Snapshot. This passes the build test, but has not yet been finished or debugged.

Contains:

* Refactor the hardware RNG CPU instruction sources to feed into
the software mixer. This is unfinished. The actual harvesting needs
to be sorted out. Modified by me (see below).

* Remove 'frac' parameter from random_harvest(). This was never
used and adds extra code for no good reason.

* Remove device write entropy harvesting. This provided a weak
attack vector, was not very good at bootstrapping the device. To
follow will be a replacement explicit reseed knob.

* Separate out all the RANDOM_PURE sources into separate harvest
entities. This adds some secuity in the case where more than one
is present.

* Review all the code and fix anything obviously messy or inconsistent.
Address som review concerns while I'm here, like rename the pseudo-rng
to 'dummy'.

Submitted by:	Arthur Mesh <arthurmesh@gmail.com> (the first item)

2 files changed, 2 insertions, 2 deletions

diff --git a/sys/dev/syscons/scmouse.c b/sys/dev/syscons/scmouse.c
index 21e6d08..4dbd1a7 100644
--- a/sys/dev/syscons/scmouse.c
+++ b/sys/dev/syscons/scmouse.c
@@ -666,7 +666,7 @@ sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
 
 	mouse = (mouse_info_t*)data;
 
-	random_harvest(mouse, sizeof(mouse_info_t), 2, 0, RANDOM_MOUSE);
+	random_harvest(mouse, sizeof(mouse_info_t), 2, RANDOM_MOUSE);
 
 	if (cmd == OLD_CONS_MOUSECTL) {
 	    static u_char swapb[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c
index f09973c..b44dd53 100644
--- a/sys/dev/syscons/syscons.c
+++ b/sys/dev/syscons/syscons.c
@@ -3400,7 +3400,7 @@ next_code:
 	sc_touch_scrn_saver();
 
     if (!(flags & SCGETC_CN))
-	random_harvest(&c, sizeof(c), 1, 0, RANDOM_KEYBOARD);
+	random_harvest(&c, sizeof(c), 1, RANDOM_KEYBOARD);
 
     if (scp->kbd_mode != K_XLATE)
 	return KEYCHAR(c);