211 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_dest_hao()  local
215 	if (opt->dsthao) {  in ipv6_dest_hao()
219 	opt->dsthao = opt->dst1;  in ipv6_dest_hao()
220 	opt->dst1 = 0;  in ipv6_dest_hao()
280 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_destopt_rcv()  local
302 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);  in ipv6_destopt_rcv()
304 	dstbuf = opt->dst1;  in ipv6_destopt_rcv()
310 		opt = IP6CB(skb);  in ipv6_destopt_rcv()
312 		opt->nhoff = dstbuf;  in ipv6_destopt_rcv()
314 		opt->nhoff = opt->dst1;  in ipv6_destopt_rcv()
354 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_srh_rcv()  local
406 		opt->srcrt = skb_network_header_len(skb);  in ipv6_srh_rcv()
407 		opt->lastopt = opt->srcrt;  in ipv6_srh_rcv()
409 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_srh_rcv()
474 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rpl_srh_rcv()  local
523 		opt->srcrt = skb_network_header_len(skb);  in ipv6_rpl_srh_rcv()
524 		opt->lastopt = opt->srcrt;  in ipv6_rpl_srh_rcv()
526 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rpl_srh_rcv()
668 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rthdr_rcv()  local
729 		opt->lastopt = opt->srcrt = skb_network_header_len(skb);  in ipv6_rthdr_rcv()
731 		opt->dst0 = opt->dst1;  in ipv6_rthdr_rcv()
732 		opt->dst1 = 0;  in ipv6_rthdr_rcv()
733 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rthdr_rcv()
1019 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_parse_hopopts()  local
1041 	opt->flags |= IP6SKB_HOPBYHOP;  in ipv6_parse_hopopts()
1045 		opt = IP6CB(skb);  in ipv6_parse_hopopts()
1046 		opt->nhoff = sizeof(struct ipv6hdr);  in ipv6_parse_hopopts()
1063 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr0()  argument
1069 	ihdr = (struct rt0_hdr *) opt;  in ipv6_push_rthdr0()
1088 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr4()  argument
1094 	sr_ihdr = (struct ipv6_sr_hdr *)opt;  in ipv6_push_rthdr4()
1137 			    struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr()  argument
1140 	switch (opt->type) {  in ipv6_push_rthdr()
1144 		ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1147 		ipv6_push_rthdr4(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1154 static void ipv6_push_exthdr(struct sk_buff *skb, u8 *proto, u8 type, struct ipv6_opt_hdr *opt)  in ipv6_push_exthdr()  argument
1156 	struct ipv6_opt_hdr *h = skb_push(skb, ipv6_optlen(opt));  in ipv6_push_exthdr()
1158 	memcpy(h, opt, ipv6_optlen(opt));  in ipv6_push_exthdr()
1163 void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,  in ipv6_push_nfrag_opts()  argument
1167 	if (opt->srcrt) {  in ipv6_push_nfrag_opts()
1168 		ipv6_push_rthdr(skb, proto, opt->srcrt, daddr, saddr);  in ipv6_push_nfrag_opts()
1173 		if (opt->dst0opt)  in ipv6_push_nfrag_opts()
1174 			ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst0opt);  in ipv6_push_nfrag_opts()
1176 	if (opt->hopopt)  in ipv6_push_nfrag_opts()
1177 		ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);  in ipv6_push_nfrag_opts()
1180 void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)  in ipv6_push_frag_opts()  argument
1182 	if (opt->dst1opt)  in ipv6_push_frag_opts()
1183 		ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst1opt);  in ipv6_push_frag_opts()
1188 ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt)  in ipv6_dup_options()  argument
1192 	opt2 = sock_kmalloc(sk, opt->tot_len, GFP_ATOMIC);  in ipv6_dup_options()
1194 		long dif = (char *)opt2 - (char *)opt;  in ipv6_dup_options()
1195 		memcpy(opt2, opt, opt->tot_len);  in ipv6_dup_options()
1248 ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_renew_options()  argument
1255 	if (opt) {  in ipv6_renew_options()
1256 		if (newtype != IPV6_HOPOPTS && opt->hopopt)  in ipv6_renew_options()
1257 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt));  in ipv6_renew_options()
1258 		if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt)  in ipv6_renew_options()
1259 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt));  in ipv6_renew_options()
1260 		if (newtype != IPV6_RTHDR && opt->srcrt)  in ipv6_renew_options()
1261 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt));  in ipv6_renew_options()
1262 		if (newtype != IPV6_DSTOPTS && opt->dst1opt)  in ipv6_renew_options()
1263 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt));  in ipv6_renew_options()
1283 			  (opt ? opt->hopopt : NULL),  in ipv6_renew_options()
1286 			  (opt ? opt->dst0opt : NULL),  in ipv6_renew_options()
1290 			  (opt ? (struct ipv6_opt_hdr *)opt->srcrt : NULL),  in ipv6_renew_options()
1293 			  (opt ? opt->dst1opt : NULL),  in ipv6_renew_options()
1305 					  struct ipv6_txoptions *opt)  in ipv6_fixup_options()
1311 	if (opt && opt->dst0opt && !opt->srcrt) {  in ipv6_fixup_options()
1312 		if (opt_space != opt) {  in ipv6_fixup_options()
1313 			memcpy(opt_space, opt, sizeof(*opt_space));  in ipv6_fixup_options()
1314 			opt = opt_space;  in ipv6_fixup_options()
1316 		opt->opt_nflen -= ipv6_optlen(opt->dst0opt);  in ipv6_fixup_options()
1317 		opt->dst0opt = NULL;  in ipv6_fixup_options()
1320 	return opt;  in ipv6_fixup_options()
1336 				const struct ipv6_txoptions *opt,  in fl6_update_dst()  argument
1339 	if (!opt || !opt->srcrt)  in fl6_update_dst()
1344 	switch (opt->srcrt->type) {  in fl6_update_dst()
1348 		fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;  in fl6_update_dst()
1352 		struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)opt->srcrt;  in fl6_update_dst()