243 static void	tun_vnethdr_set(struct ifnet *ifp, int vhdrlen);
1254 tun_vnethdr_set(struct ifnet *ifp, int vhdrlen)  in tun_vnethdr_set()  argument
1260 	if (tp->tun_vhdrlen == vhdrlen)  in tun_vnethdr_set()
1268 	if (vhdrlen != 0)  in tun_vnethdr_set()
1280 	tp->tun_vhdrlen = vhdrlen;  in tun_vnethdr_set()
1283 	    vhdrlen, ifp->if_capabilities);  in tun_vnethdr_set()
1875 	int		align, vhdrlen, error;  in tunwrite()  local
1890 	vhdrlen = tp->tun_vhdrlen;  in tunwrite()
1894 		mru += vhdrlen;  in tunwrite()
1902 	if (vhdrlen > 0) {  in tunwrite()
1903 		error = uiomove(&vhdr, vhdrlen, uio);  in tunwrite()
1924 		return (tunwrite_l2(tp, m, vhdrlen > 0 ? &vhdr : NULL));  in tunwrite()