125981136fb13bcacf5f475f3e0ec750341e1e671Christopher Ferris/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* 3224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * INET An implementation of the TCP/IP protocol suite for the LINUX 4224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * operating system. INET is implemented using the BSD Socket 5224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * interface as the means of communication with the user level. 6224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 7224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Global definitions for the ARP (RFC 826) protocol. 8224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 9224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Version: @(#)if_arp.h 1.0.1 04/16/93 10224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 11224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988 12224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Portions taken from the KA9Q/NOS (v2.00m PA0GRI) source. 13224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Ross Biro 14224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 15224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Florian La Roche, 16224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Jonathan Layes <layes@loran.com> 17224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Arnaldo Carvalho de Melo <acme@conectiva.com.br> ARPHRD_HWX25 18224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 19224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * This program is free software; you can redistribute it and/or 20224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * modify it under the terms of the GNU General Public License 21224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * as published by the Free Software Foundation; either version 22224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 2 of the License, or (at your option) any later version. 23224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng */ 24224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#ifndef _UAPI_LINUX_IF_ARP_H 25224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define _UAPI_LINUX_IF_ARP_H 26224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 27224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#include <linux/netdevice.h> 28224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 29224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* ARP protocol HARDWARE identifiers. */ 30224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_NETROM 0 /* from KA9Q: NET/ROM pseudo */ 31224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_ETHER 1 /* Ethernet 10Mbps */ 32224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_EETHER 2 /* Experimental Ethernet */ 33224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_AX25 3 /* AX.25 Level 2 */ 34224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_PRONET 4 /* PROnet token ring */ 35224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_CHAOS 5 /* Chaosnet */ 36224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE802 6 /* IEEE 802.2 Ethernet/TR/TB */ 37224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_ARCNET 7 /* ARCnet */ 38224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_APPLETLK 8 /* APPLEtalk */ 39224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_DLCI 15 /* Frame Relay DLCI */ 40224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_ATM 19 /* ATM */ 41224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_METRICOM 23 /* Metricom STRIP (new IANA id) */ 42224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE1394 24 /* IEEE 1394 IPv4 - RFC 2734 */ 43224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_EUI64 27 /* EUI-64 */ 44224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_INFINIBAND 32 /* InfiniBand */ 45224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 46224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* Dummy types for non ARP hardware */ 47224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_SLIP 256 48224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_CSLIP 257 49224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_SLIP6 258 50224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_CSLIP6 259 51224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_RSRVD 260 /* Notional KISS type */ 52224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_ADAPT 264 53224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_ROSE 270 54224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_X25 271 /* CCITT X.25 */ 55224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_HWX25 272 /* Boards with X.25 in firmware */ 56224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_CAN 280 /* Controller Area Network */ 57224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_PPP 512 58224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_CISCO 513 /* Cisco HDLC */ 59224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_HDLC ARPHRD_CISCO 60224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_LAPB 516 /* LAPB */ 61224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_DDCMP 517 /* Digital's DDCMP protocol */ 62224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_RAWHDLC 518 /* Raw HDLC */ 6325981136fb13bcacf5f475f3e0ec750341e1e671Christopher Ferris#define ARPHRD_RAWIP 519 /* Raw IP */ 64224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 65224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_TUNNEL 768 /* IPIP tunnel */ 66224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_TUNNEL6 769 /* IP6IP6 tunnel */ 67224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_FRAD 770 /* Frame Relay Access Device */ 68224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_SKIP 771 /* SKIP vif */ 69224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_LOOPBACK 772 /* Loopback device */ 70224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_LOCALTLK 773 /* Localtalk device */ 71224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_FDDI 774 /* Fiber Distributed Data Interface */ 72224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_BIF 775 /* AP1000 BIF */ 73224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_SIT 776 /* sit0 device - IPv6-in-IPv4 */ 74224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IPDDP 777 /* IP over DDP tunneller */ 75224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IPGRE 778 /* GRE over IP */ 76224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_PIMREG 779 /* PIMSM register interface */ 77224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_HIPPI 780 /* High Performance Parallel Interface */ 78224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_ASH 781 /* Nexus 64Mbps Ash */ 79224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_ECONET 782 /* Acorn Econet */ 80224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IRDA 783 /* Linux-IrDA */ 81224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* ARP works differently on different FC media .. so */ 82224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_FCPP 784 /* Point to point fibrechannel */ 83224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_FCAL 785 /* Fibrechannel arbitrated loop */ 84224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_FCPL 786 /* Fibrechannel public loop */ 85224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_FCFABRIC 787 /* Fibrechannel fabric */ 86224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng /* 787->799 reserved for fibrechannel media types */ 87224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE802_TR 800 /* Magic type ident for TR */ 88224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE80211 801 /* IEEE 802.11 */ 89224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE80211_PRISM 802 /* IEEE 802.11 + Prism2 header */ 90224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE80211_RADIOTAP 803 /* IEEE 802.11 + radiotap header */ 91224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE802154 804 92224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IEEE802154_MONITOR 805 /* IEEE 802.15.4 network monitor */ 93224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 94224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_PHONET 820 /* PhoNet media type */ 95224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_PHONET_PIPE 821 /* PhoNet pipe header */ 96224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_CAIF 822 /* CAIF media type */ 97224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_IP6GRE 823 /* GRE over IPv6 */ 98e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris#define ARPHRD_NETLINK 824 /* Netlink header */ 99e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris#define ARPHRD_6LOWPAN 825 /* IPv6 over LoWPAN */ 1000543f743b6f5bc5c0652568c763e6dfb9ddce647Christopher Ferris#define ARPHRD_VSOCKMON 826 /* Vsock monitor header */ 101224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 102224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_VOID 0xFFFF /* Void type, nothing is known */ 103224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPHRD_NONE 0xFFFE /* zero header length */ 104224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 105224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* ARP protocol opcodes. */ 106224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPOP_REQUEST 1 /* ARP request */ 107224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPOP_REPLY 2 /* ARP reply */ 108224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPOP_RREQUEST 3 /* RARP request */ 109224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPOP_RREPLY 4 /* RARP reply */ 110224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPOP_InREQUEST 8 /* InARP request */ 111224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPOP_InREPLY 9 /* InARP reply */ 112224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ARPOP_NAK 10 /* (ATM)ARP NAK */ 113224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 114224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 115224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* ARP ioctl request. */ 116224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct arpreq { 117224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng struct sockaddr arp_pa; /* protocol address */ 118224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng struct sockaddr arp_ha; /* hardware address */ 119224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng int arp_flags; /* flags */ 120224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng struct sockaddr arp_netmask; /* netmask (only for proxy arps) */ 121224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng char arp_dev[16]; 122224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 123224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 124224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct arpreq_old { 125224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng struct sockaddr arp_pa; /* protocol address */ 126224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng struct sockaddr arp_ha; /* hardware address */ 127224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng int arp_flags; /* flags */ 128224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng struct sockaddr arp_netmask; /* netmask (only for proxy arps) */ 129224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 130224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 131224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* ARP Flag values. */ 132224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ATF_COM 0x02 /* completed entry (ha valid) */ 133224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ATF_PERM 0x04 /* permanent entry */ 134224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ATF_PUBL 0x08 /* publish entry */ 135224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ATF_USETRAILERS 0x10 /* has requested trailers */ 136224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ATF_NETMASK 0x20 /* want to use a netmask (only 137224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng for proxy entries) */ 138224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define ATF_DONTPUB 0x40 /* don't answer this addresses */ 139224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 140224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* 141224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * This structure defines an ethernet arp header. 142224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng */ 143224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 144224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct arphdr { 145224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 ar_hrd; /* format of hardware address */ 146224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 ar_pro; /* format of protocol address */ 147224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng unsigned char ar_hln; /* length of hardware address */ 148224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng unsigned char ar_pln; /* length of protocol address */ 149224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 ar_op; /* ARP opcode (command) */ 150224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 151224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#if 0 152224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng /* 153224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Ethernet looks like this : This bit is variable sized however... 154224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng */ 155224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */ 156224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng unsigned char ar_sip[4]; /* sender IP address */ 157224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng unsigned char ar_tha[ETH_ALEN]; /* target hardware address */ 158224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng unsigned char ar_tip[4]; /* target IP address */ 159224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#endif 160224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 161224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 162224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 163224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 164224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#endif /* _UAPI_LINUX_IF_ARP_H */ 165