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132 lines
4.7 KiB
132 lines
4.7 KiB
/* |
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* Copyright (C) 2015 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_VOLD_UTILS_H |
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#define ANDROID_VOLD_UTILS_H |
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#include "KeyBuffer.h" |
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#include <utils/Errors.h> |
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#include <cutils/multiuser.h> |
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#include <selinux/selinux.h> |
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#include <vector> |
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#include <string> |
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// DISALLOW_COPY_AND_ASSIGN disallows the copy and operator= functions. It goes in the private: |
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// declarations in a class. |
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#if !defined(DISALLOW_COPY_AND_ASSIGN) |
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#define DISALLOW_COPY_AND_ASSIGN(TypeName) \ |
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TypeName(const TypeName&) = delete; \ |
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void operator=(const TypeName&) = delete |
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#endif |
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struct DIR; |
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namespace android { |
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namespace vold { |
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/* SELinux contexts used depending on the block device type */ |
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extern security_context_t sBlkidContext; |
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extern security_context_t sBlkidUntrustedContext; |
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extern security_context_t sFsckContext; |
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extern security_context_t sFsckUntrustedContext; |
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status_t CreateDeviceNode(const std::string& path, dev_t dev); |
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status_t DestroyDeviceNode(const std::string& path); |
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/* fs_prepare_dir wrapper that creates with SELinux context */ |
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status_t PrepareDir(const std::string& path, mode_t mode, uid_t uid, gid_t gid); |
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/* Really unmounts the path, killing active processes along the way */ |
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status_t ForceUnmount(const std::string& path); |
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/* Kills any processes using given path */ |
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status_t KillProcessesUsingPath(const std::string& path); |
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/* Creates bind mount from source to target */ |
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status_t BindMount(const std::string& source, const std::string& target); |
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/* Reads filesystem metadata from device at path */ |
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status_t ReadMetadata(const std::string& path, std::string& fsType, |
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std::string& fsUuid, std::string& fsLabel); |
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/* Reads filesystem metadata from untrusted device at path */ |
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status_t ReadMetadataUntrusted(const std::string& path, std::string& fsType, |
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std::string& fsUuid, std::string& fsLabel); |
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/* Returns either WEXITSTATUS() status, or a negative errno */ |
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status_t ForkExecvp(const std::vector<std::string>& args); |
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status_t ForkExecvp(const std::vector<std::string>& args, security_context_t context); |
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status_t ForkExecvp(const std::vector<std::string>& args, |
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std::vector<std::string>& output); |
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status_t ForkExecvp(const std::vector<std::string>& args, |
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std::vector<std::string>& output, security_context_t context); |
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pid_t ForkExecvpAsync(const std::vector<std::string>& args); |
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status_t ReadRandomBytes(size_t bytes, std::string& out); |
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status_t ReadRandomBytes(size_t bytes, char* buffer); |
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status_t GenerateRandomUuid(std::string& out); |
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/* Converts hex string to raw bytes, ignoring [ :-] */ |
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status_t HexToStr(const std::string& hex, std::string& str); |
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/* Converts raw bytes to hex string */ |
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status_t StrToHex(const std::string& str, std::string& hex); |
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/* Converts raw key bytes to hex string */ |
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status_t StrToHex(const KeyBuffer& str, KeyBuffer& hex); |
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/* Normalize given hex string into consistent format */ |
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status_t NormalizeHex(const std::string& in, std::string& out); |
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uint64_t GetFreeBytes(const std::string& path); |
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uint64_t GetTreeBytes(const std::string& path); |
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bool IsFilesystemSupported(const std::string& fsType); |
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/* Wipes contents of block device at given path */ |
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status_t WipeBlockDevice(const std::string& path); |
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std::string BuildKeyPath(const std::string& partGuid); |
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std::string BuildDataSystemLegacyPath(userid_t userid); |
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std::string BuildDataSystemCePath(userid_t userid); |
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std::string BuildDataSystemDePath(userid_t userid); |
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std::string BuildDataMiscLegacyPath(userid_t userid); |
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std::string BuildDataMiscCePath(userid_t userid); |
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std::string BuildDataMiscDePath(userid_t userid); |
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std::string BuildDataProfilesDePath(userid_t userid); |
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std::string BuildDataPath(const char* volumeUuid); |
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std::string BuildDataMediaCePath(const char* volumeUuid, userid_t userid); |
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std::string BuildDataUserCePath(const char* volumeUuid, userid_t userid); |
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std::string BuildDataUserDePath(const char* volumeUuid, userid_t userid); |
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dev_t GetDevice(const std::string& path); |
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status_t RestoreconRecursive(const std::string& path); |
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status_t SaneReadLinkAt(int dirfd, const char* path, char* buf, size_t bufsiz); |
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/* Checks if Android is running in QEMU */ |
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bool IsRunningInEmulator(); |
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int write_file_bootprof(const char* content); |
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} // namespace vold |
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} // namespace android |
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#endif
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