add instance file attribute with md5 hash checks

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/utils.h b/utils.h
index 360f9f1..fba7417 100644
--- a/utils.h
+++ b/utils.h
@@ -11,6 +11,7 @@ struct blobmsg_list_node {
 };
 
 typedef bool (*blobmsg_list_cmp)(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2);
+typedef void (*blobmsg_update_cb)(struct blobmsg_list_node *n);
 
 struct blobmsg_list {
 	struct avl_tree avl;