arp.h File Reference

#include <freeradius-devel/util/packet.h>
#include <freeradius-devel/util/rand.h>
#include <freeradius-devel/util/log.h>
#include <freeradius-devel/util/net.h>
#include <freeradius-devel/protocol/arp/dictionary.h>
#include <freeradius-devel/protocol/arp/rfc826.h>
#include <sys/ioctl.h>

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Data Structures
struct	fr_arp_packet_t

Macros
#define	ETH_TYPE_ARP   (0x0806)
#define	FR_ARP_PACKET_CODE_VALID(_code)   (((_code) > 0) && ((_code) < FR_ARP_CODE_MAX))
#define	FR_ARP_PACKET_SIZE   (28)

Enumerations
enum	fr_arp_packet_code_t {   FR_ARP_INVALID = 0 ,   FR_ARP_REQUEST = 1 ,   FR_ARP_REPLY = 2 ,   FR_ARP_REVERSE_REQUEST = 3 ,   FR_ARP_REVERSE_REPLY = 4 ,   FR_ARP_CODE_MAX = 5 ,   FR_ARP_DO_NOT_RESPOND = 256 }

Functions
ssize_t	fr_arp_decode (TALLOC_CTX *ctx, fr_pair_list_t *out, uint8_t const *packet, size_t packet_len)
	Decode a raw ARP packet into VPs.
ssize_t	fr_arp_encode (fr_dbuff_t *dbuff, uint8_t const *original, fr_pair_list_t *vps)
	Encode VPS into a raw ARP packet.
int	fr_arp_entry_add (int fd, char const *interface, uint8_t ipaddr[static 4], uint8_t macaddr[static 6])
void	fr_arp_global_free (void)
int	fr_arp_global_init (void)

Variables
char const *	fr_arp_packet_codes [FR_ARP_CODE_MAX]

---

Data Structure Documentation

fr_arp_packet_t

struct fr_arp_packet_t

Definition at line 55 of file arp.h.

Data Fields
uint8_t	hlen	Length of hardware address.
uint8_t	htype[2]	Format of hardware address.
uint8_t	op[2]	1 - Request, 2 - Reply.
uint8_t	plen	Length of protocol address.
uint8_t	ptype[2]	Format of protocol address.
uint8_t	sha[ETHER_ADDR_LEN]	sender hardware address.
uint8_t	spa[4]	Sender protocol address.
uint8_t	tha[ETHER_ADDR_LEN]	Target hardware address.
uint8_t	tpa[4]	Target protocol address.

Macro Definition Documentation

ETH_TYPE_ARP

#define ETH_TYPE_ARP   (0x0806)

Definition at line 38 of file arp.h.

FR_ARP_PACKET_CODE_VALID

#define FR_ARP_PACKET_CODE_VALID

(

_code

)

(((_code) > 0) && ((_code) < FR_ARP_CODE_MAX))

Definition at line 77 of file arp.h.

FR_ARP_PACKET_SIZE

#define FR_ARP_PACKET_SIZE   (28)

Definition at line 37 of file arp.h.

Enumeration Type Documentation

fr_arp_packet_code_t

enum fr_arp_packet_code_t

Enumerator
FR_ARP_INVALID
FR_ARP_REQUEST
FR_ARP_REPLY
FR_ARP_REVERSE_REQUEST
FR_ARP_REVERSE_REPLY
FR_ARP_CODE_MAX
FR_ARP_DO_NOT_RESPOND

Definition at line 67 of file arp.h.

Function Documentation

fr_arp_decode()

ssize_t fr_arp_decode	(	TALLOC_CTX *	ctx,
		fr_pair_list_t *	out,
		uint8_t const *	packet,
		size_t	packet_len
	)

Decode a raw ARP packet into VPs.

Definition at line 309 of file base.c.

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fr_arp_encode()

ssize_t fr_arp_encode	(	fr_dbuff_t *	dbuff,
		uint8_t const *	original,
		fr_pair_list_t *	vps
	)

Encode VPS into a raw ARP packet.

Definition at line 234 of file base.c.

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fr_arp_entry_add()

int fr_arp_entry_add	(	int	fd,
		char const *	interface,
		uint8_t	ipaddr[static 4],
		uint8_t	macaddr[static 6]
	)

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fr_arp_global_free()

void fr_arp_global_free

(

void

)

Definition at line 372 of file base.c.

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fr_arp_global_init()

int fr_arp_global_init

(

void

)

Definition at line 349 of file base.c.

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Variable Documentation

fr_arp_packet_codes

char const* fr_arp_packet_codes[FR_ARP_CODE_MAX]

extern

Definition at line 75 of file base.c.