git.sur5r.net Git - openldap/blob - servers/slapd/back-mdb/modify.c

   1 /* modify.c - mdb backend modify routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2017 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-mdb.h"
  24
  25 static struct berval scbva[] = {
  26         BER_BVC("glue"),
  27         BER_BVNULL
  28 };
  29
  30 static void
  31 mdb_modify_idxflags(
  32         Operation *op,
  33         AttributeDescription *desc,
  34         int got_delete,
  35         Attribute *newattrs,
  36         Attribute *oldattrs )
  37 {
  38         struct berval   ix_at;
  39         AttrInfo        *ai;
  40
  41         /* check if modified attribute was indexed
  42          * but not in case of NOOP... */
  43         ai = mdb_index_mask( op->o_bd, desc, &ix_at );
  44         if ( ai ) {
  45                 if ( got_delete ) {
  46                         Attribute       *ap;
  47                         struct berval   ix2;
  48
  49                         ap = attr_find( oldattrs, desc );
  50                         if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
  51
  52                         /* ITS#8678 FIXME
  53                          * If using 32bit hashes, or substring index, must account for
  54                          * possible index collisions. If no substring index, and using
  55                          * 64bit hashes, assume we don't need to check for collisions.
  56                          *
  57                          * In 2.5 use refcounts and avoid all of this mess.
  58                          */
  59                         if (!slap_hash64(-1) || (ai->ai_indexmask & SLAP_INDEX_SUBSTR)) {
  60                                 /* Find all other attrs that index to same slot */
  61                                 for ( ap = newattrs; ap; ap = ap->a_next ) {
  62                                         ai = mdb_index_mask( op->o_bd, ap->a_desc, &ix2 );
  63                                         if ( ai && ix2.bv_val == ix_at.bv_val )
  64                                                 ap->a_flags |= SLAP_ATTR_IXADD;
  65                                 }
  66                         }
  67
  68                 } else {
  69                         Attribute       *ap;
  70
  71                         ap = attr_find( newattrs, desc );
  72                         if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
  73                 }
  74         }
  75 }
  76
  77 int mdb_modify_internal(
  78         Operation *op,
  79         MDB_txn *tid,
  80         Modifications *modlist,
  81         Entry *e,
  82         const char **text,
  83         char *textbuf,
  84         size_t textlen )
  85 {
  86         struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
  87         int rc, err;
  88         Modification    *mod;
  89         Modifications   *ml;
  90         Attribute       *save_attrs;
  91         Attribute       *ap, *aold, *anew;
  92         int                     glue_attr_delete = 0;
  93         int                     softop, chkpresent;
  94         int                     got_delete;
  95         int                     a_flags;
  96         MDB_cursor      *mvc = NULL;
  97
  98         Debug( LDAP_DEBUG_TRACE, "mdb_modify_internal: 0x%08lx: %s\n",
  99                 e->e_id, e->e_dn, 0);
 100
 101         if ( !acl_check_modlist( op, e, modlist )) {
 102                 return LDAP_INSUFFICIENT_ACCESS;
 103         }
 104
 105         /* save_attrs will be disposed of by caller */
 106         save_attrs = e->e_attrs;
 107         e->e_attrs = attrs_dup( e->e_attrs );
 108
 109         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
 110                 int match;
 111                 mod = &ml->sml_mod;
 112                 switch( mod->sm_op ) {
 113                 case LDAP_MOD_ADD:
 114                 case LDAP_MOD_REPLACE:
 115                         if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
 116                                 value_match( &match, slap_schema.si_ad_structuralObjectClass,
 117                                         slap_schema.si_ad_structuralObjectClass->
 118                                                 ad_type->sat_equality,
 119                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 120                                         &mod->sm_values[0], &scbva[0], text );
 121                                 if ( !match ) glue_attr_delete = 1;
 122                         }
 123                 }
 124                 if ( glue_attr_delete )
 125                         break;
 126         }
 127
 128         if ( glue_attr_delete ) {
 129                 Attribute       **app = &e->e_attrs;
 130                 while ( *app != NULL ) {
 131                         if ( !is_at_operational( (*app)->a_desc->ad_type )) {
 132                                 Attribute *save = *app;
 133                                 *app = (*app)->a_next;
 134                                 attr_free( save );
 135                                 continue;
 136                         }
 137                         app = &(*app)->a_next;
 138                 }
 139         }
 140
 141         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
 142                 mod = &ml->sml_mod;
 143                 got_delete = 0;
 144
 145                 aold = attr_find( e->e_attrs, mod->sm_desc );
 146                 if (aold)
 147                         a_flags = aold->a_flags;
 148                 else
 149                         a_flags = 0;
 150
 151                 switch ( mod->sm_op ) {
 152                 case LDAP_MOD_ADD:
 153                         softop = 0;
 154                         chkpresent = 0;
 155                         Debug(LDAP_DEBUG_ARGS,
 156                                 "mdb_modify_internal: add %s\n",
 157                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 158
 159 do_add:
 160                         err = modify_add_values( e, mod, get_permissiveModify(op),
 161                                 text, textbuf, textlen );
 162
 163                         if( softop ) {
 164                                 mod->sm_op = SLAP_MOD_SOFTADD;
 165                                 if ( err == LDAP_TYPE_OR_VALUE_EXISTS )
 166                                         err = LDAP_SUCCESS;
 167                         }
 168                         if( chkpresent ) {
 169                                 mod->sm_op = SLAP_MOD_ADD_IF_NOT_PRESENT;
 170                         }
 171
 172                         if( err != LDAP_SUCCESS ) {
 173                                 Debug(LDAP_DEBUG_ARGS, "mdb_modify_internal: %d %s\n",
 174                                         err, *text, 0);
 175                         } else {
 176                                 if (!aold)
 177                                         anew = attr_find( e->e_attrs, mod->sm_desc );
 178                                 else
 179                                         anew = aold;
 180                                 /* check for big multivalued attrs */
 181                                 if ( anew->a_numvals > mdb->mi_multi_hi )
 182                                         anew->a_flags |= SLAP_ATTR_BIG_MULTI;
 183                                 if ( anew->a_flags & SLAP_ATTR_BIG_MULTI ) {
 184                                         if (!mvc) {
 185                                                 err = mdb_cursor_open( tid, mdb->mi_dbis[MDB_ID2VAL], &mvc );
 186                                                 if (err)
 187                                                         break;
 188                                         }
 189                                         /* if prev was set, just add new values */
 190                                         if (a_flags & SLAP_ATTR_BIG_MULTI ) {
 191                                                 anew = (Attribute *)mod;
 192                                                 /* Tweak nvals */
 193                                                 if (!anew->a_nvals)
 194                                                         anew->a_nvals = anew->a_vals;
 195                                         }
 196                                         err = mdb_mval_put(op, mvc, e->e_id, anew);
 197                                         if (a_flags & SLAP_ATTR_BIG_MULTI ) {
 198                                                 /* Undo nvals tweak */
 199                                                 if (anew->a_nvals == anew->a_vals)
 200                                                         anew->a_nvals = NULL;
 201                                         }
 202                                 }
 203                         }
 204                         break;
 205
 206                 case LDAP_MOD_DELETE:
 207                         if ( glue_attr_delete ) {
 208                                 err = LDAP_SUCCESS;
 209                                 break;
 210                         }
 211
 212                         softop = 0;
 213                         Debug(LDAP_DEBUG_ARGS,
 214                                 "mdb_modify_internal: delete %s\n",
 215                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 216 do_del:
 217                         err = modify_delete_values( e, mod, get_permissiveModify(op),
 218                                 text, textbuf, textlen );
 219
 220                         if (softop) {
 221                                 mod->sm_op = SLAP_MOD_SOFTDEL;
 222                                 if ( err == LDAP_NO_SUCH_ATTRIBUTE ) {
 223                                         err = LDAP_SUCCESS;
 224                                         softop = 2;
 225                                 }
 226                         }
 227
 228                         if( err != LDAP_SUCCESS ) {
 229                                 Debug(LDAP_DEBUG_ARGS, "mdb_modify_internal: %d %s\n",
 230                                         err, *text, 0);
 231                         } else {
 232                                 if (softop != 2)
 233                                         got_delete = 1;
 234                                 /* check for big multivalued attrs */
 235                                 if (a_flags & SLAP_ATTR_BIG_MULTI) {
 236                                         Attribute a_dummy;
 237                                         if (!mvc) {
 238                                                 err = mdb_cursor_open( tid, mdb->mi_dbis[MDB_ID2VAL], &mvc );
 239                                                 if (err)
 240                                                         break;
 241                                         }
 242                                         if ( mod->sm_numvals ) {
 243                                                 anew = attr_find( e->e_attrs, mod->sm_desc );
 244                                                 if ( anew ) {
 245                                                         if ( anew->a_numvals < mdb->mi_multi_lo ) {
 246                                                                 anew->a_flags ^= SLAP_ATTR_BIG_MULTI;
 247                                                                 anew = NULL;
 248                                                         } else {
 249                                                                 anew = (Attribute *)mod;
 250                                                         }
 251                                                 }
 252                                         } else {
 253                                                 anew = NULL;
 254                                         }
 255                                         if (!anew) {
 256                                         /* delete all values */
 257                                                 anew = &a_dummy;
 258                                                 anew->a_desc = mod->sm_desc;
 259                                                 anew->a_numvals = 0;
 260                                         }
 261                                         err = mdb_mval_del( op, mvc, e->e_id, anew );
 262                                 }
 263                         }
 264                         break;
 265
 266                 case LDAP_MOD_REPLACE:
 267                         Debug(LDAP_DEBUG_ARGS,
 268                                 "mdb_modify_internal: replace %s\n",
 269                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 270                         err = modify_replace_values( e, mod, get_permissiveModify(op),
 271                                 text, textbuf, textlen );
 272                         if( err != LDAP_SUCCESS ) {
 273                                 Debug(LDAP_DEBUG_ARGS, "mdb_modify_internal: %d %s\n",
 274                                         err, *text, 0);
 275                         } else {
 276                                 got_delete = 1;
 277                                 if (a_flags & SLAP_ATTR_BIG_MULTI) {
 278                                         Attribute a_dummy;
 279                                         if (!mvc) {
 280                                                 err = mdb_cursor_open( tid, mdb->mi_dbis[MDB_ID2VAL], &mvc );
 281                                                 if (err)
 282                                                         break;
 283                                         }
 284                                         /* delete all values */
 285                                         anew = &a_dummy;
 286                                         anew->a_desc = mod->sm_desc;
 287                                         anew->a_numvals = 0;
 288                                         err = mdb_mval_del( op, mvc, e->e_id, anew );
 289                                         if (err)
 290                                                 break;
 291                                 }
 292                                 anew = attr_find( e->e_attrs, mod->sm_desc );
 293                                 if (mod->sm_numvals >= mdb->mi_multi_lo) {
 294                                         anew->a_flags |= SLAP_ATTR_BIG_MULTI;
 295                                         if (!mvc) {
 296                                                 err = mdb_cursor_open( tid, mdb->mi_dbis[MDB_ID2VAL], &mvc );
 297                                                 if (err)
 298                                                         break;
 299                                         }
 300                                         err = mdb_mval_put(op, mvc, e->e_id, anew);
 301                                 } else if (anew) {
 302                                         /* revert back to normal attr */
 303                                         anew->a_flags &= ~SLAP_ATTR_BIG_MULTI;
 304                                 }
 305                         }
 306                         break;
 307
 308                 case LDAP_MOD_INCREMENT:
 309                         Debug(LDAP_DEBUG_ARGS,
 310                                 "mdb_modify_internal: increment %s\n",
 311                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 312                         err = modify_increment_values( e, mod, get_permissiveModify(op),
 313                                 text, textbuf, textlen );
 314                         if( err != LDAP_SUCCESS ) {
 315                                 Debug(LDAP_DEBUG_ARGS,
 316                                         "mdb_modify_internal: %d %s\n",
 317                                         err, *text, 0);
 318                         } else {
 319                                 got_delete = 1;
 320                         }
 321                         break;
 322
 323                 case SLAP_MOD_SOFTADD:
 324                         Debug(LDAP_DEBUG_ARGS,
 325                                 "mdb_modify_internal: softadd %s\n",
 326                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 327                         /* Avoid problems in index_add_mods()
 328                          * We need to add index if necessary.
 329                          */
 330                         mod->sm_op = LDAP_MOD_ADD;
 331                         softop = 1;
 332                         chkpresent = 0;
 333                         goto do_add;
 334
 335                 case SLAP_MOD_SOFTDEL:
 336                         Debug(LDAP_DEBUG_ARGS,
 337                                 "mdb_modify_internal: softdel %s\n",
 338                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 339                         /* Avoid problems in index_delete_mods()
 340                          * We need to add index if necessary.
 341                          */
 342                         mod->sm_op = LDAP_MOD_DELETE;
 343                         softop = 1;
 344                         goto do_del;
 345
 346                 case SLAP_MOD_ADD_IF_NOT_PRESENT:
 347                         if ( attr_find( e->e_attrs, mod->sm_desc ) != NULL ) {
 348                                 /* skip */
 349                                 err = LDAP_SUCCESS;
 350                                 break;
 351                         }
 352
 353                         Debug(LDAP_DEBUG_ARGS,
 354                                 "mdb_modify_internal: add_if_not_present %s\n",
 355                                 mod->sm_desc->ad_cname.bv_val, 0, 0);
 356                         /* Avoid problems in index_add_mods()
 357                          * We need to add index if necessary.
 358                          */
 359                         mod->sm_op = LDAP_MOD_ADD;
 360                         softop = 0;
 361                         chkpresent = 1;
 362                         goto do_add;
 363
 364                 default:
 365                         Debug(LDAP_DEBUG_ANY, "mdb_modify_internal: invalid op %d\n",
 366                                 mod->sm_op, 0, 0);
 367                         *text = "Invalid modify operation";
 368                         err = LDAP_OTHER;
 369                         Debug(LDAP_DEBUG_ARGS, "mdb_modify_internal: %d %s\n",
 370                                 err, *text, 0);
 371                 }
 372
 373                 if ( err != LDAP_SUCCESS ) {
 374                         attrs_free( e->e_attrs );
 375                         e->e_attrs = save_attrs;
 376                         /* unlock entry, delete from cache */
 377                         return err;
 378                 }
 379
 380                 /* If objectClass was modified, reset the flags */
 381                 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
 382                         e->e_ocflags = 0;
 383                 }
 384
 385                 if ( glue_attr_delete ) e->e_ocflags = 0;
 386
 387
 388                 /* check if modified attribute was indexed
 389                  * but not in case of NOOP... */
 390                 if ( !op->o_noop ) {
 391                         mdb_modify_idxflags( op, mod->sm_desc, got_delete, e->e_attrs, save_attrs );
 392                 }
 393         }
 394
 395         /* check that the entry still obeys the schema */
 396         ap = NULL;
 397         rc = entry_schema_check( op, e, save_attrs, get_relax(op), 0, &ap,
 398                 text, textbuf, textlen );
 399         if ( rc != LDAP_SUCCESS || op->o_noop ) {
 400                 attrs_free( e->e_attrs );
 401                 /* clear the indexing flags */
 402                 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
 403                         ap->a_flags &= ~(SLAP_ATTR_IXADD|SLAP_ATTR_IXDEL);
 404                 }
 405                 e->e_attrs = save_attrs;
 406
 407                 if ( rc != LDAP_SUCCESS ) {
 408                         Debug( LDAP_DEBUG_ANY,
 409                                 "entry failed schema check: %s\n",
 410                                 *text, 0, 0 );
 411                 }
 412
 413                 /* if NOOP then silently revert to saved attrs */
 414                 return rc;
 415         }
 416
 417         /* structuralObjectClass modified! */
 418         if ( ap ) {
 419                 assert( ap->a_desc == slap_schema.si_ad_structuralObjectClass );
 420                 if ( !op->o_noop ) {
 421                         mdb_modify_idxflags( op, slap_schema.si_ad_structuralObjectClass,
 422                                 1, e->e_attrs, save_attrs );
 423                 }
 424         }
 425
 426         /* update the indices of the modified attributes */
 427
 428         /* start with deleting the old index entries */
 429         for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
 430                 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
 431                         struct berval *vals;
 432                         Attribute *a2;
 433                         ap->a_flags &= ~SLAP_ATTR_IXDEL;
 434                         a2 = attr_find( e->e_attrs, ap->a_desc );
 435                         if ( a2 ) {
 436                                 /* need to detect which values were deleted */
 437                                 int i, j;
 438                                 /* let add know there were deletes */
 439                                 if ( a2->a_flags & SLAP_ATTR_IXADD )
 440                                         a2->a_flags |= SLAP_ATTR_IXDEL;
 441                                 vals = op->o_tmpalloc( (ap->a_numvals + 1) *
 442                                         sizeof(struct berval), op->o_tmpmemctx );
 443                                 j = 0;
 444                                 for ( i=0; i < ap->a_numvals; i++ ) {
 445                                         rc = attr_valfind( a2, SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 446                                                 &ap->a_nvals[i], NULL, op->o_tmpmemctx );
 447                                         /* Save deleted values */
 448                                         if ( rc == LDAP_NO_SUCH_ATTRIBUTE )
 449                                                 vals[j++] = ap->a_nvals[i];
 450                                 }
 451                                 BER_BVZERO(vals+j);
 452                         } else {
 453                                 /* attribute was completely deleted */
 454                                 vals = ap->a_nvals;
 455                         }
 456                         rc = 0;
 457                         if ( !BER_BVISNULL( vals )) {
 458                                 rc = mdb_index_values( op, tid, ap->a_desc,
 459                                         vals, e->e_id, SLAP_INDEX_DELETE_OP );
 460                                 if ( rc != LDAP_SUCCESS ) {
 461                                         Debug( LDAP_DEBUG_ANY,
 462                                                 "%s: attribute \"%s\" index delete failure\n",
 463                                                 op->o_log_prefix, ap->a_desc->ad_cname.bv_val, 0 );
 464                                         attrs_free( e->e_attrs );
 465                                         e->e_attrs = save_attrs;
 466                                 }
 467                         }
 468                         if ( vals != ap->a_nvals )
 469                                 op->o_tmpfree( vals, op->o_tmpmemctx );
 470                         if ( rc ) return rc;
 471                 }
 472         }
 473
 474         /* add the new index entries */
 475         for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
 476                 if (ap->a_flags & SLAP_ATTR_IXADD) {
 477                         ap->a_flags &= ~SLAP_ATTR_IXADD;
 478                         if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
 479                                 /* if any values were deleted, we must readd index
 480                                  * for all remaining values.
 481                                  */
 482                                 ap->a_flags &= ~SLAP_ATTR_IXDEL;
 483                                 rc = mdb_index_values( op, tid, ap->a_desc,
 484                                         ap->a_nvals,
 485                                         e->e_id, SLAP_INDEX_ADD_OP );
 486                         } else {
 487                                 int found = 0;
 488                                 /* if this was only an add, we only need to index
 489                                  * the added values.
 490                                  */
 491                                 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
 492                                         struct berval *vals;
 493                                         if ( ml->sml_desc != ap->a_desc || !ml->sml_numvals )
 494                                                 continue;
 495                                         found = 1;
 496                                         switch( ml->sml_op ) {
 497                                         case LDAP_MOD_ADD:
 498                                         case LDAP_MOD_REPLACE:
 499                                         case LDAP_MOD_INCREMENT:
 500                                         case SLAP_MOD_SOFTADD:
 501                                         case SLAP_MOD_ADD_IF_NOT_PRESENT:
 502                                                 if ( ml->sml_op == LDAP_MOD_INCREMENT )
 503                                                         vals = ap->a_nvals;
 504                                                 else if ( ml->sml_nvalues )
 505                                                         vals = ml->sml_nvalues;
 506                                                 else
 507                                                         vals = ml->sml_values;
 508                                                 rc = mdb_index_values( op, tid, ap->a_desc,
 509                                                         vals, e->e_id, SLAP_INDEX_ADD_OP );
 510                                                 break;
 511                                         }
 512                                         if ( rc )
 513                                                 break;
 514                                 }
 515                                 /* This attr was affected by a modify of a subtype, so
 516                                  * there was no direct match in the modlist. Just readd
 517                                  * all of its values.
 518                                  */
 519                                 if ( !found ) {
 520                                         rc = mdb_index_values( op, tid, ap->a_desc,
 521                                                 ap->a_nvals,
 522                                                 e->e_id, SLAP_INDEX_ADD_OP );
 523                                 }
 524                         }
 525                         if ( rc != LDAP_SUCCESS ) {
 526                                 Debug( LDAP_DEBUG_ANY,
 527                                        "%s: attribute \"%s\" index add failure\n",
 528                                         op->o_log_prefix, ap->a_desc->ad_cname.bv_val, 0 );
 529                                 attrs_free( e->e_attrs );
 530                                 e->e_attrs = save_attrs;
 531                                 return rc;
 532                         }
 533                 }
 534         }
 535
 536         return rc;
 537 }
 538
 539
 540 int
 541 mdb_modify( Operation *op, SlapReply *rs )
 542 {
 543         struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
 544         Entry           *e = NULL;
 545         int             manageDSAit = get_manageDSAit( op );
 546         char textbuf[SLAP_TEXT_BUFLEN];
 547         size_t textlen = sizeof textbuf;
 548         MDB_txn *txn = NULL;
 549         mdb_op_info opinfo = {{{ 0 }}}, *moi = &opinfo;
 550         Entry           dummy = {0};
 551
 552         LDAPControl **preread_ctrl = NULL;
 553         LDAPControl **postread_ctrl = NULL;
 554         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
 555         int num_ctrls = 0;
 556         int numads = mdb->mi_numads;
 557
 558         Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(mdb_modify) ": %s\n",
 559                 op->o_req_dn.bv_val, 0, 0 );
 560
 561 #ifdef LDAP_X_TXN
 562         if( op->o_txnSpec && txn_preop( op, rs ))
 563                 return rs->sr_err;
 564 #endif
 565
 566         ctrls[num_ctrls] = NULL;
 567
 568         /* begin transaction */
 569         rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
 570         rs->sr_text = NULL;
 571         if( rs->sr_err != 0 ) {
 572                 Debug( LDAP_DEBUG_TRACE,
 573                         LDAP_XSTRING(mdb_modify) ": txn_begin failed: "
 574                         "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
 575                 rs->sr_err = LDAP_OTHER;
 576                 rs->sr_text = "internal error";
 577                 goto return_results;
 578         }
 579         txn = moi->moi_txn;
 580
 581         /* Don't touch the opattrs, if this is a contextCSN update
 582          * initiated from updatedn */
 583         if ( !be_isupdate(op) || !op->orm_modlist || op->orm_modlist->sml_next ||
 584                  op->orm_modlist->sml_desc != slap_schema.si_ad_contextCSN ) {
 585
 586                 slap_mods_opattrs( op, &op->orm_modlist, 1 );
 587         }
 588
 589         /* get entry or ancestor */
 590         rs->sr_err = mdb_dn2entry( op, txn, NULL, &op->o_req_ndn, &e, NULL, 1 );
 591
 592         if ( rs->sr_err != 0 ) {
 593                 Debug( LDAP_DEBUG_TRACE,
 594                         LDAP_XSTRING(mdb_modify) ": dn2entry failed (%d)\n",
 595                         rs->sr_err, 0, 0 );
 596                 switch( rs->sr_err ) {
 597                 case MDB_NOTFOUND:
 598                         break;
 599                 case LDAP_BUSY:
 600                         rs->sr_text = "ldap server busy";
 601                         goto return_results;
 602                 default:
 603                         rs->sr_err = LDAP_OTHER;
 604                         rs->sr_text = "internal error";
 605                         goto return_results;
 606                 }
 607         }
 608
 609         /* acquire and lock entry */
 610         /* FIXME: dn2entry() should return non-glue entry */
 611         if (( rs->sr_err == MDB_NOTFOUND ) ||
 612                 ( !manageDSAit && e && is_entry_glue( e )))
 613         {
 614                 if ( e != NULL ) {
 615                         rs->sr_matched = ch_strdup( e->e_dn );
 616                         if ( is_entry_referral( e )) {
 617                                 BerVarray ref = get_entry_referrals( op, e );
 618                                 rs->sr_ref = referral_rewrite( ref, &e->e_name,
 619                                         &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 620                                 ber_bvarray_free( ref );
 621                         } else {
 622                                 rs->sr_ref = NULL;
 623                         }
 624                         mdb_entry_return( op, e );
 625                         e = NULL;
 626
 627                 } else {
 628                         rs->sr_ref = referral_rewrite( default_referral, NULL,
 629                                 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 630                 }
 631
 632                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 633                 rs->sr_err = LDAP_REFERRAL;
 634                 send_ldap_result( op, rs );
 635                 goto done;
 636         }
 637
 638         if ( !manageDSAit && is_entry_referral( e ) ) {
 639                 /* entry is a referral, don't allow modify */
 640                 rs->sr_ref = get_entry_referrals( op, e );
 641
 642                 Debug( LDAP_DEBUG_TRACE,
 643                         LDAP_XSTRING(mdb_modify) ": entry is referral\n",
 644                         0, 0, 0 );
 645
 646                 rs->sr_err = LDAP_REFERRAL;
 647                 rs->sr_matched = e->e_name.bv_val;
 648                 rs->sr_flags = REP_REF_MUSTBEFREED;
 649                 send_ldap_result( op, rs );
 650                 rs->sr_matched = NULL;
 651                 goto done;
 652         }
 653
 654         if ( get_assert( op ) &&
 655                 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
 656         {
 657                 rs->sr_err = LDAP_ASSERTION_FAILED;
 658                 goto return_results;
 659         }
 660
 661         if( op->o_preread ) {
 662                 if( preread_ctrl == NULL ) {
 663                         preread_ctrl = &ctrls[num_ctrls++];
 664                         ctrls[num_ctrls] = NULL;
 665                 }
 666                 if ( slap_read_controls( op, rs, e,
 667                         &slap_pre_read_bv, preread_ctrl ) )
 668                 {
 669                         Debug( LDAP_DEBUG_TRACE,
 670                                 "<=- " LDAP_XSTRING(mdb_modify) ": pre-read "
 671                                 "failed!\n", 0, 0, 0 );
 672                         if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
 673                                 /* FIXME: is it correct to abort
 674                                  * operation if control fails? */
 675                                 goto return_results;
 676                         }
 677                 }
 678         }
 679
 680         /* Modify the entry */
 681         dummy = *e;
 682         rs->sr_err = mdb_modify_internal( op, txn, op->orm_modlist,
 683                 &dummy, &rs->sr_text, textbuf, textlen );
 684
 685         if( rs->sr_err != LDAP_SUCCESS ) {
 686                 Debug( LDAP_DEBUG_TRACE,
 687                         LDAP_XSTRING(mdb_modify) ": modify failed (%d)\n",
 688                         rs->sr_err, 0, 0 );
 689                 /* Only free attrs if they were dup'd.  */
 690                 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 691                 goto return_results;
 692         }
 693
 694         /* change the entry itself */
 695         rs->sr_err = mdb_id2entry_update( op, txn, NULL, &dummy );
 696         if ( rs->sr_err != 0 ) {
 697                 Debug( LDAP_DEBUG_TRACE,
 698                         LDAP_XSTRING(mdb_modify) ": id2entry update failed " "(%d)\n",
 699                         rs->sr_err, 0, 0 );
 700                 if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ) {
 701                         rs->sr_text = "entry too big";
 702                 } else {
 703                         rs->sr_err = LDAP_OTHER;
 704                         rs->sr_text = "entry update failed";
 705                 }
 706                 goto return_results;
 707         }
 708
 709         if( op->o_postread ) {
 710                 if( postread_ctrl == NULL ) {
 711                         postread_ctrl = &ctrls[num_ctrls++];
 712                         ctrls[num_ctrls] = NULL;
 713                 }
 714                 if( slap_read_controls( op, rs, &dummy,
 715                         &slap_post_read_bv, postread_ctrl ) )
 716                 {
 717                         Debug( LDAP_DEBUG_TRACE,
 718                                 "<=- " LDAP_XSTRING(mdb_modify)
 719                                 ": post-read failed!\n", 0, 0, 0 );
 720                         if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
 721                                 /* FIXME: is it correct to abort
 722                                  * operation if control fails? */
 723                                 goto return_results;
 724                         }
 725                 }
 726         }
 727
 728         /* Only free attrs if they were dup'd.  */
 729         if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
 730         if( moi == &opinfo ) {
 731                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
 732                 opinfo.moi_oe.oe_key = NULL;
 733                 if( op->o_noop ) {
 734                         mdb->mi_numads = numads;
 735                         mdb_txn_abort( txn );
 736                         rs->sr_err = LDAP_X_NO_OPERATION;
 737                         txn = NULL;
 738                         goto return_results;
 739                 } else {
 740                         rs->sr_err = mdb_txn_commit( txn );
 741                         if ( rs->sr_err )
 742                                 mdb->mi_numads = numads;
 743                         txn = NULL;
 744                 }
 745         }
 746
 747         if( rs->sr_err != 0 ) {
 748                 Debug( LDAP_DEBUG_ANY,
 749                         LDAP_XSTRING(mdb_modify) ": txn_%s failed: %s (%d)\n",
 750                         op->o_noop ? "abort (no-op)" : "commit",
 751                         mdb_strerror(rs->sr_err), rs->sr_err );
 752                 rs->sr_err = LDAP_OTHER;
 753                 rs->sr_text = "commit failed";
 754
 755                 goto return_results;
 756         }
 757
 758         Debug( LDAP_DEBUG_TRACE,
 759                 LDAP_XSTRING(mdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
 760                 op->o_noop ? " (no-op)" : "",
 761                 dummy.e_id, op->o_req_dn.bv_val );
 762
 763         rs->sr_err = LDAP_SUCCESS;
 764         rs->sr_text = NULL;
 765         if( num_ctrls ) rs->sr_ctrls = ctrls;
 766
 767 return_results:
 768         if( dummy.e_attrs ) {
 769                 attrs_free( dummy.e_attrs );
 770         }
 771         send_ldap_result( op, rs );
 772
 773 #if 0
 774         if( rs->sr_err == LDAP_SUCCESS && mdb->bi_txn_cp_kbyte ) {
 775                 TXN_CHECKPOINT( mdb->bi_dbenv,
 776                         mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );
 777         }
 778 #endif
 779
 780 done:
 781         slap_graduate_commit_csn( op );
 782
 783         if( moi == &opinfo ) {
 784                 if( txn != NULL ) {
 785                         mdb->mi_numads = numads;
 786                         mdb_txn_abort( txn );
 787                 }
 788                 if ( opinfo.moi_oe.oe_key ) {
 789                         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
 790                 }
 791         } else {
 792                 moi->moi_ref--;
 793         }
 794
 795         if( e != NULL ) {
 796                 mdb_entry_return( op, e );
 797         }
 798
 799         if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
 800                 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 801                 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
 802         }
 803         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 804                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 805                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 806         }
 807
 808         rs->sr_text = NULL;
 809
 810         return rs->sr_err;
 811 }