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