drivers/filesystems/ntfs/finfo.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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
  18  *
  19  * COPYRIGHT:        See COPYING in the top level directory
  20  * PROJECT:          ReactOS kernel
  21  * FILE:             drivers/filesystem/ntfs/dirctl.c
  22  * PURPOSE:          NTFS filesystem driver
  23  * PROGRAMMER:       Eric Kohl
  24  */
  25
  26 /* INCLUDES *****************************************************************/
  27
  28 #include "ntfs.h"
  29
  30 #define NDEBUG
  31 #include <debug.h>
  32
  33 /* GLOBALS *****************************************************************/
  34
  35
  36 /* FUNCTIONS ****************************************************************/
  37
  38 /*
  39  * FUNCTION: Retrieve the standard file information
  40  */
  41 static
  42 NTSTATUS
  43 NtfsGetStandardInformation(PNTFS_FCB Fcb,
  44                            PDEVICE_OBJECT DeviceObject,
  45                            PFILE_STANDARD_INFORMATION StandardInfo,
  46                            PULONG BufferLength)
  47 {
  48     UNREFERENCED_PARAMETER(DeviceObject);
  49
  50     DPRINT("NtfsGetStandardInformation() called\n");
  51
  52     if (*BufferLength < sizeof(FILE_STANDARD_INFORMATION))
  53         return STATUS_BUFFER_OVERFLOW;
  54
  55     /* PRECONDITION */
  56     ASSERT(StandardInfo != NULL);
  57     ASSERT(Fcb != NULL);
  58
  59     RtlZeroMemory(StandardInfo,
  60                   sizeof(FILE_STANDARD_INFORMATION));
  61
  62     StandardInfo->AllocationSize = Fcb->RFCB.AllocationSize;
  63     StandardInfo->EndOfFile = Fcb->RFCB.FileSize;
  64     StandardInfo->NumberOfLinks = 0;
  65     StandardInfo->DeletePending = FALSE;
  66     StandardInfo->Directory = NtfsFCBIsDirectory(Fcb);
  67
  68     *BufferLength -= sizeof(FILE_STANDARD_INFORMATION);
  69
  70     return STATUS_SUCCESS;
  71 }
  72
  73
  74 static
  75 NTSTATUS
  76 NtfsGetPositionInformation(PFILE_OBJECT FileObject,
  77                            PFILE_POSITION_INFORMATION PositionInfo,
  78                            PULONG BufferLength)
  79 {
  80     UNREFERENCED_PARAMETER(FileObject);
  81
  82     DPRINT("NtfsGetPositionInformation() called\n");
  83
  84     if (*BufferLength < sizeof(FILE_POSITION_INFORMATION))
  85         return STATUS_BUFFER_OVERFLOW;
  86
  87     PositionInfo->CurrentByteOffset.QuadPart = 0;
  88 //    FileObject->CurrentByteOffset.QuadPart;
  89
  90     DPRINT("Getting position %I64x\n",
  91            PositionInfo->CurrentByteOffset.QuadPart);
  92
  93     *BufferLength -= sizeof(FILE_POSITION_INFORMATION);
  94
  95     return STATUS_SUCCESS;
  96 }
  97
  98
  99 static
 100 NTSTATUS
 101 NtfsGetBasicInformation(PFILE_OBJECT FileObject,
 102                         PNTFS_FCB Fcb,
 103                         PDEVICE_OBJECT DeviceObject,
 104                         PFILE_BASIC_INFORMATION BasicInfo,
 105                         PULONG BufferLength)
 106 {
 107     DPRINT("NtfsGetBasicInformation() called\n");
 108
 109     if (*BufferLength < sizeof(FILE_BASIC_INFORMATION))
 110         return STATUS_BUFFER_OVERFLOW;
 111
 112 #if 0
 113     CdfsDateTimeToFileTime(Fcb,
 114                            &BasicInfo->CreationTime);
 115     CdfsDateTimeToFileTime(Fcb,
 116                            &BasicInfo->LastAccessTime);
 117     CdfsDateTimeToFileTime(Fcb,
 118                            &BasicInfo->LastWriteTime);
 119     CdfsDateTimeToFileTime(Fcb,
 120                            &BasicInfo->ChangeTime);
 121
 122     CdfsFileFlagsToAttributes(Fcb,
 123                               &BasicInfo->FileAttributes);
 124 #else
 125     UNREFERENCED_PARAMETER(FileObject);
 126     UNREFERENCED_PARAMETER(Fcb);
 127     UNREFERENCED_PARAMETER(DeviceObject);
 128     UNREFERENCED_PARAMETER(BasicInfo);
 129 #endif
 130
 131     *BufferLength -= sizeof(FILE_BASIC_INFORMATION);
 132
 133     return STATUS_SUCCESS;
 134 }
 135
 136
 137 /*
 138  * FUNCTION: Retrieve the file name information
 139  */
 140 static
 141 NTSTATUS
 142 NtfsGetNameInformation(PFILE_OBJECT FileObject,
 143                        PNTFS_FCB Fcb,
 144                        PDEVICE_OBJECT DeviceObject,
 145                        PFILE_NAME_INFORMATION NameInfo,
 146                        PULONG BufferLength)
 147 {
 148     ULONG NameLength;
 149
 150     UNREFERENCED_PARAMETER(FileObject);
 151     UNREFERENCED_PARAMETER(DeviceObject);
 152
 153     DPRINT("NtfsGetNameInformation() called\n");
 154
 155     ASSERT(NameInfo != NULL);
 156     ASSERT(Fcb != NULL);
 157
 158     NameLength = wcslen(Fcb->PathName) * sizeof(WCHAR);
 159 //  NameLength = 2;
 160     if (*BufferLength < sizeof(FILE_NAME_INFORMATION) + NameLength)
 161         return STATUS_BUFFER_OVERFLOW;
 162
 163     NameInfo->FileNameLength = NameLength;
 164     memcpy(NameInfo->FileName,
 165            Fcb->PathName,
 166            NameLength + sizeof(WCHAR));
 167 //  wcscpy(NameInfo->FileName, L"\\");
 168
 169     *BufferLength -= (sizeof(FILE_NAME_INFORMATION) + NameLength + sizeof(WCHAR));
 170
 171     return STATUS_SUCCESS;
 172 }
 173
 174
 175 static
 176 NTSTATUS
 177 NtfsGetInternalInformation(PNTFS_FCB Fcb,
 178                            PFILE_INTERNAL_INFORMATION InternalInfo,
 179                            PULONG BufferLength)
 180 {
 181     DPRINT("NtfsGetInternalInformation() called\n");
 182
 183     ASSERT(InternalInfo);
 184     ASSERT(Fcb);
 185
 186     if (*BufferLength < sizeof(FILE_INTERNAL_INFORMATION))
 187         return STATUS_BUFFER_OVERFLOW;
 188
 189     /* FIXME: get a real index, that can be used in a create operation */
 190     InternalInfo->IndexNumber.QuadPart = 0;
 191
 192     *BufferLength -= sizeof(FILE_INTERNAL_INFORMATION);
 193
 194     return STATUS_SUCCESS;
 195 }
 196
 197
 198 /*
 199  * FUNCTION: Retrieve the specified file information
 200  */
 201 NTSTATUS
 202 NTAPI
 203 NtfsFsdQueryInformation(PDEVICE_OBJECT DeviceObject,
 204                         PIRP Irp)
 205 {
 206     FILE_INFORMATION_CLASS FileInformationClass;
 207     PIO_STACK_LOCATION Stack;
 208     PFILE_OBJECT FileObject;
 209     PNTFS_FCB Fcb;
 210     PVOID SystemBuffer;
 211     ULONG BufferLength;
 212     NTSTATUS Status = STATUS_SUCCESS;
 213
 214     DPRINT("NtfsQueryInformation() called\n");
 215
 216     Stack = IoGetCurrentIrpStackLocation(Irp);
 217     FileInformationClass = Stack->Parameters.QueryFile.FileInformationClass;
 218     FileObject = Stack->FileObject;
 219     Fcb = FileObject->FsContext;
 220
 221     SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
 222     BufferLength = Stack->Parameters.QueryFile.Length;
 223
 224     switch (FileInformationClass)
 225     {
 226         case FileStandardInformation:
 227             Status = NtfsGetStandardInformation(Fcb,
 228                                                 DeviceObject,
 229                                                 SystemBuffer,
 230                                                 &BufferLength);
 231             break;
 232
 233         case FilePositionInformation:
 234             Status = NtfsGetPositionInformation(FileObject,
 235                                                 SystemBuffer,
 236                                                 &BufferLength);
 237             break;
 238
 239         case FileBasicInformation:
 240             Status = NtfsGetBasicInformation(FileObject,
 241                                              Fcb,
 242                                              DeviceObject,
 243                                              SystemBuffer,
 244                                              &BufferLength);
 245             break;
 246
 247         case FileNameInformation:
 248             Status = NtfsGetNameInformation(FileObject,
 249                                       Fcb,
 250                                       DeviceObject,
 251                                       SystemBuffer,
 252                                       &BufferLength);
 253             break;
 254
 255         case FileInternalInformation:
 256             Status = NtfsGetInternalInformation(Fcb,
 257                                                 SystemBuffer,
 258                                                 &BufferLength);
 259             break;
 260
 261         case FileAlternateNameInformation:
 262         case FileAllInformation:
 263             Status = STATUS_NOT_IMPLEMENTED;
 264             break;
 265
 266         default:
 267             DPRINT("Unimplemented information class %u\n", FileInformationClass);
 268             Status = STATUS_INVALID_PARAMETER;
 269     }
 270
 271     Irp->IoStatus.Status = Status;
 272
 273     if (NT_SUCCESS(Status))
 274         Irp->IoStatus.Information =
 275             Stack->Parameters.QueryFile.Length - BufferLength;
 276     else
 277         Irp->IoStatus.Information = 0;
 278
 279     IoCompleteRequest(Irp, IO_NO_INCREMENT);
 280
 281     return Status;
 282 }
 283
 284 /* EOF */