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