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expand.h
/* 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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