etharp.h File Reference

#include "lwip/arch.h"
#include "lwip/prot/ethernet.h"

Go to the source code of this file.

Classes
struct	ip4_addr_wordaligned
struct	etharp_hdr

Macros
#define	ETHARP_HWADDR_LEN   ETH_HWADDR_LEN
#define	IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(dest, src)
#define	IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(dest, src)
#define	SIZEOF_ETHARP_HDR   28

Enumerations
enum	etharp_opcode { ARP_REQUEST = 1 , ARP_REPLY = 2 }

Variables
PACK_STRUCT_BEGIN struct ip4_addr_wordaligned	PACK_STRUCT_STRUCT

Detailed Description

ARP protocol definitions

Definition in file etharp.h.

Macro Definition Documentation

ETHARP_HWADDR_LEN

#define ETHARP_HWADDR_LEN   ETH_HWADDR_LEN

Definition at line 49 of file etharp.h.

IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T

#define IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T	(		dest,
			src )

Value:

SMEMCPY(dest, src, sizeof(ip4_addr_t))

MEMCPY-like copying of IP addresses where addresses are known to be 16-bit-aligned if the port is correctly configured (so a port could define this to copying 2 u16_t's) - no NULL-pointer-checking needed.

Definition at line 79 of file etharp.h.

IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T

#define IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T	(		dest,
			src )

Value:

SMEMCPY(dest, src, sizeof(ip4_addr_t))

MEMCPY-like copying of IP addresses where addresses are known to be 16-bit-aligned if the port is correctly configured (so a port could define this to copying 2 u16_t's) - no NULL-pointer-checking needed.

Definition at line 72 of file etharp.h.

SIZEOF_ETHARP_HDR

#define SIZEOF_ETHARP_HDR   28

Definition at line 103 of file etharp.h.

Enumeration Type Documentation

etharp_opcode

enum etharp_opcode

Definition at line 106 of file etharp.h.