mirror of
https://github.com/YTVanced/VancedMicroG
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104 lines
5.2 KiB
Diff
104 lines
5.2 KiB
Diff
From 7357f8c0c8a6bdc09555ab47dae83f28346b8470 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Beno=C3=AEt=20Mauduit?= <bmauduit@beneth.fr>
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Date: Wed, 22 Jun 2016 15:04:56 +0200
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Subject: [PATCH 1/1] Add signature Spoofing permission
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This is needed by GmsCore (https://microg.org/) to pretend
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the existence of the official Play Services to applications calling
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Google APIs.
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Signed-off-by: Benoît Mauduit <bmauduit@beneth.fr>
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---
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core/res/AndroidManifest.xml | 7 +++++++
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core/res/res/values/config.xml | 2 ++
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core/res/res/values/strings.xml | 5 +++++
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.../android/server/pm/PackageManagerService.java | 23 ++++++++++++++++++++--
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4 files changed, 35 insertions(+), 2 deletions(-)
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diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
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index ea0e39c..a936983 100644
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--- a/core/res/AndroidManifest.xml
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+++ b/core/res/AndroidManifest.xml
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@@ -1654,6 +1654,13 @@
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android:description="@string/permdesc_getPackageSize"
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android:protectionLevel="normal" />
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+ <!-- @hide Allows an application to change the package signature as
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+ seen by applications -->
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+ <permission android:name="android.permission.FAKE_PACKAGE_SIGNATURE"
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+ android:protectionLevel="dangerous"
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+ android:label="@string/permlab_fakePackageSignature"
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+ android:description="@string/permdesc_fakePackageSignature" />
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+
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<!-- @deprecated No longer useful, see
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{@link android.content.pm.PackageManager#addPackageToPreferred}
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for details. -->
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diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
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index c7846cf..916d8a5 100644
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--- a/core/res/res/values/config.xml
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+++ b/core/res/res/values/config.xml
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@@ -1298,6 +1298,8 @@
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<string-array name="config_locationProviderPackageNames" translatable="false">
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<!-- The standard AOSP fused location provider -->
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<item>com.android.location.fused</item>
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+ <!-- The (faked) microg fused location provider -->
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+ <item>com.google.android.gms</item>
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</string-array>
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<!-- This string array can be overriden to enable test location providers initially. -->
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diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
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index 58135db..e65367a 100644
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--- a/core/res/res/values/strings.xml
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+++ b/core/res/res/values/strings.xml
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@@ -616,6 +616,11 @@
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<!-- Permissions -->
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<!-- Title of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
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+ <string name="permlab_fakePackageSignature">Spoof package signature</string>
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+ <!-- Description of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
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+ <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>
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+
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+ <!-- Title of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
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<string name="permlab_statusBar">disable or modify status bar</string>
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<!-- Description of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
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<string name="permdesc_statusBar">Allows the app to disable the status bar or add and remove system icons.</string>
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diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
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index 0493180..35f49d7 100644
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--- a/services/core/java/com/android/server/pm/PackageManagerService.java
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+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
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@@ -2816,8 +2816,27 @@ public class PackageManagerService extends IPackageManager.Stub {
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final Set<String> permissions = permissionsState.getPermissions(userId);
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final PackageUserState state = ps.readUserState(userId);
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- return PackageParser.generatePackageInfo(p, gids, flags,
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- ps.firstInstallTime, ps.lastUpdateTime, permissions, state, userId);
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+ return mayFakeSignature(p, PackageParser.generatePackageInfo(p, gids, flags,
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+ ps.firstInstallTime, ps.lastUpdateTime, permissions, state, userId),
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+ permissions);
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+ }
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+
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+ private PackageInfo mayFakeSignature(PackageParser.Package p, PackageInfo pi,
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+ Set<String> permissions) {
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+ try {
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+ if (permissions.contains("android.permission.FAKE_PACKAGE_SIGNATURE")
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+ && p.applicationInfo.targetSdkVersion > Build.VERSION_CODES.LOLLIPOP_MR1
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+ && p.mAppMetaData != null) {
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+ String sig = p.mAppMetaData.getString("fake-signature");
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+ if (sig != null) {
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+ pi.signatures = new Signature[] {new Signature(sig)};
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+ }
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+ }
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+ } catch (Throwable t) {
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+ // We should never die because of any failures, this is system code!
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+ Log.w("PackageManagerService.FAKE_PACKAGE_SIGNATURE", t);
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+ }
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+ return pi;
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}
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@Override
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--
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2.8.1
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