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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 <stdlib.h>
#include <unistd.h>
#include <iostream>
#include <string>
#include <vector>
#include <android-base/properties.h>
using android::base::GetProperty;
using android::base::SetProperty;
using namespace std::literals;
static void ControlService(bool start, const std::string& service) {
if (!android::base::SetProperty(start ? "ctl.start" : "ctl.stop", service)) {
std::cerr << "Unable to " << (start ? "start" : "stop") << " service '" << service
<< "'\nSee dmesg for error reason." << std::endl;
exit(EXIT_FAILURE);
}
}
static void ControlDefaultServices(bool start) {
std::vector<std::string> services = {
"netd",
"surfaceflinger",
"audioserver",
"zygote",
};
// Only start zygote_secondary if not single arch.
std::string zygote_configuration = GetProperty("ro.zygote", "");
if (zygote_configuration != "zygote32" && zygote_configuration != "zygote64") {
services.emplace_back("zygote_secondary");
}
if (start) {
for (const auto& service : services) {
ControlService(true, service);
}
} else {
for (auto it = services.crbegin(); it != services.crend(); ++it) {
ControlService(false, *it);
}
}
}
static int StartStop(int argc, char** argv, bool start) {
if (getuid()) {
std::cerr << "Must be root" << std::endl;
return EXIT_FAILURE;
}
if (argc == 1) {
ControlDefaultServices(start);
}
if (argc == 2 && argv[1] == "--help"s) {
std::cout << "usage: " << (start ? "start" : "stop")
<< " [SERVICE...]\n"
"\n"
<< (start ? "Starts" : "Stops")
<< " the given system service, or netd/surfaceflinger/zygotes." << std::endl;
return EXIT_SUCCESS;
}
for (int i = 1; i < argc; ++i) {
ControlService(start, argv[i]);
}
return EXIT_SUCCESS;
}
extern "C" int start_main(int argc, char** argv) {
return StartStop(argc, argv, true);
}
extern "C" int stop_main(int argc, char** argv) {
return StartStop(argc, argv, false);
}
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