PF_SL_RATE
{ .type = PF_SL_RATE, .off = _OUT(rate), .arg = &limit_rate_parser, .cb = snl_attr_get_nested },
snl_add_msg_attr_limit_rate(&nw, PF_SL_RATE, &lim->rate);
{ .type = PF_SL_RATE, .off = _OUT(rate), .arg = &rate_parser, .cb = nlattr_get_nested },
nlattr_add_limiter_rate(nw, PF_SL_RATE, &attrs.rate);