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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)uipc_proto.c        8.1 (Berkeley) 6/10/93
  34  * $FreeBSD: src/sys/kern/uipc_proto.c,v 1.21.2.1 2002/03/09 05:22:23 dd Exp $
  35  * $DragonFly: src/sys/kern/uipc_proto.c,v 1.6 2008/05/27 01:10:39 dillon Exp $
  36  */
  37
  38 #include <sys/param.h>
  39 #include <sys/kernel.h>
  40 #include <sys/domain.h>
  41 #include <sys/protosw.h>
  42 #include <sys/socket.h>
  43 #include <sys/queue.h>
  44 #include <sys/sysctl.h>
  45 #include <sys/un.h>
  46
  47 #include <net/raw_cb.h>
  48
  49 /*
  50  * Definitions of protocols supported in the LOCAL domain.
  51  */
  52
  53 static struct protosw localsw[] = {
  54 { SOCK_STREAM,  &localdomain,   0,      PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS,
  55   NULL,         NULL,           NULL,           &uipc_ctloutput,
  56   sync_soport,
  57   NULL,         NULL,           NULL,           NULL,
  58   &uipc_usrreqs
  59 },
  60 { SOCK_SEQPACKET, &localdomain, 0,      PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS|PR_ATOMIC,
  61   NULL,         NULL,           NULL,           &uipc_ctloutput,
  62   sync_soport,
  63   NULL,         NULL,           NULL,           NULL,
  64   &uipc_usrreqs
  65 },
  66 { SOCK_DGRAM,   &localdomain,   0,              PR_ATOMIC|PR_ADDR|PR_RIGHTS,
  67   NULL,         NULL,           NULL,           NULL,
  68   sync_soport,
  69   NULL,         NULL,           NULL,           NULL,
  70   &uipc_usrreqs
  71 },
  72 { 0,            NULL,           0,              0,
  73   NULL,         NULL,           raw_ctlinput,   NULL,
  74   sync_soport,
  75   raw_init,     NULL,           NULL,           NULL,
  76   &raw_usrreqs
  77 }
  78 };
  79
  80 struct domain localdomain = {
  81         AF_LOCAL, "local", unp_init, unp_externalize, unp_dispose,
  82         localsw, &localsw[sizeof(localsw)/sizeof(localsw[0])],
  83 };
  84
  85 DOMAIN_SET(local);
  86
  87 SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
  88 SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0, "SOCK_STREAM");
  89 SYSCTL_NODE(_net_local, SOCK_SEQPACKET, seqpacket, CTLFLAG_RW, 0, "SOCK_SEQPACKET");
  90 SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");