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                         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 ( is_entry_subentry( p ) ) {
 241                 /* parent is a subentry, don't allow add */
 242                 Debug( LDAP_DEBUG_TRACE,
 243                         LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 244                         0, 0, 0 );
 245                 rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 246                 rs->sr_text = "parent is a subentry";
 247                 goto return_results;;
 248         }
 249         if ( is_entry_alias( p ) ) {
 250                 /* parent is an alias, don't allow add */
 251                 Debug( LDAP_DEBUG_TRACE,
 252                         LDAP_XSTRING(bdb_add) ": parent is alias\n",
 253                         0, 0, 0 );
 254                 rs->sr_err = LDAP_ALIAS_PROBLEM;
 255                 rs->sr_text = "parent is an alias";
 256                 goto return_results;;
 257         }
 258
 259         if ( is_entry_referral( p ) ) {
 260                 /* parent is a referral, don't allow add */
 261                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 262                         op->o_tmpmemctx );
 263                 rs->sr_ref = get_entry_referrals( op, p );
 264                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 265                 p = NULL;
 266                 Debug( LDAP_DEBUG_TRACE,
 267                         LDAP_XSTRING(bdb_add) ": parent is referral\n",
 268                         0, 0, 0 );
 269
 270                 rs->sr_err = LDAP_REFERRAL;
 271                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 272                 goto return_results;
 273         }
 274
 275         if ( subentry ) {
 276                 /* FIXME: */
 277                 /* parent must be an administrative point of the required kind */
 278         }
 279
 280         /* free parent and reader lock */
 281         if ( p != (Entry *)&slap_entry_root ) {
 282                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 283         }
 284         p = NULL;
 285
 286         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 287                 entry, NULL, ACL_WADD, NULL );
 288
 289         if ( ! rs->sr_err ) {
 290                 switch( opinfo.boi_err ) {
 291                 case DB_LOCK_DEADLOCK:
 292                 case DB_LOCK_NOTGRANTED:
 293                         goto retry;
 294                 }
 295
 296                 Debug( LDAP_DEBUG_TRACE,
 297                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 298                         0, 0, 0 );
 299                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 300                 rs->sr_text = "no write access to entry";
 301                 goto return_results;;
 302         }
 303
 304         /* nested transaction */
 305         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 306                 bdb->bi_db_opflags );
 307         rs->sr_text = NULL;
 308         if( rs->sr_err != 0 ) {
 309                 Debug( LDAP_DEBUG_TRACE,
 310                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 311                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 312                 rs->sr_err = LDAP_OTHER;
 313                 rs->sr_text = "internal error";
 314                 goto return_results;
 315         }
 316
 317         /* dn2id index */
 318         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 319         if ( rs->sr_err != 0 ) {
 320                 Debug( LDAP_DEBUG_TRACE,
 321                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 322                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 323
 324                 switch( rs->sr_err ) {
 325                 case DB_LOCK_DEADLOCK:
 326                 case DB_LOCK_NOTGRANTED:
 327                         goto retry;
 328                 case DB_KEYEXIST:
 329                         rs->sr_err = LDAP_ALREADY_EXISTS;
 330                         break;
 331                 default:
 332                         rs->sr_err = LDAP_OTHER;
 333                 }
 334                 goto return_results;
 335         }
 336
 337         /* attribute indexes */
 338         rs->sr_err = bdb_index_entry_add( op, lt2, op->oq_add.rs_e );
 339         if ( rs->sr_err != LDAP_SUCCESS ) {
 340                 Debug( LDAP_DEBUG_TRACE,
 341                         LDAP_XSTRING(bdb_add) ": index_entry_add failed\n",
 342                         0, 0, 0 );
 343                 switch( rs->sr_err ) {
 344                 case DB_LOCK_DEADLOCK:
 345                 case DB_LOCK_NOTGRANTED:
 346                         goto retry;
 347                 default:
 348                         rs->sr_err = LDAP_OTHER;
 349                 }
 350                 rs->sr_text = "index generation failed";
 351                 goto return_results;
 352         }
 353
 354         /* id2entry index */
 355         rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->oq_add.rs_e );
 356         if ( rs->sr_err != 0 ) {
 357                 Debug( LDAP_DEBUG_TRACE,
 358                         LDAP_XSTRING(bdb_add) ": id2entry_add failed\n",
 359                         0, 0, 0 );
 360                 switch( rs->sr_err ) {
 361                 case DB_LOCK_DEADLOCK:
 362                 case DB_LOCK_NOTGRANTED:
 363                         goto retry;
 364                 default:
 365                         rs->sr_err = LDAP_OTHER;
 366                 }
 367                 rs->sr_text = "entry store failed";
 368                 goto return_results;
 369         }
 370
 371         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 372                 rs->sr_err = LDAP_OTHER;
 373                 rs->sr_text = "txn_commit(2) failed";
 374                 goto return_results;
 375         }
 376
 377         /* post-read */
 378         if( op->o_postread ) {
 379                 if( postread_ctrl == NULL ) {
 380                         postread_ctrl = &ctrls[num_ctrls++];
 381                         ctrls[num_ctrls] = NULL;
 382                 }
 383                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 384                         &slap_post_read_bv, postread_ctrl ) )
 385                 {
 386                         Debug( LDAP_DEBUG_TRACE,
 387                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 388                                 "failed!\n", 0, 0, 0 );
 389                         goto return_results;
 390                 }
 391         }
 392
 393         if ( op->o_noop ) {
 394                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 395                         rs->sr_text = "txn_abort (no-op) failed";
 396                 } else {
 397                         rs->sr_err = LDAP_X_NO_OPERATION;
 398                         ltid = NULL;
 399                         goto return_results;
 400                 }
 401
 402         } else {
 403                 struct berval nrdn;
 404                 Entry *e = entry_dup( op->ora_e );
 405
 406                 /* pick the RDN if not suffix; otherwise pick the entire DN */
 407                 if (pdn.bv_len) {
 408                         nrdn.bv_val = e->e_nname.bv_val;
 409                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 410                 } else {
 411                         nrdn = e->e_nname;
 412                 }
 413
 414                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 415
 416                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 417                         rs->sr_text = "txn_commit failed";
 418                 } else {
 419                         rs->sr_err = LDAP_SUCCESS;
 420                 }
 421         }
 422
 423         ltid = NULL;
 424         op->o_private = NULL;
 425
 426         if ( rs->sr_err != LDAP_SUCCESS ) {
 427                 Debug( LDAP_DEBUG_TRACE,
 428                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 429                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 430                 rs->sr_err = LDAP_OTHER;
 431                 goto return_results;
 432         }
 433
 434         Debug(LDAP_DEBUG_TRACE,
 435                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 436                 op->o_noop ? " (no-op)" : "",
 437                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 438
 439         rs->sr_text = NULL;
 440         if( num_ctrls ) rs->sr_ctrls = ctrls;
 441
 442 return_results:
 443         send_ldap_result( op, rs );
 444         slap_graduate_commit_csn( op );
 445
 446         if( ltid != NULL ) {
 447                 TXN_ABORT( ltid );
 448         }
 449         op->o_private = NULL;
 450
 451         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
 452                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 453                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 454         }
 455
 456         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 457                 TXN_CHECKPOINT( bdb->bi_dbenv,
 458                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 459         }
 460         return rs->sr_err;
 461 }