1/*
2 * Copyright (C) 2006 Tresys Technology, LLC
3 *
4 *  This library is free software; you can redistribute it and/or
5 *  modify it under the terms of the GNU Lesser General Public
6 *  License as published by the Free Software Foundation; either
7 *  version 2.1 of the License, or (at your option) any later version.
8 *
9 *  This library is distributed in the hope that it will be useful,
10 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 *  Lesser General Public License for more details.
13 *
14 *  You should have received a copy of the GNU Lesser General Public
15 *  License along with this library; if not, write to the Free Software
16 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17 */
18
19/* Copyright (C) 2005 Red Hat, Inc. */
20
21#ifndef _SEMANAGE_DATABASE_POLICYDB_INTERNAL_H_
22#define _SEMANAGE_DATABASE_POLICYDB_INTERNAL_H_
23
24#include <sepol/handle.h>
25#include <sepol/policydb.h>
26#include "database.h"
27#include "handle.h"
28
29struct dbase_policydb;
30typedef struct dbase_policydb dbase_policydb_t;
31
32typedef int (*record_policydb_table_add_t) (sepol_handle_t * h,
33					    sepol_policydb_t * p,
34					    const record_key_t * rkey,
35					    const record_t * record);
36
37typedef int (*record_policydb_table_modify_t) (sepol_handle_t * h,
38					       sepol_policydb_t * p,
39					       const record_key_t * rkey,
40					       const record_t * record);
41
42typedef int (*record_policydb_table_set_t) (sepol_handle_t * h,
43					    sepol_policydb_t * p,
44					    const record_key_t * rkey,
45					    const record_t * record);
46
47typedef int (*record_policydb_table_query_t) (sepol_handle_t * h,
48					      const sepol_policydb_t * p,
49					      const record_key_t * rkey,
50					      record_t ** response);
51
52typedef int (*record_policydb_table_count_t) (sepol_handle_t * h,
53					      const sepol_policydb_t * p,
54					      unsigned int *response);
55
56typedef int (*record_policydb_table_exists_t) (sepol_handle_t * h,
57					       const sepol_policydb_t * p,
58					       const record_key_t * rkey,
59					       int *response);
60
61typedef int (*record_policydb_table_iterate_t) (sepol_handle_t * h,
62						const sepol_policydb_t * p,
63						int (*fn) (const record_t * r,
64							   void *fn_arg),
65						void *arg);
66
67/* POLICYDB extension to RECORD interface - method table */
68typedef struct record_policydb_table {
69	/* Add policy record */
70	record_policydb_table_add_t add;
71	/* Modify policy record, or add if
72	 * the key isn't found */
73	record_policydb_table_modify_t modify;
74	/* Set policy record */
75	record_policydb_table_set_t set;
76	/* Query policy record  - return the record
77	 * or NULL if it isn't found */
78	record_policydb_table_query_t query;
79	/* Count records */
80	record_policydb_table_count_t count;
81	/* Check if a record exists */
82	record_policydb_table_exists_t exists;
83	/* Iterate over records */
84	record_policydb_table_iterate_t iterate;
85} record_policydb_table_t;
86
87/* Initialize database */
88extern int dbase_policydb_init(semanage_handle_t * handle,
89			       const char *path_ro,
90			       const char *path_rw,
91			       record_table_t * rtable,
92			       record_policydb_table_t * rptable,
93			       dbase_policydb_t ** dbase);
94
95/* Attach to a shared policydb.
96 * This implies drop_cache().
97 * and prevents flush() and drop_cache()
98 * until detached. */
99extern void dbase_policydb_attach(dbase_policydb_t * dbase,
100				  sepol_policydb_t * policydb);
101
102/* Detach from a shared policdb.
103 * This implies drop_cache. */
104extern void dbase_policydb_detach(dbase_policydb_t * dbase);
105
106/* Release allocated resources */
107extern void dbase_policydb_release(dbase_policydb_t * dbase);
108
109/* POLICYDB database - method table implementation */
110extern dbase_table_t SEMANAGE_POLICYDB_DTABLE;
111
112#endif
113