mac_none.c revision 165469 
1/*-
2 * Copyright (c) 1999-2002 Robert N. M. Watson
3 * Copyright (c) 2001-2003 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed by Robert Watson for the TrustedBSD Project.
7 *
8 * This software was developed for the FreeBSD Project in part by Network
9 * Associates Laboratories, the Security Research Division of Network
10 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
11 * as part of the DARPA CHATS research program.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $FreeBSD: head/sys/security/mac_none/mac_none.c 165469 2006-12-22 23:34:47Z rwatson $
35 */
36
37/*
38 * Developed by the TrustedBSD Project.
39 *
40 * Sample policy implementing no entry points; for performance measurement
41 * purposes only.  If you're looking for a stub policy to base new policies
42 * on, try mac_stub.
43 */
44
45#include <sys/types.h>
46#include <sys/param.h>
47#include <sys/acl.h>
48#include <sys/conf.h>
49#include <sys/extattr.h>
50#include <sys/kernel.h>
51#include <sys/mac.h>
52#include <sys/mount.h>
53#include <sys/proc.h>
54#include <sys/systm.h>
55#include <sys/sysproto.h>
56#include <sys/sysent.h>
57#include <sys/vnode.h>
58#include <sys/file.h>
59#include <sys/socket.h>
60#include <sys/socketvar.h>
61#include <sys/pipe.h>
62#include <sys/sx.h>
63#include <sys/sysctl.h>
64
65#include <fs/devfs/devfs.h>
66
67#include <net/bpfdesc.h>
68#include <net/if.h>
69#include <net/if_types.h>
70#include <net/if_var.h>
71
72#include <netinet/in.h>
73#include <netinet/ip_var.h>
74
75#include <vm/vm.h>
76
77#include <security/mac/mac_policy.h>
78
79SYSCTL_DECL(_security_mac);
80
81SYSCTL_NODE(_security_mac, OID_AUTO, none, CTLFLAG_RW, 0,
82    "TrustedBSD mac_none policy controls");
83
84static int	mac_none_enabled = 1;
85SYSCTL_INT(_security_mac_none, OID_AUTO, enabled, CTLFLAG_RW,
86    &mac_none_enabled, 0, "Enforce none policy");
87
88static struct mac_policy_ops mac_none_ops =
89{
90};
91
92MAC_POLICY_SET(&mac_none_ops, mac_none, "TrustedBSD MAC/None",
93    MPC_LOADTIME_FLAG_UNLOADOK, NULL);
94