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 LWIP_HDR_NETIF_ETHERNET_H
36 #define LWIP_HDR_NETIF_ETHERNET_H
40 #include "lwip/pbuf.h"
41 #include "lwip/netif.h"
47 #ifndef ETH_HWADDR_LEN
48 #ifdef ETHARP_HWADDR_LEN
49 #define ETH_HWADDR_LEN ETHARP_HWADDR_LEN /* compatibility mode */
51 #define ETH_HWADDR_LEN 6
55 #ifdef PACK_STRUCT_USE_INCLUDES
56 # include "arch/bpstruct.h"
60 PACK_STRUCT_FLD_8(u8_t addr[ETH_HWADDR_LEN]);
63 #ifdef PACK_STRUCT_USE_INCLUDES
64 # include "arch/epstruct.h"
67 #ifdef PACK_STRUCT_USE_INCLUDES
68 # include "arch/bpstruct.h"
71 /** Ethernet header */
74 PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]);
76 PACK_STRUCT_FLD_S(struct eth_addr dest);
77 PACK_STRUCT_FLD_S(struct eth_addr src);
78 PACK_STRUCT_FIELD(u16_t type);
81 #ifdef PACK_STRUCT_USE_INCLUDES
82 # include "arch/epstruct.h"
85 #define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
87 #if ETHARP_SUPPORT_VLAN
89 #ifdef PACK_STRUCT_USE_INCLUDES
90 # include "arch/bpstruct.h"
93 /** VLAN header inserted between ethernet header and payload
94 * if 'type' in ethernet header is ETHTYPE_VLAN.
97 PACK_STRUCT_FIELD(u16_t prio_vid);
98 PACK_STRUCT_FIELD(u16_t tpid);
101 #ifdef PACK_STRUCT_USE_INCLUDES
102 # include "arch/epstruct.h"
105 #define SIZEOF_VLAN_HDR 4
106 #define VLAN_ID(vlan_hdr) (htons((vlan_hdr)->prio_vid) & 0xFFF)
108 #endif /* ETHARP_SUPPORT_VLAN */
110 /* A list of often ethtypes (although lwIP does not use all of them): */
111 #define ETHTYPE_IP 0x0800U /* Internet protocol v4 */
112 #define ETHTYPE_ARP 0x0806U /* Address resolution protocol */
113 #define ETHTYPE_WOL 0x0842U /* Wake on lan */
114 #define ETHTYPE_VLAN 0x8100U /* Virtual local area network */
115 #define ETHTYPE_IPV6 0x86DDU /* Internet protocol v6 */
116 #define ETHTYPE_PPPOEDISC 0x8863U /* PPP Over Ethernet Discovery Stage */
117 #define ETHTYPE_PPPOE 0x8864U /* PPP Over Ethernet Session Stage */
118 #define ETHTYPE_JUMBO 0x8870U /* Jumbo Frames */
119 #define ETHTYPE_PROFINET 0x8892U /* Process field network */
120 #define ETHTYPE_ETHERCAT 0x88A4U /* Ethernet for control automation technology */
121 #define ETHTYPE_LLDP 0x88CCU /* Link layer discovery protocol */
122 #define ETHTYPE_SERCOS 0x88CDU /* Serial real-time communication system */
123 #define ETHTYPE_PTP 0x88F7U /* Precision time protocol */
124 #define ETHTYPE_QINQ 0x9100U /* Q-in-Q, 802.1ad */
126 /** The 24-bit IANA IPv4-multicast OUI is 01-00-5e: */
127 #define LL_IP4_MULTICAST_ADDR_0 0x01
128 #define LL_IP4_MULTICAST_ADDR_1 0x00
129 #define LL_IP4_MULTICAST_ADDR_2 0x5e
131 /** IPv6 multicast uses this prefix */
132 #define LL_IP6_MULTICAST_ADDR_0 0x33
133 #define LL_IP6_MULTICAST_ADDR_1 0x33
135 /** MEMCPY-like macro to copy to/from struct eth_addr's that are local variables
136 * or known to be 32-bit aligned within the protocol header. */
137 #ifndef ETHADDR32_COPY
138 #define ETHADDR32_COPY(dst, src) SMEMCPY(dst, src, ETH_HWADDR_LEN)
141 /** MEMCPY-like macro to copy to/from struct eth_addr's that are no local
142 * variables and known to be 16-bit aligned within the protocol header. */
143 #ifndef ETHADDR16_COPY
144 #define ETHADDR16_COPY(dst, src) SMEMCPY(dst, src, ETH_HWADDR_LEN)
147 #if LWIP_ARP || LWIP_ETHERNET
149 /** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type)
150 * to a filter function that returns the correct netif when using multiple
151 * netifs on one hardware interface where the netif's low-level receive
152 * routine cannot decide for the correct netif (e.g. when mapping multiple
153 * IP addresses to one hardware interface).
155 #ifndef LWIP_ARP_FILTER_NETIF
156 #define LWIP_ARP_FILTER_NETIF 0
159 err_t ethernet_input(struct pbuf *p, struct netif *netif);
161 #define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0)
163 extern const struct eth_addr ethbroadcast, ethzero;
165 #endif /* LWIP_ARP || LWIP_ETHERNET */
171 #endif /* LWIP_HDR_NETIF_ETHERNET_H */