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
 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,
 188                 &rs->sr_text, 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         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 204         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 205         if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist, 1 );
 206
 207         return rs->sr_err;
 208 }
 209
 210 int
 211 fe_op_modify( Operation *op, SlapReply *rs )
 212 {
 213 #ifdef LDAP_DEBUG
 214         Modifications   *tmp;
 215 #endif
 216         int             manageDSAit;
 217         BackendDB       *op_be, *bd = op->o_bd;
 218         char            textbuf[ SLAP_TEXT_BUFLEN ];
 219         size_t          textlen = sizeof( textbuf );
 220
 221         if ( BER_BVISEMPTY( &op->o_req_ndn ) ) {
 222                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 223
 224                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 225                         "modify upon the root DSE not supported" );
 226                 goto cleanup;
 227
 228         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 229                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 230
 231                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 232                         "modification of subschema subentry not supported" );
 233                 goto cleanup;
 234         }
 235
 236 #ifdef LDAP_DEBUG
 237         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 238
 239         for ( tmp = op->orm_modlist; tmp != NULL; tmp = tmp->sml_next ) {
 240                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 241                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 242                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 243                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 244                                         "replace")), tmp->sml_type.bv_val, 0 );
 245
 246                 if ( tmp->sml_values == NULL ) {
 247                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 248                            "\t\tno values", NULL, NULL );
 249                 } else if ( BER_BVISNULL( &tmp->sml_values[ 0 ] ) ) {
 250                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 251                            "\t\tzero values", NULL, NULL );
 252                 } else if ( BER_BVISNULL( &tmp->sml_values[ 1 ] ) ) {
 253                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 254                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 255                 } else {
 256                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 257                            "\t\tmultiple values", NULL, NULL );
 258                 }
 259         }
 260
 261         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 262                 char abuf[BUFSIZ/2], *ptr = abuf;
 263                 int len = 0;
 264
 265                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 266                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 267
 268                 for ( tmp = op->orm_modlist; tmp != NULL; tmp = tmp->sml_next ) {
 269                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 270                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 271                                     op->o_log_prefix, abuf, 0, 0, 0 );
 272
 273                                 len = 0;
 274                                 ptr = abuf;
 275
 276                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 277                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 278                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 279                                         continue;
 280                                 }
 281                         }
 282                         if (len) {
 283                                 *ptr++ = ' ';
 284                                 len++;
 285                         }
 286                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 287                         len += tmp->sml_type.bv_len;
 288                 }
 289                 if (len) {
 290                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 291                                 op->o_log_prefix, abuf, 0, 0, 0 );
 292                 }
 293         }
 294 #endif  /* LDAP_DEBUG */
 295
 296         manageDSAit = get_manageDSAit( op );
 297
 298         /*
 299          * We could be serving multiple database backends.  Select the
 300          * appropriate one, or send a referral to our "referral server"
 301          * if we don't hold it.
 302          */
 303         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 304         if ( op->o_bd == NULL ) {
 305                 op->o_bd = bd;
 306                 rs->sr_ref = referral_rewrite( default_referral,
 307                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 308                 if ( !rs->sr_ref ) {
 309                         rs->sr_ref = default_referral;
 310                 }
 311
 312                 if ( rs->sr_ref != NULL ) {
 313                         rs->sr_err = LDAP_REFERRAL;
 314                         send_ldap_result( op, rs );
 315
 316                         if ( rs->sr_ref != default_referral ) {
 317                                 ber_bvarray_free( rs->sr_ref );
 318                         }
 319
 320                 } else {
 321                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 322                                 "no global superior knowledge" );
 323                 }
 324                 goto cleanup;
 325         }
 326
 327         /* If we've got a glued backend, check the real backend */
 328         op_be = op->o_bd;
 329         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 330                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 331         }
 332
 333         /* check restrictions */
 334         if ( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 335                 send_ldap_result( op, rs );
 336                 goto cleanup;
 337         }
 338
 339         /* check for referrals */
 340         if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 341                 goto cleanup;
 342         }
 343
 344         rs->sr_err = slap_mods_obsolete_check( op, op->orm_modlist,
 345                 &rs->sr_text, textbuf, textlen );
 346         if ( rs->sr_err != LDAP_SUCCESS ) {
 347                 send_ldap_result( op, rs );
 348                 goto cleanup;
 349         }
 350
 351         /* check for modify/increment support */
 352         if ( op->orm_increment && !SLAP_INCREMENT( op->o_bd ) ) {
 353                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 354                         "modify/increment not supported in context" );
 355         }
 356
 357         /*
 358          * do the modify if 1 && (2 || 3)
 359          * 1) there is a modify function implemented in this backend;
 360          * 2) this backend is master for what it holds;
 361          * 3) it's a replica and the dn supplied is the update_ndn.
 362          */
 363         if ( op->o_bd->be_modify ) {
 364                 /* do the update here */
 365                 int repl_user = be_isupdate( op );
 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                 {
 372                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 373                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 374
 375                         op->o_bd = op_be;
 376
 377                         if ( !update ) {
 378                                 rs->sr_err = slap_mods_no_user_mod_check( op, op->orm_modlist,
 379                                         &rs->sr_text, textbuf, textlen );
 380                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 381                                         send_ldap_result( op, rs );
 382                                         goto cleanup;
 383                                 }
 384                         }
 385
 386                         if ( !repl_user )
 387                         {
 388                                 /* but multimaster slapd logs only the ones
 389                                  * not from a replicator user */
 390                                 cb.sc_next = op->o_callback;
 391                                 op->o_callback = &cb;
 392                         }
 393                         op->o_bd->be_modify( op, rs );
 394
 395                 /* send a referral */
 396                 } else {
 397                         BerVarray defref = op->o_bd->be_update_refs
 398                                 ? op->o_bd->be_update_refs : default_referral;
 399                         if ( defref != NULL ) {
 400                                 rs->sr_ref = referral_rewrite( defref,
 401                                         NULL, &op->o_req_dn,
 402                                         LDAP_SCOPE_DEFAULT );
 403                                 if ( rs->sr_ref == NULL ) {
 404                                         /* FIXME: must duplicate, because
 405                                          * overlays may muck with it */
 406                                         rs->sr_ref = defref;
 407                                 }
 408                                 rs->sr_err = LDAP_REFERRAL;
 409                                 send_ldap_result( op, rs );
 410                                 if ( rs->sr_ref != defref ) {
 411                                         ber_bvarray_free( rs->sr_ref );
 412                                 }
 413
 414                         } else {
 415                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 416                                         "shadow context; no update referral" );
 417                         }
 418                 }
 419         } else {
 420                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 421                     "operation not supported within namingContext" );
 422         }
 423
 424 cleanup:;
 425         op->o_bd = bd;
 426         return rs->sr_err;
 427 }
 428
 429 /*
 430  * Obsolete constraint checking.
 431  */
 432 int
 433 slap_mods_obsolete_check(
 434         Operation *op,
 435         Modifications *ml,
 436         const char **text,
 437         char *textbuf,
 438         size_t textlen )
 439 {
 440         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 441
 442         for ( ; ml != NULL; ml = ml->sml_next ) {
 443                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 444                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 445                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 446                                         ml->sml_values != NULL ))
 447                 {
 448                         /*
 449                          * attribute is obsolete,
 450                          * only allow replace/delete with no values
 451                          */
 452                         snprintf( textbuf, textlen,
 453                                 "%s: attribute is obsolete",
 454                                 ml->sml_type.bv_val );
 455                         *text = textbuf;
 456                         return LDAP_CONSTRAINT_VIOLATION;
 457                 }
 458         }
 459
 460         return LDAP_SUCCESS;
 461 }
 462
 463 /*
 464  * No-user-modification constraint checking.
 465  */
 466 int
 467 slap_mods_no_user_mod_check(
 468         Operation *op,
 469         Modifications *ml,
 470         const char **text,
 471         char *textbuf,
 472         size_t textlen )
 473 {
 474         for ( ; ml != NULL; ml = ml->sml_next ) {
 475                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) {
 476                         continue;
 477                 }
 478
 479                 if ( get_manageDIT( op ) ) {
 480                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 481                                 ml->sml_flags |= SLAP_MOD_MANAGING;
 482                                 continue;
 483                         }
 484
 485                         /* attribute not manageable */
 486                         snprintf( textbuf, textlen,
 487                                 "%s: no-user-modification attribute not manageable",
 488                                 ml->sml_type.bv_val );
 489
 490                 } else {
 491                         /* user modification disallowed */
 492                         snprintf( textbuf, textlen,
 493                                 "%s: no user modification allowed",
 494                                 ml->sml_type.bv_val );
 495                 }
 496
 497                 *text = textbuf;
 498                 return LDAP_CONSTRAINT_VIOLATION;
 499         }
 500
 501         return LDAP_SUCCESS;
 502 }
 503
 504 int
 505 slap_mods_no_repl_user_mod_check(
 506         Operation *op,
 507         Modifications *ml,
 508         const char **text,
 509         char *textbuf,
 510         size_t textlen )
 511 {
 512         Modifications *mods;
 513         Modifications *modp;
 514
 515         for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
 516                 assert( mods->sml_op == LDAP_MOD_ADD );
 517
 518                 /* check doesn't already appear */
 519                 for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
 520                         if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
 521                                 snprintf( textbuf, textlen,
 522                                         "attribute '%s' provided more than once",
 523                                         mods->sml_desc->ad_cname.bv_val );
 524                                 *text = textbuf;
 525                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 526                         }
 527                 }
 528         }
 529
 530         return LDAP_SUCCESS;
 531 }
 532
 533 /*
 534  * Do basic attribute type checking and syntax validation.
 535  */
 536 int slap_mods_check(
 537         Modifications *ml,
 538         const char **text,
 539         char *textbuf,
 540         size_t textlen,
 541         void *ctx )
 542 {
 543         int rc;
 544
 545         for( ; ml != NULL; ml = ml->sml_next ) {
 546                 AttributeDescription *ad = NULL;
 547
 548                 /* convert to attribute description */
 549                 if ( ml->sml_desc == NULL ) {
 550                         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 551                         if( rc != LDAP_SUCCESS ) {
 552                                 snprintf( textbuf, textlen, "%s: %s",
 553                                         ml->sml_type.bv_val, *text );
 554                                 *text = textbuf;
 555                                 return rc;
 556                         }
 557                 }
 558
 559                 ad = ml->sml_desc;
 560
 561                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 562                         && !slap_ad_is_binary( ad ))
 563                 {
 564                         /* attribute requires binary transfer */
 565                         snprintf( textbuf, textlen,
 566                                 "%s: requires ;binary transfer",
 567                                 ml->sml_type.bv_val );
 568                         *text = textbuf;
 569                         return LDAP_UNDEFINED_TYPE;
 570                 }
 571
 572                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 573                         && slap_ad_is_binary( ad ))
 574                 {
 575                         /* attribute does not require binary transfer */
 576                         snprintf( textbuf, textlen,
 577                                 "%s: disallows ;binary transfer",
 578                                 ml->sml_type.bv_val );
 579                         *text = textbuf;
 580                         return LDAP_UNDEFINED_TYPE;
 581                 }
 582
 583                 if( slap_ad_is_tag_range( ad )) {
 584                         /* attribute requires binary transfer */
 585                         snprintf( textbuf, textlen,
 586                                 "%s: inappropriate use of tag range option",
 587                                 ml->sml_type.bv_val );
 588                         *text = textbuf;
 589                         return LDAP_UNDEFINED_TYPE;
 590                 }
 591
 592 #if 0
 593                 if ( is_at_obsolete( ad->ad_type ) &&
 594                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 595                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 596                                         ml->sml_values != NULL ))
 597                 {
 598                         /*
 599                          * attribute is obsolete,
 600                          * only allow replace/delete with no values
 601                          */
 602                         snprintf( textbuf, textlen,
 603                                 "%s: attribute is obsolete",
 604                                 ml->sml_type.bv_val );
 605                         *text = textbuf;
 606                         return LDAP_CONSTRAINT_VIOLATION;
 607                 }
 608 #endif
 609
 610                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 611 #ifdef SLAPD_REAL_SYNTAX
 612                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 613 #endif
 614                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 615                 {
 616                         /*
 617                          * attribute values must be INTEGER or REAL
 618                          */
 619                         snprintf( textbuf, textlen,
 620                                 "%s: attribute syntax inappropriate for increment",
 621                                 ml->sml_type.bv_val );
 622                         *text = textbuf;
 623                         return LDAP_CONSTRAINT_VIOLATION;
 624                 }
 625
 626                 /*
 627                  * check values
 628                  */
 629                 if( ml->sml_values != NULL ) {
 630                         ber_len_t nvals;
 631                         slap_syntax_validate_func *validate =
 632                                 ad->ad_type->sat_syntax->ssyn_validate;
 633                         slap_syntax_transform_func *pretty =
 634                                 ad->ad_type->sat_syntax->ssyn_pretty;
 635
 636                         if( !pretty && !validate ) {
 637                                 *text = "no validator for syntax";
 638                                 snprintf( textbuf, textlen,
 639                                         "%s: no validator for syntax %s",
 640                                         ml->sml_type.bv_val,
 641                                         ad->ad_type->sat_syntax->ssyn_oid );
 642                                 *text = textbuf;
 643                                 return LDAP_INVALID_SYNTAX;
 644                         }
 645
 646                         /*
 647                          * check that each value is valid per syntax
 648                          *      and pretty if appropriate
 649                          */
 650                         for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 651                                 struct berval pval;
 652
 653                                 if ( pretty ) {
 654 #ifdef SLAP_ORDERED_PRETTYNORM
 655                                         rc = ordered_value_pretty( ad,
 656                                                 &ml->sml_values[nvals], &pval, ctx );
 657 #else /* ! SLAP_ORDERED_PRETTYNORM */
 658                                         rc = pretty( ad->ad_type->sat_syntax,
 659                                                 &ml->sml_values[nvals], &pval, ctx );
 660 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 661                                 } else {
 662 #ifdef SLAP_ORDERED_PRETTYNORM
 663                                         rc = ordered_value_validate( ad,
 664                                                 &ml->sml_values[nvals], ml->sml_op );
 665 #else /* ! SLAP_ORDERED_PRETTYNORM */
 666                                         rc = validate( ad->ad_type->sat_syntax,
 667                                                 &ml->sml_values[nvals] );
 668 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 669                                 }
 670
 671                                 if( rc != 0 ) {
 672                                         snprintf( textbuf, textlen,
 673                                                 "%s: value #%ld invalid per syntax",
 674                                                 ml->sml_type.bv_val, (long) nvals );
 675                                         *text = textbuf;
 676                                         return LDAP_INVALID_SYNTAX;
 677                                 }
 678
 679                                 if( pretty ) {
 680                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 681                                         ml->sml_values[nvals] = pval;
 682                                 }
 683                         }
 684
 685                         /*
 686                          * a rough single value check... an additional check is needed
 687                          * to catch add of single value to existing single valued attribute
 688                          */
 689                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 690                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 691                         {
 692                                 snprintf( textbuf, textlen,
 693                                         "%s: multiple values provided",
 694                                         ml->sml_type.bv_val );
 695                                 *text = textbuf;
 696                                 return LDAP_CONSTRAINT_VIOLATION;
 697                         }
 698
 699                         /* if the type has a normalizer, generate the
 700                          * normalized values. otherwise leave them NULL.
 701                          *
 702                          * this is different from the rule for attributes
 703                          * in an entry - in an attribute list, the normalized
 704                          * value is set equal to the non-normalized value
 705                          * when there is no normalizer.
 706                          */
 707                         if( nvals && ad->ad_type->sat_equality &&
 708                                 ad->ad_type->sat_equality->smr_normalize )
 709                         {
 710                                 ml->sml_nvalues = ber_memalloc_x(
 711                                         (nvals+1)*sizeof(struct berval), ctx );
 712
 713                                 for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 714 #ifdef SLAP_ORDERED_PRETTYNORM
 715                                         rc = ordered_value_normalize(
 716                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 717                                                 ad,
 718                                                 ad->ad_type->sat_equality,
 719                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 720 #else /* ! SLAP_ORDERED_PRETTYNORM */
 721                                         rc = ad->ad_type->sat_equality->smr_normalize(
 722                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 723                                                 ad->ad_type->sat_syntax,
 724                                                 ad->ad_type->sat_equality,
 725                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 726 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 727                                         if ( rc ) {
 728                                                 Debug( LDAP_DEBUG_ANY,
 729                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 730                                                         rc, 0, 0 );
 731                                                 snprintf( textbuf, textlen,
 732                                                         "%s: value #%ld normalization failed",
 733                                                         ml->sml_type.bv_val, (long) nvals );
 734                                                 *text = textbuf;
 735                                                 return rc;
 736                                         }
 737                                 }
 738
 739                                 BER_BVZERO( &ml->sml_nvalues[nvals] );
 740                         }
 741
 742                         /* check for duplicates, but ignore Deletes.
 743                          */
 744                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 745                                 int             i, j, rc, match;
 746                                 MatchingRule *mr = ad->ad_type->sat_equality;
 747
 748                                 for ( i = 1; i < nvals ; i++ ) {
 749                                         /* test asserted values against themselves */
 750                                         for( j = 0; j < i; j++ ) {
 751                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 752                                                         SLAP_MR_EQUALITY
 753                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 754                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 755                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 756                                                         ml->sml_nvalues
 757                                                                 ? &ml->sml_nvalues[i]
 758                                                                 : &ml->sml_values[i],
 759                                                         ml->sml_nvalues
 760                                                                 ? &ml->sml_nvalues[j]
 761                                                                 : &ml->sml_values[j],
 762                                                         text );
 763                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 764                                                         /* value exists already */
 765                                                         snprintf( textbuf, textlen,
 766                                                                 "%s: value #%d provided more than once",
 767                                                                 ml->sml_desc->ad_cname.bv_val, j );
 768                                                         *text = textbuf;
 769                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 770
 771                                                 } else if ( rc != LDAP_SUCCESS ) {
 772                                                         return rc;
 773                                                 }
 774                                         }
 775                                 }
 776                         }
 777
 778                 }
 779         }
 780
 781         return LDAP_SUCCESS;
 782 }
 783
 784 /* Enter with bv->bv_len = sizeof buffer, returns with
 785  * actual length of string
 786  */
 787 void slap_timestamp( time_t *tm, struct berval *bv )
 788 {
 789         struct tm *ltm;
 790 #ifdef HAVE_GMTIME_R
 791         struct tm ltm_buf;
 792
 793         ltm = gmtime_r( tm, &ltm_buf );
 794 #else
 795         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 796         ltm = gmtime( tm );
 797 #endif
 798
 799         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 800
 801 #ifndef HAVE_GMTIME_R
 802         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 803 #endif
 804 }
 805
 806 /* Called for all modify and modrdn ops. If the current op was replicated
 807  * from elsewhere, all of the attrs should already be present.
 808  */
 809 void slap_mods_opattrs(
 810         Operation *op,
 811         Modifications **modsp,
 812         int manage_ctxcsn )
 813 {
 814         struct berval name, timestamp, csn = BER_BVNULL;
 815         struct berval nname;
 816         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 817         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 818         Modifications *mod, **modtail, *modlast;
 819         int gotcsn = 0, gotmname = 0, gotmtime = 0;
 820
 821         if ( SLAP_LASTMOD( op->o_bd ) ) {
 822                 char *ptr;
 823                 timestamp.bv_val = timebuf;
 824                 for ( modtail = modsp; *modtail; modtail = &(*modtail)->sml_next ) {
 825                         if ( (*modtail)->sml_op != LDAP_MOD_ADD &&
 826                                 (*modtail)->sml_op != LDAP_MOD_REPLACE ) continue;
 827                         if ( (*modtail)->sml_desc == slap_schema.si_ad_entryCSN ) {
 828                                 csn = (*modtail)->sml_values[0];
 829                                 gotcsn = 1;
 830                         } else
 831                         if ( (*modtail)->sml_desc == slap_schema.si_ad_modifiersName ) {
 832                                 gotmname = 1;
 833                         } else
 834                         if ( (*modtail)->sml_desc == slap_schema.si_ad_modifyTimestamp ) {
 835                                 gotmtime = 1;
 836                         }
 837                 }
 838                 if ( BER_BVISEMPTY( &op->o_csn )) {
 839                         if ( !gotcsn ) {
 840                                 csn.bv_val = csnbuf;
 841                                 csn.bv_len = sizeof( csnbuf );
 842                                 slap_get_csn( op, &csn, manage_ctxcsn );
 843                         } else {
 844                                 if ( manage_ctxcsn )
 845                                         slap_queue_csn( op, &csn );
 846                         }
 847                 } else {
 848                         csn = op->o_csn;
 849                 }
 850                 ptr = ber_bvchr( &csn, '#' );
 851                 if ( ptr ) {
 852                         timestamp.bv_len = ptr - csn.bv_val;
 853                         if ( timestamp.bv_len >= sizeof( timebuf ))     /* ?!? */
 854                                 timestamp.bv_len = sizeof( timebuf ) - 1;
 855                         AC_MEMCPY( timebuf, csn.bv_val, timestamp.bv_len );
 856                         timebuf[timestamp.bv_len] = '\0';
 857                 } else {
 858                         time_t now = slap_get_time();
 859
 860                         timestamp.bv_len = sizeof(timebuf);
 861
 862                         slap_timestamp( &now, &timestamp );
 863                 }
 864
 865                 if ( BER_BVISEMPTY( &op->o_dn ) ) {
 866                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 867                         nname = name;
 868                 } else {
 869                         name = op->o_dn;
 870                         nname = op->o_ndn;
 871                 }
 872
 873                 if ( !gotcsn ) {
 874                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 875                         mod->sml_op = LDAP_MOD_REPLACE;
 876                         mod->sml_flags = SLAP_MOD_INTERNAL;
 877                         mod->sml_next = NULL;
 878                         BER_BVZERO( &mod->sml_type );
 879                         mod->sml_desc = slap_schema.si_ad_entryCSN;
 880                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 881                         ber_dupbv( &mod->sml_values[0], &csn );
 882                         BER_BVZERO( &mod->sml_values[1] );
 883                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 884                         mod->sml_nvalues = NULL;
 885                         *modtail = mod;
 886                         modlast = mod;
 887                         modtail = &mod->sml_next;
 888                 }
 889
 890                 if ( !gotmname ) {
 891                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 892                         mod->sml_op = LDAP_MOD_REPLACE;
 893                         mod->sml_flags = SLAP_MOD_INTERNAL;
 894                         mod->sml_next = NULL;
 895                         BER_BVZERO( &mod->sml_type );
 896                         mod->sml_desc = slap_schema.si_ad_modifiersName;
 897                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 898                         ber_dupbv( &mod->sml_values[0], &name );
 899                         BER_BVZERO( &mod->sml_values[1] );
 900                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 901                         mod->sml_nvalues =
 902                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 903                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 904                         BER_BVZERO( &mod->sml_nvalues[1] );
 905                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 906                         *modtail = mod;
 907                         modtail = &mod->sml_next;
 908                 }
 909
 910                 if ( !gotmtime ) {
 911                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 912                         mod->sml_op = LDAP_MOD_REPLACE;
 913                         mod->sml_flags = SLAP_MOD_INTERNAL;
 914                         mod->sml_next = NULL;
 915                         BER_BVZERO( &mod->sml_type );
 916                         mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 917                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 918                         ber_dupbv( &mod->sml_values[0], &timestamp );
 919                         BER_BVZERO( &mod->sml_values[1] );
 920                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 921                         mod->sml_nvalues = NULL;
 922                         *modtail = mod;
 923                         modtail = &mod->sml_next;
 924                 }
 925         }
 926 }
 927