1 /* init.c - initialize bdb backend */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2009 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>
31 static const struct bdbi_database {
36 } bdbi_databases[] = {
37 { "id2entry" BDB_SUFFIX, BER_BVC("id2entry"), DB_BTREE, 0 },
38 { "dn2id" BDB_SUFFIX, BER_BVC("dn2id"), DB_BTREE, 0 },
39 { NULL, BER_BVNULL, 0, 0 }
42 typedef void * db_malloc(size_t);
43 typedef void * db_realloc(void *, size_t);
45 #define bdb_db_init BDB_SYMBOL(db_init)
46 #define bdb_db_open BDB_SYMBOL(db_open)
47 #define bdb_db_close BDB_SYMBOL(db_close)
50 bdb_db_init( BackendDB *be, ConfigReply *cr )
55 Debug( LDAP_DEBUG_TRACE,
56 LDAP_XSTRING(bdb_db_init) ": Initializing " BDB_UCTYPE " database\n",
59 /* allocate backend-database-specific stuff */
60 bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
62 /* DBEnv parameters */
63 bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
64 bdb->bi_dbenv_xflags = DB_TIME_NOTGRANTED;
65 bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
67 bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
68 bdb->bi_cache.c_minfree = 1;
70 bdb->bi_lock_detect = DB_LOCK_DEFAULT;
71 bdb->bi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
72 bdb->bi_search_stack = NULL;
74 ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
75 ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
77 ldap_pvt_thread_mutex_init( &bdb->bi_modrdns_mutex );
79 ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_lru_mutex );
80 ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_count_mutex );
81 ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_eifree_mutex );
82 ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_dntree.bei_kids_mutex );
83 ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
84 ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
85 ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
88 be->be_cf_ocs = be->bd_info->bi_cf_ocs;
90 #ifndef BDB_MULTIPLE_SUFFIXES
91 SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_ONE_SUFFIX;
94 rc = bdb_monitor_db_init( be );
100 bdb_db_close( BackendDB *be, ConfigReply *cr );
103 bdb_db_open( BackendDB *be, ConfigReply *cr )
106 struct bdb_info *bdb = (struct bdb_info *) be->be_private;
107 struct stat stat1, stat2;
109 char path[MAXPATHLEN];
112 int do_recover = 0, do_alock_recover = 0;
113 int alockt, quick = 0;
116 if ( be->be_suffix == NULL ) {
117 Debug( LDAP_DEBUG_ANY,
118 LDAP_XSTRING(bdb_db_open) ": need suffix.\n",
123 Debug( LDAP_DEBUG_ARGS,
124 LDAP_XSTRING(bdb_db_open) ": \"%s\"\n",
125 be->be_suffix[0].bv_val, 0, 0 );
127 /* Check existence of dbenv_home. Any error means trouble */
128 rc = stat( bdb->bi_dbenv_home, &stat1 );
130 Debug( LDAP_DEBUG_ANY,
131 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
132 "cannot access database directory \"%s\" (%d).\n",
133 be->be_suffix[0].bv_val, bdb->bi_dbenv_home, errno );
137 /* Perform database use arbitration/recovery logic */
138 alockt = (slapMode & SLAP_TOOL_READONLY) ? ALOCK_LOCKED : ALOCK_UNIQUE;
139 if ( slapMode & SLAP_TOOL_QUICK ) {
140 alockt |= ALOCK_NOSAVE;
144 rc = alock_open( &bdb->bi_alock_info,
146 bdb->bi_dbenv_home, alockt );
148 /* alockt is TRUE if the existing environment was created in Quick mode */
149 alockt = (rc & ALOCK_NOSAVE) ? 1 : 0;
152 if( rc == ALOCK_RECOVER ) {
153 Debug( LDAP_DEBUG_ANY,
154 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
155 "unclean shutdown detected; attempting recovery.\n",
156 be->be_suffix[0].bv_val, 0, 0 );
157 do_alock_recover = 1;
158 do_recover = DB_RECOVER;
159 } else if( rc == ALOCK_BUSY ) {
160 Debug( LDAP_DEBUG_ANY,
161 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
162 "database already in use.\n",
163 be->be_suffix[0].bv_val, 0, 0 );
165 } else if( rc != ALOCK_CLEAN ) {
166 Debug( LDAP_DEBUG_ANY,
167 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
168 "alock package is unstable.\n",
169 be->be_suffix[0].bv_val, 0, 0 );
172 if ( rc == ALOCK_CLEAN )
173 be->be_flags |= SLAP_DBFLAG_CLEAN;
176 * The DB_CONFIG file may have changed. If so, recover the
177 * database so that new settings are put into effect. Also
178 * note the possible absence of DB_CONFIG in the log.
180 if( stat( bdb->bi_db_config_path, &stat1 ) == 0 ) {
182 char *ptr = lutil_strcopy(path, bdb->bi_dbenv_home);
183 *ptr++ = LDAP_DIRSEP[0];
184 strcpy( ptr, "__db.001" );
185 if( stat( path, &stat2 ) == 0 ) {
186 if( stat2.st_mtime < stat1.st_mtime ) {
187 Debug( LDAP_DEBUG_ANY,
188 LDAP_XSTRING(bdb_db_open) ": DB_CONFIG for suffix \"%s\" has changed.\n",
189 be->be_suffix[0].bv_val, 0, 0 );
191 Debug( LDAP_DEBUG_ANY,
192 "Cannot use Quick mode; perform manual recovery first.\n",
194 slapMode ^= SLAP_TOOL_QUICK;
198 Debug( LDAP_DEBUG_ANY,
199 "Performing database recovery to activate new settings.\n",
202 do_recover = DB_RECOVER;
208 Debug( LDAP_DEBUG_ANY,
209 LDAP_XSTRING(bdb_db_open) ": warning - no DB_CONFIG file found "
210 "in directory %s: (%d).\n"
211 "Expect poor performance for suffix \"%s\".\n",
212 bdb->bi_dbenv_home, errno, be->be_suffix[0].bv_val );
215 /* Always let slapcat run, regardless of environment state.
216 * This can be used to cause a cache flush after an unclean
219 if ( do_recover && ( slapMode & SLAP_TOOL_READONLY )) {
220 Debug( LDAP_DEBUG_ANY,
221 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
222 "recovery skipped in read-only mode. "
223 "Run manual recovery if errors are encountered.\n",
224 be->be_suffix[0].bv_val, 0, 0 );
226 do_alock_recover = 0;
230 /* An existing environment in Quick mode has nothing to recover. */
231 if ( alockt && do_recover ) {
232 Debug( LDAP_DEBUG_ANY,
233 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
234 "cannot recover, database must be reinitialized.\n",
235 be->be_suffix[0].bv_val, 0, 0 );
240 rc = db_env_create( &bdb->bi_dbenv, 0 );
242 Debug( LDAP_DEBUG_ANY,
243 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
244 "db_env_create failed: %s (%d).\n",
245 be->be_suffix[0].bv_val, db_strerror(rc), rc );
250 strcpy( path, bdb->bi_dbenv_home );
254 dbhome = bdb->bi_dbenv_home;
257 /* If existing environment is clean but doesn't support
258 * currently requested modes, remove it.
260 if ( !do_recover && ( alockt ^ quick )) {
262 rc = bdb->bi_dbenv->remove( bdb->bi_dbenv, dbhome, DB_FORCE );
264 Debug( LDAP_DEBUG_ANY,
265 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
266 "dbenv remove failed: %s (%d).\n",
267 be->be_suffix[0].bv_val, db_strerror(rc), rc );
268 bdb->bi_dbenv = NULL;
271 rc = db_env_create( &bdb->bi_dbenv, 0 );
273 Debug( LDAP_DEBUG_ANY,
274 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
275 "db_env_create failed: %s (%d).\n",
276 be->be_suffix[0].bv_val, db_strerror(rc), rc );
281 bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
282 bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
284 bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
286 if ( !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
287 rc = bdb->bi_dbenv->set_encrypt( bdb->bi_dbenv, bdb->bi_db_crypt_key.bv_val,
290 Debug( LDAP_DEBUG_ANY,
291 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
292 "dbenv set_encrypt failed: %s (%d).\n",
293 be->be_suffix[0].bv_val, db_strerror(rc), rc );
298 /* One long-lived TXN per thread, two TXNs per write op */
299 bdb->bi_dbenv->set_tx_max( bdb->bi_dbenv, connection_pool_max * 3 );
301 if( bdb->bi_dbenv_xflags != 0 ) {
302 rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
303 bdb->bi_dbenv_xflags, 1);
305 Debug( LDAP_DEBUG_ANY,
306 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
307 "dbenv_set_flags failed: %s (%d).\n",
308 be->be_suffix[0].bv_val, db_strerror(rc), rc );
313 #define BDB_TXN_FLAGS (DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN)
315 Debug( LDAP_DEBUG_TRACE,
316 LDAP_XSTRING(bdb_db_open) ": database \"%s\": "
318 be->be_suffix[0].bv_val, bdb->bi_dbenv_home, 0);
320 flags = DB_INIT_MPOOL | DB_CREATE | DB_THREAD;
323 flags |= BDB_TXN_FLAGS;
325 /* If a key was set, use shared memory for the BDB environment */
326 if ( bdb->bi_shm_key ) {
327 bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
328 flags |= DB_SYSTEM_MEM;
330 rc = (bdb->bi_dbenv->open)( bdb->bi_dbenv, dbhome,
331 flags | do_recover, bdb->bi_dbenv_mode );
334 /* Regular open failed, probably a missing shm environment.
335 * Start over, do a recovery.
337 if ( !do_recover && bdb->bi_shm_key && do_retry ) {
338 bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
339 rc = db_env_create( &bdb->bi_dbenv, 0 );
341 Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_db_open)
342 ": database \"%s\": "
343 "shared memory env open failed, assuming stale env.\n",
344 be->be_suffix[0].bv_val, 0, 0 );
349 Debug( LDAP_DEBUG_ANY,
350 LDAP_XSTRING(bdb_db_open) ": database \"%s\" cannot be %s, err %d. "
351 "Restore from backup!\n",
352 be->be_suffix[0].bv_val, do_recover ? "recovered" : "opened", rc );
356 if ( do_alock_recover && alock_recover (&bdb->bi_alock_info) != 0 ) {
357 Debug( LDAP_DEBUG_ANY,
358 LDAP_XSTRING(bdb_db_open) ": database \"%s\": alock_recover failed\n",
359 be->be_suffix[0].bv_val, 0, 0 );
364 #ifdef SLAP_ZONE_ALLOC
365 if ( bdb->bi_cache.c_maxsize ) {
366 bdb->bi_cache.c_zctx = slap_zn_mem_create(
367 SLAP_ZONE_INITSIZE, SLAP_ZONE_MAXSIZE,
368 SLAP_ZONE_DELTA, SLAP_ZONE_SIZE);
372 /* Default dncache to 2x entrycache */
373 if ( bdb->bi_cache.c_maxsize && !bdb->bi_cache.c_eimax ) {
374 bdb->bi_cache.c_eimax = bdb->bi_cache.c_maxsize * 2;
377 /* dncache must be >= entrycache */
378 if ( bdb->bi_cache.c_eimax < bdb->bi_cache.c_maxsize ) {
379 bdb->bi_cache.c_eimax = bdb->bi_cache.c_maxsize;
382 if ( bdb->bi_idl_cache_max_size ) {
383 bdb->bi_idl_tree = NULL;
384 bdb->bi_idl_cache_size = 0;
387 flags = DB_THREAD | bdb->bi_db_opflags;
389 #ifdef DB_AUTO_COMMIT
391 flags |= DB_AUTO_COMMIT;
394 bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
395 BDB_INDICES * sizeof(struct bdb_db_info *) );
397 /* open (and create) main database */
398 for( i = 0; bdbi_databases[i].name.bv_val; i++ ) {
399 struct bdb_db_info *db;
401 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
403 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
405 snprintf(cr->msg, sizeof(cr->msg),
406 "database \"%s\": db_create(%s) failed: %s (%d).",
407 be->be_suffix[0].bv_val,
408 bdb->bi_dbenv_home, db_strerror(rc), rc );
409 Debug( LDAP_DEBUG_ANY,
410 LDAP_XSTRING(bdb_db_open) ": %s\n",
415 if( !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
416 rc = db->bdi_db->set_flags( db->bdi_db, DB_ENCRYPT );
418 snprintf(cr->msg, sizeof(cr->msg),
419 "database \"%s\": db set_flags(DB_ENCRYPT)(%s) failed: %s (%d).",
420 be->be_suffix[0].bv_val,
421 bdb->bi_dbenv_home, db_strerror(rc), rc );
422 Debug( LDAP_DEBUG_ANY,
423 LDAP_XSTRING(bdb_db_open) ": %s\n",
429 if( bdb->bi_flags & BDB_CHKSUM ) {
430 rc = db->bdi_db->set_flags( db->bdi_db, DB_CHKSUM );
432 snprintf(cr->msg, sizeof(cr->msg),
433 "database \"%s\": db set_flags(DB_CHKSUM)(%s) failed: %s (%d).",
434 be->be_suffix[0].bv_val,
435 bdb->bi_dbenv_home, db_strerror(rc), rc );
436 Debug( LDAP_DEBUG_ANY,
437 LDAP_XSTRING(bdb_db_open) ": %s\n",
443 rc = bdb_db_findsize( bdb, (struct berval *)&bdbi_databases[i].name );
445 if( i == BDB_ID2ENTRY ) {
446 if ( !rc ) rc = BDB_ID2ENTRY_PAGESIZE;
447 rc = db->bdi_db->set_pagesize( db->bdi_db, rc );
449 if ( slapMode & SLAP_TOOL_MODE )
450 db->bdi_db->mpf->set_priority( db->bdi_db->mpf,
451 DB_PRIORITY_VERY_LOW );
453 if ( slapMode & SLAP_TOOL_READMAIN ) {
459 /* Use FS default size if not configured */
461 rc = db->bdi_db->set_pagesize( db->bdi_db, rc );
463 rc = db->bdi_db->set_flags( db->bdi_db,
464 DB_DUP | DB_DUPSORT );
466 if ( slapMode & SLAP_TOOL_READONLY ) {
472 rc = db->bdi_db->set_dup_compare( db->bdi_db,
474 if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
483 strcpy( path, bdbi_databases[i].file );
485 rc = DB_OPEN( db->bdi_db,
487 /* bdbi_databases[i].name, */ NULL,
488 bdbi_databases[i].type,
489 bdbi_databases[i].flags | flags,
490 bdb->bi_dbenv_mode );
492 rc = DB_OPEN( db->bdi_db,
493 bdbi_databases[i].file,
494 /* bdbi_databases[i].name, */ NULL,
495 bdbi_databases[i].type,
496 bdbi_databases[i].flags | flags,
497 bdb->bi_dbenv_mode );
501 snprintf( cr->msg, sizeof(cr->msg), "database \"%s\": "
502 "db_open(%s/%s) failed: %s (%d).",
503 be->be_suffix[0].bv_val,
504 bdb->bi_dbenv_home, bdbi_databases[i].file,
505 db_strerror(rc), rc );
506 Debug( LDAP_DEBUG_ANY,
507 LDAP_XSTRING(bdb_db_open) ": %s\n",
509 db->bdi_db->close( db->bdi_db, 0 );
513 flags &= ~(DB_CREATE | DB_RDONLY);
514 db->bdi_name = bdbi_databases[i].name;
515 bdb->bi_databases[i] = db;
518 bdb->bi_databases[i] = NULL;
519 bdb->bi_ndatabases = i;
522 rc = bdb_last_id( be, NULL );
524 snprintf( cr->msg, sizeof(cr->msg), "database \"%s\": "
525 "last_id(%s) failed: %s (%d).",
526 be->be_suffix[0].bv_val, bdb->bi_dbenv_home,
527 db_strerror(rc), rc );
528 Debug( LDAP_DEBUG_ANY,
529 LDAP_XSTRING(bdb_db_open) ": %s\n",
535 TXN_BEGIN(bdb->bi_dbenv, NULL, &bdb->bi_cache.c_txn, DB_READ_COMMITTED | DB_TXN_NOWAIT);
538 entry_prealloc( bdb->bi_cache.c_maxsize );
539 attr_prealloc( bdb->bi_cache.c_maxsize * 20 );
541 /* setup for empty-DN contexts */
542 if ( BER_BVISEMPTY( &be->be_nsuffix[0] )) {
543 rc = bdb_id2entry( be, NULL, 0, &e );
546 struct berval gluebv = BER_BVC("glue");
551 ber_dupbv( &e->e_name, (struct berval *)&slap_empty_bv );
552 ber_dupbv( &e->e_nname, (struct berval *)&slap_empty_bv );
553 attr_merge_one( e, slap_schema.si_ad_objectClass,
555 attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
560 op.o_dn = be->be_rootdn;
561 op.o_ndn = be->be_rootndn;
562 slap_add_opattrs( &op, NULL, NULL, 0, 0 );
564 e->e_ocflags = SLAP_OC_GLUE|SLAP_OC__END;
565 e->e_private = &bdb->bi_cache.c_dntree;
566 bdb->bi_cache.c_dntree.bei_e = e;
569 rc = bdb_monitor_db_open( be );
574 bdb->bi_flags |= BDB_IS_OPEN;
579 bdb_db_close( be, NULL );
584 bdb_db_close( BackendDB *be, ConfigReply *cr )
587 struct bdb_info *bdb = (struct bdb_info *) be->be_private;
588 struct bdb_db_info *db;
589 bdb_idl_cache_entry_t *entry, *next_entry;
591 /* monitor handling */
592 (void)bdb_monitor_db_close( be );
595 Entry *e = bdb->bi_cache.c_dntree.bei_e;
597 bdb->bi_cache.c_dntree.bei_e = NULL;
599 bdb_entry_return( e );
603 bdb->bi_flags &= ~BDB_IS_OPEN;
605 ber_bvarray_free( bdb->bi_db_config );
606 bdb->bi_db_config = NULL;
608 if( bdb->bi_dbenv ) {
609 /* Free cache locker if we enabled locking.
610 * TXNs must all be closed before DBs...
612 if ( !( slapMode & SLAP_TOOL_QUICK ) && bdb->bi_cache.c_txn ) {
613 TXN_ABORT( bdb->bi_cache.c_txn );
614 bdb->bi_cache.c_txn = NULL;
616 bdb_reader_flush( bdb->bi_dbenv );
619 while( bdb->bi_databases && bdb->bi_ndatabases-- ) {
620 db = bdb->bi_databases[bdb->bi_ndatabases];
621 rc = db->bdi_db->close( db->bdi_db, 0 );
622 /* Lower numbered names are not strdup'd */
623 if( bdb->bi_ndatabases >= BDB_NDB )
624 free( db->bdi_name.bv_val );
627 free( bdb->bi_databases );
628 bdb->bi_databases = NULL;
630 bdb_cache_release_all (&bdb->bi_cache);
632 if ( bdb->bi_idl_cache_size ) {
633 avl_free( bdb->bi_idl_tree, NULL );
634 bdb->bi_idl_tree = NULL;
635 entry = bdb->bi_idl_lru_head;
637 next_entry = entry->idl_lru_next;
640 free( entry->kstr.bv_val );
643 } while ( entry != bdb->bi_idl_lru_head );
644 bdb->bi_idl_lru_head = bdb->bi_idl_lru_tail = NULL;
647 /* close db environment */
648 if( bdb->bi_dbenv ) {
649 /* force a checkpoint, but not if we were ReadOnly,
650 * and not in Quick mode since there are no transactions there.
652 if ( !( slapMode & ( SLAP_TOOL_QUICK|SLAP_TOOL_READONLY ))) {
653 rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
655 Debug( LDAP_DEBUG_ANY,
656 "bdb_db_close: database \"%s\": "
657 "txn_checkpoint failed: %s (%d).\n",
658 be->be_suffix[0].bv_val, db_strerror(rc), rc );
662 rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
663 bdb->bi_dbenv = NULL;
665 Debug( LDAP_DEBUG_ANY,
666 "bdb_db_close: database \"%s\": "
667 "close failed: %s (%d)\n",
668 be->be_suffix[0].bv_val, db_strerror(rc), rc );
673 rc = alock_close( &bdb->bi_alock_info, slapMode & SLAP_TOOL_QUICK );
675 Debug( LDAP_DEBUG_ANY,
676 "bdb_db_close: database \"%s\": alock_close failed\n",
677 be->be_suffix[0].bv_val, 0, 0 );
685 bdb_db_destroy( BackendDB *be, ConfigReply *cr )
687 struct bdb_info *bdb = (struct bdb_info *) be->be_private;
689 /* stop and remove checkpoint task */
690 if ( bdb->bi_txn_cp_task ) {
691 struct re_s *re = bdb->bi_txn_cp_task;
692 bdb->bi_txn_cp_task = NULL;
693 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
694 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
695 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
696 ldap_pvt_runqueue_remove( &slapd_rq, re );
697 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
700 /* monitor handling */
701 (void)bdb_monitor_db_destroy( be );
703 if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
704 if( bdb->bi_db_config_path ) ch_free( bdb->bi_db_config_path );
706 bdb_attr_index_destroy( bdb );
708 ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
709 ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_lru_mutex );
710 ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_count_mutex );
711 ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_eifree_mutex );
712 ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_dntree.bei_kids_mutex );
714 ldap_pvt_thread_mutex_destroy( &bdb->bi_modrdns_mutex );
716 ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
717 ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
718 ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
719 ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
722 be->be_private = NULL;
733 static char *controls[] = {
735 LDAP_CONTROL_MANAGEDSAIT,
737 LDAP_CONTROL_PAGEDRESULTS,
738 LDAP_CONTROL_PRE_READ,
739 LDAP_CONTROL_POST_READ,
740 LDAP_CONTROL_SUBENTRIES,
741 LDAP_CONTROL_X_PERMISSIVE_MODIFY,
743 LDAP_CONTROL_X_TXN_SPEC,
748 /* initialize the underlying database system */
749 Debug( LDAP_DEBUG_TRACE,
750 LDAP_XSTRING(bdb_back_initialize) ": initialize "
751 BDB_UCTYPE " backend\n", 0, 0, 0 );
754 SLAP_BFLAG_INCREMENT |
755 SLAP_BFLAG_SUBENTRIES |
757 SLAP_BFLAG_REFERRALS;
759 bi->bi_controls = controls;
761 { /* version check */
762 int major, minor, patch, ver;
763 char *version = db_version( &major, &minor, &patch );
767 /* All our stdio does an ASCII to EBCDIC conversion on
768 * the output. Strings from the BDB library are already
769 * in EBCDIC; we have to go back and forth...
771 strcpy( v2, version );
776 ver = (major << 24) | (minor << 16) | patch;
777 if( ver != DB_VERSION_FULL ) {
778 /* fail if a versions don't match */
779 Debug( LDAP_DEBUG_ANY,
780 LDAP_XSTRING(bdb_back_initialize) ": "
781 "BDB library version mismatch:"
782 " expected " DB_VERSION_STRING ","
783 " got %s\n", version, 0, 0 );
787 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_back_initialize)
788 ": %s\n", version, 0, 0 );
791 db_env_set_func_free( ber_memfree );
792 db_env_set_func_malloc( (db_malloc *)ber_memalloc );
793 db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
794 #if !defined(NO_THREAD) && DB_VERSION_FULL <= 0x04070000
795 /* This is a no-op on a NO_THREAD build. Leave the default
796 * alone so that BDB will sleep on interprocess conflicts.
797 * Don't bother on BDB 4.7...
799 db_env_set_func_yield( ldap_pvt_thread_yield );
807 bi->bi_db_init = bdb_db_init;
808 bi->bi_db_config = config_generic_wrapper;
809 bi->bi_db_open = bdb_db_open;
810 bi->bi_db_close = bdb_db_close;
811 bi->bi_db_destroy = bdb_db_destroy;
813 bi->bi_op_add = bdb_add;
814 bi->bi_op_bind = bdb_bind;
815 bi->bi_op_compare = bdb_compare;
816 bi->bi_op_delete = bdb_delete;
817 bi->bi_op_modify = bdb_modify;
818 bi->bi_op_modrdn = bdb_modrdn;
819 bi->bi_op_search = bdb_search;
821 bi->bi_op_unbind = 0;
823 bi->bi_extended = bdb_extended;
825 bi->bi_chk_referrals = bdb_referrals;
826 bi->bi_operational = bdb_operational;
827 bi->bi_has_subordinates = bdb_hasSubordinates;
828 bi->bi_entry_release_rw = bdb_entry_release;
829 bi->bi_entry_get_rw = bdb_entry_get;
832 * hooks for slap tools
834 bi->bi_tool_entry_open = bdb_tool_entry_open;
835 bi->bi_tool_entry_close = bdb_tool_entry_close;
836 bi->bi_tool_entry_first = bdb_tool_entry_next;
837 bi->bi_tool_entry_next = bdb_tool_entry_next;
838 bi->bi_tool_entry_get = bdb_tool_entry_get;
839 bi->bi_tool_entry_put = bdb_tool_entry_put;
840 bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
841 bi->bi_tool_sync = 0;
842 bi->bi_tool_dn2id_get = bdb_tool_dn2id_get;
843 bi->bi_tool_entry_modify = bdb_tool_entry_modify;
845 bi->bi_connection_init = 0;
846 bi->bi_connection_destroy = 0;
848 rc = bdb_back_init_cf( bi );
853 #if (SLAPD_BDB == SLAPD_MOD_DYNAMIC && !defined(BDB_HIER)) || \
854 (SLAPD_HDB == SLAPD_MOD_DYNAMIC && defined(BDB_HIER))
856 /* conditionally define the init_module() function */
858 SLAP_BACKEND_INIT_MODULE( hdb )
859 #else /* !BDB_HIER */
860 SLAP_BACKEND_INIT_MODULE( bdb )
861 #endif /* !BDB_HIER */
863 #endif /* SLAPD_[BH]DB == SLAPD_MOD_DYNAMIC */