| /* |
| * Copyright (C) 2024 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.tradefed.suite.checker; |
| |
| import com.android.tradefed.device.DeviceNotAvailableException; |
| import com.android.tradefed.device.ITestDevice; |
| import com.android.tradefed.suite.checker.StatusCheckerResult.CheckStatus; |
| import com.android.tradefed.util.CommandResult; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class FilesystemRootChecker implements ISystemStatusChecker { |
| |
| static final String FIND_ROOT_COMMAND = "find /data/local/tmp/ -user root"; |
| |
| /** {@inheritDoc} */ |
| @Override |
| public StatusCheckerResult preExecutionCheck(ITestDevice device) |
| throws DeviceNotAvailableException { |
| List<String> files = getRootPaths(device); |
| if (!files.isEmpty()) { |
| StatusCheckerResult result = new StatusCheckerResult(CheckStatus.FAILED); |
| result.setErrorMessage( |
| String.format( |
| "This module started with root-owned paths: %s", files.toString())); |
| return result; |
| } |
| return new StatusCheckerResult(CheckStatus.SUCCESS); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public StatusCheckerResult postExecutionCheck(ITestDevice device) |
| throws DeviceNotAvailableException { |
| List<String> files = getRootPaths(device); |
| if (!files.isEmpty()) { |
| StatusCheckerResult result = new StatusCheckerResult(CheckStatus.FAILED); |
| result.setErrorMessage( |
| String.format( |
| "This module ended with root-owned paths; check tests or module setup:" |
| + " %s", |
| files.toString())); |
| return result; |
| } |
| return new StatusCheckerResult(CheckStatus.SUCCESS); |
| } |
| |
| /** Return a list of files and folders owned by root in /data/local/tmp/ */ |
| private static List<String> getRootPaths(ITestDevice device) |
| throws DeviceNotAvailableException { |
| CommandResult rootOwnedPathsResult = device.executeShellV2Command(FIND_ROOT_COMMAND); |
| String rootOwnedPaths = rootOwnedPathsResult.getStdout().trim(); |
| if (rootOwnedPaths.isEmpty()) { |
| // "".split("\n") returns [""] so return empty list instead |
| return Collections.emptyList(); |
| } |
| return Arrays.asList(rootOwnedPaths.split("\n")); |
| } |
| } |