From af0b2d1d86761dd7dc89bb605794093968a0a74f Mon Sep 17 00:00:00 2001
From: Peter Elliott <pelliott@ualberta.ca>
Date: Wed, 24 Jun 2020 14:07:28 -0600
Subject: 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.
---
 Kernel/Devices/PS2MouseDevice.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'Kernel/Devices/PS2MouseDevice.h')

diff --git a/Kernel/Devices/PS2MouseDevice.h b/Kernel/Devices/PS2MouseDevice.h
index 5ed62b52db..cfb2557f85 100644
--- a/Kernel/Devices/PS2MouseDevice.h
+++ b/Kernel/Devices/PS2MouseDevice.h
@@ -30,6 +30,7 @@
 #include <Kernel/Devices/CharacterDevice.h>
 #include <Kernel/Interrupts/IRQHandler.h>
 #include <Kernel/MousePacket.h>
+#include <Kernel/Random.h>
 
 namespace Kernel {
 
@@ -77,6 +78,7 @@ private:
     u8 m_data[4];
     bool m_has_wheel { false };
     bool m_has_five_buttons { false };
+    EntropySource m_entropy_source;
 };
 
 }
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