am df1734e3: Fix lease duration handling (a4644307) · Commits · e / os / android_frameworks_base

wifi/java/android/net/wifi/WifiStateTracker.java

+19 −12

Original line number	Diff line number	Diff line
		@@ -166,6 +166,9 @@ public class WifiStateTracker extends NetworkStateTracker {
		*/
		private static final int DEFAULT_MAX_DHCP_RETRIES = 9;

		//Minimum dhcp lease duration for renewal
		private static final int MIN_RENEWAL_TIME_SECS = 5 * 60; //5 minutes

		private static final int DRIVER_POWER_MODE_AUTO = 0;
		private static final int DRIVER_POWER_MODE_ACTIVE = 1;

		@@ -2507,13 +2510,7 @@ public class WifiStateTracker extends NetworkStateTracker {
		if (NetworkUtils.runDhcp(mInterfaceName, mDhcpInfo)) {
		event = EVENT_INTERFACE_CONFIGURATION_SUCCEEDED;
		Log.d(TAG, "DHCP succeeded with lease: " + mDhcpInfo.leaseDuration);
		//Do it a bit earlier than half the lease duration time
		//to beat the native DHCP client and avoid extra packets
		//48% for one hour lease time = 29 minutes
		mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
		SystemClock.elapsedRealtime() +
		mDhcpInfo.leaseDuration * 480, //in milliseconds
		mDhcpRenewalIntent);
		setDhcpRenewalAlarm(mDhcpInfo.leaseDuration);
		} else {
		event = EVENT_INTERFACE_CONFIGURATION_FAILED;
		Log.e(TAG, "DHCP request failed: " + NetworkUtils.getDhcpError());
		@@ -2551,10 +2548,7 @@ public class WifiStateTracker extends NetworkStateTracker {
		msg.sendToTarget();
		}

		mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
		SystemClock.elapsedRealtime() +
		mDhcpInfo.leaseDuration * 480,
		mDhcpRenewalIntent);
		setDhcpRenewalAlarm(mDhcpInfo.leaseDuration);
		} else {
		event = EVENT_INTERFACE_CONFIGURATION_FAILED;
		Log.d(TAG, "DHCP renewal failed: " + NetworkUtils.getDhcpError());
		@@ -2602,6 +2596,19 @@ public class WifiStateTracker extends NetworkStateTracker {
		return state == BluetoothHeadset.STATE_DISCONNECTED;
		}

		private void setDhcpRenewalAlarm(long leaseDuration) {
		//Do it a bit earlier than half the lease duration time
		//to beat the native DHCP client and avoid extra packets
		//48% for one hour lease time = 29 minutes
		if (leaseDuration < MIN_RENEWAL_TIME_SECS) {
		leaseDuration = MIN_RENEWAL_TIME_SECS;
		}
		mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
		SystemClock.elapsedRealtime() +
		leaseDuration * 480, //in milliseconds
		mDhcpRenewalIntent);
		}

		}

		private void checkUseStaticIp() {