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sys: implement SectorSize queries

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- IRP_MJ_QUERY_VOLUME_INFORMATION/FileFsSectorSizeInformation
- IOCTL_STORAGE_QUERY_PROPERTY/StorageAccessAlignmentProperty
This commit is contained in:
Bill Zissimopoulos
2019-09-06 20:52:15 -07:00
parent de75454d50
commit 9436fd8402
4 changed files with 107 additions and 8 deletions
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69
src/sys/devctl.c
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@ -23,6 +23,9 @@
static NTSTATUS FspFsvrtDeviceControl(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
static BOOLEAN FspFsvrtDeviceControlStorageQuery(
PDEVICE_OBJECT FsvrtDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp,
PNTSTATUS PResult);
static NTSTATUS FspFsvolDeviceControl(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
FSP_IOCMPL_DISPATCH FspFsvolDeviceControlComplete;
@ -31,6 +34,7 @@ FSP_DRIVER_DISPATCH FspDeviceControl;
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, FspFsvrtDeviceControl)
#pragma alloc_text(PAGE, FspFsvrtDeviceControlStorageQuery)
#pragma alloc_text(PAGE, FspFsvolDeviceControl)
#pragma alloc_text(PAGE, FspFsvolDeviceControlComplete)
#pragma alloc_text(PAGE, FspFsvolDeviceControlRequestFini)
@ -49,6 +53,9 @@ static NTSTATUS FspFsvrtDeviceControl(
NTSTATUS Result;
if (FspFsvrtDeviceControlStorageQuery(FsvrtDeviceObject, Irp, IrpSp, &Result))
return Result;
if (FspMountdevDeviceControl(FsvrtDeviceObject, Irp, IrpSp, &Result))
return Result;
@ -69,6 +76,62 @@ static NTSTATUS FspFsvrtDeviceControl(
return STATUS_UNRECOGNIZED_VOLUME;
}
static BOOLEAN FspFsvrtDeviceControlStorageQuery(
PDEVICE_OBJECT FsvrtDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp,
PNTSTATUS PResult)
{
PAGED_CODE();
/*
* SQL Server insists on sending us storage level IOCTL's even though
* WinFsp file systems are not on top of a real disk. So bite the bullet
* and implement some of those storage IOCTL's to make SQL Server happy.
*/
if (IOCTL_STORAGE_QUERY_PROPERTY != IrpSp->Parameters.DeviceIoControl.IoControlCode ||
sizeof(STORAGE_PROPERTY_QUERY) > IrpSp->Parameters.DeviceIoControl.InputBufferLength)
return FALSE;
PSTORAGE_PROPERTY_QUERY Query = Irp->AssociatedIrp.SystemBuffer;
switch (Query->PropertyId)
{
case StorageAccessAlignmentProperty:
if (PropertyExistsQuery == Query->QueryType)
*PResult = STATUS_SUCCESS;
else if (PropertyStandardQuery == Query->QueryType)
{
FSP_FSVRT_DEVICE_EXTENSION *FsvrtDeviceExtension = FspFsvrtDeviceExtension(FsvrtDeviceObject);
PSTORAGE_ACCESS_ALIGNMENT_DESCRIPTOR Descriptor = Irp->AssociatedIrp.SystemBuffer;
ULONG OutputBufferLength = IrpSp->Parameters.DeviceIoControl.OutputBufferLength;
if (sizeof(STORAGE_DESCRIPTOR_HEADER) > OutputBufferLength)
*PResult = STATUS_BUFFER_TOO_SMALL;
else if (sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR) > OutputBufferLength)
{
Descriptor->Version = sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR);
Descriptor->Size = sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR);
Irp->IoStatus.Information = sizeof(STORAGE_DESCRIPTOR_HEADER);
*PResult = STATUS_SUCCESS;
}
else
{
RtlZeroMemory(Descriptor, sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR));
Descriptor->Version = sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR);
Descriptor->Size = sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR);
Descriptor->BytesPerLogicalSector = FsvrtDeviceExtension->SectorSize;
Descriptor->BytesPerPhysicalSector = FsvrtDeviceExtension->SectorSize;
Irp->IoStatus.Information = sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR);
*PResult = STATUS_SUCCESS;
}
}
else
*PResult = STATUS_NOT_SUPPORTED;
return TRUE;
}
return FALSE;
}
static NTSTATUS FspFsvolDeviceControl(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
@ -79,11 +142,6 @@ static NTSTATUS FspFsvolDeviceControl(
ULONG IoControlCode = IrpSp->Parameters.DeviceIoControl.IoControlCode;
NTSTATUS Result;
#if 0
if (FspMountdevDeviceControl(FsvolDeviceExtension->FsvrtDeviceObject, Irp, IrpSp, &Result))
return Result;
#endif
/*
* Possibly forward the IOCTL request to the user mode file system. The rules are:
*
@ -92,7 +150,6 @@ static NTSTATUS FspFsvolDeviceControl(
* METHOD_BUFFERED will be forwarded.
*/
/* do we support DeviceControl? */
if (!FsvolDeviceExtension->VolumeParams.DeviceControl)
return STATUS_INVALID_DEVICE_REQUEST;