pf_find_or_create_ruleset
rs = pf_find_or_create_ruleset(ta);
rs = pf_find_or_create_ruleset(pr.anchor_call);
if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) {
if ((rs = pf_find_or_create_ruleset(anchor)) == NULL)
ruleset = pf_find_or_create_ruleset(path);
p->pfrkt_rs = pf_find_or_create_ruleset(
q->pfrkt_rs = pf_find_or_create_ruleset(q->pfrkt_anchor);
rs = pf_find_or_create_ruleset(trs->pfrt_anchor);
rs = pf_find_or_create_ruleset(tbl->pfrt_anchor);
struct pf_ruleset *pf_find_or_create_ruleset(const char *);