external/bsd/openldap/dist/servers/slapd/back-bdb/delete.c

   1 /* delete.c - bdb backend delete routine */
   2 /* $OpenLDAP: pkg/ldap/servers/slapd/back-bdb/delete.c,v 1.155.2.8 2008/05/01 21:39:35 quanah Exp $ */
   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/string.h>
  21
  22 #include "lutil.h"
  23 #include "back-bdb.h"
  24
  25 int
  26 bdb_delete( Operation *op, SlapReply *rs )
  27 {
  28         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  29         Entry   *matched = NULL;
  30         struct berval   pdn = {0, NULL};
  31         Entry   *e = NULL;
  32         Entry   *p = NULL;
  33         EntryInfo       *ei = NULL, *eip = NULL;
  34         int             manageDSAit = get_manageDSAit( op );
  35         AttributeDescription *children = slap_schema.si_ad_children;
  36         AttributeDescription *entry = slap_schema.si_ad_entry;
  37         DB_TXN          *ltid = NULL, *lt2;
  38         struct bdb_op_info opinfo = {0};
  39         ID      eid;
  40
  41         BDB_LOCKER      locker = 0;
  42         DB_LOCK         lock, plock;
  43
  44         int             num_retries = 0;
  45
  46         int     rc;
  47
  48         LDAPControl **preread_ctrl = NULL;
  49         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  50         int num_ctrls = 0;
  51
  52         int     parent_is_glue = 0;
  53         int parent_is_leaf = 0;
  54
  55 #ifdef LDAP_X_TXN
  56         int settle = 0;
  57 #endif
  58
  59         Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
  60                 op->o_req_dn.bv_val, 0, 0 );
  61
  62 #ifdef LDAP_X_TXN
  63         if( op->o_txnSpec ) {
  64                 /* acquire connection lock */
  65                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
  66                 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
  67                         rs->sr_text = "invalid transaction identifier";
  68                         rs->sr_err = LDAP_X_TXN_ID_INVALID;
  69                         goto txnReturn;
  70                 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
  71                         settle=1;
  72                         goto txnReturn;
  73                 }
  74
  75                 if( op->o_conn->c_txn_backend == NULL ) {
  76                         op->o_conn->c_txn_backend = op->o_bd;
  77
  78                 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
  79                         rs->sr_text = "transaction cannot span multiple database contexts";
  80                         rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
  81                         goto txnReturn;
  82                 }
  83
  84                 /* insert operation into transaction */
  85
  86                 rs->sr_text = "transaction specified";
  87                 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
  88
  89 txnReturn:
  90                 /* release connection lock */
  91                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
  92
  93                 if( !settle ) {
  94                         send_ldap_result( op, rs );
  95                         return rs->sr_err;
  96                 }
  97         }
  98 #endif
  99
 100         ctrls[num_ctrls] = 0;
 101
 102         /* allocate CSN */
 103         if ( BER_BVISNULL( &op->o_csn ) ) {
 104                 struct berval csn;
 105                 char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
 106
 107                 csn.bv_val = csnbuf;
 108                 csn.bv_len = sizeof(csnbuf);
 109                 slap_get_csn( op, &csn, 1 );
 110         }
 111
 112         if( 0 ) {
 113 retry:  /* transaction retry */
 114                 if( e != NULL ) {
 115                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
 116                         e = NULL;
 117                 }
 118                 if( p != NULL ) {
 119                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 120                         p = NULL;
 121                 }
 122                 Debug( LDAP_DEBUG_TRACE,
 123                         "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
 124                         0, 0, 0 );
 125                 rs->sr_err = TXN_ABORT( ltid );
 126                 ltid = NULL;
 127                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 128                 opinfo.boi_oe.oe_key = NULL;
 129                 op->o_do_not_cache = opinfo.boi_acl_cache;
 130                 if( rs->sr_err != 0 ) {
 131                         rs->sr_err = LDAP_OTHER;
 132                         rs->sr_text = "internal error";
 133                         goto return_results;
 134                 }
 135                 if ( op->o_abandon ) {
 136                         rs->sr_err = SLAPD_ABANDON;
 137                         goto return_results;
 138                 }
 139                 parent_is_glue = 0;
 140                 parent_is_leaf = 0;
 141                 bdb_trans_backoff( ++num_retries );
 142         }
 143
 144         /* begin transaction */
 145         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 146                 bdb->bi_db_opflags );
 147         rs->sr_text = NULL;
 148         if( rs->sr_err != 0 ) {
 149                 Debug( LDAP_DEBUG_TRACE,
 150                         LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
 151                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 152                 rs->sr_err = LDAP_OTHER;
 153                 rs->sr_text = "internal error";
 154                 goto return_results;
 155         }
 156
 157         locker = TXN_ID ( ltid );
 158
 159         opinfo.boi_oe.oe_key = bdb;
 160         opinfo.boi_txn = ltid;
 161         opinfo.boi_err = 0;
 162         opinfo.boi_acl_cache = op->o_do_not_cache;
 163         LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
 164
 165         if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
 166                 dnParent( &op->o_req_ndn, &pdn );
 167         }
 168
 169         /* get entry */
 170         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 171                 locker, &lock );
 172
 173         switch( rs->sr_err ) {
 174         case 0:
 175         case DB_NOTFOUND:
 176                 break;
 177         case DB_LOCK_DEADLOCK:
 178         case DB_LOCK_NOTGRANTED:
 179                 goto retry;
 180         case LDAP_BUSY:
 181                 rs->sr_text = "ldap server busy";
 182                 goto return_results;
 183         default:
 184                 rs->sr_err = LDAP_OTHER;
 185                 rs->sr_text = "internal error";
 186                 goto return_results;
 187         }
 188
 189         if ( rs->sr_err == 0 ) {
 190                 e = ei->bei_e;
 191                 eip = ei->bei_parent;
 192         } else {
 193                 matched = ei->bei_e;
 194         }
 195
 196         /* FIXME : dn2entry() should return non-glue entry */
 197         if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
 198                 Debug( LDAP_DEBUG_ARGS,
 199                         "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
 200                         op->o_req_dn.bv_val, 0, 0);
 201
 202                 if ( matched != NULL ) {
 203                         rs->sr_matched = ch_strdup( matched->e_dn );
 204                         rs->sr_ref = is_entry_referral( matched )
 205                                 ? get_entry_referrals( op, matched )
 206                                 : NULL;
 207                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
 208                         matched = NULL;
 209
 210                 } else {
 211                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 212                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 213                 }
 214
 215                 rs->sr_err = LDAP_REFERRAL;
 216                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 217                 goto return_results;
 218         }
 219
 220         rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
 221         switch( rc ) {
 222         case DB_LOCK_DEADLOCK:
 223         case DB_LOCK_NOTGRANTED:
 224                 goto retry;
 225         case 0:
 226         case DB_NOTFOUND:
 227                 break;
 228         default:
 229                 rs->sr_err = LDAP_OTHER;
 230                 rs->sr_text = "internal error";
 231                 goto return_results;
 232         }
 233         if ( eip ) p = eip->bei_e;
 234
 235         if ( pdn.bv_len != 0 ) {
 236                 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
 237                         Debug( LDAP_DEBUG_TRACE,
 238                                 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
 239                                 "does not exist\n", 0, 0, 0 );
 240                         rs->sr_err = LDAP_OTHER;
 241                         rs->sr_text = "could not locate parent of entry";
 242                         goto return_results;
 243                 }
 244
 245                 /* check parent for "children" acl */
 246                 rs->sr_err = access_allowed( op, p,
 247                         children, NULL, ACL_WDEL, NULL );
 248
 249                 if ( !rs->sr_err  ) {
 250                         switch( opinfo.boi_err ) {
 251                         case DB_LOCK_DEADLOCK:
 252                         case DB_LOCK_NOTGRANTED:
 253                                 goto retry;
 254                         }
 255
 256                         Debug( LDAP_DEBUG_TRACE,
 257                                 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
 258                                 "access to parent\n", 0, 0, 0 );
 259                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 260                         rs->sr_text = "no write access to parent";
 261                         goto return_results;
 262                 }
 263
 264         } else {
 265                 /* no parent, must be root to delete */
 266                 if( ! be_isroot( op ) ) {
 267                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 268                                 || be_shadow_update( op ) ) {
 269                                 p = (Entry *)&slap_entry_root;
 270
 271                                 /* check parent for "children" acl */
 272                                 rs->sr_err = access_allowed( op, p,
 273                                         children, NULL, ACL_WDEL, NULL );
 274
 275                                 p = NULL;
 276
 277                                 if ( !rs->sr_err  ) {
 278                                         switch( opinfo.boi_err ) {
 279                                         case DB_LOCK_DEADLOCK:
 280                                         case DB_LOCK_NOTGRANTED:
 281                                                 goto retry;
 282                                         }
 283
 284                                         Debug( LDAP_DEBUG_TRACE,
 285                                                 "<=- " LDAP_XSTRING(bdb_delete)
 286                                                 ": no access to parent\n",
 287                                                 0, 0, 0 );
 288                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 289                                         rs->sr_text = "no write access to parent";
 290                                         goto return_results;
 291                                 }
 292
 293                         } else {
 294                                 Debug( LDAP_DEBUG_TRACE,
 295                                         "<=- " LDAP_XSTRING(bdb_delete)
 296                                         ": no parent and not root\n", 0, 0, 0 );
 297                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 298                                 goto return_results;
 299                         }
 300                 }
 301         }
 302
 303         if ( get_assert( op ) &&
 304                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 305         {
 306                 rs->sr_err = LDAP_ASSERTION_FAILED;
 307                 goto return_results;
 308         }
 309
 310         rs->sr_err = access_allowed( op, e,
 311                 entry, NULL, ACL_WDEL, NULL );
 312
 313         if ( !rs->sr_err  ) {
 314                 switch( opinfo.boi_err ) {
 315                 case DB_LOCK_DEADLOCK:
 316                 case DB_LOCK_NOTGRANTED:
 317                         goto retry;
 318                 }
 319
 320                 Debug( LDAP_DEBUG_TRACE,
 321                         "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
 322                         "to entry\n", 0, 0, 0 );
 323                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 324                 rs->sr_text = "no write access to entry";
 325                 goto return_results;
 326         }
 327
 328         if ( !manageDSAit && is_entry_referral( e ) ) {
 329                 /* entry is a referral, don't allow delete */
 330                 rs->sr_ref = get_entry_referrals( op, e );
 331
 332                 Debug( LDAP_DEBUG_TRACE,
 333                         LDAP_XSTRING(bdb_delete) ": entry is referral\n",
 334                         0, 0, 0 );
 335
 336                 rs->sr_err = LDAP_REFERRAL;
 337                 rs->sr_matched = ch_strdup( e->e_name.bv_val );
 338                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 339                 goto return_results;
 340         }
 341
 342         /* pre-read */
 343         if( op->o_preread ) {
 344                 if( preread_ctrl == NULL ) {
 345                         preread_ctrl = &ctrls[num_ctrls++];
 346                         ctrls[num_ctrls] = NULL;
 347                 }
 348                 if( slap_read_controls( op, rs, e,
 349                         &slap_pre_read_bv, preread_ctrl ) )
 350                 {
 351                         Debug( LDAP_DEBUG_TRACE,
 352                                 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
 353                                 "failed!\n", 0, 0, 0 );
 354                         if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
 355                                 /* FIXME: is it correct to abort
 356                                  * operation if control fails? */
 357                                 goto return_results;
 358                         }
 359                 }
 360         }
 361
 362         /* nested transaction */
 363         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 364                 bdb->bi_db_opflags );
 365         rs->sr_text = NULL;
 366         if( rs->sr_err != 0 ) {
 367                 Debug( LDAP_DEBUG_TRACE,
 368                         LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
 369                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 370                 rs->sr_err = LDAP_OTHER;
 371                 rs->sr_text = "internal error";
 372                 goto return_results;
 373         }
 374
 375         BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Starting delete %s(%d)",
 376                 e->e_nname.bv_val, e->e_id );
 377
 378         /* Can't do it if we have kids */
 379         rs->sr_err = bdb_cache_children( op, lt2, e );
 380         if( rs->sr_err != DB_NOTFOUND ) {
 381                 switch( rs->sr_err ) {
 382                 case DB_LOCK_DEADLOCK:
 383                 case DB_LOCK_NOTGRANTED:
 384                         goto retry;
 385                 case 0:
 386                         Debug(LDAP_DEBUG_ARGS,
 387                                 "<=- " LDAP_XSTRING(bdb_delete)
 388                                 ": non-leaf %s\n",
 389                                 op->o_req_dn.bv_val, 0, 0);
 390                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 391                         rs->sr_text = "subordinate objects must be deleted first";
 392                         break;
 393                 default:
 394                         Debug(LDAP_DEBUG_ARGS,
 395                                 "<=- " LDAP_XSTRING(bdb_delete)
 396                                 ": has_children failed: %s (%d)\n",
 397                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 398                         rs->sr_err = LDAP_OTHER;
 399                         rs->sr_text = "internal error";
 400                 }
 401                 goto return_results;
 402         }
 403
 404         /* delete from dn2id */
 405         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 406         if ( rs->sr_err != 0 ) {
 407                 Debug(LDAP_DEBUG_TRACE,
 408                         "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
 409                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 410                 switch( rs->sr_err ) {
 411                 case DB_LOCK_DEADLOCK:
 412                 case DB_LOCK_NOTGRANTED:
 413                         goto retry;
 414                 }
 415                 rs->sr_text = "DN index delete failed";
 416                 rs->sr_err = LDAP_OTHER;
 417                 goto return_results;
 418         }
 419
 420         /* delete indices for old attributes */
 421         rs->sr_err = bdb_index_entry_del( op, lt2, e );
 422         if ( rs->sr_err != LDAP_SUCCESS ) {
 423                 Debug(LDAP_DEBUG_TRACE,
 424                         "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
 425                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 426                 switch( rs->sr_err ) {
 427                 case DB_LOCK_DEADLOCK:
 428                 case DB_LOCK_NOTGRANTED:
 429                         goto retry;
 430                 }
 431                 rs->sr_text = "entry index delete failed";
 432                 rs->sr_err = LDAP_OTHER;
 433                 goto return_results;
 434         }
 435
 436         /* fixup delete CSN */
 437         if ( !SLAP_SHADOW( op->o_bd )) {
 438                 struct berval vals[2];
 439
 440                 assert( !BER_BVISNULL( &op->o_csn ) );
 441                 vals[0] = op->o_csn;
 442                 BER_BVZERO( &vals[1] );
 443                 rs->sr_err = bdb_index_values( op, lt2, slap_schema.si_ad_entryCSN,
 444                         vals, 0, SLAP_INDEX_ADD_OP );
 445         if ( rs->sr_err != LDAP_SUCCESS ) {
 446                         switch( rs->sr_err ) {
 447                         case DB_LOCK_DEADLOCK:
 448                         case DB_LOCK_NOTGRANTED:
 449                                 goto retry;
 450                         }
 451                         rs->sr_text = "entryCSN index update failed";
 452                         rs->sr_err = LDAP_OTHER;
 453                         goto return_results;
 454                 }
 455         }
 456
 457         /* delete from id2entry */
 458         rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
 459         if ( rs->sr_err != 0 ) {
 460                 Debug( LDAP_DEBUG_TRACE,
 461                         "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
 462                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 463                 switch( rs->sr_err ) {
 464                 case DB_LOCK_DEADLOCK:
 465                 case DB_LOCK_NOTGRANTED:
 466                         goto retry;
 467                 }
 468                 rs->sr_text = "entry delete failed";
 469                 rs->sr_err = LDAP_OTHER;
 470                 goto return_results;
 471         }
 472
 473         if ( pdn.bv_len != 0 ) {
 474                 parent_is_glue = is_entry_glue(p);
 475                 rs->sr_err = bdb_cache_children( op, lt2, p );
 476                 if ( rs->sr_err != DB_NOTFOUND ) {
 477                         switch( rs->sr_err ) {
 478                         case DB_LOCK_DEADLOCK:
 479                         case DB_LOCK_NOTGRANTED:
 480                                 goto retry;
 481                         case 0:
 482                                 break;
 483                         default:
 484                                 Debug(LDAP_DEBUG_ARGS,
 485                                         "<=- " LDAP_XSTRING(bdb_delete)
 486                                         ": has_children failed: %s (%d)\n",
 487                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 488                                 rs->sr_err = LDAP_OTHER;
 489                                 rs->sr_text = "internal error";
 490                                 goto return_results;
 491                         }
 492                         parent_is_leaf = 1;
 493                 }
 494                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 495                 p = NULL;
 496         }
 497
 498         BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Commit1 delete %s(%d)",
 499                 e->e_nname.bv_val, e->e_id );
 500
 501         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 502                 rs->sr_err = LDAP_OTHER;
 503                 rs->sr_text = "txn_commit(2) failed";
 504                 goto return_results;
 505         }
 506
 507         eid = e->e_id;
 508
 509 #if 0   /* Do we want to reclaim deleted IDs? */
 510         ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
 511         if ( e->e_id == bdb->bi_lastid ) {
 512                 bdb_last_id( op->o_bd, ltid );
 513         }
 514         ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
 515 #endif
 516
 517         if( op->o_noop ) {
 518                 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
 519                         rs->sr_text = "txn_abort (no-op) failed";
 520                 } else {
 521                         rs->sr_err = LDAP_X_NO_OPERATION;
 522                         ltid = NULL;
 523                         goto return_results;
 524                 }
 525         } else {
 526
 527                 BDB_LOG_PRINTF( bdb->bi_dbenv, ltid, "slapd Cache delete %s(%d)",
 528                         e->e_nname.bv_val, e->e_id );
 529
 530                 rc = bdb_cache_delete( bdb, e, locker, &lock );
 531                 switch( rc ) {
 532                 case DB_LOCK_DEADLOCK:
 533                 case DB_LOCK_NOTGRANTED:
 534                         goto retry;
 535                 }
 536
 537                 rs->sr_err = TXN_COMMIT( ltid, 0 );
 538         }
 539         ltid = NULL;
 540         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 541         opinfo.boi_oe.oe_key = NULL;
 542
 543         BDB_LOG_PRINTF( bdb->bi_dbenv, NULL, "slapd Committed delete %s(%d)",
 544                 e->e_nname.bv_val, e->e_id );
 545
 546         if( rs->sr_err != 0 ) {
 547                 Debug( LDAP_DEBUG_TRACE,
 548                         LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
 549                         op->o_noop ? "abort (no-op)" : "commit",
 550                         db_strerror(rs->sr_err), rs->sr_err );
 551                 rs->sr_err = LDAP_OTHER;
 552                 rs->sr_text = "commit failed";
 553
 554                 goto return_results;
 555         }
 556
 557         Debug( LDAP_DEBUG_TRACE,
 558                 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
 559                 op->o_noop ? " (no-op)" : "",
 560                 eid, op->o_req_dn.bv_val );
 561         rs->sr_err = LDAP_SUCCESS;
 562         rs->sr_text = NULL;
 563         if( num_ctrls ) rs->sr_ctrls = ctrls;
 564
 565 return_results:
 566         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 567                 op->o_delete_glue_parent = 1;
 568         }
 569
 570         if ( p )
 571                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 572
 573         /* free entry */
 574         if( e != NULL ) {
 575                 if ( rs->sr_err == LDAP_SUCCESS ) {
 576                         /* Free the EntryInfo and the Entry */
 577                         bdb_cache_entryinfo_lock( BEI(e) );
 578                         bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
 579                 } else {
 580                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
 581                 }
 582         }
 583
 584         if( ltid != NULL ) {
 585                 TXN_ABORT( ltid );
 586         }
 587         if ( opinfo.boi_oe.oe_key ) {
 588                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 589         }
 590
 591         send_ldap_result( op, rs );
 592         slap_graduate_commit_csn( op );
 593
 594         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 595                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 596                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 597         }
 598
 599         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
 600                 TXN_CHECKPOINT( bdb->bi_dbenv,
 601                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 602         }
 603         return rs->sr_err;
 604 }