LXR linux/include/linux/if

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * INET         An implementation of the TCP/IP protocol suite for the LINUX
   4 *              operating system.  INET is implemented using the  BSD Socket
   5 *              interface as the means of communication with the user level.
   6 *
   7 *              Global definitions for the Ethernet IEEE 802.3 interface.
   8 *
   9 * Version:     @(#)if_ether.h  1.0.1a  02/08/94
  10 *
  11 * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  12 *              Donald Becker, <becker@super.org>
  13 *              Alan Cox, <alan@lxorguk.ukuu.org.uk>
  14 *              Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
  15 */
  16#ifndef _LINUX_IF_ETHER_H
  17#define _LINUX_IF_ETHER_H
  18
  19#include <linux/skbuff.h>
  20#include <uapi/linux/if_ether.h>
  21
  22static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
  23{
  24        return (struct ethhdr *)skb_mac_header(skb);
  25}
  26
  27static inline struct ethhdr *inner_eth_hdr(const struct sk_buff *skb)
  28{
  29        return (struct ethhdr *)skb_inner_mac_header(skb);
  30}
  31
  32int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
  33
  34extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);
  35
  36#endif  /* _LINUX_IF_ETHER_H */
  37