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