--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _XT_CT_H
+#define _XT_CT_H
+
+#include <linux/types.h>
+
+enum {
+ XT_CT_NOTRACK = 1 << 0,
+ XT_CT_NOTRACK_ALIAS = 1 << 1,
+ XT_CT_ZONE_DIR_ORIG = 1 << 2,
+ XT_CT_ZONE_DIR_REPL = 1 << 3,
+ XT_CT_ZONE_MARK = 1 << 4,
+
+ XT_CT_MASK = XT_CT_NOTRACK | XT_CT_NOTRACK_ALIAS |
+ XT_CT_ZONE_DIR_ORIG | XT_CT_ZONE_DIR_REPL |
+ XT_CT_ZONE_MARK,
+};
+
+struct xt_ct_target_info {
+ __u16 flags;
+ __u16 zone;
+ __u32 ct_events;
+ __u32 exp_events;
+ char helper[16];
+
+ /* Used internally by the kernel */
+ struct nf_conn *ct __attribute__((aligned(8)));
+};
+
+struct xt_ct_target_info_v1 {
+ __u16 flags;
+ __u16 zone;
+ __u32 ct_events;
+ __u32 exp_events;
+ char helper[16];
+ char timeout[32];
+
+ /* Used internally by the kernel */
+ struct nf_conn *ct __attribute__((aligned(8)));
+};
+
+#endif /* _XT_CT_H */