drivers/network/ndisuio/createclose.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS NDIS User I/O driver
   4  * FILE:        createclose.c
   5  * PURPOSE:     IRP_MJ_CREATE and IRP_MJ_CLOSE handling
   6  * PROGRAMMERS: Cameron Gutman (cameron.gutman@reactos.org)
   7  */
   8
   9 #include "ndisuio.h"
  10
  11 #define NDEBUG
  12 #include <debug.h>
  13
  14 NTSTATUS
  15 NTAPI
  16 NduDispatchCreate(PDEVICE_OBJECT DeviceObject,
  17                   PIRP Irp)
  18 {
  19     PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
  20
  21     ASSERT(DeviceObject == GlobalDeviceObject);
  22
  23     /* This is associated with an adapter during IOCTL_NDISUIO_OPEN_(WRITE_)DEVICE */
  24     IrpSp->FileObject->FsContext = NULL;
  25     IrpSp->FileObject->FsContext2 = NULL;
  26
  27     /* Completed successfully */
  28     Irp->IoStatus.Status = STATUS_SUCCESS;
  29     Irp->IoStatus.Information = FILE_OPENED;
  30     IoCompleteRequest(Irp, IO_NO_INCREMENT);
  31
  32     /* Return success */
  33     return STATUS_SUCCESS;
  34 }
  35
  36 NTSTATUS
  37 NTAPI
  38 NduDispatchClose(PDEVICE_OBJECT DeviceObject,
  39                  PIRP Irp)
  40 {
  41     PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
  42     PNDISUIO_ADAPTER_CONTEXT AdapterContext = IrpSp->FileObject->FsContext;
  43     PNDISUIO_OPEN_ENTRY OpenEntry = IrpSp->FileObject->FsContext2;
  44
  45     ASSERT(DeviceObject == GlobalDeviceObject);
  46
  47     /* Check if this handle was ever associated with an adapter */
  48     if (AdapterContext != NULL)
  49     {
  50         ASSERT(OpenEntry != NULL);
  51
  52         /* Call the our helper */
  53         DereferenceAdapterContextWithOpenEntry(AdapterContext, OpenEntry);
  54     }
  55
  56     /* Completed */
  57     Irp->IoStatus.Status = STATUS_SUCCESS;
  58     Irp->IoStatus.Information = 0;
  59     IoCompleteRequest(Irp, IO_NO_INCREMENT);
  60
  61     /* Return success */
  62     return STATUS_SUCCESS;
  63 }