From a909184e9dd59e1176a5556a64d2ec02014c79ae Mon Sep 17 00:00:00 2001
From: Mark Murray <markm@FreeBSD.org>
Date: Sun, 9 Jul 2000 12:26:38 +0000
Subject: Add entropy-harvesting calls.

/dev/random now has new-and-improved entropy!
---
 sys/dev/syscons/syscons.c  | 4 ++++
 sys/dev/syscons/sysmouse.c | 6 ++++++
 2 files changed, 10 insertions(+)

(limited to 'sys/dev/syscons')

diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c
index aea3c7eac4c9..1c60164d761b 100644
--- a/sys/dev/syscons/syscons.c
+++ b/sys/dev/syscons/syscons.c
@@ -47,6 +47,7 @@
 #include <sys/kernel.h>
 #include <sys/malloc.h>
 #include <sys/cons.h>
+#include <sys/random.h>
 
 #include <machine/clock.h>
 #include <machine/console.h>
@@ -2955,6 +2956,9 @@ next_code:
     if (!(c & RELKEY))
 	sc_touch_scrn_saver();
 
+    /* do the /dev/random device a favour */
+    random_harvest((u_int64_t)c, 1, 0, RANDOM_KEYBOARD);
+
     if (scp->kbd_mode != K_XLATE)
 	return KEYCHAR(c);
 
diff --git a/sys/dev/syscons/sysmouse.c b/sys/dev/syscons/sysmouse.c
index 453215a0af36..5c92b2321407 100644
--- a/sys/dev/syscons/sysmouse.c
+++ b/sys/dev/syscons/sysmouse.c
@@ -32,6 +32,7 @@
 #include <sys/systm.h>
 #include <sys/conf.h>
 #include <sys/proc.h>
+#include <sys/random.h>
 #include <sys/tty.h>
 #include <sys/kernel.h>
 
@@ -333,6 +334,11 @@ sysmouse_event(mouse_info_t *info)
 							       sysmouse_tty);
 	}
 
+	/* do the /dev/random device a favour                        */
+	/* The nasty-looking cast is to force treatment of 8 u_chars */
+	/* in buf as a u_int64_t                                     */
+	random_harvest(*((u_int64_t *)buf), 2, 0, RANDOM_MOUSE);
+
 	return mouse_status.flags;
 }
 
-- 
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