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