Merge changes I6f5e22e3,I6c486303 into sc-dev (4a8feb15) · Commits · e / os / android_frameworks_base

core/api/system-current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -7577,9 +7577,11 @@ package android.net.netstats.provider {
		method public void notifyAlertReached();
		method public void notifyLimitReached();
		method public void notifyStatsUpdated(int, @NonNull android.net.NetworkStats, @NonNull android.net.NetworkStats);
		method public void notifyWarningReached();
		method public abstract void onRequestStatsUpdate(int);
		method public abstract void onSetAlert(long);
		method public abstract void onSetLimit(@NonNull String, long);
		method public void onSetWarningAndLimit(@NonNull String, long, long);
		field public static final int QUOTA_UNLIMITED = -1; // 0xffffffff
		}

core/java/android/net/netstats/provider/NetworkStatsProvider.java

+0 −7

Original line number	Diff line number	Diff line
		@@ -147,10 +147,7 @@ public abstract class NetworkStatsProvider {

		/**
		* Notify system that the warning set by {@link #onSetWarningAndLimit} has been reached.
		*
		* @hide
		*/
		// TODO: Expose as system API.
		public void notifyWarningReached() {
		try {
		// Reuse the code path to notify warning reached with limit reached
		@@ -198,7 +195,6 @@ public abstract class NetworkStatsProvider {
		* @param quotaBytes the quota defined as the number of bytes, starting from zero and counting
		* from now. A value of {@link #QUOTA_UNLIMITED} indicates there is no limit.
		*/
		// TODO: deprecate this once onSetWarningAndLimit is ready.
		public abstract void onSetLimit(@NonNull String iface, long quotaBytes);

		/**
		@@ -217,10 +213,7 @@ public abstract class NetworkStatsProvider {
		* there is no warning.
		* @param limitBytes the limit defined as the number of bytes, starting from zero and counting
		* from now. A value of {@link #QUOTA_UNLIMITED} indicates there is no limit.
		*
		* @hide
		*/
		// TODO: Expose as system API.
		public void onSetWarningAndLimit(@NonNull String iface, long warningBytes, long limitBytes) {
		// Backward compatibility for those who didn't override this function.
		onSetLimit(iface, limitBytes);

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

+59 −30

Original line number	Diff line number	Diff line
		@@ -422,8 +422,8 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		private static final int MSG_LIMIT_REACHED = 5;
		private static final int MSG_RESTRICT_BACKGROUND_CHANGED = 6;
		private static final int MSG_ADVISE_PERSIST_THRESHOLD = 7;
		private static final int MSG_UPDATE_INTERFACE_QUOTA = 10;
		private static final int MSG_REMOVE_INTERFACE_QUOTA = 11;
		private static final int MSG_UPDATE_INTERFACE_QUOTAS = 10;
		private static final int MSG_REMOVE_INTERFACE_QUOTAS = 11;
		private static final int MSG_POLICIES_CHANGED = 13;
		private static final int MSG_RESET_FIREWALL_RULES_BY_UID = 15;
		private static final int MSG_SUBSCRIPTION_OVERRIDE = 16;
		@@ -2035,33 +2035,44 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		final boolean hasWarning = policy.warningBytes != LIMIT_DISABLED;
		final boolean hasLimit = policy.limitBytes != LIMIT_DISABLED;
		long limitBytes = Long.MAX_VALUE;
		if (hasLimit && policy.hasCycle()) {
		long warningBytes = Long.MAX_VALUE;
		if ((hasLimit \|\| hasWarning) && policy.hasCycle()) {
		final Pair<ZonedDateTime, ZonedDateTime> cycle = NetworkPolicyManager
		.cycleIterator(policy).next();
		final long start = cycle.first.toInstant().toEpochMilli();
		final long end = cycle.second.toInstant().toEpochMilli();
		final long totalBytes = getTotalBytes(policy.template, start, end);

		if (policy.lastLimitSnooze < start) {
		// If the limit notification is not snoozed, the limit quota needs to be calculated.
		if (hasLimit && policy.lastLimitSnooze < start) {
		// remaining "quota" bytes are based on total usage in
		// current cycle. kernel doesn't like 0-byte rules, so we
		// set 1-byte quota and disable the radio later.
		limitBytes = Math.max(1, policy.limitBytes - totalBytes);
		}

		// If the warning notification was snoozed by user, or the service already knows
		// it is over warning bytes, doesn't need to calculate warning bytes.
		if (hasWarning && policy.lastWarningSnooze < start
		&& !policy.isOverWarning(totalBytes)) {
		warningBytes = Math.max(1, policy.warningBytes - totalBytes);
		}
		}

		if (hasLimit \|\| policy.metered) {
		if (hasWarning \|\| hasLimit \|\| policy.metered) {
		if (matchingIfaces.size() > 1) {
		// TODO: switch to shared quota once NMS supports
		Slog.w(TAG, "shared quota unsupported; generating rule for each iface");
		}

		// Set the interface limit. For interfaces which has no cycle, or metered with
		// no policy limit, or snoozed limit notification; we still need to put iptables
		// rule hooks to restrict apps for data saver, so push really high quota.
		// Set the interface warning and limit. For interfaces which has no cycle,
		// or metered with no policy quotas, or snoozed notification; we still need to put
		// iptables rule hooks to restrict apps for data saver, so push really high quota.
		// TODO: Push NetworkStatsProvider.QUOTA_UNLIMITED instead of Long.MAX_VALUE to
		// providers.
		for (int j = matchingIfaces.size() - 1; j >= 0; j--) {
		final String iface = matchingIfaces.valueAt(j);
		setInterfaceQuotaAsync(iface, limitBytes);
		setInterfaceQuotasAsync(iface, warningBytes, limitBytes);
		newMeteredIfaces.add(iface);
		}
		}
		@@ -2084,7 +2095,7 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		for (int j = matchingIfaces.size() - 1; j >= 0; j--) {
		final String iface = matchingIfaces.valueAt(j);
		if (!newMeteredIfaces.contains(iface)) {
		setInterfaceQuotaAsync(iface, Long.MAX_VALUE);
		setInterfaceQuotasAsync(iface, Long.MAX_VALUE, Long.MAX_VALUE);
		newMeteredIfaces.add(iface);
		}
		}
		@@ -2096,7 +2107,7 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		for (int i = mMeteredIfaces.size() - 1; i >= 0; i--) {
		final String iface = mMeteredIfaces.valueAt(i);
		if (!newMeteredIfaces.contains(iface)) {
		removeInterfaceQuotaAsync(iface);
		removeInterfaceQuotasAsync(iface);
		}
		}
		mMeteredIfaces = newMeteredIfaces;
		@@ -5036,19 +5047,20 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		mNetworkStats.advisePersistThreshold(persistThreshold);
		return true;
		}
		case MSG_UPDATE_INTERFACE_QUOTA: {
		final String iface = (String) msg.obj;
		// int params need to be stitched back into a long
		final long quota = ((long) msg.arg1 << 32) \| (msg.arg2 & 0xFFFFFFFFL);
		removeInterfaceQuota(iface);
		setInterfaceQuota(iface, quota);
		mNetworkStats.setStatsProviderLimitAsync(iface, quota);
		case MSG_UPDATE_INTERFACE_QUOTAS: {
		final IfaceQuotas val = (IfaceQuotas) msg.obj;
		// TODO: Consider set a new limit before removing the original one.
		removeInterfaceLimit(val.iface);
		setInterfaceLimit(val.iface, val.limit);
		mNetworkStats.setStatsProviderWarningAndLimitAsync(val.iface, val.warning,
		val.limit);
		return true;
		}
		case MSG_REMOVE_INTERFACE_QUOTA: {
		case MSG_REMOVE_INTERFACE_QUOTAS: {
		final String iface = (String) msg.obj;
		removeInterfaceQuota(iface);
		mNetworkStats.setStatsProviderLimitAsync(iface, QUOTA_UNLIMITED);
		removeInterfaceLimit(iface);
		mNetworkStats.setStatsProviderWarningAndLimitAsync(iface, QUOTA_UNLIMITED,
		QUOTA_UNLIMITED);
		return true;
		}
		case MSG_RESET_FIREWALL_RULES_BY_UID: {
		@@ -5196,15 +5208,32 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		}
		}

		private void setInterfaceQuotaAsync(String iface, long quotaBytes) {
		// long quotaBytes split up into two ints to fit in message
		mHandler.obtainMessage(MSG_UPDATE_INTERFACE_QUOTA, (int) (quotaBytes >> 32),
		(int) (quotaBytes & 0xFFFFFFFF), iface).sendToTarget();
		private static final class IfaceQuotas {
		@NonNull public final String iface;
		// Warning and limit bytes of interface qutoas, could be QUOTA_UNLIMITED or Long.MAX_VALUE
		// if not set. 0 is not acceptable since kernel doesn't like 0-byte rules.
		public final long warning;
		public final long limit;

		private IfaceQuotas(@NonNull String iface, long warning, long limit) {
		this.iface = iface;
		this.warning = warning;
		this.limit = limit;
		}
		}

		private void setInterfaceQuotasAsync(@NonNull String iface,
		long warningBytes, long limitBytes) {
		mHandler.obtainMessage(MSG_UPDATE_INTERFACE_QUOTAS,
		new IfaceQuotas(iface, warningBytes, limitBytes)).sendToTarget();
		}

		private void setInterfaceQuota(String iface, long quotaBytes) {
		private void setInterfaceLimit(String iface, long limitBytes) {
		try {
		mNetworkManager.setInterfaceQuota(iface, quotaBytes);
		// For legacy design the data warning is covered by global alert, where the
		// kernel will notify upper layer for a small amount of change of traffic
		// statistics. Thus, passing warning is not needed.
		mNetworkManager.setInterfaceQuota(iface, limitBytes);
		} catch (IllegalStateException e) {
		Log.wtf(TAG, "problem setting interface quota", e);
		} catch (RemoteException e) {
		@@ -5212,11 +5241,11 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		}
		}

		private void removeInterfaceQuotaAsync(String iface) {
		mHandler.obtainMessage(MSG_REMOVE_INTERFACE_QUOTA, iface).sendToTarget();
		private void removeInterfaceQuotasAsync(String iface) {
		mHandler.obtainMessage(MSG_REMOVE_INTERFACE_QUOTAS, iface).sendToTarget();
		}

		private void removeInterfaceQuota(String iface) {
		private void removeInterfaceLimit(String iface) {
		try {
		mNetworkManager.removeInterfaceQuota(iface);
		} catch (IllegalStateException e) {

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

+3 −2

Original line number	Diff line number	Diff line
		@@ -37,8 +37,9 @@ public abstract class NetworkStatsManagerInternal {
		public abstract void forceUpdate();

		/**
		* Set the quota limit to all registered custom network stats providers.
		* Set the warning and limit to all registered custom network stats providers.
		* Note that invocation of any interface will be sent to all providers.
		*/
		public abstract void setStatsProviderLimitAsync(@NonNull String iface, long quota);
		public abstract void setStatsProviderWarningAndLimitAsync(@NonNull String iface, long warning,
		long limit);
		}

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

+7 −4

Original line number	Diff line number	Diff line
		@@ -1674,11 +1674,14 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
		}

		@Override
		public void setStatsProviderLimitAsync(@NonNull String iface, long quota) {
		if (LOGV) Slog.v(TAG, "setStatsProviderLimitAsync(" + iface + "," + quota + ")");
		// TODO: Set warning accordingly.
		public void setStatsProviderWarningAndLimitAsync(
		@NonNull String iface, long warning, long limit) {
		if (LOGV) {
		Slog.v(TAG, "setStatsProviderWarningAndLimitAsync("
		+ iface + "," + warning + "," + limit + ")");
		}
		invokeForAllStatsProviderCallbacks((cb) -> cb.mProvider.onSetWarningAndLimit(iface,
		NetworkStatsProvider.QUOTA_UNLIMITED, quota));
		warning, limit));
		}
		}