L2TP_ATTR_IP6_SADDR
if (attrs[L2TP_ATTR_IP6_SADDR] && attrs[L2TP_ATTR_IP6_DADDR]) {
cfg->local_ip6 = nla_data(attrs[L2TP_ATTR_IP6_SADDR]);
if (nla_put_in6_addr(skb, L2TP_ATTR_IP6_SADDR, &np->saddr) ||
[L2TP_ATTR_IP6_SADDR] = {