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c3351d4b9f
Instead of getting credentials from Process::current(), we now require that they be provided as input to the various VFS functions. This ensures that an atomic set of credentials is used throughout an entire VFS operation.
26 lines
819 B
C++
26 lines
819 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/StringView.h>
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#include <Kernel/FileSystem/VirtualFileSystem.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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ErrorOr<FlatPtr> Process::sys$mknod(Userspace<Syscall::SC_mknod_params const*> user_params)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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TRY(require_promise(Pledge::dpath));
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auto params = TRY(copy_typed_from_user(user_params));
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if (!is_superuser() && !is_regular_file(params.mode) && !is_fifo(params.mode) && !is_socket(params.mode))
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return EPERM;
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auto path = TRY(get_syscall_path_argument(params.path));
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TRY(VirtualFileSystem::the().mknod(credentials(), path->view(), params.mode & ~umask(), params.dev, current_directory()));
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return 0;
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}
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}
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