Line data    Source code

       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             : 
      22           4 : static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
      23             : {
      24           4 :         return (struct ethhdr *)skb_mac_header(skb);
      25             : }
      26             : 
      27             : /* Prefer this version in TX path, instead of
      28             :  * skb_reset_mac_header() + eth_hdr()
      29             :  */
      30             : static inline struct ethhdr *skb_eth_hdr(const struct sk_buff *skb)
      31             : {
      32             :         return (struct ethhdr *)skb->data;
      33             : }
      34             : 
      35             : static inline struct ethhdr *inner_eth_hdr(const struct sk_buff *skb)
      36             : {
      37             :         return (struct ethhdr *)skb_inner_mac_header(skb);
      38             : }
      39             : 
      40             : int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
      41             : 
      42             : extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);
      43             : 
      44             : #endif  /* _LINUX_IF_ETHER_H */