IPPROTO_PFSYNC
case IPPROTO_PFSYNC:
st->key[PF_SK_WIRE]->proto == IPPROTO_PFSYNC) {
ip->ip_p = IPPROTO_PFSYNC;
ip6->ip6_nxt = IPPROTO_PFSYNC;
error = ipproto_register(IPPROTO_PFSYNC, pfsync_input, NULL);
error = ip6proto_register(IPPROTO_PFSYNC, pfsync6_input, NULL);
ipproto_unregister(IPPROTO_PFSYNC);
ipproto_unregister(IPPROTO_PFSYNC);
ip6proto_unregister(IPPROTO_PFSYNC);