drivers/serial/serial/create.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         Serial port driver
   4  * FILE:            drivers/dd/serial/create.c
   5  * PURPOSE:         Serial IRP_MJ_CREATE operations
   6  *
   7  * PROGRAMMERS:     Hervé Poussineau (hpoussin@reactos.org)
   8  */
   9
  10 #include "serial.h"
  11
  12 NTSTATUS NTAPI
  13 SerialCreate(
  14         IN PDEVICE_OBJECT DeviceObject,
  15         IN PIRP Irp)
  16 {
  17         PIO_STACK_LOCATION Stack;
  18         PSERIAL_DEVICE_EXTENSION DeviceExtension;
  19         NTSTATUS Status;
  20
  21         TRACE_(SERIAL, "IRP_MJ_CREATE\n");
  22         Stack = IoGetCurrentIrpStackLocation(Irp);
  23         DeviceExtension = (PSERIAL_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  24
  25         if (Stack->Parameters.Create.Options & FILE_DIRECTORY_FILE)
  26         {
  27                 INFO_(SERIAL, "Not a directory\n");
  28                 Status = STATUS_NOT_A_DIRECTORY;
  29                 goto ByeBye;
  30         }
  31
  32         if(DeviceExtension->IsOpened)
  33         {
  34                 WARN_(SERIAL, "COM%lu is already opened\n", DeviceExtension->ComPort);
  35                 Status = STATUS_ACCESS_DENIED;
  36                 goto ByeBye;
  37         }
  38
  39         INFO_(SERIAL, "Open COM%lu: successfull\n", DeviceExtension->ComPort);
  40         DeviceExtension->IsOpened = TRUE;
  41         Status = STATUS_SUCCESS;
  42
  43 ByeBye:
  44         Irp->IoStatus.Status = Status;
  45         Irp->IoStatus.Information = 0;
  46         IoCompleteRequest(Irp, IO_NO_INCREMENT);
  47         return Status;
  48 }