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