IFLA_XFRM_IF_ID
if (data[IFLA_XFRM_IF_ID])
parms->if_id = nla_get_u32(data[IFLA_XFRM_IF_ID]);
nla_put_u32(skb, IFLA_XFRM_IF_ID, parm->if_id) ||
[IFLA_XFRM_IF_ID] = { .type = NLA_U32 },