The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netinet/if_ether.h

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    1 /*      $NetBSD: if_ether.h,v 1.33 2006/09/25 12:24:47 sketch Exp $     */
    2 
    3 /*
    4  * Copyright (c) 1982, 1986, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      @(#)if_ether.h  8.3 (Berkeley) 5/2/95
   32  */
   33 
   34 #ifndef _NETINET_IF_ETHER_H_
   35 #define _NETINET_IF_ETHER_H_
   36 
   37 
   38 #ifdef _KERNEL
   39 #error You should NOT be doing this.
   40 /*
   41  * XXX This file is for compatibility to externally maintained packages
   42  * ONLY, or to help porting them if the other way round is not possible.
   43  * Kernel drivers should be properly ported.
   44  */
   45 #endif
   46 
   47 
   48 #ifndef _netinet_if_ether_compat_h_
   49 #define _netinet_if_ether_compat_h_
   50 
   51 /* pull in Ethernet-specific definitions and packet structures */
   52 
   53 #include <net/if_ether.h>
   54 
   55 /* pull in ARP-specific definitions and packet structures */
   56 
   57 #include <net/if_arp.h>
   58 
   59 /* pull in ARP-over-Ethernet-specific definitions and packet structures */
   60 #include <netinet/if_inarp.h>
   61 
   62 /* ... and define some more which we don't need anymore: */
   63 
   64 /*
   65  * Ethernet Address Resolution Protocol.
   66  *
   67  * See RFC 826 for protocol description.  Structure below is not
   68  * used by our kernel!!! Only for userland programs which are externally
   69  * maintained and need it.
   70  */
   71 
   72 struct  ether_arp {
   73         struct   arphdr ea_hdr;                 /* fixed-size header */
   74         u_int8_t arp_sha[ETHER_ADDR_LEN];       /* sender hardware address */
   75         u_int8_t arp_spa[4];                    /* sender protocol address */
   76         u_int8_t arp_tha[ETHER_ADDR_LEN];       /* target hardware address */
   77         u_int8_t arp_tpa[4];                    /* target protocol address */
   78 } __attribute__((__packed__));
   79 #define arp_hrd ea_hdr.ar_hrd
   80 #define arp_pro ea_hdr.ar_pro
   81 #define arp_hln ea_hdr.ar_hln
   82 #define arp_pln ea_hdr.ar_pln
   83 #define arp_op  ea_hdr.ar_op
   84 
   85 #endif /* _netinet_if_ether_compat_h_ */
   86 
   87 #endif /* !_NETINET_IF_ETHER_H_ */

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