39 строки
1.0 KiB
C
39 строки
1.0 KiB
C
/* 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 */
|