Release 4.15 security/selinux/ss/mls_types.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Type definitions for the multi-level security (MLS) policy.
 *
 * Author : Stephen Smalley, <sds@tycho.nsa.gov>
 */
/*
 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
 *
 *      Support for enhanced MLS infrastructure.
 *
 * Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
 */

#ifndef _SS_MLS_TYPES_H_

#define _SS_MLS_TYPES_H_

#include "security.h"
#include "ebitmap.h"


struct mls_level {
	
u32 sens;		/* sensitivity */
	
struct ebitmap cat;	/* category set */
};


struct mls_range {
	
struct mls_level level[2]; /* low == level[0], high == level[1] */
};



static inline int mls_level_eq(struct mls_level *l1, struct mls_level *l2)
{
	return ((l1->sens == l2->sens) &&
		ebitmap_cmp(&l1->cat, &l2->cat));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Darrel Goeddel
42
97.67%
1
50.00%
Andrew Morton
1
2.33%
1
50.00%
Total
43
100.00%
2
100.00%



static inline int mls_level_dom(struct mls_level *l1, struct mls_level *l2)
{
	return ((l1->sens >= l2->sens) &&
		ebitmap_contains(&l1->cat, &l2->cat, 0));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Darrel Goeddel
39
86.67%
1
33.33%
Andrew Morton
4
8.89%
1
33.33%
Waiman Long
2
4.44%
1
33.33%
Total
45
100.00%
3
100.00%


#define mls_level_incomp(l1, l2) \
(!mls_level_dom((l1), (l2)) && !mls_level_dom((l2), (l1)))


#define mls_level_between(l1, l2, l3) \
(mls_level_dom((l1), (l2)) && mls_level_dom((l3), (l1)))


#define mls_range_contains(r1, r2) \
(mls_level_dom(&(r2).level[0], &(r1).level[0]) && \
 mls_level_dom(&(r1).level[1], &(r2).level[1]))

#endif	/* _SS_MLS_TYPES_H_ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Darrel Goeddel
93
56.36%
1
16.67%
Andrew Morton
65
39.39%
1
16.67%
Guido Trentalancia
3
1.82%
1
16.67%
Waiman Long
2
1.21%
1
16.67%
Stephen D. Smalley
1
0.61%
1
16.67%
Greg Kroah-Hartman
1
0.61%
1
16.67%
Total
165
100.00%
6
100.00%
Directory: security/selinux/ss

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