C++ (Cpp) FspDeviceExtension Exemples

Exemple #1

Fichier : iop.c Projet : billziss-gh/winfsp

VOID FspIopCompleteIrpEx(PIRP Irp, NTSTATUS Result, BOOLEAN DeviceDereference)
{
    PAGED_CODE();

    ASSERT(STATUS_PENDING != Result);
    ASSERT(0 == (FSP_STATUS_PRIVATE_BIT & Result));

    if (0 != FspIrpRequest(Irp))
    {
        FspIopDeleteRequest(FspIrpRequest(Irp));
        FspIrpSetRequest(Irp, 0);
    }

    /* get the device object out of the IRP before completion */
    PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
    PDEVICE_OBJECT DeviceObject = IrpSp->DeviceObject;

    /*
     * HACK:
     *
     * We update the Create statistics here to avoid doing it in multiple places.
     */
    if (IRP_MJ_CREATE == IrpSp->MajorFunction)
    {
        /* only update statistics if we actually have a reference to the DeviceObject */
        if (DeviceDereference)
        {
            FSP_DEVICE_EXTENSION *DeviceExtension = FspDeviceExtension(DeviceObject);

            if (FspFsvolDeviceExtensionKind == FspDeviceExtension(DeviceObject)->Kind)
            {
                FSP_STATISTICS *Statistics = FspStatistics(
                    ((FSP_FSVOL_DEVICE_EXTENSION *)DeviceExtension)->Statistics);

                FspStatisticsInc(Statistics, Specific.CreateHits);
                if (STATUS_SUCCESS == Result)
                    FspStatisticsInc(Statistics, Specific.SuccessfulCreates);
                else
                    FspStatisticsInc(Statistics, Specific.FailedCreates);
            }
        }
    }

    if (STATUS_SUCCESS != Result &&
        STATUS_REPARSE != Result &&
        STATUS_OPLOCK_BREAK_IN_PROGRESS != Result &&
        STATUS_BUFFER_OVERFLOW != Result &&
        STATUS_SHARING_VIOLATION != Result)
        Irp->IoStatus.Information = 0;
    Irp->IoStatus.Status = Result;
    IoCompleteRequest(Irp, FSP_IO_INCREMENT);

    if (DeviceDereference)
        FspDeviceDereference(DeviceObject);
}

Exemple #2

Fichier : volinfo.c Projet : LucaBongiorni/winfsp

NTSTATUS FspSetVolumeInformation(
    PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
    FSP_ENTER_MJ(PAGED_CODE());

    switch (FspDeviceExtension(DeviceObject)->Kind)
    {
    case FspFsvolDeviceExtensionKind:
        FSP_RETURN(Result = FspFsvolSetVolumeInformation(DeviceObject, Irp, IrpSp));
    default:
        FSP_RETURN(Result = STATUS_INVALID_DEVICE_REQUEST);
    }

    FSP_LEAVE_MJ("%s",
        FsInformationClassSym(IrpSp->Parameters.SetVolume.FsInformationClass));
}

Exemple #3

Fichier : security.c Projet : LucaBongiorni/winfsp

NTSTATUS FspSetSecurity(
    PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
    FSP_ENTER_MJ(PAGED_CODE());

    switch (FspDeviceExtension(DeviceObject)->Kind)
    {
    case FspFsvolDeviceExtensionKind:
        FSP_RETURN(Result = FspFsvolSetSecurity(DeviceObject, Irp, IrpSp));
    default:
        FSP_RETURN(Result = STATUS_INVALID_DEVICE_REQUEST);
    }

    FSP_LEAVE_MJ("FileObject=%p, SecurityInformation=%x",
        IrpSp->FileObject, IrpSp->Parameters.SetSecurity.SecurityInformation);
}

Exemple #4

Fichier : lockctl.c Projet : billziss-gh/winfsp

NTSTATUS FspLockControl(
    PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
    FSP_ENTER_MJ(PAGED_CODE());

    switch (FspDeviceExtension(DeviceObject)->Kind)
    {
    case FspFsvolDeviceExtensionKind:
        FSP_RETURN(Result = FspFsvolLockControl(DeviceObject, Irp, IrpSp));
    default:
        FSP_RETURN(Result = STATUS_INVALID_DEVICE_REQUEST);
    }

    FSP_LEAVE_MJ("FileObject=%p, "
        "Key=%#lx, ByteOffset=%#lx:%#lx, Length=%lld",
        IrpSp->FileObject,
        IrpSp->Parameters.LockControl.Key,
        IrpSp->Parameters.LockControl.ByteOffset.HighPart,
        IrpSp->Parameters.LockControl.ByteOffset.LowPart,
        IrpSp->Parameters.LockControl.Length->QuadPart);
}