[RK3399][Android7.1.1]Ethernet-网路状态变化时无法更新IP的问题

测试平台

Platform: RK3399
OS: Android 7.1.1

现象

机器通过交换机连接路由器，当路由器断电或者断开和交换机的连接时，机器的IP地址无法及时更新的问题.

分析

Android7.1.1使用IpReachabilityMonitor来监视链路IP的可达性,无论任何时候，一旦所关注的链路地址变的不响应时，就会通知调用者，所以我们在这里进行处理。

解决方案

diff --git a/frameworks/opt/net/ethernet/java/com/android/server/ethernet/EthernetNetworkFactory.java b/frameworks/opt/net/ethernet/java/com/android/server/ethernet/EthernetNetworkFactory.java

index d6050aa..6d4c3e9 100755 (executable)

--- a/frameworks/opt/net/ethernet/java/com/android/server/ethernet/EthernetNetworkFactory.java
+++ b/frameworks/opt/net/ethernet/java/com/android/server/ethernet/EthernetNetworkFactory.java
@@ -495,6 +495,8 @@ class EthernetNetworkFactory {
@Override
public void onLinkPropertiesChange(LinkProperties newLp) {
Log.d(TAG, "onLinkPropertiesChange: lp = " + newLp);
+
synchronized(EthernetNetworkFactory.this) {
if (mNetworkAgent != null && mNetworkInfo.isConnected()) {
mLinkProperties = newLp;
@@ -502,6 +504,15 @@ class EthernetNetworkFactory {
}
}
}
+
+                        @Override
+                        public void onProvisioningFailure(LinkProperties newLp) {
+                            Log.d("sjfn", "onProvisioningFailure: lp = " + newLp);
+                            synchronized(EthernetNetworkFactory.this) {
+                                setInterfaceDown();
+                                setInterfaceUp();
+                            }
+                        }
};

diff --git a/frameworks/base/services/net/java/android/net/ip/IpManager.java b/frameworks/base/services/net/java/android/net/ip/IpManager.java

index 35d2870..53e91e2 100755 (executable)

--- a/frameworks/base/services/net/java/android/net/ip/IpManager.java
+++ b/frameworks/base/services/net/java/android/net/ip/IpManager.java
@@ -1048,7 +1051,10 @@ public class IpManager extends StateMachine {
new IpReachabilityMonitor.Callback() {
@Override
public void notifyLost(InetAddress ip, String logMsg) {
mCallback.onReachabilityLost(logMsg);
+                            Log.v("sjfn","mInterfaceName:"+mInterfaceName+",mClatInterfaceName:"+mClatInterfaceName);
+                            stopAllIP();
}
},
mAvoidBadWifiTracker);