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85 lines
3.5 KiB
C
85 lines
3.5 KiB
C
/* Copyright (C) 1997-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _NET_IF_ETHER_H
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#define _NET_IF_ETHER_H 1
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/*
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* IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
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* and FCS/CRC (frame check sequence).
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*/
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#define ETH_ALEN 6 /* Octets in one ethernet addr */
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#define ETH_HLEN 14 /* Total octets in header. */
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#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
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#define ETH_DATA_LEN 1500 /* Max. octets in payload */
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#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
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/*
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* These are the defined Ethernet Protocol ID's.
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*/
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#define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */
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#define ETH_P_ECHO 0x0200 /* Ethernet Echo packet */
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#define ETH_P_PUP 0x0400 /* Xerox PUP packet */
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#define ETH_P_IP 0x0800 /* Internet Protocol packet */
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#define ETH_P_X25 0x0805 /* CCITT X.25 */
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#define ETH_P_ARP 0x0806 /* Address Resolution packet */
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#define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */
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#define ETH_P_DEC 0x6000 /* DEC Assigned proto */
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#define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */
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#define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */
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#define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */
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#define ETH_P_LAT 0x6004 /* DEC LAT */
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#define ETH_P_DIAG 0x6005 /* DEC Diagnostics */
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#define ETH_P_CUST 0x6006 /* DEC Customer use */
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#define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */
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#define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */
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#define ETH_P_ATALK 0x809B /* Appletalk DDP */
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#define ETH_P_AARP 0x80F3 /* Appletalk AARP */
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#define ETH_P_IPX 0x8137 /* IPX over DIX */
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#define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */
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/*
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* Non DIX types. Won't clash for 1500 types.
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*/
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#define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */
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#define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */
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#define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */
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#define ETH_P_802_2 0x0004 /* 802.2 frames */
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#define ETH_P_SNAP 0x0005 /* Internal only */
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#define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */
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#define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/
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#define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */
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#define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */
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#define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/
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#define ETH_P_TR_802_2 0x0011 /* 802.2 frames */
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/*
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* This is an Ethernet frame header.
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*/
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struct ethhdr
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{
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unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
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unsigned char h_source[ETH_ALEN]; /* source ether addr */
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unsigned short int h_proto; /* packet type ID field */
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};
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#endif /* net/if_ether.h */
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