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

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS TCP/IP protocol driver
   4  * FILE:        include/arp.h
   5  * PURPOSE:     Address Resolution Protocol definitions
   6  */
   7
   8 #pragma once
   9
  10 typedef struct ARP_HEADER {
  11     USHORT HWType;       /* Hardware Type */
  12     USHORT ProtoType;    /* Protocol Type */
  13     UCHAR  HWAddrLen;    /* Hardware Address Length */
  14     UCHAR  ProtoAddrLen; /* Protocol Address Length */
  15     USHORT Opcode;       /* Opcode */
  16     /* Sender's Hardware Address */
  17     /* Sender's Protocol Address */
  18     /* Target's Hardware Address */
  19     /* Target's Protocol Address */
  20 } ARP_HEADER, *PARP_HEADER;
  21
  22 /* We swap constants so we can compare values at runtime without swapping them */
  23 #define ARP_OPCODE_REQUEST WH2N(0x0001) /* ARP request */
  24 #define ARP_OPCODE_REPLY   WH2N(0x0002) /* ARP reply */
  25
  26
  27 BOOLEAN ARPTransmit(PIP_ADDRESS Address, PVOID LinkAddress, PIP_INTERFACE Interface);
  28
  29 VOID ARPReceive(
  30     PVOID Context,
  31     PIP_PACKET Packet);
  32
  33 /* EOF */