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