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 2000-2004 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         if ( bdb->bi_idl_cache_max_size ) {
 196                 bdb->bi_idl_tree = NULL;
 197                 ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
 198                 ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
 199                 bdb->bi_idl_cache_size = 0;
 200         }
 201
 202 #ifdef BDB_SUBDIRS
 203         {
 204                 char dir[MAXPATHLEN], *ptr;
 205
 206                 if (bdb->bi_dbenv_home[0] == '.') {
 207                         /* If home is a relative path, relative subdirs
 208                          * are just concat'd by BDB. We don't want the
 209                          * path to be concat'd twice, e.g.
 210                          * ./test-db/./test-db/tmp
 211                          */
 212                         ptr = dir;
 213                 } else {
 214                         ptr = lutil_strcopy( dir, bdb->bi_dbenv_home );
 215                         *ptr++ = LDAP_DIRSEP[0];
 216 #ifdef HAVE_EBCDIC
 217                         __atoe( dir );
 218 #endif
 219                 }
 220
 221                 strcpy( ptr, BDB_TMP_SUBDIR );
 222 #ifdef HAVE_EBCDIC
 223                 __atoe( ptr );
 224 #endif
 225                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 226                 if( rc != 0 ) {
 227                         Debug( LDAP_DEBUG_ANY,
 228                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 229                                 dir, db_strerror(rc), rc );
 230                         return rc;
 231                 }
 232
 233                 strcpy( ptr, BDB_LG_SUBDIR );
 234 #ifdef HAVE_EBCDIC
 235                 __atoe( ptr );
 236 #endif
 237                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 238                 if( rc != 0 ) {
 239                         Debug( LDAP_DEBUG_ANY,
 240                                 "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 241                                 dir, db_strerror(rc), rc );
 242                         return rc;
 243                 }
 244
 245                 strcpy( ptr, BDB_DATA_SUBDIR );
 246 #ifdef HAVE_EBCDIC
 247                 __atoe( ptr );
 248 #endif
 249                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 250                 if( rc != 0 ) {
 251                         Debug( LDAP_DEBUG_ANY,
 252                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 253                                 dir, db_strerror(rc), rc );
 254                         return rc;
 255                 }
 256         }
 257 #endif
 258
 259         if( bdb->bi_dbenv_xflags != 0 ) {
 260                 rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
 261                         bdb->bi_dbenv_xflags, 1);
 262                 if( rc != 0 ) {
 263                         Debug( LDAP_DEBUG_ANY,
 264                                 "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
 265                                 db_strerror(rc), rc, 0 );
 266                         return rc;
 267                 }
 268         }
 269
 270         Debug( LDAP_DEBUG_TRACE,
 271                 "bdb_db_open: dbenv_open(%s)\n",
 272                 bdb->bi_dbenv_home, 0, 0);
 273
 274 #ifdef HAVE_EBCDIC
 275         strcpy( path, bdb->bi_dbenv_home );
 276         __atoe( path );
 277         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 278                 path,
 279                 flags,
 280                 bdb->bi_dbenv_mode );
 281 #else
 282         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 283                 bdb->bi_dbenv_home,
 284                 flags,
 285                 bdb->bi_dbenv_mode );
 286 #endif
 287         if( rc != 0 ) {
 288                 Debug( LDAP_DEBUG_ANY,
 289                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 290                         db_strerror(rc), rc, 0 );
 291                 return rc;
 292         }
 293
 294         flags = DB_THREAD | bdb->bi_db_opflags;
 295
 296         bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
 297                 BDB_INDICES * sizeof(struct bdb_db_info *) );
 298
 299         /* open (and create) main database */
 300         for( i = 0; bdbi_databases[i].name; i++ ) {
 301                 struct bdb_db_info *db;
 302
 303                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 304
 305                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 306                 if( rc != 0 ) {
 307                         Debug( LDAP_DEBUG_ANY,
 308                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 309                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 310                         return rc;
 311                 }
 312
 313                 if( i == BDB_ID2ENTRY ) {
 314                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 315                                 bdb_bt_compare );
 316                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 317                                 BDB_ID2ENTRY_PAGESIZE );
 318                         if ( slapMode & SLAP_TOOL_READMAIN ) {
 319                                 flags |= DB_RDONLY;
 320                         } else {
 321                                 flags |= DB_CREATE;
 322                         }
 323                 } else {
 324                         rc = db->bdi_db->set_flags( db->bdi_db,
 325                                 DB_DUP | DB_DUPSORT );
 326 #ifndef BDB_HIER
 327                         rc = db->bdi_db->set_dup_compare( db->bdi_db,
 328                                 bdb_bt_compare );
 329                         if ( slapMode & SLAP_TOOL_READONLY ) {
 330                                 flags |= DB_RDONLY;
 331                         } else {
 332                                 flags |= DB_CREATE;
 333                         }
 334 #else
 335                         rc = db->bdi_db->set_dup_compare( db->bdi_db,
 336                                 bdb_dup_compare );
 337                         rc = db->bdi_db->set_bt_compare( db->bdi_db,
 338                                 bdb_bt_compare );
 339                         if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
 340                                 flags |= DB_RDONLY;
 341                         } else {
 342                                 flags |= DB_CREATE;
 343                         }
 344 #endif
 345                         rc = db->bdi_db->set_pagesize( db->bdi_db,
 346                                 BDB_PAGESIZE );
 347                 }
 348
 349 #ifdef HAVE_EBCDIC
 350                 strcpy( path, bdbi_databases[i].file );
 351                 __atoe( path );
 352                 rc = DB_OPEN( db->bdi_db,
 353                         path,
 354                 /*      bdbi_databases[i].name, */ NULL,
 355                         bdbi_databases[i].type,
 356                         bdbi_databases[i].flags | flags,
 357                         bdb->bi_dbenv_mode );
 358 #else
 359                 rc = DB_OPEN( db->bdi_db,
 360                         bdbi_databases[i].file,
 361                 /*      bdbi_databases[i].name, */ NULL,
 362                         bdbi_databases[i].type,
 363                         bdbi_databases[i].flags | flags,
 364                         bdb->bi_dbenv_mode );
 365 #endif
 366
 367                 if( rc != 0 ) {
 368                         Debug( LDAP_DEBUG_ANY,
 369                                 "bdb_db_open: db_open(%s) failed: %s (%d)\n",
 370                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 371                         return rc;
 372                 }
 373
 374                 flags &= ~(DB_CREATE | DB_RDONLY);
 375                 db->bdi_name = bdbi_databases[i].name;
 376                 bdb->bi_databases[i] = db;
 377         }
 378
 379         bdb->bi_databases[i] = NULL;
 380         bdb->bi_ndatabases = i;
 381
 382         /* get nextid */
 383         rc = bdb_last_id( be, NULL );
 384         if( rc != 0 ) {
 385                 Debug( LDAP_DEBUG_ANY,
 386                         "bdb_db_open: last_id(%s) failed: %s (%d)\n",
 387                         bdb->bi_dbenv_home, db_strerror(rc), rc );
 388                 return rc;
 389         }
 390
 391         XLOCK_ID(bdb->bi_dbenv, &bdb->bi_cache.c_locker);
 392
 393         /* If we're in server mode and time-based checkpointing is enabled,
 394          * submit a task to perform periodic checkpoints.
 395          */
 396         if ( slapMode & SLAP_SERVER_MODE && bdb->bi_txn_cp &&
 397                 bdb->bi_txn_cp_min )  {
 398                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 399                 ldap_pvt_runqueue_insert( &slapd_rq, bdb->bi_txn_cp_min*60,
 400                         bdb_checkpoint, bdb );
 401                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 402         }
 403
 404         /* <insert> open (and create) index databases */
 405         return 0;
 406 }
 407
 408 static int
 409 bdb_db_close( BackendDB *be )
 410 {
 411         int rc;
 412         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 413         struct bdb_db_info *db;
 414         bdb_idl_cache_entry_t *entry, *next_entry;
 415
 416         while( bdb->bi_ndatabases-- ) {
 417                 db = bdb->bi_databases[bdb->bi_ndatabases];
 418                 rc = db->bdi_db->close( db->bdi_db, 0 );
 419                 /* Lower numbered names are not strdup'd */
 420                 if( bdb->bi_ndatabases >= BDB_NDB )
 421                         free( db->bdi_name );
 422                 free( db );
 423         }
 424         free( bdb->bi_databases );
 425         bdb_attr_index_destroy( bdb->bi_attrs );
 426
 427         bdb_cache_release_all (&bdb->bi_cache);
 428
 429         if ( bdb->bi_idl_cache_max_size ) {
 430                 ldap_pvt_thread_rdwr_wlock ( &bdb->bi_idl_tree_rwlock );
 431                 avl_free( bdb->bi_idl_tree, NULL );
 432                 entry = bdb->bi_idl_lru_head;
 433                 while ( entry != NULL ) {
 434                         next_entry = entry->idl_lru_next;
 435                         if ( entry->idl )
 436                                 free( entry->idl );
 437                         free( entry->kstr.bv_val );
 438                         free( entry );
 439                         entry = next_entry;
 440                 }
 441                 ldap_pvt_thread_rdwr_wunlock ( &bdb->bi_idl_tree_rwlock );
 442         }
 443
 444         XLOCK_ID_FREE(bdb->bi_dbenv, bdb->bi_cache.c_locker);
 445
 446         return 0;
 447 }
 448
 449 static int
 450 bdb_db_destroy( BackendDB *be )
 451 {
 452         int rc;
 453         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 454         Operation *ps = NULL;
 455         Operation *psn = NULL;
 456         void *saved_tmpmemctx = NULL;
 457
 458         /* close db environment */
 459         if( bdb->bi_dbenv ) {
 460                 /* force a checkpoint */
 461                 rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
 462                 if( rc != 0 ) {
 463                         Debug( LDAP_DEBUG_ANY,
 464                                 "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 465                                 db_strerror(rc), rc, 0 );
 466                 }
 467
 468                 rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 469                 bdb->bi_dbenv = NULL;
 470                 if( rc != 0 ) {
 471                         Debug( LDAP_DEBUG_ANY,
 472                                 "bdb_db_destroy: close failed: %s (%d)\n",
 473                                 db_strerror(rc), rc, 0 );
 474                         return rc;
 475                 }
 476         }
 477
 478         if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
 479
 480         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
 481         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
 482         ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_dntree.bei_kids_mutex );
 483         ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
 484         ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
 485         if ( bdb->bi_idl_cache_max_size ) {
 486                 ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
 487                 ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
 488         }
 489
 490 #ifdef BDB_PSEARCH
 491         ldap_pvt_thread_rdwr_destroy ( &bdb->bi_pslist_rwlock );
 492         ps = LDAP_LIST_FIRST( &bdb->bi_psearch_list );
 493
 494         if ( ps ) {
 495                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 496
 497                 saved_tmpmemctx = ps->o_tmpmemctx;
 498
 499                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 500                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx );
 501                 }
 502                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 503                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx );
 504                 }
 505                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 506                         slap_sl_free(ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 507                 }
 508                 if (ps->ors_filter != NULL) {
 509                         filter_free_x(ps, ps->ors_filter);
 510                 }
 511                 if ( ps->ors_attrs != NULL) {
 512                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 513                 }
 514
 515                 slap_op_free( ps );
 516
 517                 if ( saved_tmpmemctx ) {
 518                         slap_sl_mem_destroy( NULL, saved_tmpmemctx );
 519                 }
 520         }
 521
 522         while ( psn ) {
 523                 ps = psn;
 524                 psn = LDAP_LIST_NEXT( ps, o_ps_link );
 525
 526                 saved_tmpmemctx = ps->o_tmpmemctx;
 527
 528                 if (!BER_BVISNULL(&ps->o_req_dn)) {
 529                         slap_sl_free( ps->o_req_dn.bv_val, ps->o_tmpmemctx );
 530                 }
 531                 if (!BER_BVISNULL(&ps->o_req_ndn)) {
 532                         slap_sl_free( ps->o_req_ndn.bv_val, ps->o_tmpmemctx );
 533                 }
 534                 if (!BER_BVISNULL(&ps->ors_filterstr)) {
 535                         slap_sl_free(ps->ors_filterstr.bv_val, ps->o_tmpmemctx);
 536                 }
 537                 if (ps->ors_filter != NULL) {
 538                         filter_free_x(ps, ps->ors_filter);
 539                 }
 540                 if ( ps->ors_attrs != NULL) {
 541                         ps->o_tmpfree(ps->ors_attrs, ps->o_tmpmemctx);
 542                 }
 543
 544                 slap_op_free( ps );
 545
 546                 if ( saved_tmpmemctx ) {
 547                         slap_sl_mem_destroy( NULL, saved_tmpmemctx );
 548                 }
 549         }
 550 #endif
 551
 552         ch_free( bdb );
 553         be->be_private = NULL;
 554
 555         return 0;
 556 }
 557
 558 int
 559 bdb_back_initialize(
 560         BackendInfo     *bi )
 561 {
 562         static char *controls[] = {
 563                 LDAP_CONTROL_ASSERT,
 564                 LDAP_CONTROL_MANAGEDSAIT,
 565                 LDAP_CONTROL_NOOP,
 566                 LDAP_CONTROL_PAGEDRESULTS,
 567 #ifdef LDAP_CONTROL_SUBENTRIES
 568                 LDAP_CONTROL_SUBENTRIES,
 569 #endif
 570                 LDAP_CONTROL_VALUESRETURNFILTER,
 571                 NULL
 572         };
 573
 574         /* initialize the underlying database system */
 575         Debug( LDAP_DEBUG_TRACE,
 576                 LDAP_XSTRING(bdb_back_initialize) ": initialize "
 577                 BDB_UCTYPE " backend\n", 0, 0, 0 );
 578
 579         bi->bi_flags |=
 580                 SLAP_BFLAG_INCREMENT |
 581 #ifdef BDB_SUBENTRIES
 582                 SLAP_BFLAG_SUBENTRIES |
 583 #endif
 584                 SLAP_BFLAG_ALIASES |
 585                 SLAP_BFLAG_REFERRALS;
 586
 587         bi->bi_controls = controls;
 588
 589         {       /* version check */
 590                 int major, minor, patch, ver;
 591                 char *version = db_version( &major, &minor, &patch );
 592 #ifdef HAVE_EBCDIC
 593                 char v2[1024];
 594
 595                 /* All our stdio does an ASCII to EBCDIC conversion on
 596                  * the output. Strings from the BDB library are already
 597                  * in EBCDIC; we have to go back and forth...
 598                  */
 599                 strcpy( v2, version );
 600                 __etoa( v2 );
 601                 version = v2;
 602 #endif
 603
 604                 ver = (major << 24) | (minor << 16) | patch;
 605                 if( ver < DB_VERSION_FULL )
 606                 {
 607                         Debug( LDAP_DEBUG_ANY,
 608                                 LDAP_XSTRING(bdb_back_initialize) ": "
 609                                 "BDB library version mismatch:"
 610                                 " expected " DB_VERSION_STRING ","
 611                                 " got %s\n", version, 0, 0 );
 612                 }
 613
 614                 Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_back_initialize)
 615                         ": %s\n", version, 0, 0 );
 616         }
 617
 618         db_env_set_func_free( ber_memfree );
 619         db_env_set_func_malloc( (db_malloc *)ber_memalloc );
 620         db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
 621 #ifndef NO_THREAD
 622         /* This is a no-op on a NO_THREAD build. Leave the default
 623          * alone so that BDB will sleep on interprocess conflicts.
 624          */
 625         db_env_set_func_yield( ldap_pvt_thread_yield );
 626 #endif
 627
 628         {
 629                 static char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 630
 631                 bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
 632                 bdb_uuid.bv_val = uuidbuf;
 633         }
 634
 635         bi->bi_open = 0;
 636         bi->bi_close = 0;
 637         bi->bi_config = 0;
 638         bi->bi_destroy = 0;
 639
 640         bi->bi_db_init = bdb_db_init;
 641         bi->bi_db_config = bdb_db_config;
 642         bi->bi_db_open = bdb_db_open;
 643         bi->bi_db_close = bdb_db_close;
 644         bi->bi_db_destroy = bdb_db_destroy;
 645
 646         bi->bi_op_add = bdb_add;
 647         bi->bi_op_bind = bdb_bind;
 648         bi->bi_op_compare = bdb_compare;
 649         bi->bi_op_delete = bdb_delete;
 650         bi->bi_op_modify = bdb_modify;
 651         bi->bi_op_modrdn = bdb_modrdn;
 652         bi->bi_op_search = bdb_search;
 653
 654         bi->bi_op_unbind = 0;
 655
 656 #if 0   /* DELETE ME */
 657         bi->bi_op_abandon = bdb_abandon;
 658         bi->bi_op_cancel = bdb_cancel;
 659 #endif
 660
 661         bi->bi_extended = bdb_extended;
 662
 663         bi->bi_chk_referrals = bdb_referrals;
 664         bi->bi_operational = bdb_operational;
 665         bi->bi_has_subordinates = bdb_hasSubordinates;
 666         bi->bi_entry_release_rw = bdb_entry_release;
 667         bi->bi_entry_get_rw = bdb_entry_get;
 668
 669         /*
 670          * hooks for slap tools
 671          */
 672         bi->bi_tool_entry_open = bdb_tool_entry_open;
 673         bi->bi_tool_entry_close = bdb_tool_entry_close;
 674         bi->bi_tool_entry_first = bdb_tool_entry_next;
 675         bi->bi_tool_entry_next = bdb_tool_entry_next;
 676         bi->bi_tool_entry_get = bdb_tool_entry_get;
 677         bi->bi_tool_entry_put = bdb_tool_entry_put;
 678         bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
 679         bi->bi_tool_sync = 0;
 680         bi->bi_tool_dn2id_get = bdb_tool_dn2id_get;
 681         bi->bi_tool_id2entry_get = bdb_tool_id2entry_get;
 682         bi->bi_tool_entry_modify = bdb_tool_entry_modify;
 683
 684         bi->bi_connection_init = 0;
 685         bi->bi_connection_destroy = 0;
 686
 687         return 0;
 688 }
 689
 690 #if     (SLAPD_BDB == SLAPD_MOD_DYNAMIC && !defined(BDB_HIER)) || \
 691         (SLAPD_HDB == SLAPD_MOD_DYNAMIC && defined(BDB_HIER))
 692
 693 /* conditionally define the init_module() function */
 694 #ifdef BDB_HIER
 695 SLAP_BACKEND_INIT_MODULE( hdb )
 696 #else /* !BDB_HIER */
 697 SLAP_BACKEND_INIT_MODULE( bdb )
 698 #endif /* !BDB_HIER */
 699
 700 #endif /* SLAPD_[BH]DB == SLAPD_MOD_DYNAMIC */
 701