Home Home > GIT Browse
summaryrefslogtreecommitdiff
blob: 3d9c6750af627ed9e28277e6169478e2effef0bf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
/* 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 */