VIFF_REGISTER
if (!(vifp->v_flags & (VIFF_TUNNEL | VIFF_REGISTER)))
if (vifp->v_flags & VIFF_REGISTER) {
if (mfct->viftable[xmt_vif].v_flags & VIFF_REGISTER)
if (vif->v_flags & VIFF_REGISTER)
(vif->v_flags & (VIFF_TUNNEL | VIFF_REGISTER)) == 0) {
if (vifcp->vifc_flags & VIFF_REGISTER) {
} else if (vifcp->vifc_flags & VIFF_REGISTER) {