polkit.addRule(function(action, subject) {
    var idx = action.id.lastIndexOf('.');
    var username_stripped = action.id.substring(0, idx);
    var username = action.id.substring(idx + 1);
    if (username_stripped === "mko.cpupower.setcpufreq") {
	if (subject.user === username) {
	    return polkit.Result.YES;
	} else {
	    return polkit.Result.NO;
	}
    }
});