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
27 int mls_compute_context_len(struct context *context);
28 void mls_sid_to_context(struct context *context, char **scontext);
29 int mls_context_isvalid(struct policydb *p, struct context *c);
30 int mls_range_isvalid(struct policydb *p, struct mls_range *r);
31 int mls_level_isvalid(struct policydb *p, struct mls_level *l);
32
33 int mls_context_to_sid(struct policydb *p,
34 char oldc,
35 char **scontext,
36 struct context *context,
37 struct sidtab *s,
38 u32 def_sid);
39
40 int mls_from_string(char *str, struct context *context, gfp_t gfp_mask);
41
42 int mls_range_set(struct context *context, struct mls_range *range);
43
44 int mls_convert_context(struct policydb *oldp,
45 struct policydb *newp,
46 struct context *context);
47
48 int mls_compute_sid(struct context *scontext,
49 struct context *tcontext,
50 u16 tclass,
51 u32 specified,
52 struct context *newcontext,
53 bool sock);
54
55 int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
56 struct context *usercon);
57
58 #ifdef CONFIG_NETLABEL
59 void mls_export_netlbl_lvl(struct context *context,
60 struct netlbl_lsm_secattr *secattr);
61 void mls_import_netlbl_lvl(struct context *context,
62 struct netlbl_lsm_secattr *secattr);
63 int mls_export_netlbl_cat(struct context *context,
64 struct netlbl_lsm_secattr *secattr);
65 int mls_import_netlbl_cat(struct context *context,
66 struct netlbl_lsm_secattr *secattr);
67 #else
mls_export_netlbl_lvl(struct context * context,struct netlbl_lsm_secattr * secattr)68 static inline void mls_export_netlbl_lvl(struct context *context,
69 struct netlbl_lsm_secattr *secattr)
70 {
71 return;
72 }
mls_import_netlbl_lvl(struct context * context,struct netlbl_lsm_secattr * secattr)73 static inline void mls_import_netlbl_lvl(struct context *context,
74 struct netlbl_lsm_secattr *secattr)
75 {
76 return;
77 }
mls_export_netlbl_cat(struct context * context,struct netlbl_lsm_secattr * secattr)78 static inline int mls_export_netlbl_cat(struct context *context,
79 struct netlbl_lsm_secattr *secattr)
80 {
81 return -ENOMEM;
82 }
mls_import_netlbl_cat(struct context * context,struct netlbl_lsm_secattr * secattr)83 static inline int mls_import_netlbl_cat(struct context *context,
84 struct netlbl_lsm_secattr *secattr)
85 {
86 return -ENOMEM;
87 }
88 #endif
89
90 #endif /* _SS_MLS_H */
91
92