minix/lib/liblwip/dist/src/include/netif/ethernet.h

   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 */