sys/netiso/iso.h

   1 /*      $NetBSD: iso.h,v 1.21 2007/08/30 02:17:38 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  *      @(#)iso.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_ISO_H_
  62 #define _NETISO_ISO_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 /*
  72  *      Return true if this is a multicast address
  73  *      This assumes that the bit transmission is lsb first. This
  74  *      assumption is valid for 802.3 but not 802.5. There is a
  75  *      kludge to get around this for 802.5 -- see if_lan.c
  76  *      where subnetwork header is setup.
  77  */
  78 #define IS_MULTICAST(snpa)\
  79         ((snpa)[0] & 0x01)
  80
  81 /*
  82  * Protocols
  83  */
  84 #define ISOPROTO_TCP    6       /* IETF experiment */
  85 #define ISOPROTO_UDP    17      /* IETF experiment */
  86 #define ISOPROTO_TP0    25      /* connection oriented transport protocol */
  87 #define ISOPROTO_TP1    26      /* not implemented */
  88 #define ISOPROTO_TP2    27      /* not implemented */
  89 #define ISOPROTO_TP3    28      /* not implemented */
  90 #define ISOPROTO_TP4    29      /* connection oriented transport protocol */
  91 #define ISOPROTO_TP             ISOPROTO_TP4    /* tp-4 with negotiation */
  92 #define ISOPROTO_CLTP   30      /* connectionless transport (not yet impl.) */
  93 #define ISOPROTO_CLNP   31      /* connectionless internetworking protocol */
  94 #define ISOPROTO_X25    32      /* cons */
  95 #define ISOPROTO_INACT_NL       33      /* inactive network layer! */
  96 #define ISOPROTO_ESIS   34      /* ES-IS protocol */
  97 #define ISOPROTO_INTRAISIS      35      /* IS-IS protocol */
  98 #define ISOPROTO_IDRP   36      /* Interdomain Routing Protocol */
  99
 100 #define ISOPROTO_RAW    255     /* raw clnp */
 101 #define ISOPROTO_MAX    256
 102
 103 #define ISO_PORT_RESERVED               1024
 104 #define ISO_PORT_USERRESERVED   5000
 105 /*
 106  * Port/socket numbers: standard network functions
 107  * NOT PRESENTLY USED
 108  */
 109 #define ISO_PORT_MAINT          501
 110 #define ISO_PORT_ECHO           507
 111 #define ISO_PORT_DISCARD        509
 112 #define ISO_PORT_SYSTAT         511
 113 #define ISO_PORT_NETSTAT        515
 114 /*
 115  * Port/socket numbers: non-standard application functions
 116  */
 117 #define ISO_PORT_LOGIN          513
 118 /*
 119  * Port/socket numbers: public use
 120  */
 121 #define ISO_PORT_PUBLIC         1024    /* high bit set --> public */
 122
 123 /*
 124  *      Network layer protocol identifiers
 125  */
 126 #define ISO8473_CLNP    0x81
 127 #define ISO9542_ESIS    0x82
 128 #define ISO9542X25_ESIS 0x8a
 129 #define ISO10589_ISIS           0x83
 130 #define ISO8878A_CONS           0x84
 131 #define ISO10747_IDRP           0x85
 132
 133
 134 #ifndef IN_CLASSA_NET
 135 #include <netinet/in.h>
 136 #endif                          /* IN_CLASSA_NET */
 137
 138
 139
 140 /*
 141  * The following looks like a sockaddr to facilitate using tree lookup
 142  * routines
 143  */
 144 struct iso_addr {
 145         uint8_t         isoa_len;       /* length (in bytes) */
 146         char            isoa_genaddr[20];       /* general opaque address */
 147 };
 148
 149 struct sockaddr_iso {
 150         uint8_t         siso_len;       /* length */
 151         sa_family_t     siso_family;    /* family */
 152         uint8_t         siso_plen;      /* presentation selector length */
 153         uint8_t         siso_slen;      /* session selector length */
 154         uint8_t         siso_tlen;      /* transport selector length */
 155         struct iso_addr siso_addr;      /* network address */
 156         uint8_t         siso_pad[6];    /* space for gosip v2 sels */
 157         /* makes struct 32 bytes long */
 158 };
 159 #define siso_nlen siso_addr.isoa_len
 160 #define siso_data siso_addr.isoa_genaddr
 161
 162 static inline void *
 163 WRITABLE_TSEL(struct sockaddr_iso *siso)
 164 {
 165         return &siso->siso_data[siso->siso_nlen];
 166 }
 167
 168 static inline const char *
 169 TSEL(const struct sockaddr_iso *siso)
 170 {
 171         return &siso->siso_data[siso->siso_nlen];
 172 }
 173
 174 #define SAME_ISOADDR(a, b) \
 175         (bcmp((a)->siso_data, (b)->siso_data, (unsigned)(a)->siso_nlen)==0)
 176 #define SAME_ISOIFADDR(a, b) (bcmp((a)->siso_data, (b)->siso_data, \
 177         (unsigned)((b)->siso_nlen - (b)->siso_tlen)) == 0)
 178 /*
 179  * The following are specific values for siso->siso_data[0],
 180  * otherwise known as the AFI:
 181  */
 182 #define AFI_37          0x37    /* bcd of "37" */
 183 #define AFI_OSINET      0x47    /* bcd of "47" */
 184 #define AFI_RFC986      0x47    /* bcd of "47" */
 185 #define AFI_SNA         0x00    /* SubNetwork Address; invalid really... */
 186
 187 #ifdef _KERNEL
 188
 189 #include <sys/protosw.h>
 190
 191 extern struct domain isodomain;
 192 extern const struct protosw isosw[];
 193
 194 #define satosiso(sa)    ((struct sockaddr_iso *)(sa))
 195 #define satocsiso(sa)   ((const struct sockaddr_iso *)(sa))
 196 #define sisotosa(siso)  ((struct sockaddr *)(siso))
 197
 198 int sockaddr_iso_cmp(const struct sockaddr *, const struct sockaddr *);
 199
 200 static inline int
 201 sockaddr_iso_init1(struct sockaddr_iso *siso, const struct iso_addr *addr)
 202 {
 203         memset(&siso->siso_plen, 0,
 204             sizeof(*siso) - offsetof(struct sockaddr_iso, siso_plen));
 205
 206         if (offsetof(struct iso_addr, isoa_genaddr[addr->isoa_len]) >
 207             sizeof(struct iso_addr))
 208                 return EINVAL;
 209         memcpy(&siso->siso_addr, addr,
 210             offsetof(struct iso_addr, isoa_genaddr[addr->isoa_len]));
 211         return 0;
 212 }
 213
 214 static inline int
 215 sockaddr_iso_init(struct sockaddr_iso *siso, const struct iso_addr *addr)
 216 {
 217         siso->siso_family = AF_ISO;
 218         siso->siso_len = sizeof(*siso);
 219         return sockaddr_iso_init1(siso, addr);
 220 }
 221
 222 static inline struct sockaddr *
 223 sockaddr_iso_alloc(const struct iso_addr *addr, int flags)
 224 {
 225         struct sockaddr *sa;
 226
 227         sa = sockaddr_alloc(AF_ISO, sizeof(struct sockaddr_iso), flags);
 228
 229         if (sa == NULL)
 230                 return NULL;
 231
 232         if (sockaddr_iso_init1(satosiso(sa), addr) != 0) {
 233                 sockaddr_free(sa);
 234                 return NULL;
 235         }
 236         return sa;
 237 }
 238
 239 #else
 240 /* user utilities definitions from the iso library */
 241
 242 #include <sys/cdefs.h>
 243
 244 __BEGIN_DECLS
 245 struct iso_addr *iso_addr(const char *);
 246 char           *iso_ntoa(const struct iso_addr *);
 247
 248 /* THESE DON'T EXIST YET */
 249 struct hostent *iso_gethostbyname(const char *);
 250 struct hostent *iso_gethostbyaddr(const char *, int, int);
 251 __END_DECLS
 252
 253 #endif /* _KERNEL */
 254
 255 #endif /* !_NETISO_ISO_H_ */