1 // Copyright (C) 2023 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #pragma once 16 17 #include <fstab/fstab.h> 18 19 // If "mount_point" is non-null, set up exactly one overlay. 20 // 21 // If "mount_point" is null, setup any overlays. 22 // 23 // If |want_reboot| is non-null, and a reboot is needed to apply overlays, then 24 // it will be true on return. The caller is responsible for initializing it. 25 bool fs_mgr_overlayfs_setup(const android::fs_mgr::Fstab& fstab, const char* mount_point = nullptr, 26 bool* want_reboot = nullptr, bool just_disabled_verity = true); 27 28 enum class OverlayfsTeardownResult { 29 Ok, 30 Busy, // Indicates that overlays are still in use. 31 Error 32 }; 33 OverlayfsTeardownResult fs_mgr_overlayfs_teardown(const char* mount_point = nullptr, 34 bool* want_reboot = nullptr); 35 36 namespace android { 37 namespace fs_mgr { 38 39 void CleanupOldScratchFiles(); 40 41 std::string GetBootScratchDevice(); 42 43 } // namespace fs_mgr 44 } // namespace android 45