212 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_dest_hao()  local
216 	if (opt->dsthao) {  in ipv6_dest_hao()
220 	opt->dsthao = opt->dst1;  in ipv6_dest_hao()
221 	opt->dst1 = 0;  in ipv6_dest_hao()
281 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_destopt_rcv()  local
303 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);  in ipv6_destopt_rcv()
305 	dstbuf = opt->dst1;  in ipv6_destopt_rcv()
311 		opt = IP6CB(skb);  in ipv6_destopt_rcv()
313 		opt->nhoff = dstbuf;  in ipv6_destopt_rcv()
315 		opt->nhoff = opt->dst1;  in ipv6_destopt_rcv()
355 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_srh_rcv()  local
407 		opt->srcrt = skb_network_header_len(skb);  in ipv6_srh_rcv()
408 		opt->lastopt = opt->srcrt;  in ipv6_srh_rcv()
410 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_srh_rcv()
475 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rpl_srh_rcv()  local
524 		opt->srcrt = skb_network_header_len(skb);  in ipv6_rpl_srh_rcv()
525 		opt->lastopt = opt->srcrt;  in ipv6_rpl_srh_rcv()
527 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rpl_srh_rcv()
669 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_rthdr_rcv()  local
730 		opt->lastopt = opt->srcrt = skb_network_header_len(skb);  in ipv6_rthdr_rcv()
732 		opt->dst0 = opt->dst1;  in ipv6_rthdr_rcv()
733 		opt->dst1 = 0;  in ipv6_rthdr_rcv()
734 		opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);  in ipv6_rthdr_rcv()
1020 	struct inet6_skb_parm *opt = IP6CB(skb);  in ipv6_parse_hopopts()  local
1042 	opt->flags |= IP6SKB_HOPBYHOP;  in ipv6_parse_hopopts()
1046 		opt = IP6CB(skb);  in ipv6_parse_hopopts()
1047 		opt->nhoff = sizeof(struct ipv6hdr);  in ipv6_parse_hopopts()
1064 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr0()  argument
1070 	ihdr = (struct rt0_hdr *) opt;  in ipv6_push_rthdr0()
1089 			     struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr4()  argument
1095 	sr_ihdr = (struct ipv6_sr_hdr *)opt;  in ipv6_push_rthdr4()
1138 			    struct ipv6_rt_hdr *opt,  in ipv6_push_rthdr()  argument
1141 	switch (opt->type) {  in ipv6_push_rthdr()
1145 		ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1148 		ipv6_push_rthdr4(skb, proto, opt, addr_p, saddr);  in ipv6_push_rthdr()
1155 static void ipv6_push_exthdr(struct sk_buff *skb, u8 *proto, u8 type, struct ipv6_opt_hdr *opt)  in ipv6_push_exthdr()  argument
1157 	struct ipv6_opt_hdr *h = skb_push(skb, ipv6_optlen(opt));  in ipv6_push_exthdr()
1159 	memcpy(h, opt, ipv6_optlen(opt));  in ipv6_push_exthdr()
1164 void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,  in ipv6_push_nfrag_opts()  argument
1168 	if (opt->srcrt) {  in ipv6_push_nfrag_opts()
1169 		ipv6_push_rthdr(skb, proto, opt->srcrt, daddr, saddr);  in ipv6_push_nfrag_opts()
1174 		if (opt->dst0opt)  in ipv6_push_nfrag_opts()
1175 			ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst0opt);  in ipv6_push_nfrag_opts()
1177 	if (opt->hopopt)  in ipv6_push_nfrag_opts()
1178 		ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);  in ipv6_push_nfrag_opts()
1181 void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)  in ipv6_push_frag_opts()  argument
1183 	if (opt->dst1opt)  in ipv6_push_frag_opts()
1184 		ipv6_push_exthdr(skb, proto, NEXTHDR_DEST, opt->dst1opt);  in ipv6_push_frag_opts()
1189 ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt)  in ipv6_dup_options()  argument
1193 	opt2 = sock_kmalloc(sk, opt->tot_len, GFP_ATOMIC);  in ipv6_dup_options()
1195 		long dif = (char *)opt2 - (char *)opt;  in ipv6_dup_options()
1196 		memcpy(opt2, opt, opt->tot_len);  in ipv6_dup_options()
1249 ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_renew_options()  argument
1256 	if (opt) {  in ipv6_renew_options()
1257 		if (newtype != IPV6_HOPOPTS && opt->hopopt)  in ipv6_renew_options()
1258 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->hopopt));  in ipv6_renew_options()
1259 		if (newtype != IPV6_RTHDRDSTOPTS && opt->dst0opt)  in ipv6_renew_options()
1260 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst0opt));  in ipv6_renew_options()
1261 		if (newtype != IPV6_RTHDR && opt->srcrt)  in ipv6_renew_options()
1262 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->srcrt));  in ipv6_renew_options()
1263 		if (newtype != IPV6_DSTOPTS && opt->dst1opt)  in ipv6_renew_options()
1264 			tot_len += CMSG_ALIGN(ipv6_optlen(opt->dst1opt));  in ipv6_renew_options()
1284 			  (opt ? opt->hopopt : NULL),  in ipv6_renew_options()
1287 			  (opt ? opt->dst0opt : NULL),  in ipv6_renew_options()
1291 			  (opt ? (struct ipv6_opt_hdr *)opt->srcrt : NULL),  in ipv6_renew_options()
1294 			  (opt ? opt->dst1opt : NULL),  in ipv6_renew_options()
1306 					  struct ipv6_txoptions *opt)  in ipv6_fixup_options()
1312 	if (opt && opt->dst0opt && !opt->srcrt) {  in ipv6_fixup_options()
1313 		if (opt_space != opt) {  in ipv6_fixup_options()
1314 			memcpy(opt_space, opt, sizeof(*opt_space));  in ipv6_fixup_options()
1315 			opt = opt_space;  in ipv6_fixup_options()
1317 		opt->opt_nflen -= ipv6_optlen(opt->dst0opt);  in ipv6_fixup_options()
1318 		opt->dst0opt = NULL;  in ipv6_fixup_options()
1321 	return opt;  in ipv6_fixup_options()
1337 				const struct ipv6_txoptions *opt,  in fl6_update_dst()  argument
1340 	if (!opt || !opt->srcrt)  in fl6_update_dst()
1345 	switch (opt->srcrt->type) {  in fl6_update_dst()
1349 		fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;  in fl6_update_dst()
1353 		struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)opt->srcrt;  in fl6_update_dst()