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/*
* 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
*
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
*/
#ifndef _SS_MLS_H_
#define _SS_MLS_H_
#include "context.h"
#include "policydb.h"
/*
* Copies the MLS range from `src' into `dst'.
*/
static inline int mls_copy_context(struct context *dst,
struct context *src)
{
int l, rc = 0;
/* Copy the MLS range from the source context */
for (l = 0; l < 2; l++) {
dst->range.level[l].sens = src->range.level[l].sens;
rc = ebitmap_cpy(&dst->range.level[l].cat,
&src->range.level[l].cat);
if (rc)
break;
}
return rc;
}
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_context_to_sid(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);
void mls_export_lvl(const struct context *context, u32 *low, u32 *high);
void mls_import_lvl(struct context *context, u32 low, u32 high);
int mls_export_cat(const struct context *context,
unsigned char **low,
size_t *low_len,
unsigned char **high,
size_t *high_len);
int mls_import_cat(struct context *context,
const unsigned char *low,
size_t low_len,
const unsigned char *high,
size_t high_len);
#endif /* _SS_MLS_H */
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