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- Improved removable media support.

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svn path=/trunk/; revision=9839
This commit is contained in:
Hartmut Birr 2004-06-23 20:23:59 +00:00
parent 83f7c0f126
commit b8b9f846b6
3 changed files with 92 additions and 58 deletions
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81
reactos/drivers/fs/vfat/create.c
View file

@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: create.c,v 1.67 2004/03/31 03:30:36 jimtabor Exp $
/* $Id: create.c,v 1.68 2004/06/23 20:23:59 hbirr Exp $
*
* PROJECT: ReactOS kernel
* FILE: drivers/fs/vfat/create.c
@ -338,11 +338,11 @@ VfatOpenFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject,
{
PVFATFCB ParentFcb;
PVFATFCB Fcb;
DISK_GEOMETRY DiskGeometry;
NTSTATUS Status;
UNICODE_STRING NameU;
WCHAR Name[MAX_PATH];
ULONG Size;
ULONG MediaChangeCount;
// PDEVICE_OBJECT DeviceObject = DeviceExt->StorageDevice->Vpb->DeviceObject;
@ -370,50 +370,41 @@ VfatOpenFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject,
DPRINT ("PathName to open: '%wZ'\n", FileNameU);
Size = sizeof(DISK_GEOMETRY);
Status = VfatBlockDeviceIoControl(DeviceExt->StorageDevice,
IOCTL_DISK_GET_DRIVE_GEOMETRY,
NULL,
0,
&DiskGeometry,
&Size,
FALSE);
if (DiskGeometry.MediaType != FixedMedia )
{
Status = VfatBlockDeviceIoControl (DeviceExt->StorageDevice,
IOCTL_DISK_CHECK_VERIFY,
NULL,
0,
NULL,
0,
TRUE);
if (Status == STATUS_VERIFY_REQUIRED)
{
PDEVICE_OBJECT DeviceToVerify;
DPRINT ("Media change detected!\n");
DPRINT ("Device %p\n", DeviceObject);
DeviceToVerify = IoGetDeviceToVerify (PsGetCurrentThread ());
IoSetDeviceToVerify (PsGetCurrentThread (),
NULL);
Status = IoVerifyVolume (DeviceToVerify,
FALSE);
if (!NT_SUCCESS(Status))
{
DPRINT ("Status %lx\n", Status);
return Status;
}
}
else if (!NT_SUCCESS(Status))
if (!DeviceExt->FatInfo.FixedMedia)
{
DPRINT ("Status %lx\n", Status);
return Status;
}
Size = sizeof(ULONG);
Status = VfatBlockDeviceIoControl (DeviceExt->StorageDevice,
IOCTL_DISK_CHECK_VERIFY,
NULL,
0,
&MediaChangeCount,
&Size,
FALSE);
if (Status == STATUS_VERIFY_REQUIRED || MediaChangeCount != DeviceExt->MediaChangeCount)
{
PDEVICE_OBJECT DeviceToVerify;
DPRINT ("Media change detected!\n");
DPRINT ("Device %p\n", DeviceExt->StorageDevice);
DeviceToVerify = IoGetDeviceToVerify (PsGetCurrentThread ());
IoSetDeviceToVerify (PsGetCurrentThread (),
NULL);
Status = IoVerifyVolume (DeviceToVerify,
FALSE);
if (!NT_SUCCESS(Status))
{
DPRINT ("Status %lx\n", Status);
return Status;
}
}
else if (!NT_SUCCESS(Status))
{
DPRINT ("Status %lx\n", Status);
return Status;
}
}

63
reactos/drivers/fs/vfat/fsctl.c
View file

@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: fsctl.c,v 1.31 2004/06/20 09:52:58 navaraf Exp $
/* $Id: fsctl.c,v 1.32 2004/06/23 20:23:59 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -31,7 +31,7 @@
#include <rosrtl/string.h>
#include <wchar.h>
//#define NDEBUG
#define NDEBUG
#include <debug.h>
#include "vfat.h"
@ -74,6 +74,7 @@ VfatHasFileSystem(PDEVICE_OBJECT DeviceToMount,
DPRINT("VfatBlockDeviceIoControl faild (%x)\n", Status);
return Status;
}
FatInfo.FixedMedia = DiskGeometry.MediaType == FixedMedia ? TRUE : FALSE;
if (DiskGeometry.MediaType == FixedMedia || DiskGeometry.MediaType == RemovableMedia)
{
// We have found a hard disk
@ -274,6 +275,7 @@ VfatMountDevice(PDEVICE_EXTENSION DeviceExt,
{
NTSTATUS Status;
BOOLEAN RecognizedFS;
ULONG Size;
DPRINT("Mounting VFAT device...\n");
@ -284,6 +286,22 @@ VfatMountDevice(PDEVICE_EXTENSION DeviceExt,
}
DPRINT("MountVfatdev %d, PAGE_SIZE = %d\n", DeviceExt->FatInfo.BytesPerCluster, PAGE_SIZE);
if (!DeviceExt->FatInfo.FixedMedia)
{
Size = sizeof(ULONG);
Status = VfatBlockDeviceIoControl (DeviceToMount,
IOCTL_DISK_CHECK_VERIFY,
NULL,
0,
&DeviceExt->MediaChangeCount,
&Size,
FALSE);
if (!NT_SUCCESS(Status))
{
return Status;
}
}
return(STATUS_SUCCESS);
}
@ -478,29 +496,50 @@ VfatVerify (PVFAT_IRP_CONTEXT IrpContext)
{
PDEVICE_OBJECT DeviceToVerify;
NTSTATUS Status = STATUS_SUCCESS;
FATINFO FatInfo;
BOOLEAN RecognizedFS;
ULONG Size;
PDEVICE_EXTENSION DeviceExt = IrpContext->DeviceExt;
DPRINT("VfatVerify(IrpContext %x)\n", IrpContext);
DeviceToVerify = IrpContext->Stack->Parameters.VerifyVolume.DeviceObject;
Size = sizeof(ULONG);
Status = VfatBlockDeviceIoControl(DeviceToVerify,
IOCTL_DISK_CHECK_VERIFY,
NULL,
0,
NULL,
NULL,
&DeviceExt->MediaChangeCount,
&Size,
FALSE);
if (!NT_SUCCESS(Status))
if (!NT_SUCCESS(Status) && Status != STATUS_VERIFY_REQUIRED)
{
DPRINT("VfatBlockDeviceIoControl() failed (Status %lx)\n", Status);
/* FIXME: Compare volume label */
DPRINT(" returning STATUS_WRONG_VOLUME\n");
Status = STATUS_WRONG_VOLUME;
}
DeviceToVerify->Flags &= ~DO_VERIFY_VOLUME;
else
{
Status = VfatHasFileSystem(DeviceToVerify, &RecognizedFS, &FatInfo);
if (!NT_SUCCESS(Status) || RecognizedFS == FALSE)
{
Status = STATUS_WRONG_VOLUME;
}
else if (sizeof(FATINFO) == RtlCompareMemory(&FatInfo, &DeviceExt->FatInfo, sizeof(FATINFO)))
{
/*
* FIXME:
* Preformated floppy disks have very often a serial number of 0000:0000.
* We should calculate a crc sum over the sectors from the root directory as secondary volume number.
* Each write to the root directory must update this crc sum.
*/
DeviceToVerify->Flags &= ~DO_VERIFY_VOLUME;
}
else
{
Status = STATUS_WRONG_VOLUME;
}
}
return Status;
}

6
reactos/drivers/fs/vfat/vfat.h
View file

@ -1,4 +1,4 @@
/* $Id: vfat.h,v 1.63 2004/05/15 23:00:02 hbirr Exp $ */
/* $Id: vfat.h,v 1.64 2004/06/23 20:23:59 hbirr Exp $ */
#include <ddk/ntifs.h>
@ -129,6 +129,7 @@ typedef struct
ULONG NumberOfClusters;
ULONG FatType;
ULONG Sectors;
BOOL FixedMedia;
} FATINFO, *PFATINFO;
struct _VFATFCB;
@ -162,6 +163,9 @@ typedef struct
struct _VFATFCB * VolumeFcb;
LIST_ENTRY VolumeListEntry;
ULONG MediaChangeCount;
} DEVICE_EXTENSION, *PDEVICE_EXTENSION, VCB, *PVCB;
typedef struct