bsd/kern/uipc_proto.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_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. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
  29 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  30 /*-
  31  * Copyright (c) 1982, 1986, 1993
  32  *      The Regents of the University of California.  All rights reserved.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. All advertising materials mentioning features or use of this software
  43  *    must display the following acknowledgement:
  44  *      This product includes software developed by the University of
  45  *      California, Berkeley and its contributors.
  46  * 4. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)uipc_proto.c        8.2 (Berkeley) 2/14/95
  63  */
  64
  65 #include <sys/param.h>
  66 #include <sys/socket.h>
  67 #include <sys/protosw.h>
  68 #include <sys/domain.h>
  69 #include <sys/mbuf.h>
  70 #include <sys/un.h>
  71 #include <net/raw_cb.h>
  72 #include <sys/sysctl.h>
  73
  74 /*
  75  * Definitions of protocols supported in the UNIX domain.
  76  */
  77
  78 int     uipc_usrreq(), raw_usrreq();
  79 void    raw_init(), raw_input(), raw_ctlinput();
  80 extern  struct domain localdomain;              /* or at least forward */
  81
  82 static struct protosw localsw[] = {
  83 { SOCK_STREAM,  &localdomain,   0,      PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS,
  84   0,            0,              0,              uipc_ctloutput,
  85   0,
  86   0,            0,              0,              0,
  87   0,
  88   &uipc_usrreqs,
  89   0,            0,              0
  90
  91 },
  92 { SOCK_DGRAM,   &localdomain,   0,              PR_ATOMIC|PR_ADDR|PR_RIGHTS,
  93   0,            0,              0,              uipc_ctloutput,
  94   0,
  95   0,            0,              0,              0,
  96   0,
  97   &uipc_usrreqs,
  98   0,            0,              0
  99 },
 100 { 0,            0,              0,              0,
 101   0,            0,              raw_ctlinput,   0,
 102   0,
 103   0,            0,              0,              0,
 104   0,
 105   &raw_usrreqs,
 106   0,                    0,              0
 107 }
 108 };
 109
 110 int local_proto_count = (sizeof (localsw) / sizeof (struct protosw));
 111
 112 static void pre_unp_init()
 113 {       static int localdomain_initted = 0;
 114         register int i;
 115         register struct protosw *pr;
 116         register struct domain *dp = &localdomain;
 117
 118         for (i=0, pr = &localsw[0]; i<local_proto_count; i++, pr++)
 119                 net_add_proto(pr, dp);
 120         unp_init();
 121 }
 122
 123 struct domain localdomain =
 124     { AF_LOCAL, "unix", pre_unp_init, unp_externalize, unp_dispose,
 125       localsw};
 126
 127
 128
 129
 130 SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
 131 SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0, "SOCK_STREAM");
 132 SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");
 133