181 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_dest_hao()  local
186 	if (opt->dsthao) {  in ipv6_dest_hao()
190 	opt->dsthao = opt->dst1;  in ipv6_dest_hao()
191 	opt->dst1 = 0;  in ipv6_dest_hao()
252 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_destopt_rcv()  local
267 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);  in ipv6_destopt_rcv()
269 	dstbuf = opt->dst1;  in ipv6_destopt_rcv()
274 		opt = IP6CB(skb);  in ipv6_destopt_rcv()
276 		opt->nhoff = dstbuf;  in ipv6_destopt_rcv()
278 		opt->nhoff = opt->dst1;  in ipv6_destopt_rcv()
295 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rthdr_rcv()  local
348 		opt->lastopt = opt->srcrt = skb_network_header_len(skb);  in ipv6_rthdr_rcv()
350 		opt->dst0 = opt->dst1;  in ipv6_rthdr_rcv()
351 		opt->dst1 = 0;  in ipv6_rthdr_rcv()
352 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rthdr_rcv()
620 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_parse_hopopts()  local
635 	opt->flags |= IP6SKB_HOPBYHOP;  in ipv6_parse_hopopts()
638 		opt = IP6CB(skb);  in ipv6_parse_hopopts()
639 		opt->nhoff = sizeof(struct ipv6hdr);  in ipv6_parse_hopopts()
656 			    struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr()  argument
662 	ihdr = (struct rt0_hdr *) opt;  in ipv6_push_rthdr()
680 static void ipv6_push_exthdr(struct sk_buff *skb, u8 *proto, u8 type, struct ipv6_opt_hdr *opt)  in ipv6_push_exthdr()  argument
682 	struct ipv6_opt_hdr *h = (struct ipv6_opt_hdr *)skb_push(skb, ipv6_optlen(opt));  in ipv6_push_exthdr()
684 	memcpy(h, opt, ipv6_optlen(opt));  in ipv6_push_exthdr()
689 void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,  in ipv6_push_nfrag_opts()  argument
693 	if (opt->srcrt) {  in ipv6_push_nfrag_opts()
694 		ipv6_push_rthdr(skb, proto, opt->srcrt, daddr);  in ipv6_push_nfrag_opts()
699 		if (opt->dst0opt)  in ipv6_push_nfrag_opts()
700 			ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst0opt);  in ipv6_push_nfrag_opts()
702 	if (opt->hopopt)  in ipv6_push_nfrag_opts()
703 		ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);  in ipv6_push_nfrag_opts()
707 void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)  in ipv6_push_frag_opts()  argument
709 	if (opt->dst1opt)  in ipv6_push_frag_opts()
710 		ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst1opt);  in ipv6_push_frag_opts()
714 ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt)  in ipv6_dup_options()  argument
718 	opt2 = sock_kmalloc(sk, opt->tot_len, GFP_ATOMIC);  in ipv6_dup_options()
720 		long dif = (char *)opt2 - (char *)opt;  in ipv6_dup_options()
721 		memcpy(opt2, opt, opt->tot_len);  in ipv6_dup_options()
762 ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_renew_options()  argument
771 	if (opt) {  in ipv6_renew_options()
772 		if (newtype != IPV6_HOPOPTS && opt->hopopt)  in ipv6_renew_options()
773 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt));  in ipv6_renew_options()
774 		if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt)  in ipv6_renew_options()
775 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt));  in ipv6_renew_options()
776 		if (newtype != IPV6_RTHDR && opt->srcrt)  in ipv6_renew_options()
777 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt));  in ipv6_renew_options()
778 		if (newtype != IPV6_DSTOPTS && opt->dst1opt)  in ipv6_renew_options()
779 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt));  in ipv6_renew_options()
798 	err = ipv6_renew_option(opt ? opt->hopopt : NULL, newopt, newoptlen,  in ipv6_renew_options()
804 	err = ipv6_renew_option(opt ? opt->dst0opt : NULL, newopt, newoptlen,  in ipv6_renew_options()
810 	err = ipv6_renew_option(opt ? opt->srcrt : NULL, newopt, newoptlen,  in ipv6_renew_options()
816 	err = ipv6_renew_option(opt ? opt->dst1opt : NULL, newopt, newoptlen,  in ipv6_renew_options()
834 					  struct ipv6_txoptions *opt)  in ipv6_fixup_options()
840 	if (opt && opt->dst0opt && !opt->srcrt) {  in ipv6_fixup_options()
841 		if (opt_space != opt) {  in ipv6_fixup_options()
842 			memcpy(opt_space, opt, sizeof(*opt_space));  in ipv6_fixup_options()
843 			opt = opt_space;  in ipv6_fixup_options()
845 		opt->opt_nflen -= ipv6_optlen(opt->dst0opt);  in ipv6_fixup_options()
846 		opt->dst0opt = NULL;  in ipv6_fixup_options()
849 	return opt;  in ipv6_fixup_options()
865 				const struct ipv6_txoptions *opt,  in fl6_update_dst()  argument
868 	if (!opt || !opt->srcrt)  in fl6_update_dst()
872 	fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;  in fl6_update_dst()