IP_PROBE
IP_PROBE(send, NULL, NULL, ip, nh->nh_ifp, ip, NULL);
IP_PROBE(send, NULL, NULL,
IP_PROBE(receive, NULL, NULL, ip, m->m_pkthdr.rcvif, ip, NULL);
IP_PROBE(send, NULL, NULL, ip, ifp, ip, NULL);
IP_PROBE(send, NULL, NULL, mtod(m, struct ip *), ifp,
IP_PROBE(receive, NULL, NULL, le->outer.ip4, lc->ifp,
IP_PROBE(receive, NULL, NULL, le->outer.ip6, lc->ifp,
IP_PROBE(receive, NULL, NULL, le->outer.ip4, lc->ifp,
IP_PROBE(receive, NULL, NULL, le->outer.ip6, lc->ifp,
IP_PROBE(receive, NULL, NULL, le->inner.ip4, NULL,
IP_PROBE(receive, NULL, NULL, le->outer.ip4, lc->ifp,
IP_PROBE(receive, NULL, NULL, le->outer.ip6, lc->ifp,
IP_PROBE(receive, NULL, NULL, le->inner.ip6, NULL, NULL,
IP_PROBE(send, NULL, NULL, ip6, nh->nh_ifp, NULL, ip6);
IP_PROBE(receive, NULL, NULL, ip6, rcvif, NULL, ip6);
IP_PROBE(send, NULL, NULL, ip6, ifp, NULL, ip6);
IP_PROBE(send, NULL, NULL, mtod(m, struct ip6_hdr *), ifp, NULL,
IP_PROBE(send, NULL, NULL, ip6, ifp, NULL, ip6);