xref: /freebsd/sys/security/mac_none/mac_none.c (revision 0efd6615cd5f39b67cec82a7034e655f3b5801e3)
1d8a7b7a3SRobert Watson /*-
2f6a41092SRobert Watson  * Copyright (c) 1999-2002 Robert N. M. Watson
3f6a41092SRobert Watson  * Copyright (c) 2001-2003 Networks Associates Technology, Inc.
4d8a7b7a3SRobert Watson  * All rights reserved.
5d8a7b7a3SRobert Watson  *
6d8a7b7a3SRobert Watson  * This software was developed by Robert Watson for the TrustedBSD Project.
7d8a7b7a3SRobert Watson  *
8dc858fcaSRobert Watson  * This software was developed for the FreeBSD Project in part by Network
9dc858fcaSRobert Watson  * Associates Laboratories, the Security Research Division of Network
10dc858fcaSRobert Watson  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
11dc858fcaSRobert Watson  * as part of the DARPA CHATS research program.
12d8a7b7a3SRobert Watson  *
13d8a7b7a3SRobert Watson  * Redistribution and use in source and binary forms, with or without
14d8a7b7a3SRobert Watson  * modification, are permitted provided that the following conditions
15d8a7b7a3SRobert Watson  * are met:
16d8a7b7a3SRobert Watson  * 1. Redistributions of source code must retain the above copyright
17d8a7b7a3SRobert Watson  *    notice, this list of conditions and the following disclaimer.
18d8a7b7a3SRobert Watson  * 2. Redistributions in binary form must reproduce the above copyright
19d8a7b7a3SRobert Watson  *    notice, this list of conditions and the following disclaimer in the
20d8a7b7a3SRobert Watson  *    documentation and/or other materials provided with the distribution.
21d8a7b7a3SRobert Watson  *
22d8a7b7a3SRobert Watson  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23d8a7b7a3SRobert Watson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24d8a7b7a3SRobert Watson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25d8a7b7a3SRobert Watson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26d8a7b7a3SRobert Watson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27d8a7b7a3SRobert Watson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28d8a7b7a3SRobert Watson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29d8a7b7a3SRobert Watson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30d8a7b7a3SRobert Watson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31d8a7b7a3SRobert Watson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32d8a7b7a3SRobert Watson  * SUCH DAMAGE.
33d8a7b7a3SRobert Watson  *
34d8a7b7a3SRobert Watson  * $FreeBSD$
35d8a7b7a3SRobert Watson  */
36d8a7b7a3SRobert Watson 
37d8a7b7a3SRobert Watson /*
38d8a7b7a3SRobert Watson  * Developed by the TrustedBSD Project.
390164a499SRobert Watson  *
400164a499SRobert Watson  * Sample policy implementing no entry points; for performance measurement
410164a499SRobert Watson  * purposes only.  If you're looking for a stub policy to base new policies
420164a499SRobert Watson  * on, try mac_stub.
43d8a7b7a3SRobert Watson  */
44d8a7b7a3SRobert Watson 
45d8a7b7a3SRobert Watson #include <sys/types.h>
46d8a7b7a3SRobert Watson #include <sys/param.h>
47d8a7b7a3SRobert Watson #include <sys/acl.h>
48d8a7b7a3SRobert Watson #include <sys/conf.h>
49763bbd2fSRobert Watson #include <sys/extattr.h>
50d8a7b7a3SRobert Watson #include <sys/kernel.h>
51d8a7b7a3SRobert Watson #include <sys/mac.h>
52d8a7b7a3SRobert Watson #include <sys/mount.h>
53d8a7b7a3SRobert Watson #include <sys/proc.h>
54d8a7b7a3SRobert Watson #include <sys/systm.h>
55d8a7b7a3SRobert Watson #include <sys/sysproto.h>
56d8a7b7a3SRobert Watson #include <sys/sysent.h>
57d8a7b7a3SRobert Watson #include <sys/vnode.h>
58d8a7b7a3SRobert Watson #include <sys/file.h>
59d8a7b7a3SRobert Watson #include <sys/socket.h>
60d8a7b7a3SRobert Watson #include <sys/socketvar.h>
61d8a7b7a3SRobert Watson #include <sys/pipe.h>
6236422989SPoul-Henning Kamp #include <sys/sx.h>
63d8a7b7a3SRobert Watson #include <sys/sysctl.h>
64d8a7b7a3SRobert Watson 
65d8a7b7a3SRobert Watson #include <fs/devfs/devfs.h>
66d8a7b7a3SRobert Watson 
67d8a7b7a3SRobert Watson #include <net/bpfdesc.h>
68d8a7b7a3SRobert Watson #include <net/if.h>
69d8a7b7a3SRobert Watson #include <net/if_types.h>
70d8a7b7a3SRobert Watson #include <net/if_var.h>
71d8a7b7a3SRobert Watson 
72d8a7b7a3SRobert Watson #include <netinet/in.h>
73d8a7b7a3SRobert Watson #include <netinet/ip_var.h>
74d8a7b7a3SRobert Watson 
75d8a7b7a3SRobert Watson #include <vm/vm.h>
76d8a7b7a3SRobert Watson 
770efd6615SRobert Watson #include <security/mac/mac_policy.h>
78d8a7b7a3SRobert Watson 
79d8a7b7a3SRobert Watson SYSCTL_DECL(_security_mac);
80d8a7b7a3SRobert Watson 
81d8a7b7a3SRobert Watson SYSCTL_NODE(_security_mac, OID_AUTO, none, CTLFLAG_RW, 0,
82d8a7b7a3SRobert Watson     "TrustedBSD mac_none policy controls");
83d8a7b7a3SRobert Watson 
84eba0370dSRobert Watson static int	mac_none_enabled = 1;
85d8a7b7a3SRobert Watson SYSCTL_INT(_security_mac_none, OID_AUTO, enabled, CTLFLAG_RW,
86d8a7b7a3SRobert Watson     &mac_none_enabled, 0, "Enforce none policy");
87d8a7b7a3SRobert Watson 
885c8dd342SRobert Watson static struct mac_policy_ops mac_none_ops =
89d8a7b7a3SRobert Watson {
90d8a7b7a3SRobert Watson };
91d8a7b7a3SRobert Watson 
9278183ac2SRobert Watson MAC_POLICY_SET(&mac_none_ops, mac_none, "TrustedBSD MAC/None",
93740348c4SRobert Watson     MPC_LOADTIME_FLAG_UNLOADOK, NULL);
94