NFTA_NAT_FAMILY
[NFTA_NAT_FAMILY] = { .type = NLA_U32 },
if (tb[NFTA_NAT_FAMILY] == NULL)
family = ntohl(nla_get_be32(tb[NFTA_NAT_FAMILY]));
if (nla_put_be32(skb, NFTA_NAT_FAMILY, htonl(priv->family)))