]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/schema_check.c
ITS#5469
[openldap] / servers / slapd / schema_check.c
index 34cd46f15484124e49c28528faaa369cb1b2d7ee..2c46ede1559f3984cc9e97bf6cc89e462010fcdf 100644 (file)
@@ -1,8 +1,17 @@
 /* schema_check.c - routines to enforce schema definitions */
 /* $OpenLDAP$ */
-/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2008 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
  */
 
 #include "portable.h"
 #include <ac/socket.h>
 
 #include "slap.h"
-#include "ldap_pvt.h"
 
-static char *  oc_check_required(Entry *e, struct berval *ocname);
+static char * oc_check_required(
+       Entry *e,
+       ObjectClass *oc,
+       struct berval *ocname );
 
+static int entry_naming_check(
+       Entry *e,
+       int manage,
+       const char** text,
+       char *textbuf, size_t textlen );
 /*
  * entry_schema_check - check that entry e conforms to the schema required
  * by its object class(es).
@@ -27,125 +43,456 @@ static char *     oc_check_required(Entry *e, struct berval *ocname);
 
 int
 entry_schema_check( 
-       Entry *e, Attribute *oldattrs, const char** text )
+       Operation *op,
+       Entry *e,
+       Attribute *oldattrs,
+       int manage,
+       const char** text,
+       char *textbuf, size_t textlen )
 {
-       Attribute       *a, *aoc;
-       ObjectClass *oc;
-       int             i;
-       int             ret;
-       AttributeDescription *ad_objectClass = slap_schema.si_ad_objectClass;
+       Attribute       *a, *asc, *aoc;
+       ObjectClass *sc, *oc;
+       AttributeType *at;
+       ContentRule *cr;
+       int     rc, i;
+       struct berval nsc;
+       AttributeDescription *ad_structuralObjectClass
+               = slap_schema.si_ad_structuralObjectClass;
+       AttributeDescription *ad_objectClass
+               = slap_schema.si_ad_objectClass;
        int extensible = 0;
+       int subentry = is_entry_subentry( e );
+       int collectiveSubentry = 0;
+
+       if ( SLAP_NO_SCHEMA_CHECK( op->o_bd )) {
+               return LDAP_SUCCESS;
+       }
+
+       if ( get_no_schema_check( op ) ) {
+               return LDAP_SUCCESS;
+       }
+
+       if( subentry ) {
+               collectiveSubentry = is_entry_collectiveAttributeSubentry( e );
+       }
+
+       *text = textbuf;
+
+       /* misc attribute checks */
+       for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
+               const char *type = a->a_desc->ad_cname.bv_val;
+
+               /* there should be at least one value */
+               assert( a->a_vals != NULL );
+               assert( a->a_vals[0].bv_val != NULL ); 
+
+               if( a->a_desc->ad_type->sat_check ) {
+                       int rc = (a->a_desc->ad_type->sat_check)(
+                               op->o_bd, e, a, text, textbuf, textlen );
+                       if( rc != LDAP_SUCCESS ) {
+                               return rc;
+                       }
+               }
+
+               if( !collectiveSubentry && is_at_collective( a->a_desc->ad_type ) ) {
+                       snprintf( textbuf, textlen,
+                               "'%s' can only appear in collectiveAttributeSubentry",
+                               type );
+                       return LDAP_OBJECT_CLASS_VIOLATION;
+               }
+
+               /* if single value type, check for multiple values */
+               if( is_at_single_value( a->a_desc->ad_type ) &&
+                       a->a_vals[1].bv_val != NULL )
+               {
+                       snprintf( textbuf, textlen, 
+                               "attribute '%s' cannot have multiple values",
+                               type );
+
+                       Debug( LDAP_DEBUG_ANY,
+                           "Entry (%s), %s\n",
+                           e->e_dn, textbuf, 0 );
+
+                       return LDAP_CONSTRAINT_VIOLATION;
+               }
+       }
 
-       if( !global_schemacheck ) return LDAP_SUCCESS;
+       /* find the structural object class attribute */
+       asc = attr_find( e->e_attrs, ad_structuralObjectClass );
+       if ( asc == NULL ) {
+               Debug( LDAP_DEBUG_ANY,
+                       "No structuralObjectClass for entry (%s)\n",
+                   e->e_dn, 0, 0 );
+
+               *text = "no structuralObjectClass operational attribute";
+               return LDAP_OTHER;
+       }
+
+       assert( asc->a_vals != NULL );
+       assert( asc->a_vals[0].bv_val != NULL );
+       assert( asc->a_vals[1].bv_val == NULL );
+
+       sc = oc_bvfind( &asc->a_vals[0] );
+       if( sc == NULL ) {
+               snprintf( textbuf, textlen, 
+                       "unrecognized structuralObjectClass '%s'",
+                       asc->a_vals[0].bv_val );
+
+               Debug( LDAP_DEBUG_ANY,
+                       "entry_check_schema(%s): %s\n",
+                       e->e_dn, textbuf, 0 );
+
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( sc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
+               snprintf( textbuf, textlen, 
+                       "structuralObjectClass '%s' is not STRUCTURAL",
+                       asc->a_vals[0].bv_val );
+
+               Debug( LDAP_DEBUG_ANY,
+                       "entry_check_schema(%s): %s\n",
+                       e->e_dn, textbuf, 0 );
+
+               return LDAP_OTHER;
+       }
+
+       if( !manage && sc->soc_obsolete ) {
+               snprintf( textbuf, textlen, 
+                       "structuralObjectClass '%s' is OBSOLETE",
+                       asc->a_vals[0].bv_val );
+
+               Debug( LDAP_DEBUG_ANY,
+                       "entry_check_schema(%s): %s\n",
+                       e->e_dn, textbuf, 0 );
 
-       /* find the object class attribute - could error out here */
-       if ( (aoc = attr_find( e->e_attrs, ad_objectClass )) == NULL ) {
-#ifdef NEW_LOGGING
-            LDAP_LOG(( "schema", LDAP_LEVEL_INFO,
-                       "entry_schema_check: No object class for entry (%s).\n", e->e_dn ));
-#else
-               Debug( LDAP_DEBUG_ANY, "No object class for entry (%s)\n",
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       /* find the object class attribute */
+       aoc = attr_find( e->e_attrs, ad_objectClass );
+       if ( aoc == NULL ) {
+               Debug( LDAP_DEBUG_ANY, "No objectClass for entry (%s)\n",
                    e->e_dn, 0, 0 );
-#endif
 
                *text = "no objectClass attribute";
                return LDAP_OBJECT_CLASS_VIOLATION;
        }
 
+       assert( aoc->a_vals != NULL );
+       assert( aoc->a_vals[0].bv_val != NULL );
+
+       rc = structural_class( aoc->a_vals, &nsc, &oc, text, textbuf, textlen );
+       if( rc != LDAP_SUCCESS ) {
+               return rc;
+       }
+
+       *text = textbuf;
+
+       if ( oc == NULL ) {
+               snprintf( textbuf, textlen, 
+                       "unrecognized objectClass '%s'",
+                       aoc->a_vals[0].bv_val );
+               return LDAP_OBJECT_CLASS_VIOLATION;
+
+       } else if ( sc != slap_schema.si_oc_glue && sc != oc ) {
+               snprintf( textbuf, textlen, 
+                       "structural object class modification "
+                       "from '%s' to '%s' not allowed",
+                       asc->a_vals[0].bv_val, nsc.bv_val );
+               return LDAP_NO_OBJECT_CLASS_MODS;
+       } else if ( sc == slap_schema.si_oc_glue ) {
+               sc = oc;
+       }
+
+       /* naming check */
+       if ( !is_entry_objectclass ( e, slap_schema.si_oc_glue, 0 ) ) {
+               rc = entry_naming_check( e, manage, text, textbuf, textlen );
+               if( rc != LDAP_SUCCESS ) {
+                       return rc;
+               }
+       } else {
+               /* Glue Entry */
+       }
+
+       /* find the content rule for the structural class */
+       cr = cr_find( sc->soc_oid );
+
+       /* the cr must be same as the structural class */
+       assert( !cr || !strcmp( cr->scr_oid, sc->soc_oid ) );
+
+       /* check that the entry has required attrs of the content rule */
+       if( cr ) {
+               if( !manage && cr->scr_obsolete ) {
+                       snprintf( textbuf, textlen, 
+                               "content rule '%s' is obsolete",
+                               ldap_contentrule2name( &cr->scr_crule ));
+
+                       Debug( LDAP_DEBUG_ANY,
+                               "Entry (%s): %s\n",
+                               e->e_dn, textbuf, 0 );
+
+                       return LDAP_OBJECT_CLASS_VIOLATION;
+               }
+
+               if( cr->scr_required ) for( i=0; cr->scr_required[i]; i++ ) {
+                       at = cr->scr_required[i];
+
+                       for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
+                               if( a->a_desc->ad_type == at ) {
+                                       break;
+                               }
+                       }
+
+                       /* not there => schema violation */
+                       if ( a == NULL ) {
+                               snprintf( textbuf, textlen, 
+                                       "content rule '%s' requires attribute '%s'",
+                                       ldap_contentrule2name( &cr->scr_crule ),
+                                       at->sat_cname.bv_val );
+
+                               Debug( LDAP_DEBUG_ANY,
+                                       "Entry (%s): %s\n",
+                                       e->e_dn, textbuf, 0 );
+
+                               return LDAP_OBJECT_CLASS_VIOLATION;
+                       }
+               }
+
+               if( cr->scr_precluded ) for( i=0; cr->scr_precluded[i]; i++ ) {
+                       at = cr->scr_precluded[i];
+
+                       for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
+                               if( a->a_desc->ad_type == at ) {
+                                       break;
+                               }
+                       }
+
+                       /* there => schema violation */
+                       if ( a != NULL ) {
+                               snprintf( textbuf, textlen, 
+                                       "content rule '%s' precluded attribute '%s'",
+                                       ldap_contentrule2name( &cr->scr_crule ),
+                                       at->sat_cname.bv_val );
+
+                               Debug( LDAP_DEBUG_ANY,
+                                       "Entry (%s): %s\n",
+                                       e->e_dn, textbuf, 0 );
+
+                               return LDAP_OBJECT_CLASS_VIOLATION;
+                       }
+               }
+       }
+
        /* check that the entry has required attrs for each oc */
-       for ( i = 0; aoc->a_vals[i] != NULL; i++ ) {
-               if ( (oc = oc_find( aoc->a_vals[i]->bv_val )) == NULL ) {
-#ifdef NEW_LOGGING
-                    LDAP_LOG(( "schema", LDAP_LEVEL_INFO,
-                               "entry_schema_check: dn (%s), objectclass \"%s\" not recognized\n",
-                               e->e_dn, aoc->a_vals[i]->bv_val ));
-#else
+       for ( i = 0; aoc->a_vals[i].bv_val != NULL; i++ ) {
+               if ( (oc = oc_bvfind( &aoc->a_vals[i] )) == NULL ) {
+                       snprintf( textbuf, textlen, 
+                               "unrecognized objectClass '%s'",
+                               aoc->a_vals[i].bv_val );
+
+                       Debug( LDAP_DEBUG_ANY,
+                               "entry_check_schema(%s): %s\n",
+                               e->e_dn, textbuf, 0 );
+
+                       return LDAP_OBJECT_CLASS_VIOLATION;
+               }
+
+               if ( !manage && oc->soc_obsolete ) {
+                       /* disallow obsolete classes */
+                       snprintf( textbuf, textlen, 
+                               "objectClass '%s' is OBSOLETE",
+                               aoc->a_vals[i].bv_val );
+
                        Debug( LDAP_DEBUG_ANY,
-                               "entry_check_schema(%s): objectclass \"%s\" not recognized\n",
-                               e->e_dn, aoc->a_vals[i]->bv_val, 0 );
-#endif
+                               "entry_check_schema(%s): %s\n",
+                               e->e_dn, textbuf, 0 );
 
-                       *text = "unrecognized object class";
                        return LDAP_OBJECT_CLASS_VIOLATION;
+               }
+
+               if ( oc->soc_check ) {
+                       int rc = (oc->soc_check)( op->o_bd, e, oc,
+                               text, textbuf, textlen );
+                       if( rc != LDAP_SUCCESS ) {
+                               return rc;
+                       }
+               }
+
+               if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT ) {
+                       /* object class is abstract */
+                       if ( oc != slap_schema.si_oc_top &&
+                               !is_object_subclass( oc, sc ))
+                       {
+                               int j;
+                               ObjectClass *xc = NULL;
+                               for( j=0; aoc->a_vals[j].bv_val; j++ ) {
+                                       if( i != j ) {
+                                               xc = oc_bvfind( &aoc->a_vals[j] );
+                                               if( xc == NULL ) {
+                                                       snprintf( textbuf, textlen, 
+                                                               "unrecognized objectClass '%s'",
+                                                               aoc->a_vals[j].bv_val );
+
+                                                       Debug( LDAP_DEBUG_ANY,
+                                                               "entry_check_schema(%s): %s\n",
+                                                               e->e_dn, textbuf, 0 );
+
+                                                       return LDAP_OBJECT_CLASS_VIOLATION;
+                                               }
+
+                                               /* since we previous check against the
+                                                * structural object of this entry, the
+                                                * abstract class must be a (direct or indirect)
+                                                * superclass of one of the auxiliary classes of
+                                                * the entry.
+                                                */
+                                               if ( xc->soc_kind == LDAP_SCHEMA_AUXILIARY &&
+                                                       is_object_subclass( oc, xc ) )
+                                               {
+                                                       xc = NULL;
+                                                       break;
+                                               }
+                                       }
+                               }
+
+                               if( xc != NULL ) {
+                                       snprintf( textbuf, textlen, "instantiation of "
+                                               "abstract objectClass '%s' not allowed",
+                                               aoc->a_vals[i].bv_val );
 
-               } else {
-                       char *s = oc_check_required( e, aoc->a_vals[i] );
+                                       Debug( LDAP_DEBUG_ANY,
+                                               "entry_check_schema(%s): %s\n",
+                                               e->e_dn, textbuf, 0 );
 
+                                       return LDAP_OBJECT_CLASS_VIOLATION;
+                               }
+                       }
+
+               } else if ( oc->soc_kind != LDAP_SCHEMA_STRUCTURAL || oc == sc ) {
+                       char *s;
+
+                       if( oc->soc_kind == LDAP_SCHEMA_AUXILIARY ) {
+                               int k;
+
+                               if( cr ) {
+                                       int j;
+
+                                       k = -1;
+                                       if( cr->scr_auxiliaries ) {
+                                               for( j = 0; cr->scr_auxiliaries[j]; j++ ) {
+                                                       if( cr->scr_auxiliaries[j] == oc ) {
+                                                               k = 0;
+                                                               break;
+                                                       }
+                                               }
+                                       }
+                               } else if ( global_disallows & SLAP_DISALLOW_AUX_WO_CR ) {
+                                       k = -1;
+                               } else {
+                                       k = 0;  
+                               }
+
+                               if( k == -1 ) {
+                                       snprintf( textbuf, textlen, 
+                                               "content rule '%s' does not allow class '%s'",
+                                               ldap_contentrule2name( &cr->scr_crule ),
+                                               oc->soc_cname.bv_val );
+
+                                       Debug( LDAP_DEBUG_ANY,
+                                               "Entry (%s): %s\n",
+                                               e->e_dn, textbuf, 0 );
+
+                                       return LDAP_OBJECT_CLASS_VIOLATION;
+                               }
+                       }
+
+                       s = oc_check_required( e, oc, &aoc->a_vals[i] );
                        if (s != NULL) {
-#ifdef NEW_LOGGING
-                            LDAP_LOG(( "schema", LDAP_LEVEL_INFO,
-                                       "entry_schema_check: dn (%s) oc \"%s\" requires att \"%s\"\n",
-                                       e->e_dn, aoc->a_vals[i]->bv_val, s ));
-#else
+                               snprintf( textbuf, textlen, 
+                                       "object class '%s' requires attribute '%s'",
+                                       aoc->a_vals[i].bv_val, s );
+
                                Debug( LDAP_DEBUG_ANY,
-                                       "Entry (%s), oc \"%s\" requires attr \"%s\"\n",
-                                       e->e_dn, aoc->a_vals[i]->bv_val, s );
-#endif
+                                       "Entry (%s): %s\n",
+                                       e->e_dn, textbuf, 0 );
 
-                               *text = "missing required attribute";
                                return LDAP_OBJECT_CLASS_VIOLATION;
                        }
 
                        if( oc == slap_schema.si_oc_extensibleObject ) {
                                extensible=1;
                        }
-
                }
        }
 
        if( extensible ) {
+               *text = NULL;
                return LDAP_SUCCESS;
        }
 
-       /* optimistic */
-       ret = LDAP_SUCCESS;
-
        /* check that each attr in the entry is allowed by some oc */
        for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
-               ret = oc_check_allowed( a->a_desc->ad_type, aoc->a_vals );
-               if ( ret != 0 ) {
-                       char *type = a->a_desc->ad_cname->bv_val;
-#ifdef NEW_LOGGING
-                        LDAP_LOG(( "schema", LDAP_LEVEL_INFO,
-                                   "entry_schema_check: Entry (%s) attr \"%s\" not allowed.\n",
-                                   e->e_dn, type ));
-#else
+               int ret;
+
+               ret = LDAP_OBJECT_CLASS_VIOLATION;
+
+               if( cr && cr->scr_required ) {
+                       for( i=0; cr->scr_required[i]; i++ ) {
+                               if( cr->scr_required[i] == a->a_desc->ad_type ) {
+                                       ret = LDAP_SUCCESS;
+                                       break;
+                               }
+                       }
+               }
+
+               if( ret != LDAP_SUCCESS && cr && cr->scr_allowed ) {
+                       for( i=0; cr->scr_allowed[i]; i++ ) {
+                               if( cr->scr_allowed[i] == a->a_desc->ad_type ) {
+                                       ret = LDAP_SUCCESS;
+                                       break;
+                               }
+                       }
+               }
+
+               if( ret != LDAP_SUCCESS ) 
+               {
+                       ret = oc_check_allowed( a->a_desc->ad_type, aoc->a_vals, sc );
+               }
+
+               if ( ret != LDAP_SUCCESS ) {
+                       char *type = a->a_desc->ad_cname.bv_val;
+
+                       snprintf( textbuf, textlen, 
+                               "attribute '%s' not allowed",
+                               type );
+
                        Debug( LDAP_DEBUG_ANY,
-                           "Entry (%s), attr \"%s\" not allowed\n",
-                           e->e_dn, type, 0 );
-#endif
+                           "Entry (%s), %s\n",
+                           e->e_dn, textbuf, 0 );
 
-                       *text = "attribute not allowed";
-                       break;
+                       return ret;
                }
        }
 
-       return( ret );
+       *text = NULL;
+       return LDAP_SUCCESS;
 }
 
 static char *
-oc_check_required( Entry *e, struct berval *ocname )
+oc_check_required(
+       Entry *e,
+       ObjectClass *oc,
+       struct berval *ocname )
 {
-       ObjectClass     *oc;
        AttributeType   *at;
        int             i;
        Attribute       *a;
 
-#ifdef NEW_LOGGING
-        LDAP_LOG(( "schema", LDAP_LEVEL_ENTRY,
-                   "oc_check_required: dn (%s), objectclass \"%s\"\n",
-                   e->e_dn, ocname->bv_val ));
-#else
        Debug( LDAP_DEBUG_TRACE,
-              "oc_check_required entry (%s), objectclass \"%s\"\n",
-              e->e_dn, ocname->bv_val, 0 );
-#endif
-
+               "oc_check_required entry (%s), objectClass \"%s\"\n",
+               e->e_dn, ocname->bv_val, 0 );
 
-       /* find global oc defn. it we don't know about it assume it's ok */
-       if ( (oc = oc_find( ocname->bv_val )) == NULL ) {
-               return NULL;
-       }
 
        /* check for empty oc_required */
        if(oc->soc_required == NULL) {
@@ -163,7 +510,7 @@ oc_check_required( Entry *e, struct berval *ocname )
                }
                /* not there => schema violation */
                if ( a == NULL ) {
-                       return at->sat_cname;
+                       return at->sat_cname.bv_val;
                }
        }
 
@@ -172,27 +519,20 @@ oc_check_required( Entry *e, struct berval *ocname )
 
 int oc_check_allowed(
        AttributeType *at,
-       struct berval **ocl )
+       BerVarray ocl,
+       ObjectClass *sc )
 {
-       ObjectClass     *oc;
        int             i, j;
 
-#ifdef NEW_LOGGING
-        LDAP_LOG(( "schema", LDAP_LEVEL_ENTRY,
-                   "oc_check_allowed: type \"%s\"\n", at->sat_cname ));
-#else
        Debug( LDAP_DEBUG_TRACE,
                "oc_check_allowed type \"%s\"\n",
-               at->sat_cname, 0, 0 );
-#endif
-
+               at->sat_cname.bv_val, 0, 0 );
 
-       /* always allow objectclass attribute */
-       if ( strcasecmp( at->sat_cname, "objectclass" ) == 0 ) {
+       /* always allow objectClass attribute */
+       if ( strcasecmp( at->sat_cname.bv_val, "objectClass" ) == 0 ) {
                return LDAP_SUCCESS;
        }
 
-
        /*
         * All operational attributions are allowed by schema rules.
         */
@@ -200,10 +540,34 @@ int oc_check_allowed(
                return LDAP_SUCCESS;
        }
 
+       /* check to see if its allowed by the structuralObjectClass */
+       if( sc ) {
+               /* does it require the type? */
+               for ( j = 0; sc->soc_required != NULL && 
+                       sc->soc_required[j] != NULL; j++ )
+               {
+                       if( at == sc->soc_required[j] ) {
+                               return LDAP_SUCCESS;
+                       }
+               }
+
+               /* does it allow the type? */
+               for ( j = 0; sc->soc_allowed != NULL && 
+                       sc->soc_allowed[j] != NULL; j++ )
+               {
+                       if( at == sc->soc_allowed[j] ) {
+                               return LDAP_SUCCESS;
+                       }
+               }
+       }
+
        /* check that the type appears as req or opt in at least one oc */
-       for ( i = 0; ocl[i] != NULL; i++ ) {
+       for ( i = 0; ocl[i].bv_val != NULL; i++ ) {
                /* if we know about the oc */
-               if ( (oc = oc_find( ocl[i]->bv_val )) != NULL ) {
+               ObjectClass     *oc = oc_bvfind( &ocl[i] );
+               if ( oc != NULL && oc->soc_kind != LDAP_SCHEMA_ABSTRACT &&
+                       ( sc == NULL || oc->soc_kind == LDAP_SCHEMA_AUXILIARY ))
+               {
                        /* does it require the type? */
                        for ( j = 0; oc->soc_required != NULL && 
                                oc->soc_required[j] != NULL; j++ )
@@ -220,19 +584,282 @@ int oc_check_allowed(
                                        return LDAP_SUCCESS;
                                }
                        }
-                       /* maybe the next oc allows it */
-
-#ifdef OC_UNDEFINED_IMPLES_EXTENSIBLE
-               /* we don't know about the oc. assume it allows it */
-               } else {
-                       if ( t != type )
-                               ldap_memfree( t );
-                       return LDAP_SUCCESS;
-#endif
                }
        }
 
-
        /* not allowed by any oc */
        return LDAP_OBJECT_CLASS_VIOLATION;
 }
+
+/*
+ * Determine the structural object class from a set of OIDs
+ */
+int structural_class(
+       BerVarray ocs,
+       struct berval *scbv,
+       ObjectClass **scp,
+       const char **text,
+       char *textbuf, size_t textlen )
+{
+       int i;
+       ObjectClass *oc;
+       ObjectClass *sc = NULL;
+       int scn = -1;
+
+       *text = "structural_class: internal error";
+       scbv->bv_len = 0;
+
+       for( i=0; ocs[i].bv_val; i++ ) {
+               oc = oc_bvfind( &ocs[i] );
+
+               if( oc == NULL ) {
+                       snprintf( textbuf, textlen,
+                               "unrecognized objectClass '%s'",
+                               ocs[i].bv_val );
+                       *text = textbuf;
+                       return LDAP_OBJECT_CLASS_VIOLATION;
+               }
+
+               if( oc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
+                       if( sc == NULL || is_object_subclass( sc, oc ) ) {
+                               sc = oc;
+                               scn = i;
+
+                       } else if ( !is_object_subclass( oc, sc ) ) {
+                               int j;
+                               ObjectClass *xc = NULL;
+
+                               /* find common superior */
+                               for( j=i+1; ocs[j].bv_val; j++ ) {
+                                       xc = oc_bvfind( &ocs[j] );
+
+                                       if( xc == NULL ) {
+                                               snprintf( textbuf, textlen,
+                                                       "unrecognized objectClass '%s'",
+                                                       ocs[j].bv_val );
+                                               *text = textbuf;
+                                               return LDAP_OBJECT_CLASS_VIOLATION;
+                                       }
+
+                                       if( xc->soc_kind != LDAP_SCHEMA_STRUCTURAL ) {
+                                               xc = NULL;
+                                               continue;
+                                       }
+
+                                       if( is_object_subclass( sc, xc ) &&
+                                               is_object_subclass( oc, xc ) )
+                                       {
+                                               /* found common subclass */
+                                               break;
+                                       }
+
+                                       xc = NULL;
+                               }
+
+                               if( xc == NULL ) {
+                                       /* no common subclass */
+                                       snprintf( textbuf, textlen,
+                                               "invalid structural object class chain (%s/%s)",
+                                               ocs[scn].bv_val, ocs[i].bv_val );
+                                       *text = textbuf;
+                                       return LDAP_OBJECT_CLASS_VIOLATION;
+                               }
+                       }
+               }
+       }
+
+       if( scp ) {
+               *scp = sc;
+       }
+
+       if( sc == NULL ) {
+               *text = "no structural object class provided";
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( scn < 0 ) {
+               *text = "invalid structural object class";
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       *scbv = ocs[scn];
+
+       if( scbv->bv_len == 0 ) {
+               *text = "invalid structural object class";
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       *text = NULL;
+
+       return LDAP_SUCCESS;
+}
+
+/*
+ * Return structural object class from list of modifications
+ */
+int mods_structural_class(
+       Modifications *mods,
+       struct berval *sc,
+       const char **text,
+       char *textbuf, size_t textlen )
+{
+       Modifications *ocmod = NULL;
+
+       for( ; mods != NULL; mods = mods->sml_next ) {
+               if( mods->sml_desc == slap_schema.si_ad_objectClass ) {
+                       if( ocmod != NULL ) {
+                               *text = "entry has multiple objectClass attributes";
+                               return LDAP_OBJECT_CLASS_VIOLATION;
+                       }
+                       ocmod = mods;
+               }
+       }
+
+       if( ocmod == NULL ) {
+               *text = "entry has no objectClass attribute";
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       if( ocmod->sml_values == NULL || ocmod->sml_values[0].bv_val == NULL ) {
+               *text = "objectClass attribute has no values";
+               return LDAP_OBJECT_CLASS_VIOLATION;
+       }
+
+       return structural_class( ocmod->sml_values, sc, NULL,
+               text, textbuf, textlen );
+}
+
+
+static int
+entry_naming_check(
+       Entry *e,
+       int manage,
+       const char** text,
+       char *textbuf, size_t textlen )
+{
+       /* naming check */
+       LDAPRDN         rdn = NULL;
+       const char      *p = NULL;
+       ber_len_t       cnt;
+       int             rc = LDAP_SUCCESS;
+
+       if ( BER_BVISEMPTY( &e->e_name )) {
+               return LDAP_SUCCESS;
+       }
+
+       /*
+        * Get attribute type(s) and attribute value(s) of our RDN
+        */
+       if ( ldap_bv2rdn( &e->e_name, &rdn, (char **)&p,
+               LDAP_DN_FORMAT_LDAP ) )
+       {
+               *text = "unrecongized attribute type(s) in RDN";
+               return LDAP_INVALID_DN_SYNTAX;
+       }
+
+       /* Check that each AVA of the RDN is present in the entry */
+       /* FIXME: Should also check that each AVA lists a distinct type */
+       for ( cnt = 0; rdn[cnt]; cnt++ ) {
+               LDAPAVA *ava = rdn[cnt];
+               AttributeDescription *desc = NULL;
+               Attribute *attr;
+               const char *errtext;
+
+               if( ava->la_flags & LDAP_AVA_BINARY ) {
+                       snprintf( textbuf, textlen, 
+                               "value of naming attribute '%s' in unsupported BER form",
+                               ava->la_attr.bv_val );
+                       rc = LDAP_NAMING_VIOLATION;
+               }
+
+               rc = slap_bv2ad( &ava->la_attr, &desc, &errtext );
+               if ( rc != LDAP_SUCCESS ) {
+                       snprintf( textbuf, textlen, "%s (in RDN)", errtext );
+                       break;
+               }
+
+               if( desc->ad_type->sat_usage ) {
+                       snprintf( textbuf, textlen, 
+                               "naming attribute '%s' is operational",
+                               ava->la_attr.bv_val );
+                       rc = LDAP_NAMING_VIOLATION;
+                       break;
+               }
+               if( desc->ad_type->sat_collective ) {
+                       snprintf( textbuf, textlen, 
+                               "naming attribute '%s' is collective",
+                               ava->la_attr.bv_val );
+                       rc = LDAP_NAMING_VIOLATION;
+                       break;
+               }
+
+               if( !manage && desc->ad_type->sat_obsolete ) {
+                       snprintf( textbuf, textlen, 
+                               "naming attribute '%s' is obsolete",
+                               ava->la_attr.bv_val );
+                       rc = LDAP_NAMING_VIOLATION;
+                       break;
+               }
+
+               if( !desc->ad_type->sat_equality ) {
+                       snprintf( textbuf, textlen, 
+                               "naming attribute '%s' has no equality matching rule",
+                               ava->la_attr.bv_val );
+                       rc = LDAP_NAMING_VIOLATION;
+                       break;
+               }
+
+               if( !desc->ad_type->sat_equality->smr_match ) {
+                       snprintf( textbuf, textlen, 
+                               "naming attribute '%s' has unsupported equality matching rule",
+                               ava->la_attr.bv_val );
+                       rc = LDAP_NAMING_VIOLATION;
+                       break;
+               }
+
+               /* find the naming attribute */
+               attr = attr_find( e->e_attrs, desc );
+               if ( attr == NULL ) {
+                       snprintf( textbuf, textlen, 
+                               "naming attribute '%s' is not present in entry",
+                               ava->la_attr.bv_val );
+                       rc = LDAP_NAMING_VIOLATION;
+                       break;
+               }
+
+               rc = value_find_ex( desc, SLAP_MR_VALUE_OF_ASSERTION_SYNTAX|
+                       SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
+                       attr->a_nvals, &ava->la_value, NULL );
+
+               if( rc != 0 ) {
+                       switch( rc ) {
+                       case LDAP_INAPPROPRIATE_MATCHING:
+                               snprintf( textbuf, textlen, 
+                                       "inappropriate matching for naming attribute '%s'",
+                                       ava->la_attr.bv_val );
+                               break;
+                       case LDAP_INVALID_SYNTAX:
+                               snprintf( textbuf, textlen, 
+                                       "value of naming attribute '%s' is invalid",
+                                       ava->la_attr.bv_val );
+                               break;
+                       case LDAP_NO_SUCH_ATTRIBUTE:
+                               snprintf( textbuf, textlen, 
+                                       "value of naming attribute '%s' is not present in entry",
+                                       ava->la_attr.bv_val );
+                               break;
+                       default:
+                               snprintf( textbuf, textlen, 
+                                       "naming attribute '%s' is inappropriate",
+                                       ava->la_attr.bv_val );
+                       }
+                       rc = LDAP_NAMING_VIOLATION;
+                       break;
+               }
+       }
+
+       ldap_rdnfree( rdn );
+       return rc;
+}
+