ipt_state.h
#ifndef _IPT_STATE_H
#define _IPT_STATE_H
/* Backwards compatibility for old userspace */
#include <linux/netfilter/xt_state.h>
#define IPT_STATE_BIT XT_STATE_BIT
#define IPT_STATE_INVALID XT_STATE_INVALID
#define IPT_STATE_UNTRACKED XT_STATE_UNTRACKED
#define ipt_state_info xt_state_info
#endif /*_IPT_STATE_H*/