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 2000-2012 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         BDB_CHECKSUM
  56 };
  57
  58 static ConfigTable bdbcfg[] = {
  59         { "directory", "dir", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_DIRECTORY,
  60                 bdb_cf_gen, "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
  61                         "DESC 'Directory for database content' "
  62                         "EQUALITY caseIgnoreMatch "
  63                         "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
  64         { "cachefree", "size", 2, 2, 0, ARG_ULONG|ARG_OFFSET,
  65                 (void *)offsetof(struct bdb_info, bi_cache.c_minfree),
  66                 "( OLcfgDbAt:1.11 NAME 'olcDbCacheFree' "
  67                         "DESC 'Number of extra entries to free when max is reached' "
  68                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  69         { "cachesize", "size", 2, 2, 0, ARG_ULONG|ARG_OFFSET,
  70                 (void *)offsetof(struct bdb_info, bi_cache.c_maxsize),
  71                 "( OLcfgDbAt:1.1 NAME 'olcDbCacheSize' "
  72                         "DESC 'Entry cache size in entries' "
  73                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
  74         { "checkpoint", "kbyte> <min", 3, 3, 0, ARG_MAGIC|BDB_CHKPT,
  75                 bdb_cf_gen, "( OLcfgDbAt:1.2 NAME 'olcDbCheckpoint' "
  76                         "DESC 'Database checkpoint interval in kbytes and minutes' "
  77                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
  78         { "checksum", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_CHECKSUM,
  79                 bdb_cf_gen, "( OLcfgDbAt:1.16 NAME 'olcDbChecksum' "
  80                         "DESC 'Enable database checksum validation' "
  81                         "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  82         { "cryptfile", "file", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_CRYPTFILE,
  83                 bdb_cf_gen, "( OLcfgDbAt:1.13 NAME 'olcDbCryptFile' "
  84                         "DESC 'Pathname of file containing the DB encryption key' "
  85                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
  86         { "cryptkey", "key", 2, 2, 0, ARG_BERVAL|ARG_MAGIC|BDB_CRYPTKEY,
  87                 bdb_cf_gen, "( OLcfgDbAt:1.14 NAME 'olcDbCryptKey' "
  88                         "DESC 'DB encryption key' "
  89                         "SYNTAX OMsOctetString SINGLE-VALUE )",NULL, NULL },
  90         { "dbconfig", "DB_CONFIG setting", 1, 0, 0, ARG_MAGIC|BDB_CONFIG,
  91                 bdb_cf_gen, "( OLcfgDbAt:1.3 NAME 'olcDbConfig' "
  92                         "DESC 'BerkeleyDB DB_CONFIG configuration directives' "
  93                         "SYNTAX OMsIA5String X-ORDERED 'VALUES' )", NULL, NULL },
  94         { "dbnosync", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_NOSYNC,
  95                 bdb_cf_gen, "( OLcfgDbAt:1.4 NAME 'olcDbNoSync' "
  96                         "DESC 'Disable synchronous database writes' "
  97                         "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
  98         { "dbpagesize", "db> <size", 3, 3, 0, ARG_MAGIC|BDB_PGSIZE,
  99                 bdb_cf_gen, "( OLcfgDbAt:1.15 NAME 'olcDbPageSize' "
 100                         "DESC 'Page size of specified DB, in Kbytes' "
 101                         "EQUALITY caseExactMatch "
 102                         "SYNTAX OMsDirectoryString )", NULL, NULL },
 103         { "dirtyread", NULL, 1, 2, 0,
 104 #ifdef SLAP_BDB_ALLOW_DIRTY_READ
 105                 ARG_ON_OFF|ARG_MAGIC|BDB_DIRTYR, bdb_cf_gen,
 106 #else
 107                 ARG_IGNORED, NULL,
 108 #endif
 109                 "( OLcfgDbAt:1.5 NAME 'olcDbDirtyRead' "
 110                 "DESC 'Allow reads of uncommitted data' "
 111                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
 112         { "dncachesize", "size", 2, 2, 0, ARG_ULONG|ARG_OFFSET,
 113                 (void *)offsetof(struct bdb_info, bi_cache.c_eimax),
 114                 "( OLcfgDbAt:1.12 NAME 'olcDbDNcacheSize' "
 115                         "DESC 'DN cache size' "
 116                         "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 117         { "idlcachesize", "size", 2, 2, 0, ARG_ULONG|ARG_OFFSET,
 118                 (void *)offsetof(struct bdb_info, bi_idl_cache_max_size),
 119                 "( OLcfgDbAt:1.6 NAME 'olcDbIDLcacheSize' "
 120                 "DESC 'IDL cache size in IDLs' "
 121                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 122         { "index", "attr> <[pres,eq,approx,sub]", 2, 3, 0, ARG_MAGIC|BDB_INDEX,
 123                 bdb_cf_gen, "( OLcfgDbAt:0.2 NAME 'olcDbIndex' "
 124                 "DESC 'Attribute index parameters' "
 125                 "EQUALITY caseIgnoreMatch "
 126                 "SYNTAX OMsDirectoryString )", NULL, NULL },
 127         { "linearindex", NULL, 1, 2, 0, ARG_ON_OFF|ARG_OFFSET,
 128                 (void *)offsetof(struct bdb_info, bi_linear_index),
 129                 "( OLcfgDbAt:1.7 NAME 'olcDbLinearIndex' "
 130                 "DESC 'Index attributes one at a time' "
 131                 "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
 132         { "lockdetect", "policy", 2, 2, 0, ARG_MAGIC|BDB_LOCKD,
 133                 bdb_cf_gen, "( OLcfgDbAt:1.8 NAME 'olcDbLockDetect' "
 134                 "DESC 'Deadlock detection algorithm' "
 135                 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 136         { "mode", "mode", 2, 2, 0, ARG_MAGIC|BDB_MODE,
 137                 bdb_cf_gen, "( OLcfgDbAt:0.3 NAME 'olcDbMode' "
 138                 "DESC 'Unix permissions of database files' "
 139                 "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 140         { "searchstack", "depth", 2, 2, 0, ARG_INT|ARG_MAGIC|BDB_SSTACK,
 141                 bdb_cf_gen, "( OLcfgDbAt:1.9 NAME 'olcDbSearchStack' "
 142                 "DESC 'Depth of search stack in IDLs' "
 143                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 144         { "shm_key", "key", 2, 2, 0, ARG_LONG|ARG_OFFSET,
 145                 (void *)offsetof(struct bdb_info, bi_shm_key),
 146                 "( OLcfgDbAt:1.10 NAME 'olcDbShmKey' "
 147                 "DESC 'Key for shared memory region' "
 148                 "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
 149         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 150                 NULL, NULL, NULL, NULL }
 151 };
 152
 153 static ConfigOCs bdbocs[] = {
 154         {
 155 #ifdef BDB_HIER
 156                 "( OLcfgDbOc:1.2 "
 157                 "NAME 'olcHdbConfig' "
 158                 "DESC 'HDB backend configuration' "
 159 #else
 160                 "( OLcfgDbOc:1.1 "
 161                 "NAME 'olcBdbConfig' "
 162                 "DESC 'BDB backend configuration' "
 163 #endif
 164                 "SUP olcDatabaseConfig "
 165                 "MUST olcDbDirectory "
 166                 "MAY ( olcDbCacheSize $ olcDbCheckpoint $ olcDbConfig $ "
 167                 "olcDbCryptFile $ olcDbCryptKey $ "
 168                 "olcDbNoSync $ olcDbDirtyRead $ olcDbIDLcacheSize $ "
 169                 "olcDbIndex $ olcDbLinearIndex $ olcDbLockDetect $ "
 170                 "olcDbMode $ olcDbSearchStack $ olcDbShmKey $ "
 171                 "olcDbCacheFree $ olcDbDNcacheSize $ olcDbPageSize ) )",
 172                         Cft_Database, bdbcfg },
 173         { NULL, 0, NULL }
 174 };
 175
 176 static slap_verbmasks bdb_lockd[] = {
 177         { BER_BVC("default"), DB_LOCK_DEFAULT },
 178         { BER_BVC("oldest"), DB_LOCK_OLDEST },
 179         { BER_BVC("random"), DB_LOCK_RANDOM },
 180         { BER_BVC("youngest"), DB_LOCK_YOUNGEST },
 181         { BER_BVC("fewest"), DB_LOCK_MINLOCKS },
 182         { BER_BVNULL, 0 }
 183 };
 184
 185 /* perform periodic checkpoints */
 186 static void *
 187 bdb_checkpoint( void *ctx, void *arg )
 188 {
 189         struct re_s *rtask = arg;
 190         struct bdb_info *bdb = rtask->arg;
 191
 192         TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
 193                 bdb->bi_txn_cp_min, 0 );
 194         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 195         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 196         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 197         return NULL;
 198 }
 199
 200 /* reindex entries on the fly */
 201 static void *
 202 bdb_online_index( void *ctx, void *arg )
 203 {
 204         struct re_s *rtask = arg;
 205         BackendDB *be = rtask->arg;
 206         struct bdb_info *bdb = be->be_private;
 207
 208         Connection conn = {0};
 209         OperationBuffer opbuf;
 210         Operation *op;
 211
 212         DBC *curs;
 213         DBT key, data;
 214         DB_TXN *txn;
 215         DB_LOCK lock;
 216         ID id, nid;
 217         EntryInfo *ei;
 218         int rc, getnext = 1;
 219         int i;
 220
 221         connection_fake_init( &conn, &opbuf, ctx );
 222         op = &opbuf.ob_op;
 223
 224         op->o_bd = be;
 225
 226         DBTzero( &key );
 227         DBTzero( &data );
 228
 229         id = 1;
 230         key.data = &nid;
 231         key.size = key.ulen = sizeof(ID);
 232         key.flags = DB_DBT_USERMEM;
 233
 234         data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
 235         data.dlen = data.ulen = 0;
 236
 237         while ( 1 ) {
 238                 if ( slapd_shutdown )
 239                         break;
 240
 241                 rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &txn, bdb->bi_db_opflags );
 242                 if ( rc )
 243                         break;
 244                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_online_index) ": txn id: %u\n",
 245                         txn->id(txn), 0, 0 );
 246                 if ( getnext ) {
 247                         getnext = 0;
 248                         BDB_ID2DISK( id, &nid );
 249                         rc = bdb->bi_id2entry->bdi_db->cursor(
 250                                 bdb->bi_id2entry->bdi_db, txn, &curs, bdb->bi_db_opflags );
 251                         if ( rc ) {
 252                                 TXN_ABORT( txn );
 253                                 break;
 254                         }
 255                         rc = curs->c_get( curs, &key, &data, DB_SET_RANGE );
 256                         curs->c_close( curs );
 257                         if ( rc ) {
 258                                 TXN_ABORT( txn );
 259                                 if ( rc == DB_NOTFOUND )
 260                                         rc = 0;
 261                                 if ( rc == DB_LOCK_DEADLOCK ) {
 262                                         ldap_pvt_thread_yield();
 263                                         continue;
 264                                 }
 265                                 break;
 266                         }
 267                         BDB_DISK2ID( &nid, &id );
 268                 }
 269
 270                 ei = NULL;
 271                 rc = bdb_cache_find_id( op, txn, id, &ei, 0, &lock );
 272                 if ( rc ) {
 273                         TXN_ABORT( txn );
 274                         if ( rc == DB_LOCK_DEADLOCK ) {
 275                                 ldap_pvt_thread_yield();
 276                                 continue;
 277                         }
 278                         if ( rc == DB_NOTFOUND ) {
 279                                 id++;
 280                                 getnext = 1;
 281                                 continue;
 282                         }
 283                         break;
 284                 }
 285                 if ( ei->bei_e ) {
 286                         rc = bdb_index_entry( op, txn, BDB_INDEX_UPDATE_OP, ei->bei_e );
 287                         if ( rc == DB_LOCK_DEADLOCK ) {
 288                                 TXN_ABORT( txn );
 289                                 ldap_pvt_thread_yield();
 290                                 continue;
 291                         }
 292                         if ( rc == 0 ) {
 293                                 rc = TXN_COMMIT( txn, 0 );
 294                                 txn = NULL;
 295                         }
 296                         if ( rc )
 297                                 break;
 298                 }
 299                 id++;
 300                 getnext = 1;
 301         }
 302
 303         for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 304                 if ( bdb->bi_attrs[ i ]->ai_indexmask & BDB_INDEX_DELETING
 305                         || bdb->bi_attrs[ i ]->ai_newmask == 0 )
 306                 {
 307                         continue;
 308                 }
 309                 bdb->bi_attrs[ i ]->ai_indexmask = bdb->bi_attrs[ i ]->ai_newmask;
 310                 bdb->bi_attrs[ i ]->ai_newmask = 0;
 311         }
 312
 313         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 314         ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 315         bdb->bi_index_task = NULL;
 316         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
 317         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 318
 319         return NULL;
 320 }
 321
 322 /* Cleanup loose ends after Modify completes */
 323 static int
 324 bdb_cf_cleanup( ConfigArgs *c )
 325 {
 326         struct bdb_info *bdb = c->be->be_private;
 327         int rc = 0;
 328
 329         if ( bdb->bi_flags & BDB_DEL_INDEX ) {
 330                 bdb_attr_flush( bdb );
 331                 bdb->bi_flags ^= BDB_DEL_INDEX;
 332         }
 333
 334         if ( bdb->bi_flags & BDB_RE_OPEN ) {
 335                 bdb->bi_flags ^= BDB_RE_OPEN;
 336                 rc = c->be->bd_info->bi_db_close( c->be, &c->reply );
 337                 if ( rc == 0 ) {
 338                         if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
 339                                 if ( bdb->bi_db_config ) {
 340                                         int i;
 341                                         FILE *f = fopen( bdb->bi_db_config_path, "w" );
 342                                         if ( f ) {
 343                                                 for (i=0; bdb->bi_db_config[i].bv_val; i++)
 344                                                         fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
 345                                                 fclose( f );
 346                                         }
 347                                 } else {
 348                                         unlink( bdb->bi_db_config_path );
 349                                 }
 350                                 bdb->bi_flags ^= BDB_UPD_CONFIG;
 351                         }
 352                         rc = c->be->bd_info->bi_db_open( c->be, &c->reply );
 353                 }
 354                 /* If this fails, we need to restart */
 355                 if ( rc ) {
 356                         slapd_shutdown = 2;
 357                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
 358                                 "failed to reopen database, rc=%d", rc );
 359                         Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
 360                                 ": %s\n", c->cr_msg, 0, 0 );
 361                         rc = LDAP_OTHER;
 362                 }
 363         }
 364         return rc;
 365 }
 366
 367 static int
 368 bdb_cf_gen( ConfigArgs *c )
 369 {
 370         struct bdb_info *bdb = c->be->be_private;
 371         int rc;
 372
 373         if ( c->op == SLAP_CONFIG_EMIT ) {
 374                 rc = 0;
 375                 switch( c->type ) {
 376                 case BDB_MODE: {
 377                         char buf[64];
 378                         struct berval bv;
 379                         bv.bv_len = snprintf( buf, sizeof(buf), "0%o", bdb->bi_dbenv_mode );
 380                         if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) {
 381                                 bv.bv_val = buf;
 382                                 value_add_one( &c->rvalue_vals, &bv );
 383                         } else {
 384                                 rc = 1;
 385                         }
 386                         } break;
 387
 388                 case BDB_CHKPT:
 389                         if ( bdb->bi_txn_cp ) {
 390                                 char buf[64];
 391                                 struct berval bv;
 392                                 bv.bv_len = snprintf( buf, sizeof(buf), "%ld %ld",
 393                                         (long) bdb->bi_txn_cp_kbyte, (long) bdb->bi_txn_cp_min );
 394                                 if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) {
 395                                         bv.bv_val = buf;
 396                                         value_add_one( &c->rvalue_vals, &bv );
 397                                 } else {
 398                                         rc = 1;
 399                                 }
 400                         } else {
 401                                 rc = 1;
 402                         }
 403                         break;
 404
 405                 case BDB_CRYPTFILE:
 406                         if ( bdb->bi_db_crypt_file ) {
 407                                 c->value_string = ch_strdup( bdb->bi_db_crypt_file );
 408                         } else {
 409                                 rc = 1;
 410                         }
 411                         break;
 412
 413                 /* If a crypt file has been set, its contents are copied here.
 414                  * But we don't want the key to be incorporated here.
 415                  */
 416                 case BDB_CRYPTKEY:
 417                         if ( !bdb->bi_db_crypt_file && !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
 418                                 value_add_one( &c->rvalue_vals, &bdb->bi_db_crypt_key );
 419                         } else {
 420                                 rc = 1;
 421                         }
 422                         break;
 423
 424                 case BDB_DIRECTORY:
 425                         if ( bdb->bi_dbenv_home ) {
 426                                 c->value_string = ch_strdup( bdb->bi_dbenv_home );
 427                         } else {
 428                                 rc = 1;
 429                         }
 430                         break;
 431
 432                 case BDB_CONFIG:
 433                         if ( !( bdb->bi_flags & BDB_IS_OPEN )
 434                                 && !bdb->bi_db_config )
 435                         {
 436                                 char    buf[SLAP_TEXT_BUFLEN];
 437                                 FILE *f = fopen( bdb->bi_db_config_path, "r" );
 438                                 struct berval bv;
 439
 440                                 if ( f ) {
 441                                         bdb->bi_flags |= BDB_HAS_CONFIG;
 442                                         while ( fgets( buf, sizeof(buf), f )) {
 443                                                 ber_str2bv( buf, 0, 1, &bv );
 444                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\n' ) {
 445                                                         bv.bv_len--;
 446                                                         bv.bv_val[bv.bv_len] = '\0';
 447                                                 }
 448                                                 /* shouldn't need this, but ... */
 449                                                 if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\r' ) {
 450                                                         bv.bv_len--;
 451                                                         bv.bv_val[bv.bv_len] = '\0';
 452                                                 }
 453                                                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 454                                         }
 455                                         fclose( f );
 456                                 }
 457                         }
 458                         if ( bdb->bi_db_config ) {
 459                                 int i;
 460                                 struct berval bv;
 461
 462                                 bv.bv_val = c->log;
 463                                 for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
 464                                         bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
 465                                                 bdb->bi_db_config[i].bv_val );
 466                                         value_add_one( &c->rvalue_vals, &bv );
 467                                 }
 468                         }
 469                         if ( !c->rvalue_vals ) rc = 1;
 470                         break;
 471
 472                 case BDB_NOSYNC:
 473                         if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
 474                                 c->value_int = 1;
 475                         break;
 476
 477                 case BDB_CHECKSUM:
 478                         if ( bdb->bi_flags & BDB_CHKSUM )
 479                                 c->value_int = 1;
 480                         break;
 481
 482                 case BDB_INDEX:
 483                         bdb_attr_index_unparse( bdb, &c->rvalue_vals );
 484                         if ( !c->rvalue_vals ) rc = 1;
 485                         break;
 486
 487                 case BDB_LOCKD:
 488                         rc = 1;
 489                         if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
 490                                 int i;
 491                                 for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
 492                                         if ( bdb->bi_lock_detect == (u_int32_t)bdb_lockd[i].mask ) {
 493                                                 value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
 494                                                 rc = 0;
 495                                                 break;
 496                                         }
 497                                 }
 498                         }
 499                         break;
 500
 501                 case BDB_SSTACK:
 502                         c->value_int = bdb->bi_search_stack_depth;
 503                         break;
 504
 505                 case BDB_PGSIZE: {
 506                                 struct bdb_db_pgsize *ps;
 507                                 char buf[SLAP_TEXT_BUFLEN];
 508                                 struct berval bv;
 509                                 int rc = 1;
 510
 511                                 bv.bv_val = buf;
 512                                 for ( ps = bdb->bi_pagesizes; ps; ps = ps->bdp_next ) {
 513                                         bv.bv_len = sprintf( buf, "%s %d", ps->bdp_name.bv_val,
 514                                                 ps->bdp_size / 1024 );
 515                                         value_add_one( &c->rvalue_vals, &bv );
 516                                         rc = 0;
 517
 518                                 }
 519                                 break;
 520                         }
 521                 }
 522                 return rc;
 523         } else if ( c->op == LDAP_MOD_DELETE ) {
 524                 rc = 0;
 525                 switch( c->type ) {
 526                 case BDB_MODE:
 527 #if 0
 528                         /* FIXME: does it make any sense to change the mode,
 529                          * if we don't exec a chmod()? */
 530                         bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
 531                         break;
 532 #endif
 533
 534                 /* single-valued no-ops */
 535                 case BDB_LOCKD:
 536                 case BDB_SSTACK:
 537                         break;
 538
 539                 case BDB_CHKPT:
 540                         if ( bdb->bi_txn_cp_task ) {
 541                                 struct re_s *re = bdb->bi_txn_cp_task;
 542                                 bdb->bi_txn_cp_task = NULL;
 543                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 544                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
 545                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
 546                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
 547                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 548                         }
 549                         bdb->bi_txn_cp = 0;
 550                         break;
 551                 case BDB_CONFIG:
 552                         if ( c->valx < 0 ) {
 553                                 ber_bvarray_free( bdb->bi_db_config );
 554                                 bdb->bi_db_config = NULL;
 555                         } else {
 556                                 int i = c->valx;
 557                                 ch_free( bdb->bi_db_config[i].bv_val );
 558                                 for (; bdb->bi_db_config[i].bv_val; i++)
 559                                         bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
 560                         }
 561                         bdb->bi_flags |= BDB_UPD_CONFIG|BDB_RE_OPEN;
 562                         c->cleanup = bdb_cf_cleanup;
 563                         break;
 564                 /* Doesn't really make sense to change these on the fly;
 565                  * the entire DB must be dumped and reloaded
 566                  */
 567                 case BDB_CRYPTFILE:
 568                         if ( bdb->bi_db_crypt_file ) {
 569                                 ch_free( bdb->bi_db_crypt_file );
 570                                 bdb->bi_db_crypt_file = NULL;
 571                         }
 572                         /* FALLTHRU */
 573                 case BDB_CRYPTKEY:
 574                         if ( !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
 575                                 ch_free( bdb->bi_db_crypt_key.bv_val );
 576                                 BER_BVZERO( &bdb->bi_db_crypt_key );
 577                         }
 578                         break;
 579                 case BDB_DIRECTORY:
 580                         bdb->bi_flags |= BDB_RE_OPEN;
 581                         bdb->bi_flags ^= BDB_HAS_CONFIG;
 582                         ch_free( bdb->bi_dbenv_home );
 583                         bdb->bi_dbenv_home = NULL;
 584                         ch_free( bdb->bi_db_config_path );
 585                         bdb->bi_db_config_path = NULL;
 586                         c->cleanup = bdb_cf_cleanup;
 587                         ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
 588                         break;
 589                 case BDB_NOSYNC:
 590                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
 591                         break;
 592                 case BDB_CHECKSUM:
 593                         bdb->bi_flags &= ~BDB_CHKSUM;
 594                         break;
 595                 case BDB_INDEX:
 596                         if ( c->valx == -1 ) {
 597                                 int i;
 598
 599                                 /* delete all (FIXME) */
 600                                 for ( i = 0; i < bdb->bi_nattrs; i++ ) {
 601                                         bdb->bi_attrs[i]->ai_indexmask |= BDB_INDEX_DELETING;
 602                                 }
 603                                 bdb->bi_flags |= BDB_DEL_INDEX;
 604                                 c->cleanup = bdb_cf_cleanup;
 605
 606                         } else {
 607                                 struct berval bv, def = BER_BVC("default");
 608                                 char *ptr;
 609
 610                                 for (ptr = c->line; !isspace( (unsigned char) *ptr ); ptr++);
 611
 612                                 bv.bv_val = c->line;
 613                                 bv.bv_len = ptr - bv.bv_val;
 614                                 if ( bvmatch( &bv, &def )) {
 615                                         bdb->bi_defaultmask = 0;
 616
 617                                 } else {
 618                                         int i;
 619                                         char **attrs;
 620                                         char sep;
 621
 622                                         sep = bv.bv_val[ bv.bv_len ];
 623                                         bv.bv_val[ bv.bv_len ] = '\0';
 624                                         attrs = ldap_str2charray( bv.bv_val, "," );
 625
 626                                         for ( i = 0; attrs[ i ]; i++ ) {
 627                                                 AttributeDescription *ad = NULL;
 628                                                 const char *text;
 629                                                 AttrInfo *ai;
 630
 631                                                 slap_str2ad( attrs[ i ], &ad, &text );
 632                                                 /* if we got here... */
 633                                                 assert( ad != NULL );
 634
 635                                                 ai = bdb_attr_mask( bdb, ad );
 636                                                 /* if we got here... */
 637                                                 assert( ai != NULL );
 638
 639                                                 ai->ai_indexmask |= BDB_INDEX_DELETING;
 640                                                 bdb->bi_flags |= BDB_DEL_INDEX;
 641                                                 c->cleanup = bdb_cf_cleanup;
 642                                         }
 643
 644                                         bv.bv_val[ bv.bv_len ] = sep;
 645                                         ldap_charray_free( attrs );
 646                                 }
 647                         }
 648                         break;
 649                 /* doesn't make sense on the fly; the DB file must be
 650                  * recreated
 651                  */
 652                 case BDB_PGSIZE: {
 653                                 struct bdb_db_pgsize *ps, **prev;
 654                                 int i;
 655
 656                                 for ( i = 0, prev = &bdb->bi_pagesizes, ps = *prev; ps;
 657                                         prev = &ps->bdp_next, ps = ps->bdp_next, i++ ) {
 658                                         if ( c->valx == -1 || i == c->valx ) {
 659                                                 *prev = ps->bdp_next;
 660                                                 ch_free( ps );
 661                                                 ps = *prev;
 662                                                 if ( i == c->valx ) break;
 663                                         }
 664                                 }
 665                         }
 666                         break;
 667                 }
 668                 return rc;
 669         }
 670
 671         switch( c->type ) {
 672         case BDB_MODE:
 673                 if ( ASCII_DIGIT( c->argv[1][0] ) ) {
 674                         long mode;
 675                         char *next;
 676                         errno = 0;
 677                         mode = strtol( c->argv[1], &next, 0 );
 678                         if ( errno != 0 || next == c->argv[1] || next[0] != '\0' ) {
 679                                 fprintf( stderr, "%s: "
 680                                         "unable to parse mode=\"%s\".\n",
 681                                         c->log, c->argv[1] );
 682                                 return 1;
 683                         }
 684                         bdb->bi_dbenv_mode = mode;
 685
 686                 } else {
 687                         char *m = c->argv[1];
 688                         int who, what, mode = 0;
 689
 690                         if ( strlen( m ) != STRLENOF("-rwxrwxrwx") ) {
 691                                 return 1;
 692                         }
 693
 694                         if ( m[0] != '-' ) {
 695                                 return 1;
 696                         }
 697
 698                         m++;
 699                         for ( who = 0; who < 3; who++ ) {
 700                                 for ( what = 0; what < 3; what++, m++ ) {
 701                                         if ( m[0] == '-' ) {
 702                                                 continue;
 703                                         } else if ( m[0] != "rwx"[what] ) {
 704                                                 return 1;
 705                                         }
 706                                         mode += ((1 << (2 - what)) << 3*(2 - who));
 707                                 }
 708                         }
 709                         bdb->bi_dbenv_mode = mode;
 710                 }
 711                 break;
 712         case BDB_CHKPT: {
 713                 long    l;
 714                 bdb->bi_txn_cp = 1;
 715                 if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) {
 716                         fprintf( stderr, "%s: "
 717                                 "invalid kbyte \"%s\" in \"checkpoint\".\n",
 718                                 c->log, c->argv[1] );
 719                         return 1;
 720                 }
 721                 bdb->bi_txn_cp_kbyte = l;
 722                 if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) {
 723                         fprintf( stderr, "%s: "
 724                                 "invalid minutes \"%s\" in \"checkpoint\".\n",
 725                                 c->log, c->argv[2] );
 726                         return 1;
 727                 }
 728                 bdb->bi_txn_cp_min = l;
 729                 /* If we're in server mode and time-based checkpointing is enabled,
 730                  * submit a task to perform periodic checkpoints.
 731                  */
 732                 if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
 733                         struct re_s *re = bdb->bi_txn_cp_task;
 734                         if ( re ) {
 735                                 re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
 736                         } else {
 737                                 if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 738                                         fprintf( stderr, "%s: "
 739                                                 "\"checkpoint\" must occur after \"suffix\".\n",
 740                                                 c->log );
 741                                         return 1;
 742                                 }
 743                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 744                                 bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
 745                                         bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
 746                                         LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
 747                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 748                         }
 749                 }
 750                 } break;
 751
 752         case BDB_CONFIG: {
 753                 char *ptr = c->line;
 754                 struct berval bv;
 755
 756                 if ( c->op == SLAP_CONFIG_ADD ) {
 757                         ptr += STRLENOF("dbconfig");
 758                         while (!isspace((unsigned char)*ptr)) ptr++;
 759                         while (isspace((unsigned char)*ptr)) ptr++;
 760                 }
 761
 762                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 763                         bdb->bi_flags |= BDB_UPD_CONFIG|BDB_RE_OPEN;
 764                         c->cleanup = bdb_cf_cleanup;
 765                 } else {
 766                 /* If we're just starting up...
 767                  */
 768                         FILE *f;
 769                         /* If a DB_CONFIG file exists, or we don't know the path
 770                          * to the DB_CONFIG file, ignore these directives
 771                          */
 772                         if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
 773                                 break;
 774                         f = fopen( bdb->bi_db_config_path, "a" );
 775                         if ( f ) {
 776                                 /* FIXME: EBCDIC probably needs special handling */
 777                                 fprintf( f, "%s\n", ptr );
 778                                 fclose( f );
 779                         }
 780                 }
 781                 ber_str2bv( ptr, 0, 1, &bv );
 782                 ber_bvarray_add( &bdb->bi_db_config, &bv );
 783                 }
 784                 break;
 785
 786         case BDB_CRYPTFILE:
 787                 rc = lutil_get_filed_password( c->value_string, &bdb->bi_db_crypt_key );
 788                 if ( rc == 0 ) {
 789                         bdb->bi_db_crypt_file = c->value_string;
 790                 }
 791                 break;
 792
 793         /* Cannot set key if file was already set */
 794         case BDB_CRYPTKEY:
 795                 if ( bdb->bi_db_crypt_file ) {
 796                         rc = 1;
 797                 } else {
 798                         bdb->bi_db_crypt_key = c->value_bv;
 799                 }
 800                 break;
 801
 802         case BDB_DIRECTORY: {
 803                 FILE *f;
 804                 char *ptr, *testpath;
 805                 int len;
 806
 807                 len = strlen( c->value_string );
 808                 testpath = ch_malloc( len + STRLENOF(LDAP_DIRSEP) + STRLENOF("DUMMY") + 1 );
 809                 ptr = lutil_strcopy( testpath, c->value_string );
 810                 *ptr++ = LDAP_DIRSEP[0];
 811                 strcpy( ptr, "DUMMY" );
 812                 f = fopen( testpath, "w" );
 813                 if ( f ) {
 814                         fclose( f );
 815                         unlink( testpath );
 816                 }
 817                 ch_free( testpath );
 818                 if ( !f ) {
 819                         snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: invalid path: %s",
 820                                 c->log, strerror( errno ));
 821                         Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 );
 822                         return -1;
 823                 }
 824
 825                 if ( bdb->bi_dbenv_home )
 826                         ch_free( bdb->bi_dbenv_home );
 827                 bdb->bi_dbenv_home = c->value_string;
 828
 829                 /* See if a DB_CONFIG file already exists here */
 830                 if ( bdb->bi_db_config_path )
 831                         ch_free( bdb->bi_db_config_path );
 832                 bdb->bi_db_config_path = ch_malloc( len +
 833                         STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
 834                 ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
 835                 *ptr++ = LDAP_DIRSEP[0];
 836                 strcpy( ptr, "DB_CONFIG" );
 837
 838                 f = fopen( bdb->bi_db_config_path, "r" );
 839                 if ( f ) {
 840                         bdb->bi_flags |= BDB_HAS_CONFIG;
 841                         fclose(f);
 842                 }
 843                 }
 844                 break;
 845
 846         case BDB_NOSYNC:
 847                 if ( c->value_int )
 848                         bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
 849                 else
 850                         bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
 851                 if ( bdb->bi_flags & BDB_IS_OPEN ) {
 852                         bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
 853                                 c->value_int );
 854                 }
 855                 break;
 856
 857         case BDB_CHECKSUM:
 858                 if ( c->value_int )
 859                         bdb->bi_flags |= BDB_CHKSUM;
 860                 else
 861                         bdb->bi_flags &= ~BDB_CHKSUM;
 862                 break;
 863
 864         case BDB_INDEX:
 865                 rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
 866                         c->argc - 1, &c->argv[1], &c->reply);
 867
 868                 if( rc != LDAP_SUCCESS ) return 1;
 869                 if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
 870                         /* Start the task as soon as we finish here. Set a long
 871                          * interval (10 hours) so that it only gets scheduled once.
 872                          */
 873                         if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
 874                                 fprintf( stderr, "%s: "
 875                                         "\"index\" must occur after \"suffix\".\n",
 876                                         c->log );
 877                                 return 1;
 878                         }
 879                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 880                         bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
 881                                 bdb_online_index, c->be,
 882                                 LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
 883                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 884                 }
 885                 break;
 886
 887         case BDB_LOCKD:
 888                 rc = verb_to_mask( c->argv[1], bdb_lockd );
 889                 if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
 890                         fprintf( stderr, "%s: "
 891                                 "bad policy (%s) in \"lockDetect <policy>\" line\n",
 892                                 c->log, c->argv[1] );
 893                         return 1;
 894                 }
 895                 bdb->bi_lock_detect = (u_int32_t)rc;
 896                 break;
 897
 898         case BDB_SSTACK:
 899                 if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
 900                         fprintf( stderr,
 901                 "%s: depth %d too small, using %d\n",
 902                         c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
 903                         c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
 904                 }
 905                 bdb->bi_search_stack_depth = c->value_int;
 906                 break;
 907
 908         case BDB_PGSIZE: {
 909                 struct bdb_db_pgsize *ps, **prev;
 910                 int i, s;
 911
 912                 s = atoi(c->argv[2]);
 913                 if ( s < 1 || s > 64 ) {
 914                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
 915                                 "%s: size must be > 0 and <= 64: %d",
 916                                 c->log, s );
 917                         Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 );
 918                         return -1;
 919                 }
 920                 i = strlen(c->argv[1]);
 921                 ps = ch_malloc( sizeof(struct bdb_db_pgsize) + i + 1 );
 922                 ps->bdp_next = NULL;
 923                 ps->bdp_name.bv_len = i;
 924                 ps->bdp_name.bv_val = (char *)(ps+1);
 925                 strcpy( ps->bdp_name.bv_val, c->argv[1] );
 926                 ps->bdp_size = s * 1024;
 927                 for ( prev = &bdb->bi_pagesizes; *prev; prev = &(*prev)->bdp_next )
 928                         ;
 929                 *prev = ps;
 930                 }
 931                 break;
 932         }
 933         return 0;
 934 }
 935
 936 int bdb_back_init_cf( BackendInfo *bi )
 937 {
 938         int rc;
 939         bi->bi_cf_ocs = bdbocs;
 940
 941         rc = config_register_schema( bdbcfg, bdbocs );
 942         if ( rc ) return rc;
 943         return 0;
 944 }