1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <string> 20 21 #include <fstab/fstab.h> 22 23 using Volume = android::fs_mgr::FstabEntry; 24 25 // Load and parse volume data from /etc/recovery.fstab. 26 void load_volume_table(); 27 28 // Return the Volume* record for this mount point (or nullptr). 29 Volume* volume_for_mount_point(const std::string& mount_point); 30 31 // Make sure that the volume 'path' is on is mounted. Returns 0 on 32 // success (volume is mounted). 33 int ensure_path_mounted(const std::string& path); 34 35 // Return true if the block device has a corresponding entry 36 // in fstab 37 bool BlockDevHasFstab(const std::string& path); 38 39 // Similar to ensure_path_mounted, but allows one to specify the mount_point. 40 int ensure_path_mounted_at(const std::string& path, const std::string& mount_point); 41 42 // Make sure that the volume 'path' is on is unmounted. Returns 0 on 43 // success (volume is unmounted); 44 int ensure_path_unmounted(const std::string& path); 45 46 // Reformat the given volume (must be the mount point only, eg 47 // "/cache"), no paths permitted. Attempts to unmount the volume if 48 // it is mounted. 49 int format_volume(const std::string& volume); 50 51 // Reformat the given volume (must be the mount point only, eg 52 // "/cache"), no paths permitted. Attempts to unmount the volume if 53 // it is mounted. 54 // Copies 'directory' to root of the newly formatted volume 55 int format_volume(const std::string& volume, const std::string& directory, 56 std::string_view new_fstype); 57 58 // Ensure that all and only the volumes that packages expect to find 59 // mounted (/tmp and /cache) are mounted. Returns 0 on success. 60 int setup_install_mounts(); 61 62 // Returns true if there is /cache in the volumes. 63 bool HasCache(); 64