LineageOS/android_packages_modules_Connectivity
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Enforce that NetworkAgentInfo fields are never null.

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These fields have been recently audited, confirmed never to be
null, and annotated @NonNull. Ensure that they can never become
null by throwing exceptions in the codepaths that set them.
Also remove some null checks.

Test: atest FrameworksNetTests
Change-Id: I6ce5bb4d69a990f1c857c599b7e50e372352eb87
This commit is contained in:
Lorenzo Colitti
2021-01-18 14:15:17 +09:00
parent ac155fc61e
commit bb4d45fb70
5 changed files with 38 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
tests/net/java/com/android/server/ConnectivityServiceTest.java
View File

@@ -8112,11 +8112,18 @@ public class ConnectivityServiceTest {
assertTrue(mService.mConnectivityDiagnosticsCallbacks.containsKey(mIBinder));
}
public NetworkAgentInfo fakeMobileNai(NetworkCapabilities nc) {
final NetworkInfo info = new NetworkInfo(TYPE_MOBILE, TelephonyManager.NETWORK_TYPE_LTE,
ConnectivityManager.getNetworkTypeName(TYPE_MOBILE),
TelephonyManager.getNetworkTypeName(TelephonyManager.NETWORK_TYPE_LTE));
return new NetworkAgentInfo(null, new Network(NET_ID), info, new LinkProperties(),
nc, 0, mServiceContext, null, new NetworkAgentConfig(), mService, null, null, null,
0, INVALID_UID);
}
@Test
public void testCheckConnectivityDiagnosticsPermissionsNetworkStack() throws Exception {
final NetworkAgentInfo naiWithoutUid =
new NetworkAgentInfo(null, null, null, null, new NetworkCapabilities(), 0,
mServiceContext, null, null, mService, null, null, null, 0, INVALID_UID);
final NetworkAgentInfo naiWithoutUid = fakeMobileNai(new NetworkCapabilities());
mServiceContext.setPermission(
android.Manifest.permission.NETWORK_STACK, PERMISSION_GRANTED);
@@ -8129,9 +8136,7 @@ public class ConnectivityServiceTest {
@Test
public void testCheckConnectivityDiagnosticsPermissionsWrongUidPackageName() throws Exception {
final NetworkAgentInfo naiWithoutUid =
new NetworkAgentInfo(null, null, null, null, new NetworkCapabilities(), 0,
mServiceContext, null, null, mService, null, null, null, 0, INVALID_UID);
final NetworkAgentInfo naiWithoutUid = fakeMobileNai(new NetworkCapabilities());
mServiceContext.setPermission(android.Manifest.permission.NETWORK_STACK, PERMISSION_DENIED);
@@ -8144,9 +8149,7 @@ public class ConnectivityServiceTest {
@Test
public void testCheckConnectivityDiagnosticsPermissionsNoLocationPermission() throws Exception {
final NetworkAgentInfo naiWithoutUid =
new NetworkAgentInfo(null, null, null, null, new NetworkCapabilities(), 0,
mServiceContext, null, null, mService, null, null, null, 0, INVALID_UID);
final NetworkAgentInfo naiWithoutUid = fakeMobileNai(new NetworkCapabilities());
mServiceContext.setPermission(android.Manifest.permission.NETWORK_STACK, PERMISSION_DENIED);
@@ -8159,10 +8162,7 @@ public class ConnectivityServiceTest {
@Test
public void testCheckConnectivityDiagnosticsPermissionsActiveVpn() throws Exception {
final Network network = new Network(NET_ID);
final NetworkAgentInfo naiWithoutUid =
new NetworkAgentInfo(null, network, null, null, new NetworkCapabilities(), 0,
mServiceContext, null, null, mService, null, null, null, 0, INVALID_UID);
final NetworkAgentInfo naiWithoutUid = fakeMobileNai(new NetworkCapabilities());
mMockVpn.establishForMyUid();
assertUidRangesUpdatedForMyUid(true);
@@ -8172,7 +8172,7 @@ public class ConnectivityServiceTest {
setupLocationPermissions(Build.VERSION_CODES.Q, true, AppOpsManager.OPSTR_FINE_LOCATION,
Manifest.permission.ACCESS_FINE_LOCATION);
assertTrue(mService.setUnderlyingNetworksForVpn(new Network[] {network}));
assertTrue(mService.setUnderlyingNetworksForVpn(new Network[] {naiWithoutUid.network}));
waitForIdle();
assertTrue(
"Active VPN permission not applied",
@@ -8193,9 +8193,7 @@ public class ConnectivityServiceTest {
public void testCheckConnectivityDiagnosticsPermissionsNetworkAdministrator() throws Exception {
final NetworkCapabilities nc = new NetworkCapabilities();
nc.setAdministratorUids(new int[] {Process.myUid()});
final NetworkAgentInfo naiWithUid =
new NetworkAgentInfo(null, null, null, null, nc, 0, mServiceContext, null, null,
mService, null, null, null, 0, INVALID_UID);
final NetworkAgentInfo naiWithUid = fakeMobileNai(nc);
setupLocationPermissions(Build.VERSION_CODES.Q, true, AppOpsManager.OPSTR_FINE_LOCATION,
Manifest.permission.ACCESS_FINE_LOCATION);
@@ -8212,9 +8210,7 @@ public class ConnectivityServiceTest {
final NetworkCapabilities nc = new NetworkCapabilities();
nc.setOwnerUid(Process.myUid());
nc.setAdministratorUids(new int[] {Process.myUid()});
final NetworkAgentInfo naiWithUid =
new NetworkAgentInfo(null, null, null, null, nc, 0, mServiceContext, null, null,
mService, null, null, null, 0, INVALID_UID);
final NetworkAgentInfo naiWithUid = fakeMobileNai(nc);
setupLocationPermissions(Build.VERSION_CODES.Q, true, AppOpsManager.OPSTR_FINE_LOCATION,
Manifest.permission.ACCESS_FINE_LOCATION);

9
tests/net/java/com/android/server/connectivity/LingerMonitorTest.java
View File

@@ -34,7 +34,9 @@ import android.content.res.Resources;
import android.net.ConnectivityManager;
import android.net.IDnsResolver;
import android.net.INetd;
import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkAgentConfig;
import android.net.NetworkCapabilities;
import android.net.NetworkInfo;
import android.net.NetworkProvider;
@@ -353,9 +355,10 @@ public class LingerMonitorTest {
NetworkCapabilities caps = new NetworkCapabilities();
caps.addCapability(0);
caps.addTransportType(transport);
NetworkAgentInfo nai = new NetworkAgentInfo(null, new Network(netId), info, null,
caps, 50, mCtx, null, null /* config */, mConnService, mNetd, mDnsResolver, mNMS,
NetworkProvider.ID_NONE, Binder.getCallingUid());
NetworkAgentInfo nai = new NetworkAgentInfo(null, new Network(netId), info,
new LinkProperties(), caps, 50, mCtx, null, new NetworkAgentConfig() /* config */,
mConnService, mNetd, mDnsResolver, mNMS, NetworkProvider.ID_NONE,
Binder.getCallingUid());
nai.everValidated = true;
return nai;
}