103 lines
3.9 KiB
C
103 lines
3.9 KiB
C
/*-
|
|
* Copyright (c) 1999-2002 Robert N. M. Watson
|
|
* Copyright (c) 2001-2004 Networks Associates Technology, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Robert Watson for the TrustedBSD Project.
|
|
*
|
|
* This software was developed for the FreeBSD Project in part by Network
|
|
* Associates Laboratories, the Security Research Division of Network
|
|
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
|
|
* as part of the DARPA CHATS research program.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
/*
|
|
* Definitions for the TrustedBSD MLS confidentiality policy module.
|
|
*/
|
|
#ifndef _SYS_SECURITY_MAC_MLS_H
|
|
#define _SYS_SECURITY_MAC_MLS_H
|
|
|
|
#define MAC_MLS_EXTATTR_NAMESPACE EXTATTR_NAMESPACE_SYSTEM
|
|
#define MAC_MLS_EXTATTR_NAME "mac_mls"
|
|
|
|
#define MAC_MLS_LABEL_NAME "mls"
|
|
|
|
#define MAC_MLS_FLAG_EFFECTIVE 0x00000001 /* mm_effective initialized */
|
|
#define MAC_MLS_FLAG_RANGE 0x00000002 /* mm_range* initialized */
|
|
#define MAC_MLS_FLAGS_BOTH (MAC_MLS_FLAG_EFFECTIVE | MAC_MLS_FLAG_RANGE)
|
|
|
|
#define MAC_MLS_TYPE_UNDEF 0 /* Undefined */
|
|
#define MAC_MLS_TYPE_LEVEL 1 /* Hierarchal level with mm_level. */
|
|
#define MAC_MLS_TYPE_LOW 2 /* Dominated by any
|
|
* MAC_MLS_TYPE_LABEL. */
|
|
#define MAC_MLS_TYPE_HIGH 3 /* Dominates any
|
|
* MAC_MLS_TYPE_LABEL. */
|
|
#define MAC_MLS_TYPE_EQUAL 4 /* Equivalent to any
|
|
* MAC_MLS_TYPE_LABEL. */
|
|
|
|
/*
|
|
* Structures and constants associated with a Multi-Level Security policy.
|
|
* mac_mls represents an MLS label, with mm_type determining its properties,
|
|
* and mm_level represents the hierarchal sensitivity level if valid for the
|
|
* current mm_type. If compartments are used, the same semantics apply as
|
|
* long as the suject is in every compartment the object is in. LOW, EQUAL
|
|
* and HIGH cannot be in compartments.
|
|
*/
|
|
|
|
/*
|
|
* MLS compartments bit set size (in bits).
|
|
*/
|
|
#define MAC_MLS_MAX_COMPARTMENTS 256
|
|
|
|
struct mac_mls_element {
|
|
u_short mme_type;
|
|
u_short mme_level;
|
|
u_char mme_compartments[MAC_MLS_MAX_COMPARTMENTS >> 3];
|
|
};
|
|
|
|
/*
|
|
* MLS labels consist of two components: an effective label, and a label
|
|
* range. Depending on the context, one or both may be used; the mb_flags
|
|
* field permits the provider to indicate what fields are intended for
|
|
* use.
|
|
*/
|
|
struct mac_mls {
|
|
int mm_flags;
|
|
struct mac_mls_element mm_effective;
|
|
struct mac_mls_element mm_rangelow, mm_rangehigh;
|
|
};
|
|
|
|
/*
|
|
* MLS compartments bit test/set macros.
|
|
* The range is 1 to MAC_MLS_MAX_COMPARTMENTS.
|
|
*/
|
|
#define MAC_MLS_BIT_TEST(b, w) \
|
|
((w)[(((b) - 1) >> 3)] & (1 << (((b) - 1) & 7)))
|
|
#define MAC_MLS_BIT_SET(b, w) \
|
|
((w)[(((b) - 1) >> 3)] |= (1 << (((b) - 1) & 7)))
|
|
#define MAC_MLS_BIT_SET_EMPTY(set) mls_bit_set_empty(set)
|
|
|
|
#endif /* !_SYS_SECURITY_MAC_MLS_H */
|