CVS commit: [tls-earlyentropy] src/sys

["Thor Lancelot Simon" <tls%netbsd.org@localhost>]

Module Name:    src
Committed By:   tls
Date:           Mon Apr  7 02:00:00 UTC 2014

Modified Files:
        src/sys/kern [tls-earlyentropy]: kern_rndpool.c kern_rndq.c
        src/sys/sys [tls-earlyentropy]: rnd.h

Log Message:
Entropy estimation changes:

1) Avoid wraparound problems with delta estimator by making estimation
   framework 64-bit.

2) Adjust rnd_counter to always return a 64-bit value, accordingly.

3) Make delta estimator generic and create two instances: delta-time and
   delta-value.

4) Add LZF estimator -- used mostly to protect us against injection of
   bulk data we think is random but is really constant.

5) Allow value and time estimation/collection to be controlled separately.

6) Expose estimator performance to userspace.


To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.5.2.1 src/sys/kern/kern_rndpool.c
cvs rdiff -u -r1.23 -r1.23.2.1 src/sys/kern/kern_rndq.c
cvs rdiff -u -r1.40 -r1.40.2.1 src/sys/sys/rnd.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.