PasspointManager.java revision eaa6ff2e246151fe8f42d7111541225ee0e3f346 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.server.wifi.hotspot2;
18
19import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_ICON_BSSID;
20import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_ICON_DATA;
21import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_ICON_FILE;
22import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_WNM_BSSID;
23import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_WNM_DELAY;
24import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_WNM_ESS;
25import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_WNM_METHOD;
26import static android.net.wifi.WifiManager.EXTRA_PASSPOINT_WNM_URL;
27import static android.net.wifi.WifiManager.PASSPOINT_ICON_RECEIVED_ACTION;
28import static android.net.wifi.WifiManager.PASSPOINT_WNM_FRAME_RECEIVED_ACTION;
29
30import android.content.Context;
31import android.content.Intent;
32import android.os.UserHandle;
33
34import com.android.server.wifi.WifiInjector;
35import com.android.server.wifi.anqp.ANQPElement;
36import com.android.server.wifi.anqp.Constants;
37
38import java.util.Map;
39
40/**
41 * Responsible for managing passpoint networks.
42 */
43public class PasspointManager {
44    private final Context mContext;
45    private final PasspointEventHandler mHandler;
46
47    private class CallbackHandler implements PasspointEventHandler.Callbacks {
48        private final Context mContext;
49        CallbackHandler(Context context) {
50            mContext = context;
51        }
52
53        @Override
54        public void onANQPResponse(long bssid,
55                Map<Constants.ANQPElementType, ANQPElement> anqpElements) {
56            // TO BE IMPLEMENTED.
57        }
58
59        @Override
60        public void onIconResponse(long bssid, String fileName, byte[] data) {
61            Intent intent = new Intent(PASSPOINT_ICON_RECEIVED_ACTION);
62            intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
63            intent.putExtra(EXTRA_PASSPOINT_ICON_BSSID, bssid);
64            intent.putExtra(EXTRA_PASSPOINT_ICON_FILE, fileName);
65            if (data != null) {
66                intent.putExtra(EXTRA_PASSPOINT_ICON_DATA, data);
67            }
68            mContext.sendBroadcastAsUser(intent, UserHandle.ALL);
69        }
70
71        @Override
72        public void onWnmFrameReceived(WnmData event) {
73            // %012x HS20-SUBSCRIPTION-REMEDIATION "%u %s", osu_method, url
74            // %012x HS20-DEAUTH-IMMINENT-NOTICE "%u %u %s", code, reauth_delay, url
75            Intent intent = new Intent(PASSPOINT_WNM_FRAME_RECEIVED_ACTION);
76            intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
77
78            intent.putExtra(EXTRA_PASSPOINT_WNM_BSSID, event.getBssid());
79            intent.putExtra(EXTRA_PASSPOINT_WNM_URL, event.getUrl());
80
81            if (event.isDeauthEvent()) {
82                intent.putExtra(EXTRA_PASSPOINT_WNM_ESS, event.isEss());
83                intent.putExtra(EXTRA_PASSPOINT_WNM_DELAY, event.getDelay());
84            } else {
85                intent.putExtra(EXTRA_PASSPOINT_WNM_METHOD, event.getMethod());
86                // TODO(zqiu): set the passpoint matching status with the respect to the
87                // current connected network (e.g. HomeProvider, RoamingProvider, None,
88                // Declined).
89            }
90            mContext.sendBroadcastAsUser(intent, UserHandle.ALL);
91        }
92    }
93
94    public PasspointManager(Context context, WifiInjector wifiInjector) {
95        mContext = context;
96        mHandler = wifiInjector.makePasspointEventHandler(new CallbackHandler(context));
97    }
98
99    /**
100     * Notify the completion of an ANQP request.
101     * TODO(zqiu): currently the notification is done through WifiMonitor,
102     * will no longer be the case once we switch over to use wificond.
103     */
104    public void notifyANQPDone(long bssid, boolean success) {
105        mHandler.notifyANQPDone(bssid, success);
106    }
107
108    /**
109     * Notify the completion of an icon request.
110     * TODO(zqiu): currently the notification is done through WifiMonitor,
111     * will no longer be the case once we switch over to use wificond.
112     */
113    public void notifyIconDone(long bssid, IconEvent iconEvent) {
114        mHandler.notifyIconDone(bssid, iconEvent);
115    }
116
117    /**
118     * Notify the reception of a Wireless Network Management (WNM) frame.
119     * TODO(zqiu): currently the notification is done through WifiMonitor,
120     * will no longer be the case once we switch over to use wificond.
121     */
122    public void receivedWnmFrame(WnmData data) {
123        mHandler.notifyWnmFrameReceived(data);
124    }
125
126    /**
127     * Request the specified icon file |fileName| from the specified AP |bssid|.
128     * @return true if the request is sent successfully, false otherwise
129     */
130    public boolean queryPasspointIcon(long bssid, String fileName) {
131        return mHandler.requestIcon(bssid, fileName);
132    }
133}
134