Pass a list instead of a single virtual IP to attribute enumerators

src/libhydra/plugins/attr/attr_provider.c

@@ -78,9 +78,9 @@ static bool attr_enum_filter(void *null, attribute_entry_t **in,
 
 METHOD(attribute_provider_t, create_attribute_enumerator, enumerator_t*,
 	private_attr_provider_t *this, char *pool,
-	identification_t *id, host_t *vip)
+	identification_t *id, linked_list_t *vips)
 {
-	if (vip)
+	if (vips->get_count(vips))
 	{
 		this->lock->read_lock(this->lock);
 		return enumerator_create_filter(