platform_bootable_recovery/roots.h
Yifan Hong 4932780606 SYSTEM_ROOT -> get_system_root
Add a get_system_root() function in roots.cpp
which returns / or /system based on fstab.
This factors out the 'if' check from recovery.cpp
and fsck_unshare_blocks.cpp.

Test: boot recovery, mount system
Bug: 118634720
Change-Id: If4947cba3a3f08dbe695fd2b50a9354cd302ee03
2018-11-27 15:57:47 -08:00

60 lines
2.1 KiB
C++

/*
* Copyright (C) 2007 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 RECOVERY_ROOTS_H_
#define RECOVERY_ROOTS_H_
#include <string>
typedef struct fstab_rec Volume;
// Load and parse volume data from /etc/recovery.fstab.
void load_volume_table();
// Return the Volume* record for this mount point (or nullptr).
Volume* volume_for_mount_point(const std::string& mount_point);
// Make sure that the volume 'path' is on is mounted. Returns 0 on
// success (volume is mounted).
int ensure_path_mounted(const char* path);
// Similar to ensure_path_mounted, but allows one to specify the mount_point.
int ensure_path_mounted_at(const char* path, const char* mount_point);
// Make sure that the volume 'path' is on is unmounted. Returns 0 on
// success (volume is unmounted);
int ensure_path_unmounted(const char* path);
// Reformat the given volume (must be the mount point only, eg
// "/cache"), no paths permitted. Attempts to unmount the volume if
// it is mounted.
int format_volume(const char* volume);
// Reformat the given volume (must be the mount point only, eg
// "/cache"), no paths permitted. Attempts to unmount the volume if
// it is mounted.
// Copies 'directory' to root of the newly formatted volume
int format_volume(const char* volume, const char* directory);
// Ensure that all and only the volumes that packages expect to find
// mounted (/tmp and /cache) are mounted. Returns 0 on success.
int setup_install_mounts();
bool logical_partitions_mapped();
std::string get_system_root();
#endif // RECOVERY_ROOTS_H_