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78 lines
2.2 KiB
78 lines
2.2 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_PRIVATE_VOLUME_H |
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#define ANDROID_VOLD_PRIVATE_VOLUME_H |
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#include "VolumeBase.h" |
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#include <cutils/multiuser.h> |
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namespace android { |
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namespace vold { |
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/* |
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* Private storage provided by an encrypted partition. |
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* |
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* Given a raw block device, it knows how to wrap it in dm-crypt and |
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* format as ext4/f2fs. EmulatedVolume can be stacked above it. |
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* |
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* This volume is designed to behave much like the internal /data |
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* partition, both in layout and function. For example, apps and |
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* private app data can be safely stored on this volume because the |
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* keys are tightly tied to this device. |
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*/ |
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class PrivateVolume : public VolumeBase { |
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public: |
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PrivateVolume(dev_t device, const std::string& keyRaw); |
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virtual ~PrivateVolume(); |
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protected: |
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status_t doCreate() override; |
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status_t doDestroy() override; |
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status_t doMount() override; |
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status_t doUnmount() override; |
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status_t doFormat(const std::string& fsType) override; |
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status_t readMetadata(); |
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private: |
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/* Kernel device of raw, encrypted partition */ |
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dev_t mRawDevice; |
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/* Path to raw, encrypted block device */ |
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std::string mRawDevPath; |
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/* Path to decrypted block device */ |
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std::string mDmDevPath; |
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/* Path where decrypted device is mounted */ |
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std::string mPath; |
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/* Encryption key as raw bytes */ |
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std::string mKeyRaw; |
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/* Filesystem type */ |
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std::string mFsType; |
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/* Filesystem UUID */ |
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std::string mFsUuid; |
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/* User-visible filesystem label */ |
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std::string mFsLabel; |
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DISALLOW_COPY_AND_ASSIGN(PrivateVolume); |
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}; |
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} // namespace vold |
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} // namespace android |
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#endif
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