git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/modify.c

   1 /* modify.c - bdb backend modify 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/string.h>
  21 #include <ac/time.h>
  22
  23 #include "back-bdb.h"
  24
  25 static struct berval scbva[] = {
  26         BER_BVC("glue"),
  27         BER_BVNULL
  28 };
  29
  30 int bdb_modify_internal(
  31         Operation *op,
  32         DB_TXN *tid,
  33         Modifications *modlist,
  34         Entry *e,
  35         const char **text,
  36         char *textbuf,
  37         size_t textlen )
  38 {
  39         int rc, err;
  40         Modification    *mod;
  41         Modifications   *ml;
  42         Attribute       *save_attrs;
  43         Attribute       *ap;
  44         int                     glue_attr_delete = 0;
  45
  46         Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
  47                 e->e_id, e->e_dn, 0);
  48
  49         if ( !acl_check_modlist( op, e, modlist )) {
  50                 return LDAP_INSUFFICIENT_ACCESS;
  51         }
  52
  53         /* save_attrs will be disposed of by bdb_cache_modify */
  54         save_attrs = e->e_attrs;
  55         e->e_attrs = attrs_dup( e->e_attrs );
  56
  57         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
  58                 int match;
  59                 mod = &ml->sml_mod;
  60                 switch( mod->sm_op ) {
  61                 case LDAP_MOD_ADD:
  62                 case LDAP_MOD_REPLACE:
  63                         if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
  64                                 value_match( &match, slap_schema.si_ad_structuralObjectClass,
  65                                         slap_schema.si_ad_structuralObjectClass->
  66                                                 ad_type->sat_equality,
  67                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
  68                                         &mod->sm_values[0], &scbva[0], text );
  69                                 if ( !match ) glue_attr_delete = 1;
  70                         }
  71                 }
  72                 if ( glue_attr_delete )
  73                         break;
  74         }
  75
  76         if ( glue_attr_delete ) {
  77                 Attribute       **app = &e->e_attrs;
  78                 while ( *app != NULL ) {
  79                         if ( !is_at_operational( (*app)->a_desc->ad_type )) {
  80                                 Attribute *save = *app;
  81                                 *app = (*app)->a_next;
  82                                 attr_free( save );
  83                                 continue;
  84                         }
  85                         app = &(*app)->a_next;
  86                 }
  87         }
  88
  89         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
  90                 mod = &ml->sml_mod;
  91
  92                 switch ( mod->sm_op ) {
  93                 case LDAP_MOD_ADD:
  94                         Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: add\n", 0, 0, 0);
  95                         err = modify_add_values( e, mod, get_permissiveModify(op),
  96                                 text, textbuf, textlen );
  97                         if( err != LDAP_SUCCESS ) {
  98                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
  99                                         err, *text, 0);
 100                         }
 101                         break;
 102
 103                 case LDAP_MOD_DELETE:
 104                         if ( glue_attr_delete ) {
 105                                 err = LDAP_SUCCESS;
 106                                 break;
 107                         }
 108
 109                         Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: delete\n", 0, 0, 0);
 110                         err = modify_delete_values( e, mod, get_permissiveModify(op),
 111                                 text, textbuf, textlen );
 112                         assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
 113                         if( err != LDAP_SUCCESS ) {
 114                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 115                                         err, *text, 0);
 116                         }
 117                         break;
 118
 119                 case LDAP_MOD_REPLACE:
 120                         Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: replace\n", 0, 0, 0);
 121                         err = modify_replace_values( e, mod, get_permissiveModify(op),
 122                                 text, textbuf, textlen );
 123                         if( err != LDAP_SUCCESS ) {
 124                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 125                                         err, *text, 0);
 126                         }
 127                         break;
 128
 129                 case LDAP_MOD_INCREMENT:
 130                         Debug(LDAP_DEBUG_ARGS,
 131                                 "bdb_modify_internal: increment\n", 0, 0, 0);
 132                         err = modify_increment_values( e, mod, get_permissiveModify(op),
 133                                 text, textbuf, textlen );
 134                         if( err != LDAP_SUCCESS ) {
 135                                 Debug(LDAP_DEBUG_ARGS,
 136                                         "bdb_modify_internal: %d %s\n",
 137                                         err, *text, 0);
 138                         }
 139                         break;
 140
 141                 case SLAP_MOD_SOFTADD:
 142                         Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: softadd\n", 0, 0, 0);
 143                         /* Avoid problems in index_add_mods()
 144                          * We need to add index if necessary.
 145                          */
 146                         mod->sm_op = LDAP_MOD_ADD;
 147
 148                         err = modify_add_values( e, mod, get_permissiveModify(op),
 149                                 text, textbuf, textlen );
 150
 151                         mod->sm_op = SLAP_MOD_SOFTADD;
 152
 153                         if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
 154                                 err = LDAP_SUCCESS;
 155                         }
 156
 157                         if( err != LDAP_SUCCESS ) {
 158                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 159                                         err, *text, 0);
 160                         }
 161                         break;
 162
 163                 default:
 164                         Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
 165                                 mod->sm_op, 0, 0);
 166                         *text = "Invalid modify operation";
 167                         err = LDAP_OTHER;
 168                         Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 169                                 err, *text, 0);
 170                 }
 171
 172                 if ( err != LDAP_SUCCESS ) {
 173                         attrs_free( e->e_attrs );
 174                         e->e_attrs = save_attrs;
 175                         /* unlock entry, delete from cache */
 176                         return err;
 177                 }
 178
 179                 /* If objectClass was modified, reset the flags */
 180                 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
 181                         e->e_ocflags = 0;
 182                 }
 183
 184                 if ( glue_attr_delete ) e->e_ocflags = 0;
 185
 186                 /* check if modified attribute was indexed
 187                  * but not in case of NOOP... */
 188                 err = bdb_index_is_indexed( op->o_bd, mod->sm_desc );
 189                 if ( err == LDAP_SUCCESS && !op->o_noop ) {
 190                         ap = attr_find( save_attrs, mod->sm_desc );
 191                         if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
 192
 193                         ap = attr_find( e->e_attrs, mod->sm_desc );
 194                         if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
 195                 }
 196         }
 197
 198         /* check that the entry still obeys the schema */
 199         rc = entry_schema_check( op->o_bd, e, save_attrs, text, textbuf, textlen );
 200         if ( rc != LDAP_SUCCESS || op->o_noop ) {
 201                 attrs_free( e->e_attrs );
 202                 /* clear the indexing flags */
 203                 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
 204                         ap->a_flags = 0;
 205                 }
 206                 e->e_attrs = save_attrs;
 207
 208                 if ( rc != LDAP_SUCCESS ) {
 209                         Debug( LDAP_DEBUG_ANY,
 210                                 "entry failed schema check: %s\n",
 211                                 *text, 0, 0 );
 212                 }
 213
 214                 /* if NOOP then silently revert to saved attrs */
 215                 return rc;
 216         }
 217
 218         /* update the indices of the modified attributes */
 219
 220         /* start with deleting the old index entries */
 221         for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
 222                 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
 223                         rc = bdb_index_values( op, tid, ap->a_desc,
 224                                 ap->a_nvals,
 225                                 e->e_id, SLAP_INDEX_DELETE_OP );
 226                         if ( rc != LDAP_SUCCESS ) {
 227                                 attrs_free( e->e_attrs );
 228                                 e->e_attrs = save_attrs;
 229                                 Debug( LDAP_DEBUG_ANY,
 230                                        "Attribute index delete failure",
 231                                        0, 0, 0 );
 232                                 return rc;
 233                         }
 234                         ap->a_flags &= ~SLAP_ATTR_IXDEL;
 235                 }
 236         }
 237
 238         /* add the new index entries */
 239         for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
 240                 if (ap->a_flags & SLAP_ATTR_IXADD) {
 241                         rc = bdb_index_values( op, tid, ap->a_desc,
 242                                 ap->a_nvals,
 243                                 e->e_id, SLAP_INDEX_ADD_OP );
 244                         if ( rc != LDAP_SUCCESS ) {
 245                                 attrs_free( e->e_attrs );
 246                                 e->e_attrs = save_attrs;
 247                                 Debug( LDAP_DEBUG_ANY,
 248                                        "Attribute index add failure",
 249                                        0, 0, 0 );
 250                                 return rc;
 251                         }
 252                         ap->a_flags &= ~SLAP_ATTR_IXADD;
 253                 }
 254         }
 255
 256         return rc;
 257 }
 258
 259
 260 int
 261 bdb_modify( Operation *op, SlapReply *rs )
 262 {
 263         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
 264         Entry           *e = NULL;
 265         EntryInfo       *ei = NULL;
 266         int             manageDSAit = get_manageDSAit( op );
 267         char textbuf[SLAP_TEXT_BUFLEN];
 268         size_t textlen = sizeof textbuf;
 269         DB_TXN  *ltid = NULL, *lt2;
 270         struct bdb_op_info opinfo = {0};
 271         Entry           dummy = {0};
 272         int                     fakeroot = 0;
 273
 274         u_int32_t       locker = 0;
 275         DB_LOCK         lock;
 276
 277         int             num_retries = 0;
 278
 279         LDAPControl **preread_ctrl = NULL;
 280         LDAPControl **postread_ctrl = NULL;
 281         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
 282         int num_ctrls = 0;
 283
 284         int rc;
 285
 286         Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
 287                 op->o_req_dn.bv_val, 0, 0 );
 288
 289         ctrls[num_ctrls] = NULL;
 290
 291         if( 0 ) {
 292 retry:  /* transaction retry */
 293                 if ( dummy.e_attrs ) {
 294                         attrs_free( dummy.e_attrs );
 295                         dummy.e_attrs = NULL;
 296                 }
 297                 if( e != NULL ) {
 298                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
 299                         e = NULL;
 300                 }
 301                 Debug(LDAP_DEBUG_TRACE,
 302                         LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
 303
 304                 rs->sr_err = TXN_ABORT( ltid );
 305                 ltid = NULL;
 306                 op->o_private = NULL;
 307                 op->o_do_not_cache = opinfo.boi_acl_cache;
 308                 if( rs->sr_err != 0 ) {
 309                         rs->sr_err = LDAP_OTHER;
 310                         rs->sr_text = "internal error";
 311                         goto return_results;
 312                 }
 313                 ldap_pvt_thread_yield();
 314                 bdb_trans_backoff( ++num_retries );
 315         }
 316
 317         /* begin transaction */
 318         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 319                 bdb->bi_db_opflags );
 320         rs->sr_text = NULL;
 321         if( rs->sr_err != 0 ) {
 322                 Debug( LDAP_DEBUG_TRACE,
 323                         LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
 324                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 325                 rs->sr_err = LDAP_OTHER;
 326                 rs->sr_text = "internal error";
 327                 goto return_results;
 328         }
 329
 330         locker = TXN_ID ( ltid );
 331
 332         opinfo.boi_bdb = op->o_bd;
 333         opinfo.boi_txn = ltid;
 334         opinfo.boi_locker = locker;
 335         opinfo.boi_err = 0;
 336         opinfo.boi_acl_cache = op->o_do_not_cache;
 337         op->o_private = &opinfo;
 338
 339         /* get entry or ancestor */
 340         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 341                 locker, &lock );
 342
 343         e = ei->bei_e;
 344
 345         if ( rs->sr_err != 0 ) {
 346                 Debug( LDAP_DEBUG_TRACE,
 347                         LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
 348                         rs->sr_err, 0, 0 );
 349                 switch( rs->sr_err ) {
 350                 case DB_LOCK_DEADLOCK:
 351                 case DB_LOCK_NOTGRANTED:
 352                         goto retry;
 353                 case DB_NOTFOUND:
 354                         if ( BER_BVISEMPTY( &op->o_req_ndn )) {
 355                                 struct berval ocbva[] = {
 356                                         BER_BVC("locality"),
 357                                         BER_BVC("syncProviderSubentry"),
 358                                         BER_BVNULL
 359                                 };
 360                                 e = ch_calloc( 1, sizeof(Entry));
 361                                 e->e_name.bv_val = ch_strdup( "" );
 362                                 ber_dupbv( &e->e_nname, &e->e_name );
 363                                 attr_merge( e, slap_schema.si_ad_objectClass, ocbva, NULL );
 364                                 attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
 365                                         &ocbva[0], NULL );
 366                                 e->e_private = ei;
 367                                 fakeroot = 1;
 368                                 rs->sr_err = 0;
 369                         }
 370                         break;
 371                 case LDAP_BUSY:
 372                         rs->sr_text = "ldap server busy";
 373                         goto return_results;
 374                 default:
 375                         rs->sr_err = LDAP_OTHER;
 376                         rs->sr_text = "internal error";
 377                         goto return_results;
 378                 }
 379         }
 380
 381         /* acquire and lock entry */
 382         /* FIXME: dn2entry() should return non-glue entry */
 383         if (( rs->sr_err == DB_NOTFOUND ) ||
 384                 ( !manageDSAit && e && is_entry_glue( e )))
 385         {
 386                 if ( e != NULL ) {
 387                         rs->sr_matched = ch_strdup( e->e_dn );
 388                         rs->sr_ref = is_entry_referral( e )
 389                                 ? get_entry_referrals( op, e )
 390                                 : NULL;
 391                         bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
 392                         e = NULL;
 393
 394                 } else {
 395                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 396                                 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 397                 }
 398
 399                 rs->sr_err = LDAP_REFERRAL;
 400                 send_ldap_result( op, rs );
 401
 402                 if ( rs->sr_ref != default_referral ) {
 403                         ber_bvarray_free( rs->sr_ref );
 404                 }
 405                 free( (char *)rs->sr_matched );
 406                 rs->sr_ref = NULL;
 407                 rs->sr_matched = NULL;
 408
 409                 goto done;
 410         }
 411
 412         if ( !manageDSAit && is_entry_referral( e ) ) {
 413                 /* entry is a referral, don't allow modify */
 414                 rs->sr_ref = get_entry_referrals( op, e );
 415
 416                 Debug( LDAP_DEBUG_TRACE,
 417                         LDAP_XSTRING(bdb_modify) ": entry is referral\n",
 418                         0, 0, 0 );
 419
 420                 rs->sr_err = LDAP_REFERRAL;
 421                 rs->sr_matched = e->e_name.bv_val;
 422                 send_ldap_result( op, rs );
 423
 424                 ber_bvarray_free( rs->sr_ref );
 425                 rs->sr_ref = NULL;
 426                 rs->sr_matched = NULL;
 427                 goto done;
 428         }
 429
 430         if ( get_assert( op ) &&
 431                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 432         {
 433                 rs->sr_err = LDAP_ASSERTION_FAILED;
 434                 goto return_results;
 435         }
 436
 437         if( op->o_preread ) {
 438                 if( preread_ctrl == NULL ) {
 439                         preread_ctrl = &ctrls[num_ctrls++];
 440                         ctrls[num_ctrls] = NULL;
 441                 }
 442                 if ( slap_read_controls( op, rs, e,
 443                         &slap_pre_read_bv, preread_ctrl ) )
 444                 {
 445                         Debug( LDAP_DEBUG_TRACE,
 446                                 "<=- " LDAP_XSTRING(bdb_modify) ": pre-read failed!\n",
 447                                 0, 0, 0 );
 448                         goto return_results;
 449                 }
 450         }
 451
 452         /* nested transaction */
 453         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 454         rs->sr_text = NULL;
 455         if( rs->sr_err != 0 ) {
 456                 Debug( LDAP_DEBUG_TRACE,
 457                         LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: " "%s (%d)\n",
 458                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 459                 rs->sr_err = LDAP_OTHER;
 460                 rs->sr_text = "internal error";
 461                 goto return_results;
 462         }
 463         /* Modify the entry */
 464         dummy = *e;
 465         rs->sr_err = bdb_modify_internal( op, lt2, op->oq_modify.rs_modlist,
 466                 &dummy, &rs->sr_text, textbuf, textlen );
 467
 468         if( rs->sr_err != LDAP_SUCCESS ) {
 469                 Debug( LDAP_DEBUG_TRACE,
 470                         LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
 471                         rs->sr_err, 0, 0 );
 472                 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
 473                         rs->sr_err = opinfo.boi_err;
 474                 }
 475                 /* Only free attrs if they were dup'd.  */
 476                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 477                 switch( rs->sr_err ) {
 478                 case DB_LOCK_DEADLOCK:
 479                 case DB_LOCK_NOTGRANTED:
 480                         goto retry;
 481                 }
 482                 goto return_results;
 483         }
 484
 485         /* change the entry itself */
 486         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 487         if ( rs->sr_err != 0 ) {
 488                 Debug( LDAP_DEBUG_TRACE,
 489                         LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n",
 490                         rs->sr_err, 0, 0 );
 491                 switch( rs->sr_err ) {
 492                 case DB_LOCK_DEADLOCK:
 493                 case DB_LOCK_NOTGRANTED:
 494                         goto retry;
 495                 }
 496                 rs->sr_text = "entry update failed";
 497                 goto return_results;
 498         }
 499
 500         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 501                 rs->sr_err = LDAP_OTHER;
 502                 rs->sr_text = "txn_commit(2) failed";
 503                 goto return_results;
 504         }
 505
 506         if( op->o_postread ) {
 507                 if( postread_ctrl == NULL ) {
 508                         postread_ctrl = &ctrls[num_ctrls++];
 509                         ctrls[num_ctrls] = NULL;
 510                 }
 511                 if( slap_read_controls( op, rs, &dummy,
 512                         &slap_post_read_bv, postread_ctrl ) )
 513                 {
 514                         Debug( LDAP_DEBUG_TRACE,
 515                                 "<=- " LDAP_XSTRING(bdb_modify)
 516                                 ": post-read failed!\n", 0, 0, 0 );
 517                         goto return_results;
 518                 }
 519         }
 520
 521         if( op->o_noop ) {
 522                 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
 523                         rs->sr_text = "txn_abort (no-op) failed";
 524                 } else {
 525                         rs->sr_err = LDAP_NO_OPERATION;
 526                         goto return_results;
 527                 }
 528         } else {
 529                 /* may have changed in bdb_modify_internal() */
 530                 e->e_ocflags = dummy.e_ocflags;
 531                 if ( fakeroot ) {
 532                         e->e_private = NULL;
 533                         entry_free( e );
 534                 } else {
 535                         rc = bdb_cache_modify( e, dummy.e_attrs, bdb->bi_dbenv, locker, &lock );
 536                         switch( rc ) {
 537                         case DB_LOCK_DEADLOCK:
 538                         case DB_LOCK_NOTGRANTED:
 539                                 goto retry;
 540                         }
 541                 }
 542                 dummy.e_attrs = NULL;
 543
 544                 rs->sr_err = TXN_COMMIT( ltid, 0 );
 545         }
 546         ltid = NULL;
 547         op->o_private = NULL;
 548
 549         if( rs->sr_err != 0 ) {
 550                 Debug( LDAP_DEBUG_TRACE,
 551                         LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
 552                         op->o_noop ? "abort (no-op)" : "commit",
 553                         db_strerror(rs->sr_err), rs->sr_err );
 554                 rs->sr_err = LDAP_OTHER;
 555                 rs->sr_text = "commit failed";
 556
 557                 goto return_results;
 558         }
 559
 560         Debug( LDAP_DEBUG_TRACE,
 561                 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
 562                 op->o_noop ? " (no-op)" : "",
 563                 dummy.e_id, op->o_req_dn.bv_val );
 564
 565         rs->sr_err = LDAP_SUCCESS;
 566         rs->sr_text = NULL;
 567         if( num_ctrls ) rs->sr_ctrls = ctrls;
 568
 569 return_results:
 570         if( dummy.e_attrs ) {
 571                 attrs_free( dummy.e_attrs );
 572         }
 573         send_ldap_result( op, rs );
 574
 575         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 576                 ldap_pvt_thread_yield();
 577                 TXN_CHECKPOINT( bdb->bi_dbenv,
 578                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 579         }
 580
 581 done:
 582         if( ltid != NULL ) {
 583                 TXN_ABORT( ltid );
 584                 op->o_private = NULL;
 585         }
 586
 587         if( e != NULL ) {
 588                 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
 589         }
 590
 591         if( preread_ctrl != NULL ) {
 592                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 593                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 594         }
 595         if( postread_ctrl != NULL ) {
 596                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 597                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 598         }
 599         return rs->sr_err;
 600 }