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mls.h
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1 /*
2  * Multi-level security (MLS) policy operations.
3  *
4  * Author : Stephen Smalley, <[email protected]>
5  */
6 /*
7  * Updated: Trusted Computer Solutions, Inc. <[email protected]>
8  *
9  * Support for enhanced MLS infrastructure.
10  *
11  * Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
12  */
13 /*
14  * Updated: Hewlett-Packard <[email protected]>
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
68 static inline void mls_export_netlbl_lvl(struct context *context,
69  struct netlbl_lsm_secattr *secattr)
70 {
71  return;
72 }
73 static inline void mls_import_netlbl_lvl(struct context *context,
74  struct netlbl_lsm_secattr *secattr)
75 {
76  return;
77 }
78 static inline int mls_export_netlbl_cat(struct context *context,
79  struct netlbl_lsm_secattr *secattr)
80 {
81  return -ENOMEM;
82 }
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 
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