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