介绍
客户想要通过APK来控制IPV6的启用和禁用，这里我们通过广播的方式来让客户控制IPV6。
效果展示
adb shell
ifconfig
这里我们用debug软件，将下面节点置为1 如图ipv6已被禁用了
echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
修改
接下来我们通过代码控制，动态注册广播
custom.action.intent.ipv6.on //禁用ipv6
custom.action.intent.ipv6.off //启用ipv6
路径：frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
//*/soda water.20232328.ipv6 switch
import java.io.BufferedWriter;
import java.io.FileWriter;
//*/
//我们在 init 中动态注册广播
public void init(Context context, IWindowManager windowManager,
WindowManagerFuncs windowManagerFuncs) {
//*/soda water.20232327.ipv6 switch
filter = new IntentFilter();
filter.addAction("custom.action.intent.ipv6.on");
filter.addAction("custom.action.intent.ipv6.off");
context.registerReceiver(Ipv6Receiver, filter);
//*/
}
//此处我们监听广播 这里定义广播
//*/soda water.20232327.ipv6 switch
BroadcastReceiver Ipv6Receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if ("custom.action.intent.ipv6.on".equals(intent.getAction())) {
setIpv6(true);
Log.d("soda water","on");
}else if ("custom.action.intent.ipv6.off".equals(intent.getAction())){
setIpv6(false);
Log.d("soda water","off");
}
}
};
private static void setIpv6(Boolean commod) {
BufferedWriter bufWriter;
try {
bufWriter = new BufferedWriter(new FileWriter("/proc/sys/net/ipv6/conf/all/disable_ipv6"));
Log.d("soda water","one");
bufWriter.write(commod?"1":"0");
Log.d("soda water","two");
bufWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
//*/接下来我们尝试用apk发送广播
public class MainActivity extends AppCompatActivity {
private ToggleButton tg_button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tg_button = findViewById(R.id.bt_switch);
tg_button.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
Intent intent = new Intent();
if (b) {
intent.setAction("custom.action.intent.ipv6.on");
sendBroadcast(intent);
} else {
intent.setAction("custom.action.intent.ipv6.off");
sendBroadcast(intent);
}
}
});
}
}验证发现缺少avc写入的权限
adb shell
logcat | grep avc
12-26 19:52:25.616 1310 1310 W system_server: type=1400 audit(0.0:193): avc: denied { write } for name="disable_ipv6" dev="proc" ino=27000 scontext=
u:r:system_server:s0 tcontext=u:object_r:proc_net:s0 tclass=file permissive=0上面显示 proc_net 在 system_server 中没有 write 权限
在如下路径补上如下代码 此时在此发送广播发现可以动态控制ipv6的启用和禁用了文章来源：https://www.toymoban.com/news/detail-808572.html
路径：system/sepolicy/private/system_server.te文章来源地址https://www.toymoban.com/news/detail-808572.html
allow system_server proc_net:file {open write getattr};到了这里，关于Android 13 动态启用或禁用IPV6的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！
