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 2000-2017 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         {
 118                 int tflags = bdb->bi_db_opflags;
 119                 if ( get_lazyCommit( op ))
 120                         tflags |= DB_TXN_NOSYNC;
 121                 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid, tflags );
 122         }
 123         rs->sr_text = NULL;
 124         if( rs->sr_err != 0 ) {
 125                 Debug( LDAP_DEBUG_TRACE,
 126                         LDAP_XSTRING(bdb_modrdn) ": txn_begin failed: "
 127                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 128                 rs->sr_err = LDAP_OTHER;
 129                 rs->sr_text = "internal error";
 130                 goto return_results;
 131         }
 132         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": txn1 id: %x\n",
 133                 ltid->id(ltid), 0, 0 );
 134
 135         opinfo.boi_oe.oe_key = bdb;
 136         opinfo.boi_txn = ltid;
 137         opinfo.boi_err = 0;
 138         opinfo.boi_acl_cache = op->o_do_not_cache;
 139         LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
 140
 141         /* get entry */
 142         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 143                 &lock );
 144
 145         switch( rs->sr_err ) {
 146         case 0:
 147         case DB_NOTFOUND:
 148                 break;
 149         case DB_LOCK_DEADLOCK:
 150         case DB_LOCK_NOTGRANTED:
 151                 goto retry;
 152         case LDAP_BUSY:
 153                 rs->sr_text = "ldap server busy";
 154                 goto return_results;
 155         default:
 156                 rs->sr_err = LDAP_OTHER;
 157                 rs->sr_text = "internal error";
 158                 goto return_results;
 159         }
 160
 161         e = ei->bei_e;
 162         /* FIXME: dn2entry() should return non-glue entry */
 163         if (( rs->sr_err == DB_NOTFOUND ) ||
 164                 ( !manageDSAit && e && is_entry_glue( e )))
 165         {
 166                 if( e != NULL ) {
 167                         rs->sr_matched = ch_strdup( e->e_dn );
 168                         rs->sr_ref = is_entry_referral( e )
 169                                 ? get_entry_referrals( op, e )
 170                                 : NULL;
 171                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 172                         e = NULL;
 173
 174                 } else {
 175                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 176                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 177                 }
 178
 179                 rs->sr_err = LDAP_REFERRAL;
 180                 send_ldap_result( op, rs );
 181
 182                 ber_bvarray_free( rs->sr_ref );
 183                 free( (char *)rs->sr_matched );
 184                 rs->sr_ref = NULL;
 185                 rs->sr_matched = NULL;
 186
 187                 goto done;
 188         }
 189
 190         if ( get_assert( op ) &&
 191                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 192         {
 193                 rs->sr_err = LDAP_ASSERTION_FAILED;
 194                 goto return_results;
 195         }
 196
 197         /* check write on old entry */
 198         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 199         if ( ! rs->sr_err ) {
 200                 switch( opinfo.boi_err ) {
 201                 case DB_LOCK_DEADLOCK:
 202                 case DB_LOCK_NOTGRANTED:
 203                         goto retry;
 204                 }
 205
 206                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 207                         0, 0 );
 208                 rs->sr_text = "no write access to old entry";
 209                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 210                 goto return_results;
 211         }
 212
 213 #ifndef BDB_HIER
 214         rs->sr_err = bdb_cache_children( op, ltid, e );
 215         if ( rs->sr_err != DB_NOTFOUND ) {
 216                 switch( rs->sr_err ) {
 217                 case DB_LOCK_DEADLOCK:
 218                 case DB_LOCK_NOTGRANTED:
 219                         goto retry;
 220                 case 0:
 221                         Debug(LDAP_DEBUG_ARGS,
 222                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 223                                 ": non-leaf %s\n",
 224                                 op->o_req_dn.bv_val, 0, 0);
 225                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 226                         rs->sr_text = "subtree rename not supported";
 227                         break;
 228                 default:
 229                         Debug(LDAP_DEBUG_ARGS,
 230                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 231                                 ": has_children failed: %s (%d)\n",
 232                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 233                         rs->sr_err = LDAP_OTHER;
 234                         rs->sr_text = "internal error";
 235                 }
 236                 goto return_results;
 237         }
 238         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 239 #endif
 240
 241         if (!manageDSAit && is_entry_referral( e ) ) {
 242                 /* parent is a referral, don't allow add */
 243                 rs->sr_ref = get_entry_referrals( op, e );
 244
 245                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 246                         ": entry %s is referral\n", e->e_dn, 0, 0 );
 247
 248                 rs->sr_err = LDAP_REFERRAL,
 249                 rs->sr_matched = e->e_name.bv_val;
 250                 send_ldap_result( op, rs );
 251
 252                 ber_bvarray_free( rs->sr_ref );
 253                 rs->sr_ref = NULL;
 254                 rs->sr_matched = NULL;
 255                 goto done;
 256         }
 257
 258         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 259 #ifdef BDB_MULTIPLE_SUFFIXES
 260                 /* Allow renaming one suffix entry to another */
 261                 p_ndn = slap_empty_bv;
 262 #else
 263                 /* There can only be one suffix entry */
 264                 rs->sr_err = LDAP_NAMING_VIOLATION;
 265                 rs->sr_text = "cannot rename suffix entry";
 266                 goto return_results;
 267 #endif
 268         } else {
 269                 dnParent( &e->e_nname, &p_ndn );
 270         }
 271         np_ndn = &p_ndn;
 272         eip = ei->bei_parent;
 273         if ( eip && eip->bei_id ) {
 274                 /* Make sure parent entry exist and we can write its
 275                  * children.
 276                  */
 277                 rs->sr_err = bdb_cache_find_id( op, ltid,
 278                         eip->bei_id, &eip, 0, &plock );
 279
 280                 switch( rs->sr_err ) {
 281                 case 0:
 282                 case DB_NOTFOUND:
 283                         break;
 284                 case DB_LOCK_DEADLOCK:
 285                 case DB_LOCK_NOTGRANTED:
 286                         goto retry;
 287                 case LDAP_BUSY:
 288                         rs->sr_text = "ldap server busy";
 289                         goto return_results;
 290                 default:
 291                         rs->sr_err = LDAP_OTHER;
 292                         rs->sr_text = "internal error";
 293                         goto return_results;
 294                 }
 295
 296                 p = eip->bei_e;
 297                 if( p == NULL) {
 298                         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 299                                 ": parent does not exist\n", 0, 0, 0);
 300                         rs->sr_err = LDAP_OTHER;
 301                         rs->sr_text = "old entry's parent does not exist";
 302                         goto return_results;
 303                 }
 304         } else {
 305                 p = (Entry *)&slap_entry_root;
 306         }
 307
 308         /* check parent for "children" acl */
 309         rs->sr_err = access_allowed( op, p,
 310                 children, NULL,
 311                 op->oq_modrdn.rs_newSup == NULL ?
 312                         ACL_WRITE : ACL_WDEL,
 313                 NULL );
 314
 315         if ( !p_ndn.bv_len )
 316                 p = NULL;
 317
 318         if ( ! rs->sr_err ) {
 319                 switch( opinfo.boi_err ) {
 320                 case DB_LOCK_DEADLOCK:
 321                 case DB_LOCK_NOTGRANTED:
 322                         goto retry;
 323                 }
 324
 325                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 326                 Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 327                         0, 0 );
 328                 rs->sr_text = "no write access to old parent's children";
 329                 goto return_results;
 330         }
 331
 332         Debug( LDAP_DEBUG_TRACE,
 333                 LDAP_XSTRING(bdb_modrdn) ": wr to children "
 334                 "of entry %s OK\n", p_ndn.bv_val, 0, 0 );
 335
 336         if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 337                 p_dn = slap_empty_bv;
 338         } else {
 339                 dnParent( &e->e_name, &p_dn );
 340         }
 341
 342         Debug( LDAP_DEBUG_TRACE,
 343                 LDAP_XSTRING(bdb_modrdn) ": parent dn=%s\n",
 344                 p_dn.bv_val, 0, 0 );
 345
 346         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 347
 348         if ( op->oq_modrdn.rs_newSup != NULL ) {
 349                 Debug( LDAP_DEBUG_TRACE,
 350                         LDAP_XSTRING(bdb_modrdn)
 351                         ": new parent \"%s\" requested...\n",
 352                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 353
 354                 /*  newSuperior == oldParent? */
 355                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 356                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 357                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 358                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 359                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 360                 }
 361         }
 362
 363         /* There's a BDB_MULTIPLE_SUFFIXES case here that this code doesn't
 364          * support. E.g., two suffixes dc=foo,dc=com and dc=bar,dc=net.
 365          * We do not allow modDN
 366          *   dc=foo,dc=com
 367          *    newrdn dc=bar
 368          *    newsup dc=net
 369          * and we probably should. But since MULTIPLE_SUFFIXES is deprecated
 370          * I'm ignoring this problem for now.
 371          */
 372         if ( op->oq_modrdn.rs_newSup != NULL ) {
 373                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 374                         np_dn = op->oq_modrdn.rs_newSup;
 375                         np_ndn = op->oq_modrdn.rs_nnewSup;
 376
 377                         /* newSuperior == oldParent? - checked above */
 378                         /* newSuperior == entry being moved?, if so ==> ERROR */
 379                         if ( dnIsSuffix( np_ndn, &e->e_nname )) {
 380                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 381                                 rs->sr_text = "new superior not found";
 382                                 goto return_results;
 383                         }
 384                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 385
 386                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 387                                 &neip, 0, &nplock );
 388
 389                         switch( rs->sr_err ) {
 390                         case 0: np = neip->bei_e;
 391                         case DB_NOTFOUND:
 392                                 break;
 393                         case DB_LOCK_DEADLOCK:
 394                         case DB_LOCK_NOTGRANTED:
 395                                 goto retry;
 396                         case LDAP_BUSY:
 397                                 rs->sr_text = "ldap server busy";
 398                                 goto return_results;
 399                         default:
 400                                 rs->sr_err = LDAP_OTHER;
 401                                 rs->sr_text = "internal error";
 402                                 goto return_results;
 403                         }
 404
 405                         if( np == NULL) {
 406                                 Debug( LDAP_DEBUG_TRACE,
 407                                         LDAP_XSTRING(bdb_modrdn)
 408                                         ": newSup(ndn=%s) not here!\n",
 409                                         np_ndn->bv_val, 0, 0);
 410                                 rs->sr_text = "new superior not found";
 411                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 412                                 goto return_results;
 413                         }
 414
 415                         Debug( LDAP_DEBUG_TRACE,
 416                                 LDAP_XSTRING(bdb_modrdn)
 417                                 ": wr to new parent OK np=%p, id=%ld\n",
 418                                 (void *) np, (long) np->e_id, 0 );
 419
 420                         /* check newSuperior for "children" acl */
 421                         rs->sr_err = access_allowed( op, np, children,
 422                                 NULL, ACL_WADD, NULL );
 423
 424                         if( ! rs->sr_err ) {
 425                                 switch( opinfo.boi_err ) {
 426                                 case DB_LOCK_DEADLOCK:
 427                                 case DB_LOCK_NOTGRANTED:
 428                                         goto retry;
 429                                 }
 430
 431                                 Debug( LDAP_DEBUG_TRACE,
 432                                         LDAP_XSTRING(bdb_modrdn)
 433                                         ": no wr to newSup children\n",
 434                                         0, 0, 0 );
 435                                 rs->sr_text = "no write access to new superior's children";
 436                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 437                                 goto return_results;
 438                         }
 439
 440                         if ( is_entry_alias( np ) ) {
 441                                 /* parent is an alias, don't allow add */
 442                                 Debug( LDAP_DEBUG_TRACE,
 443                                         LDAP_XSTRING(bdb_modrdn)
 444                                         ": entry is alias\n",
 445                                         0, 0, 0 );
 446                                 rs->sr_text = "new superior is an alias";
 447                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 448                                 goto return_results;
 449                         }
 450
 451                         if ( is_entry_referral( np ) ) {
 452                                 /* parent is a referral, don't allow add */
 453                                 Debug( LDAP_DEBUG_TRACE,
 454                                         LDAP_XSTRING(bdb_modrdn)
 455                                         ": entry is referral\n",
 456                                         0, 0, 0 );
 457                                 rs->sr_text = "new superior is a referral";
 458                                 rs->sr_err = LDAP_OTHER;
 459                                 goto return_results;
 460                         }
 461
 462                 } else {
 463                         np_dn = NULL;
 464
 465                         /* no parent, modrdn entry directly under root */
 466                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 467                                 || be_isupdate( op ) ) {
 468                                 np = (Entry *)&slap_entry_root;
 469
 470                                 /* check parent for "children" acl */
 471                                 rs->sr_err = access_allowed( op, np,
 472                                         children, NULL, ACL_WADD, NULL );
 473
 474                                 np = NULL;
 475
 476                                 if ( ! rs->sr_err ) {
 477                                         switch( opinfo.boi_err ) {
 478                                         case DB_LOCK_DEADLOCK:
 479                                         case DB_LOCK_NOTGRANTED:
 480                                                 goto retry;
 481                                         }
 482
 483                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 484                                         Debug( LDAP_DEBUG_TRACE,
 485                                                 "no access to new superior\n",
 486                                                 0, 0, 0 );
 487                                         rs->sr_text =
 488                                                 "no write access to new superior's children";
 489                                         goto return_results;
 490                                 }
 491                         }
 492                 }
 493
 494                 Debug( LDAP_DEBUG_TRACE,
 495                         LDAP_XSTRING(bdb_modrdn)
 496                         ": wr to new parent's children OK\n",
 497                         0, 0, 0 );
 498
 499                 new_parent_dn = np_dn;
 500         }
 501
 502         /* Build target dn and make sure target entry doesn't exist already. */
 503         if (!new_dn.bv_val) {
 504                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 505         }
 506
 507         if (!new_ndn.bv_val) {
 508                 struct berval bv = {0, NULL};
 509                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 510                 ber_dupbv( &new_ndn, &bv );
 511                 /* FIXME: why not call dnNormalize() w/o ctx? */
 512                 op->o_tmpfree( bv.bv_val, op->o_tmpmemctx );
 513         }
 514
 515         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": new ndn=%s\n",
 516                 new_ndn.bv_val, 0, 0 );
 517
 518         /* Shortcut the search */
 519         nei = neip ? neip : eip;
 520         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 521         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 522         switch( rs->sr_err ) {
 523         case DB_LOCK_DEADLOCK:
 524         case DB_LOCK_NOTGRANTED:
 525                 goto retry;
 526         case DB_NOTFOUND:
 527                 break;
 528         case 0:
 529                 /* Allow rename to same DN */
 530                 if ( nei == ei )
 531                         break;
 532                 rs->sr_err = LDAP_ALREADY_EXISTS;
 533                 goto return_results;
 534         default:
 535                 rs->sr_err = LDAP_OTHER;
 536                 rs->sr_text = "internal error";
 537                 goto return_results;
 538         }
 539
 540         assert( op->orr_modlist != NULL );
 541
 542         if( op->o_preread ) {
 543                 if( preread_ctrl == NULL ) {
 544                         preread_ctrl = &ctrls[num_ctrls++];
 545                         ctrls[num_ctrls] = NULL;
 546                 }
 547                 if( slap_read_controls( op, rs, e,
 548                         &slap_pre_read_bv, preread_ctrl ) )
 549                 {
 550                         Debug( LDAP_DEBUG_TRACE,
 551                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 552                                 ": pre-read failed!\n", 0, 0, 0 );
 553                         if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
 554                                 /* FIXME: is it correct to abort
 555                                  * operation if control fails? */
 556                                 goto return_results;
 557                         }
 558                 }
 559         }
 560
 561         /* nested transaction */
 562         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 563         rs->sr_text = NULL;
 564         if( rs->sr_err != 0 ) {
 565                 Debug( LDAP_DEBUG_TRACE,
 566                         LDAP_XSTRING(bdb_modrdn)
 567                         ": txn_begin(2) failed: %s (%d)\n",
 568                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 569                 rs->sr_err = LDAP_OTHER;
 570                 rs->sr_text = "internal error";
 571                 goto return_results;
 572         }
 573         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": txn2 id: %x\n",
 574                 lt2->id(lt2), 0, 0 );
 575
 576         /* delete old DN */
 577         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 578         if ( rs->sr_err != 0 ) {
 579                 Debug(LDAP_DEBUG_TRACE,
 580                         "<=- " LDAP_XSTRING(bdb_modrdn)
 581                         ": dn2id del failed: %s (%d)\n",
 582                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 583                 switch( rs->sr_err ) {
 584                 case DB_LOCK_DEADLOCK:
 585                 case DB_LOCK_NOTGRANTED:
 586                         goto retry;
 587                 }
 588                 rs->sr_err = LDAP_OTHER;
 589                 rs->sr_text = "DN index delete fail";
 590                 goto return_results;
 591         }
 592
 593         /* copy the entry, then override some fields */
 594         dummy = *e;
 595         dummy.e_name = new_dn;
 596         dummy.e_nname = new_ndn;
 597         dummy.e_attrs = NULL;
 598
 599         /* add new DN */
 600         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 601         if ( rs->sr_err != 0 ) {
 602                 Debug(LDAP_DEBUG_TRACE,
 603                         "<=- " LDAP_XSTRING(bdb_modrdn)
 604                         ": dn2id add failed: %s (%d)\n",
 605                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 606                 switch( rs->sr_err ) {
 607                 case DB_LOCK_DEADLOCK:
 608                 case DB_LOCK_NOTGRANTED:
 609                         goto retry;
 610                 }
 611                 rs->sr_err = LDAP_OTHER;
 612                 rs->sr_text = "DN index add failed";
 613                 goto return_results;
 614         }
 615
 616         dummy.e_attrs = e->e_attrs;
 617
 618         /* modify entry */
 619         rs->sr_err = bdb_modify_internal( op, lt2, op->orr_modlist, &dummy,
 620                 &rs->sr_text, textbuf, textlen );
 621         if( rs->sr_err != LDAP_SUCCESS ) {
 622                 Debug(LDAP_DEBUG_TRACE,
 623                         "<=- " LDAP_XSTRING(bdb_modrdn)
 624                         ": modify failed: %s (%d)\n",
 625                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 626                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 627                         rs->sr_err = opinfo.boi_err;
 628                 }
 629                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 630                 switch( rs->sr_err ) {
 631                 case DB_LOCK_DEADLOCK:
 632                 case DB_LOCK_NOTGRANTED:
 633                         goto retry;
 634                 }
 635                 goto return_results;
 636         }
 637
 638         /* id2entry index */
 639         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 640         if ( rs->sr_err != 0 ) {
 641                 Debug(LDAP_DEBUG_TRACE,
 642                         "<=- " LDAP_XSTRING(bdb_modrdn)
 643                         ": id2entry failed: %s (%d)\n",
 644                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 645                 switch( rs->sr_err ) {
 646                 case DB_LOCK_DEADLOCK:
 647                 case DB_LOCK_NOTGRANTED:
 648                         goto retry;
 649                 }
 650                 rs->sr_err = LDAP_OTHER;
 651                 rs->sr_text = "entry update failed";
 652                 goto return_results;
 653         }
 654
 655         if ( p_ndn.bv_len != 0 ) {
 656                 parent_is_glue = is_entry_glue(p);
 657                 rs->sr_err = bdb_cache_children( op, lt2, p );
 658                 if ( rs->sr_err != DB_NOTFOUND ) {
 659                         switch( rs->sr_err ) {
 660                         case DB_LOCK_DEADLOCK:
 661                         case DB_LOCK_NOTGRANTED:
 662                                 goto retry;
 663                         case 0:
 664                                 break;
 665                         default:
 666                                 Debug(LDAP_DEBUG_ARGS,
 667                                         "<=- " LDAP_XSTRING(bdb_modrdn)
 668                                         ": has_children failed: %s (%d)\n",
 669                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 670                                 rs->sr_err = LDAP_OTHER;
 671                                 rs->sr_text = "internal error";
 672                                 goto return_results;
 673                         }
 674                         parent_is_leaf = 1;
 675                 }
 676                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 677                 p = NULL;
 678         }
 679
 680         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 681                 rs->sr_err = LDAP_OTHER;
 682                 rs->sr_text = "txn_commit(2) failed";
 683                 goto return_results;
 684         }
 685
 686         if( op->o_postread ) {
 687                 if( postread_ctrl == NULL ) {
 688                         postread_ctrl = &ctrls[num_ctrls++];
 689                         ctrls[num_ctrls] = NULL;
 690                 }
 691                 if( slap_read_controls( op, rs, &dummy,
 692                         &slap_post_read_bv, postread_ctrl ) )
 693                 {
 694                         Debug( LDAP_DEBUG_TRACE,
 695                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 696                                 ": post-read failed!\n", 0, 0, 0 );
 697                         if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
 698                                 /* FIXME: is it correct to abort
 699                                  * operation if control fails? */
 700                                 goto return_results;
 701                         }
 702                 }
 703         }
 704
 705         if( op->o_noop ) {
 706                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 707                         rs->sr_text = "txn_abort (no-op) failed";
 708                 } else {
 709                         rs->sr_err = LDAP_X_NO_OPERATION;
 710                         ltid = NULL;
 711                         /* Only free attrs if they were dup'd.  */
 712                         if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 713                         goto return_results;
 714                 }
 715
 716         } else {
 717                 rc = bdb_cache_modrdn( bdb, e, &op->orr_nnewrdn, &dummy, neip,
 718                         ltid, &lock );
 719                 switch( rc ) {
 720                 case DB_LOCK_DEADLOCK:
 721                 case DB_LOCK_NOTGRANTED:
 722                         goto retry;
 723                 }
 724                 dummy.e_attrs = NULL;
 725                 new_dn.bv_val = NULL;
 726                 new_ndn.bv_val = NULL;
 727
 728                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 729                         rs->sr_text = "txn_commit failed";
 730                 } else {
 731                         rs->sr_err = LDAP_SUCCESS;
 732                 }
 733         }
 734
 735         ltid = NULL;
 736         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 737         opinfo.boi_oe.oe_key = NULL;
 738
 739         if( rs->sr_err != LDAP_SUCCESS ) {
 740                 Debug( LDAP_DEBUG_TRACE,
 741                         LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
 742                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 743                 rs->sr_err = LDAP_OTHER;
 744
 745                 goto return_results;
 746         }
 747
 748         Debug(LDAP_DEBUG_TRACE,
 749                 LDAP_XSTRING(bdb_modrdn)
 750                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 751                 op->o_noop ? " (no-op)" : "",
 752                 dummy.e_id, op->o_req_dn.bv_val );
 753         rs->sr_text = NULL;
 754         if( num_ctrls ) rs->sr_ctrls = ctrls;
 755
 756 return_results:
 757         if ( dummy.e_attrs ) {
 758                 attrs_free( dummy.e_attrs );
 759         }
 760         send_ldap_result( op, rs );
 761
 762         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
 763                 TXN_CHECKPOINT( bdb->bi_dbenv,
 764                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 765         }
 766
 767         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 768                 op->o_delete_glue_parent = 1;
 769         }
 770
 771 done:
 772         slap_graduate_commit_csn( op );
 773
 774         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 775         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 776
 777         /* LDAP v3 Support */
 778         if( np != NULL ) {
 779                 /* free new parent and reader lock */
 780                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 781         }
 782
 783         if( p != NULL ) {
 784                 /* free parent and reader lock */
 785                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 786         }
 787
 788         /* free entry */
 789         if( e != NULL ) {
 790                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 791         }
 792
 793         if( ltid != NULL ) {
 794                 TXN_ABORT( ltid );
 795         }
 796         if ( opinfo.boi_oe.oe_key ) {
 797                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 798         }
 799
 800         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 801                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 802                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 803         }
 804         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 805                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 806                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 807         }
 808         return rs->sr_err;
 809 }