From 44cc4744705d41a1b9b5955c639d038fb43afb01 Mon Sep 17 00:00:00 2001
From: Robert Greenwalt <rgreenwalt@google.com>
Date: Fri, 20 May 2011 14:35:50 -0700
Subject: [PATCH] First pass tying into per-interface DNS cache

Change-Id: Iacce225d392786e37fa2dbf9647045fca0b70e64
---
 .../com/android/server/ConnectivityService.java  | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 555975fb0e..6cd3e9eb1a 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -38,6 +38,7 @@ import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
+import android.os.INetworkManagementService;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.SystemProperties;
@@ -111,6 +112,9 @@ public class ConnectivityService extends IConnectivityManager.Stub {
 
     private boolean mTestMode;
     private static ConnectivityService sServiceInstance;
+
+    private INetworkManagementService mNetd;
+
     private static final int ENABLED  = 1;
     private static final int DISABLED = 0;
 
@@ -1278,6 +1282,9 @@ public class ConnectivityService extends IConnectivityManager.Stub {
     }
 
     void systemReady() {
+        IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
+        mNetd = INetworkManagementService.Stub.asInterface(b);
+
         synchronized(this) {
             mSystemReady = true;
             if (mInitialBroadcast != null) {
@@ -1470,6 +1477,11 @@ public class ConnectivityService extends IConnectivityManager.Stub {
         NetworkStateTracker nt = mNetTrackers[netType];
         if (nt != null && nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) {
             String[] dnsList = nt.getNameServers();
+            try {
+                mNetd.setDnsServersForInterface(Integer.toString(netType), dnsList);
+            } catch (Exception e) {
+                Slog.e(TAG, "exception setting dns servers: " + e);
+            }
             if (mNetAttributes[netType].isDefault()) {
                 int j = 1;
                 for (String dns : dnsList) {
@@ -1481,6 +1493,10 @@ public class ConnectivityService extends IConnectivityManager.Stub {
                         SystemProperties.set("net.dns" + j++, dns);
                     }
                 }
+                try {
+                    mNetd.setDefaultInterfaceForDns(Integer.toString(netType));
+                } catch (Exception e) {
+                    Slog.e(TAG, "exception setting default dns interface: " + e);}
                 for (int k=j ; k<mNumDnsEntries; k++) {
                     if (DBG) Slog.d(TAG, "erasing net.dns" + k);
                     SystemProperties.set("net.dns" + k, "");