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