include/linux/if_ether.h

   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  *              Global definitions for the Ethernet IEEE 802.3 interface.
   7  *
   8  * Version:     @(#)if_ether.h  1.0.1a  02/08/94
   9  *
  10  * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  11  *              Donald Becker, <becker@super.org>
  12  *              Alan Cox, <alan@lxorguk.ukuu.org.uk>
  13  *              Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
  14  *
  15  *              This program is free software; you can redistribute it and/or
  16  *              modify it under the terms of the GNU General Public License
  17  *              as published by the Free Software Foundation; either version
  18  *              2 of the License, or (at your option) any later version.
  19  */
  20 #ifndef _LINUX_IF_ETHER_H
  21 #define _LINUX_IF_ETHER_H
  22
  23 #include <linux/skbuff.h>
  24 #include <uapi/linux/if_ether.h>
  25
  26 static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
  27 {
  28         return (struct ethhdr *)skb_mac_header(skb);
  29 }
  30
  31 static inline struct ethhdr *inner_eth_hdr(const struct sk_buff *skb)
  32 {
  33         return (struct ethhdr *)skb_inner_mac_header(skb);
  34 }
  35
  36 int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
  37
  38 extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);
  39
  40 #endif  /* _LINUX_IF_ETHER_H */