feat(watchdog): 检测主机丢失安装时的地址与时钟未经 NTP 同步

internal/watchdog/clock_linux.go

@@ -0,0 +1,15 @@
+//go:build linux
+
+package watchdog
+
+import "syscall"
+
+// ClockStatus reads the kernel's clock status word. Modes stays zero, so the
+// call only reads and needs no privilege.
+func ClockStatus() (int32, bool) {
+	var t syscall.Timex
+	if _, err := syscall.Adjtimex(&t); err != nil {
+		return 0, false
+	}
+	return t.Status, true
+}