ipf_log_failures
fiop->f_log_fail = ipf_log_failures(softc, IPL_LOGIPF);
extern u_long ipf_log_failures(ipf_main_softc_t *, int);
nsp->ns_log_fail = ipf_log_failures(softc, IPF_LOGNAT);
issp->iss_log_fail = ipf_log_failures(softc, IPF_LOGSTATE);