86f21a2211
In preparation of sdcardfs going away on devices launching with R, conditionally use it. Bug: 146419093 Test: cuttlefish with sdcardfs, cuttlefish without sdcardfs but with FUSE Change-Id: I2c1d4b428dcb43c3fd274dde84d5088984161993
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/*
|
|
* Copyright (C) 2015 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.
|
|
*/
|
|
|
|
#ifndef ANDROID_VOLD_PUBLIC_VOLUME_H
|
|
#define ANDROID_VOLD_PUBLIC_VOLUME_H
|
|
|
|
#include "VolumeBase.h"
|
|
|
|
#include <cutils/multiuser.h>
|
|
|
|
namespace android {
|
|
namespace vold {
|
|
|
|
/*
|
|
* Shared storage provided by public (vfat) partition.
|
|
*
|
|
* Knows how to mount itself and then spawn a sdcardfs daemon to synthesize
|
|
* permissions. AsecVolume and ObbVolume can be stacked above it.
|
|
*
|
|
* 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:
|
|
explicit PublicVolume(dev_t device);
|
|
virtual ~PublicVolume();
|
|
|
|
protected:
|
|
status_t doCreate() override;
|
|
status_t doDestroy() override;
|
|
status_t doMount() override;
|
|
status_t doUnmount() override;
|
|
status_t doFormat(const std::string& fsType) override;
|
|
|
|
status_t readMetadata();
|
|
status_t initAsecStage();
|
|
|
|
private:
|
|
/* Kernel device representing partition */
|
|
dev_t mDevice;
|
|
/* Block device path */
|
|
std::string mDevPath;
|
|
/* Mount point of raw partition */
|
|
std::string mRawPath;
|
|
|
|
std::string mSdcardFsDefault;
|
|
std::string mSdcardFsRead;
|
|
std::string mSdcardFsWrite;
|
|
std::string mSdcardFsFull;
|
|
|
|
/* Whether we mounted FUSE for this volume */
|
|
bool mFuseMounted;
|
|
|
|
/* Whether to use sdcardfs for this volume */
|
|
bool mUseSdcardFs;
|
|
|
|
/* Filesystem type */
|
|
std::string mFsType;
|
|
/* Filesystem UUID */
|
|
std::string mFsUuid;
|
|
/* User-visible filesystem label */
|
|
std::string mFsLabel;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(PublicVolume);
|
|
};
|
|
|
|
} // namespace vold
|
|
} // namespace android
|
|
|
|
#endif
|