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/*
* Copyright (C) 2015 The Android Open Source Project
* Copyright (C) 2019 The LineageOS 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.
*/
#ifndef ANDROID_VOLMGR_PUBLIC_VOLUME_H
#define ANDROID_VOLMGR_PUBLIC_VOLUME_H
#include "VolumeBase.h"
#include <cutils/multiuser.h>
namespace android {
namespace volmgr {
/*
* Shared storage provided by public (vfat) partition.
*
* Knows how to mount itself and then spawn a FUSE daemon to synthesize
* permissions.
*
* This volume is not inherently multi-user aware, so it has two possible
* modes of operation:
* 1. If primary storage for the device, it only binds itself to the
* owner user.
* 2. If secondary storage, it binds itself for all users, but masks
* away the Android directory for secondary users.
*/
class PublicVolume : public VolumeBase {
public:
PublicVolume(dev_t device, const std::string& nickname, const std::string& mntopts = "",
const std::string& fstype = "");
virtual ~PublicVolume();
protected:
status_t doCreate() override;
status_t doDestroy() override;
status_t doMount() override;
status_t doUnmount(bool detach = false) override;
status_t readMetadata();
private:
/* Kernel device representing partition */
dev_t mDevice;
/* Block device path */
std::string mDevPath;
/* Filesystem type */
std::string mFsType;
/* Filesystem UUID */
std::string mFsUuid;
/* Mount options */
std::string mMntOpts;
DISALLOW_COPY_AND_ASSIGN(PublicVolume);
};
} // namespace volmgr
} // namespace android
#endif
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