NTSTATUS
SmbTraceStop(
  IN  PFILE_OBJECT FileObject OPTIONAL,
  IN  SMBTRACE_COMPONENT Component
  );

Routine Description:

    This routine stops tracing in the server/redirector.  If no
    FileObject is provided, the SmbTrace application is stopped.
    If a FileObject is provided, SmbTrace is stopped if the
    FileObject refers to the one who started it.

Arguments:

    FileObject - FileObject of a process that terminated.  If it's the process
                 that requested SmbTracing, we shut down automatically.

    Component - Context from which we're called: server or redirector

Return Value:

    NTSTATUS - result of operation.  Possible results are:
        STATUS_SUCCESS - SmbTrace was stopped
        STATUS_UNSUCCESSFUL - SmbTrace was not stopped because the
            provided FileObject did not refer to the SmbTrace starter
            or because SmbTrace was not running.