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 #include <ac/errno.h>
  23
  24 #include "back-bdb.h"
  25
  26 #include "config.h"
  27
  28 #include "lutil.h"
  29 #include "ldap_rq.h"
  30
  31 #ifdef DB_DIRTY_READ
  32 #       define  SLAP_BDB_ALLOW_DIRTY_READ
  33 #endif
  34
  35 #define bdb_cf_gen              BDB_SYMBOL(cf_gen)
  36 #define bdb_cf_cleanup          BDB_SYMBOL(cf_cleanup)
  37 #define bdb_checkpoint          BDB_SYMBOL(checkpoint)
  38 #define bdb_online_index        BDB_SYMBOL(online_index)
  39
  40 static ConfigDriver bdb_cf_gen;
  41
  42 enum {
  43         BDB_CHKPT = 1,
  44         BDB_CONFIG,
  45         BDB_DIRECTORY,
  46         BDB_NOSYNC,
  47         BDB_DIRTYR,
  48         BDB_INDEX,
  49         BDB_LOCKD,
  50         BDB_SSTACK
  51 };
  52
  53 static ConfigTable bdbcfg[] = {
  54         { "directory", "dir", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_DIRECTORY,
  55                 bdb_cf_gen, "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
  56                         "DESC 'Directory for database content' "
  57                         "EQUALITY caseIgnoreMatch "
  58                         "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
  59         { "cachefree", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
  60                 (void *)offsetof(struct bdb_info, bi_cache.c_minfree),
  61                 "( OLcfgDbAt:1.11 NAME 'olcDbCacheFree' "
  62                         "DESC 'Number of extra entries to free when max is reached' "
  63                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  64         { "cachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
  65                 (void *)offsetof(struct bdb_info, bi_cache.c_maxsize),
  66                 "( OLcfgDbAt:1.1 NAME 'olcDbCacheSize' "
  67                         "DESC 'Entry cache size in entries' "
  68                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  69         { "checkpoint", "kbyte> <min", 3, 3, 0, ARG_MAGIC|BDB_CHKPT,
  70                 bdb_cf_gen, "( OLcfgDbAt:1.2 NAME 'olcDbCheckpoint' "
  71                         "DESC 'Database checkpoint interval in kbytes and minutes' "
  72                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
  73         { "dbconfig", "DB_CONFIG setting", 1, 0, 0, ARG_MAGIC|BDB_CONFIG,
  74                 bdb_cf_gen, "( OLcfgDbAt:1.3 NAME 'olcDbConfig' "
  75                         "DESC 'BerkeleyDB DB_CONFIG configuration directives' "
  76                         "SYNTAX OMsIA5String X-ORDERED 'VALUES' )", NULL, NULL },
  77         { "dbnosync", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_NOSYNC,
  78                 bdb_cf_gen, "( OLcfgDbAt:1.4 NAME 'olcDbNoSync' "
  79                         "DESC 'Disable synchronous database writes' "
  80                         "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  81         { "dirtyread", NULL, 1, 2, 0,
  82 #ifdef SLAP_BDB_ALLOW_DIRTY_READ
  83                 ARG_ON_OFF|ARG_MAGIC|BDB_DIRTYR, bdb_cf_gen,
  84 #else
  85                 ARG_IGNORED, NULL,
  86 #endif
  87                 "( OLcfgDbAt:1.5 NAME 'olcDbDirtyRead' "
  88                 "DESC 'Allow reads of uncommitted data' "
  89                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  90         { "dncachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
  91                 (void *)offsetof(struct bdb_info, bi_cache.c_eimax),
  92                 "( OLcfgDbAt:1.12 NAME 'olcDbDNcacheSize' "
  93                         "DESC 'DN cache size' "
  94                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  95         { "idlcachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
  96                 (void *)offsetof(struct bdb_info, bi_idl_cache_max_size),
  97                 "( OLcfgDbAt:1.6 NAME 'olcDbIDLcacheSize' "
  98                 "DESC 'IDL cache size in IDLs' "
  99                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 100         { "index", "attr> <[pres,eq,approx,sub]", 2, 3, 0, ARG_MAGIC|BDB_INDEX,
 101                 bdb_cf_gen, "( OLcfgDbAt:0.2 NAME 'olcDbIndex' "
 102                 "DESC 'Attribute index parameters' "
 103                 "EQUALITY caseIgnoreMatch "
 104                 "SYNTAX OMsDirectoryString )", NULL, NULL },
 105         { "linearindex", NULL, 1, 2, 0, ARG_ON_OFF|ARG_OFFSET,
 106                 (void *)offsetof(struct bdb_info, bi_linear_index),
 107                 "( OLcfgDbAt:1.7 NAME 'olcDbLinearIndex' "
 108                 "DESC 'Index attributes one at a time' "
 109                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
 110         { "lockdetect", "policy", 2, 2, 0, ARG_MAGIC|BDB_LOCKD,
 111                 bdb_cf_gen, "( OLcfgDbAt:1.8 NAME 'olcDbLockDetect' "
 112                 "DESC 'Deadlock detection algorithm' "
 113                 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 114         { "mode", "mode", 2, 2, 0, ARG_INT|ARG_OFFSET,
 115                 (void *)offsetof(struct bdb_info, bi_dbenv_mode),
 116                 "( OLcfgDbAt:0.3 NAME 'olcDbMode' "
 117                 "DESC 'Unix permissions of database files' "
 118                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 119         { "searchstack", "depth", 2, 2, 0, ARG_INT|ARG_MAGIC|BDB_SSTACK,
 120                 bdb_cf_gen, "( OLcfgDbAt:1.9 NAME 'olcDbSearchStack' "
 121                 "DESC 'Depth of search stack in IDLs' "
 122                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 123         { "shm_key", "key", 2, 2, 0, ARG_LONG|ARG_OFFSET,
 124                 (void *)offsetof(struct bdb_info, bi_shm_key),
 125                 "( OLcfgDbAt:1.10 NAME 'olcDbShmKey' "
 126                 "DESC 'Key for shared memory region' "
 127                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 128         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 129                 NULL, NULL, NULL, NULL }
 130 };
 131
 132 static ConfigOCs bdbocs[] = {
 133         {
 134 #ifdef BDB_HIER
 135                 "( OLcfgDbOc:1.2 "
 136                 "NAME 'olcHdbConfig' "
 137                 "DESC 'HDB backend configuration' "
 138 #else
 139                 "( OLcfgDbOc:1.1 "
 140                 "NAME 'olcBdbConfig' "
 141                 "DESC 'BDB backend configuration' "
 142 #endif
 143                 "SUP olcDatabaseConfig "
 144                 "MUST olcDbDirectory "
 145                 "MAY ( olcDbCacheSize $ olcDbCheckpoint $ olcDbConfig $ "
 146                 "olcDbNoSync $ olcDbDirtyRead $ olcDbIDLcacheSize $ "
 147                 "olcDbIndex $ olcDbLinearIndex $ olcDbLockDetect $ "
 148                 "olcDbMode $ olcDbSearchStack $ olcDbShmKey $ "
 149                 "olcDbCacheFree $ olcDbDNcacheSize ) )",
 150                         Cft_Database, bdbcfg },
 151         { NULL, 0, NULL }
 152 };
 153
 154 static slap_verbmasks bdb_lockd[] = {
 155         { BER_BVC("default"), DB_LOCK_DEFAULT },
 156         { BER_BVC("oldest"), DB_LOCK_OLDEST },
 157         { BER_BVC("random"), DB_LOCK_RANDOM },
 158         { BER_BVC("youngest"), DB_LOCK_YOUNGEST },
 159         { BER_BVC("fewest"), DB_LOCK_MINLOCKS },
 160         { BER_BVNULL, 0 }
 161 };
 162
 163 /* perform periodic checkpoints */
 164 static void *
 165 bdb_checkpoint( void *ctx, void *arg )
 166 {
 167         struct re_s *rtask = arg;
 168         struct bdb_info *bdb = rtask->arg;
 169
 170         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
 171                 bdb->bi_txn_cp_min, 0 );
 172         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 173         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 174         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 175         return NULL;
 176 }
 177
 178 /* reindex entries on the fly */
 179 static void *
 180 bdb_online_index( void *ctx, void *arg )
 181 {
 182         struct re_s *rtask = arg;
 183         BackendDB *be = rtask->arg;
 184         struct bdb_info *bdb = be->be_private;
 185
 186         Connection conn = {0};
 187         OperationBuffer opbuf;
 188         Operation *op;
 189
 190         DBC *curs;
 191         DBT key, data;
 192         DB_TXN *txn;
 193         DB_LOCK lock;
 194         BDB_LOCKER locker;
 195         ID id, nid;
 196         EntryInfo *ei;
 197         int rc, getnext = 1;
 198         int i;
 199
 200         connection_fake_init( &conn, &opbuf, ctx );
 201         op = &opbuf.ob_op;
 202
 203         op->o_bd = be;
 204
 205         DBTzero( &key );
 206         DBTzero( &data );
 207
 208         id = 1;
 209         key.data = &nid;
 210         key.size = key.ulen = sizeof(ID);
 211         key.flags = DB_DBT_USERMEM;
 212
 213         data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
 214         data.dlen = data.ulen = 0;
 215
 216         while ( 1 ) {
 217                 if ( slapd_shutdown )
 218                         break;
 219
 220                 rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &txn, bdb->bi_db_opflags );
 221                 if ( rc )
 222                         break;
 223                 locker = TXN_ID( txn );
 224                 if ( getnext ) {
 225                         getnext = 0;
 226                         BDB_ID2DISK( id, &nid );
 227                         rc = bdb->bi_id2entry->bdi_db->cursor(
 228                                 bdb->bi_id2entry->bdi_db, txn, &curs, bdb->bi_db_opflags );
 229                         if ( rc ) {
 230                                 TXN_ABORT( txn );
 231                                 break;
 232                         }
 233                         rc = curs->c_get( curs, &key, &data, DB_SET_RANGE );
 234                         curs->c_close( curs );
 235                         if ( rc ) {
 236                                 TXN_ABORT( txn );
 237                                 if ( rc == DB_NOTFOUND )
 238                                         rc = 0;
 239                                 if ( rc == DB_LOCK_DEADLOCK ) {
 240                                         ldap_pvt_thread_yield();
 241                                         continue;
 242                                 }
 243                                 break;
 244                         }
 245                         BDB_DISK2ID( &nid, &id );
 246                 }
 247
 248                 ei = NULL;
 249                 rc = bdb_cache_find_id( op, txn, id, &ei, 0, locker, &lock );
 250                 if ( rc ) {
 251                         TXN_ABORT( txn );
 252                         if ( rc == DB_LOCK_DEADLOCK ) {
 253                                 ldap_pvt_thread_yield();
 254                                 continue;
 255                         }
 256                         if ( rc == DB_NOTFOUND ) {
 257                                 id++;
 258                                 getnext = 1;
 259                                 continue;
 260                         }
 261                         break;
 262                 }
 263                 if ( ei->bei_e ) {
 264                         rc = bdb_index_entry( op, txn, BDB_INDEX_UPDATE_OP, ei->bei_e );
 265                         if ( rc == DB_LOCK_DEADLOCK ) {
 266                                 TXN_ABORT( txn );
 267                                 ldap_pvt_thread_yield();
 268                                 continue;
 269                         }
 270                         if ( rc == 0 ) {
 271                                 rc = TXN_COMMIT( txn, 0 );
 272                                 txn = NULL;
 273                         }
 274                         if ( rc )
 275                                 break;
 276                 }
 277                 id++;
 278                 getnext = 1;
 279         }
 280
 281         for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 282                 if ( bdb->bi_attrs[ i ]->ai_indexmask & BDB_INDEX_DELETING
 283                         || bdb->bi_attrs[ i ]->ai_newmask == 0 )
 284                 {
 285                         continue;
 286                 }
 287                 bdb->bi_attrs[ i ]->ai_indexmask = bdb->bi_attrs[ i ]->ai_newmask;
 288                 bdb->bi_attrs[ i ]->ai_newmask = 0;
 289         }
 290
 291         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 292         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 293         bdb->bi_index_task = NULL;
 294         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
 295         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 296
 297         return NULL;
 298 }
 299
 300 /* Cleanup loose ends after Modify completes */
 301 static int
 302 bdb_cf_cleanup( ConfigArgs *c )
 303 {
 304         struct bdb_info *bdb = c->be->be_private;
 305         int rc = 0;
 306
 307         if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
 308                 if ( bdb->bi_db_config ) {
 309                         int i;
 310                         FILE *f = fopen( bdb->bi_db_config_path, "w" );
 311                         if ( f ) {
 312                                 for (i=0; bdb->bi_db_config[i].bv_val; i++)
 313                                         fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
 314                                 fclose( f );
 315                         }
 316                 } else {
 317                         unlink( bdb->bi_db_config_path );
 318                 }
 319                 bdb->bi_flags ^= BDB_UPD_CONFIG;
 320         }
 321
 322         if ( bdb->bi_flags & BDB_DEL_INDEX ) {
 323                 bdb_attr_flush( bdb );
 324                 bdb->bi_flags ^= BDB_DEL_INDEX;
 325         }
 326
 327         if ( bdb->bi_flags & BDB_RE_OPEN ) {
 328                 bdb->bi_flags ^= BDB_RE_OPEN;
 329                 rc = c->be->bd_info->bi_db_close( c->be, NULL );
 330                 if ( rc == 0 )
 331                         rc = c->be->bd_info->bi_db_open( c->be, NULL );
 332                 /* If this fails, we need to restart */
 333                 if ( rc ) {
 334                         slapd_shutdown = 2;
 335                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
 336                                 "failed to reopen database, rc=%d", rc );
 337                         Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
 338                                 ": %s\n", c->cr_msg, 0, 0 );
 339                         rc = LDAP_OTHER;
 340                 }
 341         }
 342         return rc;
 343 }
 344
 345 static int
 346 bdb_cf_gen( ConfigArgs *c )
 347 {
 348         struct bdb_info *bdb = c->be->be_private;
 349         int rc;
 350
 351         if ( c->op == SLAP_CONFIG_EMIT ) {
 352                 rc = 0;
 353                 switch( c->type ) {
 354                 case BDB_CHKPT:
 355                         if ( bdb->bi_txn_cp ) {
 356                                 char buf[64];
 357                                 struct berval bv;
 358                                 bv.bv_len = sprintf( buf, "%d %d", bdb->bi_txn_cp_kbyte,
 359                                         bdb->bi_txn_cp_min );
 360                                 bv.bv_val = buf;
 361                                 value_add_one( &c->rvalue_vals, &bv );
 362                         } else{
 363                                 rc = 1;
 364                         }
 365                         break;
 366
 367                 case BDB_DIRECTORY:
 368                         if ( bdb->bi_dbenv_home ) {
 369                                 c->value_string = ch_strdup( bdb->bi_dbenv_home );
 370                         } else {
 371                                 rc = 1;
 372                         }
 373                         break;
 374
 375                 case BDB_CONFIG:
 376                         if ( !( bdb->bi_flags & BDB_IS_OPEN )
 377                                 && !bdb->bi_db_config )
 378                         {
 379                                 char    buf[SLAP_TEXT_BUFLEN];
 380                                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 381                                 struct berval bv;
 382
 383                                 if ( f ) {
 384                                         bdb->bi_flags |= BDB_HAS_CONFIG;
 385                                         while ( fgets( buf, sizeof(buf), f )) {
 386                                                 ber_str2bv( buf, 0, 1, &bv );
 387                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\n' ) {
 388                                                         bv.bv_len--;
 389                                                         bv.bv_val[bv.bv_len] = '\0';
 390                                                 }
 391                                                 /* shouldn't need this, but ... */
 392                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\r' ) {
 393                                                         bv.bv_len--;
 394                                                         bv.bv_val[bv.bv_len] = '\0';
 395                                                 }
 396                                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 397                                         }
 398                                         fclose( f );
 399                                 }
 400                         }
 401                         if ( bdb->bi_db_config ) {
 402                                 int i;
 403                                 struct berval bv;
 404
 405                                 bv.bv_val = c->log;
 406                                 for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
 407                                         bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
 408                                                 bdb->bi_db_config[i].bv_val );
 409                                         value_add_one( &c->rvalue_vals, &bv );
 410                                 }
 411                         }
 412                         if ( !c->rvalue_vals ) rc = 1;
 413                         break;
 414
 415                 case BDB_NOSYNC:
 416                         if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
 417                                 c->value_int = 1;
 418                         break;
 419
 420                 case BDB_INDEX:
 421                         bdb_attr_index_unparse( bdb, &c->rvalue_vals );
 422                         if ( !c->rvalue_vals ) rc = 1;
 423                         break;
 424
 425                 case BDB_LOCKD:
 426                         rc = 1;
 427                         if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
 428                                 int i;
 429                                 for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
 430                                         if ( bdb->bi_lock_detect == bdb_lockd[i].mask ) {
 431                                                 value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
 432                                                 rc = 0;
 433                                                 break;
 434                                         }
 435                                 }
 436                         }
 437                         break;
 438
 439                 case BDB_SSTACK:
 440                         c->value_int = bdb->bi_search_stack_depth;
 441                         break;
 442                 }
 443                 return rc;
 444         } else if ( c->op == LDAP_MOD_DELETE ) {
 445                 rc = 0;
 446                 switch( c->type ) {
 447                 /* single-valued no-ops */
 448                 case BDB_LOCKD:
 449                 case BDB_SSTACK:
 450                         break;
 451
 452                 case BDB_CHKPT:
 453                         if ( bdb->bi_txn_cp_task ) {
 454                                 struct re_s *re = bdb->bi_txn_cp_task;
 455                                 bdb->bi_txn_cp_task = NULL;
 456                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
 457                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
 458                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
 459                         }
 460                         bdb->bi_txn_cp = 0;
 461                         break;
 462                 case BDB_CONFIG:
 463                         if ( c->valx < 0 ) {
 464                                 ber_bvarray_free( bdb->bi_db_config );
 465                                 bdb->bi_db_config = NULL;
 466                         } else {
 467                                 int i = c->valx;
 468                                 ch_free( bdb->bi_db_config[i].bv_val );
 469                                 for (; bdb->bi_db_config[i].bv_val; i++)
 470                                         bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
 471                         }
 472                         bdb->bi_flags |= BDB_UPD_CONFIG;
 473                         c->cleanup = bdb_cf_cleanup;
 474                         break;
 475                 case BDB_DIRECTORY:
 476                         bdb->bi_flags |= BDB_RE_OPEN;
 477                         bdb->bi_flags ^= BDB_HAS_CONFIG;
 478                         ch_free( bdb->bi_dbenv_home );
 479                         bdb->bi_dbenv_home = NULL;
 480                         ch_free( bdb->bi_db_config_path );
 481                         bdb->bi_db_config_path = NULL;
 482                         c->cleanup = bdb_cf_cleanup;
 483                         ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
 484                         break;
 485                 case BDB_NOSYNC:
 486                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
 487                         break;
 488                 case BDB_INDEX:
 489                         if ( c->valx == -1 ) {
 490                                 int i;
 491
 492                                 /* delete all (FIXME) */
 493                                 for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 494                                         bdb->bi_attrs[i]->ai_indexmask |= BDB_INDEX_DELETING;
 495                                 }
 496                                 bdb->bi_flags |= BDB_DEL_INDEX;
 497                                 c->cleanup = bdb_cf_cleanup;
 498
 499                         } else {
 500                                 struct berval bv, def = BER_BVC("default");
 501                                 char *ptr;
 502
 503                                 for (ptr = c->line; !isspace( (unsigned char) *ptr ); ptr++);
 504
 505                                 bv.bv_val = c->line;
 506                                 bv.bv_len = ptr - bv.bv_val;
 507                                 if ( bvmatch( &bv, &def )) {
 508                                         bdb->bi_defaultmask = 0;
 509
 510                                 } else {
 511                                         int i;
 512                                         char **attrs;
 513                                         char sep;
 514
 515                                         sep = bv.bv_val[ bv.bv_len ];
 516                                         bv.bv_val[ bv.bv_len ] = '\0';
 517                                         attrs = ldap_str2charray( bv.bv_val, "," );
 518
 519                                         for ( i = 0; attrs[ i ]; i++ ) {
 520                                                 AttributeDescription *ad = NULL;
 521                                                 const char *text;
 522                                                 AttrInfo *ai;
 523
 524                                                 slap_str2ad( attrs[ i ], &ad, &text );
 525                                                 /* if we got here... */
 526                                                 assert( ad != NULL );
 527
 528                                                 ai = bdb_attr_mask( bdb, ad );
 529                                                 /* if we got here... */
 530                                                 assert( ai != NULL );
 531
 532                                                 ai->ai_indexmask |= BDB_INDEX_DELETING;
 533                                                 bdb->bi_flags |= BDB_DEL_INDEX;
 534                                                 c->cleanup = bdb_cf_cleanup;
 535                                         }
 536
 537                                         bv.bv_val[ bv.bv_len ] = sep;
 538                                         ldap_charray_free( attrs );
 539                                 }
 540                         }
 541                         break;
 542                 }
 543                 return rc;
 544         }
 545
 546         switch( c->type ) {
 547         case BDB_CHKPT: {
 548                 long    l;
 549                 bdb->bi_txn_cp = 1;
 550                 if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) {
 551                         fprintf( stderr, "%s: "
 552                                 "invalid kbyte \"%s\" in \"checkpoint\".\n",
 553                                 c->log, c->argv[1] );
 554                         return 1;
 555                 }
 556                 bdb->bi_txn_cp_kbyte = l;
 557                 if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) {
 558                         fprintf( stderr, "%s: "
 559                                 "invalid minutes \"%s\" in \"checkpoint\".\n",
 560                                 c->log, c->argv[2] );
 561                         return 1;
 562                 }
 563                 bdb->bi_txn_cp_min = l;
 564                 /* If we're in server mode and time-based checkpointing is enabled,
 565                  * submit a task to perform periodic checkpoints.
 566                  */
 567                 if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
 568                         struct re_s *re = bdb->bi_txn_cp_task;
 569                         if ( re ) {
 570                                 re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
 571                         } else {
 572                                 if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 573                                         fprintf( stderr, "%s: "
 574                                                 "\"checkpoint\" must occur after \"suffix\".\n",
 575                                                 c->log );
 576                                         return 1;
 577                                 }
 578                                 bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
 579                                         bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
 580                                         LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
 581                         }
 582                 }
 583                 } break;
 584
 585         case BDB_CONFIG: {
 586                 char *ptr = c->line;
 587                 struct berval bv;
 588
 589                 if ( c->op == SLAP_CONFIG_ADD ) {
 590                         ptr += STRLENOF("dbconfig");
 591                         while (!isspace((unsigned char)*ptr)) ptr++;
 592                         while (isspace((unsigned char)*ptr)) ptr++;
 593                 }
 594
 595                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 596                         bdb->bi_flags |= BDB_UPD_CONFIG;
 597                         c->cleanup = bdb_cf_cleanup;
 598                 } else {
 599                 /* If we're just starting up...
 600                  */
 601                         FILE *f;
 602                         /* If a DB_CONFIG file exists, or we don't know the path
 603                          * to the DB_CONFIG file, ignore these directives
 604                          */
 605                         if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
 606                                 break;
 607                         f = fopen( bdb->bi_db_config_path, "a" );
 608                         if ( f ) {
 609                                 /* FIXME: EBCDIC probably needs special handling */
 610                                 fprintf( f, "%s\n", ptr );
 611                                 fclose( f );
 612                         }
 613                 }
 614                 ber_str2bv( ptr, 0, 1, &bv );
 615                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 616                 }
 617                 break;
 618
 619         case BDB_DIRECTORY: {
 620                 FILE *f;
 621                 char *ptr, *testpath;
 622                 int len;
 623
 624                 len = strlen( c->value_string );
 625                 testpath = ch_malloc( len + STRLENOF(LDAP_DIRSEP) + STRLENOF("DUMMY") + 1 );
 626                 ptr = lutil_strcopy( testpath, c->value_string );
 627                 *ptr++ = LDAP_DIRSEP[0];
 628                 strcpy( ptr, "DUMMY" );
 629                 f = fopen( testpath, "w" );
 630                 if ( f ) {
 631                         fclose( f );
 632                         unlink( testpath );
 633                 }
 634                 ch_free( testpath );
 635                 if ( !f ) {
 636                         snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: invalid path: %s",
 637                                 c->log, strerror( errno ));
 638                         Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 );
 639                         return -1;
 640                 }
 641
 642                 if ( bdb->bi_dbenv_home )
 643                         ch_free( bdb->bi_dbenv_home );
 644                 bdb->bi_dbenv_home = c->value_string;
 645
 646                 /* See if a DB_CONFIG file already exists here */
 647                 if ( bdb->bi_db_config_path )
 648                         ch_free( bdb->bi_db_config_path );
 649                 bdb->bi_db_config_path = ch_malloc( len +
 650                         STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
 651                 ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
 652                 *ptr++ = LDAP_DIRSEP[0];
 653                 strcpy( ptr, "DB_CONFIG" );
 654
 655                 f = fopen( bdb->bi_db_config_path, "r" );
 656                 if ( f ) {
 657                         bdb->bi_flags |= BDB_HAS_CONFIG;
 658                         fclose(f);
 659                 }
 660                 }
 661                 break;
 662
 663         case BDB_NOSYNC:
 664                 if ( c->value_int )
 665                         bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
 666                 else
 667                         bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
 668                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 669                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
 670                                 c->value_int );
 671                 }
 672                 break;
 673
 674         case BDB_INDEX:
 675                 rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
 676                         c->argc - 1, &c->argv[1] );
 677
 678                 if( rc != LDAP_SUCCESS ) return 1;
 679                 if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
 680                         /* Start the task as soon as we finish here. Set a long
 681                          * interval (10 hours) so that it only gets scheduled once.
 682                          */
 683                         if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 684                                 fprintf( stderr, "%s: "
 685                                         "\"index\" must occur after \"suffix\".\n",
 686                                         c->log );
 687                                 return 1;
 688                         }
 689                         bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
 690                                 bdb_online_index, c->be,
 691                                 LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
 692                 }
 693                 break;
 694
 695         case BDB_LOCKD:
 696                 rc = verb_to_mask( c->argv[1], bdb_lockd );
 697                 if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
 698                         fprintf( stderr, "%s: "
 699                                 "bad policy (%s) in \"lockDetect <policy>\" line\n",
 700                                 c->log, c->argv[1] );
 701                         return 1;
 702                 }
 703                 bdb->bi_lock_detect = rc;
 704                 break;
 705
 706         case BDB_SSTACK:
 707                 if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
 708                         fprintf( stderr,
 709                 "%s: depth %d too small, using %d\n",
 710                         c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
 711                         c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
 712                 }
 713                 bdb->bi_search_stack_depth = c->value_int;
 714                 break;
 715         }
 716         return 0;
 717 }
 718
 719 int bdb_back_init_cf( BackendInfo *bi )
 720 {
 721         int rc;
 722         bi->bi_cf_ocs = bdbocs;
 723
 724         rc = config_register_schema( bdbcfg, bdbocs );
 725         if ( rc ) return rc;
 726         return 0;
 727 }