FreeBSD/Linux Kernel Cross Reference
sys/netiso/iso.h

     /*      $NetBSD: iso.h,v 1.22 2007/11/21 16:49:08 is Exp $      */
     
     /*-
      * Copyright (c) 1991, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)iso.h       8.1 (Berkeley) 6/10/93
     */
    
    /***********************************************************
                    Copyright IBM Corporation 1987
    
                          All Rights Reserved
    
    Permission to use, copy, modify, and distribute this software and its
    documentation for any purpose and without fee is hereby granted,
    provided that the above copyright notice appear in all copies and that
    both that copyright notice and this permission notice appear in
    supporting documentation, and that the name of IBM not be
    used in advertising or publicity pertaining to distribution of the
    software without specific, written prior permission.
    
    IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
    ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
    IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
    ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
    WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
    ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
    SOFTWARE.
    
    ******************************************************************/
    
    /*
     * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
     */
    
    #ifndef _NETISO_ISO_H_
    #define _NETISO_ISO_H_
    
    #include <sys/ansi.h>
    
    #ifndef sa_family_t
    typedef __sa_family_t   sa_family_t;
    #define sa_family_t     __sa_family_t
    #endif
    
    /*
     *      Return true if this is a multicast address
     *      This assumes that the bit transmission is lsb first. This
     *      assumption is valid for 802.3 but not 802.5. There is a
     *      kludge to get around this for 802.5 -- see if_lan.c
     *      where subnetwork header is setup.
     */
    #define IS_MULTICAST(snpa)\
            ((snpa)[0] & 0x01)
    
    /*
     * Protocols
     */
    #define ISOPROTO_TCP    6       /* IETF experiment */
    #define ISOPROTO_UDP    17      /* IETF experiment */
    #define ISOPROTO_TP0    25      /* connection oriented transport protocol */
    #define ISOPROTO_TP1    26      /* not implemented */
    #define ISOPROTO_TP2    27      /* not implemented */
    #define ISOPROTO_TP3    28      /* not implemented */
    #define ISOPROTO_TP4    29      /* connection oriented transport protocol */
    #define ISOPROTO_TP             ISOPROTO_TP4    /* tp-4 with negotiation */
    #define ISOPROTO_CLTP   30      /* connectionless transport (not yet impl.) */
    #define ISOPROTO_CLNP   31      /* connectionless internetworking protocol */
    #define ISOPROTO_X25    32      /* cons */
    #define ISOPROTO_INACT_NL       33      /* inactive network layer! */
    #define ISOPROTO_ESIS   34      /* ES-IS protocol */
    #define ISOPROTO_INTRAISIS      35      /* IS-IS protocol */
    #define ISOPROTO_IDRP   36      /* Interdomain Routing Protocol */
    
   #define ISOPROTO_RAW    255     /* raw clnp */
   #define ISOPROTO_MAX    256
   
   #define ISO_PORT_RESERVED               1024
   #define ISO_PORT_USERRESERVED   5000
   /*
    * Port/socket numbers: standard network functions
    * NOT PRESENTLY USED
    */
   #define ISO_PORT_MAINT          501
   #define ISO_PORT_ECHO           507
   #define ISO_PORT_DISCARD        509
   #define ISO_PORT_SYSTAT         511
   #define ISO_PORT_NETSTAT        515
   /*
    * Port/socket numbers: non-standard application functions
    */
   #define ISO_PORT_LOGIN          513
   /*
    * Port/socket numbers: public use
    */
   #define ISO_PORT_PUBLIC         1024    /* high bit set --> public */
   
   /*
    *      Network layer protocol identifiers
    */
   #define ISO8473_CLNP    0x81
   #define ISO9542_ESIS    0x82
   #define ISO9542X25_ESIS 0x8a
   #define ISO10589_ISIS           0x83
   #define ISO8878A_CONS           0x84
   #define ISO10747_IDRP           0x85
   
   
   #ifndef IN_CLASSA_NET
   #include <netinet/in.h>
   #endif                          /* IN_CLASSA_NET */
   
   
   
   /*
    * The following looks like a sockaddr to facilitate using tree lookup
    * routines
    */
   struct iso_addr {
           uint8_t         isoa_len;       /* length (in bytes) */
           char            isoa_genaddr[20];       /* general opaque address */
   };
   
   struct sockaddr_iso {
           uint8_t         siso_len;       /* length */
           sa_family_t     siso_family;    /* family */
           uint8_t         siso_plen;      /* presentation selector length */
           uint8_t         siso_slen;      /* session selector length */
           uint8_t         siso_tlen;      /* transport selector length */
           struct iso_addr siso_addr;      /* network address */
           uint8_t         siso_pad[6];    /* space for gosip v2 sels */
           /* makes struct 32 bytes long */
   };
   #define siso_nlen siso_addr.isoa_len
   #define siso_data siso_addr.isoa_genaddr
   
   static inline void *
   WRITABLE_TSEL(struct sockaddr_iso *siso)
   {
           return &siso->siso_data[siso->siso_nlen];
   }
   
   static inline const char *
   TSEL(const struct sockaddr_iso *siso)
   {
           return &siso->siso_data[siso->siso_nlen];
   }
   
   #define SAME_ISOADDR(a, b) \
           (bcmp((a)->siso_data, (b)->siso_data, (unsigned)(a)->siso_nlen)==0)
   #define SAME_ISOIFADDR(a, b) (bcmp((a)->siso_data, (b)->siso_data, \
           (unsigned)((b)->siso_nlen - (b)->siso_tlen)) == 0)
   /*
    * The following are specific values for siso->siso_data[0],
    * otherwise known as the AFI:
    */
   #define AFI_37          0x37    /* bcd of "37" */
   #define AFI_OSINET      0x47    /* bcd of "47" */
   #define AFI_RFC986      0x47    /* bcd of "47" */
   #define AFI_SNA         0x00    /* SubNetwork Address; invalid really... */
   
   #ifdef _KERNEL
   
   #include <sys/protosw.h>
   
   extern struct domain isodomain;
   extern const struct protosw isosw[];
   
   #define satosiso(sa)    ((struct sockaddr_iso *)(sa))
   #define satocsiso(sa)   ((const struct sockaddr_iso *)(sa))
   #define sisotosa(siso)  ((struct sockaddr *)(siso))
   
   int sockaddr_iso_cmp(const struct sockaddr *, const struct sockaddr *);
   
   static inline int
   sockaddr_iso_init1(struct sockaddr_iso *siso, const struct iso_addr *addr)
   {
           memset(&siso->siso_plen, 0,
               sizeof(*siso) - offsetof(struct sockaddr_iso, siso_plen));
   
           if (offsetof(struct iso_addr, isoa_genaddr[addr->isoa_len]) >
               sizeof(struct iso_addr))
                   return EINVAL;
           memcpy(&siso->siso_addr, addr,
               offsetof(struct iso_addr, isoa_genaddr[addr->isoa_len]));
           return 0;
   }
   
   static inline int
   sockaddr_iso_init(struct sockaddr_iso *siso, const struct iso_addr *addr)
   {
           siso->siso_family = AF_ISO;
           siso->siso_len = sizeof(*siso);
           return sockaddr_iso_init1(siso, addr);
   }
   
   static inline struct sockaddr *
   sockaddr_iso_alloc(const struct iso_addr *addr, int flags)
   {
           struct sockaddr *sa;
   
           sa = sockaddr_alloc(AF_ISO, sizeof(struct sockaddr_iso), flags);
   
           if (sa == NULL)
                   return NULL;
   
           if (sockaddr_iso_init1(satosiso(sa), addr) != 0) {
                   sockaddr_free(sa);
                   return NULL;
           }
           return sa;
   }
   
   #else
   /* user utilities definitions from the iso library */
   
   #include <sys/cdefs.h>
   
   __BEGIN_DECLS
   struct iso_addr *iso_addr(const char *);
   char           *iso_ntoa(const struct iso_addr *);
   
   /* THESE DON'T EXIST YET */
   struct hostent *iso_gethostbyname(const char *);
   struct hostent *iso_gethostbyaddr(const char *, int, int);
   __END_DECLS
   
   #endif /* _KERNEL */
   
   #endif /* !_NETISO_ISO_H_ */

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