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70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: drivers/filesystems/cdfs/devctrl.c
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* PURPOSE: CDROM (ISO 9660) filesystem driver
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* PROGRAMMER: Pierre Schweitzer
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*
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*/
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/* INCLUDES *****************************************************************/
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#include "cdfs.h"
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ****************************************************************/
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NTSTATUS NTAPI
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CdfsDeviceControl(
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PCDFS_IRP_CONTEXT IrpContext)
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{
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PIRP Irp;
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NTSTATUS Status;
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PVCB Vcb = NULL;
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PFILE_OBJECT FileObject;
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PIO_STACK_LOCATION Stack;
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DPRINT("CdfsDeviceControl()\n");
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ASSERT(IrpContext);
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Irp = IrpContext->Irp;
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Stack = IrpContext->Stack;
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FileObject = Stack->FileObject;
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Irp->IoStatus.Information = 0;
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/* FIXME: HACK, it means that CD has changed */
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if (!FileObject)
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{
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DPRINT1("FIXME: CdfsDeviceControl called without FileObject!\n");
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return STATUS_INVALID_DEVICE_REQUEST;
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}
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/* Only support such operations on volume */
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if (!(FileObject->RelatedFileObject == NULL || FileObject->RelatedFileObject->FsContext2 != NULL))
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{
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return STATUS_INVALID_PARAMETER;
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}
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if (Stack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_DISK_TYPE)
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{
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/* We should handle this one, but we don't! */
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Status = STATUS_NOT_IMPLEMENTED;
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}
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else
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{
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/* Pass it to storage driver */
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IoSkipCurrentIrpStackLocation(Irp);
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Vcb = (PVCB)Stack->DeviceObject->DeviceExtension;
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/* Lower driver will complete - we don't have to */
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IrpContext->Flags &= ~IRPCONTEXT_COMPLETE;
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Status = IoCallDriver(Vcb->StorageDevice, Irp);
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}
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return Status;
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}
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