am 278886d5: am 3184b286: am fa4eda44: Merge "Remove network access for idle apps" into mnc-dev (98322c8e) · Commits · e / os / android_frameworks_base

core/java/android/net/NetworkPolicyManager.java

+11 −1

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ import java.util.HashSet;
		*/
		public class NetworkPolicyManager {

		/* POLICY_* are masks and can be ORed */
		/** No specific network policy, use system default. */
		public static final int POLICY_NONE = 0x0;
		/** Reject network usage on metered networks when application in background. */
		@@ -48,10 +49,17 @@ public class NetworkPolicyManager {
		/** Allow network use (metered or not) in the background in battery save mode. */
		public static final int POLICY_ALLOW_BACKGROUND_BATTERY_SAVE = 0x2;

		/* RULE_* are not masks and they must be exclusive */
		/** All network traffic should be allowed. */
		public static final int RULE_ALLOW_ALL = 0x0;
		/** Reject traffic on metered networks. */
		public static final int RULE_REJECT_METERED = 0x1;
		/** Reject traffic on all networks. */
		public static final int RULE_REJECT_ALL = 0x2;

		public static final int FIREWALL_RULE_DEFAULT = 0;
		public static final int FIREWALL_RULE_ALLOW = 1;
		public static final int FIREWALL_RULE_DENY = 2;

		private static final boolean ALLOW_PLATFORM_APP_POLICY = true;

		@@ -80,7 +88,7 @@ public class NetworkPolicyManager {
		* Set policy flags for specific UID.
		*
		* @param policy {@link #POLICY_NONE} or combination of flags like
		* {@link #POLICY_REJECT_METERED_BACKGROUND}, {@link #POLICY_ALLOW_BACKGROUND_BATTERY_SAVE}.
		* {@link #POLICY_REJECT_METERED_BACKGROUND} or {@link #POLICY_ALLOW_BACKGROUND_BATTERY_SAVE}.
		*/
		public void setUidPolicy(int uid, int policy) {
		try {
		@@ -322,6 +330,8 @@ public class NetworkPolicyManager {
		fout.write("[");
		if ((rules & RULE_REJECT_METERED) != 0) {
		fout.write("REJECT_METERED");
		} else if ((rules & RULE_REJECT_ALL) != 0) {
		fout.write("REJECT_ALL");
		}
		fout.write("]");
		}

core/java/android/os/INetworkManagementService.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -342,7 +342,7 @@ interface INetworkManagementService
		void setFirewallInterfaceRule(String iface, boolean allow);
		void setFirewallEgressSourceRule(String addr, boolean allow);
		void setFirewallEgressDestRule(String addr, int port, boolean allow);
		void setFirewallUidRule(int uid, boolean allow);
		void setFirewallUidRule(int uid, int rule);

		/**
		* Set all packets from users in ranges to go through VPN specified by netId.

services/core/java/com/android/server/ConnectivityService.java

+4 −2

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@ import static android.net.ConnectivityManager.TYPE_VPN;
		import static android.net.ConnectivityManager.getNetworkTypeName;
		import static android.net.ConnectivityManager.isNetworkTypeValid;
		import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL;
		import static android.net.NetworkPolicyManager.RULE_REJECT_ALL;
		import static android.net.NetworkPolicyManager.RULE_REJECT_METERED;

		import android.annotation.Nullable;
		@@ -832,7 +833,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
		uidRules = mUidRules.get(uid, RULE_ALLOW_ALL);
		}

		if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) {
		if ((uidRules & RULE_REJECT_ALL) != 0
		\|\| (networkCostly && (uidRules & RULE_REJECT_METERED) != 0)) {
		return true;
		}

		@@ -3490,7 +3492,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
		synchronized(mRulesLock) {
		uidRules = mUidRules.get(uid, RULE_ALLOW_ALL);
		}
		if ((uidRules & RULE_REJECT_METERED) != 0) {
		if ((uidRules & (RULE_REJECT_METERED \| RULE_REJECT_ALL)) != 0) {
		// we could silently fail or we can filter the available nets to only give
		// them those they have access to. Chose the more useful
		networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED);

services/core/java/com/android/server/NetworkManagementService.java

+72 −13

Original line number	Diff line number	Diff line
		@@ -43,6 +43,7 @@ import android.net.InterfaceConfiguration;
		import android.net.IpPrefix;
		import android.net.LinkAddress;
		import android.net.Network;
		import android.net.NetworkPolicyManager;
		import android.net.NetworkStats;
		import android.net.NetworkUtils;
		import android.net.RouteInfo;
		@@ -107,8 +108,8 @@ import java.util.concurrent.CountDownLatch;
		*/
		public class NetworkManagementService extends INetworkManagementService.Stub
		implements Watchdog.Monitor {
		private static final String TAG = "NetworkManagementService";
		private static final boolean DBG = false;
		private static final String TAG = "NetworkManagement";
		private static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
		private static final String NETD_TAG = "NetdConnector";
		private static final String NETD_SOCKET_NAME = "netd";

		@@ -188,6 +189,9 @@ public class NetworkManagementService extends INetworkManagementService.Stub
		/** Set of UIDs with cleartext penalties. */
		@GuardedBy("mQuotaLock")
		private SparseIntArray mUidCleartextPolicy = new SparseIntArray();
		/** Set of UIDs that are to be blocked/allowed by firewall controller. */
		@GuardedBy("mQuotaLock")
		private SparseIntArray mUidFirewallRules = new SparseIntArray();

		private Object mIdleTimerLock = new Object();
		/** Set of interfaces with active idle timers. */
		@@ -563,10 +567,19 @@ public class NetworkManagementService extends INetworkManagementService.Stub
		setUidCleartextNetworkPolicy(local.keyAt(i), local.valueAt(i));
		}
		}
		}

		// TODO: Push any existing firewall state
		setFirewallEnabled(mFirewallEnabled \|\| LockdownVpnTracker.isEnabled());

		size = mUidFirewallRules.size();
		if (size > 0) {
		Slog.d(TAG, "Pushing " + size + " active firewall UID rules");
		final SparseIntArray uidFirewallRules = mUidFirewallRules;
		mUidFirewallRules = new SparseIntArray();
		for (int i = 0; i < uidFirewallRules.size(); i++) {
		setFirewallUidRule(uidFirewallRules.keyAt(i), uidFirewallRules.valueAt(i));
		}
		}
		}
		}

		/**
		@@ -1899,7 +1912,7 @@ public class NetworkManagementService extends INetworkManagementService.Stub
		public void setFirewallEnabled(boolean enabled) {
		enforceSystemUid();
		try {
		mConnector.execute("firewall", enabled ? "enable" : "disable");
		mConnector.execute("firewall", "enable", enabled ? "whitelist" : "blacklist");
		mFirewallEnabled = enabled;
		} catch (NativeDaemonConnectorException e) {
		throw e.rethrowAsParcelableException();
		@@ -1949,16 +1962,50 @@ public class NetworkManagementService extends INetworkManagementService.Stub
		}

		@Override
		public void setFirewallUidRule(int uid, boolean allow) {
		public void setFirewallUidRule(int uid, int rule) {
		enforceSystemUid();
		if (rule == NetworkPolicyManager.FIREWALL_RULE_ALLOW) {
		Preconditions.checkState(mFirewallEnabled);
		final String rule = allow ? "allow" : "deny";
		}
		synchronized (mQuotaLock) {
		final int oldUidFirewallRule = mUidFirewallRules.get(uid);
		if (DBG) {
		Slog.d(TAG, "oldRule = " + oldUidFirewallRule
		+ ", newRule=" + rule + " for uid=" + uid);
		}
		if (oldUidFirewallRule == rule) {
		if (DBG) Slog.d(TAG, "!!!!! Skipping change");
		// TODO: eventually consider throwing
		return;
		}

		try {
		mConnector.execute("firewall", "set_uid_rule", uid, rule);
		String ruleName;
		if (isFirewallEnabled()) { // Whitelist mode
		if (rule == NetworkPolicyManager.FIREWALL_RULE_ALLOW) {
		ruleName = "allow";
		} else {
		ruleName = "deny";
		}
		} else { // Blacklist mode
		if (rule == NetworkPolicyManager.FIREWALL_RULE_DENY) {
		ruleName = "deny";
		} else {
		ruleName = "allow";
		}
		}

		if (rule == NetworkPolicyManager.FIREWALL_RULE_DEFAULT) {
		mUidFirewallRules.delete(uid);
		} else {
		mUidFirewallRules.put(uid, rule);
		}
		mConnector.execute("firewall", "set_uid_rule", uid, ruleName);
		} catch (NativeDaemonConnectorException e) {
		throw e.rethrowAsParcelableException();
		}
		}
		}

		private static void enforceSystemUid() {
		final int uid = Binder.getCallingUid();
		@@ -2072,6 +2119,18 @@ public class NetworkManagementService extends INetworkManagementService.Stub
		pw.println("]");
		}

		synchronized (mUidFirewallRules) {
		pw.print("UID firewall rule: [");
		final int size = mUidFirewallRules.size();
		for (int i = 0; i < size; i++) {
		pw.print(mUidFirewallRules.keyAt(i));
		pw.print(":");
		pw.print(mUidFirewallRules.valueAt(i));
		if (i < size - 1) pw.print(",");
		}
		pw.println("]");
		}

		synchronized (mIdleTimerLock) {
		pw.println("Idle timers:");
		for (HashMap.Entry<String, IdleTimerParams> ent : mActiveIdleTimers.entrySet()) {

services/core/java/com/android/server/net/LockdownVpnTracker.java

+7 −4

Original line number	Diff line number	Diff line
		@@ -17,6 +17,8 @@
		package com.android.server.net;

		import static android.Manifest.permission.CONNECTIVITY_INTERNAL;
		import static android.net.NetworkPolicyManager.FIREWALL_RULE_ALLOW;
		import static android.net.NetworkPolicyManager.FIREWALL_RULE_DEFAULT;

		import android.app.Notification;
		import android.app.NotificationManager;
		@@ -31,6 +33,7 @@ import android.net.LinkAddress;
		import android.net.NetworkInfo;
		import android.net.NetworkInfo.DetailedState;
		import android.net.NetworkInfo.State;
		import android.net.NetworkPolicyManager;
		import android.os.INetworkManagementService;
		import android.os.RemoteException;
		import android.security.Credentials;
		@@ -198,8 +201,8 @@ public class LockdownVpnTracker {
		setFirewallEgressSourceRule(addr, true);
		}

		mNetService.setFirewallUidRule(ROOT_UID, true);
		mNetService.setFirewallUidRule(Os.getuid(), true);
		mNetService.setFirewallUidRule(ROOT_UID, FIREWALL_RULE_ALLOW);
		mNetService.setFirewallUidRule(Os.getuid(), FIREWALL_RULE_ALLOW);

		mErrorCount = 0;
		mAcceptedIface = iface;
		@@ -288,8 +291,8 @@ public class LockdownVpnTracker {
		setFirewallEgressSourceRule(addr, false);
		}

		mNetService.setFirewallUidRule(ROOT_UID, false);
		mNetService.setFirewallUidRule(Os.getuid(), false);
		mNetService.setFirewallUidRule(ROOT_UID, FIREWALL_RULE_DEFAULT);
		mNetService.setFirewallUidRule(Os.getuid(), FIREWALL_RULE_DEFAULT);

		mAcceptedSourceAddr = null;
		}