git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/add.c

   1 /* add.c - ldap BerkeleyDB back-end add routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2003 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/string.h>
  21
  22 #include "back-bdb.h"
  23 #include "external.h"
  24
  25 int
  26 bdb_add(Operation *op, SlapReply *rs )
  27 {
  28         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  29         struct berval   pdn;
  30         Entry           *p;
  31         EntryInfo       *ei;
  32         char textbuf[SLAP_TEXT_BUFLEN];
  33         size_t textlen = sizeof textbuf;
  34         AttributeDescription *children = slap_schema.si_ad_children;
  35         AttributeDescription *entry = slap_schema.si_ad_entry;
  36         DB_TXN          *ltid = NULL, *lt2;
  37         struct bdb_op_info opinfo;
  38 #ifdef BDB_SUBENTRIES
  39         int subentry;
  40 #endif
  41         u_int32_t       locker = 0;
  42         DB_LOCK         lock;
  43         int             noop = 0;
  44
  45         int             num_retries = 0;
  46
  47         Operation* ps_list;
  48         int             rc;
  49         EntryInfo       *suffix_ei = NULL;
  50         Entry           *ctxcsn_e;
  51         int                     ctxcsn_added = 0;
  52
  53         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  54         int num_ctrls = 0;
  55
  56 #ifdef NEW_LOGGING
  57         LDAP_LOG ( OPERATION, ARGS, "==> bdb_add: %s\n", op->oq_add.rs_e->e_name.bv_val, 0, 0 );
  58 #else
  59         Debug(LDAP_DEBUG_ARGS, "==> bdb_add: %s\n", op->oq_add.rs_e->e_name.bv_val, 0, 0);
  60 #endif
  61
  62         /* check entry's schema */
  63         rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e, NULL, &rs->sr_text, textbuf, textlen );
  64         if ( rs->sr_err != LDAP_SUCCESS ) {
  65 #ifdef NEW_LOGGING
  66         LDAP_LOG ( OPERATION, ERR,
  67                 "bdb_add: entry failed schema check: %s (%d)\n", rs->sr_text, rs->sr_err, 0 );
  68 #else
  69                 Debug( LDAP_DEBUG_TRACE,
  70                         "bdb_add: entry failed schema check: %s (%d)\n",
  71                         rs->sr_text, rs->sr_err, 0 );
  72 #endif
  73                 goto return_results;
  74         }
  75
  76 #ifdef BDB_SUBENTRIES
  77         subentry = is_entry_subentry( op->oq_add.rs_e );
  78 #endif
  79
  80         /*
  81          * acquire an ID outside of the operation transaction
  82          * to avoid serializing adds.
  83          */
  84         rs->sr_err = bdb_next_id( op->o_bd, NULL, &op->oq_add.rs_e->e_id );
  85         if( rs->sr_err != 0 ) {
  86 #ifdef NEW_LOGGING
  87                 LDAP_LOG ( OPERATION, ERR,
  88                         "bdb_add: next_id failed (%d)\n", rs->sr_err, 0, 0 );
  89 #else
  90                 Debug( LDAP_DEBUG_TRACE,
  91                         "bdb_add: next_id failed (%d)\n", rs->sr_err, 0, 0 );
  92 #endif
  93                 rs->sr_err = LDAP_OTHER;
  94                 rs->sr_text = "internal error";
  95                 goto return_results;
  96         }
  97
  98         if( 0 ) {
  99 retry:  /* transaction retry */
 100                 if( p ) {
 101                         /* free parent and reader lock */
 102                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 103                         p = NULL;
 104                 }
 105                 rs->sr_err = TXN_ABORT( ltid );
 106                 ltid = NULL;
 107                 op->o_private = NULL;
 108                 op->o_do_not_cache = opinfo.boi_acl_cache;
 109                 if( rs->sr_err != 0 ) {
 110                         rs->sr_err = LDAP_OTHER;
 111                         rs->sr_text = "internal error";
 112                         goto return_results;
 113                 }
 114                 ldap_pvt_thread_yield();
 115                 bdb_trans_backoff( ++num_retries );
 116         }
 117
 118         /* begin transaction */
 119         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 120                 bdb->bi_db_opflags );
 121         rs->sr_text = NULL;
 122         if( rs->sr_err != 0 ) {
 123 #ifdef NEW_LOGGING
 124                 LDAP_LOG ( OPERATION, ERR,
 125                         "bdb_add: txn_begin failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 126 #else
 127                 Debug( LDAP_DEBUG_TRACE,
 128                         "bdb_add: txn_begin failed: %s (%d)\n",
 129                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 130 #endif
 131                 rs->sr_err = LDAP_OTHER;
 132                 rs->sr_text = "internal error";
 133                 goto return_results;
 134         }
 135
 136         locker = TXN_ID ( ltid );
 137
 138         opinfo.boi_bdb = op->o_bd;
 139         opinfo.boi_txn = ltid;
 140         opinfo.boi_locker = locker;
 141         opinfo.boi_err = 0;
 142         opinfo.boi_acl_cache = op->o_do_not_cache;
 143         op->o_private = &opinfo;
 144
 145         /*
 146          * Get the parent dn and see if the corresponding entry exists.
 147          */
 148         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 149                 pdn = slap_empty_bv;
 150         } else {
 151                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 152         }
 153
 154         /* get entry or parent */
 155         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 156                 1, locker, &lock );
 157         switch( rs->sr_err ) {
 158         case 0:
 159                 rs->sr_err = LDAP_ALREADY_EXISTS;
 160                 goto return_results;
 161         case DB_NOTFOUND:
 162                 break;
 163         case DB_LOCK_DEADLOCK:
 164         case DB_LOCK_NOTGRANTED:
 165                 goto retry;
 166         case LDAP_BUSY:
 167                 rs->sr_text = "ldap server busy";
 168                 goto return_results;
 169         default:
 170                 rs->sr_err = LDAP_OTHER;
 171                 rs->sr_text = "internal error";
 172                 goto return_results;
 173         }
 174
 175         p = ei->bei_e;
 176         if ( p ) {
 177                 if ( !bvmatch( &pdn, &p->e_nname ) ) {
 178                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 179                                 op->o_tmpmemctx );
 180                         rs->sr_ref = is_entry_referral( p )
 181                                 ? get_entry_referrals( op, p )
 182                                 : NULL;
 183                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 184                         p = NULL;
 185 #ifdef NEW_LOGGING
 186                         LDAP_LOG ( OPERATION, DETAIL1,
 187                                 "bdb_add: parent does not exist\n", 0, 0, 0 );
 188 #else
 189                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent does not exist\n",
 190                                 0, 0, 0 );
 191 #endif
 192
 193                         rs->sr_err = LDAP_REFERRAL;
 194                         send_ldap_result( op, rs );
 195
 196                         ber_bvarray_free( rs->sr_ref );
 197                         op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
 198                         rs->sr_ref = NULL;
 199                         rs->sr_matched = NULL;
 200
 201                         goto done;
 202                 }
 203
 204                 rs->sr_err = access_allowed( op, p,
 205                         children, NULL, ACL_WRITE, NULL );
 206
 207                 if ( ! rs->sr_err ) {
 208                         switch( opinfo.boi_err ) {
 209                         case DB_LOCK_DEADLOCK:
 210                         case DB_LOCK_NOTGRANTED:
 211                                 goto retry;
 212                         }
 213
 214 #ifdef NEW_LOGGING
 215                         LDAP_LOG ( OPERATION, DETAIL1,
 216                                 "bdb_add: no write access to parent\n", 0, 0, 0 );
 217 #else
 218                         Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to parent\n",
 219                                 0, 0, 0 );
 220 #endif
 221                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 222                         rs->sr_text = "no write access to parent";
 223                         goto return_results;;
 224                 }
 225
 226 #ifdef BDB_SUBENTRIES
 227                 if ( is_entry_subentry( p ) ) {
 228                         /* parent is a subentry, don't allow add */
 229 #ifdef NEW_LOGGING
 230                         LDAP_LOG ( OPERATION, DETAIL1,
 231                                 "bdb_add: parent is subentry\n", 0, 0, 0 );
 232 #else
 233                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 234                                 0, 0, 0 );
 235 #endif
 236                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 237                         rs->sr_text = "parent is a subentry";
 238                         goto return_results;;
 239                 }
 240 #endif
 241 #ifdef BDB_ALIASES
 242                 if ( is_entry_alias( p ) ) {
 243                         /* parent is an alias, don't allow add */
 244 #ifdef NEW_LOGGING
 245                         LDAP_LOG ( OPERATION, DETAIL1,
 246                                 "bdb_add: parent is alias\n", 0, 0, 0 );
 247 #else
 248                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is alias\n",
 249                                 0, 0, 0 );
 250 #endif
 251                         rs->sr_err = LDAP_ALIAS_PROBLEM;
 252                         rs->sr_text = "parent is an alias";
 253                         goto return_results;;
 254                 }
 255 #endif
 256
 257                 if ( is_entry_referral( p ) ) {
 258                         /* parent is a referral, don't allow add */
 259                         rs->sr_matched = p->e_name.bv_val;
 260                         rs->sr_ref = get_entry_referrals( op, p );
 261
 262 #ifdef NEW_LOGGING
 263                         LDAP_LOG ( OPERATION, DETAIL1,
 264                                 "bdb_add: parent is referral\n", 0, 0, 0 );
 265 #else
 266                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is referral\n",
 267                                 0, 0, 0 );
 268 #endif
 269
 270                         rs->sr_err = LDAP_REFERRAL;
 271                         send_ldap_result( op, rs );
 272
 273                         ber_bvarray_free( rs->sr_ref );
 274                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 275                         rs->sr_ref = NULL;
 276                         rs->sr_matched = NULL;
 277                         p = NULL;
 278                         goto done;
 279                 }
 280
 281 #ifdef BDB_SUBENTRIES
 282                 if ( subentry ) {
 283                         /* FIXME: */
 284                         /* parent must be an administrative point of the required kind */
 285                 }
 286 #endif
 287
 288                 /* free parent and reader lock */
 289                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 290                 p = NULL;
 291
 292         } else {
 293                 /*
 294                  * no parent!
 295                  *  if not attempting to add entry at suffix or with parent ""
 296                  */
 297                 if (( !be_isroot( op->o_bd, &op->o_ndn ) || pdn.bv_len > 0 )
 298                         && !is_entry_glue( op->oq_add.rs_e ))
 299                 {
 300 #ifdef NEW_LOGGING
 301                         LDAP_LOG ( OPERATION, DETAIL1, "bdb_add: %s denied\n",
 302                                 pdn.bv_len == 0 ? "suffix" : "entry at root", 0, 0 );
 303 #else
 304                         Debug( LDAP_DEBUG_TRACE, "bdb_add: %s denied\n",
 305                                 pdn.bv_len == 0 ? "suffix" : "entry at root",
 306                                 0, 0 );
 307 #endif
 308                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 309                         goto return_results;
 310                 }
 311         }
 312
 313         if ( get_assert( op ) &&
 314                 ( test_filter( op, op->oq_add.rs_e, get_assertion( op ))
 315                         != LDAP_COMPARE_TRUE ))
 316         {
 317                 rs->sr_err = LDAP_ASSERTION_FAILED;
 318                 goto return_results;
 319         }
 320
 321         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 322                 entry, NULL, ACL_WRITE, NULL );
 323
 324         if ( ! rs->sr_err ) {
 325                 switch( opinfo.boi_err ) {
 326                 case DB_LOCK_DEADLOCK:
 327                 case DB_LOCK_NOTGRANTED:
 328                         goto retry;
 329                 }
 330
 331 #ifdef NEW_LOGGING
 332                 LDAP_LOG ( OPERATION, DETAIL1,
 333                         "bdb_add: no write access to entry\n", 0, 0, 0 );
 334 #else
 335                 Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to entry\n",
 336                         0, 0, 0 );
 337 #endif
 338                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 339                 rs->sr_text = "no write access to entry";
 340                 goto return_results;;
 341         }
 342
 343         /* post-read */
 344         if( op->o_postread ) {
 345                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 346                         &slap_post_read_bv, &ctrls[num_ctrls] ) )
 347                 {
 348 #ifdef NEW_LOGGING
 349                         LDAP_LOG ( OPERATION, DETAIL1,
 350                                 "<=- bdb_add: post-read failed!\n", 0, 0, 0 );
 351 #else
 352                         Debug( LDAP_DEBUG_TRACE,
 353                                 "<=- bdb_add: post-read failed!\n", 0, 0, 0 );
 354 #endif
 355                         goto return_results;
 356                 }
 357                 ctrls[++num_ctrls] = NULL;
 358         }
 359
 360         /* nested transaction */
 361         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 362                 bdb->bi_db_opflags );
 363         rs->sr_text = NULL;
 364         if( rs->sr_err != 0 ) {
 365 #ifdef NEW_LOGGING
 366                 LDAP_LOG ( OPERATION, ERR,
 367                         "bdb_add: txn_begin(2) failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 368 #else
 369                 Debug( LDAP_DEBUG_TRACE,
 370                         "bdb_add: txn_begin(2) failed: %s (%d)\n",
 371                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 372 #endif
 373                 rs->sr_err = LDAP_OTHER;
 374                 rs->sr_text = "internal error";
 375                 goto return_results;
 376         }
 377
 378         /* dn2id index */
 379         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 380         if ( rs->sr_err != 0 ) {
 381 #ifdef NEW_LOGGING
 382                 LDAP_LOG ( OPERATION, ERR,
 383                         "bdb_add: dn2id_add failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 384 #else
 385                 Debug( LDAP_DEBUG_TRACE, "bdb_add: dn2id_add failed: %s (%d)\n",
 386                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 387 #endif
 388
 389                 switch( rs->sr_err ) {
 390                 case DB_LOCK_DEADLOCK:
 391                 case DB_LOCK_NOTGRANTED:
 392                         goto retry;
 393                 case DB_KEYEXIST:
 394                         rs->sr_err = LDAP_ALREADY_EXISTS;
 395                         break;
 396                 default:
 397                         rs->sr_err = LDAP_OTHER;
 398                 }
 399                 goto return_results;
 400         }
 401
 402         /* id2entry index */
 403         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 404         if ( rs->sr_err != 0 ) {
 405 #ifdef NEW_LOGGING
 406                 LDAP_LOG ( OPERATION, ERR, "bdb_add: id2entry_add failed\n", 0, 0, 0 );
 407 #else
 408                 Debug( LDAP_DEBUG_TRACE, "bdb_add: id2entry_add failed\n",
 409                         0, 0, 0 );
 410 #endif
 411                 switch( rs->sr_err ) {
 412                 case DB_LOCK_DEADLOCK:
 413                 case DB_LOCK_NOTGRANTED:
 414                         goto retry;
 415                 default:
 416                         rs->sr_err = LDAP_OTHER;
 417                 }
 418                 rs->sr_text = "entry store failed";
 419                 goto return_results;
 420         }
 421
 422         /* attribute indexes */
 423         rs->sr_err = bdb_index_entry_add( op, lt2, op->oq_add.rs_e );
 424         if ( rs->sr_err != LDAP_SUCCESS ) {
 425 #ifdef NEW_LOGGING
 426                 LDAP_LOG ( OPERATION, ERR,
 427                         "bdb_add: index_entry_add failed\n", 0, 0, 0 );
 428 #else
 429                 Debug( LDAP_DEBUG_TRACE, "bdb_add: index_entry_add failed\n",
 430                         0, 0, 0 );
 431 #endif
 432                 switch( rs->sr_err ) {
 433                 case DB_LOCK_DEADLOCK:
 434                 case DB_LOCK_NOTGRANTED:
 435                         goto retry;
 436                 default:
 437                         rs->sr_err = LDAP_OTHER;
 438                 }
 439                 rs->sr_text = "index generation failed";
 440                 goto return_results;
 441         }
 442         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 443                 rs->sr_err = LDAP_OTHER;
 444                 rs->sr_text = "txn_commit(2) failed";
 445                 goto return_results;
 446         }
 447
 448         if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 449                 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
 450                         &ctxcsn_e, &ctxcsn_added, locker );
 451                 switch ( rc ) {
 452                 case BDB_CSN_ABORT :
 453                         goto return_results;
 454                 case BDB_CSN_RETRY :
 455                         goto retry;
 456                 }
 457         }
 458
 459         if ( op->o_noop ) {
 460                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 461                         rs->sr_text = "txn_abort (no-op) failed";
 462                 } else {
 463                         noop = 1;
 464                         rs->sr_err = LDAP_SUCCESS;
 465                 }
 466
 467         } else {
 468                 char gid[DB_XIDDATASIZE];
 469
 470                 memset( gid, 0, sizeof(gid) );
 471                 snprintf( gid, sizeof( gid ), "%s-%08lx-%08lx",
 472                         bdb_uuid.bv_val, (long) op->o_connid, (long) op->o_opid );
 473
 474                 if (( rs->sr_err=TXN_PREPARE( ltid, gid )) != 0 ) {
 475                         rs->sr_text = "txn_prepare failed";
 476
 477                 } else {
 478                         struct berval nrdn;
 479
 480                         if (pdn.bv_len) {
 481                                 nrdn.bv_val = op->ora_e->e_nname.bv_val;
 482                                 nrdn.bv_len = pdn.bv_val - nrdn.bv_val - 1;
 483                         } else {
 484                                 nrdn = op->ora_e->e_nname;
 485                         }
 486
 487                         bdb_cache_add( bdb, ei, op->oq_add.rs_e, &nrdn, locker );
 488
 489                         if ( suffix_ei == NULL ) {
 490                                 suffix_ei = op->oq_add.rs_e->e_private;
 491                         }
 492
 493                         if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 494                                 if ( ctxcsn_added ) {
 495                                         bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
 496                                                         (struct berval *)&slap_ldapsync_cn_bv, locker );
 497                                 }
 498                         }
 499
 500                         if ( rs->sr_err == LDAP_SUCCESS && !noop && !op->o_no_psearch ) {
 501                                 ldap_pvt_thread_rdwr_rlock( &bdb->bi_pslist_rwlock );
 502                                 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 503                                         bdb_psearch( op, rs, ps_list, op->oq_add.rs_e, LDAP_PSEARCH_BY_ADD );
 504                                 }
 505                                 ldap_pvt_thread_rdwr_runlock( &bdb->bi_pslist_rwlock );
 506                         }
 507
 508                         if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 509                                 rs->sr_text = "txn_commit failed";
 510                         } else {
 511                                 rs->sr_err = LDAP_SUCCESS;
 512                         }
 513                 }
 514         }
 515
 516         ltid = NULL;
 517         op->o_private = NULL;
 518
 519         if (rs->sr_err != LDAP_SUCCESS) {
 520 #ifdef NEW_LOGGING
 521                 LDAP_LOG ( OPERATION, ERR,
 522                         "bdb_add: %s : %s (%d)\n",  rs->sr_text,
 523                                 db_strerror(rs->sr_err), rs->sr_err );
 524 #else
 525                 Debug( LDAP_DEBUG_TRACE, "bdb_add: %s : %s (%d)\n",
 526                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 527 #endif
 528                 rs->sr_err = LDAP_OTHER;
 529                 goto return_results;
 530         }
 531
 532 #ifdef NEW_LOGGING
 533         LDAP_LOG ( OPERATION, RESULTS,
 534                 "bdb_add: added%s id=%08lx dn=\"%s\"\n",
 535                 op->o_noop ? " (no-op)" : "",
 536                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 537 #else
 538         Debug(LDAP_DEBUG_TRACE, "bdb_add: added%s id=%08lx dn=\"%s\"\n",
 539                 op->o_noop ? " (no-op)" : "",
 540                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 541 #endif
 542
 543         rs->sr_text = NULL;
 544         if( num_ctrls ) rs->sr_ctrls = ctrls;
 545
 546 return_results:
 547         send_ldap_result( op, rs );
 548
 549         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 550                 ldap_pvt_thread_yield();
 551                 TXN_CHECKPOINT( bdb->bi_dbenv,
 552                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 553         }
 554
 555 done:
 556         if( ltid != NULL ) {
 557                 TXN_ABORT( ltid );
 558                 op->o_private = NULL;
 559         }
 560
 561         return ( ( rs->sr_err == LDAP_SUCCESS ) ? noop : rs->sr_err );
 562 }