drivers/fs/cdfs/cdfs.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2002 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:             services/fs/cdfs/cdfs.c
  24  * PURPOSE:          CDROM (ISO 9660) filesystem driver
  25  * PROGRAMMER:       Art Yerkes
  26  * UPDATE HISTORY:
  27  */
  28
  29 /* INCLUDES *****************************************************************/
  30
  31 #include <ddk/ntddk.h>
  32
  33 #define NDEBUG
  34 #include <debug.h>
  35
  36 #include "cdfs.h"
  37
  38
  39 /* GLOBALS *****************************************************************/
  40
  41 PCDFS_GLOBAL_DATA CdfsGlobalData;
  42
  43
  44 /* FUNCTIONS ****************************************************************/
  45
  46 NTSTATUS STDCALL
  47 DriverEntry(PDRIVER_OBJECT DriverObject,
  48             PUNICODE_STRING RegistryPath)
  49 /*
  50  * FUNCTION: Called by the system to initalize the driver
  51  * ARGUMENTS:
  52  *           DriverObject = object describing this driver
  53  *           RegistryPath = path to our configuration entries
  54  * RETURNS: Success or failure
  55  */
  56 {
  57   PDEVICE_OBJECT DeviceObject;
  58   NTSTATUS Status;
  59   UNICODE_STRING DeviceName = UNICODE_STRING_INITIALIZER(L"\\Cdfs");
  60
  61   DPRINT("CDFS 0.0.2\n");
  62
  63   Status = IoCreateDevice(DriverObject,
  64                           sizeof(CDFS_GLOBAL_DATA),
  65                           &DeviceName,
  66                           FILE_DEVICE_CD_ROM_FILE_SYSTEM,
  67                           0,
  68                           FALSE,
  69                           &DeviceObject);
  70   if (!NT_SUCCESS(Status))
  71     {
  72       return(Status);
  73     }
  74
  75   /* Initialize global data */
  76   CdfsGlobalData = DeviceObject->DeviceExtension;
  77   RtlZeroMemory(CdfsGlobalData,
  78                 sizeof(CDFS_GLOBAL_DATA));
  79   CdfsGlobalData->DriverObject = DriverObject;
  80   CdfsGlobalData->DeviceObject = DeviceObject;
  81
  82   /* Initialize driver data */
  83   DeviceObject->Flags = DO_DIRECT_IO;
  84   DriverObject->MajorFunction[IRP_MJ_CLOSE] = CdfsClose;
  85   DriverObject->MajorFunction[IRP_MJ_CLEANUP] = CdfsCleanup;
  86   DriverObject->MajorFunction[IRP_MJ_CREATE] = CdfsCreate;
  87   DriverObject->MajorFunction[IRP_MJ_READ] = CdfsRead;
  88   DriverObject->MajorFunction[IRP_MJ_WRITE] = CdfsWrite;
  89   DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
  90     CdfsFileSystemControl;
  91   DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
  92     CdfsDirectoryControl;
  93   DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] =
  94     CdfsQueryInformation;
  95   DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] =
  96     CdfsSetInformation;
  97   DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] =
  98     CdfsQueryVolumeInformation;
  99   DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] =
 100     CdfsSetVolumeInformation;
 101
 102   DriverObject->DriverUnload = NULL;
 103
 104   IoRegisterFileSystem(DeviceObject);
 105
 106   return(STATUS_SUCCESS);
 107 }
 108