assert(sd_rtnl_message_read(req, &type, &data) > 0);
assert(type == RTA_GATEWAY);
assert(sd_rtnl_message_read(req, &type, &data) > 0);
assert(type == RTA_GATEWAY);
assert(sd_rtnl_message_close_container(m) >= 0);
assert(sd_rtnl_message_close_container(m) == -EINVAL);
assert(sd_rtnl_message_close_container(m) >= 0);
assert(sd_rtnl_message_close_container(m) == -EINVAL);
assert(sd_rtnl_message_read(m, &type, &data) >= 0);
assert(type == IFLA_LINKINFO);
assert(sd_rtnl_message_read(m, &type, &data) >= 0);
assert(type == IFLA_LINKINFO);