packages/SettingsProvider/src/com/android/providers/settings/WiFiConfigurationSerializer.java - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License
  */

 package com.android.providers.settings;

 import android.net.IpConfiguration;
 import android.net.LinkAddress;
 import android.net.ProxyInfo;
 import android.net.StaticIpConfiguration;
 import android.net.wifi.WifiConfiguration;
 import android.util.Log;

 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.nio.ByteBuffer;
 import java.util.BitSet;


 /**
  * Backup/Restore Serializer Class for com.android.net.wifi.WifiConfiguration
  */
 public class WiFiConfigurationSerializer {
     private static final boolean DEBUG = false;
     private static final String TAG = "WiFiConfigSerializer";

     private static final int NULL = 0;
     private static final int NOT_NULL = 1;
     /**
      * Current Version of the Serializer.
      */
     private static int STATE_VERSION = 1;


     /**
      * Marshals a WifiConfig object into a byte-array.
      *
      * @param wifiConfig - WifiConfiguration to be Marshalled
      * @return byte array
      */

     public static byte[] marshalWifiConfig(WifiConfiguration wifiConfig) {
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         if(wifiConfig != null) {
             DataOutputStream out = new DataOutputStream(baos);
             try {
                 out.writeInt(STATE_VERSION);
                 out.writeInt(wifiConfig.networkId);
                 out.writeInt(wifiConfig.status);
                 out.writeInt(wifiConfig.disableReason);
                 writeString(out, wifiConfig.SSID);
                 writeString(out, wifiConfig.BSSID);
                 out.writeInt(wifiConfig.apBand);
                 out.writeInt(wifiConfig.apChannel);
                 writeString(out, wifiConfig.autoJoinBSSID);
                 writeString(out, wifiConfig.FQDN);
                 writeString(out, wifiConfig.providerFriendlyName);
                 out.writeInt(wifiConfig.roamingConsortiumIds.length);
                 for (long id : wifiConfig.roamingConsortiumIds) {
                     out.writeLong(id);
                 }
                 writeString(out, wifiConfig.preSharedKey);
                 for (String wepKey : wifiConfig.wepKeys) {
                     writeString(out, wepKey);
                 }
                 out.writeInt(wifiConfig.wepTxKeyIndex);
                 out.writeInt(wifiConfig.priority);
                 out.writeInt(wifiConfig.hiddenSSID ? 1 : 0);
                 out.writeInt(wifiConfig.requirePMF ? 1 : 0);
                 writeString(out, wifiConfig.updateIdentifier);

                 writeBitSet(out, wifiConfig.allowedKeyManagement);
                 writeBitSet(out, wifiConfig.allowedProtocols);
                 writeBitSet(out, wifiConfig.allowedAuthAlgorithms);
                 writeBitSet(out, wifiConfig.allowedPairwiseCiphers);
                 writeBitSet(out, wifiConfig.allowedGroupCiphers);


                 //IpConfiguration
                 writeIpConfiguration(out, wifiConfig.getIpConfiguration());

                 writeString(out, wifiConfig.dhcpServer);
                 writeString(out, wifiConfig.defaultGwMacAddress);
                 out.writeInt(wifiConfig.autoJoinStatus);
                 out.writeInt(wifiConfig.selfAdded ? 1 : 0);
                 out.writeInt(wifiConfig.didSelfAdd ? 1 : 0);
                 out.writeInt(wifiConfig.validatedInternetAccess ? 1 : 0);
                 out.writeInt(wifiConfig.ephemeral ? 1 : 0);
                 out.writeInt(wifiConfig.creatorUid);
                 out.writeInt(wifiConfig.lastConnectUid);
                 out.writeInt(wifiConfig.lastUpdateUid);
                 writeString(out, wifiConfig.creatorName);
                 writeString(out, wifiConfig.lastUpdateName);
                 out.writeLong(wifiConfig.blackListTimestamp);
                 out.writeLong(wifiConfig.lastConnectionFailure);
                 out.writeLong(wifiConfig.lastRoamingFailure);
                 out.writeInt(wifiConfig.lastRoamingFailureReason);
                 out.writeLong(wifiConfig.roamingFailureBlackListTimeMilli);
                 out.writeLong(wifiConfig.numConnectionFailures);
                 out.writeLong(wifiConfig.numIpConfigFailures);
                 out.writeInt(wifiConfig.numAuthFailures);
                 out.writeInt(wifiConfig.numScorerOverride);
                 out.writeInt(wifiConfig.numScorerOverrideAndSwitchedNetwork);
                 out.writeInt(wifiConfig.numAssociation);
                 out.writeInt(wifiConfig.numUserTriggeredWifiDisableLowRSSI);
                 out.writeInt(wifiConfig.numUserTriggeredWifiDisableBadRSSI);
                 out.writeInt(wifiConfig.numUserTriggeredWifiDisableNotHighRSSI);
                 out.writeInt(wifiConfig.numTicksAtLowRSSI);
                 out.writeInt(wifiConfig.numTicksAtBadRSSI);
                 out.writeInt(wifiConfig.numTicksAtNotHighRSSI);
                 out.writeInt(wifiConfig.numUserTriggeredJoinAttempts);
                 out.writeInt(wifiConfig.autoJoinUseAggressiveJoinAttemptThreshold);
                 out.writeInt(wifiConfig.autoJoinBailedDueToLowRssi ? 1 : 0);
                 out.writeInt(wifiConfig.userApproved);
                 out.writeInt(wifiConfig.numNoInternetAccessReports);
                 out.writeInt(wifiConfig.noInternetAccessExpected ? 1 : 0);
             } catch (IOException ioe) {
                 Log.e(TAG, "Failed to Convert WifiConfiguration to byte array", ioe);
                 baos.reset();
             }
         }
         return baos.toByteArray();
     }

     /**
      * Unmarshals a byte array into a WifiConfig Object
      *
      * @param data - marshalled WifiConfig Object
      * @return WifiConfiguration Object
      */

     public static WifiConfiguration unmarshalWifiConfig(byte[] data) {
         if (data == null ||  data.length == 0) {
             return null;
         }
         DataInputStream in = new DataInputStream(new ByteArrayInputStream(data));
         WifiConfiguration config = new WifiConfiguration();
         try {
             int version = in.readInt();

             config.networkId = in.readInt();
             config.status = in.readInt();
             config.disableReason = in.readInt();
             config.SSID = readString(in, version);
             config.BSSID = readString(in, version);
             config.apBand = in.readInt();
             config.apChannel = in.readInt();
             config.autoJoinBSSID = readString(in, version);
             config.FQDN = readString(in, version);
             config.providerFriendlyName = readString(in, version);
             int numRoamingConsortiumIds = in.readInt();
             config.roamingConsortiumIds = new long[numRoamingConsortiumIds];
             for (int i = 0; i < numRoamingConsortiumIds; i++) {
                 config.roamingConsortiumIds[i] = in.readLong();
             }
             config.preSharedKey = readString(in, version);
             for (int i = 0; i < config.wepKeys.length; i++) {
                 config.wepKeys[i] = readString(in, version);
             }
             config.wepTxKeyIndex = in.readInt();
             config.priority = in.readInt();
             config.hiddenSSID = in.readInt() != 0;
             config.requirePMF = in.readInt() != 0;
             config.updateIdentifier = readString(in, version);

             config.allowedKeyManagement = readBitSet(in, version);
             config.allowedProtocols = readBitSet(in, version);
             config.allowedAuthAlgorithms = readBitSet(in, version);
             config.allowedPairwiseCiphers = readBitSet(in, version);
             config.allowedGroupCiphers = readBitSet(in, version);

             //Not backed-up because EnterpriseConfig involves
             //Certificates which are device specific.
             //config.enterpriseConfig = new WifiEnterpriseConfig();

             config.setIpConfiguration(readIpConfiguration(in, version));


             config.dhcpServer = readString(in, version);
             config.defaultGwMacAddress = readString(in, version);
             config.autoJoinStatus = in.readInt();
             config.selfAdded = in.readInt() != 0;
             config.didSelfAdd = in.readInt() != 0;
             config.validatedInternetAccess = in.readInt() != 0;
             config.ephemeral = in.readInt() != 0;
             config.creatorUid = in.readInt();
             config.lastConnectUid = in.readInt();
             config.lastUpdateUid = in.readInt();
             config.creatorName = readString(in, version);
             config.lastUpdateName = readString(in, version);
             config.blackListTimestamp = in.readLong();
             config.lastConnectionFailure = in.readLong();
             config.lastRoamingFailure = in.readLong();
             config.lastRoamingFailureReason = in.readInt();
             config.roamingFailureBlackListTimeMilli = in.readLong();
             config.numConnectionFailures = in.readInt();
             config.numIpConfigFailures = in.readInt();
             config.numAuthFailures = in.readInt();
             config.numScorerOverride = in.readInt();
             config.numScorerOverrideAndSwitchedNetwork = in.readInt();
             config.numAssociation = in.readInt();
             config.numUserTriggeredWifiDisableLowRSSI = in.readInt();
             config.numUserTriggeredWifiDisableBadRSSI = in.readInt();
             config.numUserTriggeredWifiDisableNotHighRSSI = in.readInt();
             config.numTicksAtLowRSSI = in.readInt();
             config.numTicksAtBadRSSI = in.readInt();
             config.numTicksAtNotHighRSSI = in.readInt();
             config.numUserTriggeredJoinAttempts = in.readInt();
             config.autoJoinUseAggressiveJoinAttemptThreshold = in.readInt();
             config.autoJoinBailedDueToLowRssi = in.readInt() != 0;
             config.userApproved = in.readInt();
             config.numNoInternetAccessReports = in.readInt();
             config.noInternetAccessExpected = in.readInt() != 0;
         } catch (IOException ioe) {
             Log.e(TAG, "Failed to convert byte array to WifiConfiguration object", ioe);
             return null;
         }
         return config;
     }

     private static ProxyInfo readProxyInfo(DataInputStream in, int version) throws IOException {
         int isNull = in.readByte();
         if (isNull == NULL) return null;
         String host = readString(in, version);
         int port = in.readInt();
         String exclusionList = readString(in, version);
         return new ProxyInfo(host, port, exclusionList);
     }

     private static void writeProxyInfo(DataOutputStream out, ProxyInfo proxyInfo) throws IOException {
         if (proxyInfo != null) {
             out.writeByte(NOT_NULL);
             writeString(out, proxyInfo.getHost());
             out.writeInt(proxyInfo.getPort());
             writeString(out, proxyInfo.getExclusionListAsString());
         } else {
             out.writeByte(NULL);
         }
     }

     private static InetAddress readInetAddress(DataInputStream in, int version) throws IOException {
         int isNull = in.readByte();
         if (isNull == NULL) return null;
         InetAddress address = null;
         int addressLength = in.readInt();
         if (addressLength < 1) return address;
         byte[] addressBytes = new byte[addressLength];
         in.read(addressBytes, 0, addressLength);
         try {
             address = InetAddress.getByAddress(addressBytes);
         } catch (UnknownHostException unknownHostException) {
             return null;
         }
         return address;
     }

     private static void writeInetAddress(DataOutputStream out, InetAddress address) throws IOException {
         if (address.getAddress() != null) {
             out.writeByte(NOT_NULL);
             out.writeInt(address.getAddress().length);
             out.write(address.getAddress(), 0, address.getAddress().length);
         } else {
             out.writeByte(NULL);
         }
     }

     private static LinkAddress readLinkAddress(DataInputStream in, int version) throws IOException {
         int isNull = in.readByte();
         if (isNull == NULL) return null;
         InetAddress address = readInetAddress(in, version);
         int prefixLength = in.readInt();
         int flags = in.readInt();
         int scope = in.readInt();
         return new LinkAddress(address, prefixLength, flags, scope);
     }

     private static void writeLinkAddress(DataOutputStream out, LinkAddress address) throws IOException {
         if (address != null) {
             out.writeByte(NOT_NULL);
             writeInetAddress(out, address.getAddress());
             out.writeInt(address.getPrefixLength());
             out.writeInt(address.getFlags());
             out.writeInt(address.getScope());
         } else {
             out.writeByte(NULL);
         }
     }

     private static StaticIpConfiguration readStaticIpConfiguration(DataInputStream in, int version) throws IOException {
         int isNull = in.readByte();
         if (isNull == NULL) return null;
         StaticIpConfiguration staticIpConfiguration = new StaticIpConfiguration();
         staticIpConfiguration.ipAddress = readLinkAddress(in, version);
         staticIpConfiguration.gateway = readInetAddress(in, version);
         int dnsServersLength = in.readInt();
         for (int i = 0; i < dnsServersLength; i++) {
             staticIpConfiguration.dnsServers.add(readInetAddress(in, version));
         }
         staticIpConfiguration.domains = readString(in, version);
         return staticIpConfiguration;
     }

     private static void writeStaticIpConfiguration(DataOutputStream out, StaticIpConfiguration staticIpConfiguration) throws IOException {
         if (staticIpConfiguration != null) {
             out.writeByte(NOT_NULL);
             writeLinkAddress(out, staticIpConfiguration.ipAddress);
             writeInetAddress(out, staticIpConfiguration.gateway);
             out.writeInt(staticIpConfiguration.dnsServers.size());
             for (InetAddress inetAddress : staticIpConfiguration.dnsServers) {
                 writeInetAddress(out, inetAddress);
             }
             writeString(out, staticIpConfiguration.domains);
         } else {
             out.writeByte(NULL);
         }
     }

     private static IpConfiguration readIpConfiguration(DataInputStream in, int version) throws IOException {
         int isNull = in.readByte();
         if (isNull == NULL) return null;
         IpConfiguration ipConfiguration = new IpConfiguration();
         String tmp = readString(in, version);
         ipConfiguration.ipAssignment = tmp == null ? null : IpConfiguration.IpAssignment.valueOf(tmp);
         tmp = readString(in, version);
         ipConfiguration.proxySettings = tmp == null ? null : IpConfiguration.ProxySettings.valueOf(tmp);
         ipConfiguration.staticIpConfiguration = readStaticIpConfiguration(in, version);
         ipConfiguration.httpProxy = readProxyInfo(in, version);
         return ipConfiguration;
     }


     private static void writeIpConfiguration(DataOutputStream out, IpConfiguration ipConfiguration) throws IOException {
         if (ipConfiguration != null) {
             out.writeByte(NOT_NULL);
             writeString(out, ipConfiguration.ipAssignment != null ? ipConfiguration.ipAssignment.name() : null);
             writeString(out, ipConfiguration.proxySettings != null ? ipConfiguration.proxySettings.name() : null);
             writeStaticIpConfiguration(out, ipConfiguration.staticIpConfiguration);
             writeProxyInfo(out, ipConfiguration.httpProxy);
         } else {
             out.writeByte(NULL);
         }

     }

     private static String readString(DataInputStream in, int version) throws IOException {
         byte isNull = in.readByte();
         if (isNull == NOT_NULL) {
             return in.readUTF();
         }
         return null;
     }

     private static void writeString(DataOutputStream out, String val) throws IOException {
         if (val != null) {
             out.writeByte(NOT_NULL);
             out.writeUTF(val);
         } else {
             out.writeByte(NULL);
         }
     }

     private static BitSet readBitSet(DataInputStream in, int version) throws IOException {
         byte isNull = in.readByte();
         if (isNull == NOT_NULL) {
             int length = in.readInt();
             byte[] bytes = new byte[length];
             in.read(bytes, 0, length);
             return BitSet.valueOf(bytes);
         }
         return new BitSet();
     }

     private static void writeBitSet(DataOutputStream out, BitSet val) throws IOException {
         if (val != null) {
             out.writeByte(NOT_NULL);
             byte[] byteArray = val.toByteArray();
             out.writeInt(byteArray.length);
             out.write(byteArray);
         } else {
             out.writeByte(NULL);
         }
     }
 }
	/*
	* Copyright (C) 2015 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License
	*/

	package com.android.providers.settings;

	import android.net.IpConfiguration;
	import android.net.LinkAddress;
	import android.net.ProxyInfo;
	import android.net.StaticIpConfiguration;
	import android.net.wifi.WifiConfiguration;
	import android.util.Log;

	import java.io.ByteArrayInputStream;
	import java.io.ByteArrayOutputStream;
	import java.io.DataInputStream;
	import java.io.DataOutputStream;
	import java.io.IOException;
	import java.net.InetAddress;
	import java.net.UnknownHostException;
	import java.nio.ByteBuffer;
	import java.util.BitSet;


	/**
	* Backup/Restore Serializer Class for com.android.net.wifi.WifiConfiguration
	*/
	public class WiFiConfigurationSerializer {
	private static final boolean DEBUG = false;
	private static final String TAG = "WiFiConfigSerializer";

	private static final int NULL = 0;
	private static final int NOT_NULL = 1;
	/**
	* Current Version of the Serializer.
	*/
	private static int STATE_VERSION = 1;


	/**
	* Marshals a WifiConfig object into a byte-array.
	*
	* @param wifiConfig - WifiConfiguration to be Marshalled
	* @return byte array
	*/

	public static byte[] marshalWifiConfig(WifiConfiguration wifiConfig) {
	ByteArrayOutputStream baos = new ByteArrayOutputStream();
	if(wifiConfig != null) {
	DataOutputStream out = new DataOutputStream(baos);
	try {
	out.writeInt(STATE_VERSION);
	out.writeInt(wifiConfig.networkId);
	out.writeInt(wifiConfig.status);
	out.writeInt(wifiConfig.disableReason);
	writeString(out, wifiConfig.SSID);
	writeString(out, wifiConfig.BSSID);
	out.writeInt(wifiConfig.apBand);
	out.writeInt(wifiConfig.apChannel);
	writeString(out, wifiConfig.autoJoinBSSID);
	writeString(out, wifiConfig.FQDN);
	writeString(out, wifiConfig.providerFriendlyName);
	out.writeInt(wifiConfig.roamingConsortiumIds.length);
	for (long id : wifiConfig.roamingConsortiumIds) {
	out.writeLong(id);
	}
	writeString(out, wifiConfig.preSharedKey);
	for (String wepKey : wifiConfig.wepKeys) {
	writeString(out, wepKey);
	}
	out.writeInt(wifiConfig.wepTxKeyIndex);
	out.writeInt(wifiConfig.priority);
	out.writeInt(wifiConfig.hiddenSSID ? 1 : 0);
	out.writeInt(wifiConfig.requirePMF ? 1 : 0);
	writeString(out, wifiConfig.updateIdentifier);

	writeBitSet(out, wifiConfig.allowedKeyManagement);
	writeBitSet(out, wifiConfig.allowedProtocols);
	writeBitSet(out, wifiConfig.allowedAuthAlgorithms);
	writeBitSet(out, wifiConfig.allowedPairwiseCiphers);
	writeBitSet(out, wifiConfig.allowedGroupCiphers);


	//IpConfiguration
	writeIpConfiguration(out, wifiConfig.getIpConfiguration());

	writeString(out, wifiConfig.dhcpServer);
	writeString(out, wifiConfig.defaultGwMacAddress);
	out.writeInt(wifiConfig.autoJoinStatus);
	out.writeInt(wifiConfig.selfAdded ? 1 : 0);
	out.writeInt(wifiConfig.didSelfAdd ? 1 : 0);
	out.writeInt(wifiConfig.validatedInternetAccess ? 1 : 0);
	out.writeInt(wifiConfig.ephemeral ? 1 : 0);
	out.writeInt(wifiConfig.creatorUid);
	out.writeInt(wifiConfig.lastConnectUid);
	out.writeInt(wifiConfig.lastUpdateUid);
	writeString(out, wifiConfig.creatorName);
	writeString(out, wifiConfig.lastUpdateName);
	out.writeLong(wifiConfig.blackListTimestamp);
	out.writeLong(wifiConfig.lastConnectionFailure);
	out.writeLong(wifiConfig.lastRoamingFailure);
	out.writeInt(wifiConfig.lastRoamingFailureReason);
	out.writeLong(wifiConfig.roamingFailureBlackListTimeMilli);
	out.writeLong(wifiConfig.numConnectionFailures);
	out.writeLong(wifiConfig.numIpConfigFailures);
	out.writeInt(wifiConfig.numAuthFailures);
	out.writeInt(wifiConfig.numScorerOverride);
	out.writeInt(wifiConfig.numScorerOverrideAndSwitchedNetwork);
	out.writeInt(wifiConfig.numAssociation);
	out.writeInt(wifiConfig.numUserTriggeredWifiDisableLowRSSI);
	out.writeInt(wifiConfig.numUserTriggeredWifiDisableBadRSSI);
	out.writeInt(wifiConfig.numUserTriggeredWifiDisableNotHighRSSI);
	out.writeInt(wifiConfig.numTicksAtLowRSSI);
	out.writeInt(wifiConfig.numTicksAtBadRSSI);
	out.writeInt(wifiConfig.numTicksAtNotHighRSSI);
	out.writeInt(wifiConfig.numUserTriggeredJoinAttempts);
	out.writeInt(wifiConfig.autoJoinUseAggressiveJoinAttemptThreshold);
	out.writeInt(wifiConfig.autoJoinBailedDueToLowRssi ? 1 : 0);
	out.writeInt(wifiConfig.userApproved);
	out.writeInt(wifiConfig.numNoInternetAccessReports);
	out.writeInt(wifiConfig.noInternetAccessExpected ? 1 : 0);
	} catch (IOException ioe) {
	Log.e(TAG, "Failed to Convert WifiConfiguration to byte array", ioe);
	baos.reset();
	}
	}
	return baos.toByteArray();
	}

	/**
	* Unmarshals a byte array into a WifiConfig Object
	*
	* @param data - marshalled WifiConfig Object
	* @return WifiConfiguration Object
	*/

	public static WifiConfiguration unmarshalWifiConfig(byte[] data) {
	if (data == null \|\| data.length == 0) {
	return null;
	}
	DataInputStream in = new DataInputStream(new ByteArrayInputStream(data));
	WifiConfiguration config = new WifiConfiguration();
	try {
	int version = in.readInt();

	config.networkId = in.readInt();
	config.status = in.readInt();
	config.disableReason = in.readInt();
	config.SSID = readString(in, version);
	config.BSSID = readString(in, version);
	config.apBand = in.readInt();
	config.apChannel = in.readInt();
	config.autoJoinBSSID = readString(in, version);
	config.FQDN = readString(in, version);
	config.providerFriendlyName = readString(in, version);
	int numRoamingConsortiumIds = in.readInt();
	config.roamingConsortiumIds = new long[numRoamingConsortiumIds];
	for (int i = 0; i < numRoamingConsortiumIds; i++) {
	config.roamingConsortiumIds[i] = in.readLong();
	}
	config.preSharedKey = readString(in, version);
	for (int i = 0; i < config.wepKeys.length; i++) {
	config.wepKeys[i] = readString(in, version);
	}
	config.wepTxKeyIndex = in.readInt();
	config.priority = in.readInt();
	config.hiddenSSID = in.readInt() != 0;
	config.requirePMF = in.readInt() != 0;
	config.updateIdentifier = readString(in, version);

	config.allowedKeyManagement = readBitSet(in, version);
	config.allowedProtocols = readBitSet(in, version);
	config.allowedAuthAlgorithms = readBitSet(in, version);
	config.allowedPairwiseCiphers = readBitSet(in, version);
	config.allowedGroupCiphers = readBitSet(in, version);

	//Not backed-up because EnterpriseConfig involves
	//Certificates which are device specific.
	//config.enterpriseConfig = new WifiEnterpriseConfig();

	config.setIpConfiguration(readIpConfiguration(in, version));


	config.dhcpServer = readString(in, version);
	config.defaultGwMacAddress = readString(in, version);
	config.autoJoinStatus = in.readInt();
	config.selfAdded = in.readInt() != 0;
	config.didSelfAdd = in.readInt() != 0;
	config.validatedInternetAccess = in.readInt() != 0;
	config.ephemeral = in.readInt() != 0;
	config.creatorUid = in.readInt();
	config.lastConnectUid = in.readInt();
	config.lastUpdateUid = in.readInt();
	config.creatorName = readString(in, version);
	config.lastUpdateName = readString(in, version);
	config.blackListTimestamp = in.readLong();
	config.lastConnectionFailure = in.readLong();
	config.lastRoamingFailure = in.readLong();
	config.lastRoamingFailureReason = in.readInt();
	config.roamingFailureBlackListTimeMilli = in.readLong();
	config.numConnectionFailures = in.readInt();
	config.numIpConfigFailures = in.readInt();
	config.numAuthFailures = in.readInt();
	config.numScorerOverride = in.readInt();
	config.numScorerOverrideAndSwitchedNetwork = in.readInt();
	config.numAssociation = in.readInt();
	config.numUserTriggeredWifiDisableLowRSSI = in.readInt();
	config.numUserTriggeredWifiDisableBadRSSI = in.readInt();
	config.numUserTriggeredWifiDisableNotHighRSSI = in.readInt();
	config.numTicksAtLowRSSI = in.readInt();
	config.numTicksAtBadRSSI = in.readInt();
	config.numTicksAtNotHighRSSI = in.readInt();
	config.numUserTriggeredJoinAttempts = in.readInt();
	config.autoJoinUseAggressiveJoinAttemptThreshold = in.readInt();
	config.autoJoinBailedDueToLowRssi = in.readInt() != 0;
	config.userApproved = in.readInt();
	config.numNoInternetAccessReports = in.readInt();
	config.noInternetAccessExpected = in.readInt() != 0;
	} catch (IOException ioe) {
	Log.e(TAG, "Failed to convert byte array to WifiConfiguration object", ioe);
	return null;
	}
	return config;
	}

	private static ProxyInfo readProxyInfo(DataInputStream in, int version) throws IOException {
	int isNull = in.readByte();
	if (isNull == NULL) return null;
	String host = readString(in, version);
	int port = in.readInt();
	String exclusionList = readString(in, version);
	return new ProxyInfo(host, port, exclusionList);
	}

	private static void writeProxyInfo(DataOutputStream out, ProxyInfo proxyInfo) throws IOException {
	if (proxyInfo != null) {
	out.writeByte(NOT_NULL);
	writeString(out, proxyInfo.getHost());
	out.writeInt(proxyInfo.getPort());
	writeString(out, proxyInfo.getExclusionListAsString());
	} else {
	out.writeByte(NULL);
	}
	}

	private static InetAddress readInetAddress(DataInputStream in, int version) throws IOException {
	int isNull = in.readByte();
	if (isNull == NULL) return null;
	InetAddress address = null;
	int addressLength = in.readInt();
	if (addressLength < 1) return address;
	byte[] addressBytes = new byte[addressLength];
	in.read(addressBytes, 0, addressLength);
	try {
	address = InetAddress.getByAddress(addressBytes);
	} catch (UnknownHostException unknownHostException) {
	return null;
	}
	return address;
	}

	private static void writeInetAddress(DataOutputStream out, InetAddress address) throws IOException {
	if (address.getAddress() != null) {
	out.writeByte(NOT_NULL);
	out.writeInt(address.getAddress().length);
	out.write(address.getAddress(), 0, address.getAddress().length);
	} else {
	out.writeByte(NULL);
	}
	}

	private static LinkAddress readLinkAddress(DataInputStream in, int version) throws IOException {
	int isNull = in.readByte();
	if (isNull == NULL) return null;
	InetAddress address = readInetAddress(in, version);
	int prefixLength = in.readInt();
	int flags = in.readInt();
	int scope = in.readInt();
	return new LinkAddress(address, prefixLength, flags, scope);
	}

	private static void writeLinkAddress(DataOutputStream out, LinkAddress address) throws IOException {
	if (address != null) {
	out.writeByte(NOT_NULL);
	writeInetAddress(out, address.getAddress());
	out.writeInt(address.getPrefixLength());
	out.writeInt(address.getFlags());
	out.writeInt(address.getScope());
	} else {
	out.writeByte(NULL);
	}
	}

	private static StaticIpConfiguration readStaticIpConfiguration(DataInputStream in, int version) throws IOException {
	int isNull = in.readByte();
	if (isNull == NULL) return null;
	StaticIpConfiguration staticIpConfiguration = new StaticIpConfiguration();
	staticIpConfiguration.ipAddress = readLinkAddress(in, version);
	staticIpConfiguration.gateway = readInetAddress(in, version);
	int dnsServersLength = in.readInt();
	for (int i = 0; i < dnsServersLength; i++) {
	staticIpConfiguration.dnsServers.add(readInetAddress(in, version));
	}
	staticIpConfiguration.domains = readString(in, version);
	return staticIpConfiguration;
	}

	private static void writeStaticIpConfiguration(DataOutputStream out, StaticIpConfiguration staticIpConfiguration) throws IOException {
	if (staticIpConfiguration != null) {
	out.writeByte(NOT_NULL);
	writeLinkAddress(out, staticIpConfiguration.ipAddress);
	writeInetAddress(out, staticIpConfiguration.gateway);
	out.writeInt(staticIpConfiguration.dnsServers.size());
	for (InetAddress inetAddress : staticIpConfiguration.dnsServers) {
	writeInetAddress(out, inetAddress);
	}
	writeString(out, staticIpConfiguration.domains);
	} else {
	out.writeByte(NULL);
	}
	}

	private static IpConfiguration readIpConfiguration(DataInputStream in, int version) throws IOException {
	int isNull = in.readByte();
	if (isNull == NULL) return null;
	IpConfiguration ipConfiguration = new IpConfiguration();
	String tmp = readString(in, version);
	ipConfiguration.ipAssignment = tmp == null ? null : IpConfiguration.IpAssignment.valueOf(tmp);
	tmp = readString(in, version);
	ipConfiguration.proxySettings = tmp == null ? null : IpConfiguration.ProxySettings.valueOf(tmp);
	ipConfiguration.staticIpConfiguration = readStaticIpConfiguration(in, version);
	ipConfiguration.httpProxy = readProxyInfo(in, version);
	return ipConfiguration;
	}


	private static void writeIpConfiguration(DataOutputStream out, IpConfiguration ipConfiguration) throws IOException {
	if (ipConfiguration != null) {
	out.writeByte(NOT_NULL);
	writeString(out, ipConfiguration.ipAssignment != null ? ipConfiguration.ipAssignment.name() : null);
	writeString(out, ipConfiguration.proxySettings != null ? ipConfiguration.proxySettings.name() : null);
	writeStaticIpConfiguration(out, ipConfiguration.staticIpConfiguration);
	writeProxyInfo(out, ipConfiguration.httpProxy);
	} else {
	out.writeByte(NULL);
	}

	}

	private static String readString(DataInputStream in, int version) throws IOException {
	byte isNull = in.readByte();
	if (isNull == NOT_NULL) {
	return in.readUTF();
	}
	return null;
	}

	private static void writeString(DataOutputStream out, String val) throws IOException {
	if (val != null) {
	out.writeByte(NOT_NULL);
	out.writeUTF(val);
	} else {
	out.writeByte(NULL);
	}
	}

	private static BitSet readBitSet(DataInputStream in, int version) throws IOException {
	byte isNull = in.readByte();
	if (isNull == NOT_NULL) {
	int length = in.readInt();
	byte[] bytes = new byte[length];
	in.read(bytes, 0, length);
	return BitSet.valueOf(bytes);
	}
	return new BitSet();
	}

	private static void writeBitSet(DataOutputStream out, BitSet val) throws IOException {
	if (val != null) {
	out.writeByte(NOT_NULL);
	byte[] byteArray = val.toByteArray();
	out.writeInt(byteArray.length);
	out.write(byteArray);
	} else {
	out.writeByte(NULL);
	}
	}
	}