173 строки
6.4 KiB
C
173 строки
6.4 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
|
|
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
|
|
* Florian La Roche,
|
|
* Jonathan Layes <layes@loran.com>
|
|
* Arnaldo Carvalho de Melo <acme@conectiva.com.br> ARPHRD_HWX25
|
|
*
|
|
* 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
|
|
|
|
#include <linux/netdevice.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 */
|
|
#define ARPHRD_DLCI 15 /* Frame Relay DLCI */
|
|
#define ARPHRD_ATM 19 /* ATM */
|
|
#define ARPHRD_METRICOM 23 /* Metricom STRIP (new IANA id) */
|
|
#define ARPHRD_IEEE1394 24 /* IEEE 1394 IPv4 - RFC 2734 */
|
|
#define ARPHRD_EUI64 27 /* EUI-64 */
|
|
#define ARPHRD_INFINIBAND 32 /* InfiniBand */
|
|
|
|
/* 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_ROSE 270
|
|
#define ARPHRD_X25 271 /* CCITT X.25 */
|
|
#define ARPHRD_HWX25 272 /* Boards with X.25 in firmware */
|
|
#define ARPHRD_CAN 280 /* Controller Area Network */
|
|
#define ARPHRD_PPP 512
|
|
#define ARPHRD_CISCO 513 /* Cisco HDLC */
|
|
#define ARPHRD_HDLC ARPHRD_CISCO
|
|
#define ARPHRD_LAPB 516 /* LAPB */
|
|
#define ARPHRD_DDCMP 517 /* Digital's DDCMP protocol */
|
|
#define ARPHRD_RAWHDLC 518 /* Raw HDLC */
|
|
|
|
#define ARPHRD_TUNNEL 768 /* IPIP tunnel */
|
|
#define ARPHRD_TUNNEL6 769 /* IP6IP6 tunnel */
|
|
#define ARPHRD_FRAD 770 /* Frame Relay Access Device */
|
|
#define ARPHRD_SKIP 771 /* SKIP vif */
|
|
#define ARPHRD_LOOPBACK 772 /* Loopback device */
|
|
#define ARPHRD_LOCALTLK 773 /* Localtalk device */
|
|
#define ARPHRD_FDDI 774 /* Fiber Distributed Data Interface */
|
|
#define ARPHRD_BIF 775 /* AP1000 BIF */
|
|
#define ARPHRD_SIT 776 /* sit0 device - IPv6-in-IPv4 */
|
|
#define ARPHRD_IPDDP 777 /* IP over DDP tunneller */
|
|
#define ARPHRD_IPGRE 778 /* GRE over IP */
|
|
#define ARPHRD_PIMREG 779 /* PIMSM register interface */
|
|
#define ARPHRD_HIPPI 780 /* High Performance Parallel Interface */
|
|
#define ARPHRD_ASH 781 /* Nexus 64Mbps Ash */
|
|
#define ARPHRD_ECONET 782 /* Acorn Econet */
|
|
#define ARPHRD_IRDA 783 /* Linux-IrDA */
|
|
/* ARP works differently on different FC media .. so */
|
|
#define ARPHRD_FCPP 784 /* Point to point fibrechannel */
|
|
#define ARPHRD_FCAL 785 /* Fibrechannel arbitrated loop */
|
|
#define ARPHRD_FCPL 786 /* Fibrechannel public loop */
|
|
#define ARPHRD_FCFABRIC 787 /* Fibrechannel fabric */
|
|
/* 787->799 reserved for fibrechannel media types */
|
|
#define ARPHRD_IEEE802_TR 800 /* Magic type ident for TR */
|
|
#define ARPHRD_IEEE80211 801 /* IEEE 802.11 */
|
|
#define ARPHRD_IEEE80211_PRISM 802 /* IEEE 802.11 + Prism2 header */
|
|
#define ARPHRD_IEEE80211_RADIOTAP 803 /* IEEE 802.11 + radiotap header */
|
|
#define ARPHRD_IEEE802154 804
|
|
#define ARPHRD_IEEE802154_PHY 805
|
|
|
|
#define ARPHRD_PHONET 820 /* PhoNet media type */
|
|
#define ARPHRD_PHONET_PIPE 821 /* PhoNet pipe header */
|
|
|
|
#define ARPHRD_VOID 0xFFFF /* Void type, nothing is known */
|
|
#define ARPHRD_NONE 0xFFFE /* zero header length */
|
|
|
|
/* 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 */
|
|
#define ARPOP_InREQUEST 8 /* InARP request */
|
|
#define ARPOP_InREPLY 9 /* InARP reply */
|
|
#define ARPOP_NAK 10 /* (ATM)ARP NAK */
|
|
|
|
|
|
/* 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) */
|
|
#define ATF_DONTPUB 0x40 /* don't answer this addresses */
|
|
|
|
/*
|
|
* This structure defines an ethernet arp header.
|
|
*/
|
|
|
|
struct arphdr
|
|
{
|
|
__be16 ar_hrd; /* format of hardware address */
|
|
__be16 ar_pro; /* format of protocol address */
|
|
unsigned char ar_hln; /* length of hardware address */
|
|
unsigned char ar_pln; /* length of protocol address */
|
|
__be16 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
|
|
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/skbuff.h>
|
|
|
|
static inline struct arphdr *arp_hdr(const struct sk_buff *skb)
|
|
{
|
|
return (struct arphdr *)skb_network_header(skb);
|
|
}
|
|
|
|
static inline int arp_hdr_len(struct net_device *dev)
|
|
{
|
|
/* ARP header, plus 2 device addresses, plus 2 IP addresses. */
|
|
return sizeof(struct arphdr) + (dev->addr_len + sizeof(u32)) * 2;
|
|
}
|
|
#endif
|
|
|
|
#endif /* _LINUX_IF_ARP_H */
|