diff --git a/TODO-RELEASE b/TODO-RELEASE
index e8fb32b..501f25b 100644
--- a/TODO-RELEASE
+++ b/TODO-RELEASE
@@ -12,3 +12,4 @@
 libosmogsm	API change		struct ipac_preproc_ave_cfg: new zero-sized flexible array member at end
 libosmovty	ABI change		struct cmd_element: add a field for program specific attributes
 libosmovty	ABI change		struct vty_app_info: optional program specific attributes description
+libosmoctrl     ABI change		struct ctrl_handle changed size (new field "reply_cb" at the end)
diff --git a/include/osmocom/ctrl/control_if.h b/include/osmocom/ctrl/control_if.h
index 5fa9588..b73296f 100644
--- a/include/osmocom/ctrl/control_if.h
+++ b/include/osmocom/ctrl/control_if.h
@@ -9,6 +9,7 @@
 
 typedef int (*ctrl_cmd_lookup)(void *data, vector vline, int *node_type,
 				void **node_data, int *i);
+typedef void (*ctrl_cmd_reply_cb)(struct ctrl_handle *ctrl, struct ctrl_cmd *cmd, void *data);
 
 struct ctrl_handle {
 	struct osmo_fd listen_fd;
@@ -18,6 +19,12 @@
 
 	/* List of control connections */
 	struct llist_head ccon_list;
+
+	/* User defined GET/SET REPLY handler. User can set cmd->defer to 1 in
+	   order to own and keep the cmd pointer and free it after the function
+	   returns. "data" param is the user data pointer supplied during
+	   ctrl_handle allocation  */
+	ctrl_cmd_reply_cb reply_cb;
 };
 
 
diff --git a/src/ctrl/control_if.c b/src/ctrl/control_if.c
index ce2e367..9e3e3a9 100644
--- a/src/ctrl/control_if.c
+++ b/src/ctrl/control_if.c
@@ -221,6 +221,10 @@
 
 	if (cmd->type == CTRL_TYPE_SET_REPLY ||
 	    cmd->type == CTRL_TYPE_GET_REPLY) {
+		if (ctrl->reply_cb) {
+			ctrl->reply_cb(ctrl, cmd, data);
+			return CTRL_CMD_HANDLED;
+		}
 		if (strncmp(cmd->reply, "OK", 2) == 0) {
 			LOGP(DLCTRL, LOGL_DEBUG, "%s <%s> for %s is OK\n",
 			     get_value_string(ctrl_type_vals, cmd->type),