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         /* add opattrs to shadow as well, only missing attrs will actually
  55          * be added; helps compatibility with older OL versions */
  56         slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
  57
  58         /* check entry's schema */
  59         rs->sr_err = entry_schema_check( op, op->oq_add.rs_e, NULL,
  60                 get_manageDIT(op), &rs->sr_text, textbuf, textlen );
  61         if ( rs->sr_err != LDAP_SUCCESS ) {
  62                 Debug( LDAP_DEBUG_TRACE,
  63                         LDAP_XSTRING(bdb_add) ": entry failed schema check: "
  64                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
  65                 goto return_results;
  66         }
  67
  68 #ifdef BDB_SUBENTRIES
  69         subentry = is_entry_subentry( op->oq_add.rs_e );
  70 #endif
  71
  72         /*
  73          * acquire an ID outside of the operation transaction
  74          * to avoid serializing adds.
  75          */
  76         rs->sr_err = bdb_next_id( op->o_bd, NULL, &op->oq_add.rs_e->e_id );
  77         if( rs->sr_err != 0 ) {
  78                 Debug( LDAP_DEBUG_TRACE,
  79                         LDAP_XSTRING(bdb_add) ": next_id failed (%d)\n",
  80                         rs->sr_err, 0, 0 );
  81                 rs->sr_err = LDAP_OTHER;
  82                 rs->sr_text = "internal error";
  83                 goto return_results;
  84         }
  85
  86         if( 0 ) {
  87 retry:  /* transaction retry */
  88                 if( p ) {
  89                         /* free parent and reader lock */
  90                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
  91                         p = NULL;
  92                 }
  93                 rs->sr_err = TXN_ABORT( ltid );
  94                 ltid = NULL;
  95                 op->o_private = NULL;
  96                 op->o_do_not_cache = opinfo.boi_acl_cache;
  97                 if( rs->sr_err != 0 ) {
  98                         rs->sr_err = LDAP_OTHER;
  99                         rs->sr_text = "internal error";
 100                         goto return_results;
 101                 }
 102                 if ( op->o_abandon ) {
 103                         rs->sr_err = SLAPD_ABANDON;
 104                         goto return_results;
 105                 }
 106                 ldap_pvt_thread_yield();
 107                 bdb_trans_backoff( ++num_retries );
 108         }
 109
 110         /* begin transaction */
 111         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
 112                 bdb->bi_db_opflags );
 113         rs->sr_text = NULL;
 114         if( rs->sr_err != 0 ) {
 115                 Debug( LDAP_DEBUG_TRACE,
 116                         LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n",
 117                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 118                 rs->sr_err = LDAP_OTHER;
 119                 rs->sr_text = "internal error";
 120                 goto return_results;
 121         }
 122
 123         locker = TXN_ID ( ltid );
 124
 125         opinfo.boi_bdb = op->o_bd;
 126         opinfo.boi_txn = ltid;
 127         opinfo.boi_locker = locker;
 128         opinfo.boi_err = 0;
 129         opinfo.boi_acl_cache = op->o_do_not_cache;
 130         op->o_private = &opinfo;
 131
 132         /*
 133          * Get the parent dn and see if the corresponding entry exists.
 134          */
 135         if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
 136                 pdn = slap_empty_bv;
 137         } else {
 138                 dnParent( &op->oq_add.rs_e->e_nname, &pdn );
 139         }
 140
 141         /* get entry or parent */
 142         rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei,
 143                 1, locker, &lock );
 144         switch( rs->sr_err ) {
 145         case 0:
 146                 rs->sr_err = LDAP_ALREADY_EXISTS;
 147                 goto return_results;
 148         case DB_NOTFOUND:
 149                 break;
 150         case DB_LOCK_DEADLOCK:
 151         case DB_LOCK_NOTGRANTED:
 152                 goto retry;
 153         case LDAP_BUSY:
 154                 rs->sr_text = "ldap server busy";
 155                 goto return_results;
 156         default:
 157                 rs->sr_err = LDAP_OTHER;
 158                 rs->sr_text = "internal error";
 159                 goto return_results;
 160         }
 161
 162         p = ei->bei_e;
 163         if ( p ) {
 164                 if ( !bvmatch( &pdn, &p->e_nname ) ) {
 165                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 166                                 op->o_tmpmemctx );
 167                         rs->sr_ref = is_entry_referral( p )
 168                                 ? get_entry_referrals( op, p )
 169                                 : NULL;
 170                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 171                         p = NULL;
 172                         Debug( LDAP_DEBUG_TRACE,
 173                                 LDAP_XSTRING(bdb_add) ": parent "
 174                                 "does not exist\n", 0, 0, 0 );
 175
 176                         rs->sr_err = LDAP_REFERRAL;
 177                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 178                         goto return_results;
 179                 }
 180
 181                 rs->sr_err = access_allowed( op, p,
 182                         children, NULL, ACL_WADD, NULL );
 183
 184                 if ( ! rs->sr_err ) {
 185                         switch( opinfo.boi_err ) {
 186                         case DB_LOCK_DEADLOCK:
 187                         case DB_LOCK_NOTGRANTED:
 188                                 goto retry;
 189                         }
 190
 191                         Debug( LDAP_DEBUG_TRACE,
 192                                 LDAP_XSTRING(bdb_add) ": no write access to parent\n",
 193                                 0, 0, 0 );
 194                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 195                         rs->sr_text = "no write access to parent";
 196                         goto return_results;;
 197                 }
 198
 199 #ifdef BDB_SUBENTRIES
 200                 if ( is_entry_subentry( p ) ) {
 201                         /* parent is a subentry, don't allow add */
 202                         Debug( LDAP_DEBUG_TRACE,
 203                                 LDAP_XSTRING(bdb_add) ": parent is subentry\n",
 204                                 0, 0, 0 );
 205                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 206                         rs->sr_text = "parent is a subentry";
 207                         goto return_results;;
 208                 }
 209 #endif
 210                 if ( is_entry_alias( p ) ) {
 211                         /* parent is an alias, don't allow add */
 212                         Debug( LDAP_DEBUG_TRACE,
 213                                 LDAP_XSTRING(bdb_add) ": parent is alias\n",
 214                                 0, 0, 0 );
 215                         rs->sr_err = LDAP_ALIAS_PROBLEM;
 216                         rs->sr_text = "parent is an alias";
 217                         goto return_results;;
 218                 }
 219
 220                 if ( is_entry_referral( p ) ) {
 221                         /* parent is a referral, don't allow add */
 222                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
 223                                 op->o_tmpmemctx );
 224                         rs->sr_ref = get_entry_referrals( op, p );
 225                         bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 226                         p = NULL;
 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                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
 233                         goto return_results;
 234                 }
 235
 236 #ifdef BDB_SUBENTRIES
 237                 if ( subentry ) {
 238                         /* FIXME: */
 239                         /* parent must be an administrative point of the required kind */
 240                 }
 241 #endif
 242
 243                 /* free parent and reader lock */
 244                 bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, p );
 245                 p = NULL;
 246
 247         } else {
 248                 /*
 249                  * no parent!
 250                  *  if not attempting to add entry at suffix or with parent ""
 251                  */
 252                 if ((( !be_isroot( op ) && !be_shadow_update(op) )
 253                         || pdn.bv_len > 0 ) && !is_entry_glue( op->oq_add.rs_e ))
 254                 {
 255                         Debug( LDAP_DEBUG_TRACE,
 256                                 LDAP_XSTRING(bdb_add) ": %s denied\n",
 257                                 pdn.bv_len == 0 ? "suffix" : "entry at root",
 258                                 0, 0 );
 259                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 260                         goto return_results;
 261                 }
 262         }
 263
 264         if ( get_assert( op ) &&
 265                 ( test_filter( op, op->oq_add.rs_e, get_assertion( op ))
 266                         != LDAP_COMPARE_TRUE ))
 267         {
 268                 rs->sr_err = LDAP_ASSERTION_FAILED;
 269                 goto return_results;
 270         }
 271
 272         rs->sr_err = access_allowed( op, op->oq_add.rs_e,
 273                 entry, NULL, ACL_WADD, NULL );
 274
 275         if ( ! rs->sr_err ) {
 276                 switch( opinfo.boi_err ) {
 277                 case DB_LOCK_DEADLOCK:
 278                 case DB_LOCK_NOTGRANTED:
 279                         goto retry;
 280                 }
 281
 282                 Debug( LDAP_DEBUG_TRACE,
 283                         LDAP_XSTRING(bdb_add) ": no write access to entry\n",
 284                         0, 0, 0 );
 285                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 286                 rs->sr_text = "no write access to entry";
 287                 goto return_results;;
 288         }
 289
 290         /* nested transaction */
 291         rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
 292                 bdb->bi_db_opflags );
 293         rs->sr_text = NULL;
 294         if( rs->sr_err != 0 ) {
 295                 Debug( LDAP_DEBUG_TRACE,
 296                         LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: "
 297                         "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
 298                 rs->sr_err = LDAP_OTHER;
 299                 rs->sr_text = "internal error";
 300                 goto return_results;
 301         }
 302
 303         /* dn2id index */
 304         rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->oq_add.rs_e );
 305         if ( rs->sr_err != 0 ) {
 306                 Debug( LDAP_DEBUG_TRACE,
 307                         LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n",
 308                         db_strerror(rs->sr_err), rs->sr_err, 0 );
 309
 310                 switch( rs->sr_err ) {
 311                 case DB_LOCK_DEADLOCK:
 312                 case DB_LOCK_NOTGRANTED:
 313                         goto retry;
 314                 case DB_KEYEXIST:
 315                         rs->sr_err = LDAP_ALREADY_EXISTS;
 316                         break;
 317                 default:
 318                         rs->sr_err = LDAP_OTHER;
 319                 }
 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         /* 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         if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
 357                 rs->sr_err = LDAP_OTHER;
 358                 rs->sr_text = "txn_commit(2) failed";
 359                 goto return_results;
 360         }
 361
 362         /* post-read */
 363         if( op->o_postread ) {
 364                 if( postread_ctrl == NULL ) {
 365                         postread_ctrl = &ctrls[num_ctrls++];
 366                         ctrls[num_ctrls] = NULL;
 367                 }
 368                 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
 369                         &slap_post_read_bv, postread_ctrl ) )
 370                 {
 371                         Debug( LDAP_DEBUG_TRACE,
 372                                 "<=- " LDAP_XSTRING(bdb_add) ": post-read "
 373                                 "failed!\n", 0, 0, 0 );
 374                         goto return_results;
 375                 }
 376         }
 377
 378         if ( op->o_noop ) {
 379                 if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
 380                         rs->sr_text = "txn_abort (no-op) failed";
 381                 } else {
 382                         rs->sr_err = LDAP_X_NO_OPERATION;
 383                         ltid = NULL;
 384                         goto return_results;
 385                 }
 386
 387         } else {
 388                 struct berval nrdn;
 389                 Entry *e = entry_dup( op->ora_e );
 390
 391                 /* pick the RDN if not suffix; otherwise pick the entire DN */
 392                 if (pdn.bv_len) {
 393                         nrdn.bv_val = e->e_nname.bv_val;
 394                         nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1;
 395                 } else {
 396                         nrdn = e->e_nname;
 397                 }
 398
 399                 bdb_cache_add( bdb, ei, e, &nrdn, locker );
 400
 401                 if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
 402                         rs->sr_text = "txn_commit failed";
 403                 } else {
 404                         rs->sr_err = LDAP_SUCCESS;
 405                 }
 406         }
 407
 408         ltid = NULL;
 409         op->o_private = NULL;
 410
 411         if ( rs->sr_err != LDAP_SUCCESS ) {
 412                 Debug( LDAP_DEBUG_TRACE,
 413                         LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n",
 414                         rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
 415                 rs->sr_err = LDAP_OTHER;
 416                 goto return_results;
 417         }
 418
 419         Debug(LDAP_DEBUG_TRACE,
 420                 LDAP_XSTRING(bdb_add) ": added%s id=%08lx dn=\"%s\"\n",
 421                 op->o_noop ? " (no-op)" : "",
 422                 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
 423
 424         rs->sr_text = NULL;
 425         if( num_ctrls ) rs->sr_ctrls = ctrls;
 426
 427 return_results:
 428         send_ldap_result( op, rs );
 429         if ( !SLAP_SHADOW( op->o_bd ))
 430                 slap_graduate_commit_csn( op );
 431
 432         if( ltid != NULL ) {
 433                 TXN_ABORT( ltid );
 434         }
 435         op->o_private = NULL;
 436
 437         if( postread_ctrl != NULL ) {
 438                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
 439                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
 440         }
 441
 442         if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
 443                 ldap_pvt_thread_yield();
 444                 TXN_CHECKPOINT( bdb->bi_dbenv,
 445                         bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
 446         }
 447         return rs->sr_err;
 448 }