src-test2/sys/dev/random/randomdev.h, branch release/5.2.0_cvsFreeBSD source treehttps://cgit-dev.freebsd.org/src-test2/atom?h=release%2F5.2.0_cvs2004-01-10T05:53:29ZThis commit was manufactured by cvs2svn to create tag2004-01-10T05:53:29Zcvs2svncvs2svn@FreeBSD.org2004-01-10T05:53:29Zurn:sha1:58c9ff44c8041f394c663cb9640e9b77fe07bb13
'RELENG_5_2_0_RELEASE'.
This commit was manufactured to restore the state of the 5.2-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.
Overhaul the entropy device:2003-11-17T23:02:21ZMark Murraymarkm@FreeBSD.org2003-11-17T23:02:21Zurn:sha1:0887c8c110da2f060bc422e6942320054bcc755d
o Each source gets its own queue, which is a FIFO, not a ring buffer.
The FIFOs are implemented with the sys/queue.h macros. The separation
is so that a low entropy/high rate source can't swamp the harvester
with low-grade entropy and destroy the reseeds.
o Each FIFO is limited to 256 (set as a macro, so adjustable) events
queueable. Full FIFOs are ignored by the harvester. This is to
prevent memory wastage, and helps to keep the kernel thread CPU
usage within reasonable limits.
o There is no need to break up the event harvesting into ${burst}
sized chunks, so retire that feature.
o Break the device away from its roots with the memory device, and
allow it to get its major number automagically.
Massive lint-inspired cleanup.2002-03-03T19:44:22ZMark Murraymarkm@FreeBSD.org2002-03-03T19:44:22Zurn:sha1:e119960112f35b3ec1179e262cccde05b59a0309
Remove unneeded includes.
Deal with unused function arguments.
Resolve a boatload of signed/unsigned imcompatabilities.
Etc.
Fix a minor buglet/typo here that gcc3 complains about.2001-09-10T01:27:23ZPeter Wemmpeter@FreeBSD.org2001-09-10T01:27:23Zurn:sha1:4b53602153262730892060ec7953b5382e023944Very large makeover of the /dev/random driver.2001-03-10T12:51:55ZMark Murraymarkm@FreeBSD.org2001-03-10T12:51:55Zurn:sha1:02c986ab5491cfc84666b5ce658dd7b3508b6b93
o Separate the kernel stuff from the Yarrow algorithm. Yarrow is now
well contained in one source file and one header.
o Replace the Blowfish-based crypto routines with Rijndael-based ones.
(Rijndael is the new AES algorithm). The huge improvement in
Rijndael's key-agility over Blowfish means that this is an
extremely dramatic improvement in speed, and makes a heck of
a difference in its (lack of) CPU load.
o Clean up the sysctl's. At BDE's prompting, I have gone back to
static sysctls.
o Bug fixes. The streamlining of the crypto stuff enabled me to
find and fix some bugs. DES also found a bug in the reseed routine
which is fixed.
o Change the way reseeds clear "used" entropy. Previously, only the
source(s) that caused a reseed were cleared. Now all sources in the
relevant pool(s) are cleared.
o Code tidy-up. Mostly to make it (nearly) 80-column compliant.