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https://github.com/RGBCube/serenity
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a91589c09b
The ProcFS is an utter mess currently, so let's start move things that are not related to processes-info. To ensure it's done in a sane manner, we start by duplicating all /proc/ global nodes to the /sys/kernel/ directory, then we will move Userland to use the new directory so the old directory nodes can be removed from the /proc directory.
38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
/*
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* Copyright (c) 2022, 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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#include <Kernel/FileSystem/SysFS/Subsystems/Kernel/LoadBase.h>
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#include <Kernel/Process.h>
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#include <Kernel/Sections.h>
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namespace Kernel {
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UNMAP_AFTER_INIT SysFSKernelLoadBase::SysFSKernelLoadBase(SysFSDirectory const& parent_directory)
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: SysFSGlobalInformation(parent_directory)
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{
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}
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UNMAP_AFTER_INIT NonnullLockRefPtr<SysFSKernelLoadBase> SysFSKernelLoadBase::must_create(SysFSDirectory const& parent_directory)
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{
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return adopt_lock_ref_if_nonnull(new (nothrow) SysFSKernelLoadBase(parent_directory)).release_nonnull();
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}
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ErrorOr<void> SysFSKernelLoadBase::try_generate(KBufferBuilder& builder)
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{
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auto current_process_credentials = Process::current().credentials();
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if (!current_process_credentials->is_superuser())
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return EPERM;
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return builder.appendff("{}", kernel_load_base);
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}
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mode_t SysFSKernelLoadBase::permissions() const
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{
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// Note: The kernel load address should not be exposed to non-root users
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// as it will help defeat KASLR.
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return S_IRUSR;
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}
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}
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