bsd/netiso/eonvar.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*-
  23  * Copyright (c) 1991, 1993
  24  *      The Regents of the University of California.  All rights reserved.
  25  *
  26  * Redistribution and use in source and binary forms, with or without
  27  * modification, are permitted provided that the following conditions
  28  * are met:
  29  * 1. Redistributions of source code must retain the above copyright
  30  *    notice, this list of conditions and the following disclaimer.
  31  * 2. Redistributions in binary form must reproduce the above copyright
  32  *    notice, this list of conditions and the following disclaimer in the
  33  *    documentation and/or other materials provided with the distribution.
  34  * 3. All advertising materials mentioning features or use of this software
  35  *    must display the following acknowledgement:
  36  *      This product includes software developed by the University of
  37  *      California, Berkeley and its contributors.
  38  * 4. Neither the name of the University nor the names of its contributors
  39  *    may be used to endorse or promote products derived from this software
  40  *    without specific prior written permission.
  41  *
  42  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  43  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  44  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  45  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  46  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  47  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  48  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  50  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  51  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  52  * SUCH DAMAGE.
  53  *
  54  *      @(#)eonvar.h    8.1 (Berkeley) 6/10/93
  55  */
  56
  57 /***********************************************************
  58                 Copyright IBM Corporation 1987
  59
  60                       All Rights Reserved
  61
  62 Permission to use, copy, modify, and distribute this software and its
  63 documentation for any purpose and without fee is hereby granted,
  64 provided that the above copyright notice appear in all copies and that
  65 both that copyright notice and this permission notice appear in
  66 supporting documentation, and that the name of IBM not be
  67 used in advertising or publicity pertaining to distribution of the
  68 software without specific, written prior permission.
  69
  70 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  71 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  72 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  73 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  74 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  75 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  76 SOFTWARE.
  77
  78 ******************************************************************/
  79
  80 /*
  81  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
  82  */
  83
  84 #define EON_986_VERSION 0x3
  85 #define EON_VERSION 0x1
  86
  87 #define EON_CACHESIZE 30
  88
  89 #define E_FREE  1
  90 #define E_LINK  2
  91 #define E_ES    3
  92 #define E_IS    4
  93
  94
  95 /*
  96  * this overlays a sockaddr_iso
  97  */
  98
  99 struct sockaddr_eon {
 100         u_char                  seon_len;       /* Length */
 101         u_char                  seon_family;    /* AF_ISO */
 102         u_char                  seon_status;    /* overlays session suffixlen */
 103 #define EON_ESLINK_UP           0x1
 104 #define EON_ESLINK_DOWN         0x2
 105 #define EON_ISLINK_UP           0x10
 106 #define EON_ISLINK_DOWN         0x20
 107 /* no change is neither up or down */
 108         u_char                  seon_pad1;      /* 0, overlays tsfxlen */
 109         u_char                  seon_adrlen;
 110         u_char                  seon_afi;               /* 47 */
 111         u_char                  seon_idi[2];    /* 0006 */
 112         u_char                  seon_vers;              /* 03 */
 113         u_char                  seon_glbnum[2]; /* see RFC 1069 */
 114         u_char                  seon_RDN[2];    /* see RFC 1070 */
 115         u_char                  seon_pad2[3];   /* see RFC 1070 */
 116         u_char                  seon_LAREA[2];  /* see RFC 1070 */
 117         u_char                  seon_pad3[2];   /* see RFC 1070 */
 118                 /* right now ip addr is  aligned  -- be careful --
 119                  * future revisions may have it u_char[4]
 120                  */
 121         u_int                   seon_ipaddr;    /* a.b.c.d */
 122         u_char                  seon_protoid;   /* NSEL */
 123 };
 124
 125 #ifdef EON_TEMPLATE
 126 struct sockaddr_eon eon_template = {
 127         sizeof (eon_template), AF_ISO, 0, 0, 0x14,
 128         0x47, 0x0, 0x6, 0x3, 0
 129 };
 130 #endif
 131
 132 #define DOWNBITS ( EON_ESLINK_DOWN | EON_ISLINK_DOWN )
 133 #define UPBITS ( EON_ESLINK_UP | EON_ISLINK_UP )
 134
 135 #define SIOCSEONCORE _IOWR('i',10, struct iso_ifreq) /* EON core member */
 136 #define SIOCGEONCORE _IOWR('i',11, struct iso_ifreq) /* EON core member */
 137
 138 struct eon_hdr {
 139         u_char  eonh_vers; /* value 1 */
 140         u_char  eonh_class;  /* address multicast class, below */
 141 #define         EON_NORMAL_ADDR         0x0
 142 #define         EON_MULTICAST_ES        0x1
 143 #define         EON_MULTICAST_IS        0x2
 144 #define         EON_BROADCAST           0x3
 145         u_short eonh_csum;  /* osi checksum (choke)*/
 146 };
 147 struct eon_iphdr {
 148         struct  ip      ei_ip;
 149         struct  eon_hdr ei_eh;
 150 };
 151 #define EONIPLEN (sizeof(struct eon_hdr) + sizeof(struct ip))
 152
 153 /* stole these 2 fields of the flags for I-am-ES and I-am-IS */
 154 #define IFF_ES  0x400
 155 #define IFF_IS  0x800
 156
 157 struct eon_stat {
 158         int     es_in_multi_es;
 159         int     es_in_multi_is;
 160         int     es_in_broad;
 161         int     es_in_normal;
 162         int     es_out_multi_es;
 163         int     es_out_multi_is;
 164         int     es_out_broad;
 165         int     es_out_normal;
 166         int     es_ipout;
 167
 168         int     es_icmp[PRC_NCMDS];
 169         /* errors */
 170         int     es_badcsum;
 171         int     es_badhdr;
 172 } eonstat;
 173
 174 #undef IncStat
 175 #define IncStat(xxx) eonstat.xxx++
 176
 177 typedef struct qhdr {
 178         struct qhdr *link, *rlink;
 179 } *queue_t;
 180
 181 struct eon_llinfo {
 182         struct  qhdr el_qhdr;           /* keep all in a list */
 183         int     el_flags;               /* cache valid ? */
 184         int     el_snpaoffset;          /* IP address contained in dst nsap */
 185         struct  rtentry *el_rt;         /* back pointer to parent route */
 186         struct  eon_iphdr el_ei;        /* precomputed portion of hdr */
 187         struct  route el_iproute;       /* if direct route cache IP info */
 188                                         /* if gateway, cache secondary route */
 189 };
 190 #define el_iphdr el_ei.ei_ip
 191 #define el_eonhdr el_ei.ei_eh