Address Resolution Protocol constants and types. More...

#include <stdint.h>

Data Structures
struct	arphdr
	An ARP header. More...

Macros
#define	ARPHRD_NETROM 0
	from KA9Q: NET/ROM pseudo More...

#define	ARPHRD_ETHER 1
	Ethernet 10Mbps. More...

#define	ARPHRD_EETHER 2
	Experimental Ethernet. More...

#define	ARPHRD_AX25 3
	AX.25 Level 2. More...

#define	ARPHRD_PRONET 4
	PROnet token ring. More...

#define	ARPHRD_CHAOS 5
	Chaosnet. More...

#define	ARPHRD_IEEE802 6
	IEEE 802.2 Ethernet/TR/TB. More...

#define	ARPHRD_ARCNET 7
	ARCnet. More...

#define	ARPHRD_APPLETLK 8
	APPLEtalk. More...

#define	ARPHRD_DLCI 15
	Frame Relay DLCI. More...

#define	ARPHRD_ATM 19
	ATM. More...

#define	ARPHRD_METRICOM 23
	Metricom STRIP (new IANA id) More...

#define	ARPHRD_IEEE1394 24
	IEEE 1394 IPv4 - RFC 2734. More...

#define	ARPHRD_EUI64 27
	EUI-64. More...

#define	ARPHRD_INFINIBAND 32
	InfiniBand. More...

#define	ARPOP_REQUEST 1
	ARP request. More...

#define	ARPOP_REPLY 2
	ARP reply. More...

#define	ARPOP_RREQUEST 3
	RARP request. More...

#define	ARPOP_RREPLY 4
	RARP reply. More...

#define	ARPOP_InREQUEST 8
	InARP request. More...

#define	ARPOP_InREPLY 9
	InARP reply. More...

#define	ARPOP_NAK 10
	(ATM)ARP NAK More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)

struct arphdr	__attribute__ ((packed))

static void *	arp_sender_ha (struct arphdr *arphdr)
	ARP packet sender hardware address. More...

static void *	arp_sender_pa (struct arphdr *arphdr)
	ARP packet sender protocol address. More...

static void *	arp_target_ha (struct arphdr *arphdr)
	ARP packet target hardware address. More...

static void *	arp_target_pa (struct arphdr *arphdr)
	ARP packet target protocol address. More...

static size_t	arp_len (struct arphdr *arphdr)
	ARP packet length. More...

Variables
uint16_t	ar_hrd
	Link-layer protocol. More...

uint16_t	ar_pro
	Network-layer protocol. More...

uint8_t	ar_hln
	Link-layer address length. More...

uint8_t	ar_pln
	Network-layer address length. More...

uint16_t	ar_op
	ARP opcode. More...

Detailed Description

Address Resolution Protocol constants and types.

Definition in file if_arp.h.

Macro Definition Documentation

◆ ARPHRD_NETROM

#define ARPHRD_NETROM 0

from KA9Q: NET/ROM pseudo

Definition at line 15 of file if_arp.h.

◆ ARPHRD_ETHER

#define ARPHRD_ETHER 1

Ethernet 10Mbps.

Definition at line 16 of file if_arp.h.

◆ ARPHRD_EETHER

#define ARPHRD_EETHER 2

Experimental Ethernet.

Definition at line 17 of file if_arp.h.

◆ ARPHRD_AX25

#define ARPHRD_AX25 3

AX.25 Level 2.

Definition at line 18 of file if_arp.h.

◆ ARPHRD_PRONET

#define ARPHRD_PRONET 4

PROnet token ring.

Definition at line 19 of file if_arp.h.

◆ ARPHRD_CHAOS

#define ARPHRD_CHAOS 5

Chaosnet.

Definition at line 20 of file if_arp.h.

◆ ARPHRD_IEEE802

#define ARPHRD_IEEE802 6

IEEE 802.2 Ethernet/TR/TB.

Definition at line 21 of file if_arp.h.

◆ ARPHRD_ARCNET

#define ARPHRD_ARCNET 7

ARCnet.

Definition at line 22 of file if_arp.h.

◆ ARPHRD_APPLETLK

#define ARPHRD_APPLETLK 8

APPLEtalk.

Definition at line 23 of file if_arp.h.

◆ ARPHRD_DLCI

#define ARPHRD_DLCI 15

Frame Relay DLCI.

Definition at line 24 of file if_arp.h.

◆ ARPHRD_ATM

#define ARPHRD_ATM 19

ATM.

Definition at line 25 of file if_arp.h.

◆ ARPHRD_METRICOM

#define ARPHRD_METRICOM 23

Metricom STRIP (new IANA id)

Definition at line 26 of file if_arp.h.

◆ ARPHRD_IEEE1394

#define ARPHRD_IEEE1394 24

IEEE 1394 IPv4 - RFC 2734.

Definition at line 27 of file if_arp.h.

◆ ARPHRD_EUI64

#define ARPHRD_EUI64 27

EUI-64.

Definition at line 28 of file if_arp.h.

◆ ARPHRD_INFINIBAND

#define ARPHRD_INFINIBAND 32

InfiniBand.

Definition at line 29 of file if_arp.h.

◆ ARPOP_REQUEST

#define ARPOP_REQUEST 1

ARP request.

Definition at line 32 of file if_arp.h.

◆ ARPOP_REPLY

#define ARPOP_REPLY 2

ARP reply.

Definition at line 33 of file if_arp.h.

◆ ARPOP_RREQUEST

#define ARPOP_RREQUEST 3

RARP request.

Definition at line 34 of file if_arp.h.

◆ ARPOP_RREPLY

#define ARPOP_RREPLY 4

RARP reply.

Definition at line 35 of file if_arp.h.

◆ ARPOP_InREQUEST

#define ARPOP_InREQUEST 8

InARP request.

Definition at line 36 of file if_arp.h.

◆ ARPOP_InREPLY

#define ARPOP_InREPLY 9

InARP reply.

Definition at line 37 of file if_arp.h.

◆ ARPOP_NAK

#define ARPOP_NAK 10

(ATM)ARP NAK

Definition at line 38 of file if_arp.h.

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )

◆ attribute()

struct arphdr __attribute__ ( (packed) )

◆ arp_sender_ha()

static void* arp_sender_ha ( struct arphdr * arphdr )

inlinestatic

ARP packet sender hardware address.

Parameters

arphdr ARP header

Return values

ar_sha Sender hardware address

Definition at line 71 of file if_arp.h.

                                                              {
         return ( ( ( void * ) arphdr ) + sizeof ( *arphdr ) );
 }

Referenced by arp_rx(), arp_sender_pa(), gdbudp_recv(), ipoib_translate_rx_arp(), and ipoib_translate_tx_arp().

◆ arp_sender_pa()

static void* arp_sender_pa ( struct arphdr * arphdr )

inlinestatic

ARP packet sender protocol address.

Parameters

arphdr ARP header

Return values

ar_spa Sender protocol address

Definition at line 80 of file if_arp.h.

                                                              {
         return ( arp_sender_ha ( arphdr ) + arphdr->ar_hln );
 }

References arphdr::ar_hln, and arp_sender_ha().

Referenced by arp_rx(), arp_target_ha(), gdbudp_recv(), ipoib_translate_rx_arp(), and ipoib_translate_tx_arp().

◆ arp_target_ha()

static void* arp_target_ha ( struct arphdr * arphdr )

inlinestatic

ARP packet target hardware address.

Parameters

arphdr ARP header

Return values

ar_tha Target hardware address

Definition at line 89 of file if_arp.h.

                                                              {
         return ( arp_sender_pa ( arphdr ) + arphdr->ar_pln );
 }

References arphdr::ar_pln, and arp_sender_pa().

Referenced by arp_rx(), arp_target_pa(), gdbudp_recv(), ipoib_translate_rx_arp(), and ipoib_translate_tx_arp().

◆ arp_target_pa()

static void* arp_target_pa ( struct arphdr * arphdr )

inlinestatic

ARP packet target protocol address.

Parameters

arphdr ARP header

Return values

ar_tpa Target protocol address

Definition at line 98 of file if_arp.h.

                                                              {
         return ( arp_target_ha ( arphdr ) + arphdr->ar_hln );
 }

References arphdr::ar_hln, and arp_target_ha().

Referenced by arp_rx(), gdbudp_recv(), ipoib_translate_rx_arp(), and ipoib_translate_tx_arp().

◆ arp_len()

static size_t arp_len ( struct arphdr * arphdr )

inlinestatic

ARP packet length.

Parameters

arphdr ARP header

Return values

len	Length (including header)

Definition at line 107 of file if_arp.h.

                                                        {
         return ( sizeof ( *arphdr ) +
                  ( 2 * ( arphdr->ar_hln + arphdr->ar_pln ) ) );
 }

References arphdr::ar_hln, and arphdr::ar_pln.

Referenced by arp_rx().

Variable Documentation

◆ ar_hrd

uint16_t ar_hrd

Link-layer protocol.

This is an ARPHRD_XXX constant

Definition at line 15 of file if_arp.h.

◆ ar_pro

uint16_t ar_pro

Network-layer protocol.

This is, for Ethernet, an ETH_P_XXX constant.

Definition at line 20 of file if_arp.h.

◆ ar_hln

uint8_t ar_hln

Link-layer address length.

Definition at line 22 of file if_arp.h.

◆ ar_pln

uint8_t ar_pln

Network-layer address length.

Definition at line 24 of file if_arp.h.

◆ ar_op

uint16_t ar_op

ARP opcode.

Definition at line 26 of file if_arp.h.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ ARPHRD_NETROM

◆ ARPHRD_ETHER

◆ ARPHRD_EETHER

◆ ARPHRD_AX25

◆ ARPHRD_PRONET

◆ ARPHRD_CHAOS

◆ ARPHRD_IEEE802

◆ ARPHRD_ARCNET

◆ ARPHRD_APPLETLK

◆ ARPHRD_DLCI

◆ ARPHRD_ATM

◆ ARPHRD_METRICOM

◆ ARPHRD_IEEE1394

◆ ARPHRD_EUI64

◆ ARPHRD_INFINIBAND

◆ ARPOP_REQUEST

◆ ARPOP_REPLY

◆ ARPOP_RREQUEST

◆ ARPOP_RREPLY

◆ ARPOP_InREQUEST

◆ ARPOP_InREPLY

◆ ARPOP_NAK

Function Documentation

◆ FILE_LICENCE()

◆ __attribute__()

◆ arp_sender_ha()

◆ arp_sender_pa()

◆ arp_target_ha()

◆ arp_target_pa()

◆ arp_len()

Variable Documentation

◆ ar_hrd

◆ ar_pro

◆ ar_hln

◆ ar_pln

◆ ar_op

◆ attribute()