bsd/kern/uipc_proto.c

   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 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
  23 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  24 /*-
  25  * Copyright (c) 1982, 1986, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      @(#)uipc_proto.c        8.2 (Berkeley) 2/14/95
  57  */
  58
  59 #include <sys/param.h>
  60 #include <sys/socket.h>
  61 #include <sys/protosw.h>
  62 #include <sys/domain.h>
  63 #include <sys/mbuf.h>
  64 #include <sys/un.h>
  65 #include <net/raw_cb.h>
  66 #include <sys/sysctl.h>
  67
  68 /*
  69  * Definitions of protocols supported in the UNIX domain.
  70  */
  71
  72 int     uipc_usrreq(), raw_usrreq();
  73 void    raw_init(), raw_input(), raw_ctlinput();
  74 extern  struct domain localdomain;              /* or at least forward */
  75
  76 static struct protosw localsw[] = {
  77 { SOCK_STREAM,  &localdomain,   0,      PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS,
  78   0,            0,              0,              uipc_ctloutput,
  79   0,
  80   0,            0,              0,              0,
  81   0,
  82   &uipc_usrreqs,
  83   0,            0,              0
  84
  85 },
  86 { SOCK_DGRAM,   &localdomain,   0,              PR_ATOMIC|PR_ADDR|PR_RIGHTS,
  87   0,            0,              0,              uipc_ctloutput,
  88   0,
  89   0,            0,              0,              0,
  90   0,
  91   &uipc_usrreqs,
  92   0,            0,              0
  93 },
  94 { 0,            0,              0,              0,
  95   0,            0,              raw_ctlinput,   0,
  96   0,
  97   0,            0,              0,              0,
  98   0,
  99   &raw_usrreqs,
 100   0,                    0,              0
 101 }
 102 };
 103
 104 int local_proto_count = (sizeof (localsw) / sizeof (struct protosw));
 105
 106 static void pre_unp_init()
 107 {       static int localdomain_initted = 0;
 108         register int i;
 109         register struct protosw *pr;
 110         register struct domain *dp = &localdomain;
 111
 112         for (i=0, pr = &localsw[0]; i<local_proto_count; i++, pr++)
 113                 net_add_proto(pr, dp);
 114         unp_init();
 115 }
 116
 117 struct domain localdomain =
 118     { AF_LOCAL, "unix", pre_unp_init, unp_externalize, unp_dispose,
 119       localsw};
 120
 121
 122
 123
 124 SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
 125 SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0, "SOCK_STREAM");
 126 SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");
 127