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         DB_TXN          *ltid = NULL;
  32         struct bdb_op_info opinfo;
  33 #ifdef BDB_SUBENTRIES
  34         int subentry;
  35 #endif
  36 #if 0
  37         u_int32_t       lockid;
  38         DB_LOCK         lock;
  39 #endif
  40
  41 #ifdef NEW_LOGGING
  42         LDAP_LOG (( "add", LDAP_LEVEL_ARGS, "==> bdb_add: %s\n", e->e_dn ));
  43 #else
  44         Debug(LDAP_DEBUG_ARGS, "==> bdb_add: %s\n", e->e_dn, 0, 0);
  45 #endif
  46
  47         /* check entry's schema */
  48         rc = entry_schema_check( be, e, NULL, &text, textbuf, textlen );
  49         if ( rc != LDAP_SUCCESS ) {
  50 #ifdef NEW_LOGGING
  51         LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: entry failed schema check: %s (%d)\n", text, rc ));
  52 #else
  53                 Debug( LDAP_DEBUG_TRACE,
  54                         "bdb_add: entry failed schema check: %s (%d)\n",
  55                         text, rc, 0 );
  56 #endif
  57                 goto return_results;
  58         }
  59
  60 #ifdef BDB_SUBENTRIES
  61         subentry = is_entry_subentry( e );
  62 #endif
  63
  64         /*
  65          * acquire an ID outside of the operation transaction
  66          * to avoid serializing adds.
  67          */
  68         rc = bdb_next_id( be, NULL, &e->e_id );
  69         if( rc != 0 ) {
  70 #ifdef NEW_LOGGING
  71                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: next_id failed (%d)\n", rc ));
  72 #else
  73                 Debug( LDAP_DEBUG_TRACE,
  74                         "bdb_add: next_id failed (%d)\n",
  75                         rc, 0, 0 );
  76 #endif
  77                 rc = LDAP_OTHER;
  78                 text = "internal error";
  79                 goto return_results;
  80         }
  81
  82         if( 0 ) {
  83 retry:  /* transaction retry */
  84                 rc = TXN_ABORT( ltid );
  85                 ltid = NULL;
  86                 op->o_private = NULL;
  87                 if( rc != 0 ) {
  88                         rc = LDAP_OTHER;
  89                         text = "internal error";
  90                         goto return_results;
  91                 }
  92                 ldap_pvt_thread_yield();
  93         }
  94
  95         /* begin transaction */
  96         rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
  97                 bdb->bi_db_opflags );
  98         text = NULL;
  99         if( rc != 0 ) {
 100 #ifdef NEW_LOGGING
 101                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: txn_begin failed: %s (%d)\n", db_strerror(rc), rc ));
 102 #else
 103                 Debug( LDAP_DEBUG_TRACE,
 104                         "bdb_add: txn_begin failed: %s (%d)\n",
 105                         db_strerror(rc), rc, 0 );
 106 #endif
 107                 rc = LDAP_OTHER;
 108                 text = "internal error";
 109                 goto return_results;
 110         }
 111 #if 0
 112         lockid = TXN_ID( ltid );
 113 #endif
 114
 115         opinfo.boi_bdb = be;
 116         opinfo.boi_txn = ltid;
 117         opinfo.boi_err = 0;
 118         op->o_private = &opinfo;
 119
 120         /*
 121          * Get the parent dn and see if the corresponding entry exists.
 122          * If the parent does not exist, only allow the "root" user to
 123          * add the entry.
 124          */
 125         if ( be_issuffix( be, &e->e_nname ) ) {
 126                 pdn = slap_empty_bv;
 127         } else {
 128                 dnParent( &e->e_nname, &pdn );
 129         }
 130
 131         if( pdn.bv_len != 0 ) {
 132                 Entry *matched = NULL;
 133
 134 #if 0
 135                 if ( ltid ) {
 136                         DBT obj;
 137                         obj.data = pdn.bv_val-1;
 138                         obj.size = pdn.bv_len+1;
 139                         rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
 140                                 DB_LOCK_WRITE, &lock);
 141                 }
 142 #endif
 143
 144                 /* get parent */
 145                 rc = bdb_dn2entry_r( be, ltid, &pdn, &p, &matched, 0 );
 146
 147                 switch( rc ) {
 148                 case 0:
 149                 case DB_NOTFOUND:
 150                         break;
 151                 case DB_LOCK_DEADLOCK:
 152                 case DB_LOCK_NOTGRANTED:
 153                         goto retry;
 154                 default:
 155                         rc = LDAP_OTHER;
 156                         text = "internal error";
 157                         goto return_results;
 158                 }
 159
 160                 if ( p == NULL ) {
 161                         char *matched_dn = NULL;
 162                         BerVarray refs;
 163
 164                         if ( matched != NULL ) {
 165                                 matched_dn = ch_strdup( matched->e_dn );
 166                                 refs = is_entry_referral( matched )
 167                                         ? get_entry_referrals( be, conn, op, matched )
 168                                         : NULL;
 169                                 bdb_cache_return_entry_r(&bdb->bi_cache, matched);
 170                                 matched = NULL;
 171
 172                         } else {
 173                                 refs = referral_rewrite( default_referral,
 174                                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 175                         }
 176
 177 #ifdef NEW_LOGGING
 178                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent does not exist\n" ));
 179 #else
 180                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent does not exist\n",
 181                                 0, 0, 0 );
 182 #endif
 183
 184                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 185                                 matched_dn, NULL, refs, NULL );
 186
 187                         ber_bvarray_free( refs );
 188                         ch_free( matched_dn );
 189
 190                         goto done;
 191                 }
 192
 193                 rc = access_allowed( be, conn, op, p,
 194                         children, NULL, ACL_WRITE, NULL );
 195
 196                 switch( opinfo.boi_err ) {
 197                 case DB_LOCK_DEADLOCK:
 198                 case DB_LOCK_NOTGRANTED:
 199                         /* free parent and reader lock */
 200                         bdb_cache_return_entry_r( &bdb->bi_cache, p );
 201                         p = NULL;
 202                         goto retry;
 203                 }
 204
 205                 if ( ! rc ) {
 206 #ifdef NEW_LOGGING
 207                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no write access to parent\n" ));
 208 #else
 209                         Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to parent\n",
 210                                 0, 0, 0 );
 211 #endif
 212                         rc = LDAP_INSUFFICIENT_ACCESS;
 213                         text = "no write access to parent";
 214                         goto return_results;;
 215                 }
 216
 217 #ifdef BDB_SUBENTRIES
 218                 if ( is_entry_subentry( p ) ) {
 219                         /* parent is a subentry, don't allow add */
 220 #ifdef NEW_LOGGING
 221                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is subentry\n" ));
 222 #else
 223                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 224                                 0, 0, 0 );
 225 #endif
 226                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 227                         text = "parent is a subentry";
 228                         goto return_results;;
 229                 }
 230 #endif
 231 #ifdef BDB_ALIASES
 232                 if ( is_entry_alias( p ) ) {
 233                         /* parent is an alias, don't allow add */
 234 #ifdef NEW_LOGGING
 235                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is alias\n" ));
 236 #else
 237                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is alias\n",
 238                                 0, 0, 0 );
 239 #endif
 240                         rc = LDAP_ALIAS_PROBLEM;
 241                         text = "parent is an alias";
 242                         goto return_results;;
 243                 }
 244 #endif
 245
 246                 if ( is_entry_referral( p ) ) {
 247                         /* parent is a referral, don't allow add */
 248                         char *matched_dn = p->e_dn;
 249                         BerVarray refs = get_entry_referrals( be, conn, op, p );
 250
 251 #ifdef NEW_LOGGING
 252                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is referral\n" ));
 253 #else
 254                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is referral\n",
 255                                 0, 0, 0 );
 256 #endif
 257
 258                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 259                                 matched_dn, NULL, refs, NULL );
 260
 261                         ber_bvarray_free( refs );
 262                         bdb_cache_return_entry_r( &bdb->bi_cache, p );
 263                         p = NULL;
 264                         goto done;
 265                 }
 266
 267 #ifdef BDB_SUBENTRIES
 268                 if ( subentry ) {
 269                         /* FIXME: */
 270                         /* parent must be an administrative point of the required kind */
 271                 }
 272 #endif
 273
 274                 /* free parent and reader lock */
 275                 bdb_cache_return_entry_r( &bdb->bi_cache, p );
 276                 p = NULL;
 277
 278         } else {
 279                 /*
 280                  * no parent!
 281                  *      must be adding entry at suffix or with parent ""
 282                  */
 283                 if ( !be_isroot( be, &op->o_ndn )) {
 284                         if ( be_issuffix( be, (struct berval *)&slap_empty_bv )
 285                                 || be_isupdate( be, &op->o_ndn ) ) {
 286                                 p = (Entry *)&slap_entry_root;
 287
 288                                 /* check parent for "children" acl */
 289                                 rc = access_allowed( be, conn, op, p,
 290                                         children, NULL, ACL_WRITE, NULL );
 291                                 p = NULL;
 292
 293                                 switch( opinfo.boi_err ) {
 294                                 case DB_LOCK_DEADLOCK:
 295                                 case DB_LOCK_NOTGRANTED:
 296                                         goto retry;
 297                                 }
 298
 299                                 if ( ! rc ) {
 300 #ifdef NEW_LOGGING
 301                                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no write access to parent\n" ));
 302 #else
 303                                         Debug( LDAP_DEBUG_TRACE,
 304                                                 "bdb_add: no write access to parent\n",
 305                                                 0, 0, 0 );
 306 #endif
 307                                         rc = LDAP_INSUFFICIENT_ACCESS;
 308                                         text = "no write access to parent";
 309                                         goto return_results;;
 310                                 }
 311
 312                         } else {
 313 #ifdef NEW_LOGGING
 314                                 LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: %s denied\n", pdn.bv_len == 0 ? "suffix" : "entry at root" ));
 315 #else
 316                                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s denied\n",
 317                                         pdn.bv_len == 0 ? "suffix" : "entry at root",
 318                                         0, 0 );
 319 #endif
 320                                 rc = LDAP_INSUFFICIENT_ACCESS;
 321                                 goto return_results;
 322                         }
 323                 }
 324
 325 #ifdef BDB_SUBENTRIES
 326                 if( subentry ) {
 327 #ifdef NEW_LOGGING
 328                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no parent, cannot add subentry\n" ));
 329 #else
 330                         Debug( LDAP_DEBUG_TRACE,
 331                                 "bdb_add: no parent, cannot add subentry\n",
 332                                 0, 0, 0 );
 333 #endif
 334                         rc = LDAP_INSUFFICIENT_ACCESS;
 335                         text = "no parent, cannot add subentry";
 336                         goto return_results;;
 337                 }
 338 #endif
 339 #if 0
 340                 if ( ltid ) {
 341                         DBT obj;
 342                         obj.data = ",";
 343                         obj.size = 1;
 344                         rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
 345                                 DB_LOCK_WRITE, &lock);
 346                 }
 347 #endif
 348         }
 349
 350         /* dn2id index */
 351         rc = bdb_dn2id_add( be, ltid, &pdn, e );
 352         if ( rc != 0 ) {
 353 #ifdef NEW_LOGGING
 354                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: dn2id_add failed: %s (%d)\n", db_strerror(rc), rc ));
 355 #else
 356                 Debug( LDAP_DEBUG_TRACE, "bdb_add: dn2id_add failed: %s (%d)\n",
 357                         db_strerror(rc), rc, 0 );
 358 #endif
 359
 360                 switch( rc ) {
 361                 case DB_LOCK_DEADLOCK:
 362                 case DB_LOCK_NOTGRANTED:
 363                         goto retry;
 364                 case DB_KEYEXIST:
 365                         rc = LDAP_ALREADY_EXISTS;
 366                         break;
 367                 default:
 368                         rc = LDAP_OTHER;
 369                 }
 370                 goto return_results;
 371         }
 372
 373         /* id2entry index */
 374         rc = bdb_id2entry_add( be, ltid, e );
 375         if ( rc != 0 ) {
 376 #ifdef NEW_LOGGING
 377                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: id2entry_add failed\n" ));
 378 #else
 379                 Debug( LDAP_DEBUG_TRACE, "bdb_add: id2entry_add failed\n",
 380                         0, 0, 0 );
 381 #endif
 382                 switch( rc ) {
 383                 case DB_LOCK_DEADLOCK:
 384                 case DB_LOCK_NOTGRANTED:
 385                         goto retry;
 386                 default:
 387                         rc = LDAP_OTHER;
 388                 }
 389                 text = "entry store failed";
 390                 goto return_results;
 391         }
 392
 393         /* attribute indexes */
 394         rc = bdb_index_entry_add( be, ltid, e, e->e_attrs );
 395         if ( rc != LDAP_SUCCESS ) {
 396 #ifdef NEW_LOGGING
 397                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: index_entry_add failed\n" ));
 398 #else
 399                 Debug( LDAP_DEBUG_TRACE, "bdb_add: index_entry_add failed\n",
 400                         0, 0, 0 );
 401 #endif
 402                 switch( rc ) {
 403                 case DB_LOCK_DEADLOCK:
 404                 case DB_LOCK_NOTGRANTED:
 405                         goto retry;
 406                 default:
 407                         rc = LDAP_OTHER;
 408                 }
 409                 text = "index generation failed";
 410                 goto return_results;
 411         }
 412
 413         if( op->o_noop ) {
 414                 if (( rc=TXN_ABORT( ltid )) != 0 ) {
 415                         text = "txn_abort (no-op) failed";
 416                 } else {
 417                         rc = LDAP_SUCCESS;
 418                 }
 419
 420         } else {
 421                 char gid[DB_XIDDATASIZE];
 422
 423                 snprintf( gid, sizeof( gid ), "%s-%08lx-%08lx",
 424                         bdb_uuid.bv_val, (long) op->o_connid, (long) op->o_opid );
 425
 426                 if (( rc=TXN_PREPARE( ltid, gid )) != 0 ) {
 427                         text = "txn_prepare failed";
 428
 429                 } else {
 430                         if ( bdb_cache_add_entry_rw(&bdb->bi_cache,
 431                                 e, CACHE_WRITE_LOCK) != 0 )
 432                         {
 433                                 if(( rc=TXN_ABORT( ltid )) != 0 ) {
 434                                         text = "cache add & txn_abort failed";
 435                                 } else {
 436                                         rc = LDAP_OTHER;
 437                                         text = "cache add failed";
 438                                 }
 439                         } else {
 440                                 if(( rc=TXN_COMMIT( ltid, 0 )) != 0 ) {
 441                                         text = "txn_commit failed";
 442                                 } else {
 443                                         rc = LDAP_SUCCESS;
 444                                 }
 445                         }
 446                 }
 447         }
 448
 449         ltid = NULL;
 450         op->o_private = NULL;
 451
 452         if (rc == LDAP_SUCCESS) {
 453 #ifdef NEW_LOGGING
 454                 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 ));
 455 #else
 456                 Debug(LDAP_DEBUG_TRACE, "bdb_add: added%s id=%08lx dn=\"%s\"\n",
 457                         op->o_noop ? " (no-op)" : "", e->e_id, e->e_dn );
 458 #endif
 459                 text = NULL;
 460                 bdb_cache_entry_commit( e );
 461         }
 462         else {
 463 #ifdef NEW_LOGGING
 464                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: %s : %s (%d)\n", text, db_strerror(rc), rc ));
 465 #else
 466                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s : %s (%d)\n",
 467                         text, db_strerror(rc), rc );
 468 #endif
 469                 rc = LDAP_OTHER;
 470         }
 471
 472 return_results:
 473         send_ldap_result( conn, op, rc,
 474                 NULL, text, NULL, NULL );
 475
 476         if( rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 477                 ldap_pvt_thread_yield();
 478                 TXN_CHECKPOINT( bdb->bi_dbenv,
 479                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 480         }
 481
 482 done:
 483
 484         if( ltid != NULL ) {
 485                 TXN_ABORT( ltid );
 486                 op->o_private = NULL;
 487         }
 488
 489         return rc;
 490 }