| /* |
| * 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. |
| */ |
| |
| #include <stdio.h> |
| |
| #include <string> |
| |
| #include "fs_mgr.h" |
| #include "fs_mgr_priv.h" |
| |
| // Returns "_a" or "_b" based on androidboot.slot_suffix in kernel cmdline, or an empty string |
| // if that parameter does not exist. |
| std::string fs_mgr_get_slot_suffix() { |
| std::string ab_suffix; |
| |
| fs_mgr_get_boot_config("slot_suffix", &ab_suffix); |
| return ab_suffix; |
| } |
| |
| // Updates |fstab| for slot_suffix. Returns true on success, false on error. |
| bool fs_mgr_update_for_slotselect(Fstab* fstab) { |
| std::string ab_suffix; |
| |
| for (auto& entry : *fstab) { |
| if (!entry.fs_mgr_flags.slot_select) { |
| continue; |
| } |
| |
| if (ab_suffix.empty()) { |
| ab_suffix = fs_mgr_get_slot_suffix(); |
| // Return false if failed to get ab_suffix when MF_SLOTSELECT is specified. |
| if (ab_suffix.empty()) return false; |
| } |
| |
| entry.blk_device = entry.blk_device + ab_suffix; |
| entry.logical_partition_name = entry.logical_partition_name + ab_suffix; |
| } |
| return true; |
| } |