--- zzzz-none-000/linux-4.9.231/include/uapi/linux/netfilter_ipv4/ip_tables.h	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5590-729/linux-4.9.231/include/uapi/linux/netfilter_ipv4/ip_tables.h	2022-03-30 12:03:35.000000000 +0000
@@ -88,6 +88,7 @@
 #define IPT_F_FRAG		0x01	/* Set if rule is a fragment rule */
 #define IPT_F_GOTO		0x02	/* Set if jump is a goto */
 #define IPT_F_MASK		0x03	/* All possible flag bits mask. */
+#define IPT_F_NO_DEF_MATCH 0x80 /* Internal: no default match rules present */
 
 /* Values for "inv" field in struct ipt_ip. */
 #define IPT_INV_VIA_IN		0x01	/* Invert the sense of IN IFACE. */