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 #if 0
 105 int
 106 bdb_bt_compare(
 107         DB *db,
 108         const DBT *usrkey,
 109         const DBT *curkey )
 110 {
 111         unsigned char *u, *c;
 112         int i, x;
 113
 114         u = usrkey->data;
 115         c = curkey->data;
 116
 117 #ifdef WORDS_BIGENDIAN
 118         for( i = 0; i < (int)sizeof(ID); i++)
 119 #else
 120         for( i = sizeof(ID)-1; i >= 0; i--)
 121 #endif
 122         {
 123                 x = u[i] - c[i];
 124                 if( x ) return x;
 125         }
 126
 127         return 0;
 128 }
 129 #endif
 130
 131 static void *
 132 bdb_checkpoint( void *ctx, void *arg )
 133 {
 134         struct re_s *rtask = arg;
 135         struct bdb_info *bdb = rtask->arg;
 136
 137         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
 138                 bdb->bi_txn_cp_min, 0 );
 139         return NULL;
 140 }
 141
 142 static int
 143 bdb_db_open( BackendDB *be )
 144 {
 145         int rc, i;
 146         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 147         u_int32_t flags;
 148 #ifdef HAVE_EBCDIC
 149         char path[MAXPATHLEN];
 150 #endif
 151
 152         Debug( LDAP_DEBUG_ARGS,
 153                 "bdb_db_open: %s\n",
 154                 be->be_suffix[0].bv_val, 0, 0 );
 155
 156 #ifndef BDB_MULTIPLE_SUFFIXES
 157         if ( be->be_suffix[1].bv_val ) {
 158         Debug( LDAP_DEBUG_ANY,
 159                 "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
 160                 return -1;
 161         }
 162 #endif
 163         /* we should check existance of dbenv_home and db_directory */
 164
 165         rc = db_env_create( &bdb->bi_dbenv, 0 );
 166         if( rc != 0 ) {
 167                 Debug( LDAP_DEBUG_ANY,
 168                         "bdb_db_open: db_env_create failed: %s (%d)\n",
 169                         db_strerror(rc), rc, 0 );
 170                 return rc;
 171         }
 172
 173         flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
 174                 | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN;
 175
 176 #if 0
 177         /* Never do automatic recovery, must perform it manually.
 178          * Otherwise restarting with gentlehup will corrupt the
 179          * database.
 180          */
 181         if( !(slapMode & SLAP_TOOL_MODE) ) flags |= DB_RECOVER;
 182 #endif
 183
 184         /* If a key was set, use shared memory for the BDB environment */
 185         if ( bdb->bi_shm_key ) {
 186                 bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
 187                 flags |= DB_SYSTEM_MEM;
 188         }
 189
 190         bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
 191         bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
 192         bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
 193
 194         /* One long-lived TXN per thread, two TXNs per write op */
 195         bdb->bi_dbenv->set_tx_max( bdb->bi_dbenv, connection_pool_max * 3 );
 196
 197 #ifdef SLAP_ZONE_ALLOC
 198         if ( bdb->bi_cache.c_maxsize ) {
 199                 bdb->bi_cache.c_zctx = slap_zn_mem_create(
 200                                                                 SLAP_ZONE_INITSIZE,
 201                                                                 SLAP_ZONE_MAXSIZE,
 202                                                                 SLAP_ZONE_DELTA,
 203                                                                 SLAP_ZONE_SIZE);
 204         }
 205 #endif
 206
 207         if ( bdb->bi_idl_cache_max_size ) {
 208                 bdb->bi_idl_tree = NULL;
 209                 ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
 210                 ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
 211                 bdb->bi_idl_cache_size = 0;
 212         }
 213
 214 #ifdef BDB_SUBDIRS
 215         {
 216                 char dir[MAXPATHLEN], *ptr;
 217
 218                 if (bdb->bi_dbenv_home[0] == '.') {
 219                         /* If home is a relative path, relative subdirs
 220                          * are just concat'd by BDB. We don't want the
 221                          * path to be concat'd twice, e.g.
 222                          * ./test-db/./test-db/tmp
 223                          */
 224                         ptr = dir;
 225                 } else {
 226                         ptr = lutil_strcopy( dir, bdb->bi_dbenv_home );
 227                         *ptr++ = LDAP_DIRSEP[0];
 228 #ifdef HAVE_EBCDIC
 229                         __atoe( dir );
 230 #endif
 231                 }
 232
 233                 strcpy( ptr, BDB_TMP_SUBDIR );
 234 #ifdef HAVE_EBCDIC
 235                 __atoe( ptr );
 236 #endif
 237                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 238                 if( rc != 0 ) {
 239                         Debug( LDAP_DEBUG_ANY,
 240                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 241                                 dir, db_strerror(rc), rc );
 242                         return rc;
 243                 }
 244
 245                 strcpy( ptr, BDB_LG_SUBDIR );
 246 #ifdef HAVE_EBCDIC
 247                 __atoe( ptr );
 248 #endif
 249                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 250                 if( rc != 0 ) {
 251                         Debug( LDAP_DEBUG_ANY,
 252                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 253                                 dir, db_strerror(rc), rc );
 254                         return rc;
 255                 }
 256
 257                 strcpy( ptr, BDB_DATA_SUBDIR );
 258 #ifdef HAVE_EBCDIC
 259                 __atoe( ptr );
 260 #endif
 261                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 262                 if( rc != 0 ) {
 263                         Debug( LDAP_DEBUG_ANY,
 264                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 265                                 dir, db_strerror(rc), rc );
 266                         return rc;
 267                 }
 268         }
 269 #endif
 270
 271         if( bdb->bi_dbenv_xflags != 0 ) {
 272                 rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
 273                         bdb->bi_dbenv_xflags, 1);
 274                 if( rc != 0 ) {
 275                         Debug( LDAP_DEBUG_ANY,
 276                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 277                                 db_strerror(rc), rc, 0 );
 278                         return rc;
 279                 }
 280         }
 281
 282         Debug( LDAP_DEBUG_TRACE,
 283                 "bdb_db_open: dbenv_open(%s)\n",
 284                 bdb->bi_dbenv_home, 0, 0);
 285
 286 #ifdef HAVE_EBCDIC
 287         strcpy( path, bdb->bi_dbenv_home );
 288         __atoe( path );
 289         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 290                 path,
 291                 flags,
 292                 bdb->bi_dbenv_mode );
 293 #else
 294         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 295                 bdb->bi_dbenv_home,
 296                 flags,
 297                 bdb->bi_dbenv_mode );
 298 #endif
 299         if( rc != 0 ) {
 300                 Debug( LDAP_DEBUG_ANY,
 301                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 302                         db_strerror(rc), rc, 0 );
 303                 return rc;
 304         }
 305
 306         flags = DB_THREAD | bdb->bi_db_opflags;
 307
 308         bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
 309                 BDB_INDICES * sizeof(struct bdb_db_info *) );
 310
 311         /* open (and create) main database */
 312         for( i = 0; bdbi_databases[i].name; i++ ) {
 313                 struct bdb_db_info *db;
 314
 315                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 316
 317                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 318                 if( rc != 0 ) {
 319                         Debug( LDAP_DEBUG_ANY,
 320                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 321                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 322                         return rc;
 323                 }
 324
 325                 if( i == BDB_ID2ENTRY ) {
 326 #if 0
 327                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 328                                 bdb_bt_compare );
 329 #endif
 330                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 331                                 BDB_ID2ENTRY_PAGESIZE );
 332                         if ( slapMode & SLAP_TOOL_READMAIN ) {
 333                                 flags |= DB_RDONLY;
 334                         } else {
 335                                 flags |= DB_CREATE;
 336                         }
 337                 } else {
 338                         rc = db->bdi_db->set_flags( db->bdi_db,
 339                                 DB_DUP | DB_DUPSORT );
 340 #ifndef BDB_HIER
 341 #if 0
 342                         rc = db->bdi_db->set_dup_compare( db->bdi_db,
 343                                 bdb_bt_compare );
 344 #endif
 345                         if ( slapMode & SLAP_TOOL_READONLY ) {
 346                                 flags |= DB_RDONLY;
 347                         } else {
 348                                 flags |= DB_CREATE;
 349                         }
 350 #else
 351                         rc = db->bdi_db->set_dup_compare( db->bdi_db,
 352                                 bdb_dup_compare );
 353 #if 0
 354                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 355                                 bdb_bt_compare );
 356 #endif
 357                         if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
 358                                 flags |= DB_RDONLY;
 359                         } else {
 360                                 flags |= DB_CREATE;
 361                         }
 362 #endif
 363                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 364                                 BDB_PAGESIZE );
 365                 }
 366
 367 #ifdef HAVE_EBCDIC
 368                 strcpy( path, bdbi_databases[i].file );
 369                 __atoe( path );
 370                 rc = DB_OPEN( db->bdi_db,
 371                         path,
 372                 /*      bdbi_databases[i].name, */ NULL,
 373                         bdbi_databases[i].type,
 374                         bdbi_databases[i].flags | flags,
 375                         bdb->bi_dbenv_mode );
 376 #else
 377                 rc = DB_OPEN( db->bdi_db,
 378                         bdbi_databases[i].file,
 379                 /*      bdbi_databases[i].name, */ NULL,
 380                         bdbi_databases[i].type,
 381                         bdbi_databases[i].flags | flags,
 382                         bdb->bi_dbenv_mode );
 383 #endif
 384
 385                 if ( rc != 0 ) {
 386                         char    buf[SLAP_TEXT_BUFLEN];
 387
 388                         snprintf( buf, sizeof(buf), "%s/%s",
 389                                 bdb->bi_dbenv_home, bdbi_databases[i].file );
 390                         Debug( LDAP_DEBUG_ANY,
 391                                 "bdb_db_open: db_open(%s) failed: %s (%d)\n",
 392                                 buf, db_strerror(rc), rc );
 393                         return rc;
 394                 }
 395
 396                 flags &= ~(DB_CREATE | DB_RDONLY);
 397                 db->bdi_name = bdbi_databases[i].name;
 398                 bdb->bi_databases[i] = db;
 399         }
 400
 401         bdb->bi_databases[i] = NULL;
 402         bdb->bi_ndatabases = i;
 403
 404         /* get nextid */
 405         rc = bdb_last_id( be, NULL );
 406         if( rc != 0 ) {
 407                 Debug( LDAP_DEBUG_ANY,
 408                         "bdb_db_open: last_id(%s) failed: %s (%d)\n",
 409                         bdb->bi_dbenv_home, db_strerror(rc), rc );
 410                 return rc;
 411         }
 412
 413         XLOCK_ID(bdb->bi_dbenv, &bdb->bi_cache.c_locker);
 414
 415         /* If we're in server mode and time-based checkpointing is enabled,
 416          * submit a task to perform periodic checkpoints.
 417          */
 418         if ( slapMode & SLAP_SERVER_MODE && bdb->bi_txn_cp &&
 419                 bdb->bi_txn_cp_min )  {
 420                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 421                 ldap_pvt_runqueue_insert( &slapd_rq, bdb->bi_txn_cp_min*60,
 422                         bdb_checkpoint, bdb );
 423                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 424         }
 425
 426         /* <insert> open (and create) index databases */
 427         return 0;
 428 }
 429
 430 static int
 431 bdb_db_close( BackendDB *be )
 432 {
 433         int rc;
 434         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 435         struct bdb_db_info *db;
 436         bdb_idl_cache_entry_t *entry, *next_entry;
 437
 438         while( bdb->bi_ndatabases-- ) {
 439                 db = bdb->bi_databases[bdb->bi_ndatabases];
 440                 rc = db->bdi_db->close( db->bdi_db, 0 );
 441                 /* Lower numbered names are not strdup'd */
 442                 if( bdb->bi_ndatabases >= BDB_NDB )
 443                         free( db->bdi_name );
 444                 free( db );
 445         }
 446         free( bdb->bi_databases );
 447         bdb_attr_index_destroy( bdb->bi_attrs );
 448
 449         bdb_cache_release_all (&bdb->bi_cache);
 450
 451         if ( bdb->bi_idl_cache_max_size ) {
 452                 ldap_pvt_thread_rdwr_wlock ( &bdb->bi_idl_tree_rwlock );
 453                 avl_free( bdb->bi_idl_tree, NULL );
 454                 entry = bdb->bi_idl_lru_head;
 455                 while ( entry != NULL ) {
 456                         next_entry = entry->idl_lru_next;
 457                         if ( entry->idl )
 458                                 free( entry->idl );
 459                         free( entry->kstr.bv_val );
 460                         free( entry );
 461                         entry = next_entry;
 462                 }
 463                 ldap_pvt_thread_rdwr_wunlock ( &bdb->bi_idl_tree_rwlock );
 464         }
 465
 466         XLOCK_ID_FREE(bdb->bi_dbenv, bdb->bi_cache.c_locker);
 467
 468         return 0;
 469 }
 470
 471 static int
 472 bdb_db_destroy( BackendDB *be )
 473 {
 474         int rc;
 475         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 476         Operation *ps = NULL;
 477         Operation *psn = NULL;
 478         void *saved_tmpmemctx = NULL;
 479
 480         /* close db environment */
 481         if( bdb->bi_dbenv ) {
 482                 /* force a checkpoint */
 483                 rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
 484                 if( rc != 0 ) {
 485                         Debug( LDAP_DEBUG_ANY,
 486                                 "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 487                                 db_strerror(rc), rc, 0 );
 488                 }
 489
 490                 rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 491                 bdb->bi_dbenv = NULL;
 492                 if( rc != 0 ) {
 493                         Debug( LDAP_DEBUG_ANY,
 494                                 "bdb_db_destroy: close failed: %s (%d)\n",
 495                                 db_strerror(rc), rc, 0 );
 496                         return rc;
 497                 }
 498         }
 499
 500         if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
 501
 502         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
 503         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
 504         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_dntree.bei_kids_mutex );
 505         ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
 506         ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
 507         if ( bdb->bi_idl_cache_max_size ) {
 508                 ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
 509                 ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
 510         }
 511
 512 #ifdef BDB_PSEARCH
 513         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_pslist_rwlock );
 514         ps = LDAP_LIST_FIRST( &bdb->bi_psearch_list );
 515
 516         if ( ps ) {
 517                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 518
 519                 saved_tmpmemctx = ps->o_tmpmemctx;
 520
 521                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 522                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx );
 523                 }
 524                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 525                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx );
 526                 }
 527                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 528                         slap_sl_free(ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 529                 }
 530                 if (ps->ors_filter != NULL) {
 531                         filter_free_x(ps, ps->ors_filter);
 532                 }
 533                 if ( ps->ors_attrs != NULL) {
 534                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 535                 }
 536
 537                 slap_op_free( ps );
 538
 539                 if ( saved_tmpmemctx ) {
 540                         slap_sl_mem_destroy( NULL, saved_tmpmemctx );
 541                 }
 542         }
 543
 544         while ( psn ) {
 545                 ps = psn;
 546                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 547
 548                 saved_tmpmemctx = ps->o_tmpmemctx;
 549
 550                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 551                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx );
 552                 }
 553                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 554                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx );
 555                 }
 556                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 557                         slap_sl_free(ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 558                 }
 559                 if (ps->ors_filter != NULL) {
 560                         filter_free_x(ps, ps->ors_filter);
 561                 }
 562                 if ( ps->ors_attrs != NULL) {
 563                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 564                 }
 565
 566                 slap_op_free( ps );
 567
 568                 if ( saved_tmpmemctx ) {
 569                         slap_sl_mem_destroy( NULL, saved_tmpmemctx );
 570                 }
 571         }
 572 #endif
 573
 574         ch_free( bdb );
 575         be->be_private = NULL;
 576
 577         return 0;
 578 }
 579
 580 int
 581 bdb_back_initialize(
 582         BackendInfo     *bi )
 583 {
 584         static char *controls[] = {
 585                 LDAP_CONTROL_ASSERT,
 586                 LDAP_CONTROL_MANAGEDSAIT,
 587                 LDAP_CONTROL_NOOP,
 588                 LDAP_CONTROL_PAGEDRESULTS,
 589 #ifdef LDAP_CONTROL_SUBENTRIES
 590                 LDAP_CONTROL_SUBENTRIES,
 591 #endif
 592                 LDAP_CONTROL_VALUESRETURNFILTER,
 593 #ifdef LDAP_CONTROL_X_PERMISSIVE_MODIFY
 594                 LDAP_CONTROL_X_PERMISSIVE_MODIFY,
 595 #endif
 596                 NULL
 597         };
 598
 599         /* initialize the underlying database system */
 600         Debug( LDAP_DEBUG_TRACE,
 601                 LDAP_XSTRING(bdb_back_initialize) ": initialize "
 602                 BDB_UCTYPE " backend\n", 0, 0, 0 );
 603
 604         bi->bi_flags |=
 605                 SLAP_BFLAG_INCREMENT |
 606 #ifdef BDB_SUBENTRIES
 607                 SLAP_BFLAG_SUBENTRIES |
 608 #endif
 609                 SLAP_BFLAG_ALIASES |
 610                 SLAP_BFLAG_REFERRALS;
 611
 612         bi->bi_controls = controls;
 613
 614         {       /* version check */
 615                 int major, minor, patch, ver;
 616                 char *version = db_version( &major, &minor, &patch );
 617 #ifdef HAVE_EBCDIC
 618                 char v2[1024];
 619
 620                 /* All our stdio does an ASCII to EBCDIC conversion on
 621                  * the output. Strings from the BDB library are already
 622                  * in EBCDIC; we have to go back and forth...
 623                  */
 624                 strcpy( v2, version );
 625                 __etoa( v2 );
 626                 version = v2;
 627 #endif
 628
 629                 ver = (major << 24) | (minor << 16) | patch;
 630                 if( ver < DB_VERSION_FULL )
 631                 {
 632                         Debug( LDAP_DEBUG_ANY,
 633                                 LDAP_XSTRING(bdb_back_initialize) ": "
 634                                 "BDB library version mismatch:"
 635                                 " expected " DB_VERSION_STRING ","
 636                                 " got %s\n", version, 0, 0 );
 637                 }
 638
 639                 Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_back_initialize)
 640                         ": %s\n", version, 0, 0 );
 641         }
 642
 643         db_env_set_func_free( ber_memfree );
 644         db_env_set_func_malloc( (db_malloc *)ber_memalloc );
 645         db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
 646 #ifndef NO_THREAD
 647         /* This is a no-op on a NO_THREAD build. Leave the default
 648          * alone so that BDB will sleep on interprocess conflicts.
 649          */
 650         db_env_set_func_yield( ldap_pvt_thread_yield );
 651 #endif
 652
 653         {
 654                 static char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 655
 656                 bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
 657                 bdb_uuid.bv_val = uuidbuf;
 658         }
 659
 660         bi->bi_open = 0;
 661         bi->bi_close = 0;
 662         bi->bi_config = 0;
 663         bi->bi_destroy = 0;
 664
 665         bi->bi_db_init = bdb_db_init;
 666         bi->bi_db_config = bdb_db_config;
 667         bi->bi_db_open = bdb_db_open;
 668         bi->bi_db_close = bdb_db_close;
 669         bi->bi_db_destroy = bdb_db_destroy;
 670
 671         bi->bi_op_add = bdb_add;
 672         bi->bi_op_bind = bdb_bind;
 673         bi->bi_op_compare = bdb_compare;
 674         bi->bi_op_delete = bdb_delete;
 675         bi->bi_op_modify = bdb_modify;
 676         bi->bi_op_modrdn = bdb_modrdn;
 677         bi->bi_op_search = bdb_search;
 678
 679         bi->bi_op_unbind = 0;
 680
 681 #if 0   /* DELETE ME */
 682         bi->bi_op_abandon = bdb_abandon;
 683         bi->bi_op_cancel = bdb_cancel;
 684 #endif
 685
 686         bi->bi_extended = bdb_extended;
 687
 688         bi->bi_chk_referrals = bdb_referrals;
 689         bi->bi_operational = bdb_operational;
 690         bi->bi_has_subordinates = bdb_hasSubordinates;
 691         bi->bi_entry_release_rw = bdb_entry_release;
 692         bi->bi_entry_get_rw = bdb_entry_get;
 693
 694         /*
 695          * hooks for slap tools
 696          */
 697         bi->bi_tool_entry_open = bdb_tool_entry_open;
 698         bi->bi_tool_entry_close = bdb_tool_entry_close;
 699         bi->bi_tool_entry_first = bdb_tool_entry_next;
 700         bi->bi_tool_entry_next = bdb_tool_entry_next;
 701         bi->bi_tool_entry_get = bdb_tool_entry_get;
 702         bi->bi_tool_entry_put = bdb_tool_entry_put;
 703         bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
 704         bi->bi_tool_sync = 0;
 705         bi->bi_tool_dn2id_get = bdb_tool_dn2id_get;
 706         bi->bi_tool_id2entry_get = bdb_tool_id2entry_get;
 707         bi->bi_tool_entry_modify = bdb_tool_entry_modify;
 708
 709         bi->bi_connection_init = 0;
 710         bi->bi_connection_destroy = 0;
 711
 712         return 0;
 713 }
 714
 715 #if     (SLAPD_BDB == SLAPD_MOD_DYNAMIC && !defined(BDB_HIER)) || \
 716         (SLAPD_HDB == SLAPD_MOD_DYNAMIC && defined(BDB_HIER))
 717
 718 /* conditionally define the init_module() function */
 719 #ifdef BDB_HIER
 720 SLAP_BACKEND_INIT_MODULE( hdb )
 721 #else /* !BDB_HIER */
 722 SLAP_BACKEND_INIT_MODULE( bdb )
 723 #endif /* !BDB_HIER */
 724
 725 #endif /* SLAPD_[BH]DB == SLAPD_MOD_DYNAMIC */
 726