+From 7357f8c0c8a6bdc09555ab47dae83f28346b8470 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Beno=C3=AEt=20Mauduit?= <bmauduit@beneth.fr>
+Date: Wed, 22 Jun 2016 15:04:56 +0200
+Subject: [PATCH 1/1] Add signature Spoofing permission
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This is needed by GmsCore (https://microg.org/) to pretend
+the existence of the official Play Services to applications calling
+Google APIs.
+
+Signed-off-by: Benoît Mauduit <bmauduit@beneth.fr>
+---
+ core/res/AndroidManifest.xml                       |  7 +++++++
+ core/res/res/values/config.xml                     |  2 ++
+ core/res/res/values/strings.xml                    |  5 +++++
+ .../android/server/pm/PackageManagerService.java   | 23 ++++++++++++++++++++--
+ 4 files changed, 35 insertions(+), 2 deletions(-)
+
 diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
-index 08bccc1..45b0094 100644
+index ea0e39c..a936983 100644
 --- a/core/res/AndroidManifest.xml
 +++ b/core/res/AndroidManifest.xml
-@@ -1622,6 +1622,13 @@
-         android:label="@string/permlab_getPackageSize"
+@@ -1654,6 +1654,13 @@
          android:description="@string/permdesc_getPackageSize"
          android:protectionLevel="normal" />
-+    
+ 
 +    <!-- @hide Allows an application to change the package signature as
 +         seen by applications -->
 +    <permission android:name="android.permission.FAKE_PACKAGE_SIGNATURE"
 +        android:protectionLevel="dangerous"
 +        android:label="@string/permlab_fakePackageSignature"
 +        android:description="@string/permdesc_fakePackageSignature" />
- 
++
      <!-- @deprecated No longer useful, see
           {@link android.content.pm.PackageManager#addPackageToPreferred}
+          for details. -->
 diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
-index 6c96f84..c391f30 100644
+index c7846cf..916d8a5 100644
 --- a/core/res/res/values/config.xml
 +++ b/core/res/res/values/config.xml
-@@ -1176,6 +1176,8 @@
+@@ -1298,6 +1298,8 @@
      <string-array name="config_locationProviderPackageNames" translatable="false">
          <!-- The standard AOSP fused location provider -->
          <item>com.android.location.fused</item>

 
     <!-- This string array can be overriden to enable test location providers initially. -->
diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 8a9b9cf..cd7ec0d 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -615,6 +615,11 @@
 
     <!--  Permissions -->
 
+   <!-- Title of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
+    <string name="permlab_fakePackageSignature">Spoof package signature</string>
+    <!-- Description of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
+    <string name="permdesc_fakePackageSignature">Allows the app to pretend to be a different app. Malicious applications might be able to use this to access private application data. Grant this permission with caution only!</string>
+
     <!-- Title of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
     <string name="permlab_statusBar">disable or modify status bar</string>
     <!-- Description of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index c1d091b..8195e32 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -2653,8 +2653,27 @@ public class PackageManagerService extends IPackageManager.Stub {
         final Set<String> permissions = permissionsState.getPermissions(userId);
         final PackageUserState state = ps.readUserState(userId);
 

+            Log.w("PackageManagerService.FAKE_PACKAGE_SIGNATURE", t);
+        }
+        return pi;
     }
 
     @Override
-- 
2.8.1

