1 /* 2 * INET An implementation of the TCP/IP protocol suite for the LINUX 3 * operating system. INET is implemented using the BSD Socket 4 * interface as the means of communication with the user level. 5 * 6 * Global definitions for the ARP (RFC 826) protocol. 7 * 8 * Version: @(#)if_arp.h 1.0.1 04/16/93 9 * 10 * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988 11 * Portions taken from the KA9Q/NOS (v2.00m PA0GRI) source. 12 * Ross Biro, <bir7@leland.Stanford.Edu> 13 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 14 * 15 * This program is free software; you can redistribute it and/or 16 * modify it under the terms of the GNU General Public License 17 * as published by the Free Software Foundation; either version 18 * 2 of the License, or (at your option) any later version. 19 */ 20 #ifndef _LINUX_IF_ARP_H 21 #define _LINUX_IF_ARP_H 22 23 /* ARP protocol HARDWARE identifiers. */ 24 #define ARPHRD_NETROM 0 /* from KA9Q: NET/ROM pseudo */ 25 #define ARPHRD_ETHER 1 /* Ethernet 10Mbps */ 26 #define ARPHRD_EETHER 2 /* Experimental Ethernet */ 27 #define ARPHRD_AX25 3 /* AX.25 Level 2 */ 28 #define ARPHRD_PRONET 4 /* PROnet token ring */ 29 #define ARPHRD_CHAOS 5 /* Chaosnet */ 30 #define ARPHRD_IEEE802 6 /* IEEE 802.2 Ethernet- huh? */ 31 #define ARPHRD_ARCNET 7 /* ARCnet */ 32 #define ARPHRD_APPLETLK 8 /* APPLEtalk */ 33 /* Dummy types for non ARP hardware */ 34 #define ARPHRD_SLIP 256 35 #define ARPHRD_CSLIP 257 36 #define ARPHRD_SLIP6 258 37 #define ARPHRD_CSLIP6 259 38 #define ARPHRD_RSRVD 260 /* Notional KISS type */ 39 #define ARPHRD_ADAPT 264 40 #define ARPHRD_PPP 512 41 42 /* ARP protocol opcodes. */ 43 #define ARPOP_REQUEST 1 /* ARP request */ 44 #define ARPOP_REPLY 2 /* ARP reply */ 45 #define ARPOP_RREQUEST 3 /* RARP request */ 46 #define ARPOP_RREPLY 4 /* RARP reply */ 47 48 49 /* ARP ioctl request. */ 50 struct arpreq { 51 struct sockaddr arp_pa; /* protocol address */ 52 struct sockaddr arp_ha; /* hardware address */ 53 int arp_flags; /* flags */ 54 }; 55 56 /* ARP Flag values. */ 57 #define ATF_COM 0x02 /* completed entry (ha valid) */ 58 #define ATF_PERM 0x04 /* permanent entry */ 59 #define ATF_PUBL 0x08 /* publish entry */ 60 #define ATF_USETRAILERS 0x10 /* has requested trailers */ 61 62 63 #endif /* _LINUX_IF_ARP_H */