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

   1 /* schema_check.c - routines to enforce schema definitions */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2016 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20
  21 #include <ac/ctype.h>
  22 #include <ac/string.h>
  23 #include <ac/socket.h>
  24
  25 #include "slap.h"
  26
  27 static char * oc_check_required(
  28         Entry *e,
  29         ObjectClass *oc,
  30         struct berval *ocname );
  31
  32 static int entry_naming_check(
  33         Entry *e,
  34         int manage,
  35         int add_naming,
  36         const char** text,
  37         char *textbuf, size_t textlen );
  38 /*
  39  * entry_schema_check - check that entry e conforms to the schema required
  40  * by its object class(es).
  41  *
  42  * returns 0 if so, non-zero otherwise.
  43  */
  44
  45 int
  46 entry_schema_check(
  47         Operation *op,
  48         Entry *e,
  49         Attribute *oldattrs,
  50         int manage,
  51         int add,
  52         Attribute **socp,
  53         const char** text,
  54         char *textbuf, size_t textlen )
  55 {
  56         Attribute       *a, *asc = NULL, *aoc = NULL;
  57         ObjectClass *sc, *oc, **socs = NULL;
  58         AttributeType *at;
  59         ContentRule *cr;
  60         int     rc, i;
  61         AttributeDescription *ad_structuralObjectClass
  62                 = slap_schema.si_ad_structuralObjectClass;
  63         AttributeDescription *ad_objectClass
  64                 = slap_schema.si_ad_objectClass;
  65         int extensible = 0;
  66         int subentry = is_entry_subentry( e );
  67         int collectiveSubentry = 0;
  68
  69         if ( SLAP_NO_SCHEMA_CHECK( op->o_bd )) {
  70                 return LDAP_SUCCESS;
  71         }
  72
  73         if ( get_no_schema_check( op ) ) {
  74                 return LDAP_SUCCESS;
  75         }
  76
  77         if( subentry ) {
  78                 collectiveSubentry = is_entry_collectiveAttributeSubentry( e );
  79         }
  80
  81         *text = textbuf;
  82
  83         /* misc attribute checks */
  84         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
  85                 const char *type = a->a_desc->ad_cname.bv_val;
  86
  87                 /* there should be at least one value */
  88                 assert( a->a_vals != NULL );
  89                 assert( a->a_vals[0].bv_val != NULL );
  90
  91                 if( a->a_desc->ad_type->sat_check ) {
  92                         rc = (a->a_desc->ad_type->sat_check)(
  93                                 op->o_bd, e, a, text, textbuf, textlen );
  94                         if( rc != LDAP_SUCCESS ) {
  95                                 return rc;
  96                         }
  97                 }
  98
  99                 if( a->a_desc == ad_structuralObjectClass )
 100                         asc = a;
 101                 else if ( a->a_desc == ad_objectClass )
 102                         aoc = a;
 103
 104                 if( !collectiveSubentry && is_at_collective( a->a_desc->ad_type ) ) {
 105                         snprintf( textbuf, textlen,
 106                                 "'%s' can only appear in collectiveAttributeSubentry",
 107                                 type );
 108                         return LDAP_OBJECT_CLASS_VIOLATION;
 109                 }
 110
 111                 /* if single value type, check for multiple values */
 112                 if( is_at_single_value( a->a_desc->ad_type ) &&
 113                         a->a_vals[1].bv_val != NULL )
 114                 {
 115                         snprintf( textbuf, textlen,
 116                                 "attribute '%s' cannot have multiple values",
 117                                 type );
 118
 119                         Debug( LDAP_DEBUG_ANY,
 120                             "Entry (%s), %s\n",
 121                             e->e_dn, textbuf, 0 );
 122
 123                         return LDAP_CONSTRAINT_VIOLATION;
 124                 }
 125         }
 126
 127         /* check the object class attribute */
 128         if ( aoc == NULL ) {
 129                 Debug( LDAP_DEBUG_ANY, "No objectClass for entry (%s)\n",
 130                     e->e_dn, 0, 0 );
 131
 132                 *text = "no objectClass attribute";
 133                 return LDAP_OBJECT_CLASS_VIOLATION;
 134         }
 135
 136         assert( aoc->a_vals != NULL );
 137         assert( aoc->a_vals[0].bv_val != NULL );
 138
 139         /* check the structural object class attribute */
 140         if ( asc == NULL && !add ) {
 141                 Debug( LDAP_DEBUG_ANY,
 142                         "No structuralObjectClass for entry (%s)\n",
 143                     e->e_dn, 0, 0 );
 144
 145                 *text = "no structuralObjectClass operational attribute";
 146                 return LDAP_OTHER;
 147         }
 148
 149         rc = structural_class( aoc->a_vals, &oc, &socs, text, textbuf, textlen,
 150                 op->o_tmpmemctx );
 151         if( rc != LDAP_SUCCESS ) {
 152                 return rc;
 153         }
 154
 155         if ( asc == NULL && add ) {
 156                 attr_merge_one( e, ad_structuralObjectClass, &oc->soc_cname, NULL );
 157                 asc = attr_find( e->e_attrs, ad_structuralObjectClass );
 158                 sc = oc;
 159                 goto got_soc;
 160         }
 161
 162         assert( asc->a_vals != NULL );
 163         assert( asc->a_vals[0].bv_val != NULL );
 164         assert( asc->a_vals[1].bv_val == NULL );
 165
 166         sc = oc_bvfind( &asc->a_vals[0] );
 167         if( sc == NULL ) {
 168                 snprintf( textbuf, textlen,
 169                         "unrecognized structuralObjectClass '%s'",
 170                         asc->a_vals[0].bv_val );
 171
 172                 Debug( LDAP_DEBUG_ANY,
 173                         "entry_check_schema(%s): %s\n",
 174                         e->e_dn, textbuf, 0 );
 175
 176                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 177                 goto done;
 178         }
 179
 180         if( sc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 181                 snprintf( textbuf, textlen,
 182                         "structuralObjectClass '%s' is not STRUCTURAL",
 183                         asc->a_vals[0].bv_val );
 184
 185                 Debug( LDAP_DEBUG_ANY,
 186                         "entry_check_schema(%s): %s\n",
 187                         e->e_dn, textbuf, 0 );
 188
 189                 rc = LDAP_OTHER;
 190                 goto done;
 191         }
 192
 193 got_soc:
 194         if( !manage && sc->soc_obsolete ) {
 195                 snprintf( textbuf, textlen,
 196                         "structuralObjectClass '%s' is OBSOLETE",
 197                         asc->a_vals[0].bv_val );
 198
 199                 Debug( LDAP_DEBUG_ANY,
 200                         "entry_check_schema(%s): %s\n",
 201                         e->e_dn, textbuf, 0 );
 202
 203                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 204                 goto done;
 205         }
 206
 207         *text = textbuf;
 208
 209         if ( oc == NULL ) {
 210                 snprintf( textbuf, textlen,
 211                         "unrecognized objectClass '%s'",
 212                         aoc->a_vals[0].bv_val );
 213                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 214                 goto done;
 215
 216         } else if ( sc != oc ) {
 217                 if ( !manage && sc != slap_schema.si_oc_glue ) {
 218                         snprintf( textbuf, textlen,
 219                                 "structural object class modification "
 220                                 "from '%s' to '%s' not allowed",
 221                                 asc->a_vals[0].bv_val, oc->soc_cname.bv_val );
 222                         rc = LDAP_NO_OBJECT_CLASS_MODS;
 223                         goto done;
 224                 }
 225
 226                 assert( asc->a_vals != NULL );
 227                 assert( !BER_BVISNULL( &asc->a_vals[0] ) );
 228                 assert( BER_BVISNULL( &asc->a_vals[1] ) );
 229                 assert( asc->a_nvals == asc->a_vals );
 230
 231                 /* draft-zeilenga-ldap-relax: automatically modify
 232                  * structuralObjectClass if changed with relax */
 233                 sc = oc;
 234                 ber_bvreplace( &asc->a_vals[ 0 ], &sc->soc_cname );
 235                 if ( socp ) {
 236                         *socp = asc;
 237                 }
 238         }
 239
 240         /* naming check */
 241         if ( !is_entry_glue ( e ) ) {
 242                 rc = entry_naming_check( e, manage, add, text, textbuf, textlen );
 243                 if( rc != LDAP_SUCCESS ) {
 244                         goto done;
 245                 }
 246         } else {
 247                 /* Glue Entry */
 248         }
 249
 250         /* find the content rule for the structural class */
 251         cr = cr_find( sc->soc_oid );
 252
 253         /* the cr must be same as the structural class */
 254         assert( !cr || !strcmp( cr->scr_oid, sc->soc_oid ) );
 255
 256         /* check that the entry has required attrs of the content rule */
 257         if( cr ) {
 258                 if( !manage && cr->scr_obsolete ) {
 259                         snprintf( textbuf, textlen,
 260                                 "content rule '%s' is obsolete",
 261                                 ldap_contentrule2name( &cr->scr_crule ));
 262
 263                         Debug( LDAP_DEBUG_ANY,
 264                                 "Entry (%s): %s\n",
 265                                 e->e_dn, textbuf, 0 );
 266
 267                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 268                         goto done;
 269                 }
 270
 271                 if( cr->scr_required ) for( i=0; cr->scr_required[i]; i++ ) {
 272                         at = cr->scr_required[i];
 273
 274                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 275                                 if( a->a_desc->ad_type == at ) {
 276                                         break;
 277                                 }
 278                         }
 279
 280                         /* not there => schema violation */
 281                         if ( a == NULL ) {
 282                                 snprintf( textbuf, textlen,
 283                                         "content rule '%s' requires attribute '%s'",
 284                                         ldap_contentrule2name( &cr->scr_crule ),
 285                                         at->sat_cname.bv_val );
 286
 287                                 Debug( LDAP_DEBUG_ANY,
 288                                         "Entry (%s): %s\n",
 289                                         e->e_dn, textbuf, 0 );
 290
 291                                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 292                                 goto done;
 293                         }
 294                 }
 295
 296                 if( cr->scr_precluded ) for( i=0; cr->scr_precluded[i]; i++ ) {
 297                         at = cr->scr_precluded[i];
 298
 299                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 300                                 if( a->a_desc->ad_type == at ) {
 301                                         break;
 302                                 }
 303                         }
 304
 305                         /* there => schema violation */
 306                         if ( a != NULL ) {
 307                                 snprintf( textbuf, textlen,
 308                                         "content rule '%s' precluded attribute '%s'",
 309                                         ldap_contentrule2name( &cr->scr_crule ),
 310                                         at->sat_cname.bv_val );
 311
 312                                 Debug( LDAP_DEBUG_ANY,
 313                                         "Entry (%s): %s\n",
 314                                         e->e_dn, textbuf, 0 );
 315
 316                                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 317                                 goto done;
 318                         }
 319                 }
 320         }
 321
 322         /* check that the entry has required attrs for each oc */
 323         for ( i = 0; socs[i]; i++ ) {
 324                 oc = socs[i];
 325                 if ( !manage && oc->soc_obsolete ) {
 326                         /* disallow obsolete classes */
 327                         snprintf( textbuf, textlen,
 328                                 "objectClass '%s' is OBSOLETE",
 329                                 aoc->a_vals[i].bv_val );
 330
 331                         Debug( LDAP_DEBUG_ANY,
 332                                 "entry_check_schema(%s): %s\n",
 333                                 e->e_dn, textbuf, 0 );
 334
 335                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 336                         goto done;
 337                 }
 338
 339                 if ( oc->soc_check ) {
 340                         rc = (oc->soc_check)( op->o_bd, e, oc,
 341                                 text, textbuf, textlen );
 342                         if( rc != LDAP_SUCCESS ) {
 343                                 goto done;
 344                         }
 345                 }
 346
 347                 if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT ) {
 348                         /* object class is abstract */
 349                         if ( oc != slap_schema.si_oc_top &&
 350                                 !is_object_subclass( oc, sc ))
 351                         {
 352                                 int j;
 353                                 ObjectClass *xc = NULL;
 354                                 for( j=0; socs[j]; j++ ) {
 355                                         if( i != j ) {
 356                                                 xc = socs[j];
 357
 358                                                 /* since we previous check against the
 359                                                  * structural object of this entry, the
 360                                                  * abstract class must be a (direct or indirect)
 361                                                  * superclass of one of the auxiliary classes of
 362                                                  * the entry.
 363                                                  */
 364                                                 if ( xc->soc_kind == LDAP_SCHEMA_AUXILIARY &&
 365                                                         is_object_subclass( oc, xc ) )
 366                                                 {
 367                                                         xc = NULL;
 368                                                         break;
 369                                                 }
 370                                         }
 371                                 }
 372
 373                                 if( xc != NULL ) {
 374                                         snprintf( textbuf, textlen, "instantiation of "
 375                                                 "abstract objectClass '%s' not allowed",
 376                                                 aoc->a_vals[i].bv_val );
 377
 378                                         Debug( LDAP_DEBUG_ANY,
 379                                                 "entry_check_schema(%s): %s\n",
 380                                                 e->e_dn, textbuf, 0 );
 381
 382                                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 383                                         goto done;
 384                                 }
 385                         }
 386
 387                 } else if ( oc->soc_kind != LDAP_SCHEMA_STRUCTURAL || oc == sc ) {
 388                         char *s;
 389
 390                         if( oc->soc_kind == LDAP_SCHEMA_AUXILIARY ) {
 391                                 int k;
 392
 393                                 if( cr ) {
 394                                         int j;
 395
 396                                         k = -1;
 397                                         if( cr->scr_auxiliaries ) {
 398                                                 for( j = 0; cr->scr_auxiliaries[j]; j++ ) {
 399                                                         if( cr->scr_auxiliaries[j] == oc ) {
 400                                                                 k = 0;
 401                                                                 break;
 402                                                         }
 403                                                 }
 404                                         }
 405                                         if ( k ) {
 406                                                 snprintf( textbuf, textlen,
 407                                                         "class '%s' not allowed by content rule '%s'",
 408                                                         oc->soc_cname.bv_val,
 409                                                         ldap_contentrule2name( &cr->scr_crule ) );
 410                                         }
 411                                 } else if ( global_disallows & SLAP_DISALLOW_AUX_WO_CR ) {
 412                                         k = -1;
 413                                         snprintf( textbuf, textlen,
 414                                                 "class '%s' not allowed by any content rule",
 415                                                 oc->soc_cname.bv_val );
 416                                 } else {
 417                                         k = 0;
 418                                 }
 419
 420                                 if( k == -1 ) {
 421                                         Debug( LDAP_DEBUG_ANY,
 422                                                 "Entry (%s): %s\n",
 423                                                 e->e_dn, textbuf, 0 );
 424
 425                                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 426                                         goto done;
 427                                 }
 428                         }
 429
 430                         s = oc_check_required( e, oc, &aoc->a_vals[i] );
 431                         if (s != NULL) {
 432                                 snprintf( textbuf, textlen,
 433                                         "object class '%s' requires attribute '%s'",
 434                                         aoc->a_vals[i].bv_val, s );
 435
 436                                 Debug( LDAP_DEBUG_ANY,
 437                                         "Entry (%s): %s\n",
 438                                         e->e_dn, textbuf, 0 );
 439
 440                                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 441                                 goto done;
 442                         }
 443
 444                         if( oc == slap_schema.si_oc_extensibleObject ) {
 445                                 extensible=1;
 446                         }
 447                 }
 448         }
 449
 450         if( extensible ) {
 451                 *text = NULL;
 452                 rc = LDAP_SUCCESS;
 453                 goto done;
 454         }
 455
 456         /* check that each attr in the entry is allowed by some oc */
 457         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 458                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 459
 460                 if( cr && cr->scr_required ) {
 461                         for( i=0; cr->scr_required[i]; i++ ) {
 462                                 if( cr->scr_required[i] == a->a_desc->ad_type ) {
 463                                         rc = LDAP_SUCCESS;
 464                                         break;
 465                                 }
 466                         }
 467                 }
 468
 469                 if( rc != LDAP_SUCCESS && cr && cr->scr_allowed ) {
 470                         for( i=0; cr->scr_allowed[i]; i++ ) {
 471                                 if( cr->scr_allowed[i] == a->a_desc->ad_type ) {
 472                                         rc = LDAP_SUCCESS;
 473                                         break;
 474                                 }
 475                         }
 476                 }
 477
 478                 if( rc != LDAP_SUCCESS )
 479                 {
 480                         rc = oc_check_allowed( a->a_desc->ad_type, socs, sc );
 481                 }
 482
 483                 if ( rc != LDAP_SUCCESS ) {
 484                         char *type = a->a_desc->ad_cname.bv_val;
 485
 486                         snprintf( textbuf, textlen,
 487                                 "attribute '%s' not allowed",
 488                                 type );
 489
 490                         Debug( LDAP_DEBUG_ANY,
 491                             "Entry (%s), %s\n",
 492                             e->e_dn, textbuf, 0 );
 493
 494                         goto done;
 495                 }
 496         }
 497
 498         *text = NULL;
 499 done:
 500         slap_sl_free( socs, op->o_tmpmemctx );
 501         return rc;
 502 }
 503
 504 static char *
 505 oc_check_required(
 506         Entry *e,
 507         ObjectClass *oc,
 508         struct berval *ocname )
 509 {
 510         AttributeType   *at;
 511         int             i;
 512         Attribute       *a;
 513
 514         Debug( LDAP_DEBUG_TRACE,
 515                 "oc_check_required entry (%s), objectClass \"%s\"\n",
 516                 e->e_dn, ocname->bv_val, 0 );
 517
 518
 519         /* check for empty oc_required */
 520         if(oc->soc_required == NULL) {
 521                 return NULL;
 522         }
 523
 524         /* for each required attribute */
 525         for ( i = 0; oc->soc_required[i] != NULL; i++ ) {
 526                 at = oc->soc_required[i];
 527                 /* see if it's in the entry */
 528                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 529                         if( a->a_desc->ad_type == at ) {
 530                                 break;
 531                         }
 532                 }
 533                 /* not there => schema violation */
 534                 if ( a == NULL ) {
 535                         return at->sat_cname.bv_val;
 536                 }
 537         }
 538
 539         return( NULL );
 540 }
 541
 542 int oc_check_allowed(
 543         AttributeType *at,
 544         ObjectClass **socs,
 545         ObjectClass *sc )
 546 {
 547         int             i, j;
 548
 549         Debug( LDAP_DEBUG_TRACE,
 550                 "oc_check_allowed type \"%s\"\n",
 551                 at->sat_cname.bv_val, 0, 0 );
 552
 553         /* always allow objectClass attribute */
 554         if ( strcasecmp( at->sat_cname.bv_val, "objectClass" ) == 0 ) {
 555                 return LDAP_SUCCESS;
 556         }
 557
 558         /*
 559          * All operational attributions are allowed by schema rules.
 560          */
 561         if( is_at_operational(at) ) {
 562                 return LDAP_SUCCESS;
 563         }
 564
 565         /* check to see if its allowed by the structuralObjectClass */
 566         if( sc ) {
 567                 /* does it require the type? */
 568                 for ( j = 0; sc->soc_required != NULL &&
 569                         sc->soc_required[j] != NULL; j++ )
 570                 {
 571                         if( at == sc->soc_required[j] ) {
 572                                 return LDAP_SUCCESS;
 573                         }
 574                 }
 575
 576                 /* does it allow the type? */
 577                 for ( j = 0; sc->soc_allowed != NULL &&
 578                         sc->soc_allowed[j] != NULL; j++ )
 579                 {
 580                         if( at == sc->soc_allowed[j] ) {
 581                                 return LDAP_SUCCESS;
 582                         }
 583                 }
 584         }
 585
 586         /* check that the type appears as req or opt in at least one oc */
 587         for ( i = 0; socs[i]; i++ ) {
 588                 /* if we know about the oc */
 589                 ObjectClass     *oc = socs[i];
 590                 /* extensibleObject allows all */
 591                 if ( oc == slap_schema.si_oc_extensibleObject ) {
 592                         return LDAP_SUCCESS;
 593                 }
 594                 if ( oc != NULL && oc->soc_kind != LDAP_SCHEMA_ABSTRACT &&
 595                         ( sc == NULL || oc->soc_kind == LDAP_SCHEMA_AUXILIARY ))
 596                 {
 597                         /* does it require the type? */
 598                         for ( j = 0; oc->soc_required != NULL &&
 599                                 oc->soc_required[j] != NULL; j++ )
 600                         {
 601                                 if( at == oc->soc_required[j] ) {
 602                                         return LDAP_SUCCESS;
 603                                 }
 604                         }
 605                         /* does it allow the type? */
 606                         for ( j = 0; oc->soc_allowed != NULL &&
 607                                 oc->soc_allowed[j] != NULL; j++ )
 608                         {
 609                                 if( at == oc->soc_allowed[j] ) {
 610                                         return LDAP_SUCCESS;
 611                                 }
 612                         }
 613                 }
 614         }
 615
 616         /* not allowed by any oc */
 617         return LDAP_OBJECT_CLASS_VIOLATION;
 618 }
 619
 620 /*
 621  * Determine the structural object class from a set of OIDs
 622  */
 623 int structural_class(
 624         BerVarray ocs,
 625         ObjectClass **scp,
 626         ObjectClass ***socsp,
 627         const char **text,
 628         char *textbuf, size_t textlen,
 629         void *ctx )
 630 {
 631         int i, nocs;
 632         ObjectClass *oc, **socs;
 633         ObjectClass *sc = NULL;
 634         int scn = -1;
 635
 636         *text = "structural_class: internal error";
 637
 638         /* count them */
 639         for( i=0; ocs[i].bv_val; i++ ) ;
 640         nocs = i;
 641
 642         socs = slap_sl_malloc( (nocs+1) * sizeof(ObjectClass *), ctx );
 643
 644         for( i=0; ocs[i].bv_val; i++ ) {
 645                 socs[i] = oc_bvfind( &ocs[i] );
 646
 647                 if( socs[i] == NULL ) {
 648                         snprintf( textbuf, textlen,
 649                                 "unrecognized objectClass '%s'",
 650                                 ocs[i].bv_val );
 651                         *text = textbuf;
 652                         goto fail;
 653                 }
 654         }
 655         socs[i] = NULL;
 656
 657         for( i=0; ocs[i].bv_val; i++ ) {
 658                 oc = socs[i];
 659                 if( oc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 660                         if( sc == NULL || is_object_subclass( sc, oc ) ) {
 661                                 sc = oc;
 662                                 scn = i;
 663
 664                         } else if ( !is_object_subclass( oc, sc ) ) {
 665                                 int j;
 666                                 ObjectClass *xc = NULL;
 667
 668                                 /* find common superior */
 669                                 for( j=i+1; ocs[j].bv_val; j++ ) {
 670                                         xc = socs[j];
 671
 672                                         if( xc == NULL ) {
 673                                                 snprintf( textbuf, textlen,
 674                                                         "unrecognized objectClass '%s'",
 675                                                         ocs[j].bv_val );
 676                                                 *text = textbuf;
 677                                                 goto fail;
 678                                         }
 679
 680                                         if( xc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 681                                                 xc = NULL;
 682                                                 continue;
 683                                         }
 684
 685                                         if( is_object_subclass( sc, xc ) &&
 686                                                 is_object_subclass( oc, xc ) )
 687                                         {
 688                                                 /* found common subclass */
 689                                                 break;
 690                                         }
 691
 692                                         xc = NULL;
 693                                 }
 694
 695                                 if( xc == NULL ) {
 696                                         /* no common subclass */
 697                                         snprintf( textbuf, textlen,
 698                                                 "invalid structural object class chain (%s/%s)",
 699                                                 ocs[scn].bv_val, ocs[i].bv_val );
 700                                         *text = textbuf;
 701                                         goto fail;
 702                                 }
 703                         }
 704                 }
 705         }
 706
 707         if( scp ) {
 708                 *scp = sc;
 709         }
 710
 711         if( sc == NULL ) {
 712                 *text = "no structural object class provided";
 713                 goto fail;
 714         }
 715
 716         if( scn < 0 ) {
 717                 *text = "invalid structural object class";
 718                 goto fail;
 719         }
 720
 721         if ( socsp ) {
 722                 *socsp = socs;
 723         } else {
 724                 slap_sl_free( socs, ctx );
 725         }
 726         *text = NULL;
 727
 728         return LDAP_SUCCESS;
 729
 730 fail:
 731         slap_sl_free( socs, ctx );
 732         return LDAP_OBJECT_CLASS_VIOLATION;
 733 }
 734
 735 /*
 736  * Return structural object class from list of modifications
 737  */
 738 int mods_structural_class(
 739         Modifications *mods,
 740         struct berval *sc,
 741         const char **text,
 742         char *textbuf, size_t textlen, void *ctx )
 743 {
 744         Modifications *ocmod = NULL;
 745         ObjectClass *ssc;
 746         int rc;
 747
 748         for( ; mods != NULL; mods = mods->sml_next ) {
 749                 if( mods->sml_desc == slap_schema.si_ad_objectClass ) {
 750                         if( ocmod != NULL ) {
 751                                 *text = "entry has multiple objectClass attributes";
 752                                 return LDAP_OBJECT_CLASS_VIOLATION;
 753                         }
 754                         ocmod = mods;
 755                 }
 756         }
 757
 758         if( ocmod == NULL ) {
 759                 *text = "entry has no objectClass attribute";
 760                 return LDAP_OBJECT_CLASS_VIOLATION;
 761         }
 762
 763         if( ocmod->sml_values == NULL || ocmod->sml_values[0].bv_val == NULL ) {
 764                 *text = "objectClass attribute has no values";
 765                 return LDAP_OBJECT_CLASS_VIOLATION;
 766         }
 767
 768         rc = structural_class( ocmod->sml_values, &ssc, NULL,
 769                 text, textbuf, textlen, ctx );
 770         if ( rc == LDAP_SUCCESS )
 771                 *sc = ssc->soc_cname;
 772         return rc;
 773 }
 774
 775
 776 static int
 777 entry_naming_check(
 778         Entry *e,
 779         int manage,
 780         int add_naming,
 781         const char** text,
 782         char *textbuf, size_t textlen )
 783 {
 784         /* naming check */
 785         LDAPRDN         rdn = NULL;
 786         const char      *p = NULL;
 787         ber_len_t       cnt;
 788         int             rc = LDAP_SUCCESS;
 789
 790         if ( BER_BVISEMPTY( &e->e_name )) {
 791                 return LDAP_SUCCESS;
 792         }
 793
 794         /*
 795          * Get attribute type(s) and attribute value(s) of our RDN
 796          */
 797         if ( ldap_bv2rdn( &e->e_name, &rdn, (char **)&p,
 798                 LDAP_DN_FORMAT_LDAP ) )
 799         {
 800                 *text = "unrecognized attribute type(s) in RDN";
 801                 return LDAP_INVALID_DN_SYNTAX;
 802         }
 803
 804         /* Check that each AVA of the RDN is present in the entry */
 805         /* FIXME: Should also check that each AVA lists a distinct type */
 806         for ( cnt = 0; rdn[cnt]; cnt++ ) {
 807                 LDAPAVA *ava = rdn[cnt];
 808                 AttributeDescription *desc = NULL;
 809                 Attribute *attr;
 810                 const char *errtext;
 811                 int add = 0;
 812
 813                 if( ava->la_flags & LDAP_AVA_BINARY ) {
 814                         snprintf( textbuf, textlen,
 815                                 "value of naming attribute '%s' in unsupported BER form",
 816                                 ava->la_attr.bv_val );
 817                         rc = LDAP_NAMING_VIOLATION;
 818                         break;
 819                 }
 820
 821                 rc = slap_bv2ad( &ava->la_attr, &desc, &errtext );
 822                 if ( rc != LDAP_SUCCESS ) {
 823                         snprintf( textbuf, textlen, "%s (in RDN)", errtext );
 824                         break;
 825                 }
 826
 827                 if( desc->ad_type->sat_usage ) {
 828                         snprintf( textbuf, textlen,
 829                                 "naming attribute '%s' is operational",
 830                                 ava->la_attr.bv_val );
 831                         rc = LDAP_NAMING_VIOLATION;
 832                         break;
 833                 }
 834
 835                 if( desc->ad_type->sat_collective ) {
 836                         snprintf( textbuf, textlen,
 837                                 "naming attribute '%s' is collective",
 838                                 ava->la_attr.bv_val );
 839                         rc = LDAP_NAMING_VIOLATION;
 840                         break;
 841                 }
 842
 843                 if( !manage && desc->ad_type->sat_obsolete ) {
 844                         snprintf( textbuf, textlen,
 845                                 "naming attribute '%s' is obsolete",
 846                                 ava->la_attr.bv_val );
 847                         rc = LDAP_NAMING_VIOLATION;
 848                         break;
 849                 }
 850
 851                 if( !desc->ad_type->sat_equality ) {
 852                         snprintf( textbuf, textlen,
 853                                 "naming attribute '%s' has no equality matching rule",
 854                                 ava->la_attr.bv_val );
 855                         rc = LDAP_NAMING_VIOLATION;
 856                         break;
 857                 }
 858
 859                 if( !desc->ad_type->sat_equality->smr_match ) {
 860                         snprintf( textbuf, textlen,
 861                                 "naming attribute '%s' has unsupported equality matching rule",
 862                                 ava->la_attr.bv_val );
 863                         rc = LDAP_NAMING_VIOLATION;
 864                         break;
 865                 }
 866
 867                 /* find the naming attribute */
 868                 attr = attr_find( e->e_attrs, desc );
 869                 if ( attr == NULL ) {
 870                         snprintf( textbuf, textlen,
 871                                 "naming attribute '%s' is not present in entry",
 872                                 ava->la_attr.bv_val );
 873                         if ( add_naming ) {
 874                                 add = 1;
 875
 876                         } else {
 877                                 rc = LDAP_NAMING_VIOLATION;
 878                         }
 879
 880                 } else {
 881                         rc = attr_valfind( attr, SLAP_MR_VALUE_OF_ASSERTION_SYNTAX|
 882                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 883                                 &ava->la_value, NULL, NULL );
 884
 885                         if ( rc != 0 ) {
 886                                 switch( rc ) {
 887                                 case LDAP_INAPPROPRIATE_MATCHING:
 888                                         snprintf( textbuf, textlen,
 889                                                 "inappropriate matching for naming attribute '%s'",
 890                                                 ava->la_attr.bv_val );
 891                                         break;
 892                                 case LDAP_INVALID_SYNTAX:
 893                                         snprintf( textbuf, textlen,
 894                                                 "value of naming attribute '%s' is invalid",
 895                                                 ava->la_attr.bv_val );
 896                                         break;
 897                                 case LDAP_NO_SUCH_ATTRIBUTE:
 898                                         if ( add_naming ) {
 899                                                 if ( is_at_single_value( desc->ad_type ) ) {
 900                                                         snprintf( textbuf, textlen,
 901                                                                 "value of single-valued naming attribute '%s' conflicts with value present in entry",
 902                                                                 ava->la_attr.bv_val );
 903
 904                                                 } else {
 905                                                         add = 1;
 906                                                         rc = LDAP_SUCCESS;
 907                                                 }
 908
 909                                         } else {
 910                                                 snprintf( textbuf, textlen,
 911                                                         "value of naming attribute '%s' is not present in entry",
 912                                                         ava->la_attr.bv_val );
 913                                         }
 914                                         break;
 915                                 default:
 916                                         snprintf( textbuf, textlen,
 917                                                 "naming attribute '%s' is inappropriate",
 918                                                 ava->la_attr.bv_val );
 919                                 }
 920
 921                                 if ( !add ) {
 922                                         rc = LDAP_NAMING_VIOLATION;
 923                                 }
 924                         }
 925                 }
 926
 927                 if ( add ) {
 928                         attr_merge_normalize_one( e, desc, &ava->la_value, NULL );
 929
 930                 } else if ( rc != LDAP_SUCCESS ) {
 931                         break;
 932                 }
 933         }
 934
 935         ldap_rdnfree( rdn );
 936         return rc;
 937 }
 938