HOOK_FAMILY_INIT
HOOK_FAMILY_INIT(&ipst->ips_arproot, Hn_ARP);
HOOK_FAMILY_INIT(&ipst->ips_ipv4root, Hn_IPV4);
HOOK_FAMILY_INIT(&ipst->ips_ipv6root, Hn_IPV6);
HOOK_FAMILY_INIT(&vnh->vnh_family, nh_name);