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         {
 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
 356         /* check for modify/increment support */
 357         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 358                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 359                         "modify/increment not supported in context" );
 360         }
 361
 362         /*
 363          * do the modify if 1 && (2 || 3)
 364          * 1) there is a modify function implemented in this backend;
 365          * 2) this backend is master for what it holds;
 366          * 3) it's a replica and the dn supplied is the update_ndn.
 367          */
 368         if ( op->o_bd->be_modify ) {
 369                 /* do the update here */
 370                 int repl_user = be_isupdate( op );
 371
 372                 /* Multimaster slapd does not have to check for replicator dn
 373                  * because it accepts each modify request
 374                  */
 375 #ifndef SLAPD_MULTIMASTER
 376                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 377 #endif
 378                 {
 379                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 380                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 381
 382                         op->o_bd = op_be;
 383
 384                         if ( !update ) {
 385                                 rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
 386                                         &rs->sr_text, textbuf, textlen );
 387                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 388                                         send_ldap_result( op, rs );
 389                                         goto cleanup;
 390                                 }
 391                         }
 392
 393                         if ( !repl_user ) {
 394                                 for( modtail = &modlist;
 395                                         *modtail != NULL;
 396                                         modtail = &(*modtail)->sml_next )
 397                                 {
 398                                         /* empty */
 399                                 }
 400
 401                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 402                                         &rs->sr_text, textbuf, textlen, 1 );
 403                                 if( rs->sr_err != LDAP_SUCCESS ) {
 404                                         send_ldap_result( op, rs );
 405                                         goto cleanup;
 406                                 }
 407                         }
 408
 409                         op->orm_modlist = modlist;
 410 #ifdef SLAPD_MULTIMASTER
 411                         if ( !repl_user )
 412 #endif
 413                         {
 414                                 /* but multimaster slapd logs only the ones
 415                                  * not from a replicator user */
 416                                 cb.sc_next = op->o_callback;
 417                                 op->o_callback = &cb;
 418                         }
 419                         op->o_bd->be_modify( op, rs );
 420
 421 #ifndef SLAPD_MULTIMASTER
 422                 /* send a referral */
 423                 } else {
 424                         BerVarray defref = op->o_bd->be_update_refs
 425                                 ? op->o_bd->be_update_refs : default_referral;
 426                         if ( defref != NULL ) {
 427                                 rs->sr_ref = referral_rewrite( defref,
 428                                         NULL, &op->o_req_dn,
 429                                         LDAP_SCOPE_DEFAULT );
 430                                 if ( rs->sr_ref == NULL ) {
 431                                         /* FIXME: must duplicate, because
 432                                          * overlays may muck with it */
 433                                         rs->sr_ref = defref;
 434                                 }
 435                                 rs->sr_err = LDAP_REFERRAL;
 436                                 send_ldap_result( op, rs );
 437                                 if ( rs->sr_ref != defref ) {
 438                                         ber_bvarray_free( rs->sr_ref );
 439                                 }
 440
 441                         } else {
 442                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 443                                         "shadow context; no update referral" );
 444                         }
 445 #endif
 446                 }
 447         } else {
 448                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 449                     "operation not supported within namingContext" );
 450         }
 451
 452 cleanup:;
 453         return rs->sr_err;
 454 }
 455
 456 /*
 457  * Obsolete constraint checking.
 458  */
 459 int
 460 slap_mods_obsolete_check(
 461         Operation *op,
 462         Modifications *ml,
 463         const char **text,
 464         char *textbuf,
 465         size_t textlen )
 466 {
 467         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 468
 469         for ( ; ml != NULL; ml = ml->sml_next ) {
 470                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 471                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 472                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 473                                         ml->sml_values != NULL ))
 474                 {
 475                         /*
 476                          * attribute is obsolete,
 477                          * only allow replace/delete with no values
 478                          */
 479                         snprintf( textbuf, textlen,
 480                                 "%s: attribute is obsolete",
 481                                 ml->sml_type.bv_val );
 482                         *text = textbuf;
 483                         return LDAP_CONSTRAINT_VIOLATION;
 484                 }
 485         }
 486
 487         return LDAP_SUCCESS;
 488 }
 489
 490 /*
 491  * No-user-modification constraint checking.
 492  */
 493 int
 494 slap_mods_no_user_mod_check(
 495         Operation *op,
 496         Modifications *ml,
 497         const char **text,
 498         char *textbuf,
 499         size_t textlen )
 500 {
 501         for ( ; ml != NULL; ml = ml->sml_next ) {
 502                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 503
 504                 if( get_manageDIT( op )) {
 505                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 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                                 if( pretty ) {
 676                                         rc = pretty( ad->ad_type->sat_syntax,
 677                                                 &ml->sml_values[nvals], &pval, ctx );
 678                                 } else {
 679                                         rc = validate( ad->ad_type->sat_syntax,
 680                                                 &ml->sml_values[nvals] );
 681                                 }
 682
 683                                 if( rc != 0 ) {
 684                                         snprintf( textbuf, textlen,
 685                                                 "%s: value #%ld invalid per syntax",
 686                                                 ml->sml_type.bv_val, (long) nvals );
 687                                         *text = textbuf;
 688                                         return LDAP_INVALID_SYNTAX;
 689                                 }
 690
 691                                 if( pretty ) {
 692                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 693                                         ml->sml_values[nvals] = pval;
 694                                 }
 695                         }
 696
 697                         /*
 698                          * a rough single value check... an additional check is needed
 699                          * to catch add of single value to existing single valued attribute
 700                          */
 701                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 702                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 703                         {
 704                                 snprintf( textbuf, textlen,
 705                                         "%s: multiple values provided",
 706                                         ml->sml_type.bv_val );
 707                                 *text = textbuf;
 708                                 return LDAP_CONSTRAINT_VIOLATION;
 709                         }
 710
 711                         /* if the type has a normalizer, generate the
 712                          * normalized values. otherwise leave them NULL.
 713                          *
 714                          * this is different from the rule for attributes
 715                          * in an entry - in an attribute list, the normalized
 716                          * value is set equal to the non-normalized value
 717                          * when there is no normalizer.
 718                          */
 719                         if( nvals && ad->ad_type->sat_equality &&
 720                                 ad->ad_type->sat_equality->smr_normalize )
 721                         {
 722                                 ml->sml_nvalues = ber_memalloc_x(
 723                                         (nvals+1)*sizeof(struct berval), ctx );
 724
 725                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 726                                         rc = ad->ad_type->sat_equality->smr_normalize(
 727                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 728                                                 ad->ad_type->sat_syntax,
 729                                                 ad->ad_type->sat_equality,
 730                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 731                                         if( rc ) {
 732                                                 Debug( LDAP_DEBUG_ANY,
 733                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 734                                                         rc, 0, 0 );
 735                                                 snprintf( textbuf, textlen,
 736                                                         "%s: value #%ld normalization failed",
 737                                                         ml->sml_type.bv_val, (long) nvals );
 738                                                 *text = textbuf;
 739                                                 return rc;
 740                                         }
 741                                 }
 742
 743                                 ml->sml_nvalues[nvals].bv_val = NULL;
 744                                 ml->sml_nvalues[nvals].bv_len = 0;
 745                         }
 746
 747                         /* check for duplicates, but ignore Deletes.
 748                          */
 749                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 750                                 int             i, j, rc, match;
 751                                 MatchingRule *mr = ad->ad_type->sat_equality;
 752
 753                                 for ( i = 1; i < nvals ; i++ ) {
 754                                         /* test asserted values against themselves */
 755                                         for( j = 0; j < i; j++ ) {
 756                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 757                                                         SLAP_MR_EQUALITY
 758                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 759                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 760                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 761                                                         ml->sml_nvalues
 762                                                                 ? &ml->sml_nvalues[i]
 763                                                                 : &ml->sml_values[i],
 764                                                         ml->sml_nvalues
 765                                                                 ? &ml->sml_nvalues[j]
 766                                                                 : &ml->sml_values[j],
 767                                                         text );
 768                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 769                                                         /* value exists already */
 770                                                         snprintf( textbuf, textlen,
 771                                                                 "%s: value #%d provided more than once",
 772                                                                 ml->sml_desc->ad_cname.bv_val, j );
 773                                                         *text = textbuf;
 774                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 775
 776                                                 } else if ( rc != LDAP_SUCCESS ) {
 777                                                         return rc;
 778                                                 }
 779                                         }
 780                                 }
 781                         }
 782
 783                 }
 784         }
 785
 786         return LDAP_SUCCESS;
 787 }
 788
 789 /* Enter with bv->bv_len = sizeof buffer, returns with
 790  * actual length of string
 791  */
 792 void slap_timestamp( time_t *tm, struct berval *bv )
 793 {
 794         struct tm *ltm;
 795 #ifdef HAVE_GMTIME_R
 796         struct tm ltm_buf;
 797
 798         ltm = gmtime_r( tm, &ltm_buf );
 799 #else
 800         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 801         ltm = gmtime( tm );
 802 #endif
 803
 804         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 805
 806 #ifndef HAVE_GMTIME_R
 807         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 808 #endif
 809 }
 810
 811 int slap_mods_opattrs(
 812         Operation *op,
 813         Modifications *mods,
 814         Modifications **modtail,
 815         const char **text,
 816         char *textbuf, size_t textlen,
 817         int manage_ctxcsn )
 818 {
 819         struct berval name, timestamp, csn;
 820         struct berval nname;
 821         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 822         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 823         Modifications *mod;
 824
 825         int mop = op->o_tag == LDAP_REQ_ADD
 826                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 827
 828         assert( modtail != NULL );
 829         assert( *modtail == NULL );
 830
 831         if ( SLAP_LASTMOD( op->o_bd )) {
 832                 time_t now = slap_get_time();
 833
 834                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, manage_ctxcsn );
 835
 836                 timestamp.bv_val = timebuf;
 837                 timestamp.bv_len = sizeof(timebuf);
 838
 839                 slap_timestamp( &now, &timestamp );
 840
 841                 if( op->o_dn.bv_len == 0 ) {
 842                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 843                         nname = name;
 844                 } else {
 845                         name = op->o_dn;
 846                         nname = op->o_ndn;
 847                 }
 848         }
 849
 850         if( op->o_tag == LDAP_REQ_ADD ) {
 851                 struct berval tmpval;
 852
 853                 {
 854                         int rc = mods_structural_class( mods, &tmpval,
 855                                 text, textbuf, textlen );
 856                         if( rc != LDAP_SUCCESS ) return rc;
 857
 858                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 859                         mod->sml_op = mop;
 860                         mod->sml_flags = SLAP_MOD_INTERNAL;
 861                         mod->sml_type.bv_val = NULL;
 862                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 863                         mod->sml_values =
 864                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 865                         ber_dupbv( &mod->sml_values[0], &tmpval );
 866                         mod->sml_values[1].bv_len = 0;
 867                         mod->sml_values[1].bv_val = NULL;
 868                         assert( mod->sml_values[0].bv_val != NULL );
 869                         mod->sml_nvalues =
 870                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 871                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 872                         mod->sml_nvalues[1].bv_len = 0;
 873                         mod->sml_nvalues[1].bv_val = NULL;
 874                         assert( mod->sml_nvalues[0].bv_val != NULL );
 875                         *modtail = mod;
 876                         modtail = &mod->sml_next;
 877                 }
 878
 879                 if ( SLAP_LASTMOD( op->o_bd )) {
 880                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 881
 882                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 883                         tmpval.bv_val = uuidbuf;
 884
 885                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 886                         mod->sml_op = mop;
 887                         mod->sml_flags = SLAP_MOD_INTERNAL;
 888                         mod->sml_type.bv_val = NULL;
 889                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 890                         mod->sml_values =
 891                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 892                         ber_dupbv( &mod->sml_values[0], &tmpval );
 893                         mod->sml_values[1].bv_len = 0;
 894                         mod->sml_values[1].bv_val = NULL;
 895                         assert( mod->sml_values[0].bv_val != NULL );
 896                         mod->sml_nvalues =
 897                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 898                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 899                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 900                                         mod->sml_desc->ad_type->sat_syntax,
 901                                         mod->sml_desc->ad_type->sat_equality,
 902                                         mod->sml_values, mod->sml_nvalues, NULL );
 903                         mod->sml_nvalues[1].bv_len = 0;
 904                         mod->sml_nvalues[1].bv_val = NULL;
 905                         *modtail = mod;
 906                         modtail = &mod->sml_next;
 907
 908                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 909                         mod->sml_op = mop;
 910                         mod->sml_flags = SLAP_MOD_INTERNAL;
 911                         mod->sml_type.bv_val = NULL;
 912                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 913                         mod->sml_values =
 914                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 915                         ber_dupbv( &mod->sml_values[0], &name );
 916                         mod->sml_values[1].bv_len = 0;
 917                         mod->sml_values[1].bv_val = NULL;
 918                         assert( mod->sml_values[0].bv_val != NULL );
 919                         mod->sml_nvalues =
 920                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 921                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 922                         mod->sml_nvalues[1].bv_len = 0;
 923                         mod->sml_nvalues[1].bv_val = NULL;
 924                         assert( mod->sml_nvalues[0].bv_val != NULL );
 925                         *modtail = mod;
 926                         modtail = &mod->sml_next;
 927
 928                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 929                         mod->sml_op = mop;
 930                         mod->sml_flags = SLAP_MOD_INTERNAL;
 931                         mod->sml_type.bv_val = NULL;
 932                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 933                         mod->sml_values =
 934                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 935                         ber_dupbv( &mod->sml_values[0], &timestamp );
 936                         mod->sml_values[1].bv_len = 0;
 937                         mod->sml_values[1].bv_val = NULL;
 938                         assert( mod->sml_values[0].bv_val != NULL );
 939                         mod->sml_nvalues = NULL;
 940                         *modtail = mod;
 941                         modtail = &mod->sml_next;
 942                 }
 943         }
 944
 945         if ( SLAP_LASTMOD( op->o_bd )) {
 946                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 947                 mod->sml_op = mop;
 948                 mod->sml_flags = SLAP_MOD_INTERNAL;
 949                 mod->sml_type.bv_val = NULL;
 950                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 951                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 952                 ber_dupbv( &mod->sml_values[0], &csn );
 953                 mod->sml_values[1].bv_len = 0;
 954                 mod->sml_values[1].bv_val = NULL;
 955                 assert( mod->sml_values[0].bv_val != NULL );
 956                 mod->sml_nvalues = NULL;
 957                 *modtail = mod;
 958                 modtail = &mod->sml_next;
 959
 960                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 961                 mod->sml_op = mop;
 962                 mod->sml_flags = SLAP_MOD_INTERNAL;
 963                 mod->sml_type.bv_val = NULL;
 964                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 965                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 966                 ber_dupbv( &mod->sml_values[0], &name );
 967                 mod->sml_values[1].bv_len = 0;
 968                 mod->sml_values[1].bv_val = NULL;
 969                 assert( mod->sml_values[0].bv_val != NULL );
 970                 mod->sml_nvalues =
 971                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 972                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 973                 mod->sml_nvalues[1].bv_len = 0;
 974                 mod->sml_nvalues[1].bv_val = NULL;
 975                 assert( mod->sml_nvalues[0].bv_val != NULL );
 976                 *modtail = mod;
 977                 modtail = &mod->sml_next;
 978
 979                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 980                 mod->sml_op = mop;
 981                 mod->sml_flags = SLAP_MOD_INTERNAL;
 982                 mod->sml_type.bv_val = NULL;
 983                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 984                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 985                 ber_dupbv( &mod->sml_values[0], &timestamp );
 986                 mod->sml_values[1].bv_len = 0;
 987                 mod->sml_values[1].bv_val = NULL;
 988                 assert( mod->sml_values[0].bv_val != NULL );
 989                 mod->sml_nvalues = NULL;
 990                 *modtail = mod;
 991                 modtail = &mod->sml_next;
 992         }
 993
 994         *modtail = NULL;
 995         return LDAP_SUCCESS;
 996 }
 997