93 void ip_send_check(struct iphdr *iph)  in ip_send_check()  argument
95 	iph->check = 0;  in ip_send_check()
96 	iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);  in ip_send_check()
102 	struct iphdr *iph = ip_hdr(skb);  in __ip_local_out()  local
106 	iph_set_totlen(iph, skb->len);  in __ip_local_out()
107 	ip_send_check(iph);  in __ip_local_out()
156 	struct iphdr *iph;  in ip_build_and_send_pkt()  local
161 	iph = ip_hdr(skb);  in ip_build_and_send_pkt()
162 	iph->version  = 4;  in ip_build_and_send_pkt()
163 	iph->ihl      = 5;  in ip_build_and_send_pkt()
164 	iph->tos      = tos;  in ip_build_and_send_pkt()
165 	iph->ttl      = ip_select_ttl(inet, &rt->dst);  in ip_build_and_send_pkt()
166 	iph->daddr    = (opt && opt->opt.srr ? opt->opt.faddr : daddr);  in ip_build_and_send_pkt()
167 	iph->saddr    = saddr;  in ip_build_and_send_pkt()
168 	iph->protocol = sk->sk_protocol;  in ip_build_and_send_pkt()
171 		iph->frag_off = htons(IP_DF);  in ip_build_and_send_pkt()
172 		iph->id = 0;  in ip_build_and_send_pkt()
174 		iph->frag_off = 0;  in ip_build_and_send_pkt()
179 			iph->id = (__force __be16)get_random_u16();  in ip_build_and_send_pkt()
181 			__ip_select_ident(net, iph, 1);  in ip_build_and_send_pkt()
185 		iph->ihl += opt->opt.optlen>>2;  in ip_build_and_send_pkt()
446 static void ip_copy_addrs(struct iphdr *iph, const struct flowi4 *fl4)  in ip_copy_addrs()  argument
451 	iph->saddr = fl4->saddr;  in ip_copy_addrs()
452 	iph->daddr = fl4->daddr;  in ip_copy_addrs()
464 	struct iphdr *iph;  in __ip_queue_xmit()  local
511 	iph = ip_hdr(skb);  in __ip_queue_xmit()
512 	*((__be16 *)iph) = htons((4 << 12) | (5 << 8) | (tos & 0xff));  in __ip_queue_xmit()
514 		iph->frag_off = htons(IP_DF);  in __ip_queue_xmit()
516 		iph->frag_off = 0;  in __ip_queue_xmit()
517 	iph->ttl      = ip_select_ttl(inet, &rt->dst);  in __ip_queue_xmit()
518 	iph->protocol = sk->sk_protocol;  in __ip_queue_xmit()
519 	ip_copy_addrs(iph, fl4);  in __ip_queue_xmit()
524 		iph->ihl += inet_opt->opt.optlen >> 2;  in __ip_queue_xmit()
581 	struct iphdr *iph = ip_hdr(skb);  in ip_fragment()  local
583 	if ((iph->frag_off & htons(IP_DF)) == 0)  in ip_fragment()
599 void ip_fraglist_init(struct sk_buff *skb, struct iphdr *iph,  in ip_fraglist_init()  argument
608 	iter->iph = iph;  in ip_fraglist_init()
613 	iph->tot_len = htons(first_len);  in ip_fraglist_init()
614 	iph->frag_off = htons(IP_MF);  in ip_fraglist_init()
615 	ip_send_check(iph);  in ip_fraglist_init()
622 	struct iphdr *iph = iter->iph;  in ip_fraglist_prepare()  local
630 	memcpy(skb_network_header(frag), iph, hlen);  in ip_fraglist_prepare()
631 	iter->iph = ip_hdr(frag);  in ip_fraglist_prepare()
632 	iph = iter->iph;  in ip_fraglist_prepare()
633 	iph->tot_len = htons(frag->len);  in ip_fraglist_prepare()
636 	iph->frag_off = htons(iter->offset >> 3);  in ip_fraglist_prepare()
638 		iph->frag_off |= htons(IP_MF);  in ip_fraglist_prepare()
640 	ip_send_check(iph);  in ip_fraglist_prepare()
648 	struct iphdr *iph = ip_hdr(skb);  in ip_frag_init()  local
658 	state->offset = (ntohs(iph->frag_off) & IP_OFFSET) << 3;  in ip_frag_init()
659 	state->not_last_frag = iph->frag_off & htons(IP_MF);  in ip_frag_init()
683 	struct iphdr *iph;  in ip_frag_next()  local
733 	iph = ip_hdr(skb2);  in ip_frag_next()
734 	iph->frag_off = htons((state->offset >> 3));  in ip_frag_next()
736 		iph->frag_off |= htons(IP_DF);  in ip_frag_next()
743 		iph->frag_off |= htons(IP_MF);  in ip_frag_next()
747 	iph->tot_len = htons(len + state->hlen);  in ip_frag_next()
749 	ip_send_check(iph);  in ip_frag_next()
765 	struct iphdr *iph;  in ip_do_fragment()  local
784 	iph = ip_hdr(skb);  in ip_do_fragment()
794 	hlen = iph->ihl * 4;  in ip_do_fragment()
812 		    ip_is_fragment(iph) ||  in ip_do_fragment()
837 		ip_fraglist_init(skb, iph, hlen, &iter);  in ip_do_fragment()
855 					ip_send_check(iter.iph);  in ip_do_fragment()
1391 	struct iphdr *iph;  in __ip_make_skb()  local
1439 	iph = ip_hdr(skb);  in __ip_make_skb()
1440 	iph->version = 4;  in __ip_make_skb()
1441 	iph->ihl = 5;  in __ip_make_skb()
1442 	iph->tos = (cork->tos != -1) ? cork->tos : inet->tos;  in __ip_make_skb()
1443 	iph->frag_off = df;  in __ip_make_skb()
1444 	iph->ttl = ttl;  in __ip_make_skb()
1445 	iph->protocol = sk->sk_protocol;  in __ip_make_skb()
1446 	ip_copy_addrs(iph, fl4);  in __ip_make_skb()
1450 		iph->ihl += opt->optlen >> 2;  in __ip_make_skb()
1464 	if (iph->protocol == IPPROTO_ICMP) {  in __ip_make_skb()