sys/netinet6/in6_ifattach.c

93 #define EUI64_TO_IFID(in6)	do {(in6)->s6_addr[8] ^= EUI64_UBIT; } while (0)
94 #define EUI64_GROUP(in6)	((in6)->s6_addr[8] & EUI64_GBIT)
95 #define EUI64_INDIVIDUAL(in6)	(!EUI64_GROUP(in6))
96 #define EUI64_LOCAL(in6)	((in6)->s6_addr[8] & EUI64_UBIT)
97 #define EUI64_UNIVERSAL(in6)	(!EUI64_LOCAL(in6))
99 #define IFID_LOCAL(in6)		(!EUI64_LOCAL(in6))
100 #define IFID_UNIVERSAL(in6)	(!EUI64_UNIVERSAL(in6))
109  * in6 - upper 64bits are preserved
112 get_rand_ifid(struct ifnet *ifp, struct in6_addr *in6)
138 	bcopy(digest, &in6->s6_addr[8], 8);
141 	in6->s6_addr[8] &= ~EUI64_GBIT;	/* g bit to "individual" */
142 	in6->s6_addr[8] |= EUI64_UBIT;	/* u bit to "local" */
145 	EUI64_TO_IFID(in6);
233  * in6 - upper 64bits are preserved
236 in6_get_hw_ifid(struct ifnet *ifp, struct in6_addr *in6)
306 			bcopy(addr, &in6->s6_addr[8], 8);
308 			in6->s6_addr[8] = addr[0];
309 			in6->s6_addr[9] = addr[1];
310 			in6->s6_addr[10] = addr[2];
311 			in6->s6_addr[11] = 0xff;
312 			in6->s6_addr[12] = 0xfe;
313 			in6->s6_addr[13] = addr[3];
314 			in6->s6_addr[14] = addr[4];
315 			in6->s6_addr[15] = addr[5];
329 		bzero(&in6->s6_addr[8], 8);
330 		in6->s6_addr[15] = addr[0];
335 		in6->s6_addr[8] &= ~EUI64_GBIT;	/* g bit to "individual" */
336 		in6->s6_addr[8] |= EUI64_UBIT;	/* u bit to "local" */
358 	if (EUI64_GROUP(in6)) {
364 	EUI64_TO_IFID(in6);
370 	if ((in6->s6_addr[8] & ~(EUI64_GBIT | EUI64_UBIT)) == 0x00 &&
371 	    bcmp(&in6->s6_addr[9], allzero, 7) == 0) {
389     struct in6_addr *in6)
394 	if (in6_get_hw_ifid(ifp0, in6) == 0) {
401 	if (altifp && in6_get_hw_ifid(altifp, in6) == 0) {
412 		if (in6_get_hw_ifid(ifp, in6) != 0)
419 		if (IFID_UNIVERSAL(in6)) {
430 	if (get_rand_ifid(ifp, in6) == 0) {
442 	    if_name(ifp0), in6->s6_addr[8], in6->s6_addr[9], in6->s6_addr[10],
443 	    in6->s6_addr[11], in6->s6_addr[12], in6->s6_addr[13],
444 	    in6->s6_addr[14], in6->s6_addr[15]));
629     struct in6_addr *in6, int oldmcprefix)
681 	bzero(in6, sizeof(*in6));
682 	in6->s6_addr16[0] = IPV6_ADDR_INT16_MLL;
683 	in6->s6_addr8[11] = 2;
685 		in6->s6_addr8[12] = 0xff;
687 		bcopy(digest, &in6->s6_addr8[13], 3);
690 		bcopy(digest, &in6->s6_addr32[3], sizeof(in6->s6_addr32[3]));
692 	if (in6_setscope(in6, ifp, NULL))
700     struct in6_addr *in6)
703 	return (in6_nigroup0(ifp, name, namelen, in6, 0));
708     struct in6_addr *in6)
711 	return (in6_nigroup0(ifp, name, namelen, in6, 1));
725 	struct in6_addr in6;
763 		in6 = in6addr_loopback;
764 		ifa = (struct ifaddr *)in6ifa_ifpwithaddr(ifp, &in6);