2 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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3 * Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
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4 * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
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5 * All rights reserved.
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7 * Redistribution and use in source and binary forms, with or without modification,
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8 * are permitted provided that the following conditions are met:
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10 * 1. Redistributions of source code must retain the above copyright notice,
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11 * this list of conditions and the following disclaimer.
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12 * 2. Redistributions in binary form must reproduce the above copyright notice,
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13 * this list of conditions and the following disclaimer in the documentation
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14 * and/or other materials provided with the distribution.
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15 * 3. The name of the author may not be used to endorse or promote products
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16 * derived from this software without specific prior written permission.
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18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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19 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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21 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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23 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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29 * This file is part of the lwIP TCP/IP stack.
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31 * Author: Adam Dunkels <adam@sics.se>
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35 #ifndef __NETIF_ETHARP_H__
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36 #define __NETIF_ETHARP_H__
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38 #include "lwip/opt.h"
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40 #if LWIP_ARP /* don't build if not configured for use in lwipopts.h */
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42 #include "lwip/pbuf.h"
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43 #include "lwip/ip_addr.h"
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44 #include "lwip/netif.h"
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45 #include "lwip/ip.h"
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51 #ifndef ETH_PAD_SIZE
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52 #define ETH_PAD_SIZE 0
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55 #ifndef ETHARP_HWADDR_LEN
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56 #define ETHARP_HWADDR_LEN 6
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59 #ifdef PACK_STRUCT_USE_INCLUDES
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60 # include "arch/bpstruct.h"
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63 #if (defined(__MWERKS__) || defined(__CWCC__))
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64 #pragma options align= packed
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67 PACK_STRUCT_FIELD(u8_t addr[ETHARP_HWADDR_LEN]);
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68 } PACK_STRUCT_STRUCT;
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70 #ifdef PACK_STRUCT_USE_INCLUDES
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71 # include "arch/epstruct.h"
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74 #ifdef PACK_STRUCT_USE_INCLUDES
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75 # include "arch/bpstruct.h"
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78 #if (defined(__MWERKS__) || defined(__CWCC__))
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79 #pragma options align= packed
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83 PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
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85 PACK_STRUCT_FIELD(struct eth_addr dest);
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86 PACK_STRUCT_FIELD(struct eth_addr src);
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87 PACK_STRUCT_FIELD(u16_t type);
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88 } PACK_STRUCT_STRUCT;
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90 #ifdef PACK_STRUCT_USE_INCLUDES
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91 # include "arch/epstruct.h"
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94 #ifdef PACK_STRUCT_USE_INCLUDES
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95 # include "arch/bpstruct.h"
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98 #if (defined(__MWERKS__) || defined(__CWCC__))
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99 #pragma options align= packed
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101 /** the ARP message */
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102 struct etharp_hdr {
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103 PACK_STRUCT_FIELD(struct eth_hdr ethhdr);
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104 PACK_STRUCT_FIELD(u16_t hwtype);
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105 PACK_STRUCT_FIELD(u16_t proto);
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106 PACK_STRUCT_FIELD(u16_t _hwlen_protolen);
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107 PACK_STRUCT_FIELD(u16_t opcode);
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108 PACK_STRUCT_FIELD(struct eth_addr shwaddr);
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109 PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);
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110 PACK_STRUCT_FIELD(struct eth_addr dhwaddr);
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111 PACK_STRUCT_FIELD(struct ip_addr2 dipaddr);
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112 } PACK_STRUCT_STRUCT;
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114 #ifdef PACK_STRUCT_USE_INCLUDES
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115 # include "arch/epstruct.h"
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118 #ifdef PACK_STRUCT_USE_INCLUDES
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119 # include "arch/bpstruct.h"
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122 #if (defined(__MWERKS__) || defined(__CWCC__))
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123 #pragma options align= packed
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126 PACK_STRUCT_FIELD(struct eth_hdr eth);
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127 PACK_STRUCT_FIELD(struct ip_hdr ip);
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128 } PACK_STRUCT_STRUCT;
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130 #ifdef PACK_STRUCT_USE_INCLUDES
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131 # include "arch/epstruct.h"
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134 /** 5 seconds period */
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135 #define ARP_TMR_INTERVAL 5000
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137 #define ETHTYPE_ARP 0x0806
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138 #define ETHTYPE_IP 0x0800
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139 #define ETHTYPE_PPPOEDISC 0x8863 /* PPP Over Ethernet Discovery Stage */
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140 #define ETHTYPE_PPPOE 0x8864 /* PPP Over Ethernet Session Stage */
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142 /** ARP message types (opcodes) */
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143 #define ARP_REQUEST 1
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144 #define ARP_REPLY 2
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147 /** struct for queueing outgoing packets for unknown address
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148 * defined here to be accessed by memp.h
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150 struct etharp_q_entry {
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151 struct etharp_q_entry *next;
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154 #endif /* ARP_QUEUEING */
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156 #define etharp_init() /* Compatibility define, not init needed. */
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157 void etharp_tmr(void);
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158 s8_t etharp_find_addr(struct netif *netif, struct ip_addr *ipaddr,
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159 struct eth_addr **eth_ret, struct ip_addr **ip_ret);
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160 void etharp_ip_input(struct netif *netif, struct pbuf *p);
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161 void etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr,
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163 err_t etharp_output(struct netif *netif, struct pbuf *q, struct ip_addr *ipaddr);
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164 err_t etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q);
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165 err_t etharp_request(struct netif *netif, struct ip_addr *ipaddr);
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167 err_t ethernet_input(struct pbuf *p, struct netif *netif);
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170 err_t etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
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171 const struct eth_addr *ethdst_addr,
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172 const struct eth_addr *hwsrc_addr, const struct ip_addr *ipsrc_addr,
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173 const struct eth_addr *hwdst_addr, const struct ip_addr *ipdst_addr,
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174 const u16_t opcode);
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175 #endif /* LWIP_AUTOIP */
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177 #define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETHARP_HWADDR_LEN) == 0)
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179 extern const struct eth_addr ethbroadcast, ethzero;
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185 #endif /* LWIP_ARP */
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187 #endif /* __NETIF_ARP_H__ */
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