reactos/drivers/fs/cdfs/cdfs.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2002, 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$
  20  *
  21  * COPYRIGHT:        See COPYING in the top level directory
  22  * PROJECT:          ReactOS kernel
  23  * FILE:             drivers/fs/cdfs/cdfs.c
  24  * PURPOSE:          CDROM (ISO 9660) filesystem driver
  25  * PROGRAMMER:       Art Yerkes
  26  *                   Eric Kohl
  27  */
  28
  29 /* INCLUDES *****************************************************************/
  30
  31 #include <ddk/ntddk.h>
  32 #include <rosrtl/string.h>
  33
  34 #define NDEBUG
  35 #include <debug.h>
  36
  37 #include "cdfs.h"
  38
  39
  40 /* GLOBALS *****************************************************************/
  41
  42 PCDFS_GLOBAL_DATA CdfsGlobalData;
  43
  44
  45 /* FUNCTIONS ****************************************************************/
  46
  47 NTSTATUS STDCALL
  48 DriverEntry(PDRIVER_OBJECT DriverObject,
  49             PUNICODE_STRING RegistryPath)
  50 /*
  51  * FUNCTION: Called by the system to initalize the driver
  52  * ARGUMENTS:
  53  *           DriverObject = object describing this driver
  54  *           RegistryPath = path to our configuration entries
  55  * RETURNS: Success or failure
  56  */
  57 {
  58   PDEVICE_OBJECT DeviceObject;
  59   NTSTATUS Status;
  60   UNICODE_STRING DeviceName = ROS_STRING_INITIALIZER(L"\\Cdfs");
  61
  62   DPRINT("CDFS 0.0.3\n");
  63
  64   Status = IoCreateDevice(DriverObject,
  65                           sizeof(CDFS_GLOBAL_DATA),
  66                           &DeviceName,
  67                           FILE_DEVICE_CD_ROM_FILE_SYSTEM,
  68                           0,
  69                           FALSE,
  70                           &DeviceObject);
  71   if (!NT_SUCCESS(Status))
  72     {
  73       return(Status);
  74     }
  75
  76   /* Initialize global data */
  77   CdfsGlobalData = DeviceObject->DeviceExtension;
  78   RtlZeroMemory(CdfsGlobalData,
  79                 sizeof(CDFS_GLOBAL_DATA));
  80   CdfsGlobalData->DriverObject = DriverObject;
  81   CdfsGlobalData->DeviceObject = DeviceObject;
  82
  83   /* Initialize driver data */
  84   DeviceObject->Flags = DO_DIRECT_IO;
  85   DriverObject->MajorFunction[IRP_MJ_CLOSE] = CdfsClose;
  86   DriverObject->MajorFunction[IRP_MJ_CLEANUP] = CdfsCleanup;
  87   DriverObject->MajorFunction[IRP_MJ_CREATE] = CdfsCreate;
  88   DriverObject->MajorFunction[IRP_MJ_READ] = CdfsRead;
  89   DriverObject->MajorFunction[IRP_MJ_WRITE] = CdfsWrite;
  90   DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
  91     CdfsFileSystemControl;
  92   DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
  93     CdfsDirectoryControl;
  94   DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] =
  95     CdfsQueryInformation;
  96   DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] =
  97     CdfsSetInformation;
  98   DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] =
  99     CdfsQueryVolumeInformation;
 100   DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] =
 101     CdfsSetVolumeInformation;
 102
 103   DriverObject->DriverUnload = NULL;
 104
 105   IoRegisterFileSystem(DeviceObject);
 106
 107   return(STATUS_SUCCESS);
 108 }
 109