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Kernel: Put Process unveil state in a SpinlockProtected container
This makes path resolution safe to perform without holding the big lock.
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parent
24f02bd421
commit
580d89f093
7 changed files with 87 additions and 67 deletions
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@ -466,13 +466,21 @@ public:
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VeilState veil_state() const
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{
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return m_veil_state;
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}
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const UnveilNode& unveiled_paths() const
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{
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return m_unveiled_paths;
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return m_unveil_data.with([&](auto const& unveil_data) { return unveil_data.state; });
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}
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struct UnveilData {
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explicit UnveilData(UnveilNode&& p)
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: paths(move(p))
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{
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}
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VeilState state { VeilState::None };
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UnveilNode paths;
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};
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auto& unveil_data() { return m_unveil_data; }
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auto const& unveil_data() const { return m_unveil_data; }
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bool wait_for_tracer_at_next_execve() const
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{
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return m_wait_for_tracer_at_next_execve;
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@ -805,8 +813,7 @@ private:
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RefPtr<Timer> m_alarm_timer;
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VeilState m_veil_state { VeilState::None };
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UnveilNode m_unveiled_paths;
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SpinlockProtected<UnveilData> m_unveil_data;
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OwnPtr<PerformanceEventBuffer> m_perf_event_buffer;
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