1 /** 2 * @file 3 * Ethernet input function - handles INCOMING ethernet level traffic 4 * To be used in most low-level netif implementations 5 */ 6 7 /* 8 * Copyright (c) 2001-2003 Swedish Institute of Computer Science. 9 * Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv> 10 * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. 11 * All rights reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without modification, 14 * are permitted provided that the following conditions are met: 15 * 16 * 1. Redistributions of source code must retain the above copyright notice, 17 * this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright notice, 19 * this list of conditions and the following disclaimer in the documentation 20 * and/or other materials provided with the distribution. 21 * 3. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 27 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 28 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 29 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 33 * OF SUCH DAMAGE. 34 * 35 * This file is part of the lwIP TCP/IP stack. 36 * 37 * Author: Adam Dunkels <adam@sics.se> 38 * 39 */ 40 41 #ifndef LWIP_HDR_NETIF_ETHERNET_H 42 #define LWIP_HDR_NETIF_ETHERNET_H 43 44 #include "lwip/opt.h" 45 46 #include "lwip/pbuf.h" 47 #include "lwip/netif.h" 48 #include "lwip/prot/ethernet.h" 49 50 #ifdef __cplusplus 51 extern "C" { 52 #endif 53 54 #if LWIP_ARP || LWIP_ETHERNET 55 56 /** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type) 57 * to a filter function that returns the correct netif when using multiple 58 * netifs on one hardware interface where the netif's low-level receive 59 * routine cannot decide for the correct netif (e.g. when mapping multiple 60 * IP addresses to one hardware interface). 61 */ 62 #ifndef LWIP_ARP_FILTER_NETIF 63 #define LWIP_ARP_FILTER_NETIF 0 64 #endif 65 66 err_t ethernet_input(struct pbuf *p, struct netif *netif); 67 err_t ethernet_output(struct netif* netif, struct pbuf* p, const struct eth_addr* src, const struct eth_addr* dst, u16_t eth_type); 68 69 extern const struct eth_addr ethbroadcast, ethzero; 70 71 #endif /* LWIP_ARP || LWIP_ETHERNET */ 72 73 #ifdef __cplusplus 74 } 75 #endif 76 77 #endif /* LWIP_HDR_NETIF_ETHERNET_H */ 78