#include <sys/types.h>
#include <lib/kprintf.h>
#include "net/debug.h"
#include "net/ipv4/inet.h"
#include "netif/arp.h"
#include "net/ipv4/ip.h"

Include dependency graph for arp.c:

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Data Structures
struct	arp_entry

struct	arp_hdr

struct	ethip_hdr

Macros
#define	ARP_MAXAGE 2 /* 120 * 10 seconds = 20 minutes. */

#define	ARP_REPLY 2

#define	ARP_REQUEST 1

#define	ARPH_HWLEN(hdr) (NTOHS((hdr)->_hwlen_protolen) >> 8)

#define	ARPH_HWLEN_SET(hdr, len) (hdr)->_hwlen_protolen = HTONS(ARPH_PROTOLEN(hdr) \| ((len) << 8))

#define	ARPH_PROTOLEN(hdr) (NTOHS((hdr)->_hwlen_protolen) & 0xff)

#define	ARPH_PROTOLEN_SET(hdr, len) (hdr)->_hwlen_protolen = HTONS((len) \| (ARPH_HWLEN(hdr) << 8))

#define	HWTYPE_ETHERNET 1

Functions
struct pbuf *	arp_arp_input (struct netif netif, struct eth_addr ethaddr, struct pbuf *p)

void	arp_init (void)

void	arp_ip_input (struct netif netif, struct pbuf p)

struct eth_addr *	arp_lookup (struct ip_addr *ipaddr)

struct pbuf *	arp_query (struct netif netif, struct eth_addr ethaddr, struct ip_addr *ipaddr)

void	arp_tmr (void)

Variables
PACK_STRUCT_BEGIN struct arp_hdr	PACK_STRUCT_STRUCT

Macro Definition Documentation

◆ ARP_MAXAGE

#define ARP_MAXAGE 2 /* 120 * 10 seconds = 20 minutes. */

Definition at line 46 of file arp.c.

◆ ARP_REPLY

#define ARP_REPLY 2

Definition at line 51 of file arp.c.

◆ ARP_REQUEST

#define ARP_REQUEST 1

Definition at line 50 of file arp.c.

◆ ARPH_HWLEN

#define ARPH_HWLEN ( hdr ) (NTOHS((hdr)->_hwlen_protolen) >> 8)

Definition at line 68 of file arp.c.

◆ ARPH_HWLEN_SET

#define ARPH_HWLEN_SET	(	hdr,
		len
	)	(hdr)->_hwlen_protolen = HTONS(ARPH_PROTOLEN(hdr) \| ((len) << 8))

Definition at line 72 of file arp.c.

◆ ARPH_PROTOLEN

#define ARPH_PROTOLEN ( hdr ) (NTOHS((hdr)->_hwlen_protolen) & 0xff)

Definition at line 69 of file arp.c.

◆ ARPH_PROTOLEN_SET

#define ARPH_PROTOLEN_SET	(	hdr,
		len
	)	(hdr)->_hwlen_protolen = HTONS((len) \| (ARPH_HWLEN(hdr) << 8))

Definition at line 73 of file arp.c.

◆ HWTYPE_ETHERNET

#define HWTYPE_ETHERNET 1

Definition at line 48 of file arp.c.

Function Documentation

◆ arp_arp_input()

struct pbuf* arp_arp_input	(	struct netif *	netif,
		struct eth_addr *	ethaddr,
		struct pbuf *	p
	)

Definition at line 197 of file arp.c.

References ARP_REPLY, ARP_REQUEST, ARPH_HWLEN_SET, ARPH_PROTOLEN_SET, ETHTYPE_ARP, ETHTYPE_IP, htons, HWTYPE_ETHERNET, ip_addr_cmp, ip_addr_set, kprintf(), NULL, pbuf::payload, pbuf_free(), and pbuf::tot_len.

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◆ arp_init()

void arp_init ( void )

Definition at line 93 of file arp.c.

References ARP_TABLE_SIZE, and ip_addr_set.

◆ arp_ip_input()

void arp_ip_input	(	struct netif *	netif,
		struct pbuf *	p
	)

Definition at line 181 of file arp.c.

References pbuf::payload.

◆ arp_lookup()

struct eth_addr* arp_lookup ( struct ip_addr * ipaddr )

Definition at line 260 of file arp.c.

References ARP_TABLE_SIZE, and ip_addr_cmp.

◆ arp_query()

struct pbuf* arp_query	(	struct netif *	netif,
		struct eth_addr *	ethaddr,
		struct ip_addr *	ipaddr
	)

Definition at line 273 of file arp.c.

References ARP_REQUEST, ARPH_HWLEN_SET, ARPH_PROTOLEN_SET, ETHTYPE_ARP, ETHTYPE_IP, htons, HWTYPE_ETHERNET, ip_addr_set, NULL, pbuf::payload, pbuf_alloc(), PBUF_LINK, and PBUF_RAM.

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◆ arp_tmr()

void arp_tmr ( void )

Definition at line 104 of file arp.c.

Variable Documentation

◆ PACK_STRUCT_STRUCT

PACK_STRUCT_BEGIN struct arp_hdr PACK_STRUCT_STRUCT

Data Structures

Macros

Functions

Variables