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