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 * $FreeBSD$ 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 /* Equivalent to any 60 * MAC_LOMAC_TYPE_LABEL. */ 61 62 /* 63 * Structures and constants associated with a LOMAC Integrity policy. 64 * mac_lomac represents a LOMAC label, with mb_type determining its properties, 65 * and mb_grade represents the hierarchal grade if valid for the current 66 * mb_type. 67 */ 68 69 struct mac_lomac_element { 70 u_short mle_type; 71 u_short mle_grade; 72 }; 73 74 /* 75 * LOMAC labels start with two components: a single label, and a label 76 * range. Depending on the context, one or both may be used; the ml_flags 77 * field permits the provider to indicate what fields are intended for 78 * use. The auxiliary label works the same way, but is only valid on 79 * filesystem objects to provide inheritance semantics on directories 80 * and "non-demoting" execution on executable files. 81 */ 82 struct mac_lomac { 83 int ml_flags; 84 struct mac_lomac_element ml_single; 85 struct mac_lomac_element ml_rangelow, ml_rangehigh; 86 struct mac_lomac_element ml_auxsingle; 87 }; 88 89 #endif /* !_SYS_SECURITY_MAC_LOMAC_H */ 90