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sys: IRP_MJ_QUERY_VOLUME_INFORMATION

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This commit is contained in:
Bill Zissimopoulos 2016-01-24 23:35:29 -08:00
parent 99f876380a
commit ed91c26c59
2 changed files with 147 additions and 5 deletions
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5
inc/winfsp/fsctl.h
View File

@ -203,6 +203,11 @@ typedef struct
{
FSP_FSCTL_FILE_INFO FileInfo;
} QueryInformation;
struct
{
UINT64 TotalAllocationUnits;
UINT64 AvailableAllocationUnits;
} QueryVolumeInformation;
} Rsp;
FSP_FSCTL_DECLSPEC_ALIGN UINT8 Buffer[];
} FSP_FSCTL_TRANSACT_RSP;

147
src/sys/volinfo.c
View File

@ -6,16 +6,33 @@
#include <sys/driver.h>
static NTSTATUS FspFsvolQueryVolumeAttributeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd);
static NTSTATUS FspFsvolQueryVolumeDeviceInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd);
static NTSTATUS FspFsvolQueryVolumeFullSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const UINT64 *Sizes);
static NTSTATUS FspFsvolQueryVolumeSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const UINT64 *Sizes);
static NTSTATUS FspFsvolQueryVolumeFsVolumeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd);
static NTSTATUS FspFsvolQueryVolumeInformation(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
FSP_IOCMPL_DISPATCH FspFsvolQueryVolumeInformationComplete;
static NTSTATUS FspFsvolSetVolumeInformation(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
FSP_IOCMPL_DISPATCH FspFsvolSetVolumeInformationComplete;
FSP_DRIVER_DISPATCH FspQueryVolumeInformation;
FSP_DRIVER_DISPATCH FspSetVolumeInformation;
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, FspFsvolQueryVolumeAttributeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeDeviceInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeFullSizeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeSizeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeFsVolumeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeInformationComplete)
#pragma alloc_text(PAGE, FspFsvolSetVolumeInformation)
@ -24,25 +41,145 @@ FSP_DRIVER_DISPATCH FspSetVolumeInformation;
#pragma alloc_text(PAGE, FspSetVolumeInformation)
#endif
static NTSTATUS FspFsvolQueryVolumeInformation(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
static NTSTATUS FspFsvolQueryVolumeAttributeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
static NTSTATUS FspFsvolQueryVolumeDeviceInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
static NTSTATUS FspFsvolQueryVolumeFullSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const UINT64 *Sizes)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
static NTSTATUS FspFsvolQueryVolumeSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const UINT64 *Sizes)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
static NTSTATUS FspFsvolQueryVolumeFsVolumeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
}
static NTSTATUS FspFsvolQueryVolumeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
NTSTATUS Result;
PUINT8 Buffer = Irp->AssociatedIrp.SystemBuffer;
PUINT8 BufferEnd = Buffer + IrpSp->Parameters.QueryFile.Length;
switch (IrpSp->Parameters.QueryVolume.FsInformationClass)
{
case FileFsAttributeInformation:
Result = FspFsvolQueryVolumeAttributeInformation(FsvolDeviceObject, &Buffer, BufferEnd);
break;
case FileFsDeviceInformation:
Result = FspFsvolQueryVolumeDeviceInformation(FsvolDeviceObject, &Buffer, BufferEnd);
break;
case FileFsFullSizeInformation:
Result = FspFsvolQueryVolumeFullSizeInformation(FsvolDeviceObject, &Buffer, BufferEnd, 0);
break;
case FileFsSizeInformation:
Result = FspFsvolQueryVolumeSizeInformation(FsvolDeviceObject, &Buffer, BufferEnd, 0);
break;
case FileFsVolumeInformation:
Result = FspFsvolQueryVolumeFsVolumeInformation(FsvolDeviceObject, &Buffer, BufferEnd);
break;
default:
Result = STATUS_INVALID_PARAMETER;
break;
}
if (FSP_STATUS_IOQ_POST != Result)
{
Irp->IoStatus.Information = (UINT_PTR)(Buffer - (PUINT8)Irp->AssociatedIrp.SystemBuffer);
return Result;
}
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
BOOLEAN FileNameRequired = 0 != FsvolDeviceExtension->VolumeParams.FileNameRequired;
PFILE_OBJECT FileObject = IrpSp->FileObject;
FSP_FILE_NODE *FileNode = FileObject->FsContext;
FSP_FSCTL_TRANSACT_REQ *Request;
Result = FspIopCreateRequest(Irp, FileNameRequired ? &FileNode->FileName : 0, 0, &Request);
if (!NT_SUCCESS(Result))
return Result;
Request->Kind = FspFsctlTransactQueryVolumeInformationKind;
return FSP_STATUS_IOQ_POST;
}
VOID FspFsvolQueryVolumeInformationComplete(
PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Response)
{
FSP_ENTER_IOC(PAGED_CODE());
if (!NT_SUCCESS(Response->IoStatus.Status))
{
Irp->IoStatus.Information = Response->IoStatus.Information;
Result = Response->IoStatus.Status;
FSP_RETURN();
}
PDEVICE_OBJECT FsvolDeviceObject = IrpSp->DeviceObject;
PUINT8 Buffer = Irp->AssociatedIrp.SystemBuffer;
PUINT8 BufferEnd = Buffer + IrpSp->Parameters.QueryFile.Length;
//FspVolumeSetSizeInfo(FsvolDeviceObject,
// &Response->Rsp.QueryVolumeInformation.TotalAllocationUnits);
switch (IrpSp->Parameters.QueryVolume.FsInformationClass)
{
case FileFsFullSizeInformation:
Result = FspFsvolQueryVolumeFullSizeInformation(FsvolDeviceObject, &Buffer, BufferEnd,
&Response->Rsp.QueryVolumeInformation.TotalAllocationUnits);
break;
case FileFsSizeInformation:
Result = FspFsvolQueryVolumeSizeInformation(FsvolDeviceObject, &Buffer, BufferEnd,
&Response->Rsp.QueryVolumeInformation.TotalAllocationUnits);
break;
default:
ASSERT(0);
Result = STATUS_INVALID_PARAMETER;
break;
}
ASSERT(FSP_STATUS_IOQ_POST != Result);
Irp->IoStatus.Information = (UINT_PTR)(Buffer - (PUINT8)Irp->AssociatedIrp.SystemBuffer);
FSP_LEAVE_IOC("%s",
FsInformationClassSym(IrpSp->Parameters.QueryVolume.FsInformationClass));
}
static NTSTATUS FspFsvolSetVolumeInformation(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();