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