mirror of
https://github.com/RGBCube/serenity
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aee5f4e4b2
The name for this directory is a bit awkward. Also, the distinction of constant information is not really valuable as I thought it would be, so let's bring that information back into the /sys/kernel directory.
54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
/*
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* Copyright (c) 2023, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/AtomicRefCounted.h>
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#include <AK/Error.h>
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#include <AK/Types.h>
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#include <Kernel/FileSystem/SysFS/Component.h>
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#include <Kernel/Library/UserOrKernelBuffer.h>
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namespace Kernel {
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class SysFSSystemConstantInformation final : public SysFSComponent {
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public:
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enum class NodeName {
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LoadBase,
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CommandLine,
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SystemMode,
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};
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enum class ReadableByJailedProcesses {
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Yes,
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No,
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};
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virtual StringView name() const override;
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static NonnullRefPtr<SysFSSystemConstantInformation> must_create(SysFSDirectory const& parent_directory, NonnullOwnPtr<KBuffer> constant_data_buffer, mode_t mode, ReadableByJailedProcesses readable_by_jailed_processes, NodeName name);
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virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
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private:
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SysFSSystemConstantInformation(SysFSDirectory const& parent_directory, NonnullOwnPtr<KBuffer> constant_data_buffer, mode_t mode, ReadableByJailedProcesses readable_by_jailed_processes, NodeName name)
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: SysFSComponent(parent_directory)
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, m_constant_data_buffer(move(constant_data_buffer))
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, m_permissions(mode)
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, m_readable_by_jailed_processes(readable_by_jailed_processes)
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, m_node_name(name)
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{
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}
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virtual size_t size() const override { return m_constant_data_buffer->size(); }
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virtual mode_t permissions() const override { return m_permissions; }
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NonnullOwnPtr<KBuffer> m_constant_data_buffer;
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mode_t const m_permissions { 0644 };
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ReadableByJailedProcesses const m_readable_by_jailed_processes { ReadableByJailedProcesses::No };
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NodeName const m_node_name { NodeName::LoadBase };
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};
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}
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