LineageOS/android_packages_modules_Connectivity
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Merge "Address leftover comments on 923337 and 930217."

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This commit is contained in:
Paul Hu
2019-04-02 07:39:04 +00:00
committed by Gerrit Code Review
parent 9c58ddc48e 1a40765101
commit a9b8e31cf8
5 changed files with 83 additions and 20 deletions
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24
core/java/android/net/ConnectivityManager.java
View File

@@ -3234,7 +3234,7 @@ public class ConnectivityManager {
*
* @hide
*/
public void onPreCheck(Network network) {}
public void onPreCheck(@NonNull Network network) {}
/**
* Called when the framework connects and has declared a new network ready for use.
@@ -3247,8 +3247,9 @@ public class ConnectivityManager {
* @param blocked Whether access to the {@link Network} is blocked due to system policy.
* @hide
*/
public void onAvailable(Network network, NetworkCapabilities networkCapabilities,
LinkProperties linkProperties, boolean blocked) {
public void onAvailable(@NonNull Network network,
@NonNull NetworkCapabilities networkCapabilities,
@NonNull LinkProperties linkProperties, boolean blocked) {
// Internally only this method is called when a new network is available, and
// it calls the callback in the same way and order that older versions used
// to call so as not to change the behavior.
@@ -3272,7 +3273,7 @@ public class ConnectivityManager {
*
* @param network The {@link Network} of the satisfying network.
*/
public void onAvailable(Network network) {}
public void onAvailable(@NonNull Network network) {}
/**
* Called when the network is about to be disconnected. Often paired with an
@@ -3288,7 +3289,7 @@ public class ConnectivityManager {
* network connected. Note that the network may suffer a
* hard loss at any time.
*/
public void onLosing(Network network, int maxMsToLive) {}
public void onLosing(@NonNull Network network, int maxMsToLive) {}
/**
* Called when the framework has a hard loss of the network or when the
@@ -3296,7 +3297,7 @@ public class ConnectivityManager {
*
* @param network The {@link Network} lost.
*/
public void onLost(Network network) {}
public void onLost(@NonNull Network network) {}
/**
* Called if no network is found in the timeout time specified in
@@ -3316,8 +3317,8 @@ public class ConnectivityManager {
* @param networkCapabilities The new {@link android.net.NetworkCapabilities} for this
* network.
*/
public void onCapabilitiesChanged(Network network,
NetworkCapabilities networkCapabilities) {}
public void onCapabilitiesChanged(@NonNull Network network,
@NonNull NetworkCapabilities networkCapabilities) {}
/**
* Called when the network the framework connected to for this request
@@ -3326,7 +3327,8 @@ public class ConnectivityManager {
* @param network The {@link Network} whose link properties have changed.
* @param linkProperties The new {@link LinkProperties} for this network.
*/
public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {}
public void onLinkPropertiesChanged(@NonNull Network network,
@NonNull LinkProperties linkProperties) {}
/**
* Called when the network the framework connected to for this request
@@ -3337,7 +3339,7 @@ public class ConnectivityManager {
* a tunnel, etc.
* @hide
*/
public void onNetworkSuspended(Network network) {}
public void onNetworkSuspended(@NonNull Network network) {}
/**
* Called when the network the framework connected to for this request
@@ -3345,7 +3347,7 @@ public class ConnectivityManager {
* preceded by a matching {@link NetworkCallback#onNetworkSuspended} call.
* @hide
*/
public void onNetworkResumed(Network network) {}
public void onNetworkResumed(@NonNull Network network) {}
/**
* Called when access to the specified network is blocked or unblocked.

6
core/java/android/net/LinkProperties.java
View File

@@ -316,9 +316,6 @@ public final class LinkProperties implements Parcelable {
@SystemApi
@TestApi
public boolean removeLinkAddress(@NonNull LinkAddress toRemove) {
if (toRemove == null) {
return false;
}
int i = findLinkAddressIndex(toRemove);
if (i >= 0) {
mLinkAddresses.remove(i);
@@ -391,11 +388,8 @@ public final class LinkProperties implements Parcelable {
@TestApi
@SystemApi
public boolean removeDnsServer(@NonNull InetAddress dnsServer) {
if (dnsServer != null) {
return mDnses.remove(dnsServer);
}
return false;
}
/**
* Replaces the DNS servers in this {@code LinkProperties} with

5
core/java/android/net/NetworkRequest.java
View File

@@ -17,6 +17,7 @@
package android.net;
import android.annotation.NonNull;
import android.annotation.RequiresPermission;
import android.annotation.SystemApi;
import android.annotation.UnsupportedAppUsage;
import android.net.NetworkCapabilities.NetCapability;
@@ -343,10 +344,14 @@ public class NetworkRequest implements Parcelable {
* current value. A value of {@code SIGNAL_STRENGTH_UNSPECIFIED} means no value when
* received and has no effect when requesting a callback.
*
* <p>This method requires the caller to hold the
* {@link android.Manifest.permission#NETWORK_SIGNAL_STRENGTH_WAKEUP} permission
*
* @param signalStrength the bearer-specific signal strength.
* @hide
*/
@SystemApi
@RequiresPermission(android.Manifest.permission.NETWORK_SIGNAL_STRENGTH_WAKEUP)
public @NonNull Builder setSignalStrength(int signalStrength) {
mNetworkCapabilities.setSignalStrength(signalStrength);
return this;

25
services/core/java/com/android/server/ConnectivityService.java
View File

@@ -1892,6 +1892,15 @@ public class ConnectivityService extends IConnectivityManager.Stub
return false;
}
private boolean checkAnyPermissionOf(int pid, int uid, String... permissions) {
for (String permission : permissions) {
if (mContext.checkPermission(permission, pid, uid) == PERMISSION_GRANTED) {
return true;
}
}
return false;
}
private void enforceAnyPermissionOf(String... permissions) {
if (!checkAnyPermissionOf(permissions)) {
throw new SecurityException("Requires one of the following permissions: "
@@ -1966,6 +1975,12 @@ public class ConnectivityService extends IConnectivityManager.Stub
NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK);
}
private boolean checkNetworkSignalStrengthWakeupPermission(int pid, int uid) {
return checkAnyPermissionOf(pid, uid,
android.Manifest.permission.NETWORK_SIGNAL_STRENGTH_WAKEUP,
NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK);
}
private void enforceConnectivityRestrictedNetworksPermission() {
try {
mContext.enforceCallingOrSelfPermission(
@@ -4959,13 +4974,19 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
}
// This checks that the passed capabilities either do not request a specific SSID, or the
// calling app has permission to do so.
// This checks that the passed capabilities either do not request a specific SSID/SignalStrength
// , or the calling app has permission to do so.
private void ensureSufficientPermissionsForRequest(NetworkCapabilities nc,
int callerPid, int callerUid) {
if (null != nc.getSSID() && !checkSettingsPermission(callerPid, callerUid)) {
throw new SecurityException("Insufficient permissions to request a specific SSID");
}
if (nc.hasSignalStrength()
&& !checkNetworkSignalStrengthWakeupPermission(callerPid, callerUid)) {
throw new SecurityException(
"Insufficient permissions to request a specific signal strength");
}
}
private ArrayList<Integer> getSignalStrengthThresholds(NetworkAgentInfo nai) {

41
tests/net/java/com/android/server/ConnectivityServiceTest.java
View File

@@ -3046,6 +3046,47 @@ public class ConnectivityServiceTest {
}
}
@Test
public void testInvalidSignalStrength() {
NetworkRequest r = new NetworkRequest.Builder()
.addCapability(NET_CAPABILITY_INTERNET)
.addTransportType(TRANSPORT_WIFI)
.setSignalStrength(-75)
.build();
// Registering a NetworkCallback with signal strength but w/o NETWORK_SIGNAL_STRENGTH_WAKEUP
// permission should get SecurityException.
try {
mCm.registerNetworkCallback(r, new NetworkCallback());
fail("Expected SecurityException filing a callback with signal strength");
} catch (SecurityException expected) {
// expected
}
try {
mCm.registerNetworkCallback(r, PendingIntent.getService(
mServiceContext, 0, new Intent(), 0));
fail("Expected SecurityException filing a callback with signal strength");
} catch (SecurityException expected) {
// expected
}
// Requesting a Network with signal strength should get IllegalArgumentException.
try {
mCm.requestNetwork(r, new NetworkCallback());
fail("Expected IllegalArgumentException filing a request with signal strength");
} catch (IllegalArgumentException expected) {
// expected
}
try {
mCm.requestNetwork(r, PendingIntent.getService(
mServiceContext, 0, new Intent(), 0));
fail("Expected IllegalArgumentException filing a request with signal strength");
} catch (IllegalArgumentException expected) {
// expected
}
}
@Test
public void testRegisterDefaultNetworkCallback() throws Exception {
final TestNetworkCallback defaultNetworkCallback = new TestNetworkCallback();