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