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