NT_STATUS_PIPE_NOT_AVAILABLE
status = NT_STATUS_PIPE_NOT_AVAILABLE;
NT_STATUS_PIPE_NOT_AVAILABLE, ERROR_PIPE_BUSY,
{NT_STATUS_PIPE_NOT_AVAILABLE, EBUSY},
{ERRDOS, ERROR_PIPE_BUSY, NT_STATUS_PIPE_NOT_AVAILABLE},
errp->status = NT_STATUS_PIPE_NOT_AVAILABLE;