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