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1da177e4 LT |
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@redhat.com> | |
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 | ||
21 | #ifndef _LINUX_IF_ETHER_H | |
22 | #define _LINUX_IF_ETHER_H | |
23 | ||
ac57d042 PR |
24 | #include <linux/types.h> |
25 | ||
1da177e4 LT |
26 | /* |
27 | * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble | |
28 | * and FCS/CRC (frame check sequence). | |
29 | */ | |
30 | ||
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 */ | |
2053ed02 | 36 | #define ETH_FCS_LEN 4 /* Octets in the FCS */ |
1da177e4 LT |
37 | |
38 | /* | |
39 | * These are the defined Ethernet Protocol ID's. | |
40 | */ | |
41 | ||
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 */ | |
e1a80002 | 59 | #define ETH_P_TEB 0x6558 /* Trans Ether Bridging */ |
1da177e4 LT |
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 */ | |
2111f8b9 | 66 | #define ETH_P_PAUSE 0x8808 /* IEEE Pause frames. See 802.3 31B */ |
8f903c70 | 67 | #define ETH_P_SLOW 0x8809 /* Slow Protocol. See 802.3ad 43B */ |
1da177e4 LT |
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 | |
76 | * over Ethernet | |
77 | */ | |
fef1643b | 78 | #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ |
1da177e4 | 79 | #define ETH_P_AOE 0x88A2 /* ATA over Ethernet */ |
33a9c4da | 80 | #define ETH_P_TIPC 0x88CA /* TIPC */ |
91da11f8 | 81 | #define ETH_P_EDSA 0xDADA /* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */ |
1da177e4 LT |
82 | |
83 | /* | |
84 | * Non DIX types. Won't clash for 1500 types. | |
85 | */ | |
86 | ||
87 | #define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */ | |
88 | #define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */ | |
89 | #define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */ | |
90 | #define ETH_P_802_2 0x0004 /* 802.2 frames */ | |
91 | #define ETH_P_SNAP 0x0005 /* Internal only */ | |
92 | #define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */ | |
93 | #define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/ | |
94 | #define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */ | |
95 | #define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */ | |
cd05acfe | 96 | #define ETH_P_CAN 0x000C /* Controller Area Network */ |
1da177e4 LT |
97 | #define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/ |
98 | #define ETH_P_TR_802_2 0x0011 /* 802.2 frames */ | |
99 | #define ETH_P_MOBITEX 0x0015 /* Mobitex (kaz@cafe.net) */ | |
100 | #define ETH_P_CONTROL 0x0016 /* Card specific control frames */ | |
101 | #define ETH_P_IRDA 0x0017 /* Linux-IrDA */ | |
102 | #define ETH_P_ECONET 0x0018 /* Acorn Econet */ | |
103 | #define ETH_P_HDLC 0x0019 /* HDLC frames */ | |
104 | #define ETH_P_ARCNET 0x001A /* 1A for ArcNet :-) */ | |
cf85d08f | 105 | #define ETH_P_DSA 0x001B /* Distributed Switch Arch. */ |
396138f0 | 106 | #define ETH_P_TRAILER 0x001C /* Trailer switch tagging */ |
bce7b154 | 107 | #define ETH_P_PHONET 0x00F5 /* Nokia Phonet frames */ |
1da177e4 LT |
108 | |
109 | /* | |
110 | * This is an Ethernet frame header. | |
111 | */ | |
112 | ||
113 | struct ethhdr { | |
114 | unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ | |
115 | unsigned char h_source[ETH_ALEN]; /* source ether addr */ | |
ac57d042 | 116 | __be16 h_proto; /* packet type ID field */ |
1da177e4 LT |
117 | } __attribute__((packed)); |
118 | ||
119 | #ifdef __KERNEL__ | |
120 | #include <linux/skbuff.h> | |
121 | ||
122 | static inline struct ethhdr *eth_hdr(const struct sk_buff *skb) | |
123 | { | |
98e399f8 | 124 | return (struct ethhdr *)skb_mac_header(skb); |
1da177e4 | 125 | } |
20380731 | 126 | |
3b04ddde SH |
127 | int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr); |
128 | ||
2fab35d7 | 129 | #ifdef CONFIG_SYSCTL |
20380731 | 130 | extern struct ctl_table ether_table[]; |
1da177e4 | 131 | #endif |
0795af57 | 132 | |
7ffc49a6 MC |
133 | extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len); |
134 | ||
0795af57 JP |
135 | /* |
136 | * Display a 6 byte device address (MAC) in a readable format. | |
137 | */ | |
55b01e86 DM |
138 | extern char *print_mac(char *buf, const unsigned char *addr); |
139 | #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" | |
7ffc49a6 MC |
140 | #define MAC_BUF_SIZE 18 |
141 | #define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] __maybe_unused | |
0795af57 | 142 | |
2fab35d7 | 143 | #endif |
1da177e4 LT |
144 | |
145 | #endif /* _LINUX_IF_ETHER_H */ |