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 2000-2005 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         int             isroot = -1;
  33         Entry           *e = NULL;
  34         Entry           *p = NULL;
  35         EntryInfo       *ei = NULL, *eip = NULL, *nei = NULL, *neip = NULL;
  36         /* LDAP v2 supporting correct attribute handling. */
  37         LDAPRDN         new_rdn = NULL;
  38         LDAPRDN         old_rdn = NULL;
  39         char textbuf[SLAP_TEXT_BUFLEN];
  40         size_t textlen = sizeof textbuf;
  41         DB_TXN          *ltid = NULL, *lt2;
  42         struct bdb_op_info opinfo = {0};
  43         Entry dummy = {0};
  44
  45         Entry           *np = NULL;                     /* newSuperior Entry */
  46         struct berval   *np_dn = NULL;                  /* newSuperior dn */
  47         struct berval   *np_ndn = NULL;                 /* newSuperior ndn */
  48         struct berval   *new_parent_dn = NULL;  /* np_dn, p_dn, or NULL */
  49
  50         /* Used to interface with bdb_modify_internal() */
  51         Modifications   *mod = NULL;            /* Used to delete old rdn */
  52
  53         int             manageDSAit = get_manageDSAit( op );
  54
  55         u_int32_t       locker = 0;
  56         DB_LOCK         lock, plock, nplock;
  57
  58         int             num_retries = 0;
  59
  60         LDAPControl **preread_ctrl = NULL;
  61         LDAPControl **postread_ctrl = NULL;
  62         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  63         int num_ctrls = 0;
  64
  65         int     rc;
  66
  67         int parent_is_glue = 0;
  68         int parent_is_leaf = 0;
  69
  70         ctrls[num_ctrls] = NULL;
  71
  72         Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn) "(%s,%s,%s)\n",
  73                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  74                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  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                 op->o_private = NULL;
 100                 op->o_do_not_cache = opinfo.boi_acl_cache;
 101                 if( rs->sr_err != 0 ) {
 102                         rs->sr_err = LDAP_OTHER;
 103                         rs->sr_text = "internal error";
 104                         goto return_results;
 105                 }
 106                 if ( op->o_abandon ) {
 107                         rs->sr_err = SLAPD_ABANDON;
 108                         goto return_results;
 109                 }
 110                 parent_is_glue = 0;
 111                 parent_is_leaf = 0;
 112                 ldap_pvt_thread_yield();
 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
 129         locker = TXN_ID ( ltid );
 130
 131         opinfo.boi_bdb = op->o_bd;
 132         opinfo.boi_txn = ltid;
 133         opinfo.boi_locker = locker;
 134         opinfo.boi_err = 0;
 135         opinfo.boi_acl_cache = op->o_do_not_cache;
 136         op->o_private = &opinfo;
 137
 138         /* get entry */
 139         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 140                 locker, &lock );
 141
 142         switch( rs->sr_err ) {
 143         case 0:
 144         case DB_NOTFOUND:
 145                 break;
 146         case DB_LOCK_DEADLOCK:
 147         case DB_LOCK_NOTGRANTED:
 148                 goto retry;
 149         case LDAP_BUSY:
 150                 rs->sr_text = "ldap server busy";
 151                 goto return_results;
 152         default:
 153                 rs->sr_err = LDAP_OTHER;
 154                 rs->sr_text = "internal error";
 155                 goto return_results;
 156         }
 157
 158         e = ei->bei_e;
 159         /* FIXME: dn2entry() should return non-glue entry */
 160         if (( rs->sr_err == DB_NOTFOUND ) ||
 161                 ( !manageDSAit && e && is_entry_glue( e )))
 162         {
 163                 if( e != NULL ) {
 164                         rs->sr_matched = ch_strdup( e->e_dn );
 165                         rs->sr_ref = is_entry_referral( e )
 166                                 ? get_entry_referrals( op, e )
 167                                 : NULL;
 168                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 169                         e = NULL;
 170
 171                 } else {
 172                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 173                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 174                 }
 175
 176                 rs->sr_err = LDAP_REFERRAL;
 177                 send_ldap_result( op, rs );
 178
 179                 ber_bvarray_free( rs->sr_ref );
 180                 free( (char *)rs->sr_matched );
 181                 rs->sr_ref = NULL;
 182                 rs->sr_matched = NULL;
 183
 184                 goto done;
 185         }
 186
 187         if ( get_assert( op ) &&
 188                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 189         {
 190                 rs->sr_err = LDAP_ASSERTION_FAILED;
 191                 goto return_results;
 192         }
 193
 194         /* check write on old entry */
 195         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 196         if ( ! rs->sr_err ) {
 197                 switch( opinfo.boi_err ) {
 198                 case DB_LOCK_DEADLOCK:
 199                 case DB_LOCK_NOTGRANTED:
 200                         goto retry;
 201                 }
 202
 203                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 204                         0, 0 );
 205                 rs->sr_text = "no write access to old entry";
 206                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 207                 goto return_results;
 208         }
 209
 210 #ifndef BDB_HIER
 211         rs->sr_err = bdb_cache_children( op, ltid, e );
 212         if ( rs->sr_err != DB_NOTFOUND ) {
 213                 switch( rs->sr_err ) {
 214                 case DB_LOCK_DEADLOCK:
 215                 case DB_LOCK_NOTGRANTED:
 216                         goto retry;
 217                 case 0:
 218                         Debug(LDAP_DEBUG_ARGS,
 219                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 220                                 ": non-leaf %s\n",
 221                                 op->o_req_dn.bv_val, 0, 0);
 222                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 223                         rs->sr_text = "subtree rename not supported";
 224                         break;
 225                 default:
 226                         Debug(LDAP_DEBUG_ARGS,
 227                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 228                                 ": has_children failed: %s (%d)\n",
 229                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 230                         rs->sr_err = LDAP_OTHER;
 231                         rs->sr_text = "internal error";
 232                 }
 233                 goto return_results;
 234         }
 235         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 236 #endif
 237
 238         if (!manageDSAit && is_entry_referral( e ) ) {
 239                 /* parent is a referral, don't allow add */
 240                 rs->sr_ref = get_entry_referrals( op, e );
 241
 242                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 243                         ": entry %s is referral\n", e->e_dn, 0, 0 );
 244
 245                 rs->sr_err = LDAP_REFERRAL,
 246                 rs->sr_matched = e->e_name.bv_val;
 247                 send_ldap_result( op, rs );
 248
 249                 ber_bvarray_free( rs->sr_ref );
 250                 rs->sr_ref = NULL;
 251                 rs->sr_matched = NULL;
 252                 goto done;
 253         }
 254
 255         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 256                 p_ndn = slap_empty_bv;
 257         } else {
 258                 dnParent( &e->e_nname, &p_ndn );
 259         }
 260         np_ndn = &p_ndn;
 261         if ( p_ndn.bv_len != 0 ) {
 262                 /* Make sure parent entry exist and we can write its
 263                  * children.
 264                  */
 265                 eip = ei->bei_parent;
 266                 rs->sr_err = bdb_cache_find_id( op, ltid,
 267                         eip->bei_id, &eip, 0, locker, &plock );
 268
 269                 switch( rs->sr_err ) {
 270                 case 0:
 271                 case DB_NOTFOUND:
 272                         break;
 273                 case DB_LOCK_DEADLOCK:
 274                 case DB_LOCK_NOTGRANTED:
 275                         goto retry;
 276                 case LDAP_BUSY:
 277                         rs->sr_text = "ldap server busy";
 278                         goto return_results;
 279                 default:
 280                         rs->sr_err = LDAP_OTHER;
 281                         rs->sr_text = "internal error";
 282                         goto return_results;
 283                 }
 284
 285                 p = eip->bei_e;
 286                 if( p == NULL) {
 287                         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 288                                 ": parent does not exist\n", 0, 0, 0);
 289                         rs->sr_err = LDAP_OTHER;
 290                         rs->sr_text = "old entry's parent does not exist";
 291                         goto return_results;
 292                 }
 293
 294                 /* check parent for "children" acl */
 295                 rs->sr_err = access_allowed( op, p,
 296                         children, NULL,
 297                         op->oq_modrdn.rs_newSup == NULL ?
 298                                 ACL_WRITE : ACL_WDEL,
 299                         NULL );
 300
 301                 if ( ! rs->sr_err ) {
 302                         switch( opinfo.boi_err ) {
 303                         case DB_LOCK_DEADLOCK:
 304                         case DB_LOCK_NOTGRANTED:
 305                                 goto retry;
 306                         }
 307
 308                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 309                         Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 310                                 0, 0 );
 311                         rs->sr_text = "no write access to old parent's children";
 312                         goto return_results;
 313                 }
 314
 315                 Debug( LDAP_DEBUG_TRACE,
 316                         LDAP_XSTRING(bdb_modrdn) ": wr to children "
 317                         "of entry %s OK\n", p_ndn.bv_val, 0, 0 );
 318
 319                 if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 320                         p_dn = slap_empty_bv;
 321                 } else {
 322                         dnParent( &e->e_name, &p_dn );
 323                 }
 324
 325                 Debug( LDAP_DEBUG_TRACE,
 326                         LDAP_XSTRING(bdb_modrdn) ": parent dn=%s\n",
 327                         p_dn.bv_val, 0, 0 );
 328
 329         } else {
 330                 /* no parent, modrdn entry directly under root */
 331                 isroot = be_isroot( op );
 332                 if ( ! isroot ) {
 333                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 334                                 || be_shadow_update( op ) ) {
 335
 336                                 p = (Entry *)&slap_entry_root;
 337
 338                                 /* check parent for "children" acl */
 339                                 rs->sr_err = access_allowed( op, p,
 340                                         children, NULL,
 341                                         op->oq_modrdn.rs_newSup == NULL ?
 342                                                 ACL_WRITE : ACL_WDEL,
 343                                         NULL );
 344
 345                                 p = NULL;
 346
 347                                 if ( ! rs->sr_err ) {
 348                                         switch( opinfo.boi_err ) {
 349                                         case DB_LOCK_DEADLOCK:
 350                                         case DB_LOCK_NOTGRANTED:
 351                                                 goto retry;
 352                                         }
 353
 354                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 355                                         Debug( LDAP_DEBUG_TRACE,
 356                                                 "no access to parent\n",
 357                                                 0, 0, 0 );
 358                                         rs->sr_text = "no write access to old parent";
 359                                         goto return_results;
 360                                 }
 361
 362                                 Debug( LDAP_DEBUG_TRACE,
 363                                         LDAP_XSTRING(bdb_modrdn)
 364                                         ": wr to children of entry \"\" OK\n",
 365                                         0, 0, 0 );
 366
 367                                 p_dn.bv_val = "";
 368                                 p_dn.bv_len = 0;
 369
 370                                 Debug( LDAP_DEBUG_TRACE,
 371                                         LDAP_XSTRING(bdb_modrdn)
 372                                         ": parent dn=\"\"\n",
 373                                         0, 0, 0 );
 374
 375                         } else {
 376                                 Debug( LDAP_DEBUG_TRACE,
 377                                         LDAP_XSTRING(bdb_modrdn)
 378                                         ": no parent, not root "
 379                                         "& \"\" is not suffix\n",
 380                                         0, 0, 0);
 381                                 rs->sr_text = "no write access to old parent";
 382                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 383                                 goto return_results;
 384                         }
 385                 }
 386         }
 387
 388         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 389
 390         if ( op->oq_modrdn.rs_newSup != NULL ) {
 391                 Debug( LDAP_DEBUG_TRACE,
 392                         LDAP_XSTRING(bdb_modrdn)
 393                         ": new parent \"%s\" requested...\n",
 394                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 395
 396                 /*  newSuperior == oldParent? */
 397                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 398                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 399                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 400                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 401                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 402                 }
 403         }
 404
 405         if ( op->oq_modrdn.rs_newSup != NULL ) {
 406                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 407                         np_dn = op->oq_modrdn.rs_newSup;
 408                         np_ndn = op->oq_modrdn.rs_nnewSup;
 409
 410                         /* newSuperior == oldParent? - checked above */
 411                         /* newSuperior == entry being moved?, if so ==> ERROR */
 412                         if ( dnIsSuffix( np_ndn, &e->e_nname )) {
 413                                 rs->sr_err = LDAP_NAMING_VIOLATION;
 414                                 rs->sr_text = "new superior is invalid";
 415                                 goto return_results;
 416                         }
 417                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 418
 419                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 420                                 &neip, 0, locker, &nplock );
 421
 422                         switch( rs->sr_err ) {
 423                         case 0: np = neip->bei_e;
 424                         case DB_NOTFOUND:
 425                                 break;
 426                         case DB_LOCK_DEADLOCK:
 427                         case DB_LOCK_NOTGRANTED:
 428                                 goto retry;
 429                         case LDAP_BUSY:
 430                                 rs->sr_text = "ldap server busy";
 431                                 goto return_results;
 432                         default:
 433                                 rs->sr_err = LDAP_OTHER;
 434                                 rs->sr_text = "internal error";
 435                                 goto return_results;
 436                         }
 437
 438                         if( np == NULL) {
 439                                 Debug( LDAP_DEBUG_TRACE,
 440                                         LDAP_XSTRING(bdb_modrdn)
 441                                         ": newSup(ndn=%s) not here!\n",
 442                                         np_ndn->bv_val, 0, 0);
 443                                 rs->sr_text = "new superior not found";
 444                                 rs->sr_err = LDAP_OTHER;
 445                                 goto return_results;
 446                         }
 447
 448                         Debug( LDAP_DEBUG_TRACE,
 449                                 LDAP_XSTRING(bdb_modrdn)
 450                                 ": wr to new parent OK np=%p, id=%ld\n",
 451                                 (void *) np, (long) np->e_id, 0 );
 452
 453                         /* check newSuperior for "children" acl */
 454                         rs->sr_err = access_allowed( op, np, children,
 455                                 NULL, ACL_WADD, NULL );
 456
 457                         if( ! rs->sr_err ) {
 458                                 switch( opinfo.boi_err ) {
 459                                 case DB_LOCK_DEADLOCK:
 460                                 case DB_LOCK_NOTGRANTED:
 461                                         goto retry;
 462                                 }
 463
 464                                 Debug( LDAP_DEBUG_TRACE,
 465                                         LDAP_XSTRING(bdb_modrdn)
 466                                         ": no wr to newSup children\n",
 467                                         0, 0, 0 );
 468                                 rs->sr_text = "no write access to new superior's children";
 469                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 470                                 goto return_results;
 471                         }
 472
 473                         if ( is_entry_alias( np ) ) {
 474                                 /* parent is an alias, don't allow add */
 475                                 Debug( LDAP_DEBUG_TRACE,
 476                                         LDAP_XSTRING(bdb_modrdn)
 477                                         ": entry is alias\n",
 478                                         0, 0, 0 );
 479                                 rs->sr_text = "new superior is an alias";
 480                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 481                                 goto return_results;
 482                         }
 483
 484                         if ( is_entry_referral( np ) ) {
 485                                 /* parent is a referral, don't allow add */
 486                                 Debug( LDAP_DEBUG_TRACE,
 487                                         LDAP_XSTRING(bdb_modrdn)
 488                                         ": entry is referral\n",
 489                                         0, 0, 0 );
 490                                 rs->sr_text = "new superior is a referral";
 491                                 rs->sr_err = LDAP_OTHER;
 492                                 goto return_results;
 493                         }
 494
 495                 } else {
 496                         if ( isroot == -1 ) {
 497                                 isroot = be_isroot( op );
 498                         }
 499
 500                         np_dn = NULL;
 501
 502                         /* no parent, modrdn entry directly under root */
 503                         if ( ! isroot ) {
 504                                 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 505                                         || be_isupdate( op ) ) {
 506                                         np = (Entry *)&slap_entry_root;
 507
 508                                         /* check parent for "children" acl */
 509                                         rs->sr_err = access_allowed( op, np,
 510                                                 children, NULL, ACL_WADD, NULL );
 511
 512                                         np = NULL;
 513
 514                                         if ( ! rs->sr_err ) {
 515                                                 switch( opinfo.boi_err ) {
 516                                                 case DB_LOCK_DEADLOCK:
 517                                                 case DB_LOCK_NOTGRANTED:
 518                                                         goto retry;
 519                                                 }
 520
 521                                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 522                                                 Debug( LDAP_DEBUG_TRACE,
 523                                                         "no access to new superior\n",
 524                                                         0, 0, 0 );
 525                                                 rs->sr_text =
 526                                                         "no write access to new superior's children";
 527                                                 goto return_results;
 528                                         }
 529
 530                                         Debug( LDAP_DEBUG_TRACE,
 531                                                 LDAP_XSTRING(bdb_modrdn)
 532                                                 ": wr to children "
 533                                                 "of entry \"\" OK\n",
 534                                                 0, 0, 0 );
 535
 536                                 } else {
 537                                         Debug( LDAP_DEBUG_TRACE,
 538                                                 LDAP_XSTRING(bdb_modrdn)
 539                                                 ": new superior=\"\", not root "
 540                                                 "& \"\" is not suffix\n",
 541                                                 0, 0, 0 );
 542                                         rs->sr_text = "no write access to new superior's children";
 543                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 544                                         goto return_results;
 545                                 }
 546                         }
 547
 548                         Debug( LDAP_DEBUG_TRACE,
 549                                 LDAP_XSTRING(bdb_modrdn)
 550                                 ": new superior=\"\"\n",
 551                                 0, 0, 0 );
 552                 }
 553
 554                 Debug( LDAP_DEBUG_TRACE,
 555                         LDAP_XSTRING(bdb_modrdn)
 556                         ": wr to new parent's children OK\n",
 557                         0, 0, 0 );
 558
 559                 new_parent_dn = np_dn;
 560         }
 561
 562         /* Build target dn and make sure target entry doesn't exist already. */
 563         if (!new_dn.bv_val) {
 564                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 565         }
 566
 567         if (!new_ndn.bv_val) {
 568                 struct berval bv = {0, NULL};
 569                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 570                 ber_dupbv( &new_ndn, &bv );
 571         }
 572
 573         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": new ndn=%s\n",
 574                 new_ndn.bv_val, 0, 0 );
 575
 576         /* Shortcut the search */
 577         nei = neip ? neip : eip;
 578         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 579         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 580         switch( rs->sr_err ) {
 581         case DB_LOCK_DEADLOCK:
 582         case DB_LOCK_NOTGRANTED:
 583                 goto retry;
 584         case DB_NOTFOUND:
 585                 break;
 586         case 0:
 587                 rs->sr_err = LDAP_ALREADY_EXISTS;
 588                 goto return_results;
 589         default:
 590                 rs->sr_err = LDAP_OTHER;
 591                 rs->sr_text = "internal error";
 592                 goto return_results;
 593         }
 594
 595         /* Get attribute type and attribute value of our new rdn, we will
 596          * need to add that to our new entry
 597          */
 598         if ( !new_rdn && ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
 599                 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 600         {
 601                 Debug( LDAP_DEBUG_TRACE,
 602                         LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 603                         "type(s)/values(s) of newrdn\n",
 604                         0, 0, 0 );
 605                 rs->sr_err = LDAP_INVALID_DN_SYNTAX;
 606                 rs->sr_text = "unknown type(s) used in RDN";
 607                 goto return_results;
 608         }
 609
 610         Debug( LDAP_DEBUG_TRACE,
 611                 LDAP_XSTRING(bdb_modrdn)
 612                 ": new_rdn_type=\"%s\", new_rdn_val=\"%s\"\n",
 613                 new_rdn[ 0 ]->la_attr.bv_val,
 614                 new_rdn[ 0 ]->la_value.bv_val, 0 );
 615
 616         if ( op->oq_modrdn.rs_deleteoldrdn ) {
 617                 if ( !old_rdn && ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
 618                         (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 619                 {
 620                         Debug( LDAP_DEBUG_TRACE,
 621                                 LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 622                                 "the old_rdn type(s)/value(s)\n",
 623                                 0, 0, 0 );
 624                         rs->sr_err = LDAP_OTHER;
 625                         rs->sr_text = "cannot parse RDN from old DN";
 626                         goto return_results;
 627                 }
 628         }
 629
 630         /* prepare modlist of modifications from old/new rdn */
 631         if (!mod) {
 632                 rs->sr_err = slap_modrdn2mods( op, rs, e, old_rdn, new_rdn, &mod );
 633                 if ( rs->sr_err != LDAP_SUCCESS ) {
 634                         goto return_results;
 635                 }
 636         }
 637
 638         if( op->o_preread ) {
 639                 if( preread_ctrl == NULL ) {
 640                         preread_ctrl = &ctrls[num_ctrls++];
 641                         ctrls[num_ctrls] = NULL;
 642                 }
 643                 if( slap_read_controls( op, rs, e,
 644                         &slap_pre_read_bv, preread_ctrl ) )
 645                 {
 646                         Debug( LDAP_DEBUG_TRACE,
 647                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 648                                 ": post-read failed!\n", 0, 0, 0 );
 649                         goto return_results;
 650                 }
 651         }
 652
 653         /* nested transaction */
 654         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 655         rs->sr_text = NULL;
 656         if( rs->sr_err != 0 ) {
 657                 Debug( LDAP_DEBUG_TRACE,
 658                         LDAP_XSTRING(bdb_modrdn)
 659                         ": txn_begin(2) failed: %s (%d)\n",
 660                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 661                 rs->sr_err = LDAP_OTHER;
 662                 rs->sr_text = "internal error";
 663                 goto return_results;
 664         }
 665
 666         /* delete old DN */
 667         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 668         if ( rs->sr_err != 0 ) {
 669                 Debug(LDAP_DEBUG_TRACE,
 670                         "<=- " LDAP_XSTRING(bdb_modrdn)
 671                         ": dn2id del failed: %s (%d)\n",
 672                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 673                 switch( rs->sr_err ) {
 674                 case DB_LOCK_DEADLOCK:
 675                 case DB_LOCK_NOTGRANTED:
 676                         goto retry;
 677                 }
 678                 rs->sr_err = LDAP_OTHER;
 679                 rs->sr_text = "DN index delete fail";
 680                 goto return_results;
 681         }
 682
 683         /* copy the entry, then override some fields */
 684         dummy = *e;
 685         dummy.e_name = new_dn;
 686         dummy.e_nname = new_ndn;
 687         dummy.e_attrs = NULL;
 688
 689         /* add new DN */
 690         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 691         if ( rs->sr_err != 0 ) {
 692                 Debug(LDAP_DEBUG_TRACE,
 693                         "<=- " LDAP_XSTRING(bdb_modrdn)
 694                         ": dn2id add failed: %s (%d)\n",
 695                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 696                 switch( rs->sr_err ) {
 697                 case DB_LOCK_DEADLOCK:
 698                 case DB_LOCK_NOTGRANTED:
 699                         goto retry;
 700                 }
 701                 rs->sr_err = LDAP_OTHER;
 702                 rs->sr_text = "DN index add failed";
 703                 goto return_results;
 704         }
 705
 706         dummy.e_attrs = e->e_attrs;
 707
 708         /* modify entry */
 709         rs->sr_err = bdb_modify_internal( op, lt2, &mod[0], &dummy,
 710                 &rs->sr_text, textbuf, textlen );
 711         if( rs->sr_err != LDAP_SUCCESS ) {
 712                 Debug(LDAP_DEBUG_TRACE,
 713                         "<=- " LDAP_XSTRING(bdb_modrdn)
 714                         ": modify failed: %s (%d)\n",
 715                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 716                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 717                         rs->sr_err = opinfo.boi_err;
 718                 }
 719                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 720                 switch( rs->sr_err ) {
 721                 case DB_LOCK_DEADLOCK:
 722                 case DB_LOCK_NOTGRANTED:
 723                         goto retry;
 724                 }
 725                 goto return_results;
 726         }
 727
 728         /* id2entry index */
 729         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 730         if ( rs->sr_err != 0 ) {
 731                 Debug(LDAP_DEBUG_TRACE,
 732                         "<=- " LDAP_XSTRING(bdb_modrdn)
 733                         ": id2entry failed: %s (%d)\n",
 734                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 735                 switch( rs->sr_err ) {
 736                 case DB_LOCK_DEADLOCK:
 737                 case DB_LOCK_NOTGRANTED:
 738                         goto retry;
 739                 }
 740                 rs->sr_err = LDAP_OTHER;
 741                 rs->sr_text = "entry update failed";
 742                 goto return_results;
 743         }
 744
 745         if ( p_ndn.bv_len != 0 ) {
 746                 parent_is_glue = is_entry_glue(p);
 747                 rs->sr_err = bdb_cache_children( op, lt2, p );
 748                 if ( rs->sr_err != DB_NOTFOUND ) {
 749                         switch( rs->sr_err ) {
 750                         case DB_LOCK_DEADLOCK:
 751                         case DB_LOCK_NOTGRANTED:
 752                                 goto retry;
 753                         case 0:
 754                                 break;
 755                         default:
 756                                 Debug(LDAP_DEBUG_ARGS,
 757                                         "<=- " LDAP_XSTRING(bdb_modrdn)
 758                                         ": has_children failed: %s (%d)\n",
 759                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 760                                 rs->sr_err = LDAP_OTHER;
 761                                 rs->sr_text = "internal error";
 762                                 goto return_results;
 763                         }
 764                         parent_is_leaf = 1;
 765                 }
 766                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 767                 p = NULL;
 768         }
 769
 770         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 771                 rs->sr_err = LDAP_OTHER;
 772                 rs->sr_text = "txn_commit(2) failed";
 773                 goto return_results;
 774         }
 775
 776         if( op->o_postread ) {
 777                 if( postread_ctrl == NULL ) {
 778                         postread_ctrl = &ctrls[num_ctrls++];
 779                         ctrls[num_ctrls] = NULL;
 780                 }
 781                 if( slap_read_controls( op, rs, &dummy,
 782                         &slap_post_read_bv, postread_ctrl ) )
 783                 {
 784                         Debug( LDAP_DEBUG_TRACE,
 785                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 786                                 ": post-read failed!\n", 0, 0, 0 );
 787                         goto return_results;
 788                 }
 789         }
 790
 791         if( op->o_noop ) {
 792                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 793                         rs->sr_text = "txn_abort (no-op) failed";
 794                 } else {
 795                         rs->sr_err = LDAP_SUCCESS;
 796                         goto return_results;
 797                 }
 798
 799         } else {
 800                 rc = bdb_cache_modrdn( bdb, e, &op->orr_nnewrdn, &dummy, neip,
 801                         locker, &lock );
 802                 switch( rc ) {
 803                 case DB_LOCK_DEADLOCK:
 804                 case DB_LOCK_NOTGRANTED:
 805                         goto retry;
 806                 }
 807                 dummy.e_attrs = NULL;
 808                 new_dn.bv_val = NULL;
 809                 new_ndn.bv_val = NULL;
 810
 811                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 812                         rs->sr_text = "txn_commit failed";
 813                 } else {
 814                         rs->sr_err = LDAP_SUCCESS;
 815                 }
 816         }
 817
 818         ltid = NULL;
 819         op->o_private = NULL;
 820
 821         if( rs->sr_err != LDAP_SUCCESS ) {
 822                 Debug( LDAP_DEBUG_TRACE,
 823                         LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
 824                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 825                 rs->sr_err = LDAP_OTHER;
 826
 827                 goto return_results;
 828         }
 829
 830         Debug(LDAP_DEBUG_TRACE,
 831                 LDAP_XSTRING(bdb_modrdn)
 832                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 833                 op->o_noop ? " (no-op)" : "",
 834                 dummy.e_id, op->o_req_dn.bv_val );
 835         rs->sr_text = NULL;
 836         if( num_ctrls ) rs->sr_ctrls = ctrls;
 837
 838 return_results:
 839         if ( dummy.e_attrs ) {
 840                 attrs_free( dummy.e_attrs );
 841         }
 842         send_ldap_result( op, rs );
 843
 844         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 845                 ldap_pvt_thread_yield();
 846                 TXN_CHECKPOINT( bdb->bi_dbenv,
 847                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 848         }
 849
 850         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 851                 op->o_delete_glue_parent = 1;
 852         }
 853
 854 done:
 855         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 856         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 857
 858         /* LDAP v2 supporting correct attribute handling. */
 859         if ( new_rdn != NULL ) {
 860                 ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
 861         }
 862         if ( old_rdn != NULL ) {
 863                 ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
 864         }
 865         if( mod != NULL ) {
 866                 Modifications *tmp;
 867                 for (; mod; mod=tmp ) {
 868                         tmp = mod->sml_next;
 869                         /* slap_modrdn2mods does things one way,
 870                          * slap_mods_opattrs does it differently
 871                          */
 872                         if ( mod->sml_op != SLAP_MOD_SOFTADD &&
 873                                 mod->sml_op != LDAP_MOD_DELETE ) break;
 874                         if ( mod->sml_nvalues ) free( mod->sml_nvalues[0].bv_val );
 875                         free( mod );
 876                 }
 877                 slap_mods_free( mod );
 878         }
 879
 880         /* LDAP v3 Support */
 881         if( np != NULL ) {
 882                 /* free new parent and reader lock */
 883                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 884         }
 885
 886         if( p != NULL ) {
 887                 /* free parent and reader lock */
 888                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 889         }
 890
 891         /* free entry */
 892         if( e != NULL ) {
 893                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 894         }
 895
 896         if( ltid != NULL ) {
 897                 TXN_ABORT( ltid );
 898                 op->o_private = NULL;
 899         }
 900
 901         if( preread_ctrl != NULL ) {
 902                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 903                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 904         }
 905         if( postread_ctrl != NULL ) {
 906                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 907                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 908         }
 909         return rs->sr_err;
 910 }