net/ipv4/ip_output.c

150 			  __be32 saddr, __be32 daddr, struct ip_options_rcu *opt,
159 	skb_push(skb, sizeof(struct iphdr) + (opt ? opt->opt.optlen : 0));
166 	iph->daddr    = (opt && opt->opt.srr ? opt->opt.faddr : daddr);
184 	if (opt && opt->opt.optlen) {
185 		iph->ihl += opt->opt.optlen>>2;
186 		ip_options_build(skb, &opt->opt, daddr, rt);
484 		if (inet_opt && inet_opt->opt.srr)
485 			daddr = inet_opt->opt.faddr;
505 	if (inet_opt && inet_opt->opt.is_strictroute && rt->rt_uses_gateway)
509 	skb_push(skb, sizeof(struct iphdr) + (inet_opt ? inet_opt->opt.optlen : 0));
523 	if (inet_opt && inet_opt->opt.optlen) {
524 		iph->ihl += inet_opt->opt.optlen >> 2;
525 		ip_options_build(skb, &inet_opt->opt, inet->inet_daddr, rt);
847 				if (first_frag && IPCB(skb)->opt.optlen) {
848 					/* ipcb->opt is not populated for frags
852 					IPCB(iter.frag)->opt.optlen =
853 						IPCB(skb)->opt.optlen;
964 	struct ip_options *opt = cork->opt;
987 	fragheaderlen = sizeof(struct iphdr) + (opt ? opt->optlen : 0);
993 			       mtu - (opt ? opt->optlen : 0));
1286 	struct ip_options_rcu *opt;
1302 	opt = ipc->opt;
1303 	if (opt) {
1304 		if (!cork->opt) {
1305 			cork->opt = kmalloc(sizeof(struct ip_options) + 40,
1307 			if (unlikely(!cork->opt))
1310 		memcpy(cork->opt, &opt->opt, sizeof(struct ip_options) + opt->opt.optlen);
1373 	kfree(cork->opt);
1374 	cork->opt = NULL;
1392 	struct ip_options *opt = NULL;
1434 		opt = cork->opt;
1453 	if (opt) {
1454 		iph->ihl += opt->optlen >> 2;
1455 		ip_options_build(skb, opt, cork->addr, rt);
1553 	cork->opt = NULL;
1601 	if (__ip_options_echo(net, &replyopts.opt.opt, skb, sopt))
1608 	if (replyopts.opt.opt.optlen) {
1609 		ipc.opt = &replyopts.opt;
1611 		if (replyopts.opt.opt.srr)
1612 			daddr = replyopts.opt.opt.faddr;