Travis Geiselbrecht | 1d0df69 | 2008-09-01 02:26:09 -0700 | [diff] [blame^] | 1 | /* |
| 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. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without modification, |
| 8 | * are permitted provided that the following conditions are met: |
| 9 | * |
| 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. |
| 17 | * |
| 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 |
| 27 | * OF SUCH DAMAGE. |
| 28 | * |
| 29 | * This file is part of the lwIP TCP/IP stack. |
| 30 | * |
| 31 | * Author: Adam Dunkels <adam@sics.se> |
| 32 | * |
| 33 | */ |
| 34 | |
| 35 | #ifndef __NETIF_ETHARP_H__ |
| 36 | #define __NETIF_ETHARP_H__ |
| 37 | |
| 38 | #ifndef ETH_PAD_SIZE |
| 39 | #define ETH_PAD_SIZE 0 |
| 40 | #endif |
| 41 | |
| 42 | #include "lwip/pbuf.h" |
| 43 | #include "lwip/ip_addr.h" |
| 44 | #include "lwip/netif.h" |
| 45 | #include "lwip/ip.h" |
| 46 | |
| 47 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 48 | # include "arch/bpstruct.h" |
| 49 | #endif |
| 50 | PACK_STRUCT_BEGIN |
| 51 | struct eth_addr { |
| 52 | PACK_STRUCT_FIELD(u8_t addr[6]); |
| 53 | } PACK_STRUCT_STRUCT; |
| 54 | PACK_STRUCT_END |
| 55 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 56 | # include "arch/epstruct.h" |
| 57 | #endif |
| 58 | |
| 59 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 60 | # include "arch/bpstruct.h" |
| 61 | #endif |
| 62 | PACK_STRUCT_BEGIN |
| 63 | struct eth_hdr { |
| 64 | #if ETH_PAD_SIZE |
| 65 | PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]); |
| 66 | #endif |
| 67 | PACK_STRUCT_FIELD(struct eth_addr dest); |
| 68 | PACK_STRUCT_FIELD(struct eth_addr src); |
| 69 | PACK_STRUCT_FIELD(u16_t type); |
| 70 | } PACK_STRUCT_STRUCT; |
| 71 | PACK_STRUCT_END |
| 72 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 73 | # include "arch/epstruct.h" |
| 74 | #endif |
| 75 | |
| 76 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 77 | # include "arch/bpstruct.h" |
| 78 | #endif |
| 79 | PACK_STRUCT_BEGIN |
| 80 | /** the ARP message */ |
| 81 | struct etharp_hdr { |
| 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); |
| 91 | } PACK_STRUCT_STRUCT; |
| 92 | PACK_STRUCT_END |
| 93 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 94 | # include "arch/epstruct.h" |
| 95 | #endif |
| 96 | |
| 97 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 98 | # include "arch/bpstruct.h" |
| 99 | #endif |
| 100 | PACK_STRUCT_BEGIN |
| 101 | struct ethip_hdr { |
| 102 | PACK_STRUCT_FIELD(struct eth_hdr eth); |
| 103 | PACK_STRUCT_FIELD(struct ip_hdr ip); |
| 104 | } PACK_STRUCT_STRUCT; |
| 105 | PACK_STRUCT_END |
| 106 | #ifdef PACK_STRUCT_USE_INCLUDES |
| 107 | # include "arch/epstruct.h" |
| 108 | #endif |
| 109 | |
| 110 | /** 5 seconds period */ |
| 111 | #define ARP_TMR_INTERVAL 5000 |
| 112 | |
| 113 | #define ETHTYPE_ARP 0x0806 |
| 114 | #define ETHTYPE_IP 0x0800 |
| 115 | |
| 116 | void etharp_init(void); |
| 117 | void etharp_tmr(void); |
| 118 | void etharp_ip_input(struct netif *netif, struct pbuf *p); |
| 119 | void etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, |
| 120 | struct pbuf *p); |
| 121 | err_t etharp_output(struct netif *netif, struct ip_addr *ipaddr, |
| 122 | struct pbuf *q); |
| 123 | err_t etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q); |
| 124 | err_t etharp_request(struct netif *netif, struct ip_addr *ipaddr); |
| 125 | |
| 126 | #endif /* __NETIF_ARP_H__ */ |