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73 lines
2.2 KiB
73 lines
2.2 KiB
4 months ago
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/*
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* Copyright (C) 2017 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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#pragma once
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#include <signal.h>
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#include <string>
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#include <vector>
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#include <android-base/unique_fd.h>
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#include "builtins.h"
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#include "result.h"
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#include "system/core/init/subcontext.pb.h"
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namespace android {
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namespace init {
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static constexpr const char kInitContext[] = "u:r:init:s0";
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static constexpr const char kVendorContext[] = "u:r:vendor_init:s0";
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static constexpr const char kTestContext[] = "test-test-test";
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class Subcontext {
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public:
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Subcontext(std::vector<std::string> path_prefixes, std::string context, bool host = false)
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: path_prefixes_(std::move(path_prefixes)), context_(std::move(context)), pid_(0) {
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if (!host) {
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Fork();
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}
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}
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Result<void> Execute(const std::vector<std::string>& args);
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Result<std::vector<std::string>> ExpandArgs(const std::vector<std::string>& args);
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void Restart();
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bool PathMatchesSubcontext(const std::string& path);
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const std::string& context() const { return context_; }
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pid_t pid() const { return pid_; }
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private:
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void Fork();
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Result<SubcontextReply> TransmitMessage(const SubcontextCommand& subcontext_command);
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std::vector<std::string> path_prefixes_;
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std::string context_;
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pid_t pid_;
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android::base::unique_fd socket_;
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};
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int SubcontextMain(int argc, char** argv, const BuiltinFunctionMap* function_map);
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void InitializeSubcontext();
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void InitializeHostSubcontext(std::vector<std::string> vendor_prefixes);
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Subcontext* GetSubcontext();
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bool SubcontextChildReap(pid_t pid);
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void SubcontextTerminate();
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} // namespace init
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} // namespace android
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