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 1998-2004 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 #include "ldap_pvt.h"
  27
  28 static char * oc_check_required(
  29         Entry *e,
  30         ObjectClass *oc,
  31         struct berval *ocname );
  32
  33 static int entry_naming_check(
  34         Entry *e,
  35         const char** text,
  36         char *textbuf, size_t textlen );
  37 /*
  38  * entry_schema_check - check that entry e conforms to the schema required
  39  * by its object class(es).
  40  *
  41  * returns 0 if so, non-zero otherwise.
  42  */
  43
  44 int
  45 entry_schema_check(
  46         Backend *be,
  47         Entry *e,
  48         Attribute *oldattrs,
  49         const char** text,
  50         char *textbuf, size_t textlen )
  51 {
  52         Attribute       *a, *asc, *aoc;
  53         ObjectClass *sc, *oc;
  54         AttributeType *at;
  55         ContentRule *cr;
  56         int     rc, i;
  57         struct berval nsc;
  58         AttributeDescription *ad_structuralObjectClass
  59                 = slap_schema.si_ad_structuralObjectClass;
  60         AttributeDescription *ad_objectClass
  61                 = slap_schema.si_ad_objectClass;
  62         int extensible = 0;
  63         int subentry = is_entry_subentry( e );
  64         int collectiveSubentry = 0;
  65
  66         if ( SLAP_NO_SCHEMA_CHECK( be )) {
  67                 return LDAP_SUCCESS;
  68         }
  69
  70         if( subentry ) {
  71                 collectiveSubentry = is_entry_collectiveAttributeSubentry( e );
  72         }
  73
  74         *text = textbuf;
  75
  76         /* misc attribute checks */
  77         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
  78                 const char *type = a->a_desc->ad_cname.bv_val;
  79
  80                 /* there should be at least one value */
  81                 assert( a->a_vals );
  82                 assert( a->a_vals[0].bv_val != NULL );
  83
  84                 if( a->a_desc->ad_type->sat_check ) {
  85                         int rc = (a->a_desc->ad_type->sat_check)(
  86                                 be, e, a, text, textbuf, textlen );
  87                         if( rc != LDAP_SUCCESS ) {
  88                                 return rc;
  89                         }
  90                 }
  91
  92                 if( !collectiveSubentry && is_at_collective( a->a_desc->ad_type ) ) {
  93                         snprintf( textbuf, textlen,
  94                                 "'%s' can only appear in collectiveAttributeSubentry",
  95                                 type );
  96                         return LDAP_OBJECT_CLASS_VIOLATION;
  97                 }
  98
  99                 /* if single value type, check for multiple values */
 100                 if( is_at_single_value( a->a_desc->ad_type ) &&
 101                         a->a_vals[1].bv_val != NULL )
 102                 {
 103                         snprintf( textbuf, textlen,
 104                                 "attribute '%s' cannot have multiple values",
 105                                 type );
 106
 107                         Debug( LDAP_DEBUG_ANY,
 108                             "Entry (%s), %s\n",
 109                             e->e_dn, textbuf, 0 );
 110
 111                         return LDAP_CONSTRAINT_VIOLATION;
 112                 }
 113         }
 114
 115         /* it's a REALLY bad idea to disable schema checks */
 116         if( !global_schemacheck ) return LDAP_SUCCESS;
 117
 118         /* find the structural object class attribute */
 119         asc = attr_find( e->e_attrs, ad_structuralObjectClass );
 120         if ( asc == NULL ) {
 121                 Debug( LDAP_DEBUG_ANY,
 122                         "No structuralObjectClass for entry (%s)\n",
 123                     e->e_dn, 0, 0 );
 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                 Debug( LDAP_DEBUG_ANY,
 140                         "entry_check_schema(%s): %s\n",
 141                         e->e_dn, textbuf, 0 );
 142
 143                 return LDAP_OBJECT_CLASS_VIOLATION;
 144         }
 145
 146         if( sc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 147                 snprintf( textbuf, textlen,
 148                         "structuralObjectClass '%s' is not STRUCTURAL",
 149                         asc->a_vals[0].bv_val );
 150
 151                 Debug( LDAP_DEBUG_ANY,
 152                         "entry_check_schema(%s): %s\n",
 153                         e->e_dn, textbuf, 0 );
 154
 155                 return LDAP_OTHER;
 156         }
 157
 158         if( sc->soc_obsolete ) {
 159                 snprintf( textbuf, textlen,
 160                         "structuralObjectClass '%s' is OBSOLETE",
 161                         asc->a_vals[0].bv_val );
 162
 163                 Debug( LDAP_DEBUG_ANY,
 164                         "entry_check_schema(%s): %s\n",
 165                         e->e_dn, textbuf, 0 );
 166
 167                 return LDAP_OBJECT_CLASS_VIOLATION;
 168         }
 169
 170         /* find the object class attribute */
 171         aoc = attr_find( e->e_attrs, ad_objectClass );
 172         if ( aoc == NULL ) {
 173                 Debug( LDAP_DEBUG_ANY, "No objectClass for entry (%s)\n",
 174                     e->e_dn, 0, 0 );
 175
 176                 *text = "no objectClass attribute";
 177                 return LDAP_OBJECT_CLASS_VIOLATION;
 178         }
 179
 180         assert( aoc->a_vals != NULL );
 181         assert( aoc->a_vals[0].bv_val != NULL );
 182
 183         rc = structural_class( aoc->a_vals, &nsc, &oc, text, textbuf, textlen );
 184         if( rc != LDAP_SUCCESS ) {
 185                 return rc;
 186         }
 187
 188         *text = textbuf;
 189
 190         if ( oc == NULL ) {
 191                 snprintf( textbuf, textlen,
 192                         "unrecognized objectClass '%s'",
 193                         aoc->a_vals[0].bv_val );
 194                 return LDAP_OBJECT_CLASS_VIOLATION;
 195
 196         } else if ( sc != slap_schema.si_oc_glue && sc != oc ) {
 197                 snprintf( textbuf, textlen,
 198                         "structural object class modification "
 199                         "from '%s' to '%s' not allowed",
 200                         asc->a_vals[0].bv_val, nsc.bv_val );
 201                 return LDAP_NO_OBJECT_CLASS_MODS;
 202         } else if ( sc == slap_schema.si_oc_glue ) {
 203                 sc = oc;
 204         }
 205
 206         /* naming check */
 207         if ( !is_entry_objectclass ( e, slap_schema.si_oc_glue, 0 ) ) {
 208                 rc = entry_naming_check( e, text, textbuf, textlen );
 209                 if( rc != LDAP_SUCCESS ) {
 210                         return rc;
 211                 }
 212         } else {
 213                 /* Glue Entry */
 214         }
 215
 216         /* find the content rule for the structural class */
 217         cr = cr_find( sc->soc_oid );
 218
 219         /* the cr must be same as the structural class */
 220         assert( !cr || !strcmp( cr->scr_oid, sc->soc_oid ) );
 221
 222         /* check that the entry has required attrs of the content rule */
 223         if( cr ) {
 224                 if( cr->scr_obsolete ) {
 225                         snprintf( textbuf, textlen,
 226                                 "content rule '%s' is obsolete",
 227                                 ldap_contentrule2name( &cr->scr_crule ));
 228
 229                         Debug( LDAP_DEBUG_ANY,
 230                                 "Entry (%s): %s\n",
 231                                 e->e_dn, textbuf, 0 );
 232
 233                         return LDAP_OBJECT_CLASS_VIOLATION;
 234                 }
 235
 236                 if( cr->scr_required ) for( i=0; cr->scr_required[i]; i++ ) {
 237                         at = cr->scr_required[i];
 238
 239                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 240                                 if( a->a_desc->ad_type == at ) {
 241                                         break;
 242                                 }
 243                         }
 244
 245                         /* not there => schema violation */
 246                         if ( a == NULL ) {
 247                                 snprintf( textbuf, textlen,
 248                                         "content rule '%s' requires attribute '%s'",
 249                                         ldap_contentrule2name( &cr->scr_crule ),
 250                                         at->sat_cname.bv_val );
 251
 252                                 Debug( LDAP_DEBUG_ANY,
 253                                         "Entry (%s): %s\n",
 254                                         e->e_dn, textbuf, 0 );
 255
 256                                 return LDAP_OBJECT_CLASS_VIOLATION;
 257                         }
 258                 }
 259
 260                 if( cr->scr_precluded ) for( i=0; cr->scr_precluded[i]; i++ ) {
 261                         at = cr->scr_precluded[i];
 262
 263                         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 264                                 if( a->a_desc->ad_type == at ) {
 265                                         break;
 266                                 }
 267                         }
 268
 269                         /* there => schema violation */
 270                         if ( a != NULL ) {
 271                                 snprintf( textbuf, textlen,
 272                                         "content rule '%s' precluded attribute '%s'",
 273                                         ldap_contentrule2name( &cr->scr_crule ),
 274                                         at->sat_cname.bv_val );
 275
 276                                 Debug( LDAP_DEBUG_ANY,
 277                                         "Entry (%s): %s\n",
 278                                         e->e_dn, textbuf, 0 );
 279
 280                                 return LDAP_OBJECT_CLASS_VIOLATION;
 281                         }
 282                 }
 283         }
 284
 285         /* check that the entry has required attrs for each oc */
 286         for ( i = 0; aoc->a_vals[i].bv_val != NULL; i++ ) {
 287                 if ( (oc = oc_bvfind( &aoc->a_vals[i] )) == NULL ) {
 288                         snprintf( textbuf, textlen,
 289                                 "unrecognized objectClass '%s'",
 290                                 aoc->a_vals[i].bv_val );
 291
 292                         Debug( LDAP_DEBUG_ANY,
 293                                 "entry_check_schema(%s): %s\n",
 294                                 e->e_dn, textbuf, 0 );
 295
 296                         return LDAP_OBJECT_CLASS_VIOLATION;
 297                 }
 298
 299                 if ( oc->soc_obsolete ) {
 300                         /* disallow obsolete classes */
 301                         snprintf( textbuf, textlen,
 302                                 "objectClass '%s' is OBSOLETE",
 303                                 aoc->a_vals[i].bv_val );
 304
 305                         Debug( LDAP_DEBUG_ANY,
 306                                 "entry_check_schema(%s): %s\n",
 307                                 e->e_dn, textbuf, 0 );
 308
 309                         return LDAP_OBJECT_CLASS_VIOLATION;
 310                 }
 311
 312                 if ( oc->soc_check ) {
 313                         int rc = (oc->soc_check)( be, e, oc,
 314                                 text, textbuf, textlen );
 315                         if( rc != LDAP_SUCCESS ) {
 316                                 return rc;
 317                         }
 318                 }
 319
 320                 if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT ) {
 321                         /* object class is abstract */
 322                         if ( oc != slap_schema.si_oc_top &&
 323                                 !is_object_subclass( oc, sc ))
 324                         {
 325                                 int j;
 326                                 ObjectClass *xc = NULL;
 327                                 for( j=0; aoc->a_vals[j].bv_val; j++ ) {
 328                                         if( i != j ) {
 329                                                 xc = oc_bvfind( &aoc->a_vals[i] );
 330                                                 if( xc == NULL ) {
 331                                                         snprintf( textbuf, textlen,
 332                                                                 "unrecognized objectClass '%s'",
 333                                                                 aoc->a_vals[i].bv_val );
 334
 335                                                         Debug( LDAP_DEBUG_ANY,
 336                                                                 "entry_check_schema(%s): %s\n",
 337                                                                 e->e_dn, textbuf, 0 );
 338
 339                                                         return LDAP_OBJECT_CLASS_VIOLATION;
 340                                                 }
 341
 342                                                 /* since we previous check against the
 343                                                  * structural object of this entry, the
 344                                                  * abstract class must be a (direct or indirect)
 345                                                  * superclass of one of the auxiliary classes of
 346                                                  * the entry.
 347                                                  */
 348                                                 if ( xc->soc_kind == LDAP_SCHEMA_AUXILIARY &&
 349                                                         is_object_subclass( oc, xc ) )
 350                                                 {
 351                                                         xc = NULL;
 352                                                         break;
 353                                                 }
 354                                         }
 355                                 }
 356
 357                                 if( xc == NULL ) {
 358                                         snprintf( textbuf, textlen, "instanstantiation of "
 359                                                 "abstract objectClass '%s' not allowed",
 360                                                 aoc->a_vals[i].bv_val );
 361
 362                                         Debug( LDAP_DEBUG_ANY,
 363                                                 "entry_check_schema(%s): %s\n",
 364                                                 e->e_dn, textbuf, 0 );
 365
 366                                         return LDAP_OBJECT_CLASS_VIOLATION;
 367                                 }
 368                         }
 369
 370                 } else if ( oc->soc_kind != LDAP_SCHEMA_STRUCTURAL || oc == sc ) {
 371                         char *s;
 372
 373                         if( oc->soc_kind == LDAP_SCHEMA_AUXILIARY ) {
 374                                 int k;
 375
 376                                 if( cr ) {
 377                                         int j;
 378
 379                                         k = -1;
 380                                         if( cr->scr_auxiliaries ) {
 381                                                 for( j = 0; cr->scr_auxiliaries[j]; j++ ) {
 382                                                         if( cr->scr_auxiliaries[j] == oc ) {
 383                                                                 k = 0;
 384                                                                 break;
 385                                                         }
 386                                                 }
 387                                         }
 388                                 } else if ( global_disallows & SLAP_DISALLOW_AUX_WO_CR ) {
 389                                         k = -1;
 390                                 } else {
 391                                         k = 0;
 392                                 }
 393
 394                                 if( k == -1 ) {
 395                                         snprintf( textbuf, textlen,
 396                                                 "content rule '%s' does not allow class '%s'",
 397                                                 ldap_contentrule2name( &cr->scr_crule ),
 398                                                 oc->soc_cname.bv_val );
 399
 400                                         Debug( LDAP_DEBUG_ANY,
 401                                                 "Entry (%s): %s\n",
 402                                                 e->e_dn, textbuf, 0 );
 403
 404                                         return LDAP_OBJECT_CLASS_VIOLATION;
 405                                 }
 406                         }
 407
 408                         s = oc_check_required( e, oc, &aoc->a_vals[i] );
 409                         if (s != NULL) {
 410                                 snprintf( textbuf, textlen,
 411                                         "object class '%s' requires attribute '%s'",
 412                                         aoc->a_vals[i].bv_val, s );
 413
 414                                 Debug( LDAP_DEBUG_ANY,
 415                                         "Entry (%s): %s\n",
 416                                         e->e_dn, textbuf, 0 );
 417
 418                                 return LDAP_OBJECT_CLASS_VIOLATION;
 419                         }
 420
 421                         if( oc == slap_schema.si_oc_extensibleObject ) {
 422                                 extensible=1;
 423                         }
 424                 }
 425         }
 426
 427         if( extensible ) {
 428                 return LDAP_SUCCESS;
 429         }
 430
 431         /* check that each attr in the entry is allowed by some oc */
 432         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 433                 int ret;
 434
 435                 ret = LDAP_OBJECT_CLASS_VIOLATION;
 436
 437                 if( cr && cr->scr_required ) {
 438                         for( i=0; cr->scr_required[i]; i++ ) {
 439                                 if( cr->scr_required[i] == a->a_desc->ad_type ) {
 440                                         ret = LDAP_SUCCESS;
 441                                         break;
 442                                 }
 443                         }
 444                 }
 445
 446                 if( ret != LDAP_SUCCESS && cr && cr->scr_allowed ) {
 447                         for( i=0; cr->scr_allowed[i]; i++ ) {
 448                                 if( cr->scr_allowed[i] == a->a_desc->ad_type ) {
 449                                         ret = LDAP_SUCCESS;
 450                                         break;
 451                                 }
 452                         }
 453                 }
 454
 455                 if( ret != LDAP_SUCCESS )
 456                 {
 457                         ret = oc_check_allowed( a->a_desc->ad_type, aoc->a_vals, sc );
 458                 }
 459
 460                 if ( ret != LDAP_SUCCESS ) {
 461                         char *type = a->a_desc->ad_cname.bv_val;
 462
 463                         snprintf( textbuf, textlen,
 464                                 "attribute '%s' not allowed",
 465                                 type );
 466
 467                         Debug( LDAP_DEBUG_ANY,
 468                             "Entry (%s), %s\n",
 469                             e->e_dn, textbuf, 0 );
 470
 471                         return ret;
 472                 }
 473         }
 474
 475         return LDAP_SUCCESS;
 476 }
 477
 478 static char *
 479 oc_check_required(
 480         Entry *e,
 481         ObjectClass *oc,
 482         struct berval *ocname )
 483 {
 484         AttributeType   *at;
 485         int             i;
 486         Attribute       *a;
 487
 488         Debug( LDAP_DEBUG_TRACE,
 489                 "oc_check_required entry (%s), objectClass \"%s\"\n",
 490                 e->e_dn, ocname->bv_val, 0 );
 491
 492
 493         /* check for empty oc_required */
 494         if(oc->soc_required == NULL) {
 495                 return NULL;
 496         }
 497
 498         /* for each required attribute */
 499         for ( i = 0; oc->soc_required[i] != NULL; i++ ) {
 500                 at = oc->soc_required[i];
 501                 /* see if it's in the entry */
 502                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 503                         if( a->a_desc->ad_type == at ) {
 504                                 break;
 505                         }
 506                 }
 507                 /* not there => schema violation */
 508                 if ( a == NULL ) {
 509                         return at->sat_cname.bv_val;
 510                 }
 511         }
 512
 513         return( NULL );
 514 }
 515
 516 int oc_check_allowed(
 517         AttributeType *at,
 518         BerVarray ocl,
 519         ObjectClass *sc )
 520 {
 521         int             i, j;
 522
 523         Debug( LDAP_DEBUG_TRACE,
 524                 "oc_check_allowed type \"%s\"\n",
 525                 at->sat_cname.bv_val, 0, 0 );
 526
 527         /* always allow objectClass attribute */
 528         if ( strcasecmp( at->sat_cname.bv_val, "objectClass" ) == 0 ) {
 529                 return LDAP_SUCCESS;
 530         }
 531
 532         /*
 533          * All operational attributions are allowed by schema rules.
 534          */
 535         if( is_at_operational(at) ) {
 536                 return LDAP_SUCCESS;
 537         }
 538
 539         /* check to see if its allowed by the structuralObjectClass */
 540         if( sc ) {
 541                 /* does it require the type? */
 542                 for ( j = 0; sc->soc_required != NULL &&
 543                         sc->soc_required[j] != NULL; j++ )
 544                 {
 545                         if( at == sc->soc_required[j] ) {
 546                                 return LDAP_SUCCESS;
 547                         }
 548                 }
 549
 550                 /* does it allow the type? */
 551                 for ( j = 0; sc->soc_allowed != NULL &&
 552                         sc->soc_allowed[j] != NULL; j++ )
 553                 {
 554                         if( at == sc->soc_allowed[j] ) {
 555                                 return LDAP_SUCCESS;
 556                         }
 557                 }
 558         }
 559
 560         /* check that the type appears as req or opt in at least one oc */
 561         for ( i = 0; ocl[i].bv_val != NULL; i++ ) {
 562                 /* if we know about the oc */
 563                 ObjectClass     *oc = oc_bvfind( &ocl[i] );
 564                 if ( oc != NULL && oc->soc_kind != LDAP_SCHEMA_ABSTRACT &&
 565                         ( sc == NULL || oc->soc_kind == LDAP_SCHEMA_AUXILIARY ))
 566                 {
 567                         /* does it require the type? */
 568                         for ( j = 0; oc->soc_required != NULL &&
 569                                 oc->soc_required[j] != NULL; j++ )
 570                         {
 571                                 if( at == oc->soc_required[j] ) {
 572                                         return LDAP_SUCCESS;
 573                                 }
 574                         }
 575                         /* does it allow the type? */
 576                         for ( j = 0; oc->soc_allowed != NULL &&
 577                                 oc->soc_allowed[j] != NULL; j++ )
 578                         {
 579                                 if( at == oc->soc_allowed[j] ) {
 580                                         return LDAP_SUCCESS;
 581                                 }
 582                         }
 583                 }
 584         }
 585
 586         /* not allowed by any oc */
 587         return LDAP_OBJECT_CLASS_VIOLATION;
 588 }
 589
 590 /*
 591  * Determine the structural object class from a set of OIDs
 592  */
 593 int structural_class(
 594         BerVarray ocs,
 595         struct berval *scbv,
 596         ObjectClass **scp,
 597         const char **text,
 598         char *textbuf, size_t textlen )
 599 {
 600         int i;
 601         ObjectClass *oc;
 602         ObjectClass *sc = NULL;
 603         int scn = -1;
 604
 605         *text = "structural_class: internal error";
 606         scbv->bv_len = 0;
 607
 608         for( i=0; ocs[i].bv_val; i++ ) {
 609                 oc = oc_bvfind( &ocs[i] );
 610
 611                 if( oc == NULL ) {
 612                         snprintf( textbuf, textlen,
 613                                 "unrecognized objectClass '%s'",
 614                                 ocs[i].bv_val );
 615                         *text = textbuf;
 616                         return LDAP_OBJECT_CLASS_VIOLATION;
 617                 }
 618
 619                 if( oc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 620                         if( sc == NULL || is_object_subclass( sc, oc ) ) {
 621                                 sc = oc;
 622                                 scn = i;
 623
 624                         } else if ( !is_object_subclass( oc, sc ) ) {
 625                                 int j;
 626                                 ObjectClass *xc = NULL;
 627
 628                                 /* find common superior */
 629                                 for( j=i+1; ocs[j].bv_val; j++ ) {
 630                                         xc = oc_bvfind( &ocs[j] );
 631
 632                                         if( xc == NULL ) {
 633                                                 snprintf( textbuf, textlen,
 634                                                         "unrecognized objectClass '%s'",
 635                                                         ocs[j].bv_val );
 636                                                 *text = textbuf;
 637                                                 return LDAP_OBJECT_CLASS_VIOLATION;
 638                                         }
 639
 640                                         if( xc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
 641                                                 xc = NULL;
 642                                                 continue;
 643                                         }
 644
 645                                         if( is_object_subclass( sc, xc ) &&
 646                                                 is_object_subclass( oc, xc ) )
 647                                         {
 648                                                 /* found common subclass */
 649                                                 break;
 650                                         }
 651
 652                                         xc = NULL;
 653                                 }
 654
 655                                 if( xc == NULL ) {
 656                                         /* no common subclass */
 657                                         snprintf( textbuf, textlen,
 658                                                 "invalid structural object class chain (%s/%s)",
 659                                                 ocs[scn].bv_val, ocs[i].bv_val );
 660                                         *text = textbuf;
 661                                         return LDAP_OBJECT_CLASS_VIOLATION;
 662                                 }
 663                         }
 664                 }
 665         }
 666
 667         if( scp ) {
 668                 *scp = sc;
 669         }
 670
 671         if( sc == NULL ) {
 672                 *text = "no structural object class provided";
 673                 return LDAP_OBJECT_CLASS_VIOLATION;
 674         }
 675
 676         if( scn < 0 ) {
 677                 *text = "invalid structural object class";
 678                 return LDAP_OBJECT_CLASS_VIOLATION;
 679         }
 680
 681         *scbv = ocs[scn];
 682
 683         if( scbv->bv_len == 0 ) {
 684                 *text = "invalid structural object class";
 685                 return LDAP_OBJECT_CLASS_VIOLATION;
 686         }
 687
 688         return LDAP_SUCCESS;
 689 }
 690
 691 /*
 692  * Return structural object class from list of modifications
 693  */
 694 int mods_structural_class(
 695         Modifications *mods,
 696         struct berval *sc,
 697         const char **text,
 698         char *textbuf, size_t textlen )
 699 {
 700         Modifications *ocmod = NULL;
 701
 702         for( ; mods != NULL; mods = mods->sml_next ) {
 703                 if( mods->sml_desc == slap_schema.si_ad_objectClass ) {
 704                         if( ocmod != NULL ) {
 705                                 *text = "entry has multiple objectClass attributes";
 706                                 return LDAP_OBJECT_CLASS_VIOLATION;
 707                         }
 708                         ocmod = mods;
 709                 }
 710         }
 711
 712         if( ocmod == NULL ) {
 713                 *text = "entry has no objectClass attribute";
 714                 return LDAP_OBJECT_CLASS_VIOLATION;
 715         }
 716
 717         if( ocmod->sml_values == NULL || ocmod->sml_values[0].bv_val == NULL ) {
 718                 *text = "objectClass attribute has no values";
 719                 return LDAP_OBJECT_CLASS_VIOLATION;
 720         }
 721
 722         return structural_class( ocmod->sml_values, sc, NULL,
 723                 text, textbuf, textlen );
 724 }
 725
 726
 727 static int
 728 entry_naming_check(
 729         Entry *e,
 730         const char** text,
 731         char *textbuf, size_t textlen )
 732 {
 733         /* naming check */
 734         LDAPRDN         rdn = NULL;
 735         const char      *p = NULL;
 736         ber_len_t       cnt;
 737         int             rc = LDAP_SUCCESS;
 738
 739         /*
 740          * Get attribute type(s) and attribute value(s) of our RDN
 741          */
 742         if ( ldap_bv2rdn( &e->e_name, &rdn, (char **)&p,
 743                 LDAP_DN_FORMAT_LDAP ) )
 744         {
 745                 *text = "unrecongized attribute type(s) in RDN";
 746                 return LDAP_INVALID_DN_SYNTAX;
 747         }
 748
 749         /* Check that each AVA of the RDN is present in the entry */
 750         /* FIXME: Should also check that each AVA lists a distinct type */
 751         for ( cnt = 0; rdn[cnt]; cnt++ ) {
 752                 LDAPAVA *ava = rdn[cnt];
 753                 AttributeDescription *desc = NULL;
 754                 Attribute *attr;
 755                 const char *errtext;
 756
 757                 if( ava->la_flags & LDAP_AVA_BINARY ) {
 758                         snprintf( textbuf, textlen,
 759                                 "value of naming attribute '%s' in unsupported BER form",
 760                                 ava->la_attr.bv_val );
 761                         rc = LDAP_NAMING_VIOLATION;
 762                 }
 763
 764                 rc = slap_bv2ad( &ava->la_attr, &desc, &errtext );
 765                 if ( rc != LDAP_SUCCESS ) {
 766                         snprintf( textbuf, textlen, "%s (in RDN)", errtext );
 767                         break;
 768                 }
 769
 770                 if( desc->ad_type->sat_usage ) {
 771                         snprintf( textbuf, textlen,
 772                                 "naming attribute '%s' is operational",
 773                                 ava->la_attr.bv_val );
 774                         rc = LDAP_NAMING_VIOLATION;
 775                         break;
 776                 }
 777
 778                 if( desc->ad_type->sat_collective ) {
 779                         snprintf( textbuf, textlen,
 780                                 "naming attribute '%s' is collective",
 781                                 ava->la_attr.bv_val );
 782                         rc = LDAP_NAMING_VIOLATION;
 783                         break;
 784                 }
 785
 786                 if( desc->ad_type->sat_obsolete ) {
 787                         snprintf( textbuf, textlen,
 788                                 "naming attribute '%s' is obsolete",
 789                                 ava->la_attr.bv_val );
 790                         rc = LDAP_NAMING_VIOLATION;
 791                         break;
 792                 }
 793
 794                 if( !desc->ad_type->sat_equality ) {
 795                         snprintf( textbuf, textlen,
 796                                 "naming attribute '%s' has no equality matching rule",
 797                                 ava->la_attr.bv_val );
 798                         rc = LDAP_NAMING_VIOLATION;
 799                         break;
 800                 }
 801
 802                 if( !desc->ad_type->sat_equality->smr_match ) {
 803                         snprintf( textbuf, textlen,
 804                                 "naming attribute '%s' has unsupported equality matching rule",
 805                                 ava->la_attr.bv_val );
 806                         rc = LDAP_NAMING_VIOLATION;
 807                         break;
 808                 }
 809
 810                 /* find the naming attribute */
 811                 attr = attr_find( e->e_attrs, desc );
 812                 if ( attr == NULL ) {
 813                         snprintf( textbuf, textlen,
 814                                 "naming attribute '%s' is not present in entry",
 815                                 ava->la_attr.bv_val );
 816                         rc = LDAP_NAMING_VIOLATION;
 817                         break;
 818                 }
 819
 820                 rc = value_find_ex( desc, SLAP_MR_VALUE_OF_ASSERTION_SYNTAX|
 821                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 822                         attr->a_nvals, &ava->la_value, NULL );
 823
 824                 if( rc != 0 ) {
 825                         switch( rc ) {
 826                         case LDAP_INAPPROPRIATE_MATCHING:
 827                                 snprintf( textbuf, textlen,
 828                                         "inappropriate matching for naming attribute '%s'",
 829                                         ava->la_attr.bv_val );
 830                                 break;
 831                         case LDAP_INVALID_SYNTAX:
 832                                 snprintf( textbuf, textlen,
 833                                         "value of naming attribute '%s' is invalid",
 834                                         ava->la_attr.bv_val );
 835                                 break;
 836                         case LDAP_NO_SUCH_ATTRIBUTE:
 837                                 snprintf( textbuf, textlen,
 838                                         "value of naming attribute '%s' is not present in entry",
 839                                         ava->la_attr.bv_val );
 840                                 break;
 841                         default:
 842                                 snprintf( textbuf, textlen,
 843                                         "naming attribute '%s' is inappropriate",
 844                                         ava->la_attr.bv_val );
 845                         }
 846                         rc = LDAP_NAMING_VIOLATION;
 847                         break;
 848                 }
 849         }
 850
 851         ldap_rdnfree( rdn );
 852         return rc;
 853 }
 854