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