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DivestOS/Patches/LineageOS-17.1/android_frameworks_base/399077.patch

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From c2cf66ca1d5a676a8b29049c54c5117f1e2a5c72 Mon Sep 17 00:00:00 2001
From: Valentin Iftime <valiiftime@google.com>
Date: Thu, 22 Feb 2024 10:51:58 +0100
Subject: [PATCH] Check for NLS bind permission when rebinding services
Also, after updating packages with NLS components, check
the approved services and remove from approved list if missing permissions.
Test: atest ManagedServicesTest
Bug: 321707289
(cherry picked from commit 24b13a64f9f5e5aa7f45a2132806d6c74e2c62dc)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0c15cdfdd4720efb72c3244a044bb27e2c286c4b)
Merged-In: I11901755ec430c6e3145def9d67e4e63cda00806
Change-Id: I11901755ec430c6e3145def9d67e4e63cda00806
---
.../server/notification/ManagedServices.java | 108 ++++++++++++++----
.../notification/ManagedServicesTest.java | 54 +++++++++
2 files changed, 139 insertions(+), 23 deletions(-)
diff --git a/services/core/java/com/android/server/notification/ManagedServices.java b/services/core/java/com/android/server/notification/ManagedServices.java
index 4828bbfff6762..2d9cfcb3ebb52 100644
--- a/services/core/java/com/android/server/notification/ManagedServices.java
+++ b/services/core/java/com/android/server/notification/ManagedServices.java
@@ -141,7 +141,9 @@ abstract public class ManagedServices {
// List of approved packages or components (by user, then by primary/secondary) that are
// allowed to be bound as managed services. A package or component appearing in this list does
// not mean that we are currently bound to said package/component.
- private ArrayMap<Integer, ArrayMap<Boolean, ArraySet<String>>> mApproved = new ArrayMap<>();
+ @GuardedBy("mApproved")
+ protected final ArrayMap<Integer, ArrayMap<Boolean, ArraySet<String>>> mApproved =
+ new ArrayMap<>();
// True if approved services are stored in xml, not settings.
private boolean mUseXml;
@@ -573,6 +575,23 @@ protected boolean isPackageOrComponentAllowed(String pkgOrComponent, int userId)
return false;
}
+ protected boolean isPackageOrComponentAllowedWithPermission(ComponentName component,
+ int userId) {
+ if (!(isPackageOrComponentAllowed(component.flattenToString(), userId)
+ || isPackageOrComponentAllowed(component.getPackageName(), userId))) {
+ return false;
+ }
+ return componentHasBindPermission(component, userId);
+ }
+
+ private boolean componentHasBindPermission(ComponentName component, int userId) {
+ ServiceInfo info = getServiceInfo(component, userId);
+ if (info == null) {
+ return false;
+ }
+ return mConfig.bindPermission.equals(info.permission);
+ }
+
protected boolean isPackageAllowed(String pkg, int userId) {
if (pkg == null) {
return false;
@@ -623,6 +642,7 @@ public void onPackagesChanged(boolean removingPackage, String[] pkgList, int[] u
for (int uid : uidList) {
if (isPackageAllowed(pkgName, UserHandle.getUserId(uid))) {
anyServicesInvolved = true;
+ trimApprovedListsForInvalidServices(pkgName, UserHandle.getUserId(uid));
}
}
}
@@ -749,8 +769,7 @@ protected void setComponentState(ComponentName component, boolean enabled) {
for (int i = 0; i < userIds.size(); i++) {
final int userId = userIds.get(i);
if (enabled) {
- if (isPackageOrComponentAllowed(component.flattenToString(), userId)
- || isPackageOrComponentAllowed(component.getPackageName(), userId)) {
+ if (isPackageOrComponentAllowedWithPermission(component, userId)) {
registerServiceLocked(component, userId);
} else {
Slog.d(TAG, component + " no longer has permission to be bound");
@@ -889,6 +908,33 @@ private boolean removeUninstalledItemsFromApprovedLists(int uninstalledUserId, S
return removed;
}
+ private void trimApprovedListsForInvalidServices(String packageName, int userId) {
+ synchronized (mApproved) {
+ final ArrayMap<Boolean, ArraySet<String>> approvedByType = mApproved.get(userId);
+ if (approvedByType == null) {
+ return;
+ }
+ for (int i = 0; i < approvedByType.size(); i++) {
+ final ArraySet<String> approved = approvedByType.valueAt(i);
+ for (int j = approved.size() - 1; j >= 0; j--) {
+ final String approvedPackageOrComponent = approved.valueAt(j);
+ if (TextUtils.equals(getPackageName(approvedPackageOrComponent), packageName)) {
+ final ComponentName component = ComponentName.unflattenFromString(
+ approvedPackageOrComponent);
+ if (component != null && !componentHasBindPermission(component, userId)) {
+ approved.removeAt(j);
+ if (DEBUG) {
+ Slog.v(TAG, "Removing " + approvedPackageOrComponent
+ + " from approved list; no bind permission found "
+ + mConfig.bindPermission);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
protected String getPackageName(String packageOrComponent) {
final ComponentName component = ComponentName.unflattenFromString(packageOrComponent);
if (component != null) {
@@ -1048,26 +1094,20 @@ private void bindToServices(SparseArray<Set<ComponentName>> componentsToBind) {
final int userId = componentsToBind.keyAt(i);
final Set<ComponentName> add = componentsToBind.get(userId);
for (ComponentName component : add) {
- try {
- ServiceInfo info = mPm.getServiceInfo(component,
- PackageManager.MATCH_DIRECT_BOOT_AWARE
- | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userId);
- if (info == null) {
- Slog.w(TAG, "Not binding " + getCaption() + " service " + component
- + ": service not found");
- continue;
- }
- if (!mConfig.bindPermission.equals(info.permission)) {
- Slog.w(TAG, "Not binding " + getCaption() + " service " + component
- + ": it does not require the permission " + mConfig.bindPermission);
- continue;
- }
- Slog.v(TAG,
- "enabling " + getCaption() + " for " + userId + ": " + component);
- registerService(component, userId);
- } catch (RemoteException e) {
- e.rethrowFromSystemServer();
+ ServiceInfo info = getServiceInfo(component, userId);
+ if (info == null) {
+ Slog.w(TAG, "Not binding " + getCaption() + " service " + component
+ + ": service not found");
+ continue;
}
+ if (!mConfig.bindPermission.equals(info.permission)) {
+ Slog.w(TAG, "Not binding " + getCaption() + " service " + component
+ + ": it does not require the permission " + mConfig.bindPermission);
+ continue;
+ }
+ Slog.v(TAG,
+ "enabling " + getCaption() + " for " + userId + ": " + component);
+ registerService(component, userId);
}
}
}
@@ -1081,6 +1121,15 @@ private void registerService(final ComponentName name, final int userid) {
}
}
+ @VisibleForTesting
+ void reregisterService(final ComponentName cn, final int userId) {
+ // If rebinding a package that died, ensure it still has permission
+ // after the rebind delay
+ if (isPackageOrComponentAllowedWithPermission(cn, userId)) {
+ registerService(cn, userId);
+ }
+ }
+
/**
* Inject a system service into the management list.
*/
@@ -1181,7 +1230,7 @@ public void onBindingDied(ComponentName name) {
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
- registerService(name, userid);
+ reregisterService(name, userid);
}
}, ON_BINDING_DIED_REBIND_DELAY_MS);
} else {
@@ -1313,6 +1362,19 @@ private void unbindService(ServiceConnection connection, ComponentName component
}
}
+ private ServiceInfo getServiceInfo(ComponentName component, int userId) {
+ try {
+ return mPm.getServiceInfo(component,
+ PackageManager.GET_META_DATA
+ | PackageManager.MATCH_DIRECT_BOOT_AWARE
+ | PackageManager.MATCH_DIRECT_BOOT_UNAWARE,
+ userId);
+ } catch (RemoteException e) {
+ e.rethrowFromSystemServer();
+ }
+ return null;
+ }
+
public class ManagedServiceInfo implements IBinder.DeathRecipient {
public IInterface service;
public ComponentName component;
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/ManagedServicesTest.java b/services/tests/uiservicestests/src/com/android/server/notification/ManagedServicesTest.java
index 8aaf29a110332..cac620f409f32 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/ManagedServicesTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/ManagedServicesTest.java
@@ -28,8 +28,10 @@
import static org.mockito.Matchers.anyInt;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@@ -624,6 +626,58 @@ public void testUpgradeAppBindsNewServices() throws Exception {
}
}
+ @Test
+ public void testUpgradeAppNoPermissionNoRebind() throws Exception {
+ Context context = spy(getContext());
+ doReturn(true).when(context).bindServiceAsUser(any(), any(), anyInt(), any());
+
+ ManagedServices service = new TestManagedServices(context, mLock, mUserProfiles,
+ mIpm,
+ APPROVAL_BY_COMPONENT);
+
+ List<String> packages = new ArrayList<>();
+ packages.add("package");
+ addExpectedServices(service, packages, 0);
+
+ final ComponentName unapprovedComponent = ComponentName.unflattenFromString("package/C1");
+ final ComponentName approvedComponent = ComponentName.unflattenFromString("package/C2");
+
+ // Both components are approved initially
+ mExpectedPrimaryComponentNames.clear();
+ mExpectedPrimaryPackages.clear();
+ mExpectedPrimaryComponentNames.put(0, "package/C1:package/C2");
+ mExpectedSecondaryComponentNames.clear();
+ mExpectedSecondaryPackages.clear();
+
+ loadXml(service);
+
+ //Component package/C1 loses bind permission
+ when(mIpm.getServiceInfo(any(), anyInt(), anyInt())).thenAnswer(
+ (Answer<ServiceInfo>) invocation -> {
+ ComponentName invocationCn = invocation.getArgument(0);
+ if (invocationCn != null) {
+ ServiceInfo serviceInfo = new ServiceInfo();
+ serviceInfo.packageName = invocationCn.getPackageName();
+ serviceInfo.name = invocationCn.getClassName();
+ if (invocationCn.equals(unapprovedComponent)) {
+ serviceInfo.permission = "none";
+ } else {
+ serviceInfo.permission = service.getConfig().bindPermission;
+ }
+ serviceInfo.metaData = null;
+ return serviceInfo;
+ }
+ return null;
+ }
+ );
+
+ // Trigger package update
+ service.onPackagesChanged(false, new String[]{"package"}, new int[]{0});
+
+ assertFalse(service.isComponentEnabledForCurrentProfiles(unapprovedComponent));
+ assertTrue(service.isComponentEnabledForCurrentProfiles(approvedComponent));
+ }
+
@Test
public void testSetPackageOrComponentEnabled() throws Exception {
for (int approvalLevel : new int[] {APPROVAL_BY_COMPONENT, APPROVAL_BY_PACKAGE}) {
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