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 #include "slapi_common.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/socket.h>
  24 #include <ac/string.h>
  25 #include <ac/time.h>
  26
  27 #include "lutil.h"
  28
  29 #include "ldap_pvt.h"
  30 #include "slap.h"
  31 #include "slapi.h"
  32
  33 int
  34 do_modify(
  35     Connection  *conn,
  36     Operation   *op )
  37 {
  38         struct berval dn = { 0, NULL };
  39         struct berval pdn = { 0, NULL };
  40         struct berval ndn = { 0, NULL };
  41         char            *last;
  42         ber_tag_t       tag;
  43         ber_len_t       len;
  44         Modifications   *modlist = NULL;
  45         Modifications   **modtail = &modlist;
  46 #ifdef LDAP_DEBUG
  47         Modifications *tmp;
  48 #endif
  49         Backend         *be;
  50         int rc;
  51         const char      *text;
  52         int manageDSAit;
  53
  54         Slapi_PBlock *pb = op->o_pb;
  55
  56 #ifdef NEW_LOGGING
  57         LDAP_LOG( OPERATION, ENTRY, "do_modify: enter\n", 0, 0, 0 );
  58 #else
  59         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  60 #endif
  61
  62         /*
  63          * Parse the modify request.  It looks like this:
  64          *
  65          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  66          *              name    DistinguishedName,
  67          *              mods    SEQUENCE OF SEQUENCE {
  68          *                      operation       ENUMERATED {
  69          *                              add     (0),
  70          *                              delete  (1),
  71          *                              replace (2)
  72          *                      },
  73          *                      modification    SEQUENCE {
  74          *                              type    AttributeType,
  75          *                              values  SET OF AttributeValue
  76          *                      }
  77          *              }
  78          *      }
  79          */
  80
  81         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  82 #ifdef NEW_LOGGING
  83                 LDAP_LOG( OPERATION, ERR, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  84 #else
  85                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  86 #endif
  87
  88                 send_ldap_disconnect( conn, op,
  89                         LDAP_PROTOCOL_ERROR, "decoding error" );
  90                 return SLAPD_DISCONNECT;
  91         }
  92
  93 #ifdef NEW_LOGGING
  94         LDAP_LOG( OPERATION, ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  95 #else
  96         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  97 #endif
  98
  99
 100         /* collect modifications & save for later */
 101
 102         for ( tag = ber_first_element( op->o_ber, &len, &last );
 103             tag != LBER_DEFAULT;
 104             tag = ber_next_element( op->o_ber, &len, last ) )
 105         {
 106                 ber_int_t mop;
 107                 Modifications tmp, *mod;
 108
 109
 110                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
 111                     &tmp.sml_type, &tmp.sml_bvalues )
 112                     == LBER_ERROR )
 113                 {
 114                         send_ldap_disconnect( conn, op,
 115                                 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
 116                         rc = SLAPD_DISCONNECT;
 117                         goto cleanup;
 118                 }
 119
 120                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 121                 mod->sml_op = mop;
 122                 mod->sml_type = tmp.sml_type;
 123                 mod->sml_bvalues = tmp.sml_bvalues;
 124                 mod->sml_desc = NULL;
 125                 mod->sml_next =NULL;
 126                 *modtail = mod;
 127
 128                 switch( mop ) {
 129                 case LDAP_MOD_ADD:
 130                         if ( mod->sml_bvalues == NULL ) {
 131 #ifdef NEW_LOGGING
 132                                 LDAP_LOG( OPERATION, ERR,
 133                                         "do_modify: modify/add operation (%ld) requires values\n",
 134                                         (long)mop, 0, 0 );
 135 #else
 136                                 Debug( LDAP_DEBUG_ANY,
 137                                         "do_modify: modify/add operation (%ld) requires values\n",
 138                                         (long) mop, 0, 0 );
 139 #endif
 140
 141                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 142                                         NULL, "modify/add operation requires values",
 143                                         NULL, NULL );
 144                                 rc = LDAP_PROTOCOL_ERROR;
 145                                 goto cleanup;
 146                         }
 147
 148                         /* fall through */
 149
 150                 case LDAP_MOD_DELETE:
 151                 case LDAP_MOD_REPLACE:
 152                         break;
 153
 154                 default: {
 155 #ifdef NEW_LOGGING
 156                                 LDAP_LOG( OPERATION, ERR,
 157                                         "do_modify: invalid modify operation (%ld)\n", (long)mop, 0, 0 );
 158 #else
 159                                 Debug( LDAP_DEBUG_ANY,
 160                                         "do_modify: invalid modify operation (%ld)\n",
 161                                         (long) mop, 0, 0 );
 162 #endif
 163
 164                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 165                                         NULL, "unrecognized modify operation", NULL, NULL );
 166                                 rc = LDAP_PROTOCOL_ERROR;
 167                                 goto cleanup;
 168                         }
 169                 }
 170
 171                 modtail = &mod->sml_next;
 172         }
 173         *modtail = NULL;
 174
 175         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 176 #ifdef NEW_LOGGING
 177                 LDAP_LOG( OPERATION, ERR, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 178 #else
 179                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 180 #endif
 181
 182                 goto cleanup;
 183         }
 184
 185         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
 186         if( rc != LDAP_SUCCESS ) {
 187 #ifdef NEW_LOGGING
 188                 LDAP_LOG( OPERATION, INFO, "do_modify: conn %d  invalid dn (%s)\n",
 189                         conn->c_connid, dn.bv_val, 0 );
 190 #else
 191                 Debug( LDAP_DEBUG_ANY,
 192                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 193 #endif
 194                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 195                     "invalid DN", NULL, NULL );
 196                 goto cleanup;
 197         }
 198
 199         if( ndn.bv_len == 0 ) {
 200 #ifdef NEW_LOGGING
 201                 LDAP_LOG( OPERATION, ERR,
 202                         "do_modify: attempt to modify root DSE.\n",0, 0, 0 );
 203 #else
 204                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 205 #endif
 206
 207                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 208                         NULL, "modify upon the root DSE not supported", NULL, NULL );
 209                 goto cleanup;
 210
 211         } else if ( bvmatch( &ndn, &global_schemandn ) ) {
 212 #ifdef NEW_LOGGING
 213                 LDAP_LOG( OPERATION, ERR,
 214                         "do_modify: attempt to modify subschema subentry.\n" , 0, 0, 0  );
 215 #else
 216                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 217 #endif
 218
 219                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 220                         NULL, "modification of subschema subentry not supported",
 221                         NULL, NULL );
 222                 goto cleanup;
 223         }
 224
 225 #ifdef LDAP_DEBUG
 226 #ifdef NEW_LOGGING
 227         LDAP_LOG( OPERATION, DETAIL1, "do_modify: modifications:\n", 0, 0, 0  );
 228 #else
 229         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 230 #endif
 231
 232         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 233 #ifdef NEW_LOGGING
 234                 LDAP_LOG( OPERATION, DETAIL1, "\t%s:  %s\n",
 235                         tmp->sml_op == LDAP_MOD_ADD ?
 236                         "add" : (tmp->sml_op == LDAP_MOD_DELETE ?
 237                         "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 238
 239                 if ( tmp->sml_bvalues == NULL ) {
 240                         LDAP_LOG( OPERATION, DETAIL1, "\t\tno values", 0, 0, 0 );
 241                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 242                         LDAP_LOG( OPERATION, DETAIL1, "\t\tzero values", 0, 0, 0 );
 243                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 244                         LDAP_LOG( OPERATION, DETAIL1, "\t\tone value", 0, 0, 0 );
 245                 } else {
 246                         LDAP_LOG( OPERATION, DETAIL1, "\t\tmultiple values", 0, 0, 0 );
 247                 }
 248
 249 #else
 250                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 251                         tmp->sml_op == LDAP_MOD_ADD
 252                                 ? "add" : (tmp->sml_op == LDAP_MOD_DELETE
 253                                         ? "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 254
 255                 if ( tmp->sml_bvalues == NULL ) {
 256                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 257                            "\t\tno values", NULL, NULL );
 258                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 259                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 260                            "\t\tzero values", NULL, NULL );
 261                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 262                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 263                            "\t\tone value", (long) tmp->sml_bvalues[0].bv_len, NULL );
 264                 } else {
 265                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 266                            "\t\tmultiple values", NULL, NULL );
 267                 }
 268 #endif
 269         }
 270 #endif
 271
 272         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 273                 char abuf[BUFSIZ/2], *ptr = abuf;
 274                 int len = 0;
 275
 276                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 277                         op->o_connid, op->o_opid, dn.bv_val, 0, 0 );
 278
 279                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 280                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 281                                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 282                                     op->o_connid, op->o_opid, abuf, 0, 0 );
 283                                 len = 0;
 284                                 ptr = abuf;
 285                         }
 286                         if (len) {
 287                                 *ptr++ = ' ';
 288                                 len++;
 289                         }
 290                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 291                         len += tmp->sml_type.bv_len;
 292                 }
 293                 if (len) {
 294                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 295                                 op->o_connid, op->o_opid, abuf, 0, 0 );
 296                 }
 297         }
 298
 299         manageDSAit = get_manageDSAit( op );
 300
 301         /*
 302          * We could be serving multiple database backends.  Select the
 303          * appropriate one, or send a referral to our "referral server"
 304          * if we don't hold it.
 305          */
 306         if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
 307                 BerVarray ref = referral_rewrite( default_referral,
 308                         NULL, &pdn, LDAP_SCOPE_DEFAULT );
 309
 310                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 311                         NULL, NULL, ref ? ref : default_referral, NULL );
 312
 313                 ber_bvarray_free( ref );
 314                 goto cleanup;
 315         }
 316
 317         /* check restrictions */
 318         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 319         if( rc != LDAP_SUCCESS ) {
 320                 send_ldap_result( conn, op, rc,
 321                         NULL, text, NULL, NULL );
 322                 goto cleanup;
 323         }
 324
 325         /* check for referrals */
 326         rc = backend_check_referrals( be, conn, op, &pdn, &ndn );
 327         if ( rc != LDAP_SUCCESS ) {
 328                 goto cleanup;
 329         }
 330
 331         /* deref suffix alias if appropriate */
 332         suffix_alias( be, &ndn );
 333
 334 #if defined( LDAP_SLAPI )
 335         slapi_pblock_set( pb, SLAPI_BACKEND, (void *)be );
 336         slapi_pblock_set( pb, SLAPI_CONNECTION, (void *)conn );
 337         slapi_pblock_set( pb, SLAPI_OPERATION, (void *)op );
 338         slapi_pblock_set( pb, SLAPI_BIND_TARGET, (void *)dn.bv_val );
 339         slapi_pblock_set( pb, SLAPI_REQCONTROLS, (void *)op->o_ctrls );
 340         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)(1) );
 341
 342         rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 343         if ( rc != 0 && rc != LDAP_OTHER ) {
 344                 /*
 345                  * either there is no preOp (modify) plugins
 346                  * or a plugin failed. Just log it
 347                  *
 348                  * FIXME: is this correct?
 349                  */
 350 #ifdef NEW_LOGGING
 351                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO, "do_modify: modify preOps failed\n"));
 352 #else
 353                 Debug (LDAP_DEBUG_TRACE, " modify preOps failed.\n", 0, 0, 0);
 354 #endif
 355         }
 356 #endif /* defined( LDAP_SLAPI ) */
 357
 358         /*
 359          * do the modify if 1 && (2 || 3)
 360          * 1) there is a modify function implemented in this backend;
 361          * 2) this backend is master for what it holds;
 362          * 3) it's a replica and the dn supplied is the update_ndn.
 363          */
 364         if ( be->be_modify ) {
 365                 /* do the update here */
 366                 int repl_user = be_isupdate( be, &op->o_ndn );
 367 #ifndef SLAPD_MULTIMASTER
 368                 /* Multimaster slapd does not have to check for replicator dn
 369                  * because it accepts each modify request
 370                  */
 371                 if ( !be->be_update_ndn.bv_len || repl_user )
 372 #endif
 373                 {
 374                         int update = be->be_update_ndn.bv_len;
 375                         const char *text;
 376                         char textbuf[SLAP_TEXT_BUFLEN];
 377                         size_t textlen = sizeof textbuf;
 378
 379                         rc = slap_mods_check( modlist, update, &text,
 380                                 textbuf, textlen );
 381
 382                         if( rc != LDAP_SUCCESS ) {
 383                                 send_ldap_result( conn, op, rc,
 384                                         NULL, text, NULL, NULL );
 385                                 goto cleanup;
 386                         }
 387
 388                         if ( !repl_user ) {
 389                                 for( modtail = &modlist;
 390                                         *modtail != NULL;
 391                                         modtail = &(*modtail)->sml_next )
 392                                 {
 393                                         /* empty */
 394                                 }
 395
 396                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 397                                         textbuf, textlen );
 398                                 if( rc != LDAP_SUCCESS ) {
 399                                         send_ldap_result( conn, op, rc,
 400                                                 NULL, text,
 401                                                 NULL, NULL );
 402                                         goto cleanup;
 403                                 }
 404                         }
 405
 406                         if ( (*be->be_modify)( be, conn, op, &pdn, &ndn, modlist ) == 0
 407 #ifdef SLAPD_MULTIMASTER
 408                                 && !repl_user
 409 #endif
 410                         ) {
 411                                 /* but we log only the ones not from a replicator user */
 412                                 replog( be, op, &pdn, &ndn, modlist );
 413                         }
 414
 415 #ifndef SLAPD_MULTIMASTER
 416                 /* send a referral */
 417                 } else {
 418                         BerVarray defref = be->be_update_refs
 419                                 ? be->be_update_refs : default_referral;
 420                         BerVarray ref = referral_rewrite( defref,
 421                                 NULL, &pdn, LDAP_SCOPE_DEFAULT );
 422
 423                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 424                                 ref ? ref : defref, NULL );
 425
 426                         ber_bvarray_free( ref );
 427 #endif
 428                 }
 429         } else {
 430                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 431                     NULL, "operation not supported within namingContext",
 432                         NULL, NULL );
 433         }
 434
 435 #if defined( LDAP_SLAPI )
 436         rc = doPluginFNs( be, SLAPI_PLUGIN_POST_MODIFY_FN, pb );
 437         if ( rc != 0 && rc != LDAP_OTHER ) {
 438                 /*
 439                  * either there is no postOp (modify) plugins
 440                  * or a plugin failed. Just log it
 441                  *
 442                  * FIXME: is this correct?
 443                  */
 444 #ifdef NEW_LOGGING
 445                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO, "do_modify: modify postOps failed\n"));
 446 #else
 447                 Debug (LDAP_DEBUG_TRACE, " modify postOps failed.\n", 0, 0, 0);
 448 #endif
 449         }
 450 #endif /* defined( LDAP_SLAPI ) */
 451
 452 cleanup:
 453         free( pdn.bv_val );
 454         free( ndn.bv_val );
 455         if ( modlist != NULL )
 456                 slap_mods_free( modlist );
 457         return rc;
 458 }
 459
 460 /*
 461  * Do basic attribute type checking and syntax validation.
 462  */
 463 int slap_mods_check(
 464         Modifications *ml,
 465         int update,
 466         const char **text,
 467         char *textbuf,
 468         size_t textlen )
 469 {
 470         int rc;
 471
 472         for( ; ml != NULL; ml = ml->sml_next ) {
 473                 AttributeDescription *ad = NULL;
 474
 475                 /* convert to attribute description */
 476                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 477
 478                 if( rc != LDAP_SUCCESS ) {
 479                         snprintf( textbuf, textlen, "%s: %s",
 480                                 ml->sml_type.bv_val, *text );
 481                         *text = textbuf;
 482                         return rc;
 483                 }
 484
 485                 ad = ml->sml_desc;
 486
 487                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 488                         && !slap_ad_is_binary( ad ))
 489                 {
 490                         /* attribute requires binary transfer */
 491                         snprintf( textbuf, textlen,
 492                                 "%s: requires ;binary transfer",
 493                                 ml->sml_type.bv_val );
 494                         *text = textbuf;
 495                         return LDAP_UNDEFINED_TYPE;
 496                 }
 497
 498                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 499                         && slap_ad_is_binary( ad ))
 500                 {
 501                         /* attribute requires binary transfer */
 502                         snprintf( textbuf, textlen,
 503                                 "%s: disallows ;binary transfer",
 504                                 ml->sml_type.bv_val );
 505                         *text = textbuf;
 506                         return LDAP_UNDEFINED_TYPE;
 507                 }
 508
 509                 if( slap_ad_is_tag_range( ad )) {
 510                         /* attribute requires binary transfer */
 511                         snprintf( textbuf, textlen,
 512                                 "%s: inappropriate use of tag range option",
 513                                 ml->sml_type.bv_val );
 514                         *text = textbuf;
 515                         return LDAP_UNDEFINED_TYPE;
 516                 }
 517
 518                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 519                         /* user modification disallowed */
 520                         snprintf( textbuf, textlen,
 521                                 "%s: no user modification allowed",
 522                                 ml->sml_type.bv_val );
 523                         *text = textbuf;
 524                         return LDAP_CONSTRAINT_VIOLATION;
 525                 }
 526
 527                 if ( is_at_obsolete( ad->ad_type ) &&
 528                         ( ml->sml_op == LDAP_MOD_ADD || ml->sml_bvalues != NULL ) )
 529                 {
 530                         /*
 531                          * attribute is obsolete,
 532                          * only allow replace/delete with no values
 533                          */
 534                         snprintf( textbuf, textlen,
 535                                 "%s: attribute is obsolete",
 536                                 ml->sml_type.bv_val );
 537                         *text = textbuf;
 538                         return LDAP_CONSTRAINT_VIOLATION;
 539                 }
 540
 541                 /*
 542                  * check values
 543                  */
 544                 if( ml->sml_bvalues != NULL ) {
 545                         ber_len_t nvals;
 546                         slap_syntax_validate_func *validate =
 547                                 ad->ad_type->sat_syntax->ssyn_validate;
 548                         slap_syntax_transform_func *pretty =
 549                                 ad->ad_type->sat_syntax->ssyn_pretty;
 550
 551                         if( !pretty && !validate ) {
 552                                 *text = "no validator for syntax";
 553                                 snprintf( textbuf, textlen,
 554                                         "%s: no validator for syntax %s",
 555                                         ml->sml_type.bv_val,
 556                                         ad->ad_type->sat_syntax->ssyn_oid );
 557                                 *text = textbuf;
 558                                 return LDAP_INVALID_SYNTAX;
 559                         }
 560
 561                         /*
 562                          * check that each value is valid per syntax
 563                          *      and pretty if appropriate
 564                          */
 565                         for( nvals = 0; ml->sml_bvalues[nvals].bv_val; nvals++ ) {
 566                                 struct berval pval;
 567                                 if( pretty ) {
 568                                         rc = pretty( ad->ad_type->sat_syntax,
 569                                                 &ml->sml_bvalues[nvals], &pval );
 570                                 } else {
 571                                         rc = validate( ad->ad_type->sat_syntax,
 572                                                 &ml->sml_bvalues[nvals] );
 573                                 }
 574
 575                                 if( rc != 0 ) {
 576                                         snprintf( textbuf, textlen,
 577                                                 "%s: value #%ld invalid per syntax",
 578                                                 ml->sml_type.bv_val, (long) nvals );
 579                                         *text = textbuf;
 580                                         return LDAP_INVALID_SYNTAX;
 581                                 }
 582
 583                                 if( pretty ) {
 584                                         ber_memfree( ml->sml_bvalues[nvals].bv_val );
 585                                         ml->sml_bvalues[nvals] = pval;
 586                                 }
 587                         }
 588
 589                         /*
 590                          * a rough single value check... an additional check is needed
 591                          * to catch add of single value to existing single valued attribute
 592                          */
 593                         if( ( ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE )
 594                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 595                         {
 596                                 snprintf( textbuf, textlen,
 597                                         "%s: multiple value provided",
 598                                         ml->sml_type.bv_val );
 599                                 *text = textbuf;
 600                                 return LDAP_CONSTRAINT_VIOLATION;
 601                         }
 602                 }
 603         }
 604
 605         return LDAP_SUCCESS;
 606 }
 607
 608 int slap_mods_opattrs(
 609         Backend *be,
 610         Operation *op,
 611         Modifications *mods,
 612         Modifications **modtail,
 613         const char **text,
 614         char *textbuf, size_t textlen )
 615 {
 616         struct berval name, timestamp, csn;
 617         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 618         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 619         Modifications *mod;
 620
 621         int mop = op->o_tag == LDAP_REQ_ADD
 622                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 623
 624         assert( modtail != NULL );
 625         assert( *modtail == NULL );
 626
 627         if( SLAP_LASTMOD(be) ) {
 628                 struct tm *ltm;
 629                 time_t now = slap_get_time();
 630
 631                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 632                 ltm = gmtime( &now );
 633                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 634
 635                 csn.bv_len = lutil_csnstr( csnbuf, sizeof( csnbuf ), 0, 0 );
 636                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 637                 csn.bv_val = csnbuf;
 638
 639                 timestamp.bv_val = timebuf;
 640                 timestamp.bv_len = strlen(timebuf);
 641
 642                 if( op->o_dn.bv_len == 0 ) {
 643                         name.bv_val = SLAPD_ANONYMOUS;
 644                         name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
 645                 } else {
 646                         name = op->o_dn;
 647                 }
 648         }
 649
 650         if( op->o_tag == LDAP_REQ_ADD ) {
 651                 struct berval tmpval;
 652
 653                 if( global_schemacheck ) {
 654                         int rc = mods_structural_class( mods, &tmpval,
 655                                 text, textbuf, textlen );
 656                         if( rc != LDAP_SUCCESS ) {
 657                                 return rc;
 658                         }
 659
 660                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 661                         mod->sml_op = mop;
 662                         mod->sml_type.bv_val = NULL;
 663                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 664                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 665                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 666                         mod->sml_bvalues[1].bv_val = NULL;
 667                         assert( mod->sml_bvalues[0].bv_val );
 668                         *modtail = mod;
 669                         modtail = &mod->sml_next;
 670                 }
 671
 672                 if( SLAP_LASTMOD(be) ) {
 673                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 674
 675                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 676                         tmpval.bv_val = uuidbuf;
 677
 678                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 679                         mod->sml_op = mop;
 680                         mod->sml_type.bv_val = NULL;
 681                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 682                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 683                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 684                         mod->sml_bvalues[1].bv_val = NULL;
 685                         assert( mod->sml_bvalues[0].bv_val );
 686                         *modtail = mod;
 687                         modtail = &mod->sml_next;
 688
 689                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 690                         mod->sml_op = mop;
 691                         mod->sml_type.bv_val = NULL;
 692                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 693                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 694                         ber_dupbv( &mod->sml_bvalues[0], &name );
 695                         mod->sml_bvalues[1].bv_val = NULL;
 696                         assert( mod->sml_bvalues[0].bv_val );
 697                         *modtail = mod;
 698                         modtail = &mod->sml_next;
 699
 700                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 701                         mod->sml_op = mop;
 702                         mod->sml_type.bv_val = NULL;
 703                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 704                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 705                         ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 706                         mod->sml_bvalues[1].bv_val = NULL;
 707                         assert( mod->sml_bvalues[0].bv_val );
 708                         *modtail = mod;
 709                         modtail = &mod->sml_next;
 710                 }
 711         }
 712
 713         if( SLAP_LASTMOD(be) ) {
 714                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 715                 mod->sml_op = mop;
 716                 mod->sml_type.bv_val = NULL;
 717                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 718                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 719                 ber_dupbv( &mod->sml_bvalues[0], &csn );
 720                 mod->sml_bvalues[1].bv_val = NULL;
 721                 assert( mod->sml_bvalues[0].bv_val );
 722                 *modtail = mod;
 723                 modtail = &mod->sml_next;
 724
 725                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 726                 mod->sml_op = mop;
 727                 mod->sml_type.bv_val = NULL;
 728                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 729                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 730                 ber_dupbv( &mod->sml_bvalues[0], &name );
 731                 mod->sml_bvalues[1].bv_val = NULL;
 732                 assert( mod->sml_bvalues[0].bv_val );
 733                 *modtail = mod;
 734                 modtail = &mod->sml_next;
 735
 736                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 737                 mod->sml_op = mop;
 738                 mod->sml_type.bv_val = NULL;
 739                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 740                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 741                 ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 742                 mod->sml_bvalues[1].bv_val = NULL;
 743                 assert( mod->sml_bvalues[0].bv_val );
 744                 *modtail = mod;
 745                 modtail = &mod->sml_next;
 746         }
 747
 748         *modtail = NULL;
 749         return LDAP_SUCCESS;
 750 }