FLT_PREOP_CALLBACK_STATUS PtPreOperationPassThrough(_Inout_ PFLT_CALLBACK_DATA Data, _In_ PCFLT_RELATED_OBJECTS FltObjects, _Flt_CompletionContext_Outptr_ PVOID * CompletionContext)
{
NTSTATUS status;
UNREFERENCED_PARAMETER(CompletionContext);
UNREFERENCED_PARAMETER(FltObjects);
KdPrint(("passthrough!ptpreoperaton passthrough: entered!!!!"));
if (PtDoRequestOperationStatus(Data))
{
status = FltRequestOperationStatusCallback(Data, PtOperationStatusCallback, (PVOID)(++OperationStatusCtx));
if (!NT_SUCCESS(status))
{
KdPrint(("PassThrough!PtPreOperationPassThrough: FltRequestOperationStatusCallback Failed, status=%08x\n",
status));
}
}
return FLT_PREOP_SUCCESS_WITH_CALLBACK;
}
/*************************************************************************
MiniFilter callback routines.
*************************************************************************/
FLT_PREOP_CALLBACK_STATUS
PtPreOperationPassThrough (
__inout PFLT_CALLBACK_DATA Data,
__in PCFLT_RELATED_OBJECTS FltObjects,
__deref_out_opt PVOID *CompletionContext
)
/*++
Routine Description:
This routine is the main pre-operation dispatch routine for this
miniFilter. Since this is just a simple passThrough miniFilter it
does not do anything with the callbackData but rather return
FLT_PREOP_SUCCESS_WITH_CALLBACK thereby passing it down to the next
miniFilter in the chain.
This is non-pageable because it could be called on the paging path
Arguments:
Data - Pointer to the filter callbackData that is passed to us.
FltObjects - Pointer to the FLT_RELATED_OBJECTS data structure containing
opaque handles to this filter, instance, its associated volume and
file object.
CompletionContext - The context for the completion routine for this
operation.
Return Value:
The return value is the status of the operation.
--*/
{
NTSTATUS status;
FLT_PREOP_CALLBACK_STATUS FltStatus = FLT_PREOP_COMPLETE;
UNREFERENCED_PARAMETER( FltObjects );
UNREFERENCED_PARAMETER( CompletionContext );
PT_DBG_PRINT( PTDBG_TRACE_ROUTINES,
("PassThrough!PtPreOperationPassThrough: Entered\n") );
if(IsMyFakeFcb(FltObjects->FileObject))
{
if(FLT_IS_FASTIO_OPERATION(Data))
{
/*DbgPrint("收到我们自己的fcb请求MajorFunction %x \n",Data->Iopb->MajorFunction );
DbgPrint("收到我们自己的fcb请求MinorFunction %x \n",Data->Iopb->MinorFunction );
DbgPrint("FastIo Passthru \n");*/
FltStatus = FLT_PREOP_DISALLOW_FASTIO ;
return FltStatus;
}
if(FLT_IS_IRP_OPERATION(Data))
{
DbgPrint("收到我们自己的fcb请求MajorFunction %x \n",Data->Iopb->MajorFunction );
DbgPrint("收到我们自己的fcb请求MinorFunction %x \n",Data->Iopb->MinorFunction );
DbgPrint("Irp Passthru \n");
FltStatus = X70FsdPrePassThroughIrp(Data,FltObjects,CompletionContext);
return FltStatus;
}
if(FLT_IS_FS_FILTER_OPERATION(Data))
{
Data->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
return FltStatus;
}
}
//
// See if this is an operation we would like the operation status
// for. If so request it.
//
// NOTE: most filters do NOT need to do this. You only need to make
// this call if, for example, you need to know if the oplock was
// actually granted.
//
if (PtDoRequestOperationStatus( Data )) {
status = FltRequestOperationStatusCallback( Data,
PtOperationStatusCallback,
(PVOID)(++OperationStatusCtx) );
if (!NT_SUCCESS(status)) {
PT_DBG_PRINT( PTDBG_TRACE_OPERATION_STATUS,
("PassThrough!PtPreOperationPassThrough: FltRequestOperationStatusCallback Failed, status=%08x\n",
status) );
}
}
return FLT_PREOP_SUCCESS_WITH_CALLBACK;
}
/*************************************************************************
MiniFilter callback routines.
*************************************************************************/
FLT_PREOP_CALLBACK_STATUS
PtPreOperationPassThrough (
__inout PFLT_CALLBACK_DATA Data,
__in PCFLT_RELATED_OBJECTS FltObjects,
__deref_out_opt PVOID *CompletionContext
)
/*++
Routine Description:
This routine is the main pre-operation dispatch routine for this
miniFilter. Since this is just a simple passThrough miniFilter it
does not do anything with the callbackData but rather return
FLT_PREOP_SUCCESS_WITH_CALLBACK thereby passing it down to the next
miniFilter in the chain.
This is non-pageable because it could be called on the paging path
Arguments:
Data - Pointer to the filter callbackData that is passed to us.
FltObjects - Pointer to the FLT_RELATED_OBJECTS data structure containing
opaque handles to this filter, instance, its associated volume and
file object.
CompletionContext - The context for the completion routine for this
operation.
Return Value:
The return value is the status of the operation.
--*/
{
NTSTATUS status;
UNREFERENCED_PARAMETER( FltObjects );
UNREFERENCED_PARAMETER( CompletionContext );
PT_DBG_PRINT( PTDBG_TRACE_ROUTINES,
("PassThrough!PtPreOperationPassThrough: Entered\n") );
//
// See if this is an operation we would like the operation status
// for. If so request it.
//
// NOTE: most filters do NOT need to do this. You only need to make
// this call if, for example, you need to know if the oplock was
// actually granted.
//
if (PtDoRequestOperationStatus( Data )) {
status = FltRequestOperationStatusCallback( Data,
PtOperationStatusCallback,
(PVOID)(++OperationStatusCtx) );
if (!NT_SUCCESS(status)) {
PT_DBG_PRINT( PTDBG_TRACE_OPERATION_STATUS,
("PassThrough!PtPreOperationPassThrough: FltRequestOperationStatusCallback Failed, status=%08x\n",
status) );
}
}
return FLT_PREOP_SUCCESS_WITH_CALLBACK;
}
