1 /* 2 * Copyright (C) 2008 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; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.os.Build; 23 import android.os.Bundle; 24 import android.os.SELinux; 25 import android.os.SystemClock; 26 import android.os.SystemProperties; 27 import android.os.UserHandle; 28 import android.preference.Preference; 29 import android.preference.PreferenceGroup; 30 import android.preference.PreferenceScreen; 31 import android.util.Log; 32 import android.widget.Toast; 33 34 import java.io.BufferedReader; 35 import java.io.FileReader; 36 import java.io.IOException; 37 import java.util.regex.Matcher; 38 import java.util.regex.Pattern; 39 40 public class DeviceInfoSettings extends SettingsPreferenceFragment { 41 42 private static final String LOG_TAG = "DeviceInfoSettings"; 43 44 private static final String FILENAME_PROC_VERSION = "/proc/version"; 45 private static final String FILENAME_MSV = "/sys/board_properties/soc/msv"; 46 47 private static final String KEY_CONTAINER = "container"; 48 private static final String KEY_TEAM = "team"; 49 private static final String KEY_CONTRIBUTORS = "contributors"; 50 private static final String KEY_REGULATORY_INFO = "regulatory_info"; 51 private static final String KEY_TERMS = "terms"; 52 private static final String KEY_LICENSE = "license"; 53 private static final String KEY_COPYRIGHT = "copyright"; 54 private static final String KEY_SYSTEM_UPDATE_SETTINGS = "system_update_settings"; 55 private static final String PROPERTY_URL_SAFETYLEGAL = "ro.url.safetylegal"; 56 private static final String PROPERTY_SELINUX_STATUS = "ro.build.selinux"; 57 private static final String KEY_KERNEL_VERSION = "kernel_version"; 58 private static final String KEY_BUILD_NUMBER = "build_number"; 59 private static final String KEY_DEVICE_MODEL = "device_model"; 60 private static final String KEY_SELINUX_STATUS = "selinux_status"; 61 private static final String KEY_BASEBAND_VERSION = "baseband_version"; 62 private static final String KEY_FIRMWARE_VERSION = "firmware_version"; 63 private static final String KEY_UPDATE_SETTING = "additional_system_update_settings"; 64 private static final String KEY_EQUIPMENT_ID = "fcc_equipment_id"; 65 private static final String PROPERTY_EQUIPMENT_ID = "ro.ril.fccid"; 66 67 static final int TAPS_TO_BE_A_DEVELOPER = 7; 68 69 long[] mHits = new long[3]; 70 int mDevHitCountdown; 71 Toast mDevHitToast; 72 73 @Override onCreate(Bundle icicle)74 public void onCreate(Bundle icicle) { 75 super.onCreate(icicle); 76 77 addPreferencesFromResource(R.xml.device_info_settings); 78 79 setStringSummary(KEY_FIRMWARE_VERSION, Build.VERSION.RELEASE); 80 findPreference(KEY_FIRMWARE_VERSION).setEnabled(true); 81 setValueSummary(KEY_BASEBAND_VERSION, "gsm.version.baseband"); 82 setStringSummary(KEY_DEVICE_MODEL, Build.MODEL + getMsvSuffix()); 83 setValueSummary(KEY_EQUIPMENT_ID, PROPERTY_EQUIPMENT_ID); 84 setStringSummary(KEY_DEVICE_MODEL, Build.MODEL); 85 setStringSummary(KEY_BUILD_NUMBER, Build.DISPLAY); 86 findPreference(KEY_BUILD_NUMBER).setEnabled(true); 87 findPreference(KEY_KERNEL_VERSION).setSummary(getFormattedKernelVersion()); 88 89 if (!SELinux.isSELinuxEnabled()) { 90 String status = getResources().getString(R.string.selinux_status_disabled); 91 setStringSummary(KEY_SELINUX_STATUS, status); 92 } else if (!SELinux.isSELinuxEnforced()) { 93 String status = getResources().getString(R.string.selinux_status_permissive); 94 setStringSummary(KEY_SELINUX_STATUS, status); 95 } 96 97 // Remove selinux information if property is not present 98 removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SELINUX_STATUS, 99 PROPERTY_SELINUX_STATUS); 100 101 // Remove Safety information preference if PROPERTY_URL_SAFETYLEGAL is not set 102 removePreferenceIfPropertyMissing(getPreferenceScreen(), "safetylegal", 103 PROPERTY_URL_SAFETYLEGAL); 104 105 // Remove Equipment id preference if FCC ID is not set by RIL 106 removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_EQUIPMENT_ID, 107 PROPERTY_EQUIPMENT_ID); 108 109 // Remove Baseband version if wifi-only device 110 if (Utils.isWifiOnly(getActivity())) { 111 getPreferenceScreen().removePreference(findPreference(KEY_BASEBAND_VERSION)); 112 } 113 114 /* 115 * Settings is a generic app and should not contain any device-specific 116 * info. 117 */ 118 final Activity act = getActivity(); 119 // These are contained in the "container" preference group 120 PreferenceGroup parentPreference = (PreferenceGroup) findPreference(KEY_CONTAINER); 121 Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference, KEY_TERMS, 122 Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY); 123 Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference, KEY_LICENSE, 124 Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY); 125 Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference, KEY_COPYRIGHT, 126 Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY); 127 Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference, KEY_TEAM, 128 Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY); 129 130 // These are contained by the root preference screen 131 parentPreference = getPreferenceScreen(); 132 if (UserHandle.myUserId() == UserHandle.USER_OWNER) { 133 Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference, 134 KEY_SYSTEM_UPDATE_SETTINGS, 135 Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY); 136 } else { 137 // Remove for secondary users 138 removePreference(KEY_SYSTEM_UPDATE_SETTINGS); 139 } 140 Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference, KEY_CONTRIBUTORS, 141 Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY); 142 143 // Read platform settings for additional system update setting 144 removePreferenceIfBoolFalse(KEY_UPDATE_SETTING, 145 R.bool.config_additional_system_update_setting_enable); 146 147 // Remove regulatory information if not enabled. 148 removePreferenceIfBoolFalse(KEY_REGULATORY_INFO, 149 R.bool.config_show_regulatory_info); 150 } 151 152 @Override onResume()153 public void onResume() { 154 super.onResume(); 155 mDevHitCountdown = getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE, 156 Context.MODE_PRIVATE).getBoolean(DevelopmentSettings.PREF_SHOW, 157 android.os.Build.TYPE.equals("eng")) ? -1 : TAPS_TO_BE_A_DEVELOPER; 158 mDevHitToast = null; 159 } 160 161 @Override onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference)162 public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { 163 if (preference.getKey().equals(KEY_FIRMWARE_VERSION)) { 164 System.arraycopy(mHits, 1, mHits, 0, mHits.length-1); 165 mHits[mHits.length-1] = SystemClock.uptimeMillis(); 166 if (mHits[0] >= (SystemClock.uptimeMillis()-500)) { 167 Intent intent = new Intent(Intent.ACTION_MAIN); 168 intent.setClassName("android", 169 com.android.internal.app.PlatLogoActivity.class.getName()); 170 try { 171 startActivity(intent); 172 } catch (Exception e) { 173 Log.e(LOG_TAG, "Unable to start activity " + intent.toString()); 174 } 175 } 176 } else if (preference.getKey().equals(KEY_BUILD_NUMBER)) { 177 // Don't enable developer options for secondary users. 178 if (UserHandle.myUserId() != UserHandle.USER_OWNER) return true; 179 180 if (mDevHitCountdown > 0) { 181 mDevHitCountdown--; 182 if (mDevHitCountdown == 0) { 183 getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE, 184 Context.MODE_PRIVATE).edit().putBoolean( 185 DevelopmentSettings.PREF_SHOW, true).apply(); 186 if (mDevHitToast != null) { 187 mDevHitToast.cancel(); 188 } 189 mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_on, 190 Toast.LENGTH_LONG); 191 mDevHitToast.show(); 192 } else if (mDevHitCountdown > 0 193 && mDevHitCountdown < (TAPS_TO_BE_A_DEVELOPER-2)) { 194 if (mDevHitToast != null) { 195 mDevHitToast.cancel(); 196 } 197 mDevHitToast = Toast.makeText(getActivity(), getResources().getQuantityString( 198 R.plurals.show_dev_countdown, mDevHitCountdown, mDevHitCountdown), 199 Toast.LENGTH_SHORT); 200 mDevHitToast.show(); 201 } 202 } else if (mDevHitCountdown < 0) { 203 if (mDevHitToast != null) { 204 mDevHitToast.cancel(); 205 } 206 mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_already, 207 Toast.LENGTH_LONG); 208 mDevHitToast.show(); 209 } 210 } 211 return super.onPreferenceTreeClick(preferenceScreen, preference); 212 } 213 removePreferenceIfPropertyMissing(PreferenceGroup preferenceGroup, String preference, String property )214 private void removePreferenceIfPropertyMissing(PreferenceGroup preferenceGroup, 215 String preference, String property ) { 216 if (SystemProperties.get(property).equals("")) { 217 // Property is missing so remove preference from group 218 try { 219 preferenceGroup.removePreference(findPreference(preference)); 220 } catch (RuntimeException e) { 221 Log.d(LOG_TAG, "Property '" + property + "' missing and no '" 222 + preference + "' preference"); 223 } 224 } 225 } 226 removePreferenceIfBoolFalse(String preference, int resId)227 private void removePreferenceIfBoolFalse(String preference, int resId) { 228 if (!getResources().getBoolean(resId)) { 229 Preference pref = findPreference(preference); 230 if (pref != null) { 231 getPreferenceScreen().removePreference(pref); 232 } 233 } 234 } 235 setStringSummary(String preference, String value)236 private void setStringSummary(String preference, String value) { 237 try { 238 findPreference(preference).setSummary(value); 239 } catch (RuntimeException e) { 240 findPreference(preference).setSummary( 241 getResources().getString(R.string.device_info_default)); 242 } 243 } 244 setValueSummary(String preference, String property)245 private void setValueSummary(String preference, String property) { 246 try { 247 findPreference(preference).setSummary( 248 SystemProperties.get(property, 249 getResources().getString(R.string.device_info_default))); 250 } catch (RuntimeException e) { 251 // No recovery 252 } 253 } 254 255 /** 256 * Reads a line from the specified file. 257 * @param filename the file to read from 258 * @return the first line, if any. 259 * @throws IOException if the file couldn't be read 260 */ readLine(String filename)261 private static String readLine(String filename) throws IOException { 262 BufferedReader reader = new BufferedReader(new FileReader(filename), 256); 263 try { 264 return reader.readLine(); 265 } finally { 266 reader.close(); 267 } 268 } 269 getFormattedKernelVersion()270 public static String getFormattedKernelVersion() { 271 try { 272 return formatKernelVersion(readLine(FILENAME_PROC_VERSION)); 273 274 } catch (IOException e) { 275 Log.e(LOG_TAG, 276 "IO Exception when getting kernel version for Device Info screen", 277 e); 278 279 return "Unavailable"; 280 } 281 } 282 formatKernelVersion(String rawKernelVersion)283 public static String formatKernelVersion(String rawKernelVersion) { 284 // Example (see tests for more): 285 // Linux version 3.0.31-g6fb96c9 (android-build@xxx.xxx.xxx.xxx.com) \ 286 // (gcc version 4.6.x-xxx 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT \ 287 // Thu Jun 28 11:02:39 PDT 2012 288 289 final String PROC_VERSION_REGEX = 290 "Linux version (\\S+) " + /* group 1: "3.0.31-g6fb96c9" */ 291 "\\((\\S+?)\\) " + /* group 2: "x@y.com" (kernel builder) */ 292 "(?:\\(gcc.+? \\)) " + /* ignore: GCC version information */ 293 "(#\\d+) " + /* group 3: "#1" */ 294 "(?:.*?)?" + /* ignore: optional SMP, PREEMPT, and any CONFIG_FLAGS */ 295 "((Sun|Mon|Tue|Wed|Thu|Fri|Sat).+)"; /* group 4: "Thu Jun 28 11:02:39 PDT 2012" */ 296 297 Matcher m = Pattern.compile(PROC_VERSION_REGEX).matcher(rawKernelVersion); 298 if (!m.matches()) { 299 Log.e(LOG_TAG, "Regex did not match on /proc/version: " + rawKernelVersion); 300 return "Unavailable"; 301 } else if (m.groupCount() < 4) { 302 Log.e(LOG_TAG, "Regex match on /proc/version only returned " + m.groupCount() 303 + " groups"); 304 return "Unavailable"; 305 } 306 return m.group(1) + "\n" + // 3.0.31-g6fb96c9 307 m.group(2) + " " + m.group(3) + "\n" + // x@y.com #1 308 m.group(4); // Thu Jun 28 11:02:39 PDT 2012 309 } 310 311 /** 312 * Returns " (ENGINEERING)" if the msv file has a zero value, else returns "". 313 * @return a string to append to the model number description. 314 */ getMsvSuffix()315 private String getMsvSuffix() { 316 // Production devices should have a non-zero value. If we can't read it, assume it's a 317 // production device so that we don't accidentally show that it's an ENGINEERING device. 318 try { 319 String msv = readLine(FILENAME_MSV); 320 // Parse as a hex number. If it evaluates to a zero, then it's an engineering build. 321 if (Long.parseLong(msv, 16) == 0) { 322 return " (ENGINEERING)"; 323 } 324 } catch (IOException ioe) { 325 // Fail quietly, as the file may not exist on some devices. 326 } catch (NumberFormatException nfe) { 327 // Fail quietly, returning empty string should be sufficient 328 } 329 return ""; 330 } 331 } 332