pf_nvbool
PFNV_CHK(pf_nvbool(nvl, "neg", &krule->neg));
PFNV_CHK(pf_nvbool(nvl, "quick", &krule->quick));
PFNV_CHK(pf_nvbool(nvl, "ifnot", &krule->ifnot));
PFNV_CHK(pf_nvbool(nvl, "match_tag_not", &krule->match_tag_not));
PFNV_CHK(pf_nvbool(nvl, "kill_match", &kill->psk_kill_match));
PFNV_CHK(pf_nvbool(nvl, "nat", &kill->psk_nat));
int pf_nvbool(const nvlist_t *, const char *, bool *);