39fafedc5a
Ueventd can't set properties currently, but this is an artificial limitation, since ueventd communicates to init that it has finished cold boot via a file, and init polls this file instead of returning to the epoll loop, where properties are handled. This change replaces that file with a property and thus frees ueventd to be able to set properties. Bug: 62301678 Test: boot, check that properties are set Change-Id: I985688e9299456efcb2dfeef9b92668991aa9c05
72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
/*
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* Copyright (C) 2010 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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#ifndef _INIT_UTIL_H_
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#define _INIT_UTIL_H_
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <chrono>
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#include <functional>
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#include <ostream>
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#include <string>
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#include <android-base/chrono_utils.h>
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#include <selinux/label.h>
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#include "result.h"
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using android::base::boot_clock;
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using namespace std::chrono_literals;
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namespace android {
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namespace init {
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static const char kColdBootDoneProp[] = "ro.cold_boot_done";
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int CreateSocket(const char* name, int type, bool passcred, mode_t perm, uid_t uid, gid_t gid,
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const char* socketcon);
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Result<std::string> ReadFile(const std::string& path);
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Result<void> WriteFile(const std::string& path, const std::string& content);
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Result<uid_t> DecodeUid(const std::string& name);
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bool mkdir_recursive(const std::string& pathname, mode_t mode);
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int wait_for_file(const char *filename, std::chrono::nanoseconds timeout);
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void import_kernel_cmdline(bool in_qemu,
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const std::function<void(const std::string&, const std::string&, bool)>&);
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bool make_dir(const std::string& path, mode_t mode);
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bool is_dir(const char* pathname);
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bool expand_props(const std::string& src, std::string* dst);
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// Returns the platform's Android DT directory as specified in the kernel cmdline.
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// If the platform does not configure a custom DT path, returns the standard one (based in procfs).
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const std::string& get_android_dt_dir();
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// Reads or compares the content of device tree file under the platform's Android DT directory.
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bool read_android_dt_file(const std::string& sub_path, std::string* dt_content);
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bool is_android_dt_value_expected(const std::string& sub_path, const std::string& expected_content);
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bool IsLegalPropertyName(const std::string& name);
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void SetStdioToDevNull(char** argv);
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void InitKernelLogging(char** argv);
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bool IsRecoveryMode();
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} // namespace init
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} // namespace android
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#endif
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