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         rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e, NULL, &rs->sr_text, textbuf, textlen );
  43
  44         if ( rs->sr_err != LDAP_SUCCESS ) {
  45 #ifdef NEW_LOGGING
  46                 LDAP_LOG( BACK_LDBM, ERR,
  47                         "ldbm_back_add: entry (%s) failed schema check.\n", op->o_req_dn.bv_val, 0, 0 );
  48 #else
  49                 Debug( LDAP_DEBUG_TRACE, "entry failed schema check: %s\n",
  50                         rs->sr_text, 0, 0 );
  51 #endif
  52
  53                 send_ldap_result( op, rs );
  54                 return rs->sr_err;
  55         }
  56
  57 #ifdef LDBM_SUBENTRIES
  58         subentry = is_entry_subentry( op->oq_add.rs_e );
  59 #endif
  60
  61         if ( !access_allowed( op, op->oq_add.rs_e,
  62                                 entry, NULL, ACL_WRITE, NULL ) )
  63         {
  64 #ifdef NEW_LOGGING
  65                 LDAP_LOG( BACK_LDBM, ERR,
  66                         "ldbm_back_add: No write access to entry (%s).\n",
  67                         op->o_req_dn.bv_val, 0, 0 );
  68 #else
  69                 Debug( LDAP_DEBUG_TRACE, "no write access to entry\n", 0,
  70                     0, 0 );
  71 #endif
  72
  73                 send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
  74                     "no write access to entry" );
  75
  76                 return LDAP_INSUFFICIENT_ACCESS;
  77         }
  78
  79         /* grab giant lock for writing */
  80         ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock);
  81
  82         if ( ( rs->sr_err = dn2id( op->o_bd, &op->o_req_ndn, &id ) ) || id != NOID ) {
  83                 /* if (rs->sr_err) something bad happened to ldbm cache */
  84                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
  85                 rs->sr_err = rs->sr_err ? LDAP_OTHER : LDAP_ALREADY_EXISTS;
  86                 send_ldap_result( op, rs );
  87                 return rs->sr_err;
  88         }
  89
  90         /*
  91          * Get the parent dn and see if the corresponding entry exists.
  92          * If the parent does not exist, only allow the "root" user to
  93          * add the entry.
  94          */
  95
  96         if ( be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
  97                 pdn = slap_empty_bv;
  98         } else {
  99                 dnParent( &op->o_req_ndn, &pdn );
 100         }
 101
 102         if( pdn.bv_len )
 103         {
 104                 Entry *matched = NULL;
 105
 106                 /* get parent with writer lock */
 107                 if ( (p = dn2entry_w( op->o_bd, &pdn, &matched )) == NULL ) {
 108                         if ( matched != NULL ) {
 109                                 rs->sr_matched = ch_strdup( matched->e_dn );
 110                                 rs->sr_ref = is_entry_referral( matched )
 111                                         ? get_entry_referrals( op, matched )
 112                                         : NULL;
 113                                 cache_return_entry_r( &li->li_cache, matched );
 114
 115                         } else {
 116                                 rs->sr_ref = referral_rewrite( default_referral,
 117                                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 118                         }
 119
 120                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 121
 122 #ifdef NEW_LOGGING
 123                         LDAP_LOG( BACK_LDBM, ERR,
 124                                 "ldbm_back_add: Parent of (%s) does not exist.\n",
 125                                 op->o_req_dn.bv_val, 0, 0 );
 126 #else
 127                         Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
 128                                 0, 0, 0 );
 129 #endif
 130
 131                         rs->sr_text = rs->sr_ref ? "parent is referral" : "parent does not exist";
 132                         rs->sr_err = LDAP_REFERRAL;
 133                         send_ldap_result( op, rs );
 134
 135                         ber_bvarray_free( rs->sr_ref );
 136                         free( (char *)rs->sr_matched );
 137
 138                         return rs->sr_err;
 139                 }
 140
 141                 if ( ! access_allowed( op, p,
 142                         children, NULL, ACL_WRITE, NULL ) )
 143                 {
 144                         /* free parent and writer lock */
 145                         cache_return_entry_w( &li->li_cache, p );
 146                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 147
 148 #ifdef NEW_LOGGING
 149                         LDAP_LOG( BACK_LDBM, ERR,
 150                                 "ldbm_back_add: No write access to parent (%s).\n",
 151                                 op->o_req_dn.bv_val, 0, 0 );
 152 #else
 153                         Debug( LDAP_DEBUG_TRACE, "no write access to parent\n", 0,
 154                             0, 0 );
 155 #endif
 156
 157                         send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
 158                             "no write access to parent" );
 159
 160                         return LDAP_INSUFFICIENT_ACCESS;
 161                 }
 162
 163 #ifdef LDBM_SUBENTRIES
 164                 if ( is_entry_subentry( p )) {
 165 #ifdef NEW_LOGGING
 166                         LDAP_LOG( OPERATION, DETAIL1,
 167                                 "bdb_add: parent is subentry\n", 0, 0, 0 );
 168 #else
 169                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 170                                 0, 0, 0 );
 171 #endif
 172                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 173                         rs->sr_text = "parent is a subentry";
 174                         goto return_results;
 175                 }
 176 #endif
 177
 178                 if ( is_entry_alias( p ) ) {
 179                         /* parent is an alias, don't allow add */
 180
 181                         /* free parent and writer lock */
 182                         cache_return_entry_w( &li->li_cache, p );
 183                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 184
 185 #ifdef NEW_LOGGING
 186                         LDAP_LOG(BACK_LDBM, ERR,
 187                                 "ldbm_back_add:  Parent is an alias.\n", 0, 0, 0 );
 188 #else
 189                         Debug( LDAP_DEBUG_TRACE, "parent is alias\n", 0,
 190                             0, 0 );
 191 #endif
 192
 193
 194                         send_ldap_error( op, rs, LDAP_ALIAS_PROBLEM,
 195                             "parent is an alias" );
 196
 197                         return LDAP_ALIAS_PROBLEM;
 198                 }
 199
 200                 if ( is_entry_referral( p ) ) {
 201                         /* parent is a referral, don't allow add */
 202                         rs->sr_matched = ch_strdup( p->e_dn );
 203                         rs->sr_ref = is_entry_referral( p )
 204                                 ? get_entry_referrals( op, p )
 205                                 : NULL;
 206
 207                         /* free parent and writer lock */
 208                         cache_return_entry_w( &li->li_cache, p );
 209                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 210
 211 #ifdef NEW_LOGGING
 212                         LDAP_LOG( BACK_LDBM, ERR,
 213                                    "ldbm_back_add: Parent is referral.\n", 0, 0, 0 );
 214 #else
 215                         Debug( LDAP_DEBUG_TRACE, "parent is referral\n", 0,
 216                             0, 0 );
 217 #endif
 218                         rs->sr_err = LDAP_REFERRAL;
 219                         send_ldap_result( op, rs );
 220
 221                         ber_bvarray_free( rs->sr_ref );
 222                         free( (char *)rs->sr_matched );
 223                         return rs->sr_err;
 224                 }
 225
 226 #ifdef LDBM_SUBENTRIES
 227                 if ( subentry ) {
 228                         /* FIXME: */
 229                         /* parent must be an administrative point of the required kind */
 230                 }
 231 #endif
 232
 233         } else {
 234                 if( pdn.bv_val != NULL )
 235                 {
 236                         assert( *pdn.bv_val == '\0' );
 237                 }
 238
 239                 /* no parent, must be adding entry to root */
 240                 if ( !be_isroot( op->o_bd, &op->o_ndn ) )
 241                 {
 242                         if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv ) || be_isupdate( op->o_bd, &op->o_ndn ) ) {
 243                                 p = (Entry *)&slap_entry_root;
 244
 245                                 rs->sr_err = access_allowed( op, p,
 246                                         children, NULL, ACL_WRITE, NULL );
 247                                 p = NULL;
 248
 249                                 if ( ! rs->sr_err ) {
 250                                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 251
 252 #ifdef NEW_LOGGING
 253                                         LDAP_LOG( BACK_LDBM, ERR,
 254                                                 "ldbm_back_add: No write "
 255                                                 "access to parent (\"\").\n", 0, 0, 0 );
 256 #else
 257                                         Debug( LDAP_DEBUG_TRACE,
 258                                                 "no write access to parent\n",
 259                                                 0, 0, 0 );
 260 #endif
 261
 262                                         send_ldap_error( op, rs,
 263                                                 LDAP_INSUFFICIENT_ACCESS,
 264                                                 "no write access to parent" );
 265
 266                                         return LDAP_INSUFFICIENT_ACCESS;
 267                                 }
 268                         } else if ( !is_entry_glue( op->oq_add.rs_e )) {
 269                                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 270
 271 #ifdef NEW_LOGGING
 272                                 LDAP_LOG( BACK_LDBM, ERR,
 273                                            "ldbm_back_add: %s add denied.\n",
 274                                            pdn.bv_val == NULL ? "suffix"
 275                                            : "entry at root", 0, 0 );
 276 #else
 277                                 Debug( LDAP_DEBUG_TRACE, "%s add denied\n",
 278                                                 pdn.bv_val == NULL ? "suffix"
 279                                                 : "entry at root", 0, 0 );
 280 #endif
 281
 282                                 send_ldap_error( op, rs,
 283                                                 LDAP_NO_SUCH_OBJECT, NULL );
 284
 285                                         return LDAP_NO_SUCH_OBJECT;
 286                         }
 287                 }
 288
 289 #ifdef LDBM_SUBENTRIES
 290                         if( subentry ) {
 291 #ifdef NEW_LOGGING
 292                                         LDAP_LOG ( OPERATION, DETAIL1,
 293                                                 "bdb_add: no parent, cannot add subentry\n", 0, 0, 0 );
 294 #else
 295                                         Debug( LDAP_DEBUG_TRACE,
 296                                                 "bdb_add: no parent, cannot add subentry\n", 0, 0, 0 );
 297 #endif
 298                                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 299                                         rs->sr_text = "no parent, cannot add subentry";
 300                                         goto return_results;
 301                                 }
 302 #endif
 303
 304         }
 305
 306         if ( next_id( op->o_bd, &op->oq_add.rs_e->e_id ) ) {
 307                 if( p != NULL) {
 308                         /* free parent and writer lock */
 309                         cache_return_entry_w( &li->li_cache, p );
 310                 }
 311
 312                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 313
 314 #ifdef NEW_LOGGING
 315                 LDAP_LOG( BACK_LDBM, ERR,
 316                         "ldbm_back_add: next_id failed.\n", 0, 0, 0 );
 317 #else
 318                 Debug( LDAP_DEBUG_ANY, "ldbm_add: next_id failed\n",
 319                         0, 0, 0 );
 320 #endif
 321
 322                 send_ldap_error( op, rs, LDAP_OTHER,
 323                         "next_id add failed" );
 324
 325                 return LDAP_OTHER;
 326         }
 327
 328         /*
 329          * Try to add the entry to the cache, assign it a new dnid.
 330          */
 331         rs->sr_err = cache_add_entry_rw(&li->li_cache, op->oq_add.rs_e, CACHE_WRITE_LOCK);
 332
 333         if ( rs->sr_err != 0 ) {
 334                 if( p != NULL) {
 335                         /* free parent and writer lock */
 336                         cache_return_entry_w( &li->li_cache, p );
 337                 }
 338
 339                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 340
 341 #ifdef NEW_LOGGING
 342                 LDAP_LOG( BACK_LDBM, ERR,
 343                         "ldbm_back_add: cache_add_entry_lock failed.\n", 0, 0, 0 );
 344 #else
 345                 Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
 346                     0 );
 347 #endif
 348
 349                 rs->sr_text = rs->sr_err > 0 ? NULL : "cache add failed";
 350                 rs->sr_err = rs->sr_err > 0 ? LDAP_ALREADY_EXISTS : LDAP_OTHER;
 351                 send_ldap_result( op, rs );
 352
 353                 return rs->sr_err;
 354         }
 355
 356         rs->sr_err = -1;
 357
 358         /* attribute indexes */
 359         if ( index_entry_add( op, op->oq_add.rs_e ) != LDAP_SUCCESS ) {
 360 #ifdef NEW_LOGGING
 361                 LDAP_LOG( BACK_LDBM, ERR,
 362                         "ldbm_back_add: index_entry_add failed.\n", 0, 0, 0 );
 363 #else
 364                 Debug( LDAP_DEBUG_TRACE, "index_entry_add failed\n", 0,
 365                     0, 0 );
 366 #endif
 367
 368                 send_ldap_error( op, rs, LDAP_OTHER,
 369                         "index generation failed" );
 370
 371                 goto return_results;
 372         }
 373
 374         /* dn2id index */
 375         if ( dn2id_add( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id ) != 0 ) {
 376 #ifdef NEW_LOGGING
 377                 LDAP_LOG( BACK_LDBM, ERR,
 378                         "ldbm_back_add: dn2id_add failed.\n", 0, 0, 0 );
 379 #else
 380                 Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
 381                     0, 0 );
 382 #endif
 383                 /* FIXME: delete attr indices? */
 384
 385                 send_ldap_error( op, rs, LDAP_OTHER,
 386                         "DN index generation failed" );
 387
 388                 goto return_results;
 389         }
 390
 391         /* id2entry index */
 392         if ( id2entry_add( op->o_bd, op->oq_add.rs_e ) != 0 ) {
 393 #ifdef NEW_LOGGING
 394                 LDAP_LOG( BACK_LDBM, ERR,
 395                            "ldbm_back_add: id2entry_add failed.\n", 0, 0, 0 );
 396 #else
 397                 Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
 398                     0, 0 );
 399 #endif
 400
 401                 /* FIXME: delete attr indices? */
 402                 (void) dn2id_delete( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id );
 403
 404                 send_ldap_error( op, rs, LDAP_OTHER,
 405                         "entry store failed" );
 406
 407                 goto return_results;
 408         }
 409
 410         rs->sr_err = LDAP_SUCCESS;
 411         send_ldap_result( op, rs );
 412
 413         /* marks the entry as committed, so it is added to the cache;
 414          * otherwise it is removed from the cache, but not destroyed;
 415          * it will be destroyed by the caller */
 416         cache_entry_commit( op->oq_add.rs_e );
 417
 418 return_results:;
 419         if (p != NULL) {
 420                 /* free parent and writer lock */
 421                 cache_return_entry_w( &li->li_cache, p );
 422         }
 423
 424         if ( rs->sr_err ) {
 425                 /*
 426                  * in case of error, writer lock is freed
 427                  * and entry's private data is destroyed.
 428                  * otherwise, this is done when entry is released
 429                  */
 430                 cache_return_entry_w( &li->li_cache, op->oq_add.rs_e );
 431                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 432         }
 433
 434         return( rs->sr_err );
 435 }