/* Be liberal in window checking */
#define IP_CT_TCP_FLAG_BE_LIBERAL 0x08
+/* Has unacknowledged data */
+#define IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED 0x10
+
+struct nf_ct_tcp_flags {
+ u_int8_t flags;
+ u_int8_t mask;
+};
+
#ifdef __KERNEL__
struct ip_ct_tcp_state {