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.
6 * Global definitions for the Ethernet IEEE 802.3 interface.
8 * Version: @(#)if_ether.h 1.0.1a 02/08/94
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>
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.
21 #ifndef _LINUX_IF_ETHER_H
22 #define _LINUX_IF_ETHER_H
24 #include <linux/types.h>
27 * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
28 * and FCS/CRC (frame check sequence).
31 #define ETH_ALEN 6 /* Octets in one ethernet addr */
32 #define ETH_HLEN 14 /* Total octets in header. */
33 #define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
34 #define ETH_DATA_LEN 1500 /* Max. octets in payload */
35 #define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
36 #define ETH_FCS_LEN 4 /* Octets in the FCS */
39 * These are the defined Ethernet Protocol ID's.
42 #define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */
43 #define ETH_P_PUP 0x0200 /* Xerox PUP packet */
44 #define ETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */
45 #define ETH_P_IP 0x0800 /* Internet Protocol packet */
46 #define ETH_P_X25 0x0805 /* CCITT X.25 */
47 #define ETH_P_ARP 0x0806 /* Address Resolution packet */
48 #define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */
49 #define ETH_P_IEEEPUP 0x0a00 /* Xerox IEEE802.3 PUP packet */
50 #define ETH_P_IEEEPUPAT 0x0a01 /* Xerox IEEE802.3 PUP Addr Trans packet */
51 #define ETH_P_DEC 0x6000 /* DEC Assigned proto */
52 #define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */
53 #define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */
54 #define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */
55 #define ETH_P_LAT 0x6004 /* DEC LAT */
56 #define ETH_P_DIAG 0x6005 /* DEC Diagnostics */
57 #define ETH_P_CUST 0x6006 /* DEC Customer use */
58 #define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */
59 #define ETH_P_TEB 0x6558 /* Trans Ether Bridging */
60 #define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */
61 #define ETH_P_ATALK 0x809B /* Appletalk DDP */
62 #define ETH_P_AARP 0x80F3 /* Appletalk AARP */
63 #define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */
64 #define ETH_P_IPX 0x8137 /* IPX over DIX */
65 #define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */
66 #define ETH_P_PAUSE 0x8808 /* IEEE Pause frames. See 802.3 31B */
67 #define ETH_P_SLOW 0x8809 /* Slow Protocol. See 802.3ad 43B */
68 #define ETH_P_WCCP 0x883E /* Web-cache coordination protocol
69 * defined in draft-wilson-wrec-wccp-v2-00.txt */
70 #define ETH_P_PPP_DISC 0x8863 /* PPPoE discovery messages */
71 #define ETH_P_PPP_SES 0x8864 /* PPPoE session messages */
72 #define ETH_P_MPLS_UC 0x8847 /* MPLS Unicast traffic */
73 #define ETH_P_MPLS_MC 0x8848 /* MPLS Multicast traffic */
74 #define ETH_P_ATMMPOA 0x884c /* MultiProtocol Over ATM */
75 #define ETH_P_ATMFATE 0x8884 /* Frame-based ATM Transport
78 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
79 #define ETH_P_AOE 0x88A2 /* ATA over Ethernet */
80 #define ETH_P_TIPC 0x88CA /* TIPC */
81 #define ETH_P_1588 0x88F7 /* IEEE 1588 Timesync */
82 #define ETH_P_FCOE 0x8906 /* Fibre Channel over Ethernet */
83 #define ETH_P_FIP 0x8914 /* FCoE Initialization Protocol */
84 #define ETH_P_EDSA 0xDADA /* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
87 * Non DIX types. Won't clash for 1500 types.
90 #define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */
91 #define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */
92 #define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */
93 #define ETH_P_802_2 0x0004 /* 802.2 frames */
94 #define ETH_P_SNAP 0x0005 /* Internal only */
95 #define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */
96 #define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/
97 #define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */
98 #define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */
99 #define ETH_P_CAN 0x000C /* Controller Area Network */
100 #define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/
101 #define ETH_P_TR_802_2 0x0011 /* 802.2 frames */
102 #define ETH_P_MOBITEX 0x0015 /* Mobitex (kaz@cafe.net) */
103 #define ETH_P_CONTROL 0x0016 /* Card specific control frames */
104 #define ETH_P_IRDA 0x0017 /* Linux-IrDA */
105 #define ETH_P_ECONET 0x0018 /* Acorn Econet */
106 #define ETH_P_HDLC 0x0019 /* HDLC frames */
107 #define ETH_P_ARCNET 0x001A /* 1A for ArcNet :-) */
108 #define ETH_P_DSA 0x001B /* Distributed Switch Arch. */
109 #define ETH_P_TRAILER 0x001C /* Trailer switch tagging */
110 #define ETH_P_PHONET 0x00F5 /* Nokia Phonet frames */
111 #define ETH_P_IEEE802154 0x00F6 /* IEEE802.15.4 frame */
114 * This is an Ethernet frame header.
118 unsigned char h_dest
[ETH_ALEN
]; /* destination eth addr */
119 unsigned char h_source
[ETH_ALEN
]; /* source ether addr */
120 __be16 h_proto
; /* packet type ID field */
121 } __attribute__((packed
));
124 #include <linux/skbuff.h>
126 static inline struct ethhdr
*eth_hdr(const struct sk_buff
*skb
)
128 return (struct ethhdr
*)skb_mac_header(skb
);
131 int eth_header_parse(const struct sk_buff
*skb
, unsigned char *haddr
);
134 extern struct ctl_table ether_table
[];
137 extern ssize_t
sysfs_format_mac(char *buf
, const unsigned char *addr
, int len
);
140 * Display a 6 byte device address (MAC) in a readable format.
142 extern char *print_mac(char *buf
, const unsigned char *addr
);
143 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
144 #define MAC_BUF_SIZE 18
145 #define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] __maybe_unused
149 #endif /* _LINUX_IF_ETHER_H */
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