bsd/kern/sys_domain.c

   1 /*
   2  * Copyright (c) 2000-2014 Apple 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  */
  29 /*
  30  *      @(#)sys_domain.c       1.0 (6/1/2000)
  31  */
  32
  33 #include <sys/param.h>
  34 #include <sys/protosw.h>
  35 #include <sys/domain.h>
  36 #include <sys/mcache.h>
  37 #include <sys/sys_domain.h>
  38 #include <sys/sysctl.h>
  39
  40 struct domain *systemdomain = NULL;
  41
  42 /* domain init function */
  43 static void systemdomain_init(struct domain *);
  44
  45 struct domain systemdomain_s = {
  46         .dom_family =           PF_SYSTEM,
  47         .dom_name =             "system",
  48         .dom_init =             systemdomain_init,
  49 };
  50
  51 SYSCTL_NODE(_net, PF_SYSTEM, systm,
  52         CTLFLAG_RW|CTLFLAG_LOCKED, 0, "System domain");
  53
  54
  55 static void
  56 systemdomain_init(struct domain *dp)
  57 {
  58         VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
  59         VERIFY(systemdomain == NULL);
  60
  61         systemdomain = dp;
  62
  63         /* add system domain built in protocol initializers here */
  64         kern_event_init(dp);
  65         kern_control_init(dp);
  66 }