root/security/selinux/ss/mls.h

INCLUDED FROM

DEFINITIONS

1. mls_export_netlbl_lvl
2. mls_import_netlbl_lvl
3. mls_export_netlbl_cat
4. mls_import_netlbl_cat

/*
 * 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.moore@hp.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_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);

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 */