2aeb1addee
These always should have been in their own files. Test: build Change-Id: I201109b5ee63016e78901bbfd404846d45e1d4e6
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
/*
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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 "service_parser.h"
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#include <android-base/strings.h>
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#include "util.h"
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#if defined(__ANDROID__)
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#include <sys/system_properties.h>
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#include "selinux.h"
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#else
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#include "host_init_stubs.h"
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#endif
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using android::base::StartsWith;
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namespace android {
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namespace init {
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Result<void> ServiceParser::ParseSection(std::vector<std::string>&& args,
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const std::string& filename, int line) {
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if (args.size() < 3) {
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return Error() << "services must have a name and a program";
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}
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const std::string& name = args[1];
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if (!IsValidName(name)) {
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return Error() << "invalid service name '" << name << "'";
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}
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filename_ = filename;
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Subcontext* restart_action_subcontext = nullptr;
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if (subcontexts_) {
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for (auto& subcontext : *subcontexts_) {
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if (StartsWith(filename, subcontext.path_prefix())) {
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restart_action_subcontext = &subcontext;
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break;
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}
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}
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}
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std::vector<std::string> str_args(args.begin() + 2, args.end());
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if (SelinuxGetVendorAndroidVersion() <= __ANDROID_API_P__) {
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if (str_args[0] == "/sbin/watchdogd") {
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str_args[0] = "/system/bin/watchdogd";
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}
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}
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service_ = std::make_unique<Service>(name, restart_action_subcontext, str_args);
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return {};
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}
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Result<void> ServiceParser::ParseLineSection(std::vector<std::string>&& args, int line) {
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return service_ ? service_->ParseLine(std::move(args)) : Result<void>{};
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}
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Result<void> ServiceParser::EndSection() {
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if (service_) {
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Service* old_service = service_list_->FindService(service_->name());
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if (old_service) {
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if (!service_->is_override()) {
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return Error() << "ignored duplicate definition of service '" << service_->name()
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<< "'";
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}
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if (StartsWith(filename_, "/apex/") && !old_service->is_updatable()) {
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return Error() << "cannot update a non-updatable service '" << service_->name()
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<< "' with a config in APEX";
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}
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service_list_->RemoveService(*old_service);
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old_service = nullptr;
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}
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service_list_->AddService(std::move(service_));
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}
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return {};
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}
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bool ServiceParser::IsValidName(const std::string& name) const {
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// Property names can be any length, but may only contain certain characters.
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// Property values can contain any characters, but may only be a certain length.
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// (The latter restriction is needed because `start` and `stop` work by writing
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// the service name to the "ctl.start" and "ctl.stop" properties.)
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return IsLegalPropertyName("init.svc." + name) && name.size() <= PROP_VALUE_MAX;
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}
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} // namespace init
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} // namespace android
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