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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.
32 lines
923 B
C++
32 lines
923 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 <AK/NonnullRefPtr.h>
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#include <AK/RefPtr.h>
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#include <Kernel/Credentials.h>
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namespace Kernel {
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ErrorOr<NonnullRefPtr<Credentials>> Credentials::create(UserID uid, GroupID gid, UserID euid, GroupID egid, UserID suid, GroupID sgid, Span<GroupID const> extra_gids)
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{
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auto extra_gids_array = TRY(FixedArray<GroupID>::try_create(extra_gids));
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return adopt_nonnull_ref_or_enomem(new (nothrow) Credentials(uid, gid, euid, egid, suid, sgid, move(extra_gids_array)));
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}
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Credentials::Credentials(UserID uid, GroupID gid, UserID euid, GroupID egid, UserID suid, GroupID sgid, FixedArray<GroupID> extra_gids)
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: m_uid(uid)
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, m_gid(gid)
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, m_euid(euid)
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, m_egid(egid)
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, m_suid(suid)
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, m_sgid(sgid)
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, m_extra_gids(move(extra_gids))
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{
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}
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Credentials::~Credentials() = default;
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}
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