1 /* 2 * Copyright (C) 2017 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 package com.android.settings.deviceinfo; 17 18 import android.content.Context; 19 import android.os.SELinux; 20 import android.os.SystemProperties; 21 import android.support.v7.preference.Preference; 22 import android.support.v7.preference.PreferenceScreen; 23 import android.text.TextUtils; 24 25 import com.android.settings.R; 26 import com.android.settings.core.PreferenceController; 27 28 public class SELinuxStatusPreferenceController extends PreferenceController { 29 30 private static final String PROPERTY_SELINUX_STATUS = "ro.build.selinux"; 31 private static final String KEY_SELINUX_STATUS = "selinux_status"; 32 SELinuxStatusPreferenceController(Context context)33 public SELinuxStatusPreferenceController(Context context) { 34 super(context); 35 } 36 37 @Override isAvailable()38 public boolean isAvailable() { 39 return !TextUtils.isEmpty(SystemProperties.get(PROPERTY_SELINUX_STATUS)); 40 } 41 42 @Override getPreferenceKey()43 public String getPreferenceKey() { 44 return KEY_SELINUX_STATUS; 45 } 46 47 @Override displayPreference(PreferenceScreen screen)48 public void displayPreference(PreferenceScreen screen) { 49 super.displayPreference(screen); 50 final Preference pref = screen.findPreference(KEY_SELINUX_STATUS); 51 if (pref == null) { 52 return; 53 } 54 if (!SELinux.isSELinuxEnabled()) { 55 String status = mContext.getResources().getString(R.string.selinux_status_disabled); 56 pref.setSummary(status); 57 } else if (!SELinux.isSELinuxEnforced()) { 58 String status = mContext.getResources().getString(R.string.selinux_status_permissive); 59 pref.setSummary(status); 60 } 61 } 62 } 63 64