add stubs for invoke

cli.c

@@ -32,7 +32,8 @@ static int usage(char *prog)
 	fprintf(stderr,
 		"Usage: %s <command> [arguments...]\n"
 		"Commands:\n"
-		" - list [<path>]	List objects\n"
+		" - list [<path>]			List objects\n"
+		" - call <path> <method> [<message>]	Call an object method\n"
 		"\n", prog);
 	return 1;
 }
@@ -61,13 +62,21 @@ int main(int argc, char **argv)
 
 		ubus_start_request(ctx, &req, b.head, UBUS_MSG_LOOKUP, 0);
 		req.data_cb = receive_lookup;
-		ret = ubus_complete_request(ctx, &req);
+	} else if (!strcmp(cmd, "call")) {
-		if (ret)
+		if (argc < 4 || argc > 5)
-			fprintf(stderr, "Failed: %d\n", ret);
+			return usage(argv[0]);
+
+		blob_put_string(&b, UBUS_ATTR_OBJPATH, argv[2]);
+		blob_put_string(&b, UBUS_ATTR_METHOD, argv[3]);
+		ubus_start_request(ctx, &req, b.head, UBUS_MSG_INVOKE, 0);
 	} else {
 		return usage(argv[0]);
 	}
 
+	ret = ubus_complete_request(ctx, &req);
+	if (ret)
+		fprintf(stderr, "Failed: %s\n", ubus_strerror(ret));
+
 	ubus_free(ctx);
 	return 0;
 }

libubus.c

@@ -314,6 +314,28 @@ skip:
 	}
 }
 
+void ubus_invoke_path_async(struct ubus_context *ctx, const char *path, const char *method,
+                       struct blob_attr *msg, struct ubus_request *req)
+{
+	blob_buf_init(&b, 0);
+	blob_put_string(&b, UBUS_ATTR_OBJPATH, path);
+	blob_put_string(&b, UBUS_ATTR_METHOD, method);
+	blob_put(&b, UBUS_ATTR_DATA, blob_data(msg), blob_len(msg));
+
+	ubus_start_request(ctx, req, b.head, UBUS_MSG_INVOKE, 0);
+}
+
+int ubus_invoke_path(struct ubus_context *ctx, const char *path, const char *method,
+                struct blob_attr *msg, ubus_data_handler_t cb, void *priv)
+{
+	struct ubus_request req;
+
+	ubus_invoke_path_async(ctx, path, method, msg, &req);
+	req.data_cb = cb;
+	req.priv = priv;
+	return ubus_complete_request(ctx, &req);
+}
+
 void ubus_invoke_async(struct ubus_context *ctx, uint32_t obj, const char *method,
                        struct blob_attr *msg, struct ubus_request *req)
 {
@@ -322,7 +344,7 @@ void ubus_invoke_async(struct ubus_context *ctx, uint32_t obj, const char *metho
 	blob_put_string(&b, UBUS_ATTR_METHOD, method);
 	blob_put(&b, UBUS_ATTR_DATA, blob_data(msg), blob_len(msg));
 
-	ubus_start_request(ctx, req, b.head, UBUS_MSG_INVOKE, obj);
+	ubus_start_request(ctx, req, b.head, UBUS_MSG_INVOKE, 0);
 }
 
 int ubus_invoke(struct ubus_context *ctx, uint32_t obj, const char *method,

libubus.h

@@ -130,10 +130,14 @@ void ubus_abort_request(struct ubus_context *ctx, struct ubus_request *req);
 /* invoke a method on a specific object */
 int ubus_invoke(struct ubus_context *ctx, uint32_t obj, const char *method,
                 struct blob_attr *msg, ubus_data_handler_t cb, void *priv);
+int ubus_invoke_path(struct ubus_context *ctx, const char *path, const char *method,
+                struct blob_attr *msg, ubus_data_handler_t cb, void *priv);
 
 /* asynchronous version of ubus_invoke() */
 void ubus_invoke_async(struct ubus_context *ctx, uint32_t obj, const char *method,
                        struct blob_attr *msg, struct ubus_request *req);
+void ubus_invoke_path_async(struct ubus_context *ctx, const char *path, const char *method,
+                       struct blob_attr *msg, struct ubus_request *req);
 
 /* make an object visible to remote connections */
 int ubus_publish(struct ubus_context *ctx, struct ubus_object *obj);

ubusd_proto.c

@@ -161,10 +161,16 @@ static int ubusd_handle_lookup(struct ubus_client *cl, struct ubus_msg_buf *ub)
 	return 0;
 }
 
+static int ubusd_handle_invoke(struct ubus_client *cl, struct ubus_msg_buf *ub)
+{
+	return UBUS_STATUS_NOT_FOUND;
+}
+
 static const ubus_cmd_cb handlers[__UBUS_MSG_LAST] = {
 	[UBUS_MSG_PING] = ubusd_send_pong,
 	[UBUS_MSG_PUBLISH] = ubusd_handle_publish,
 	[UBUS_MSG_LOOKUP] = ubusd_handle_lookup,
+	[UBUS_MSG_INVOKE] = ubusd_handle_invoke,
 };
 
 void ubusd_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub)