drivers/fs/ext2/attr.c

   1 /*
   2  * COPYRIGHT:        See COPYING in the top level directory
   3  * PROJECT:          ReactOS kernel
   4  * FILE:             services/fs/ext2/attr.c
   5  * PURPOSE:          Set/Get file attributes support
   6  * PROGRAMMER:       David Welch (welch@cwcom.net)
   7  * UPDATE HISTORY:
   8  */
   9
  10 /* INCLUDES *****************************************************************/
  11
  12 #include <ddk/ntddk.h>
  13 #include <wchar.h>
  14 #include <string.h>
  15
  16 //#define NDEBUG
  17 #include <debug.h>
  18
  19 #include "ext2fs.h"
  20
  21 /* FUNCTIONS ****************************************************************/
  22
  23 NTSTATUS STDCALL
  24 Ext2SetInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp)
  25 {
  26    DPRINT("Ext2SetInformation(DeviceObject %x Irp %x)\n",DeviceObject,Irp);
  27
  28    Irp->IoStatus.Status = STATUS_NOT_IMPLEMENTED;
  29    Irp->IoStatus.Information = 0;
  30    IoCompleteRequest(Irp,
  31                      IO_NO_INCREMENT);
  32
  33    return(STATUS_UNSUCCESSFUL);
  34 }
  35
  36 NTSTATUS STDCALL
  37 Ext2QueryInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp)
  38 {
  39    NTSTATUS Status;
  40    PIO_STACK_LOCATION Param;
  41    PFILE_OBJECT FileObject;
  42    PDEVICE_EXTENSION DeviceExt;
  43    ULONG Length;
  44    PFILE_BASIC_INFORMATION PFileBasicInformation;
  45    PFILE_STANDARD_INFORMATION PFileStandardInformation;
  46    PFILE_INTERNAL_INFORMATION PFileInternalInformation;
  47    PFILE_EA_INFORMATION PFileEaInformation;
  48    PFILE_ACCESS_INFORMATION PFileAccessInformation;
  49    PFILE_NAME_INFORMATION PFileNameInformation;
  50    PFILE_POSITION_INFORMATION PFilePositionInformation;
  51    PVOID Buffer;
  52
  53    DPRINT("Ext2QueryInformation(DeviceObject %x Irp %x)\n", DeviceObject, Irp);
  54
  55    Param = IoGetCurrentIrpStackLocation(Irp);
  56    FileObject = Param->FileObject;
  57    DeviceExt = DeviceObject->DeviceExtension;
  58    Length = Param->Parameters.QueryFile.Length;
  59    Buffer = Irp->AssociatedIrp.SystemBuffer;
  60
  61    switch (Param->Parameters.QueryFile.FileInformationClass)
  62      {
  63       case FileDirectoryInformation:
  64       case FileFullDirectoryInformation:
  65       case FileBothDirectoryInformation:
  66         Status = STATUS_NOT_IMPLEMENTED;
  67         break;
  68
  69       case FileBasicInformation:
  70         PFileBasicInformation = (PFILE_BASIC_INFORMATION)Buffer;
  71         memset(PFileBasicInformation, 0, sizeof(FILE_BASIC_INFORMATION));
  72         Status = STATUS_SUCCESS;
  73         break;
  74
  75       case FileStandardInformation:
  76         PFileStandardInformation = (PFILE_STANDARD_INFORMATION)Buffer;
  77         memset(PFileStandardInformation, 0, sizeof(FILE_STANDARD_INFORMATION));
  78         Status = STATUS_SUCCESS;
  79         break;
  80
  81       case FileInternalInformation:
  82         PFileInternalInformation = (PFILE_INTERNAL_INFORMATION)Buffer;
  83         memset(PFileInternalInformation, 0, sizeof(FILE_INTERNAL_INFORMATION));
  84         Status = STATUS_SUCCESS;
  85         break;
  86
  87       case FileEaInformation:
  88         PFileEaInformation = (PFILE_EA_INFORMATION)Buffer;
  89         memset(PFileEaInformation, 0, sizeof(FILE_EA_INFORMATION));
  90         PFileEaInformation->EaSize = 0;
  91         Status = STATUS_SUCCESS;
  92         break;
  93
  94       case FileAccessInformation:
  95         PFileAccessInformation = (PFILE_ACCESS_INFORMATION)Buffer;
  96         memset(PFileAccessInformation, 0, sizeof(FILE_ACCESS_INFORMATION));
  97         PFileAccessInformation->AccessFlags = 0;
  98         Status = STATUS_SUCCESS;
  99         break;
 100
 101       case FileNameInformation:
 102         PFileNameInformation = (PFILE_NAME_INFORMATION)Buffer;
 103         memset(PFileNameInformation, 0, sizeof(FILE_NAME_INFORMATION));
 104         Status = STATUS_SUCCESS;
 105         break;
 106
 107       case FilePositionInformation:
 108         PFilePositionInformation = (PFILE_POSITION_INFORMATION)Buffer;
 109         memcpy(PFilePositionInformation,
 110                &FileObject->CurrentByteOffset,
 111                sizeof(FileObject->CurrentByteOffset));
 112         Status = STATUS_SUCCESS;
 113         break;
 114
 115       case FileRenameInformation:
 116         Status = STATUS_NOT_IMPLEMENTED;
 117         break;
 118
 119       default:
 120         Status = STATUS_NOT_SUPPORTED;
 121      }
 122
 123
 124
 125
 126    Irp->IoStatus.Status = Status;
 127    if (NT_SUCCESS(Status))
 128      Irp->IoStatus.Information =
 129        Param->Parameters.QueryFile.Length - Length;
 130    else
 131      Irp->IoStatus.Information = 0;
 132    IoCompleteRequest(Irp,
 133                      IO_NO_INCREMENT);
 134
 135    return(Status);
 136 }