1/*
2 * Multi-level security (MLS) policy operations.
3 *
4 * Author : Stephen Smalley, <sds@epoch.ncsc.mil>
5 */
6/*
7 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
8 *
9 *	Support for enhanced MLS infrastructure.
10 *
11 * Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
12 */
13/*
14 * Updated: Hewlett-Packard <paul.moore@hp.com>
15 *
16 *      Added support to import/export the MLS label from NetLabel
17 *
18 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
19 */
20
21#ifndef _SS_MLS_H_
22#define _SS_MLS_H_
23
24#include "context.h"
25#include "policydb.h"
26
27int mls_compute_context_len(struct context *context);
28void mls_sid_to_context(struct context *context, char **scontext);
29int mls_context_isvalid(struct policydb *p, struct context *c);
30
31int mls_context_to_sid(char oldc,
32	               char **scontext,
33		       struct context *context,
34		       struct sidtab *s,
35		       u32 def_sid);
36
37int mls_from_string(char *str, struct context *context, gfp_t gfp_mask);
38
39int mls_convert_context(struct policydb *oldp,
40			struct policydb *newp,
41			struct context *context);
42
43int mls_compute_sid(struct context *scontext,
44		    struct context *tcontext,
45		    u16 tclass,
46		    u32 specified,
47		    struct context *newcontext);
48
49int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
50                         struct context *usercon);
51
52#ifdef CONFIG_NETLABEL
53void mls_export_netlbl_lvl(struct context *context,
54			   struct netlbl_lsm_secattr *secattr);
55void mls_import_netlbl_lvl(struct context *context,
56			   struct netlbl_lsm_secattr *secattr);
57int mls_export_netlbl_cat(struct context *context,
58			  struct netlbl_lsm_secattr *secattr);
59int mls_import_netlbl_cat(struct context *context,
60			  struct netlbl_lsm_secattr *secattr);
61#else
62static inline void mls_export_netlbl_lvl(struct context *context,
63					 struct netlbl_lsm_secattr *secattr)
64{
65	return;
66}
67static inline void mls_import_netlbl_lvl(struct context *context,
68					 struct netlbl_lsm_secattr *secattr)
69{
70	return;
71}
72static inline int mls_export_netlbl_cat(struct context *context,
73					struct netlbl_lsm_secattr *secattr)
74{
75	return -ENOMEM;
76}
77static inline int mls_import_netlbl_cat(struct context *context,
78					struct netlbl_lsm_secattr *secattr)
79{
80	return -ENOMEM;
81}
82#endif
83
84#endif	/* _SS_MLS_H */
85