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 2000-2004 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;
  43         Entry dummy = {0};
  44
  45         ID                      id;
  46
  47         Entry           *np = NULL;                     /* newSuperior Entry */
  48         struct berval   *np_dn = NULL;                  /* newSuperior dn */
  49         struct berval   *np_ndn = NULL;                 /* newSuperior ndn */
  50         struct berval   *new_parent_dn = NULL;  /* np_dn, p_dn, or NULL */
  51
  52         /* Used to interface with bdb_modify_internal() */
  53         Modifications   *mod = NULL;            /* Used to delete old rdn */
  54
  55         int             manageDSAit = get_manageDSAit( op );
  56
  57         u_int32_t       locker = 0;
  58         DB_LOCK         lock, plock, nplock;
  59
  60         int             num_retries = 0;
  61
  62         LDAPControl **preread_ctrl = NULL;
  63         LDAPControl **postread_ctrl = NULL;
  64         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  65         int num_ctrls = 0;
  66
  67         Operation *ps_list;
  68         struct psid_entry *pm_list, *pm_prev;
  69         int     rc;
  70         EntryInfo       *suffix_ei;
  71         Entry           *ctxcsn_e;
  72         int                     ctxcsn_added = 0;
  73
  74         int parent_is_glue = 0;
  75         int parent_is_leaf = 0;
  76
  77         ctrls[num_ctrls] = NULL;
  78
  79         Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn) "(%s,%s,%s)\n",
  80                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  81                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  82
  83         if( 0 ) {
  84 retry:  /* transaction retry */
  85                 if ( dummy.e_attrs ) {
  86                         attrs_free( dummy.e_attrs );
  87                         dummy.e_attrs = NULL;
  88                 }
  89                 if (e != NULL) {
  90                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
  91                         e = NULL;
  92                 }
  93                 if (p != NULL) {
  94                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
  95                         p = NULL;
  96                 }
  97                 if (np != NULL) {
  98                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
  99                         np = NULL;
 100                 }
 101                 Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn)
 102                                 ": retrying...\n", 0, 0, 0 );
 103                 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 104                 while ( pm_list != NULL ) {
 105                         LDAP_LIST_REMOVE ( pm_list, ps_link );
 106                         pm_prev = pm_list;
 107                         pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 108                         ch_free( pm_prev );
 109                 }
 110
 111                 rs->sr_err = TXN_ABORT( ltid );
 112                 ltid = NULL;
 113                 op->o_private = NULL;
 114                 op->o_do_not_cache = opinfo.boi_acl_cache;
 115                 if( rs->sr_err != 0 ) {
 116                         rs->sr_err = LDAP_OTHER;
 117                         rs->sr_text = "internal error";
 118                         goto return_results;
 119                 }
 120                 parent_is_glue = 0;
 121                 parent_is_leaf = 0;
 122                 ldap_pvt_thread_yield();
 123                 bdb_trans_backoff( ++num_retries );
 124         }
 125
 126         /* begin transaction */
 127         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 128                 bdb->bi_db_opflags );
 129         rs->sr_text = NULL;
 130         if( rs->sr_err != 0 ) {
 131                 Debug( LDAP_DEBUG_TRACE,
 132                         LDAP_XSTRING(bdb_modrdn) ": txn_begin failed: "
 133                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 134                 rs->sr_err = LDAP_OTHER;
 135                 rs->sr_text = "internal error";
 136                 goto return_results;
 137         }
 138
 139         locker = TXN_ID ( ltid );
 140
 141         opinfo.boi_bdb = op->o_bd;
 142         opinfo.boi_txn = ltid;
 143         opinfo.boi_locker = locker;
 144         opinfo.boi_err = 0;
 145         opinfo.boi_acl_cache = op->o_do_not_cache;
 146         op->o_private = &opinfo;
 147
 148         /* get entry */
 149         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 150                 locker, &lock );
 151
 152         switch( rs->sr_err ) {
 153         case 0:
 154         case DB_NOTFOUND:
 155                 break;
 156         case DB_LOCK_DEADLOCK:
 157         case DB_LOCK_NOTGRANTED:
 158                 goto retry;
 159         case LDAP_BUSY:
 160                 rs->sr_text = "ldap server busy";
 161                 goto return_results;
 162         default:
 163                 rs->sr_err = LDAP_OTHER;
 164                 rs->sr_text = "internal error";
 165                 goto return_results;
 166         }
 167
 168         e = ei->bei_e;
 169         /* FIXME: dn2entry() should return non-glue entry */
 170         if (( rs->sr_err == DB_NOTFOUND ) ||
 171                 ( !manageDSAit && e && is_entry_glue( e )))
 172         {
 173                 BerVarray deref = NULL;
 174                 if( e != NULL ) {
 175                         rs->sr_matched = ch_strdup( e->e_dn );
 176                         rs->sr_ref = is_entry_referral( e )
 177                                 ? get_entry_referrals( op, e )
 178                                 : NULL;
 179                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 180                         e = NULL;
 181
 182                 } else {
 183                         if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 184                                 syncinfo_t *si;
 185                                 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
 186                                         struct berval tmpbv;
 187                                         ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
 188                                         ber_bvarray_add( &deref, &tmpbv );
 189                 }
 190                         } else {
 191                                 deref = default_referral;
 192                         }
 193                         rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
 194                                         LDAP_SCOPE_DEFAULT );
 195                 }
 196
 197                 rs->sr_err = LDAP_REFERRAL;
 198                 send_ldap_result( op, rs );
 199
 200                 ber_bvarray_free( rs->sr_ref );
 201                 if ( deref != default_referral ) {
 202                         ber_bvarray_free( deref );
 203                 }
 204                 free( (char *)rs->sr_matched );
 205                 rs->sr_ref = NULL;
 206                 rs->sr_matched = NULL;
 207
 208                 goto done;
 209         }
 210
 211         if ( get_assert( op ) &&
 212                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 213         {
 214                 rs->sr_err = LDAP_ASSERTION_FAILED;
 215                 goto return_results;
 216         }
 217
 218         /* check write on old entry */
 219         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 220         if ( ! rs->sr_err ) {
 221                 switch( opinfo.boi_err ) {
 222                 case DB_LOCK_DEADLOCK:
 223                 case DB_LOCK_NOTGRANTED:
 224                         goto retry;
 225                 }
 226
 227                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 228                         0, 0 );
 229                 rs->sr_text = "no write access to old entry";
 230                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 231                 goto return_results;
 232         }
 233
 234 #ifndef BDB_HIER
 235         rs->sr_err = bdb_cache_children( op, ltid, e );
 236         if ( rs->sr_err != DB_NOTFOUND ) {
 237                 switch( rs->sr_err ) {
 238                 case DB_LOCK_DEADLOCK:
 239                 case DB_LOCK_NOTGRANTED:
 240                         goto retry;
 241                 case 0:
 242                         Debug(LDAP_DEBUG_ARGS,
 243                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 244                                 ": non-leaf %s\n",
 245                                 op->o_req_dn.bv_val, 0, 0);
 246                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 247                         rs->sr_text = "subtree rename not supported";
 248                         break;
 249                 default:
 250                         Debug(LDAP_DEBUG_ARGS,
 251                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 252                                 ": has_children failed: %s (%d)\n",
 253                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 254                         rs->sr_err = LDAP_OTHER;
 255                         rs->sr_text = "internal error";
 256                 }
 257                 goto return_results;
 258         }
 259         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 260 #endif
 261
 262         if (!manageDSAit && is_entry_referral( e ) ) {
 263                 /* parent is a referral, don't allow add */
 264                 rs->sr_ref = get_entry_referrals( op, e );
 265
 266                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 267                         ": entry %s is referral\n", e->e_dn, 0, 0 );
 268
 269                 rs->sr_err = LDAP_REFERRAL,
 270                 rs->sr_matched = e->e_name.bv_val;
 271                 send_ldap_result( op, rs );
 272
 273                 ber_bvarray_free( rs->sr_ref );
 274                 rs->sr_ref = NULL;
 275                 rs->sr_matched = NULL;
 276                 goto done;
 277         }
 278
 279         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 280                 p_ndn = slap_empty_bv;
 281         } else {
 282                 dnParent( &e->e_nname, &p_ndn );
 283         }
 284         np_ndn = &p_ndn;
 285         if ( p_ndn.bv_len != 0 ) {
 286                 /* Make sure parent entry exist and we can write its
 287                  * children.
 288                  */
 289                 eip = ei->bei_parent;
 290                 rs->sr_err = bdb_cache_find_id( op, ltid,
 291                         eip->bei_id, &eip, 0, locker, &plock );
 292
 293                 switch( rs->sr_err ) {
 294                 case 0:
 295                 case DB_NOTFOUND:
 296                         break;
 297                 case DB_LOCK_DEADLOCK:
 298                 case DB_LOCK_NOTGRANTED:
 299                         goto retry;
 300                 case LDAP_BUSY:
 301                         rs->sr_text = "ldap server busy";
 302                         goto return_results;
 303                 default:
 304                         rs->sr_err = LDAP_OTHER;
 305                         rs->sr_text = "internal error";
 306                         goto return_results;
 307                 }
 308
 309                 p = eip->bei_e;
 310                 if( p == NULL) {
 311                         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 312                                 ": parent does not exist\n", 0, 0, 0);
 313                         rs->sr_err = LDAP_OTHER;
 314                         rs->sr_text = "old entry's parent does not exist";
 315                         goto return_results;
 316                 }
 317
 318                 /* check parent for "children" acl */
 319                 rs->sr_err = access_allowed( op, p,
 320                         children, NULL, ACL_WRITE, NULL );
 321
 322                 if ( ! rs->sr_err ) {
 323                         switch( opinfo.boi_err ) {
 324                         case DB_LOCK_DEADLOCK:
 325                         case DB_LOCK_NOTGRANTED:
 326                                 goto retry;
 327                         }
 328
 329                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 330                         Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 331                                 0, 0 );
 332                         rs->sr_text = "no write access to old parent's children";
 333                         goto return_results;
 334                 }
 335
 336                 Debug( LDAP_DEBUG_TRACE,
 337                         LDAP_XSTRING(bdb_modrdn) ": wr to children "
 338                         "of entry %s OK\n", p_ndn.bv_val, 0, 0 );
 339
 340                 if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 341                         p_dn = slap_empty_bv;
 342                 } else {
 343                         dnParent( &e->e_name, &p_dn );
 344                 }
 345
 346                 Debug( LDAP_DEBUG_TRACE,
 347                         LDAP_XSTRING(bdb_modrdn) ": parent dn=%s\n",
 348                         p_dn.bv_val, 0, 0 );
 349
 350         } else {
 351                 /* no parent, modrdn entry directly under root */
 352                 isroot = be_isroot( op );
 353                 if ( ! isroot ) {
 354                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 355                                 || be_shadow_update( op ) ) {
 356
 357                                 p = (Entry *)&slap_entry_root;
 358
 359                                 /* check parent for "children" acl */
 360                                 rs->sr_err = access_allowed( op, p,
 361                                         children, NULL, ACL_WRITE, NULL );
 362
 363                                 p = NULL;
 364
 365                                 if ( ! rs->sr_err ) {
 366                                         switch( opinfo.boi_err ) {
 367                                         case DB_LOCK_DEADLOCK:
 368                                         case DB_LOCK_NOTGRANTED:
 369                                                 goto retry;
 370                                         }
 371
 372                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 373                                         Debug( LDAP_DEBUG_TRACE,
 374                                                 "no access to parent\n",
 375                                                 0, 0, 0 );
 376                                         rs->sr_text = "no write access to old parent";
 377                                         goto return_results;
 378                                 }
 379
 380                                 Debug( LDAP_DEBUG_TRACE,
 381                                         LDAP_XSTRING(bdb_modrdn)
 382                                         ": wr to children of entry \"\" OK\n",
 383                                         0, 0, 0 );
 384
 385                                 p_dn.bv_val = "";
 386                                 p_dn.bv_len = 0;
 387
 388                                 Debug( LDAP_DEBUG_TRACE,
 389                                         LDAP_XSTRING(bdb_modrdn)
 390                                         ": parent dn=\"\"\n",
 391                                         0, 0, 0 );
 392
 393                         } else {
 394                                 Debug( LDAP_DEBUG_TRACE,
 395                                         LDAP_XSTRING(bdb_modrdn)
 396                                         ": no parent, not root "
 397                                         "& \"\" is not suffix\n",
 398                                         0, 0, 0);
 399                                 rs->sr_text = "no write access to old parent";
 400                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 401                                 goto return_results;
 402                         }
 403                 }
 404         }
 405
 406         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 407
 408         if ( op->oq_modrdn.rs_newSup != NULL ) {
 409                 Debug( LDAP_DEBUG_TRACE,
 410                         LDAP_XSTRING(bdb_modrdn)
 411                         ": new parent \"%s\" requested...\n",
 412                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 413
 414                 /*  newSuperior == oldParent? */
 415                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 416                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 417                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 418                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 419                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 420                 }
 421         }
 422
 423         if ( op->oq_modrdn.rs_newSup != NULL ) {
 424                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 425                         np_dn = op->oq_modrdn.rs_newSup;
 426                         np_ndn = op->oq_modrdn.rs_nnewSup;
 427
 428                         /* newSuperior == oldParent?, if so ==> ERROR */
 429                         /* newSuperior == entry being moved?, if so ==> ERROR */
 430                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 431
 432                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 433                                 &neip, 0, locker, &nplock );
 434
 435                         switch( rs->sr_err ) {
 436                         case 0: np = neip->bei_e;
 437                         case DB_NOTFOUND:
 438                                 break;
 439                         case DB_LOCK_DEADLOCK:
 440                         case DB_LOCK_NOTGRANTED:
 441                                 goto retry;
 442                         case LDAP_BUSY:
 443                                 rs->sr_text = "ldap server busy";
 444                                 goto return_results;
 445                         default:
 446                                 rs->sr_err = LDAP_OTHER;
 447                                 rs->sr_text = "internal error";
 448                                 goto return_results;
 449                         }
 450
 451                         if( np == NULL) {
 452                                 Debug( LDAP_DEBUG_TRACE,
 453                                         LDAP_XSTRING(bdb_modrdn)
 454                                         ": newSup(ndn=%s) not here!\n",
 455                                         np_ndn->bv_val, 0, 0);
 456                                 rs->sr_text = "new superior not found";
 457                                 rs->sr_err = LDAP_OTHER;
 458                                 goto return_results;
 459                         }
 460
 461                         Debug( LDAP_DEBUG_TRACE,
 462                                 LDAP_XSTRING(bdb_modrdn)
 463                                 ": wr to new parent OK np=%p, id=%ld\n",
 464                                 (void *) np, (long) np->e_id, 0 );
 465
 466                         /* check newSuperior for "children" acl */
 467                         rs->sr_err = access_allowed( op, np, children,
 468                                 NULL, ACL_WRITE, NULL );
 469
 470                         if( ! rs->sr_err ) {
 471                                 switch( opinfo.boi_err ) {
 472                                 case DB_LOCK_DEADLOCK:
 473                                 case DB_LOCK_NOTGRANTED:
 474                                         goto retry;
 475                                 }
 476
 477                                 Debug( LDAP_DEBUG_TRACE,
 478                                         LDAP_XSTRING(bdb_modrdn)
 479                                         ": no wr to newSup children\n",
 480                                         0, 0, 0 );
 481                                 rs->sr_text = "no write access to new superior's children";
 482                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 483                                 goto return_results;
 484                         }
 485
 486                         if ( is_entry_alias( np ) ) {
 487                                 /* parent is an alias, don't allow add */
 488                                 Debug( LDAP_DEBUG_TRACE,
 489                                         LDAP_XSTRING(bdb_modrdn)
 490                                         ": entry is alias\n",
 491                                         0, 0, 0 );
 492                                 rs->sr_text = "new superior is an alias";
 493                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 494                                 goto return_results;
 495                         }
 496
 497                         if ( is_entry_referral( np ) ) {
 498                                 /* parent is a referral, don't allow add */
 499                                 Debug( LDAP_DEBUG_TRACE,
 500                                         LDAP_XSTRING(bdb_modrdn)
 501                                         ": entry is referral\n",
 502                                         0, 0, 0 );
 503                                 rs->sr_text = "new superior is a referral";
 504                                 rs->sr_err = LDAP_OTHER;
 505                                 goto return_results;
 506                         }
 507
 508                 } else {
 509                         if ( isroot == -1 ) {
 510                                 isroot = be_isroot( op );
 511                         }
 512
 513                         np_dn = NULL;
 514
 515                         /* no parent, modrdn entry directly under root */
 516                         if ( ! isroot ) {
 517                                 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 518                                         || be_isupdate( op ) ) {
 519                                         np = (Entry *)&slap_entry_root;
 520
 521                                         /* check parent for "children" acl */
 522                                         rs->sr_err = access_allowed( op, np,
 523                                                 children, NULL, ACL_WRITE, NULL );
 524
 525                                         np = NULL;
 526
 527                                         if ( ! rs->sr_err ) {
 528                                                 switch( opinfo.boi_err ) {
 529                                                 case DB_LOCK_DEADLOCK:
 530                                                 case DB_LOCK_NOTGRANTED:
 531                                                         goto retry;
 532                                                 }
 533
 534                                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 535                                                 Debug( LDAP_DEBUG_TRACE,
 536                                                         "no access to new superior\n",
 537                                                         0, 0, 0 );
 538                                                 rs->sr_text =
 539                                                         "no write access to new superior's children";
 540                                                 goto return_results;
 541                                         }
 542
 543                                         Debug( LDAP_DEBUG_TRACE,
 544                                                 LDAP_XSTRING(bdb_modrdn)
 545                                                 ": wr to children "
 546                                                 "of entry \"\" OK\n",
 547                                                 0, 0, 0 );
 548
 549                                 } else {
 550                                         Debug( LDAP_DEBUG_TRACE,
 551                                                 LDAP_XSTRING(bdb_modrdn)
 552                                                 ": new superior=\"\", not root "
 553                                                 "& \"\" is not suffix\n",
 554                                                 0, 0, 0 );
 555                                         rs->sr_text = "no write access to new superior's children";
 556                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 557                                         goto return_results;
 558                                 }
 559                         }
 560
 561                         Debug( LDAP_DEBUG_TRACE,
 562                                 LDAP_XSTRING(bdb_modrdn)
 563                                 ": new superior=\"\"\n",
 564                                 0, 0, 0 );
 565                 }
 566
 567                 Debug( LDAP_DEBUG_TRACE,
 568                         LDAP_XSTRING(bdb_modrdn)
 569                         ": wr to new parent's children OK\n",
 570                         0, 0, 0 );
 571
 572                 new_parent_dn = np_dn;
 573         }
 574
 575         /* Build target dn and make sure target entry doesn't exist already. */
 576         if (!new_dn.bv_val) {
 577                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 578         }
 579
 580         if (!new_ndn.bv_val) {
 581                 struct berval bv = {0, NULL};
 582                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 583                 ber_dupbv( &new_ndn, &bv );
 584         }
 585
 586         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": new ndn=%s\n",
 587                 new_ndn.bv_val, 0, 0 );
 588
 589         /* Shortcut the search */
 590         nei = neip ? neip : eip;
 591         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 592         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 593         switch( rs->sr_err ) {
 594         case DB_LOCK_DEADLOCK:
 595         case DB_LOCK_NOTGRANTED:
 596                 goto retry;
 597         case DB_NOTFOUND:
 598                 break;
 599         case 0:
 600                 rs->sr_err = LDAP_ALREADY_EXISTS;
 601                 goto return_results;
 602         default:
 603                 rs->sr_err = LDAP_OTHER;
 604                 rs->sr_text = "internal error";
 605                 goto return_results;
 606         }
 607
 608         /* Get attribute type and attribute value of our new rdn, we will
 609          * need to add that to our new entry
 610          */
 611         if ( !new_rdn && ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
 612                 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 613         {
 614                 Debug( LDAP_DEBUG_TRACE,
 615                         LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 616                         "type(s)/values(s) of newrdn\n",
 617                         0, 0, 0 );
 618                 rs->sr_err = LDAP_INVALID_DN_SYNTAX;
 619                 rs->sr_text = "unknown type(s) used in RDN";
 620                 goto return_results;
 621         }
 622
 623         Debug( LDAP_DEBUG_TRACE,
 624                 LDAP_XSTRING(bdb_modrdn)
 625                 ": new_rdn_type=\"%s\", new_rdn_val=\"%s\"\n",
 626                 new_rdn[ 0 ]->la_attr.bv_val,
 627                 new_rdn[ 0 ]->la_value.bv_val, 0 );
 628
 629         if ( op->oq_modrdn.rs_deleteoldrdn ) {
 630                 if ( !old_rdn && ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
 631                         (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 632                 {
 633                         Debug( LDAP_DEBUG_TRACE,
 634                                 LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 635                                 "the old_rdn type(s)/value(s)\n",
 636                                 0, 0, 0 );
 637                         rs->sr_err = LDAP_OTHER;
 638                         rs->sr_text = "cannot parse RDN from old DN";
 639                         goto return_results;
 640                 }
 641         }
 642
 643         /* prepare modlist of modifications from old/new rdn */
 644         if (!mod) {
 645                 rs->sr_err = slap_modrdn2mods( op, rs, e, old_rdn, new_rdn, &mod );
 646                 if ( rs->sr_err != LDAP_SUCCESS ) {
 647                         goto return_results;
 648                 }
 649         }
 650
 651         if( op->o_preread ) {
 652                 if( preread_ctrl == NULL ) {
 653                         preread_ctrl = &ctrls[num_ctrls++];
 654                         ctrls[num_ctrls] = NULL;
 655                 }
 656                 if( slap_read_controls( op, rs, e,
 657                         &slap_pre_read_bv, preread_ctrl ) )
 658                 {
 659                         Debug( LDAP_DEBUG_TRACE,
 660                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 661                                 ": post-read failed!\n", 0, 0, 0 );
 662                         goto return_results;
 663                 }
 664         }
 665
 666         /* nested transaction */
 667         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 668         rs->sr_text = NULL;
 669         if( rs->sr_err != 0 ) {
 670                 Debug( LDAP_DEBUG_TRACE,
 671                         LDAP_XSTRING(bdb_modrdn)
 672                         ": txn_begin(2) failed: %s (%d)\n",
 673                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 674                 rs->sr_err = LDAP_OTHER;
 675                 rs->sr_text = "internal error";
 676                 goto return_results;
 677         }
 678
 679         /* delete old DN */
 680         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 681         if ( rs->sr_err != 0 ) {
 682                 Debug(LDAP_DEBUG_TRACE,
 683                         "<=- " LDAP_XSTRING(bdb_modrdn)
 684                         ": dn2id del failed: %s (%d)\n",
 685                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 686                 switch( rs->sr_err ) {
 687                 case DB_LOCK_DEADLOCK:
 688                 case DB_LOCK_NOTGRANTED:
 689                         goto retry;
 690                 }
 691                 rs->sr_err = LDAP_OTHER;
 692                 rs->sr_text = "DN index delete fail";
 693                 goto return_results;
 694         }
 695
 696         /* copy the entry, then override some fields */
 697         dummy = *e;
 698         dummy.e_name = new_dn;
 699         dummy.e_nname = new_ndn;
 700         dummy.e_attrs = NULL;
 701
 702         /* add new DN */
 703         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 704         if ( rs->sr_err != 0 ) {
 705                 Debug(LDAP_DEBUG_TRACE,
 706                         "<=- " LDAP_XSTRING(bdb_modrdn)
 707                         ": dn2id add failed: %s (%d)\n",
 708                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 709                 switch( rs->sr_err ) {
 710                 case DB_LOCK_DEADLOCK:
 711                 case DB_LOCK_NOTGRANTED:
 712                         goto retry;
 713                 }
 714                 rs->sr_err = LDAP_OTHER;
 715                 rs->sr_text = "DN index add failed";
 716                 goto return_results;
 717         }
 718
 719         dummy.e_attrs = e->e_attrs;
 720
 721         if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop && !op->o_no_psearch ) {
 722                 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
 723                 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 724                         rc = bdb_psearch( op, rs, ps_list, &dummy, LDAP_PSEARCH_BY_PREMODIFY );
 725                         if ( rc ) {
 726                                 Debug( LDAP_DEBUG_TRACE,
 727                                         LDAP_XSTRING(bdb_modrdn)
 728                                         ": persistent search failed (%d,%d)\n",
 729                                         rc, rs->sr_err, 0 );
 730                         }
 731                 }
 732                 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
 733         }
 734
 735
 736         /* modify entry */
 737         rs->sr_err = bdb_modify_internal( op, lt2, &mod[0], &dummy,
 738                 &rs->sr_text, textbuf, textlen );
 739         if( rs->sr_err != LDAP_SUCCESS ) {
 740                 Debug(LDAP_DEBUG_TRACE,
 741                         "<=- " LDAP_XSTRING(bdb_modrdn)
 742                         ": modify failed: %s (%d)\n",
 743                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 744                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 745                         rs->sr_err = opinfo.boi_err;
 746                 }
 747                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 748                 switch( rs->sr_err ) {
 749                 case DB_LOCK_DEADLOCK:
 750                 case DB_LOCK_NOTGRANTED:
 751                         goto retry;
 752                 }
 753                 goto return_results;
 754         }
 755
 756         /* id2entry index */
 757         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 758         if ( rs->sr_err != 0 ) {
 759                 Debug(LDAP_DEBUG_TRACE,
 760                         "<=- " LDAP_XSTRING(bdb_modrdn)
 761                         ": id2entry failed: %s (%d)\n",
 762                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 763                 switch( rs->sr_err ) {
 764                 case DB_LOCK_DEADLOCK:
 765                 case DB_LOCK_NOTGRANTED:
 766                         goto retry;
 767                 }
 768                 rs->sr_err = LDAP_OTHER;
 769                 rs->sr_text = "entry update failed";
 770                 goto return_results;
 771         }
 772
 773         if ( p_ndn.bv_len != 0 ) {
 774                 parent_is_glue = is_entry_glue(p);
 775                 rs->sr_err = bdb_cache_children( op, lt2, p );
 776                 if ( rs->sr_err != DB_NOTFOUND ) {
 777                         switch( rs->sr_err ) {
 778                         case DB_LOCK_DEADLOCK:
 779                         case DB_LOCK_NOTGRANTED:
 780                                 goto retry;
 781                         case 0:
 782                                 break;
 783                         default:
 784                                 Debug(LDAP_DEBUG_ARGS,
 785                                         "<=- " LDAP_XSTRING(bdb_modrdn)
 786                                         ": has_children failed: %s (%d)\n",
 787                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 788                                 rs->sr_err = LDAP_OTHER;
 789                                 rs->sr_text = "internal error";
 790                                 goto return_results;
 791                         }
 792                         parent_is_leaf = 1;
 793                 }
 794                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 795                 p = NULL;
 796         }
 797
 798         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 799                 rs->sr_err = LDAP_OTHER;
 800                 rs->sr_text = "txn_commit(2) failed";
 801                 goto return_results;
 802         }
 803
 804         if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 805                 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
 806                         &ctxcsn_e, &ctxcsn_added, locker );
 807                 switch ( rc ) {
 808                 case BDB_CSN_ABORT :
 809                         goto return_results;
 810                 case BDB_CSN_RETRY :
 811                         goto retry;
 812                 }
 813         }
 814
 815         if( op->o_postread ) {
 816                 if( postread_ctrl == NULL ) {
 817                         postread_ctrl = &ctrls[num_ctrls++];
 818                         ctrls[num_ctrls] = NULL;
 819                 }
 820                 if( slap_read_controls( op, rs, &dummy,
 821                         &slap_post_read_bv, postread_ctrl ) )
 822                 {
 823                         Debug( LDAP_DEBUG_TRACE,
 824                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 825                                 ": post-read failed!\n", 0, 0, 0 );
 826                         goto return_results;
 827                 }
 828         }
 829
 830         if( op->o_noop ) {
 831                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 832                         rs->sr_text = "txn_abort (no-op) failed";
 833                 } else {
 834                         rs->sr_err = LDAP_SUCCESS;
 835                         goto return_results;
 836                 }
 837
 838         } else {
 839                 rc = bdb_cache_modrdn( e, &op->orr_nnewrdn, &dummy, neip,
 840                         bdb->bi_dbenv, locker, &lock );
 841                 switch( rc ) {
 842                 case DB_LOCK_DEADLOCK:
 843                 case DB_LOCK_NOTGRANTED:
 844                         goto retry;
 845                 }
 846                 dummy.e_attrs = NULL;
 847                 new_dn.bv_val = NULL;
 848                 new_ndn.bv_val = NULL;
 849
 850                 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 851                         if ( ctxcsn_added ) {
 852                                 bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
 853                                         (struct berval *)&slap_ldapsync_cn_bv, locker );
 854                         }
 855                 }
 856
 857                 if ( rs->sr_err == LDAP_SUCCESS ) {
 858                         /* Loop through in-scope entries for each psearch spec */
 859                         ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
 860                         LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 861                                 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_MODIFY );
 862                                 if ( rc ) {
 863                                         Debug( LDAP_DEBUG_TRACE,
 864                                                 LDAP_XSTRING(bdb_modrdn)
 865                                                 ": persistent search failed "
 866                                                 "(%d,%d)\n",
 867                                                 rc, rs->sr_err, 0 );
 868                         }
 869                         }
 870                         pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 871                         while ( pm_list != NULL ) {
 872                                 rc = bdb_psearch(op, rs, pm_list->ps_op,
 873                                                         e, LDAP_PSEARCH_BY_SCOPEOUT);
 874                                 if ( rc ) {
 875                                         Debug( LDAP_DEBUG_TRACE,
 876                                                 LDAP_XSTRING(bdb_modrdn)
 877                                                 ": persistent search failed "
 878                                                 "(%d,%d)\n",
 879                                                 rc, rs->sr_err, 0 );
 880                                 }
 881                                 pm_prev = pm_list;
 882                                 LDAP_LIST_REMOVE ( pm_list, ps_link );
 883                                 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 884                                 ch_free( pm_prev );
 885                         }
 886                         ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
 887                 }
 888
 889                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 890                         rs->sr_text = "txn_commit failed";
 891                 } else {
 892                         rs->sr_err = LDAP_SUCCESS;
 893                 }
 894         }
 895
 896         ltid = NULL;
 897         op->o_private = NULL;
 898
 899         if( rs->sr_err != LDAP_SUCCESS ) {
 900                 Debug( LDAP_DEBUG_TRACE,
 901                         LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
 902                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 903                 rs->sr_err = LDAP_OTHER;
 904
 905                 goto return_results;
 906         }
 907
 908         Debug(LDAP_DEBUG_TRACE,
 909                 LDAP_XSTRING(bdb_modrdn)
 910                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 911                 op->o_noop ? " (no-op)" : "",
 912                 dummy.e_id, op->o_req_dn.bv_val );
 913         rs->sr_text = NULL;
 914         if( num_ctrls ) rs->sr_ctrls = ctrls;
 915
 916 return_results:
 917         if ( dummy.e_attrs ) {
 918                 attrs_free( dummy.e_attrs );
 919         }
 920         send_ldap_result( op, rs );
 921
 922         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 923                 ldap_pvt_thread_yield();
 924                 TXN_CHECKPOINT( bdb->bi_dbenv,
 925                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 926         }
 927
 928         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 929                 op->o_delete_glue_parent = 1;
 930         }
 931
 932 done:
 933         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 934         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 935
 936         /* LDAP v2 supporting correct attribute handling. */
 937         if ( new_rdn != NULL ) {
 938                 ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
 939         }
 940         if ( old_rdn != NULL ) {
 941                 ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
 942         }
 943         if( mod != NULL ) {
 944                 Modifications *tmp;
 945                 for (; mod; mod=tmp ) {
 946                         tmp = mod->sml_next;
 947                         /* slap_modrdn2mods does things one way,
 948                          * slap_mods_opattrs does it differently
 949                          */
 950                         if ( mod->sml_op != SLAP_MOD_SOFTADD &&
 951                                 mod->sml_op != LDAP_MOD_DELETE ) break;
 952                         if ( mod->sml_nvalues ) free( mod->sml_nvalues[0].bv_val );
 953                         free( mod );
 954                 }
 955                 slap_mods_free( mod );
 956         }
 957
 958         /* LDAP v3 Support */
 959         if( np != NULL ) {
 960                 /* free new parent and reader lock */
 961                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 962         }
 963
 964         if( p != NULL ) {
 965                 /* free parent and reader lock */
 966                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 967         }
 968
 969         /* free entry */
 970         if( e != NULL ) {
 971                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 972         }
 973
 974         if( ltid != NULL ) {
 975                 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 976                 while ( pm_list != NULL ) {
 977                         LDAP_LIST_REMOVE ( pm_list, ps_link );
 978                         pm_prev = pm_list;
 979                         pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 980                         ch_free( pm_prev );
 981                 }
 982                 TXN_ABORT( ltid );
 983                 op->o_private = NULL;
 984         }
 985
 986         if( preread_ctrl != NULL ) {
 987                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 988                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 989         }
 990         if( postread_ctrl != NULL ) {
 991                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 992                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 993         }
 994         return rs->sr_err;
 995 }