/* * Copyright (c) 2001-2003 Swedish Institute of Computer Science. * Copyright (c) 2003-2004 Leon Woestenberg * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. * 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 * */ #ifndef LWIP_HDR_NETIF_ETHERNET_H #define LWIP_HDR_NETIF_ETHERNET_H #include "lwip/opt.h" #include "lwip/pbuf.h" #include "lwip/netif.h" #ifdef __cplusplus extern "C" { #endif #ifndef ETH_HWADDR_LEN #ifdef ETHARP_HWADDR_LEN #define ETH_HWADDR_LEN ETHARP_HWADDR_LEN /* compatibility mode */ #else #define ETH_HWADDR_LEN 6 #endif #endif #ifdef PACK_STRUCT_USE_INCLUDES # include "arch/bpstruct.h" #endif PACK_STRUCT_BEGIN struct eth_addr { PACK_STRUCT_FLD_8(u8_t addr[ETH_HWADDR_LEN]); } PACK_STRUCT_STRUCT; PACK_STRUCT_END #ifdef PACK_STRUCT_USE_INCLUDES # include "arch/epstruct.h" #endif #ifdef PACK_STRUCT_USE_INCLUDES # include "arch/bpstruct.h" #endif PACK_STRUCT_BEGIN /** Ethernet header */ struct eth_hdr { #if ETH_PAD_SIZE PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]); #endif PACK_STRUCT_FLD_S(struct eth_addr dest); PACK_STRUCT_FLD_S(struct eth_addr src); PACK_STRUCT_FIELD(u16_t type); } PACK_STRUCT_STRUCT; PACK_STRUCT_END #ifdef PACK_STRUCT_USE_INCLUDES # include "arch/epstruct.h" #endif #define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE) #if ETHARP_SUPPORT_VLAN #ifdef PACK_STRUCT_USE_INCLUDES # include "arch/bpstruct.h" #endif PACK_STRUCT_BEGIN /** VLAN header inserted between ethernet header and payload * if 'type' in ethernet header is ETHTYPE_VLAN. * See IEEE802.Q */ struct eth_vlan_hdr { PACK_STRUCT_FIELD(u16_t prio_vid); PACK_STRUCT_FIELD(u16_t tpid); } PACK_STRUCT_STRUCT; PACK_STRUCT_END #ifdef PACK_STRUCT_USE_INCLUDES # include "arch/epstruct.h" #endif #define SIZEOF_VLAN_HDR 4 #define VLAN_ID(vlan_hdr) (htons((vlan_hdr)->prio_vid) & 0xFFF) #endif /* ETHARP_SUPPORT_VLAN */ /* A list of often ethtypes (although lwIP does not use all of them): */ #define ETHTYPE_IP 0x0800U /* Internet protocol v4 */ #define ETHTYPE_ARP 0x0806U /* Address resolution protocol */ #define ETHTYPE_WOL 0x0842U /* Wake on lan */ #define ETHTYPE_VLAN 0x8100U /* Virtual local area network */ #define ETHTYPE_IPV6 0x86DDU /* Internet protocol v6 */ #define ETHTYPE_PPPOEDISC 0x8863U /* PPP Over Ethernet Discovery Stage */ #define ETHTYPE_PPPOE 0x8864U /* PPP Over Ethernet Session Stage */ #define ETHTYPE_JUMBO 0x8870U /* Jumbo Frames */ #define ETHTYPE_PROFINET 0x8892U /* Process field network */ #define ETHTYPE_ETHERCAT 0x88A4U /* Ethernet for control automation technology */ #define ETHTYPE_LLDP 0x88CCU /* Link layer discovery protocol */ #define ETHTYPE_SERCOS 0x88CDU /* Serial real-time communication system */ #define ETHTYPE_PTP 0x88F7U /* Precision time protocol */ #define ETHTYPE_QINQ 0x9100U /* Q-in-Q, 802.1ad */ /** The 24-bit IANA IPv4-multicast OUI is 01-00-5e: */ #define LL_IP4_MULTICAST_ADDR_0 0x01 #define LL_IP4_MULTICAST_ADDR_1 0x00 #define LL_IP4_MULTICAST_ADDR_2 0x5e /** IPv6 multicast uses this prefix */ #define LL_IP6_MULTICAST_ADDR_0 0x33 #define LL_IP6_MULTICAST_ADDR_1 0x33 /** MEMCPY-like macro to copy to/from struct eth_addr's that are local variables * or known to be 32-bit aligned within the protocol header. */ #ifndef ETHADDR32_COPY #define ETHADDR32_COPY(dst, src) SMEMCPY(dst, src, ETH_HWADDR_LEN) #endif /** MEMCPY-like macro to copy to/from struct eth_addr's that are no local * variables and known to be 16-bit aligned within the protocol header. */ #ifndef ETHADDR16_COPY #define ETHADDR16_COPY(dst, src) SMEMCPY(dst, src, ETH_HWADDR_LEN) #endif #if LWIP_ARP || LWIP_ETHERNET /** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type) * to a filter function that returns the correct netif when using multiple * netifs on one hardware interface where the netif's low-level receive * routine cannot decide for the correct netif (e.g. when mapping multiple * IP addresses to one hardware interface). */ #ifndef LWIP_ARP_FILTER_NETIF #define LWIP_ARP_FILTER_NETIF 0 #endif err_t ethernet_input(struct pbuf *p, struct netif *netif); #define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0) extern const struct eth_addr ethbroadcast, ethzero; #endif /* LWIP_ARP || LWIP_ETHERNET */ #ifdef __cplusplus } #endif #endif /* LWIP_HDR_NETIF_ETHERNET_H */