/*
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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 <string>
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#include <android-base/logging.h>
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#include <bootloader_message/bootloader_message.h>
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#include <recovery_ui/device.h>
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#include <recovery_ui/screen_ui.h>
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// Wipes the provisioned flag as part of data wipe.
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static bool WipeProvisionedFlag() {
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// Must be consistent with the one in init.hardware.rc (10-byte `theme-dark`).
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const std::string wipe_str(10, '\x00');
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constexpr size_t kProvisionedFlagOffsetInVendorSpace = 0;
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if (std::string err; !WriteMiscPartitionVendorSpace(
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wipe_str.data(), wipe_str.size(), kProvisionedFlagOffsetInVendorSpace, &err)) {
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LOG(ERROR) << "Failed to write wipe string: " << err;
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return false;
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}
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LOG(INFO) << "Provisioned flag wiped successful";
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return true;
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}
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class TaimenDevice : public Device {
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public:
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TaimenDevice(ScreenRecoveryUI* ui) : Device(ui) {}
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// Hook to wipe user data not stored in /data.
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bool PostWipeData() override {
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// Try to do everything but report a failure if anything wasn't successful.
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bool total_success = true;
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auto ui = GetUI();
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ui->Print("Wiping provisioned flag...\n");
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if (!WipeProvisionedFlag()) {
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total_success = false;
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}
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return total_success;
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}
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};
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Device* make_device() {
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return new TaimenDevice(new ScreenRecoveryUI);
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}
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