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 2000-2004 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 #include "external.h"
  24
  25 int
  26 bdb_modrdn( Operation   *op, SlapReply *rs )
  27 {
  28         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  29         AttributeDescription *children = slap_schema.si_ad_children;
  30         AttributeDescription *entry = slap_schema.si_ad_entry;
  31         struct berval   p_dn, p_ndn;
  32         struct berval   new_dn = {0, NULL}, new_ndn = {0, NULL};
  33         int             isroot = -1;
  34         Entry           *e = NULL;
  35         Entry           *p = NULL;
  36         EntryInfo       *ei = NULL, *eip = NULL, *nei = NULL, *neip = NULL;
  37         /* LDAP v2 supporting correct attribute handling. */
  38         LDAPRDN         new_rdn = NULL;
  39         LDAPRDN         old_rdn = NULL;
  40         char textbuf[SLAP_TEXT_BUFLEN];
  41         size_t textlen = sizeof textbuf;
  42         DB_TXN          *ltid = NULL, *lt2;
  43         struct bdb_op_info opinfo;
  44         Entry dummy = {0};
  45
  46         ID                      id;
  47
  48         Entry           *np = NULL;                     /* newSuperior Entry */
  49         struct berval   *np_dn = NULL;                  /* newSuperior dn */
  50         struct berval   *np_ndn = NULL;                 /* newSuperior ndn */
  51         struct berval   *new_parent_dn = NULL;  /* np_dn, p_dn, or NULL */
  52
  53         /* Used to interface with bdb_modify_internal() */
  54         Modifications   *mod = NULL;            /* Used to delete old rdn */
  55
  56         int             manageDSAit = get_manageDSAit( op );
  57
  58         u_int32_t       locker = 0;
  59         DB_LOCK         lock, plock, nplock;
  60
  61         int             num_retries = 0;
  62
  63         LDAPControl **preread_ctrl = NULL;
  64         LDAPControl **postread_ctrl = NULL;
  65         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  66         int num_ctrls = 0;
  67
  68         Operation *ps_list;
  69         struct psid_entry *pm_list, *pm_prev;
  70         int     rc;
  71         EntryInfo       *suffix_ei;
  72         Entry           *ctxcsn_e;
  73         int                     ctxcsn_added = 0;
  74
  75         int parent_is_glue = 0;
  76         int parent_is_leaf = 0;
  77
  78         ctrls[num_ctrls] = NULL;
  79
  80         Debug( LDAP_DEBUG_TRACE, "==>bdb_modrdn(%s,%s,%s)\n",
  81                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  82                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  83
  84         if( 0 ) {
  85 retry:  /* transaction retry */
  86                 if ( dummy.e_attrs ) {
  87                         attrs_free( dummy.e_attrs );
  88                         dummy.e_attrs = NULL;
  89                 }
  90                 if (e != NULL) {
  91                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
  92                         e = NULL;
  93                 }
  94                 if (p != NULL) {
  95                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
  96                         p = NULL;
  97                 }
  98                 if (np != NULL) {
  99                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 100                         np = NULL;
 101                 }
 102                 Debug( LDAP_DEBUG_TRACE, "==>bdb_modrdn: retrying...\n", 0, 0, 0 );
 103                 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 104                 while ( pm_list != NULL ) {
 105                         LDAP_LIST_REMOVE ( pm_list, ps_link );
 106                         pm_prev = pm_list;
 107                         pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 108                         ch_free( pm_prev );
 109                 }
 110
 111                 rs->sr_err = TXN_ABORT( ltid );
 112                 ltid = NULL;
 113                 op->o_private = NULL;
 114                 op->o_do_not_cache = opinfo.boi_acl_cache;
 115                 if( rs->sr_err != 0 ) {
 116                         rs->sr_err = LDAP_OTHER;
 117                         rs->sr_text = "internal error";
 118                         goto return_results;
 119                 }
 120                 parent_is_glue = 0;
 121                 parent_is_leaf = 0;
 122                 ldap_pvt_thread_yield();
 123                 bdb_trans_backoff( ++num_retries );
 124         }
 125
 126         /* begin transaction */
 127         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 128                 bdb->bi_db_opflags );
 129         rs->sr_text = NULL;
 130         if( rs->sr_err != 0 ) {
 131                 Debug( LDAP_DEBUG_TRACE,
 132                         "bdb_delete: txn_begin failed: %s (%d)\n",
 133                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 134                 rs->sr_err = LDAP_OTHER;
 135                 rs->sr_text = "internal error";
 136                 goto return_results;
 137         }
 138
 139         locker = TXN_ID ( ltid );
 140
 141         opinfo.boi_bdb = op->o_bd;
 142         opinfo.boi_txn = ltid;
 143         opinfo.boi_locker = locker;
 144         opinfo.boi_err = 0;
 145         opinfo.boi_acl_cache = op->o_do_not_cache;
 146         op->o_private = &opinfo;
 147
 148         /* get entry */
 149         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 150                 locker, &lock );
 151
 152         switch( rs->sr_err ) {
 153         case 0:
 154         case DB_NOTFOUND:
 155                 break;
 156         case DB_LOCK_DEADLOCK:
 157         case DB_LOCK_NOTGRANTED:
 158                 goto retry;
 159         case LDAP_BUSY:
 160                 rs->sr_text = "ldap server busy";
 161                 goto return_results;
 162         default:
 163                 rs->sr_err = LDAP_OTHER;
 164                 rs->sr_text = "internal error";
 165                 goto return_results;
 166         }
 167
 168         e = ei->bei_e;
 169         /* FIXME: dn2entry() should return non-glue entry */
 170         if (( rs->sr_err == DB_NOTFOUND ) ||
 171                 ( !manageDSAit && e && is_entry_glue( e )))
 172         {
 173                 if( e != NULL ) {
 174                         rs->sr_matched = ch_strdup( e->e_dn );
 175                         rs->sr_ref = is_entry_referral( e )
 176                                 ? get_entry_referrals( op, e )
 177                                 : NULL;
 178                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 179                         e = NULL;
 180
 181                 } else {
 182                         BerVarray deref = NULL;
 183                         if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 184                                 syncinfo_t *si;
 185                                 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
 186                                         struct berval tmpbv;
 187                                         ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
 188                                         ber_bvarray_add( &deref, &tmpbv );
 189                 }
 190                         } else {
 191                                 deref = default_referral;
 192                         }
 193                         rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
 194                                 LDAP_SCOPE_DEFAULT );
 195                 }
 196
 197                 rs->sr_err = LDAP_REFERRAL;
 198                 send_ldap_result( op, rs );
 199
 200                 ber_bvarray_free( rs->sr_ref );
 201                 free( (char *)rs->sr_matched );
 202                 rs->sr_ref = NULL;
 203                 rs->sr_matched = NULL;
 204
 205                 goto done;
 206         }
 207
 208         if ( get_assert( op ) &&
 209                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 210         {
 211                 rs->sr_err = LDAP_ASSERTION_FAILED;
 212                 goto return_results;
 213         }
 214
 215         /* check write on old entry */
 216         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 217         if ( ! rs->sr_err ) {
 218                 switch( opinfo.boi_err ) {
 219                 case DB_LOCK_DEADLOCK:
 220                 case DB_LOCK_NOTGRANTED:
 221                         goto retry;
 222                 }
 223
 224                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 225                         0, 0 );
 226                 rs->sr_text = "no write access to old entry";
 227                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 228                 goto return_results;
 229         }
 230
 231 #ifndef BDB_HIER
 232         rs->sr_err = bdb_cache_children( op, ltid, e );
 233         if ( rs->sr_err != DB_NOTFOUND ) {
 234                 switch( rs->sr_err ) {
 235                 case DB_LOCK_DEADLOCK:
 236                 case DB_LOCK_NOTGRANTED:
 237                         goto retry;
 238                 case 0:
 239                         Debug(LDAP_DEBUG_ARGS,
 240                                 "<=- bdb_modrdn: non-leaf %s\n",
 241                                 op->o_req_dn.bv_val, 0, 0);
 242                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 243                         rs->sr_text = "subtree rename not supported";
 244                         break;
 245                 default:
 246                         Debug(LDAP_DEBUG_ARGS,
 247                                 "<=- bdb_modrdn: has_children failed: %s (%d)\n",
 248                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 249                         rs->sr_err = LDAP_OTHER;
 250                         rs->sr_text = "internal error";
 251                 }
 252                 goto return_results;
 253         }
 254         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 255 #endif
 256
 257         if (!manageDSAit && is_entry_referral( e ) ) {
 258                 /* parent is a referral, don't allow add */
 259                 rs->sr_ref = get_entry_referrals( op, e );
 260
 261                 Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: entry %s is referral\n",
 262                         e->e_dn, 0, 0 );
 263
 264                 rs->sr_err = LDAP_REFERRAL,
 265                 rs->sr_matched = e->e_name.bv_val;
 266                 send_ldap_result( op, rs );
 267
 268                 ber_bvarray_free( rs->sr_ref );
 269                 rs->sr_ref = NULL;
 270                 rs->sr_matched = NULL;
 271                 goto done;
 272         }
 273
 274         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 275                 p_ndn = slap_empty_bv;
 276         } else {
 277                 dnParent( &e->e_nname, &p_ndn );
 278         }
 279         np_ndn = &p_ndn;
 280         if ( p_ndn.bv_len != 0 ) {
 281                 /* Make sure parent entry exist and we can write its
 282                  * children.
 283                  */
 284                 eip = ei->bei_parent;
 285                 rs->sr_err = bdb_cache_find_id( op, ltid,
 286                         eip->bei_id, &eip, 0, locker, &plock );
 287
 288                 switch( rs->sr_err ) {
 289                 case 0:
 290                 case DB_NOTFOUND:
 291                         break;
 292                 case DB_LOCK_DEADLOCK:
 293                 case DB_LOCK_NOTGRANTED:
 294                         goto retry;
 295                 case LDAP_BUSY:
 296                         rs->sr_text = "ldap server busy";
 297                         goto return_results;
 298                 default:
 299                         rs->sr_err = LDAP_OTHER;
 300                         rs->sr_text = "internal error";
 301                         goto return_results;
 302                 }
 303
 304                 p = eip->bei_e;
 305                 if( p == NULL) {
 306                         Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: parent does not exist\n",
 307                                 0, 0, 0);
 308                         rs->sr_err = LDAP_OTHER;
 309                         rs->sr_text = "old entry's parent does not exist";
 310                         goto return_results;
 311                 }
 312
 313                 /* check parent for "children" acl */
 314                 rs->sr_err = access_allowed( op, p,
 315                         children, NULL, ACL_WRITE, NULL );
 316
 317                 if ( ! rs->sr_err ) {
 318                         switch( opinfo.boi_err ) {
 319                         case DB_LOCK_DEADLOCK:
 320                         case DB_LOCK_NOTGRANTED:
 321                                 goto retry;
 322                         }
 323
 324                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 325                         Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 326                                 0, 0 );
 327                         rs->sr_text = "no write access to old parent's children";
 328                         goto return_results;
 329                 }
 330
 331                 Debug( LDAP_DEBUG_TRACE,
 332                         "bdb_modrdn: wr to children of entry %s OK\n",
 333                         p_ndn.bv_val, 0, 0 );
 334
 335                 if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 336                         p_dn = slap_empty_bv;
 337                 } else {
 338                         dnParent( &e->e_name, &p_dn );
 339                 }
 340
 341                 Debug( LDAP_DEBUG_TRACE,
 342                         "bdb_modrdn: parent dn=%s\n",
 343                         p_dn.bv_val, 0, 0 );
 344
 345         } else {
 346                 /* no parent, modrdn entry directly under root */
 347                 isroot = be_isroot( op );
 348                 if ( ! isroot ) {
 349                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 350                                 || be_shadow_update( op ) ) {
 351
 352                                 p = (Entry *)&slap_entry_root;
 353
 354                                 /* check parent for "children" acl */
 355                                 rs->sr_err = access_allowed( op, p,
 356                                         children, NULL, ACL_WRITE, NULL );
 357
 358                                 p = NULL;
 359
 360                                 if ( ! rs->sr_err ) {
 361                                         switch( opinfo.boi_err ) {
 362                                         case DB_LOCK_DEADLOCK:
 363                                         case DB_LOCK_NOTGRANTED:
 364                                                 goto retry;
 365                                         }
 366
 367                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 368                                         Debug( LDAP_DEBUG_TRACE,
 369                                                 "no access to parent\n",
 370                                                 0, 0, 0 );
 371                                         rs->sr_text = "no write access to old parent";
 372                                         goto return_results;
 373                                 }
 374
 375                                 Debug( LDAP_DEBUG_TRACE,
 376                                         "bdb_modrdn: wr to children of entry \"\" OK\n",
 377                                         0, 0, 0 );
 378
 379                                 p_dn.bv_val = "";
 380                                 p_dn.bv_len = 0;
 381
 382                                 Debug( LDAP_DEBUG_TRACE,
 383                                         "bdb_modrdn: parent dn=\"\"\n",
 384                                         0, 0, 0 );
 385
 386                         } else {
 387                                 Debug( LDAP_DEBUG_TRACE,
 388                                         "bdb_modrdn: no parent, not root "
 389                                         "& \"\" is not suffix\n",
 390                                         0, 0, 0);
 391                                 rs->sr_text = "no write access to old parent";
 392                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 393                                 goto return_results;
 394                         }
 395                 }
 396         }
 397
 398         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 399
 400         if ( op->oq_modrdn.rs_newSup != NULL ) {
 401                 Debug( LDAP_DEBUG_TRACE,
 402                         "bdb_modrdn: new parent \"%s\" requested...\n",
 403                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 404
 405                 /*  newSuperior == oldParent? */
 406                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 407                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 408                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 409                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 410                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 411                 }
 412         }
 413
 414         if ( op->oq_modrdn.rs_newSup != NULL ) {
 415                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 416                         np_dn = op->oq_modrdn.rs_newSup;
 417                         np_ndn = op->oq_modrdn.rs_nnewSup;
 418
 419                         /* newSuperior == oldParent?, if so ==> ERROR */
 420                         /* newSuperior == entry being moved?, if so ==> ERROR */
 421                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 422
 423                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 424                                 &neip, 0, locker, &nplock );
 425
 426                         switch( rs->sr_err ) {
 427                         case 0: np = neip->bei_e;
 428                         case DB_NOTFOUND:
 429                                 break;
 430                         case DB_LOCK_DEADLOCK:
 431                         case DB_LOCK_NOTGRANTED:
 432                                 goto retry;
 433                         case LDAP_BUSY:
 434                                 rs->sr_text = "ldap server busy";
 435                                 goto return_results;
 436                         default:
 437                                 rs->sr_err = LDAP_OTHER;
 438                                 rs->sr_text = "internal error";
 439                                 goto return_results;
 440                         }
 441
 442                         if( np == NULL) {
 443                                 Debug( LDAP_DEBUG_TRACE,
 444                                         "bdb_modrdn: newSup(ndn=%s) not here!\n",
 445                                         np_ndn->bv_val, 0, 0);
 446                                 rs->sr_text = "new superior not found";
 447                                 rs->sr_err = LDAP_OTHER;
 448                                 goto return_results;
 449                         }
 450
 451                         Debug( LDAP_DEBUG_TRACE,
 452                                 "bdb_modrdn: wr to new parent OK np=%p, id=%ld\n",
 453                                 (void *) np, (long) np->e_id, 0 );
 454
 455                         /* check newSuperior for "children" acl */
 456                         rs->sr_err = access_allowed( op, np, children,
 457                                 NULL, ACL_WRITE, NULL );
 458
 459                         if( ! rs->sr_err ) {
 460                                 switch( opinfo.boi_err ) {
 461                                 case DB_LOCK_DEADLOCK:
 462                                 case DB_LOCK_NOTGRANTED:
 463                                         goto retry;
 464                                 }
 465
 466                                 Debug( LDAP_DEBUG_TRACE,
 467                                         "bdb_modrdn: no wr to newSup children\n",
 468                                         0, 0, 0 );
 469                                 rs->sr_text = "no write access to new superior's children";
 470                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 471                                 goto return_results;
 472                         }
 473
 474 #ifdef BDB_ALIASES
 475                         if ( is_entry_alias( np ) ) {
 476                                 /* parent is an alias, don't allow add */
 477                                 Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: entry is alias\n",
 478                                         0, 0, 0 );
 479                                 rs->sr_text = "new superior is an alias";
 480                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 481                                 goto return_results;
 482                         }
 483 #endif
 484
 485                         if ( is_entry_referral( np ) ) {
 486                                 /* parent is a referral, don't allow add */
 487                                 Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: entry is referral\n",
 488                                         0, 0, 0 );
 489                                 rs->sr_text = "new superior is a referral";
 490                                 rs->sr_err = LDAP_OTHER;
 491                                 goto return_results;
 492                         }
 493
 494                 } else {
 495                         if ( isroot == -1 ) {
 496                                 isroot = be_isroot( op );
 497                         }
 498
 499                         np_dn = NULL;
 500
 501                         /* no parent, modrdn entry directly under root */
 502                         if ( ! isroot ) {
 503                                 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 504                                         || be_isupdate( op ) ) {
 505                                         np = (Entry *)&slap_entry_root;
 506
 507                                         /* check parent for "children" acl */
 508                                         rs->sr_err = access_allowed( op, np,
 509                                                 children, NULL, ACL_WRITE, NULL );
 510
 511                                         np = NULL;
 512
 513                                         if ( ! rs->sr_err ) {
 514                                                 switch( opinfo.boi_err ) {
 515                                                 case DB_LOCK_DEADLOCK:
 516                                                 case DB_LOCK_NOTGRANTED:
 517                                                         goto retry;
 518                                                 }
 519
 520                                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 521                                                 Debug( LDAP_DEBUG_TRACE,
 522                                                         "no access to new superior\n",
 523                                                         0, 0, 0 );
 524                                                 rs->sr_text =
 525                                                         "no write access to new superior's children";
 526                                                 goto return_results;
 527                                         }
 528
 529                                         Debug( LDAP_DEBUG_TRACE,
 530                                                 "bdb_modrdn: wr to children of entry \"\" OK\n",
 531                                                 0, 0, 0 );
 532
 533                                 } else {
 534                                         Debug( LDAP_DEBUG_TRACE,
 535                                                 "bdb_modrdn: new superior=\"\", not root "
 536                                                 "& \"\" is not suffix\n",
 537                                                 0, 0, 0);
 538                                         rs->sr_text = "no write access to new superior's children";
 539                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 540                                         goto return_results;
 541                                 }
 542                         }
 543
 544                         Debug( LDAP_DEBUG_TRACE,
 545                                 "bdb_modrdn: new superior=\"\"\n",
 546                                 0, 0, 0 );
 547                 }
 548
 549                 Debug( LDAP_DEBUG_TRACE,
 550                         "bdb_modrdn: wr to new parent's children OK\n",
 551                         0, 0, 0 );
 552
 553                 new_parent_dn = np_dn;
 554         }
 555
 556         /* Build target dn and make sure target entry doesn't exist already. */
 557         if (!new_dn.bv_val) {
 558                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 559         }
 560
 561         if (!new_ndn.bv_val) {
 562                 struct berval bv = {0, NULL};
 563                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 564                 ber_dupbv( &new_ndn, &bv );
 565         }
 566
 567         Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: new ndn=%s\n",
 568                 new_ndn.bv_val, 0, 0 );
 569
 570         /* Shortcut the search */
 571         nei = neip ? neip : eip;
 572         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 573         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 574         switch( rs->sr_err ) {
 575         case DB_LOCK_DEADLOCK:
 576         case DB_LOCK_NOTGRANTED:
 577                 goto retry;
 578         case DB_NOTFOUND:
 579                 break;
 580         case 0:
 581                 rs->sr_err = LDAP_ALREADY_EXISTS;
 582                 goto return_results;
 583         default:
 584                 rs->sr_err = LDAP_OTHER;
 585                 rs->sr_text = "internal error";
 586                 goto return_results;
 587         }
 588
 589         /* Get attribute type and attribute value of our new rdn, we will
 590          * need to add that to our new entry
 591          */
 592         if ( !new_rdn && ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
 593                 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 594         {
 595                 Debug( LDAP_DEBUG_TRACE,
 596                         "bdb_modrdn: can't figure out "
 597                         "type(s)/values(s) of newrdn\n",
 598                         0, 0, 0 );
 599                 rs->sr_err = LDAP_INVALID_DN_SYNTAX;
 600                 rs->sr_text = "unknown type(s) used in RDN";
 601                 goto return_results;
 602         }
 603
 604         Debug( LDAP_DEBUG_TRACE,
 605                 "bdb_modrdn: new_rdn_type=\"%s\", new_rdn_val=\"%s\"\n",
 606                 new_rdn[ 0 ]->la_attr.bv_val, new_rdn[ 0 ]->la_value.bv_val, 0 );
 607
 608         if ( op->oq_modrdn.rs_deleteoldrdn ) {
 609                 if ( !old_rdn && ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
 610                         (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 611                 {
 612                         Debug( LDAP_DEBUG_TRACE,
 613                                 "bdb_modrdn: can't figure out "
 614                                 "the old_rdn type(s)/value(s)\n",
 615                                 0, 0, 0 );
 616                         rs->sr_err = LDAP_OTHER;
 617                         rs->sr_text = "cannot parse RDN from old DN";
 618                         goto return_results;
 619                 }
 620         }
 621
 622         /* prepare modlist of modifications from old/new rdn */
 623         if (!mod) {
 624                 rs->sr_err = slap_modrdn2mods( op, rs, e, old_rdn, new_rdn, &mod );
 625                 if ( rs->sr_err != LDAP_SUCCESS ) {
 626                         goto return_results;
 627                 }
 628         }
 629
 630         if( op->o_preread ) {
 631                 if( preread_ctrl == NULL ) {
 632                         preread_ctrl = &ctrls[num_ctrls++];
 633                         ctrls[num_ctrls] = NULL;
 634                 }
 635                 if( slap_read_controls( op, rs, e,
 636                         &slap_pre_read_bv, preread_ctrl ) )
 637                 {
 638                         Debug( LDAP_DEBUG_TRACE,
 639                                 "<=- bdb_modrdn: post-read failed!\n", 0, 0, 0 );
 640                         goto return_results;
 641                 }
 642         }
 643
 644         /* nested transaction */
 645         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 646         rs->sr_text = NULL;
 647         if( rs->sr_err != 0 ) {
 648                 Debug( LDAP_DEBUG_TRACE,
 649                         "bdb_modrdn: txn_begin(2) failed: %s (%d)\n",
 650                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 651                 rs->sr_err = LDAP_OTHER;
 652                 rs->sr_text = "internal error";
 653                 goto return_results;
 654         }
 655
 656         /* delete old DN */
 657         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 658         if ( rs->sr_err != 0 ) {
 659                 Debug(LDAP_DEBUG_TRACE,
 660                         "<=- bdb_modrdn: dn2id del failed: %s (%d)\n",
 661                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 662                 switch( rs->sr_err ) {
 663                 case DB_LOCK_DEADLOCK:
 664                 case DB_LOCK_NOTGRANTED:
 665                         goto retry;
 666                 }
 667                 rs->sr_err = LDAP_OTHER;
 668                 rs->sr_text = "DN index delete fail";
 669                 goto return_results;
 670         }
 671
 672         /* copy the entry, then override some fields */
 673         dummy = *e;
 674         dummy.e_name = new_dn;
 675         dummy.e_nname = new_ndn;
 676         dummy.e_attrs = NULL;
 677
 678         /* add new DN */
 679         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 680         if ( rs->sr_err != 0 ) {
 681                 Debug(LDAP_DEBUG_TRACE,
 682                         "<=- bdb_modrdn: dn2id add failed: %s (%d)\n",
 683                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 684                 switch( rs->sr_err ) {
 685                 case DB_LOCK_DEADLOCK:
 686                 case DB_LOCK_NOTGRANTED:
 687                         goto retry;
 688                 }
 689                 rs->sr_err = LDAP_OTHER;
 690                 rs->sr_text = "DN index add failed";
 691                 goto return_results;
 692         }
 693
 694         dummy.e_attrs = e->e_attrs;
 695
 696         if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop && !op->o_no_psearch ) {
 697                 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
 698                 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 699                         rc = bdb_psearch( op, rs, ps_list, &dummy, LDAP_PSEARCH_BY_PREMODIFY );
 700                         if ( rc ) {
 701                                 Debug( LDAP_DEBUG_TRACE,
 702                                         "bdb_modrdn: persistent search failed (%d,%d)\n",
 703                                         rc, rs->sr_err, 0 );
 704                         }
 705                 }
 706                 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
 707         }
 708
 709
 710         /* modify entry */
 711         rs->sr_err = bdb_modify_internal( op, lt2, &mod[0], &dummy,
 712                 &rs->sr_text, textbuf, textlen );
 713         if( rs->sr_err != LDAP_SUCCESS ) {
 714                 Debug(LDAP_DEBUG_TRACE,
 715                         "<=- bdb_modrdn: modify failed: %s (%d)\n",
 716                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 717                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 718                         rs->sr_err = opinfo.boi_err;
 719                 }
 720                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 721                 switch( rs->sr_err ) {
 722                 case DB_LOCK_DEADLOCK:
 723                 case DB_LOCK_NOTGRANTED:
 724                         goto retry;
 725                 }
 726                 goto return_results;
 727         }
 728
 729         /* id2entry index */
 730         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 731         if ( rs->sr_err != 0 ) {
 732                 Debug(LDAP_DEBUG_TRACE,
 733                         "<=- bdb_modrdn: id2entry failed: %s (%d)\n",
 734                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 735                 switch( rs->sr_err ) {
 736                 case DB_LOCK_DEADLOCK:
 737                 case DB_LOCK_NOTGRANTED:
 738                         goto retry;
 739                 }
 740                 rs->sr_err = LDAP_OTHER;
 741                 rs->sr_text = "entry update failed";
 742                 goto return_results;
 743         }
 744
 745         if ( p_ndn.bv_len != 0 ) {
 746                 parent_is_glue = is_entry_glue(p);
 747                 rs->sr_err = bdb_cache_children( op, lt2, p );
 748                 if ( rs->sr_err != DB_NOTFOUND ) {
 749                         switch( rs->sr_err ) {
 750                         case DB_LOCK_DEADLOCK:
 751                         case DB_LOCK_NOTGRANTED:
 752                                 goto retry;
 753                         case 0:
 754                                 break;
 755                         default:
 756                                 Debug(LDAP_DEBUG_ARGS,
 757                                         "<=- bdb_modrdn: has_children failed: %s (%d)\n",
 758                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 759                                 rs->sr_err = LDAP_OTHER;
 760                                 rs->sr_text = "internal error";
 761                                 goto return_results;
 762                         }
 763                         parent_is_leaf = 1;
 764                 }
 765                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 766                 p = NULL;
 767         }
 768
 769         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 770                 rs->sr_err = LDAP_OTHER;
 771                 rs->sr_text = "txn_commit(2) failed";
 772                 goto return_results;
 773         }
 774
 775         if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 776                 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
 777                         &ctxcsn_e, &ctxcsn_added, locker );
 778                 switch ( rc ) {
 779                 case BDB_CSN_ABORT :
 780                         goto return_results;
 781                 case BDB_CSN_RETRY :
 782                         goto retry;
 783                 }
 784         }
 785
 786         if( op->o_postread ) {
 787                 if( postread_ctrl == NULL ) {
 788                         postread_ctrl = &ctrls[num_ctrls++];
 789                         ctrls[num_ctrls] = NULL;
 790                 }
 791                 if( slap_read_controls( op, rs, &dummy,
 792                         &slap_post_read_bv, postread_ctrl ) )
 793                 {
 794                         Debug( LDAP_DEBUG_TRACE,
 795                                 "<=- bdb_modrdn: post-read failed!\n", 0, 0, 0 );
 796                         goto return_results;
 797                 }
 798         }
 799
 800         if( op->o_noop ) {
 801                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 802                         rs->sr_text = "txn_abort (no-op) failed";
 803                 } else {
 804                         rs->sr_err = LDAP_SUCCESS;
 805                         goto return_results;
 806                 }
 807
 808         } else {
 809                 rc = bdb_cache_modrdn( e, &op->orr_nnewrdn, &dummy, neip,
 810                         bdb->bi_dbenv, locker, &lock );
 811                 switch( rc ) {
 812                 case DB_LOCK_DEADLOCK:
 813                 case DB_LOCK_NOTGRANTED:
 814                         goto retry;
 815                 }
 816                 dummy.e_attrs = NULL;
 817                 new_dn.bv_val = NULL;
 818                 new_ndn.bv_val = NULL;
 819
 820                 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 821                         if ( ctxcsn_added ) {
 822                                 bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
 823                                         (struct berval *)&slap_ldapsync_cn_bv, locker );
 824                         }
 825                 }
 826
 827                 if ( rs->sr_err == LDAP_SUCCESS ) {
 828                         /* Loop through in-scope entries for each psearch spec */
 829                         ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
 830                         LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 831                                 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_MODIFY );
 832                                 if ( rc ) {
 833                                         Debug( LDAP_DEBUG_TRACE,
 834                                                 "bdb_modrdn: persistent search failed (%d,%d)\n",
 835                                                 rc, rs->sr_err, 0 );
 836                         }
 837                         }
 838                         pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 839                         while ( pm_list != NULL ) {
 840                                 rc = bdb_psearch(op, rs, pm_list->ps_op,
 841                                                         e, LDAP_PSEARCH_BY_SCOPEOUT);
 842                                 if ( rc ) {
 843                                         Debug( LDAP_DEBUG_TRACE,
 844                                                 "bdb_modrdn: persistent search failed (%d,%d)\n",
 845                                                 rc, rs->sr_err, 0 );
 846                                 }
 847                                 pm_prev = pm_list;
 848                                 LDAP_LIST_REMOVE ( pm_list, ps_link );
 849                                 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 850                                 ch_free( pm_prev );
 851                         }
 852                         ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
 853                 }
 854
 855                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 856                         rs->sr_text = "txn_commit failed";
 857                 } else {
 858                         rs->sr_err = LDAP_SUCCESS;
 859                 }
 860         }
 861
 862         ltid = NULL;
 863         op->o_private = NULL;
 864
 865         if( rs->sr_err != LDAP_SUCCESS ) {
 866                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s : %s (%d)\n",
 867                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 868                 rs->sr_err = LDAP_OTHER;
 869
 870                 goto return_results;
 871         }
 872
 873         Debug(LDAP_DEBUG_TRACE,
 874                 "bdb_modrdn: rdn modified%s id=%08lx dn=\"%s\"\n",
 875                 op->o_noop ? " (no-op)" : "",
 876                 e->e_id, e->e_dn );
 877         rs->sr_text = NULL;
 878         if( num_ctrls ) rs->sr_ctrls = ctrls;
 879
 880 return_results:
 881         if ( dummy.e_attrs ) {
 882                 attrs_free( dummy.e_attrs );
 883         }
 884         send_ldap_result( op, rs );
 885
 886         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 887                 ldap_pvt_thread_yield();
 888                 TXN_CHECKPOINT( bdb->bi_dbenv,
 889                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 890         }
 891
 892         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 893                 op->o_delete_glue_parent = 1;
 894         }
 895
 896 done:
 897         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 898         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 899
 900         /* LDAP v2 supporting correct attribute handling. */
 901         if ( new_rdn != NULL ) {
 902                 ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
 903         }
 904         if ( old_rdn != NULL ) {
 905                 ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
 906         }
 907         if( mod != NULL ) {
 908                 Modifications *tmp;
 909                 for (; mod; mod=tmp ) {
 910                         tmp = mod->sml_next;
 911                         /* slap_modrdn2mods does things one way,
 912                          * slap_mods_opattrs does it differently
 913                          */
 914                         if ( mod->sml_op != SLAP_MOD_SOFTADD &&
 915                                 mod->sml_op != LDAP_MOD_DELETE ) break;
 916                         if ( mod->sml_nvalues ) free( mod->sml_nvalues[0].bv_val );
 917                         free( mod );
 918                 }
 919                 slap_mods_free( mod );
 920         }
 921
 922         /* LDAP v3 Support */
 923         if( np != NULL ) {
 924                 /* free new parent and reader lock */
 925                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 926         }
 927
 928         if( p != NULL ) {
 929                 /* free parent and reader lock */
 930                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 931         }
 932
 933         /* free entry */
 934         if( e != NULL ) {
 935                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 936         }
 937
 938         if( ltid != NULL ) {
 939                 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 940                 while ( pm_list != NULL ) {
 941                         LDAP_LIST_REMOVE ( pm_list, ps_link );
 942                         pm_prev = pm_list;
 943                         pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 944                         ch_free( pm_prev );
 945                 }
 946                 TXN_ABORT( ltid );
 947                 op->o_private = NULL;
 948         }
 949
 950         if( preread_ctrl != NULL ) {
 951                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
 952                 slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );
 953         }
 954         if( postread_ctrl != NULL ) {
 955                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
 956                 slap_sl_free( *postread_ctrl, &op->o_tmpmemctx );
 957         }
 958         return rs->sr_err;
 959 }