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/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                         continue;
 277                 }
 278                 bdb->bi_attrs[ i ]->ai_indexmask = bdb->bi_attrs[ i ]->ai_newmask;
 279                 bdb->bi_attrs[ i ]->ai_newmask = 0;
 280         }
 281
 282         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 283         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 284         bdb->bi_index_task = NULL;
 285         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
 286         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 287
 288         return NULL;
 289 }
 290
 291 /* Cleanup loose ends after Modify completes */
 292 static int
 293 bdb_cf_cleanup( ConfigArgs *c )
 294 {
 295         struct bdb_info *bdb = c->be->be_private;
 296         int rc = 0;
 297
 298         if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
 299                 if ( bdb->bi_db_config ) {
 300                         int i;
 301                         FILE *f = fopen( bdb->bi_db_config_path, "w" );
 302                         if ( f ) {
 303                                 for (i=0; bdb->bi_db_config[i].bv_val; i++)
 304                                         fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
 305                                 fclose( f );
 306                         }
 307                 } else {
 308                         unlink( bdb->bi_db_config_path );
 309                 }
 310                 bdb->bi_flags ^= BDB_UPD_CONFIG;
 311         }
 312
 313         if ( bdb->bi_flags & BDB_DEL_INDEX ) {
 314                 bdb_attr_flush( bdb );
 315                 bdb->bi_flags ^= BDB_DEL_INDEX;
 316         }
 317
 318         if ( bdb->bi_flags & BDB_RE_OPEN ) {
 319                 bdb->bi_flags ^= BDB_RE_OPEN;
 320                 rc = c->be->bd_info->bi_db_close( c->be );
 321                 if ( rc == 0 )
 322                         rc = c->be->bd_info->bi_db_open( c->be );
 323                 /* If this fails, we need to restart */
 324                 if ( rc ) {
 325                         slapd_shutdown = 2;
 326                         Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
 327                                 ": failed to reopen database, rc=%d", rc, 0, 0 );
 328                 }
 329         }
 330         return rc;
 331 }
 332
 333 static int
 334 bdb_cf_gen(ConfigArgs *c)
 335 {
 336         struct bdb_info *bdb = c->be->be_private;
 337         int rc;
 338
 339         if ( c->op == SLAP_CONFIG_EMIT ) {
 340                 rc = 0;
 341                 switch( c->type ) {
 342                 case BDB_CHKPT:
 343                         if (bdb->bi_txn_cp ) {
 344                                 char buf[64];
 345                                 struct berval bv;
 346                                 bv.bv_len = sprintf( buf, "%d %d", bdb->bi_txn_cp_kbyte,
 347                                         bdb->bi_txn_cp_min );
 348                                 bv.bv_val = buf;
 349                                 value_add_one( &c->rvalue_vals, &bv );
 350                         } else{
 351                                 rc = 1;
 352                         }
 353                         break;
 354
 355                 case BDB_DIRECTORY:
 356                         if ( bdb->bi_dbenv_home ) {
 357                                 c->value_string = ch_strdup( bdb->bi_dbenv_home );
 358                         } else {
 359                                 rc = 1;
 360                         }
 361                         break;
 362
 363                 case BDB_CONFIG:
 364                         if (( slapMode&SLAP_SERVER_MODE ) && !( bdb->bi_flags&BDB_IS_OPEN )
 365                                 && !bdb->bi_db_config ) {
 366                                 char    buf[SLAP_TEXT_BUFLEN];
 367                                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 368                                 struct berval bv;
 369
 370                                 if ( f ) {
 371                                         bdb->bi_flags |= BDB_HAS_CONFIG;
 372                                         while ( fgets( buf, sizeof(buf), f )) {
 373                                                 ber_str2bv( buf, 0, 1, &bv );
 374                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\n' ) {
 375                                                         bv.bv_len--;
 376                                                         bv.bv_val[bv.bv_len] = '\0';
 377                                                 }
 378                                                 /* shouldn't need this, but ... */
 379                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\r' ) {
 380                                                         bv.bv_len--;
 381                                                         bv.bv_val[bv.bv_len] = '\0';
 382                                                 }
 383                                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 384                                         }
 385                                         fclose( f );
 386                                 }
 387                         }
 388                         if ( bdb->bi_db_config ) {
 389                                 int i;
 390                                 struct berval bv;
 391
 392                                 bv.bv_val = c->log;
 393                                 for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
 394                                         bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
 395                                                 bdb->bi_db_config[i].bv_val );
 396                                         value_add_one( &c->rvalue_vals, &bv );
 397                                 }
 398                         }
 399                         if ( !c->rvalue_vals ) rc = 1;
 400                         break;
 401
 402                 case BDB_NOSYNC:
 403                         if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
 404                                 c->value_int = 1;
 405                         break;
 406
 407                 case BDB_INDEX:
 408                         bdb_attr_index_unparse( bdb, &c->rvalue_vals );
 409                         if ( !c->rvalue_vals ) rc = 1;
 410                         break;
 411
 412                 case BDB_LOCKD:
 413                         rc = 1;
 414                         if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
 415                                 int i;
 416                                 for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
 417                                         if ( bdb->bi_lock_detect == bdb_lockd[i].mask ) {
 418                                                 value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
 419                                                 rc = 0;
 420                                                 break;
 421                                         }
 422                                 }
 423                         }
 424                         break;
 425
 426                 case BDB_SSTACK:
 427                         c->value_int = bdb->bi_search_stack_depth;
 428                         break;
 429                 }
 430                 return rc;
 431         } else if ( c->op == LDAP_MOD_DELETE ) {
 432                 rc = 0;
 433                 switch( c->type ) {
 434                 /* single-valued no-ops */
 435                 case BDB_LOCKD:
 436                 case BDB_SSTACK:
 437                         break;
 438
 439                 case BDB_CHKPT:
 440                         if ( bdb->bi_txn_cp_task ) {
 441                                 struct re_s *re = bdb->bi_txn_cp_task;
 442                                 bdb->bi_txn_cp_task = NULL;
 443                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ))
 444                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
 445                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
 446                         }
 447                         bdb->bi_txn_cp = 0;
 448                         break;
 449                 case BDB_CONFIG:
 450                         if ( c->valx < 0 ) {
 451                                 ber_bvarray_free( bdb->bi_db_config );
 452                                 bdb->bi_db_config = NULL;
 453                         } else {
 454                                 int i = c->valx;
 455                                 ch_free( bdb->bi_db_config[i].bv_val );
 456                                 for (; bdb->bi_db_config[i].bv_val; i++)
 457                                         bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
 458                         }
 459                         bdb->bi_flags |= BDB_UPD_CONFIG;
 460                         c->cleanup = bdb_cf_cleanup;
 461                         break;
 462                 case BDB_DIRECTORY:
 463                         bdb->bi_flags |= BDB_RE_OPEN;
 464                         bdb->bi_flags ^= BDB_HAS_CONFIG;
 465                         ch_free( bdb->bi_dbenv_home );
 466                         bdb->bi_dbenv_home = NULL;
 467                         ch_free( bdb->bi_db_config_path );
 468                         bdb->bi_db_config_path = NULL;
 469                         c->cleanup = bdb_cf_cleanup;
 470                         ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
 471                         ldap_pvt_thread_pool_purgekey( ((char *)bdb->bi_dbenv) + 1 );
 472                         break;
 473                 case BDB_NOSYNC:
 474                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
 475                         break;
 476                 case BDB_INDEX:
 477                         if ( c->valx == -1 ) {
 478                                 int i;
 479
 480                                 /* delete all (FIXME) */
 481                                 for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 482                                         bdb->bi_attrs[i]->ai_indexmask |= BDB_INDEX_DELETING;
 483                                 }
 484                                 bdb->bi_flags |= BDB_DEL_INDEX;
 485                                 c->cleanup = bdb_cf_cleanup;
 486
 487                         } else {
 488                                 struct berval bv, def = BER_BVC("default");
 489                                 char *ptr;
 490
 491                                 for (ptr = c->line; !isspace( *ptr ); ptr++);
 492
 493                                 bv.bv_val = c->line;
 494                                 bv.bv_len = ptr - bv.bv_val;
 495                                 if ( bvmatch( &bv, &def )) {
 496                                         bdb->bi_defaultmask = 0;
 497
 498                                 } else {
 499                                         int i;
 500                                         char **attrs;
 501                                         char sep;
 502
 503                                         sep = bv.bv_val[ bv.bv_len ];
 504                                         bv.bv_val[ bv.bv_len ] = '\0';
 505                                         attrs = ldap_str2charray( bv.bv_val, "," );
 506
 507                                         for ( i = 0; attrs[ i ]; i++ ) {
 508                                                 AttributeDescription *ad = NULL;
 509                                                 const char *text;
 510                                                 AttrInfo *ai;
 511
 512                                                 slap_str2ad( attrs[ i ], &ad, &text );
 513                                                 /* if we got here... */
 514                                                 assert( ad != NULL );
 515
 516                                                 ai = bdb_attr_mask( bdb, ad );
 517                                                 /* if we got here... */
 518                                                 assert( ai != NULL );
 519
 520                                                 ai->ai_indexmask |= BDB_INDEX_DELETING;
 521                                                 bdb->bi_flags |= BDB_DEL_INDEX;
 522                                                 c->cleanup = bdb_cf_cleanup;
 523                                         }
 524
 525                                         bv.bv_val[ bv.bv_len ] = sep;
 526                                         ldap_charray_free( attrs );
 527                                 }
 528                         }
 529                         break;
 530                 }
 531                 return rc;
 532         }
 533
 534         switch( c->type ) {
 535         case BDB_CHKPT: {
 536                 long    l;
 537                 bdb->bi_txn_cp = 1;
 538                 if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) {
 539                         fprintf( stderr, "%s: "
 540                                 "invalid kbyte \"%s\" in \"checkpoint\".\n",
 541                                 c->log, c->argv[1] );
 542                         return 1;
 543                 }
 544                 bdb->bi_txn_cp_kbyte = l;
 545                 if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) {
 546                         fprintf( stderr, "%s: "
 547                                 "invalid minutes \"%s\" in \"checkpoint\".\n",
 548                                 c->log, c->argv[2] );
 549                         return 1;
 550                 }
 551                 bdb->bi_txn_cp_min = l;
 552                 /* If we're in server mode and time-based checkpointing is enabled,
 553                  * submit a task to perform periodic checkpoints.
 554                  */
 555                 if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
 556                         struct re_s *re = bdb->bi_txn_cp_task;
 557                         if ( re ) {
 558                                 re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
 559                         } else {
 560                                 if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 561                                         fprintf( stderr, "%s: "
 562                                                 "\"checkpoint\" must occur after \"suffix\".\n",
 563                                                 c->log );
 564                                         return 1;
 565                                 }
 566                                 bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
 567                                         bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
 568                                         LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
 569                         }
 570                 }
 571                 } break;
 572
 573         case BDB_CONFIG: {
 574                 char *ptr = c->line;
 575                 struct berval bv;
 576
 577                 if ( c->op == SLAP_CONFIG_ADD ) {
 578                         ptr += STRLENOF("dbconfig");
 579                         while (!isspace(*ptr)) ptr++;
 580                         while (isspace(*ptr)) ptr++;
 581                 }
 582
 583                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 584                         bdb->bi_flags |= BDB_UPD_CONFIG;
 585                         c->cleanup = bdb_cf_cleanup;
 586                 } else {
 587                 /* If we're just starting up...
 588                  */
 589                         FILE *f;
 590                         /* If a DB_CONFIG file exists, or we don't know the path
 591                          * to the DB_CONFIG file, ignore these directives
 592                          */
 593                         if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
 594                                 break;
 595                         f = fopen( bdb->bi_db_config_path, "a" );
 596                         if ( f ) {
 597                                 /* FIXME: EBCDIC probably needs special handling */
 598                                 fprintf( f, "%s\n", ptr );
 599                                 fclose( f );
 600                         }
 601                 }
 602                 ber_str2bv( ptr, 0, 1, &bv );
 603                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 604                 }
 605                 break;
 606
 607         case BDB_DIRECTORY: {
 608                 FILE *f;
 609                 char *ptr;
 610
 611                 if ( bdb->bi_dbenv_home )
 612                         ch_free( bdb->bi_dbenv_home );
 613                 bdb->bi_dbenv_home = c->value_string;
 614
 615                 /* See if a DB_CONFIG file already exists here */
 616                 if ( bdb->bi_db_config_path )
 617                         ch_free( bdb->bi_db_config_path );
 618                 bdb->bi_db_config_path = ch_malloc( strlen( bdb->bi_dbenv_home ) +
 619                         STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
 620                 ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
 621                 *ptr++ = LDAP_DIRSEP[0];
 622                 strcpy( ptr, "DB_CONFIG" );
 623
 624                 f = fopen( bdb->bi_db_config_path, "r" );
 625                 if ( f ) {
 626                         bdb->bi_flags |= BDB_HAS_CONFIG;
 627                         fclose(f);
 628                 }
 629                 }
 630                 break;
 631
 632         case BDB_NOSYNC:
 633                 if ( c->value_int )
 634                         bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
 635                 else
 636                         bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
 637                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 638                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
 639                                 c->value_int );
 640                 }
 641                 break;
 642
 643         case BDB_INDEX:
 644                 rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
 645                         c->argc - 1, &c->argv[1] );
 646
 647                 if( rc != LDAP_SUCCESS ) return 1;
 648                 if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
 649                         /* Start the task as soon as we finish here. Set a long
 650                          * interval (10 hours) so that it only gets scheduled once.
 651                          */
 652                         if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 653                                 fprintf( stderr, "%s: "
 654                                         "\"index\" must occur after \"suffix\".\n",
 655                                         c->log );
 656                                 return 1;
 657                         }
 658                         bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
 659                                 bdb_online_index, c->be,
 660                                 LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
 661                 }
 662                 break;
 663
 664         case BDB_LOCKD:
 665                 rc = verb_to_mask( c->argv[1], bdb_lockd );
 666                 if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
 667                         fprintf( stderr, "%s: "
 668                                 "bad policy (%s) in \"lockDetect <policy>\" line\n",
 669                                 c->log, c->argv[1] );
 670                         return 1;
 671                 }
 672                 bdb->bi_lock_detect = rc;
 673                 break;
 674
 675         case BDB_SSTACK:
 676                 if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
 677                         fprintf( stderr,
 678                 "%s: depth %d too small, using %d\n",
 679                         c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
 680                         c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
 681                 }
 682                 bdb->bi_search_stack_depth = c->value_int;
 683                 break;
 684         }
 685         return 0;
 686 }
 687
 688 int bdb_back_init_cf( BackendInfo *bi )
 689 {
 690         int rc;
 691         bi->bi_cf_ocs = bdbocs;
 692
 693         rc = config_register_schema( bdbcfg, bdbocs );
 694         if ( rc ) return rc;
 695         return 0;
 696 }