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

   1 /* modrdn.c - mdb backend modrdn routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2011 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-mdb.h"
  23
  24 int
  25 mdb_modrdn( Operation   *op, SlapReply *rs )
  26 {
  27         struct mdb_info *mdb = (struct mdb_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 mdb_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         DB_LOCK         lock, plock, nplock;
  50
  51         int             num_retries = 0;
  52
  53         LDAPControl **preread_ctrl = NULL;
  54         LDAPControl **postread_ctrl = NULL;
  55         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  56         int num_ctrls = 0;
  57
  58         int     rc;
  59
  60         int parent_is_glue = 0;
  61         int parent_is_leaf = 0;
  62
  63 #ifdef LDAP_X_TXN
  64         int settle = 0;
  65 #endif
  66
  67         Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(mdb_modrdn) "(%s,%s,%s)\n",
  68                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  69                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  70
  71 #ifdef LDAP_X_TXN
  72         if( op->o_txnSpec ) {
  73                 /* acquire connection lock */
  74                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
  75                 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
  76                         rs->sr_text = "invalid transaction identifier";
  77                         rs->sr_err = LDAP_X_TXN_ID_INVALID;
  78                         goto txnReturn;
  79                 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
  80                         settle=1;
  81                         goto txnReturn;
  82                 }
  83
  84                 if( op->o_conn->c_txn_backend == NULL ) {
  85                         op->o_conn->c_txn_backend = op->o_bd;
  86
  87                 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
  88                         rs->sr_text = "transaction cannot span multiple database contexts";
  89                         rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
  90                         goto txnReturn;
  91                 }
  92
  93                 /* insert operation into transaction */
  94
  95                 rs->sr_text = "transaction specified";
  96                 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
  97
  98 txnReturn:
  99                 /* release connection lock */
 100                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 101
 102                 if( !settle ) {
 103                         send_ldap_result( op, rs );
 104                         return rs->sr_err;
 105                 }
 106         }
 107 #endif
 108
 109         ctrls[num_ctrls] = NULL;
 110
 111         slap_mods_opattrs( op, &op->orr_modlist, 1 );
 112
 113         if( 0 ) {
 114 retry:  /* transaction retry */
 115                 if ( dummy.e_attrs ) {
 116                         attrs_free( dummy.e_attrs );
 117                         dummy.e_attrs = NULL;
 118                 }
 119                 if (e != NULL) {
 120                         mdb_unlocked_cache_return_entry_w(&mdb->bi_cache, e);
 121                         e = NULL;
 122                 }
 123                 if (p != NULL) {
 124                         mdb_unlocked_cache_return_entry_r(&mdb->bi_cache, p);
 125                         p = NULL;
 126                 }
 127                 if (np != NULL) {
 128                         mdb_unlocked_cache_return_entry_r(&mdb->bi_cache, np);
 129                         np = NULL;
 130                 }
 131                 Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(mdb_modrdn)
 132                                 ": retrying...\n", 0, 0, 0 );
 133
 134                 rs->sr_err = TXN_ABORT( ltid );
 135                 ltid = NULL;
 136                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 137                 opinfo.boi_oe.oe_key = NULL;
 138                 op->o_do_not_cache = opinfo.boi_acl_cache;
 139                 if( rs->sr_err != 0 ) {
 140                         rs->sr_err = LDAP_OTHER;
 141                         rs->sr_text = "internal error";
 142                         goto return_results;
 143                 }
 144                 if ( op->o_abandon ) {
 145                         rs->sr_err = SLAPD_ABANDON;
 146                         goto return_results;
 147                 }
 148                 parent_is_glue = 0;
 149                 parent_is_leaf = 0;
 150                 mdb_trans_backoff( ++num_retries );
 151         }
 152
 153         /* begin transaction */
 154         rs->sr_err = TXN_BEGIN( mdb->bi_dbenv, NULL, &ltid,
 155                 mdb->bi_db_opflags );
 156         rs->sr_text = NULL;
 157         if( rs->sr_err != 0 ) {
 158                 Debug( LDAP_DEBUG_TRACE,
 159                         LDAP_XSTRING(mdb_modrdn) ": txn_begin failed: "
 160                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 161                 rs->sr_err = LDAP_OTHER;
 162                 rs->sr_text = "internal error";
 163                 goto return_results;
 164         }
 165
 166         opinfo.boi_oe.oe_key = mdb;
 167         opinfo.boi_txn = ltid;
 168         opinfo.boi_err = 0;
 169         opinfo.boi_acl_cache = op->o_do_not_cache;
 170         LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
 171
 172         /* get entry */
 173         rs->sr_err = mdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 174                 &lock );
 175
 176         switch( rs->sr_err ) {
 177         case 0:
 178         case DB_NOTFOUND:
 179                 break;
 180         case DB_LOCK_DEADLOCK:
 181         case DB_LOCK_NOTGRANTED:
 182                 goto retry;
 183         case LDAP_BUSY:
 184                 rs->sr_text = "ldap server busy";
 185                 goto return_results;
 186         default:
 187                 rs->sr_err = LDAP_OTHER;
 188                 rs->sr_text = "internal error";
 189                 goto return_results;
 190         }
 191
 192         e = ei->bei_e;
 193         /* FIXME: dn2entry() should return non-glue entry */
 194         if (( rs->sr_err == DB_NOTFOUND ) ||
 195                 ( !manageDSAit && e && is_entry_glue( e )))
 196         {
 197                 if( e != NULL ) {
 198                         rs->sr_matched = ch_strdup( e->e_dn );
 199                         rs->sr_ref = is_entry_referral( e )
 200                                 ? get_entry_referrals( op, e )
 201                                 : NULL;
 202                         mdb_unlocked_cache_return_entry_r( &mdb->bi_cache, e);
 203                         e = NULL;
 204
 205                 } else {
 206                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 207                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 208                 }
 209
 210                 rs->sr_err = LDAP_REFERRAL;
 211                 send_ldap_result( op, rs );
 212
 213                 ber_bvarray_free( rs->sr_ref );
 214                 free( (char *)rs->sr_matched );
 215                 rs->sr_ref = NULL;
 216                 rs->sr_matched = NULL;
 217
 218                 goto done;
 219         }
 220
 221         if ( get_assert( op ) &&
 222                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 223         {
 224                 rs->sr_err = LDAP_ASSERTION_FAILED;
 225                 goto return_results;
 226         }
 227
 228         /* check write on old entry */
 229         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 230         if ( ! rs->sr_err ) {
 231                 switch( opinfo.boi_err ) {
 232                 case DB_LOCK_DEADLOCK:
 233                 case DB_LOCK_NOTGRANTED:
 234                         goto retry;
 235                 }
 236
 237                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 238                         0, 0 );
 239                 rs->sr_text = "no write access to old entry";
 240                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 241                 goto return_results;
 242         }
 243
 244 #ifndef MDB_HIER
 245         rs->sr_err = mdb_cache_children( op, ltid, e );
 246         if ( rs->sr_err != DB_NOTFOUND ) {
 247                 switch( rs->sr_err ) {
 248                 case DB_LOCK_DEADLOCK:
 249                 case DB_LOCK_NOTGRANTED:
 250                         goto retry;
 251                 case 0:
 252                         Debug(LDAP_DEBUG_ARGS,
 253                                 "<=- " LDAP_XSTRING(mdb_modrdn)
 254                                 ": non-leaf %s\n",
 255                                 op->o_req_dn.bv_val, 0, 0);
 256                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 257                         rs->sr_text = "subtree rename not supported";
 258                         break;
 259                 default:
 260                         Debug(LDAP_DEBUG_ARGS,
 261                                 "<=- " LDAP_XSTRING(mdb_modrdn)
 262                                 ": has_children failed: %s (%d)\n",
 263                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 264                         rs->sr_err = LDAP_OTHER;
 265                         rs->sr_text = "internal error";
 266                 }
 267                 goto return_results;
 268         }
 269         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 270 #endif
 271
 272         if (!manageDSAit && is_entry_referral( e ) ) {
 273                 /* parent is a referral, don't allow add */
 274                 rs->sr_ref = get_entry_referrals( op, e );
 275
 276                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_modrdn)
 277                         ": entry %s is referral\n", e->e_dn, 0, 0 );
 278
 279                 rs->sr_err = LDAP_REFERRAL,
 280                 rs->sr_matched = e->e_name.bv_val;
 281                 send_ldap_result( op, rs );
 282
 283                 ber_bvarray_free( rs->sr_ref );
 284                 rs->sr_ref = NULL;
 285                 rs->sr_matched = NULL;
 286                 goto done;
 287         }
 288
 289         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 290 #ifdef MDB_MULTIPLE_SUFFIXES
 291                 /* Allow renaming one suffix entry to another */
 292                 p_ndn = slap_empty_bv;
 293 #else
 294                 /* There can only be one suffix entry */
 295                 rs->sr_err = LDAP_NAMING_VIOLATION;
 296                 rs->sr_text = "cannot rename suffix entry";
 297                 goto return_results;
 298 #endif
 299         } else {
 300                 dnParent( &e->e_nname, &p_ndn );
 301         }
 302         np_ndn = &p_ndn;
 303         eip = ei->bei_parent;
 304         if ( eip && eip->bei_id ) {
 305                 /* Make sure parent entry exist and we can write its
 306                  * children.
 307                  */
 308                 rs->sr_err = mdb_cache_find_id( op, ltid,
 309                         eip->bei_id, &eip, 0, &plock );
 310
 311                 switch( rs->sr_err ) {
 312                 case 0:
 313                 case DB_NOTFOUND:
 314                         break;
 315                 case DB_LOCK_DEADLOCK:
 316                 case DB_LOCK_NOTGRANTED:
 317                         goto retry;
 318                 case LDAP_BUSY:
 319                         rs->sr_text = "ldap server busy";
 320                         goto return_results;
 321                 default:
 322                         rs->sr_err = LDAP_OTHER;
 323                         rs->sr_text = "internal error";
 324                         goto return_results;
 325                 }
 326
 327                 p = eip->bei_e;
 328                 if( p == NULL) {
 329                         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_modrdn)
 330                                 ": parent does not exist\n", 0, 0, 0);
 331                         rs->sr_err = LDAP_OTHER;
 332                         rs->sr_text = "old entry's parent does not exist";
 333                         goto return_results;
 334                 }
 335         } else {
 336                 p = (Entry *)&slap_entry_root;
 337         }
 338
 339         /* check parent for "children" acl */
 340         rs->sr_err = access_allowed( op, p,
 341                 children, NULL,
 342                 op->oq_modrdn.rs_newSup == NULL ?
 343                         ACL_WRITE : ACL_WDEL,
 344                 NULL );
 345
 346         if ( !p_ndn.bv_len )
 347                 p = NULL;
 348
 349         if ( ! rs->sr_err ) {
 350                 switch( opinfo.boi_err ) {
 351                 case DB_LOCK_DEADLOCK:
 352                 case DB_LOCK_NOTGRANTED:
 353                         goto retry;
 354                 }
 355
 356                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 357                 Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 358                         0, 0 );
 359                 rs->sr_text = "no write access to old parent's children";
 360                 goto return_results;
 361         }
 362
 363         Debug( LDAP_DEBUG_TRACE,
 364                 LDAP_XSTRING(mdb_modrdn) ": wr to children "
 365                 "of entry %s OK\n", p_ndn.bv_val, 0, 0 );
 366
 367         if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 368                 p_dn = slap_empty_bv;
 369         } else {
 370                 dnParent( &e->e_name, &p_dn );
 371         }
 372
 373         Debug( LDAP_DEBUG_TRACE,
 374                 LDAP_XSTRING(mdb_modrdn) ": parent dn=%s\n",
 375                 p_dn.bv_val, 0, 0 );
 376
 377         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 378
 379         if ( op->oq_modrdn.rs_newSup != NULL ) {
 380                 Debug( LDAP_DEBUG_TRACE,
 381                         LDAP_XSTRING(mdb_modrdn)
 382                         ": new parent \"%s\" requested...\n",
 383                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 384
 385                 /*  newSuperior == oldParent? */
 386                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 387                         Debug( LDAP_DEBUG_TRACE, "mdb_back_modrdn: "
 388                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 389                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 390                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 391                 }
 392         }
 393
 394         /* There's a MDB_MULTIPLE_SUFFIXES case here that this code doesn't
 395          * support. E.g., two suffixes dc=foo,dc=com and dc=bar,dc=net.
 396          * We do not allow modDN
 397          *   dc=foo,dc=com
 398          *    newrdn dc=bar
 399          *    newsup dc=net
 400          * and we probably should. But since MULTIPLE_SUFFIXES is deprecated
 401          * I'm ignoring this problem for now.
 402          */
 403         if ( op->oq_modrdn.rs_newSup != NULL ) {
 404                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 405                         np_dn = op->oq_modrdn.rs_newSup;
 406                         np_ndn = op->oq_modrdn.rs_nnewSup;
 407
 408                         /* newSuperior == oldParent? - checked above */
 409                         /* newSuperior == entry being moved?, if so ==> ERROR */
 410                         if ( dnIsSuffix( np_ndn, &e->e_nname )) {
 411                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 412                                 rs->sr_text = "new superior not found";
 413                                 goto return_results;
 414                         }
 415                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 416
 417                         rs->sr_err = mdb_dn2entry( op, ltid, np_ndn,
 418                                 &neip, 0, &nplock );
 419
 420                         switch( rs->sr_err ) {
 421                         case 0: np = neip->bei_e;
 422                         case DB_NOTFOUND:
 423                                 break;
 424                         case DB_LOCK_DEADLOCK:
 425                         case DB_LOCK_NOTGRANTED:
 426                                 goto retry;
 427                         case LDAP_BUSY:
 428                                 rs->sr_text = "ldap server busy";
 429                                 goto return_results;
 430                         default:
 431                                 rs->sr_err = LDAP_OTHER;
 432                                 rs->sr_text = "internal error";
 433                                 goto return_results;
 434                         }
 435
 436                         if( np == NULL) {
 437                                 Debug( LDAP_DEBUG_TRACE,
 438                                         LDAP_XSTRING(mdb_modrdn)
 439                                         ": newSup(ndn=%s) not here!\n",
 440                                         np_ndn->bv_val, 0, 0);
 441                                 rs->sr_text = "new superior not found";
 442                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 443                                 goto return_results;
 444                         }
 445
 446                         Debug( LDAP_DEBUG_TRACE,
 447                                 LDAP_XSTRING(mdb_modrdn)
 448                                 ": wr to new parent OK np=%p, id=%ld\n",
 449                                 (void *) np, (long) np->e_id, 0 );
 450
 451                         /* check newSuperior for "children" acl */
 452                         rs->sr_err = access_allowed( op, np, children,
 453                                 NULL, ACL_WADD, NULL );
 454
 455                         if( ! rs->sr_err ) {
 456                                 switch( opinfo.boi_err ) {
 457                                 case DB_LOCK_DEADLOCK:
 458                                 case DB_LOCK_NOTGRANTED:
 459                                         goto retry;
 460                                 }
 461
 462                                 Debug( LDAP_DEBUG_TRACE,
 463                                         LDAP_XSTRING(mdb_modrdn)
 464                                         ": no wr to newSup children\n",
 465                                         0, 0, 0 );
 466                                 rs->sr_text = "no write access to new superior's children";
 467                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 468                                 goto return_results;
 469                         }
 470
 471                         if ( is_entry_alias( np ) ) {
 472                                 /* parent is an alias, don't allow add */
 473                                 Debug( LDAP_DEBUG_TRACE,
 474                                         LDAP_XSTRING(mdb_modrdn)
 475                                         ": entry is alias\n",
 476                                         0, 0, 0 );
 477                                 rs->sr_text = "new superior is an alias";
 478                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 479                                 goto return_results;
 480                         }
 481
 482                         if ( is_entry_referral( np ) ) {
 483                                 /* parent is a referral, don't allow add */
 484                                 Debug( LDAP_DEBUG_TRACE,
 485                                         LDAP_XSTRING(mdb_modrdn)
 486                                         ": entry is referral\n",
 487                                         0, 0, 0 );
 488                                 rs->sr_text = "new superior is a referral";
 489                                 rs->sr_err = LDAP_OTHER;
 490                                 goto return_results;
 491                         }
 492
 493                 } else {
 494                         np_dn = NULL;
 495
 496                         /* no parent, modrdn entry directly under root */
 497                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 498                                 || be_isupdate( op ) ) {
 499                                 np = (Entry *)&slap_entry_root;
 500
 501                                 /* check parent for "children" acl */
 502                                 rs->sr_err = access_allowed( op, np,
 503                                         children, NULL, ACL_WADD, NULL );
 504
 505                                 np = NULL;
 506
 507                                 if ( ! rs->sr_err ) {
 508                                         switch( opinfo.boi_err ) {
 509                                         case DB_LOCK_DEADLOCK:
 510                                         case DB_LOCK_NOTGRANTED:
 511                                                 goto retry;
 512                                         }
 513
 514                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 515                                         Debug( LDAP_DEBUG_TRACE,
 516                                                 "no access to new superior\n",
 517                                                 0, 0, 0 );
 518                                         rs->sr_text =
 519                                                 "no write access to new superior's children";
 520                                         goto return_results;
 521                                 }
 522                         }
 523                 }
 524
 525                 Debug( LDAP_DEBUG_TRACE,
 526                         LDAP_XSTRING(mdb_modrdn)
 527                         ": wr to new parent's children OK\n",
 528                         0, 0, 0 );
 529
 530                 new_parent_dn = np_dn;
 531         }
 532
 533         /* Build target dn and make sure target entry doesn't exist already. */
 534         if (!new_dn.bv_val) {
 535                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 536         }
 537
 538         if (!new_ndn.bv_val) {
 539                 struct berval bv = {0, NULL};
 540                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 541                 ber_dupbv( &new_ndn, &bv );
 542                 /* FIXME: why not call dnNormalize() w/o ctx? */
 543                 op->o_tmpfree( bv.bv_val, op->o_tmpmemctx );
 544         }
 545
 546         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_modrdn) ": new ndn=%s\n",
 547                 new_ndn.bv_val, 0, 0 );
 548
 549         /* Shortcut the search */
 550         nei = neip ? neip : eip;
 551         rs->sr_err = mdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 552         if ( nei ) mdb_cache_entryinfo_unlock( nei );
 553         switch( rs->sr_err ) {
 554         case DB_LOCK_DEADLOCK:
 555         case DB_LOCK_NOTGRANTED:
 556                 goto retry;
 557         case DB_NOTFOUND:
 558                 break;
 559         case 0:
 560                 /* Allow rename to same DN */
 561                 if ( nei == ei )
 562                         break;
 563                 rs->sr_err = LDAP_ALREADY_EXISTS;
 564                 goto return_results;
 565         default:
 566                 rs->sr_err = LDAP_OTHER;
 567                 rs->sr_text = "internal error";
 568                 goto return_results;
 569         }
 570
 571         assert( op->orr_modlist != NULL );
 572
 573         if( op->o_preread ) {
 574                 if( preread_ctrl == NULL ) {
 575                         preread_ctrl = &ctrls[num_ctrls++];
 576                         ctrls[num_ctrls] = NULL;
 577                 }
 578                 if( slap_read_controls( op, rs, e,
 579                         &slap_pre_read_bv, preread_ctrl ) )
 580                 {
 581                         Debug( LDAP_DEBUG_TRACE,
 582                                 "<=- " LDAP_XSTRING(mdb_modrdn)
 583                                 ": pre-read failed!\n", 0, 0, 0 );
 584                         if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
 585                                 /* FIXME: is it correct to abort
 586                                  * operation if control fails? */
 587                                 goto return_results;
 588                         }
 589                 }
 590         }
 591
 592         /* nested transaction */
 593         rs->sr_err = TXN_BEGIN( mdb->bi_dbenv, ltid, &lt2, mdb->bi_db_opflags );
 594         rs->sr_text = NULL;
 595         if( rs->sr_err != 0 ) {
 596                 Debug( LDAP_DEBUG_TRACE,
 597                         LDAP_XSTRING(mdb_modrdn)
 598                         ": txn_begin(2) failed: %s (%d)\n",
 599                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 600                 rs->sr_err = LDAP_OTHER;
 601                 rs->sr_text = "internal error";
 602                 goto return_results;
 603         }
 604
 605         /* delete old DN */
 606         rs->sr_err = mdb_dn2id_delete( op, lt2, eip, e );
 607         if ( rs->sr_err != 0 ) {
 608                 Debug(LDAP_DEBUG_TRACE,
 609                         "<=- " LDAP_XSTRING(mdb_modrdn)
 610                         ": dn2id del failed: %s (%d)\n",
 611                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 612                 switch( rs->sr_err ) {
 613                 case DB_LOCK_DEADLOCK:
 614                 case DB_LOCK_NOTGRANTED:
 615                         goto retry;
 616                 }
 617                 rs->sr_err = LDAP_OTHER;
 618                 rs->sr_text = "DN index delete fail";
 619                 goto return_results;
 620         }
 621
 622         /* copy the entry, then override some fields */
 623         dummy = *e;
 624         dummy.e_name = new_dn;
 625         dummy.e_nname = new_ndn;
 626         dummy.e_attrs = NULL;
 627
 628         /* add new DN */
 629         rs->sr_err = mdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 630         if ( rs->sr_err != 0 ) {
 631                 Debug(LDAP_DEBUG_TRACE,
 632                         "<=- " LDAP_XSTRING(mdb_modrdn)
 633                         ": dn2id add failed: %s (%d)\n",
 634                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 635                 switch( rs->sr_err ) {
 636                 case DB_LOCK_DEADLOCK:
 637                 case DB_LOCK_NOTGRANTED:
 638                         goto retry;
 639                 }
 640                 rs->sr_err = LDAP_OTHER;
 641                 rs->sr_text = "DN index add failed";
 642                 goto return_results;
 643         }
 644
 645         dummy.e_attrs = e->e_attrs;
 646
 647         /* modify entry */
 648         rs->sr_err = mdb_modify_internal( op, lt2, op->orr_modlist, &dummy,
 649                 &rs->sr_text, textbuf, textlen );
 650         if( rs->sr_err != LDAP_SUCCESS ) {
 651                 Debug(LDAP_DEBUG_TRACE,
 652                         "<=- " LDAP_XSTRING(mdb_modrdn)
 653                         ": modify failed: %s (%d)\n",
 654                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 655                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 656                         rs->sr_err = opinfo.boi_err;
 657                 }
 658                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 659                 switch( rs->sr_err ) {
 660                 case DB_LOCK_DEADLOCK:
 661                 case DB_LOCK_NOTGRANTED:
 662                         goto retry;
 663                 }
 664                 goto return_results;
 665         }
 666
 667         /* id2entry index */
 668         rs->sr_err = mdb_id2entry_update( op->o_bd, lt2, &dummy );
 669         if ( rs->sr_err != 0 ) {
 670                 Debug(LDAP_DEBUG_TRACE,
 671                         "<=- " LDAP_XSTRING(mdb_modrdn)
 672                         ": id2entry failed: %s (%d)\n",
 673                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 674                 switch( rs->sr_err ) {
 675                 case DB_LOCK_DEADLOCK:
 676                 case DB_LOCK_NOTGRANTED:
 677                         goto retry;
 678                 }
 679                 rs->sr_err = LDAP_OTHER;
 680                 rs->sr_text = "entry update failed";
 681                 goto return_results;
 682         }
 683
 684         if ( p_ndn.bv_len != 0 ) {
 685                 parent_is_glue = is_entry_glue(p);
 686                 rs->sr_err = mdb_cache_children( op, lt2, p );
 687                 if ( rs->sr_err != DB_NOTFOUND ) {
 688                         switch( rs->sr_err ) {
 689                         case DB_LOCK_DEADLOCK:
 690                         case DB_LOCK_NOTGRANTED:
 691                                 goto retry;
 692                         case 0:
 693                                 break;
 694                         default:
 695                                 Debug(LDAP_DEBUG_ARGS,
 696                                         "<=- " LDAP_XSTRING(mdb_modrdn)
 697                                         ": has_children failed: %s (%d)\n",
 698                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 699                                 rs->sr_err = LDAP_OTHER;
 700                                 rs->sr_text = "internal error";
 701                                 goto return_results;
 702                         }
 703                         parent_is_leaf = 1;
 704                 }
 705                 mdb_unlocked_cache_return_entry_r(&mdb->bi_cache, p);
 706                 p = NULL;
 707         }
 708
 709         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 710                 rs->sr_err = LDAP_OTHER;
 711                 rs->sr_text = "txn_commit(2) failed";
 712                 goto return_results;
 713         }
 714
 715         if( op->o_postread ) {
 716                 if( postread_ctrl == NULL ) {
 717                         postread_ctrl = &ctrls[num_ctrls++];
 718                         ctrls[num_ctrls] = NULL;
 719                 }
 720                 if( slap_read_controls( op, rs, &dummy,
 721                         &slap_post_read_bv, postread_ctrl ) )
 722                 {
 723                         Debug( LDAP_DEBUG_TRACE,
 724                                 "<=- " LDAP_XSTRING(mdb_modrdn)
 725                                 ": post-read failed!\n", 0, 0, 0 );
 726                         if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
 727                                 /* FIXME: is it correct to abort
 728                                  * operation if control fails? */
 729                                 goto return_results;
 730                         }
 731                 }
 732         }
 733
 734         if( op->o_noop ) {
 735                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 736                         rs->sr_text = "txn_abort (no-op) failed";
 737                 } else {
 738                         rs->sr_err = LDAP_X_NO_OPERATION;
 739                         ltid = NULL;
 740                         /* Only free attrs if they were dup'd.  */
 741                         if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 742                         goto return_results;
 743                 }
 744
 745         } else {
 746                 rc = mdb_cache_modrdn( mdb, e, &op->orr_nnewrdn, &dummy, neip,
 747                         ltid, &lock );
 748                 switch( rc ) {
 749                 case DB_LOCK_DEADLOCK:
 750                 case DB_LOCK_NOTGRANTED:
 751                         goto retry;
 752                 }
 753                 dummy.e_attrs = NULL;
 754                 new_dn.bv_val = NULL;
 755                 new_ndn.bv_val = NULL;
 756
 757                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 758                         rs->sr_text = "txn_commit failed";
 759                 } else {
 760                         rs->sr_err = LDAP_SUCCESS;
 761                 }
 762         }
 763
 764         ltid = NULL;
 765         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 766         opinfo.boi_oe.oe_key = NULL;
 767
 768         if( rs->sr_err != LDAP_SUCCESS ) {
 769                 Debug( LDAP_DEBUG_TRACE,
 770                         LDAP_XSTRING(mdb_modrdn) ": %s : %s (%d)\n",
 771                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 772                 rs->sr_err = LDAP_OTHER;
 773
 774                 goto return_results;
 775         }
 776
 777         Debug(LDAP_DEBUG_TRACE,
 778                 LDAP_XSTRING(mdb_modrdn)
 779                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 780                 op->o_noop ? " (no-op)" : "",
 781                 dummy.e_id, op->o_req_dn.bv_val );
 782         rs->sr_text = NULL;
 783         if( num_ctrls ) rs->sr_ctrls = ctrls;
 784
 785 return_results:
 786         if ( dummy.e_attrs ) {
 787                 attrs_free( dummy.e_attrs );
 788         }
 789         send_ldap_result( op, rs );
 790
 791         if( rs->sr_err == LDAP_SUCCESS && mdb->bi_txn_cp_kbyte ) {
 792                 TXN_CHECKPOINT( mdb->bi_dbenv,
 793                         mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );
 794         }
 795
 796         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 797                 op->o_delete_glue_parent = 1;
 798         }
 799
 800 done:
 801         slap_graduate_commit_csn( op );
 802
 803         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 804         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 805
 806         /* LDAP v3 Support */
 807         if( np != NULL ) {
 808                 /* free new parent and reader lock */
 809                 mdb_unlocked_cache_return_entry_r(&mdb->bi_cache, np);
 810         }
 811
 812         if( p != NULL ) {
 813                 /* free parent and reader lock */
 814                 mdb_unlocked_cache_return_entry_r(&mdb->bi_cache, p);
 815         }
 816
 817         /* free entry */
 818         if( e != NULL ) {
 819                 mdb_unlocked_cache_return_entry_w( &mdb->bi_cache, e);
 820         }
 821
 822         if( ltid != NULL ) {
 823                 TXN_ABORT( ltid );
 824         }
 825         if ( opinfo.boi_oe.oe_key ) {
 826                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 827         }
 828
 829         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 830                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 831                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 832         }
 833         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 834                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 835                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 836         }
 837         return rs->sr_err;
 838 }