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Kernel: Harvest randomness from various drivers
Random now gets entropy from the following drivers: - KeyboardDevice - PATAChannel - PS2MouseDevice - E1000NetworkAdapter - RTL8139NetworkAdapter Of these devices, PS2MouseDevice and PATAChannel provide the vast majority of the entropy.
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12 changed files with 71 additions and 7 deletions
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@ -81,6 +81,7 @@ void PS2MouseDevice::handle_irq(const RegisterState&)
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if (backdoor->vmmouse_is_absolute()) {
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IO::in8(I8042_BUFFER);
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auto packet = backdoor->receive_mouse_packet();
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m_entropy_source.add_random_event(packet);
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if (packet.has_value())
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m_queue.enqueue(packet.value());
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return;
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@ -99,6 +100,8 @@ void PS2MouseDevice::handle_irq(const RegisterState&)
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#ifdef PS2MOUSE_DEBUG
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dbg() << "PS2Mouse: " << m_data[1] << ", " << m_data[2] << " " << ((m_data[0] & 1) ? "Left" : "") << " " << ((m_data[0] & 2) ? "Right" : "") << " (buffered: " << m_queue.size() << ")";
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#endif
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m_entropy_source.add_random_event(*(u32*)m_data);
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parse_data_packet();
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};
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