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 1998-2006 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 ( !BER_BVISNULL( &mod->sml_values[ 1 ] ) ) {
 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                 goto cleanup;
 175         }
 176
 177         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 178                 op->o_tmpmemctx );
 179         if( rs->sr_err != LDAP_SUCCESS ) {
 180                 Debug( LDAP_DEBUG_ANY,
 181                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 182                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 183                 goto cleanup;
 184         }
 185
 186         rs->sr_err = slap_mods_check( modlist,
 187                 &rs->sr_text, textbuf, textlen, NULL );
 188
 189         if ( rs->sr_err != LDAP_SUCCESS ) {
 190                 send_ldap_result( op, rs );
 191                 goto cleanup;
 192         }
 193
 194         /* FIXME: needs review */
 195         op->orm_modlist = modlist;
 196         op->orm_increment = increment;
 197
 198         op->o_bd = frontendDB;
 199         rs->sr_err = frontendDB->be_modify( op, rs );
 200
 201 cleanup:
 202         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 203         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 204         if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist, 1 );
 205
 206         return rs->sr_err;
 207 }
 208
 209 int
 210 fe_op_modify( Operation *op, SlapReply *rs )
 211 {
 212 #ifdef LDAP_DEBUG
 213         Modifications   *tmp;
 214 #endif
 215         int             manageDSAit;
 216         BackendDB       *op_be, *bd = op->o_bd;
 217         char            textbuf[ SLAP_TEXT_BUFLEN ];
 218         size_t          textlen = sizeof( textbuf );
 219
 220         if ( BER_BVISEMPTY( &op->o_req_ndn ) ) {
 221                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 222
 223                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 224                         "modify upon the root DSE not supported" );
 225                 goto cleanup;
 226
 227         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 228                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 229
 230                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 231                         "modification of subschema subentry not supported" );
 232                 goto cleanup;
 233         }
 234
 235 #ifdef LDAP_DEBUG
 236         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 237
 238         for ( tmp = op->orm_modlist; tmp != NULL; tmp = tmp->sml_next ) {
 239                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 240                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 241                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 242                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 243                                         "replace")), tmp->sml_type.bv_val, 0 );
 244
 245                 if ( tmp->sml_values == NULL ) {
 246                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 247                            "\t\tno values", NULL, NULL );
 248                 } else if ( BER_BVISNULL( &tmp->sml_values[ 0 ] ) ) {
 249                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 250                            "\t\tzero values", NULL, NULL );
 251                 } else if ( BER_BVISNULL( &tmp->sml_values[ 1 ] ) ) {
 252                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 253                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 254                 } else {
 255                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 256                            "\t\tmultiple values", NULL, NULL );
 257                 }
 258         }
 259
 260         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 261                 char abuf[BUFSIZ/2], *ptr = abuf;
 262                 int len = 0;
 263
 264                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 265                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 266
 267                 for ( tmp = op->orm_modlist; tmp != NULL; tmp = tmp->sml_next ) {
 268                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 269                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 270                                     op->o_log_prefix, abuf, 0, 0, 0 );
 271
 272                                 len = 0;
 273                                 ptr = abuf;
 274
 275                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 276                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 277                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 278                                         continue;
 279                                 }
 280                         }
 281                         if (len) {
 282                                 *ptr++ = ' ';
 283                                 len++;
 284                         }
 285                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 286                         len += tmp->sml_type.bv_len;
 287                 }
 288                 if (len) {
 289                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 290                                 op->o_log_prefix, abuf, 0, 0, 0 );
 291                 }
 292         }
 293 #endif  /* LDAP_DEBUG */
 294
 295         manageDSAit = get_manageDSAit( op );
 296
 297         /*
 298          * We could be serving multiple database backends.  Select the
 299          * appropriate one, or send a referral to our "referral server"
 300          * if we don't hold it.
 301          */
 302         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 303         if ( op->o_bd == NULL ) {
 304                 op->o_bd = bd;
 305                 rs->sr_ref = referral_rewrite( default_referral,
 306                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 307                 if ( !rs->sr_ref ) {
 308                         rs->sr_ref = default_referral;
 309                 }
 310
 311                 if ( rs->sr_ref != NULL ) {
 312                         rs->sr_err = LDAP_REFERRAL;
 313                         send_ldap_result( op, rs );
 314
 315                         if ( rs->sr_ref != default_referral ) {
 316                                 ber_bvarray_free( rs->sr_ref );
 317                         }
 318
 319                 } else {
 320                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 321                                 "no global superior knowledge" );
 322                 }
 323                 goto cleanup;
 324         }
 325
 326         /* If we've got a glued backend, check the real backend */
 327         op_be = op->o_bd;
 328         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 329                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 330         }
 331
 332         /* check restrictions */
 333         if ( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 334                 send_ldap_result( op, rs );
 335                 goto cleanup;
 336         }
 337
 338         /* check for referrals */
 339         if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 340                 goto cleanup;
 341         }
 342
 343         rs->sr_err = slap_mods_obsolete_check( op, op->orm_modlist,
 344                 &rs->sr_text, textbuf, textlen );
 345         if ( rs->sr_err != LDAP_SUCCESS ) {
 346                 send_ldap_result( op, rs );
 347                 goto cleanup;
 348         }
 349
 350         /* check for modify/increment support */
 351         if ( op->orm_increment && !SLAP_INCREMENT( op->o_bd ) ) {
 352                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 353                         "modify/increment not supported in context" );
 354         }
 355
 356         /*
 357          * do the modify if 1 && (2 || 3)
 358          * 1) there is a modify function implemented in this backend;
 359          * 2) this backend is master for what it holds;
 360          * 3) it's a replica and the dn supplied is the update_ndn.
 361          */
 362         if ( op->o_bd->be_modify ) {
 363                 /* do the update here */
 364                 int repl_user = be_isupdate( op );
 365
 366                 /*
 367                  * Multimaster slapd does not have to check for replicator dn
 368                  * because it accepts each modify request
 369                  */
 370                 if ( !SLAP_SINGLE_SHADOW(op->o_bd) || repl_user ) {
 371                         int update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 372                         slap_callback cb = { NULL, slap_replog_cb, NULL, NULL };
 373
 374                         op->o_bd = op_be;
 375
 376                         if ( !update ) {
 377                                 rs->sr_err = slap_mods_no_user_mod_check( op, op->orm_modlist,
 378                                         &rs->sr_text, textbuf, textlen );
 379                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 380                                         send_ldap_result( op, rs );
 381                                         goto cleanup;
 382                                 }
 383                         }
 384
 385                         if ( !repl_user ) {
 386                                 /* but multimaster slapd logs only the ones
 387                                  * not from a replicator user */
 388                                 cb.sc_next = op->o_callback;
 389                                 op->o_callback = &cb;
 390                         }
 391                         op->o_bd->be_modify( op, rs );
 392
 393                 } else { /* send a referral */
 394                         BerVarray defref = op->o_bd->be_update_refs
 395                                 ? op->o_bd->be_update_refs : default_referral;
 396                         if ( defref != NULL ) {
 397                                 rs->sr_ref = referral_rewrite( defref,
 398                                         NULL, &op->o_req_dn,
 399                                         LDAP_SCOPE_DEFAULT );
 400                                 if ( rs->sr_ref == NULL ) {
 401                                         /* FIXME: must duplicate, because
 402                                          * overlays may muck with it */
 403                                         rs->sr_ref = defref;
 404                                 }
 405                                 rs->sr_err = LDAP_REFERRAL;
 406                                 send_ldap_result( op, rs );
 407                                 if ( rs->sr_ref != defref ) {
 408                                         ber_bvarray_free( rs->sr_ref );
 409                                 }
 410
 411                         } else {
 412                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 413                                         "shadow context; no update referral" );
 414                         }
 415                 }
 416
 417         } else {
 418                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 419                     "operation not supported within namingContext" );
 420         }
 421
 422 cleanup:;
 423         op->o_bd = bd;
 424         return rs->sr_err;
 425 }
 426
 427 /*
 428  * Obsolete constraint checking.
 429  */
 430 int
 431 slap_mods_obsolete_check(
 432         Operation *op,
 433         Modifications *ml,
 434         const char **text,
 435         char *textbuf,
 436         size_t textlen )
 437 {
 438         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 439
 440         for ( ; ml != NULL; ml = ml->sml_next ) {
 441                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 442                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 443                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 444                                         ml->sml_values != NULL ))
 445                 {
 446                         /*
 447                          * attribute is obsolete,
 448                          * only allow replace/delete with no values
 449                          */
 450                         snprintf( textbuf, textlen,
 451                                 "%s: attribute is obsolete",
 452                                 ml->sml_type.bv_val );
 453                         *text = textbuf;
 454                         return LDAP_CONSTRAINT_VIOLATION;
 455                 }
 456         }
 457
 458         return LDAP_SUCCESS;
 459 }
 460
 461 /*
 462  * No-user-modification constraint checking.
 463  */
 464 int
 465 slap_mods_no_user_mod_check(
 466         Operation *op,
 467         Modifications *ml,
 468         const char **text,
 469         char *textbuf,
 470         size_t textlen )
 471 {
 472         for ( ; ml != NULL; ml = ml->sml_next ) {
 473                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) {
 474                         continue;
 475                 }
 476
 477                 if ( get_manageDIT( op ) ) {
 478                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 479                                 ml->sml_flags |= SLAP_MOD_MANAGING;
 480                                 continue;
 481                         }
 482
 483                         /* attribute not manageable */
 484                         snprintf( textbuf, textlen,
 485                                 "%s: no-user-modification attribute not manageable",
 486                                 ml->sml_type.bv_val );
 487
 488                 } else {
 489                         /* user modification disallowed */
 490                         snprintf( textbuf, textlen,
 491                                 "%s: no user modification allowed",
 492                                 ml->sml_type.bv_val );
 493                 }
 494
 495                 *text = textbuf;
 496                 return LDAP_CONSTRAINT_VIOLATION;
 497         }
 498
 499         return LDAP_SUCCESS;
 500 }
 501
 502 int
 503 slap_mods_no_repl_user_mod_check(
 504         Operation *op,
 505         Modifications *ml,
 506         const char **text,
 507         char *textbuf,
 508         size_t textlen )
 509 {
 510         Modifications *mods;
 511         Modifications *modp;
 512
 513         for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
 514                 assert( mods->sml_op == LDAP_MOD_ADD );
 515
 516                 /* check doesn't already appear */
 517                 for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
 518                         if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
 519                                 snprintf( textbuf, textlen,
 520                                         "attribute '%s' provided more than once",
 521                                         mods->sml_desc->ad_cname.bv_val );
 522                                 *text = textbuf;
 523                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 524                         }
 525                 }
 526         }
 527
 528         return LDAP_SUCCESS;
 529 }
 530
 531 /*
 532  * Do basic attribute type checking and syntax validation.
 533  */
 534 int slap_mods_check(
 535         Modifications *ml,
 536         const char **text,
 537         char *textbuf,
 538         size_t textlen,
 539         void *ctx )
 540 {
 541         int rc;
 542
 543         for( ; ml != NULL; ml = ml->sml_next ) {
 544                 AttributeDescription *ad = NULL;
 545
 546                 /* convert to attribute description */
 547                 if ( ml->sml_desc == NULL ) {
 548                         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 549                         if( rc != LDAP_SUCCESS ) {
 550                                 snprintf( textbuf, textlen, "%s: %s",
 551                                         ml->sml_type.bv_val, *text );
 552                                 *text = textbuf;
 553                                 return rc;
 554                         }
 555                 }
 556
 557                 ad = ml->sml_desc;
 558
 559                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 560                         && !slap_ad_is_binary( ad ))
 561                 {
 562                         /* attribute requires binary transfer */
 563                         snprintf( textbuf, textlen,
 564                                 "%s: requires ;binary transfer",
 565                                 ml->sml_type.bv_val );
 566                         *text = textbuf;
 567                         return LDAP_UNDEFINED_TYPE;
 568                 }
 569
 570                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 571                         && slap_ad_is_binary( ad ))
 572                 {
 573                         /* attribute does not require binary transfer */
 574                         snprintf( textbuf, textlen,
 575                                 "%s: disallows ;binary transfer",
 576                                 ml->sml_type.bv_val );
 577                         *text = textbuf;
 578                         return LDAP_UNDEFINED_TYPE;
 579                 }
 580
 581                 if( slap_ad_is_tag_range( ad )) {
 582                         /* attribute requires binary transfer */
 583                         snprintf( textbuf, textlen,
 584                                 "%s: inappropriate use of tag range option",
 585                                 ml->sml_type.bv_val );
 586                         *text = textbuf;
 587                         return LDAP_UNDEFINED_TYPE;
 588                 }
 589
 590 #if 0
 591                 if ( is_at_obsolete( ad->ad_type ) &&
 592                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 593                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 594                                         ml->sml_values != NULL ))
 595                 {
 596                         /*
 597                          * attribute is obsolete,
 598                          * only allow replace/delete with no values
 599                          */
 600                         snprintf( textbuf, textlen,
 601                                 "%s: attribute is obsolete",
 602                                 ml->sml_type.bv_val );
 603                         *text = textbuf;
 604                         return LDAP_CONSTRAINT_VIOLATION;
 605                 }
 606 #endif
 607
 608                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 609 #ifdef SLAPD_REAL_SYNTAX
 610                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 611 #endif
 612                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 613                 {
 614                         /*
 615                          * attribute values must be INTEGER or REAL
 616                          */
 617                         snprintf( textbuf, textlen,
 618                                 "%s: attribute syntax inappropriate for increment",
 619                                 ml->sml_type.bv_val );
 620                         *text = textbuf;
 621                         return LDAP_CONSTRAINT_VIOLATION;
 622                 }
 623
 624                 /*
 625                  * check values
 626                  */
 627                 if( ml->sml_values != NULL ) {
 628                         ber_len_t nvals;
 629                         slap_syntax_validate_func *validate =
 630                                 ad->ad_type->sat_syntax->ssyn_validate;
 631                         slap_syntax_transform_func *pretty =
 632                                 ad->ad_type->sat_syntax->ssyn_pretty;
 633
 634                         if( !pretty && !validate ) {
 635                                 *text = "no validator for syntax";
 636                                 snprintf( textbuf, textlen,
 637                                         "%s: no validator for syntax %s",
 638                                         ml->sml_type.bv_val,
 639                                         ad->ad_type->sat_syntax->ssyn_oid );
 640                                 *text = textbuf;
 641                                 return LDAP_INVALID_SYNTAX;
 642                         }
 643
 644                         /*
 645                          * check that each value is valid per syntax
 646                          *      and pretty if appropriate
 647                          */
 648                         for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 649                                 struct berval pval;
 650
 651                                 if ( pretty ) {
 652 #ifdef SLAP_ORDERED_PRETTYNORM
 653                                         rc = ordered_value_pretty( ad,
 654                                                 &ml->sml_values[nvals], &pval, ctx );
 655 #else /* ! SLAP_ORDERED_PRETTYNORM */
 656                                         rc = pretty( ad->ad_type->sat_syntax,
 657                                                 &ml->sml_values[nvals], &pval, ctx );
 658 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 659                                 } else {
 660 #ifdef SLAP_ORDERED_PRETTYNORM
 661                                         rc = ordered_value_validate( ad,
 662                                                 &ml->sml_values[nvals], ml->sml_op );
 663 #else /* ! SLAP_ORDERED_PRETTYNORM */
 664                                         rc = validate( ad->ad_type->sat_syntax,
 665                                                 &ml->sml_values[nvals] );
 666 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 667                                 }
 668
 669                                 if( rc != 0 ) {
 670                                         snprintf( textbuf, textlen,
 671                                                 "%s: value #%ld invalid per syntax",
 672                                                 ml->sml_type.bv_val, (long) nvals );
 673                                         *text = textbuf;
 674                                         return LDAP_INVALID_SYNTAX;
 675                                 }
 676
 677                                 if( pretty ) {
 678                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 679                                         ml->sml_values[nvals] = pval;
 680                                 }
 681                         }
 682
 683                         /*
 684                          * a rough single value check... an additional check is needed
 685                          * to catch add of single value to existing single valued attribute
 686                          */
 687                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 688                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 689                         {
 690                                 snprintf( textbuf, textlen,
 691                                         "%s: multiple values provided",
 692                                         ml->sml_type.bv_val );
 693                                 *text = textbuf;
 694                                 return LDAP_CONSTRAINT_VIOLATION;
 695                         }
 696
 697                         /* if the type has a normalizer, generate the
 698                          * normalized values. otherwise leave them NULL.
 699                          *
 700                          * this is different from the rule for attributes
 701                          * in an entry - in an attribute list, the normalized
 702                          * value is set equal to the non-normalized value
 703                          * when there is no normalizer.
 704                          */
 705                         if( nvals && ad->ad_type->sat_equality &&
 706                                 ad->ad_type->sat_equality->smr_normalize )
 707                         {
 708                                 ml->sml_nvalues = ber_memalloc_x(
 709                                         (nvals+1)*sizeof(struct berval), ctx );
 710
 711                                 for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 712 #ifdef SLAP_ORDERED_PRETTYNORM
 713                                         rc = ordered_value_normalize(
 714                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 715                                                 ad,
 716                                                 ad->ad_type->sat_equality,
 717                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 718 #else /* ! SLAP_ORDERED_PRETTYNORM */
 719                                         rc = ad->ad_type->sat_equality->smr_normalize(
 720                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 721                                                 ad->ad_type->sat_syntax,
 722                                                 ad->ad_type->sat_equality,
 723                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 724 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 725                                         if ( rc ) {
 726                                                 Debug( LDAP_DEBUG_ANY,
 727                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 728                                                         rc, 0, 0 );
 729                                                 snprintf( textbuf, textlen,
 730                                                         "%s: value #%ld normalization failed",
 731                                                         ml->sml_type.bv_val, (long) nvals );
 732                                                 *text = textbuf;
 733                                                 return rc;
 734                                         }
 735                                 }
 736
 737                                 BER_BVZERO( &ml->sml_nvalues[nvals] );
 738                         }
 739
 740                         /* check for duplicates, but ignore Deletes.
 741                          */
 742                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 743                                 int             i, j, rc, match;
 744                                 MatchingRule *mr = ad->ad_type->sat_equality;
 745
 746                                 for ( i = 1; i < nvals ; i++ ) {
 747                                         /* test asserted values against themselves */
 748                                         for( j = 0; j < i; j++ ) {
 749                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 750                                                         SLAP_MR_EQUALITY
 751                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 752                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 753                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 754                                                         ml->sml_nvalues
 755                                                                 ? &ml->sml_nvalues[i]
 756                                                                 : &ml->sml_values[i],
 757                                                         ml->sml_nvalues
 758                                                                 ? &ml->sml_nvalues[j]
 759                                                                 : &ml->sml_values[j],
 760                                                         text );
 761                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 762                                                         /* value exists already */
 763                                                         snprintf( textbuf, textlen,
 764                                                                 "%s: value #%d provided more than once",
 765                                                                 ml->sml_desc->ad_cname.bv_val, j );
 766                                                         *text = textbuf;
 767                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 768
 769                                                 } else if ( rc != LDAP_SUCCESS ) {
 770                                                         return rc;
 771                                                 }
 772                                         }
 773                                 }
 774                         }
 775
 776                 }
 777         }
 778
 779         return LDAP_SUCCESS;
 780 }
 781
 782 /* Enter with bv->bv_len = sizeof buffer, returns with
 783  * actual length of string
 784  */
 785 void slap_timestamp( time_t *tm, struct berval *bv )
 786 {
 787         struct tm *ltm;
 788 #ifdef HAVE_GMTIME_R
 789         struct tm ltm_buf;
 790
 791         ltm = gmtime_r( tm, &ltm_buf );
 792 #else
 793         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 794         ltm = gmtime( tm );
 795 #endif
 796
 797         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 798
 799 #ifndef HAVE_GMTIME_R
 800         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 801 #endif
 802 }
 803
 804 /* Called for all modify and modrdn ops. If the current op was replicated
 805  * from elsewhere, all of the attrs should already be present.
 806  */
 807 void slap_mods_opattrs(
 808         Operation *op,
 809         Modifications **modsp,
 810         int manage_ctxcsn )
 811 {
 812         struct berval name, timestamp, csn = BER_BVNULL;
 813         struct berval nname;
 814         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 815         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 816         Modifications *mod, **modtail, *modlast;
 817         int gotcsn = 0, gotmname = 0, gotmtime = 0;
 818
 819         if ( SLAP_LASTMOD( op->o_bd ) ) {
 820                 char *ptr;
 821                 timestamp.bv_val = timebuf;
 822                 for ( modtail = modsp; *modtail; modtail = &(*modtail)->sml_next ) {
 823                         if ( (*modtail)->sml_op != LDAP_MOD_ADD &&
 824                                 (*modtail)->sml_op != LDAP_MOD_REPLACE ) continue;
 825                         if ( (*modtail)->sml_desc == slap_schema.si_ad_entryCSN ) {
 826                                 csn = (*modtail)->sml_values[0];
 827                                 gotcsn = 1;
 828                         } else
 829                         if ( (*modtail)->sml_desc == slap_schema.si_ad_modifiersName ) {
 830                                 gotmname = 1;
 831                         } else
 832                         if ( (*modtail)->sml_desc == slap_schema.si_ad_modifyTimestamp ) {
 833                                 gotmtime = 1;
 834                         }
 835                 }
 836                 if ( BER_BVISEMPTY( &op->o_csn )) {
 837                         if ( !gotcsn ) {
 838                                 csn.bv_val = csnbuf;
 839                                 csn.bv_len = sizeof( csnbuf );
 840                                 slap_get_csn( op, &csn, manage_ctxcsn );
 841                         } else {
 842                                 if ( manage_ctxcsn )
 843                                         slap_queue_csn( op, &csn );
 844                         }
 845                 } else {
 846                         csn = op->o_csn;
 847                 }
 848                 ptr = ber_bvchr( &csn, '#' );
 849                 if ( ptr ) {
 850                         timestamp.bv_len = ptr - csn.bv_val;
 851                         if ( timestamp.bv_len >= sizeof( timebuf ))     /* ?!? */
 852                                 timestamp.bv_len = sizeof( timebuf ) - 1;
 853                         AC_MEMCPY( timebuf, csn.bv_val, timestamp.bv_len );
 854                         timebuf[timestamp.bv_len] = '\0';
 855                 } else {
 856                         time_t now = slap_get_time();
 857
 858                         timestamp.bv_len = sizeof(timebuf);
 859
 860                         slap_timestamp( &now, &timestamp );
 861                 }
 862
 863                 if ( BER_BVISEMPTY( &op->o_dn ) ) {
 864                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 865                         nname = name;
 866                 } else {
 867                         name = op->o_dn;
 868                         nname = op->o_ndn;
 869                 }
 870
 871                 if ( !gotcsn ) {
 872                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 873                         mod->sml_op = LDAP_MOD_REPLACE;
 874                         mod->sml_flags = SLAP_MOD_INTERNAL;
 875                         mod->sml_next = NULL;
 876                         BER_BVZERO( &mod->sml_type );
 877                         mod->sml_desc = slap_schema.si_ad_entryCSN;
 878                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 879                         ber_dupbv( &mod->sml_values[0], &csn );
 880                         BER_BVZERO( &mod->sml_values[1] );
 881                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 882                         mod->sml_nvalues = NULL;
 883                         *modtail = mod;
 884                         modlast = mod;
 885                         modtail = &mod->sml_next;
 886                 }
 887
 888                 if ( !gotmname ) {
 889                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 890                         mod->sml_op = LDAP_MOD_REPLACE;
 891                         mod->sml_flags = SLAP_MOD_INTERNAL;
 892                         mod->sml_next = NULL;
 893                         BER_BVZERO( &mod->sml_type );
 894                         mod->sml_desc = slap_schema.si_ad_modifiersName;
 895                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 896                         ber_dupbv( &mod->sml_values[0], &name );
 897                         BER_BVZERO( &mod->sml_values[1] );
 898                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 899                         mod->sml_nvalues =
 900                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 901                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 902                         BER_BVZERO( &mod->sml_nvalues[1] );
 903                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 904                         *modtail = mod;
 905                         modtail = &mod->sml_next;
 906                 }
 907
 908                 if ( !gotmtime ) {
 909                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 910                         mod->sml_op = LDAP_MOD_REPLACE;
 911                         mod->sml_flags = SLAP_MOD_INTERNAL;
 912                         mod->sml_next = NULL;
 913                         BER_BVZERO( &mod->sml_type );
 914                         mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 915                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 916                         ber_dupbv( &mod->sml_values[0], &timestamp );
 917                         BER_BVZERO( &mod->sml_values[1] );
 918                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 919                         mod->sml_nvalues = NULL;
 920                         *modtail = mod;
 921                         modtail = &mod->sml_next;
 922                 }
 923         }
 924 }
 925