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