From cdd5858e481fb0087c40c5997a9fa1446b326165 Mon Sep 17 00:00:00 2001
From: Wenchao Tong <tongwenchao@google.com>
Date: Wed, 18 Jun 2014 12:59:21 -0700
Subject: [PATCH] Changes in framework for WIFI_CREDENTIAL_CHANGE broadcast.
 [DO NOT MERGE]

* Only allow system app to send/receive
  WIFI_CREDENTIAL_CHANGE.
* Define constants in WifiManager.

Bug: 15703353
Change-Id: I4bcc6bc82ec01952500eef3965cf81116bba693d
(cherry picked from commit f4a43f196e1132968a8add60efa4ae4558f8b010)
---
 core/res/AndroidManifest.xml                | 14 ++++++++++++
 wifi/java/android/net/wifi/WifiManager.java | 25 ++++++++++++++++++++-
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 350660b95c80b..a7dba6607068a 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -235,6 +235,7 @@
     <protected-broadcast android:name="com.android.server.WifiManager.action.DELAYED_DRIVER_STOP" />
     <protected-broadcast android:name="android.net.wifi.WIFI_STATE_CHANGED" />
     <protected-broadcast android:name="android.net.wifi.WIFI_AP_STATE_CHANGED" />
+    <protected-broadcast android:name="android.net.wifi.WIFI_CREDENTIAL_CHANGED" />
     <protected-broadcast android:name="android.net.wifi.WIFI_SCAN_AVAILABLE" />
     <protected-broadcast android:name="android.net.wifi.SCAN_RESULTS" />
     <protected-broadcast android:name="android.net.wifi.RSSI_CHANGED" />
@@ -805,6 +806,19 @@
         android:description="@string/permdesc_changeWifiState"
         android:label="@string/permlab_changeWifiState" />
 
+    <!-- @SystemApi @hide Allows applications to read Wi-Fi credential.
+         <p>Not for use by third-party applications. -->
+    <permission android:name="android.permission.READ_WIFI_CREDENTIAL"
+        android:permissionGroup="android.permission-group.NETWORK"
+        android:protectionLevel="signature|system" />
+
+    <!-- @SystemApi @hide Allow system apps to receive broadcast
+         when a wifi network credential is changed.
+         <p>Not for use by third-party applications. -->
+    <permission android:name="android.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE"
+        android:permissionGroup="android.permission-group.NETWORK"
+        android:protectionLevel="signature|system" />
+
     <!-- @hide -->
     <permission android:name="android.permission.ACCESS_WIMAX_STATE"
         android:permissionGroup="android.permission-group.NETWORK"
diff --git a/wifi/java/android/net/wifi/WifiManager.java b/wifi/java/android/net/wifi/WifiManager.java
index cf4cb891c1e4a..7ad05ab3d24b3 100644
--- a/wifi/java/android/net/wifi/WifiManager.java
+++ b/wifi/java/android/net/wifi/WifiManager.java
@@ -18,6 +18,7 @@ package android.net.wifi;
 
 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
+import android.annotation.SystemApi;
 import android.content.Context;
 import android.net.DhcpInfo;
 import android.net.wifi.ScanSettings;
@@ -82,7 +83,29 @@ public class WifiManager {
      * Extra int indicating scan availability, WIFI_STATE_ENABLED and WIFI_STATE_DISABLED
      * @hide
      */
-     public static final String EXTRA_SCAN_AVAILABLE = "scan_enabled";
+    public static final String EXTRA_SCAN_AVAILABLE = "scan_enabled";
+
+    /**
+     * Broadcast intent action indicating that the credential of a Wi-Fi network
+     * has been changed. One extra provides the ssid of the network. Another
+     * extra provides the event type, whether the credential is saved or forgot.
+     * @hide
+     */
+    @SystemApi
+    public static final String WIFI_CREDENTIAL_CHANGED_ACTION =
+            "android.net.wifi.WIFI_CREDENTIAL_CHANGED";
+    /** @hide */
+    @SystemApi
+    public static final String EXTRA_WIFI_CREDENTIAL_EVENT_TYPE = "et";
+    /** @hide */
+    @SystemApi
+    public static final String EXTRA_WIFI_CREDENTIAL_SSID = "ssid";
+    /** @hide */
+    @SystemApi
+    public static final int WIFI_CREDENTIAL_SAVED = 0;
+    /** @hide */
+    @SystemApi
+    public static final int WIFI_CREDENTIAL_FORGOT = 1;
 
     /**
      * Broadcast intent action indicating that Wi-Fi has been enabled, disabled,