sys/netproto/atalk/at.h

   1 /*
   2  * Copyright (c) 1990,1991 Regents of The University of Michigan.
   3  * All Rights Reserved.
   4  *
   5  * Permission to use, copy, modify, and distribute this software and
   6  * its documentation for any purpose and without fee is hereby granted,
   7  * provided that the above copyright notice appears in all copies and
   8  * that both that copyright notice and this permission notice appear
   9  * in supporting documentation, and that the name of The University
  10  * of Michigan not be used in advertising or publicity pertaining to
  11  * distribution of the software without specific, written prior
  12  * permission. This software is supplied as is without expressed or
  13  * implied warranties of any kind.
  14  *
  15  *      Research Systems Unix Group
  16  *      The University of Michigan
  17  *      c/o Mike Clark
  18  *      535 W. William Street
  19  *      Ann Arbor, Michigan
  20  *      +1-313-763-0525
  21  *      netatalk@itd.umich.edu
  22  *
  23  * $FreeBSD: src/sys/netatalk/at.h,v 1.5.6.1 2002/12/01 14:03:09 sobomax Exp $
  24  * $DragonFly: src/sys/netproto/atalk/at.h,v 1.2 2003/06/17 04:28:48 dillon Exp $
  25  */
  26
  27 #ifndef __AT_HEADER__
  28 #define __AT_HEADER__
  29 /*
  30  * Supported protocols
  31  */
  32 #define ATPROTO_DDP     0
  33 #define ATPROTO_AARP    254
  34
  35 #define DDP_MAXSZ       587
  36
  37 /*
  38  * If ATPORT_FIRST <= Port < ATPORT_RESERVED,
  39  * Port was created by a privileged process.
  40  * If ATPORT_RESERVED <= Port < ATPORT_LAST,
  41  * Port was not necessarily created by a
  42  * privileged process.
  43  */
  44 #define ATPORT_FIRST    1
  45 #define ATPORT_RESERVED 128
  46 #define ATPORT_LAST     255
  47
  48 /*
  49  * AppleTalk address.
  50  */
  51 struct at_addr {
  52     u_short     s_net;
  53     u_char      s_node;
  54 };
  55
  56 #define ATADDR_ANYNET   (u_short)0x0000
  57 #define ATADDR_ANYNODE  (u_char)0x00
  58 #define ATADDR_ANYPORT  (u_char)0x00
  59 #define ATADDR_BCAST    (u_char)0xff            /* There is no BCAST for NET */
  60
  61 struct netrange {
  62     u_char              nr_phase;
  63     u_short             nr_firstnet;
  64     u_short             nr_lastnet;
  65 };
  66
  67 /*
  68  * Socket address, AppleTalk style.  We keep magic information in the
  69  * zero bytes.  There are three types, NONE, CONFIG which has the phase
  70  * and a net range, and IFACE which has the network address of an
  71  * interface.  IFACE may be filled in by the client, and is filled in
  72  * by the kernel.
  73  */
  74 struct sockaddr_at {
  75     u_char              sat_len;
  76     u_char              sat_family;
  77     u_char              sat_port;
  78     struct at_addr      sat_addr;
  79     union {
  80         struct netrange r_netrange;
  81         char            r_zero[ 8 ];    /* Hide a struct netrange in here */
  82     } sat_range;
  83 };
  84
  85 #define sat_zero sat_range.r_zero
  86
  87 #endif /* !__AT_HEADER__ */