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 2000-2006 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         int subentry;
  38         u_int32_t       locker = 0;
  39         DB_LOCK         lock;
  40
  41         int             num_retries = 0;
  42
  43         LDAPControl **postread_ctrl = NULL;
  44         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
  45         int num_ctrls = 0;
  46
  47 #ifdef LDAP_X_TXN
  48         int settle = 0;
  49 #endif
  50
  51         Debug(LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_add) ": %s\n",
  52                 op->oq_add.rs_e->e_name.bv_val, 0, 0);
  53
  54 #ifdef LDAP_X_TXN
  55         if( op->o_txnSpec ) {
  56                 /* acquire connection lock */
  57                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
  58                 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
  59                         rs->sr_text = "invalid transaction identifier";
  60                         rs->sr_err = LDAP_X_TXN_ID_INVALID;
  61                         goto txnReturn;
  62                 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
  63                         settle=1;
  64                         goto txnReturn;
  65                 }
  66
  67                 if( op->o_conn->c_txn_backend == NULL ) {
  68                         op->o_conn->c_txn_backend = op->o_bd;
  69
  70                 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
  71                         rs->sr_text = "transaction cannot span multiple database contexts";
  72                         rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
  73                         goto txnReturn;
  74                 }
  75
  76                 /* insert operation into transaction */
  77
  78                 rs->sr_text = "transaction specified";
  79                 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
  80
  81 txnReturn:
  82                 /* release connection lock */
  83                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
  84
  85                 if( !settle ) {
  86                         send_ldap_result( op, rs );
  87                         return rs->sr_err;
  88                 }
  89         }
  90 #endif
  91
  92         ctrls[num_ctrls] = 0;
  93
  94         /* add opattrs to shadow as well, only missing attrs will actually
  95          * be added; helps compatibility with older OL versions */
  96         slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
  97
  98         /* check entry's schema */
  99         rs->sr_err = entry_schema_check( op, op->oq_add.rs_e, NULL,
 100                 get_manageDIT(op), &rs->sr_text, textbuf, textlen );
 101         if ( rs->sr_err != LDAP_SUCCESS ) {
 102                 Debug( LDAP_DEBUG_TRACE,
 103                         LDAP_XSTRING(bdb_add) ": entry failed schema check: "
 104                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
 105                 goto return_results;
 106         }
 107
 108         subentry = is_entry_subentry( op->oq_add.rs_e );
 109
 110         /*
 111          * acquire an ID outside of the operation transaction
 112          * to avoid serializing adds.
 113          */
 114         rs->sr_err = bdb_next_id( op->o_bd, NULL, &op->oq_add.rs_e->e_id );
 115         if( rs->sr_err != 0 ) {
 116                 Debug( LDAP_DEBUG_TRACE,
 117                         LDAP_XSTRING(bdb_add) ": next_id failed (%d)\n",
 118                         rs->sr_err, 0, 0 );
 119                 rs->sr_err = LDAP_OTHER;
 120                 rs->sr_text = "internal error";
 121                 goto return_results;
 122         }
 123
 124         if( 0 ) {
 125 retry:  /* transaction retry */
 126                 if( p ) {
 127                         /* free parent and reader lock */
 128                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 129                         p = NULL;
 130                 }
 131                 rs->sr_err = TXN_ABORT( ltid );
 132                 ltid = NULL;
 133                 op->o_private = NULL;
 134                 op->o_do_not_cache = opinfo.boi_acl_cache;
 135                 if( rs->sr_err != 0 ) {
 136                         rs->sr_err = LDAP_OTHER;
 137                         rs->sr_text = "internal error";
 138                         goto return_results;
 139                 }
 140                 if ( op->o_abandon ) {
 141                         rs->sr_err = SLAPD_ABANDON;
 142                         goto return_results;
 143                 }
 144                 bdb_trans_backoff( ++num_retries );
 145         }
 146
 147         /* begin transaction */
 148         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 149                 bdb->bi_db_opflags );
 150         rs->sr_text = NULL;
 151         if( rs->sr_err != 0 ) {
 152                 Debug( LDAP_DEBUG_TRACE,
 153                         LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n",
 154                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 155                 rs->sr_err = LDAP_OTHER;
 156                 rs->sr_text = "internal error";
 157                 goto return_results;
 158         }
 159
 160         locker = TXN_ID ( ltid );
 161
 162         opinfo.boi_bdb = op->o_bd;
 163         opinfo.boi_txn = ltid;
 164         opinfo.boi_locker = locker;
 165         opinfo.boi_err = 0;
 166         opinfo.boi_acl_cache = op->o_do_not_cache;
 167         op->o_private = &opinfo;
 168
 169         /*
 170          * Get the parent dn and see if the corresponding entry exists.
 171          */
 172         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 173                 pdn = slap_empty_bv;
 174         } else {
 175                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 176         }
 177
 178         /* get entry or parent */
 179         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 180                 1, locker, &lock );
 181         switch( rs->sr_err ) {
 182         case 0:
 183                 rs->sr_err = LDAP_ALREADY_EXISTS;
 184                 goto return_results;
 185         case DB_NOTFOUND:
 186                 break;
 187         case DB_LOCK_DEADLOCK:
 188         case DB_LOCK_NOTGRANTED:
 189                 goto retry;
 190         case LDAP_BUSY:
 191                 rs->sr_text = "ldap server busy";
 192                 goto return_results;
 193         default:
 194                 rs->sr_err = LDAP_OTHER;
 195                 rs->sr_text = "internal error";
 196                 goto return_results;
 197         }
 198
 199         p = ei->bei_e;
 200         if ( p ) {
 201                 if ( !bvmatch( &pdn, &p->e_nname ) ) {
 202                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 203                                 op->o_tmpmemctx );
 204                         rs->sr_ref = is_entry_referral( p )
 205                                 ? get_entry_referrals( op, p )
 206                                 : NULL;
 207                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 208                         p = NULL;
 209                         Debug( LDAP_DEBUG_TRACE,
 210                                 LDAP_XSTRING(bdb_add) ": parent "
 211                                 "does not exist\n", 0, 0, 0 );
 212
 213                         rs->sr_err = LDAP_REFERRAL;
 214                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 215                         goto return_results;
 216                 }
 217
 218                 rs->sr_err = access_allowed( op, p,
 219                         children, NULL, ACL_WADD, NULL );
 220
 221                 if ( ! rs->sr_err ) {
 222                         switch( opinfo.boi_err ) {
 223                         case DB_LOCK_DEADLOCK:
 224                         case DB_LOCK_NOTGRANTED:
 225                                 goto retry;
 226                         }
 227
 228                         Debug( LDAP_DEBUG_TRACE,
 229                                 LDAP_XSTRING(bdb_add) ": no write access to parent\n",
 230                                 0, 0, 0 );
 231                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 232                         rs->sr_text = "no write access to parent";
 233                         goto return_results;;
 234                 }
 235
 236                 if ( is_entry_subentry( p ) ) {
 237                         /* parent is a subentry, don't allow add */
 238                         Debug( LDAP_DEBUG_TRACE,
 239                                 LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 240                                 0, 0, 0 );
 241                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 242                         rs->sr_text = "parent is a subentry";
 243                         goto return_results;;
 244                 }
 245                 if ( is_entry_alias( p ) ) {
 246                         /* parent is an alias, don't allow add */
 247                         Debug( LDAP_DEBUG_TRACE,
 248                                 LDAP_XSTRING(bdb_add) ": parent is alias\n",
 249                                 0, 0, 0 );
 250                         rs->sr_err = LDAP_ALIAS_PROBLEM;
 251                         rs->sr_text = "parent is an alias";
 252                         goto return_results;;
 253                 }
 254
 255                 if ( is_entry_referral( p ) ) {
 256                         /* parent is a referral, don't allow add */
 257                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 258                                 op->o_tmpmemctx );
 259                         rs->sr_ref = get_entry_referrals( op, p );
 260                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 261                         p = NULL;
 262                         Debug( LDAP_DEBUG_TRACE,
 263                                 LDAP_XSTRING(bdb_add) ": parent is referral\n",
 264                                 0, 0, 0 );
 265
 266                         rs->sr_err = LDAP_REFERRAL;
 267                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 268                         goto return_results;
 269                 }
 270
 271                 if ( subentry ) {
 272                         /* FIXME: */
 273                         /* parent must be an administrative point of the required kind */
 274                 }
 275
 276                 /* free parent and reader lock */
 277                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 278                 p = NULL;
 279
 280         } else {
 281                 /*
 282                  * no parent!
 283                  *  if not attempting to add entry at suffix or with parent ""
 284                  */
 285                 if ((( !be_isroot( op ) && !be_shadow_update(op) )
 286                         || pdn.bv_len > 0 ) && !is_entry_glue( op->oq_add.rs_e ))
 287                 {
 288                         Debug( LDAP_DEBUG_TRACE,
 289                                 LDAP_XSTRING(bdb_add) ": %s denied\n",
 290                                 pdn.bv_len == 0 ? "suffix" : "entry at root",
 291                                 0, 0 );
 292                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 293                         goto return_results;
 294                 }
 295         }
 296
 297         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 298                 entry, NULL, ACL_WADD, NULL );
 299
 300         if ( ! rs->sr_err ) {
 301                 switch( opinfo.boi_err ) {
 302                 case DB_LOCK_DEADLOCK:
 303                 case DB_LOCK_NOTGRANTED:
 304                         goto retry;
 305                 }
 306
 307                 Debug( LDAP_DEBUG_TRACE,
 308                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 309                         0, 0, 0 );
 310                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 311                 rs->sr_text = "no write access to entry";
 312                 goto return_results;;
 313         }
 314
 315         /* nested transaction */
 316         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 317                 bdb->bi_db_opflags );
 318         rs->sr_text = NULL;
 319         if( rs->sr_err != 0 ) {
 320                 Debug( LDAP_DEBUG_TRACE,
 321                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 322                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 323                 rs->sr_err = LDAP_OTHER;
 324                 rs->sr_text = "internal error";
 325                 goto return_results;
 326         }
 327
 328         /* dn2id index */
 329         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 330         if ( rs->sr_err != 0 ) {
 331                 Debug( LDAP_DEBUG_TRACE,
 332                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 333                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 334
 335                 switch( rs->sr_err ) {
 336                 case DB_LOCK_DEADLOCK:
 337                 case DB_LOCK_NOTGRANTED:
 338                         goto retry;
 339                 case DB_KEYEXIST:
 340                         rs->sr_err = LDAP_ALREADY_EXISTS;
 341                         break;
 342                 default:
 343                         rs->sr_err = LDAP_OTHER;
 344                 }
 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
 365         /* id2entry index */
 366         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 367         if ( rs->sr_err != 0 ) {
 368                 Debug( LDAP_DEBUG_TRACE,
 369                         LDAP_XSTRING(bdb_add) ": id2entry_add failed\n",
 370                         0, 0, 0 );
 371                 switch( rs->sr_err ) {
 372                 case DB_LOCK_DEADLOCK:
 373                 case DB_LOCK_NOTGRANTED:
 374                         goto retry;
 375                 default:
 376                         rs->sr_err = LDAP_OTHER;
 377                 }
 378                 rs->sr_text = "entry store failed";
 379                 goto return_results;
 380         }
 381
 382         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 383                 rs->sr_err = LDAP_OTHER;
 384                 rs->sr_text = "txn_commit(2) failed";
 385                 goto return_results;
 386         }
 387
 388         /* post-read */
 389         if( op->o_postread ) {
 390                 if( postread_ctrl == NULL ) {
 391                         postread_ctrl = &ctrls[num_ctrls++];
 392                         ctrls[num_ctrls] = NULL;
 393                 }
 394                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 395                         &slap_post_read_bv, postread_ctrl ) )
 396                 {
 397                         Debug( LDAP_DEBUG_TRACE,
 398                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 399                                 "failed!\n", 0, 0, 0 );
 400                         goto return_results;
 401                 }
 402         }
 403
 404         if ( op->o_noop ) {
 405                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 406                         rs->sr_text = "txn_abort (no-op) failed";
 407                 } else {
 408                         rs->sr_err = LDAP_X_NO_OPERATION;
 409                         ltid = NULL;
 410                         goto return_results;
 411                 }
 412
 413         } else {
 414                 struct berval nrdn;
 415                 Entry *e = entry_dup( op->ora_e );
 416
 417                 /* pick the RDN if not suffix; otherwise pick the entire DN */
 418                 if (pdn.bv_len) {
 419                         nrdn.bv_val = e->e_nname.bv_val;
 420                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 421                 } else {
 422                         nrdn = e->e_nname;
 423                 }
 424
 425                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 426
 427                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 428                         rs->sr_text = "txn_commit failed";
 429                 } else {
 430                         rs->sr_err = LDAP_SUCCESS;
 431                 }
 432         }
 433
 434         ltid = NULL;
 435         op->o_private = NULL;
 436
 437         if ( rs->sr_err != LDAP_SUCCESS ) {
 438                 Debug( LDAP_DEBUG_TRACE,
 439                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 440                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 441                 rs->sr_err = LDAP_OTHER;
 442                 goto return_results;
 443         }
 444
 445         Debug(LDAP_DEBUG_TRACE,
 446                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 447                 op->o_noop ? " (no-op)" : "",
 448                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 449
 450         rs->sr_text = NULL;
 451         if( num_ctrls ) rs->sr_ctrls = ctrls;
 452
 453 return_results:
 454         send_ldap_result( op, rs );
 455         slap_graduate_commit_csn( op );
 456
 457         if( ltid != NULL ) {
 458                 TXN_ABORT( ltid );
 459         }
 460         op->o_private = NULL;
 461
 462         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 463                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 464                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 465         }
 466
 467         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 468                 TXN_CHECKPOINT( bdb->bi_dbenv,
 469                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 470         }
 471         return rs->sr_err;
 472 }