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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */2/*3 * INET An implementation of the TCP/IP protocol suite for the LINUX4 * operating system. INET is implemented using the BSD Socket5 * 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 02/08/9410 *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 * This program is free software; you can redistribute it and/or17 * modify it under the terms of the GNU General Public License18 * as published by the Free Software Foundation; either version19 * 2 of the License, or (at your option) any later version.20 */21 22#ifndef _UAPI_LINUX_IF_ETHER_H23#define _UAPI_LINUX_IF_ETHER_H24 25#include <linux/types.h>26 27/*28 * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble29 * and FCS/CRC (frame check sequence).30 */31 32#define ETH_ALEN 6 /* Octets in one ethernet addr */33#define ETH_TLEN 2 /* Octets in ethernet type field */34#define ETH_HLEN 14 /* Total octets in header. */35#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */36#define ETH_DATA_LEN 1500 /* Max. octets in payload */37#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */38#define ETH_FCS_LEN 4 /* Octets in the FCS */39 40#define ETH_MIN_MTU 68 /* Min IPv4 MTU per RFC791 */41#define ETH_MAX_MTU 0xFFFFU /* 65535, same as IP_MAX_MTU */42 43/*44 * These are the defined Ethernet Protocol ID's.45 */46 47#define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */48#define ETH_P_PUP 0x0200 /* Xerox PUP packet */49#define ETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */50#define ETH_P_TSN 0x22F0 /* TSN (IEEE 1722) packet */51#define ETH_P_ERSPAN2 0x22EB /* ERSPAN version 2 (type III) */52#define ETH_P_IP 0x0800 /* Internet Protocol packet */53#define ETH_P_X25 0x0805 /* CCITT X.25 */54#define ETH_P_ARP 0x0806 /* Address Resolution packet */55#define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */56#define ETH_P_IEEEPUP 0x0a00 /* Xerox IEEE802.3 PUP packet */57#define ETH_P_IEEEPUPAT 0x0a01 /* Xerox IEEE802.3 PUP Addr Trans packet */58#define ETH_P_BATMAN 0x4305 /* B.A.T.M.A.N.-Advanced packet [ NOT AN OFFICIALLY REGISTERED ID ] */59#define ETH_P_DEC 0x6000 /* DEC Assigned proto */60#define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */61#define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */62#define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */63#define ETH_P_LAT 0x6004 /* DEC LAT */64#define ETH_P_DIAG 0x6005 /* DEC Diagnostics */65#define ETH_P_CUST 0x6006 /* DEC Customer use */66#define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */67#define ETH_P_TEB 0x6558 /* Trans Ether Bridging */68#define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */69#define ETH_P_ATALK 0x809B /* Appletalk DDP */70#define ETH_P_AARP 0x80F3 /* Appletalk AARP */71#define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */72#define ETH_P_ERSPAN 0x88BE /* ERSPAN type II */73#define ETH_P_IPX 0x8137 /* IPX over DIX */74#define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */75#define ETH_P_PAUSE 0x8808 /* IEEE Pause frames. See 802.3 31B */76#define ETH_P_SLOW 0x8809 /* Slow Protocol. See 802.3ad 43B */77#define ETH_P_WCCP 0x883E /* Web-cache coordination protocol78 * defined in draft-wilson-wrec-wccp-v2-00.txt */79#define ETH_P_MPLS_UC 0x8847 /* MPLS Unicast traffic */80#define ETH_P_MPLS_MC 0x8848 /* MPLS Multicast traffic */81#define ETH_P_ATMMPOA 0x884c /* MultiProtocol Over ATM */82#define ETH_P_PPP_DISC 0x8863 /* PPPoE discovery messages */83#define ETH_P_PPP_SES 0x8864 /* PPPoE session messages */84#define ETH_P_LINK_CTL 0x886c /* HPNA, wlan link local tunnel */85#define ETH_P_ATMFATE 0x8884 /* Frame-based ATM Transport86 * over Ethernet87 */88#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */89#define ETH_P_PROFINET 0x8892 /* PROFINET */90#define ETH_P_REALTEK 0x8899 /* Multiple proprietary protocols */91#define ETH_P_AOE 0x88A2 /* ATA over Ethernet */92#define ETH_P_ETHERCAT 0x88A4 /* EtherCAT */93#define ETH_P_8021AD 0x88A8 /* 802.1ad Service VLAN */94#define ETH_P_802_EX1 0x88B5 /* 802.1 Local Experimental 1. */95#define ETH_P_PREAUTH 0x88C7 /* 802.11 Preauthentication */96#define ETH_P_TIPC 0x88CA /* TIPC */97#define ETH_P_LLDP 0x88CC /* Link Layer Discovery Protocol */98#define ETH_P_MRP 0x88E3 /* Media Redundancy Protocol */99#define ETH_P_MACSEC 0x88E5 /* 802.1ae MACsec */100#define ETH_P_8021AH 0x88E7 /* 802.1ah Backbone Service Tag */101#define ETH_P_MVRP 0x88F5 /* 802.1Q MVRP */102#define ETH_P_1588 0x88F7 /* IEEE 1588 Timesync */103#define ETH_P_NCSI 0x88F8 /* NCSI protocol */104#define ETH_P_PRP 0x88FB /* IEC 62439-3 PRP/HSRv0 */105#define ETH_P_CFM 0x8902 /* Connectivity Fault Management */106#define ETH_P_FCOE 0x8906 /* Fibre Channel over Ethernet */107#define ETH_P_IBOE 0x8915 /* Infiniband over Ethernet */108#define ETH_P_TDLS 0x890D /* TDLS */109#define ETH_P_FIP 0x8914 /* FCoE Initialization Protocol */110#define ETH_P_80221 0x8917 /* IEEE 802.21 Media Independent Handover Protocol */111#define ETH_P_HSR 0x892F /* IEC 62439-3 HSRv1 */112#define ETH_P_NSH 0x894F /* Network Service Header */113#define ETH_P_LOOPBACK 0x9000 /* Ethernet loopback packet, per IEEE 802.3 */114#define ETH_P_QINQ1 0x9100 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */115#define ETH_P_QINQ2 0x9200 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */116#define ETH_P_QINQ3 0x9300 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */117#define ETH_P_EDSA 0xDADA /* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */118#define ETH_P_DSA_8021Q 0xDADB /* Fake VLAN Header for DSA [ NOT AN OFFICIALLY REGISTERED ID ] */119#define ETH_P_DSA_A5PSW 0xE001 /* A5PSW Tag Value [ NOT AN OFFICIALLY REGISTERED ID ] */120#define ETH_P_IFE 0xED3E /* ForCES inter-FE LFB type */121#define ETH_P_AF_IUCV 0xFBFB /* IBM af_iucv [ NOT AN OFFICIALLY REGISTERED ID ] */122 123#define ETH_P_802_3_MIN 0x0600 /* If the value in the ethernet type is more than this value124 * then the frame is Ethernet II. Else it is 802.3 */125 126/*127 * Non DIX types. Won't clash for 1500 types.128 */129 130#define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */131#define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */132#define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */133#define ETH_P_802_2 0x0004 /* 802.2 frames */134#define ETH_P_SNAP 0x0005 /* Internal only */135#define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */136#define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/137#define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */138#define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */139#define ETH_P_CAN 0x000C /* CAN: Controller Area Network */140#define ETH_P_CANFD 0x000D /* CANFD: CAN flexible data rate*/141#define ETH_P_CANXL 0x000E /* CANXL: eXtended frame Length */142#define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/143#define ETH_P_TR_802_2 0x0011 /* 802.2 frames */144#define ETH_P_MOBITEX 0x0015 /* Mobitex (kaz@cafe.net) */145#define ETH_P_CONTROL 0x0016 /* Card specific control frames */146#define ETH_P_IRDA 0x0017 /* Linux-IrDA */147#define ETH_P_ECONET 0x0018 /* Acorn Econet */148#define ETH_P_HDLC 0x0019 /* HDLC frames */149#define ETH_P_ARCNET 0x001A /* 1A for ArcNet :-) */150#define ETH_P_DSA 0x001B /* Distributed Switch Arch. */151#define ETH_P_TRAILER 0x001C /* Trailer switch tagging */152#define ETH_P_PHONET 0x00F5 /* Nokia Phonet frames */153#define ETH_P_IEEE802154 0x00F6 /* IEEE802.15.4 frame */154#define ETH_P_CAIF 0x00F7 /* ST-Ericsson CAIF protocol */155#define ETH_P_XDSA 0x00F8 /* Multiplexed DSA protocol */156#define ETH_P_MAP 0x00F9 /* Qualcomm multiplexing and157 * aggregation protocol158 */159#define ETH_P_MCTP 0x00FA /* Management component transport160 * protocol packets161 */162 163/*164 * This is an Ethernet frame header.165 */166 167/* allow libcs like musl to deactivate this, glibc does not implement this. */168#ifndef __UAPI_DEF_ETHHDR169#define __UAPI_DEF_ETHHDR 1170#endif171 172#if __UAPI_DEF_ETHHDR173struct ethhdr {174 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */175 unsigned char h_source[ETH_ALEN]; /* source ether addr */176 __be16 h_proto; /* packet type ID field */177} __attribute__((packed));178#endif179 180 181#endif /* _UAPI_LINUX_IF_ETHER_H */182