ea2912f187
The fuse data provider for adb/sdcard shares common code and structures. This cl creates a FuseDataProvider base class and provides implementations for adb and sdcard. In the follow cls, we can kill the provider_vtab struct; and also add another implementation to parse a block map file and provides data. Test: unit tests pass, sideload a package, apply a package from sdcard Change-Id: If8311666a52a2e3c0fbae0ee9688fa6d01e4ad09
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
/*
|
|
* Copyright (C) 2019 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.
|
|
*/
|
|
|
|
#include "fuse_sdcard_install.h"
|
|
|
|
#include <sys/mount.h>
|
|
#include <unistd.h>
|
|
|
|
#include <functional>
|
|
|
|
#include "fuse_provider.h"
|
|
#include "fuse_sideload.h"
|
|
|
|
bool start_sdcard_fuse(const char* path) {
|
|
FuseFileDataProvider file_data_reader(path, 65536);
|
|
|
|
if (!file_data_reader) {
|
|
return false;
|
|
}
|
|
|
|
provider_vtab vtab;
|
|
vtab.read_block = std::bind(&FuseFileDataProvider::ReadBlockAlignedData, &file_data_reader,
|
|
std::placeholders::_2, std::placeholders::_3, std::placeholders::_1);
|
|
vtab.close = [&file_data_reader]() { file_data_reader.Close(); };
|
|
|
|
// The installation process expects to find the sdcard unmounted. Unmount it with MNT_DETACH so
|
|
// that our open file continues to work but new references see it as unmounted.
|
|
umount2("/sdcard", MNT_DETACH);
|
|
|
|
return run_fuse_sideload(vtab, file_data_reader.file_size(),
|
|
file_data_reader.fuse_block_size()) == 0;
|
|
}
|