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 #ifndef ETH_PAD_SIZE
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39 #define ETH_PAD_SIZE 0
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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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47 #ifdef PACK_STRUCT_USE_INCLUDES
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48 # include "arch/bpstruct.h"
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52 PACK_STRUCT_FIELD(u8_t addr[6]);
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53 } PACK_STRUCT_STRUCT;
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55 #ifdef PACK_STRUCT_USE_INCLUDES
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56 # include "arch/epstruct.h"
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59 #ifdef PACK_STRUCT_USE_INCLUDES
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60 # include "arch/bpstruct.h"
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65 PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
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67 PACK_STRUCT_FIELD(struct eth_addr dest);
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68 PACK_STRUCT_FIELD(struct eth_addr src);
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69 PACK_STRUCT_FIELD(u16_t type);
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70 } PACK_STRUCT_STRUCT;
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72 #ifdef PACK_STRUCT_USE_INCLUDES
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73 # include "arch/epstruct.h"
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76 #ifdef PACK_STRUCT_USE_INCLUDES
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77 # include "arch/bpstruct.h"
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80 /** the ARP message */
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82 PACK_STRUCT_FIELD(struct eth_hdr ethhdr);
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83 PACK_STRUCT_FIELD(u16_t hwtype);
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84 PACK_STRUCT_FIELD(u16_t proto);
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85 PACK_STRUCT_FIELD(u16_t _hwlen_protolen);
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86 PACK_STRUCT_FIELD(u16_t opcode);
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87 PACK_STRUCT_FIELD(struct eth_addr shwaddr);
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88 PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);
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89 PACK_STRUCT_FIELD(struct eth_addr dhwaddr);
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90 PACK_STRUCT_FIELD(struct ip_addr2 dipaddr);
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91 } PACK_STRUCT_STRUCT;
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93 #ifdef PACK_STRUCT_USE_INCLUDES
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94 # include "arch/epstruct.h"
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97 #ifdef PACK_STRUCT_USE_INCLUDES
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98 # include "arch/bpstruct.h"
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102 PACK_STRUCT_FIELD(struct eth_hdr eth);
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103 PACK_STRUCT_FIELD(struct ip_hdr ip);
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104 } PACK_STRUCT_STRUCT;
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106 #ifdef PACK_STRUCT_USE_INCLUDES
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107 # include "arch/epstruct.h"
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110 /** 5 seconds period */
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111 #define ARP_TMR_INTERVAL 5000
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113 #define ETHTYPE_ARP 0x0806
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114 #define ETHTYPE_IP 0x0800
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117 void etharp_init(void);
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118 void etharp_tmr(void);
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119 s8_t etharp_find_addr(struct netif *netif, struct ip_addr *ipaddr,
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120 struct eth_addr **eth_ret, struct ip_addr **ip_ret);
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121 void etharp_ip_input(struct netif *netif, struct pbuf *p);
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122 void etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr,
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124 err_t etharp_output(struct netif *netif, struct ip_addr *ipaddr,
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126 err_t etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q);
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127 err_t etharp_request(struct netif *netif, struct ip_addr *ipaddr);
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129 #endif /* __NETIF_ARP_H__ */
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