ipadm_if_info
status = ipadm_if_info(iph, phyname, &if_info, 0, LIFC_DEFAULT);
status = ipadm_if_info(iph, ifname, &if_info, 0, LIFC_DEFAULT);
status = ipadm_if_info(iph, ifname, &ifinfo, 0, LIFC_DEFAULT);
status = ipadm_if_info(ip_handle, ifinst, &ifinfo, 0, LIFC_UNDER_IPMP);
extern ipadm_status_t ipadm_if_info(ipadm_handle_t, const char *,