git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/config.c

   1 /* config.c - bdb backend configuration file routine */
   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
  22 #include "back-bdb.h"
  23
  24 #include "config.h"
  25
  26 #include "lutil.h"
  27 #include "ldap_rq.h"
  28
  29 #ifdef DB_DIRTY_READ
  30 #       define  SLAP_BDB_ALLOW_DIRTY_READ
  31 #endif
  32
  33 #define bdb_cf_oc                       BDB_SYMBOL(cf_oc)
  34 #define bdb_cf_gen                      BDB_SYMBOL(cf_gen)
  35 #define bdb_cf_cleanup          BDB_SYMBOL(cf_cleanup)
  36 #define bdb_checkpoint          BDB_SYMBOL(checkpoint)
  37 #define bdb_online_index        BDB_SYMBOL(online_index)
  38
  39 static ObjectClass *bdb_oc;
  40
  41 static ConfigDriver bdb_cf_gen;
  42
  43 enum {
  44         BDB_CHKPT = 1,
  45         BDB_CONFIG,
  46         BDB_DIRECTORY,
  47         BDB_NOSYNC,
  48         BDB_DIRTYR,
  49         BDB_INDEX,
  50         BDB_LOCKD,
  51         BDB_SSTACK
  52 };
  53
  54 static ConfigTable bdbcfg[] = {
  55         { "directory", "dir", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_DIRECTORY,
  56                 bdb_cf_gen, "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
  57                         "DESC 'Directory for database content' "
  58                         "EQUALITY caseIgnoreMatch "
  59                         "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
  60         { "cachesize", "size", 2, 2, 0, ARG_INT|ARG_OFFSET,
  61                 (void *)offsetof(struct bdb_info, bi_cache.c_maxsize),
  62                 "( OLcfgDbAt:1.1 NAME 'olcDbCacheSize' "
  63                         "DESC 'Entry cache size in entries' "
  64                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  65         { "checkpoint", "kbyte> <min", 3, 3, 0, ARG_MAGIC|BDB_CHKPT,
  66                 bdb_cf_gen, "( OLcfgDbAt:1.2 NAME 'olcDbCheckpoint' "
  67                         "DESC 'Database checkpoint interval in kbytes and minutes' "
  68                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
  69         { "dbconfig", "DB_CONFIG setting", 1, 0, 0, ARG_MAGIC|BDB_CONFIG,
  70                 bdb_cf_gen, "( OLcfgDbAt:1.3 NAME 'olcDbConfig' "
  71                         "DESC 'BerkeleyDB DB_CONFIG configuration directives' "
  72                         "SYNTAX OMsDirectoryString )",NULL, NULL },
  73         { "dbnosync", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_NOSYNC,
  74                 bdb_cf_gen, "( OLcfgDbAt:1.4 NAME 'olcDbNoSync' "
  75                         "DESC 'Disable synchronous database writes' "
  76                         "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  77         { "dirtyread", NULL, 1, 2, 0,
  78 #ifdef SLAP_BDB_ALLOW_DIRTY_READ
  79                 ARG_ON_OFF|ARG_MAGIC|BDB_DIRTYR, bdb_cf_gen,
  80 #else
  81                 ARG_IGNORED, NULL,
  82 #endif
  83                 "( OLcfgDbAt:1.5 NAME 'olcDbDirtyRead' "
  84                 "DESC 'Allow reads of uncommitted data' "
  85                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  86         { "idlcachesize", "size", 2, 2, 0, ARG_INT|ARG_OFFSET,
  87                 (void *)offsetof(struct bdb_info,bi_idl_cache_max_size),
  88                 "( OLcfgDbAt:1.6 NAME 'olcDbIDLcacheSize' "
  89                 "DESC 'IDL cache size in IDLs' "
  90                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  91         { "index", "attr> <[pres,eq,approx,sub]", 2, 3, 0, ARG_MAGIC|BDB_INDEX,
  92                 bdb_cf_gen, "( OLcfgDbAt:0.2 NAME 'olcDbIndex' "
  93                 "DESC 'Attribute index parameters' "
  94                 "EQUALITY caseIgnoreMatch "
  95                 "SYNTAX OMsDirectoryString )", NULL, NULL },
  96         { "linearindex", NULL, 1, 2, 0, ARG_ON_OFF|ARG_OFFSET,
  97                 (void *)offsetof(struct bdb_info, bi_linear_index),
  98                 "( OLcfgDbAt:1.7 NAME 'olcDbLinearIndex' "
  99                 "DESC 'Index attributes one at a time' "
 100                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
 101         { "lockdetect", "policy", 2, 2, 0, ARG_MAGIC|BDB_LOCKD,
 102                 bdb_cf_gen, "( OLcfgDbAt:1.8 NAME 'olcDbLockDetect' "
 103                 "DESC 'Deadlock detection algorithm' "
 104                 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 105         { "mode", "mode", 2, 2, 0, ARG_INT|ARG_OFFSET,
 106                 (void *)offsetof(struct bdb_info, bi_dbenv_mode),
 107                 "( OLcfgDbAt:0.3 NAME 'olcDbMode' "
 108                 "DESC 'Unix permissions of database files' "
 109                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 110         { "searchstack", "depth", 2, 2, 0, ARG_INT|ARG_MAGIC|BDB_SSTACK,
 111                 bdb_cf_gen, "( OLcfgDbAt:1.9 NAME 'olcDbSearchStack' "
 112                 "DESC 'Depth of search stack in IDLs' "
 113                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 114         { "shm_key", "key", 2, 2, 0, ARG_INT|ARG_OFFSET,
 115                 (void *)offsetof(struct bdb_info, bi_shm_key),
 116                 "( OLcfgDbAt:1.10 NAME 'olcDbShmKey' "
 117                 "DESC 'Key for shared memory region' "
 118                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 119         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 120                 NULL, NULL, NULL, NULL }
 121 };
 122
 123 static ConfigOCs bdbocs[] = {
 124         { "( OLcfgDbOc:1.1 "
 125                 "NAME 'olcBdbConfig' "
 126                 "DESC 'BDB backend configuration' "
 127                 "SUP olcDatabaseConfig "
 128                 "MUST olcDbDirectory "
 129                 "MAY ( olcDbCacheSize $ olcDbCheckpoint $ olcDbConfig $ "
 130                 "olcDbNoSync $ olcDbDirtyRead $ olcDbIDLcacheSize $ "
 131                 "olcDbIndex $ olcDbLinearIndex $ olcDbLockDetect $ "
 132                 "olcDbMode $ olcDbSearchStack $ olcDbShmKey ) )",
 133                         Cft_Database, &bdb_oc, bdbcfg },
 134         { NULL, 0, NULL }
 135 };
 136
 137 static int
 138 bdb_cf_oc(ConfigArgs *c)
 139 {
 140         if ( c->op == SLAP_CONFIG_EMIT ) {
 141                 value_add_one( &c->rvalue_vals, &bdb_oc->soc_cname );
 142                 return 0;
 143         }
 144         return 1;
 145 }
 146
 147 static slap_verbmasks bdb_lockd[] = {
 148         { BER_BVC("default"), DB_LOCK_DEFAULT },
 149         { BER_BVC("oldest"), DB_LOCK_OLDEST },
 150         { BER_BVC("random"), DB_LOCK_RANDOM },
 151         { BER_BVC("youngest"), DB_LOCK_YOUNGEST },
 152         { BER_BVC("fewest"), DB_LOCK_MINLOCKS },
 153         { BER_BVNULL, 0 }
 154 };
 155
 156 /* perform periodic checkpoints */
 157 static void *
 158 bdb_checkpoint( void *ctx, void *arg )
 159 {
 160         struct re_s *rtask = arg;
 161         struct bdb_info *bdb = rtask->arg;
 162
 163         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
 164                 bdb->bi_txn_cp_min, 0 );
 165         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 166         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 167         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 168         return NULL;
 169 }
 170
 171 /* reindex entries on the fly */
 172 static void *
 173 bdb_online_index( void *ctx, void *arg )
 174 {
 175         struct re_s *rtask = arg;
 176         BackendDB *be = rtask->arg;
 177         struct bdb_info *bdb = be->be_private;
 178
 179         Connection conn = {0};
 180         char opbuf[OPERATION_BUFFER_SIZE];
 181         Operation *op = (Operation *)opbuf;
 182
 183         DBC *curs;
 184         DBT key, data;
 185         DB_TXN *txn;
 186         DB_LOCK lock;
 187         u_int32_t locker;
 188         ID id, nid;
 189         EntryInfo *ei;
 190         int rc, getnext = 1;
 191
 192         connection_fake_init( &conn, op, ctx );
 193
 194         op->o_bd = be;
 195
 196         DBTzero( &key );
 197         DBTzero( &data );
 198
 199         id = 1;
 200         key.data = &nid;
 201         key.size = key.ulen = sizeof(ID);
 202         key.flags = DB_DBT_USERMEM;
 203
 204         data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
 205         data.dlen = data.ulen = 0;
 206
 207         while ( 1 ) {
 208                 if ( slapd_shutdown )
 209                         break;
 210
 211                 rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &txn, bdb->bi_db_opflags );
 212                 if ( rc )
 213                         break;
 214                 locker = TXN_ID( txn );
 215                 if ( getnext ) {
 216                         getnext = 0;
 217                         BDB_ID2DISK( id, &nid );
 218                         rc = bdb->bi_id2entry->bdi_db->cursor(
 219                                 bdb->bi_id2entry->bdi_db, txn, &curs, bdb->bi_db_opflags );
 220                         if ( rc ) {
 221                                 TXN_ABORT( txn );
 222                                 break;
 223                         }
 224                         rc = curs->c_get( curs, &key, &data, DB_SET_RANGE );
 225                         curs->c_close( curs );
 226                         if ( rc ) {
 227                                 TXN_ABORT( txn );
 228                                 if ( rc == DB_NOTFOUND )
 229                                         rc = 0;
 230                                 if ( rc == DB_LOCK_DEADLOCK ) {
 231                                         ldap_pvt_thread_yield();
 232                                         continue;
 233                                 }
 234                                 break;
 235                         }
 236                         BDB_DISK2ID( &nid, &id );
 237                 }
 238
 239                 ei = NULL;
 240                 rc = bdb_cache_find_id( op, txn, id, &ei, 0, locker, &lock );
 241                 if ( rc ) {
 242                         TXN_ABORT( txn );
 243                         if ( rc == DB_LOCK_DEADLOCK ) {
 244                                 ldap_pvt_thread_yield();
 245                                 continue;
 246                         }
 247                         if ( rc == DB_NOTFOUND ) {
 248                                 id++;
 249                                 getnext = 1;
 250                                 continue;
 251                         }
 252                         break;
 253                 }
 254                 if ( ei->bei_e ) {
 255                         rc = bdb_index_entry( op, txn, BDB_INDEX_UPDATE_OP, ei->bei_e );
 256                         if ( rc == DB_LOCK_DEADLOCK ) {
 257                                 TXN_ABORT( txn );
 258                                 ldap_pvt_thread_yield();
 259                                 continue;
 260                         }
 261                         if ( rc == 0 ) {
 262                                 rc = TXN_COMMIT( txn, 0 );
 263                                 txn = NULL;
 264                         }
 265                         if ( rc )
 266                                 break;
 267                 }
 268                 id++;
 269                 getnext = 1;
 270         }
 271 out:
 272         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 273         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 274         bdb->bi_index_task = NULL;
 275         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
 276         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 277
 278         return NULL;
 279 }
 280
 281 /* Cleanup loose ends after Modify completes */
 282 static int
 283 bdb_cf_cleanup( ConfigArgs *c )
 284 {
 285         struct bdb_info *bdb = c->be->be_private;
 286         int rc = 0;
 287
 288         if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
 289                 if ( bdb->bi_db_config ) {
 290                         int i;
 291                         FILE *f = fopen( bdb->bi_db_config_path, "w" );
 292                         if ( f ) {
 293                                 for (i=0; bdb->bi_db_config[i].bv_val; i++)
 294                                         fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
 295                                 fclose( f );
 296                         }
 297                 } else {
 298                         unlink( bdb->bi_db_config_path );
 299                 }
 300                 bdb->bi_flags ^= BDB_UPD_CONFIG;
 301         }
 302
 303         if ( bdb->bi_flags & BDB_DEL_INDEX ) {
 304                 bdb_attr_flush( bdb );
 305                 bdb->bi_flags ^= BDB_DEL_INDEX;
 306         }
 307
 308         if ( bdb->bi_flags & BDB_RE_OPEN ) {
 309                 bdb->bi_flags ^= BDB_RE_OPEN;
 310                 rc = c->be->bd_info->bi_db_close( c->be );
 311                 if ( rc == 0 )
 312                         rc = c->be->bd_info->bi_db_open( c->be );
 313                 /* If this fails, we need to restart */
 314                 if ( rc ) {
 315                         slapd_shutdown = 2;
 316                         Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
 317                                 ": failed to reopen database, rc=%d", rc, 0, 0 );
 318                 }
 319         }
 320         return rc;
 321 }
 322
 323 static int
 324 bdb_cf_gen(ConfigArgs *c)
 325 {
 326         struct bdb_info *bdb = c->be->be_private;
 327         int rc;
 328
 329         if ( c->op == SLAP_CONFIG_EMIT ) {
 330                 rc = 0;
 331                 switch( c->type ) {
 332                 case BDB_CHKPT:
 333                         if (bdb->bi_txn_cp ) {
 334                                 char buf[64];
 335                                 struct berval bv;
 336                                 bv.bv_len = sprintf( buf, "%d %d", bdb->bi_txn_cp_kbyte,
 337                                         bdb->bi_txn_cp_min );
 338                                 bv.bv_val = buf;
 339                                 value_add_one( &c->rvalue_vals, &bv );
 340                         } else{
 341                                 rc = 1;
 342                         }
 343                         break;
 344
 345                 case BDB_DIRECTORY:
 346                         if ( bdb->bi_dbenv_home ) {
 347                                 c->value_string = ch_strdup( bdb->bi_dbenv_home );
 348                         } else {
 349                                 rc = 1;
 350                         }
 351                         break;
 352
 353                 case BDB_CONFIG:
 354                         if (( slapMode&SLAP_SERVER_MODE ) && !( bdb->bi_flags&BDB_IS_OPEN )
 355                                 && !bdb->bi_db_config ) {
 356                                 char    buf[SLAP_TEXT_BUFLEN];
 357                                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 358                                 struct berval bv;
 359
 360                                 if ( f ) {
 361                                         bdb->bi_flags |= BDB_HAS_CONFIG;
 362                                         while ( fgets( buf, sizeof(buf), f )) {
 363                                                 ber_str2bv( buf, 0, 1, &bv );
 364                                                 if ( bv.bv_val[bv.bv_len-1] == '\n' ) {
 365                                                         bv.bv_len--;
 366                                                         bv.bv_val[bv.bv_len] = '\0';
 367                                                 }
 368                                                 /* shouldn't need this, but ... */
 369                                                 if ( bv.bv_val[bv.bv_len-1] == '\r' ) {
 370                                                         bv.bv_len--;
 371                                                         bv.bv_val[bv.bv_len] = '\0';
 372                                                 }
 373                                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 374                                         }
 375                                         fclose( f );
 376                                 }
 377                         }
 378                         if ( bdb->bi_db_config ) {
 379                                 int i;
 380                                 struct berval bv;
 381
 382                                 bv.bv_val = c->log;
 383                                 for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
 384                                         bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
 385                                                 bdb->bi_db_config[i].bv_val );
 386                                         value_add_one( &c->rvalue_vals, &bv );
 387                                 }
 388                         }
 389                         if ( !c->rvalue_vals ) rc = 1;
 390                         break;
 391
 392                 case BDB_NOSYNC:
 393                         if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
 394                                 c->value_int = 1;
 395                         break;
 396
 397                 case BDB_INDEX:
 398                         bdb_attr_index_unparse( bdb, &c->rvalue_vals );
 399                         if ( !c->rvalue_vals ) rc = 1;
 400                         break;
 401
 402                 case BDB_LOCKD:
 403                         rc = 1;
 404                         if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
 405                                 int i;
 406                                 for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
 407                                         if ( bdb->bi_lock_detect == bdb_lockd[i].mask ) {
 408                                                 value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
 409                                                 rc = 0;
 410                                                 break;
 411                                         }
 412                                 }
 413                         }
 414                         break;
 415
 416                 case BDB_SSTACK:
 417                         c->value_int = bdb->bi_search_stack_depth;
 418                         break;
 419                 }
 420                 return rc;
 421         } else if ( c->op == LDAP_MOD_DELETE ) {
 422                 rc = 0;
 423                 switch( c->type ) {
 424                 /* single-valued no-ops */
 425                 case BDB_LOCKD:
 426                 case BDB_SSTACK:
 427                         break;
 428
 429                 case BDB_CHKPT:
 430                         if ( bdb->bi_txn_cp_task ) {
 431                                 struct re_s *re = bdb->bi_txn_cp_task;
 432                                 bdb->bi_txn_cp_task = NULL;
 433                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ))
 434                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
 435                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
 436                         }
 437                         bdb->bi_txn_cp = 0;
 438                         break;
 439                 case BDB_CONFIG:
 440                         if ( c->valx < 0 ) {
 441                                 ber_bvarray_free( bdb->bi_db_config );
 442                                 bdb->bi_db_config = NULL;
 443                         } else {
 444                                 int i = c->valx;
 445                                 ch_free( bdb->bi_db_config[i].bv_val );
 446                                 for (; bdb->bi_db_config[i].bv_val; i++)
 447                                         bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
 448                         }
 449                         bdb->bi_flags |= BDB_UPD_CONFIG;
 450                         c->cleanup = bdb_cf_cleanup;
 451                         break;
 452                 case BDB_DIRECTORY:
 453                         bdb->bi_flags |= BDB_RE_OPEN;
 454                         bdb->bi_flags ^= BDB_HAS_CONFIG;
 455                         ch_free( bdb->bi_dbenv_home );
 456                         bdb->bi_dbenv_home = NULL;
 457                         ch_free( bdb->bi_db_config_path );
 458                         bdb->bi_db_config_path = NULL;
 459                         c->cleanup = bdb_cf_cleanup;
 460                         ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
 461                         ldap_pvt_thread_pool_purgekey( ((char *)bdb->bi_dbenv) + 1 );
 462                         break;
 463                 case BDB_NOSYNC:
 464                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
 465                         break;
 466                 case BDB_INDEX: {
 467                         AttributeDescription *ad = NULL;
 468                         struct berval bv, def = BER_BVC("default");
 469                         char *ptr;
 470                         const char *text;
 471                         for (ptr = c->line; !isspace( *ptr ); ptr++);
 472                         bv.bv_val = c->line;
 473                         bv.bv_len = ptr - bv.bv_val;
 474                         if ( bvmatch( &bv, &def )) {
 475                                 bdb->bi_defaultmask = 0;
 476                         } else {
 477                                 slap_bv2ad( &bv, &ad, &text );
 478                                 if ( ad ) {
 479                                         AttrInfo *ai = bdb_attr_mask( bdb, ad );
 480                                         ai->ai_indexmask |= BDB_INDEX_DELETING;
 481                                         bdb->bi_flags |= BDB_DEL_INDEX;
 482                                         c->cleanup = bdb_cf_cleanup;
 483                                 }
 484                         }
 485                         }
 486                         break;
 487                 }
 488                 return rc;
 489         }
 490
 491         switch( c->type ) {
 492         case BDB_CHKPT:
 493                 bdb->bi_txn_cp = 1;
 494                 bdb->bi_txn_cp_kbyte = strtol( c->argv[1], NULL, 0 );
 495                 bdb->bi_txn_cp_min = strtol( c->argv[2], NULL, 0 );
 496                 /* If we're in server mode and time-based checkpointing is enabled,
 497                  * submit a task to perform periodic checkpoints.
 498                  */
 499                 if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
 500                         struct re_s *re = bdb->bi_txn_cp_task;
 501                         if ( re )
 502                                 re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
 503                         else
 504                                 bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
 505                                         bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
 506                                         LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
 507                 }
 508                 break;
 509
 510         case BDB_CONFIG: {
 511                 char *ptr = c->line + STRLENOF("dbconfig");
 512                 struct berval bv;
 513                 while (!isspace(*ptr)) ptr++;
 514                 while (isspace(*ptr)) ptr++;
 515
 516                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 517                         bdb->bi_flags |= BDB_UPD_CONFIG;
 518                         c->cleanup = bdb_cf_cleanup;
 519                 } else {
 520                 /* If we're just starting up...
 521                  */
 522                         FILE *f;
 523                         /* If a DB_CONFIG file exists, or we don't know the path
 524                          * to the DB_CONFIG file, ignore these directives
 525                          */
 526                         if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
 527                                 break;
 528                         f = fopen( bdb->bi_db_config_path, "a" );
 529                         if ( f ) {
 530                                 /* FIXME: EBCDIC probably needs special handling */
 531                                 fprintf( f, "%s\n", ptr );
 532                                 fclose( f );
 533                         }
 534                 }
 535                 ber_str2bv( ptr, 0, 1, &bv );
 536                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 537                 }
 538                 break;
 539
 540         case BDB_DIRECTORY: {
 541                 FILE *f;
 542                 char *ptr;
 543
 544                 if ( bdb->bi_dbenv_home )
 545                         ch_free( bdb->bi_dbenv_home );
 546                 bdb->bi_dbenv_home = c->value_string;
 547
 548                 /* See if a DB_CONFIG file already exists here */
 549                 if ( bdb->bi_db_config_path )
 550                         ch_free( bdb->bi_db_config_path );
 551                 bdb->bi_db_config_path = ch_malloc( strlen( bdb->bi_dbenv_home ) +
 552                         STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
 553                 ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
 554                 *ptr++ = LDAP_DIRSEP[0];
 555                 strcpy( ptr, "DB_CONFIG" );
 556
 557                 f = fopen( bdb->bi_db_config_path, "r" );
 558                 if ( f ) {
 559                         bdb->bi_flags |= BDB_HAS_CONFIG;
 560                         fclose(f);
 561                 }
 562                 }
 563                 break;
 564
 565         case BDB_NOSYNC:
 566                 if ( c->value_int )
 567                         bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
 568                 else
 569                         bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
 570                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 571                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
 572                                 c->value_int );
 573                 }
 574                 break;
 575
 576         case BDB_INDEX:
 577                 rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
 578                         c->argc - 1, &c->argv[1] );
 579
 580                 if( rc != LDAP_SUCCESS ) return 1;
 581                 if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
 582                         /* Start the task as soon as we finish here. Set a long
 583                          * interval (10 hours) so that it only gets scheduled once.
 584                          */
 585                         bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
 586                                 bdb_online_index, c->be,
 587                                 LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
 588                 }
 589                 break;
 590
 591         case BDB_LOCKD:
 592                 rc = verb_to_mask( c->argv[1], bdb_lockd );
 593                 if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
 594                         fprintf( stderr, "%s: "
 595                                 "bad policy (%s) in \"lockDetect <policy>\" line\n",
 596                                 c->log, c->argv[1] );
 597                         return 1;
 598                 }
 599                 bdb->bi_lock_detect = rc;
 600                 break;
 601
 602         case BDB_SSTACK:
 603                 if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
 604                         fprintf( stderr,
 605                 "%s: depth %d too small, using %d\n",
 606                         c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
 607                         c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
 608                 }
 609                 bdb->bi_search_stack_depth = c->value_int;
 610                 break;
 611         }
 612         return 0;
 613 }
 614
 615 int bdb_back_init_cf( BackendInfo *bi )
 616 {
 617         int rc;
 618         bi->bi_cf_ocs = bdbocs;
 619
 620         rc = config_register_schema( bdbcfg, bdbocs );
 621         if ( rc ) return rc;
 622         return 0;
 623 }