From 6b09916eb2443ff8016b2d05dc7b2ef42a02a7e2 Mon Sep 17 00:00:00 2001
From: Robert Greenwalt <rgreenwalt@google.com>
Date: Thu, 10 Mar 2011 16:58:31 -0800
Subject: [PATCH] DO NOT MERGE Backport of I1f55df8a from master.

Fixes false reporting of NO_CONNECTION.
bug:4057115

Change-Id: Ie11e81180276ac3aa486607ec3a8eb1088b2ece6
---
 .../com/android/server/ConnectivityService.java    | 67 ++++++----------------
 1 file changed, 17 insertions(+), 50 deletions(-)

diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 43aa32d11490..d37558f36498 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -1089,18 +1089,10 @@ public class ConnectivityService extends IConnectivityManager.Stub {
                     info.getExtraInfo());
         }
 
-        NetworkStateTracker newNet = null;
         if (mNetAttributes[prevNetType].isDefault()) {
-            newNet = tryFailover(prevNetType);
-            if (newNet != null) {
-                NetworkInfo switchTo = newNet.getNetworkInfo();
-                if (!switchTo.isConnected()) {
-                    // if the other net is connected they've already reset this and perhaps even gotten
-                    // a positive report we don't want to overwrite, but if not we need to clear this now
-                    // to turn our cellular sig strength white
-                    mDefaultInetConditionPublished = 0;
-                    intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true);
-                }
+            tryFailover(prevNetType);
+            if (mActiveDefaultNetwork != -1) {
+                NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo();
                 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo);
             } else {
                 mDefaultInetConditionPublished = 0; // we're not connected anymore
@@ -1116,25 +1108,21 @@ public class ConnectivityService extends IConnectivityManager.Stub {
          * If the failover network is already connected, then immediately send
          * out a followup broadcast indicating successful failover
          */
-        if (newNet != null && newNet.getNetworkInfo().isConnected()) {
-            sendConnectedBroadcast(newNet.getNetworkInfo());
+        if (mActiveDefaultNetwork != -1) {
+            sendConnectedBroadcast(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo());
         }
     }
 
-    // returns null if no failover available
-    private NetworkStateTracker tryFailover(int prevNetType) {
+    private void tryFailover(int prevNetType) {
         /*
          * If this is a default network, check if other defaults are available
          * or active
          */
-        NetworkStateTracker newNet = null;
         if (mNetAttributes[prevNetType].isDefault()) {
             if (mActiveDefaultNetwork == prevNetType) {
                 mActiveDefaultNetwork = -1;
             }
 
-            int newType = -1;
-            int newPriority = -1;
             boolean noMobileData = !getMobileDataEnabled();
             for (int checkType=0; checkType <= ConnectivityManager.MAX_NETWORK_TYPE; checkType++) {
                 if (checkType == prevNetType) continue;
@@ -1146,29 +1134,15 @@ public class ConnectivityService extends IConnectivityManager.Stub {
                             " because Mobile Data Disabled");
                     continue;
                 }
-                NetworkStateTracker tracker = mNetTrackers[checkType];
-                NetworkInfo info = tracker.getNetworkInfo();
-                if (!info.isConnectedOrConnecting() ||
-                        tracker.isTeardownRequested()) {
-                    info.setFailover(true);
-                    tracker.reconnect();
-                }
-                if (DBG) Slog.d(TAG, "Attempting to switch to " + info.getTypeName());
-
-                // figure out if this is the highest priority network
-                // so we send an appropriate return value
-                if (checkType == mNetworkPreference) {
-                    newType = checkType;
-                }
-                if (mNetAttributes[checkType].mPriority > newPriority &&
-                        newType != mNetworkPreference) {
-                    newType = checkType;
-                    newPriority = mNetAttributes[checkType].mPriority;
+                NetworkStateTracker checkTracker = mNetTrackers[checkType];
+                NetworkInfo checkInfo = checkTracker.getNetworkInfo();
+                if (!checkInfo.isConnectedOrConnecting() || checkTracker.isTeardownRequested()) {
+                    checkInfo.setFailover(true);
+                    checkTracker.reconnect();
                 }
+                if (DBG) Slog.d(TAG, "Attempting to switch to " + checkInfo.getTypeName());
             }
         }
-
-        return newNet;
     }
 
     private void sendConnectedBroadcast(NetworkInfo info) {
@@ -1231,17 +1205,10 @@ public class ConnectivityService extends IConnectivityManager.Stub {
             info.setFailover(false);
         }
 
-        NetworkStateTracker newNet = null;
         if (mNetAttributes[info.getType()].isDefault()) {
-            newNet = tryFailover(info.getType());
-            if (newNet != null) {
-                NetworkInfo switchTo = newNet.getNetworkInfo();
-                if (!switchTo.isConnected()) {
-                    // if the other net is connected they've already reset this and perhaps
-                    // even gotten a positive report we don't want to overwrite, but if not
-                    // we need to clear this now to turn our cellular sig strength white
-                    mDefaultInetConditionPublished = 0;
-                }
+            tryFailover(info.getType());
+            if (mActiveDefaultNetwork != -1) {
+                NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo();
                 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo);
             } else {
                 mDefaultInetConditionPublished = 0;
@@ -1255,8 +1222,8 @@ public class ConnectivityService extends IConnectivityManager.Stub {
          * If the failover network is already connected, then immediately send
          * out a followup broadcast indicating successful failover
          */
-        if (newNet != null && newNet.getNetworkInfo().isConnected()) {
-            sendConnectedBroadcast(newNet.getNetworkInfo());
+        if (mActiveDefaultNetwork != -1) {
+            sendConnectedBroadcast(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo());
         }
     }
 
-- 
2.11.0