1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the IP protocol.
7 *
8 * Version: @(#)ip.h 1.0.2 04/28/93
9 *
10 * Authors: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version
15 * 2 of the License, or (at your option) any later version.
16 */
17#ifndef _LINUX_IP_H
18#define _LINUX_IP_H
19
20#include <linux/skbuff.h>
21#include <uapi/linux/ip.h>
22
23static inline struct iphdr *ip_hdr(const struct sk_buff *skb)
24{
25 return (struct iphdr *)skb_network_header(skb);
26}
27
28static inline struct iphdr *inner_ip_hdr(const struct sk_buff *skb)
29{
30 return (struct iphdr *)skb_inner_network_header(skb);
31}
32
33static inline struct iphdr *ipip_hdr(const struct sk_buff *skb)
34{
35 return (struct iphdr *)skb_transport_header(skb);
36}
37#endif /* _LINUX_IP_H */
38