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/* Authors: Jason Tang <jtang@tresys.com>
* Joshua Brindle <jbrindle@tresys.com>
* Karl MacMillan <kmacmillan@tresys.com>
*
* A set of utility functions that aid policy decision when dealing
* with hierarchal items.
*
* Copyright (C) 2005 Tresys Technology, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _SEPOL_POLICYDB_EXPAND_H
#define _SEPOL_POLICYDB_EXPAND_H
#include <stddef.h>
#include <sepol/handle.h>
#include <sepol/policydb/conditional.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Expand only the avrules for a module. It is valid for this function
* to expand base into itself (i.e. base == out); the typemap for
* this special case should map type[i] to i+1. Likewise the boolmap
* should map bool[i] to i + 1. This function optionally expands
* neverallow rules. If neverallow rules are expanded, there is no
* need to copy them and doing so could cause duplicate entries when
* base == out. If the neverallow rules are not expanded, they are
* just copied to the destination policy so that assertion checking
* can be performed after expand. No assertion or hierarchy checking
* is performed by this function.
*/
extern int expand_module_avrules(sepol_handle_t * handle, policydb_t * base,
policydb_t * out, uint32_t * typemap, uint32_t * boolmap,
uint32_t * rolemap, uint32_t * usermap,
int verbose, int expand_neverallow);
/*
* Expand all parts of a module. Neverallow rules are not expanded (only
* copied). It is not valid to expand base into itself. If check is non-zero,
* performs hierarchy and assertion checking.
*/
extern int expand_module(sepol_handle_t * handle,
policydb_t * base, policydb_t * out,
int verbose, int check);
extern int convert_type_ebitmap(ebitmap_t * src, ebitmap_t * dst,
uint32_t * typemap);
extern int expand_convert_type_set(policydb_t * p, uint32_t * typemap,
type_set_t * set, ebitmap_t * types,
unsigned char alwaysexpand);
extern int type_set_expand(type_set_t * set, ebitmap_t * t, policydb_t * p,
unsigned char alwaysexpand);
extern int role_set_expand(role_set_t * x, ebitmap_t * r, policydb_t * out, policydb_t * base, uint32_t * rolemap);
extern int mls_semantic_level_expand(mls_semantic_level_t *sl, mls_level_t *l,
policydb_t *p, sepol_handle_t *h);
extern int mls_semantic_range_expand(mls_semantic_range_t *sr, mls_range_t *r,
policydb_t *p, sepol_handle_t *h);
extern int expand_rule(sepol_handle_t * handle,
policydb_t * source_pol,
avrule_t * source_rule, avtab_t * dest_avtab,
cond_av_list_t ** cond, cond_av_list_t ** other,
int enabled);
extern int expand_avtab(policydb_t * p, avtab_t * a, avtab_t * expa);
extern int expand_cond_av_list(policydb_t * p, cond_av_list_t * l,
cond_av_list_t ** newl, avtab_t * expa);
#ifdef __cplusplus
}
#endif
#endif
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