IFLA_XFRM_COLLECT_METADATA
if (data[IFLA_XFRM_COLLECT_METADATA])
(xi->p.collect_md && nla_put_flag(skb, IFLA_XFRM_COLLECT_METADATA)))
[IFLA_XFRM_UNSPEC] = { .strict_start_type = IFLA_XFRM_COLLECT_METADATA },
[IFLA_XFRM_COLLECT_METADATA] = { .type = NLA_FLAG },
rtattr_add(nh, IFLA_XFRM_COLLECT_METADATA, 0);