M7350v1_en_gpl

base/nfc-extras/Android.mk

@@ -0,0 +1,14 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_MODULE:= com.android.nfc_extras
+
+include $(BUILD_JAVA_LIBRARY)
+
+# put the classes.jar, with full class files instead of classes.dex inside, into the dist directory
+$(call dist-for-goals, droidcore, $(full_classes_jar):com.android.nfc_extras.jar)

base/nfc-extras/com.android.nfc_extras.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+
+<permissions>
+    <library name="com.android.nfc_extras"
+            file="/system/framework/com.android.nfc_extras.jar" />
+</permissions>

base/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java

@@ -0,0 +1,226 @@
+/*
+ * 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.nfc_extras;
+
+import android.annotation.SdkConstant;
+import android.annotation.SdkConstant.SdkConstantType;
+import android.nfc.ApduList;
+import android.nfc.INfcAdapterExtras;
+import android.nfc.NfcAdapter;
+import android.os.RemoteException;
+import android.util.Log;
+
+/**
+ * Provides additional methods on an {@link NfcAdapter} for Card Emulation
+ * and management of {@link NfcExecutionEnvironment}'s.
+ *
+ * There is a 1-1 relationship between an {@link NfcAdapterExtras} object and
+ * a {@link NfcAdapter} object.
+ */
+public final class NfcAdapterExtras {
+    private static final String TAG = "NfcAdapterExtras";
+
+    /**
+     * Broadcast Action: an RF field ON has been detected.
+     *
+     * <p class="note">This is an unreliable signal, and will be removed.
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission
+     * to receive.
+     */
+    public static final String ACTION_RF_FIELD_ON_DETECTED =
+            "com.android.nfc_extras.action.RF_FIELD_ON_DETECTED";
+
+    /**
+     * Broadcast Action: an RF field OFF has been detected.
+     *
+     * <p class="note">This is an unreliable signal, and will be removed.
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission
+     * to receive.
+     */
+    public static final String ACTION_RF_FIELD_OFF_DETECTED =
+            "com.android.nfc_extras.action.RF_FIELD_OFF_DETECTED";
+
+    // protected by NfcAdapterExtras.class, and final after first construction,
+    // except for attemptDeadServiceRecovery() when NFC crashes - we accept a
+    // best effort recovery
+    private static NfcAdapter sAdapter;
+    private static INfcAdapterExtras sService;
+    private static NfcAdapterExtras sSingleton;
+    private static NfcExecutionEnvironment sEmbeddedEe;
+    private static CardEmulationRoute sRouteOff;
+    private static CardEmulationRoute sRouteOnWhenScreenOn;
+
+    /** get service handles */
+    private static void initService() {
+        sService = sAdapter.getNfcAdapterExtrasInterface();
+    }
+
+    /**
+     * Get the {@link NfcAdapterExtras} for the given {@link NfcAdapter}.
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission.
+     *
+     * @param adapter a {@link NfcAdapter}, must not be null
+     * @return the {@link NfcAdapterExtras} object for the given {@link NfcAdapter}
+     */
+    public static NfcAdapterExtras get(NfcAdapter adapter) {
+        synchronized(NfcAdapterExtras.class) {
+            if (sSingleton == null) {
+                try {
+                    sAdapter = adapter;
+                    sRouteOff = new CardEmulationRoute(CardEmulationRoute.ROUTE_OFF, null);
+                    sSingleton = new NfcAdapterExtras();
+                    sEmbeddedEe = new NfcExecutionEnvironment(sSingleton);
+                    sRouteOnWhenScreenOn = new CardEmulationRoute(
+                            CardEmulationRoute.ROUTE_ON_WHEN_SCREEN_ON, sEmbeddedEe);
+                    initService();
+                } finally {
+                    if (sSingleton == null) {
+                        sService = null;
+                        sEmbeddedEe = null;
+                        sRouteOff = null;
+                        sRouteOnWhenScreenOn = null;
+                    }
+                }
+            }
+            return sSingleton;
+        }
+    }
+
+    private NfcAdapterExtras() {}
+
+    /**
+     * Immutable data class that describes a card emulation route.
+     */
+    public final static class CardEmulationRoute {
+        /**
+         * Card Emulation is turned off on this NfcAdapter.
+         * <p>This is the default routing state after boot.
+         */
+        public static final int ROUTE_OFF = 1;
+
+        /**
+         * Card Emulation is routed to {@link #nfcEe} only when the screen is on,
+         * otherwise it is turned off.
+         */
+        public static final int ROUTE_ON_WHEN_SCREEN_ON = 2;
+
+        /**
+         * A route such as {@link #ROUTE_OFF} or {@link #ROUTE_ON_WHEN_SCREEN_ON}.
+         */
+        public final int route;
+
+        /**
+         * The {@link NFcExecutionEnvironment} that is Card Emulation is routed to.
+         * <p>null if {@link #route} is {@link #ROUTE_OFF}, otherwise not null.
+         */
+        public final NfcExecutionEnvironment nfcEe;
+
+        public CardEmulationRoute(int route, NfcExecutionEnvironment nfcEe) {
+            if (route == ROUTE_OFF && nfcEe != null) {
+                throw new IllegalArgumentException("must not specifiy a NFC-EE with ROUTE_OFF");
+            } else if (route != ROUTE_OFF && nfcEe == null) {
+                throw new IllegalArgumentException("must specifiy a NFC-EE for this route");
+            }
+            this.route = route;
+            this.nfcEe = nfcEe;
+        }
+    }
+
+    /**
+     * NFC service dead - attempt best effort recovery
+     */
+    void attemptDeadServiceRecovery(Exception e) {
+        Log.e(TAG, "NFC Adapter Extras dead - attempting to recover");
+        sAdapter.attemptDeadServiceRecovery(e);
+        initService();
+    }
+
+    INfcAdapterExtras getService() {
+        return sService;
+    }
+
+    /**
+     * Get the routing state of this NFC EE.
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission.
+     *
+     * @return
+     */
+    public CardEmulationRoute getCardEmulationRoute() {
+        try {
+            int route = sService.getCardEmulationRoute();
+            return route == CardEmulationRoute.ROUTE_OFF ?
+                    sRouteOff :
+                    sRouteOnWhenScreenOn;
+        } catch (RemoteException e) {
+            attemptDeadServiceRecovery(e);
+            return sRouteOff;
+        }
+    }
+
+    /**
+     * Set the routing state of this NFC EE.
+     *
+     * <p>This routing state is not persisted across reboot.
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission.
+     *
+     * @param route a {@link #CardEmulationRoute}
+     */
+    public void setCardEmulationRoute(CardEmulationRoute route) {
+        try {
+            sService.setCardEmulationRoute(route.route);
+        } catch (RemoteException e) {
+            attemptDeadServiceRecovery(e);
+        }
+    }
+
+    /**
+     * Get the {@link NfcExecutionEnvironment} that is embedded with the
+     * {@link NFcAdapter}.
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission.
+     *
+     * @return a {@link NfcExecutionEnvironment}, or null if there is no embedded NFC-EE
+     */
+    public NfcExecutionEnvironment getEmbeddedExecutionEnvironment() {
+        return sEmbeddedEe;
+    }
+
+    public void registerTearDownApdus(String packageName, ApduList apdus) {
+        try {
+            sService.registerTearDownApdus(packageName, apdus);
+        } catch (RemoteException e) {
+            attemptDeadServiceRecovery(e);
+        }
+    }
+
+    public void unregisterTearDownApdus(String packageName) {
+        try {
+            sService.unregisterTearDownApdus(packageName);
+        } catch (RemoteException e) {
+            attemptDeadServiceRecovery(e);
+        }
+    }
+}

base/nfc-extras/java/com/android/nfc_extras/NfcExecutionEnvironment.java

@@ -0,0 +1,128 @@
+/*
+ * 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.nfc_extras;
+
+import java.io.IOException;
+
+import android.annotation.SdkConstant;
+import android.annotation.SdkConstant.SdkConstantType;
+import android.content.Context;
+import android.nfc.INfcAdapterExtras;
+import android.nfc.NfcAdapter;
+import android.os.Binder;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.os.RemoteException;
+
+public class NfcExecutionEnvironment {
+    private final NfcAdapterExtras mExtras;
+
+    /**
+     * Broadcast Action: An ISO-DEP AID was selected.
+     *
+     * <p>This happens as the result of a 'SELECT AID' command from an
+     * external NFC reader/writer.
+     *
+     * <p>Always contains the extra field {@link #EXTRA_AID}
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission
+     * to receive.
+     */
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_AID_SELECTED =
+        "com.android.nfc_extras.action.AID_SELECTED";
+
+    /**
+     * Mandatory byte array extra field in {@link #ACTION_AID_SELECTED}.
+     *
+     * <p>Contains the AID selected.
+     * @hide
+     */
+    public static final String EXTRA_AID = "com.android.nfc_extras.extra.AID";
+
+    NfcExecutionEnvironment(NfcAdapterExtras extras) {
+        mExtras = extras;
+    }
+
+    /**
+     * Open the NFC Execution Environment on its contact interface.
+     *
+     * <p>Only one process may open the secure element at a time. If it is
+     * already open, an {@link IOException} is thrown.
+     *
+     * <p>All other NFC functionality is disabled while the NFC-EE is open
+     * on its contact interface, so make sure to call {@link #close} once complete.
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission.
+     *
+     * @throws IOException if the NFC-EE is already open, or some other error occurs
+     */
+    public void open() throws IOException {
+        try {
+            Bundle b = mExtras.getService().open(new Binder());
+            throwBundle(b);
+        } catch (RemoteException e) {
+            mExtras.attemptDeadServiceRecovery(e);
+            throw new IOException("NFC Service was dead, try again");
+        }
+    }
+
+    /**
+     * Close the NFC Execution Environment on its contact interface.
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission.
+     *
+     * @throws IOException if the NFC-EE is already open, or some other error occurs
+     */
+    public void close() throws IOException {
+        try {
+            throwBundle(mExtras.getService().close());
+        } catch (RemoteException e) {
+            mExtras.attemptDeadServiceRecovery(e);
+            throw new IOException("NFC Service was dead");
+        }
+    }
+
+    /**
+     * Send raw commands to the NFC-EE and receive the response.
+     *
+     * <p class="note">
+     * Requires the {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} permission.
+     *
+     * @throws IOException if the NFC-EE is not open, or some other error occurs
+     */
+    public byte[] transceive(byte[] in) throws IOException {
+        Bundle b;
+        try {
+            b = mExtras.getService().transceive(in);
+        } catch (RemoteException e) {
+            mExtras.attemptDeadServiceRecovery(e);
+            throw new IOException("NFC Service was dead, need to re-open");
+        }
+        throwBundle(b);
+        return b.getByteArray("out");
+    }
+
+    private static void throwBundle(Bundle b) throws IOException {
+        if (b.getInt("e") == -1) {
+            throw new IOException(b.getString("m"));
+        }
+    }
+}