reactos/drivers/network/tcpip/include/arp.h

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS TCP/IP protocol driver
* FILE: include/arp.h
* PURPOSE: Address Resolution Protocol definitions
*/
#pragma once
typedef struct ARP_HEADER {
USHORT HWType; /* Hardware Type */
USHORT ProtoType; /* Protocol Type */
UCHAR HWAddrLen; /* Hardware Address Length */
UCHAR ProtoAddrLen; /* Protocol Address Length */
USHORT Opcode; /* Opcode */
/* Sender's Hardware Address */
/* Sender's Protocol Address */
/* Target's Hardware Address */
/* Target's Protocol Address */
} ARP_HEADER, *PARP_HEADER;
/* We swap constants so we can compare values at runtime without swapping them */
#define ARP_OPCODE_REQUEST WH2N(0x0001) /* ARP request */
#define ARP_OPCODE_REPLY WH2N(0x0002) /* ARP reply */
BOOLEAN ARPTransmit(PIP_ADDRESS Address, PVOID LinkAddress, PIP_INTERFACE Interface);
VOID ARPReceive(
PVOID Context,
PIP_PACKET Packet);
/* EOF */