remember and report network score (2ab9089d) · Commits · e / os / android_frameworks_base

core/java/android/net/NetworkAgent.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,11 @@ public abstract class NetworkAgent extends Handler {
		*/
		public static final int EVENT_NETWORK_PROPERTIES_CHANGED = BASE + 3;

		/* centralize place where base network score, and network score scaling, will be
		* stored, so as we can consistently compare apple and oranges, or wifi, ethernet and LTE
		*/
		public static final int WIFI_BASE_SCORE = 60;

		/**
		* Sent by the NetworkAgent to ConnectivityService to pass the current
		* network score.

wifi/java/android/net/wifi/RssiPacketCountInfo.java

+5 −1

Original line number	Diff line number	Diff line
		@@ -34,14 +34,17 @@ public class RssiPacketCountInfo implements Parcelable {

		public int txbad;

		public int rxgood;

		public RssiPacketCountInfo() {
		rssi = txgood = txbad = 0;
		rssi = txgood = txbad = rxgood = 0;
		}

		private RssiPacketCountInfo(Parcel in) {
		rssi = in.readInt();
		txgood = in.readInt();
		txbad = in.readInt();
		rxgood = in.readInt();
		}

		@Override
		@@ -49,6 +52,7 @@ public class RssiPacketCountInfo implements Parcelable {
		out.writeInt(rssi);
		out.writeInt(txgood);
		out.writeInt(txbad);
		out.writeInt(rxgood);
		}

		@Override

wifi/java/android/net/wifi/WifiConfiguration.java

+95 −32

Original line number	Diff line number	Diff line
		@@ -347,9 +347,64 @@ public class WifiConfiguration implements Parcelable {
		*/
		public HashMap<String, ScanResult> scanResultCache;

		/** The Below RSSI thresholds are used to configure AutoJoin
		* - GOOD/LOW/BAD thresholds are used so as to calculate link score
		* - UNWANTED_SOFT are used by the blacklisting logic so as to handle the unwanted network message coming from CS
		* - UNBLACKLIST thresholds are used so as to tweak the speed at which the network is unblacklisted (i.e. if
		* it is seen with good RSSI, it is blacklisted faster)
		* - INITIAL_AUTOJOIN_ATTEMPT, used to determine how close from the network we need to be before autojoin kicks in
		*/
		/ @hide /
		public static int INVALID_RSSI = -127;

		/ @hide /
		public static int UNWANTED_BLACKLIST_SOFT_RSSI_24 = -80;

		/ @hide /
		public static int UNWANTED_BLACKLIST_SOFT_RSSI_5 = -70;

		/ @hide /
		public static int GOOD_RSSI_24 = -65;

		/ @hide /
		public static int LOW_RSSI_24 = -75;

		/ @hide /
		public static int BAD_RSSI_24 = -85;

		/ @hide /
		public static int GOOD_RSSI_5 = -55;

		/ @hide /
		public static int LOW_RSSI_5 = -65;

		/ @hide /
		public static int BAD_RSSI_5 = -75;

		/ @hide /
		public static int UNWANTED_BLACKLIST_SOFT_BUMP = 4;

		/ @hide /
		public static int UNWANTED_BLACKLIST_HARD_BUMP = 8;

		/ @hide /
		public static int UNBLACKLIST_THRESHOLD_24_SOFT = -75;

		/ @hide /
		public static int UNBLACKLIST_THRESHOLD_24_HARD = -68;

		/ @hide /
		public static int UNBLACKLIST_THRESHOLD_5_SOFT = -63;

		/ @hide /
		public static int UNBLACKLIST_THRESHOLD_5_HARD = -56;

		/ @hide /
		public static int INITIAL_AUTO_JOIN_ATTEMPT_MIN_24 = -80;

		/ @hide /
		public static int INITIAL_AUTO_JOIN_ATTEMPT_MIN_5 = -70;

		/**
		* @hide
		* A summary of the RSSI and Band status for that configuration
		@@ -456,7 +511,7 @@ public class WifiConfiguration implements Parcelable {

		/** @hide */
		public static final int AUTO_JOIN_ENABLED = 0;
		/** @hide
		/**
		* if this is set, the WifiConfiguration cannot use linkages so as to bump
		* it's relative priority.
		* - status between and 128 indicate various level of blacklisting depending
		@@ -465,7 +520,17 @@ public class WifiConfiguration implements Parcelable {
		* although it may have been self added we will not re-self-add it, ignore it,
		* not return it to applications, and not connect to it
		* */

		/** @hide
		* network was temporary disabled due to bad connection, most likely due
		* to weak RSSI */
		public static final int AUTO_JOIN_TEMPORARY_DISABLED = 1;
		/** @hide
		* network was temporary disabled due to bad connection, which cant be attributed
		* to weak RSSI */
		public static final int AUTO_JOIN_TEMPORARY_DISABLED_LINK_ERRORS = 32;
		/** @hide */
		public static final int AUTO_JOIN_TEMPORARY_DISABLED_AT_SUPPLICANT = 64;
		/** @hide */
		public static final int AUTO_JOIN_DISABLED_ON_AUTH_FAILURE = 128;
		/** @hide */
		@@ -476,6 +541,13 @@ public class WifiConfiguration implements Parcelable {
		*/
		public int autoJoinStatus;


		/**
		* @hide
		*/
		public long blackListTimestamp;


		/**
		* Set if the configuration was self added by the framework
		* This boolean is cleared if we get a connect/save/ update or
		@@ -614,6 +686,16 @@ public class WifiConfiguration implements Parcelable {
		return mostRecent;
		}

		/ @hide /
		public void setAutoJoinStatus(int status) {
		if (status == 0) {
		blackListTimestamp = 0;
		} else if (status > autoJoinStatus) {
		blackListTimestamp = System.currentTimeMillis();
		}
		autoJoinStatus = status;
		}

		@Override
		public String toString() {
		StringBuilder sbuf = new StringBuilder();
		@@ -697,6 +779,15 @@ public class WifiConfiguration implements Parcelable {
		if (selfAdded) sbuf.append("selfAdded");
		if (creatorUid != 0) sbuf.append("uid=" + Integer.toString(creatorUid));

		if (blackListTimestamp != 0) {
		long now_ms = System.currentTimeMillis();
		long diff = now_ms - blackListTimestamp;
		if (diff <= 0) {
		sbuf.append("blackListed since <incorrect>");
		} else {
		sbuf.append("blackListed since ").append(Long.toString(diff/1000)).append( "sec");
		}
		}

		return sbuf.toString();
		}
		@@ -987,6 +1078,7 @@ public class WifiConfiguration implements Parcelable {
		lastUpdateUid = source.lastUpdateUid;
		creatorUid = source.creatorUid;
		peerWifiConfiguration = source.peerWifiConfiguration;
		blackListTimestamp = source.blackListTimestamp;
		}
		}

		@@ -1030,17 +1122,7 @@ public class WifiConfiguration implements Parcelable {
		dest.writeInt(creatorUid);
		dest.writeInt(lastConnectUid);
		dest.writeInt(lastUpdateUid);
		/*
		TODO: should we write the cache results to the parcel?
		if (scanResultCache != null) {
		dest.writeInt(WifiConfiguration.SCAN_CACHE_TAG);
		dest.writeInt(scanResultCache.size());
		for (ScanResult result : scanResultCache.values()) {
		result.writeToParcel(dest, flags);
		}
		} else {
		dest.writeInt(WifiConfiguration.NOTHING_TAG);
		}*/
		dest.writeLong(blackListTimestamp);
		}

		/** Implement the Parcelable interface {@hide} */
		@@ -1079,26 +1161,7 @@ public class WifiConfiguration implements Parcelable {
		config.creatorUid = in.readInt();
		config.lastConnectUid = in.readInt();
		config.lastUpdateUid = in.readInt();
		/*
		TODO: should we write the cache results to the parcel?
		boolean done = false;
		do {
		int tag = in.readInt();
		switch (tag) {
		case WifiConfiguration.SCAN_CACHE_TAG:
		int size = in.readInt();
		config.scanResultCache = new HashMap<String, ScanResult>();
		while (size > 0) {
		ScanResult result = ScanResult.CREATOR.createFromParcel(in);
		config.scanResultCache.put(result.BSSID, result);
		size--;
		}
		break;
		case WifiConfiguration.NOTHING_TAG:
		done = true;
		break;
		}
		} while (!done);*/
		config.blackListTimestamp = in.readLong();
		return config;
		}

wifi/java/android/net/wifi/WifiInfo.java

+134 −6

Original line number	Diff line number	Diff line
		@@ -62,20 +62,107 @@ public class WifiInfo implements Parcelable {
		private String mBSSID;
		private WifiSsid mWifiSsid;
		private int mNetworkId;
		/** Received Signal Strength Indicator */
		/**
		* Received Signal Strength Indicator
		*/
		private int mRssi;

		/** Link speed in Mbps */
		/**
		* Link speed in Mbps
		*/
		public static final String LINK_SPEED_UNITS = "Mbps";
		private int mLinkSpeed;

		/** Frequency in MHz */
		/**
		* Frequency in MHz
		*/
		public static final String FREQUENCY_UNITS = "MHz";
		private int mFrequency;

		private InetAddress mIpAddress;
		private String mMacAddress;

		/**
		* @hide
		*/
		public long txBad;
		/**
		* @hide
		*/
		public long txRetries;
		/**
		* @hide
		*/
		public long txSuccess;
		/**
		* @hide
		*/
		public long rxSuccess;
		/**
		* @hide
		*/
		public double txBadRate;
		/**
		* @hide
		*/
		public double txRetriesRate;
		/**
		* @hide
		*/
		public double txSuccessRate;
		/**
		* @hide
		*/
		public double rxSuccessRate;

		/**
		* @hide
		*/
		public int badRssiCount;

		/**
		* @hide
		*/
		public int lowRssiCount;

		/**
		* @hide *
		*/
		public int score;

		/**
		* @hide *
		*/
		public void updatePacketRates(WifiLinkLayerStats stats) {
		if (stats != null) {
		long txgood = stats.txmpdu_be + stats.txmpdu_bk + stats.txmpdu_vi + stats.txmpdu_vo;
		long txretries = stats.retries_be + stats.retries_bk
		+ stats.retries_vi + stats.retries_vo;
		long rxgood = stats.rxmpdu_be + stats.rxmpdu_bk + stats.rxmpdu_vi + stats.rxmpdu_vo;
		long txbad = stats.lostmpdu_be + stats.lostmpdu_bk
		+ stats.lostmpdu_vi + stats.lostmpdu_vo;

		txBadRate = (txBadRate * 0.5)
		+ ((double) (txbad - txBad) * 0.5);
		txSuccessRate = (txSuccessRate * 0.5)
		+ ((double) (txgood - txSuccess) * 0.5);
		rxSuccessRate = (rxSuccessRate * 0.5)
		+ ((double) (rxgood - rxSuccess) * 0.5);
		txRetriesRate = (txRetriesRate * 0.5)
		+ ((double) (txretries - txRetries) * 0.5);

		txBad = txbad;
		txSuccess = txgood;
		rxSuccess = rxgood;
		txRetries = txretries;
		} else {
		txBadRate = 0;
		txSuccess = 0;
		rxSuccess = 0;
		txRetries = 0;
		}
		}

		/**
		* Flag indicating that AP has hinted that upstream connection is metered,
		* and sensitive to heavy data transfers.
		@@ -109,6 +196,17 @@ public class WifiInfo implements Parcelable {
		mIpAddress = source.mIpAddress;
		mMacAddress = source.mMacAddress;
		mMeteredHint = source.mMeteredHint;
		txBad = source.txBad;
		txRetries = source.txRetries;
		txSuccess = source.txSuccess;
		rxSuccess = source.rxSuccess;
		txBadRate = source.txBadRate;
		txRetriesRate = source.txRetriesRate;
		txSuccessRate = source.txSuccessRate;
		rxSuccessRate = source.rxSuccessRate;
		score = source.score;
		badRssiCount = source.badRssiCount;
		lowRssiCount = source.lowRssiCount;
		}
		}

		@@ -197,6 +295,22 @@ public class WifiInfo implements Parcelable {
		this.mFrequency = frequency;
		}

		/**
		* @hide
		* TODO: makes real freq boundaries
		*/
		public boolean is24GHz() {
		return mFrequency < 4000;
		}

		/**
		* @hide
		* TODO: makes real freq boundaries
		*/
		public boolean is5GHz() {
		return mFrequency > 4000;
		}

		/**
		* Record the MAC address of the WLAN interface
		* @param macAddress the MAC address in {@code XX:XX:XX:XX:XX:XX} form
		@@ -325,8 +439,8 @@ public class WifiInfo implements Parcelable {
		append(", Link speed: ").append(mLinkSpeed).append(LINK_SPEED_UNITS).
		append(", Frequency: ").append(mFrequency).append(FREQUENCY_UNITS).
		append(", Net ID: ").append(mNetworkId).
		append(", Metered hint: ").append(mMeteredHint);

		append(", Metered hint: ").append(mMeteredHint).
		append(", score: ").append(Integer.toString(score));
		return sb.toString();
		}

		@@ -356,6 +470,13 @@ public class WifiInfo implements Parcelable {
		dest.writeString(mBSSID);
		dest.writeString(mMacAddress);
		dest.writeInt(mMeteredHint ? 1 : 0);
		dest.writeInt(score);
		dest.writeDouble(txSuccessRate);
		dest.writeDouble(txRetriesRate);
		dest.writeDouble(txBadRate);
		dest.writeDouble(rxSuccessRate);
		dest.writeInt(badRssiCount);
		dest.writeInt(lowRssiCount);
		mSupplicantState.writeToParcel(dest, flags);
		}

		@@ -379,6 +500,13 @@ public class WifiInfo implements Parcelable {
		info.mBSSID = in.readString();
		info.mMacAddress = in.readString();
		info.mMeteredHint = in.readInt() != 0;
		info.score = in.readInt();
		info.txSuccessRate = in.readDouble();
		info.txRetriesRate = in.readDouble();
		info.txBadRate = in.readDouble();
		info.rxSuccessRate = in.readDouble();
		info.badRssiCount = in.readInt();
		info.lowRssiCount = in.readInt();
		info.mSupplicantState = SupplicantState.CREATOR.createFromParcel(in);
		return info;
		}

wifi/java/android/net/wifi/WifiLinkLayerStats.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -111,6 +111,8 @@ public class WifiLinkLayerStats implements Parcelable {
		/** {@hide} */
		public String toString() {
		StringBuilder sbuf = new StringBuilder();
		sbuf.append(" WifiLinkLayerStats: ").append('\n');

		if (this.SSID != null) {
		sbuf.append(" SSID: ").append(this.SSID).append('\n');
		}