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f86b671de2
Move away from using the group ID/user ID helpers in the process to allow for us to take advantage of the immutable credentials instead.
27 lines
874 B
C++
27 lines
874 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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auto credentials = this->credentials();
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if (!credentials->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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