233 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_dest_hao()  local
237 	if (opt->dsthao) {  in ipv6_dest_hao()
241 	opt->dsthao = opt->dst1;  in ipv6_dest_hao()
242 	opt->dst1 = 0;  in ipv6_dest_hao()
292 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_destopt_rcv()  local
314 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);  in ipv6_destopt_rcv()
316 	dstbuf = opt->dst1;  in ipv6_destopt_rcv()
321 		opt = IP6CB(skb);  in ipv6_destopt_rcv()
323 		opt->nhoff = dstbuf;  in ipv6_destopt_rcv()
325 		opt->nhoff = opt->dst1;  in ipv6_destopt_rcv()
365 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_srh_rcv()  local
418 		opt->srcrt = skb_network_header_len(skb);  in ipv6_srh_rcv()
419 		opt->lastopt = opt->srcrt;  in ipv6_srh_rcv()
421 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_srh_rcv()
486 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rpl_srh_rcv()  local
535 		opt->srcrt = skb_network_header_len(skb);  in ipv6_rpl_srh_rcv()
536 		opt->lastopt = opt->srcrt;  in ipv6_rpl_srh_rcv()
538 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rpl_srh_rcv()
680 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rthdr_rcv()  local
741 		opt->lastopt = opt->srcrt = skb_network_header_len(skb);  in ipv6_rthdr_rcv()
743 		opt->dst0 = opt->dst1;  in ipv6_rthdr_rcv()
744 		opt->dst1 = 0;  in ipv6_rthdr_rcv()
745 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rthdr_rcv()
1064 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_parse_hopopts()  local
1086 	opt->flags |= IP6SKB_HOPBYHOP;  in ipv6_parse_hopopts()
1089 		opt = IP6CB(skb);  in ipv6_parse_hopopts()
1090 		opt->nhoff = sizeof(struct ipv6hdr);  in ipv6_parse_hopopts()
1107 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr0()  argument
1113 	ihdr = (struct rt0_hdr *) opt;  in ipv6_push_rthdr0()
1132 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr4()  argument
1138 	sr_ihdr = (struct ipv6_sr_hdr *)opt;  in ipv6_push_rthdr4()
1181 			    struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr()  argument
1184 	switch (opt->type) {  in ipv6_push_rthdr()
1188 		ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1191 		ipv6_push_rthdr4(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1198 static void ipv6_push_exthdr(struct sk_buff *skb, u8 *proto, u8 type, struct ipv6_opt_hdr *opt)  in ipv6_push_exthdr()  argument
1200 	struct ipv6_opt_hdr *h = skb_push(skb, ipv6_optlen(opt));  in ipv6_push_exthdr()
1202 	memcpy(h, opt, ipv6_optlen(opt));  in ipv6_push_exthdr()
1207 void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,  in ipv6_push_nfrag_opts()  argument
1211 	if (opt->srcrt) {  in ipv6_push_nfrag_opts()
1212 		ipv6_push_rthdr(skb, proto, opt->srcrt, daddr, saddr);  in ipv6_push_nfrag_opts()
1217 		if (opt->dst0opt)  in ipv6_push_nfrag_opts()
1218 			ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst0opt);  in ipv6_push_nfrag_opts()
1220 	if (opt->hopopt)  in ipv6_push_nfrag_opts()
1221 		ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);  in ipv6_push_nfrag_opts()
1224 void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)  in ipv6_push_frag_opts()  argument
1226 	if (opt->dst1opt)  in ipv6_push_frag_opts()
1227 		ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst1opt);  in ipv6_push_frag_opts()
1232 ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt)  in ipv6_dup_options()  argument
1236 	opt2 = sock_kmalloc(sk, opt->tot_len, GFP_ATOMIC);  in ipv6_dup_options()
1238 		long dif = (char *)opt2 - (char *)opt;  in ipv6_dup_options()
1239 		memcpy(opt2, opt, opt->tot_len);  in ipv6_dup_options()
1292 ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_renew_options()  argument
1299 	if (opt) {  in ipv6_renew_options()
1300 		if (newtype != IPV6_HOPOPTS && opt->hopopt)  in ipv6_renew_options()
1301 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt));  in ipv6_renew_options()
1302 		if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt)  in ipv6_renew_options()
1303 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt));  in ipv6_renew_options()
1304 		if (newtype != IPV6_RTHDR && opt->srcrt)  in ipv6_renew_options()
1305 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt));  in ipv6_renew_options()
1306 		if (newtype != IPV6_DSTOPTS && opt->dst1opt)  in ipv6_renew_options()
1307 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt));  in ipv6_renew_options()
1327 			  (opt ? opt->hopopt : NULL),  in ipv6_renew_options()
1330 			  (opt ? opt->dst0opt : NULL),  in ipv6_renew_options()
1334 			  (opt ? (struct ipv6_opt_hdr *)opt->srcrt : NULL),  in ipv6_renew_options()
1337 			  (opt ? opt->dst1opt : NULL),  in ipv6_renew_options()
1349 					  struct ipv6_txoptions *opt)  in ipv6_fixup_options()
1355 	if (opt && opt->dst0opt && !opt->srcrt) {  in ipv6_fixup_options()
1356 		if (opt_space != opt) {  in ipv6_fixup_options()
1357 			memcpy(opt_space, opt, sizeof(*opt_space));  in ipv6_fixup_options()
1358 			opt = opt_space;  in ipv6_fixup_options()
1360 		opt->opt_nflen -= ipv6_optlen(opt->dst0opt);  in ipv6_fixup_options()
1361 		opt->dst0opt = NULL;  in ipv6_fixup_options()
1364 	return opt;  in ipv6_fixup_options()
1380 				const struct ipv6_txoptions *opt,  in fl6_update_dst()  argument
1383 	if (!opt || !opt->srcrt)  in fl6_update_dst()
1388 	switch (opt->srcrt->type) {  in fl6_update_dst()
1392 		fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;  in fl6_update_dst()
1396 		struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)opt->srcrt;  in fl6_update_dst()