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 2000-2005 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
  24 int
  25 bdb_add(Operation *op, SlapReply *rs )
  26 {
  27         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
  28         struct berval   pdn;
  29         Entry           *p = NULL;
  30         EntryInfo       *ei;
  31         char textbuf[SLAP_TEXT_BUFLEN];
  32         size_t textlen = sizeof textbuf;
  33         AttributeDescription *children = slap_schema.si_ad_children;
  34         AttributeDescription *entry = slap_schema.si_ad_entry;
  35         DB_TXN          *ltid = NULL, *lt2;
  36         struct bdb_op_info opinfo = {0};
  37 #ifdef BDB_SUBENTRIES
  38         int subentry;
  39 #endif
  40         u_int32_t       locker = 0;
  41         DB_LOCK         lock;
  42
  43         int             num_retries = 0;
  44
  45         Operation* ps_list;
  46         int             rc;
  47         EntryInfo       *suffix_ei = NULL;
  48         Entry           *ctxcsn_e;
  49         int                     ctxcsn_added = 0;
  50
  51         LDAPControl **postread_ctrl = NULL;
  52         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  53         int num_ctrls = 0;
  54
  55         Debug(LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_add) ": %s\n",
  56                 op->oq_add.rs_e->e_name.bv_val, 0, 0);
  57
  58         ctrls[num_ctrls] = 0;
  59
  60         /* check entry's schema */
  61         rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e,
  62                 NULL, &rs->sr_text, textbuf, textlen );
  63         if ( rs->sr_err != LDAP_SUCCESS ) {
  64                 Debug( LDAP_DEBUG_TRACE,
  65                         LDAP_XSTRING(bdb_add) ": entry failed schema check: "
  66                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
  67                 goto return_results;
  68         }
  69
  70 #ifdef BDB_SUBENTRIES
  71         subentry = is_entry_subentry( op->oq_add.rs_e );
  72 #endif
  73
  74         /*
  75          * acquire an ID outside of the operation transaction
  76          * to avoid serializing adds.
  77          */
  78         rs->sr_err = bdb_next_id( op->o_bd, NULL, &op->oq_add.rs_e->e_id );
  79         if( rs->sr_err != 0 ) {
  80                 Debug( LDAP_DEBUG_TRACE,
  81                         LDAP_XSTRING(bdb_add) ": next_id failed (%d)\n",
  82                         rs->sr_err, 0, 0 );
  83                 rs->sr_err = LDAP_OTHER;
  84                 rs->sr_text = "internal error";
  85                 goto return_results;
  86         }
  87
  88         if( 0 ) {
  89 retry:  /* transaction retry */
  90                 if( p ) {
  91                         /* free parent and reader lock */
  92                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
  93                         p = NULL;
  94                 }
  95                 rs->sr_err = TXN_ABORT( ltid );
  96                 ltid = NULL;
  97                 op->o_private = NULL;
  98                 op->o_do_not_cache = opinfo.boi_acl_cache;
  99                 if( rs->sr_err != 0 ) {
 100                         rs->sr_err = LDAP_OTHER;
 101                         rs->sr_text = "internal error";
 102                         goto return_results;
 103                 }
 104                 ldap_pvt_thread_yield();
 105                 bdb_trans_backoff( ++num_retries );
 106         }
 107
 108         /* begin transaction */
 109         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 110                 bdb->bi_db_opflags );
 111         rs->sr_text = NULL;
 112         if( rs->sr_err != 0 ) {
 113                 Debug( LDAP_DEBUG_TRACE,
 114                         LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n",
 115                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 116                 rs->sr_err = LDAP_OTHER;
 117                 rs->sr_text = "internal error";
 118                 goto return_results;
 119         }
 120
 121         locker = TXN_ID ( ltid );
 122
 123         opinfo.boi_bdb = op->o_bd;
 124         opinfo.boi_txn = ltid;
 125         opinfo.boi_locker = locker;
 126         opinfo.boi_err = 0;
 127         opinfo.boi_acl_cache = op->o_do_not_cache;
 128         op->o_private = &opinfo;
 129
 130         /*
 131          * Get the parent dn and see if the corresponding entry exists.
 132          */
 133         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 134                 pdn = slap_empty_bv;
 135         } else {
 136                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 137         }
 138
 139         /* get entry or parent */
 140         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 141                 1, locker, &lock );
 142         switch( rs->sr_err ) {
 143         case 0:
 144                 rs->sr_err = LDAP_ALREADY_EXISTS;
 145                 goto return_results;
 146         case DB_NOTFOUND:
 147                 break;
 148         case DB_LOCK_DEADLOCK:
 149         case DB_LOCK_NOTGRANTED:
 150                 goto retry;
 151         case LDAP_BUSY:
 152                 rs->sr_text = "ldap server busy";
 153                 goto return_results;
 154         default:
 155                 rs->sr_err = LDAP_OTHER;
 156                 rs->sr_text = "internal error";
 157                 goto return_results;
 158         }
 159
 160         p = ei->bei_e;
 161         if ( p ) {
 162                 if ( !bvmatch( &pdn, &p->e_nname ) ) {
 163                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 164                                 op->o_tmpmemctx );
 165                         rs->sr_ref = is_entry_referral( p )
 166                                 ? get_entry_referrals( op, p )
 167                                 : NULL;
 168                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 169                         p = NULL;
 170                         Debug( LDAP_DEBUG_TRACE,
 171                                 LDAP_XSTRING(bdb_add) ": parent "
 172                                 "does not exist\n", 0, 0, 0 );
 173
 174                         rs->sr_err = LDAP_REFERRAL;
 175                         send_ldap_result( op, rs );
 176
 177                         ber_bvarray_free( rs->sr_ref );
 178                         op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
 179                         rs->sr_ref = NULL;
 180                         rs->sr_matched = NULL;
 181
 182                         goto done;
 183                 }
 184
 185                 rs->sr_err = access_allowed( op, p,
 186                         children, NULL, ACL_WRITE, NULL );
 187
 188                 if ( ! rs->sr_err ) {
 189                         switch( opinfo.boi_err ) {
 190                         case DB_LOCK_DEADLOCK:
 191                         case DB_LOCK_NOTGRANTED:
 192                                 goto retry;
 193                         }
 194
 195                         Debug( LDAP_DEBUG_TRACE,
 196                                 LDAP_XSTRING(bdb_add) ": no write access "
 197                                 "to parent\n", 0, 0, 0 );
 198                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 199                         rs->sr_text = "no write access to parent";
 200                         goto return_results;;
 201                 }
 202
 203 #ifdef BDB_SUBENTRIES
 204                 if ( is_entry_subentry( p ) ) {
 205                         /* parent is a subentry, don't allow add */
 206                         Debug( LDAP_DEBUG_TRACE,
 207                                 LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 208                                 0, 0, 0 );
 209                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 210                         rs->sr_text = "parent is a subentry";
 211                         goto return_results;;
 212                 }
 213 #endif
 214                 if ( is_entry_alias( p ) ) {
 215                         /* parent is an alias, don't allow add */
 216                         Debug( LDAP_DEBUG_TRACE,
 217                                 LDAP_XSTRING(bdb_add) ": parent is alias\n",
 218                                 0, 0, 0 );
 219                         rs->sr_err = LDAP_ALIAS_PROBLEM;
 220                         rs->sr_text = "parent is an alias";
 221                         goto return_results;;
 222                 }
 223
 224                 if ( is_entry_referral( p ) ) {
 225                         /* parent is a referral, don't allow add */
 226                         rs->sr_matched = p->e_name.bv_val;
 227                         rs->sr_ref = get_entry_referrals( op, p );
 228
 229                         Debug( LDAP_DEBUG_TRACE,
 230                                 LDAP_XSTRING(bdb_add) ": parent is referral\n",
 231                                 0, 0, 0 );
 232
 233                         rs->sr_err = LDAP_REFERRAL;
 234                         send_ldap_result( op, rs );
 235
 236                         ber_bvarray_free( rs->sr_ref );
 237                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 238                         rs->sr_ref = NULL;
 239                         rs->sr_matched = NULL;
 240                         p = NULL;
 241                         goto done;
 242                 }
 243
 244 #ifdef BDB_SUBENTRIES
 245                 if ( subentry ) {
 246                         /* FIXME: */
 247                         /* parent must be an administrative point of the required kind */
 248                 }
 249 #endif
 250
 251                 /* free parent and reader lock */
 252                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 253                 p = NULL;
 254
 255         } else {
 256                 /*
 257                  * no parent!
 258                  *  if not attempting to add entry at suffix or with parent ""
 259                  */
 260                 if ((( !be_isroot( op ) && !be_shadow_update(op) )
 261                         || pdn.bv_len > 0 ) && !is_entry_glue( op->oq_add.rs_e ))
 262                 {
 263                         Debug( LDAP_DEBUG_TRACE,
 264                                 LDAP_XSTRING(bdb_add) ": %s denied\n",
 265                                 pdn.bv_len == 0 ? "suffix" : "entry at root",
 266                                 0, 0 );
 267                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 268                         goto return_results;
 269                 }
 270         }
 271
 272         if ( get_assert( op ) &&
 273                 ( test_filter( op, op->oq_add.rs_e, get_assertion( op ))
 274                         != LDAP_COMPARE_TRUE ))
 275         {
 276                 rs->sr_err = LDAP_ASSERTION_FAILED;
 277                 goto return_results;
 278         }
 279
 280         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 281                 entry, NULL, ACL_WRITE, NULL );
 282
 283         if ( ! rs->sr_err ) {
 284                 switch( opinfo.boi_err ) {
 285                 case DB_LOCK_DEADLOCK:
 286                 case DB_LOCK_NOTGRANTED:
 287                         goto retry;
 288                 }
 289
 290                 Debug( LDAP_DEBUG_TRACE,
 291                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 292                         0, 0, 0 );
 293                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 294                 rs->sr_text = "no write access to entry";
 295                 goto return_results;;
 296         }
 297
 298         /* nested transaction */
 299         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 300                 bdb->bi_db_opflags );
 301         rs->sr_text = NULL;
 302         if( rs->sr_err != 0 ) {
 303                 Debug( LDAP_DEBUG_TRACE,
 304                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 305                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 306                 rs->sr_err = LDAP_OTHER;
 307                 rs->sr_text = "internal error";
 308                 goto return_results;
 309         }
 310
 311         /* dn2id index */
 312         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 313         if ( rs->sr_err != 0 ) {
 314                 Debug( LDAP_DEBUG_TRACE,
 315                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 316                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 317
 318                 switch( rs->sr_err ) {
 319                 case DB_LOCK_DEADLOCK:
 320                 case DB_LOCK_NOTGRANTED:
 321                         goto retry;
 322                 case DB_KEYEXIST:
 323                         rs->sr_err = LDAP_ALREADY_EXISTS;
 324                         break;
 325                 default:
 326                         rs->sr_err = LDAP_OTHER;
 327                 }
 328                 goto return_results;
 329         }
 330
 331         /* id2entry index */
 332         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 333         if ( rs->sr_err != 0 ) {
 334                 Debug( LDAP_DEBUG_TRACE,
 335                         LDAP_XSTRING(bdb_add) ": id2entry_add failed\n",
 336                         0, 0, 0 );
 337                 switch( rs->sr_err ) {
 338                 case DB_LOCK_DEADLOCK:
 339                 case DB_LOCK_NOTGRANTED:
 340                         goto retry;
 341                 default:
 342                         rs->sr_err = LDAP_OTHER;
 343                 }
 344                 rs->sr_text = "entry store failed";
 345                 goto return_results;
 346         }
 347
 348         /* attribute indexes */
 349         rs->sr_err = bdb_index_entry_add( op, lt2, op->oq_add.rs_e );
 350         if ( rs->sr_err != LDAP_SUCCESS ) {
 351                 Debug( LDAP_DEBUG_TRACE,
 352                         LDAP_XSTRING(bdb_add) ": index_entry_add failed\n",
 353                         0, 0, 0 );
 354                 switch( rs->sr_err ) {
 355                 case DB_LOCK_DEADLOCK:
 356                 case DB_LOCK_NOTGRANTED:
 357                         goto retry;
 358                 default:
 359                         rs->sr_err = LDAP_OTHER;
 360                 }
 361                 rs->sr_text = "index generation failed";
 362                 goto return_results;
 363         }
 364         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 365                 rs->sr_err = LDAP_OTHER;
 366                 rs->sr_text = "txn_commit(2) failed";
 367                 goto return_results;
 368         }
 369
 370 #ifdef BDB_PSEARCH
 371         if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 372                 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
 373                         &ctxcsn_e, &ctxcsn_added, locker );
 374                 switch ( rc ) {
 375                 case BDB_CSN_ABORT :
 376                         goto return_results;
 377                 case BDB_CSN_RETRY :
 378                         goto retry;
 379                 }
 380         }
 381 #endif
 382
 383         /* post-read */
 384         if( op->o_postread ) {
 385                 if( postread_ctrl == NULL ) {
 386                         postread_ctrl = &ctrls[num_ctrls++];
 387                         ctrls[num_ctrls] = NULL;
 388                 }
 389                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 390                         &slap_post_read_bv, postread_ctrl ) )
 391                 {
 392                         Debug( LDAP_DEBUG_TRACE,
 393                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 394                                 "failed!\n", 0, 0, 0 );
 395                         goto return_results;
 396                 }
 397         }
 398
 399         if ( op->o_noop ) {
 400                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 401                         rs->sr_text = "txn_abort (no-op) failed";
 402                 } else {
 403                         rs->sr_err = LDAP_NO_OPERATION;
 404                         goto return_results;
 405                 }
 406
 407         } else {
 408                 struct berval nrdn;
 409                 Entry *e = entry_dup( op->ora_e );
 410
 411                 if (pdn.bv_len) {
 412                         nrdn.bv_val = e->e_nname.bv_val;
 413                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 414                 } else {
 415                         nrdn = e->e_nname;
 416                 }
 417
 418                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 419
 420                 if ( suffix_ei == NULL ) {
 421                         suffix_ei = BEI(e);
 422                 }
 423
 424 #ifdef BDB_PSEARCH
 425                 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
 426                         if ( ctxcsn_added ) {
 427                                 bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
 428                                         (struct berval *)&slap_ldapsync_cn_bv, locker );
 429                         }
 430                 }
 431
 432                 if ( rs->sr_err == LDAP_SUCCESS && !op->o_no_psearch ) {
 433                         ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
 434                         assert( BEI(e) );
 435                         LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
 436                                 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_ADD );
 437                                 if ( rc ) {
 438                                         Debug( LDAP_DEBUG_TRACE,
 439                                                 LDAP_XSTRING(bdb_add)
 440                                                 ": persistent search failed "
 441                                                 "(%d,%d)\n",
 442                                                 rc, rs->sr_err, 0 );
 443                                 }
 444                         }
 445                         ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
 446                 }
 447 #endif
 448
 449                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 450                         rs->sr_text = "txn_commit failed";
 451                 } else {
 452                         rs->sr_err = LDAP_SUCCESS;
 453                 }
 454         }
 455
 456         ltid = NULL;
 457         op->o_private = NULL;
 458
 459         if ( rs->sr_err != LDAP_SUCCESS ) {
 460                 Debug( LDAP_DEBUG_TRACE,
 461                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 462                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 463                 rs->sr_err = LDAP_OTHER;
 464                 goto return_results;
 465         }
 466
 467         Debug(LDAP_DEBUG_TRACE,
 468                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 469                 op->o_noop ? " (no-op)" : "",
 470                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 471
 472         rs->sr_text = NULL;
 473         if( num_ctrls ) rs->sr_ctrls = ctrls;
 474
 475 return_results:
 476         send_ldap_result( op, rs );
 477
 478         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 479                 ldap_pvt_thread_yield();
 480                 TXN_CHECKPOINT( bdb->bi_dbenv,
 481                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 482         }
 483
 484 done:
 485         if( ltid != NULL ) {
 486                 TXN_ABORT( ltid );
 487                 op->o_private = NULL;
 488         }
 489
 490         if( postread_ctrl != NULL ) {
 491                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 492                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 493         }
 494         return rs->sr_err;
 495 }