Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 940 insertions, 0 deletions

diff --git a/servers/slapd/oc.c b/servers/slapd/oc.c
new file mode 100644
index 0000000..dc6297e
--- /dev/null
+++ b/servers/slapd/oc.c
@@ -0,0 +1,940 @@
+/* oc.c - object class routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 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 <stdio.h>
+
+#include <ac/ctype.h>
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+
+int is_object_subclass(
+	ObjectClass *sup,
+	ObjectClass *sub )
+{
+	int i;
+
+	if( sub == NULL || sup == NULL ) return 0;
+
+#if 0
+	Debug( LDAP_DEBUG_TRACE, "is_object_subclass(%s,%s) %d\n",
+		sup->soc_oid, sub->soc_oid, sup == sub );
+#endif
+
+	if ( sup == sub ) {
+		return 1;
+	}
+
+	if ( sub->soc_sups == NULL ) {
+		return 0;
+	}
+
+	for ( i = 0; sub->soc_sups[i] != NULL; i++ ) {
+		if ( is_object_subclass( sup, sub->soc_sups[i] ) ) {
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+int is_entry_objectclass(
+	Entry*	e,
+	ObjectClass *oc,
+	unsigned flags )
+{
+	/*
+	 * set_flags should only be true if oc is one of operational
+	 * object classes which we support objectClass flags for
+	 * (e.g., referral, alias, ...).  See <slap.h>.
+	 */
+
+	Attribute *attr;
+	struct berval *bv;
+
+	assert( !( e == NULL || oc == NULL ) );
+	assert( ( flags & SLAP_OCF_MASK ) != SLAP_OCF_MASK );
+
+	if ( e == NULL || oc == NULL ) {
+		return 0;
+	}
+
+	if ( flags == SLAP_OCF_SET_FLAGS && ( e->e_ocflags & SLAP_OC__END ) )
+	{
+		/* flags are set, use them */
+		return (e->e_ocflags & oc->soc_flags & SLAP_OC__MASK) != 0;
+	}
+
+	/*
+	 * find objectClass attribute
+	 */
+	attr = attr_find( e->e_attrs, slap_schema.si_ad_objectClass );
+	if ( attr == NULL ) {
+		/* no objectClass attribute */
+		Debug( LDAP_DEBUG_ANY, "is_entry_objectclass(\"%s\", \"%s\") "
+			"no objectClass attribute\n",
+			e->e_dn == NULL ? "" : e->e_dn,
+			oc->soc_oclass.oc_oid, 0 );
+
+		/* mark flags as set */
+		e->e_ocflags |= SLAP_OC__END;
+
+		return 0;
+	}
+
+	for ( bv = attr->a_vals; bv->bv_val; bv++ ) {
+		ObjectClass *objectClass = oc_bvfind( bv );
+
+		if ( objectClass == NULL ) {
+			/* FIXME: is this acceptable? */
+			continue;
+		}
+
+		if ( !( flags & SLAP_OCF_SET_FLAGS ) ) {
+			if ( objectClass == oc ) {
+				return 1;
+			}
+
+			if ( ( flags & SLAP_OCF_CHECK_SUP )
+				&& is_object_subclass( oc, objectClass ) )
+			{
+				return 1;
+			}
+		}
+		
+		e->e_ocflags |= objectClass->soc_flags;
+	}
+
+	/* mark flags as set */
+	e->e_ocflags |= SLAP_OC__END;
+
+	return ( e->e_ocflags & oc->soc_flags & SLAP_OC__MASK ) != 0;
+}
+
+
+struct oindexrec {
+	struct berval oir_name;
+	ObjectClass	*oir_oc;
+};
+
+static Avlnode	*oc_index = NULL;
+static Avlnode	*oc_cache = NULL;
+static LDAP_STAILQ_HEAD(OCList, ObjectClass) oc_list
+	= LDAP_STAILQ_HEAD_INITIALIZER(oc_list);
+
+ObjectClass *oc_sys_tail;
+
+static int
+oc_index_cmp(
+	const void *v_oir1,
+	const void *v_oir2 )
+{
+	const struct oindexrec *oir1 = v_oir1, *oir2 = v_oir2;
+	int i = oir1->oir_name.bv_len - oir2->oir_name.bv_len;
+	if (i) return i;
+	return strcasecmp( oir1->oir_name.bv_val, oir2->oir_name.bv_val );
+}
+
+static int
+oc_index_name_cmp(
+	const void *v_name,
+	const void *v_oir )
+{
+	const struct berval    *name = v_name;
+	const struct oindexrec *oir  = v_oir;
+	int i = name->bv_len - oir->oir_name.bv_len;
+	if (i) return i;
+	return strncasecmp( name->bv_val, oir->oir_name.bv_val, name->bv_len );
+}
+
+ObjectClass *
+oc_find( const char *ocname )
+{
+	struct berval bv;
+
+	bv.bv_val = (char *)ocname;
+	bv.bv_len = strlen( ocname );
+
+	return( oc_bvfind( &bv ) );
+}
+
+ObjectClass *
+oc_bvfind( struct berval *ocname )
+{
+	struct oindexrec	*oir;
+
+	if ( oc_cache ) {
+		oir = avl_find( oc_cache, ocname, oc_index_name_cmp );
+		if ( oir ) return oir->oir_oc;
+	}
+	oir = avl_find( oc_index, ocname, oc_index_name_cmp );
+
+	if ( oir != NULL ) {
+		if ( at_oc_cache ) {
+			avl_insert( &oc_cache, (caddr_t) oir,
+				oc_index_cmp, avl_dup_error );
+		}
+		return( oir->oir_oc );
+	}
+
+	return( NULL );
+}
+
+static LDAP_STAILQ_HEAD(OCUList, ObjectClass) oc_undef_list
+	= LDAP_STAILQ_HEAD_INITIALIZER(oc_undef_list);
+
+ObjectClass *
+oc_bvfind_undef( struct berval *ocname )
+{
+	ObjectClass	*oc = oc_bvfind( ocname );
+
+	if ( oc ) {
+		return oc;
+	}
+
+	LDAP_STAILQ_FOREACH( oc, &oc_undef_list, soc_next ) {
+		int	d = oc->soc_cname.bv_len - ocname->bv_len;
+
+		if ( d ) {
+			continue;
+		}
+
+		if ( strcasecmp( oc->soc_cname.bv_val, ocname->bv_val ) == 0 ) {
+			break;
+		}
+	}
+	
+	if ( oc ) {
+		return oc;
+	}
+	
+	oc = ch_malloc( sizeof( ObjectClass ) + ocname->bv_len + 1 );
+	memset( oc, 0, sizeof( ObjectClass ) );
+
+	oc->soc_cname.bv_len = ocname->bv_len;
+	oc->soc_cname.bv_val = (char *)&oc[ 1 ];
+	AC_MEMCPY( oc->soc_cname.bv_val, ocname->bv_val, ocname->bv_len );
+	oc->soc_cname.bv_val[ oc->soc_cname.bv_len ] = '\0';
+
+	/* canonical to upper case */
+	ldap_pvt_str2upper( oc->soc_cname.bv_val );
+
+	LDAP_STAILQ_NEXT( oc, soc_next ) = NULL;
+	ldap_pvt_thread_mutex_lock( &oc_undef_mutex );
+	LDAP_STAILQ_INSERT_HEAD( &oc_undef_list, oc, soc_next );
+	ldap_pvt_thread_mutex_unlock( &oc_undef_mutex );
+
+	return oc;
+}
+
+static int
+oc_create_required(
+	ObjectClass		*soc,
+	char			**attrs,
+	int			*op,
+	const char		**err )
+{
+	char		**attrs1;
+	AttributeType	*sat;
+	AttributeType	**satp;
+	int		i;
+
+	if ( attrs ) {
+		attrs1 = attrs;
+		while ( *attrs1 ) {
+			sat = at_find(*attrs1);
+			if ( !sat ) {
+				*err = *attrs1;
+				return SLAP_SCHERR_ATTR_NOT_FOUND;
+			}
+
+			if( is_at_operational( sat )) (*op)++;
+
+			if ( at_find_in_list(sat, soc->soc_required) < 0) {
+				if ( at_append_to_list(sat, &soc->soc_required) ) {
+					*err = *attrs1;
+					return SLAP_SCHERR_OUTOFMEM;
+				}
+			}
+			attrs1++;
+		}
+		/* Now delete duplicates from the allowed list */
+		for ( satp = soc->soc_required; *satp; satp++ ) {
+			i = at_find_in_list(*satp, soc->soc_allowed);
+			if ( i >= 0 ) {
+				at_delete_from_list(i, &soc->soc_allowed);
+			}
+		}
+	}
+	return 0;
+}
+
+static int
+oc_create_allowed(
+    ObjectClass		*soc,
+    char		**attrs,
+	int			*op,
+    const char		**err )
+{
+	char		**attrs1;
+	AttributeType	*sat;
+
+	if ( attrs ) {
+		attrs1 = attrs;
+		while ( *attrs1 ) {
+			sat = at_find(*attrs1);
+			if ( !sat ) {
+				*err = *attrs1;
+				return SLAP_SCHERR_ATTR_NOT_FOUND;
+			}
+
+			if( is_at_operational( sat )) (*op)++;
+
+			if ( at_find_in_list(sat, soc->soc_required) < 0 &&
+			     at_find_in_list(sat, soc->soc_allowed) < 0 ) {
+				if ( at_append_to_list(sat, &soc->soc_allowed) ) {
+					*err = *attrs1;
+					return SLAP_SCHERR_OUTOFMEM;
+				}
+			}
+			attrs1++;
+		}
+	}
+	return 0;
+}
+
+static int
+oc_add_sups(
+	ObjectClass		*soc,
+	char			**sups,
+	int			*op,
+	const char		**err )
+{
+	int		code;
+	ObjectClass	*soc1;
+	int		nsups;
+	char	**sups1;
+	int		add_sups = 0;
+
+	if ( sups ) {
+		if ( !soc->soc_sups ) {
+			/* We are at the first recursive level */
+			add_sups = 1;
+			nsups = 1;
+			sups1 = sups;
+			while ( *sups1 ) {
+				nsups++;
+				sups1++;
+			}
+			soc->soc_sups = (ObjectClass **)ch_calloc(nsups,
+					  sizeof(ObjectClass *));
+		}
+
+		nsups = 0;
+		sups1 = sups;
+		while ( *sups1 ) {
+			soc1 = oc_find(*sups1);
+			if ( !soc1 ) {
+				*err = *sups1;
+				return SLAP_SCHERR_CLASS_NOT_FOUND;
+			}
+
+			/* check object class usage
+			 * abstract classes can only sup abstract classes 
+			 * structural classes can not sup auxiliary classes
+			 * auxiliary classes can not sup structural classes
+			 */
+			if( soc->soc_kind != soc1->soc_kind
+				&& soc1->soc_kind != LDAP_SCHEMA_ABSTRACT )
+			{
+				*err = *sups1;
+				return SLAP_SCHERR_CLASS_BAD_SUP;
+			}
+
+			if( soc1->soc_obsolete && !soc->soc_obsolete ) {
+				*err = *sups1;
+				return SLAP_SCHERR_CLASS_BAD_SUP;
+			}
+
+			if( soc->soc_flags & SLAP_OC_OPERATIONAL ) (*op)++;
+
+			if ( add_sups ) {
+				soc->soc_sups[nsups] = soc1;
+			}
+
+			code = oc_add_sups( soc, soc1->soc_sup_oids, op, err );
+			if ( code ) return code;
+
+			code = oc_create_required( soc, soc1->soc_at_oids_must, op, err );
+			if ( code ) return code;
+
+			code = oc_create_allowed( soc, soc1->soc_at_oids_may, op, err );
+			if ( code ) return code;
+
+			nsups++;
+			sups1++;
+		}
+	}
+
+	return 0;
+}
+
+static void
+oc_delete_names( ObjectClass *oc )
+{
+	char			**names = oc->soc_names;
+
+	if (!names) return;
+
+	while (*names) {
+		struct oindexrec	tmpoir, *oir;
+
+		ber_str2bv( *names, 0, 0, &tmpoir.oir_name );
+		tmpoir.oir_oc = oc;
+		oir = (struct oindexrec *)avl_delete( &oc_index,
+			(caddr_t)&tmpoir, oc_index_cmp );
+		assert( oir != NULL );
+		ldap_memfree( oir );
+		names++;
+	}
+}
+
+/* Mark the ObjectClass as deleted, remove from list, and remove all its
+ * names from the AVL tree. Leave the OID in the tree.
+ */
+void
+oc_delete( ObjectClass *oc )
+{
+	oc->soc_flags |= SLAP_OC_DELETED;
+
+	LDAP_STAILQ_REMOVE(&oc_list, oc, ObjectClass, soc_next);
+
+	oc_delete_names( oc );
+}
+
+static void
+oc_clean( ObjectClass *o )
+{
+	if (o->soc_sups) {
+		ldap_memfree(o->soc_sups);
+		o->soc_sups = NULL;
+	}
+	if (o->soc_required) {
+		ldap_memfree(o->soc_required);
+		o->soc_required = NULL;
+	}
+	if (o->soc_allowed) {
+		ldap_memfree(o->soc_allowed);
+		o->soc_allowed = NULL;
+	}
+	if (o->soc_oidmacro) {
+		ldap_memfree(o->soc_oidmacro);
+		o->soc_oidmacro = NULL;
+	}
+}
+
+static void
+oc_destroy_one( void *v )
+{
+	struct oindexrec *oir = v;
+	ObjectClass *o = oir->oir_oc;
+
+	oc_clean( o );
+	ldap_objectclass_free((LDAPObjectClass *)o);
+	ldap_memfree(oir);
+}
+
+void
+oc_destroy( void )
+{
+	ObjectClass *o;
+
+	while( !LDAP_STAILQ_EMPTY(&oc_list) ) {
+		o = LDAP_STAILQ_FIRST(&oc_list);
+		LDAP_STAILQ_REMOVE_HEAD(&oc_list, soc_next);
+
+		oc_delete_names( o );
+	}
+	
+	avl_free( oc_index, oc_destroy_one );
+
+	while( !LDAP_STAILQ_EMPTY(&oc_undef_list) ) {
+		o = LDAP_STAILQ_FIRST(&oc_undef_list);
+		LDAP_STAILQ_REMOVE_HEAD(&oc_undef_list, soc_next);
+
+		ch_free( (ObjectClass *)o );
+	}
+}
+
+int
+oc_start( ObjectClass **oc )
+{
+	assert( oc != NULL );
+
+	*oc = LDAP_STAILQ_FIRST(&oc_list);
+
+	return (*oc != NULL);
+}
+
+int
+oc_next( ObjectClass **oc )
+{
+	assert( oc != NULL );
+
+#if 0	/* pedantic check: breaks when deleting an oc, don't use it. */
+	{
+		ObjectClass *tmp = NULL;
+
+		LDAP_STAILQ_FOREACH(tmp,&oc_list,soc_next) {
+			if ( tmp == *oc ) {
+				break;
+			}
+		}
+
+		assert( tmp != NULL );
+	}
+#endif
+
+	if ( *oc == NULL ) {
+		return 0;
+	}
+
+	*oc = LDAP_STAILQ_NEXT(*oc,soc_next);
+
+	return (*oc != NULL);
+}
+
+/*
+ * check whether the two ObjectClasses actually __are__ identical,
+ * or rather inconsistent
+ */
+static int
+oc_check_dup(
+	ObjectClass	*soc,
+	ObjectClass	*new_soc )
+{
+	if ( new_soc->soc_oid != NULL ) {
+		if ( soc->soc_oid == NULL ) {
+			return SLAP_SCHERR_CLASS_INCONSISTENT;
+		}
+
+		if ( strcmp( soc->soc_oid, new_soc->soc_oid ) != 0 ) {
+			return SLAP_SCHERR_CLASS_INCONSISTENT;
+		}
+
+	} else {
+		if ( soc->soc_oid != NULL ) {
+			return SLAP_SCHERR_CLASS_INCONSISTENT;
+		}
+	}
+
+	if ( new_soc->soc_names ) {
+		int	i;
+
+		if ( soc->soc_names == NULL ) {
+			return SLAP_SCHERR_CLASS_INCONSISTENT;
+		}
+
+		for ( i = 0; new_soc->soc_names[ i ]; i++ ) {
+			if ( soc->soc_names[ i ] == NULL ) {
+				return SLAP_SCHERR_CLASS_INCONSISTENT;
+			}
+			
+			if ( strcasecmp( soc->soc_names[ i ],
+					new_soc->soc_names[ i ] ) != 0 )
+			{
+				return SLAP_SCHERR_CLASS_INCONSISTENT;
+			}
+		}
+	} else {
+		if ( soc->soc_names != NULL ) {
+			return SLAP_SCHERR_CLASS_INCONSISTENT;
+		}
+	}
+
+	return SLAP_SCHERR_CLASS_DUP;
+}
+
+static struct oindexrec *oir_old;
+
+static int
+oc_dup_error( void *left, void *right )
+{
+	oir_old = left;
+	return -1;
+}
+
+static int
+oc_insert(
+    ObjectClass		**roc,
+	ObjectClass		*prev,
+    const char		**err )
+{
+	struct oindexrec	*oir;
+	char			**names;
+	ObjectClass		*soc = *roc;
+
+	if ( soc->soc_oid ) {
+		oir = (struct oindexrec *)
+			ch_calloc( 1, sizeof(struct oindexrec) );
+		ber_str2bv( soc->soc_oid, 0, 0, &oir->oir_name );
+		oir->oir_oc = soc;
+		oir_old = NULL;
+
+		if ( avl_insert( &oc_index, (caddr_t) oir,
+			oc_index_cmp, oc_dup_error ) )
+		{
+			ObjectClass	*old_soc;
+			int		rc;
+
+			*err = soc->soc_oid;
+
+			assert( oir_old != NULL );
+			old_soc = oir_old->oir_oc;
+
+			/* replacing a deleted definition? */
+			if ( old_soc->soc_flags & SLAP_OC_DELETED ) {
+				ObjectClass tmp;
+
+				/* Keep old oid, free new oid;
+				 * Keep new everything else, free old
+				 */
+				tmp = *old_soc;
+				*old_soc = *soc;
+				old_soc->soc_oid = tmp.soc_oid;
+				tmp.soc_oid = soc->soc_oid;
+				*soc = tmp;
+
+				oc_clean( soc );
+				oc_destroy_one( oir );
+
+				oir = oir_old;
+				soc = old_soc;
+				*roc = soc;
+			} else {
+				rc = oc_check_dup( old_soc, soc );
+
+				ldap_memfree( oir );
+				return rc;
+			}
+		}
+
+		/* FIX: temporal consistency check */
+		assert( oc_bvfind( &oir->oir_name ) != NULL );
+	}
+
+	assert( soc != NULL );
+
+	if ( (names = soc->soc_names) ) {
+		while ( *names ) {
+			oir = (struct oindexrec *)
+				ch_calloc( 1, sizeof(struct oindexrec) );
+			oir->oir_name.bv_val = *names;
+			oir->oir_name.bv_len = strlen( *names );
+			oir->oir_oc = soc;
+
+			if ( avl_insert( &oc_index, (caddr_t) oir,
+				oc_index_cmp, avl_dup_error ) )
+			{
+				ObjectClass	*old_soc;
+				int		rc;
+
+				*err = *names;
+
+				old_soc = oc_bvfind( &oir->oir_name );
+				assert( old_soc != NULL );
+				rc = oc_check_dup( old_soc, soc );
+
+				ldap_memfree( oir );
+
+				while ( names > soc->soc_names ) {
+					struct oindexrec	tmpoir;
+
+					names--;
+					ber_str2bv( *names, 0, 0, &tmpoir.oir_name );
+					tmpoir.oir_oc = soc;
+					oir = (struct oindexrec *)avl_delete( &oc_index,
+						(caddr_t)&tmpoir, oc_index_cmp );
+					assert( oir != NULL );
+					ldap_memfree( oir );
+				}
+
+				if ( soc->soc_oid ) {
+					struct oindexrec	tmpoir;
+
+					ber_str2bv( soc->soc_oid, 0, 0, &tmpoir.oir_name );
+					tmpoir.oir_oc = soc;
+					oir = (struct oindexrec *)avl_delete( &oc_index,
+						(caddr_t)&tmpoir, oc_index_cmp );
+					assert( oir != NULL );
+					ldap_memfree( oir );
+				}
+
+				return rc;
+			}
+
+			/* FIX: temporal consistency check */
+			assert( oc_bvfind(&oir->oir_name) != NULL );
+
+			names++;
+		}
+	}
+	if ( soc->soc_flags & SLAP_OC_HARDCODE ) {
+		prev = oc_sys_tail;
+		oc_sys_tail = soc;
+	}
+	if ( prev ) {
+		LDAP_STAILQ_INSERT_AFTER( &oc_list, prev, soc, soc_next );
+	} else {
+		LDAP_STAILQ_INSERT_TAIL( &oc_list, soc, soc_next );
+	}
+
+	return 0;
+}
+
+int
+oc_add(
+    LDAPObjectClass	*oc,
+	int user,
+	ObjectClass		**rsoc,
+	ObjectClass		*prev,
+    const char		**err )
+{
+	ObjectClass	*soc;
+	int		code;
+	int		op = 0;
+	char	*oidm = NULL;
+
+	if ( oc->oc_names != NULL ) {
+		int i;
+
+		for( i=0; oc->oc_names[i]; i++ ) {
+			if( !slap_valid_descr( oc->oc_names[i] ) ) {
+				return SLAP_SCHERR_BAD_DESCR;
+			}
+		}
+	}
+
+	if ( !OID_LEADCHAR( oc->oc_oid[0] )) {
+		/* Expand OID macros */
+		char *oid = oidm_find( oc->oc_oid );
+		if ( !oid ) {
+			*err = oc->oc_oid;
+			return SLAP_SCHERR_OIDM;
+		}
+		if ( oid != oc->oc_oid ) {
+			oidm = oc->oc_oid;
+			oc->oc_oid = oid;
+		}
+	}
+
+	soc = (ObjectClass *) ch_calloc( 1, sizeof(ObjectClass) );
+	AC_MEMCPY( &soc->soc_oclass, oc, sizeof(LDAPObjectClass) );
+
+	soc->soc_oidmacro = oidm;
+	if( oc->oc_names != NULL ) {
+		soc->soc_cname.bv_val = soc->soc_names[0];
+	} else {
+		soc->soc_cname.bv_val = soc->soc_oid;
+	}
+	soc->soc_cname.bv_len = strlen( soc->soc_cname.bv_val );
+
+	if( soc->soc_sup_oids == NULL &&
+		soc->soc_kind == LDAP_SCHEMA_STRUCTURAL )
+	{
+		/* structural object classes implicitly inherit from 'top' */
+		static char *top_oids[] = { SLAPD_TOP_OID, NULL };
+		code = oc_add_sups( soc, top_oids, &op, err );
+	} else {
+		code = oc_add_sups( soc, soc->soc_sup_oids, &op, err );
+	}
+
+	if ( code != 0 ) {
+		goto done;
+	}
+
+	if ( user && op ) {
+		code = SLAP_SCHERR_CLASS_BAD_SUP;
+		goto done;
+	}
+
+	code = oc_create_required( soc, soc->soc_at_oids_must, &op, err );
+	if ( code != 0 ) {
+		goto done;
+	}
+
+	code = oc_create_allowed( soc, soc->soc_at_oids_may, &op, err );
+	if ( code != 0 ) {
+		goto done;
+	}
+
+	if ( user && op ) {
+		code = SLAP_SCHERR_CLASS_BAD_USAGE;
+		goto done;
+	}
+
+	if ( !user ) {
+		soc->soc_flags |= SLAP_OC_HARDCODE;
+	}
+
+	code = oc_insert(&soc,prev,err);
+done:;
+	if ( code != 0 ) {
+		if ( soc->soc_sups ) {
+			ch_free( soc->soc_sups );
+		}
+
+		if ( soc->soc_required ) {
+			ch_free( soc->soc_required );
+		}
+
+		if ( soc->soc_allowed ) {
+			ch_free( soc->soc_allowed );
+		}
+
+		if ( soc->soc_oidmacro ) {
+			ch_free( soc->soc_oidmacro );
+		}
+
+		ch_free( soc );
+
+	} else if ( rsoc ) {
+		*rsoc = soc;
+	}
+	return code;
+}
+
+void
+oc_unparse( BerVarray *res, ObjectClass *start, ObjectClass *end, int sys )
+{
+	ObjectClass *oc;
+	int i, num;
+	struct berval bv, *bva = NULL, idx;
+	char ibuf[32];
+
+	if ( !start )
+		start = LDAP_STAILQ_FIRST( &oc_list );
+
+	/* count the result size */
+	i = 0;
+	for ( oc=start; oc; oc=LDAP_STAILQ_NEXT(oc, soc_next)) {
+		if ( sys && !(oc->soc_flags & SLAP_OC_HARDCODE)) break;
+		i++;
+		if ( oc == end ) break;
+	}
+	if (!i) return;
+
+	num = i;
+	bva = ch_malloc( (num+1) * sizeof(struct berval) );
+	BER_BVZERO( bva );
+	idx.bv_val = ibuf;
+	if ( sys ) {
+		idx.bv_len = 0;
+		ibuf[0] = '\0';
+	}
+	i = 0;
+	for ( oc=start; oc; oc=LDAP_STAILQ_NEXT(oc, soc_next)) {
+		LDAPObjectClass loc, *locp;
+		if ( sys && !(oc->soc_flags & SLAP_OC_HARDCODE)) break;
+		if ( oc->soc_oidmacro ) {
+			loc = oc->soc_oclass;
+			loc.oc_oid = oc->soc_oidmacro;
+			locp = &loc;
+		} else {
+			locp = &oc->soc_oclass;
+		}
+		if ( ldap_objectclass2bv( locp, &bv ) == NULL ) {
+			ber_bvarray_free( bva );
+		}
+		if ( !sys ) {
+			idx.bv_len = sprintf(idx.bv_val, "{%d}", i);
+		}
+		bva[i].bv_len = idx.bv_len + bv.bv_len;
+		bva[i].bv_val = ch_malloc( bva[i].bv_len + 1 );
+		strcpy( bva[i].bv_val, ibuf );
+		strcpy( bva[i].bv_val + idx.bv_len, bv.bv_val );
+		i++;
+		bva[i].bv_val = NULL;
+		ldap_memfree( bv.bv_val );
+		if ( oc == end ) break;
+	}
+	*res = bva;
+}
+
+int
+oc_schema_info( Entry *e )
+{
+	AttributeDescription *ad_objectClasses = slap_schema.si_ad_objectClasses;
+	ObjectClass	*oc;
+	struct berval	val;
+	struct berval	nval;
+
+	LDAP_STAILQ_FOREACH( oc, &oc_list, soc_next ) {
+		if( oc->soc_flags & SLAP_OC_HIDE ) continue;
+
+		if ( ldap_objectclass2bv( &oc->soc_oclass, &val ) == NULL ) {
+			return -1;
+		}
+
+		nval = oc->soc_cname;
+
+#if 0
+		Debug( LDAP_DEBUG_TRACE, "Merging oc [%ld] %s (%s)\n",
+	       (long) val.bv_len, val.bv_val, nval.bv_val );
+#endif
+
+		if( attr_merge_one( e, ad_objectClasses, &val, &nval ) ) {
+			return -1;
+		}
+		ldap_memfree( val.bv_val );
+	}
+	return 0;
+}
+
+int
+register_oc( const char *def, ObjectClass **soc, int dupok )
+{
+	LDAPObjectClass *oc;
+	int code;
+	const char *err;
+
+	oc = ldap_str2objectclass( def, &code, &err, LDAP_SCHEMA_ALLOW_ALL );
+	if ( !oc ) {
+		Debug( LDAP_DEBUG_ANY,
+			"register_oc: objectclass \"%s\": %s, %s\n",
+			def, ldap_scherr2str(code), err );
+		return code;
+	}
+	code = oc_add(oc,0,NULL,NULL,&err);
+	if ( code && ( code != SLAP_SCHERR_CLASS_DUP || !dupok )) {
+		Debug( LDAP_DEBUG_ANY,
+			"register_oc: objectclass \"%s\": %s, %s\n",
+			def, scherr2str(code), err );
+		ldap_objectclass_free(oc);
+		return code;
+	}
+	if ( soc )
+		*soc = oc_find(oc->oc_names[0]);
+	if ( code ) {
+		ldap_objectclass_free(oc);
+	} else {
+		ldap_memfree(oc);
+	}
+	return 0;
+}