1 /*-
2 * Copyright (c) 1999-2002 Robert N. M. Watson
3 * Copyright (c) 2001-2002 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 NAI Labs,
9 * the Security Research Division of Network Associates, Inc. under
10 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
11 * 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: src/sys/security/mac_lomac/mac_lomac.h,v 1.3 2004/02/22 00:33:11 rwatson Exp $
35 */
36 /*
37 * Definitions for the TrustedBSD LOMAC integrity policy module.
38 */
39 #ifndef _SYS_SECURITY_MAC_LOMAC_H
40 #define _SYS_SECURITY_MAC_LOMAC_H
41
42 #define MAC_LOMAC_EXTATTR_NAMESPACE EXTATTR_NAMESPACE_SYSTEM
43 #define MAC_LOMAC_EXTATTR_NAME "mac_lomac"
44
45 #define MAC_LOMAC_LABEL_NAME "lomac"
46
47 #define MAC_LOMAC_FLAG_SINGLE 0x00000001 /* ml_single initialized */
48 #define MAC_LOMAC_FLAG_RANGE 0x00000002 /* ml_range* initialized */
49 #define MAC_LOMAC_FLAG_AUX 0x00000004 /* ml_auxsingle initialized */
50 #define MAC_LOMAC_FLAGS_BOTH (MAC_LOMAC_FLAG_SINGLE | MAC_LOMAC_FLAG_RANGE)
51 #define MAC_LOMAC_FLAG_UPDATE 0x00000008 /* must demote this process */
52
53 #define MAC_LOMAC_TYPE_UNDEF 0 /* Undefined */
54 #define MAC_LOMAC_TYPE_GRADE 1 /* Hierarchal grade with mb_grade. */
55 #define MAC_LOMAC_TYPE_LOW 2 /* Dominated by any
56 * MAC_LOMAC_TYPE_LABEL. */
57 #define MAC_LOMAC_TYPE_HIGH 3 /* Dominates any
58 * MAC_LOMAC_TYPE_LABEL. */
59 #define MAC_LOMAC_TYPE_EQUAL 4 /* Equivilent to any
60 * MAC_LOMAC_TYPE_LABEL. */
61
62 /* XXXMAC: temporarily disabled because we still need struct oldmac. */
63 /*
64 * Structures and constants associated with a LOMAC Integrity policy.
65 * mac_lomac represents a LOMAC label, with mb_type determining its properties,
66 * and mb_grade represents the hierarchal grade if valid for the current
67 * mb_type.
68 */
69
70 struct mac_lomac_element {
71 u_short mle_type;
72 u_short mle_grade;
73 };
74
75 /*
76 * LOMAC labels start with two components: a single label, and a label
77 * range. Depending on the context, one or both may be used; the ml_flags
78 * field permits the provider to indicate what fields are intended for
79 * use. The auxiliary label works the same way, but is only valid on
80 * filesystem objects to provide inheritance semantics on directories
81 * and "non-demoting" execution on executable files.
82 */
83 struct mac_lomac {
84 int ml_flags;
85 struct mac_lomac_element ml_single;
86 struct mac_lomac_element ml_rangelow, ml_rangehigh;
87 struct mac_lomac_element ml_auxsingle;
88 };
89
90 #endif /* !_SYS_SECURITY_MAC_LOMAC_H */
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