1 /* 2 * Copyright (C) 2020 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 17 package com.android.settings.development; 18 19 import android.content.Context; 20 import android.debug.IAdbManager; 21 import android.net.ConnectivityManager; 22 import android.net.LinkAddress; 23 import android.net.LinkProperties; 24 import android.net.wifi.WifiManager; 25 import android.os.RemoteException; 26 import android.os.ServiceManager; 27 import android.util.Log; 28 29 import androidx.preference.Preference; 30 import androidx.preference.PreferenceScreen; 31 32 import com.android.settings.R; 33 import com.android.settingslib.core.lifecycle.Lifecycle; 34 import com.android.settingslib.deviceinfo.AbstractConnectivityPreferenceController; 35 36 import java.net.Inet4Address; 37 import java.net.InetAddress; 38 import java.util.Iterator; 39 40 /** 41 * Controller for the ip address preference in the Wireless debugging 42 * fragment. 43 */ 44 public class AdbIpAddressPreferenceController extends AbstractConnectivityPreferenceController { 45 private static final String TAG = "AdbIpAddrPrefCtrl"; 46 47 private static final String[] CONNECTIVITY_INTENTS = { 48 ConnectivityManager.CONNECTIVITY_ACTION, 49 WifiManager.ACTION_LINK_CONFIGURATION_CHANGED, 50 WifiManager.NETWORK_STATE_CHANGED_ACTION, 51 }; 52 53 private static final String PREF_KEY = "adb_ip_addr_pref"; 54 private Preference mAdbIpAddrPref; 55 private int mPort; 56 private final ConnectivityManager mCM; 57 private IAdbManager mAdbManager; 58 AdbIpAddressPreferenceController(Context context, Lifecycle lifecycle)59 public AdbIpAddressPreferenceController(Context context, Lifecycle lifecycle) { 60 super(context, lifecycle); 61 mCM = context.getSystemService(ConnectivityManager.class); 62 mAdbManager = IAdbManager.Stub.asInterface(ServiceManager.getService( 63 Context.ADB_SERVICE)); 64 } 65 66 @Override isAvailable()67 public boolean isAvailable() { 68 return true; 69 } 70 71 @Override getPreferenceKey()72 public String getPreferenceKey() { 73 return PREF_KEY; 74 } 75 76 @Override displayPreference(PreferenceScreen screen)77 public void displayPreference(PreferenceScreen screen) { 78 super.displayPreference(screen); 79 mAdbIpAddrPref = screen.findPreference(PREF_KEY); 80 updateConnectivity(); 81 } 82 83 @Override updateState(Preference preference)84 public void updateState(Preference preference) { 85 super.updateState(preference); 86 updateConnectivity(); 87 } 88 89 @Override getConnectivityIntents()90 protected String[] getConnectivityIntents() { 91 return CONNECTIVITY_INTENTS; 92 } 93 getPort()94 protected int getPort() { 95 try { 96 return mAdbManager.getAdbWirelessPort(); 97 } catch (RemoteException e) { 98 Log.e(TAG, "Unable to get the adbwifi port"); 99 } 100 return 0; 101 } 102 getIpv4Address()103 public String getIpv4Address() { 104 return getDefaultIpAddresses(mCM); 105 } 106 107 @Override updateConnectivity()108 protected void updateConnectivity() { 109 String ipAddress = getDefaultIpAddresses(mCM); 110 if (ipAddress != null) { 111 int port = getPort(); 112 if (port <= 0) { 113 mAdbIpAddrPref.setSummary(R.string.status_unavailable); 114 } else { 115 ipAddress += ":" + port; 116 } 117 mAdbIpAddrPref.setSummary(ipAddress); 118 } else { 119 mAdbIpAddrPref.setSummary(R.string.status_unavailable); 120 } 121 } 122 123 /** 124 * Returns the default link's IP addresses, if any, taking into account IPv4 and IPv6 style 125 * addresses. 126 * @param cm ConnectivityManager 127 * @return the formatted and newline-separated IP addresses, or null if none. 128 */ getDefaultIpAddresses(ConnectivityManager cm)129 private static String getDefaultIpAddresses(ConnectivityManager cm) { 130 LinkProperties prop = cm.getLinkProperties(cm.getActiveNetwork()); 131 return formatIpAddresses(prop); 132 } 133 formatIpAddresses(LinkProperties prop)134 private static String formatIpAddresses(LinkProperties prop) { 135 if (prop == null) { 136 return null; 137 } 138 139 Iterator<LinkAddress> iter = prop.getAllLinkAddresses().iterator(); 140 // If there are no entries, return null 141 if (!iter.hasNext()) { 142 return null; 143 } 144 145 // Concatenate all available addresses, newline separated 146 StringBuilder addresses = new StringBuilder(); 147 while (iter.hasNext()) { 148 InetAddress addr = iter.next().getAddress(); 149 if (addr instanceof Inet4Address) { 150 // adb only supports ipv4 at the moment 151 addresses.append(addr.getHostAddress()); 152 break; 153 } 154 } 155 return addresses.toString(); 156 } 157 } 158