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 2000-2014 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         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         Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn) "(%s,%s,%s)\n",
  64                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  65                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  66
  67 #ifdef LDAP_X_TXN
  68         if( op->o_txnSpec && txn_preop( op, rs ))
  69                 return rs->sr_err;
  70 #endif
  71
  72         ctrls[num_ctrls] = NULL;
  73
  74         slap_mods_opattrs( op, &op->orr_modlist, 1 );
  75
  76         if( 0 ) {
  77 retry:  /* transaction retry */
  78                 if ( dummy.e_attrs ) {
  79                         attrs_free( dummy.e_attrs );
  80                         dummy.e_attrs = NULL;
  81                 }
  82                 if (e != NULL) {
  83                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
  84                         e = NULL;
  85                 }
  86                 if (p != NULL) {
  87                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
  88                         p = NULL;
  89                 }
  90                 if (np != NULL) {
  91                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
  92                         np = NULL;
  93                 }
  94                 Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn)
  95                                 ": retrying...\n", 0, 0, 0 );
  96
  97                 rs->sr_err = TXN_ABORT( ltid );
  98                 ltid = NULL;
  99                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 100                 opinfo.boi_oe.oe_key = NULL;
 101                 op->o_do_not_cache = opinfo.boi_acl_cache;
 102                 if( rs->sr_err != 0 ) {
 103                         rs->sr_err = LDAP_OTHER;
 104                         rs->sr_text = "internal error";
 105                         goto return_results;
 106                 }
 107                 if ( op->o_abandon ) {
 108                         rs->sr_err = SLAPD_ABANDON;
 109                         goto return_results;
 110                 }
 111                 parent_is_glue = 0;
 112                 parent_is_leaf = 0;
 113                 bdb_trans_backoff( ++num_retries );
 114         }
 115
 116         /* begin transaction */
 117         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 118                 bdb->bi_db_opflags );
 119         rs->sr_text = NULL;
 120         if( rs->sr_err != 0 ) {
 121                 Debug( LDAP_DEBUG_TRACE,
 122                         LDAP_XSTRING(bdb_modrdn) ": txn_begin failed: "
 123                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 124                 rs->sr_err = LDAP_OTHER;
 125                 rs->sr_text = "internal error";
 126                 goto return_results;
 127         }
 128         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": txn1 id: %x\n",
 129                 ltid->id(ltid), 0, 0 );
 130
 131         opinfo.boi_oe.oe_key = bdb;
 132         opinfo.boi_txn = ltid;
 133         opinfo.boi_err = 0;
 134         opinfo.boi_acl_cache = op->o_do_not_cache;
 135         LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
 136
 137         /* get entry */
 138         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 139                 &lock );
 140
 141         switch( rs->sr_err ) {
 142         case 0:
 143         case DB_NOTFOUND:
 144                 break;
 145         case DB_LOCK_DEADLOCK:
 146         case DB_LOCK_NOTGRANTED:
 147                 goto retry;
 148         case LDAP_BUSY:
 149                 rs->sr_text = "ldap server busy";
 150                 goto return_results;
 151         default:
 152                 rs->sr_err = LDAP_OTHER;
 153                 rs->sr_text = "internal error";
 154                 goto return_results;
 155         }
 156
 157         e = ei->bei_e;
 158         /* FIXME: dn2entry() should return non-glue entry */
 159         if (( rs->sr_err == DB_NOTFOUND ) ||
 160                 ( !manageDSAit && e && is_entry_glue( e )))
 161         {
 162                 if( e != NULL ) {
 163                         rs->sr_matched = ch_strdup( e->e_dn );
 164                         rs->sr_ref = is_entry_referral( e )
 165                                 ? get_entry_referrals( op, e )
 166                                 : NULL;
 167                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 168                         e = NULL;
 169
 170                 } else {
 171                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 172                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 173                 }
 174
 175                 rs->sr_err = LDAP_REFERRAL;
 176                 send_ldap_result( op, rs );
 177
 178                 ber_bvarray_free( rs->sr_ref );
 179                 free( (char *)rs->sr_matched );
 180                 rs->sr_ref = NULL;
 181                 rs->sr_matched = NULL;
 182
 183                 goto done;
 184         }
 185
 186         if ( get_assert( op ) &&
 187                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 188         {
 189                 rs->sr_err = LDAP_ASSERTION_FAILED;
 190                 goto return_results;
 191         }
 192
 193         /* check write on old entry */
 194         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 195         if ( ! rs->sr_err ) {
 196                 switch( opinfo.boi_err ) {
 197                 case DB_LOCK_DEADLOCK:
 198                 case DB_LOCK_NOTGRANTED:
 199                         goto retry;
 200                 }
 201
 202                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 203                         0, 0 );
 204                 rs->sr_text = "no write access to old entry";
 205                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 206                 goto return_results;
 207         }
 208
 209 #ifndef BDB_HIER
 210         rs->sr_err = bdb_cache_children( op, ltid, e );
 211         if ( rs->sr_err != DB_NOTFOUND ) {
 212                 switch( rs->sr_err ) {
 213                 case DB_LOCK_DEADLOCK:
 214                 case DB_LOCK_NOTGRANTED:
 215                         goto retry;
 216                 case 0:
 217                         Debug(LDAP_DEBUG_ARGS,
 218                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 219                                 ": non-leaf %s\n",
 220                                 op->o_req_dn.bv_val, 0, 0);
 221                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 222                         rs->sr_text = "subtree rename not supported";
 223                         break;
 224                 default:
 225                         Debug(LDAP_DEBUG_ARGS,
 226                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 227                                 ": has_children failed: %s (%d)\n",
 228                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 229                         rs->sr_err = LDAP_OTHER;
 230                         rs->sr_text = "internal error";
 231                 }
 232                 goto return_results;
 233         }
 234         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 235 #endif
 236
 237         if (!manageDSAit && is_entry_referral( e ) ) {
 238                 /* parent is a referral, don't allow add */
 239                 rs->sr_ref = get_entry_referrals( op, e );
 240
 241                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 242                         ": entry %s is referral\n", e->e_dn, 0, 0 );
 243
 244                 rs->sr_err = LDAP_REFERRAL,
 245                 rs->sr_matched = e->e_name.bv_val;
 246                 send_ldap_result( op, rs );
 247
 248                 ber_bvarray_free( rs->sr_ref );
 249                 rs->sr_ref = NULL;
 250                 rs->sr_matched = NULL;
 251                 goto done;
 252         }
 253
 254         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 255 #ifdef BDB_MULTIPLE_SUFFIXES
 256                 /* Allow renaming one suffix entry to another */
 257                 p_ndn = slap_empty_bv;
 258 #else
 259                 /* There can only be one suffix entry */
 260                 rs->sr_err = LDAP_NAMING_VIOLATION;
 261                 rs->sr_text = "cannot rename suffix entry";
 262                 goto return_results;
 263 #endif
 264         } else {
 265                 dnParent( &e->e_nname, &p_ndn );
 266         }
 267         np_ndn = &p_ndn;
 268         eip = ei->bei_parent;
 269         if ( eip && eip->bei_id ) {
 270                 /* Make sure parent entry exist and we can write its
 271                  * children.
 272                  */
 273                 rs->sr_err = bdb_cache_find_id( op, ltid,
 274                         eip->bei_id, &eip, 0, &plock );
 275
 276                 switch( rs->sr_err ) {
 277                 case 0:
 278                 case DB_NOTFOUND:
 279                         break;
 280                 case DB_LOCK_DEADLOCK:
 281                 case DB_LOCK_NOTGRANTED:
 282                         goto retry;
 283                 case LDAP_BUSY:
 284                         rs->sr_text = "ldap server busy";
 285                         goto return_results;
 286                 default:
 287                         rs->sr_err = LDAP_OTHER;
 288                         rs->sr_text = "internal error";
 289                         goto return_results;
 290                 }
 291
 292                 p = eip->bei_e;
 293                 if( p == NULL) {
 294                         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 295                                 ": parent does not exist\n", 0, 0, 0);
 296                         rs->sr_err = LDAP_OTHER;
 297                         rs->sr_text = "old entry's parent does not exist";
 298                         goto return_results;
 299                 }
 300         } else {
 301                 p = (Entry *)&slap_entry_root;
 302         }
 303
 304         /* check parent for "children" acl */
 305         rs->sr_err = access_allowed( op, p,
 306                 children, NULL,
 307                 op->oq_modrdn.rs_newSup == NULL ?
 308                         ACL_WRITE : ACL_WDEL,
 309                 NULL );
 310
 311         if ( !p_ndn.bv_len )
 312                 p = NULL;
 313
 314         if ( ! rs->sr_err ) {
 315                 switch( opinfo.boi_err ) {
 316                 case DB_LOCK_DEADLOCK:
 317                 case DB_LOCK_NOTGRANTED:
 318                         goto retry;
 319                 }
 320
 321                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 322                 Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 323                         0, 0 );
 324                 rs->sr_text = "no write access to old parent's children";
 325                 goto return_results;
 326         }
 327
 328         Debug( LDAP_DEBUG_TRACE,
 329                 LDAP_XSTRING(bdb_modrdn) ": wr to children "
 330                 "of entry %s OK\n", p_ndn.bv_val, 0, 0 );
 331
 332         if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 333                 p_dn = slap_empty_bv;
 334         } else {
 335                 dnParent( &e->e_name, &p_dn );
 336         }
 337
 338         Debug( LDAP_DEBUG_TRACE,
 339                 LDAP_XSTRING(bdb_modrdn) ": parent dn=%s\n",
 340                 p_dn.bv_val, 0, 0 );
 341
 342         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 343
 344         if ( op->oq_modrdn.rs_newSup != NULL ) {
 345                 Debug( LDAP_DEBUG_TRACE,
 346                         LDAP_XSTRING(bdb_modrdn)
 347                         ": new parent \"%s\" requested...\n",
 348                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 349
 350                 /*  newSuperior == oldParent? */
 351                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 352                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 353                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 354                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 355                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 356                 }
 357         }
 358
 359         /* There's a BDB_MULTIPLE_SUFFIXES case here that this code doesn't
 360          * support. E.g., two suffixes dc=foo,dc=com and dc=bar,dc=net.
 361          * We do not allow modDN
 362          *   dc=foo,dc=com
 363          *    newrdn dc=bar
 364          *    newsup dc=net
 365          * and we probably should. But since MULTIPLE_SUFFIXES is deprecated
 366          * I'm ignoring this problem for now.
 367          */
 368         if ( op->oq_modrdn.rs_newSup != NULL ) {
 369                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 370                         np_dn = op->oq_modrdn.rs_newSup;
 371                         np_ndn = op->oq_modrdn.rs_nnewSup;
 372
 373                         /* newSuperior == oldParent? - checked above */
 374                         /* newSuperior == entry being moved?, if so ==> ERROR */
 375                         if ( dnIsSuffix( np_ndn, &e->e_nname )) {
 376                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 377                                 rs->sr_text = "new superior not found";
 378                                 goto return_results;
 379                         }
 380                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 381
 382                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 383                                 &neip, 0, &nplock );
 384
 385                         switch( rs->sr_err ) {
 386                         case 0: np = neip->bei_e;
 387                         case DB_NOTFOUND:
 388                                 break;
 389                         case DB_LOCK_DEADLOCK:
 390                         case DB_LOCK_NOTGRANTED:
 391                                 goto retry;
 392                         case LDAP_BUSY:
 393                                 rs->sr_text = "ldap server busy";
 394                                 goto return_results;
 395                         default:
 396                                 rs->sr_err = LDAP_OTHER;
 397                                 rs->sr_text = "internal error";
 398                                 goto return_results;
 399                         }
 400
 401                         if( np == NULL) {
 402                                 Debug( LDAP_DEBUG_TRACE,
 403                                         LDAP_XSTRING(bdb_modrdn)
 404                                         ": newSup(ndn=%s) not here!\n",
 405                                         np_ndn->bv_val, 0, 0);
 406                                 rs->sr_text = "new superior not found";
 407                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 408                                 goto return_results;
 409                         }
 410
 411                         Debug( LDAP_DEBUG_TRACE,
 412                                 LDAP_XSTRING(bdb_modrdn)
 413                                 ": wr to new parent OK np=%p, id=%ld\n",
 414                                 (void *) np, (long) np->e_id, 0 );
 415
 416                         /* check newSuperior for "children" acl */
 417                         rs->sr_err = access_allowed( op, np, children,
 418                                 NULL, ACL_WADD, NULL );
 419
 420                         if( ! rs->sr_err ) {
 421                                 switch( opinfo.boi_err ) {
 422                                 case DB_LOCK_DEADLOCK:
 423                                 case DB_LOCK_NOTGRANTED:
 424                                         goto retry;
 425                                 }
 426
 427                                 Debug( LDAP_DEBUG_TRACE,
 428                                         LDAP_XSTRING(bdb_modrdn)
 429                                         ": no wr to newSup children\n",
 430                                         0, 0, 0 );
 431                                 rs->sr_text = "no write access to new superior's children";
 432                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 433                                 goto return_results;
 434                         }
 435
 436                         if ( is_entry_alias( np ) ) {
 437                                 /* parent is an alias, don't allow add */
 438                                 Debug( LDAP_DEBUG_TRACE,
 439                                         LDAP_XSTRING(bdb_modrdn)
 440                                         ": entry is alias\n",
 441                                         0, 0, 0 );
 442                                 rs->sr_text = "new superior is an alias";
 443                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 444                                 goto return_results;
 445                         }
 446
 447                         if ( is_entry_referral( np ) ) {
 448                                 /* parent is a referral, don't allow add */
 449                                 Debug( LDAP_DEBUG_TRACE,
 450                                         LDAP_XSTRING(bdb_modrdn)
 451                                         ": entry is referral\n",
 452                                         0, 0, 0 );
 453                                 rs->sr_text = "new superior is a referral";
 454                                 rs->sr_err = LDAP_OTHER;
 455                                 goto return_results;
 456                         }
 457
 458                 } else {
 459                         np_dn = NULL;
 460
 461                         /* no parent, modrdn entry directly under root */
 462                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 463                                 || be_isupdate( op ) ) {
 464                                 np = (Entry *)&slap_entry_root;
 465
 466                                 /* check parent for "children" acl */
 467                                 rs->sr_err = access_allowed( op, np,
 468                                         children, NULL, ACL_WADD, NULL );
 469
 470                                 np = NULL;
 471
 472                                 if ( ! rs->sr_err ) {
 473                                         switch( opinfo.boi_err ) {
 474                                         case DB_LOCK_DEADLOCK:
 475                                         case DB_LOCK_NOTGRANTED:
 476                                                 goto retry;
 477                                         }
 478
 479                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 480                                         Debug( LDAP_DEBUG_TRACE,
 481                                                 "no access to new superior\n",
 482                                                 0, 0, 0 );
 483                                         rs->sr_text =
 484                                                 "no write access to new superior's children";
 485                                         goto return_results;
 486                                 }
 487                         }
 488                 }
 489
 490                 Debug( LDAP_DEBUG_TRACE,
 491                         LDAP_XSTRING(bdb_modrdn)
 492                         ": wr to new parent's children OK\n",
 493                         0, 0, 0 );
 494
 495                 new_parent_dn = np_dn;
 496         }
 497
 498         /* Build target dn and make sure target entry doesn't exist already. */
 499         if (!new_dn.bv_val) {
 500                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 501         }
 502
 503         if (!new_ndn.bv_val) {
 504                 struct berval bv = {0, NULL};
 505                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 506                 ber_dupbv( &new_ndn, &bv );
 507                 /* FIXME: why not call dnNormalize() w/o ctx? */
 508                 op->o_tmpfree( bv.bv_val, op->o_tmpmemctx );
 509         }
 510
 511         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": new ndn=%s\n",
 512                 new_ndn.bv_val, 0, 0 );
 513
 514         /* Shortcut the search */
 515         nei = neip ? neip : eip;
 516         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 517         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 518         switch( rs->sr_err ) {
 519         case DB_LOCK_DEADLOCK:
 520         case DB_LOCK_NOTGRANTED:
 521                 goto retry;
 522         case DB_NOTFOUND:
 523                 break;
 524         case 0:
 525                 /* Allow rename to same DN */
 526                 if ( nei == ei )
 527                         break;
 528                 rs->sr_err = LDAP_ALREADY_EXISTS;
 529                 goto return_results;
 530         default:
 531                 rs->sr_err = LDAP_OTHER;
 532                 rs->sr_text = "internal error";
 533                 goto return_results;
 534         }
 535
 536         assert( op->orr_modlist != NULL );
 537
 538         if( op->o_preread ) {
 539                 if( preread_ctrl == NULL ) {
 540                         preread_ctrl = &ctrls[num_ctrls++];
 541                         ctrls[num_ctrls] = NULL;
 542                 }
 543                 if( slap_read_controls( op, rs, e,
 544                         &slap_pre_read_bv, preread_ctrl ) )
 545                 {
 546                         Debug( LDAP_DEBUG_TRACE,
 547                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 548                                 ": pre-read failed!\n", 0, 0, 0 );
 549                         if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
 550                                 /* FIXME: is it correct to abort
 551                                  * operation if control fails? */
 552                                 goto return_results;
 553                         }
 554                 }
 555         }
 556
 557         /* nested transaction */
 558         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 559         rs->sr_text = NULL;
 560         if( rs->sr_err != 0 ) {
 561                 Debug( LDAP_DEBUG_TRACE,
 562                         LDAP_XSTRING(bdb_modrdn)
 563                         ": txn_begin(2) failed: %s (%d)\n",
 564                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 565                 rs->sr_err = LDAP_OTHER;
 566                 rs->sr_text = "internal error";
 567                 goto return_results;
 568         }
 569         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": txn2 id: %x\n",
 570                 lt2->id(lt2), 0, 0 );
 571
 572         /* delete old DN */
 573         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 574         if ( rs->sr_err != 0 ) {
 575                 Debug(LDAP_DEBUG_TRACE,
 576                         "<=- " LDAP_XSTRING(bdb_modrdn)
 577                         ": dn2id del failed: %s (%d)\n",
 578                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 579                 switch( rs->sr_err ) {
 580                 case DB_LOCK_DEADLOCK:
 581                 case DB_LOCK_NOTGRANTED:
 582                         goto retry;
 583                 }
 584                 rs->sr_err = LDAP_OTHER;
 585                 rs->sr_text = "DN index delete fail";
 586                 goto return_results;
 587         }
 588
 589         /* copy the entry, then override some fields */
 590         dummy = *e;
 591         dummy.e_name = new_dn;
 592         dummy.e_nname = new_ndn;
 593         dummy.e_attrs = NULL;
 594
 595         /* add new DN */
 596         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 597         if ( rs->sr_err != 0 ) {
 598                 Debug(LDAP_DEBUG_TRACE,
 599                         "<=- " LDAP_XSTRING(bdb_modrdn)
 600                         ": dn2id add failed: %s (%d)\n",
 601                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 602                 switch( rs->sr_err ) {
 603                 case DB_LOCK_DEADLOCK:
 604                 case DB_LOCK_NOTGRANTED:
 605                         goto retry;
 606                 }
 607                 rs->sr_err = LDAP_OTHER;
 608                 rs->sr_text = "DN index add failed";
 609                 goto return_results;
 610         }
 611
 612         dummy.e_attrs = e->e_attrs;
 613
 614         /* modify entry */
 615         rs->sr_err = bdb_modify_internal( op, lt2, op->orr_modlist, &dummy,
 616                 &rs->sr_text, textbuf, textlen );
 617         if( rs->sr_err != LDAP_SUCCESS ) {
 618                 Debug(LDAP_DEBUG_TRACE,
 619                         "<=- " LDAP_XSTRING(bdb_modrdn)
 620                         ": modify failed: %s (%d)\n",
 621                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 622                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 623                         rs->sr_err = opinfo.boi_err;
 624                 }
 625                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 626                 switch( rs->sr_err ) {
 627                 case DB_LOCK_DEADLOCK:
 628                 case DB_LOCK_NOTGRANTED:
 629                         goto retry;
 630                 }
 631                 goto return_results;
 632         }
 633
 634         /* id2entry index */
 635         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 636         if ( rs->sr_err != 0 ) {
 637                 Debug(LDAP_DEBUG_TRACE,
 638                         "<=- " LDAP_XSTRING(bdb_modrdn)
 639                         ": id2entry failed: %s (%d)\n",
 640                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 641                 switch( rs->sr_err ) {
 642                 case DB_LOCK_DEADLOCK:
 643                 case DB_LOCK_NOTGRANTED:
 644                         goto retry;
 645                 }
 646                 rs->sr_err = LDAP_OTHER;
 647                 rs->sr_text = "entry update failed";
 648                 goto return_results;
 649         }
 650
 651         if ( p_ndn.bv_len != 0 ) {
 652                 parent_is_glue = is_entry_glue(p);
 653                 rs->sr_err = bdb_cache_children( op, lt2, p );
 654                 if ( rs->sr_err != DB_NOTFOUND ) {
 655                         switch( rs->sr_err ) {
 656                         case DB_LOCK_DEADLOCK:
 657                         case DB_LOCK_NOTGRANTED:
 658                                 goto retry;
 659                         case 0:
 660                                 break;
 661                         default:
 662                                 Debug(LDAP_DEBUG_ARGS,
 663                                         "<=- " LDAP_XSTRING(bdb_modrdn)
 664                                         ": has_children failed: %s (%d)\n",
 665                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 666                                 rs->sr_err = LDAP_OTHER;
 667                                 rs->sr_text = "internal error";
 668                                 goto return_results;
 669                         }
 670                         parent_is_leaf = 1;
 671                 }
 672                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 673                 p = NULL;
 674         }
 675
 676         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 677                 rs->sr_err = LDAP_OTHER;
 678                 rs->sr_text = "txn_commit(2) failed";
 679                 goto return_results;
 680         }
 681
 682         if( op->o_postread ) {
 683                 if( postread_ctrl == NULL ) {
 684                         postread_ctrl = &ctrls[num_ctrls++];
 685                         ctrls[num_ctrls] = NULL;
 686                 }
 687                 if( slap_read_controls( op, rs, &dummy,
 688                         &slap_post_read_bv, postread_ctrl ) )
 689                 {
 690                         Debug( LDAP_DEBUG_TRACE,
 691                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 692                                 ": post-read failed!\n", 0, 0, 0 );
 693                         if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
 694                                 /* FIXME: is it correct to abort
 695                                  * operation if control fails? */
 696                                 goto return_results;
 697                         }
 698                 }
 699         }
 700
 701         if( op->o_noop ) {
 702                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 703                         rs->sr_text = "txn_abort (no-op) failed";
 704                 } else {
 705                         rs->sr_err = LDAP_X_NO_OPERATION;
 706                         ltid = NULL;
 707                         /* Only free attrs if they were dup'd.  */
 708                         if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 709                         goto return_results;
 710                 }
 711
 712         } else {
 713                 rc = bdb_cache_modrdn( bdb, e, &op->orr_nnewrdn, &dummy, neip,
 714                         ltid, &lock );
 715                 switch( rc ) {
 716                 case DB_LOCK_DEADLOCK:
 717                 case DB_LOCK_NOTGRANTED:
 718                         goto retry;
 719                 }
 720                 dummy.e_attrs = NULL;
 721                 new_dn.bv_val = NULL;
 722                 new_ndn.bv_val = NULL;
 723
 724                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 725                         rs->sr_text = "txn_commit failed";
 726                 } else {
 727                         rs->sr_err = LDAP_SUCCESS;
 728                 }
 729         }
 730
 731         ltid = NULL;
 732         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 733         opinfo.boi_oe.oe_key = NULL;
 734
 735         if( rs->sr_err != LDAP_SUCCESS ) {
 736                 Debug( LDAP_DEBUG_TRACE,
 737                         LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
 738                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 739                 rs->sr_err = LDAP_OTHER;
 740
 741                 goto return_results;
 742         }
 743
 744         Debug(LDAP_DEBUG_TRACE,
 745                 LDAP_XSTRING(bdb_modrdn)
 746                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 747                 op->o_noop ? " (no-op)" : "",
 748                 dummy.e_id, op->o_req_dn.bv_val );
 749         rs->sr_text = NULL;
 750         if( num_ctrls ) rs->sr_ctrls = ctrls;
 751
 752 return_results:
 753         if ( dummy.e_attrs ) {
 754                 attrs_free( dummy.e_attrs );
 755         }
 756         send_ldap_result( op, rs );
 757
 758         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
 759                 TXN_CHECKPOINT( bdb->bi_dbenv,
 760                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 761         }
 762
 763         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 764                 op->o_delete_glue_parent = 1;
 765         }
 766
 767 done:
 768         slap_graduate_commit_csn( op );
 769
 770         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 771         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 772
 773         /* LDAP v3 Support */
 774         if( np != NULL ) {
 775                 /* free new parent and reader lock */
 776                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 777         }
 778
 779         if( p != NULL ) {
 780                 /* free parent and reader lock */
 781                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 782         }
 783
 784         /* free entry */
 785         if( e != NULL ) {
 786                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 787         }
 788
 789         if( ltid != NULL ) {
 790                 TXN_ABORT( ltid );
 791         }
 792         if ( opinfo.boi_oe.oe_key ) {
 793                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 794         }
 795
 796         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 797                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 798                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 799         }
 800         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 801                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 802                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 803         }
 804         return rs->sr_err;
 805 }