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

   1 /* schema_check.c - routines to enforce schema definitions */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/ctype.h>
  13 #include <ac/string.h>
  14 #include <ac/socket.h>
  15
  16 #include "slap.h"
  17 #include "ldap_pvt.h"
  18
  19 static char * oc_check_required(
  20         Entry *e,
  21         ObjectClass *oc,
  22         struct berval *ocname );
  23
  24 static int entry_naming_check(
  25         Entry *e,
  26         const char** text,
  27         char *textbuf, size_t textlen );
  28 /*
  29  * entry_schema_check - check that entry e conforms to the schema required
  30  * by its object class(es).
  31  *
  32  * returns 0 if so, non-zero otherwise.
  33  */
  34
  35 int
  36 entry_schema_check(
  37         Backend *be,
  38         Entry *e,
  39         Attribute *oldattrs,
  40         const char** text,
  41         char *textbuf, size_t textlen )
  42 {
  43         Attribute       *a, *asc, *aoc;
  44         ObjectClass *sc, *oc;
  45 #ifdef SLAP_EXTENDED_SCHEMA
  46         AttributeType *at;
  47         ContentRule *cr;
  48 #endif
  49         int     rc, i;
  50         struct berval nsc;
  51         AttributeDescription *ad_structuralObjectClass
  52                 = slap_schema.si_ad_structuralObjectClass;
  53         AttributeDescription *ad_objectClass
  54                 = slap_schema.si_ad_objectClass;
  55         int extensible = 0;
  56         int subentry = is_entry_subentry( e );
  57         int collectiveSubentry = 0;
  58
  59         if( subentry ) {
  60                 collectiveSubentry = is_entry_collectiveAttributeSubentry( e );
  61         }
  62
  63         *text = textbuf;
  64
  65         /* misc attribute checks */
  66         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
  67                 const char *type = a->a_desc->ad_cname.bv_val;
  68
  69                 /* there should be at least one value */
  70                 assert( a->a_vals );
  71                 assert( a->a_vals[0].bv_val != NULL );
  72
  73                 if( a->a_desc->ad_type->sat_check ) {
  74                         int rc = (a->a_desc->ad_type->sat_check)(
  75                                 be, e, a, text, textbuf, textlen );
  76                         if( rc != LDAP_SUCCESS ) {
  77                                 return rc;
  78                         }
  79                 }
  80
  81                 if( !collectiveSubentry && is_at_collective( a->a_desc->ad_type ) ) {
  82                         snprintf( textbuf, textlen,
  83                                 "'%s' can only appear in collectiveAttributeSubentry",
  84                                 type );
  85                         return LDAP_OBJECT_CLASS_VIOLATION;
  86                 }
  87
  88                 /* if single value type, check for multiple values */
  89                 if( is_at_single_value( a->a_desc->ad_type ) &&
  90                         a->a_vals[1].bv_val != NULL )
  91                 {
  92                         snprintf( textbuf, textlen,
  93                                 "attribute '%s' cannot have multiple values",
  94                                 type );
  95
  96 #ifdef NEW_LOGGING
  97                         LDAP_LOG( OPERATION, INFO,
  98                                 "entry_schema_check: dn=\"%s\" %s\n", e->e_dn, textbuf, 0 );
  99 #else
 100                         Debug( LDAP_DEBUG_ANY,
 101                             "Entry (%s), %s\n",
 102                             e->e_dn, textbuf, 0 );
 103 #endif
 104
 105                         return LDAP_CONSTRAINT_VIOLATION;
 106                 }
 107         }
 108
 109         /* it's a REALLY bad idea to disable schema checks */
 110         if( !global_schemacheck ) return LDAP_SUCCESS;
 111
 112         /* find the structural object class attribute */
 113         asc = attr_find( e->e_attrs, ad_structuralObjectClass );
 114         if ( asc == NULL ) {
 115 #ifdef NEW_LOGGING
 116                 LDAP_LOG( OPERATION, INFO,
 117                         "entry_schema_check: No structuralObjectClass for entry (%s)\n",
 118                         e->e_dn, 0, 0 );
 119 #else
 120                 Debug( LDAP_DEBUG_ANY,
 121                         "No structuralObjectClass for entry (%s)\n",
 122                     e->e_dn, 0, 0 );
 123 #endif
 124
 125                 *text = "no structuralObjectClass operational attribute";
 126                 return LDAP_OTHER;
 127         }
 128
 129         assert( asc->a_vals != NULL );
 130         assert( asc->a_vals[0].bv_val != NULL );
 131         assert( asc->a_vals[1].bv_val == NULL );
 132
 133         sc = oc_bvfind( &asc->a_vals[0] );
 134         if( sc == NULL ) {
 135                 snprintf( textbuf, textlen,
 136                         "unrecognized structuralObjectClass '%s'",
 137                         asc->a_vals[0].bv_val );
 138
 139 #ifdef NEW_LOGGING
 140                 LDAP_LOG( OPERATION, INFO,
 141                         "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
 142 #else
 143                 Debug( LDAP_DEBUG_ANY,
 144                         "entry_check_schema(%s): %s\n",
 145                         e->e_dn, textbuf, 0 );
 146 #endif
 147
 148                 return LDAP_OBJECT_CLASS_VIOLATION;
 149         }
 150
 151         if( sc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 152                 snprintf( textbuf, textlen,
 153                         "structuralObjectClass '%s' is not STRUCTURAL",
 154                         asc->a_vals[0].bv_val );
 155
 156 #ifdef NEW_LOGGING
 157                 LDAP_LOG( OPERATION, INFO,
 158                         "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
 159 #else
 160                 Debug( LDAP_DEBUG_ANY,
 161                         "entry_check_schema(%s): %s\n",
 162                         e->e_dn, textbuf, 0 );
 163 #endif
 164
 165                 return LDAP_OTHER;
 166         }
 167
 168         if( sc->soc_obsolete ) {
 169                 snprintf( textbuf, textlen,
 170                         "structuralObjectClass '%s' is OBSOLETE",
 171                         asc->a_vals[0].bv_val );
 172
 173 #ifdef NEW_LOGGING
 174                 LDAP_LOG( OPERATION, INFO,
 175                         "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
 176 #else
 177                 Debug( LDAP_DEBUG_ANY,
 178                         "entry_check_schema(%s): %s\n",
 179                         e->e_dn, textbuf, 0 );
 180 #endif
 181
 182                 return LDAP_OBJECT_CLASS_VIOLATION;
 183         }
 184
 185         /* find the object class attribute */
 186         aoc = attr_find( e->e_attrs, ad_objectClass );
 187         if ( aoc == NULL ) {
 188 #ifdef NEW_LOGGING
 189                 LDAP_LOG( OPERATION, INFO,
 190                         "entry_schema_check: No objectClass for entry (%s).\n",
 191                         e->e_dn, 0, 0 );
 192 #else
 193                 Debug( LDAP_DEBUG_ANY, "No objectClass for entry (%s)\n",
 194                     e->e_dn, 0, 0 );
 195 #endif
 196
 197                 *text = "no objectClass attribute";
 198                 return LDAP_OBJECT_CLASS_VIOLATION;
 199         }
 200
 201         assert( aoc->a_vals != NULL );
 202         assert( aoc->a_vals[0].bv_val != NULL );
 203
 204         rc = structural_class( aoc->a_vals, &nsc, &oc, text, textbuf, textlen );
 205         if( rc != LDAP_SUCCESS ) {
 206                 return rc;
 207         }
 208
 209         *text = textbuf;
 210
 211         if ( oc == NULL ) {
 212                 snprintf( textbuf, textlen,
 213                         "unrecognized objectClass '%s'",
 214                         aoc->a_vals[0].bv_val );
 215                 return LDAP_OBJECT_CLASS_VIOLATION;
 216
 217         } else if ( sc != oc ) {
 218                 snprintf( textbuf, textlen,
 219                         "structural object class modification "
 220                         "from '%s' to '%s' not allowed",
 221                         asc->a_vals[0].bv_val, nsc.bv_val );
 222                 return LDAP_NO_OBJECT_CLASS_MODS;
 223         }
 224
 225         /* naming check */
 226 #ifdef LDAP_SYNCREPL
 227         if ( !is_entry_objectclass ( e, slap_schema.si_oc_glue, 0 ) ) {
 228                 rc = entry_naming_check( e, text, textbuf, textlen );
 229                 if( rc != LDAP_SUCCESS ) {
 230                         return rc;
 231                 }
 232         } else {
 233                 printf("glue !!!\n");
 234         }
 235 #else
 236         rc = entry_naming_check( e, text, textbuf, textlen );
 237         if( rc != LDAP_SUCCESS ) {
 238                 return rc;
 239         }
 240 #endif
 241
 242 #ifdef SLAP_EXTENDED_SCHEMA
 243         /* find the content rule for the structural class */
 244         cr = cr_find( sc->soc_oid );
 245
 246         /* the cr must be same as the structural class */
 247         assert( !cr || !strcmp( cr->scr_oid, sc->soc_oid ) );
 248
 249         /* check that the entry has required attrs of the content rule */
 250         if( cr ) {
 251                 if( cr->scr_obsolete ) {
 252                         snprintf( textbuf, textlen,
 253                                 "content rule '%s' is obsolete",
 254                                 ldap_contentrule2name( &cr->scr_crule ));
 255
 256 #ifdef NEW_LOGGING
 257                         LDAP_LOG( OPERATION, INFO,
 258                                 "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 259 #else
 260                         Debug( LDAP_DEBUG_ANY,
 261                                 "Entry (%s): %s\n",
 262                                 e->e_dn, textbuf, 0 );
 263 #endif
 264
 265                         return LDAP_OBJECT_CLASS_VIOLATION;
 266                 }
 267
 268                 if( cr->scr_required ) for( i=0; cr->scr_required[i]; i++ ) {
 269                         at = cr->scr_required[i];
 270
 271                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 272                                 if( a->a_desc->ad_type == at ) {
 273                                         break;
 274                                 }
 275                         }
 276
 277                         /* not there => schema violation */
 278                         if ( a == NULL ) {
 279                                 snprintf( textbuf, textlen,
 280                                         "content rule '%s' requires attribute '%s'",
 281                                         ldap_contentrule2name( &cr->scr_crule ),
 282                                         at->sat_cname.bv_val );
 283
 284 #ifdef NEW_LOGGING
 285                                 LDAP_LOG( OPERATION, INFO,
 286                                         "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 287 #else
 288                                 Debug( LDAP_DEBUG_ANY,
 289                                         "Entry (%s): %s\n",
 290                                         e->e_dn, textbuf, 0 );
 291 #endif
 292
 293                                 return LDAP_OBJECT_CLASS_VIOLATION;
 294                         }
 295                 }
 296
 297                 if( cr->scr_precluded ) for( i=0; cr->scr_precluded[i]; i++ ) {
 298                         at = cr->scr_precluded[i];
 299
 300                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 301                                 if( a->a_desc->ad_type == at ) {
 302                                         break;
 303                                 }
 304                         }
 305
 306                         /* there => schema violation */
 307                         if ( a != NULL ) {
 308                                 snprintf( textbuf, textlen,
 309                                         "content rule '%s' precluded attribute '%s'",
 310                                         ldap_contentrule2name( &cr->scr_crule ),
 311                                         at->sat_cname.bv_val );
 312
 313 #ifdef NEW_LOGGING
 314                                 LDAP_LOG( OPERATION, INFO,
 315                                         "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 316 #else
 317                                 Debug( LDAP_DEBUG_ANY,
 318                                         "Entry (%s): %s\n",
 319                                         e->e_dn, textbuf, 0 );
 320 #endif
 321
 322                                 return LDAP_OBJECT_CLASS_VIOLATION;
 323                         }
 324                 }
 325         }
 326 #endif /* SLAP_EXTENDED_SCHEMA */
 327
 328         /* check that the entry has required attrs for each oc */
 329         for ( i = 0; aoc->a_vals[i].bv_val != NULL; i++ ) {
 330                 if ( (oc = oc_bvfind( &aoc->a_vals[i] )) == NULL ) {
 331                         snprintf( textbuf, textlen,
 332                                 "unrecognized objectClass '%s'",
 333                                 aoc->a_vals[i].bv_val );
 334
 335 #ifdef NEW_LOGGING
 336                         LDAP_LOG( OPERATION, INFO,
 337                                 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
 338 #else
 339                         Debug( LDAP_DEBUG_ANY,
 340                                 "entry_check_schema(%s): %s\n",
 341                                 e->e_dn, textbuf, 0 );
 342 #endif
 343
 344                         return LDAP_OBJECT_CLASS_VIOLATION;
 345                 }
 346
 347                 if ( oc->soc_obsolete ) {
 348                         /* disallow obsolete classes */
 349                         snprintf( textbuf, textlen,
 350                                 "objectClass '%s' is OBSOLETE",
 351                                 aoc->a_vals[i].bv_val );
 352
 353 #ifdef NEW_LOGGING
 354                         LDAP_LOG( OPERATION, INFO,
 355                                 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
 356 #else
 357                         Debug( LDAP_DEBUG_ANY,
 358                                 "entry_check_schema(%s): %s\n",
 359                                 e->e_dn, textbuf, 0 );
 360 #endif
 361
 362                         return LDAP_OBJECT_CLASS_VIOLATION;
 363                 }
 364
 365                 if ( oc->soc_check ) {
 366                         int rc = (oc->soc_check)( be, e, oc,
 367                                 text, textbuf, textlen );
 368                         if( rc != LDAP_SUCCESS ) {
 369                                 return rc;
 370                         }
 371                 }
 372
 373                 if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT ) {
 374                         /* object class is abstract */
 375                         if ( oc != slap_schema.si_oc_top &&
 376                                 !is_object_subclass( oc, sc ))
 377                         {
 378                                 int j;
 379                                 ObjectClass *xc = NULL;
 380                                 for( j=0; aoc->a_vals[j].bv_val; j++ ) {
 381                                         if( i != j ) {
 382                                                 xc = oc_bvfind( &aoc->a_vals[i] );
 383                                                 if( xc == NULL ) {
 384                                                         snprintf( textbuf, textlen,
 385                                                                 "unrecognized objectClass '%s'",
 386                                                                 aoc->a_vals[i].bv_val );
 387
 388 #ifdef NEW_LOGGING
 389                                                         LDAP_LOG( OPERATION, INFO,
 390                                                                 "entry_schema_check: dn (%s), %s\n",
 391                                                                 e->e_dn, textbuf, 0 );
 392 #else
 393                                                         Debug( LDAP_DEBUG_ANY,
 394                                                                 "entry_check_schema(%s): %s\n",
 395                                                                 e->e_dn, textbuf, 0 );
 396 #endif
 397
 398                                                         return LDAP_OBJECT_CLASS_VIOLATION;
 399                                                 }
 400
 401                                                 /* since we previous check against the
 402                                                  * structural object of this entry, the
 403                                                  * abstract class must be a (direct or indirect)
 404                                                  * superclass of one of the auxiliary classes of
 405                                                  * the entry.
 406                                                  */
 407                                                 if ( xc->soc_kind == LDAP_SCHEMA_AUXILIARY &&
 408                                                         is_object_subclass( oc, xc ) )
 409                                                 {
 410                                                         xc = NULL;
 411                                                         break;
 412                                                 }
 413                                         }
 414                                 }
 415
 416                                 if( xc == NULL ) {
 417                                         snprintf( textbuf, textlen, "instanstantiation of "
 418                                                 "abstract objectClass '%s' not allowed",
 419                                                 aoc->a_vals[i].bv_val );
 420
 421 #ifdef NEW_LOGGING
 422                                         LDAP_LOG( OPERATION, INFO,
 423                                                 "entry_schema_check: dn (%s), %s\n",
 424                                                 e->e_dn, textbuf, 0 );
 425 #else
 426                                         Debug( LDAP_DEBUG_ANY,
 427                                                 "entry_check_schema(%s): %s\n",
 428                                                 e->e_dn, textbuf, 0 );
 429 #endif
 430
 431                                         return LDAP_OBJECT_CLASS_VIOLATION;
 432                                 }
 433                         }
 434
 435                 } else if ( oc->soc_kind != LDAP_SCHEMA_STRUCTURAL || oc == sc ) {
 436                         char *s;
 437
 438 #ifdef SLAP_EXTENDED_SCHEMA
 439                         if( oc->soc_kind == LDAP_SCHEMA_AUXILIARY ) {
 440                                 int k=0;
 441                                 if( cr ) {
 442                                         if( cr->scr_auxiliaries ) {
 443                                                 for( ; cr->scr_auxiliaries[k]; k++ ) {
 444                                                         if( cr->scr_auxiliaries[k] == oc ) {
 445                                                                 k=-1;
 446                                                                 break;
 447                                                         }
 448                                                 }
 449                                         }
 450                                 } else if ( global_disallows & SLAP_DISALLOW_AUX_WO_CR ) {
 451                                         k=-1;
 452                                 }
 453
 454                                 if( k == -1 ) {
 455                                         snprintf( textbuf, textlen,
 456                                                 "content rule '%s' does not allow class '%s'",
 457                                                 ldap_contentrule2name( &cr->scr_crule ),
 458                                                 oc->soc_cname.bv_val );
 459
 460 #ifdef NEW_LOGGING
 461                                         LDAP_LOG( OPERATION, INFO,
 462                                                 "entry_schema_check: dn=\"%s\" %s",
 463                                                 e->e_dn, textbuf, 0 );
 464 #else
 465                                         Debug( LDAP_DEBUG_ANY,
 466                                                 "Entry (%s): %s\n",
 467                                                 e->e_dn, textbuf, 0 );
 468 #endif
 469
 470                                         return LDAP_OBJECT_CLASS_VIOLATION;
 471                                 }
 472                         }
 473 #endif /* SLAP_EXTENDED_SCHEMA */
 474
 475                         s = oc_check_required( e, oc, &aoc->a_vals[i] );
 476                         if (s != NULL) {
 477                                 snprintf( textbuf, textlen,
 478                                         "object class '%s' requires attribute '%s'",
 479                                         aoc->a_vals[i].bv_val, s );
 480
 481 #ifdef NEW_LOGGING
 482                                 LDAP_LOG( OPERATION, INFO,
 483                                         "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 484 #else
 485                                 Debug( LDAP_DEBUG_ANY,
 486                                         "Entry (%s): %s\n",
 487                                         e->e_dn, textbuf, 0 );
 488 #endif
 489
 490                                 return LDAP_OBJECT_CLASS_VIOLATION;
 491                         }
 492
 493                         if( oc == slap_schema.si_oc_extensibleObject ) {
 494                                 extensible=1;
 495                         }
 496                 }
 497         }
 498
 499         if( extensible ) {
 500                 return LDAP_SUCCESS;
 501         }
 502
 503         /* check that each attr in the entry is allowed by some oc */
 504         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 505                 int ret;
 506
 507 #ifdef SLAP_EXTENDED_SCHEMA
 508                 ret = LDAP_OBJECT_CLASS_VIOLATION;
 509
 510                 if( cr && cr->scr_required ) {
 511                         for( i=0; cr->scr_required[i]; i++ ) {
 512                                 if( cr->scr_required[i] == a->a_desc->ad_type ) {
 513                                         ret = LDAP_SUCCESS;
 514                                         break;
 515                                 }
 516                         }
 517                 }
 518
 519                 if( ret != LDAP_SUCCESS && cr && cr->scr_allowed ) {
 520                         for( i=0; cr->scr_allowed[i]; i++ ) {
 521                                 if( cr->scr_allowed[i] == a->a_desc->ad_type ) {
 522                                         ret = LDAP_SUCCESS;
 523                                         break;
 524                                 }
 525                         }
 526                 }
 527
 528                 if( ret != LDAP_SUCCESS )
 529 #endif /* SLAP_EXTENDED_SCHEMA */
 530                 {
 531                         ret = oc_check_allowed( a->a_desc->ad_type, aoc->a_vals, sc );
 532                 }
 533
 534                 if ( ret != LDAP_SUCCESS ) {
 535                         char *type = a->a_desc->ad_cname.bv_val;
 536
 537                         snprintf( textbuf, textlen,
 538                                 "attribute '%s' not allowed",
 539                                 type );
 540
 541 #ifdef NEW_LOGGING
 542                         LDAP_LOG( OPERATION, INFO,
 543                                 "entry_schema_check: dn=\"%s\" %s\n", e->e_dn, textbuf, 0);
 544 #else
 545                         Debug( LDAP_DEBUG_ANY,
 546                             "Entry (%s), %s\n",
 547                             e->e_dn, textbuf, 0 );
 548 #endif
 549
 550                         return ret;
 551                 }
 552         }
 553
 554         return LDAP_SUCCESS;
 555 }
 556
 557 static char *
 558 oc_check_required(
 559         Entry *e,
 560         ObjectClass *oc,
 561         struct berval *ocname )
 562 {
 563         AttributeType   *at;
 564         int             i;
 565         Attribute       *a;
 566
 567 #ifdef NEW_LOGGING
 568         LDAP_LOG( OPERATION, ENTRY,
 569                 "oc_check_required: dn (%s), objectClass \"%s\"\n",
 570                 e->e_dn, ocname->bv_val, 0 );
 571 #else
 572         Debug( LDAP_DEBUG_TRACE,
 573                 "oc_check_required entry (%s), objectClass \"%s\"\n",
 574                 e->e_dn, ocname->bv_val, 0 );
 575 #endif
 576
 577
 578         /* check for empty oc_required */
 579         if(oc->soc_required == NULL) {
 580                 return NULL;
 581         }
 582
 583         /* for each required attribute */
 584         for ( i = 0; oc->soc_required[i] != NULL; i++ ) {
 585                 at = oc->soc_required[i];
 586                 /* see if it's in the entry */
 587                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 588                         if( a->a_desc->ad_type == at ) {
 589                                 break;
 590                         }
 591                 }
 592                 /* not there => schema violation */
 593                 if ( a == NULL ) {
 594                         return at->sat_cname.bv_val;
 595                 }
 596         }
 597
 598         return( NULL );
 599 }
 600
 601 int oc_check_allowed(
 602         AttributeType *at,
 603         BerVarray ocl,
 604         ObjectClass *sc )
 605 {
 606         int             i, j;
 607
 608 #ifdef NEW_LOGGING
 609         LDAP_LOG( OPERATION, ENTRY,
 610                 "oc_check_allowed: type \"%s\"\n", at->sat_cname.bv_val, 0, 0 );
 611 #else
 612         Debug( LDAP_DEBUG_TRACE,
 613                 "oc_check_allowed type \"%s\"\n",
 614                 at->sat_cname.bv_val, 0, 0 );
 615 #endif
 616
 617         /* always allow objectClass attribute */
 618         if ( strcasecmp( at->sat_cname.bv_val, "objectClass" ) == 0 ) {
 619                 return LDAP_SUCCESS;
 620         }
 621
 622         /*
 623          * All operational attributions are allowed by schema rules.
 624          */
 625         if( is_at_operational(at) ) {
 626                 return LDAP_SUCCESS;
 627         }
 628
 629         /* check to see if its allowed by the structuralObjectClass */
 630         if( sc ) {
 631                 /* does it require the type? */
 632                 for ( j = 0; sc->soc_required != NULL &&
 633                         sc->soc_required[j] != NULL; j++ )
 634                 {
 635                         if( at == sc->soc_required[j] ) {
 636                                 return LDAP_SUCCESS;
 637                         }
 638                 }
 639
 640                 /* does it allow the type? */
 641                 for ( j = 0; sc->soc_allowed != NULL &&
 642                         sc->soc_allowed[j] != NULL; j++ )
 643                 {
 644                         if( at == sc->soc_allowed[j] ) {
 645                                 return LDAP_SUCCESS;
 646                         }
 647                 }
 648         }
 649
 650         /* check that the type appears as req or opt in at least one oc */
 651         for ( i = 0; ocl[i].bv_val != NULL; i++ ) {
 652                 /* if we know about the oc */
 653                 ObjectClass     *oc = oc_bvfind( &ocl[i] );
 654                 if ( oc != NULL && oc->soc_kind != LDAP_SCHEMA_ABSTRACT &&
 655                         ( sc == NULL || oc->soc_kind == LDAP_SCHEMA_AUXILIARY ))
 656                 {
 657                         /* does it require the type? */
 658                         for ( j = 0; oc->soc_required != NULL &&
 659                                 oc->soc_required[j] != NULL; j++ )
 660                         {
 661                                 if( at == oc->soc_required[j] ) {
 662                                         return LDAP_SUCCESS;
 663                                 }
 664                         }
 665                         /* does it allow the type? */
 666                         for ( j = 0; oc->soc_allowed != NULL &&
 667                                 oc->soc_allowed[j] != NULL; j++ )
 668                         {
 669                                 if( at == oc->soc_allowed[j] ) {
 670                                         return LDAP_SUCCESS;
 671                                 }
 672                         }
 673                 }
 674         }
 675
 676         /* not allowed by any oc */
 677         return LDAP_OBJECT_CLASS_VIOLATION;
 678 }
 679
 680 /*
 681  * Determine the structural object class from a set of OIDs
 682  */
 683 int structural_class(
 684         BerVarray ocs,
 685         struct berval *scbv,
 686         ObjectClass **scp,
 687         const char **text,
 688         char *textbuf, size_t textlen )
 689 {
 690         int i;
 691         ObjectClass *oc;
 692         ObjectClass *sc = NULL;
 693         int scn = -1;
 694
 695         *text = "structural_class: internal error";
 696         scbv->bv_len = 0;
 697
 698         for( i=0; ocs[i].bv_val; i++ ) {
 699                 oc = oc_bvfind( &ocs[i] );
 700
 701                 if( oc == NULL ) {
 702                         snprintf( textbuf, textlen,
 703                                 "unrecognized objectClass '%s'",
 704                                 ocs[i].bv_val );
 705                         *text = textbuf;
 706                         return LDAP_OBJECT_CLASS_VIOLATION;
 707                 }
 708
 709                 if( oc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 710                         if( sc == NULL || is_object_subclass( sc, oc ) ) {
 711                                 sc = oc;
 712                                 scn = i;
 713
 714                         } else if ( !is_object_subclass( oc, sc ) ) {
 715                                 int j;
 716                                 ObjectClass *xc = NULL;
 717
 718                                 /* find common superior */
 719                                 for( j=i+1; ocs[j].bv_val; j++ ) {
 720                                         xc = oc_bvfind( &ocs[j] );
 721
 722                                         if( xc == NULL ) {
 723                                                 snprintf( textbuf, textlen,
 724                                                         "unrecognized objectClass '%s'",
 725                                                         ocs[i].bv_val );
 726                                                 *text = textbuf;
 727                                                 return LDAP_OBJECT_CLASS_VIOLATION;
 728                                         }
 729
 730                                         if( xc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 731                                                 xc = NULL;
 732                                                 continue;
 733                                         }
 734
 735                                         if( is_object_subclass( sc, xc ) &&
 736                                                 is_object_subclass( oc, xc ) )
 737                                         {
 738                                                 /* found common subclass */
 739                                                 break;
 740                                         }
 741
 742                                         xc = NULL;
 743                                 }
 744
 745                                 if( xc == NULL ) {
 746                                         /* no common subclass */
 747                                         snprintf( textbuf, textlen,
 748                                                 "invalid structural object class chain (%s/%s)",
 749                                                 ocs[scn].bv_val, ocs[i].bv_val );
 750                                         *text = textbuf;
 751                                         return LDAP_OBJECT_CLASS_VIOLATION;
 752                                 }
 753                         }
 754                 }
 755         }
 756
 757         if( scp ) {
 758                 *scp = sc;
 759         }
 760
 761         if( sc == NULL ) {
 762                 *text = "no structural object class provided";
 763                 return LDAP_OBJECT_CLASS_VIOLATION;
 764         }
 765
 766         if( scn < 0 ) {
 767                 *text = "invalid structural object class";
 768                 return LDAP_OBJECT_CLASS_VIOLATION;
 769         }
 770
 771         *scbv = ocs[scn];
 772
 773         if( scbv->bv_len == 0 ) {
 774                 *text = "invalid structural object class";
 775                 return LDAP_OBJECT_CLASS_VIOLATION;
 776         }
 777
 778         return LDAP_SUCCESS;
 779 }
 780
 781 /*
 782  * Return structural object class from list of modifications
 783  */
 784 int mods_structural_class(
 785         Modifications *mods,
 786         struct berval *sc,
 787         const char **text,
 788         char *textbuf, size_t textlen )
 789 {
 790         Modifications *ocmod = NULL;
 791
 792         for( ; mods != NULL; mods = mods->sml_next ) {
 793                 if( mods->sml_desc == slap_schema.si_ad_objectClass ) {
 794                         if( ocmod != NULL ) {
 795                                 *text = "entry has multiple objectClass attributes";
 796                                 return LDAP_OBJECT_CLASS_VIOLATION;
 797                         }
 798                         ocmod = mods;
 799                 }
 800         }
 801
 802         if( ocmod == NULL ) {
 803                 *text = "entry has no objectClass attribute";
 804                 return LDAP_OBJECT_CLASS_VIOLATION;
 805         }
 806
 807         if( ocmod->sml_bvalues == NULL || ocmod->sml_bvalues[0].bv_val == NULL ) {
 808                 *text = "objectClass attribute has no values";
 809                 return LDAP_OBJECT_CLASS_VIOLATION;
 810         }
 811
 812         return structural_class( ocmod->sml_bvalues, sc, NULL,
 813                 text, textbuf, textlen );
 814 }
 815
 816
 817 static int
 818 entry_naming_check(
 819         Entry *e,
 820         const char** text,
 821         char *textbuf, size_t textlen )
 822 {
 823         /* naming check */
 824         LDAPRDN         rdn = NULL;
 825         const char      *p = NULL;
 826         ber_len_t       cnt;
 827         int             rc = LDAP_SUCCESS;
 828
 829         /*
 830          * Get attribute type(s) and attribute value(s) of our RDN
 831          */
 832         if ( ldap_bv2rdn( &e->e_name, &rdn, (char **)&p,
 833                 LDAP_DN_FORMAT_LDAP ) )
 834         {
 835                 *text = "unrecongized attribute type(s) in RDN";
 836                 return LDAP_INVALID_DN_SYNTAX;
 837         }
 838
 839         /* Check that each AVA of the RDN is present in the entry */
 840         /* FIXME: Should also check that each AVA lists a distinct type */
 841         for ( cnt = 0; rdn[cnt]; cnt++ ) {
 842                 LDAPAVA *ava = rdn[cnt];
 843                 AttributeDescription *desc = NULL;
 844                 Attribute *attr;
 845                 const char *errtext;
 846
 847                 rc = slap_bv2ad( &ava->la_attr, &desc, &errtext );
 848                 if ( rc != LDAP_SUCCESS ) {
 849                         snprintf( textbuf, textlen, "%s (in RDN)", errtext );
 850                         break;
 851                 }
 852
 853                 /* find the naming attribute */
 854                 attr = attr_find( e->e_attrs, desc );
 855                 if ( attr == NULL ) {
 856                         snprintf( textbuf, textlen,
 857                                 "naming attribute '%s' is not present in entry",
 858                                 ava->la_attr.bv_val );
 859                         rc = LDAP_NAMING_VIOLATION;
 860                         break;
 861                 }
 862
 863                 if( ava->la_flags & LDAP_AVA_BINARY ) {
 864                         snprintf( textbuf, textlen,
 865                                 "value of naming attribute '%s' in unsupported BER form",
 866                                 ava->la_attr.bv_val );
 867                         rc = LDAP_NAMING_VIOLATION;
 868                 }
 869
 870                 if ( value_find_ex( desc,
 871                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 872                         attr->a_nvals,
 873                         &ava->la_value, NULL ) != 0 )
 874                 {
 875                         snprintf( textbuf, textlen,
 876                                 "value of naming attribute '%s' is not present in entry",
 877                                 ava->la_attr.bv_val );
 878                         rc = LDAP_NAMING_VIOLATION;
 879                         break;
 880                 }
 881         }
 882
 883         ldap_rdnfree( rdn );
 884         return rc;
 885 }
 886