1 /* schema_check.c - routines to enforce schema definitions */
4 * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
5 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
13 #include <ac/string.h>
14 #include <ac/socket.h>
19 static char * oc_check_required(
22 struct berval *ocname );
24 static int entry_naming_check(
27 char *textbuf, size_t textlen );
29 * entry_schema_check - check that entry e conforms to the schema required
30 * by its object class(es).
32 * returns 0 if so, non-zero otherwise.
41 char *textbuf, size_t textlen )
43 Attribute *a, *asc, *aoc;
45 #ifdef SLAP_EXTENDED_SCHEMA
51 AttributeDescription *ad_structuralObjectClass
52 = slap_schema.si_ad_structuralObjectClass;
53 AttributeDescription *ad_objectClass
54 = slap_schema.si_ad_objectClass;
56 int subentry = is_entry_subentry( e );
57 int collectiveSubentry = 0;
60 collectiveSubentry = is_entry_collectiveAttributeSubentry( e );
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;
69 /* there should be at least one value */
71 assert( a->a_vals[0].bv_val != NULL );
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 ) {
81 if( !collectiveSubentry && is_at_collective( a->a_desc->ad_type ) ) {
82 snprintf( textbuf, textlen,
83 "'%s' can only appear in collectiveAttributeSubentry",
85 return LDAP_OBJECT_CLASS_VIOLATION;
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 )
92 snprintf( textbuf, textlen,
93 "attribute '%s' cannot have multiple values",
97 LDAP_LOG( OPERATION, INFO,
98 "entry_schema_check: dn=\"%s\" %s\n", e->e_dn, textbuf, 0 );
100 Debug( LDAP_DEBUG_ANY,
102 e->e_dn, textbuf, 0 );
105 return LDAP_CONSTRAINT_VIOLATION;
109 /* it's a REALLY bad idea to disable schema checks */
110 if( !global_schemacheck ) return LDAP_SUCCESS;
112 /* find the structural object class attribute */
113 asc = attr_find( e->e_attrs, ad_structuralObjectClass );
116 LDAP_LOG( OPERATION, INFO,
117 "entry_schema_check: No structuralObjectClass for entry (%s)\n",
120 Debug( LDAP_DEBUG_ANY,
121 "No structuralObjectClass for entry (%s)\n",
125 *text = "no structuralObjectClass operational attribute";
129 assert( asc->a_vals != NULL );
130 assert( asc->a_vals[0].bv_val != NULL );
131 assert( asc->a_vals[1].bv_val == NULL );
133 sc = oc_bvfind( &asc->a_vals[0] );
135 snprintf( textbuf, textlen,
136 "unrecognized structuralObjectClass '%s'",
137 asc->a_vals[0].bv_val );
140 LDAP_LOG( OPERATION, INFO,
141 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
143 Debug( LDAP_DEBUG_ANY,
144 "entry_check_schema(%s): %s\n",
145 e->e_dn, textbuf, 0 );
148 return LDAP_OBJECT_CLASS_VIOLATION;
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 );
157 LDAP_LOG( OPERATION, INFO,
158 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
160 Debug( LDAP_DEBUG_ANY,
161 "entry_check_schema(%s): %s\n",
162 e->e_dn, textbuf, 0 );
168 if( sc->soc_obsolete ) {
169 snprintf( textbuf, textlen,
170 "structuralObjectClass '%s' is OBSOLETE",
171 asc->a_vals[0].bv_val );
174 LDAP_LOG( OPERATION, INFO,
175 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
177 Debug( LDAP_DEBUG_ANY,
178 "entry_check_schema(%s): %s\n",
179 e->e_dn, textbuf, 0 );
182 return LDAP_OBJECT_CLASS_VIOLATION;
185 /* find the object class attribute */
186 aoc = attr_find( e->e_attrs, ad_objectClass );
189 LDAP_LOG( OPERATION, INFO,
190 "entry_schema_check: No objectClass for entry (%s).\n",
193 Debug( LDAP_DEBUG_ANY, "No objectClass for entry (%s)\n",
197 *text = "no objectClass attribute";
198 return LDAP_OBJECT_CLASS_VIOLATION;
201 assert( aoc->a_vals != NULL );
202 assert( aoc->a_vals[0].bv_val != NULL );
204 rc = structural_class( aoc->a_vals, &nsc, &oc, text, textbuf, textlen );
205 if( rc != LDAP_SUCCESS ) {
212 snprintf( textbuf, textlen,
213 "unrecognized objectClass '%s'",
214 aoc->a_vals[0].bv_val );
215 return LDAP_OBJECT_CLASS_VIOLATION;
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;
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 ) {
236 rc = entry_naming_check( e, text, textbuf, textlen );
237 if( rc != LDAP_SUCCESS ) {
242 #ifdef SLAP_EXTENDED_SCHEMA
243 /* find the content rule for the structural class */
244 cr = cr_find( sc->soc_oid );
246 /* the cr must be same as the structural class */
247 assert( !cr || !strcmp( cr->scr_oid, sc->soc_oid ) );
249 /* check that the entry has required attrs of the content rule */
251 if( cr->scr_obsolete ) {
252 snprintf( textbuf, textlen,
253 "content rule '%s' is obsolete",
254 ldap_contentrule2name( &cr->scr_crule ));
257 LDAP_LOG( OPERATION, INFO,
258 "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
260 Debug( LDAP_DEBUG_ANY,
262 e->e_dn, textbuf, 0 );
265 return LDAP_OBJECT_CLASS_VIOLATION;
268 if( cr->scr_required ) for( i=0; cr->scr_required[i]; i++ ) {
269 at = cr->scr_required[i];
271 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
272 if( a->a_desc->ad_type == at ) {
277 /* not there => schema violation */
279 snprintf( textbuf, textlen,
280 "content rule '%s' requires attribute '%s'",
281 ldap_contentrule2name( &cr->scr_crule ),
282 at->sat_cname.bv_val );
285 LDAP_LOG( OPERATION, INFO,
286 "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
288 Debug( LDAP_DEBUG_ANY,
290 e->e_dn, textbuf, 0 );
293 return LDAP_OBJECT_CLASS_VIOLATION;
297 if( cr->scr_precluded ) for( i=0; cr->scr_precluded[i]; i++ ) {
298 at = cr->scr_precluded[i];
300 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
301 if( a->a_desc->ad_type == at ) {
306 /* there => schema violation */
308 snprintf( textbuf, textlen,
309 "content rule '%s' precluded attribute '%s'",
310 ldap_contentrule2name( &cr->scr_crule ),
311 at->sat_cname.bv_val );
314 LDAP_LOG( OPERATION, INFO,
315 "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
317 Debug( LDAP_DEBUG_ANY,
319 e->e_dn, textbuf, 0 );
322 return LDAP_OBJECT_CLASS_VIOLATION;
326 #endif /* SLAP_EXTENDED_SCHEMA */
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 );
336 LDAP_LOG( OPERATION, INFO,
337 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
339 Debug( LDAP_DEBUG_ANY,
340 "entry_check_schema(%s): %s\n",
341 e->e_dn, textbuf, 0 );
344 return LDAP_OBJECT_CLASS_VIOLATION;
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 );
354 LDAP_LOG( OPERATION, INFO,
355 "entry_schema_check: dn (%s), %s\n", e->e_dn, textbuf, 0 );
357 Debug( LDAP_DEBUG_ANY,
358 "entry_check_schema(%s): %s\n",
359 e->e_dn, textbuf, 0 );
362 return LDAP_OBJECT_CLASS_VIOLATION;
365 if ( oc->soc_check ) {
366 int rc = (oc->soc_check)( be, e, oc,
367 text, textbuf, textlen );
368 if( rc != LDAP_SUCCESS ) {
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 ))
379 ObjectClass *xc = NULL;
380 for( j=0; aoc->a_vals[j].bv_val; j++ ) {
382 xc = oc_bvfind( &aoc->a_vals[i] );
384 snprintf( textbuf, textlen,
385 "unrecognized objectClass '%s'",
386 aoc->a_vals[i].bv_val );
389 LDAP_LOG( OPERATION, INFO,
390 "entry_schema_check: dn (%s), %s\n",
391 e->e_dn, textbuf, 0 );
393 Debug( LDAP_DEBUG_ANY,
394 "entry_check_schema(%s): %s\n",
395 e->e_dn, textbuf, 0 );
398 return LDAP_OBJECT_CLASS_VIOLATION;
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
407 if ( xc->soc_kind == LDAP_SCHEMA_AUXILIARY &&
408 is_object_subclass( oc, xc ) )
417 snprintf( textbuf, textlen, "instanstantiation of "
418 "abstract objectClass '%s' not allowed",
419 aoc->a_vals[i].bv_val );
422 LDAP_LOG( OPERATION, INFO,
423 "entry_schema_check: dn (%s), %s\n",
424 e->e_dn, textbuf, 0 );
426 Debug( LDAP_DEBUG_ANY,
427 "entry_check_schema(%s): %s\n",
428 e->e_dn, textbuf, 0 );
431 return LDAP_OBJECT_CLASS_VIOLATION;
435 } else if ( oc->soc_kind != LDAP_SCHEMA_STRUCTURAL || oc == sc ) {
438 #ifdef SLAP_EXTENDED_SCHEMA
439 if( oc->soc_kind == LDAP_SCHEMA_AUXILIARY ) {
446 if( cr->scr_auxiliaries ) {
447 for( j = 0; cr->scr_auxiliaries[j]; j++ ) {
448 if( cr->scr_auxiliaries[j] == oc ) {
454 } else if ( global_disallows & SLAP_DISALLOW_AUX_WO_CR ) {
461 snprintf( textbuf, textlen,
462 "content rule '%s' does not allow class '%s'",
463 ldap_contentrule2name( &cr->scr_crule ),
464 oc->soc_cname.bv_val );
467 LDAP_LOG( OPERATION, INFO,
468 "entry_schema_check: dn=\"%s\" %s",
469 e->e_dn, textbuf, 0 );
471 Debug( LDAP_DEBUG_ANY,
473 e->e_dn, textbuf, 0 );
476 return LDAP_OBJECT_CLASS_VIOLATION;
479 #endif /* SLAP_EXTENDED_SCHEMA */
481 s = oc_check_required( e, oc, &aoc->a_vals[i] );
483 snprintf( textbuf, textlen,
484 "object class '%s' requires attribute '%s'",
485 aoc->a_vals[i].bv_val, s );
488 LDAP_LOG( OPERATION, INFO,
489 "entry_schema_check: dn=\"%s\" %s", e->e_dn, textbuf, 0 );
491 Debug( LDAP_DEBUG_ANY,
493 e->e_dn, textbuf, 0 );
496 return LDAP_OBJECT_CLASS_VIOLATION;
499 if( oc == slap_schema.si_oc_extensibleObject ) {
509 /* check that each attr in the entry is allowed by some oc */
510 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
513 #ifdef SLAP_EXTENDED_SCHEMA
514 ret = LDAP_OBJECT_CLASS_VIOLATION;
516 if( cr && cr->scr_required ) {
517 for( i=0; cr->scr_required[i]; i++ ) {
518 if( cr->scr_required[i] == a->a_desc->ad_type ) {
525 if( ret != LDAP_SUCCESS && cr && cr->scr_allowed ) {
526 for( i=0; cr->scr_allowed[i]; i++ ) {
527 if( cr->scr_allowed[i] == a->a_desc->ad_type ) {
534 if( ret != LDAP_SUCCESS )
535 #endif /* SLAP_EXTENDED_SCHEMA */
537 ret = oc_check_allowed( a->a_desc->ad_type, aoc->a_vals, sc );
540 if ( ret != LDAP_SUCCESS ) {
541 char *type = a->a_desc->ad_cname.bv_val;
543 snprintf( textbuf, textlen,
544 "attribute '%s' not allowed",
548 LDAP_LOG( OPERATION, INFO,
549 "entry_schema_check: dn=\"%s\" %s\n", e->e_dn, textbuf, 0);
551 Debug( LDAP_DEBUG_ANY,
553 e->e_dn, textbuf, 0 );
567 struct berval *ocname )
574 LDAP_LOG( OPERATION, ENTRY,
575 "oc_check_required: dn (%s), objectClass \"%s\"\n",
576 e->e_dn, ocname->bv_val, 0 );
578 Debug( LDAP_DEBUG_TRACE,
579 "oc_check_required entry (%s), objectClass \"%s\"\n",
580 e->e_dn, ocname->bv_val, 0 );
584 /* check for empty oc_required */
585 if(oc->soc_required == NULL) {
589 /* for each required attribute */
590 for ( i = 0; oc->soc_required[i] != NULL; i++ ) {
591 at = oc->soc_required[i];
592 /* see if it's in the entry */
593 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
594 if( a->a_desc->ad_type == at ) {
598 /* not there => schema violation */
600 return at->sat_cname.bv_val;
607 int oc_check_allowed(
615 LDAP_LOG( OPERATION, ENTRY,
616 "oc_check_allowed: type \"%s\"\n", at->sat_cname.bv_val, 0, 0 );
618 Debug( LDAP_DEBUG_TRACE,
619 "oc_check_allowed type \"%s\"\n",
620 at->sat_cname.bv_val, 0, 0 );
623 /* always allow objectClass attribute */
624 if ( strcasecmp( at->sat_cname.bv_val, "objectClass" ) == 0 ) {
629 * All operational attributions are allowed by schema rules.
631 if( is_at_operational(at) ) {
635 /* check to see if its allowed by the structuralObjectClass */
637 /* does it require the type? */
638 for ( j = 0; sc->soc_required != NULL &&
639 sc->soc_required[j] != NULL; j++ )
641 if( at == sc->soc_required[j] ) {
646 /* does it allow the type? */
647 for ( j = 0; sc->soc_allowed != NULL &&
648 sc->soc_allowed[j] != NULL; j++ )
650 if( at == sc->soc_allowed[j] ) {
656 /* check that the type appears as req or opt in at least one oc */
657 for ( i = 0; ocl[i].bv_val != NULL; i++ ) {
658 /* if we know about the oc */
659 ObjectClass *oc = oc_bvfind( &ocl[i] );
660 if ( oc != NULL && oc->soc_kind != LDAP_SCHEMA_ABSTRACT &&
661 ( sc == NULL || oc->soc_kind == LDAP_SCHEMA_AUXILIARY ))
663 /* does it require the type? */
664 for ( j = 0; oc->soc_required != NULL &&
665 oc->soc_required[j] != NULL; j++ )
667 if( at == oc->soc_required[j] ) {
671 /* does it allow the type? */
672 for ( j = 0; oc->soc_allowed != NULL &&
673 oc->soc_allowed[j] != NULL; j++ )
675 if( at == oc->soc_allowed[j] ) {
682 /* not allowed by any oc */
683 return LDAP_OBJECT_CLASS_VIOLATION;
687 * Determine the structural object class from a set of OIDs
689 int structural_class(
694 char *textbuf, size_t textlen )
698 ObjectClass *sc = NULL;
701 *text = "structural_class: internal error";
704 for( i=0; ocs[i].bv_val; i++ ) {
705 oc = oc_bvfind( &ocs[i] );
708 snprintf( textbuf, textlen,
709 "unrecognized objectClass '%s'",
712 return LDAP_OBJECT_CLASS_VIOLATION;
715 if( oc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
716 if( sc == NULL || is_object_subclass( sc, oc ) ) {
720 } else if ( !is_object_subclass( oc, sc ) ) {
722 ObjectClass *xc = NULL;
724 /* find common superior */
725 for( j=i+1; ocs[j].bv_val; j++ ) {
726 xc = oc_bvfind( &ocs[j] );
729 snprintf( textbuf, textlen,
730 "unrecognized objectClass '%s'",
733 return LDAP_OBJECT_CLASS_VIOLATION;
736 if( xc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
741 if( is_object_subclass( sc, xc ) &&
742 is_object_subclass( oc, xc ) )
744 /* found common subclass */
752 /* no common subclass */
753 snprintf( textbuf, textlen,
754 "invalid structural object class chain (%s/%s)",
755 ocs[scn].bv_val, ocs[i].bv_val );
757 return LDAP_OBJECT_CLASS_VIOLATION;
768 *text = "no structural object class provided";
769 return LDAP_OBJECT_CLASS_VIOLATION;
773 *text = "invalid structural object class";
774 return LDAP_OBJECT_CLASS_VIOLATION;
779 if( scbv->bv_len == 0 ) {
780 *text = "invalid structural object class";
781 return LDAP_OBJECT_CLASS_VIOLATION;
788 * Return structural object class from list of modifications
790 int mods_structural_class(
794 char *textbuf, size_t textlen )
796 Modifications *ocmod = NULL;
798 for( ; mods != NULL; mods = mods->sml_next ) {
799 if( mods->sml_desc == slap_schema.si_ad_objectClass ) {
800 if( ocmod != NULL ) {
801 *text = "entry has multiple objectClass attributes";
802 return LDAP_OBJECT_CLASS_VIOLATION;
808 if( ocmod == NULL ) {
809 *text = "entry has no objectClass attribute";
810 return LDAP_OBJECT_CLASS_VIOLATION;
813 if( ocmod->sml_bvalues == NULL || ocmod->sml_bvalues[0].bv_val == NULL ) {
814 *text = "objectClass attribute has no values";
815 return LDAP_OBJECT_CLASS_VIOLATION;
818 return structural_class( ocmod->sml_bvalues, sc, NULL,
819 text, textbuf, textlen );
827 char *textbuf, size_t textlen )
831 const char *p = NULL;
833 int rc = LDAP_SUCCESS;
836 * Get attribute type(s) and attribute value(s) of our RDN
838 if ( ldap_bv2rdn( &e->e_name, &rdn, (char **)&p,
839 LDAP_DN_FORMAT_LDAP ) )
841 *text = "unrecongized attribute type(s) in RDN";
842 return LDAP_INVALID_DN_SYNTAX;
845 /* Check that each AVA of the RDN is present in the entry */
846 /* FIXME: Should also check that each AVA lists a distinct type */
847 for ( cnt = 0; rdn[cnt]; cnt++ ) {
848 LDAPAVA *ava = rdn[cnt];
849 AttributeDescription *desc = NULL;
853 rc = slap_bv2ad( &ava->la_attr, &desc, &errtext );
854 if ( rc != LDAP_SUCCESS ) {
855 snprintf( textbuf, textlen, "%s (in RDN)", errtext );
859 /* find the naming attribute */
860 attr = attr_find( e->e_attrs, desc );
861 if ( attr == NULL ) {
862 snprintf( textbuf, textlen,
863 "naming attribute '%s' is not present in entry",
864 ava->la_attr.bv_val );
865 rc = LDAP_NAMING_VIOLATION;
869 if( ava->la_flags & LDAP_AVA_BINARY ) {
870 snprintf( textbuf, textlen,
871 "value of naming attribute '%s' in unsupported BER form",
872 ava->la_attr.bv_val );
873 rc = LDAP_NAMING_VIOLATION;
876 if ( value_find_ex( desc,
877 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
879 &ava->la_value, NULL ) != 0 )
881 snprintf( textbuf, textlen,
882 "value of naming attribute '%s' is not present in entry",
883 ava->la_attr.bv_val );
884 rc = LDAP_NAMING_VIOLATION;