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

   1 /* init.c - initialize bdb backend */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11 #include <ac/string.h>
  12 #include <ac/unistd.h>
  13 #include <ac/stdlib.h>
  14
  15 #include <lutil.h>
  16
  17 #include "back-bdb.h"
  18 #include "external.h"
  19
  20 static struct bdbi_database {
  21         char *file;
  22         char *name;
  23         int type;
  24         int flags;
  25 } bdbi_databases[] = {
  26         { "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
  27 #ifdef BDB_HIER
  28         { "id2parent" BDB_SUFFIX, "id2parent", DB_BTREE, 0 },
  29 #else
  30         { "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
  31 #endif
  32         { NULL, NULL, 0, 0 }
  33 };
  34
  35 struct berval bdb_uuid = { 0, NULL };
  36
  37 static int
  38 bdb_open( BackendInfo *bi )
  39 {
  40         return 0;
  41 }
  42
  43 #if 0
  44 static int
  45 bdb_destroy( BackendInfo *bi )
  46 {
  47         return 0;
  48 }
  49
  50 static int
  51 bdb_close( BackendInfo *bi )
  52 {
  53         /* terminate the underlying database system */
  54         return 0;
  55 }
  56 #endif
  57
  58 static int
  59 bdb_db_init( BackendDB *be )
  60 {
  61         struct bdb_info *bdb;
  62
  63 #ifdef NEW_LOGGING
  64         LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_init", 0, 0, 0 );
  65 #else
  66         Debug( LDAP_DEBUG_ANY,
  67                 "bdb_db_init: Initializing BDB database\n",
  68                 0, 0, 0 );
  69 #endif
  70
  71         /* indicate system schema supported */
  72         be->be_flags |=
  73 #ifdef BDB_SUBENTRIES
  74                 SLAP_BFLAG_SUBENTRIES |
  75 #endif
  76 #ifdef BDB_ALIASES
  77                 SLAP_BFLAG_ALIASES |
  78 #endif
  79                 SLAP_BFLAG_REFERRALS;
  80
  81         /* allocate backend-database-specific stuff */
  82         bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
  83
  84         /* DBEnv parameters */
  85         bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
  86         bdb->bi_dbenv_xflags = 0;
  87         bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
  88
  89         bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
  90
  91 #ifndef NO_THREADS
  92 #if 0
  93         bdb->bi_lock_detect = DB_LOCK_NORUN;
  94 #else
  95         bdb->bi_lock_detect = DB_LOCK_DEFAULT;
  96 #endif
  97 #endif
  98
  99         ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
 100         ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
 101         ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_mutex );
 102         ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
 103 #ifdef BDB_HIER
 104         ldap_pvt_thread_rdwr_init( &bdb->bi_tree_rdwr );
 105 #endif
 106
 107         be->be_private = bdb;
 108         return 0;
 109 }
 110
 111 #if 0 /* ifndef NO_THREADS */
 112 static void *lock_detect_task( void *arg )
 113 {
 114         struct bdb_info *bdb = (struct bdb_info *) arg;
 115
 116         while( bdb->bi_dbenv != NULL ) {
 117                 int rc;
 118                 int aborted;
 119                 sleep( bdb->bi_lock_detect_seconds );
 120
 121                 rc = LOCK_DETECT( bdb->bi_dbenv, 0,
 122                         bdb->bi_lock_detect, &aborted );
 123
 124                 if( rc != 0 ) {
 125                         break;
 126                 }
 127
 128 #ifdef NEW_LOGGING
 129                 LDAP_LOG( BACK_BDB, ERR, "bdb_db_init: aborted %d locks\n",
 130                         aborted, 0, 0 );
 131 #else
 132                 Debug( LDAP_DEBUG_ANY,
 133                         "bdb_lock_detect: aborted %d locks\n",
 134                         aborted, 0, 0 );
 135 #endif
 136         }
 137
 138         return NULL;
 139 }
 140 #endif
 141
 142 int
 143 bdb_bt_compare(
 144         DB *db,
 145         const DBT *usrkey,
 146         const DBT *curkey
 147 )
 148 {
 149         unsigned char *u, *c;
 150         int i;
 151
 152         u = usrkey->data;
 153         c = curkey->data;
 154
 155 #ifdef WORDS_BIGENDIAN
 156         for( i = 0; i < sizeof(ID); i++)
 157 #else
 158         for( i = sizeof(ID)-1; i >= 0; i--)
 159 #endif
 160         {
 161                 if( u[i] - c[i] )
 162                         return u[i] - c[i];
 163         }
 164         return 0;
 165 }
 166
 167 static int
 168 bdb_db_open( BackendDB *be )
 169 {
 170         int rc, i;
 171         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 172         u_int32_t flags;
 173
 174 #ifdef NEW_LOGGING
 175         LDAP_LOG( BACK_BDB, ARGS,
 176                 "bdb_db_open: %s\n", be->be_suffix[0].bv_val, 0, 0 );
 177 #else
 178         Debug( LDAP_DEBUG_ARGS,
 179                 "bdb_db_open: %s\n",
 180                 be->be_suffix[0].bv_val, 0, 0 );
 181 #endif
 182
 183         /* we should check existance of dbenv_home and db_directory */
 184
 185         rc = db_env_create( &bdb->bi_dbenv, 0 );
 186         if( rc != 0 ) {
 187 #ifdef NEW_LOGGING
 188                 LDAP_LOG( BACK_BDB, ERR,
 189                         "bdb_db_open: db_env_create failed: %s (%d)\n",
 190                         db_strerror(rc), rc, 0 );
 191 #else
 192                 Debug( LDAP_DEBUG_ANY,
 193                         "bdb_db_open: db_env_create failed: %s (%d)\n",
 194                         db_strerror(rc), rc, 0 );
 195 #endif
 196                 return rc;
 197         }
 198
 199         flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
 200                 | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN | DB_RECOVER;
 201
 202         bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
 203         bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
 204 #ifndef NO_THREADS
 205         bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
 206 #endif
 207
 208 #ifdef BDB_SUBDIRS
 209         {
 210                 char dir[MAXPATHLEN];
 211                 size_t len = strlen( bdb->bi_dbenv_home );
 212
 213                 strcpy( dir, bdb->bi_dbenv_home );
 214                 strcat( &dir[len], BDB_TMP_SUBDIR );
 215
 216                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 217                 if( rc != 0 ) {
 218 #ifdef NEW_LOGGING
 219                         LDAP_LOG( BACK_BDB, ERR,
 220                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 221                                 dir, db_strerror(rc), rc );
 222 #else
 223                         Debug( LDAP_DEBUG_ANY,
 224                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 225                                 dir, db_strerror(rc), rc );
 226 #endif
 227                         return rc;
 228                 }
 229
 230                 strcat( &dir[len], BDB_LG_SUBDIR );
 231
 232                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 233                 if( rc != 0 ) {
 234 #ifdef NEW_LOGGING
 235                         LDAP_LOG( BACK_BDB, ERR,
 236                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 237                                 dir, db_strerror(rc), rc );
 238 #else
 239                         Debug( LDAP_DEBUG_ANY,
 240                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 241                                 dir, db_strerror(rc), rc );
 242 #endif
 243                         return rc;
 244                 }
 245
 246                 strcat( &dir[len], BDB_DATA_SUBDIR );
 247
 248                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 249                 if( rc != 0 ) {
 250 #ifdef NEW_LOGGING
 251                         LDAP_LOG( BACK_BDB, ERR,
 252                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 253                                 dir, db_strerror(rc), rc );
 254 #else
 255                         Debug( LDAP_DEBUG_ANY,
 256                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 257                                 dir, db_strerror(rc), rc );
 258 #endif
 259                         return rc;
 260                 }
 261         }
 262 #endif
 263
 264 #ifdef NEW_LOGGING
 265         LDAP_LOG( BACK_BDB, DETAIL1,
 266                 "bdb_db_open: dbenv_open %s\n", bdb->bi_dbenv_home, 0, 0 );
 267 #else
 268         Debug( LDAP_DEBUG_TRACE,
 269                 "bdb_db_open: dbenv_open(%s)\n",
 270                 bdb->bi_dbenv_home, 0, 0);
 271 #endif
 272
 273         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 274                 bdb->bi_dbenv_home,
 275                 flags,
 276                 bdb->bi_dbenv_mode );
 277         if( rc != 0 ) {
 278 #ifdef NEW_LOGGING
 279                 LDAP_LOG( BACK_BDB, ERR,
 280                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 281                         db_strerror(rc), rc, 0 );
 282 #else
 283                 Debug( LDAP_DEBUG_ANY,
 284                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 285                         db_strerror(rc), rc, 0 );
 286 #endif
 287                 return rc;
 288         }
 289
 290         if( bdb->bi_dbenv_xflags != 0 ) {
 291                 rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
 292                         bdb->bi_dbenv_xflags, 1);
 293                 if( rc != 0 ) {
 294 #ifdef NEW_LOGGING
 295                         LDAP_LOG( BACK_BDB, ERR,
 296                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 297                                 db_strerror(rc), rc, 0 );
 298 #else
 299                         Debug( LDAP_DEBUG_ANY,
 300                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 301                                 db_strerror(rc), rc, 0 );
 302 #endif
 303                         return rc;
 304                 }
 305         }
 306
 307         flags = DB_THREAD | DB_CREATE | bdb->bi_db_opflags;
 308
 309         bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
 310                 BDB_INDICES * sizeof(struct bdb_db_info *) );
 311
 312         /* open (and create) main database */
 313         for( i = 0; bdbi_databases[i].name; i++ ) {
 314                 struct bdb_db_info *db;
 315
 316                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 317
 318                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 319                 if( rc != 0 ) {
 320 #ifdef NEW_LOGGING
 321                         LDAP_LOG( BACK_BDB, ERR,
 322                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 323                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 324 #else
 325                         Debug( LDAP_DEBUG_ANY,
 326                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 327                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 328 #endif
 329                         return rc;
 330                 }
 331
 332                 if( i == BDB_ID2ENTRY ) {
 333                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 334                                 bdb_bt_compare );
 335                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 336                                 BDB_ID2ENTRY_PAGESIZE );
 337                 } else {
 338 #ifdef BDB_HIER
 339                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 340                                 bdb_bt_compare );
 341 #elif defined(BDB_IDL_MULTI)
 342                         rc = db->bdi_db->set_flags( db->bdi_db,
 343                                 DB_DUP | DB_DUPSORT );
 344                         rc = db->bdi_db->set_dup_compare( db->bdi_db,
 345                                 bdb_bt_compare );
 346 #endif
 347                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 348                                 BDB_PAGESIZE );
 349                 }
 350
 351                 rc = db->bdi_db->open( db->bdi_db,
 352                         bdbi_databases[i].file,
 353                 /*      bdbi_databases[i].name, */ NULL,
 354                         bdbi_databases[i].type,
 355                         bdbi_databases[i].flags | flags,
 356                         bdb->bi_dbenv_mode );
 357
 358                 if( rc != 0 ) {
 359 #ifdef NEW_LOGGING
 360                         LDAP_LOG( BACK_BDB, ERR,
 361                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 362                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 363 #else
 364                         Debug( LDAP_DEBUG_ANY,
 365                                 "bdb_db_open: db_open(%s) failed: %s (%d)\n",
 366                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 367 #endif
 368                         return rc;
 369                 }
 370
 371                 db->bdi_name = bdbi_databases[i].name;
 372                 bdb->bi_databases[i] = db;
 373         }
 374
 375         bdb->bi_databases[i] = NULL;
 376         bdb->bi_ndatabases = i;
 377
 378         /* get nextid */
 379         rc = bdb_last_id( be, NULL );
 380         if( rc != 0 ) {
 381 #ifdef NEW_LOGGING
 382                         LDAP_LOG( BACK_BDB, ERR,
 383                                 "bdb_db_open: last_id(%s) failed: %s (%d)\n",
 384                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 385 #else
 386                 Debug( LDAP_DEBUG_ANY,
 387                         "bdb_db_open: last_id(%s) failed: %s (%d)\n",
 388                         bdb->bi_dbenv_home, db_strerror(rc), rc );
 389 #endif
 390                 return rc;
 391         }
 392
 393         /* <insert> open (and create) index databases */
 394 #ifdef BDB_HIER
 395         rc = bdb_build_tree( be );
 396 #endif
 397
 398 #if 0 /* ifndef NO_THREADS */
 399         if( bdb->bi_lock_detect != DB_LOCK_NORUN ) {
 400                 /* listener as a separate THREAD */
 401                 rc = ldap_pvt_thread_create( &bdb->bi_lock_detect_tid,
 402                         1, lock_detect_task, bdb );
 403         }
 404 #endif
 405         return 0;
 406 }
 407
 408 static int
 409 bdb_db_close( BackendDB *be )
 410 {
 411         int rc;
 412         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 413         struct bdb_db_info *db;
 414
 415         while( bdb->bi_ndatabases-- ) {
 416                 db = bdb->bi_databases[bdb->bi_ndatabases];
 417                 rc = db->bdi_db->close( db->bdi_db, 0 );
 418                 /* Lower numbered names are not strdup'd */
 419                 if( bdb->bi_ndatabases >= BDB_NDB )
 420                         free( db->bdi_name );
 421                 free( db );
 422         }
 423         free( bdb->bi_databases );
 424         bdb_attr_index_destroy( bdb->bi_attrs );
 425
 426         bdb_cache_release_all (&bdb->bi_cache);
 427
 428         return 0;
 429 }
 430
 431 static int
 432 bdb_db_destroy( BackendDB *be )
 433 {
 434         int rc;
 435         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 436
 437         /* close db environment */
 438         if( bdb->bi_dbenv ) {
 439                 /* force a checkpoint */
 440                 rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
 441                 if( rc != 0 ) {
 442 #ifdef NEW_LOGGING
 443                         LDAP_LOG( BACK_BDB, ERR,
 444                                 "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 445                                 db_strerror(rc), rc, 0 );
 446 #else
 447                         Debug( LDAP_DEBUG_ANY,
 448                                 "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 449                                 db_strerror(rc), rc, 0 );
 450 #endif
 451                 }
 452
 453                 bdb_cache_release_all (&bdb->bi_cache);
 454
 455                 rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 456                 bdb->bi_dbenv = NULL;
 457                 if( rc != 0 ) {
 458 #ifdef NEW_LOGGING
 459                         LDAP_LOG( BACK_BDB, ERR,
 460                                 "bdb_db_destroy: close failed: %s (%d)\n",
 461                                 db_strerror(rc), rc, 0 );
 462 #else
 463                         Debug( LDAP_DEBUG_ANY,
 464                                 "bdb_db_destroy: close failed: %s (%d)\n",
 465                                 db_strerror(rc), rc, 0 );
 466 #endif
 467                         return rc;
 468                 }
 469         }
 470
 471 #ifdef BDB_HIER
 472         ldap_pvt_thread_rdwr_destroy( &bdb->bi_tree_rdwr );
 473 #endif
 474         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
 475         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
 476         ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
 477         ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
 478
 479         return 0;
 480 }
 481
 482 #ifdef SLAPD_BDB_DYNAMIC
 483 int back_bdb_LTX_init_module( int argc, char *argv[] ) {
 484         BackendInfo bi;
 485
 486         memset( &bi, '\0', sizeof(bi) );
 487         bi.bi_type = "bdb";
 488         bi.bi_init = bdb_initialize;
 489
 490         backend_add( &bi );
 491         return 0;
 492 }
 493 #endif /* SLAPD_BDB_DYNAMIC */
 494
 495 int
 496 bdb_initialize(
 497         BackendInfo     *bi
 498 )
 499 {
 500         static char *controls[] = {
 501                 LDAP_CONTROL_MANAGEDSAIT,
 502 #ifdef LDAP_CONTROL_SUBENTRIES
 503                 LDAP_CONTROL_SUBENTRIES,
 504 #endif
 505 #ifdef LDAP_CONTROL_NOOP
 506                 LDAP_CONTROL_NOOP,
 507 #endif
 508 #ifdef LDAP_CONTROL_VALUESRETURNFILTER
 509                 LDAP_CONTROL_VALUESRETURNFILTER,
 510 #endif
 511                 NULL
 512         };
 513
 514         bi->bi_controls = controls;
 515
 516         /* initialize the underlying database system */
 517 #ifdef NEW_LOGGING
 518         LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_initialize\n", 0, 0, 0 );
 519 #else
 520         Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
 521                 0, 0, 0 );
 522 #endif
 523
 524         {       /* version check */
 525                 int major, minor, patch;
 526                 char *version = db_version( &major, &minor, &patch );
 527
 528                 if( major != DB_VERSION_MAJOR ||
 529                         minor != DB_VERSION_MINOR ||
 530                         patch < DB_VERSION_PATCH )
 531                 {
 532 #ifdef NEW_LOGGING
 533                         LDAP_LOG( BACK_BDB, ERR,
 534                                 "bdb_db_initialize: version mismatch: "
 535                                 "\texpected: %s \tgot: %s\n", DB_VERSION_STRING, version, 0 );
 536 #else
 537                         Debug( LDAP_DEBUG_ANY,
 538                                 "bdb_open: version mismatch\n"
 539                                 "\texpected: " DB_VERSION_STRING "\n"
 540                                 "\tgot: %s \n", version, 0, 0 );
 541 #endif
 542                 }
 543
 544 #ifdef NEW_LOGGING
 545                 LDAP_LOG( BACK_BDB, DETAIL1,
 546                         "bdb_db_initialize: bdb_open: %s\n", version, 0, 0 );
 547 #else
 548                 Debug( LDAP_DEBUG_ANY, "bdb_open: %s\n",
 549                         version, 0, 0 );
 550 #endif
 551         }
 552
 553 #if 0
 554         db_env_set_func_malloc( ch_malloc );
 555         db_env_set_func_realloc( ch_realloc );
 556         db_env_set_func_free( ch_free );
 557 #endif
 558
 559         db_env_set_func_yield( ldap_pvt_thread_yield );
 560
 561         {
 562                 static char uuidbuf[40];
 563
 564                 bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
 565                 bdb_uuid.bv_val = uuidbuf;
 566         }
 567
 568         bi->bi_open = 0;
 569         bi->bi_close = 0;
 570         bi->bi_config = 0;
 571         bi->bi_destroy = 0;
 572
 573         bi->bi_db_init = bdb_db_init;
 574         bi->bi_db_config = bdb_db_config;
 575         bi->bi_db_open = bdb_db_open;
 576         bi->bi_db_close = bdb_db_close;
 577         bi->bi_db_destroy = bdb_db_destroy;
 578
 579         bi->bi_op_add = bdb_add;
 580         bi->bi_op_bind = bdb_bind;
 581         bi->bi_op_compare = bdb_compare;
 582         bi->bi_op_delete = bdb_delete;
 583         bi->bi_op_modify = bdb_modify;
 584         bi->bi_op_modrdn = bdb_modrdn;
 585         bi->bi_op_search = bdb_search;
 586
 587         bi->bi_op_unbind = 0;
 588         bi->bi_op_abandon = 0;
 589
 590         bi->bi_extended = bdb_extended;
 591
 592 #if 1
 593         /*
 594          * these routines (and their callers) are not yet designed
 595          * to work with transaction.  Using them may cause deadlock.
 596          */
 597         bi->bi_acl_group = bdb_group;
 598         bi->bi_acl_attribute = bdb_attribute;
 599 #else
 600         bi->bi_acl_group = 0;
 601         bi->bi_acl_attribute = 0;
 602 #endif
 603
 604         bi->bi_chk_referrals = bdb_referrals;
 605         bi->bi_operational = bdb_operational;
 606         bi->bi_entry_release_rw = bdb_entry_release;
 607
 608         /*
 609          * hooks for slap tools
 610          */
 611         bi->bi_tool_entry_open = bdb_tool_entry_open;
 612         bi->bi_tool_entry_close = bdb_tool_entry_close;
 613         bi->bi_tool_entry_first = bdb_tool_entry_next;
 614         bi->bi_tool_entry_next = bdb_tool_entry_next;
 615         bi->bi_tool_entry_get = bdb_tool_entry_get;
 616         bi->bi_tool_entry_put = bdb_tool_entry_put;
 617         bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
 618         bi->bi_tool_sync = 0;
 619
 620         bi->bi_connection_init = 0;
 621         bi->bi_connection_destroy = 0;
 622
 623         return 0;
 624 }