130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
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/*
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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* Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
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* Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef __NETIF_ETHARP_H__
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#define __NETIF_ETHARP_H__
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#ifndef ETH_PAD_SIZE
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#define ETH_PAD_SIZE 0
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#endif
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#include "lwip/pbuf.h"
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#include "lwip/ip_addr.h"
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#include "lwip/netif.h"
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#include "lwip/ip.h"
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct eth_addr {
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PACK_STRUCT_FIELD(u8_t addr[6]);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct eth_hdr {
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#if ETH_PAD_SIZE
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PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
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#endif
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PACK_STRUCT_FIELD(struct eth_addr dest);
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PACK_STRUCT_FIELD(struct eth_addr src);
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PACK_STRUCT_FIELD(u16_t type);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** the ARP message */
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struct etharp_hdr {
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PACK_STRUCT_FIELD(struct eth_hdr ethhdr);
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PACK_STRUCT_FIELD(u16_t hwtype);
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PACK_STRUCT_FIELD(u16_t proto);
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PACK_STRUCT_FIELD(u16_t _hwlen_protolen);
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PACK_STRUCT_FIELD(u16_t opcode);
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PACK_STRUCT_FIELD(struct eth_addr shwaddr);
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PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);
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PACK_STRUCT_FIELD(struct eth_addr dhwaddr);
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PACK_STRUCT_FIELD(struct ip_addr2 dipaddr);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct ethip_hdr {
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PACK_STRUCT_FIELD(struct eth_hdr eth);
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PACK_STRUCT_FIELD(struct ip_hdr ip);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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/** 5 seconds period */
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#define ARP_TMR_INTERVAL 5000
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#define ETHTYPE_ARP 0x0806
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#define ETHTYPE_IP 0x0800
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void etharp_init(void);
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void etharp_tmr(void);
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s8_t etharp_find_addr(struct netif *netif, struct ip_addr *ipaddr,
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struct eth_addr **eth_ret, struct ip_addr **ip_ret);
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void etharp_ip_input(struct netif *netif, struct pbuf *p);
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void etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr,
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struct pbuf *p);
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err_t etharp_output(struct netif *netif, struct ip_addr *ipaddr,
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struct pbuf *q);
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err_t etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q);
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err_t etharp_request(struct netif *netif, struct ip_addr *ipaddr);
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#endif /* __NETIF_ARP_H__ */
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