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sys: FspVolumeFastTransact

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This commit is contained in:
Bill Zissimopoulos
2022-05-17 17:25:18 +01:00
parent 43af829d46
commit c0fa5696d7
5 changed files with 139 additions and 30 deletions
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58
src/sys/devctl.c
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@ -21,6 +21,7 @@
#include <sys/driver.h>
FAST_IO_DEVICE_CONTROL FspFastIoDeviceControl;
static NTSTATUS FspFsctlDeviceControl(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
static NTSTATUS FspFsvrtDeviceControl(
@ -35,6 +36,7 @@ static FSP_IOP_REQUEST_FINI FspFsvolDeviceControlRequestFini;
FSP_DRIVER_DISPATCH FspDeviceControl;
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, FspFastIoDeviceControl)
#pragma alloc_text(PAGE, FspFsctlDeviceControl)
#pragma alloc_text(PAGE, FspFsvrtDeviceControl)
#pragma alloc_text(PAGE, FspFsvrtDeviceControlStorageQuery)
@ -49,6 +51,62 @@ enum
RequestFileNode = 0,
};
BOOLEAN FspFastIoDeviceControl(
PFILE_OBJECT FileObject,
BOOLEAN CanWait,
PVOID InputBuffer,
ULONG InputBufferLength,
PVOID OutputBuffer,
ULONG OutputBufferLength,
ULONG IoControlCode,
PIO_STATUS_BLOCK IoStatus,
PDEVICE_OBJECT DeviceObject)
{
FSP_ENTER_BOOL(PAGED_CODE());
/* cannot use FSP_ENTER_FIO() because it only supports fsvol devices */
Result = DEBUGTEST(50) &&
CanWait &&
FSP_IOCTL_TRANSACT == IoControlCode &&
FspFsctlDeviceExtensionKind == FspDeviceExtension(DeviceObject)->Kind;
if (!Result)
FSP_RETURN();
#if 0
PDEVICE_OBJECT FsctlDeviceObject = DeviceObject;
if (!FspDeviceReference(FsctlDeviceObject))
{
IoStatus->Status = STATUS_CANCELLED;
IoStatus->Information = 0;
FSP_RETURN();
}
#endif
ASSERT(0 == IoGetTopLevelIrp());
IoSetTopLevelIrp((PIRP)FSRTL_FAST_IO_TOP_LEVEL_IRP);
IoStatus->Status = FspVolumeFastTransact(
FileObject->FsContext2,
IoControlCode,
InputBuffer,
InputBufferLength,
OutputBuffer,
OutputBufferLength,
IoStatus,
(PIRP)FSRTL_FAST_IO_TOP_LEVEL_IRP);
IoSetTopLevelIrp(0);
#if 0
FspDeviceDereference(FsctlDeviceObject);
#endif
FSP_LEAVE_BOOL(
"%s, FileObject=%p",
IoctlCodeSym(IoControlCode),
FileObject);
}
static NTSTATUS FspFsctlDeviceControl(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{