+++ /dev/null
-/*
- * PROJECT: ReactOS FAT file system driver
- * LICENSE: GNU GPLv3 as published by the Free Software Foundation
- * FILE: drivers/filesystems/fastfat/cleanup.c
- * PURPOSE: Cleanup routines
- * PROGRAMMERS: Aleksey Bragin (aleksey@reactos.org)
- */
-
-/* INCLUDES *****************************************************************/
-
-#define NDEBUG
-#include "fastfat.h"
-
-/* FUNCTIONS ****************************************************************/
-
-/* 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;
-}
-
-NTSTATUS
-NTAPI
-FatCleanup(PDEVICE_OBJECT DeviceObject, PIRP Irp)
-{
- PFAT_IRP_CONTEXT IrpContext;
- NTSTATUS Status;
-
- DPRINT("FatCleanup(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
-
- /* FatCleanup works only with a volume device object */
- if (DeviceObject == FatGlobalData.DiskDeviceObject)
- {
- /* Complete the request and return success */
- Irp->IoStatus.Status = STATUS_SUCCESS;
- Irp->IoStatus.Information = FILE_OPENED;
-
- IoCompleteRequest(Irp, IO_DISK_INCREMENT);
-
- return STATUS_SUCCESS;
- }
-
- /* Enter FsRtl critical region */
- FsRtlEnterFileSystem();
-
- /* Build an irp context */
- IrpContext = FatBuildIrpContext(Irp, TRUE);
-
- /* Call internal function */
- Status = FatiCleanup(IrpContext, Irp);
-
- /* Leave FsRtl critical region */
- FsRtlExitFileSystem();
-
- return Status;
-}
-
-/* EOF */
projects / reactos.git / blobdiff