The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netiso/iso_proto.c

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    1 /*      $NetBSD: iso_proto.c,v 1.14 2003/08/07 16:33:37 agc 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_proto.c 8.2 (Berkeley) 2/9/95
   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  * iso_proto.c : protocol switch tables in the ISO domain
   62  *
   63  * ISO protocol family includes TP, CLTP, CLNP, 8208
   64  * TP and CLNP are implemented here.
   65  */
   66 
   67 #include <sys/cdefs.h>
   68 __KERNEL_RCSID(0, "$NetBSD: iso_proto.c,v 1.14 2003/08/07 16:33:37 agc Exp $");
   69 
   70 #include "opt_iso.h"
   71 
   72 #ifdef  ISO
   73 #include <sys/param.h>
   74 #include <sys/socket.h>
   75 #include <sys/protosw.h>
   76 #include <sys/domain.h>
   77 #include <sys/mbuf.h>
   78 
   79 #include <net/radix.h>
   80 
   81 #include <netiso/iso.h>
   82 
   83 #include <netiso/clnp.h>
   84 #include <netiso/tp_param.h>
   85 #include <netiso/tp_var.h>
   86 #include <netiso/esis.h>
   87 #include <netiso/idrp_var.h>
   88 #include <netiso/iso_pcb.h>
   89 #include <netiso/cltp_var.h>
   90 
   91 struct protosw  isosw[] = {
   92         /*
   93          *  We need a datagram entry through which net mgmt programs can get
   94          *      to the iso_control procedure (iso ioctls). Thus, a minimal
   95          *      SOCK_DGRAM interface is provided here.
   96          *  THIS ONE MUST BE FIRST: Kludge city : socket() says if(!proto) call
   97          *  pffindtype, which gets the first entry that matches the type.
   98          *  sigh.
   99          */
  100         {SOCK_DGRAM, &isodomain, ISOPROTO_CLTP, PR_ATOMIC | PR_ADDR,
  101                 0, cltp_output, 0, 0,
  102                 cltp_usrreq,
  103                 cltp_init, 0, 0, 0
  104         },
  105 
  106         /*
  107          *      A datagram interface for clnp cannot co-exist with TP/CLNP
  108          *  because CLNP has no way to discriminate incoming TP packets from
  109          *  packets coming in for any other higher layer protocol.
  110          *  Old way: set it up so that pffindproto(... dgm, clnp) fails.
  111          *  New way: let pffindproto work (for x.25, thank you) but create
  112          *      a clnp_usrreq() that returns error on PRU_ATTACH.
  113          */
  114         {SOCK_DGRAM, &isodomain, ISOPROTO_CLNP, 0,
  115                 0, clnp_output, 0, 0,
  116                 clnp_usrreq,
  117                 clnp_init, 0, clnp_slowtimo, clnp_drain,
  118         },
  119 
  120         /* raw clnp */
  121         {SOCK_RAW, &isodomain, ISOPROTO_RAW, PR_ATOMIC | PR_ADDR,
  122                 rclnp_input, rclnp_output, 0, rclnp_ctloutput,
  123                 clnp_usrreq,
  124                 0, 0, 0, 0
  125         },
  126 
  127         /* ES-IS protocol */
  128         {SOCK_DGRAM, &isodomain, ISOPROTO_ESIS, PR_ATOMIC | PR_ADDR,
  129                 esis_input, 0, esis_ctlinput, 0,
  130                 esis_usrreq,
  131                 esis_init, 0, 0, 0
  132         },
  133 
  134         /* ISOPROTO_INTRAISIS */
  135         {SOCK_DGRAM, &isodomain, ISOPROTO_INTRAISIS, PR_ATOMIC | PR_ADDR,
  136                 isis_input, 0, 0, 0,
  137                 esis_usrreq,
  138                 0, 0, 0, 0
  139         },
  140 
  141         /* ISOPROTO_IDRP */
  142         {SOCK_DGRAM, &isodomain, ISOPROTO_IDRP, PR_ATOMIC | PR_ADDR,
  143                 idrp_input, 0, 0, 0,
  144                 idrp_usrreq,
  145                 idrp_init, 0, 0, 0
  146         },
  147 
  148         /* ISOPROTO_TP */
  149         {SOCK_SEQPACKET, &isodomain, ISOPROTO_TP, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN | PR_ABRTACPTDIS,
  150                 tpclnp_input, 0, tpclnp_ctlinput, tp_ctloutput,
  151                 tp_usrreq,
  152                 tp_init, tp_fasttimo, tp_slowtimo, tp_drain,
  153         },
  154 
  155 #ifdef TPCONS
  156         /* ISOPROTO_TP */
  157         {SOCK_SEQPACKET, &isodomain, ISOPROTO_TP0, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN | PR_ABRTACPTDIS,
  158                 tpcons_input, 0, 0, tp_ctloutput,
  159                 tp_usrreq,
  160                 cons_init, 0, 0, 0,
  161         },
  162 #endif
  163 };
  164 
  165 
  166 struct domain   isodomain = {
  167         PF_ISO,                 /* family */
  168         "iso-domain",           /* name */
  169         0,                      /* initialize routine */
  170         0,                      /* externalize access rights */
  171         0,                      /* dispose of internalized rights */
  172         isosw,                  /* protosw */
  173         &isosw[sizeof(isosw) / sizeof(isosw[0])],       /* NPROTOSW */
  174         0,                      /* next */
  175         rn_inithead,            /* rtattach */
  176         48,                     /* rtoffset */
  177         sizeof(struct sockaddr_iso)     /* maxkeylen */
  178 };
  179 #endif                          /* ISO */

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