git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/add.c

   1 /* add.c - ldap BerkeleyDB back-end add routine */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11 #include <ac/string.h>
  12
  13 #include "back-bdb.h"
  14 #include "external.h"
  15
  16 int
  17 bdb_add(
  18         BackendDB       *be,
  19         Connection      *conn,
  20         Operation       *op,
  21         Entry   *e )
  22 {
  23         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  24         struct berval   pdn;
  25         Entry           *p = NULL;
  26         int             rc;
  27         const char      *text;
  28         char textbuf[SLAP_TEXT_BUFLEN];
  29         size_t textlen = sizeof textbuf;
  30         AttributeDescription *children = slap_schema.si_ad_children;
  31         AttributeDescription *entry = slap_schema.si_ad_entry;
  32         DB_TXN          *ltid = NULL;
  33         struct bdb_op_info opinfo;
  34 #ifdef BDB_SUBENTRIES
  35         int subentry;
  36 #endif
  37         u_int32_t       locker;
  38         DB_LOCK         lock;
  39 #if 0
  40         u_int32_t       lockid;
  41         DB_LOCK         lock;
  42 #endif
  43         int             noop = 0;
  44
  45 #ifdef LDAP_CLIENT_UPDATE
  46         Operation* ps_list;
  47 #endif
  48
  49 #ifdef NEW_LOGGING
  50         LDAP_LOG ( OPERATION, ARGS, "==> bdb_add: %s\n", e->e_dn, 0, 0 );
  51 #else
  52         Debug(LDAP_DEBUG_ARGS, "==> bdb_add: %s\n", e->e_dn, 0, 0);
  53 #endif
  54
  55         /* check entry's schema */
  56         rc = entry_schema_check( be, e, NULL, &text, textbuf, textlen );
  57         if ( rc != LDAP_SUCCESS ) {
  58 #ifdef NEW_LOGGING
  59         LDAP_LOG ( OPERATION, ERR,
  60                 "bdb_add: entry failed schema check: %s (%d)\n", text, rc, 0 );
  61 #else
  62                 Debug( LDAP_DEBUG_TRACE,
  63                         "bdb_add: entry failed schema check: %s (%d)\n",
  64                         text, rc, 0 );
  65 #endif
  66                 goto return_results;
  67         }
  68
  69 #ifdef BDB_SUBENTRIES
  70         subentry = is_entry_subentry( e );
  71 #endif
  72
  73         /*
  74          * acquire an ID outside of the operation transaction
  75          * to avoid serializing adds.
  76          */
  77         rc = bdb_next_id( be, NULL, &e->e_id );
  78         if( rc != 0 ) {
  79 #ifdef NEW_LOGGING
  80                 LDAP_LOG ( OPERATION, ERR,
  81                         "bdb_add: next_id failed (%d)\n", rc, 0, 0 );
  82 #else
  83                 Debug( LDAP_DEBUG_TRACE,
  84                         "bdb_add: next_id failed (%d)\n",
  85                         rc, 0, 0 );
  86 #endif
  87                 rc = LDAP_OTHER;
  88                 text = "internal error";
  89                 goto return_results;
  90         }
  91
  92         if( 0 ) {
  93 retry:  /* transaction retry */
  94                 if( p ) {
  95                         /* free parent and reader lock */
  96                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
  97                         p = NULL;
  98                 }
  99                 rc = TXN_ABORT( ltid );
 100                 ltid = NULL;
 101                 op->o_private = NULL;
 102                 if( rc != 0 ) {
 103                         rc = LDAP_OTHER;
 104                         text = "internal error";
 105                         goto return_results;
 106                 }
 107                 ldap_pvt_thread_yield();
 108         }
 109
 110         /* begin transaction */
 111         rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 112                 bdb->bi_db_opflags );
 113         text = NULL;
 114         if( rc != 0 ) {
 115 #ifdef NEW_LOGGING
 116                 LDAP_LOG ( OPERATION, ERR,
 117                         "bdb_add: txn_begin failed: %s (%d)\n", db_strerror(rc), rc, 0 );
 118 #else
 119                 Debug( LDAP_DEBUG_TRACE,
 120                         "bdb_add: txn_begin failed: %s (%d)\n",
 121                         db_strerror(rc), rc, 0 );
 122 #endif
 123                 rc = LDAP_OTHER;
 124                 text = "internal error";
 125                 goto return_results;
 126         }
 127
 128         locker = TXN_ID ( ltid );
 129 #if 0
 130         lockid = TXN_ID( ltid );
 131 #endif
 132
 133         opinfo.boi_bdb = be;
 134         opinfo.boi_txn = ltid;
 135         opinfo.boi_err = 0;
 136         op->o_private = &opinfo;
 137
 138         /*
 139          * Get the parent dn and see if the corresponding entry exists.
 140          * If the parent does not exist, only allow the "root" user to
 141          * add the entry.
 142          */
 143         if ( be_issuffix( be, &e->e_nname ) ) {
 144                 pdn = slap_empty_bv;
 145         } else {
 146                 dnParent( &e->e_nname, &pdn );
 147         }
 148
 149         if( pdn.bv_len != 0 ) {
 150                 Entry *matched = NULL;
 151
 152 #if 0
 153                 if ( ltid ) {
 154                         DBT obj;
 155                         obj.data = pdn.bv_val-1;
 156                         obj.size = pdn.bv_len+1;
 157                         rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
 158                                 DB_LOCK_WRITE, &lock);
 159                 }
 160 #endif
 161
 162                 /* get parent */
 163                 rc = bdb_dn2entry_r( be, ltid, &pdn, &p, &matched, 0, locker, &lock );
 164
 165                 switch( rc ) {
 166                 case 0:
 167                 case DB_NOTFOUND:
 168                         break;
 169                 case DB_LOCK_DEADLOCK:
 170                 case DB_LOCK_NOTGRANTED:
 171                         goto retry;
 172                 case LDAP_BUSY:
 173                         text = "ldap server busy";
 174                         goto return_results;
 175                 default:
 176                         rc = LDAP_OTHER;
 177                         text = "internal error";
 178                         goto return_results;
 179                 }
 180
 181                 if ( p == NULL ) {
 182                         char *matched_dn = NULL;
 183                         BerVarray refs;
 184
 185                         if ( matched != NULL ) {
 186                                 matched_dn = ch_strdup( matched->e_dn );
 187                                 refs = is_entry_referral( matched )
 188                                         ? get_entry_referrals( be, conn, op, matched )
 189                                         : NULL;
 190                                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, matched );
 191                                 matched = NULL;
 192
 193                         } else {
 194                                 refs = referral_rewrite( default_referral,
 195                                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 196                         }
 197
 198 #ifdef NEW_LOGGING
 199                         LDAP_LOG ( OPERATION, DETAIL1,
 200                                 "bdb_add: parent does not exist\n", 0, 0, 0 );
 201 #else
 202                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent does not exist\n",
 203                                 0, 0, 0 );
 204 #endif
 205
 206                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 207                                 matched_dn, NULL, refs, NULL );
 208
 209                         ber_bvarray_free( refs );
 210                         ch_free( matched_dn );
 211
 212                         goto done;
 213                 }
 214
 215                 rc = access_allowed( be, conn, op, p,
 216                         children, NULL, ACL_WRITE, NULL );
 217
 218                 switch( opinfo.boi_err ) {
 219                 case DB_LOCK_DEADLOCK:
 220                 case DB_LOCK_NOTGRANTED:
 221                         goto retry;
 222                 }
 223
 224                 if ( ! rc ) {
 225 #ifdef NEW_LOGGING
 226                         LDAP_LOG ( OPERATION, DETAIL1,
 227                                 "bdb_add: no write access to parent\n", 0, 0, 0 );
 228 #else
 229                         Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to parent\n",
 230                                 0, 0, 0 );
 231 #endif
 232                         rc = LDAP_INSUFFICIENT_ACCESS;
 233                         text = "no write access to parent";
 234                         goto return_results;;
 235                 }
 236
 237 #ifdef BDB_SUBENTRIES
 238                 if ( is_entry_subentry( p ) ) {
 239                         /* parent is a subentry, don't allow add */
 240 #ifdef NEW_LOGGING
 241                         LDAP_LOG ( OPERATION, DETAIL1,
 242                                 "bdb_add: parent is subentry\n", 0, 0, 0 );
 243 #else
 244                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 245                                 0, 0, 0 );
 246 #endif
 247                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 248                         text = "parent is a subentry";
 249                         goto return_results;;
 250                 }
 251 #endif
 252 #ifdef BDB_ALIASES
 253                 if ( is_entry_alias( p ) ) {
 254                         /* parent is an alias, don't allow add */
 255 #ifdef NEW_LOGGING
 256                         LDAP_LOG ( OPERATION, DETAIL1,
 257                                 "bdb_add: parent is alias\n", 0, 0, 0 );
 258 #else
 259                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is alias\n",
 260                                 0, 0, 0 );
 261 #endif
 262                         rc = LDAP_ALIAS_PROBLEM;
 263                         text = "parent is an alias";
 264                         goto return_results;;
 265                 }
 266 #endif
 267
 268                 if ( is_entry_referral( p ) ) {
 269                         /* parent is a referral, don't allow add */
 270                         char *matched_dn = p->e_dn;
 271                         BerVarray refs = get_entry_referrals( be, conn, op, p );
 272
 273 #ifdef NEW_LOGGING
 274                         LDAP_LOG ( OPERATION, DETAIL1,
 275                                 "bdb_add: parent is referral\n", 0, 0, 0 );
 276 #else
 277                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is referral\n",
 278                                 0, 0, 0 );
 279 #endif
 280
 281                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 282                                 matched_dn, NULL, refs, NULL );
 283
 284                         ber_bvarray_free( refs );
 285                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 286                         p = NULL;
 287                         goto done;
 288                 }
 289
 290 #ifdef BDB_SUBENTRIES
 291                 if ( subentry ) {
 292                         /* FIXME: */
 293                         /* parent must be an administrative point of the required kind */
 294                 }
 295 #endif
 296
 297                 /* free parent and reader lock */
 298                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 299                 p = NULL;
 300
 301         } else {
 302                 /*
 303                  * no parent!
 304                  *      must be adding entry at suffix or with parent ""
 305                  */
 306                 if ( !be_isroot( be, &op->o_ndn )) {
 307                         if ( be_issuffix( be, (struct berval *)&slap_empty_bv )
 308                                 || be_isupdate( be, &op->o_ndn ) )
 309                         {
 310                                 p = (Entry *)&slap_entry_root;
 311
 312                                 /* check parent for "children" acl */
 313                                 rc = access_allowed( be, conn, op, p,
 314                                         children, NULL, ACL_WRITE, NULL );
 315
 316                                 p = NULL;
 317
 318                                 switch( opinfo.boi_err ) {
 319                                 case DB_LOCK_DEADLOCK:
 320                                 case DB_LOCK_NOTGRANTED:
 321                                         goto retry;
 322                                 }
 323
 324                                 if ( ! rc ) {
 325 #ifdef NEW_LOGGING
 326                                         LDAP_LOG ( OPERATION, DETAIL1,
 327                                                 "bdb_add: no write access to parent\n", 0, 0, 0 );
 328 #else
 329                                         Debug( LDAP_DEBUG_TRACE,
 330                                                 "bdb_add: no write access to parent\n",
 331                                                 0, 0, 0 );
 332 #endif
 333                                         rc = LDAP_INSUFFICIENT_ACCESS;
 334                                         text = "no write access to parent";
 335                                         goto return_results;;
 336                                 }
 337
 338                         } else {
 339 #ifdef NEW_LOGGING
 340                                 LDAP_LOG ( OPERATION, DETAIL1, "bdb_add: %s denied\n",
 341                                         pdn.bv_len == 0 ? "suffix" : "entry at root", 0, 0 );
 342 #else
 343                                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s denied\n",
 344                                         pdn.bv_len == 0 ? "suffix" : "entry at root",
 345                                         0, 0 );
 346 #endif
 347                                 rc = LDAP_INSUFFICIENT_ACCESS;
 348                                 goto return_results;
 349                         }
 350                 }
 351
 352 #ifdef BDB_SUBENTRIES
 353                 if( subentry ) {
 354 #ifdef NEW_LOGGING
 355                         LDAP_LOG ( OPERATION, DETAIL1,
 356                                 "bdb_add: no parent, cannot add subentry\n", 0, 0, 0 );
 357 #else
 358                         Debug( LDAP_DEBUG_TRACE,
 359                                 "bdb_add: no parent, cannot add subentry\n",
 360                                 0, 0, 0 );
 361 #endif
 362                         rc = LDAP_INSUFFICIENT_ACCESS;
 363                         text = "no parent, cannot add subentry";
 364                         goto return_results;;
 365                 }
 366 #endif
 367 #if 0
 368                 if ( ltid ) {
 369                         DBT obj;
 370                         obj.data = ",";
 371                         obj.size = 1;
 372                         rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
 373                                 DB_LOCK_WRITE, &lock);
 374                 }
 375 #endif
 376         }
 377
 378         rc = access_allowed( be, conn, op, e,
 379                 entry, NULL, ACL_WRITE, NULL );
 380
 381         switch( opinfo.boi_err ) {
 382         case DB_LOCK_DEADLOCK:
 383         case DB_LOCK_NOTGRANTED:
 384                 goto retry;
 385         }
 386
 387         if ( ! rc ) {
 388 #ifdef NEW_LOGGING
 389                 LDAP_LOG ( OPERATION, DETAIL1,
 390                         "bdb_add: no write access to entry\n", 0, 0, 0 );
 391 #else
 392                 Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to entry\n",
 393                         0, 0, 0 );
 394 #endif
 395                 rc = LDAP_INSUFFICIENT_ACCESS;
 396                 text = "no write access to entry";
 397                 goto return_results;;
 398         }
 399
 400         /* dn2id index */
 401         rc = bdb_dn2id_add( be, ltid, &pdn, e );
 402         if ( rc != 0 ) {
 403 #ifdef NEW_LOGGING
 404                 LDAP_LOG ( OPERATION, ERR,
 405                         "bdb_add: dn2id_add failed: %s (%d)\n", db_strerror(rc), rc, 0 );
 406 #else
 407                 Debug( LDAP_DEBUG_TRACE, "bdb_add: dn2id_add failed: %s (%d)\n",
 408                         db_strerror(rc), rc, 0 );
 409 #endif
 410
 411                 switch( rc ) {
 412                 case DB_LOCK_DEADLOCK:
 413                 case DB_LOCK_NOTGRANTED:
 414                         goto retry;
 415                 case DB_KEYEXIST:
 416                         rc = LDAP_ALREADY_EXISTS;
 417                         break;
 418                 default:
 419                         rc = LDAP_OTHER;
 420                 }
 421                 goto return_results;
 422         }
 423
 424         /* id2entry index */
 425         rc = bdb_id2entry_add( be, ltid, e );
 426         if ( rc != 0 ) {
 427 #ifdef NEW_LOGGING
 428                 LDAP_LOG ( OPERATION, ERR, "bdb_add: id2entry_add failed\n", 0, 0, 0 );
 429 #else
 430                 Debug( LDAP_DEBUG_TRACE, "bdb_add: id2entry_add failed\n",
 431                         0, 0, 0 );
 432 #endif
 433                 switch( rc ) {
 434                 case DB_LOCK_DEADLOCK:
 435                 case DB_LOCK_NOTGRANTED:
 436                         goto retry;
 437                 default:
 438                         rc = LDAP_OTHER;
 439                 }
 440                 text = "entry store failed";
 441                 goto return_results;
 442         }
 443
 444         /* attribute indexes */
 445         rc = bdb_index_entry_add( be, ltid, e, e->e_attrs );
 446         if ( rc != LDAP_SUCCESS ) {
 447 #ifdef NEW_LOGGING
 448                 LDAP_LOG ( OPERATION, ERR,
 449                         "bdb_add: index_entry_add failed\n", 0, 0, 0 );
 450 #else
 451                 Debug( LDAP_DEBUG_TRACE, "bdb_add: index_entry_add failed\n",
 452                         0, 0, 0 );
 453 #endif
 454                 switch( rc ) {
 455                 case DB_LOCK_DEADLOCK:
 456                 case DB_LOCK_NOTGRANTED:
 457                         goto retry;
 458                 default:
 459                         rc = LDAP_OTHER;
 460                 }
 461                 text = "index generation failed";
 462                 goto return_results;
 463         }
 464
 465
 466         if( op->o_noop ) {
 467                 if (( rc=TXN_ABORT( ltid )) != 0 ) {
 468                         text = "txn_abort (no-op) failed";
 469                 } else {
 470                         noop = 1;
 471                         rc = LDAP_SUCCESS;
 472                 }
 473
 474         } else {
 475                 char gid[DB_XIDDATASIZE];
 476
 477                 snprintf( gid, sizeof( gid ), "%s-%08lx-%08lx",
 478                         bdb_uuid.bv_val, (long) op->o_connid, (long) op->o_opid );
 479
 480                 if (( rc=TXN_PREPARE( ltid, gid )) != 0 ) {
 481                         text = "txn_prepare failed";
 482
 483                 } else {
 484                         int ret = bdb_cache_add_entry_rw(bdb->bi_dbenv,
 485                                         &bdb->bi_cache, e, CACHE_WRITE_LOCK,
 486                                         locker, &lock);
 487 #if 0
 488                         if ( bdb_cache_add_entry_rw(&bdb->bi_cache,
 489                                 e, CACHE_WRITE_LOCK) != 0 )
 490 #endif
 491                         switch ( ret ) {
 492                         case 0:
 493                                 break;
 494                         case DB_LOCK_DEADLOCK:
 495                         case DB_LOCK_NOTGRANTED:
 496                                 goto retry;
 497                         default:
 498                                 ret = LDAP_OTHER;
 499                         }
 500
 501                         if ( ret ) {
 502                                 if(( rc=TXN_ABORT( ltid )) != 0 ) {
 503                                         text = "cache add & txn_abort failed";
 504                                 } else {
 505                                         rc = LDAP_OTHER;
 506                                         text = "cache add failed";
 507                                 }
 508                         } else {
 509                                 if(( rc=TXN_COMMIT( ltid, 0 )) != 0 ) {
 510                                         text = "txn_commit failed";
 511                                 } else {
 512                                         rc = LDAP_SUCCESS;
 513                                 }
 514                         }
 515                 }
 516         }
 517
 518         ltid = NULL;
 519         op->o_private = NULL;
 520
 521         if (rc == LDAP_SUCCESS) {
 522 #ifdef NEW_LOGGING
 523                 LDAP_LOG ( OPERATION, RESULTS,
 524                         "bdb_add: added%s id=%08lx dn=\"%s\"\n",
 525                         op->o_noop ? " (no-op)" : "", e->e_id, e->e_dn );
 526 #else
 527                 Debug(LDAP_DEBUG_TRACE, "bdb_add: added%s id=%08lx dn=\"%s\"\n",
 528                         op->o_noop ? " (no-op)" : "", e->e_id, e->e_dn );
 529 #endif
 530                 text = NULL;
 531                 if ( !noop ) {
 532                         bdb_cache_entry_commit( e );
 533                 }
 534         }
 535         else {
 536 #ifdef NEW_LOGGING
 537                 LDAP_LOG ( OPERATION, ERR,
 538                         "bdb_add: %s : %s (%d)\n",  text, db_strerror(rc), rc );
 539 #else
 540                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s : %s (%d)\n",
 541                         text, db_strerror(rc), rc );
 542 #endif
 543                 rc = LDAP_OTHER;
 544         }
 545
 546 return_results:
 547         send_ldap_result( conn, op, rc,
 548                 NULL, text, NULL, NULL );
 549
 550 #ifdef LDAP_CLIENT_UPDATE
 551         if ( rc == LDAP_SUCCESS && !noop ) {
 552                 LDAP_LIST_FOREACH ( ps_list, &bdb->psearch_list, link ) {
 553                         bdb_psearch( be, conn, op, ps_list, e, LCUP_PSEARCH_BY_ADD );
 554                 }
 555         }
 556 #endif /* LDAP_CLIENT_UPDATE */
 557
 558         if( rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 559                 ldap_pvt_thread_yield();
 560                 TXN_CHECKPOINT( bdb->bi_dbenv,
 561                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 562         }
 563
 564 done:
 565
 566         if( ltid != NULL ) {
 567                 TXN_ABORT( ltid );
 568                 op->o_private = NULL;
 569         }
 570
 571         return ( ( rc == LDAP_SUCCESS ) ? noop : rc );
 572 }
 573