mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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190 lines
7.4 KiB
Diff
190 lines
7.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Dmitry Muhomor <muhomor.dmitry@gmail.com>
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Date: Sun, 31 Jul 2022 18:10:28 +0300
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Subject: [PATCH] app-side infrastructure for special runtime permissions
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---
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core/api/system-current.txt | 3 ++
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.../android/content/pm/IPackageManager.aidl | 2 +
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.../pm/SpecialRuntimePermAppUtils.java | 54 +++++++++++++++++++
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.../server/pm/PackageManagerService.java | 19 +++++++
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.../permission/SpecialRuntimePermUtils.java | 46 ++++++++++++++++
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5 files changed, 124 insertions(+)
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create mode 100644 core/java/android/content/pm/SpecialRuntimePermAppUtils.java
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create mode 100644 services/core/java/com/android/server/pm/permission/SpecialRuntimePermUtils.java
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diff --git a/core/api/system-current.txt b/core/api/system-current.txt
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index 0126199add0c..531b03cd7c0c 100644
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--- a/core/api/system-current.txt
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+++ b/core/api/system-current.txt
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@@ -3546,6 +3546,9 @@ package android.content.pm {
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field @NonNull public static final android.os.Parcelable.Creator<android.content.pm.ShortcutManager.ShareShortcutInfo> CREATOR;
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}
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+ public class SpecialRuntimePermAppUtils {
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+ }
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+
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public final class SuspendDialogInfo implements android.os.Parcelable {
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method public int describeContents();
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method public void writeToParcel(android.os.Parcel, int);
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diff --git a/core/java/android/content/pm/IPackageManager.aidl b/core/java/android/content/pm/IPackageManager.aidl
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index 54d57a1b24d9..0e4ca05f3c1d 100644
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--- a/core/java/android/content/pm/IPackageManager.aidl
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+++ b/core/java/android/content/pm/IPackageManager.aidl
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@@ -803,4 +803,6 @@ interface IPackageManager {
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void setKeepUninstalledPackages(in List<String> packageList);
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boolean canPackageQuery(String sourcePackageName, String targetPackageName, int userId);
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+
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+ int getSpecialRuntimePermissionFlags(String packageName);
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}
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diff --git a/core/java/android/content/pm/SpecialRuntimePermAppUtils.java b/core/java/android/content/pm/SpecialRuntimePermAppUtils.java
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new file mode 100644
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index 000000000000..efd48cb49aa3
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--- /dev/null
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+++ b/core/java/android/content/pm/SpecialRuntimePermAppUtils.java
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@@ -0,0 +1,54 @@
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+/*
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+ * Copyright (C) 2022 GrapheneOS
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+ *
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+ * Licensed under the Apache License, Version 2.0 (the "License");
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+ * you may not use this file except in compliance with the License.
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+ * You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+
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+package android.content.pm;
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+
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+import android.Manifest;
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+import android.annotation.SystemApi;
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+import android.app.AppGlobals;
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+import android.os.Binder;
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+import android.os.Process;
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+import android.os.RemoteException;
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+import android.permission.PermissionManager;
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+
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+/** @hide */
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+@SystemApi
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+public class SpecialRuntimePermAppUtils {
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+ private static final int FLAG_INITED = 1;
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+
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+ private static volatile int cachedFlags;
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+
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+ private static int getFlags() {
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+ int cache = cachedFlags;
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+ if (cache != 0) {
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+ return cache;
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+ }
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+
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+ IPackageManager pm = AppGlobals.getPackageManager();
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+ String pkgName = AppGlobals.getInitialPackage();
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+
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+ final long token = Binder.clearCallingIdentity(); // in case this method is called in the system_server
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+ try {
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+ return (cachedFlags = pm.getSpecialRuntimePermissionFlags(pkgName) | FLAG_INITED);
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+ } catch (RemoteException e) {
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+ throw e.rethrowFromSystemServer();
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+ } finally {
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+ Binder.restoreCallingIdentity(token);
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+ }
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+ }
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+
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+ private SpecialRuntimePermAppUtils() {}
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+}
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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 35be1bf7e005..59c534ae07b7 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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@@ -214,6 +214,7 @@ import com.android.server.pm.permission.LegacyPermissionManagerInternal;
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import com.android.server.pm.permission.LegacyPermissionManagerService;
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import com.android.server.pm.permission.PermissionManagerService;
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import com.android.server.pm.permission.PermissionManagerServiceInternal;
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+import com.android.server.pm.permission.SpecialRuntimePermUtils;
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import com.android.server.pm.pkg.PackageStateInternal;
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import com.android.server.pm.pkg.PackageUserState;
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import com.android.server.pm.pkg.PackageUserStateInternal;
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@@ -6090,6 +6091,24 @@ public class PackageManagerService implements PackageSender, TestUtilityService
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getPerUidReadTimeouts(snapshot)
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).doDump(snapshot, fd, pw, args);
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}
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+
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+ @Override
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+ public int getSpecialRuntimePermissionFlags(String packageName) {
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+ final int callingUid = Binder.getCallingUid();
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+
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+ synchronized (mLock) {
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+ AndroidPackage pkg = mPackages.get(packageName);
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+ if (pkg == null) {
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+ throw new IllegalStateException();
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+ }
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+
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+ if (UserHandle.getAppId(callingUid) != pkg.getUid()) { // getUid() confusingly returns appId
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+ throw new SecurityException();
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+ }
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+
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+ return SpecialRuntimePermUtils.getFlags(pkg);
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+ }
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+ }
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}
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private class PackageManagerLocalImpl implements PackageManagerLocal {
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diff --git a/services/core/java/com/android/server/pm/permission/SpecialRuntimePermUtils.java b/services/core/java/com/android/server/pm/permission/SpecialRuntimePermUtils.java
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new file mode 100644
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index 000000000000..fe946ff5d5ca
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--- /dev/null
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+++ b/services/core/java/com/android/server/pm/permission/SpecialRuntimePermUtils.java
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@@ -0,0 +1,46 @@
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+/*
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+ * Copyright (C) 2022 GrapheneOS
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+ *
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+ * Licensed under the Apache License, Version 2.0 (the "License");
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+ * you may not use this file except in compliance with the License.
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+ * You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+
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+package com.android.server.pm.permission;
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+
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+import android.Manifest;
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+import android.os.Bundle;
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+
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+import com.android.internal.annotations.GuardedBy;
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+import com.android.server.pm.parsing.pkg.AndroidPackage;
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+import com.android.server.pm.pkg.component.ParsedUsesPermission;
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+
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+import static android.content.pm.SpecialRuntimePermAppUtils.*;
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+
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+public class SpecialRuntimePermUtils {
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+
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+ @GuardedBy("PackageManagerService.mLock")
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+ public static int getFlags(AndroidPackage pkg) {
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+ int flags = 0;
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+
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+ for (ParsedUsesPermission perm : pkg.getUsesPermissions()) {
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+ String name = perm.getName();
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+ switch (name) {
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+ default:
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+ continue;
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+ }
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+ }
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+
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+ return flags;
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+ }
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+
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+ private SpecialRuntimePermUtils() {}
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+}
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