You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
2.2 KiB
73 lines
2.2 KiB
/*
|
|
* Copyright (C) 2017 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 <signal.h>
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include <android-base/unique_fd.h>
|
|
|
|
#include "builtins.h"
|
|
#include "result.h"
|
|
#include "system/core/init/subcontext.pb.h"
|
|
|
|
namespace android {
|
|
namespace init {
|
|
|
|
static constexpr const char kInitContext[] = "u:r:init:s0";
|
|
static constexpr const char kVendorContext[] = "u:r:vendor_init:s0";
|
|
static constexpr const char kTestContext[] = "test-test-test";
|
|
|
|
class Subcontext {
|
|
public:
|
|
Subcontext(std::vector<std::string> path_prefixes, std::string context, bool host = false)
|
|
: path_prefixes_(std::move(path_prefixes)), context_(std::move(context)), pid_(0) {
|
|
if (!host) {
|
|
Fork();
|
|
}
|
|
}
|
|
|
|
Result<void> Execute(const std::vector<std::string>& args);
|
|
Result<std::vector<std::string>> ExpandArgs(const std::vector<std::string>& args);
|
|
void Restart();
|
|
bool PathMatchesSubcontext(const std::string& path);
|
|
|
|
const std::string& context() const { return context_; }
|
|
pid_t pid() const { return pid_; }
|
|
|
|
private:
|
|
void Fork();
|
|
Result<SubcontextReply> TransmitMessage(const SubcontextCommand& subcontext_command);
|
|
|
|
std::vector<std::string> path_prefixes_;
|
|
std::string context_;
|
|
pid_t pid_;
|
|
android::base::unique_fd socket_;
|
|
};
|
|
|
|
int SubcontextMain(int argc, char** argv, const BuiltinFunctionMap* function_map);
|
|
void InitializeSubcontext();
|
|
void InitializeHostSubcontext(std::vector<std::string> vendor_prefixes);
|
|
Subcontext* GetSubcontext();
|
|
bool SubcontextChildReap(pid_t pid);
|
|
void SubcontextTerminate();
|
|
|
|
} // namespace init
|
|
} // namespace android
|