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 ( op->orm_modlist != NULL ) slap_mods_free( op->orm_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         char            textbuf[ SLAP_TEXT_BUFLEN ];
 230         size_t          textlen = sizeof( textbuf );
 231
 232         if( op->o_req_ndn.bv_len == 0 ) {
 233                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 234
 235                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 236                         "modify upon the root DSE not supported" );
 237                 goto cleanup;
 238
 239         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 240                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 241
 242                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 243                         "modification of subschema subentry not supported" );
 244                 goto cleanup;
 245         }
 246
 247 #ifdef LDAP_DEBUG
 248         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 249
 250         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 251                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 252                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 253                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 254                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 255                                         "replace")), tmp->sml_type.bv_val, 0 );
 256
 257                 if ( tmp->sml_values == NULL ) {
 258                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 259                            "\t\tno values", NULL, NULL );
 260                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 261                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 262                            "\t\tzero values", NULL, NULL );
 263                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 264                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 265                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 266                 } else {
 267                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 268                            "\t\tmultiple values", NULL, NULL );
 269                 }
 270         }
 271
 272         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 273                 char abuf[BUFSIZ/2], *ptr = abuf;
 274                 int len = 0;
 275
 276                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 277                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 278
 279                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 280                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 281                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 282                                     op->o_log_prefix, abuf, 0, 0, 0 );
 283
 284                                 len = 0;
 285                                 ptr = abuf;
 286
 287                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 288                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 289                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 290                                         continue;
 291                                 }
 292                         }
 293                         if (len) {
 294                                 *ptr++ = ' ';
 295                                 len++;
 296                         }
 297                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 298                         len += tmp->sml_type.bv_len;
 299                 }
 300                 if (len) {
 301                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 302                                 op->o_log_prefix, abuf, 0, 0, 0 );
 303                 }
 304         }
 305 #endif  /* LDAP_DEBUG */
 306
 307         manageDSAit = get_manageDSAit( op );
 308
 309         /*
 310          * We could be serving multiple database backends.  Select the
 311          * appropriate one, or send a referral to our "referral server"
 312          * if we don't hold it.
 313          */
 314         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 315         if ( op->o_bd == NULL ) {
 316                 rs->sr_ref = referral_rewrite( default_referral,
 317                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 318                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 319
 320                 if (rs->sr_ref != NULL ) {
 321                         rs->sr_err = LDAP_REFERRAL;
 322                         op->o_bd = frontendDB;
 323                         send_ldap_result( op, rs );
 324                         op->o_bd = NULL;
 325
 326                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 327                 } else {
 328                         op->o_bd = frontendDB;
 329                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 330                                 "no global superior knowledge" );
 331                         op->o_bd = NULL;
 332                 }
 333                 goto cleanup;
 334         }
 335
 336         /* If we've got a glued backend, check the real backend */
 337         op_be = op->o_bd;
 338         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 339                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 340         }
 341
 342         /* check restrictions */
 343         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 344                 send_ldap_result( op, rs );
 345                 goto cleanup;
 346         }
 347
 348         /* check for referrals */
 349         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 350                 goto cleanup;
 351         }
 352
 353         {
 354                 rs->sr_err = slap_mods_obsolete_check( op, modlist,
 355                         &rs->sr_text, textbuf, textlen );
 356                 if ( rs->sr_err != LDAP_SUCCESS ) {
 357                         send_ldap_result( op, rs );
 358                         goto cleanup;
 359                 }
 360         }
 361
 362         /* check for modify/increment support */
 363         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 364                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 365                         "modify/increment not supported in context" );
 366         }
 367
 368 #if defined( LDAP_SLAPI )
 369 #define pb      op->o_pb
 370         if ( pb ) {
 371                 slapi_int_pblock_set_operation( pb, op );
 372                 slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)op->o_req_dn.bv_val );
 373                 slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 374                 modv = slapi_int_modifications2ldapmods( &modlist );
 375                 slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 376
 377                 rs->sr_err = slapi_int_call_plugins( op->o_bd,
 378                         SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 379
 380                 /*
 381                  * It's possible that the preoperation plugin changed the
 382                  * modification array, so we need to convert it back to
 383                  * a Modification list.
 384                  *
 385                  * Calling slapi_int_modifications2ldapmods() destroyed modlist so
 386                  * we don't need to free it.
 387                  */
 388                 slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 389                 modlist = slapi_int_ldapmods2modifications( modv );
 390
 391                 if ( rs->sr_err < 0 ) {
 392                         /*
 393                          * A preoperation plugin failure will abort the
 394                          * entire operation.
 395                          */
 396                         Debug(LDAP_DEBUG_TRACE,
 397                                 "do_modify: modify preoperation plugin failed.\n",
 398                                 0, 0, 0);
 399                         if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
 400                                 (void *)&rs->sr_err ) != 0 ) || rs->sr_err == LDAP_SUCCESS )
 401                         {
 402                                 rs->sr_err = LDAP_OTHER;
 403                         }
 404                         slapi_int_free_ldapmods( modv );
 405                         modv = NULL;
 406                         goto cleanup;
 407                 }
 408         }
 409
 410         /*
 411          * NB: it is valid for the plugin to return no modifications
 412          * (for example, a plugin might store some attributes elsewhere
 413          * and remove them from the modification list; if only those
 414          * attribute types were included in the modification request,
 415          * then slapi_int_ldapmods2modifications() above will return
 416          * NULL).
 417          *
 418          * However, the post-operation plugin should still be
 419          * called.
 420          */
 421 #endif /* defined( LDAP_SLAPI ) */
 422
 423         /*
 424          * do the modify if 1 && (2 || 3)
 425          * 1) there is a modify function implemented in this backend;
 426          * 2) this backend is master for what it holds;
 427          * 3) it's a replica and the dn supplied is the update_ndn.
 428          */
 429         if ( op->o_bd->be_modify ) {
 430                 /* do the update here */
 431                 int repl_user = be_isupdate( op );
 432
 433                 /* Multimaster slapd does not have to check for replicator dn
 434                  * because it accepts each modify request
 435                  */
 436 #ifndef SLAPD_MULTIMASTER
 437                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 438 #endif
 439                 {
 440                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 441                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 442
 443                         op->o_bd = op_be;
 444
 445                         if ( !update ) {
 446                                 rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
 447                                         &rs->sr_text, textbuf, textlen );
 448                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 449                                         send_ldap_result( op, rs );
 450                                         goto cleanup;
 451                                 }
 452                         }
 453
 454                         if ( !repl_user ) {
 455                                 for( modtail = &modlist;
 456                                         *modtail != NULL;
 457                                         modtail = &(*modtail)->sml_next )
 458                                 {
 459                                         /* empty */
 460                                 }
 461
 462                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 463                                         &rs->sr_text, textbuf, textlen, 1 );
 464                                 if( rs->sr_err != LDAP_SUCCESS ) {
 465                                         send_ldap_result( op, rs );
 466                                         goto cleanup;
 467                                 }
 468                         }
 469
 470                         op->orm_modlist = modlist;
 471 #ifdef SLAPD_MULTIMASTER
 472                         if ( !repl_user )
 473 #endif
 474                         {
 475                                 /* but multimaster slapd logs only the ones
 476                                  * not from a replicator user */
 477                                 cb.sc_next = op->o_callback;
 478                                 op->o_callback = &cb;
 479                         }
 480                         op->o_bd->be_modify( op, rs );
 481
 482 #ifndef SLAPD_MULTIMASTER
 483                 /* send a referral */
 484                 } else {
 485                         BerVarray defref = op->o_bd->be_update_refs
 486                                 ? op->o_bd->be_update_refs : default_referral;
 487                         if ( defref != NULL ) {
 488                                 rs->sr_ref = referral_rewrite( defref,
 489                                         NULL, &op->o_req_dn,
 490                                         LDAP_SCOPE_DEFAULT );
 491                                 if ( rs->sr_ref == NULL ) {
 492                                         /* FIXME: must duplicate, because
 493                                          * overlays may muck with it */
 494                                         rs->sr_ref = defref;
 495                                 }
 496                                 rs->sr_err = LDAP_REFERRAL;
 497                                 send_ldap_result( op, rs );
 498                                 if ( rs->sr_ref != defref ) {
 499                                         ber_bvarray_free( rs->sr_ref );
 500                                 }
 501
 502                         } else {
 503                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 504                                         "shadow context; no update referral" );
 505                         }
 506 #endif
 507                 }
 508         } else {
 509                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 510                     "operation not supported within namingContext" );
 511         }
 512
 513 #if defined( LDAP_SLAPI )
 514         if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
 515                 SLAPI_PLUGIN_POST_MODIFY_FN, pb ) < 0 )
 516         {
 517                 Debug(LDAP_DEBUG_TRACE,
 518                         "do_modify: modify postoperation plugins failed.\n", 0, 0, 0);
 519         }
 520 #endif /* defined( LDAP_SLAPI ) */
 521
 522 cleanup:;
 523 #if defined( LDAP_SLAPI )
 524         if ( modv != NULL ) slapi_int_free_ldapmods( modv );
 525 #endif
 526
 527         return rs->sr_err;
 528 }
 529
 530 /*
 531  * Obsolete constraint checking.
 532  */
 533 int
 534 slap_mods_obsolete_check(
 535         Operation *op,
 536         Modifications *ml,
 537         const char **text,
 538         char *textbuf,
 539         size_t textlen )
 540 {
 541         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 542
 543         for ( ; ml != NULL; ml = ml->sml_next ) {
 544                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 545                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 546                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 547                                         ml->sml_values != NULL ))
 548                 {
 549                         /*
 550                          * attribute is obsolete,
 551                          * only allow replace/delete with no values
 552                          */
 553                         snprintf( textbuf, textlen,
 554                                 "%s: attribute is obsolete",
 555                                 ml->sml_type.bv_val );
 556                         *text = textbuf;
 557                         return LDAP_CONSTRAINT_VIOLATION;
 558                 }
 559         }
 560
 561         return LDAP_SUCCESS;
 562 }
 563
 564 /*
 565  * No-user-modification constraint checking.
 566  */
 567 int
 568 slap_mods_no_user_mod_check(
 569         Operation *op,
 570         Modifications *ml,
 571         const char **text,
 572         char *textbuf,
 573         size_t textlen )
 574 {
 575         for ( ; ml != NULL; ml = ml->sml_next ) {
 576                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 577
 578                 if( get_manageDIT( op )) {
 579                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 580                                 continue;
 581                         }
 582
 583                         /* attribute not manageable */
 584                         snprintf( textbuf, textlen,
 585                                 "%s: no-user-modification attribute not manageable",
 586                                 ml->sml_type.bv_val );
 587
 588                 } else {
 589                         /* user modification disallowed */
 590                         snprintf( textbuf, textlen,
 591                                 "%s: no user modification allowed",
 592                                 ml->sml_type.bv_val );
 593                 }
 594
 595                 *text = textbuf;
 596                 return LDAP_CONSTRAINT_VIOLATION;
 597         }
 598
 599         return LDAP_SUCCESS;
 600 }
 601
 602 /*
 603  * Do basic attribute type checking and syntax validation.
 604  */
 605 int slap_mods_check(
 606         Modifications *ml,
 607         const char **text,
 608         char *textbuf,
 609         size_t textlen,
 610         void *ctx )
 611 {
 612         int rc;
 613
 614         for( ; ml != NULL; ml = ml->sml_next ) {
 615                 AttributeDescription *ad = NULL;
 616
 617                 /* convert to attribute description */
 618                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 619
 620                 if( rc != LDAP_SUCCESS ) {
 621                         snprintf( textbuf, textlen, "%s: %s",
 622                                 ml->sml_type.bv_val, *text );
 623                         *text = textbuf;
 624                         return rc;
 625                 }
 626
 627                 ad = ml->sml_desc;
 628
 629                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 630                         && !slap_ad_is_binary( ad ))
 631                 {
 632                         /* attribute requires binary transfer */
 633                         snprintf( textbuf, textlen,
 634                                 "%s: requires ;binary transfer",
 635                                 ml->sml_type.bv_val );
 636                         *text = textbuf;
 637                         return LDAP_UNDEFINED_TYPE;
 638                 }
 639
 640                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 641                         && slap_ad_is_binary( ad ))
 642                 {
 643                         /* attribute does not require binary transfer */
 644                         snprintf( textbuf, textlen,
 645                                 "%s: disallows ;binary transfer",
 646                                 ml->sml_type.bv_val );
 647                         *text = textbuf;
 648                         return LDAP_UNDEFINED_TYPE;
 649                 }
 650
 651                 if( slap_ad_is_tag_range( ad )) {
 652                         /* attribute requires binary transfer */
 653                         snprintf( textbuf, textlen,
 654                                 "%s: inappropriate use of tag range option",
 655                                 ml->sml_type.bv_val );
 656                         *text = textbuf;
 657                         return LDAP_UNDEFINED_TYPE;
 658                 }
 659
 660 #if 0
 661                 if ( is_at_obsolete( ad->ad_type ) &&
 662                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 663                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 664                                         ml->sml_values != NULL ))
 665                 {
 666                         /*
 667                          * attribute is obsolete,
 668                          * only allow replace/delete with no values
 669                          */
 670                         snprintf( textbuf, textlen,
 671                                 "%s: attribute is obsolete",
 672                                 ml->sml_type.bv_val );
 673                         *text = textbuf;
 674                         return LDAP_CONSTRAINT_VIOLATION;
 675                 }
 676 #endif
 677
 678                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 679 #ifdef SLAPD_REAL_SYNTAX
 680                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 681 #endif
 682                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 683                 {
 684                         /*
 685                          * attribute values must be INTEGER or REAL
 686                          */
 687                         snprintf( textbuf, textlen,
 688                                 "%s: attribute syntax inappropriate for increment",
 689                                 ml->sml_type.bv_val );
 690                         *text = textbuf;
 691                         return LDAP_CONSTRAINT_VIOLATION;
 692                 }
 693
 694                 /*
 695                  * check values
 696                  */
 697                 if( ml->sml_values != NULL ) {
 698                         ber_len_t nvals;
 699                         slap_syntax_validate_func *validate =
 700                                 ad->ad_type->sat_syntax->ssyn_validate;
 701                         slap_syntax_transform_func *pretty =
 702                                 ad->ad_type->sat_syntax->ssyn_pretty;
 703
 704                         if( !pretty && !validate ) {
 705                                 *text = "no validator for syntax";
 706                                 snprintf( textbuf, textlen,
 707                                         "%s: no validator for syntax %s",
 708                                         ml->sml_type.bv_val,
 709                                         ad->ad_type->sat_syntax->ssyn_oid );
 710                                 *text = textbuf;
 711                                 return LDAP_INVALID_SYNTAX;
 712                         }
 713
 714                         /*
 715                          * check that each value is valid per syntax
 716                          *      and pretty if appropriate
 717                          */
 718                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 719                                 struct berval pval;
 720                                 if( pretty ) {
 721                                         rc = pretty( ad->ad_type->sat_syntax,
 722                                                 &ml->sml_values[nvals], &pval, ctx );
 723                                 } else {
 724                                         rc = validate( ad->ad_type->sat_syntax,
 725                                                 &ml->sml_values[nvals] );
 726                                 }
 727
 728                                 if( rc != 0 ) {
 729                                         snprintf( textbuf, textlen,
 730                                                 "%s: value #%ld invalid per syntax",
 731                                                 ml->sml_type.bv_val, (long) nvals );
 732                                         *text = textbuf;
 733                                         return LDAP_INVALID_SYNTAX;
 734                                 }
 735
 736                                 if( pretty ) {
 737                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 738                                         ml->sml_values[nvals] = pval;
 739                                 }
 740                         }
 741
 742                         /*
 743                          * a rough single value check... an additional check is needed
 744                          * to catch add of single value to existing single valued attribute
 745                          */
 746                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 747                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 748                         {
 749                                 snprintf( textbuf, textlen,
 750                                         "%s: multiple values provided",
 751                                         ml->sml_type.bv_val );
 752                                 *text = textbuf;
 753                                 return LDAP_CONSTRAINT_VIOLATION;
 754                         }
 755
 756                         /* if the type has a normalizer, generate the
 757                          * normalized values. otherwise leave them NULL.
 758                          *
 759                          * this is different from the rule for attributes
 760                          * in an entry - in an attribute list, the normalized
 761                          * value is set equal to the non-normalized value
 762                          * when there is no normalizer.
 763                          */
 764                         if( nvals && ad->ad_type->sat_equality &&
 765                                 ad->ad_type->sat_equality->smr_normalize )
 766                         {
 767                                 ml->sml_nvalues = ber_memalloc_x(
 768                                         (nvals+1)*sizeof(struct berval), ctx );
 769
 770                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 771                                         rc = ad->ad_type->sat_equality->smr_normalize(
 772                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 773                                                 ad->ad_type->sat_syntax,
 774                                                 ad->ad_type->sat_equality,
 775                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 776                                         if( rc ) {
 777                                                 Debug( LDAP_DEBUG_ANY,
 778                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 779                                                         rc, 0, 0 );
 780                                                 snprintf( textbuf, textlen,
 781                                                         "%s: value #%ld normalization failed",
 782                                                         ml->sml_type.bv_val, (long) nvals );
 783                                                 *text = textbuf;
 784                                                 return rc;
 785                                         }
 786                                 }
 787
 788                                 ml->sml_nvalues[nvals].bv_val = NULL;
 789                                 ml->sml_nvalues[nvals].bv_len = 0;
 790                         }
 791
 792                         /* check for duplicates, but ignore Deletes.
 793                          */
 794                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 795                                 int             i, j, rc, match;
 796                                 MatchingRule *mr = ad->ad_type->sat_equality;
 797
 798                                 for ( i = 1; i < nvals ; i++ ) {
 799                                         /* test asserted values against themselves */
 800                                         for( j = 0; j < i; j++ ) {
 801                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 802                                                         SLAP_MR_EQUALITY
 803                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 804                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 805                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 806                                                         ml->sml_nvalues
 807                                                                 ? &ml->sml_nvalues[i]
 808                                                                 : &ml->sml_values[i],
 809                                                         ml->sml_nvalues
 810                                                                 ? &ml->sml_nvalues[j]
 811                                                                 : &ml->sml_values[j],
 812                                                         text );
 813                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 814                                                         /* value exists already */
 815                                                         snprintf( textbuf, textlen,
 816                                                                 "%s: value #%d provided more than once",
 817                                                                 ml->sml_desc->ad_cname.bv_val, j );
 818                                                         *text = textbuf;
 819                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 820
 821                                                 } else if ( rc != LDAP_SUCCESS ) {
 822                                                         return rc;
 823                                                 }
 824                                         }
 825                                 }
 826                         }
 827
 828                 }
 829         }
 830
 831         return LDAP_SUCCESS;
 832 }
 833
 834 int slap_mods_opattrs(
 835         Operation *op,
 836         Modifications *mods,
 837         Modifications **modtail,
 838         const char **text,
 839         char *textbuf, size_t textlen,
 840         int manage_ctxcsn )
 841 {
 842         struct berval name, timestamp, csn;
 843         struct berval nname;
 844         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 845         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 846         Modifications *mod;
 847
 848         int mop = op->o_tag == LDAP_REQ_ADD
 849                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 850
 851         assert( modtail != NULL );
 852         assert( *modtail == NULL );
 853
 854         if ( SLAP_LASTMOD( op->o_bd )) {
 855                 struct tm *ltm;
 856 #ifdef HAVE_GMTIME_R
 857                 struct tm ltm_buf;
 858 #endif
 859                 time_t now = slap_get_time();
 860
 861 #ifdef HAVE_GMTIME_R
 862                 ltm = gmtime_r( &now, &ltm_buf );
 863 #else
 864                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 865                 ltm = gmtime( &now );
 866 #endif /* HAVE_GMTIME_R */
 867                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 868
 869                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 870
 871 #ifndef HAVE_GMTIME_R
 872                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 873 #endif
 874
 875                 timestamp.bv_val = timebuf;
 876                 timestamp.bv_len = strlen(timebuf);
 877
 878                 if( op->o_dn.bv_len == 0 ) {
 879                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 880                         nname = name;
 881                 } else {
 882                         name = op->o_dn;
 883                         nname = op->o_ndn;
 884                 }
 885         }
 886
 887         if( op->o_tag == LDAP_REQ_ADD ) {
 888                 struct berval tmpval;
 889
 890                 {
 891                         int rc = mods_structural_class( mods, &tmpval,
 892                                 text, textbuf, textlen );
 893                         if( rc != LDAP_SUCCESS ) return rc;
 894
 895                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 896                         mod->sml_op = mop;
 897                         mod->sml_type.bv_val = NULL;
 898                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 899                         mod->sml_values =
 900                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 901                         ber_dupbv( &mod->sml_values[0], &tmpval );
 902                         mod->sml_values[1].bv_len = 0;
 903                         mod->sml_values[1].bv_val = NULL;
 904                         assert( mod->sml_values[0].bv_val );
 905                         mod->sml_nvalues =
 906                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 907                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 908                         mod->sml_nvalues[1].bv_len = 0;
 909                         mod->sml_nvalues[1].bv_val = NULL;
 910                         assert( mod->sml_nvalues[0].bv_val );
 911                         *modtail = mod;
 912                         modtail = &mod->sml_next;
 913                 }
 914
 915                 if ( SLAP_LASTMOD( op->o_bd )) {
 916                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 917
 918                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 919                         tmpval.bv_val = uuidbuf;
 920
 921                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 922                         mod->sml_op = mop;
 923                         mod->sml_type.bv_val = NULL;
 924                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 925                         mod->sml_values =
 926                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 927                         ber_dupbv( &mod->sml_values[0], &tmpval );
 928                         mod->sml_values[1].bv_len = 0;
 929                         mod->sml_values[1].bv_val = NULL;
 930                         assert( mod->sml_values[0].bv_val );
 931                         mod->sml_nvalues =
 932                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 933                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 934                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 935                                         mod->sml_desc->ad_type->sat_syntax,
 936                                         mod->sml_desc->ad_type->sat_equality,
 937                                         mod->sml_values, mod->sml_nvalues, NULL );
 938                         mod->sml_nvalues[1].bv_len = 0;
 939                         mod->sml_nvalues[1].bv_val = NULL;
 940                         *modtail = mod;
 941                         modtail = &mod->sml_next;
 942
 943                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 944                         mod->sml_op = mop;
 945                         mod->sml_type.bv_val = NULL;
 946                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 947                         mod->sml_values =
 948                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 949                         ber_dupbv( &mod->sml_values[0], &name );
 950                         mod->sml_values[1].bv_len = 0;
 951                         mod->sml_values[1].bv_val = NULL;
 952                         assert( mod->sml_values[0].bv_val );
 953                         mod->sml_nvalues =
 954                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 955                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 956                         mod->sml_nvalues[1].bv_len = 0;
 957                         mod->sml_nvalues[1].bv_val = NULL;
 958                         assert( mod->sml_nvalues[0].bv_val );
 959                         *modtail = mod;
 960                         modtail = &mod->sml_next;
 961
 962                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 963                         mod->sml_op = mop;
 964                         mod->sml_type.bv_val = NULL;
 965                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 966                         mod->sml_values =
 967                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 968                         ber_dupbv( &mod->sml_values[0], &timestamp );
 969                         mod->sml_values[1].bv_len = 0;
 970                         mod->sml_values[1].bv_val = NULL;
 971                         assert( mod->sml_values[0].bv_val );
 972                         mod->sml_nvalues = NULL;
 973                         *modtail = mod;
 974                         modtail = &mod->sml_next;
 975                 }
 976         }
 977
 978         if ( SLAP_LASTMOD( op->o_bd )) {
 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_entryCSN;
 983                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 984                 ber_dupbv( &mod->sml_values[0], &csn );
 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                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 993                 mod->sml_op = mop;
 994                 mod->sml_type.bv_val = NULL;
 995                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 996                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 997                 ber_dupbv( &mod->sml_values[0], &name );
 998                 mod->sml_values[1].bv_len = 0;
 999                 mod->sml_values[1].bv_val = NULL;
1000                 assert( mod->sml_values[0].bv_val );
1001                 mod->sml_nvalues =
1002                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1003                 ber_dupbv( &mod->sml_nvalues[0], &nname );
1004                 mod->sml_nvalues[1].bv_len = 0;
1005                 mod->sml_nvalues[1].bv_val = NULL;
1006                 assert( mod->sml_nvalues[0].bv_val );
1007                 *modtail = mod;
1008                 modtail = &mod->sml_next;
1009
1010                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1011                 mod->sml_op = mop;
1012                 mod->sml_type.bv_val = NULL;
1013                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
1014                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1015                 ber_dupbv( &mod->sml_values[0], &timestamp );
1016                 mod->sml_values[1].bv_len = 0;
1017                 mod->sml_values[1].bv_val = NULL;
1018                 assert( mod->sml_values[0].bv_val );
1019                 mod->sml_nvalues = NULL;
1020                 *modtail = mod;
1021                 modtail = &mod->sml_next;
1022         }
1023
1024         *modtail = NULL;
1025         return LDAP_SUCCESS;
1026 }
1027