Adam Green / Mbed 2 deprecated WeatherStation

Web server based weather station using Sparkfun Weather Meters.

Dependencies:   FatFileSystem mbed WeatherMeters SDFileSystem

NetStack/lwip/include/netif/etharp.h@1:c7958aa34fa1, 2012-02-25 (annotated)

Committer:
AdamGreen
Date:
Sat Feb 25 03:28:05 2012 +0000
Revision:
1:c7958aa34fa1
Parent:
0:616601bde9fb 
Use published libraries where possible.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AdamGreen 0:616601bde9fb 1 /*
AdamGreen 0:616601bde9fb 2 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
AdamGreen 0:616601bde9fb 3 * Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
AdamGreen 0:616601bde9fb 4 * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
AdamGreen 0:616601bde9fb 5 * All rights reserved.
AdamGreen 0:616601bde9fb 6 *
AdamGreen 0:616601bde9fb 7 * Redistribution and use in source and binary forms, with or without modification,
AdamGreen 0:616601bde9fb 8 * are permitted provided that the following conditions are met:
AdamGreen 0:616601bde9fb 9 *
AdamGreen 0:616601bde9fb 10 * 1. Redistributions of source code must retain the above copyright notice,
AdamGreen 0:616601bde9fb 11 * this list of conditions and the following disclaimer.
AdamGreen 0:616601bde9fb 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
AdamGreen 0:616601bde9fb 13 * this list of conditions and the following disclaimer in the documentation
AdamGreen 0:616601bde9fb 14 * and/or other materials provided with the distribution.
AdamGreen 0:616601bde9fb 15 * 3. The name of the author may not be used to endorse or promote products
AdamGreen 0:616601bde9fb 16 * derived from this software without specific prior written permission.
AdamGreen 0:616601bde9fb 17 *
AdamGreen 0:616601bde9fb 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
AdamGreen 0:616601bde9fb 19 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
AdamGreen 0:616601bde9fb 20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
AdamGreen 0:616601bde9fb 21 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
AdamGreen 0:616601bde9fb 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
AdamGreen 0:616601bde9fb 23 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
AdamGreen 0:616601bde9fb 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
AdamGreen 0:616601bde9fb 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
AdamGreen 0:616601bde9fb 26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
AdamGreen 0:616601bde9fb 27 * OF SUCH DAMAGE.
AdamGreen 0:616601bde9fb 28 *
AdamGreen 0:616601bde9fb 29 * This file is part of the lwIP TCP/IP stack.
AdamGreen 0:616601bde9fb 30 *
AdamGreen 0:616601bde9fb 31 * Author: Adam Dunkels <adam@sics.se>
AdamGreen 0:616601bde9fb 32 *
AdamGreen 0:616601bde9fb 33 */
AdamGreen 0:616601bde9fb 34
AdamGreen 0:616601bde9fb 35 #ifndef __NETIF_ETHARP_H__
AdamGreen 0:616601bde9fb 36 #define __NETIF_ETHARP_H__
AdamGreen 0:616601bde9fb 37
AdamGreen 0:616601bde9fb 38 #include "lwip/opt.h"
AdamGreen 0:616601bde9fb 39
AdamGreen 0:616601bde9fb 40 #if LWIP_ARP || LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */
AdamGreen 0:616601bde9fb 41
AdamGreen 0:616601bde9fb 42 #include "lwip/pbuf.h"
AdamGreen 0:616601bde9fb 43 #include "lwip/ip_addr.h"
AdamGreen 0:616601bde9fb 44 #include "lwip/netif.h"
AdamGreen 0:616601bde9fb 45 #include "lwip/ip.h"
AdamGreen 0:616601bde9fb 46
AdamGreen 0:616601bde9fb 47 #ifdef __cplusplus
AdamGreen 0:616601bde9fb 48 extern "C" {
AdamGreen 0:616601bde9fb 49 #endif
AdamGreen 0:616601bde9fb 50
AdamGreen 0:616601bde9fb 51 #ifndef ETHARP_HWADDR_LEN
AdamGreen 0:616601bde9fb 52 #define ETHARP_HWADDR_LEN 6
AdamGreen 0:616601bde9fb 53 #endif
AdamGreen 0:616601bde9fb 54
AdamGreen 0:616601bde9fb 55 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 56 # include "arch/bpstruct.h"
AdamGreen 0:616601bde9fb 57 #endif
AdamGreen 0:616601bde9fb 58 PACK_STRUCT_BEGIN
AdamGreen 0:616601bde9fb 59 struct eth_addr {
AdamGreen 0:616601bde9fb 60 PACK_STRUCT_FIELD(u8_t addr[ETHARP_HWADDR_LEN]);
AdamGreen 0:616601bde9fb 61 } PACK_STRUCT_STRUCT;
AdamGreen 0:616601bde9fb 62 PACK_STRUCT_END
AdamGreen 0:616601bde9fb 63 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 64 # include "arch/epstruct.h"
AdamGreen 0:616601bde9fb 65 #endif
AdamGreen 0:616601bde9fb 66
AdamGreen 0:616601bde9fb 67 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 68 # include "arch/bpstruct.h"
AdamGreen 0:616601bde9fb 69 #endif
AdamGreen 0:616601bde9fb 70 PACK_STRUCT_BEGIN
AdamGreen 0:616601bde9fb 71 /* Ethernet header */
AdamGreen 0:616601bde9fb 72 struct eth_hdr {
AdamGreen 0:616601bde9fb 73 #if ETH_PAD_SIZE
AdamGreen 0:616601bde9fb 74 PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
AdamGreen 0:616601bde9fb 75 #endif
AdamGreen 0:616601bde9fb 76 PACK_STRUCT_FIELD(struct eth_addr dest);
AdamGreen 0:616601bde9fb 77 PACK_STRUCT_FIELD(struct eth_addr src);
AdamGreen 0:616601bde9fb 78 PACK_STRUCT_FIELD(u16_t type);
AdamGreen 0:616601bde9fb 79 } PACK_STRUCT_STRUCT;
AdamGreen 0:616601bde9fb 80 PACK_STRUCT_END
AdamGreen 0:616601bde9fb 81 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 82 # include "arch/epstruct.h"
AdamGreen 0:616601bde9fb 83 #endif
AdamGreen 0:616601bde9fb 84
AdamGreen 0:616601bde9fb 85 #define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
AdamGreen 0:616601bde9fb 86
AdamGreen 0:616601bde9fb 87 #if ETHARP_SUPPORT_VLAN
AdamGreen 0:616601bde9fb 88
AdamGreen 0:616601bde9fb 89 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 90 # include "arch/bpstruct.h"
AdamGreen 0:616601bde9fb 91 #endif
AdamGreen 0:616601bde9fb 92 PACK_STRUCT_BEGIN
AdamGreen 0:616601bde9fb 93 /* VLAN header inserted between ethernet header and payload
AdamGreen 0:616601bde9fb 94 * if 'type' in ethernet header is ETHTYPE_VLAN.
AdamGreen 0:616601bde9fb 95 * See IEEE802.Q */
AdamGreen 0:616601bde9fb 96 struct eth_vlan_hdr {
AdamGreen 0:616601bde9fb 97 PACK_STRUCT_FIELD(u16_t tpid);
AdamGreen 0:616601bde9fb 98 PACK_STRUCT_FIELD(u16_t prio_vid);
AdamGreen 0:616601bde9fb 99 } PACK_STRUCT_STRUCT;
AdamGreen 0:616601bde9fb 100 PACK_STRUCT_END
AdamGreen 0:616601bde9fb 101 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 102 # include "arch/epstruct.h"
AdamGreen 0:616601bde9fb 103 #endif
AdamGreen 0:616601bde9fb 104
AdamGreen 0:616601bde9fb 105 #define SIZEOF_VLAN_HDR 4
AdamGreen 0:616601bde9fb 106 #define VLAN_ID(vlan_hdr) (htons((vlan_hdr)->prio_vid) & 0xFFF)
AdamGreen 0:616601bde9fb 107
AdamGreen 0:616601bde9fb 108 #endif /* ETHARP_SUPPORT_VLAN */
AdamGreen 0:616601bde9fb 109
AdamGreen 0:616601bde9fb 110 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 111 # include "arch/bpstruct.h"
AdamGreen 0:616601bde9fb 112 #endif
AdamGreen 0:616601bde9fb 113 PACK_STRUCT_BEGIN
AdamGreen 0:616601bde9fb 114 /* the ARP message, see RFC 826 ("Packet format") */
AdamGreen 0:616601bde9fb 115 struct etharp_hdr {
AdamGreen 0:616601bde9fb 116 PACK_STRUCT_FIELD(u16_t hwtype);
AdamGreen 0:616601bde9fb 117 PACK_STRUCT_FIELD(u16_t proto);
AdamGreen 0:616601bde9fb 118 PACK_STRUCT_FIELD(u8_t hwlen);
AdamGreen 0:616601bde9fb 119 PACK_STRUCT_FIELD(u8_t protolen);
AdamGreen 0:616601bde9fb 120 PACK_STRUCT_FIELD(u16_t opcode);
AdamGreen 0:616601bde9fb 121 PACK_STRUCT_FIELD(struct eth_addr shwaddr);
AdamGreen 0:616601bde9fb 122 PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);
AdamGreen 0:616601bde9fb 123 PACK_STRUCT_FIELD(struct eth_addr dhwaddr);
AdamGreen 0:616601bde9fb 124 PACK_STRUCT_FIELD(struct ip_addr2 dipaddr);
AdamGreen 0:616601bde9fb 125 } PACK_STRUCT_STRUCT;
AdamGreen 0:616601bde9fb 126 PACK_STRUCT_END
AdamGreen 0:616601bde9fb 127 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:616601bde9fb 128 # include "arch/epstruct.h"
AdamGreen 0:616601bde9fb 129 #endif
AdamGreen 0:616601bde9fb 130
AdamGreen 0:616601bde9fb 131 #define SIZEOF_ETHARP_HDR 28
AdamGreen 0:616601bde9fb 132 #define SIZEOF_ETHARP_PACKET (SIZEOF_ETH_HDR + SIZEOF_ETHARP_HDR)
AdamGreen 0:616601bde9fb 133
AdamGreen 0:616601bde9fb 134 /* 5 seconds period */
AdamGreen 0:616601bde9fb 135 #define ARP_TMR_INTERVAL 5000
AdamGreen 0:616601bde9fb 136
AdamGreen 0:616601bde9fb 137 #define ETHTYPE_ARP 0x0806
AdamGreen 0:616601bde9fb 138 #define ETHTYPE_IP 0x0800
AdamGreen 0:616601bde9fb 139 #define ETHTYPE_VLAN 0x8100
AdamGreen 0:616601bde9fb 140 #define ETHTYPE_PPPOEDISC 0x8863 /* PPP Over Ethernet Discovery Stage */
AdamGreen 0:616601bde9fb 141 #define ETHTYPE_PPPOE 0x8864 /* PPP Over Ethernet Session Stage */
AdamGreen 0:616601bde9fb 142
AdamGreen 0:616601bde9fb 143 /* MEMCPY-like macro to copy to/from struct eth_addr's that are local variables
AdamGreen 0:616601bde9fb 144 * or known to be 32-bit aligned within the protocol header. */
AdamGreen 0:616601bde9fb 145 #ifndef ETHADDR32_COPY
AdamGreen 0:616601bde9fb 146 #define ETHADDR32_COPY(src, dst) SMEMCPY(src, dst, ETHARP_HWADDR_LEN)
AdamGreen 0:616601bde9fb 147 #endif
AdamGreen 0:616601bde9fb 148
AdamGreen 0:616601bde9fb 149 /* MEMCPY-like macro to copy to/from struct eth_addr's that are no local
AdamGreen 0:616601bde9fb 150 * variables and known to be 16-bit aligned within the protocol header. */
AdamGreen 0:616601bde9fb 151 #ifndef ETHADDR16_COPY
AdamGreen 0:616601bde9fb 152 #define ETHADDR16_COPY(src, dst) SMEMCPY(src, dst, ETHARP_HWADDR_LEN)
AdamGreen 0:616601bde9fb 153 #endif
AdamGreen 0:616601bde9fb 154
AdamGreen 0:616601bde9fb 155 #if LWIP_ARP /* don't build if not configured for use in lwipopts.h */
AdamGreen 0:616601bde9fb 156
AdamGreen 0:616601bde9fb 157 /* ARP message types (opcodes) */
AdamGreen 0:616601bde9fb 158 #define ARP_REQUEST 1
AdamGreen 0:616601bde9fb 159 #define ARP_REPLY 2
AdamGreen 0:616601bde9fb 160
AdamGreen 0:616601bde9fb 161 /* Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type)
AdamGreen 0:616601bde9fb 162 * to a filter function that returns the correct netif when using multiple
AdamGreen 0:616601bde9fb 163 * netifs on one hardware interface where the netif's low-level receive
AdamGreen 0:616601bde9fb 164 * routine cannot decide for the correct netif (e.g. when mapping multiple
AdamGreen 0:616601bde9fb 165 * IP addresses to one hardware interface).
AdamGreen 0:616601bde9fb 166 */
AdamGreen 0:616601bde9fb 167 #ifndef LWIP_ARP_FILTER_NETIF
AdamGreen 0:616601bde9fb 168 #define LWIP_ARP_FILTER_NETIF 0
AdamGreen 0:616601bde9fb 169 #endif
AdamGreen 0:616601bde9fb 170
AdamGreen 0:616601bde9fb 171 #if ARP_QUEUEING
AdamGreen 0:616601bde9fb 172 /* struct for queueing outgoing packets for unknown address
AdamGreen 0:616601bde9fb 173 * defined here to be accessed by memp.h
AdamGreen 0:616601bde9fb 174 */
AdamGreen 0:616601bde9fb 175 struct etharp_q_entry {
AdamGreen 0:616601bde9fb 176 struct etharp_q_entry *next;
AdamGreen 0:616601bde9fb 177 struct pbuf *p;
AdamGreen 0:616601bde9fb 178 };
AdamGreen 0:616601bde9fb 179 #endif /* ARP_QUEUEING */
AdamGreen 0:616601bde9fb 180
AdamGreen 0:616601bde9fb 181 #define etharp_init() /* Compatibility define, not init needed. */
AdamGreen 0:616601bde9fb 182 void etharp_tmr(void);
AdamGreen 0:616601bde9fb 183 s8_t etharp_find_addr(struct netif *netif, ip_addr_t *ipaddr,
AdamGreen 0:616601bde9fb 184 struct eth_addr **eth_ret, ip_addr_t **ip_ret);
AdamGreen 0:616601bde9fb 185 err_t etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr);
AdamGreen 0:616601bde9fb 186 err_t etharp_query(struct netif *netif, ip_addr_t *ipaddr, struct pbuf *q);
AdamGreen 0:616601bde9fb 187 err_t etharp_request(struct netif *netif, ip_addr_t *ipaddr);
AdamGreen 0:616601bde9fb 188 /* For Ethernet network interfaces, we might want to send "gratuitous ARP";
AdamGreen 0:616601bde9fb 189 * this is an ARP packet sent by a node in order to spontaneously cause other
AdamGreen 0:616601bde9fb 190 * nodes to update an entry in their ARP cache.
AdamGreen 0:616601bde9fb 191 * From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */
AdamGreen 0:616601bde9fb 192 #define etharp_gratuitous(netif) etharp_request((netif), &(netif)->ip_addr)
AdamGreen 0:616601bde9fb 193
AdamGreen 0:616601bde9fb 194 #if ETHARP_SUPPORT_STATIC_ENTRIES
AdamGreen 0:616601bde9fb 195 err_t etharp_add_static_entry(ip_addr_t *ipaddr, struct eth_addr *ethaddr);
AdamGreen 0:616601bde9fb 196 err_t etharp_remove_static_entry(ip_addr_t *ipaddr);
AdamGreen 0:616601bde9fb 197 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
AdamGreen 0:616601bde9fb 198
AdamGreen 0:616601bde9fb 199 #if LWIP_AUTOIP
AdamGreen 0:616601bde9fb 200 err_t etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
AdamGreen 0:616601bde9fb 201 const struct eth_addr *ethdst_addr,
AdamGreen 0:616601bde9fb 202 const struct eth_addr *hwsrc_addr, const ip_addr_t *ipsrc_addr,
AdamGreen 0:616601bde9fb 203 const struct eth_addr *hwdst_addr, const ip_addr_t *ipdst_addr,
AdamGreen 0:616601bde9fb 204 const u16_t opcode);
AdamGreen 0:616601bde9fb 205 #endif /* LWIP_AUTOIP */
AdamGreen 0:616601bde9fb 206
AdamGreen 0:616601bde9fb 207 #endif /* LWIP_ARP */
AdamGreen 0:616601bde9fb 208
AdamGreen 0:616601bde9fb 209 err_t ethernet_input(struct pbuf *p, struct netif *netif);
AdamGreen 0:616601bde9fb 210
AdamGreen 0:616601bde9fb 211 #define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETHARP_HWADDR_LEN) == 0)
AdamGreen 0:616601bde9fb 212
AdamGreen 0:616601bde9fb 213 extern const struct eth_addr ethbroadcast, ethzero;
AdamGreen 0:616601bde9fb 214
AdamGreen 0:616601bde9fb 215 #ifdef __cplusplus
AdamGreen 0:616601bde9fb 216 }
AdamGreen 0:616601bde9fb 217 #endif
AdamGreen 0:616601bde9fb 218
AdamGreen 0:616601bde9fb 219 #endif /* LWIP_ARP || LWIP_ETHERNET */
AdamGreen 0:616601bde9fb 220
AdamGreen 0:616601bde9fb 221 #endif /* __NETIF_ARP_H__ */