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sys: FspVolumeTransactFsext

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This commit is contained in:
Bill Zissimopoulos
2019-06-22 15:18:16 -07:00
parent dcf7e4c5a6
commit f5fde4c0bb
3 changed files with 34 additions and 21 deletions
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2
src/sys/driver.h
View File

@@ -1242,6 +1242,8 @@ NTSTATUS FspVolumeGetNameList(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeTransact(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeTransactFsext(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeStop(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeWork(

22
src/sys/fsctl.c
View File

@@ -99,27 +99,7 @@ static NTSTATUS FspFsctlFileSystemControl(
break;
default:
if (0 != IrpSp->FileObject->FsContext2)
{
PDEVICE_OBJECT FsvolDeviceObject = IrpSp->FileObject->FsContext2;
if (!FspDeviceReference(FsvolDeviceObject))
{
Result = STATUS_CANCELLED;
break;
}
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(
FsvolDeviceObject);
if (IrpSp->Parameters.FileSystemControl.FsControlCode ==
FsvolDeviceExtension->VolumeParams.FsextControlCode)
{
FSP_FSEXT_PROVIDER *Provider = FspFsextProvider(
FsvolDeviceExtension->VolumeParams.FsextControlCode, 0);
if (0 != Provider)
Result = Provider->DeviceTransact(FsvolDeviceObject, Irp);
}
FspDeviceDereference(FsvolDeviceObject);
}
Result = FspVolumeTransactFsext(FsctlDeviceObject, Irp, IrpSp);
break;
}
break;

31
src/sys/volume.c
View File

@@ -42,6 +42,8 @@ static NTSTATUS FspVolumeGetNameListNoLock(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeTransact(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeTransactFsext(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeStop(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
NTSTATUS FspVolumeWork(
@@ -59,6 +61,7 @@ NTSTATUS FspVolumeWork(
#pragma alloc_text(PAGE, FspVolumeGetNameList)
#pragma alloc_text(PAGE, FspVolumeGetNameListNoLock)
#pragma alloc_text(PAGE, FspVolumeTransact)
#pragma alloc_text(PAGE, FspVolumeTransactFsext)
#pragma alloc_text(PAGE, FspVolumeStop)
#pragma alloc_text(PAGE, FspVolumeWork)
#endif
@@ -914,6 +917,34 @@ exit:
return Result;
}
NTSTATUS FspVolumeTransactFsext(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
ASSERT(IRP_MJ_FILE_SYSTEM_CONTROL == IrpSp->MajorFunction);
ASSERT(IRP_MN_USER_FS_REQUEST == IrpSp->MinorFunction);
ASSERT(0 != IrpSp->FileObject->FsContext2);
PDEVICE_OBJECT FsvolDeviceObject = IrpSp->FileObject->FsContext2;
if (!FspDeviceReference(FsvolDeviceObject))
return STATUS_CANCELLED;
NTSTATUS Result = STATUS_INVALID_DEVICE_REQUEST;
if (IrpSp->Parameters.FileSystemControl.FsControlCode ==
FspFsvolDeviceExtension(FsvolDeviceObject)->VolumeParams.FsextControlCode)
{
FSP_FSEXT_PROVIDER *Provider = FspFsextProvider(
IrpSp->Parameters.FileSystemControl.FsControlCode, 0);
if (0 != Provider)
Result = Provider->DeviceTransact(FsvolDeviceObject, Irp);
}
FspDeviceDereference(FsvolDeviceObject);
return Result;
}
NTSTATUS FspVolumeStop(
PDEVICE_OBJECT FsctlDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{