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