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