/*

 * Copyright (C) 2006 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

 */

/* Copyright (C) 2005 Red Hat, Inc. */

#ifndef _SEMANAGE_DATABASE_POLICYDB_INTERNAL_H_

#define _SEMANAGE_DATABASE_POLICYDB_INTERNAL_H_

#include <sepol/handle.h>

#include <sepol/policydb.h>

#include "database.h"

#include "handle.h"

struct dbase_policydb;

typedef struct dbase_policydb dbase_policydb_t;

typedef int (*record_policydb_table_add_t) (sepol_handle_t * h,

					    sepol_policydb_t * p,

					    const record_key_t * rkey,

					    const record_t * record);

typedef int (*record_policydb_table_modify_t) (sepol_handle_t * h,

					       sepol_policydb_t * p,

					       const record_key_t * rkey,

					       const record_t * record);

typedef int (*record_policydb_table_set_t) (sepol_handle_t * h,

					    sepol_policydb_t * p,

					    const record_key_t * rkey,

					    const record_t * record);

typedef int (*record_policydb_table_query_t) (sepol_handle_t * h,

					      const sepol_policydb_t * p,

					      const record_key_t * rkey,

					      record_t ** response);

typedef int (*record_policydb_table_count_t) (sepol_handle_t * h,

					      const sepol_policydb_t * p,

					      unsigned int *response);

typedef int (*record_policydb_table_exists_t) (sepol_handle_t * h,

					       const sepol_policydb_t * p,

					       const record_key_t * rkey,

					       int *response);

typedef int (*record_policydb_table_iterate_t) (sepol_handle_t * h,

						const sepol_policydb_t * p,

						int (*fn) (const record_t * r,

							   void *fn_arg),

						void *arg);

/* POLICYDB extension to RECORD interface - method table */

typedef struct record_policydb_table {

	/* Add policy record */

	record_policydb_table_add_t add;

	/* Modify policy record, or add if 

	 * the key isn't found */

	record_policydb_table_modify_t modify;

	/* Set policy record */

	record_policydb_table_set_t set;

	/* Query policy record  - return the record

	 * or NULL if it isn't found */

	record_policydb_table_query_t query;

	/* Count records */

	record_policydb_table_count_t count;

	/* Check if a record exists */

	record_policydb_table_exists_t exists;

	/* Iterate over records */

	record_policydb_table_iterate_t iterate;

} record_policydb_table_t;

/* Initialize database */

extern int dbase_policydb_init(semanage_handle_t * handle,

			       const char *path_ro,

			       const char *path_rw,

			       record_table_t * rtable,

			       record_policydb_table_t * rptable,

			       dbase_policydb_t ** dbase);

/* Attach to a shared policydb.

 * This implies drop_cache().

 * and prevents flush() and drop_cache()

 * until detached. */

extern void dbase_policydb_attach(dbase_policydb_t * dbase,

				  sepol_policydb_t * policydb);

/* Detach from a shared policdb.

 * This implies drop_cache. */

extern void dbase_policydb_detach(dbase_policydb_t * dbase);

/* Release allocated resources */

extern void dbase_policydb_release(dbase_policydb_t * dbase);

/* POLICYDB database - method table implementation */

extern dbase_table_t SEMANAGE_POLICYDB_DTABLE;

#endif