git.sur5r.net Git - openldap/blob - servers/slapd/modify.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  16  * All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms are permitted
  19  * provided that this notice is preserved and that due credit is given
  20  * to the University of Michigan at Ann Arbor. The name of the University
  21  * may not be used to endorse or promote products derived from this
  22  * software without specific prior written permission. This software
  23  * is provided ``as is'' without express or implied warranty.
  24  */
  25
  26 #include "portable.h"
  27
  28 #include <stdio.h>
  29
  30 #include <ac/socket.h>
  31 #include <ac/string.h>
  32 #include <ac/time.h>
  33
  34 #include "slap.h"
  35 #include "lutil.h"
  36
  37
  38 int
  39 do_modify(
  40     Operation   *op,
  41     SlapReply   *rs )
  42 {
  43         struct berval dn = BER_BVNULL;
  44         char            *last;
  45         ber_tag_t       tag;
  46         ber_len_t       len;
  47         Modifications   *modlist = NULL;
  48         Modifications   **modtail = &modlist;
  49         int             increment = 0;
  50         char            textbuf[ SLAP_TEXT_BUFLEN ];
  51         size_t          textlen = sizeof( textbuf );
  52
  53         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  54
  55         /*
  56          * Parse the modify request.  It looks like this:
  57          *
  58          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  59          *              name    DistinguishedName,
  60          *              mods    SEQUENCE OF SEQUENCE {
  61          *                      operation       ENUMERATED {
  62          *                              add     (0),
  63          *                              delete  (1),
  64          *                              replace (2)
  65          *                      },
  66          *                      modification    SEQUENCE {
  67          *                              type    AttributeType,
  68          *                              values  SET OF AttributeValue
  69          *                      }
  70          *              }
  71          *      }
  72          */
  73
  74         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  75                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  76
  77                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  78                 return SLAPD_DISCONNECT;
  79         }
  80
  81         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  82
  83         /* collect modifications & save for later */
  84         for ( tag = ber_first_element( op->o_ber, &len, &last );
  85             tag != LBER_DEFAULT;
  86             tag = ber_next_element( op->o_ber, &len, last ) )
  87         {
  88                 ber_int_t mop;
  89                 Modifications tmp, *mod;
  90
  91                 tmp.sml_nvalues = NULL;
  92
  93                 if ( ber_scanf( op->o_ber, "{e{m[W]}}", &mop,
  94                     &tmp.sml_type, &tmp.sml_values ) == LBER_ERROR )
  95                 {
  96                         send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR,
  97                                 "decoding modlist error" );
  98                         rs->sr_err = SLAPD_DISCONNECT;
  99                         goto cleanup;
 100                 }
 101
 102                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 103                 mod->sml_op = mop;
 104                 mod->sml_flags = 0;
 105                 mod->sml_type = tmp.sml_type;
 106                 mod->sml_values = tmp.sml_values;
 107                 mod->sml_nvalues = NULL;
 108                 mod->sml_desc = NULL;
 109                 mod->sml_next = NULL;
 110                 *modtail = mod;
 111
 112                 switch( mop ) {
 113                 case LDAP_MOD_ADD:
 114                         if ( mod->sml_values == NULL ) {
 115                                 Debug( LDAP_DEBUG_ANY,
 116                                         "do_modify: modify/add operation (%ld) requires values\n",
 117                                         (long) mop, 0, 0 );
 118
 119                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 120                                         "modify/add operation requires values" );
 121                                 goto cleanup;
 122                         }
 123
 124                         /* fall through */
 125
 126                 case LDAP_MOD_DELETE:
 127                 case LDAP_MOD_REPLACE:
 128                         break;
 129
 130                 case LDAP_MOD_INCREMENT:
 131                         if( op->o_protocol >= LDAP_VERSION3 ) {
 132                                 increment++;
 133                                 if ( mod->sml_values == NULL ) {
 134                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 135                                                 "modify/increment operation (%ld) requires value\n",
 136                                                 (long) mop, 0, 0 );
 137
 138                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 139                                                 "modify/increment operation requires value" );
 140                                         goto cleanup;
 141                                 }
 142
 143                                 if( mod->sml_values[1].bv_val ) {
 144                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 145                                                 "operation (%ld) requires single value\n",
 146                                                 (long) mop, 0, 0 );
 147
 148                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 149                                                 "modify/increment operation requires single value" );
 150                                         goto cleanup;
 151                                 }
 152
 153                                 break;
 154                         }
 155                         /* fall thru */
 156
 157                 default: {
 158                                 Debug( LDAP_DEBUG_ANY,
 159                                         "do_modify: unrecognized modify operation (%ld)\n",
 160                                         (long) mop, 0, 0 );
 161
 162                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 163                                         "unrecognized modify operation" );
 164                                 goto cleanup;
 165                         }
 166                 }
 167
 168                 modtail = &mod->sml_next;
 169         }
 170         *modtail = NULL;
 171
 172         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 173                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 174
 175                 goto cleanup;
 176         }
 177
 178         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 179                 op->o_tmpmemctx );
 180         if( rs->sr_err != LDAP_SUCCESS ) {
 181                 Debug( LDAP_DEBUG_ANY,
 182                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 183                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 184                 goto cleanup;
 185         }
 186
 187         rs->sr_err = slap_mods_check( modlist, &rs->sr_text,
 188                 textbuf, textlen, NULL );
 189
 190         if ( rs->sr_err != LDAP_SUCCESS ) {
 191                 send_ldap_result( op, rs );
 192                 goto cleanup;
 193         }
 194
 195         /* FIXME: needs review */
 196         op->orm_modlist = modlist;
 197         op->orm_increment = increment;
 198
 199         op->o_bd = frontendDB;
 200         rs->sr_err = frontendDB->be_modify( op, rs );
 201
 202 cleanup:
 203         slap_graduate_commit_csn( op );
 204
 205         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 206         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 207         if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist, 1 );
 208
 209         return rs->sr_err;
 210 }
 211
 212 int
 213 fe_op_modify( Operation *op, SlapReply *rs )
 214 {
 215 #ifdef LDAP_DEBUG
 216         Modifications   *tmp;
 217 #endif
 218         int             manageDSAit;
 219         Modifications   *modlist = op->orm_modlist;
 220         Modifications   **modtail = &modlist;
 221         int             increment = op->orm_increment;
 222         BackendDB *op_be;
 223         char            textbuf[ SLAP_TEXT_BUFLEN ];
 224         size_t          textlen = sizeof( textbuf );
 225
 226         if( op->o_req_ndn.bv_len == 0 ) {
 227                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 228
 229                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 230                         "modify upon the root DSE not supported" );
 231                 goto cleanup;
 232
 233         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 234                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 235
 236                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 237                         "modification of subschema subentry not supported" );
 238                 goto cleanup;
 239         }
 240
 241 #ifdef LDAP_DEBUG
 242         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 243
 244         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 245                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 246                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 247                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 248                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 249                                         "replace")), tmp->sml_type.bv_val, 0 );
 250
 251                 if ( tmp->sml_values == NULL ) {
 252                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 253                            "\t\tno values", NULL, NULL );
 254                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 255                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 256                            "\t\tzero values", NULL, NULL );
 257                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 258                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 259                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 260                 } else {
 261                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 262                            "\t\tmultiple values", NULL, NULL );
 263                 }
 264         }
 265
 266         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 267                 char abuf[BUFSIZ/2], *ptr = abuf;
 268                 int len = 0;
 269
 270                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 271                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 272
 273                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 274                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 275                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 276                                     op->o_log_prefix, abuf, 0, 0, 0 );
 277
 278                                 len = 0;
 279                                 ptr = abuf;
 280
 281                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 282                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 283                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 284                                         continue;
 285                                 }
 286                         }
 287                         if (len) {
 288                                 *ptr++ = ' ';
 289                                 len++;
 290                         }
 291                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 292                         len += tmp->sml_type.bv_len;
 293                 }
 294                 if (len) {
 295                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 296                                 op->o_log_prefix, abuf, 0, 0, 0 );
 297                 }
 298         }
 299 #endif  /* LDAP_DEBUG */
 300
 301         manageDSAit = get_manageDSAit( op );
 302
 303         /*
 304          * We could be serving multiple database backends.  Select the
 305          * appropriate one, or send a referral to our "referral server"
 306          * if we don't hold it.
 307          */
 308         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 309         if ( op->o_bd == NULL ) {
 310                 rs->sr_ref = referral_rewrite( default_referral,
 311                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 312                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 313
 314                 if (rs->sr_ref != NULL ) {
 315                         rs->sr_err = LDAP_REFERRAL;
 316                         op->o_bd = frontendDB;
 317                         send_ldap_result( op, rs );
 318                         op->o_bd = NULL;
 319
 320                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 321                 } else {
 322                         op->o_bd = frontendDB;
 323                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 324                                 "no global superior knowledge" );
 325                         op->o_bd = NULL;
 326                 }
 327                 goto cleanup;
 328         }
 329
 330         /* If we've got a glued backend, check the real backend */
 331         op_be = op->o_bd;
 332         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 333                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 334         }
 335
 336         /* check restrictions */
 337         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 338                 send_ldap_result( op, rs );
 339                 goto cleanup;
 340         }
 341
 342         /* check for referrals */
 343         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 344                 goto cleanup;
 345         }
 346
 347         rs->sr_err = slap_mods_obsolete_check( op, modlist,
 348                 &rs->sr_text, textbuf, textlen );
 349         if ( rs->sr_err != LDAP_SUCCESS ) {
 350                 send_ldap_result( op, rs );
 351                 goto cleanup;
 352         }
 353
 354         /* check for modify/increment support */
 355         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 356                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 357                         "modify/increment not supported in context" );
 358         }
 359
 360         /*
 361          * do the modify if 1 && (2 || 3)
 362          * 1) there is a modify function implemented in this backend;
 363          * 2) this backend is master for what it holds;
 364          * 3) it's a replica and the dn supplied is the update_ndn.
 365          */
 366         if ( op->o_bd->be_modify ) {
 367                 /* do the update here */
 368                 int repl_user = be_isupdate( op );
 369
 370                 /* Multimaster slapd does not have to check for replicator dn
 371                  * because it accepts each modify request
 372                  */
 373 #ifndef SLAPD_MULTIMASTER
 374                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 375 #endif
 376                 {
 377                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 378                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 379
 380                         op->o_bd = op_be;
 381
 382                         if ( !update ) {
 383                                 rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
 384                                         &rs->sr_text, textbuf, textlen );
 385                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 386                                         send_ldap_result( op, rs );
 387                                         goto cleanup;
 388                                 }
 389                         }
 390
 391                         if ( !repl_user ) {
 392                                 for( modtail = &modlist;
 393                                         *modtail != NULL;
 394                                         modtail = &(*modtail)->sml_next )
 395                                 {
 396                                         /* empty */
 397                                 }
 398
 399                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 400                                         &rs->sr_text, textbuf, textlen, 1 );
 401                                 if( rs->sr_err != LDAP_SUCCESS ) {
 402                                         send_ldap_result( op, rs );
 403                                         goto cleanup;
 404                                 }
 405                         }
 406
 407                         op->orm_modlist = modlist;
 408 #ifdef SLAPD_MULTIMASTER
 409                         if ( !repl_user )
 410 #endif
 411                         {
 412                                 /* but multimaster slapd logs only the ones
 413                                  * not from a replicator user */
 414                                 cb.sc_next = op->o_callback;
 415                                 op->o_callback = &cb;
 416                         }
 417                         op->o_bd->be_modify( op, rs );
 418
 419 #ifndef SLAPD_MULTIMASTER
 420                 /* send a referral */
 421                 } else {
 422                         BerVarray defref = op->o_bd->be_update_refs
 423                                 ? op->o_bd->be_update_refs : default_referral;
 424                         if ( defref != NULL ) {
 425                                 rs->sr_ref = referral_rewrite( defref,
 426                                         NULL, &op->o_req_dn,
 427                                         LDAP_SCOPE_DEFAULT );
 428                                 if ( rs->sr_ref == NULL ) {
 429                                         /* FIXME: must duplicate, because
 430                                          * overlays may muck with it */
 431                                         rs->sr_ref = defref;
 432                                 }
 433                                 rs->sr_err = LDAP_REFERRAL;
 434                                 send_ldap_result( op, rs );
 435                                 if ( rs->sr_ref != defref ) {
 436                                         ber_bvarray_free( rs->sr_ref );
 437                                 }
 438
 439                         } else {
 440                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 441                                         "shadow context; no update referral" );
 442                         }
 443 #endif
 444                 }
 445         } else {
 446                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 447                     "operation not supported within namingContext" );
 448         }
 449
 450 cleanup:;
 451         return rs->sr_err;
 452 }
 453
 454 /*
 455  * Obsolete constraint checking.
 456  */
 457 int
 458 slap_mods_obsolete_check(
 459         Operation *op,
 460         Modifications *ml,
 461         const char **text,
 462         char *textbuf,
 463         size_t textlen )
 464 {
 465         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 466
 467         for ( ; ml != NULL; ml = ml->sml_next ) {
 468                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 469                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 470                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 471                                         ml->sml_values != NULL ))
 472                 {
 473                         /*
 474                          * attribute is obsolete,
 475                          * only allow replace/delete with no values
 476                          */
 477                         snprintf( textbuf, textlen,
 478                                 "%s: attribute is obsolete",
 479                                 ml->sml_type.bv_val );
 480                         *text = textbuf;
 481                         return LDAP_CONSTRAINT_VIOLATION;
 482                 }
 483         }
 484
 485         return LDAP_SUCCESS;
 486 }
 487
 488 /*
 489  * No-user-modification constraint checking.
 490  */
 491 int
 492 slap_mods_no_user_mod_check(
 493         Operation *op,
 494         Modifications *ml,
 495         const char **text,
 496         char *textbuf,
 497         size_t textlen )
 498 {
 499         for ( ; ml != NULL; ml = ml->sml_next ) {
 500                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 501
 502                 if( get_manageDIT( op )) {
 503                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 504                                 continue;
 505                         }
 506
 507                         /* attribute not manageable */
 508                         snprintf( textbuf, textlen,
 509                                 "%s: no-user-modification attribute not manageable",
 510                                 ml->sml_type.bv_val );
 511
 512                 } else {
 513                         /* user modification disallowed */
 514                         snprintf( textbuf, textlen,
 515                                 "%s: no user modification allowed",
 516                                 ml->sml_type.bv_val );
 517                 }
 518
 519                 *text = textbuf;
 520                 return LDAP_CONSTRAINT_VIOLATION;
 521         }
 522
 523         return LDAP_SUCCESS;
 524 }
 525
 526 int
 527 slap_mods_no_repl_user_mod_check(
 528         Operation *op,
 529         Modifications *ml,
 530         const char **text,
 531         char *textbuf,
 532         size_t textlen )
 533 {
 534         Modifications *mods;
 535         Modifications *modp;
 536
 537         for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
 538                 assert( mods->sml_op == LDAP_MOD_ADD );
 539
 540                 /* check doesn't already appear */
 541                 for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
 542                         if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
 543                                 snprintf( textbuf, textlen,
 544                                         "attribute '%s' provided more than once",
 545                                         mods->sml_desc->ad_cname.bv_val );
 546                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 547                         }
 548                 }
 549         }
 550
 551         return LDAP_SUCCESS;
 552 }
 553
 554 /*
 555  * Do basic attribute type checking and syntax validation.
 556  */
 557 int slap_mods_check(
 558         Modifications *ml,
 559         const char **text,
 560         char *textbuf,
 561         size_t textlen,
 562         void *ctx )
 563 {
 564         int rc;
 565
 566         for( ; ml != NULL; ml = ml->sml_next ) {
 567                 AttributeDescription *ad = NULL;
 568
 569                 /* convert to attribute description */
 570                 if ( ml->sml_desc == NULL ) {
 571                         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 572                         if( rc != LDAP_SUCCESS ) {
 573                                 snprintf( textbuf, textlen, "%s: %s",
 574                                         ml->sml_type.bv_val, *text );
 575                                 *text = textbuf;
 576                                 return rc;
 577                         }
 578                 }
 579
 580                 ad = ml->sml_desc;
 581
 582                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 583                         && !slap_ad_is_binary( ad ))
 584                 {
 585                         /* attribute requires binary transfer */
 586                         snprintf( textbuf, textlen,
 587                                 "%s: requires ;binary transfer",
 588                                 ml->sml_type.bv_val );
 589                         *text = textbuf;
 590                         return LDAP_UNDEFINED_TYPE;
 591                 }
 592
 593                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 594                         && slap_ad_is_binary( ad ))
 595                 {
 596                         /* attribute does not require binary transfer */
 597                         snprintf( textbuf, textlen,
 598                                 "%s: disallows ;binary transfer",
 599                                 ml->sml_type.bv_val );
 600                         *text = textbuf;
 601                         return LDAP_UNDEFINED_TYPE;
 602                 }
 603
 604                 if( slap_ad_is_tag_range( ad )) {
 605                         /* attribute requires binary transfer */
 606                         snprintf( textbuf, textlen,
 607                                 "%s: inappropriate use of tag range option",
 608                                 ml->sml_type.bv_val );
 609                         *text = textbuf;
 610                         return LDAP_UNDEFINED_TYPE;
 611                 }
 612
 613 #if 0
 614                 if ( is_at_obsolete( ad->ad_type ) &&
 615                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 616                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 617                                         ml->sml_values != NULL ))
 618                 {
 619                         /*
 620                          * attribute is obsolete,
 621                          * only allow replace/delete with no values
 622                          */
 623                         snprintf( textbuf, textlen,
 624                                 "%s: attribute is obsolete",
 625                                 ml->sml_type.bv_val );
 626                         *text = textbuf;
 627                         return LDAP_CONSTRAINT_VIOLATION;
 628                 }
 629 #endif
 630
 631                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 632 #ifdef SLAPD_REAL_SYNTAX
 633                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 634 #endif
 635                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 636                 {
 637                         /*
 638                          * attribute values must be INTEGER or REAL
 639                          */
 640                         snprintf( textbuf, textlen,
 641                                 "%s: attribute syntax inappropriate for increment",
 642                                 ml->sml_type.bv_val );
 643                         *text = textbuf;
 644                         return LDAP_CONSTRAINT_VIOLATION;
 645                 }
 646
 647                 /*
 648                  * check values
 649                  */
 650                 if( ml->sml_values != NULL ) {
 651                         ber_len_t nvals;
 652                         slap_syntax_validate_func *validate =
 653                                 ad->ad_type->sat_syntax->ssyn_validate;
 654                         slap_syntax_transform_func *pretty =
 655                                 ad->ad_type->sat_syntax->ssyn_pretty;
 656
 657                         if( !pretty && !validate ) {
 658                                 *text = "no validator for syntax";
 659                                 snprintf( textbuf, textlen,
 660                                         "%s: no validator for syntax %s",
 661                                         ml->sml_type.bv_val,
 662                                         ad->ad_type->sat_syntax->ssyn_oid );
 663                                 *text = textbuf;
 664                                 return LDAP_INVALID_SYNTAX;
 665                         }
 666
 667                         /*
 668                          * check that each value is valid per syntax
 669                          *      and pretty if appropriate
 670                          */
 671                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 672                                 struct berval pval;
 673                                 if( pretty ) {
 674                                         rc = pretty( ad->ad_type->sat_syntax,
 675                                                 &ml->sml_values[nvals], &pval, ctx );
 676                                 } else {
 677                                         rc = validate( ad->ad_type->sat_syntax,
 678                                                 &ml->sml_values[nvals] );
 679                                 }
 680
 681                                 if( rc != 0 ) {
 682                                         snprintf( textbuf, textlen,
 683                                                 "%s: value #%ld invalid per syntax",
 684                                                 ml->sml_type.bv_val, (long) nvals );
 685                                         *text = textbuf;
 686                                         return LDAP_INVALID_SYNTAX;
 687                                 }
 688
 689                                 if( pretty ) {
 690                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 691                                         ml->sml_values[nvals] = pval;
 692                                 }
 693                         }
 694
 695                         /*
 696                          * a rough single value check... an additional check is needed
 697                          * to catch add of single value to existing single valued attribute
 698                          */
 699                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 700                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 701                         {
 702                                 snprintf( textbuf, textlen,
 703                                         "%s: multiple values provided",
 704                                         ml->sml_type.bv_val );
 705                                 *text = textbuf;
 706                                 return LDAP_CONSTRAINT_VIOLATION;
 707                         }
 708
 709                         /* if the type has a normalizer, generate the
 710                          * normalized values. otherwise leave them NULL.
 711                          *
 712                          * this is different from the rule for attributes
 713                          * in an entry - in an attribute list, the normalized
 714                          * value is set equal to the non-normalized value
 715                          * when there is no normalizer.
 716                          */
 717                         if( nvals && ad->ad_type->sat_equality &&
 718                                 ad->ad_type->sat_equality->smr_normalize )
 719                         {
 720                                 ml->sml_nvalues = ber_memalloc_x(
 721                                         (nvals+1)*sizeof(struct berval), ctx );
 722
 723                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 724                                         rc = ad->ad_type->sat_equality->smr_normalize(
 725                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 726                                                 ad->ad_type->sat_syntax,
 727                                                 ad->ad_type->sat_equality,
 728                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 729                                         if( rc ) {
 730                                                 Debug( LDAP_DEBUG_ANY,
 731                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 732                                                         rc, 0, 0 );
 733                                                 snprintf( textbuf, textlen,
 734                                                         "%s: value #%ld normalization failed",
 735                                                         ml->sml_type.bv_val, (long) nvals );
 736                                                 *text = textbuf;
 737                                                 return rc;
 738                                         }
 739                                 }
 740
 741                                 ml->sml_nvalues[nvals].bv_val = NULL;
 742                                 ml->sml_nvalues[nvals].bv_len = 0;
 743                         }
 744
 745                         /* check for duplicates, but ignore Deletes.
 746                          */
 747                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 748                                 int             i, j, rc, match;
 749                                 MatchingRule *mr = ad->ad_type->sat_equality;
 750
 751                                 for ( i = 1; i < nvals ; i++ ) {
 752                                         /* test asserted values against themselves */
 753                                         for( j = 0; j < i; j++ ) {
 754                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 755                                                         SLAP_MR_EQUALITY
 756                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 757                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 758                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 759                                                         ml->sml_nvalues
 760                                                                 ? &ml->sml_nvalues[i]
 761                                                                 : &ml->sml_values[i],
 762                                                         ml->sml_nvalues
 763                                                                 ? &ml->sml_nvalues[j]
 764                                                                 : &ml->sml_values[j],
 765                                                         text );
 766                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 767                                                         /* value exists already */
 768                                                         snprintf( textbuf, textlen,
 769                                                                 "%s: value #%d provided more than once",
 770                                                                 ml->sml_desc->ad_cname.bv_val, j );
 771                                                         *text = textbuf;
 772                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 773
 774                                                 } else if ( rc != LDAP_SUCCESS ) {
 775                                                         return rc;
 776                                                 }
 777                                         }
 778                                 }
 779                         }
 780
 781                 }
 782         }
 783
 784         return LDAP_SUCCESS;
 785 }
 786
 787 /* Enter with bv->bv_len = sizeof buffer, returns with
 788  * actual length of string
 789  */
 790 void slap_timestamp( time_t *tm, struct berval *bv )
 791 {
 792         struct tm *ltm;
 793 #ifdef HAVE_GMTIME_R
 794         struct tm ltm_buf;
 795
 796         ltm = gmtime_r( tm, &ltm_buf );
 797 #else
 798         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 799         ltm = gmtime( tm );
 800 #endif
 801
 802         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 803
 804 #ifndef HAVE_GMTIME_R
 805         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 806 #endif
 807 }
 808
 809 int slap_mods_opattrs(
 810         Operation *op,
 811         Modifications *mods,
 812         Modifications **modtail,
 813         const char **text,
 814         char *textbuf, size_t textlen,
 815         int manage_ctxcsn )
 816 {
 817         struct berval name, timestamp, csn;
 818         struct berval nname;
 819         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 820         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 821         Modifications *mod;
 822
 823         int mop = op->o_tag == LDAP_REQ_ADD
 824                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 825
 826         assert( modtail != NULL );
 827         assert( *modtail == NULL );
 828
 829         if ( SLAP_LASTMOD( op->o_bd )) {
 830                 time_t now = slap_get_time();
 831
 832                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 833
 834                 timestamp.bv_val = timebuf;
 835                 timestamp.bv_len = sizeof(timebuf);
 836
 837                 slap_timestamp( &now, &timestamp );
 838
 839                 if( op->o_dn.bv_len == 0 ) {
 840                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 841                         nname = name;
 842                 } else {
 843                         name = op->o_dn;
 844                         nname = op->o_ndn;
 845                 }
 846         }
 847
 848         if( op->o_tag == LDAP_REQ_ADD ) {
 849                 struct berval tmpval;
 850
 851                 {
 852                         int rc = mods_structural_class( mods, &tmpval,
 853                                 text, textbuf, textlen );
 854                         if( rc != LDAP_SUCCESS ) return rc;
 855
 856                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 857                         mod->sml_op = mop;
 858                         mod->sml_flags = SLAP_MOD_INTERNAL;
 859                         mod->sml_type.bv_val = NULL;
 860                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 861                         mod->sml_values =
 862                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 863                         ber_dupbv( &mod->sml_values[0], &tmpval );
 864                         mod->sml_values[1].bv_len = 0;
 865                         mod->sml_values[1].bv_val = NULL;
 866                         assert( mod->sml_values[0].bv_val != NULL );
 867                         mod->sml_nvalues =
 868                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 869                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 870                         mod->sml_nvalues[1].bv_len = 0;
 871                         mod->sml_nvalues[1].bv_val = NULL;
 872                         assert( mod->sml_nvalues[0].bv_val != NULL );
 873                         *modtail = mod;
 874                         modtail = &mod->sml_next;
 875                 }
 876
 877                 if ( SLAP_LASTMOD( op->o_bd )) {
 878                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 879
 880                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 881                         tmpval.bv_val = uuidbuf;
 882
 883                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 884                         mod->sml_op = mop;
 885                         mod->sml_flags = SLAP_MOD_INTERNAL;
 886                         mod->sml_type.bv_val = NULL;
 887                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 888                         mod->sml_values =
 889                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 890                         ber_dupbv( &mod->sml_values[0], &tmpval );
 891                         mod->sml_values[1].bv_len = 0;
 892                         mod->sml_values[1].bv_val = NULL;
 893                         assert( mod->sml_values[0].bv_val != NULL );
 894                         mod->sml_nvalues =
 895                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 896                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 897                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 898                                         mod->sml_desc->ad_type->sat_syntax,
 899                                         mod->sml_desc->ad_type->sat_equality,
 900                                         mod->sml_values, mod->sml_nvalues, NULL );
 901                         mod->sml_nvalues[1].bv_len = 0;
 902                         mod->sml_nvalues[1].bv_val = NULL;
 903                         *modtail = mod;
 904                         modtail = &mod->sml_next;
 905
 906                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 907                         mod->sml_op = mop;
 908                         mod->sml_flags = SLAP_MOD_INTERNAL;
 909                         mod->sml_type.bv_val = NULL;
 910                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 911                         mod->sml_values =
 912                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 913                         ber_dupbv( &mod->sml_values[0], &name );
 914                         mod->sml_values[1].bv_len = 0;
 915                         mod->sml_values[1].bv_val = NULL;
 916                         assert( mod->sml_values[0].bv_val != NULL );
 917                         mod->sml_nvalues =
 918                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 919                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 920                         mod->sml_nvalues[1].bv_len = 0;
 921                         mod->sml_nvalues[1].bv_val = NULL;
 922                         assert( mod->sml_nvalues[0].bv_val != NULL );
 923                         *modtail = mod;
 924                         modtail = &mod->sml_next;
 925
 926                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 927                         mod->sml_op = mop;
 928                         mod->sml_flags = SLAP_MOD_INTERNAL;
 929                         mod->sml_type.bv_val = NULL;
 930                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 931                         mod->sml_values =
 932                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 933                         ber_dupbv( &mod->sml_values[0], &timestamp );
 934                         mod->sml_values[1].bv_len = 0;
 935                         mod->sml_values[1].bv_val = NULL;
 936                         assert( mod->sml_values[0].bv_val != NULL );
 937                         mod->sml_nvalues = NULL;
 938                         *modtail = mod;
 939                         modtail = &mod->sml_next;
 940                 }
 941         }
 942
 943         if ( SLAP_LASTMOD( op->o_bd )) {
 944                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 945                 mod->sml_op = mop;
 946                 mod->sml_flags = SLAP_MOD_INTERNAL;
 947                 mod->sml_type.bv_val = NULL;
 948                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 949                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 950                 ber_dupbv( &mod->sml_values[0], &csn );
 951                 mod->sml_values[1].bv_len = 0;
 952                 mod->sml_values[1].bv_val = NULL;
 953                 assert( mod->sml_values[0].bv_val != NULL );
 954                 mod->sml_nvalues = NULL;
 955                 *modtail = mod;
 956                 modtail = &mod->sml_next;
 957
 958                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 959                 mod->sml_op = mop;
 960                 mod->sml_flags = SLAP_MOD_INTERNAL;
 961                 mod->sml_type.bv_val = NULL;
 962                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 963                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 964                 ber_dupbv( &mod->sml_values[0], &name );
 965                 mod->sml_values[1].bv_len = 0;
 966                 mod->sml_values[1].bv_val = NULL;
 967                 assert( mod->sml_values[0].bv_val != NULL );
 968                 mod->sml_nvalues =
 969                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 970                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 971                 mod->sml_nvalues[1].bv_len = 0;
 972                 mod->sml_nvalues[1].bv_val = NULL;
 973                 assert( mod->sml_nvalues[0].bv_val != NULL );
 974                 *modtail = mod;
 975                 modtail = &mod->sml_next;
 976
 977                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 978                 mod->sml_op = mop;
 979                 mod->sml_flags = SLAP_MOD_INTERNAL;
 980                 mod->sml_type.bv_val = NULL;
 981                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 982                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 983                 ber_dupbv( &mod->sml_values[0], &timestamp );
 984                 mod->sml_values[1].bv_len = 0;
 985                 mod->sml_values[1].bv_val = NULL;
 986                 assert( mod->sml_values[0].bv_val != NULL );
 987                 mod->sml_nvalues = NULL;
 988                 *modtail = mod;
 989                 modtail = &mod->sml_next;
 990         }
 991
 992         *modtail = NULL;
 993         return LDAP_SUCCESS;
 994 }
 995