mirror of
https://github.com/reactos/reactos.git
synced 2024-07-07 05:05:09 +00:00
- Add some more functions that just build IRPs to send to devices into iofunc.c from vpb.c
- Add IoCheckQuerySetvolumeInformation to util.c from vpb.c with other similar functions - Add the actual VPB functions in vpc.c to fs.c, and rename fs.c to volume.c, because it already contained Volume APIs, and now with VPB, even more so. It also still contains the FileSystem stuff, which is of course also generically part of "volumes". - Delete vpb.c, rename fs.c to volume.c. svn path=/trunk/; revision=22748
This commit is contained in:
Alex Ionescu
parent
9bb57a0fc7
commit
3ea25ef417
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@ -402,6 +402,86 @@ IoQueryFileInformation(IN PFILE_OBJECT FileObject,
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return Status;
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}
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/*
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* @implemented
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*/
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NTSTATUS STDCALL
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IoQueryVolumeInformation(IN PFILE_OBJECT FileObject,
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IN FS_INFORMATION_CLASS FsInformationClass,
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IN ULONG Length,
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OUT PVOID FsInformation,
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OUT PULONG ReturnedLength)
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{
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IO_STATUS_BLOCK IoStatusBlock;
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PIO_STACK_LOCATION StackPtr;
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PDEVICE_OBJECT DeviceObject;
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PIRP Irp;
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NTSTATUS Status;
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ASSERT(FsInformation != NULL);
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DPRINT("FsInformation %p\n", FsInformation);
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Status = ObReferenceObjectByPointer(FileObject,
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FILE_READ_ATTRIBUTES,
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IoFileObjectType,
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KernelMode);
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if (!NT_SUCCESS(Status))
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{
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return(Status);
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}
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DeviceObject = FileObject->DeviceObject;
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Irp = IoAllocateIrp(DeviceObject->StackSize,
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TRUE);
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if (Irp == NULL)
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{
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ObDereferenceObject(FileObject);
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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/* Trigger FileObject/Event dereferencing */
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Irp->Tail.Overlay.OriginalFileObject = FileObject;
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Irp->RequestorMode = KernelMode;
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Irp->AssociatedIrp.SystemBuffer = FsInformation;
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KeResetEvent( &FileObject->Event );
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Irp->UserEvent = &FileObject->Event;
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Irp->UserIosb = &IoStatusBlock;
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Irp->Tail.Overlay.Thread = PsGetCurrentThread();
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StackPtr = IoGetNextIrpStackLocation(Irp);
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StackPtr->MajorFunction = IRP_MJ_QUERY_VOLUME_INFORMATION;
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StackPtr->MinorFunction = 0;
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StackPtr->Flags = 0;
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StackPtr->Control = 0;
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StackPtr->DeviceObject = DeviceObject;
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StackPtr->FileObject = FileObject;
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StackPtr->Parameters.QueryVolume.Length = Length;
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StackPtr->Parameters.QueryVolume.FsInformationClass =
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FsInformationClass;
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Status = IoCallDriver(DeviceObject,
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Irp);
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if (Status == STATUS_PENDING)
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{
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KeWaitForSingleObject(&FileObject->Event,
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UserRequest,
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KernelMode,
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FALSE,
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NULL);
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Status = IoStatusBlock.Status;
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}
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DPRINT("Status %x\n", Status);
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if (ReturnedLength != NULL)
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{
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*ReturnedLength = IoStatusBlock.Information;
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}
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return(Status);
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}
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/*
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* @unimplemented
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*/
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@ -2421,3 +2501,328 @@ NtWriteFileGather(IN HANDLE FileHandle,
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return(STATUS_NOT_IMPLEMENTED);
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}
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/*
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* FUNCTION: Queries the volume information
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* ARGUMENTS:
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* FileHandle = Handle to a file object on the target volume
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* ReturnLength = DataWritten
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* FsInformation = Caller should supply storage for the information
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* structure.
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* Length = Size of the information structure
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* FsInformationClass = Index to a information structure
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*
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* FileFsVolumeInformation FILE_FS_VOLUME_INFORMATION
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* FileFsLabelInformation FILE_FS_LABEL_INFORMATION
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* FileFsSizeInformation FILE_FS_SIZE_INFORMATION
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* FileFsDeviceInformation FILE_FS_DEVICE_INFORMATION
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* FileFsAttributeInformation FILE_FS_ATTRIBUTE_INFORMATION
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* FileFsControlInformation
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* FileFsQuotaQueryInformation --
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* FileFsQuotaSetInformation --
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* FileFsMaximumInformation
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*
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* RETURNS: Status
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*
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* @implemented
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*/
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NTSTATUS STDCALL
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NtQueryVolumeInformationFile(IN HANDLE FileHandle,
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OUT PIO_STATUS_BLOCK IoStatusBlock,
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OUT PVOID FsInformation,
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IN ULONG Length,
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IN FS_INFORMATION_CLASS FsInformationClass)
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{
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PFILE_OBJECT FileObject;
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PDEVICE_OBJECT DeviceObject;
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PIRP Irp;
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NTSTATUS Status = STATUS_SUCCESS;
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PIO_STACK_LOCATION StackPtr;
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PVOID SystemBuffer;
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KPROCESSOR_MODE PreviousMode;
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DPRINT("FsInformation %p\n", FsInformation);
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PreviousMode = ExGetPreviousMode();
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if (PreviousMode != KernelMode)
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{
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_SEH_TRY
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{
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if (IoStatusBlock != NULL)
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{
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ProbeForWrite(IoStatusBlock,
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sizeof(IO_STATUS_BLOCK),
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sizeof(ULONG));
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}
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if (Length != 0)
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{
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ProbeForWrite(FsInformation,
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Length,
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1);
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}
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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}
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else
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{
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ASSERT(IoStatusBlock != NULL);
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ASSERT(FsInformation != NULL);
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}
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Status = ObReferenceObjectByHandle(FileHandle,
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0, /* FIXME - depends on the information class! */
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IoFileObjectType,
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PreviousMode,
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(PVOID*)&FileObject,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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return(Status);
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}
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DeviceObject = FileObject->DeviceObject;
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Irp = IoAllocateIrp(DeviceObject->StackSize,
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TRUE);
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if (Irp == NULL)
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{
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ObDereferenceObject(FileObject);
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
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Length,
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TAG_SYSB);
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if (SystemBuffer == NULL)
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{
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IoFreeIrp(Irp);
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ObDereferenceObject(FileObject);
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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/* Trigger FileObject/Event dereferencing */
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Irp->Tail.Overlay.OriginalFileObject = FileObject;
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Irp->RequestorMode = PreviousMode;
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Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
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KeResetEvent( &FileObject->Event );
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Irp->UserEvent = &FileObject->Event;
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Irp->UserIosb = IoStatusBlock;
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Irp->Tail.Overlay.Thread = PsGetCurrentThread();
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StackPtr = IoGetNextIrpStackLocation(Irp);
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StackPtr->MajorFunction = IRP_MJ_QUERY_VOLUME_INFORMATION;
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StackPtr->MinorFunction = 0;
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StackPtr->Flags = 0;
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StackPtr->Control = 0;
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StackPtr->DeviceObject = DeviceObject;
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StackPtr->FileObject = FileObject;
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StackPtr->Parameters.QueryVolume.Length = Length;
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StackPtr->Parameters.QueryVolume.FsInformationClass =
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FsInformationClass;
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Status = IoCallDriver(DeviceObject,
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Irp);
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if (Status == STATUS_PENDING)
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{
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KeWaitForSingleObject(&FileObject->Event,
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UserRequest,
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PreviousMode,
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FALSE,
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NULL);
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Status = IoStatusBlock->Status;
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}
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DPRINT("Status %x\n", Status);
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if (NT_SUCCESS(Status))
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{
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_SEH_TRY
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{
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DPRINT("Information %lu\n", IoStatusBlock->Information);
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RtlCopyMemory(FsInformation,
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SystemBuffer,
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IoStatusBlock->Information);
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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}
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ExFreePool(SystemBuffer);
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return(Status);
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}
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/*
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* @implemented
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*/
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NTSTATUS STDCALL
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NtSetVolumeInformationFile(IN HANDLE FileHandle,
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OUT PIO_STATUS_BLOCK IoStatusBlock,
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IN PVOID FsInformation,
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IN ULONG Length,
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IN FS_INFORMATION_CLASS FsInformationClass)
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{
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PFILE_OBJECT FileObject;
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PDEVICE_OBJECT DeviceObject;
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PIRP Irp;
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NTSTATUS Status;
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PIO_STACK_LOCATION StackPtr;
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PVOID SystemBuffer;
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KPROCESSOR_MODE PreviousMode;
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PreviousMode = ExGetPreviousMode();
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if (PreviousMode != KernelMode)
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{
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Status = STATUS_SUCCESS;
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_SEH_TRY
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{
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if (IoStatusBlock != NULL)
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{
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ProbeForWrite(IoStatusBlock,
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sizeof(IO_STATUS_BLOCK),
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sizeof(ULONG));
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}
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if (Length != 0)
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{
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ProbeForRead(FsInformation,
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Length,
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1);
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}
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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}
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else
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{
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ASSERT(IoStatusBlock != NULL);
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ASSERT(FsInformation != NULL);
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}
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Status = ObReferenceObjectByHandle(FileHandle,
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FILE_WRITE_ATTRIBUTES,
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NULL,
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PreviousMode,
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(PVOID*)&FileObject,
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NULL);
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if (Status != STATUS_SUCCESS)
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{
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return(Status);
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}
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DeviceObject = FileObject->DeviceObject;
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Irp = IoAllocateIrp(DeviceObject->StackSize,TRUE);
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if (Irp == NULL)
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{
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ObDereferenceObject(FileObject);
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
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Length,
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TAG_SYSB);
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if (SystemBuffer == NULL)
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{
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Status = STATUS_INSUFFICIENT_RESOURCES;
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goto failfreeirp;
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}
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if (PreviousMode != KernelMode)
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{
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_SEH_TRY
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{
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/* no need to probe again */
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RtlCopyMemory(SystemBuffer,
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FsInformation,
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Length);
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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if (!NT_SUCCESS(Status))
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{
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ExFreePoolWithTag(SystemBuffer,
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TAG_SYSB);
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failfreeirp:
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IoFreeIrp(Irp);
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ObDereferenceObject(FileObject);
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return Status;
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}
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}
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else
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{
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RtlCopyMemory(SystemBuffer,
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FsInformation,
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Length);
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}
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/* Trigger FileObject/Event dereferencing */
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Irp->Tail.Overlay.OriginalFileObject = FileObject;
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Irp->RequestorMode = PreviousMode;
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Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
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KeResetEvent( &FileObject->Event );
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Irp->UserEvent = &FileObject->Event;
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Irp->UserIosb = IoStatusBlock;
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Irp->Tail.Overlay.Thread = PsGetCurrentThread();
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StackPtr = IoGetNextIrpStackLocation(Irp);
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StackPtr->MajorFunction = IRP_MJ_SET_VOLUME_INFORMATION;
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StackPtr->MinorFunction = 0;
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StackPtr->Flags = 0;
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StackPtr->Control = 0;
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StackPtr->DeviceObject = DeviceObject;
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StackPtr->FileObject = FileObject;
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StackPtr->Parameters.SetVolume.Length = Length;
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StackPtr->Parameters.SetVolume.FsInformationClass =
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FsInformationClass;
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Status = IoCallDriver(DeviceObject,Irp);
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if (Status == STATUS_PENDING)
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{
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KeWaitForSingleObject(&FileObject->Event,
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UserRequest,
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PreviousMode,
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FALSE,
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NULL);
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_SEH_TRY
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{
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Status = IoStatusBlock->Status;
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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}
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ExFreePool(SystemBuffer);
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return(Status);
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}
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@ -195,4 +195,16 @@ IoGetDeviceToVerify(IN PETHREAD Thread)
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return Thread->DeviceToVerify;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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IoCheckQuerySetVolumeInformation(IN FS_INFORMATION_CLASS FsInformationClass,
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IN ULONG Length,
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IN BOOLEAN SetOperation)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/* EOF */
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|
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@ -33,6 +33,10 @@ typedef struct _FS_CHANGE_NOTIFY_ENTRY
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PDRIVER_FS_NOTIFICATION FSDNotificationProc;
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} FS_CHANGE_NOTIFY_ENTRY, *PFS_CHANGE_NOTIFY_ENTRY;
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#if defined (ALLOC_PRAGMA)
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#pragma alloc_text(INIT, IoInitVpbImplementation)
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#endif
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|
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/* GLOBALS ******************************************************************/
|
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static ERESOURCE FileSystemListLock;
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|
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@ -45,9 +49,40 @@ static VOID
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IopNotifyFileSystemChange(PDEVICE_OBJECT DeviceObject,
|
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BOOLEAN DriverActive);
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|
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|
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static KSPIN_LOCK IoVpbLock;
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/* FUNCTIONS *****************************************************************/
|
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|
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VOID INIT_FUNCTION
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IoInitVpbImplementation(VOID)
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{
|
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KeInitializeSpinLock(&IoVpbLock);
|
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}
|
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|
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NTSTATUS
|
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STDCALL
|
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IopAttachVpb(PDEVICE_OBJECT DeviceObject)
|
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{
|
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PVPB Vpb;
|
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|
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/* Allocate the Vpb */
|
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Vpb = ExAllocatePoolWithTag(NonPagedPool,
|
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sizeof(VPB),
|
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TAG_VPB);
|
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if (Vpb == NULL) return(STATUS_UNSUCCESSFUL);
|
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|
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/* Clear it so we don't waste time manually */
|
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RtlZeroMemory(Vpb, sizeof(VPB));
|
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|
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/* Set the Header and Device Field */
|
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Vpb->Type = IO_TYPE_VPB;
|
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Vpb->Size = sizeof(VPB);
|
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Vpb->RealDevice = DeviceObject;
|
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|
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/* link it to the Device Object */
|
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DeviceObject->Vpb = Vpb;
|
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return(STATUS_SUCCESS);
|
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}
|
||||
|
||||
VOID INIT_FUNCTION
|
||||
IoInitFileSystemImplementation(VOID)
|
||||
{
|
||||
|
|
@ -603,4 +638,25 @@ IoUnregisterFsRegistrationChange(IN PDRIVER_OBJECT DriverObject,
|
|||
}
|
||||
}
|
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|
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/*
|
||||
* @implemented
|
||||
*/
|
||||
VOID STDCALL
|
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IoAcquireVpbSpinLock(OUT PKIRQL Irql)
|
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{
|
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KeAcquireSpinLock(&IoVpbLock,
|
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Irql);
|
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}
|
||||
|
||||
|
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/*
|
||||
* @implemented
|
||||
*/
|
||||
VOID STDCALL
|
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IoReleaseVpbSpinLock(IN KIRQL Irql)
|
||||
{
|
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KeReleaseSpinLock(&IoVpbLock,
|
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Irql);
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
|
@ -1,502 +0,0 @@
|
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/* $Id$
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
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* PROJECT: ReactOS kernel
|
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* FILE: ntoskrnl/io/vpb.c
|
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* PURPOSE: Volume Parameter Block managment
|
||||
*
|
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* PROGRAMMERS: David Welch (welch@mcmail.com)
|
||||
*/
|
||||
|
||||
/* INCLUDES *****************************************************************/
|
||||
|
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#include <ntoskrnl.h>
|
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#define NDEBUG
|
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#include <internal/debug.h>
|
||||
|
||||
#if defined (ALLOC_PRAGMA)
|
||||
#pragma alloc_text(INIT, IoInitVpbImplementation)
|
||||
#endif
|
||||
|
||||
|
||||
/* GLOBALS *******************************************************************/
|
||||
|
||||
static KSPIN_LOCK IoVpbLock;
|
||||
|
||||
/* FUNCTIONS *****************************************************************/
|
||||
|
||||
VOID INIT_FUNCTION
|
||||
IoInitVpbImplementation(VOID)
|
||||
{
|
||||
KeInitializeSpinLock(&IoVpbLock);
|
||||
}
|
||||
|
||||
NTSTATUS
|
||||
STDCALL
|
||||
IopAttachVpb(PDEVICE_OBJECT DeviceObject)
|
||||
{
|
||||
PVPB Vpb;
|
||||
|
||||
/* Allocate the Vpb */
|
||||
Vpb = ExAllocatePoolWithTag(NonPagedPool,
|
||||
sizeof(VPB),
|
||||
TAG_VPB);
|
||||
if (Vpb == NULL) return(STATUS_UNSUCCESSFUL);
|
||||
|
||||
/* Clear it so we don't waste time manually */
|
||||
RtlZeroMemory(Vpb, sizeof(VPB));
|
||||
|
||||
/* Set the Header and Device Field */
|
||||
Vpb->Type = IO_TYPE_VPB;
|
||||
Vpb->Size = sizeof(VPB);
|
||||
Vpb->RealDevice = DeviceObject;
|
||||
|
||||
/* link it to the Device Object */
|
||||
DeviceObject->Vpb = Vpb;
|
||||
return(STATUS_SUCCESS);
|
||||
}
|
||||
|
||||
/*
|
||||
* FUNCTION: Queries the volume information
|
||||
* ARGUMENTS:
|
||||
* FileHandle = Handle to a file object on the target volume
|
||||
* ReturnLength = DataWritten
|
||||
* FsInformation = Caller should supply storage for the information
|
||||
* structure.
|
||||
* Length = Size of the information structure
|
||||
* FsInformationClass = Index to a information structure
|
||||
*
|
||||
* FileFsVolumeInformation FILE_FS_VOLUME_INFORMATION
|
||||
* FileFsLabelInformation FILE_FS_LABEL_INFORMATION
|
||||
* FileFsSizeInformation FILE_FS_SIZE_INFORMATION
|
||||
* FileFsDeviceInformation FILE_FS_DEVICE_INFORMATION
|
||||
* FileFsAttributeInformation FILE_FS_ATTRIBUTE_INFORMATION
|
||||
* FileFsControlInformation
|
||||
* FileFsQuotaQueryInformation --
|
||||
* FileFsQuotaSetInformation --
|
||||
* FileFsMaximumInformation
|
||||
*
|
||||
* RETURNS: Status
|
||||
*
|
||||
* @implemented
|
||||
*/
|
||||
|
||||
NTSTATUS STDCALL
|
||||
NtQueryVolumeInformationFile(IN HANDLE FileHandle,
|
||||
OUT PIO_STATUS_BLOCK IoStatusBlock,
|
||||
OUT PVOID FsInformation,
|
||||
IN ULONG Length,
|
||||
IN FS_INFORMATION_CLASS FsInformationClass)
|
||||
{
|
||||
PFILE_OBJECT FileObject;
|
||||
PDEVICE_OBJECT DeviceObject;
|
||||
PIRP Irp;
|
||||
NTSTATUS Status = STATUS_SUCCESS;
|
||||
PIO_STACK_LOCATION StackPtr;
|
||||
PVOID SystemBuffer;
|
||||
KPROCESSOR_MODE PreviousMode;
|
||||
|
||||
DPRINT("FsInformation %p\n", FsInformation);
|
||||
|
||||
PreviousMode = ExGetPreviousMode();
|
||||
|
||||
if (PreviousMode != KernelMode)
|
||||
{
|
||||
_SEH_TRY
|
||||
{
|
||||
if (IoStatusBlock != NULL)
|
||||
{
|
||||
ProbeForWrite(IoStatusBlock,
|
||||
sizeof(IO_STATUS_BLOCK),
|
||||
sizeof(ULONG));
|
||||
}
|
||||
|
||||
if (Length != 0)
|
||||
{
|
||||
ProbeForWrite(FsInformation,
|
||||
Length,
|
||||
1);
|
||||
}
|
||||
}
|
||||
_SEH_HANDLE
|
||||
{
|
||||
Status = _SEH_GetExceptionCode();
|
||||
}
|
||||
_SEH_END;
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return Status;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
ASSERT(IoStatusBlock != NULL);
|
||||
ASSERT(FsInformation != NULL);
|
||||
}
|
||||
|
||||
Status = ObReferenceObjectByHandle(FileHandle,
|
||||
0, /* FIXME - depends on the information class! */
|
||||
IoFileObjectType,
|
||||
PreviousMode,
|
||||
(PVOID*)&FileObject,
|
||||
NULL);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return(Status);
|
||||
}
|
||||
|
||||
DeviceObject = FileObject->DeviceObject;
|
||||
|
||||
Irp = IoAllocateIrp(DeviceObject->StackSize,
|
||||
TRUE);
|
||||
if (Irp == NULL)
|
||||
{
|
||||
ObDereferenceObject(FileObject);
|
||||
return(STATUS_INSUFFICIENT_RESOURCES);
|
||||
}
|
||||
|
||||
SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
|
||||
Length,
|
||||
TAG_SYSB);
|
||||
if (SystemBuffer == NULL)
|
||||
{
|
||||
IoFreeIrp(Irp);
|
||||
ObDereferenceObject(FileObject);
|
||||
return(STATUS_INSUFFICIENT_RESOURCES);
|
||||
}
|
||||
|
||||
/* Trigger FileObject/Event dereferencing */
|
||||
Irp->Tail.Overlay.OriginalFileObject = FileObject;
|
||||
|
||||
Irp->RequestorMode = PreviousMode;
|
||||
Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
|
||||
KeResetEvent( &FileObject->Event );
|
||||
Irp->UserEvent = &FileObject->Event;
|
||||
Irp->UserIosb = IoStatusBlock;
|
||||
Irp->Tail.Overlay.Thread = PsGetCurrentThread();
|
||||
|
||||
StackPtr = IoGetNextIrpStackLocation(Irp);
|
||||
StackPtr->MajorFunction = IRP_MJ_QUERY_VOLUME_INFORMATION;
|
||||
StackPtr->MinorFunction = 0;
|
||||
StackPtr->Flags = 0;
|
||||
StackPtr->Control = 0;
|
||||
StackPtr->DeviceObject = DeviceObject;
|
||||
StackPtr->FileObject = FileObject;
|
||||
StackPtr->Parameters.QueryVolume.Length = Length;
|
||||
StackPtr->Parameters.QueryVolume.FsInformationClass =
|
||||
FsInformationClass;
|
||||
|
||||
Status = IoCallDriver(DeviceObject,
|
||||
Irp);
|
||||
if (Status == STATUS_PENDING)
|
||||
{
|
||||
KeWaitForSingleObject(&FileObject->Event,
|
||||
UserRequest,
|
||||
PreviousMode,
|
||||
FALSE,
|
||||
NULL);
|
||||
Status = IoStatusBlock->Status;
|
||||
}
|
||||
DPRINT("Status %x\n", Status);
|
||||
|
||||
if (NT_SUCCESS(Status))
|
||||
{
|
||||
_SEH_TRY
|
||||
{
|
||||
DPRINT("Information %lu\n", IoStatusBlock->Information);
|
||||
RtlCopyMemory(FsInformation,
|
||||
SystemBuffer,
|
||||
IoStatusBlock->Information);
|
||||
}
|
||||
_SEH_HANDLE
|
||||
{
|
||||
Status = _SEH_GetExceptionCode();
|
||||
}
|
||||
_SEH_END;
|
||||
}
|
||||
|
||||
ExFreePool(SystemBuffer);
|
||||
|
||||
return(Status);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* @implemented
|
||||
*/
|
||||
NTSTATUS STDCALL
|
||||
IoQueryVolumeInformation(IN PFILE_OBJECT FileObject,
|
||||
IN FS_INFORMATION_CLASS FsInformationClass,
|
||||
IN ULONG Length,
|
||||
OUT PVOID FsInformation,
|
||||
OUT PULONG ReturnedLength)
|
||||
{
|
||||
IO_STATUS_BLOCK IoStatusBlock;
|
||||
PIO_STACK_LOCATION StackPtr;
|
||||
PDEVICE_OBJECT DeviceObject;
|
||||
PIRP Irp;
|
||||
NTSTATUS Status;
|
||||
|
||||
ASSERT(FsInformation != NULL);
|
||||
|
||||
DPRINT("FsInformation %p\n", FsInformation);
|
||||
|
||||
Status = ObReferenceObjectByPointer(FileObject,
|
||||
FILE_READ_ATTRIBUTES,
|
||||
IoFileObjectType,
|
||||
KernelMode);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return(Status);
|
||||
}
|
||||
|
||||
DeviceObject = FileObject->DeviceObject;
|
||||
|
||||
Irp = IoAllocateIrp(DeviceObject->StackSize,
|
||||
TRUE);
|
||||
if (Irp == NULL)
|
||||
{
|
||||
ObDereferenceObject(FileObject);
|
||||
return(STATUS_INSUFFICIENT_RESOURCES);
|
||||
}
|
||||
|
||||
/* Trigger FileObject/Event dereferencing */
|
||||
Irp->Tail.Overlay.OriginalFileObject = FileObject;
|
||||
Irp->RequestorMode = KernelMode;
|
||||
Irp->AssociatedIrp.SystemBuffer = FsInformation;
|
||||
KeResetEvent( &FileObject->Event );
|
||||
Irp->UserEvent = &FileObject->Event;
|
||||
Irp->UserIosb = &IoStatusBlock;
|
||||
Irp->Tail.Overlay.Thread = PsGetCurrentThread();
|
||||
|
||||
StackPtr = IoGetNextIrpStackLocation(Irp);
|
||||
StackPtr->MajorFunction = IRP_MJ_QUERY_VOLUME_INFORMATION;
|
||||
StackPtr->MinorFunction = 0;
|
||||
StackPtr->Flags = 0;
|
||||
StackPtr->Control = 0;
|
||||
StackPtr->DeviceObject = DeviceObject;
|
||||
StackPtr->FileObject = FileObject;
|
||||
StackPtr->Parameters.QueryVolume.Length = Length;
|
||||
StackPtr->Parameters.QueryVolume.FsInformationClass =
|
||||
FsInformationClass;
|
||||
|
||||
Status = IoCallDriver(DeviceObject,
|
||||
Irp);
|
||||
if (Status == STATUS_PENDING)
|
||||
{
|
||||
KeWaitForSingleObject(&FileObject->Event,
|
||||
UserRequest,
|
||||
KernelMode,
|
||||
FALSE,
|
||||
NULL);
|
||||
Status = IoStatusBlock.Status;
|
||||
}
|
||||
DPRINT("Status %x\n", Status);
|
||||
|
||||
if (ReturnedLength != NULL)
|
||||
{
|
||||
*ReturnedLength = IoStatusBlock.Information;
|
||||
}
|
||||
|
||||
return(Status);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* @implemented
|
||||
*/
|
||||
NTSTATUS STDCALL
|
||||
NtSetVolumeInformationFile(IN HANDLE FileHandle,
|
||||
OUT PIO_STATUS_BLOCK IoStatusBlock,
|
||||
IN PVOID FsInformation,
|
||||
IN ULONG Length,
|
||||
IN FS_INFORMATION_CLASS FsInformationClass)
|
||||
{
|
||||
PFILE_OBJECT FileObject;
|
||||
PDEVICE_OBJECT DeviceObject;
|
||||
PIRP Irp;
|
||||
NTSTATUS Status;
|
||||
PIO_STACK_LOCATION StackPtr;
|
||||
PVOID SystemBuffer;
|
||||
KPROCESSOR_MODE PreviousMode;
|
||||
|
||||
PreviousMode = ExGetPreviousMode();
|
||||
|
||||
if (PreviousMode != KernelMode)
|
||||
{
|
||||
Status = STATUS_SUCCESS;
|
||||
_SEH_TRY
|
||||
{
|
||||
if (IoStatusBlock != NULL)
|
||||
{
|
||||
ProbeForWrite(IoStatusBlock,
|
||||
sizeof(IO_STATUS_BLOCK),
|
||||
sizeof(ULONG));
|
||||
}
|
||||
|
||||
if (Length != 0)
|
||||
{
|
||||
ProbeForRead(FsInformation,
|
||||
Length,
|
||||
1);
|
||||
}
|
||||
}
|
||||
_SEH_HANDLE
|
||||
{
|
||||
Status = _SEH_GetExceptionCode();
|
||||
}
|
||||
_SEH_END;
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return Status;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
ASSERT(IoStatusBlock != NULL);
|
||||
ASSERT(FsInformation != NULL);
|
||||
}
|
||||
|
||||
Status = ObReferenceObjectByHandle(FileHandle,
|
||||
FILE_WRITE_ATTRIBUTES,
|
||||
NULL,
|
||||
PreviousMode,
|
||||
(PVOID*)&FileObject,
|
||||
NULL);
|
||||
if (Status != STATUS_SUCCESS)
|
||||
{
|
||||
return(Status);
|
||||
}
|
||||
|
||||
DeviceObject = FileObject->DeviceObject;
|
||||
|
||||
Irp = IoAllocateIrp(DeviceObject->StackSize,TRUE);
|
||||
if (Irp == NULL)
|
||||
{
|
||||
ObDereferenceObject(FileObject);
|
||||
return(STATUS_INSUFFICIENT_RESOURCES);
|
||||
}
|
||||
|
||||
SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
|
||||
Length,
|
||||
TAG_SYSB);
|
||||
if (SystemBuffer == NULL)
|
||||
{
|
||||
Status = STATUS_INSUFFICIENT_RESOURCES;
|
||||
goto failfreeirp;
|
||||
}
|
||||
|
||||
if (PreviousMode != KernelMode)
|
||||
{
|
||||
_SEH_TRY
|
||||
{
|
||||
/* no need to probe again */
|
||||
RtlCopyMemory(SystemBuffer,
|
||||
FsInformation,
|
||||
Length);
|
||||
}
|
||||
_SEH_HANDLE
|
||||
{
|
||||
Status = _SEH_GetExceptionCode();
|
||||
}
|
||||
_SEH_END;
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
ExFreePoolWithTag(SystemBuffer,
|
||||
TAG_SYSB);
|
||||
failfreeirp:
|
||||
IoFreeIrp(Irp);
|
||||
ObDereferenceObject(FileObject);
|
||||
return Status;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
RtlCopyMemory(SystemBuffer,
|
||||
FsInformation,
|
||||
Length);
|
||||
}
|
||||
|
||||
/* Trigger FileObject/Event dereferencing */
|
||||
Irp->Tail.Overlay.OriginalFileObject = FileObject;
|
||||
Irp->RequestorMode = PreviousMode;
|
||||
Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
|
||||
KeResetEvent( &FileObject->Event );
|
||||
Irp->UserEvent = &FileObject->Event;
|
||||
Irp->UserIosb = IoStatusBlock;
|
||||
Irp->Tail.Overlay.Thread = PsGetCurrentThread();
|
||||
|
||||
StackPtr = IoGetNextIrpStackLocation(Irp);
|
||||
StackPtr->MajorFunction = IRP_MJ_SET_VOLUME_INFORMATION;
|
||||
StackPtr->MinorFunction = 0;
|
||||
StackPtr->Flags = 0;
|
||||
StackPtr->Control = 0;
|
||||
StackPtr->DeviceObject = DeviceObject;
|
||||
StackPtr->FileObject = FileObject;
|
||||
StackPtr->Parameters.SetVolume.Length = Length;
|
||||
StackPtr->Parameters.SetVolume.FsInformationClass =
|
||||
FsInformationClass;
|
||||
|
||||
Status = IoCallDriver(DeviceObject,Irp);
|
||||
if (Status == STATUS_PENDING)
|
||||
{
|
||||
KeWaitForSingleObject(&FileObject->Event,
|
||||
UserRequest,
|
||||
PreviousMode,
|
||||
FALSE,
|
||||
NULL);
|
||||
_SEH_TRY
|
||||
{
|
||||
Status = IoStatusBlock->Status;
|
||||
}
|
||||
_SEH_HANDLE
|
||||
{
|
||||
Status = _SEH_GetExceptionCode();
|
||||
}
|
||||
_SEH_END;
|
||||
}
|
||||
|
||||
ExFreePool(SystemBuffer);
|
||||
|
||||
return(Status);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* @implemented
|
||||
*/
|
||||
VOID STDCALL
|
||||
IoAcquireVpbSpinLock(OUT PKIRQL Irql)
|
||||
{
|
||||
KeAcquireSpinLock(&IoVpbLock,
|
||||
Irql);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* @implemented
|
||||
*/
|
||||
VOID STDCALL
|
||||
IoReleaseVpbSpinLock(IN KIRQL Irql)
|
||||
{
|
||||
KeReleaseSpinLock(&IoVpbLock,
|
||||
Irql);
|
||||
}
|
||||
|
||||
/*
|
||||
* @unimplemented
|
||||
*/
|
||||
NTSTATUS
|
||||
STDCALL
|
||||
IoCheckQuerySetVolumeInformation(IN FS_INFORMATION_CLASS FsInformationClass,
|
||||
IN ULONG Length,
|
||||
IN BOOLEAN SetOperation)
|
||||
{
|
||||
UNIMPLEMENTED;
|
||||
return STATUS_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
|
@ -175,7 +175,6 @@
|
|||
<file>error.c</file>
|
||||
<file>event.c</file>
|
||||
<file>file.c</file>
|
||||
<file>fs.c</file>
|
||||
<file>iocomp.c</file>
|
||||
<file>iofunc.c</file>
|
||||
<file>iomgr.c</file>
|
||||
|
|
@ -189,7 +188,7 @@
|
|||
<file>util.c</file>
|
||||
<file>symlink.c</file>
|
||||
<file>timer.c</file>
|
||||
<file>vpb.c</file>
|
||||
<file>volume.c</file>
|
||||
</directory>
|
||||
<directory name="pnpmgr">
|
||||
<file>plugplay.c</file>
|
||||
|
|
|
|||
Loading…
Reference in a new issue