- assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) == -ENOTSUP);
- assert_se(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "vlan") >= 0);
- assert_se(sd_rtnl_message_open_container(m, IFLA_INFO_DATA) >= 0);
- assert_se(sd_rtnl_message_open_container(m, IFLA_INFO_DATA) == -ENOTSUP);