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/net/if_arc.h

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    1 /*      $NetBSD: if_arc.h,v 1.23 2017/10/23 09:22:24 msaitoh 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  * from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp
   32  *       @(#)if_ether.h 8.1 (Berkeley) 6/10/93
   33  */
   34 
   35 #ifndef _NET_IF_ARC_H_
   36 #define _NET_IF_ARC_H_
   37 
   38 /*
   39  * Arcnet address - 1 octets
   40  * don't know who uses this.
   41  */
   42 struct arc_addr {
   43         uint8_t  arc_addr_octet[1];
   44 } __packed;
   45 
   46 /*
   47  * Structure of a 2.5MB/s Arcnet header.
   48  * as given to interface code.
   49  */
   50 struct  arc_header {
   51         uint8_t  arc_shost;
   52         uint8_t  arc_dhost;
   53         uint8_t  arc_type;
   54         /*
   55          * only present for newstyle encoding with LL fragmentation.
   56          * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead.
   57          */
   58         uint8_t  arc_flag;
   59         uint16_t arc_seqid;
   60 
   61         /*
   62          * only present in exception packets (arc_flag == 0xff)
   63          */
   64         uint8_t  arc_type2;     /* same as arc_type */
   65         uint8_t  arc_flag2;     /* real flag value */
   66         uint16_t arc_seqid2;    /* real seqid value */
   67 } __packed;
   68 
   69 #define ARC_ADDR_LEN            1
   70 
   71 #define ARC_HDRLEN              3
   72 #define ARC_HDRNEWLEN           6
   73 #define ARC_HDRNEWLEN_EXC       10
   74 
   75 /* these lengths are data link layer length - 2*ARC_ADDR_LEN */
   76 #define ARC_MIN_LEN             1
   77 #define ARC_MIN_FORBID_LEN      254
   78 #define ARC_MAX_FORBID_LEN      256
   79 #define ARC_MAX_LEN             508
   80 
   81 
   82 /* RFC 1051 */
   83 #define ARCTYPE_IP_OLD          240     /* IP protocol */
   84 #define ARCTYPE_ARP_OLD         241     /* address resolution protocol */
   85 
   86 /* RFC 1201 */
   87 #define ARCTYPE_IP              212     /* IP protocol */
   88 #define ARCTYPE_ARP             213     /* address resolution protocol */
   89 #define ARCTYPE_REVARP          214     /* reverse addr resolution protocol */
   90 
   91 #define ARCTYPE_ATALK           221     /* Appletalk */
   92 #define ARCTYPE_BANIAN          247     /* Banyan Vines */
   93 #define ARCTYPE_IPX             250     /* Novell IPX */
   94 
   95 #define ARCTYPE_INET6           0xc4    /* IPng */
   96 #define ARCTYPE_DIAGNOSE        0x80    /* as per ANSI/ATA 878.1 */
   97 
   98 #define ARCMTU                  507
   99 #define ARCMIN                  0
  100 
  101 #define ARC_PHDS_MAXMTU         60480
  102 
  103 struct  arccom {
  104         struct    ifnet ac_if;          /* network-visible interface */
  105 
  106         uint16_t ac_seqid;              /* seq. id used by PHDS encap. */
  107 
  108         struct ac_frag {
  109                 uint8_t  af_maxflag;    /* from first packet */
  110                 uint8_t  af_lastseen;   /* last split flag seen */
  111                 uint16_t af_seqid;
  112                 struct mbuf *af_packet;
  113         } ac_fragtab[256];              /* indexed by sender ll address */
  114 
  115 };
  116 
  117 #ifdef _KERNEL
  118 extern uint8_t arcbroadcastaddr;
  119 extern int arc_ipmtu;   /* XXX new ip only, no RFC 1051! */
  120 
  121 int     arc_ifattach(struct ifnet *, uint8_t);
  122 char    *arc_sprintf(uint8_t *);
  123 int     arc_isphds(uint8_t);
  124 #endif
  125 
  126 #endif /* !_NET_IF_ARC_H_ */

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