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 1998-2007 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         Modifications   *modlist = op->orm_modlist;
 218         int             increment = op->orm_increment;
 219         BackendDB *op_be, *bd = op->o_bd;
 220         char            textbuf[ SLAP_TEXT_BUFLEN ];
 221         size_t          textlen = sizeof( textbuf );
 222
 223         if( BER_BVISEMPTY( &op->o_req_ndn ) ) {
 224                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 225
 226                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 227                         "modify upon the root DSE not supported" );
 228                 goto cleanup;
 229
 230         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 231                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 232
 233                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 234                         "modification of subschema subentry not supported" );
 235                 goto cleanup;
 236         }
 237
 238 #ifdef LDAP_DEBUG
 239         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 240
 241         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 242                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 243                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 244                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 245                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 246                                         "replace")), tmp->sml_type.bv_val, 0 );
 247
 248                 if ( tmp->sml_values == NULL ) {
 249                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 250                            "\t\tno values", NULL, NULL );
 251                 } else if ( BER_BVISNULL( &tmp->sml_values[ 0 ] ) ) {
 252                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 253                            "\t\tzero values", NULL, NULL );
 254                 } else if ( BER_BVISNULL( &tmp->sml_values[ 1 ] ) ) {
 255                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 256                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 257                 } else {
 258                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 259                            "\t\tmultiple values", NULL, NULL );
 260                 }
 261         }
 262
 263         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 264                 char abuf[BUFSIZ/2], *ptr = abuf;
 265                 int len = 0;
 266
 267                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 268                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 269
 270                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 271                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 272                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 273                                     op->o_log_prefix, abuf, 0, 0, 0 );
 274
 275                                 len = 0;
 276                                 ptr = abuf;
 277
 278                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 279                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 280                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 281                                         continue;
 282                                 }
 283                         }
 284                         if (len) {
 285                                 *ptr++ = ' ';
 286                                 len++;
 287                         }
 288                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 289                         len += tmp->sml_type.bv_len;
 290                 }
 291                 if (len) {
 292                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 293                                 op->o_log_prefix, abuf, 0, 0, 0 );
 294                 }
 295         }
 296 #endif  /* LDAP_DEBUG */
 297
 298         manageDSAit = get_manageDSAit( op );
 299
 300         /*
 301          * We could be serving multiple database backends.  Select the
 302          * appropriate one, or send a referral to our "referral server"
 303          * if we don't hold it.
 304          */
 305         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 306         if ( op->o_bd == NULL ) {
 307                 op->o_bd = bd;
 308                 rs->sr_ref = referral_rewrite( default_referral,
 309                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 310                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 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) ber_bvarray_free( rs->sr_ref );
 317                 } else {
 318                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 319                                 "no global superior knowledge" );
 320                 }
 321                 goto cleanup;
 322         }
 323
 324         /* If we've got a glued backend, check the real backend */
 325         op_be = op->o_bd;
 326         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 327                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 328         }
 329
 330         /* check restrictions */
 331         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 332                 send_ldap_result( op, rs );
 333                 goto cleanup;
 334         }
 335
 336         /* check for referrals */
 337         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 338                 goto cleanup;
 339         }
 340
 341         rs->sr_err = slap_mods_obsolete_check( op, modlist,
 342                 &rs->sr_text, textbuf, textlen );
 343         if ( rs->sr_err != LDAP_SUCCESS ) {
 344                 send_ldap_result( op, rs );
 345                 goto cleanup;
 346         }
 347
 348         /* check for modify/increment support */
 349         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 350                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 351                         "modify/increment not supported in context" );
 352         }
 353
 354         /*
 355          * do the modify if 1 && (2 || 3)
 356          * 1) there is a modify function implemented in this backend;
 357          * 2) this backend is master for what it holds;
 358          * 3) it's a replica and the dn supplied is the update_ndn.
 359          */
 360         if ( op->o_bd->be_modify ) {
 361                 /* do the update here */
 362                 int repl_user = be_isupdate( op );
 363
 364                 /* Multimaster slapd does not have to check for replicator dn
 365                  * because it accepts each modify request
 366                  */
 367 #ifndef SLAPD_MULTIMASTER
 368                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 369 #endif
 370                 {
 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, 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                         op->orm_modlist = modlist;
 386 #ifdef SLAPD_MULTIMASTER
 387                         if ( !repl_user )
 388 #endif
 389                         {
 390                                 /* but multimaster slapd logs only the ones
 391                                  * not from a replicator user */
 392                                 cb.sc_next = op->o_callback;
 393                                 op->o_callback = &cb;
 394                         }
 395                         op->o_bd->be_modify( op, rs );
 396
 397 #ifndef SLAPD_MULTIMASTER
 398                 /* send a referral */
 399                 } else {
 400                         BerVarray defref = op->o_bd->be_update_refs
 401                                 ? op->o_bd->be_update_refs : default_referral;
 402                         if ( defref != NULL ) {
 403                                 rs->sr_ref = referral_rewrite( defref,
 404                                         NULL, &op->o_req_dn,
 405                                         LDAP_SCOPE_DEFAULT );
 406                                 if ( rs->sr_ref == NULL ) {
 407                                         /* FIXME: must duplicate, because
 408                                          * overlays may muck with it */
 409                                         rs->sr_ref = defref;
 410                                 }
 411                                 rs->sr_err = LDAP_REFERRAL;
 412                                 send_ldap_result( op, rs );
 413                                 if ( rs->sr_ref != defref ) {
 414                                         ber_bvarray_free( rs->sr_ref );
 415                                 }
 416
 417                         } else {
 418                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 419                                         "shadow context; no update referral" );
 420                         }
 421 #endif
 422                 }
 423         } else {
 424                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 425                     "operation not supported within namingContext" );
 426         }
 427
 428 cleanup:;
 429         op->o_bd = bd;
 430         return rs->sr_err;
 431 }
 432
 433 /*
 434  * Obsolete constraint checking.
 435  */
 436 int
 437 slap_mods_obsolete_check(
 438         Operation *op,
 439         Modifications *ml,
 440         const char **text,
 441         char *textbuf,
 442         size_t textlen )
 443 {
 444         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 445
 446         for ( ; ml != NULL; ml = ml->sml_next ) {
 447                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 448                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 449                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 450                                         ml->sml_values != NULL ))
 451                 {
 452                         /*
 453                          * attribute is obsolete,
 454                          * only allow replace/delete with no values
 455                          */
 456                         snprintf( textbuf, textlen,
 457                                 "%s: attribute is obsolete",
 458                                 ml->sml_type.bv_val );
 459                         *text = textbuf;
 460                         return LDAP_CONSTRAINT_VIOLATION;
 461                 }
 462         }
 463
 464         return LDAP_SUCCESS;
 465 }
 466
 467 /*
 468  * No-user-modification constraint checking.
 469  */
 470 int
 471 slap_mods_no_user_mod_check(
 472         Operation *op,
 473         Modifications *ml,
 474         const char **text,
 475         char *textbuf,
 476         size_t textlen )
 477 {
 478         for ( ; ml != NULL; ml = ml->sml_next ) {
 479                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 480
 481                 if ( get_manageDIT( op ) ) {
 482                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 483                                 ml->sml_flags |= SLAP_MOD_MANAGING;
 484                                 continue;
 485                         }
 486
 487                         /* attribute not manageable */
 488                         snprintf( textbuf, textlen,
 489                                 "%s: no-user-modification attribute not manageable",
 490                                 ml->sml_type.bv_val );
 491
 492                 } else {
 493                         /* user modification disallowed */
 494                         snprintf( textbuf, textlen,
 495                                 "%s: no user modification allowed",
 496                                 ml->sml_type.bv_val );
 497                 }
 498
 499                 *text = textbuf;
 500                 return LDAP_CONSTRAINT_VIOLATION;
 501         }
 502
 503         return LDAP_SUCCESS;
 504 }
 505
 506 int
 507 slap_mods_no_repl_user_mod_check(
 508         Operation *op,
 509         Modifications *ml,
 510         const char **text,
 511         char *textbuf,
 512         size_t textlen )
 513 {
 514         Modifications *mods;
 515         Modifications *modp;
 516
 517         for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
 518                 assert( mods->sml_op == LDAP_MOD_ADD );
 519
 520                 /* check doesn't already appear */
 521                 for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
 522                         if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
 523                                 snprintf( textbuf, textlen,
 524                                         "attribute '%s' provided more than once",
 525                                         mods->sml_desc->ad_cname.bv_val );
 526                                 *text = textbuf;
 527                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 528                         }
 529                 }
 530         }
 531
 532         return LDAP_SUCCESS;
 533 }
 534
 535 /*
 536  * Do basic attribute type checking and syntax validation.
 537  */
 538 int slap_mods_check(
 539         Modifications *ml,
 540         const char **text,
 541         char *textbuf,
 542         size_t textlen,
 543         void *ctx )
 544 {
 545         int rc;
 546
 547         for( ; ml != NULL; ml = ml->sml_next ) {
 548                 AttributeDescription *ad = NULL;
 549
 550                 /* convert to attribute description */
 551                 if ( ml->sml_desc == NULL ) {
 552                         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 553                         if( rc != LDAP_SUCCESS ) {
 554                                 snprintf( textbuf, textlen, "%s: %s",
 555                                         ml->sml_type.bv_val, *text );
 556                                 *text = textbuf;
 557                                 return rc;
 558                         }
 559                 }
 560
 561                 ad = ml->sml_desc;
 562
 563                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 564                         && !slap_ad_is_binary( ad ))
 565                 {
 566                         /* attribute requires binary transfer */
 567                         snprintf( textbuf, textlen,
 568                                 "%s: requires ;binary transfer",
 569                                 ml->sml_type.bv_val );
 570                         *text = textbuf;
 571                         return LDAP_UNDEFINED_TYPE;
 572                 }
 573
 574                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 575                         && slap_ad_is_binary( ad ))
 576                 {
 577                         /* attribute does not require binary transfer */
 578                         snprintf( textbuf, textlen,
 579                                 "%s: disallows ;binary transfer",
 580                                 ml->sml_type.bv_val );
 581                         *text = textbuf;
 582                         return LDAP_UNDEFINED_TYPE;
 583                 }
 584
 585                 if( slap_ad_is_tag_range( ad )) {
 586                         /* attribute requires binary transfer */
 587                         snprintf( textbuf, textlen,
 588                                 "%s: inappropriate use of tag range option",
 589                                 ml->sml_type.bv_val );
 590                         *text = textbuf;
 591                         return LDAP_UNDEFINED_TYPE;
 592                 }
 593
 594 #if 0
 595                 if ( is_at_obsolete( ad->ad_type ) &&
 596                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 597                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 598                                         ml->sml_values != NULL ))
 599                 {
 600                         /*
 601                          * attribute is obsolete,
 602                          * only allow replace/delete with no values
 603                          */
 604                         snprintf( textbuf, textlen,
 605                                 "%s: attribute is obsolete",
 606                                 ml->sml_type.bv_val );
 607                         *text = textbuf;
 608                         return LDAP_CONSTRAINT_VIOLATION;
 609                 }
 610 #endif
 611
 612                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 613 #ifdef SLAPD_REAL_SYNTAX
 614                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 615 #endif
 616                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 617                 {
 618                         /*
 619                          * attribute values must be INTEGER or REAL
 620                          */
 621                         snprintf( textbuf, textlen,
 622                                 "%s: attribute syntax inappropriate for increment",
 623                                 ml->sml_type.bv_val );
 624                         *text = textbuf;
 625                         return LDAP_CONSTRAINT_VIOLATION;
 626                 }
 627
 628                 /*
 629                  * check values
 630                  */
 631                 if( ml->sml_values != NULL ) {
 632                         ber_len_t nvals;
 633                         slap_syntax_validate_func *validate =
 634                                 ad->ad_type->sat_syntax->ssyn_validate;
 635                         slap_syntax_transform_func *pretty =
 636                                 ad->ad_type->sat_syntax->ssyn_pretty;
 637
 638                         if( !pretty && !validate ) {
 639                                 *text = "no validator for syntax";
 640                                 snprintf( textbuf, textlen,
 641                                         "%s: no validator for syntax %s",
 642                                         ml->sml_type.bv_val,
 643                                         ad->ad_type->sat_syntax->ssyn_oid );
 644                                 *text = textbuf;
 645                                 return LDAP_INVALID_SYNTAX;
 646                         }
 647
 648                         /*
 649                          * check that each value is valid per syntax
 650                          *      and pretty if appropriate
 651                          */
 652                         for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 653                                 struct berval pval;
 654
 655                                 if ( pretty ) {
 656 #ifdef SLAP_ORDERED_PRETTYNORM
 657                                         rc = ordered_value_pretty( ad,
 658                                                 &ml->sml_values[nvals], &pval, ctx );
 659 #else /* ! SLAP_ORDERED_PRETTYNORM */
 660                                         rc = pretty( ad->ad_type->sat_syntax,
 661                                                 &ml->sml_values[nvals], &pval, ctx );
 662 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 663                                 } else {
 664 #ifdef SLAP_ORDERED_PRETTYNORM
 665                                         rc = ordered_value_validate( ad,
 666                                                 &ml->sml_values[nvals], ml->sml_op );
 667 #else /* ! SLAP_ORDERED_PRETTYNORM */
 668                                         rc = validate( ad->ad_type->sat_syntax,
 669                                                 &ml->sml_values[nvals] );
 670 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 671                                 }
 672
 673                                 if( rc != 0 ) {
 674                                         snprintf( textbuf, textlen,
 675                                                 "%s: value #%ld invalid per syntax",
 676                                                 ml->sml_type.bv_val, (long) nvals );
 677                                         *text = textbuf;
 678                                         return LDAP_INVALID_SYNTAX;
 679                                 }
 680
 681                                 if( pretty ) {
 682                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 683                                         ml->sml_values[nvals] = pval;
 684                                 }
 685                         }
 686
 687                         /*
 688                          * a rough single value check... an additional check is needed
 689                          * to catch add of single value to existing single valued attribute
 690                          */
 691                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 692                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 693                         {
 694                                 snprintf( textbuf, textlen,
 695                                         "%s: multiple values provided",
 696                                         ml->sml_type.bv_val );
 697                                 *text = textbuf;
 698                                 return LDAP_CONSTRAINT_VIOLATION;
 699                         }
 700
 701                         /* if the type has a normalizer, generate the
 702                          * normalized values. otherwise leave them NULL.
 703                          *
 704                          * this is different from the rule for attributes
 705                          * in an entry - in an attribute list, the normalized
 706                          * value is set equal to the non-normalized value
 707                          * when there is no normalizer.
 708                          */
 709                         if( nvals && ad->ad_type->sat_equality &&
 710                                 ad->ad_type->sat_equality->smr_normalize )
 711                         {
 712                                 ml->sml_nvalues = ber_memalloc_x(
 713                                         (nvals+1)*sizeof(struct berval), ctx );
 714
 715                                 for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 716 #ifdef SLAP_ORDERED_PRETTYNORM
 717                                         rc = ordered_value_normalize(
 718                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 719                                                 ad,
 720                                                 ad->ad_type->sat_equality,
 721                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 722 #else /* ! SLAP_ORDERED_PRETTYNORM */
 723                                         rc = ad->ad_type->sat_equality->smr_normalize(
 724                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 725                                                 ad->ad_type->sat_syntax,
 726                                                 ad->ad_type->sat_equality,
 727                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 728 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 729                                         if ( rc ) {
 730                                                 Debug( LDAP_DEBUG_ANY,
 731                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 732                                                         rc, 0, 0 );
 733                                                 snprintf( textbuf, textlen,
 734                                                         "%s: value #%ld normalization failed",
 735                                                         ml->sml_type.bv_val, (long) nvals );
 736                                                 *text = textbuf;
 737                                                 return rc;
 738                                         }
 739                                 }
 740
 741                                 BER_BVZERO( &ml->sml_nvalues[nvals] );
 742                         }
 743
 744                         /* check for duplicates, but ignore Deletes.
 745                          */
 746                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 747                                 int             i, j, rc, match;
 748                                 MatchingRule *mr = ad->ad_type->sat_equality;
 749
 750                                 for ( i = 1; i < nvals ; i++ ) {
 751                                         /* test asserted values against themselves */
 752                                         for( j = 0; j < i; j++ ) {
 753                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 754                                                         SLAP_MR_EQUALITY
 755                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 756                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 757                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 758                                                         ml->sml_nvalues
 759                                                                 ? &ml->sml_nvalues[i]
 760                                                                 : &ml->sml_values[i],
 761                                                         ml->sml_nvalues
 762                                                                 ? &ml->sml_nvalues[j]
 763                                                                 : &ml->sml_values[j],
 764                                                         text );
 765                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 766                                                         /* value exists already */
 767                                                         snprintf( textbuf, textlen,
 768                                                                 "%s: value #%d provided more than once",
 769                                                                 ml->sml_desc->ad_cname.bv_val, j );
 770                                                         *text = textbuf;
 771                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 772
 773                                                 } else if ( rc != LDAP_SUCCESS ) {
 774                                                         return rc;
 775                                                 }
 776                                         }
 777                                 }
 778                         }
 779
 780                 }
 781         }
 782
 783         return LDAP_SUCCESS;
 784 }
 785
 786 /* Enter with bv->bv_len = sizeof buffer, returns with
 787  * actual length of string
 788  */
 789 void slap_timestamp( time_t *tm, struct berval *bv )
 790 {
 791         struct tm *ltm;
 792 #ifdef HAVE_GMTIME_R
 793         struct tm ltm_buf;
 794
 795         ltm = gmtime_r( tm, &ltm_buf );
 796 #else
 797         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 798         ltm = gmtime( tm );
 799 #endif
 800
 801         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 802
 803 #ifndef HAVE_GMTIME_R
 804         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 805 #endif
 806 }
 807
 808 /* Called for all modify and modrdn ops. If the current op was replicated
 809  * from elsewhere, all of the attrs should already be present.
 810  */
 811 void slap_mods_opattrs(
 812         Operation *op,
 813         Modifications **modsp,
 814         int manage_ctxcsn )
 815 {
 816         struct berval name, timestamp, csn = BER_BVNULL;
 817         struct berval nname;
 818         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 819         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 820         Modifications *mod, **modtail, *modlast;
 821         int gotcsn = 0, gotmname = 0, gotmtime = 0;
 822
 823         if ( SLAP_LASTMOD( op->o_bd ) ) {
 824                 char *ptr;
 825                 timestamp.bv_val = timebuf;
 826                 for ( modtail = modsp; *modtail; modtail = &(*modtail)->sml_next ) {
 827                         if ( (*modtail)->sml_op != LDAP_MOD_ADD &&
 828                                 (*modtail)->sml_op != LDAP_MOD_REPLACE ) continue;
 829                         if ( (*modtail)->sml_desc == slap_schema.si_ad_entryCSN ) {
 830                                 csn = (*modtail)->sml_values[0];
 831                                 gotcsn = 1;
 832                         } else
 833                         if ( (*modtail)->sml_desc == slap_schema.si_ad_modifiersName ) {
 834                                 gotmname = 1;
 835                         } else
 836                         if ( (*modtail)->sml_desc == slap_schema.si_ad_modifyTimestamp ) {
 837                                 gotmtime = 1;
 838                         }
 839                 }
 840                 if ( BER_BVISEMPTY( &op->o_csn )) {
 841                         if ( !gotcsn ) {
 842                                 csn.bv_val = csnbuf;
 843                                 csn.bv_len = sizeof( csnbuf );
 844                                 slap_get_csn( op, &csn, manage_ctxcsn );
 845                         } else {
 846                                 if ( manage_ctxcsn )
 847                                         slap_queue_csn( op, &csn );
 848                         }
 849                 } else {
 850                         csn = op->o_csn;
 851                 }
 852                 ptr = ber_bvchr( &csn, '#' );
 853                 if ( ptr && ptr < &csn.bv_val[csn.bv_len] ) {
 854                         timestamp.bv_len = ptr - csn.bv_val;
 855                         if ( timestamp.bv_len >= sizeof( timebuf ))
 856                                 timestamp.bv_len = sizeof( timebuf ) - 1;
 857                         strncpy( timebuf, csn.bv_val, timestamp.bv_len );
 858                         timebuf[timestamp.bv_len] = '\0';
 859                 } else {
 860                         time_t now = slap_get_time();
 861
 862                         timestamp.bv_len = sizeof(timebuf);
 863
 864                         slap_timestamp( &now, &timestamp );
 865                 }
 866
 867                 if ( BER_BVISEMPTY( &op->o_dn ) ) {
 868                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 869                         nname = name;
 870                 } else {
 871                         name = op->o_dn;
 872                         nname = op->o_ndn;
 873                 }
 874
 875                 if ( !gotcsn ) {
 876                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 877                         mod->sml_op = LDAP_MOD_REPLACE;
 878                         mod->sml_flags = SLAP_MOD_INTERNAL;
 879                         mod->sml_next = NULL;
 880                         BER_BVZERO( &mod->sml_type );
 881                         mod->sml_desc = slap_schema.si_ad_entryCSN;
 882                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 883                         ber_dupbv( &mod->sml_values[0], &csn );
 884                         BER_BVZERO( &mod->sml_values[1] );
 885                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 886                         mod->sml_nvalues = NULL;
 887                         *modtail = mod;
 888                         modlast = mod;
 889                         modtail = &mod->sml_next;
 890                 }
 891
 892                 if ( !gotmname ) {
 893                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 894                         mod->sml_op = LDAP_MOD_REPLACE;
 895                         mod->sml_flags = SLAP_MOD_INTERNAL;
 896                         mod->sml_next = NULL;
 897                         BER_BVZERO( &mod->sml_type );
 898                         mod->sml_desc = slap_schema.si_ad_modifiersName;
 899                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 900                         ber_dupbv( &mod->sml_values[0], &name );
 901                         BER_BVZERO( &mod->sml_values[1] );
 902                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 903                         mod->sml_nvalues =
 904                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 905                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 906                         BER_BVZERO( &mod->sml_nvalues[1] );
 907                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 908                         *modtail = mod;
 909                         modtail = &mod->sml_next;
 910                 }
 911
 912                 if ( !gotmtime ) {
 913                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 914                         mod->sml_op = LDAP_MOD_REPLACE;
 915                         mod->sml_flags = SLAP_MOD_INTERNAL;
 916                         mod->sml_next = NULL;
 917                         BER_BVZERO( &mod->sml_type );
 918                         mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 919                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 920                         ber_dupbv( &mod->sml_values[0], &timestamp );
 921                         BER_BVZERO( &mod->sml_values[1] );
 922                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 923                         mod->sml_nvalues = NULL;
 924                         *modtail = mod;
 925                         modtail = &mod->sml_next;
 926                 }
 927         }
 928 }
 929