Fcb->Flags, FCB_FILE_MODIFIED);
if (!NT_SUCCESS(Irp->IoStatus.Status))
{
Status = Irp->IoStatus.Status;
__leave;
}
ExAcquireSharedStarveExclusive(&Fcb->PagingIoResource, TRUE);
ExReleaseResource(&Fcb->PagingIoResource);
CcPurgeCacheSection(&(Fcb->SectionObject),
(PLARGE_INTEGER)&(ByteOffset),
Length,
FALSE);
ExReleaseResource(&Fcb->MainResource);
MainResourceAcquired = FALSE;
}
if (!PagingIo)
{
if (!ExAcquireResourceExclusiveLite(
&Fcb->MainResource,
IrpContext->IsSynchronous))
{
Status = STATUS_PENDING;
__leave;
}
MainResourceAcquired = TRUE;
}
else
{
/*
ULONG ResShCnt, ResExCnt;
ResShCnt = ExIsResourceAcquiredSharedLite(&Fcb->PagingIoResource);
ResExCnt = ExIsResourceAcquiredExclusiveLite(&Fcb->PagingIoResource);
FFSPrint((DBG_USER, "FFSWriteFile: Inode=%xh %S PagingIo: %xh:%xh Synchronous=%xh\n",
Fcb->FFSMcb->Inode, Fcb->FFSMcb->ShortName.Buffer, ResShCnt, ResExCnt, IrpContext->IsSynchronous));
*/
if (!ExAcquireResourceSharedLite(
&Fcb->PagingIoResource,
IrpContext->IsSynchronous))
{
Status = STATUS_PENDING;
__leave;
}
PagingIoResourceAcquired = TRUE;
}
if (!PagingIo)
{
if (!FsRtlCheckLockForWriteAccess(
&Fcb->FileLockAnchor,
Irp))
{
Status = STATUS_FILE_LOCK_CONFLICT;
__leave;
}
}
if (Nocache)
{
if ((ByteOffset.QuadPart + Length) >
Fcb->Header.AllocationSize.QuadPart)
{
if (ByteOffset.QuadPart >=
Fcb->Header.AllocationSize.QuadPart)
{
Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
__leave;
}
else
{
if (Length > (ULONG)(Fcb->Header.AllocationSize.QuadPart
- ByteOffset.QuadPart))
{
Length = (ULONG)(Fcb->Header.AllocationSize.QuadPart
- ByteOffset.QuadPart);
}
}
}
}
if (!Nocache)
{
if (FlagOn(Fcb->FFSMcb->FileAttr, FILE_ATTRIBUTE_DIRECTORY))
{
__leave;
}
if (FileObject->PrivateCacheMap == NULL)
{
CcInitializeCacheMap(
FileObject,
(PCC_FILE_SIZES)(&Fcb->Header.AllocationSize),
FALSE,
&FFSGlobal->CacheManagerCallbacks,
Fcb);
CcSetReadAheadGranularity(
FileObject,
READ_AHEAD_GRANULARITY);
CcSetFileSizes(
FileObject,
(PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
}
CacheObject = FileObject;
//
// Need extending the size of inode ?
//
if ((bAppendFile) || ((ULONG)(ByteOffset.QuadPart + Length) >
(ULONG)(Fcb->Header.FileSize.QuadPart)))
{
LARGE_INTEGER ExtendSize;
LARGE_INTEGER FileSize;
bNeedExtending = TRUE;
FileSize = Fcb->Header.FileSize;
ExtendSize.QuadPart = (LONGLONG)(ByteOffset.QuadPart + Length);
if (ExtendSize.QuadPart > Fcb->Header.AllocationSize.QuadPart)
{
if (!FFSExpandFile(IrpContext, Vcb, Fcb, &ExtendSize))
{
Status = STATUS_INSUFFICIENT_RESOURCES;
__leave;
}
}
{
Fcb->Header.FileSize.QuadPart = ExtendSize.QuadPart;
Fcb->dinode1->di_size = (ULONG)ExtendSize.QuadPart;
}
if (FileObject->PrivateCacheMap)
{
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
if (ByteOffset.QuadPart > FileSize.QuadPart)
{
FFSZeroHoles(IrpContext, Vcb, FileObject, FileSize.QuadPart,
ByteOffset.QuadPart - FileSize.QuadPart);
}
if (Fcb->Header.AllocationSize.QuadPart > ExtendSize.QuadPart)
{
FFSZeroHoles(IrpContext, Vcb, FileObject, ExtendSize.QuadPart,
Fcb->Header.AllocationSize.QuadPart - ExtendSize.QuadPart);
}
}
if (FFSv1SaveInode(IrpContext, Vcb, Fcb->FFSMcb->Inode, Fcb->dinode1))
{
Status = STATUS_SUCCESS;
}
FFSNotifyReportChange(
IrpContext,
Vcb,
Fcb,
FILE_NOTIFY_CHANGE_SIZE,
FILE_ACTION_MODIFIED);
}
if (FlagOn(IrpContext->MinorFunction, IRP_MN_MDL))
{
CcPrepareMdlWrite(
CacheObject,
(&ByteOffset),
Length,
&Irp->MdlAddress,
&Irp->IoStatus);
Status = Irp->IoStatus.Status;
}
else
{
Buffer = FFSGetUserBuffer(Irp);
if (Buffer == NULL)
{
FFSBreakPoint();
Status = STATUS_INVALID_USER_BUFFER;
__leave;
}
if (!CcCopyWrite(
CacheObject,
(PLARGE_INTEGER)&ByteOffset,
Length,
IrpContext->IsSynchronous,
Buffer))
{
Status = STATUS_PENDING;
__leave;
}
Status = Irp->IoStatus.Status;
}
if (NT_SUCCESS(Status))
{
Irp->IoStatus.Information = Length;
if (IsFlagOn(Vcb->Flags, VCB_FLOPPY_DISK))
{
FFSPrint((DBG_USER, "FFSWriteFile is starting FlushingDpc...\n"));
FFSStartFloppyFlushDpc(Vcb, Fcb, FileObject);
}
}
}
else
{
ReturnedLength = Length;
Status = FFSLockUserBuffer(
IrpContext->Irp,
Length,
IoReadAccess);
if (!NT_SUCCESS(Status))
{
__leave;
}
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = Length;
Status =
FFSv1WriteInode(
IrpContext,
Vcb,
Fcb->dinode1,
(ULONGLONG)(ByteOffset.QuadPart),
NULL,
Length,
TRUE,
&ReturnedLength);
Irp = IrpContext->Irp;
}
}
__finally
{
if (PagingIoResourceAcquired)
{
ExReleaseResourceForThreadLite(
&Fcb->PagingIoResource,
ExGetCurrentResourceThread());
}
if (MainResourceAcquired)
{
ExReleaseResourceForThreadLite(
&Fcb->MainResource,
ExGetCurrentResourceThread());
}
if (!IrpContext->ExceptionInProgress)
{
if (Irp)
{
if (Status == STATUS_PENDING)
{
if (!bDeferred)
{
Status = FFSLockUserBuffer(
IrpContext->Irp,
Length,
IoReadAccess);
if (NT_SUCCESS(Status))
{
Status = FFSQueueRequest(IrpContext);
}
else
{
FFSCompleteIrpContext(IrpContext, Status);
}
}
}
else
{
if (NT_SUCCESS(Status))
{
if (SynchronousIo && !PagingIo)
{
FileObject->CurrentByteOffset.QuadPart =
ByteOffset.QuadPart + Irp->IoStatus.Information;
}
if (!PagingIo)
{
SetFlag(FileObject->Flags, FO_FILE_MODIFIED);
SetFlag(Fcb->Flags, FCB_FILE_MODIFIED);
}
}
FFSCompleteIrpContext(IrpContext, Status);
}
}
else
{
FFSFreeIrpContext(IrpContext);
}
}
}
return Status;
}
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdCleanup (IN PRFSD_IRP_CONTEXT IrpContext)
{
PDEVICE_OBJECT DeviceObject;
NTSTATUS Status = STATUS_SUCCESS;
PRFSD_VCB Vcb = 0;
BOOLEAN VcbResourceAcquired = FALSE;
PFILE_OBJECT FileObject;
PRFSD_FCB Fcb = 0;
BOOLEAN FcbResourceAcquired = FALSE;
BOOLEAN FcbPagingIoAcquired = FALSE;
PRFSD_CCB Ccb;
PIRP Irp;
PAGED_CODE();
_SEH2_TRY {
ASSERT(IrpContext != NULL);
ASSERT((IrpContext->Identifier.Type == RFSDICX) &&
(IrpContext->Identifier.Size == sizeof(RFSD_IRP_CONTEXT)));
DeviceObject = IrpContext->DeviceObject;
if (DeviceObject == RfsdGlobal->DeviceObject) {
Status = STATUS_SUCCESS;
_SEH2_LEAVE;
}
Vcb = (PRFSD_VCB) DeviceObject->DeviceExtension;
ASSERT(Vcb != NULL);
ASSERT((Vcb->Identifier.Type == RFSDVCB) &&
(Vcb->Identifier.Size == sizeof(RFSD_VCB)));
if (!IsFlagOn(Vcb->Flags, VCB_INITIALIZED)) {
Status = STATUS_SUCCESS;
_SEH2_LEAVE;
}
#ifdef _MSC_VER
#pragma prefast( suppress: 28137, "by design" )
#endif
if (!ExAcquireResourceExclusiveLite(
&Vcb->MainResource,
IrpContext->IsSynchronous
)) {
Status = STATUS_PENDING;
_SEH2_LEAVE;
}
VcbResourceAcquired = TRUE;
FileObject = IrpContext->FileObject;
Fcb = (PRFSD_FCB) FileObject->FsContext;
if (!Fcb) {
Status = STATUS_SUCCESS;
_SEH2_LEAVE;
}
if (Fcb->Identifier.Type == RFSDVCB) {
if (IsFlagOn(Vcb->Flags, VCB_VOLUME_LOCKED) &&
(Vcb->LockFile == FileObject) ) {
ClearFlag(Vcb->Flags, VCB_VOLUME_LOCKED);
Vcb->LockFile = NULL;
RfsdClearVpbFlag(Vcb->Vpb, VPB_LOCKED);
}
Vcb->OpenHandleCount--;
if (!Vcb->OpenHandleCount) {
IoRemoveShareAccess(FileObject, &Vcb->ShareAccess);
}
Status = STATUS_SUCCESS;
_SEH2_LEAVE;
}
ASSERT((Fcb->Identifier.Type == RFSDFCB) &&
(Fcb->Identifier.Size == sizeof(RFSD_FCB)));
/*
if ( !IsFlagOn(Vcb->Flags, VCB_READ_ONLY) &&
!IsFlagOn(Fcb->Flags, FCB_PAGE_FILE))
*/
{
#ifdef _MSC_VER
#pragma prefast( suppress: 28137, "by design" )
#endif
if (!ExAcquireResourceExclusiveLite(
&Fcb->MainResource,
IrpContext->IsSynchronous
))
{
Status = STATUS_PENDING;
_SEH2_LEAVE;
}
FcbResourceAcquired = TRUE;
}
Ccb = (PRFSD_CCB) FileObject->FsContext2;
if (!Ccb) {
Status = STATUS_SUCCESS;
_SEH2_LEAVE;
}
if (IsFlagOn(FileObject->Flags, FO_CLEANUP_COMPLETE)) {
if ( IsFlagOn(FileObject->Flags, FO_FILE_MODIFIED) &&
IsFlagOn(Vcb->Flags, VCB_FLOPPY_DISK) &&
!IsFlagOn(Vcb->Flags, VCB_WRITE_PROTECTED) ) {
Status = RfsdFlushFile(Fcb);
}
_SEH2_LEAVE;
}
ASSERT((Ccb->Identifier.Type == RFSDCCB) &&
(Ccb->Identifier.Size == sizeof(RFSD_CCB)));
Irp = IrpContext->Irp;
Fcb->OpenHandleCount--;
if (!IsFlagOn(FileObject->Flags, FO_CACHE_SUPPORTED )) {
Fcb->NonCachedOpenCount--;
}
Vcb->OpenFileHandleCount--;
if (IsFlagOn(Fcb->Flags, FCB_DELETE_ON_CLOSE)) {
SetFlag(Fcb->Flags, FCB_DELETE_PENDING);
if (IsDirectory(Fcb)) {
FsRtlNotifyFullChangeDirectory(
Vcb->NotifySync,
&Vcb->NotifyList,
Fcb,
NULL,
FALSE,
FALSE,
0,
NULL,
NULL,
NULL );
}
}
if (IsDirectory(Fcb)) {
FsRtlNotifyCleanup(
Vcb->NotifySync,
&Vcb->NotifyList,
Ccb );
} else {
//
// Drop any byte range locks this process may have on the file.
//
FsRtlFastUnlockAll(
&Fcb->FileLockAnchor,
FileObject,
IoGetRequestorProcess(Irp),
NULL );
//
// If there are no byte range locks owned by other processes on the
// file the fast I/O read/write functions doesn't have to check for
// locks so we set IsFastIoPossible to FastIoIsPossible again.
//
if (!FsRtlGetNextFileLock(&Fcb->FileLockAnchor, TRUE)) {
if (Fcb->Header.IsFastIoPossible != FastIoIsPossible) {
RfsdPrint((
DBG_INFO, ": %-16.16s %-31s %s\n",
RfsdGetCurrentProcessName(),
"FastIoIsPossible",
Fcb->AnsiFileName.Buffer
));
Fcb->Header.IsFastIoPossible = FastIoIsPossible;
}
}
}
if ( IsFlagOn( FileObject->Flags, FO_CACHE_SUPPORTED) &&
(Fcb->NonCachedOpenCount != 0) &&
(Fcb->NonCachedOpenCount == Fcb->ReferenceCount) &&
(Fcb->SectionObject.DataSectionObject != NULL)) {
if( !IsFlagOn(Vcb->Flags, VCB_READ_ONLY) &&
!IsFlagOn(Vcb->Flags, VCB_WRITE_PROTECTED)) {
CcFlushCache(&Fcb->SectionObject, NULL, 0, NULL);
}
ExAcquireResourceExclusiveLite(&(Fcb->PagingIoResource), TRUE);
ExReleaseResourceLite(&(Fcb->PagingIoResource));
CcPurgeCacheSection( &Fcb->SectionObject,
NULL,
0,
FALSE );
}
if (Fcb->OpenHandleCount == 0) {
if (IsFlagOn(Fcb->Flags, FCB_DELETE_PENDING)) {
//
// Have to delete this file...
//
#ifdef _MSC_VER
#pragma prefast( suppress: 28137, "by design" )
#endif
if (!ExAcquireResourceExclusiveLite(
&Fcb->PagingIoResource,
IrpContext->IsSynchronous
)) {
Status = STATUS_PENDING;
_SEH2_LEAVE;
}
FcbPagingIoAcquired = TRUE;
DbgBreak();
#if DISABLED
Status = RfsdDeleteFile(IrpContext, Vcb, Fcb);
if (NT_SUCCESS(Status)) {
if (IsDirectory(Fcb)) {
RfsdNotifyReportChange( IrpContext, Vcb, Fcb,
FILE_NOTIFY_CHANGE_DIR_NAME,
FILE_ACTION_REMOVED );
} else {
RfsdNotifyReportChange( IrpContext, Vcb, Fcb,
FILE_NOTIFY_CHANGE_FILE_NAME,
FILE_ACTION_REMOVED );
}
}
#endif
if (CcIsFileCached(FileObject)) {
CcSetFileSizes(FileObject,
(PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
SetFlag(FileObject->Flags, FO_FILE_MODIFIED);
}
if (FcbPagingIoAcquired) {
ExReleaseResourceForThreadLite(
&Fcb->PagingIoResource,
ExGetCurrentResourceThread() );
FcbPagingIoAcquired = FALSE;
}
}
}
if (!IsDirectory(Fcb) && FileObject->PrivateCacheMap) {
RfsdPrint((DBG_INFO, "RfsdCleanup: CcUninitializeCacheMap is called for %s.\n",
Fcb->AnsiFileName.Buffer ));
CcUninitializeCacheMap(
FileObject,
(PLARGE_INTEGER)(&(Fcb->Header.FileSize)),
NULL );
}
if (!Fcb->OpenHandleCount) {
IoRemoveShareAccess(FileObject, &Fcb->ShareAccess);
}
RfsdPrint((DBG_INFO, "RfsdCleanup: OpenCount: %u ReferCount: %u %s\n",
Fcb->OpenHandleCount, Fcb->ReferenceCount, Fcb->AnsiFileName.Buffer ));
Status = STATUS_SUCCESS;
if (FileObject) {
SetFlag(FileObject->Flags, FO_CLEANUP_COMPLETE);
}
} _SEH2_FINALLY {
if (FcbPagingIoAcquired) {
ExReleaseResourceForThreadLite(
&Fcb->PagingIoResource,
ExGetCurrentResourceThread() );
}
if (FcbResourceAcquired) {
ExReleaseResourceForThreadLite(
&Fcb->MainResource,
ExGetCurrentResourceThread() );
}
if (VcbResourceAcquired) {
ExReleaseResourceForThreadLite(
&Vcb->MainResource,
ExGetCurrentResourceThread());
}
if (!IrpContext->ExceptionInProgress) {
if (Status == STATUS_PENDING) {
RfsdQueueRequest(IrpContext);
} else {
IrpContext->Irp->IoStatus.Status = Status;
RfsdCompleteIrpContext(IrpContext, Status);
}
}
} _SEH2_END;
return Status;
}
BOOLEAN
W2kNtfsFlushMetaFile (
IN PDEVICE_OBJECT FSpyDeviceObject,
IN PDEVICE_OBJECT baseDeviceObject,
IN ULONG BufferLen,
IN PCHAR Buffer
)
{
PVCB vcb;
PVOLUME_DEVICE_OBJECT volDo;
PFILESPY_DEVICE_EXTENSION devExt;
NTSTATUS status;
BOOLEAN found;
PFILE_RECORD_SEGMENT_HEADER fileRecord;
PATTRIBUTE_RECORD_HEADER attribute;
LARGE_INTEGER validDataLength;
LARGE_INTEGER mftOffset;
BOOLEAN result1 = 0, result2 = 0, result3 = 0;
FILE_REFERENCE fileReference;
PATTRIBUTE_RECORD_HEADER mftBitmapAttribute;
// baseDeviceObject
// = ((PFILESPY_DEVICE_EXTENSION) (FSpyDeviceObject->DeviceExtension))->BaseVolumeDeviceObject;
volDo = (PVOLUME_DEVICE_OBJECT)baseDeviceObject;
vcb = &volDo->Vcb;
devExt = FSpyDeviceObject->DeviceExtension;
SPY_LOG_PRINT( LFS_DEBUG_LIB_NOISE,
("FSpyDeviceObject = %p, devExt = %p\n", FSpyDeviceObject, devExt));
ASSERT(Buffer);
if(Buffer == NULL)
return FALSE;
status = W2KNtfsPerformVerifyDiskRead (
devExt->DiskDeviceObject,
(PVOID)Buffer,
(LONGLONG)LlBytesFromClusters(vcb, vcb->MftStartLcn),
(LONG)BufferLen
);
if(!NT_SUCCESS(status)) {
DbgPrint("read fail\n");
return FALSE;
}
if(vcb->BitmapScb && vcb->BitmapScb->FileObject)
result1 = CcPurgeCacheSection (
&vcb->BitmapScb->NonpagedScb->SegmentObject,
NULL,
0,
FALSE
);
if(vcb->MftBitmapScb && vcb->MftBitmapScb->FileObject)
result2 = CcPurgeCacheSection (
&vcb->MftBitmapScb->NonpagedScb->SegmentObject,
NULL,
0,
FALSE
);
/* 0 - 3 can' be purged */
NtfsSetSegmentNumber(&fileReference, 0, 4);
mftOffset.QuadPart = NtfsFullSegmentNumber( &fileReference );
mftOffset.QuadPart = LlBytesFromFileRecords( vcb, mftOffset.QuadPart );
if(vcb->MftScb && vcb->MftScb->FileObject)
result3 = CcPurgeCacheSection (
&vcb->MftScb->NonpagedScb->SegmentObject,
&mftOffset,
(ULONG)vcb->MftScb->Header.FileSize.QuadPart,
FALSE
);
fileRecord = (PFILE_RECORD_SEGMENT_HEADER)Buffer;
// if(devExt->MftLsn.QuadPart == fileRecord->Lsn.QuadPart)
// goto DO_NOTHING;
// devExt->MftLsn.QuadPart = fileRecord->Lsn.QuadPart;
found = W2KNtfsFindAttribute(Buffer, $DATA, &attribute);
if(!found) {
DbgPrint("attribute fail\n");
//ASSERT(FALSE);
return FALSE;
}
if (NtfsIsAttributeResident( attribute )) {
// DbgPrint("attrHeader1->Form.Resident.ValueLength = %x\n",
// attrHeader1->Form.Resident.ValueLength);
ASSERT(FALSE); // do more
return FALSE;
} else
{
validDataLength.QuadPart = attribute->Form.Nonresident.ValidDataLength;
}
if(vcb->MftScb && validDataLength.QuadPart != vcb->MftScb->Header.ValidDataLength.QuadPart)
{
VCN vcn;
BOOLEAN result0 = 0, result1 = 0, result2 = 0,
result3 = 0, result4 = 0, result5 = 0;
SPY_LOG_PRINT( LFS_DEBUG_LIB_NOISE,
("attribute->Form.Nonresident.AllocatedLength = %x\n",
attribute->Form.Nonresident.AllocatedLength / 512));
SPY_LOG_PRINT( LFS_DEBUG_LIB_NOISE,
("attribute->Form.Nonresident.ValidDataLength = %x\n",
attribute->Form.Nonresident.ValidDataLength / 512));
SPY_LOG_PRINT( LFS_DEBUG_LIB_NOISE,
("attribute->Form.Nonresident.TotalAllocated = %x\n",
attribute->Form.Nonresident.TotalAllocated / 512));
// SPY_LOG_PRINT( LFS_DEBUG_LIB_NOISE,
// ("devExt->MftLsn.QuadPart = %I64x, fileRecord->Lsn.QuadPart = %I64x\n",
// devExt->MftLsn.QuadPart, fileRecord->Lsn.QuadPart));
vcb->MftScb->Header.AllocationSize.QuadPart
= attribute->Form.Nonresident.AllocatedLength;
vcb->MftScb->Header.ValidDataLength.QuadPart
= attribute->Form.Nonresident.ValidDataLength;
vcb->MftScb->Header.FileSize.QuadPart
= attribute->Form.Nonresident.FileSize;
vcb->MftScb->TotalAllocated
= vcb->MftScb->Header.AllocationSize.QuadPart;
CcSetFileSizes( vcb->MftScb->FileObject,
(PCC_FILE_SIZES)&vcb->MftScb->Header.AllocationSize
);
vcn = attribute->Form.Nonresident.LowestVcn;
do {
LCN lcn;
LONGLONG clusterCount;
W2KNtfsLookupAllocation (
attribute,
vcb->MftScb,
vcn,
&lcn,
&clusterCount,
NULL,
NULL
);
vcn += clusterCount;
} while(vcn < attribute->Form.Nonresident.HighestVcn);
}
found = W2KNtfsFindAttribute(Buffer, $BITMAP, &mftBitmapAttribute);
if(!found) {
DbgPrint("mftBitmapAttribute fail\n");
ASSERT(FALSE);
return FALSE;
}
if (NtfsIsAttributeResident( mftBitmapAttribute )) {
// DbgPrint("attrHeader1->Form.Resident.ValueLength = %x\n",
// attrHeader1->Form.Resident.ValueLength);
ASSERT(FALSE); // do more
} else
{
validDataLength.QuadPart = attribute->Form.Nonresident.ValidDataLength;
}
if(vcb->MftBitmapScb && validDataLength.QuadPart != vcb->MftBitmapScb->Header.ValidDataLength.QuadPart)
{
VCN mftBitmapVcn;
BOOLEAN result0 = 0, result1 = 0, result2 = 0,
result3 = 0, result4 = 0, result5 = 0;
vcb->MftBitmapScb->Header.AllocationSize.QuadPart
= mftBitmapAttribute->Form.Nonresident.AllocatedLength;
vcb->MftBitmapScb->Header.ValidDataLength.QuadPart
= mftBitmapAttribute->Form.Nonresident.ValidDataLength;
vcb->MftBitmapScb->Header.FileSize.QuadPart
= mftBitmapAttribute->Form.Nonresident.FileSize;
vcb->MftBitmapScb->TotalAllocated
= vcb->MftBitmapScb->Header.AllocationSize.QuadPart;
CcSetFileSizes( vcb->MftBitmapScb->FileObject,
(PCC_FILE_SIZES)&vcb->MftBitmapScb->Header.AllocationSize
);
mftBitmapVcn = mftBitmapAttribute->Form.Nonresident.LowestVcn;
do {
LCN mftBitmapLcn;
LONGLONG mftBitmapVcnClusterCount;
W2KNtfsLookupAllocation (
mftBitmapAttribute,
vcb->MftBitmapScb,
mftBitmapVcn,
&mftBitmapLcn,
&mftBitmapVcnClusterCount,
NULL,
NULL
);
mftBitmapVcn += mftBitmapVcnClusterCount;
} while(mftBitmapVcn < mftBitmapAttribute->Form.Nonresident.HighestVcn);
}
return TRUE;
}
NTSTATUS
Ext2WriteFile(IN PEXT2_IRP_CONTEXT IrpContext)
{
PEXT2_VCB Vcb = NULL;
PEXT2_FCB Fcb = NULL;
PEXT2_CCB Ccb = NULL;
PFILE_OBJECT FileObject = NULL;
PDEVICE_OBJECT DeviceObject = NULL;
PIRP Irp = NULL;
PIO_STACK_LOCATION IoStackLocation = NULL;
PUCHAR Buffer = NULL;
LARGE_INTEGER ByteOffset;
ULONG ReturnedLength = 0;
ULONG Length;
NTSTATUS Status = STATUS_UNSUCCESSFUL;
BOOLEAN OpPostIrp = FALSE;
BOOLEAN PagingIo = FALSE;
BOOLEAN Nocache = FALSE;
BOOLEAN SynchronousIo = FALSE;
BOOLEAN RecursiveWriteThrough = FALSE;
BOOLEAN MainResourceAcquired = FALSE;
BOOLEAN PagingIoResourceAcquired = FALSE;
BOOLEAN bDeferred = FALSE;
BOOLEAN UpdateFileValidSize = FALSE;
BOOLEAN FileSizesChanged = FALSE;
BOOLEAN rc;
__try {
ASSERT(IrpContext);
ASSERT((IrpContext->Identifier.Type == EXT2ICX) &&
(IrpContext->Identifier.Size == sizeof(EXT2_IRP_CONTEXT)));
DeviceObject = IrpContext->DeviceObject;
Vcb = (PEXT2_VCB) DeviceObject->DeviceExtension;
ASSERT(Vcb != NULL);
ASSERT((Vcb->Identifier.Type == EXT2VCB) &&
(Vcb->Identifier.Size == sizeof(EXT2_VCB)));
FileObject = IrpContext->FileObject;
Fcb = (PEXT2_FCB) FileObject->FsContext;
Ccb = (PEXT2_CCB) FileObject->FsContext2;
ASSERT(Fcb);
ASSERT((Fcb->Identifier.Type == EXT2FCB) &&
(Fcb->Identifier.Size == sizeof(EXT2_FCB)));
Irp = IrpContext->Irp;
IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
Length = IoStackLocation->Parameters.Write.Length;
ByteOffset = IoStackLocation->Parameters.Write.ByteOffset;
PagingIo = IsFlagOn(Irp->Flags, IRP_PAGING_IO);
Nocache = IsFlagOn(Irp->Flags, IRP_NOCACHE);
SynchronousIo = IsFlagOn(FileObject->Flags, FO_SYNCHRONOUS_IO);
if (PagingIo) {
ASSERT(Nocache);
}
DEBUG(DL_INF, ("Ext2WriteFile: %wZ Offset=%I64xh Length=%xh Paging=%xh Nocache=%xh\n",
&Fcb->Mcb->ShortName, ByteOffset.QuadPart, Length, PagingIo, Nocache));
if (IsSpecialFile(Fcb) || IsInodeSymLink(Fcb->Inode) ) {
Status = STATUS_INVALID_DEVICE_REQUEST;
__leave;
}
if (IsFileDeleted(Fcb->Mcb) ||
(IsSymLink(Fcb) && IsFileDeleted(Fcb->Mcb->Target)) ) {
Status = STATUS_FILE_DELETED;
__leave;
}
if (Length == 0) {
Irp->IoStatus.Information = 0;
Status = STATUS_SUCCESS;
__leave;
}
if (ByteOffset.LowPart == FILE_USE_FILE_POINTER_POSITION &&
ByteOffset.HighPart == -1) {
ByteOffset = FileObject->CurrentByteOffset;
} else if (IsWritingToEof(ByteOffset)) {
ByteOffset.QuadPart = Fcb->Header.FileSize.QuadPart;
}
if (Nocache && !PagingIo &&
( (ByteOffset.LowPart & (SECTOR_SIZE - 1)) ||
(Length & (SECTOR_SIZE - 1))) ) {
Status = STATUS_INVALID_PARAMETER;
__leave;
}
if (FlagOn(IrpContext->MinorFunction, IRP_MN_DPC)) {
ClearFlag(IrpContext->MinorFunction, IRP_MN_DPC);
Status = STATUS_PENDING;
__leave;
}
if (!Nocache) {
BOOLEAN bAgain = IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_DEFERRED);
BOOLEAN bWait = IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
BOOLEAN bQueue = IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_REQUEUED);
if ( !CcCanIWrite(
FileObject,
Length,
(bWait && bQueue),
bAgain ) ) {
Status = Ext2LockUserBuffer(
IrpContext->Irp,
Length,
IoReadAccess);
if (NT_SUCCESS(Status)) {
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_DEFERRED);
CcDeferWrite( FileObject,
(PCC_POST_DEFERRED_WRITE)Ext2DeferWrite,
IrpContext,
Irp,
Length,
bAgain );
bDeferred = TRUE;
Status = STATUS_PENDING;
__leave;
}
}
}
if (IsDirectory(Fcb) && !PagingIo) {
Status = STATUS_INVALID_DEVICE_REQUEST;
__leave;
}
if (IsFlagOn(Irp->Flags, IRP_SYNCHRONOUS_PAGING_IO) && !IrpContext->IsTopLevel) {
PIRP TopIrp;
TopIrp = IoGetTopLevelIrp();
if ( (ULONG_PTR)TopIrp > FSRTL_MAX_TOP_LEVEL_IRP_FLAG &&
NodeType(TopIrp) == IO_TYPE_IRP) {
PIO_STACK_LOCATION IrpStack;
IrpStack = IoGetCurrentIrpStackLocation(TopIrp);
if ((IrpStack->MajorFunction == IRP_MJ_WRITE) &&
(IrpStack->FileObject->FsContext == FileObject->FsContext) &&
!FlagOn(TopIrp->Flags, IRP_NOCACHE) ) {
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WRITE_THROUGH);
RecursiveWriteThrough = TRUE;
}
}
}
if (PagingIo) {
if (!ExAcquireResourceSharedLite(&Fcb->PagingIoResource, TRUE)) {
Status = STATUS_PENDING;
__leave;
}
PagingIoResourceAcquired = TRUE;
if ( (ByteOffset.QuadPart + Length) > Fcb->Header.FileSize.QuadPart) {
if (ByteOffset.QuadPart >= Fcb->Header.AllocationSize.QuadPart) {
Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
__leave;
} else {
ReturnedLength = (ULONG)(Fcb->Header.FileSize.QuadPart - ByteOffset.QuadPart);
if (ByteOffset.QuadPart + Length > Fcb->Header.AllocationSize.QuadPart)
Length = (ULONG)(Fcb->Header.AllocationSize.QuadPart - ByteOffset.QuadPart);
}
} else {
ReturnedLength = Length;
}
} else {
if (!Ext2CheckFileAccess(Vcb, Fcb->Mcb, Ext2FileCanWrite)) {
Status = STATUS_ACCESS_DENIED;
__leave;
}
if (IsDirectory(Fcb)) {
__leave;
}
if (!ExAcquireResourceExclusiveLite(&Fcb->MainResource, TRUE)) {
Status = STATUS_PENDING;
__leave;
}
MainResourceAcquired = TRUE;
//
// Do flushing for such cases
//
if (Nocache && Ccb != NULL && Fcb->SectionObject.DataSectionObject != NULL) {
ExAcquireSharedStarveExclusive( &Fcb->PagingIoResource, TRUE);
ExReleaseResourceLite(&Fcb->PagingIoResource);
CcFlushCache( &(Fcb->SectionObject),
&ByteOffset,
CEILING_ALIGNED(ULONG, Length, BLOCK_SIZE),
&(Irp->IoStatus));
ClearLongFlag(Fcb->Flags, FCB_FILE_MODIFIED);
if (!NT_SUCCESS(Irp->IoStatus.Status)) {
Status = Irp->IoStatus.Status;
__leave;
}
ExAcquireSharedStarveExclusive( &Fcb->PagingIoResource, TRUE);
ExReleaseResourceLite(&Fcb->PagingIoResource);
CcPurgeCacheSection( &(Fcb->SectionObject),
&(ByteOffset),
CEILING_ALIGNED(ULONG, Length, BLOCK_SIZE),
FALSE );
}
if (!FsRtlCheckLockForWriteAccess(&Fcb->FileLockAnchor, Irp)) {
Status = STATUS_FILE_LOCK_CONFLICT;
__leave;
}
if (Ccb != NULL) {
Status = FsRtlCheckOplock( &Fcb->Oplock,
Irp,
IrpContext,
Ext2OplockComplete,
Ext2LockIrp );
if (Status != STATUS_SUCCESS) {
OpPostIrp = TRUE;
__leave;
}
//
// Set the flag indicating if Fast I/O is possible
//
Fcb->Header.IsFastIoPossible = Ext2IsFastIoPossible(Fcb);
}
//
// Extend the inode size when the i/o is beyond the file end ?
//
if ((ByteOffset.QuadPart + Length) > Fcb->Header.FileSize.QuadPart) {
LARGE_INTEGER AllocationSize, Last;
if (!ExAcquireResourceExclusiveLite(&Fcb->PagingIoResource, TRUE)) {
Status = STATUS_PENDING;
__leave;
}
PagingIoResourceAcquired = TRUE;
/* let this irp wait, since it has to be synchronous */
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
Last.QuadPart = Fcb->Header.AllocationSize.QuadPart;
AllocationSize.QuadPart = (LONGLONG)(ByteOffset.QuadPart + Length);
AllocationSize.QuadPart = CEILING_ALIGNED(ULONGLONG,
(ULONGLONG)AllocationSize.QuadPart,
(ULONGLONG)BLOCK_SIZE);
/* tell Ext2ExpandFile to allocate unwritten extent or NULL blocks
for indirect files, otherwise we might get gabage data in holes */
IrpContext->MajorFunction += IRP_MJ_MAXIMUM_FUNCTION;
Status = Ext2ExpandFile(IrpContext, Vcb, Fcb->Mcb, &AllocationSize);
IrpContext->MajorFunction -= IRP_MJ_MAXIMUM_FUNCTION;
if (AllocationSize.QuadPart > Last.QuadPart) {
Fcb->Header.AllocationSize.QuadPart = AllocationSize.QuadPart;
SetLongFlag(Fcb->Flags, FCB_ALLOC_IN_WRITE);
}
ExReleaseResourceLite(&Fcb->PagingIoResource);
PagingIoResourceAcquired = FALSE;
if (ByteOffset.QuadPart >= Fcb->Header.AllocationSize.QuadPart) {
if (NT_SUCCESS(Status)) {
DbgBreak();
Status = STATUS_UNSUCCESSFUL;
}
__leave;
}
if (ByteOffset.QuadPart + Length > Fcb->Header.AllocationSize.QuadPart) {
Length = (ULONG)(Fcb->Header.AllocationSize.QuadPart - ByteOffset.QuadPart);
}
Fcb->Header.FileSize.QuadPart = Fcb->Inode->i_size = ByteOffset.QuadPart + Length;
Ext2SaveInode(IrpContext, Vcb, Fcb->Inode);
if (CcIsFileCached(FileObject)) {
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
}
FileObject->Flags |= FO_FILE_SIZE_CHANGED | FO_FILE_MODIFIED;
FileSizesChanged = TRUE;
if (Fcb->Header.FileSize.QuadPart >= 0x80000000 &&
!IsFlagOn(SUPER_BLOCK->s_feature_ro_compat, EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
SetFlag(SUPER_BLOCK->s_feature_ro_compat, EXT2_FEATURE_RO_COMPAT_LARGE_FILE);
Ext2SaveSuper(IrpContext, Vcb);
}
DEBUG(DL_IO, ("Ext2WriteFile: expanding %wZ to FS: %I64xh FA: %I64xh\n",
&Fcb->Mcb->ShortName, Fcb->Header.FileSize.QuadPart,
Fcb->Header.AllocationSize.QuadPart));
}
ReturnedLength = Length;
}
if (!Nocache) {
if (FileObject->PrivateCacheMap == NULL) {
CcInitializeCacheMap(
FileObject,
(PCC_FILE_SIZES)(&Fcb->Header.AllocationSize),
FALSE,
&Ext2Global->CacheManagerCallbacks,
Fcb );
CcSetReadAheadGranularity(
FileObject,
READ_AHEAD_GRANULARITY );
}
if (FlagOn(IrpContext->MinorFunction, IRP_MN_MDL)) {
CcPrepareMdlWrite(
FileObject,
&ByteOffset,
Length,
&Irp->MdlAddress,
&Irp->IoStatus );
Status = Irp->IoStatus.Status;
} else {
Buffer = Ext2GetUserBuffer(Irp);
if (Buffer == NULL) {
DbgBreak();
Status = STATUS_INVALID_USER_BUFFER;
__leave;
}
if (ByteOffset.QuadPart > Fcb->Header.ValidDataLength.QuadPart) {
/* let this irp wait, since it has to be synchronous */
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
rc = Ext2ZeroData(IrpContext, Vcb, FileObject,
&Fcb->Header.ValidDataLength, &ByteOffset);
if (!rc) {
Status = STATUS_PENDING;
DbgBreak();
__leave;
}
}
if (!CcCopyWrite(FileObject, &ByteOffset, Length, Ext2CanIWait(), Buffer)) {
if (Ext2CanIWait() ||
!CcCopyWrite(FileObject, &ByteOffset, Length, TRUE, Buffer)) {
Status = STATUS_PENDING;
DbgBreak();
__leave;
}
}
if (ByteOffset.QuadPart + Length > Fcb->Header.ValidDataLength.QuadPart ) {
if (Fcb->Header.FileSize.QuadPart < ByteOffset.QuadPart + Length) {
Fcb->Header.ValidDataLength.QuadPart = Fcb->Header.FileSize.QuadPart;
} else {
if (Fcb->Header.ValidDataLength.QuadPart < ByteOffset.QuadPart + Length)
Fcb->Header.ValidDataLength.QuadPart = ByteOffset.QuadPart + Length;
}
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
FileSizesChanged = TRUE;
}
Status = STATUS_SUCCESS;
}
if (NT_SUCCESS(Status)) {
Irp->IoStatus.Information = Length;
if (IsFlagOn(Vcb->Flags, VCB_FLOPPY_DISK)) {
DEBUG(DL_FLP, ("Ext2WriteFile is starting FlushingDpc...\n"));
Ext2StartFloppyFlushDpc(Vcb, Fcb, FileObject);
}
}
} else {
if (!PagingIo && !RecursiveWriteThrough && !IsLazyWriter(Fcb)) {
if (ByteOffset.QuadPart > Fcb->Header.ValidDataLength.QuadPart) {
/* let this irp wait, since it has to be synchronous */
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
rc = Ext2ZeroData(IrpContext, Vcb, FileObject,
&Fcb->Header.ValidDataLength,
&ByteOffset);
if (!rc) {
Status = STATUS_PENDING;
DbgBreak();
__leave;
}
}
}
Status = Ext2LockUserBuffer(
IrpContext->Irp,
Length,
IoReadAccess );
if (!NT_SUCCESS(Status)) {
__leave;
}
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = ReturnedLength;
Status = Ext2WriteInode(
IrpContext,
Vcb,
Fcb->Mcb,
(ULONGLONG)(ByteOffset.QuadPart),
NULL,
ReturnedLength,
TRUE,
&Length
);
Irp = IrpContext->Irp;
if (NT_SUCCESS(Status) && !RecursiveWriteThrough && !IsLazyWriter(Fcb)) {
if (ByteOffset.QuadPart + Length > Fcb->Header.ValidDataLength.QuadPart ) {
FileSizesChanged = TRUE;
if (Fcb->Header.FileSize.QuadPart < ByteOffset.QuadPart + Length) {
if (!PagingIo)
Fcb->Header.FileSize.QuadPart = ByteOffset.QuadPart + Length;
Fcb->Header.ValidDataLength.QuadPart = Fcb->Header.FileSize.QuadPart;
} else {
if (Fcb->Header.ValidDataLength.QuadPart < ByteOffset.QuadPart + Length)
Fcb->Header.ValidDataLength.QuadPart = ByteOffset.QuadPart + Length;
}
if (!PagingIo && CcIsFileCached(FileObject)) {
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
}
DEBUG(DL_IO, ("Ext2WriteFile: %wZ written FS: %I64xh FA: %I64xh BO: %I64xh LEN: %u\n",
&Fcb->Mcb->ShortName, Fcb->Header.FileSize.QuadPart,
Fcb->Header.AllocationSize.QuadPart, ByteOffset.QuadPart, Length));
}
}
}
if (FileSizesChanged) {
FileObject->Flags |= FO_FILE_SIZE_CHANGED | FO_FILE_MODIFIED;
Ext2NotifyReportChange( IrpContext, Vcb, Fcb->Mcb,
FILE_NOTIFY_CHANGE_SIZE,
FILE_ACTION_MODIFIED );
}
} __finally {
/*
* in case we got excpetions, we need revert MajorFunction
* back to IRP_MJ_WRITE. The reason we do this, is to tell
* Ext2ExpandFile to allocate unwritten extent or don't add
* new blocks for indirect files.
*/
if (IrpContext->MajorFunction > IRP_MJ_MAXIMUM_FUNCTION)
IrpContext->MajorFunction -= IRP_MJ_MAXIMUM_FUNCTION;
if (Irp) {
if (PagingIoResourceAcquired) {
ExReleaseResourceLite(&Fcb->PagingIoResource);
}
if (MainResourceAcquired) {
ExReleaseResourceLite(&Fcb->MainResource);
}
}
if (!OpPostIrp && !IrpContext->ExceptionInProgress) {
if (Irp) {
if (Status == STATUS_PENDING ||
Status == STATUS_CANT_WAIT ) {
if (!bDeferred) {
Status = Ext2QueueRequest(IrpContext);
}
} else {
if (NT_SUCCESS(Status) && !PagingIo) {
if (SynchronousIo) {
FileObject->CurrentByteOffset.QuadPart =
ByteOffset.QuadPart + Irp->IoStatus.Information;
}
SetFlag(FileObject->Flags, FO_FILE_MODIFIED);
SetLongFlag(Fcb->Flags, FCB_FILE_MODIFIED);
}
Ext2CompleteIrpContext(IrpContext, Status);
}
} else {
Ext2FreeIrpContext(IrpContext);
}
}
}
DEBUG(DL_IO, ("Ext2WriteFile: %wZ written at Offset=%I64xh Length=%xh PagingIo=%d Nocache=%d "
"RetLen=%xh VDL=%I64xh FileSize=%I64xh i_size=%I64xh Status=%xh\n",
&Fcb->Mcb->ShortName, ByteOffset, Length, PagingIo, Nocache, ReturnedLength,
Fcb->Header.ValidDataLength.QuadPart,Fcb->Header.FileSize.QuadPart,
Fcb->Inode->i_size, Status));
return Status;
}
ULONG
UdfLookupMetaVsnOfExtent (
IN PIRP_CONTEXT IrpContext,
IN PVCB Vcb,
IN USHORT Reference,
IN ULONG Lbn,
IN ULONG Len,
IN BOOLEAN ExactEnd
)
/*++
Routine Description:
This routine maps the input logical block extent on a given partition to
a starting virtual block in the metadata stream. If a mapping does not
exist, one will be created and the metadata stream extended.
Arguments:
Vcb - Vcb of logical volume
Reference - Partition reference to use in the mapping
Lbn - Logical block number
Len - Length of extent in bytes
ExactEnd - Indicates the extension policy if these blocks are not mapped.
Return Value:
ULONG virtual sector number
Raised status if the Lbn extent is split across multiple Vbn extents.
--*/
{
ULONG Vsn;
ULONG Psn;
ULONG SectorCount;
BOOLEAN Result;
BOOLEAN UnwindExtension = FALSE;
LONGLONG UnwindAllocationSize;
PFCB Fcb = NULL;
//
// Check inputs
//
ASSERT_IRP_CONTEXT( IrpContext );
ASSERT_VCB( Vcb );
//
// The extent must be an integral number of logical blocks in length.
//
if (Len == 0 || BlockOffset( Vcb, Len )) {
UdfRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR );
}
//
// Get the physical mapping of the extent. The Mcb package operates on ULONG/ULONG
// keys and values so we must render our 48bit address into 32. We can do this since
// this is a single surface implementation, and it is guaranteed that a surface cannot
// contain more than MAXULONG physical sectors.
//
Psn = UdfLookupPsnOfExtent( IrpContext,
Vcb,
Reference,
Lbn,
Len );
//
// Use try-finally for cleanup
//
try {
//
// We must safely establish a mapping and extend the metadata stream so that cached
// reads can occur on this new extent.
//
Fcb = Vcb->MetadataFcb;
UdfLockFcb( IrpContext, Fcb );
Result = UdfVmcbLbnToVbn( &Vcb->Vmcb,
Psn,
&Vsn,
&SectorCount );
if (Result) {
//
// If the mapping covers the extent, we can give this back.
//
if (BlocksFromSectors( Vcb, SectorCount ) >= BlocksFromBytes( Vcb, Len )) {
try_leave( NOTHING );
}
//
// It is a fatal error if the extent we are mapping is not wholly contained
// by an extent of Vsns in the Vmcb. This will indicate that some structure
// is trying to overlap another.
//
UdfRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR );
}
//
// Add the new mapping. We know that it is being added to the end of the stream.
//
UdfAddVmcbMapping( &Vcb->Vmcb,
Psn,
SectorsFromBytes( Vcb, Len ),
ExactEnd,
&Vsn,
&SectorCount );
UnwindAllocationSize = Fcb->AllocationSize.QuadPart;
UnwindExtension = TRUE;
Fcb->AllocationSize.QuadPart =
Fcb->FileSize.QuadPart =
Fcb->ValidDataLength.QuadPart = LlBytesFromSectors( Vcb, Vsn + SectorCount);
CcSetFileSizes( Fcb->FileObject, (PCC_FILE_SIZES) &Fcb->AllocationSize );
UnwindExtension = FALSE;
//
// We do not need to purge the cache maps since the Vmcb will always be
// page aligned, and thus any reads will have filled it with valid data.
//
} finally {
if (UnwindExtension) {
ULONG FirstZappedVsn;
//
// Strip off the additional mappings we made.
//
Fcb->AllocationSize.QuadPart =
Fcb->FileSize.QuadPart =
Fcb->ValidDataLength.QuadPart = UnwindAllocationSize;
FirstZappedVsn = SectorsFromBytes( Vcb, UnwindAllocationSize );
UdfRemoveVmcbMapping( &Vcb->Vmcb,
FirstZappedVsn,
Vsn + SectorCount - FirstZappedVsn );
CcSetFileSizes( Fcb->FileObject, (PCC_FILE_SIZES) &Fcb->AllocationSize );
}
if (Fcb) { UdfUnlockFcb( IrpContext, Fcb ); }
}
return Vsn;
}
NTSTATUS
Ext2Cleanup (IN PEXT2_IRP_CONTEXT IrpContext)
{
PDEVICE_OBJECT DeviceObject;
NTSTATUS Status = STATUS_SUCCESS;
PEXT2_VCB Vcb;
PFILE_OBJECT FileObject;
PEXT2_FCB Fcb;
PEXT2_CCB Ccb;
PIRP Irp;
PEXT2_MCB Mcb;
BOOLEAN VcbResourceAcquired = FALSE;
BOOLEAN FcbResourceAcquired = FALSE;
BOOLEAN FcbPagingIoResourceAcquired = FALSE;
__try {
ASSERT(IrpContext != NULL);
ASSERT((IrpContext->Identifier.Type == EXT2ICX) &&
(IrpContext->Identifier.Size == sizeof(EXT2_IRP_CONTEXT)));
DeviceObject = IrpContext->DeviceObject;
if (IsExt2FsDevice(DeviceObject)) {
Status = STATUS_SUCCESS;
__leave;
}
Irp = IrpContext->Irp;
Vcb = (PEXT2_VCB) DeviceObject->DeviceExtension;
ASSERT(Vcb != NULL);
ASSERT((Vcb->Identifier.Type == EXT2VCB) &&
(Vcb->Identifier.Size == sizeof(EXT2_VCB)));
if (!IsVcbInited(Vcb)) {
Status = STATUS_SUCCESS;
__leave;
}
FileObject = IrpContext->FileObject;
Fcb = (PEXT2_FCB) FileObject->FsContext;
if (!Fcb || (Fcb->Identifier.Type != EXT2VCB &&
Fcb->Identifier.Type != EXT2FCB)) {
Status = STATUS_SUCCESS;
__leave;
}
Mcb = Fcb->Mcb;
Ccb = (PEXT2_CCB) FileObject->FsContext2;
if (IsFlagOn(FileObject->Flags, FO_CLEANUP_COMPLETE)) {
Status = STATUS_SUCCESS;
__leave;
}
VcbResourceAcquired =
ExAcquireResourceExclusiveLite(
&Vcb->MainResource,
IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)
);
if (Fcb->Identifier.Type == EXT2VCB) {
if (IsFlagOn(Vcb->Flags, VCB_VOLUME_LOCKED) &&
(Vcb->LockFile == FileObject) ) {
ClearFlag(Vcb->Flags, VCB_VOLUME_LOCKED);
Vcb->LockFile = NULL;
Ext2ClearVpbFlag(Vcb->Vpb, VPB_LOCKED);
}
if (Ccb) {
Ext2DerefXcb(&Vcb->OpenHandleCount);
Ext2DerefXcb(&Vcb->OpenVolumeCount);
}
IoRemoveShareAccess(FileObject, &Vcb->ShareAccess);
Status = STATUS_SUCCESS;
__leave;
}
ASSERT((Fcb->Identifier.Type == EXT2FCB) &&
(Fcb->Identifier.Size == sizeof(EXT2_FCB)));
if (IsFlagOn(FileObject->Flags, FO_CLEANUP_COMPLETE)) {
if (IsFlagOn(FileObject->Flags, FO_FILE_MODIFIED) &&
IsFlagOn(Vcb->Flags, VCB_FLOPPY_DISK) &&
!IsFlagOn(Vcb->Flags, VCB_WRITE_PROTECTED) ) {
Status = Ext2FlushFile(IrpContext, Fcb, Ccb);
}
__leave;
}
if (Ccb == NULL) {
Status = STATUS_SUCCESS;
__leave;
}
if (IsDirectory(Fcb)) {
if (IsFlagOn(Ccb->Flags, CCB_DELETE_ON_CLOSE)) {
SetLongFlag(Fcb->Flags, FCB_DELETE_PENDING);
FsRtlNotifyFullChangeDirectory(
Vcb->NotifySync,
&Vcb->NotifyList,
Ccb,
NULL,
FALSE,
FALSE,
0,
NULL,
NULL,
NULL );
}
FsRtlNotifyCleanup(Vcb->NotifySync, &Vcb->NotifyList, Ccb);
}
ExReleaseResourceLite(&Vcb->MainResource);
VcbResourceAcquired = FALSE;
FcbResourceAcquired =
ExAcquireResourceExclusiveLite(
&Fcb->MainResource,
IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)
);
ASSERT((Ccb->Identifier.Type == EXT2CCB) &&
(Ccb->Identifier.Size == sizeof(EXT2_CCB)));
Ext2DerefXcb(&Vcb->OpenHandleCount);
Ext2DerefXcb(&Fcb->OpenHandleCount);
if (IsFlagOn(FileObject->Flags, FO_FILE_MODIFIED)) {
Fcb->Mcb->FileAttr |= FILE_ATTRIBUTE_ARCHIVE;
}
if (IsDirectory(Fcb)) {
ext3_release_dir(Fcb->Inode, &Ccb->filp);
} else {
if ( IsFlagOn(FileObject->Flags, FO_FILE_MODIFIED) &&
!IsFlagOn(Ccb->Flags, CCB_LAST_WRITE_UPDATED)) {
LARGE_INTEGER SysTime;
KeQuerySystemTime(&SysTime);
Fcb->Inode->i_atime =
Fcb->Inode->i_mtime = Ext2LinuxTime(SysTime);
Fcb->Mcb->LastAccessTime =
Fcb->Mcb->LastWriteTime = Ext2NtTime(Fcb->Inode->i_atime);
Ext2SaveInode(IrpContext, Vcb, Fcb->Inode);
Ext2NotifyReportChange(
IrpContext,
Vcb,
Fcb->Mcb,
FILE_NOTIFY_CHANGE_ATTRIBUTES |
FILE_NOTIFY_CHANGE_LAST_WRITE |
FILE_NOTIFY_CHANGE_LAST_ACCESS,
FILE_ACTION_MODIFIED );
}
FsRtlCheckOplock( &Fcb->Oplock,
Irp,
IrpContext,
NULL,
NULL );
Fcb->Header.IsFastIoPossible = Ext2IsFastIoPossible(Fcb);
if (!IsFlagOn(FileObject->Flags, FO_CACHE_SUPPORTED)) {
Fcb->NonCachedOpenCount--;
}
if (IsFlagOn(Ccb->Flags, CCB_DELETE_ON_CLOSE)) {
SetLongFlag(Fcb->Flags, FCB_DELETE_PENDING);
}
//
// Drop any byte range locks this process may have on the file.
//
FsRtlFastUnlockAll(
&Fcb->FileLockAnchor,
FileObject,
IoGetRequestorProcess(Irp),
NULL );
//
// If there are no byte range locks owned by other processes on the
// file the fast I/O read/write functions doesn't have to check for
// locks so we set IsFastIoPossible to FastIoIsPossible again.
//
if (!FsRtlGetNextFileLock(&Fcb->FileLockAnchor, TRUE)) {
if (Fcb->Header.IsFastIoPossible != FastIoIsPossible) {
#if EXT2_DEBUG
DEBUG(DL_INF, (": %-16.16s %-31s %wZ\n",
Ext2GetCurrentProcessName(),
"FastIoIsPossible",
&Fcb->Mcb->FullName
));
#endif
Fcb->Header.IsFastIoPossible = FastIoIsPossible;
}
}
if (Fcb->OpenHandleCount == 0 &&
(IsFlagOn(Fcb->Flags, FCB_ALLOC_IN_CREATE) ||
IsFlagOn(Fcb->Flags, FCB_ALLOC_IN_WRITE)) ) {
LARGE_INTEGER Size;
ExAcquireResourceExclusiveLite(&Fcb->PagingIoResource, TRUE);
FcbPagingIoResourceAcquired = TRUE;
Size.QuadPart = CEILING_ALIGNED(ULONGLONG,
(ULONGLONG)Fcb->Mcb->Inode.i_size,
(ULONGLONG)BLOCK_SIZE);
if (!IsFlagOn(Fcb->Flags, FCB_DELETE_PENDING)) {
Ext2TruncateFile(IrpContext, Vcb, Fcb->Mcb, &Size);
Fcb->Header.ValidDataLength.QuadPart =
Fcb->Header.FileSize.QuadPart = Fcb->Mcb->Inode.i_size;
Fcb->Header.AllocationSize = Size;
if (CcIsFileCached(FileObject)) {
CcSetFileSizes(FileObject,
(PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
}
}
ClearLongFlag(Fcb->Flags, FCB_ALLOC_IN_CREATE|FCB_ALLOC_IN_WRITE);
ExReleaseResourceLite(&Fcb->PagingIoResource);
FcbPagingIoResourceAcquired = FALSE;
}
}
if (IsFlagOn(Fcb->Flags, FCB_DELETE_PENDING)) {
if (Fcb->OpenHandleCount == 0 || (Mcb = Ccb->SymLink)) {
//
// Ext2DeleteFile will acquire these lock inside
//
if (FcbResourceAcquired) {
ExReleaseResourceLite(&Fcb->MainResource);
FcbResourceAcquired = FALSE;
}
//
// this file is to be deleted ...
//
if (Ccb->SymLink) {
Mcb = Ccb->SymLink;
FileObject->DeletePending = FALSE;
}
Status = Ext2DeleteFile(IrpContext, Vcb, Fcb, Mcb);
if (NT_SUCCESS(Status)) {
if (IsMcbDirectory(Mcb)) {
Ext2NotifyReportChange( IrpContext, Vcb, Mcb,
FILE_NOTIFY_CHANGE_DIR_NAME,
FILE_ACTION_REMOVED );
} else {
Ext2NotifyReportChange( IrpContext, Vcb, Mcb,
FILE_NOTIFY_CHANGE_FILE_NAME,
FILE_ACTION_REMOVED );
}
}
//
// re-acquire the main resource lock
//
FcbResourceAcquired =
ExAcquireResourceExclusiveLite(
&Fcb->MainResource,
IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)
);
if (CcIsFileCached(FileObject)) {
CcSetFileSizes(FileObject,
(PCC_FILE_SIZES)(&(Fcb->Header.AllocationSize)));
SetFlag(FileObject->Flags, FO_FILE_MODIFIED);
}
}
}
if (!IsDirectory(Fcb)) {
if ( IsFlagOn(FileObject->Flags, FO_CACHE_SUPPORTED) &&
(Fcb->NonCachedOpenCount + 1 == Fcb->ReferenceCount) &&
(Fcb->SectionObject.DataSectionObject != NULL)) {
if (!IsFlagOn(Vcb->Flags, VCB_READ_ONLY) &&
!IsFlagOn(Vcb->Flags, VCB_WRITE_PROTECTED) ) {
CcFlushCache(&Fcb->SectionObject, NULL, 0, NULL);
}
if (ExAcquireResourceExclusiveLite(&(Fcb->PagingIoResource), TRUE)) {
ExReleaseResourceLite(&(Fcb->PagingIoResource));
}
CcPurgeCacheSection( &Fcb->SectionObject,
NULL,
0,
FALSE );
}
CcUninitializeCacheMap(FileObject, NULL, NULL);
}
IoRemoveShareAccess(FileObject, &Fcb->ShareAccess);
DEBUG(DL_INF, ( "Ext2Cleanup: OpenCount=%u ReferCount=%u NonCahcedCount=%xh %wZ\n",
Fcb->OpenHandleCount, Fcb->ReferenceCount, Fcb->NonCachedOpenCount, &Fcb->Mcb->FullName));
Status = STATUS_SUCCESS;
if (FileObject) {
SetFlag(FileObject->Flags, FO_CLEANUP_COMPLETE);
}
} __finally {
if (FcbPagingIoResourceAcquired) {
ExReleaseResourceLite(&Fcb->PagingIoResource);
}
if (FcbResourceAcquired) {
ExReleaseResourceLite(&Fcb->MainResource);
}
if (VcbResourceAcquired) {
ExReleaseResourceLite(&Vcb->MainResource);
}
if (!IrpContext->ExceptionInProgress) {
if (Status == STATUS_PENDING) {
Ext2QueueRequest(IrpContext);
} else {
IrpContext->Irp->IoStatus.Status = Status;
Ext2CompleteIrpContext(IrpContext, Status);
}
}
}
return Status;
}
NTSTATUS
NdFatSecondaryCommonWrite (
IN PIRP_CONTEXT IrpContext,
IN PIRP Irp
)
{
NTSTATUS status;
PVOLUME_DEVICE_OBJECT volDo = CONTAINING_RECORD( IrpContext->Vcb, VOLUME_DEVICE_OBJECT, Vcb );
BOOLEAN secondarySessionResourceAcquired = FALSE;
PIO_STACK_LOCATION irpSp = IoGetCurrentIrpStackLocation( Irp );
PFILE_OBJECT fileObject = irpSp->FileObject;
struct Write write;
PSECONDARY_REQUEST secondaryRequest = NULL;
PNDFS_REQUEST_HEADER ndfsRequestHeader;
PNDFS_WINXP_REQUEST_HEADER ndfsWinxpRequestHeader;
PNDFS_WINXP_REPLY_HEADER ndfsWinxpReplytHeader;
LARGE_INTEGER timeOut;
TYPE_OF_OPEN typeOfOpen;
PVCB vcb;
PFCB fcb;
PCCB ccb;
BOOLEAN fcbAcquired = FALSE;
ASSERT( KeGetCurrentIrql() == PASSIVE_LEVEL );
typeOfOpen = FatDecodeFileObject( fileObject, &vcb, &fcb, &ccb );
ASSERT( typeOfOpen == UserFileOpen );
if (FlagOn(ccb->NdFatFlags, ND_FAT_CCB_FLAG_UNOPENED)) {
/*if (FlagOn( fcb->FcbState, FCB_STATE_FILE_DELETED )) {
ASSERT( FALSE );
FatRaiseStatus( IrpContext, STATUS_FILE_DELETED, NULL, NULL );
} else */{
ASSERT( FlagOn(ccb->NdFatFlags, ND_FAT_CCB_FLAG_CORRUPTED) );
return STATUS_FILE_CORRUPT_ERROR;
}
}
if (irpSp->Parameters.Write.ByteOffset.QuadPart == FILE_WRITE_TO_END_OF_FILE &&
irpSp->Parameters.Write.ByteOffset.HighPart == -1) {
write.ByteOffset = fcb->Header.FileSize;
} else {
write.ByteOffset = irpSp->Parameters.Write.ByteOffset;
}
write.Key = 0;
write.Length = irpSp->Parameters.Write.Length;
if (FlagOn(Irp->Flags, IRP_PAGING_IO)) {
ASSERT( (write.ByteOffset.QuadPart + write.Length) <=
((fcb->Header.AllocationSize.QuadPart + PAGE_SIZE - 1) & ~((LONGLONG) (PAGE_SIZE-1))) );
return STATUS_SUCCESS;
}
ASSERT( FlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
//ASSERT( !FlagOn( IrpContext->State, IRP_CONTEXT_STATE_LAZY_WRITE ) );
if ( (write.ByteOffset.QuadPart + write.Length) <= fcb->Header.FileSize.LowPart) {
return STATUS_SUCCESS;
}
if (!FlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)) {
return STATUS_PENDING;
ASSERT( FALSE );
DebugTrace2( 0, Dbg, ("Can't wait in NdFatSecondaryCommonWrite\n") );
status = FatFsdPostRequest( IrpContext, Irp );
DebugTrace2( -1, Dbg2, ("NdFatSecondaryCommonWrite: FatFsdPostRequest -> %08lx\n", status) );
return status;
}
DebugTrace2( 0, Dbg, ("write.ByteOffset.QuadPart + write.Length > fcb->Header.AllocationSize.QuadPart = %d "
"ExIsResourceAcquiredSharedLite(fcb->Header.Resource) = %d\n",
((write.ByteOffset.QuadPart + write.Length) > fcb->Header.AllocationSize.QuadPart),
ExIsResourceAcquiredSharedLite(fcb->Header.Resource)) );
if ((write.ByteOffset.QuadPart + write.Length) > fcb->Header.AllocationSize.QuadPart) {
FatAcquireExclusiveFcb( IrpContext, fcb );
fcbAcquired = TRUE;
}
try {
secondarySessionResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&volDo->Secondary->SessionResource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
if (FlagOn(volDo->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ) {
PrintIrp( Dbg, "SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED", NULL, IrpContext->OriginatingIrp );
FatRaiseStatus( IrpContext, STATUS_CANT_WAIT );
}
secondaryRequest = ALLOC_WINXP_SECONDARY_REQUEST( volDo->Secondary,
IRP_MJ_SET_INFORMATION,
volDo->Secondary->Thread.SessionContext.SecondaryMaxDataSize );
if (secondaryRequest == NULL) {
FatRaiseStatus( IrpContext, STATUS_INSUFFICIENT_RESOURCES );
}
ndfsRequestHeader = &secondaryRequest->NdfsRequestHeader;
INITIALIZE_NDFS_REQUEST_HEADER( ndfsRequestHeader, NDFS_COMMAND_EXECUTE, volDo->Secondary, IRP_MJ_SET_INFORMATION, 0 );
ndfsWinxpRequestHeader = (PNDFS_WINXP_REQUEST_HEADER)(ndfsRequestHeader+1);
ASSERT( ndfsWinxpRequestHeader == (PNDFS_WINXP_REQUEST_HEADER)secondaryRequest->NdfsRequestData );
//ndfsWinxpRequestHeader->IrpTag = (_U32)Irp;
ndfsWinxpRequestHeader->IrpMajorFunction = IRP_MJ_SET_INFORMATION;
ndfsWinxpRequestHeader->IrpMinorFunction = 0;
ndfsWinxpRequestHeader->FileHandle = ccb->PrimaryFileHandle;
ndfsWinxpRequestHeader->IrpFlags = 0;
ndfsWinxpRequestHeader->IrpSpFlags = 0;
ndfsWinxpRequestHeader->SetFile.FileHandle = 0;
ndfsWinxpRequestHeader->SetFile.Length = sizeof( FILE_END_OF_FILE_INFORMATION );
ndfsWinxpRequestHeader->SetFile.FileInformationClass = FileEndOfFileInformation;
ndfsWinxpRequestHeader->SetFile.EndOfFileInformation.EndOfFile = write.ByteOffset.QuadPart + write.Length;
secondaryRequest->RequestType = SECONDARY_REQ_SEND_MESSAGE;
QueueingSecondaryRequest( volDo->Secondary, secondaryRequest );
timeOut.QuadPart = -NDFAT_TIME_OUT;
status = KeWaitForSingleObject( &secondaryRequest->CompleteEvent, Executive, KernelMode, FALSE, &timeOut );
if (status != STATUS_SUCCESS) {
secondaryRequest = NULL;
status = STATUS_IO_DEVICE_ERROR;
leave;
}
KeClearEvent( &secondaryRequest->CompleteEvent );
if (secondaryRequest->ExecuteStatus != STATUS_SUCCESS) {
if (IrpContext->OriginatingIrp)
PrintIrp( Dbg2, "secondaryRequest->ExecuteStatus != STATUS_SUCCESS", NULL, IrpContext->OriginatingIrp );
DebugTrace2( 0, Dbg2, ("secondaryRequest->ExecuteStatus != STATUS_SUCCESS file = %s, line = %d\n", __FILE__, __LINE__) );
FatRaiseStatus( IrpContext, STATUS_CANT_WAIT );
}
ndfsWinxpReplytHeader = (PNDFS_WINXP_REPLY_HEADER)secondaryRequest->NdfsReplyData;
status = ndfsWinxpReplytHeader->Status;
Irp->IoStatus.Information = write.Length;
if (ndfsWinxpReplytHeader->Status != STATUS_SUCCESS) {
DebugTrace2( 0, Dbg2, ("NdNtfsSecondaryCommonWrite: ndfsWinxpReplytHeader->Status = %x\n", ndfsWinxpReplytHeader->Status) );
ASSERT( ndfsWinxpReplytHeader->Information == 0 );
} else
ASSERT( ndfsWinxpReplytHeader->FileInformationSet );
if (ndfsWinxpReplytHeader->FileInformationSet) {
PNDFS_FAT_MCB_ENTRY mcbEntry;
ULONG index;
BOOLEAN lookupResut;
VBO vcn;
LBO lcn;
//LBO startingLcn;
ULONG clusterCount;
//DbgPrint( "w ndfsWinxpReplytHeader->FileSize = %x\n", ndfsWinxpReplytHeader->FileSize );
if (ndfsWinxpReplytHeader->AllocationSize != fcb->Header.AllocationSize.QuadPart) {
ASSERT( ExIsResourceAcquiredExclusiveLite(fcb->Header.Resource) );
ASSERT( ndfsWinxpReplytHeader->AllocationSize > fcb->Header.AllocationSize.QuadPart );
mcbEntry = (PNDFS_FAT_MCB_ENTRY)( ndfsWinxpReplytHeader+1 );
for (index=0, vcn=0; index < ndfsWinxpReplytHeader->NumberOfMcbEntry; index++, mcbEntry++) {
lookupResut = FatLookupMcbEntry( vcb, &fcb->Mcb, vcn, &lcn, &clusterCount, NULL );
if (lookupResut == TRUE && vcn < fcb->Header.AllocationSize.QuadPart) {
ASSERT( lookupResut == TRUE );
//ASSERT( startingLcn == lcn );
ASSERT( vcn == mcbEntry->Vcn );
ASSERT( lcn == (((LBO)mcbEntry->Lcn) << vcb->AllocationSupport.LogOfBytesPerSector) );
ASSERT( clusterCount <= mcbEntry->ClusterCount );
if (clusterCount < mcbEntry->ClusterCount) {
FatAddMcbEntry ( vcb,
&fcb->Mcb,
(VBO)mcbEntry->Vcn,
((LBO)mcbEntry->Lcn) << vcb->AllocationSupport.LogOfBytesPerSector,
(ULONG)mcbEntry->ClusterCount );
lookupResut = FatLookupMcbEntry( vcb, &fcb->Mcb, vcn, &lcn, &clusterCount, NULL );
ASSERT( lookupResut == TRUE );
//ASSERT( startingLcn == lcn );
ASSERT( vcn == mcbEntry->Vcn );
ASSERT( lcn == (((LBO)mcbEntry->Lcn) << vcb->AllocationSupport.LogOfBytesPerSector) );
ASSERT( clusterCount == mcbEntry->ClusterCount );
}
} else {
ASSERT( lookupResut == FALSE || lcn == 0 );
FatAddMcbEntry ( vcb,
&fcb->Mcb,
(VBO)mcbEntry->Vcn,
((LBO)mcbEntry->Lcn) << vcb->AllocationSupport.LogOfBytesPerSector,
(ULONG)mcbEntry->ClusterCount );
}
vcn += (ULONG)mcbEntry->ClusterCount;
}
ASSERT( vcn == ndfsWinxpReplytHeader->AllocationSize );
fcb->Header.AllocationSize.QuadPart = ndfsWinxpReplytHeader->AllocationSize;
SetFlag( fcb->FcbState, FCB_STATE_TRUNCATE_ON_CLOSE );
if (CcIsFileCached(fileObject)) {
ASSERT( fileObject->SectionObjectPointer->SharedCacheMap != NULL );
CcSetFileSizes( fileObject, (PCC_FILE_SIZES)&fcb->Header.AllocationSize );
}
}
DebugTrace2(0, Dbg, ("write scb->Header.FileSize.LowPart = %I64x, scb->Header.ValidDataLength.QuadPart = %I64x\n",
fcb->Header.FileSize.LowPart, fcb->Header.ValidDataLength.QuadPart) );
}
#if DBG
{
BOOLEAN lookupResut;
VBO vcn;
LBO lcn;
//LCN startingLcn;
ULONG clusterCount;
vcn = 0;
while (1) {
lookupResut = FatLookupMcbEntry( vcb, &fcb->Mcb, vcn, &lcn, &clusterCount, NULL );
if (lookupResut == FALSE || lcn == 0)
break;
vcn += clusterCount;
}
ASSERT( vcn == fcb->Header.AllocationSize.QuadPart );
}
#endif
} finally {
if (secondarySessionResourceAcquired == TRUE)
SecondaryReleaseResourceLite( IrpContext, &volDo->Secondary->SessionResource );
if (fcbAcquired) {
FatReleaseFcb( IrpContext, fcb );
}
if (secondaryRequest)
DereferenceSecondaryRequest( secondaryRequest );
}
return status;
}
/*************************************************************************
*
* Function: UDFCommonCleanup()
*
* Description:
* The actual work is performed here. This routine may be invoked in one'
* of the two possible contexts:
* (a) in the context of a system worker thread
* (b) in the context of the original caller
*
* Expected Interrupt Level (for execution) :
*
* IRQL_PASSIVE_LEVEL
*
* Return Value: Does not matter!
*
*************************************************************************/
NTSTATUS
UDFCommonCleanup(
PtrUDFIrpContext PtrIrpContext,
PIRP Irp)
{
IO_STATUS_BLOCK IoStatus;
NTSTATUS RC = STATUS_SUCCESS;
NTSTATUS RC2;
PIO_STACK_LOCATION IrpSp = NULL;
PFILE_OBJECT FileObject = NULL;
PtrUDFFCB Fcb = NULL;
PtrUDFCCB Ccb = NULL;
PVCB Vcb = NULL;
PtrUDFNTRequiredFCB NtReqFcb = NULL;
ULONG lc = 0;
BOOLEAN AcquiredVcb = FALSE;
BOOLEAN AcquiredFCB = FALSE;
BOOLEAN AcquiredParentFCB = FALSE;
// BOOLEAN CompleteIrp = TRUE;
// BOOLEAN PostRequest = FALSE;
BOOLEAN ChangeTime = FALSE;
#ifdef UDF_DBG
BOOLEAN CanWait = FALSE;
#endif // UDF_DBG
BOOLEAN ForcedCleanUp = FALSE;
PUDF_FILE_INFO NextFileInfo = NULL;
#ifdef UDF_DBG
UNICODE_STRING CurName;
PDIR_INDEX_HDR DirNdx;
#endif // UDF_DBG
// PUDF_DATALOC_INFO Dloc;
TmPrint(("UDFCommonCleanup\n"));
// BrutePoint();
_SEH2_TRY {
// First, get a pointer to the current I/O stack location
IrpSp = IoGetCurrentIrpStackLocation(Irp);
if(!IrpSp) try_return(RC = STATUS_INVALID_PARAMETER);
FileObject = IrpSp->FileObject;
// Get the FCB and CCB pointers
Ccb = (PtrUDFCCB)(FileObject->FsContext2);
ASSERT(Ccb);
Fcb = Ccb->Fcb;
ASSERT(Fcb);
Vcb = (PVCB)(PtrIrpContext->TargetDeviceObject->DeviceExtension);
ASSERT(Vcb);
ASSERT(Vcb->NodeIdentifier.NodeType == UDF_NODE_TYPE_VCB);
// Vcb->VCBFlags |= UDF_VCB_SKIP_EJECT_CHECK;
#ifdef UDF_DBG
CanWait = (PtrIrpContext->IrpContextFlags & UDF_IRP_CONTEXT_CAN_BLOCK) ? TRUE : FALSE;
AdPrint((" %s\n", CanWait ? "Wt" : "nw"));
ASSERT(CanWait);
#endif // UDF_DBG
UDFAcquireResourceShared(&(Vcb->VCBResource), TRUE);
AcquiredVcb = TRUE;
// Steps we shall take at this point are:
// (a) Acquire the file (FCB) exclusively
// (b) Flush file data to disk
// (c) Talk to the FSRTL package (if we use it) about pending oplocks.
// (d) Notify the FSRTL package for use with pending notification IRPs
// (e) Unlock byte-range locks (if any were acquired by process)
// (f) Update time stamp values (e.g. fast-IO had been performed)
// (g) Inform the Cache Manager to uninitialize Cache Maps ...
// and other similar stuff.
// BrutePoint();
NtReqFcb = Fcb->NTRequiredFCB;
if (Fcb->NodeIdentifier.NodeType == UDF_NODE_TYPE_VCB) {
AdPrint(("Cleaning up Volume\n"));
AdPrint(("UDF: OpenHandleCount: %x\n",Fcb->OpenHandleCount));
UDFInterlockedDecrement((PLONG)&(Fcb->OpenHandleCount));
UDFInterlockedDecrement((PLONG)&(Vcb->VCBHandleCount));
if(FileObject->Flags & FO_CACHE_SUPPORTED) {
// we've cached close
UDFInterlockedDecrement((PLONG)&(Fcb->CachedOpenHandleCount));
}
ASSERT(Fcb->OpenHandleCount <= (Fcb->ReferenceCount-1));
// If this handle had write access, and actually wrote something,
// flush the device buffers, and then set the verify bit now
// just to be safe (in case there is no dismount).
if( FileObject->WriteAccess &&
(FileObject->Flags & FO_FILE_MODIFIED)) {
Vcb->Vpb->RealDevice->Flags |= DO_VERIFY_VOLUME;
}
// User may decide to close locked volume without call to unlock proc
// So, handle this situation properly & unlock it now...
if (FileObject == Vcb->VolumeLockFileObject) {
Vcb->VolumeLockFileObject = NULL;
Vcb->VolumeLockPID = -1;
Vcb->VCBFlags &= ~UDF_VCB_FLAGS_VOLUME_LOCKED;
Vcb->Vpb->Flags &= ~VPB_LOCKED;
UDFNotifyVolumeEvent(FileObject, FSRTL_VOLUME_UNLOCK);
}
MmPrint((" CcUninitializeCacheMap()\n"));
CcUninitializeCacheMap(FileObject, NULL, NULL);
// reset device
if(!(Vcb->VCBFlags & UDF_VCB_FLAGS_VOLUME_MOUNTED) &&
(Vcb->VCBFlags & UDF_VCB_FLAGS_OUR_DEVICE_DRIVER)) {
// this call doesn't modify data buffer
// it just requires its presence
UDFResetDeviceDriver(Vcb, Vcb->TargetDeviceObject, TRUE);
}
// We must clean up the share access at this time, since we may not
// get a Close call for awhile if the file was mapped through this
// File Object.
IoRemoveShareAccess( FileObject, &(NtReqFcb->FCBShareAccess) );
try_return(RC = STATUS_SUCCESS);
}
// BrutePoint();
#ifdef UDF_DBG
DirNdx = UDFGetDirIndexByFileInfo(Fcb->FileInfo);
if(DirNdx) {
CurName.Buffer = UDFDirIndex(DirNdx, Fcb->FileInfo->Index)->FName.Buffer;
if(CurName.Buffer) {
AdPrint(("Cleaning up file: %ws %8.8x\n", CurName.Buffer, FileObject));
} else {
AdPrint(("Cleaning up file: ??? \n"));
}
}
#endif //UDF_DBG
AdPrint(("UDF: OpenHandleCount: %x\n",Fcb->OpenHandleCount));
// Acquire parent object
if(Fcb->FileInfo->ParentFile) {
UDF_CHECK_PAGING_IO_RESOURCE(Fcb->FileInfo->ParentFile->Fcb->NTRequiredFCB);
UDFAcquireResourceExclusive(&(Fcb->FileInfo->ParentFile->Fcb->NTRequiredFCB->MainResource),TRUE);
} else {
UDFAcquireResourceShared(&(Vcb->VCBResource),TRUE);
}
AcquiredParentFCB = TRUE;
// Acquire current object
UDF_CHECK_PAGING_IO_RESOURCE(NtReqFcb);
UDFAcquireResourceExclusive(&(NtReqFcb->MainResource),TRUE);
AcquiredFCB = TRUE;
// dereference object
UDFInterlockedDecrement((PLONG)&(Fcb->OpenHandleCount));
UDFInterlockedDecrement((PLONG)&(Vcb->VCBHandleCount));
if(FileObject->Flags & FO_CACHE_SUPPORTED) {
// we've cached close
UDFInterlockedDecrement((PLONG)&(Fcb->CachedOpenHandleCount));
}
ASSERT(Fcb->OpenHandleCount <= (Fcb->ReferenceCount-1));
// check if Ccb being cleaned up has DeleteOnClose flag set
#ifndef UDF_READ_ONLY_BUILD
if(Ccb->CCBFlags & UDF_CCB_DELETE_ON_CLOSE) {
AdPrint((" DeleteOnClose\n"));
// Ok, now we'll become 'delete on close'...
ASSERT(!(Fcb->FCBFlags & UDF_FCB_ROOT_DIRECTORY));
Fcb->FCBFlags |= UDF_FCB_DELETE_ON_CLOSE;
FileObject->DeletePending = TRUE;
// Report this to the dir notify package for a directory.
if(Fcb->FCBFlags & UDF_FCB_DIRECTORY) {
FsRtlNotifyFullChangeDirectory( Vcb->NotifyIRPMutex, &(Vcb->NextNotifyIRP),
(PVOID)Ccb, NULL, FALSE, FALSE,
0, NULL, NULL, NULL );
}
}
#endif //UDF_READ_ONLY_BUILD
if(!(Fcb->FCBFlags & UDF_FCB_DIRECTORY)) {
// Unlock all outstanding file locks.
FsRtlFastUnlockAll(&(NtReqFcb->FileLock),
FileObject,
IoGetRequestorProcess(Irp),
NULL);
}
// get Link count
lc = UDFGetFileLinkCount(Fcb->FileInfo);
#ifndef UDF_READ_ONLY_BUILD
if( (Fcb->FCBFlags & UDF_FCB_DELETE_ON_CLOSE) &&
!(Fcb->OpenHandleCount)) {
// This can be useful for Streams, those were brutally deleted
// (together with parent object)
ASSERT(!(Fcb->FCBFlags & UDF_FCB_ROOT_DIRECTORY));
FileObject->DeletePending = TRUE;
// we should mark all streams of the file being deleted
// for deletion too, if there are no more Links to
// main data stream
if((lc <= 1) &&
!UDFIsSDirDeleted(Fcb->FileInfo->Dloc->SDirInfo)) {
RC = UDFMarkStreamsForDeletion(Vcb, Fcb, TRUE); // Delete
}
// we can release these resources 'cause UDF_FCB_DELETE_ON_CLOSE
// flag is already set & the file can't be opened
UDF_CHECK_PAGING_IO_RESOURCE(NtReqFcb);
UDFReleaseResource(&(NtReqFcb->MainResource));
AcquiredFCB = FALSE;
if(Fcb->FileInfo->ParentFile) {
UDF_CHECK_PAGING_IO_RESOURCE(Fcb->ParentFcb->NTRequiredFCB);
UDFReleaseResource(&(Fcb->ParentFcb->NTRequiredFCB->MainResource));
} else {
UDFReleaseResource(&(Vcb->VCBResource));
}
AcquiredParentFCB = FALSE;
UDFReleaseResource(&(Vcb->VCBResource));
AcquiredVcb = FALSE;
// Make system to issue last Close request
// for our Target ...
UDFRemoveFromSystemDelayedQueue(Fcb);
#ifdef UDF_DELAYED_CLOSE
// remove file from our DelayedClose queue
UDFRemoveFromDelayedQueue(Fcb);
ASSERT(!Fcb->IrpContextLite);
#endif //UDF_DELAYED_CLOSE
UDFAcquireResourceShared(&(Vcb->VCBResource), TRUE);
AcquiredVcb = TRUE;
if(Fcb->FileInfo->ParentFile) {
UDF_CHECK_PAGING_IO_RESOURCE(Fcb->ParentFcb->NTRequiredFCB);
UDFAcquireResourceExclusive(&(Fcb->ParentFcb->NTRequiredFCB->MainResource),TRUE);
} else {
UDFAcquireResourceShared(&(Vcb->VCBResource),TRUE);
}
AcquiredParentFCB = TRUE;
UDF_CHECK_PAGING_IO_RESOURCE(NtReqFcb);
UDFAcquireResourceExclusive(&(NtReqFcb->MainResource),TRUE);
AcquiredFCB = TRUE;
// we should set file sizes to zero if there are no more
// links to this file
if(lc <= 1) {
// Synchronize here with paging IO
UDFAcquireResourceExclusive(&(NtReqFcb->PagingIoResource),TRUE);
// set file size to zero (for system cache manager)
// NtReqFcb->CommonFCBHeader.ValidDataLength.QuadPart =
NtReqFcb->CommonFCBHeader.FileSize.QuadPart =
NtReqFcb->CommonFCBHeader.ValidDataLength.QuadPart = 0;
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)&(NtReqFcb->CommonFCBHeader.AllocationSize));
UDFReleaseResource(&(NtReqFcb->PagingIoResource));
}
}
#endif //UDF_READ_ONLY_BUILD
#ifdef UDF_DELAYED_CLOSE
if ((Fcb->ReferenceCount == 1) &&
/*(Fcb->NodeIdentifier.NodeType != UDF_NODE_TYPE_VCB) &&*/ // see above
(!(Fcb->FCBFlags & UDF_FCB_DELETE_ON_CLOSE)) ) {
Fcb->FCBFlags |= UDF_FCB_DELAY_CLOSE;
}
#endif //UDF_DELAYED_CLOSE
NextFileInfo = Fcb->FileInfo;
#ifndef UDF_READ_ONLY_BUILD
// do we need to delete it now ?
if( (Fcb->FCBFlags & UDF_FCB_DELETE_ON_CLOSE) &&
!(Fcb->OpenHandleCount)) {
// can we do it ?
if(Fcb->FCBFlags & UDF_FCB_DIRECTORY) {
ASSERT(!(Fcb->FCBFlags & UDF_FCB_ROOT_DIRECTORY));
if(!UDFIsDirEmpty__(NextFileInfo)) {
// forget about it
Fcb->FCBFlags &= ~UDF_FCB_DELETE_ON_CLOSE;
goto DiscardDelete;
}
} else
if (lc <= 1) {
// Synchronize here with paging IO
BOOLEAN AcquiredPagingIo;
AcquiredPagingIo = UDFAcquireResourceExclusiveWithCheck(&(NtReqFcb->PagingIoResource));
// set file size to zero (for UdfInfo package)
// we should not do this for directories and linked files
UDFResizeFile__(Vcb, NextFileInfo, 0);
if(AcquiredPagingIo) {
UDFReleaseResource(&(NtReqFcb->PagingIoResource));
}
}
// mark parent object for deletion if requested
if((Fcb->FCBFlags & UDF_FCB_DELETE_PARENT) &&
Fcb->ParentFcb) {
ASSERT(!(Fcb->ParentFcb->FCBFlags & UDF_FCB_ROOT_DIRECTORY));
Fcb->ParentFcb->FCBFlags |= UDF_FCB_DELETE_ON_CLOSE;
}
// flush file. It is required by UDFUnlinkFile__()
RC = UDFFlushFile__(Vcb, NextFileInfo);
if(!NT_SUCCESS(RC)) {
AdPrint(("Error flushing file !!!\n"));
}
// try to unlink
if((RC = UDFUnlinkFile__(Vcb, NextFileInfo, TRUE)) == STATUS_CANNOT_DELETE) {
// If we can't delete file with Streams due to references,
// mark SDir & Streams
// for Deletion. We shall also set DELETE_PARENT flag to
// force Deletion of the current file later... when curently
// opened Streams would be cleaned up.
// WARNING! We should keep SDir & Streams if there is a
// link to this file
if(NextFileInfo->Dloc &&
NextFileInfo->Dloc->SDirInfo &&
NextFileInfo->Dloc->SDirInfo->Fcb) {
BrutePoint();
if(!UDFIsSDirDeleted(NextFileInfo->Dloc->SDirInfo)) {
// RC = UDFMarkStreamsForDeletion(Vcb, Fcb, TRUE); // Delete
//#ifdef UDF_ALLOW_PRETEND_DELETED
UDFPretendFileDeleted__(Vcb, Fcb->FileInfo);
//#endif //UDF_ALLOW_PRETEND_DELETED
}
goto NotifyDelete;
} else {
// Getting here means that we can't delete file because of
// References/PemissionsDenied/Smth.Else,
// but not Linked+OpenedStream
BrutePoint();
// RC = STATUS_SUCCESS;
goto DiscardDelete_1;
}
} else {
DiscardDelete_1:
// We have got an ugly ERROR, or
// file is deleted, so forget about it
ASSERT(!(Fcb->FCBFlags & UDF_FCB_ROOT_DIRECTORY));
ForcedCleanUp = TRUE;
if(NT_SUCCESS(RC))
Fcb->FCBFlags &= ~UDF_FCB_DELETE_ON_CLOSE;
Fcb->FCBFlags |= UDF_FCB_DELETED;
RC = STATUS_SUCCESS;
}
NotifyDelete:
// We should prevent SetEOF operations on completly
// deleted data streams
if(lc < 1) {
NtReqFcb->NtReqFCBFlags |= UDF_NTREQ_FCB_DELETED;
}
// Report that we have removed an entry.
if(UDFIsAStream(NextFileInfo)) {
UDFNotifyFullReportChange( Vcb, NextFileInfo,
FILE_NOTIFY_CHANGE_STREAM_NAME,
FILE_ACTION_REMOVED_STREAM);
} else {
UDFNotifyFullReportChange( Vcb, NextFileInfo,
UDFIsADirectory(NextFileInfo) ? FILE_NOTIFY_CHANGE_DIR_NAME : FILE_NOTIFY_CHANGE_FILE_NAME,
FILE_ACTION_REMOVED);
}
} else
if(Fcb->FCBFlags & UDF_FCB_DELETE_ON_CLOSE) {
DiscardDelete:
UDFNotifyFullReportChange( Vcb, NextFileInfo,
((Ccb->CCBFlags & UDF_CCB_ACCESS_TIME_SET) ? FILE_NOTIFY_CHANGE_LAST_ACCESS : 0) |
((Ccb->CCBFlags & UDF_CCB_WRITE_TIME_SET) ? (FILE_NOTIFY_CHANGE_ATTRIBUTES | FILE_NOTIFY_CHANGE_LAST_WRITE) : 0) |
0,
UDFIsAStream(NextFileInfo) ? FILE_ACTION_MODIFIED_STREAM : FILE_ACTION_MODIFIED);
}
#endif //UDF_READ_ONLY_BUILD
if(Fcb->FCBFlags & UDF_FCB_DIRECTORY) {
// Report to the dir notify package for a directory.
FsRtlNotifyCleanup( Vcb->NotifyIRPMutex, &(Vcb->NextNotifyIRP), (PVOID)Ccb );
}
// we can't purge Cache when more than one link exists
if(lc > 1) {
ForcedCleanUp = FALSE;
}
if ( (FileObject->Flags & FO_CACHE_SUPPORTED) &&
(NtReqFcb->SectionObject.DataSectionObject) ) {
BOOLEAN LastNonCached = (!Fcb->CachedOpenHandleCount &&
Fcb->OpenHandleCount);
// If this was the last cached open, and there are open
// non-cached handles, attempt a flush and purge operation
// to avoid cache coherency overhead from these non-cached
// handles later. We ignore any I/O errors from the flush.
// We shall not flush deleted files
RC = STATUS_SUCCESS;
if( LastNonCached
||
(!Fcb->OpenHandleCount &&
!ForcedCleanUp) ) {
#ifndef UDF_READ_ONLY_BUILD
LONGLONG OldFileSize, NewFileSize;
if( (OldFileSize = NtReqFcb->CommonFCBHeader.ValidDataLength.QuadPart) <
(NewFileSize = NtReqFcb->CommonFCBHeader.FileSize.QuadPart)) {
/* UDFZeroDataEx(NtReqFcb,
OldFileSize,
NewFileSize - OldFileSize,
TRUE, Vcb, FileObject);*/
NtReqFcb->CommonFCBHeader.ValidDataLength.QuadPart = NewFileSize;
}
#endif //UDF_READ_ONLY_BUILD
MmPrint((" CcFlushCache()\n"));
CcFlushCache( &(NtReqFcb->SectionObject), NULL, 0, &IoStatus );
if(!NT_SUCCESS(IoStatus.Status)) {
MmPrint((" CcFlushCache() error: %x\n", IoStatus.Status));
RC = IoStatus.Status;
}
}
// If file is deleted or it is last cached open, but there are
// some non-cached handles we should purge cache section
if(ForcedCleanUp || LastNonCached) {
if(NtReqFcb->SectionObject.DataSectionObject) {
MmPrint((" CcPurgeCacheSection()\n"));
CcPurgeCacheSection( &(NtReqFcb->SectionObject), NULL, 0, FALSE );
}
/* MmPrint((" CcPurgeCacheSection()\n"));
CcPurgeCacheSection( &(NtReqFcb->SectionObject), NULL, 0, FALSE );*/
}
// we needn't Flush here. It will be done in UDFCloseFileInfoChain()
}
#ifndef UDF_READ_ONLY_BUILD
// Update FileTimes & Attrs
if(!(Vcb->VCBFlags & UDF_VCB_FLAGS_VOLUME_READ_ONLY) &&
!(Fcb->FCBFlags & (UDF_FCB_DELETE_ON_CLOSE |
UDF_FCB_DELETED /*|
UDF_FCB_DIRECTORY |
UDF_FCB_READ_ONLY*/)) &&
!UDFIsAStreamDir(NextFileInfo)) {
LONGLONG NtTime;
LONGLONG ASize;
KeQuerySystemTime((PLARGE_INTEGER)&NtTime);
// Check if we should set ARCHIVE bit & LastWriteTime
if(FileObject->Flags & FO_FILE_MODIFIED) {
ULONG Attr;
PDIR_INDEX_ITEM DirNdx;
DirNdx = UDFDirIndex(UDFGetDirIndexByFileInfo(NextFileInfo), NextFileInfo->Index);
ASSERT(DirNdx);
// Archive bit
if(!(Ccb->CCBFlags & UDF_CCB_ATTRIBUTES_SET) &&
(Vcb->CompatFlags & UDF_VCB_IC_UPDATE_ARCH_BIT)) {
Attr = UDFAttributesToNT(DirNdx, NextFileInfo->Dloc->FileEntry);
if(!(Attr & FILE_ATTRIBUTE_ARCHIVE))
UDFAttributesToUDF(DirNdx, NextFileInfo->Dloc->FileEntry, Attr | FILE_ATTRIBUTE_ARCHIVE);
}
// WriteTime
if(!(Ccb->CCBFlags & UDF_CCB_WRITE_TIME_SET) &&
(Vcb->CompatFlags & UDF_VCB_IC_UPDATE_MODIFY_TIME)) {
UDFSetFileXTime(NextFileInfo, NULL, &NtTime, NULL, &NtTime);
NtReqFcb->LastWriteTime.QuadPart =
NtReqFcb->LastAccessTime.QuadPart = NtTime;
ChangeTime = TRUE;
}
}
if(!(Fcb->FCBFlags & UDF_FCB_DIRECTORY)) {
// Update sizes in DirIndex
if(!Fcb->OpenHandleCount) {
ASize = UDFGetFileAllocationSize(Vcb, NextFileInfo);
// NtReqFcb->CommonFCBHeader.AllocationSize.QuadPart;
UDFSetFileSizeInDirNdx(Vcb, NextFileInfo, &ASize);
} else
if(FileObject->Flags & FO_FILE_SIZE_CHANGED) {
ASize = //UDFGetFileAllocationSize(Vcb, NextFileInfo);
NtReqFcb->CommonFCBHeader.AllocationSize.QuadPart;
UDFSetFileSizeInDirNdx(Vcb, NextFileInfo, &ASize);
}
}
// AccessTime
if((FileObject->Flags & FO_FILE_FAST_IO_READ) &&
!(Ccb->CCBFlags & UDF_CCB_ACCESS_TIME_SET) &&
(Vcb->CompatFlags & UDF_VCB_IC_UPDATE_ACCESS_TIME)) {
UDFSetFileXTime(NextFileInfo, NULL, &NtTime, NULL, NULL);
NtReqFcb->LastAccessTime.QuadPart = NtTime;
// ChangeTime = TRUE;
}
// ChangeTime (AttrTime)
if(!(Ccb->CCBFlags & UDF_CCB_MODIFY_TIME_SET) &&
(Vcb->CompatFlags & UDF_VCB_IC_UPDATE_ATTR_TIME) &&
(ChangeTime || (Ccb->CCBFlags & (UDF_CCB_ATTRIBUTES_SET |
UDF_CCB_CREATE_TIME_SET |
UDF_CCB_ACCESS_TIME_SET |
UDF_CCB_WRITE_TIME_SET))) ) {
UDFSetFileXTime(NextFileInfo, NULL, NULL, &NtTime, NULL);
NtReqFcb->ChangeTime.QuadPart = NtTime;
}
}
#endif //UDF_READ_ONLY_BUILD
if(!(Fcb->FCBFlags & UDF_FCB_DIRECTORY) &&
ForcedCleanUp) {
// flush system cache
MmPrint((" CcUninitializeCacheMap()\n"));
CcUninitializeCacheMap(FileObject, &(UDFGlobalData.UDFLargeZero), NULL);
} else {
MmPrint((" CcUninitializeCacheMap()\n"));
CcUninitializeCacheMap(FileObject, NULL, NULL);
}
// release resources now.
// they'll be acquired in UDFCloseFileInfoChain()
UDF_CHECK_PAGING_IO_RESOURCE(NtReqFcb);
UDFReleaseResource(&(NtReqFcb->MainResource));
AcquiredFCB = FALSE;
if(Fcb->FileInfo->ParentFile) {
UDF_CHECK_PAGING_IO_RESOURCE(Fcb->FileInfo->ParentFile->Fcb->NTRequiredFCB);
UDFReleaseResource(&(Fcb->FileInfo->ParentFile->Fcb->NTRequiredFCB->MainResource));
} else {
UDFReleaseResource(&(Vcb->VCBResource));
}
AcquiredParentFCB = FALSE;
// close the chain
ASSERT(AcquiredVcb);
RC2 = UDFCloseFileInfoChain(Vcb, NextFileInfo, Ccb->TreeLength, TRUE);
if(NT_SUCCESS(RC))
RC = RC2;
Ccb->CCBFlags |= UDF_CCB_CLEANED;
// We must clean up the share access at this time, since we may not
// get a Close call for awhile if the file was mapped through this
// File Object.
IoRemoveShareAccess( FileObject, &(NtReqFcb->FCBShareAccess) );
NtReqFcb->CommonFCBHeader.IsFastIoPossible = UDFIsFastIoPossible(Fcb);
FileObject->Flags |= FO_CLEANUP_COMPLETE;
try_exit: NOTHING;
} _SEH2_FINALLY {
if(AcquiredFCB) {
UDF_CHECK_PAGING_IO_RESOURCE(NtReqFcb);
UDFReleaseResource(&(NtReqFcb->MainResource));
}
if(AcquiredParentFCB) {
if(Fcb->FileInfo->ParentFile) {
UDF_CHECK_PAGING_IO_RESOURCE(Fcb->FileInfo->ParentFile->Fcb->NTRequiredFCB);
UDFReleaseResource(&(Fcb->FileInfo->ParentFile->Fcb->NTRequiredFCB->MainResource));
} else {
UDFReleaseResource(&(Vcb->VCBResource));
}
}
if(AcquiredVcb) {
UDFReleaseResource(&(Vcb->VCBResource));
AcquiredVcb = FALSE;
}
if (!_SEH2_AbnormalTermination()) {
// complete the IRP
Irp->IoStatus.Status = RC;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_DISK_INCREMENT);
// Free up the Irp Context
UDFReleaseIrpContext(PtrIrpContext);
}
} _SEH2_END; // end of "__finally" processing
return(RC);
} // end UDFCommonCleanup()
VOID
FatPrepareWriteDirectoryFile (
IN PIRP_CONTEXT IrpContext,
IN PDCB Dcb,
IN VBO StartingVbo,
IN ULONG ByteCount,
OUT PBCB *Bcb,
OUT PVOID *Buffer,
IN BOOLEAN Zero,
IN BOOLEAN Reversible,
OUT PNTSTATUS Status
)
/*++
Routine Description:
This routine first looks to see if the specified range of sectors
is already in the cache. If so, it increments the BCB PinCount,
sets the BCB dirty, and returns TRUE with the location of the sectors.
The IrpContext->Flags .. Wait == TRUE/FALSE actions of this routine are identical to
FatPrepareWriteVolumeFile() above.
Arguments:
Dcb - Pointer to the DCB for the directory
StartingVbo - The virtual offset of the first byte to be written
ByteCount - Number of bytes to be written
Bcb - Returns a pointer to the BCB which is valid until unpinned
Buffer - Returns a pointer to the sectors, which is valid until unpinned
Zero - Supplies TRUE if the specified range of bytes should be zeroed
Reversible - Supplies TRUE if the specified range of modification should
be repinned so that the operation can be reversed in a controlled
fashion if errors are encountered.
Status - Returns the status of the operation.
--*/
{
LARGE_INTEGER Vbo;
ULONG InitialAllocation;
BOOLEAN UnwindWeAllocatedDiskSpace = FALSE;
ULONG ClusterSize;
PVOID LocalBuffer;
PAGED_CODE();
DebugTrace(+1, Dbg, "FatPrepareWriteDirectoryFile\n", 0);
DebugTrace( 0, Dbg, "Dcb = %08lx\n", Dcb);
DebugTrace( 0, Dbg, "StartingVbo = %08lx\n", (ULONG)StartingVbo);
DebugTrace( 0, Dbg, "ByteCount = %08lx\n", ByteCount);
DebugTrace( 0, Dbg, "Zero = %08lx\n", Zero);
*Bcb = NULL;
*Buffer = NULL;
//
// If we need to create a directory file and initialize the
// cachemap, do so.
//
FatOpenDirectoryFile( IrpContext, Dcb );
//
// If the transfer is beyond the allocation size we need to
// extend the directory's allocation. The call to
// AddFileAllocation will raise a condition if
// it runs out of disk space. Note that the root directory
// cannot be extended.
//
Vbo.QuadPart = StartingVbo;
try {
if (StartingVbo + ByteCount > Dcb->Header.AllocationSize.LowPart) {
if (NodeType(Dcb) == FAT_NTC_ROOT_DCB &&
!FatIsFat32(Dcb->Vcb)) {
FatRaiseStatus( IrpContext, STATUS_DISK_FULL );
}
DebugTrace(0, Dbg, "Try extending normal directory\n", 0);
InitialAllocation = Dcb->Header.AllocationSize.LowPart;
FatAddFileAllocation( IrpContext,
Dcb,
Dcb->Specific.Dcb.DirectoryFile,
StartingVbo + ByteCount );
UnwindWeAllocatedDiskSpace = TRUE;
//
// Inform the cache manager of the new allocation
//
Dcb->Header.FileSize.LowPart =
Dcb->Header.AllocationSize.LowPart;
CcSetFileSizes( Dcb->Specific.Dcb.DirectoryFile,
(PCC_FILE_SIZES)&Dcb->Header.AllocationSize );
//
// Set up the Bitmap buffer if it is not big enough already
//
FatCheckFreeDirentBitmap( IrpContext, Dcb );
//
// The newly allocated clusters should be zeroed starting at
// the previous allocation size
//
Zero = TRUE;
Vbo.QuadPart = InitialAllocation;
ByteCount = Dcb->Header.AllocationSize.LowPart - InitialAllocation;
}
//
// Call the Cache Manager to attempt the transfer, going one cluster
// at a time to avoid pinning across a page boundary.
//
ClusterSize =
1 << Dcb->Vcb->AllocationSupport.LogOfBytesPerCluster;
while (ByteCount > 0) {
ULONG BytesToPin;
*Bcb = NULL;
if (ByteCount > ClusterSize) {
BytesToPin = ClusterSize;
} else {
BytesToPin = ByteCount;
}
ASSERT( (Vbo.QuadPart / ClusterSize) ==
(Vbo.QuadPart + BytesToPin - 1)/ClusterSize );
if (!CcPinRead( Dcb->Specific.Dcb.DirectoryFile,
&Vbo,
BytesToPin,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT),
Bcb,
&LocalBuffer )) {
//
// Could not read the data without waiting (cache miss).
//
FatRaiseStatus( IrpContext, STATUS_CANT_WAIT );
}
//
// Update our caller with the beginning of their request.
//
if (*Buffer == NULL) {
*Buffer = LocalBuffer;
}
DbgDoit( IrpContext->PinCount += 1 )
if (Zero) {
//
// We set this guy dirty right now so that we can raise CANT_WAIT when
// it needs to be done. It'd be beautiful if we could noop the read IO
// since we know we don't care about it.
//
RtlZeroMemory( LocalBuffer, BytesToPin );
CcSetDirtyPinnedData( *Bcb, NULL );
}
ByteCount -= BytesToPin;
Vbo.QuadPart += BytesToPin;
if (ByteCount > 0) {
FatUnpinBcb( IrpContext, *Bcb );
}
}
//
// This lets us get the data pinned until we complete the request
// and writes the dirty bit through to the disk.
//
FatSetDirtyBcb( IrpContext, *Bcb, Dcb->Vcb, Reversible );
*Status = STATUS_SUCCESS;
} finally {
DebugUnwind( FatPrepareWriteDirectoryFile );
if (AbnormalTermination()) {
//
// These steps are carefully arranged - FatTruncateFileAllocation can raise.
// Make sure we unpin the buffer. If FTFA raises, the effect should be benign.
//
FatUnpinBcb(IrpContext, *Bcb);
if (UnwindWeAllocatedDiskSpace == TRUE) {
//
// Inform the cache manager of the change.
//
FatTruncateFileAllocation( IrpContext, Dcb, InitialAllocation );
Dcb->Header.FileSize.LowPart =
Dcb->Header.AllocationSize.LowPart;
CcSetFileSizes( Dcb->Specific.Dcb.DirectoryFile,
(PCC_FILE_SIZES)&Dcb->Header.AllocationSize );
}
}
DebugTrace(-1, Dbg, "FatPrepareWriteDirectoryFile -> (VOID), *Bcb = %08lx\n", *Bcb);
}
return;
}
/* Last handle to a file object is closed */
NTSTATUS
NTAPI
FatiCleanup(PFAT_IRP_CONTEXT IrpContext, PIRP Irp)
{
PIO_STACK_LOCATION IrpSp;
PFILE_OBJECT FileObject;
TYPE_OF_OPEN TypeOfOpen;
PSHARE_ACCESS ShareAccess;
BOOLEAN SendUnlockNotification = FALSE;
PLARGE_INTEGER TruncateSize = NULL;
//LARGE_INTEGER LocalTruncateSize;
BOOLEAN AcquiredVcb = FALSE, AcquiredFcb = FALSE;
NTSTATUS Status;
PVCB Vcb;
PFCB Fcb;
PCCB Ccb;
IrpSp = IoGetCurrentIrpStackLocation( Irp );
DPRINT("FatiCleanup\n");
DPRINT("\tIrp = %p\n", Irp);
DPRINT("\t->FileObject = %p\n", IrpSp->FileObject);
FileObject = IrpSp->FileObject;
TypeOfOpen = FatDecodeFileObject(FileObject, &Vcb, &Fcb, &Ccb);
if (TypeOfOpen == UnopenedFileObject)
{
DPRINT1("Unopened File Object\n");
FatCompleteRequest(IrpContext, Irp, STATUS_SUCCESS);
return STATUS_SUCCESS;
}
if (FlagOn( FileObject->Flags, FO_CLEANUP_COMPLETE ))
{
/* Just flush the file */
if (FlagOn(Vcb->State, VCB_STATE_FLAG_DEFERRED_FLUSH) &&
FlagOn(FileObject->Flags, FO_FILE_MODIFIED) &&
!FlagOn(Vcb->State, VCB_STATE_FLAG_WRITE_PROTECTED) &&
(TypeOfOpen == UserFileOpen))
{
//Status = FatFlushFile(IrpContext, Fcb, Flush);
//if (!NT_SUCCESS(Status)) FatNormalizeAndRaiseStatus(IrpContext, Status);
UNIMPLEMENTED;
}
FatCompleteRequest(IrpContext, Irp, STATUS_SUCCESS);
return STATUS_SUCCESS;
}
if (TypeOfOpen == UserFileOpen ||
TypeOfOpen == UserDirectoryOpen)
{
ASSERT(Fcb != NULL);
(VOID)FatAcquireExclusiveFcb(IrpContext, Fcb);
AcquiredFcb = TRUE;
/* Set FCB flags according to DELETE_ON_CLOSE */
if (FlagOn(Ccb->Flags, CCB_DELETE_ON_CLOSE))
{
ASSERT(FatNodeType(Fcb) != FAT_NTC_ROOT_DCB);
SetFlag(Fcb->State, FCB_STATE_DELETE_ON_CLOSE);
/* Issue a notification */
if (TypeOfOpen == UserDirectoryOpen)
{
FsRtlNotifyFullChangeDirectory(Vcb->NotifySync,
&Vcb->NotifyList,
FileObject->FsContext,
NULL,
FALSE,
FALSE,
0,
NULL,
NULL,
NULL);
}
}
/* If file should be deleted, acquire locks */
if ((Fcb->UncleanCount == 1) &&
FlagOn(Fcb->State, FCB_STATE_DELETE_ON_CLOSE) &&
(Fcb->Condition != FcbBad) &&
!FlagOn(Vcb->State, VCB_STATE_FLAG_WRITE_PROTECTED))
{
FatReleaseFcb(IrpContext, Fcb);
AcquiredFcb = FALSE;
(VOID)FatAcquireExclusiveVcb(IrpContext, Vcb);
AcquiredVcb = TRUE;
(VOID)FatAcquireExclusiveFcb(IrpContext, Fcb);
AcquiredFcb = TRUE;
}
}
/* Acquire VCB lock if it was a volume open */
if (TypeOfOpen == UserVolumeOpen)
{
(VOID)FatAcquireExclusiveVcb(IrpContext, Vcb);
AcquiredVcb = TRUE;
}
/* Cleanup all notifications */
if (TypeOfOpen == UserDirectoryOpen)
{
FsRtlNotifyCleanup(Vcb->NotifySync,
&Vcb->NotifyList,
Ccb);
}
if (Fcb)
{
//TODO: FatVerifyFcb
}
switch (TypeOfOpen)
{
case DirectoryFile:
case VirtualVolumeFile:
DPRINT1("Cleanup VirtualVolumeFile/DirectoryFile\n");
ShareAccess = NULL;
break;
case UserVolumeOpen:
DPRINT("Cleanup UserVolumeOpen\n");
if (FlagOn(Ccb->Flags, CCB_COMPLETE_DISMOUNT))
{
FatCheckForDismount( IrpContext, Vcb, TRUE );
} else if (FileObject->WriteAccess &&
FlagOn(FileObject->Flags, FO_FILE_MODIFIED))
{
UNIMPLEMENTED;
}
/* Release the volume and send notification */
if (FlagOn(Vcb->State, VCB_STATE_FLAG_LOCKED) &&
(Vcb->FileObjectWithVcbLocked == FileObject))
{
UNIMPLEMENTED;
SendUnlockNotification = TRUE;
}
ShareAccess = &Vcb->ShareAccess;
break;
case EaFile:
DPRINT1("Cleanup EaFileObject\n");
ShareAccess = NULL;
break;
case UserDirectoryOpen:
DPRINT("Cleanup UserDirectoryOpen\n");
ShareAccess = &Fcb->ShareAccess;
/* Should it be a delayed close? */
if ((Fcb->UncleanCount == 1) &&
(Fcb->OpenCount == 1) &&
(Fcb->Dcb.DirectoryFileOpenCount == 0) &&
!FlagOn(Fcb->State, FCB_STATE_DELETE_ON_CLOSE) &&
Fcb->Condition == FcbGood)
{
/* Yes, a delayed one */
SetFlag(Fcb->State, FCB_STATE_DELAY_CLOSE);
}
if (VcbGood == Vcb->Condition)
{
//FatUpdateDirentFromFcb( IrpContext, FileObject, Fcb, Ccb );
//TODO: Actually update dirent
}
if ((Fcb->UncleanCount == 1) &&
(FatNodeType(Fcb) == FAT_NTC_DCB) &&
(FlagOn(Fcb->State, FCB_STATE_DELETE_ON_CLOSE)) &&
(Fcb->Condition != FcbBad) &&
!FlagOn(Vcb->State, VCB_STATE_FLAG_WRITE_PROTECTED))
{
UNIMPLEMENTED;
}
/* Decrement unclean counter */
ASSERT(Fcb->UncleanCount != 0);
Fcb->UncleanCount--;
break;
case UserFileOpen:
DPRINT("Cleanup UserFileOpen\n");
ShareAccess = &Fcb->ShareAccess;
/* Should it be a delayed close? */
if ((FileObject->SectionObjectPointer->DataSectionObject == NULL) &&
(FileObject->SectionObjectPointer->ImageSectionObject == NULL) &&
(Fcb->UncleanCount == 1) &&
(Fcb->OpenCount == 1) &&
!FlagOn(Fcb->State, FCB_STATE_DELETE_ON_CLOSE) &&
Fcb->Condition == FcbGood)
{
/* Yes, a delayed one */
//SetFlag(Fcb->State, FCB_STATE_DELAY_CLOSE);
DPRINT1("Setting a delay on close for some reason for FCB %p, FF handle %p, file name '%wZ'\n", Fcb, Fcb->FatHandle, &Fcb->FullFileName);
}
/* Unlock all file locks */
FsRtlFastUnlockAll(&Fcb->Fcb.Lock,
FileObject,
IoGetRequestorProcess(Irp),
NULL);
if (Vcb->Condition == VcbGood)
{
if (Fcb->Condition != FcbBad)
{
//FatUpdateDirentFromFcb( IrpContext, FileObject, Fcb, Ccb );
// TODO: Update on-disk structures
}
if (Fcb->UncleanCount == 1 &&
Fcb->Condition != FcbBad)
{
//DELETE_CONTEXT DeleteContext;
/* Should this file be deleted on close? */
if (FlagOn(Fcb->State, FCB_STATE_DELETE_ON_CLOSE) &&
!FlagOn(Vcb->State, VCB_STATE_FLAG_WRITE_PROTECTED))
{
UNIMPLEMENTED;
}
else
{
if (!FlagOn(Fcb->State, FCB_STATE_PAGEFILE) &&
(Fcb->Header.ValidDataLength.LowPart < Fcb->Header.FileSize.LowPart))
{
#if 0
ULONG ValidDataLength;
ValidDataLength = Fcb->Header.ValidDataLength.LowPart;
if (ValidDataLength < Fcb->ValidDataToDisk) {
ValidDataLength = Fcb->ValidDataToDisk;
}
if (ValidDataLength < Fcb->Header.FileSize.LowPart)
{
FatZeroData( IrpContext,
Vcb,
FileObject,
ValidDataLength,
Fcb->Header.FileSize.LowPart -
ValidDataLength );
Fcb->ValidDataToDisk =
Fcb->Header.ValidDataLength.LowPart =
Fcb->Header.FileSize.LowPart;
if (CcIsFileCached(FileObject))
{
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)&Fcb->Header.AllocationSize);
}
}
#endif
DPRINT1("Zeroing out data is not implemented\n");
}
}
/* Should the file be truncated on close? */
if (FlagOn(Fcb->State, FCB_STATE_TRUNCATE_ON_CLOSE))
{
if (Vcb->Condition == VcbGood)
{
// TODO: Actually truncate the file allocation
UNIMPLEMENTED;
}
/* Remove truncation flag */
Fcb->State &= ~FCB_STATE_TRUNCATE_ON_CLOSE;
}
/* Check again if it should be deleted */
if (FlagOn(Fcb->State, FCB_STATE_DELETE_ON_CLOSE) &&
Fcb->Header.AllocationSize.LowPart == 0)
{
FatNotifyReportChange(IrpContext,
Vcb,
Fcb,
FILE_NOTIFY_CHANGE_FILE_NAME,
FILE_ACTION_REMOVED);
}
/* Remove the entry from the splay table if the file was deleted */
if (FlagOn(Fcb->State, FCB_STATE_DELETE_ON_CLOSE))
{
FatRemoveNames(IrpContext, Fcb);
}
}
}
ASSERT(Fcb->UncleanCount != 0);
Fcb->UncleanCount--;
if (!FlagOn(FileObject->Flags, FO_CACHE_SUPPORTED))
{
ASSERT(Fcb->NonCachedUncleanCount != 0);
Fcb->NonCachedUncleanCount--;
}
if (FlagOn(FileObject->Flags, FO_CACHE_SUPPORTED) &&
(Fcb->NonCachedUncleanCount != 0) &&
(Fcb->NonCachedUncleanCount == Fcb->UncleanCount) &&
(Fcb->SectionObjectPointers.DataSectionObject != NULL))
{
CcFlushCache(&Fcb->SectionObjectPointers, NULL, 0, NULL);
/* Acquire and release PagingIo to get in sync with lazy writer */
ExAcquireResourceExclusiveLite(Fcb->Header.PagingIoResource, TRUE);
ExReleaseResourceLite(Fcb->Header.PagingIoResource);
CcPurgeCacheSection(&Fcb->SectionObjectPointers,
NULL,
0,
FALSE);
}
if (Fcb->Condition == FcbBad)
{
//TruncateSize = &FatLargeZero;
UNIMPLEMENTED;
}
/* Cleanup the cache map */
CcUninitializeCacheMap(FileObject, TruncateSize, NULL);
break;
default:
KeBugCheckEx(FAT_FILE_SYSTEM, __LINE__, (ULONG_PTR)TypeOfOpen, 0, 0);
}
/* Cleanup the share access */
if (ShareAccess)
{
DPRINT("Cleaning up the share access\n");
IoRemoveShareAccess(FileObject, ShareAccess);
}
if (TypeOfOpen == UserFileOpen)
{
/* Update oplocks */
FsRtlCheckOplock(&Fcb->Fcb.Oplock,
Irp,
IrpContext,
NULL,
NULL);
Fcb->Header.IsFastIoPossible = FatIsFastIoPossible(Fcb);
}
/* Set the FO_CLEANUP_COMPLETE flag */
SetFlag(FileObject->Flags, FO_CLEANUP_COMPLETE);
Status = STATUS_SUCCESS;
// TODO: Unpin repinned BCBs
//FatUnpinRepinnedBcbs(IrpContext);
/* Flush the volume if necessary */
if (FlagOn(Vcb->State, VCB_STATE_FLAG_DEFERRED_FLUSH) &&
!FlagOn(Vcb->State, VCB_STATE_FLAG_WRITE_PROTECTED))
{
UNIMPLEMENTED;
}
/* Cleanup */
if (AcquiredFcb) FatReleaseFcb(IrpContext, Fcb);
if (AcquiredVcb) FatReleaseVcb(IrpContext, Vcb);
/* Send volume notification */
if (SendUnlockNotification)
FsRtlNotifyVolumeEvent(FileObject, FSRTL_VOLUME_UNLOCK);
return Status;
}