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
 193         connection_fake_init( &conn, op, ctx );
 194
 195         op->o_bd = be;
 196
 197         DBTzero( &key );
 198         DBTzero( &data );
 199
 200         id = 1;
 201         key.data = &nid;
 202         key.size = key.ulen = sizeof(ID);
 203         key.flags = DB_DBT_USERMEM;
 204
 205         data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
 206         data.dlen = data.ulen = 0;
 207
 208         while ( 1 ) {
 209                 if ( slapd_shutdown )
 210                         break;
 211
 212                 rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &txn, bdb->bi_db_opflags );
 213                 if ( rc )
 214                         break;
 215                 locker = TXN_ID( txn );
 216                 if ( getnext ) {
 217                         getnext = 0;
 218                         BDB_ID2DISK( id, &nid );
 219                         rc = bdb->bi_id2entry->bdi_db->cursor(
 220                                 bdb->bi_id2entry->bdi_db, txn, &curs, bdb->bi_db_opflags );
 221                         if ( rc ) {
 222                                 TXN_ABORT( txn );
 223                                 break;
 224                         }
 225                         rc = curs->c_get( curs, &key, &data, DB_SET_RANGE );
 226                         curs->c_close( curs );
 227                         if ( rc ) {
 228                                 TXN_ABORT( txn );
 229                                 if ( rc == DB_NOTFOUND )
 230                                         rc = 0;
 231                                 if ( rc == DB_LOCK_DEADLOCK ) {
 232                                         ldap_pvt_thread_yield();
 233                                         continue;
 234                                 }
 235                                 break;
 236                         }
 237                         BDB_DISK2ID( &nid, &id );
 238                 }
 239
 240                 ei = NULL;
 241                 rc = bdb_cache_find_id( op, txn, id, &ei, 0, locker, &lock );
 242                 if ( rc ) {
 243                         TXN_ABORT( txn );
 244                         if ( rc == DB_LOCK_DEADLOCK ) {
 245                                 ldap_pvt_thread_yield();
 246                                 continue;
 247                         }
 248                         if ( rc == DB_NOTFOUND ) {
 249                                 id++;
 250                                 getnext = 1;
 251                                 continue;
 252                         }
 253                         break;
 254                 }
 255                 if ( ei->bei_e ) {
 256                         rc = bdb_index_entry( op, txn, BDB_INDEX_UPDATE_OP, ei->bei_e );
 257                         if ( rc == DB_LOCK_DEADLOCK ) {
 258                                 TXN_ABORT( txn );
 259                                 ldap_pvt_thread_yield();
 260                                 continue;
 261                         }
 262                         if ( rc == 0 ) {
 263                                 rc = TXN_COMMIT( txn, 0 );
 264                                 txn = NULL;
 265                         }
 266                         if ( rc )
 267                                 break;
 268                 }
 269                 id++;
 270                 getnext = 1;
 271         }
 272
 273         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 274         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 275         bdb->bi_index_task = NULL;
 276         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
 277         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 278
 279         return NULL;
 280 }
 281
 282 /* Cleanup loose ends after Modify completes */
 283 static int
 284 bdb_cf_cleanup( ConfigArgs *c )
 285 {
 286         struct bdb_info *bdb = c->be->be_private;
 287         int rc = 0;
 288
 289         if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
 290                 if ( bdb->bi_db_config ) {
 291                         int i;
 292                         FILE *f = fopen( bdb->bi_db_config_path, "w" );
 293                         if ( f ) {
 294                                 for (i=0; bdb->bi_db_config[i].bv_val; i++)
 295                                         fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
 296                                 fclose( f );
 297                         }
 298                 } else {
 299                         unlink( bdb->bi_db_config_path );
 300                 }
 301                 bdb->bi_flags ^= BDB_UPD_CONFIG;
 302         }
 303
 304         if ( bdb->bi_flags & BDB_DEL_INDEX ) {
 305                 bdb_attr_flush( bdb );
 306                 bdb->bi_flags ^= BDB_DEL_INDEX;
 307         }
 308
 309         if ( bdb->bi_flags & BDB_RE_OPEN ) {
 310                 bdb->bi_flags ^= BDB_RE_OPEN;
 311                 rc = c->be->bd_info->bi_db_close( c->be );
 312                 if ( rc == 0 )
 313                         rc = c->be->bd_info->bi_db_open( c->be );
 314                 /* If this fails, we need to restart */
 315                 if ( rc ) {
 316                         slapd_shutdown = 2;
 317                         Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
 318                                 ": failed to reopen database, rc=%d", rc, 0, 0 );
 319                 }
 320         }
 321         return rc;
 322 }
 323
 324 static int
 325 bdb_cf_gen(ConfigArgs *c)
 326 {
 327         struct bdb_info *bdb = c->be->be_private;
 328         int rc;
 329
 330         if ( c->op == SLAP_CONFIG_EMIT ) {
 331                 rc = 0;
 332                 switch( c->type ) {
 333                 case BDB_CHKPT:
 334                         if (bdb->bi_txn_cp ) {
 335                                 char buf[64];
 336                                 struct berval bv;
 337                                 bv.bv_len = sprintf( buf, "%d %d", bdb->bi_txn_cp_kbyte,
 338                                         bdb->bi_txn_cp_min );
 339                                 bv.bv_val = buf;
 340                                 value_add_one( &c->rvalue_vals, &bv );
 341                         } else{
 342                                 rc = 1;
 343                         }
 344                         break;
 345
 346                 case BDB_DIRECTORY:
 347                         if ( bdb->bi_dbenv_home ) {
 348                                 c->value_string = ch_strdup( bdb->bi_dbenv_home );
 349                         } else {
 350                                 rc = 1;
 351                         }
 352                         break;
 353
 354                 case BDB_CONFIG:
 355                         if (( slapMode&SLAP_SERVER_MODE ) && !( bdb->bi_flags&BDB_IS_OPEN )
 356                                 && !bdb->bi_db_config ) {
 357                                 char    buf[SLAP_TEXT_BUFLEN];
 358                                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 359                                 struct berval bv;
 360
 361                                 if ( f ) {
 362                                         bdb->bi_flags |= BDB_HAS_CONFIG;
 363                                         while ( fgets( buf, sizeof(buf), f )) {
 364                                                 ber_str2bv( buf, 0, 1, &bv );
 365                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\n' ) {
 366                                                         bv.bv_len--;
 367                                                         bv.bv_val[bv.bv_len] = '\0';
 368                                                 }
 369                                                 /* shouldn't need this, but ... */
 370                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\r' ) {
 371                                                         bv.bv_len--;
 372                                                         bv.bv_val[bv.bv_len] = '\0';
 373                                                 }
 374                                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 375                                         }
 376                                         fclose( f );
 377                                 }
 378                         }
 379                         if ( bdb->bi_db_config ) {
 380                                 int i;
 381                                 struct berval bv;
 382
 383                                 bv.bv_val = c->log;
 384                                 for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
 385                                         bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
 386                                                 bdb->bi_db_config[i].bv_val );
 387                                         value_add_one( &c->rvalue_vals, &bv );
 388                                 }
 389                         }
 390                         if ( !c->rvalue_vals ) rc = 1;
 391                         break;
 392
 393                 case BDB_NOSYNC:
 394                         if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
 395                                 c->value_int = 1;
 396                         break;
 397
 398                 case BDB_INDEX:
 399                         bdb_attr_index_unparse( bdb, &c->rvalue_vals );
 400                         if ( !c->rvalue_vals ) rc = 1;
 401                         break;
 402
 403                 case BDB_LOCKD:
 404                         rc = 1;
 405                         if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
 406                                 int i;
 407                                 for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
 408                                         if ( bdb->bi_lock_detect == bdb_lockd[i].mask ) {
 409                                                 value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
 410                                                 rc = 0;
 411                                                 break;
 412                                         }
 413                                 }
 414                         }
 415                         break;
 416
 417                 case BDB_SSTACK:
 418                         c->value_int = bdb->bi_search_stack_depth;
 419                         break;
 420                 }
 421                 return rc;
 422         } else if ( c->op == LDAP_MOD_DELETE ) {
 423                 rc = 0;
 424                 switch( c->type ) {
 425                 /* single-valued no-ops */
 426                 case BDB_LOCKD:
 427                 case BDB_SSTACK:
 428                         break;
 429
 430                 case BDB_CHKPT:
 431                         if ( bdb->bi_txn_cp_task ) {
 432                                 struct re_s *re = bdb->bi_txn_cp_task;
 433                                 bdb->bi_txn_cp_task = NULL;
 434                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ))
 435                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
 436                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
 437                         }
 438                         bdb->bi_txn_cp = 0;
 439                         break;
 440                 case BDB_CONFIG:
 441                         if ( c->valx < 0 ) {
 442                                 ber_bvarray_free( bdb->bi_db_config );
 443                                 bdb->bi_db_config = NULL;
 444                         } else {
 445                                 int i = c->valx;
 446                                 ch_free( bdb->bi_db_config[i].bv_val );
 447                                 for (; bdb->bi_db_config[i].bv_val; i++)
 448                                         bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
 449                         }
 450                         bdb->bi_flags |= BDB_UPD_CONFIG;
 451                         c->cleanup = bdb_cf_cleanup;
 452                         break;
 453                 case BDB_DIRECTORY:
 454                         bdb->bi_flags |= BDB_RE_OPEN;
 455                         bdb->bi_flags ^= BDB_HAS_CONFIG;
 456                         ch_free( bdb->bi_dbenv_home );
 457                         bdb->bi_dbenv_home = NULL;
 458                         ch_free( bdb->bi_db_config_path );
 459                         bdb->bi_db_config_path = NULL;
 460                         c->cleanup = bdb_cf_cleanup;
 461                         ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
 462                         ldap_pvt_thread_pool_purgekey( ((char *)bdb->bi_dbenv) + 1 );
 463                         break;
 464                 case BDB_NOSYNC:
 465                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
 466                         break;
 467                 case BDB_INDEX: {
 468                         AttributeDescription *ad = NULL;
 469                         struct berval bv, def = BER_BVC("default");
 470                         char *ptr;
 471                         const char *text;
 472                         for (ptr = c->line; !isspace( *ptr ); ptr++);
 473                         bv.bv_val = c->line;
 474                         bv.bv_len = ptr - bv.bv_val;
 475                         if ( bvmatch( &bv, &def )) {
 476                                 bdb->bi_defaultmask = 0;
 477                         } else {
 478                                 slap_bv2ad( &bv, &ad, &text );
 479                                 if ( ad ) {
 480                                         AttrInfo *ai = bdb_attr_mask( bdb, ad );
 481                                         ai->ai_indexmask |= BDB_INDEX_DELETING;
 482                                         bdb->bi_flags |= BDB_DEL_INDEX;
 483                                         c->cleanup = bdb_cf_cleanup;
 484                                 }
 485                         }
 486                         }
 487                         break;
 488                 }
 489                 return rc;
 490         }
 491
 492         switch( c->type ) {
 493         case BDB_CHKPT: {
 494                 long    l;
 495                 bdb->bi_txn_cp = 1;
 496                 if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) {
 497                         fprintf( stderr, "%s: "
 498                                 "invalid kbyte \"%s\" in \"checkpoint\".\n",
 499                                 c->log, c->argv[1] );
 500                         return 1;
 501                 }
 502                 bdb->bi_txn_cp_kbyte = l;
 503                 if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) {
 504                         fprintf( stderr, "%s: "
 505                                 "invalid minutes \"%s\" in \"checkpoint\".\n",
 506                                 c->log, c->argv[2] );
 507                         return 1;
 508                 }
 509                 bdb->bi_txn_cp_min = l;
 510                 /* If we're in server mode and time-based checkpointing is enabled,
 511                  * submit a task to perform periodic checkpoints.
 512                  */
 513                 if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
 514                         struct re_s *re = bdb->bi_txn_cp_task;
 515                         if ( re ) {
 516                                 re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
 517                         } else {
 518                                 if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 519                                         fprintf( stderr, "%s: "
 520                                                 "\"checkpoint\" must occur after \"suffix\".\n",
 521                                                 c->log );
 522                                         return 1;
 523                                 }
 524                                 bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
 525                                         bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
 526                                         LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
 527                         }
 528                 }
 529                 } break;
 530
 531         case BDB_CONFIG: {
 532                 char *ptr = c->line;
 533                 struct berval bv;
 534
 535                 if ( c->op == SLAP_CONFIG_ADD ) {
 536                         ptr += STRLENOF("dbconfig");
 537                         while (!isspace(*ptr)) ptr++;
 538                         while (isspace(*ptr)) ptr++;
 539                 }
 540
 541                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 542                         bdb->bi_flags |= BDB_UPD_CONFIG;
 543                         c->cleanup = bdb_cf_cleanup;
 544                 } else {
 545                 /* If we're just starting up...
 546                  */
 547                         FILE *f;
 548                         /* If a DB_CONFIG file exists, or we don't know the path
 549                          * to the DB_CONFIG file, ignore these directives
 550                          */
 551                         if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
 552                                 break;
 553                         f = fopen( bdb->bi_db_config_path, "a" );
 554                         if ( f ) {
 555                                 /* FIXME: EBCDIC probably needs special handling */
 556                                 fprintf( f, "%s\n", ptr );
 557                                 fclose( f );
 558                         }
 559                 }
 560                 ber_str2bv( ptr, 0, 1, &bv );
 561                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 562                 }
 563                 break;
 564
 565         case BDB_DIRECTORY: {
 566                 FILE *f;
 567                 char *ptr;
 568
 569                 if ( bdb->bi_dbenv_home )
 570                         ch_free( bdb->bi_dbenv_home );
 571                 bdb->bi_dbenv_home = c->value_string;
 572
 573                 /* See if a DB_CONFIG file already exists here */
 574                 if ( bdb->bi_db_config_path )
 575                         ch_free( bdb->bi_db_config_path );
 576                 bdb->bi_db_config_path = ch_malloc( strlen( bdb->bi_dbenv_home ) +
 577                         STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
 578                 ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
 579                 *ptr++ = LDAP_DIRSEP[0];
 580                 strcpy( ptr, "DB_CONFIG" );
 581
 582                 f = fopen( bdb->bi_db_config_path, "r" );
 583                 if ( f ) {
 584                         bdb->bi_flags |= BDB_HAS_CONFIG;
 585                         fclose(f);
 586                 }
 587                 }
 588                 break;
 589
 590         case BDB_NOSYNC:
 591                 if ( c->value_int )
 592                         bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
 593                 else
 594                         bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
 595                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 596                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
 597                                 c->value_int );
 598                 }
 599                 break;
 600
 601         case BDB_INDEX:
 602                 rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
 603                         c->argc - 1, &c->argv[1] );
 604
 605                 if( rc != LDAP_SUCCESS ) return 1;
 606                 if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
 607                         /* Start the task as soon as we finish here. Set a long
 608                          * interval (10 hours) so that it only gets scheduled once.
 609                          */
 610                         if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 611                                 fprintf( stderr, "%s: "
 612                                         "\"index\" must occur after \"suffix\".\n",
 613                                         c->log );
 614                                 return 1;
 615                         }
 616                         bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
 617                                 bdb_online_index, c->be,
 618                                 LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
 619                 }
 620                 break;
 621
 622         case BDB_LOCKD:
 623                 rc = verb_to_mask( c->argv[1], bdb_lockd );
 624                 if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
 625                         fprintf( stderr, "%s: "
 626                                 "bad policy (%s) in \"lockDetect <policy>\" line\n",
 627                                 c->log, c->argv[1] );
 628                         return 1;
 629                 }
 630                 bdb->bi_lock_detect = rc;
 631                 break;
 632
 633         case BDB_SSTACK:
 634                 if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
 635                         fprintf( stderr,
 636                 "%s: depth %d too small, using %d\n",
 637                         c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
 638                         c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
 639                 }
 640                 bdb->bi_search_stack_depth = c->value_int;
 641                 break;
 642         }
 643         return 0;
 644 }
 645
 646 int bdb_back_init_cf( BackendInfo *bi )
 647 {
 648         int rc;
 649         bi->bi_cf_ocs = bdbocs;
 650
 651         rc = config_register_schema( bdbcfg, bdbocs );
 652         if ( rc ) return rc;
 653         return 0;
 654 }