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 #ifdef LDAP_SYNCREPL
 218         } else if ( sc != slap_schema.si_oc_glue && sc != oc ) {
 219 #else
 220         } else if ( sc != oc ) {
 221 #endif
 222                 snprintf( textbuf, textlen,
 223                         "structural object class modification "
 224                         "from '%s' to '%s' not allowed",
 225                         asc->a_vals[0].bv_val, nsc.bv_val );
 226                 return LDAP_NO_OBJECT_CLASS_MODS;
 227         }
 228 #ifdef LDAP_SYNCREPL
 229         else if ( sc == slap_schema.si_oc_glue ) {
 230                 sc = oc;
 231         }
 232 #endif
 233
 234         /* naming check */
 235 #ifdef LDAP_SYNCREPL
 236         if ( !is_entry_objectclass ( e, slap_schema.si_oc_glue, 0 ) ) {
 237                 rc = entry_naming_check( e, text, textbuf, textlen );
 238                 if( rc != LDAP_SUCCESS ) {
 239                         return rc;
 240                 }
 241         } else {
 242                         /* Glue Entry */
 243         }
 244 #else
 245         rc = entry_naming_check( e, text, textbuf, textlen );
 246         if( rc != LDAP_SUCCESS ) {
 247                 return rc;
 248         }
 249 #endif
 250
 251 #ifdef SLAP_EXTENDED_SCHEMA
 252         /* find the content rule for the structural class */
 253         cr = cr_find( sc->soc_oid );
 254
 255         /* the cr must be same as the structural class */
 256         assert( !cr || !strcmp( cr->scr_oid, sc->soc_oid ) );
 257
 258         /* check that the entry has required attrs of the content rule */
 259         if( cr ) {
 260                 if( cr->scr_obsolete ) {
 261                         snprintf( textbuf, textlen,
 262                                 "content rule '%s' is obsolete",
 263                                 ldap_contentrule2name( &cr->scr_crule ));
 264
 265 #ifdef NEW_LOGGING
 266                         LDAP_LOG( OPERATION, INFO,
 267                                 "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 268 #else
 269                         Debug( LDAP_DEBUG_ANY,
 270                                 "Entry (%s): %s\n",
 271                                 e->e_dn, textbuf, 0 );
 272 #endif
 273
 274                         return LDAP_OBJECT_CLASS_VIOLATION;
 275                 }
 276
 277                 if( cr->scr_required ) for( i=0; cr->scr_required[i]; i++ ) {
 278                         at = cr->scr_required[i];
 279
 280                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 281                                 if( a->a_desc->ad_type == at ) {
 282                                         break;
 283                                 }
 284                         }
 285
 286                         /* not there => schema violation */
 287                         if ( a == NULL ) {
 288                                 snprintf( textbuf, textlen,
 289                                         "content rule '%s' requires attribute '%s'",
 290                                         ldap_contentrule2name( &cr->scr_crule ),
 291                                         at->sat_cname.bv_val );
 292
 293 #ifdef NEW_LOGGING
 294                                 LDAP_LOG( OPERATION, INFO,
 295                                         "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 296 #else
 297                                 Debug( LDAP_DEBUG_ANY,
 298                                         "Entry (%s): %s\n",
 299                                         e->e_dn, textbuf, 0 );
 300 #endif
 301
 302                                 return LDAP_OBJECT_CLASS_VIOLATION;
 303                         }
 304                 }
 305
 306                 if( cr->scr_precluded ) for( i=0; cr->scr_precluded[i]; i++ ) {
 307                         at = cr->scr_precluded[i];
 308
 309                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 310                                 if( a->a_desc->ad_type == at ) {
 311                                         break;
 312                                 }
 313                         }
 314
 315                         /* there => schema violation */
 316                         if ( a != NULL ) {
 317                                 snprintf( textbuf, textlen,
 318                                         "content rule '%s' precluded attribute '%s'",
 319                                         ldap_contentrule2name( &cr->scr_crule ),
 320                                         at->sat_cname.bv_val );
 321
 322 #ifdef NEW_LOGGING
 323                                 LDAP_LOG( OPERATION, INFO,
 324                                         "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 325 #else
 326                                 Debug( LDAP_DEBUG_ANY,
 327                                         "Entry (%s): %s\n",
 328                                         e->e_dn, textbuf, 0 );
 329 #endif
 330
 331                                 return LDAP_OBJECT_CLASS_VIOLATION;
 332                         }
 333                 }
 334         }
 335 #endif /* SLAP_EXTENDED_SCHEMA */
 336
 337         /* check that the entry has required attrs for each oc */
 338         for ( i = 0; aoc->a_vals[i].bv_val != NULL; i++ ) {
 339                 if ( (oc = oc_bvfind( &aoc->a_vals[i] )) == NULL ) {
 340                         snprintf( textbuf, textlen,
 341                                 "unrecognized objectClass '%s'",
 342                                 aoc->a_vals[i].bv_val );
 343
 344 #ifdef NEW_LOGGING
 345                         LDAP_LOG( OPERATION, INFO,
 346                                 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
 347 #else
 348                         Debug( LDAP_DEBUG_ANY,
 349                                 "entry_check_schema(%s): %s\n",
 350                                 e->e_dn, textbuf, 0 );
 351 #endif
 352
 353                         return LDAP_OBJECT_CLASS_VIOLATION;
 354                 }
 355
 356                 if ( oc->soc_obsolete ) {
 357                         /* disallow obsolete classes */
 358                         snprintf( textbuf, textlen,
 359                                 "objectClass '%s' is OBSOLETE",
 360                                 aoc->a_vals[i].bv_val );
 361
 362 #ifdef NEW_LOGGING
 363                         LDAP_LOG( OPERATION, INFO,
 364                                 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
 365 #else
 366                         Debug( LDAP_DEBUG_ANY,
 367                                 "entry_check_schema(%s): %s\n",
 368                                 e->e_dn, textbuf, 0 );
 369 #endif
 370
 371                         return LDAP_OBJECT_CLASS_VIOLATION;
 372                 }
 373
 374                 if ( oc->soc_check ) {
 375                         int rc = (oc->soc_check)( be, e, oc,
 376                                 text, textbuf, textlen );
 377                         if( rc != LDAP_SUCCESS ) {
 378                                 return rc;
 379                         }
 380                 }
 381
 382                 if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT ) {
 383                         /* object class is abstract */
 384                         if ( oc != slap_schema.si_oc_top &&
 385                                 !is_object_subclass( oc, sc ))
 386                         {
 387                                 int j;
 388                                 ObjectClass *xc = NULL;
 389                                 for( j=0; aoc->a_vals[j].bv_val; j++ ) {
 390                                         if( i != j ) {
 391                                                 xc = oc_bvfind( &aoc->a_vals[i] );
 392                                                 if( xc == NULL ) {
 393                                                         snprintf( textbuf, textlen,
 394                                                                 "unrecognized objectClass '%s'",
 395                                                                 aoc->a_vals[i].bv_val );
 396
 397 #ifdef NEW_LOGGING
 398                                                         LDAP_LOG( OPERATION, INFO,
 399                                                                 "entry_schema_check: dn (%s), %s\n",
 400                                                                 e->e_dn, textbuf, 0 );
 401 #else
 402                                                         Debug( LDAP_DEBUG_ANY,
 403                                                                 "entry_check_schema(%s): %s\n",
 404                                                                 e->e_dn, textbuf, 0 );
 405 #endif
 406
 407                                                         return LDAP_OBJECT_CLASS_VIOLATION;
 408                                                 }
 409
 410                                                 /* since we previous check against the
 411                                                  * structural object of this entry, the
 412                                                  * abstract class must be a (direct or indirect)
 413                                                  * superclass of one of the auxiliary classes of
 414                                                  * the entry.
 415                                                  */
 416                                                 if ( xc->soc_kind == LDAP_SCHEMA_AUXILIARY &&
 417                                                         is_object_subclass( oc, xc ) )
 418                                                 {
 419                                                         xc = NULL;
 420                                                         break;
 421                                                 }
 422                                         }
 423                                 }
 424
 425                                 if( xc == NULL ) {
 426                                         snprintf( textbuf, textlen, "instanstantiation of "
 427                                                 "abstract objectClass '%s' not allowed",
 428                                                 aoc->a_vals[i].bv_val );
 429
 430 #ifdef NEW_LOGGING
 431                                         LDAP_LOG( OPERATION, INFO,
 432                                                 "entry_schema_check: dn (%s), %s\n",
 433                                                 e->e_dn, textbuf, 0 );
 434 #else
 435                                         Debug( LDAP_DEBUG_ANY,
 436                                                 "entry_check_schema(%s): %s\n",
 437                                                 e->e_dn, textbuf, 0 );
 438 #endif
 439
 440                                         return LDAP_OBJECT_CLASS_VIOLATION;
 441                                 }
 442                         }
 443
 444                 } else if ( oc->soc_kind != LDAP_SCHEMA_STRUCTURAL || oc == sc ) {
 445                         char *s;
 446
 447 #ifdef SLAP_EXTENDED_SCHEMA
 448                         if( oc->soc_kind == LDAP_SCHEMA_AUXILIARY ) {
 449                                 int k;
 450
 451                                 if( cr ) {
 452                                         int j;
 453
 454                                         k = -1;
 455                                         if( cr->scr_auxiliaries ) {
 456                                                 for( j = 0; cr->scr_auxiliaries[j]; j++ ) {
 457                                                         if( cr->scr_auxiliaries[j] == oc ) {
 458                                                                 k = 0;
 459                                                                 break;
 460                                                         }
 461                                                 }
 462                                         }
 463                                 } else if ( global_disallows & SLAP_DISALLOW_AUX_WO_CR ) {
 464                                         k = -1;
 465                                 } else {
 466                                         k = 0;
 467                                 }
 468
 469                                 if( k == -1 ) {
 470                                         snprintf( textbuf, textlen,
 471                                                 "content rule '%s' does not allow class '%s'",
 472                                                 ldap_contentrule2name( &cr->scr_crule ),
 473                                                 oc->soc_cname.bv_val );
 474
 475 #ifdef NEW_LOGGING
 476                                         LDAP_LOG( OPERATION, INFO,
 477                                                 "entry_schema_check: dn=\"%s\" %s",
 478                                                 e->e_dn, textbuf, 0 );
 479 #else
 480                                         Debug( LDAP_DEBUG_ANY,
 481                                                 "Entry (%s): %s\n",
 482                                                 e->e_dn, textbuf, 0 );
 483 #endif
 484
 485                                         return LDAP_OBJECT_CLASS_VIOLATION;
 486                                 }
 487                         }
 488 #endif /* SLAP_EXTENDED_SCHEMA */
 489
 490                         s = oc_check_required( e, oc, &aoc->a_vals[i] );
 491                         if (s != NULL) {
 492                                 snprintf( textbuf, textlen,
 493                                         "object class '%s' requires attribute '%s'",
 494                                         aoc->a_vals[i].bv_val, s );
 495
 496 #ifdef NEW_LOGGING
 497                                 LDAP_LOG( OPERATION, INFO,
 498                                         "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
 499 #else
 500                                 Debug( LDAP_DEBUG_ANY,
 501                                         "Entry (%s): %s\n",
 502                                         e->e_dn, textbuf, 0 );
 503 #endif
 504
 505                                 return LDAP_OBJECT_CLASS_VIOLATION;
 506                         }
 507
 508                         if( oc == slap_schema.si_oc_extensibleObject ) {
 509                                 extensible=1;
 510                         }
 511                 }
 512         }
 513
 514         if( extensible ) {
 515                 return LDAP_SUCCESS;
 516         }
 517
 518         /* check that each attr in the entry is allowed by some oc */
 519         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 520                 int ret;
 521
 522 #ifdef SLAP_EXTENDED_SCHEMA
 523                 ret = LDAP_OBJECT_CLASS_VIOLATION;
 524
 525                 if( cr && cr->scr_required ) {
 526                         for( i=0; cr->scr_required[i]; i++ ) {
 527                                 if( cr->scr_required[i] == a->a_desc->ad_type ) {
 528                                         ret = LDAP_SUCCESS;
 529                                         break;
 530                                 }
 531                         }
 532                 }
 533
 534                 if( ret != LDAP_SUCCESS && cr && cr->scr_allowed ) {
 535                         for( i=0; cr->scr_allowed[i]; i++ ) {
 536                                 if( cr->scr_allowed[i] == a->a_desc->ad_type ) {
 537                                         ret = LDAP_SUCCESS;
 538                                         break;
 539                                 }
 540                         }
 541                 }
 542
 543                 if( ret != LDAP_SUCCESS )
 544 #endif /* SLAP_EXTENDED_SCHEMA */
 545                 {
 546                         ret = oc_check_allowed( a->a_desc->ad_type, aoc->a_vals, sc );
 547                 }
 548
 549                 if ( ret != LDAP_SUCCESS ) {
 550                         char *type = a->a_desc->ad_cname.bv_val;
 551
 552                         snprintf( textbuf, textlen,
 553                                 "attribute '%s' not allowed",
 554                                 type );
 555
 556 #ifdef NEW_LOGGING
 557                         LDAP_LOG( OPERATION, INFO,
 558                                 "entry_schema_check: dn=\"%s\" %s\n", e->e_dn, textbuf, 0);
 559 #else
 560                         Debug( LDAP_DEBUG_ANY,
 561                             "Entry (%s), %s\n",
 562                             e->e_dn, textbuf, 0 );
 563 #endif
 564
 565                         return ret;
 566                 }
 567         }
 568
 569         return LDAP_SUCCESS;
 570 }
 571
 572 static char *
 573 oc_check_required(
 574         Entry *e,
 575         ObjectClass *oc,
 576         struct berval *ocname )
 577 {
 578         AttributeType   *at;
 579         int             i;
 580         Attribute       *a;
 581
 582 #ifdef NEW_LOGGING
 583         LDAP_LOG( OPERATION, ENTRY,
 584                 "oc_check_required: dn (%s), objectClass \"%s\"\n",
 585                 e->e_dn, ocname->bv_val, 0 );
 586 #else
 587         Debug( LDAP_DEBUG_TRACE,
 588                 "oc_check_required entry (%s), objectClass \"%s\"\n",
 589                 e->e_dn, ocname->bv_val, 0 );
 590 #endif
 591
 592
 593         /* check for empty oc_required */
 594         if(oc->soc_required == NULL) {
 595                 return NULL;
 596         }
 597
 598         /* for each required attribute */
 599         for ( i = 0; oc->soc_required[i] != NULL; i++ ) {
 600                 at = oc->soc_required[i];
 601                 /* see if it's in the entry */
 602                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 603                         if( a->a_desc->ad_type == at ) {
 604                                 break;
 605                         }
 606                 }
 607                 /* not there => schema violation */
 608                 if ( a == NULL ) {
 609                         return at->sat_cname.bv_val;
 610                 }
 611         }
 612
 613         return( NULL );
 614 }
 615
 616 int oc_check_allowed(
 617         AttributeType *at,
 618         BerVarray ocl,
 619         ObjectClass *sc )
 620 {
 621         int             i, j;
 622
 623 #ifdef NEW_LOGGING
 624         LDAP_LOG( OPERATION, ENTRY,
 625                 "oc_check_allowed: type \"%s\"\n", at->sat_cname.bv_val, 0, 0 );
 626 #else
 627         Debug( LDAP_DEBUG_TRACE,
 628                 "oc_check_allowed type \"%s\"\n",
 629                 at->sat_cname.bv_val, 0, 0 );
 630 #endif
 631
 632         /* always allow objectClass attribute */
 633         if ( strcasecmp( at->sat_cname.bv_val, "objectClass" ) == 0 ) {
 634                 return LDAP_SUCCESS;
 635         }
 636
 637         /*
 638          * All operational attributions are allowed by schema rules.
 639          */
 640         if( is_at_operational(at) ) {
 641                 return LDAP_SUCCESS;
 642         }
 643
 644         /* check to see if its allowed by the structuralObjectClass */
 645         if( sc ) {
 646                 /* does it require the type? */
 647                 for ( j = 0; sc->soc_required != NULL &&
 648                         sc->soc_required[j] != NULL; j++ )
 649                 {
 650                         if( at == sc->soc_required[j] ) {
 651                                 return LDAP_SUCCESS;
 652                         }
 653                 }
 654
 655                 /* does it allow the type? */
 656                 for ( j = 0; sc->soc_allowed != NULL &&
 657                         sc->soc_allowed[j] != NULL; j++ )
 658                 {
 659                         if( at == sc->soc_allowed[j] ) {
 660                                 return LDAP_SUCCESS;
 661                         }
 662                 }
 663         }
 664
 665         /* check that the type appears as req or opt in at least one oc */
 666         for ( i = 0; ocl[i].bv_val != NULL; i++ ) {
 667                 /* if we know about the oc */
 668                 ObjectClass     *oc = oc_bvfind( &ocl[i] );
 669                 if ( oc != NULL && oc->soc_kind != LDAP_SCHEMA_ABSTRACT &&
 670                         ( sc == NULL || oc->soc_kind == LDAP_SCHEMA_AUXILIARY ))
 671                 {
 672                         /* does it require the type? */
 673                         for ( j = 0; oc->soc_required != NULL &&
 674                                 oc->soc_required[j] != NULL; j++ )
 675                         {
 676                                 if( at == oc->soc_required[j] ) {
 677                                         return LDAP_SUCCESS;
 678                                 }
 679                         }
 680                         /* does it allow the type? */
 681                         for ( j = 0; oc->soc_allowed != NULL &&
 682                                 oc->soc_allowed[j] != NULL; j++ )
 683                         {
 684                                 if( at == oc->soc_allowed[j] ) {
 685                                         return LDAP_SUCCESS;
 686                                 }
 687                         }
 688                 }
 689         }
 690
 691         /* not allowed by any oc */
 692         return LDAP_OBJECT_CLASS_VIOLATION;
 693 }
 694
 695 /*
 696  * Determine the structural object class from a set of OIDs
 697  */
 698 int structural_class(
 699         BerVarray ocs,
 700         struct berval *scbv,
 701         ObjectClass **scp,
 702         const char **text,
 703         char *textbuf, size_t textlen )
 704 {
 705         int i;
 706         ObjectClass *oc;
 707         ObjectClass *sc = NULL;
 708         int scn = -1;
 709
 710         *text = "structural_class: internal error";
 711         scbv->bv_len = 0;
 712
 713         for( i=0; ocs[i].bv_val; i++ ) {
 714                 oc = oc_bvfind( &ocs[i] );
 715
 716                 if( oc == NULL ) {
 717                         snprintf( textbuf, textlen,
 718                                 "unrecognized objectClass '%s'",
 719                                 ocs[i].bv_val );
 720                         *text = textbuf;
 721                         return LDAP_OBJECT_CLASS_VIOLATION;
 722                 }
 723
 724                 if( oc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 725                         if( sc == NULL || is_object_subclass( sc, oc ) ) {
 726                                 sc = oc;
 727                                 scn = i;
 728
 729                         } else if ( !is_object_subclass( oc, sc ) ) {
 730                                 int j;
 731                                 ObjectClass *xc = NULL;
 732
 733                                 /* find common superior */
 734                                 for( j=i+1; ocs[j].bv_val; j++ ) {
 735                                         xc = oc_bvfind( &ocs[j] );
 736
 737                                         if( xc == NULL ) {
 738                                                 snprintf( textbuf, textlen,
 739                                                         "unrecognized objectClass '%s'",
 740                                                         ocs[i].bv_val );
 741                                                 *text = textbuf;
 742                                                 return LDAP_OBJECT_CLASS_VIOLATION;
 743                                         }
 744
 745                                         if( xc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 746                                                 xc = NULL;
 747                                                 continue;
 748                                         }
 749
 750                                         if( is_object_subclass( sc, xc ) &&
 751                                                 is_object_subclass( oc, xc ) )
 752                                         {
 753                                                 /* found common subclass */
 754                                                 break;
 755                                         }
 756
 757                                         xc = NULL;
 758                                 }
 759
 760                                 if( xc == NULL ) {
 761                                         /* no common subclass */
 762                                         snprintf( textbuf, textlen,
 763                                                 "invalid structural object class chain (%s/%s)",
 764                                                 ocs[scn].bv_val, ocs[i].bv_val );
 765                                         *text = textbuf;
 766                                         return LDAP_OBJECT_CLASS_VIOLATION;
 767                                 }
 768                         }
 769                 }
 770         }
 771
 772         if( scp ) {
 773                 *scp = sc;
 774         }
 775
 776         if( sc == NULL ) {
 777                 *text = "no structural object class provided";
 778                 return LDAP_OBJECT_CLASS_VIOLATION;
 779         }
 780
 781         if( scn < 0 ) {
 782                 *text = "invalid structural object class";
 783                 return LDAP_OBJECT_CLASS_VIOLATION;
 784         }
 785
 786         *scbv = ocs[scn];
 787
 788         if( scbv->bv_len == 0 ) {
 789                 *text = "invalid structural object class";
 790                 return LDAP_OBJECT_CLASS_VIOLATION;
 791         }
 792
 793         return LDAP_SUCCESS;
 794 }
 795
 796 /*
 797  * Return structural object class from list of modifications
 798  */
 799 int mods_structural_class(
 800         Modifications *mods,
 801         struct berval *sc,
 802         const char **text,
 803         char *textbuf, size_t textlen )
 804 {
 805         Modifications *ocmod = NULL;
 806
 807         for( ; mods != NULL; mods = mods->sml_next ) {
 808                 if( mods->sml_desc == slap_schema.si_ad_objectClass ) {
 809                         if( ocmod != NULL ) {
 810                                 *text = "entry has multiple objectClass attributes";
 811                                 return LDAP_OBJECT_CLASS_VIOLATION;
 812                         }
 813                         ocmod = mods;
 814                 }
 815         }
 816
 817         if( ocmod == NULL ) {
 818                 *text = "entry has no objectClass attribute";
 819                 return LDAP_OBJECT_CLASS_VIOLATION;
 820         }
 821
 822         if( ocmod->sml_bvalues == NULL || ocmod->sml_bvalues[0].bv_val == NULL ) {
 823                 *text = "objectClass attribute has no values";
 824                 return LDAP_OBJECT_CLASS_VIOLATION;
 825         }
 826
 827         return structural_class( ocmod->sml_bvalues, sc, NULL,
 828                 text, textbuf, textlen );
 829 }
 830
 831
 832 static int
 833 entry_naming_check(
 834         Entry *e,
 835         const char** text,
 836         char *textbuf, size_t textlen )
 837 {
 838         /* naming check */
 839         LDAPRDN         rdn = NULL;
 840         const char      *p = NULL;
 841         ber_len_t       cnt;
 842         int             rc = LDAP_SUCCESS;
 843
 844         /*
 845          * Get attribute type(s) and attribute value(s) of our RDN
 846          */
 847         if ( ldap_bv2rdn( &e->e_name, &rdn, (char **)&p,
 848                 LDAP_DN_FORMAT_LDAP ) )
 849         {
 850                 *text = "unrecongized attribute type(s) in RDN";
 851                 return LDAP_INVALID_DN_SYNTAX;
 852         }
 853
 854         /* Check that each AVA of the RDN is present in the entry */
 855         /* FIXME: Should also check that each AVA lists a distinct type */
 856         for ( cnt = 0; rdn[cnt]; cnt++ ) {
 857                 LDAPAVA *ava = rdn[cnt];
 858                 AttributeDescription *desc = NULL;
 859                 Attribute *attr;
 860                 const char *errtext;
 861
 862                 rc = slap_bv2ad( &ava->la_attr, &desc, &errtext );
 863                 if ( rc != LDAP_SUCCESS ) {
 864                         snprintf( textbuf, textlen, "%s (in RDN)", errtext );
 865                         break;
 866                 }
 867
 868                 /* find the naming attribute */
 869                 attr = attr_find( e->e_attrs, desc );
 870                 if ( attr == NULL ) {
 871                         snprintf( textbuf, textlen,
 872                                 "naming attribute '%s' is not present in entry",
 873                                 ava->la_attr.bv_val );
 874                         rc = LDAP_NAMING_VIOLATION;
 875                         break;
 876                 }
 877
 878                 if( ava->la_flags & LDAP_AVA_BINARY ) {
 879                         snprintf( textbuf, textlen,
 880                                 "value of naming attribute '%s' in unsupported BER form",
 881                                 ava->la_attr.bv_val );
 882                         rc = LDAP_NAMING_VIOLATION;
 883                 }
 884
 885                 if ( value_find_ex( desc,
 886                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 887                         attr->a_nvals,
 888                         &ava->la_value, NULL ) != 0 )
 889                 {
 890                         snprintf( textbuf, textlen,
 891                                 "value of naming attribute '%s' is not present in entry",
 892                                 ava->la_attr.bv_val );
 893                         rc = LDAP_NAMING_VIOLATION;
 894                         break;
 895                 }
 896         }
 897
 898         ldap_rdnfree( rdn );
 899         return rc;
 900 }
 901