Function pfr_attach_table

freebsd/netpfil/pf/pf_table.c:2122–2158

}

struct pfr_ktable *
pfr_attach_table(struct pf_kruleset *rs, char *name)
{
	struct pfr_ktable	*kt, *rt;
	struct pfr_table	 tbl;
	struct pf_kanchor	*ac = rs->anchor;

	PF_RULES_WASSERT();

	bzero(&tbl, sizeof(tbl));
	strlcpy(tbl.pfrt_name, name, sizeof(tbl.pfrt_name));
	if (ac != NULL)
		strlcpy(tbl.pfrt_anchor, ac->path, sizeof(tbl.pfrt_anchor));
	kt = pfr_lookup_table(&tbl);
	if (kt == NULL) {
		kt = pfr_create_ktable(&tbl, time_second, 1);
		if (kt == NULL)
			return (NULL);
		if (ac != NULL) {
			bzero(tbl.pfrt_anchor, sizeof(tbl.pfrt_anchor));
			rt = pfr_lookup_table(&tbl);
			if (rt == NULL) {
				rt = pfr_create_ktable(&tbl, 0, 1);
				if (rt == NULL) {
					pfr_destroy_ktable(kt, 0);
					return (NULL);
				}
				pfr_insert_ktable(rt);
			}
			kt->pfrkt_root = rt;
		}
		pfr_insert_ktable(kt);
	}
	if (!kt->pfrkt_refcnt[PFR_REFCNT_RULE]++)
		pfr_setflags_ktable(kt, kt->pfrkt_flags|PFR_TFLAG_REFERENCED);
	return (kt);
}

void
pfr_detach_table(struct pfr_ktable *kt)