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 #ifdef LDAP_SLAPI
  36 #include "slapi/slapi.h"
  37 #endif
  38 #include "lutil.h"
  39
  40
  41 int
  42 do_modify(
  43     Operation   *op,
  44     SlapReply   *rs )
  45 {
  46         struct berval dn = BER_BVNULL;
  47         char            *last;
  48         ber_tag_t       tag;
  49         ber_len_t       len;
  50         Modifications   *modlist = NULL;
  51         Modifications   **modtail = &modlist;
  52         int             increment = 0;
  53         char            textbuf[ SLAP_TEXT_BUFLEN ];
  54         size_t          textlen = sizeof( textbuf );
  55
  56         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  57
  58         /*
  59          * Parse the modify request.  It looks like this:
  60          *
  61          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  62          *              name    DistinguishedName,
  63          *              mods    SEQUENCE OF SEQUENCE {
  64          *                      operation       ENUMERATED {
  65          *                              add     (0),
  66          *                              delete  (1),
  67          *                              replace (2)
  68          *                      },
  69          *                      modification    SEQUENCE {
  70          *                              type    AttributeType,
  71          *                              values  SET OF AttributeValue
  72          *                      }
  73          *              }
  74          *      }
  75          */
  76
  77         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  78                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  79
  80                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  81                 return SLAPD_DISCONNECT;
  82         }
  83
  84         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  85
  86         /* collect modifications & save for later */
  87         for ( tag = ber_first_element( op->o_ber, &len, &last );
  88             tag != LBER_DEFAULT;
  89             tag = ber_next_element( op->o_ber, &len, last ) )
  90         {
  91                 ber_int_t mop;
  92                 Modifications tmp, *mod;
  93
  94                 tmp.sml_nvalues = NULL;
  95
  96                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
  97                     &tmp.sml_type, &tmp.sml_values ) == LBER_ERROR )
  98                 {
  99                         send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR,
 100                                 "decoding modlist error" );
 101                         rs->sr_err = SLAPD_DISCONNECT;
 102                         goto cleanup;
 103                 }
 104
 105                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 106                 mod->sml_op = mop;
 107                 mod->sml_type = tmp.sml_type;
 108                 mod->sml_values = tmp.sml_values;
 109                 mod->sml_nvalues = NULL;
 110                 mod->sml_desc = NULL;
 111                 mod->sml_next = NULL;
 112                 *modtail = mod;
 113
 114                 switch( mop ) {
 115                 case LDAP_MOD_ADD:
 116                         if ( mod->sml_values == NULL ) {
 117                                 Debug( LDAP_DEBUG_ANY,
 118                                         "do_modify: modify/add operation (%ld) requires values\n",
 119                                         (long) mop, 0, 0 );
 120
 121                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 122                                         "modify/add operation requires values" );
 123                                 goto cleanup;
 124                         }
 125
 126                         /* fall through */
 127
 128                 case LDAP_MOD_DELETE:
 129                 case LDAP_MOD_REPLACE:
 130                         break;
 131
 132                 case LDAP_MOD_INCREMENT:
 133                         if( op->o_protocol >= LDAP_VERSION3 ) {
 134                                 increment++;
 135                                 if ( mod->sml_values == NULL ) {
 136                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 137                                                 "modify/increment operation (%ld) requires value\n",
 138                                                 (long) mop, 0, 0 );
 139
 140                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 141                                                 "modify/increment operation requires value" );
 142                                         goto cleanup;
 143                                 }
 144
 145                                 if( mod->sml_values[1].bv_val ) {
 146                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 147                                                 "operation (%ld) requires single value\n",
 148                                                 (long) mop, 0, 0 );
 149
 150                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 151                                                 "modify/increment operation requires single value" );
 152                                         goto cleanup;
 153                                 }
 154
 155                                 break;
 156                         }
 157                         /* fall thru */
 158
 159                 default: {
 160                                 Debug( LDAP_DEBUG_ANY,
 161                                         "do_modify: unrecognized modify operation (%ld)\n",
 162                                         (long) mop, 0, 0 );
 163
 164                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 165                                         "unrecognized modify operation" );
 166                                 goto cleanup;
 167                         }
 168                 }
 169
 170                 modtail = &mod->sml_next;
 171         }
 172         *modtail = NULL;
 173
 174         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 175                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 176
 177                 goto cleanup;
 178         }
 179
 180         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 181                 op->o_tmpmemctx );
 182         if( rs->sr_err != LDAP_SUCCESS ) {
 183                 Debug( LDAP_DEBUG_ANY,
 184                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 185                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 186                 goto cleanup;
 187         }
 188
 189         rs->sr_err = slap_mods_check( modlist, &rs->sr_text,
 190                         textbuf, textlen, NULL );
 191
 192         if ( rs->sr_err != LDAP_SUCCESS ) {
 193                 send_ldap_result( op, rs );
 194                 goto cleanup;
 195         }
 196
 197         /* FIXME: needs review */
 198         op->orm_modlist = modlist;
 199         op->orm_increment = increment;
 200
 201         op->o_bd = frontendDB;
 202         rs->sr_err = frontendDB->be_modify( op, rs );
 203
 204 cleanup:
 205         slap_graduate_commit_csn( op );
 206
 207         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 208         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 209         if ( modlist != NULL ) slap_mods_free( modlist );
 210
 211         return rs->sr_err;
 212 }
 213
 214 int
 215 fe_op_modify( Operation *op, SlapReply *rs )
 216 {
 217 #ifdef LDAP_DEBUG
 218         Modifications   *tmp;
 219 #endif
 220         int             manageDSAit;
 221         Modifications   *modlist = op->orm_modlist;
 222         Modifications   **modtail = &modlist;
 223 #ifdef LDAP_SLAPI
 224         LDAPMod         **modv = NULL;
 225 #endif
 226         int             increment = op->orm_increment;
 227         int             rc = 0;
 228
 229         if( op->o_req_ndn.bv_len == 0 ) {
 230                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 231
 232                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 233                         "modify upon the root DSE not supported" );
 234                 goto cleanup;
 235
 236         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 237                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 238
 239                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 240                         "modification of subschema subentry not supported" );
 241                 goto cleanup;
 242         }
 243
 244 #ifdef LDAP_DEBUG
 245         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 246
 247         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 248                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 249                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 250                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 251                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 252                                         "replace")), tmp->sml_type.bv_val, 0 );
 253
 254                 if ( tmp->sml_values == NULL ) {
 255                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 256                            "\t\tno values", NULL, NULL );
 257                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 258                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 259                            "\t\tzero values", NULL, NULL );
 260                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 261                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 262                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 263                 } else {
 264                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 265                            "\t\tmultiple values", NULL, NULL );
 266                 }
 267         }
 268
 269         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 270                 char abuf[BUFSIZ/2], *ptr = abuf;
 271                 int len = 0;
 272
 273                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 274                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 275
 276                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 277                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 278                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 279                                     op->o_log_prefix, abuf, 0, 0, 0 );
 280
 281                                 len = 0;
 282                                 ptr = abuf;
 283
 284                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 285                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 286                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 287                                         continue;
 288                                 }
 289                         }
 290                         if (len) {
 291                                 *ptr++ = ' ';
 292                                 len++;
 293                         }
 294                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 295                         len += tmp->sml_type.bv_len;
 296                 }
 297                 if (len) {
 298                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 299                                 op->o_log_prefix, abuf, 0, 0, 0 );
 300                 }
 301         }
 302 #endif  /* LDAP_DEBUG */
 303
 304         manageDSAit = get_manageDSAit( op );
 305
 306         /*
 307          * We could be serving multiple database backends.  Select the
 308          * appropriate one, or send a referral to our "referral server"
 309          * if we don't hold it.
 310          */
 311         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 312         if ( op->o_bd == NULL ) {
 313                 rs->sr_ref = referral_rewrite( default_referral,
 314                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 315                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 316
 317                 if (rs->sr_ref != NULL ) {
 318                         rs->sr_err = LDAP_REFERRAL;
 319                         op->o_bd = frontendDB;
 320                         send_ldap_result( op, rs );
 321                         op->o_bd = NULL;
 322
 323                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 324                 } else {
 325                         op->o_bd = frontendDB;
 326                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 327                                 "no global superior knowledge" );
 328                         op->o_bd = NULL;
 329                 }
 330                 goto cleanup;
 331         }
 332
 333         /* check restrictions */
 334         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 335                 send_ldap_result( op, rs );
 336                 goto cleanup;
 337         }
 338
 339         /* check for referrals */
 340         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 341                 goto cleanup;
 342         }
 343
 344         /* check for modify/increment support */
 345         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 346                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 347                         "modify/increment not supported in context" );
 348         }
 349
 350 #if defined( LDAP_SLAPI )
 351 #define pb      op->o_pb
 352         if ( pb ) {
 353                 slapi_int_pblock_set_operation( pb, op );
 354                 slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)op->o_req_dn.bv_val );
 355                 slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 356                 modv = slapi_int_modifications2ldapmods( &modlist );
 357                 slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 358
 359                 rs->sr_err = slapi_int_call_plugins( op->o_bd,
 360                         SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 361
 362                 /*
 363                  * It's possible that the preoperation plugin changed the
 364                  * modification array, so we need to convert it back to
 365                  * a Modification list.
 366                  *
 367                  * Calling slapi_int_modifications2ldapmods() destroyed modlist so
 368                  * we don't need to free it.
 369                  */
 370                 slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 371                 modlist = slapi_int_ldapmods2modifications( modv );
 372
 373                 if ( rs->sr_err < 0 ) {
 374                         /*
 375                          * A preoperation plugin failure will abort the
 376                          * entire operation.
 377                          */
 378                         Debug(LDAP_DEBUG_TRACE,
 379                                 "do_modify: modify preoperation plugin failed.\n",
 380                                 0, 0, 0);
 381                         if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
 382                                 (void *)&rs->sr_err ) != 0 ) || rs->sr_err == LDAP_SUCCESS )
 383                         {
 384                                 rs->sr_err = LDAP_OTHER;
 385                         }
 386                         slapi_int_free_ldapmods( modv );
 387                         modv = NULL;
 388                         goto cleanup;
 389                 }
 390         }
 391
 392         /*
 393          * NB: it is valid for the plugin to return no modifications
 394          * (for example, a plugin might store some attributes elsewhere
 395          * and remove them from the modification list; if only those
 396          * attribute types were included in the modification request,
 397          * then slapi_int_ldapmods2modifications() above will return
 398          * NULL).
 399          *
 400          * However, the post-operation plugin should still be
 401          * called.
 402          */
 403 #endif /* defined( LDAP_SLAPI ) */
 404
 405         /*
 406          * do the modify if 1 && (2 || 3)
 407          * 1) there is a modify function implemented in this backend;
 408          * 2) this backend is master for what it holds;
 409          * 3) it's a replica and the dn supplied is the update_ndn.
 410          */
 411         if ( op->o_bd->be_modify ) {
 412                 /* do the update here */
 413                 int repl_user = be_isupdate( op );
 414
 415                 /* Multimaster slapd does not have to check for replicator dn
 416                  * because it accepts each modify request
 417                  */
 418 #ifndef SLAPD_MULTIMASTER
 419                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 420 #endif
 421                 {
 422                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 423                         char            textbuf[ SLAP_TEXT_BUFLEN ];
 424                         size_t          textlen = sizeof( textbuf );
 425                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 426
 427
 428                         if ( !update ) {
 429                                 rs->sr_err = slap_mods_no_update_check( modlist,
 430                                                 &rs->sr_text, textbuf, textlen );
 431                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 432                                         send_ldap_result( op, rs );
 433                                         goto cleanup;
 434                                 }
 435                         }
 436
 437
 438
 439                         if ( !repl_user ) {
 440                                 for( modtail = &modlist;
 441                                         *modtail != NULL;
 442                                         modtail = &(*modtail)->sml_next )
 443                                 {
 444                                         /* empty */
 445                                 }
 446
 447                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 448                                         &rs->sr_text, textbuf, textlen, 1 );
 449                                 if( rs->sr_err != LDAP_SUCCESS ) {
 450                                         send_ldap_result( op, rs );
 451                                         goto cleanup;
 452                                 }
 453                         }
 454
 455                         op->orm_modlist = modlist;
 456 #ifdef SLAPD_MULTIMASTER
 457                         if ( !repl_user )
 458 #endif
 459                         {
 460                                 /* but multimaster slapd logs only the ones
 461                                  * not from a replicator user */
 462                                 cb.sc_next = op->o_callback;
 463                                 op->o_callback = &cb;
 464                         }
 465                         op->o_bd->be_modify( op, rs );
 466
 467 #ifndef SLAPD_MULTIMASTER
 468                 /* send a referral */
 469                 } else {
 470                         BerVarray defref = op->o_bd->be_update_refs
 471                                 ? op->o_bd->be_update_refs : default_referral;
 472                         if ( defref != NULL ) {
 473                                 rs->sr_ref = referral_rewrite( defref,
 474                                         NULL, &op->o_req_dn,
 475                                         LDAP_SCOPE_DEFAULT );
 476                                 if ( rs->sr_ref == NULL ) {
 477                                         /* FIXME: must duplicate, because
 478                                          * overlays may muck with it */
 479                                         rs->sr_ref = defref;
 480                                 }
 481                                 rs->sr_err = LDAP_REFERRAL;
 482                                 send_ldap_result( op, rs );
 483                                 if ( rs->sr_ref != defref ) {
 484                                         ber_bvarray_free( rs->sr_ref );
 485                                 }
 486
 487                         } else {
 488                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 489                                         "shadow context; no update referral" );
 490                         }
 491 #endif
 492                 }
 493         } else {
 494                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 495                     "operation not supported within namingContext" );
 496         }
 497
 498 #if defined( LDAP_SLAPI )
 499         if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
 500                 SLAPI_PLUGIN_POST_MODIFY_FN, pb ) < 0 )
 501         {
 502                 Debug(LDAP_DEBUG_TRACE,
 503                         "do_modify: modify postoperation plugins failed.\n", 0, 0, 0);
 504         }
 505 #endif /* defined( LDAP_SLAPI ) */
 506
 507 cleanup:;
 508 #if defined( LDAP_SLAPI )
 509         if ( modv != NULL ) slapi_int_free_ldapmods( modv );
 510 #endif
 511
 512         return rs->sr_err;
 513 }
 514
 515 /*
 516  * Do non-update constraint checking.
 517  */
 518 int
 519 slap_mods_no_update_check(
 520         Modifications *ml,
 521         const char **text,
 522         char *textbuf,
 523         size_t textlen )
 524 {
 525         for ( ; ml != NULL; ml = ml->sml_next ) {
 526                 if ( is_at_no_user_mod( ml->sml_desc->ad_type ) ) {
 527                         /* user modification disallowed */
 528                         snprintf( textbuf, textlen,
 529                                 "%s: no user modification allowed",
 530                                 ml->sml_type.bv_val );
 531                         *text = textbuf;
 532                         return LDAP_CONSTRAINT_VIOLATION;
 533                 }
 534         }
 535
 536         return LDAP_SUCCESS;
 537 }
 538
 539 /*
 540  * Do basic attribute type checking and syntax validation.
 541  */
 542 int slap_mods_check(
 543         Modifications *ml,
 544         const char **text,
 545         char *textbuf,
 546         size_t textlen,
 547         void *ctx )
 548 {
 549         int rc;
 550
 551         for( ; ml != NULL; ml = ml->sml_next ) {
 552                 AttributeDescription *ad = NULL;
 553
 554                 /* convert to attribute description */
 555                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 556
 557                 if( rc != LDAP_SUCCESS ) {
 558                         snprintf( textbuf, textlen, "%s: %s",
 559                                 ml->sml_type.bv_val, *text );
 560                         *text = textbuf;
 561                         return rc;
 562                 }
 563
 564                 ad = ml->sml_desc;
 565
 566                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 567                         && !slap_ad_is_binary( ad ))
 568                 {
 569                         /* attribute requires binary transfer */
 570                         snprintf( textbuf, textlen,
 571                                 "%s: requires ;binary transfer",
 572                                 ml->sml_type.bv_val );
 573                         *text = textbuf;
 574                         return LDAP_UNDEFINED_TYPE;
 575                 }
 576
 577                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 578                         && slap_ad_is_binary( ad ))
 579                 {
 580                         /* attribute does not require binary transfer */
 581                         snprintf( textbuf, textlen,
 582                                 "%s: disallows ;binary transfer",
 583                                 ml->sml_type.bv_val );
 584                         *text = textbuf;
 585                         return LDAP_UNDEFINED_TYPE;
 586                 }
 587
 588                 if( slap_ad_is_tag_range( ad )) {
 589                         /* attribute requires binary transfer */
 590                         snprintf( textbuf, textlen,
 591                                 "%s: inappropriate use of tag range option",
 592                                 ml->sml_type.bv_val );
 593                         *text = textbuf;
 594                         return LDAP_UNDEFINED_TYPE;
 595                 }
 596
 597 #if 0
 598                 /* moved to slap_mods_no_update_check() */
 599                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 600                         /* user modification disallowed */
 601                         snprintf( textbuf, textlen,
 602                                 "%s: no user modification allowed",
 603                                 ml->sml_type.bv_val );
 604                         *text = textbuf;
 605                         return LDAP_CONSTRAINT_VIOLATION;
 606                 }
 607 #endif
 608
 609                 if ( is_at_obsolete( ad->ad_type ) &&
 610                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 611                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 612                                         ml->sml_values != NULL ))
 613                 {
 614                         /*
 615                          * attribute is obsolete,
 616                          * only allow replace/delete with no values
 617                          */
 618                         snprintf( textbuf, textlen,
 619                                 "%s: attribute is obsolete",
 620                                 ml->sml_type.bv_val );
 621                         *text = textbuf;
 622                         return LDAP_CONSTRAINT_VIOLATION;
 623                 }
 624
 625                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 626 #ifdef SLAPD_REAL_SYNTAX
 627                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 628 #endif
 629                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 630                 {
 631                         /*
 632                          * attribute values must be INTEGER or REAL
 633                          */
 634                         snprintf( textbuf, textlen,
 635                                 "%s: attribute syntax inappropriate for increment",
 636                                 ml->sml_type.bv_val );
 637                         *text = textbuf;
 638                         return LDAP_CONSTRAINT_VIOLATION;
 639                 }
 640
 641                 /*
 642                  * check values
 643                  */
 644                 if( ml->sml_values != NULL ) {
 645                         ber_len_t nvals;
 646                         slap_syntax_validate_func *validate =
 647                                 ad->ad_type->sat_syntax->ssyn_validate;
 648                         slap_syntax_transform_func *pretty =
 649                                 ad->ad_type->sat_syntax->ssyn_pretty;
 650
 651                         if( !pretty && !validate ) {
 652                                 *text = "no validator for syntax";
 653                                 snprintf( textbuf, textlen,
 654                                         "%s: no validator for syntax %s",
 655                                         ml->sml_type.bv_val,
 656                                         ad->ad_type->sat_syntax->ssyn_oid );
 657                                 *text = textbuf;
 658                                 return LDAP_INVALID_SYNTAX;
 659                         }
 660
 661                         /*
 662                          * check that each value is valid per syntax
 663                          *      and pretty if appropriate
 664                          */
 665                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 666                                 struct berval pval;
 667                                 if( pretty ) {
 668                                         rc = pretty( ad->ad_type->sat_syntax,
 669                                                 &ml->sml_values[nvals], &pval, ctx );
 670                                 } else {
 671                                         rc = validate( ad->ad_type->sat_syntax,
 672                                                 &ml->sml_values[nvals] );
 673                                 }
 674
 675                                 if( rc != 0 ) {
 676                                         snprintf( textbuf, textlen,
 677                                                 "%s: value #%ld invalid per syntax",
 678                                                 ml->sml_type.bv_val, (long) nvals );
 679                                         *text = textbuf;
 680                                         return LDAP_INVALID_SYNTAX;
 681                                 }
 682
 683                                 if( pretty ) {
 684                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 685                                         ml->sml_values[nvals] = pval;
 686                                 }
 687                         }
 688
 689                         /*
 690                          * a rough single value check... an additional check is needed
 691                          * to catch add of single value to existing single valued attribute
 692                          */
 693                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 694                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 695                         {
 696                                 snprintf( textbuf, textlen,
 697                                         "%s: multiple values provided",
 698                                         ml->sml_type.bv_val );
 699                                 *text = textbuf;
 700                                 return LDAP_CONSTRAINT_VIOLATION;
 701                         }
 702
 703                         /* if the type has a normalizer, generate the
 704                          * normalized values. otherwise leave them NULL.
 705                          *
 706                          * this is different from the rule for attributes
 707                          * in an entry - in an attribute list, the normalized
 708                          * value is set equal to the non-normalized value
 709                          * when there is no normalizer.
 710                          */
 711                         if( nvals && ad->ad_type->sat_equality &&
 712                                 ad->ad_type->sat_equality->smr_normalize )
 713                         {
 714                                 ml->sml_nvalues = ber_memalloc_x(
 715                                         (nvals+1)*sizeof(struct berval), ctx );
 716
 717                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 718                                         rc = ad->ad_type->sat_equality->smr_normalize(
 719                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 720                                                 ad->ad_type->sat_syntax,
 721                                                 ad->ad_type->sat_equality,
 722                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 723                                         if( rc ) {
 724                                                 Debug( LDAP_DEBUG_ANY,
 725                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 726                                                         rc, 0, 0 );
 727                                                 snprintf( textbuf, textlen,
 728                                                         "%s: value #%ld normalization failed",
 729                                                         ml->sml_type.bv_val, (long) nvals );
 730                                                 *text = textbuf;
 731                                                 return rc;
 732                                         }
 733                                 }
 734
 735                                 ml->sml_nvalues[nvals].bv_val = NULL;
 736                                 ml->sml_nvalues[nvals].bv_len = 0;
 737                         }
 738
 739                         if( nvals ) {
 740                                 /* check for duplicates */
 741                                 int             i, j;
 742                                 MatchingRule *mr = ad->ad_type->sat_equality;
 743
 744                                 /* check if the values we're adding already exist */
 745                                 if( mr == NULL || !mr->smr_match ) {
 746                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 747                                                 /* test asserted values against themselves */
 748                                                 for( j = 0; j < i; j++ ) {
 749                                                         if ( bvmatch( &ml->sml_values[i],
 750                                                                 &ml->sml_values[j] ) )
 751                                                         {
 752                                                                 /* value exists already */
 753                                                                 snprintf( textbuf, textlen,
 754                                                                         "%s: value #%d provided more than once",
 755                                                                         ml->sml_desc->ad_cname.bv_val, j );
 756                                                                 *text = textbuf;
 757                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 758                                                         }
 759                                                 }
 760                                         }
 761
 762                                 } else {
 763                                         int rc;
 764                                         int match;
 765
 766                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 767                                                 /* test asserted values against themselves */
 768                                                 for( j = 0; j < i; j++ ) {
 769                                                         rc = value_match( &match, ml->sml_desc, mr,
 770                                                                 SLAP_MR_EQUALITY
 771                                                                         | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 772                                                                         | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 773                                                                         | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 774                                                                 ml->sml_nvalues
 775                                                                         ? &ml->sml_nvalues[i]
 776                                                                         : &ml->sml_values[i],
 777                                                                 ml->sml_nvalues
 778                                                                         ? &ml->sml_nvalues[j]
 779                                                                         : &ml->sml_values[j],
 780                                                                 text );
 781                                                         if ( rc == LDAP_SUCCESS && match == 0 ) {
 782                                                                 /* value exists already */
 783                                                                 snprintf( textbuf, textlen,
 784                                                                         "%s: value #%d provided more than once",
 785                                                                         ml->sml_desc->ad_cname.bv_val, j );
 786                                                                 *text = textbuf;
 787                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 788
 789                                                         } else if ( rc != LDAP_SUCCESS ) {
 790                                                                 return rc;
 791                                                         }
 792                                                 }
 793                                         }
 794                                 }
 795                         }
 796
 797                 }
 798         }
 799
 800         return LDAP_SUCCESS;
 801 }
 802
 803 int slap_mods_opattrs(
 804         Operation *op,
 805         Modifications *mods,
 806         Modifications **modtail,
 807         const char **text,
 808         char *textbuf, size_t textlen,
 809         int manage_ctxcsn )
 810 {
 811         struct berval name, timestamp, csn;
 812         struct berval nname;
 813         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 814         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 815         Modifications *mod;
 816
 817         int mop = op->o_tag == LDAP_REQ_ADD
 818                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 819
 820         assert( modtail != NULL );
 821         assert( *modtail == NULL );
 822
 823         if ( SLAP_LASTMOD( op->o_bd )) {
 824                 struct tm *ltm;
 825 #ifdef HAVE_GMTIME_R
 826                 struct tm ltm_buf;
 827 #endif
 828                 time_t now = slap_get_time();
 829
 830 #ifdef HAVE_GMTIME_R
 831                 ltm = gmtime_r( &now, &ltm_buf );
 832 #else
 833                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 834                 ltm = gmtime( &now );
 835 #endif /* HAVE_GMTIME_R */
 836                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 837
 838                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 839
 840 #ifndef HAVE_GMTIME_R
 841                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 842 #endif
 843
 844                 timestamp.bv_val = timebuf;
 845                 timestamp.bv_len = strlen(timebuf);
 846
 847                 if( op->o_dn.bv_len == 0 ) {
 848                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 849                         nname = name;
 850                 } else {
 851                         name = op->o_dn;
 852                         nname = op->o_ndn;
 853                 }
 854         }
 855
 856         if( op->o_tag == LDAP_REQ_ADD ) {
 857                 struct berval tmpval;
 858
 859                 if( global_schemacheck ) {
 860                         int rc = mods_structural_class( mods, &tmpval,
 861                                 text, textbuf, textlen );
 862                         if( rc != LDAP_SUCCESS ) return rc;
 863
 864                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 865                         mod->sml_op = mop;
 866                         mod->sml_type.bv_val = NULL;
 867                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 868                         mod->sml_values =
 869                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 870                         ber_dupbv( &mod->sml_values[0], &tmpval );
 871                         mod->sml_values[1].bv_len = 0;
 872                         mod->sml_values[1].bv_val = NULL;
 873                         assert( mod->sml_values[0].bv_val );
 874                         mod->sml_nvalues =
 875                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 876                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 877                         mod->sml_nvalues[1].bv_len = 0;
 878                         mod->sml_nvalues[1].bv_val = NULL;
 879                         assert( mod->sml_nvalues[0].bv_val );
 880                         *modtail = mod;
 881                         modtail = &mod->sml_next;
 882                 }
 883
 884                 if ( SLAP_LASTMOD( op->o_bd )) {
 885                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 886
 887                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 888                         tmpval.bv_val = uuidbuf;
 889
 890                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 891                         mod->sml_op = mop;
 892                         mod->sml_type.bv_val = NULL;
 893                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 894                         mod->sml_values =
 895                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 896                         ber_dupbv( &mod->sml_values[0], &tmpval );
 897                         mod->sml_values[1].bv_len = 0;
 898                         mod->sml_values[1].bv_val = NULL;
 899                         assert( mod->sml_values[0].bv_val );
 900                         mod->sml_nvalues =
 901                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 902                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 903                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 904                                         mod->sml_desc->ad_type->sat_syntax,
 905                                         mod->sml_desc->ad_type->sat_equality,
 906                                         mod->sml_values, mod->sml_nvalues, NULL );
 907                         mod->sml_nvalues[1].bv_len = 0;
 908                         mod->sml_nvalues[1].bv_val = NULL;
 909                         *modtail = mod;
 910                         modtail = &mod->sml_next;
 911
 912                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 913                         mod->sml_op = mop;
 914                         mod->sml_type.bv_val = NULL;
 915                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 916                         mod->sml_values =
 917                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 918                         ber_dupbv( &mod->sml_values[0], &name );
 919                         mod->sml_values[1].bv_len = 0;
 920                         mod->sml_values[1].bv_val = NULL;
 921                         assert( mod->sml_values[0].bv_val );
 922                         mod->sml_nvalues =
 923                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 924                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 925                         mod->sml_nvalues[1].bv_len = 0;
 926                         mod->sml_nvalues[1].bv_val = NULL;
 927                         assert( mod->sml_nvalues[0].bv_val );
 928                         *modtail = mod;
 929                         modtail = &mod->sml_next;
 930
 931                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 932                         mod->sml_op = mop;
 933                         mod->sml_type.bv_val = NULL;
 934                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 935                         mod->sml_values =
 936                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 937                         ber_dupbv( &mod->sml_values[0], &timestamp );
 938                         mod->sml_values[1].bv_len = 0;
 939                         mod->sml_values[1].bv_val = NULL;
 940                         assert( mod->sml_values[0].bv_val );
 941                         mod->sml_nvalues = NULL;
 942                         *modtail = mod;
 943                         modtail = &mod->sml_next;
 944                 }
 945         }
 946
 947         if ( SLAP_LASTMOD( op->o_bd )) {
 948                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 949                 mod->sml_op = mop;
 950                 mod->sml_type.bv_val = NULL;
 951                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 952                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 953                 ber_dupbv( &mod->sml_values[0], &csn );
 954                 mod->sml_values[1].bv_len = 0;
 955                 mod->sml_values[1].bv_val = NULL;
 956                 assert( mod->sml_values[0].bv_val );
 957                 mod->sml_nvalues = NULL;
 958                 *modtail = mod;
 959                 modtail = &mod->sml_next;
 960
 961                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 962                 mod->sml_op = mop;
 963                 mod->sml_type.bv_val = NULL;
 964                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 965                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 966                 ber_dupbv( &mod->sml_values[0], &name );
 967                 mod->sml_values[1].bv_len = 0;
 968                 mod->sml_values[1].bv_val = NULL;
 969                 assert( mod->sml_values[0].bv_val );
 970                 mod->sml_nvalues =
 971                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 972                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 973                 mod->sml_nvalues[1].bv_len = 0;
 974                 mod->sml_nvalues[1].bv_val = NULL;
 975                 assert( mod->sml_nvalues[0].bv_val );
 976                 *modtail = mod;
 977                 modtail = &mod->sml_next;
 978
 979                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 980                 mod->sml_op = mop;
 981                 mod->sml_type.bv_val = NULL;
 982                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 983                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 984                 ber_dupbv( &mod->sml_values[0], &timestamp );
 985                 mod->sml_values[1].bv_len = 0;
 986                 mod->sml_values[1].bv_val = NULL;
 987                 assert( mod->sml_values[0].bv_val );
 988                 mod->sml_nvalues = NULL;
 989                 *modtail = mod;
 990                 modtail = &mod->sml_next;
 991         }
 992
 993         *modtail = NULL;
 994         return LDAP_SUCCESS;
 995 }
 996