]>
git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - security/selinux/ss/mls_types.h
2 * Type definitions for the multi-level security (MLS) policy.
4 * Author : Stephen Smalley, <sds@epoch.ncsc.mil>
7 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
9 * Support for enhanced MLS infrastructure.
11 * Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
14 #ifndef _SS_MLS_TYPES_H_
15 #define _SS_MLS_TYPES_H_
21 u32 sens
; /* sensitivity */
22 struct ebitmap cat
; /* category set */
26 struct mls_level level
[2]; /* low == level[0], high == level[1] */
29 static inline int mls_level_eq(struct mls_level
*l1
, struct mls_level
*l2
)
31 return ((l1
->sens
== l2
->sens
) &&
32 ebitmap_cmp(&l1
->cat
, &l2
->cat
));
35 static inline int mls_level_dom(struct mls_level
*l1
, struct mls_level
*l2
)
37 return ((l1
->sens
>= l2
->sens
) &&
38 ebitmap_contains(&l1
->cat
, &l2
->cat
, 0));
41 #define mls_level_incomp(l1, l2) \
42 (!mls_level_dom((l1), (l2)) && !mls_level_dom((l2), (l1)))
44 #define mls_level_between(l1, l2, l3) \
45 (mls_level_dom((l1), (l2)) && mls_level_dom((l3), (l1)))
47 #define mls_range_contains(r1, r2) \
48 (mls_level_dom(&(r2).level[0], &(r1).level[0]) && \
49 mls_level_dom(&(r1).level[1], &(r2).level[1]))
51 #endif /* _SS_MLS_TYPES_H_ */