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 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15 /* Portions Copyright (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 "slap.h"
  35 #include "lutil.h"
  36
  37
  38 int
  39 do_modify(
  40     Operation   *op,
  41     SlapReply   *rs )
  42 {
  43         struct berval dn = BER_BVNULL;
  44         char            *last;
  45         ber_tag_t       tag;
  46         ber_len_t       len;
  47         Modifications   *modlist = NULL;
  48         Modifications   **modtail = &modlist;
  49         int             increment = 0;
  50         char            textbuf[ SLAP_TEXT_BUFLEN ];
  51         size_t          textlen = sizeof( textbuf );
  52
  53         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  54
  55         /*
  56          * Parse the modify request.  It looks like this:
  57          *
  58          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  59          *              name    DistinguishedName,
  60          *              mods    SEQUENCE OF SEQUENCE {
  61          *                      operation       ENUMERATED {
  62          *                              add     (0),
  63          *                              delete  (1),
  64          *                              replace (2)
  65          *                      },
  66          *                      modification    SEQUENCE {
  67          *                              type    AttributeType,
  68          *                              values  SET OF AttributeValue
  69          *                      }
  70          *              }
  71          *      }
  72          */
  73
  74         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  75                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  76
  77                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  78                 return SLAPD_DISCONNECT;
  79         }
  80
  81         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  82
  83         /* collect modifications & save for later */
  84         for ( tag = ber_first_element( op->o_ber, &len, &last );
  85             tag != LBER_DEFAULT;
  86             tag = ber_next_element( op->o_ber, &len, last ) )
  87         {
  88                 ber_int_t mop;
  89                 Modifications tmp, *mod;
  90
  91                 tmp.sml_nvalues = NULL;
  92
  93                 if ( ber_scanf( op->o_ber, "{e{m[W]}}", &mop,
  94                     &tmp.sml_type, &tmp.sml_values ) == LBER_ERROR )
  95                 {
  96                         send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR,
  97                                 "decoding modlist error" );
  98                         rs->sr_err = SLAPD_DISCONNECT;
  99                         goto cleanup;
 100                 }
 101
 102                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 103                 mod->sml_op = mop;
 104                 mod->sml_flags = 0;
 105                 mod->sml_type = tmp.sml_type;
 106                 mod->sml_values = tmp.sml_values;
 107                 mod->sml_nvalues = NULL;
 108                 mod->sml_desc = NULL;
 109                 mod->sml_next = NULL;
 110                 *modtail = mod;
 111
 112                 switch( mop ) {
 113                 case LDAP_MOD_ADD:
 114                         if ( mod->sml_values == NULL ) {
 115                                 Debug( LDAP_DEBUG_ANY,
 116                                         "do_modify: modify/add operation (%ld) requires values\n",
 117                                         (long) mop, 0, 0 );
 118
 119                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 120                                         "modify/add operation requires values" );
 121                                 goto cleanup;
 122                         }
 123
 124                         /* fall through */
 125
 126                 case LDAP_MOD_DELETE:
 127                 case LDAP_MOD_REPLACE:
 128                         break;
 129
 130                 case LDAP_MOD_INCREMENT:
 131                         if( op->o_protocol >= LDAP_VERSION3 ) {
 132                                 increment++;
 133                                 if ( mod->sml_values == NULL ) {
 134                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 135                                                 "modify/increment operation (%ld) requires value\n",
 136                                                 (long) mop, 0, 0 );
 137
 138                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 139                                                 "modify/increment operation requires value" );
 140                                         goto cleanup;
 141                                 }
 142
 143                                 if ( !BER_BVISNULL( &mod->sml_values[ 1 ] ) ) {
 144                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 145                                                 "operation (%ld) requires single value\n",
 146                                                 (long) mop, 0, 0 );
 147
 148                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 149                                                 "modify/increment operation requires single value" );
 150                                         goto cleanup;
 151                                 }
 152
 153                                 break;
 154                         }
 155                         /* fall thru */
 156
 157                 default: {
 158                                 Debug( LDAP_DEBUG_ANY,
 159                                         "do_modify: unrecognized modify operation (%ld)\n",
 160                                         (long) mop, 0, 0 );
 161
 162                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 163                                         "unrecognized modify operation" );
 164                                 goto cleanup;
 165                         }
 166                 }
 167
 168                 modtail = &mod->sml_next;
 169         }
 170         *modtail = NULL;
 171
 172         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 173                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 174
 175                 goto cleanup;
 176         }
 177
 178         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 179                 op->o_tmpmemctx );
 180         if( rs->sr_err != LDAP_SUCCESS ) {
 181                 Debug( LDAP_DEBUG_ANY,
 182                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 183                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 184                 goto cleanup;
 185         }
 186
 187         rs->sr_err = slap_mods_check( modlist,
 188                 &rs->sr_text, textbuf, textlen, NULL );
 189
 190         if ( rs->sr_err != LDAP_SUCCESS ) {
 191                 send_ldap_result( op, rs );
 192                 goto cleanup;
 193         }
 194
 195         /* FIXME: needs review */
 196         op->orm_modlist = modlist;
 197         op->orm_increment = increment;
 198
 199         op->o_bd = frontendDB;
 200         rs->sr_err = frontendDB->be_modify( op, rs );
 201
 202 cleanup:
 203         slap_graduate_commit_csn( op );
 204
 205         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 206         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 207         if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist, 1 );
 208
 209         return rs->sr_err;
 210 }
 211
 212 int
 213 fe_op_modify( Operation *op, SlapReply *rs )
 214 {
 215 #ifdef LDAP_DEBUG
 216         Modifications   *tmp;
 217 #endif
 218         int             manageDSAit;
 219         Modifications   *modlist = op->orm_modlist;
 220         Modifications   **modtail = &modlist;
 221         int             increment = op->orm_increment;
 222         BackendDB *op_be;
 223         char            textbuf[ SLAP_TEXT_BUFLEN ];
 224         size_t          textlen = sizeof( textbuf );
 225
 226         if( op->o_req_ndn.bv_len == 0 ) {
 227                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 228
 229                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 230                         "modify upon the root DSE not supported" );
 231                 goto cleanup;
 232
 233         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 234                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 235
 236                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 237                         "modification of subschema subentry not supported" );
 238                 goto cleanup;
 239         }
 240
 241 #ifdef LDAP_DEBUG
 242         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 243
 244         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 245                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 246                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 247                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 248                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 249                                         "replace")), tmp->sml_type.bv_val, 0 );
 250
 251                 if ( tmp->sml_values == NULL ) {
 252                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 253                            "\t\tno values", NULL, NULL );
 254                 } else if ( BER_BVISNULL( &tmp->sml_values[ 0 ] ) ) {
 255                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 256                            "\t\tzero values", NULL, NULL );
 257                 } else if ( BER_BVISNULL( &tmp->sml_values[ 1 ] ) ) {
 258                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 259                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 260                 } else {
 261                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 262                            "\t\tmultiple values", NULL, NULL );
 263                 }
 264         }
 265
 266         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 267                 char abuf[BUFSIZ/2], *ptr = abuf;
 268                 int len = 0;
 269
 270                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 271                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 272
 273                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 274                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 275                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 276                                     op->o_log_prefix, abuf, 0, 0, 0 );
 277
 278                                 len = 0;
 279                                 ptr = abuf;
 280
 281                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 282                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 283                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 284                                         continue;
 285                                 }
 286                         }
 287                         if (len) {
 288                                 *ptr++ = ' ';
 289                                 len++;
 290                         }
 291                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 292                         len += tmp->sml_type.bv_len;
 293                 }
 294                 if (len) {
 295                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 296                                 op->o_log_prefix, abuf, 0, 0, 0 );
 297                 }
 298         }
 299 #endif  /* LDAP_DEBUG */
 300
 301         manageDSAit = get_manageDSAit( op );
 302
 303         /*
 304          * We could be serving multiple database backends.  Select the
 305          * appropriate one, or send a referral to our "referral server"
 306          * if we don't hold it.
 307          */
 308         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 309         if ( op->o_bd == NULL ) {
 310                 rs->sr_ref = referral_rewrite( default_referral,
 311                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 312                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 313
 314                 if (rs->sr_ref != NULL ) {
 315                         rs->sr_err = LDAP_REFERRAL;
 316                         op->o_bd = frontendDB;
 317                         send_ldap_result( op, rs );
 318                         op->o_bd = NULL;
 319
 320                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 321                 } else {
 322                         op->o_bd = frontendDB;
 323                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 324                                 "no global superior knowledge" );
 325                         op->o_bd = NULL;
 326                 }
 327                 goto cleanup;
 328         }
 329
 330         /* If we've got a glued backend, check the real backend */
 331         op_be = op->o_bd;
 332         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 333                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 334         }
 335
 336         /* check restrictions */
 337         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 338                 send_ldap_result( op, rs );
 339                 goto cleanup;
 340         }
 341
 342         /* check for referrals */
 343         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 344                 goto cleanup;
 345         }
 346
 347         rs->sr_err = slap_mods_obsolete_check( op, modlist,
 348                 &rs->sr_text, textbuf, textlen );
 349         if ( rs->sr_err != LDAP_SUCCESS ) {
 350                 send_ldap_result( op, rs );
 351                 goto cleanup;
 352         }
 353
 354         /* check for modify/increment support */
 355         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 356                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 357                         "modify/increment not supported in context" );
 358         }
 359
 360         /*
 361          * do the modify if 1 && (2 || 3)
 362          * 1) there is a modify function implemented in this backend;
 363          * 2) this backend is master for what it holds;
 364          * 3) it's a replica and the dn supplied is the update_ndn.
 365          */
 366         if ( op->o_bd->be_modify ) {
 367                 /* do the update here */
 368                 int repl_user = be_isupdate( op );
 369
 370                 /* Multimaster slapd does not have to check for replicator dn
 371                  * because it accepts each modify request
 372                  */
 373 #ifndef SLAPD_MULTIMASTER
 374                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 375 #endif
 376                 {
 377                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 378                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 379
 380                         op->o_bd = op_be;
 381
 382                         if ( !update ) {
 383                                 rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
 384                                         &rs->sr_text, textbuf, textlen );
 385                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 386                                         send_ldap_result( op, rs );
 387                                         goto cleanup;
 388                                 }
 389                         }
 390
 391                         if ( !repl_user ) {
 392                                 for( modtail = &modlist;
 393                                         *modtail != NULL;
 394                                         modtail = &(*modtail)->sml_next )
 395                                 {
 396                                         /* empty */
 397                                 }
 398
 399                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 400                                         &rs->sr_text, textbuf, textlen, 1 );
 401                                 if( rs->sr_err != LDAP_SUCCESS ) {
 402                                         send_ldap_result( op, rs );
 403                                         goto cleanup;
 404                                 }
 405                         }
 406
 407                         op->orm_modlist = modlist;
 408 #ifdef SLAPD_MULTIMASTER
 409                         if ( !repl_user )
 410 #endif
 411                         {
 412                                 /* but multimaster slapd logs only the ones
 413                                  * not from a replicator user */
 414                                 cb.sc_next = op->o_callback;
 415                                 op->o_callback = &cb;
 416                         }
 417                         op->o_bd->be_modify( op, rs );
 418
 419 #ifndef SLAPD_MULTIMASTER
 420                 /* send a referral */
 421                 } else {
 422                         BerVarray defref = op->o_bd->be_update_refs
 423                                 ? op->o_bd->be_update_refs : default_referral;
 424                         if ( defref != NULL ) {
 425                                 rs->sr_ref = referral_rewrite( defref,
 426                                         NULL, &op->o_req_dn,
 427                                         LDAP_SCOPE_DEFAULT );
 428                                 if ( rs->sr_ref == NULL ) {
 429                                         /* FIXME: must duplicate, because
 430                                          * overlays may muck with it */
 431                                         rs->sr_ref = defref;
 432                                 }
 433                                 rs->sr_err = LDAP_REFERRAL;
 434                                 send_ldap_result( op, rs );
 435                                 if ( rs->sr_ref != defref ) {
 436                                         ber_bvarray_free( rs->sr_ref );
 437                                 }
 438
 439                         } else {
 440                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 441                                         "shadow context; no update referral" );
 442                         }
 443 #endif
 444                 }
 445         } else {
 446                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 447                     "operation not supported within namingContext" );
 448         }
 449
 450 cleanup:;
 451         return rs->sr_err;
 452 }
 453
 454 /*
 455  * Obsolete constraint checking.
 456  */
 457 int
 458 slap_mods_obsolete_check(
 459         Operation *op,
 460         Modifications *ml,
 461         const char **text,
 462         char *textbuf,
 463         size_t textlen )
 464 {
 465         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 466
 467         for ( ; ml != NULL; ml = ml->sml_next ) {
 468                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 469                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 470                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 471                                         ml->sml_values != NULL ))
 472                 {
 473                         /*
 474                          * attribute is obsolete,
 475                          * only allow replace/delete with no values
 476                          */
 477                         snprintf( textbuf, textlen,
 478                                 "%s: attribute is obsolete",
 479                                 ml->sml_type.bv_val );
 480                         *text = textbuf;
 481                         return LDAP_CONSTRAINT_VIOLATION;
 482                 }
 483         }
 484
 485         return LDAP_SUCCESS;
 486 }
 487
 488 /*
 489  * No-user-modification constraint checking.
 490  */
 491 int
 492 slap_mods_no_user_mod_check(
 493         Operation *op,
 494         Modifications *ml,
 495         const char **text,
 496         char *textbuf,
 497         size_t textlen )
 498 {
 499         for ( ; ml != NULL; ml = ml->sml_next ) {
 500                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 501
 502                 if ( get_manageDIT( op ) ) {
 503                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 504                                 ml->sml_flags |= SLAP_MOD_MANAGING;
 505                                 continue;
 506                         }
 507
 508                         /* attribute not manageable */
 509                         snprintf( textbuf, textlen,
 510                                 "%s: no-user-modification attribute not manageable",
 511                                 ml->sml_type.bv_val );
 512
 513                 } else {
 514                         /* user modification disallowed */
 515                         snprintf( textbuf, textlen,
 516                                 "%s: no user modification allowed",
 517                                 ml->sml_type.bv_val );
 518                 }
 519
 520                 *text = textbuf;
 521                 return LDAP_CONSTRAINT_VIOLATION;
 522         }
 523
 524         return LDAP_SUCCESS;
 525 }
 526
 527 int
 528 slap_mods_no_repl_user_mod_check(
 529         Operation *op,
 530         Modifications *ml,
 531         const char **text,
 532         char *textbuf,
 533         size_t textlen )
 534 {
 535         Modifications *mods;
 536         Modifications *modp;
 537
 538         for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
 539                 assert( mods->sml_op == LDAP_MOD_ADD );
 540
 541                 /* check doesn't already appear */
 542                 for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
 543                         if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
 544                                 snprintf( textbuf, textlen,
 545                                         "attribute '%s' provided more than once",
 546                                         mods->sml_desc->ad_cname.bv_val );
 547                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 548                         }
 549                 }
 550         }
 551
 552         return LDAP_SUCCESS;
 553 }
 554
 555 /*
 556  * Do basic attribute type checking and syntax validation.
 557  */
 558 int slap_mods_check(
 559         Modifications *ml,
 560         const char **text,
 561         char *textbuf,
 562         size_t textlen,
 563         void *ctx )
 564 {
 565         int rc;
 566
 567         for( ; ml != NULL; ml = ml->sml_next ) {
 568                 AttributeDescription *ad = NULL;
 569
 570                 /* convert to attribute description */
 571                 if ( ml->sml_desc == NULL ) {
 572                         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 573                         if( rc != LDAP_SUCCESS ) {
 574                                 snprintf( textbuf, textlen, "%s: %s",
 575                                         ml->sml_type.bv_val, *text );
 576                                 *text = textbuf;
 577                                 return rc;
 578                         }
 579                 }
 580
 581                 ad = ml->sml_desc;
 582
 583                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 584                         && !slap_ad_is_binary( ad ))
 585                 {
 586                         /* attribute requires binary transfer */
 587                         snprintf( textbuf, textlen,
 588                                 "%s: requires ;binary transfer",
 589                                 ml->sml_type.bv_val );
 590                         *text = textbuf;
 591                         return LDAP_UNDEFINED_TYPE;
 592                 }
 593
 594                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 595                         && slap_ad_is_binary( ad ))
 596                 {
 597                         /* attribute does not require binary transfer */
 598                         snprintf( textbuf, textlen,
 599                                 "%s: disallows ;binary transfer",
 600                                 ml->sml_type.bv_val );
 601                         *text = textbuf;
 602                         return LDAP_UNDEFINED_TYPE;
 603                 }
 604
 605                 if( slap_ad_is_tag_range( ad )) {
 606                         /* attribute requires binary transfer */
 607                         snprintf( textbuf, textlen,
 608                                 "%s: inappropriate use of tag range option",
 609                                 ml->sml_type.bv_val );
 610                         *text = textbuf;
 611                         return LDAP_UNDEFINED_TYPE;
 612                 }
 613
 614 #if 0
 615                 if ( is_at_obsolete( ad->ad_type ) &&
 616                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 617                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 618                                         ml->sml_values != NULL ))
 619                 {
 620                         /*
 621                          * attribute is obsolete,
 622                          * only allow replace/delete with no values
 623                          */
 624                         snprintf( textbuf, textlen,
 625                                 "%s: attribute is obsolete",
 626                                 ml->sml_type.bv_val );
 627                         *text = textbuf;
 628                         return LDAP_CONSTRAINT_VIOLATION;
 629                 }
 630 #endif
 631
 632                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 633 #ifdef SLAPD_REAL_SYNTAX
 634                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 635 #endif
 636                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 637                 {
 638                         /*
 639                          * attribute values must be INTEGER or REAL
 640                          */
 641                         snprintf( textbuf, textlen,
 642                                 "%s: attribute syntax inappropriate for increment",
 643                                 ml->sml_type.bv_val );
 644                         *text = textbuf;
 645                         return LDAP_CONSTRAINT_VIOLATION;
 646                 }
 647
 648                 /*
 649                  * check values
 650                  */
 651                 if( ml->sml_values != NULL ) {
 652                         ber_len_t nvals;
 653                         slap_syntax_validate_func *validate =
 654                                 ad->ad_type->sat_syntax->ssyn_validate;
 655                         slap_syntax_transform_func *pretty =
 656                                 ad->ad_type->sat_syntax->ssyn_pretty;
 657
 658                         if( !pretty && !validate ) {
 659                                 *text = "no validator for syntax";
 660                                 snprintf( textbuf, textlen,
 661                                         "%s: no validator for syntax %s",
 662                                         ml->sml_type.bv_val,
 663                                         ad->ad_type->sat_syntax->ssyn_oid );
 664                                 *text = textbuf;
 665                                 return LDAP_INVALID_SYNTAX;
 666                         }
 667
 668                         /*
 669                          * check that each value is valid per syntax
 670                          *      and pretty if appropriate
 671                          */
 672                         for ( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 673                                 struct berval pval;
 674
 675                                 if ( pretty ) {
 676 #ifdef SLAP_ORDERED_PRETTYNORM
 677                                         rc = ordered_value_pretty( ad,
 678                                                 &ml->sml_values[nvals], &pval, ctx );
 679 #else /* ! SLAP_ORDERED_PRETTYNORM */
 680                                         rc = pretty( ad->ad_type->sat_syntax,
 681                                                 &ml->sml_values[nvals], &pval, ctx );
 682 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 683                                 } else {
 684 #ifdef SLAP_ORDERED_PRETTYNORM
 685                                         rc = ordered_value_validate( ad,
 686                                                 &ml->sml_values[nvals] );
 687 #else /* ! SLAP_ORDERED_PRETTYNORM */
 688                                         rc = validate( ad->ad_type->sat_syntax,
 689                                                 &ml->sml_values[nvals] );
 690 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 691                                 }
 692
 693                                 if( rc != 0 ) {
 694                                         snprintf( textbuf, textlen,
 695                                                 "%s: value #%ld invalid per syntax",
 696                                                 ml->sml_type.bv_val, (long) nvals );
 697                                         *text = textbuf;
 698                                         return LDAP_INVALID_SYNTAX;
 699                                 }
 700
 701                                 if( pretty ) {
 702                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 703                                         ml->sml_values[nvals] = pval;
 704                                 }
 705                         }
 706
 707                         /*
 708                          * a rough single value check... an additional check is needed
 709                          * to catch add of single value to existing single valued attribute
 710                          */
 711                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 712                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 713                         {
 714                                 snprintf( textbuf, textlen,
 715                                         "%s: multiple values provided",
 716                                         ml->sml_type.bv_val );
 717                                 *text = textbuf;
 718                                 return LDAP_CONSTRAINT_VIOLATION;
 719                         }
 720
 721                         /* if the type has a normalizer, generate the
 722                          * normalized values. otherwise leave them NULL.
 723                          *
 724                          * this is different from the rule for attributes
 725                          * in an entry - in an attribute list, the normalized
 726                          * value is set equal to the non-normalized value
 727                          * when there is no normalizer.
 728                          */
 729                         if( nvals && ad->ad_type->sat_equality &&
 730                                 ad->ad_type->sat_equality->smr_normalize )
 731                         {
 732                                 ml->sml_nvalues = ber_memalloc_x(
 733                                         (nvals+1)*sizeof(struct berval), ctx );
 734
 735                                 for ( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 736 #ifdef SLAP_ORDERED_PRETTYNORM
 737                                         rc = ordered_value_normalize(
 738                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 739                                                 ad,
 740                                                 ad->ad_type->sat_equality,
 741                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 742 #else /* ! SLAP_ORDERED_PRETTYNORM */
 743                                         rc = ad->ad_type->sat_equality->smr_normalize(
 744                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 745                                                 ad->ad_type->sat_syntax,
 746                                                 ad->ad_type->sat_equality,
 747                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 748 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 749                                         if ( rc ) {
 750                                                 Debug( LDAP_DEBUG_ANY,
 751                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 752                                                         rc, 0, 0 );
 753                                                 snprintf( textbuf, textlen,
 754                                                         "%s: value #%ld normalization failed",
 755                                                         ml->sml_type.bv_val, (long) nvals );
 756                                                 *text = textbuf;
 757                                                 return rc;
 758                                         }
 759                                 }
 760
 761                                 BER_BVZERO( &ml->sml_nvalues[nvals] );
 762                         }
 763
 764                         /* check for duplicates, but ignore Deletes.
 765                          */
 766                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 767                                 int             i, j, rc, match;
 768                                 MatchingRule *mr = ad->ad_type->sat_equality;
 769
 770                                 for ( i = 1; i < nvals ; i++ ) {
 771                                         /* test asserted values against themselves */
 772                                         for( j = 0; j < i; j++ ) {
 773                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 774                                                         SLAP_MR_EQUALITY
 775                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 776                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 777                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 778                                                         ml->sml_nvalues
 779                                                                 ? &ml->sml_nvalues[i]
 780                                                                 : &ml->sml_values[i],
 781                                                         ml->sml_nvalues
 782                                                                 ? &ml->sml_nvalues[j]
 783                                                                 : &ml->sml_values[j],
 784                                                         text );
 785                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 786                                                         /* value exists already */
 787                                                         snprintf( textbuf, textlen,
 788                                                                 "%s: value #%d provided more than once",
 789                                                                 ml->sml_desc->ad_cname.bv_val, j );
 790                                                         *text = textbuf;
 791                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 792
 793                                                 } else if ( rc != LDAP_SUCCESS ) {
 794                                                         return rc;
 795                                                 }
 796                                         }
 797                                 }
 798                         }
 799
 800                 }
 801         }
 802
 803         return LDAP_SUCCESS;
 804 }
 805
 806 /* Enter with bv->bv_len = sizeof buffer, returns with
 807  * actual length of string
 808  */
 809 void slap_timestamp( time_t *tm, struct berval *bv )
 810 {
 811         struct tm *ltm;
 812 #ifdef HAVE_GMTIME_R
 813         struct tm ltm_buf;
 814
 815         ltm = gmtime_r( tm, &ltm_buf );
 816 #else
 817         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 818         ltm = gmtime( tm );
 819 #endif
 820
 821         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 822
 823 #ifndef HAVE_GMTIME_R
 824         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 825 #endif
 826 }
 827
 828 int slap_mods_opattrs(
 829         Operation *op,
 830         Modifications *mods,
 831         Modifications **modtail,
 832         const char **text,
 833         char *textbuf, size_t textlen,
 834         int manage_ctxcsn )
 835 {
 836         struct berval name, timestamp, csn;
 837         struct berval nname;
 838         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 839         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 840         Modifications *mod;
 841
 842         int mop = op->o_tag == LDAP_REQ_ADD
 843                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 844
 845         assert( modtail != NULL );
 846         assert( *modtail == NULL );
 847
 848         if ( SLAP_LASTMOD( op->o_bd ) ) {
 849                 time_t now = slap_get_time();
 850
 851                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 852
 853                 timestamp.bv_val = timebuf;
 854                 timestamp.bv_len = sizeof(timebuf);
 855
 856                 slap_timestamp( &now, &timestamp );
 857
 858                 if ( BER_BVISEMPTY( &op->o_dn ) ) {
 859                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 860                         nname = name;
 861                 } else {
 862                         name = op->o_dn;
 863                         nname = op->o_ndn;
 864                 }
 865         }
 866
 867         if ( op->o_tag == LDAP_REQ_ADD ) {
 868                 struct berval tmpval;
 869
 870                 mod = *modtail;
 871                 if ( get_manageDIT( op ) ) {
 872                         for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 873                                 if ( mod->sml_desc == slap_schema.si_ad_structuralObjectClass ) {
 874                                         break;
 875                                 }
 876                         }
 877
 878                 }
 879
 880                 if ( mod == *modtail ) {
 881                         int rc = mods_structural_class( mods, &tmpval,
 882                                 text, textbuf, textlen );
 883                         if( rc != LDAP_SUCCESS ) return rc;
 884
 885                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 886                         mod->sml_op = mop;
 887                         mod->sml_flags = SLAP_MOD_INTERNAL;
 888                         mod->sml_next = NULL;
 889                         BER_BVZERO( &mod->sml_type );
 890                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 891                         mod->sml_values =
 892                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 893                         ber_dupbv( &mod->sml_values[0], &tmpval );
 894                         BER_BVZERO( &mod->sml_values[1] );
 895                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 896                         mod->sml_nvalues =
 897                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 898                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 899                         BER_BVZERO( &mod->sml_nvalues[1] );
 900                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 901                         *modtail = mod;
 902                         modtail = &mod->sml_next;
 903                 }
 904
 905                 if ( SLAP_LASTMOD( op->o_bd ) ) {
 906                         mod = *modtail;
 907                         if ( get_manageDIT( op ) ) {
 908                                 for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 909                                         if ( mod->sml_desc == slap_schema.si_ad_entryUUID ) {
 910                                                 break;
 911                                         }
 912                                 }
 913                         }
 914
 915                         if ( mod == *modtail ) {
 916                                 char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 917
 918                                 tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 919                                 tmpval.bv_val = uuidbuf;
 920
 921                                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 922                                 mod->sml_op = mop;
 923                                 mod->sml_flags = SLAP_MOD_INTERNAL;
 924                                 mod->sml_next = NULL;
 925                                 BER_BVZERO( &mod->sml_type );
 926                                 mod->sml_desc = slap_schema.si_ad_entryUUID;
 927                                 mod->sml_values =
 928                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 929                                 ber_dupbv( &mod->sml_values[0], &tmpval );
 930                                 BER_BVZERO( &mod->sml_values[1] );
 931                                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 932                                 mod->sml_nvalues =
 933                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 934                                 (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 935                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 936                                                 mod->sml_desc->ad_type->sat_syntax,
 937                                                 mod->sml_desc->ad_type->sat_equality,
 938                                                 mod->sml_values, mod->sml_nvalues, NULL );
 939                                 BER_BVZERO( &mod->sml_nvalues[1] );
 940                                 *modtail = mod;
 941                                 modtail = &mod->sml_next;
 942                         }
 943
 944                         mod = *modtail;
 945                         if ( get_manageDIT( op ) ) {
 946                                 for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 947                                         if ( mod->sml_desc == slap_schema.si_ad_creatorsName ) {
 948                                                 break;
 949                                         }
 950                                 }
 951                         }
 952
 953                         if ( mod == *modtail ) {
 954                                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 955                                 mod->sml_op = mop;
 956                                 mod->sml_flags = SLAP_MOD_INTERNAL;
 957                                 mod->sml_next = NULL;
 958                                 BER_BVZERO( &mod->sml_type );
 959                                 mod->sml_desc = slap_schema.si_ad_creatorsName;
 960                                 mod->sml_values =
 961                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 962                                 ber_dupbv( &mod->sml_values[0], &name );
 963                                 BER_BVZERO( &mod->sml_values[1] );
 964                                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 965                                 mod->sml_nvalues =
 966                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 967                                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 968                                 BER_BVZERO( &mod->sml_nvalues[1] );
 969                                 assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 970                                 *modtail = mod;
 971                                 modtail = &mod->sml_next;
 972                         }
 973
 974                         mod = *modtail;
 975                         if ( get_manageDIT( op ) ) {
 976                                 for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 977                                         if ( mod->sml_desc == slap_schema.si_ad_createTimestamp ) {
 978                                                 break;
 979                                         }
 980                                 }
 981                         }
 982
 983                         if ( mod == *modtail ) {
 984                                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 985                                 mod->sml_op = mop;
 986                                 mod->sml_flags = SLAP_MOD_INTERNAL;
 987                                 mod->sml_next = NULL;
 988                                 BER_BVZERO( &mod->sml_type );
 989                                 mod->sml_desc = slap_schema.si_ad_createTimestamp;
 990                                 mod->sml_values =
 991                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 992                                 ber_dupbv( &mod->sml_values[0], &timestamp );
 993                                 BER_BVZERO( &mod->sml_values[1] );
 994                                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 995                                 mod->sml_nvalues = NULL;
 996                                 *modtail = mod;
 997                                 modtail = &mod->sml_next;
 998                         }
 999                 }
1000         }
1001
1002         if ( SLAP_LASTMOD( op->o_bd ) ) {
1003                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1004                 mod->sml_op = mop;
1005                 mod->sml_flags = SLAP_MOD_INTERNAL;
1006                 mod->sml_next = NULL;
1007                 BER_BVZERO( &mod->sml_type );
1008                 mod->sml_desc = slap_schema.si_ad_entryCSN;
1009                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1010                 ber_dupbv( &mod->sml_values[0], &csn );
1011                 BER_BVZERO( &mod->sml_values[1] );
1012                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
1013                 mod->sml_nvalues = NULL;
1014                 *modtail = mod;
1015                 modtail = &mod->sml_next;
1016
1017                 mod = *modtail;
1018                 if ( get_manageDIT( op ) ) {
1019                         for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
1020                                 if ( mod->sml_desc == slap_schema.si_ad_modifiersName ) {
1021                                         break;
1022                                 }
1023                         }
1024                 }
1025
1026                 if ( mod == *modtail ) {
1027                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1028                         mod->sml_op = mop;
1029                         mod->sml_flags = SLAP_MOD_INTERNAL;
1030                         mod->sml_next = NULL;
1031                         BER_BVZERO( &mod->sml_type );
1032                         mod->sml_desc = slap_schema.si_ad_modifiersName;
1033                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1034                         ber_dupbv( &mod->sml_values[0], &name );
1035                         BER_BVZERO( &mod->sml_values[1] );
1036                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
1037                         mod->sml_nvalues =
1038                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1039                         ber_dupbv( &mod->sml_nvalues[0], &nname );
1040                         BER_BVZERO( &mod->sml_nvalues[1] );
1041                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
1042                         *modtail = mod;
1043                         modtail = &mod->sml_next;
1044                 }
1045
1046                 mod = *modtail;
1047                 if ( get_manageDIT( op ) ) {
1048                         for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
1049                                 if ( mod->sml_desc == slap_schema.si_ad_modifyTimestamp ) {
1050                                         break;
1051                                 }
1052                         }
1053                 }
1054
1055                 if ( mod == *modtail ) {
1056                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1057                         mod->sml_op = mop;
1058                         mod->sml_flags = SLAP_MOD_INTERNAL;
1059                         mod->sml_next = NULL;
1060                         BER_BVZERO( &mod->sml_type );
1061                         mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
1062                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1063                         ber_dupbv( &mod->sml_values[0], &timestamp );
1064                         BER_BVZERO( &mod->sml_values[1] );
1065                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
1066                         mod->sml_nvalues = NULL;
1067                         *modtail = mod;
1068                         modtail = &mod->sml_next;
1069                 }
1070         }
1071
1072         *modtail = NULL;
1073         return LDAP_SUCCESS;
1074 }
1075