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- Fix a misnamed var in fastfat.h.

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- Implement first part of FatMountVolume (before VCB initialization and actual read of a volume).

svn path=/trunk/; revision=38938
This commit is contained in:
Aleksey Bragin 2009-01-19 13:55:46 +00:00
parent c6c20dffb6
commit 65aefa88f2
2 changed files with 64 additions and 3 deletions
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2
reactos/drivers/filesystems/fastfat_new/fastfat.h
View file

@ -241,7 +241,7 @@ typedef struct _FAT_GLOBAL_DATA
CACHE_MANAGER_CALLBACKS CacheMgrNoopCallbacks;
} FAT_GLOBAL_DATA, *VFAT_GLOBAL_DATA;
extern VFAT_GLOBAL_DATA VfatGlobalData;
extern FAT_GLOBAL_DATA FatGlobalData;
/* FCB flags */
#define FCB_CACHE_INITIALIZED 0x0001

65
reactos/drivers/filesystems/fastfat_new/fsctl.c
View file

@ -31,6 +31,22 @@ FatVerifyVolume(PFAT_IRP_CONTEXT IrpContext, PIRP Irp)
return STATUS_INVALID_DEVICE_REQUEST;
}
VOID
NTAPI
FatiCleanVcbs(PFAT_IRP_CONTEXT IrpContext)
{
/* Make sure this IRP is waitable */
ASSERT(IrpContext->Flags & IRPCONTEXT_CANWAIT);
/* Acquire global resource */
ExAcquireResourceExclusiveLite(&FatGlobalData.Resource, TRUE);
/* TODO: Go through all VCBs and delete unmounted ones */
/* Release global resource */
ExReleaseResourceLite(&FatGlobalData.Resource);
}
NTSTATUS
NTAPI
FatMountVolume(PFAT_IRP_CONTEXT IrpContext,
@ -38,10 +54,55 @@ FatMountVolume(PFAT_IRP_CONTEXT IrpContext,
PVPB Vpb,
PDEVICE_OBJECT FsDeviceObject)
{
NTSTATUS Status;
PVOLUME_DEVICE_OBJECT VolumeDevice;
DPRINT1("FatMountVolume()\n");
FatCompleteRequest(IrpContext, IrpContext->Irp, STATUS_INVALID_DEVICE_REQUEST);
return STATUS_INVALID_DEVICE_REQUEST;
/* Make sure this IRP is waitable */
ASSERT(IrpContext->Flags & IRPCONTEXT_CANWAIT);
/* TODO: IOCTL_DISK_CHECK_VERIFY */
/* TODO: Check if data-track present in case of a CD drive */
/* TODO: IOCTL_DISK_GET_PARTITION_INFO_EX */
/* Remove unmounted VCBs */
FatiCleanVcbs(IrpContext);
/* Create a new volume device object */
Status = IoCreateDevice(FatGlobalData.DriverObject,
sizeof(VOLUME_DEVICE_OBJECT) - sizeof(DEVICE_OBJECT),
NULL,
FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
(PDEVICE_OBJECT *)&VolumeDevice);
if (!NT_SUCCESS(Status)) return Status;
/* Match alignment requirements */
if (TargetDeviceObject->AlignmentRequirement > VolumeDevice->DeviceObject.AlignmentRequirement)
{
VolumeDevice->DeviceObject.AlignmentRequirement = TargetDeviceObject->AlignmentRequirement;
}
/* Init stack size */
VolumeDevice->DeviceObject.StackSize = TargetDeviceObject->StackSize + 1;
/* TODO: IOCTL_DISK_GET_DRIVE_GEOMETRY to obtain BytesPerSector */
VolumeDevice->DeviceObject.SectorSize = 512;
/* Signal we're done with initializing */
VolumeDevice->DeviceObject.Flags &= ~DO_DEVICE_INITIALIZING;
/* Save device object in a VPB */
Vpb->DeviceObject = (PDEVICE_OBJECT)VolumeDevice;
/* TODO: Initialize VCB for this volume */
/* Complete the request and return success */
FatCompleteRequest(IrpContext, IrpContext->Irp, STATUS_SUCCESS);
return STATUS_SUCCESS;
}