1 /* init.c - initialize mdb backend */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2011 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
20 #include <ac/string.h>
21 #include <ac/unistd.h>
22 #include <ac/stdlib.h>
30 static const struct berval mdmi_databases[] = {
38 mdb_db_init( BackendDB *be, ConfigReply *cr )
43 Debug( LDAP_DEBUG_TRACE,
44 LDAP_XSTRING(mdb_db_init) ": Initializing mdb database\n",
47 /* allocate backend-database-specific stuff */
48 mdb = (struct mdb_info *) ch_calloc( 1, sizeof(struct mdb_info) );
50 /* DBEnv parameters */
51 mdb->mi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
52 mdb->mi_dbenv_flags = 0;
53 mdb->mi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
55 mdb->mi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
56 mdb->mi_search_stack = NULL;
58 mdb->mi_mapsize = DEFAULT_MAPSIZE;
61 be->be_cf_ocs = be->bd_info->bi_cf_ocs;
63 #ifndef MDB_MULTIPLE_SUFFIXES
64 SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_ONE_SUFFIX;
67 rc = mdb_monitor_db_init( be );
73 mdb_db_close( BackendDB *be, ConfigReply *cr );
76 mdb_db_open( BackendDB *be, ConfigReply *cr )
79 struct mdb_info *mdb = (struct mdb_info *) be->be_private;
85 if ( be->be_suffix == NULL ) {
86 Debug( LDAP_DEBUG_ANY,
87 LDAP_XSTRING(mdb_db_open) ": need suffix.\n",
92 Debug( LDAP_DEBUG_ARGS,
93 LDAP_XSTRING(mdb_db_open) ": \"%s\"\n",
94 be->be_suffix[0].bv_val, 0, 0 );
96 /* Check existence of dbenv_home. Any error means trouble */
97 rc = stat( mdb->mi_dbenv_home, &stat1 );
99 Debug( LDAP_DEBUG_ANY,
100 LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
101 "cannot access database directory \"%s\" (%d).\n",
102 be->be_suffix[0].bv_val, mdb->mi_dbenv_home, errno );
106 /* mdb is always clean */
107 be->be_flags |= SLAP_DBFLAG_CLEAN;
109 rc = mdb_env_create( &mdb->mi_dbenv );
111 Debug( LDAP_DEBUG_ANY,
112 LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
113 "mdb_env_create failed: %s (%d).\n",
114 be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
118 rc = mdb_env_set_mapsize( mdb->mi_dbenv, mdb->mi_mapsize );
120 Debug( LDAP_DEBUG_ANY,
121 LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
122 "mdb_env_set_mapsize failed: %s (%d).\n",
123 be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
127 rc = mdb_env_set_maxdbs( mdb->mi_dbenv, MDB_INDICES );
129 Debug( LDAP_DEBUG_ANY,
130 LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
131 "mdb_env_set_maxdbs failed: %s (%d).\n",
132 be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
137 strcpy( path, mdb->mi_dbenv_home );
141 dbhome = mdb->mi_dbenv_home;
144 Debug( LDAP_DEBUG_TRACE,
145 LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
147 be->be_suffix[0].bv_val, mdb->mi_dbenv_home, 0);
149 flags = mdb->mi_dbenv_flags;
151 if ( slapMode & SLAP_TOOL_QUICK )
154 if ( slapMode & SLAP_TOOL_READONLY)
157 rc = mdb_env_open( mdb->mi_dbenv, dbhome,
158 flags, mdb->mi_dbenv_mode );
161 Debug( LDAP_DEBUG_ANY,
162 LDAP_XSTRING(mdb_db_open) ": database \"%s\" cannot be opened, err %d. "
163 "Restore from backup!\n",
164 be->be_suffix[0].bv_val, rc, 0 );
168 rc = mdb_txn_begin( mdb->mi_dbenv, 0, &txn );
170 Debug( LDAP_DEBUG_ANY,
171 LDAP_XSTRING(mdb_db_open) ": database \"%s\" cannot be opened, err %d. "
172 "Restore from backup!\n",
173 be->be_suffix[0].bv_val, rc, 0 );
177 /* open (and create) main databases */
178 for( i = 0; mdmi_databases[i].bv_val; i++ ) {
179 flags = MDB_INTEGERKEY;
180 if( i == MDB_ID2ENTRY ) {
181 if ( !(slapMode & (SLAP_TOOL_READMAIN|SLAP_TOOL_READONLY) ))
184 if ( i == MDB_DN2ID )
185 flags |= MDB_DUPSORT;
186 if ( !(slapMode & SLAP_TOOL_READONLY) )
191 mdmi_databases[i].bv_val,
196 snprintf( cr->msg, sizeof(cr->msg), "database \"%s\": "
197 "mdb_open(%s/%s) failed: %s (%d).",
198 be->be_suffix[0].bv_val,
199 mdb->mi_dbenv_home, mdmi_databases[i].bv_val,
200 mdb_strerror(rc), rc );
201 Debug( LDAP_DEBUG_ANY,
202 LDAP_XSTRING(mdb_db_open) ": %s\n",
207 if ( i == MDB_DN2ID )
208 mdb_set_dupsort( txn, mdb->mi_dbis[i], mdb_dup_compare );
212 rc = mdb_attr_dbs_open( be, txn, cr );
214 mdb_txn_abort( txn );
218 rc = mdb_txn_commit(txn);
224 rc = mdb_monitor_db_open( be );
229 mdb->mi_flags |= MDB_IS_OPEN;
234 mdb_db_close( be, NULL );
239 mdb_db_close( BackendDB *be, ConfigReply *cr )
242 struct mdb_info *mdb = (struct mdb_info *) be->be_private;
245 /* monitor handling */
246 (void)mdb_monitor_db_close( be );
248 mdb->mi_flags &= ~MDB_IS_OPEN;
250 if( mdb->mi_dbenv ) {
251 mdb_reader_flush( mdb->mi_dbenv );
254 if ( mdb->mi_dbenv ) {
255 if ( mdb->mi_dbis[0] ) {
257 rc = mdb_txn_begin( mdb->mi_dbenv, 1, &txn );
259 mdb_attr_dbs_close( mdb, txn );
260 for ( i=0; i<MDB_NDB; i++ )
261 mdb_close( txn, mdb->mi_dbis[i] );
263 mdb_txn_abort( txn );
266 rc = mdb_env_sync( mdb->mi_dbenv, 1 );
268 Debug( LDAP_DEBUG_ANY,
269 "mdb_db_close: database \"%s\": "
270 "mdb_env_sync failed: %s (%d).\n",
271 be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
275 mdb_env_close( mdb->mi_dbenv );
276 mdb->mi_dbenv = NULL;
283 mdb_db_destroy( BackendDB *be, ConfigReply *cr )
285 struct mdb_info *mdb = (struct mdb_info *) be->be_private;
287 /* stop and remove checkpoint task */
288 if ( mdb->mi_txn_cp_task ) {
289 struct re_s *re = mdb->mi_txn_cp_task;
290 mdb->mi_txn_cp_task = NULL;
291 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
292 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
293 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
294 ldap_pvt_runqueue_remove( &slapd_rq, re );
295 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
298 /* monitor handling */
299 (void)mdb_monitor_db_destroy( be );
301 if( mdb->mi_dbenv_home ) ch_free( mdb->mi_dbenv_home );
303 mdb_attr_index_destroy( mdb );
306 be->be_private = NULL;
317 static char *controls[] = {
319 LDAP_CONTROL_MANAGEDSAIT,
321 LDAP_CONTROL_PAGEDRESULTS,
322 LDAP_CONTROL_PRE_READ,
323 LDAP_CONTROL_POST_READ,
324 LDAP_CONTROL_SUBENTRIES,
325 LDAP_CONTROL_X_PERMISSIVE_MODIFY,
327 LDAP_CONTROL_X_TXN_SPEC,
332 /* initialize the underlying database system */
333 Debug( LDAP_DEBUG_TRACE,
334 LDAP_XSTRING(mdb_back_initialize) ": initialize "
335 MDB_UCTYPE " backend\n", 0, 0, 0 );
338 SLAP_BFLAG_INCREMENT |
339 SLAP_BFLAG_SUBENTRIES |
341 SLAP_BFLAG_REFERRALS;
343 bi->bi_controls = controls;
345 { /* version check */
346 int major, minor, patch, ver;
347 char *version = mdb_version( &major, &minor, &patch );
351 /* All our stdio does an ASCII to EBCDIC conversion on
352 * the output. Strings from the MDB library are already
353 * in EBCDIC; we have to go back and forth...
355 strcpy( v2, version );
359 ver = (major << 24) | (minor << 16) | patch;
360 if( ver != MDB_VERSION_FULL ) {
361 /* fail if a versions don't match */
362 Debug( LDAP_DEBUG_ANY,
363 LDAP_XSTRING(mdb_back_initialize) ": "
364 "MDB library version mismatch:"
365 " expected " MDB_VERSION_STRING ","
366 " got %s\n", version, 0, 0 );
370 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_back_initialize)
371 ": %s\n", version, 0, 0 );
379 bi->bi_db_init = mdb_db_init;
380 bi->bi_db_config = config_generic_wrapper;
381 bi->bi_db_open = mdb_db_open;
382 bi->bi_db_close = mdb_db_close;
383 bi->bi_db_destroy = mdb_db_destroy;
385 bi->bi_op_add = mdb_add;
386 bi->bi_op_bind = mdb_bind;
387 bi->bi_op_compare = mdb_compare;
388 bi->bi_op_delete = mdb_delete;
389 bi->bi_op_modify = mdb_modify;
390 bi->bi_op_modrdn = mdb_modrdn;
391 bi->bi_op_search = mdb_search;
393 bi->bi_op_unbind = 0;
395 bi->bi_extended = mdb_extended;
397 #if 0 /* FIXME: Redundant, why does this exist? */
398 bi->bi_chk_referrals = mdb_referrals;
400 bi->bi_operational = mdb_operational;
402 bi->bi_has_subordinates = mdb_hasSubordinates;
403 bi->bi_entry_release_rw = mdb_entry_release;
404 bi->bi_entry_get_rw = mdb_entry_get;
407 * hooks for slap tools
409 bi->bi_tool_entry_open = mdb_tool_entry_open;
410 bi->bi_tool_entry_close = mdb_tool_entry_close;
411 bi->bi_tool_entry_first = backend_tool_entry_first;
412 bi->bi_tool_entry_first_x = mdb_tool_entry_first_x;
413 bi->bi_tool_entry_next = mdb_tool_entry_next;
414 bi->bi_tool_entry_get = mdb_tool_entry_get;
415 bi->bi_tool_entry_put = mdb_tool_entry_put;
416 bi->bi_tool_entry_reindex = mdb_tool_entry_reindex;
417 bi->bi_tool_sync = 0;
418 bi->bi_tool_dn2id_get = mdb_tool_dn2id_get;
419 bi->bi_tool_entry_modify = mdb_tool_entry_modify;
421 bi->bi_connection_init = 0;
422 bi->bi_connection_destroy = 0;
424 rc = mdb_back_init_cf( bi );
429 #if (SLAPD_MDB == SLAPD_MOD_DYNAMIC)
431 SLAP_BACKEND_INIT_MODULE( mdb )
433 #endif /* SLAPD_MDB == SLAPD_MOD_DYNAMIC */