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android / platform / packages / apps / Nfc / bb78d3749bd0cc3801fdd9d5df06b0f6ee7a400f / . / src / com / android / nfc / NfcService.java
blob: 2e857da0867383044ba034351854d9d3eda42f75 [file] [log] [blame]
/*
* 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 com.android.nfc;
import com.android.internal.nfc.LlcpServiceSocket;
import com.android.internal.nfc.LlcpSocket;
import com.android.nfc.mytag.MyTagClient;
import com.android.nfc.mytag.MyTagServer;
import android.app.Application;
import android.app.StatusBarManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.net.Uri;
import android.nfc.ErrorCodes;
import android.nfc.FormatException;
import android.nfc.ILlcpConnectionlessSocket;
import android.nfc.ILlcpServiceSocket;
import android.nfc.ILlcpSocket;
import android.nfc.INfcAdapter;
import android.nfc.INfcSecureElement;
import android.nfc.INfcTag;
import android.nfc.IP2pInitiator;
import android.nfc.IP2pTarget;
import android.nfc.LlcpPacket;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.Charsets;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.Timer;
import java.util.TimerTask;
public class NfcService extends Application {
static final boolean DBG = false;
private static final String MY_TAG_FILE_NAME = "mytag";
static {
System.loadLibrary("nfc_jni");
}
/**
* NFC Forum "URI Record Type Definition"
*
* This is a mapping of "URI Identifier Codes" to URI string prefixes,
* per section 3.2.2 of the NFC Forum URI Record Type Definition document.
*/
private static final String[] URI_PREFIX_MAP = new String[] {
"", // 0x00
"http://www.", // 0x01
"https://www.", // 0x02
"http://", // 0x03
"https://", // 0x04
"tel:", // 0x05
"mailto:", // 0x06
"ftp://anonymous:anonymous@", // 0x07
"ftp://ftp.", // 0x08
"ftps://", // 0x09
"sftp://", // 0x0A
"smb://", // 0x0B
"nfs://", // 0x0C
"ftp://", // 0x0D
"dav://", // 0x0E
"news:", // 0x0F
"telnet://", // 0x10
"imap:", // 0x11
"rtsp://", // 0x12
"urn:", // 0x13
"pop:", // 0x14
"sip:", // 0x15
"sips:", // 0x16
"tftp:", // 0x17
"btspp://", // 0x18
"btl2cap://", // 0x19
"btgoep://", // 0x1A
"tcpobex://", // 0x1B
"irdaobex://", // 0x1C
"file://", // 0x1D
"urn:epc:id:", // 0x1E
"urn:epc:tag:", // 0x1F
"urn:epc:pat:", // 0x20
"urn:epc:raw:", // 0x21
"urn:epc:", // 0x22
};
public static final String SERVICE_NAME = "nfc";
private static final String TAG = "NfcService";
private static final String NFC_PERM = android.Manifest.permission.NFC;
private static final String NFC_PERM_ERROR = "NFC permission required";
private static final String ADMIN_PERM = android.Manifest.permission.WRITE_SECURE_SETTINGS;
private static final String ADMIN_PERM_ERROR = "WRITE_SECURE_SETTINGS permission required";
private static final String PREF = "NfcServicePrefs";
private static final String PREF_NFC_ON = "nfc_on";
private static final boolean NFC_ON_DEFAULT = true;
private static final String PREF_SECURE_ELEMENT_ON = "secure_element_on";
private static final boolean SECURE_ELEMENT_ON_DEFAULT = false;
private static final String PREF_SECURE_ELEMENT_ID = "secure_element_id";
private static final int SECURE_ELEMENT_ID_DEFAULT = 0;
private static final String PREF_LLCP_LTO = "llcp_lto";
private static final int LLCP_LTO_DEFAULT = 150;
private static final int LLCP_LTO_MAX = 255;
/** Maximum Information Unit */
private static final String PREF_LLCP_MIU = "llcp_miu";
private static final int LLCP_MIU_DEFAULT = 128;
private static final int LLCP_MIU_MAX = 2176;
/** Well Known Service List */
private static final String PREF_LLCP_WKS = "llcp_wks";
private static final int LLCP_WKS_DEFAULT = 1;
private static final int LLCP_WKS_MAX = 15;
private static final String PREF_LLCP_OPT = "llcp_opt";
private static final int LLCP_OPT_DEFAULT = 0;
private static final int LLCP_OPT_MAX = 3;
private static final String PREF_DISCOVERY_A = "discovery_a";
private static final boolean DISCOVERY_A_DEFAULT = true;
private static final String PREF_DISCOVERY_B = "discovery_b";
private static final boolean DISCOVERY_B_DEFAULT = true;
private static final String PREF_DISCOVERY_F = "discovery_f";
private static final boolean DISCOVERY_F_DEFAULT = true;
private static final String PREF_DISCOVERY_15693 = "discovery_15693";
private static final boolean DISCOVERY_15693_DEFAULT = true;
private static final String PREF_DISCOVERY_NFCIP = "discovery_nfcip";
private static final boolean DISCOVERY_NFCIP_DEFAULT = true;
/** NFC Reader Discovery mode for enableDiscovery() */
private static final int DISCOVERY_MODE_READER = 0;
/** Card Emulation Discovery mode for enableDiscovery() */
private static final int DISCOVERY_MODE_CARD_EMULATION = 2;
private static final int LLCP_SERVICE_SOCKET_TYPE = 0;
private static final int LLCP_SOCKET_TYPE = 1;
private static final int LLCP_CONNECTIONLESS_SOCKET_TYPE = 2;
private static final int LLCP_SOCKET_NB_MAX = 5; // Maximum number of socket managed
private static final int LLCP_RW_MAX_VALUE = 15; // Receive Window
private static final int PROPERTY_LLCP_LTO = 0;
private static final String PROPERTY_LLCP_LTO_VALUE = "llcp.lto";
private static final int PROPERTY_LLCP_MIU = 1;
private static final String PROPERTY_LLCP_MIU_VALUE = "llcp.miu";
private static final int PROPERTY_LLCP_WKS = 2;
private static final String PROPERTY_LLCP_WKS_VALUE = "llcp.wks";
private static final int PROPERTY_LLCP_OPT = 3;
private static final String PROPERTY_LLCP_OPT_VALUE = "llcp.opt";
private static final int PROPERTY_NFC_DISCOVERY_A = 4;
private static final String PROPERTY_NFC_DISCOVERY_A_VALUE = "discovery.iso14443A";
private static final int PROPERTY_NFC_DISCOVERY_B = 5;
private static final String PROPERTY_NFC_DISCOVERY_B_VALUE = "discovery.iso14443B";
private static final int PROPERTY_NFC_DISCOVERY_F = 6;
private static final String PROPERTY_NFC_DISCOVERY_F_VALUE = "discovery.felica";
private static final int PROPERTY_NFC_DISCOVERY_15693 = 7;
private static final String PROPERTY_NFC_DISCOVERY_15693_VALUE = "discovery.iso15693";
private static final int PROPERTY_NFC_DISCOVERY_NFCIP = 8;
private static final String PROPERTY_NFC_DISCOVERY_NFCIP_VALUE = "discovery.nfcip";
static final int MSG_NDEF_TAG = 0;
static final int MSG_CARD_EMULATION = 1;
static final int MSG_LLCP_LINK_ACTIVATION = 2;
static final int MSG_LLCP_LINK_DEACTIVATED = 3;
static final int MSG_TARGET_DESELECTED = 4;
static final int MSG_SHOW_MY_TAG_ICON = 5;
static final int MSG_HIDE_MY_TAG_ICON = 6;
static final int MSG_MOCK_NDEF = 7;
// TODO: none of these appear to be synchronized but are
// read/written from different threads (notably Binder threads)...
private final LinkedList<RegisteredSocket> mRegisteredSocketList = new LinkedList<RegisteredSocket>();
private int mLlcpLinkState = NfcAdapter.LLCP_LINK_STATE_DEACTIVATED;
private int mGeneratedSocketHandle = 0;
private int mNbSocketCreated = 0;
private volatile boolean mIsNfcEnabled = false;
private int mSelectedSeId = 0;
private boolean mNfcSecureElementState;
// Secure element
private Timer mTimerOpenSmx;
private boolean isClosed = false;
private boolean isOpened = false;
private boolean mOpenSmxPending = false;
private NativeNfcSecureElement mSecureElement;
private int mSecureElementHandle;
// fields below are used in multiple threads and protected by synchronized(this)
private final HashMap<Integer, Object> mObjectMap = new HashMap<Integer, Object>();
private final HashMap<Integer, Object> mSocketMap = new HashMap<Integer, Object>();
private boolean mScreenOn;
// fields below are final after onCreate()
private Context mContext;
private NativeNfcManager mManager;
private SharedPreferences mPrefs;
private SharedPreferences.Editor mPrefsEditor;
private PowerManager.WakeLock mWakeLock;
private MyTagServer mMyTagServer;
private MyTagClient mMyTagClient;
private static NfcService sService;
public static NfcService getInstance() {
return sService;
}
@Override
public void onCreate() {
super.onCreate();
Log.i(TAG, "Starting NFC service");
sService = this;
mContext = this;
mManager = new NativeNfcManager(mContext, this);
mManager.initializeNativeStructure();
mMyTagServer = new MyTagServer();
mMyTagClient = new MyTagClient(this);
mSecureElement = new NativeNfcSecureElement();
mPrefs = mContext.getSharedPreferences(PREF, Context.MODE_PRIVATE);
mPrefsEditor = mPrefs.edit();
mIsNfcEnabled = false; // real preference read later
PowerManager pm = (PowerManager)getSystemService(Context.POWER_SERVICE);
mScreenOn = pm.isScreenOn();
mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "NfcService");
ServiceManager.addService(SERVICE_NAME, mNfcAdapter);
IntentFilter filter = new IntentFilter(NativeNfcManager.INTERNAL_TARGET_DESELECTED_ACTION);
filter.addAction(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_SCREEN_ON);
mContext.registerReceiver(mReceiver, filter);
Thread t = new Thread() {
@Override
public void run() {
boolean nfc_on = mPrefs.getBoolean(PREF_NFC_ON, NFC_ON_DEFAULT);
if (nfc_on) {
_enable(false);
}
}
};
t.start();
}
@Override
public void onTerminate() {
super.onTerminate();
// NFC application is persistent, it should not be destroyed by framework
Log.wtf(TAG, "NFC service is under attack!");
}
private final INfcAdapter.Stub mNfcAdapter = new INfcAdapter.Stub() {
/** Protected by "this" */
NdefMessage mLocalMessage = null;
@Override
public boolean enable() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
boolean isSuccess = false;
boolean previouslyEnabled = isEnabled();
if (!previouslyEnabled) {
reset();
isSuccess = _enable(previouslyEnabled);
}
return isSuccess;
}
@Override
public boolean disable() throws RemoteException {
boolean isSuccess = false;
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
boolean previouslyEnabled = isEnabled();
if (DBG) Log.d(TAG, "Disabling NFC. previous=" + previouslyEnabled);
if (previouslyEnabled) {
/* tear down the my tag server */
mMyTagServer.stop();
isSuccess = mManager.deinitialize();
if (DBG) Log.d(TAG, "NFC success of deinitialize = " + isSuccess);
if (isSuccess) {
mIsNfcEnabled = false;
}
}
updateNfcOnSetting(previouslyEnabled);
return isSuccess;
}
@Override
public int createLlcpConnectionlessSocket(int sap) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* Check SAP is not already used */
/* Check nb socket created */
if (mNbSocketCreated < LLCP_SOCKET_NB_MAX) {
/* Store the socket handle */
int sockeHandle = mGeneratedSocketHandle;
if (mLlcpLinkState == NfcAdapter.LLCP_LINK_STATE_ACTIVATED) {
NativeLlcpConnectionlessSocket socket;
socket = mManager.doCreateLlcpConnectionlessSocket(sap);
if (socket != null) {
synchronized(NfcService.this) {
/* Update the number of socket created */
mNbSocketCreated++;
/* Add the socket into the socket map */
mSocketMap.put(sockeHandle, socket);
}
return sockeHandle;
} else {
/*
* socket creation error - update the socket handle
* generation
*/
mGeneratedSocketHandle -= 1;
/* Get Error Status */
int errorStatus = mManager.doGetLastError();
switch (errorStatus) {
case ErrorCodes.ERROR_BUFFER_TO_SMALL:
return ErrorCodes.ERROR_BUFFER_TO_SMALL;
case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
default:
return ErrorCodes.ERROR_SOCKET_CREATION;
}
}
} else {
/* Check SAP is not already used */
if (!CheckSocketSap(sap)) {
return ErrorCodes.ERROR_SAP_USED;
}
NativeLlcpConnectionlessSocket socket = new NativeLlcpConnectionlessSocket(sap);
synchronized(NfcService.this) {
/* Add the socket into the socket map */
mSocketMap.put(sockeHandle, socket);
/* Update the number of socket created */
mNbSocketCreated++;
}
/* Create new registered socket */
RegisteredSocket registeredSocket = new RegisteredSocket(
LLCP_CONNECTIONLESS_SOCKET_TYPE, sockeHandle, sap);
/* Put this socket into a list of registered socket */
mRegisteredSocketList.add(registeredSocket);
}
/* update socket handle generation */
mGeneratedSocketHandle++;
return sockeHandle;
} else {
/* No socket available */
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
}
}
@Override
public int createLlcpServiceSocket(int sap, String sn, int miu, int rw, int linearBufferLength)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (mNbSocketCreated < LLCP_SOCKET_NB_MAX) {
int sockeHandle = mGeneratedSocketHandle;
if (mLlcpLinkState == NfcAdapter.LLCP_LINK_STATE_ACTIVATED) {
NativeLlcpServiceSocket socket;
socket = mManager.doCreateLlcpServiceSocket(sap, sn, miu, rw, linearBufferLength);
if (socket != null) {
synchronized(NfcService.this) {
/* Update the number of socket created */
mNbSocketCreated++;
/* Add the socket into the socket map */
mSocketMap.put(sockeHandle, socket);
}
} else {
/* socket creation error - update the socket handle counter */
mGeneratedSocketHandle -= 1;
/* Get Error Status */
int errorStatus = mManager.doGetLastError();
switch (errorStatus) {
case ErrorCodes.ERROR_BUFFER_TO_SMALL:
return ErrorCodes.ERROR_BUFFER_TO_SMALL;
case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
default:
return ErrorCodes.ERROR_SOCKET_CREATION;
}
}
} else {
/* Check SAP is not already used */
if (!CheckSocketSap(sap)) {
return ErrorCodes.ERROR_SAP_USED;
}
/* Service Name */
if (!CheckSocketServiceName(sn)) {
return ErrorCodes.ERROR_SERVICE_NAME_USED;
}
/* Check socket options */
if (!CheckSocketOptions(miu, rw, linearBufferLength)) {
return ErrorCodes.ERROR_SOCKET_OPTIONS;
}
NativeLlcpServiceSocket socket = new NativeLlcpServiceSocket(sap, sn, miu, rw,
linearBufferLength);
synchronized(NfcService.this) {
/* Add the socket into the socket map */
mSocketMap.put(sockeHandle, socket);
/* Update the number of socket created */
mNbSocketCreated++;
}
/* Create new registered socket */
RegisteredSocket registeredSocket = new RegisteredSocket(LLCP_SERVICE_SOCKET_TYPE,
sockeHandle, sap, sn, miu, rw, linearBufferLength);
/* Put this socket into a list of registered socket */
mRegisteredSocketList.add(registeredSocket);
}
/* update socket handle generation */
mGeneratedSocketHandle += 1;
if (DBG) Log.d(TAG, "Llcp Service Socket Handle =" + sockeHandle);
return sockeHandle;
} else {
/* No socket available */
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
}
}
@Override
public int createLlcpSocket(int sap, int miu, int rw, int linearBufferLength)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (mNbSocketCreated < LLCP_SOCKET_NB_MAX) {
int sockeHandle = mGeneratedSocketHandle;
if (mLlcpLinkState == NfcAdapter.LLCP_LINK_STATE_ACTIVATED) {
if (DBG) Log.d(TAG, "creating llcp socket while activated");
NativeLlcpSocket socket;
socket = mManager.doCreateLlcpSocket(sap, miu, rw, linearBufferLength);
if (socket != null) {
synchronized(NfcService.this) {
/* Update the number of socket created */
mNbSocketCreated++;
/* Add the socket into the socket map */
mSocketMap.put(sockeHandle, socket);
}
} else {
/*
* socket creation error - update the socket handle
* generation
*/
mGeneratedSocketHandle -= 1;
/* Get Error Status */
int errorStatus = mManager.doGetLastError();
Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(errorStatus));
switch (errorStatus) {
case ErrorCodes.ERROR_BUFFER_TO_SMALL:
return ErrorCodes.ERROR_BUFFER_TO_SMALL;
case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
default:
return ErrorCodes.ERROR_SOCKET_CREATION;
}
}
} else {
if (DBG) Log.d(TAG, "registering llcp socket while not activated");
/* Check SAP is not already used */
if (!CheckSocketSap(sap)) {
return ErrorCodes.ERROR_SAP_USED;
}
/* Check Socket options */
if (!CheckSocketOptions(miu, rw, linearBufferLength)) {
return ErrorCodes.ERROR_SOCKET_OPTIONS;
}
NativeLlcpSocket socket = new NativeLlcpSocket(sap, miu, rw);
synchronized(NfcService.this) {
/* Add the socket into the socket map */
mSocketMap.put(sockeHandle, socket);
/* Update the number of socket created */
mNbSocketCreated++;
}
/* Create new registered socket */
RegisteredSocket registeredSocket = new RegisteredSocket(LLCP_SOCKET_TYPE,
sockeHandle, sap, miu, rw, linearBufferLength);
/* Put this socket into a list of registered socket */
mRegisteredSocketList.add(registeredSocket);
}
/* update socket handle generation */
mGeneratedSocketHandle++;
return sockeHandle;
} else {
/* No socket available */
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
}
}
@Override
public int deselectSecureElement() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (mSelectedSeId == 0) {
return ErrorCodes.ERROR_NO_SE_CONNECTED;
}
mManager.doDeselectSecureElement(mSelectedSeId);
mNfcSecureElementState = false;
mSelectedSeId = 0;
/* store preference */
mPrefsEditor.putBoolean(PREF_SECURE_ELEMENT_ON, false);
mPrefsEditor.putInt(PREF_SECURE_ELEMENT_ID, 0);
mPrefsEditor.apply();
return ErrorCodes.SUCCESS;
}
@Override
public ILlcpConnectionlessSocket getLlcpConnectionlessInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mLlcpConnectionlessSocketService;
}
@Override
public ILlcpSocket getLlcpInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mLlcpSocket;
}
@Override
public ILlcpServiceSocket getLlcpServiceInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mLlcpServerSocketService;
}
@Override
public INfcTag getNfcTagInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mNfcTagService;
}
@Override
public IP2pInitiator getP2pInitiatorInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mP2pInitiatorService;
}
@Override
public IP2pTarget getP2pTargetInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mP2pTargetService;
}
public INfcSecureElement getNfcSecureElementInterface() {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mSecureElementService;
}
@Override
public String getProperties(String param) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
if (param == null) {
return null;
}
if (param.equals(PROPERTY_LLCP_LTO_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_LTO, LLCP_LTO_DEFAULT));
} else if (param.equals(PROPERTY_LLCP_MIU_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_MIU, LLCP_MIU_DEFAULT));
} else if (param.equals(PROPERTY_LLCP_WKS_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_WKS, LLCP_WKS_DEFAULT));
} else if (param.equals(PROPERTY_LLCP_OPT_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_OPT, LLCP_OPT_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_A_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_A, DISCOVERY_A_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_B_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_B, DISCOVERY_B_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_F_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_F, DISCOVERY_F_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_NFCIP_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_NFCIP, DISCOVERY_NFCIP_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_15693_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_15693, DISCOVERY_15693_DEFAULT));
} else {
return "Unknown property";
}
}
@Override
public int[] getSecureElementList() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
int[] list = null;
if (mIsNfcEnabled == true) {
list = mManager.doGetSecureElementList();
}
return list;
}
@Override
public int getSelectedSecureElement() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
return mSelectedSeId;
}
@Override
public boolean isEnabled() throws RemoteException {
return mIsNfcEnabled;
}
@Override
public void openTagConnection(Tag tag) throws RemoteException {
// TODO: Remove obsolete code
}
@Override
public int selectSecureElement(int seId) throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (mSelectedSeId == seId) {
return ErrorCodes.ERROR_SE_ALREADY_SELECTED;
}
if (mSelectedSeId != 0) {
return ErrorCodes.ERROR_SE_CONNECTED;
}
mSelectedSeId = seId;
mManager.doSelectSecureElement(mSelectedSeId);
/* store */
mPrefsEditor.putBoolean(PREF_SECURE_ELEMENT_ON, true);
mPrefsEditor.putInt(PREF_SECURE_ELEMENT_ID, mSelectedSeId);
mPrefsEditor.apply();
mNfcSecureElementState = true;
return ErrorCodes.SUCCESS;
}
@Override
public int setProperties(String param, String value) throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
if (isEnabled()) {
return ErrorCodes.ERROR_NFC_ON;
}
int val;
/* Check params validity */
if (param == null || value == null) {
return ErrorCodes.ERROR_INVALID_PARAM;
}
if (param.equals(PROPERTY_LLCP_LTO_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if (val > LLCP_LTO_MAX)
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_LTO, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_LTO, val);
} else if (param.equals(PROPERTY_LLCP_MIU_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if ((val < LLCP_MIU_DEFAULT) || (val > LLCP_MIU_MAX))
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_MIU, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_MIU, val);
} else if (param.equals(PROPERTY_LLCP_WKS_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if (val > LLCP_WKS_MAX)
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_WKS, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_WKS, val);
} else if (param.equals(PROPERTY_LLCP_OPT_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if (val > LLCP_OPT_MAX)
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_OPT, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_OPT, val);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_A_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_A, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_A, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_B_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_B, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_B, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_F_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_F, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_F, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_15693_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_15693, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_15693, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_NFCIP_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_NFCIP, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_NFCIP, b ? 1 : 0);
} else {
return ErrorCodes.ERROR_INVALID_PARAM;
}
return ErrorCodes.SUCCESS;
}
@Override
public NdefMessage localGet() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
synchronized (this) {
return mLocalMessage;
}
}
@Override
public void localSet(NdefMessage message) throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
synchronized (this) {
mLocalMessage = message;
Context context = NfcService.this.getApplicationContext();
// Send a message to the UI thread to show or hide the icon so the requests are
// serialized and the icon can't get out of sync with reality.
if (message != null) {
FileOutputStream out = null;
try {
out = context.openFileOutput(MY_TAG_FILE_NAME, Context.MODE_PRIVATE);
byte[] bytes = message.toByteArray();
if (bytes.length == 0) {
Log.w(TAG, "Setting a empty mytag");
}
out.write(bytes);
} catch (IOException e) {
Log.e(TAG, "Could not write mytag file", e);
} finally {
try {
if (out != null) {
out.flush();
out.close();
}
} catch (IOException e) {
// Ignore
}
}
// Only show the icon if NFC is enabled.
if (mIsNfcEnabled) {
sendMessage(MSG_SHOW_MY_TAG_ICON, null);
}
} else {
context.deleteFile(MY_TAG_FILE_NAME);
sendMessage(MSG_HIDE_MY_TAG_ICON, null);
}
}
}
};
private final ILlcpSocket mLlcpSocket = new ILlcpSocket.Stub() {
private final int CONNECT_FLAG = 0x01;
private final int CLOSE_FLAG = 0x02;
private final int RECV_FLAG = 0x04;
private final int SEND_FLAG = 0x08;
private int concurrencyFlags;
private Object sync;
@Override
public int close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
if (mLlcpLinkState == NfcAdapter.LLCP_LINK_STATE_ACTIVATED) {
isSuccess = socket.doClose();
if (isSuccess) {
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
/* Update mNbSocketCreated */
mNbSocketCreated--;
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
/* Remove registered socket from the list */
RemoveRegisteredSocket(nativeHandle);
/* Update mNbSocketCreated */
mNbSocketCreated--;
return ErrorCodes.SUCCESS;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int connect(int nativeHandle, int sap) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doConnect(sap);
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int connectByName(int nativeHandle, String sn) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doConnectBy(sn);
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int getLocalSap(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
return socket.getSap();
} else {
return 0;
}
}
@Override
public int getLocalSocketMiu(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
return socket.getMiu();
} else {
return 0;
}
}
@Override
public int getLocalSocketRw(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
return socket.getRw();
} else {
return 0;
}
}
@Override
public int getRemoteSocketMiu(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
if (socket.doGetRemoteSocketMiu() != 0) {
return socket.doGetRemoteSocketMiu();
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
}
@Override
public int getRemoteSocketRw(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
if (socket.doGetRemoteSocketRw() != 0) {
return socket.doGetRemoteSocketRw();
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
}
@Override
public int receive(int nativeHandle, byte[] receiveBuffer) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
int receiveLength = 0;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
return socket.doReceive(receiveBuffer);
} else {
return 0;
}
}
@Override
public int send(int nativeHandle, byte[] data) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpSocket) findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doSend(data);
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
};
private final ILlcpServiceSocket mLlcpServerSocketService = new ILlcpServiceSocket.Stub() {
@Override
public int accept(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpServiceSocket socket = null;
NativeLlcpSocket clientSocket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (mNbSocketCreated < LLCP_SOCKET_NB_MAX) {
/* find the socket in the hmap */
socket = (NativeLlcpServiceSocket) findSocket(nativeHandle);
if (socket != null) {
clientSocket = socket.doAccept(socket.getMiu(),
socket.getRw(), socket.getLinearBufferLength());
if (clientSocket != null) {
/* Add the socket into the socket map */
synchronized(this) {
mSocketMap.put(clientSocket.getHandle(), clientSocket);
mNbSocketCreated++;
}
return clientSocket.getHandle();
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
}
}
@Override
public void close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpServiceSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return;
}
/* find the socket in the hmap */
boolean closed = false;
socket = (NativeLlcpServiceSocket) findSocket(nativeHandle);
if (socket != null) {
if (mLlcpLinkState == NfcAdapter.LLCP_LINK_STATE_ACTIVATED) {
isSuccess = socket.doClose();
if (isSuccess) {
closed = true;
}
} else {
closed = true;
}
}
// If the socket is closed remove it from the socket lists
if (closed) {
synchronized (this) {
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
/* Update mNbSocketCreated */
mNbSocketCreated--;
/* Remove registered socket from the list */
RemoveRegisteredSocket(nativeHandle);
}
}
}
};
private final ILlcpConnectionlessSocket mLlcpConnectionlessSocketService = new ILlcpConnectionlessSocket.Stub() {
@Override
public void close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return;
}
/* find the socket in the hmap */
socket = (NativeLlcpConnectionlessSocket) findSocket(nativeHandle);
if (socket != null) {
if (mLlcpLinkState == NfcAdapter.LLCP_LINK_STATE_ACTIVATED) {
isSuccess = socket.doClose();
if (isSuccess) {
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
/* Update mNbSocketCreated */
mNbSocketCreated--;
}
} else {
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
/* Remove registered socket from the list */
RemoveRegisteredSocket(nativeHandle);
/* Update mNbSocketCreated */
mNbSocketCreated--;
}
}
}
@Override
public int getSap(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpConnectionlessSocket) findSocket(nativeHandle);
if (socket != null) {
return socket.getSap();
} else {
return 0;
}
}
@Override
public LlcpPacket receiveFrom(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
LlcpPacket packet;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the socket in the hmap */
socket = (NativeLlcpConnectionlessSocket) findSocket(nativeHandle);
if (socket != null) {
packet = socket.doReceiveFrom(socket.getLinkMiu());
if (packet != null) {
return packet;
}
return null;
} else {
return null;
}
}
@Override
public int sendTo(int nativeHandle, LlcpPacket packet) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = (NativeLlcpConnectionlessSocket) findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doSendTo(packet.getRemoteSap(), packet.getDataBuffer());
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
};
private final INfcTag mNfcTagService = new INfcTag.Stub() {
@Override
public int close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
/* Remove the device from the hmap */
unregisterObject(nativeHandle);
tag.disconnect();
return ErrorCodes.SUCCESS;
}
/* Restart polling loop for notification */
maybeEnableDiscovery();
return ErrorCodes.ERROR_DISCONNECT;
}
@Override
public int connect(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return ErrorCodes.ERROR_DISCONNECT;
}
// TODO: register the tag as being locked rather than really connect
return ErrorCodes.SUCCESS;
}
@Override
public int reconnect(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
if (tag.reconnect()) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_DISCONNECT;
}
}
return ErrorCodes.ERROR_DISCONNECT;
}
@Override
public int[] getTechList(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
NativeNfcTag tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
return tag.getTechList();
}
return null;
}
@Override
public byte[] getUid(int nativeHandle) throws RemoteException {
NativeNfcTag tag = null;
byte[] uid;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
uid = tag.getUid();
return uid;
}
return null;
}
@Override
public boolean isPresent(int nativeHandle) throws RemoteException {
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return false;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return false;
}
return tag.presenceCheck();
}
@Override
public boolean isNdef(int nativeHandle) throws RemoteException {
NativeNfcTag tag = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return isSuccess;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
int[] ndefInfo = new int[2];
if (tag != null) {
isSuccess = tag.checkNdef(ndefInfo);
}
return isSuccess;
}
@Override
public byte[] transceive(int nativeHandle, byte[] data, boolean raw)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
byte[] response;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
response = tag.transceive(data, raw);
return response;
}
return null;
}
@Override
public NdefMessage ndefRead(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
byte[] buf = tag.read();
if (buf == null)
return null;
/* Create an NdefMessage */
try {
return new NdefMessage(buf);
} catch (FormatException e) {
return null;
}
}
return null;
}
@Override
public int ndefWrite(int nativeHandle, NdefMessage msg) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return ErrorCodes.ERROR_IO;
}
if (tag.write(msg.toByteArray())) {
return ErrorCodes.SUCCESS;
}
else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int getLastError(int nativeHandle) throws RemoteException {
return(mManager.doGetLastError());
}
@Override
public boolean ndefIsWritable(int nativeHandle) throws RemoteException {
throw new UnsupportedOperationException();
}
@Override
public int ndefMakeReadOnly(int nativeHandle) throws RemoteException {
throw new UnsupportedOperationException();
}
@Override
public int formatNdef(int nativeHandle, byte[] key) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return ErrorCodes.ERROR_IO;
}
if (tag.formatNdef(key)) {
return ErrorCodes.SUCCESS;
}
else {
return ErrorCodes.ERROR_IO;
}
}
};
private final IP2pInitiator mP2pInitiatorService = new IP2pInitiator.Stub() {
@Override
public byte[] getGeneralBytes(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.getGeneralBytes();
if (buff == null)
return null;
return buff;
}
return null;
}
@Override
public int getMode(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
return device.getMode();
}
return ErrorCodes.ERROR_INVALID_PARAM;
}
@Override
public byte[] receive(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.doReceive();
if (buff == null)
return null;
return buff;
}
/* Restart polling loop for notification */
maybeEnableDiscovery();
return null;
}
@Override
public boolean send(int nativeHandle, byte[] data) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return isSuccess;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
isSuccess = device.doSend(data);
}
return isSuccess;
}
};
private final IP2pTarget mP2pTargetService = new IP2pTarget.Stub() {
@Override
public int connect(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
if (device.doConnect()) {
return ErrorCodes.SUCCESS;
}
}
return ErrorCodes.ERROR_CONNECT;
}
@Override
public boolean disconnect(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return isSuccess;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
if (isSuccess = device.doDisconnect()) {
/* remove the device from the hmap */
unregisterObject(nativeHandle);
/* Restart polling loop for notification */
maybeEnableDiscovery();
}
}
return isSuccess;
}
@Override
public byte[] getGeneralBytes(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.getGeneralBytes();
if (buff == null)
return null;
return buff;
}
return null;
}
@Override
public int getMode(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
return device.getMode();
}
return ErrorCodes.ERROR_INVALID_PARAM;
}
@Override
public byte[] transceive(int nativeHandle, byte[] data)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.doTransceive(data);
if (buff == null)
return null;
return buff;
}
return null;
}
};
private INfcSecureElement mSecureElementService = new INfcSecureElement.Stub() {
public int openSecureElementConnection() throws RemoteException {
Log.d(TAG, "openSecureElementConnection");
int handle;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return 0;
}
// Check in an open is already pending
if (mOpenSmxPending) {
return 0;
}
handle = mSecureElement.doOpenSecureElementConnection();
if (handle == 0) {
mOpenSmxPending = false;
} else {
mSecureElementHandle = handle;
/* Start timer */
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
/* Update state */
isOpened = true;
isClosed = false;
mOpenSmxPending = true;
}
return handle;
}
public int closeSecureElementConnection(int nativeHandle)
throws RemoteException {
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
// Check if the SE connection is closed
if (isClosed) {
return -1;
}
// Check if the SE connection is opened
if (!isOpened) {
return -1;
}
if (mSecureElement.doDisconnect(nativeHandle)) {
/* Stop timer */
mTimerOpenSmx.cancel();
/* Restart polling loop for notification */
mManager.enableDiscovery(DISCOVERY_MODE_READER);
/* Update state */
isOpened = false;
isClosed = true;
mOpenSmxPending = false;
return ErrorCodes.SUCCESS;
} else {
/* Stop timer */
mTimerOpenSmx.cancel();
/* Restart polling loop for notification */
mManager.enableDiscovery(DISCOVERY_MODE_READER);
/* Update state */
isOpened = false;
isClosed = true;
mOpenSmxPending = false;
return ErrorCodes.ERROR_DISCONNECT;
}
}
public int[] getSecureElementTechList(int nativeHandle)
throws RemoteException {
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
// Check if the SE connection is closed
if (isClosed) {
return null;
}
// Check if the SE connection is opened
if (!isOpened) {
return null;
}
int[] techList = mSecureElement.doGetTechList(nativeHandle);
/* Stop and Restart timer */
mTimerOpenSmx.cancel();
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
return techList;
}
public byte[] getSecureElementUid(int nativeHandle)
throws RemoteException {
byte[] uid;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
// Check if the SE connection is closed
if (isClosed) {
return null;
}
// Check if the SE connection is opened
if (!isOpened) {
return null;
}
uid = mSecureElement.doGetUid(nativeHandle);
/* Stop and Restart timer */
mTimerOpenSmx.cancel();
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
return uid;
}
public byte[] exchangeAPDU(int nativeHandle, byte[] data)
throws RemoteException {
byte[] response;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
// Check if the SE connection is closed
if (isClosed) {
return null;
}
// Check if the SE connection is opened
if (!isOpened) {
return null;
}
response = mSecureElement.doTransceive(nativeHandle, data);
/* Stop and Restart timer */
mTimerOpenSmx.cancel();
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
return response;
}
};
class TimerOpenSecureElement extends TimerTask {
@Override
public void run() {
if (mSecureElementHandle != 0) {
Log.d(TAG, "Open SMX timer expired");
try {
mSecureElementService
.closeSecureElementConnection(mSecureElementHandle);
} catch (RemoteException e) {
}
}
}
}
private boolean _enable(boolean oldEnabledState) {
boolean isSuccess = mManager.initialize();
if (isSuccess) {
applyProperties();
/* Check Secure Element setting */
mNfcSecureElementState = mPrefs.getBoolean(PREF_SECURE_ELEMENT_ON,
SECURE_ELEMENT_ON_DEFAULT);
if (mNfcSecureElementState) {
int secureElementId = mPrefs.getInt(PREF_SECURE_ELEMENT_ID,
SECURE_ELEMENT_ID_DEFAULT);
int[] Se_list = mManager.doGetSecureElementList();
if (Se_list != null) {
for (int i = 0; i < Se_list.length; i++) {
if (Se_list[i] == secureElementId) {
mManager.doSelectSecureElement(Se_list[i]);
mSelectedSeId = Se_list[i];
break;
}
}
}
}
mIsNfcEnabled = true;
/* Start polling loop */
maybeEnableDiscovery();
/* bring up the my tag server */
mMyTagServer.start();
} else {
mIsNfcEnabled = false;
}
updateNfcOnSetting(oldEnabledState);
return isSuccess;
}
/** Enable active tag discovery if screen is on and NFC is enabled */
private synchronized void maybeEnableDiscovery() {
if (mScreenOn && mIsNfcEnabled) {
mManager.enableDiscovery(DISCOVERY_MODE_READER);
}
}
/** Disable active tag discovery if necessary */
private synchronized void maybeDisableDiscovery() {
if (mIsNfcEnabled) {
mManager.disableDiscovery();
}
}
private void applyProperties() {
mManager.doSetProperties(PROPERTY_LLCP_LTO, mPrefs.getInt(PREF_LLCP_LTO, LLCP_LTO_DEFAULT));
mManager.doSetProperties(PROPERTY_LLCP_MIU, mPrefs.getInt(PREF_LLCP_MIU, LLCP_MIU_DEFAULT));
mManager.doSetProperties(PROPERTY_LLCP_WKS, mPrefs.getInt(PREF_LLCP_WKS, LLCP_WKS_DEFAULT));
mManager.doSetProperties(PROPERTY_LLCP_OPT, mPrefs.getInt(PREF_LLCP_OPT, LLCP_OPT_DEFAULT));
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_A,
mPrefs.getBoolean(PREF_DISCOVERY_A, DISCOVERY_A_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_B,
mPrefs.getBoolean(PREF_DISCOVERY_B, DISCOVERY_B_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_F,
mPrefs.getBoolean(PREF_DISCOVERY_F, DISCOVERY_F_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_15693,
mPrefs.getBoolean(PREF_DISCOVERY_15693, DISCOVERY_15693_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_NFCIP,
mPrefs.getBoolean(PREF_DISCOVERY_NFCIP, DISCOVERY_NFCIP_DEFAULT) ? 1 : 0);
}
private void updateNfcOnSetting(boolean oldEnabledState) {
int state;
mPrefsEditor.putBoolean(PREF_NFC_ON, mIsNfcEnabled);
mPrefsEditor.apply();
synchronized(this) {
if (oldEnabledState != mIsNfcEnabled) {
Intent intent = new Intent(NfcAdapter.ACTION_ADAPTER_STATE_CHANGE);
intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
intent.putExtra(NfcAdapter.EXTRA_NEW_BOOLEAN_STATE, mIsNfcEnabled);
mContext.sendBroadcast(intent);
}
if (mIsNfcEnabled) {
Context context = getApplicationContext();
// Set this to null by default. If there isn't a tag on disk
// or if there was an error reading the tag then this will cause
// the status bar icon to be removed.
NdefMessage myTag = null;
FileInputStream input = null;
try {
input = context.openFileInput(MY_TAG_FILE_NAME);
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
byte[] buffer = new byte[4096];
int read = 0;
while ((read = input.read(buffer)) > 0) {
bytes.write(buffer, 0, read);
}
myTag = new NdefMessage(bytes.toByteArray());
} catch (FileNotFoundException e) {
// Ignore.
} catch (IOException e) {
Log.e(TAG, "Could not read mytag file: ", e);
context.deleteFile(MY_TAG_FILE_NAME);
} catch (FormatException e) {
Log.e(TAG, "Invalid NdefMessage for mytag", e);
context.deleteFile(MY_TAG_FILE_NAME);
} finally {
try {
if (input != null) {
input.close();
}
} catch (IOException e) {
// Ignore
}
}
try {
mNfcAdapter.localSet(myTag);
} catch (RemoteException e) {
// Ignore
}
} else {
sendMessage(MSG_HIDE_MY_TAG_ICON, null);
}
}
}
// Reset all internals
private synchronized void reset() {
// TODO: none of these appear to be synchronized but are
// read/written from different threads (notably Binder threads)...
// Clear tables
mObjectMap.clear();
mSocketMap.clear();
mRegisteredSocketList.clear();
// Reset variables
mLlcpLinkState = NfcAdapter.LLCP_LINK_STATE_DEACTIVATED;
mNbSocketCreated = 0;
mIsNfcEnabled = false;
mSelectedSeId = 0;
}
private synchronized Object findObject(int key) {
Object device = null;
device = mObjectMap.get(key);
if (device == null) {
Log.w(TAG, "Handle not found !");
}
return device;
}
synchronized void registerTagObject(NativeNfcTag nativeTag) {
mObjectMap.put(nativeTag.getHandle(), nativeTag);
}
synchronized void unregisterObject(int handle) {
mObjectMap.remove(handle);
}
private synchronized Object findSocket(int key) {
Object socket = null;
socket = mSocketMap.get(key);
return socket;
}
private void RemoveSocket(int key) {
mSocketMap.remove(key);
}
private boolean CheckSocketSap(int sap) {
/* List of sockets registered */
ListIterator<RegisteredSocket> it = mRegisteredSocketList.listIterator();
while (it.hasNext()) {
RegisteredSocket registeredSocket = it.next();
if (sap == registeredSocket.mSap) {
/* SAP already used */
return false;
}
}
return true;
}
private boolean CheckSocketOptions(int miu, int rw, int linearBufferlength) {
if (rw > LLCP_RW_MAX_VALUE || miu < LLCP_MIU_DEFAULT || linearBufferlength < miu) {
return false;
}
return true;
}
private boolean CheckSocketServiceName(String sn) {
/* List of sockets registered */
ListIterator<RegisteredSocket> it = mRegisteredSocketList.listIterator();
while (it.hasNext()) {
RegisteredSocket registeredSocket = it.next();
if (sn.equals(registeredSocket.mServiceName)) {
/* Service Name already used */
return false;
}
}
return true;
}
private void RemoveRegisteredSocket(int nativeHandle) {
/* check if sockets are registered */
ListIterator<RegisteredSocket> it = mRegisteredSocketList.listIterator();
while (it.hasNext()) {
RegisteredSocket registeredSocket = it.next();
if (registeredSocket.mHandle == nativeHandle) {
/* remove the registered socket from the list */
it.remove();
if (DBG) Log.d(TAG, "socket removed");
}
}
}
/*
* RegisteredSocket class to store the creation request of socket until the
* LLCP link in not activated
*/
private class RegisteredSocket {
private final int mType;
private final int mHandle;
private final int mSap;
private int mMiu;
private int mRw;
private String mServiceName;
private int mlinearBufferLength;
RegisteredSocket(int type, int handle, int sap, String sn, int miu, int rw,
int linearBufferLength) {
mType = type;
mHandle = handle;
mSap = sap;
mServiceName = sn;
mRw = rw;
mMiu = miu;
mlinearBufferLength = linearBufferLength;
}
RegisteredSocket(int type, int handle, int sap, int miu, int rw, int linearBufferLength) {
mType = type;
mHandle = handle;
mSap = sap;
mRw = rw;
mMiu = miu;
mlinearBufferLength = linearBufferLength;
}
RegisteredSocket(int type, int handle, int sap) {
mType = type;
mHandle = handle;
mSap = sap;
}
}
/** For use by code in this process */
public LlcpSocket createLlcpSocket(int sap, int miu, int rw, int linearBufferLength) {
try {
int handle = mNfcAdapter.createLlcpSocket(sap, miu, rw, linearBufferLength);
if (ErrorCodes.isError(handle)) {
Log.e(TAG, "unable to create socket: " + ErrorCodes.asString(handle));
return null;
}
return new LlcpSocket(mLlcpSocket, handle);
} catch (RemoteException e) {
// This will never happen since the code is calling into it's own process
throw new IllegalStateException("unable to talk to myself", e);
}
}
/** For use by code in this process */
public LlcpServiceSocket createLlcpServiceSocket(int sap, String sn, int miu, int rw,
int linearBufferLength) {
try {
int handle = mNfcAdapter.createLlcpServiceSocket(sap, sn, miu, rw, linearBufferLength);
if (ErrorCodes.isError(handle)) {
Log.e(TAG, "unable to create socket: " + ErrorCodes.asString(handle));
return null;
}
return new LlcpServiceSocket(mLlcpServerSocketService, mLlcpSocket, handle);
} catch (RemoteException e) {
// This will never happen since the code is calling into it's own process
throw new IllegalStateException("unable to talk to myself", e);
}
}
private void activateLlcpLink() {
/* check if sockets are registered */
ListIterator<RegisteredSocket> it = mRegisteredSocketList.listIterator();
if (DBG) Log.d(TAG, "Nb socket resgistered = " + mRegisteredSocketList.size());
/* Mark the link state */
mLlcpLinkState = NfcAdapter.LLCP_LINK_STATE_ACTIVATED;
while (it.hasNext()) {
RegisteredSocket registeredSocket = it.next();
switch (registeredSocket.mType) {
case LLCP_SERVICE_SOCKET_TYPE:
if (DBG) Log.d(TAG, "Registered Llcp Service Socket");
if (DBG) Log.d(TAG, "SAP: " + registeredSocket.mSap + ", SN: " + registeredSocket.mServiceName);
NativeLlcpServiceSocket serviceSocket;
serviceSocket = mManager.doCreateLlcpServiceSocket(
registeredSocket.mSap, registeredSocket.mServiceName,
registeredSocket.mMiu, registeredSocket.mRw,
registeredSocket.mlinearBufferLength);
if (serviceSocket != null) {
if (DBG) Log.d(TAG, "service socket created");
/* Add the socket into the socket map */
synchronized(NfcService.this) {
mSocketMap.put(registeredSocket.mHandle, serviceSocket);
}
} else {
Log.d(TAG, "FAILED to create service socket");
/* socket creation error - update the socket
* handle counter */
mGeneratedSocketHandle -= 1;
}
// NOTE: don't remove this socket from the registered sockets list.
// If it's removed it won't be created the next time an LLCP
// connection is activated and the server won't be found.
break;
case LLCP_SOCKET_TYPE:
if (DBG) Log.d(TAG, "Registered Llcp Socket");
NativeLlcpSocket clientSocket;
clientSocket = mManager.doCreateLlcpSocket(registeredSocket.mSap,
registeredSocket.mMiu, registeredSocket.mRw,
registeredSocket.mlinearBufferLength);
if (clientSocket != null) {
if (DBG) Log.d(TAG, "socket created");
/* Add the socket into the socket map */
synchronized(NfcService.this) {
mSocketMap.put(registeredSocket.mHandle, clientSocket);
}
} else {
Log.d(TAG, "FAILED to create service socket");
/* socket creation error - update the socket
* handle counter */
mGeneratedSocketHandle -= 1;
}
// This socket has been created, remove it from the registered sockets list.
it.remove();
break;
case LLCP_CONNECTIONLESS_SOCKET_TYPE:
if (DBG) Log.d(TAG, "Registered Llcp Connectionless Socket");
NativeLlcpConnectionlessSocket connectionlessSocket;
connectionlessSocket = mManager.doCreateLlcpConnectionlessSocket(
registeredSocket.mSap);
if (connectionlessSocket != null) {
if (DBG) Log.d(TAG, "connectionless socket created");
/* Add the socket into the socket map */
synchronized(NfcService.this) {
mSocketMap.put(registeredSocket.mHandle, connectionlessSocket);
}
} else {
Log.d(TAG, "FAILED to create service socket");
/* socket creation error - update the socket
* handle counter */
mGeneratedSocketHandle -= 1;
}
// This socket has been created, remove it from the registered sockets list.
it.remove();
break;
}
}
/* Broadcast Intent Link LLCP activated */
Intent LlcpLinkIntent = new Intent();
LlcpLinkIntent.setAction(NfcAdapter.ACTION_LLCP_LINK_STATE_CHANGED);
LlcpLinkIntent.putExtra(NfcAdapter.EXTRA_LLCP_LINK_STATE_CHANGED,
NfcAdapter.LLCP_LINK_STATE_ACTIVATED);
if (DBG) Log.d(TAG, "Broadcasting LLCP activation");
mContext.sendOrderedBroadcast(LlcpLinkIntent, NFC_PERM);
}
public void sendMockNdefTag(NdefMessage msg) {
sendMessage(MSG_MOCK_NDEF, msg);
}
void sendMessage(int what, Object obj) {
Message msg = mHandler.obtainMessage();
msg.what = what;
msg.obj = obj;
mHandler.sendMessage(msg);
}
final class NfcServiceHandler extends Handler {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_MOCK_NDEF: {
NdefMessage ndefMsg = (NdefMessage) msg.obj;
Tag tag = Tag.createMockTag(new byte[] { 0x00 },
new int[] { },
new Bundle[] { });
Log.d(TAG, "mock NDEF tag, starting corresponding activity");
Log.d(TAG, tag.toString());
dispatchTag(tag, new NdefMessage[] { ndefMsg });
break;
}
case MSG_NDEF_TAG:
if (DBG) Log.d(TAG, "Tag detected, notifying applications");
NativeNfcTag nativeTag = (NativeNfcTag) msg.obj;
// TODO: should check on next handle if ndef not available
// on the first. For now, just connect to the first handle
// in the list.
if (nativeTag.connect()) {
int[] ndefinfo = new int[2];
if (nativeTag.checkNdef(ndefinfo)) {
int supportedNdefLength = ndefinfo[0];
int cardState = ndefinfo[1];
boolean generateEmptyIntent = false;
byte[] buff = nativeTag.read();
if (buff != null) {
NdefMessage[] msgNdef = new NdefMessage[1];
try {
msgNdef[0] = new NdefMessage(buff);
nativeTag.addNdefTechnology(msgNdef[0],
supportedNdefLength, cardState);
nativeTag.reconnect();
dispatchNativeTag(nativeTag, msgNdef);
} catch (FormatException e) {
// Create an intent anyway, without NDEF messages
generateEmptyIntent = true;
}
} else {
// Create an intent anyway, without NDEF messages
generateEmptyIntent = true;
}
if (generateEmptyIntent) {
// Create an intent with an empty ndef message array
nativeTag.addNdefTechnology(null, supportedNdefLength, cardState);
if (DBG) Log.d(TAG, "NDEF tag found, but length 0 or invalid format, " +
"starting corresponding activity");
nativeTag.reconnect();
dispatchNativeTag(nativeTag, new NdefMessage[] { });
}
} else {
dispatchNativeTag(nativeTag, null);
}
} else {
Log.w(TAG, "Failed to connect to tag");
nativeTag.disconnect();
}
break;
case MSG_CARD_EMULATION:
if (DBG) Log.d(TAG, "Card Emulation message");
byte[] aid = (byte[]) msg.obj;
/* Send broadcast ordered */
Intent TransactionIntent = new Intent();
TransactionIntent.setAction(NfcAdapter.ACTION_TRANSACTION_DETECTED);
TransactionIntent.putExtra(NfcAdapter.EXTRA_AID, aid);
if (DBG) Log.d(TAG, "Broadcasting Card Emulation event");
mContext.sendOrderedBroadcast(TransactionIntent, NFC_PERM);
break;
case MSG_LLCP_LINK_ACTIVATION:
NativeP2pDevice device = (NativeP2pDevice) msg.obj;
Log.d(TAG, "LLCP Activation message");
if (device.getMode() == NativeP2pDevice.MODE_P2P_TARGET) {
if (DBG) Log.d(TAG, "NativeP2pDevice.MODE_P2P_TARGET");
if (device.doConnect()) {
/* Check Llcp compliancy */
if (mManager.doCheckLlcp()) {
/* Activate Llcp Link */
if (mManager.doActivateLlcp()) {
if (DBG) Log.d(TAG, "Initiator Activate LLCP OK");
activateLlcpLink();
} else {
/* should not happen */
Log.w(TAG, "Initiator Activate LLCP NOK. Disconnect.");
device.doDisconnect();
}
} else {
if (DBG) Log.d(TAG, "Remote Target does not support LLCP. Disconnect.");
device.doDisconnect();
}
} else {
if (DBG) Log.d(TAG, "Cannot connect remote Target. Restart polling loop.");
device.doDisconnect();
}
} else if (device.getMode() == NativeP2pDevice.MODE_P2P_INITIATOR) {
if (DBG) Log.d(TAG, "NativeP2pDevice.MODE_P2P_INITIATOR");
/* Check Llcp compliancy */
if (mManager.doCheckLlcp()) {
/* Activate Llcp Link */
if (mManager.doActivateLlcp()) {
if (DBG) Log.d(TAG, "Target Activate LLCP OK");
activateLlcpLink();
}
} else {
Log.w(TAG, "checkLlcp failed");
}
}
break;
case MSG_LLCP_LINK_DEACTIVATED:
device = (NativeP2pDevice) msg.obj;
Log.d(TAG, "LLCP Link Deactivated message. Restart polling loop.");
if (device.getMode() == NativeP2pDevice.MODE_P2P_TARGET) {
if (DBG) Log.d(TAG, "disconnecting from target");
/* Restart polling loop */
device.doDisconnect();
} else {
if (DBG) Log.d(TAG, "not disconnecting from initiator");
}
/* Mark the link state */
mLlcpLinkState = NfcAdapter.LLCP_LINK_STATE_DEACTIVATED;
/* Broadcast Intent Link LLCP activated */
Intent LlcpLinkIntent = new Intent();
LlcpLinkIntent.setAction(NfcAdapter.ACTION_LLCP_LINK_STATE_CHANGED);
LlcpLinkIntent.putExtra(NfcAdapter.EXTRA_LLCP_LINK_STATE_CHANGED,
NfcAdapter.LLCP_LINK_STATE_DEACTIVATED);
if (DBG) Log.d(TAG, "Broadcasting LLCP deactivation");
mContext.sendOrderedBroadcast(LlcpLinkIntent, NFC_PERM);
break;
case MSG_TARGET_DESELECTED:
/* Broadcast Intent Target Deselected */
if (DBG) Log.d(TAG, "Target Deselected");
Intent TargetDeselectedIntent = new Intent();
TargetDeselectedIntent.setAction(mManager.INTERNAL_TARGET_DESELECTED_ACTION);
if (DBG) Log.d(TAG, "Broadcasting Intent");
mContext.sendOrderedBroadcast(TargetDeselectedIntent, NFC_PERM);
break;
case MSG_SHOW_MY_TAG_ICON: {
StatusBarManager sb = (StatusBarManager) getSystemService(
Context.STATUS_BAR_SERVICE);
sb.setIcon("nfc", R.drawable.stat_sys_nfc, 0);
break;
}
case MSG_HIDE_MY_TAG_ICON: {
StatusBarManager sb = (StatusBarManager) getSystemService(
Context.STATUS_BAR_SERVICE);
sb.removeIcon("nfc");
break;
}
default:
Log.e(TAG, "Unknown message received");
break;
}
}
private Intent buildTagIntent(Tag tag, NdefMessage[] msgs, String action) {
Intent intent = new Intent(action);
intent.putExtra(NfcAdapter.EXTRA_TAG, tag);
intent.putExtra(NfcAdapter.EXTRA_ID, tag.getId());
intent.putExtra(NfcAdapter.EXTRA_NDEF_MESSAGES, msgs);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
return intent;
}
private void dispatchNativeTag(NativeNfcTag nativeTag, NdefMessage[] msgs) {
Tag tag = new Tag(nativeTag.getUid(), nativeTag.getTechList(),
nativeTag.getTechExtras(), nativeTag.getHandle());
if (dispatchTag(tag, msgs)) {
registerTagObject(nativeTag);
} else {
nativeTag.disconnect();
}
}
public byte[] concat(byte[]... arrays) {
int length = 0;
for (byte[] array : arrays) {
length += array.length;
}
byte[] result = new byte[length];
int pos = 0;
for (byte[] array : arrays) {
System.arraycopy(array, 0, result, pos, array.length);
pos += array.length;
}
return result;
}
private Uri parseWellKnownUriRecord(NdefRecord record) {
byte[] payload = record.getPayload();
/*
* payload[0] contains the URI Identifier Code, per the
* NFC Forum "URI Record Type Definition" section 3.2.2.
*
* payload[1]...payload[payload.length - 1] contains the rest of
* the URI.
*/
String prefix = URI_PREFIX_MAP[(payload[0] & 0xff)];
byte[] fullUri = concat(prefix.getBytes(Charsets.UTF_8),
Arrays.copyOfRange(payload, 1, payload.length));
return Uri.parse(new String(fullUri, Charsets.UTF_8));
}
private boolean setTypeOrDataFromNdef(Intent intent, NdefRecord record) {
short tnf = record.getTnf();
byte[] type = record.getType();
switch (tnf) {
case NdefRecord.TNF_MIME_MEDIA: {
intent.setType(new String(type, Charsets.US_ASCII));
return true;
}
case NdefRecord.TNF_ABSOLUTE_URI: {
intent.setData(Uri.parse(new String(type, Charsets.UTF_8)));
return true;
}
case NdefRecord.TNF_WELL_KNOWN: {
if (Arrays.equals(type, NdefRecord.RTD_TEXT)) {
intent.setType("text/plain");
return true;
} else if (Arrays.equals(type, NdefRecord.RTD_SMART_POSTER)) {
// Parse the smart poster looking for the URI
try {
NdefMessage msg = new NdefMessage(record.getPayload());
for (NdefRecord subRecord : msg.getRecords()) {
if (subRecord.getTnf() == NdefRecord.TNF_WELL_KNOWN
&& Arrays.equals(subRecord.getType(), NdefRecord.RTD_URI)) {
intent.setData(parseWellKnownUriRecord(subRecord));
return true;
}
}
} catch (FormatException e) {
return false;
}
} else if (Arrays.equals(type, NdefRecord.RTD_URI)) {
intent.setData(parseWellKnownUriRecord(record));
return true;
}
return false;
}
}
return false;
}
private Uri buildTechListUri(Tag tag) {
int[] techList = tag.getTechnologyList();
Arrays.sort(techList);
Uri.Builder builder = new Uri.Builder();
builder.scheme("vnd.android.nfc").authority("tag");
for (int tech : techList) {
builder.appendPath(Integer.toString(tech));
}
builder.appendPath("");
return builder.build();
}
/** Returns false if no activities were found to dispatch to */
private boolean dispatchTag(Tag tag, NdefMessage[] msgs) {
if (DBG) {
Log.d(TAG, "Dispatching tag");
Log.d(TAG, tag.toString());
}
Intent intent;
if (msgs != null && msgs.length > 0) {
NdefMessage msg = msgs[0];
NdefRecord[] records = msg.getRecords();
if (records.length > 0) {
// Found valid NDEF data, try to dispatch that first
NdefRecord record = records[0];
intent = buildTagIntent(tag, msgs, NfcAdapter.ACTION_NDEF_DISCOVERED);
setTypeOrDataFromNdef(intent, record);
try {
mContext.startActivity(intent);
// If an activity is found then skip further dispatching
return true;
} catch (ActivityNotFoundException e) {
if (DBG) Log.d(TAG, "No activities for NDEF handling of " + intent);
}
}
}
// Try the technology specific dispatch
intent = buildTagIntent(tag, msgs, NfcAdapter.ACTION_TECHNOLOGY_DISCOVERED);
intent.setData(buildTechListUri(tag));
try {
mContext.startActivity(intent);
return true;
} catch (ActivityNotFoundException e) {
if (DBG) Log.w(TAG, "No activities for technology handling of " + intent);
}
// Try the generic intent
intent = buildTagIntent(tag, msgs, NfcAdapter.ACTION_TAG_DISCOVERED);
try {
mContext.startActivity(intent);
return true;
} catch (ActivityNotFoundException e) {
Log.e(TAG, "No tag fallback activity found for " + intent);
return false;
}
}
}
private NfcServiceHandler mHandler = new NfcServiceHandler();
private class EnableDisableDiscoveryTask extends AsyncTask<Boolean, Void, Void> {
@Override
protected Void doInBackground(Boolean... enable) {
if (enable != null && enable.length > 0 && enable[0]) {
synchronized (NfcService.this) {
mScreenOn = true;
maybeEnableDiscovery();
}
} else {
mWakeLock.acquire();
synchronized (NfcService.this) {
mScreenOn = false;
maybeDisableDiscovery();
}
mWakeLock.release();
}
return null;
}
}
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(
NativeNfcManager.INTERNAL_TARGET_DESELECTED_ACTION)) {
if (DBG) Log.d(TAG, "INERNAL_TARGET_DESELECTED_ACTION");
/* Restart polling loop for notification */
maybeEnableDiscovery();
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
// Perform discovery enable in thread to protect against ANR when the
// NFC stack wedges. This is *not* the correct way to fix this issue -
// configuration of the local NFC adapter should be very quick and should
// be safe on the main thread, and the NFC stack should not wedge.
new EnableDisableDiscoveryTask().execute(new Boolean(true));
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
// Perform discovery disable in thread to protect against ANR when the
// NFC stack wedges. This is *not* the correct way to fix this issue -
// configuration of the local NFC adapter should be very quick and should
// be safe on the main thread, and the NFC stack should not wedge.
new EnableDisableDiscoveryTask().execute(new Boolean(false));
}
}
};
}