Cregit: Linux 5.17: ip.h

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
Arnaldo Carvalho de Melo	58	46.40%	4	44.44%
Linus Lüssing	30	24.00%	1	11.11%
Joseph Gasparakis	26	20.80%	1	11.11%
Linus Torvalds (pre-git)	7	5.60%	1	11.11%
Thomas Gleixner	2	1.60%	1	11.11%
David Howells	2	1.60%	1	11.11%
Total	125		9

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Definitions for the IP protocol.
 *
 * Version:	@(#)ip.h	1.0.2	04/28/93
 *
 * Authors:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 */
#ifndef _LINUX_IP_H
#define _LINUX_IP_H

#include <linux/skbuff.h>
#include <uapi/linux/ip.h>

static inline struct iphdr *ip_hdr(const struct sk_buff *skb)
{
	return (struct iphdr *)skb_network_header(skb);
}

static inline struct iphdr *inner_ip_hdr(const struct sk_buff *skb)
{
	return (struct iphdr *)skb_inner_network_header(skb);
}

static inline struct iphdr *ipip_hdr(const struct sk_buff *skb)
{
	return (struct iphdr *)skb_transport_header(skb);
}

static inline unsigned int ip_transport_len(const struct sk_buff *skb)
{
	return ntohs(ip_hdr(skb)->tot_len) - skb_network_header_len(skb);
}
#endif	/* _LINUX_IP_H */