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         rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
  97         if ( rs->sr_err != LDAP_SUCCESS ) {
  98                 Debug( LDAP_DEBUG_TRACE,
  99                         LDAP_XSTRING(bdb_add) ": entry failed op attrs add: "
 100                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
 101                 goto return_results;
 102         }
 103
 104         /* check entry's schema */
 105         rs->sr_err = entry_schema_check( op, op->oq_add.rs_e, NULL,
 106                 get_relax(op), &rs->sr_text, textbuf, textlen );
 107         if ( rs->sr_err != LDAP_SUCCESS ) {
 108                 Debug( LDAP_DEBUG_TRACE,
 109                         LDAP_XSTRING(bdb_add) ": entry failed schema check: "
 110                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
 111                 goto return_results;
 112         }
 113
 114         subentry = is_entry_subentry( op->oq_add.rs_e );
 115
 116         /*
 117          * acquire an ID outside of the operation transaction
 118          * to avoid serializing adds.
 119          */
 120         rs->sr_err = bdb_next_id( op->o_bd, NULL, &op->oq_add.rs_e->e_id );
 121         if( rs->sr_err != 0 ) {
 122                 Debug( LDAP_DEBUG_TRACE,
 123                         LDAP_XSTRING(bdb_add) ": next_id failed (%d)\n",
 124                         rs->sr_err, 0, 0 );
 125                 rs->sr_err = LDAP_OTHER;
 126                 rs->sr_text = "internal error";
 127                 goto return_results;
 128         }
 129
 130         if( 0 ) {
 131 retry:  /* transaction retry */
 132                 if( p ) {
 133                         /* free parent and reader lock */
 134                         if ( p != (Entry *)&slap_entry_root ) {
 135                                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 136                         }
 137                         p = NULL;
 138                 }
 139                 rs->sr_err = TXN_ABORT( ltid );
 140                 ltid = NULL;
 141                 op->o_private = NULL;
 142                 op->o_do_not_cache = opinfo.boi_acl_cache;
 143                 if( rs->sr_err != 0 ) {
 144                         rs->sr_err = LDAP_OTHER;
 145                         rs->sr_text = "internal error";
 146                         goto return_results;
 147                 }
 148                 if ( op->o_abandon ) {
 149                         rs->sr_err = SLAPD_ABANDON;
 150                         goto return_results;
 151                 }
 152                 bdb_trans_backoff( ++num_retries );
 153         }
 154
 155         /* begin transaction */
 156         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 157                 bdb->bi_db_opflags );
 158         rs->sr_text = NULL;
 159         if( rs->sr_err != 0 ) {
 160                 Debug( LDAP_DEBUG_TRACE,
 161                         LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n",
 162                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 163                 rs->sr_err = LDAP_OTHER;
 164                 rs->sr_text = "internal error";
 165                 goto return_results;
 166         }
 167
 168         locker = TXN_ID ( ltid );
 169
 170         opinfo.boi_bdb = op->o_bd;
 171         opinfo.boi_txn = ltid;
 172         opinfo.boi_locker = locker;
 173         opinfo.boi_err = 0;
 174         opinfo.boi_acl_cache = op->o_do_not_cache;
 175         op->o_private = &opinfo;
 176
 177         /*
 178          * Get the parent dn and see if the corresponding entry exists.
 179          */
 180         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 181                 pdn = slap_empty_bv;
 182         } else {
 183                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 184         }
 185
 186         /* get entry or parent */
 187         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 188                 1, locker, &lock );
 189         switch( rs->sr_err ) {
 190         case 0:
 191                 rs->sr_err = LDAP_ALREADY_EXISTS;
 192                 goto return_results;
 193         case DB_NOTFOUND:
 194                 break;
 195         case DB_LOCK_DEADLOCK:
 196         case DB_LOCK_NOTGRANTED:
 197                 goto retry;
 198         case LDAP_BUSY:
 199                 rs->sr_text = "ldap server busy";
 200                 goto return_results;
 201         default:
 202                 rs->sr_err = LDAP_OTHER;
 203                 rs->sr_text = "internal error";
 204                 goto return_results;
 205         }
 206
 207         p = ei->bei_e;
 208         if ( !p )
 209                 p = (Entry *)&slap_entry_root;
 210
 211         if ( !bvmatch( &pdn, &p->e_nname ) ) {
 212                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 213                         op->o_tmpmemctx );
 214                 rs->sr_ref = is_entry_referral( p )
 215                         ? get_entry_referrals( op, p )
 216                         : NULL;
 217                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 218                 p = NULL;
 219                 Debug( LDAP_DEBUG_TRACE,
 220                         LDAP_XSTRING(bdb_add) ": parent "
 221                         "does not exist\n", 0, 0, 0 );
 222
 223                 rs->sr_err = LDAP_REFERRAL;
 224                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 225                 goto return_results;
 226         }
 227
 228         rs->sr_err = access_allowed( op, p,
 229                 children, NULL, ACL_WADD, NULL );
 230
 231         if ( ! rs->sr_err ) {
 232                 switch( opinfo.boi_err ) {
 233                 case DB_LOCK_DEADLOCK:
 234                 case DB_LOCK_NOTGRANTED:
 235                         goto retry;
 236                 }
 237
 238                 Debug( LDAP_DEBUG_TRACE,
 239                         LDAP_XSTRING(bdb_add) ": no write access to parent\n",
 240                         0, 0, 0 );
 241                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 242                 rs->sr_text = "no write access to parent";
 243                 goto return_results;;
 244         }
 245
 246         if ( p != (Entry *)&slap_entry_root ) {
 247                 if ( is_entry_subentry( p ) ) {
 248                         /* parent is a subentry, don't allow add */
 249                         Debug( LDAP_DEBUG_TRACE,
 250                                 LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 251                                 0, 0, 0 );
 252                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 253                         rs->sr_text = "parent is a subentry";
 254                         goto return_results;;
 255                 }
 256
 257                 if ( is_entry_alias( p ) ) {
 258                         /* parent is an alias, don't allow add */
 259                         Debug( LDAP_DEBUG_TRACE,
 260                                 LDAP_XSTRING(bdb_add) ": parent is alias\n",
 261                                 0, 0, 0 );
 262                         rs->sr_err = LDAP_ALIAS_PROBLEM;
 263                         rs->sr_text = "parent is an alias";
 264                         goto return_results;;
 265                 }
 266
 267                 if ( is_entry_referral( p ) ) {
 268                         /* parent is a referral, don't allow add */
 269                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 270                                 op->o_tmpmemctx );
 271                         rs->sr_ref = get_entry_referrals( op, p );
 272                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 273                         p = NULL;
 274                         Debug( LDAP_DEBUG_TRACE,
 275                                 LDAP_XSTRING(bdb_add) ": parent is referral\n",
 276                                 0, 0, 0 );
 277
 278                         rs->sr_err = LDAP_REFERRAL;
 279                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 280                         goto return_results;
 281                 }
 282
 283                 if ( subentry ) {
 284                         /* FIXME: */
 285                         /* parent must be an administrative point of the required kind */
 286                 }
 287         }
 288
 289         /* free parent and reader lock */
 290         if ( p != (Entry *)&slap_entry_root ) {
 291                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 292         }
 293         p = NULL;
 294
 295         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 296                 entry, NULL, ACL_WADD, NULL );
 297
 298         if ( ! rs->sr_err ) {
 299                 switch( opinfo.boi_err ) {
 300                 case DB_LOCK_DEADLOCK:
 301                 case DB_LOCK_NOTGRANTED:
 302                         goto retry;
 303                 }
 304
 305                 Debug( LDAP_DEBUG_TRACE,
 306                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 307                         0, 0, 0 );
 308                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 309                 rs->sr_text = "no write access to entry";
 310                 goto return_results;;
 311         }
 312
 313         /* nested transaction */
 314         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 315                 bdb->bi_db_opflags );
 316         rs->sr_text = NULL;
 317         if( rs->sr_err != 0 ) {
 318                 Debug( LDAP_DEBUG_TRACE,
 319                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 320                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 321                 rs->sr_err = LDAP_OTHER;
 322                 rs->sr_text = "internal error";
 323                 goto return_results;
 324         }
 325
 326         /* dn2id index */
 327         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 328         if ( rs->sr_err != 0 ) {
 329                 Debug( LDAP_DEBUG_TRACE,
 330                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 331                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 332
 333                 switch( rs->sr_err ) {
 334                 case DB_LOCK_DEADLOCK:
 335                 case DB_LOCK_NOTGRANTED:
 336                         goto retry;
 337                 case DB_KEYEXIST:
 338                         rs->sr_err = LDAP_ALREADY_EXISTS;
 339                         break;
 340                 default:
 341                         rs->sr_err = LDAP_OTHER;
 342                 }
 343                 goto return_results;
 344         }
 345
 346         /* attribute indexes */
 347         rs->sr_err = bdb_index_entry_add( op, lt2, op->oq_add.rs_e );
 348         if ( rs->sr_err != LDAP_SUCCESS ) {
 349                 Debug( LDAP_DEBUG_TRACE,
 350                         LDAP_XSTRING(bdb_add) ": index_entry_add failed\n",
 351                         0, 0, 0 );
 352                 switch( rs->sr_err ) {
 353                 case DB_LOCK_DEADLOCK:
 354                 case DB_LOCK_NOTGRANTED:
 355                         goto retry;
 356                 default:
 357                         rs->sr_err = LDAP_OTHER;
 358                 }
 359                 rs->sr_text = "index generation failed";
 360                 goto return_results;
 361         }
 362
 363         /* id2entry index */
 364         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 365         if ( rs->sr_err != 0 ) {
 366                 Debug( LDAP_DEBUG_TRACE,
 367                         LDAP_XSTRING(bdb_add) ": id2entry_add failed\n",
 368                         0, 0, 0 );
 369                 switch( rs->sr_err ) {
 370                 case DB_LOCK_DEADLOCK:
 371                 case DB_LOCK_NOTGRANTED:
 372                         goto retry;
 373                 default:
 374                         rs->sr_err = LDAP_OTHER;
 375                 }
 376                 rs->sr_text = "entry store failed";
 377                 goto return_results;
 378         }
 379
 380         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 381                 rs->sr_err = LDAP_OTHER;
 382                 rs->sr_text = "txn_commit(2) failed";
 383                 goto return_results;
 384         }
 385
 386         /* post-read */
 387         if( op->o_postread ) {
 388                 if( postread_ctrl == NULL ) {
 389                         postread_ctrl = &ctrls[num_ctrls++];
 390                         ctrls[num_ctrls] = NULL;
 391                 }
 392                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 393                         &slap_post_read_bv, postread_ctrl ) )
 394                 {
 395                         Debug( LDAP_DEBUG_TRACE,
 396                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 397                                 "failed!\n", 0, 0, 0 );
 398                         goto return_results;
 399                 }
 400         }
 401
 402         if ( op->o_noop ) {
 403                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 404                         rs->sr_text = "txn_abort (no-op) failed";
 405                 } else {
 406                         rs->sr_err = LDAP_X_NO_OPERATION;
 407                         ltid = NULL;
 408                         goto return_results;
 409                 }
 410
 411         } else {
 412                 struct berval nrdn;
 413                 Entry *e = entry_dup( op->ora_e );
 414
 415                 /* pick the RDN if not suffix; otherwise pick the entire DN */
 416                 if (pdn.bv_len) {
 417                         nrdn.bv_val = e->e_nname.bv_val;
 418                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 419                 } else {
 420                         nrdn = e->e_nname;
 421                 }
 422
 423                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 424
 425                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 426                         rs->sr_text = "txn_commit failed";
 427                 } else {
 428                         rs->sr_err = LDAP_SUCCESS;
 429                 }
 430         }
 431
 432         ltid = NULL;
 433         op->o_private = NULL;
 434
 435         if ( rs->sr_err != LDAP_SUCCESS ) {
 436                 Debug( LDAP_DEBUG_TRACE,
 437                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 438                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 439                 rs->sr_err = LDAP_OTHER;
 440                 goto return_results;
 441         }
 442
 443         Debug(LDAP_DEBUG_TRACE,
 444                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 445                 op->o_noop ? " (no-op)" : "",
 446                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 447
 448         rs->sr_text = NULL;
 449         if( num_ctrls ) rs->sr_ctrls = ctrls;
 450
 451 return_results:
 452         send_ldap_result( op, rs );
 453         slap_graduate_commit_csn( op );
 454
 455         if( ltid != NULL ) {
 456                 TXN_ABORT( ltid );
 457         }
 458         op->o_private = NULL;
 459
 460         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 461                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 462                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 463         }
 464
 465         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 466                 TXN_CHECKPOINT( bdb->bi_dbenv,
 467                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 468         }
 469         return rs->sr_err;
 470 }