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)22static 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)30static 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)35static 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