| /* |
| * Copyright (c) 2001-2003 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| |
| #ifndef __NETIF_ETHARP_H__ |
| #define __NETIF_ETHARP_H__ |
| |
| #include "lwip/pbuf.h" |
| #include "lwip/ip_addr.h" |
| #include "lwip/netif.h" |
| #include "lwip/ip.h" |
| |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct eth_addr { |
| PACK_STRUCT_FIELD(u8_t addr[6]); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| |
| PACK_STRUCT_BEGIN |
| struct eth_hdr { |
| PACK_STRUCT_FIELD(struct eth_addr dest); |
| PACK_STRUCT_FIELD(struct eth_addr src); |
| PACK_STRUCT_FIELD(u16_t type); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| |
| PACK_STRUCT_BEGIN |
| /** the ARP message */ |
| struct etharp_hdr { |
| PACK_STRUCT_FIELD(struct eth_hdr ethhdr); |
| PACK_STRUCT_FIELD(u16_t hwtype); |
| PACK_STRUCT_FIELD(u16_t proto); |
| PACK_STRUCT_FIELD(u16_t _hwlen_protolen); |
| PACK_STRUCT_FIELD(u16_t opcode); |
| PACK_STRUCT_FIELD(struct eth_addr shwaddr); |
| PACK_STRUCT_FIELD(struct ip_addr sipaddr); |
| PACK_STRUCT_FIELD(struct eth_addr dhwaddr); |
| PACK_STRUCT_FIELD(struct ip_addr dipaddr); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| |
| PACK_STRUCT_BEGIN |
| struct ethip_hdr { |
| PACK_STRUCT_FIELD(struct eth_hdr eth); |
| PACK_STRUCT_FIELD(struct ip_hdr ip); |
| }; |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| #define ARP_TMR_INTERVAL 10000 |
| |
| #define ETHTYPE_ARP 0x0806 |
| #define ETHTYPE_IP 0x0800 |
| |
| void etharp_init(void); |
| void etharp_tmr(void); |
| struct pbuf *etharp_ip_input(struct netif *netif, struct pbuf *p); |
| struct pbuf *etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, |
| struct pbuf *p); |
| struct pbuf *etharp_output(struct netif *netif, struct ip_addr *ipaddr, |
| struct pbuf *q); |
| struct pbuf *etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q); |
| |
| |
| |
| #endif /* __NETIF_ARP_H__ */ |