[mirror_ubuntu-zesty-kernel.git] / security / selinux / ss / mls.h

/*
 * Multi-level security (MLS) policy operations.
 *
 * Author : Stephen Smalley, <sds@epoch.ncsc.mil>
 */
/*
 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
 *
 *	Support for enhanced MLS infrastructure.
 *
 * Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
 */
/*
 * Updated: Hewlett-Packard <paul@paul-moore.com>
 *
 *	Added support to import/export the MLS label from NetLabel
 *
 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
 */

#ifndef _SS_MLS_H_
#define _SS_MLS_H_

#include "context.h"
#include "policydb.h"

int mls_compute_context_len(struct context *context);
void mls_sid_to_context(struct context *context, char **scontext);
int mls_context_isvalid(struct policydb *p, struct context *c);
int mls_range_isvalid(struct policydb *p, struct mls_range *r);
int mls_level_isvalid(struct policydb *p, struct mls_level *l);

int mls_context_to_sid(struct policydb *p,
		       char oldc,
		       char **scontext,
		       struct context *context,
		       struct sidtab *s,
		       u32 def_sid);

int mls_from_string(char *str, struct context *context, gfp_t gfp_mask);

int mls_range_set(struct context *context, struct mls_range *range);

int mls_convert_context(struct policydb *oldp,
			struct policydb *newp,
			struct context *context);

int mls_compute_sid(struct context *scontext,
		    struct context *tcontext,
		    u16 tclass,
		    u32 specified,
		    struct context *newcontext,
		    bool sock);

int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
			 struct context *usercon);

#ifdef CONFIG_NETLABEL
void mls_export_netlbl_lvl(struct context *context,
			   struct netlbl_lsm_secattr *secattr);
void mls_import_netlbl_lvl(struct context *context,
			   struct netlbl_lsm_secattr *secattr);
int mls_export_netlbl_cat(struct context *context,
			  struct netlbl_lsm_secattr *secattr);
int mls_import_netlbl_cat(struct context *context,
			  struct netlbl_lsm_secattr *secattr);
#else
static inline void mls_export_netlbl_lvl(struct context *context,
					 struct netlbl_lsm_secattr *secattr)
{
	return;
}
static inline void mls_import_netlbl_lvl(struct context *context,
					 struct netlbl_lsm_secattr *secattr)
{
	return;
}
static inline int mls_export_netlbl_cat(struct context *context,
					struct netlbl_lsm_secattr *secattr)
{
	return -ENOMEM;
}
static inline int mls_import_netlbl_cat(struct context *context,
					struct netlbl_lsm_secattr *secattr)
{
	return -ENOMEM;
}
#endif

#endif	/* _SS_MLS_H */
Commit	Line	Data
1da177e4 LT	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	*
376bd9cb	11	* Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
1da177e4	12	*/
7420ed23	13	/*
82c21bfa	14	* Updated: Hewlett-Packard <paul@paul-moore.com>
7420ed23	15	*
d497fc87	16	* Added support to import/export the MLS label from NetLabel
7420ed23 VY	17	*
	18	* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
	19	*/
1da177e4 LT	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);
45e5421e SS	30	int mls_range_isvalid(struct policydb p, struct mls_range r);
45e5421e SS	31	int mls_level_isvalid(struct policydb p, struct mls_level l);
1da177e4	32
12b29f34 SS	33	int mls_context_to_sid(struct policydb *p,
12b29f34 SS	34	char oldc,
d497fc87	35	char **scontext,
f5c1d5b2 JM	36	struct context *context,
	37	struct sidtab *s,
	38	u32 def_sid);
1da177e4	39
376bd9cb DG	40	int mls_from_string(char str, struct context context, gfp_t gfp_mask);
376bd9cb DG	41
0719aaf5 GT	42	int mls_range_set(struct context context, struct mls_range range);
0719aaf5 GT	43
1da177e4 LT	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,
6f5317e7 HC	52	struct context *newcontext,
6f5317e7 HC	53	bool sock);
1da177e4 LT	54
1da177e4 LT	55	int mls_setup_user_range(struct context fromcon, struct user_datum user,
d497fc87	56	struct context *usercon);
1da177e4	57
02752760 PM	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
7420ed23	89
1da177e4 LT	90	#endif /* _SS_MLS_H */
1da177e4 LT	91