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/*
* Copyright (C) 2019 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 <getopt.h>
#include <stdint.h>
#include <stdlib.h>
#include <iostream>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include "misc_writer/misc_writer.h"
using namespace std::string_literals;
using android::hardware::google::pixel::MiscWriter;
using android::hardware::google::pixel::MiscWriterActions;
static int Usage(std::string_view name) {
std::cerr << name << " usage:\n";
std::cerr << name << " [--override-vendor-space-offset <offset>] --<misc_writer_action>\n";
std::cerr << "Supported misc_writer_action is one of: \n";
std::cerr << " --set-dark-theme Write the dark theme flag\n";
std::cerr << " --clear-dark-theme Clear the dark theme flag\n";
std::cerr << " --set-sota Write the silent OTA flag\n";
std::cerr << " --clear-sota Clear the silent OTA flag\n";
std::cerr << "Writes the given hex string to the specified offset in vendor space in /misc "
"partition.\nDefault offset is used for each action unless "
"--override-vendor-space-offset is specified.\n";
return EXIT_FAILURE;
}
// misc_writer is a vendor tool that writes data to the vendor space in /misc.
int main(int argc, char** argv) {
constexpr struct option OPTIONS[] = {
{ "set-dark-theme", no_argument, nullptr, 0 },
{ "clear-dark-theme", no_argument, nullptr, 0 },
{ "set-sota", no_argument, nullptr, 0 },
{ "clear-sota", no_argument, nullptr, 0 },
{ "override-vendor-space-offset", required_argument, nullptr, 0 },
{ nullptr, 0, nullptr, 0 },
};
std::map<std::string, MiscWriterActions> action_map{
{ "set-dark-theme", MiscWriterActions::kSetDarkThemeFlag },
{ "clear-dark-theme", MiscWriterActions::kClearDarkThemeFlag },
{ "set-sota", MiscWriterActions::kSetSotaFlag },
{ "clear-sota", MiscWriterActions::kClearSotaFlag },
};
std::unique_ptr<MiscWriter> misc_writer;
std::optional<size_t> override_offset;
int arg;
int option_index = 0;
while ((arg = getopt_long(argc, argv, "", OPTIONS, &option_index)) != -1) {
if (arg != 0) {
LOG(ERROR) << "Invalid command argument";
return Usage(argv[0]);
}
auto option_name = OPTIONS[option_index].name;
if (option_name == "override-vendor-space-offset"s) {
LOG(WARNING) << "Overriding the vendor space offset in misc partition to " << optarg;
size_t offset;
if (!android::base::ParseUint(optarg, &offset)) {
LOG(ERROR) << "Failed to parse the offset: " << optarg;
return Usage(argv[0]);
}
override_offset = offset;
} else if (auto iter = action_map.find(option_name); iter != action_map.end()) {
if (misc_writer) {
LOG(ERROR) << "Misc writer action has already been set";
return Usage(argv[0]);
}
misc_writer = std::make_unique<MiscWriter>(iter->second);
} else {
LOG(FATAL) << "Unreachable path, option_name: " << option_name;
}
}
if (!misc_writer) {
LOG(ERROR) << "An action must be specified for misc writer";
return Usage(argv[0]);
}
if (!misc_writer->PerformAction(override_offset)) {
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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