Merge "Tighten test for warm sim and add more debug." into klp-dev
diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 43d6b71..b4d07a1 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -66,6 +66,7 @@
     private String mDomains;
     private Collection<RouteInfo> mRoutes = new ArrayList<RouteInfo>();
     private ProxyProperties mHttpProxy;
+    private int mMtu;
 
     // Stores the properties of links that are "stacked" above this link.
     // Indexed by interface name to allow modification and to prevent duplicates being added.
@@ -104,6 +105,7 @@
             for (LinkProperties l: source.mStackedLinks.values()) {
                 addStackedLink(l);
             }
+            setMtu(source.getMtu());
         }
     }
 
@@ -223,6 +225,14 @@
         mDomains = domains;
     }
 
+    public void setMtu(int mtu) {
+        mMtu = mtu;
+    }
+
+    public int getMtu() {
+        return mMtu;
+    }
+
     private RouteInfo routeWithInterface(RouteInfo route) {
         return new RouteInfo(
             route.getDestination(),
@@ -322,6 +332,7 @@
         mRoutes.clear();
         mHttpProxy = null;
         mStackedLinks.clear();
+        mMtu = 0;
     }
 
     /**
@@ -346,6 +357,8 @@
 
         String domainName = "Domains: " + mDomains;
 
+        String mtu = "MTU: " + mMtu;
+
         String routes = " Routes: [";
         for (RouteInfo route : mRoutes) routes += route.toString() + ",";
         routes += "] ";
@@ -359,7 +372,8 @@
             }
             stacked += "] ";
         }
-        return "{" + ifaceName + linkAddresses + routes + dns + domainName + proxy + stacked + "}";
+        return "{" + ifaceName + linkAddresses + routes + dns + domainName + mtu
+            + proxy + stacked + "}";
     }
 
     /**
@@ -474,6 +488,16 @@
         return true;
     }
 
+    /**
+     * Compares this {@code LinkProperties} MTU against the target
+     *
+     * @param target LinkProperties to compare.
+     * @return {@code true} if both are identical, {@code false} otherwise.
+     */
+    public boolean isIdenticalMtu(LinkProperties target) {
+        return getMtu() == target.getMtu();
+    }
+
     @Override
     /**
      * Compares this {@code LinkProperties} instance against the target
@@ -505,7 +529,8 @@
                 isIdenticalDnses(target) &&
                 isIdenticalRoutes(target) &&
                 isIdenticalHttpProxy(target) &&
-                isIdenticalStackedLinks(target);
+                isIdenticalStackedLinks(target) &&
+                isIdenticalMtu(target);
     }
 
     /**
@@ -607,7 +632,8 @@
                 + ((null == mDomains) ? 0 : mDomains.hashCode())
                 + mRoutes.size() * 41
                 + ((null == mHttpProxy) ? 0 : mHttpProxy.hashCode())
-                + mStackedLinks.hashCode() * 47);
+                + mStackedLinks.hashCode() * 47)
+                + mMtu * 51;
     }
 
     /**
@@ -625,7 +651,7 @@
             dest.writeByteArray(d.getAddress());
         }
         dest.writeString(mDomains);
-
+        dest.writeInt(mMtu);
         dest.writeInt(mRoutes.size());
         for(RouteInfo route : mRoutes) {
             dest.writeParcelable(route, flags);
@@ -664,6 +690,7 @@
                     } catch (UnknownHostException e) { }
                 }
                 netProp.setDomains(in.readString());
+                netProp.setMtu(in.readInt());
                 addressCount = in.readInt();
                 for (int i=0; i<addressCount; i++) {
                     netProp.addRoute((RouteInfo)in.readParcelable(null));
diff --git a/core/tests/coretests/src/android/net/LinkPropertiesTest.java b/core/tests/coretests/src/android/net/LinkPropertiesTest.java
index 7e70c6b..e63f6b0 100644
--- a/core/tests/coretests/src/android/net/LinkPropertiesTest.java
+++ b/core/tests/coretests/src/android/net/LinkPropertiesTest.java
@@ -33,6 +33,7 @@
     private static InetAddress GATEWAY1 = NetworkUtils.numericToInetAddress("75.208.8.1");
     private static InetAddress GATEWAY2 = NetworkUtils.numericToInetAddress("69.78.8.1");
     private static String NAME = "qmi0";
+    private static int MTU = 1500;
 
     private static LinkAddress LINKADDRV4 = new LinkAddress(ADDRV4, 32);
     private static LinkAddress LINKADDRV6 = new LinkAddress(ADDRV6, 128);
@@ -57,6 +58,9 @@
         assertTrue(source.isIdenticalStackedLinks(target));
         assertTrue(target.isIdenticalStackedLinks(source));
 
+        assertTrue(source.isIdenticalMtu(target));
+        assertTrue(target.isIdenticalMtu(source));
+
         // Check result of equals().
         assertTrue(source.equals(target));
         assertTrue(target.equals(source));
@@ -88,6 +92,7 @@
             // set 2 gateways
             source.addRoute(new RouteInfo(GATEWAY1));
             source.addRoute(new RouteInfo(GATEWAY2));
+            source.setMtu(MTU);
 
             LinkProperties target = new LinkProperties();
 
@@ -99,6 +104,7 @@
             target.addDns(DNS2);
             target.addRoute(new RouteInfo(GATEWAY1));
             target.addRoute(new RouteInfo(GATEWAY2));
+            target.setMtu(MTU);
 
             assertLinkPropertiesEqual(source, target);
 
@@ -111,6 +117,7 @@
             target.addDns(DNS2);
             target.addRoute(new RouteInfo(GATEWAY1));
             target.addRoute(new RouteInfo(GATEWAY2));
+            target.setMtu(MTU);
             assertFalse(source.equals(target));
 
             target.clear();
@@ -123,6 +130,7 @@
             target.addDns(DNS2);
             target.addRoute(new RouteInfo(GATEWAY1));
             target.addRoute(new RouteInfo(GATEWAY2));
+            target.setMtu(MTU);
             assertFalse(source.equals(target));
 
             target.clear();
@@ -134,6 +142,7 @@
             target.addDns(DNS2);
             target.addRoute(new RouteInfo(GATEWAY1));
             target.addRoute(new RouteInfo(GATEWAY2));
+            target.setMtu(MTU);
             assertFalse(source.equals(target));
 
             target.clear();
@@ -145,6 +154,19 @@
             // change gateway
             target.addRoute(new RouteInfo(NetworkUtils.numericToInetAddress("75.208.8.2")));
             target.addRoute(new RouteInfo(GATEWAY2));
+            target.setMtu(MTU);
+            assertFalse(source.equals(target));
+
+            target.clear();
+            target.setInterfaceName(NAME);
+            target.addLinkAddress(LINKADDRV4);
+            target.addLinkAddress(LINKADDRV6);
+            target.addDns(DNS1);
+            target.addDns(DNS2);
+            target.addRoute(new RouteInfo(GATEWAY1));
+            target.addRoute(new RouteInfo(GATEWAY2));
+            // change mtu
+            target.setMtu(1440);
             assertFalse(source.equals(target));
 
         } catch (Exception e) {
@@ -167,6 +189,7 @@
             // set 2 gateways
             source.addRoute(new RouteInfo(GATEWAY1));
             source.addRoute(new RouteInfo(GATEWAY2));
+            source.setMtu(MTU);
 
             LinkProperties target = new LinkProperties();
             // Exchange order
@@ -177,6 +200,7 @@
             target.addDns(DNS1);
             target.addRoute(new RouteInfo(GATEWAY2));
             target.addRoute(new RouteInfo(GATEWAY1));
+            target.setMtu(MTU);
 
             assertLinkPropertiesEqual(source, target);
         } catch (Exception e) {
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 759dce7..02a78de 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -184,7 +184,7 @@
     private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED =
             "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED";
 
-    private static final int SAMPLE_INTERVAL_ELAPSED_REQURST_CODE = 0;
+    private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0;
 
     private PendingIntent mSampleIntervalElapsedIntent;
 
@@ -661,7 +661,7 @@
         // start network sampling ..
         Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED, null);
         mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext,
-                SAMPLE_INTERVAL_ELAPSED_REQURST_CODE, intent, 0);
+                SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0);
 
         mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE);
         setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent);
@@ -2299,6 +2299,7 @@
         }
         thisNet.setTeardownRequested(false);
         updateNetworkSettings(thisNet);
+        updateMtuSizeSettings(thisNet);
         handleConnectivityChange(newNetType, false);
         sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay());
 
@@ -2636,6 +2637,26 @@
         return routesChanged;
     }
 
+   /**
+     * Reads the network specific MTU size from reources.
+     * and set it on it's iface.
+     */
+   private void updateMtuSizeSettings(NetworkStateTracker nt) {
+       final String iface = nt.getLinkProperties().getInterfaceName();
+       final int mtu = nt.getLinkProperties().getMtu();
+
+       if (mtu < 68 || mtu > 10000) {
+           loge("Unexpected mtu value: " + nt);
+           return;
+       }
+
+       try {
+           if (VDBG) log("Setting MTU size: " + iface + ", " + mtu);
+           mNetd.setMtu(iface, mtu);
+       } catch (Exception e) {
+           Slog.e(TAG, "exception in setMtu()" + e);
+       }
+   }
 
     /**
      * Reads the network specific TCP buffer sizes from SystemProperties
@@ -3017,7 +3038,7 @@
         public void handleMessage(Message msg) {
             NetworkInfo info;
             switch (msg.what) {
-                case EVENT_CLEAR_NET_TRANSITION_WAKELOCK:
+                case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: {
                     String causedBy = null;
                     synchronized (ConnectivityService.this) {
                         if (msg.arg1 == mNetTransitionWakeLockSerialNumber &&
@@ -3030,49 +3051,44 @@
                         log("NetTransition Wakelock for " + causedBy + " released by timeout");
                     }
                     break;
-                case EVENT_RESTORE_DEFAULT_NETWORK:
+                }
+                case EVENT_RESTORE_DEFAULT_NETWORK: {
                     FeatureUser u = (FeatureUser)msg.obj;
                     u.expire();
                     break;
-                case EVENT_INET_CONDITION_CHANGE:
-                {
+                }
+                case EVENT_INET_CONDITION_CHANGE: {
                     int netType = msg.arg1;
                     int condition = msg.arg2;
                     handleInetConditionChange(netType, condition);
                     break;
                 }
-                case EVENT_INET_CONDITION_HOLD_END:
-                {
+                case EVENT_INET_CONDITION_HOLD_END: {
                     int netType = msg.arg1;
                     int sequence = msg.arg2;
                     handleInetConditionHoldEnd(netType, sequence);
                     break;
                 }
-                case EVENT_SET_NETWORK_PREFERENCE:
-                {
+                case EVENT_SET_NETWORK_PREFERENCE: {
                     int preference = msg.arg1;
                     handleSetNetworkPreference(preference);
                     break;
                 }
-                case EVENT_SET_MOBILE_DATA:
-                {
+                case EVENT_SET_MOBILE_DATA: {
                     boolean enabled = (msg.arg1 == ENABLED);
                     handleSetMobileData(enabled);
                     break;
                 }
-                case EVENT_APPLY_GLOBAL_HTTP_PROXY:
-                {
+                case EVENT_APPLY_GLOBAL_HTTP_PROXY: {
                     handleDeprecatedGlobalHttpProxy();
                     break;
                 }
-                case EVENT_SET_DEPENDENCY_MET:
-                {
+                case EVENT_SET_DEPENDENCY_MET: {
                     boolean met = (msg.arg1 == ENABLED);
                     handleSetDependencyMet(msg.arg2, met);
                     break;
                 }
-                case EVENT_SEND_STICKY_BROADCAST_INTENT:
-                {
+                case EVENT_SEND_STICKY_BROADCAST_INTENT: {
                     Intent intent = (Intent)msg.obj;
                     sendStickyBroadcast(intent);
                     break;
@@ -3101,10 +3117,12 @@
                         log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1
                                 + " != tag:" + tag);
                     }
+                    break;
                 }
-                case EVENT_SAMPLE_INTERVAL_ELAPSED:
+                case EVENT_SAMPLE_INTERVAL_ELAPSED: {
                     handleNetworkSamplingTimeout();
                     break;
+                }
             }
         }
     }
@@ -4789,4 +4807,3 @@
         mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, wakeupTime, intent);
     }
 }
-