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@paul-moore.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);
30int mls_range_isvalid(struct policydb *p, struct mls_range *r);
31int mls_level_isvalid(struct policydb *p, struct mls_level *l);
32
33int 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
40int mls_from_string(char *str, struct context *context, gfp_t gfp_mask);
41
42int mls_range_set(struct context *context, struct mls_range *range);
43
44int mls_convert_context(struct policydb *oldp,
45			struct policydb *newp,
46			struct context *context);
47
48int mls_compute_sid(struct context *scontext,
49		    struct context *tcontext,
50		    u16 tclass,
51		    u32 specified,
52		    struct context *newcontext,
53		    bool sock);
54
55int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
56			 struct context *usercon);
57
58#ifdef CONFIG_NETLABEL
59void mls_export_netlbl_lvl(struct context *context,
60			   struct netlbl_lsm_secattr *secattr);
61void mls_import_netlbl_lvl(struct context *context,
62			   struct netlbl_lsm_secattr *secattr);
63int mls_export_netlbl_cat(struct context *context,
64			  struct netlbl_lsm_secattr *secattr);
65int mls_import_netlbl_cat(struct context *context,
66			  struct netlbl_lsm_secattr *secattr);
67#else
68static inline void mls_export_netlbl_lvl(struct context *context,
69					 struct netlbl_lsm_secattr *secattr)
70{
71	return;
72}
73static inline void mls_import_netlbl_lvl(struct context *context,
74					 struct netlbl_lsm_secattr *secattr)
75{
76	return;
77}
78static inline int mls_export_netlbl_cat(struct context *context,
79					struct netlbl_lsm_secattr *secattr)
80{
81	return -ENOMEM;
82}
83static 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