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8289759f1d
This is quite useful for userspace applications that can't cope with the restriction, but it's still useful to impose other non-configurable restrictions by using jails.
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/*
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* Copyright (c) 2022-2023, 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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#pragma once
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#include <AK/AtomicRefCounted.h>
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#include <AK/DistinctNumeric.h>
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#include <AK/Error.h>
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#include <AK/IntrusiveList.h>
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#include <AK/IntrusiveListRelaxedConst.h>
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#include <AK/OwnPtr.h>
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#include <AK/RefPtr.h>
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#include <AK/Try.h>
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#include <AK/Types.h>
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#include <Kernel/KString.h>
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#include <Kernel/Locking/SpinlockProtected.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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class ProcessList;
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AK_TYPEDEF_DISTINCT_ORDERED_ID(u64, JailIndex);
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class Jail : public AtomicRefCounted<Jail> {
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public:
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RefPtr<ProcessList> process_list();
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static RefPtr<Jail> find_by_index(JailIndex);
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static ErrorOr<NonnullRefPtr<Jail>> create(NonnullOwnPtr<KString> name, unsigned flags);
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static ErrorOr<void> for_each_when_process_is_not_jailed(Function<ErrorOr<void>(Jail const&)> callback);
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StringView name() const { return m_name->view(); }
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JailIndex index() const { return m_index; }
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void detach(Badge<Process>);
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SpinlockProtected<size_t, LockRank::None>& attach_count() { return m_attach_count; }
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private:
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Jail(NonnullOwnPtr<KString>, JailIndex, RefPtr<ProcessList>);
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NonnullOwnPtr<KString> m_name;
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JailIndex const m_index;
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IntrusiveListNode<Jail, NonnullRefPtr<Jail>> m_list_node;
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public:
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using List = IntrusiveListRelaxedConst<&Jail::m_list_node>;
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private:
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RefPtr<ProcessList> const m_process_list;
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SpinlockProtected<size_t, LockRank::None> m_attach_count { 0 };
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};
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}
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