Function Ext2IsMediaWriteProtected

Ext4Fsd/fsctl.c:2002–2045

}

BOOLEAN
Ext2IsMediaWriteProtected (
    IN PEXT2_IRP_CONTEXT   IrpContext,
    IN PDEVICE_OBJECT TargetDevice
)
{
    PIRP            Irp;
    KEVENT          Event;
    NTSTATUS        Status;
    IO_STATUS_BLOCK IoStatus;

    KeInitializeEvent(&Event, NotificationEvent, FALSE);

    Irp = IoBuildDeviceIoControlRequest( IOCTL_DISK_IS_WRITABLE,
                                         TargetDevice,
                                         NULL,
                                         0,
                                         NULL,
                                         0,
                                         FALSE,
                                         &Event,
                                         &IoStatus );

    if (Irp == NULL) {
        return FALSE;
    }

    SetFlag(IoGetNextIrpStackLocation(Irp)->Flags, SL_OVERRIDE_VERIFY_VOLUME);

    Status = IoCallDriver(TargetDevice, Irp);

    if (Status == STATUS_PENDING) {

        (VOID) KeWaitForSingleObject( &Event,
                                      Executive,
                                      KernelMode,
                                      FALSE,
                                      (PLARGE_INTEGER)NULL );

        Status = IoStatus.Status;
    }

    return (BOOLEAN)(Status == STATUS_MEDIA_WRITE_PROTECTED);
}

NTSTATUS
Ext2MountVolume (IN PEXT2_IRP_CONTEXT IrpContext)