Merge "net: fix NPE when reading IP configurations"
diff --git a/core/java/android/net/NetworkTemplate.java b/core/java/android/net/NetworkTemplate.java
index ee24084..c906a13 100644
--- a/core/java/android/net/NetworkTemplate.java
+++ b/core/java/android/net/NetworkTemplate.java
@@ -70,9 +70,17 @@
private static final String TAG = "NetworkTemplate";
/**
+ * Initial Version of the backup serializer.
+ */
+ public static final int BACKUP_VERSION_1_INIT = 1;
+ /**
+ * Version of the backup serializer that added carrier template support.
+ */
+ public static final int BACKUP_VERSION_2_SUPPORT_CARRIER_TEMPLATE = 2;
+ /**
* Current Version of the Backup Serializer.
*/
- private static final int BACKUP_VERSION = 1;
+ private static final int BACKUP_VERSION = BACKUP_VERSION_2_SUPPORT_CARRIER_TEMPLATE;
public static final int MATCH_MOBILE = 1;
public static final int MATCH_WIFI = 4;
@@ -285,6 +293,10 @@
private final int mRoaming;
private final int mDefaultNetwork;
private final int mSubType;
+ /**
+ * The subscriber Id match rule defines how the template should match networks with
+ * specific subscriberId(s). See NetworkTemplate#SUBSCRIBER_ID_MATCH_RULE_* for more detail.
+ */
private final int mSubscriberIdMatchRule;
// Bitfield containing OEM network properties{@code NetworkIdentity#OEM_*}.
@@ -348,7 +360,7 @@
mSubscriberIdMatchRule = subscriberIdMatchRule;
checkValidSubscriberIdMatchRule();
if (!isKnownMatchRule(matchRule)) {
- Log.e(TAG, "Unknown network template rule " + matchRule
+ throw new IllegalArgumentException("Unknown network template rule " + matchRule
+ " will not match any identity.");
}
}
@@ -842,11 +854,17 @@
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream(baos);
+ if (!isPersistable()) {
+ Log.wtf(TAG, "Trying to backup non-persistable template: " + this);
+ }
+
out.writeInt(BACKUP_VERSION);
out.writeInt(mMatchRule);
BackupUtils.writeString(out, mSubscriberId);
BackupUtils.writeString(out, mNetworkId);
+ out.writeInt(mMetered);
+ out.writeInt(mSubscriberIdMatchRule);
return baos.toByteArray();
}
@@ -854,7 +872,7 @@
public static NetworkTemplate getNetworkTemplateFromBackup(DataInputStream in)
throws IOException, BackupUtils.BadVersionException {
int version = in.readInt();
- if (version < 1 || version > BACKUP_VERSION) {
+ if (version < BACKUP_VERSION_1_INIT || version > BACKUP_VERSION) {
throw new BackupUtils.BadVersionException("Unknown Backup Serialization Version");
}
@@ -862,11 +880,27 @@
String subscriberId = BackupUtils.readString(in);
String networkId = BackupUtils.readString(in);
- if (!isKnownMatchRule(matchRule)) {
- throw new BackupUtils.BadVersionException(
- "Restored network template contains unknown match rule " + matchRule);
+ final int metered;
+ final int subscriberIdMatchRule;
+ if (version >= BACKUP_VERSION_2_SUPPORT_CARRIER_TEMPLATE) {
+ metered = in.readInt();
+ subscriberIdMatchRule = in.readInt();
+ } else {
+ // For backward compatibility, fill the missing filters from match rules.
+ metered = (matchRule == MATCH_MOBILE || matchRule == MATCH_MOBILE_WILDCARD
+ || matchRule == MATCH_CARRIER) ? METERED_YES : METERED_ALL;
+ subscriberIdMatchRule = SUBSCRIBER_ID_MATCH_RULE_EXACT;
}
- return new NetworkTemplate(matchRule, subscriberId, networkId);
+ try {
+ return new NetworkTemplate(matchRule,
+ subscriberId, new String[] { subscriberId },
+ networkId, metered, NetworkStats.ROAMING_ALL,
+ NetworkStats.DEFAULT_NETWORK_ALL, NetworkTemplate.NETWORK_TYPE_ALL,
+ NetworkTemplate.OEM_MANAGED_ALL, subscriberIdMatchRule);
+ } catch (IllegalArgumentException e) {
+ throw new BackupUtils.BadVersionException(
+ "Restored network template contains unknown match rule " + matchRule, e);
+ }
}
}
diff --git a/services/core/java/com/android/server/net/NetworkStatsService.java b/services/core/java/com/android/server/net/NetworkStatsService.java
index f4b72a1..c876d41 100644
--- a/services/core/java/com/android/server/net/NetworkStatsService.java
+++ b/services/core/java/com/android/server/net/NetworkStatsService.java
@@ -150,6 +150,7 @@
import com.android.internal.util.DumpUtils;
import com.android.internal.util.FileRotator;
import com.android.internal.util.IndentingPrintWriter;
+import com.android.net.module.util.BinderUtils;
import com.android.server.EventLogTags;
import com.android.server.LocalServices;
@@ -2097,14 +2098,18 @@
@Override
public void notifyAlertReached() throws RemoteException {
- mAlertObserver.limitReached(LIMIT_GLOBAL_ALERT, null /* unused */);
+ // This binder object can only have been obtained by a process that holds
+ // NETWORK_STATS_PROVIDER. Thus, no additional permission check is required.
+ BinderUtils.withCleanCallingIdentity(() ->
+ mAlertObserver.limitReached(LIMIT_GLOBAL_ALERT, null /* unused */));
}
@Override
public void notifyWarningOrLimitReached() {
Log.d(TAG, mTag + ": notifyWarningOrLimitReached");
- LocalServices.getService(NetworkPolicyManagerInternal.class)
- .onStatsProviderWarningOrLimitReached(mTag);
+ BinderUtils.withCleanCallingIdentity(() ->
+ LocalServices.getService(NetworkPolicyManagerInternal.class)
+ .onStatsProviderWarningOrLimitReached(mTag));
}
@Override