rootpa/Code/Android/app/src/com/gd/mobicore/pa/service/DeveloperService.java

/*
Copyright  © Trustonic Limited 2013

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this 
     list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright notice, 
     this list of conditions and the following disclaimer in the documentation 
     and/or other materials provided with the distribution.

  3. Neither the name of the Trustonic Limited nor the names of its contributors 
     may be used to endorse or promote products derived from this software 
     without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package com.gd.mobicore.pa.service;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.Bundle;

import java.util.Random;

import com.gd.mobicore.pa.jni.CommonPAWrapper;
import com.gd.mobicore.pa.ifc.RootPAProvisioningIntents;
import com.gd.mobicore.pa.ifc.RootPADeveloperIfc;
import com.gd.mobicore.pa.ifc.CommandResult;
import com.gd.mobicore.pa.ifc.BooleanResult;
import com.gd.mobicore.pa.ifc.TrustletContainer;

public class DeveloperService extends BaseService {

    private final RootPADeveloperIfc.Stub mBinder = new ServiceIfc();
    private static final int DEVELOPER_UID_FOR_LOCK=0x22220000;
    private static final int UUID_LENGTH=16;
    private static final int EXTERNAL_MEMORY=2;
    private static final int DEFAULT_MEMORY_TYPE=EXTERNAL_MEMORY;
    private static final int DEFAULT_NUMBER_OF_INSTANCES=1;
    private static final int DEFAULT_FLAGS=0;    
    private static final byte[] DEFAULT_PUKHASH={0,0,0,0,0,0,0,0,0,0,
                                                 0,0,0,0,0,0,0,0,0,0,
                                                 0,0,0,0,0,0,0,0,0,0,0,0};
    private class ServiceIfc extends RootPADeveloperIfc.Stub {
        public ServiceIfc(){
            super();
        }

        // note that these values have to be in line with TltInstallationRequestDataType in rootpa.h
        public static final int REQUEST_DATA_TLT=1;
        public static final int REQUEST_DATA_KEY=2;    


        private CommonPAWrapper commonPAWrapper(){
            return DeveloperService.this.commonPAWrapper();
        }

        private boolean uuidOk(byte[] uuid){
            if(uuid==null || uuid.length != UUID_LENGTH){
                Log.e(TAG,"DeveloperService.Stub.uuidOk NOK");
                return false;
            }
            Log.d(TAG,"DeveloperService.Stub.uuidOk OK");
            return true;
        }
        
        public CommandResult installTrustletOrKey(int spid, byte[] uuid, byte[] trustletBinary, byte[] key, int minTltVersion, byte[] tltPukHash){
            Log.d(TAG,">>DeveloperService.Stub.installTrustletOrKey"); 
            if(tltPukHash==null){
                tltPukHash=DEFAULT_PUKHASH;
            }
            
            if((trustletBinary == null && key == null) || (trustletBinary != null && key != null) || 0==spid || !uuidOk(uuid) ){
                return new CommandResult(CommandResult.ROOTPA_ERROR_ILLEGAL_ARGUMENT);
            }

            int tmpSuid=DEVELOPER_UID_FOR_LOCK+new Random().nextInt(); 

            if(!DeveloperService.this.acquireLock(tmpSuid, false).isOk()){
                return new CommandResult(CommandResult.ROOTPA_ERROR_LOCK);
            }
            doProvisioningLockSuid_=tmpSuid;
            int err=0;
            byte[] data=null;
            int dataType;            
            try{
                if(trustletBinary != null){
                    data=trustletBinary;
                    dataType=REQUEST_DATA_TLT;
                }else{
                    data=key;
                    dataType=REQUEST_DATA_KEY;
                }
                setupProxy();    
                err=commonPAWrapper().installTrustlet(spid, 
                                                      uuid, 
                                                      dataType, 
                                                      data,  
                                                      minTltVersion, 
                                                      tltPukHash, 
                                                      DEFAULT_MEMORY_TYPE, 
                                                      DEFAULT_NUMBER_OF_INSTANCES, 
                                                      DEFAULT_FLAGS, 
                                                      se_);
            }catch(Exception e){
                Log.e(TAG,"CommonPAWrapper().installTrustletOrKey exception: ", e);
                err=CommandResult.ROOTPA_ERROR_INTERNAL;
            }

            Log.d(TAG,"<<DeveloperService.Stub.installTrustletOrKey");
            return new CommandResult(err);
        }
        
        public CommandResult installTrustlet(int spid, 
                                             byte[] uuid, 
                                             byte[] trustletBinary, 
                                             int minTltVersion, 
                                             byte[] tltPukHash, 
                                             int memoryType, 
                                             int numberOfInstances, 
                                             int flags){
            Log.d(TAG,">>DeveloperService.Stub.installTrustlet"); 
            if(tltPukHash==null){
                tltPukHash=DEFAULT_PUKHASH;
            }

                                                 
            if(trustletBinary == null || 0==spid || !uuidOk(uuid) || memoryType > EXTERNAL_MEMORY){
                return new CommandResult(CommandResult.ROOTPA_ERROR_ILLEGAL_ARGUMENT);
            }

            int tmpSuid=DEVELOPER_UID_FOR_LOCK+new Random().nextInt(); 

            if(!DeveloperService.this.acquireLock(tmpSuid, false).isOk()){
                return new CommandResult(CommandResult.ROOTPA_ERROR_LOCK);
            }
            doProvisioningLockSuid_=tmpSuid;
            int err=0;
            try{
                setupProxy();    
                err=commonPAWrapper().installTrustlet(spid, 
                                                      uuid, 
                                                      REQUEST_DATA_TLT, 
                                                      trustletBinary, 
                                                      minTltVersion, 
                                                      tltPukHash,
                                                      memoryType, 
                                                      numberOfInstances, 
                                                      flags, 
                                                      se_);
            }catch(Exception e){
                Log.e(TAG,"CommonPAWrapper().installTrustlet exception: ", e);
                err=CommandResult.ROOTPA_ERROR_INTERNAL;
            }

            Log.d(TAG,"<<DeveloperService.Stub.installTrustlet");
            return new CommandResult(err);
        }        
    }
    
    @Override
    public void onCreate() {
        Log.d(TAG,"Hello, DeveloperService onCreate");
        super.onCreate();
    }

    @Override
    public void onLowMemory() {
        Log.d(TAG,"DeveloperService onLowMemory");
        super.onLowMemory();    
    }

    public void onDestroy(){
        super.onDestroy();
        Log.d(TAG,"DeveloperService being destroyed");
    }
    
    @Override
    public IBinder onBind(Intent intent){
        try{
            se_ = intent.getByteArrayExtra("SE");
        }catch(Exception e){
            Log.i(TAG,"DeveloperService something wrong in the given ip "+e );
        }

        try{        
            Log.setLoggingLevel(intent.getIntExtra("LOG",0));
        }catch(Exception e){
            Log.i(TAG,"DeveloperService something wrong in the given logging level "+e );
        }
        Log.i(TAG,"DeveloperService binding");
        if(se_!=null) Log.d(TAG,new String(se_));
        return mBinder;

    }

    @Override
    public int  onStartCommand(Intent i, int flags, int startid){
        Log.d(TAG,"DeveloperService starting");
        return START_STICKY; 
    }    
}