234 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_dest_hao()  local
239 	if (opt->dsthao) {  in ipv6_dest_hao()
243 	opt->dsthao = opt->dst1;  in ipv6_dest_hao()
244 	opt->dst1 = 0;  in ipv6_dest_hao()
298 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_destopt_rcv()  local
320 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);  in ipv6_destopt_rcv()
322 	dstbuf = opt->dst1;  in ipv6_destopt_rcv()
327 		opt = IP6CB(skb);  in ipv6_destopt_rcv()
329 		opt->nhoff = dstbuf;  in ipv6_destopt_rcv()
331 		opt->nhoff = opt->dst1;  in ipv6_destopt_rcv()
371 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_srh_rcv()  local
419 		opt->srcrt = skb_network_header_len(skb);  in ipv6_srh_rcv()
420 		opt->lastopt = opt->srcrt;  in ipv6_srh_rcv()
422 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_srh_rcv()
485 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rpl_srh_rcv()  local
529 		opt->srcrt = skb_network_header_len(skb);  in ipv6_rpl_srh_rcv()
530 		opt->lastopt = opt->srcrt;  in ipv6_rpl_srh_rcv()
532 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rpl_srh_rcv()
651 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rthdr_rcv()  local
713 		opt->lastopt = opt->srcrt = skb_network_header_len(skb);  in ipv6_rthdr_rcv()
715 		opt->dst0 = opt->dst1;  in ipv6_rthdr_rcv()
716 		opt->dst1 = 0;  in ipv6_rthdr_rcv()
717 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rthdr_rcv()
977 		net_dbg_ratelimited("ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",  in ipv6_hop_jumbo()
1035 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_parse_hopopts()  local
1057 	opt->flags |= IP6SKB_HOPBYHOP;  in ipv6_parse_hopopts()
1060 		opt = IP6CB(skb);  in ipv6_parse_hopopts()
1061 		opt->nhoff = sizeof(struct ipv6hdr);  in ipv6_parse_hopopts()
1078 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr0()  argument
1084 	ihdr = (struct rt0_hdr *) opt;  in ipv6_push_rthdr0()
1103 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr4()  argument
1109 	sr_ihdr = (struct ipv6_sr_hdr *)opt;  in ipv6_push_rthdr4()
1152 			    struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr()  argument
1155 	switch (opt->type) {  in ipv6_push_rthdr()
1159 		ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1162 		ipv6_push_rthdr4(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1169 static void ipv6_push_exthdr(struct sk_buff *skb, u8 *proto, u8 type, struct ipv6_opt_hdr *opt)  in ipv6_push_exthdr()  argument
1171 	struct ipv6_opt_hdr *h = skb_push(skb, ipv6_optlen(opt));  in ipv6_push_exthdr()
1173 	memcpy(h, opt, ipv6_optlen(opt));  in ipv6_push_exthdr()
1178 void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,  in ipv6_push_nfrag_opts()  argument
1182 	if (opt->srcrt) {  in ipv6_push_nfrag_opts()
1183 		ipv6_push_rthdr(skb, proto, opt->srcrt, daddr, saddr);  in ipv6_push_nfrag_opts()
1188 		if (opt->dst0opt)  in ipv6_push_nfrag_opts()
1189 			ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst0opt);  in ipv6_push_nfrag_opts()
1191 	if (opt->hopopt)  in ipv6_push_nfrag_opts()
1192 		ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);  in ipv6_push_nfrag_opts()
1195 void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)  in ipv6_push_frag_opts()  argument
1197 	if (opt->dst1opt)  in ipv6_push_frag_opts()
1198 		ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst1opt);  in ipv6_push_frag_opts()
1203 ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt)  in ipv6_dup_options()  argument
1207 	opt2 = sock_kmalloc(sk, opt->tot_len, GFP_ATOMIC);  in ipv6_dup_options()
1209 		long dif = (char *)opt2 - (char *)opt;  in ipv6_dup_options()
1210 		memcpy(opt2, opt, opt->tot_len);  in ipv6_dup_options()
1246  * @opt: original options
1247  * @newtype: option type to replace in @opt
1250  * Returns a new set of options which is a copy of @opt with the
1253  * @opt may be NULL, in which case a new set of options is returned
1263 ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_renew_options()  argument
1270 	if (opt) {  in ipv6_renew_options()
1271 		if (newtype != IPV6_HOPOPTS && opt->hopopt)  in ipv6_renew_options()
1272 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt));  in ipv6_renew_options()
1273 		if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt)  in ipv6_renew_options()
1274 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt));  in ipv6_renew_options()
1275 		if (newtype != IPV6_RTHDR && opt->srcrt)  in ipv6_renew_options()
1276 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt));  in ipv6_renew_options()
1277 		if (newtype != IPV6_DSTOPTS && opt->dst1opt)  in ipv6_renew_options()
1278 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt));  in ipv6_renew_options()
1298 			  (opt ? opt->hopopt : NULL),  in ipv6_renew_options()
1301 			  (opt ? opt->dst0opt : NULL),  in ipv6_renew_options()
1305 			  (opt ? (struct ipv6_opt_hdr *)opt->srcrt : NULL),  in ipv6_renew_options()
1308 			  (opt ? opt->dst1opt : NULL),  in ipv6_renew_options()
1320 					    struct ipv6_txoptions *opt)  in __ipv6_fixup_options()
1326 	if (opt->dst0opt && !opt->srcrt) {  in __ipv6_fixup_options()
1327 		if (opt_space != opt) {  in __ipv6_fixup_options()
1328 			memcpy(opt_space, opt, sizeof(*opt_space));  in __ipv6_fixup_options()
1329 			opt = opt_space;  in __ipv6_fixup_options()
1331 		opt->opt_nflen -= ipv6_optlen(opt->dst0opt);  in __ipv6_fixup_options()
1332 		opt->dst0opt = NULL;  in __ipv6_fixup_options()
1335 	return opt;  in __ipv6_fixup_options()
1344  * @opt: struct ipv6_txoptions in which to look for srcrt opt
1351 				const struct ipv6_txoptions *opt,  in fl6_update_dst()  argument
1354 	if (!opt || !opt->srcrt)  in fl6_update_dst()
1359 	switch (opt->srcrt->type) {  in fl6_update_dst()
1363 		fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;  in fl6_update_dst()
1367 		struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)opt->srcrt;  in fl6_update_dst()