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