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1 | /* Copyright (C) 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
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5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
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8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
762a2918 | 13 | |
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14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, write to the Free | |
16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
17 | 02111-1307 USA. */ | |
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18 | |
19 | #ifndef _NET_IF_ETHER_H | |
20 | #define _NET_IF_ETHER_H 1 | |
21 | ||
22 | /* | |
23 | * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble | |
24 | * and FCS/CRC (frame check sequence). | |
25 | */ | |
26 | ||
27 | #define ETH_ALEN 6 /* Octets in one ethernet addr */ | |
28 | #define ETH_HLEN 14 /* Total octets in header. */ | |
29 | #define ETH_ZLEN 60 /* Min. octets in frame sans FCS */ | |
30 | #define ETH_DATA_LEN 1500 /* Max. octets in payload */ | |
31 | #define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */ | |
32 | ||
33 | /* | |
34 | * These are the defined Ethernet Protocol ID's. | |
35 | */ | |
36 | ||
37 | #define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */ | |
38 | #define ETH_P_ECHO 0x0200 /* Ethernet Echo packet */ | |
39 | #define ETH_P_PUP 0x0400 /* Xerox PUP packet */ | |
40 | #define ETH_P_IP 0x0800 /* Internet Protocol packet */ | |
41 | #define ETH_P_X25 0x0805 /* CCITT X.25 */ | |
42 | #define ETH_P_ARP 0x0806 /* Address Resolution packet */ | |
43 | #define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */ | |
44 | #define ETH_P_DEC 0x6000 /* DEC Assigned proto */ | |
45 | #define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */ | |
46 | #define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */ | |
47 | #define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */ | |
48 | #define ETH_P_LAT 0x6004 /* DEC LAT */ | |
49 | #define ETH_P_DIAG 0x6005 /* DEC Diagnostics */ | |
50 | #define ETH_P_CUST 0x6006 /* DEC Customer use */ | |
51 | #define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */ | |
52 | #define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */ | |
53 | #define ETH_P_ATALK 0x809B /* Appletalk DDP */ | |
54 | #define ETH_P_AARP 0x80F3 /* Appletalk AARP */ | |
55 | #define ETH_P_IPX 0x8137 /* IPX over DIX */ | |
56 | #define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */ | |
57 | ||
58 | /* | |
59 | * Non DIX types. Won't clash for 1500 types. | |
60 | */ | |
61 | ||
62 | #define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */ | |
63 | #define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */ | |
64 | #define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */ | |
65 | #define ETH_P_802_2 0x0004 /* 802.2 frames */ | |
66 | #define ETH_P_SNAP 0x0005 /* Internal only */ | |
67 | #define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */ | |
68 | #define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/ | |
69 | #define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */ | |
70 | #define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */ | |
71 | #define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/ | |
72 | #define ETH_P_TR_802_2 0x0011 /* 802.2 frames */ | |
73 | ||
74 | /* | |
75 | * This is an Ethernet frame header. | |
76 | */ | |
77 | ||
78 | struct ethhdr | |
79 | { | |
80 | unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ | |
81 | unsigned char h_source[ETH_ALEN]; /* source ether addr */ | |
82 | unsigned short int h_proto; /* packet type ID field */ | |
83 | }; | |
84 | ||
85 | #endif /* net/if_ether.h */ |