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 2000-2008 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/ctype.h>
  21 #include <ac/string.h>
  22 #include <ac/errno.h>
  23
  24 #include "back-bdb.h"
  25
  26 #include "config.h"
  27
  28 #include "lutil.h"
  29 #include "ldap_rq.h"
  30
  31 #ifdef DB_DIRTY_READ
  32 #       define  SLAP_BDB_ALLOW_DIRTY_READ
  33 #endif
  34
  35 #define bdb_cf_gen              BDB_SYMBOL(cf_gen)
  36 #define bdb_cf_cleanup          BDB_SYMBOL(cf_cleanup)
  37 #define bdb_checkpoint          BDB_SYMBOL(checkpoint)
  38 #define bdb_online_index        BDB_SYMBOL(online_index)
  39
  40 static ConfigDriver bdb_cf_gen;
  41
  42 enum {
  43         BDB_CHKPT = 1,
  44         BDB_CONFIG,
  45         BDB_CRYPTFILE,
  46         BDB_CRYPTKEY,
  47         BDB_DIRECTORY,
  48         BDB_NOSYNC,
  49         BDB_DIRTYR,
  50         BDB_INDEX,
  51         BDB_LOCKD,
  52         BDB_SSTACK,
  53         BDB_MODE,
  54         BDB_PGSIZE
  55 };
  56
  57 static ConfigTable bdbcfg[] = {
  58         { "directory", "dir", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_DIRECTORY,
  59                 bdb_cf_gen, "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
  60                         "DESC 'Directory for database content' "
  61                         "EQUALITY caseIgnoreMatch "
  62                         "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
  63         { "cachefree", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
  64                 (void *)offsetof(struct bdb_info, bi_cache.c_minfree),
  65                 "( OLcfgDbAt:1.11 NAME 'olcDbCacheFree' "
  66                         "DESC 'Number of extra entries to free when max is reached' "
  67                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  68         { "cachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
  69                 (void *)offsetof(struct bdb_info, bi_cache.c_maxsize),
  70                 "( OLcfgDbAt:1.1 NAME 'olcDbCacheSize' "
  71                         "DESC 'Entry cache size in entries' "
  72                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  73         { "checkpoint", "kbyte> <min", 3, 3, 0, ARG_MAGIC|BDB_CHKPT,
  74                 bdb_cf_gen, "( OLcfgDbAt:1.2 NAME 'olcDbCheckpoint' "
  75                         "DESC 'Database checkpoint interval in kbytes and minutes' "
  76                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
  77         { "cryptfile", "file", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_CRYPTFILE,
  78                 bdb_cf_gen, "( OLcfgDbAt:1.13 NAME 'olcDbCryptFile' "
  79                         "DESC 'Pathname of file containing the DB encryption key' "
  80                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
  81         { "cryptkey", "key", 2, 2, 0, ARG_BERVAL|ARG_MAGIC|BDB_CRYPTKEY,
  82                 bdb_cf_gen, "( OLcfgDbAt:1.14 NAME 'olcDbCryptKey' "
  83                         "DESC 'DB encryption key' "
  84                         "SYNTAX OMsOctetString SINGLE-VALUE )",NULL, NULL },
  85         { "dbconfig", "DB_CONFIG setting", 1, 0, 0, ARG_MAGIC|BDB_CONFIG,
  86                 bdb_cf_gen, "( OLcfgDbAt:1.3 NAME 'olcDbConfig' "
  87                         "DESC 'BerkeleyDB DB_CONFIG configuration directives' "
  88                         "SYNTAX OMsIA5String X-ORDERED 'VALUES' )", NULL, NULL },
  89         { "dbnosync", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_NOSYNC,
  90                 bdb_cf_gen, "( OLcfgDbAt:1.4 NAME 'olcDbNoSync' "
  91                         "DESC 'Disable synchronous database writes' "
  92                         "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  93         { "dbpagesize", "db> <size", 3, 3, 0, ARG_MAGIC|BDB_PGSIZE,
  94                 bdb_cf_gen, "( OLcfgDbAt:1.15 NAME 'olcDbPageSize' "
  95                         "DESC 'Page size of specified DB, in Kbytes' "
  96                         "EQUALITY caseExactMatch "
  97                         "SYNTAX OMsDirectoryString )", NULL, NULL },
  98         { "dirtyread", NULL, 1, 2, 0,
  99 #ifdef SLAP_BDB_ALLOW_DIRTY_READ
 100                 ARG_ON_OFF|ARG_MAGIC|BDB_DIRTYR, bdb_cf_gen,
 101 #else
 102                 ARG_IGNORED, NULL,
 103 #endif
 104                 "( OLcfgDbAt:1.5 NAME 'olcDbDirtyRead' "
 105                 "DESC 'Allow reads of uncommitted data' "
 106                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
 107         { "dncachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
 108                 (void *)offsetof(struct bdb_info, bi_cache.c_eimax),
 109                 "( OLcfgDbAt:1.12 NAME 'olcDbDNcacheSize' "
 110                         "DESC 'DN cache size' "
 111                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 112         { "idlcachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
 113                 (void *)offsetof(struct bdb_info, bi_idl_cache_max_size),
 114                 "( OLcfgDbAt:1.6 NAME 'olcDbIDLcacheSize' "
 115                 "DESC 'IDL cache size in IDLs' "
 116                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 117         { "index", "attr> <[pres,eq,approx,sub]", 2, 3, 0, ARG_MAGIC|BDB_INDEX,
 118                 bdb_cf_gen, "( OLcfgDbAt:0.2 NAME 'olcDbIndex' "
 119                 "DESC 'Attribute index parameters' "
 120                 "EQUALITY caseIgnoreMatch "
 121                 "SYNTAX OMsDirectoryString )", NULL, NULL },
 122         { "linearindex", NULL, 1, 2, 0, ARG_ON_OFF|ARG_OFFSET,
 123                 (void *)offsetof(struct bdb_info, bi_linear_index),
 124                 "( OLcfgDbAt:1.7 NAME 'olcDbLinearIndex' "
 125                 "DESC 'Index attributes one at a time' "
 126                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
 127         { "lockdetect", "policy", 2, 2, 0, ARG_MAGIC|BDB_LOCKD,
 128                 bdb_cf_gen, "( OLcfgDbAt:1.8 NAME 'olcDbLockDetect' "
 129                 "DESC 'Deadlock detection algorithm' "
 130                 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 131         { "mode", "mode", 2, 2, 0, ARG_MAGIC|BDB_MODE,
 132                 bdb_cf_gen, "( OLcfgDbAt:0.3 NAME 'olcDbMode' "
 133                 "DESC 'Unix permissions of database files' "
 134                 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 135         { "searchstack", "depth", 2, 2, 0, ARG_INT|ARG_MAGIC|BDB_SSTACK,
 136                 bdb_cf_gen, "( OLcfgDbAt:1.9 NAME 'olcDbSearchStack' "
 137                 "DESC 'Depth of search stack in IDLs' "
 138                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 139         { "shm_key", "key", 2, 2, 0, ARG_LONG|ARG_OFFSET,
 140                 (void *)offsetof(struct bdb_info, bi_shm_key),
 141                 "( OLcfgDbAt:1.10 NAME 'olcDbShmKey' "
 142                 "DESC 'Key for shared memory region' "
 143                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 144         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 145                 NULL, NULL, NULL, NULL }
 146 };
 147
 148 static ConfigOCs bdbocs[] = {
 149         {
 150 #ifdef BDB_HIER
 151                 "( OLcfgDbOc:1.2 "
 152                 "NAME 'olcHdbConfig' "
 153                 "DESC 'HDB backend configuration' "
 154 #else
 155                 "( OLcfgDbOc:1.1 "
 156                 "NAME 'olcBdbConfig' "
 157                 "DESC 'BDB backend configuration' "
 158 #endif
 159                 "SUP olcDatabaseConfig "
 160                 "MUST olcDbDirectory "
 161                 "MAY ( olcDbCacheSize $ olcDbCheckpoint $ olcDbConfig $ "
 162                 "olcDbCryptFile $ olcDbCryptKey $ "
 163                 "olcDbNoSync $ olcDbDirtyRead $ olcDbIDLcacheSize $ "
 164                 "olcDbIndex $ olcDbLinearIndex $ olcDbLockDetect $ "
 165                 "olcDbMode $ olcDbSearchStack $ olcDbShmKey $ "
 166                 "olcDbCacheFree $ olcDbDNcacheSize $ olcDbPageSize ) )",
 167                         Cft_Database, bdbcfg },
 168         { NULL, 0, NULL }
 169 };
 170
 171 static slap_verbmasks bdb_lockd[] = {
 172         { BER_BVC("default"), DB_LOCK_DEFAULT },
 173         { BER_BVC("oldest"), DB_LOCK_OLDEST },
 174         { BER_BVC("random"), DB_LOCK_RANDOM },
 175         { BER_BVC("youngest"), DB_LOCK_YOUNGEST },
 176         { BER_BVC("fewest"), DB_LOCK_MINLOCKS },
 177         { BER_BVNULL, 0 }
 178 };
 179
 180 /* perform periodic checkpoints */
 181 static void *
 182 bdb_checkpoint( void *ctx, void *arg )
 183 {
 184         struct re_s *rtask = arg;
 185         struct bdb_info *bdb = rtask->arg;
 186
 187         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
 188                 bdb->bi_txn_cp_min, 0 );
 189         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 190         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 191         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 192         return NULL;
 193 }
 194
 195 /* reindex entries on the fly */
 196 static void *
 197 bdb_online_index( void *ctx, void *arg )
 198 {
 199         struct re_s *rtask = arg;
 200         BackendDB *be = rtask->arg;
 201         struct bdb_info *bdb = be->be_private;
 202
 203         Connection conn = {0};
 204         OperationBuffer opbuf;
 205         Operation *op;
 206
 207         DBC *curs;
 208         DBT key, data;
 209         DB_TXN *txn;
 210         DB_LOCK lock;
 211         ID id, nid;
 212         EntryInfo *ei;
 213         int rc, getnext = 1;
 214         int i;
 215
 216         connection_fake_init( &conn, &opbuf, ctx );
 217         op = &opbuf.ob_op;
 218
 219         op->o_bd = be;
 220
 221         DBTzero( &key );
 222         DBTzero( &data );
 223
 224         id = 1;
 225         key.data = &nid;
 226         key.size = key.ulen = sizeof(ID);
 227         key.flags = DB_DBT_USERMEM;
 228
 229         data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
 230         data.dlen = data.ulen = 0;
 231
 232         while ( 1 ) {
 233                 if ( slapd_shutdown )
 234                         break;
 235
 236                 rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &txn, bdb->bi_db_opflags );
 237                 if ( rc )
 238                         break;
 239                 if ( getnext ) {
 240                         getnext = 0;
 241                         BDB_ID2DISK( id, &nid );
 242                         rc = bdb->bi_id2entry->bdi_db->cursor(
 243                                 bdb->bi_id2entry->bdi_db, txn, &curs, bdb->bi_db_opflags );
 244                         if ( rc ) {
 245                                 TXN_ABORT( txn );
 246                                 break;
 247                         }
 248                         rc = curs->c_get( curs, &key, &data, DB_SET_RANGE );
 249                         curs->c_close( curs );
 250                         if ( rc ) {
 251                                 TXN_ABORT( txn );
 252                                 if ( rc == DB_NOTFOUND )
 253                                         rc = 0;
 254                                 if ( rc == DB_LOCK_DEADLOCK ) {
 255                                         ldap_pvt_thread_yield();
 256                                         continue;
 257                                 }
 258                                 break;
 259                         }
 260                         BDB_DISK2ID( &nid, &id );
 261                 }
 262
 263                 ei = NULL;
 264                 rc = bdb_cache_find_id( op, txn, id, &ei, 0, &lock );
 265                 if ( rc ) {
 266                         TXN_ABORT( txn );
 267                         if ( rc == DB_LOCK_DEADLOCK ) {
 268                                 ldap_pvt_thread_yield();
 269                                 continue;
 270                         }
 271                         if ( rc == DB_NOTFOUND ) {
 272                                 id++;
 273                                 getnext = 1;
 274                                 continue;
 275                         }
 276                         break;
 277                 }
 278                 if ( ei->bei_e ) {
 279                         rc = bdb_index_entry( op, txn, BDB_INDEX_UPDATE_OP, ei->bei_e );
 280                         if ( rc == DB_LOCK_DEADLOCK ) {
 281                                 TXN_ABORT( txn );
 282                                 ldap_pvt_thread_yield();
 283                                 continue;
 284                         }
 285                         if ( rc == 0 ) {
 286                                 rc = TXN_COMMIT( txn, 0 );
 287                                 txn = NULL;
 288                         }
 289                         if ( rc )
 290                                 break;
 291                 }
 292                 id++;
 293                 getnext = 1;
 294         }
 295
 296         for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 297                 if ( bdb->bi_attrs[ i ]->ai_indexmask & BDB_INDEX_DELETING
 298                         || bdb->bi_attrs[ i ]->ai_newmask == 0 )
 299                 {
 300                         continue;
 301                 }
 302                 bdb->bi_attrs[ i ]->ai_indexmask = bdb->bi_attrs[ i ]->ai_newmask;
 303                 bdb->bi_attrs[ i ]->ai_newmask = 0;
 304         }
 305
 306         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 307         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 308         bdb->bi_index_task = NULL;
 309         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
 310         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 311
 312         return NULL;
 313 }
 314
 315 /* Cleanup loose ends after Modify completes */
 316 static int
 317 bdb_cf_cleanup( ConfigArgs *c )
 318 {
 319         struct bdb_info *bdb = c->be->be_private;
 320         int rc = 0;
 321
 322         if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
 323                 if ( bdb->bi_db_config ) {
 324                         int i;
 325                         FILE *f = fopen( bdb->bi_db_config_path, "w" );
 326                         if ( f ) {
 327                                 for (i=0; bdb->bi_db_config[i].bv_val; i++)
 328                                         fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
 329                                 fclose( f );
 330                         }
 331                 } else {
 332                         unlink( bdb->bi_db_config_path );
 333                 }
 334                 bdb->bi_flags ^= BDB_UPD_CONFIG;
 335         }
 336
 337         if ( bdb->bi_flags & BDB_DEL_INDEX ) {
 338                 bdb_attr_flush( bdb );
 339                 bdb->bi_flags ^= BDB_DEL_INDEX;
 340         }
 341
 342         if ( bdb->bi_flags & BDB_RE_OPEN ) {
 343                 bdb->bi_flags ^= BDB_RE_OPEN;
 344                 rc = c->be->bd_info->bi_db_close( c->be, &c->reply );
 345                 if ( rc == 0 )
 346                         rc = c->be->bd_info->bi_db_open( c->be, &c->reply );
 347                 /* If this fails, we need to restart */
 348                 if ( rc ) {
 349                         slapd_shutdown = 2;
 350                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
 351                                 "failed to reopen database, rc=%d", rc );
 352                         Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
 353                                 ": %s\n", c->cr_msg, 0, 0 );
 354                         rc = LDAP_OTHER;
 355                 }
 356         }
 357         return rc;
 358 }
 359
 360 static int
 361 bdb_cf_gen( ConfigArgs *c )
 362 {
 363         struct bdb_info *bdb = c->be->be_private;
 364         int rc;
 365
 366         if ( c->op == SLAP_CONFIG_EMIT ) {
 367                 rc = 0;
 368                 switch( c->type ) {
 369                 case BDB_MODE: {
 370                         char buf[64];
 371                         struct berval bv;
 372                         bv.bv_len = snprintf( buf, sizeof(buf), "0%o", bdb->bi_dbenv_mode );
 373                         if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) {
 374                                 bv.bv_val = buf;
 375                                 value_add_one( &c->rvalue_vals, &bv );
 376                         } else {
 377                                 rc = 1;
 378                         }
 379                         } break;
 380
 381                 case BDB_CHKPT:
 382                         if ( bdb->bi_txn_cp ) {
 383                                 char buf[64];
 384                                 struct berval bv;
 385                                 bv.bv_len = snprintf( buf, sizeof(buf), "%d %d", bdb->bi_txn_cp_kbyte,
 386                                         bdb->bi_txn_cp_min );
 387                                 if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) {
 388                                         bv.bv_val = buf;
 389                                         value_add_one( &c->rvalue_vals, &bv );
 390                                 } else {
 391                                         rc = 1;
 392                                 }
 393                         } else {
 394                                 rc = 1;
 395                         }
 396                         break;
 397
 398                 case BDB_CRYPTFILE:
 399                         if ( bdb->bi_db_crypt_file ) {
 400                                 c->value_string = ch_strdup( bdb->bi_db_crypt_file );
 401                         } else {
 402                                 rc = 1;
 403                         }
 404                         break;
 405
 406                 /* If a crypt file has been set, its contents are copied here.
 407                  * But we don't want the key to be incorporated here.
 408                  */
 409                 case BDB_CRYPTKEY:
 410                         if ( !bdb->bi_db_crypt_file && !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
 411                                 value_add_one( &c->rvalue_vals, &bdb->bi_db_crypt_key );
 412                         } else {
 413                                 rc = 1;
 414                         }
 415                         break;
 416
 417                 case BDB_DIRECTORY:
 418                         if ( bdb->bi_dbenv_home ) {
 419                                 c->value_string = ch_strdup( bdb->bi_dbenv_home );
 420                         } else {
 421                                 rc = 1;
 422                         }
 423                         break;
 424
 425                 case BDB_CONFIG:
 426                         if ( !( bdb->bi_flags & BDB_IS_OPEN )
 427                                 && !bdb->bi_db_config )
 428                         {
 429                                 char    buf[SLAP_TEXT_BUFLEN];
 430                                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 431                                 struct berval bv;
 432
 433                                 if ( f ) {
 434                                         bdb->bi_flags |= BDB_HAS_CONFIG;
 435                                         while ( fgets( buf, sizeof(buf), f )) {
 436                                                 ber_str2bv( buf, 0, 1, &bv );
 437                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\n' ) {
 438                                                         bv.bv_len--;
 439                                                         bv.bv_val[bv.bv_len] = '\0';
 440                                                 }
 441                                                 /* shouldn't need this, but ... */
 442                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\r' ) {
 443                                                         bv.bv_len--;
 444                                                         bv.bv_val[bv.bv_len] = '\0';
 445                                                 }
 446                                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 447                                         }
 448                                         fclose( f );
 449                                 }
 450                         }
 451                         if ( bdb->bi_db_config ) {
 452                                 int i;
 453                                 struct berval bv;
 454
 455                                 bv.bv_val = c->log;
 456                                 for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
 457                                         bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
 458                                                 bdb->bi_db_config[i].bv_val );
 459                                         value_add_one( &c->rvalue_vals, &bv );
 460                                 }
 461                         }
 462                         if ( !c->rvalue_vals ) rc = 1;
 463                         break;
 464
 465                 case BDB_NOSYNC:
 466                         if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
 467                                 c->value_int = 1;
 468                         break;
 469
 470                 case BDB_INDEX:
 471                         bdb_attr_index_unparse( bdb, &c->rvalue_vals );
 472                         if ( !c->rvalue_vals ) rc = 1;
 473                         break;
 474
 475                 case BDB_LOCKD:
 476                         rc = 1;
 477                         if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
 478                                 int i;
 479                                 for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
 480                                         if ( bdb->bi_lock_detect == bdb_lockd[i].mask ) {
 481                                                 value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
 482                                                 rc = 0;
 483                                                 break;
 484                                         }
 485                                 }
 486                         }
 487                         break;
 488
 489                 case BDB_SSTACK:
 490                         c->value_int = bdb->bi_search_stack_depth;
 491                         break;
 492
 493                 case BDB_PGSIZE: {
 494                                 struct bdb_db_pgsize *ps;
 495                                 char buf[SLAP_TEXT_BUFLEN];
 496                                 struct berval bv;
 497                                 int rc = 1;
 498
 499                                 bv.bv_val = buf;
 500                                 for ( ps = bdb->bi_pagesizes; ps; ps = ps->bdp_next ) {
 501                                         bv.bv_len = sprintf( buf, "%s %d", ps->bdp_name.bv_val,
 502                                                 ps->bdp_size / 1024 );
 503                                         value_add_one( &c->rvalue_vals, &bv );
 504                                         rc = 0;
 505
 506                                 }
 507                                 break;
 508                         }
 509                 }
 510                 return rc;
 511         } else if ( c->op == LDAP_MOD_DELETE ) {
 512                 rc = 0;
 513                 switch( c->type ) {
 514                 case BDB_MODE:
 515 #if 0
 516                         /* FIXME: does it make any sense to change the mode,
 517                          * if we don't exec a chmod()? */
 518                         bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
 519                         break;
 520 #endif
 521
 522                 /* single-valued no-ops */
 523                 case BDB_LOCKD:
 524                 case BDB_SSTACK:
 525                         break;
 526
 527                 case BDB_CHKPT:
 528                         if ( bdb->bi_txn_cp_task ) {
 529                                 struct re_s *re = bdb->bi_txn_cp_task;
 530                                 bdb->bi_txn_cp_task = NULL;
 531                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 532                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
 533                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
 534                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
 535                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 536                         }
 537                         bdb->bi_txn_cp = 0;
 538                         break;
 539                 case BDB_CONFIG:
 540                         if ( c->valx < 0 ) {
 541                                 ber_bvarray_free( bdb->bi_db_config );
 542                                 bdb->bi_db_config = NULL;
 543                         } else {
 544                                 int i = c->valx;
 545                                 ch_free( bdb->bi_db_config[i].bv_val );
 546                                 for (; bdb->bi_db_config[i].bv_val; i++)
 547                                         bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
 548                         }
 549                         bdb->bi_flags |= BDB_UPD_CONFIG;
 550                         c->cleanup = bdb_cf_cleanup;
 551                         break;
 552                 /* Doesn't really make sense to change these on the fly;
 553                  * the entire DB must be dumped and reloaded
 554                  */
 555                 case BDB_CRYPTFILE:
 556                         if ( bdb->bi_db_crypt_file ) {
 557                                 ch_free( bdb->bi_db_crypt_file );
 558                                 bdb->bi_db_crypt_file = NULL;
 559                         }
 560                         /* FALLTHRU */
 561                 case BDB_CRYPTKEY:
 562                         if ( !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
 563                                 ch_free( bdb->bi_db_crypt_key.bv_val );
 564                                 BER_BVZERO( &bdb->bi_db_crypt_key );
 565                         }
 566                         break;
 567                 case BDB_DIRECTORY:
 568                         bdb->bi_flags |= BDB_RE_OPEN;
 569                         bdb->bi_flags ^= BDB_HAS_CONFIG;
 570                         ch_free( bdb->bi_dbenv_home );
 571                         bdb->bi_dbenv_home = NULL;
 572                         ch_free( bdb->bi_db_config_path );
 573                         bdb->bi_db_config_path = NULL;
 574                         c->cleanup = bdb_cf_cleanup;
 575                         ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
 576                         break;
 577                 case BDB_NOSYNC:
 578                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
 579                         break;
 580                 case BDB_INDEX:
 581                         if ( c->valx == -1 ) {
 582                                 int i;
 583
 584                                 /* delete all (FIXME) */
 585                                 for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 586                                         bdb->bi_attrs[i]->ai_indexmask |= BDB_INDEX_DELETING;
 587                                 }
 588                                 bdb->bi_flags |= BDB_DEL_INDEX;
 589                                 c->cleanup = bdb_cf_cleanup;
 590
 591                         } else {
 592                                 struct berval bv, def = BER_BVC("default");
 593                                 char *ptr;
 594
 595                                 for (ptr = c->line; !isspace( (unsigned char) *ptr ); ptr++);
 596
 597                                 bv.bv_val = c->line;
 598                                 bv.bv_len = ptr - bv.bv_val;
 599                                 if ( bvmatch( &bv, &def )) {
 600                                         bdb->bi_defaultmask = 0;
 601
 602                                 } else {
 603                                         int i;
 604                                         char **attrs;
 605                                         char sep;
 606
 607                                         sep = bv.bv_val[ bv.bv_len ];
 608                                         bv.bv_val[ bv.bv_len ] = '\0';
 609                                         attrs = ldap_str2charray( bv.bv_val, "," );
 610
 611                                         for ( i = 0; attrs[ i ]; i++ ) {
 612                                                 AttributeDescription *ad = NULL;
 613                                                 const char *text;
 614                                                 AttrInfo *ai;
 615
 616                                                 slap_str2ad( attrs[ i ], &ad, &text );
 617                                                 /* if we got here... */
 618                                                 assert( ad != NULL );
 619
 620                                                 ai = bdb_attr_mask( bdb, ad );
 621                                                 /* if we got here... */
 622                                                 assert( ai != NULL );
 623
 624                                                 ai->ai_indexmask |= BDB_INDEX_DELETING;
 625                                                 bdb->bi_flags |= BDB_DEL_INDEX;
 626                                                 c->cleanup = bdb_cf_cleanup;
 627                                         }
 628
 629                                         bv.bv_val[ bv.bv_len ] = sep;
 630                                         ldap_charray_free( attrs );
 631                                 }
 632                         }
 633                         break;
 634                 /* doesn't make sense on the fly; the DB file must be
 635                  * recreated
 636                  */
 637                 case BDB_PGSIZE: {
 638                                 struct bdb_db_pgsize *ps, **prev;
 639                                 int i;
 640
 641                                 for ( i = 0, prev = &bdb->bi_pagesizes, ps = *prev; ps;
 642                                         prev = &ps->bdp_next, ps = ps->bdp_next, i++ ) {
 643                                         if ( c->valx == -1 || i == c->valx ) {
 644                                                 *prev = ps->bdp_next;
 645                                                 ch_free( ps );
 646                                                 ps = *prev;
 647                                                 if ( i == c->valx ) break;
 648                                         }
 649                                 }
 650                         }
 651                         break;
 652                 }
 653                 return rc;
 654         }
 655
 656         switch( c->type ) {
 657         case BDB_MODE:
 658                 if ( ASCII_DIGIT( c->argv[1][0] ) ) {
 659                         long mode;
 660                         char *next;
 661                         errno = 0;
 662                         mode = strtol( c->argv[1], &next, 0 );
 663                         if ( errno != 0 || next == c->argv[1] || next[0] != '\0' ) {
 664                                 fprintf( stderr, "%s: "
 665                                         "unable to parse mode=\"%s\".\n",
 666                                         c->log, c->argv[1] );
 667                                 return 1;
 668                         }
 669                         bdb->bi_dbenv_mode = mode;
 670
 671                 } else {
 672                         char *m = c->argv[1];
 673                         int who, what, mode = 0;
 674
 675                         if ( strlen( m ) != STRLENOF("-rwxrwxrwx") ) {
 676                                 return 1;
 677                         }
 678
 679                         if ( m[0] != '-' ) {
 680                                 return 1;
 681                         }
 682
 683                         m++;
 684                         for ( who = 0; who < 3; who++ ) {
 685                                 for ( what = 0; what < 3; what++, m++ ) {
 686                                         if ( m[0] == '-' ) {
 687                                                 continue;
 688                                         } else if ( m[0] != "rwx"[what] ) {
 689                                                 return 1;
 690                                         }
 691                                         mode += ((1 << (2 - what)) << 3*(2 - who));
 692                                 }
 693                         }
 694                         bdb->bi_dbenv_mode = mode;
 695                 }
 696                 break;
 697         case BDB_CHKPT: {
 698                 long    l;
 699                 bdb->bi_txn_cp = 1;
 700                 if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) {
 701                         fprintf( stderr, "%s: "
 702                                 "invalid kbyte \"%s\" in \"checkpoint\".\n",
 703                                 c->log, c->argv[1] );
 704                         return 1;
 705                 }
 706                 bdb->bi_txn_cp_kbyte = l;
 707                 if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) {
 708                         fprintf( stderr, "%s: "
 709                                 "invalid minutes \"%s\" in \"checkpoint\".\n",
 710                                 c->log, c->argv[2] );
 711                         return 1;
 712                 }
 713                 bdb->bi_txn_cp_min = l;
 714                 /* If we're in server mode and time-based checkpointing is enabled,
 715                  * submit a task to perform periodic checkpoints.
 716                  */
 717                 if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
 718                         struct re_s *re = bdb->bi_txn_cp_task;
 719                         if ( re ) {
 720                                 re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
 721                         } else {
 722                                 if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 723                                         fprintf( stderr, "%s: "
 724                                                 "\"checkpoint\" must occur after \"suffix\".\n",
 725                                                 c->log );
 726                                         return 1;
 727                                 }
 728                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 729                                 bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
 730                                         bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
 731                                         LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
 732                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 733                         }
 734                 }
 735                 } break;
 736
 737         case BDB_CONFIG: {
 738                 char *ptr = c->line;
 739                 struct berval bv;
 740
 741                 if ( c->op == SLAP_CONFIG_ADD ) {
 742                         ptr += STRLENOF("dbconfig");
 743                         while (!isspace((unsigned char)*ptr)) ptr++;
 744                         while (isspace((unsigned char)*ptr)) ptr++;
 745                 }
 746
 747                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 748                         bdb->bi_flags |= BDB_UPD_CONFIG;
 749                         c->cleanup = bdb_cf_cleanup;
 750                 } else {
 751                 /* If we're just starting up...
 752                  */
 753                         FILE *f;
 754                         /* If a DB_CONFIG file exists, or we don't know the path
 755                          * to the DB_CONFIG file, ignore these directives
 756                          */
 757                         if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
 758                                 break;
 759                         f = fopen( bdb->bi_db_config_path, "a" );
 760                         if ( f ) {
 761                                 /* FIXME: EBCDIC probably needs special handling */
 762                                 fprintf( f, "%s\n", ptr );
 763                                 fclose( f );
 764                         }
 765                 }
 766                 ber_str2bv( ptr, 0, 1, &bv );
 767                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 768                 }
 769                 break;
 770
 771         case BDB_CRYPTFILE:
 772                 rc = lutil_get_filed_password( c->value_string, &bdb->bi_db_crypt_key );
 773                 if ( rc == 0 ) {
 774                         bdb->bi_db_crypt_file = c->value_string;
 775                 }
 776                 break;
 777
 778         /* Cannot set key if file was already set */
 779         case BDB_CRYPTKEY:
 780                 if ( bdb->bi_db_crypt_file ) {
 781                         rc = 1;
 782                 } else {
 783                         bdb->bi_db_crypt_key = c->value_bv;
 784                 }
 785                 break;
 786
 787         case BDB_DIRECTORY: {
 788                 FILE *f;
 789                 char *ptr, *testpath;
 790                 int len;
 791
 792                 len = strlen( c->value_string );
 793                 testpath = ch_malloc( len + STRLENOF(LDAP_DIRSEP) + STRLENOF("DUMMY") + 1 );
 794                 ptr = lutil_strcopy( testpath, c->value_string );
 795                 *ptr++ = LDAP_DIRSEP[0];
 796                 strcpy( ptr, "DUMMY" );
 797                 f = fopen( testpath, "w" );
 798                 if ( f ) {
 799                         fclose( f );
 800                         unlink( testpath );
 801                 }
 802                 ch_free( testpath );
 803                 if ( !f ) {
 804                         snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: invalid path: %s",
 805                                 c->log, strerror( errno ));
 806                         Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 );
 807                         return -1;
 808                 }
 809
 810                 if ( bdb->bi_dbenv_home )
 811                         ch_free( bdb->bi_dbenv_home );
 812                 bdb->bi_dbenv_home = c->value_string;
 813
 814                 /* See if a DB_CONFIG file already exists here */
 815                 if ( bdb->bi_db_config_path )
 816                         ch_free( bdb->bi_db_config_path );
 817                 bdb->bi_db_config_path = ch_malloc( len +
 818                         STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
 819                 ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
 820                 *ptr++ = LDAP_DIRSEP[0];
 821                 strcpy( ptr, "DB_CONFIG" );
 822
 823                 f = fopen( bdb->bi_db_config_path, "r" );
 824                 if ( f ) {
 825                         bdb->bi_flags |= BDB_HAS_CONFIG;
 826                         fclose(f);
 827                 }
 828                 }
 829                 break;
 830
 831         case BDB_NOSYNC:
 832                 if ( c->value_int )
 833                         bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
 834                 else
 835                         bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
 836                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 837                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
 838                                 c->value_int );
 839                 }
 840                 break;
 841
 842         case BDB_INDEX:
 843                 rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
 844                         c->argc - 1, &c->argv[1], &c->reply);
 845
 846                 if( rc != LDAP_SUCCESS ) return 1;
 847                 if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
 848                         /* Start the task as soon as we finish here. Set a long
 849                          * interval (10 hours) so that it only gets scheduled once.
 850                          */
 851                         if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 852                                 fprintf( stderr, "%s: "
 853                                         "\"index\" must occur after \"suffix\".\n",
 854                                         c->log );
 855                                 return 1;
 856                         }
 857                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 858                         bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
 859                                 bdb_online_index, c->be,
 860                                 LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
 861                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 862                 }
 863                 break;
 864
 865         case BDB_LOCKD:
 866                 rc = verb_to_mask( c->argv[1], bdb_lockd );
 867                 if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
 868                         fprintf( stderr, "%s: "
 869                                 "bad policy (%s) in \"lockDetect <policy>\" line\n",
 870                                 c->log, c->argv[1] );
 871                         return 1;
 872                 }
 873                 bdb->bi_lock_detect = rc;
 874                 break;
 875
 876         case BDB_SSTACK:
 877                 if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
 878                         fprintf( stderr,
 879                 "%s: depth %d too small, using %d\n",
 880                         c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
 881                         c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
 882                 }
 883                 bdb->bi_search_stack_depth = c->value_int;
 884                 break;
 885
 886         case BDB_PGSIZE: {
 887                 struct bdb_db_pgsize *ps, **prev;
 888                 int i, s;
 889
 890                 s = atoi(c->argv[2]);
 891                 if ( s < 1 || s > 64 ) {
 892                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
 893                                 "%s: size must be > 0 and <= 64: %d",
 894                                 c->log, s );
 895                         Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 );
 896                         return -1;
 897                 }
 898                 i = strlen(c->argv[1]);
 899                 ps = ch_malloc( sizeof(struct bdb_db_pgsize) + i + 1 );
 900                 ps->bdp_next = NULL;
 901                 ps->bdp_name.bv_len = i;
 902                 ps->bdp_name.bv_val = (char *)(ps+1);
 903                 strcpy( ps->bdp_name.bv_val, c->argv[1] );
 904                 ps->bdp_size = s * 1024;
 905                 for ( prev = &bdb->bi_pagesizes; *prev; prev = &(*prev)->bdp_next )
 906                         ;
 907                 *prev = ps;
 908                 }
 909                 break;
 910         }
 911         return 0;
 912 }
 913
 914 int bdb_back_init_cf( BackendInfo *bi )
 915 {
 916         int rc;
 917         bi->bi_cf_ocs = bdbocs;
 918
 919         rc = config_register_schema( bdbcfg, bdbocs );
 920         if ( rc ) return rc;
 921         return 0;
 922 }