Whitelist packages from VPN lockdown.
Bug: 77468593
Test: atest com.android.server.connectivity.VpnTest
Change-Id: I9119c139ab07a761ce5dfd1365b70eb905fd32dc
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index 5bb24ba..3bae12e 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -1014,20 +1014,54 @@
* to remove an existing always-on VPN configuration.
* @param lockdownEnabled {@code true} to disallow networking when the VPN is not connected or
* {@code false} otherwise.
+ * @param lockdownWhitelist The list of packages that are allowed to access network directly
+ * when VPN is in lockdown mode but is not running. Non-existent packages are ignored so
+ * this method must be called when a package that should be whitelisted is installed or
+ * uninstalled.
* @return {@code true} if the package is set as always-on VPN controller;
* {@code false} otherwise.
* @hide
*/
+ @RequiresPermission(android.Manifest.permission.CONTROL_ALWAYS_ON_VPN)
public boolean setAlwaysOnVpnPackageForUser(int userId, @Nullable String vpnPackage,
- boolean lockdownEnabled) {
+ boolean lockdownEnabled, @Nullable List<String> lockdownWhitelist) {
try {
- return mService.setAlwaysOnVpnPackage(userId, vpnPackage, lockdownEnabled);
+ return mService.setAlwaysOnVpnPackage(
+ userId, vpnPackage, lockdownEnabled, lockdownWhitelist);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
+ * Configures an always-on VPN connection through a specific application.
+ * This connection is automatically granted and persisted after a reboot.
+ *
+ * <p>The designated package should declare a {@link VpnService} in its
+ * manifest guarded by {@link android.Manifest.permission.BIND_VPN_SERVICE},
+ * otherwise the call will fail.
+ *
+ * @param userId The identifier of the user to set an always-on VPN for.
+ * @param vpnPackage The package name for an installed VPN app on the device, or {@code null}
+ * to remove an existing always-on VPN configuration.
+ * @param lockdownEnabled {@code true} to disallow networking when the VPN is not connected or
+ * {@code false} otherwise.
+ * @return {@code true} if the package is set as always-on VPN controller;
+ * {@code false} otherwise.
+ * @hide
+ */
+ @RequiresPermission(android.Manifest.permission.CONTROL_ALWAYS_ON_VPN)
+ public boolean setAlwaysOnVpnPackageForUser(int userId, @Nullable String vpnPackage,
+ boolean lockdownEnabled) {
+ try {
+ return mService.setAlwaysOnVpnPackage(
+ userId, vpnPackage, lockdownEnabled, /* whitelist */ null);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ }
+
+ /**
* Returns the package name of the currently set always-on VPN application.
* If there is no always-on VPN set, or the VPN is provided by the system instead
* of by an app, {@code null} will be returned.
@@ -1036,6 +1070,7 @@
* or {@code null} if none is set.
* @hide
*/
+ @RequiresPermission(android.Manifest.permission.CONTROL_ALWAYS_ON_VPN)
public String getAlwaysOnVpnPackageForUser(int userId) {
try {
return mService.getAlwaysOnVpnPackage(userId);
@@ -1045,6 +1080,36 @@
}
/**
+ * @return whether always-on VPN is in lockdown mode.
+ *
+ * @hide
+ **/
+ @RequiresPermission(android.Manifest.permission.CONTROL_ALWAYS_ON_VPN)
+ public boolean isVpnLockdownEnabled(int userId) {
+ try {
+ return mService.isVpnLockdownEnabled(userId);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+
+ }
+
+ /**
+ * @return the list of packages that are allowed to access network when always-on VPN is in
+ * lockdown mode but not connected. Returns {@code null} when VPN lockdown is not active.
+ *
+ * @hide
+ **/
+ @RequiresPermission(android.Manifest.permission.CONTROL_ALWAYS_ON_VPN)
+ public List<String> getVpnLockdownWhitelist(int userId) {
+ try {
+ return mService.getVpnLockdownWhitelist(userId);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ }
+
+ /**
* Returns details about the currently active default data network
* for a given uid. This is for internal use only to avoid spying
* other apps.
diff --git a/core/java/android/net/IConnectivityManager.aidl b/core/java/android/net/IConnectivityManager.aidl
index e97060a..fd7360f 100644
--- a/core/java/android/net/IConnectivityManager.aidl
+++ b/core/java/android/net/IConnectivityManager.aidl
@@ -125,8 +125,11 @@
boolean updateLockdownVpn();
boolean isAlwaysOnVpnPackageSupported(int userId, String packageName);
- boolean setAlwaysOnVpnPackage(int userId, String packageName, boolean lockdown);
+ boolean setAlwaysOnVpnPackage(int userId, String packageName, boolean lockdown,
+ in List<String> lockdownWhitelist);
String getAlwaysOnVpnPackage(int userId);
+ boolean isVpnLockdownEnabled(int userId);
+ List<String> getVpnLockdownWhitelist(int userId);
int checkMobileProvisioning(int suggestedTimeOutMs);
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index bbd76d2..e904b07 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -5671,6 +5671,16 @@
public static final String ALWAYS_ON_VPN_LOCKDOWN = "always_on_vpn_lockdown";
/**
+ * Comma separated list of packages that are allowed to access the network when VPN is in
+ * lockdown mode but not running.
+ * @see #ALWAYS_ON_VPN_LOCKDOWN
+ *
+ * @hide
+ */
+ public static final String ALWAYS_ON_VPN_LOCKDOWN_WHITELIST =
+ "always_on_vpn_lockdown_whitelist";
+
+ /**
* Whether applications can be installed for this user via the system's
* {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
*
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 344b74c..2f3c1db 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -3231,6 +3231,12 @@
android:protectionLevel="signature|privileged" />
<uses-permission android:name="android.permission.CONTROL_VPN" />
+ <!-- Allows an application to access and modify always-on VPN configuration.
+ <p>Not for use by third-party or privileged applications.
+ @hide -->
+ <permission android:name="android.permission.CONTROL_ALWAYS_ON_VPN"
+ android:protectionLevel="signature" />
+
<!-- Allows an application to capture audio output.
<p>Not for use by third-party applications.</p> -->
<permission android:name="android.permission.CAPTURE_AUDIO_OUTPUT"
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index ddab252..212c723 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -512,6 +512,7 @@
Settings.Secure.ALLOWED_GEOLOCATION_ORIGINS,
Settings.Secure.ALWAYS_ON_VPN_APP,
Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN,
+ Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN_WHITELIST,
Settings.Secure.ANDROID_ID,
Settings.Secure.ANR_SHOW_BACKGROUND,
Settings.Secure.ASSISTANT,
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 14e2354..1519c17 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -1884,6 +1884,12 @@
"ConnectivityService");
}
+ private void enforceControlAlwaysOnVpnPermission() {
+ mContext.enforceCallingOrSelfPermission(
+ android.Manifest.permission.CONTROL_ALWAYS_ON_VPN,
+ "ConnectivityService");
+ }
+
private void enforceNetworkStackSettingsOrSetup() {
enforceAnyPermissionOf(
android.Manifest.permission.NETWORK_SETTINGS,
@@ -1891,6 +1897,12 @@
android.Manifest.permission.NETWORK_STACK);
}
+ private void enforceNetworkStackPermission() {
+ mContext.enforceCallingOrSelfPermission(
+ android.Manifest.permission.NETWORK_STACK,
+ "ConnectivityService");
+ }
+
private boolean checkNetworkStackPermission() {
return PERMISSION_GRANTED == mContext.checkCallingOrSelfPermission(
android.Manifest.permission.NETWORK_STACK);
@@ -4147,8 +4159,9 @@
}
@Override
- public boolean setAlwaysOnVpnPackage(int userId, String packageName, boolean lockdown) {
- enforceConnectivityInternalPermission();
+ public boolean setAlwaysOnVpnPackage(
+ int userId, String packageName, boolean lockdown, List<String> lockdownWhitelist) {
+ enforceControlAlwaysOnVpnPermission();
enforceCrossUserPermission(userId);
synchronized (mVpns) {
@@ -4162,11 +4175,11 @@
Slog.w(TAG, "User " + userId + " has no Vpn configuration");
return false;
}
- if (!vpn.setAlwaysOnPackage(packageName, lockdown)) {
+ if (!vpn.setAlwaysOnPackage(packageName, lockdown, lockdownWhitelist)) {
return false;
}
if (!startAlwaysOnVpn(userId)) {
- vpn.setAlwaysOnPackage(null, false);
+ vpn.setAlwaysOnPackage(null, false, null);
return false;
}
}
@@ -4175,7 +4188,7 @@
@Override
public String getAlwaysOnVpnPackage(int userId) {
- enforceConnectivityInternalPermission();
+ enforceControlAlwaysOnVpnPermission();
enforceCrossUserPermission(userId);
synchronized (mVpns) {
@@ -4189,6 +4202,36 @@
}
@Override
+ public boolean isVpnLockdownEnabled(int userId) {
+ enforceControlAlwaysOnVpnPermission();
+ enforceCrossUserPermission(userId);
+
+ synchronized (mVpns) {
+ Vpn vpn = mVpns.get(userId);
+ if (vpn == null) {
+ Slog.w(TAG, "User " + userId + " has no Vpn configuration");
+ return false;
+ }
+ return vpn.getLockdown();
+ }
+ }
+
+ @Override
+ public List<String> getVpnLockdownWhitelist(int userId) {
+ enforceControlAlwaysOnVpnPermission();
+ enforceCrossUserPermission(userId);
+
+ synchronized (mVpns) {
+ Vpn vpn = mVpns.get(userId);
+ if (vpn == null) {
+ Slog.w(TAG, "User " + userId + " has no Vpn configuration");
+ return null;
+ }
+ return vpn.getLockdownWhitelist();
+ }
+ }
+
+ @Override
public int checkMobileProvisioning(int suggestedTimeOutMs) {
// TODO: Remove? Any reason to trigger a provisioning check?
return -1;
@@ -4417,7 +4460,7 @@
if (TextUtils.equals(vpn.getAlwaysOnPackage(), packageName) && !isReplacing) {
Slog.d(TAG, "Removing always-on VPN package " + packageName + " for user "
+ userId);
- vpn.setAlwaysOnPackage(null, false);
+ vpn.setAlwaysOnPackage(null, false, null);
}
}
}
@@ -6297,7 +6340,7 @@
synchronized (mVpns) {
final String alwaysOnPackage = getAlwaysOnVpnPackage(userId);
if (alwaysOnPackage != null) {
- setAlwaysOnVpnPackage(userId, null, false);
+ setAlwaysOnVpnPackage(userId, null, false, null);
setVpnPackageAuthorization(alwaysOnPackage, userId, false);
}
diff --git a/services/core/java/com/android/server/connectivity/Vpn.java b/services/core/java/com/android/server/connectivity/Vpn.java
index 62a1b03..2508844 100644
--- a/services/core/java/com/android/server/connectivity/Vpn.java
+++ b/services/core/java/com/android/server/connectivity/Vpn.java
@@ -151,7 +151,7 @@
.divide(BigInteger.valueOf(100));
}
// How many routes to evaluate before bailing and declaring this Vpn should provide
- // the INTERNET capability. This is necessary because computing the adress space is
+ // the INTERNET capability. This is necessary because computing the address space is
// O(n²) and this is running in the system service, so a limit is needed to alleviate
// the risk of attack.
// This is taken as a total of IPv4 + IPV6 routes for simplicity, but the algorithm
@@ -194,6 +194,12 @@
private boolean mLockdown = false;
/**
+ * Set of packages in addition to the VPN app itself that can access the network directly when
+ * VPN is not connected even if {@code mLockdown} is set.
+ */
+ private @NonNull List<String> mLockdownWhitelist = Collections.emptyList();
+
+ /**
* List of UIDs for which networking should be blocked until VPN is ready, during brief periods
* when VPN is not running. For example, during system startup or after a crash.
* @see mLockdown
@@ -320,9 +326,9 @@
*
* Used to enable/disable legacy VPN lockdown.
*
- * This uses the same ip rule mechanism as {@link #setAlwaysOnPackage(String, boolean)};
- * previous settings from calling that function will be replaced and saved with the
- * always-on state.
+ * This uses the same ip rule mechanism as
+ * {@link #setAlwaysOnPackage(String, boolean, List<String>)}; previous settings from calling
+ * that function will be replaced and saved with the always-on state.
*
* @param lockdown whether to prevent all traffic outside of a VPN.
*/
@@ -419,12 +425,14 @@
*
* @param packageName the package to designate as always-on VPN supplier.
* @param lockdown whether to prevent traffic outside of a VPN, for example while connecting.
+ * @param lockdownWhitelist packages to be whitelisted from lockdown.
* @return {@code true} if the package has been set as always-on, {@code false} otherwise.
*/
- public synchronized boolean setAlwaysOnPackage(String packageName, boolean lockdown) {
+ public synchronized boolean setAlwaysOnPackage(
+ String packageName, boolean lockdown, List<String> lockdownWhitelist) {
enforceControlPermissionOrInternalCaller();
- if (setAlwaysOnPackageInternal(packageName, lockdown)) {
+ if (setAlwaysOnPackageInternal(packageName, lockdown, lockdownWhitelist)) {
saveAlwaysOnPackage();
return true;
}
@@ -439,15 +447,27 @@
*
* @param packageName the package to designate as always-on VPN supplier.
* @param lockdown whether to prevent traffic outside of a VPN, for example while connecting.
+ * @param lockdownWhitelist packages to be whitelisted from lockdown. This is only used if
+ * {@code lockdown} is {@code true}. Packages must not contain commas.
* @return {@code true} if the package has been set as always-on, {@code false} otherwise.
*/
@GuardedBy("this")
- private boolean setAlwaysOnPackageInternal(String packageName, boolean lockdown) {
+ private boolean setAlwaysOnPackageInternal(
+ String packageName, boolean lockdown, List<String> lockdownWhitelist) {
if (VpnConfig.LEGACY_VPN.equals(packageName)) {
Log.w(TAG, "Not setting legacy VPN \"" + packageName + "\" as always-on.");
return false;
}
+ if (lockdownWhitelist != null) {
+ for (String pkg : lockdownWhitelist) {
+ if (pkg.contains(",")) {
+ Log.w(TAG, "Not setting always-on vpn, invalid whitelisted package: " + pkg);
+ return false;
+ }
+ }
+ }
+
if (packageName != null) {
// Pre-authorize new always-on VPN package.
if (!setPackageAuthorization(packageName, true)) {
@@ -460,13 +480,18 @@
}
mLockdown = (mAlwaysOn && lockdown);
+ mLockdownWhitelist = (mLockdown && lockdownWhitelist != null)
+ ? Collections.unmodifiableList(new ArrayList<>(lockdownWhitelist))
+ : Collections.emptyList();
+
if (isCurrentPreparedPackage(packageName)) {
updateAlwaysOnNotification(mNetworkInfo.getDetailedState());
+ setVpnForcedLocked(mLockdown);
} else {
// Prepare this app. The notification will update as a side-effect of updateState().
+ // It also calls setVpnForcedLocked().
prepareInternal(packageName);
}
- setVpnForcedLocked(mLockdown);
return true;
}
@@ -478,7 +503,6 @@
* @return the package name of the VPN controller responsible for always-on VPN,
* or {@code null} if none is set or always-on VPN is controlled through
* lockdown instead.
- * @hide
*/
public synchronized String getAlwaysOnPackage() {
enforceControlPermissionOrInternalCaller();
@@ -486,6 +510,13 @@
}
/**
+ * @return an immutable list of packages whitelisted from always-on VPN lockdown.
+ */
+ public synchronized List<String> getLockdownWhitelist() {
+ return mLockdown ? mLockdownWhitelist : null;
+ }
+
+ /**
* Save the always-on package and lockdown config into Settings.Secure
*/
@GuardedBy("this")
@@ -496,6 +527,9 @@
getAlwaysOnPackage(), mUserHandle);
mSystemServices.settingsSecurePutIntForUser(Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN,
(mAlwaysOn && mLockdown ? 1 : 0), mUserHandle);
+ mSystemServices.settingsSecurePutStringForUser(
+ Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN_WHITELIST,
+ String.join(",", mLockdownWhitelist), mUserHandle);
} finally {
Binder.restoreCallingIdentity(token);
}
@@ -512,7 +546,11 @@
Settings.Secure.ALWAYS_ON_VPN_APP, mUserHandle);
final boolean alwaysOnLockdown = mSystemServices.settingsSecureGetIntForUser(
Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN, 0 /*default*/, mUserHandle) != 0;
- setAlwaysOnPackageInternal(alwaysOnPackage, alwaysOnLockdown);
+ final String whitelistString = mSystemServices.settingsSecureGetStringForUser(
+ Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN_WHITELIST, mUserHandle);
+ final List<String> whitelistedPackages = TextUtils.isEmpty(whitelistString)
+ ? Collections.emptyList() : Arrays.asList(whitelistString.split(","));
+ setAlwaysOnPackageInternal(alwaysOnPackage, alwaysOnLockdown, whitelistedPackages);
} finally {
Binder.restoreCallingIdentity(token);
}
@@ -532,7 +570,7 @@
}
// Remove always-on VPN if it's not supported.
if (!isAlwaysOnPackageSupported(alwaysOnPackage)) {
- setAlwaysOnPackage(null, false);
+ setAlwaysOnPackage(null, false, null);
return false;
}
// Skip if the service is already established. This isn't bulletproof: it's not bound
@@ -1249,9 +1287,10 @@
}
/**
- * Restrict network access from all UIDs affected by this {@link Vpn}, apart from the VPN
- * service app itself, to only sockets that have had {@code protect()} called on them. All
- * non-VPN traffic is blocked via a {@code PROHIBIT} response from the kernel.
+ * Restricts network access from all UIDs affected by this {@link Vpn}, apart from the VPN
+ * service app itself and whitelisted packages, to only sockets that have had {@code protect()}
+ * called on them. All non-VPN traffic is blocked via a {@code PROHIBIT} response from the
+ * kernel.
*
* The exception for the VPN UID isn't technically necessary -- setup should use protected
* sockets -- but in practice it saves apps that don't protect their sockets from breaking.
@@ -1267,8 +1306,13 @@
*/
@GuardedBy("this")
private void setVpnForcedLocked(boolean enforce) {
- final List<String> exemptedPackages =
- isNullOrLegacyVpn(mPackage) ? null : Collections.singletonList(mPackage);
+ final List<String> exemptedPackages;
+ if (isNullOrLegacyVpn(mPackage)) {
+ exemptedPackages = null;
+ } else {
+ exemptedPackages = new ArrayList<>(mLockdownWhitelist);
+ exemptedPackages.add(mPackage);
+ }
final Set<UidRange> removedRanges = new ArraySet<>(mBlockedUsers);
Set<UidRange> addedRanges = Collections.emptySet();
diff --git a/services/core/java/com/android/server/pm/UserRestrictionsUtils.java b/services/core/java/com/android/server/pm/UserRestrictionsUtils.java
index 9ca02ba..a6242e1 100644
--- a/services/core/java/com/android/server/pm/UserRestrictionsUtils.java
+++ b/services/core/java/com/android/server/pm/UserRestrictionsUtils.java
@@ -16,10 +16,6 @@
package com.android.server.pm;
-import com.google.android.collect.Sets;
-
-import com.android.internal.util.Preconditions;
-
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.app.ActivityManager;
@@ -42,6 +38,10 @@
import android.util.Slog;
import android.util.SparseArray;
+import com.android.internal.util.Preconditions;
+
+import com.google.android.collect.Sets;
+
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlSerializer;
@@ -660,6 +660,7 @@
case android.provider.Settings.Secure.ALWAYS_ON_VPN_APP:
case android.provider.Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN:
+ case android.provider.Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN_WHITELIST:
// Whitelist system uid (ConnectivityService) and root uid to change always-on vpn
final int appId = UserHandle.getAppId(callingUid);
if (appId == Process.SYSTEM_UID || appId == Process.ROOT_UID) {
diff --git a/tests/net/java/com/android/server/connectivity/VpnTest.java b/tests/net/java/com/android/server/connectivity/VpnTest.java
index 0b74d87..5b17224 100644
--- a/tests/net/java/com/android/server/connectivity/VpnTest.java
+++ b/tests/net/java/com/android/server/connectivity/VpnTest.java
@@ -246,17 +246,17 @@
assertFalse(vpn.getLockdown());
// Set always-on without lockdown.
- assertTrue(vpn.setAlwaysOnPackage(PKGS[1], false));
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[1], false, Collections.emptyList()));
assertTrue(vpn.getAlwaysOn());
assertFalse(vpn.getLockdown());
// Set always-on with lockdown.
- assertTrue(vpn.setAlwaysOnPackage(PKGS[1], true));
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[1], true, Collections.emptyList()));
assertTrue(vpn.getAlwaysOn());
assertTrue(vpn.getLockdown());
// Remove always-on configuration.
- assertTrue(vpn.setAlwaysOnPackage(null, false));
+ assertTrue(vpn.setAlwaysOnPackage(null, false, Collections.emptyList()));
assertFalse(vpn.getAlwaysOn());
assertFalse(vpn.getLockdown());
}
@@ -270,11 +270,11 @@
assertUnblocked(vpn, user.start + PKG_UIDS[0], user.start + PKG_UIDS[1], user.start + PKG_UIDS[2], user.start + PKG_UIDS[3]);
// Set always-on without lockdown.
- assertTrue(vpn.setAlwaysOnPackage(PKGS[1], false));
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[1], false, null));
assertUnblocked(vpn, user.start + PKG_UIDS[0], user.start + PKG_UIDS[1], user.start + PKG_UIDS[2], user.start + PKG_UIDS[3]);
// Set always-on with lockdown.
- assertTrue(vpn.setAlwaysOnPackage(PKGS[1], true));
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[1], true, null));
verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[] {
new UidRange(user.start, user.start + PKG_UIDS[1] - 1),
new UidRange(user.start + PKG_UIDS[1] + 1, user.stop)
@@ -283,7 +283,7 @@
assertUnblocked(vpn, user.start + PKG_UIDS[1]);
// Switch to another app.
- assertTrue(vpn.setAlwaysOnPackage(PKGS[3], true));
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[3], true, null));
verify(mNetService).setAllowOnlyVpnForUids(eq(false), aryEq(new UidRange[] {
new UidRange(user.start, user.start + PKG_UIDS[1] - 1),
new UidRange(user.start + PKG_UIDS[1] + 1, user.stop)
@@ -297,6 +297,87 @@
}
@Test
+ public void testLockdownWhitelist() throws Exception {
+ final Vpn vpn = createVpn(primaryUser.id);
+ final UidRange user = UidRange.createForUser(primaryUser.id);
+
+ // Set always-on with lockdown and whitelist app PKGS[2] from lockdown.
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[1], true, Collections.singletonList(PKGS[2])));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[] {
+ new UidRange(user.start, user.start + PKG_UIDS[1] - 1),
+ new UidRange(user.start + PKG_UIDS[2] + 1, user.stop)
+ }));
+ assertBlocked(vpn, user.start + PKG_UIDS[0], user.start + PKG_UIDS[3]);
+ assertUnblocked(vpn, user.start + PKG_UIDS[1], user.start + PKG_UIDS[2]);
+
+ // Change whitelisted app to PKGS[3].
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[1], true, Collections.singletonList(PKGS[3])));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(false), aryEq(new UidRange[] {
+ new UidRange(user.start + PKG_UIDS[2] + 1, user.stop)
+ }));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[] {
+ new UidRange(user.start + PKG_UIDS[1] + 1, user.start + PKG_UIDS[3] - 1),
+ new UidRange(user.start + PKG_UIDS[3] + 1, user.stop)
+ }));
+ assertBlocked(vpn, user.start + PKG_UIDS[0], user.start + PKG_UIDS[2]);
+ assertUnblocked(vpn, user.start + PKG_UIDS[1], user.start + PKG_UIDS[3]);
+
+ // Change the VPN app.
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[0], true, Collections.singletonList(PKGS[3])));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(false), aryEq(new UidRange[] {
+ new UidRange(user.start, user.start + PKG_UIDS[1] - 1),
+ new UidRange(user.start + PKG_UIDS[1] + 1, user.start + PKG_UIDS[3] - 1)
+ }));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[] {
+ new UidRange(user.start, user.start + PKG_UIDS[0] - 1),
+ new UidRange(user.start + PKG_UIDS[0] + 1, user.start + PKG_UIDS[3] - 1)
+ }));
+ assertBlocked(vpn, user.start + PKG_UIDS[1], user.start + PKG_UIDS[2]);
+ assertUnblocked(vpn, user.start + PKG_UIDS[0], user.start + PKG_UIDS[3]);
+
+ // Remove the whitelist.
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[0], true, null));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(false), aryEq(new UidRange[] {
+ new UidRange(user.start + PKG_UIDS[0] + 1, user.start + PKG_UIDS[3] - 1),
+ new UidRange(user.start + PKG_UIDS[3] + 1, user.stop)
+ }));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[] {
+ new UidRange(user.start + PKG_UIDS[0] + 1, user.stop),
+ }));
+ assertBlocked(vpn, user.start + PKG_UIDS[1], user.start + PKG_UIDS[2],
+ user.start + PKG_UIDS[3]);
+ assertUnblocked(vpn, user.start + PKG_UIDS[0]);
+
+ // Add the whitelist.
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[0], true, Collections.singletonList(PKGS[1])));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(false), aryEq(new UidRange[] {
+ new UidRange(user.start + PKG_UIDS[0] + 1, user.stop)
+ }));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[] {
+ new UidRange(user.start + PKG_UIDS[0] + 1, user.start + PKG_UIDS[1] - 1),
+ new UidRange(user.start + PKG_UIDS[1] + 1, user.stop)
+ }));
+ assertBlocked(vpn, user.start + PKG_UIDS[2], user.start + PKG_UIDS[3]);
+ assertUnblocked(vpn, user.start + PKG_UIDS[0], user.start + PKG_UIDS[1]);
+
+ // Try whitelisting a package with a comma, should be rejected.
+ assertFalse(vpn.setAlwaysOnPackage(PKGS[0], true, Collections.singletonList("a.b,c.d")));
+
+ // Pass a non-existent packages in the whitelist, they (and only they) should be ignored.
+ // Whitelisted package should change from PGKS[1] to PKGS[2].
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[0], true,
+ Arrays.asList("com.foo.app", PKGS[2], "com.bar.app")));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(false), aryEq(new UidRange[]{
+ new UidRange(user.start + PKG_UIDS[0] + 1, user.start + PKG_UIDS[1] - 1),
+ new UidRange(user.start + PKG_UIDS[1] + 1, user.stop)
+ }));
+ verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[]{
+ new UidRange(user.start + PKG_UIDS[0] + 1, user.start + PKG_UIDS[2] - 1),
+ new UidRange(user.start + PKG_UIDS[2] + 1, user.stop)
+ }));
+ }
+
+ @Test
public void testLockdownAddingAProfile() throws Exception {
final Vpn vpn = createVpn(primaryUser.id);
setMockedUsers(primaryUser);
@@ -310,7 +391,7 @@
final UidRange profile = UidRange.createForUser(tempProfile.id);
// Set lockdown.
- assertTrue(vpn.setAlwaysOnPackage(PKGS[3], true));
+ assertTrue(vpn.setAlwaysOnPackage(PKGS[3], true, null));
verify(mNetService).setAllowOnlyVpnForUids(eq(true), aryEq(new UidRange[] {
new UidRange(user.start, user.start + PKG_UIDS[3] - 1),
new UidRange(user.start + PKG_UIDS[3] + 1, user.stop)
@@ -436,7 +517,7 @@
.cancelAsUser(anyString(), anyInt(), eq(userHandle));
// Start showing a notification for disconnected once always-on.
- vpn.setAlwaysOnPackage(PKGS[0], false);
+ vpn.setAlwaysOnPackage(PKGS[0], false, null);
order.verify(mNotificationManager)
.notifyAsUser(anyString(), anyInt(), any(), eq(userHandle));
@@ -450,7 +531,7 @@
.notifyAsUser(anyString(), anyInt(), any(), eq(userHandle));
// Notification should be cleared after unsetting always-on package.
- vpn.setAlwaysOnPackage(null, false);
+ vpn.setAlwaysOnPackage(null, false, null);
order.verify(mNotificationManager).cancelAsUser(anyString(), anyInt(), eq(userHandle));
}
@@ -583,7 +664,9 @@
doAnswer(invocation -> {
final String appName = (String) invocation.getArguments()[0];
final int userId = (int) invocation.getArguments()[1];
- return UserHandle.getUid(userId, packages.get(appName));
+ Integer appId = packages.get(appName);
+ if (appId == null) throw new PackageManager.NameNotFoundException(appName);
+ return UserHandle.getUid(userId, appId);
}).when(mPackageManager).getPackageUidAsUser(anyString(), anyInt());
} catch (Exception e) {
}