proto_arp.c File Reference

#include <freeradius-devel/radiusd.h>
#include <freeradius-devel/protocol.h>
#include <freeradius-devel/modules.h>
#include <freeradius-devel/process.h>
#include <freeradius-devel/rad_assert.h>
#include <freeradius-devel/pcap.h>
#include <net/if_arp.h>

Include dependency graph for proto_arp.c:

Go to the source code of this file.

Data Structures
struct	arp_decode_t
struct	arp_over_ether
struct	arp_socket_t

Typedefs
typedef struct arp_decode_t	arp_decode_t
typedef struct arp_over_ether	arp_over_ether_t
typedef struct arp_socket_t	arp_socket_t

Functions
static const char *	arp_pcap_filter_builder (UNUSED rad_listen_t *this)
	Build PCAP filter string to pass to libpcap Will be called by init_pcap. More...
static int	arp_process (REQUEST *request)
static int	arp_socket_decode (UNUSED rad_listen_t *listener, REQUEST *request)
static int	arp_socket_encode (UNUSED rad_listen_t *listener, UNUSED REQUEST *request)
static void	arp_socket_free (rad_listen_t *this)
static int	arp_socket_parse (CONF_SECTION *cs, rad_listen_t *this)
static int	arp_socket_print (const rad_listen_t *this, char *buffer, size_t bufsize)
static int	arp_socket_recv (rad_listen_t *listener)
static int	arp_socket_send (UNUSED rad_listen_t *listener, UNUSED REQUEST *request)

Variables
static const arp_decode_t	header_names []
fr_protocol_t	proto_arp

---

Data Structure Documentation

struct arp_decode_t

Definition at line 177 of file proto_arp.c.

Data Fields
size_t	len
char const *	name

struct arp_over_ether

Definition at line 40 of file proto_arp.c.

Data Fields
uint8_t	hlen	Length of hardware address.
uint16_t	htype	Format of hardware address.
uint8_t	op	1 - Request, 2 - Reply.
uint8_t	plen	Length of protocol address.
uint16_t	ptype	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.

struct arp_socket_t

Definition at line 31 of file proto_arp.c.

Collaboration diagram for arp_socket_t:

Data Fields
RADCLIENT	client
uint64_t	counter
listen_socket_t	lsock

Typedef Documentation

typedef struct arp_decode_t arp_decode_t

typedef struct arp_over_ether arp_over_ether_t

typedef struct arp_socket_t arp_socket_t

Function Documentation

static const char* arp_pcap_filter_builder ( UNUSED rad_listen_t *  this )

static

Build PCAP filter string to pass to libpcap Will be called by init_pcap.

Parameters

this	listen section (not used)

Returns

PCAP filter string

Definition at line 251 of file proto_arp.c.

Here is the caller graph for this function:

static int arp_process ( REQUEST *  request )

static

Definition at line 52 of file proto_arp.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static int arp_socket_decode ( UNUSED rad_listen_t *  listener, REQUEST *  request  )

static

Definition at line 196 of file proto_arp.c.

Here is the call graph for this function:

static int arp_socket_encode ( UNUSED rad_listen_t *  listener, UNUSED REQUEST *  request  )

static

Definition at line 171 of file proto_arp.c.

static void arp_socket_free ( rad_listen_t *  this )

static

Definition at line 237 of file proto_arp.c.

static int arp_socket_parse ( CONF_SECTION *  cs, rad_listen_t *  this  )

static

Definition at line 256 of file proto_arp.c.

Here is the call graph for this function:

static int arp_socket_print ( const rad_listen_t *  this, char *  buffer, size_t  bufsize  )

static

Definition at line 296 of file proto_arp.c.

Here is the call graph for this function:

static int arp_socket_recv ( rad_listen_t *  listener )

static

Definition at line 95 of file proto_arp.c.

Here is the call graph for this function:

static int arp_socket_send ( UNUSED rad_listen_t *  listener, UNUSED REQUEST *  request  )

static

Definition at line 165 of file proto_arp.c.

Variable Documentation

const arp_decode_t header_names[]

static

Initial value:

= {
        { "ARP-Hardware-Format",                2 },
        { "ARP-Protocol-Format",                2 },
        { "ARP-Hardware-Address-Length",        1 },
        { "ARP-Protocol-Address-Length",        1 },
        { "ARP-Operation",                      2 },
        { "ARP-Sender-Hardware-Address",        6 },
        { "ARP-Sender-Protocol-Address",        4 },
        { "ARP-Target-Hardware-Address",        6 },
        { "ARP-Target-Protocol-Address",        4 },

        { NULL, 0 }
}

Definition at line 182 of file proto_arp.c.

fr_protocol_t proto_arp

Initial value:

= {
        .magic          = RLM_MODULE_INIT,
        .name           = "arp",
        .inst_size      = sizeof(arp_socket_t),
        .transports     = 0,
        .tls            = false,
        .parse          = arp_socket_parse,
        .open           = common_socket_open,
        .free           = arp_socket_free,
        .recv           = arp_socket_recv,
        .send           = arp_socket_send,
        .print          = arp_socket_print,
        .debug          = common_packet_debug,
        .encode         = arp_socket_encode,
        .decode         = arp_socket_decode
}

Definition at line 306 of file proto_arp.c.