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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 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 #include "portable.h"
  19
  20 #include <stdio.h>
  21
  22 #include <ac/socket.h>
  23 #include <ac/string.h>
  24 #include <ac/time.h>
  25
  26 #include "lutil.h"
  27
  28 #include "ldap_pvt.h"
  29 #include "slap.h"
  30
  31 int
  32 do_modify(
  33     Connection  *conn,
  34     Operation   *op )
  35 {
  36         struct berval dn = { 0, NULL };
  37         struct berval pdn = { 0, NULL };
  38         struct berval ndn = { 0, NULL };
  39         char            *last;
  40         ber_tag_t       tag;
  41         ber_len_t       len;
  42         Modifications   *modlist = NULL;
  43         Modifications   **modtail = &modlist;
  44 #ifdef LDAP_DEBUG
  45         Modifications *tmp;
  46 #endif
  47         Backend         *be;
  48         int rc;
  49         const char      *text;
  50         int manageDSAit;
  51
  52 #ifdef NEW_LOGGING
  53         LDAP_LOG( OPERATION, ENTRY, "do_modify: enter\n", 0, 0, 0 );
  54 #else
  55         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  56 #endif
  57
  58         /*
  59          * Parse the modify request.  It looks like this:
  60          *
  61          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  62          *              name    DistinguishedName,
  63          *              mods    SEQUENCE OF SEQUENCE {
  64          *                      operation       ENUMERATED {
  65          *                              add     (0),
  66          *                              delete  (1),
  67          *                              replace (2)
  68          *                      },
  69          *                      modification    SEQUENCE {
  70          *                              type    AttributeType,
  71          *                              values  SET OF AttributeValue
  72          *                      }
  73          *              }
  74          *      }
  75          */
  76
  77         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  78 #ifdef NEW_LOGGING
  79                 LDAP_LOG( OPERATION, ERR, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  80 #else
  81                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  82 #endif
  83
  84                 send_ldap_disconnect( conn, op,
  85                         LDAP_PROTOCOL_ERROR, "decoding error" );
  86                 return SLAPD_DISCONNECT;
  87         }
  88
  89 #ifdef NEW_LOGGING
  90         LDAP_LOG( OPERATION, ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  91 #else
  92         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  93 #endif
  94
  95
  96         /* collect modifications & save for later */
  97
  98         for ( tag = ber_first_element( op->o_ber, &len, &last );
  99             tag != LBER_DEFAULT;
 100             tag = ber_next_element( op->o_ber, &len, last ) )
 101         {
 102                 ber_int_t mop;
 103                 Modifications tmp, *mod;
 104
 105
 106                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
 107                     &tmp.sml_type, &tmp.sml_bvalues )
 108                     == LBER_ERROR )
 109                 {
 110                         send_ldap_disconnect( conn, op,
 111                                 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
 112                         rc = SLAPD_DISCONNECT;
 113                         goto cleanup;
 114                 }
 115
 116                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 117                 mod->sml_op = mop;
 118                 mod->sml_type = tmp.sml_type;
 119                 mod->sml_bvalues = tmp.sml_bvalues;
 120                 mod->sml_desc = NULL;
 121                 mod->sml_next =NULL;
 122                 *modtail = mod;
 123
 124                 switch( mop ) {
 125                 case LDAP_MOD_ADD:
 126                         if ( mod->sml_bvalues == NULL ) {
 127 #ifdef NEW_LOGGING
 128                                 LDAP_LOG( OPERATION, ERR,
 129                                         "do_modify: modify/add operation (%ld) requires values\n",
 130                                         (long)mop, 0, 0 );
 131 #else
 132                                 Debug( LDAP_DEBUG_ANY,
 133                                         "do_modify: modify/add operation (%ld) requires values\n",
 134                                         (long) mop, 0, 0 );
 135 #endif
 136
 137                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 138                                         NULL, "modify/add operation requires values",
 139                                         NULL, NULL );
 140                                 rc = LDAP_PROTOCOL_ERROR;
 141                                 goto cleanup;
 142                         }
 143
 144                         /* fall through */
 145
 146                 case LDAP_MOD_DELETE:
 147                 case LDAP_MOD_REPLACE:
 148                         break;
 149
 150                 default: {
 151 #ifdef NEW_LOGGING
 152                                 LDAP_LOG( OPERATION, ERR,
 153                                         "do_modify: invalid modify operation (%ld)\n", (long)mop, 0, 0 );
 154 #else
 155                                 Debug( LDAP_DEBUG_ANY,
 156                                         "do_modify: invalid modify operation (%ld)\n",
 157                                         (long) mop, 0, 0 );
 158 #endif
 159
 160                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 161                                         NULL, "unrecognized modify operation", NULL, NULL );
 162                                 rc = LDAP_PROTOCOL_ERROR;
 163                                 goto cleanup;
 164                         }
 165                 }
 166
 167                 modtail = &mod->sml_next;
 168         }
 169         *modtail = NULL;
 170
 171         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 172 #ifdef NEW_LOGGING
 173                 LDAP_LOG( OPERATION, ERR, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 174 #else
 175                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 176 #endif
 177
 178                 goto cleanup;
 179         }
 180
 181         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
 182         if( rc != LDAP_SUCCESS ) {
 183 #ifdef NEW_LOGGING
 184                 LDAP_LOG( OPERATION, INFO, "do_modify: conn %d  invalid dn (%s)\n",
 185                         conn->c_connid, dn.bv_val, 0 );
 186 #else
 187                 Debug( LDAP_DEBUG_ANY,
 188                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 189 #endif
 190                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 191                     "invalid DN", NULL, NULL );
 192                 goto cleanup;
 193         }
 194
 195         if( ndn.bv_len == 0 ) {
 196 #ifdef NEW_LOGGING
 197                 LDAP_LOG( OPERATION, ERR,
 198                         "do_modify: attempt to modify root DSE.\n",0, 0, 0 );
 199 #else
 200                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 201 #endif
 202
 203                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 204                         NULL, "modify upon the root DSE not supported", NULL, NULL );
 205                 goto cleanup;
 206
 207 #if defined( SLAPD_SCHEMA_DN )
 208         } else if ( bvmatch( &ndn, &global_schemandn ) ) {
 209 #ifdef NEW_LOGGING
 210                 LDAP_LOG( OPERATION, ERR,
 211                         "do_modify: attempt to modify subschema subentry.\n" , 0, 0, 0  );
 212 #else
 213                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 214 #endif
 215
 216                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 217                         NULL, "modification of subschema subentry not supported",
 218                         NULL, NULL );
 219                 goto cleanup;
 220 #endif
 221         }
 222
 223 #ifdef LDAP_DEBUG
 224 #ifdef NEW_LOGGING
 225         LDAP_LOG( OPERATION, DETAIL1, "do_modify: modifications:\n", 0, 0, 0  );
 226 #else
 227         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 228 #endif
 229
 230         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 231 #ifdef NEW_LOGGING
 232                 LDAP_LOG( OPERATION, DETAIL1, "\t%s:  %s\n",
 233                         tmp->sml_op == LDAP_MOD_ADD ?
 234                         "add" : (tmp->sml_op == LDAP_MOD_DELETE ?
 235                         "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 236
 237                 if ( tmp->sml_bvalues == NULL ) {
 238                         LDAP_LOG( OPERATION, DETAIL1, "\t\tno values", 0, 0, 0 );
 239                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 240                         LDAP_LOG( OPERATION, DETAIL1, "\t\tzero values", 0, 0, 0 );
 241                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 242                         LDAP_LOG( OPERATION, DETAIL1, "\t\tone value", 0, 0, 0 );
 243                 } else {
 244                         LDAP_LOG( OPERATION, DETAIL1, "\t\tmultiple values", 0, 0, 0 );
 245                 }
 246
 247 #else
 248                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 249                         tmp->sml_op == LDAP_MOD_ADD
 250                                 ? "add" : (tmp->sml_op == LDAP_MOD_DELETE
 251                                         ? "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 252
 253                 if ( tmp->sml_bvalues == NULL ) {
 254                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 255                            "\t\tno values", NULL, NULL );
 256                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 257                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 258                            "\t\tzero values", NULL, NULL );
 259                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 260                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 261                            "\t\tone value", (long) tmp->sml_bvalues[0].bv_len, NULL );
 262                 } else {
 263                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 264                            "\t\tmultiple values", NULL, NULL );
 265                 }
 266 #endif
 267         }
 268 #endif
 269
 270         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 271             op->o_connid, op->o_opid, dn.bv_val, 0, 0 );
 272
 273         manageDSAit = get_manageDSAit( op );
 274
 275         /*
 276          * We could be serving multiple database backends.  Select the
 277          * appropriate one, or send a referral to our "referral server"
 278          * if we don't hold it.
 279          */
 280         if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
 281                 BerVarray ref = referral_rewrite( default_referral,
 282                         NULL, &pdn, LDAP_SCOPE_DEFAULT );
 283
 284                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 285                         NULL, NULL, ref ? ref : default_referral, NULL );
 286
 287                 ber_bvarray_free( ref );
 288                 goto cleanup;
 289         }
 290
 291         /* check restrictions */
 292         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 293         if( rc != LDAP_SUCCESS ) {
 294                 send_ldap_result( conn, op, rc,
 295                         NULL, text, NULL, NULL );
 296                 goto cleanup;
 297         }
 298
 299         /* check for referrals */
 300         rc = backend_check_referrals( be, conn, op, &pdn, &ndn );
 301         if ( rc != LDAP_SUCCESS ) {
 302                 goto cleanup;
 303         }
 304
 305         /* deref suffix alias if appropriate */
 306         suffix_alias( be, &ndn );
 307
 308         /*
 309          * do the modify if 1 && (2 || 3)
 310          * 1) there is a modify function implemented in this backend;
 311          * 2) this backend is master for what it holds;
 312          * 3) it's a replica and the dn supplied is the update_ndn.
 313          */
 314         if ( be->be_modify ) {
 315                 /* do the update here */
 316                 int repl_user = be_isupdate( be, &op->o_ndn );
 317 #ifndef SLAPD_MULTIMASTER
 318                 /* Multimaster slapd does not have to check for replicator dn
 319                  * because it accepts each modify request
 320                  */
 321                 if ( !be->be_update_ndn.bv_len || repl_user )
 322 #endif
 323                 {
 324                         int update = be->be_update_ndn.bv_len;
 325                         const char *text;
 326                         char textbuf[SLAP_TEXT_BUFLEN];
 327                         size_t textlen = sizeof textbuf;
 328
 329                         rc = slap_mods_check( modlist, update, &text,
 330                                 textbuf, textlen );
 331
 332                         if( rc != LDAP_SUCCESS ) {
 333                                 send_ldap_result( conn, op, rc,
 334                                         NULL, text, NULL, NULL );
 335                                 goto cleanup;
 336                         }
 337
 338                         if ( !repl_user ) {
 339                                 for( modtail = &modlist;
 340                                         *modtail != NULL;
 341                                         modtail = &(*modtail)->sml_next )
 342                                 {
 343                                         /* empty */
 344                                 }
 345
 346                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 347                                         textbuf, textlen );
 348                                 if( rc != LDAP_SUCCESS ) {
 349                                         send_ldap_result( conn, op, rc,
 350                                                 NULL, text,
 351                                                 NULL, NULL );
 352                                         goto cleanup;
 353                                 }
 354                         }
 355
 356                         if ( (*be->be_modify)( be, conn, op, &pdn, &ndn, modlist ) == 0
 357 #ifdef SLAPD_MULTIMASTER
 358                                 && !repl_user
 359 #endif
 360                         ) {
 361                                 /* but we log only the ones not from a replicator user */
 362                                 replog( be, op, &pdn, &ndn, modlist );
 363                         }
 364
 365 #ifndef SLAPD_MULTIMASTER
 366                 /* send a referral */
 367                 } else {
 368                         BerVarray defref = be->be_update_refs
 369                                 ? be->be_update_refs : default_referral;
 370                         BerVarray ref = referral_rewrite( defref,
 371                                 NULL, &pdn, LDAP_SCOPE_DEFAULT );
 372
 373                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 374                                 ref ? ref : defref, NULL );
 375
 376                         ber_bvarray_free( ref );
 377 #endif
 378                 }
 379         } else {
 380                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 381                     NULL, "operation not supported within namingContext",
 382                         NULL, NULL );
 383         }
 384
 385 cleanup:
 386         free( pdn.bv_val );
 387         free( ndn.bv_val );
 388         if ( modlist != NULL )
 389                 slap_mods_free( modlist );
 390         return rc;
 391 }
 392
 393 /*
 394  * Do basic attribute type checking and syntax validation.
 395  */
 396 int slap_mods_check(
 397         Modifications *ml,
 398         int update,
 399         const char **text,
 400         char *textbuf,
 401         size_t textlen )
 402 {
 403         int rc;
 404
 405         for( ; ml != NULL; ml = ml->sml_next ) {
 406                 AttributeDescription *ad = NULL;
 407
 408                 /* convert to attribute description */
 409                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 410
 411                 if( rc != LDAP_SUCCESS ) {
 412                         snprintf( textbuf, textlen, "%s: %s",
 413                                 ml->sml_type.bv_val, *text );
 414                         *text = textbuf;
 415                         return rc;
 416                 }
 417
 418                 ad = ml->sml_desc;
 419
 420                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 421                         && !slap_ad_is_binary( ad ))
 422                 {
 423                         /* attribute requires binary transfer */
 424                         snprintf( textbuf, textlen,
 425                                 "%s: requires ;binary transfer",
 426                                 ml->sml_type.bv_val );
 427                         *text = textbuf;
 428                         return LDAP_UNDEFINED_TYPE;
 429                 }
 430
 431                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 432                         && slap_ad_is_binary( ad ))
 433                 {
 434                         /* attribute requires binary transfer */
 435                         snprintf( textbuf, textlen,
 436                                 "%s: disallows ;binary transfer",
 437                                 ml->sml_type.bv_val );
 438                         *text = textbuf;
 439                         return LDAP_UNDEFINED_TYPE;
 440                 }
 441
 442                 if( slap_ad_is_lang_range( ad )) {
 443                         /* attribute requires binary transfer */
 444                         snprintf( textbuf, textlen,
 445                                 "%s: inappropriate use of language range option",
 446                                 ml->sml_type.bv_val );
 447                         *text = textbuf;
 448                         return LDAP_UNDEFINED_TYPE;
 449                 }
 450
 451                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 452                         /* user modification disallowed */
 453                         snprintf( textbuf, textlen,
 454                                 "%s: no user modification allowed",
 455                                 ml->sml_type.bv_val );
 456                         *text = textbuf;
 457                         return LDAP_CONSTRAINT_VIOLATION;
 458                 }
 459
 460                 if ( is_at_obsolete( ad->ad_type ) &&
 461                         ( ml->sml_op == LDAP_MOD_ADD || ml->sml_bvalues != NULL ) )
 462                 {
 463                         /*
 464                          * attribute is obsolete,
 465                          * only allow replace/delete with no values
 466                          */
 467                         snprintf( textbuf, textlen,
 468                                 "%s: attribute is obsolete",
 469                                 ml->sml_type.bv_val );
 470                         *text = textbuf;
 471                         return LDAP_CONSTRAINT_VIOLATION;
 472                 }
 473
 474                 /*
 475                  * check values
 476                  */
 477                 if( ml->sml_bvalues != NULL ) {
 478                         ber_len_t nvals;
 479                         slap_syntax_validate_func *validate =
 480                                 ad->ad_type->sat_syntax->ssyn_validate;
 481                         slap_syntax_transform_func *pretty =
 482                                 ad->ad_type->sat_syntax->ssyn_pretty;
 483
 484                         if( !pretty && !validate ) {
 485                                 *text = "no validator for syntax";
 486                                 snprintf( textbuf, textlen,
 487                                         "%s: no validator for syntax %s",
 488                                         ml->sml_type.bv_val,
 489                                         ad->ad_type->sat_syntax->ssyn_oid );
 490                                 *text = textbuf;
 491                                 return LDAP_INVALID_SYNTAX;
 492                         }
 493
 494                         /*
 495                          * check that each value is valid per syntax
 496                          *      and pretty if appropriate
 497                          */
 498                         for( nvals = 0; ml->sml_bvalues[nvals].bv_val; nvals++ ) {
 499                                 struct berval pval;
 500                                 if( pretty ) {
 501                                         rc = pretty( ad->ad_type->sat_syntax,
 502                                                 &ml->sml_bvalues[nvals], &pval );
 503                                 } else {
 504                                         rc = validate( ad->ad_type->sat_syntax,
 505                                                 &ml->sml_bvalues[nvals] );
 506                                 }
 507
 508                                 if( rc != 0 ) {
 509                                         snprintf( textbuf, textlen,
 510                                                 "%s: value #%ld invalid per syntax",
 511                                                 ml->sml_type.bv_val, (long) nvals );
 512                                         *text = textbuf;
 513                                         return LDAP_INVALID_SYNTAX;
 514                                 }
 515
 516                                 if( pretty ) {
 517                                         ber_memfree( ml->sml_bvalues[nvals].bv_val );
 518                                         ml->sml_bvalues[nvals] = pval;
 519                                 }
 520                         }
 521
 522                         /*
 523                          * a rough single value check... an additional check is needed
 524                          * to catch add of single value to existing single valued attribute
 525                          */
 526                         if( ( ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE )
 527                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 528                         {
 529                                 snprintf( textbuf, textlen,
 530                                         "%s: multiple value provided",
 531                                         ml->sml_type.bv_val );
 532                                 *text = textbuf;
 533                                 return LDAP_CONSTRAINT_VIOLATION;
 534                         }
 535                 }
 536         }
 537
 538         return LDAP_SUCCESS;
 539 }
 540
 541 int slap_mods_opattrs(
 542         Backend *be,
 543         Operation *op,
 544         Modifications *mods,
 545         Modifications **modtail,
 546         const char **text,
 547         char *textbuf, size_t textlen )
 548 {
 549         struct berval name, timestamp, csn;
 550         char timebuf[22];
 551         char csnbuf[64];
 552         Modifications *mod;
 553
 554         int mop = op->o_tag == LDAP_REQ_ADD
 555                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 556
 557         assert( modtail != NULL );
 558         assert( *modtail == NULL );
 559
 560         if( SLAP_LASTMOD(be) ) {
 561                 struct tm *ltm;
 562                 time_t now = slap_get_time();
 563
 564                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 565                 ltm = gmtime( &now );
 566                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 567
 568                 csn.bv_len = lutil_csnstr( csnbuf, sizeof( csnbuf ), 0, 0 );
 569                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 570                 csn.bv_val = csnbuf;
 571
 572                 timestamp.bv_val = timebuf;
 573                 timestamp.bv_len = strlen(timebuf);
 574
 575                 if( op->o_dn.bv_len == 0 ) {
 576                         name.bv_val = SLAPD_ANONYMOUS;
 577                         name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
 578                 } else {
 579                         name = op->o_dn;
 580                 }
 581         }
 582
 583         if( op->o_tag == LDAP_REQ_ADD ) {
 584                 struct berval tmpval;
 585
 586                 if( global_schemacheck ) {
 587                         int rc = mods_structural_class( mods, &tmpval,
 588                                 text, textbuf, textlen );
 589                         if( rc != LDAP_SUCCESS ) {
 590                                 return rc;
 591                         }
 592                         if ( tmpval.bv_len ) {
 593                                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 594                                 mod->sml_op = mop;
 595                                 mod->sml_type.bv_val = NULL;
 596                                 mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 597                                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 598                                 ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 599                                 mod->sml_bvalues[1].bv_val = NULL;
 600                                 assert( mod->sml_bvalues[0].bv_val );
 601                                 *modtail = mod;
 602                                 modtail = &mod->sml_next;
 603                         }
 604                 }
 605
 606                 if( SLAP_LASTMOD(be) ) {
 607                         char uuidbuf[40];
 608
 609                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 610                         tmpval.bv_val = uuidbuf;
 611
 612                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 613                         mod->sml_op = mop;
 614                         mod->sml_type.bv_val = NULL;
 615                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 616                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 617                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 618                         mod->sml_bvalues[1].bv_val = NULL;
 619                         assert( mod->sml_bvalues[0].bv_val );
 620                         *modtail = mod;
 621                         modtail = &mod->sml_next;
 622
 623                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 624                         mod->sml_op = mop;
 625                         mod->sml_type.bv_val = NULL;
 626                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 627                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 628                         ber_dupbv( &mod->sml_bvalues[0], &name );
 629                         mod->sml_bvalues[1].bv_val = NULL;
 630                         assert( mod->sml_bvalues[0].bv_val );
 631                         *modtail = mod;
 632                         modtail = &mod->sml_next;
 633
 634                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 635                         mod->sml_op = mop;
 636                         mod->sml_type.bv_val = NULL;
 637                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 638                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 639                         ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 640                         mod->sml_bvalues[1].bv_val = NULL;
 641                         assert( mod->sml_bvalues[0].bv_val );
 642                         *modtail = mod;
 643                         modtail = &mod->sml_next;
 644                 }
 645         }
 646
 647         if( SLAP_LASTMOD(be) ) {
 648                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 649                 mod->sml_op = mop;
 650                 mod->sml_type.bv_val = NULL;
 651                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 652                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 653                 ber_dupbv( &mod->sml_bvalues[0], &csn );
 654                 mod->sml_bvalues[1].bv_val = NULL;
 655                 assert( mod->sml_bvalues[0].bv_val );
 656                 *modtail = mod;
 657                 modtail = &mod->sml_next;
 658
 659                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 660                 mod->sml_op = mop;
 661                 mod->sml_type.bv_val = NULL;
 662                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 663                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 664                 ber_dupbv( &mod->sml_bvalues[0], &name );
 665                 mod->sml_bvalues[1].bv_val = NULL;
 666                 assert( mod->sml_bvalues[0].bv_val );
 667                 *modtail = mod;
 668                 modtail = &mod->sml_next;
 669
 670                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 671                 mod->sml_op = mop;
 672                 mod->sml_type.bv_val = NULL;
 673                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 674                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 675                 ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 676                 mod->sml_bvalues[1].bv_val = NULL;
 677                 assert( mod->sml_bvalues[0].bv_val );
 678                 *modtail = mod;
 679                 modtail = &mod->sml_next;
 680         }
 681
 682         *modtail = NULL;
 683         return LDAP_SUCCESS;
 684 }