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 #include "alock.h"
  28
  29 static const struct bdbi_database {
  30         char *file;
  31         char *name;
  32         int type;
  33         int flags;
  34 } bdbi_databases[] = {
  35         { "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
  36         { "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
  37         { NULL, NULL, 0, 0 }
  38 };
  39
  40 typedef void * db_malloc(size_t);
  41 typedef void * db_realloc(void *, size_t);
  42
  43 static int
  44 bdb_db_init( BackendDB *be )
  45 {
  46         struct bdb_info *bdb;
  47
  48         Debug( LDAP_DEBUG_TRACE,
  49                 LDAP_XSTRING(bdb_db_init) ": Initializing " BDB_UCTYPE " database\n",
  50                 0, 0, 0 );
  51
  52         /* allocate backend-database-specific stuff */
  53         bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
  54
  55         /* DBEnv parameters */
  56         bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
  57         bdb->bi_dbenv_xflags = 0;
  58         bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
  59
  60         bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
  61
  62         bdb->bi_lock_detect = DB_LOCK_DEFAULT;
  63         bdb->bi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
  64         bdb->bi_search_stack = NULL;
  65
  66         ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
  67         ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
  68         ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_mutex );
  69         ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_dntree.bei_kids_mutex );
  70         ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
  71
  72         be->be_private = bdb;
  73         be->be_cf_table = be->bd_info->bi_cf_table;
  74
  75         return 0;
  76 }
  77
  78 static void *
  79 bdb_checkpoint( void *ctx, void *arg )
  80 {
  81         struct re_s *rtask = arg;
  82         struct bdb_info *bdb = rtask->arg;
  83
  84         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
  85                 bdb->bi_txn_cp_min, 0 );
  86         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
  87         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
  88         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
  89         return NULL;
  90 }
  91
  92 static int
  93 bdb_db_open( BackendDB *be )
  94 {
  95         int rc, i;
  96         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  97         u_int32_t flags;
  98 #ifdef HAVE_EBCDIC
  99         char path[MAXPATHLEN];
 100 #endif
 101
 102         Debug( LDAP_DEBUG_ARGS,
 103                 "bdb_db_open: %s\n",
 104                 be->be_suffix[0].bv_val, 0, 0 );
 105
 106 #ifndef BDB_MULTIPLE_SUFFIXES
 107         if ( be->be_suffix[1].bv_val ) {
 108         Debug( LDAP_DEBUG_ANY,
 109                 "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
 110                 return -1;
 111         }
 112 #endif
 113         /* we should check existance of dbenv_home and db_directory */
 114
 115         rc = db_env_create( &bdb->bi_dbenv, 0 );
 116         if( rc != 0 ) {
 117                 Debug( LDAP_DEBUG_ANY,
 118                         "bdb_db_open: db_env_create failed: %s (%d)\n",
 119                         db_strerror(rc), rc, 0 );
 120                 return rc;
 121         }
 122
 123         flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE;
 124
 125         if ( !( slapMode & SLAP_TOOL_QUICK ))
 126                 flags |= DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN;
 127
 128         rc = alock_open( &bdb->bi_alock_info, "slapd", bdb->bi_dbenv_home,
 129                 slapMode & SLAP_TOOL_READONLY ?  ALOCK_LOCKED : ALOCK_UNIQUE );
 130         if( rc == ALOCK_RECOVER ) {
 131                 Debug( LDAP_DEBUG_ANY,
 132                         "bdb_db_open: alock_open: recovery required\n", 0, 0, 0 );
 133                 flags |= DB_RECOVER;
 134         } else if( rc == ALOCK_BUSY ) {
 135                 Debug( LDAP_DEBUG_ANY,
 136                    "bdb_db_open: alock_open: database in use\n", 0, 0, 0 );
 137                 return -1;
 138         } else if( rc != ALOCK_CLEAN ) {
 139                 Debug( LDAP_DEBUG_ANY,
 140                    "bdb_db_open: alock_open: database unstable\n", 0, 0, 0 );
 141                 return -1;
 142         }
 143
 144         /* If a key was set, use shared memory for the BDB environment */
 145         if ( bdb->bi_shm_key ) {
 146                 bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
 147                 flags |= DB_SYSTEM_MEM;
 148         }
 149
 150         bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
 151         bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
 152         bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
 153
 154         /* One long-lived TXN per thread, two TXNs per write op */
 155         bdb->bi_dbenv->set_tx_max( bdb->bi_dbenv, connection_pool_max * 3 );
 156
 157 #ifdef SLAP_ZONE_ALLOC
 158         if ( bdb->bi_cache.c_maxsize ) {
 159                 bdb->bi_cache.c_zctx = slap_zn_mem_create(
 160                                                                 SLAP_ZONE_INITSIZE,
 161                                                                 SLAP_ZONE_MAXSIZE,
 162                                                                 SLAP_ZONE_DELTA,
 163                                                                 SLAP_ZONE_SIZE);
 164         }
 165 #endif
 166
 167         if ( bdb->bi_idl_cache_max_size ) {
 168                 bdb->bi_idl_tree = NULL;
 169                 ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
 170                 ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
 171                 bdb->bi_idl_cache_size = 0;
 172         }
 173
 174 #ifdef BDB_SUBDIRS
 175         {
 176                 char dir[MAXPATHLEN], *ptr;
 177
 178                 if (bdb->bi_dbenv_home[0] == '.') {
 179                         /* If home is a relative path, relative subdirs
 180                          * are just concat'd by BDB. We don't want the
 181                          * path to be concat'd twice, e.g.
 182                          * ./test-db/./test-db/tmp
 183                          */
 184                         ptr = dir;
 185                 } else {
 186                         ptr = lutil_strcopy( dir, bdb->bi_dbenv_home );
 187                         *ptr++ = LDAP_DIRSEP[0];
 188 #ifdef HAVE_EBCDIC
 189                         __atoe( dir );
 190 #endif
 191                 }
 192
 193                 strcpy( ptr, BDB_TMP_SUBDIR );
 194 #ifdef HAVE_EBCDIC
 195                 __atoe( ptr );
 196 #endif
 197                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 198                 if( rc != 0 ) {
 199                         Debug( LDAP_DEBUG_ANY,
 200                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 201                                 dir, db_strerror(rc), rc );
 202                         return rc;
 203                 }
 204
 205                 strcpy( ptr, BDB_LG_SUBDIR );
 206 #ifdef HAVE_EBCDIC
 207                 __atoe( ptr );
 208 #endif
 209                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 210                 if( rc != 0 ) {
 211                         Debug( LDAP_DEBUG_ANY,
 212                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 213                                 dir, db_strerror(rc), rc );
 214                         return rc;
 215                 }
 216
 217                 strcpy( ptr, BDB_DATA_SUBDIR );
 218 #ifdef HAVE_EBCDIC
 219                 __atoe( ptr );
 220 #endif
 221                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 222                 if( rc != 0 ) {
 223                         Debug( LDAP_DEBUG_ANY,
 224                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 225                                 dir, db_strerror(rc), rc );
 226                         return rc;
 227                 }
 228         }
 229 #endif
 230
 231         if( bdb->bi_dbenv_xflags != 0 ) {
 232                 rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
 233                         bdb->bi_dbenv_xflags, 1);
 234                 if( rc != 0 ) {
 235                         Debug( LDAP_DEBUG_ANY,
 236                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 237                                 db_strerror(rc), rc, 0 );
 238                         return rc;
 239                 }
 240         }
 241
 242         Debug( LDAP_DEBUG_TRACE,
 243                 "bdb_db_open: dbenv_open(%s)\n",
 244                 bdb->bi_dbenv_home, 0, 0);
 245
 246 #ifdef HAVE_EBCDIC
 247         strcpy( path, bdb->bi_dbenv_home );
 248         __atoe( path );
 249         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 250                 path,
 251                 flags,
 252                 bdb->bi_dbenv_mode );
 253 #else
 254         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 255                 bdb->bi_dbenv_home,
 256                 flags,
 257                 bdb->bi_dbenv_mode );
 258 #endif
 259         if( rc != 0 ) {
 260                 Debug( LDAP_DEBUG_ANY,
 261                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 262                         db_strerror(rc), rc, 0 );
 263                 return rc;
 264         }
 265         if( flags & DB_RECOVER ) {
 266                 rc = alock_recover (&bdb->bi_alock_info);
 267                 if( rc != 0 ) {
 268                         Debug( LDAP_DEBUG_ANY,
 269                            "bdb_db_open: unable to alock_recover\n", 0, 0, 0 );
 270                         return -1;
 271                 }
 272         }
 273
 274         flags = DB_THREAD | bdb->bi_db_opflags;
 275
 276 #ifdef DB_AUTO_COMMIT
 277         if ( !( slapMode & SLAP_TOOL_QUICK ))
 278                 flags |= DB_AUTO_COMMIT;
 279 #endif
 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         if ( !( slapMode & SLAP_TOOL_QUICK )) {
 373                 XLOCK_ID(bdb->bi_dbenv, &bdb->bi_cache.c_locker);
 374         }
 375
 376         /* If we're in server mode and time-based checkpointing is enabled,
 377          * submit a task to perform periodic checkpoints.
 378          */
 379         if (( slapMode & SLAP_SERVER_MODE ) && bdb->bi_txn_cp &&
 380                 bdb->bi_txn_cp_min )  {
 381                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 382                 ldap_pvt_runqueue_insert( &slapd_rq, bdb->bi_txn_cp_min*60,
 383                         bdb_checkpoint, bdb );
 384                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 385         }
 386
 387         if ( slapMode & SLAP_SERVER_MODE && bdb->bi_db_has_config ) {
 388                 char    buf[SLAP_TEXT_BUFLEN];
 389                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 390                 struct berval bv;
 391
 392                 if ( f ) {
 393                         while ( fgets( buf, sizeof(buf), f )) {
 394                                 ber_str2bv( buf, 0, 1, &bv );
 395                                 if ( bv.bv_val[bv.bv_len-1] == '\n' ) {
 396                                         bv.bv_len--;
 397                                         bv.bv_val[bv.bv_len] = '\0';
 398                                 }
 399                                 /* shouldn't need this, but ... */
 400                                 if ( bv.bv_val[bv.bv_len-1] == '\r' ) {
 401                                         bv.bv_len--;
 402                                         bv.bv_val[bv.bv_len] = '\0';
 403                                 }
 404                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 405                         }
 406                         fclose( f );
 407                 } else {
 408                         /* Eh? It disappeared between config and open?? */
 409                         bdb->bi_db_has_config = 0;
 410                 }
 411
 412         }
 413         bdb->bi_db_is_open = 1;
 414
 415         return 0;
 416 }
 417
 418 static int
 419 bdb_db_close( BackendDB *be )
 420 {
 421         int rc;
 422         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 423         struct bdb_db_info *db;
 424         bdb_idl_cache_entry_t *entry, *next_entry;
 425
 426         bdb->bi_db_is_open = 0;
 427
 428         ber_bvarray_free( bdb->bi_db_config );
 429
 430         while( bdb->bi_ndatabases-- ) {
 431                 db = bdb->bi_databases[bdb->bi_ndatabases];
 432                 rc = db->bdi_db->close( db->bdi_db, 0 );
 433                 /* Lower numbered names are not strdup'd */
 434                 if( bdb->bi_ndatabases >= BDB_NDB )
 435                         free( db->bdi_name );
 436                 free( db );
 437         }
 438         free( bdb->bi_databases );
 439         bdb_attr_index_destroy( bdb->bi_attrs );
 440
 441         bdb_cache_release_all (&bdb->bi_cache);
 442
 443         if ( bdb->bi_idl_cache_max_size ) {
 444                 ldap_pvt_thread_rdwr_wlock ( &bdb->bi_idl_tree_rwlock );
 445                 avl_free( bdb->bi_idl_tree, NULL );
 446                 entry = bdb->bi_idl_lru_head;
 447                 while ( entry != NULL ) {
 448                         next_entry = entry->idl_lru_next;
 449                         if ( entry->idl )
 450                                 free( entry->idl );
 451                         free( entry->kstr.bv_val );
 452                         free( entry );
 453                         entry = next_entry;
 454                 }
 455                 ldap_pvt_thread_rdwr_wunlock ( &bdb->bi_idl_tree_rwlock );
 456         }
 457
 458         if ( !( slapMode & SLAP_TOOL_QUICK )) {
 459                 XLOCK_ID_FREE(bdb->bi_dbenv, bdb->bi_cache.c_locker);
 460         }
 461
 462         return 0;
 463 }
 464
 465 static int
 466 bdb_db_destroy( BackendDB *be )
 467 {
 468         int rc;
 469         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 470
 471         /* close db environment */
 472         if( bdb->bi_dbenv ) {
 473                 /* force a checkpoint */
 474                 if ( !( slapMode & SLAP_TOOL_QUICK )) {
 475                         rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
 476                         if( rc != 0 ) {
 477                                 Debug( LDAP_DEBUG_ANY,
 478                                         "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 479                                         db_strerror(rc), rc, 0 );
 480                         }
 481                 }
 482
 483                 rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 484                 bdb->bi_dbenv = NULL;
 485                 if( rc != 0 ) {
 486                         Debug( LDAP_DEBUG_ANY,
 487                                 "bdb_db_destroy: close failed: %s (%d)\n",
 488                                 db_strerror(rc), rc, 0 );
 489                         return rc;
 490                 }
 491         }
 492
 493         rc = alock_close( &bdb->bi_alock_info );
 494         if( rc != 0 ) {
 495                 Debug( LDAP_DEBUG_ANY,
 496                         "bdb_db_destroy: alock_close failed\n", 0, 0, 0 );
 497                 return -1;
 498         }
 499
 500         if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
 501         if( bdb->bi_db_config_path ) ch_free( bdb->bi_db_config_path );
 502
 503         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
 504         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
 505         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_dntree.bei_kids_mutex );
 506         ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
 507         ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
 508         if ( bdb->bi_idl_cache_max_size ) {
 509                 ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
 510                 ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
 511         }
 512
 513         ch_free( bdb );
 514         be->be_private = NULL;
 515
 516         return 0;
 517 }
 518
 519 int
 520 bdb_back_initialize(
 521         BackendInfo     *bi )
 522 {
 523         int rc;
 524
 525         static char *controls[] = {
 526                 LDAP_CONTROL_ASSERT,
 527                 LDAP_CONTROL_MANAGEDSAIT,
 528                 LDAP_CONTROL_NOOP,
 529                 LDAP_CONTROL_PAGEDRESULTS,
 530 #ifdef LDAP_CONTROL_SUBENTRIES
 531                 LDAP_CONTROL_SUBENTRIES,
 532 #endif
 533 #ifdef LDAP_CONTROL_X_PERMISSIVE_MODIFY
 534                 LDAP_CONTROL_X_PERMISSIVE_MODIFY,
 535 #endif
 536                 NULL
 537         };
 538
 539         /* initialize the underlying database system */
 540         Debug( LDAP_DEBUG_TRACE,
 541                 LDAP_XSTRING(bdb_back_initialize) ": initialize "
 542                 BDB_UCTYPE " backend\n", 0, 0, 0 );
 543
 544         bi->bi_flags |=
 545                 SLAP_BFLAG_INCREMENT |
 546 #ifdef BDB_SUBENTRIES
 547                 SLAP_BFLAG_SUBENTRIES |
 548 #endif
 549                 SLAP_BFLAG_ALIASES |
 550                 SLAP_BFLAG_REFERRALS;
 551
 552         bi->bi_controls = controls;
 553
 554         {       /* version check */
 555                 int major, minor, patch, ver;
 556                 char *version = db_version( &major, &minor, &patch );
 557 #ifdef HAVE_EBCDIC
 558                 char v2[1024];
 559
 560                 /* All our stdio does an ASCII to EBCDIC conversion on
 561                  * the output. Strings from the BDB library are already
 562                  * in EBCDIC; we have to go back and forth...
 563                  */
 564                 strcpy( v2, version );
 565                 __etoa( v2 );
 566                 version = v2;
 567 #endif
 568
 569                 ver = (major << 24) | (minor << 16) | patch;
 570                 if( ver != DB_VERSION_FULL ) {
 571                         /* fail if a versions don't match */
 572                         Debug( LDAP_DEBUG_ANY,
 573                                 LDAP_XSTRING(bdb_back_initialize) ": "
 574                                 "BDB library version mismatch:"
 575                                 " expected " DB_VERSION_STRING ","
 576                                 " got %s\n", version, 0, 0 );
 577                         return -1;
 578                 }
 579
 580                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_back_initialize)
 581                         ": %s\n", version, 0, 0 );
 582         }
 583
 584         db_env_set_func_free( ber_memfree );
 585         db_env_set_func_malloc( (db_malloc *)ber_memalloc );
 586         db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
 587 #ifndef NO_THREAD
 588         /* This is a no-op on a NO_THREAD build. Leave the default
 589          * alone so that BDB will sleep on interprocess conflicts.
 590          */
 591         db_env_set_func_yield( ldap_pvt_thread_yield );
 592 #endif
 593
 594         bi->bi_open = 0;
 595         bi->bi_close = 0;
 596         bi->bi_config = 0;
 597         bi->bi_destroy = 0;
 598
 599         bi->bi_db_init = bdb_db_init;
 600         bi->bi_db_config = config_generic_wrapper;
 601         bi->bi_db_open = bdb_db_open;
 602         bi->bi_db_close = bdb_db_close;
 603         bi->bi_db_destroy = bdb_db_destroy;
 604
 605         bi->bi_op_add = bdb_add;
 606         bi->bi_op_bind = bdb_bind;
 607         bi->bi_op_compare = bdb_compare;
 608         bi->bi_op_delete = bdb_delete;
 609         bi->bi_op_modify = bdb_modify;
 610         bi->bi_op_modrdn = bdb_modrdn;
 611         bi->bi_op_search = bdb_search;
 612
 613         bi->bi_op_unbind = 0;
 614
 615         bi->bi_extended = bdb_extended;
 616
 617         bi->bi_chk_referrals = bdb_referrals;
 618         bi->bi_operational = bdb_operational;
 619         bi->bi_has_subordinates = bdb_hasSubordinates;
 620         bi->bi_entry_release_rw = bdb_entry_release;
 621         bi->bi_entry_get_rw = bdb_entry_get;
 622
 623         /*
 624          * hooks for slap tools
 625          */
 626         bi->bi_tool_entry_open = bdb_tool_entry_open;
 627         bi->bi_tool_entry_close = bdb_tool_entry_close;
 628         bi->bi_tool_entry_first = bdb_tool_entry_next;
 629         bi->bi_tool_entry_next = bdb_tool_entry_next;
 630         bi->bi_tool_entry_get = bdb_tool_entry_get;
 631         bi->bi_tool_entry_put = bdb_tool_entry_put;
 632         bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
 633         bi->bi_tool_sync = 0;
 634         bi->bi_tool_dn2id_get = bdb_tool_dn2id_get;
 635         bi->bi_tool_id2entry_get = bdb_tool_id2entry_get;
 636         bi->bi_tool_entry_modify = bdb_tool_entry_modify;
 637
 638         bi->bi_connection_init = 0;
 639         bi->bi_connection_destroy = 0;
 640
 641         rc = bdb_back_init_cf( bi );
 642
 643         return rc;
 644 }
 645
 646 #if     (SLAPD_BDB == SLAPD_MOD_DYNAMIC && !defined(BDB_HIER)) || \
 647         (SLAPD_HDB == SLAPD_MOD_DYNAMIC && defined(BDB_HIER))
 648
 649 /* conditionally define the init_module() function */
 650 #ifdef BDB_HIER
 651 SLAP_BACKEND_INIT_MODULE( hdb )
 652 #else /* !BDB_HIER */
 653 SLAP_BACKEND_INIT_MODULE( bdb )
 654 #endif /* !BDB_HIER */
 655
 656 #endif /* SLAPD_[BH]DB == SLAPD_MOD_DYNAMIC */
 657