231 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_dest_hao()  local
236 	if (opt->dsthao) {  in ipv6_dest_hao()
240 	opt->dsthao = opt->dst1;  in ipv6_dest_hao()
241 	opt->dst1 = 0;  in ipv6_dest_hao()
295 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_destopt_rcv()  local
317 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);  in ipv6_destopt_rcv()
319 	dstbuf = opt->dst1;  in ipv6_destopt_rcv()
324 		opt = IP6CB(skb);  in ipv6_destopt_rcv()
326 		opt->nhoff = dstbuf;  in ipv6_destopt_rcv()
328 		opt->nhoff = opt->dst1;  in ipv6_destopt_rcv()
368 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_srh_rcv()  local
417 		opt->srcrt = skb_network_header_len(skb);  in ipv6_srh_rcv()
418 		opt->lastopt = opt->srcrt;  in ipv6_srh_rcv()
420 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_srh_rcv()
483 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rpl_srh_rcv()  local
527 		opt->srcrt = skb_network_header_len(skb);  in ipv6_rpl_srh_rcv()
528 		opt->lastopt = opt->srcrt;  in ipv6_rpl_srh_rcv()
530 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rpl_srh_rcv()
649 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rthdr_rcv()  local
708 		opt->lastopt = opt->srcrt = skb_network_header_len(skb);  in ipv6_rthdr_rcv()
710 		opt->dst0 = opt->dst1;  in ipv6_rthdr_rcv()
711 		opt->dst1 = 0;  in ipv6_rthdr_rcv()
712 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rthdr_rcv()
969 		net_dbg_ratelimited("ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",  in ipv6_hop_jumbo()
1027 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_parse_hopopts()  local
1049 	opt->flags |= IP6SKB_HOPBYHOP;  in ipv6_parse_hopopts()
1052 		opt = IP6CB(skb);  in ipv6_parse_hopopts()
1053 		opt->nhoff = sizeof(struct ipv6hdr);  in ipv6_parse_hopopts()
1070 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr0()  argument
1076 	ihdr = (struct rt0_hdr *) opt;  in ipv6_push_rthdr0()
1095 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr4()  argument
1101 	sr_ihdr = (struct ipv6_sr_hdr *)opt;  in ipv6_push_rthdr4()
1144 			    struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr()  argument
1147 	switch (opt->type) {  in ipv6_push_rthdr()
1151 		ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1154 		ipv6_push_rthdr4(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1161 static void ipv6_push_exthdr(struct sk_buff *skb, u8 *proto, u8 type, struct ipv6_opt_hdr *opt)  in ipv6_push_exthdr()  argument
1163 	struct ipv6_opt_hdr *h = skb_push(skb, ipv6_optlen(opt));  in ipv6_push_exthdr()
1165 	memcpy(h, opt, ipv6_optlen(opt));  in ipv6_push_exthdr()
1170 void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,  in ipv6_push_nfrag_opts()  argument
1174 	if (opt->srcrt) {  in ipv6_push_nfrag_opts()
1175 		ipv6_push_rthdr(skb, proto, opt->srcrt, daddr, saddr);  in ipv6_push_nfrag_opts()
1180 		if (opt->dst0opt)  in ipv6_push_nfrag_opts()
1181 			ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst0opt);  in ipv6_push_nfrag_opts()
1183 	if (opt->hopopt)  in ipv6_push_nfrag_opts()
1184 		ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);  in ipv6_push_nfrag_opts()
1187 void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)  in ipv6_push_frag_opts()  argument
1189 	if (opt->dst1opt)  in ipv6_push_frag_opts()
1190 		ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst1opt);  in ipv6_push_frag_opts()
1195 ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt)  in ipv6_dup_options()  argument
1199 	opt2 = sock_kmalloc(sk, opt->tot_len, GFP_ATOMIC);  in ipv6_dup_options()
1201 		long dif = (char *)opt2 - (char *)opt;  in ipv6_dup_options()
1202 		memcpy(opt2, opt, opt->tot_len);  in ipv6_dup_options()
1238  * @opt: original options
1239  * @newtype: option type to replace in @opt
1242  * Returns a new set of options which is a copy of @opt with the
1245  * @opt may be NULL, in which case a new set of options is returned
1255 ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_renew_options()  argument
1262 	if (opt) {  in ipv6_renew_options()
1263 		if (newtype != IPV6_HOPOPTS && opt->hopopt)  in ipv6_renew_options()
1264 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt));  in ipv6_renew_options()
1265 		if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt)  in ipv6_renew_options()
1266 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt));  in ipv6_renew_options()
1267 		if (newtype != IPV6_RTHDR && opt->srcrt)  in ipv6_renew_options()
1268 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt));  in ipv6_renew_options()
1269 		if (newtype != IPV6_DSTOPTS && opt->dst1opt)  in ipv6_renew_options()
1270 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt));  in ipv6_renew_options()
1290 			  (opt ? opt->hopopt : NULL),  in ipv6_renew_options()
1293 			  (opt ? opt->dst0opt : NULL),  in ipv6_renew_options()
1297 			  (opt ? (struct ipv6_opt_hdr *)opt->srcrt : NULL),  in ipv6_renew_options()
1300 			  (opt ? opt->dst1opt : NULL),  in ipv6_renew_options()
1312 					    struct ipv6_txoptions *opt)  in __ipv6_fixup_options()
1318 	if (opt->dst0opt && !opt->srcrt) {  in __ipv6_fixup_options()
1319 		if (opt_space != opt) {  in __ipv6_fixup_options()
1320 			memcpy(opt_space, opt, sizeof(*opt_space));  in __ipv6_fixup_options()
1321 			opt = opt_space;  in __ipv6_fixup_options()
1323 		opt->opt_nflen -= ipv6_optlen(opt->dst0opt);  in __ipv6_fixup_options()
1324 		opt->dst0opt = NULL;  in __ipv6_fixup_options()
1327 	return opt;  in __ipv6_fixup_options()
1336  * @opt: struct ipv6_txoptions in which to look for srcrt opt
1343 				const struct ipv6_txoptions *opt,  in fl6_update_dst()  argument
1346 	if (!opt || !opt->srcrt)  in fl6_update_dst()
1351 	switch (opt->srcrt->type) {  in fl6_update_dst()
1355 		fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;  in fl6_update_dst()
1359 		struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)opt->srcrt;  in fl6_update_dst()