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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15 /* Portions Copyright 1999, Juan C. Gomez, All rights reserved.
  16  * This software is not subject to any license of Silicon Graphics
  17  * Inc. or Purdue University.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * without restriction or fee of any kind as long as this notice
  21  * is preserved.
  22  */
  23 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  24  * All rights reserved.
  25  *
  26  * Redistribution and use in source and binary forms are permitted
  27  * provided that this notice is preserved and that due credit is given
  28  * to the University of Michigan at Ann Arbor. The name of the University
  29  * may not be used to endorse or promote products derived from this
  30  * software without specific prior written permission. This software
  31  * is provided ``as is'' without express or implied warranty.
  32  */
  33
  34 #include "portable.h"
  35
  36 #include <stdio.h>
  37
  38 #include <ac/socket.h>
  39 #include <ac/string.h>
  40
  41 #include "slap.h"
  42
  43 int
  44 do_modrdn(
  45     Operation   *op,
  46     SlapReply   *rs
  47 )
  48 {
  49         struct berval   dn = BER_BVNULL;
  50         struct berval   newrdn = BER_BVNULL;
  51         struct berval   newSuperior = BER_BVNULL;
  52         ber_int_t       deloldrdn;
  53
  54         struct berval pnewSuperior = BER_BVNULL;
  55
  56         struct berval nnewSuperior = BER_BVNULL;
  57
  58         ber_len_t       length;
  59
  60         Debug( LDAP_DEBUG_TRACE, "do_modrdn\n", 0, 0, 0 );
  61
  62
  63         /*
  64          * Parse the modrdn request.  It looks like this:
  65          *
  66          *      ModifyRDNRequest := SEQUENCE {
  67          *              entry   DistinguishedName,
  68          *              newrdn  RelativeDistinguishedName
  69          *              deleteoldrdn    BOOLEAN,
  70          *              newSuperior     [0] LDAPDN OPTIONAL (v3 Only!)
  71          *      }
  72          */
  73
  74         if ( ber_scanf( op->o_ber, "{mmb", &dn, &newrdn, &deloldrdn )
  75             == LBER_ERROR )
  76         {
  77                 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
  78
  79                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  80                 return SLAPD_DISCONNECT;
  81         }
  82
  83         /* Check for newSuperior parameter, if present scan it */
  84
  85         if ( ber_peek_tag( op->o_ber, &length ) == LDAP_TAG_NEWSUPERIOR ) {
  86                 if ( op->o_protocol < LDAP_VERSION3 ) {
  87                         /* Conection record indicates v2 but field
  88                          * newSuperior is present: report error.
  89                          */
  90                         Debug( LDAP_DEBUG_ANY,
  91                             "modrdn(v2): invalid field newSuperior!\n",
  92                             0, 0, 0 );
  93
  94                         send_ldap_discon( op, rs,
  95                                 LDAP_PROTOCOL_ERROR, "newSuperior requires LDAPv3" );
  96                         rs->sr_err = SLAPD_DISCONNECT;
  97                         goto cleanup;
  98                 }
  99
 100                 if ( ber_scanf( op->o_ber, "m", &newSuperior )
 101                      == LBER_ERROR ) {
 102
 103                         Debug( LDAP_DEBUG_ANY, "ber_scanf(\"m\") failed\n",
 104                                 0, 0, 0 );
 105
 106                         send_ldap_discon( op, rs,
 107                                 LDAP_PROTOCOL_ERROR, "decoding error" );
 108                         rs->sr_err = SLAPD_DISCONNECT;
 109                         goto cleanup;
 110                 }
 111                 op->orr_newSup = &pnewSuperior;
 112                 op->orr_nnewSup = &nnewSuperior;
 113         }
 114
 115         Debug( LDAP_DEBUG_ARGS,
 116             "do_modrdn: dn (%s) newrdn (%s) newsuperior (%s)\n",
 117                 dn.bv_val, newrdn.bv_val,
 118                 newSuperior.bv_len ? newSuperior.bv_val : "" );
 119
 120         if ( ber_scanf( op->o_ber, /*{*/ "}") == LBER_ERROR ) {
 121                 Debug( LDAP_DEBUG_ANY, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
 122
 123                 send_ldap_discon( op, rs,
 124                         LDAP_PROTOCOL_ERROR, "decoding error" );
 125                 rs->sr_err = SLAPD_DISCONNECT;
 126                 goto cleanup;
 127         }
 128
 129         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 130                 Debug( LDAP_DEBUG_ANY, "do_modrdn: get_ctrls failed\n", 0, 0, 0 );
 131
 132                 /* get_ctrls has sent results.  Now clean up. */
 133                 goto cleanup;
 134         }
 135
 136         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
 137         if( rs->sr_err != LDAP_SUCCESS ) {
 138                 Debug( LDAP_DEBUG_ANY,
 139                         "do_modrdn: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 140                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 141                 goto cleanup;
 142         }
 143
 144         /* FIXME: should have/use rdnPretty / rdnNormalize routines */
 145
 146         rs->sr_err = dnPrettyNormal( NULL, &newrdn, &op->orr_newrdn, &op->orr_nnewrdn, op->o_tmpmemctx );
 147         if( rs->sr_err != LDAP_SUCCESS ) {
 148                 Debug( LDAP_DEBUG_ANY,
 149                         "do_modrdn: invalid newrdn (%s)\n", newrdn.bv_val, 0, 0 );
 150                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
 151                 goto cleanup;
 152         }
 153
 154         if( rdn_validate( &op->orr_newrdn ) != LDAP_SUCCESS ) {
 155                 Debug( LDAP_DEBUG_ANY, "do_modrdn: invalid rdn (%s)\n",
 156                         op->orr_newrdn.bv_val, 0, 0 );
 157
 158                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
 159                 goto cleanup;
 160         }
 161
 162         if( op->orr_newSup ) {
 163                 rs->sr_err = dnPrettyNormal( NULL, &newSuperior, &pnewSuperior,
 164                         &nnewSuperior, op->o_tmpmemctx );
 165                 if( rs->sr_err != LDAP_SUCCESS ) {
 166                         Debug( LDAP_DEBUG_ANY,
 167                                 "do_modrdn: invalid newSuperior (%s)\n",
 168                                 newSuperior.bv_val, 0, 0 );
 169                         send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid newSuperior" );
 170                         goto cleanup;
 171                 }
 172         }
 173
 174         /* FIXME: temporary? */
 175         op->orr_deleteoldrdn = deloldrdn;
 176
 177         op->o_bd = frontendDB;
 178         rs->sr_err = frontendDB->be_modrdn( op, rs );
 179
 180 cleanup:
 181         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 182         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 183
 184         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
 185         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
 186
 187         if ( !BER_BVISNULL( &pnewSuperior ) )
 188                 op->o_tmpfree( pnewSuperior.bv_val, op->o_tmpmemctx );
 189         if ( !BER_BVISNULL( &nnewSuperior ) )
 190                 op->o_tmpfree( nnewSuperior.bv_val, op->o_tmpmemctx );
 191
 192         return rs->sr_err;
 193 }
 194
 195 int
 196 fe_op_modrdn( Operation *op, SlapReply *rs )
 197 {
 198         Backend         *newSuperior_be = NULL;
 199         int             manageDSAit;
 200         struct berval   pdn = BER_BVNULL;
 201         BackendDB *op_be;
 202
 203         if( op->o_req_ndn.bv_len == 0 ) {
 204                 Debug( LDAP_DEBUG_ANY, "do_modrdn: root dse!\n", 0, 0, 0 );
 205
 206                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 207                         "cannot rename the root DSE" );
 208                 goto cleanup;
 209
 210         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 211                 Debug( LDAP_DEBUG_ANY, "do_modrdn: subschema subentry: %s (%ld)\n",
 212                         frontendDB->be_schemandn.bv_val, (long)frontendDB->be_schemandn.bv_len, 0 );
 213
 214                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 215                         "cannot rename subschema subentry" );
 216                 goto cleanup;
 217         }
 218
 219         Statslog( LDAP_DEBUG_STATS, "%s MODRDN dn=\"%s\"\n",
 220             op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 221
 222         manageDSAit = get_manageDSAit( op );
 223
 224         /*
 225          * We could be serving multiple database backends.  Select the
 226          * appropriate one, or send a referral to our "referral server"
 227          * if we don't hold it.
 228          */
 229         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 230         if ( op->o_bd == NULL ) {
 231                 rs->sr_ref = referral_rewrite( default_referral,
 232                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 233                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 234
 235                 if ( rs->sr_ref != NULL ) {
 236                         rs->sr_err = LDAP_REFERRAL;
 237                         op->o_bd = frontendDB;
 238                         send_ldap_result( op, rs );
 239                         op->o_bd = NULL;
 240
 241                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 242                 } else {
 243                         op->o_bd = frontendDB;
 244                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 245                                 "no global superior knowledge" );
 246                         op->o_bd = NULL;
 247                 }
 248                 goto cleanup;
 249         }
 250
 251         /* If we've got a glued backend, check the real backend */
 252         op_be = op->o_bd;
 253         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 254                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 255         }
 256
 257         /* check restrictions */
 258         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 259                 send_ldap_result( op, rs );
 260                 goto cleanup;
 261         }
 262
 263         /* check for referrals */
 264         if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 265                 goto cleanup;
 266         }
 267
 268         /* Make sure that the entry being changed and the newSuperior are in
 269          * the same backend, otherwise we return an error.
 270          */
 271         if( op->orr_newSup ) {
 272                 newSuperior_be = select_backend( op->orr_nnewSup, 0, 0 );
 273
 274                 if ( newSuperior_be != op->o_bd ) {
 275                         /* newSuperior is in different backend */
 276                         send_ldap_error( op, rs, LDAP_AFFECTS_MULTIPLE_DSAS,
 277                                 "cannot rename between DSAs" );
 278
 279                         goto cleanup;
 280                 }
 281         }
 282
 283         /*
 284          * do the modrdn if 1 && (2 || 3)
 285          * 1) there is a modrdn function implemented in this backend;
 286          * 2) this backend is master for what it holds;
 287          * 3) it's a replica and the dn supplied is the update_ndn.
 288          */
 289         if ( op->o_bd->be_modrdn ) {
 290                 /* do the update here */
 291                 int repl_user = be_isupdate( op );
 292 #ifndef SLAPD_MULTIMASTER
 293                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 294 #endif
 295                 {
 296                         slap_callback cb = { NULL, slap_replog_cb, NULL, NULL };
 297
 298                         op->o_bd = op_be;
 299
 300 #ifdef SLAPD_MULTIMASTER
 301                         if ( !op->o_bd->be_update_ndn.bv_len || !repl_user )
 302 #endif
 303                         {
 304                                 cb.sc_next = op->o_callback;
 305                                 op->o_callback = &cb;
 306                         }
 307                         op->o_bd->be_modrdn( op, rs );
 308
 309                         if ( op->o_bd->be_delete ) {
 310                                 struct berval   org_req_dn = BER_BVNULL;
 311                                 struct berval   org_req_ndn = BER_BVNULL;
 312                                 struct berval   org_dn = BER_BVNULL;
 313                                 struct berval   org_ndn = BER_BVNULL;
 314                                 int             org_managedsait;
 315
 316                                 org_req_dn = op->o_req_dn;
 317                                 org_req_ndn = op->o_req_ndn;
 318                                 org_dn = op->o_dn;
 319                                 org_ndn = op->o_ndn;
 320                                 org_managedsait = get_manageDSAit( op );
 321                                 op->o_dn = op->o_bd->be_rootdn;
 322                                 op->o_ndn = op->o_bd->be_rootndn;
 323                                 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
 324
 325                                 while ( rs->sr_err == LDAP_SUCCESS &&
 326                                                 op->o_delete_glue_parent ) {
 327                                         op->o_delete_glue_parent = 0;
 328                                         if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
 329                                                 slap_callback cb = { NULL };
 330                                                 cb.sc_response = slap_null_cb;
 331                                                 dnParent( &op->o_req_ndn, &pdn );
 332                                                 op->o_req_dn = pdn;
 333                                                 op->o_req_ndn = pdn;
 334                                                 op->o_callback = &cb;
 335                                                 op->o_bd->be_delete( op, rs );
 336                                         } else {
 337                                                 break;
 338                                         }
 339                                 }
 340                                 op->o_managedsait = org_managedsait;
 341                                 op->o_dn = org_dn;
 342                                 op->o_ndn = org_ndn;
 343                                 op->o_req_dn = org_req_dn;
 344                                 op->o_req_ndn = org_req_ndn;
 345                                 op->o_delete_glue_parent = 0;
 346                         }
 347
 348 #ifndef SLAPD_MULTIMASTER
 349                 } else {
 350                         BerVarray defref = op->o_bd->be_update_refs
 351                                 ? op->o_bd->be_update_refs : default_referral;
 352
 353                         if ( defref != NULL ) {
 354                                 rs->sr_ref = referral_rewrite( defref,
 355                                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 356                                 if (!rs->sr_ref) rs->sr_ref = defref;
 357
 358                                 rs->sr_err = LDAP_REFERRAL;
 359                                 send_ldap_result( op, rs );
 360
 361                                 if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref );
 362                         } else {
 363                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 364                                         "shadow context; no update referral" );
 365                         }
 366 #endif
 367                 }
 368         } else {
 369                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 370                         "operation not supported within namingContext" );
 371         }
 372
 373 cleanup:;
 374         return rs->sr_err;
 375 }
 376
 377 int
 378 slap_modrdn2mods(
 379         Operation       *op,
 380         SlapReply       *rs,
 381         Entry           *e,
 382         LDAPRDN         old_rdn,
 383         LDAPRDN         new_rdn,
 384         Modifications   **pmod )
 385 {
 386         Modifications   *mod = NULL;
 387         int             a_cnt, d_cnt;
 388         int repl_user;
 389
 390         assert( new_rdn != NULL );
 391         assert( !op->orr_deleteoldrdn || old_rdn != NULL );
 392
 393         repl_user = be_isupdate( op );
 394
 395         /* Add new attribute values to the entry */
 396         for ( a_cnt = 0; new_rdn[a_cnt]; a_cnt++ ) {
 397                 AttributeDescription    *desc = NULL;
 398                 Modifications           *mod_tmp;
 399
 400                 rs->sr_err = slap_bv2ad( &new_rdn[a_cnt]->la_attr, &desc, &rs->sr_text );
 401
 402                 if ( rs->sr_err != LDAP_SUCCESS ) {
 403                         Debug( LDAP_DEBUG_TRACE,
 404                                 "slap_modrdn2modlist: %s: %s (new)\n",
 405                                 rs->sr_text,
 406                                 new_rdn[ a_cnt ]->la_attr.bv_val, 0 );
 407                         goto done;
 408                 }
 409
 410                 /* ACL check of newly added attrs */
 411                 if ( op->o_bd && !access_allowed( op, e, desc,
 412                         &new_rdn[a_cnt]->la_value, ACL_WADD, NULL ) ) {
 413                         Debug( LDAP_DEBUG_TRACE,
 414                                 "slap_modrdn2modlist: access to attr \"%s\" "
 415                                 "(new) not allowed\n",
 416                                 new_rdn[ a_cnt ]->la_attr.bv_val, 0, 0 );
 417                         rs->sr_text = "access to naming attributes (new) not allowed";
 418                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 419                         goto done;
 420                 }
 421
 422                 /* Apply modification */
 423                 mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications )
 424                         + 4 * sizeof( struct berval ) );
 425                 mod_tmp->sml_desc = desc;
 426                 mod_tmp->sml_values = ( BerVarray )( mod_tmp + 1 );
 427                 mod_tmp->sml_values[0] = new_rdn[a_cnt]->la_value;
 428                 mod_tmp->sml_values[1].bv_val = NULL;
 429                 if( desc->ad_type->sat_equality->smr_normalize) {
 430                         mod_tmp->sml_nvalues = &mod_tmp->sml_values[2];
 431                         (void) (*desc->ad_type->sat_equality->smr_normalize)(
 432                                 SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
 433                                 desc->ad_type->sat_syntax,
 434                                 desc->ad_type->sat_equality,
 435                                 &mod_tmp->sml_values[0],
 436                                 &mod_tmp->sml_nvalues[0], NULL );
 437                         mod_tmp->sml_nvalues[1].bv_val = NULL;
 438                 } else {
 439                         mod_tmp->sml_nvalues = NULL;
 440                 }
 441                 mod_tmp->sml_op = SLAP_MOD_SOFTADD;
 442                 mod_tmp->sml_flags = SLAP_MOD_INTERNAL;
 443                 mod_tmp->sml_next = mod;
 444                 mod = mod_tmp;
 445         }
 446
 447         /* Remove old rdn value if required */
 448         if ( op->orr_deleteoldrdn ) {
 449                 for ( d_cnt = 0; old_rdn[d_cnt]; d_cnt++ ) {
 450                         AttributeDescription    *desc = NULL;
 451                         Modifications           *mod_tmp;
 452
 453                         rs->sr_err = slap_bv2ad( &old_rdn[d_cnt]->la_attr, &desc, &rs->sr_text );
 454                         if ( rs->sr_err != LDAP_SUCCESS ) {
 455                                 Debug( LDAP_DEBUG_TRACE,
 456                                         "slap_modrdn2modlist: %s: %s (old)\n",
 457                                         rs->sr_text,
 458                                         old_rdn[d_cnt]->la_attr.bv_val,
 459                                         0 );
 460                                 goto done;
 461                         }
 462
 463                         /* ACL check of old rdn attrs removal */
 464                         if ( op->o_bd && !access_allowed( op, e, desc,
 465                                 &old_rdn[d_cnt]->la_value, ACL_WDEL,
 466                                 NULL ) ) {
 467                                 Debug( LDAP_DEBUG_TRACE,
 468                                         "slap_modrdn2modlist: access "
 469                                         "to attr \"%s\" (old) not allowed\n",
 470                                         old_rdn[ d_cnt ]->la_attr.bv_val,
 471                                         0, 0 );
 472                                 rs->sr_text = "access to naming attributes (old) not allowed";
 473                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 474                                 goto done;
 475                         }
 476
 477                         /* Apply modification */
 478                         mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications )
 479                                 + 4 * sizeof ( struct berval ) );
 480                         mod_tmp->sml_desc = desc;
 481                         mod_tmp->sml_values = ( BerVarray )(mod_tmp+1);
 482                         mod_tmp->sml_values[0] = old_rdn[d_cnt]->la_value;
 483                         mod_tmp->sml_values[1].bv_val = NULL;
 484                         if( desc->ad_type->sat_equality->smr_normalize) {
 485                                 mod_tmp->sml_nvalues = &mod_tmp->sml_values[2];
 486                                 (void) (*desc->ad_type->sat_equality->smr_normalize)(
 487                                         SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
 488                                         desc->ad_type->sat_syntax,
 489                                         desc->ad_type->sat_equality,
 490                                         &mod_tmp->sml_values[0],
 491                                         &mod_tmp->sml_nvalues[0], op->o_tmpmemctx );
 492                                 mod_tmp->sml_nvalues[1].bv_val = NULL;
 493                         } else {
 494                                 mod_tmp->sml_nvalues = NULL;
 495                         }
 496                         mod_tmp->sml_op = LDAP_MOD_DELETE;
 497                         mod_tmp->sml_flags = SLAP_MOD_INTERNAL;
 498                         mod_tmp->sml_next = mod;
 499                         mod = mod_tmp;
 500                 }
 501         }
 502
 503 done:
 504
 505         if ( rs->sr_err == LDAP_SUCCESS && !repl_user ) {
 506                 slap_mods_opattrs( op, mod, 1 );
 507         }
 508
 509         /* LDAP v2 supporting correct attribute handling. */
 510         if ( rs->sr_err != LDAP_SUCCESS && mod != NULL ) {
 511                 Modifications *tmp;
 512                 for ( ; mod; mod = tmp ) {
 513                         tmp = mod->sml_next;
 514                         ch_free( mod );
 515                 }
 516         }
 517
 518         *pmod = mod;
 519
 520         return rs->sr_err;
 521 }