Commit Graph

21 Commits

Author SHA1 Message Date
Conrad Meyer
481572a998 arc4random: Adjust example code to use uniform() API
PR:		236678
Reported by:	Andras Farkas <deepbluemistake AT gmail.com>
2019-03-21 14:45:08 +00:00
Xin LI
c1e80940f3 Update userland arc4random() with OpenBSD's Chacha20 based arc4random().
ObsoleteFiles.inc:

    Remove manual pages for arc4random_addrandom(3) and
    arc4random_stir(3).

  contrib/ntp/lib/isc/random.c:
  contrib/ntp/sntp/libevent/evutil_rand.c:

    Eliminate in-tree usage of arc4random_addrandom().

  crypto/heimdal/lib/roken/rand.c:
  crypto/openssh/config.h:

    Eliminate in-tree usage of arc4random_stir().

  include/stdlib.h:

    Remove arc4random_stir() and arc4random_addrandom() prototypes,
    provide temporary shims for transistion period.

  lib/libc/gen/Makefile.inc:

    Hook arc4random-compat.c to build, add hint for Chacha20 source for
    kernel, and remove arc4random_addrandom(3) and arc4random_stir(3)
    links.

  lib/libc/gen/arc4random.c:

    Adopt OpenBSD arc4random.c,v 1.54 with bare minimum changes, use the
    sys/crypto/chacha20 implementation of keystream.

  lib/libc/gen/Symbol.map:

    Remove arc4random_stir and arc4random_addrandom interfaces.

  lib/libc/gen/arc4random.h:

    Adopt OpenBSD arc4random.h,v 1.4 but provide _ARC4_LOCK of our own.

  lib/libc/gen/arc4random.3:

    Adopt OpenBSD arc4random.3,v 1.35 but keep FreeBSD r114444 and
    r118247.

  lib/libc/gen/arc4random-compat.c:

    Compatibility shims for arc4random_stir and arc4random_addrandom
    functions to preserve ABI.  Log once when called but do nothing
    otherwise.

  lib/libc/gen/getentropy.c:
  lib/libc/include/libc_private.h:

    Fold __arc4_sysctl into getentropy.c (renamed to arnd_sysctl).
    Remove from libc_private.h as a result.

  sys/crypto/chacha20/chacha.c:
  sys/crypto/chacha20/chacha.h:

    Make it possible to use the kernel implementation in libc.

PR:		182610
Reviewed by:	cem, markm
Obtained from:	OpenBSD
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D16760
2018-08-19 17:40:50 +00:00
Ed Schouten
6b99842ada Globally replace u_int*_t from (non-contributed) man pages.
The reasoning behind this, is that if we are consistent in our
documentation about the uint*_t stuff, people will be less tempted to
write new code that uses the non-standard types.

I am not going to bump the man page dates, as these changes can be
considered style nits. The meaning of the man pages is unaffected.

MFC after:	1 month
2012-02-12 18:29:56 +00:00
Andrey A. Chernov
6e4fe40a24 Add arc4random_uniform() function (to avoid "modulo bias")
Obtained from:  OpenBSD
2008-07-22 11:33:49 +00:00
Andrey A. Chernov
bc6847e225 Implement arc4random_buf() function
Obtained from:  OpenBSD
2008-07-21 13:52:06 +00:00
David Schultz
05e1bf3461 The upper end of the range of arc4random(3) is 2**32-1, not 2**31-1. 2003-07-31 06:18:24 +00:00
Ruslan Ermilov
3a5146d9e2 Assorted mdoc(7) fixes.
Approved by:	re (blanket)
2003-05-22 13:02:28 +00:00
Tom Rhodes
a460614661 Use the .Dl macro.
Discussed with:	mdoc(7) officer ru
2003-05-01 20:27:59 +00:00
Tom Rhodes
7b98ad3005 State the fact that the range is twice the traditional RAND_MAX.
Add an EXAMPLES section.

PR:		48493
Submitted by:	Paul Herman <pherman@frenchfries.net> (original version)
2003-05-01 19:09:16 +00:00
Ruslan Ermilov
32eef9aeb1 mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00
Ruslan Ermilov
eb0838029f mdoc(7) police: normalize .Nd. 2001-04-18 15:54:10 +00:00
Jeroen Ruigrok van der Werven
5714e85318 Whitespace only change: trim trailing whitespace. 2000-10-30 13:23:19 +00:00
Alexey Zelkin
25bb73e063 Introduce ".Lb" macro to libc manpages.
More libraries manpages updates following.
2000-04-21 09:42:15 +00:00
Sheldon Hearn
c6ff3a1bf7 Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.
2000-03-02 09:14:21 +00:00
Alexey Zelkin
e1e5fdf6d4 mdoc(7)'fy 1999-10-30 15:12:25 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Nik Clayton
fbc400a67a Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

     .\"    $Id$
     .\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by:            bde
1999-07-12 20:50:10 +00:00
Kris Kennaway
ee3afcaf3b More typos. 1999-05-09 13:46:31 +00:00
Kris Kennaway
80bdfd1362 Typo.
Obtained from:	OpenBSD
1999-05-09 13:41:19 +00:00
Andrey A. Chernov
e9c3c2bc0b Change u_char which require special include to unsigned char 1997-06-14 01:28:59 +00:00
Andrey A. Chernov
83a03b388f Add arc4random() functions from OpenBSD. They are almost same as our
srandomdev(), but can be used inside libraries. random() can't be used
inside libraries because it breaks its possible predictable sequence.
arc4random() is true random as designed, so its usage is library-safe.
Obtained from: OpenBSD
1997-06-14 01:15:41 +00:00