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 
eth_hdr(const struct sk_buff * skb)22 static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
23 {
24 	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  */
skb_eth_hdr(const struct sk_buff * skb)30 static inline struct ethhdr *skb_eth_hdr(const struct sk_buff *skb)
31 {
32 	return (struct ethhdr *)skb->data;
33 }
34 
inner_eth_hdr(const struct sk_buff * skb)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 */
45