net/ipv6/ip6_output.c

264 	     __u32 mark, struct ipv6_txoptions *opt, int tclass, u32 priority)
282 	if (opt)
283 		head_room += opt->opt_nflen + opt->opt_flen;
293 	if (opt) {
294 		seg_len += opt->opt_nflen + opt->opt_flen;
296 		if (opt->opt_flen)
297 			ipv6_push_frag_opts(skb, opt, &proto);
299 		if (opt->opt_nflen)
300 			ipv6_push_nfrag_opts(skb, opt, &proto, &first_hop,
497 	struct inet6_skb_parm *opt = IP6CB(skb);
538 	if (unlikely(opt->flags & IP6SKB_ROUTERALERT)) {
539 		if (ip6_call_ra_chain(skb, ntohs(opt->ra)))
592 	    opt->srcrt == 0 && !skb_sec_path(skb)) {
1338 	struct ipv6_txoptions *nopt, *opt = ipc6->opt;
1348 	if (opt) {
1349 		if (WARN_ON(v6_cork->opt))
1352 		nopt = v6_cork->opt = kzalloc(sizeof(*opt), sk->sk_allocation);
1356 		nopt->tot_len = sizeof(*opt);
1357 		nopt->opt_flen = opt->opt_flen;
1358 		nopt->opt_nflen = opt->opt_nflen;
1360 		nopt->dst0opt = ip6_opt_dup(opt->dst0opt, sk->sk_allocation);
1361 		if (opt->dst0opt && !nopt->dst0opt)
1364 		nopt->dst1opt = ip6_opt_dup(opt->dst1opt, sk->sk_allocation);
1365 		if (opt->dst1opt && !nopt->dst1opt)
1368 		nopt->hopopt = ip6_opt_dup(opt->hopopt, sk->sk_allocation);
1369 		if (opt->hopopt && !nopt->hopopt)
1372 		nopt->srcrt = ip6_rthdr_dup(opt->srcrt, sk->sk_allocation);
1373 		if (opt->srcrt && !nopt->srcrt)
1428 	struct ipv6_txoptions *opt = v6_cork->opt;
1435 		exthdrlen = opt ? opt->opt_flen : 0;
1446 			(opt ? opt->opt_nflen : 0);
1449 		     (opt ? opt->opt_flen + opt->opt_nflen : 0) +
1828 		exthdrlen = (ipc6->opt ? ipc6->opt->opt_flen : 0);
1852 	if (v6_cork->opt) {
1853 		struct ipv6_txoptions *opt = v6_cork->opt;
1855 		kfree(opt->dst0opt);
1856 		kfree(opt->dst1opt);
1857 		kfree(opt->hopopt);
1858 		kfree(opt->srcrt);
1859 		kfree(opt);
1860 		v6_cork->opt = NULL;
1879 	struct ipv6_txoptions *opt = v6_cork->opt;
1908 	if (opt && opt->opt_flen)
1909 		ipv6_push_frag_opts(skb, opt, &proto);
1910 	if (opt && opt->opt_nflen)
1911 		ipv6_push_nfrag_opts(skb, opt, &proto, &final_dst, &fl6->saddr);
2012 	int exthdrlen = (ipc6->opt ? ipc6->opt->opt_flen : 0);
2024 	cork->base.opt = NULL;
2025 	v6_cork.opt = NULL;