ipsec_swap_policy
ipsec_swap_policy(&ipss->ipsec_system_policy,
ipsec_swap_policy(itp->itp_policy, itp->itp_inactive, ns);
extern void ipsec_swap_policy(ipsec_policy_head_t *, ipsec_policy_head_t *,
ipsec_swap_policy(itp->itp_policy, itp->itp_inactive, ns);