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 /* 35 * Definitions for the TrustedBSD LOMAC integrity policy module. 36 */ 37 #ifndef _SYS_SECURITY_MAC_LOMAC_H 38 #define _SYS_SECURITY_MAC_LOMAC_H 39 40 #define MAC_LOMAC_EXTATTR_NAMESPACE EXTATTR_NAMESPACE_SYSTEM 41 #define MAC_LOMAC_EXTATTR_NAME "mac_lomac" 42 43 #define MAC_LOMAC_LABEL_NAME "lomac" 44 45 #define MAC_LOMAC_FLAG_SINGLE 0x00000001 /* ml_single initialized */ 46 #define MAC_LOMAC_FLAG_RANGE 0x00000002 /* ml_range* initialized */ 47 #define MAC_LOMAC_FLAG_AUX 0x00000004 /* ml_auxsingle initialized */ 48 #define MAC_LOMAC_FLAGS_BOTH (MAC_LOMAC_FLAG_SINGLE | MAC_LOMAC_FLAG_RANGE) 49 #define MAC_LOMAC_FLAG_UPDATE 0x00000008 /* must demote this process */ 50 51 #define MAC_LOMAC_TYPE_UNDEF 0 /* Undefined */ 52 #define MAC_LOMAC_TYPE_GRADE 1 /* Hierarchal grade with mb_grade. */ 53 #define MAC_LOMAC_TYPE_LOW 2 /* Dominated by any 54 * MAC_LOMAC_TYPE_LABEL. */ 55 #define MAC_LOMAC_TYPE_HIGH 3 /* Dominates any 56 * MAC_LOMAC_TYPE_LABEL. */ 57 #define MAC_LOMAC_TYPE_EQUAL 4 /* Equivalent to any 58 * MAC_LOMAC_TYPE_LABEL. */ 59 60 /* 61 * Structures and constants associated with a LOMAC Integrity policy. 62 * mac_lomac represents a LOMAC label, with mb_type determining its properties, 63 * and mb_grade represents the hierarchal grade if valid for the current 64 * mb_type. 65 */ 66 67 struct mac_lomac_element { 68 u_short mle_type; 69 u_short mle_grade; 70 }; 71 72 /* 73 * LOMAC labels start with two components: a single label, and a label 74 * range. Depending on the context, one or both may be used; the ml_flags 75 * field permits the provider to indicate what fields are intended for 76 * use. The auxiliary label works the same way, but is only valid on 77 * filesystem objects to provide inheritance semantics on directories 78 * and "non-demoting" execution on executable files. 79 */ 80 struct mac_lomac { 81 int ml_flags; 82 struct mac_lomac_element ml_single; 83 struct mac_lomac_element ml_rangelow, ml_rangehigh; 84 struct mac_lomac_element ml_auxsingle; 85 }; 86 87 #endif /* !_SYS_SECURITY_MAC_LOMAC_H */ 88