Merge "Add dumpsys network_stack version" (2b0582e2) · Commits · e / os / android_frameworks_base

packages/NetworkStack/src/com/android/server/NetworkStackService.java

+35 −0

Original line number	Diff line number	Diff line
		@@ -62,6 +62,7 @@ import java.util.ArrayDeque;
		import java.util.ArrayList;
		import java.util.HashSet;
		import java.util.Iterator;
		import java.util.concurrent.atomic.AtomicInteger;

		/**
		* Android service used to start the network stack when bound to via an intent.
		@@ -117,6 +118,15 @@ public class NetworkStackService extends Service {
		@GuardedBy("mValidationLogs")
		private final ArrayDeque<SharedLog> mValidationLogs = new ArrayDeque<>(MAX_VALIDATION_LOGS);

		private static final int VERSION_UNKNOWN = 0;
		private static final String DUMPSYS_ARG_VERSION = "version";

		/** Version of the AIDL interfaces observed on the system */
		private final AtomicInteger mSystemAidlVersion = new AtomicInteger(VERSION_UNKNOWN);

		/** Whether different versions have been observed on interfaces provided by the system */
		private volatile boolean mConflictingSystemAidlVersions = false;

		private SharedLog addValidationLogs(Network network, String name) {
		final SharedLog log = new SharedLog(NUM_VALIDATION_LOG_LINES, network + " - " + name);
		synchronized (mValidationLogs) {
		@@ -143,6 +153,13 @@ public class NetworkStackService extends Service {
		}
		}

		private void updateSystemAidlVersion(final int version) {
		final int previousVersion = mSystemAidlVersion.getAndSet(version);
		if (previousVersion != VERSION_UNKNOWN && previousVersion != version) {
		mConflictingSystemAidlVersions = true;
		}
		}

		@NonNull
		private final SharedLog mLog = new SharedLog(TAG);

		@@ -150,6 +167,7 @@ public class NetworkStackService extends Service {
		public void makeDhcpServer(@NonNull String ifName, @NonNull DhcpServingParamsParcel params,
		@NonNull IDhcpServerCallbacks cb) throws RemoteException {
		checkNetworkStackCallingPermission();
		updateSystemAidlVersion(cb.getInterfaceVersion());
		final DhcpServer server;
		try {
		server = new DhcpServer(
		@@ -171,6 +189,7 @@ public class NetworkStackService extends Service {
		@Override
		public void makeNetworkMonitor(Network network, String name, INetworkMonitorCallbacks cb)
		throws RemoteException {
		updateSystemAidlVersion(cb.getInterfaceVersion());
		final SharedLog log = addValidationLogs(network, name);
		final NetworkMonitor nm = new NetworkMonitor(mContext, cb, network, log);
		cb.onNetworkMonitorCreated(new NetworkMonitorImpl(nm));
		@@ -178,6 +197,7 @@ public class NetworkStackService extends Service {

		@Override
		public void makeIpClient(String ifName, IIpClientCallbacks cb) throws RemoteException {
		updateSystemAidlVersion(cb.getInterfaceVersion());
		final IpClient ipClient = new IpClient(mContext, ifName, cb, mObserverRegistry, this);

		synchronized (mIpClients) {
		@@ -202,6 +222,7 @@ public class NetworkStackService extends Service {
		@Override
		public void fetchIpMemoryStore(@NonNull final IIpMemoryStoreCallbacks cb)
		throws RemoteException {
		updateSystemAidlVersion(cb.getInterfaceVersion());
		cb.onIpMemoryStoreFetched(mIpMemoryStoreService);
		}

		@@ -209,6 +230,11 @@ public class NetworkStackService extends Service {
		protected void dump(@NonNull FileDescriptor fd, @NonNull PrintWriter fout,
		@Nullable String[] args) {
		checkDumpPermission();
		if (args != null && args.length >= 1 && DUMPSYS_ARG_VERSION.equals(args[0])) {
		dumpVersion(fout);
		return;
		}

		final IndentingPrintWriter pw = new IndentingPrintWriter(fout, " ");
		pw.println("NetworkStack logs:");
		mLog.dump(fd, pw, args);
		@@ -252,6 +278,15 @@ public class NetworkStackService extends Service {
		}
		}

		/**
		* Dump version information of the module and detected system version.
		*/
		private void dumpVersion(@NonNull PrintWriter fout) {
		fout.println("NetworkStackConnector: " + this.VERSION);
		fout.println("SystemServer: " + mSystemAidlVersion);
		fout.println("SystemServerConflicts: " + mConflictingSystemAidlVersions);
		}

		@Override
		public int getInterfaceVersion() {
		return this.VERSION;