metadata: warn if collected names are ill-formatted

Make sure we properly collect owned-names items, just like we verify all
our other item generators.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>

diff --git a/metadata.c b/metadata.c
index 47dd52a1a8e83f7310509fc22d1ee0850de4ceaf..ad548c5b26710fc0bf42b6969a661ba1af151870 100644 (file)
--- a/metadata.c
+++ b/metadata.c
@@ -578,6 +578,9 @@ int kdbus_meta_add_conn_info(struct kdbus_meta *meta,
                        item = KDBUS_ITEM_NEXT(item);
                }
 
+               /* sanity check: the buffer should be completely written now */
+               WARN_ON((u8 *)item != (u8 *)meta->owned_names_items + size);
+
                meta->collected |= KDBUS_ATTACH_NAMES;
        }