bsd/kern/uipc_proto.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
  24 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  25 /*-
  26  * Copyright (c) 1982, 1986, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer.
  34  * 2. Redistributions in binary form must reproduce the above copyright
  35  *    notice, this list of conditions and the following disclaimer in the
  36  *    documentation and/or other materials provided with the distribution.
  37  * 3. All advertising materials mentioning features or use of this software
  38  *    must display the following acknowledgement:
  39  *      This product includes software developed by the University of
  40  *      California, Berkeley and its contributors.
  41  * 4. Neither the name of the University nor the names of its contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  48  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  55  * SUCH DAMAGE.
  56  *
  57  *      @(#)uipc_proto.c        8.2 (Berkeley) 2/14/95
  58  */
  59
  60 #include <sys/param.h>
  61 #include <sys/socket.h>
  62 #include <sys/protosw.h>
  63 #include <sys/domain.h>
  64 #include <sys/mbuf.h>
  65 #include <sys/un.h>
  66 #include <net/raw_cb.h>
  67 #include <sys/sysctl.h>
  68
  69 /*
  70  * Definitions of protocols supported in the UNIX domain.
  71  */
  72
  73 int     uipc_usrreq(), raw_usrreq();
  74 void    raw_init(), raw_input(), raw_ctlinput();
  75 extern  struct domain localdomain;              /* or at least forward */
  76
  77 static struct protosw localsw[] = {
  78 { SOCK_STREAM,  &localdomain,   0,      PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS,
  79   0,            0,              0,              uipc_ctloutput,
  80   0,
  81   0,            0,              0,              0,
  82   0,
  83   &uipc_usrreqs,
  84   0,            0,              0
  85
  86 },
  87 { SOCK_DGRAM,   &localdomain,   0,              PR_ATOMIC|PR_ADDR|PR_RIGHTS,
  88   0,            0,              0,              uipc_ctloutput,
  89   0,
  90   0,            0,              0,              0,
  91   0,
  92   &uipc_usrreqs,
  93   0,            0,              0
  94 },
  95 { 0,            0,              0,              0,
  96   0,            0,              raw_ctlinput,   0,
  97   0,
  98   0,            0,              0,              0,
  99   0,
 100   &raw_usrreqs,
 101   0,                    0,              0
 102 }
 103 };
 104
 105 int local_proto_count = (sizeof (localsw) / sizeof (struct protosw));
 106
 107 static void pre_unp_init()
 108 {       static int localdomain_initted = 0;
 109         register int i;
 110         register struct protosw *pr;
 111         register struct domain *dp = &localdomain;
 112
 113         for (i=0, pr = &localsw[0]; i<local_proto_count; i++, pr++)
 114                 net_add_proto(pr, dp);
 115         unp_init();
 116 }
 117
 118 struct domain localdomain =
 119     { AF_LOCAL, "unix", pre_unp_init, unp_externalize, unp_dispose,
 120       localsw};
 121
 122
 123
 124
 125 SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
 126 SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0, "SOCK_STREAM");
 127 SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");
 128