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 1998-2003 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", op->o_req_dn.bv_val, 0, 0 );
  47 #else
  48         Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_add: %s\n", op->o_req_dn.bv_val, 0, 0);
  49 #endif
  50
  51         rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e, NULL, &rs->sr_text, textbuf, textlen );
  52
  53         if ( rs->sr_err != LDAP_SUCCESS ) {
  54 #ifdef NEW_LOGGING
  55                 LDAP_LOG( BACK_LDBM, ERR,
  56                         "ldbm_back_add: entry (%s) failed schema check.\n", op->o_req_dn.bv_val, 0, 0 );
  57 #else
  58                 Debug( LDAP_DEBUG_TRACE, "entry failed schema check: %s\n",
  59                         rs->sr_text, 0, 0 );
  60 #endif
  61
  62                 send_ldap_result( op, rs );
  63                 return rs->sr_err;
  64         }
  65
  66 #ifdef LDBM_SUBENTRIES
  67         subentry = is_entry_subentry( op->oq_add.rs_e );
  68 #endif
  69
  70         if ( !access_allowed( op, op->oq_add.rs_e,
  71                                 entry, NULL, ACL_WRITE, NULL ) )
  72         {
  73 #ifdef NEW_LOGGING
  74                 LDAP_LOG( BACK_LDBM, ERR,
  75                         "ldbm_back_add: No write access to entry (%s).\n",
  76                         op->o_req_dn.bv_val, 0, 0 );
  77 #else
  78                 Debug( LDAP_DEBUG_TRACE, "no write access to entry\n", 0,
  79                     0, 0 );
  80 #endif
  81
  82                 send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
  83                     "no write access to entry" );
  84
  85                 return LDAP_INSUFFICIENT_ACCESS;
  86         }
  87
  88         /* grab giant lock for writing */
  89         ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock);
  90
  91         if ( ( rs->sr_err = dn2id( op->o_bd, &op->o_req_ndn, &id ) ) || id != NOID ) {
  92                 /* if (rs->sr_err) something bad happened to ldbm cache */
  93                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
  94                 rs->sr_err = rs->sr_err ? LDAP_OTHER : LDAP_ALREADY_EXISTS;
  95                 send_ldap_result( op, rs );
  96                 return rs->sr_err;
  97         }
  98
  99         /*
 100          * Get the parent dn and see if the corresponding entry exists.
 101          * If the parent does not exist, only allow the "root" user to
 102          * add the entry.
 103          */
 104
 105         if ( be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
 106                 pdn = slap_empty_bv;
 107         } else {
 108                 dnParent( &op->o_req_ndn, &pdn );
 109         }
 110
 111         if( pdn.bv_len ) {
 112                 Entry *matched = NULL;
 113
 114                 /* get parent with writer lock */
 115                 if ( (p = dn2entry_w( op->o_bd, &pdn, &matched )) == NULL ) {
 116                         if ( matched != NULL ) {
 117                                 rs->sr_matched = ch_strdup( matched->e_dn );
 118                                 rs->sr_ref = is_entry_referral( matched )
 119                                         ? get_entry_referrals( op, matched )
 120                                         : NULL;
 121                                 cache_return_entry_r( &li->li_cache, matched );
 122
 123                         } else {
 124                                 rs->sr_ref = referral_rewrite( default_referral,
 125                                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 126                         }
 127
 128                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 129
 130 #ifdef NEW_LOGGING
 131                         LDAP_LOG( BACK_LDBM, ERR,
 132                                 "ldbm_back_add: Parent of (%s) does not exist.\n",
 133                                 op->o_req_dn.bv_val, 0, 0 );
 134 #else
 135                         Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
 136                                 0, 0, 0 );
 137 #endif
 138
 139                         rs->sr_text = rs->sr_ref ? "parent is referral" : "parent does not exist";
 140                         rs->sr_err = LDAP_REFERRAL;
 141                         send_ldap_result( op, rs );
 142
 143                         ber_bvarray_free( rs->sr_ref );
 144                         free( (char *)rs->sr_matched );
 145                         rs->sr_ref = NULL;
 146                         rs->sr_matched = NULL;
 147                         return rs->sr_err;
 148                 }
 149
 150                 if ( ! access_allowed( op, p,
 151                         children, NULL, ACL_WRITE, NULL ) )
 152                 {
 153                         /* free parent and writer lock */
 154                         cache_return_entry_w( &li->li_cache, p );
 155                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 156
 157 #ifdef NEW_LOGGING
 158                         LDAP_LOG( BACK_LDBM, ERR,
 159                                 "ldbm_back_add: No write access to parent (%s).\n",
 160                                 op->o_req_dn.bv_val, 0, 0 );
 161 #else
 162                         Debug( LDAP_DEBUG_TRACE, "no write access to parent\n", 0,
 163                             0, 0 );
 164 #endif
 165
 166                         send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
 167                             "no write access to parent" );
 168
 169                         return LDAP_INSUFFICIENT_ACCESS;
 170                 }
 171
 172 #ifdef LDBM_SUBENTRIES
 173                 if ( is_entry_subentry( p )) {
 174 #ifdef NEW_LOGGING
 175                         LDAP_LOG( OPERATION, DETAIL1,
 176                                 "bdb_add: parent is subentry\n", 0, 0, 0 );
 177 #else
 178                         Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is subentry\n",
 179                                 0, 0, 0 );
 180 #endif
 181                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
 182                         rs->sr_text = "parent is a subentry";
 183                         goto return_results;
 184                 }
 185 #endif
 186
 187                 if ( is_entry_alias( p ) ) {
 188                         /* parent is an alias, don't allow add */
 189
 190                         /* free parent and writer lock */
 191                         cache_return_entry_w( &li->li_cache, p );
 192                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 193
 194 #ifdef NEW_LOGGING
 195                         LDAP_LOG(BACK_LDBM, ERR,
 196                                 "ldbm_back_add:  Parent is an alias.\n", 0, 0, 0 );
 197 #else
 198                         Debug( LDAP_DEBUG_TRACE, "parent is alias\n", 0,
 199                             0, 0 );
 200 #endif
 201
 202                         send_ldap_error( op, rs, LDAP_ALIAS_PROBLEM,
 203                             "parent is an alias" );
 204
 205                         return LDAP_ALIAS_PROBLEM;
 206                 }
 207
 208                 if ( is_entry_referral( p ) ) {
 209                         /* parent is a referral, don't allow add */
 210                         rs->sr_matched = ch_strdup( p->e_dn );
 211                         rs->sr_ref = is_entry_referral( p )
 212                                 ? get_entry_referrals( op, p )
 213                                 : NULL;
 214
 215                         /* free parent and writer lock */
 216                         cache_return_entry_w( &li->li_cache, p );
 217                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 218
 219 #ifdef NEW_LOGGING
 220                         LDAP_LOG( BACK_LDBM, ERR,
 221                                    "ldbm_back_add: Parent is referral.\n", 0, 0, 0 );
 222 #else
 223                         Debug( LDAP_DEBUG_TRACE, "parent is referral\n", 0,
 224                             0, 0 );
 225 #endif
 226                         rs->sr_err = LDAP_REFERRAL;
 227                         send_ldap_result( op, rs );
 228
 229                         ber_bvarray_free( rs->sr_ref );
 230                         free( (char *)rs->sr_matched );
 231                         rs->sr_ref = NULL;
 232                         rs->sr_matched = NULL;
 233                         return rs->sr_err;
 234                 }
 235
 236 #ifdef LDBM_SUBENTRIES
 237                 if ( subentry ) {
 238                         /* FIXME: */
 239                         /* parent must be an administrative point of the required kind */
 240                 }
 241 #endif
 242
 243         } else {
 244                 assert( pdn.bv_val == NULL || *pdn.bv_val == '\0' );
 245
 246                 if ( !be_isroot( op->o_bd, &op->o_ndn )
 247                         && !is_entry_glue( op->oq_add.rs_e ))
 248                 {
 249                         ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 250
 251 #ifdef NEW_LOGGING
 252                         LDAP_LOG( BACK_LDBM, ERR,
 253                            "ldbm_back_add: %s add denied.\n",
 254                            pdn.bv_val == NULL ? "suffix" : "entry at root", 0, 0 );
 255 #else
 256                         Debug( LDAP_DEBUG_TRACE, "%s add denied\n",
 257                                 pdn.bv_val == NULL ? "suffix" : "entry at root", 0, 0 );
 258 #endif
 259
 260                         send_ldap_error( op, rs, LDAP_NO_SUCH_OBJECT, NULL );
 261                         return LDAP_NO_SUCH_OBJECT;
 262                 }
 263         }
 264
 265         if ( next_id( op->o_bd, &op->oq_add.rs_e->e_id ) ) {
 266                 if( p != NULL) {
 267                         /* free parent and writer lock */
 268                         cache_return_entry_w( &li->li_cache, p );
 269                 }
 270
 271                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 272
 273 #ifdef NEW_LOGGING
 274                 LDAP_LOG( BACK_LDBM, ERR,
 275                         "ldbm_back_add: next_id failed.\n", 0, 0, 0 );
 276 #else
 277                 Debug( LDAP_DEBUG_ANY, "ldbm_add: next_id failed\n",
 278                         0, 0, 0 );
 279 #endif
 280
 281                 send_ldap_error( op, rs, LDAP_OTHER,
 282                         "next_id add failed" );
 283
 284                 return LDAP_OTHER;
 285         }
 286
 287         /*
 288          * Try to add the entry to the cache, assign it a new dnid.
 289          */
 290         rs->sr_err = cache_add_entry_rw(&li->li_cache, op->oq_add.rs_e, CACHE_WRITE_LOCK);
 291
 292         if ( rs->sr_err != 0 ) {
 293                 if( p != NULL) {
 294                         /* free parent and writer lock */
 295                         cache_return_entry_w( &li->li_cache, p );
 296                 }
 297
 298                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 299
 300 #ifdef NEW_LOGGING
 301                 LDAP_LOG( BACK_LDBM, ERR,
 302                         "ldbm_back_add: cache_add_entry_lock failed.\n", 0, 0, 0 );
 303 #else
 304                 Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
 305                     0 );
 306 #endif
 307
 308                 rs->sr_text = rs->sr_err > 0 ? NULL : "cache add failed";
 309                 rs->sr_err = rs->sr_err > 0 ? LDAP_ALREADY_EXISTS : LDAP_OTHER;
 310                 send_ldap_result( op, rs );
 311
 312                 return rs->sr_err;
 313         }
 314
 315         rs->sr_err = -1;
 316
 317         /* attribute indexes */
 318         if ( index_entry_add( op, op->oq_add.rs_e ) != LDAP_SUCCESS ) {
 319 #ifdef NEW_LOGGING
 320                 LDAP_LOG( BACK_LDBM, ERR,
 321                         "ldbm_back_add: index_entry_add failed.\n", 0, 0, 0 );
 322 #else
 323                 Debug( LDAP_DEBUG_TRACE, "index_entry_add failed\n", 0,
 324                     0, 0 );
 325 #endif
 326
 327                 send_ldap_error( op, rs, LDAP_OTHER,
 328                         "index generation failed" );
 329
 330                 goto return_results;
 331         }
 332
 333         /* dn2id index */
 334         if ( dn2id_add( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id ) != 0 ) {
 335 #ifdef NEW_LOGGING
 336                 LDAP_LOG( BACK_LDBM, ERR,
 337                         "ldbm_back_add: dn2id_add failed.\n", 0, 0, 0 );
 338 #else
 339                 Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
 340                     0, 0 );
 341 #endif
 342                 /* FIXME: delete attr indices? */
 343
 344                 send_ldap_error( op, rs, LDAP_OTHER,
 345                         "DN index generation failed" );
 346
 347                 goto return_results;
 348         }
 349
 350         /* id2entry index */
 351         if ( id2entry_add( op->o_bd, op->oq_add.rs_e ) != 0 ) {
 352 #ifdef NEW_LOGGING
 353                 LDAP_LOG( BACK_LDBM, ERR,
 354                            "ldbm_back_add: id2entry_add failed.\n", 0, 0, 0 );
 355 #else
 356                 Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
 357                     0, 0 );
 358 #endif
 359
 360                 /* FIXME: delete attr indices? */
 361                 (void) dn2id_delete( op->o_bd, &op->oq_add.rs_e->e_nname, op->oq_add.rs_e->e_id );
 362
 363                 send_ldap_error( op, rs, LDAP_OTHER,
 364                         "entry store failed" );
 365
 366                 goto return_results;
 367         }
 368
 369         rs->sr_err = LDAP_SUCCESS;
 370         rs->sr_text = NULL;
 371         send_ldap_result( op, rs );
 372
 373         /* marks the entry as committed, so it is added to the cache;
 374          * otherwise it is removed from the cache, but not destroyed;
 375          * it will be destroyed by the caller */
 376         cache_entry_commit( op->oq_add.rs_e );
 377
 378 return_results:;
 379         if (p != NULL) {
 380                 /* free parent and writer lock */
 381                 cache_return_entry_w( &li->li_cache, p );
 382         }
 383
 384         if ( rs->sr_err ) {
 385                 /*
 386                  * in case of error, writer lock is freed
 387                  * and entry's private data is destroyed.
 388                  * otherwise, this is done when entry is released
 389                  */
 390                 cache_return_entry_w( &li->li_cache, op->oq_add.rs_e );
 391                 ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 392         }
 393
 394         return( rs->sr_err );
 395 }