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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*
   7  * Copyright (c) 1995 Regents of the University of Michigan.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms are permitted
  11  * provided that this notice is preserved and that due credit is given
  12  * to the University of Michigan at Ann Arbor. The name of the University
  13  * may not be used to endorse or promote products derived from this
  14  * software without specific prior written permission. This software
  15  * is provided ``as is'' without express or implied warranty.
  16  */
  17
  18 /*
  19  * LDAP v3 newSuperior support.
  20  *
  21  * Copyright 1999, Juan C. Gomez, All rights reserved.
  22  * This software is not subject to any license of Silicon Graphics
  23  * Inc. or Purdue University.
  24  *
  25  * Redistribution and use in source and binary forms are permitted
  26  * without restriction or fee of any kind as long as this notice
  27  * is preserved.
  28  *
  29  */
  30
  31 #include "portable.h"
  32
  33 #include <stdio.h>
  34
  35 #include <ac/socket.h>
  36 #include <ac/string.h>
  37
  38 #include "ldap_pvt.h"
  39 #include "slap.h"
  40 #ifdef LDAP_SLAPI
  41 #include "slapi.h"
  42 #endif
  43
  44 int
  45 do_modrdn(
  46     Operation   *op,
  47     SlapReply   *rs
  48 )
  49 {
  50         struct berval dn = { 0, NULL };
  51         struct berval newrdn = { 0, NULL };
  52         struct berval newSuperior = { 0, NULL };
  53         ber_int_t       deloldrdn;
  54
  55         struct berval pnewSuperior = { 0, NULL };
  56
  57         struct berval nnewSuperior = { 0, NULL };
  58
  59         Backend *newSuperior_be = NULL;
  60         ber_len_t       length;
  61         int manageDSAit;
  62
  63 #ifdef LDAP_SLAPI
  64         Slapi_PBlock *pb = op->o_pb;
  65 #endif
  66
  67 #ifdef NEW_LOGGING
  68         LDAP_LOG( OPERATION, ENTRY, "do_modrdn: begin\n", 0, 0, 0 );
  69 #else
  70         Debug( LDAP_DEBUG_TRACE, "do_modrdn\n", 0, 0, 0 );
  71 #endif
  72
  73
  74         /*
  75          * Parse the modrdn request.  It looks like this:
  76          *
  77          *      ModifyRDNRequest := SEQUENCE {
  78          *              entry   DistinguishedName,
  79          *              newrdn  RelativeDistinguishedName
  80          *              deleteoldrdn    BOOLEAN,
  81          *              newSuperior     [0] LDAPDN OPTIONAL (v3 Only!)
  82          *      }
  83          */
  84
  85         if ( ber_scanf( op->o_ber, "{mmb", &dn, &newrdn, &deloldrdn )
  86             == LBER_ERROR )
  87         {
  88 #ifdef NEW_LOGGING
  89                 LDAP_LOG( OPERATION, ERR, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
  90 #else
  91                 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
  92 #endif
  93
  94                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  95                 return SLAPD_DISCONNECT;
  96         }
  97
  98         /* Check for newSuperior parameter, if present scan it */
  99
 100         if ( ber_peek_tag( op->o_ber, &length ) == LDAP_TAG_NEWSUPERIOR ) {
 101                 if ( op->o_protocol < LDAP_VERSION3 ) {
 102                         /* Conection record indicates v2 but field
 103                          * newSuperior is present: report error.
 104                          */
 105 #ifdef NEW_LOGGING
 106                         LDAP_LOG( OPERATION, ERR,
 107                                 "do_modrdn: (v2) invalid field newSuperior.\n", 0, 0, 0 );
 108 #else
 109                         Debug( LDAP_DEBUG_ANY,
 110                             "modrdn(v2): invalid field newSuperior!\n",
 111                             0, 0, 0 );
 112 #endif
 113
 114                         send_ldap_discon( op, rs,
 115                                 LDAP_PROTOCOL_ERROR, "newSuperior requires LDAPv3" );
 116                         rs->sr_err = SLAPD_DISCONNECT;
 117                         goto cleanup;
 118                 }
 119
 120                 if ( ber_scanf( op->o_ber, "m", &newSuperior )
 121                      == LBER_ERROR ) {
 122
 123 #ifdef NEW_LOGGING
 124                         LDAP_LOG( OPERATION, ERR,
 125                                 "do_modrdn: ber_scanf(\"m\") failed\n", 0, 0, 0 );
 126 #else
 127                         Debug( LDAP_DEBUG_ANY, "ber_scanf(\"m\") failed\n",
 128                                 0, 0, 0 );
 129 #endif
 130
 131                         send_ldap_discon( op, rs,
 132                                 LDAP_PROTOCOL_ERROR, "decoding error" );
 133                         rs->sr_err = SLAPD_DISCONNECT;
 134                         goto cleanup;
 135                 }
 136                 op->orr_newSup = &pnewSuperior;
 137                 op->orr_nnewSup = &nnewSuperior;
 138         }
 139
 140 #ifdef NEW_LOGGING
 141         LDAP_LOG( OPERATION, ARGS,
 142                 "do_modrdn: dn (%s) newrdn (%s) newsuperior(%s)\n",
 143                 dn.bv_val, newrdn.bv_val,
 144                 newSuperior.bv_len ? newSuperior.bv_val : "" );
 145 #else
 146         Debug( LDAP_DEBUG_ARGS,
 147             "do_modrdn: dn (%s) newrdn (%s) newsuperior (%s)\n",
 148                 dn.bv_val, newrdn.bv_val,
 149                 newSuperior.bv_len ? newSuperior.bv_val : "" );
 150 #endif
 151
 152         if ( ber_scanf( op->o_ber, /*{*/ "}") == LBER_ERROR ) {
 153 #ifdef NEW_LOGGING
 154                 LDAP_LOG( OPERATION, ERR, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
 155 #else
 156                 Debug( LDAP_DEBUG_ANY, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
 157 #endif
 158
 159                 send_ldap_discon( op, rs,
 160                         LDAP_PROTOCOL_ERROR, "decoding error" );
 161                 rs->sr_err = SLAPD_DISCONNECT;
 162                 goto cleanup;
 163         }
 164
 165         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 166 #ifdef NEW_LOGGING
 167                 LDAP_LOG( OPERATION, ERR, "do_modrdn: get_ctrls failed\n", 0, 0, 0 );
 168 #else
 169                 Debug( LDAP_DEBUG_ANY, "do_modrdn: get_ctrls failed\n", 0, 0, 0 );
 170 #endif
 171
 172                 /* get_ctrls has sent results.  Now clean up. */
 173                 goto cleanup;
 174         }
 175
 176         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn );
 177         if( rs->sr_err != LDAP_SUCCESS ) {
 178 #ifdef NEW_LOGGING
 179                 LDAP_LOG( OPERATION, INFO,
 180                         "do_modrdn: conn %d  invalid dn (%s)\n",
 181                         op->o_connid, dn.bv_val, 0 );
 182 #else
 183                 Debug( LDAP_DEBUG_ANY,
 184                         "do_modrdn: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 185 #endif
 186                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 187                 goto cleanup;
 188         }
 189
 190         if( op->o_req_ndn.bv_len == 0 ) {
 191 #ifdef NEW_LOGGING
 192                 LDAP_LOG( OPERATION, ERR,
 193                         "do_modrdn:  attempt to modify root DSE.\n", 0, 0, 0 );
 194 #else
 195                 Debug( LDAP_DEBUG_ANY, "do_modrdn: root dse!\n", 0, 0, 0 );
 196 #endif
 197
 198                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 199                         "cannot rename the root DSE" );
 200                 goto cleanup;
 201
 202         } else if ( bvmatch( &op->o_req_ndn, &global_schemandn ) ) {
 203 #ifdef NEW_LOGGING
 204                 LDAP_LOG( OPERATION, ERR,
 205                         "do_modrdn: attempt to modify subschema subentry: %s (%ld)\n",
 206                         global_schemandn.bv_val, (long) global_schemandn.bv_len, 0 );
 207 #else
 208                 Debug( LDAP_DEBUG_ANY, "do_modrdn: subschema subentry: %s (%ld)\n",
 209                         global_schemandn.bv_val, (long) global_schemandn.bv_len, 0 );
 210 #endif
 211
 212                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 213                         "cannot rename subschema subentry" );
 214                 goto cleanup;
 215         }
 216
 217         /* FIXME: should have/use rdnPretty / rdnNormalize routines */
 218
 219         rs->sr_err = dnPrettyNormal( NULL, &newrdn, &op->orr_newrdn, &op->orr_nnewrdn );
 220         if( rs->sr_err != LDAP_SUCCESS ) {
 221 #ifdef NEW_LOGGING
 222                 LDAP_LOG( OPERATION, INFO,
 223                         "do_modrdn: conn %d  invalid newrdn (%s)\n",
 224                         op->o_connid, newrdn.bv_val, 0 );
 225 #else
 226                 Debug( LDAP_DEBUG_ANY,
 227                         "do_modrdn: invalid newrdn (%s)\n", newrdn.bv_val, 0, 0 );
 228 #endif
 229                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
 230                 goto cleanup;
 231         }
 232
 233         if( rdnValidate( &op->orr_newrdn ) != LDAP_SUCCESS ) {
 234 #ifdef NEW_LOGGING
 235                 LDAP_LOG( OPERATION, ERR,
 236                         "do_modrdn: invalid rdn (%s).\n", op->orr_newrdn.bv_val, 0, 0 );
 237 #else
 238                 Debug( LDAP_DEBUG_ANY, "do_modrdn: invalid rdn (%s)\n",
 239                         op->orr_newrdn.bv_val, 0, 0 );
 240 #endif
 241
 242                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
 243                 goto cleanup;
 244         }
 245
 246         if( op->orr_newSup ) {
 247                 rs->sr_err = dnPrettyNormal( NULL, &newSuperior, &pnewSuperior,
 248                         &nnewSuperior );
 249                 if( rs->sr_err != LDAP_SUCCESS ) {
 250 #ifdef NEW_LOGGING
 251                         LDAP_LOG( OPERATION, INFO,
 252                                 "do_modrdn: conn %d  invalid newSuperior (%s)\n",
 253                                 op->o_connid, newSuperior.bv_val, 0 );
 254 #else
 255                         Debug( LDAP_DEBUG_ANY,
 256                                 "do_modrdn: invalid newSuperior (%s)\n",
 257                                 newSuperior.bv_val, 0, 0 );
 258 #endif
 259                         send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid newSuperior" );
 260                         goto cleanup;
 261                 }
 262         }
 263
 264         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MODRDN dn=\"%s\"\n",
 265             op->o_connid, op->o_opid, op->o_req_dn.bv_val, 0, 0 );
 266
 267         manageDSAit = get_manageDSAit( op );
 268
 269         /*
 270          * We could be serving multiple database backends.  Select the
 271          * appropriate one, or send a referral to our "referral server"
 272          * if we don't hold it.
 273          */
 274         if ( (op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 )) == NULL ) {
 275                 rs->sr_ref = referral_rewrite( default_referral,
 276                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 277                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 278
 279                 rs->sr_err = LDAP_REFERRAL;
 280                 send_ldap_result( op, rs );
 281
 282                 if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 283                 goto cleanup;
 284         }
 285
 286         /* check restrictions */
 287         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 288                 send_ldap_result( op, rs );
 289                 goto cleanup;
 290         }
 291
 292         /* check for referrals */
 293         if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 294                 goto cleanup;
 295         }
 296
 297         /* Make sure that the entry being changed and the newSuperior are in
 298          * the same backend, otherwise we return an error.
 299          */
 300         if( op->orr_newSup ) {
 301                 newSuperior_be = select_backend( &nnewSuperior, 0, 0 );
 302
 303                 if ( newSuperior_be != op->o_bd ) {
 304                         /* newSuperior is in different backend */
 305                         send_ldap_error( op, rs, LDAP_AFFECTS_MULTIPLE_DSAS,
 306                                 "cannot rename between DSAs" );
 307
 308                         goto cleanup;
 309                 }
 310         }
 311
 312 #if defined( LDAP_SLAPI )
 313         slapi_x_pblock_set_operation( pb, op );
 314         slapi_pblock_set( pb, SLAPI_MODRDN_TARGET, (void *)dn.bv_val );
 315         slapi_pblock_set( pb, SLAPI_MODRDN_NEWRDN, (void *)newrdn.bv_val );
 316         slapi_pblock_set( pb, SLAPI_MODRDN_NEWSUPERIOR,
 317                         (void *)newSuperior.bv_val );
 318         slapi_pblock_set( pb, SLAPI_MODRDN_DELOLDRDN, (void *)deloldrdn );
 319         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 320
 321         rs->sr_err = doPluginFNs( op->o_bd, SLAPI_PLUGIN_PRE_MODRDN_FN, pb );
 322         if ( rs->sr_err != 0 ) {
 323                 /*
 324                  * A preoperation plugin failure will abort the
 325                  * entire operation.
 326                  */
 327 #ifdef NEW_LOGGING
 328                 LDAP_LOG( OPERATION, INFO, "do_modrdn: modrdn preoperation plugin "
 329                                 "failed\n", 0, 0, 0 );
 330 #else
 331                 Debug(LDAP_DEBUG_TRACE, "do_modrdn: modrdn preoperation plugin "
 332                                 "failed.\n", 0, 0, 0);
 333 #endif
 334                 if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&rs->sr_err ) != 0)
 335                         rs->sr_err = LDAP_OTHER;
 336                 goto cleanup;
 337         }
 338 #endif /* defined( LDAP_SLAPI ) */
 339
 340         /*
 341          * do the modrdn if 1 && (2 || 3)
 342          * 1) there is a modrdn function implemented in this backend;
 343          * 2) this backend is master for what it holds;
 344          * 3) it's a replica and the dn supplied is the update_ndn.
 345          */
 346         if ( op->o_bd->be_modrdn ) {
 347                 /* do the update here */
 348                 int repl_user = be_isupdate( op->o_bd, &op->o_ndn );
 349 #ifndef SLAPD_MULTIMASTER
 350                 if ( !op->o_bd->be_update_ndn.bv_len || repl_user )
 351 #endif
 352                 {
 353                         op->orr_deleteoldrdn = deloldrdn;
 354                         if ( (op->o_bd->be_modrdn)( op, rs ) == 0
 355 #ifdef SLAPD_MULTIMASTER
 356                                 && ( !op->o_bd->be_update_ndn.bv_len || !repl_user )
 357 #endif
 358                         ) {
 359                                 replog( op );
 360                         }
 361 #ifndef SLAPD_MULTIMASTER
 362                 } else {
 363                         BerVarray defref = op->o_bd->be_update_refs
 364                                 ? op->o_bd->be_update_refs : default_referral;
 365                         rs->sr_ref = referral_rewrite( defref,
 366                                 NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 367                         if (!rs->sr_ref) rs->sr_ref = defref;
 368
 369                         rs->sr_err = LDAP_REFERRAL;
 370                         send_ldap_result( op, rs );
 371
 372                         if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref );
 373 #endif
 374                 }
 375         } else {
 376                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 377                         "operation not supported within namingContext" );
 378         }
 379
 380 #if defined( LDAP_SLAPI )
 381         if ( doPluginFNs( op->o_bd, SLAPI_PLUGIN_POST_MODRDN_FN, pb ) != 0 ) {
 382 #ifdef NEW_LOGGING
 383                 LDAP_LOG( OPERATION, INFO, "do_modrdn: modrdn postoperation plugins "
 384                                 "failed\n", 0, 0, 0 );
 385 #else
 386                 Debug(LDAP_DEBUG_TRACE, "do_modrdn: modrdn postoperation plugins "
 387                                 "failed.\n", 0, 0, 0);
 388 #endif
 389         }
 390 #endif /* defined( LDAP_SLAPI ) */
 391
 392 cleanup:
 393         free( op->o_req_dn.bv_val );
 394         free( op->o_req_ndn.bv_val );
 395
 396         free( op->orr_newrdn.bv_val );
 397         free( op->orr_nnewrdn.bv_val );
 398
 399         if ( pnewSuperior.bv_val ) free( pnewSuperior.bv_val );
 400         if ( nnewSuperior.bv_val ) free( nnewSuperior.bv_val );
 401
 402         return rs->sr_err;
 403 }
 404
 405 int
 406 slap_modrdn2mods(
 407         Operation       *op,
 408         SlapReply       *rs,
 409         Entry           *e,
 410         LDAPRDN         *old_rdn,
 411         LDAPRDN         *new_rdn,
 412         Modifications   **pmod )
 413 {
 414         Modifications   *mod = NULL;
 415         int             a_cnt, d_cnt;
 416
 417         assert( new_rdn != NULL );
 418         assert( !op->orr_deleteoldrdn || old_rdn != NULL );
 419
 420         /* Add new attribute values to the entry */
 421         for ( a_cnt = 0; new_rdn[0][a_cnt]; a_cnt++ ) {
 422                 AttributeDescription    *desc = NULL;
 423                 Modifications           *mod_tmp;
 424
 425                 rs->sr_err = slap_bv2ad( &new_rdn[0][a_cnt]->la_attr, &desc, &rs->sr_text );
 426
 427                 if ( rs->sr_err != LDAP_SUCCESS ) {
 428 #ifdef NEW_LOGGING
 429                         LDAP_LOG ( OPERATION, ERR,
 430                                 "slap_modrdn2modlist: %s: %s (new)\n",
 431                                 rs->sr_text,
 432                                 new_rdn[ 0 ][ a_cnt ]->la_attr.bv_val, 0 );
 433 #else
 434                         Debug( LDAP_DEBUG_TRACE,
 435                                 "slap_modrdn2modlist: %s: %s (new)\n",
 436                                 rs->sr_text,
 437                                 new_rdn[ 0 ][ a_cnt ]->la_attr.bv_val, 0 );
 438 #endif
 439                         goto done;
 440                 }
 441
 442                 /* ACL check of newly added attrs */
 443                 if ( op->o_bd && !access_allowed( op, e, desc,
 444                         &new_rdn[0][a_cnt]->la_value, ACL_WRITE, NULL ) ) {
 445 #ifdef NEW_LOGGING
 446                         LDAP_LOG ( OPERATION, ERR,
 447                                 "slap_modrdn2modlist: access to attr \"%s\" "
 448                                 "(new) not allowed\n",
 449                                 new_rdn[0][a_cnt]->la_attr.bv_val, 0, 0 );
 450 #else
 451                         Debug( LDAP_DEBUG_TRACE,
 452                                 "slap_modrdn2modlist: access to attr \"%s\" "
 453                                 "(new) not allowed\n",
 454                                 new_rdn[0][ a_cnt ]->la_attr.bv_val, 0, 0 );
 455 #endif
 456                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 457                         goto done;
 458                 }
 459
 460                 /* Apply modification */
 461                 mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications )
 462                         + 4 * sizeof( struct berval ) );
 463                 mod_tmp->sml_desc = desc;
 464                 mod_tmp->sml_values = ( BerVarray )( mod_tmp + 1 );
 465                 mod_tmp->sml_values[0] = new_rdn[0][a_cnt]->la_value;
 466                 mod_tmp->sml_values[1].bv_val = NULL;
 467                 if( desc->ad_type->sat_equality->smr_normalize) {
 468                         mod_tmp->sml_nvalues = &mod_tmp->sml_values[2];
 469                         (void) (*desc->ad_type->sat_equality->smr_normalize)(
 470                                 SLAP_MR_EQUALITY,
 471                                 desc->ad_type->sat_syntax,
 472                                 desc->ad_type->sat_equality,
 473                                 &mod_tmp->sml_values[0],
 474                                 &mod_tmp->sml_nvalues[0] );
 475                         mod_tmp->sml_nvalues[1].bv_val = NULL;
 476                 } else {
 477                         mod_tmp->sml_nvalues = NULL;
 478                 }
 479                 mod_tmp->sml_op = SLAP_MOD_SOFTADD;
 480                 mod_tmp->sml_next = mod;
 481                 mod = mod_tmp;
 482         }
 483
 484         /* Remove old rdn value if required */
 485         if ( op->orr_deleteoldrdn ) {
 486                 for ( d_cnt = 0; old_rdn[0][d_cnt]; d_cnt++ ) {
 487                         AttributeDescription    *desc = NULL;
 488                         Modifications           *mod_tmp;
 489
 490                         rs->sr_err = slap_bv2ad( &old_rdn[0][d_cnt]->la_attr, &desc, &rs->sr_text );
 491                         if ( rs->sr_err != LDAP_SUCCESS ) {
 492 #ifdef NEW_LOGGING
 493                                 LDAP_LOG ( OPERATION, ERR,
 494                                         "slap_modrdn2modlist: %s: %s (old)\n",
 495                                         rs->sr_text,
 496                                         old_rdn[0][d_cnt]->la_attr.bv_val,
 497                                         0 );
 498 #else
 499                                 Debug( LDAP_DEBUG_TRACE,
 500                                         "slap_modrdn2modlist: %s: %s (old)\n",
 501                                         rs->sr_text,
 502                                         old_rdn[0][d_cnt]->la_attr.bv_val,
 503                                         0 );
 504 #endif
 505                                 goto done;
 506                         }
 507
 508                         /* ACL check of newly added attrs */
 509                         if ( op->o_bd && !access_allowed( op, e, desc,
 510                                 &old_rdn[0][d_cnt]->la_value, ACL_WRITE,
 511                                 NULL ) ) {
 512 #ifdef NEW_LOGGING
 513                                 LDAP_LOG ( OPERATION, ERR,
 514                                         "slap_modrdn2modlist: access "
 515                                         "to attr \"%s\" (old) not allowed\n",
 516                                         old_rdn[ 0 ][ d_cnt ]->la_attr.bv_val,
 517                                         0, 0 );
 518 #else
 519                                 Debug( LDAP_DEBUG_TRACE,
 520                                         "slap_modrdn2modlist: access "
 521                                         "to attr \"%s\" (old) not allowed\n",
 522                                         old_rdn[ 0 ][ d_cnt ]->la_attr.bv_val,
 523                                         0, 0 );
 524 #endif
 525                                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 526                                 goto done;
 527                         }
 528
 529                         /* Apply modification */
 530                         mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications )
 531                                 + 4 * sizeof ( struct berval ) );
 532                         mod_tmp->sml_desc = desc;
 533                         mod_tmp->sml_values = ( BerVarray )(mod_tmp+1);
 534                         mod_tmp->sml_values[0] = old_rdn[0][d_cnt]->la_value;
 535                         mod_tmp->sml_values[1].bv_val = NULL;
 536                         if( desc->ad_type->sat_equality->smr_normalize) {
 537                                 mod_tmp->sml_nvalues = &mod_tmp->sml_values[2];
 538                                 (void) (*desc->ad_type->sat_equality->smr_normalize)(
 539                                         SLAP_MR_EQUALITY,
 540                                         desc->ad_type->sat_syntax,
 541                                         desc->ad_type->sat_equality,
 542                                         &mod_tmp->sml_values[0],
 543                                         &mod_tmp->sml_nvalues[0] );
 544                                 mod_tmp->sml_nvalues[1].bv_val = NULL;
 545                         } else {
 546                                 mod_tmp->sml_nvalues = NULL;
 547                         }
 548                         mod_tmp->sml_op = LDAP_MOD_DELETE;
 549                         mod_tmp->sml_next = mod;
 550                         mod = mod_tmp;
 551                 }
 552         }
 553
 554 done:
 555         /* LDAP v2 supporting correct attribute handling. */
 556         if ( rs->sr_err != LDAP_SUCCESS && mod != NULL ) {
 557                 Modifications *tmp;
 558                 for ( ; mod; mod = tmp ) {
 559                         tmp = mod->sml_next;
 560                         ch_free( mod );
 561                 }
 562         }
 563
 564         *pmod = mod;
 565
 566         return rs->sr_err;
 567 }