if_set_sadl
if_set_sadl(ifp, CLLADDR(sdl), ETHER_ADDR_LEN, false);
if_set_sadl(ifp, &linkaddress, sizeof(linkaddress), false);
if_set_sadl(ifp, ic->ic_myaddr, ETHER_ADDR_LEN, false);
void if_set_sadl(struct ifnet *, const void *, u_char, bool);
if_set_sadl(ifp, &lla, sizeof(lla), true);
if_set_sadl(ifp, lla, ETHER_ADDR_LEN, !ETHER_IS_LOCAL(lla));
if_set_sadl(ifp, hwaddr, sizeof(struct ieee1394_hwaddr), true);
if_set_sadl(ifp, enaddr, ETHER_ADDR_LEN, false);
if_set_sadl(ifp, sa->sa_data, ETHER_ADDR_LEN, false);
if_set_sadl(ifp, enaddr, sizeof(enaddr), false);