73 VNET_DEFINE(unsigned long, in6_maxmtu) = 0;
94 #define EUI64_GBIT	0x01
95 #define EUI64_UBIT	0x02
96 #define EUI64_TO_IFID(in6)	do {(in6)->s6_addr[8] ^= EUI64_UBIT; } while (0)
125 #if 0  in get_rand_ifid()
150 	return 0;  in get_rand_ifid()
162 	if (bcmp(nullbuf, seed0, sizeof(nullbuf)) == 0) {  in generate_tmp_ifid()
165 		for (i = 0; i < 2; i++) {  in generate_tmp_ifid()
176 	if (0) {		/* for debugging purposes only */  in generate_tmp_ifid()
180 		for (i = 0; i < 16; i++)  in generate_tmp_ifid()
194 	 * left-most bit is numbered 0) to zero.  in generate_tmp_ifid()
197 	ret[0] &= ~EUI64_UBIT;  in generate_tmp_ifid()
204 	if (bcmp(nullbuf, ret, sizeof(nullbuf)) == 0) {  in generate_tmp_ifid()
209 		val32 = 1 + (val32 % (0xffffffff - 1));  in generate_tmp_ifid()
220 	if (0) {		/* for debugging purposes only */  in generate_tmp_ifid()
224 		for (i = 0; i < 16; i++)  in generate_tmp_ifid()
229 	return 0;  in generate_tmp_ifid()
245 	static u_int8_t allzero[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };  in in6_get_hw_ifid()
247 		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };  in in6_get_hw_ifid()
257 		if (sdl->sdl_alen == 0)  in in6_get_hw_ifid()
290 		if (bcmp(addr, allzero, addrlen) == 0)  in in6_get_hw_ifid()
292 		if (bcmp(addr, allone, addrlen) == 0)  in in6_get_hw_ifid()
299 			in6->s6_addr[8] = addr[0];  in in6_get_hw_ifid()
302 			in6->s6_addr[11] = 0xff;  in in6_get_hw_ifid()
303 			in6->s6_addr[12] = 0xfe;  in in6_get_hw_ifid()
341 	if ((in6->s6_addr[8] & ~(EUI64_GBIT | EUI64_UBIT)) == 0x00 &&  in in6_get_hw_ifid()
342 	    bcmp(&in6->s6_addr[9], allzero, 7) == 0)  in in6_get_hw_ifid()
345 	return 0;  in in6_get_hw_ifid()
364 	if (in6_get_hw_ifid(ifp0, in6) == 0) {  in get_ifid()
371 	if (altifp && in6_get_hw_ifid(altifp, in6) == 0) {  in get_ifid()
381 		if (in6_get_hw_ifid(ifp, in6) != 0)  in get_ifid()
397 	if (get_rand_ifid(ifp, in6) == 0) {  in get_ifid()
412 	return 0;  in get_ifid()
433 	ifra.ifra_addr.sin6_addr.s6_addr32[0] = htonl(0xfe800000);  in in6_ifattach_linklocal()
434 	ifra.ifra_addr.sin6_addr.s6_addr32[1] = 0;  in in6_ifattach_linklocal()
435 	if ((ifp->if_flags & IFF_LOOPBACK) != 0) {  in in6_ifattach_linklocal()
436 		ifra.ifra_addr.sin6_addr.s6_addr32[2] = 0;  in in6_ifattach_linklocal()
442 		if (error != 0) {  in in6_ifattach_linklocal()
462 				    IN6_IFAUPDATE_DADDELAY)) != 0) {  in in6_ifattach_linklocal()
478 	ia = in6ifa_ifpforlinklocal(ifp, 0);  in in6_ifattach_linklocal()
521 		if ((error = nd6_prelist_add(&pr0, NULL, &pr)) != 0)  in in6_ifattach_linklocal()
529 	return 0;  in in6_ifattach_linklocal()
559 	if ((error = in6_update_ifa(ifp, &ifra, NULL, 0)) != 0) {  in in6_ifattach_loopback()
566 	return 0;  in in6_ifattach_loopback()
575  * If oldmcprefix == 1, FF02:0:0:0:0:2::/96 is used for NI group address
576  * while it is FF02:0:0:0:0:2:FF00::/104 in RFC 4620. 
619 	n[(int)l] = '\0';  in in6_nigroup0()
633 	in6->s6_addr16[0] = IPV6_ADDR_INT16_MLL;  in in6_nigroup0()
635 	if (oldmcprefix == 0) {  in in6_nigroup0()
636 		in6->s6_addr8[12] = 0xff;  in in6_nigroup0()
646 	return 0;  in in6_nigroup0()
654 	return (in6_nigroup0(ifp, name, namelen, in6, 0));  in in6_nigroup()
700 	if ((ifp->if_flags & IFF_MULTICAST) == 0) {  in in6_ifattach()
710 	if ((ifp->if_flags & IFF_LOOPBACK) != 0) {  in in6_ifattach()
714 		ia = in6ifa_ifwithaddr(&in6addr_loopback, 0, false);  in in6_ifattach()
727 		ia = in6ifa_ifpforlinklocal(ifp, 0);  in in6_ifattach()
746  * is set to 0 in that case by in6_ifdetach_destroy().
797 	_in6_ifdetach(ifp, 0);  in in6_ifdetach_destroy()
808 	if (bcmp(ndi->randomid, nullbuf, sizeof(nullbuf)) == 0) {  in in6_get_tmpifid()
822 	return (0);  in in6_get_tmpifid()
844 		if (bcmp(ndi->randomid, nullbuf, sizeof(nullbuf)) != 0) {  in in6_tmpaddrtimer()