sys/netiso/eonvar.h

   1 /*      $NetBSD: eonvar.h,v 1.17 2007/05/02 20:40:28 dyoung Exp $       */
   2
   3 /*-
   4  * Copyright (c) 1991, 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  *      @(#)eonvar.h    8.1 (Berkeley) 6/10/93
  32  */
  33
  34 /***********************************************************
  35                 Copyright IBM Corporation 1987
  36
  37                       All Rights Reserved
  38
  39 Permission to use, copy, modify, and distribute this software and its
  40 documentation for any purpose and without fee is hereby granted,
  41 provided that the above copyright notice appear in all copies and that
  42 both that copyright notice and this permission notice appear in
  43 supporting documentation, and that the name of IBM not be
  44 used in advertising or publicity pertaining to distribution of the
  45 software without specific, written prior permission.
  46
  47 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  48 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  49 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  50 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  51 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  52 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  53 SOFTWARE.
  54
  55 ******************************************************************/
  56
  57 /*
  58  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
  59  */
  60
  61 #ifndef _NETISO_EONVAR_H_
  62 #define _NETISO_EONVAR_H_
  63
  64 #include <sys/ansi.h>
  65
  66 #ifndef sa_family_t
  67 typedef __sa_family_t   sa_family_t;
  68 #define sa_family_t     __sa_family_t
  69 #endif
  70
  71 #define EON_986_VERSION 0x3
  72 #define EON_VERSION 0x1
  73
  74 #define EON_CACHESIZE 30
  75
  76 #define E_FREE  1
  77 #define E_LINK  2
  78 #define E_ES    3
  79 #define E_IS    4
  80
  81
  82 /*
  83  * this overlays a sockaddr_iso
  84  */
  85
  86 struct sockaddr_eon {
  87         u_char          seon_len;       /* Length */
  88         sa_family_t     seon_family;    /* AF_ISO */
  89         u_char          seon_status;    /* overlays session suffixlen */
  90 #define EON_ESLINK_UP           0x1
  91 #define EON_ESLINK_DOWN         0x2
  92 #define EON_ISLINK_UP           0x10
  93 #define EON_ISLINK_DOWN         0x20
  94         /* no change is neither up or down */
  95         u_char          seon_pad1;      /* 0, overlays tsfxlen */
  96         u_char          seon_adrlen;
  97         u_char          seon_afi;       /* 47 */
  98         u_char          seon_idi[2];    /* 0006 */
  99         u_char          seon_vers;      /* 03 */
 100         u_char          seon_glbnum[2]; /* see RFC 1069 */
 101         u_char          seon_RDN[2];    /* see RFC 1070 */
 102         u_char          seon_pad2[3];   /* see RFC 1070 */
 103         u_char          seon_LAREA[2];  /* see RFC 1070 */
 104         u_char          seon_pad3[2];   /* see RFC 1070 */
 105         /*
 106          * right now ip addr is  aligned  -- be careful -- future revisions
 107          * may have it u_char[4]
 108          */
 109         u_int           seon_ipaddr;    /* a.b.c.d */
 110         u_char          seon_protoid;   /* NSEL */
 111 };
 112
 113 #ifdef EON_TEMPLATE
 114 struct sockaddr_eon eon_template = {
 115         sizeof(eon_template), AF_ISO, 0, 0, 0x14,
 116         0x47, 0x0, 0x6, 0x3, 0
 117 };
 118 #endif
 119
 120 #define DOWNBITS ( EON_ESLINK_DOWN | EON_ISLINK_DOWN )
 121 #define UPBITS ( EON_ESLINK_UP | EON_ISLINK_UP )
 122
 123 struct eon_hdr {
 124         u_char          eonh_vers;      /* value 1 */
 125         u_char          eonh_class;     /* address multicast class, below */
 126 #define         EON_NORMAL_ADDR         0x0
 127 #define         EON_MULTICAST_ES        0x1
 128 #define         EON_MULTICAST_IS        0x2
 129 #define         EON_BROADCAST           0x3
 130         u_short         eonh_csum;      /* osi checksum (choke) */
 131 };
 132 struct eon_iphdr {
 133         struct ip       ei_ip;
 134         struct eon_hdr  ei_eh;
 135 };
 136 #define EONIPLEN (sizeof(struct eon_hdr) + sizeof(struct ip))
 137
 138 /* stole these 2 fields of the flags for I-am-ES and I-am-IS */
 139 #define IFF_ES  0x400
 140 #define IFF_IS  0x800
 141
 142 struct eon_stat {
 143         int             es_in_multi_es;
 144         int             es_in_multi_is;
 145         int             es_in_broad;
 146         int             es_in_normal;
 147         int             es_out_multi_es;
 148         int             es_out_multi_is;
 149         int             es_out_broad;
 150         int             es_out_normal;
 151         int             es_ipout;
 152
 153         int             es_icmp[PRC_NCMDS];
 154         /* errors */
 155         int             es_badcsum;
 156         int             es_badhdr;
 157 }               eonstat;
 158
 159 #undef IncStat
 160 #define IncStat(xxx) eonstat.xxx++
 161
 162 typedef struct qhdr {
 163         struct qhdr    *link, *rlink;
 164 }              *queue_t;
 165
 166 struct eon_llinfo {
 167         struct qhdr     el_qhdr;/* keep all in a list */
 168         int             el_flags;       /* cache valid ? */
 169         int             el_snpaoffset;  /* IP address contained in dst nsap */
 170         struct rtentry *el_rt;  /* back pointer to parent route */
 171         struct eon_iphdr el_ei; /* precomputed portion of hdr */
 172         struct route    el_iproute;     /* if direct route cache IP info */
 173         /* if gateway, cache secondary route */
 174 };
 175 #define el_iphdr el_ei.ei_ip
 176 #define el_eonhdr el_ei.ei_eh
 177
 178 #ifdef _KERNEL
 179 void eonprotoinit (void);
 180 void eonattach   (void);
 181 int eonioctl    (struct ifnet *, u_long, void *);
 182 void eoniphdr(struct eon_iphdr *, const void *, struct route *, int);
 183 void eonrtrequest (int, struct rtentry *, const struct rt_addrinfo *);
 184 int eonoutput(struct ifnet *, struct mbuf *, const struct sockaddr *,
 185                      struct rtentry *);
 186 void eoninput    (struct mbuf *, ...);
 187 void *eonctlinput(int, const struct sockaddr *, void *);
 188 #endif
 189
 190 #endif /* !_NETISO_EONVAR_H_ */