git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb2/modrdn.c

   1 /* modrdn.c - bdb2 backend modrdn routine */
   2
   3 /*
   4  * LDAP v3 newSuperior support.
   5  *
   6  * Copyright 1999, Juan C. Gomez, All rights reserved.
   7  * This software is not subject to any license of Silicon Graphics
   8  * Inc. or Purdue University.
   9  *
  10  * Redistribution and use in source and binary forms are permitted
  11  * without restriction or fee of any kind as long as this notice
  12  * is preserved.
  13  *
  14  */
  15
  16 #include "portable.h"
  17
  18 #include <stdio.h>
  19
  20 #include <ac/string.h>
  21 #include <ac/socket.h>
  22
  23 #include "slap.h"
  24 #include "back-bdb2.h"
  25 #include "proto-back-bdb2.h"
  26
  27 static int
  28 bdb2i_back_modrdn_internal(
  29     BackendDB   *be,
  30     Connection  *conn,
  31     Operation   *op,
  32     char        *dn,
  33     char        *newrdn,
  34     int         deleteoldrdn,
  35     char        *newSuperior
  36 )
  37 {
  38         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
  39         char            *matched = NULL;
  40         char            *p_dn = NULL, *p_ndn = NULL;
  41         char            *new_dn = NULL, *new_ndn = NULL;
  42         char            sep[2];
  43         Entry           *e, *p = NULL;
  44         int                     rc = -1;
  45         /* Added to support LDAP v2 correctly (deleteoldrdn thing) */
  46         char            *new_rdn_val = NULL;    /* Val of new rdn */
  47         char            *new_rdn_type = NULL;   /* Type of new rdn */
  48         char            *old_rdn;               /* Old rdn's attr type & val */
  49         char            *old_rdn_type = NULL;   /* Type of old rdn attr. */
  50         char            *old_rdn_val = NULL;    /* Old rdn attribute value */
  51         struct berval   bv;                     /* Stores new rdn att */
  52         struct berval   *bvals[2];              /* Stores new rdn att */
  53         LDAPMod         mod;                    /* Used to delete old rdn */
  54         /* Added to support newSuperior */
  55         Entry           *np = NULL;     /* newSuperior Entry */
  56         char            *np_dn = NULL;  /* newSuperior dn */
  57         char            *np_ndn = NULL; /* newSuperior ndn */
  58         char            *new_parent_dn = NULL;  /* np_dn, p_dn, or NULL */
  59
  60         Debug( LDAP_DEBUG_TRACE, "==>ldbm_back_modrdn(newSuperior=%s)\n",
  61                (newSuperior ? newSuperior : "NULL"),
  62                0, 0 );
  63
  64         /* get entry with writer lock */
  65         if ( (e = bdb2i_dn2entry_w( be, dn, &matched )) == NULL ) {
  66                 send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT, matched, "" );
  67                 if ( matched != NULL ) {
  68                         free( matched );
  69                 }
  70                 return( -1 );
  71         }
  72
  73 #ifdef SLAPD_CHILD_MODIFICATION_WITH_ENTRY_ACL
  74                 /* check parent for "children" acl */
  75         if ( ! access_allowed( be, conn, op, e,
  76                 "entry", NULL, ACL_WRITE ) )
  77         {
  78                 Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
  79                         0, 0 );
  80                 send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
  81                         "", "" );
  82                 goto return_results;
  83         }
  84 #endif
  85
  86         if ( (p_ndn = dn_parent( be, e->e_ndn )) != NULL ) {
  87                 /* parent + rdn + separator(s) + null */
  88                 if( (p = bdb2i_dn2entry_w( be, p_ndn, &matched )) == NULL) {
  89                         Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
  90                                 0, 0, 0);
  91                         send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
  92                                 "", "");
  93                         goto return_results;
  94                 }
  95
  96 #ifndef SLAPD_CHILD_MODIFICATION_WITH_ENTRY_ACL
  97                 /* check parent for "children" acl */
  98                 if ( ! access_allowed( be, conn, op, p,
  99                         "children", NULL, ACL_WRITE ) )
 100                 {
 101                         Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
 102                                 0, 0 );
 103                         send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
 104                                 "", "" );
 105                         goto return_results;
 106                 }
 107 #endif
 108
 109                 p_dn = dn_parent( be, e->e_dn );
 110
 111                 Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: parent dn=%s\n",
 112                        p_dn, 0, 0 );
 113
 114
 115         } else {
 116                 /* no parent, modrdn entry directly under root */
 117                 if( ! be_isroot( be, op->o_ndn ) ) {
 118                         Debug( LDAP_DEBUG_TRACE, "no parent & not root\n",
 119                                 0, 0, 0);
 120                         send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
 121                                 "", "");
 122                         goto return_results;
 123                 }
 124
 125                 Debug( LDAP_DEBUG_TRACE,
 126                        "ldbm_back_modrdn: no parent!, working on root\n",
 127                        0, 0, 0 );
 128
 129         }
 130
 131         new_parent_dn = p_dn;   /* New Parent unless newSuperior given */
 132
 133         if ( (np_dn = newSuperior) != NULL) {
 134
 135
 136                 Debug( LDAP_DEBUG_TRACE,
 137                        "ldbm_back_modrdn: new parent requested...\n",
 138                        0, 0, 0 );
 139
 140                 np_ndn = dn_normalize_case( ch_strdup( np_dn ) );
 141
 142                 /* newSuperior == oldParent?, if so ==> ERROR */
 143
 144                 /* newSuperior == entry being moved?, if so ==> ERROR */
 145
 146                 /* Get Entry with dn=newSuperior. Does newSuperior exist? */
 147
 148                 if( (np = bdb2i_dn2entry_w( be, np_ndn, &matched )) == NULL) {
 149
 150                         Debug( LDAP_DEBUG_TRACE,
 151                                "ldbm_back_modrdn: newSup(ndn=%s) not here!\n",
 152                                np_ndn, 0, 0);
 153                         send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "",
 154                                           "");
 155                         goto return_results;
 156                 }
 157
 158                 Debug( LDAP_DEBUG_TRACE,
 159                        "ldbm_back_modrdn: wr to new parent OK np=%p, id=%d\n",
 160                        np, np->e_id, 0 );
 161
 162 #ifndef SLAPD_CHILD_MODIFICATION_WITH_ENTRY_ACL
 163                 /* check newSuperior for "children" acl */
 164                 if ( !access_allowed( be, conn, op, np, "children", NULL,
 165                                       ACL_WRITE ) )
 166                 {
 167                         Debug( LDAP_DEBUG_TRACE,
 168                                "ldbm_back_modrdn: no wr to newSup children\n",
 169                                0, 0, 0 );
 170                         send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
 171                                           "", "" );
 172                         goto return_results;
 173                 }
 174 #endif
 175
 176                 Debug( LDAP_DEBUG_TRACE,
 177                        "ldbm_back_modrdn: wr to new parent's children OK\n",
 178                        0, 0 , 0 );
 179
 180
 181                 new_parent_dn = np_dn;
 182
 183         }
 184
 185         /* Build target dn and make sure target entry doesn't exist already. */
 186
 187         build_new_dn( &new_dn, e->e_dn, new_parent_dn, newrdn );
 188
 189
 190         new_ndn = dn_normalize_case( ch_strdup( new_dn ) );
 191
 192         Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: new ndn=%s\n",
 193                new_ndn, 0, 0 );
 194
 195         if ( (bdb2i_dn2id ( be, new_ndn ) ) != NOID ) {
 196                 send_ldap_result( conn, op, LDAP_ALREADY_EXISTS, NULL, NULL );
 197                 goto return_results;
 198         }
 199
 200         /* check for abandon */
 201         ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
 202         if ( op->o_abandon ) {
 203                 ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
 204                 goto return_results;
 205         }
 206         ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
 207
 208         /* add new one */
 209         if ( bdb2i_dn2id_add( be, new_ndn, e->e_id ) != 0 ) {
 210                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
 211                 goto return_results;
 212         }
 213
 214         /* delete old one */
 215         if ( bdb2i_dn2id_delete( be, e->e_ndn ) != 0 ) {
 216                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
 217                 goto return_results;
 218         }
 219
 220         (void) bdb2i_cache_delete_entry( &li->li_cache, e );
 221         free( e->e_dn );
 222         free( e->e_ndn );
 223         e->e_dn = new_dn;
 224         e->e_ndn = new_ndn;
 225
 226         /* Get attribute type and attribute value of our new rdn, we will
 227          * need to add that to our new entry
 228          */
 229
 230         if ( (new_rdn_type = rdn_attr_type( newrdn )) == NULL ) {
 231
 232                 Debug( LDAP_DEBUG_TRACE,
 233                        "ldbm_back_modrdn: can't figure out type of newrdn\n",
 234                        0, 0, 0 );
 235                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
 236                 goto return_results;
 237
 238         }
 239
 240         if ( (new_rdn_val = rdn_attr_value( newrdn )) == NULL ) {
 241
 242                 Debug( LDAP_DEBUG_TRACE,
 243                        "ldbm_back_modrdn: can't figure out val of newrdn\n",
 244                        0, 0, 0 );
 245                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
 246                 goto return_results;
 247
 248         }
 249
 250         Debug( LDAP_DEBUG_TRACE,
 251                "ldbm_back_modrdn: new_rdn_val=%s, new_rdn_type=%s\n",
 252                new_rdn_val, new_rdn_type, 0 );
 253
 254         /* Retrieve the old rdn from the entry's dn */
 255
 256         if ( (old_rdn = dn_rdn( be, dn )) == NULL ) {
 257
 258                 Debug( LDAP_DEBUG_TRACE,
 259                        "ldbm_back_modrdn: can't figure out old_rdn from dn\n",
 260                        0, 0, 0 );
 261                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
 262                 goto return_results;
 263
 264         }
 265
 266         if ( (old_rdn_type = rdn_attr_type( old_rdn )) == NULL ) {
 267
 268                 Debug( LDAP_DEBUG_TRACE,
 269                        "ldbm_back_modrdn: can't figure out the old_rdn type\n",
 270                        0, 0, 0 );
 271                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
 272                 goto return_results;
 273
 274         }
 275
 276         if ( strcasecmp( old_rdn_type, new_rdn_type ) != 0 ) {
 277
 278             /* Not a big deal but we may say something */
 279             Debug( LDAP_DEBUG_TRACE,
 280                    "ldbm_back_modrdn: old_rdn_type=%s, new_rdn_type=%s!\n",
 281                    old_rdn_type, new_rdn_type, 0 );
 282
 283         }
 284
 285         if ( dn_type( old_rdn ) == DN_X500 ) {
 286
 287                 Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: DN_X500\n",
 288                        0, 0, 0 );
 289
 290                 bvals[0] = &bv;         /* Array of bervals */
 291                 bvals[1] = NULL;
 292
 293                 /* Remove old rdn value if required */
 294
 295                 if (deleteoldrdn) {
 296
 297                         /* Get value of old rdn */
 298
 299                         if ((old_rdn_val = rdn_attr_value( old_rdn ))
 300                             == NULL) {
 301
 302                                 Debug( LDAP_DEBUG_TRACE,
 303                                        "ldbm_back_modrdn: can't figure out old_rdn_val from old_rdn\n",
 304                                        0, 0, 0 );
 305                                 send_ldap_result( conn, op,
 306                                                   LDAP_OPERATIONS_ERROR,
 307                                                   "", "" );
 308                                 goto return_results;
 309
 310
 311                         }
 312
 313                         /* Remove old value of rdn as an attribute. */
 314
 315                         bv.bv_val = old_rdn_val;
 316                         bv.bv_len = strlen(old_rdn_val);
 317
 318                         /* No need to normalize old_rdn_type, delete_values()
 319                          * does that for us
 320                          */
 321                         mod.mod_type = old_rdn_type;
 322                         mod.mod_bvalues = bvals;
 323                         mod.mod_op = LDAP_MOD_DELETE;   /* XXX:really needed?*/
 324
 325                         /* Assembly mod structure */
 326
 327                         if ( delete_values( e, &mod, op->o_ndn )
 328                              != LDAP_SUCCESS ) {
 329
 330                                 /* Could not find old_rdn as an attribute or
 331                                  * the old value was not present. Return an
 332                                  * error.
 333                                  */
 334                                 Debug( LDAP_DEBUG_TRACE,
 335                                        "ldbm_back_modrdn: old rdn not found or att type doesn't exist\n",
 336                                        0, 0, 0);
 337                                 send_ldap_result( conn, op,
 338                                                   LDAP_OPERATIONS_ERROR,
 339                                                   "", "");
 340                                 goto return_results;
 341
 342                         }
 343
 344                         Debug( LDAP_DEBUG_TRACE,
 345                                "ldbm_back_modrdn: removed old_rdn_val=%s\n",
 346                                old_rdn_val, 0, 0 );
 347
 348                 }/* if (deleteoldrdn) */
 349
 350                 /* Add new attribute value to the entry.
 351                  */
 352
 353                 bv.bv_val = new_rdn_val;
 354                 bv.bv_len = strlen(new_rdn_val);
 355
 356
 357                 Debug( LDAP_DEBUG_TRACE,
 358                        "ldbm_back_modrdn: adding new rdn attr val =%s\n",
 359                        new_rdn_val, 0, 0 );
 360
 361                 /* No need to normalize new_rdn_type, attr_merge does it */
 362
 363                 attr_merge( e, new_rdn_type, bvals );
 364
 365         } else {
 366
 367
 368                 Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: DNS DN\n",
 369                        0, 0, 0 );
 370                 /* XXXV3: not sure of what to do here */
 371                 Debug( LDAP_DEBUG_TRACE,
 372                        "ldbm_back_modrdn: not fully implemented...\n",
 373                        0, 0, 0 );
 374
 375         }
 376
 377         (void) bdb2i_cache_update_entry( &li->li_cache, e );
 378
 379         /* id2entry index */
 380         if ( bdb2i_id2entry_add( be, e ) != 0 ) {
 381                 entry_free( e );
 382                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
 383                 goto return_results;
 384         }
 385
 386         send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
 387         rc = 0;
 388
 389 return_results:
 390         /* NOTE:
 391          * new_dn and new_ndn are not deallocated because they are used by
 392          * the cache entry.
 393          */
 394         if( p_dn != NULL ) free( p_dn );
 395         if( p_ndn != NULL ) free( p_ndn );
 396
 397         if( matched != NULL ) free( matched );
 398
 399         /* LDAP v2 supporting correct attribute handling. */
 400         if( new_rdn_type != NULL ) free(new_rdn_type);
 401         if( new_rdn_val != NULL ) free(new_rdn_val);
 402         if( old_rdn != NULL ) free(old_rdn);
 403         if( old_rdn_type != NULL ) free(old_rdn_type);
 404         if( old_rdn_val != NULL ) free(old_rdn_val);
 405
 406         /* LDAP v3 Support */
 407         if ( np_dn != NULL ) free( np_dn );
 408         if ( np_ndn != NULL ) free( np_ndn );
 409
 410         if( p != NULL ) {
 411                 /* free parent and writer lock */
 412                 bdb2i_cache_return_entry_w( &li->li_cache, p );
 413
 414         }
 415
 416         /* free entry and writer lock */
 417         bdb2i_cache_return_entry_w( &li->li_cache, e );
 418         return( rc );
 419 }
 420
 421
 422 int
 423 bdb2_back_modrdn(
 424     BackendDB   *be,
 425     Connection  *conn,
 426     Operation   *op,
 427     char        *dn,
 428     char        *newrdn,
 429     int         deleteoldrdn,
 430     char        *newSuperior
 431 )
 432 {
 433         DB_LOCK         lock;
 434         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
 435         struct timeval  time1;
 436         int             ret;
 437
 438         bdb2i_start_timing( be->bd_info, &time1 );
 439
 440         if ( bdb2i_enter_backend_w( &lock ) != 0 ) {
 441
 442                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
 443                 return( -1 );
 444
 445         }
 446
 447         ret = bdb2i_back_modrdn_internal( be, conn, op, dn,
 448                                         newrdn, deleteoldrdn,
 449                                         newSuperior );
 450
 451         (void) bdb2i_leave_backend_w( lock );
 452         bdb2i_stop_timing( be->bd_info, time1, "MODRDN", conn, op );
 453
 454         return( ret );
 455 }
 456
 457