sys/netinet6/nd6_nbr.c

73 #include <netinet/ip6.h>
122 	struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
124 	struct in6_addr saddr6 = ip6->ip6_src;
125 	struct in6_addr daddr6 = ip6->ip6_dst;
147 	nd_ns = (struct nd_neighbor_solicit *)((caddr_t)ip6 + off);
155 	ip6 = mtod(m, struct ip6_hdr *); /* adjust pointer for safety */
160 	if (ip6->ip6_hlim != 255) {
163 		    ip6->ip6_hlim, ip6_sprintf(ip6bufs, &ip6->ip6_src),
164 		    ip6_sprintf(ip6bufd, &ip6->ip6_dst), if_name(ifp)));
178 			    "(wrong ip6 dst)\n"));
220 	if (IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_src) && lladdr) {
406 	struct ip6_hdr *ip6;
417 	maxlen = sizeof(*ip6) + sizeof(*nd_ns);
439 	m->m_pkthdr.len = m->m_len = sizeof(*ip6) + icmp6len;
443 	ip6 = mtod(m, struct ip6_hdr *);
444 	ip6->ip6_flow = 0;
445 	ip6->ip6_vfc &= ~IPV6_VERSION_MASK;
446 	ip6->ip6_vfc |= IPV6_VERSION;
447 	/* ip6->ip6_plen will be set later */
448 	ip6->ip6_nxt = IPPROTO_ICMPV6;
449 	ip6->ip6_hlim = 255;
451 		ip6->ip6_dst = *daddr6;
453 		ip6->ip6_dst.s6_addr16[0] = IPV6_ADDR_INT16_MLL;
454 		ip6->ip6_dst.s6_addr16[1] = 0;
455 		ip6->ip6_dst.s6_addr32[1] = 0;
456 		ip6->ip6_dst.s6_addr32[2] = IPV6_ADDR_INT32_ONE;
457 		ip6->ip6_dst.s6_addr32[3] = taddr6->s6_addr32[3];
458 		ip6->ip6_dst.s6_addr8[12] = 0xff;
459 		if (in6_setscope(&ip6->ip6_dst, ifp, NULL) != 0)
483 			ip6->ip6_src = *saddr6;
490 			in6_splitscope(&ip6->ip6_dst, &dst6, &scopeid);
501 			ip6->ip6_src = src6;
511 		bzero(&ip6->ip6_src, sizeof(ip6->ip6_src));
513 	nd_ns = (struct nd_neighbor_solicit *)(ip6 + 1);
550 	 * net.inet6.ip6.dad_enhanced=0 disables this.
566 	ip6->ip6_plen = htons((u_short)icmp6len);
569 	    in6_cksum(m, IPPROTO_ICMPV6, sizeof(*ip6), icmp6len);
615 	struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
617 	struct in6_addr daddr6 = ip6->ip6_dst;
640 	if (ip6->ip6_hlim != 255) {
643 		    ip6->ip6_hlim, ip6_sprintf(ip6bufs, &ip6->ip6_src),
644 		    ip6_sprintf(ip6bufd, &ip6->ip6_dst), if_name(ifp)));
650 	nd_na = (struct nd_neighbor_advert *)((caddr_t)ip6 + off);
885 				rt6_flush(&ip6->ip6_src, ifp);
936 	struct ip6_hdr *ip6;
948 	maxlen = sizeof(*ip6) + sizeof(*nd_na);
974 	ip6 = mtod(m, struct ip6_hdr *);
975 	ip6->ip6_flow = 0;
976 	ip6->ip6_vfc &= ~IPV6_VERSION_MASK;
977 	ip6->ip6_vfc |= IPV6_VERSION;
978 	ip6->ip6_nxt = IPPROTO_ICMPV6;
979 	ip6->ip6_hlim = 255;
992 	ip6->ip6_dst = daddr6;
1007 	ip6->ip6_src = src6;
1008 	nd_na = (struct nd_neighbor_advert *)(ip6 + 1);
1055 	ip6->ip6_plen = htons((u_short)icmp6len);