external/bsd/openldap/dist/servers/slapd/back-bdb/modify.c

   1 /* modify.c - bdb backend modify routine */
   2 /* $OpenLDAP: pkg/ldap/servers/slapd/back-bdb/modify.c,v 1.156.2.11 2008/05/01 21:39:35 quanah Exp $ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2008 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/string.h>
  21 #include <ac/time.h>
  22
  23 #include "back-bdb.h"
  24
  25 static struct berval scbva[] = {
  26         BER_BVC("glue"),
  27         BER_BVNULL
  28 };
  29
  30 int bdb_modify_internal(
  31         Operation *op,
  32         DB_TXN *tid,
  33         Modifications *modlist,
  34         Entry *e,
  35         const char **text,
  36         char *textbuf,
  37         size_t textlen )
  38 {
  39         int rc, err;
  40         Modification    *mod;
  41         Modifications   *ml;
  42         Attribute       *save_attrs;
  43         Attribute       *ap;
  44         int                     glue_attr_delete = 0;
  45         int                     got_delete;
  46         AttrInfo *ai;
  47
  48         Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
  49                 e->e_id, e->e_dn, 0);
  50
  51         if ( !acl_check_modlist( op, e, modlist )) {
  52                 return LDAP_INSUFFICIENT_ACCESS;
  53         }
  54
  55         /* save_attrs will be disposed of by bdb_cache_modify */
  56         save_attrs = e->e_attrs;
  57         e->e_attrs = attrs_dup( e->e_attrs );
  58
  59         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
  60                 int match;
  61                 mod = &ml->sml_mod;
  62                 switch( mod->sm_op ) {
  63                 case LDAP_MOD_ADD:
  64                 case LDAP_MOD_REPLACE:
  65                         if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
  66                                 value_match( &match, slap_schema.si_ad_structuralObjectClass,
  67                                         slap_schema.si_ad_structuralObjectClass->
  68                                                 ad_type->sat_equality,
  69                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
  70                                         &mod->sm_values[0], &scbva[0], text );
  71                                 if ( !match ) glue_attr_delete = 1;
  72                         }
  73                 }
  74                 if ( glue_attr_delete )
  75                         break;
  76         }
  77
  78         if ( glue_attr_delete ) {
  79                 Attribute       **app = &e->e_attrs;
  80                 while ( *app != NULL ) {
  81                         if ( !is_at_operational( (*app)->a_desc->ad_type )) {
  82                                 Attribute *save = *app;
  83                                 *app = (*app)->a_next;
  84                                 attr_free( save );
  85                                 continue;
  86                         }
  87                         app = &(*app)->a_next;
  88                 }
  89         }
  90
  91         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
  92                 struct berval ix_at;
  93                 mod = &ml->sml_mod;
  94                 got_delete = 0;
  95
  96                 switch ( mod->sm_op ) {
  97                 case LDAP_MOD_ADD:
  98                         Debug(LDAP_DEBUG_ARGS,
  99                                 "bdb_modify_internal: add %s\n",
 100                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 101                         err = modify_add_values( e, mod, get_permissiveModify(op),
 102                                 text, textbuf, textlen );
 103                         if( err != LDAP_SUCCESS ) {
 104                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 105                                         err, *text, 0);
 106                         }
 107                         break;
 108
 109                 case LDAP_MOD_DELETE:
 110                         if ( glue_attr_delete ) {
 111                                 err = LDAP_SUCCESS;
 112                                 break;
 113                         }
 114
 115                         Debug(LDAP_DEBUG_ARGS,
 116                                 "bdb_modify_internal: delete %s\n",
 117                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 118                         err = modify_delete_values( e, mod, get_permissiveModify(op),
 119                                 text, textbuf, textlen );
 120                         assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
 121                         if( err != LDAP_SUCCESS ) {
 122                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 123                                         err, *text, 0);
 124                         } else {
 125                                 got_delete = 1;
 126                         }
 127                         break;
 128
 129                 case LDAP_MOD_REPLACE:
 130                         Debug(LDAP_DEBUG_ARGS,
 131                                 "bdb_modify_internal: replace %s\n",
 132                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 133                         err = modify_replace_values( e, mod, get_permissiveModify(op),
 134                                 text, textbuf, textlen );
 135                         if( err != LDAP_SUCCESS ) {
 136                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 137                                         err, *text, 0);
 138                         } else {
 139                                 got_delete = 1;
 140                         }
 141                         break;
 142
 143                 case LDAP_MOD_INCREMENT:
 144                         Debug(LDAP_DEBUG_ARGS,
 145                                 "bdb_modify_internal: increment %s\n",
 146                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 147                         err = modify_increment_values( e, mod, get_permissiveModify(op),
 148                                 text, textbuf, textlen );
 149                         if( err != LDAP_SUCCESS ) {
 150                                 Debug(LDAP_DEBUG_ARGS,
 151                                         "bdb_modify_internal: %d %s\n",
 152                                         err, *text, 0);
 153                         } else {
 154                                 got_delete = 1;
 155                         }
 156                         break;
 157
 158                 case SLAP_MOD_SOFTADD:
 159                         Debug(LDAP_DEBUG_ARGS,
 160                                 "bdb_modify_internal: softadd %s\n",
 161                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 162                         /* Avoid problems in index_add_mods()
 163                          * We need to add index if necessary.
 164                          */
 165                         mod->sm_op = LDAP_MOD_ADD;
 166
 167                         err = modify_add_values( e, mod, get_permissiveModify(op),
 168                                 text, textbuf, textlen );
 169
 170                         mod->sm_op = SLAP_MOD_SOFTADD;
 171
 172                         if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
 173                                 err = LDAP_SUCCESS;
 174                         }
 175
 176                         if( err != LDAP_SUCCESS ) {
 177                                 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 178                                         err, *text, 0);
 179                         }
 180                         break;
 181
 182                 default:
 183                         Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
 184                                 mod->sm_op, 0, 0);
 185                         *text = "Invalid modify operation";
 186                         err = LDAP_OTHER;
 187                         Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
 188                                 err, *text, 0);
 189                 }
 190
 191                 if ( err != LDAP_SUCCESS ) {
 192                         attrs_free( e->e_attrs );
 193                         e->e_attrs = save_attrs;
 194                         /* unlock entry, delete from cache */
 195                         return err;
 196                 }
 197
 198                 /* If objectClass was modified, reset the flags */
 199                 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
 200                         e->e_ocflags = 0;
 201                 }
 202
 203                 if ( glue_attr_delete ) e->e_ocflags = 0;
 204
 205                 /* check if modified attribute was indexed
 206                  * but not in case of NOOP... */
 207                 ai = bdb_index_mask( op->o_bd, mod->sm_desc, &ix_at );
 208                 if ( ai && !op->o_noop ) {
 209                         if ( got_delete ) {
 210                                 struct berval ix2;
 211
 212                                 ap = attr_find( save_attrs, mod->sm_desc );
 213                                 if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
 214
 215                                 /* Find all other attrs that index to same slot */
 216                                 for ( ap = e->e_attrs; ap; ap=ap->a_next ) {
 217                                         ai = bdb_index_mask( op->o_bd, ap->a_desc, &ix2 );
 218                                         if ( ai && ix2.bv_val == ix_at.bv_val )
 219                                                 ap->a_flags |= SLAP_ATTR_IXADD;
 220                                 }
 221                         } else {
 222                                 ap = attr_find( e->e_attrs, mod->sm_desc );
 223                                 if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
 224                         }
 225                 }
 226         }
 227
 228         /* check that the entry still obeys the schema */
 229         rc = entry_schema_check( op, e, save_attrs, get_relax(op), 0,
 230                 text, textbuf, textlen );
 231         if ( rc != LDAP_SUCCESS || op->o_noop ) {
 232                 attrs_free( e->e_attrs );
 233                 /* clear the indexing flags */
 234                 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
 235                         ap->a_flags &= ~(SLAP_ATTR_IXADD|SLAP_ATTR_IXDEL);
 236                 }
 237                 e->e_attrs = save_attrs;
 238
 239                 if ( rc != LDAP_SUCCESS ) {
 240                         Debug( LDAP_DEBUG_ANY,
 241                                 "entry failed schema check: %s\n",
 242                                 *text, 0, 0 );
 243                 }
 244
 245                 /* if NOOP then silently revert to saved attrs */
 246                 return rc;
 247         }
 248
 249         /* update the indices of the modified attributes */
 250
 251         /* start with deleting the old index entries */
 252         for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
 253                 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
 254                         struct berval *vals;
 255                         Attribute *a2;
 256                         ap->a_flags &= ~SLAP_ATTR_IXDEL;
 257                         a2 = attr_find( e->e_attrs, ap->a_desc );
 258                         if ( a2 ) {
 259                                 /* need to detect which values were deleted */
 260                                 int i, j;
 261                                 struct berval tmp;
 262                                 j = ap->a_numvals;
 263                                 for ( i=0; i<j; ) {
 264                                         rc = attr_valfind( a2, SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 265                                                 &ap->a_nvals[i], NULL, op->o_tmpmemctx );
 266                                         /* Move deleted values to end of array */
 267                                         if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) {
 268                                                 j--;
 269                                                 if ( i != j ) {
 270                                                         tmp = ap->a_nvals[j];
 271                                                         ap->a_nvals[j] = ap->a_nvals[i];
 272                                                         ap->a_nvals[i] = tmp;
 273                                                         tmp = ap->a_vals[j];
 274                                                         ap->a_vals[j] = ap->a_vals[i];
 275                                                         ap->a_vals[i] = tmp;
 276                                                 }
 277                                                 continue;
 278                                         }
 279                                         i++;
 280                                 }
 281                                 vals = &ap->a_nvals[j];
 282                         } else {
 283                                 /* attribute was completely deleted */
 284                                 vals = ap->a_nvals;
 285                         }
 286                         if ( !BER_BVISNULL( vals )) {
 287                                 rc = bdb_index_values( op, tid, ap->a_desc,
 288                                         vals, e->e_id, SLAP_INDEX_DELETE_OP );
 289                                 if ( rc != LDAP_SUCCESS ) {
 290                                         attrs_free( e->e_attrs );
 291                                         e->e_attrs = save_attrs;
 292                                         Debug( LDAP_DEBUG_ANY,
 293                                                    "Attribute index delete failure",
 294                                                    0, 0, 0 );
 295                                         return rc;
 296                                 }
 297                         }
 298                 }
 299         }
 300
 301         /* add the new index entries */
 302         for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
 303                 if (ap->a_flags & SLAP_ATTR_IXADD) {
 304                         ap->a_flags &= ~SLAP_ATTR_IXADD;
 305                         rc = bdb_index_values( op, tid, ap->a_desc,
 306                                 ap->a_nvals,
 307                                 e->e_id, SLAP_INDEX_ADD_OP );
 308                         if ( rc != LDAP_SUCCESS ) {
 309                                 attrs_free( e->e_attrs );
 310                                 e->e_attrs = save_attrs;
 311                                 Debug( LDAP_DEBUG_ANY,
 312                                        "Attribute index add failure",
 313                                        0, 0, 0 );
 314                                 return rc;
 315                         }
 316                 }
 317         }
 318
 319         return rc;
 320 }
 321
 322
 323 int
 324 bdb_modify( Operation *op, SlapReply *rs )
 325 {
 326         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
 327         Entry           *e = NULL;
 328         EntryInfo       *ei = NULL;
 329         int             manageDSAit = get_manageDSAit( op );
 330         char textbuf[SLAP_TEXT_BUFLEN];
 331         size_t textlen = sizeof textbuf;
 332         DB_TXN  *ltid = NULL, *lt2;
 333         struct bdb_op_info opinfo = {0};
 334         Entry           dummy = {0};
 335         int                     fakeroot = 0;
 336
 337         BDB_LOCKER      locker = 0;
 338         DB_LOCK         lock;
 339
 340         int             num_retries = 0;
 341
 342         LDAPControl **preread_ctrl = NULL;
 343         LDAPControl **postread_ctrl = NULL;
 344         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
 345         int num_ctrls = 0;
 346
 347         int rc;
 348
 349 #ifdef LDAP_X_TXN
 350         int settle = 0;
 351 #endif
 352
 353         Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
 354                 op->o_req_dn.bv_val, 0, 0 );
 355
 356 #ifdef LDAP_X_TXN
 357         if( op->o_txnSpec ) {
 358                 /* acquire connection lock */
 359                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
 360                 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
 361                         rs->sr_text = "invalid transaction identifier";
 362                         rs->sr_err = LDAP_X_TXN_ID_INVALID;
 363                         goto txnReturn;
 364                 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
 365                         settle=1;
 366                         goto txnReturn;
 367                 }
 368
 369                 if( op->o_conn->c_txn_backend == NULL ) {
 370                         op->o_conn->c_txn_backend = op->o_bd;
 371
 372                 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
 373                         rs->sr_text = "transaction cannot span multiple database contexts";
 374                         rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
 375                         goto txnReturn;
 376                 }
 377
 378                 /* insert operation into transaction */
 379
 380                 rs->sr_text = "transaction specified";
 381                 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
 382
 383 txnReturn:
 384                 /* release connection lock */
 385                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 386
 387                 if( !settle ) {
 388                         send_ldap_result( op, rs );
 389                         return rs->sr_err;
 390                 }
 391         }
 392 #endif
 393
 394         ctrls[num_ctrls] = NULL;
 395
 396         slap_mods_opattrs( op, &op->orm_modlist, 1 );
 397
 398         if( 0 ) {
 399 retry:  /* transaction retry */
 400                 if ( dummy.e_attrs ) {
 401                         attrs_free( dummy.e_attrs );
 402                         dummy.e_attrs = NULL;
 403                 }
 404                 if( e != NULL ) {
 405                         bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
 406                         e = NULL;
 407                 }
 408                 Debug(LDAP_DEBUG_TRACE,
 409                         LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
 410
 411                 rs->sr_err = TXN_ABORT( ltid );
 412                 ltid = NULL;
 413                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 414                 opinfo.boi_oe.oe_key = NULL;
 415                 op->o_do_not_cache = opinfo.boi_acl_cache;
 416                 if( rs->sr_err != 0 ) {
 417                         rs->sr_err = LDAP_OTHER;
 418                         rs->sr_text = "internal error";
 419                         goto return_results;
 420                 }
 421                 if ( op->o_abandon ) {
 422                         rs->sr_err = SLAPD_ABANDON;
 423                         goto return_results;
 424                 }
 425                 bdb_trans_backoff( ++num_retries );
 426         }
 427
 428         /* begin transaction */
 429         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 430                 bdb->bi_db_opflags );
 431         rs->sr_text = NULL;
 432         if( rs->sr_err != 0 ) {
 433                 Debug( LDAP_DEBUG_TRACE,
 434                         LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
 435                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 436                 rs->sr_err = LDAP_OTHER;
 437                 rs->sr_text = "internal error";
 438                 goto return_results;
 439         }
 440
 441         locker = TXN_ID ( ltid );
 442
 443         opinfo.boi_oe.oe_key = bdb;
 444         opinfo.boi_txn = ltid;
 445         opinfo.boi_err = 0;
 446         opinfo.boi_acl_cache = op->o_do_not_cache;
 447         LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
 448
 449         /* get entry or ancestor */
 450         rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
 451                 locker, &lock );
 452
 453         if ( rs->sr_err != 0 ) {
 454                 Debug( LDAP_DEBUG_TRACE,
 455                         LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
 456                         rs->sr_err, 0, 0 );
 457                 switch( rs->sr_err ) {
 458                 case DB_LOCK_DEADLOCK:
 459                 case DB_LOCK_NOTGRANTED:
 460                         goto retry;
 461                 case DB_NOTFOUND:
 462                         if ( BER_BVISEMPTY( &op->o_req_ndn )) {
 463                                 struct berval gluebv = BER_BVC("glue");
 464                                 e = ch_calloc( 1, sizeof(Entry));
 465                                 e->e_name.bv_val = ch_strdup( "" );
 466                                 ber_dupbv( &e->e_nname, &e->e_name );
 467                                 attr_merge_one( e, slap_schema.si_ad_objectClass,
 468                                         &gluebv, NULL );
 469                                 attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
 470                                         &gluebv, NULL );
 471                                 e->e_private = ei;
 472                                 fakeroot = 1;
 473                                 rs->sr_err = 0;
 474                         }
 475                         break;
 476                 case LDAP_BUSY:
 477                         rs->sr_text = "ldap server busy";
 478                         goto return_results;
 479                 default:
 480                         rs->sr_err = LDAP_OTHER;
 481                         rs->sr_text = "internal error";
 482                         goto return_results;
 483                 }
 484         }
 485
 486         if ( !fakeroot ) {
 487                 e = ei->bei_e;
 488         }
 489
 490         /* acquire and lock entry */
 491         /* FIXME: dn2entry() should return non-glue entry */
 492         if (( rs->sr_err == DB_NOTFOUND ) ||
 493                 ( !manageDSAit && e && is_entry_glue( e )))
 494         {
 495                 if ( e != NULL ) {
 496                         rs->sr_matched = ch_strdup( e->e_dn );
 497                         rs->sr_ref = is_entry_referral( e )
 498                                 ? get_entry_referrals( op, e )
 499                                 : NULL;
 500                         bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
 501                         e = NULL;
 502
 503                 } else {
 504                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 505                                 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 506                 }
 507
 508                 rs->sr_err = LDAP_REFERRAL;
 509                 send_ldap_result( op, rs );
 510
 511                 if ( rs->sr_ref != default_referral ) {
 512                         ber_bvarray_free( rs->sr_ref );
 513                 }
 514                 free( (char *)rs->sr_matched );
 515                 rs->sr_ref = NULL;
 516                 rs->sr_matched = NULL;
 517
 518                 goto done;
 519         }
 520
 521         if ( !manageDSAit && is_entry_referral( e ) ) {
 522                 /* entry is a referral, don't allow modify */
 523                 rs->sr_ref = get_entry_referrals( op, e );
 524
 525                 Debug( LDAP_DEBUG_TRACE,
 526                         LDAP_XSTRING(bdb_modify) ": entry is referral\n",
 527                         0, 0, 0 );
 528
 529                 rs->sr_err = LDAP_REFERRAL;
 530                 rs->sr_matched = e->e_name.bv_val;
 531                 send_ldap_result( op, rs );
 532
 533                 ber_bvarray_free( rs->sr_ref );
 534                 rs->sr_ref = NULL;
 535                 rs->sr_matched = NULL;
 536                 goto done;
 537         }
 538
 539         if ( get_assert( op ) &&
 540                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 541         {
 542                 rs->sr_err = LDAP_ASSERTION_FAILED;
 543                 goto return_results;
 544         }
 545
 546         if( op->o_preread ) {
 547                 if( preread_ctrl == NULL ) {
 548                         preread_ctrl = &ctrls[num_ctrls++];
 549                         ctrls[num_ctrls] = NULL;
 550                 }
 551                 if ( slap_read_controls( op, rs, e,
 552                         &slap_pre_read_bv, preread_ctrl ) )
 553                 {
 554                         Debug( LDAP_DEBUG_TRACE,
 555                                 "<=- " LDAP_XSTRING(bdb_modify) ": pre-read "
 556                                 "failed!\n", 0, 0, 0 );
 557                         if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
 558                                 /* FIXME: is it correct to abort
 559                                  * operation if control fails? */
 560                                 goto return_results;
 561                         }
 562                 }
 563         }
 564
 565         /* nested transaction */
 566         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2, bdb->bi_db_opflags );
 567         rs->sr_text = NULL;
 568         if( rs->sr_err != 0 ) {
 569                 Debug( LDAP_DEBUG_TRACE,
 570                         LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: " "%s (%d)\n",
 571                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 572                 rs->sr_err = LDAP_OTHER;
 573                 rs->sr_text = "internal error";
 574                 goto return_results;
 575         }
 576         /* Modify the entry */
 577         dummy = *e;
 578         rs->sr_err = bdb_modify_internal( op, lt2, op->orm_modlist,
 579                 &dummy, &rs->sr_text, textbuf, textlen );
 580
 581         if( rs->sr_err != LDAP_SUCCESS ) {
 582                 Debug( LDAP_DEBUG_TRACE,
 583                         LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
 584                         rs->sr_err, 0, 0 );
 585                 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
 586                         rs->sr_err = opinfo.boi_err;
 587                 }
 588                 /* Only free attrs if they were dup'd.  */
 589                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 590                 switch( rs->sr_err ) {
 591                 case DB_LOCK_DEADLOCK:
 592                 case DB_LOCK_NOTGRANTED:
 593                         goto retry;
 594                 }
 595                 goto return_results;
 596         }
 597
 598         /* change the entry itself */
 599         rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
 600         if ( rs->sr_err != 0 ) {
 601                 Debug( LDAP_DEBUG_TRACE,
 602                         LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n",
 603                         rs->sr_err, 0, 0 );
 604                 switch( rs->sr_err ) {
 605                 case DB_LOCK_DEADLOCK:
 606                 case DB_LOCK_NOTGRANTED:
 607                         goto retry;
 608                 }
 609                 rs->sr_text = "entry update failed";
 610                 goto return_results;
 611         }
 612
 613         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 614                 rs->sr_err = LDAP_OTHER;
 615                 rs->sr_text = "txn_commit(2) failed";
 616                 goto return_results;
 617         }
 618
 619         if( op->o_postread ) {
 620                 if( postread_ctrl == NULL ) {
 621                         postread_ctrl = &ctrls[num_ctrls++];
 622                         ctrls[num_ctrls] = NULL;
 623                 }
 624                 if( slap_read_controls( op, rs, &dummy,
 625                         &slap_post_read_bv, postread_ctrl ) )
 626                 {
 627                         Debug( LDAP_DEBUG_TRACE,
 628                                 "<=- " LDAP_XSTRING(bdb_modify)
 629                                 ": post-read failed!\n", 0, 0, 0 );
 630                         if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
 631                                 /* FIXME: is it correct to abort
 632                                  * operation if control fails? */
 633                                 goto return_results;
 634                         }
 635                 }
 636         }
 637
 638         if( op->o_noop ) {
 639                 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
 640                         rs->sr_text = "txn_abort (no-op) failed";
 641                 } else {
 642                         rs->sr_err = LDAP_X_NO_OPERATION;
 643                         ltid = NULL;
 644                         /* Only free attrs if they were dup'd.  */
 645                         if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 646                         goto return_results;
 647                 }
 648         } else {
 649                 /* may have changed in bdb_modify_internal() */
 650                 e->e_ocflags = dummy.e_ocflags;
 651                 if ( fakeroot ) {
 652                         e->e_private = NULL;
 653                         entry_free( e );
 654                         e = NULL;
 655                         attrs_free( dummy.e_attrs );
 656
 657                 } else {
 658                         rc = bdb_cache_modify( bdb, e, dummy.e_attrs, locker, &lock );
 659                         switch( rc ) {
 660                         case DB_LOCK_DEADLOCK:
 661                         case DB_LOCK_NOTGRANTED:
 662                                 goto retry;
 663                         }
 664                 }
 665                 dummy.e_attrs = NULL;
 666
 667                 rs->sr_err = TXN_COMMIT( ltid, 0 );
 668         }
 669         ltid = NULL;
 670         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 671         opinfo.boi_oe.oe_key = NULL;
 672
 673         if( rs->sr_err != 0 ) {
 674                 Debug( LDAP_DEBUG_TRACE,
 675                         LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
 676                         op->o_noop ? "abort (no-op)" : "commit",
 677                         db_strerror(rs->sr_err), rs->sr_err );
 678                 rs->sr_err = LDAP_OTHER;
 679                 rs->sr_text = "commit failed";
 680
 681                 goto return_results;
 682         }
 683
 684         Debug( LDAP_DEBUG_TRACE,
 685                 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
 686                 op->o_noop ? " (no-op)" : "",
 687                 dummy.e_id, op->o_req_dn.bv_val );
 688
 689         rs->sr_err = LDAP_SUCCESS;
 690         rs->sr_text = NULL;
 691         if( num_ctrls ) rs->sr_ctrls = ctrls;
 692
 693 return_results:
 694         if( dummy.e_attrs ) {
 695                 attrs_free( dummy.e_attrs );
 696         }
 697         send_ldap_result( op, rs );
 698
 699         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
 700                 TXN_CHECKPOINT( bdb->bi_dbenv,
 701                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 702         }
 703
 704 done:
 705         slap_graduate_commit_csn( op );
 706
 707         if( ltid != NULL ) {
 708                 TXN_ABORT( ltid );
 709         }
 710         if ( opinfo.boi_oe.oe_key ) {
 711                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
 712         }
 713
 714         if( e != NULL ) {
 715                 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
 716         }
 717
 718         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 719                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 720                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 721         }
 722         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 723                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 724                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 725         }
 726
 727         rs->sr_text = NULL;
 728
 729         return rs->sr_err;
 730 }