215 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_dest_hao()  local
219 	if (opt->dsthao) {  in ipv6_dest_hao()
223 	opt->dsthao = opt->dst1;  in ipv6_dest_hao()
224 	opt->dst1 = 0;  in ipv6_dest_hao()
284 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_destopt_rcv()  local
306 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);  in ipv6_destopt_rcv()
308 	dstbuf = opt->dst1;  in ipv6_destopt_rcv()
314 		opt = IP6CB(skb);  in ipv6_destopt_rcv()
316 		opt->nhoff = dstbuf;  in ipv6_destopt_rcv()
318 		opt->nhoff = opt->dst1;  in ipv6_destopt_rcv()
358 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_srh_rcv()  local
410 		opt->srcrt = skb_network_header_len(skb);  in ipv6_srh_rcv()
411 		opt->lastopt = opt->srcrt;  in ipv6_srh_rcv()
413 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_srh_rcv()
483 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rthdr_rcv()  local
537 		opt->lastopt = opt->srcrt = skb_network_header_len(skb);  in ipv6_rthdr_rcv()
539 		opt->dst0 = opt->dst1;  in ipv6_rthdr_rcv()
540 		opt->dst1 = 0;  in ipv6_rthdr_rcv()
541 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rthdr_rcv()
827 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_parse_hopopts()  local
849 	opt->flags |= IP6SKB_HOPBYHOP;  in ipv6_parse_hopopts()
853 		opt = IP6CB(skb);  in ipv6_parse_hopopts()
854 		opt->nhoff = sizeof(struct ipv6hdr);  in ipv6_parse_hopopts()
871 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr0()  argument
877 	ihdr = (struct rt0_hdr *) opt;  in ipv6_push_rthdr0()
896 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr4()  argument
902 	sr_ihdr = (struct ipv6_sr_hdr *)opt;  in ipv6_push_rthdr4()
945 			    struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr()  argument
948 	switch (opt->type) {  in ipv6_push_rthdr()
952 		ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
955 		ipv6_push_rthdr4(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
962 static void ipv6_push_exthdr(struct sk_buff *skb, u8 *proto, u8 type, struct ipv6_opt_hdr *opt)  in ipv6_push_exthdr()  argument
964 	struct ipv6_opt_hdr *h = skb_push(skb, ipv6_optlen(opt));  in ipv6_push_exthdr()
966 	memcpy(h, opt, ipv6_optlen(opt));  in ipv6_push_exthdr()
971 void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,  in ipv6_push_nfrag_opts()  argument
975 	if (opt->srcrt) {  in ipv6_push_nfrag_opts()
976 		ipv6_push_rthdr(skb, proto, opt->srcrt, daddr, saddr);  in ipv6_push_nfrag_opts()
981 		if (opt->dst0opt)  in ipv6_push_nfrag_opts()
982 			ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst0opt);  in ipv6_push_nfrag_opts()
984 	if (opt->hopopt)  in ipv6_push_nfrag_opts()
985 		ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);  in ipv6_push_nfrag_opts()
988 void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)  in ipv6_push_frag_opts()  argument
990 	if (opt->dst1opt)  in ipv6_push_frag_opts()
991 		ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst1opt);  in ipv6_push_frag_opts()
996 ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt)  in ipv6_dup_options()  argument
1000 	opt2 = sock_kmalloc(sk, opt->tot_len, GFP_ATOMIC);  in ipv6_dup_options()
1002 		long dif = (char *)opt2 - (char *)opt;  in ipv6_dup_options()
1003 		memcpy(opt2, opt, opt->tot_len);  in ipv6_dup_options()
1057 ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_renew_options()  argument
1064 	if (opt) {  in ipv6_renew_options()
1065 		if (newtype != IPV6_HOPOPTS && opt->hopopt)  in ipv6_renew_options()
1066 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt));  in ipv6_renew_options()
1067 		if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt)  in ipv6_renew_options()
1068 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt));  in ipv6_renew_options()
1069 		if (newtype != IPV6_RTHDR && opt->srcrt)  in ipv6_renew_options()
1070 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt));  in ipv6_renew_options()
1071 		if (newtype != IPV6_DSTOPTS && opt->dst1opt)  in ipv6_renew_options()
1072 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt));  in ipv6_renew_options()
1092 			  (opt ? opt->hopopt : NULL),  in ipv6_renew_options()
1095 			  (opt ? opt->dst0opt : NULL),  in ipv6_renew_options()
1099 			  (opt ? (struct ipv6_opt_hdr *)opt->srcrt : NULL),  in ipv6_renew_options()
1102 			  (opt ? opt->dst1opt : NULL),  in ipv6_renew_options()
1114 					  struct ipv6_txoptions *opt)  in ipv6_fixup_options()
1120 	if (opt && opt->dst0opt && !opt->srcrt) {  in ipv6_fixup_options()
1121 		if (opt_space != opt) {  in ipv6_fixup_options()
1122 			memcpy(opt_space, opt, sizeof(*opt_space));  in ipv6_fixup_options()
1123 			opt = opt_space;  in ipv6_fixup_options()
1125 		opt->opt_nflen -= ipv6_optlen(opt->dst0opt);  in ipv6_fixup_options()
1126 		opt->dst0opt = NULL;  in ipv6_fixup_options()
1129 	return opt;  in ipv6_fixup_options()
1145 				const struct ipv6_txoptions *opt,  in fl6_update_dst()  argument
1148 	if (!opt || !opt->srcrt)  in fl6_update_dst()
1153 	switch (opt->srcrt->type) {  in fl6_update_dst()
1157 		fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;  in fl6_update_dst()
1161 		struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)opt->srcrt;  in fl6_update_dst()