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https://github.com/Divested-Mobile/DivestOS-Build.git
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202033c013
This adds 3 expat patches for n-asb-2022-09 from https://github.com/syphyr/android_external_expat/commits/cm-14.1 and also applies 2 of them to 15.1 Signed-off-by: Tad <tad@spotco.us>
80 lines
3.0 KiB
Diff
80 lines
3.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Alex Johnston <acjohnston@google.com>
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Date: Wed, 5 Jan 2022 22:19:29 +0000
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Subject: [PATCH] Add caller check to com.android.credentials.RESET [Backport]
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* Only the Settings app can reset credentials
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via com.android.credentials.RESET.
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* com.android.credentials.INSTALL should still be
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callable by CertInstaller.
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Manual testing steps:
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* Install certificate via Settings
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* Verify unable to reset certificates via test app
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provided in the bug (app-debug.apk)
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* Verify able to reset certificates via Settings
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* Verify com.android.credentials.INSTALL isn't changed
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Bug: 200164168
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Test: manual
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Change-Id: I9dfde586616d004befbee529f2ae842d22795065
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(cherry picked from commit 4c1272a921bb9037e17a01e1e5a0692f7f704c3d)
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Merged-In: I9dfde586616d004befbee529f2ae842d22795065
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(cherry picked from commit 35e3d0c1b0598b2032fc6c134c657255f1907594)
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Merged-In: I9dfde586616d004befbee529f2ae842d22795065
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---
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.../android/settings/CredentialStorage.java | 18 +++++++++++++++++-
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1 file changed, 17 insertions(+), 1 deletion(-)
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diff --git a/src/com/android/settings/CredentialStorage.java b/src/com/android/settings/CredentialStorage.java
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index eed380bae4..1c82bff713 100644
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--- a/src/com/android/settings/CredentialStorage.java
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+++ b/src/com/android/settings/CredentialStorage.java
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@@ -17,6 +17,7 @@
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package com.android.settings;
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import android.app.Activity;
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+import android.app.ActivityManagerNative;
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import android.app.AlertDialog;
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import android.app.admin.DevicePolicyManager;
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import android.content.Context;
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@@ -27,6 +28,7 @@ import android.content.pm.UserInfo;
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import android.content.res.Resources;
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import android.os.AsyncTask;
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import android.os.Bundle;
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+import android.os.IBinder;
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import android.os.Process;
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import android.os.RemoteException;
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import android.os.UserHandle;
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@@ -128,7 +130,7 @@ public final class CredentialStorage extends Activity {
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String action = intent.getAction();
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UserManager userManager = (UserManager) getSystemService(Context.USER_SERVICE);
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if (!userManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_CREDENTIALS)) {
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- if (ACTION_RESET.equals(action)) {
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+ if (ACTION_RESET.equals(action) && checkCallerIsSelf()) {
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new ResetDialog();
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} else {
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if (ACTION_INSTALL.equals(action) && checkCallerIsCertInstallerOrSelfInProfile()) {
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@@ -405,6 +407,20 @@ public final class CredentialStorage extends Activity {
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}
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}
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+ /**
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+ * Check that the caller is Settings.
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+ */
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+ private boolean checkCallerIsSelf() {
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+ try {
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+ IBinder activityToken = getActivityToken();
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+ return Process.myUid() == ActivityManagerNative.getDefault()
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+ .getLaunchedFromUid(activityToken);
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+ } catch (RemoteException re) {
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+ // Error talking to ActivityManager, just give up
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+ return false;
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+ }
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+ }
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+
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/**
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* Check that the caller is either certinstaller or Settings running in a profile of this user.
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*/
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