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