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/*
* Copyright (C) 2009 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.
*/
#pragma once
#include <stdint.h>
#include <stdio.h>
#include <memory>
#include <string>
#include <string_view>
#include <ziparchive/zip_archive.h>
#include "edify/expr.h"
#include "edify/updater_interface.h"
#include "otautil/error_code.h"
#include "otautil/sysutil.h"
class Updater : public UpdaterInterface {
public:
explicit Updater(std::unique_ptr<UpdaterRuntimeInterface> run_time)
: runtime_(std::move(run_time)) {}
~Updater() override;
// Memory-maps the OTA package and opens it as a zip file. Also sets up the command pipe and
// UpdaterRuntime.
bool Init(int fd, const std::string_view package_filename, bool is_retry);
// Parses and evaluates the updater-script in the OTA package. Reports the error code if the
// evaluation fails.
bool RunUpdate();
// Writes the message to command pipe, adds a new line in the end.
void WriteToCommandPipe(const std::string_view message, bool flush = false) const override;
// Sends over the message to recovery to print it on the screen.
void UiPrint(const std::string_view message) const override;
std::string FindBlockDeviceName(const std::string_view name) const override;
UpdaterRuntimeInterface* GetRuntime() const override {
return runtime_.get();
}
ZipArchiveHandle GetPackageHandle() const override {
return package_handle_;
}
std::string GetResult() const override {
return result_;
}
uint8_t* GetMappedPackageAddress() const override {
return mapped_package_.addr;
}
private:
friend class UpdaterTestBase;
friend class UpdaterTest;
// Where in the package we expect to find the edify script to execute.
// (Note it's "updateR-script", not the older "update-script".)
static constexpr const char* SCRIPT_NAME = "META-INF/com/google/android/updater-script";
// Reads the entry |name| in the zip archive and put the result in |content|.
bool ReadEntryToString(ZipArchiveHandle za, const std::string& entry_name, std::string* content);
// Parses the error code embedded in state->errmsg; and reports the error code and cause code.
void ParseAndReportErrorCode(State* state);
std::unique_ptr<UpdaterRuntimeInterface> runtime_;
MemMapping mapped_package_;
ZipArchiveHandle package_handle_{ nullptr };
std::string updater_script_;
bool is_retry_{ false };
std::unique_ptr<FILE, decltype(&fclose)> cmd_pipe_{ nullptr, fclose };
std::string result_;
std::vector<std::string> skipped_functions_;
};
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