PF_RT_RPOOL_RT
snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_RT, &r->route);
{ .type = PF_RT_RPOOL_RT, .off = _OUT(r.route), .arg = &pool_parser, .cb = snl_attr_get_nested },
{ .type = PF_RT_RPOOL_RT, .off = _OUT(route), .arg = &pool_parser, .cb = nlattr_get_nested },
nlattr_add_pool(nw, PF_RT_RPOOL_RT, &rule->route);