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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2004 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 (c) 1995 Regents of the University of Michigan.
  16  * All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms are permitted
  19  * provided that this notice is preserved and that due credit is given
  20  * to the University of Michigan at Ann Arbor. The name of the University
  21  * may not be used to endorse or promote products derived from this
  22  * software without specific prior written permission. This software
  23  * is provided ``as is'' without express or implied warranty.
  24  */
  25
  26 #include "portable.h"
  27
  28 #include <stdio.h>
  29
  30 #include <ac/socket.h>
  31 #include <ac/string.h>
  32 #include <ac/time.h>
  33
  34 #include "ldap_pvt.h"
  35 #include "slap.h"
  36 #ifdef LDAP_SLAPI
  37 #include "slapi/slapi.h"
  38 #endif
  39 #include "lutil.h"
  40
  41
  42 int
  43 do_modify(
  44     Operation   *op,
  45     SlapReply   *rs )
  46 {
  47         struct berval dn = BER_BVNULL;
  48         char            *last;
  49         ber_tag_t       tag;
  50         ber_len_t       len;
  51         Modifications   *modlist = NULL;
  52         Modifications   **modtail = &modlist;
  53         int             increment = 0;
  54
  55         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  56
  57         /*
  58          * Parse the modify request.  It looks like this:
  59          *
  60          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  61          *              name    DistinguishedName,
  62          *              mods    SEQUENCE OF SEQUENCE {
  63          *                      operation       ENUMERATED {
  64          *                              add     (0),
  65          *                              delete  (1),
  66          *                              replace (2)
  67          *                      },
  68          *                      modification    SEQUENCE {
  69          *                              type    AttributeType,
  70          *                              values  SET OF AttributeValue
  71          *                      }
  72          *              }
  73          *      }
  74          */
  75
  76         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  77                 Debug( LDAP_DEBUG_ANY, "do_modify: 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         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  84
  85         /* collect modifications & save for later */
  86         for ( tag = ber_first_element( op->o_ber, &len, &last );
  87             tag != LBER_DEFAULT;
  88             tag = ber_next_element( op->o_ber, &len, last ) )
  89         {
  90                 ber_int_t mop;
  91                 Modifications tmp, *mod;
  92
  93                 tmp.sml_nvalues = NULL;
  94
  95                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
  96                     &tmp.sml_type, &tmp.sml_values ) == LBER_ERROR )
  97                 {
  98                         send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR,
  99                                 "decoding modlist error" );
 100                         rs->sr_err = SLAPD_DISCONNECT;
 101                         goto cleanup;
 102                 }
 103
 104                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 105                 mod->sml_op = mop;
 106                 mod->sml_type = tmp.sml_type;
 107                 mod->sml_values = tmp.sml_values;
 108                 mod->sml_nvalues = NULL;
 109                 mod->sml_desc = NULL;
 110                 mod->sml_next = NULL;
 111                 *modtail = mod;
 112
 113                 switch( mop ) {
 114                 case LDAP_MOD_ADD:
 115                         if ( mod->sml_values == NULL ) {
 116                                 Debug( LDAP_DEBUG_ANY,
 117                                         "do_modify: modify/add operation (%ld) requires values\n",
 118                                         (long) mop, 0, 0 );
 119
 120                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 121                                         "modify/add operation requires values" );
 122                                 goto cleanup;
 123                         }
 124
 125                         /* fall through */
 126
 127                 case LDAP_MOD_DELETE:
 128                 case LDAP_MOD_REPLACE:
 129                         break;
 130
 131                 case LDAP_MOD_INCREMENT:
 132                         if( op->o_protocol >= LDAP_VERSION3 ) {
 133                                 increment++;
 134                                 if ( mod->sml_values == NULL ) {
 135                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 136                                                 "modify/increment operation (%ld) requires value\n",
 137                                                 (long) mop, 0, 0 );
 138
 139                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 140                                                 "modify/increment operation requires value" );
 141                                         goto cleanup;
 142                                 }
 143
 144                                 if( mod->sml_values[1].bv_val ) {
 145                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 146                                                 "operation (%ld) requires single value\n",
 147                                                 (long) mop, 0, 0 );
 148
 149                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 150                                                 "modify/increment operation requires single value" );
 151                                         goto cleanup;
 152                                 }
 153
 154                                 break;
 155                         }
 156                         /* fall thru */
 157
 158                 default: {
 159                                 Debug( LDAP_DEBUG_ANY,
 160                                         "do_modify: unrecognized modify operation (%ld)\n",
 161                                         (long) mop, 0, 0 );
 162
 163                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 164                                         "unrecognized modify operation" );
 165                                 goto cleanup;
 166                         }
 167                 }
 168
 169                 modtail = &mod->sml_next;
 170         }
 171         *modtail = NULL;
 172
 173         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 174                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 175
 176                 goto cleanup;
 177         }
 178
 179         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 180                 op->o_tmpmemctx );
 181         if( rs->sr_err != LDAP_SUCCESS ) {
 182                 Debug( LDAP_DEBUG_ANY,
 183                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 184                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 185                 goto cleanup;
 186         }
 187
 188         /* FIXME: temporary */
 189         op->orm_modlist = modlist;
 190         op->orm_increment = increment;
 191
 192         op->o_bd = frontendDB;
 193         rs->sr_err = frontendDB->be_modify( op, rs );
 194
 195 cleanup:
 196         slap_graduate_commit_csn( op );
 197
 198         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 199         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 200         if ( modlist != NULL ) slap_mods_free( modlist );
 201
 202         return rs->sr_err;
 203 }
 204
 205 int
 206 fe_op_modify( Operation *op, SlapReply *rs )
 207 {
 208 #ifdef LDAP_DEBUG
 209         Modifications   *tmp;
 210 #endif
 211         int             manageDSAit;
 212         Modifications   *modlist = op->orm_modlist;
 213         Modifications   **modtail = &modlist;
 214 #ifdef LDAP_SLAPI
 215         LDAPMod         **modv = NULL;
 216 #endif
 217         int             increment = op->orm_increment;
 218
 219         if( op->o_req_ndn.bv_len == 0 ) {
 220                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 221
 222                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 223                         "modify upon the root DSE not supported" );
 224                 goto cleanup;
 225
 226         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 227                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 228
 229                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 230                         "modification of subschema subentry not supported" );
 231                 goto cleanup;
 232         }
 233
 234 #ifdef LDAP_DEBUG
 235         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 236
 237         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 238                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 239                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 240                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 241                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 242                                         "replace")), tmp->sml_type.bv_val, 0 );
 243
 244                 if ( tmp->sml_values == NULL ) {
 245                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 246                            "\t\tno values", NULL, NULL );
 247                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 248                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 249                            "\t\tzero values", NULL, NULL );
 250                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 251                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 252                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 253                 } else {
 254                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 255                            "\t\tmultiple values", NULL, NULL );
 256                 }
 257         }
 258
 259         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 260                 char abuf[BUFSIZ/2], *ptr = abuf;
 261                 int len = 0;
 262
 263                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 264                         op->o_connid, op->o_opid, op->o_req_dn.bv_val, 0, 0 );
 265
 266                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 267                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 268                                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 269                                     op->o_connid, op->o_opid, abuf, 0, 0 );
 270
 271                         len = 0;
 272                                 ptr = abuf;
 273
 274                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 275                                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 276                                                 op->o_connid, op->o_opid, tmp->sml_type.bv_val, 0, 0 );
 277                                         continue;
 278                                 }
 279                         }
 280                         if (len) {
 281                                 *ptr++ = ' ';
 282                                 len++;
 283                         }
 284                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 285                         len += tmp->sml_type.bv_len;
 286                 }
 287                 if (len) {
 288                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 289                                 op->o_connid, op->o_opid, abuf, 0, 0 );
 290                 }
 291         }
 292 #endif  /* LDAP_DEBUG */
 293
 294         manageDSAit = get_manageDSAit( op );
 295
 296         /*
 297          * We could be serving multiple database backends.  Select the
 298          * appropriate one, or send a referral to our "referral server"
 299          * if we don't hold it.
 300          */
 301         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 302         if ( op->o_bd == NULL ) {
 303                 rs->sr_ref = referral_rewrite( default_referral,
 304                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 305                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 306
 307                 if (rs->sr_ref != NULL ) {
 308                         rs->sr_err = LDAP_REFERRAL;
 309                         send_ldap_result( op, rs );
 310
 311                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 312                 } else {
 313                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 314                                 "no global superior knowledge" );
 315                 }
 316                 goto cleanup;
 317         }
 318
 319         /* check restrictions */
 320         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 321                 send_ldap_result( op, rs );
 322                 goto cleanup;
 323         }
 324
 325         /* check for referrals */
 326         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 327                 goto cleanup;
 328         }
 329
 330         /* check for modify/increment support */
 331         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 332                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 333                         "modify/increment not supported in context" );
 334         }
 335
 336 #if defined( LDAP_SLAPI )
 337 #define pb      op->o_pb
 338         if ( pb ) {
 339                 slapi_int_pblock_set_operation( pb, op );
 340                 slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)op->o_req_dn.bv_val );
 341                 slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 342                 modv = slapi_int_modifications2ldapmods( &modlist );
 343                 slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 344
 345                 rs->sr_err = slapi_int_call_plugins( op->o_bd,
 346                         SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 347
 348                 /*
 349                  * It's possible that the preoperation plugin changed the
 350                  * modification array, so we need to convert it back to
 351                  * a Modification list.
 352                  *
 353                  * Calling slapi_int_modifications2ldapmods() destroyed modlist so
 354                  * we don't need to free it.
 355                  */
 356                 slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 357                 modlist = slapi_int_ldapmods2modifications( modv );
 358
 359                 if ( rs->sr_err < 0 ) {
 360                         /*
 361                          * A preoperation plugin failure will abort the
 362                          * entire operation.
 363                          */
 364                         Debug(LDAP_DEBUG_TRACE,
 365                                 "do_modify: modify preoperation plugin failed.\n",
 366                                 0, 0, 0);
 367                         if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
 368                                 (void *)&rs->sr_err ) != 0 ) || rs->sr_err == LDAP_SUCCESS )
 369                         {
 370                                 rs->sr_err = LDAP_OTHER;
 371                         }
 372                         slapi_int_free_ldapmods( modv );
 373                         modv = NULL;
 374                         goto cleanup;
 375                 }
 376         }
 377
 378         /*
 379          * NB: it is valid for the plugin to return no modifications
 380          * (for example, a plugin might store some attributes elsewhere
 381          * and remove them from the modification list; if only those
 382          * attribute types were included in the modification request,
 383          * then slapi_int_ldapmods2modifications() above will return
 384          * NULL).
 385          *
 386          * However, the post-operation plugin should still be
 387          * called.
 388          */
 389 #endif /* defined( LDAP_SLAPI ) */
 390
 391         /*
 392          * do the modify if 1 && (2 || 3)
 393          * 1) there is a modify function implemented in this backend;
 394          * 2) this backend is master for what it holds;
 395          * 3) it's a replica and the dn supplied is the update_ndn.
 396          */
 397         if ( op->o_bd->be_modify ) {
 398                 /* do the update here */
 399                 int repl_user = be_isupdate( op );
 400
 401                 /* Multimaster slapd does not have to check for replicator dn
 402                  * because it accepts each modify request
 403                  */
 404 #ifndef SLAPD_MULTIMASTER
 405                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 406 #endif
 407                 {
 408                         int update = op->o_bd->be_update_ndn.bv_len;
 409                         char textbuf[SLAP_TEXT_BUFLEN];
 410                         size_t textlen = sizeof textbuf;
 411                         slap_callback cb = { NULL, slap_replog_cb, NULL, NULL };
 412
 413                         rs->sr_err = slap_mods_check( modlist, update, &rs->sr_text,
 414                                 textbuf, textlen, NULL );
 415
 416                         if( rs->sr_err != LDAP_SUCCESS ) {
 417                                 send_ldap_result( op, rs );
 418                                 goto cleanup;
 419                         }
 420
 421                         if ( !repl_user ) {
 422                                 for( modtail = &modlist;
 423                                         *modtail != NULL;
 424                                         modtail = &(*modtail)->sml_next )
 425                                 {
 426                                         /* empty */
 427                                 }
 428
 429                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 430                                         &rs->sr_text, textbuf, textlen, 1 );
 431                                 if( rs->sr_err != LDAP_SUCCESS ) {
 432                                         send_ldap_result( op, rs );
 433                                         goto cleanup;
 434                                 }
 435                         }
 436
 437                         op->orm_modlist = modlist;
 438 #ifdef SLAPD_MULTIMASTER
 439                         if ( !repl_user )
 440 #endif
 441                         {
 442                                 /* but we log only the ones not from a replicator user */
 443                                 cb.sc_next = op->o_callback;
 444                                 op->o_callback = &cb;
 445                         }
 446                         op->o_bd->be_modify( op, rs );
 447
 448 #ifndef SLAPD_MULTIMASTER
 449                 /* send a referral */
 450                 } else {
 451                         BerVarray defref = op->o_bd->be_update_refs
 452                                 ? op->o_bd->be_update_refs : default_referral;
 453                         if ( defref != NULL ) {
 454                                 rs->sr_ref = referral_rewrite( defref,
 455                                         NULL, &op->o_req_dn,
 456                                         LDAP_SCOPE_DEFAULT );
 457                                 if (!rs->sr_ref) rs->sr_ref = defref;
 458                                 rs->sr_err = LDAP_REFERRAL;
 459                                 send_ldap_result( op, rs );
 460                                 if (rs->sr_ref != defref) {
 461                                         ber_bvarray_free( rs->sr_ref );
 462                                 }
 463                         } else {
 464                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 465                                         "shadow context; no update referral" );
 466                         }
 467 #endif
 468                 }
 469         } else {
 470                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 471                     "operation not supported within namingContext" );
 472         }
 473
 474 #if defined( LDAP_SLAPI )
 475         if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
 476                 SLAPI_PLUGIN_POST_MODIFY_FN, pb ) < 0 )
 477         {
 478                 Debug(LDAP_DEBUG_TRACE,
 479                         "do_modify: modify postoperation plugins failed.\n", 0, 0, 0);
 480         }
 481 #endif /* defined( LDAP_SLAPI ) */
 482
 483 cleanup:;
 484 #if defined( LDAP_SLAPI )
 485         if ( modv != NULL ) slapi_int_free_ldapmods( modv );
 486 #endif
 487
 488         return rs->sr_err;
 489 }
 490
 491 /*
 492  * Do basic attribute type checking and syntax validation.
 493  */
 494 int slap_mods_check(
 495         Modifications *ml,
 496         int update,
 497         const char **text,
 498         char *textbuf,
 499         size_t textlen,
 500         void *ctx )
 501 {
 502         int rc;
 503
 504         for( ; ml != NULL; ml = ml->sml_next ) {
 505                 AttributeDescription *ad = NULL;
 506
 507                 /* convert to attribute description */
 508                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 509
 510                 if( rc != LDAP_SUCCESS ) {
 511                         snprintf( textbuf, textlen, "%s: %s",
 512                                 ml->sml_type.bv_val, *text );
 513                         *text = textbuf;
 514                         return rc;
 515                 }
 516
 517                 ad = ml->sml_desc;
 518
 519                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 520                         && !slap_ad_is_binary( ad ))
 521                 {
 522                         /* attribute requires binary transfer */
 523                         snprintf( textbuf, textlen,
 524                                 "%s: requires ;binary transfer",
 525                                 ml->sml_type.bv_val );
 526                         *text = textbuf;
 527                         return LDAP_UNDEFINED_TYPE;
 528                 }
 529
 530                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 531                         && slap_ad_is_binary( ad ))
 532                 {
 533                         /* attribute does not require binary transfer */
 534                         snprintf( textbuf, textlen,
 535                                 "%s: disallows ;binary transfer",
 536                                 ml->sml_type.bv_val );
 537                         *text = textbuf;
 538                         return LDAP_UNDEFINED_TYPE;
 539                 }
 540
 541                 if( slap_ad_is_tag_range( ad )) {
 542                         /* attribute requires binary transfer */
 543                         snprintf( textbuf, textlen,
 544                                 "%s: inappropriate use of tag range option",
 545                                 ml->sml_type.bv_val );
 546                         *text = textbuf;
 547                         return LDAP_UNDEFINED_TYPE;
 548                 }
 549
 550                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 551                         /* user modification disallowed */
 552                         snprintf( textbuf, textlen,
 553                                 "%s: no user modification allowed",
 554                                 ml->sml_type.bv_val );
 555                         *text = textbuf;
 556                         return LDAP_CONSTRAINT_VIOLATION;
 557                 }
 558
 559                 if ( is_at_obsolete( ad->ad_type ) &&
 560                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 561                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 562                                         ml->sml_values != NULL ))
 563                 {
 564                         /*
 565                          * attribute is obsolete,
 566                          * only allow replace/delete with no values
 567                          */
 568                         snprintf( textbuf, textlen,
 569                                 "%s: attribute is obsolete",
 570                                 ml->sml_type.bv_val );
 571                         *text = textbuf;
 572                         return LDAP_CONSTRAINT_VIOLATION;
 573                 }
 574
 575                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 576 #ifdef SLAPD_REAL_SYNTAX
 577                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 578 #endif
 579                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 580                 {
 581                         /*
 582                          * attribute values must be INTEGER or REAL
 583                          */
 584                         snprintf( textbuf, textlen,
 585                                 "%s: attribute syntax inappropriate for increment",
 586                                 ml->sml_type.bv_val );
 587                         *text = textbuf;
 588                         return LDAP_CONSTRAINT_VIOLATION;
 589                 }
 590
 591                 /*
 592                  * check values
 593                  */
 594                 if( ml->sml_values != NULL ) {
 595                         ber_len_t nvals;
 596                         slap_syntax_validate_func *validate =
 597                                 ad->ad_type->sat_syntax->ssyn_validate;
 598                         slap_syntax_transform_func *pretty =
 599                                 ad->ad_type->sat_syntax->ssyn_pretty;
 600
 601                         if( !pretty && !validate ) {
 602                                 *text = "no validator for syntax";
 603                                 snprintf( textbuf, textlen,
 604                                         "%s: no validator for syntax %s",
 605                                         ml->sml_type.bv_val,
 606                                         ad->ad_type->sat_syntax->ssyn_oid );
 607                                 *text = textbuf;
 608                                 return LDAP_INVALID_SYNTAX;
 609                         }
 610
 611                         /*
 612                          * check that each value is valid per syntax
 613                          *      and pretty if appropriate
 614                          */
 615                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 616                                 struct berval pval;
 617                                 if( pretty ) {
 618                                         rc = pretty( ad->ad_type->sat_syntax,
 619                                                 &ml->sml_values[nvals], &pval, ctx );
 620                                 } else {
 621                                         rc = validate( ad->ad_type->sat_syntax,
 622                                                 &ml->sml_values[nvals] );
 623                                 }
 624
 625                                 if( rc != 0 ) {
 626                                         snprintf( textbuf, textlen,
 627                                                 "%s: value #%ld invalid per syntax",
 628                                                 ml->sml_type.bv_val, (long) nvals );
 629                                         *text = textbuf;
 630                                         return LDAP_INVALID_SYNTAX;
 631                                 }
 632
 633                                 if( pretty ) {
 634                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 635                                         ml->sml_values[nvals] = pval;
 636                                 }
 637                         }
 638
 639                         /*
 640                          * a rough single value check... an additional check is needed
 641                          * to catch add of single value to existing single valued attribute
 642                          */
 643                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 644                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 645                         {
 646                                 snprintf( textbuf, textlen,
 647                                         "%s: multiple values provided",
 648                                         ml->sml_type.bv_val );
 649                                 *text = textbuf;
 650                                 return LDAP_CONSTRAINT_VIOLATION;
 651                         }
 652
 653                         /* if the type has a normalizer, generate the
 654                          * normalized values. otherwise leave them NULL.
 655                          *
 656                          * this is different from the rule for attributes
 657                          * in an entry - in an attribute list, the normalized
 658                          * value is set equal to the non-normalized value
 659                          * when there is no normalizer.
 660                          */
 661                         if( nvals && ad->ad_type->sat_equality &&
 662                                 ad->ad_type->sat_equality->smr_normalize )
 663                         {
 664                                 ml->sml_nvalues = ber_memalloc_x(
 665                                         (nvals+1)*sizeof(struct berval), ctx );
 666
 667                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 668                                         rc = ad->ad_type->sat_equality->smr_normalize(
 669                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 670                                                 ad->ad_type->sat_syntax,
 671                                                 ad->ad_type->sat_equality,
 672                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 673                                         if( rc ) {
 674                                                 Debug( LDAP_DEBUG_ANY,
 675                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 676                                                         rc, 0, 0 );
 677                                                 snprintf( textbuf, textlen,
 678                                                         "%s: value #%ld normalization failed",
 679                                                         ml->sml_type.bv_val, (long) nvals );
 680                                                 *text = textbuf;
 681                                                 return rc;
 682                                         }
 683                                 }
 684
 685                                 ml->sml_nvalues[nvals].bv_val = NULL;
 686                                 ml->sml_nvalues[nvals].bv_len = 0;
 687                         }
 688
 689                         if( nvals ) {
 690                                 /* check for duplicates */
 691                                 int             i, j;
 692                                 MatchingRule *mr = ad->ad_type->sat_equality;
 693
 694                                 /* check if the values we're adding already exist */
 695                                 if( mr == NULL || !mr->smr_match ) {
 696                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 697                                                 /* test asserted values against themselves */
 698                                                 for( j = 0; j < i; j++ ) {
 699                                                         if ( bvmatch( &ml->sml_values[i],
 700                                                                 &ml->sml_values[j] ) )
 701                                                         {
 702                                                                 /* value exists already */
 703                                                                 snprintf( textbuf, textlen,
 704                                                                         "%s: value #%d provided more than once",
 705                                                                         ml->sml_desc->ad_cname.bv_val, j );
 706                                                                 *text = textbuf;
 707                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 708                                                         }
 709                                                 }
 710                                         }
 711
 712                                 } else {
 713                                         int rc;
 714                                         int match;
 715
 716                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 717                                                 /* test asserted values against themselves */
 718                                                 for( j = 0; j < i; j++ ) {
 719                                                         rc = value_match( &match, ml->sml_desc, mr,
 720                                                                 SLAP_MR_EQUALITY
 721                                                                         | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 722                                                                         | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 723                                                                         | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 724                                                                 ml->sml_nvalues
 725                                                                         ? &ml->sml_nvalues[i]
 726                                                                         : &ml->sml_values[i],
 727                                                                 ml->sml_nvalues
 728                                                                         ? &ml->sml_nvalues[j]
 729                                                                         : &ml->sml_values[j],
 730                                                                 text );
 731                                                         if ( rc == LDAP_SUCCESS && match == 0 ) {
 732                                                                 /* value exists already */
 733                                                                 snprintf( textbuf, textlen,
 734                                                                         "%s: value #%d provided more than once",
 735                                                                         ml->sml_desc->ad_cname.bv_val, j );
 736                                                                 *text = textbuf;
 737                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 738
 739                                                         } else if ( rc != LDAP_SUCCESS ) {
 740                                                                 return rc;
 741                                                         }
 742                                                 }
 743                                         }
 744                                 }
 745                         }
 746
 747                 }
 748         }
 749
 750         return LDAP_SUCCESS;
 751 }
 752
 753 int slap_mods_opattrs(
 754         Operation *op,
 755         Modifications *mods,
 756         Modifications **modtail,
 757         const char **text,
 758         char *textbuf, size_t textlen,
 759         int manage_ctxcsn )
 760 {
 761         struct berval name, timestamp, csn;
 762         struct berval nname;
 763         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 764         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 765         Modifications *mod;
 766
 767         int mop = op->o_tag == LDAP_REQ_ADD
 768                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 769
 770         assert( modtail != NULL );
 771         assert( *modtail == NULL );
 772
 773         if ( SLAP_LASTMOD( op->o_bd )) {
 774                 struct tm *ltm;
 775 #ifdef HAVE_GMTIME_R
 776                 struct tm ltm_buf;
 777 #endif
 778                 time_t now = slap_get_time();
 779
 780 #ifdef HAVE_GMTIME_R
 781                 ltm = gmtime_r( &now, &ltm_buf );
 782 #else
 783                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 784                 ltm = gmtime( &now );
 785 #endif /* HAVE_GMTIME_R */
 786                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 787
 788                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 789
 790 #ifndef HAVE_GMTIME_R
 791                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 792 #endif
 793
 794                 timestamp.bv_val = timebuf;
 795                 timestamp.bv_len = strlen(timebuf);
 796
 797                 if( op->o_dn.bv_len == 0 ) {
 798                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 799                         nname = name;
 800                 } else {
 801                         name = op->o_dn;
 802                         nname = op->o_ndn;
 803                 }
 804         }
 805
 806         if( op->o_tag == LDAP_REQ_ADD ) {
 807                 struct berval tmpval;
 808
 809                 if( global_schemacheck ) {
 810                         int rc = mods_structural_class( mods, &tmpval,
 811                                 text, textbuf, textlen );
 812                         if( rc != LDAP_SUCCESS ) return rc;
 813
 814                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 815                         mod->sml_op = mop;
 816                         mod->sml_type.bv_val = NULL;
 817                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 818                         mod->sml_values =
 819                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 820                         ber_dupbv( &mod->sml_values[0], &tmpval );
 821                         mod->sml_values[1].bv_len = 0;
 822                         mod->sml_values[1].bv_val = NULL;
 823                         assert( mod->sml_values[0].bv_val );
 824                         mod->sml_nvalues =
 825                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 826                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 827                         mod->sml_nvalues[1].bv_len = 0;
 828                         mod->sml_nvalues[1].bv_val = NULL;
 829                         assert( mod->sml_nvalues[0].bv_val );
 830                         *modtail = mod;
 831                         modtail = &mod->sml_next;
 832                 }
 833
 834                 if ( SLAP_LASTMOD( op->o_bd )) {
 835                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 836
 837                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 838                         tmpval.bv_val = uuidbuf;
 839
 840                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 841                         mod->sml_op = mop;
 842                         mod->sml_type.bv_val = NULL;
 843                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 844                         mod->sml_values =
 845                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 846                         ber_dupbv( &mod->sml_values[0], &tmpval );
 847                         mod->sml_values[1].bv_len = 0;
 848                         mod->sml_values[1].bv_val = NULL;
 849                         assert( mod->sml_values[0].bv_val );
 850                         mod->sml_nvalues =
 851                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 852                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 853                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 854                                         mod->sml_desc->ad_type->sat_syntax,
 855                                         mod->sml_desc->ad_type->sat_equality,
 856                                         mod->sml_values, mod->sml_nvalues, NULL );
 857                         mod->sml_nvalues[1].bv_len = 0;
 858                         mod->sml_nvalues[1].bv_val = NULL;
 859                         *modtail = mod;
 860                         modtail = &mod->sml_next;
 861
 862                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 863                         mod->sml_op = mop;
 864                         mod->sml_type.bv_val = NULL;
 865                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 866                         mod->sml_values =
 867                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 868                         ber_dupbv( &mod->sml_values[0], &name );
 869                         mod->sml_values[1].bv_len = 0;
 870                         mod->sml_values[1].bv_val = NULL;
 871                         assert( mod->sml_values[0].bv_val );
 872                         mod->sml_nvalues =
 873                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 874                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 875                         mod->sml_nvalues[1].bv_len = 0;
 876                         mod->sml_nvalues[1].bv_val = NULL;
 877                         assert( mod->sml_nvalues[0].bv_val );
 878                         *modtail = mod;
 879                         modtail = &mod->sml_next;
 880
 881                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 882                         mod->sml_op = mop;
 883                         mod->sml_type.bv_val = NULL;
 884                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 885                         mod->sml_values =
 886                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 887                         ber_dupbv( &mod->sml_values[0], &timestamp );
 888                         mod->sml_values[1].bv_len = 0;
 889                         mod->sml_values[1].bv_val = NULL;
 890                         assert( mod->sml_values[0].bv_val );
 891                         mod->sml_nvalues = NULL;
 892                         *modtail = mod;
 893                         modtail = &mod->sml_next;
 894                 }
 895         }
 896
 897         if ( SLAP_LASTMOD( op->o_bd )) {
 898                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 899                 mod->sml_op = mop;
 900                 mod->sml_type.bv_val = NULL;
 901                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 902                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 903                 ber_dupbv( &mod->sml_values[0], &csn );
 904                 mod->sml_values[1].bv_len = 0;
 905                 mod->sml_values[1].bv_val = NULL;
 906                 assert( mod->sml_values[0].bv_val );
 907                 mod->sml_nvalues = NULL;
 908                 *modtail = mod;
 909                 modtail = &mod->sml_next;
 910
 911                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 912                 mod->sml_op = mop;
 913                 mod->sml_type.bv_val = NULL;
 914                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 915                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 916                 ber_dupbv( &mod->sml_values[0], &name );
 917                 mod->sml_values[1].bv_len = 0;
 918                 mod->sml_values[1].bv_val = NULL;
 919                 assert( mod->sml_values[0].bv_val );
 920                 mod->sml_nvalues =
 921                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 922                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 923                 mod->sml_nvalues[1].bv_len = 0;
 924                 mod->sml_nvalues[1].bv_val = NULL;
 925                 assert( mod->sml_nvalues[0].bv_val );
 926                 *modtail = mod;
 927                 modtail = &mod->sml_next;
 928
 929                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 930                 mod->sml_op = mop;
 931                 mod->sml_type.bv_val = NULL;
 932                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 933                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 934                 ber_dupbv( &mod->sml_values[0], &timestamp );
 935                 mod->sml_values[1].bv_len = 0;
 936                 mod->sml_values[1].bv_val = NULL;
 937                 assert( mod->sml_values[0].bv_val );
 938                 mod->sml_nvalues = NULL;
 939                 *modtail = mod;
 940                 modtail = &mod->sml_next;
 941         }
 942
 943         *modtail = NULL;
 944         return LDAP_SUCCESS;
 945 }
 946