NH_LOOPBACK_IN
HOOK_EVENT_INIT(&ipst->ips_ip4_loopback_in_event, NH_LOOPBACK_IN);
HOOK_EVENT_INIT(&ipst->ips_ip6_loopback_in_event, NH_LOOPBACK_IN);
NH_LOOPBACK_IN, ifs_ipfhook6_loop_in);
NH_LOOPBACK_IN, ifs_ipfhook4_loop_in);
ifs->ifs_ipf_ipv4, NH_LOOPBACK_IN,
ifs->ifs_ipf_ipv6, NH_LOOPBACK_IN,
ifs->ifs_ipf_ipv4, NH_LOOPBACK_IN,
ifs->ifs_ipf_ipv6, NH_LOOPBACK_IN,
NH_LOOPBACK_IN, ifs->ifs_ipfhook4_loop_in) != 0);
NH_LOOPBACK_IN, ifs->ifs_ipfhook4_loop_in) != 0);