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_managing = 0;
 110                 mod->sml_next = NULL;
 111                 *modtail = mod;
 112
 113                 switch( mop ) {
 114                 case LDAP_MOD_ADD:
 115                         if ( mod->sml_values == NULL ) {
 116                                 Debug( LDAP_DEBUG_ANY,
 117                                         "do_modify: modify/add operation (%ld) requires values\n",
 118                                         (long) mop, 0, 0 );
 119
 120                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 121                                         "modify/add operation requires values" );
 122                                 goto cleanup;
 123                         }
 124
 125                         /* fall through */
 126
 127                 case LDAP_MOD_DELETE:
 128                 case LDAP_MOD_REPLACE:
 129                         break;
 130
 131                 case LDAP_MOD_INCREMENT:
 132                         if( op->o_protocol >= LDAP_VERSION3 ) {
 133                                 increment++;
 134                                 if ( mod->sml_values == NULL ) {
 135                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 136                                                 "modify/increment operation (%ld) requires value\n",
 137                                                 (long) mop, 0, 0 );
 138
 139                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 140                                                 "modify/increment operation requires value" );
 141                                         goto cleanup;
 142                                 }
 143
 144                                 if ( !BER_BVISNULL( &mod->sml_values[ 1 ] ) ) {
 145                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 146                                                 "operation (%ld) requires single value\n",
 147                                                 (long) mop, 0, 0 );
 148
 149                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 150                                                 "modify/increment operation requires single value" );
 151                                         goto cleanup;
 152                                 }
 153
 154                                 break;
 155                         }
 156                         /* fall thru */
 157
 158                 default: {
 159                                 Debug( LDAP_DEBUG_ANY,
 160                                         "do_modify: unrecognized modify operation (%ld)\n",
 161                                         (long) mop, 0, 0 );
 162
 163                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 164                                         "unrecognized modify operation" );
 165                                 goto cleanup;
 166                         }
 167                 }
 168
 169                 modtail = &mod->sml_next;
 170         }
 171         *modtail = NULL;
 172
 173         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 174                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 175
 176                 goto cleanup;
 177         }
 178
 179         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 180                 op->o_tmpmemctx );
 181         if( rs->sr_err != LDAP_SUCCESS ) {
 182                 Debug( LDAP_DEBUG_ANY,
 183                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 184                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 185                 goto cleanup;
 186         }
 187
 188         rs->sr_err = slap_mods_check( modlist,
 189                 &rs->sr_text, textbuf, textlen, NULL );
 190
 191         if ( rs->sr_err != LDAP_SUCCESS ) {
 192                 send_ldap_result( op, rs );
 193                 goto cleanup;
 194         }
 195
 196         /* FIXME: needs review */
 197         op->orm_modlist = modlist;
 198         op->orm_increment = increment;
 199
 200         op->o_bd = frontendDB;
 201         rs->sr_err = frontendDB->be_modify( op, rs );
 202
 203 cleanup:
 204         slap_graduate_commit_csn( op );
 205
 206         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 207         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 208         if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist, 1 );
 209
 210         return rs->sr_err;
 211 }
 212
 213 int
 214 fe_op_modify( Operation *op, SlapReply *rs )
 215 {
 216 #ifdef LDAP_DEBUG
 217         Modifications   *tmp;
 218 #endif
 219         int             manageDSAit;
 220         Modifications   *modlist = op->orm_modlist;
 221         Modifications   **modtail = &modlist;
 222         int             increment = op->orm_increment;
 223         BackendDB *op_be;
 224         char            textbuf[ SLAP_TEXT_BUFLEN ];
 225         size_t          textlen = sizeof( textbuf );
 226
 227         if( op->o_req_ndn.bv_len == 0 ) {
 228                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 229
 230                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 231                         "modify upon the root DSE not supported" );
 232                 goto cleanup;
 233
 234         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 235                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 236
 237                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 238                         "modification of subschema subentry not supported" );
 239                 goto cleanup;
 240         }
 241
 242 #ifdef LDAP_DEBUG
 243         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 244
 245         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 246                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 247                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 248                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 249                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 250                                         "replace")), tmp->sml_type.bv_val, 0 );
 251
 252                 if ( tmp->sml_values == NULL ) {
 253                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 254                            "\t\tno values", NULL, NULL );
 255                 } else if ( BER_BVISNULL( &tmp->sml_values[ 0 ] ) ) {
 256                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 257                            "\t\tzero values", NULL, NULL );
 258                 } else if ( BER_BVISNULL( &tmp->sml_values[ 1 ] ) ) {
 259                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 260                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 261                 } else {
 262                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 263                            "\t\tmultiple values", NULL, NULL );
 264                 }
 265         }
 266
 267         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 268                 char abuf[BUFSIZ/2], *ptr = abuf;
 269                 int len = 0;
 270
 271                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 272                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 273
 274                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 275                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 276                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 277                                     op->o_log_prefix, abuf, 0, 0, 0 );
 278
 279                                 len = 0;
 280                                 ptr = abuf;
 281
 282                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 283                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 284                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 285                                         continue;
 286                                 }
 287                         }
 288                         if (len) {
 289                                 *ptr++ = ' ';
 290                                 len++;
 291                         }
 292                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 293                         len += tmp->sml_type.bv_len;
 294                 }
 295                 if (len) {
 296                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 297                                 op->o_log_prefix, abuf, 0, 0, 0 );
 298                 }
 299         }
 300 #endif  /* LDAP_DEBUG */
 301
 302         manageDSAit = get_manageDSAit( op );
 303
 304         /*
 305          * We could be serving multiple database backends.  Select the
 306          * appropriate one, or send a referral to our "referral server"
 307          * if we don't hold it.
 308          */
 309         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 310         if ( op->o_bd == NULL ) {
 311                 rs->sr_ref = referral_rewrite( default_referral,
 312                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 313                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 314
 315                 if (rs->sr_ref != NULL ) {
 316                         rs->sr_err = LDAP_REFERRAL;
 317                         op->o_bd = frontendDB;
 318                         send_ldap_result( op, rs );
 319                         op->o_bd = NULL;
 320
 321                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 322                 } else {
 323                         op->o_bd = frontendDB;
 324                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 325                                 "no global superior knowledge" );
 326                         op->o_bd = NULL;
 327                 }
 328                 goto cleanup;
 329         }
 330
 331         /* If we've got a glued backend, check the real backend */
 332         op_be = op->o_bd;
 333         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 334                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 335         }
 336
 337         /* check restrictions */
 338         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 339                 send_ldap_result( op, rs );
 340                 goto cleanup;
 341         }
 342
 343         /* check for referrals */
 344         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 345                 goto cleanup;
 346         }
 347
 348         rs->sr_err = slap_mods_obsolete_check( op, modlist,
 349                 &rs->sr_text, textbuf, textlen );
 350         if ( rs->sr_err != LDAP_SUCCESS ) {
 351                 send_ldap_result( op, rs );
 352                 goto cleanup;
 353         }
 354
 355         /* check for modify/increment support */
 356         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 357                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 358                         "modify/increment not supported in context" );
 359         }
 360
 361         /*
 362          * do the modify if 1 && (2 || 3)
 363          * 1) there is a modify function implemented in this backend;
 364          * 2) this backend is master for what it holds;
 365          * 3) it's a replica and the dn supplied is the update_ndn.
 366          */
 367         if ( op->o_bd->be_modify ) {
 368                 /* do the update here */
 369                 int repl_user = be_isupdate( op );
 370
 371                 /* Multimaster slapd does not have to check for replicator dn
 372                  * because it accepts each modify request
 373                  */
 374 #ifndef SLAPD_MULTIMASTER
 375                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 376 #endif
 377                 {
 378                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 379                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 380
 381                         op->o_bd = op_be;
 382
 383                         if ( !update ) {
 384                                 rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
 385                                         &rs->sr_text, textbuf, textlen );
 386                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 387                                         send_ldap_result( op, rs );
 388                                         goto cleanup;
 389                                 }
 390                         }
 391
 392                         if ( !repl_user ) {
 393                                 for( modtail = &modlist;
 394                                         *modtail != NULL;
 395                                         modtail = &(*modtail)->sml_next )
 396                                 {
 397                                         /* empty */
 398                                 }
 399
 400                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 401                                         &rs->sr_text, textbuf, textlen, 1 );
 402                                 if( rs->sr_err != LDAP_SUCCESS ) {
 403                                         send_ldap_result( op, rs );
 404                                         goto cleanup;
 405                                 }
 406                         }
 407
 408                         op->orm_modlist = modlist;
 409 #ifdef SLAPD_MULTIMASTER
 410                         if ( !repl_user )
 411 #endif
 412                         {
 413                                 /* but multimaster slapd logs only the ones
 414                                  * not from a replicator user */
 415                                 cb.sc_next = op->o_callback;
 416                                 op->o_callback = &cb;
 417                         }
 418                         op->o_bd->be_modify( op, rs );
 419
 420 #ifndef SLAPD_MULTIMASTER
 421                 /* send a referral */
 422                 } else {
 423                         BerVarray defref = op->o_bd->be_update_refs
 424                                 ? op->o_bd->be_update_refs : default_referral;
 425                         if ( defref != NULL ) {
 426                                 rs->sr_ref = referral_rewrite( defref,
 427                                         NULL, &op->o_req_dn,
 428                                         LDAP_SCOPE_DEFAULT );
 429                                 if ( rs->sr_ref == NULL ) {
 430                                         /* FIXME: must duplicate, because
 431                                          * overlays may muck with it */
 432                                         rs->sr_ref = defref;
 433                                 }
 434                                 rs->sr_err = LDAP_REFERRAL;
 435                                 send_ldap_result( op, rs );
 436                                 if ( rs->sr_ref != defref ) {
 437                                         ber_bvarray_free( rs->sr_ref );
 438                                 }
 439
 440                         } else {
 441                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 442                                         "shadow context; no update referral" );
 443                         }
 444 #endif
 445                 }
 446         } else {
 447                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 448                     "operation not supported within namingContext" );
 449         }
 450
 451 cleanup:;
 452         return rs->sr_err;
 453 }
 454
 455 /*
 456  * Obsolete constraint checking.
 457  */
 458 int
 459 slap_mods_obsolete_check(
 460         Operation *op,
 461         Modifications *ml,
 462         const char **text,
 463         char *textbuf,
 464         size_t textlen )
 465 {
 466         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 467
 468         for ( ; ml != NULL; ml = ml->sml_next ) {
 469                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 470                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 471                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 472                                         ml->sml_values != NULL ))
 473                 {
 474                         /*
 475                          * attribute is obsolete,
 476                          * only allow replace/delete with no values
 477                          */
 478                         snprintf( textbuf, textlen,
 479                                 "%s: attribute is obsolete",
 480                                 ml->sml_type.bv_val );
 481                         *text = textbuf;
 482                         return LDAP_CONSTRAINT_VIOLATION;
 483                 }
 484         }
 485
 486         return LDAP_SUCCESS;
 487 }
 488
 489 /*
 490  * No-user-modification constraint checking.
 491  */
 492 int
 493 slap_mods_no_user_mod_check(
 494         Operation *op,
 495         Modifications *ml,
 496         const char **text,
 497         char *textbuf,
 498         size_t textlen )
 499 {
 500         for ( ; ml != NULL; ml = ml->sml_next ) {
 501                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 502
 503                 if ( get_manageDIT( op ) ) {
 504                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 505                                 ml->sml_managing = 1;
 506                                 continue;
 507                         }
 508
 509                         /* attribute not manageable */
 510                         snprintf( textbuf, textlen,
 511                                 "%s: no-user-modification attribute not manageable",
 512                                 ml->sml_type.bv_val );
 513
 514                 } else {
 515                         /* user modification disallowed */
 516                         snprintf( textbuf, textlen,
 517                                 "%s: no user modification allowed",
 518                                 ml->sml_type.bv_val );
 519                 }
 520
 521                 *text = textbuf;
 522                 return LDAP_CONSTRAINT_VIOLATION;
 523         }
 524
 525         return LDAP_SUCCESS;
 526 }
 527
 528 int
 529 slap_mods_no_repl_user_mod_check(
 530         Operation *op,
 531         Modifications *ml,
 532         const char **text,
 533         char *textbuf,
 534         size_t textlen )
 535 {
 536         Modifications *mods;
 537         Modifications *modp;
 538
 539         for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
 540                 assert( mods->sml_op == LDAP_MOD_ADD );
 541
 542                 /* check doesn't already appear */
 543                 for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
 544                         if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
 545                                 snprintf( textbuf, textlen,
 546                                         "attribute '%s' provided more than once",
 547                                         mods->sml_desc->ad_cname.bv_val );
 548                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 549                         }
 550                 }
 551         }
 552
 553         return LDAP_SUCCESS;
 554 }
 555
 556 /*
 557  * Do basic attribute type checking and syntax validation.
 558  */
 559 int slap_mods_check(
 560         Modifications *ml,
 561         const char **text,
 562         char *textbuf,
 563         size_t textlen,
 564         void *ctx )
 565 {
 566         int rc;
 567
 568         for( ; ml != NULL; ml = ml->sml_next ) {
 569                 AttributeDescription *ad = NULL;
 570
 571                 /* convert to attribute description */
 572                 if ( ml->sml_desc == NULL ) {
 573                         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 574                         if( rc != LDAP_SUCCESS ) {
 575                                 snprintf( textbuf, textlen, "%s: %s",
 576                                         ml->sml_type.bv_val, *text );
 577                                 *text = textbuf;
 578                                 return rc;
 579                         }
 580                 }
 581
 582                 ad = ml->sml_desc;
 583
 584                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 585                         && !slap_ad_is_binary( ad ))
 586                 {
 587                         /* attribute requires binary transfer */
 588                         snprintf( textbuf, textlen,
 589                                 "%s: requires ;binary transfer",
 590                                 ml->sml_type.bv_val );
 591                         *text = textbuf;
 592                         return LDAP_UNDEFINED_TYPE;
 593                 }
 594
 595                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 596                         && slap_ad_is_binary( ad ))
 597                 {
 598                         /* attribute does not require binary transfer */
 599                         snprintf( textbuf, textlen,
 600                                 "%s: disallows ;binary transfer",
 601                                 ml->sml_type.bv_val );
 602                         *text = textbuf;
 603                         return LDAP_UNDEFINED_TYPE;
 604                 }
 605
 606                 if( slap_ad_is_tag_range( ad )) {
 607                         /* attribute requires binary transfer */
 608                         snprintf( textbuf, textlen,
 609                                 "%s: inappropriate use of tag range option",
 610                                 ml->sml_type.bv_val );
 611                         *text = textbuf;
 612                         return LDAP_UNDEFINED_TYPE;
 613                 }
 614
 615 #if 0
 616                 if ( is_at_obsolete( ad->ad_type ) &&
 617                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 618                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 619                                         ml->sml_values != NULL ))
 620                 {
 621                         /*
 622                          * attribute is obsolete,
 623                          * only allow replace/delete with no values
 624                          */
 625                         snprintf( textbuf, textlen,
 626                                 "%s: attribute is obsolete",
 627                                 ml->sml_type.bv_val );
 628                         *text = textbuf;
 629                         return LDAP_CONSTRAINT_VIOLATION;
 630                 }
 631 #endif
 632
 633                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 634 #ifdef SLAPD_REAL_SYNTAX
 635                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 636 #endif
 637                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 638                 {
 639                         /*
 640                          * attribute values must be INTEGER or REAL
 641                          */
 642                         snprintf( textbuf, textlen,
 643                                 "%s: attribute syntax inappropriate for increment",
 644                                 ml->sml_type.bv_val );
 645                         *text = textbuf;
 646                         return LDAP_CONSTRAINT_VIOLATION;
 647                 }
 648
 649                 /*
 650                  * check values
 651                  */
 652                 if( ml->sml_values != NULL ) {
 653                         ber_len_t nvals;
 654                         slap_syntax_validate_func *validate =
 655                                 ad->ad_type->sat_syntax->ssyn_validate;
 656                         slap_syntax_transform_func *pretty =
 657                                 ad->ad_type->sat_syntax->ssyn_pretty;
 658
 659                         if( !pretty && !validate ) {
 660                                 *text = "no validator for syntax";
 661                                 snprintf( textbuf, textlen,
 662                                         "%s: no validator for syntax %s",
 663                                         ml->sml_type.bv_val,
 664                                         ad->ad_type->sat_syntax->ssyn_oid );
 665                                 *text = textbuf;
 666                                 return LDAP_INVALID_SYNTAX;
 667                         }
 668
 669                         /*
 670                          * check that each value is valid per syntax
 671                          *      and pretty if appropriate
 672                          */
 673                         for ( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 674                                 struct berval pval;
 675
 676                                 if ( pretty ) {
 677 #ifdef SLAP_ORDERED_PRETTYNORM
 678                                         rc = ordered_value_pretty( ad,
 679                                                 &ml->sml_values[nvals], &pval, ctx );
 680 #else /* ! SLAP_ORDERED_PRETTYNORM */
 681                                         rc = pretty( ad->ad_type->sat_syntax,
 682                                                 &ml->sml_values[nvals], &pval, ctx );
 683 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 684                                 } else {
 685 #ifdef SLAP_ORDERED_PRETTYNORM
 686                                         rc = ordered_value_validate( ad,
 687                                                 &ml->sml_values[nvals] );
 688 #else /* ! SLAP_ORDERED_PRETTYNORM */
 689                                         rc = validate( ad->ad_type->sat_syntax,
 690                                                 &ml->sml_values[nvals] );
 691 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 692                                 }
 693
 694                                 if( rc != 0 ) {
 695                                         snprintf( textbuf, textlen,
 696                                                 "%s: value #%ld invalid per syntax",
 697                                                 ml->sml_type.bv_val, (long) nvals );
 698                                         *text = textbuf;
 699                                         return LDAP_INVALID_SYNTAX;
 700                                 }
 701
 702                                 if( pretty ) {
 703                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 704                                         ml->sml_values[nvals] = pval;
 705                                 }
 706                         }
 707
 708                         /*
 709                          * a rough single value check... an additional check is needed
 710                          * to catch add of single value to existing single valued attribute
 711                          */
 712                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 713                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 714                         {
 715                                 snprintf( textbuf, textlen,
 716                                         "%s: multiple values provided",
 717                                         ml->sml_type.bv_val );
 718                                 *text = textbuf;
 719                                 return LDAP_CONSTRAINT_VIOLATION;
 720                         }
 721
 722                         /* if the type has a normalizer, generate the
 723                          * normalized values. otherwise leave them NULL.
 724                          *
 725                          * this is different from the rule for attributes
 726                          * in an entry - in an attribute list, the normalized
 727                          * value is set equal to the non-normalized value
 728                          * when there is no normalizer.
 729                          */
 730                         if( nvals && ad->ad_type->sat_equality &&
 731                                 ad->ad_type->sat_equality->smr_normalize )
 732                         {
 733                                 ml->sml_nvalues = ber_memalloc_x(
 734                                         (nvals+1)*sizeof(struct berval), ctx );
 735
 736                                 for ( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 737 #ifdef SLAP_ORDERED_PRETTYNORM
 738                                         rc = ordered_value_normalize(
 739                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 740                                                 ad,
 741                                                 ad->ad_type->sat_equality,
 742                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 743 #else /* ! SLAP_ORDERED_PRETTYNORM */
 744                                         rc = ad->ad_type->sat_equality->smr_normalize(
 745                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 746                                                 ad->ad_type->sat_syntax,
 747                                                 ad->ad_type->sat_equality,
 748                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 749 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 750                                         if ( rc ) {
 751                                                 Debug( LDAP_DEBUG_ANY,
 752                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 753                                                         rc, 0, 0 );
 754                                                 snprintf( textbuf, textlen,
 755                                                         "%s: value #%ld normalization failed",
 756                                                         ml->sml_type.bv_val, (long) nvals );
 757                                                 *text = textbuf;
 758                                                 return rc;
 759                                         }
 760                                 }
 761
 762                                 BER_BVZERO( &ml->sml_nvalues[nvals] );
 763                         }
 764
 765                         /* check for duplicates, but ignore Deletes.
 766                          */
 767                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 768                                 int             i, j, rc, match;
 769                                 MatchingRule *mr = ad->ad_type->sat_equality;
 770
 771                                 for ( i = 1; i < nvals ; i++ ) {
 772                                         /* test asserted values against themselves */
 773                                         for( j = 0; j < i; j++ ) {
 774                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 775                                                         SLAP_MR_EQUALITY
 776                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 777                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 778                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 779                                                         ml->sml_nvalues
 780                                                                 ? &ml->sml_nvalues[i]
 781                                                                 : &ml->sml_values[i],
 782                                                         ml->sml_nvalues
 783                                                                 ? &ml->sml_nvalues[j]
 784                                                                 : &ml->sml_values[j],
 785                                                         text );
 786                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 787                                                         /* value exists already */
 788                                                         snprintf( textbuf, textlen,
 789                                                                 "%s: value #%d provided more than once",
 790                                                                 ml->sml_desc->ad_cname.bv_val, j );
 791                                                         *text = textbuf;
 792                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 793
 794                                                 } else if ( rc != LDAP_SUCCESS ) {
 795                                                         return rc;
 796                                                 }
 797                                         }
 798                                 }
 799                         }
 800
 801                 }
 802         }
 803
 804         return LDAP_SUCCESS;
 805 }
 806
 807 /* Enter with bv->bv_len = sizeof buffer, returns with
 808  * actual length of string
 809  */
 810 void slap_timestamp( time_t *tm, struct berval *bv )
 811 {
 812         struct tm *ltm;
 813 #ifdef HAVE_GMTIME_R
 814         struct tm ltm_buf;
 815
 816         ltm = gmtime_r( tm, &ltm_buf );
 817 #else
 818         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 819         ltm = gmtime( tm );
 820 #endif
 821
 822         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 823
 824 #ifndef HAVE_GMTIME_R
 825         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 826 #endif
 827 }
 828
 829 int slap_mods_opattrs(
 830         Operation *op,
 831         Modifications *mods,
 832         Modifications **modtail,
 833         const char **text,
 834         char *textbuf, size_t textlen,
 835         int manage_ctxcsn )
 836 {
 837         struct berval name, timestamp, csn;
 838         struct berval nname;
 839         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 840         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 841         Modifications *mod;
 842
 843         int mop = op->o_tag == LDAP_REQ_ADD
 844                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 845
 846         assert( modtail != NULL );
 847         assert( *modtail == NULL );
 848
 849         if ( SLAP_LASTMOD( op->o_bd ) ) {
 850                 time_t now = slap_get_time();
 851
 852                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 853
 854                 timestamp.bv_val = timebuf;
 855                 timestamp.bv_len = sizeof(timebuf);
 856
 857                 slap_timestamp( &now, &timestamp );
 858
 859                 if ( BER_BVISEMPTY( &op->o_dn ) ) {
 860                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 861                         nname = name;
 862                 } else {
 863                         name = op->o_dn;
 864                         nname = op->o_ndn;
 865                 }
 866         }
 867
 868         if ( op->o_tag == LDAP_REQ_ADD ) {
 869                 struct berval tmpval;
 870
 871                 mod = *modtail;
 872                 if ( get_manageDIT( op ) ) {
 873                         for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 874                                 if ( mod->sml_desc == slap_schema.si_ad_structuralObjectClass ) {
 875                                         break;
 876                                 }
 877                         }
 878
 879                 }
 880
 881                 if ( mod == *modtail ) {
 882                         int rc = mods_structural_class( mods, &tmpval,
 883                                 text, textbuf, textlen );
 884                         if( rc != LDAP_SUCCESS ) return rc;
 885
 886                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 887                         mod->sml_managing = 0;
 888                         mod->sml_op = mop;
 889                         mod->sml_flags = SLAP_MOD_INTERNAL;
 890                         BER_BVZERO( &mod->sml_type );
 891                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 892                         mod->sml_values =
 893                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 894                         ber_dupbv( &mod->sml_values[0], &tmpval );
 895                         BER_BVZERO( &mod->sml_values[1] );
 896                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 897                         mod->sml_nvalues =
 898                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 899                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 900                         BER_BVZERO( &mod->sml_nvalues[1] );
 901                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 902                         *modtail = mod;
 903                         modtail = &mod->sml_next;
 904                 }
 905
 906                 if ( SLAP_LASTMOD( op->o_bd ) ) {
 907                         mod = *modtail;
 908                         if ( get_manageDIT( op ) ) {
 909                                 for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 910                                         if ( mod->sml_desc == slap_schema.si_ad_entryUUID ) {
 911                                                 break;
 912                                         }
 913                                 }
 914                         }
 915
 916                         if ( mod == *modtail ) {
 917                                 char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 918
 919                                 tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 920                                 tmpval.bv_val = uuidbuf;
 921
 922                                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 923                                 mod->sml_managing = 0;
 924                                 mod->sml_op = mop;
 925                                 mod->sml_flags = SLAP_MOD_INTERNAL;
 926                                 BER_BVZERO( &mod->sml_type );
 927                                 mod->sml_desc = slap_schema.si_ad_entryUUID;
 928                                 mod->sml_values =
 929                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 930                                 ber_dupbv( &mod->sml_values[0], &tmpval );
 931                                 BER_BVZERO( &mod->sml_values[1] );
 932                                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 933                                 mod->sml_nvalues =
 934                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 935                                 (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 936                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 937                                                 mod->sml_desc->ad_type->sat_syntax,
 938                                                 mod->sml_desc->ad_type->sat_equality,
 939                                                 mod->sml_values, mod->sml_nvalues, NULL );
 940                                 BER_BVZERO( &mod->sml_nvalues[1] );
 941                                 *modtail = mod;
 942                                 modtail = &mod->sml_next;
 943                         }
 944
 945                         mod = *modtail;
 946                         if ( get_manageDIT( op ) ) {
 947                                 for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 948                                         if ( mod->sml_desc == slap_schema.si_ad_creatorsName ) {
 949                                                 break;
 950                                         }
 951                                 }
 952                         }
 953
 954                         if ( mod == *modtail ) {
 955                                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 956                                 mod->sml_managing = 0;
 957                                 mod->sml_op = mop;
 958                                 mod->sml_flags = SLAP_MOD_INTERNAL;
 959                                 BER_BVZERO( &mod->sml_type );
 960                                 mod->sml_desc = slap_schema.si_ad_creatorsName;
 961                                 mod->sml_values =
 962                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 963                                 ber_dupbv( &mod->sml_values[0], &name );
 964                                 BER_BVZERO( &mod->sml_values[1] );
 965                                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 966                                 mod->sml_nvalues =
 967                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 968                                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 969                                 BER_BVZERO( &mod->sml_nvalues[1] );
 970                                 assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 971                                 *modtail = mod;
 972                                 modtail = &mod->sml_next;
 973                         }
 974
 975                         mod = *modtail;
 976                         if ( get_manageDIT( op ) ) {
 977                                 for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
 978                                         if ( mod->sml_desc == slap_schema.si_ad_createTimestamp ) {
 979                                                 break;
 980                                         }
 981                                 }
 982                         }
 983
 984                         if ( mod == *modtail ) {
 985                                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 986                                 mod->sml_managing = 0;
 987                                 mod->sml_op = mop;
 988                                 mod->sml_flags = SLAP_MOD_INTERNAL;
 989                                 BER_BVZERO( &mod->sml_type );
 990                                 mod->sml_desc = slap_schema.si_ad_createTimestamp;
 991                                 mod->sml_values =
 992                                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 993                                 ber_dupbv( &mod->sml_values[0], &timestamp );
 994                                 BER_BVZERO( &mod->sml_values[1] );
 995                                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 996                                 mod->sml_nvalues = NULL;
 997                                 *modtail = mod;
 998                                 modtail = &mod->sml_next;
 999                         }
1000                 }
1001         }
1002
1003         if ( SLAP_LASTMOD( op->o_bd ) ) {
1004                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1005                 mod->sml_managing = 0;
1006                 mod->sml_op = mop;
1007                 mod->sml_flags = SLAP_MOD_INTERNAL;
1008                 BER_BVZERO( &mod->sml_type );
1009                 mod->sml_desc = slap_schema.si_ad_entryCSN;
1010                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1011                 ber_dupbv( &mod->sml_values[0], &csn );
1012                 BER_BVZERO( &mod->sml_values[1] );
1013                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
1014                 mod->sml_nvalues = NULL;
1015                 *modtail = mod;
1016                 modtail = &mod->sml_next;
1017
1018                 mod = *modtail;
1019                 if ( get_manageDIT( op ) ) {
1020                         for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
1021                                 if ( mod->sml_desc == slap_schema.si_ad_modifiersName ) {
1022                                         break;
1023                                 }
1024                         }
1025                 }
1026
1027                 if ( mod == *modtail ) {
1028                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1029                         mod->sml_managing = 0;
1030                         mod->sml_op = mop;
1031                         mod->sml_flags = SLAP_MOD_INTERNAL;
1032                         BER_BVZERO( &mod->sml_type );
1033                         mod->sml_desc = slap_schema.si_ad_modifiersName;
1034                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1035                         ber_dupbv( &mod->sml_values[0], &name );
1036                         BER_BVZERO( &mod->sml_values[1] );
1037                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
1038                         mod->sml_nvalues =
1039                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1040                         ber_dupbv( &mod->sml_nvalues[0], &nname );
1041                         BER_BVZERO( &mod->sml_nvalues[1] );
1042                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
1043                         *modtail = mod;
1044                         modtail = &mod->sml_next;
1045                 }
1046
1047                 mod = *modtail;
1048                 if ( get_manageDIT( op ) ) {
1049                         for ( mod = mods; mod != *modtail; mod = mod->sml_next ) {
1050                                 if ( mod->sml_desc == slap_schema.si_ad_modifyTimestamp ) {
1051                                         break;
1052                                 }
1053                         }
1054                 }
1055
1056                 if ( mod == *modtail ) {
1057                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1058                         mod->sml_managing = 0;
1059                         mod->sml_op = mop;
1060                         mod->sml_flags = SLAP_MOD_INTERNAL;
1061                         BER_BVZERO( &mod->sml_type );
1062                         mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
1063                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1064                         ber_dupbv( &mod->sml_values[0], &timestamp );
1065                         BER_BVZERO( &mod->sml_values[1] );
1066                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
1067                         mod->sml_nvalues = NULL;
1068                         *modtail = mod;
1069                         modtail = &mod->sml_next;
1070                 }
1071         }
1072
1073         *modtail = NULL;
1074         return LDAP_SUCCESS;
1075 }
1076