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