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3846 | mejdrech | 1 | /* |
3912 | mejdrech | 2 | * Copyright (c) 2009 Lukas Mejdrech |
3846 | mejdrech | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup arp |
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30 | * @{ |
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31 | */ |
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32 | |||
33 | /** @file |
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3912 | mejdrech | 34 | * ARP protocol header. |
4728 | mejdrech | 35 | * Based on the RFC~826. |
3846 | mejdrech | 36 | */ |
37 | |||
38 | #ifndef __NET_ARP_HEADER_H__ |
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39 | #define __NET_ARP_HEADER_H__ |
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40 | |||
41 | #include <sys/types.h> |
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42 | |||
3912 | mejdrech | 43 | /** Type definition of an ARP protocol header. |
44 | * @see arp_header |
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45 | */ |
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3846 | mejdrech | 46 | typedef struct arp_header arp_header_t; |
3912 | mejdrech | 47 | |
48 | /** Type definition of an ARP protocol header pointer. |
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49 | * @see arp_header |
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50 | */ |
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3846 | mejdrech | 51 | typedef arp_header_t * arp_header_ref; |
52 | |||
3912 | mejdrech | 53 | /** ARP protocol header. |
54 | */ |
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3846 | mejdrech | 55 | struct arp_header{ |
3912 | mejdrech | 56 | /** Hardware type identifier. |
57 | * @see hardware.h |
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58 | */ |
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3846 | mejdrech | 59 | uint16_t hardware; |
3912 | mejdrech | 60 | /** Protocol identifier. |
61 | */ |
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3846 | mejdrech | 62 | uint16_t protocol; |
3912 | mejdrech | 63 | /** Hardware address length in bytes. |
64 | */ |
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3846 | mejdrech | 65 | uint8_t hardware_length; |
3912 | mejdrech | 66 | /** Protocol address length in bytes. |
67 | */ |
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3846 | mejdrech | 68 | uint8_t protocol_length; |
3912 | mejdrech | 69 | /** ARP packet type. |
70 | * @see arp_oc.h |
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71 | */ |
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3846 | mejdrech | 72 | uint16_t operation; |
4243 | mejdrech | 73 | } __attribute__ ((packed)); |
3846 | mejdrech | 74 | |
75 | #endif |
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76 | |||
77 | /** @} |
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78 | */ |