git.sur5r.net Git - openldap/blob - servers/slapd/modify.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  16  * All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms are permitted
  19  * provided that this notice is preserved and that due credit is given
  20  * to the University of Michigan at Ann Arbor. The name of the University
  21  * may not be used to endorse or promote products derived from this
  22  * software without specific prior written permission. This software
  23  * is provided ``as is'' without express or implied warranty.
  24  */
  25
  26 #include "portable.h"
  27
  28 #include <stdio.h>
  29
  30 #include <ac/socket.h>
  31 #include <ac/string.h>
  32 #include <ac/time.h>
  33
  34 #include "slap.h"
  35 #include "lutil.h"
  36
  37
  38 int
  39 do_modify(
  40     Operation   *op,
  41     SlapReply   *rs )
  42 {
  43         struct berval dn = BER_BVNULL;
  44         char            *last;
  45         ber_tag_t       tag;
  46         ber_len_t       len;
  47         Modifications   *modlist = NULL;
  48         Modifications   **modtail = &modlist;
  49         int             increment = 0;
  50         char            textbuf[ SLAP_TEXT_BUFLEN ];
  51         size_t          textlen = sizeof( textbuf );
  52
  53         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  54
  55         /*
  56          * Parse the modify request.  It looks like this:
  57          *
  58          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  59          *              name    DistinguishedName,
  60          *              mods    SEQUENCE OF SEQUENCE {
  61          *                      operation       ENUMERATED {
  62          *                              add     (0),
  63          *                              delete  (1),
  64          *                              replace (2)
  65          *                      },
  66          *                      modification    SEQUENCE {
  67          *                              type    AttributeType,
  68          *                              values  SET OF AttributeValue
  69          *                      }
  70          *              }
  71          *      }
  72          */
  73
  74         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  75                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  76
  77                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  78                 return SLAPD_DISCONNECT;
  79         }
  80
  81         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  82
  83         /* collect modifications & save for later */
  84         for ( tag = ber_first_element( op->o_ber, &len, &last );
  85             tag != LBER_DEFAULT;
  86             tag = ber_next_element( op->o_ber, &len, last ) )
  87         {
  88                 ber_int_t mop;
  89                 Modifications tmp, *mod;
  90
  91                 tmp.sml_nvalues = NULL;
  92
  93                 if ( ber_scanf( op->o_ber, "{e{m[W]}}", &mop,
  94                     &tmp.sml_type, &tmp.sml_values ) == LBER_ERROR )
  95                 {
  96                         send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR,
  97                                 "decoding modlist error" );
  98                         rs->sr_err = SLAPD_DISCONNECT;
  99                         goto cleanup;
 100                 }
 101
 102                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 103                 mod->sml_op = mop;
 104                 mod->sml_flags = 0;
 105                 mod->sml_type = tmp.sml_type;
 106                 mod->sml_values = tmp.sml_values;
 107                 mod->sml_nvalues = NULL;
 108                 mod->sml_desc = NULL;
 109                 mod->sml_next = NULL;
 110                 *modtail = mod;
 111
 112                 switch( mop ) {
 113                 case LDAP_MOD_ADD:
 114                         if ( mod->sml_values == NULL ) {
 115                                 Debug( LDAP_DEBUG_ANY,
 116                                         "do_modify: modify/add operation (%ld) requires values\n",
 117                                         (long) mop, 0, 0 );
 118
 119                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 120                                         "modify/add operation requires values" );
 121                                 goto cleanup;
 122                         }
 123
 124                         /* fall through */
 125
 126                 case LDAP_MOD_DELETE:
 127                 case LDAP_MOD_REPLACE:
 128                         break;
 129
 130                 case LDAP_MOD_INCREMENT:
 131                         if( op->o_protocol >= LDAP_VERSION3 ) {
 132                                 increment++;
 133                                 if ( mod->sml_values == NULL ) {
 134                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 135                                                 "modify/increment operation (%ld) requires value\n",
 136                                                 (long) mop, 0, 0 );
 137
 138                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 139                                                 "modify/increment operation requires value" );
 140                                         goto cleanup;
 141                                 }
 142
 143                                 if ( !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 ( modlist == NULL ) {
 173                 Debug( LDAP_DEBUG_ANY, "do_modify: no modifications\n", 0, 0, 0 );
 174                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 175                         "change sequence empty" );
 176
 177                 goto cleanup;
 178         }
 179
 180         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 181                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 182
 183                 goto cleanup;
 184         }
 185
 186         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 187                 op->o_tmpmemctx );
 188         if( rs->sr_err != LDAP_SUCCESS ) {
 189                 Debug( LDAP_DEBUG_ANY,
 190                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 191                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 192                 goto cleanup;
 193         }
 194
 195         rs->sr_err = slap_mods_check( modlist,
 196                 &rs->sr_text, textbuf, textlen, NULL );
 197
 198         if ( rs->sr_err != LDAP_SUCCESS ) {
 199                 send_ldap_result( op, rs );
 200                 goto cleanup;
 201         }
 202
 203         /* FIXME: needs review */
 204         op->orm_modlist = modlist;
 205         op->orm_increment = increment;
 206
 207         op->o_bd = frontendDB;
 208         rs->sr_err = frontendDB->be_modify( op, rs );
 209
 210 cleanup:
 211         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 212         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 213         if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist, 1 );
 214
 215         return rs->sr_err;
 216 }
 217
 218 int
 219 fe_op_modify( Operation *op, SlapReply *rs )
 220 {
 221 #ifdef LDAP_DEBUG
 222         Modifications   *tmp;
 223 #endif
 224         int             manageDSAit;
 225         Modifications   *modlist = op->orm_modlist;
 226         int             increment = op->orm_increment;
 227         BackendDB *op_be;
 228         char            textbuf[ SLAP_TEXT_BUFLEN ];
 229         size_t          textlen = sizeof( textbuf );
 230
 231         if( BER_BVISEMPTY( &op->o_req_ndn ) ) {
 232                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 233
 234                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 235                         "modify upon the root DSE not supported" );
 236                 goto cleanup;
 237
 238         } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
 239                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 240
 241                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 242                         "modification of subschema subentry not supported" );
 243                 goto cleanup;
 244         }
 245
 246 #ifdef LDAP_DEBUG
 247         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 248
 249         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 250                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 251                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 252                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 253                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 254                                         "replace")), tmp->sml_type.bv_val, 0 );
 255
 256                 if ( tmp->sml_values == NULL ) {
 257                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 258                            "\t\tno values", NULL, NULL );
 259                 } else if ( BER_BVISNULL( &tmp->sml_values[ 0 ] ) ) {
 260                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 261                            "\t\tzero values", NULL, NULL );
 262                 } else if ( BER_BVISNULL( &tmp->sml_values[ 1 ] ) ) {
 263                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 264                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 265                 } else {
 266                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 267                            "\t\tmultiple values", NULL, NULL );
 268                 }
 269         }
 270
 271         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 272                 char abuf[BUFSIZ/2], *ptr = abuf;
 273                 int len = 0;
 274
 275                 Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
 276                         op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
 277
 278                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 279                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 280                                 Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 281                                     op->o_log_prefix, abuf, 0, 0, 0 );
 282
 283                                 len = 0;
 284                                 ptr = abuf;
 285
 286                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 287                                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 288                                                 op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
 289                                         continue;
 290                                 }
 291                         }
 292                         if (len) {
 293                                 *ptr++ = ' ';
 294                                 len++;
 295                         }
 296                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 297                         len += tmp->sml_type.bv_len;
 298                 }
 299                 if (len) {
 300                         Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
 301                                 op->o_log_prefix, abuf, 0, 0, 0 );
 302                 }
 303         }
 304 #endif  /* LDAP_DEBUG */
 305
 306         manageDSAit = get_manageDSAit( op );
 307
 308         /*
 309          * We could be serving multiple database backends.  Select the
 310          * appropriate one, or send a referral to our "referral server"
 311          * if we don't hold it.
 312          */
 313         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 1 );
 314         if ( op->o_bd == NULL ) {
 315                 rs->sr_ref = referral_rewrite( default_referral,
 316                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 317                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 318
 319                 if (rs->sr_ref != NULL ) {
 320                         rs->sr_err = LDAP_REFERRAL;
 321                         op->o_bd = frontendDB;
 322                         send_ldap_result( op, rs );
 323                         op->o_bd = NULL;
 324
 325                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 326                 } else {
 327                         op->o_bd = frontendDB;
 328                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 329                                 "no global superior knowledge" );
 330                         op->o_bd = NULL;
 331                 }
 332                 goto cleanup;
 333         }
 334
 335         /* If we've got a glued backend, check the real backend */
 336         op_be = op->o_bd;
 337         if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
 338                 op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 339         }
 340
 341         /* check restrictions */
 342         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 343                 send_ldap_result( op, rs );
 344                 goto cleanup;
 345         }
 346
 347         /* check for referrals */
 348         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 349                 goto cleanup;
 350         }
 351
 352         rs->sr_err = slap_mods_obsolete_check( op, modlist,
 353                 &rs->sr_text, textbuf, textlen );
 354         if ( rs->sr_err != LDAP_SUCCESS ) {
 355                 send_ldap_result( op, rs );
 356                 goto cleanup;
 357         }
 358
 359         /* check for modify/increment support */
 360         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 361                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 362                         "modify/increment not supported in context" );
 363         }
 364
 365         /*
 366          * do the modify if 1 && (2 || 3)
 367          * 1) there is a modify function implemented in this backend;
 368          * 2) this backend is master for what it holds;
 369          * 3) it's a replica and the dn supplied is the update_ndn.
 370          */
 371         if ( op->o_bd->be_modify ) {
 372                 /* do the update here */
 373                 int repl_user = be_isupdate( op );
 374
 375                 /* Multimaster slapd does not have to check for replicator dn
 376                  * because it accepts each modify request
 377                  */
 378 #ifndef SLAPD_MULTIMASTER
 379                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 380 #endif
 381                 {
 382                         int             update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
 383                         slap_callback   cb = { NULL, slap_replog_cb, NULL, NULL };
 384
 385                         op->o_bd = op_be;
 386
 387                         if ( !update ) {
 388                                 rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
 389                                         &rs->sr_text, textbuf, textlen );
 390                                 if ( rs->sr_err != LDAP_SUCCESS ) {
 391                                         send_ldap_result( op, rs );
 392                                         goto cleanup;
 393                                 }
 394                         }
 395
 396                         op->orm_modlist = modlist;
 397 #ifdef SLAPD_MULTIMASTER
 398                         if ( !repl_user )
 399 #endif
 400                         {
 401                                 /* but multimaster slapd logs only the ones
 402                                  * not from a replicator user */
 403                                 cb.sc_next = op->o_callback;
 404                                 op->o_callback = &cb;
 405                         }
 406                         op->o_bd->be_modify( op, rs );
 407
 408 #ifndef SLAPD_MULTIMASTER
 409                 /* send a referral */
 410                 } else {
 411                         BerVarray defref = op->o_bd->be_update_refs
 412                                 ? op->o_bd->be_update_refs : default_referral;
 413                         if ( defref != NULL ) {
 414                                 rs->sr_ref = referral_rewrite( defref,
 415                                         NULL, &op->o_req_dn,
 416                                         LDAP_SCOPE_DEFAULT );
 417                                 if ( rs->sr_ref == NULL ) {
 418                                         /* FIXME: must duplicate, because
 419                                          * overlays may muck with it */
 420                                         rs->sr_ref = defref;
 421                                 }
 422                                 rs->sr_err = LDAP_REFERRAL;
 423                                 send_ldap_result( op, rs );
 424                                 if ( rs->sr_ref != defref ) {
 425                                         ber_bvarray_free( rs->sr_ref );
 426                                 }
 427
 428                         } else {
 429                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 430                                         "shadow context; no update referral" );
 431                         }
 432 #endif
 433                 }
 434         } else {
 435                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 436                     "operation not supported within namingContext" );
 437         }
 438
 439 cleanup:;
 440         return rs->sr_err;
 441 }
 442
 443 /*
 444  * Obsolete constraint checking.
 445  */
 446 int
 447 slap_mods_obsolete_check(
 448         Operation *op,
 449         Modifications *ml,
 450         const char **text,
 451         char *textbuf,
 452         size_t textlen )
 453 {
 454         if( get_manageDIT( op ) ) return LDAP_SUCCESS;
 455
 456         for ( ; ml != NULL; ml = ml->sml_next ) {
 457                 if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
 458                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 459                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 460                                         ml->sml_values != NULL ))
 461                 {
 462                         /*
 463                          * attribute is obsolete,
 464                          * only allow replace/delete with no values
 465                          */
 466                         snprintf( textbuf, textlen,
 467                                 "%s: attribute is obsolete",
 468                                 ml->sml_type.bv_val );
 469                         *text = textbuf;
 470                         return LDAP_CONSTRAINT_VIOLATION;
 471                 }
 472         }
 473
 474         return LDAP_SUCCESS;
 475 }
 476
 477 /*
 478  * No-user-modification constraint checking.
 479  */
 480 int
 481 slap_mods_no_user_mod_check(
 482         Operation *op,
 483         Modifications *ml,
 484         const char **text,
 485         char *textbuf,
 486         size_t textlen )
 487 {
 488         for ( ; ml != NULL; ml = ml->sml_next ) {
 489                 if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) continue;
 490
 491                 if ( get_manageDIT( op ) ) {
 492                         if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
 493                                 ml->sml_flags |= SLAP_MOD_MANAGING;
 494                                 continue;
 495                         }
 496
 497                         /* attribute not manageable */
 498                         snprintf( textbuf, textlen,
 499                                 "%s: no-user-modification attribute not manageable",
 500                                 ml->sml_type.bv_val );
 501
 502                 } else {
 503                         /* user modification disallowed */
 504                         snprintf( textbuf, textlen,
 505                                 "%s: no user modification allowed",
 506                                 ml->sml_type.bv_val );
 507                 }
 508
 509                 *text = textbuf;
 510                 return LDAP_CONSTRAINT_VIOLATION;
 511         }
 512
 513         return LDAP_SUCCESS;
 514 }
 515
 516 int
 517 slap_mods_no_repl_user_mod_check(
 518         Operation *op,
 519         Modifications *ml,
 520         const char **text,
 521         char *textbuf,
 522         size_t textlen )
 523 {
 524         Modifications *mods;
 525         Modifications *modp;
 526
 527         for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
 528                 assert( mods->sml_op == LDAP_MOD_ADD );
 529
 530                 /* check doesn't already appear */
 531                 for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
 532                         if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
 533                                 snprintf( textbuf, textlen,
 534                                         "attribute '%s' provided more than once",
 535                                         mods->sml_desc->ad_cname.bv_val );
 536                                 *text = textbuf;
 537                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 538                         }
 539                 }
 540         }
 541
 542         return LDAP_SUCCESS;
 543 }
 544
 545 /*
 546  * Do basic attribute type checking and syntax validation.
 547  */
 548 int slap_mods_check(
 549         Modifications *ml,
 550         const char **text,
 551         char *textbuf,
 552         size_t textlen,
 553         void *ctx )
 554 {
 555         int rc;
 556
 557         for( ; ml != NULL; ml = ml->sml_next ) {
 558                 AttributeDescription *ad = NULL;
 559
 560                 /* convert to attribute description */
 561                 if ( ml->sml_desc == NULL ) {
 562                         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 563                         if( rc != LDAP_SUCCESS ) {
 564                                 snprintf( textbuf, textlen, "%s: %s",
 565                                         ml->sml_type.bv_val, *text );
 566                                 *text = textbuf;
 567                                 return rc;
 568                         }
 569                 }
 570
 571                 ad = ml->sml_desc;
 572
 573                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 574                         && !slap_ad_is_binary( ad ))
 575                 {
 576                         /* attribute requires binary transfer */
 577                         snprintf( textbuf, textlen,
 578                                 "%s: requires ;binary transfer",
 579                                 ml->sml_type.bv_val );
 580                         *text = textbuf;
 581                         return LDAP_UNDEFINED_TYPE;
 582                 }
 583
 584                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 585                         && slap_ad_is_binary( ad ))
 586                 {
 587                         /* attribute does not require binary transfer */
 588                         snprintf( textbuf, textlen,
 589                                 "%s: disallows ;binary transfer",
 590                                 ml->sml_type.bv_val );
 591                         *text = textbuf;
 592                         return LDAP_UNDEFINED_TYPE;
 593                 }
 594
 595                 if( slap_ad_is_tag_range( ad )) {
 596                         /* attribute requires binary transfer */
 597                         snprintf( textbuf, textlen,
 598                                 "%s: inappropriate use of tag range option",
 599                                 ml->sml_type.bv_val );
 600                         *text = textbuf;
 601                         return LDAP_UNDEFINED_TYPE;
 602                 }
 603
 604 #if 0
 605                 if ( is_at_obsolete( ad->ad_type ) &&
 606                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 607                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 608                                         ml->sml_values != NULL ))
 609                 {
 610                         /*
 611                          * attribute is obsolete,
 612                          * only allow replace/delete with no values
 613                          */
 614                         snprintf( textbuf, textlen,
 615                                 "%s: attribute is obsolete",
 616                                 ml->sml_type.bv_val );
 617                         *text = textbuf;
 618                         return LDAP_CONSTRAINT_VIOLATION;
 619                 }
 620 #endif
 621
 622                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 623 #ifdef SLAPD_REAL_SYNTAX
 624                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 625 #endif
 626                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 627                 {
 628                         /*
 629                          * attribute values must be INTEGER or REAL
 630                          */
 631                         snprintf( textbuf, textlen,
 632                                 "%s: attribute syntax inappropriate for increment",
 633                                 ml->sml_type.bv_val );
 634                         *text = textbuf;
 635                         return LDAP_CONSTRAINT_VIOLATION;
 636                 }
 637
 638                 /*
 639                  * check values
 640                  */
 641                 if( ml->sml_values != NULL ) {
 642                         ber_len_t nvals;
 643                         slap_syntax_validate_func *validate =
 644                                 ad->ad_type->sat_syntax->ssyn_validate;
 645                         slap_syntax_transform_func *pretty =
 646                                 ad->ad_type->sat_syntax->ssyn_pretty;
 647
 648                         if( !pretty && !validate ) {
 649                                 *text = "no validator for syntax";
 650                                 snprintf( textbuf, textlen,
 651                                         "%s: no validator for syntax %s",
 652                                         ml->sml_type.bv_val,
 653                                         ad->ad_type->sat_syntax->ssyn_oid );
 654                                 *text = textbuf;
 655                                 return LDAP_INVALID_SYNTAX;
 656                         }
 657
 658                         /*
 659                          * check that each value is valid per syntax
 660                          *      and pretty if appropriate
 661                          */
 662                         for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 663                                 struct berval pval;
 664
 665                                 if ( pretty ) {
 666 #ifdef SLAP_ORDERED_PRETTYNORM
 667                                         rc = ordered_value_pretty( ad,
 668                                                 &ml->sml_values[nvals], &pval, ctx );
 669 #else /* ! SLAP_ORDERED_PRETTYNORM */
 670                                         rc = pretty( ad->ad_type->sat_syntax,
 671                                                 &ml->sml_values[nvals], &pval, ctx );
 672 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 673                                 } else {
 674 #ifdef SLAP_ORDERED_PRETTYNORM
 675                                         rc = ordered_value_validate( ad,
 676                                                 &ml->sml_values[nvals] );
 677 #else /* ! SLAP_ORDERED_PRETTYNORM */
 678                                         rc = validate( ad->ad_type->sat_syntax,
 679                                                 &ml->sml_values[nvals] );
 680 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 681                                 }
 682
 683                                 if( rc != 0 ) {
 684                                         snprintf( textbuf, textlen,
 685                                                 "%s: value #%ld invalid per syntax",
 686                                                 ml->sml_type.bv_val, (long) nvals );
 687                                         *text = textbuf;
 688                                         return LDAP_INVALID_SYNTAX;
 689                                 }
 690
 691                                 if( pretty ) {
 692                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 693                                         ml->sml_values[nvals] = pval;
 694                                 }
 695                         }
 696
 697                         /*
 698                          * a rough single value check... an additional check is needed
 699                          * to catch add of single value to existing single valued attribute
 700                          */
 701                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 702                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 703                         {
 704                                 snprintf( textbuf, textlen,
 705                                         "%s: multiple values provided",
 706                                         ml->sml_type.bv_val );
 707                                 *text = textbuf;
 708                                 return LDAP_CONSTRAINT_VIOLATION;
 709                         }
 710
 711                         /* if the type has a normalizer, generate the
 712                          * normalized values. otherwise leave them NULL.
 713                          *
 714                          * this is different from the rule for attributes
 715                          * in an entry - in an attribute list, the normalized
 716                          * value is set equal to the non-normalized value
 717                          * when there is no normalizer.
 718                          */
 719                         if( nvals && ad->ad_type->sat_equality &&
 720                                 ad->ad_type->sat_equality->smr_normalize )
 721                         {
 722                                 ml->sml_nvalues = ber_memalloc_x(
 723                                         (nvals+1)*sizeof(struct berval), ctx );
 724
 725                                 for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
 726 #ifdef SLAP_ORDERED_PRETTYNORM
 727                                         rc = ordered_value_normalize(
 728                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 729                                                 ad,
 730                                                 ad->ad_type->sat_equality,
 731                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 732 #else /* ! SLAP_ORDERED_PRETTYNORM */
 733                                         rc = ad->ad_type->sat_equality->smr_normalize(
 734                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 735                                                 ad->ad_type->sat_syntax,
 736                                                 ad->ad_type->sat_equality,
 737                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 738 #endif /* ! SLAP_ORDERED_PRETTYNORM */
 739                                         if ( rc ) {
 740                                                 Debug( LDAP_DEBUG_ANY,
 741                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 742                                                         rc, 0, 0 );
 743                                                 snprintf( textbuf, textlen,
 744                                                         "%s: value #%ld normalization failed",
 745                                                         ml->sml_type.bv_val, (long) nvals );
 746                                                 *text = textbuf;
 747                                                 return rc;
 748                                         }
 749                                 }
 750
 751                                 BER_BVZERO( &ml->sml_nvalues[nvals] );
 752                         }
 753
 754                         /* check for duplicates, but ignore Deletes.
 755                          */
 756                         if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
 757                                 int             i, j, rc, match;
 758                                 MatchingRule *mr = ad->ad_type->sat_equality;
 759
 760                                 for ( i = 1; i < nvals ; i++ ) {
 761                                         /* test asserted values against themselves */
 762                                         for( j = 0; j < i; j++ ) {
 763                                                 rc = ordered_value_match( &match, ml->sml_desc, mr,
 764                                                         SLAP_MR_EQUALITY
 765                                                                 | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 766                                                                 | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 767                                                                 | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 768                                                         ml->sml_nvalues
 769                                                                 ? &ml->sml_nvalues[i]
 770                                                                 : &ml->sml_values[i],
 771                                                         ml->sml_nvalues
 772                                                                 ? &ml->sml_nvalues[j]
 773                                                                 : &ml->sml_values[j],
 774                                                         text );
 775                                                 if ( rc == LDAP_SUCCESS && match == 0 ) {
 776                                                         /* value exists already */
 777                                                         snprintf( textbuf, textlen,
 778                                                                 "%s: value #%d provided more than once",
 779                                                                 ml->sml_desc->ad_cname.bv_val, j );
 780                                                         *text = textbuf;
 781                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 782
 783                                                 } else if ( rc != LDAP_SUCCESS ) {
 784                                                         return rc;
 785                                                 }
 786                                         }
 787                                 }
 788                         }
 789
 790                 }
 791         }
 792
 793         return LDAP_SUCCESS;
 794 }
 795
 796 /* Enter with bv->bv_len = sizeof buffer, returns with
 797  * actual length of string
 798  */
 799 void slap_timestamp( time_t *tm, struct berval *bv )
 800 {
 801         struct tm *ltm;
 802 #ifdef HAVE_GMTIME_R
 803         struct tm ltm_buf;
 804
 805         ltm = gmtime_r( tm, &ltm_buf );
 806 #else
 807         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 808         ltm = gmtime( tm );
 809 #endif
 810
 811         bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, ltm );
 812
 813 #ifndef HAVE_GMTIME_R
 814         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 815 #endif
 816 }
 817
 818 /* modify only calls this for non-replicas. modrdn always calls.
 819  */
 820 void slap_mods_opattrs(
 821         Operation *op,
 822         Modifications *mods,
 823         int manage_ctxcsn )
 824 {
 825         struct berval name, timestamp, csn = BER_BVNULL;
 826         struct berval nname;
 827         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 828         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 829         Modifications *mod, **modtail, *modlast;
 830
 831         if ( SLAP_LASTMOD( op->o_bd ) ) {
 832                 char *ptr;
 833                 timestamp.bv_val = timebuf;
 834                 if ( BER_BVISEMPTY( &op->o_csn )) {
 835                         csn.bv_val = csnbuf;
 836                         csn.bv_len = sizeof( csnbuf );
 837                         slap_get_csn( op, &csn, manage_ctxcsn );
 838                 } else {
 839                         csn = op->o_csn;
 840                 }
 841                 ptr = ber_bvchr( &csn, '#' );
 842                 if ( ptr && ptr < &csn.bv_val[csn.bv_len] ) {
 843                         timestamp.bv_len = ptr - csn.bv_val;
 844                         if ( timestamp.bv_len >= sizeof( timebuf ))
 845                                 timestamp.bv_len = sizeof( timebuf ) - 1;
 846                         strncpy( timebuf, csn.bv_val, timestamp.bv_len );
 847                         timebuf[timestamp.bv_len] = '\0';
 848                 } else {
 849                         time_t now = slap_get_time();
 850
 851                         timestamp.bv_len = sizeof(timebuf);
 852
 853                         slap_timestamp( &now, &timestamp );
 854                 }
 855
 856                 if ( BER_BVISEMPTY( &op->o_dn ) ) {
 857                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 858                         nname = name;
 859                 } else {
 860                         name = op->o_dn;
 861                         nname = op->o_ndn;
 862                 }
 863
 864                 for ( mod = mods; mod->sml_next; mod = mod->sml_next )
 865                         ;
 866                 modtail = &mod->sml_next;
 867
 868                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 869                 mod->sml_op = LDAP_MOD_REPLACE;
 870                 mod->sml_flags = SLAP_MOD_INTERNAL;
 871                 mod->sml_next = NULL;
 872                 BER_BVZERO( &mod->sml_type );
 873                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 874                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 875                 ber_dupbv( &mod->sml_values[0], &csn );
 876                 BER_BVZERO( &mod->sml_values[1] );
 877                 assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 878                 mod->sml_nvalues = NULL;
 879                 *modtail = mod;
 880                 modlast = mod;
 881                 modtail = &mod->sml_next;
 882
 883                 if ( get_manageDIT( op ) ) {
 884                         for ( mod = mods; mod != modlast; mod = mod->sml_next ) {
 885                                 if ( mod->sml_desc == slap_schema.si_ad_modifiersName ) {
 886                                         break;
 887                                 }
 888                         }
 889                 }
 890
 891                 if ( mod->sml_desc != slap_schema.si_ad_modifiersName ) {
 892                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 893                         mod->sml_op = LDAP_MOD_REPLACE;
 894                         mod->sml_flags = SLAP_MOD_INTERNAL;
 895                         mod->sml_next = NULL;
 896                         BER_BVZERO( &mod->sml_type );
 897                         mod->sml_desc = slap_schema.si_ad_modifiersName;
 898                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 899                         ber_dupbv( &mod->sml_values[0], &name );
 900                         BER_BVZERO( &mod->sml_values[1] );
 901                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 902                         mod->sml_nvalues =
 903                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 904                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 905                         BER_BVZERO( &mod->sml_nvalues[1] );
 906                         assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
 907                         *modtail = mod;
 908                         modtail = &mod->sml_next;
 909                 }
 910
 911                 if ( get_manageDIT( op ) ) {
 912                         for ( mod = mods; mod != modlast; mod = mod->sml_next ) {
 913                                 if ( mod->sml_desc == slap_schema.si_ad_modifyTimestamp ) {
 914                                         break;
 915                                 }
 916                         }
 917                 }
 918
 919                 if ( mod->sml_desc != slap_schema.si_ad_modifyTimestamp ) {
 920                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 921                         mod->sml_op = LDAP_MOD_REPLACE;
 922                         mod->sml_flags = SLAP_MOD_INTERNAL;
 923                         mod->sml_next = NULL;
 924                         BER_BVZERO( &mod->sml_type );
 925                         mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 926                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 927                         ber_dupbv( &mod->sml_values[0], &timestamp );
 928                         BER_BVZERO( &mod->sml_values[1] );
 929                         assert( !BER_BVISNULL( &mod->sml_values[0] ) );
 930                         mod->sml_nvalues = NULL;
 931                         *modtail = mod;
 932                         modtail = &mod->sml_next;
 933                 }
 934         }
 935 }
 936