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

   1 /* add.c - ldap ldbm back-end add routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2004 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
  21 #include <ac/socket.h>
  22 #include <ac/string.h>
  23
  24 #include "slap.h"
  25 #include "back-ldbm.h"
  26 #include "proto-back-ldbm.h"
  27
  28 int
  29 ldbm_back_add(
  30     Operation   *op,
  31     SlapReply   *rs )
  32 {
  33         struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
  34         struct berval   pdn;
  35         Entry           *p = NULL;
  36         ID               id = NOID;
  37         AttributeDescription *children = slap_schema.si_ad_children;
  38         AttributeDescription *entry = slap_schema.si_ad_entry;
  39         char textbuf[SLAP_TEXT_BUFLEN];
  40         size_t textlen = sizeof textbuf;
  41 #ifdef LDBM_SUBENTRIES
  42         int subentry;
  43 #endif
  44
  45 #ifdef NEW_LOGGING
  46         LDAP_LOG( BACK_LDBM, ENTRY, "ldbm_back_add: %s\n",
  47                 op->o_req_dn.bv_val, 0, 0 );
  48 #else
  49         Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_add: %s\n",
  50                 op->o_req_dn.bv_val, 0, 0);
  51 #endif
  52
  53         rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e, NULL,
  54                 &rs->sr_text, textbuf, textlen );
  55
  56         if ( rs->sr_err != LDAP_SUCCESS ) {
  57 #ifdef NEW_LOGGING
  58                 LDAP_LOG( BACK_LDBM, ERR,
  59                         "ldbm_back_add: entry (%s) failed schema check.\n",
  60                         op->o_req_dn.bv_val, 0, 0 );
  61 #else
  62                 Debug( LDAP_DEBUG_TRACE, "entry failed schema check: %s\n",
  63                         rs->sr_text, 0, 0 );
  64 #endif
  65
  66                 send_ldap_result( op, rs );
  67                 return rs->sr_err;
  68         }
  69
  70 #ifdef LDBM_SUBENTRIES
  71         subentry = is_entry_subentry( op->oq_add.rs_e );
  72 #endif
  73
  74         if ( !access_allowed( op, op->oq_add.rs_e,
  75                                 entry, NULL, ACL_WRITE, NULL ) )
  76         {
  77 #ifdef NEW_LOGGING
  78                 LDAP_LOG( BACK_LDBM, ERR,
  79                         "ldbm_back_add: No write access to entry (%s).\n",
  80                         op->o_req_dn.bv_val, 0, 0 );
  81 #else
  82                 Debug( LDAP_DEBUG_TRACE, "no write access to entry\n", 0,
  83                     0, 0 );
  84 #endif
  85
  86                 send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
  87                     "no write access to entry" );
  88
  89                 return LDAP_INSUFFICIENT_ACCESS;
  90         }
  91
  92         /* grab giant lock for writing */
  93         ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock);
  94
  95         rs->sr_err = dn2id( op->o_bd, &op->o_req_ndn, &id );
  96         if ( rs->sr_err || id != NOID ) {
  97                 /* if (rs->sr_err) something bad happened to ldbm cache */
  98                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
  99                 rs->sr_err = rs->sr_err ? LDAP_OTHER : LDAP_ALREADY_EXISTS;
 100                 send_ldap_result( op, rs );
 101                 return rs->sr_err;
 102         }
 103
 104         /*
 105          * Get the parent dn and see if the corresponding entry exists.
 106          * If the parent does not exist, only allow the "root" user to
 107          * add the entry.
 108          */
 109
 110         if ( be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
 111                 pdn = slap_empty_bv;
 112         } else {
 113                 dnParent( &op->o_req_ndn, &pdn );
 114         }
 115
 116         if( pdn.bv_len ) {
 117                 Entry *matched = NULL;
 118
 119                 /* get parent with writer lock */
 120                 if ( (p = dn2entry_w( op->o_bd, &pdn, &matched )) == NULL ) {
 121                         if ( matched != NULL ) {
 122                                 rs->sr_matched = ch_strdup( matched->e_dn );
 123                                 rs->sr_ref = is_entry_referral( matched )
 124                                         ? get_entry_referrals( op, matched )
 125                                         : NULL;
 126                                 cache_return_entry_r( &li->li_cache, matched );
 127
 128                         } else {
 129                                 rs->sr_ref = referral_rewrite( default_referral,
 130                                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 131                         }
 132
 133                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 134
 135 #ifdef NEW_LOGGING
 136                         LDAP_LOG( BACK_LDBM, ERR,
 137                                 "ldbm_back_add: Parent of (%s) does not exist.\n",
 138                                 op->o_req_dn.bv_val, 0, 0 );
 139 #else
 140                         Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
 141                                 0, 0, 0 );
 142 #endif
 143
 144                         rs->sr_text = rs->sr_ref
 145                                 ? "parent is referral" : "parent does not exist";
 146                         rs->sr_err = LDAP_REFERRAL;
 147                         send_ldap_result( op, rs );
 148
 149                         ber_bvarray_free( rs->sr_ref );
 150                         free( (char *)rs->sr_matched );
 151                         rs->sr_ref = NULL;
 152                         rs->sr_matched = NULL;
 153                         return rs->sr_err;
 154                 }
 155
 156                 if ( ! access_allowed( op, p, children, NULL, ACL_WRITE, NULL ) ) {
 157                         /* free parent and writer lock */
 158                         cache_return_entry_w( &li->li_cache, p );
 159                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 160
 161 #ifdef NEW_LOGGING
 162                         LDAP_LOG( BACK_LDBM, ERR,
 163                                 "ldbm_back_add: No write access to parent (%s).\n",
 164                                 op->o_req_dn.bv_val, 0, 0 );
 165 #else
 166                         Debug( LDAP_DEBUG_TRACE, "no write access to parent\n", 0,
 167                             0, 0 );
 168 #endif
 169
 170                         send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
 171                             "no write access to parent" );
 172
 173                         return LDAP_INSUFFICIENT_ACCESS;
 174                 }
 175
 176 #ifdef LDBM_SUBENTRIES
 177                 if ( is_entry_subentry( p )) {
 178 #ifdef NEW_LOGGING
 179                         LDAP_LOG( OPERATION, DETAIL1,
 180                                 "bdb_add: parent is subentry\n", 0, 0, 0 );
 181 #else
 182                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 183                                 0, 0, 0 );
 184 #endif
 185                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 186                         rs->sr_text = "parent is a subentry";
 187                         goto return_results;
 188                 }
 189 #endif
 190
 191                 if ( is_entry_alias( p ) ) {
 192                         /* parent is an alias, don't allow add */
 193
 194                         /* free parent and writer lock */
 195                         cache_return_entry_w( &li->li_cache, p );
 196                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 197
 198 #ifdef NEW_LOGGING
 199                         LDAP_LOG(BACK_LDBM, ERR,
 200                                 "ldbm_back_add:  Parent is an alias.\n", 0, 0, 0 );
 201 #else
 202                         Debug( LDAP_DEBUG_TRACE, "parent is alias\n", 0,
 203                             0, 0 );
 204 #endif
 205
 206                         send_ldap_error( op, rs, LDAP_ALIAS_PROBLEM,
 207                             "parent is an alias" );
 208
 209                         return LDAP_ALIAS_PROBLEM;
 210                 }
 211
 212                 if ( is_entry_referral( p ) ) {
 213                         /* parent is a referral, don't allow add */
 214                         rs->sr_matched = ch_strdup( p->e_dn );
 215                         rs->sr_ref = is_entry_referral( p )
 216                                 ? get_entry_referrals( op, p )
 217                                 : NULL;
 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 referral.\n", 0, 0, 0 );
 226 #else
 227                         Debug( LDAP_DEBUG_TRACE, "parent is referral\n", 0,
 228                             0, 0 );
 229 #endif
 230                         rs->sr_err = LDAP_REFERRAL;
 231                         send_ldap_result( op, rs );
 232
 233                         ber_bvarray_free( rs->sr_ref );
 234                         free( (char *)rs->sr_matched );
 235                         rs->sr_ref = NULL;
 236                         rs->sr_matched = NULL;
 237                         return rs->sr_err;
 238                 }
 239
 240 #ifdef LDBM_SUBENTRIES
 241                 if ( subentry ) {
 242                         /* FIXME: */
 243                         /* parent must be an administrative point of the required kind */
 244                 }
 245 #endif
 246
 247         } else {
 248                 assert( pdn.bv_val == NULL || *pdn.bv_val == '\0' );
 249
 250                 if (( !be_isroot(op) && !be_shadow_update(op) )
 251                         && !is_entry_glue( op->oq_add.rs_e ))
 252                 {
 253                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 254
 255 #ifdef NEW_LOGGING
 256                         LDAP_LOG( BACK_LDBM, ERR,
 257                            "ldbm_back_add: %s add denied.\n",
 258                            pdn.bv_val == NULL ? "suffix" : "entry at root", 0, 0 );
 259 #else
 260                         Debug( LDAP_DEBUG_TRACE, "%s add denied\n",
 261                                 pdn.bv_val == NULL ? "suffix" : "entry at root", 0, 0 );
 262 #endif
 263
 264                         send_ldap_error( op, rs, LDAP_NO_SUCH_OBJECT, NULL );
 265                         return LDAP_NO_SUCH_OBJECT;
 266                 }
 267         }
 268
 269         if ( next_id( op->o_bd, &op->oq_add.rs_e->e_id ) ) {
 270                 if( p != NULL) {
 271                         /* free parent and writer lock */
 272                         cache_return_entry_w( &li->li_cache, p );
 273                 }
 274
 275                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 276
 277 #ifdef NEW_LOGGING
 278                 LDAP_LOG( BACK_LDBM, ERR,
 279                         "ldbm_back_add: next_id failed.\n", 0, 0, 0 );
 280 #else
 281                 Debug( LDAP_DEBUG_ANY, "ldbm_add: next_id failed\n",
 282                         0, 0, 0 );
 283 #endif
 284
 285                 send_ldap_error( op, rs, LDAP_OTHER,
 286                         "next_id add failed" );
 287
 288                 return LDAP_OTHER;
 289         }
 290
 291         /*
 292          * Try to add the entry to the cache, assign it a new dnid.
 293          */
 294         rs->sr_err = cache_add_entry_rw( &li->li_cache, op->oq_add.rs_e,
 295                 CACHE_WRITE_LOCK );
 296
 297         if ( rs->sr_err != 0 ) {
 298                 if( p != NULL) {
 299                         /* free parent and writer lock */
 300                         cache_return_entry_w( &li->li_cache, p );
 301                 }
 302
 303                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 304
 305 #ifdef NEW_LOGGING
 306                 LDAP_LOG( BACK_LDBM, ERR,
 307                         "ldbm_back_add: cache_add_entry_lock failed.\n", 0, 0, 0 );
 308 #else
 309                 Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
 310                     0 );
 311 #endif
 312
 313                 rs->sr_text = rs->sr_err > 0 ? NULL : "cache add failed";
 314                 rs->sr_err = rs->sr_err > 0 ? LDAP_ALREADY_EXISTS : LDAP_OTHER;
 315                 send_ldap_result( op, rs );
 316
 317                 return rs->sr_err;
 318         }
 319
 320         rs->sr_err = -1;
 321
 322         /* attribute indexes */
 323         if ( index_entry_add( op, op->oq_add.rs_e ) != LDAP_SUCCESS ) {
 324 #ifdef NEW_LOGGING
 325                 LDAP_LOG( BACK_LDBM, ERR,
 326                         "ldbm_back_add: index_entry_add failed.\n", 0, 0, 0 );
 327 #else
 328                 Debug( LDAP_DEBUG_TRACE, "index_entry_add failed\n", 0,
 329                     0, 0 );
 330 #endif
 331
 332                 send_ldap_error( op, rs, LDAP_OTHER,
 333                         "index generation failed" );
 334
 335                 goto return_results;
 336         }
 337
 338         /* dn2id index */
 339         if ( dn2id_add( op->o_bd, &op->oq_add.rs_e->e_nname,
 340                 op->oq_add.rs_e->e_id ) != 0 )
 341         {
 342 #ifdef NEW_LOGGING
 343                 LDAP_LOG( BACK_LDBM, ERR,
 344                         "ldbm_back_add: dn2id_add failed.\n", 0, 0, 0 );
 345 #else
 346                 Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
 347                     0, 0 );
 348 #endif
 349                 /* FIXME: delete attr indices? */
 350
 351                 send_ldap_error( op, rs, LDAP_OTHER,
 352                         "DN index generation failed" );
 353
 354                 goto return_results;
 355         }
 356
 357         /* id2entry index */
 358         if ( id2entry_add( op->o_bd, op->oq_add.rs_e ) != 0 ) {
 359 #ifdef NEW_LOGGING
 360                 LDAP_LOG( BACK_LDBM, ERR,
 361                            "ldbm_back_add: id2entry_add failed.\n", 0, 0, 0 );
 362 #else
 363                 Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
 364                     0, 0 );
 365 #endif
 366
 367                 /* FIXME: delete attr indices? */
 368                 (void) dn2id_delete( op->o_bd, &op->oq_add.rs_e->e_nname,
 369                         op->oq_add.rs_e->e_id );
 370
 371                 send_ldap_error( op, rs, LDAP_OTHER,
 372                         "entry store failed" );
 373
 374                 goto return_results;
 375         }
 376
 377         rs->sr_err = LDAP_SUCCESS;
 378         rs->sr_text = NULL;
 379         send_ldap_result( op, rs );
 380
 381         /* marks the entry as committed, so it is added to the cache;
 382          * otherwise it is removed from the cache, but not destroyed;
 383          * it will be destroyed by the caller */
 384         cache_entry_commit( op->oq_add.rs_e );
 385
 386 return_results:;
 387         if (p != NULL) {
 388                 /* free parent and writer lock */
 389                 cache_return_entry_w( &li->li_cache, p );
 390         }
 391
 392         if ( rs->sr_err ) {
 393                 /*
 394                  * in case of error, writer lock is freed
 395                  * and entry's private data is destroyed.
 396                  * otherwise, this is done when entry is released
 397                  */
 398                 cache_return_entry_w( &li->li_cache, op->oq_add.rs_e );
 399                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 400         }
 401
 402         return( rs->sr_err );
 403 }