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

   1 /* modrdn.c - bdb backend modrdn routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2006 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 "back-bdb.h"
  23
  24 int
  25 bdb_modrdn( Operation   *op, SlapReply *rs )
  26 {
  27         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  28         AttributeDescription *children = slap_schema.si_ad_children;
  29         AttributeDescription *entry = slap_schema.si_ad_entry;
  30         struct berval   p_dn, p_ndn;
  31         struct berval   new_dn = {0, NULL}, new_ndn = {0, NULL};
  32         Entry           *e = NULL;
  33         Entry           *p = NULL;
  34         EntryInfo       *ei = NULL, *eip = NULL, *nei = NULL, *neip = NULL;
  35         /* LDAP v2 supporting correct attribute handling. */
  36         char textbuf[SLAP_TEXT_BUFLEN];
  37         size_t textlen = sizeof textbuf;
  38         DB_TXN          *ltid = NULL, *lt2;
  39         struct bdb_op_info opinfo = {0};
  40         Entry dummy = {0};
  41
  42         Entry           *np = NULL;                     /* newSuperior Entry */
  43         struct berval   *np_dn = NULL;                  /* newSuperior dn */
  44         struct berval   *np_ndn = NULL;                 /* newSuperior ndn */
  45         struct berval   *new_parent_dn = NULL;  /* np_dn, p_dn, or NULL */
  46
  47         int             manageDSAit = get_manageDSAit( op );
  48
  49         u_int32_t       locker = 0;
  50         DB_LOCK         lock, plock, nplock;
  51
  52         int             num_retries = 0;
  53
  54         LDAPControl **preread_ctrl = NULL;
  55         LDAPControl **postread_ctrl = NULL;
  56         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  57         int num_ctrls = 0;
  58
  59         int     rc;
  60
  61         int parent_is_glue = 0;
  62         int parent_is_leaf = 0;
  63
  64         Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn) "(%s,%s,%s)\n",
  65                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  66                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  67
  68 #ifdef LDAP_X_TXN
  69         if( op->o_txnSpec ) {
  70                 /* acquire connection lock */
  71                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
  72                 if( op->o_conn->c_txn == 0 ) {
  73                         rs->sr_text = "invalid transaction identifier";
  74                         rs->sr_err = LDAP_X_TXN_ID_INVALID;
  75                         goto txnReturn;
  76                 }
  77                 if( op->o_conn->c_txn_backend == NULL ) {
  78                         op->o_conn->c_txn_backend = op->o_bd;
  79
  80                 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
  81                         rs->sr_text = "transaction cannot span multiple database contexts";
  82                         rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
  83                         goto txnReturn;
  84                 }
  85
  86                 /* insert operation into transaction */
  87
  88                 rs->sr_text = "transaction specified";
  89                 rs->sr_err = LDAP_SUCCESS;
  90
  91 txnReturn:
  92                 /* release connection lock */
  93                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
  94
  95                 send_ldap_result( op, rs );
  96                 return rs->sr_err;
  97         }
  98 #endif
  99
 100         ctrls[num_ctrls] = NULL;
 101
 102         slap_mods_opattrs( op, &op->orr_modlist, 1 );
 103
 104         if( 0 ) {
 105 retry:  /* transaction retry */
 106                 if ( dummy.e_attrs ) {
 107                         attrs_free( dummy.e_attrs );
 108                         dummy.e_attrs = NULL;
 109                 }
 110                 if (e != NULL) {
 111                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
 112                         e = NULL;
 113                 }
 114                 if (p != NULL) {
 115                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 116                         p = NULL;
 117                 }
 118                 if (np != NULL) {
 119                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 120                         np = NULL;
 121                 }
 122                 Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn)
 123                                 ": retrying...\n", 0, 0, 0 );
 124
 125                 rs->sr_err = TXN_ABORT( ltid );
 126                 ltid = NULL;
 127                 op->o_private = NULL;
 128                 op->o_do_not_cache = opinfo.boi_acl_cache;
 129                 if( rs->sr_err != 0 ) {
 130                         rs->sr_err = LDAP_OTHER;
 131                         rs->sr_text = "internal error";
 132                         goto return_results;
 133                 }
 134                 if ( op->o_abandon ) {
 135                         rs->sr_err = SLAPD_ABANDON;
 136                         goto return_results;
 137                 }
 138                 parent_is_glue = 0;
 139                 parent_is_leaf = 0;
 140                 bdb_trans_backoff( ++num_retries );
 141         }
 142
 143         /* begin transaction */
 144         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 145                 bdb->bi_db_opflags );
 146         rs->sr_text = NULL;
 147         if( rs->sr_err != 0 ) {
 148                 Debug( LDAP_DEBUG_TRACE,
 149                         LDAP_XSTRING(bdb_modrdn) ": txn_begin failed: "
 150                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 151                 rs->sr_err = LDAP_OTHER;
 152                 rs->sr_text = "internal error";
 153                 goto return_results;
 154         }
 155
 156         locker = TXN_ID ( ltid );
 157
 158         opinfo.boi_bdb = op->o_bd;
 159         opinfo.boi_txn = ltid;
 160         opinfo.boi_locker = locker;
 161         opinfo.boi_err = 0;
 162         opinfo.boi_acl_cache = op->o_do_not_cache;
 163         op->o_private = &opinfo;
 164
 165         /* get entry */
 166         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 167                 locker, &lock );
 168
 169         switch( rs->sr_err ) {
 170         case 0:
 171         case DB_NOTFOUND:
 172                 break;
 173         case DB_LOCK_DEADLOCK:
 174         case DB_LOCK_NOTGRANTED:
 175                 goto retry;
 176         case LDAP_BUSY:
 177                 rs->sr_text = "ldap server busy";
 178                 goto return_results;
 179         default:
 180                 rs->sr_err = LDAP_OTHER;
 181                 rs->sr_text = "internal error";
 182                 goto return_results;
 183         }
 184
 185         e = ei->bei_e;
 186         /* FIXME: dn2entry() should return non-glue entry */
 187         if (( rs->sr_err == DB_NOTFOUND ) ||
 188                 ( !manageDSAit && e && is_entry_glue( e )))
 189         {
 190                 if( e != NULL ) {
 191                         rs->sr_matched = ch_strdup( e->e_dn );
 192                         rs->sr_ref = is_entry_referral( e )
 193                                 ? get_entry_referrals( op, e )
 194                                 : NULL;
 195                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 196                         e = NULL;
 197
 198                 } else {
 199                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 200                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 201                 }
 202
 203                 rs->sr_err = LDAP_REFERRAL;
 204                 send_ldap_result( op, rs );
 205
 206                 ber_bvarray_free( rs->sr_ref );
 207                 free( (char *)rs->sr_matched );
 208                 rs->sr_ref = NULL;
 209                 rs->sr_matched = NULL;
 210
 211                 goto done;
 212         }
 213
 214         if ( get_assert( op ) &&
 215                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 216         {
 217                 rs->sr_err = LDAP_ASSERTION_FAILED;
 218                 goto return_results;
 219         }
 220
 221         /* check write on old entry */
 222         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 223         if ( ! rs->sr_err ) {
 224                 switch( opinfo.boi_err ) {
 225                 case DB_LOCK_DEADLOCK:
 226                 case DB_LOCK_NOTGRANTED:
 227                         goto retry;
 228                 }
 229
 230                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 231                         0, 0 );
 232                 rs->sr_text = "no write access to old entry";
 233                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 234                 goto return_results;
 235         }
 236
 237 #ifndef BDB_HIER
 238         rs->sr_err = bdb_cache_children( op, ltid, e );
 239         if ( rs->sr_err != DB_NOTFOUND ) {
 240                 switch( rs->sr_err ) {
 241                 case DB_LOCK_DEADLOCK:
 242                 case DB_LOCK_NOTGRANTED:
 243                         goto retry;
 244                 case 0:
 245                         Debug(LDAP_DEBUG_ARGS,
 246                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 247                                 ": non-leaf %s\n",
 248                                 op->o_req_dn.bv_val, 0, 0);
 249                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 250                         rs->sr_text = "subtree rename not supported";
 251                         break;
 252                 default:
 253                         Debug(LDAP_DEBUG_ARGS,
 254                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 255                                 ": has_children failed: %s (%d)\n",
 256                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 257                         rs->sr_err = LDAP_OTHER;
 258                         rs->sr_text = "internal error";
 259                 }
 260                 goto return_results;
 261         }
 262         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 263 #endif
 264
 265         if (!manageDSAit && is_entry_referral( e ) ) {
 266                 /* parent is a referral, don't allow add */
 267                 rs->sr_ref = get_entry_referrals( op, e );
 268
 269                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 270                         ": entry %s is referral\n", e->e_dn, 0, 0 );
 271
 272                 rs->sr_err = LDAP_REFERRAL,
 273                 rs->sr_matched = e->e_name.bv_val;
 274                 send_ldap_result( op, rs );
 275
 276                 ber_bvarray_free( rs->sr_ref );
 277                 rs->sr_ref = NULL;
 278                 rs->sr_matched = NULL;
 279                 goto done;
 280         }
 281
 282         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 283 #ifdef BDB_MULTIPLE_SUFFIXES
 284                 /* Allow renaming one suffix entry to another */
 285                 p_ndn = slap_empty_bv;
 286 #else
 287                 /* There can only be one suffix entry */
 288                 rs->sr_err = LDAP_NAMING_VIOLATION;
 289                 rs->sr_text = "cannot rename suffix entry";
 290                 goto return_results;
 291 #endif
 292         } else {
 293                 dnParent( &e->e_nname, &p_ndn );
 294         }
 295         np_ndn = &p_ndn;
 296         if ( p_ndn.bv_len != 0 ) {
 297                 /* Make sure parent entry exist and we can write its
 298                  * children.
 299                  */
 300                 eip = ei->bei_parent;
 301                 rs->sr_err = bdb_cache_find_id( op, ltid,
 302                         eip->bei_id, &eip, 0, locker, &plock );
 303
 304                 switch( rs->sr_err ) {
 305                 case 0:
 306                 case DB_NOTFOUND:
 307                         break;
 308                 case DB_LOCK_DEADLOCK:
 309                 case DB_LOCK_NOTGRANTED:
 310                         goto retry;
 311                 case LDAP_BUSY:
 312                         rs->sr_text = "ldap server busy";
 313                         goto return_results;
 314                 default:
 315                         rs->sr_err = LDAP_OTHER;
 316                         rs->sr_text = "internal error";
 317                         goto return_results;
 318                 }
 319
 320                 p = eip->bei_e;
 321                 if( p == NULL) {
 322                         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 323                                 ": parent does not exist\n", 0, 0, 0);
 324                         rs->sr_err = LDAP_OTHER;
 325                         rs->sr_text = "old entry's parent does not exist";
 326                         goto return_results;
 327                 }
 328         } else {
 329                 p = (Entry *)&slap_entry_root;
 330         }
 331
 332         /* check parent for "children" acl */
 333         rs->sr_err = access_allowed( op, p,
 334                 children, NULL,
 335                 op->oq_modrdn.rs_newSup == NULL ?
 336                         ACL_WRITE : ACL_WDEL,
 337                 NULL );
 338
 339         if ( !p_ndn.bv_len )
 340                 p = NULL;
 341
 342         if ( ! rs->sr_err ) {
 343                 switch( opinfo.boi_err ) {
 344                 case DB_LOCK_DEADLOCK:
 345                 case DB_LOCK_NOTGRANTED:
 346                         goto retry;
 347                 }
 348
 349                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 350                 Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 351                         0, 0 );
 352                 rs->sr_text = "no write access to old parent's children";
 353                 goto return_results;
 354         }
 355
 356         Debug( LDAP_DEBUG_TRACE,
 357                 LDAP_XSTRING(bdb_modrdn) ": wr to children "
 358                 "of entry %s OK\n", p_ndn.bv_val, 0, 0 );
 359
 360         if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 361                 p_dn = slap_empty_bv;
 362         } else {
 363                 dnParent( &e->e_name, &p_dn );
 364         }
 365
 366         Debug( LDAP_DEBUG_TRACE,
 367                 LDAP_XSTRING(bdb_modrdn) ": parent dn=%s\n",
 368                 p_dn.bv_val, 0, 0 );
 369
 370         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 371
 372         if ( op->oq_modrdn.rs_newSup != NULL ) {
 373                 Debug( LDAP_DEBUG_TRACE,
 374                         LDAP_XSTRING(bdb_modrdn)
 375                         ": new parent \"%s\" requested...\n",
 376                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 377
 378                 /*  newSuperior == oldParent? */
 379                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 380                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 381                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 382                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 383                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 384                 }
 385         }
 386
 387         /* There's a BDB_MULTIPLE_SUFFIXES case here that this code doesn't
 388          * support. E.g., two suffixes dc=foo,dc=com and dc=bar,dc=net.
 389          * We do not allow modDN
 390          *   dc=foo,dc=com
 391          *    newrdn dc=bar
 392          *    newsup dc=net
 393          * and we probably should. But since MULTIPLE_SUFFIXES is deprecated
 394          * I'm ignoring this problem for now.
 395          */
 396         if ( op->oq_modrdn.rs_newSup != NULL ) {
 397                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 398                         np_dn = op->oq_modrdn.rs_newSup;
 399                         np_ndn = op->oq_modrdn.rs_nnewSup;
 400
 401                         /* newSuperior == oldParent? - checked above */
 402                         /* newSuperior == entry being moved?, if so ==> ERROR */
 403                         if ( dnIsSuffix( np_ndn, &e->e_nname )) {
 404                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 405                                 rs->sr_text = "new superior not found";
 406                                 goto return_results;
 407                         }
 408                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 409
 410                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 411                                 &neip, 0, locker, &nplock );
 412
 413                         switch( rs->sr_err ) {
 414                         case 0: np = neip->bei_e;
 415                         case DB_NOTFOUND:
 416                                 break;
 417                         case DB_LOCK_DEADLOCK:
 418                         case DB_LOCK_NOTGRANTED:
 419                                 goto retry;
 420                         case LDAP_BUSY:
 421                                 rs->sr_text = "ldap server busy";
 422                                 goto return_results;
 423                         default:
 424                                 rs->sr_err = LDAP_OTHER;
 425                                 rs->sr_text = "internal error";
 426                                 goto return_results;
 427                         }
 428
 429                         if( np == NULL) {
 430                                 Debug( LDAP_DEBUG_TRACE,
 431                                         LDAP_XSTRING(bdb_modrdn)
 432                                         ": newSup(ndn=%s) not here!\n",
 433                                         np_ndn->bv_val, 0, 0);
 434                                 rs->sr_text = "new superior not found";
 435                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 436                                 goto return_results;
 437                         }
 438
 439                         Debug( LDAP_DEBUG_TRACE,
 440                                 LDAP_XSTRING(bdb_modrdn)
 441                                 ": wr to new parent OK np=%p, id=%ld\n",
 442                                 (void *) np, (long) np->e_id, 0 );
 443
 444                         /* check newSuperior for "children" acl */
 445                         rs->sr_err = access_allowed( op, np, children,
 446                                 NULL, ACL_WADD, NULL );
 447
 448                         if( ! rs->sr_err ) {
 449                                 switch( opinfo.boi_err ) {
 450                                 case DB_LOCK_DEADLOCK:
 451                                 case DB_LOCK_NOTGRANTED:
 452                                         goto retry;
 453                                 }
 454
 455                                 Debug( LDAP_DEBUG_TRACE,
 456                                         LDAP_XSTRING(bdb_modrdn)
 457                                         ": no wr to newSup children\n",
 458                                         0, 0, 0 );
 459                                 rs->sr_text = "no write access to new superior's children";
 460                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 461                                 goto return_results;
 462                         }
 463
 464                         if ( is_entry_alias( np ) ) {
 465                                 /* parent is an alias, don't allow add */
 466                                 Debug( LDAP_DEBUG_TRACE,
 467                                         LDAP_XSTRING(bdb_modrdn)
 468                                         ": entry is alias\n",
 469                                         0, 0, 0 );
 470                                 rs->sr_text = "new superior is an alias";
 471                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 472                                 goto return_results;
 473                         }
 474
 475                         if ( is_entry_referral( np ) ) {
 476                                 /* parent is a referral, don't allow add */
 477                                 Debug( LDAP_DEBUG_TRACE,
 478                                         LDAP_XSTRING(bdb_modrdn)
 479                                         ": entry is referral\n",
 480                                         0, 0, 0 );
 481                                 rs->sr_text = "new superior is a referral";
 482                                 rs->sr_err = LDAP_OTHER;
 483                                 goto return_results;
 484                         }
 485
 486                 } else {
 487                         np_dn = NULL;
 488
 489                         /* no parent, modrdn entry directly under root */
 490                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 491                                 || be_isupdate( op ) ) {
 492                                 np = (Entry *)&slap_entry_root;
 493
 494                                 /* check parent for "children" acl */
 495                                 rs->sr_err = access_allowed( op, np,
 496                                         children, NULL, ACL_WADD, NULL );
 497
 498                                 np = NULL;
 499
 500                                 if ( ! rs->sr_err ) {
 501                                         switch( opinfo.boi_err ) {
 502                                         case DB_LOCK_DEADLOCK:
 503                                         case DB_LOCK_NOTGRANTED:
 504                                                 goto retry;
 505                                         }
 506
 507                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 508                                         Debug( LDAP_DEBUG_TRACE,
 509                                                 "no access to new superior\n",
 510                                                 0, 0, 0 );
 511                                         rs->sr_text =
 512                                                 "no write access to new superior's children";
 513                                         goto return_results;
 514                                 }
 515                         }
 516                 }
 517
 518                 Debug( LDAP_DEBUG_TRACE,
 519                         LDAP_XSTRING(bdb_modrdn)
 520                         ": wr to new parent's children OK\n",
 521                         0, 0, 0 );
 522
 523                 new_parent_dn = np_dn;
 524         }
 525
 526         /* Build target dn and make sure target entry doesn't exist already. */
 527         if (!new_dn.bv_val) {
 528                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 529         }
 530
 531         if (!new_ndn.bv_val) {
 532                 struct berval bv = {0, NULL};
 533                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 534                 ber_dupbv( &new_ndn, &bv );
 535         }
 536
 537         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": new ndn=%s\n",
 538                 new_ndn.bv_val, 0, 0 );
 539
 540         /* Shortcut the search */
 541         nei = neip ? neip : eip;
 542         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 543         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 544         switch( rs->sr_err ) {
 545         case DB_LOCK_DEADLOCK:
 546         case DB_LOCK_NOTGRANTED:
 547                 goto retry;
 548         case DB_NOTFOUND:
 549                 break;
 550         case 0:
 551                 rs->sr_err = LDAP_ALREADY_EXISTS;
 552                 goto return_results;
 553         default:
 554                 rs->sr_err = LDAP_OTHER;
 555                 rs->sr_text = "internal error";
 556                 goto return_results;
 557         }
 558
 559         assert( op->orr_modlist != NULL );
 560
 561         if( op->o_preread ) {
 562                 if( preread_ctrl == NULL ) {
 563                         preread_ctrl = &ctrls[num_ctrls++];
 564                         ctrls[num_ctrls] = NULL;
 565                 }
 566                 if( slap_read_controls( op, rs, e,
 567                         &slap_pre_read_bv, preread_ctrl ) )
 568                 {
 569                         Debug( LDAP_DEBUG_TRACE,
 570                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 571                                 ": post-read failed!\n", 0, 0, 0 );
 572                         goto return_results;
 573                 }
 574         }
 575
 576         /* nested transaction */
 577         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 578         rs->sr_text = NULL;
 579         if( rs->sr_err != 0 ) {
 580                 Debug( LDAP_DEBUG_TRACE,
 581                         LDAP_XSTRING(bdb_modrdn)
 582                         ": txn_begin(2) failed: %s (%d)\n",
 583                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 584                 rs->sr_err = LDAP_OTHER;
 585                 rs->sr_text = "internal error";
 586                 goto return_results;
 587         }
 588
 589         /* delete old DN */
 590         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 591         if ( rs->sr_err != 0 ) {
 592                 Debug(LDAP_DEBUG_TRACE,
 593                         "<=- " LDAP_XSTRING(bdb_modrdn)
 594                         ": dn2id del failed: %s (%d)\n",
 595                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 596                 switch( rs->sr_err ) {
 597                 case DB_LOCK_DEADLOCK:
 598                 case DB_LOCK_NOTGRANTED:
 599                         goto retry;
 600                 }
 601                 rs->sr_err = LDAP_OTHER;
 602                 rs->sr_text = "DN index delete fail";
 603                 goto return_results;
 604         }
 605
 606         /* copy the entry, then override some fields */
 607         dummy = *e;
 608         dummy.e_name = new_dn;
 609         dummy.e_nname = new_ndn;
 610         dummy.e_attrs = NULL;
 611
 612         /* add new DN */
 613         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 614         if ( rs->sr_err != 0 ) {
 615                 Debug(LDAP_DEBUG_TRACE,
 616                         "<=- " LDAP_XSTRING(bdb_modrdn)
 617                         ": dn2id add failed: %s (%d)\n",
 618                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 619                 switch( rs->sr_err ) {
 620                 case DB_LOCK_DEADLOCK:
 621                 case DB_LOCK_NOTGRANTED:
 622                         goto retry;
 623                 }
 624                 rs->sr_err = LDAP_OTHER;
 625                 rs->sr_text = "DN index add failed";
 626                 goto return_results;
 627         }
 628
 629         dummy.e_attrs = e->e_attrs;
 630
 631         /* modify entry */
 632         rs->sr_err = bdb_modify_internal( op, lt2, op->orr_modlist, &dummy,
 633                 &rs->sr_text, textbuf, textlen );
 634         if( rs->sr_err != LDAP_SUCCESS ) {
 635                 Debug(LDAP_DEBUG_TRACE,
 636                         "<=- " LDAP_XSTRING(bdb_modrdn)
 637                         ": modify failed: %s (%d)\n",
 638                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 639                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 640                         rs->sr_err = opinfo.boi_err;
 641                 }
 642                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 643                 switch( rs->sr_err ) {
 644                 case DB_LOCK_DEADLOCK:
 645                 case DB_LOCK_NOTGRANTED:
 646                         goto retry;
 647                 }
 648                 goto return_results;
 649         }
 650
 651         /* id2entry index */
 652         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 653         if ( rs->sr_err != 0 ) {
 654                 Debug(LDAP_DEBUG_TRACE,
 655                         "<=- " LDAP_XSTRING(bdb_modrdn)
 656                         ": id2entry failed: %s (%d)\n",
 657                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 658                 switch( rs->sr_err ) {
 659                 case DB_LOCK_DEADLOCK:
 660                 case DB_LOCK_NOTGRANTED:
 661                         goto retry;
 662                 }
 663                 rs->sr_err = LDAP_OTHER;
 664                 rs->sr_text = "entry update failed";
 665                 goto return_results;
 666         }
 667
 668         if ( p_ndn.bv_len != 0 ) {
 669                 parent_is_glue = is_entry_glue(p);
 670                 rs->sr_err = bdb_cache_children( op, lt2, p );
 671                 if ( rs->sr_err != DB_NOTFOUND ) {
 672                         switch( rs->sr_err ) {
 673                         case DB_LOCK_DEADLOCK:
 674                         case DB_LOCK_NOTGRANTED:
 675                                 goto retry;
 676                         case 0:
 677                                 break;
 678                         default:
 679                                 Debug(LDAP_DEBUG_ARGS,
 680                                         "<=- " LDAP_XSTRING(bdb_modrdn)
 681                                         ": has_children failed: %s (%d)\n",
 682                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 683                                 rs->sr_err = LDAP_OTHER;
 684                                 rs->sr_text = "internal error";
 685                                 goto return_results;
 686                         }
 687                         parent_is_leaf = 1;
 688                 }
 689                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 690                 p = NULL;
 691         }
 692
 693         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 694                 rs->sr_err = LDAP_OTHER;
 695                 rs->sr_text = "txn_commit(2) failed";
 696                 goto return_results;
 697         }
 698
 699         if( op->o_postread ) {
 700                 if( postread_ctrl == NULL ) {
 701                         postread_ctrl = &ctrls[num_ctrls++];
 702                         ctrls[num_ctrls] = NULL;
 703                 }
 704                 if( slap_read_controls( op, rs, &dummy,
 705                         &slap_post_read_bv, postread_ctrl ) )
 706                 {
 707                         Debug( LDAP_DEBUG_TRACE,
 708                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 709                                 ": post-read failed!\n", 0, 0, 0 );
 710                         goto return_results;
 711                 }
 712         }
 713
 714         if( op->o_noop ) {
 715                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 716                         rs->sr_text = "txn_abort (no-op) failed";
 717                 } else {
 718                         rs->sr_err = LDAP_X_NO_OPERATION;
 719                         ltid = NULL;
 720                         goto return_results;
 721                 }
 722
 723         } else {
 724                 rc = bdb_cache_modrdn( bdb, e, &op->orr_nnewrdn, &dummy, neip,
 725                         locker, &lock );
 726                 switch( rc ) {
 727                 case DB_LOCK_DEADLOCK:
 728                 case DB_LOCK_NOTGRANTED:
 729                         goto retry;
 730                 }
 731                 dummy.e_attrs = NULL;
 732                 new_dn.bv_val = NULL;
 733                 new_ndn.bv_val = NULL;
 734
 735                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 736                         rs->sr_text = "txn_commit failed";
 737                 } else {
 738                         rs->sr_err = LDAP_SUCCESS;
 739                 }
 740         }
 741
 742         ltid = NULL;
 743         op->o_private = NULL;
 744
 745         if( rs->sr_err != LDAP_SUCCESS ) {
 746                 Debug( LDAP_DEBUG_TRACE,
 747                         LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
 748                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 749                 rs->sr_err = LDAP_OTHER;
 750
 751                 goto return_results;
 752         }
 753
 754         Debug(LDAP_DEBUG_TRACE,
 755                 LDAP_XSTRING(bdb_modrdn)
 756                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 757                 op->o_noop ? " (no-op)" : "",
 758                 dummy.e_id, op->o_req_dn.bv_val );
 759         rs->sr_text = NULL;
 760         if( num_ctrls ) rs->sr_ctrls = ctrls;
 761
 762 return_results:
 763         if ( dummy.e_attrs ) {
 764                 attrs_free( dummy.e_attrs );
 765         }
 766         send_ldap_result( op, rs );
 767
 768         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 769                 TXN_CHECKPOINT( bdb->bi_dbenv,
 770                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 771         }
 772
 773         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 774                 op->o_delete_glue_parent = 1;
 775         }
 776
 777 done:
 778         slap_graduate_commit_csn( op );
 779
 780         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 781         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 782
 783         /* LDAP v3 Support */
 784         if( np != NULL ) {
 785                 /* free new parent and reader lock */
 786                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 787         }
 788
 789         if( p != NULL ) {
 790                 /* free parent and reader lock */
 791                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 792         }
 793
 794         /* free entry */
 795         if( e != NULL ) {
 796                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 797         }
 798
 799         if( ltid != NULL ) {
 800                 TXN_ABORT( ltid );
 801         }
 802         op->o_private = NULL;
 803
 804         if( preread_ctrl != NULL ) {
 805                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 806                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 807         }
 808         if( postread_ctrl != NULL ) {
 809                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 810                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 811         }
 812         return rs->sr_err;
 813 }