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 2000-2008 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, locker, &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                 /* Allow rename to same DN */
 523                 if ( nei == ei )
 524                         break;
 525                 rs->sr_err = LDAP_ALREADY_EXISTS;
 526                 goto return_results;
 527         default:
 528                 rs->sr_err = LDAP_OTHER;
 529                 rs->sr_text = "internal error";
 530                 goto return_results;
 531         }
 532
 533         /* Get attribute type and attribute value of our new rdn, we will
 534          * need to add that to our new entry
 535          */
 536         if ( !new_rdn && ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
 537                 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 538         {
 539                 Debug( LDAP_DEBUG_TRACE,
 540                         LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 541                         "type(s)/values(s) of newrdn\n",
 542                         0, 0, 0 );
 543                 rs->sr_err = LDAP_INVALID_DN_SYNTAX;
 544                 rs->sr_text = "unknown type(s) used in RDN";
 545                 goto return_results;
 546         }
 547
 548         Debug( LDAP_DEBUG_TRACE,
 549                 LDAP_XSTRING(bdb_modrdn)
 550                 ": new_rdn_type=\"%s\", new_rdn_val=\"%s\"\n",
 551                 new_rdn[ 0 ]->la_attr.bv_val,
 552                 new_rdn[ 0 ]->la_value.bv_val, 0 );
 553
 554         if ( op->oq_modrdn.rs_deleteoldrdn ) {
 555                 if ( !old_rdn && ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
 556                         (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 557                 {
 558                         Debug( LDAP_DEBUG_TRACE,
 559                                 LDAP_XSTRING(bdb_modrdn) ": can't figure out "
 560                                 "the old_rdn type(s)/value(s)\n",
 561                                 0, 0, 0 );
 562                         rs->sr_err = LDAP_OTHER;
 563                         rs->sr_text = "cannot parse RDN from old DN";
 564                         goto return_results;
 565                 }
 566         }
 567
 568         /* prepare modlist of modifications from old/new rdn */
 569         if (!mod) {
 570                 rs->sr_err = slap_modrdn2mods( op, rs, e, old_rdn, new_rdn, &mod );
 571                 if ( rs->sr_err != LDAP_SUCCESS ) {
 572                         goto return_results;
 573                 }
 574         }
 575
 576         if( op->o_preread ) {
 577                 if( preread_ctrl == NULL ) {
 578                         preread_ctrl = &ctrls[num_ctrls++];
 579                         ctrls[num_ctrls] = NULL;
 580                 }
 581                 if( slap_read_controls( op, rs, e,
 582                         &slap_pre_read_bv, preread_ctrl ) )
 583                 {
 584                         Debug( LDAP_DEBUG_TRACE,
 585                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 586                                 ": post-read failed!\n", 0, 0, 0 );
 587                         goto return_results;
 588                 }
 589         }
 590
 591         /* nested transaction */
 592         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 593         rs->sr_text = NULL;
 594         if( rs->sr_err != 0 ) {
 595                 Debug( LDAP_DEBUG_TRACE,
 596                         LDAP_XSTRING(bdb_modrdn)
 597                         ": txn_begin(2) failed: %s (%d)\n",
 598                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 599                 rs->sr_err = LDAP_OTHER;
 600                 rs->sr_text = "internal error";
 601                 goto return_results;
 602         }
 603
 604         /* delete old DN */
 605         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 606         if ( rs->sr_err != 0 ) {
 607                 Debug(LDAP_DEBUG_TRACE,
 608                         "<=- " LDAP_XSTRING(bdb_modrdn)
 609                         ": dn2id del failed: %s (%d)\n",
 610                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 611                 switch( rs->sr_err ) {
 612                 case DB_LOCK_DEADLOCK:
 613                 case DB_LOCK_NOTGRANTED:
 614                         goto retry;
 615                 }
 616                 rs->sr_err = LDAP_OTHER;
 617                 rs->sr_text = "DN index delete fail";
 618                 goto return_results;
 619         }
 620
 621         /* copy the entry, then override some fields */
 622         dummy = *e;
 623         dummy.e_name = new_dn;
 624         dummy.e_nname = new_ndn;
 625         dummy.e_attrs = NULL;
 626
 627         /* add new DN */
 628         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 629         if ( rs->sr_err != 0 ) {
 630                 Debug(LDAP_DEBUG_TRACE,
 631                         "<=- " LDAP_XSTRING(bdb_modrdn)
 632                         ": dn2id add failed: %s (%d)\n",
 633                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 634                 switch( rs->sr_err ) {
 635                 case DB_LOCK_DEADLOCK:
 636                 case DB_LOCK_NOTGRANTED:
 637                         goto retry;
 638                 }
 639                 rs->sr_err = LDAP_OTHER;
 640                 rs->sr_text = "DN index add failed";
 641                 goto return_results;
 642         }
 643
 644         dummy.e_attrs = e->e_attrs;
 645
 646         /* modify entry */
 647         rs->sr_err = bdb_modify_internal( op, lt2, &mod[0], &dummy,
 648                 &rs->sr_text, textbuf, textlen );
 649         if( rs->sr_err != LDAP_SUCCESS ) {
 650                 Debug(LDAP_DEBUG_TRACE,
 651                         "<=- " LDAP_XSTRING(bdb_modrdn)
 652                         ": modify failed: %s (%d)\n",
 653                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 654                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 655                         rs->sr_err = opinfo.boi_err;
 656                 }
 657                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 658                 switch( rs->sr_err ) {
 659                 case DB_LOCK_DEADLOCK:
 660                 case DB_LOCK_NOTGRANTED:
 661                         goto retry;
 662                 }
 663                 goto return_results;
 664         }
 665
 666         /* id2entry index */
 667         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 668         if ( rs->sr_err != 0 ) {
 669                 Debug(LDAP_DEBUG_TRACE,
 670                         "<=- " LDAP_XSTRING(bdb_modrdn)
 671                         ": id2entry failed: %s (%d)\n",
 672                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 673                 switch( rs->sr_err ) {
 674                 case DB_LOCK_DEADLOCK:
 675                 case DB_LOCK_NOTGRANTED:
 676                         goto retry;
 677                 }
 678                 rs->sr_err = LDAP_OTHER;
 679                 rs->sr_text = "entry update failed";
 680                 goto return_results;
 681         }
 682
 683         if ( p_ndn.bv_len != 0 ) {
 684                 parent_is_glue = is_entry_glue(p);
 685                 rs->sr_err = bdb_cache_children( op, lt2, p );
 686                 if ( rs->sr_err != DB_NOTFOUND ) {
 687                         switch( rs->sr_err ) {
 688                         case DB_LOCK_DEADLOCK:
 689                         case DB_LOCK_NOTGRANTED:
 690                                 goto retry;
 691                         case 0:
 692                                 break;
 693                         default:
 694                                 Debug(LDAP_DEBUG_ARGS,
 695                                         "<=- " LDAP_XSTRING(bdb_modrdn)
 696                                         ": has_children failed: %s (%d)\n",
 697                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 698                                 rs->sr_err = LDAP_OTHER;
 699                                 rs->sr_text = "internal error";
 700                                 goto return_results;
 701                         }
 702                         parent_is_leaf = 1;
 703                 }
 704                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 705                 p = NULL;
 706         }
 707
 708         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 709                 rs->sr_err = LDAP_OTHER;
 710                 rs->sr_text = "txn_commit(2) failed";
 711                 goto return_results;
 712         }
 713
 714         if( op->o_postread ) {
 715                 if( postread_ctrl == NULL ) {
 716                         postread_ctrl = &ctrls[num_ctrls++];
 717                         ctrls[num_ctrls] = NULL;
 718                 }
 719                 if( slap_read_controls( op, rs, &dummy,
 720                         &slap_post_read_bv, postread_ctrl ) )
 721                 {
 722                         Debug( LDAP_DEBUG_TRACE,
 723                                 "<=- " LDAP_XSTRING(bdb_modrdn)
 724                                 ": post-read failed!\n", 0, 0, 0 );
 725                         goto return_results;
 726                 }
 727         }
 728
 729         if( op->o_noop ) {
 730                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 731                         rs->sr_text = "txn_abort (no-op) failed";
 732                 } else {
 733                         rs->sr_err = LDAP_X_NO_OPERATION;
 734                         ltid = NULL;
 735                         /* Only free attrs if they were dup'd.  */
 736                         if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 737                         goto return_results;
 738                 }
 739
 740         } else {
 741                 rc = bdb_cache_modrdn( bdb, e, &op->orr_nnewrdn, &dummy, neip,
 742                         locker, &lock );
 743                 switch( rc ) {
 744                 case DB_LOCK_DEADLOCK:
 745                 case DB_LOCK_NOTGRANTED:
 746                         goto retry;
 747                 }
 748                 dummy.e_attrs = NULL;
 749                 new_dn.bv_val = NULL;
 750                 new_ndn.bv_val = NULL;
 751
 752                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 753                         rs->sr_text = "txn_commit failed";
 754                 } else {
 755                         rs->sr_err = LDAP_SUCCESS;
 756                 }
 757         }
 758
 759         ltid = NULL;
 760         op->o_private = NULL;
 761
 762         if( rs->sr_err != LDAP_SUCCESS ) {
 763                 Debug( LDAP_DEBUG_TRACE,
 764                         LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
 765                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 766                 rs->sr_err = LDAP_OTHER;
 767
 768                 goto return_results;
 769         }
 770
 771         Debug(LDAP_DEBUG_TRACE,
 772                 LDAP_XSTRING(bdb_modrdn)
 773                 ": rdn modified%s id=%08lx dn=\"%s\"\n",
 774                 op->o_noop ? " (no-op)" : "",
 775                 dummy.e_id, op->o_req_dn.bv_val );
 776         rs->sr_text = NULL;
 777         if( num_ctrls ) rs->sr_ctrls = ctrls;
 778
 779 return_results:
 780         if ( dummy.e_attrs ) {
 781                 attrs_free( dummy.e_attrs );
 782         }
 783         send_ldap_result( op, rs );
 784
 785         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 786                 TXN_CHECKPOINT( bdb->bi_dbenv,
 787                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 788         }
 789
 790         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 791                 op->o_delete_glue_parent = 1;
 792         }
 793
 794 done:
 795         slap_graduate_commit_csn( op );
 796
 797         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 798         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 799
 800         /* LDAP v2 supporting correct attribute handling. */
 801         if ( new_rdn != NULL ) {
 802                 ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
 803         }
 804
 805         if ( old_rdn != NULL ) {
 806                 ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
 807         }
 808
 809         if( mod != NULL ) {
 810                 slap_modrdn2mods_free( mod );
 811         }
 812
 813         /* LDAP v3 Support */
 814         if( np != NULL ) {
 815                 /* free new parent and reader lock */
 816                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 817         }
 818
 819         if( p != NULL ) {
 820                 /* free parent and reader lock */
 821                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 822         }
 823
 824         /* free entry */
 825         if( e != NULL ) {
 826                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 827         }
 828
 829         if( ltid != NULL ) {
 830                 TXN_ABORT( ltid );
 831         }
 832         op->o_private = NULL;
 833
 834         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 835                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 836                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 837         }
 838         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 839                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 840                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 841         }
 842         return rs->sr_err;
 843 }