git.sur5r.net Git - openldap/blob - servers/slapd/back-ldbm/add.c

   1 /* add.c - ldap ldbm back-end add routine */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/socket.h>
  13 #include <ac/string.h>
  14
  15 #include "slap.h"
  16 #include "back-ldbm.h"
  17 #include "proto-back-ldbm.h"
  18
  19 int
  20 ldbm_back_add(
  21     Operation   *op,
  22     SlapReply   *rs )
  23 {
  24         struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
  25         struct berval   pdn;
  26         Entry           *p = NULL;
  27         ID               id = NOID;
  28         AttributeDescription *children = slap_schema.si_ad_children;
  29         AttributeDescription *entry = slap_schema.si_ad_entry;
  30         char textbuf[SLAP_TEXT_BUFLEN];
  31         size_t textlen = sizeof textbuf;
  32 #ifdef LDBM_SUBENTRIES
  33         int subentry;
  34 #endif
  35
  36 #ifdef NEW_LOGGING
  37         LDAP_LOG( BACK_LDBM, ENTRY, "ldbm_back_add: %s\n", op->o_req_dn.bv_val, 0, 0 );
  38 #else
  39         Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_add: %s\n", op->o_req_dn.bv_val, 0, 0);
  40 #endif
  41
  42 #ifndef LDAP_CACHING
  43         rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e, NULL, &rs->sr_text, textbuf, textlen );
  44 #else /* LDAP_CACHING */
  45         if ( !op->o_caching_on ) {
  46                 rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e, NULL, &rs->sr_text, textbuf, textlen );
  47         } else {
  48                 rs->sr_err = LDAP_SUCCESS;
  49         }
  50 #endif /* LDAP_CACHING */
  51
  52         if ( rs->sr_err != LDAP_SUCCESS ) {
  53 #ifdef NEW_LOGGING
  54                 LDAP_LOG( BACK_LDBM, ERR,
  55                         "ldbm_back_add: entry (%s) failed schema check.\n", op->o_req_dn.bv_val, 0, 0 );
  56 #else
  57                 Debug( LDAP_DEBUG_TRACE, "entry failed schema check: %s\n",
  58                         rs->sr_text, 0, 0 );
  59 #endif
  60
  61                 send_ldap_result( op, rs );
  62 #ifdef LDAP_SYNCREPL
  63                 return rs->sr_err;
  64 #else
  65                 return( -1 );
  66 #endif
  67         }
  68
  69 #ifdef LDBM_SUBENTRIES
  70         subentry = is_entry_subentry( op->oq_add.rs_e );
  71 #endif
  72
  73 #ifdef LDAP_CACHING
  74         if ( !op->o_caching_on ) {
  75 #endif /* LDAP_CACHING */
  76         if ( !access_allowed( op, op->oq_add.rs_e,
  77                                 entry, NULL, ACL_WRITE, NULL ) )
  78         {
  79 #ifdef NEW_LOGGING
  80                 LDAP_LOG( BACK_LDBM, ERR,
  81                         "ldbm_back_add: No write access to entry (%s).\n",
  82                         op->o_req_dn.bv_val, 0, 0 );
  83 #else
  84                 Debug( LDAP_DEBUG_TRACE, "no write access to entry\n", 0,
  85                     0, 0 );
  86 #endif
  87
  88                 send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
  89                     "no write access to entry" );
  90
  91 #ifdef LDAP_SYNCREPL
  92                 return LDAP_INSUFFICIENT_ACCESS;
  93 #else
  94                 return -1;
  95 #endif
  96         }
  97 #ifdef LDAP_CACHING
  98         }
  99 #endif /* LDAP_CACHING */
 100
 101         /* grab giant lock for writing */
 102         ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock);
 103
 104         if ( ( rs->sr_err = dn2id( op->o_bd, &op->o_req_ndn, &id ) ) || id != NOID ) {
 105                 /* if (rs->sr_err) something bad happened to ldbm cache */
 106                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 107                 rs->sr_err = rs->sr_err ? LDAP_OTHER : LDAP_ALREADY_EXISTS;
 108                 send_ldap_result( op, rs );
 109 #ifdef LDAP_SYNCREPL
 110                 return rs->sr_err;
 111 #else
 112                 return( -1 );
 113 #endif
 114         }
 115
 116         /*
 117          * Get the parent dn and see if the corresponding entry exists.
 118          * If the parent does not exist, only allow the "root" user to
 119          * add the entry.
 120          */
 121
 122         if ( be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
 123                 pdn = slap_empty_bv;
 124         } else {
 125                 dnParent( &op->o_req_ndn, &pdn );
 126         }
 127
 128 #ifndef LDAP_CACHING
 129         if( pdn.bv_len )
 130 #else /* LDAP_CACHING */
 131         if( pdn.bv_len && !op->o_caching_on )
 132 #endif /* LDAP_CACHING */
 133         {
 134                 Entry *matched = NULL;
 135
 136                 /* get parent with writer lock */
 137                 if ( (p = dn2entry_w( op->o_bd, &pdn, &matched )) == NULL ) {
 138                         if ( matched != NULL ) {
 139                                 rs->sr_matched = ch_strdup( matched->e_dn );
 140                                 rs->sr_ref = is_entry_referral( matched )
 141                                         ? get_entry_referrals( op, matched )
 142                                         : NULL;
 143                                 cache_return_entry_r( &li->li_cache, matched );
 144
 145                         } else {
 146                                 rs->sr_ref = referral_rewrite( default_referral,
 147                                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 148                         }
 149
 150                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 151
 152 #ifdef NEW_LOGGING
 153                         LDAP_LOG( BACK_LDBM, ERR,
 154                                 "ldbm_back_add: Parent of (%s) does not exist.\n",
 155                                 op->o_req_dn.bv_val, 0, 0 );
 156 #else
 157                         Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
 158                                 0, 0, 0 );
 159 #endif
 160
 161                         rs->sr_text = rs->sr_ref ? "parent is referral" : "parent does not exist";
 162                         rs->sr_err = LDAP_REFERRAL;
 163                         send_ldap_result( op, rs );
 164
 165                         ber_bvarray_free( rs->sr_ref );
 166                         free( (char *)rs->sr_matched );
 167
 168 #ifdef LDAP_SYNCREPL
 169                         return rs->sr_err;
 170 #else
 171                         return -1;
 172 #endif
 173                 }
 174
 175                 if ( ! access_allowed( op, p,
 176                         children, NULL, ACL_WRITE, NULL ) )
 177                 {
 178                         /* free parent and writer lock */
 179                         cache_return_entry_w( &li->li_cache, p );
 180                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 181
 182 #ifdef NEW_LOGGING
 183                         LDAP_LOG( BACK_LDBM, ERR,
 184                                 "ldbm_back_add: No write access to parent (%s).\n",
 185                                 op->o_req_dn.bv_val, 0, 0 );
 186 #else
 187                         Debug( LDAP_DEBUG_TRACE, "no write access to parent\n", 0,
 188                             0, 0 );
 189 #endif
 190
 191                         send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
 192                             "no write access to parent" );
 193
 194 #ifdef LDAP_SYNCREPL
 195                         return LDAP_INSUFFICIENT_ACCESS;
 196 #else
 197                         return -1;
 198 #endif
 199                 }
 200
 201 #ifdef LDBM_SUBENTRIES
 202                 if ( is_entry_subentry( p )) {
 203 #ifdef NEW_LOGGING
 204                         LDAP_LOG( OPERATION, DETAIL1,
 205                                 "bdb_add: parent is subentry\n", 0, 0, 0 );
 206 #else
 207                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 208                                 0, 0, 0 );
 209 #endif
 210                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 211                         rs->sr_text = "parent is a subentry";
 212                         goto return_results;
 213                 }
 214 #endif
 215
 216                 if ( is_entry_alias( p ) ) {
 217                         /* parent is an alias, don't allow add */
 218
 219                         /* free parent and writer lock */
 220                         cache_return_entry_w( &li->li_cache, p );
 221                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 222
 223 #ifdef NEW_LOGGING
 224                         LDAP_LOG(BACK_LDBM, ERR,
 225                                 "ldbm_back_add:  Parent is an alias.\n", 0, 0, 0 );
 226 #else
 227                         Debug( LDAP_DEBUG_TRACE, "parent is alias\n", 0,
 228                             0, 0 );
 229 #endif
 230
 231
 232                         send_ldap_error( op, rs, LDAP_ALIAS_PROBLEM,
 233                             "parent is an alias" );
 234
 235 #ifdef LDAP_SYNCREPL
 236                         return LDAP_ALIAS_PROBLEM;
 237 #else
 238                         return -1;
 239 #endif
 240                 }
 241
 242                 if ( is_entry_referral( p ) ) {
 243                         /* parent is a referral, don't allow add */
 244                         rs->sr_matched = ch_strdup( p->e_dn );
 245                         rs->sr_ref = is_entry_referral( p )
 246                                 ? get_entry_referrals( op, p )
 247                                 : NULL;
 248
 249                         /* free parent and writer lock */
 250                         cache_return_entry_w( &li->li_cache, p );
 251                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 252
 253 #ifdef NEW_LOGGING
 254                         LDAP_LOG( BACK_LDBM, ERR,
 255                                    "ldbm_back_add: Parent is referral.\n", 0, 0, 0 );
 256 #else
 257                         Debug( LDAP_DEBUG_TRACE, "parent is referral\n", 0,
 258                             0, 0 );
 259 #endif
 260                         rs->sr_err = LDAP_REFERRAL;
 261                         send_ldap_result( op, rs );
 262
 263                         ber_bvarray_free( rs->sr_ref );
 264                         free( (char *)rs->sr_matched );
 265 #ifdef LDAP_SYNCREPL
 266                         return rs->sr_err;
 267 #else
 268                         return -1;
 269 #endif
 270                 }
 271
 272 #ifdef LDBM_SUBENTRIES
 273                 if ( subentry ) {
 274                         /* FIXME: */
 275                         /* parent must be an administrative point of the required kind */
 276                 }
 277 #endif
 278
 279         } else {
 280 #ifndef LDAP_CACHING
 281                 if( pdn.bv_val != NULL )
 282 #else /* LDAP_CACHING */
 283                 if( pdn.bv_val != NULL && !op->o_caching_on )
 284 #endif /* LDAP_CACHING */
 285                 {
 286                         assert( *pdn.bv_val == '\0' );
 287                 }
 288
 289                 /* no parent, must be adding entry to root */
 290 #ifndef LDAP_CACHING
 291                 if ( !be_isroot( op->o_bd, &op->o_ndn ) )
 292 #else /* LDAP_CACHING */
 293                 if ( !be_isroot( op->o_bd, &op->o_ndn ) && !op->o_caching_on )
 294 #endif /* LDAP_CACHING */
 295                 {
 296                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv ) || be_isupdate( op->o_bd, &op->o_ndn ) ) {
 297                                 p = (Entry *)&slap_entry_root;
 298
 299                                 rs->sr_err = access_allowed( op, p,
 300                                         children, NULL, ACL_WRITE, NULL );
 301                                 p = NULL;
 302
 303                                 if ( ! rs->sr_err ) {
 304                                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 305
 306 #ifdef NEW_LOGGING
 307                                         LDAP_LOG( BACK_LDBM, ERR,
 308                                                 "ldbm_back_add: No write "
 309                                                 "access to parent (\"\").\n", 0, 0, 0 );
 310 #else
 311                                         Debug( LDAP_DEBUG_TRACE,
 312                                                 "no write access to parent\n",
 313                                                 0, 0, 0 );
 314 #endif
 315
 316                                         send_ldap_error( op, rs,
 317                                                 LDAP_INSUFFICIENT_ACCESS,
 318                                                 "no write access to parent" );
 319
 320 #ifdef LDAP_SYNCREPL
 321                                         return LDAP_INSUFFICIENT_ACCESS;
 322 #else
 323                                         return -1;
 324 #endif
 325                                 }
 326 #ifdef LDAP_SYNCREPL
 327                         } else if ( !is_entry_glue( op->oq_add.rs_e )) {
 328 #else
 329                         } else {
 330 #endif
 331                                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 332
 333 #ifdef NEW_LOGGING
 334                                 LDAP_LOG( BACK_LDBM, ERR,
 335                                            "ldbm_back_add: %s add denied.\n",
 336                                            pdn.bv_val == NULL ? "suffix"
 337                                            : "entry at root", 0, 0 );
 338 #else
 339                                 Debug( LDAP_DEBUG_TRACE, "%s add denied\n",
 340                                                 pdn.bv_val == NULL ? "suffix"
 341                                                 : "entry at root", 0, 0 );
 342 #endif
 343
 344                                 send_ldap_error( op, rs,
 345                                                 LDAP_NO_SUCH_OBJECT, NULL );
 346
 347 #ifdef LDAP_SYNCREPL
 348                                         return LDAP_NO_SUCH_OBJECT;
 349 #else
 350                                         return -1;
 351 #endif
 352                         }
 353                 }
 354
 355 #ifdef LDBM_SUBENTRIES
 356                         if( subentry ) {
 357 #ifdef NEW_LOGGING
 358                                         LDAP_LOG ( OPERATION, DETAIL1,
 359                                                 "bdb_add: no parent, cannot add subentry\n", 0, 0, 0 );
 360 #else
 361                                         Debug( LDAP_DEBUG_TRACE,
 362                                                 "bdb_add: no parent, cannot add subentry\n", 0, 0, 0 );
 363 #endif
 364                                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 365                                         rs->sr_text = "no parent, cannot add subentry";
 366                                         goto return_results;
 367                                 }
 368 #endif
 369
 370         }
 371
 372         if ( next_id( op->o_bd, &op->oq_add.rs_e->e_id ) ) {
 373                 if( p != NULL) {
 374                         /* free parent and writer lock */
 375                         cache_return_entry_w( &li->li_cache, p );
 376                 }
 377
 378                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 379
 380 #ifdef NEW_LOGGING
 381                 LDAP_LOG( BACK_LDBM, ERR,
 382                         "ldbm_back_add: next_id failed.\n", 0, 0, 0 );
 383 #else
 384                 Debug( LDAP_DEBUG_ANY, "ldbm_add: next_id failed\n",
 385                         0, 0, 0 );
 386 #endif
 387
 388                 send_ldap_error( op, rs, LDAP_OTHER,
 389                         "next_id add failed" );
 390
 391 #ifdef LDAP_SYNCREPL
 392                 return LDAP_OTHER;
 393 #else
 394                 return( -1 );
 395 #endif
 396         }
 397
 398         /*
 399          * Try to add the entry to the cache, assign it a new dnid.
 400          */
 401         rs->sr_err = cache_add_entry_rw(&li->li_cache, op->oq_add.rs_e, CACHE_WRITE_LOCK);
 402
 403         if ( rs->sr_err != 0 ) {
 404                 if( p != NULL) {
 405                         /* free parent and writer lock */
 406                         cache_return_entry_w( &li->li_cache, p );
 407                 }
 408
 409                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 410
 411 #ifdef NEW_LOGGING
 412                 LDAP_LOG( BACK_LDBM, ERR,
 413                         "ldbm_back_add: cache_add_entry_lock failed.\n", 0, 0, 0 );
 414 #else
 415                 Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
 416                     0 );
 417 #endif
 418
 419                 rs->sr_text = rs->sr_err > 0 ? NULL : "cache add failed";
 420                 rs->sr_err = rs->sr_err > 0 ? LDAP_ALREADY_EXISTS : LDAP_OTHER;
 421                 send_ldap_result( op, rs );
 422
 423 #ifdef LDAP_SYNCREPL
 424                 return rs->sr_err;
 425 #else
 426                 return( -1 );
 427 #endif
 428         }
 429
 430         rs->sr_err = -1;
 431
 432         /* attribute indexes */
 433         if ( index_entry_add( op, op->oq_add.rs_e ) != LDAP_SUCCESS ) {
 434 #ifdef NEW_LOGGING
 435                 LDAP_LOG( BACK_LDBM, ERR,
 436                         "ldbm_back_add: index_entry_add failed.\n", 0, 0, 0 );
 437 #else
 438                 Debug( LDAP_DEBUG_TRACE, "index_entry_add failed\n", 0,
 439                     0, 0 );
 440 #endif
 441
 442                 send_ldap_error( op, rs, LDAP_OTHER,
 443                         "index generation failed" );
 444
 445                 goto return_results;
 446         }
 447
 448         /* dn2id index */
 449         if ( dn2id_add( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id ) != 0 ) {
 450 #ifdef NEW_LOGGING
 451                 LDAP_LOG( BACK_LDBM, ERR,
 452                         "ldbm_back_add: dn2id_add failed.\n", 0, 0, 0 );
 453 #else
 454                 Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
 455                     0, 0 );
 456 #endif
 457                 /* FIXME: delete attr indices? */
 458
 459                 send_ldap_error( op, rs, LDAP_OTHER,
 460                         "DN index generation failed" );
 461
 462                 goto return_results;
 463         }
 464
 465         /* id2entry index */
 466         if ( id2entry_add( op->o_bd, op->oq_add.rs_e ) != 0 ) {
 467 #ifdef NEW_LOGGING
 468                 LDAP_LOG( BACK_LDBM, ERR,
 469                            "ldbm_back_add: id2entry_add failed.\n", 0, 0, 0 );
 470 #else
 471                 Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
 472                     0, 0 );
 473 #endif
 474
 475                 /* FIXME: delete attr indices? */
 476                 (void) dn2id_delete( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id );
 477
 478                 send_ldap_error( op, rs, LDAP_OTHER,
 479                         "entry store failed" );
 480
 481                 goto return_results;
 482         }
 483
 484         rs->sr_err = LDAP_SUCCESS;
 485         send_ldap_result( op, rs );
 486
 487         /* marks the entry as committed, so it is added to the cache;
 488          * otherwise it is removed from the cache, but not destroyed;
 489          * it will be destroyed by the caller */
 490         cache_entry_commit( op->oq_add.rs_e );
 491
 492 return_results:;
 493         if (p != NULL) {
 494                 /* free parent and writer lock */
 495                 cache_return_entry_w( &li->li_cache, p );
 496         }
 497
 498         if ( rs->sr_err ) {
 499                 /*
 500                  * in case of error, writer lock is freed
 501                  * and entry's private data is destroyed.
 502                  * otherwise, this is done when entry is released
 503                  */
 504                 cache_return_entry_w( &li->li_cache, op->oq_add.rs_e );
 505                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 506         }
 507
 508         return( rs->sr_err );
 509 }