mirror of
https://github.com/paulusmack/ppp.git
synced 2024-12-13 06:03:39 +08:00
103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
/*
|
|
* INET An implementation of the TCP/IP protocol suite for the LINUX
|
|
* operating system. INET is implemented using the BSD Socket
|
|
* interface as the means of communication with the user level.
|
|
*
|
|
* Global definitions for the ARP (RFC 826) protocol.
|
|
*
|
|
* Version: @(#)if_arp.h 1.0.1 04/16/93
|
|
*
|
|
* Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988
|
|
* Portions taken from the KA9Q/NOS (v2.00m PA0GRI) source.
|
|
* Ross Biro, <bir7@leland.Stanford.Edu>
|
|
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
|
|
* Florian La Roche.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#ifndef _LINUX_IF_ARP_H
|
|
#define _LINUX_IF_ARP_H
|
|
|
|
/* ARP protocol HARDWARE identifiers. */
|
|
#define ARPHRD_NETROM 0 /* from KA9Q: NET/ROM pseudo */
|
|
#define ARPHRD_ETHER 1 /* Ethernet 10Mbps */
|
|
#define ARPHRD_EETHER 2 /* Experimental Ethernet */
|
|
#define ARPHRD_AX25 3 /* AX.25 Level 2 */
|
|
#define ARPHRD_PRONET 4 /* PROnet token ring */
|
|
#define ARPHRD_CHAOS 5 /* Chaosnet */
|
|
#define ARPHRD_IEEE802 6 /* IEEE 802.2 Ethernet/TR/TB */
|
|
#define ARPHRD_ARCNET 7 /* ARCnet */
|
|
#define ARPHRD_APPLETLK 8 /* APPLEtalk */
|
|
/* Dummy types for non ARP hardware */
|
|
#define ARPHRD_SLIP 256
|
|
#define ARPHRD_CSLIP 257
|
|
#define ARPHRD_SLIP6 258
|
|
#define ARPHRD_CSLIP6 259
|
|
#define ARPHRD_RSRVD 260 /* Notional KISS type */
|
|
#define ARPHRD_ADAPT 264
|
|
#define ARPHRD_PPP 512
|
|
#define ARPHRD_TUNNEL 768 /* IPIP tunnel */
|
|
#define ARPHRD_TUNNEL6 769 /* IPIP6 tunnel */
|
|
#define ARPHRD_FRAD 770 /* Frame Relay */
|
|
#define ARPHRD_SKIP 771 /* SKIP vif */
|
|
|
|
/* ARP protocol opcodes. */
|
|
#define ARPOP_REQUEST 1 /* ARP request */
|
|
#define ARPOP_REPLY 2 /* ARP reply */
|
|
#define ARPOP_RREQUEST 3 /* RARP request */
|
|
#define ARPOP_RREPLY 4 /* RARP reply */
|
|
|
|
|
|
/* ARP ioctl request. */
|
|
struct arpreq {
|
|
struct sockaddr arp_pa; /* protocol address */
|
|
struct sockaddr arp_ha; /* hardware address */
|
|
int arp_flags; /* flags */
|
|
struct sockaddr arp_netmask; /* netmask (only for proxy arps) */
|
|
char arp_dev[16];
|
|
};
|
|
|
|
struct arpreq_old {
|
|
struct sockaddr arp_pa; /* protocol address */
|
|
struct sockaddr arp_ha; /* hardware address */
|
|
int arp_flags; /* flags */
|
|
struct sockaddr arp_netmask; /* netmask (only for proxy arps) */
|
|
};
|
|
|
|
/* ARP Flag values. */
|
|
#define ATF_COM 0x02 /* completed entry (ha valid) */
|
|
#define ATF_PERM 0x04 /* permanent entry */
|
|
#define ATF_PUBL 0x08 /* publish entry */
|
|
#define ATF_USETRAILERS 0x10 /* has requested trailers */
|
|
#define ATF_NETMASK 0x20 /* want to use a netmask (only
|
|
for proxy entries) */
|
|
|
|
/*
|
|
* This structure defines an ethernet arp header.
|
|
*/
|
|
|
|
struct arphdr
|
|
{
|
|
unsigned short ar_hrd; /* format of hardware address */
|
|
unsigned short ar_pro; /* format of protocol address */
|
|
unsigned char ar_hln; /* length of hardware address */
|
|
unsigned char ar_pln; /* length of protocol address */
|
|
unsigned short ar_op; /* ARP opcode (command) */
|
|
|
|
#if 0
|
|
/*
|
|
* Ethernet looks like this : This bit is variable sized however...
|
|
*/
|
|
unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
|
|
unsigned char ar_sip[4]; /* sender IP address */
|
|
unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
|
|
unsigned char ar_tip[4]; /* target IP address */
|
|
#endif
|
|
|
|
};
|
|
|
|
#endif /* _LINUX_IF_ARP_H */
|