void fr_timeoutstate()
fr_timeoutstate()
void fr_timeoutstate(){	register int i;	register ipstate_t *is, **isp;	MUTEX_ENTER(&ipf_state);	for (i = 0; i < IPSTATE_SIZE; i++)		for (isp = &ips_table[i]; (is = *isp); )			if (is->is_age && !--is->is_age) {				*isp = is->is_next;				if (is->is_p == IPPROTO_TCP)					ips_stats.iss_fin++;				else					ips_stats.iss_expire++;				KFREE(is);				ips_num--;			} else				isp = &is->is_next;	MUTEX_EXIT(&ipf_state);}