]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/schema_prep.c
More system schema checks
[openldap] / servers / slapd / schema_prep.c
index a646c9937f08c441022e1556f066d3bb59d348bd..2c41c0d368954ddbf59dc7bbaf839fa8424bd7f2 100644 (file)
@@ -115,29 +115,77 @@ structuralObjectClassMatch(
        return LDAP_SUCCESS;
 }
 
+static ObjectClassSchemaCheckFN rootDseObjectClass;
+static ObjectClassSchemaCheckFN aliasObjectClass;
+static ObjectClassSchemaCheckFN referralObjectClass;
+static ObjectClassSchemaCheckFN subentryObjectClass;
+static ObjectClassSchemaCheckFN dynamicObjectClass;
+
 static struct slap_schema_oc_map {
        char *ssom_name;
        char *ssom_defn;
        ObjectClassSchemaCheckFN *ssom_check;
        size_t ssom_offset;
 } oc_map[] = {
-       { "top", NULL, 0,
-               offsetof(struct slap_internal_schema, si_oc_top) },
-       { "extensibleObject", NULL, 0,
-               offsetof(struct slap_internal_schema, si_oc_extensibleObject) },
-       { "alias", NULL, 0,
+       { "top", "( 2.5.6.0 NAME 'top' "
+                       "DESC 'top of the superclass chain' "
+                       "ABSTRACT MUST objectClass )",
+               0, offsetof(struct slap_internal_schema, si_oc_top) },
+       { "extensibleObject", "( 1.3.6.1.4.1.1466.101.120.111 "
+                       "NAME 'extensibleObject' "
+                       "DESC 'RFC2252: extensible object' "
+                       "SUP top AUXILIARY )",
+               0, offsetof(struct slap_internal_schema, si_oc_extensibleObject) },
+       { "alias", "( 2.5.6.1 NAME 'alias' "
+                       "DESC 'RFC2256: an alias' "
+                       "SUP top STRUCTURAL "
+                       "MUST aliasedObjectName )",
+               aliasObjectClass,
                offsetof(struct slap_internal_schema, si_oc_alias) },
-       { "referral", NULL, 0,
+       { "referral", "( 2.16.840.1.113730.3.2.6 NAME 'referral' "
+                       "DESC 'namedref: named subordinate referral' "
+                       "SUP top STRUCTURAL MUST ref )",
+               referralObjectClass,
                offsetof(struct slap_internal_schema, si_oc_referral) },
-       { "LDAProotDSE", NULL, 0,
+       { "LDAProotDSE", "( 1.3.6.1.4.1.4203.1.4.1 "
+                       "NAME ( 'OpenLDAProotDSE' 'LDAProotDSE' ) "
+                       "DESC 'OpenLDAP Root DSE object' "
+                       "SUP top STRUCTURAL MAY cn )",
+               rootDseObjectClass,
                offsetof(struct slap_internal_schema, si_oc_rootdse) },
-       { "subentry", NULL, 0,
+       { "subentry", "( 2.5.20.0 NAME 'subentry' "
+                       "SUP top STRUCTURAL "
+                       "MUST ( cn $ subtreeSpecification ) )",
+               subentryObjectClass,
                offsetof(struct slap_internal_schema, si_oc_subentry) },
-       { "subschema", NULL, 0,
+       { "subschema", "( 2.5.20.1 NAME 'subschema' "
+               "DESC 'RFC2252: controlling subschema (sub)entry' "
+               "AUXILIARY "
+               "MAY ( dITStructureRules $ nameForms $ ditContentRules $ "
+                       "objectClasses $ attributeTypes $ matchingRules $ "
+                       "matchingRuleUse ) )",
+               subentryObjectClass,
                offsetof(struct slap_internal_schema, si_oc_subschema) },
+       { "collectiveAttributes", "( 2.5.20.2 "
+                       "NAME 'collectiveAttributes' "
+                       "AUXILIARY )",
+               subentryObjectClass,
+               offsetof(struct slap_internal_schema, si_oc_collectiveAttributes) },
+       { "dynamicObject", "( 1.3.6.1.4.1.1466.101.119.2 "
+                       "NAME 'dynamicObject' "
+                       "DESC 'RFC2589: Dynamic Object' "
+                       "SUP top AUXILIARY )",
+               dynamicObjectClass,
+               offsetof(struct slap_internal_schema, si_oc_dynamicObject) },
        { NULL, 0 }
 };
 
+static AttributeTypeSchemaCheckFN rootDseAttribute;
+static AttributeTypeSchemaCheckFN aliasAttribute;
+static AttributeTypeSchemaCheckFN referralAttribute;
+static AttributeTypeSchemaCheckFN subentryAttribute;
+static AttributeTypeSchemaCheckFN dynamicAttribute;
+
 static struct slap_schema_ad_map {
        char *ssam_name;
        char *ssam_defn;
@@ -154,6 +202,8 @@ static struct slap_schema_ad_map {
                        NULL,
                objectClassMatch, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_objectClass) },
+
+       /* user entry operational attributes */
        { "structuralObjectClass", "( 2.5.21.9 NAME 'structuralObjectClass' "
                        "DESC 'X.500(93): structural object class of entry' "
                        "EQUALITY objectIdentifierMatch "
@@ -162,8 +212,6 @@ static struct slap_schema_ad_map {
                NULL,
                structuralObjectClassMatch, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_structuralObjectClass) },
-
-       /* user entry operational attributes */
        { "createTimestamp", "( 2.5.18.1 NAME 'createTimestamp' "
                        "DESC 'RFC2252: time which object was created' "
                        "EQUALITY generalizedTimeMatch "
@@ -208,6 +256,19 @@ static struct slap_schema_ad_map {
                        "SINGLE-VALUE USAGE directoryOperation )",
                NULL, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_subschemaSubentry) },
+       { "collectiveAttributeSubentry", "( 2.5.18.12 "
+                       "NAME 'collectiveAttributeSubentry' "
+                       "EQUALITY distinguishedNameMatch "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 "
+                       "USAGE directoryOperation NO-USER-MODIFICATION )",
+               NULL, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_collectiveSubentry) },
+       { "collectiveExclusions", "( 2.5.18.7 NAME 'collectiveExclusions' "
+                       "EQUALITY objectIdentifierMatch "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.38 "
+                       "USAGE directoryOperation )",
+               NULL, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_collectiveExclusions) },
 
        { "entryUUID", "( 1.3.6.1.4.1.4203.666.1.6 NAME 'entryUUID' "   
                        "DESC 'LCUP/LDUP: universally unique identifier' "
@@ -225,35 +286,40 @@ static struct slap_schema_ad_map {
                offsetof(struct slap_internal_schema, si_ad_entryCSN) },
 
        /* root DSE attributes */
+       { "altServer", "( 1.3.6.1.4.1.1466.101.120.6 NAME 'altServer' "
+                       "DESC 'RFC2252: alternative servers' "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 USAGE dSAOperation )",
+               rootDseAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_altServer) },
        { "namingContexts", "( 1.3.6.1.4.1.1466.101.120.5 "
                        "NAME 'namingContexts' "
                        "DESC 'RFC2252: naming contexts' "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 USAGE dSAOperation )",
-               NULL, NULL, NULL, NULL,
+               rootDseAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_namingContexts) },
        { "supportedControl", "( 1.3.6.1.4.1.1466.101.120.13 "
                        "NAME 'supportedControl' "
                   "DESC 'RFC2252: supported controls' "
                   "SYNTAX 1.3.6.1.4.1.1466.115.121.1.38 USAGE dSAOperation )",
-               NULL, NULL, NULL, NULL,
+               rootDseAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_supportedControl) },
        { "supportedExtension", "( 1.3.6.1.4.1.1466.101.120.7 "
                        "NAME 'supportedExtension' "
                        "DESC 'RFC2252: supported extended operations' "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.38 USAGE dSAOperation )",
-               NULL, NULL, NULL, NULL,
+               rootDseAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_supportedExtension) },
        { "supportedLDAPVersion", "( 1.3.6.1.4.1.1466.101.120.15 "
                        "NAME 'supportedLDAPVersion' "
                        "DESC 'RFC2252: supported LDAP versions' "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 USAGE dSAOperation )",
-               NULL, NULL, NULL, NULL,
+               rootDseAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_supportedLDAPVersion) },
        { "supportedSASLMechanisms", "( 1.3.6.1.4.1.1466.101.120.14 "
                        "NAME 'supportedSASLMechanisms' "
                        "DESC 'RFC2252: supported SASL mechanisms'"
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 USAGE dSAOperation )",
-               NULL, NULL, NULL, NULL,
+               rootDseAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_supportedSASLMechanisms) },
        { "supportedFeatures", "( 1.3.6.1.4.1.4203.1.3.5 "
                        "NAME 'supportedFeatures' "
@@ -261,34 +327,89 @@ static struct slap_schema_ad_map {
                        "EQUALITY objectIdentifierMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.38 "
                        "USAGE dSAOperation )",
-               NULL, NULL, NULL, NULL,
+               rootDseAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_supportedFeatures) },
+       { "vendorName", "( 1.3.6.1.1.4 NAME 'vendorName' "
+                       "DESC 'RFC3045: name of implementation vendor' "
+                       "EQUALITY 1.3.6.1.4.1.1466.109.114.1 "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 "
+                       "SINGLE-VALUE NO-USER-MODIFICATION "
+                       "USAGE dSAOperation )",
+               rootDseAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_vendorName) },
+       { "vendorVersion", "( 1.3.6.1.1.5 NAME 'vendorVersion' "
+                       "DESC 'RFC3045: version of implementation' "
+                       "EQUALITY 1.3.6.1.4.1.1466.109.114.1 "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 "
+                       "SINGLE-VALUE NO-USER-MODIFICATION "
+                       "USAGE dSAOperation )",
+               rootDseAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_vendorVersion) },
+
+       /* subentry attributes */
+       { "administrativeRole", "( 2.5.18.5 NAME 'administrativeRole' "
+                       "EQUALITY objectIdentifierMatch "
+                       "USAGE directoryOperation "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.38 )",
+               NULL, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_administrativeRole) },
+       { "subtreeSpecification", "( 2.5.18.6 NAME 'subtreeSpecification' "
+                       "SINGLE-VALUE "
+                       "USAGE directoryOperation "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.45 )",
+               subentryAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_subtreeSpecification) },
 
        /* subschema subentry attributes */
+       { "ditStructureRules", "( 2.5.21.1 NAME 'dITStructureRules' "
+                       "DESC 'RFC2252: DIT structure rules' "
+                       "EQUALITY integerFirstComponentMatch "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.17 "
+                       "USAGE directoryOperation ) ",
+               subentryAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_ditStructureRules) },
+       { "ditContentRules", "( 2.5.21.2 NAME 'dITContentRules' "
+                       "DESC 'RFC2252: DIT content rules' "
+                       "EQUALITY objectIdentifierFirstComponentMatch "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.16 USAGE directoryOperation )",
+               subentryAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_ditContentRules) },
        { "matchingRules", "( 2.5.21.4 NAME 'matchingRules' "
                        "DESC 'RFC2252: matching rules' "
                        "EQUALITY objectIdentifierFirstComponentMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.30 USAGE directoryOperation )",
-               NULL, NULL, NULL, NULL,
+               subentryAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_matchingRules) },
        { "attributeTypes", "( 2.5.21.5 NAME 'attributeTypes' "
                        "DESC 'RFC2252: attribute types' "
                        "EQUALITY objectIdentifierFirstComponentMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.3 USAGE directoryOperation )",
-               NULL, NULL, NULL, NULL,
+               subentryAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_attributeTypes) },
        { "objectClasses", "( 2.5.21.6 NAME 'objectClasses' "
                        "DESC 'RFC2252: object classes' "
                        "EQUALITY objectIdentifierFirstComponentMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.37 USAGE directoryOperation )",
-               NULL, NULL, NULL, NULL,
+               subentryAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_objectClasses) },
+       { "nameForms", "( 2.5.21.7 NAME 'nameForms' "
+                       "DESC 'RFC2252: name forms ' "
+                       "EQUALITY objectIdentifierFirstComponentMatch "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.35 USAGE directoryOperation )",
+               subentryAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_nameForms) },
+       { "matchingRuleUse", "( 2.5.21.8 NAME 'matchingRuleUse' "
+                       "DESC 'RFC2252: matching rule uses' "
+                       "EQUALITY objectIdentifierFirstComponentMatch "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.31 USAGE directoryOperation )",
+               subentryAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_matchingRuleUse) },
 
        { "ldapSyntaxes", "( 1.3.6.1.4.1.1466.101.120.16 NAME 'ldapSyntaxes' "
                        "DESC 'RFC2252: LDAP syntaxes' "
                        "EQUALITY objectIdentifierFirstComponentMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.54 USAGE directoryOperation )",
-               NULL, NULL, NULL, NULL,
+               subentryAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_ldapSyntaxes) },
 
        /* knowledge information */
@@ -297,14 +418,14 @@ static struct slap_schema_ad_map {
                        "DESC 'RFC2256: name of aliased object' "
                        "EQUALITY distinguishedNameMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 SINGLE-VALUE )",
-               NULL, NULL, NULL, NULL,
+               aliasAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_aliasedObjectName) },
        { "ref", "( 2.16.840.1.113730.3.1.34 NAME 'ref' "
                        "DESC 'namedref: subordinate referral URL' "
                        "EQUALITY caseExactMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 "
                        "USAGE distributedOperation )",
-               NULL, NULL, NULL, NULL,
+               referralAttribute, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_ref) },
 
        /* access control internals */
@@ -333,7 +454,27 @@ static struct slap_schema_ad_map {
                offsetof(struct slap_internal_schema, si_ad_aci) },
 #endif
 
-       /* userApplication attributes */
+       { "entryTtl", "( 1.3.6.1.4.1.1466.101.119.3 NAME 'entryTtl' "
+                       "DESC 'RFC2589: entry time-to-live' "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE "
+                       "NO-USER-MODIFICATION USAGE dSAOperation )",
+               dynamicAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_entryTtl) },
+       { "dynamicSubtrees", "( 1.3.6.1.4.1.1466.101.119.4 "
+                       "NAME 'dynamicSubtrees' "
+                       "DESC 'RFC2589: dynamic subtrees' "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 NO-USER-MODIFICATION "
+                       "USAGE dSAOperation )",
+               rootDseAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_dynamicSubtrees) },
+
+       /* userApplication attributes (which system schema depends upon) */
+       { "distinguishedName", "( 2.5.4.49 NAME 'distinguishedName' "
+                       "DESC 'RFC2256: common supertype of DN attributes' "
+                       "EQUALITY distinguishedNameMatch "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 )",
+               NULL, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_distinguishedName) },
        { "name", "( 2.5.4.41 NAME 'name' "
                        "DESC 'RFC2256: common supertype of name attributes' "
                        "EQUALITY caseIgnoreMatch "
@@ -346,7 +487,6 @@ static struct slap_schema_ad_map {
                        "SUP name )",
                NULL, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_cn) },
-
        { "userPassword", "( 2.5.4.35 NAME 'userPassword' "
                        "DESC 'RFC2256/2307: password of user' "
                        "EQUALITY octetStringMatch "
@@ -355,9 +495,21 @@ static struct slap_schema_ad_map {
                offsetof(struct slap_internal_schema, si_ad_userPassword) },
 
 #ifdef SLAPD_AUTHPASSWD
-       { "authPassword", NULL,
+       { "authPassword", "( 1.3.6.1.4.1.4203.1.3.4 "
+                       "NAME 'authPassword' "
+                       "DESC 'RFC3112: authentication password attribute' "
+                       "EQUALITY 1.3.6.1.4.1.4203.1.2.2 "
+                       "SYNTAX 1.3.6.1.4.1.4203.1.1.2 )",
                NULL, NULL, NULL, NULL,
                offsetof(struct slap_internal_schema, si_ad_authPassword) },
+       { "supportedAuthPasswordSchemes", "( 1.3.6.1.4.1.4203.1.3.3 "
+                       "NAME 'supportedAuthPasswordSchemes' "
+                       "DESC 'RFC3112: supported authPassword schemes' "
+                       "EQUALITY caseExactIA5Match "
+                       "SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{32} "
+                       "USAGE dSAOperation )",
+               subschemaAttribute, NULL, NULL, NULL,
+               offsetof(struct slap_internal_schema, si_ad_authPassword) },
 #endif
 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
        { "krbName", NULL,
@@ -441,6 +593,41 @@ slap_schema_load( void )
                        ldap_memfree( at );
                }
        }
+
+       for( i=0; oc_map[i].ssom_name; i++ ) {
+               if( oc_map[i].ssom_defn != NULL ) {
+                       LDAPObjectClass *oc;
+                       int             code;
+                       const char      *err;
+
+                       oc = ldap_str2objectclass( oc_map[i].ssom_defn, &code, &err,
+                               LDAP_SCHEMA_ALLOW_ALL );
+                       if ( !oc ) {
+                               fprintf( stderr, "slap_schema_load: "
+                                       "%s: %s before %s\n",
+                                       oc_map[i].ssom_name, ldap_scherr2str(code), err );
+                               return code;
+                       }
+
+                       if ( oc->oc_oid == NULL ) {
+                               fprintf( stderr, "slap_schema_load: "
+                                       "%s: objectclass has no OID\n",
+                                       oc_map[i].ssom_name );
+                               return LDAP_OTHER;
+                       }
+
+                       code = oc_add(oc,&err);
+                       if ( code ) {
+                               fprintf( stderr, "slap_schema_load: "
+                                       "%s: %s: \"%s\"\n",
+                                       oc_map[i].ssom_name, scherr2str(code), err);
+                               return code;
+                       }
+
+                       ldap_memfree(oc);
+               }
+       }
+
        return LDAP_SUCCESS;
 }
 
@@ -455,6 +642,8 @@ slap_schema_check( void )
                Syntax ** synp = (Syntax **)
                        &(((char *) &slap_schema)[syn_map[i].sssm_offset]);
 
+               assert( *synp == NULL );
+
                *synp = syn_find( syn_map[i].sssm_name );
 
                if( *synp == NULL ) {
@@ -469,6 +658,8 @@ slap_schema_check( void )
                MatchingRule ** mrp = (MatchingRule **)
                        &(((char *) &slap_schema)[mr_map[i].ssmm_offset]);
 
+               assert( *mrp == NULL );
+
                *mrp = mr_find( mr_map[i].ssmm_name );
 
                if( *mrp == NULL ) {
@@ -494,7 +685,7 @@ slap_schema_check( void )
                AttributeDescription ** adp = (AttributeDescription **)
                        &(((char *) &slap_schema)[ad_map[i].ssam_offset]);
 
-               *adp = NULL;
+               assert( *adp == NULL );
 
                rc = slap_str2ad( ad_map[i].ssam_name, adp, &text );
 
@@ -515,6 +706,8 @@ slap_schema_check( void )
                ObjectClass ** ocp = (ObjectClass **)
                        &(((char *) &slap_schema)[oc_map[i].ssom_offset]);
 
+               assert( *ocp == NULL );
+
                *ocp = oc_find( oc_map[i].ssom_name );
 
                if( *ocp == NULL ) {
@@ -528,3 +721,232 @@ slap_schema_check( void )
        ++schema_init_done;
        return LDAP_SUCCESS;
 }
+
+static int rootDseObjectClass (
+       Backend *be,
+       Entry *e,
+       ObjectClass *oc,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( e->e_nname.bv_len ) {
+               snprintf( textbuf, textlen,
+                       "objectClass \"%s\" only allowed in the root DSE",
+                       oc->soc_oid );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       /* we should not be called for the root DSE */
+       assert( 0 );
+       return LDAP_SUCCESS;
+}
+
+static int aliasObjectClass (
+       Backend *be,
+       Entry *e,
+       ObjectClass *oc,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_ALIASES(be) ) {
+               snprintf( textbuf, textlen,
+                       "objectClass \"%s\" not supported in context",
+                       oc->soc_oid );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}
+
+static int referralObjectClass (
+       Backend *be,
+       Entry *e,
+       ObjectClass *oc,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_REFERRALS(be) ) {
+               snprintf( textbuf, textlen,
+                       "objectClass \"%s\" not supported in context",
+                       oc->soc_oid );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}
+
+static int subentryObjectClass (
+       Backend *be,
+       Entry *e,
+       ObjectClass *oc,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_SUBENTRIES(be) ) {
+               snprintf( textbuf, textlen,
+                       "objectClass \"%s\" not supported in context",
+                       oc->soc_oid );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( oc != slap_schema.si_oc_subentry && !is_entry_subentry( e ) ) {
+               snprintf( textbuf, textlen,
+                       "objectClass \"%s\" only allowed in subentries",
+                       oc->soc_oid );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}
+
+static int dynamicObjectClass (
+       Backend *be,
+       Entry *e,
+       ObjectClass *oc,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_DYNAMIC(be) ) {
+               snprintf( textbuf, textlen,
+                       "objectClass \"%s\" not supported in context",
+                       oc->soc_oid );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}
+
+static int rootDseAttribute (
+       Backend *be,
+       Entry *e,
+       Attribute *attr,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( e->e_nname.bv_len ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" only allowed in the root DSE",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       /* we should not be called for the root DSE */
+       assert( 0 );
+       return LDAP_SUCCESS;
+}
+
+static int aliasAttribute (
+       Backend *be,
+       Entry *e,
+       Attribute *attr,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_ALIASES(be) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" not supported in context",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( !is_entry_alias( e ) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" only allowed in the alias",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}
+
+static int referralAttribute (
+       Backend *be,
+       Entry *e,
+       Attribute *attr,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_REFERRALS(be) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" not supported in context",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( !is_entry_referral( e ) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" only allowed in the referral",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}
+
+static int subentryAttribute (
+       Backend *be,
+       Entry *e,
+       Attribute *attr,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_SUBENTRIES(be) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" not supported in context",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( !is_entry_subentry( e ) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" only allowed in the subentry",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}
+
+static int dynamicAttribute (
+       Backend *be,
+       Entry *e,
+       Attribute *attr,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       *text = textbuf;
+
+       if( !SLAP_DYNAMIC(be) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" not supported in context",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( !is_entry_dynamicObject( e ) ) {
+               snprintf( textbuf, textlen,
+                       "attribute \"%s\" only allowed in dynamic object",
+                       attr->a_desc->ad_cname.bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return LDAP_SUCCESS;
+}