ipsec_rx_ft_create
ft = ipsec_rx_ft_create(ipsec->rx_ip_type->ns, level, 0, 1);
ft = ipsec_rx_ft_create(ns, rx_init_level + 1, 0, 1);
ft = ipsec_rx_ft_create(ns, rx_init_level + 2, 0, 1);
ft = ipsec_rx_ft_create(ns, rx_init_level, 0, 1);