BOOLEAN FsFilterFastIoWrite(
__in PFILE_OBJECT FileObject,
__in PLARGE_INTEGER FileOffset,
__in ULONG Length,
__in BOOLEAN Wait,
__in ULONG LockKey,
__in PVOID Buffer,
__out PIO_STATUS_BLOCK IoStatus,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, FastIoWrite))
{
return (fastIoDispatch->FastIoWrite)(
FileObject,
FileOffset,
Length,
Wait,
LockKey,
Buffer,
IoStatus,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoMdlWriteCompleteCompressed(
__in PFILE_OBJECT FileObject,
__in PLARGE_INTEGER FileOffset,
__in PMDL MdlChain,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, MdlWriteCompleteCompressed))
{
return (fastIoDispatch->MdlWriteCompleteCompressed)(
FileObject,
FileOffset,
MdlChain,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoQueryNetworkOpenInfo(
__in PFILE_OBJECT FileObject,
__in BOOLEAN Wait,
__out PFILE_NETWORK_OPEN_INFORMATION Buffer,
__out PIO_STATUS_BLOCK IoStatus,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, FastIoQueryNetworkOpenInfo))
{
return (fastIoDispatch->FastIoQueryNetworkOpenInfo)(
FileObject,
Wait,
Buffer,
IoStatus,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoDeviceControl(
__in PFILE_OBJECT FileObject,
__in BOOLEAN Wait,
__in_opt PVOID InputBuffer,
__in ULONG InputBufferLength,
__out_opt PVOID OutputBuffer,
__in ULONG OutputBufferLength,
__in ULONG IoControlCode,
__out PIO_STATUS_BLOCK IoStatus,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, FastIoDeviceControl))
{
return (fastIoDispatch->FastIoDeviceControl)(
FileObject,
Wait,
InputBuffer,
InputBufferLength,
OutputBuffer,
OutputBufferLength,
IoControlCode,
IoStatus,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoUnlockAllByKey(
__in PFILE_OBJECT FileObject,
__in PVOID ProcessId,
__in ULONG Key,
__out PIO_STATUS_BLOCK IoStatus,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, FastIoUnlockAllByKey))
{
return (fastIoDispatch->FastIoUnlockAllByKey)(
FileObject,
ProcessId,
Key,
IoStatus,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoLock(
__in PFILE_OBJECT FileObject,
__in PLARGE_INTEGER FileOffset,
__in PLARGE_INTEGER Length,
__in PEPROCESS ProcessId,
__in ULONG Key,
__in BOOLEAN FailImmediately,
__in BOOLEAN ExclusiveLock,
__out PIO_STATUS_BLOCK IoStatus,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, FastIoLock))
{
return (fastIoDispatch->FastIoLock)(
FileObject,
FileOffset,
Length,
ProcessId,
Key,
FailImmediately,
ExclusiveLock,
IoStatus,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoMdlRead(
__in PFILE_OBJECT FileObject,
__in PLARGE_INTEGER FileOffset,
__in ULONG Length,
__in ULONG LockKey,
__out PMDL* MdlChain,
__out PIO_STATUS_BLOCK IoStatus,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PSYS_FREEZER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, MdlRead))
{
return (fastIoDispatch->MdlRead)(
FileObject,
FileOffset,
Length,
LockKey,
MdlChain,
IoStatus,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoQueryOpen(
__in PIRP Irp,
__out PFILE_NETWORK_OPEN_INFORMATION NetworkInformation,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, FastIoQueryOpen))
{
BOOLEAN result;
PIO_STACK_LOCATION irpSp = IoGetCurrentIrpStackLocation( Irp );
//
// Before calling the next filter, we must make sure their device
// object is in the current stack entry for the given IRP
//
irpSp->DeviceObject = nextDeviceObject;
result = (fastIoDispatch->FastIoQueryOpen)(
Irp,
NetworkInformation,
nextDeviceObject);
//
// Always restore the IRP back to our device object
//
irpSp->DeviceObject = DeviceObject;
return result;
}
return FALSE;
}
BOOLEAN FsFilterFastIoMdlReadComplete(
__in PFILE_OBJECT FileObject,
__in PMDL MdlChain,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PSYS_FREEZER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, MdlReadComplete))
{
return (fastIoDispatch->MdlReadComplete)(
FileObject,
MdlChain,
nextDeviceObject);
}
return FALSE;
}
BOOLEAN FsFilterFastIoWriteCompressed(
__in PFILE_OBJECT FileObject,
__in PLARGE_INTEGER FileOffset,
__in ULONG Length,
__in ULONG LockKey,
__in PVOID Buffer,
__out PMDL* MdlChain,
__out PIO_STATUS_BLOCK IoStatus,
__in struct _COMPRESSED_DATA_INFO* CompressedDataInfo,
__in ULONG CompressedDataInfoLength,
__in PDEVICE_OBJECT DeviceObject
)
{
//
// Pass through logic for this type of Fast I/O
//
PDEVICE_OBJECT nextDeviceObject = ((PFSFILTER_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedToDeviceObject;
PFAST_IO_DISPATCH fastIoDispatch = nextDeviceObject->DriverObject->FastIoDispatch;
if (VALID_FAST_IO_DISPATCH_HANDLER(fastIoDispatch, FastIoWriteCompressed))
{
return (fastIoDispatch->FastIoWriteCompressed)(
FileObject,
FileOffset,
Length,
LockKey,
Buffer,
MdlChain,
IoStatus,
CompressedDataInfo,
CompressedDataInfoLength,
nextDeviceObject );
}
return FALSE;
}
