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 2000-2007 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/ctype.h>
  21 #include <ac/string.h>
  22
  23 #include "back-bdb.h"
  24
  25 #include "config.h"
  26
  27 #include "lutil.h"
  28 #include "ldap_rq.h"
  29
  30 #ifdef DB_DIRTY_READ
  31 #       define  SLAP_BDB_ALLOW_DIRTY_READ
  32 #endif
  33
  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 ConfigDriver bdb_cf_gen;
  40
  41 enum {
  42         BDB_CHKPT = 1,
  43         BDB_CONFIG,
  44         BDB_DIRECTORY,
  45         BDB_NOSYNC,
  46         BDB_DIRTYR,
  47         BDB_INDEX,
  48         BDB_LOCKD,
  49         BDB_SSTACK
  50 };
  51
  52 static ConfigTable bdbcfg[] = {
  53         { "directory", "dir", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_DIRECTORY,
  54                 bdb_cf_gen, "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
  55                         "DESC 'Directory for database content' "
  56                         "EQUALITY caseIgnoreMatch "
  57                         "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
  58         { "cachefree", "size", 2, 2, 0, ARG_INT|ARG_OFFSET,
  59                 (void *)offsetof(struct bdb_info, bi_cache.c_minfree),
  60                 "( OLcfgDbAt:1.11 NAME 'olcDbCacheFree' "
  61                         "DESC 'Number of extra entries to free when max is reached' "
  62                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  63         { "cachesize", "size", 2, 2, 0, ARG_INT|ARG_OFFSET,
  64                 (void *)offsetof(struct bdb_info, bi_cache.c_maxsize),
  65                 "( OLcfgDbAt:1.1 NAME 'olcDbCacheSize' "
  66                         "DESC 'Entry cache size in entries' "
  67                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  68         { "checkpoint", "kbyte> <min", 3, 3, 0, ARG_MAGIC|BDB_CHKPT,
  69                 bdb_cf_gen, "( OLcfgDbAt:1.2 NAME 'olcDbCheckpoint' "
  70                         "DESC 'Database checkpoint interval in kbytes and minutes' "
  71                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
  72         { "dbconfig", "DB_CONFIG setting", 1, 0, 0, ARG_MAGIC|BDB_CONFIG,
  73                 bdb_cf_gen, "( OLcfgDbAt:1.3 NAME 'olcDbConfig' "
  74                         "DESC 'BerkeleyDB DB_CONFIG configuration directives' "
  75                         "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
  76         { "dbnosync", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_NOSYNC,
  77                 bdb_cf_gen, "( OLcfgDbAt:1.4 NAME 'olcDbNoSync' "
  78                         "DESC 'Disable synchronous database writes' "
  79                         "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  80         { "dirtyread", NULL, 1, 2, 0,
  81 #ifdef SLAP_BDB_ALLOW_DIRTY_READ
  82                 ARG_ON_OFF|ARG_MAGIC|BDB_DIRTYR, bdb_cf_gen,
  83 #else
  84                 ARG_IGNORED, NULL,
  85 #endif
  86                 "( OLcfgDbAt:1.5 NAME 'olcDbDirtyRead' "
  87                 "DESC 'Allow reads of uncommitted data' "
  88                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  89         { "idlcachesize", "size", 2, 2, 0, ARG_INT|ARG_OFFSET,
  90                 (void *)offsetof(struct bdb_info,bi_idl_cache_max_size),
  91                 "( OLcfgDbAt:1.6 NAME 'olcDbIDLcacheSize' "
  92                 "DESC 'IDL cache size in IDLs' "
  93                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  94         { "index", "attr> <[pres,eq,approx,sub]", 2, 3, 0, ARG_MAGIC|BDB_INDEX,
  95                 bdb_cf_gen, "( OLcfgDbAt:0.2 NAME 'olcDbIndex' "
  96                 "DESC 'Attribute index parameters' "
  97                 "EQUALITY caseIgnoreMatch "
  98                 "SYNTAX OMsDirectoryString )", NULL, NULL },
  99         { "linearindex", NULL, 1, 2, 0, ARG_ON_OFF|ARG_OFFSET,
 100                 (void *)offsetof(struct bdb_info, bi_linear_index),
 101                 "( OLcfgDbAt:1.7 NAME 'olcDbLinearIndex' "
 102                 "DESC 'Index attributes one at a time' "
 103                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
 104         { "lockdetect", "policy", 2, 2, 0, ARG_MAGIC|BDB_LOCKD,
 105                 bdb_cf_gen, "( OLcfgDbAt:1.8 NAME 'olcDbLockDetect' "
 106                 "DESC 'Deadlock detection algorithm' "
 107                 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 108         { "mode", "mode", 2, 2, 0, ARG_INT|ARG_OFFSET,
 109                 (void *)offsetof(struct bdb_info, bi_dbenv_mode),
 110                 "( OLcfgDbAt:0.3 NAME 'olcDbMode' "
 111                 "DESC 'Unix permissions of database files' "
 112                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 113         { "searchstack", "depth", 2, 2, 0, ARG_INT|ARG_MAGIC|BDB_SSTACK,
 114                 bdb_cf_gen, "( OLcfgDbAt:1.9 NAME 'olcDbSearchStack' "
 115                 "DESC 'Depth of search stack in IDLs' "
 116                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 117         { "shm_key", "key", 2, 2, 0, ARG_INT|ARG_OFFSET,
 118                 (void *)offsetof(struct bdb_info, bi_shm_key),
 119                 "( OLcfgDbAt:1.10 NAME 'olcDbShmKey' "
 120                 "DESC 'Key for shared memory region' "
 121                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 122         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 123                 NULL, NULL, NULL, NULL }
 124 };
 125
 126 static ConfigOCs bdbocs[] = {
 127         {
 128 #ifdef BDB_HIER
 129                 "( OLcfgDbOc:1.2 "
 130                 "NAME 'olcHdbConfig' "
 131                 "DESC 'HDB backend configuration' "
 132 #else
 133                 "( OLcfgDbOc:1.1 "
 134                 "NAME 'olcBdbConfig' "
 135                 "DESC 'BDB backend configuration' "
 136 #endif
 137                 "SUP olcDatabaseConfig "
 138                 "MUST olcDbDirectory "
 139                 "MAY ( olcDbCacheSize $ olcDbCheckpoint $ olcDbConfig $ "
 140                 "olcDbNoSync $ olcDbDirtyRead $ olcDbIDLcacheSize $ "
 141                 "olcDbIndex $ olcDbLinearIndex $ olcDbLockDetect $ "
 142                 "olcDbMode $ olcDbSearchStack $ olcDbShmKey $ "
 143                 " olcDbCacheFree ) )",
 144                         Cft_Database, bdbcfg },
 145         { NULL, 0, NULL }
 146 };
 147
 148 static slap_verbmasks bdb_lockd[] = {
 149         { BER_BVC("default"), DB_LOCK_DEFAULT },
 150         { BER_BVC("oldest"), DB_LOCK_OLDEST },
 151         { BER_BVC("random"), DB_LOCK_RANDOM },
 152         { BER_BVC("youngest"), DB_LOCK_YOUNGEST },
 153         { BER_BVC("fewest"), DB_LOCK_MINLOCKS },
 154         { BER_BVNULL, 0 }
 155 };
 156
 157 /* perform periodic checkpoints */
 158 static void *
 159 bdb_checkpoint( void *ctx, void *arg )
 160 {
 161         struct re_s *rtask = arg;
 162         struct bdb_info *bdb = rtask->arg;
 163
 164         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
 165                 bdb->bi_txn_cp_min, 0 );
 166         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 167         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 168         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 169         return NULL;
 170 }
 171
 172 /* reindex entries on the fly */
 173 static void *
 174 bdb_online_index( void *ctx, void *arg )
 175 {
 176         struct re_s *rtask = arg;
 177         BackendDB *be = rtask->arg;
 178         struct bdb_info *bdb = be->be_private;
 179
 180         Connection conn = {0};
 181         OperationBuffer opbuf;
 182         Operation *op = (Operation *) &opbuf;
 183
 184         DBC *curs;
 185         DBT key, data;
 186         DB_TXN *txn;
 187         DB_LOCK lock;
 188         u_int32_t locker;
 189         ID id, nid;
 190         EntryInfo *ei;
 191         int rc, getnext = 1;
 192         int i;
 193
 194         connection_fake_init( &conn, op, ctx );
 195
 196         op->o_bd = be;
 197
 198         DBTzero( &key );
 199         DBTzero( &data );
 200
 201         id = 1;
 202         key.data = &nid;
 203         key.size = key.ulen = sizeof(ID);
 204         key.flags = DB_DBT_USERMEM;
 205
 206         data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
 207         data.dlen = data.ulen = 0;
 208
 209         while ( 1 ) {
 210                 if ( slapd_shutdown )
 211                         break;
 212
 213                 rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &txn, bdb->bi_db_opflags );
 214                 if ( rc )
 215                         break;
 216                 locker = TXN_ID( txn );
 217                 if ( getnext ) {
 218                         getnext = 0;
 219                         BDB_ID2DISK( id, &nid );
 220                         rc = bdb->bi_id2entry->bdi_db->cursor(
 221                                 bdb->bi_id2entry->bdi_db, txn, &curs, bdb->bi_db_opflags );
 222                         if ( rc ) {
 223                                 TXN_ABORT( txn );
 224                                 break;
 225                         }
 226                         rc = curs->c_get( curs, &key, &data, DB_SET_RANGE );
 227                         curs->c_close( curs );
 228                         if ( rc ) {
 229                                 TXN_ABORT( txn );
 230                                 if ( rc == DB_NOTFOUND )
 231                                         rc = 0;
 232                                 if ( rc == DB_LOCK_DEADLOCK ) {
 233                                         ldap_pvt_thread_yield();
 234                                         continue;
 235                                 }
 236                                 break;
 237                         }
 238                         BDB_DISK2ID( &nid, &id );
 239                 }
 240
 241                 ei = NULL;
 242                 rc = bdb_cache_find_id( op, txn, id, &ei, 0, locker, &lock );
 243                 if ( rc ) {
 244                         TXN_ABORT( txn );
 245                         if ( rc == DB_LOCK_DEADLOCK ) {
 246                                 ldap_pvt_thread_yield();
 247                                 continue;
 248                         }
 249                         if ( rc == DB_NOTFOUND ) {
 250                                 id++;
 251                                 getnext = 1;
 252                                 continue;
 253                         }
 254                         break;
 255                 }
 256                 if ( ei->bei_e ) {
 257                         rc = bdb_index_entry( op, txn, BDB_INDEX_UPDATE_OP, ei->bei_e );
 258                         if ( rc == DB_LOCK_DEADLOCK ) {
 259                                 TXN_ABORT( txn );
 260                                 ldap_pvt_thread_yield();
 261                                 continue;
 262                         }
 263                         if ( rc == 0 ) {
 264                                 rc = TXN_COMMIT( txn, 0 );
 265                                 txn = NULL;
 266                         }
 267                         if ( rc )
 268                                 break;
 269                 }
 270                 id++;
 271                 getnext = 1;
 272         }
 273
 274         for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 275                 if ( bdb->bi_attrs[ i ]->ai_indexmask & BDB_INDEX_DELETING
 276                         || bdb->bi_attrs[ i ]->ai_newmask == 0 )
 277                 {
 278                         continue;
 279                 }
 280                 bdb->bi_attrs[ i ]->ai_indexmask = bdb->bi_attrs[ i ]->ai_newmask;
 281                 bdb->bi_attrs[ i ]->ai_newmask = 0;
 282         }
 283
 284         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 285         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 286         bdb->bi_index_task = NULL;
 287         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
 288         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 289
 290         return NULL;
 291 }
 292
 293 /* Cleanup loose ends after Modify completes */
 294 static int
 295 bdb_cf_cleanup( ConfigArgs *c )
 296 {
 297         struct bdb_info *bdb = c->be->be_private;
 298         int rc = 0;
 299
 300         if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
 301                 if ( bdb->bi_db_config ) {
 302                         int i;
 303                         FILE *f = fopen( bdb->bi_db_config_path, "w" );
 304                         if ( f ) {
 305                                 for (i=0; bdb->bi_db_config[i].bv_val; i++)
 306                                         fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
 307                                 fclose( f );
 308                         }
 309                 } else {
 310                         unlink( bdb->bi_db_config_path );
 311                 }
 312                 bdb->bi_flags ^= BDB_UPD_CONFIG;
 313         }
 314
 315         if ( bdb->bi_flags & BDB_DEL_INDEX ) {
 316                 bdb_attr_flush( bdb );
 317                 bdb->bi_flags ^= BDB_DEL_INDEX;
 318         }
 319
 320         if ( bdb->bi_flags & BDB_RE_OPEN ) {
 321                 bdb->bi_flags ^= BDB_RE_OPEN;
 322                 rc = c->be->bd_info->bi_db_close( c->be );
 323                 if ( rc == 0 )
 324                         rc = c->be->bd_info->bi_db_open( c->be );
 325                 /* If this fails, we need to restart */
 326                 if ( rc ) {
 327                         slapd_shutdown = 2;
 328                         Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
 329                                 ": failed to reopen database, rc=%d", rc, 0, 0 );
 330                 }
 331         }
 332         return rc;
 333 }
 334
 335 static int
 336 bdb_cf_gen(ConfigArgs *c)
 337 {
 338         struct bdb_info *bdb = c->be->be_private;
 339         int rc;
 340
 341         if ( c->op == SLAP_CONFIG_EMIT ) {
 342                 rc = 0;
 343                 switch( c->type ) {
 344                 case BDB_CHKPT:
 345                         if (bdb->bi_txn_cp ) {
 346                                 char buf[64];
 347                                 struct berval bv;
 348                                 bv.bv_len = sprintf( buf, "%d %d", bdb->bi_txn_cp_kbyte,
 349                                         bdb->bi_txn_cp_min );
 350                                 bv.bv_val = buf;
 351                                 value_add_one( &c->rvalue_vals, &bv );
 352                         } else{
 353                                 rc = 1;
 354                         }
 355                         break;
 356
 357                 case BDB_DIRECTORY:
 358                         if ( bdb->bi_dbenv_home ) {
 359                                 c->value_string = ch_strdup( bdb->bi_dbenv_home );
 360                         } else {
 361                                 rc = 1;
 362                         }
 363                         break;
 364
 365                 case BDB_CONFIG:
 366                         if (( slapMode&SLAP_SERVER_MODE ) && !( bdb->bi_flags&BDB_IS_OPEN )
 367                                 && !bdb->bi_db_config ) {
 368                                 char    buf[SLAP_TEXT_BUFLEN];
 369                                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 370                                 struct berval bv;
 371
 372                                 if ( f ) {
 373                                         bdb->bi_flags |= BDB_HAS_CONFIG;
 374                                         while ( fgets( buf, sizeof(buf), f )) {
 375                                                 ber_str2bv( buf, 0, 1, &bv );
 376                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\n' ) {
 377                                                         bv.bv_len--;
 378                                                         bv.bv_val[bv.bv_len] = '\0';
 379                                                 }
 380                                                 /* shouldn't need this, but ... */
 381                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\r' ) {
 382                                                         bv.bv_len--;
 383                                                         bv.bv_val[bv.bv_len] = '\0';
 384                                                 }
 385                                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 386                                         }
 387                                         fclose( f );
 388                                 }
 389                         }
 390                         if ( bdb->bi_db_config ) {
 391                                 int i;
 392                                 struct berval bv;
 393
 394                                 bv.bv_val = c->log;
 395                                 for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
 396                                         bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
 397                                                 bdb->bi_db_config[i].bv_val );
 398                                         value_add_one( &c->rvalue_vals, &bv );
 399                                 }
 400                         }
 401                         if ( !c->rvalue_vals ) rc = 1;
 402                         break;
 403
 404                 case BDB_NOSYNC:
 405                         if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
 406                                 c->value_int = 1;
 407                         break;
 408
 409                 case BDB_INDEX:
 410                         bdb_attr_index_unparse( bdb, &c->rvalue_vals );
 411                         if ( !c->rvalue_vals ) rc = 1;
 412                         break;
 413
 414                 case BDB_LOCKD:
 415                         rc = 1;
 416                         if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
 417                                 int i;
 418                                 for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
 419                                         if ( bdb->bi_lock_detect == bdb_lockd[i].mask ) {
 420                                                 value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
 421                                                 rc = 0;
 422                                                 break;
 423                                         }
 424                                 }
 425                         }
 426                         break;
 427
 428                 case BDB_SSTACK:
 429                         c->value_int = bdb->bi_search_stack_depth;
 430                         break;
 431                 }
 432                 return rc;
 433         } else if ( c->op == LDAP_MOD_DELETE ) {
 434                 rc = 0;
 435                 switch( c->type ) {
 436                 /* single-valued no-ops */
 437                 case BDB_LOCKD:
 438                 case BDB_SSTACK:
 439                         break;
 440
 441                 case BDB_CHKPT:
 442                         if ( bdb->bi_txn_cp_task ) {
 443                                 struct re_s *re = bdb->bi_txn_cp_task;
 444                                 bdb->bi_txn_cp_task = NULL;
 445                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ))
 446                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
 447                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
 448                         }
 449                         bdb->bi_txn_cp = 0;
 450                         break;
 451                 case BDB_CONFIG:
 452                         if ( c->valx < 0 ) {
 453                                 ber_bvarray_free( bdb->bi_db_config );
 454                                 bdb->bi_db_config = NULL;
 455                         } else {
 456                                 int i = c->valx;
 457                                 ch_free( bdb->bi_db_config[i].bv_val );
 458                                 for (; bdb->bi_db_config[i].bv_val; i++)
 459                                         bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
 460                         }
 461                         bdb->bi_flags |= BDB_UPD_CONFIG;
 462                         c->cleanup = bdb_cf_cleanup;
 463                         break;
 464                 case BDB_DIRECTORY:
 465                         bdb->bi_flags |= BDB_RE_OPEN;
 466                         bdb->bi_flags ^= BDB_HAS_CONFIG;
 467                         ch_free( bdb->bi_dbenv_home );
 468                         bdb->bi_dbenv_home = NULL;
 469                         ch_free( bdb->bi_db_config_path );
 470                         bdb->bi_db_config_path = NULL;
 471                         c->cleanup = bdb_cf_cleanup;
 472                         ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
 473                         ldap_pvt_thread_pool_purgekey( ((char *)bdb->bi_dbenv) + 1 );
 474                         break;
 475                 case BDB_NOSYNC:
 476                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
 477                         break;
 478                 case BDB_INDEX:
 479                         if ( c->valx == -1 ) {
 480                                 int i;
 481
 482                                 /* delete all (FIXME) */
 483                                 for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 484                                         bdb->bi_attrs[i]->ai_indexmask |= BDB_INDEX_DELETING;
 485                                 }
 486                                 bdb->bi_flags |= BDB_DEL_INDEX;
 487                                 c->cleanup = bdb_cf_cleanup;
 488
 489                         } else {
 490                                 struct berval bv, def = BER_BVC("default");
 491                                 char *ptr;
 492
 493                                 for (ptr = c->line; !isspace( *ptr ); ptr++);
 494
 495                                 bv.bv_val = c->line;
 496                                 bv.bv_len = ptr - bv.bv_val;
 497                                 if ( bvmatch( &bv, &def )) {
 498                                         bdb->bi_defaultmask = 0;
 499
 500                                 } else {
 501                                         int i;
 502                                         char **attrs;
 503                                         char sep;
 504
 505                                         sep = bv.bv_val[ bv.bv_len ];
 506                                         bv.bv_val[ bv.bv_len ] = '\0';
 507                                         attrs = ldap_str2charray( bv.bv_val, "," );
 508
 509                                         for ( i = 0; attrs[ i ]; i++ ) {
 510                                                 AttributeDescription *ad = NULL;
 511                                                 const char *text;
 512                                                 AttrInfo *ai;
 513
 514                                                 slap_str2ad( attrs[ i ], &ad, &text );
 515                                                 /* if we got here... */
 516                                                 assert( ad != NULL );
 517
 518                                                 ai = bdb_attr_mask( bdb, ad );
 519                                                 /* if we got here... */
 520                                                 assert( ai != NULL );
 521
 522                                                 ai->ai_indexmask |= BDB_INDEX_DELETING;
 523                                                 bdb->bi_flags |= BDB_DEL_INDEX;
 524                                                 c->cleanup = bdb_cf_cleanup;
 525                                         }
 526
 527                                         bv.bv_val[ bv.bv_len ] = sep;
 528                                         ldap_charray_free( attrs );
 529                                 }
 530                         }
 531                         break;
 532                 }
 533                 return rc;
 534         }
 535
 536         switch( c->type ) {
 537         case BDB_CHKPT: {
 538                 long    l;
 539                 bdb->bi_txn_cp = 1;
 540                 if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) {
 541                         fprintf( stderr, "%s: "
 542                                 "invalid kbyte \"%s\" in \"checkpoint\".\n",
 543                                 c->log, c->argv[1] );
 544                         return 1;
 545                 }
 546                 bdb->bi_txn_cp_kbyte = l;
 547                 if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) {
 548                         fprintf( stderr, "%s: "
 549                                 "invalid minutes \"%s\" in \"checkpoint\".\n",
 550                                 c->log, c->argv[2] );
 551                         return 1;
 552                 }
 553                 bdb->bi_txn_cp_min = l;
 554                 /* If we're in server mode and time-based checkpointing is enabled,
 555                  * submit a task to perform periodic checkpoints.
 556                  */
 557                 if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
 558                         struct re_s *re = bdb->bi_txn_cp_task;
 559                         if ( re ) {
 560                                 re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
 561                         } else {
 562                                 if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 563                                         fprintf( stderr, "%s: "
 564                                                 "\"checkpoint\" must occur after \"suffix\".\n",
 565                                                 c->log );
 566                                         return 1;
 567                                 }
 568                                 bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
 569                                         bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
 570                                         LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
 571                         }
 572                 }
 573                 } break;
 574
 575         case BDB_CONFIG: {
 576                 char *ptr = c->line;
 577                 struct berval bv;
 578
 579                 if ( c->op == SLAP_CONFIG_ADD ) {
 580                         ptr += STRLENOF("dbconfig");
 581                         while (!isspace(*ptr)) ptr++;
 582                         while (isspace(*ptr)) ptr++;
 583                 }
 584
 585                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 586                         bdb->bi_flags |= BDB_UPD_CONFIG;
 587                         c->cleanup = bdb_cf_cleanup;
 588                 } else {
 589                 /* If we're just starting up...
 590                  */
 591                         FILE *f;
 592                         /* If a DB_CONFIG file exists, or we don't know the path
 593                          * to the DB_CONFIG file, ignore these directives
 594                          */
 595                         if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
 596                                 break;
 597                         f = fopen( bdb->bi_db_config_path, "a" );
 598                         if ( f ) {
 599                                 /* FIXME: EBCDIC probably needs special handling */
 600                                 fprintf( f, "%s\n", ptr );
 601                                 fclose( f );
 602                         }
 603                 }
 604                 ber_str2bv( ptr, 0, 1, &bv );
 605                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 606                 }
 607                 break;
 608
 609         case BDB_DIRECTORY: {
 610                 FILE *f;
 611                 char *ptr;
 612
 613                 if ( bdb->bi_dbenv_home )
 614                         ch_free( bdb->bi_dbenv_home );
 615                 bdb->bi_dbenv_home = c->value_string;
 616
 617                 /* See if a DB_CONFIG file already exists here */
 618                 if ( bdb->bi_db_config_path )
 619                         ch_free( bdb->bi_db_config_path );
 620                 bdb->bi_db_config_path = ch_malloc( strlen( bdb->bi_dbenv_home ) +
 621                         STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
 622                 ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
 623                 *ptr++ = LDAP_DIRSEP[0];
 624                 strcpy( ptr, "DB_CONFIG" );
 625
 626                 f = fopen( bdb->bi_db_config_path, "r" );
 627                 if ( f ) {
 628                         bdb->bi_flags |= BDB_HAS_CONFIG;
 629                         fclose(f);
 630                 }
 631                 }
 632                 break;
 633
 634         case BDB_NOSYNC:
 635                 if ( c->value_int )
 636                         bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
 637                 else
 638                         bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
 639                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 640                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
 641                                 c->value_int );
 642                 }
 643                 break;
 644
 645         case BDB_INDEX:
 646                 rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
 647                         c->argc - 1, &c->argv[1] );
 648
 649                 if( rc != LDAP_SUCCESS ) return 1;
 650                 if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
 651                         /* Start the task as soon as we finish here. Set a long
 652                          * interval (10 hours) so that it only gets scheduled once.
 653                          */
 654                         if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 655                                 fprintf( stderr, "%s: "
 656                                         "\"index\" must occur after \"suffix\".\n",
 657                                         c->log );
 658                                 return 1;
 659                         }
 660                         bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
 661                                 bdb_online_index, c->be,
 662                                 LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
 663                 }
 664                 break;
 665
 666         case BDB_LOCKD:
 667                 rc = verb_to_mask( c->argv[1], bdb_lockd );
 668                 if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
 669                         fprintf( stderr, "%s: "
 670                                 "bad policy (%s) in \"lockDetect <policy>\" line\n",
 671                                 c->log, c->argv[1] );
 672                         return 1;
 673                 }
 674                 bdb->bi_lock_detect = rc;
 675                 break;
 676
 677         case BDB_SSTACK:
 678                 if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
 679                         fprintf( stderr,
 680                 "%s: depth %d too small, using %d\n",
 681                         c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
 682                         c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
 683                 }
 684                 bdb->bi_search_stack_depth = c->value_int;
 685                 break;
 686         }
 687         return 0;
 688 }
 689
 690 int bdb_back_init_cf( BackendInfo *bi )
 691 {
 692         int rc;
 693         bi->bi_cf_ocs = bdbocs;
 694
 695         rc = config_register_schema( bdbcfg, bdbocs );
 696         if ( rc ) return rc;
 697         return 0;
 698 }