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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Multi-level security (MLS) policy operations.
4 *
5 * Author : Stephen Smalley, <sds@tycho.nsa.gov>
6 */
7/*
8 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
9 *
10 * Support for enhanced MLS infrastructure.
11 *
12 * Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
13 */
14/*
15 * Updated: Hewlett-Packard <paul@paul-moore.com>
16 *
17 * Added support to import/export the MLS label from NetLabel
18 *
19 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
20 */
21
22#ifndef _SS_MLS_H_
23#define _SS_MLS_H_
24
25#include "context.h"
26#include "policydb.h"
27
28int mls_compute_context_len(struct policydb *p, struct context *context);
29void mls_sid_to_context(struct policydb *p, struct context *context,
30 char **scontext);
31int mls_context_isvalid(struct policydb *p, struct context *c);
32int mls_range_isvalid(struct policydb *p, struct mls_range *r);
33int mls_level_isvalid(struct policydb *p, struct mls_level *l);
34
35int mls_context_to_sid(struct policydb *p,
36 char oldc,
37 char **scontext,
38 struct context *context,
39 struct sidtab *s,
40 u32 def_sid);
41
42int mls_from_string(struct policydb *p, char *str, struct context *context,
43 gfp_t gfp_mask);
44
45int mls_range_set(struct context *context, struct mls_range *range);
46
47int mls_convert_context(struct policydb *oldp,
48 struct policydb *newp,
49 struct context *context);
50
51int mls_compute_sid(struct policydb *p,
52 struct context *scontext,
53 struct context *tcontext,
54 u16 tclass,
55 u32 specified,
56 struct context *newcontext,
57 bool sock);
58
59int mls_setup_user_range(struct policydb *p,
60 struct context *fromcon, struct user_datum *user,
61 struct context *usercon);
62
63#ifdef CONFIG_NETLABEL
64void mls_export_netlbl_lvl(struct policydb *p,
65 struct context *context,
66 struct netlbl_lsm_secattr *secattr);
67void mls_import_netlbl_lvl(struct policydb *p,
68 struct context *context,
69 struct netlbl_lsm_secattr *secattr);
70int mls_export_netlbl_cat(struct policydb *p,
71 struct context *context,
72 struct netlbl_lsm_secattr *secattr);
73int mls_import_netlbl_cat(struct policydb *p,
74 struct context *context,
75 struct netlbl_lsm_secattr *secattr);
76#else
77static inline void mls_export_netlbl_lvl(struct policydb *p,
78 struct context *context,
79 struct netlbl_lsm_secattr *secattr)
80{
81 return;
82}
83static inline void mls_import_netlbl_lvl(struct policydb *p,
84 struct context *context,
85 struct netlbl_lsm_secattr *secattr)
86{
87 return;
88}
89static inline int mls_export_netlbl_cat(struct policydb *p,
90 struct context *context,
91 struct netlbl_lsm_secattr *secattr)
92{
93 return -ENOMEM;
94}
95static inline int mls_import_netlbl_cat(struct policydb *p,
96 struct context *context,
97 struct netlbl_lsm_secattr *secattr)
98{
99 return -ENOMEM;
100}
101#endif
102
103#endif /* _SS_MLS_H */
104
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Multi-level security (MLS) policy operations.
4 *
5 * Author : Stephen Smalley, <sds@tycho.nsa.gov>
6 */
7/*
8 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
9 *
10 * Support for enhanced MLS infrastructure.
11 *
12 * Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
13 */
14/*
15 * Updated: Hewlett-Packard <paul@paul-moore.com>
16 *
17 * Added support to import/export the MLS label from NetLabel
18 *
19 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
20 */
21
22#ifndef _SS_MLS_H_
23#define _SS_MLS_H_
24
25#include "context.h"
26#include "policydb.h"
27
28int mls_compute_context_len(struct policydb *p, struct context *context);
29void mls_sid_to_context(struct policydb *p, struct context *context,
30 char **scontext);
31int mls_context_isvalid(struct policydb *p, struct context *c);
32int mls_range_isvalid(struct policydb *p, struct mls_range *r);
33int mls_level_isvalid(struct policydb *p, struct mls_level *l);
34
35int mls_context_to_sid(struct policydb *p,
36 char oldc,
37 char *scontext,
38 struct context *context,
39 struct sidtab *s,
40 u32 def_sid);
41
42int mls_from_string(struct policydb *p, char *str, struct context *context,
43 gfp_t gfp_mask);
44
45int mls_range_set(struct context *context, struct mls_range *range);
46
47int mls_convert_context(struct policydb *oldp,
48 struct policydb *newp,
49 struct context *oldc,
50 struct context *newc);
51
52int mls_compute_sid(struct policydb *p,
53 struct context *scontext,
54 struct context *tcontext,
55 u16 tclass,
56 u32 specified,
57 struct context *newcontext,
58 bool sock);
59
60int mls_setup_user_range(struct policydb *p,
61 struct context *fromcon, struct user_datum *user,
62 struct context *usercon);
63
64#ifdef CONFIG_NETLABEL
65void mls_export_netlbl_lvl(struct policydb *p,
66 struct context *context,
67 struct netlbl_lsm_secattr *secattr);
68void mls_import_netlbl_lvl(struct policydb *p,
69 struct context *context,
70 struct netlbl_lsm_secattr *secattr);
71int mls_export_netlbl_cat(struct policydb *p,
72 struct context *context,
73 struct netlbl_lsm_secattr *secattr);
74int mls_import_netlbl_cat(struct policydb *p,
75 struct context *context,
76 struct netlbl_lsm_secattr *secattr);
77#else
78static inline void mls_export_netlbl_lvl(struct policydb *p,
79 struct context *context,
80 struct netlbl_lsm_secattr *secattr)
81{
82 return;
83}
84static inline void mls_import_netlbl_lvl(struct policydb *p,
85 struct context *context,
86 struct netlbl_lsm_secattr *secattr)
87{
88 return;
89}
90static inline int mls_export_netlbl_cat(struct policydb *p,
91 struct context *context,
92 struct netlbl_lsm_secattr *secattr)
93{
94 return -ENOMEM;
95}
96static inline int mls_import_netlbl_cat(struct policydb *p,
97 struct context *context,
98 struct netlbl_lsm_secattr *secattr)
99{
100 return -ENOMEM;
101}
102#endif
103
104#endif /* _SS_MLS_H */
105