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 (( "add", LDAP_LEVEL_ARGS, "==> bdb_add: %s\n", e->e_dn ));
  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 (( "add", LDAP_LEVEL_ERR, "bdb_add: entry failed schema check: %s (%d)\n", text, rc ));
  54 #else
  55                 Debug( LDAP_DEBUG_TRACE,
  56                         "bdb_add: entry failed schema check: %s (%d)\n",
  57                         text, rc, 0 );
  58 #endif
  59                 goto return_results;
  60         }
  61
  62 #ifdef BDB_SUBENTRIES
  63         subentry = is_entry_subentry( e );
  64 #endif
  65
  66         /*
  67          * acquire an ID outside of the operation transaction
  68          * to avoid serializing adds.
  69          */
  70         rc = bdb_next_id( be, NULL, &e->e_id );
  71         if( rc != 0 ) {
  72 #ifdef NEW_LOGGING
  73                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: next_id failed (%d)\n", rc ));
  74 #else
  75                 Debug( LDAP_DEBUG_TRACE,
  76                         "bdb_add: next_id failed (%d)\n",
  77                         rc, 0, 0 );
  78 #endif
  79                 rc = LDAP_OTHER;
  80                 text = "internal error";
  81                 goto return_results;
  82         }
  83
  84         if( 0 ) {
  85 retry:  /* transaction retry */
  86                 rc = TXN_ABORT( ltid );
  87                 ltid = NULL;
  88                 op->o_private = NULL;
  89                 if( rc != 0 ) {
  90                         rc = LDAP_OTHER;
  91                         text = "internal error";
  92                         goto return_results;
  93                 }
  94                 ldap_pvt_thread_yield();
  95         }
  96
  97         /* begin transaction */
  98         rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
  99                 bdb->bi_db_opflags );
 100         text = NULL;
 101         if( rc != 0 ) {
 102 #ifdef NEW_LOGGING
 103                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: txn_begin failed: %s (%d)\n", db_strerror(rc), rc ));
 104 #else
 105                 Debug( LDAP_DEBUG_TRACE,
 106                         "bdb_add: txn_begin failed: %s (%d)\n",
 107                         db_strerror(rc), rc, 0 );
 108 #endif
 109                 rc = LDAP_OTHER;
 110                 text = "internal error";
 111                 goto return_results;
 112         }
 113
 114         locker = TXN_ID ( ltid );
 115 #if 0
 116         lockid = TXN_ID( ltid );
 117 #endif
 118
 119         opinfo.boi_bdb = be;
 120         opinfo.boi_txn = ltid;
 121         opinfo.boi_err = 0;
 122         op->o_private = &opinfo;
 123
 124         /*
 125          * Get the parent dn and see if the corresponding entry exists.
 126          * If the parent does not exist, only allow the "root" user to
 127          * add the entry.
 128          */
 129         if ( be_issuffix( be, &e->e_nname ) ) {
 130                 pdn = slap_empty_bv;
 131         } else {
 132                 dnParent( &e->e_nname, &pdn );
 133         }
 134
 135         if( pdn.bv_len != 0 ) {
 136                 Entry *matched = NULL;
 137
 138 #if 0
 139                 if ( ltid ) {
 140                         DBT obj;
 141                         obj.data = pdn.bv_val-1;
 142                         obj.size = pdn.bv_len+1;
 143                         rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
 144                                 DB_LOCK_WRITE, &lock);
 145                 }
 146 #endif
 147
 148                 /* get parent */
 149                 rc = bdb_dn2entry_r( be, ltid, &pdn, &p, &matched, 0, locker, &lock );
 150
 151                 switch( rc ) {
 152                 case 0:
 153                 case DB_NOTFOUND:
 154                         break;
 155                 case DB_LOCK_DEADLOCK:
 156                 case DB_LOCK_NOTGRANTED:
 157                         goto retry;
 158                 case LDAP_BUSY:
 159                         text = "ldap server busy";
 160                         goto return_results;
 161                 default:
 162                         rc = LDAP_OTHER;
 163                         text = "internal error";
 164                         goto return_results;
 165                 }
 166
 167                 if ( p == NULL ) {
 168                         char *matched_dn = NULL;
 169                         BerVarray refs;
 170
 171                         if ( matched != NULL ) {
 172                                 matched_dn = ch_strdup( matched->e_dn );
 173                                 refs = is_entry_referral( matched )
 174                                         ? get_entry_referrals( be, conn, op, matched )
 175                                         : NULL;
 176                                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, matched );
 177                                 matched = NULL;
 178
 179                         } else {
 180                                 refs = referral_rewrite( default_referral,
 181                                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 182                         }
 183
 184 #ifdef NEW_LOGGING
 185                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent does not exist\n" ));
 186 #else
 187                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent does not exist\n",
 188                                 0, 0, 0 );
 189 #endif
 190
 191                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 192                                 matched_dn, NULL, refs, NULL );
 193
 194                         ber_bvarray_free( refs );
 195                         ch_free( matched_dn );
 196
 197                         goto done;
 198                 }
 199
 200                 rc = access_allowed( be, conn, op, p,
 201                         children, NULL, ACL_WRITE, NULL );
 202
 203                 switch( opinfo.boi_err ) {
 204                 case DB_LOCK_DEADLOCK:
 205                 case DB_LOCK_NOTGRANTED:
 206                         /* free parent and reader lock */
 207                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 208                         p = NULL;
 209                         goto retry;
 210                 }
 211
 212                 if ( ! rc ) {
 213 #ifdef NEW_LOGGING
 214                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no write access to parent\n" ));
 215 #else
 216                         Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to parent\n",
 217                                 0, 0, 0 );
 218 #endif
 219                         rc = LDAP_INSUFFICIENT_ACCESS;
 220                         text = "no write access to parent";
 221                         goto return_results;;
 222                 }
 223
 224 #ifdef BDB_SUBENTRIES
 225                 if ( is_entry_subentry( p ) ) {
 226                         /* parent is a subentry, don't allow add */
 227 #ifdef NEW_LOGGING
 228                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is subentry\n" ));
 229 #else
 230                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 231                                 0, 0, 0 );
 232 #endif
 233                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 234                         text = "parent is a subentry";
 235                         goto return_results;;
 236                 }
 237 #endif
 238 #ifdef BDB_ALIASES
 239                 if ( is_entry_alias( p ) ) {
 240                         /* parent is an alias, don't allow add */
 241 #ifdef NEW_LOGGING
 242                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is alias\n" ));
 243 #else
 244                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is alias\n",
 245                                 0, 0, 0 );
 246 #endif
 247                         rc = LDAP_ALIAS_PROBLEM;
 248                         text = "parent is an alias";
 249                         goto return_results;;
 250                 }
 251 #endif
 252
 253                 if ( is_entry_referral( p ) ) {
 254                         /* parent is a referral, don't allow add */
 255                         char *matched_dn = p->e_dn;
 256                         BerVarray refs = get_entry_referrals( be, conn, op, p );
 257
 258 #ifdef NEW_LOGGING
 259                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is referral\n" ));
 260 #else
 261                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is referral\n",
 262                                 0, 0, 0 );
 263 #endif
 264
 265                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 266                                 matched_dn, NULL, refs, NULL );
 267
 268                         ber_bvarray_free( refs );
 269                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 270                         p = NULL;
 271                         goto done;
 272                 }
 273
 274 #ifdef BDB_SUBENTRIES
 275                 if ( subentry ) {
 276                         /* FIXME: */
 277                         /* parent must be an administrative point of the required kind */
 278                 }
 279 #endif
 280
 281                 /* free parent and reader lock */
 282                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 283                 p = NULL;
 284
 285         } else {
 286                 /*
 287                  * no parent!
 288                  *      must be adding entry at suffix or with parent ""
 289                  */
 290                 if ( !be_isroot( be, &op->o_ndn )) {
 291                         if ( be_issuffix( be, (struct berval *)&slap_empty_bv )
 292                                 || be_isupdate( be, &op->o_ndn ) ) {
 293                                 p = (Entry *)&slap_entry_root;
 294
 295                                 /* check parent for "children" acl */
 296                                 rc = access_allowed( be, conn, op, p,
 297                                         children, NULL, ACL_WRITE, NULL );
 298                                 p = NULL;
 299
 300                                 switch( opinfo.boi_err ) {
 301                                 case DB_LOCK_DEADLOCK:
 302                                 case DB_LOCK_NOTGRANTED:
 303                                         goto retry;
 304                                 }
 305
 306                                 if ( ! rc ) {
 307 #ifdef NEW_LOGGING
 308                                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no write access to parent\n" ));
 309 #else
 310                                         Debug( LDAP_DEBUG_TRACE,
 311                                                 "bdb_add: no write access to parent\n",
 312                                                 0, 0, 0 );
 313 #endif
 314                                         rc = LDAP_INSUFFICIENT_ACCESS;
 315                                         text = "no write access to parent";
 316                                         goto return_results;;
 317                                 }
 318
 319                         } else {
 320 #ifdef NEW_LOGGING
 321                                 LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: %s denied\n", pdn.bv_len == 0 ? "suffix" : "entry at root" ));
 322 #else
 323                                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s denied\n",
 324                                         pdn.bv_len == 0 ? "suffix" : "entry at root",
 325                                         0, 0 );
 326 #endif
 327                                 rc = LDAP_INSUFFICIENT_ACCESS;
 328                                 goto return_results;
 329                         }
 330                 }
 331
 332 #ifdef BDB_SUBENTRIES
 333                 if( subentry ) {
 334 #ifdef NEW_LOGGING
 335                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no parent, cannot add subentry\n" ));
 336 #else
 337                         Debug( LDAP_DEBUG_TRACE,
 338                                 "bdb_add: no parent, cannot add subentry\n",
 339                                 0, 0, 0 );
 340 #endif
 341                         rc = LDAP_INSUFFICIENT_ACCESS;
 342                         text = "no parent, cannot add subentry";
 343                         goto return_results;;
 344                 }
 345 #endif
 346 #if 0
 347                 if ( ltid ) {
 348                         DBT obj;
 349                         obj.data = ",";
 350                         obj.size = 1;
 351                         rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
 352                                 DB_LOCK_WRITE, &lock);
 353                 }
 354 #endif
 355         }
 356
 357         /* dn2id index */
 358         rc = bdb_dn2id_add( be, ltid, &pdn, e );
 359         if ( rc != 0 ) {
 360 #ifdef NEW_LOGGING
 361                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: dn2id_add failed: %s (%d)\n", db_strerror(rc), rc ));
 362 #else
 363                 Debug( LDAP_DEBUG_TRACE, "bdb_add: dn2id_add failed: %s (%d)\n",
 364                         db_strerror(rc), rc, 0 );
 365 #endif
 366
 367                 switch( rc ) {
 368                 case DB_LOCK_DEADLOCK:
 369                 case DB_LOCK_NOTGRANTED:
 370                         goto retry;
 371                 case DB_KEYEXIST:
 372                         rc = LDAP_ALREADY_EXISTS;
 373                         break;
 374                 default:
 375                         rc = LDAP_OTHER;
 376                 }
 377                 goto return_results;
 378         }
 379
 380         /* id2entry index */
 381         rc = bdb_id2entry_add( be, ltid, e );
 382         if ( rc != 0 ) {
 383 #ifdef NEW_LOGGING
 384                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: id2entry_add failed\n" ));
 385 #else
 386                 Debug( LDAP_DEBUG_TRACE, "bdb_add: id2entry_add failed\n",
 387                         0, 0, 0 );
 388 #endif
 389                 switch( rc ) {
 390                 case DB_LOCK_DEADLOCK:
 391                 case DB_LOCK_NOTGRANTED:
 392                         goto retry;
 393                 default:
 394                         rc = LDAP_OTHER;
 395                 }
 396                 text = "entry store failed";
 397                 goto return_results;
 398         }
 399
 400         /* attribute indexes */
 401         rc = bdb_index_entry_add( be, ltid, e, e->e_attrs );
 402         if ( rc != LDAP_SUCCESS ) {
 403 #ifdef NEW_LOGGING
 404                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: index_entry_add failed\n" ));
 405 #else
 406                 Debug( LDAP_DEBUG_TRACE, "bdb_add: index_entry_add failed\n",
 407                         0, 0, 0 );
 408 #endif
 409                 switch( rc ) {
 410                 case DB_LOCK_DEADLOCK:
 411                 case DB_LOCK_NOTGRANTED:
 412                         goto retry;
 413                 default:
 414                         rc = LDAP_OTHER;
 415                 }
 416                 text = "index generation failed";
 417                 goto return_results;
 418         }
 419
 420         if( op->o_noop ) {
 421                 if (( rc=TXN_ABORT( ltid )) != 0 ) {
 422                         text = "txn_abort (no-op) failed";
 423                 } else {
 424                         rc = LDAP_SUCCESS;
 425                 }
 426
 427         } else {
 428                 char gid[DB_XIDDATASIZE];
 429
 430                 snprintf( gid, sizeof( gid ), "%s-%08lx-%08lx",
 431                         bdb_uuid.bv_val, (long) op->o_connid, (long) op->o_opid );
 432
 433                 if (( rc=TXN_PREPARE( ltid, gid )) != 0 ) {
 434                         text = "txn_prepare failed";
 435
 436                 } else {
 437                         ret = bdb_cache_add_entry_rw(bdb->bi_dbenv, &bdb->bi_cache, e, CACHE_WRITE_LOCK, locker, &lock);
 438 #if 0
 439                         if ( bdb_cache_add_entry_rw(&bdb->bi_cache,
 440                                 e, CACHE_WRITE_LOCK) != 0 )
 441 #endif
 442                         switch ( ret ) {
 443                         case 0:
 444                                 break;
 445                         case DB_LOCK_DEADLOCK:
 446                         case DB_LOCK_NOTGRANTED:
 447                                 goto retry;
 448                         default:
 449                                 ret = LDAP_OTHER;
 450                         }
 451
 452                         if ( ret ) {
 453                                 if(( rc=TXN_ABORT( ltid )) != 0 ) {
 454                                         text = "cache add & txn_abort failed";
 455                                 } else {
 456                                         rc = LDAP_OTHER;
 457                                         text = "cache add failed";
 458                                 }
 459                         } else {
 460                                 if(( rc=TXN_COMMIT( ltid, 0 )) != 0 ) {
 461                                         text = "txn_commit failed";
 462                                 } else {
 463                                         rc = LDAP_SUCCESS;
 464                                 }
 465                         }
 466                 }
 467         }
 468
 469         ltid = NULL;
 470         op->o_private = NULL;
 471
 472         if (rc == LDAP_SUCCESS) {
 473 #ifdef NEW_LOGGING
 474                 LDAP_LOG (( "add", LDAP_LEVEL_RESULTS, "bdb_add: added%s id=%08lx dn=\"%s\"\n", op->o_noop ? " (no-op)" : "", e->e_id, e->e_dn ));
 475 #else
 476                 Debug(LDAP_DEBUG_TRACE, "bdb_add: added%s id=%08lx dn=\"%s\"\n",
 477                         op->o_noop ? " (no-op)" : "", e->e_id, e->e_dn );
 478 #endif
 479                 text = NULL;
 480                 bdb_cache_entry_commit( e );
 481         }
 482         else {
 483 #ifdef NEW_LOGGING
 484                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: %s : %s (%d)\n", text, db_strerror(rc), rc ));
 485 #else
 486                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s : %s (%d)\n",
 487                         text, db_strerror(rc), rc );
 488 #endif
 489                 rc = LDAP_OTHER;
 490         }
 491
 492 return_results:
 493         send_ldap_result( conn, op, rc,
 494                 NULL, text, NULL, NULL );
 495
 496         if( rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 497                 ldap_pvt_thread_yield();
 498                 TXN_CHECKPOINT( bdb->bi_dbenv,
 499                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 500         }
 501
 502 done:
 503
 504         if( ltid != NULL ) {
 505                 TXN_ABORT( ltid );
 506                 op->o_private = NULL;
 507         }
 508
 509         return rc;
 510 }