Function pfr_ina_define

freebsd/netpfil/pf/pf_table.c:1462–1561

}

int
pfr_ina_define(struct pfr_table *tbl, struct pfr_addr *addr, int size,
    int *nadd, int *naddr, u_int32_t ticket, int flags)
{
	struct pfr_ktableworkq	 tableq;
	struct pfr_kentryworkq	 addrq;
	struct pfr_ktable	*kt, *rt, *shadow, key;
	struct pfr_kentry	*p;
	struct pfr_addr		*ad;
	struct pf_kruleset	*rs;
	int			 i, rv, xadd = 0, xaddr = 0;

	PF_RULES_WASSERT();

	ACCEPT_FLAGS(flags, PFR_FLAG_DUMMY | PFR_FLAG_ADDRSTOO);
	if (size && !(flags & PFR_FLAG_ADDRSTOO))
		return (EINVAL);
	if (pfr_validate_table(tbl, PFR_TFLAG_USRMASK,
	    flags & PFR_FLAG_USERIOCTL))
		return (EINVAL);
	rs = pf_find_kruleset(tbl->pfrt_anchor);
	if (rs == NULL || !rs->topen || ticket != rs->tticket)
		return (EBUSY);
	tbl->pfrt_flags |= PFR_TFLAG_INACTIVE;
	SLIST_INIT(&tableq);
	kt = RB_FIND(pfr_ktablehead, &V_pfr_ktables, (struct pfr_ktable *)tbl);
	if (kt == NULL) {
		kt = pfr_create_ktable(tbl, 0, 1);
		if (kt == NULL)
			return (ENOMEM);
		SLIST_INSERT_HEAD(&tableq, kt, pfrkt_workq);
		xadd++;
		if (!tbl->pfrt_anchor[0])
			goto _skip;

		/* find or create root table */
		bzero(&key, sizeof(key));
		strlcpy(key.pfrkt_name, tbl->pfrt_name, sizeof(key.pfrkt_name));
		rt = RB_FIND(pfr_ktablehead, &V_pfr_ktables, &key);
		if (rt != NULL) {
			kt->pfrkt_root = rt;
			goto _skip;
		}
		rt = pfr_create_ktable(&key.pfrkt_t, 0, 1);
		if (rt == NULL) {
			pfr_destroy_ktables(&tableq, 0);
			return (ENOMEM);
		}
		SLIST_INSERT_HEAD(&tableq, rt, pfrkt_workq);
		kt->pfrkt_root = rt;
	} else if (!(kt->pfrkt_flags & PFR_TFLAG_INACTIVE))
		xadd++;
_skip:
	shadow = pfr_create_ktable(tbl, 0, 0);
	if (shadow == NULL) {
		pfr_destroy_ktables(&tableq, 0);
		return (ENOMEM);
	}