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         BackendDB *op_be;
 229
 230         if( op->o_req_ndn.bv_len == 0 ) {
 231                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 232
 233                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 234                         "modify upon the root DSE not supported" );
 235                 goto cleanup;
 236
 237         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 238                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 239
 240                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 241                         "modification of subschema subentry not supported" );
 242                 goto cleanup;
 243         }
 244
 245 #ifdef LDAP_DEBUG
 246         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 247
 248         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 249                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 250                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 251                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 252                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 253                                         "replace")), tmp->sml_type.bv_val, 0 );
 254
 255                 if ( tmp->sml_values == NULL ) {
 256                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 257                            "\t\tno values", NULL, NULL );
 258                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 259                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 260                            "\t\tzero values", NULL, NULL );
 261                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 262                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 263                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 264                 } else {
 265                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 266                            "\t\tmultiple values", NULL, NULL );
 267                 }
 268         }
 269
 270         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 271                 char abuf[BUFSIZ/2], *ptr = abuf;
 272                 int len = 0;
 273
 274                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 275                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 276
 277                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 278                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 279                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 280                                     op->o_log_prefix, abuf, 0, 0, 0 );
 281
 282                                 len = 0;
 283                                 ptr = abuf;
 284
 285                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 286                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 287                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 288                                         continue;
 289                                 }
 290                         }
 291                         if (len) {
 292                                 *ptr++ = ' ';
 293                                 len++;
 294                         }
 295                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 296                         len += tmp->sml_type.bv_len;
 297                 }
 298                 if (len) {
 299                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 300                                 op->o_log_prefix, abuf, 0, 0, 0 );
 301                 }
 302         }
 303 #endif  /* LDAP_DEBUG */
 304
 305         manageDSAit = get_manageDSAit( op );
 306
 307         /*
 308          * We could be serving multiple database backends.  Select the
 309          * appropriate one, or send a referral to our "referral server"
 310          * if we don't hold it.
 311          */
 312         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 313         if ( op->o_bd == NULL ) {
 314                 rs->sr_ref = referral_rewrite( default_referral,
 315                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 316                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 317
 318                 if (rs->sr_ref != NULL ) {
 319                         rs->sr_err = LDAP_REFERRAL;
 320                         op->o_bd = frontendDB;
 321                         send_ldap_result( op, rs );
 322                         op->o_bd = NULL;
 323
 324                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 325                 } else {
 326                         op->o_bd = frontendDB;
 327                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 328                                 "no global superior knowledge" );
 329                         op->o_bd = NULL;
 330                 }
 331                 goto cleanup;
 332         }
 333
 334         /* If we've got a glued backend, check the real backend */
 335         op_be = op->o_bd;
 336         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 337                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 338         }
 339
 340         /* check restrictions */
 341         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 342                 send_ldap_result( op, rs );
 343                 goto cleanup;
 344         }
 345
 346         /* check for referrals */
 347         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 348                 goto cleanup;
 349         }
 350
 351         /* check for modify/increment support */
 352         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 353                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 354                         "modify/increment not supported in context" );
 355         }
 356
 357 #if defined( LDAP_SLAPI )
 358 #define pb      op->o_pb
 359         if ( pb ) {
 360                 slapi_int_pblock_set_operation( pb, op );
 361                 slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)op->o_req_dn.bv_val );
 362                 slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 363                 modv = slapi_int_modifications2ldapmods( &modlist );
 364                 slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 365
 366                 rs->sr_err = slapi_int_call_plugins( op->o_bd,
 367                         SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 368
 369                 /*
 370                  * It's possible that the preoperation plugin changed the
 371                  * modification array, so we need to convert it back to
 372                  * a Modification list.
 373                  *
 374                  * Calling slapi_int_modifications2ldapmods() destroyed modlist so
 375                  * we don't need to free it.
 376                  */
 377                 slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 378                 modlist = slapi_int_ldapmods2modifications( modv );
 379
 380                 if ( rs->sr_err < 0 ) {
 381                         /*
 382                          * A preoperation plugin failure will abort the
 383                          * entire operation.
 384                          */
 385                         Debug(LDAP_DEBUG_TRACE,
 386                                 "do_modify: modify preoperation plugin failed.\n",
 387                                 0, 0, 0);
 388                         if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
 389                                 (void *)&rs->sr_err ) != 0 ) || rs->sr_err == LDAP_SUCCESS )
 390                         {
 391                                 rs->sr_err = LDAP_OTHER;
 392                         }
 393                         slapi_int_free_ldapmods( modv );
 394                         modv = NULL;
 395                         goto cleanup;
 396                 }
 397         }
 398
 399         /*
 400          * NB: it is valid for the plugin to return no modifications
 401          * (for example, a plugin might store some attributes elsewhere
 402          * and remove them from the modification list; if only those
 403          * attribute types were included in the modification request,
 404          * then slapi_int_ldapmods2modifications() above will return
 405          * NULL).
 406          *
 407          * However, the post-operation plugin should still be
 408          * called.
 409          */
 410 #endif /* defined( LDAP_SLAPI ) */
 411
 412         /*
 413          * do the modify if 1 && (2 || 3)
 414          * 1) there is a modify function implemented in this backend;
 415          * 2) this backend is master for what it holds;
 416          * 3) it's a replica and the dn supplied is the update_ndn.
 417          */
 418         if ( op->o_bd->be_modify ) {
 419                 /* do the update here */
 420                 int repl_user = be_isupdate( op );
 421
 422                 /* Multimaster slapd does not have to check for replicator dn
 423                  * because it accepts each modify request
 424                  */
 425 #ifndef SLAPD_MULTIMASTER
 426                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 427 #endif
 428                 {
 429                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 430                         char            textbuf[ SLAP_TEXT_BUFLEN ];
 431                         size_t          textlen = sizeof( textbuf );
 432                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 433
 434                         op->o_bd = op_be;
 435
 436                         if ( !update ) {
 437                                 rs->sr_err = slap_mods_no_update_check( modlist,
 438                                                 &rs->sr_text, textbuf, textlen );
 439                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 440                                         send_ldap_result( op, rs );
 441                                         goto cleanup;
 442                                 }
 443                         }
 444
 445
 446
 447                         if ( !repl_user ) {
 448                                 for( modtail = &modlist;
 449                                         *modtail != NULL;
 450                                         modtail = &(*modtail)->sml_next )
 451                                 {
 452                                         /* empty */
 453                                 }
 454
 455                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 456                                         &rs->sr_text, textbuf, textlen, 1 );
 457                                 if( rs->sr_err != LDAP_SUCCESS ) {
 458                                         send_ldap_result( op, rs );
 459                                         goto cleanup;
 460                                 }
 461                         }
 462
 463                         op->orm_modlist = modlist;
 464 #ifdef SLAPD_MULTIMASTER
 465                         if ( !repl_user )
 466 #endif
 467                         {
 468                                 /* but multimaster slapd logs only the ones
 469                                  * not from a replicator user */
 470                                 cb.sc_next = op->o_callback;
 471                                 op->o_callback = &cb;
 472                         }
 473                         op->o_bd->be_modify( op, rs );
 474
 475 #ifndef SLAPD_MULTIMASTER
 476                 /* send a referral */
 477                 } else {
 478                         BerVarray defref = op->o_bd->be_update_refs
 479                                 ? op->o_bd->be_update_refs : default_referral;
 480                         if ( defref != NULL ) {
 481                                 rs->sr_ref = referral_rewrite( defref,
 482                                         NULL, &op->o_req_dn,
 483                                         LDAP_SCOPE_DEFAULT );
 484                                 if ( rs->sr_ref == NULL ) {
 485                                         /* FIXME: must duplicate, because
 486                                          * overlays may muck with it */
 487                                         rs->sr_ref = defref;
 488                                 }
 489                                 rs->sr_err = LDAP_REFERRAL;
 490                                 send_ldap_result( op, rs );
 491                                 if ( rs->sr_ref != defref ) {
 492                                         ber_bvarray_free( rs->sr_ref );
 493                                 }
 494
 495                         } else {
 496                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 497                                         "shadow context; no update referral" );
 498                         }
 499 #endif
 500                 }
 501         } else {
 502                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 503                     "operation not supported within namingContext" );
 504         }
 505
 506 #if defined( LDAP_SLAPI )
 507         if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
 508                 SLAPI_PLUGIN_POST_MODIFY_FN, pb ) < 0 )
 509         {
 510                 Debug(LDAP_DEBUG_TRACE,
 511                         "do_modify: modify postoperation plugins failed.\n", 0, 0, 0);
 512         }
 513 #endif /* defined( LDAP_SLAPI ) */
 514
 515 cleanup:;
 516 #if defined( LDAP_SLAPI )
 517         if ( modv != NULL ) slapi_int_free_ldapmods( modv );
 518 #endif
 519
 520         return rs->sr_err;
 521 }
 522
 523 /*
 524  * Do non-update constraint checking.
 525  */
 526 int
 527 slap_mods_no_update_check(
 528         Modifications *ml,
 529         const char **text,
 530         char *textbuf,
 531         size_t textlen )
 532 {
 533         for ( ; ml != NULL; ml = ml->sml_next ) {
 534                 if ( is_at_no_user_mod( ml->sml_desc->ad_type ) ) {
 535                         /* user modification disallowed */
 536                         snprintf( textbuf, textlen,
 537                                 "%s: no user modification allowed",
 538                                 ml->sml_type.bv_val );
 539                         *text = textbuf;
 540                         return LDAP_CONSTRAINT_VIOLATION;
 541                 }
 542         }
 543
 544         return LDAP_SUCCESS;
 545 }
 546
 547 /*
 548  * Do basic attribute type checking and syntax validation.
 549  */
 550 int slap_mods_check(
 551         Modifications *ml,
 552         const char **text,
 553         char *textbuf,
 554         size_t textlen,
 555         void *ctx )
 556 {
 557         int rc;
 558
 559         for( ; ml != NULL; ml = ml->sml_next ) {
 560                 AttributeDescription *ad = NULL;
 561
 562                 /* convert to attribute description */
 563                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 564
 565                 if( rc != LDAP_SUCCESS ) {
 566                         snprintf( textbuf, textlen, "%s: %s",
 567                                 ml->sml_type.bv_val, *text );
 568                         *text = textbuf;
 569                         return rc;
 570                 }
 571
 572                 ad = ml->sml_desc;
 573
 574                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 575                         && !slap_ad_is_binary( ad ))
 576                 {
 577                         /* attribute requires binary transfer */
 578                         snprintf( textbuf, textlen,
 579                                 "%s: requires ;binary transfer",
 580                                 ml->sml_type.bv_val );
 581                         *text = textbuf;
 582                         return LDAP_UNDEFINED_TYPE;
 583                 }
 584
 585                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 586                         && slap_ad_is_binary( ad ))
 587                 {
 588                         /* attribute does not require binary transfer */
 589                         snprintf( textbuf, textlen,
 590                                 "%s: disallows ;binary transfer",
 591                                 ml->sml_type.bv_val );
 592                         *text = textbuf;
 593                         return LDAP_UNDEFINED_TYPE;
 594                 }
 595
 596                 if( slap_ad_is_tag_range( ad )) {
 597                         /* attribute requires binary transfer */
 598                         snprintf( textbuf, textlen,
 599                                 "%s: inappropriate use of tag range option",
 600                                 ml->sml_type.bv_val );
 601                         *text = textbuf;
 602                         return LDAP_UNDEFINED_TYPE;
 603                 }
 604
 605 #if 0
 606                 /* moved to slap_mods_no_update_check() */
 607                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 608                         /* user modification disallowed */
 609                         snprintf( textbuf, textlen,
 610                                 "%s: no user modification allowed",
 611                                 ml->sml_type.bv_val );
 612                         *text = textbuf;
 613                         return LDAP_CONSTRAINT_VIOLATION;
 614                 }
 615 #endif
 616
 617                 if ( is_at_obsolete( ad->ad_type ) &&
 618                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 619                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 620                                         ml->sml_values != NULL ))
 621                 {
 622                         /*
 623                          * attribute is obsolete,
 624                          * only allow replace/delete with no values
 625                          */
 626                         snprintf( textbuf, textlen,
 627                                 "%s: attribute is obsolete",
 628                                 ml->sml_type.bv_val );
 629                         *text = textbuf;
 630                         return LDAP_CONSTRAINT_VIOLATION;
 631                 }
 632
 633                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 634 #ifdef SLAPD_REAL_SYNTAX
 635                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 636 #endif
 637                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 638                 {
 639                         /*
 640                          * attribute values must be INTEGER or REAL
 641                          */
 642                         snprintf( textbuf, textlen,
 643                                 "%s: attribute syntax inappropriate for increment",
 644                                 ml->sml_type.bv_val );
 645                         *text = textbuf;
 646                         return LDAP_CONSTRAINT_VIOLATION;
 647                 }
 648
 649                 /*
 650                  * check values
 651                  */
 652                 if( ml->sml_values != NULL ) {
 653                         ber_len_t nvals;
 654                         slap_syntax_validate_func *validate =
 655                                 ad->ad_type->sat_syntax->ssyn_validate;
 656                         slap_syntax_transform_func *pretty =
 657                                 ad->ad_type->sat_syntax->ssyn_pretty;
 658
 659                         if( !pretty && !validate ) {
 660                                 *text = "no validator for syntax";
 661                                 snprintf( textbuf, textlen,
 662                                         "%s: no validator for syntax %s",
 663                                         ml->sml_type.bv_val,
 664                                         ad->ad_type->sat_syntax->ssyn_oid );
 665                                 *text = textbuf;
 666                                 return LDAP_INVALID_SYNTAX;
 667                         }
 668
 669                         /*
 670                          * check that each value is valid per syntax
 671                          *      and pretty if appropriate
 672                          */
 673                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 674                                 struct berval pval;
 675                                 if( pretty ) {
 676                                         rc = pretty( ad->ad_type->sat_syntax,
 677                                                 &ml->sml_values[nvals], &pval, ctx );
 678                                 } else {
 679                                         rc = validate( ad->ad_type->sat_syntax,
 680                                                 &ml->sml_values[nvals] );
 681                                 }
 682
 683                                 if( rc != 0 ) {
 684                                         snprintf( textbuf, textlen,
 685                                                 "%s: value #%ld invalid per syntax",
 686                                                 ml->sml_type.bv_val, (long) nvals );
 687                                         *text = textbuf;
 688                                         return LDAP_INVALID_SYNTAX;
 689                                 }
 690
 691                                 if( pretty ) {
 692                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 693                                         ml->sml_values[nvals] = pval;
 694                                 }
 695                         }
 696
 697                         /*
 698                          * a rough single value check... an additional check is needed
 699                          * to catch add of single value to existing single valued attribute
 700                          */
 701                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 702                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 703                         {
 704                                 snprintf( textbuf, textlen,
 705                                         "%s: multiple values provided",
 706                                         ml->sml_type.bv_val );
 707                                 *text = textbuf;
 708                                 return LDAP_CONSTRAINT_VIOLATION;
 709                         }
 710
 711                         /* if the type has a normalizer, generate the
 712                          * normalized values. otherwise leave them NULL.
 713                          *
 714                          * this is different from the rule for attributes
 715                          * in an entry - in an attribute list, the normalized
 716                          * value is set equal to the non-normalized value
 717                          * when there is no normalizer.
 718                          */
 719                         if( nvals && ad->ad_type->sat_equality &&
 720                                 ad->ad_type->sat_equality->smr_normalize )
 721                         {
 722                                 ml->sml_nvalues = ber_memalloc_x(
 723                                         (nvals+1)*sizeof(struct berval), ctx );
 724
 725                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 726                                         rc = ad->ad_type->sat_equality->smr_normalize(
 727                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 728                                                 ad->ad_type->sat_syntax,
 729                                                 ad->ad_type->sat_equality,
 730                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 731                                         if( rc ) {
 732                                                 Debug( LDAP_DEBUG_ANY,
 733                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 734                                                         rc, 0, 0 );
 735                                                 snprintf( textbuf, textlen,
 736                                                         "%s: value #%ld normalization failed",
 737                                                         ml->sml_type.bv_val, (long) nvals );
 738                                                 *text = textbuf;
 739                                                 return rc;
 740                                         }
 741                                 }
 742
 743                                 ml->sml_nvalues[nvals].bv_val = NULL;
 744                                 ml->sml_nvalues[nvals].bv_len = 0;
 745                         }
 746
 747                         if( nvals ) {
 748                                 /* check for duplicates */
 749                                 int             i, j;
 750                                 MatchingRule *mr = ad->ad_type->sat_equality;
 751
 752                                 /* check if the values we're adding already exist */
 753                                 if( mr == NULL || !mr->smr_match ) {
 754                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 755                                                 /* test asserted values against themselves */
 756                                                 for( j = 0; j < i; j++ ) {
 757                                                         if ( bvmatch( &ml->sml_values[i],
 758                                                                 &ml->sml_values[j] ) )
 759                                                         {
 760                                                                 /* value exists already */
 761                                                                 snprintf( textbuf, textlen,
 762                                                                         "%s: value #%d provided more than once",
 763                                                                         ml->sml_desc->ad_cname.bv_val, j );
 764                                                                 *text = textbuf;
 765                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 766                                                         }
 767                                                 }
 768                                         }
 769
 770                                 } else {
 771                                         int rc;
 772                                         int match;
 773
 774                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 775                                                 /* test asserted values against themselves */
 776                                                 for( j = 0; j < i; j++ ) {
 777                                                         rc = value_match( &match, ml->sml_desc, mr,
 778                                                                 SLAP_MR_EQUALITY
 779                                                                         | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 780                                                                         | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 781                                                                         | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 782                                                                 ml->sml_nvalues
 783                                                                         ? &ml->sml_nvalues[i]
 784                                                                         : &ml->sml_values[i],
 785                                                                 ml->sml_nvalues
 786                                                                         ? &ml->sml_nvalues[j]
 787                                                                         : &ml->sml_values[j],
 788                                                                 text );
 789                                                         if ( rc == LDAP_SUCCESS && match == 0 ) {
 790                                                                 /* value exists already */
 791                                                                 snprintf( textbuf, textlen,
 792                                                                         "%s: value #%d provided more than once",
 793                                                                         ml->sml_desc->ad_cname.bv_val, j );
 794                                                                 *text = textbuf;
 795                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 796
 797                                                         } else if ( rc != LDAP_SUCCESS ) {
 798                                                                 return rc;
 799                                                         }
 800                                                 }
 801                                         }
 802                                 }
 803                         }
 804
 805                 }
 806         }
 807
 808         return LDAP_SUCCESS;
 809 }
 810
 811 int slap_mods_opattrs(
 812         Operation *op,
 813         Modifications *mods,
 814         Modifications **modtail,
 815         const char **text,
 816         char *textbuf, size_t textlen,
 817         int manage_ctxcsn )
 818 {
 819         struct berval name, timestamp, csn;
 820         struct berval nname;
 821         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 822         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 823         Modifications *mod;
 824
 825         int mop = op->o_tag == LDAP_REQ_ADD
 826                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 827
 828         assert( modtail != NULL );
 829         assert( *modtail == NULL );
 830
 831         if ( SLAP_LASTMOD( op->o_bd )) {
 832                 struct tm *ltm;
 833 #ifdef HAVE_GMTIME_R
 834                 struct tm ltm_buf;
 835 #endif
 836                 time_t now = slap_get_time();
 837
 838 #ifdef HAVE_GMTIME_R
 839                 ltm = gmtime_r( &now, &ltm_buf );
 840 #else
 841                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 842                 ltm = gmtime( &now );
 843 #endif /* HAVE_GMTIME_R */
 844                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 845
 846                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 847
 848 #ifndef HAVE_GMTIME_R
 849                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 850 #endif
 851
 852                 timestamp.bv_val = timebuf;
 853                 timestamp.bv_len = strlen(timebuf);
 854
 855                 if( op->o_dn.bv_len == 0 ) {
 856                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 857                         nname = name;
 858                 } else {
 859                         name = op->o_dn;
 860                         nname = op->o_ndn;
 861                 }
 862         }
 863
 864         if( op->o_tag == LDAP_REQ_ADD ) {
 865                 struct berval tmpval;
 866
 867                 if( global_schemacheck ) {
 868                         int rc = mods_structural_class( mods, &tmpval,
 869                                 text, textbuf, textlen );
 870                         if( rc != LDAP_SUCCESS ) return rc;
 871
 872                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 873                         mod->sml_op = mop;
 874                         mod->sml_type.bv_val = NULL;
 875                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 876                         mod->sml_values =
 877                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 878                         ber_dupbv( &mod->sml_values[0], &tmpval );
 879                         mod->sml_values[1].bv_len = 0;
 880                         mod->sml_values[1].bv_val = NULL;
 881                         assert( mod->sml_values[0].bv_val );
 882                         mod->sml_nvalues =
 883                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 884                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 885                         mod->sml_nvalues[1].bv_len = 0;
 886                         mod->sml_nvalues[1].bv_val = NULL;
 887                         assert( mod->sml_nvalues[0].bv_val );
 888                         *modtail = mod;
 889                         modtail = &mod->sml_next;
 890                 }
 891
 892                 if ( SLAP_LASTMOD( op->o_bd )) {
 893                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 894
 895                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 896                         tmpval.bv_val = uuidbuf;
 897
 898                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 899                         mod->sml_op = mop;
 900                         mod->sml_type.bv_val = NULL;
 901                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 902                         mod->sml_values =
 903                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 904                         ber_dupbv( &mod->sml_values[0], &tmpval );
 905                         mod->sml_values[1].bv_len = 0;
 906                         mod->sml_values[1].bv_val = NULL;
 907                         assert( mod->sml_values[0].bv_val );
 908                         mod->sml_nvalues =
 909                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 910                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 911                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 912                                         mod->sml_desc->ad_type->sat_syntax,
 913                                         mod->sml_desc->ad_type->sat_equality,
 914                                         mod->sml_values, mod->sml_nvalues, NULL );
 915                         mod->sml_nvalues[1].bv_len = 0;
 916                         mod->sml_nvalues[1].bv_val = NULL;
 917                         *modtail = mod;
 918                         modtail = &mod->sml_next;
 919
 920                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 921                         mod->sml_op = mop;
 922                         mod->sml_type.bv_val = NULL;
 923                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 924                         mod->sml_values =
 925                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 926                         ber_dupbv( &mod->sml_values[0], &name );
 927                         mod->sml_values[1].bv_len = 0;
 928                         mod->sml_values[1].bv_val = NULL;
 929                         assert( mod->sml_values[0].bv_val );
 930                         mod->sml_nvalues =
 931                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 932                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 933                         mod->sml_nvalues[1].bv_len = 0;
 934                         mod->sml_nvalues[1].bv_val = NULL;
 935                         assert( mod->sml_nvalues[0].bv_val );
 936                         *modtail = mod;
 937                         modtail = &mod->sml_next;
 938
 939                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 940                         mod->sml_op = mop;
 941                         mod->sml_type.bv_val = NULL;
 942                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 943                         mod->sml_values =
 944                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 945                         ber_dupbv( &mod->sml_values[0], &timestamp );
 946                         mod->sml_values[1].bv_len = 0;
 947                         mod->sml_values[1].bv_val = NULL;
 948                         assert( mod->sml_values[0].bv_val );
 949                         mod->sml_nvalues = NULL;
 950                         *modtail = mod;
 951                         modtail = &mod->sml_next;
 952                 }
 953         }
 954
 955         if ( SLAP_LASTMOD( op->o_bd )) {
 956                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 957                 mod->sml_op = mop;
 958                 mod->sml_type.bv_val = NULL;
 959                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 960                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 961                 ber_dupbv( &mod->sml_values[0], &csn );
 962                 mod->sml_values[1].bv_len = 0;
 963                 mod->sml_values[1].bv_val = NULL;
 964                 assert( mod->sml_values[0].bv_val );
 965                 mod->sml_nvalues = NULL;
 966                 *modtail = mod;
 967                 modtail = &mod->sml_next;
 968
 969                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 970                 mod->sml_op = mop;
 971                 mod->sml_type.bv_val = NULL;
 972                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 973                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 974                 ber_dupbv( &mod->sml_values[0], &name );
 975                 mod->sml_values[1].bv_len = 0;
 976                 mod->sml_values[1].bv_val = NULL;
 977                 assert( mod->sml_values[0].bv_val );
 978                 mod->sml_nvalues =
 979                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 980                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 981                 mod->sml_nvalues[1].bv_len = 0;
 982                 mod->sml_nvalues[1].bv_val = NULL;
 983                 assert( mod->sml_nvalues[0].bv_val );
 984                 *modtail = mod;
 985                 modtail = &mod->sml_next;
 986
 987                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 988                 mod->sml_op = mop;
 989                 mod->sml_type.bv_val = NULL;
 990                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 991                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 992                 ber_dupbv( &mod->sml_values[0], &timestamp );
 993                 mod->sml_values[1].bv_len = 0;
 994                 mod->sml_values[1].bv_val = NULL;
 995                 assert( mod->sml_values[0].bv_val );
 996                 mod->sml_nvalues = NULL;
 997                 *modtail = mod;
 998                 modtail = &mod->sml_next;
 999         }
1000
1001         *modtail = NULL;
1002         return LDAP_SUCCESS;
1003 }
1004