XT_UDP_INV_MASK   135 include/linux/netfilter_ipv4/ip_tables.h #define IPT_UDP_INV_MASK	XT_UDP_INV_MASK
XT_UDP_INV_MASK   195 include/linux/netfilter_ipv6/ip6_tables.h #define IP6T_UDP_INV_MASK	XT_UDP_INV_MASK
XT_UDP_INV_MASK   169 net/netfilter/xt_tcpudp.c 	return !(udpinfo->invflags & ~XT_UDP_INV_MASK);