if_arp.h revision 054c80d775f2ae9b8f50260bdfcb821e99c0da2a
144d362409d5469aed47d19e7908d19bd194493aThomas Graf/* 244d362409d5469aed47d19e7908d19bd194493aThomas Graf * INET An implementation of the TCP/IP protocol suite for the LINUX 344d362409d5469aed47d19e7908d19bd194493aThomas Graf * operating system. INET is implemented using the BSD Socket 444d362409d5469aed47d19e7908d19bd194493aThomas Graf * interface as the means of communication with the user level. 544d362409d5469aed47d19e7908d19bd194493aThomas Graf * 644d362409d5469aed47d19e7908d19bd194493aThomas Graf * Global definitions for the ARP (RFC 826) protocol. 744d362409d5469aed47d19e7908d19bd194493aThomas Graf * 844d362409d5469aed47d19e7908d19bd194493aThomas Graf * Version: @(#)if_arp.h 1.0.1 04/16/93 944d362409d5469aed47d19e7908d19bd194493aThomas Graf * 1044d362409d5469aed47d19e7908d19bd194493aThomas Graf * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988 1144d362409d5469aed47d19e7908d19bd194493aThomas Graf * Portions taken from the KA9Q/NOS (v2.00m PA0GRI) source. 1244d362409d5469aed47d19e7908d19bd194493aThomas Graf * Ross Biro 1344d362409d5469aed47d19e7908d19bd194493aThomas Graf * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 1444d362409d5469aed47d19e7908d19bd194493aThomas Graf * Florian La Roche, 1544d362409d5469aed47d19e7908d19bd194493aThomas Graf * Jonathan Layes <layes@loran.com> 1644d362409d5469aed47d19e7908d19bd194493aThomas Graf * Arnaldo Carvalho de Melo <acme@conectiva.com.br> ARPHRD_HWX25 1744d362409d5469aed47d19e7908d19bd194493aThomas Graf * 1844d362409d5469aed47d19e7908d19bd194493aThomas Graf * This program is free software; you can redistribute it and/or 1944d362409d5469aed47d19e7908d19bd194493aThomas Graf * modify it under the terms of the GNU General Public License 2044d362409d5469aed47d19e7908d19bd194493aThomas Graf * as published by the Free Software Foundation; either version 2144d362409d5469aed47d19e7908d19bd194493aThomas Graf * 2 of the License, or (at your option) any later version. 2244d362409d5469aed47d19e7908d19bd194493aThomas Graf */ 2344d362409d5469aed47d19e7908d19bd194493aThomas Graf#ifndef _LINUX_IF_ARP_H 2444d362409d5469aed47d19e7908d19bd194493aThomas Graf#define _LINUX_IF_ARP_H 2544d362409d5469aed47d19e7908d19bd194493aThomas Graf 26054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart#include <linux/netdevice.h> 27054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart 2844d362409d5469aed47d19e7908d19bd194493aThomas Graf/* ARP protocol HARDWARE identifiers. */ 2944d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_NETROM 0 /* from KA9Q: NET/ROM pseudo */ 3044d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_ETHER 1 /* Ethernet 10Mbps */ 3144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_EETHER 2 /* Experimental Ethernet */ 3244d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_AX25 3 /* AX.25 Level 2 */ 3344d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_PRONET 4 /* PROnet token ring */ 3444d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_CHAOS 5 /* Chaosnet */ 3544d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IEEE802 6 /* IEEE 802.2 Ethernet/TR/TB */ 3644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_ARCNET 7 /* ARCnet */ 3744d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_APPLETLK 8 /* APPLEtalk */ 3844d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_DLCI 15 /* Frame Relay DLCI */ 3944d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_ATM 19 /* ATM */ 4044d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_METRICOM 23 /* Metricom STRIP (new IANA id) */ 4144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IEEE1394 24 /* IEEE 1394 IPv4 - RFC 2734 */ 4244d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_EUI64 27 /* EUI-64 */ 4344d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_INFINIBAND 32 /* InfiniBand */ 4444d362409d5469aed47d19e7908d19bd194493aThomas Graf 4544d362409d5469aed47d19e7908d19bd194493aThomas Graf/* Dummy types for non ARP hardware */ 4644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_SLIP 256 4744d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_CSLIP 257 4844d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_SLIP6 258 4944d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_CSLIP6 259 5044d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_RSRVD 260 /* Notional KISS type */ 5144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_ADAPT 264 5244d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_ROSE 270 5344d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_X25 271 /* CCITT X.25 */ 5444d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_HWX25 272 /* Boards with X.25 in firmware */ 55054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart#define ARPHRD_CAN 280 /* Controller Area Network */ 5644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_PPP 512 5744d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_CISCO 513 /* Cisco HDLC */ 5844d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_HDLC ARPHRD_CISCO 5944d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_LAPB 516 /* LAPB */ 6044d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_DDCMP 517 /* Digital's DDCMP protocol */ 6144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_RAWHDLC 518 /* Raw HDLC */ 6244d362409d5469aed47d19e7908d19bd194493aThomas Graf 6344d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_TUNNEL 768 /* IPIP tunnel */ 6444d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_TUNNEL6 769 /* IP6IP6 tunnel */ 6544d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_FRAD 770 /* Frame Relay Access Device */ 6644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_SKIP 771 /* SKIP vif */ 6744d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_LOOPBACK 772 /* Loopback device */ 6844d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_LOCALTLK 773 /* Localtalk device */ 6944d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_FDDI 774 /* Fiber Distributed Data Interface */ 7044d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_BIF 775 /* AP1000 BIF */ 7144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_SIT 776 /* sit0 device - IPv6-in-IPv4 */ 7244d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IPDDP 777 /* IP over DDP tunneller */ 7344d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IPGRE 778 /* GRE over IP */ 7444d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_PIMREG 779 /* PIMSM register interface */ 7544d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_HIPPI 780 /* High Performance Parallel Interface */ 7644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_ASH 781 /* Nexus 64Mbps Ash */ 7744d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_ECONET 782 /* Acorn Econet */ 7844d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IRDA 783 /* Linux-IrDA */ 7944d362409d5469aed47d19e7908d19bd194493aThomas Graf/* ARP works differently on different FC media .. so */ 8044d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_FCPP 784 /* Point to point fibrechannel */ 8144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_FCAL 785 /* Fibrechannel arbitrated loop */ 8244d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_FCPL 786 /* Fibrechannel public loop */ 8344d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_FCFABRIC 787 /* Fibrechannel fabric */ 8444d362409d5469aed47d19e7908d19bd194493aThomas Graf /* 787->799 reserved for fibrechannel media types */ 8544d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IEEE802_TR 800 /* Magic type ident for TR */ 8644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IEEE80211 801 /* IEEE 802.11 */ 8744d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IEEE80211_PRISM 802 /* IEEE 802.11 + Prism2 header */ 8844d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_IEEE80211_RADIOTAP 803 /* IEEE 802.11 + radiotap header */ 89054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart#define ARPHRD_IEEE802154 804 90054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart 91054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart#define ARPHRD_PHONET 820 /* PhoNet media type */ 92054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart#define ARPHRD_PHONET_PIPE 821 /* PhoNet pipe header */ 93054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart#define ARPHRD_CAIF 822 /* CAIF media type */ 9444d362409d5469aed47d19e7908d19bd194493aThomas Graf 9544d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_VOID 0xFFFF /* Void type, nothing is known */ 9644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPHRD_NONE 0xFFFE /* zero header length */ 9744d362409d5469aed47d19e7908d19bd194493aThomas Graf 9844d362409d5469aed47d19e7908d19bd194493aThomas Graf/* ARP protocol opcodes. */ 9944d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPOP_REQUEST 1 /* ARP request */ 10044d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPOP_REPLY 2 /* ARP reply */ 10144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPOP_RREQUEST 3 /* RARP request */ 10244d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPOP_RREPLY 4 /* RARP reply */ 10344d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPOP_InREQUEST 8 /* InARP request */ 10444d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPOP_InREPLY 9 /* InARP reply */ 10544d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ARPOP_NAK 10 /* (ATM)ARP NAK */ 10644d362409d5469aed47d19e7908d19bd194493aThomas Graf 10744d362409d5469aed47d19e7908d19bd194493aThomas Graf 10844d362409d5469aed47d19e7908d19bd194493aThomas Graf/* ARP ioctl request. */ 10944d362409d5469aed47d19e7908d19bd194493aThomas Grafstruct arpreq { 11044d362409d5469aed47d19e7908d19bd194493aThomas Graf struct sockaddr arp_pa; /* protocol address */ 11144d362409d5469aed47d19e7908d19bd194493aThomas Graf struct sockaddr arp_ha; /* hardware address */ 11244d362409d5469aed47d19e7908d19bd194493aThomas Graf int arp_flags; /* flags */ 11344d362409d5469aed47d19e7908d19bd194493aThomas Graf struct sockaddr arp_netmask; /* netmask (only for proxy arps) */ 11444d362409d5469aed47d19e7908d19bd194493aThomas Graf char arp_dev[16]; 11544d362409d5469aed47d19e7908d19bd194493aThomas Graf}; 11644d362409d5469aed47d19e7908d19bd194493aThomas Graf 11744d362409d5469aed47d19e7908d19bd194493aThomas Grafstruct arpreq_old { 11844d362409d5469aed47d19e7908d19bd194493aThomas Graf struct sockaddr arp_pa; /* protocol address */ 11944d362409d5469aed47d19e7908d19bd194493aThomas Graf struct sockaddr arp_ha; /* hardware address */ 12044d362409d5469aed47d19e7908d19bd194493aThomas Graf int arp_flags; /* flags */ 12144d362409d5469aed47d19e7908d19bd194493aThomas Graf struct sockaddr arp_netmask; /* netmask (only for proxy arps) */ 12244d362409d5469aed47d19e7908d19bd194493aThomas Graf}; 12344d362409d5469aed47d19e7908d19bd194493aThomas Graf 12444d362409d5469aed47d19e7908d19bd194493aThomas Graf/* ARP Flag values. */ 12544d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ATF_COM 0x02 /* completed entry (ha valid) */ 12644d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ATF_PERM 0x04 /* permanent entry */ 12744d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ATF_PUBL 0x08 /* publish entry */ 12844d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ATF_USETRAILERS 0x10 /* has requested trailers */ 12944d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ATF_NETMASK 0x20 /* want to use a netmask (only 13044d362409d5469aed47d19e7908d19bd194493aThomas Graf for proxy entries) */ 13144d362409d5469aed47d19e7908d19bd194493aThomas Graf#define ATF_DONTPUB 0x40 /* don't answer this addresses */ 13244d362409d5469aed47d19e7908d19bd194493aThomas Graf 13344d362409d5469aed47d19e7908d19bd194493aThomas Graf/* 13444d362409d5469aed47d19e7908d19bd194493aThomas Graf * This structure defines an ethernet arp header. 13544d362409d5469aed47d19e7908d19bd194493aThomas Graf */ 13644d362409d5469aed47d19e7908d19bd194493aThomas Graf 137054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewartstruct arphdr { 138054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart __be16 ar_hrd; /* format of hardware address */ 139054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart __be16 ar_pro; /* format of protocol address */ 14044d362409d5469aed47d19e7908d19bd194493aThomas Graf unsigned char ar_hln; /* length of hardware address */ 14144d362409d5469aed47d19e7908d19bd194493aThomas Graf unsigned char ar_pln; /* length of protocol address */ 142054c80d775f2ae9b8f50260bdfcb821e99c0da2aPaul Stewart __be16 ar_op; /* ARP opcode (command) */ 14344d362409d5469aed47d19e7908d19bd194493aThomas Graf 14444d362409d5469aed47d19e7908d19bd194493aThomas Graf#if 0 14544d362409d5469aed47d19e7908d19bd194493aThomas Graf /* 14644d362409d5469aed47d19e7908d19bd194493aThomas Graf * Ethernet looks like this : This bit is variable sized however... 14744d362409d5469aed47d19e7908d19bd194493aThomas Graf */ 14844d362409d5469aed47d19e7908d19bd194493aThomas Graf unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */ 14944d362409d5469aed47d19e7908d19bd194493aThomas Graf unsigned char ar_sip[4]; /* sender IP address */ 15044d362409d5469aed47d19e7908d19bd194493aThomas Graf unsigned char ar_tha[ETH_ALEN]; /* target hardware address */ 15144d362409d5469aed47d19e7908d19bd194493aThomas Graf unsigned char ar_tip[4]; /* target IP address */ 15244d362409d5469aed47d19e7908d19bd194493aThomas Graf#endif 15344d362409d5469aed47d19e7908d19bd194493aThomas Graf 15444d362409d5469aed47d19e7908d19bd194493aThomas Graf}; 15544d362409d5469aed47d19e7908d19bd194493aThomas Graf 15644d362409d5469aed47d19e7908d19bd194493aThomas Graf#endif /* _LINUX_IF_ARP_H */ 157