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                 case LDAP_BUSY:
 155                         text = "ldap server busy";
 156                         goto return_results;
 157                 default:
 158                         rc = LDAP_OTHER;
 159                         text = "internal error";
 160                         goto return_results;
 161                 }
 162
 163                 if ( p == NULL ) {
 164                         char *matched_dn = NULL;
 165                         BerVarray refs;
 166
 167                         if ( matched != NULL ) {
 168                                 matched_dn = ch_strdup( matched->e_dn );
 169                                 refs = is_entry_referral( matched )
 170                                         ? get_entry_referrals( be, conn, op, matched )
 171                                         : NULL;
 172                                 bdb_cache_return_entry_r(&bdb->bi_cache, matched);
 173                                 matched = NULL;
 174
 175                         } else {
 176                                 refs = referral_rewrite( default_referral,
 177                                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 178                         }
 179
 180 #ifdef NEW_LOGGING
 181                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent does not exist\n" ));
 182 #else
 183                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent does not exist\n",
 184                                 0, 0, 0 );
 185 #endif
 186
 187                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 188                                 matched_dn, NULL, refs, NULL );
 189
 190                         ber_bvarray_free( refs );
 191                         ch_free( matched_dn );
 192
 193                         goto done;
 194                 }
 195
 196                 rc = access_allowed( be, conn, op, p,
 197                         children, NULL, ACL_WRITE, NULL );
 198
 199                 switch( opinfo.boi_err ) {
 200                 case DB_LOCK_DEADLOCK:
 201                 case DB_LOCK_NOTGRANTED:
 202                         /* free parent and reader lock */
 203                         bdb_cache_return_entry_r( &bdb->bi_cache, p );
 204                         p = NULL;
 205                         goto retry;
 206                 }
 207
 208                 if ( ! rc ) {
 209 #ifdef NEW_LOGGING
 210                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no write access to parent\n" ));
 211 #else
 212                         Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to parent\n",
 213                                 0, 0, 0 );
 214 #endif
 215                         rc = LDAP_INSUFFICIENT_ACCESS;
 216                         text = "no write access to parent";
 217                         goto return_results;;
 218                 }
 219
 220 #ifdef BDB_SUBENTRIES
 221                 if ( is_entry_subentry( p ) ) {
 222                         /* parent is a subentry, don't allow add */
 223 #ifdef NEW_LOGGING
 224                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is subentry\n" ));
 225 #else
 226                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 227                                 0, 0, 0 );
 228 #endif
 229                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 230                         text = "parent is a subentry";
 231                         goto return_results;;
 232                 }
 233 #endif
 234 #ifdef BDB_ALIASES
 235                 if ( is_entry_alias( p ) ) {
 236                         /* parent is an alias, don't allow add */
 237 #ifdef NEW_LOGGING
 238                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is alias\n" ));
 239 #else
 240                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is alias\n",
 241                                 0, 0, 0 );
 242 #endif
 243                         rc = LDAP_ALIAS_PROBLEM;
 244                         text = "parent is an alias";
 245                         goto return_results;;
 246                 }
 247 #endif
 248
 249                 if ( is_entry_referral( p ) ) {
 250                         /* parent is a referral, don't allow add */
 251                         char *matched_dn = p->e_dn;
 252                         BerVarray refs = get_entry_referrals( be, conn, op, p );
 253
 254 #ifdef NEW_LOGGING
 255                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: parent is referral\n" ));
 256 #else
 257                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is referral\n",
 258                                 0, 0, 0 );
 259 #endif
 260
 261                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 262                                 matched_dn, NULL, refs, NULL );
 263
 264                         ber_bvarray_free( refs );
 265                         bdb_cache_return_entry_r( &bdb->bi_cache, p );
 266                         p = NULL;
 267                         goto done;
 268                 }
 269
 270 #ifdef BDB_SUBENTRIES
 271                 if ( subentry ) {
 272                         /* FIXME: */
 273                         /* parent must be an administrative point of the required kind */
 274                 }
 275 #endif
 276
 277                 /* free parent and reader lock */
 278                 bdb_cache_return_entry_r( &bdb->bi_cache, p );
 279                 p = NULL;
 280
 281         } else {
 282                 /*
 283                  * no parent!
 284                  *      must be adding entry at suffix or with parent ""
 285                  */
 286                 if ( !be_isroot( be, &op->o_ndn )) {
 287                         if ( be_issuffix( be, (struct berval *)&slap_empty_bv )
 288                                 || be_isupdate( be, &op->o_ndn ) ) {
 289                                 p = (Entry *)&slap_entry_root;
 290
 291                                 /* check parent for "children" acl */
 292                                 rc = access_allowed( be, conn, op, p,
 293                                         children, NULL, ACL_WRITE, NULL );
 294                                 p = NULL;
 295
 296                                 switch( opinfo.boi_err ) {
 297                                 case DB_LOCK_DEADLOCK:
 298                                 case DB_LOCK_NOTGRANTED:
 299                                         goto retry;
 300                                 }
 301
 302                                 if ( ! rc ) {
 303 #ifdef NEW_LOGGING
 304                                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no write access to parent\n" ));
 305 #else
 306                                         Debug( LDAP_DEBUG_TRACE,
 307                                                 "bdb_add: no write access to parent\n",
 308                                                 0, 0, 0 );
 309 #endif
 310                                         rc = LDAP_INSUFFICIENT_ACCESS;
 311                                         text = "no write access to parent";
 312                                         goto return_results;;
 313                                 }
 314
 315                         } else {
 316 #ifdef NEW_LOGGING
 317                                 LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: %s denied\n", pdn.bv_len == 0 ? "suffix" : "entry at root" ));
 318 #else
 319                                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s denied\n",
 320                                         pdn.bv_len == 0 ? "suffix" : "entry at root",
 321                                         0, 0 );
 322 #endif
 323                                 rc = LDAP_INSUFFICIENT_ACCESS;
 324                                 goto return_results;
 325                         }
 326                 }
 327
 328 #ifdef BDB_SUBENTRIES
 329                 if( subentry ) {
 330 #ifdef NEW_LOGGING
 331                         LDAP_LOG (( "add", LDAP_LEVEL_DETAIL1, "bdb_add: no parent, cannot add subentry\n" ));
 332 #else
 333                         Debug( LDAP_DEBUG_TRACE,
 334                                 "bdb_add: no parent, cannot add subentry\n",
 335                                 0, 0, 0 );
 336 #endif
 337                         rc = LDAP_INSUFFICIENT_ACCESS;
 338                         text = "no parent, cannot add subentry";
 339                         goto return_results;;
 340                 }
 341 #endif
 342 #if 0
 343                 if ( ltid ) {
 344                         DBT obj;
 345                         obj.data = ",";
 346                         obj.size = 1;
 347                         rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
 348                                 DB_LOCK_WRITE, &lock);
 349                 }
 350 #endif
 351         }
 352
 353         /* dn2id index */
 354         rc = bdb_dn2id_add( be, ltid, &pdn, e );
 355         if ( rc != 0 ) {
 356 #ifdef NEW_LOGGING
 357                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: dn2id_add failed: %s (%d)\n", db_strerror(rc), rc ));
 358 #else
 359                 Debug( LDAP_DEBUG_TRACE, "bdb_add: dn2id_add failed: %s (%d)\n",
 360                         db_strerror(rc), rc, 0 );
 361 #endif
 362
 363                 switch( rc ) {
 364                 case DB_LOCK_DEADLOCK:
 365                 case DB_LOCK_NOTGRANTED:
 366                         goto retry;
 367                 case DB_KEYEXIST:
 368                         rc = LDAP_ALREADY_EXISTS;
 369                         break;
 370                 default:
 371                         rc = LDAP_OTHER;
 372                 }
 373                 goto return_results;
 374         }
 375
 376         /* id2entry index */
 377         rc = bdb_id2entry_add( be, ltid, e );
 378         if ( rc != 0 ) {
 379 #ifdef NEW_LOGGING
 380                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: id2entry_add failed\n" ));
 381 #else
 382                 Debug( LDAP_DEBUG_TRACE, "bdb_add: id2entry_add failed\n",
 383                         0, 0, 0 );
 384 #endif
 385                 switch( rc ) {
 386                 case DB_LOCK_DEADLOCK:
 387                 case DB_LOCK_NOTGRANTED:
 388                         goto retry;
 389                 default:
 390                         rc = LDAP_OTHER;
 391                 }
 392                 text = "entry store failed";
 393                 goto return_results;
 394         }
 395
 396         /* attribute indexes */
 397         rc = bdb_index_entry_add( be, ltid, e, e->e_attrs );
 398         if ( rc != LDAP_SUCCESS ) {
 399 #ifdef NEW_LOGGING
 400                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: index_entry_add failed\n" ));
 401 #else
 402                 Debug( LDAP_DEBUG_TRACE, "bdb_add: index_entry_add failed\n",
 403                         0, 0, 0 );
 404 #endif
 405                 switch( rc ) {
 406                 case DB_LOCK_DEADLOCK:
 407                 case DB_LOCK_NOTGRANTED:
 408                         goto retry;
 409                 default:
 410                         rc = LDAP_OTHER;
 411                 }
 412                 text = "index generation failed";
 413                 goto return_results;
 414         }
 415
 416         if( op->o_noop ) {
 417                 if (( rc=TXN_ABORT( ltid )) != 0 ) {
 418                         text = "txn_abort (no-op) failed";
 419                 } else {
 420                         rc = LDAP_SUCCESS;
 421                 }
 422
 423         } else {
 424                 char gid[DB_XIDDATASIZE];
 425
 426                 snprintf( gid, sizeof( gid ), "%s-%08lx-%08lx",
 427                         bdb_uuid.bv_val, (long) op->o_connid, (long) op->o_opid );
 428
 429                 if (( rc=TXN_PREPARE( ltid, gid )) != 0 ) {
 430                         text = "txn_prepare failed";
 431
 432                 } else {
 433                         if ( bdb_cache_add_entry_rw(&bdb->bi_cache,
 434                                 e, CACHE_WRITE_LOCK) != 0 )
 435                         {
 436                                 if(( rc=TXN_ABORT( ltid )) != 0 ) {
 437                                         text = "cache add & txn_abort failed";
 438                                 } else {
 439                                         rc = LDAP_OTHER;
 440                                         text = "cache add failed";
 441                                 }
 442                         } else {
 443                                 if(( rc=TXN_COMMIT( ltid, 0 )) != 0 ) {
 444                                         text = "txn_commit failed";
 445                                 } else {
 446                                         rc = LDAP_SUCCESS;
 447                                 }
 448                         }
 449                 }
 450         }
 451
 452         ltid = NULL;
 453         op->o_private = NULL;
 454
 455         if (rc == LDAP_SUCCESS) {
 456 #ifdef NEW_LOGGING
 457                 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 ));
 458 #else
 459                 Debug(LDAP_DEBUG_TRACE, "bdb_add: added%s id=%08lx dn=\"%s\"\n",
 460                         op->o_noop ? " (no-op)" : "", e->e_id, e->e_dn );
 461 #endif
 462                 text = NULL;
 463                 bdb_cache_entry_commit( e );
 464         }
 465         else {
 466 #ifdef NEW_LOGGING
 467                 LDAP_LOG (( "add", LDAP_LEVEL_ERR, "bdb_add: %s : %s (%d)\n", text, db_strerror(rc), rc ));
 468 #else
 469                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s : %s (%d)\n",
 470                         text, db_strerror(rc), rc );
 471 #endif
 472                 rc = LDAP_OTHER;
 473         }
 474
 475 return_results:
 476         send_ldap_result( conn, op, rc,
 477                 NULL, text, NULL, NULL );
 478
 479         if( rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 480                 ldap_pvt_thread_yield();
 481                 TXN_CHECKPOINT( bdb->bi_dbenv,
 482                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 483         }
 484
 485 done:
 486
 487         if( ltid != NULL ) {
 488                 TXN_ABORT( ltid );
 489                 op->o_private = NULL;
 490         }
 491
 492         return rc;
 493 }