+ if (tmpl->mode && x->props.saddr.a4 == 0) {
+ struct rtable *rt;
+ struct flowi fl_tunnel = {
+ .nl_u = {
+ .ip4_u = {
+ .daddr = x->id.daddr.a4,
+ }
+ }
+ };
+ if (!xfrm_dst_lookup((struct xfrm_dst **)&rt,
+ &fl_tunnel, AF_INET)) {
+ x->props.saddr.a4 = rt->rt_src;
+ dst_release(&rt->u.dst);
+ }
+ }