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 2000-2007 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         Entry           *e = NULL;
  33         Entry           *p = NULL;
  34         EntryInfo       *ei = NULL, *eip = NULL, *nei = NULL, *neip = NULL;
  35         /* LDAP v2 supporting correct attribute handling. */
  36         LDAPRDN         new_rdn = NULL;
  37         LDAPRDN         old_rdn = NULL;
  38         char textbuf[SLAP_TEXT_BUFLEN];
  39         size_t textlen = sizeof textbuf;
  40         DB_TXN          *ltid = NULL, *lt2;
  41         struct bdb_op_info opinfo = {0};
  42         Entry dummy = {0};
  43
  44         Entry           *np = NULL;                     /* newSuperior Entry */
  45         struct berval   *np_dn = NULL;                  /* newSuperior dn */
  46         struct berval   *np_ndn = NULL;                 /* newSuperior ndn */
  47         struct berval   *new_parent_dn = NULL;  /* np_dn, p_dn, or NULL */
  48
  49         /* Used to interface with bdb_modify_internal() */
  50         Modifications   *mod = NULL;            /* Used to delete old rdn */
  51
  52         int             manageDSAit = get_manageDSAit( op );
  53
  54         u_int32_t       locker = 0;
  55         DB_LOCK         lock, plock, nplock;
  56
  57         int             num_retries = 0;
  58
  59         LDAPControl **preread_ctrl = NULL;
  60         LDAPControl **postread_ctrl = NULL;
  61         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  62         int num_ctrls = 0;
  63
  64         int     rc;
  65
  66         int parent_is_glue = 0;
  67         int parent_is_leaf = 0;
  68
  69         ctrls[num_ctrls] = NULL;
  70
  71         Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn) "(%s,%s,%s)\n",
  72                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  73                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  74
  75         if( 0 ) {
  76 retry:  /* transaction retry */
  77                 if ( dummy.e_attrs ) {
  78                         attrs_free( dummy.e_attrs );
  79                         dummy.e_attrs = NULL;
  80                 }
  81                 if (e != NULL) {
  82                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
  83                         e = NULL;
  84                 }
  85                 if (p != NULL) {
  86                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
  87                         p = NULL;
  88                 }
  89                 if (np != NULL) {
  90                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
  91                         np = NULL;
  92                 }
  93                 Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn)
  94                                 ": retrying...\n", 0, 0, 0 );
  95
  96                 rs->sr_err = TXN_ABORT( ltid );
  97                 ltid = NULL;
  98                 op->o_private = NULL;
  99                 op->o_do_not_cache = opinfo.boi_acl_cache;
 100                 if( rs->sr_err != 0 ) {
 101                         rs->sr_err = LDAP_OTHER;
 102                         rs->sr_text = "internal error";
 103                         goto return_results;
 104                 }
 105                 if ( op->o_abandon ) {
 106                         rs->sr_err = SLAPD_ABANDON;
 107                         goto return_results;
 108                 }
 109                 parent_is_glue = 0;
 110                 parent_is_leaf = 0;
 111                 bdb_trans_backoff( ++num_retries );
 112         }
 113
 114         /* begin transaction */
 115         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 116                 bdb->bi_db_opflags );
 117         rs->sr_text = NULL;
 118         if( rs->sr_err != 0 ) {
 119                 Debug( LDAP_DEBUG_TRACE,
 120                         LDAP_XSTRING(bdb_modrdn) ": txn_begin failed: "
 121                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 122                 rs->sr_err = LDAP_OTHER;
 123                 rs->sr_text = "internal error";
 124                 goto return_results;
 125         }
 126
 127         locker = TXN_ID ( ltid );
 128
 129         opinfo.boi_bdb = op->o_bd;
 130         opinfo.boi_txn = ltid;
 131         opinfo.boi_locker = locker;
 132         opinfo.boi_err = 0;
 133         opinfo.boi_acl_cache = op->o_do_not_cache;
 134         op->o_private = &opinfo;
 135
 136         /* get entry */
 137         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 138                 locker, &lock );
 139
 140         switch( rs->sr_err ) {
 141         case 0:
 142         case DB_NOTFOUND:
 143                 break;
 144         case DB_LOCK_DEADLOCK:
 145         case DB_LOCK_NOTGRANTED:
 146                 goto retry;
 147         case LDAP_BUSY:
 148                 rs->sr_text = "ldap server busy";
 149                 goto return_results;
 150         default:
 151                 rs->sr_err = LDAP_OTHER;
 152                 rs->sr_text = "internal error";
 153                 goto return_results;
 154         }
 155
 156         e = ei->bei_e;
 157         /* FIXME: dn2entry() should return non-glue entry */
 158         if (( rs->sr_err == DB_NOTFOUND ) ||
 159                 ( !manageDSAit && e && is_entry_glue( e )))
 160         {
 161                 if( e != NULL ) {
 162                         rs->sr_matched = ch_strdup( e->e_dn );
 163                         rs->sr_ref = is_entry_referral( e )
 164                                 ? get_entry_referrals( op, e )
 165                                 : NULL;
 166                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 167                         e = NULL;
 168
 169                 } else {
 170                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 171                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 172                 }
 173
 174                 rs->sr_err = LDAP_REFERRAL;
 175                 send_ldap_result( op, rs );
 176
 177                 ber_bvarray_free( rs->sr_ref );
 178                 free( (char *)rs->sr_matched );
 179                 rs->sr_ref = NULL;
 180                 rs->sr_matched = NULL;
 181
 182                 goto done;
 183         }
 184
 185         if ( get_assert( op ) &&
 186                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 187         {
 188                 rs->sr_err = LDAP_ASSERTION_FAILED;
 189                 goto return_results;
 190         }
 191
 192         /* check write on old entry */
 193         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 194         if ( ! rs->sr_err ) {
 195                 switch( opinfo.boi_err ) {
 196                 case DB_LOCK_DEADLOCK:
 197                 case DB_LOCK_NOTGRANTED:
 198                         goto retry;
 199                 }
 200
 201                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 202                         0, 0 );
 203                 rs->sr_text = "no write access to old entry";
 204                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 205                 goto return_results;
 206         }
 207
 208 #ifndef BDB_HIER
 209         rs->sr_err = bdb_cache_children( op, ltid, e );
 210         if ( rs->sr_err != DB_NOTFOUND ) {
 211                 switch( rs->sr_err ) {
 212                 case DB_LOCK_DEADLOCK:
 213                 case DB_LOCK_NOTGRANTED:
 214                         goto retry;
 215                 case 0:
 216                         Debug(LDAP_DEBUG_ARGS,
 217                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 218                                 ": non-leaf %s\n",
 219                                 op->o_req_dn.bv_val, 0, 0);
 220                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 221                         rs->sr_text = "subtree rename not supported";
 222                         break;
 223                 default:
 224                         Debug(LDAP_DEBUG_ARGS,
 225                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 226                                 ": has_children failed: %s (%d)\n",
 227                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 228                         rs->sr_err = LDAP_OTHER;
 229                         rs->sr_text = "internal error";
 230                 }
 231                 goto return_results;
 232         }
 233         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 234 #endif
 235
 236         if (!manageDSAit && is_entry_referral( e ) ) {
 237                 /* parent is a referral, don't allow add */
 238                 rs->sr_ref = get_entry_referrals( op, e );
 239
 240                 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 241                         ": entry %s is referral\n", e->e_dn, 0, 0 );
 242
 243                 rs->sr_err = LDAP_REFERRAL,
 244                 rs->sr_matched = e->e_name.bv_val;
 245                 send_ldap_result( op, rs );
 246
 247                 ber_bvarray_free( rs->sr_ref );
 248                 rs->sr_ref = NULL;
 249                 rs->sr_matched = NULL;
 250                 goto done;
 251         }
 252
 253         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 254 #ifdef BDB_MULTIPLE_SUFFIXES
 255                 /* Allow renaming one suffix entry to another */
 256                 p_ndn = slap_empty_bv;
 257 #else
 258                 /* There can only be one suffix entry */
 259                 rs->sr_err = LDAP_NAMING_VIOLATION;
 260                 rs->sr_text = "cannot rename suffix entry";
 261                 goto return_results;
 262 #endif
 263         } else {
 264                 dnParent( &e->e_nname, &p_ndn );
 265         }
 266         np_ndn = &p_ndn;
 267         if ( p_ndn.bv_len != 0 ) {
 268                 /* Make sure parent entry exist and we can write its
 269                  * children.
 270                  */
 271                 eip = ei->bei_parent;
 272                 rs->sr_err = bdb_cache_find_id( op, ltid,
 273                         eip->bei_id, &eip, 0, locker, &plock );
 274
 275                 switch( rs->sr_err ) {
 276                 case 0:
 277                 case DB_NOTFOUND:
 278                         break;
 279                 case DB_LOCK_DEADLOCK:
 280                 case DB_LOCK_NOTGRANTED:
 281                         goto retry;
 282                 case LDAP_BUSY:
 283                         rs->sr_text = "ldap server busy";
 284                         goto return_results;
 285                 default:
 286                         rs->sr_err = LDAP_OTHER;
 287                         rs->sr_text = "internal error";
 288                         goto return_results;
 289                 }
 290
 291                 p = eip->bei_e;
 292                 if( p == NULL) {
 293                         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
 294                                 ": parent does not exist\n", 0, 0, 0);
 295                         rs->sr_err = LDAP_OTHER;
 296                         rs->sr_text = "old entry's parent does not exist";
 297                         goto return_results;
 298                 }
 299         } else {
 300                 p = (Entry *)&slap_entry_root;
 301         }
 302
 303         /* check parent for "children" acl */
 304         rs->sr_err = access_allowed( op, p,
 305                 children, NULL,
 306                 op->oq_modrdn.rs_newSup == NULL ?
 307                         ACL_WRITE : ACL_WDEL,
 308                 NULL );
 309
 310         if ( !p_ndn.bv_len )
 311                 p = NULL;
 312
 313         if ( ! rs->sr_err ) {
 314                 switch( opinfo.boi_err ) {
 315                 case DB_LOCK_DEADLOCK:
 316                 case DB_LOCK_NOTGRANTED:
 317                         goto retry;
 318                 }
 319
 320                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 321                 Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 322                         0, 0 );
 323                 rs->sr_text = "no write access to old parent's children";
 324                 goto return_results;
 325         }
 326
 327         Debug( LDAP_DEBUG_TRACE,
 328                 LDAP_XSTRING(bdb_modrdn) ": wr to children "
 329                 "of entry %s OK\n", p_ndn.bv_val, 0, 0 );
 330
 331         if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 332                 p_dn = slap_empty_bv;
 333         } else {
 334                 dnParent( &e->e_name, &p_dn );
 335         }
 336
 337         Debug( LDAP_DEBUG_TRACE,
 338                 LDAP_XSTRING(bdb_modrdn) ": parent dn=%s\n",
 339                 p_dn.bv_val, 0, 0 );
 340
 341         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 342
 343         if ( op->oq_modrdn.rs_newSup != NULL ) {
 344                 Debug( LDAP_DEBUG_TRACE,
 345                         LDAP_XSTRING(bdb_modrdn)
 346                         ": new parent \"%s\" requested...\n",
 347                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 348
 349                 /*  newSuperior == oldParent? */
 350                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 351                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 352                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 353                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 354                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 355                 }
 356         }
 357
 358         /* There's a BDB_MULTIPLE_SUFFIXES case here that this code doesn't
 359          * support. E.g., two suffixes dc=foo,dc=com and dc=bar,dc=net.
 360          * We do not allow modDN
 361          *   dc=foo,dc=com
 362          *    newrdn dc=bar
 363          *    newsup dc=net
 364          * and we probably should. But since MULTIPLE_SUFFIXES is deprecated
 365          * I'm ignoring this problem for now.
 366          */
 367         if ( op->oq_modrdn.rs_newSup != NULL ) {
 368                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 369                         np_dn = op->oq_modrdn.rs_newSup;
 370                         np_ndn = op->oq_modrdn.rs_nnewSup;
 371
 372                         /* newSuperior == oldParent? - checked above */
 373                         /* newSuperior == entry being moved?, if so ==> ERROR */
 374                         if ( dnIsSuffix( np_ndn, &e->e_nname )) {
 375                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 376                                 rs->sr_text = "new superior not found";
 377                                 goto return_results;
 378                         }
 379                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 380
 381                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 382                                 &neip, 0, locker, &nplock );
 383
 384                         switch( rs->sr_err ) {
 385                         case 0: np = neip->bei_e;
 386                         case DB_NOTFOUND:
 387                                 break;
 388                         case DB_LOCK_DEADLOCK:
 389                         case DB_LOCK_NOTGRANTED:
 390                                 goto retry;
 391                         case LDAP_BUSY:
 392                                 rs->sr_text = "ldap server busy";
 393                                 goto return_results;
 394                         default:
 395                                 rs->sr_err = LDAP_OTHER;
 396                                 rs->sr_text = "internal error";
 397                                 goto return_results;
 398                         }
 399
 400                         if( np == NULL) {
 401                                 Debug( LDAP_DEBUG_TRACE,
 402                                         LDAP_XSTRING(bdb_modrdn)
 403                                         ": newSup(ndn=%s) not here!\n",
 404                                         np_ndn->bv_val, 0, 0);
 405                                 rs->sr_text = "new superior not found";
 406                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
 407                                 goto return_results;
 408                         }
 409
 410                         Debug( LDAP_DEBUG_TRACE,
 411                                 LDAP_XSTRING(bdb_modrdn)
 412                                 ": wr to new parent OK np=%p, id=%ld\n",
 413                                 (void *) np, (long) np->e_id, 0 );
 414
 415                         /* check newSuperior for "children" acl */
 416                         rs->sr_err = access_allowed( op, np, children,
 417                                 NULL, ACL_WADD, NULL );
 418
 419                         if( ! rs->sr_err ) {
 420                                 switch( opinfo.boi_err ) {
 421                                 case DB_LOCK_DEADLOCK:
 422                                 case DB_LOCK_NOTGRANTED:
 423                                         goto retry;
 424                                 }
 425
 426                                 Debug( LDAP_DEBUG_TRACE,
 427                                         LDAP_XSTRING(bdb_modrdn)
 428                                         ": no wr to newSup children\n",
 429                                         0, 0, 0 );
 430                                 rs->sr_text = "no write access to new superior's children";
 431                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 432                                 goto return_results;
 433                         }
 434
 435                         if ( is_entry_alias( np ) ) {
 436                                 /* parent is an alias, don't allow add */
 437                                 Debug( LDAP_DEBUG_TRACE,
 438                                         LDAP_XSTRING(bdb_modrdn)
 439                                         ": entry is alias\n",
 440                                         0, 0, 0 );
 441                                 rs->sr_text = "new superior is an alias";
 442                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 443                                 goto return_results;
 444                         }
 445
 446                         if ( is_entry_referral( np ) ) {
 447                                 /* parent is a referral, don't allow add */
 448                                 Debug( LDAP_DEBUG_TRACE,
 449                                         LDAP_XSTRING(bdb_modrdn)
 450                                         ": entry is referral\n",
 451                                         0, 0, 0 );
 452                                 rs->sr_text = "new superior is a referral";
 453                                 rs->sr_err = LDAP_OTHER;
 454                                 goto return_results;
 455                         }
 456
 457                 } else {
 458                         np_dn = NULL;
 459
 460                         /* no parent, modrdn entry directly under root */
 461                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 462                                 || be_isupdate( op ) ) {
 463                                 np = (Entry *)&slap_entry_root;
 464
 465                                 /* check parent for "children" acl */
 466                                 rs->sr_err = access_allowed( op, np,
 467                                         children, NULL, ACL_WADD, NULL );
 468
 469                                 np = NULL;
 470
 471                                 if ( ! rs->sr_err ) {
 472                                         switch( opinfo.boi_err ) {
 473                                         case DB_LOCK_DEADLOCK:
 474                                         case DB_LOCK_NOTGRANTED:
 475                                                 goto retry;
 476                                         }
 477
 478                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 479                                         Debug( LDAP_DEBUG_TRACE,
 480                                                 "no access to new superior\n",
 481                                                 0, 0, 0 );
 482                                         rs->sr_text =
 483                                                 "no write access to new superior's children";
 484                                         goto return_results;
 485                                 }
 486                         }
 487                 }
 488
 489                 Debug( LDAP_DEBUG_TRACE,
 490                         LDAP_XSTRING(bdb_modrdn)
 491                         ": wr to new parent's children OK\n",
 492                         0, 0, 0 );
 493
 494                 new_parent_dn = np_dn;
 495         }
 496
 497         /* Build target dn and make sure target entry doesn't exist already. */
 498         if (!new_dn.bv_val) {
 499                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 500         }
 501
 502         if (!new_ndn.bv_val) {
 503                 struct berval bv = {0, NULL};
 504                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 505                 ber_dupbv( &new_ndn, &bv );
 506         }
 507
 508         Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": new ndn=%s\n",
 509                 new_ndn.bv_val, 0, 0 );
 510
 511         /* Shortcut the search */
 512         nei = neip ? neip : eip;
 513         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 514         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 515         switch( rs->sr_err ) {
 516         case DB_LOCK_DEADLOCK:
 517         case DB_LOCK_NOTGRANTED:
 518                 goto retry;
 519         case DB_NOTFOUND:
 520                 break;
 521         case 0:
 522                 rs->sr_err = LDAP_ALREADY_EXISTS;
 523                 goto return_results;
 524         default:
 525                 rs->sr_err = LDAP_OTHER;
 526                 rs->sr_text = "internal error";
 527                 goto return_results;
 528         }
 529
 530         /* Get attribute type and attribute value of our new rdn, we will
 531          * need to add that to our new entry
 532          */
 533         if ( !new_rdn && ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
 534                 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 535         {
 536                 Debug( LDAP_DEBUG_TRACE,
 537                         LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 538                         "type(s)/values(s) of newrdn\n",
 539                         0, 0, 0 );
 540                 rs->sr_err = LDAP_INVALID_DN_SYNTAX;
 541                 rs->sr_text = "unknown type(s) used in RDN";
 542                 goto return_results;
 543         }
 544
 545         Debug( LDAP_DEBUG_TRACE,
 546                 LDAP_XSTRING(bdb_modrdn)
 547                 ": new_rdn_type=\"%s\", new_rdn_val=\"%s\"\n",
 548                 new_rdn[ 0 ]->la_attr.bv_val,
 549                 new_rdn[ 0 ]->la_value.bv_val, 0 );
 550
 551         if ( op->oq_modrdn.rs_deleteoldrdn ) {
 552                 if ( !old_rdn && ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
 553                         (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 554                 {
 555                         Debug( LDAP_DEBUG_TRACE,
 556                                 LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 557                                 "the old_rdn type(s)/value(s)\n",
 558                                 0, 0, 0 );
 559                         rs->sr_err = LDAP_OTHER;
 560                         rs->sr_text = "cannot parse RDN from old DN";
 561                         goto return_results;
 562                 }
 563         }
 564
 565         /* prepare modlist of modifications from old/new rdn */
 566         if (!mod) {
 567                 rs->sr_err = slap_modrdn2mods( op, rs, e, old_rdn, new_rdn, &mod );
 568                 if ( rs->sr_err != LDAP_SUCCESS ) {
 569                         goto return_results;
 570                 }
 571         }
 572
 573         if( op->o_preread ) {
 574                 if( preread_ctrl == NULL ) {
 575                         preread_ctrl = &ctrls[num_ctrls++];
 576                         ctrls[num_ctrls] = NULL;
 577                 }
 578                 if( slap_read_controls( op, rs, e,
 579                         &slap_pre_read_bv, preread_ctrl ) )
 580                 {
 581                         Debug( LDAP_DEBUG_TRACE,
 582                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 583                                 ": post-read failed!\n", 0, 0, 0 );
 584                         goto return_results;
 585                 }
 586         }
 587
 588         /* nested transaction */
 589         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 590         rs->sr_text = NULL;
 591         if( rs->sr_err != 0 ) {
 592                 Debug( LDAP_DEBUG_TRACE,
 593                         LDAP_XSTRING(bdb_modrdn)
 594                         ": txn_begin(2) failed: %s (%d)\n",
 595                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 596                 rs->sr_err = LDAP_OTHER;
 597                 rs->sr_text = "internal error";
 598                 goto return_results;
 599         }
 600
 601         /* delete old DN */
 602         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 603         if ( rs->sr_err != 0 ) {
 604                 Debug(LDAP_DEBUG_TRACE,
 605                         "<=- " LDAP_XSTRING(bdb_modrdn)
 606                         ": dn2id del failed: %s (%d)\n",
 607                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 608                 switch( rs->sr_err ) {
 609                 case DB_LOCK_DEADLOCK:
 610                 case DB_LOCK_NOTGRANTED:
 611                         goto retry;
 612                 }
 613                 rs->sr_err = LDAP_OTHER;
 614                 rs->sr_text = "DN index delete fail";
 615                 goto return_results;
 616         }
 617
 618         /* copy the entry, then override some fields */
 619         dummy = *e;
 620         dummy.e_name = new_dn;
 621         dummy.e_nname = new_ndn;
 622         dummy.e_attrs = NULL;
 623
 624         /* add new DN */
 625         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 626         if ( rs->sr_err != 0 ) {
 627                 Debug(LDAP_DEBUG_TRACE,
 628                         "<=- " LDAP_XSTRING(bdb_modrdn)
 629                         ": dn2id add failed: %s (%d)\n",
 630                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 631                 switch( rs->sr_err ) {
 632                 case DB_LOCK_DEADLOCK:
 633                 case DB_LOCK_NOTGRANTED:
 634                         goto retry;
 635                 }
 636                 rs->sr_err = LDAP_OTHER;
 637                 rs->sr_text = "DN index add failed";
 638                 goto return_results;
 639         }
 640
 641         dummy.e_attrs = e->e_attrs;
 642
 643         /* modify entry */
 644         rs->sr_err = bdb_modify_internal( op, lt2, &mod[0], &dummy,
 645                 &rs->sr_text, textbuf, textlen );
 646         if( rs->sr_err != LDAP_SUCCESS ) {
 647                 Debug(LDAP_DEBUG_TRACE,
 648                         "<=- " LDAP_XSTRING(bdb_modrdn)
 649                         ": modify failed: %s (%d)\n",
 650                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 651                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 652                         rs->sr_err = opinfo.boi_err;
 653                 }
 654                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 655                 switch( rs->sr_err ) {
 656                 case DB_LOCK_DEADLOCK:
 657                 case DB_LOCK_NOTGRANTED:
 658                         goto retry;
 659                 }
 660                 goto return_results;
 661         }
 662
 663         /* id2entry index */
 664         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 665         if ( rs->sr_err != 0 ) {
 666                 Debug(LDAP_DEBUG_TRACE,
 667                         "<=- " LDAP_XSTRING(bdb_modrdn)
 668                         ": id2entry failed: %s (%d)\n",
 669                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 670                 switch( rs->sr_err ) {
 671                 case DB_LOCK_DEADLOCK:
 672                 case DB_LOCK_NOTGRANTED:
 673                         goto retry;
 674                 }
 675                 rs->sr_err = LDAP_OTHER;
 676                 rs->sr_text = "entry update failed";
 677                 goto return_results;
 678         }
 679
 680         if ( p_ndn.bv_len != 0 ) {
 681                 parent_is_glue = is_entry_glue(p);
 682                 rs->sr_err = bdb_cache_children( op, lt2, p );
 683                 if ( rs->sr_err != DB_NOTFOUND ) {
 684                         switch( rs->sr_err ) {
 685                         case DB_LOCK_DEADLOCK:
 686                         case DB_LOCK_NOTGRANTED:
 687                                 goto retry;
 688                         case 0:
 689                                 break;
 690                         default:
 691                                 Debug(LDAP_DEBUG_ARGS,
 692                                         "<=- " LDAP_XSTRING(bdb_modrdn)
 693                                         ": has_children failed: %s (%d)\n",
 694                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 695                                 rs->sr_err = LDAP_OTHER;
 696                                 rs->sr_text = "internal error";
 697                                 goto return_results;
 698                         }
 699                         parent_is_leaf = 1;
 700                 }
 701                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 702                 p = NULL;
 703         }
 704
 705         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 706                 rs->sr_err = LDAP_OTHER;
 707                 rs->sr_text = "txn_commit(2) failed";
 708                 goto return_results;
 709         }
 710
 711         if( op->o_postread ) {
 712                 if( postread_ctrl == NULL ) {
 713                         postread_ctrl = &ctrls[num_ctrls++];
 714                         ctrls[num_ctrls] = NULL;
 715                 }
 716                 if( slap_read_controls( op, rs, &dummy,
 717                         &slap_post_read_bv, postread_ctrl ) )
 718                 {
 719                         Debug( LDAP_DEBUG_TRACE,
 720                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 721                                 ": post-read failed!\n", 0, 0, 0 );
 722                         goto return_results;
 723                 }
 724         }
 725
 726         if( op->o_noop ) {
 727                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 728                         rs->sr_text = "txn_abort (no-op) failed";
 729                 } else {
 730                         rs->sr_err = LDAP_X_NO_OPERATION;
 731                         ltid = NULL;
 732                         goto return_results;
 733                 }
 734
 735         } else {
 736                 rc = bdb_cache_modrdn( bdb, e, &op->orr_nnewrdn, &dummy, neip,
 737                         locker, &lock );
 738                 switch( rc ) {
 739                 case DB_LOCK_DEADLOCK:
 740                 case DB_LOCK_NOTGRANTED:
 741                         goto retry;
 742                 }
 743                 dummy.e_attrs = NULL;
 744                 new_dn.bv_val = NULL;
 745                 new_ndn.bv_val = NULL;
 746
 747                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 748                         rs->sr_text = "txn_commit failed";
 749                 } else {
 750                         rs->sr_err = LDAP_SUCCESS;
 751                 }
 752         }
 753
 754         ltid = NULL;
 755         op->o_private = NULL;
 756
 757         if( rs->sr_err != LDAP_SUCCESS ) {
 758                 Debug( LDAP_DEBUG_TRACE,
 759                         LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
 760                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 761                 rs->sr_err = LDAP_OTHER;
 762
 763                 goto return_results;
 764         }
 765
 766         Debug(LDAP_DEBUG_TRACE,
 767                 LDAP_XSTRING(bdb_modrdn)
 768                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 769                 op->o_noop ? " (no-op)" : "",
 770                 dummy.e_id, op->o_req_dn.bv_val );
 771         rs->sr_text = NULL;
 772         if( num_ctrls ) rs->sr_ctrls = ctrls;
 773
 774 return_results:
 775         if ( dummy.e_attrs ) {
 776                 attrs_free( dummy.e_attrs );
 777         }
 778         send_ldap_result( op, rs );
 779
 780         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 781                 TXN_CHECKPOINT( bdb->bi_dbenv,
 782                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 783         }
 784
 785         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 786                 op->o_delete_glue_parent = 1;
 787         }
 788
 789 done:
 790         slap_graduate_commit_csn( op );
 791
 792         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 793         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 794
 795         /* LDAP v2 supporting correct attribute handling. */
 796         if ( new_rdn != NULL ) {
 797                 ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
 798         }
 799
 800         if ( old_rdn != NULL ) {
 801                 ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
 802         }
 803
 804         if( mod != NULL ) {
 805                 slap_modrdn2mods_free( mod );
 806         }
 807
 808         /* LDAP v3 Support */
 809         if( np != NULL ) {
 810                 /* free new parent and reader lock */
 811                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 812         }
 813
 814         if( p != NULL ) {
 815                 /* free parent and reader lock */
 816                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 817         }
 818
 819         /* free entry */
 820         if( e != NULL ) {
 821                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 822         }
 823
 824         if( ltid != NULL ) {
 825                 TXN_ABORT( ltid );
 826         }
 827         op->o_private = NULL;
 828
 829         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 830                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 831                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 832         }
 833         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 834                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 835                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 836         }
 837         return rs->sr_err;
 838 }