pfsync_ins_ack
struct pfsync_ins_ack *ia, *iaa;
iaa = (struct pfsync_ins_ack *)(mp->m_data + offp);
return (count * sizeof(struct pfsync_ins_ack));
{ pfsync_out_iack, sizeof(struct pfsync_ins_ack), PFSYNC_ACT_INS_ACK },
struct pfsync_ins_ack *iack = buf;