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 1998-2008 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         const char** text,
  53         char *textbuf, size_t textlen )
  54 {
  55         Attribute       *a, *asc = NULL, *aoc = NULL;
  56         ObjectClass *sc, *oc, **socs = NULL;
  57         AttributeType *at;
  58         ContentRule *cr;
  59         int     rc, i;
  60         AttributeDescription *ad_structuralObjectClass
  61                 = slap_schema.si_ad_structuralObjectClass;
  62         AttributeDescription *ad_objectClass
  63                 = slap_schema.si_ad_objectClass;
  64         int extensible = 0;
  65         int subentry = is_entry_subentry( e );
  66         int collectiveSubentry = 0;
  67
  68         if ( SLAP_NO_SCHEMA_CHECK( op->o_bd )) {
  69                 return LDAP_SUCCESS;
  70         }
  71
  72         if ( get_no_schema_check( op ) ) {
  73                 return LDAP_SUCCESS;
  74         }
  75
  76         if( subentry ) {
  77                 collectiveSubentry = is_entry_collectiveAttributeSubentry( e );
  78         }
  79
  80         *text = textbuf;
  81
  82         /* misc attribute checks */
  83         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
  84                 const char *type = a->a_desc->ad_cname.bv_val;
  85
  86                 /* there should be at least one value */
  87                 assert( a->a_vals != NULL );
  88                 assert( a->a_vals[0].bv_val != NULL );
  89
  90                 if( a->a_desc->ad_type->sat_check ) {
  91                         rc = (a->a_desc->ad_type->sat_check)(
  92                                 op->o_bd, e, a, text, textbuf, textlen );
  93                         if( rc != LDAP_SUCCESS ) {
  94                                 return rc;
  95                         }
  96                 }
  97
  98                 if( a->a_desc == ad_structuralObjectClass )
  99                         asc = a;
 100                 else if ( a->a_desc == ad_objectClass )
 101                         aoc = a;
 102
 103                 if( !collectiveSubentry && is_at_collective( a->a_desc->ad_type ) ) {
 104                         snprintf( textbuf, textlen,
 105                                 "'%s' can only appear in collectiveAttributeSubentry",
 106                                 type );
 107                         return LDAP_OBJECT_CLASS_VIOLATION;
 108                 }
 109
 110                 /* if single value type, check for multiple values */
 111                 if( is_at_single_value( a->a_desc->ad_type ) &&
 112                         a->a_vals[1].bv_val != NULL )
 113                 {
 114                         snprintf( textbuf, textlen,
 115                                 "attribute '%s' cannot have multiple values",
 116                                 type );
 117
 118                         Debug( LDAP_DEBUG_ANY,
 119                             "Entry (%s), %s\n",
 120                             e->e_dn, textbuf, 0 );
 121
 122                         return LDAP_CONSTRAINT_VIOLATION;
 123                 }
 124         }
 125
 126         /* check the object class attribute */
 127         if ( aoc == NULL ) {
 128                 Debug( LDAP_DEBUG_ANY, "No objectClass for entry (%s)\n",
 129                     e->e_dn, 0, 0 );
 130
 131                 *text = "no objectClass attribute";
 132                 return LDAP_OBJECT_CLASS_VIOLATION;
 133         }
 134
 135         assert( aoc->a_vals != NULL );
 136         assert( aoc->a_vals[0].bv_val != NULL );
 137
 138         /* check the structural object class attribute */
 139         if ( asc == NULL && !add ) {
 140                 Debug( LDAP_DEBUG_ANY,
 141                         "No structuralObjectClass for entry (%s)\n",
 142                     e->e_dn, 0, 0 );
 143
 144                 *text = "no structuralObjectClass operational attribute";
 145                 return LDAP_OTHER;
 146         }
 147
 148         rc = structural_class( aoc->a_vals, &oc, &socs, text, textbuf, textlen,
 149                 op->o_tmpmemctx );
 150         if( rc != LDAP_SUCCESS ) {
 151                 return rc;
 152         }
 153
 154         if ( asc == NULL && add ) {
 155                 attr_merge_one( e, ad_structuralObjectClass, &oc->soc_cname, NULL );
 156                 asc = attr_find( e->e_attrs, ad_structuralObjectClass );
 157                 sc = oc;
 158                 goto got_soc;
 159         }
 160
 161         assert( asc->a_vals != NULL );
 162         assert( asc->a_vals[0].bv_val != NULL );
 163         assert( asc->a_vals[1].bv_val == NULL );
 164
 165         sc = oc_bvfind( &asc->a_vals[0] );
 166         if( sc == NULL ) {
 167                 snprintf( textbuf, textlen,
 168                         "unrecognized structuralObjectClass '%s'",
 169                         asc->a_vals[0].bv_val );
 170
 171                 Debug( LDAP_DEBUG_ANY,
 172                         "entry_check_schema(%s): %s\n",
 173                         e->e_dn, textbuf, 0 );
 174
 175                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 176                 goto done;
 177         }
 178
 179         if( sc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 180                 snprintf( textbuf, textlen,
 181                         "structuralObjectClass '%s' is not STRUCTURAL",
 182                         asc->a_vals[0].bv_val );
 183
 184                 Debug( LDAP_DEBUG_ANY,
 185                         "entry_check_schema(%s): %s\n",
 186                         e->e_dn, textbuf, 0 );
 187
 188                 rc = LDAP_OTHER;
 189                 goto done;
 190         }
 191
 192 got_soc:
 193         if( !manage && sc->soc_obsolete ) {
 194                 snprintf( textbuf, textlen,
 195                         "structuralObjectClass '%s' is OBSOLETE",
 196                         asc->a_vals[0].bv_val );
 197
 198                 Debug( LDAP_DEBUG_ANY,
 199                         "entry_check_schema(%s): %s\n",
 200                         e->e_dn, textbuf, 0 );
 201
 202                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 203                 goto done;
 204         }
 205
 206         *text = textbuf;
 207
 208         if ( oc == NULL ) {
 209                 snprintf( textbuf, textlen,
 210                         "unrecognized objectClass '%s'",
 211                         aoc->a_vals[0].bv_val );
 212                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 213                 goto done;
 214
 215         } else if ( sc != slap_schema.si_oc_glue && sc != oc ) {
 216                 snprintf( textbuf, textlen,
 217                         "structural object class modification "
 218                         "from '%s' to '%s' not allowed",
 219                         asc->a_vals[0].bv_val, oc->soc_cname.bv_val );
 220                 rc = LDAP_NO_OBJECT_CLASS_MODS;
 221                 goto done;
 222         } else if ( sc == slap_schema.si_oc_glue ) {
 223                 sc = oc;
 224         }
 225
 226         /* naming check */
 227         if ( !is_entry_glue ( e ) ) {
 228                 rc = entry_naming_check( e, manage, add, text, textbuf, textlen );
 229                 if( rc != LDAP_SUCCESS ) {
 230                         goto done;
 231                 }
 232         } else {
 233                 /* Glue Entry */
 234         }
 235
 236         /* find the content rule for the structural class */
 237         cr = cr_find( sc->soc_oid );
 238
 239         /* the cr must be same as the structural class */
 240         assert( !cr || !strcmp( cr->scr_oid, sc->soc_oid ) );
 241
 242         /* check that the entry has required attrs of the content rule */
 243         if( cr ) {
 244                 if( !manage && cr->scr_obsolete ) {
 245                         snprintf( textbuf, textlen,
 246                                 "content rule '%s' is obsolete",
 247                                 ldap_contentrule2name( &cr->scr_crule ));
 248
 249                         Debug( LDAP_DEBUG_ANY,
 250                                 "Entry (%s): %s\n",
 251                                 e->e_dn, textbuf, 0 );
 252
 253                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 254                         goto done;
 255                 }
 256
 257                 if( cr->scr_required ) for( i=0; cr->scr_required[i]; i++ ) {
 258                         at = cr->scr_required[i];
 259
 260                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 261                                 if( a->a_desc->ad_type == at ) {
 262                                         break;
 263                                 }
 264                         }
 265
 266                         /* not there => schema violation */
 267                         if ( a == NULL ) {
 268                                 snprintf( textbuf, textlen,
 269                                         "content rule '%s' requires attribute '%s'",
 270                                         ldap_contentrule2name( &cr->scr_crule ),
 271                                         at->sat_cname.bv_val );
 272
 273                                 Debug( LDAP_DEBUG_ANY,
 274                                         "Entry (%s): %s\n",
 275                                         e->e_dn, textbuf, 0 );
 276
 277                                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 278                                 goto done;
 279                         }
 280                 }
 281
 282                 if( cr->scr_precluded ) for( i=0; cr->scr_precluded[i]; i++ ) {
 283                         at = cr->scr_precluded[i];
 284
 285                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 286                                 if( a->a_desc->ad_type == at ) {
 287                                         break;
 288                                 }
 289                         }
 290
 291                         /* there => schema violation */
 292                         if ( a != NULL ) {
 293                                 snprintf( textbuf, textlen,
 294                                         "content rule '%s' precluded attribute '%s'",
 295                                         ldap_contentrule2name( &cr->scr_crule ),
 296                                         at->sat_cname.bv_val );
 297
 298                                 Debug( LDAP_DEBUG_ANY,
 299                                         "Entry (%s): %s\n",
 300                                         e->e_dn, textbuf, 0 );
 301
 302                                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 303                                 goto done;
 304                         }
 305                 }
 306         }
 307
 308         /* check that the entry has required attrs for each oc */
 309         for ( i = 0; socs[i]; i++ ) {
 310                 oc = socs[i];
 311                 if ( !manage && oc->soc_obsolete ) {
 312                         /* disallow obsolete classes */
 313                         snprintf( textbuf, textlen,
 314                                 "objectClass '%s' is OBSOLETE",
 315                                 aoc->a_vals[i].bv_val );
 316
 317                         Debug( LDAP_DEBUG_ANY,
 318                                 "entry_check_schema(%s): %s\n",
 319                                 e->e_dn, textbuf, 0 );
 320
 321                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 322                         goto done;
 323                 }
 324
 325                 if ( oc->soc_check ) {
 326                         rc = (oc->soc_check)( op->o_bd, e, oc,
 327                                 text, textbuf, textlen );
 328                         if( rc != LDAP_SUCCESS ) {
 329                                 goto done;
 330                         }
 331                 }
 332
 333                 if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT ) {
 334                         /* object class is abstract */
 335                         if ( oc != slap_schema.si_oc_top &&
 336                                 !is_object_subclass( oc, sc ))
 337                         {
 338                                 int j;
 339                                 ObjectClass *xc = NULL;
 340                                 for( j=0; socs[j]; j++ ) {
 341                                         if( i != j ) {
 342                                                 xc = socs[j];
 343
 344                                                 /* since we previous check against the
 345                                                  * structural object of this entry, the
 346                                                  * abstract class must be a (direct or indirect)
 347                                                  * superclass of one of the auxiliary classes of
 348                                                  * the entry.
 349                                                  */
 350                                                 if ( xc->soc_kind == LDAP_SCHEMA_AUXILIARY &&
 351                                                         is_object_subclass( oc, xc ) )
 352                                                 {
 353                                                         xc = NULL;
 354                                                         break;
 355                                                 }
 356                                         }
 357                                 }
 358
 359                                 if( xc != NULL ) {
 360                                         snprintf( textbuf, textlen, "instantiation of "
 361                                                 "abstract objectClass '%s' not allowed",
 362                                                 aoc->a_vals[i].bv_val );
 363
 364                                         Debug( LDAP_DEBUG_ANY,
 365                                                 "entry_check_schema(%s): %s\n",
 366                                                 e->e_dn, textbuf, 0 );
 367
 368                                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 369                                         goto done;
 370                                 }
 371                         }
 372
 373                 } else if ( oc->soc_kind != LDAP_SCHEMA_STRUCTURAL || oc == sc ) {
 374                         char *s;
 375
 376                         if( oc->soc_kind == LDAP_SCHEMA_AUXILIARY ) {
 377                                 int k;
 378
 379                                 if( cr ) {
 380                                         int j;
 381
 382                                         k = -1;
 383                                         if( cr->scr_auxiliaries ) {
 384                                                 for( j = 0; cr->scr_auxiliaries[j]; j++ ) {
 385                                                         if( cr->scr_auxiliaries[j] == oc ) {
 386                                                                 k = 0;
 387                                                                 break;
 388                                                         }
 389                                                 }
 390                                         }
 391                                         if ( k ) {
 392                                                 snprintf( textbuf, textlen,
 393                                                         "class '%s' not allowed by content rule '%s'",
 394                                                         oc->soc_cname.bv_val,
 395                                                         ldap_contentrule2name( &cr->scr_crule ) );
 396                                         }
 397                                 } else if ( global_disallows & SLAP_DISALLOW_AUX_WO_CR ) {
 398                                         k = -1;
 399                                         snprintf( textbuf, textlen,
 400                                                 "class '%s' not allowed by any content rule",
 401                                                 oc->soc_cname.bv_val );
 402                                 } else {
 403                                         k = 0;
 404                                 }
 405
 406                                 if( k == -1 ) {
 407                                         Debug( LDAP_DEBUG_ANY,
 408                                                 "Entry (%s): %s\n",
 409                                                 e->e_dn, textbuf, 0 );
 410
 411                                         rc = LDAP_OBJECT_CLASS_VIOLATION;
 412                                         goto done;
 413                                 }
 414                         }
 415
 416                         s = oc_check_required( e, oc, &aoc->a_vals[i] );
 417                         if (s != NULL) {
 418                                 snprintf( textbuf, textlen,
 419                                         "object class '%s' requires attribute '%s'",
 420                                         aoc->a_vals[i].bv_val, s );
 421
 422                                 Debug( LDAP_DEBUG_ANY,
 423                                         "Entry (%s): %s\n",
 424                                         e->e_dn, textbuf, 0 );
 425
 426                                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 427                                 goto done;
 428                         }
 429
 430                         if( oc == slap_schema.si_oc_extensibleObject ) {
 431                                 extensible=1;
 432                         }
 433                 }
 434         }
 435
 436         if( extensible ) {
 437                 *text = NULL;
 438                 rc = LDAP_SUCCESS;
 439                 goto done;
 440         }
 441
 442         /* check that each attr in the entry is allowed by some oc */
 443         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 444                 rc = LDAP_OBJECT_CLASS_VIOLATION;
 445
 446                 if( cr && cr->scr_required ) {
 447                         for( i=0; cr->scr_required[i]; i++ ) {
 448                                 if( cr->scr_required[i] == a->a_desc->ad_type ) {
 449                                         rc = LDAP_SUCCESS;
 450                                         break;
 451                                 }
 452                         }
 453                 }
 454
 455                 if( rc != LDAP_SUCCESS && cr && cr->scr_allowed ) {
 456                         for( i=0; cr->scr_allowed[i]; i++ ) {
 457                                 if( cr->scr_allowed[i] == a->a_desc->ad_type ) {
 458                                         rc = LDAP_SUCCESS;
 459                                         break;
 460                                 }
 461                         }
 462                 }
 463
 464                 if( rc != LDAP_SUCCESS )
 465                 {
 466                         rc = oc_check_allowed( a->a_desc->ad_type, socs, sc );
 467                 }
 468
 469                 if ( rc != LDAP_SUCCESS ) {
 470                         char *type = a->a_desc->ad_cname.bv_val;
 471
 472                         snprintf( textbuf, textlen,
 473                                 "attribute '%s' not allowed",
 474                                 type );
 475
 476                         Debug( LDAP_DEBUG_ANY,
 477                             "Entry (%s), %s\n",
 478                             e->e_dn, textbuf, 0 );
 479
 480                         goto done;
 481                 }
 482         }
 483
 484         *text = NULL;
 485 done:
 486         slap_sl_free( socs, op->o_tmpmemctx );
 487         return rc;
 488 }
 489
 490 static char *
 491 oc_check_required(
 492         Entry *e,
 493         ObjectClass *oc,
 494         struct berval *ocname )
 495 {
 496         AttributeType   *at;
 497         int             i;
 498         Attribute       *a;
 499
 500         Debug( LDAP_DEBUG_TRACE,
 501                 "oc_check_required entry (%s), objectClass \"%s\"\n",
 502                 e->e_dn, ocname->bv_val, 0 );
 503
 504
 505         /* check for empty oc_required */
 506         if(oc->soc_required == NULL) {
 507                 return NULL;
 508         }
 509
 510         /* for each required attribute */
 511         for ( i = 0; oc->soc_required[i] != NULL; i++ ) {
 512                 at = oc->soc_required[i];
 513                 /* see if it's in the entry */
 514                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 515                         if( a->a_desc->ad_type == at ) {
 516                                 break;
 517                         }
 518                 }
 519                 /* not there => schema violation */
 520                 if ( a == NULL ) {
 521                         return at->sat_cname.bv_val;
 522                 }
 523         }
 524
 525         return( NULL );
 526 }
 527
 528 int oc_check_allowed(
 529         AttributeType *at,
 530         ObjectClass **socs,
 531         ObjectClass *sc )
 532 {
 533         int             i, j;
 534
 535         Debug( LDAP_DEBUG_TRACE,
 536                 "oc_check_allowed type \"%s\"\n",
 537                 at->sat_cname.bv_val, 0, 0 );
 538
 539         /* always allow objectClass attribute */
 540         if ( strcasecmp( at->sat_cname.bv_val, "objectClass" ) == 0 ) {
 541                 return LDAP_SUCCESS;
 542         }
 543
 544         /*
 545          * All operational attributions are allowed by schema rules.
 546          */
 547         if( is_at_operational(at) ) {
 548                 return LDAP_SUCCESS;
 549         }
 550
 551         /* check to see if its allowed by the structuralObjectClass */
 552         if( sc ) {
 553                 /* does it require the type? */
 554                 for ( j = 0; sc->soc_required != NULL &&
 555                         sc->soc_required[j] != NULL; j++ )
 556                 {
 557                         if( at == sc->soc_required[j] ) {
 558                                 return LDAP_SUCCESS;
 559                         }
 560                 }
 561
 562                 /* does it allow the type? */
 563                 for ( j = 0; sc->soc_allowed != NULL &&
 564                         sc->soc_allowed[j] != NULL; j++ )
 565                 {
 566                         if( at == sc->soc_allowed[j] ) {
 567                                 return LDAP_SUCCESS;
 568                         }
 569                 }
 570         }
 571
 572         /* check that the type appears as req or opt in at least one oc */
 573         for ( i = 0; socs[i]; i++ ) {
 574                 /* if we know about the oc */
 575                 ObjectClass     *oc = socs[i];
 576                 /* extensibleObject allows all */
 577                 if ( oc == slap_schema.si_oc_extensibleObject ) {
 578                         return LDAP_SUCCESS;
 579                 }
 580                 if ( oc != NULL && oc->soc_kind != LDAP_SCHEMA_ABSTRACT &&
 581                         ( sc == NULL || oc->soc_kind == LDAP_SCHEMA_AUXILIARY ))
 582                 {
 583                         /* does it require the type? */
 584                         for ( j = 0; oc->soc_required != NULL &&
 585                                 oc->soc_required[j] != NULL; j++ )
 586                         {
 587                                 if( at == oc->soc_required[j] ) {
 588                                         return LDAP_SUCCESS;
 589                                 }
 590                         }
 591                         /* does it allow the type? */
 592                         for ( j = 0; oc->soc_allowed != NULL &&
 593                                 oc->soc_allowed[j] != NULL; j++ )
 594                         {
 595                                 if( at == oc->soc_allowed[j] ) {
 596                                         return LDAP_SUCCESS;
 597                                 }
 598                         }
 599                 }
 600         }
 601
 602         /* not allowed by any oc */
 603         return LDAP_OBJECT_CLASS_VIOLATION;
 604 }
 605
 606 /*
 607  * Determine the structural object class from a set of OIDs
 608  */
 609 int structural_class(
 610         BerVarray ocs,
 611         ObjectClass **scp,
 612         ObjectClass ***socsp,
 613         const char **text,
 614         char *textbuf, size_t textlen,
 615         void *ctx )
 616 {
 617         int i, nocs;
 618         ObjectClass *oc, **socs;
 619         ObjectClass *sc = NULL;
 620         int scn = -1;
 621
 622         *text = "structural_class: internal error";
 623
 624         /* count them */
 625         for( i=0; ocs[i].bv_val; i++ ) ;
 626         nocs = i;
 627
 628         socs = slap_sl_malloc( (nocs+1) * sizeof(ObjectClass *), ctx );
 629
 630         for( i=0; ocs[i].bv_val; i++ ) {
 631                 socs[i] = oc_bvfind( &ocs[i] );
 632
 633                 if( socs[i] == NULL ) {
 634                         snprintf( textbuf, textlen,
 635                                 "unrecognized objectClass '%s'",
 636                                 ocs[i].bv_val );
 637                         *text = textbuf;
 638                         goto fail;
 639                 }
 640         }
 641         socs[i] = NULL;
 642
 643         for( i=0; ocs[i].bv_val; i++ ) {
 644                 oc = socs[i];
 645                 if( oc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 646                         if( sc == NULL || is_object_subclass( sc, oc ) ) {
 647                                 sc = oc;
 648                                 scn = i;
 649
 650                         } else if ( !is_object_subclass( oc, sc ) ) {
 651                                 int j;
 652                                 ObjectClass *xc = NULL;
 653
 654                                 /* find common superior */
 655                                 for( j=i+1; ocs[j].bv_val; j++ ) {
 656                                         xc = socs[j];
 657
 658                                         if( xc == NULL ) {
 659                                                 snprintf( textbuf, textlen,
 660                                                         "unrecognized objectClass '%s'",
 661                                                         ocs[j].bv_val );
 662                                                 *text = textbuf;
 663                                                 goto fail;
 664                                         }
 665
 666                                         if( xc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 667                                                 xc = NULL;
 668                                                 continue;
 669                                         }
 670
 671                                         if( is_object_subclass( sc, xc ) &&
 672                                                 is_object_subclass( oc, xc ) )
 673                                         {
 674                                                 /* found common subclass */
 675                                                 break;
 676                                         }
 677
 678                                         xc = NULL;
 679                                 }
 680
 681                                 if( xc == NULL ) {
 682                                         /* no common subclass */
 683                                         snprintf( textbuf, textlen,
 684                                                 "invalid structural object class chain (%s/%s)",
 685                                                 ocs[scn].bv_val, ocs[i].bv_val );
 686                                         *text = textbuf;
 687                                         goto fail;
 688                                 }
 689                         }
 690                 }
 691         }
 692
 693         if( scp ) {
 694                 *scp = sc;
 695         }
 696
 697         if( sc == NULL ) {
 698                 *text = "no structural object class provided";
 699                 goto fail;
 700         }
 701
 702         if( scn < 0 ) {
 703                 *text = "invalid structural object class";
 704                 goto fail;
 705         }
 706
 707         if ( socsp ) {
 708                 *socsp = socs;
 709         } else {
 710                 slap_sl_free( socs, ctx );
 711         }
 712         *text = NULL;
 713
 714         return LDAP_SUCCESS;
 715
 716 fail:
 717         slap_sl_free( socs, ctx );
 718         return LDAP_OBJECT_CLASS_VIOLATION;
 719 }
 720
 721 /*
 722  * Return structural object class from list of modifications
 723  */
 724 int mods_structural_class(
 725         Modifications *mods,
 726         struct berval *sc,
 727         const char **text,
 728         char *textbuf, size_t textlen, void *ctx )
 729 {
 730         Modifications *ocmod = NULL;
 731         ObjectClass *ssc;
 732         int rc;
 733
 734         for( ; mods != NULL; mods = mods->sml_next ) {
 735                 if( mods->sml_desc == slap_schema.si_ad_objectClass ) {
 736                         if( ocmod != NULL ) {
 737                                 *text = "entry has multiple objectClass attributes";
 738                                 return LDAP_OBJECT_CLASS_VIOLATION;
 739                         }
 740                         ocmod = mods;
 741                 }
 742         }
 743
 744         if( ocmod == NULL ) {
 745                 *text = "entry has no objectClass attribute";
 746                 return LDAP_OBJECT_CLASS_VIOLATION;
 747         }
 748
 749         if( ocmod->sml_values == NULL || ocmod->sml_values[0].bv_val == NULL ) {
 750                 *text = "objectClass attribute has no values";
 751                 return LDAP_OBJECT_CLASS_VIOLATION;
 752         }
 753
 754         rc = structural_class( ocmod->sml_values, &ssc, NULL,
 755                 text, textbuf, textlen, ctx );
 756         if ( rc == LDAP_SUCCESS )
 757                 *sc = ssc->soc_cname;
 758         return rc;
 759 }
 760
 761
 762 static int
 763 entry_naming_check(
 764         Entry *e,
 765         int manage,
 766         int add_naming,
 767         const char** text,
 768         char *textbuf, size_t textlen )
 769 {
 770         /* naming check */
 771         LDAPRDN         rdn = NULL;
 772         const char      *p = NULL;
 773         ber_len_t       cnt;
 774         int             rc = LDAP_SUCCESS;
 775
 776         if ( BER_BVISEMPTY( &e->e_name )) {
 777                 return LDAP_SUCCESS;
 778         }
 779
 780         /*
 781          * Get attribute type(s) and attribute value(s) of our RDN
 782          */
 783         if ( ldap_bv2rdn( &e->e_name, &rdn, (char **)&p,
 784                 LDAP_DN_FORMAT_LDAP ) )
 785         {
 786                 *text = "unrecongized attribute type(s) in RDN";
 787                 return LDAP_INVALID_DN_SYNTAX;
 788         }
 789
 790         /* Check that each AVA of the RDN is present in the entry */
 791         /* FIXME: Should also check that each AVA lists a distinct type */
 792         for ( cnt = 0; rdn[cnt]; cnt++ ) {
 793                 LDAPAVA *ava = rdn[cnt];
 794                 AttributeDescription *desc = NULL;
 795                 Attribute *attr;
 796                 const char *errtext;
 797                 int add = 0;
 798
 799                 if( ava->la_flags & LDAP_AVA_BINARY ) {
 800                         snprintf( textbuf, textlen,
 801                                 "value of naming attribute '%s' in unsupported BER form",
 802                                 ava->la_attr.bv_val );
 803                         rc = LDAP_NAMING_VIOLATION;
 804                 }
 805
 806                 rc = slap_bv2ad( &ava->la_attr, &desc, &errtext );
 807                 if ( rc != LDAP_SUCCESS ) {
 808                         snprintf( textbuf, textlen, "%s (in RDN)", errtext );
 809                         break;
 810                 }
 811
 812                 if( desc->ad_type->sat_usage ) {
 813                         snprintf( textbuf, textlen,
 814                                 "naming attribute '%s' is operational",
 815                                 ava->la_attr.bv_val );
 816                         rc = LDAP_NAMING_VIOLATION;
 817                         break;
 818                 }
 819
 820                 if( desc->ad_type->sat_collective ) {
 821                         snprintf( textbuf, textlen,
 822                                 "naming attribute '%s' is collective",
 823                                 ava->la_attr.bv_val );
 824                         rc = LDAP_NAMING_VIOLATION;
 825                         break;
 826                 }
 827
 828                 if( !manage && desc->ad_type->sat_obsolete ) {
 829                         snprintf( textbuf, textlen,
 830                                 "naming attribute '%s' is obsolete",
 831                                 ava->la_attr.bv_val );
 832                         rc = LDAP_NAMING_VIOLATION;
 833                         break;
 834                 }
 835
 836                 if( !desc->ad_type->sat_equality ) {
 837                         snprintf( textbuf, textlen,
 838                                 "naming attribute '%s' has no equality matching rule",
 839                                 ava->la_attr.bv_val );
 840                         rc = LDAP_NAMING_VIOLATION;
 841                         break;
 842                 }
 843
 844                 if( !desc->ad_type->sat_equality->smr_match ) {
 845                         snprintf( textbuf, textlen,
 846                                 "naming attribute '%s' has unsupported equality matching rule",
 847                                 ava->la_attr.bv_val );
 848                         rc = LDAP_NAMING_VIOLATION;
 849                         break;
 850                 }
 851
 852                 /* find the naming attribute */
 853                 attr = attr_find( e->e_attrs, desc );
 854                 if ( attr == NULL ) {
 855                         snprintf( textbuf, textlen,
 856                                 "naming attribute '%s' is not present in entry",
 857                                 ava->la_attr.bv_val );
 858                         if ( add_naming ) {
 859                                 add = 1;
 860
 861                         } else {
 862                                 rc = LDAP_NAMING_VIOLATION;
 863                         }
 864
 865                 } else {
 866                         rc = attr_valfind( attr, SLAP_MR_VALUE_OF_ASSERTION_SYNTAX|
 867                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 868                                 &ava->la_value, NULL, NULL );
 869
 870                         if( rc != 0 ) {
 871                                 switch( rc ) {
 872                                 case LDAP_INAPPROPRIATE_MATCHING:
 873                                         snprintf( textbuf, textlen,
 874                                                 "inappropriate matching for naming attribute '%s'",
 875                                                 ava->la_attr.bv_val );
 876                                         break;
 877                                 case LDAP_INVALID_SYNTAX:
 878                                         snprintf( textbuf, textlen,
 879                                                 "value of naming attribute '%s' is invalid",
 880                                                 ava->la_attr.bv_val );
 881                                         break;
 882                                 case LDAP_NO_SUCH_ATTRIBUTE:
 883                                         snprintf( textbuf, textlen,
 884                                                 "value of naming attribute '%s' is not present in entry",
 885                                                 ava->la_attr.bv_val );
 886                                         if ( add_naming ) {
 887                                                 add = 1;
 888                                                 rc = LDAP_SUCCESS;
 889                                         }
 890                                         break;
 891                                 default:
 892                                         snprintf( textbuf, textlen,
 893                                                 "naming attribute '%s' is inappropriate",
 894                                                 ava->la_attr.bv_val );
 895                                 }
 896
 897                                 if ( !add ) {
 898                                         rc = LDAP_NAMING_VIOLATION;
 899                                 }
 900                         }
 901                 }
 902
 903                 if ( add ) {
 904                         attr_merge_normalize_one( e, desc, &ava->la_value, NULL );
 905
 906                 } else if ( rc != LDAP_SUCCESS ) {
 907                         break;
 908                 }
 909         }
 910
 911         ldap_rdnfree( rdn );
 912         return rc;
 913 }
 914