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 2000-2004 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 #include "external.h"
  24
  25 int
  26 bdb_modrdn( Operation   *op, SlapReply *rs )
  27 {
  28         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  29         AttributeDescription *children = slap_schema.si_ad_children;
  30         AttributeDescription *entry = slap_schema.si_ad_entry;
  31         struct berval   p_dn, p_ndn;
  32         struct berval   new_dn = {0, NULL}, new_ndn = {0, NULL};
  33         int             isroot = -1;
  34         Entry           *e = NULL;
  35         Entry           *p = NULL;
  36         EntryInfo       *ei = NULL, *eip = NULL, *nei = NULL, *neip = NULL;
  37         /* LDAP v2 supporting correct attribute handling. */
  38         LDAPRDN         new_rdn = NULL;
  39         LDAPRDN         old_rdn = NULL;
  40         char textbuf[SLAP_TEXT_BUFLEN];
  41         size_t textlen = sizeof textbuf;
  42         DB_TXN          *ltid = NULL, *lt2;
  43         struct bdb_op_info opinfo;
  44         Entry dummy = {0};
  45
  46         ID                      id;
  47
  48         Entry           *np = NULL;                     /* newSuperior Entry */
  49         struct berval   *np_dn = NULL;                  /* newSuperior dn */
  50         struct berval   *np_ndn = NULL;                 /* newSuperior ndn */
  51         struct berval   *new_parent_dn = NULL;  /* np_dn, p_dn, or NULL */
  52
  53         /* Used to interface with bdb_modify_internal() */
  54         Modifications   *mod = NULL;            /* Used to delete old rdn */
  55
  56         int             manageDSAit = get_manageDSAit( op );
  57
  58         u_int32_t       locker = 0;
  59         DB_LOCK         lock, plock, nplock;
  60
  61         int             num_retries = 0;
  62
  63         LDAPControl **preread_ctrl = NULL;
  64         LDAPControl **postread_ctrl = NULL;
  65         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  66         int num_ctrls = 0;
  67
  68         Operation *ps_list;
  69         struct psid_entry *pm_list, *pm_prev;
  70         int     rc;
  71         EntryInfo       *suffix_ei;
  72         Entry           *ctxcsn_e;
  73         int                     ctxcsn_added = 0;
  74
  75         int parent_is_glue = 0;
  76         int parent_is_leaf = 0;
  77
  78         ctrls[num_ctrls] = NULL;
  79
  80         Debug( LDAP_DEBUG_TRACE, "==>bdb_modrdn(%s,%s,%s)\n",
  81                 op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
  82                 op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
  83
  84         if( 0 ) {
  85 retry:  /* transaction retry */
  86                 if ( dummy.e_attrs ) {
  87                         attrs_free( dummy.e_attrs );
  88                         dummy.e_attrs = NULL;
  89                 }
  90                 if (e != NULL) {
  91                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
  92                         e = NULL;
  93                 }
  94                 if (p != NULL) {
  95                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
  96                         p = NULL;
  97                 }
  98                 if (np != NULL) {
  99                         bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 100                         np = NULL;
 101                 }
 102                 Debug( LDAP_DEBUG_TRACE, "==>bdb_modrdn: retrying...\n", 0, 0, 0 );
 103                 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 104                 while ( pm_list != NULL ) {
 105                         LDAP_LIST_REMOVE ( pm_list, ps_link );
 106                         pm_prev = pm_list;
 107                         pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 108                         ch_free( pm_prev );
 109                 }
 110
 111                 rs->sr_err = TXN_ABORT( ltid );
 112                 ltid = NULL;
 113                 op->o_private = NULL;
 114                 op->o_do_not_cache = opinfo.boi_acl_cache;
 115                 if( rs->sr_err != 0 ) {
 116                         rs->sr_err = LDAP_OTHER;
 117                         rs->sr_text = "internal error";
 118                         goto return_results;
 119                 }
 120                 parent_is_glue = 0;
 121                 parent_is_leaf = 0;
 122                 ldap_pvt_thread_yield();
 123                 bdb_trans_backoff( ++num_retries );
 124         }
 125
 126         /* begin transaction */
 127         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 128                 bdb->bi_db_opflags );
 129         rs->sr_text = NULL;
 130         if( rs->sr_err != 0 ) {
 131                 Debug( LDAP_DEBUG_TRACE,
 132                         "bdb_delete: txn_begin failed: %s (%d)\n",
 133                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 134                 rs->sr_err = LDAP_OTHER;
 135                 rs->sr_text = "internal error";
 136                 goto return_results;
 137         }
 138
 139         locker = TXN_ID ( ltid );
 140
 141         opinfo.boi_bdb = op->o_bd;
 142         opinfo.boi_txn = ltid;
 143         opinfo.boi_locker = locker;
 144         opinfo.boi_err = 0;
 145         opinfo.boi_acl_cache = op->o_do_not_cache;
 146         op->o_private = &opinfo;
 147
 148         /* get entry */
 149         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 150                 locker, &lock );
 151
 152         switch( rs->sr_err ) {
 153         case 0:
 154         case DB_NOTFOUND:
 155                 break;
 156         case DB_LOCK_DEADLOCK:
 157         case DB_LOCK_NOTGRANTED:
 158                 goto retry;
 159         case LDAP_BUSY:
 160                 rs->sr_text = "ldap server busy";
 161                 goto return_results;
 162         default:
 163                 rs->sr_err = LDAP_OTHER;
 164                 rs->sr_text = "internal error";
 165                 goto return_results;
 166         }
 167
 168         e = ei->bei_e;
 169         /* FIXME: dn2entry() should return non-glue entry */
 170         if (( rs->sr_err == DB_NOTFOUND ) ||
 171                 ( !manageDSAit && e && is_entry_glue( e )))
 172         {
 173                 BerVarray deref = NULL;
 174                 if( e != NULL ) {
 175                         rs->sr_matched = ch_strdup( e->e_dn );
 176                         rs->sr_ref = is_entry_referral( e )
 177                                 ? get_entry_referrals( op, e )
 178                                 : NULL;
 179                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
 180                         e = NULL;
 181
 182                 } else {
 183                         if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 184                                 syncinfo_t *si;
 185                                 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
 186                                         struct berval tmpbv;
 187                                         ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
 188                                         ber_bvarray_add( &deref, &tmpbv );
 189                 }
 190                         } else {
 191                                 deref = default_referral;
 192                         }
 193                         rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
 194                                         LDAP_SCOPE_DEFAULT );
 195                 }
 196
 197                 rs->sr_err = LDAP_REFERRAL;
 198                 send_ldap_result( op, rs );
 199
 200                 ber_bvarray_free( rs->sr_ref );
 201                 if ( deref != default_referral ) {
 202                         ber_bvarray_free( deref );
 203                 }
 204                 free( (char *)rs->sr_matched );
 205                 rs->sr_ref = NULL;
 206                 rs->sr_matched = NULL;
 207
 208                 goto done;
 209         }
 210
 211         if ( get_assert( op ) &&
 212                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 213         {
 214                 rs->sr_err = LDAP_ASSERTION_FAILED;
 215                 goto return_results;
 216         }
 217
 218         /* check write on old entry */
 219         rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
 220         if ( ! rs->sr_err ) {
 221                 switch( opinfo.boi_err ) {
 222                 case DB_LOCK_DEADLOCK:
 223                 case DB_LOCK_NOTGRANTED:
 224                         goto retry;
 225                 }
 226
 227                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
 228                         0, 0 );
 229                 rs->sr_text = "no write access to old entry";
 230                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 231                 goto return_results;
 232         }
 233
 234 #ifndef BDB_HIER
 235         rs->sr_err = bdb_cache_children( op, ltid, e );
 236         if ( rs->sr_err != DB_NOTFOUND ) {
 237                 switch( rs->sr_err ) {
 238                 case DB_LOCK_DEADLOCK:
 239                 case DB_LOCK_NOTGRANTED:
 240                         goto retry;
 241                 case 0:
 242                         Debug(LDAP_DEBUG_ARGS,
 243                                 "<=- bdb_modrdn: non-leaf %s\n",
 244                                 op->o_req_dn.bv_val, 0, 0);
 245                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 246                         rs->sr_text = "subtree rename not supported";
 247                         break;
 248                 default:
 249                         Debug(LDAP_DEBUG_ARGS,
 250                                 "<=- bdb_modrdn: has_children failed: %s (%d)\n",
 251                                 db_strerror(rs->sr_err), rs->sr_err, 0 );
 252                         rs->sr_err = LDAP_OTHER;
 253                         rs->sr_text = "internal error";
 254                 }
 255                 goto return_results;
 256         }
 257         ei->bei_state |= CACHE_ENTRY_NO_KIDS;
 258 #endif
 259
 260         if (!manageDSAit && is_entry_referral( e ) ) {
 261                 /* parent is a referral, don't allow add */
 262                 rs->sr_ref = get_entry_referrals( op, e );
 263
 264                 Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: entry %s is referral\n",
 265                         e->e_dn, 0, 0 );
 266
 267                 rs->sr_err = LDAP_REFERRAL,
 268                 rs->sr_matched = e->e_name.bv_val;
 269                 send_ldap_result( op, rs );
 270
 271                 ber_bvarray_free( rs->sr_ref );
 272                 rs->sr_ref = NULL;
 273                 rs->sr_matched = NULL;
 274                 goto done;
 275         }
 276
 277         if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
 278                 p_ndn = slap_empty_bv;
 279         } else {
 280                 dnParent( &e->e_nname, &p_ndn );
 281         }
 282         np_ndn = &p_ndn;
 283         if ( p_ndn.bv_len != 0 ) {
 284                 /* Make sure parent entry exist and we can write its
 285                  * children.
 286                  */
 287                 eip = ei->bei_parent;
 288                 rs->sr_err = bdb_cache_find_id( op, ltid,
 289                         eip->bei_id, &eip, 0, locker, &plock );
 290
 291                 switch( rs->sr_err ) {
 292                 case 0:
 293                 case DB_NOTFOUND:
 294                         break;
 295                 case DB_LOCK_DEADLOCK:
 296                 case DB_LOCK_NOTGRANTED:
 297                         goto retry;
 298                 case LDAP_BUSY:
 299                         rs->sr_text = "ldap server busy";
 300                         goto return_results;
 301                 default:
 302                         rs->sr_err = LDAP_OTHER;
 303                         rs->sr_text = "internal error";
 304                         goto return_results;
 305                 }
 306
 307                 p = eip->bei_e;
 308                 if( p == NULL) {
 309                         Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: parent does not exist\n",
 310                                 0, 0, 0);
 311                         rs->sr_err = LDAP_OTHER;
 312                         rs->sr_text = "old entry's parent does not exist";
 313                         goto return_results;
 314                 }
 315
 316                 /* check parent for "children" acl */
 317                 rs->sr_err = access_allowed( op, p,
 318                         children, NULL, ACL_WRITE, NULL );
 319
 320                 if ( ! rs->sr_err ) {
 321                         switch( opinfo.boi_err ) {
 322                         case DB_LOCK_DEADLOCK:
 323                         case DB_LOCK_NOTGRANTED:
 324                                 goto retry;
 325                         }
 326
 327                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 328                         Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 329                                 0, 0 );
 330                         rs->sr_text = "no write access to old parent's children";
 331                         goto return_results;
 332                 }
 333
 334                 Debug( LDAP_DEBUG_TRACE,
 335                         "bdb_modrdn: wr to children of entry %s OK\n",
 336                         p_ndn.bv_val, 0, 0 );
 337
 338                 if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
 339                         p_dn = slap_empty_bv;
 340                 } else {
 341                         dnParent( &e->e_name, &p_dn );
 342                 }
 343
 344                 Debug( LDAP_DEBUG_TRACE,
 345                         "bdb_modrdn: parent dn=%s\n",
 346                         p_dn.bv_val, 0, 0 );
 347
 348         } else {
 349                 /* no parent, modrdn entry directly under root */
 350                 isroot = be_isroot( op );
 351                 if ( ! isroot ) {
 352                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 353                                 || be_shadow_update( op ) ) {
 354
 355                                 p = (Entry *)&slap_entry_root;
 356
 357                                 /* check parent for "children" acl */
 358                                 rs->sr_err = access_allowed( op, p,
 359                                         children, NULL, ACL_WRITE, NULL );
 360
 361                                 p = NULL;
 362
 363                                 if ( ! rs->sr_err ) {
 364                                         switch( opinfo.boi_err ) {
 365                                         case DB_LOCK_DEADLOCK:
 366                                         case DB_LOCK_NOTGRANTED:
 367                                                 goto retry;
 368                                         }
 369
 370                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 371                                         Debug( LDAP_DEBUG_TRACE,
 372                                                 "no access to parent\n",
 373                                                 0, 0, 0 );
 374                                         rs->sr_text = "no write access to old parent";
 375                                         goto return_results;
 376                                 }
 377
 378                                 Debug( LDAP_DEBUG_TRACE,
 379                                         "bdb_modrdn: wr to children of entry \"\" OK\n",
 380                                         0, 0, 0 );
 381
 382                                 p_dn.bv_val = "";
 383                                 p_dn.bv_len = 0;
 384
 385                                 Debug( LDAP_DEBUG_TRACE,
 386                                         "bdb_modrdn: parent dn=\"\"\n",
 387                                         0, 0, 0 );
 388
 389                         } else {
 390                                 Debug( LDAP_DEBUG_TRACE,
 391                                         "bdb_modrdn: no parent, not root "
 392                                         "& \"\" is not suffix\n",
 393                                         0, 0, 0);
 394                                 rs->sr_text = "no write access to old parent";
 395                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 396                                 goto return_results;
 397                         }
 398                 }
 399         }
 400
 401         new_parent_dn = &p_dn;  /* New Parent unless newSuperior given */
 402
 403         if ( op->oq_modrdn.rs_newSup != NULL ) {
 404                 Debug( LDAP_DEBUG_TRACE,
 405                         "bdb_modrdn: new parent \"%s\" requested...\n",
 406                         op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
 407
 408                 /*  newSuperior == oldParent? */
 409                 if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
 410                         Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
 411                                 "new parent \"%s\" same as the old parent \"%s\"\n",
 412                                 op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
 413                         op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
 414                 }
 415         }
 416
 417         if ( op->oq_modrdn.rs_newSup != NULL ) {
 418                 if ( op->oq_modrdn.rs_newSup->bv_len ) {
 419                         np_dn = op->oq_modrdn.rs_newSup;
 420                         np_ndn = op->oq_modrdn.rs_nnewSup;
 421
 422                         /* newSuperior == oldParent?, if so ==> ERROR */
 423                         /* newSuperior == entry being moved?, if so ==> ERROR */
 424                         /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 425
 426                         rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
 427                                 &neip, 0, locker, &nplock );
 428
 429                         switch( rs->sr_err ) {
 430                         case 0: np = neip->bei_e;
 431                         case DB_NOTFOUND:
 432                                 break;
 433                         case DB_LOCK_DEADLOCK:
 434                         case DB_LOCK_NOTGRANTED:
 435                                 goto retry;
 436                         case LDAP_BUSY:
 437                                 rs->sr_text = "ldap server busy";
 438                                 goto return_results;
 439                         default:
 440                                 rs->sr_err = LDAP_OTHER;
 441                                 rs->sr_text = "internal error";
 442                                 goto return_results;
 443                         }
 444
 445                         if( np == NULL) {
 446                                 Debug( LDAP_DEBUG_TRACE,
 447                                         "bdb_modrdn: newSup(ndn=%s) not here!\n",
 448                                         np_ndn->bv_val, 0, 0);
 449                                 rs->sr_text = "new superior not found";
 450                                 rs->sr_err = LDAP_OTHER;
 451                                 goto return_results;
 452                         }
 453
 454                         Debug( LDAP_DEBUG_TRACE,
 455                                 "bdb_modrdn: wr to new parent OK np=%p, id=%ld\n",
 456                                 (void *) np, (long) np->e_id, 0 );
 457
 458                         /* check newSuperior for "children" acl */
 459                         rs->sr_err = access_allowed( op, np, children,
 460                                 NULL, ACL_WRITE, NULL );
 461
 462                         if( ! rs->sr_err ) {
 463                                 switch( opinfo.boi_err ) {
 464                                 case DB_LOCK_DEADLOCK:
 465                                 case DB_LOCK_NOTGRANTED:
 466                                         goto retry;
 467                                 }
 468
 469                                 Debug( LDAP_DEBUG_TRACE,
 470                                         "bdb_modrdn: no wr to newSup children\n",
 471                                         0, 0, 0 );
 472                                 rs->sr_text = "no write access to new superior's children";
 473                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 474                                 goto return_results;
 475                         }
 476
 477 #ifdef BDB_ALIASES
 478                         if ( is_entry_alias( np ) ) {
 479                                 /* parent is an alias, don't allow add */
 480                                 Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: entry is alias\n",
 481                                         0, 0, 0 );
 482                                 rs->sr_text = "new superior is an alias";
 483                                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 484                                 goto return_results;
 485                         }
 486 #endif
 487
 488                         if ( is_entry_referral( np ) ) {
 489                                 /* parent is a referral, don't allow add */
 490                                 Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: entry is referral\n",
 491                                         0, 0, 0 );
 492                                 rs->sr_text = "new superior is a referral";
 493                                 rs->sr_err = LDAP_OTHER;
 494                                 goto return_results;
 495                         }
 496
 497                 } else {
 498                         if ( isroot == -1 ) {
 499                                 isroot = be_isroot( op );
 500                         }
 501
 502                         np_dn = NULL;
 503
 504                         /* no parent, modrdn entry directly under root */
 505                         if ( ! isroot ) {
 506                                 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
 507                                         || be_isupdate( op ) ) {
 508                                         np = (Entry *)&slap_entry_root;
 509
 510                                         /* check parent for "children" acl */
 511                                         rs->sr_err = access_allowed( op, np,
 512                                                 children, NULL, ACL_WRITE, NULL );
 513
 514                                         np = NULL;
 515
 516                                         if ( ! rs->sr_err ) {
 517                                                 switch( opinfo.boi_err ) {
 518                                                 case DB_LOCK_DEADLOCK:
 519                                                 case DB_LOCK_NOTGRANTED:
 520                                                         goto retry;
 521                                                 }
 522
 523                                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 524                                                 Debug( LDAP_DEBUG_TRACE,
 525                                                         "no access to new superior\n",
 526                                                         0, 0, 0 );
 527                                                 rs->sr_text =
 528                                                         "no write access to new superior's children";
 529                                                 goto return_results;
 530                                         }
 531
 532                                         Debug( LDAP_DEBUG_TRACE,
 533                                                 "bdb_modrdn: wr to children of entry \"\" OK\n",
 534                                                 0, 0, 0 );
 535
 536                                 } else {
 537                                         Debug( LDAP_DEBUG_TRACE,
 538                                                 "bdb_modrdn: new superior=\"\", not root "
 539                                                 "& \"\" is not suffix\n",
 540                                                 0, 0, 0);
 541                                         rs->sr_text = "no write access to new superior's children";
 542                                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 543                                         goto return_results;
 544                                 }
 545                         }
 546
 547                         Debug( LDAP_DEBUG_TRACE,
 548                                 "bdb_modrdn: new superior=\"\"\n",
 549                                 0, 0, 0 );
 550                 }
 551
 552                 Debug( LDAP_DEBUG_TRACE,
 553                         "bdb_modrdn: wr to new parent's children OK\n",
 554                         0, 0, 0 );
 555
 556                 new_parent_dn = np_dn;
 557         }
 558
 559         /* Build target dn and make sure target entry doesn't exist already. */
 560         if (!new_dn.bv_val) {
 561                 build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
 562         }
 563
 564         if (!new_ndn.bv_val) {
 565                 struct berval bv = {0, NULL};
 566                 dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
 567                 ber_dupbv( &new_ndn, &bv );
 568         }
 569
 570         Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: new ndn=%s\n",
 571                 new_ndn.bv_val, 0, 0 );
 572
 573         /* Shortcut the search */
 574         nei = neip ? neip : eip;
 575         rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
 576         if ( nei ) bdb_cache_entryinfo_unlock( nei );
 577         switch( rs->sr_err ) {
 578         case DB_LOCK_DEADLOCK:
 579         case DB_LOCK_NOTGRANTED:
 580                 goto retry;
 581         case DB_NOTFOUND:
 582                 break;
 583         case 0:
 584                 rs->sr_err = LDAP_ALREADY_EXISTS;
 585                 goto return_results;
 586         default:
 587                 rs->sr_err = LDAP_OTHER;
 588                 rs->sr_text = "internal error";
 589                 goto return_results;
 590         }
 591
 592         /* Get attribute type and attribute value of our new rdn, we will
 593          * need to add that to our new entry
 594          */
 595         if ( !new_rdn && ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
 596                 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 597         {
 598                 Debug( LDAP_DEBUG_TRACE,
 599                         "bdb_modrdn: can't figure out "
 600                         "type(s)/values(s) of newrdn\n",
 601                         0, 0, 0 );
 602                 rs->sr_err = LDAP_INVALID_DN_SYNTAX;
 603                 rs->sr_text = "unknown type(s) used in RDN";
 604                 goto return_results;
 605         }
 606
 607         Debug( LDAP_DEBUG_TRACE,
 608                 "bdb_modrdn: new_rdn_type=\"%s\", new_rdn_val=\"%s\"\n",
 609                 new_rdn[ 0 ]->la_attr.bv_val, new_rdn[ 0 ]->la_value.bv_val, 0 );
 610
 611         if ( op->oq_modrdn.rs_deleteoldrdn ) {
 612                 if ( !old_rdn && ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
 613                         (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) )
 614                 {
 615                         Debug( LDAP_DEBUG_TRACE,
 616                                 "bdb_modrdn: can't figure out "
 617                                 "the old_rdn type(s)/value(s)\n",
 618                                 0, 0, 0 );
 619                         rs->sr_err = LDAP_OTHER;
 620                         rs->sr_text = "cannot parse RDN from old DN";
 621                         goto return_results;
 622                 }
 623         }
 624
 625         /* prepare modlist of modifications from old/new rdn */
 626         if (!mod) {
 627                 rs->sr_err = slap_modrdn2mods( op, rs, e, old_rdn, new_rdn, &mod );
 628                 if ( rs->sr_err != LDAP_SUCCESS ) {
 629                         goto return_results;
 630                 }
 631         }
 632
 633         if( op->o_preread ) {
 634                 if( preread_ctrl == NULL ) {
 635                         preread_ctrl = &ctrls[num_ctrls++];
 636                         ctrls[num_ctrls] = NULL;
 637                 }
 638                 if( slap_read_controls( op, rs, e,
 639                         &slap_pre_read_bv, preread_ctrl ) )
 640                 {
 641                         Debug( LDAP_DEBUG_TRACE,
 642                                 "<=- bdb_modrdn: post-read failed!\n", 0, 0, 0 );
 643                         goto return_results;
 644                 }
 645         }
 646
 647         /* nested transaction */
 648         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 649         rs->sr_text = NULL;
 650         if( rs->sr_err != 0 ) {
 651                 Debug( LDAP_DEBUG_TRACE,
 652                         "bdb_modrdn: txn_begin(2) failed: %s (%d)\n",
 653                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 654                 rs->sr_err = LDAP_OTHER;
 655                 rs->sr_text = "internal error";
 656                 goto return_results;
 657         }
 658
 659         /* delete old DN */
 660         rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
 661         if ( rs->sr_err != 0 ) {
 662                 Debug(LDAP_DEBUG_TRACE,
 663                         "<=- bdb_modrdn: dn2id del failed: %s (%d)\n",
 664                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 665                 switch( rs->sr_err ) {
 666                 case DB_LOCK_DEADLOCK:
 667                 case DB_LOCK_NOTGRANTED:
 668                         goto retry;
 669                 }
 670                 rs->sr_err = LDAP_OTHER;
 671                 rs->sr_text = "DN index delete fail";
 672                 goto return_results;
 673         }
 674
 675         /* copy the entry, then override some fields */
 676         dummy = *e;
 677         dummy.e_name = new_dn;
 678         dummy.e_nname = new_ndn;
 679         dummy.e_attrs = NULL;
 680
 681         /* add new DN */
 682         rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
 683         if ( rs->sr_err != 0 ) {
 684                 Debug(LDAP_DEBUG_TRACE,
 685                         "<=- bdb_modrdn: dn2id add failed: %s (%d)\n",
 686                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 687                 switch( rs->sr_err ) {
 688                 case DB_LOCK_DEADLOCK:
 689                 case DB_LOCK_NOTGRANTED:
 690                         goto retry;
 691                 }
 692                 rs->sr_err = LDAP_OTHER;
 693                 rs->sr_text = "DN index add failed";
 694                 goto return_results;
 695         }
 696
 697         dummy.e_attrs = e->e_attrs;
 698
 699         if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop && !op->o_no_psearch ) {
 700                 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
 701                 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 702                         rc = bdb_psearch( op, rs, ps_list, &dummy, LDAP_PSEARCH_BY_PREMODIFY );
 703                         if ( rc ) {
 704                                 Debug( LDAP_DEBUG_TRACE,
 705                                         "bdb_modrdn: persistent search failed (%d,%d)\n",
 706                                         rc, rs->sr_err, 0 );
 707                         }
 708                 }
 709                 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
 710         }
 711
 712
 713         /* modify entry */
 714         rs->sr_err = bdb_modify_internal( op, lt2, &mod[0], &dummy,
 715                 &rs->sr_text, textbuf, textlen );
 716         if( rs->sr_err != LDAP_SUCCESS ) {
 717                 Debug(LDAP_DEBUG_TRACE,
 718                         "<=- bdb_modrdn: modify failed: %s (%d)\n",
 719                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 720                 if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
 721                         rs->sr_err = opinfo.boi_err;
 722                 }
 723                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 724                 switch( rs->sr_err ) {
 725                 case DB_LOCK_DEADLOCK:
 726                 case DB_LOCK_NOTGRANTED:
 727                         goto retry;
 728                 }
 729                 goto return_results;
 730         }
 731
 732         /* id2entry index */
 733         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 734         if ( rs->sr_err != 0 ) {
 735                 Debug(LDAP_DEBUG_TRACE,
 736                         "<=- bdb_modrdn: id2entry failed: %s (%d)\n",
 737                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 738                 switch( rs->sr_err ) {
 739                 case DB_LOCK_DEADLOCK:
 740                 case DB_LOCK_NOTGRANTED:
 741                         goto retry;
 742                 }
 743                 rs->sr_err = LDAP_OTHER;
 744                 rs->sr_text = "entry update failed";
 745                 goto return_results;
 746         }
 747
 748         if ( p_ndn.bv_len != 0 ) {
 749                 parent_is_glue = is_entry_glue(p);
 750                 rs->sr_err = bdb_cache_children( op, lt2, p );
 751                 if ( rs->sr_err != DB_NOTFOUND ) {
 752                         switch( rs->sr_err ) {
 753                         case DB_LOCK_DEADLOCK:
 754                         case DB_LOCK_NOTGRANTED:
 755                                 goto retry;
 756                         case 0:
 757                                 break;
 758                         default:
 759                                 Debug(LDAP_DEBUG_ARGS,
 760                                         "<=- bdb_modrdn: has_children failed: %s (%d)\n",
 761                                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 762                                 rs->sr_err = LDAP_OTHER;
 763                                 rs->sr_text = "internal error";
 764                                 goto return_results;
 765                         }
 766                         parent_is_leaf = 1;
 767                 }
 768                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 769                 p = NULL;
 770         }
 771
 772         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 773                 rs->sr_err = LDAP_OTHER;
 774                 rs->sr_text = "txn_commit(2) failed";
 775                 goto return_results;
 776         }
 777
 778         if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 779                 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
 780                         &ctxcsn_e, &ctxcsn_added, locker );
 781                 switch ( rc ) {
 782                 case BDB_CSN_ABORT :
 783                         goto return_results;
 784                 case BDB_CSN_RETRY :
 785                         goto retry;
 786                 }
 787         }
 788
 789         if( op->o_postread ) {
 790                 if( postread_ctrl == NULL ) {
 791                         postread_ctrl = &ctrls[num_ctrls++];
 792                         ctrls[num_ctrls] = NULL;
 793                 }
 794                 if( slap_read_controls( op, rs, &dummy,
 795                         &slap_post_read_bv, postread_ctrl ) )
 796                 {
 797                         Debug( LDAP_DEBUG_TRACE,
 798                                 "<=- bdb_modrdn: post-read failed!\n", 0, 0, 0 );
 799                         goto return_results;
 800                 }
 801         }
 802
 803         if( op->o_noop ) {
 804                 if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 805                         rs->sr_text = "txn_abort (no-op) failed";
 806                 } else {
 807                         rs->sr_err = LDAP_SUCCESS;
 808                         goto return_results;
 809                 }
 810
 811         } else {
 812                 rc = bdb_cache_modrdn( e, &op->orr_nnewrdn, &dummy, neip,
 813                         bdb->bi_dbenv, locker, &lock );
 814                 switch( rc ) {
 815                 case DB_LOCK_DEADLOCK:
 816                 case DB_LOCK_NOTGRANTED:
 817                         goto retry;
 818                 }
 819                 dummy.e_attrs = NULL;
 820                 new_dn.bv_val = NULL;
 821                 new_ndn.bv_val = NULL;
 822
 823                 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 824                         if ( ctxcsn_added ) {
 825                                 bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
 826                                         (struct berval *)&slap_ldapsync_cn_bv, locker );
 827                         }
 828                 }
 829
 830                 if ( rs->sr_err == LDAP_SUCCESS ) {
 831                         /* Loop through in-scope entries for each psearch spec */
 832                         ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
 833                         LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 834                                 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_MODIFY );
 835                                 if ( rc ) {
 836                                         Debug( LDAP_DEBUG_TRACE,
 837                                                 "bdb_modrdn: persistent search failed (%d,%d)\n",
 838                                                 rc, rs->sr_err, 0 );
 839                         }
 840                         }
 841                         pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 842                         while ( pm_list != NULL ) {
 843                                 rc = bdb_psearch(op, rs, pm_list->ps_op,
 844                                                         e, LDAP_PSEARCH_BY_SCOPEOUT);
 845                                 if ( rc ) {
 846                                         Debug( LDAP_DEBUG_TRACE,
 847                                                 "bdb_modrdn: persistent search failed (%d,%d)\n",
 848                                                 rc, rs->sr_err, 0 );
 849                                 }
 850                                 pm_prev = pm_list;
 851                                 LDAP_LIST_REMOVE ( pm_list, ps_link );
 852                                 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 853                                 ch_free( pm_prev );
 854                         }
 855                         ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
 856                 }
 857
 858                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 859                         rs->sr_text = "txn_commit failed";
 860                 } else {
 861                         rs->sr_err = LDAP_SUCCESS;
 862                 }
 863         }
 864
 865         ltid = NULL;
 866         op->o_private = NULL;
 867
 868         if( rs->sr_err != LDAP_SUCCESS ) {
 869                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s : %s (%d)\n",
 870                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 871                 rs->sr_err = LDAP_OTHER;
 872
 873                 goto return_results;
 874         }
 875
 876         Debug(LDAP_DEBUG_TRACE,
 877                 "bdb_modrdn: rdn modified%s id=%08lx dn=\"%s\"\n",
 878                 op->o_noop ? " (no-op)" : "",
 879                 e->e_id, e->e_dn );
 880         rs->sr_text = NULL;
 881         if( num_ctrls ) rs->sr_ctrls = ctrls;
 882
 883 return_results:
 884         if ( dummy.e_attrs ) {
 885                 attrs_free( dummy.e_attrs );
 886         }
 887         send_ldap_result( op, rs );
 888
 889         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 890                 ldap_pvt_thread_yield();
 891                 TXN_CHECKPOINT( bdb->bi_dbenv,
 892                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 893         }
 894
 895         if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
 896                 op->o_delete_glue_parent = 1;
 897         }
 898
 899 done:
 900         if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
 901         if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
 902
 903         /* LDAP v2 supporting correct attribute handling. */
 904         if ( new_rdn != NULL ) {
 905                 ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
 906         }
 907         if ( old_rdn != NULL ) {
 908                 ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
 909         }
 910         if( mod != NULL ) {
 911                 Modifications *tmp;
 912                 for (; mod; mod=tmp ) {
 913                         tmp = mod->sml_next;
 914                         /* slap_modrdn2mods does things one way,
 915                          * slap_mods_opattrs does it differently
 916                          */
 917                         if ( mod->sml_op != SLAP_MOD_SOFTADD &&
 918                                 mod->sml_op != LDAP_MOD_DELETE ) break;
 919                         if ( mod->sml_nvalues ) free( mod->sml_nvalues[0].bv_val );
 920                         free( mod );
 921                 }
 922                 slap_mods_free( mod );
 923         }
 924
 925         /* LDAP v3 Support */
 926         if( np != NULL ) {
 927                 /* free new parent and reader lock */
 928                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
 929         }
 930
 931         if( p != NULL ) {
 932                 /* free parent and reader lock */
 933                 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
 934         }
 935
 936         /* free entry */
 937         if( e != NULL ) {
 938                 bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
 939         }
 940
 941         if( ltid != NULL ) {
 942                 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
 943                 while ( pm_list != NULL ) {
 944                         LDAP_LIST_REMOVE ( pm_list, ps_link );
 945                         pm_prev = pm_list;
 946                         pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
 947                         ch_free( pm_prev );
 948                 }
 949                 TXN_ABORT( ltid );
 950                 op->o_private = NULL;
 951         }
 952
 953         if( preread_ctrl != NULL ) {
 954                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
 955                 slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );
 956         }
 957         if( postread_ctrl != NULL ) {
 958                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
 959                 slap_sl_free( *postread_ctrl, &op->o_tmpmemctx );
 960         }
 961         return rs->sr_err;
 962 }