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_flags = 0;
 108                 mod->sml_type = tmp.sml_type;
 109                 mod->sml_values = tmp.sml_values;
 110                 mod->sml_nvalues = NULL;
 111                 mod->sml_desc = NULL;
 112                 mod->sml_next = NULL;
 113                 *modtail = mod;
 114
 115                 switch( mop ) {
 116                 case LDAP_MOD_ADD:
 117                         if ( mod->sml_values == NULL ) {
 118                                 Debug( LDAP_DEBUG_ANY,
 119                                         "do_modify: modify/add operation (%ld) requires values\n",
 120                                         (long) mop, 0, 0 );
 121
 122                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 123                                         "modify/add operation requires values" );
 124                                 goto cleanup;
 125                         }
 126
 127                         /* fall through */
 128
 129                 case LDAP_MOD_DELETE:
 130                 case LDAP_MOD_REPLACE:
 131                         break;
 132
 133                 case LDAP_MOD_INCREMENT:
 134                         if( op->o_protocol >= LDAP_VERSION3 ) {
 135                                 increment++;
 136                                 if ( mod->sml_values == NULL ) {
 137                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 138                                                 "modify/increment operation (%ld) requires value\n",
 139                                                 (long) mop, 0, 0 );
 140
 141                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 142                                                 "modify/increment operation requires value" );
 143                                         goto cleanup;
 144                                 }
 145
 146                                 if( mod->sml_values[1].bv_val ) {
 147                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 148                                                 "operation (%ld) requires single value\n",
 149                                                 (long) mop, 0, 0 );
 150
 151                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 152                                                 "modify/increment operation requires single value" );
 153                                         goto cleanup;
 154                                 }
 155
 156                                 break;
 157                         }
 158                         /* fall thru */
 159
 160                 default: {
 161                                 Debug( LDAP_DEBUG_ANY,
 162                                         "do_modify: unrecognized modify operation (%ld)\n",
 163                                         (long) mop, 0, 0 );
 164
 165                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 166                                         "unrecognized modify operation" );
 167                                 goto cleanup;
 168                         }
 169                 }
 170
 171                 modtail = &mod->sml_next;
 172         }
 173         *modtail = NULL;
 174
 175         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 176                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 177
 178                 goto cleanup;
 179         }
 180
 181         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 182                 op->o_tmpmemctx );
 183         if( rs->sr_err != LDAP_SUCCESS ) {
 184                 Debug( LDAP_DEBUG_ANY,
 185                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 186                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 187                 goto cleanup;
 188         }
 189
 190         rs->sr_err = slap_mods_check( modlist, &rs->sr_text,
 191                 textbuf, textlen, NULL );
 192
 193         if ( rs->sr_err != LDAP_SUCCESS ) {
 194                 send_ldap_result( op, rs );
 195                 goto cleanup;
 196         }
 197
 198         /* FIXME: needs review */
 199         op->orm_modlist = modlist;
 200         op->orm_increment = increment;
 201
 202         op->o_bd = frontendDB;
 203         rs->sr_err = frontendDB->be_modify( op, rs );
 204
 205 cleanup:
 206         slap_graduate_commit_csn( op );
 207
 208         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 209         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 210         if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist );
 211
 212         return rs->sr_err;
 213 }
 214
 215 int
 216 fe_op_modify( Operation *op, SlapReply *rs )
 217 {
 218 #ifdef LDAP_DEBUG
 219         Modifications   *tmp;
 220 #endif
 221         int             manageDSAit;
 222         Modifications   *modlist = op->orm_modlist;
 223         Modifications   **modtail = &modlist;
 224 #ifdef LDAP_SLAPI
 225         LDAPMod         **modv = NULL;
 226 #endif
 227         int             increment = op->orm_increment;
 228         int             rc = 0;
 229         BackendDB *op_be;
 230         char            textbuf[ SLAP_TEXT_BUFLEN ];
 231         size_t          textlen = sizeof( textbuf );
 232
 233         if( op->o_req_ndn.bv_len == 0 ) {
 234                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 235
 236                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 237                         "modify upon the root DSE not supported" );
 238                 goto cleanup;
 239
 240         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 241                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 242
 243                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 244                         "modification of subschema subentry not supported" );
 245                 goto cleanup;
 246         }
 247
 248 #ifdef LDAP_DEBUG
 249         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 250
 251         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 252                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 253                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 254                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 255                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 256                                         "replace")), tmp->sml_type.bv_val, 0 );
 257
 258                 if ( tmp->sml_values == NULL ) {
 259                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 260                            "\t\tno values", NULL, NULL );
 261                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 262                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 263                            "\t\tzero values", NULL, NULL );
 264                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 265                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 266                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 267                 } else {
 268                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 269                            "\t\tmultiple values", NULL, NULL );
 270                 }
 271         }
 272
 273         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 274                 char abuf[BUFSIZ/2], *ptr = abuf;
 275                 int len = 0;
 276
 277                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 278                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 279
 280                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 281                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 282                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 283                                     op->o_log_prefix, abuf, 0, 0, 0 );
 284
 285                                 len = 0;
 286                                 ptr = abuf;
 287
 288                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 289                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 290                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 291                                         continue;
 292                                 }
 293                         }
 294                         if (len) {
 295                                 *ptr++ = ' ';
 296                                 len++;
 297                         }
 298                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 299                         len += tmp->sml_type.bv_len;
 300                 }
 301                 if (len) {
 302                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 303                                 op->o_log_prefix, abuf, 0, 0, 0 );
 304                 }
 305         }
 306 #endif  /* LDAP_DEBUG */
 307
 308         manageDSAit = get_manageDSAit( op );
 309
 310         /*
 311          * We could be serving multiple database backends.  Select the
 312          * appropriate one, or send a referral to our "referral server"
 313          * if we don't hold it.
 314          */
 315         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 316         if ( op->o_bd == NULL ) {
 317                 rs->sr_ref = referral_rewrite( default_referral,
 318                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 319                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 320
 321                 if (rs->sr_ref != NULL ) {
 322                         rs->sr_err = LDAP_REFERRAL;
 323                         op->o_bd = frontendDB;
 324                         send_ldap_result( op, rs );
 325                         op->o_bd = NULL;
 326
 327                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 328                 } else {
 329                         op->o_bd = frontendDB;
 330                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 331                                 "no global superior knowledge" );
 332                         op->o_bd = NULL;
 333                 }
 334                 goto cleanup;
 335         }
 336
 337         /* If we've got a glued backend, check the real backend */
 338         op_be = op->o_bd;
 339         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 340                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 341         }
 342
 343         /* check restrictions */
 344         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 345                 send_ldap_result( op, rs );
 346                 goto cleanup;
 347         }
 348
 349         /* check for referrals */
 350         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 351                 goto cleanup;
 352         }
 353
 354         {
 355                 rs->sr_err = slap_mods_obsolete_check( op, modlist,
 356                         &rs->sr_text, textbuf, textlen );
 357                 if ( rs->sr_err != LDAP_SUCCESS ) {
 358                         send_ldap_result( op, rs );
 359                         goto cleanup;
 360                 }
 361         }
 362
 363         /* check for modify/increment support */
 364         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 365                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 366                         "modify/increment not supported in context" );
 367         }
 368
 369 #if defined( LDAP_SLAPI )
 370 #define pb      op->o_pb
 371         if ( pb ) {
 372                 slapi_int_pblock_set_operation( pb, op );
 373                 slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)op->o_req_dn.bv_val );
 374                 slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 375                 modv = slapi_int_modifications2ldapmods( &modlist );
 376                 slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 377
 378                 rs->sr_err = slapi_int_call_plugins( op->o_bd,
 379                         SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 380
 381                 /*
 382                  * It's possible that the preoperation plugin changed the
 383                  * modification array, so we need to convert it back to
 384                  * a Modification list.
 385                  *
 386                  * Calling slapi_int_modifications2ldapmods() destroyed modlist so
 387                  * we don't need to free it.
 388                  */
 389                 slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 390                 modlist = slapi_int_ldapmods2modifications( modv );
 391
 392                 if ( rs->sr_err < 0 ) {
 393                         /*
 394                          * A preoperation plugin failure will abort the
 395                          * entire operation.
 396                          */
 397                         Debug(LDAP_DEBUG_TRACE,
 398                                 "do_modify: modify preoperation plugin failed.\n",
 399                                 0, 0, 0);
 400                         if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
 401                                 (void *)&rs->sr_err ) != 0 ) || rs->sr_err == LDAP_SUCCESS )
 402                         {
 403                                 rs->sr_err = LDAP_OTHER;
 404                         }
 405                         slapi_int_free_ldapmods( modv );
 406                         modv = NULL;
 407                         goto cleanup;
 408                 }
 409         }
 410
 411         /*
 412          * NB: it is valid for the plugin to return no modifications
 413          * (for example, a plugin might store some attributes elsewhere
 414          * and remove them from the modification list; if only those
 415          * attribute types were included in the modification request,
 416          * then slapi_int_ldapmods2modifications() above will return
 417          * NULL).
 418          *
 419          * However, the post-operation plugin should still be
 420          * called.
 421          */
 422 #endif /* defined( LDAP_SLAPI ) */
 423
 424         /*
 425          * do the modify if 1 && (2 || 3)
 426          * 1) there is a modify function implemented in this backend;
 427          * 2) this backend is master for what it holds;
 428          * 3) it's a replica and the dn supplied is the update_ndn.
 429          */
 430         if ( op->o_bd->be_modify ) {
 431                 /* do the update here */
 432                 int repl_user = be_isupdate( op );
 433
 434                 /* Multimaster slapd does not have to check for replicator dn
 435                  * because it accepts each modify request
 436                  */
 437 #ifndef SLAPD_MULTIMASTER
 438                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 439 #endif
 440                 {
 441                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 442                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 443
 444                         op->o_bd = op_be;
 445
 446                         if ( !update ) {
 447                                 rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
 448                                         &rs->sr_text, textbuf, textlen );
 449                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 450                                         send_ldap_result( op, rs );
 451                                         goto cleanup;
 452                                 }
 453                         }
 454
 455                         if ( !repl_user ) {
 456                                 for( modtail = &modlist;
 457                                         *modtail != NULL;
 458                                         modtail = &(*modtail)->sml_next )
 459                                 {
 460                                         /* empty */
 461                                 }
 462
 463                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 464                                         &rs->sr_text, textbuf, textlen, 1 );
 465                                 if( rs->sr_err != LDAP_SUCCESS ) {
 466                                         send_ldap_result( op, rs );
 467                                         goto cleanup;
 468                                 }
 469                         }
 470
 471                         op->orm_modlist = modlist;
 472 #ifdef SLAPD_MULTIMASTER
 473                         if ( !repl_user )
 474 #endif
 475                         {
 476                                 /* but multimaster slapd logs only the ones
 477                                  * not from a replicator user */
 478                                 cb.sc_next = op->o_callback;
 479                                 op->o_callback = &cb;
 480                         }
 481                         op->o_bd->be_modify( op, rs );
 482
 483 #ifndef SLAPD_MULTIMASTER
 484                 /* send a referral */
 485                 } else {
 486                         BerVarray defref = op->o_bd->be_update_refs
 487                                 ? op->o_bd->be_update_refs : default_referral;
 488                         if ( defref != NULL ) {
 489                                 rs->sr_ref = referral_rewrite( defref,
 490                                         NULL, &op->o_req_dn,
 491                                         LDAP_SCOPE_DEFAULT );
 492                                 if ( rs->sr_ref == NULL ) {
 493                                         /* FIXME: must duplicate, because
 494                                          * overlays may muck with it */
 495                                         rs->sr_ref = defref;
 496                                 }
 497                                 rs->sr_err = LDAP_REFERRAL;
 498                                 send_ldap_result( op, rs );
 499                                 if ( rs->sr_ref != defref ) {
 500                                         ber_bvarray_free( rs->sr_ref );
 501                                 }
 502
 503                         } else {
 504                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 505                                         "shadow context; no update referral" );
 506                         }
 507 #endif
 508                 }
 509         } else {
 510                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 511                     "operation not supported within namingContext" );
 512         }
 513
 514 #if defined( LDAP_SLAPI )
 515         if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
 516                 SLAPI_PLUGIN_POST_MODIFY_FN, pb ) < 0 )
 517         {
 518                 Debug(LDAP_DEBUG_TRACE,
 519                         "do_modify: modify postoperation plugins failed.\n", 0, 0, 0);
 520         }
 521 #endif /* defined( LDAP_SLAPI ) */
 522
 523 cleanup:;
 524 #if defined( LDAP_SLAPI )
 525         if ( modv != NULL ) slapi_int_free_ldapmods( modv );
 526 #endif
 527
 528         return rs->sr_err;
 529 }
 530
 531 /*
 532  * Obsolete constraint checking.
 533  */
 534 int
 535 slap_mods_obsolete_check(
 536         Operation *op,
 537         Modifications *ml,
 538         const char **text,
 539         char *textbuf,
 540         size_t textlen )
 541 {
 542         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 543
 544         for ( ; ml != NULL; ml = ml->sml_next ) {
 545                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 546                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 547                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 548                                         ml->sml_values != NULL ))
 549                 {
 550                         /*
 551                          * attribute is obsolete,
 552                          * only allow replace/delete with no values
 553                          */
 554                         snprintf( textbuf, textlen,
 555                                 "%s: attribute is obsolete",
 556                                 ml->sml_type.bv_val );
 557                         *text = textbuf;
 558                         return LDAP_CONSTRAINT_VIOLATION;
 559                 }
 560         }
 561
 562         return LDAP_SUCCESS;
 563 }
 564
 565 /*
 566  * No-user-modification constraint checking.
 567  */
 568 int
 569 slap_mods_no_user_mod_check(
 570         Operation *op,
 571         Modifications *ml,
 572         const char **text,
 573         char *textbuf,
 574         size_t textlen )
 575 {
 576         for ( ; ml != NULL; ml = ml->sml_next ) {
 577                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 578
 579                 if( get_manageDIT( op )) {
 580                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 581                                 continue;
 582                         }
 583
 584                         /* attribute not manageable */
 585                         snprintf( textbuf, textlen,
 586                                 "%s: no-user-modification attribute not manageable",
 587                                 ml->sml_type.bv_val );
 588
 589                 } else {
 590                         /* user modification disallowed */
 591                         snprintf( textbuf, textlen,
 592                                 "%s: no user modification allowed",
 593                                 ml->sml_type.bv_val );
 594                 }
 595
 596                 *text = textbuf;
 597                 return LDAP_CONSTRAINT_VIOLATION;
 598         }
 599
 600         return LDAP_SUCCESS;
 601 }
 602
 603 /*
 604  * Do basic attribute type checking and syntax validation.
 605  */
 606 int slap_mods_check(
 607         Modifications *ml,
 608         const char **text,
 609         char *textbuf,
 610         size_t textlen,
 611         void *ctx )
 612 {
 613         int rc;
 614
 615         for( ; ml != NULL; ml = ml->sml_next ) {
 616                 AttributeDescription *ad = NULL;
 617
 618                 /* convert to attribute description */
 619                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 620
 621                 if( rc != LDAP_SUCCESS ) {
 622                         snprintf( textbuf, textlen, "%s: %s",
 623                                 ml->sml_type.bv_val, *text );
 624                         *text = textbuf;
 625                         return rc;
 626                 }
 627
 628                 ad = ml->sml_desc;
 629
 630                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 631                         && !slap_ad_is_binary( ad ))
 632                 {
 633                         /* attribute requires binary transfer */
 634                         snprintf( textbuf, textlen,
 635                                 "%s: requires ;binary transfer",
 636                                 ml->sml_type.bv_val );
 637                         *text = textbuf;
 638                         return LDAP_UNDEFINED_TYPE;
 639                 }
 640
 641                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 642                         && slap_ad_is_binary( ad ))
 643                 {
 644                         /* attribute does not require binary transfer */
 645                         snprintf( textbuf, textlen,
 646                                 "%s: disallows ;binary transfer",
 647                                 ml->sml_type.bv_val );
 648                         *text = textbuf;
 649                         return LDAP_UNDEFINED_TYPE;
 650                 }
 651
 652                 if( slap_ad_is_tag_range( ad )) {
 653                         /* attribute requires binary transfer */
 654                         snprintf( textbuf, textlen,
 655                                 "%s: inappropriate use of tag range option",
 656                                 ml->sml_type.bv_val );
 657                         *text = textbuf;
 658                         return LDAP_UNDEFINED_TYPE;
 659                 }
 660
 661 #if 0
 662                 if ( is_at_obsolete( ad->ad_type ) &&
 663                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 664                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 665                                         ml->sml_values != NULL ))
 666                 {
 667                         /*
 668                          * attribute is obsolete,
 669                          * only allow replace/delete with no values
 670                          */
 671                         snprintf( textbuf, textlen,
 672                                 "%s: attribute is obsolete",
 673                                 ml->sml_type.bv_val );
 674                         *text = textbuf;
 675                         return LDAP_CONSTRAINT_VIOLATION;
 676                 }
 677 #endif
 678
 679                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 680 #ifdef SLAPD_REAL_SYNTAX
 681                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 682 #endif
 683                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 684                 {
 685                         /*
 686                          * attribute values must be INTEGER or REAL
 687                          */
 688                         snprintf( textbuf, textlen,
 689                                 "%s: attribute syntax inappropriate for increment",
 690                                 ml->sml_type.bv_val );
 691                         *text = textbuf;
 692                         return LDAP_CONSTRAINT_VIOLATION;
 693                 }
 694
 695                 /*
 696                  * check values
 697                  */
 698                 if( ml->sml_values != NULL ) {
 699                         ber_len_t nvals;
 700                         slap_syntax_validate_func *validate =
 701                                 ad->ad_type->sat_syntax->ssyn_validate;
 702                         slap_syntax_transform_func *pretty =
 703                                 ad->ad_type->sat_syntax->ssyn_pretty;
 704
 705                         if( !pretty && !validate ) {
 706                                 *text = "no validator for syntax";
 707                                 snprintf( textbuf, textlen,
 708                                         "%s: no validator for syntax %s",
 709                                         ml->sml_type.bv_val,
 710                                         ad->ad_type->sat_syntax->ssyn_oid );
 711                                 *text = textbuf;
 712                                 return LDAP_INVALID_SYNTAX;
 713                         }
 714
 715                         /*
 716                          * check that each value is valid per syntax
 717                          *      and pretty if appropriate
 718                          */
 719                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 720                                 struct berval pval;
 721                                 if( pretty ) {
 722                                         rc = pretty( ad->ad_type->sat_syntax,
 723                                                 &ml->sml_values[nvals], &pval, ctx );
 724                                 } else {
 725                                         rc = validate( ad->ad_type->sat_syntax,
 726                                                 &ml->sml_values[nvals] );
 727                                 }
 728
 729                                 if( rc != 0 ) {
 730                                         snprintf( textbuf, textlen,
 731                                                 "%s: value #%ld invalid per syntax",
 732                                                 ml->sml_type.bv_val, (long) nvals );
 733                                         *text = textbuf;
 734                                         return LDAP_INVALID_SYNTAX;
 735                                 }
 736
 737                                 if( pretty ) {
 738                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 739                                         ml->sml_values[nvals] = pval;
 740                                 }
 741                         }
 742
 743                         /*
 744                          * a rough single value check... an additional check is needed
 745                          * to catch add of single value to existing single valued attribute
 746                          */
 747                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 748                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 749                         {
 750                                 snprintf( textbuf, textlen,
 751                                         "%s: multiple values provided",
 752                                         ml->sml_type.bv_val );
 753                                 *text = textbuf;
 754                                 return LDAP_CONSTRAINT_VIOLATION;
 755                         }
 756
 757                         /* if the type has a normalizer, generate the
 758                          * normalized values. otherwise leave them NULL.
 759                          *
 760                          * this is different from the rule for attributes
 761                          * in an entry - in an attribute list, the normalized
 762                          * value is set equal to the non-normalized value
 763                          * when there is no normalizer.
 764                          */
 765                         if( nvals && ad->ad_type->sat_equality &&
 766                                 ad->ad_type->sat_equality->smr_normalize )
 767                         {
 768                                 ml->sml_nvalues = ber_memalloc_x(
 769                                         (nvals+1)*sizeof(struct berval), ctx );
 770
 771                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 772                                         rc = ad->ad_type->sat_equality->smr_normalize(
 773                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 774                                                 ad->ad_type->sat_syntax,
 775                                                 ad->ad_type->sat_equality,
 776                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 777                                         if( rc ) {
 778                                                 Debug( LDAP_DEBUG_ANY,
 779                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 780                                                         rc, 0, 0 );
 781                                                 snprintf( textbuf, textlen,
 782                                                         "%s: value #%ld normalization failed",
 783                                                         ml->sml_type.bv_val, (long) nvals );
 784                                                 *text = textbuf;
 785                                                 return rc;
 786                                         }
 787                                 }
 788
 789                                 ml->sml_nvalues[nvals].bv_val = NULL;
 790                                 ml->sml_nvalues[nvals].bv_len = 0;
 791                         }
 792
 793                         /* check for duplicates, but ignore Deletes.
 794                          */
 795                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 796                                 int             i, j, rc, match;
 797                                 MatchingRule *mr = ad->ad_type->sat_equality;
 798
 799                                 for ( i = 1; i < nvals ; i++ ) {
 800                                         /* test asserted values against themselves */
 801                                         for( j = 0; j < i; j++ ) {
 802                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 803                                                         SLAP_MR_EQUALITY
 804                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 805                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 806                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 807                                                         ml->sml_nvalues
 808                                                                 ? &ml->sml_nvalues[i]
 809                                                                 : &ml->sml_values[i],
 810                                                         ml->sml_nvalues
 811                                                                 ? &ml->sml_nvalues[j]
 812                                                                 : &ml->sml_values[j],
 813                                                         text );
 814                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 815                                                         /* value exists already */
 816                                                         snprintf( textbuf, textlen,
 817                                                                 "%s: value #%d provided more than once",
 818                                                                 ml->sml_desc->ad_cname.bv_val, j );
 819                                                         *text = textbuf;
 820                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 821
 822                                                 } else if ( rc != LDAP_SUCCESS ) {
 823                                                         return rc;
 824                                                 }
 825                                         }
 826                                 }
 827                         }
 828
 829                 }
 830         }
 831
 832         return LDAP_SUCCESS;
 833 }
 834
 835 /* Enter with bv->bv_len = sizeof buffer, returns with
 836  * actual length of string
 837  */
 838 void slap_timestamp( time_t *tm, struct berval *bv )
 839 {
 840         struct tm *ltm;
 841 #ifdef HAVE_GMTIME_R
 842         struct tm ltm_buf;
 843
 844         ltm = gmtime_r( tm, &ltm_buf );
 845 #else
 846         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 847         ltm = gmtime( tm );
 848 #endif
 849
 850         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 851
 852 #ifndef HAVE_GMTIME_R
 853         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 854 #endif
 855 }
 856
 857 int slap_mods_opattrs(
 858         Operation *op,
 859         Modifications *mods,
 860         Modifications **modtail,
 861         const char **text,
 862         char *textbuf, size_t textlen,
 863         int manage_ctxcsn )
 864 {
 865         struct berval name, timestamp, csn;
 866         struct berval nname;
 867         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 868         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 869         Modifications *mod;
 870
 871         int mop = op->o_tag == LDAP_REQ_ADD
 872                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 873
 874         assert( modtail != NULL );
 875         assert( *modtail == NULL );
 876
 877         if ( SLAP_LASTMOD( op->o_bd )) {
 878                 time_t now = slap_get_time();
 879
 880                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 881
 882                 timestamp.bv_val = timebuf;
 883                 timestamp.bv_len = sizeof(timebuf);
 884
 885                 slap_timestamp( &now, &timestamp );
 886
 887                 if( op->o_dn.bv_len == 0 ) {
 888                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 889                         nname = name;
 890                 } else {
 891                         name = op->o_dn;
 892                         nname = op->o_ndn;
 893                 }
 894         }
 895
 896         if( op->o_tag == LDAP_REQ_ADD ) {
 897                 struct berval tmpval;
 898
 899                 {
 900                         int rc = mods_structural_class( mods, &tmpval,
 901                                 text, textbuf, textlen );
 902                         if( rc != LDAP_SUCCESS ) return rc;
 903
 904                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 905                         mod->sml_op = mop;
 906                         mod->sml_flags = SLAP_MOD_INTERNAL;
 907                         mod->sml_type.bv_val = NULL;
 908                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 909                         mod->sml_values =
 910                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 911                         ber_dupbv( &mod->sml_values[0], &tmpval );
 912                         mod->sml_values[1].bv_len = 0;
 913                         mod->sml_values[1].bv_val = NULL;
 914                         assert( mod->sml_values[0].bv_val );
 915                         mod->sml_nvalues =
 916                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 917                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 918                         mod->sml_nvalues[1].bv_len = 0;
 919                         mod->sml_nvalues[1].bv_val = NULL;
 920                         assert( mod->sml_nvalues[0].bv_val );
 921                         *modtail = mod;
 922                         modtail = &mod->sml_next;
 923                 }
 924
 925                 if ( SLAP_LASTMOD( op->o_bd )) {
 926                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 927
 928                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 929                         tmpval.bv_val = uuidbuf;
 930
 931                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 932                         mod->sml_op = mop;
 933                         mod->sml_flags = SLAP_MOD_INTERNAL;
 934                         mod->sml_type.bv_val = NULL;
 935                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 936                         mod->sml_values =
 937                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 938                         ber_dupbv( &mod->sml_values[0], &tmpval );
 939                         mod->sml_values[1].bv_len = 0;
 940                         mod->sml_values[1].bv_val = NULL;
 941                         assert( mod->sml_values[0].bv_val );
 942                         mod->sml_nvalues =
 943                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 944                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 945                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 946                                         mod->sml_desc->ad_type->sat_syntax,
 947                                         mod->sml_desc->ad_type->sat_equality,
 948                                         mod->sml_values, mod->sml_nvalues, NULL );
 949                         mod->sml_nvalues[1].bv_len = 0;
 950                         mod->sml_nvalues[1].bv_val = NULL;
 951                         *modtail = mod;
 952                         modtail = &mod->sml_next;
 953
 954                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 955                         mod->sml_op = mop;
 956                         mod->sml_flags = SLAP_MOD_INTERNAL;
 957                         mod->sml_type.bv_val = NULL;
 958                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 959                         mod->sml_values =
 960                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 961                         ber_dupbv( &mod->sml_values[0], &name );
 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 =
 966                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 967                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 968                         mod->sml_nvalues[1].bv_len = 0;
 969                         mod->sml_nvalues[1].bv_val = NULL;
 970                         assert( mod->sml_nvalues[0].bv_val );
 971                         *modtail = mod;
 972                         modtail = &mod->sml_next;
 973
 974                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 975                         mod->sml_op = mop;
 976                         mod->sml_flags = SLAP_MOD_INTERNAL;
 977                         mod->sml_type.bv_val = NULL;
 978                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 979                         mod->sml_values =
 980                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 981                         ber_dupbv( &mod->sml_values[0], &timestamp );
 982                         mod->sml_values[1].bv_len = 0;
 983                         mod->sml_values[1].bv_val = NULL;
 984                         assert( mod->sml_values[0].bv_val );
 985                         mod->sml_nvalues = NULL;
 986                         *modtail = mod;
 987                         modtail = &mod->sml_next;
 988                 }
 989         }
 990
 991         if ( SLAP_LASTMOD( op->o_bd )) {
 992                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 993                 mod->sml_op = mop;
 994                 mod->sml_flags = SLAP_MOD_INTERNAL;
 995                 mod->sml_type.bv_val = NULL;
 996                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 997                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 998                 ber_dupbv( &mod->sml_values[0], &csn );
 999                 mod->sml_values[1].bv_len = 0;
1000                 mod->sml_values[1].bv_val = NULL;
1001                 assert( mod->sml_values[0].bv_val );
1002                 mod->sml_nvalues = NULL;
1003                 *modtail = mod;
1004                 modtail = &mod->sml_next;
1005
1006                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1007                 mod->sml_op = mop;
1008                 mod->sml_flags = SLAP_MOD_INTERNAL;
1009                 mod->sml_type.bv_val = NULL;
1010                 mod->sml_desc = slap_schema.si_ad_modifiersName;
1011                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1012                 ber_dupbv( &mod->sml_values[0], &name );
1013                 mod->sml_values[1].bv_len = 0;
1014                 mod->sml_values[1].bv_val = NULL;
1015                 assert( mod->sml_values[0].bv_val );
1016                 mod->sml_nvalues =
1017                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1018                 ber_dupbv( &mod->sml_nvalues[0], &nname );
1019                 mod->sml_nvalues[1].bv_len = 0;
1020                 mod->sml_nvalues[1].bv_val = NULL;
1021                 assert( mod->sml_nvalues[0].bv_val );
1022                 *modtail = mod;
1023                 modtail = &mod->sml_next;
1024
1025                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1026                 mod->sml_op = mop;
1027                 mod->sml_flags = SLAP_MOD_INTERNAL;
1028                 mod->sml_type.bv_val = NULL;
1029                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
1030                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1031                 ber_dupbv( &mod->sml_values[0], &timestamp );
1032                 mod->sml_values[1].bv_len = 0;
1033                 mod->sml_values[1].bv_val = NULL;
1034                 assert( mod->sml_values[0].bv_val );
1035                 mod->sml_nvalues = NULL;
1036                 *modtail = mod;
1037                 modtail = &mod->sml_next;
1038         }
1039
1040         *modtail = NULL;
1041         return LDAP_SUCCESS;
1042 }
1043