a9665ced57
Mounting /system in Virtual A/B devices may require the creation of the associated snapshot devices. This patch performs all the required initializations prior to attempting the mount of /system. Bug: 139157327 Test: manual /system partition mount on VAB device during OTA Depends-on: I7337bdd38d7016d12d3ee42be1c7893b10e9116d Change-Id: I71a9dfc57e1a1354f1f1edc5d287aca93c0c8924 Signed-off-by: Alessio Balsini <balsini@google.com>
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android-base/logging.h>
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#include <android-base/properties.h>
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#include <libsnapshot/snapshot.h>
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#include "recovery_ui/device.h"
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#include "recovery_ui/ui.h"
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#include "recovery_utils/roots.h"
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using android::snapshot::CreateResult;
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using android::snapshot::SnapshotManager;
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bool FinishPendingSnapshotMerges(Device* device) {
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if (!android::base::GetBoolProperty("ro.virtual_ab.enabled", false)) {
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return true;
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}
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RecoveryUI* ui = device->GetUI();
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auto sm = SnapshotManager::NewForFirstStageMount();
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if (!sm) {
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ui->Print("Could not create SnapshotManager.\n");
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return false;
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}
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auto callback = [&]() -> void {
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double progress;
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sm->GetUpdateState(&progress);
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ui->Print("Waiting for merge to complete: %.2f\n", progress);
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};
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if (!sm->HandleImminentDataWipe(callback)) {
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ui->Print("Unable to check merge status and/or complete update merge.\n");
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return false;
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}
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return true;
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}
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bool CreateSnapshotPartitions() {
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if (!android::base::GetBoolProperty("ro.virtual_ab.enabled", false)) {
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// If the device does not support Virtual A/B, there's no need to create
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// snapshot devices.
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return true;
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}
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auto sm = SnapshotManager::NewForFirstStageMount();
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if (!sm) {
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// SnapshotManager could not be created. The device is still in a
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// consistent state and can continue with the mounting of the existing
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// devices, but cannot initialize snapshot devices.
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LOG(WARNING) << "Could not create SnapshotManager";
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return true;
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}
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auto ret = sm->RecoveryCreateSnapshotDevices();
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if (ret == CreateResult::ERROR) {
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return false;
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}
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return true;
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}
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