reactos/drivers/fs/vfat/iface.c

   1 /* $Id: iface.c,v 1.62 2002/03/18 22:37:12 hbirr Exp $
   2  *
   3  * COPYRIGHT:        See COPYING in the top level directory
   4  * PROJECT:          ReactOS kernel
   5  * FILE:             services/fs/vfat/iface.c
   6  * PURPOSE:          VFAT Filesystem
   7  * PROGRAMMER:       Jason Filby (jasonfilby@yahoo.com)
   8  * UPDATE HISTORY:
   9  *    ??           Created
  10  *   24-10-1998   Fixed bugs in long filename support
  11  *                Fixed a bug that prevented unsuccessful file open requests
  12  *                being reported
  13  *                Now works with long filenames that span over a sector
  14  *                boundary
  15  *   28-10-1998   Reads entire FAT into memory
  16  *                VFatReadSector modified to read in more than one sector at a
  17  *                time
  18  *   7-11-1998    Fixed bug that assumed that directory data could be
  19  *                fragmented
  20  *   8-12-1998    Added FAT32 support
  21  *                Added initial writability functions
  22  *                WARNING: DO NOT ATTEMPT TO TEST WRITABILITY FUNCTIONS!!!
  23  *   12-12-1998   Added basic support for FILE_STANDARD_INFORMATION request
  24  *
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include <ddk/ntddk.h>
  30
  31 #define NDEBUG
  32 #include <debug.h>
  33
  34 #include "vfat.h"
  35
  36 /* GLOBALS *****************************************************************/
  37
  38
  39 PVFAT_GLOBAL_DATA VfatGlobalData;
  40
  41 /* FUNCTIONS ****************************************************************/
  42
  43 NTSTATUS STDCALL
  44 DriverEntry(PDRIVER_OBJECT DriverObject,
  45             PUNICODE_STRING RegistryPath)
  46 /*
  47  * FUNCTION: Called by the system to initalize the driver
  48  * ARGUMENTS:
  49  *           DriverObject = object describing this driver
  50  *           RegistryPath = path to our configuration entries
  51  * RETURNS: Success or failure
  52  */
  53 {
  54    PDEVICE_OBJECT DeviceObject;
  55    UNICODE_STRING DeviceName;
  56    NTSTATUS Status;
  57
  58    DPRINT("VFAT 0.0.6\n");
  59
  60    RtlInitUnicodeString(&DeviceName,
  61                         L"\\Device\\Vfat");
  62    Status = IoCreateDevice(DriverObject,
  63                            sizeof(VFAT_GLOBAL_DATA),
  64                            &DeviceName,
  65                            FILE_DEVICE_DISK_FILE_SYSTEM,
  66                            0,
  67                            FALSE,
  68                            &DeviceObject);
  69    if (!NT_SUCCESS(Status))
  70      {
  71         return (Status);
  72      }
  73    VfatGlobalData = DeviceObject->DeviceExtension;
  74    RtlZeroMemory (VfatGlobalData, sizeof(VFAT_GLOBAL_DATA));
  75    VfatGlobalData->DriverObject = DriverObject;
  76    VfatGlobalData->DeviceObject = DeviceObject;
  77
  78    DeviceObject->Flags = DO_DIRECT_IO;
  79    DriverObject->MajorFunction[IRP_MJ_CLOSE] = VfatBuildRequest;
  80    DriverObject->MajorFunction[IRP_MJ_CREATE] = VfatBuildRequest;
  81    DriverObject->MajorFunction[IRP_MJ_READ] = VfatBuildRequest;
  82    DriverObject->MajorFunction[IRP_MJ_WRITE] = VfatBuildRequest;
  83    DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = VfatBuildRequest;
  84    DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = VfatBuildRequest;
  85    DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = VfatBuildRequest;
  86    DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = VfatBuildRequest;
  87    DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = VfatBuildRequest;
  88    DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = VfatBuildRequest;
  89    DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = VfatShutdown;
  90    DriverObject->MajorFunction[IRP_MJ_CLEANUP] = VfatBuildRequest;
  91
  92    DriverObject->DriverUnload = NULL;
  93
  94    IoRegisterFileSystem(DeviceObject);
  95    return STATUS_SUCCESS;
  96 }
  97
  98 /* EOF */
  99