don't re-define known attributes

diff --git a/src/lib/dict.c b/src/lib/dict.c
index 1be204bad60c33ee4e90b00594bd5862a5bdf3c5..f55d6626b5764df067853b03d9812275ef7b2c4e 100644 (file)
--- a/src/lib/dict.c
+++ b/src/lib/dict.c
@@ -2787,6 +2787,12 @@ fr_dict_attr_t const *fr_dict_unknown_add(fr_dict_t *dict, fr_dict_attr_t const
         */
        if (old->type == PW_TYPE_VENDOR) if (fr_dict_vendor_add(dict, old->name, old->attr) < 0) return NULL;
 
+       /*
+        *      Look up the attribute.  If it's already defined, don't re-define it.
+        */
+       da = fr_dict_attr_child_by_num(parent, old->attr);
+       if (da) return old;
+
        if (fr_dict_attr_add(dict, old->parent, old->name, old->attr, old->type, flags) < 0) return NULL;
 
        da = fr_dict_attr_child_by_num(parent, old->attr);