3 * Copyright (C) 2002 ReactOS Team
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.
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.
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.
19 * COPYRIGHT: See COPYING in the top level directory
20 * PROJECT: ReactOS kernel
21 * FILE: drivers/filesystem/ntfs/volume.c
22 * PURPOSE: NTFS filesystem driver
23 * PROGRAMMER: Eric Kohl
26 /* INCLUDES *****************************************************************/
33 /* FUNCTIONS ****************************************************************/
36 NtfsGetFsVolumeInformation(PDEVICE_OBJECT DeviceObject
,
37 PFILE_FS_VOLUME_INFORMATION FsVolumeInfo
,
40 DPRINT("NtfsGetFsVolumeInformation() called\n");
41 DPRINT("FsVolumeInfo = %p\n", FsVolumeInfo
);
42 DPRINT("BufferLength %lu\n", *BufferLength
);
44 DPRINT("Vpb %p\n", DeviceObject
->Vpb
);
46 DPRINT("Required length %lu\n",
47 sizeof(FILE_FS_VOLUME_INFORMATION
) + DeviceObject
->Vpb
->VolumeLabelLength
);
48 DPRINT("LabelLength %hu\n",
49 DeviceObject
->Vpb
->VolumeLabelLength
);
50 DPRINT("Label %*.S\n",
51 DeviceObject
->Vpb
->VolumeLabelLength
/ sizeof(WCHAR
),
52 DeviceObject
->Vpb
->VolumeLabel
);
54 if (*BufferLength
< sizeof(FILE_FS_VOLUME_INFORMATION
))
55 return STATUS_INFO_LENGTH_MISMATCH
;
57 if (*BufferLength
< (sizeof(FILE_FS_VOLUME_INFORMATION
) + DeviceObject
->Vpb
->VolumeLabelLength
))
58 return STATUS_BUFFER_OVERFLOW
;
61 FsVolumeInfo
->VolumeSerialNumber
= DeviceObject
->Vpb
->SerialNumber
;
62 FsVolumeInfo
->VolumeLabelLength
= DeviceObject
->Vpb
->VolumeLabelLength
;
63 memcpy(FsVolumeInfo
->VolumeLabel
,
64 DeviceObject
->Vpb
->VolumeLabel
,
65 DeviceObject
->Vpb
->VolumeLabelLength
);
68 FsVolumeInfo
->VolumeCreationTime
.QuadPart
= 0;
69 FsVolumeInfo
->SupportsObjects
= FALSE
;
71 *BufferLength
-= (sizeof(FILE_FS_VOLUME_INFORMATION
) + DeviceObject
->Vpb
->VolumeLabelLength
);
73 DPRINT("BufferLength %lu\n", *BufferLength
);
74 DPRINT("NtfsGetFsVolumeInformation() done\n");
76 return STATUS_SUCCESS
;
81 NtfsGetFsAttributeInformation(PDEVICE_EXTENSION DeviceExt
,
82 PFILE_FS_ATTRIBUTE_INFORMATION FsAttributeInfo
,
85 DPRINT("NtfsGetFsAttributeInformation()\n");
86 DPRINT("FsAttributeInfo = %p\n", FsAttributeInfo
);
87 DPRINT("BufferLength %lu\n", *BufferLength
);
88 DPRINT("Required length %lu\n", (sizeof(FILE_FS_ATTRIBUTE_INFORMATION
) + 8));
90 if (*BufferLength
< sizeof (FILE_FS_ATTRIBUTE_INFORMATION
))
91 return(STATUS_INFO_LENGTH_MISMATCH
);
93 if (*BufferLength
< (sizeof(FILE_FS_ATTRIBUTE_INFORMATION
) + 8))
94 return(STATUS_BUFFER_OVERFLOW
);
96 FsAttributeInfo
->FileSystemAttributes
=
97 FILE_CASE_PRESERVED_NAMES
| FILE_UNICODE_ON_DISK
;
98 FsAttributeInfo
->MaximumComponentNameLength
= 255;
99 FsAttributeInfo
->FileSystemNameLength
= 8;
101 memcpy(FsAttributeInfo
->FileSystemName
, L
"NTFS", 8);
103 DPRINT("Finished NtfsGetFsAttributeInformation()\n");
105 *BufferLength
-= (sizeof(FILE_FS_ATTRIBUTE_INFORMATION
) + 8);
106 DPRINT("BufferLength %lu\n", *BufferLength
);
108 return(STATUS_SUCCESS
);
113 NtfsGetFsSizeInformation(PDEVICE_OBJECT DeviceObject
,
114 PFILE_FS_SIZE_INFORMATION FsSizeInfo
,
117 PDEVICE_EXTENSION DeviceExt
;
118 NTSTATUS Status
= STATUS_SUCCESS
;
120 DPRINT("NtfsGetFsSizeInformation()\n");
121 DPRINT("FsSizeInfo = %p\n", FsSizeInfo
);
123 if (*BufferLength
< sizeof(FILE_FS_SIZE_INFORMATION
))
124 return(STATUS_BUFFER_OVERFLOW
);
126 DeviceExt
= DeviceObject
->DeviceExtension
;
128 FsSizeInfo
->AvailableAllocationUnits
.QuadPart
= 0;
129 FsSizeInfo
->TotalAllocationUnits
.QuadPart
= DeviceExt
->NtfsInfo
.SectorCount
; /* ?? */
130 FsSizeInfo
->SectorsPerAllocationUnit
= DeviceExt
->NtfsInfo
.SectorsPerCluster
;
131 FsSizeInfo
->BytesPerSector
= DeviceExt
->NtfsInfo
.BytesPerSector
;
133 DPRINT("Finished NtfsGetFsSizeInformation()\n");
134 if (NT_SUCCESS(Status
))
135 *BufferLength
-= sizeof(FILE_FS_SIZE_INFORMATION
);
142 NtfsGetFsDeviceInformation(PFILE_FS_DEVICE_INFORMATION FsDeviceInfo
,
145 DPRINT("NtfsGetFsDeviceInformation()\n");
146 DPRINT("FsDeviceInfo = %p\n", FsDeviceInfo
);
147 DPRINT("BufferLength %lu\n", *BufferLength
);
148 DPRINT("Required length %lu\n", sizeof(FILE_FS_DEVICE_INFORMATION
));
150 if (*BufferLength
< sizeof(FILE_FS_DEVICE_INFORMATION
))
151 return(STATUS_BUFFER_OVERFLOW
);
153 FsDeviceInfo
->DeviceType
= FILE_DEVICE_DISK
;
154 FsDeviceInfo
->Characteristics
= 0; /* FIXME: fix this !! */
156 DPRINT("NtfsGetFsDeviceInformation() finished.\n");
158 *BufferLength
-= sizeof(FILE_FS_DEVICE_INFORMATION
);
159 DPRINT("BufferLength %lu\n", *BufferLength
);
161 return(STATUS_SUCCESS
);
167 NtfsQueryVolumeInformation(PNTFS_IRP_CONTEXT IrpContext
)
170 PDEVICE_OBJECT DeviceObject
;
171 FS_INFORMATION_CLASS FsInformationClass
;
172 PIO_STACK_LOCATION Stack
;
173 NTSTATUS Status
= STATUS_SUCCESS
;
177 DPRINT("NtfsQueryVolumeInformation() called\n");
181 Irp
= IrpContext
->Irp
;
182 DeviceObject
= IrpContext
->DeviceObject
;
183 Stack
= IoGetCurrentIrpStackLocation(Irp
);
184 FsInformationClass
= Stack
->Parameters
.QueryVolume
.FsInformationClass
;
185 BufferLength
= Stack
->Parameters
.QueryVolume
.Length
;
186 SystemBuffer
= Irp
->AssociatedIrp
.SystemBuffer
;
187 RtlZeroMemory(SystemBuffer
, BufferLength
);
189 DPRINT("FsInformationClass %d\n", FsInformationClass
);
190 DPRINT("SystemBuffer %p\n", SystemBuffer
);
192 switch (FsInformationClass
)
194 case FileFsVolumeInformation
:
195 Status
= NtfsGetFsVolumeInformation(DeviceObject
,
200 case FileFsAttributeInformation
:
201 Status
= NtfsGetFsAttributeInformation(DeviceObject
->DeviceExtension
,
206 case FileFsSizeInformation
:
207 Status
= NtfsGetFsSizeInformation(DeviceObject
,
212 case FileFsDeviceInformation
:
213 Status
= NtfsGetFsDeviceInformation(SystemBuffer
,
218 Status
= STATUS_NOT_SUPPORTED
;
221 if (NT_SUCCESS(Status
))
222 Irp
->IoStatus
.Information
=
223 Stack
->Parameters
.QueryVolume
.Length
- BufferLength
;
225 Irp
->IoStatus
.Information
= 0;
232 NtfsSetVolumeInformation(PNTFS_IRP_CONTEXT IrpContext
)
236 DPRINT("NtfsSetVolumeInformation() called\n");
240 Irp
= IrpContext
->Irp
;
241 Irp
->IoStatus
.Status
= STATUS_NOT_SUPPORTED
;
242 Irp
->IoStatus
.Information
= 0;
244 return STATUS_NOT_SUPPORTED
;