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                         rs->sr_ref = NULL;
 138                         rs->sr_matched = NULL;
 139                         return rs->sr_err;
 140                 }
 141
 142                 if ( ! access_allowed( op, p,
 143                         children, NULL, ACL_WRITE, NULL ) )
 144                 {
 145                         /* free parent and writer lock */
 146                         cache_return_entry_w( &li->li_cache, p );
 147                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 148
 149 #ifdef NEW_LOGGING
 150                         LDAP_LOG( BACK_LDBM, ERR,
 151                                 "ldbm_back_add: No write access to parent (%s).\n",
 152                                 op->o_req_dn.bv_val, 0, 0 );
 153 #else
 154                         Debug( LDAP_DEBUG_TRACE, "no write access to parent\n", 0,
 155                             0, 0 );
 156 #endif
 157
 158                         send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
 159                             "no write access to parent" );
 160
 161                         return LDAP_INSUFFICIENT_ACCESS;
 162                 }
 163
 164 #ifdef LDBM_SUBENTRIES
 165                 if ( is_entry_subentry( p )) {
 166 #ifdef NEW_LOGGING
 167                         LDAP_LOG( OPERATION, DETAIL1,
 168                                 "bdb_add: parent is subentry\n", 0, 0, 0 );
 169 #else
 170                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 171                                 0, 0, 0 );
 172 #endif
 173                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 174                         rs->sr_text = "parent is a subentry";
 175                         goto return_results;
 176                 }
 177 #endif
 178
 179                 if ( is_entry_alias( p ) ) {
 180                         /* parent is an alias, don't allow add */
 181
 182                         /* free parent and writer lock */
 183                         cache_return_entry_w( &li->li_cache, p );
 184                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 185
 186 #ifdef NEW_LOGGING
 187                         LDAP_LOG(BACK_LDBM, ERR,
 188                                 "ldbm_back_add:  Parent is an alias.\n", 0, 0, 0 );
 189 #else
 190                         Debug( LDAP_DEBUG_TRACE, "parent is alias\n", 0,
 191                             0, 0 );
 192 #endif
 193
 194
 195                         send_ldap_error( op, rs, LDAP_ALIAS_PROBLEM,
 196                             "parent is an alias" );
 197
 198                         return LDAP_ALIAS_PROBLEM;
 199                 }
 200
 201                 if ( is_entry_referral( p ) ) {
 202                         /* parent is a referral, don't allow add */
 203                         rs->sr_matched = ch_strdup( p->e_dn );
 204                         rs->sr_ref = is_entry_referral( p )
 205                                 ? get_entry_referrals( op, p )
 206                                 : NULL;
 207
 208                         /* free parent and writer lock */
 209                         cache_return_entry_w( &li->li_cache, p );
 210                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 211
 212 #ifdef NEW_LOGGING
 213                         LDAP_LOG( BACK_LDBM, ERR,
 214                                    "ldbm_back_add: Parent is referral.\n", 0, 0, 0 );
 215 #else
 216                         Debug( LDAP_DEBUG_TRACE, "parent is referral\n", 0,
 217                             0, 0 );
 218 #endif
 219                         rs->sr_err = LDAP_REFERRAL;
 220                         send_ldap_result( op, rs );
 221
 222                         ber_bvarray_free( rs->sr_ref );
 223                         free( (char *)rs->sr_matched );
 224                         rs->sr_ref = NULL;
 225                         rs->sr_matched = NULL;
 226                         return rs->sr_err;
 227                 }
 228
 229 #ifdef LDBM_SUBENTRIES
 230                 if ( subentry ) {
 231                         /* FIXME: */
 232                         /* parent must be an administrative point of the required kind */
 233                 }
 234 #endif
 235
 236         } else {
 237                 if( pdn.bv_val != NULL ) {
 238                         assert( *pdn.bv_val == '\0' );
 239                 }
 240
 241                 /* no parent */
 242                 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv ) ||
 243                         be_isupdate( op->o_bd, &op->o_ndn ) )
 244                 {
 245                         p = (Entry *)&slap_entry_root;
 246
 247                         rs->sr_err = access_allowed( op, p,
 248                                 children, NULL, ACL_WRITE, NULL );
 249                         p = NULL;
 250
 251                         if ( ! rs->sr_err ) {
 252                                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 253
 254 #ifdef NEW_LOGGING
 255                                 LDAP_LOG( BACK_LDBM, ERR,
 256                                         "ldbm_back_add: No write "
 257                                         "access to parent (\"\").\n", 0, 0, 0 );
 258 #else
 259                                 Debug( LDAP_DEBUG_TRACE,
 260                                         "no write access to parent\n", 0, 0, 0 );
 261 #endif
 262
 263                                 send_ldap_error( op, rs,
 264                                         LDAP_INSUFFICIENT_ACCESS,
 265                                         "no write access to parent" );
 266
 267                                 return LDAP_INSUFFICIENT_ACCESS;
 268                         }
 269                 } else if ( !is_entry_glue( op->oq_add.rs_e )) {
 270                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 271
 272 #ifdef NEW_LOGGING
 273                         LDAP_LOG( BACK_LDBM, ERR,
 274                            "ldbm_back_add: %s add denied.\n",
 275                            pdn.bv_val == NULL ? "suffix" : "entry at root", 0, 0 );
 276 #else
 277                         Debug( LDAP_DEBUG_TRACE, "%s add denied\n",
 278                                 pdn.bv_val == NULL ? "suffix" : "entry at root", 0, 0 );
 279 #endif
 280
 281                         send_ldap_error( op, rs, LDAP_NO_SUCH_OBJECT, NULL );
 282                         return LDAP_NO_SUCH_OBJECT;
 283                 }
 284         }
 285
 286         if ( next_id( op->o_bd, &op->oq_add.rs_e->e_id ) ) {
 287                 if( p != NULL) {
 288                         /* free parent and writer lock */
 289                         cache_return_entry_w( &li->li_cache, p );
 290                 }
 291
 292                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 293
 294 #ifdef NEW_LOGGING
 295                 LDAP_LOG( BACK_LDBM, ERR,
 296                         "ldbm_back_add: next_id failed.\n", 0, 0, 0 );
 297 #else
 298                 Debug( LDAP_DEBUG_ANY, "ldbm_add: next_id failed\n",
 299                         0, 0, 0 );
 300 #endif
 301
 302                 send_ldap_error( op, rs, LDAP_OTHER,
 303                         "next_id add failed" );
 304
 305                 return LDAP_OTHER;
 306         }
 307
 308         /*
 309          * Try to add the entry to the cache, assign it a new dnid.
 310          */
 311         rs->sr_err = cache_add_entry_rw(&li->li_cache, op->oq_add.rs_e, CACHE_WRITE_LOCK);
 312
 313         if ( rs->sr_err != 0 ) {
 314                 if( p != NULL) {
 315                         /* free parent and writer lock */
 316                         cache_return_entry_w( &li->li_cache, p );
 317                 }
 318
 319                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 320
 321 #ifdef NEW_LOGGING
 322                 LDAP_LOG( BACK_LDBM, ERR,
 323                         "ldbm_back_add: cache_add_entry_lock failed.\n", 0, 0, 0 );
 324 #else
 325                 Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
 326                     0 );
 327 #endif
 328
 329                 rs->sr_text = rs->sr_err > 0 ? NULL : "cache add failed";
 330                 rs->sr_err = rs->sr_err > 0 ? LDAP_ALREADY_EXISTS : LDAP_OTHER;
 331                 send_ldap_result( op, rs );
 332
 333                 return rs->sr_err;
 334         }
 335
 336         rs->sr_err = -1;
 337
 338         /* attribute indexes */
 339         if ( index_entry_add( op, op->oq_add.rs_e ) != LDAP_SUCCESS ) {
 340 #ifdef NEW_LOGGING
 341                 LDAP_LOG( BACK_LDBM, ERR,
 342                         "ldbm_back_add: index_entry_add failed.\n", 0, 0, 0 );
 343 #else
 344                 Debug( LDAP_DEBUG_TRACE, "index_entry_add failed\n", 0,
 345                     0, 0 );
 346 #endif
 347
 348                 send_ldap_error( op, rs, LDAP_OTHER,
 349                         "index generation failed" );
 350
 351                 goto return_results;
 352         }
 353
 354         /* dn2id index */
 355         if ( dn2id_add( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id ) != 0 ) {
 356 #ifdef NEW_LOGGING
 357                 LDAP_LOG( BACK_LDBM, ERR,
 358                         "ldbm_back_add: dn2id_add failed.\n", 0, 0, 0 );
 359 #else
 360                 Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
 361                     0, 0 );
 362 #endif
 363                 /* FIXME: delete attr indices? */
 364
 365                 send_ldap_error( op, rs, LDAP_OTHER,
 366                         "DN index generation failed" );
 367
 368                 goto return_results;
 369         }
 370
 371         /* id2entry index */
 372         if ( id2entry_add( op->o_bd, op->oq_add.rs_e ) != 0 ) {
 373 #ifdef NEW_LOGGING
 374                 LDAP_LOG( BACK_LDBM, ERR,
 375                            "ldbm_back_add: id2entry_add failed.\n", 0, 0, 0 );
 376 #else
 377                 Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
 378                     0, 0 );
 379 #endif
 380
 381                 /* FIXME: delete attr indices? */
 382                 (void) dn2id_delete( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id );
 383
 384                 send_ldap_error( op, rs, LDAP_OTHER,
 385                         "entry store failed" );
 386
 387                 goto return_results;
 388         }
 389
 390         rs->sr_err = LDAP_SUCCESS;
 391         rs->sr_text = NULL;
 392         send_ldap_result( op, rs );
 393
 394         /* marks the entry as committed, so it is added to the cache;
 395          * otherwise it is removed from the cache, but not destroyed;
 396          * it will be destroyed by the caller */
 397         cache_entry_commit( op->oq_add.rs_e );
 398
 399 return_results:;
 400         if (p != NULL) {
 401                 /* free parent and writer lock */
 402                 cache_return_entry_w( &li->li_cache, p );
 403         }
 404
 405         if ( rs->sr_err ) {
 406                 /*
 407                  * in case of error, writer lock is freed
 408                  * and entry's private data is destroyed.
 409                  * otherwise, this is done when entry is released
 410                  */
 411                 cache_return_entry_w( &li->li_cache, op->oq_add.rs_e );
 412                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 413         }
 414
 415         return( rs->sr_err );
 416 }