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122d7d9533
This patch adds a new object to hold a Process's user credentials: - UID, EUID, SUID - GID, EGID, SGID, extra GIDs Credentials are immutable and child processes initially inherit the Credentials object from their parent. Whenever a process changes one or more of its user/group IDs, a new Credentials object is constructed. Any code that wants to inspect and act on a set of credentials can now do so without worrying about data races.
30 lines
816 B
C++
30 lines
816 B
C++
/*
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* Copyright (c) 2022, 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 <Kernel/FileSystem/InodeMetadata.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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bool InodeMetadata::may_read(Process const& process) const
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{
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auto credentials = process.credentials();
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return may_read(credentials->euid(), credentials->egid(), credentials->extra_gids());
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}
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bool InodeMetadata::may_write(Process const& process) const
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{
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auto credentials = process.credentials();
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return may_write(credentials->euid(), credentials->egid(), credentials->extra_gids());
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}
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bool InodeMetadata::may_execute(Process const& process) const
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{
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auto credentials = process.credentials();
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return may_execute(credentials->euid(), credentials->egid(), credentials->extra_gids());
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}
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}
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