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Android 13 在Settings搜索没有发现以太网设置,应该是移除了,但是客户的设备需要,所以移植Android 11的.
以太网相关的功能在Android13中进行模块化,提取到packages/modules/Connectivity/中, EthernetManager相关代码从framework移到packages/modules/…移植EthernetSettings
Android 13 在Settings搜索没有发现以太网设置,应该是移除了,但是客户的设备需要,所以移植Android 11的.
以太网相关的功能在Android13中进行模块化,提取到packages/modules/Connectivity/中, EthernetManager相关代码从framework移到packages/modules/Connectivity/下.
Android 13 internet界面有无网络,会显示不同的界面!
--- a/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetServiceImpl.javab/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetServiceImpl.java-16,11 16,16 package com.android.server.ethernet;import static android.net.EthernetManager.ETHERNET_STATE_DISABLED;
import static android.net.EthernetManager.ETHERNET_STATE_ENABLED;import static android.net.NetworkCapabilities.TRANSPORT_TEST;import android.annotation.NonNull;import android.annotation.Nullable;
import android.content.BroadcastReceiver;import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter; -63,6 69,14 public class EthernetServiceImpl extends IEthernetManager.Stub {mContext context;mHandler handler;mTracker tracker;//add xxxIntentFilter intentFilter new IntentFilter();intentFilter.addAction(xx.action.xx.ethernet.open);intentFilter.addAction(xx.action.xx.ethernet.close);mEthernetSwitchBroadcast new EthernetSwitchBroadcastReceiver();context.registerReceiver(mEthernetSwitchBroadcast, intentFilter);//add xxx
}private void enforceAutomotiveDevice(final NonNull String methodName) {-77,9 91,63 public class EthernetServiceImpl extends IEthernetManager.Stub {public void start() {Log.i(TAG, Starting Ethernet service);
- mTracker.start();
- mStarted.set(true);//add xxx//mTracker.start();//mStarted.set(true);mEthernetState getEthernetState();boolean is_enabled false;if (mEthernetState ETHERNET_STATE_ENABLED) {is_enabled true;}mTracker.start(is_enabled);mStarted.set(is_enabled);//add xxx}//add xxxprivate EthernetSwitchBroadcastReceiver mEthernetSwitchBroadcast;private int mState -1;private int mEthernetState; //-1 init 0 disable 1 enableprivate int getEthernetState() {int state SystemProperties.getInt(xxx_ethernet_on, 0);return state;}private void setEthernetState(int state) {//SystemProperties.set(xxx__ethernet_on, state );}public synchronized void setState(int state) {Log.i(TAG, setState from mState mState to state state);if (mState ! state) {mState state;if (state ETHERNET_STATE_DISABLED) {//setEthernetState(ETHERNET_STATE_DISABLED);mTracker.setIntefaceState(false);mStarted.set(false);} else {//setEthernetState(ETHERNET_STATE_ENABLED);mTracker.setIntefaceState(true);mStarted.set(true);}}}class EthernetSwitchBroadcastReceiver extends BroadcastReceiver {Overridepublic void onReceive(Context context, Intent intent) {String action intent.getAction();Log.d(TAG, EthernetSwitchBroadcastReceiver action: action);if (action.equals(xx.action.xx.ethernet.open)) {setState(ETHERNET_STATE_ENABLED);} else if (action.equals(xx.action.xx.ethernet.close)) {setState(ETHERNET_STATE_DISABLED);}}}//add xxxprivate void throwIfEthernetNotStarted() {if (!mStarted.get()) {
diff --git a/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetTracker.java b/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetTracker.java
index 1c02a6625f..34c8c8dc8d 100644
--- a/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetTracker.javab/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetTracker.java-43,6 43,7 import android.os.Handler;import android.os.RemoteCallbackList;import android.os.RemoteException;import android.os.ServiceSpecificException;
import android.provider.Settings;import android.text.TextUtils;import android.util.ArrayMap;import android.util.Log;-173,7 174,12 public class EthernetTracker {mConfigStore new EthernetConfigStore();} //add xxxvoid start() {start(true);}void start(boolean isEnabled) {mFactory.register();mConfigStore.read(); -191,8 197,31 public class EthernetTracker {Log.e(TAG, Could not register InterfaceObserver e);}- mHandler.post(this::trackAvailableInterfaces);if (isEnabled) {mHandler.post(this::trackAvailableInterfaces);}}public synchronized void setIntefaceState(boolean isFaceUp) {try {String[] interfaces getInterfaces(true);for (String iface : interfaces) {if (isTrackingInterface(iface)) {if (isFaceUp) {NetdUtils.setInterfaceUp(mNetd, iface);} else {NetdUtils.setInterfaceDown(mNetd, iface);}}}if (isFaceUp) {mHandler.post(this::trackAvailableInterfaces);}} catch (Exception e) {Log.e(TAG, Error change eth isFaceUp : isFaceUp);}}//add xxxvoid updateIpConfiguration(String iface, IpConfiguration ipConfiguration) {if (DBG) {-521,7 550,7 public class EthernetTracker {}final String hwAddress config.hwAddr;
-Settings.System.putString(mContext.getContentResolver(), sys_tex_hwAddress, hwAddress);//add xx xxNetworkCapabilities nc mNetworkCapabilities.get(iface);if (nc null) {// Try to resolve using mac address
Android13 有线网开关研究 Android13 原生以太网实现设置静态IP Android13 MTK平台添加以太网设置静态IP菜单
问题补充:再/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/ 目录下, 想利用SystemProperties.set()保存数据,但是编译报错,error: cannot find symbol,但是我明明导入了 为什么这么确认我导入,因为还引用了SystemProperties.getInt().然后控制变量,定位到问题是SystemProperties.set()无法再这个目录使用. 为什么会有这个问题呢我百度大法有了一些大致的猜想!然后去查看了它的Android.bp
packages/modules/Connectivity/service-t/Android.bp// This builds T services depending on framework-connectivity-t
// hidden symbols separately from the S services, to ensure that S
// services cannot accidentally depend on T hidden symbols from
// framework-connectivity-t.
java_library {name: service-connectivity-tiramisu-pre-jarjar,sdk_version: system_server_current,// TODO(b/210962470): Bump this to at least S, and then T.min_sdk_version: 30,srcs: [:service-connectivity-tiramisu-sources,],libs: [ 问题可能关于sdk_version这个属性有关! 当然上面的都只是猜测,只是做个记录,为什么无法编译的bug还没解决.
然后去询问大佬,大佬提供一个思路,让我用反射去调用它,确实编译通过了,数据也能保存. (ps:我太执着于解决那个编译报错,而忘记了自己的目的!目的是啥,是利用SystemProperties.set()保存数据, 既然(正常)固定的调用方式编译报错,然后一时半会又搞不定编译报错(难点:报错信息不够明确,无法定位). 应该先去想还有什么其它的方式可能调用SystemProperties.set(),先达成目的,然后再回来想想那个编译报错.) b/packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetTracker.java
import java.lang.reflect.Method;-551,6 552,7 public class EthernetTracker {final String hwAddress config.hwAddr;setProperty(sys.xxx.xxx,hwAddress);NetworkCapabilities nc mNetworkCapabilities.get(iface);if (nc null) {// Try to resolve using mac address-578,6 580,17 public class EthernetTracker {}} //add textprivate void setProperty(String key, String value){try {Class? c Class.forName(android.os.SystemProperties);Method method c.getMethod(set,String.class,String.class);method.invoke(c,key,value);}catch (Exception e){Log.d(TAG,xxxxxxxxxx);}}//add text大佬的博客,感谢大佬 Android 使用反射机制获取或设置系统属性 Android高版本源码编译提示error: cannot find symbol 内置 APP 如何访问隐藏 API
Ethernet更新
新增以太网打开关闭的函数
./packages/modules/Connectivity/framework-t/src/android/net/EthernetManager.javaRequiresPermission(anyOf {NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK,android.Manifest.permission.NETWORK_STACK,android.Manifest.permission.NETWORK_SETTINGS})SystemApi(client MODULE_LIBRARIES)public void setEthernetEnabled(boolean enabled) {try {mService.setEthernetEnabled(enabled);} catch (RemoteException e) {throw e.rethrowFromSystemServer();}}
//需要权限和系统应用签名(SystemApi) Android 13 Ethernet变更
Anrdoir 13 adout static net ip
frameworks/base/core/java/android/net/EthernetManager.java //上层用于管理以太网,app可调用packages/modules/Connectivity/framework/src/android/net/IpConfiguration.java//用来配置动态/静态IPpackages/modules/Connectivity/framework/src/android/net/StaticIpConfiguration.java //静态IP参数类ConnectivityService 日志TAG
import java.net.Inet4Address;
import java.net.InetAddress;
import android.net.EthernetManager;
import android.net.IpConfiguration;
import android.net.IpConfiguration.IpAssignment;
import android.net.IpConfiguration.ProxySettings;
import android.net.wifi.SupplicantState;
import android.net.wifi.WifiInfo;
import android.net.StaticIpConfiguration;
import android.net.LinkAddress;
import android.net.LinkProperties;private void setTextStaticIpConfiguration(Intent intent) {String ethMode null; // static;String ethIpAddress null; //192.168.1.xxx;String ethNetmask null; // 255.255.255.0;String ethGateway null; // 192.168.x.x;String ethdns1 null; // 192.168.x.x;String ethdns2 null; //null;mEthManager (EthernetManager)getSystemService(Context.ETHERNET_SERVICE);if (mEthManager null) {Log.i(TAG, setTextStaticIpConfiguration: fail to getSystemService : Context.ETHERNET_SERVICE);}String[] ifaces mEthManager.getAvailableInterfaces();if (ifaces.length 0) {mIfaceName ifaces[0];//eth0;}if (null mIfaceName) {Log.e(TAG, setTextStaticIpConfiguration: get ethernet ifaceName failed);return;}Bundle bundle intent.getExtras();if (bundle.getString(netMode) ! null)ethMode bundle.getString(netMode);if (bundle.getString(ipaddr) ! null)ethIpAddress bundle.getString(ipaddr);if (bundle.getString(netMask) ! null)ethNetmask bundle.getString(netMask);if (bundle.getString(gateway) ! null)ethGateway bundle.getString(gateway);if (bundle.getString(dns1) ! null)ethdns1 bundle.getString(dns1);if (bundle.getString(dns2) ! null)ethdns2 bundle.getString(dns2);Log.d(TAG, static net: ethMode # ethIpAddress # ethNetmask # ethGateway # ethdns1 # ethdns2);if (ethMode null || ethMode.equals(static)) {Inet4Address inetAddr getIPv4Address(ethIpAddress);int prefixLength maskStr2InetMask(ethNetmask);Inet4Address gatewayAddr getIPv4Address(ethGateway);Inet4Address dnsAddr1 getIPv4Address(ethdns1);Inet4Address dnsAddr2 getIPv4Address(ethdns2);if (inetAddr null || gatewayAddr null || prefixLength 0) {Log.e(TAG, ip, mask or dnsAddr is wrong-null);return;}if (inetAddr.getAddress().toString().isEmpty() || prefixLength 0 || gatewayAddr.toString().isEmpty()) {Log.e(TAG, ip,mask or dnsAddr is wrong-isEmpty);return;}ListInetAddress arrayList new ArrayList();if (dnsAddr1 ! null !dnsAddr1.toString().isEmpty()) {arrayList.add(dnsAddr1);}if (dnsAddr2 ! null !dnsAddr2.toString().isEmpty()) {arrayList.add(dnsAddr2);}mStaticIpConfiguration new StaticIpConfiguration.Builder().setIpAddress(new LinkAddress(inetAddr, prefixLength)).setGateway(gatewayAddr).setDnsServers(arrayList).build();mIpConfiguration new IpConfiguration();mIpConfiguration.setIpAssignment(IpAssignment.STATIC);mIpConfiguration.setProxySettings(IpConfiguration.ProxySettings.NONE);mIpConfiguration.setStaticIpConfiguration(mStaticIpConfiguration);mEthManager.setConfiguration(eth0, mIpConfiguration);}}
关于设置静态ip后,设备重启后失效. 怀疑是静态ip没有被保存在系统,然后重启后ip切换为动态. 然后查看日志,确实如此:E DelayedDiskWrite: Error writing data file...
08-13 02:53:24.929 713 876 I EthernetTracker: updateIpConfiguration, iface: eth0, cfg: IP assignment: STATIC
08-13 02:53:24.929 713 876 I EthernetTracker: Static configuration: IP address 192.168.1.254/24 Gateway 192.168.1.1 DNS servers: [ 192.168.1.1 ] Domains
08-13 02:53:24.929 713 876 I EthernetTracker: Proxy settings: NONE
08-13 02:53:24.932 713 2160 E DelayedDiskWrite: Error writing data file /data/misc/apexdata/com.android.tethering/misc/ethernet/ipconfig.txt
08-13 02:53:24.932 713 839 D EthernetNetworkFactory: updateInterface, iface: eth0, ipConfig: IP assignment: STATIC
08-13 02:53:24.932 713 839 D EthernetNetworkFactory: Static configuration: IP address 192.168.1.254/24 Gateway 192.168.1.1 DNS servers: [ 192.168.1.1 ] Domains
08-13 02:53:24.932 713 839 D EthernetNetworkFactory: Proxy settings: NONE
08-13 02:53:24.932 713 839 D EthernetNetworkFactory: , old ipConfig: IP assignment: DHCP
08-13 02:53:24.932 713 839 D EthernetNetworkFactory: Proxy settings: NONE
08-13 02:53:24.932 713 839 D EthernetNetworkFactory: , capabilities: null, old capabilities: [ Transports: ETHERNET Capabilities: NOT_METEREDINTERNETNOT_RESTRICTEDTRUSTEDNOT_VPNNOT_ROAMINGNOT_CONGESTEDNOT_SUSPENDEDNOT_VCN_MANAGED LinkUpBandwidth100000Kbps LinkDnBandwidth100000Kbps Specifier: EthernetNetworkSpecifier (eth0) UnderlyingNetworks: Null], listener: null
08-13 02:53:24.932 713 839 D EthernetNetworkFactory: reconnecting Ethernet
08-13 02:53:24.969 713 1219 D DhcpClient: doQuit
08-13 02:53:24.996 713 1219 D DhcpClient: DHCP Packet Handler stopped
08-13 02:53:24.997 713 1219 D DhcpClient: onQuitting
08-13 02:53:25.025 713 839 D EthernetNetworkFactory: Starting Ethernet IpClient(eth0)
08-13 02:53:25.025 713 840 D ConnectivityService: [100 ETHERNET] EVENT_NETWORK_INFO_CHANGED, going from CONNECTED to DISCONNECTED
08-13 02:53:25.025 713 840 D ConnectivityService: [100 ETHERNET] disconnected, was satisfying 17
08-13 02:53:25.030 713 839 I EthernetNetworkFactory: Ignoring stale IpClientCallbacks com.android.server.ethernet.EthernetNetworkFactory$NetworkInterfaceState$EthernetIpClientCallback1a9aff9
08-13 02:53:25.031 713 839 D EthernetNetworkAgent: NetworkAgent: NetworkAgent channel lost Android 13 有线以太网静态ip保存逻辑梳理分析
//1.0
EthernetManager mEthManager (EthernetManager)getSystemService(Context.ETHERNET_SERVICE);
mIpConfiguration new IpConfiguration();
....
mEthManager.setConfiguration(eth0, mIpConfiguration);//去设置静态IP//1.1
packages/modules/Connectivity/framework-t/src/android/net/EthernetManager.javapublic void setConfiguration(NonNull String iface, NonNull IpConfiguration config) {try {mService.setConfiguration(iface, config);} catch (RemoteException e) {throw e.rethrowFromSystemServer();}}//1.2
packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetServiceImpl.javaOverridepublic void setConfiguration(String iface, IpConfiguration config) {...// Fix this by making IpConfiguration a complete representation of static configuration.mTracker.updateIpConfiguration(iface, new IpConfiguration(config));}//1.3
packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetTracker.javavoid updateIpConfiguration(String iface, IpConfiguration ipConfiguration) {if (DBG) {Log.i(TAG, updateIpConfiguration, iface: iface , cfg: ipConfiguration);}writeIpConfiguration(iface, ipConfiguration);//写入IpConfiguration相关信息,主要和静态ip关联mHandler.post(() - {mFactory.updateInterface(iface, ipConfiguration, null, null);//更新ipConfigurationbroadcastInterfaceStateChange(iface);//发送通知,告诉系统网络接口改变});}private void writeIpConfiguration(NonNull final String iface,NonNull final IpConfiguration ipConfig) {mConfigStore.write(iface, ipConfig);mIpConfigurations.put(iface, ipConfig);}//1.4
packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetConfigStore.java private static final String CONFIG_FILE ipconfig.txt;private static final String FILE_PATH /misc/ethernet/;private static final String LEGACY_IP_CONFIG_FILE_PATH Environment.getDataDirectory() FILE_PATH;private static final String APEX_IP_CONFIG_FILE_PATH ApexEnvironment.getApexEnvironment(TETHERING_MODULE_NAME).getDeviceProtectedDataDir() FILE_PATH; private IpConfigStore mStore new IpConfigStore();//关于读 public void read() {read(APEX_IP_CONFIG_FILE_PATH, LEGACY_IP_CONFIG_FILE_PATH, CONFIG_FILE);}//关于写public void write(String iface, IpConfiguration config) {write(iface, config, APEX_IP_CONFIG_FILE_PATH CONFIG_FILE);}VisibleForTestingvoid write(String iface, IpConfiguration config, String filepath) {boolean modified;synchronized (mSync) {if (config null) {modified mIpConfigurations.remove(iface) ! null;} else {IpConfiguration oldConfig mIpConfigurations.put(iface, config);modified !config.equals(oldConfig);}if (modified) {mStore.writeIpConfigurations(filepath, mIpConfigurations);}}}//1.5
packages/modules/Connectivity/service-t/src/com/android/server/net/IpConfigStore.java//最后是这里写入VisibleForTestingpublic static boolean writeConfig(DataOutputStream out, String configKey,IpConfiguration config, int version) throws IOException {boolean written false;try {switch (config.getIpAssignment()) {case STATIC:out.writeUTF(IP_ASSIGNMENT_KEY);out.writeUTF(config.getIpAssignment().toString());StaticIpConfiguration staticIpConfiguration config.getStaticIpConfiguration();if (staticIpConfiguration ! null) {if (staticIpConfiguration.getIpAddress() ! null) {LinkAddress ipAddress staticIpConfiguration.getIpAddress();out.writeUTF(LINK_ADDRESS_KEY);out.writeUTF(ipAddress.getAddress().getHostAddress());out.writeInt(ipAddress.getPrefixLength());}if (staticIpConfiguration.getGateway() ! null) {out.writeUTF(GATEWAY_KEY);out.writeInt(0); // Default route.out.writeInt(1); // Have a gateway.out.writeUTF(staticIpConfiguration.getGateway().getHostAddress());}for (InetAddress inetAddr : staticIpConfiguration.getDnsServers()) {out.writeUTF(DNS_KEY);out.writeUTF(inetAddr.getHostAddress());}}written true;break;case DHCP:out.writeUTF(IP_ASSIGNMENT_KEY);out.writeUTF(config.getIpAssignment().toString());written true;break;case UNASSIGNED:/* Ignore */break;...} Android 12 之前 数据保存于/data/misc/ethernet/ipconfig.txt.
根据上面分析的流程,数据是要被写入/data/misc/apexdata/com.android.tethering/misc/ethernet/ipconfig.txt,但是日志报错,说明写入失败了. 一般文件写入失败的原因,大多数是权限问题,但是这个日志么有看到关于权限的信息,所以排除. AS(Android studio)或者adb查看设备是否有这个文件,发现都没有/misc/ethernet/这个目录,这可能就是导致无法写入的原因
xx:/ # ls -al /data/misc/apexdata/com.android.tethering/
total 9
drwxrwx--x 3 root system 3452 2024-08-13 08:47 .
drwx--x--x 27 root root 3452 2024-08-13 08:47 ..
drwx------ 2 system system 3452 2024-08-13 08:51 netstats所以创建一下这个目录,验证之后,解决问题,代码如下:
packages/modules/Connectivity/service-t/src/com/android/server/ethernet/EthernetConfigStore.java void write(String iface, IpConfiguration config, String filepath) {boolean modified;synchronized (mSync) {if (config null) {modified mIpConfigurations.remove(iface) ! null;} else {IpConfiguration oldConfig mIpConfigurations.put(iface, config);modified !config.equals(oldConfig);}if (modified) {//add textfinal File text_dir new File(APEX_IP_CONFIG_FILE_PATH);if(!text_dir.exists()){text_dir.mkdirs();}//add textmStore.writeIpConfigurations(filepath, mIpConfigurations);}}}Android T设置静态ip地址,如果设置错误的网关,有线网会一直断开重连.设置正常的网关不会出现. Android 13 设置静态ip导致有线网一直断开重连分析解决 RK3588 Android 12 Framework修改记录八Settings Ethernet以太网 多网卡设置静态IP
