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 2000-2005 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 <lutil.h>
  26 #include <ldap_rq.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         Debug( LDAP_DEBUG_ANY,
  71                 LDAP_XSTRING(bdb_db_init) ": Initializing "
  72                 BDB_UCTYPE " database\n", 0, 0, 0 );
  73
  74         /* allocate backend-database-specific stuff */
  75         bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
  76
  77         /* DBEnv parameters */
  78         bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
  79         bdb->bi_dbenv_xflags = 0;
  80         bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
  81
  82         bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
  83
  84         bdb->bi_lock_detect = DB_LOCK_DEFAULT;
  85         bdb->bi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
  86         bdb->bi_search_stack = NULL;
  87
  88 #ifdef BDB_PSEARCH
  89         LDAP_LIST_INIT (&bdb->bi_psearch_list);
  90         ldap_pvt_thread_rdwr_init ( &bdb->bi_pslist_rwlock );
  91 #endif
  92
  93         ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
  94         ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
  95         ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_mutex );
  96         ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_dntree.bei_kids_mutex );
  97         ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
  98
  99         be->be_private = bdb;
 100
 101         return 0;
 102 }
 103
 104 static void *
 105 bdb_checkpoint( void *ctx, void *arg )
 106 {
 107         struct re_s *rtask = arg;
 108         struct bdb_info *bdb = rtask->arg;
 109
 110         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
 111                 bdb->bi_txn_cp_min, 0 );
 112         return NULL;
 113 }
 114
 115 static int
 116 bdb_db_open( BackendDB *be )
 117 {
 118         int rc, i;
 119         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 120         u_int32_t flags;
 121 #ifdef HAVE_EBCDIC
 122         char path[MAXPATHLEN];
 123 #endif
 124
 125         Debug( LDAP_DEBUG_ARGS,
 126                 "bdb_db_open: %s\n",
 127                 be->be_suffix[0].bv_val, 0, 0 );
 128
 129 #ifndef BDB_MULTIPLE_SUFFIXES
 130         if ( be->be_suffix[1].bv_val ) {
 131         Debug( LDAP_DEBUG_ANY,
 132                 "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
 133                 return -1;
 134         }
 135 #endif
 136         /* we should check existance of dbenv_home and db_directory */
 137
 138         rc = db_env_create( &bdb->bi_dbenv, 0 );
 139         if( rc != 0 ) {
 140                 Debug( LDAP_DEBUG_ANY,
 141                         "bdb_db_open: db_env_create failed: %s (%d)\n",
 142                         db_strerror(rc), rc, 0 );
 143                 return rc;
 144         }
 145
 146         flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
 147                 | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN;
 148
 149 #if 0
 150         /* Never do automatic recovery, must perform it manually.
 151          * Otherwise restarting with gentlehup will corrupt the
 152          * database.
 153          */
 154         if( !(slapMode & SLAP_TOOL_MODE) ) flags |= DB_RECOVER;
 155 #endif
 156
 157         /* If a key was set, use shared memory for the BDB environment */
 158         if ( bdb->bi_shm_key ) {
 159                 bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
 160                 flags |= DB_SYSTEM_MEM;
 161         }
 162
 163         bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
 164         bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
 165         bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
 166
 167         /* One long-lived TXN per thread, two TXNs per write op */
 168         bdb->bi_dbenv->set_tx_max( bdb->bi_dbenv, connection_pool_max * 3 );
 169
 170 #ifdef SLAP_ZONE_ALLOC
 171         if ( bdb->bi_cache.c_maxsize ) {
 172                 bdb->bi_cache.c_zctx = slap_zn_mem_create(
 173                                                                 SLAP_ZONE_INITSIZE,
 174                                                                 SLAP_ZONE_MAXSIZE,
 175                                                                 SLAP_ZONE_DELTA,
 176                                                                 SLAP_ZONE_SIZE);
 177         }
 178 #endif
 179
 180         if ( bdb->bi_idl_cache_max_size ) {
 181                 bdb->bi_idl_tree = NULL;
 182                 ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
 183                 ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
 184                 bdb->bi_idl_cache_size = 0;
 185         }
 186
 187 #ifdef BDB_SUBDIRS
 188         {
 189                 char dir[MAXPATHLEN], *ptr;
 190
 191                 if (bdb->bi_dbenv_home[0] == '.') {
 192                         /* If home is a relative path, relative subdirs
 193                          * are just concat'd by BDB. We don't want the
 194                          * path to be concat'd twice, e.g.
 195                          * ./test-db/./test-db/tmp
 196                          */
 197                         ptr = dir;
 198                 } else {
 199                         ptr = lutil_strcopy( dir, bdb->bi_dbenv_home );
 200                         *ptr++ = LDAP_DIRSEP[0];
 201 #ifdef HAVE_EBCDIC
 202                         __atoe( dir );
 203 #endif
 204                 }
 205
 206                 strcpy( ptr, BDB_TMP_SUBDIR );
 207 #ifdef HAVE_EBCDIC
 208                 __atoe( ptr );
 209 #endif
 210                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 211                 if( rc != 0 ) {
 212                         Debug( LDAP_DEBUG_ANY,
 213                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 214                                 dir, db_strerror(rc), rc );
 215                         return rc;
 216                 }
 217
 218                 strcpy( ptr, BDB_LG_SUBDIR );
 219 #ifdef HAVE_EBCDIC
 220                 __atoe( ptr );
 221 #endif
 222                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 223                 if( rc != 0 ) {
 224                         Debug( LDAP_DEBUG_ANY,
 225                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 226                                 dir, db_strerror(rc), rc );
 227                         return rc;
 228                 }
 229
 230                 strcpy( ptr, BDB_DATA_SUBDIR );
 231 #ifdef HAVE_EBCDIC
 232                 __atoe( ptr );
 233 #endif
 234                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 235                 if( rc != 0 ) {
 236                         Debug( LDAP_DEBUG_ANY,
 237                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 238                                 dir, db_strerror(rc), rc );
 239                         return rc;
 240                 }
 241         }
 242 #endif
 243
 244         if( bdb->bi_dbenv_xflags != 0 ) {
 245                 rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
 246                         bdb->bi_dbenv_xflags, 1);
 247                 if( rc != 0 ) {
 248                         Debug( LDAP_DEBUG_ANY,
 249                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 250                                 db_strerror(rc), rc, 0 );
 251                         return rc;
 252                 }
 253         }
 254
 255         Debug( LDAP_DEBUG_TRACE,
 256                 "bdb_db_open: dbenv_open(%s)\n",
 257                 bdb->bi_dbenv_home, 0, 0);
 258
 259 #ifdef HAVE_EBCDIC
 260         strcpy( path, bdb->bi_dbenv_home );
 261         __atoe( path );
 262         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 263                 path,
 264                 flags,
 265                 bdb->bi_dbenv_mode );
 266 #else
 267         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 268                 bdb->bi_dbenv_home,
 269                 flags,
 270                 bdb->bi_dbenv_mode );
 271 #endif
 272         if( rc != 0 ) {
 273                 Debug( LDAP_DEBUG_ANY,
 274                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 275                         db_strerror(rc), rc, 0 );
 276                 return rc;
 277         }
 278
 279         flags = DB_THREAD | bdb->bi_db_opflags;
 280
 281         bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
 282                 BDB_INDICES * sizeof(struct bdb_db_info *) );
 283
 284         /* open (and create) main database */
 285         for( i = 0; bdbi_databases[i].name; i++ ) {
 286                 struct bdb_db_info *db;
 287
 288                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 289
 290                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 291                 if( rc != 0 ) {
 292                         Debug( LDAP_DEBUG_ANY,
 293                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 294                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 295                         return rc;
 296                 }
 297
 298                 if( i == BDB_ID2ENTRY ) {
 299                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 300                                 BDB_ID2ENTRY_PAGESIZE );
 301                         if ( slapMode & SLAP_TOOL_READMAIN ) {
 302                                 flags |= DB_RDONLY;
 303                         } else {
 304                                 flags |= DB_CREATE;
 305                         }
 306                 } else {
 307                         rc = db->bdi_db->set_flags( db->bdi_db,
 308                                 DB_DUP | DB_DUPSORT );
 309 #ifndef BDB_HIER
 310                         if ( slapMode & SLAP_TOOL_READONLY ) {
 311                                 flags |= DB_RDONLY;
 312                         } else {
 313                                 flags |= DB_CREATE;
 314                         }
 315 #else
 316                         if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
 317                                 flags |= DB_RDONLY;
 318                         } else {
 319                                 flags |= DB_CREATE;
 320                         }
 321 #endif
 322                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 323                                 BDB_PAGESIZE );
 324                 }
 325
 326 #ifdef HAVE_EBCDIC
 327                 strcpy( path, bdbi_databases[i].file );
 328                 __atoe( path );
 329                 rc = DB_OPEN( db->bdi_db,
 330                         path,
 331                 /*      bdbi_databases[i].name, */ NULL,
 332                         bdbi_databases[i].type,
 333                         bdbi_databases[i].flags | flags,
 334                         bdb->bi_dbenv_mode );
 335 #else
 336                 rc = DB_OPEN( db->bdi_db,
 337                         bdbi_databases[i].file,
 338                 /*      bdbi_databases[i].name, */ NULL,
 339                         bdbi_databases[i].type,
 340                         bdbi_databases[i].flags | flags,
 341                         bdb->bi_dbenv_mode );
 342 #endif
 343
 344                 if ( rc != 0 ) {
 345                         char    buf[SLAP_TEXT_BUFLEN];
 346
 347                         snprintf( buf, sizeof(buf), "%s/%s",
 348                                 bdb->bi_dbenv_home, bdbi_databases[i].file );
 349                         Debug( LDAP_DEBUG_ANY,
 350                                 "bdb_db_open: db_open(%s) failed: %s (%d)\n",
 351                                 buf, db_strerror(rc), rc );
 352                         return rc;
 353                 }
 354
 355                 flags &= ~(DB_CREATE | DB_RDONLY);
 356                 db->bdi_name = bdbi_databases[i].name;
 357                 bdb->bi_databases[i] = db;
 358         }
 359
 360         bdb->bi_databases[i] = NULL;
 361         bdb->bi_ndatabases = i;
 362
 363         /* get nextid */
 364         rc = bdb_last_id( be, NULL );
 365         if( rc != 0 ) {
 366                 Debug( LDAP_DEBUG_ANY,
 367                         "bdb_db_open: last_id(%s) failed: %s (%d)\n",
 368                         bdb->bi_dbenv_home, db_strerror(rc), rc );
 369                 return rc;
 370         }
 371
 372         XLOCK_ID(bdb->bi_dbenv, &bdb->bi_cache.c_locker);
 373
 374         /* If we're in server mode and time-based checkpointing is enabled,
 375          * submit a task to perform periodic checkpoints.
 376          */
 377         if ( slapMode & SLAP_SERVER_MODE && bdb->bi_txn_cp &&
 378                 bdb->bi_txn_cp_min )  {
 379                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 380                 ldap_pvt_runqueue_insert( &slapd_rq, bdb->bi_txn_cp_min*60,
 381                         bdb_checkpoint, bdb );
 382                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 383         }
 384
 385         /* <insert> open (and create) index databases */
 386         return 0;
 387 }
 388
 389 static int
 390 bdb_db_close( BackendDB *be )
 391 {
 392         int rc;
 393         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 394         struct bdb_db_info *db;
 395         bdb_idl_cache_entry_t *entry, *next_entry;
 396
 397         while( bdb->bi_ndatabases-- ) {
 398                 db = bdb->bi_databases[bdb->bi_ndatabases];
 399                 rc = db->bdi_db->close( db->bdi_db, 0 );
 400                 /* Lower numbered names are not strdup'd */
 401                 if( bdb->bi_ndatabases >= BDB_NDB )
 402                         free( db->bdi_name );
 403                 free( db );
 404         }
 405         free( bdb->bi_databases );
 406         bdb_attr_index_destroy( bdb->bi_attrs );
 407
 408         bdb_cache_release_all (&bdb->bi_cache);
 409
 410         if ( bdb->bi_idl_cache_max_size ) {
 411                 ldap_pvt_thread_rdwr_wlock ( &bdb->bi_idl_tree_rwlock );
 412                 avl_free( bdb->bi_idl_tree, NULL );
 413                 entry = bdb->bi_idl_lru_head;
 414                 while ( entry != NULL ) {
 415                         next_entry = entry->idl_lru_next;
 416                         if ( entry->idl )
 417                                 free( entry->idl );
 418                         free( entry->kstr.bv_val );
 419                         free( entry );
 420                         entry = next_entry;
 421                 }
 422                 ldap_pvt_thread_rdwr_wunlock ( &bdb->bi_idl_tree_rwlock );
 423         }
 424
 425         XLOCK_ID_FREE(bdb->bi_dbenv, bdb->bi_cache.c_locker);
 426
 427         return 0;
 428 }
 429
 430 static int
 431 bdb_db_destroy( BackendDB *be )
 432 {
 433         int rc;
 434         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 435         Operation *ps = NULL;
 436         Operation *psn = NULL;
 437         void *saved_tmpmemctx = NULL;
 438
 439         /* close db environment */
 440         if( bdb->bi_dbenv ) {
 441                 /* force a checkpoint */
 442                 rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
 443                 if( rc != 0 ) {
 444                         Debug( LDAP_DEBUG_ANY,
 445                                 "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 446                                 db_strerror(rc), rc, 0 );
 447                 }
 448
 449                 rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 450                 bdb->bi_dbenv = NULL;
 451                 if( rc != 0 ) {
 452                         Debug( LDAP_DEBUG_ANY,
 453                                 "bdb_db_destroy: close failed: %s (%d)\n",
 454                                 db_strerror(rc), rc, 0 );
 455                         return rc;
 456                 }
 457         }
 458
 459         if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
 460
 461         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
 462         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
 463         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_dntree.bei_kids_mutex );
 464         ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
 465         ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
 466         if ( bdb->bi_idl_cache_max_size ) {
 467                 ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
 468                 ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
 469         }
 470
 471 #ifdef BDB_PSEARCH
 472         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_pslist_rwlock );
 473         ps = LDAP_LIST_FIRST( &bdb->bi_psearch_list );
 474
 475         if ( ps ) {
 476                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 477
 478                 saved_tmpmemctx = ps->o_tmpmemctx;
 479
 480                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 481                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx );
 482                 }
 483                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 484                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx );
 485                 }
 486                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 487                         slap_sl_free(ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 488                 }
 489                 if (ps->ors_filter != NULL) {
 490                         filter_free_x(ps, ps->ors_filter);
 491                 }
 492                 if ( ps->ors_attrs != NULL) {
 493                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 494                 }
 495
 496                 slap_op_free( ps );
 497
 498                 if ( saved_tmpmemctx ) {
 499                         slap_sl_mem_destroy( NULL, saved_tmpmemctx );
 500                 }
 501         }
 502
 503         while ( psn ) {
 504                 ps = psn;
 505                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 506
 507                 saved_tmpmemctx = ps->o_tmpmemctx;
 508
 509                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 510                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx );
 511                 }
 512                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 513                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx );
 514                 }
 515                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 516                         slap_sl_free(ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 517                 }
 518                 if (ps->ors_filter != NULL) {
 519                         filter_free_x(ps, ps->ors_filter);
 520                 }
 521                 if ( ps->ors_attrs != NULL) {
 522                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 523                 }
 524
 525                 slap_op_free( ps );
 526
 527                 if ( saved_tmpmemctx ) {
 528                         slap_sl_mem_destroy( NULL, saved_tmpmemctx );
 529                 }
 530         }
 531 #endif
 532
 533         ch_free( bdb );
 534         be->be_private = NULL;
 535
 536         return 0;
 537 }
 538
 539 int
 540 bdb_back_initialize(
 541         BackendInfo     *bi )
 542 {
 543         static char *controls[] = {
 544                 LDAP_CONTROL_ASSERT,
 545                 LDAP_CONTROL_MANAGEDSAIT,
 546                 LDAP_CONTROL_NOOP,
 547                 LDAP_CONTROL_PAGEDRESULTS,
 548 #ifdef LDAP_CONTROL_SUBENTRIES
 549                 LDAP_CONTROL_SUBENTRIES,
 550 #endif
 551                 LDAP_CONTROL_VALUESRETURNFILTER,
 552 #ifdef LDAP_CONTROL_X_PERMISSIVE_MODIFY
 553                 LDAP_CONTROL_X_PERMISSIVE_MODIFY,
 554 #endif
 555                 NULL
 556         };
 557
 558         /* initialize the underlying database system */
 559         Debug( LDAP_DEBUG_TRACE,
 560                 LDAP_XSTRING(bdb_back_initialize) ": initialize "
 561                 BDB_UCTYPE " backend\n", 0, 0, 0 );
 562
 563         bi->bi_flags |=
 564                 SLAP_BFLAG_INCREMENT |
 565 #ifdef BDB_SUBENTRIES
 566                 SLAP_BFLAG_SUBENTRIES |
 567 #endif
 568                 SLAP_BFLAG_ALIASES |
 569                 SLAP_BFLAG_REFERRALS;
 570
 571         bi->bi_controls = controls;
 572
 573         {       /* version check */
 574                 int major, minor, patch, ver;
 575                 char *version = db_version( &major, &minor, &patch );
 576 #ifdef HAVE_EBCDIC
 577                 char v2[1024];
 578
 579                 /* All our stdio does an ASCII to EBCDIC conversion on
 580                  * the output. Strings from the BDB library are already
 581                  * in EBCDIC; we have to go back and forth...
 582                  */
 583                 strcpy( v2, version );
 584                 __etoa( v2 );
 585                 version = v2;
 586 #endif
 587
 588                 ver = (major << 24) | (minor << 16) | patch;
 589                 if( ver < DB_VERSION_FULL )
 590                 {
 591                         Debug( LDAP_DEBUG_ANY,
 592                                 LDAP_XSTRING(bdb_back_initialize) ": "
 593                                 "BDB library version mismatch:"
 594                                 " expected " DB_VERSION_STRING ","
 595                                 " got %s\n", version, 0, 0 );
 596                 }
 597
 598                 Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_back_initialize)
 599                         ": %s\n", version, 0, 0 );
 600         }
 601
 602         db_env_set_func_free( ber_memfree );
 603         db_env_set_func_malloc( (db_malloc *)ber_memalloc );
 604         db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
 605 #ifndef NO_THREAD
 606         /* This is a no-op on a NO_THREAD build. Leave the default
 607          * alone so that BDB will sleep on interprocess conflicts.
 608          */
 609         db_env_set_func_yield( ldap_pvt_thread_yield );
 610 #endif
 611
 612         {
 613                 static char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 614
 615                 bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
 616                 bdb_uuid.bv_val = uuidbuf;
 617         }
 618
 619         bi->bi_open = 0;
 620         bi->bi_close = 0;
 621         bi->bi_config = 0;
 622         bi->bi_destroy = 0;
 623
 624         bi->bi_db_init = bdb_db_init;
 625         bi->bi_db_config = bdb_db_config;
 626         bi->bi_db_open = bdb_db_open;
 627         bi->bi_db_close = bdb_db_close;
 628         bi->bi_db_destroy = bdb_db_destroy;
 629
 630         bi->bi_op_add = bdb_add;
 631         bi->bi_op_bind = bdb_bind;
 632         bi->bi_op_compare = bdb_compare;
 633         bi->bi_op_delete = bdb_delete;
 634         bi->bi_op_modify = bdb_modify;
 635         bi->bi_op_modrdn = bdb_modrdn;
 636         bi->bi_op_search = bdb_search;
 637
 638         bi->bi_op_unbind = 0;
 639
 640 #if 0   /* DELETE ME */
 641         bi->bi_op_abandon = bdb_abandon;
 642         bi->bi_op_cancel = bdb_cancel;
 643 #endif
 644
 645         bi->bi_extended = bdb_extended;
 646
 647         bi->bi_chk_referrals = bdb_referrals;
 648         bi->bi_operational = bdb_operational;
 649         bi->bi_has_subordinates = bdb_hasSubordinates;
 650         bi->bi_entry_release_rw = bdb_entry_release;
 651         bi->bi_entry_get_rw = bdb_entry_get;
 652
 653         /*
 654          * hooks for slap tools
 655          */
 656         bi->bi_tool_entry_open = bdb_tool_entry_open;
 657         bi->bi_tool_entry_close = bdb_tool_entry_close;
 658         bi->bi_tool_entry_first = bdb_tool_entry_next;
 659         bi->bi_tool_entry_next = bdb_tool_entry_next;
 660         bi->bi_tool_entry_get = bdb_tool_entry_get;
 661         bi->bi_tool_entry_put = bdb_tool_entry_put;
 662         bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
 663         bi->bi_tool_sync = 0;
 664         bi->bi_tool_dn2id_get = bdb_tool_dn2id_get;
 665         bi->bi_tool_id2entry_get = bdb_tool_id2entry_get;
 666         bi->bi_tool_entry_modify = bdb_tool_entry_modify;
 667
 668         bi->bi_connection_init = 0;
 669         bi->bi_connection_destroy = 0;
 670
 671         return 0;
 672 }
 673
 674 #if     (SLAPD_BDB == SLAPD_MOD_DYNAMIC && !defined(BDB_HIER)) || \
 675         (SLAPD_HDB == SLAPD_MOD_DYNAMIC && defined(BDB_HIER))
 676
 677 /* conditionally define the init_module() function */
 678 #ifdef BDB_HIER
 679 SLAP_BACKEND_INIT_MODULE( hdb )
 680 #else /* !BDB_HIER */
 681 SLAP_BACKEND_INIT_MODULE( bdb )
 682 #endif /* !BDB_HIER */
 683
 684 #endif /* SLAPD_[BH]DB == SLAPD_MOD_DYNAMIC */
 685