git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/init.c

   1 /* init.c - initialize bdb backend */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2004 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  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>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/string.h>
  21 #include <ac/unistd.h>
  22 #include <ac/stdlib.h>
  23
  24 #include "back-bdb.h"
  25 #include "external.h"
  26 #include <lutil.h>
  27
  28 static const struct bdbi_database {
  29         char *file;
  30         char *name;
  31         int type;
  32         int flags;
  33 } bdbi_databases[] = {
  34         { "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
  35         { "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
  36         { NULL, NULL, 0, 0 }
  37 };
  38
  39 struct berval bdb_uuid = BER_BVNULL;
  40
  41 typedef void * db_malloc(size_t);
  42 typedef void * db_realloc(void *, size_t);
  43
  44 #if 0
  45 static int
  46 bdb_open( BackendInfo *bi )
  47 {
  48         return 0;
  49 }
  50
  51 static int
  52 bdb_destroy( BackendInfo *bi )
  53 {
  54         return 0;
  55 }
  56
  57 static int
  58 bdb_close( BackendInfo *bi )
  59 {
  60         /* terminate the underlying database system */
  61         return 0;
  62 }
  63 #endif
  64
  65 static int
  66 bdb_db_init( BackendDB *be )
  67 {
  68         struct bdb_info *bdb;
  69
  70 #ifdef NEW_LOGGING
  71         LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_init", 0, 0, 0 );
  72 #else
  73         Debug( LDAP_DEBUG_ANY,
  74                 "bdb_db_init: Initializing %s database\n",
  75                 be->bd_info->bi_type, 0, 0 );
  76 #endif
  77
  78         /* allocate backend-database-specific stuff */
  79         bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
  80
  81         /* DBEnv parameters */
  82         bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
  83         bdb->bi_dbenv_xflags = 0;
  84         bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
  85
  86         bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
  87
  88         bdb->bi_lock_detect = DB_LOCK_DEFAULT;
  89         bdb->bi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
  90         bdb->bi_search_stack = NULL;
  91
  92         LDAP_LIST_INIT (&bdb->bi_psearch_list);
  93
  94         ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
  95         ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
  96         ldap_pvt_thread_rdwr_init ( &bdb->bi_pslist_rwlock );
  97         ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_mutex );
  98         ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_dntree.bei_kids_mutex );
  99         ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
 100
 101         be->be_private = bdb;
 102
 103         return 0;
 104 }
 105
 106 int
 107 bdb_bt_compare(
 108         DB *db,
 109         const DBT *usrkey,
 110         const DBT *curkey )
 111 {
 112         unsigned char *u, *c;
 113         int i, x;
 114
 115         u = usrkey->data;
 116         c = curkey->data;
 117
 118 #ifdef WORDS_BIGENDIAN
 119         for( i = 0; i < (int)sizeof(ID); i++)
 120 #else
 121         for( i = sizeof(ID)-1; i >= 0; i--)
 122 #endif
 123         {
 124                 x = u[i] - c[i];
 125                 if( x ) return x;
 126         }
 127
 128         return 0;
 129 }
 130
 131 static int
 132 bdb_db_open( BackendDB *be )
 133 {
 134         int rc, i;
 135         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 136         u_int32_t flags;
 137 #ifdef HAVE_EBCDIC
 138         char path[MAXPATHLEN];
 139 #endif
 140
 141 #ifdef NEW_LOGGING
 142         LDAP_LOG( BACK_BDB, ARGS,
 143                 "bdb_db_open: %s\n", be->be_suffix[0].bv_val, 0, 0 );
 144 #else
 145         Debug( LDAP_DEBUG_ARGS,
 146                 "bdb_db_open: %s\n",
 147                 be->be_suffix[0].bv_val, 0, 0 );
 148 #endif
 149
 150 #ifndef BDB_MULTIPLE_SUFFIXES
 151         if ( be->be_suffix[1].bv_val ) {
 152 #ifdef NEW_LOGGING
 153         LDAP_LOG( BACK_BDB, ERR,
 154                 "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
 155 #else
 156         Debug( LDAP_DEBUG_ANY,
 157                 "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
 158 #endif
 159                 return -1;
 160         }
 161 #endif
 162         /* we should check existance of dbenv_home and db_directory */
 163
 164         rc = db_env_create( &bdb->bi_dbenv, 0 );
 165         if( rc != 0 ) {
 166 #ifdef NEW_LOGGING
 167                 LDAP_LOG( BACK_BDB, ERR,
 168                         "bdb_db_open: db_env_create failed: %s (%d)\n",
 169                         db_strerror(rc), rc, 0 );
 170 #else
 171                 Debug( LDAP_DEBUG_ANY,
 172                         "bdb_db_open: db_env_create failed: %s (%d)\n",
 173                         db_strerror(rc), rc, 0 );
 174 #endif
 175                 return rc;
 176         }
 177
 178         flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
 179                 | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN;
 180
 181 #if 0
 182         /* Never do automatic recovery, must perform it manually.
 183          * Otherwise restarting with gentlehup will corrupt the
 184          * database.
 185          */
 186         if( !(slapMode & SLAP_TOOL_MODE) ) flags |= DB_RECOVER;
 187 #endif
 188
 189         /* If a key was set, use shared memory for the BDB environment */
 190         if ( bdb->bi_shm_key ) {
 191                 bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
 192                 flags |= DB_SYSTEM_MEM;
 193         }
 194
 195         bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
 196         bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
 197         bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
 198
 199         /* One long-lived TXN per thread, two TXNs per write op */
 200         bdb->bi_dbenv->set_tx_max( bdb->bi_dbenv, connection_pool_max * 3 );
 201
 202         if ( bdb->bi_idl_cache_max_size ) {
 203                 bdb->bi_idl_tree = NULL;
 204                 ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
 205                 ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
 206                 bdb->bi_idl_cache_size = 0;
 207         }
 208
 209 #ifdef BDB_SUBDIRS
 210         {
 211                 char dir[MAXPATHLEN], *ptr;
 212
 213                 if (bdb->bi_dbenv_home[0] == '.') {
 214                         /* If home is a relative path, relative subdirs
 215                          * are just concat'd by BDB. We don't want the
 216                          * path to be concat'd twice, e.g.
 217                          * ./test-db/./test-db/tmp
 218                          */
 219                         ptr = dir;
 220                 } else {
 221                         ptr = lutil_strcopy( dir, bdb->bi_dbenv_home );
 222                         *ptr++ = LDAP_DIRSEP[0];
 223 #ifdef HAVE_EBCDIC
 224                         __atoe( dir );
 225 #endif
 226                 }
 227
 228                 strcpy( ptr, BDB_TMP_SUBDIR );
 229 #ifdef HAVE_EBCDIC
 230                 __atoe( ptr );
 231 #endif
 232                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 233                 if( rc != 0 ) {
 234 #ifdef NEW_LOGGING
 235                         LDAP_LOG( BACK_BDB, ERR,
 236                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 237                                 dir, db_strerror(rc), rc );
 238 #else
 239                         Debug( LDAP_DEBUG_ANY,
 240                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 241                                 dir, db_strerror(rc), rc );
 242 #endif
 243                         return rc;
 244                 }
 245
 246                 strcpy( ptr, BDB_LG_SUBDIR );
 247 #ifdef HAVE_EBCDIC
 248                 __atoe( ptr );
 249 #endif
 250                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 251                 if( rc != 0 ) {
 252 #ifdef NEW_LOGGING
 253                         LDAP_LOG( BACK_BDB, ERR,
 254                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 255                                 dir, db_strerror(rc), rc );
 256 #else
 257                         Debug( LDAP_DEBUG_ANY,
 258                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 259                                 dir, db_strerror(rc), rc );
 260 #endif
 261                         return rc;
 262                 }
 263
 264                 strcpy( ptr, BDB_DATA_SUBDIR );
 265 #ifdef HAVE_EBCDIC
 266                 __atoe( ptr );
 267 #endif
 268                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 269                 if( rc != 0 ) {
 270 #ifdef NEW_LOGGING
 271                         LDAP_LOG( BACK_BDB, ERR,
 272                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 273                                 dir, db_strerror(rc), rc );
 274 #else
 275                         Debug( LDAP_DEBUG_ANY,
 276                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 277                                 dir, db_strerror(rc), rc );
 278 #endif
 279                         return rc;
 280                 }
 281         }
 282 #endif
 283
 284 #ifdef NEW_LOGGING
 285         LDAP_LOG( BACK_BDB, DETAIL1,
 286                 "bdb_db_open: dbenv_open %s\n", bdb->bi_dbenv_home, 0, 0 );
 287 #else
 288         Debug( LDAP_DEBUG_TRACE,
 289                 "bdb_db_open: dbenv_open(%s)\n",
 290                 bdb->bi_dbenv_home, 0, 0);
 291 #endif
 292
 293 #ifdef HAVE_EBCDIC
 294         strcpy( path, bdb->bi_dbenv_home );
 295         __atoe( path );
 296         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 297                 path,
 298                 flags,
 299                 bdb->bi_dbenv_mode );
 300 #else
 301         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 302                 bdb->bi_dbenv_home,
 303                 flags,
 304                 bdb->bi_dbenv_mode );
 305 #endif
 306         if( rc != 0 ) {
 307 #ifdef NEW_LOGGING
 308                 LDAP_LOG( BACK_BDB, ERR,
 309                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 310                         db_strerror(rc), rc, 0 );
 311 #else
 312                 Debug( LDAP_DEBUG_ANY,
 313                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 314                         db_strerror(rc), rc, 0 );
 315 #endif
 316                 return rc;
 317         }
 318
 319         if( bdb->bi_dbenv_xflags != 0 ) {
 320                 rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
 321                         bdb->bi_dbenv_xflags, 1);
 322                 if( rc != 0 ) {
 323 #ifdef NEW_LOGGING
 324                         LDAP_LOG( BACK_BDB, ERR,
 325                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 326                                 db_strerror(rc), rc, 0 );
 327 #else
 328                         Debug( LDAP_DEBUG_ANY,
 329                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 330                                 db_strerror(rc), rc, 0 );
 331 #endif
 332                         return rc;
 333                 }
 334         }
 335
 336         flags = DB_THREAD | bdb->bi_db_opflags;
 337
 338         bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
 339                 BDB_INDICES * sizeof(struct bdb_db_info *) );
 340
 341         /* open (and create) main database */
 342         for( i = 0; bdbi_databases[i].name; i++ ) {
 343                 struct bdb_db_info *db;
 344
 345                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 346
 347                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 348                 if( rc != 0 ) {
 349 #ifdef NEW_LOGGING
 350                         LDAP_LOG( BACK_BDB, ERR,
 351                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 352                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 353 #else
 354                         Debug( LDAP_DEBUG_ANY,
 355                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 356                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 357 #endif
 358                         return rc;
 359                 }
 360
 361                 if( i == BDB_ID2ENTRY ) {
 362                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 363                                 bdb_bt_compare );
 364                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 365                                 BDB_ID2ENTRY_PAGESIZE );
 366                         if ( slapMode & SLAP_TOOL_READMAIN ) {
 367                                 flags |= DB_RDONLY;
 368                         } else {
 369                                 flags |= DB_CREATE;
 370                         }
 371                 } else {
 372                         rc = db->bdi_db->set_flags( db->bdi_db,
 373                                 DB_DUP | DB_DUPSORT );
 374 #ifndef BDB_HIER
 375                         rc = db->bdi_db->set_dup_compare( db->bdi_db,
 376                                 bdb_bt_compare );
 377                         if ( slapMode & SLAP_TOOL_READONLY ) {
 378                                 flags |= DB_RDONLY;
 379                         } else {
 380                                 flags |= DB_CREATE;
 381                         }
 382 #else
 383                         rc = db->bdi_db->set_dup_compare( db->bdi_db,
 384                                 bdb_dup_compare );
 385                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 386                                 bdb_bt_compare );
 387                         if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
 388                                 flags |= DB_RDONLY;
 389                         } else {
 390                                 flags |= DB_CREATE;
 391                         }
 392 #endif
 393                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 394                                 BDB_PAGESIZE );
 395                 }
 396
 397 #ifdef HAVE_EBCDIC
 398                 strcpy( path, bdbi_databases[i].file );
 399                 __atoe( path );
 400                 rc = DB_OPEN( db->bdi_db,
 401                         path,
 402                 /*      bdbi_databases[i].name, */ NULL,
 403                         bdbi_databases[i].type,
 404                         bdbi_databases[i].flags | flags,
 405                         bdb->bi_dbenv_mode );
 406 #else
 407                 rc = DB_OPEN( db->bdi_db,
 408                         bdbi_databases[i].file,
 409                 /*      bdbi_databases[i].name, */ NULL,
 410                         bdbi_databases[i].type,
 411                         bdbi_databases[i].flags | flags,
 412                         bdb->bi_dbenv_mode );
 413 #endif
 414
 415                 if( rc != 0 ) {
 416 #ifdef NEW_LOGGING
 417                         LDAP_LOG( BACK_BDB, ERR,
 418                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 419                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 420 #else
 421                         Debug( LDAP_DEBUG_ANY,
 422                                 "bdb_db_open: db_open(%s) failed: %s (%d)\n",
 423                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 424 #endif
 425                         return rc;
 426                 }
 427
 428                 flags &= ~(DB_CREATE | DB_RDONLY);
 429                 db->bdi_name = bdbi_databases[i].name;
 430                 bdb->bi_databases[i] = db;
 431         }
 432
 433         bdb->bi_databases[i] = NULL;
 434         bdb->bi_ndatabases = i;
 435
 436         /* get nextid */
 437         rc = bdb_last_id( be, NULL );
 438         if( rc != 0 ) {
 439 #ifdef NEW_LOGGING
 440                         LDAP_LOG( BACK_BDB, ERR,
 441                                 "bdb_db_open: last_id(%s) failed: %s (%d)\n",
 442                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 443 #else
 444                 Debug( LDAP_DEBUG_ANY,
 445                         "bdb_db_open: last_id(%s) failed: %s (%d)\n",
 446                         bdb->bi_dbenv_home, db_strerror(rc), rc );
 447 #endif
 448                 return rc;
 449         }
 450
 451         XLOCK_ID(bdb->bi_dbenv, &bdb->bi_cache.c_locker);
 452
 453         /* <insert> open (and create) index databases */
 454         return 0;
 455 }
 456
 457 static int
 458 bdb_db_close( BackendDB *be )
 459 {
 460         int rc;
 461         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 462         struct bdb_db_info *db;
 463         bdb_idl_cache_entry_t *entry, *next_entry;
 464
 465         while( bdb->bi_ndatabases-- ) {
 466                 db = bdb->bi_databases[bdb->bi_ndatabases];
 467                 rc = db->bdi_db->close( db->bdi_db, 0 );
 468                 /* Lower numbered names are not strdup'd */
 469                 if( bdb->bi_ndatabases >= BDB_NDB )
 470                         free( db->bdi_name );
 471                 free( db );
 472         }
 473         free( bdb->bi_databases );
 474         bdb_attr_index_destroy( bdb->bi_attrs );
 475
 476         bdb_cache_release_all (&bdb->bi_cache);
 477
 478         if ( bdb->bi_idl_cache_max_size ) {
 479                 ldap_pvt_thread_rdwr_wlock ( &bdb->bi_idl_tree_rwlock );
 480                 avl_free( bdb->bi_idl_tree, NULL );
 481                 entry = bdb->bi_idl_lru_head;
 482                 while ( entry != NULL ) {
 483                         next_entry = entry->idl_lru_next;
 484                         if ( entry->idl )
 485                                 free( entry->idl );
 486                         free( entry->kstr.bv_val );
 487                         free( entry );
 488                         entry = next_entry;
 489                 }
 490                 ldap_pvt_thread_rdwr_wunlock ( &bdb->bi_idl_tree_rwlock );
 491         }
 492
 493         XLOCK_ID_FREE(bdb->bi_dbenv, bdb->bi_cache.c_locker);
 494
 495         return 0;
 496 }
 497
 498 static int
 499 bdb_db_destroy( BackendDB *be )
 500 {
 501         int rc;
 502         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 503         Operation *ps = NULL;
 504         Operation *psn = NULL;
 505         void *saved_tmpmemctx = NULL;
 506
 507         /* close db environment */
 508         if( bdb->bi_dbenv ) {
 509                 /* force a checkpoint */
 510                 rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
 511                 if( rc != 0 ) {
 512 #ifdef NEW_LOGGING
 513                         LDAP_LOG( BACK_BDB, ERR,
 514                                 "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 515                                 db_strerror(rc), rc, 0 );
 516 #else
 517                         Debug( LDAP_DEBUG_ANY,
 518                                 "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 519                                 db_strerror(rc), rc, 0 );
 520 #endif
 521                 }
 522
 523                 rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 524                 bdb->bi_dbenv = NULL;
 525                 if( rc != 0 ) {
 526 #ifdef NEW_LOGGING
 527                         LDAP_LOG( BACK_BDB, ERR,
 528                                 "bdb_db_destroy: close failed: %s (%d)\n",
 529                                 db_strerror(rc), rc, 0 );
 530 #else
 531                         Debug( LDAP_DEBUG_ANY,
 532                                 "bdb_db_destroy: close failed: %s (%d)\n",
 533                                 db_strerror(rc), rc, 0 );
 534 #endif
 535                         return rc;
 536                 }
 537         }
 538
 539         if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
 540
 541         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
 542         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
 543         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_dntree.bei_kids_mutex );
 544         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_pslist_rwlock );
 545         ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
 546         ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
 547         if ( bdb->bi_idl_cache_max_size ) {
 548                 ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
 549                 ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
 550         }
 551
 552         ps = LDAP_LIST_FIRST( &bdb->bi_psearch_list );
 553
 554         if ( ps ) {
 555                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 556                 if ( ps->o_savmemctx ) {
 557                         ps->o_tmpmemctx = ps->o_savmemctx;
 558                         ps->o_tmpmfuncs = &sl_mfuncs;
 559                         ber_set_option(ps->o_ber, LBER_OPT_BER_MEMCTX, &ps->o_savmemctx);
 560                 }
 561                 saved_tmpmemctx = ps->o_tmpmemctx;
 562
 563                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 564                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx);
 565                 }
 566                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 567                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx);
 568                 }
 569                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 570                         slap_sl_free( ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 571                 }
 572                 if (ps->ors_filter != NULL) {
 573                         filter_free_x( ps, ps->ors_filter );
 574                 }
 575                 if (ps->ors_attrs != NULL) {
 576                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 577                 }
 578
 579                 slap_op_free( ps );
 580
 581                 if ( saved_tmpmemctx ) {
 582                         sl_mem_destroy( NULL, saved_tmpmemctx );
 583                 }
 584         }
 585
 586         while ( psn ) {
 587                 ps = psn;
 588                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 589
 590                 if ( ps->o_savmemctx ) {
 591                         ps->o_tmpmemctx = ps->o_savmemctx;
 592                         ps->o_tmpmfuncs = &sl_mfuncs;
 593                         ber_set_option(ps->o_ber, LBER_OPT_BER_MEMCTX, &ps->o_savmemctx);
 594                 }
 595                 saved_tmpmemctx = ps->o_tmpmemctx;
 596
 597                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 598                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx);
 599                 }
 600                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 601                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx);
 602                 }
 603                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 604                         slap_sl_free( ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 605                 }
 606                 if (ps->ors_filter != NULL) {
 607                         filter_free_x( ps, ps->ors_filter );
 608                 }
 609                 if (ps->ors_attrs != NULL) {
 610                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 611                 }
 612
 613                 slap_op_free( ps );
 614
 615                 if ( saved_tmpmemctx ) {
 616                         sl_mem_destroy( NULL, saved_tmpmemctx );
 617                 }
 618         }
 619
 620         ch_free( bdb );
 621         be->be_private = NULL;
 622
 623         return 0;
 624 }
 625
 626 #if     (SLAPD_BDB == SLAPD_MOD_DYNAMIC && !defined(BDB_HIER)) || \
 627         (SLAPD_HDB == SLAPD_MOD_DYNAMIC && defined(BDB_HIER))
 628 int init_module( int argc, char *argv[] ) {
 629         BackendInfo bi;
 630
 631         memset( &bi, '\0', sizeof(bi) );
 632 #ifdef BDB_HIER
 633         bi.bi_type = "hdb";
 634 #else
 635         bi.bi_type = "bdb";
 636 #endif
 637         bi.bi_init = bdb_initialize;
 638
 639         backend_add( &bi );
 640         return 0;
 641 }
 642 #endif /* SLAPD_BDB */
 643
 644 int
 645 bdb_initialize(
 646         BackendInfo     *bi )
 647 {
 648         static char *controls[] = {
 649                 LDAP_CONTROL_ASSERT,
 650                 LDAP_CONTROL_MANAGEDSAIT,
 651                 LDAP_CONTROL_NOOP,
 652                 LDAP_CONTROL_PAGEDRESULTS,
 653 #ifdef LDAP_CONTROL_SUBENTRIES
 654                 LDAP_CONTROL_SUBENTRIES,
 655 #endif
 656                 LDAP_CONTROL_VALUESRETURNFILTER,
 657                 NULL
 658         };
 659
 660         /* initialize the underlying database system */
 661 #ifdef NEW_LOGGING
 662         LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_initialize\n", 0, 0, 0 );
 663 #else
 664         Debug( LDAP_DEBUG_TRACE, "bdb_initialize: initialize BDB backend\n",
 665                 0, 0, 0 );
 666 #endif
 667
 668         bi->bi_flags |=
 669                 SLAP_BFLAG_INCREMENT |
 670 #ifdef BDB_SUBENTRIES
 671                 SLAP_BFLAG_SUBENTRIES |
 672 #endif
 673 #ifdef BDB_ALIASES
 674                 SLAP_BFLAG_ALIASES |
 675 #endif
 676                 SLAP_BFLAG_REFERRALS;
 677
 678         bi->bi_controls = controls;
 679
 680         {       /* version check */
 681                 int major, minor, patch;
 682                 char *version = db_version( &major, &minor, &patch );
 683 #ifdef HAVE_EBCDIC
 684                 char v2[1024];
 685
 686                 /* All our stdio does an ASCII to EBCDIC conversion on
 687                  * the output. Strings from the BDB library are already
 688                  * in EBCDIC; we have to go back and forth...
 689                  */
 690                 strcpy( v2, version );
 691                 __etoa( v2 );
 692                 version = v2;
 693 #endif
 694
 695                 if( major != DB_VERSION_MAJOR ||
 696                         minor != DB_VERSION_MINOR ||
 697                         patch < DB_VERSION_PATCH )
 698                 {
 699 #ifdef NEW_LOGGING
 700                         LDAP_LOG( BACK_BDB, ERR,
 701                                 "bdb_initialize: BDB library version mismatch:"
 702                                 " expected " DB_VERSION_STRING ","
 703                                 " got %s\n", version, 0, 0 );
 704 #else
 705                         Debug( LDAP_DEBUG_ANY,
 706                                 "bdb_initialize: BDB library version mismatch:"
 707                                 " expected " DB_VERSION_STRING ","
 708                                 " got %s\n", version, 0, 0 );
 709 #endif
 710                 }
 711
 712 #ifdef NEW_LOGGING
 713                 LDAP_LOG( BACK_BDB, DETAIL1,
 714                         "bdb_db_initialize: %s\n", version, 0, 0 );
 715 #else
 716                 Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
 717                         version, 0, 0 );
 718 #endif
 719         }
 720
 721         db_env_set_func_free( ber_memfree );
 722         db_env_set_func_malloc( (db_malloc *)ber_memalloc );
 723         db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
 724 #ifndef NO_THREAD
 725         /* This is a no-op on a NO_THREAD build. Leave the default
 726          * alone so that BDB will sleep on interprocess conflicts.
 727          */
 728         db_env_set_func_yield( ldap_pvt_thread_yield );
 729 #endif
 730
 731         {
 732                 static char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 733
 734                 bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
 735                 bdb_uuid.bv_val = uuidbuf;
 736         }
 737
 738         bi->bi_open = 0;
 739         bi->bi_close = 0;
 740         bi->bi_config = 0;
 741         bi->bi_destroy = 0;
 742
 743         bi->bi_db_init = bdb_db_init;
 744         bi->bi_db_config = bdb_db_config;
 745         bi->bi_db_open = bdb_db_open;
 746         bi->bi_db_close = bdb_db_close;
 747         bi->bi_db_destroy = bdb_db_destroy;
 748
 749         bi->bi_op_add = bdb_add;
 750         bi->bi_op_bind = bdb_bind;
 751         bi->bi_op_compare = bdb_compare;
 752         bi->bi_op_delete = bdb_delete;
 753         bi->bi_op_modify = bdb_modify;
 754         bi->bi_op_modrdn = bdb_modrdn;
 755         bi->bi_op_search = bdb_search;
 756
 757         bi->bi_op_unbind = 0;
 758
 759         bi->bi_op_abandon = bdb_abandon;
 760         bi->bi_op_cancel = bdb_cancel;
 761
 762         bi->bi_extended = bdb_extended;
 763
 764         bi->bi_chk_referrals = bdb_referrals;
 765         bi->bi_operational = bdb_operational;
 766         bi->bi_has_subordinates = bdb_hasSubordinates;
 767         bi->bi_entry_release_rw = bdb_entry_release;
 768         bi->bi_entry_get_rw = bdb_entry_get;
 769
 770         /*
 771          * hooks for slap tools
 772          */
 773         bi->bi_tool_entry_open = bdb_tool_entry_open;
 774         bi->bi_tool_entry_close = bdb_tool_entry_close;
 775         bi->bi_tool_entry_first = bdb_tool_entry_next;
 776         bi->bi_tool_entry_next = bdb_tool_entry_next;
 777         bi->bi_tool_entry_get = bdb_tool_entry_get;
 778         bi->bi_tool_entry_put = bdb_tool_entry_put;
 779         bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
 780         bi->bi_tool_sync = 0;
 781         bi->bi_tool_dn2id_get = bdb_tool_dn2id_get;
 782         bi->bi_tool_id2entry_get = bdb_tool_id2entry_get;
 783         bi->bi_tool_entry_modify = bdb_tool_entry_modify;
 784
 785         bi->bi_connection_init = 0;
 786         bi->bi_connection_destroy = 0;
 787
 788         return 0;
 789 }