cdoproc.h

winddk src目录下的文件系统驱动源码压缩!

/*++

Copyright (c) 1999 - 2002  Microsoft Corporation

Module Name:

    CdoProc.h

Abstract:

    This is the header file defining the functions of the kernel mode
    filter driver implementing the CDO sample.


Environment:

    Kernel mode


--*/


//
//  Functions implemented in operations.c
//



//
//  Functions implemented in CdoOperations.c
//

NTSTATUS
CdoCreateControlDeviceObject(
    __inout PDRIVER_OBJECT DriverObject
    );

VOID
CdoDeleteControlDeviceObject(
    VOID
    );

//
//  Functions implemented in CdoOperations.c
//

NTSTATUS
CdoMajorFunction(
    __inout PDEVICE_OBJECT DeviceObject,
    __inout PIRP Irp
    );

NTSTATUS
CdoHandlePrivateOpen(
    __in PIRP Irp
    );

NTSTATUS
CdoHandlePrivateCleanup(
    __in PIRP Irp
    );

NTSTATUS
CdoHandlePrivateClose(
    __in PIRP Irp
    );

NTSTATUS
CdoHandlePrivateFsControl (
    __in PDEVICE_OBJECT DeviceObject,
    __in ULONG IoControlCode,
    __in_bcount_opt(InputBufferLength) PVOID InputBuffer,
    __in ULONG InputBufferLength,
    __out_bcount_opt(OutputBufferLength) PVOID OutputBuffer,
    __in ULONG OutputBufferLength,
    __out PIO_STATUS_BLOCK IoStatus,
    __in_opt PIRP Irp
    );

BOOLEAN
CdoFastIoCheckIfPossible (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in ULONG Length,
    __in BOOLEAN Wait,
    __in ULONG LockKey,
    __in BOOLEAN CheckForReadOperation,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoRead (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in ULONG Length,
    __in BOOLEAN Wait,
    __in ULONG LockKey,
    __out_bcount(Length) PVOID Buffer,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoWrite (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in ULONG Length,
    __in BOOLEAN Wait,
    __in ULONG LockKey,
    __in_bcount(Length) PVOID Buffer,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoQueryBasicInfo (
    __in PFILE_OBJECT FileObject,
    __in BOOLEAN Wait,
    __out PFILE_BASIC_INFORMATION Buffer,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoQueryStandardInfo (
    __in PFILE_OBJECT FileObject,
    __in BOOLEAN Wait,
    __out PFILE_STANDARD_INFORMATION Buffer,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoLock (
    __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 );

BOOLEAN
CdoFastIoUnlockSingle (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in PLARGE_INTEGER Length,
    __in PEPROCESS ProcessId,
    __in ULONG Key,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoUnlockAll (
    __in PFILE_OBJECT FileObject,
    __in PEPROCESS ProcessId,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoUnlockAllByKey (
    __in PFILE_OBJECT FileObject,
    __in PVOID ProcessId,
    __in ULONG Key,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoDeviceControl (
    __in PFILE_OBJECT FileObject,
    __in BOOLEAN Wait,
    __in_bcount_opt(InputBufferLength) PVOID InputBuffer,
    __in ULONG InputBufferLength,
    __out_bcount_opt(OutputBufferLength) PVOID OutputBuffer,
    __in ULONG OutputBufferLength,
    __in ULONG IoControlCode,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject);

BOOLEAN
CdoFastIoQueryNetworkOpenInfo (
    __in PFILE_OBJECT FileObject,
    __in BOOLEAN Wait,
    __out PFILE_NETWORK_OPEN_INFORMATION Buffer,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoMdlRead (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in ULONG Length,
    __in ULONG LockKey,
    __deref_out PMDL *MdlChain,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoMdlReadComplete (
    __in PFILE_OBJECT FileObject,
    __in PMDL MdlChain,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoPrepareMdlWrite (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in ULONG Length,
    __in ULONG LockKey,
    __deref_out PMDL *MdlChain,
    __out PIO_STATUS_BLOCK IoStatus,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoMdlWriteComplete (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in PMDL MdlChain,
    __in PDEVICE_OBJECT DeviceObject );

BOOLEAN
CdoFastIoReadCompressed (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in ULONG Length,
    __in ULONG LockKey,
    __out_bcount(Length) PVOID Buffer,
    __deref_out PMDL *MdlChain,
    __out PIO_STATUS_BLOCK IoStatus,
    __out_bcount(CompressedDataInfoLength) struct _COMPRESSED_DATA_INFO *CompressedDataInfo,
    __in ULONG CompressedDataInfoLength,
    __in PDEVICE_OBJECT DeviceObject);

BOOLEAN
CdoFastIoWriteCompressed (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in ULONG Length,
    __in ULONG LockKey,
    __in_bcount(Length) PVOID Buffer,
    __deref_out PMDL *MdlChain,
    __out PIO_STATUS_BLOCK IoStatus,
    __in_bcount(CompressedDataInfoLength) struct _COMPRESSED_DATA_INFO *CompressedDataInfo,
    __in ULONG CompressedDataInfoLength,
    __in PDEVICE_OBJECT DeviceObject);

BOOLEAN
CdoFastIoMdlReadCompleteCompressed (
    __in PFILE_OBJECT FileObject,
    __in PMDL MdlChain,
    __in PDEVICE_OBJECT DeviceObject);

BOOLEAN
CdoFastIoMdlWriteCompleteCompressed (
    __in PFILE_OBJECT FileObject,
    __in PLARGE_INTEGER FileOffset,
    __in PMDL MdlChain,
    __in PDEVICE_OBJECT DeviceObject);

BOOLEAN
CdoFastIoQueryOpen (
    __in PIRP Irp,
    __out PFILE_NETWORK_OPEN_INFORMATION NetworkInformation,
    __in PDEVICE_OBJECT DeviceObject);




//
//  Resource support
//

FORCEINLINE
VOID
CdoAcquireResourceExclusive (
    __inout PERESOURCE Resource
    )
{
    ASSERT(KeGetCurrentIrql() <= APC_LEVEL);
    ASSERT(ExIsResourceAcquiredExclusiveLite(Resource) ||
           !ExIsResourceAcquiredSharedLite(Resource));

    KeEnterCriticalRegion();
    (VOID)ExAcquireResourceExclusiveLite( Resource, TRUE );
}

FORCEINLINE
VOID
CdoAcquireResourceShared (
    __inout PERESOURCE Resource
    )
{
    ASSERT(KeGetCurrentIrql() <= APC_LEVEL);

    KeEnterCriticalRegion();
    (VOID)ExAcquireResourceSharedLite( Resource, TRUE );
}

FORCEINLINE
VOID
CdoReleaseResource (
    __inout PERESOURCE Resource
    )
{
    ASSERT(KeGetCurrentIrql() <= APC_LEVEL);
    ASSERT(ExIsResourceAcquiredExclusiveLite(Resource) ||
           ExIsResourceAcquiredSharedLite(Resource));

    ExReleaseResourceLite(Resource);
    KeLeaveCriticalRegion();
}