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