ipsec_inbound_ah_sa
mp = ipsec_inbound_ah_sa(mp, ira, &ah);
mp = ipsec_inbound_ah_sa(mp, ira, &ah);
mp = ipsec_inbound_ah_sa(mp, ira, &ah);
mp = ipsec_inbound_ah_sa(mp, ira, &ah);
extern mblk_t *ipsec_inbound_ah_sa(mblk_t *, ip_recv_attr_t *, ah_t **);