sys/kern/uipc_proto.c

   1 /*-
   2  * Copyright (c) 1982, 1986, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)uipc_proto.c        8.1 (Berkeley) 6/10/93
  30  * $FreeBSD: src/sys/kern/uipc_proto.c,v 1.21.2.1 2002/03/09 05:22:23 dd Exp $
  31  */
  32
  33 #include <sys/param.h>
  34 #include <sys/kernel.h>
  35 #include <sys/domain.h>
  36 #include <sys/protosw.h>
  37 #include <sys/socket.h>
  38 #include <sys/queue.h>
  39 #include <sys/sysctl.h>
  40 #include <sys/un.h>
  41
  42 #include <net/raw_cb.h>
  43
  44 /*
  45  * Definitions of protocols supported in the LOCAL domain.
  46  */
  47
  48 static struct protosw localsw[] = {
  49     {
  50         .pr_type = SOCK_STREAM,
  51         .pr_domain = &localdomain,
  52         .pr_protocol = 0,
  53         .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS|PR_SYNC_PORT,
  54         .pr_ctloutput = uipc_ctloutput,
  55         .pr_usrreqs = &uipc_usrreqs
  56     },
  57     {
  58         .pr_type = SOCK_SEQPACKET,
  59         .pr_domain = &localdomain,
  60         .pr_protocol = 0,
  61         .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS|PR_SYNC_PORT|
  62                     PR_ATOMIC,
  63         .pr_ctloutput = uipc_ctloutput,
  64         .pr_usrreqs = &uipc_usrreqs
  65     },
  66     {
  67         .pr_type = SOCK_DGRAM,
  68         .pr_domain = &localdomain,
  69         .pr_protocol = 0,
  70         .pr_flags = PR_RIGHTS|PR_SYNC_PORT|PR_ATOMIC|PR_ADDR,
  71         .pr_ctloutput = NULL,
  72         .pr_usrreqs = &uipc_usrreqs
  73     }
  74 };
  75
  76 struct domain localdomain = {
  77         .dom_family             = AF_LOCAL,
  78         .dom_name               = "local",
  79         .dom_init               = unp_init,
  80         .dom_externalize        = unp_externalize,
  81         .dom_dispose            = unp_dispose,
  82         .dom_protosw            = localsw,
  83         .dom_protoswNPROTOSW    = &localsw[NELEM(localsw)],
  84         .dom_next               = SLIST_ENTRY_INITIALIZER,
  85         .dom_rtattach           = NULL,
  86         .dom_rtoffset           = 0,
  87         .dom_maxrtkey           = 0,
  88         .dom_ifattach           = NULL,
  89         .dom_ifdetach           = NULL
  90 };
  91
  92 DOMAIN_SET(local);
  93
  94 SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
  95 SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0, "SOCK_STREAM");
  96 SYSCTL_NODE(_net_local, SOCK_SEQPACKET, seqpacket, CTLFLAG_RW, 0,
  97                         "SOCK_SEQPACKET");
  98 SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");