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/*
* Copyright (C) 2010 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 android.nfc;
import android.nfc.tech.TagTechnology;
import android.os.RemoteException;
import android.util.Log;
import java.io.IOException;
//import android.util.Log;
/**
* This class provides the primary API for managing all aspects Secure Element.
* Get an instance of this class by calling
* Context.getSystemService(Context.NFC_SERVICE).
* @hide
*/
public final class NfcSecureElement {
private static final String TAG = "NfcSecureElement";
private INfcSecureElement mService;
/**
* @hide
*/
public NfcSecureElement(INfcSecureElement mSecureElementService) {
mService = mSecureElementService;
}
public int openSecureElementConnection(String seType) throws IOException {
if (seType.equals("SmartMX")) {
try {
int handle = mService.openSecureElementConnection();
// Handle potential errors
if (handle != 0) {
return handle;
} else {
throw new IOException("SmartMX connection not allowed");
}
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in openSecureElementConnection(): ", e);
return 0;
}
} else if (seType.equals("UICC")) {
return 0;
} else {
throw new IOException("Wrong Secure Element type");
}
}
public byte [] exchangeAPDU(int handle,byte [] data) throws IOException {
// Perform exchange APDU
try {
byte[] response = mService.exchangeAPDU(handle, data);
// Handle potential errors
if (response == null) {
throw new IOException("Exchange APDU failed");
}
return response;
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in exchangeAPDU(): ", e);
return null;
}
}
public void closeSecureElementConnection(int handle) throws IOException {
try {
int status = mService.closeSecureElementConnection(handle);
// Handle potential errors
if (ErrorCodes.isError(status)) {
throw new IOException("Error during the conection close");
};
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in closeSecureElement(): ", e);
}
}
/**
* Returns target type. constants.
*
* @return Secure Element technology type. The possible values are defined in
* {@link TagTechnology}
*
*/
public int[] getSecureElementTechList(int handle) throws IOException {
try {
return mService.getSecureElementTechList(handle);
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in getType(): ", e);
return null;
}
}
/**
* Returns Secure Element UID.
*
* @return Secure Element UID.
*/
public byte[] getSecureElementUid(int handle) throws IOException {
byte[] uid = null;
try {
uid = mService.getSecureElementUid(handle);
// Handle potential errors
if (uid == null) {
throw new IOException("Get Secure Element UID failed");
}
return uid;
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in getType(): ", e);
return null;
}
}
}
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