ipsec_polhead_init
ipsec_polhead_init(iph, ipss->ipsec_tun_spd_hashsize);
ipsec_polhead_init(&ipss->ipsec_system_policy,
ipsec_polhead_init(&ipss->ipsec_inactive_policy,
extern void ipsec_polhead_init(ipsec_policy_head_t *, int);