src/java/com/android/internal/telephony/uicc/IsimUiccRecords.java - platform/frameworks/opt/telephony - Git at Google

 /*
  * Copyright (C) 2011 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.internal.telephony.uicc;

 import android.content.Context;
 import android.os.AsyncResult;
 import android.os.Handler;
 import android.os.Message;
 import android.telephony.Rlog;
 import android.content.Intent;


 import com.android.internal.telephony.CommandsInterface;
 import com.android.internal.telephony.gsm.SimTlv;
 //import com.android.internal.telephony.gsm.VoiceMailConstants;

 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.Arrays;

 import static com.android.internal.telephony.uicc.IccConstants.EF_DOMAIN;
 import static com.android.internal.telephony.uicc.IccConstants.EF_IMPI;
 import static com.android.internal.telephony.uicc.IccConstants.EF_IMPU;
 import static com.android.internal.telephony.uicc.IccConstants.EF_IST;
 import static com.android.internal.telephony.uicc.IccConstants.EF_PCSCF;

 /**
  * {@hide}
  */
 public final class IsimUiccRecords extends IccRecords implements IsimRecords {
     protected static final String LOG_TAG = "IsimUiccRecords";

     private static final boolean DBG = true;
     private static final boolean DUMP_RECORDS = true;   // Note: PII is logged when this is true
     public static final String INTENT_ISIM_REFRESH = "com.android.intent.isim_refresh";

     private static final int EVENT_APP_READY = 1;
     private static final int EVENT_ISIM_REFRESH = 31;
     private static final int EVENT_AKA_AUTHENTICATE_DONE          = 90;

     // ISIM EF records (see 3GPP TS 31.103)
     private String mIsimImpi;               // IMS private user identity
     private String mIsimDomain;             // IMS home network domain name
     private String[] mIsimImpu;             // IMS public user identity(s)
     private String mIsimIst;             // IMS Service Table
     private String[] mIsimPcscf;             // IMS Proxy Call Session Control Function
     private String auth_rsp;

     private final Object mLock = new Object();

     private static final int TAG_ISIM_VALUE = 0x80;     // From 3GPP TS 31.103

     @Override
     public String toString() {
         return "IsimUiccRecords: " + super.toString()
                 + " mIsimImpi=" + mIsimImpi
                 + " mIsimDomain=" + mIsimDomain
                 + " mIsimImpu=" + mIsimImpu
                 + " mIsimIst=" + mIsimIst
                 + " mIsimPcscf=" + mIsimPcscf;
     }

     public IsimUiccRecords(UiccCardApplication app, Context c, CommandsInterface ci) {
         super(app, c, ci);

         mRecordsRequested = false;  // No load request is made till SIM ready

         // recordsToLoad is set to 0 because no requests are made yet
         mRecordsToLoad = 0;
         // Start off by setting empty state
         resetRecords();
         mCi.registerForIccRefresh(this, EVENT_ISIM_REFRESH, null);

         mParentApp.registerForReady(this, EVENT_APP_READY, null);
         if (DBG) log("IsimUiccRecords X ctor this=" + this);
     }

     @Override
     public void dispose() {
         log("Disposing " + this);
         //Unregister for all events
         mCi.unregisterForIccRefresh(this);
         mParentApp.unregisterForReady(this);
         resetRecords();
         super.dispose();
     }

     // ***** Overridden from Handler
     public void handleMessage(Message msg) {
         AsyncResult ar;

         if (mDestroyed.get()) {
             Rlog.e(LOG_TAG, "Received message " + msg +
                     "[" + msg.what + "] while being destroyed. Ignoring.");
             return;
         }
         loge("IsimUiccRecords: handleMessage " + msg + "[" + msg.what + "] ");

         try {
             switch (msg.what) {
                 case EVENT_APP_READY:
                     onReady();
                     break;

                 case EVENT_ISIM_REFRESH:
                     ar = (AsyncResult)msg.obj;
                     loge("ISim REFRESH(EVENT_ISIM_REFRESH) with exception: " + ar.exception);
                     if (ar.exception == null) {
                         Intent intent = new Intent(INTENT_ISIM_REFRESH);
                         loge("send ISim REFRESH: " + INTENT_ISIM_REFRESH);
                         mContext.sendBroadcast(intent);
                         handleIsimRefresh((IccRefreshResponse)ar.result);
                     }
                     break;

                 case EVENT_AKA_AUTHENTICATE_DONE:
                     ar = (AsyncResult)msg.obj;
                     log("EVENT_AKA_AUTHENTICATE_DONE");
                     if (ar.exception != null) {
                         log("Exception ISIM AKA: " + ar.exception);
                     } else {
                         try {
                             auth_rsp = (String)ar.result;
                             log("ISIM AKA: auth_rsp = " + auth_rsp);
                         } catch (Exception e) {
                             log("Failed to parse ISIM AKA contents: " + e);
                         }
                     }
                     synchronized (mLock) {
                         mLock.notifyAll();
                     }

                     break;

                 default:
                     super.handleMessage(msg);   // IccRecords handles generic record load responses

             }
         } catch (RuntimeException exc) {
             // I don't want these exceptions to be fatal
             Rlog.w(LOG_TAG, "Exception parsing SIM record", exc);
         }
     }

     protected void fetchIsimRecords() {
         mRecordsRequested = true;

         mFh.loadEFTransparent(EF_IMPI, obtainMessage(
                 IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpiLoaded()));
         mRecordsToLoad++;

         mFh.loadEFLinearFixedAll(EF_IMPU, obtainMessage(
                 IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpuLoaded()));
         mRecordsToLoad++;

         mFh.loadEFTransparent(EF_DOMAIN, obtainMessage(
                 IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimDomainLoaded()));
         mRecordsToLoad++;
         mFh.loadEFTransparent(EF_IST, obtainMessage(
                     IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimIstLoaded()));
         mRecordsToLoad++;
         mFh.loadEFLinearFixedAll(EF_PCSCF, obtainMessage(
                     IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimPcscfLoaded()));
         mRecordsToLoad++;

         if (DBG) log("fetchIsimRecords " + mRecordsToLoad + " requested: " + mRecordsRequested);
     }

     protected void resetRecords() {
         // recordsRequested is set to false indicating that the SIM
         // read requests made so far are not valid. This is set to
         // true only when fresh set of read requests are made.
         mIsimImpi = null;
         mIsimDomain = null;
         mIsimImpu = null;
         mIsimIst = null;
         mIsimPcscf = null;
         auth_rsp = null;

         mRecordsRequested = false;
     }

     private class EfIsimImpiLoaded implements IccRecords.IccRecordLoaded {
         public String getEfName() {
             return "EF_ISIM_IMPI";
         }
         public void onRecordLoaded(AsyncResult ar) {
             byte[] data = (byte[]) ar.result;
             mIsimImpi = isimTlvToString(data);
             if (DUMP_RECORDS) log("EF_IMPI=" + mIsimImpi);
         }
     }

     private class EfIsimImpuLoaded implements IccRecords.IccRecordLoaded {
         public String getEfName() {
             return "EF_ISIM_IMPU";
         }
         public void onRecordLoaded(AsyncResult ar) {
             ArrayList<byte[]> impuList = (ArrayList<byte[]>) ar.result;
             if (DBG) log("EF_IMPU record count: " + impuList.size());
             mIsimImpu = new String[impuList.size()];
             int i = 0;
             for (byte[] identity : impuList) {
                 String impu = isimTlvToString(identity);
                 if (DUMP_RECORDS) log("EF_IMPU[" + i + "]=" + impu);
                 mIsimImpu[i++] = impu;
             }
         }
     }

     private class EfIsimDomainLoaded implements IccRecords.IccRecordLoaded {
         public String getEfName() {
             return "EF_ISIM_DOMAIN";
         }
         public void onRecordLoaded(AsyncResult ar) {
             byte[] data = (byte[]) ar.result;
             mIsimDomain = isimTlvToString(data);
             if (DUMP_RECORDS) log("EF_DOMAIN=" + mIsimDomain);
         }
     }

     private class EfIsimIstLoaded implements IccRecords.IccRecordLoaded {
         public String getEfName() {
             return "EF_ISIM_IST";
         }
         public void onRecordLoaded(AsyncResult ar) {
             byte[] data = (byte[]) ar.result;
             mIsimIst = IccUtils.bytesToHexString(data);
             if (DUMP_RECORDS) log("EF_IST=" + mIsimIst);
         }
     }
     private class EfIsimPcscfLoaded implements IccRecords.IccRecordLoaded {
         public String getEfName() {
             return "EF_ISIM_PCSCF";
         }
         public void onRecordLoaded(AsyncResult ar) {
             ArrayList<byte[]> pcscflist = (ArrayList<byte[]>) ar.result;
             if (DBG) log("EF_PCSCF record count: " + pcscflist.size());
             mIsimPcscf = new String[pcscflist.size()];
             int i = 0;
             for (byte[] identity : pcscflist) {
                 String pcscf = isimTlvToString(identity);
                 if (DUMP_RECORDS) log("EF_PCSCF[" + i + "]=" + pcscf);
                 mIsimPcscf[i++] = pcscf;
             }
         }
     }

     /**
      * ISIM records for IMS are stored inside a Tag-Length-Value record as a UTF-8 string
      * with tag value 0x80.
      * @param record the byte array containing the IMS data string
      * @return the decoded String value, or null if the record can't be decoded
      */
     private static String isimTlvToString(byte[] record) {
         SimTlv tlv = new SimTlv(record, 0, record.length);
         do {
             if (tlv.getTag() == TAG_ISIM_VALUE) {
                 return new String(tlv.getData(), Charset.forName("UTF-8"));
             }
         } while (tlv.nextObject());

         Rlog.e(LOG_TAG, "[ISIM] can't find TLV tag in ISIM record, returning null");
         return null;
     }

     @Override
     protected void onRecordLoaded() {
         // One record loaded successfully or failed, In either case
         // we need to update the recordsToLoad count
         mRecordsToLoad -= 1;
         if (DBG) log("onRecordLoaded " + mRecordsToLoad + " requested: " + mRecordsRequested);

         if (mRecordsToLoad == 0 && mRecordsRequested == true) {
             onAllRecordsLoaded();
         } else if (mRecordsToLoad < 0) {
             loge("recordsToLoad <0, programmer error suspected");
             mRecordsToLoad = 0;
         }
     }

     @Override
     protected void onAllRecordsLoaded() {
        if (DBG) log("record load complete");
         mRecordsLoadedRegistrants.notifyRegistrants(
                 new AsyncResult(null, null, null));
     }

     private void handleFileUpdate(int efid) {
         switch (efid) {
             case EF_IMPI:
                 mFh.loadEFTransparent(EF_IMPI, obtainMessage(
                             IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpiLoaded()));
                 mRecordsToLoad++;
                 break;

             case EF_IMPU:
                 mFh.loadEFLinearFixedAll(EF_IMPU, obtainMessage(
                             IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpuLoaded()));
                 mRecordsToLoad++;
             break;

             case EF_DOMAIN:
                 mFh.loadEFTransparent(EF_DOMAIN, obtainMessage(
                             IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimDomainLoaded()));
                 mRecordsToLoad++;
             break;

             case EF_IST:
                 mFh.loadEFTransparent(EF_IST, obtainMessage(
                             IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimIstLoaded()));
                 mRecordsToLoad++;
             break;

             case EF_PCSCF:
                 mFh.loadEFLinearFixedAll(EF_PCSCF, obtainMessage(
                             IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimPcscfLoaded()));
                 mRecordsToLoad++;

             default:
                 fetchIsimRecords();
                 break;
         }
     }

     private void handleIsimRefresh(IccRefreshResponse refreshResponse) {
         if (refreshResponse == null) {
             if (DBG) log("handleIsimRefresh received without input");
             return;
         }

         if (refreshResponse.aid != null &&
                 !refreshResponse.aid.equals(mParentApp.getAid())) {
             // This is for different app. Ignore.
             if (DBG) log("handleIsimRefresh received different app");
             return;
         }

         switch (refreshResponse.refreshResult) {
             case IccRefreshResponse.REFRESH_RESULT_FILE_UPDATE:
                 if (DBG) log("handleIsimRefresh with REFRESH_RESULT_FILE_UPDATE");
                 handleFileUpdate(refreshResponse.efId);
                 break;

             case IccRefreshResponse.REFRESH_RESULT_INIT:
                 if (DBG) log("handleIsimRefresh with REFRESH_RESULT_INIT");
                 // need to reload all files (that we care about)
                 // onIccRefreshInit();
                 fetchIsimRecords();
                 break;

             case IccRefreshResponse.REFRESH_RESULT_RESET:
                 // Refresh reset is handled by the UiccCard object.
                 if (DBG) log("handleIsimRefresh with REFRESH_RESULT_RESET");
                 break;

             default:
                 // unknown refresh operation
                 if (DBG) log("handleIsimRefresh with unknown operation");
                 break;
         }
     }

     /**
      * Return the IMS private user identity (IMPI).
      * Returns null if the IMPI hasn't been loaded or isn't present on the ISIM.
      * @return the IMS private user identity string, or null if not available
      */
     @Override
     public String getIsimImpi() {
         return mIsimImpi;
     }

     /**
      * Return the IMS home network domain name.
      * Returns null if the IMS domain hasn't been loaded or isn't present on the ISIM.
      * @return the IMS home network domain name, or null if not available
      */
     @Override
     public String getIsimDomain() {
         return mIsimDomain;
     }

     /**
      * Return an array of IMS public user identities (IMPU).
      * Returns null if the IMPU hasn't been loaded or isn't present on the ISIM.
      * @return an array of IMS public user identity strings, or null if not available
      */
     @Override
     public String[] getIsimImpu() {
         return (mIsimImpu != null) ? mIsimImpu.clone() : null;
     }

     /**
      * Returns the IMS Service Table (IST) that was loaded from the ISIM.
      * @return IMS Service Table or null if not present or not loaded
      */
     @Override
     public String getIsimIst() {
         return mIsimIst;
     }

     /**
      * Returns the IMS Proxy Call Session Control Function(PCSCF) that were loaded from the ISIM.
      * @return an array of  PCSCF strings with one PCSCF per string, or null if
      *      not present or not loaded
      */
     @Override
     public String[] getIsimPcscf() {
         return (mIsimPcscf != null) ? mIsimPcscf.clone() : null;
     }

     /**
      * Returns the response of ISIM Authetification through RIL.
      * Returns null if the Authentification hasn't been successed or isn't present iphonesubinfo.
      * @return the response of ISIM Authetification, or null if not available
      */
     @Override
     public String getIsimChallengeResponse(String nonce){
         if (DBG) log("getIsimChallengeResponse-nonce:"+nonce);
         try {
             synchronized(mLock) {
                 mCi.requestIsimAuthentication(nonce,obtainMessage(EVENT_AKA_AUTHENTICATE_DONE));
                 try {
                     mLock.wait();
                 } catch (InterruptedException e) {
                     log("interrupted while trying to request Isim Auth");
                 }
             }
         } catch(Exception e) {
             if (DBG) log( "Fail while trying to request Isim Auth");
             return null;
         }

         if (DBG) log("getIsimChallengeResponse-auth_rsp"+auth_rsp);

         return auth_rsp;
     }

     @Override
     public int getDisplayRule(String plmn) {
         // Not applicable to Isim
         return 0;
     }

     @Override
     public void onReady() {
         fetchIsimRecords();
     }

     @Override
     public void onRefresh(boolean fileChanged, int[] fileList) {
         if (fileChanged) {
             // A future optimization would be to inspect fileList and
             // only reload those files that we care about.  For now,
             // just re-fetch all SIM records that we cache.
             fetchIsimRecords();
         }
     }

     @Override
     public void setVoiceMailNumber(String alphaTag, String voiceNumber,
             Message onComplete) {
         // Not applicable to Isim
     }

     @Override
     public void setVoiceMessageWaiting(int line, int countWaiting) {
         // Not applicable to Isim
     }

     @Override
     protected void log(String s) {
         if (DBG) Rlog.d(LOG_TAG, "[ISIM] " + s);
     }

     @Override
     protected void loge(String s) {
         if (DBG) Rlog.e(LOG_TAG, "[ISIM] " + s);
     }

     @Override
     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         pw.println("IsimRecords: " + this);
         pw.println(" extends:");
         super.dump(fd, pw, args);
         pw.println(" mIsimImpi=" + mIsimImpi);
         pw.println(" mIsimDomain=" + mIsimDomain);
         pw.println(" mIsimImpu[]=" + Arrays.toString(mIsimImpu));
         pw.println(" mIsimIst" + mIsimIst);
         pw.println(" mIsimPcscf"+mIsimPcscf);
         pw.flush();
     }

     @Override
     public int getVoiceMessageCount() {
         return 0; // Not applicable to Isim
     }

 }
	/*
	* Copyright (C) 2011 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.internal.telephony.uicc;

	import android.content.Context;
	import android.os.AsyncResult;
	import android.os.Handler;
	import android.os.Message;
	import android.telephony.Rlog;
	import android.content.Intent;


	import com.android.internal.telephony.CommandsInterface;
	import com.android.internal.telephony.gsm.SimTlv;
	//import com.android.internal.telephony.gsm.VoiceMailConstants;

	import java.io.FileDescriptor;
	import java.io.PrintWriter;
	import java.nio.charset.Charset;
	import java.util.ArrayList;
	import java.util.Arrays;

	import static com.android.internal.telephony.uicc.IccConstants.EF_DOMAIN;
	import static com.android.internal.telephony.uicc.IccConstants.EF_IMPI;
	import static com.android.internal.telephony.uicc.IccConstants.EF_IMPU;
	import static com.android.internal.telephony.uicc.IccConstants.EF_IST;
	import static com.android.internal.telephony.uicc.IccConstants.EF_PCSCF;

	/**
	* {@hide}
	*/
	public final class IsimUiccRecords extends IccRecords implements IsimRecords {
	protected static final String LOG_TAG = "IsimUiccRecords";

	private static final boolean DBG = true;
	private static final boolean DUMP_RECORDS = true; // Note: PII is logged when this is true
	public static final String INTENT_ISIM_REFRESH = "com.android.intent.isim_refresh";

	private static final int EVENT_APP_READY = 1;
	private static final int EVENT_ISIM_REFRESH = 31;
	private static final int EVENT_AKA_AUTHENTICATE_DONE = 90;

	// ISIM EF records (see 3GPP TS 31.103)
	private String mIsimImpi; // IMS private user identity
	private String mIsimDomain; // IMS home network domain name
	private String[] mIsimImpu; // IMS public user identity(s)
	private String mIsimIst; // IMS Service Table
	private String[] mIsimPcscf; // IMS Proxy Call Session Control Function
	private String auth_rsp;

	private final Object mLock = new Object();

	private static final int TAG_ISIM_VALUE = 0x80; // From 3GPP TS 31.103

	@Override
	public String toString() {
	return "IsimUiccRecords: " + super.toString()
	+ " mIsimImpi=" + mIsimImpi
	+ " mIsimDomain=" + mIsimDomain
	+ " mIsimImpu=" + mIsimImpu
	+ " mIsimIst=" + mIsimIst
	+ " mIsimPcscf=" + mIsimPcscf;
	}

	public IsimUiccRecords(UiccCardApplication app, Context c, CommandsInterface ci) {
	super(app, c, ci);

	mRecordsRequested = false; // No load request is made till SIM ready

	// recordsToLoad is set to 0 because no requests are made yet
	mRecordsToLoad = 0;
	// Start off by setting empty state
	resetRecords();
	mCi.registerForIccRefresh(this, EVENT_ISIM_REFRESH, null);

	mParentApp.registerForReady(this, EVENT_APP_READY, null);
	if (DBG) log("IsimUiccRecords X ctor this=" + this);
	}

	@Override
	public void dispose() {
	log("Disposing " + this);
	//Unregister for all events
	mCi.unregisterForIccRefresh(this);
	mParentApp.unregisterForReady(this);
	resetRecords();
	super.dispose();
	}

	// ***** Overridden from Handler
	public void handleMessage(Message msg) {
	AsyncResult ar;

	if (mDestroyed.get()) {
	Rlog.e(LOG_TAG, "Received message " + msg +
	"[" + msg.what + "] while being destroyed. Ignoring.");
	return;
	}
	loge("IsimUiccRecords: handleMessage " + msg + "[" + msg.what + "] ");

	try {
	switch (msg.what) {
	case EVENT_APP_READY:
	onReady();
	break;

	case EVENT_ISIM_REFRESH:
	ar = (AsyncResult)msg.obj;
	loge("ISim REFRESH(EVENT_ISIM_REFRESH) with exception: " + ar.exception);
	if (ar.exception == null) {
	Intent intent = new Intent(INTENT_ISIM_REFRESH);
	loge("send ISim REFRESH: " + INTENT_ISIM_REFRESH);
	mContext.sendBroadcast(intent);
	handleIsimRefresh((IccRefreshResponse)ar.result);
	}
	break;

	case EVENT_AKA_AUTHENTICATE_DONE:
	ar = (AsyncResult)msg.obj;
	log("EVENT_AKA_AUTHENTICATE_DONE");
	if (ar.exception != null) {
	log("Exception ISIM AKA: " + ar.exception);
	} else {
	try {
	auth_rsp = (String)ar.result;
	log("ISIM AKA: auth_rsp = " + auth_rsp);
	} catch (Exception e) {
	log("Failed to parse ISIM AKA contents: " + e);
	}
	}
	synchronized (mLock) {
	mLock.notifyAll();
	}

	break;

	default:
	super.handleMessage(msg); // IccRecords handles generic record load responses

	}
	} catch (RuntimeException exc) {
	// I don't want these exceptions to be fatal
	Rlog.w(LOG_TAG, "Exception parsing SIM record", exc);
	}
	}

	protected void fetchIsimRecords() {
	mRecordsRequested = true;

	mFh.loadEFTransparent(EF_IMPI, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpiLoaded()));
	mRecordsToLoad++;

	mFh.loadEFLinearFixedAll(EF_IMPU, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpuLoaded()));
	mRecordsToLoad++;

	mFh.loadEFTransparent(EF_DOMAIN, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimDomainLoaded()));
	mRecordsToLoad++;
	mFh.loadEFTransparent(EF_IST, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimIstLoaded()));
	mRecordsToLoad++;
	mFh.loadEFLinearFixedAll(EF_PCSCF, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimPcscfLoaded()));
	mRecordsToLoad++;

	if (DBG) log("fetchIsimRecords " + mRecordsToLoad + " requested: " + mRecordsRequested);
	}

	protected void resetRecords() {
	// recordsRequested is set to false indicating that the SIM
	// read requests made so far are not valid. This is set to
	// true only when fresh set of read requests are made.
	mIsimImpi = null;
	mIsimDomain = null;
	mIsimImpu = null;
	mIsimIst = null;
	mIsimPcscf = null;
	auth_rsp = null;

	mRecordsRequested = false;
	}

	private class EfIsimImpiLoaded implements IccRecords.IccRecordLoaded {
	public String getEfName() {
	return "EF_ISIM_IMPI";
	}
	public void onRecordLoaded(AsyncResult ar) {
	byte[] data = (byte[]) ar.result;
	mIsimImpi = isimTlvToString(data);
	if (DUMP_RECORDS) log("EF_IMPI=" + mIsimImpi);
	}
	}

	private class EfIsimImpuLoaded implements IccRecords.IccRecordLoaded {
	public String getEfName() {
	return "EF_ISIM_IMPU";
	}
	public void onRecordLoaded(AsyncResult ar) {
	ArrayList<byte[]> impuList = (ArrayList<byte[]>) ar.result;
	if (DBG) log("EF_IMPU record count: " + impuList.size());
	mIsimImpu = new String[impuList.size()];
	int i = 0;
	for (byte[] identity : impuList) {
	String impu = isimTlvToString(identity);
	if (DUMP_RECORDS) log("EF_IMPU[" + i + "]=" + impu);
	mIsimImpu[i++] = impu;
	}
	}
	}

	private class EfIsimDomainLoaded implements IccRecords.IccRecordLoaded {
	public String getEfName() {
	return "EF_ISIM_DOMAIN";
	}
	public void onRecordLoaded(AsyncResult ar) {
	byte[] data = (byte[]) ar.result;
	mIsimDomain = isimTlvToString(data);
	if (DUMP_RECORDS) log("EF_DOMAIN=" + mIsimDomain);
	}
	}

	private class EfIsimIstLoaded implements IccRecords.IccRecordLoaded {
	public String getEfName() {
	return "EF_ISIM_IST";
	}
	public void onRecordLoaded(AsyncResult ar) {
	byte[] data = (byte[]) ar.result;
	mIsimIst = IccUtils.bytesToHexString(data);
	if (DUMP_RECORDS) log("EF_IST=" + mIsimIst);
	}
	}
	private class EfIsimPcscfLoaded implements IccRecords.IccRecordLoaded {
	public String getEfName() {
	return "EF_ISIM_PCSCF";
	}
	public void onRecordLoaded(AsyncResult ar) {
	ArrayList<byte[]> pcscflist = (ArrayList<byte[]>) ar.result;
	if (DBG) log("EF_PCSCF record count: " + pcscflist.size());
	mIsimPcscf = new String[pcscflist.size()];
	int i = 0;
	for (byte[] identity : pcscflist) {
	String pcscf = isimTlvToString(identity);
	if (DUMP_RECORDS) log("EF_PCSCF[" + i + "]=" + pcscf);
	mIsimPcscf[i++] = pcscf;
	}
	}
	}

	/**
	* ISIM records for IMS are stored inside a Tag-Length-Value record as a UTF-8 string
	* with tag value 0x80.
	* @param record the byte array containing the IMS data string
	* @return the decoded String value, or null if the record can't be decoded
	*/
	private static String isimTlvToString(byte[] record) {
	SimTlv tlv = new SimTlv(record, 0, record.length);
	do {
	if (tlv.getTag() == TAG_ISIM_VALUE) {
	return new String(tlv.getData(), Charset.forName("UTF-8"));
	}
	} while (tlv.nextObject());

	Rlog.e(LOG_TAG, "[ISIM] can't find TLV tag in ISIM record, returning null");
	return null;
	}

	@Override
	protected void onRecordLoaded() {
	// One record loaded successfully or failed, In either case
	// we need to update the recordsToLoad count
	mRecordsToLoad -= 1;
	if (DBG) log("onRecordLoaded " + mRecordsToLoad + " requested: " + mRecordsRequested);

	if (mRecordsToLoad == 0 && mRecordsRequested == true) {
	onAllRecordsLoaded();
	} else if (mRecordsToLoad < 0) {
	loge("recordsToLoad <0, programmer error suspected");
	mRecordsToLoad = 0;
	}
	}

	@Override
	protected void onAllRecordsLoaded() {
	if (DBG) log("record load complete");
	mRecordsLoadedRegistrants.notifyRegistrants(
	new AsyncResult(null, null, null));
	}

	private void handleFileUpdate(int efid) {
	switch (efid) {
	case EF_IMPI:
	mFh.loadEFTransparent(EF_IMPI, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpiLoaded()));
	mRecordsToLoad++;
	break;

	case EF_IMPU:
	mFh.loadEFLinearFixedAll(EF_IMPU, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimImpuLoaded()));
	mRecordsToLoad++;
	break;

	case EF_DOMAIN:
	mFh.loadEFTransparent(EF_DOMAIN, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimDomainLoaded()));
	mRecordsToLoad++;
	break;

	case EF_IST:
	mFh.loadEFTransparent(EF_IST, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimIstLoaded()));
	mRecordsToLoad++;
	break;

	case EF_PCSCF:
	mFh.loadEFLinearFixedAll(EF_PCSCF, obtainMessage(
	IccRecords.EVENT_GET_ICC_RECORD_DONE, new EfIsimPcscfLoaded()));
	mRecordsToLoad++;

	default:
	fetchIsimRecords();
	break;
	}
	}

	private void handleIsimRefresh(IccRefreshResponse refreshResponse) {
	if (refreshResponse == null) {
	if (DBG) log("handleIsimRefresh received without input");
	return;
	}

	if (refreshResponse.aid != null &&
	!refreshResponse.aid.equals(mParentApp.getAid())) {
	// This is for different app. Ignore.
	if (DBG) log("handleIsimRefresh received different app");
	return;
	}

	switch (refreshResponse.refreshResult) {
	case IccRefreshResponse.REFRESH_RESULT_FILE_UPDATE:
	if (DBG) log("handleIsimRefresh with REFRESH_RESULT_FILE_UPDATE");
	handleFileUpdate(refreshResponse.efId);
	break;

	case IccRefreshResponse.REFRESH_RESULT_INIT:
	if (DBG) log("handleIsimRefresh with REFRESH_RESULT_INIT");
	// need to reload all files (that we care about)
	// onIccRefreshInit();
	fetchIsimRecords();
	break;

	case IccRefreshResponse.REFRESH_RESULT_RESET:
	// Refresh reset is handled by the UiccCard object.
	if (DBG) log("handleIsimRefresh with REFRESH_RESULT_RESET");
	break;

	default:
	// unknown refresh operation
	if (DBG) log("handleIsimRefresh with unknown operation");
	break;
	}
	}

	/**
	* Return the IMS private user identity (IMPI).
	* Returns null if the IMPI hasn't been loaded or isn't present on the ISIM.
	* @return the IMS private user identity string, or null if not available
	*/
	@Override
	public String getIsimImpi() {
	return mIsimImpi;
	}

	/**
	* Return the IMS home network domain name.
	* Returns null if the IMS domain hasn't been loaded or isn't present on the ISIM.
	* @return the IMS home network domain name, or null if not available
	*/
	@Override
	public String getIsimDomain() {
	return mIsimDomain;
	}

	/**
	* Return an array of IMS public user identities (IMPU).
	* Returns null if the IMPU hasn't been loaded or isn't present on the ISIM.
	* @return an array of IMS public user identity strings, or null if not available
	*/
	@Override
	public String[] getIsimImpu() {
	return (mIsimImpu != null) ? mIsimImpu.clone() : null;
	}

	/**
	* Returns the IMS Service Table (IST) that was loaded from the ISIM.
	* @return IMS Service Table or null if not present or not loaded
	*/
	@Override
	public String getIsimIst() {
	return mIsimIst;
	}

	/**
	* Returns the IMS Proxy Call Session Control Function(PCSCF) that were loaded from the ISIM.
	* @return an array of PCSCF strings with one PCSCF per string, or null if
	* not present or not loaded
	*/
	@Override
	public String[] getIsimPcscf() {
	return (mIsimPcscf != null) ? mIsimPcscf.clone() : null;
	}

	/**
	* Returns the response of ISIM Authetification through RIL.
	* Returns null if the Authentification hasn't been successed or isn't present iphonesubinfo.
	* @return the response of ISIM Authetification, or null if not available
	*/
	@Override
	public String getIsimChallengeResponse(String nonce){
	if (DBG) log("getIsimChallengeResponse-nonce:"+nonce);
	try {
	synchronized(mLock) {
	mCi.requestIsimAuthentication(nonce,obtainMessage(EVENT_AKA_AUTHENTICATE_DONE));
	try {
	mLock.wait();
	} catch (InterruptedException e) {
	log("interrupted while trying to request Isim Auth");
	}
	}
	} catch(Exception e) {
	if (DBG) log( "Fail while trying to request Isim Auth");
	return null;
	}

	if (DBG) log("getIsimChallengeResponse-auth_rsp"+auth_rsp);

	return auth_rsp;
	}

	@Override
	public int getDisplayRule(String plmn) {
	// Not applicable to Isim
	return 0;
	}

	@Override
	public void onReady() {
	fetchIsimRecords();
	}

	@Override
	public void onRefresh(boolean fileChanged, int[] fileList) {
	if (fileChanged) {
	// A future optimization would be to inspect fileList and
	// only reload those files that we care about. For now,
	// just re-fetch all SIM records that we cache.
	fetchIsimRecords();
	}
	}

	@Override
	public void setVoiceMailNumber(String alphaTag, String voiceNumber,
	Message onComplete) {
	// Not applicable to Isim
	}

	@Override
	public void setVoiceMessageWaiting(int line, int countWaiting) {
	// Not applicable to Isim
	}

	@Override
	protected void log(String s) {
	if (DBG) Rlog.d(LOG_TAG, "[ISIM] " + s);
	}

	@Override
	protected void loge(String s) {
	if (DBG) Rlog.e(LOG_TAG, "[ISIM] " + s);
	}

	@Override
	public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
	pw.println("IsimRecords: " + this);
	pw.println(" extends:");
	super.dump(fd, pw, args);
	pw.println(" mIsimImpi=" + mIsimImpi);
	pw.println(" mIsimDomain=" + mIsimDomain);
	pw.println(" mIsimImpu[]=" + Arrays.toString(mIsimImpu));
	pw.println(" mIsimIst" + mIsimIst);
	pw.println(" mIsimPcscf"+mIsimPcscf);
	pw.flush();
	}

	@Override
	public int getVoiceMessageCount() {
	return 0; // Not applicable to Isim
	}

	}