PF_RT_MIN_TTL
snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl);
{ .type = PF_RT_MIN_TTL, .off = _OUT(r.min_ttl), .cb = snl_attr_get_uint8 },
nlattr_add_u8(nw, PF_RT_MIN_TTL, rule->min_ttl);
{ .type = PF_RT_MIN_TTL, .off = _OUT(min_ttl), .cb = nlattr_get_uint8 },