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Adding upstream version 1.9.14.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-02-05 13:10:21 +01:00
parent ddf4b25f8f
commit 49fcf7364a
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
88 changed files with 62468 additions and 0 deletions
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.github/workflows/ci.yaml vendored Normal file
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name: Continuous Integration
on: [push, pull_request]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: reconfigure
run: autoreconf -fi
- name: configure
run: ./configure --prefix="/usr"
- name: make
run: make
- name: make check
run: make check
- name: make install
run: sudo make install

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Contact Information:
~~~~~~~~~~~~~~~~~~~~
Gary Wuertz (gary_at_issiweb_com)
http://www.issihosts.com/haveged

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COPYING Normal file
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The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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v1.9.14 (Jan 01, 2021)
* made enttest configurable
* havegecmd.c - new command added to close the communication socket [Werner Fink]
v1.9.13 (Jun 28, 2020)
* added support for --version [Jirka Hladky]
* updated systemd service file [Jirka Hladky]
v1.9.12 (Jun 18, 2020)
* fix a memory leak in havege_destroy [Anakin Zhang]
v1.9.11 (Jun 11, 2020)
* updated version reported by program [Jirka Hladky]
v1.9.10 (Jun 11, 2020)
* fix ordering cycle with private tmp [Christian Hesse]
v1.9.9 (Jun 9, 2020)
* Updated systemd service file [nicoo]
* Bump soname [nicoo]
* Fix crash on shutdown in threaded mode [Sergei Trofimovich]
* Fix compilation with --enable-threads [Lars Wendler]
v1.9.8 (Sep 30, 2019)
* Fix for Unresolved symbol error_exit in libhavege #20 by pld-gitsync [Jirka Hladky]
* order after systemd-tmpfiles-setup-dev.service (origin/pr/21) [Christian Hesse]
* use systemd security features [Christian Hesse]
* do not run in container [Christian Hesse]
* do not use carriage return in line break [Christian Hesse]
* Fixed invalid UTF-8 codes in ChangeLog [Jirka Hladky]
v1.9.5 (Aug 20, 2019)
* Added test for /dev/random symlink [Jirka Hladky]
* Update to automake 1.16 [Jirka Hladky]
* Fix segv at start [Andrew]
* Fixed built issue on Cygwin [jbaker6953]
* Fix segfault on arm machines (origin/pr/7) [Natanael Copa]
* init.d/Makefile.am - add missing dependency [Jackie Huang]
* service.redhat - update PIDFile [Pierre-Jean Texier]
* Fix type mismatch in get_poolsize [Andreas Schwab]
* Fixup upstream changelog [Nicolas Braud-Santoni]
* Remove support for CPUID on ia64 (origin/pr/19) [Jeremy Bobbio]
* Output some progress during CUSUM and RANDOM EXCURSION test [Sven Hartge]
* Diagnostics capture mode now works correctly [Ethan Rahn]
v1.9.4 (Aug 11, 2018)
* Avoid misleading message if cmd socket is in use
v1.9.3 (Aug 10, 2018)
* Implemented a command mode and use it for chroot - contributed Dr. Werner Fink
v1.9.2 (Nov 16, 2017)
* Add cross compile fixes contributed by Robert Schwebel
* Limit watermark max to less than pool size to avoid 100% cpu condition
* Add service.suse init script contributed by Tomas Chvatal
v1.9.1 (Feb 11, 2014)
* Documentation and sample file touch-up for v1.9.
v1.9 (Feb 10, 2014)
* Fix dead man limit in test procedure B. Fix broken AIS retry logic.
* Correct online test defaults
* Improve diagnostic display of test results, output summary, testing retries
* Add test/output summary to all abnormal app terminations
* Add required <stddef.h> include to havege.h. Add quick version check for lib users.
* Improve diagnostic build for testing online tests. Fix broken inject features.
* Rework major portions of havegetest,c for better performance with -fpic
* Correct test procedure B to match independent clean room implementation of reference
* Tweak configure.ac for arm build, make --disable-clock_gettime consistent
* Major edit of man pages, haveged.8 and libhavege.3
* Many other documentation changes: havege.h, README, etc...
v1.8 (Jan 02, 2014)
* Fix return code for signalled termination.
* Update init.d/service.fedora - new return code + simple, not forking
* Add --enable_unitdir as DESTDIR for systemd install
v1.7c (Jun 08, 2013)
* Fix alignment fault on mips in havegetest.c, procedure B.
v1.7b (Jun 06, 2013)
* Fix alignment fault on sparc in havegetest.c, procedure A, test5XOR().
* Fix build ppc detection in configure.ac
v1.7a (Feb 13, 2013)
* Fix parallel build (LDADD fix + VPATH fixes to test programs)
* Fix check target for automake v1.13 and previous (use check-local)
* Add option to suppress tuning code build
* Improve sample spec file for library
v1.7 (Jan 15, 2013)
* Add havege_status_dump() as basis for haveged diagnostics
* Provide sample spec to build haveged and haveged-devel
* Add contrib/build to provide build support
* Modify build to use libtool
* Rename base types to alias stdint.h types to allow 'fixes' if necessary
* Rename all public functions to follow havege_* naming convention
* Sanitize havege.h to be include file for devel package
* Add destroy() to havege for library use.
* Move all remaining static vars to allocated memory.
* Rework include file structure to eliminate include sequence errors.
* Fix (rare) segfault in test0 caused by 1.6 alignment fix
v1.6a (Dec 18, 2012)
* Fix typo in configure.ac
v1.6 (Dec 15, 2012)
* Correct makefile encoding and defaults description
* Make clock_gettime a build option and correct dependencies when used.
* Fix alignment fault on arm64 in procedure A test0.
v1.5 (Aug 12, 2012)
* Add online tests based on AIS-31 controlled by --enable-olt build option
* Add -o option to specify online tests to perform
* Add -p option to specify the pid location.
* Fix -F option to not take argument - i.e. now a switch
* Factor diagnostic methods for capture and inject for better performance
* Fix install target, move to bin and eliminate script if not daemon, now use sysv and systemd templates
v1.4 (Feb 07, 2012)
* Add s390 architecture. Thanks to Dan Horak and Jiri Hladky
* Add generic architecture with clock_gettime() timer.
* Rewrite collection loop to support multiple instances and new diagnostics
* Rewrite tuning mechanism to add virtual file system mining and correct cpuid bugs
* Add prototype multi-thread collection option
* Reduce collection buffer size to .5MB
* Improve/correct build and install
* Add new invocation options to support new features.
v1.3 (Oct 23, 2011)
* Integrate contributions by Jirka Hladky to fine tune collection implementation.
* Add non-daemon interface with option to send continuous stream of output to stdout.
v1.2 (June 26, 2011))
* Address compiler issues by using compiler intrinsics.
* Fix cpuid pic issues once again.
v1.01 (Jan 04,2011)
* Add detached option for those who use a supervising daemon
* Build cleanup for non-cpuid environments
v1.0 (Nov 28,2010)
* Fix gcc 4.5 optimization of HARDCLOCK
* Add contrib section
v0.9 (Sep 01, 2009)
* Refine collection for gcc 4.4 on Intel i7 (gentoo)
* Update auto tune to Intel latest cpuid spec
* Add check for cpuid instruction on i386
* Add man(8) page
* Cleanup check target to build with -Wall
v0.8 (Jul 30, 2009)
* Correct pool size related calculations.
v0.7 (May 1, 2009)
* More package contents confusion.
v0.6 (Apr 29, 2009)
* Correct mix up in package contents
v0.5 (Apr 28, 2009)
* Migrated project to GNU build
v04 (Apr 26, 2009)
* Fix documentation typos!
v03 (Apr 24, 2009)
* Reworked build/test for more general install.
* Integrate init script changes from A Bartlett
v02 (Jan 19, 2009)
* Reworked daemon with run-time loop tuning.
* Submitted to freshmeat
v (Jan 10, 2009)
* Original daemon based on libhavege.

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Installation Instructions
*************************
Copyright (C) 1994-1996, 1999-2002, 2004-2016 Free Software
Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. This file is offered as-is,
without warranty of any kind.
Basic Installation
==================
Briefly, the shell command './configure && make && make install'
should configure, build, and install this package. The following
more-detailed instructions are generic; see the 'README' file for
instructions specific to this package. Some packages provide this
'INSTALL' file but do not implement all of the features documented
below. The lack of an optional feature in a given package is not
necessarily a bug. More recommendations for GNU packages can be found
in *note Makefile Conventions: (standards)Makefile Conventions.
The 'configure' shell script attempts to guess correct values for
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It may also create one or more '.h' files containing system-dependent
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It can also use an optional file (typically called 'config.cache' and
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If you need to do unusual things to compile the package, please try
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be considered for the next release. If you are using the cache, and at
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may remove or edit it.
The file 'configure.ac' (or 'configure.in') is used to create
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you want to change it or regenerate 'configure' using a newer version of
'autoconf'.
The simplest way to compile this package is:
1. 'cd' to the directory containing the package's source code and type
'./configure' to configure the package for your system.
Running 'configure' might take a while. While running, it prints
some messages telling which features it is checking for.
2. Type 'make' to compile the package.
3. Optionally, type 'make check' to run any self-tests that come with
the package, generally using the just-built uninstalled binaries.
4. Type 'make install' to install the programs and any data files and
documentation. When installing into a prefix owned by root, it is
recommended that the package be configured and built as a regular
user, and only the 'make install' phase executed with root
privileges.
5. Optionally, type 'make installcheck' to repeat any self-tests, but
this time using the binaries in their final installed location.
This target does not install anything. Running this target as a
regular user, particularly if the prior 'make install' required
root privileges, verifies that the installation completed
correctly.
6. You can remove the program binaries and object files from the
source code directory by typing 'make clean'. To also remove the
files that 'configure' created (so you can compile the package for
a different kind of computer), type 'make distclean'. There is
also a 'make maintainer-clean' target, but that is intended mainly
for the package's developers. If you use it, you may have to get
all sorts of other programs in order to regenerate files that came
with the distribution.
7. Often, you can also type 'make uninstall' to remove the installed
files again. In practice, not all packages have tested that
uninstallation works correctly, even though it is required by the
GNU Coding Standards.
8. Some packages, particularly those that use Automake, provide 'make
distcheck', which can by used by developers to test that all other
targets like 'make install' and 'make uninstall' work correctly.
This target is generally not run by end users.
Compilers and Options
=====================
Some systems require unusual options for compilation or linking that
the 'configure' script does not know about. Run './configure --help'
for details on some of the pertinent environment variables.
You can give 'configure' initial values for configuration parameters
by setting variables in the command line or in the environment. Here is
an example:
./configure CC=c99 CFLAGS=-g LIBS=-lposix
*Note Defining Variables::, for more details.
Compiling For Multiple Architectures
====================================
You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory. To do this, you can use GNU 'make'. 'cd' to the
directory where you want the object files and executables to go and run
the 'configure' script. 'configure' automatically checks for the source
code in the directory that 'configure' is in and in '..'. This is known
as a "VPATH" build.
With a non-GNU 'make', it is safer to compile the package for one
architecture at a time in the source code directory. After you have
installed the package for one architecture, use 'make distclean' before
reconfiguring for another architecture.
On MacOS X 10.5 and later systems, you can create libraries and
executables that work on multiple system types--known as "fat" or
"universal" binaries--by specifying multiple '-arch' options to the
compiler but only a single '-arch' option to the preprocessor. Like
this:
./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
CPP="gcc -E" CXXCPP="g++ -E"
This is not guaranteed to produce working output in all cases, you
may have to build one architecture at a time and combine the results
using the 'lipo' tool if you have problems.
Installation Names
==================
By default, 'make install' installs the package's commands under
'/usr/local/bin', include files under '/usr/local/include', etc. You
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'configure' the option '--prefix=PREFIX', where PREFIX must be an
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You can specify separate installation prefixes for
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Documentation and other data files still use the regular prefix.
In addition, if you use an unusual directory layout you can give
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The most portable way to affect installation locations is to pass the
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The first method involves providing an override variable for each
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prefix=/alternate/directory' will choose an alternate location for all
directory configuration variables that were expressed in terms of
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but not in terms of '${prefix}', must each be overridden at install time
for the entire installation to be relocated. The approach of makefile
variable overrides for each directory variable is required by the GNU
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that end up requiring recompilation when using this method, particularly
noticeable in packages that use GNU Libtool.
The second method involves providing the 'DESTDIR' variable. For
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when some directory options were not specified in terms of '${prefix}'
at 'configure' time.
Optional Features
=================
If the package supports it, you can cause programs to be installed
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For packages that use the X Window System, 'configure' can usually
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overridden with 'make V=0'.
Particular systems
==================
On HP-UX, the default C compiler is not ANSI C compatible. If GNU CC
is not installed, it is recommended to use the following options in
order to use an ANSI C compiler:
./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
and if that doesn't work, install pre-built binaries of GCC for HP-UX.
HP-UX 'make' updates targets which have the same time stamps as their
prerequisites, which makes it generally unusable when shipped generated
files such as 'configure' are involved. Use GNU 'make' instead.
On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
parse its '<wchar.h>' header file. The option '-nodtk' can be used as a
workaround. If GNU CC is not installed, it is therefore recommended to
try
./configure CC="cc"
and if that doesn't work, try
./configure CC="cc -nodtk"
On Solaris, don't put '/usr/ucb' early in your 'PATH'. This
directory contains several dysfunctional programs; working variants of
these programs are available in '/usr/bin'. So, if you need '/usr/ucb'
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On Haiku, software installed for all users goes in '/boot/common',
not '/usr/local'. It is recommended to use the following options:
./configure --prefix=/boot/common
Specifying the System Type
==========================
There may be some features 'configure' cannot figure out
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CPU-COMPANY-SYSTEM
where SYSTEM can have one of these forms:
OS
KERNEL-OS
See the file 'config.sub' for the possible values of each field. If
'config.sub' isn't included in this package, then this package doesn't
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If you are _building_ compiler tools for cross-compiling, you should
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If you want to _use_ a cross compiler, that generates code for a
platform different from the build platform, you should specify the
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Sharing Defaults
================
If you want to set default values for 'configure' scripts to share,
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'PREFIX/etc/config.site' if it exists. Or, you can set the
'CONFIG_SITE' environment variable to the location of the site script.
A warning: not all 'configure' scripts look for a site script.
Defining Variables
==================
Variables not defined in a site shell script can be set in the
environment passed to 'configure'. However, some packages may run
configure again during the build, and the customized values of these
variables may be lost. In order to avoid this problem, you should set
them in the 'configure' command line, using 'VAR=value'. For example:
./configure CC=/usr/local2/bin/gcc
causes the specified 'gcc' to be used as the C compiler (unless it is
overridden in the site shell script).
Unfortunately, this technique does not work for 'CONFIG_SHELL' due to an
Autoconf limitation. Until the limitation is lifted, you can use this
workaround:
CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash
'configure' Invocation
======================
'configure' recognizes the following options to control how it
operates.
'--help'
'-h'
Print a summary of all of the options to 'configure', and exit.
'--help=short'
'--help=recursive'
Print a summary of the options unique to this package's
'configure', and exit. The 'short' variant lists options used only
in the top level, while the 'recursive' variant lists options also
present in any nested packages.
'--version'
'-V'
Print the version of Autoconf used to generate the 'configure'
script, and exit.
'--cache-file=FILE'
Enable the cache: use and save the results of the tests in FILE,
traditionally 'config.cache'. FILE defaults to '/dev/null' to
disable caching.
'--config-cache'
'-C'
Alias for '--cache-file=config.cache'.
'--quiet'
'--silent'
'-q'
Do not print messages saying which checks are being made. To
suppress all normal output, redirect it to '/dev/null' (any error
messages will still be shown).
'--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
'configure' can determine that directory automatically.
'--prefix=DIR'
Use DIR as the installation prefix. *note Installation Names:: for
more details, including other options available for fine-tuning the
installation locations.
'--no-create'
'-n'
Run the configure checks, but stop before creating any output
files.
'configure' also accepts some other, not widely useful, options. Run
'configure --help' for more details.

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## Process this file with automake to produce Makefile.in
# Files to be included in distribution
EXTRA_DIST = ent/entitle.gif init.d/service.fedora init.d/service.redhat \
init.d/sysv.lsb init.d/sysv.redhat nist/template9 \
contrib/diags/data_prep.c contrib/diags/bins.p contrib/diags/inc.p \
contrib/diags/lognorm.r contrib/diags/lognorm.sh \
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contrib/build/havege_sample.c contrib/build/fedora.spec
# programs used in check targets
EXTRA_PROGRAMS = ent/entest nist/nist
# Build install script and tests as necessary
SUBDIRS = src init.d man ent nist
# check entire package
DISTCHECK_CONFIGURE_FLAGS = "--enable-nistest"

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v1.9.8 (Sep 30, 2019)
* Various bug fixes - please see ChangeLog for the detailed list of changes
v1.9.5 (Aug 11, 2018)
* Various bug fixes - please see ChangeLog for the detailed list of changes
v1.9.4 (Aug 11, 2018)
* Avoid misleading message if cmd socket is in use
v1.9.3 (Aug 10, 2018)
I (Jirka Hladky) took over haveged upstream development and moved it to GiHub
https://github.com/jirka-h/haveged
This version implements a command mode and use it for chroot -it was
contributed by Dr. Werner Fink.
v1.9.2 (Nov 16, 2017)
This release cleans up issues that have accumulated since the last release. I retired
several years ago, and haveged is no longer under active development. This release only
attempts to collect and document the downstream reports I have received.
v1.9.1 (Feb 11, 2014)
Documentation and sample file touch-up for v1.9.
v1.9 (Feb 10, 2014)
A Fedora bugzilla request was received to harden the haveged build. Since haveged has
traditionally been fussy with compiler options, Jirka Hladky set up a large scale test
using using TestU01's BigCrush and PractRand. A normally harmless bug inadvertently sent
the 8TB data sets through the haveged run-time continuous test. This accident revealed
many problems with the run-time test implementation, including incorrect test defaults
based on app/daemon selection, broken dead man limit in test procedure B, broken retry
logic, and implementation bugs in both test procedure A and B. Attempting to diagnose
these problems also revealed the injection feature of the diagnostic build was also
broken.
Once the injection facility was fixed, an independent implementation of the AIS reference
for procedure B was used to verify the haveged implementation down to bit level. Portions
of the run-time test suite were rewritten to correct defects and improve performance of the
run-time test suite in PIE builds. The procedure A tests were rewritten to remove the need
to overlap the previous test to attain byte alignment - all test procedures are now bit
oriented. Unrelated changes included in the release include adding a quick version check
for libhavege use, many small improvements to diagnostics, and more cleanup man pages,
sample files, and other documentation.
Special thanks to Jirka Hladky for help in sorting out the procedure B bugs, verifying
the haveged RNG is statistically comparable to RDRAND, and the first formal testing of
haveged on ARM.
v1.8 (Jan 02, 2014)
Fix return code for signaled termination. Update init.d/service.fedora to use new
return code and simple service type. Add --enable_unitdir as DESTDIR for systemd
install. Cleanup documentation and man file.
v1.7c (Jun 08, 2013)
Additional fix for run-time test alignment problems on mips.
v1.7b (Jun 06, 2013)
Fix run-time test alignment problems on sparc and mips. Fix ppc detection in build.
v1.7a (Feb 13, 2013)
Fix broken parallel builds - fix LDADD problem in build, VPATH problems in check targets.
Move to check-local for check target to work with automake v1.13 but retain backward
compatibility. Modify build to make tuning component optional in build. Improve sample
spec file and docs.
v1.7 (Jan 15, 2013)
The build has been restructured to provide a devel package. This introduces a new libtool
dependency. The new contrib/build/build.sh script is intended to toggle this requirement
as well as providing a bootstrap to recover from automake mismatches. The script will also
build and run devel sample code for those interested in using the devel package.
Other build related changes include updating AC_PREQ to a more reasonable, 2.59 and changing
the build option for init scripts to default to --enable-init=none. The format of the
haveged diagnostic display has changed to provided more information and the output is now
displayed after output is generated in the non-daemon case.

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Haveged, an entropy source
INTRODUCTION
Complete documentation on haveged can be found at http://www.issihosts.com/haveged/
Linux provides device interfaces (/dev/random and /dev/urandom) to a pool of
random numbers collected from system interrupt service routines. On some
systems, especially on those systems with high needs or limited user
interaction, the standard collection mechanism cannot meet demand. In those
cases, an adequate supply of random numbers can be maintained by feeding
additional entropy into /dev/random pool via a file system interface. The
haveged daemon was created to fulfill this function using random data generated
by the HAVEGE algorithm.
The HAVEGE algorithm is based upon the indirect effects of unrelated hardware
events on the instruction timing of a calculation that is sensitive to processor
features such as branch predictors and instruction/data access mechanisms.
Samples from a high-resolution timer are input into the algorithm to produce a
stream of random data in a collection buffer. The algorithm requires no special
privilege other than access to a high resolution timer, as provided by hardware
instruction or a system call.
The HAVEGE mechanism is implemented in C using in-line assembly only where
direct hardware access is needed. On modern compilers, compiler intrinsics are
used to replace much if not all in-line assembly. The haveged implementation of
HAVEGE adds two crucial features: automated tuning of the algorithm to an
environment and a run time facility to verify the data generated in the
collection buffer.
The haveged collection loop is tuned at run-time to match the size of the hosts
L1 data and instruction caches. The size determination is made on the basis of
the best fit to the following (low to high):
1. as a compiled default
2. as determined by cpuid, if available
3. as determined by the /sys file system, if available
4. as specified by initialization parameters.
Run-time verification of collection buffer contents is based upon the
methodology from the proposed AIS-31 standard from BSI, the German Federal
Office for Information Security (Bundesamt für Sicherheit in der
Informationstechnik). In the suggested configuration, haveged passes most of the
requirements for a NTG.1 class device described in version two of the AIS-31
specification.
The haveged implementation also provides an experimental feature to multiplex
havege collections over multiple cpu cores. Interprocess coordination in this
configuration sacrifices a significant fraction of haveged throughput in
exchange for a cpu load spread over a number of processors.
All of the above features are contained within the haveged-devel sub package of
haveged. The haveged package can be built with libtool to expose the devel sub
package or without libtool if the devel library is not needed. In either case,
the executable built contains a file system interface to haveged-devel features
and an optional facility to feed havege output into the random device. The build
system also provides "check" targets to test the output of the executable's
random number generator through the file system interface.
TESTING haveged
Testing via build check targets has been part of the haveged distribution since
the project moved to automake. Original tests were limited to a quick evaluation
implemented as an adaptation of the open source ent tool from Fourmilab and a
more thorough evaluation based upon the NIST SP800 test suite. Run time testing
was added to haveged version 1.5 as part of an effort to loosely follow the RNG
testing AIS-31 framework of the German Common Criteria organization, BSI.
The significant features of the AIS-31 framework are:
Run-time tests are broken into 2 groups, Procedure A containing 5 tests, and
Procedure B containing 3 tests. Procedure A consists of performing a 48-bit
disjointedness test on 64K sequences, followed by 257 repetitions of the four
FIPS-140-1 tests and an auto-correlation test on successive 2000 bit sequences.
Procedure B performs distribution tests for 10,000 occurrences of 1, 2, 3, 4 bit
runs in successive samples, followed by a entropy estimate based upon on another
256000+2560 bit sample. A sample must pass all individual tests to pass the
procedure. An ideal RNG is expected to pass Procedure A with a probability of
0.9987 and pass Procedure B with with a probability of 0.9998. One retry will be
attempted to recover from the the failure of a single test in either procedure.
The probability an ideal generator would fail the retry is nill.
Special features of the haveged implementation:
1) A failure of either procedure is a fatal error. In the case of haveged, the
instance will terminate.
2) The tests operate directly on the collection buffer after a fill. Performance
costs are acceptable except for the auto-correlation test, test5. An option
to skip test5 on some repetitions mitigates this problem.
3) Tests can take place at start up (a "tot" test) or continuously as specified
by a haveged parameter. In the continuous case, there is no implied alignment
between the collection buffer and the testing context. Collection buffer
contents will be released for consumption provided the buffer does not contain
a failed individual test.
4) The size of the input required to complete procedure B depends on the content.
This means there is no fixed alignment of the test input in the collection
buffer.
5) Procedure retries are logged. Extended information is available with -v3. Retries
are expected (see failure rates above) but normally only seen with output
ranges north of a few GB.
More detailed information on the adaptation of the BIS framework can be found
at http://www.issihosts.com/haveged/ais31.html
BUILDING haveged
This package originated on "Enterprise Linux 5" systems (RHEL 5 / CentOS 5 / SL
5), but every effort has been made to retain and broaden the hardware support of
the original HAVEGE implementation. The package uses the automake build system.
By default, the build uses a libtool build to expose haveged-devel. The
contrib/build directory contains a build.sh script to toggle the libtool
requirement and recover from some autotools failures. Change directory to the
build directory and type ./build.sh for options.
The configure process uses hardware detection via config.sub or the configure
"-host" command line argument. The configure "host" variable is used to select
in-line assembly or compiler intrinsics appropriate to the build target.
Currently supported hosts are:
1. x86 (x86_64 and i686)
2. aarch64
3. armv7hl
4. ppc64le
5. ia64
6. powerpc
7. s390
The generic host type is provided for those systems without user level access to
a high-resolution system timer. In this case, the --enable-clock_gettime option
is set to 'yes'.
The following build options are available to "./configure":
1. --enable-clock_gettime (default 'no' for recognized hosts)
2. --enable-daemon (default 'yes' if Linux)
3. --enable-diagnostic (default 'no')
4. --enable-init (type, default 'no')
5. --enable-initdir (default '' unless enable--init="service.*")
6. --enable-nistest (default 'no' but recommended)
7. --enable-olt (default 'yes')
8. --enable-threads (experimental)
9. --enable-tune (default 'yes')
Detailed option information is available by typing "./configure --help". For
options xxx that take "yes/no" arguments, --disable-xxx may be used as the
inverse of --enable-xxx.
If --enable-clock_gettime() is 'yes', the clock_gettime(CLOCK_MONOTONIC) system
call will be used as a timer source. This option defaults to 'yes' for generic
host builds and 'no' otherwise. This option may proved useful if access to time
hardware is privileged. Due to variability of clock_gettime() implementations,
the adequacy of the clock_gettime() resolution cannot be known until run time.
It is strongly advised to use run-time testing if this option is used.
If --enable-daemon is 'yes', ioctl access required to the random device and
read-write access to the /proc virtual file system is required. The daemon may
be run in the foreground or fork into the background based upon a command line
argument. The daemon interface targets the 2.6 and later kernel and may not work
on 2.4 kernels due to difference in the random interface between those two
kernel versions. The change in the proc file system from pool size expressed in
bytes to pool size expressed in bits has been taken into account, other changes
may be required. This option is 'no' when diagnostic modes are enabled. If
the option is no the executable is installed in the user bin directory instead
of the sbin directory.
If --enable-diagnostic is 'yes', the capture and inject diagnostic interfaces
are enabled. The capture or inject diagnostic may be enabled singly by setting
the option to 'capture' or 'inject'. A setting for any value other than 'no'
for this option forces --enable-daemon=no. See DIAGNOSTICS below for details.
The --enable-init option is active only when --enable-daemon is 'yes'. This
value can specify a template to be used in the installation of an init method
by the build's install target. The default value, 'no', disables the feature.
Other values can be used to install a traditional systemv init script or
systemd unit definition. See INSTALLATION for details.
The --enable-initdir is active only when --enable-init='service.*', i.e. a
systemd install. See INSTALLATION for details.
The --enable-nistest option enables more thorough testing for the check target.
See CHECKING for details.
The --enable-olt option is provided to suppress the entire online test facility.
This option is provided for systems with a very limited resource budget and the
ability to thoroughly test the RNG output by other means. When enabled, the online
test system tests the output of the haveged random number generator using AIS-31
test procedures A and B. Either or both tests may be run as a total failure check
(a "tot" test) at initialization and/or continuously during all subsequent haveged
operation - See the man page and the description at
http://www.issihosts.com/haveged/ais31.html for further information.
The --enable-threads option is an experimental prototype for running multiple
collection threads in a single haveged instance. The goal is to create a
multi-core haveged that would spread collection overhead more evenly over the
available cpu resources.
The --enable-tune option allows the on-line tuning facility to be suppressed.
This is intended for systems with special needs and or a limited resource budget.
Setting the option to 'yes' enables both the cpuid and virtual file system methods,
a value of 'no' suppresses both methods. Individual tuning methods can be selected
by setting the option to either 'cpuid' or 'vfs'. Note that the 'cpuid' method
is always conditional on host type and will not be present if the hardware
architecture does not support the instruction.
The haveged build does not modify CFLAGS and DFLAGS, so for example:
CFLAGS="-fpic -DGENERIC_DCACHE=32" LDFLAGS="-z now" ./configure --disable-tune
would configure the build for a manually-tuned, hardened daemon with a default
data cache size of 32kb.
CHECKING haveged
The build check target provides two test procedures for the build.
1. A "quick" check based upon and adaptation of the public domain ENT program.
The "entest" program uses the ENT sources to subject a sample to the following:
a) The Chi-Square result must fall within acceptable bounds (>1% and <99 %)
b) The entropy/character must exceed a minimum (7.5)
c) The arithmetic mean must exceed a minimum (127.0)
d) The monte-carlo approximation of PI must lie within error bounds (.5%)
e) The Sequential Correlation Coefficient must be below a minimum (.8)
The program provides a pass-fail indication and an optional display of the
results to stdout. The entest checks are quite weak and intended only as a
quick sanity check.
2. An adaptation of the NIST Statistical Test Suite as adapted by Oliver
Rochecouste of irisa.fr as part of the original havege project. More that 400
tests are performed in a typical run. The program provides as pass-fail
indication with detailed results reported in the nist.out file in the
nist directory. You will need sit down with SP800-*.pdf available from the
NIST to review the detailed results. AIS31 provides recommendations for the
NIST test suite as 'additional tests'. See testing documentation at
http://www.issihosts.com/haveged/ais31.html for further information.
The "quick" test is always part of the check target. The NIST suite is run only
when --enable-nistest is 'yes'.
Both checks function the same way, haveged is run to collect a sample file in
the test directory which is then analyzed by the test program. A pass-fail return
is given in both cases, additional information is written to stdout. The input
samples and the nist.out report are deleted by the clean make target.
Both test mechanisms are statistical and even a fully functional random number
generator will experience occasional failures. It is not uncommon to see one or
two failures in the NIST suite and the entest will occasionally fail with a small
sample size (usually the Chi-Square test barks). Early haveged releases used a
entest sample size of 1MB, this has been increased to 16MB because failures with
that sample size were all too common. A 16MB sample will also deplete and refill
the haveged collection area to exercise all buffer logic.
Users are encouraged to run their own external tests. The --number==0 option is
a convenient means to pipe haveged output into external suites such as Dieharder,
the TESTU01 batteries, or PractRand.
RUNNING haveged
The following invocation arguments are always available:
--buffer , -b [] Buffer size [KW] - default : 128
--data , -d [] Data cache size [KB], with fallback to 16
--inst , -i [] Instruction cache size [KB], with fallback to 16
--file , -f [] Sample output file - default: 'sample', '-' for stdout
--number , -n [] Output size in [k|m|g|t]. 0 = unlimited to stdout
--verbose , -v [] Verbose mask 0=none,1=summary,2=retries,4=timing,8=loop,16=code,32=test
--help , -h This help
The "-b", "-d", "-i" options are needed only in special cases. Generator output
should be validated after changes to these values.
If haveged is built with online testing enabled, the following is present
--onlinetest , -o [] [t<x>][c<x>] x=[a[n][w]][b[w]] 't'ot, 'c'ontinuous, default: ta8b"
The default configuration executes the "tot" test using AIS procedure B. At the completion
of the tot test, the buffer is reloaded and any continuous tests will be run before
data becomes available.
If haveged is built with threads support, the following is present
--threads , -t [] Number of threads
If daemon interface is enabled, the following options are available:
--Foreground , -F Run daemon in foreground, do not fork and detach,
--pid , -p [] The location of the daemon pid file, default: /var/run/haveged.pid
--run , -r [] 0=daemon,1=config info,>1=Write <r>KB sample file
--write , -w [] Set write_wakeup_threshold [bits]
If haveged is running detached, diagnostic output is written to syslog, otherwise
output is written to stderr.
If the daemon interface is enabled, non-zero "-r" options are used to test the
haveged random number generator; the random number generator will be configured,
the initial data collection pass will be executed, configuration details will be
written to stdout, and a "-r" KB sample of output will be written to the sample
output file for all "-r" > 1. The "-n" option provides a more friendly version
of r > 1.
If the daemon interface and --run==1 is specified, or if --run is not available
and --number is not specified a summary of build, tuning, and execution
is displayed and haveged exits without generating data:
<prog>: ver: <ver>; arch: <arch>; vend: <vend>, build: (<opts>); collect: <collect>
<prog>: cpu: <cpu> (<tune>);data: <data> (<tune>); inst: <inst> (<tune>); idx: <idx>; sz: <sz>
<prog>: tot tests(<spec>): <score>; continuous tests(<spec>):<score> last entropy estimate <ent>
<prog>: fills: <fills>, generated: <total>
where
<prog> build: program name - normally haveged
<ver> build: package version
<arch> build: architecture: ia64, generic, ppc, s390, sparc, sparclite, x86
<vend> build: vendor string of host from cpuid if available else 'generic'
<opts> build: version of gcc used and build option flags - see below.
<collect> tuning: collection buffer size
<cpu> tuning: (sources list for cpu info, see below)
<data> tuning: size, (sources list for L1 data cache)
<inst> tuning: size, (sources list for L1 instruction cache)
<idx> tuning: collector loops used/collector loops available
<sz> tuning: collector size used/collector size available.
<tune> tuning: tuning sources - see below
<spec> exec: tests to be executed in --onlinetest format
<ent> exec: last entropy estimate from procedure B.
<score> exec: pass/fail counts for AIS test procedures
<fills> exec: number of times buffer was filled
<total> exec: number of bytes output
build option flags represent the ./configure options as:
C=clock_gettime, D=diagnostic I=tune with cpuid, M=multi-core, T=online tests, V=tune with vfs
tuning sources are:
D=default value, P=instance parameter, C=cpuid present,
H=hyperthreading, A=AMD cpuid, A5=AMD fn5, A6=AMD fn6, A8=AMD fn8
L2=Intel has leaf2, L4=Intel has leaf4, B=Intel leaf b,
4=intel leaf4, V=virtual file system available
VS=/sys/devices/system/cpu/cpu%d/cache/index<n>/level,
VO=/sys/devices/system/cpu/online, VI=/proc/cpuinfo
VC=/sys/devices/system/cpu
Sources displayed in parenthesis are white space separated lists of the above
tokens. The "collector * used/collector *available" values indicate the fit of
the haveged collection loop to the L1 instruction cache.
Items marked 'exec:' above have meaning only when data is generated. The display
of test results is customized to match the test options specified. The last few
lines of the build/tuning summary (those items marked 'exec:' above) also
appear by themselves as the 'exec summary' in other circumstances.
In other circumstances, the completion of initialization is announced by a banner
written to the log:
"<prog>: starting up"
"Writing <n> byte output to <file>"
The first line above is used when running as a daemon, the second otherwise. If
one or more online tests are running, test failures are logged as:
<prog>: AIS-31 <stage> procedure <proc>: <action> <bytes> bytes fill <fill>
where
<stage> is either 'tot' or 'continuous'
<proc> is either 'A' or 'B'
<action> is either 'retry' or 'fail'
<bytes> is number of bytes processed in procedure before failure
<fill> is the number of times the buffer was filled
The exec summary is logged upon error or signal terminations. Other log output is
controlled by --verbose:
A --verbose bit mask to obtain additional diagnostic information:
0x01 Show exec summary on termination, retry summary
0x02 Show online test retry details
0x04 Show timing for collections
0x08 Show collection loop characteristics
0x10 Show code offsets
0x20 Show all online test completion details
The "--write" option will set proc/sys/kernel/random/write_wakeup_threshold to
the given value. This is useful because this threshold is very small on some
systems. A minimum of 1024 is recommended.
The file system interface supports file creation of up data setups up to 16tb or
can be part of a piped command set. See the man(8) page for examples.
DIAGNOSTIC haveged build
The diagnostic build is a special version of the non-daemon configuration with a
specialized --run option. The --run levels 0 and 1 correspond duplicate the
equivalent application functions. One or more of the addition commands may be
included depending on the --enable-diagnostic value chosen.
capture (--run 2)
Run the RNG but collect the timer inputs in a separate buffer. The normal
RNG output is discarded and replaced by the timer inputs. Requires additional
buffering, performance is poor because 8 times as many fills are required to
generate same amount of output.
inject tics (--run 4)
Replace timer source with file input. Requires additional buffering, source
must account for generator warmup.
inject data (--run 8)
Bypass the normal RNG completely and read input directly into the output
buffer. Generator warmup is skipped. This option is useful for validating
the online test suite.
Knowledge of haveged internals is needed to use the special features effectively
and interpret the results. The diagnostic build identifies itself as
'havege_diagnostic' in -help display and other outputs.
INSTALLATION
If the daemon interface is not enabled, the install places the executable in
automake's bin_PROGRAMS directory and provides a man(8) page. A man(3) page
is provided for the libtool build. If the daemon interface is enabled, the
executable is installed in automake's sbin_PROGRAMS directory.
If the daemon interface is enabled, the --enable-init setting provides a simple
template system to setup the init method. If --enable-init is set to none
no action is taken. Otherwise, the template must reside in the init.d build
directory and is selected by the setting. Template names "service.*" indicate
that a systemd style init, while template names "sysv.*" are used for sysv
style init scripts.
Sample sysv style templates are provided for linux standard base, sysv.lsb,
and redhat systems, sysv.redhat , such as centos which have not moved to
systemd style inits.
For systemd style installs, --enable-initdir specifies the systemd unit
directory. If the setting is not specified (or is ''), the default value is
obtained from hosts pkg-config query for systemdsystemunitdir. Sample systemd
templates are provided for forking, service.forking, and non-forking,
service.fedora, configurations. The non-forking configuration is recommended to
avoid the overhead of PID file and minimize start-up cost.
Examples:
./configure --enable-init=service.redhat
./configure --enable-init=sysv.lsb
Custom init scripts can be added as necessary by adding templates to the
init.d directory.
A sample file, haveged.spec, is provided in the build root as a guide for
those who want to build a rpm. As with init scripts, the sample may need
customization before use. Other SPEC file examples can be found in the
contrib directory (see EXTRAS for details).
EXTRAS
The contrib directory contains bits and pieces that are not integrated into the
distribution. Currently this directory contains build related utilities in
the build directory and an unorganized collection of some of the tools used
to analyze haveged in the diags directory.
The script contrib/build/build.sh organizes the build utilities. The script
provides methods to toggle the use of libtool in the build in particularly
problematic environments, a bootstrap to recover from automake error states
and the option to build and run a devel sample program after the devel
sub package has been built.
Several sample package spec files are provided as contrib/build/*.spec. The
havege_sample.c source demonstrates usage of the havege.h API.

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![Continuous Integration](https://github.com/jirka-h/haveged/workflows/Continuous%20Integration/badge.svg)
Haveged, an entropy source
INTRODUCTION
Complete documentation on haveged can be found at http://www.issihosts.com/haveged/
Linux provides device interfaces (/dev/random and /dev/urandom) to a pool of
random numbers collected from system interrupt service routines. On some
systems, especially on those systems with high needs or limited user
interaction, the standard collection mechanism cannot meet demand. In those
cases, an adequate supply of random numbers can be maintained by feeding
additional entropy into /dev/random pool via a file system interface. The
haveged daemon was created to fulfill this function using random data generated
by the HAVEGE algorithm.
The HAVEGE algorithm is based upon the indirect effects of unrelated hardware
events on the instruction timing of a calculation that is sensitive to processor
features such as branch predictors and instruction/data access mechanisms.
Samples from a high-resolution timer are input into the algorithm to produce a
stream of random data in a collection buffer. The algorithm requires no special
privilege other than access to a high resolution timer, as provided by hardware
instruction or a system call.
The HAVEGE mechanism is implemented in C using in-line assembly only where
direct hardware access is needed. On modern compilers, compiler intrinsics are
used to replace much if not all in-line assembly. The haveged implementation of
HAVEGE adds two crucial features: automated tuning of the algorithm to an
environment and a run time facility to verify the data generated in the
collection buffer.
The haveged collection loop is tuned at run-time to match the size of the hosts
L1 data and instruction caches. The size determination is made on the basis of
the best fit to the following (low to high):
1. as a compiled default
2. as determined by cpuid, if available
3. as determined by the /sys file system, if available
4. as specified by initialization parameters.
Run-time verification of collection buffer contents is based upon the
methodology from the proposed AIS-31 standard from BSI, the German Federal
Office for Information Security (Bundesamt für Sicherheit in der
Informationstechnik). In the suggested configuration, haveged passes most of the
requirements for a NTG.1 class device described in version two of the AIS-31
specification.
The haveged implementation also provides an experimental feature to multiplex
havege collections over multiple cpu cores. Interprocess coordination in this
configuration sacrifices a significant fraction of haveged throughput in
exchange for a cpu load spread over a number of processors.
All of the above features are contained within the haveged-devel sub package of
haveged. The haveged package can be built with libtool to expose the devel sub
package or without libtool if the devel library is not needed. In either case,
the executable built contains a file system interface to haveged-devel features
and an optional facility to feed havege output into the random device. The build
system also provides "check" targets to test the output of the executable's
random number generator through the file system interface.
TESTING haveged
Testing via build check targets has been part of the haveged distribution since
the project moved to automake. Original tests were limited to a quick evaluation
implemented as an adaptation of the open source ent tool from Fourmilab and a
more thorough evaluation based upon the NIST SP800 test suite. Run time testing
was added to haveged version 1.5 as part of an effort to loosely follow the RNG
testing AIS-31 framework of the German Common Criteria organization, BSI.
The significant features of the AIS-31 framework are:
Run-time tests are broken into 2 groups, Procedure A containing 5 tests, and
Procedure B containing 3 tests. Procedure A consists of performing a 48-bit
disjointedness test on 64K sequences, followed by 257 repetitions of the four
FIPS-140-1 tests and an auto-correlation test on successive 2000 bit sequences.
Procedure B performs distribution tests for 10,000 occurrences of 1, 2, 3, 4 bit
runs in successive samples, followed by a entropy estimate based upon on another
256000+2560 bit sample. A sample must pass all individual tests to pass the
procedure. An ideal RNG is expected to pass Procedure A with a probability of
0.9987 and pass Procedure B with with a probability of 0.9998. One retry will be
attempted to recover from the the failure of a single test in either procedure.
The probability an ideal generator would fail the retry is nill.
Special features of the haveged implementation:
1) A failure of either procedure is a fatal error. In the case of haveged, the
instance will terminate.
2) The tests operate directly on the collection buffer after a fill. Performance
costs are acceptable except for the auto-correlation test, test5. An option
to skip test5 on some repetitions mitigates this problem.
3) Tests can take place at start up (a "tot" test) or continuously as specified
by a haveged parameter. In the continuous case, there is no implied alignment
between the collection buffer and the testing context. Collection buffer
contents will be released for consumption provided the buffer does not contain
a failed individual test.
4) The size of the input required to complete procedure B depends on the content.
This means there is no fixed alignment of the test input in the collection
buffer.
5) Procedure retries are logged. Extended information is available with -v3. Retries
are expected (see failure rates above) but normally only seen with output
ranges north of a few GB.
More detailed information on the adaptation of the BIS framework can be found
at http://www.issihosts.com/haveged/ais31.html
BUILDING haveged
This package originated on "Enterprise Linux 5" systems (RHEL 5 / CentOS 5 / SL
5), but every effort has been made to retain and broaden the hardware support of
the original HAVEGE implementation. The package uses the automake build system.
By default, the build uses a libtool build to expose haveged-devel. The
contrib/build directory contains a build.sh script to toggle the libtool
requirement and recover from some autotools failures. Change directory to the
build directory and type ./build.sh for options.
The configure process uses hardware detection via config.sub or the configure
"-host" command line argument. The configure "host" variable is used to select
in-line assembly or compiler intrinsics appropriate to the build target.
Currently supported hosts are:
1. x86
2. ia64
3. powerpc
4. s390
5. sparc
6. sparclite
7. generic
The generic host type is provided for those systems without user level access to
a high-resolution system timer. In this case, the --enable-clock_gettime option
is set to 'yes'.
The following build options are available to "./configure":
1. --enable-clock_gettime (default 'no' for recognized hosts)
2. --enable-daemon (default 'yes' if Linux)
3. --enable-diagnostic (default 'no')
4. --enable-init (type, default 'no')
5. --enable-initdir (default '' unless enable--init="service.*")
6. --enable-nistest (default 'no' but recommended)
7. --enable-olt (default 'yes')
8. --enable-threads (experimental)
9. --enable-tune (default 'yes')
Detailed option information is available by typing "./configure --help". For
options xxx that take "yes/no" arguments, --disable-xxx may be used as the
inverse of --enable-xxx.
If --enable-clock_gettime() is 'yes', the clock_gettime(CLOCK_MONOTONIC) system
call will be used as a timer source. This option defaults to 'yes' for generic
host builds and 'no' otherwise. This option may proved useful if access to time
hardware is privileged. Due to variability of clock_gettime() implementations,
the adequacy of the clock_gettime() resolution cannot be known until run time.
It is strongly advised to use run-time testing if this option is used.
If --enable-daemon is 'yes', ioctl access required to the random device and
read-write access to the /proc virtual file system is required. The daemon may
be run in the foreground or fork into the background based upon a command line
argument. The daemon interface targets the 2.6 and later kernel and may not work
on 2.4 kernels due to difference in the random interface between those two
kernel versions. The change in the proc file system from pool size expressed in
bytes to pool size expressed in bits has been taken into account, other changes
may be required. This option is 'no' when diagnostic modes are enabled. If
the option is no the executable is installed in the user bin directory instead
of the sbin directory.
If --enable-diagnostic is 'yes', the capture and inject diagnostic interfaces
are enabled. The capture or inject diagnostic may be enabled singly by setting
the option to 'capture' or 'inject'. A setting for any value other than 'no'
for this option forces --enable-daemon=no. See DIAGNOSTICS below for details.
The --enable-init option is active only when --enable-daemon is 'yes'. This
value can specify a template to be used in the installation of an init method
by the build's install target. The default value, 'no', disables the feature.
Other values can be used to install a traditional systemv init script or
systemd unit definition. See INSTALLATION for details.
The --enable-initdir is active only when --enable-init='service.*', i.e. a
systemd install. See INSTALLATION for details.
The --enable-nistest option enables more thorough testing for the check target.
See CHECKING for details.
The --enable-olt option is provided to suppress the entire online test facility.
This option is provided for systems with a very limited resource budget and the
ability to thoroughly test the RNG output by other means. When enabled, the online
test system tests the output of the haveged random number generator using AIS-31
test procedures A and B. Either or both tests may be run as a total failure check
(a "tot" test) at initialization and/or continuously during all subsequent haveged
operation - See the man page and the description at
http://www.issihosts.com/haveged/ais31.html for further information.
The --enable-threads option is an experimental prototype for running multiple
collection threads in a single haveged instance. The goal is to create a
multi-core haveged that would spread collection overhead more evenly over the
available cpu resources.
The --enable-tune option allows the on-line tuning facility to be suppressed.
This is intended for systems with special needs and or a limited resource budget.
Setting the option to 'yes' enables both the cpuid and virtual file system methods,
a value of 'no' suppresses both methods. Individual tuning methods can be selected
by setting the option to either 'cpuid' or 'vfs'. Note that the 'cpuid' method
is always conditional on host type and will not be present if the hardware
architecture does not support the instruction.
The haveged build does not modify CFLAGS and DFLAGS, so for example:
CFLAGS="-fpic -DGENERIC_DCACHE=32" LDFLAGS="-z now" ./configure --disable-tune
would configure the build for a manually-tuned, hardened daemon with a default
data cache size of 32kb.
CHECKING haveged
The build check target provides two test procedures for the build.
1. A "quick" check based upon and adaptation of the public domain ENT program.
The "entest" program uses the ENT sources to subject a sample to the following:
a) The Chi-Square result must fall within acceptable bounds (>1% and <99 %)
b) The entropy/character must exceed a minimum (7.5)
c) The arithmetic mean must exceed a minimum (127.0)
d) The monte-carlo approximation of PI must lie within error bounds (.5%)
e) The Sequential Correlation Coefficient must be below a minimum (.8)
The program provides a pass-fail indication and an optional display of the
results to stdout. The entest checks are quite weak and intended only as a
quick sanity check.
2. An adaptation of the NIST Statistical Test Suite as adapted by Oliver
Rochecouste of irisa.fr as part of the original havege project. More that 400
tests are performed in a typical run. The program provides as pass-fail
indication with detailed results reported in the nist.out file in the
nist directory. You will need sit down with SP800-*.pdf available from the
NIST to review the detailed results. AIS31 provides recommendations for the
NIST test suite as 'additional tests'. See testing documentation at
http://www.issihosts.com/haveged/ais31.html for further information.
The "quick" test is always part of the check target. The NIST suite is run only
when --enable-nistest is 'yes'.
Both checks function the same way, haveged is run to collect a sample file in
the test directory which is then analyzed by the test program. A pass-fail return
is given in both cases, additional information is written to stdout. The input
samples and the nist.out report are deleted by the clean make target.
Both test mechanisms are statistical and even a fully functional random number
generator will experience occasional failures. It is not uncommon to see one or
two failures in the NIST suite and the entest will occasionally fail with a small
sample size (usually the Chi-Square test barks). Early haveged releases used a
entest sample size of 1MB, this has been increased to 16MB because failures with
that sample size were all too common. A 16MB sample will also deplete and refill
the haveged collection area to exercise all buffer logic.
Users are encouraged to run their own external tests. The --number==0 option is
a convenient means to pipe haveged output into external suites such as Dieharder,
the TESTU01 batteries, or PractRand.
RUNNING haveged
The following invocation arguments are always available:
--buffer , -b [] Buffer size [KW] - default : 128
--data , -d [] Data cache size [KB], with fallback to 16
--inst , -i [] Instruction cache size [KB], with fallback to 16
--file , -f [] Sample output file - default: 'sample', '-' for stdout
--number , -n [] Output size in [k|m|g|t]. 0 = unlimited to stdout
--verbose , -v [] Verbose mask 0=none,1=summary,2=retries,4=timing,8=loop,16=code,32=test
--help , -h This help
The "-b", "-d", "-i" options are needed only in special cases. Generator output
should be validated after changes to these values.
If haveged is built with online testing enabled, the following is present
--onlinetest , -o [] [t<x>][c<x>] x=[a[n][w]][b[w]] 't'ot, 'c'ontinuous, default: ta8b"
The default configuration executes the "tot" test using AIS procedure B. At the completion
of the tot test, the buffer is reloaded and any continuous tests will be run before
data becomes available.
If haveged is built with threads support, the following is present
--threads , -t [] Number of threads
If daemon interface is enabled, the following options are available:
--Foreground , -F Run daemon in foreground, do not fork and detach,
--pid , -p [] The location of the daemon pid file, default: /var/run/haveged.pid
--run , -r [] 0=daemon,1=config info,>1=Write <r>KB sample file
--write , -w [] Set write_wakeup_threshold [bits]
If haveged is running detached, diagnostic output is written to syslog, otherwise
output is written to stderr.
If the daemon interface is enabled, non-zero "-r" options are used to test the
haveged random number generator; the random number generator will be configured,
the initial data collection pass will be executed, configuration details will be
written to stdout, and a "-r" KB sample of output will be written to the sample
output file for all "-r" > 1. The "-n" option provides a more friendly version
of r > 1.
If the daemon interface and --run==1 is specified, or if --run is not available
and --number is not specified a summary of build, tuning, and execution
is displayed and haveged exits without generating data:
<prog>: ver: <ver>; arch: <arch>; vend: <vend>, build: (<opts>); collect: <collect>
<prog>: cpu: <cpu> (<tune>);data: <data> (<tune>); inst: <inst> (<tune>); idx: <idx>; sz: <sz>
<prog>: tot tests(<spec>): <score>; continuous tests(<spec>):<score> last entropy estimate <ent>
<prog>: fills: <fills>, generated: <total>
where
<prog> build: program name - normally haveged
<ver> build: package version
<arch> build: architecture: ia64, generic, ppc, s390, sparc, sparclite, x86
<vend> build: vendor string of host from cpuid if available else 'generic'
<opts> build: version of gcc used and build option flags - see below.
<collect> tuning: collection buffer size
<cpu> tuning: (sources list for cpu info, see below)
<data> tuning: size, (sources list for L1 data cache)
<inst> tuning: size, (sources list for L1 instruction cache)
<idx> tuning: collector loops used/collector loops available
<sz> tuning: collector size used/collector size available.
<tune> tuning: tuning sources - see below
<spec> exec: tests to be executed in --onlinetest format
<ent> exec: last entropy estimate from procedure B.
<score> exec: pass/fail counts for AIS test procedures
<fills> exec: number of times buffer was filled
<total> exec: number of bytes output
build option flags represent the ./configure options as:
C=clock_gettime, D=diagnostic I=tune with cpuid, M=multi-core, T=online tests, V=tune with vfs
tuning sources are:
D=default value, P=instance parameter, C=cpuid present,
H=hyperthreading, A=AMD cpuid, A5=AMD fn5, A6=AMD fn6, A8=AMD fn8
L2=Intel has leaf2, L4=Intel has leaf4, B=Intel leaf b,
4=intel leaf4, V=virtual file system available
VS=/sys/devices/system/cpu/cpu%d/cache/index<n>/level,
VO=/sys/devices/system/cpu/online, VI=/proc/cpuinfo
VC=/sys/devices/system/cpu
Sources displayed in parenthesis are white space separated lists of the above
tokens. The "collector * used/collector *available" values indicate the fit of
the haveged collection loop to the L1 instruction cache.
Items marked 'exec:' above have meaning only when data is generated. The display
of test results is customized to match the test options specified. The last few
lines of the build/tuning summary (those items marked 'exec:' above) also
appear by themselves as the 'exec summary' in other circumstances.
In other circumstances, the completion of initialization is announced by a banner
written to the log:
"<prog>: starting up"
"Writing <n> byte output to <file>"
The first line above is used when running as a daemon, the second otherwise. If
one or more online tests are running, test failures are logged as:
<prog>: AIS-31 <stage> procedure <proc>: <action> <bytes> bytes fill <fill>
where
<stage> is either 'tot' or 'continuous'
<proc> is either 'A' or 'B'
<action> is either 'retry' or 'fail'
<bytes> is number of bytes processed in procedure before failure
<fill> is the number of times the buffer was filled
The exec summary is logged upon error or signal terminations. Other log output is
controlled by --verbose:
A --verbose bit mask to obtain additional diagnostic information:
0x01 Show exec summary on termination, retry summary
0x02 Show online test retry details
0x04 Show timing for collections
0x08 Show collection loop characteristics
0x10 Show code offsets
0x20 Show all online test completion details
The "--write" option will set proc/sys/kernel/random/write_wakeup_threshold to
the given value. This is useful because this threshold is very small on some
systems. A minimum of 1024 is recommended.
The file system interface supports file creation of up data setups up to 16tb or
can be part of a piped command set. See the man(8) page for examples.
DIAGNOSTIC haveged build
The diagnostic build is a special version of the non-daemon configuration with a
specialized --run option. The --run levels 0 and 1 correspond duplicate the
equivalent application functions. One or more of the addition commands may be
included depending on the --enable-diagnostic value chosen.
capture (--run 2)
Run the RNG but collect the timer inputs in a separate buffer. The normal
RNG output is discarded and replaced by the timer inputs. Requires additional
buffering, performance is poor because 8 times as many fills are required to
generate same amount of output.
inject tics (--run 4)
Replace timer source with file input. Requires additional buffering, source
must account for generator warmup.
inject data (--run 8)
Bypass the normal RNG completely and read input directly into the output
buffer. Generator warmup is skipped. This option is useful for validating
the online test suite.
Knowledge of haveged internals is needed to use the special features effectively
and interpret the results. The diagnostic build identifies itself as
'havege_diagnostic' in -help display and other outputs.
INSTALLATION
If the daemon interface is not enabled, the install places the executable in
automake's bin_PROGRAMS directory and provides a man(8) page. A man(3) page
is provided for the libtool build. If the daemon interface is enabled, the
executable is installed in automake's sbin_PROGRAMS directory.
If the daemon interface is enabled, the --enable-init setting provides a simple
template system to setup the init method. If --enable-init is set to none
no action is taken. Otherwise, the template must reside in the init.d build
directory and is selected by the setting. Template names "service.*" indicate
that a systemd style init, while template names "sysv.*" are used for sysv
style init scripts.
Sample sysv style templates are provided for linux standard base, sysv.lsb,
and redhat systems, sysv.redhat , such as centos which have not moved to
systemd style inits.
For systemd style installs, --enable-initdir specifies the systemd unit
directory. If the setting is not specified (or is ''), the default value is
obtained from hosts pkg-config query for systemdsystemunitdir. Sample systemd
templates are provided for forking, service.forking, and non-forking,
service.fedora, configurations. The non-forking configuration is recommended to
avoid the overhead of PID file and minimize start-up cost.
Examples:
./configure --enable-init=service.redhat
./configure --enable-init=sysv.lsb
Custom init scripts can be added as necessary by adding templates to the
init.d directory.
A sample file, haveged.spec, is provided in the build root as a guide for
those who want to build a rpm. As with init scripts, the sample may need
customization before use. Other SPEC file examples can be found in the
contrib directory (see EXTRAS for details).
EXTRAS
The contrib directory contains bits and pieces that are not integrated into the
distribution. Currently this directory contains build related utilities in
the build directory and an unorganized collection of some of the tools used
to analyze haveged in the diags directory.
The script contrib/build/build.sh organizes the build utilities. The script
provides methods to toggle the use of libtool in the build in particularly
problematic environments, a bootstrap to recover from automake error states
and the option to build and run a devel sample program after the devel
sub package has been built.
Several sample package spec files are provided as contrib/build/*.spec. The
havege_sample.c source demonstrates usage of the havege.h API.

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/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to 1 for clock_gettime */
#undef ENABLE_CLOCK_GETTIME
/* Library version */
#undef HAVEGE_LIB_VERSION
/* Define to 1 if you have the `accept' function. */
#undef HAVE_ACCEPT
/* Define to 1 if you have the `accept4' function. */
#undef HAVE_ACCEPT4
/* Define to 1 if you have the `bind' function. */
#undef HAVE_BIND
/* Define to 1 if you have the `connect' function. */
#undef HAVE_CONNECT
/* Define to 1 if you have the <cpuid.h> header file. */
#undef HAVE_CPUID_H
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Define to 1 if you have the `execv' function. */
#undef HAVE_EXECV
/* Define to 1 if you have the <fcntl.h> header file. */
#undef HAVE_FCNTL_H
/* Define to 1 if you have the `floor' function. */
#undef HAVE_FLOOR
/* Define to 1 if you have the `getsockopt' function. */
#undef HAVE_GETSOCKOPT
/* Define to 1 if you have the `gettimeofday' function. */
#undef HAVE_GETTIMEOFDAY
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define generic host */
#undef HAVE_ISA_GENERIC
/* Define to 1 for ia64 */
#undef HAVE_ISA_IA64
/* Define to 1 for ppc */
#undef HAVE_ISA_PPC
/* Define to 1 for s390 */
#undef HAVE_ISA_S390
/* Define to 1 for sparc */
#undef HAVE_ISA_SPARC
/* Define to 1 for sparclite */
#undef HAVE_ISA_SPARCLITE
/* Define to 1 for x86 */
#undef HAVE_ISA_X86
/* Define to 1 if you have the <limits.h> header file. */
#undef HAVE_LIMITS_H
/* Define to 1 if you have the <linux/random.h> header file. */
#undef HAVE_LINUX_RANDOM_H
/* Define to 1 if you have the `listen' function. */
#undef HAVE_LISTEN
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the `memset' function. */
#undef HAVE_MEMSET
/* Define to 1 if you have the `pow' function. */
#undef HAVE_POW
/* Define to 1 if you have the `pselect' function. */
#undef HAVE_PSELECT
/* Define to 1 if you have the `recv' function. */
#undef HAVE_RECV
/* Define to 1 if you have the <sched.h> header file. */
#undef HAVE_SCHED_H
/* Define to 1 if you have the `sched_yield' function. */
#undef HAVE_SCHED_YIELD
/* Define to 1 if you have the `select' function. */
#undef HAVE_SELECT
/* Define to 1 if you have the <semaphore.h> header file. */
#undef HAVE_SEMAPHORE_H
/* Define to 1 if you have the `send' function. */
#undef HAVE_SEND
/* Define to 1 if you have the `setsockopt' function. */
#undef HAVE_SETSOCKOPT
/* Define to 1 if you have the `socket' function. */
#undef HAVE_SOCKET
/* Define to 1 if you have the `sqrt' function. */
#undef HAVE_SQRT
/* Define to 1 if you have the <stdarg.h> header file. */
#undef HAVE_STDARG_H
/* Define to 1 if you have the <stddef.h> header file. */
#undef HAVE_STDDEF_H
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
/* Define to 1 if you have the <stdio.h> header file. */
#undef HAVE_STDIO_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* User visible structure for SCM_CREDENTIALS message */
#undef HAVE_STRUCT_UCRED
/* Define to 1 if you have the <syslog.h> header file. */
#undef HAVE_SYSLOG_H
/* Define to 1 if you have the <sys/ioctl.h> header file. */
#undef HAVE_SYS_IOCTL_H
/* Define to 1 if you have the <sys/mman.h> header file. */
#undef HAVE_SYS_MMAN_H
/* Define to 1 if you have the <sys/select.h> header file. */
#undef HAVE_SYS_SELECT_H
/* Define to 1 if you have the <sys/socket.h> header file. */
#undef HAVE_SYS_SOCKET_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/time.h> header file. */
#undef HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have the <sys/un.h> header file. */
#undef HAVE_SYS_UN_H
/* Define to 1 if you have the <sys/wait.h> header file. */
#undef HAVE_SYS_WAIT_H
/* Define to 1 if you have the <time.h> header file. */
#undef HAVE_TIME_H
/* Define to 1 if the system has the type `uint32_t'. */
#undef HAVE_UINT32_T
/* Define to 1 if the system has the type `uint8_t'. */
#undef HAVE_UINT8_T
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have the <x86intrin.h> header file. */
#undef HAVE_X86INTRIN_H
/* Define to 1 if you have the `__rdtsc' function. */
#undef HAVE___RDTSC
/* Define to the sub-directory where libtool stores uninstalled libraries. */
#undef LT_OBJDIR
/* Define to 1 to suppress daemon interface */
#undef NO_DAEMON
/* Define to single collection thread */
#undef NUMBER_CORES
/* Define to 1 for online test features */
#undef ONLINE_TESTS_ENABLE
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the home page for this package. */
#undef PACKAGE_URL
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* Define to 1 for injection diagnostic */
#undef RAW_IN_ENABLE
/* Define to 1 for capture diagnostic */
#undef RAW_OUT_ENABLE
/* Define as the return type of signal handlers (`int' or `void'). */
#undef RETSIGTYPE
/* Define to the type of arg 1 for `select'. */
#undef SELECT_TYPE_ARG1
/* Define to the type of args 2, 3 and 4 for `select'. */
#undef SELECT_TYPE_ARG234
/* Define to the type of arg 5 for `select'. */
#undef SELECT_TYPE_ARG5
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
#undef TIME_WITH_SYS_TIME
/* Define to 1 to tune with host cpuid */
#undef TUNING_CPUID_ENABLE
/* Define to 1 to tune wiht host vfs */
#undef TUNING_VFS_ENABLE
/* Enable extensions on AIX 3, Interix. */
#ifndef _ALL_SOURCE
# undef _ALL_SOURCE
#endif
/* Enable GNU extensions on systems that have them. */
#ifndef _GNU_SOURCE
# undef _GNU_SOURCE
#endif
/* Enable threading extensions on Solaris. */
#ifndef _POSIX_PTHREAD_SEMANTICS
# undef _POSIX_PTHREAD_SEMANTICS
#endif
/* Enable extensions on HP NonStop. */
#ifndef _TANDEM_SOURCE
# undef _TANDEM_SOURCE
#endif
/* Enable general extensions on Solaris. */
#ifndef __EXTENSIONS__
# undef __EXTENSIONS__
#endif
/* Version number of package */
#undef VERSION
/* Define to 1 if on MINIX. */
#undef _MINIX
/* Define to 2 if the system does not provide POSIX.1 features except with
this defined. */
#undef _POSIX_1_SOURCE
/* Define to 1 if you need to in order for `stat' and other things to work. */
#undef _POSIX_SOURCE
/* Define to empty if `const' does not conform to ANSI C. */
#undef const

348
config/compile Executable file
View file

@ -0,0 +1,348 @@
#! /bin/sh
# Wrapper for compilers which do not understand '-c -o'.
scriptversion=2018-03-07.03; # UTC
# Copyright (C) 1999-2018 Free Software Foundation, Inc.
# Written by Tom Tromey <tromey@cygnus.com>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
nl='
'
# We need space, tab and new line, in precisely that order. Quoting is
# there to prevent tools from complaining about whitespace usage.
IFS=" "" $nl"
file_conv=
# func_file_conv build_file lazy
# Convert a $build file to $host form and store it in $file
# Currently only supports Windows hosts. If the determined conversion
# type is listed in (the comma separated) LAZY, no conversion will
# take place.
func_file_conv ()
{
file=$1
case $file in
/ | /[!/]*) # absolute file, and not a UNC file
if test -z "$file_conv"; then
# lazily determine how to convert abs files
case `uname -s` in
MINGW*)
file_conv=mingw
;;
CYGWIN*)
file_conv=cygwin
;;
*)
file_conv=wine
;;
esac
fi
case $file_conv/,$2, in
*,$file_conv,*)
;;
mingw/*)
file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
;;
cygwin/*)
file=`cygpath -m "$file" || echo "$file"`
;;
wine/*)
file=`winepath -w "$file" || echo "$file"`
;;
esac
;;
esac
}
# func_cl_dashL linkdir
# Make cl look for libraries in LINKDIR
func_cl_dashL ()
{
func_file_conv "$1"
if test -z "$lib_path"; then
lib_path=$file
else
lib_path="$lib_path;$file"
fi
linker_opts="$linker_opts -LIBPATH:$file"
}
# func_cl_dashl library
# Do a library search-path lookup for cl
func_cl_dashl ()
{
lib=$1
found=no
save_IFS=$IFS
IFS=';'
for dir in $lib_path $LIB
do
IFS=$save_IFS
if $shared && test -f "$dir/$lib.dll.lib"; then
found=yes
lib=$dir/$lib.dll.lib
break
fi
if test -f "$dir/$lib.lib"; then
found=yes
lib=$dir/$lib.lib
break
fi
if test -f "$dir/lib$lib.a"; then
found=yes
lib=$dir/lib$lib.a
break
fi
done
IFS=$save_IFS
if test "$found" != yes; then
lib=$lib.lib
fi
}
# func_cl_wrapper cl arg...
# Adjust compile command to suit cl
func_cl_wrapper ()
{
# Assume a capable shell
lib_path=
shared=:
linker_opts=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
eat=1
case $2 in
*.o | *.[oO][bB][jJ])
func_file_conv "$2"
set x "$@" -Fo"$file"
shift
;;
*)
func_file_conv "$2"
set x "$@" -Fe"$file"
shift
;;
esac
;;
-I)
eat=1
func_file_conv "$2" mingw
set x "$@" -I"$file"
shift
;;
-I*)
func_file_conv "${1#-I}" mingw
set x "$@" -I"$file"
shift
;;
-l)
eat=1
func_cl_dashl "$2"
set x "$@" "$lib"
shift
;;
-l*)
func_cl_dashl "${1#-l}"
set x "$@" "$lib"
shift
;;
-L)
eat=1
func_cl_dashL "$2"
;;
-L*)
func_cl_dashL "${1#-L}"
;;
-static)
shared=false
;;
-Wl,*)
arg=${1#-Wl,}
save_ifs="$IFS"; IFS=','
for flag in $arg; do
IFS="$save_ifs"
linker_opts="$linker_opts $flag"
done
IFS="$save_ifs"
;;
-Xlinker)
eat=1
linker_opts="$linker_opts $2"
;;
-*)
set x "$@" "$1"
shift
;;
*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
func_file_conv "$1"
set x "$@" -Tp"$file"
shift
;;
*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
func_file_conv "$1" mingw
set x "$@" "$file"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -n "$linker_opts"; then
linker_opts="-link$linker_opts"
fi
exec "$@" $linker_opts
exit 1
}
eat=
case $1 in
'')
echo "$0: No command. Try '$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: compile [--help] [--version] PROGRAM [ARGS]
Wrapper for compilers which do not understand '-c -o'.
Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
arguments, and rename the output as expected.
If you are trying to build a whole package this is not the
right script to run: please start by reading the file 'INSTALL'.
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "compile $scriptversion"
exit $?
;;
cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
func_cl_wrapper "$@" # Doesn't return...
;;
esac
ofile=
cfile=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
# So we strip '-o arg' only if arg is an object.
eat=1
case $2 in
*.o | *.obj)
ofile=$2
;;
*)
set x "$@" -o "$2"
shift
;;
esac
;;
*.c)
cfile=$1
set x "$@" "$1"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -z "$ofile" || test -z "$cfile"; then
# If no '-o' option was seen then we might have been invoked from a
# pattern rule where we don't need one. That is ok -- this is a
# normal compilation that the losing compiler can handle. If no
# '.c' file was seen then we are probably linking. That is also
# ok.
exec "$@"
fi
# Name of file we expect compiler to create.
cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
# Create the lock directory.
# Note: use '[/\\:.-]' here to ensure that we don't use the same name
# that we are using for the .o file. Also, base the name on the expected
# object file name, since that is what matters with a parallel build.
lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
while true; do
if mkdir "$lockdir" >/dev/null 2>&1; then
break
fi
sleep 1
done
# FIXME: race condition here if user kills between mkdir and trap.
trap "rmdir '$lockdir'; exit 1" 1 2 15
# Run the compile.
"$@"
ret=$?
if test -f "$cofile"; then
test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
elif test -f "${cofile}bj"; then
test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
fi
rmdir "$lockdir"
exit $ret
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'before-save-hook 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

1486
config/config.guess vendored Executable file
View file

File diff suppressed because it is too large Load diff

1790
config/config.sub vendored Executable file
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File diff suppressed because it is too large Load diff

518
config/install-sh Executable file
View file

@ -0,0 +1,518 @@
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2018-03-11.20; # UTC
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# 'make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.
tab=' '
nl='
'
IFS=" $tab$nl"
# Set DOITPROG to "echo" to test this script.
doit=${DOITPROG-}
doit_exec=${doit:-exec}
# Put in absolute file names if you don't have them in your path;
# or use environment vars.
chgrpprog=${CHGRPPROG-chgrp}
chmodprog=${CHMODPROG-chmod}
chownprog=${CHOWNPROG-chown}
cmpprog=${CMPPROG-cmp}
cpprog=${CPPROG-cp}
mkdirprog=${MKDIRPROG-mkdir}
mvprog=${MVPROG-mv}
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}
posix_mkdir=
# Desired mode of installed file.
mode=0755
chgrpcmd=
chmodcmd=$chmodprog
chowncmd=
mvcmd=$mvprog
rmcmd="$rmprog -f"
stripcmd=
src=
dst=
dir_arg=
dst_arg=
copy_on_change=false
is_target_a_directory=possibly
usage="\
Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
or: $0 [OPTION]... SRCFILES... DIRECTORY
or: $0 [OPTION]... -t DIRECTORY SRCFILES...
or: $0 [OPTION]... -d DIRECTORIES...
In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.
Options:
--help display this help and exit.
--version display version info and exit.
-c (ignored)
-C install only if different (preserve the last data modification time)
-d create directories instead of installing files.
-g GROUP $chgrpprog installed files to GROUP.
-m MODE $chmodprog installed files to MODE.
-o USER $chownprog installed files to USER.
-s $stripprog installed files.
-t DIRECTORY install into DIRECTORY.
-T report an error if DSTFILE is a directory.
Environment variables override the default commands:
CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
RMPROG STRIPPROG
"
while test $# -ne 0; do
case $1 in
-c) ;;
-C) copy_on_change=true;;
-d) dir_arg=true;;
-g) chgrpcmd="$chgrpprog $2"
shift;;
--help) echo "$usage"; exit $?;;
-m) mode=$2
case $mode in
*' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
echo "$0: invalid mode: $mode" >&2
exit 1;;
esac
shift;;
-o) chowncmd="$chownprog $2"
shift;;
-s) stripcmd=$stripprog;;
-t)
is_target_a_directory=always
dst_arg=$2
# Protect names problematic for 'test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
shift;;
-T) is_target_a_directory=never;;
--version) echo "$0 $scriptversion"; exit $?;;
--) shift
break;;
-*) echo "$0: invalid option: $1" >&2
exit 1;;
*) break;;
esac
shift
done
# We allow the use of options -d and -T together, by making -d
# take the precedence; this is for compatibility with GNU install.
if test -n "$dir_arg"; then
if test -n "$dst_arg"; then
echo "$0: target directory not allowed when installing a directory." >&2
exit 1
fi
fi
if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
# When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
# Otherwise, the last argument is the destination. Remove it from $@.
for arg
do
if test -n "$dst_arg"; then
# $@ is not empty: it contains at least $arg.
set fnord "$@" "$dst_arg"
shift # fnord
fi
shift # arg
dst_arg=$arg
# Protect names problematic for 'test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
done
fi
if test $# -eq 0; then
if test -z "$dir_arg"; then
echo "$0: no input file specified." >&2
exit 1
fi
# It's OK to call 'install-sh -d' without argument.
# This can happen when creating conditional directories.
exit 0
fi
if test -z "$dir_arg"; then
if test $# -gt 1 || test "$is_target_a_directory" = always; then
if test ! -d "$dst_arg"; then
echo "$0: $dst_arg: Is not a directory." >&2
exit 1
fi
fi
fi
if test -z "$dir_arg"; then
do_exit='(exit $ret); exit $ret'
trap "ret=129; $do_exit" 1
trap "ret=130; $do_exit" 2
trap "ret=141; $do_exit" 13
trap "ret=143; $do_exit" 15
# Set umask so as not to create temps with too-generous modes.
# However, 'strip' requires both read and write access to temps.
case $mode in
# Optimize common cases.
*644) cp_umask=133;;
*755) cp_umask=22;;
*[0-7])
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw='% 200'
fi
cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
*)
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw=,u+rw
fi
cp_umask=$mode$u_plus_rw;;
esac
fi
for src
do
# Protect names problematic for 'test' and other utilities.
case $src in
-* | [=\(\)!]) src=./$src;;
esac
if test -n "$dir_arg"; then
dst=$src
dstdir=$dst
test -d "$dstdir"
dstdir_status=$?
else
# Waiting for this to be detected by the "$cpprog $src $dsttmp" command
# might cause directories to be created, which would be especially bad
# if $src (and thus $dsttmp) contains '*'.
if test ! -f "$src" && test ! -d "$src"; then
echo "$0: $src does not exist." >&2
exit 1
fi
if test -z "$dst_arg"; then
echo "$0: no destination specified." >&2
exit 1
fi
dst=$dst_arg
# If destination is a directory, append the input filename.
if test -d "$dst"; then
if test "$is_target_a_directory" = never; then
echo "$0: $dst_arg: Is a directory" >&2
exit 1
fi
dstdir=$dst
dstbase=`basename "$src"`
case $dst in
*/) dst=$dst$dstbase;;
*) dst=$dst/$dstbase;;
esac
dstdir_status=0
else
dstdir=`dirname "$dst"`
test -d "$dstdir"
dstdir_status=$?
fi
fi
case $dstdir in
*/) dstdirslash=$dstdir;;
*) dstdirslash=$dstdir/;;
esac
obsolete_mkdir_used=false
if test $dstdir_status != 0; then
case $posix_mkdir in
'')
# Create intermediate dirs using mode 755 as modified by the umask.
# This is like FreeBSD 'install' as of 1997-10-28.
umask=`umask`
case $stripcmd.$umask in
# Optimize common cases.
*[2367][2367]) mkdir_umask=$umask;;
.*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
*[0-7])
mkdir_umask=`expr $umask + 22 \
- $umask % 100 % 40 + $umask % 20 \
- $umask % 10 % 4 + $umask % 2
`;;
*) mkdir_umask=$umask,go-w;;
esac
# With -d, create the new directory with the user-specified mode.
# Otherwise, rely on $mkdir_umask.
if test -n "$dir_arg"; then
mkdir_mode=-m$mode
else
mkdir_mode=
fi
posix_mkdir=false
case $umask in
*[123567][0-7][0-7])
# POSIX mkdir -p sets u+wx bits regardless of umask, which
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
# Note that $RANDOM variable is not portable (e.g. dash); Use it
# here however when possible just to lower collision chance.
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
# Because "mkdir -p" follows existing symlinks and we likely work
# directly in world-writeable /tmp, make sure that the '$tmpdir'
# directory is successfully created first before we actually test
# 'mkdir -p' feature.
if (umask $mkdir_umask &&
$mkdirprog $mkdir_mode "$tmpdir" &&
exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
then
if test -z "$dir_arg" || {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
# other-writable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
test_tmpdir="$tmpdir/a"
ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
case $ls_ld_tmpdir in
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*) false;;
esac &&
$mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
fi
trap '' 0;;
esac;;
esac
if
$posix_mkdir && (
umask $mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
)
then :
else
# The umask is ridiculous, or mkdir does not conform to POSIX,
# or it failed possibly due to a race condition. Create the
# directory the slow way, step by step, checking for races as we go.
case $dstdir in
/*) prefix='/';;
[-=\(\)!]*) prefix='./';;
*) prefix='';;
esac
oIFS=$IFS
IFS=/
set -f
set fnord $dstdir
shift
set +f
IFS=$oIFS
prefixes=
for d
do
test X"$d" = X && continue
prefix=$prefix$d
if test -d "$prefix"; then
prefixes=
else
if $posix_mkdir; then
(umask=$mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
# Don't fail if two instances are running concurrently.
test -d "$prefix" || exit 1
else
case $prefix in
*\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
*) qprefix=$prefix;;
esac
prefixes="$prefixes '$qprefix'"
fi
fi
prefix=$prefix/
done
if test -n "$prefixes"; then
# Don't fail if two instances are running concurrently.
(umask $mkdir_umask &&
eval "\$doit_exec \$mkdirprog $prefixes") ||
test -d "$dstdir" || exit 1
obsolete_mkdir_used=true
fi
fi
fi
if test -n "$dir_arg"; then
{ test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
{ test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
else
# Make a couple of temp file names in the proper directory.
dsttmp=${dstdirslash}_inst.$$_
rmtmp=${dstdirslash}_rm.$$_
# Trap to clean up those temp files at exit.
trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
# Copy the file name to the temp name.
(umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
# and set any options; do chmod last to preserve setuid bits.
#
# If any of these fail, we abort the whole thing. If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $cpprog $src $dsttmp" command.
#
{ test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
{ test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
{ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
# If -C, don't bother to copy if it wouldn't change the file.
if $copy_on_change &&
old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
set -f &&
set X $old && old=:$2:$4:$5:$6 &&
set X $new && new=:$2:$4:$5:$6 &&
set +f &&
test "$old" = "$new" &&
$cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
then
rm -f "$dsttmp"
else
# Rename the file to the real destination.
$doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
# The rename failed, perhaps because mv can't rename something else
# to itself, or perhaps because mv is so ancient that it does not
# support -f.
{
# Now remove or move aside any old file at destination location.
# We try this two ways since rm can't unlink itself on some
# systems and the destination file might be busy for other
# reasons. In this case, the final cleanup might fail but the new
# file should still install successfully.
{
test ! -f "$dst" ||
$doit $rmcmd -f "$dst" 2>/dev/null ||
{ $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
{ $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
} ||
{ echo "$0: cannot unlink or rename $dst" >&2
(exit 1); exit 1
}
} &&
# Now rename the file to the real destination.
$doit $mvcmd "$dsttmp" "$dst"
}
fi || exit 1
trap '' 0
fi
done
# Local variables:
# eval: (add-hook 'before-save-hook 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

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215
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#! /bin/sh
# Common wrapper for a few potentially missing GNU programs.
scriptversion=2018-03-07.03; # UTC
# Copyright (C) 1996-2018 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
if test $# -eq 0; then
echo 1>&2 "Try '$0 --help' for more information"
exit 1
fi
case $1 in
--is-lightweight)
# Used by our autoconf macros to check whether the available missing
# script is modern enough.
exit 0
;;
--run)
# Back-compat with the calling convention used by older automake.
shift
;;
-h|--h|--he|--hel|--help)
echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
to PROGRAM being missing or too old.
Options:
-h, --help display this help and exit
-v, --version output version information and exit
Supported PROGRAM values:
aclocal autoconf autoheader autom4te automake makeinfo
bison yacc flex lex help2man
Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
'g' are ignored when checking the name.
Send bug reports to <bug-automake@gnu.org>."
exit $?
;;
-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
echo "missing $scriptversion (GNU Automake)"
exit $?
;;
-*)
echo 1>&2 "$0: unknown '$1' option"
echo 1>&2 "Try '$0 --help' for more information"
exit 1
;;
esac
# Run the given program, remember its exit status.
"$@"; st=$?
# If it succeeded, we are done.
test $st -eq 0 && exit 0
# Also exit now if we it failed (or wasn't found), and '--version' was
# passed; such an option is passed most likely to detect whether the
# program is present and works.
case $2 in --version|--help) exit $st;; esac
# Exit code 63 means version mismatch. This often happens when the user
# tries to use an ancient version of a tool on a file that requires a
# minimum version.
if test $st -eq 63; then
msg="probably too old"
elif test $st -eq 127; then
# Program was missing.
msg="missing on your system"
else
# Program was found and executed, but failed. Give up.
exit $st
fi
perl_URL=https://www.perl.org/
flex_URL=https://github.com/westes/flex
gnu_software_URL=https://www.gnu.org/software
program_details ()
{
case $1 in
aclocal|automake)
echo "The '$1' program is part of the GNU Automake package:"
echo "<$gnu_software_URL/automake>"
echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
echo "<$gnu_software_URL/autoconf>"
echo "<$gnu_software_URL/m4/>"
echo "<$perl_URL>"
;;
autoconf|autom4te|autoheader)
echo "The '$1' program is part of the GNU Autoconf package:"
echo "<$gnu_software_URL/autoconf/>"
echo "It also requires GNU m4 and Perl in order to run:"
echo "<$gnu_software_URL/m4/>"
echo "<$perl_URL>"
;;
esac
}
give_advice ()
{
# Normalize program name to check for.
normalized_program=`echo "$1" | sed '
s/^gnu-//; t
s/^gnu//; t
s/^g//; t'`
printf '%s\n' "'$1' is $msg."
configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
case $normalized_program in
autoconf*)
echo "You should only need it if you modified 'configure.ac',"
echo "or m4 files included by it."
program_details 'autoconf'
;;
autoheader*)
echo "You should only need it if you modified 'acconfig.h' or"
echo "$configure_deps."
program_details 'autoheader'
;;
automake*)
echo "You should only need it if you modified 'Makefile.am' or"
echo "$configure_deps."
program_details 'automake'
;;
aclocal*)
echo "You should only need it if you modified 'acinclude.m4' or"
echo "$configure_deps."
program_details 'aclocal'
;;
autom4te*)
echo "You might have modified some maintainer files that require"
echo "the 'autom4te' program to be rebuilt."
program_details 'autom4te'
;;
bison*|yacc*)
echo "You should only need it if you modified a '.y' file."
echo "You may want to install the GNU Bison package:"
echo "<$gnu_software_URL/bison/>"
;;
lex*|flex*)
echo "You should only need it if you modified a '.l' file."
echo "You may want to install the Fast Lexical Analyzer package:"
echo "<$flex_URL>"
;;
help2man*)
echo "You should only need it if you modified a dependency" \
"of a man page."
echo "You may want to install the GNU Help2man package:"
echo "<$gnu_software_URL/help2man/>"
;;
makeinfo*)
echo "You should only need it if you modified a '.texi' file, or"
echo "any other file indirectly affecting the aspect of the manual."
echo "You might want to install the Texinfo package:"
echo "<$gnu_software_URL/texinfo/>"
echo "The spurious makeinfo call might also be the consequence of"
echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
echo "want to install GNU make:"
echo "<$gnu_software_URL/make/>"
;;
*)
echo "You might have modified some files without having the proper"
echo "tools for further handling them. Check the 'README' file, it"
echo "often tells you about the needed prerequisites for installing"
echo "this package. You may also peek at any GNU archive site, in"
echo "case some other package contains this missing '$1' program."
;;
esac
}
give_advice "$1" | sed -e '1s/^/WARNING: /' \
-e '2,$s/^/ /' >&2
# Propagate the correct exit status (expected to be 127 for a program
# not found, 63 for a program that failed due to version mismatch).
exit $st
# Local variables:
# eval: (add-hook 'before-save-hook 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

15653
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262
configure.ac Normal file
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@ -0,0 +1,262 @@
## Process this file with autoconf to produce a configure script.
## Minimum Autoconf version
AC_PREREQ([2.59])
AC_INIT([haveged],[1.9.14])
AC_CONFIG_AUX_DIR(config)
AC_USE_SYSTEM_EXTENSIONS
AC_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE([subdir-objects no-dependencies])
AC_CONFIG_SRCDIR([src/haveged.c])
AC_CHECK_TYPES([uint32_t, uint8_t])
HA_LDFLAGS=""
##libtool_start##
LT_INIT
AC_PROG_LIBTOOL
AM_ENABLE_SHARED
AM_DISABLE_STATIC
LT_LANG([C])
HAVEGE_LT_VERSION="2:0:0"
AC_SUBST(HAVEGE_LT_VERSION)
AC_DEFINE_UNQUOTED(HAVEGE_LIB_VERSION, "$HAVEGE_LT_VERSION", [Library version])
##libtool_end##
## Make clock_gettime configurable
AC_ARG_ENABLE(clock_gettime,
AS_HELP_STRING([--enable-clock_gettime=[no/yes]],[Enable clock_gettime [default=yes if no rdtsc]]),
, enable_clock_gettime="x")
## Make build w/o daemon interface configurable
AC_ARG_ENABLE(daemon,
AS_HELP_STRING([--enable-daemon=[yes/no]],[Enable daemon [default=yes if linux]]),
, enable_daemon="x" )
## Make diagnostic modes configurable
AC_ARG_ENABLE(diagnostic,
AS_HELP_STRING([--enable-diagnostic=[no/capture/inject/yes]],[Enable diagnostic mode [default=no]]),
, enable_diagnostic="no")
if test "x$enable_diagnostic" = "xyes"; then
AC_DEFINE(RAW_OUT_ENABLE, 1, [Define to 1 for capture diagnostic])
AC_DEFINE(RAW_IN_ENABLE, 1, [Define to 1 for injection diagnostic])
enable_daemon="no";
elif test "x$enable_diagnostic" = "xcapture"; then
AC_DEFINE(RAW_OUT_ENABLE, 1, [Define to 1 for capture diagnostic])
enable_daemon="no";
elif test "x$enable_diagnostic" = "xinject"; then
AC_DEFINE(RAW_IN_ENABLE, 1, [Define to 1 for injection diagnostic])
enable_daemon="no";
fi
## Make init configurable
AC_ARG_ENABLE(init,
AS_HELP_STRING([--enable-init=[type]],[Enable service.* or sysv.* template [default=no]]),
, enable_init="no" )
AC_ARG_ENABLE(initdir,
AS_HELP_STRING([--enable-initdir=DIR], [Directory for systemd service files [default=pkg-config var if init==service.*]]),
, enable_initdir="?")
## Make nist self-test configurable
AC_ARG_ENABLE(nistest,
AS_HELP_STRING([--enable-nistest=[no/yes]],[Run NIST test suite [default=no]]),
, enable_nistest="no")
## Make ent self-test configurable
AC_ARG_ENABLE(enttest,
AS_HELP_STRING([--enable-enttest=[no/yes]],[Run ENT test suite [default=yes]]),
, enable_enttest="yes")
## Make self test features configurable
AC_ARG_ENABLE(olt,
AS_HELP_STRING([--enable-olt=[yes/no]],[Enable online tests [default=yes]]),
, enable_olt="yes" )
if test "x$enable_olt" = "xyes"; then
AC_DEFINE(ONLINE_TESTS_ENABLE, 1, [Define to 1 for online test features])
fi
## Make multi-thread feature configurable
AC_ARG_ENABLE(threads,
AS_HELP_STRING([--enable-threads=[no/yes]],[Enable threads [default=no]]),
, enable_threads="no")
if test "x$enable_threads" = "xyes"; then
AC_DEFINE(NUMBER_CORES, 4, [Define maxium number of collection threads])
HA_LDFLAGS="-pthread"
else
AC_DEFINE(NUMBER_CORES, 1, [Define to single collection thread])
fi
## Make tuning features configurable
AC_ARG_ENABLE(tune,
AS_HELP_STRING([--enable-tune=[yes/cpuid/vfs/no]],[Enable host tune methods [default=yes]]),
, enable_tune="yes" )
if test "x$enable_tune" = "xyes"; then
AC_DEFINE(TUNING_CPUID_ENABLE, 1, [Define to 1 to tune with host cpuid])
AC_DEFINE(TUNING_VFS_ENABLE, 1, [Define to 1 to tune with host vfs])
elif test "x$enable_tune" = "xcpuid"; then
AC_DEFINE(TUNING_CPUID_ENABLE, 1, [Define to 1 to tune with host cpuid])
elif test "x$enable_tune" = "xvfs"; then
AC_DEFINE(TUNING_VFS_ENABLE, 1, [Define to 1 to tune wiht host vfs])
fi
## Checks for programs.
AC_PROG_CC([gcc])
## Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_HEADER_TIME
## Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_CHECK_FUNCS([__rdtsc accept accept4 bind connect execv floor getsockopt gettimeofday listen memset pow pselect recv sched_yield select send setsockopt socket sqrt])
## Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h)
AC_CHECK_HEADERS(limits.h)
AC_CHECK_HEADERS(sched.h)
AC_CHECK_HEADERS(semaphore.h)
AC_CHECK_HEADERS(stdarg.h)
AC_CHECK_HEADERS(stddef.h)
AC_CHECK_HEADERS(stdint.h)
AC_CHECK_HEADERS(stdio.h)
AC_CHECK_HEADERS(stdlib.h)
AC_CHECK_HEADERS(string.h)
AC_CHECK_HEADERS(sys/ioctl.h)
AC_CHECK_HEADERS(sys/mman.h)
AC_CHECK_HEADERS(sys/types.h)
AC_CHECK_HEADERS(sys/socket.h)
AC_CHECK_HEADERS(sys/un.h)
AC_CHECK_HEADERS(sys/wait.h)
AC_CHECK_HEADERS(time.h)
AC_CHECK_HEADERS(sys/time.h)
AC_CHECK_HEADERS(unistd.h)
AC_CHECK_HEADERS(cpuid.h)
AC_CHECK_HEADERS(x86intrin.h)
AC_CHECK_HEADERS(syslog.h)
AC_CHECK_HEADERS(linux/random.h)
AH_TEMPLATE([HAVE_STRUCT_UCRED],[User visible structure for SCM_CREDENTIALS message])
AC_TRY_LINK([#include <sys/socket.h>],
[struct ucred cred; cred.pid=0;],[AC_DEFINE([HAVE_STRUCT_UCRED],[1],[User visible structure for SCM_CREDENTIALS message])])
AC_CANONICAL_HOST
## Determine if daemon interface to be included
if test "x$enable_daemon" = "xyes"; then
daemon_type="yes"
elif test "x$enable_daemon" = "xno"; then
daemon_type="none"
else
case "$host_os" in
linux*)
daemon_type="yes"
;;
*)
daemon_type="none"
;;
esac
fi
## Match host to havegedef macros
case "$host" in
x86_64-*)
AC_DEFINE(HAVE_ISA_X86, 1, [Define to 1 for x86_64])
;;
i*86*-*)
AC_DEFINE(HAVE_ISA_X86, 1, [Define to 1 for x86])
;;
ia64-*)
AC_DEFINE(HAVE_ISA_IA64, 1, [Define to 1 for ia64])
;;
powerpc-*|pcc-*|powerpc64-*|ppc64-*)
AC_DEFINE(HAVE_ISA_PPC, 1, [Define to 1 for ppc])
;;
s390*-*)
AC_DEFINE(HAVE_ISA_S390, 1, [Define to 1 for s390])
;;
sparclite*-*)
AC_DEFINE(HAVE_ISA_SPARCLITE, 1, [Define to 1 for sparclite])
;;
sparc*-*)
AC_DEFINE(HAVE_ISA_SPARC, 1, [Define to 1 for sparc])
;;
*)
if test "x$enable_clock_gettime" = "xx"; then
enable_clock_gettime="yes"
elif test "x$enable_clock_gettime" = "xyes"; then
enable_clock_gettime="yes"
else
AC_MSG_ERROR([no timer source for host :"$host".])
fi
AC_DEFINE_UNQUOTED(HAVE_ISA_GENERIC, "$host", [Define generic host])
;;
esac
## Check clock_gettime option
if test "x$enable_clock_gettime" = "xyes"; then
saved_libs=$LIBS
LIB_CLOCK_GETTIME=
AC_SEARCH_LIBS([clock_gettime], [rt posix4],
[test "$ac_cv_search_clock_gettime" = "none required" || LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime],
AC_MSG_ERROR([clock_gettime is required for host :"$host".]))
LIBS=$saved_libs
HA_LDFLAGS="$HA_LDFLAGS $LIB_CLOCK_GETTIME"
AC_DEFINE(ENABLE_CLOCK_GETTIME, 1, [Define to 1 for clock_gettime])
fi
## Determine init type
if test "$daemon_type" = "none"; then
AC_DEFINE(NO_DAEMON, 1, [Define to 1 to suppress daemon interface])
init_type="none"
else
case "$enable_init" in
service.*)
init_type="systemd"
;;
sysv.*)
init_type="sysv"
;;
*)
init_type="none"
;;
esac
fi
## Fixup install and test options
AC_SUBST(HA_DISTRO,$enable_init)
AC_SUBST(HA_UNITD,$enable_initdir)
AM_CONDITIONAL(ENABLE_BIN, test "$daemon_type" = "none")
AM_CONDITIONAL(ENABLE_SYSV, test "$init_type" = "sysv")
AM_CONDITIONAL(ENABLE_SYSTEMD, test "$init_type" = "systemd")
AM_CONDITIONAL(ENABLE_SYSTEMD_LOOKUP, test "$enable_initdir" = "?")
AM_CONDITIONAL(ENABLE_NOINIT, test "$init_type" = "none")
AM_CONDITIONAL(ENABLE_ENT_TEST, test "$enable_enttest" = "yes")
AM_CONDITIONAL(ENABLE_NIST_TEST, test "$enable_nistest" = "yes")
## Set hardware dependent define for the build
AC_SUBST(HA_LDFLAGS)
AC_CONFIG_FILES([Makefile
src/Makefile
man/Makefile
init.d/Makefile
ent/Makefile
nist/Makefile])
AC_OUTPUT

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# Start the haveged service as soon as the random device is available
# to avoid starting other services while starved of entropy
ACTION=="add", KERNEL=="random" , SUBSYSTEM=="mem", TAG+="systemd", ENV{SYSTEMD_WANTS}+="haveged.service"

26
contrib/Fedora/haveged-dracut.module Executable file
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#!/bin/bash
# /usr/lib/dracut/modules.d/98haveged/module-setup.sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
# called by dracut
depends() {
return 0
}
installkernel() {
return 0
}
# called by dracut
install() {
inst_multiple -o \
/usr/sbin/haveged \
$systemdsystemunitdir/haveged.service \
$systemdsystemunitdir/haveged-switch-root.service
mkdir -p "$initdir/$systemdsystemunitdir/sysinit.target.wants"
mkdir -p "$initdir/$systemdsystemunitdir/initrd-switch-root.target.wants"
mkdir -p "$initdir/$systemdsystemunitdir/systemd-journald.service.wants"
ln_r "$systemdsystemunitdir/haveged.service" "$systemdsystemunitdir/systemd-journald.service.wants/haveged.service"
ln_r "$systemdsystemunitdir/haveged-switch-root.service" "$systemdsystemunitdir/initrd-switch-root.target.wants/haveged-switch-root.service"
}

17
contrib/Fedora/haveged-switch-root.service Normal file
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[Unit]
Description=Tell haveged about new root
DefaultDependencies=no
ConditionPathExists=/etc/initrd-release
Before=initrd-switch-root.service
JoinsNamespaceOf=haveged.service
[Service]
ExecStart=-@SBIN_DIR@/haveged -c root=/sysroot
PrivateNetwork=yes
Type=oneshot
StandardInput=null
StandardOutput=null
StandardError=null
[Install]
WantedBy=initrd-switch-root.target

36
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[Unit]
Description=Entropy Daemon based on the HAVEGE algorithm
Documentation=man:haveged(8) http://www.issihosts.com/haveged/
DefaultDependencies=no
After=systemd-tmpfiles-setup-dev.service
Before=sysinit.target shutdown.target systemd-journald.service
[Service]
ExecStart=@SBIN_DIR@/haveged -w 1024 -v 1 --Foreground
Restart=always
SuccessExitStatus=137 143
SecureBits=noroot-locked
CapabilityBoundingSet=CAP_SYS_ADMIN CAP_SYS_CHROOT
# We can *not* set PrivateTmp=true as it can cause an ordering cycle.
PrivateTmp=false
PrivateDevices=true
# We can *not* set PrivateNetwork=true to allow command mode (chroot when included in initramfs)
#PrivateNetwork=true
ProtectSystem=full
ProtectHome=true
ProtectHostname=true
ProtectKernelLogs=true
ProtectKernelModules=true
RestrictNamespaces=true
RestrictRealtime=true
LockPersonality=true
MemoryDenyWriteExecute=true
SystemCallArchitectures=native
SystemCallFilter=@system-service
SystemCallFilter=~@mount
SystemCallErrorNumber=EPERM
[Install]
WantedBy=sysinit.target

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%define dracutlibdir lib/dracut
Summary: A Linux entropy source using the HAVEGE algorithm
Name: haveged
Version: 1.9.14
Release: 1%{?dist}
License: GPLv3+
URL: https://github.com/jirka-h/haveged
Source0: https://github.com/jirka-h/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
Requires(post): systemd
Requires(preun): systemd
Requires(postun): systemd
BuildRequires: gcc
BuildRequires: automake coreutils glibc-common systemd-units
Enhances: apache2 gpg2 openssl openvpn php5 smtp_daemon systemd
%description
A Linux entropy source using the HAVEGE algorithm
Haveged is a user space entropy daemon which is not dependent upon the
standard mechanisms for harvesting randomness for the system entropy
pool. This is important in systems with high entropy needs or limited
user interaction (e.g. headless servers).
Haveged uses HAVEGE (HArdware Volatile Entropy Gathering and Expansion)
to maintain a 1M pool of random bytes used to fill /dev/random
whenever the supply of random bits in /dev/random falls below the low
water mark of the device. The principle inputs to haveged are the
sizes of the processor instruction and data caches used to setup the
HAVEGE collector. The haveged default is a 4kb data cache and a 16kb
instruction cache. On machines with a cpuid instruction, haveged will
attempt to select appropriate values from internal tables.
%package devel
Summary: Headers and shared development libraries for HAVEGE algorithm
Requires: %{name} = %{version}-%{release}
%description devel
Headers and shared object symbolic links for the HAVEGE algorithm
%prep
%setup -q
%build
#autoreconf -fiv
%configure --disable-enttest --enable-nistest --disable-static
#SMP build is not working
#make %{?_smp_mflags}
make
%check
make check
%install
rm -rf %{buildroot}
make install DESTDIR=%{buildroot} INSTALL="install -p"
chmod 0644 COPYING README ChangeLog AUTHORS
#Install systemd service file
sed -e 's:@SBIN_DIR@:%{_sbindir}:g' -i contrib/Fedora/*service
install -Dpm 0644 contrib/Fedora/haveged.service %{buildroot}%{_unitdir}/%{name}.service
install -Dpm 0644 contrib/Fedora/haveged-switch-root.service %{buildroot}%{_unitdir}/%{name}-switch-root.service
install -Dpm 0755 contrib/Fedora/haveged-dracut.module %{buildroot}/%{_prefix}/%{dracutlibdir}/modules.d/98%{name}/module-setup.sh
install -Dpm 0644 contrib/Fedora/90-haveged.rules %{buildroot}%{_udevrulesdir}/90-%{name}.rules
# We don't ship .la files.
rm -rf %{buildroot}%{_libdir}/libhavege.*a
mkdir -p %{buildroot}%{_defaultdocdir}/%{name}
cp -p COPYING README ChangeLog AUTHORS contrib/build/havege_sample.c %{buildroot}%{_defaultdocdir}/%{name}
%post
/sbin/ldconfig
%systemd_post %{name}.service %{name}-switch-root.service
%preun
%systemd_preun %{name}.service %{name}-switch-root.service
%postun
%systemd_postun_with_restart %{name}.service %{name}-switch-root.service
/sbin/ldconfig
%files
%{_mandir}/man8/haveged.8*
%{_sbindir}/haveged
%{_unitdir}/*.service
%{_libdir}/*so.*
%{_defaultdocdir}/*
%{_udevrulesdir}/*-%{name}.rules
%dir %{_prefix}/%{dracutlibdir}/modules.d/98%{name}
%{_prefix}/%{dracutlibdir}/modules.d/98%{name}/*
%files devel
%{_mandir}/man3/libhavege.3*
%dir %{_includedir}/%{name}
%{_includedir}/%{name}/havege.h
%doc contrib/build/havege_sample.c
%{_libdir}/*.so
%changelog
* Sun Jun 28 2020 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.14-1
- Update to 1.9.14
- BZ1835006 - Added dracut module
- Start the service as soon as the random device is available with
the help of udev, as starting services while starved of entropy
is no good.
* Sun Jun 28 2020 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.13-1
- Update to 1.9.13
* Thu Jun 18 2020 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.12-1
- Update to 1.9.12
* Fri Jun 12 2020 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.11-1
- Update to 1.9.11
* Thu Jun 11 2020 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.10-1
- Update to 1.9.10
* Thu Jun 11 2020 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.9-2
- Fixed haveged.service file
* Tue Jun 09 2020 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.9-1
- Update to 1.9.9
* Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.8-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
* Mon Sep 30 2019 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.8-1
- Update to 1.9.8
* Mon Aug 26 2019 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.6-1
- Update to 1.9.6
* Thu Jul 25 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-12
- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Fri Feb 01 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-11
- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
* Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-10
- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
* Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-9
- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
* Wed Aug 02 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-8
- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild
* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-7
- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-6
- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
* Wed Feb 03 2016 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-5
- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
* Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.9.1-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
* Sat Aug 16 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.9.1-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild
* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.9.1-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
* Thu Feb 13 2014 Jirka Hladky <hladky.jiri@gmail.com> - 1.9.1-1
- Update to 1.9.1
* Sat Jan 04 2014 Jirka Hladky <hladky.jiri@gmail.com> - 1.8-1
- Unversioned docdir change, more info on
https://fedoraproject.org/wiki/Changes/UnversionedDocdirs
* Fri Jan 03 2014 Jirka Hladky <hladky.jiri@gmail.com> - 1.8-0
- Updated to the version 1.8
- Improvement to systemd service file
- Fixed exit status
* Sat Aug 03 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.7-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
* Thu Feb 14 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.7-1
- Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
* Sat Jan 19 2013 Jirka Hladky <hladky.jiri@gmail.com> - 1.7-0
- Updated to the version 1.7
- Version 1.7 brings developement libraries
- Added devel package
* Sat Oct 13 2012 Jirka Hladky <hladky.jiri@gmail.com> - 1.5-2
- BZ 850144
- Introduce new systemd-rpm macros in haveged spec file
- Fedora 19 changes the way how to work with services in spec files.
- It introduces new macros - systemd_post, systemd_preun and systemd_postun;
- which replace scriptlets from Fedora 18 and older
- see https://fedoraproject.org/wiki/Packaging:ScriptletSnippets#Systemd
* Tue Aug 14 2012 Jirka Hladky <hladky.jiri@gmail.com> - 1.5-1
- Update to the version 1.5
- Main new feature is a run time verification of the produced random numbers
- PIDFILE set to /run/haveged.pid
- converted README and man page to UTF-8. Informed the upstream to fix it.
* Wed Feb 15 2012 Jirka Hladky <hladky.jiri@gmail.com> - 1.4-3
- PIDFile should be stored at /run instead of the default location /var/run
- There is long term plan that directory /var/run will not further exist in the future Fedora versions
- Asked upstream to add -p <PID_FILE_location> switch to influence the location of the PID File
- Set PIDFile=/var/run/haveged.pid This is needed as long -p option is not implemented
- https://bugzilla.redhat.com/show_bug.cgi?id=770306#c10
* Wed Feb 15 2012 Jirka Hladky <hladky.jiri@gmail.com> - 1.4-2
- Updated systemd service file, https://bugzilla.redhat.com/show_bug.cgi?id=770306
* Tue Feb 14 2012 Jirka Hladky <hladky.jiri@gmail.com> - 1.4-1
- Update to the version 1.4
- Conversion to systemd, drop init script
* Sun Nov 06 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.3-2
- Fixed a bug on non x86 systems
* Sat Nov 05 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.3-1
- update from the upstream (1.3 stable)
* Mon Oct 03 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.3-0
-version 1.3 beta
* Fri Sep 30 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.2-4
- ppc64 build
* Mon Sep 26 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.2-3
- Cleaned spec file according to https://bugzilla.redhat.com/show_bug.cgi?id=739347#c11
* Sat Sep 24 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.2-2
- Added comment to explain why we need use Fedora specific start script
* Wed Sep 21 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.2-1
- Cleaned spec file according to https://bugzilla.redhat.com/show_bug.cgi?id=739347#c1
* Wed Sep 07 2011 Jirka Hladky <hladky.jiri@gmail.com> - 1.2-0
- Initial build

5
contrib/SUSE/90-haveged.rules Normal file
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# Start the haveged service as soon as the random device is available
# to avoid starting other services while starved of entropy
ACTION=="add", KERNEL=="random" , SUBSYSTEM=="mem", TAG+="systemd", ENV{SYSTEMD_WANTS}+="haveged.service"

26
contrib/SUSE/haveged-dracut.module Executable file
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#!/bin/bash
# /usr/lib/dracut/modules.d/98haveged/module-setup.sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
# called by dracut
depends() {
return 0
}
installkernel() {
return 0
}
# called by dracut
install() {
inst_multiple -o \
/usr/sbin/haveged \
$systemdsystemunitdir/haveged.service \
$systemdsystemunitdir/haveged-switch-root.service
mkdir -p "$initdir/$systemdsystemunitdir/sysinit.target.wants"
mkdir -p "$initdir/$systemdsystemunitdir/initrd-switch-root.target.wants"
mkdir -p "$initdir/$systemdsystemunitdir/systemd-journald.service.wants"
ln_r "$systemdsystemunitdir/haveged.service" "$systemdsystemunitdir/systemd-journald.service.wants/haveged.service"
ln_r "$systemdsystemunitdir/haveged-switch-root.service" "$systemdsystemunitdir/initrd-switch-root.target.wants/haveged-switch-root.service"
}

17
contrib/SUSE/haveged-switch-root.service Normal file
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@ -0,0 +1,17 @@
[Unit]
Description=Tell haveged about new root
DefaultDependencies=no
ConditionPathExists=/etc/initrd-release
Before=initrd-switch-root.service
JoinsNamespaceOf=haveged.service
[Service]
ExecStart=-/usr/sbin/haveged -c root=/sysroot
PrivateNetwork=yes
Type=oneshot
StandardInput=null
StandardOutput=null
StandardError=null
[Install]
WantedBy=initrd-switch-root.target

38
contrib/build/build.sh Executable file
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@ -0,0 +1,38 @@
#!/bin/sh
##
## Toggle between library and non-library builds. Fix messed up libtool environment
## Build and run haveged-devel sample
##
case "$1" in
nolib)
sed -i.bak -e '/^##libtool_start##/,/^##libtool_end##/s,^,##,g' ../../configure.ac
sed -i.bak -e '/^####nolibtool_start##/,/^####nolibtool_end##/s,^##,,g' \
-e '/^##libtool_start##/,/^##libtool_end##/s,^,##,g' ../../src/Makefile.am
cp nolib.spec ../../haveged.spec
;;
lib)
sed -i.bak -e '/^####libtool_start##/,/^####libtool_end##/s,^##,,g' ../../configure.ac
sed -i.bak -e '/^##nolibtool_start##/,/^##nolibtool_end##/s,^,##,g' \
-e '/^####libtool_start##/,/^####libtool_end##/s,^##,,g' ../../src/Makefile.am
cp lib.spec ../../haveged.spec
;;
new)
cd ../..
make distclean
rm -rf autom4te.cache
libtoolize --force --install
autoreconf --force
./configure
;;
sample)
echo "gcc -o havege_sample -DUSE_SOURCE -I../../src -Wall havege_sample.c ../../src/.libs/libhavege.a"
gcc -o havege_sample -DUSE_SOURCE -I../../src -Wall havege_sample.c ../../src/.libs/libhavege.a
echo "./havege_sample > /dev/null"
./havege_sample > /dev/null
;;
*)
echo "usage: build [new|nolib|lib|sample]";
;;
esac

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/*
Simple test of build - writes 1k of RNG runs to stdout
gcc -o havege_sample -DUSE_SOURCE -I../../src -Wall havege_sample.c ../../src/.libs/libhavege.a
./havege_sample > /dev/null
After package is installed into test RAM disk /dev/shm/1
gcc -Wall -o havege_sample -I/dev/shm/1/include -L/dev/shm/1/lib havege_sample.c -lhavege
LD_LIBRARY_PATH=/dev/shm/1/lib ./havege_sample > /dev/shm/havege_random
*/
#include <stdio.h>
#ifdef USE_SOURCE
#include "havege.h"
#else
#include <haveged/havege.h>
#endif
int my_status_dump ( H_PTR h, char *buf, size_t buflen) {
H_SD_TOPIC topics[4] = {H_SD_TOPIC_BUILD, H_SD_TOPIC_TUNE, H_SD_TOPIC_TEST, H_SD_TOPIC_SUM};
int ret=0, i;
for(i=0;i<4 && ret<(buflen-2);i++) {
ret += havege_status_dump(h, topics[i], buf + ret, buflen-ret);
if (ret>(buflen-2))
break;
buf[ret++] = '\n';
}
return ret;
}
/**
* RNG output is written to stdout
*/
int main(void) {
int rc;
H_UINT* buf;
H_PARAMS havege_parameters={0};
H_PTR havege_state = NULL;
const int status_buf_size = 8192;
char status_buf[status_buf_size];
int i, size;
//havege_parameters.msg_out = print_msg;
fprintf(stderr, "library version is %s\n", havege_version(NULL));
havege_state = havege_create(&havege_parameters);
rc = havege_state==NULL? H_NOHANDLE : havege_state->error;
if (H_NOERR==rc) {
buf = havege_state->io_buf;
size = havege_state->i_readSz /sizeof(H_UINT);
fprintf(stderr, "havege_create: buffer size is %d\n", havege_state->i_readSz);
}
else {
if (H_NOTESTSPEC==rc)
fprintf(stderr, "ERROR: havege_create: unrecognized test setup: %s", havege_parameters.testSpec);
else fprintf(stderr, "ERROR: havege_create has returned %d\n",rc);
if (H_NOHANDLE!=rc)
havege_destroy(havage_state);
return 1;
}
rc = havege_run(havege_state);
if ( rc ) {
fprintf(stderr, "ERROR: havege_run has returned %d\n", havege_state->error);
havege_destroy(havege_state);
return 1;
}
if ( my_status_dump(havege_state, status_buf, status_buf_size) > 0 )
fprintf(stderr,"%s\n", status_buf);
for (i=0;i<1024;i++) {
rc = havege_rng(havege_state, buf, size);
if ( rc != (int) size ) {
fprintf(stderr, "ERROR: havege_rng has returned %d\n", havege_state->error);
havege_destroy(havege_state);
return 1;
}
rc = fwrite(buf, 1, size, stdout);
if ( rc < size ) {
fprintf(stderr, "ERROR: fwrite\n");
havege_destroy(havege_state);
return 1;
}
}
if ( my_status_dump(havege_state, status_buf, status_buf_size) > 0 )
fprintf(stderr,"%s\n", status_buf);
havege_destroy(havege_state);
return 0;
}

76
contrib/build/lib.spec Normal file
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#
# Sample spec file for haveged and haveged-devel
# Copyright (c) 2013-2014
# This file and all modifications and additions to the pristine
# package are under the same license as the package itself.
#
%define have_systemd 0
Name: haveged
Version: 1.9
Release: 0
License: GPLv3
Group: System Environment/Daemons
Summary: Feed entropy into random pool
URL: http://www.issihosts.com/haveged/
Source0: http://www.issihosts.com/haveged/haveged-%{version}.tar.gz
BuildRoot: %{_builddir}/%{name}-root
%if 0%{?have_systemd}
BuildRequires: systemd
%endif
%description
The haveged daemon feeds the linux entropy pool with random
numbers generated from hidden processor state.
%package devel
Summary: haveged development files
Group: Development/Libraries
%description devel
Headers and shared object symbolic links for the haveged library
This package contains the haveged implementation of the HAVEGE
algorithm and supporting features.
%prep
%setup -q
%build
%configure \
--enable-daemon\
--enable--init=sysv.redhat
make
%check
make check
%install
%makeinstall
%{__install} -D -m0755 %{_sysconfdir}/init.d/%{name}
%if 0%{?have_systemd}
%{__install} -D -m0644 %{S:2} %{buildroot}%{_unitdir}/%{name}.service
%endif
%{__rm} -f %{buildroot}%{_libdir}/libhavege.*a
%clean
%{?buildroot:%__rm -rf "%{buildroot}"}
%files
%defattr(-, root, root, -)
%doc COPYING
%{_mandir}/man8/haveged.8*
%{_sbindir}/haveged
%if 0%{?have_systemd}
%{_unitdir}/haveged.service
%endif
%files devel
%doc COPYING
%defattr(-, root, root, -)
%{_mandir}/man3/libhavege.3*
%dir %{_includedir}/%{name}
%{_includedir}/%{name}/havege*.h
%doc contrib/build/havege_sample.c
%{_libdir}/*.so*


40
contrib/build/nolib.spec Normal file
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#
# Sample spec file for haveged
# Copyright (c) 2013-2014
# This file and all modifications and additions to the pristine
# package are under the same license as the package itself.
#
Name: haveged
Version: 1.9
Release: 1
License: GPLv3
Group: System Environment/Daemons
Summary: Feed entropy into random pool
URL: http://www.issihosts.com/haveged/
Source0: http://www.issihosts.com/haveged/haveged-%{version}.tar.gz
BuildRoot: %{_builddir}/%{name}-root
%description
The haveged daemon feeds the linux entropy pool with random
numbers generated from hidden processor state.
%prep
%setup -q
%build
./configure
make
make check
%install
[ ${RPM_BUILD_ROOT} != "/" ] && rm -rf $RPM_BUILD_ROOT
make DESTDIR=$RPM_BUILD_ROOT install
%clean
[ ${RPM_BUILD_ROOT} != "/" ] && rm -rf $RPM_BUILD_ROOT
%files
%defattr(-,root,root)
/usr/local/sbin/haveged
/usr/local/share/man/man8/haveged.8
/etc/init.d/haveged

12
contrib/diags/bins.p Normal file
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unset key
set ticslevel 0.1
set xlabel "Step"
set ylabel "Tick"
set zlabel "Count"
set zlabel rotate
set xtic .2
set ytic 1
set grid x y z
set title "Ticks Frequency"
splot("run.bins")

341
contrib/diags/data_prep.c Normal file
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/**
** Data preparation for diagnostic interfaces
**
** Copyright 2009-2011 Gary Wuertz gary@issiweb.com
** Copyright 2011 BenEleventh Consulting manolson@beneleventh.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <math.h>
/**
* Something borrowed......
*/
#define APP_BUFF_SIZE 1024
#define NDSIZECOLLECT 0x1000000
typedef unsigned int U_INT;
struct pparams {
int cmd; // command to execute
int options; // debug options
char *outpath; // output file;
FILE *input; // input file
FILE *output; // output file
U_INT limit; // limit delta
U_INT repeat; // repeat values
U_INT value; // inject value
U_INT bsize; // Buffer size
double xs; // X scale
};
/**
* For bin output
*/
#define X_BINS 512
#define Y_BINS 2048
/**
* Divide data into bins
*/
#define X_FACTOR (1.0 * X_BINS)/(1.0 * p->bsize)
#define Y_FACTOR (0.5 * Y_BINS)/(1.0 * 0x7fffffff)
/*
* Scale bins back to values x = 1M, y=4.0G
*/
#define X_SCALE (p->xs/X_BINS)
#define Y_SCALE (4.0/Y_BINS)
static int inject_output(struct pparams *p);
static void matrix_output(struct pparams *p);
static void sequence_output(struct pparams *p);
static void usage(int nopts, struct option *long_options, const char **cmds);
/**
* Data Prep
*/
int main(int argc, char **argv)
{
static const char* cmds[] = {
"b", "buffer", "1", "buffer size (k): default 1024",
"f", "file", "1", "output file name: default is '-' (stdout)",
"i", "inject", "1", "inject 0=2up, 1=1up, 2=raw 1up",
"o", "output", "1", "[bin|delta|inject|raw|xor|wrap] data",
"r", "repeat", "1", "repeat inject sequence",
"s", "start", "1", "start value inject sequence",
"u", "upper", "1", "inject sequence upper bound",
"v", "verbose", "1", "verbose reporting",
"h", "help", "0", "This help"
};
char *outputs[] = {"bin","delta","inject","raw","xor","wrap",NULL};
static int nopts = sizeof(cmds)/(4*sizeof(char *));
struct option long_options[nopts+1];
char short_options[1+nopts*2];
struct pparams params;
FILE *f;
U_INT i, j, n;
int c;
char *s;
for(i=j=0;j<(nopts*4);j+=4) {
long_options[i].name = cmds[j+1];
long_options[i].has_arg = atoi(cmds[j+2]);
long_options[i].flag = NULL;
long_options[i].val = cmds[j][0];
strcat(short_options,cmds[j]);
if (long_options[i].has_arg!=0) strcat(short_options,":");
i += 1;
}
memset(&long_options[i], 0, sizeof(struct option));
memset(&params, 0, sizeof(struct pparams));
params.outpath = "-";
params.bsize = NDSIZECOLLECT;
params.xs = 1.0;
do {
c = getopt_long (argc, argv, short_options, long_options, NULL);
switch(c) {
case 'b':
params.bsize = atoi(optarg);
params.xs = params.bsize;
while(params.xs >= 10.0)
params.xs /= 10.0;
break;
case 'f':
params.outpath = optarg;
break;
case 'i':
params.options = atoi(optarg);
break;
case 'o':
n = strlen(optarg);
for(i=0;outputs[i]!=NULL;i++)
if (!strncmp(optarg, outputs[i], n)) {
params.cmd = optarg[0];
break;
}
break;
case 'r':
params.repeat = atoi(optarg);
break;
case 's':
params.value = atoi(optarg);
break;
case 'u':
params.limit = atoi(optarg);
break;
case 'v':
params.cmd = atoi(optarg);
break;
case '?':
case 'h':
usage(nopts, long_options, cmds);
case -1:
break;
}
} while (c!=-1);
if (0==params.cmd || optind != (argc-1))
usage(nopts, long_options, cmds);
if (!strcmp(argv[1],"-"))
params.input = stdin;
else {
params.input = fopen(argv[optind], "rb");
if (NULL == params.input) {
fprintf(stderr, "Unable to open input %s\n", argv[optind]);
exit(2);
}
}
if (!strcmp(params.outpath, "-"))
params.output = stdout;
else {
params.output = fopen(params.outpath, "wb");
if (NULL == params.output) {
fprintf(stderr, "Unable to open %s\n", params.outpath);
exit(3);
}
fprintf(stdout, "writing to %s\n", params.outpath);
}
switch(params.cmd) {
case 'i':
while(inject_output(&params)>0)
;
break;
case 'b':
matrix_output(&params);
break;
case 'd': case 'r': case 'x': case 'w':
sequence_output(&params);
break;
}
if (params.output != stdout)
fclose(params.output);
return 0;
}
/**
* Create injection data - input file is log10 sequence data - can be repeated
*/
static int inject_output(struct pparams *p)
{
U_INT buf[APP_BUFF_SIZE];
char ibuf[80], *s;
U_INT i, j;
double n, delta;
int rv = 1;
n = 0;
for(i=0;i<APP_BUFF_SIZE && rv==1;i++) {
buf[i] = p->value;
s = fgets(ibuf, 80, p->input);
if (NULL == s && p->repeat != 0) {
p->repeat -= 1;
rewind(p->input);
s = fgets(ibuf, 80, p->input);
}
if (NULL != s) {
if (p->options!=0)
delta = strtod(ibuf, NULL);
else {
n = strtod(ibuf, &s);
delta = strtod(s, NULL);
}
if (p->limit != 0 && delta > p->limit)
delta -= p->limit;
if (p->options == 2)
p->value = (U_INT) delta;
else p->value += (U_INT)pow(10.0,delta);
}
else rv = 0;
}
if (i != fwrite(buf, sizeof(U_INT), i, p->output)) {
printf("Write error\n");
rv = -1;
}
return rv;
}
/**
* Create matrix data file
*/
static void matrix_output(struct pparams *p)
{
U_INT buf[APP_BUFF_SIZE];
U_INT **matrix;
FILE *f = p->input;
int i, n, sz, x, y;
matrix = (U_INT **) malloc(sizeof(U_INT **) * X_BINS);
if (NULL == matrix) {
fprintf(stderr, "Unable to allocate cols\n");
return;
}
sz = sizeof(U_INT *) * Y_BINS;
for (i = 0;i< X_BINS;i++) {
matrix[i] = (U_INT *)malloc(sz);
if (NULL == matrix[i]) {
fprintf(stderr, "Unable to allocate row\n");
return;
}
memset(matrix[i], 0, sz);
}
n = 0;
while(1) {
sz = fread(buf, sizeof(U_INT), APP_BUFF_SIZE, f);
if (sz < 1)
break;
for(i=0;i<sz;i++) {
x = (int)(n * X_FACTOR);
y = (int)(buf[i] * Y_FACTOR);
matrix[x][y] += 1;
n += 1;
n %= p->bsize;
}
}
for(x=0;x<X_BINS;x++)
for(y=0;y<Y_BINS;y++)
if (matrix[x][y]!=0)
fprintf(p->output,"%g\t%g\t%u\n", x*X_SCALE, y*Y_SCALE, matrix[x][y]);
}
/**
* Create sequence data file
*/
static void sequence_output(struct pparams *p)
{
U_INT buf[APP_BUFF_SIZE];
FILE *f = p->input;
int i, m, n, sz;
U_INT delta, cur, prev;
U_INT plus, minus;
m = p->cmd=='r'? 1 : 0;
n = 0;
plus = minus = 0;
while(1) {
sz = fread(buf, sizeof(U_INT), APP_BUFF_SIZE, f);
if (sz < 1)
break;
for(i=0;i<sz;i++) {
prev = cur;
cur = buf[i];
if (m==0) {
m = 1;
}
else switch(p->cmd) {
case 'd':
if (cur < prev)
delta = prev - cur;
else delta = cur - prev;
fprintf(p->output,"%g\t%g\n", n * 10.0/1024.0, log10(delta));
break;
case 'x':
fprintf(p->output,"%g\t%g\n", n * 10.0/1024.0, log10(cur^prev));
break;
case 'r':
fprintf(p->output,"%g\t%g\n", n * 10.0/1024.0, 1.0 * cur);
break;
case 'w':
if (cur < prev) {
if (p->options & 1)
fprintf(p->output,"rollover %d\n", n);
minus++;
}
else plus++;
break;
}
n += 1;
n %= p->bsize;
}
}
if (p->cmd=='w')
fprintf(p->output,"Rollover %u/%u = %g\n", minus, plus, minus*100/(double)(minus+plus));
}
/**
* usage
*/
static void usage(int nopts, struct option *long_options, const char **cmds)
{
int i;
fprintf(stderr, "\nUsage: %s [options] <file>\n\n", "data_prep");
fprintf(stderr, "Prepare diagnostic data from <file>\n\n");
fprintf(stderr, " Options:\n");
for(i=0;long_options[i].val != 0;i++) {
fprintf(stderr," --%-10s, -%c %s %s\n",
long_options[i].name, long_options[i].val,
long_options[i].has_arg? "[]":" ",cmds[4*i+3]);
}
fprintf(stderr, "\n");
exit(1);
}

8
contrib/diags/inc.p Normal file
View file

@ -0,0 +1,8 @@
unset key
set xlabel "Step"
set ylabel "log10(increment)"
set ylabel rotate
set xtic auto
set ytic auto
set title "Ticks Increment"
plot("run.inc")

6
contrib/diags/lognorm.r Normal file
View file

@ -0,0 +1,6 @@
x = rnorm(16*1024*1024, mean=2.005285, sd=0.2162)
write(x,file="i7.ln",ncolumns=1)
x = rnorm(16*1024*1024, mean=2.744504, sd=0.93767)
write(x,file="xeon.ln",ncolumns=1)
x = rnorm(16*1024*1024, mean=5.9478, sd=2.4142)
write(x,file="celeron.ln",ncolumns=1)

13
contrib/diags/lognorm.sh Executable file
View file

@ -0,0 +1,13 @@
#!/bin/sh
src/haveged -n 16m -f i7.dat -r 4 -s i7.ln
ent/entest -vf i7.dat
nist/nist i7.dat
mv nist.out i7.out
src/haveged -n 16m -f xeon.dat -r 4 -s xeon.ln
ent/entest -vf xeon.dat
nist/nist xeon.dat
mv nist.out xeon.out
src/haveged -n 16m -f celeron.dat -r 4 -s celeron.ln
ent/entest -vf celeron.dat
nist/nist celeron.dat
mv nist.out celeron.out

22
ent/Makefile.am Normal file
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@ -0,0 +1,22 @@
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MAINTAINERCLEANFILES = Makefile.in
if ENABLE_ENT_TEST
check-local:
./entest -t ${srcdir}/entitle.gif
../src/haveged -n 16384k -v 1 $*
./entest -vf sample
endif

577
ent/Makefile.in Normal file
View file

@ -0,0 +1,577 @@
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if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
if test -d $$d/$$file; then \
dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
if test -d "$(distdir)/$$file"; then \
find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
fi; \
if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
fi; \
cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
else \
test -f "$(distdir)/$$file" \
|| cp -p $$d/$$file "$(distdir)/$$file" \
|| exit 1; \
fi; \
done
@ENABLE_ENT_TEST_FALSE@check-local:
check-am: all-am
$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
$(MAKE) $(AM_MAKEFLAGS) check-local
check: check-am
all-am: Makefile
installdirs:
install: install-am
install-exec: install-exec-am
install-data: install-data-am
uninstall: uninstall-am
install-am: all-am
@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
installcheck: installcheck-am
install-strip:
if test -z '$(STRIP)'; then \
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
install; \
else \
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
"INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
fi
mostlyclean-generic:
clean-generic:
-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
distclean-generic:
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
maintainer-clean-generic:
@echo "This command is intended for maintainers to use"
@echo "it deletes files that may require special tools to rebuild."
-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
clean: clean-am
clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
mostlyclean-am
distclean: distclean-am
-rm -f Makefile
distclean-am: clean-am distclean-compile distclean-generic \
distclean-tags
dvi: dvi-am
dvi-am:
html: html-am
html-am:
info: info-am
info-am:
install-data-am:
install-dvi: install-dvi-am
install-dvi-am:
install-exec-am:
install-html: install-html-am
install-html-am:
install-info: install-info-am
install-info-am:
install-man:
install-pdf: install-pdf-am
install-pdf-am:
install-ps: install-ps-am
install-ps-am:
installcheck-am:
maintainer-clean: maintainer-clean-am
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
mostlyclean: mostlyclean-am
mostlyclean-am: mostlyclean-compile mostlyclean-generic \
mostlyclean-libtool
pdf: pdf-am
pdf-am:
ps: ps-am
ps-am:
uninstall-am:
.MAKE: check-am install-am install-strip
.PHONY: CTAGS GTAGS TAGS all all-am check check-am check-local clean \
clean-checkPROGRAMS clean-generic clean-libtool cscopelist-am \
ctags ctags-am distclean distclean-compile distclean-generic \
distclean-libtool distclean-tags distdir dvi dvi-am html \
html-am info info-am install install-am install-data \
install-data-am install-dvi install-dvi-am install-exec \
install-exec-am install-html install-html-am install-info \
install-info-am install-man install-pdf install-pdf-am \
install-ps install-ps-am install-strip installcheck \
installcheck-am installdirs maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-compile \
mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
tags tags-am uninstall uninstall-am
.PRECIOUS: Makefile
@ENABLE_ENT_TEST_TRUE@check-local:
@ENABLE_ENT_TEST_TRUE@ ./entest -t ${srcdir}/entitle.gif
@ENABLE_ENT_TEST_TRUE@ ../src/haveged -n 16384k -v 1 $*
@ENABLE_ENT_TEST_TRUE@ ./entest -vf sample
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

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/*
Compute probability of measured Chi Square value.
This code was developed by Gary Perlman of the Wang
Institute (full citation below) and has been minimally
modified for use in this program.
*/
#include <math.h>
/*HEADER
Module: z.c
Purpose: compute approximations to normal z distribution probabilities
Programmer: Gary Perlman
Organization: Wang Institute, Tyngsboro, MA 01879
Copyright: none
Tabstops: 4
*/
#define Z_MAX 6.0 /* maximum meaningful z value */
/*FUNCTION poz: probability of normal z value */
/*ALGORITHM
Adapted from a polynomial approximation in:
Ibbetson D, Algorithm 209
Collected Algorithms of the CACM 1963 p. 616
Note:
This routine has six digit accuracy, so it is only useful for absolute
z values < 6. For z values >= to 6.0, poz() returns 0.0.
*/
static double /*VAR returns cumulative probability from -oo to z */
poz(const double z) /*VAR normal z value */
{
double y, x, w;
if (z == 0.0) {
x = 0.0;
} else {
y = 0.5 * fabs(z);
if (y >= (Z_MAX * 0.5)) {
x = 1.0;
} else if (y < 1.0) {
w = y * y;
x = ((((((((0.000124818987 * w
-0.001075204047) * w +0.005198775019) * w
-0.019198292004) * w +0.059054035642) * w
-0.151968751364) * w +0.319152932694) * w
-0.531923007300) * w +0.797884560593) * y * 2.0;
} else {
y -= 2.0;
x = (((((((((((((-0.000045255659 * y
+0.000152529290) * y -0.000019538132) * y
-0.000676904986) * y +0.001390604284) * y
-0.000794620820) * y -0.002034254874) * y
+0.006549791214) * y -0.010557625006) * y
+0.011630447319) * y -0.009279453341) * y
+0.005353579108) * y -0.002141268741) * y
+0.000535310849) * y +0.999936657524;
}
}
return (z > 0.0 ? ((x + 1.0) * 0.5) : ((1.0 - x) * 0.5));
}
/*
Module: chisq.c
Purpose: compute approximations to chisquare distribution probabilities
Contents: pochisq()
Uses: poz() in z.c (Algorithm 209)
Programmer: Gary Perlman
Organization: Wang Institute, Tyngsboro, MA 01879
Copyright: none
Tabstops: 4
*/
#define LOG_SQRT_PI 0.5723649429247000870717135 /* log (sqrt (pi)) */
#define I_SQRT_PI 0.5641895835477562869480795 /* 1 / sqrt (pi) */
#define BIGX 20.0 /* max value to represent exp (x) */
#define ex(x) (((x) < -BIGX) ? 0.0 : exp(x))
/*FUNCTION pochisq: probability of chi sqaure value */
/*ALGORITHM Compute probability of chi square value.
Adapted from:
Hill, I. D. and Pike, M. C. Algorithm 299
Collected Algorithms for the CACM 1967 p. 243
Updated for rounding errors based on remark in
ACM TOMS June 1985, page 185
*/
double pochisq(
const double ax, /* obtained chi-square value */
const int df /* degrees of freedom */
)
{
double x = ax;
double a, y=0, s;
double e, c, z;
int even; /* true if df is an even number */
if (x <= 0.0 || df < 1) {
return 1.0;
}
a = 0.5 * x;
even = (2 * (df / 2)) == df;
if (df > 1) {
y = ex(-a);
}
s = (even ? y : (2.0 * poz(-sqrt(x))));
if (df > 2) {
x = 0.5 * (df - 1.0);
z = (even ? 1.0 : 0.5);
if (a > BIGX) {
e = (even ? 0.0 : LOG_SQRT_PI);
c = log(a);
while (z <= x) {
e = log(z) + e;
s += ex(c * z - a - e);
z += 1.0;
}
return (s);
} else {
e = (even ? 1.0 : (I_SQRT_PI / sqrt(a)));
c = 0.0;
while (z <= x) {
e = e * (a / z);
c = c + e;
z += 1.0;
}
return (c * y + s);
}
} else {
return s;
}
}

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/*
ENT -- Entropy calculation and analysis of putative
random sequences.
Designed and implemented by John "Random" Walker in May 1985.
Multiple analyses of random sequences added in December 1985.
Bit stream analysis added in September 1997.
Terse mode output, getopt() command line processing,
optional stdin input, and HTML documentation added in
October 1998.
Documentation for the -t (terse output) option added
in July 2006.
Replaced table look-up for chi square to probability
conversion with algorithmic computation in January 2008.
Hacked for haveged test April 2009
For additional information and the latest version,
see http://www.fourmilab.ch/random/
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include "getopt.h"
#ifdef _WIN32
#include <fcntl.h>
#include <io.h>
#else
#include <unistd.h>
#endif
#include "iso8859.h"
#include "randtest.h"
#define UPDATE "January 28th, 2008"
#define FALSE 0
#define TRUE 1
#ifdef M_PI
#define PI M_PI
#else
#define PI 3.14159265358979323846
#endif
extern double pochisq(const double ax, const int df);
struct pparams {
double chisqr;
double entropy;
double mean;
double pi;
double seq;
double xtreme;
};
static struct pparams defaults = {
.chisqr = 1, // bounds - should be >1% and <99%
.entropy = 7.5, // minimum - should be close to 8
.mean = 127.0, // minimum - should be close to 127.5
.pi = 0.5, // maximum - error deviation in percent
.seq = 0.8, // minimum - should be close to 1
.xtreme = 0.00001 // maximum - result deviation
};
struct pparams *params = &defaults;
static int check(long totalc, double ent, double chip, double mean, double montepi, double scc)
{
char failures[512];
int offs=0;
double p;
double p0 = params->chisqr;
double p1 = 100-p0;
if (ent<params->entropy) {
sprintf(failures+offs,"entropy:%f<%f ",ent,params->entropy);
offs=strlen(failures);
}
chip *= 100;
if (chip<p0||chip>p1) {
sprintf(failures+offs,"chisqr:%f%% not in %f-%f ",chip,p0,p1);
offs=strlen(failures);
}
if (mean<params->mean) {
sprintf(failures+offs,"mean:%f<%f ",mean,params->mean);
offs=strlen(failures);
}
p = 100*(montepi-PI)/PI;
if (fabs(p)>params->pi) {
sprintf(failures+offs,"pi:%f %f>%f ",montepi,p,params->pi);
offs=strlen(failures);
}
if (scc>params->seq) {
sprintf(failures+offs,"sequence:%f>%f ",scc,params->seq);
offs=strlen(failures);
}
if (offs) {
printf("Check Fail: %s\n",failures);
return -1;
}
printf("Sample looks good!\n");
return 0;
}
/* Who checks the checker? The ent self-test test the various options by collecting the output
* of the various options on a given input in a text and then doing a diff with the expected
* output. IMHO the text comparison is pretty cheezy since doubles are involved. We make the
* same check but do not require equality on the quantities involved
*/
static int checkSelf(long totalc, double ent, double chisq, double mean, double montepi, double scc)
{
double ref[6] = {11619,7.787095,6567.223255,110.000258,3.392562,0.098324};
double tst[6] = {totalc,ent,chisq,mean,montepi,scc};
int i;double f;
for(i=0;i<6;i++) {
f=fabs(tst[i]-ref[i])/ref[i];
if (f > params->xtreme) {
printf("Self-test(%d) failed:%f?",i,f);
return -1;
}
}
printf("Self-test good!\n");
return 0;
}
/* HELP -- Print information on how to call */
static void help(void)
{
printf("entest -- Test the havege RNG.");
printf("\n");
printf("\n Options: -c<min> Chi Square Threshold");
printf("\n -e<min> Min entropy/char");
printf("\n -f<file> File");
printf("\n -m<min> Min arithmetic mean");
printf("\n -p<max> Max error in pi");
printf("\n -s<min> Min serial coeficient");
printf("\n -t Self test");
printf("\n -u Print this message\n");
printf("\n -v Verbose - show the stats");
printf("\nAdapted from the work of John Walker");
printf("\n http://www.fourmilab.ch/\n\n");
}
/* Main program */
int main(int argc, char *argv[])
{
int oc, opt;
long ccount[256]; /* Bins to count occurrences of values */
long totalc = 0; /* Total character count */
double montepi, chip,
scc, ent, mean, chisq;
FILE *fp = stdin;
int fold = FALSE, /* Fold upper to lower */
binary = FALSE, /* Treat input as a bitstream */
stest = FALSE,
verbose = FALSE;
char *filename="";
while ((opt = getopt(argc, argv, "?c:e:f:m:p:s:t:v")) != -1) {
switch (toISOlower(opt)) {
case 'c':
params->chisqr = atof(optarg);
break;
case 'e':
params->entropy = atof(optarg);
break;
case 'f':
filename = optarg;
break;
case 'm':
params->mean = atof(optarg);
break;
case 'p':
params->pi = atof(optarg);
break;
case 's':
params->seq = atof(optarg);
break;
case 't':
filename = optarg;
/* filename = "entitle.gif"; */
stest = TRUE;
break;
case 'v':
verbose = TRUE;
break;
default:
help();
return -1;
}
}
if (!strlen(filename)) {
printf("Need input file\n");
help();
return 2;
}
if ((fp = fopen(filename, "rb")) == NULL) {
printf("Cannot open file %s\n", filename);
return 2;
}
memset(ccount, 0, sizeof ccount);
/* Initialise for calculations */
rt_init(binary);
/* Scan input file and count character occurrences */
while ((oc = fgetc(fp)) != EOF) {
unsigned char ocb;
if (fold && isISOalpha(oc) && isISOupper(oc)) {
oc = toISOlower(oc);
}
ocb = (unsigned char) oc;
totalc += binary ? 8 : 1;
if (binary) {
int b;
unsigned char ob = ocb;
for (b = 0; b < 8; b++) {
ccount[ob & 1]++;
ob >>= 1;
}
} else {
ccount[ocb]++; /* Update counter for this bin */
}
rt_add(&ocb, 1);
}
fclose(fp);
/* Complete calculation and return sequence metrics */
rt_end(&ent, &chisq, &mean, &montepi, &scc);
chip = pochisq(chisq, (binary ? 1 : 255));
if (verbose)
printf("\nTest Results\n"
"Sample: %ld bytes\n"
"Entropy: %f bits\n"
"Chi-Square: %f(%f%%)\n"
"Mean: %f\n"
"PI: %f(%f%%)\n"
"Correlation: %f\n",
totalc, ent, chisq, chip*100, mean, montepi,100*(montepi-PI)/PI,scc);
if (stest)
return checkSelf(totalc, ent, chisq, mean, montepi, scc);
return check(totalc, ent, chip, mean, montepi, scc);
}

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19
ent/iso8859.c Normal file
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/* ISO 8859/1 Latin-1 alphabetic and upper and lower case bit vector tables. */
/* LINTLIBRARY */
unsigned char isoalpha[32] = {
0,0,0,0,0,0,0,0,127,255,255,224,127,255,255,224,0,0,0,0,0,0,0,0,255,255,
254,255,255,255,254,255
};
unsigned char isoupper[32] = {
0,0,0,0,0,0,0,0,127,255,255,224,0,0,0,0,0,0,0,0,0,0,0,0,255,255,254,254,
0,0,0,0
};
unsigned char isolower[32] = {
0,0,0,0,0,0,0,0,0,0,0,0,127,255,255,224,0,0,0,0,0,0,0,0,0,0,0,1,255,255,
254,255
};

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/* ISO 8859/1 Latin-1 "ctype" macro replacements. */
extern unsigned char isoalpha[32], isoupper[32], isolower[32];
#define isISOspace(x) ((isascii(((unsigned char) (x))) && isspace(((unsigned char) (x)))) || ((x) == 0xA0))
#define isISOalpha(x) ((isoalpha[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0)
#define isISOupper(x) ((isoupper[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0)
#define isISOlower(x) ((isolower[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0)
#define isISOprint(x) ((((x) >= ' ') && ((x) <= '~')) || ((x) >= 0xA0))
#define toISOupper(x) (isISOlower(x) ? (isascii(((unsigned char) (x))) ? \
toupper(x) : (((((unsigned char) (x)) != 0xDF) && \
(((unsigned char) (x)) != 0xFF)) ? \
(((unsigned char) (x)) - 0x20) : (x))) : (x))
#define toISOlower(x) (isISOupper(x) ? (isascii(((unsigned char) (x))) ? \
tolower(x) : (((unsigned char) (x)) + 0x20)) \
: (x))

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/*
Apply various randomness tests to a stream of bytes
by John Walker -- September 1996
http://www.fourmilab.ch/
*/
#include <math.h>
#define FALSE 0
#define TRUE 1
#define log2of10 3.32192809488736234787
static int binary = FALSE; /* Treat input as a bitstream */
static long ccount[256], /* Bins to count occurrences of values */
totalc = 0; /* Total bytes counted */
static double prob[256]; /* Probabilities per bin for entropy */
/* RT_LOG2 -- Calculate log to the base 2 */
static double rt_log2(double x)
{
return log2of10 * log10(x);
}
#define MONTEN 6 /* Bytes used as Monte Carlo
co-ordinates. This should be no more
bits than the mantissa of your
"double" floating point type. */
static int mp, sccfirst;
static unsigned int monte[MONTEN];
static long inmont, mcount;
static double cexp, incirc, montex, montey, montepi,
scc, sccun, sccu0, scclast, scct1, scct2, scct3,
ent, chisq, datasum;
/* RT_INIT -- Initialise random test counters. */
void rt_init(int binmode)
{
int i;
binary = binmode; /* Set binary / byte mode */
/* Initialise for calculations */
ent = 0.0; /* Clear entropy accumulator */
chisq = 0.0; /* Clear Chi-Square */
datasum = 0.0; /* Clear sum of bytes for arithmetic mean */
mp = 0; /* Reset Monte Carlo accumulator pointer */
mcount = 0; /* Clear Monte Carlo tries */
inmont = 0; /* Clear Monte Carlo inside count */
incirc = 65535.0 * 65535.0;/* In-circle distance for Monte Carlo */
sccfirst = TRUE; /* Mark first time for serial correlation */
scct1 = scct2 = scct3 = 0.0; /* Clear serial correlation terms */
incirc = pow(pow(256.0, (double) (MONTEN / 2)) - 1, 2.0);
for (i = 0; i < 256; i++) {
ccount[i] = 0;
}
totalc = 0;
}
/* RT_ADD -- Add one or more bytes to accumulation. */
void rt_add(void *buf, int bufl)
{
unsigned char *bp = buf;
int oc, c, bean;
while (bean = 0, (bufl-- > 0)) {
oc = *bp++;
do {
if (binary) {
c = !!(oc & 0x80);
} else {
c = oc;
}
ccount[c]++; /* Update counter for this bin */
totalc++;
/* Update inside / outside circle counts for Monte Carlo
computation of PI */
if (bean == 0) {
monte[mp++] = oc; /* Save character for Monte Carlo */
if (mp >= MONTEN) { /* Calculate every MONTEN character */
int mj;
mp = 0;
mcount++;
montex = montey = 0;
for (mj = 0; mj < MONTEN / 2; mj++) {
montex = (montex * 256.0) + monte[mj];
montey = (montey * 256.0) + monte[(MONTEN / 2) + mj];
}
if ((montex * montex + montey * montey) <= incirc) {
inmont++;
}
}
}
/* Update calculation of serial correlation coefficient */
sccun = c;
if (sccfirst) {
sccfirst = FALSE;
scclast = 0;
sccu0 = sccun;
} else {
scct1 = scct1 + scclast * sccun;
}
scct2 = scct2 + sccun;
scct3 = scct3 + (sccun * sccun);
scclast = sccun;
oc <<= 1;
} while (binary && (++bean < 8));
}
}
/* RT_END -- Complete calculation and return results. */
void rt_end(double *r_ent, double *r_chisq, double *r_mean,
double *r_montepicalc, double *r_scc)
{
int i;
/* Complete calculation of serial correlation coefficient */
scct1 = scct1 + scclast * sccu0;
scct2 = scct2 * scct2;
scc = totalc * scct3 - scct2;
if (scc == 0.0) {
scc = -100000;
} else {
scc = (totalc * scct1 - scct2) / scc;
}
/* Scan bins and calculate probability for each bin and
Chi-Square distribution. The probability will be reused
in the entropy calculation below. While we're at it,
we sum of all the data which will be used to compute the
mean. */
cexp = totalc / (binary ? 2.0 : 256.0); /* Expected count per bin */
for (i = 0; i < (binary ? 2 : 256); i++) {
double a = ccount[i] - cexp;;
prob[i] = ((double) ccount[i]) / totalc;
chisq += (a * a) / cexp;
datasum += ((double) i) * ccount[i];
}
/* Calculate entropy */
for (i = 0; i < (binary ? 2 : 256); i++) {
if (prob[i] > 0.0) {
ent += prob[i] * rt_log2(1 / prob[i]);
}
}
/* Calculate Monte Carlo value for PI from percentage of hits
within the circle */
montepi = 4.0 * (((double) inmont) / mcount);
/* Return results through arguments */
*r_ent = ent;
*r_chisq = chisq;
*r_mean = datasum / totalc;
*r_montepicalc = montepi;
*r_scc = scc;
}

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/* Random test function prototypes */
extern void rt_init(int binmode);
extern void rt_add(void *buf, int bufl);
extern void rt_end(double *r_ent, double *r_chisq, double *r_mean,
double *r_montepicalc, double *r_scc);

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## Process this file with automake to produce Makefile.in.
EXTRA_DIST = service.fedora service.forking service.redhat service.suse sysv.lsb sysv.redhat
MAINTAINERCLEANFILES = Makefile.in
CLEANFILES = haveged haveged.service
do_subst = sed -e 's,[@]SBIN_DIR[@],$(sbindir),g'
src_tmpl = @HA_DISTRO@
unit_dir = @HA_UNITD@
if ENABLE_NOINIT
## user will install manually.
install-exec-hook:
@echo "no init script installed";
endif
if ENABLE_SYSV
## legacy init script - installation via automake defaults
initdir = $(sysconfdir)/init.d
init_SCRIPTS = haveged
haveged: $(src_tmpl) Makefile
$(do_subst) < $(srcdir)/$(src_tmpl) > haveged;
endif
if ENABLE_SYSTEMD
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35
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@ -0,0 +1,35 @@
[Unit]
Description=Entropy Daemon based on the HAVEGE algorithm
Documentation=man:haveged(8) http://www.issihosts.com/haveged/
DefaultDependencies=no
After=systemd-tmpfiles-setup-dev.service
Before=sysinit.target shutdown.target systemd-journald.service
[Service]
ExecStart=@SBIN_DIR@/haveged -w 1024 -v 1 --Foreground
Restart=always
SuccessExitStatus=137 143
SecureBits=noroot-locked
CapabilityBoundingSet=CAP_SYS_ADMIN
# We can *not* set PrivateTmp=true as it can cause an ordering cycle.
PrivateTmp=false
PrivateDevices=true
PrivateNetwork=true
ProtectSystem=full
ProtectHome=true
ProtectHostname=true
ProtectKernelLogs=true
ProtectKernelModules=true
RestrictNamespaces=true
RestrictRealtime=true
LockPersonality=true
MemoryDenyWriteExecute=true
SystemCallArchitectures=native
SystemCallFilter=@system-service
SystemCallFilter=~@mount
SystemCallErrorNumber=EPERM
[Install]
WantedBy=sysinit.target

11
init.d/service.forking Normal file
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@ -0,0 +1,11 @@
[Unit]
Description=Entropy Daemon based on the HAVEGE algorithm
Documentation=man:haveged(8) http://www.issihosts.com/haveged/
[Service]
Type=forking
PIDFile=/run/haveged.pid
ExecStart=@SBIN_DIR@/haveged -w 1024 -v 1 -p /run/haveged.pid
[Install]
WantedBy=multi-user.target

10
init.d/service.redhat Normal file
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@ -0,0 +1,10 @@
[Unit]
Description=Entropy Daemon based on the HAVEGE algorithm
[Service]
Type=forking
PIDFile=/run/haveged.pid
ExecStart=@SBIN_DIR@/haveged -w 1024 -v 1
[Install]
WantedBy=multi-user.target

19
init.d/service.suse Normal file
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@ -0,0 +1,19 @@
[Unit]
Description=Entropy Daemon based on the HAVEGE algorithm
Documentation=man:haveged(8) http://www.issihosts.com/haveged/
DefaultDependencies=no
ConditionVirtualization=!container
#Conflicts=shutdown.target
# Don't wait for systemd-random-seed.service, leads to deadlock with fips=1
#After=systemd-random-seed.service
Before=sysinit.target shutdown.target systemd-journald.service
[Service]
ExecStart=/usr/sbin/haveged -w 1024 -v 0 -F
CapabilityBoundingSet=CAP_SYS_ADMIN CAP_SYS_CHROOT
PrivateNetwork=yes
Restart=always
SuccessExitStatus=137 143
[Install]
WantedBy=sysinit.target

75
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@ -0,0 +1,75 @@
#!/bin/sh
#
# Copyright 2011-2012 Jirka Hladky hladky_dot_jiri_at_gmail_com
# Copyright 2011-2012 Gary Wuertz gary@issiweb.com
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# haveged: Starts the haveged entropy daemon
#
# chkconfig: - 75 25
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# processname: haveged
#
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RETVAL=0
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esac
exit $RETVAL

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#!/bin/sh
#
# Copyright 2011-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
# Copyright 2011-2012 Gary Wuertz gary@issiweb.com
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# haveged: Starts the haveged entropy daemon
#
# chkconfig: - 75 25
# description: havege entropy daemon
# processname: haveged
#
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;;
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;;
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esac
exit $RETVAL

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.TH haveged 8 "February 10, 2014" "version 1.9" "SYSTEM ADMINISTRATION COMMANDS"
.SH NAME
haveged \- Generate random numbers and feed Linux's random device.
.SH SYNOPSIS
.B haveged [options]
.SH DESCRIPTION
.B haveged
generates an unpredictable stream of random numbers harvested from the indirect
effects of hardware events on hidden processor state (caches, branch predictors,
memory translation tables, etc) using the HAVEGE (HArdware Volatile Entropy
Gathering and Expansion) algorithm. The algorithm operates in user space, no
special privilege is required for file system access to the output stream.
.P
Linux pools randomness for distribution by the /dev/random and /dev/urandom
device interfaces. The standard mechanisms of filling the /dev/random pool may
not be sufficient to meet demand on systems with high needs or limited user
interaction. In those circumstances,
.B haveged
may be run as a privileged daemon to fill the /dev/random pool whenever the
supply of random bits in /dev/random falls below the low water mark of the
device.
.P
.B haveged
tunes itself to its environment and provides the same built-in test suite
for the output stream as used on certified hardware security devices. See
.B NOTES
below for further information.
.SH OPTIONS
.TP
-b nnn, --buffer=nnn
Set collection buffer size to nnn KW. Default is 128KW (or 512KB).
.TP
-c cmd, --command=cmd
Switch to command mode and send a command to an already running
.B haveged
process or daemon. Currently the only known commands are
.I close
to close the current communication socket of the running
.B haveged
process as well as
.IR root = <new_root>
where
.I <new_root>
is a place holder for the path of the real new root directory which should
provide a haveged installation. The
.B haveged
process or daemon will perform a
.BR chroot (2)
system call followed by a
.BR execv (3)
to become rebased
.B within
the new root directory.
.TP
-d nnn, --data=nnn
Set data cache size to nnn KB. Default is 16 or as determined dynamically.
.TP
-f file, --file=file
Set output file path for non-daemon use. Default is "sample",
use "-" for stdout.
.TP
-F , --Foreground
Run daemon in foreground. Do not fork and detach.
.TP
-i nnn, --inst=nnn
Set instruction cache size to nnn KB. Default is 16 or as determined dynamically.
.TP
-n nnn, --number=nnn
Set number of bytes written to the output file. The value may be specified using one
of the suffixes k, m, g, or t. The upper bound of this value is "16t" (2^44 Bytes = 16TB).
A value of 0 indicates unbounded output and forces output to stdout. This argument is
required if the daemon interface is not present. If the daemon interface is present, this
setting takes precedence over any --run value.
.TP
-o <spec>, --onlinetest=<spec>
Specify online tests to run. The <spec> consists of optional "t"ot and
"c"ontinuous groups, each group indicates the procedures to be run, using "a<n>"
to indicate a AIS-31 procedure A variant, and "b" to indicate AIS procedure B.
The specifications are order independent (procedure B always runs first in each
group) and case insensitive. The a<n> variations exist to mitigate the a slow
autocorrelation test (test5). Normally all procedure A tests, except the first
are iterated 257 times. An a<n> option indicates test5 should only be executed
every modulo <n> times during the procedure's 257 repetitions. The effect is so
noticeable that A8 is the usual choice.
The "tot" tests run only at initialization - there are no negative performance
consequences except for a slight increase in the time required to initialize.
The "tot" tests guarantee haveged has initialized properly. The use of both test
procedures in the "tot" test is highly recommended because the two test emphasize
different aspects of RNG quality.
In continuous testing, the test sequence is cycled repeatedly. For example, the
string "tbca8b" (suitable for an AIS NTG.1 device) would run procedure B for the
"tot" test, then cycle between procedure A8 and procedure B continuously for all
further output. Continuous testing does not come for free, impacting both
throughput and resource consumption. Continual testing also opens up the possibility
of a test failure. A strict retry procedure recovers from spurious failure in all but
the most extreme circumstances. When the retry fails, operation will terminate unless
a "w" has been appended to the test token to make the test advisory only. In our
example above, the string "tbca8wbw" would make all continuous tests advisory. For
more detailed information on AIS retries see
.B NOTES
below.
Complete control over the test configuration is provided for flexibility. The
defaults (ta8bcb" if run as a daemon and "ta8b" otherwise) are suitable for most
circumstances.
.TP
-p file, --pidfile=file
Set file path for the daemon pid file. Default is "/var/run/haveged.pid",
.TP
-r n, --run=n
Set run level for daemon interface:
n = 0 Run as daemon - must be root. Fills /dev/random when the supply of random bits
falls below the low water mark of the device.
n = 1 Display configuration info and terminate.
n > 1 Write <n> kb of output. Deprecated (use --number instead), only provided for backward
compatibility.
If --number is specified, values other than 0,1 are ignored. Default is 0.
.TP
-v n, --verbose=n
Set diagnostic bitmap as sum of following options:
1=Show build/tuning summary on termination, summary for online test retries.
2=Show online test retry details
4=Show timing for collections
8=Show collection loop layout
16=Show collection loop code offsets
32=Show all online test completion detail
Default is 0. Use -1 for all diagnostics.
.TP
-w nnn, --write=nnn
Set write_wakeup_threshold of daemon interface to nnn bits. Applies only to run level 0.
.TP
-?, --help
This summary of program options.
.SH NOTES
.P
haveged tunes the HAVEGE algorithm for maximum effectiveness using a hierarchy
of defaults, command line options, virtual file system information, and cpuid
information where available. Under most circumstances, user input is not
required for excellent results.
.P
Run-time testing provides assurance of correct haveged operation. The run-time
test suite is modeled upon the AIS-31 specification of the German Common
Criteria body, BIS. This specification is typically applied to hardware devices,
requiring formal certification and mandated start-up and continuous operational
testing. Because haveged runs on many different hardware platforms, certification
cannot be a goal, but the AIS-31 test suite provides the means to assess haveged
output with the same operational tests applied to certified hardware devices.
.P
AIS test procedure A performs 6 tests to check for statistically inconspicuous
behavior. AIS test procedure B performs more theoretical tests such as checking
multi-step transition probabilities and making an empirical entropy estimate.
Procedure A is the much more resource and compute intensive of the two but is
still recommended for the haveged start-up tests. Procedure B is well suited to
use of haveged as a daemon because the test entropy estimate confirms the
entropy estimate haveged uses when adding entropy to the /dev/random device.
.P
No test is perfect. There is a 10e-4 probability that a perfect generator will
fail either of the test procedures. AIS-31 mandates a strict retry policy to
filter out false alarms and haveged always logs test procedure failures. Retries
are expected but rarely observed except when large data sets are generated with
continuous testing. See the
.B libhavege(3)
notes for more detailed information.
.SH FILES
If running as a daemon, access to the following files is required
.RS
.P
.I /dev/random
.P
.I /proc/sys/kernel/osrelease
.P
.I /proc/sys/kernel/random/poolsize
.P
.I /proc/sys/kernel/random/write_wakeup_threshold
.RE
.SH DIAGNOSTICS
Haveged returns 0 for success and non-zero for failure. The failure return code is 1
"general failure" unless execution is terminated by signal <n>, in which case
the return code will be 128 + <n>. The following diagnostics are issued to stderr
upon non-zero termination:
Cannot fork into the background
.RS
Call to daemon(3) failed.
.RE
Cannot open file <s> for writing.
.RS
Could not open sample file <s> for writing.
.RE
Cannot write data in file:
.RS
Could not write data to the sample file.
.RE
Couldn't get pool size.
.RS
Unable to read /proc/sys/kernel/random/poolsize
.RE
Couldn't initialize HAVEGE rng
.RS
Invalid data or instruction cache size.
.RE
Couldn't open PID file <s> for writing
.RS
Unable to write daemon PID
.RE
Couldn't open random device
.RS
Could not open /dev/random for read-write.
.RE
Couldn't query entropy-level from kernel: error
.RS
Call to ioctl(2) failed.
.RE
Couldn't open PID file <path> for writing
.RS
Error writing /var/run/haveged.pid
.RE
Fail:set_watermark()
.RS
Unable to write to /proc/sys/kernel/random/write_wakeup_threshold
.RE
RNDADDENTROPY failed!
.RS
Call to ioctl(2) to add entropy failed
.RE
RNG failed
.RS
The random number generator failed self-test or encountered a fatal error.
.RE
Select error
.RS
Call to select(2) failed.
.RE
Stopping due to signal <n>
.RS
Signal <n> caught.
.RE
Unable to setup online tests
.RS
Memory unavailable for online test resources.
.SH EXAMPLES
.TP
Write 1.5MB of random data to the file /tmp/random
haveged -n 1.5M -f /tmp/random
.TP
Generate a /tmp/keyfile for disk encryption with LUKS
haveged -n 2048 -f /tmp/keyfile
.TP
Overwrite partition /dev/sda1 with random data. Be careful, all data on the partition will be lost!
haveged -n 0 | dd of=/dev/sda1
.TP
Generate random ASCII passwords of the length 16 characters
(haveged -n 1000 -f - 2>/dev/null | tr -cd '[:graph:]' | fold -w 16 && echo ) | head
.TP
Write endless stream of random bytes to the pipe. Utility pv measures the speed by which data are written to the pipe.
haveged -n 0 | pv > /dev/null
.TP
Evaluate speed of haveged to generate 1GB of random data
haveged -n 1g -f - | dd of=/dev/null
.TP
Create a random key file containing 65 random keys for the encryption program aespipe.
haveged -n 3705 -f - 2>/dev/null | uuencode -m - | head -n 66 | tail -n 65
.TP
Test the randomness of the generated data with dieharder test suite
haveged -n 0 | dieharder -g 200 -a
.TP
Generate 16k of data, testing with procedure A and B with detailed test results. No c result seen because a single buffer fill did not contain enough data to complete the test.
haveged -n 16k -o tba8ca8 -v 33
.TP
Generate 16k of data as above with larger buffer. The c test now completes - enough data now generated to complete the test.
haveged -n 16k -o tba8ca8 -v 33 -b 512
.TP
Generate 16m of data as above, observe many c test completions with default buffer size.
haveged -n 16m -o tba8ca8 -v 33
.TP
Generate large amounts of data - in this case 16TB. Enable initialization test but made continuous tests advisory only to avoid a possible situation that program will terminate because of procedureB failing two times in a row. The probability of procedureB to fail two times in a row can be estimated as <TB to generate>/3000 which yields 0.5% for 16TB.
haveged -n 16T -o tba8cbw -f - | pv > /dev/null
.TP
Generate large amounts of data (16TB). Disable continuous tests for the maximum throughput but run the online tests at the startup to make sure that generator for properly initialized:
haveged -n 16T -o tba8c -f - | pv > /dev/null
.SH SEE ALSO
.TP
.BR libhavege(3),
.BR cryptsetup(8),
.BR aespipe(1),
.BR pv(1),
.BR openssl(1),
.BR uuencode(1)
.SH REFERENCES
.I HArdware Volatile Entropy Gathering and Expansion: generating unpredictable random numbers at user level
by A. Seznec, N. Sendrier, INRIA Research Report, RR-4592, October 2002
.I A proposal for: Functionality classes for random number generators
by W. Killmann and W. Schindler, version 2.0, Bundesamt fur Sicherheit in der
Informationstechnik (BSI), September, 2011
.I A Statistical Test Suite for the Validation of Random NUmber Generators and Pseudorandom Number Generators for Cryptographic Applications,
special publication SP800-22, National Institute of Standards and Technology, revised April, 2010
Additional information can also be found at
.B http://www.issihosts.com/haveged/
.SH AUTHORS
Gary Wuertz <gary@issiweb.com> and Jirka Hladky <hladky jiri AT gmail DOT com>

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.TH libhavege 3 "February 10, 2014" "version 1.1" "LIBRARY FUNCTIONS"
.SH NAME
libhavege, havege_create, havege_run, havege_rng, havege_destroy, havege_status, havege_status_dump, havege_version \- haveged RNG
.SH SYNOPSIS
.HP
.P
.nf
#include <haveged/havege.h>
H_PARAMS params = {0};
h_status status;
char status_buf[512];
if (NULL==havege_version(HAVEGE_PREP_VERSION)) exit(1);
H_PTR handle = havege_create(&params);
havege_status(handle, &status);
havege_run(handle);
rc = havege_rng(handle, handle->io_buf, handle->i_readSz/sizeof(H_UINT));
havege_status_dump(handle, H_SD_TOPIC_BUILD, status_buf, sizeof(status_buf));
havege_destroy(handle);
.fi
.SH DESCRIPTION
.P
The libhavege library provides the haveged random number generator and it's
associated tuning and testing facilities in a development sub-package. All
haveged conditional build features are preserved and all haveged options not
directly related to it's daemon or file system interfaces are available. This
means that the same haveged tuning and testing components are present in the
library with the equivalent controls provided by the haveged command line.
.SH API METHODS
.P
The libhavege library uses the opaque handle technique to manage it's required
resources. Errors are returned in the "error" member of the handle. The
havege_destroy() method should be called to dispose of any resources
claimed by havege_create().
.P
.BI "H_PTR havege_create(H_PARAMS " *params ");"
Create an anchor. Most members of the H_PARAMS input to this call correspond
closely to haveged command line options (see
.B haveged(8)
for details). The caller
should check for a non-null return value with a error value of H_NOERR. Any
non-null return should be disposed of by a call to havege_destroy() to free any
resources. Possible error values: H_NOERR, H_NOTESTSPEC, H_NOBUF, H_NOTESTMEM,
H_NOINIT
.P
.BI "void havege_destroy(H_PTR " hptr ");"
Free all allocated anchor resources. If the multi-core option is used, this
method should be called from a signal handler to prevent zombie processes. If
called by the process that called haveged_create(), hptr will be freed when all
child processes (if any) have terminated. If called by a child process, H_EXIT
will be set and all children awakened to exit.
.P
.BI "int havege_rng(H_PTR " hptr ", H_UINT " *buf ", H_UINT " sz ");"
Read random bytes from an active anchor. The RNG must have been previously
readied by a call to havege_run(). The read must take place within the allocated
buffer, hptr->io_buf. The range specified is the number of H_UINT to read. If
the multi-core option is used, this buffer is memory mapped between collectors.
Possible error values: H_NOERR, H_NOTESRUN, H_NOPOST, H_NODONE, H_NORQST,
H_NOCOMP, H_EXIT
.P
.BI "int havege_run(H_PTR " hptr ");"
Warm up the RNG and run the start-up tests. The operation succeeded if the error
member of the handle is H_NOERR. A failed handle should be disposed of by a call
to havege_destroy(). Possible error values: H_NOERR, H_NOCOLLECT, H_NOWALK,
H_NOTESTMEM, H_NOTASK, H_NOTESTTOT, H_NOWAIT, H_NOTIMER, and any havege_rng()
error.
.P
.BI "void havege_status(H_PTR " hptr ", H_STATUS " hsts ");"
Fills in the h_status structure with read-only information collected from the
package build, run-time tuning, and test components.
.P
.BI "int havege_status_dump(H_PTR " hptr ", H_SD_TOPIC " topic ", char " *buf ", size_t " len ");"
Calls havege_status() and formats standard presentations of havege status in the
supplied buffer. The standard formats are:
.RS
H_SD_TOPIC_BUILD
ver: %s; arch: %s; vend: %s; build: (%s); collect: %dK
H_SD_TOPIC_TUNE
cpu: (%s); data: %dK (%s); inst: %dK (%s); idx: %d/%d; sz: %d/%d
H_SD_TOPIC_TEST
[tot tests(%s): A:%d/%d B: %d/%d;][continuous tests(%s): A:%d/%d B: %d/%d;][last entropy estimate %g]
H_SD_TOPIC_SUM
fills: %d, generated: %.4g %c bytes
.RE
.BI "const char *havege_version(const char *" version ");"
Return/check library prep version. The prep version is the package version used
to build the library. A null argument returns the prep version unconditionally.
Using the definition of the prep string in havege.h as input returns the
prep version if the header file is compatible with the library, or NULL if
it is not. Intended to be called before attempting any initialization.
.SH NOTES
.P
The sizes of the processor level 1 instruction and data caches are used to tune
the HAVEGE algorithm for maximum sensitivity. If these sizes not specified,
haveged will attempt to determine the sizes dynamically from the Linux sysfs
and/or cpuid instruction with a fallback to a compiled default if no better
information is not available.
The haveged RNG includes a run time test facility based upon the test suite
defined in the AIS-31 specification from the The German Federal Office for
Information Security (Bundesamt für Sicherheit in der Informationstechnik). The
test suite consists of 11 statistical tests packaged into two test suites ("A"
and "B"). The tests can be run at initialization (a.k.a. a "tot" test), or
continuously to monitor all output. Failure of a suite will abort operation
unless the behavior is explicitly waived in the test setup options.
.P
Procedure A contains 6 test procedures designed to ensure statistically
inconspicuous behavior. The first test, "test0", checks the disjointedness of
65k six-bit strings. The remainder of the procedure consists of 257 repetitions
of the FIPS140-1 tests, "test1" through "test4", and an auto-correlation test,
"test5". The fixed size of the Procedure A input makes it ideal for continuous
use, but the procedure is slow and resource intensive. In particular, test5 is
several orders of magnitude slower than any other individual AIS test. As an
alternative for those who cannot tolerate this load, procedure A variants A<n>
are provided that execute all included tests but execute test5 only every 2^n
repetitions. Even with this accommodation, procedure A is much slower than
procedure B.
.P
Procedure B contains 5 tests, "test6a", "test6b', "test7a", "test7b", and
"test8". The first 4 tests verify the expected frequencies for samples 100,000
one-step, two-step, three-step, and four-step bit transitions. The last test
provides an empirical entropy estimate of the input. The input required to
complete these tests is variable, resulting in an ever-shifting bit alignment
that guards against buffering artifacts.
.P
Each test procedure requires more than 1MB of data. Test input is managed by a
bit index into the collection buffer. An independent index manages where integer
output is taken from the same buffer. A buffer fill is triggered when the output
index indicates all data has been extracted from the buffer. Online testing
takes place after the buffer has been refilled but before the output index
update allows output to resume. If any online test fails while processing the
buffer, the buffer will be refilled and reprocessed until any retry is complete
and the buffer contains no failed online tests or the online test procedure has
failed and the RNG is considered broken.
.P
It is recommend to run both AIS test procedures at start-up to ensure the RNG
is properly initialized. If resources are in short supply, omitting procedure A
will save memory and time, with little risk in circumstances where output is
mixed with other sources in /dev/random or other csprng. Continuous testing is
also recommended where the throughput penalty is acceptable. One recent
assessment of testing throughput costs is shown below.
.RS
.TP 40
haveged -n0 -oc | pv > /dev/null
400MiB/s
.TP
haveged -n0 -ocb | pv > /dev/null
70MiB/s
.TP
haveged -n0 -oca8b | pv > /dev/null
13MiB/s
.TP
haveged -n0 -oca8 | pv > /dev/null
8MiB/s
.TP
haveged -n0 -oca | pv > /dev/null
100kiB/s
.RE
.P
Continuous testing also exposes another possible pitfall. Even an ideal RNG has
a 10e-4 chance of failing either test procedure. The strict retry policy of
AIS-31 is designed to guarantee an ideal RNG will "almost never" fail a test
procedure. A single retry is mandated only to recover from a previous attempt
that experienced a single individual test failure. The haveged implementation
logs all retries and terminates on test procedure failures unless the procedure
has been flagged as advisory by the "w" argument (see --onlinetest in
.B haveged(8)
). Little evidence of the retry mechanism is seen unless large data sets are
processed. Procedure A is too slow to be practical in these situations, so
procedure B has been the best studied. Retries are observed at the approximate
rate of 0.7-0.8 failures/GB, mostly in the test7 multi-step transition checks.
.P
The probability that procedureB will fail two times in a row (in which case the
program will be terminated unless w option was specified) is 4e-7 which is
expected to happen at an approximate rate of once per 3,000 TB. When producing
large amounts of data in order of TBs it's recommended to use -w option to make
sure that program will not prematurely terminate because of a failed retry
and carefully examine the stderr output for any problems.
.P
.SH FILES
Tuning information may be extracted from the following virtual file paths if
tuning is required and the path exists.
.P
.RS
.I /proc/cpuinfo
.P
.I /proc/self/status
.P
.I /sys/devices/system/cpu/online
.P
.I /sys/devices/system/cpu/cpu%d/cache/index%d/level
.RE
.SH DIAGNOSTICS
To enable diagnostic output, supply a msg_out callback when creating the handle. All
possible errors are enumerated in havege.h and reproduced here for reference.
.P
.RE
.B 01 H_NOHANDLE
.RS
No memory for handle
.P
.RE
.B 02 H_NOBUF
.RS
Output buffer allocation failed
.P
.RE
.B 03 H_NOINIT
.RS
Semaphore init failed
.P
.RE
.B 04 H_NOCOLLECT
.RS
Collector allocation failed
.P
.RE
.B 05 H_NOWALK
.RS
Walk buffer allocation failed
.P
.RE
.B 06 H_NOTESTSPEC
.RS
Invalid test specification
.P
.RE
.B 07 H_NOTESTINIT
.RS
Test setup failed
.P
.RE
.B 08 H_NOTESTMEM
.RS
Unable to allocate test memory
.P
.RE
.B 09 H_NOTESTTOT
.RS
Power on (i.e. 'tot') test failed
.P
.RE
.B 10 H_NOTESTRUN
.RS
Continuous test failed
.P
.RE
.B 11 H_NOCORES
.RS
Too many cores specified
.P
.RE
.B 12 H_NOTASK
.RS
Unable to create child task
.P
.RE
.B 13 H_NOWAIT
.RS
sem_wait failed
.P
.RE
.B 14 H_NOPOST
.RS
sem_post failed
.P
.RE
.B 15 H_NODONE
.RS
sem_post done failed
.P
.RE
.B 16 H_NORQST
.RS
sem_post request failed
.P
.RE
.B 17 H_NOCOMP
.RS
wait for completion failed
.P
.RE
.B 18 H_EXIT
.RS
Exit signal
.P
.RE
.B 19 H_NOTIMER
.RS
Timer failed
.P
.RE
.RE
.SH EXAMPLE
The following minimal program writes the contents of 16 collection buffers
of random data to stdout with continuous testing.
.nf
#include <stdio.h>
#include <haveged/havege.h>
int main(void)
{
H_PTR havege_state;
H_PARAMS havege_parameters = {0};
int i, rc;
if (NULL==havege_version(HAVEGE_PREP_VERSION)) {
fprintf(stderr, "Incompatible library %s\\n", havege_version(NULL));
return 1;
}
havege_parameters.testSpec="ta8bcb";
havege_state = havege_create(&havege_parameters);
rc = havege_state==NULL? H_NOHANDLE : havege_state->error;
if (H_NOERR==rc) {
if (0==havege_run(havege_state)) {
H_UINT *buf = havege_state->io_buf;
int size = havege_state->i_readSz /sizeof(H_UINT);
char info[256];
for(i=0;i<16;i++) {
rc = havege_rng(havege_state, buf, size);
if (rc != size) {
fprintf(stderr, "RNG read failed %d\\n", havege_state->error);
break;
}
rc = fwrite(buf, 1, size*sizeof(H_UINT), stdout);
if ( rc < size ) {
fprintf(stderr, "Write failed\\n");
break;
}
}
i = havege_status_dump(havege_state, H_SD_TOPIC_TEST, info, sizeof(info));
info[i++] = '\\n';
havege_status_dump(havege_state, H_SD_TOPIC_SUM, info+i, sizeof(info)-i);
fprintf(stderr, "%s\\n", info);
}
else fprintf(stderr, "Initialize failed %d\\n", havege_state->error);
havege_destroy(havege_state);
}
else fprintf(stderr, "Create failed %d\\n", rc);
return rc;
}
.fi
Defaults are provided for all inputs to havege_create() as documented in havege.h. In this
case for example, (16*4kb=65kb) will be written to stdout because the default size for
i_readsz in 4kb.
.SH SEE ALSO
.TP
.BR haveged(8)
.SH REFERENCES
.B haveged(8)
references provides a basic reading list. The following links are suggested as sources for
further exploration.
.TP
The origins of the HAVEGE concept can be found at:
http://www.irisa.fr/caps/projects/hipsor/
.TP
Tuning concepts inspired by (the complexity) at:
http://www.open-mpi.org/projects/hwloc/
.TP
Reference documentation for the AIS-31 test suite can be found at:
https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Zertifizierung/Interpretationen/AIS_31_Functionality_classes_for_random_number_generators_e.pdf?__blob=publicationFile
.TP
Implementation and design information available at:
http://www.issihosts.com/haveged/
.SH AUTHORS
Gary Wuertz <gary@issiweb.com> and Jirka Hladky <hladky jiri AT gmail DOT com>

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/*
* This file was automatically generated by version 1.7 of cextract.
* Manual editing not recommended.
*
* Created: Fri Mar 31 19:17:33 1995
*/
extern double acosh ( double x );
extern int airy ( double x, double *ai, double *aip, double *bi, double *bip );
extern double asin ( double x );
extern double acos ( double x );
extern double asinh ( double x );
extern double atan ( double x );
extern double atan2 ( double y, double x );
extern double atanh ( double x );
extern double bdtrc ( int k, int n, double p );
extern double bdtr ( int k, int n, double p );
extern double bdtri ( int k, int n, double y );
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extern double lbeta ( double a, double b );
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extern double cbrt ( double x );
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// extern void clog ( cmplx *z, cmplx *w );
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extern void _cacos ( cmplx *z, cmplx *w );
extern void _catan ( cmplx *z, cmplx *w );
extern void cadd ( cmplx *a, cmplx *b, cmplx *c );
extern void csub ( cmplx *a, cmplx *b, cmplx *c );
extern void cmul ( cmplx *a, cmplx *b, cmplx *c );
extern void cdiv ( cmplx *a, cmplx *b, cmplx *c );
extern void cmov ( void *a, void *b );
extern void cneg ( cmplx *a );
//extern double _cabs ( cmplx *z );
extern void _csqrt ( cmplx *z, cmplx *w );
extern double hypot ( double x, double y );
extern double cosh ( double x );
extern double dawsn ( double xx );
extern void eigens ( double A[], double RR[], double E[], int N );
extern double ellie ( double phi, double m );
extern double ellik ( double phi, double m );
extern double ellpe ( double x );
extern int ellpj ( double u, double m, double *sn, double *cn, double *dn, double *ph );
extern double ellpk ( double x );
extern double exp ( double x );
extern double exp10 ( double x );
extern double exp1m ( double x );
extern double exp2 ( double x );
extern double expn ( int n, double x );
extern double fabs ( double x );
extern double fac ( int i );
extern double fdtrc ( int ia, int ib, double x );
extern double fdtr ( int ia, int ib, double x );
extern double fdtri ( int ia, int ib, double y );
extern int fftr ( double x[], int m0, double sine[] );
extern double ceil ( double x );
extern double floor ( double x );
extern double frexp ( double x, int *pw2 );
extern double ldexp ( double x, int pw2 );
extern int _signbit ( double x );
/* extern int isnan ( double x ); */
/*extern int isfinite ( double x );*/
extern int fresnl ( double xxa, double *ssa, double *cca );
extern double gamma ( double x );
extern double lgam ( double x );
extern double gdtr ( double a, double b, double x );
extern double gdtrc ( double a, double b, double x );
extern int gels ( double A[], double R[], int M, double EPS, double AUX[] );
extern double hyp2f1 ( double a, double b, double c, double x );
extern double hyperg ( double a, double b, double x );
extern double hyp2f0 ( double a, double b, double x, int type, double *err );
extern double i0 ( double x );
extern double i0e ( double x );
extern double i1 ( double x );
extern double i1e ( double x );
extern double igamc ( double a, double x );
extern double igam ( double a, double x );
extern double igami ( double a, double y0 );
extern double incbet ( double aa, double bb, double xx );
extern double incbi ( double aa, double bb, double yy0 );
extern double iv ( double v, double x );
extern double j0 ( double x );
extern double y0 ( double x );
extern double j1 ( double x );
extern double y1 ( double x );
extern double jn ( int n, double x );
extern double jv ( double n, double x );
extern double k0 ( double x );
extern double k0e ( double x );
extern double k1 ( double x );
extern double k1e ( double x );
extern double kn ( int nn, double x );
extern int levnsn ( int n, double r[], double a[], double e[], double refl[] );
extern double log ( double x );
extern double log10 ( double x );
extern double _log2 ( double x );
extern long lrand ( void );
extern long lsqrt ( long x );
extern int minv ( double A[], double X[], int n, double B[], int IPS[] );
extern int mmmpy ( int r, int c, double *A, double *B, double *Y );
extern int mtherr ( char *name, int code );
/*extern double polevl ( double x, void *P, int N );
extern double p1evl ( double x, void *P, int N );*/
extern int mtransp ( int n, double *A, double *T );
extern int mvmpy ( int r, int c, double *A, double *V, double *Y );
extern double nbdtrc ( int k, int n, double p );
extern double nbdtr ( int k, int n, double p );
extern double nbdtri ( int k, int n, double p );
extern double ndtr ( double a );
extern double erfc ( double a );
extern double erf ( double x );
extern double ndtri ( double y0 );
extern double pdtrc ( int k, double m );
extern double pdtr ( int k, double m );
extern double pdtri ( int k, double y );
extern double pow ( double x, double y );
extern double powi ( double x, int nn );
extern double psi ( double x );
extern void revers ( double y[], double x[], int n );
extern double rgamma ( double x );
extern double round ( double x );
extern int sprec ( void );
extern int dprec ( void );
extern int ldprec ( void );
extern int shichi ( double x, double *si, double *ci );
extern int sici ( double x, double *si, double *ci );
extern double simpsn ( double f[], double delta );
extern int simq ( double A[], double B[], double X[], int n, int flag, int IPS[] );
extern double sin ( double x );
extern double cos ( double x );
extern double radian ( double d, double m, double s );
/*
extern int sincos ( double x, double *s, double *c, int flg );
*/
extern double sindg ( double x );
extern double cosdg ( double x );
extern double sinh ( double x );
extern double spence ( double x );
extern double sqrt ( double x );
extern double stdtr ( int k, double t );
extern double stdtri ( int k, double p );
extern double onef2 ( double a, double b, double c, double x, double *err );
extern double threef0 ( double a, double b, double c, double x, double *err );
extern double struve ( double v, double x );
extern double tan ( double x );
extern double cot ( double x );
extern double tandg ( double x );
extern double cotdg ( double x );
extern double tanh ( double x );
extern double log1p ( double x );
extern double expm1 ( double x );
extern double cosm1 ( double x );
extern double yn ( int n, double x );
extern double zeta ( double x, double q );
extern double zetac ( double x );
extern int drand ( double *a );
/* polyn.c */
extern void polini ( int maxdeg );
extern void polprt ( double a[], int na, int d );
extern void polclr ( double *a, int n );
extern void polmov ( double *a, int na, double *b );
extern void polmul ( double a[], int na, double b[], int nb, double c[] );
extern void poladd ( double a[], int na, double b[], int nb, double c[] );
extern void polsub ( double a[], int na, double b[], int nb, double c[] );
extern int poldiv ( double a[], int na, double b[], int nb, double c[] );
extern void polsbt ( double a[], int na, double b[], int nb, double c[] );
extern double poleva ( double a[], int na, double x );
/* polmisc.c */
extern void polatn ( double num[], double den[], double ans[], int nn );
extern void polsqt ( double pol[], double ans[], int nn );
extern void polsin ( double x[], double y[], int nn );
extern void polcos ( double x[], double y[], int nn );

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#include <stdio.h>
#include <stdlib.h>
/*#include "defs.h"
#include "proto.h"*/
#define MIN(x,y) ((x) > (y) ? (y) : (x))
#include "matrix.h"
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
R A N K A L G O R I T H M R O U T I N E S
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int computeRank(int M, int Q, BitField** matrix)
{
int i;
int rank;
int m = MIN(M,Q);
/* FORWARD APPLICATION OF ELEMENTARY ROW OPERATIONS */
for(i = 0; i < m-1; i++) {
if (matrix[i][i].b == 1)
perform_elementary_row_operations(0, i, M, Q, matrix);
else { /* matrix[i][i] = 0 */
if (find_unit_element_and_swap(0, i, M, Q, matrix) == 1)
perform_elementary_row_operations(0, i, M, Q, matrix);
}
}
/* BACKWARD APPLICATION OF ELEMENTARY ROW OPERATIONS */
for(i = m-1; i > 0; i--) {
if (matrix[i][i].b == 1)
perform_elementary_row_operations(1, i, M, Q, matrix);
else { /* matrix[i][i] = 0 */
if (find_unit_element_and_swap(1, i, M, Q, matrix) == 1)
perform_elementary_row_operations(1, i, M, Q, matrix);
}
}
rank = determine_rank(m,M,Q,matrix);
return rank;
}
void perform_elementary_row_operations(int flag, int i, int M, int Q,
BitField** A)
{
int j,k;
switch(flag)
{
case 0: for(j = i+1; j < M; j++)
if (A[j][i].b == 1)
for(k = i; k < Q; k++)
A[j][k].b = (A[j][k].b + A[i][k].b) % 2;
break;
case 1: for(j = i-1; j >= 0; j--)
if (A[j][i].b == 1)
for(k = 0; k < Q; k++)
A[j][k].b = (A[j][k].b + A[i][k].b) % 2;
break;
default: fprintf(stderr,"ERROR IN CALL TO perform_elementary_row_operations\n");
break;
}
return;
}
int find_unit_element_and_swap(int flag, int i, int M, int Q, BitField** A)
{
int index;
int row_op = 0;
switch(flag)
{
case 0: index = i+1;
while ((index < M) && (A[index][i].b == 0))
index++;
if (index < M)
row_op = swap_rows(i,index,Q,A);
break;
case 1:
index = i-1;
while ((index >= 0) && (A[index][i].b == 0))
index--;
if (index >= 0)
row_op = swap_rows(i,index,Q,A);
break;
default: fprintf(stderr,"ERROW IN CALL TO find_unit_element_and_swap\n");
break;
}
return row_op;
}
int swap_rows(int i, int index, int Q, BitField** A)
{
int p;
BitField temp;
for(p = 0; p < Q; p++) {
temp.b = A[i][p].b;
A[i][p].b = A[index][p].b;
A[index][p].b = temp.b;
}
return 1;
}
int determine_rank(int m, int M, int Q, BitField** A)
{
int i, j, rank, allZeroes;
/* DETERMINE RANK, THAT IS, COUNT THE NUMBER OF NONZERO ROWS */
rank = m;
for(i = 0; i < M; i++) {
allZeroes = 1;
for(j=0; j < Q; j++) {
if (A[i][j].b == 1) {
allZeroes = 0;
break;
}
}
if (allZeroes == 1) rank--;
}
return rank;
}
void display_matrix(int M, int Q, BitField** m)
{
int i,j;
for (i = 0; i < M; i++) {
for (j = 0; j < Q; j++)
fprintf(stderr,"%d ", m[i][j].b);
fprintf(stderr,"\n");
}
return;
}
void def_matrix(int M, int Q, BitField** m,int k, int *pt, int *PT, int*DATA, int *ARRAY)
{
int i,j;
for (i = 0; i < M; i++)
for (j = 0; j < Q; j++) {
m[i][j].b = *DATA & 1;
(*PT)++;
if ((*PT) == 32)
{
*PT = 0;
(*pt)++;
*DATA = ARRAY[*pt];
}
else
*DATA = (*DATA) >> 1;
}
return;
}
void delete_matrix(int M, BitField** matrix)
{
int i;
for (i = 0; i < M; i++)
free(matrix[i]);
free(matrix);
}

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
R A N K A L G O R I T H M F U N C T I O N P R O T O T Y P E S
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
struct bit {
unsigned char b:1;
};
typedef struct bit BitField;
void perform_elementary_row_operations(int,int,int,int,BitField**);
int find_unit_element_and_swap(int,int,int,int, BitField**);
int swap_rows(int, int, int, BitField**);
int determine_rank(int, int, int, BitField**);
int computeRank(int,int,BitField**);
void define_matrix(int,int,int,BitField**);
BitField** create_matrix(int, int);
void display_matrix(int, int, BitField**);
void def_matrix(int M, int Q, BitField** m,int k, int *pt, int *PT, int*DATA, int *ARRAY);
void delete_matrix(int, BitField**);

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/* mconf.h
*
* Common include file for math routines
*
*
*
* SYNOPSIS:
*
* #include "mconf.h"
*
*
*
* DESCRIPTION:
*
* This file contains definitions for error codes that are
* passed to the common error handling routine mtherr()
* (which see).
*
* The file also includes a conditional assembly definition
* for the type of computer arithmetic (IEEE, DEC, Motorola
* IEEE, or UNKnown).
*
* For Digital Equipment PDP-11 and VAX computers, certain
* IBM systems, and others that use numbers with a 56-bit
* significand, the symbol DEC should be defined. In this
* mode, most floating point constants are given as arrays
* of octal integers to eliminate decimal to binary conversion
* errors that might be introduced by the compiler.
*
* For little-endian computers, such as IBM PC, that follow the
* IEEE Standard for Binary Floating Point Arithmetic (ANSI/IEEE
* Std 754-1985), the symbol IBMPC should be defined. These
* numbers have 53-bit significands. In this mode, constants
* are provided as arrays of hexadecimal 16 bit integers.
*
* Big-endian IEEE format is denoted MIEEE. On some RISC
* systems such as Sun SPARC, double precision constants
* must be stored on 8-byte address boundaries. Since integer
* arrays may be aligned differently, the MIEEE configuration
* may fail on such machines.
*
* To accommodate other types of computer arithmetic, all
* constants are also provided in a normal decimal radix
* which one can hope are correctly converted to a suitable
* format by the available C language compiler. To invoke
* this mode, define the symbol UNK.
*
* An important difference among these modes is a predefined
* set of machine arithmetic constants for each. The numbers
* MACHEP (the machine roundoff error), MAXNUM (largest number
* represented), and several other parameters are preset by
* the configuration symbol. Check the file const.c to
* ensure that these values are correct for your computer.
*
* Configurations NANS, INFINITIES, MINUSZERO, and DENORMAL
* may fail on many systems. Verify that they are supposed
* to work on your computer.
*/
/*
Cephes Math Library Release 2.3: June, 1995
Copyright 1984, 1987, 1989, 1995 by Stephen L. Moshier
*/
/* Constant definitions for math error conditions
*/
#ifndef DOMAIN
#define DOMAIN 1 /* argument domain error */
#define SING 2 /* argument singularity */
#define OVERFLOW 3 /* overflow range error */
#define UNDERFLOW 4 /* underflow range error */
#define TLOSS 5 /* total loss of precision */
#define PLOSS 6 /* partial loss of precision */
#define EDOM 33
#define ERANGE 34
#endif
/* Complex numeral. */
typedef struct
{
double r;
double i;
} cmplx;
/* Long double complex numeral. */
/*
typedef struct
{
long double r;
long double i;
} cmplxl;
*/
/* Type of computer arithmetic */
/* PDP-11, Pro350, VAX:
*/
/* #define DEC 1 */
/* Intel IEEE, low order words come first:
*/
/*#define IBMPC 1 */
/* Motorola IEEE, high order words come first
* (Sun 680x0 workstation):
*/
/* #define MIEEE 1 */
/* UNKnown arithmetic, invokes coefficients given in
* normal decimal format. Beware of range boundary
* problems (MACHEP, MAXLOG, etc. in const.c) and
* roundoff problems in pow.c:
* (Sun SPARCstation)
*/
#define UNK 1
/* If you define UNK, then be sure to set BIGENDIAN properly. */
#define BIGENDIAN 0
/* Define this `volatile' if your compiler thinks
* that floating point arithmetic obeys the associative
* and distributive laws. It will defeat some optimizations
* (but probably not enough of them).
*
* #define VOLATILE volatile
*/
#define VOLATILE
/* For 12-byte long doubles on an i386, pad a 16-bit short 0
* to the end of real constants initialized by integer arrays.
*
* #define XPD 0,
*
* Otherwise, the type is 10 bytes long and XPD should be
* defined blank (e.g., Microsoft C).
*
* #define XPD
*/
#define XPD 0,
/* Define to support tiny denormal numbers, else undefine. */
#define DENORMAL 1
/* Define to ask for infinity support, else undefine. */
/* #define INFINITIES 1 */
/* Define to ask for support of numbers that are Not-a-Number,
else undefine. This may automatically define INFINITIES in some files. */
/* #define NANS 1 */
/* Define to distinguish between -0.0 and +0.0. */
/* #define MINUSZERO 1 */
/* Define 1 for ANSI C atan2() function
See atan.c and clog.c. */
#define ANSIC 1
/* Get ANSI function prototypes, if you want them. */
#ifdef __STDC__
#define ANSIPROT
#include "cephes-protos.h"
#else
int mtherr();
#endif
/* Variable for error reporting. See mtherr.c. */
extern int merror;

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "nist.h"
#define _32MB (32 * 1024 * 1024)
#define _08MB (8 * 1024 * 1024)
#define _04MB (4 * 1024 * 1024)
#define _02MB (2 * 1024 * 1024)
static int random_pool1 [_32MB];
char basedirname[FILENAME_MAX+1];
char *GetBaseDir(void)
{
return basedirname;
}
int main(int argc, char **argv)
{
char *filename = "";
FILE *fp = stdin;
long result=0;
if (argc<2 || argc>3) {
printf("Usage sts <file> [<template directory>]\n");
return 1;
}
/**
* get optional directory name
*/
basedirname[0] = 0;
if (argc>2) {
strcat(basedirname, argv[2]);
strcat(basedirname, "/");
}
filename = argv[1];
if ((fp = fopen(filename, "rb")) == NULL) {
printf("Cannot open file %s\n", filename);
return 2;
}
result = fread(random_pool1,sizeof(int),_04MB,fp);
fclose(fp);
if (result!=_04MB) {
printf("16MB sample required %ld != %d\n",result, _04MB);
return 3;
}
if (PackTestF (random_pool1, _04MB, "nist.out") < 8) {
if (PackTestL (random_pool1, _04MB, "nist.out") < 8)
return 0;
return 5;
}
return 4;
}

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/**
* Supply function prototypes for the test suite.
*/
int PackTestF (int *ARRAY, int ArraySize, char *C);
int PackTestL (int *ARRAY, int ArraySize, char *C);
int ApproximateEntropy (int mmin, int mmax, int n, int *ARRAY);
int BlockFrequency (int ArraySize, int m, int *ARRAY);
int CumulativeSums (int n, int *ARRAY);
int DiscreteFourierTransform (int N, int *ARRAY);
int Frequency (int n, int *ARRAY);
int LempelZivCompression (int n, int *ARRAY, int *DATA, int *pt, int *PT);
int LinearComplexity (int M, int N, int *ARRAY, int PT);
int LongestRunOfOnes (int n, int *ARRAY);
int NonOverlappingTemplateMatchings (int m, int n, int *ARRAY);
int OverlappingTemplateMatchings (int m, int n, int *ARRAY);
int RandomExcursions (int n, int *ARRAY);
int RandomExcursionsVariant (int n, int *ARRAY);
int Rank (int n, int *ARRAY);
int Runs (int n, int *ARRAY);
int Serial (int m, int n, int *ARRAY, int PT);
int UNIVERSAL (int n, int *ARRAY);
int Universal (int n, int *ARRAY);
double psi2 (int m, int n, int *ARRAY, int PT);
/**
* From dfft.c
*/
void __ogg_fdrffti(int n, double *wsave, int *ifac);
void __ogg_fdrfftf(int n,double *r,double *wsave,int *ifac);
char *GetBaseDir(void);

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#include <stdio.h>
#include <math.h>
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
S P E C I A L F U N C T I O N S
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#define LinuxorUnix
#ifdef WIN
#ifndef CYGWIN
#undef LinuxorUnix
/* same libraries are available*/
#endif
#endif
#ifdef LinuxorUnix
double normal(double x)
{
double arg, result, sqrt2=1.414213562373095048801688724209698078569672;
if (x > 0) {
arg = x/sqrt2;
result = 0.5 * ( 1 + erf(arg) );
}
else {
arg = -x/sqrt2;
result = 0.5 * ( 1 - erf(arg) );
}
return( result);
}
double normal2(double a)
{ return (1.0-0.5*erfc(a/sqrt(2.0))); }
#endif

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
S P E C I A L F U N C T I O N P R O T O T Y P E S
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
double derf_(); /* ERROR FUNCTION */
double derfc(); /* COMPLEMENTARY ERROR */
double normal(double); /* NORMAL DISTRIBUTION */
double normal2(double); /* NORMAL DISTRIBUTION */
/*
double gser(double,double,double,double);
double gcf(double,double,double,double);
double gammln(double); LOG GAMMA FUNCTION
double gammq(double,double); INCOMPLETE GAMMA FUNCTION
*/

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0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 1 1
0 0 0 0 0 0 1 0 1
0 0 0 0 0 0 1 1 1
0 0 0 0 0 1 0 0 1
0 0 0 0 0 1 0 1 1
0 0 0 0 0 1 1 0 1
0 0 0 0 0 1 1 1 1
0 0 0 0 1 0 0 0 1
0 0 0 0 1 0 0 1 1
0 0 0 0 1 0 1 0 1
0 0 0 0 1 0 1 1 1
0 0 0 0 1 1 0 0 1
0 0 0 0 1 1 0 1 1
0 0 0 0 1 1 1 0 1
0 0 0 0 1 1 1 1 1
0 0 0 1 0 0 0 1 1
0 0 0 1 0 0 1 0 1
0 0 0 1 0 0 1 1 1
0 0 0 1 0 1 0 0 1
0 0 0 1 0 1 0 1 1
0 0 0 1 0 1 1 0 1
0 0 0 1 0 1 1 1 1
0 0 0 1 1 0 0 1 1
0 0 0 1 1 0 1 0 1
0 0 0 1 1 0 1 1 1
0 0 0 1 1 1 0 0 1
0 0 0 1 1 1 0 1 1
0 0 0 1 1 1 1 0 1
0 0 0 1 1 1 1 1 1
0 0 1 0 0 0 0 1 1
0 0 1 0 0 0 1 0 1
0 0 1 0 0 0 1 1 1
0 0 1 0 0 1 0 1 1
0 0 1 0 0 1 1 0 1
0 0 1 0 0 1 1 1 1
0 0 1 0 1 0 0 1 1
0 0 1 0 1 0 1 0 1
0 0 1 0 1 0 1 1 1
0 0 1 0 1 1 0 1 1
0 0 1 0 1 1 1 0 1
0 0 1 0 1 1 1 1 1
0 0 1 1 0 0 1 0 1
0 0 1 1 0 0 1 1 1
0 0 1 1 0 1 0 1 1
0 0 1 1 0 1 1 0 1
0 0 1 1 0 1 1 1 1
0 0 1 1 1 0 1 0 1
0 0 1 1 1 0 1 1 1
0 0 1 1 1 1 0 1 1
0 0 1 1 1 1 1 0 1
0 0 1 1 1 1 1 1 1
0 1 0 0 0 0 0 1 1
0 1 0 0 0 0 1 1 1
0 1 0 0 0 1 0 1 1
0 1 0 0 0 1 1 1 1
0 1 0 0 1 0 0 1 1
0 1 0 0 1 0 1 1 1
0 1 0 0 1 1 0 1 1
0 1 0 0 1 1 1 1 1
0 1 0 1 0 0 0 1 1
0 1 0 1 0 0 1 1 1
0 1 0 1 0 1 0 1 1
0 1 0 1 0 1 1 1 1
0 1 0 1 1 0 0 1 1
0 1 0 1 1 0 1 1 1
0 1 0 1 1 1 0 1 1
0 1 0 1 1 1 1 1 1
0 1 1 0 0 0 1 1 1
0 1 1 0 0 1 1 1 1
0 1 1 0 1 0 1 1 1
0 1 1 0 1 1 1 1 1
0 1 1 1 0 1 1 1 1
0 1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0 0
1 0 0 0 1 0 0 0 0
1 0 0 1 0 0 0 0 0
1 0 0 1 0 1 0 0 0
1 0 0 1 1 0 0 0 0
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/*
* Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 3, or (at your option) any
* later version.
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* Under Section 7 of GPL version 3, you are granted additional
* permissions described in the GCC Runtime Library Exception, version
* 3.1, as published by the Free Software Foundation.
*
* You should have received a copy of the GNU General Public License and
* a copy of the GCC Runtime Library Exception along with this program;
* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
* <http://www.gnu.org/licenses/>.
*/
/* %ecx */
#define bit_SSE3 (1 << 0)
#define bit_PCLMUL (1 << 1)
#define bit_SSSE3 (1 << 9)
#define bit_FMA (1 << 12)
#define bit_CMPXCHG16B (1 << 13)
#define bit_SSE4_1 (1 << 19)
#define bit_SSE4_2 (1 << 20)
#define bit_MOVBE (1 << 22)
#define bit_POPCNT (1 << 23)
#define bit_AES (1 << 25)
#define bit_XSAVE (1 << 26)
#define bit_OSXSAVE (1 << 27)
#define bit_AVX (1 << 28)
/* %edx */
#define bit_CMPXCHG8B (1 << 8)
#define bit_CMOV (1 << 15)
#define bit_MMX (1 << 23)
#define bit_FXSAVE (1 << 24)
#define bit_SSE (1 << 25)
#define bit_SSE2 (1 << 26)
/* Extended Features */
/* %ecx */
#define bit_LAHF_LM (1 << 0)
#define bit_ABM (1 << 5)
#define bit_SSE4a (1 << 6)
#define bit_XOP (1 << 11)
#define bit_LWP (1 << 15)
#define bit_FMA4 (1 << 16)
/* %edx */
#define bit_LM (1 << 29)
#define bit_3DNOWP (1 << 30)
#define bit_3DNOW (1 << 31)
#if defined(__i386__) && defined(__PIC__)
/* %ebx may be the PIC register. */
#if __GNUC__ >= 3
#define __cpuid(level, a, b, c, d) \
__asm__ ("xchg{l}\t{%%}ebx, %1\n\t" \
"cpuid\n\t" \
"xchg{l}\t{%%}ebx, %1\n\t" \
: "=a" (a), "=r" (b), "=c" (c), "=d" (d) \
: "0" (level))
#define __cpuid_count(level, count, a, b, c, d) \
__asm__ ("xchg{l}\t{%%}ebx, %1\n\t" \
"cpuid\n\t" \
"xchg{l}\t{%%}ebx, %1\n\t" \
: "=a" (a), "=r" (b), "=c" (c), "=d" (d) \
: "0" (level), "2" (count))
#else
/* Host GCCs older than 3.0 weren't supporting Intel asm syntax
nor alternatives in i386 code. */
#define __cpuid(level, a, b, c, d) \
__asm__ ("xchgl\t%%ebx, %1\n\t" \
"cpuid\n\t" \
"xchgl\t%%ebx, %1\n\t" \
: "=a" (a), "=r" (b), "=c" (c), "=d" (d) \
: "0" (level))
#define __cpuid_count(level, count, a, b, c, d) \
__asm__ ("xchgl\t%%ebx, %1\n\t" \
"cpuid\n\t" \
"xchgl\t%%ebx, %1\n\t" \
: "=a" (a), "=r" (b), "=c" (c), "=d" (d) \
: "0" (level), "2" (count))
#endif
#else
#define __cpuid(level, a, b, c, d) \
__asm__ ("cpuid\n\t" \
: "=a" (a), "=b" (b), "=c" (c), "=d" (d) \
: "0" (level))
#define __cpuid_count(level, count, a, b, c, d) \
__asm__ ("cpuid\n\t" \
: "=a" (a), "=b" (b), "=c" (c), "=d" (d) \
: "0" (level), "2" (count))
#endif
/* Return highest supported input value for cpuid instruction. ext can
be either 0x0 or 0x8000000 to return highest supported value for
basic or extended cpuid information. Function returns 0 if cpuid
is not supported or whatever cpuid returns in eax register. If sig
pointer is non-null, then first four bytes of the signature
(as found in ebx register) are returned in location pointed by sig. */
static __inline unsigned int
__get_cpuid_max (unsigned int __ext, unsigned int *__sig)
{
unsigned int __eax, __ebx, __ecx, __edx;
#ifndef __x86_64__
/* See if we can use cpuid. On AMD64 we always can. */
#if __GNUC__ >= 3
__asm__ ("pushf{l|d}\n\t"
"pushf{l|d}\n\t"
"pop{l}\t%0\n\t"
"mov{l}\t{%0, %1|%1, %0}\n\t"
"xor{l}\t{%2, %0|%0, %2}\n\t"
"push{l}\t%0\n\t"
"popf{l|d}\n\t"
"pushf{l|d}\n\t"
"pop{l}\t%0\n\t"
"popf{l|d}\n\t"
: "=&r" (__eax), "=&r" (__ebx)
: "i" (0x00200000));
#else
/* Host GCCs older than 3.0 weren't supporting Intel asm syntax
nor alternatives in i386 code. */
__asm__ ("pushfl\n\t"
"pushfl\n\t"
"popl\t%0\n\t"
"movl\t%0, %1\n\t"
"xorl\t%2, %0\n\t"
"pushl\t%0\n\t"
"popfl\n\t"
"pushfl\n\t"
"popl\t%0\n\t"
"popfl\n\t"
: "=&r" (__eax), "=&r" (__ebx)
: "i" (0x00200000));
#endif
if (!((__eax ^ __ebx) & 0x00200000))
return 0;
#endif
/* Host supports cpuid. Return highest supported cpuid input value. */
__cpuid (__ext, __eax, __ebx, __ecx, __edx);
if (__sig)
*__sig = __ebx;
return __eax;
}
/* Return cpuid data for requested cpuid level, as found in returned
eax, ebx, ecx and edx registers. The function checks if cpuid is
supported and returns 1 for valid cpuid information or 0 for
unsupported cpuid level. All pointers are required to be non-null. */
static __inline int
__get_cpuid (unsigned int __level,
unsigned int *__eax, unsigned int *__ebx,
unsigned int *__ecx, unsigned int *__edx)
{
unsigned int __ext = __level & 0x80000000;
if (__get_cpuid_max (__ext, 0) < __level)
return 0;
__cpuid (__level, *__eax, *__ebx, *__ecx, *__edx);
return 1;
}

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/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2014 Gary Wuertz gary@issiweb.com
** Copyright 2011-2012 BenEleventh Consulting manolson@beneleventh.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
*/
/**
* This compile unit implements the havege algorithm as an inteface to
* either a single collector in the calling process or an interface to
* multiple collector processes (experimental).
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
#include "havegetest.h"
#include "havegetune.h"
/**
* The library version interface results in a pair of version definitions
* which must agree yet must also be string literals. No foolproof build
* mechanism could be devised to ensure this, so a run-time check was added
* instead - if the two definitions do not agree, the interface is diabled.
*/
#define INTERFACE_DISABLED() strcmp(PACKAGE_VERSION,HAVEGE_PREP_VERSION)
#if NUMBER_CORES>1
#include <errno.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <semaphore.h>
#include <sched.h>
/**
* Collection thread directory
*/
typedef struct {
pid_t main; /* the main thread */
H_UINT exit_ct; /* shutdown counter */
H_UINT count; /* associated count */
H_UINT last; /* last output */
H_UINT *out; /* buffer pointer */
H_UINT fatal; /* fatal error in last */
sem_t flags[1]; /* thread signals */
} H_THREAD;
/**
* Local prototypes
*/
static int havege_exit(H_PTR h_ptr);
static void havege_ipc(H_PTR h_ptr, H_UINT n, H_UINT sz);
static int havege_rngChild(H_PTR h_ptr, H_UINT cNumber);
static void havege_unipc(H_PTR h_ptr);
#endif
/**
* Main allocation
*/
#ifdef ONLINE_TESTS_ENABLE
typedef struct {
struct h_anchor info; /* Application anchor */
HOST_CFG cfg; /* Runtime environment */
procShared std; /* Shared test data */
} H_SETUP;
static int testsConfigure(H_UINT *tot, H_UINT *run, char *options);
static void testsStatus(procShared *tps, char *tot, char *prod);
static void testReport(H_COLLECT * h_ctxt, H_UINT action, H_UINT prod, H_UINT state, H_UINT ct);
static void testReportA(H_PTR h, procA *context);
static void testReportB(H_PTR h, procB *context);
#else
typedef struct {
struct h_anchor info; /* Application anchor */
HOST_CFG cfg; /* Runtime environment */
} H_SETUP;
#endif
/**
* Local prototypes
*/
static void havege_mute(const char *format, ...);
/**
* Initialize the environment based upon the tuning survey. This includes,
* allocation the output buffer (in shared memory if mult-threaded) and
* fitting the collection code to the tuning inputs.
*/
H_PTR havege_create( /* RETURN: app state */
H_PARAMS *params) /* IN: input params */
{
H_SETUP *anchor;
HOST_CFG *env;
H_PTR h = 0;
H_UINT n = params->nCores;
H_UINT sz = params->ioSz;
if (INTERFACE_DISABLED())
return NULL;
if (0 == n)
n = 1;
if (0 == sz)
sz = DEFAULT_BUFSZ;
anchor = (H_SETUP *)calloc(sizeof(H_SETUP),1);
if (NULL==anchor)
return h;
h = &anchor->info;
h->print_msg = params->msg_out==0? havege_mute : params->msg_out;
h->metering = params->metering;
env = &anchor->cfg;
havege_tune(env, params);
h->error = H_NOERR;
h->arch = ARCH;
h->inject = params->injection;
h->n_cores = n;
h->havege_opts = params->options;
h->i_collectSz = params->collectSize==0? NDSIZECOLLECT : params->collectSize;
h->i_readSz = sz;
h->tuneData = env;
h->cpu = &env->cpus[env->a_cpu];
h->instCache = &env->caches[env->i_tune];
h->dataCache = &env->caches[env->d_tune];
#ifdef ONLINE_TESTS_ENABLE
{
static const H_UINT tests[5] = {B_RUN, A_RUN};
H_UINT tot=0,run=0;
H_UINT i, j;
procShared *tps = (procShared *)&anchor->std;
if (testsConfigure(&tot, &run, params->testSpec)) {
h->error = H_NOTESTSPEC;
return h;
}
for(i=j=0;i<2;i++)
if (0!=(tot & tests[i])) {
tps->testsUsed |= tests[i];
tps->totTests[j].action = tests[i];
tps->totTests[j++].options = tot;
}
for(i=j=0;i<2;i++)
if (0!=(run & tests[i])) {
tps->testsUsed |= tests[i];
tps->runTests[j].action = tests[i];
tps->runTests[j++].options = run;
}
testsStatus(tps, tps->totText, tps->prodText);
tps->report = testReport;
h->testData = tps;
if (havege_test(tps, params)) {
h->error = H_NOTESTMEM;
return h;
}
}
#endif
#if NUMBER_CORES>1
havege_ipc(h, n, sz);
#else
h->io_buf = malloc(sz);
h->threads = NULL;
#endif
if (NULL==h->io_buf) {
h->error = H_NOBUF;
return h;
}
havege_ndsetup(h);
return h;
}
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
void havege_reparent(
H_PTR hptr)
{
#if NUMBER_CORES>1
H_THREAD *t = (H_THREAD *)hptr->threads;
if (0 == t)
return; /* single-threaded */
t->main = getpid();
#endif
}
#pragma GCC diagnostic pop
/**
* Destructor. In a multi-collector build, this method should be called from a signal handler
* to avoid creating processes.
*/
void havege_destroy( /* RETURN: none */
H_PTR hptr) /* IN-OUT: app anchor */
{
if (NULL != hptr) {
H_COLLECT *htemp;
void *temp;
#if NUMBER_CORES>1
if (!havege_exit(hptr))
return; /* only main thread continues */
#endif
if (0 != (temp=hptr->io_buf)) {
hptr->io_buf = 0;
free(temp);
}
#ifdef ONLINE_TESTS_ENABLE
if (0 != (temp=hptr->testData)) {
double *g = ((procShared *)temp)->G;
hptr->testData = 0;
if (0 != g)
free(g);
}
#endif
if (0 != (htemp=hptr->collector)) {
hptr->collector = 0;
havege_nddestroy(htemp);
}
free(hptr);
}
}
/**
* Read random words. In the single-collector case, input is read by the calling
* the collection method directly. In the multi-collector case, the request info is
* signaled to the collector last read and the caller waits for a completion signal.
*/
int havege_rng( /* RETURN: number words read */
H_PTR h, /* IN-OUT: app state */
H_UINT *buffer, /* OUT: read buffer */
H_UINT sz) /* IN: number words to read */
{
#if NUMBER_CORES>1
H_THREAD *t = (H_THREAD *) h->threads;
t->count = sz;
t->out = buffer;
if (0!=sem_post(&t->flags[t->last]))
h->error = H_NORQST;
else if (0!=sem_wait(&t->flags[h->n_cores]))
h->error = H_NOCOMP;
else if (H_NOERR != t->fatal)
h->error = t->fatal;
#else
H_UINT i;
for(i=0;i<sz;i++)
buffer[i] = havege_ndread((H_COLLECT *)h->collector);
h->error = ((H_COLLECT *)h->collector)->havege_err;
#endif
return h->error==(H_UINT)H_NOERR? (int) sz : -1;
}
/**
* Start the entropy collector.
*/
int havege_run( /* RETURN: NZ on failure */
H_PTR h) /* IN-OUT: app anchor */
{
int i = 0;
#if NUMBER_CORES>1
for(i = 0; i < h->n_cores;i++)
if (0 == havege_rngChild(h, i))
return 1;
#else
if (NULL==(h->collector = havege_ndcreate(h, i)))
return 1;
#endif
return 0;
}
/**
* Report concealed setup data
*/
void havege_status( /* RETURN: none */
H_PTR h_ptr, /* IN: app state */
H_STATUS h_sts) /* OUT: app state */
{
if (0 != h_sts) {
HOST_CFG *en = (HOST_CFG *) (h_ptr->tuneData);
CACHE_INST *cd = (CACHE_INST *)(h_ptr->dataCache);
CACHE_INST *ci = (CACHE_INST *)(h_ptr->instCache);
CPU_INST *cp = (CPU_INST *) (h_ptr->cpu);
procShared *ps = (procShared *)(h_ptr->testData);
h_sts->version = HAVEGE_PREP_VERSION;
h_sts->buildOptions = en->buildOpts;
h_sts->cpuSources = en->cpuOpts;
h_sts->i_cacheSources = en->icacheOpts;
h_sts->d_cacheSources = en->dcacheOpts;
h_sts->vendor = cp->vendor;
h_sts->d_cache = cd->size;
h_sts->i_cache = ci->size;
h_sts->tot_tests = (0 != ps)? ps->totText :"";
h_sts->prod_tests = (0 != ps)? ps->prodText :"";
if (0 != ps) {
memcpy(h_sts->n_tests, ps->meters, (H_OLT_PROD_B_P+1) * sizeof(H_UINT));
h_sts->last_test8 = ps->lastCoron;
}
}
}
/**
* Standard status presetations
*/
int havege_status_dump( /* RETURN: output length */
H_PTR hptr, /* IN: app state */
H_SD_TOPIC topic, /* IN: presentation topic */
char *buf, /* OUT: output area */
size_t len) /* IN: size of buf */
{
struct h_status status;
int n = 0;
if (buf != 0) {
*buf = 0;
len -= 1;
havege_status(hptr, &status);
switch(topic) {
case H_SD_TOPIC_BUILD:
n += snprintf(buf, len, "ver: %s; arch: %s; vend: %s; build: (%s); collect: %uK",
status.version,
hptr->arch,
status.vendor,
status.buildOptions,
hptr->i_collectSz/1024
);
break;
case H_SD_TOPIC_TUNE:
n += snprintf(buf, len, "cpu: (%s); data: %uK (%s); inst: %uK (%s); idx: %u/%u; sz: %u/%u",
status.cpuSources,
status.d_cache,
status.d_cacheSources,
status.i_cache,
status.i_cacheSources,
hptr->i_maxidx - hptr->i_idx, hptr->i_maxidx,
hptr->i_sz, hptr->i_maxsz
);
break;
case H_SD_TOPIC_TEST:
{
H_UINT m;
if (strlen(status.tot_tests)>0) {
n += snprintf(buf+n, len-n, "tot tests(%s): ", status.tot_tests);
if ((m = status.n_tests[ H_OLT_TOT_A_P] + status.n_tests[ H_OLT_TOT_A_F])>0)
n += snprintf(buf+n, len-n, "A:%u/%u ", status.n_tests[ H_OLT_TOT_A_P], m);
if ((m = status.n_tests[ H_OLT_TOT_B_P] + status.n_tests[ H_OLT_TOT_B_F])>0)
n += snprintf(buf+n, len, "B:%u/%u ", status.n_tests[ H_OLT_TOT_B_P], m);
}
if (strlen(status.prod_tests)>0) {
n += snprintf(buf+n, len-n, "continuous tests(%s): ", status.prod_tests);
if ((m = status.n_tests[ H_OLT_PROD_A_P] + status.n_tests[ H_OLT_PROD_A_F])>0)
n += snprintf(buf+n, len-n, "A:%u/%u ", status.n_tests[ H_OLT_PROD_A_P], m);
if ((m = status.n_tests[ H_OLT_PROD_B_P] + status.n_tests[ H_OLT_PROD_B_F])>0)
n += snprintf(buf+n, len, "B:%u/%u ", status.n_tests[ H_OLT_PROD_B_P], m);
}
if (n>0)
n += snprintf(buf+n, len-n, " last entropy estimate %g", status.last_test8);
}
break;
case H_SD_TOPIC_SUM:
{
char units[] = {'T', 'G', 'M', 'K', 0};
double factor = 1024.0 * 1024.0 * 1024.0 * 1024.0;
double sz = ((double)hptr->n_fills * hptr->i_collectSz) * sizeof(H_UINT);
int i;
for (i=0;0 != units[i];i++) {
if (sz >= factor)
break;
factor /= 1024.0;
}
n = snprintf(buf, len, "fills: %u, generated: %.4g %c bytes",
hptr->n_fills,
sz / factor,
units[i]
);
}
break;
}
}
return n;
}
/**
* Return-check library prep version. Calling havege_version() with a NULL version
* returns the definition of HAVEGE_PREP_VERSION used to build the library. Calling
* with HAVEGE_PREP_VERSION as the version checks if this headers definition is
* compatible with that of the library, returning NULL if the input is incompatible
* with the library.
*/
const char *havege_version(const char *version)
{
if (INTERFACE_DISABLED())
return NULL;
/**
* Version check academic at the moment, but initial idea is to do a table
* lookup on the library version to get a pattern to match against the
* input version.
*/
if (version) {
H_UINT l_interface=0, l_revision=0, l_age=0;
H_UINT p, p_interface, p_revision, p_patch;
#ifdef HAVEGE_LIB_VERSION
sscanf(HAVEGE_LIB_VERSION, "%u:%u:%u", &l_interface, &l_revision, &l_age);
#endif
(void)l_interface;(void)l_revision;(void)l_age;(void)p_patch; /* No check for now */
p = sscanf(version, "%u.%u.%u", &p_interface, &p_revision, &p_patch);
if (p!=3 || p_interface != 1 || p_revision != 9)
return NULL;
}
return HAVEGE_PREP_VERSION;
}
/**
* Place holder if output display not provided
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
static void havege_mute( /* RETURN: none */
const char *format, /* IN: printf format */
...) /* IN: args */
{
;
}
#pragma GCC diagnostic pop
#if NUMBER_CORES > 1
/**
* Cleanup collector(s). In a multi-collector environment, need to kill
* children to avoid zombies.
*/
static int havege_exit( /* RETURN: NZ if child */
H_PTR h_ptr) /* IN: app state */
{
H_THREAD *t = (H_THREAD *)h_ptr->threads;
pid_t p;
H_UINT i;
if (0 == t)
return 0; /* Must be main thread */
t->fatal = H_EXIT;
for(i=0;i<t->exit_ct;i++)
(void)sem_post(&t->flags[i]);
if (getpid() != t->main)
return 1;
do { /* Wait for children */
p = wait(NULL);
} while(p != -1 && errno != ECHILD);
for(i=0;i<t->exit_ct;i++)
(void)sem_destroy(&t->flags[i]);
if (i==h_ptr->n_cores)
(void)sem_destroy(&t->flags[i]);
havege_unipc(h_ptr); /* unmap memory */
return 0;
}
/**
* Initialize IPC mechanism. This consists of setting up a shared memory area
* containing the output buffer and the collection thread directory.
*/
static void havege_ipc( /* RETURN: None */
H_PTR h, /* IN: app state */
H_UINT n, /* IN: number of threads */
H_UINT sz) /* IN: size of buffer */
{
void *m;
H_THREAD *t;
H_UINT m_sz;
int i;
if (n > NUMBER_CORES) {
h->error = H_NOCORES;
return;
}
m = mmap(NULL,
m_sz = sz + sizeof(H_THREAD) + n * sizeof(sem_t),
PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS,
0,
0);
if (m != MAP_FAILED) {
h->io_buf = m;
h->m_sz = m_sz;
t = (H_THREAD *)((char *) m + sz);
memset(t, 0, sizeof(H_THREAD));
t->main = getpid();
h->threads = t;
for(i=0;i<=n;i++)
if(sem_init(&t->flags[i],1,0) < 0) {
h->error = H_NOINIT;
break;
}
t->exit_ct = i;
}
}
/**
* Child harvester task. If task fails to start H_PTR::error will be set to reason.
* If task fails after start, H_THREAD::fatal will be set to the reason and a completion
* will be posted to prevent the main thread from hanging waiting for a response.
*/
static int havege_rngChild(/* RETURN: none */
H_PTR h_ptr, /* IN: app state */
H_UINT cNumber) /* IN: collector index */
{
H_COLLECT *h_ctxt = 0;
H_THREAD *thds = (H_THREAD *) h_ptr->threads;
H_UINT cNext, i, r;
int pid;
switch(pid=fork()) {
case 0:
h_ctxt = havege_ndcreate(h_ptr, cNumber);
if (NULL != h_ctxt) {
cNext = (cNumber + 1) % h_ptr->n_cores;
while(1) {
if (0!=sem_wait(&thds->flags[cNumber])) {
thds->fatal = H_NOWAIT;
break;
}
if (H_NOERR != thds->fatal) {
havege_nddestroy(h_ctxt);
exit(0);
}
thds->last = cNumber;
r = h_ctxt->havege_szFill - h_ctxt->havege_nptr;
if (thds->count < r)
r = thds->count;
for(i=0;i<r;i++)
thds->out[i] = havege_ndread(h_ctxt);
thds->fatal = h_ctxt->havege_err;
if (0==(thds->count -= i)) {
if (0!=sem_post(&thds->flags[h_ptr->n_cores])) {
thds->fatal = H_NODONE;
break;
}
continue;
}
thds->out += i;
if (0!=sem_post(&thds->flags[cNext])) {
thds->fatal = H_NOPOST;
break;
}
#ifdef HAVE_SCHED_YIELD
(void)sched_yield();
#endif
(void)havege_ndread(h_ctxt);
h_ctxt->havege_nptr = 0;
}
havege_nddestroy(h_ctxt);
}
else thds->fatal = h_ptr->error; /* h_ptr is a copy!! */
(void)sem_post(&thds->flags[h_ptr->n_cores]); /* announce death! */
break;
case -1:
h_ptr->error = H_NOTASK;
}
return pid;
}
/**
* Unmap memory
*/
static void havege_unipc( /* RETURN: none */
H_PTR h_ptr) /* IN: app state */
{
if (0 != h_ptr->m_sz) {
munmap(h_ptr->io_buf, h_ptr->m_sz);
h_ptr->io_buf = 0;
}
}
#endif
#ifdef ONLINE_TESTS_ENABLE
/**
* Interpret options string as settings. The option string consists of terms
* like "[t|c][a[1-8][w]|b[w]]".
*/
static int testsConfigure( /* RETURN: non-zero on error */
H_UINT *tot, /* OUT: tot test options */
H_UINT *run, /* OUT: run test options */
char *options) /* IN: option string */
{
H_UINT section=0;
int c;
if (options==0)
options = DEFAULT_TEST_OPTIONS;
while(0 != (c = *options++)) {
switch(c) {
case 'T': case 't': /* tot test */
section = 't';
*tot = 0;
break;
case 'C': case 'c': /* production test */
section = 'c';
*run = 0;
break;
case 'A': case 'a':
if (!section) return 1;
c = atoi(options);
if (c >= 1 && c < 9) {
c = 1<<c;
options +=1;
}
else c = 0;
c |= A_RUN;
if (*options=='W' || *options=='w') {
c |= A_WARN;
options++;
}
if (section=='t')
*tot |= c;
else *run |= c;
break;
case 'B': case 'b':
if (!section) return 1;
c = B_RUN;
if (*options=='W' || *options=='w') {
c |= B_WARN;
options++;
}
if (section=='t')
*tot |= c;
else *run |= c;
break;
default:
return 1;
}
}
return 0;
}
/**
* Show test setup. Output strings are [A[N]][B]..
*/
static void testsStatus( /* RETURN: test config */
procShared *tps, /* IN: shared data */
char *tot, /* OUT: tot tests */
char *prod) /* OUT: production tests */
{
procInst *p;
char *dst = tot;
H_UINT i, j, k, m;
*dst = *tot = 0;
p = tps->totTests;
for(i=0;i<2;i++,p = tps->runTests, dst = prod) {
for(j=0;j<2;j++,p++) {
switch(p->action) {
case A_RUN:
*dst++ = 'A';
if (0!=(m = p->options & A_CYCLE)) {
for(k=0;m>>=1 != 0;k++);
*dst++ = '0' + k;
}
if (0 != (p->options & A_WARN))
*dst++ = 'w';
break;
case B_RUN:
*dst++ = 'B';
if (0 != (p->options & B_WARN))
*dst++ = 'w';
break;
}
*dst = 0;
}
}
}
/**
* Reporting unit for tests
*/
static void testReport(
H_COLLECT * h_ctxt, /* IN-OUT: collector context */
H_UINT action, /* IN: A_RUN or B_RUN */
H_UINT prod, /* IN: 0==tot, else continuous */
H_UINT state, /* IN: state variable */
H_UINT ct) /* IN: bytes consumed */
{
H_PTR h_ptr = (H_PTR)(h_ctxt->havege_app);
onlineTests *context = (onlineTests *) h_ctxt->havege_tests;
char *result;
switch(state) {
case TEST_DONE: result = "success"; break;
case TEST_RETRY: result = "retry"; break;
case TEST_IGNORE: result = "warning"; break;
default: result = "failure";
}
h_ptr->print_msg("AIS-31 %s procedure %s: %s %d bytes fill %d\n",
prod==0? "tot" : "continuous", action==A_RUN? "A":"B", result, ct, h_ptr->n_fills);
if (0 != (h_ptr->havege_opts & (H_DEBUG_OLTR|H_DEBUG_OLT)))
switch(action){
case A_RUN:
testReportA(h_ptr, context->pA);
break;
case B_RUN:
testReportB(h_ptr, context->pB);
break;
}
}
/**
* Reporting unit for procedure A. Results are 0-257*(1-[4 or 5])
*/
static void testReportA( /* RETURN: nothing */
H_PTR h_ptr, /* IN: application instance */
procA *p) /* IN: proc instance */
{
static const char * pa_tests[6] = {"test0","test1","test2","test3","test4","test5"};
H_UINT ran[6],sum[6];
H_UINT ct, i, j, k;
for (i=0;i<6;i++)
ran[i] = sum[i] = 0;
for(i=0;i<p->testRun;i++){
ct = p->results[i].testResult;
j = ct>>8;
ran[j] += 1;
if (0==(ct & 0xff))
sum[j] += 1;
}
h_ptr->print_msg("procedure A: %s:%d/%d, %s:%d/%d, %s:%d/%d, %s:%d/%d, %s:%d/%d, %s:%d/%d\n",
pa_tests[0], sum[0], ran[0],
pa_tests[1], sum[1], ran[1],
pa_tests[2], sum[2], ran[2],
pa_tests[3], sum[3], ran[3],
pa_tests[4], sum[4], ran[4],
pa_tests[5], sum[5], ran[5]
);
for(i=k=0;i<p->testRun;i++){
ct = p->results[i].testResult;
j = ct>>8;
if (j==1)
k+=1;
if (0!=(ct & 0xff))
h_ptr->print_msg(" %s[%d] failed with %d\n", pa_tests[j%6],k,p->results[i].finalValue);
}
}
/**
* Reporting unit for procedure B. Results are 6a-6b-7a[0]-7a[1]-7b[0]-7b[1]-7b[2]-7b[3]-8
*/
static void testReportB( /* RETURN: nothing */
H_PTR h_ptr, /* IN: application instance */
procB *p) /* IN: proc instance */
{
static const char * pb_tests[5] = {"test6a","test6b","test7a","test7b","test8"};
H_UINT ct, i, j, ran[5],sum[5];
for (i=0;i<5;i++) {
ran[i] = sum[i] = 0;
}
for(i=0;i<p->testNbr;i++){
ct = p->results[i].testResult;
j = ct>>8;
ran[j] += 1;
if (0==(ct & 0xff))
sum[j] += 1;
}
h_ptr->print_msg("procedure B: %s:%d/%d, %s:%d/%d, %s:%d/%d, %s:%d/%d, %s:%d/%d\n",
pb_tests[0], sum[0], ran[0],
pb_tests[1], sum[1], ran[1],
pb_tests[2], sum[2], ran[2],
pb_tests[3], sum[3], ran[3],
pb_tests[4], sum[4], ran[4]
);
for(i=0;i<5;i++)
ran[i] = p->testNbr;
for(i=0;i<p->testNbr;i++){
ct = p->results[i].testResult;
j = ct>>8;
if (i < ran[j]) ran[j] = i;
if (0!=(ct & 0xff))
h_ptr->print_msg(" %s[%d] failed with %g\n", pb_tests[j],i-ran[j],p->results[i].finalValue);
}
}
#endif

308
src/havege.h Normal file
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@ -0,0 +1,308 @@
/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2014 Gary Wuertz gary@issiweb.com
** Copyright 2011-2012 BenEleventh Consulting manolson@beneleventh.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HAVEGE_H
#define HAVEGE_H
#include <stddef.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* header/package version as a numeric major, minor, patch triple. See havege_version()
* below for usage.
*/
#define HAVEGE_PREP_VERSION "1.9.14"
/**
* Basic types
*/
#define H_UINT uint32_t
#define H_UINT8 uint8_t
/**
* Optional metering call-back. Called with event=0 at start of collection buffer fill.
* Called with event=1 at end of collection buffer fill. The nCollect parameter indicates
* the calling process if multiple collection processes are enabled. Use a value of 0
* to disable metering.
*/
typedef void (*pMeter)(H_UINT nCollect, H_UINT event);
/**
* Optional message display call-back. This printf style method is used for all diagnostic
* output including havege_status(). Use a value of 0 to disable output.
*/
typedef void (*pMsg)(const char *format, ...);
/**
* Injection call-back for RAW diagnostics. Use a value of 0 to disable diagnostic. Ignored
* except for diaqnotic builds.
*/
typedef int (*pRawIn)(volatile H_UINT *pData, H_UINT szData);
/**
* options for H_PARAMS below. Lower byte transferred from verbose settings
* upper byte set by diagnositic run options
*/
#define H_VERBOSE 0x001 /* deprecated from ver 1.7 */
#define H_DEBUG_INFO 0x001 /* Show config info, retries */
#define H_DEBUG_OLTR 0x002 /* Show detailed test retry info */
#define H_DEBUG_TIME 0x004 /* Show collection times */
#define H_DEBUG_LOOP 0x008 /* Show loop parameters */
#define H_DEBUG_COMPILE 0x010 /* Show assembly info */
#define H_DEBUG_OLT 0x020 /* Show all test info */
#define H_DEBUG_RAW_OUT 0x100 /* diagnostic output */
#define H_DEBUG_RAW_IN 0x200 /* diagnostic input */
#define H_DEBUG_TEST_IN 0x400 /* input test data */
/**
* Initialization parameters. Use non-zero values to override default values.
* Notes:
*
* 1) Correspondence between provided value and value of H_PTR members are:
* ioSz <==> i_readSz, collectSize <==> i_collectSz, nCores <==> n_cores,
* options <==> havege_opts
* 2) ioSz is specified in bytes. collectSize sizes is specified as number
* of H_UINT. The default for ioSz is 1024*sizeof(H_UINT). The default
* for collecSize is 128K * sizeof(H_UINT).
* 3) The icacheSize and dcacheSize override cache sizes. Both are specified in KB.
* Either may be specified to override the tuning value. If both are provided,
* tuning code is bypassed. The fallback tuning values can be overridden
* by defining GENERIC_DCACHE and GENERIC_ICACHE (16 will be used if not
* otherwise defined)
* 4) null callback values suppress the function.
* 5) sysFs default is '/sys', procFs default is '/proc'.
* 6) testSpec same as haveged option "[t<x>][c<x>] x=[a[n][w]][b[w]]". If
* not specified (NULL) the default is "ta8b" - i.e. run the tot tests
*/
typedef struct {
H_UINT ioSz; /* size of write buffer */
H_UINT collectSize; /* size of collection buffer */
H_UINT icacheSize; /* Instruction cache size */
H_UINT dcacheSize; /* Data cache size */
H_UINT options; /* Other options */
H_UINT nCores; /* If multi-core */
pMeter metering; /* meterming method */
pMsg msg_out; /* output display method */
pRawIn injection; /* injection method */
char *procFs; /* proc mount point override */
char *sysFs; /* sys mount point override */
char *testSpec; /* test specification */
} H_PARAMS;
/**
* Status codes used in the error member of h_anchor
*/
typedef enum {
H_NOERR, /* 00 No error */
H_NOHANDLE, /* 01 No memory for handle */
H_NOBUF, /* 02 Output buffer allocation failed */
H_NOINIT, /* 03 semaphore init failed */
H_NOCOLLECT, /* 04 H_COLLECT allocation failed */
H_NOWALK, /* 05 Walk buffer allocation failed */
H_NOTESTSPEC, /* 06 invalid test specification */
H_NOTESTINIT, /* 07 test setup failed */
H_NOTESTMEM, /* 08 Unable to allocate test memory */
H_NOTESTTOT, /* 09 tot test failed */
H_NOTESTRUN, /* 10 production test failed */
H_NOCORES, /* 11 too many cores specified */
H_NOTASK, /* 12 Unable to create child task */
H_NOWAIT, /* 13 sem_wait failed */
H_NOPOST, /* 14 sem_post failed */
H_NODONE, /* 15 sem_post done failed */
H_NORQST, /* 16 sem_post request failed */
H_NOCOMP, /* 17 wait for completion failed */
H_EXIT, /* 18 Exit signal */
H_NOTIMER /* 19 timer failed */
} H_ERR;
/**
* Keep compiler honest
*/
typedef volatile void *H_VOL;
/**
* Anchor for the RNG. Should be read only at devel level and above.
*/
typedef struct h_anchor {
H_UINT *io_buf; /* output buffer */
char *arch; /* "x86","sparc","ppc","ia64",etc */
void *cpu; /* information on the cpu */
void *instCache; /* instruction cache info */
void *dataCache; /* data cache info */
pMsg print_msg; /* output display method */
pMeter metering; /* metering method */
pRawIn inject; /* Injection diagnostic only */
H_VOL collector; /* single thread collector */
H_VOL threads; /* multi thread collectors */
void *testData; /* online test data */
void *tuneData; /* tuning data */
H_UINT error; /* H_ERR enum for status */
H_UINT havege_opts; /* option flags */
H_UINT i_maxidx; /* maximum instruction loop index */
H_UINT i_maxsz; /* maximum code size */
H_UINT i_idx; /* code index used */
H_UINT i_sz; /* code size used */
H_UINT i_collectSz; /* size of collection buffer */
H_UINT i_readSz; /* size of read buffer (bytes) */
H_UINT m_sz; /* size of thread ipc area (bytes) */
H_UINT n_cores; /* number of cores */
H_UINT n_fills; /* number of buffer fills */
} *H_PTR;
/**
* Fail/Success counters for tot and production tests.
*/
typedef enum {
H_OLT_TOT_A_F, /* tot Procedure A failed */
H_OLT_TOT_A_P, /* tot Procedure A passed */
H_OLT_TOT_B_F, /* tot Procedure B failed */
H_OLT_TOT_B_P, /* tot Procedure B passed */
H_OLT_PROD_A_F, /* prod Procedure A failed */
H_OLT_PROD_A_P, /* prod Procedure A passed */
H_OLT_PROD_B_F, /* prod Procedure B failed */
H_OLT_PROD_B_P /* prod Procedure B passed */
} H_OLT_METERS;
/**
* Structure used to query RNG anchor settings for information not exposed by
* H_PTR. List formats are strings with one or more tokens separated by space.
* Sources lists show how tuning parameters are derived. D is a build default,
* P is a run time override, items V* come from linux virtual file system,
* other items trace various cpuid sources. Tuning is skipped if both cache
* sizes have 'P' sources.
*
* Notes:
*
* 1) Build: package version of source
* 2) Build options: compiler version followed by build configuration encoded
* as string of: [C][I][M][T][V] where C=clock_gettime, I=tune with cpuid,
* M=multi-core, T=online-test, V=tune with vfs
* 3) Tuning source lists: D=default, P=parameter, C=cpuid present,
* H=hyperthreading, A=AMD cpuid, A5=AMD fn5, A6=AMD fn6, A8=AMD fn8
* L2=Intel has leaf2, L4=Intel has leaf4, B=Intel leaf b,
* 4=intel leaf4, V=virtual file system available
* VS=/sys/devices/system/cpu/cpu%d/cache/index<n>/level,
* VO=/sys/devices/system/cpu/online, VI=/proc/cpuinfo
* VC=/sys/devices/system/cpu
* 4) test spec [A[1..8]][B], see H_PARAMS above.
* 5) zero unless tests are enabled
* 6) Last Coron's entropy estimate from Procedure B, test 8
*/
typedef struct h_status {
const char *version; /* Package version [1] */
const char *buildOptions; /* Options [2] */
const char *vendor; /* cpuid machines only */
const char *cpuSources; /* Tuning sources list [3] */
const char *i_cacheSources; /* Tuning sources list [3] */
const char *d_cacheSources; /* Tuning sources list [3] */
const char *tot_tests; /* tot test spec [4] */
const char *prod_tests; /* prod test spec [4] */
H_UINT i_cache; /* size of L1 instruction cache KB */
H_UINT d_cache; /* size of L1 data cache KB */
H_UINT n_tests[H_OLT_PROD_B_P+1]; /* test statistics [5] */
double last_test8; /* last test8 result [6] */
} *H_STATUS;
/**
* Standard presentation formats for havege_status_dump.
*/
typedef enum {
H_SD_TOPIC_BUILD,
/* ver: %s; arch: %s; vend: %s; build: (%s); collect: %dK */
H_SD_TOPIC_TUNE,
/* cpu: (%s); data: %dK (%s); inst: %dK (%s); idx: %d/%d; sz: %d/%d */
H_SD_TOPIC_TEST,
/* [tot tests (%s): A:%d/%d B: %d/%d;][continuous tests (%s): A:%d/%d B: %d/%d;][last entropy estimate %g] */
H_SD_TOPIC_SUM,
/* fills: %d, generated: %.4g %c bytes */
} H_SD_TOPIC;
/**
* Public prototypes. Library users note that "havege_*" is reserved for library
* public functions. Note that the multi-core option is experimental and must
* enabled in the build.
*/
/**
* Create an anchor. The caller should check for a non-null return value with
* a error value of H_NOERR. Any non-null return should be disposed of by a
* call to havege_destroy() to free all allocated resources.
*
* Possible error values: H_NOERR, H_NOTESTSPEC, H_NOBUF, H_NOTESTMEM,
* H_NOINIT
*/
H_PTR havege_create(H_PARAMS *params);
/**
* haveger_create() remembers parent pid and uses it to identify deallocating thread.
* daemonize() forks parent and effectively loses parent thread.
* havege_reparent(void) allows recovering new parent pid before havege_run() is started.
*/
void havege_reparent(H_PTR hptr);
/**
* Frees all allocated anchor resources. If the multi-core option is used, this
* method should be called from a signal handler to prevent zombie processes.
* If called by the process that called haveged_create(), hptr will be freed
* when all child processes (if any) have terminated. If called by a child
* process, H_EXIT will be set and all children awakened to exit.
*/
void havege_destroy(H_PTR hptr);
/**
* Read random words from an active anchor. The RNG must have been readied
* by a previous call to havege_run(). The read must take place within the
* allocated buffer, hptr->io_buf, and the range is specified in number of
* H_UINT to read. If the multi-core option is used, this buffer is
* memory-mapped between collectors.
*
* Returns the number of H_UINT read.
*
* Possible error values: H_NOERR, H_NOTESRUN, H_NOPOST, H_NODONE,
* H_NORQST, H_NOCOMP, H_EXIT
*/
int havege_rng(H_PTR hptr, H_UINT *buf, H_UINT sz);
/**
* Warm up the RNG and run the start-up tests. The operation suceeded if the
* error member of the handle is H_NOERR. A failed handle should be disposed
* of by a call to havege_destroy().
*
* Returns non-zero on failure.
*
* Possible error values: H_NOERR, H_NOCOLLECT, H_NOWALK, H_NOTESTMEM,
* H_NOTASK, H_NOTESTTOT, H_NOWAIT,
* any havege_rng error
*/
int havege_run(H_PTR hptr);
/**
* Fill in the h_status structure with read-only information collected from
* the package build, run-time tuning, and test components.
*/
void havege_status(H_PTR hptr, H_STATUS hsts);
/**
* Call havege_status() and generate a standard presentation of H_STATUS content.
* See the H_SD_TOPIC enum above for the formats.
*
* Returns the number of bytes placed in buf.
*/
int havege_status_dump(H_PTR hptr, H_SD_TOPIC topic, char *buf, size_t len);
/**
* Return/check library prep version. Calling havege_version() with a NULL version
* returns the definition of HAVEGE_PREP_VERSION used to build the library. Calling
* with HAVEGE_PREP_VERSION as the version checks if this headers definition is
* compatible with that of the library, returning NULL if the input is incompatible
* with the library.
*/
const char *havege_version(const char *version);
#ifdef __cplusplus
}
#endif
#endif

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/**
** Provide HAVEGE socket communication API
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2018 Werner Fink <werner@suse.de>
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
*/
#include "config.h"
#include <stddef.h>
#include <stdint.h>
#ifndef NO_COMMAND_MODE
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/un.h>
#include <unistd.h>
#ifndef HAVE_STRUCT_UCRED
struct ucred
{
pid_t pid; /* PID of sending process. */
uid_t uid; /* UID of sending process. */
gid_t gid; /* GID of sending process. */
};
#endif
#include "havegecmd.h"
int first_byte;
int socket_fd;
static char errmsg[1024];
static int new_root( /* RETURN: status */
const char *root, /* IN: path of the new root file system */
const volatile char *path, /* IN: path of the haveged executable */
char *const argv[], /* IN: arguments for the haveged process */
struct pparams *params) /* IN: input params */
{
int ret;
struct stat st;
const char *realtive = (const char*)&path[0];
ret = chdir(root);
if (ret < 0) {
snprintf(&errmsg[0], sizeof(errmsg)-1,
"can't change to working directory %s: %s\n",
root, strerror(errno));
goto err;
}
if (path[0] == '/')
realtive++;
ret = fstatat(AT_FDCWD, realtive, &st, 0);
if (ret < 0) {
snprintf(&errmsg[0], sizeof(errmsg)-1,
"can't restart %s: %s\n",
path, strerror(errno));
goto err;
}
ret = chroot(".");
if (ret < 0) {
snprintf(&errmsg[0], sizeof(errmsg)-1,
"can't change root directory %s\n",
strerror(errno));
goto err;
}
ret = chdir("/");
if (ret < 0) {
snprintf(&errmsg[0], sizeof(errmsg)-1,
"can't change to working directory / : %s\n",
strerror(errno));
goto err;
}
ret = execv((const char *)path, argv);
if (ret < 0) {
snprintf(&errmsg[0], sizeof(errmsg)-1,
"can't restart %s: %s\n",
path, strerror(errno));
}
err:
if (ret < 0)
print_msg("%s", errmsg);
return ret;
}
/**
* Open and listen on a UNIX socket to get command from there
*/
int cmd_listen( /* RETURN: UNIX socket file descriptor */
struct pparams *params) /* IN: input params */
{
struct sockaddr_un su = { /* The abstract UNIX socket of haveged */
.sun_family = AF_UNIX,
.sun_path = HAVEGED_SOCKET_PATH,
};
const int one = 1;
int fd, ret;
fd = socket(PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
if (fd < 0) {
print_msg("%s: can not open UNIX socket\n", params->daemon);
goto err;
}
ret = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, (socklen_t)sizeof(one));
if (ret < 0) {
close(fd);
fd = -1;
print_msg("%s: can not set option for UNIX socket\n", params->daemon);
goto err;
}
ret = bind(fd, (struct sockaddr *)&su, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(su.sun_path+1));
if (ret < 0) {
close(fd);
fd = -1;
if (errno != EADDRINUSE)
print_msg("%s: can not bind a name to UNIX socket\n", params->daemon);
else
fd = -2;
goto err;
}
ret = listen(fd, SOMAXCONN);
if (ret < 0) {
close(fd);
fd = -1;
print_msg("%s: can not listen on UNIX socket\n", params->daemon);
goto err;
}
err:
return fd;
}
/**
* Open and connect on a UNIX socket to send command over this
*/
int cmd_connect( /* RETURN: UNIX socket file descriptor */
struct pparams *params) /* IN: input params */
{
struct sockaddr_un su = { /* The abstract UNIX socket of haveged */
.sun_family = AF_UNIX,
.sun_path = HAVEGED_SOCKET_PATH,
};
const int one = 1;
int fd, ret;
fd = socket(PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
if (fd < 0) {
print_msg("%s: can not open UNIX socket\n", params->daemon);
goto err;
}
ret = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, (socklen_t)sizeof(one));
if (ret < 0) {
print_msg("%s: can not set option for UNIX socket\n", params->daemon);
close(fd);
fd = -1;
goto err;
}
ret = connect(fd, (struct sockaddr *)&su, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(su.sun_path+1));
if (ret < 0) {
if (errno != ECONNREFUSED)
print_msg("%s: can not connect on UNIX socket\n", params->daemon);
close(fd);
fd = -1;
goto err;
}
err:
return fd;
}
/**
* Handle arguments in command mode
*/
int getcmd( /* RETURN: success or error */
char *arg) /* handle current known commands */
{
static const struct {
const char* cmd;
const int req;
const int arg;
const char* opt;
} cmds[] = {
{ "root=", MAGIC_CHROOT, 1, NULL }, /* New root */
{ "close", MAGIC_CLOSE, 0, NULL }, /* Close socket */
{0}
}, *cmd = cmds;
int ret = -1;
if (!arg || !*arg)
goto err;
optarg = NULL;
for (; cmd->cmd; cmd++)
if (cmd->arg) {
if (strncmp(cmd->cmd, arg, strlen(cmd->cmd)) == 0) {
optarg = strchr(arg, '=');
optarg++;
ret = cmd->req;
break;
}
}
else {
if (strcmp(cmd->cmd, arg) == 0) {
ret = cmd->req;
break;
}
}
err:
return ret;
}
/**
* Handle incomming messages from socket
*/
int socket_handler( /* RETURN: closed file descriptor */
int fd, /* IN: connected socket file descriptor */
const volatile char *path, /* IN: path of the haveged executable */
char *const argv[], /* IN: arguments for the haveged process */
struct pparams *params) /* IN: input params */
{
struct ucred cred = {0};
unsigned char magic[2], *ptr;
char *enqry;
char *optarg = NULL;
socklen_t clen;
int ret = -1, len;
if (fd < 0) {
print_msg("%s: no connection jet\n", params->daemon);
}
ptr = &magic[0];
len = sizeof(magic);
ret = safein(fd, ptr, len);
if (ret < 0) {
print_msg("%s: can not read from UNIX socket\n", params->daemon);
goto out;
}
if (magic[1] == '\002') { /* ASCII start of text: read argument provided */
uint32_t alen;
ret = receive_uinteger(fd, &alen);
if (ret < 0) {
print_msg("%s: can not read from UNIX socket\n", params->daemon);
goto out;
}
optarg = calloc(alen, sizeof(char));
if (!optarg) {
print_msg("can not allocate memory for message from UNIX socket");
goto out;
}
ptr = (unsigned char*)optarg;
ret = safein(fd, ptr, alen);
if (ret < 0) {
print_msg("%s: can not read from UNIX socket\n", params->daemon);
goto out;
}
}
clen = sizeof(struct ucred);
ret = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &clen);
if (ret < 0) {
print_msg("%s: can not get credentials from UNIX socket part1\n", params->daemon);
goto out;
}
if (clen != sizeof(struct ucred)) {
print_msg("%s: can not get credentials from UNIX socket part2\n", params->daemon);
goto out;
}
if (cred.uid != 0) {
enqry = ASCII_NAK;
ptr = (unsigned char *)enqry;
len = (int)strlen(enqry)+1;
safeout(fd, ptr, len);
}
switch (magic[0]) {
case MAGIC_CHROOT:
enqry = ASCII_ACK;
ret = new_root(optarg, path, argv, params);
if (ret < 0) {
uint32_t size = strlen(errmsg);
safeout(fd, ASCII_STX, strlen(ASCII_STX));
send_uinteger(fd, size);
safeout(fd, errmsg, size+1);
break;
}
ptr = (unsigned char *)enqry;
len = (int)strlen(enqry);
safeout(fd, ptr, len);
break;
case MAGIC_CLOSE:
enqry = ASCII_ACK;
close(socket_fd);
socket_fd = -1;
ptr = (unsigned char *)enqry;
len = (int)strlen(enqry);
safeout(fd, ptr, len);
argv[0][0] = first_byte;
break;
default:
enqry = ASCII_NAK;
ptr = (unsigned char *)enqry;
len = (int)strlen(enqry);
safeout(fd, ptr, len);
break;
}
out:
if (optarg)
free(optarg);
if (fd > 0) {
close(fd);
fd = -1;
}
return fd;
}
/**
* Receive incomming messages from socket
*/
ssize_t safein( /* RETURN: read bytes */
int fd, /* IN: file descriptor */
void *ptr, /* OUT: pointer to buffer */
size_t len) /* IN: size of buffer */
{
int saveerr = errno, avail;
ssize_t ret = 0;
if (len > SSIZE_MAX)
len = SSIZE_MAX;
ret = ioctl(fd, FIONREAD, &avail);
if (ret < 0 || avail <=0)
goto out;
if (len > (unsigned int) avail)
len = avail;
do {
errno = saveerr;
ssize_t p = recv(fd, ptr, len, 0 /* MSG_DONTWAIT */);
if (p < 0) {
if (errno == EINTR)
continue;
if (errno == EAGAIN || errno == EWOULDBLOCK)
break;
print_msg("Unable to read from socket %d: %s", socket_fd, strerror(errno));
}
ptr = (char *) ptr + p;
ret += p;
len -= p;
}
while (len > 0);
out:
return ret;
}
/**
* Send outgoing messages to socket
*/
void safeout( /* RETURN: nothing */
int fd, /* IN: file descriptor */
const void *ptr, /* IN: pointer to buffer */
size_t len) /* IN: size of buffer */
{
int saveerr = errno;
do {
ssize_t p = send(fd, ptr, len, MSG_NOSIGNAL);
if (p < 0) {
if (errno == EINTR)
continue;
if (errno == EPIPE || errno == EAGAIN || errno == EWOULDBLOCK)
break;
print_msg("Unable to write to socket %d: %s", fd, strerror(errno));
}
ptr = (char *) ptr + p;
len -= p;
}
while (len > 0);
errno = saveerr;
}
/**
* Send outgoing unsigned integer to socket
*/
void send_uinteger( /* RETURN: nothing */
int fd, /* IN: file descriptor */
uint32_t value) /* IN: 32 bit unsigned integer */
{
uint8_t buffer[4];
buffer[0] = (uint8_t)((value >> 24) & 0xFF);
buffer[1] = (uint8_t)((value >> 16) & 0xFF);
buffer[2] = (uint8_t)((value >> 8) & 0xFF);
buffer[3] = (uint8_t)((value >> 0) & 0xFF);
safeout(fd, buffer, 4 * sizeof(uint8_t));
}
/**
* Receive incomming unsigned integer from socket
*/
int receive_uinteger( /* RETURN: status */
int fd, /* IN: file descriptor */
uint32_t *value) /* OUT: 32 bit unsigned integer */
{
uint8_t buffer[4];
if (safein(fd, buffer, 4 * sizeof(uint8_t)) < 0)
return -1;
*value = (((uint32_t)buffer[0]) << 24) |
(((uint32_t)buffer[1]) << 16) |
(((uint32_t)buffer[2]) << 8) |
(((uint32_t)buffer[3]) << 0);
return 0;
}
#endif

103
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/**
** Provide HAVEGE socket communication API
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2018 Werner Fink <werner@suse.de>
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
*/
#ifndef HAVEGECMD_H
#define HAVEGECMD_H
#ifdef __cplusplus
extern "C" {
#endif
#include "havege.h"
#include "haveged.h"
#include <sys/types.h>
#include <sys/socket.h>
#define HAVEGED_SOCKET_PATH "\0/sys/entropy/haveged"
#define MAGIC_CHROOT 'R'
#define MAGIC_CLOSE 'X'
#define MAGIC_PATH 'P'
#define ASCII_ACK "\x6" /* ASCII acknowledge */
#define ASCII_NAK "\x15" /* ASCII negative acknowledge */
#define ASCII_STX "\x2" /* ASCII start of text */
#ifndef SOCK_CLOEXEC
#define SOCK_CLOEXEC 0
#endif
#ifndef SOCK_NONBLOCK
#define SOCK_NONBLOCK 0
#endif
/**
* Open and listen on a UNIX socket to get command from there
*/
int cmd_listen(struct pparams *);
/**
* Open and connect on a UNIX socket to send command over this
*/
int cmd_connect(struct pparams *);
/**
* Handle arguments in command mode
*/
int getcmd(char *);
/**
* Handle incomming messages from socket
*/
int socket_handler(int, const volatile char *, char *const [], struct pparams *);
/**
* Receive incomming messages from socket
*/
ssize_t safein(int, void *, size_t);
/**
* Send outgoing messages to socket
*/
void safeout(int, const void *, size_t);
/**
* Send outgoing unsigned integer to socket
*/
void send_uinteger(int, uint32_t);
/**
* Receive incomming unsigned integer from socket
*/
int receive_uinteger(int, uint32_t *);
/**
* Socket file descriptor used for communication
*/
extern int socket_fd;
extern int first_byte;
#ifdef __cplusplus
}
#endif
#endif

480
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@ -0,0 +1,480 @@
/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2014 Gary Wuertz gary@issiweb.com
** Copyright 2011-2012 BenEleventh Consulting manolson@beneleventh.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* This compile unit isolates the operation of the HAVEGE algorithm to better
* deal with compiler issues. Extensive macro expansion used to deal with
* hardware variations.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "havegecollect.h"
#include "havegetest.h"
#include "havegetune.h"
/**
* Injection and capture diagnostics
*/
#if defined(RAW_IN_ENABLE) || defined(RAW_OUT_ENABLE)
#define DIAGNOSTICS_ENABLE
#endif
/**
* Option to use clockgettime() as timer source
*/
#if defined(ENABLE_CLOCK_GETTIME)
#include <time.h>
#undef HARDCLOCK
#define HARDCLOCK(x) x = havege_clock()
/**
* Provide a generic timer fallback
*/
static H_UINT havege_clock(void)
{
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (H_UINT)(ts.tv_nsec + ts.tv_sec * 1000000000LL);
}
#endif
/**
* Memory allocation sizing
*/
#define SZH_INIT sizeof(H_COLLECT)+sizeof(char *)*(LOOP_CT + 2)
#define SZH_COLLECT(a) sizeof(H_COLLECT)+sizeof(H_UINT)*(a+16384-1)
/**
* The HAVEGE collector is created by interleaving instructions generated by
* oneiteration.h with the LOOP() output to control the sequence. At each
* LOOP() point, the following actions are possible.
*/
typedef enum {
LOOP_NEXT, /* Next loop */
LOOP_ENTER, /* First loop */
LOOP_EXIT /* Last loop */
} LOOP_BRANCH;
/**
* The LOOP macro labels calculation sequences generated by oneiteration.h in
* decreasing order from LOOPCT down to 0. During a normal collection, the
* loop construct only introduces an extra conditional branch into the instruction
* stream. For the exceptional conditions (initialization, end-of-loop, and
* raw HARDCLOCK capture), the return from havege_cp() is used to determine
* the action to be taken.
*/
#define LOOP(n,m) loop##n: if (n < h_ctxt->havege_cdidx) { \
switch(havege_cp(h_ctxt,i,n,LOOP_PT(n))) { \
case LOOP_NEXT: goto loop##m; \
case LOOP_ENTER: goto loop_enter; \
case LOOP_EXIT: goto loop_exit; \
} \
}
/**
* These macros below bind the code contained in oneiteration.h to the H_COLLECT
* instance defined above
*/
#define ANDPT (h_ctxt->havege_andpt)
#define PTTEST (h_ctxt->havege_PTtest)
#define PT (h_ctxt->havege_PT)
#define PT1 (h_ctxt->havege_pt2)
#define PT2 (h_ctxt->havege_PT2)
#define PWALK (h_ctxt->havege_pwalk)
#define RESULT (h_ctxt->havege_bigarray)
/**
* Previous diagnostic support has been replaced. The new implementation provides
* simultaneous access to both the noise source (i.e. the timer tics) and the
* output. The tics buffer is also used by the injection diagnostic if enabled
*/
#ifdef DIAGNOSTICS_ENABLE
#define HTICK1 (h_ctxt->havege_tics[i>>3])
#define HTICK2 (h_ctxt->havege_tics[i>>3])
#define SZ_TICK ((h_ptr->i_collectSz)>>3)
#else
#define HTICK1 (h_ctxt->havege_tic)
#define HTICK2 (h_ctxt->havege_tic)
#define SZ_TICK 0
#endif
/**
* If the injection diagnostic is enabled, use a wrapper for the timer source
*/
#ifdef RAW_IN_ENABLE
static H_UINT havege_inject(H_COLLECT *h_ctxt, H_UINT x);
#define HARDCLOCKR(x) x=havege_inject(h_ctxt, x)
#else
#define HARDCLOCKR(x) HARDCLOCK(x)
#endif
/**
* inline optimization - left conditional for legacy systems
*/
#if 0
#define ROR32(value,shift) ((value >> (shift)) | (value << (32-shift)))
#else
inline static H_UINT ror32(const H_UINT value, const H_UINT shift) {
return (value >> shift) | (value << (32 - shift));
}
#define ROR32(value,shift) ror32(value, shift)
#endif
/**
* Local prototypes
*/
static LOOP_BRANCH havege_cp(H_COLLECT *h_ctxt, H_UINT i, H_UINT n, char *p);
/**
* Protect the collection mechanism against ever-increasing gcc optimization
*/
#if defined (GCC_VERSION) && GCC_VERSION >= 40400
static int havege_gather(H_COLLECT * h_ctxt) __attribute__((optimize(1)));
#else
static int havege_gather(H_COLLECT * h_ctxt);
#endif
static void havege_ndinit(H_PTR h_ptr, struct h_collect *h_ctxt);
/**
* Create a collector
*/
H_COLLECT *havege_ndcreate(/* RETURN: NULL on failure */
H_PTR h_ptr, /* IN-OUT: application instance */
H_UINT nCollector) /* IN: The collector instance */
{
H_UINT i,offs,*p,d_cache;
H_UINT szBuffer;
H_COLLECT *h_ctxt;
szBuffer = h_ptr->i_collectSz;
d_cache = ((CACHE_INST *)(h_ptr->dataCache))->size;
h_ctxt = (H_COLLECT *) calloc(SZH_COLLECT(szBuffer + SZ_TICK),1);
if (NULL != h_ctxt) {
h_ctxt->havege_app = h_ptr;
h_ctxt->havege_idx = nCollector;
h_ctxt->havege_raw = h_ptr->havege_opts & 0xff00;
h_ctxt->havege_rawInput = h_ptr->inject;
h_ctxt->havege_szCollect = szBuffer;
h_ctxt->havege_szFill = szBuffer>>3;
h_ctxt->havege_cdidx = h_ptr->i_idx;
p = (H_UINT *) RESULT;
h_ctxt->havege_err = H_NOERR;
h_ctxt->havege_tests = 0;
h_ctxt->havege_extra = 0;
h_ctxt->havege_tics = p+szBuffer;
/** An intermediate walk table twice the size of the L1 cache is allocated
** for use in permuting time stamp readings. The is meant to exercise
** processor TLBs.
*/
ANDPT = ((2*d_cache*1024)/sizeof(H_UINT))-1;
p = (H_UINT *) calloc((ANDPT + 4097)*sizeof(H_UINT),1);
if (NULL != p) {
h_ctxt->havege_extra = p;
offs = (H_UINT)((((unsigned long)&p[4096])&0xfff)/sizeof(H_UINT));
PWALK = &p[4096-offs];
/**
* Warm up the generator, running the startup tests
*/
#if defined(RAW_IN_ENABLE)
if (0 == (h_ctxt->havege_raw & H_DEBUG_TEST_IN))
#endif
{
H_UINT t0=0;
(void)havege_gather(h_ctxt); /* first sample */
t0 = HTICK1;
for(i=1;i<MININITRAND;i++)
(void)havege_gather(h_ctxt); /* warmup rng */
if (HTICK1==t0) { /* timer stuck? */
h_ptr->error = H_NOTIMER;
havege_nddestroy(h_ctxt);
return NULL;
}
}
#ifdef ONLINE_TESTS_ENABLE
{
procShared *ps = (procShared *)(h_ptr->testData);
while(0!=ps->run(h_ctxt, 0)) { /* run tot tests */
(void)havege_gather(h_ctxt);
}
}
if (H_NOERR != (h_ptr->error = h_ctxt->havege_err)) {
havege_nddestroy(h_ctxt);
return NULL;
}
#endif
h_ctxt->havege_nptr = szBuffer;
if (0 == (h_ctxt->havege_raw & H_DEBUG_RAW_OUT))
h_ctxt->havege_szFill = szBuffer;
}
else {
havege_nddestroy(h_ctxt);
h_ptr->error = H_NOWALK;
return NULL;
}
}
else h_ptr->error = H_NOCOLLECT;
return h_ctxt;
}
/**
* Destruct a collector
*/
void havege_nddestroy( /* RETURN: none */
H_COLLECT *h_ctxt) /* IN: collector context */
{
if (0 != h_ctxt) {
if (h_ctxt->havege_extra!=0) {
free(h_ctxt->havege_extra);
h_ctxt->havege_extra = 0;
}
if (h_ctxt->havege_tests!=0) {
free(h_ctxt->havege_tests);
h_ctxt->havege_tests = 0;
}
free((void *)h_ctxt);
}
}
/**
* Read from the collector.
*/
H_UINT havege_ndread( /* RETURN: data value */
H_COLLECT *h_ctxt) /* IN: collector context */
{
if (h_ctxt->havege_nptr >= h_ctxt->havege_szFill) {
H_PTR h_ptr = (H_PTR)(h_ctxt->havege_app);
pMeter pm;
if (0 != (pm = h_ptr->metering))
(*pm)(h_ctxt->havege_idx, 0);
#ifdef ONLINE_TESTS_ENABLE
{
procShared *ps = (procShared *)(h_ptr->testData);
do {
(void) havege_gather(h_ctxt);
(void) ps->run(h_ctxt, 1);
} while(ps->discard(h_ctxt)>0);
}
#else
(void) havege_gather(h_ctxt);
#endif
h_ptr->n_fills += 1;
if (0 != pm)
(*pm)(h_ctxt->havege_idx, 1);
h_ctxt->havege_nptr = 0;
}
#ifdef RAW_OUT_ENABLE
if (0!=(h_ctxt->havege_raw & H_DEBUG_RAW_OUT))
return h_ctxt->havege_tics[h_ctxt->havege_nptr++];
#endif
return RESULT[h_ctxt->havege_nptr++];
}
/**
* Setup haveged
*/
void havege_ndsetup( /* RETURN: None */
H_PTR h_ptr) /* IN-OUT: application instance */
{
char wkspc[SZH_INIT];
memset(wkspc, 0, SZH_INIT);
havege_ndinit(h_ptr, (struct h_collect *) wkspc);
}
/**
* This method is called only for control points NOT part of a normal collection:
*
* a) For a collection loop after all iterations are performed, this function
* determines if the collection buffer is full.
* b) For initialization, this method saves the address of the collection point
* for analysis at the end of the loop.
*/
static LOOP_BRANCH havege_cp( /* RETURN: branch to take */
H_COLLECT *h_ctxt, /* IN: collection context */
H_UINT i, /* IN: collection offset */
H_UINT n, /* IN: iteration index */
char *p) /* IN: code pointer */
{
if (h_ctxt->havege_cdidx <= LOOP_CT)
return i < h_ctxt->havege_szCollect? LOOP_ENTER : LOOP_EXIT;
((char **)RESULT)[n] = CODE_PT(p);
if (n==0) h_ctxt->havege_cdidx = 0;
return LOOP_NEXT;
}
/**
* The collection loop is constructed by repetitions of oneinteration.h interleaved
* with control points generated by the LOOP macro.
*/
static int havege_gather( /* RETURN: 1 if initialized */
H_COLLECT * h_ctxt) /* IN: collector context */
{
H_UINT i=0,pt=0,inter=0;
H_UINT *Pt0, *Pt1, *Pt2, *Pt3, *Ptinter;
#if defined(RAW_IN_ENABLE)
if (0 != (h_ctxt->havege_raw & H_DEBUG_RAW_IN)) {
(*h_ctxt->havege_rawInput)(h_ctxt->havege_tics, h_ctxt->havege_szCollect>>3);
h_ctxt->havege_tic = h_ctxt->havege_tics[0];
}
else if (0 != (h_ctxt->havege_raw & H_DEBUG_TEST_IN)) {
(*h_ctxt->havege_rawInput)(RESULT, h_ctxt->havege_szCollect);
return 1;
}
#endif
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
loop_enter:
LOOP(40,39)
#include "oneiteration.h"
LOOP(39,38)
#include "oneiteration.h"
LOOP(38,37)
#include "oneiteration.h"
LOOP(37,36)
#include "oneiteration.h"
LOOP(36,35)
#include "oneiteration.h"
LOOP(35,34)
#include "oneiteration.h"
LOOP(34,33)
#include "oneiteration.h"
LOOP(33,32)
#include "oneiteration.h"
LOOP(32,31)
#include "oneiteration.h"
LOOP(31,30)
#include "oneiteration.h"
LOOP(30,29)
#include "oneiteration.h"
LOOP(29,28)
#include "oneiteration.h"
LOOP(28,27)
#include "oneiteration.h"
LOOP(27,26)
#include "oneiteration.h"
LOOP(26,25)
#include "oneiteration.h"
LOOP(25,24)
#include "oneiteration.h"
LOOP(24,23)
#include "oneiteration.h"
LOOP(23,22)
#include "oneiteration.h"
LOOP(22,21)
#include "oneiteration.h"
LOOP(21,20)
#include "oneiteration.h"
LOOP(20,19)
#include "oneiteration.h"
LOOP(19,18)
#include "oneiteration.h"
LOOP(18,17)
#include "oneiteration.h"
LOOP(17,16)
#include "oneiteration.h"
LOOP(16,15)
#include "oneiteration.h"
LOOP(15,14)
#include "oneiteration.h"
LOOP(14,13)
#include "oneiteration.h"
LOOP(13,12)
#include "oneiteration.h"
LOOP(12,11)
#include "oneiteration.h"
LOOP(11,10)
#include "oneiteration.h"
LOOP(10,9)
#include "oneiteration.h"
LOOP(9,8)
#include "oneiteration.h"
LOOP(8,7)
#include "oneiteration.h"
LOOP(7,6)
#include "oneiteration.h"
LOOP(6,5)
#include "oneiteration.h"
LOOP(5,4)
#include "oneiteration.h"
LOOP(4,3)
#include "oneiteration.h"
LOOP(3,2)
#include "oneiteration.h"
LOOP(2,1)
#include "oneiteration.h"
LOOP(1,0)
#include "oneiteration.h"
LOOP(0,0)
(void)havege_cp(h_ctxt, i,0,LOOP_PT(0));
#pragma GCC diagnostic pop
loop_exit:
return ANDPT==0? 0 : 1;
}
#ifdef RAW_IN_ENABLE
/**
* Wrapper for noise injector. When input is injected, the hardclock
* call is not made and the contents of the tic buffer are used
* unchanged from when the inject call was made at the top of the
* loop.
*/
static H_UINT havege_inject( /* RETURN: clock value */
H_COLLECT *h_ctxt, /* IN: workspace */
H_UINT x) /* IN: injected value */
{
if (0==(h_ctxt->havege_raw & H_DEBUG_RAW_IN)) {
HARDCLOCK(x);
}
return x;
}
#endif
/**
* Initialize the collection loop
*/
#if defined (GCC_VERSION) && GCC_VERSION >= 40600
#pragma GCC diagnostic ignored "-Warray-bounds"
#endif
static void havege_ndinit( /* RETURN: None */
H_PTR h_ptr, /* IN-OUT: application instance */
struct h_collect *h_ctxt) /* IN: workspace */
{
char **addr = (char **)(&RESULT[0]);
H_UINT sz;
int i;
h_ctxt->havege_cdidx = LOOP_CT + 1;
(void)havege_gather(h_ctxt);
for (i=0;i<=LOOP_CT;i++) {
if (0 != (h_ptr->havege_opts & H_DEBUG_COMPILE)) {
h_ptr->print_msg("Address %u=%p\n", i, addr[i]);
}
RESULT[i] = labs(addr[i] - addr[LOOP_CT]);
if (i > 0 && 0 != (h_ptr->havege_opts & H_DEBUG_LOOP)) {
h_ptr->print_msg("Loop %u: offset=%u, delta=%u\n", i,RESULT[i],RESULT[i-1]-RESULT[i]);
}
}
h_ptr->i_maxidx = LOOP_CT;
h_ptr->i_maxsz = RESULT[1];
sz = ((CACHE_INST *)(h_ptr->instCache))->size * 1024;
for(i=LOOP_CT;i>0;i--)
if (RESULT[i]>sz)
break;
h_ptr->i_idx = ++i;
h_ptr->i_sz = RESULT[i];
}

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/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2014 Gary Wuertz gary@issiweb.com
** Copyright 2011-2012 BenEleventh Consulting manolson@beneleventh.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HAVEGECOLLECT_H
#define HAVEGECOLLECT_H
/**
** Definitions needed to build haveged
*/
#include "havege.h"
/**
* The collection context
*/
typedef struct h_collect {
void *havege_app; /* Application block */
H_UINT havege_idx; /* Identifer */
H_UINT havege_szCollect; /* Size of collection buffer */
H_UINT havege_raw; /* RAW mode control flags */
H_UINT havege_szFill; /* Fill size */
H_UINT havege_nptr; /* Input pointer */
pRawIn havege_rawInput; /* Injection function */
pRawIn havege_testInput; /* Injection function for test */
H_UINT havege_cdidx; /* normal mode control flags */
H_UINT *havege_pwalk; /* Instance variable */
H_UINT havege_andpt; /* Instance variable */
H_UINT havege_PT; /* Instance variable */
H_UINT havege_PT2; /* Instance variable */
H_UINT havege_pt2; /* Instance variable */
H_UINT havege_PTtest; /* Instance variable */
H_UINT havege_tic; /* Instance variable */
H_UINT *havege_tics; /* loop timer noise buffer */
H_UINT havege_err; /* H_ERR enum for status */
void *havege_tests; /* opague test context */
void *havege_extra; /* other allocations */
H_UINT havege_bigarray[1]; /* collection buffer */
} volatile H_COLLECT;
/**
** Compiler intrinsics are used to make the build more portable and stable
** with fall-backs provided where the intrisics cannot be used.
*/
#ifdef __GNUC__
/* ################################################################################# */
/**
** For the GNU compiler, the use of a cpuid intrinsic is somewhat garbled by the
** fact that some distributions (Centos 5.x) carry an empty cpuid.h (in order
** to back patch glicb?). AFAIK cpuid did not appear in gcc until version 4.3
** although it was in existence before. If we do not have a valid cpuid.h,
** we provide our own copy of the file (from gcc 4.3)
**
** Also, gcc 4.4 and later provide an optimize attribute which remedies the
** effect ever increasing optimization on the collection loop
*/
#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#define ASM __asm__ volatile
/**
** For the intel world...
*/
#ifdef HAVE_ISA_X86
#define ARCH "x86"
#if GCC_VERSION<40300
#undef HAVE_CPUID_H
#endif
#ifdef HAVE_CPUID_H
#include <cpuid.h>
#else
#include "cpuid-43.h"
#endif
/**
** Compatibility wrappers
*/
#define CPUID(level,p)\
{\
register int ecx asm ("ecx") = p[2];\
__cpuid(level,p[0],p[1],p[2],p[3]);\
(void) ecx;\
}
#define HASCPUID(p) __get_cpuid_max(0, p)
/**
** The rdtsc intrinsic is called in by x86intrin.h - also a recent gcc innovation
** There have been some discussions of the code in 4.5 and 4.6, so you may opt
** to use the inline alternative based on GCC_VERSION
*/
#ifdef HAVE_X86INTRIN_H
#include <x86intrin.h>
#endif
#ifdef HAVE___RDTSC
#define HARDCLOCK(x) x=__rdtsc()
#else
#define HARDCLOCK(x) ASM("rdtsc;movl %%eax,%0":"=m"(x)::"ax","dx")
#endif
#else
/**
* Outside the x86 family
*/
#ifdef HAVE_ISA_GENERIC
#define ARCH "generic"
#define ENABLE_CLOCKGETTIME 1
#endif
#ifdef HAVE_ISA_IA64
#define ARCH "ia64"
#define HARDCLOCK(x) ASM("mov %0=ar.itc" : "=r"(x))
#endif
#ifdef HAVE_ISA_SPARC
#define ARCH "sparc"
#define HARDCLOCK(x) ASM("rd %%tick, %0":"=r"(x):"r"(x))
#endif
#ifdef HAVE_ISA_SPARCLITE
#define ARCH "sparclite"
#define HARDCLOCK(x) ASM(".byte 0x83, 0x41, 0x00, 0x00");\
ASM("mov %%g1, %0" : "=r"(x))
#endif
#ifdef HAVE_ISA_PPC
#define ARCH "ppc"
#define HARDCLOCK(x) ASM("mftb %0":"=r"(x)) /* eq. to mftb %0, 268 */
#endif
#ifdef HAVE_ISA_S390
#define ARCH "s390"
#define HARDCLOCK(x) { unsigned long long tsc; ASM("stck %0":"=Q"(tsc)::"cc"); x = (unsigned int)tsc; }
#endif
/**
* /Outside the x86 family
*/
#endif
/**
* Use the "&&" extension to calculate the LOOP_PT
*/
#define CODE_PT(a) a
#define LOOP_PT(a) &&loop##a
/* ################################################################################# */
#endif
/**
* For the MSVC world
*/
#if _MSVC_VERS
/* ################################################################################# */
#define ARCH "x86"
/**
* For the MSVC compilers V8 and above
*/
#include <intrin.h>
/**
* Read the processor timestamp counter
*/
#define HARDCLOCK(x) x=__rdtsc()
/**
* Normalize to the gcc interface
*/
#define CPUID(level,p) return __cpuidx(p, level, p[2])
#define HASCPUID(p) \
{ \
CPUID(0,a,b,c,d) \
}
/**
* Use the __ReturnAddress intrinsic to calculate the LOOP_PT
*/
#define CODE_PT(a) __ReturnAddress()
#define LOOP_PT(a) 0
#endif
/* ################################################################################# */
/**
* Configuration defaults - allow override at compile
*/
#ifndef COLLECT_BUFSIZE
#define COLLECT_BUFSIZE 128 /* collection buffer size in KW */
#endif
#ifndef GENERIC_DCACHE
#define GENERIC_DCACHE 16 /* size of L1 data cache */
#endif
#ifndef GENERIC_ICACHE
#define GENERIC_ICACHE 16 /* size of L1 instruction cache */
#endif
#ifndef LOOP_CT
#define LOOP_CT 40 /* Max interations per collection loop */
#endif
/**
* Other useful definitions
*/
#define BITS_PER_H_UINT (8*sizeof(H_UINT)) /* Bit packing constant */
#define DEFAULT_BUFSZ 1024*sizeof(H_UINT) /* Default for ioSz */
#define MININITRAND 32 /* Number of initial fills to prime RNG */
#define NDSIZECOLLECT (COLLECT_BUFSIZE*1024) /* Collection size: 128K*H_UINT = .5M byte */
/**
** The public collection interface
*/
H_COLLECT *havege_ndcreate(H_PTR hptr, H_UINT nCollector);
void havege_nddestroy(H_COLLECT *rdr);
H_UINT havege_ndread(H_COLLECT *rdr);
void havege_ndsetup(H_PTR hptr);
#endif

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/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2014 Gary Wuertz gary@issiweb.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HAVEGED_H
#define HAVEGED_H
#include "havege.h"
/**
* Settings - default values declared in haveged.c
*/
struct pparams {
char *daemon; /* Daemon name - default is "haveged" */
H_UINT exit_code; /* Exit code */
H_UINT setup; /* setup options */
H_UINT ncores; /* number of cores to use */
H_UINT buffersz; /* size of collection buffer (kb) */
H_UINT detached; /* non-zero if daemonized */
H_UINT foreground; /* non-zero if running in foreground */
H_UINT run_level; /* type of run 0=daemon,1=setup,2=pip,sample kb */
H_UINT d_cache; /* size of data cache (kb) */
H_UINT i_cache; /* size of instruction cache (kb) */
H_UINT low_water; /* write threshold to set - 0 for none */
char *tests_config; /* online test configuration */
char *os_rel; /* path to operating system release */
char *pid_file; /* name of pid file */
char *poolsize; /* path to poolsize */
char *random_device; /* path to random device */
char *sample_in; /* input path for injection diagnostic */
char *sample_out; /* path to sample file */
H_UINT verbose; /* Output level for log or stdout */
char *version; /* Our version */
char *watermark; /* path to write_wakeup_threshold */
char *command; /* command which will be send/received */
};
/**
* Buffer size used when not running as daemon
*/
#define APP_BUFF_SIZE 1024
#define INPUT_DEFAULT "data"
#define OUTPUT_DEFAULT "sample"
#define PID_DEFAULT "/var/run/haveged.pid"
/**
* Setup options (for app)
*/
#define RUN_AS_APP 0x001
#define RANGE_SPEC 0x002
#define USE_STDOUT 0x004
#define CAPTURE 0x008
#define INJECT 0x010
#define RUN_IN_FG 0x020
#define SET_LWM 0x040
#define MULTI_CORE 0x080
#define CMD_MODE 0x100
/**
* Default tests settings
*/
#define TESTS_DEFAULT_APP "ta8b" /* startup tests */
#define TESTS_DEFAULT_RUN "ta8bcb" /* startup + continuous B */
/**
* Run levels for diagnostic build
*/
#define DIAG_RUN_CAPTURE 2 /* output clock ticks */
#define DIAG_RUN_INJECT 4 /* inject clock ticks */
#define DIAG_RUN_TEST 8 /* inject test data */
/**
* Status/monitoring information
*/
typedef struct {
H_UINT n_fill; /* number times filled */
double etime; /* milliseconds for last collection */
double estart; /* start time for calculation */
} H_METER;
/**
* Bail....
*/
void error_exit(const char *, ...);
/**
* Execution notices - to stderr or syslog
*/
void print_msg(const char *, ...);
#endif

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/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2012-2014 Gary Wuertz gary@issiweb.com
** Copyright 2012 BenEleventh Consulting manolson@beneleventh.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HAVEGETEST_H
#define HAVEGETEST_H
/**
* The haveged test suite is built from the 8 tests specified in AIS-31
* organized into test procedure A and test procedure B and structured
* as state machines capable of processing segmented input streams.
*/
#include "havegecollect.h"
/**
* All individual tests and the test procedures use the following
* simple state machine to manage input.
*/
typedef enum {
TEST_INIT, /* initialize test (internal) */
TEST_INPUT, /* test input needed */
TEST_EVAL, /* evaluating results (internal) */
TEST_DONE, /* test complete */
TEST_RETRY, /* retry the test */
TEST_IGNORE, /* ignore failure and continue */
TEST_FAIL /* Test has failed */
} TEST_STATE;
/**
* AIS-31 procedure A uses the FIPS140-1 as test1 thru test4. A disjointedness test is
* used as test0 and a autocorrelation test is used as test5. test0 is executed only
* once, the other tests are repeated in sequence 257 times.
*/
#define AIS_A_REPS 257 /* reps for test1 through test 5 */
/**
* Constants for the fips tests. Note AIS-31 v1 uses the unamended FIPS test limits
*/
#define FIPS_USED 20000
#ifndef USE_AMENDED_FIPS
#define FIPS_MAX_RUN 34
#define FIPS_ONES_LOW 9654
#define FIPS_ONES_HIGH 10346
#define FIPS_POKER_LOW 1562822 /* 1.03 */
#define FIPS_POKER_HIGH 1580438 /* 57.4 */
#define FIPS_RUNS_LOW 2267,1079,502,223,90,90
#define FIPS_RUNS_HIGH 2733,1421,748,402,223,223
#else
#define FIPS_MAX_RUN 25
#define FIPS_ONES_LOW 9725
#define FIPS_ONES_HIGH 10275
#define FIPS_POKER_LOW 1576928 /* 2.16 */
#define FIPS_POKER_HIGH 1576928 /* 46.17 */
#define FIPS_RUNS_LOW 2315,1114,525,240,103,103
#define FIPS_RUNS_HIGH 2685,1386,723,384,209,209
#endif
/**
* test 0 consumes 64k * 48 bits
*/
#define TEST0_LENGTH 65536
#define TEST0_USED (TEST0_LENGTH * 48)
#define TEST5_LENGTH 5000
/**
* Fixed size input for procedure A
*/
#define AIS_A_SIZE (TEST0_USED+(2500*257))
/**
* AIS-31 procedure A results
*/
typedef struct {
H_UINT testResult; /* id 8 bits, pass/fail 8bits */
H_UINT finalValue; /* end result */
} resultA;
/**
* AIS-31 procedure A context. Options are defined in haveged.h
* This puppy weighs in at ~3 MB.
*/
typedef struct {
H_UINT8 *data; /* input for test */
H_UINT range; /* number of bits of input */
H_UINT procState; /* procedure state */
H_UINT procRetry; /* retry indication */
H_UINT testId; /* test selector 0-5 */
H_UINT testRun; /* test index 1 - 1285 */
H_UINT testState; /* FSM state of current test */
H_UINT bridge; /* index for data bridge */
H_UINT bytesUsed; /* number of bytes used */
H_UINT options; /* duty cycle for test5 */
H_UINT8 aux[TEST0_USED]; /* extra work space */
resultA results[1286]; /* test results */
} procA;
/**
* AIS-31 procedure B is a set of multinomial distribution tests
* and an entropy estimate (Coron' test). The distribution tests,
* test6 and test7, require at least AIS_LENGTH sequences of 1, 2
* 4, and 8 bits.
*/
/*
* Bit range of AIS-31 procedure B distribution tests
*/
#define AIS_LENGTH 100000
/**
* AIS-31 test8 constants (Coron's test)
*/
#define Q 2560
#define K 256000
#define LN2 0.69314718055994530941
/**
* AIS-31 procedure B results
*/
typedef struct {
H_UINT testResult; /* id 8 bits, pass/fail 8bits */
double finalValue; /* final value */
} resultB;
/**
* AIS-31 procedure B context, a svelt 1.25 KB
*/
typedef struct {
H_UINT *noise; /* input for test */
H_UINT range; /* number of bits of input */
H_UINT procState; /* procedure state */
H_UINT procRetry; /* retry indication */
H_UINT testId; /* test selector 6-8 */
H_UINT testNbr; /* current test number */
H_UINT testState; /* FSM state of current test */
H_UINT seq; /* aisSeq() sequence needed */
H_UINT bitsUsed; /* bits used by procedure */
H_UINT bridge; /* data bridge test6,7 */
H_UINT counter[8]; /* sequence lengths */
H_UINT einsen[8]; /* sequence counts (ones) */
H_UINT full; /* sequence flags */
H_UINT lastpos[256]; /* counters for test 8 */
H_UINT options; /* RFU */
resultB results[9]; /* test results */
} procB;
/**
* Testing options
*/
#define A_CYCLE 0x000001ff /* test5 duty cycle */
#define A_WARN 0x00000200 /* Only warn of A fails */
#define A_RUN 0x00000400 /* Run procedure A */
#define A_OPTIONS 0x000003ff
#define B_WARN 0x00001000 /* Only warn of B fails */
#define B_RUN 0x00002000 /* Run proceure B */
#define B_OPTIONS 0x00001000
#define X_OPTIONS 0x000f0000 /* isolated test index */
#define X_RUN 0x00100000 /* diagnostic isolated test */
/**
* A test procedure run consists of an indicator and options
*/
typedef struct {
H_UINT action; /* action code A_RUN, B_RUN */
H_UINT options; /* WARN and other options */
} procInst;
/**
* Services provided
*/
typedef int (*ptrDiscard)(H_COLLECT *rdr);
typedef void (*ptrReport)(H_COLLECT * h_ctxt, H_UINT action, H_UINT prod, H_UINT state, H_UINT ct);
typedef int (*ptrRun)(H_COLLECT *rdr, H_UINT prod);
/**
* A test procedure is associated with a collection buffer. Some
* resources are shared by all collection buffers. This includes
* roll-your-own vtable used to avoid polluting the RNG name space
* This structure ends up in hptr->testData
*/
typedef struct {
ptrDiscard discard; /* release test resources */
ptrRun run; /* run test suite */
ptrReport report; /* report test results */
H_UINT options; /* verbosity, etc. */
H_UINT testsUsed; /* tests used */
procInst totTests[2]; /* tot tests to run */
procInst runTests[2]; /* production tests to run */
H_UINT procReps; /* Number of A repetitions */
H_UINT fips_low[6]; /* low runs thresholds */
H_UINT fips_high[6]; /* high runs thresholds */
char totText[8]; /* tot test text rep */
char prodText[8]; /* production test text rep */
H_UINT meters[H_OLT_PROD_B_P+1]; /* test counters */
double lastCoron; /* last test8 result */
double *G; /* test8 lookup table */
} procShared;
/**
* How to get test context and shared data from H_COLLECT
*/
#define TESTS_CONTEXT(c) (onlineTests *)(c->havege_tests)
#define TESTS_SHARED(c) (procShared *)(((H_PTR)(c->havege_app))->testData)
/**
* Online testing context - one per collector. Note szTotal is for diagnostic
* use only, no effort is made to account for overflow.
*/
typedef struct {
H_UINT result; /* nz if failed */
H_UINT totIdx; /* tot test idx */
H_UINT runIdx; /* run test idx */
H_UINT szCarry; /* bits carried in next proc */
H_UINT szTotal; /* total bits processed */
procA *pA; /* procedure A instance */
procB *pB; /* procedure B instance */
} onlineTests;
/**
* Default options are to run the tot tests.
*/
#define DEFAULT_TEST_OPTIONS "ta8b"
/**
* Public interface
*/
int havege_test(procShared *tps, H_PARAMS *params);
#endif

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/**
** Determine HAVEGE environment
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2014 Gary Wuertz gary@issiweb.com
** Copyright 2011-2012 BenEleventh Consulting manolson@beneleventh.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
*/
/**
* This compile unit implements automatic tuning for the havege algorithm. Two
* general methods are used CPUID (intel specific) and VFS (Linux specific). The
* best result of the available methods is returned.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
#include <errno.h>
#include "havegetune.h"
/**
* Text representations of build options
*/
#define BUILD_CLOCK 'C'
#define BUILD_DIAGS 'D'
#define BUILD_CPUID 'I'
#define BUILD_THREADS 'M'
#define BUILD_OLT 'T'
#define BUILD_VFS 'V'
/**
* Text representations of TOPO_MAP sources
*/
static const char *topoReps[] = {
"D", /* SRC_DEFAULT 0x00001 */
"P", /* SRC_PARAM 0x00002 */
"A6", /* SRC_CPUID_AMD6 0x00004 */
"A5", /* SRC_CPUID_AMD5 0x00008 */
"L2", /* SRC_CPUID_INTEL2 0x00010 */
"L4", /* SRC_CPUID_INTEL4 0x00020 */
"V", /* SRC_VFS_INDEX 0x00040 */
"", /* not used 0x00080 */
"C", /* SRC_CPUID_PRESENT 0x00100 */
"H", /* SRC_CPUID_HT 0x00200 */
"A", /* SRC_CPUID_AMD 0x00400 */
"A8", /* SRC_CPUID_AMD8 0x00800 */
"B", /* SRC_CPUID_LEAFB 0x01000 */
"4", /* SRC_CPUID_LEAF4 0x02000 */
"VS", /* SRC_VFS_STATUS 0x04000 */
"VO" /* SRC_VFS_ONLINE 0x08000 */
"VI", /* SRC_VFS_CPUINFO 0x10000 */
"VC", /* SRC_VFS_CPUDIR 0x20000 */
0
};
/**
* Local debugging
*/
#if 0
#define TUNE_DEBUG(...) fprintf(stderr,__VA_ARGS__)
#define TUNE_DUMP 1
static void cfg_dump(HOST_CFG *anchor);
#else
#define TUNE_DEBUG(...)
#endif
/**
* Local prototypes
*/
#ifdef TUNING_VFS_ENABLE
static void cfg_bitClear(TOPO_MAP *m);
static int cfg_bitCount(TOPO_MAP *m);
#endif
static void cfg_bitDecode(char *dest, const char **reps, H_UINT value, H_UINT size);
#if 0
static void cfg_bitDisplay(TOPO_MAP *m);
#endif
static int cfg_bitIntersect(TOPO_MAP *m, TOPO_MAP *t);
static void cfg_bitMerge(TOPO_MAP *m,TOPO_MAP *t);
static int cfg_bitNext(TOPO_MAP *m, int n);
static void cfg_bitSet(TOPO_MAP *m, int n);
static void cfg_cacheAdd(HOST_CFG *anchor, H_UINT src, H_UINT cpu,
H_UINT level, H_UINT type, H_UINT kb);
static void cfg_cpuAdd(HOST_CFG *anchor, H_UINT src, CPU_INST *INST);
/**
* If cpuid not present, no need to generate the code
*/
#ifndef CPUID
#undef TUNING_CPUID_ENABLE
#endif
#ifdef TUNING_CPUID_ENABLE
/************************* CPUID support ***************************************/
/**
* Register names
*/
typedef enum {
EAX, EBX, ECX, EDX
} CPUID_REGNAMES;
#define CPUID_CONFIG(a) cpuid_config(a)
#define CPUID_VENDOR(r) *((H_UINT *)s) = regs[r];s+= sizeof(H_UINT)
/**
* Local CPUID prototypes
*/
#if defined (GCC_VERSION) && GCC_VERSION >= 40400
static void cpuid(int fn, int sfn, H_UINT *regs) __attribute__((optimize(0)));
#else
static void cpuid(int fn, int sfn, H_UINT *regs);
#endif
static void cpuid_config(HOST_CFG *anchor);
static void cpuid_configAmd(HOST_CFG *anchor, CPU_INST *w);
static void cpuid_configIntel(HOST_CFG *anchor, CPU_INST *w);
static void cpuid_configIntel2(HOST_CFG *anchor, CPU_INST *w, H_UINT *regs);
static void cpuid_configIntel4(HOST_CFG *anchor, CPU_INST *w, H_UINT *regs);
#else
#define CPUID_CONFIG(a)
#endif
/************************ /CPUID support ***************************************/
/************************ VFS support ***************************************/
#ifdef TUNING_VFS_ENABLE
#define VFS_LINESIZE 256
/**
* Filter function used by configuration
*/
typedef int (*pFilter)(HOST_CFG *pAnchor, char *input);
typedef int (*pDirFilter)(HOST_CFG *pAnchor, char *input, H_UINT *pArg);
/**
* Definitions
*/
#define VFS_CONFIG(a) vfs_config(a)
/**
* Local filesystem prototypes
*/
static void vfs_config(HOST_CFG *anchor);
static int vfs_configCpuDir(HOST_CFG *anchor, char *input, H_UINT *pArg);
static int vfs_configCpuInfo(HOST_CFG *anchor, char *input);
static int vfs_configDir(HOST_CFG *pAnchor, char *path, pDirFilter filter, H_UINT *pArg);
static int vfs_configFile(HOST_CFG *anchor, char *path, pFilter filter);
static int vfs_configInfoCache(HOST_CFG *pAnchor, char *input, H_UINT *pArg);
static int vfs_configOnline(HOST_CFG *anchor, char *input);
static int vfs_configInt(HOST_CFG *anchor, char *input);
static int vfs_configStatus(HOST_CFG *anchor, char *input);
static int vfs_configType(HOST_CFG *anchor, char *input);
static void vfs_parseList(TOPO_MAP *map, char *input);
static void vfs_parseMask(TOPO_MAP *map, char *input);
#else
#define VFS_CONFIG(a)
#endif
/************************* /VFS support ***************************************/
/**
* Get tuning values for collector
*/
void havege_tune( /* RETURN: none */
HOST_CFG *anchor, /* OUT: tuning info */
H_PARAMS *param) /* IN: config parameters */
{
char *bp = anchor->buildOpts;
int i;
/**
* Capture build options
*/
#ifdef __GNUC__
bp += snprintf(bp, 24, "gcc %d.%d.%d ", __GNUC__ ,__GNUC_MINOR__ , __GNUC_PATCHLEVEL__);
#endif
#if defined(ENABLE_CLOCK_GETTIME)
*bp++ = BUILD_CLOCK;
#endif
#if defined(RAW_IN_ENABLE) || defined(RAW_OUT_ENABLE)
*bp++ = BUILD_DIAGS;
#endif
#ifdef TUNING_CPUID_ENABLE
*bp++ = BUILD_CPUID;
#endif
#if NUMBER_CORES>1
*bp++ = BUILD_THREADS;
#endif
#ifdef ONLINE_TESTS_ENABLE
*bp++ = BUILD_OLT;
#endif
#ifdef TUNING_VFS_ENABLE
*bp++ = BUILD_VFS;
#endif
*bp = 0;
/**
* Virtual file system setup
*/
anchor->procfs = param->procFs==NULL? "/proc" : param->procFs;
anchor->sysfs = param->sysFs==NULL? "/sys" : param->sysFs;
/**
* The order determines preference
*/
if (param->icacheSize != 0)
cfg_cacheAdd(anchor, SRC_PARAM, -1, 1, 'I', param->icacheSize);
if (param->dcacheSize != 0)
cfg_cacheAdd(anchor, SRC_PARAM, -1, 1, 'D', param->dcacheSize);
/**
* Bypass configuration if entirely specified
*/
if (param->icacheSize == 0 || param->dcacheSize == 0) {
CPUID_CONFIG(anchor);
VFS_CONFIG(anchor);
cfg_cacheAdd(anchor, SRC_DEFAULT, -1, 1, 'I', GENERIC_ICACHE);
cfg_cacheAdd(anchor, SRC_DEFAULT, -1, 1, 'D', GENERIC_DCACHE);
}
/**
* Make sure there is at least 1 cpu instance. cpus configuration is considered
* homogeneous so only the first will be reported/used.
*/
if (0 == anchor->ctCpu)
cfg_cpuAdd(anchor, 0, NULL);
cfg_bitDecode(anchor->cpuOpts, topoReps, anchor->cpus[0].cpuMap.source, SZ_CPUREP);
#ifdef TUNE_DUMP
cfg_dump(anchor);
#endif
anchor->d_tune = anchor->i_tune = MAX_CACHES+2;
for (i=0;i<anchor->ctCache;i++) {
if (anchor->caches[i].level==1) {
switch(anchor->caches[i].type) {
case 'I': case 'T':
if (i < (int)anchor->i_tune)
anchor->i_tune = i;
break;
case 'D':
if (i < (int)anchor->d_tune)
anchor->d_tune = i;
break;
}
}
}
cfg_bitDecode(anchor->icacheOpts, topoReps,
anchor->caches[anchor->i_tune].cpuMap.source, SZ_CACHEREP);
cfg_bitDecode(anchor->dcacheOpts, topoReps,
anchor->caches[anchor->d_tune].cpuMap.source, SZ_CACHEREP);
TUNE_DEBUG("havege_tune %d/%d\n", anchor->i_tune, anchor->d_tune);
}
#ifdef TUNING_VFS_ENABLE
/**
* Return number of bits set in map
*/
static void cfg_bitClear( /* RETURN : None */
TOPO_MAP *m) /* IN: bitmap */
{
memset(&m->bits[0], 0, MAX_BIT_IDX * sizeof(H_UINT));
}
/**
* Return number of bits set in map
*/
static int cfg_bitCount( /* RETURN : None */
TOPO_MAP *m) /* IN: bitmap */
{
int n, ct=0;
for(n=-1;(n=cfg_bitNext(m,n))!=-1;ct++) ;
return ct;
}
#endif
/**
* decode bit representation
*/
static void cfg_bitDecode( /* RETURN: None */
char *dest, /* OUT: target */
const char **reps, /* IN: codes */
H_UINT value, /* IN: value to decode */
H_UINT size) /* IN: max range */
{
H_UINT i=0;
const char *s;
size -= 1;
while(value!= 0 && *reps != 0) {
s = *reps++;
if ((value & 1) != 0) {
if (i>0 && i < size)
dest[i++] = ' ';
while(*s != 0 && i < size)
dest[i++] = *s++;
}
value >>= 1;
}
dest[i] = 0;
}
#if 0
/**
* Display topo bit map - cpuset(7) convention is big-endian
*/
static void cfg_bitDisplay( /* RETURN : None */
TOPO_MAP *m) /* IN: bitmap */
{
int n;
for(n=m->msw;n>=0 && n < (int)MAX_BIT_IDX;n--)
printf(" %08x", m->bits[n]);
}
#endif
/**
* Test if maps intersect
*/
static int cfg_bitIntersect( /* RETURN: None */
TOPO_MAP *m, /* OUT: bitmap */
TOPO_MAP *t) /* IN: bit to set */
{
H_UINT i;
for (i=0;i < MAX_BIT_IDX;i++)
if (0!=(m->bits[i] & t->bits[i]))
return 1;
return 0;
}
/**
* Merge two maps
*/
static void cfg_bitMerge( /* RETURN: None */
TOPO_MAP *m, /* OUT: bitmap */
TOPO_MAP *t) /* IN: bits to set */
{
int i;
for (i=0;i<(int)MAX_BIT_IDX;i++) {
m->bits[i] |= t->bits[i];
if (0 != m->bits[i] && i > m->msw)
m->msw = i;
}
}
/**
* Find next bit in topo bit map
*/
static int cfg_bitNext ( /* RETURN: index of next bit or -1 */
TOPO_MAP *m, /* IN: bitmap */
int n) /* IN: prev bit use -1 for first */
{
int bit, word;
bit = (n+1) % BITS_PER_H_UINT;
for(word = (n+1) / BITS_PER_H_UINT;word <= m->msw && word < (int)MAX_BIT_IDX;word++) {
for(;bit<(int)BITS_PER_H_UINT; bit++)
if (m->bits[word] & 1<< bit)
return word * BITS_PER_H_UINT + bit;
bit = 0;
}
return -1;
}
/**
* Set a bit in the topo bit map
*/
static void cfg_bitSet( /* RETURN: None */
TOPO_MAP *m, /* OUT: bitmap */
int n) /* IN: bit to set */
{
int word;
word = n / BITS_PER_H_UINT;
if (word < (int)MAX_BIT_IDX) {
if (word > m->msw)
m->msw = word;
m->bits[word] |= 1 << (n % BITS_PER_H_UINT);
}
}
/**
* Add cache description to configuration
*/
static void cfg_cacheAdd( /* RETURN: None */
HOST_CFG *anchor, /* IN-OUT: configuration */
H_UINT src, /* IN: source */
H_UINT cpu, /* IN: use -1 for all */
H_UINT level, /* IN: cache level */
H_UINT type, /* IN: cache type */
H_UINT kb) /* IN: cache size in kb */
{
int i;
TUNE_DEBUG("cacheAdd(%x, %d,%d,%d,%c)\n", src, cpu, level, kb, type);
if (3 < level || 0 ==kb) return;
for(i = 0;i < anchor->ctCache;i++)
if (anchor->caches[i].level == level &&
anchor->caches[i].type == type &&
anchor->caches[i].size == kb)
break;
if (i >= MAX_CACHES) return;
if (-1 == (int)cpu)
cfg_bitMerge(&anchor->caches[i].cpuMap, &anchor->pCacheInfo);
else cfg_bitSet(&anchor->caches[i].cpuMap, cpu);
anchor->caches[i].cpuMap.source |= src;
if (i < anchor->ctCache) return;
anchor->caches[i].level = level;
anchor->caches[i].type = type;
anchor->caches[i].size = kb;
anchor->ctCache += 1;
}
/**
* Add cpu description to configuration
*/
static void cfg_cpuAdd( /* RETURN: None */
HOST_CFG *anchor, /* IN-OUT: configuration */
H_UINT src, /* IN: source */
CPU_INST *inst) /* IN: instance */
{
int i=0;
TUNE_DEBUG("cpuAdd(%x)\n", src);
if (NULL==inst) {
cfg_bitSet(&anchor->cpus[i].cpuMap, 0);
anchor->ctCpu = 1;
return;
}
for(i=0;i < anchor->ctCpu;i++)
if (0 != cfg_bitIntersect(&anchor->cpus[i].cpuMap, &inst->cpuMap)) {
cfg_bitMerge(&anchor->cpus[i].cpuMap, &inst->cpuMap);
anchor->cpus[i].cpuMap.source |= src;
return;
}
if (i >= MAX_CPUS) return;
memcpy(&anchor->cpus[i], inst, sizeof(CPU_INST));
anchor->cpus[i].cpuMap.source = src;
anchor->ctCpu += 1;
}
#ifdef TUNE_DUMP
/**
* Diagnostic dump
*/
static void cfg_dump( /* RETURN: None */
HOST_CFG *anchor) /* IN: configuration */
{
int i;
for(i=0;i < anchor->ctCpu;i++)
printf("Cpu: %08x\n",
anchor->caches[i].cpuMap.source
);
for(i = 0;i < anchor->ctCache;i++)
printf("Cache: %08x %d, %c, %d\n",
anchor->caches[i].cpuMap.source,
anchor->caches[i].level,
anchor->caches[i].type,
anchor->caches[i].size
);
}
#endif
#ifdef TUNING_CPUID_ENABLE
/************************* CPUID support ***************************************/
/**
* Wrapper around the cpuid macro to assist in debugging
*/
static void cpuid( /* RETURN: none */
int fn, /* IN: function code */
int sfn, /* IN: subfunction */
H_UINT *regs) /* IN-OUT: Workspace */
{
regs[2] = sfn;
CPUID(fn, regs);
}
/**
* Get configuration
*/
static void cpuid_config( /* RETURN: none */
HOST_CFG *anchor) /* IN-OUT: result */
{
CPU_INST wsp;
H_UINT regs[4];
char *s;
if (HASCPUID(regs)) {
memset(&wsp, 0, sizeof(CPU_INST));
wsp.flags |= SRC_CPUID_PRESENT;
cpuid(0x00,0,regs);
wsp.maxFn = regs[EAX];
s = wsp.vendor;
CPUID_VENDOR(EBX);
CPUID_VENDOR(EDX);
CPUID_VENDOR(ECX);
if (regs[EBX] == 0x68747541)
wsp.flags |= SRC_CPUID_AMD;
(void)cpuid(0x80000000,0,regs);
wsp.maxFnx = regs[EAX];
(void)cpuid(0x01,0,regs);
wsp.signature = regs[EAX];
if ((regs[EDX] & (1<<28)) != 0)
wsp.flags |= SRC_CPUID_HT;
TUNE_DEBUG("cpuid_config %s fn=%d fnx=%x flags=%x\n", (char *)wsp.vendor,
wsp.maxFn, wsp.maxFnx, wsp.flags);
if (0!=(wsp.flags & SRC_CPUID_AMD))
cpuid_configAmd(anchor, &wsp);
else cpuid_configIntel(anchor, &wsp);
}
}
/**
* AMD cpuid Configuration. Reference: Publication 25481, Revision 2.34, Sept 2010
*/
static void cpuid_configAmd(
HOST_CFG *anchor, /* IN-OUT: result */
CPU_INST *w) /* IN-OUT: Workspace */
{
H_UINT regs[4];
int i, n;
switch((w->maxFnx&15)) {
case 8:
cpuid(0x80000008,0,regs);
n = 1 + (regs[ECX] & 0xff);
for(i=0;i<n;i++)
cfg_bitSet(&w->cpuMap, i);
cfg_cpuAdd(anchor, SRC_CPUID_AMD8, w);
/* fallthrough */
case 6:
cpuid(0x80000006,0,regs);
cfg_cacheAdd(anchor, SRC_CPUID_AMD6, -1, 2, 'U', (regs[ECX]>>16) & 0xffff);
cfg_cacheAdd(anchor, SRC_CPUID_AMD6, -1, 3, 'U', ((regs[EDX]>>18) & 0x3fff)<<9);
/* fallthrough */
case 5:
cpuid(0x80000005,0,regs);
cfg_cacheAdd(anchor, SRC_CPUID_AMD5, -1, 1, 'D', (regs[ECX]>>24) & 0xff);
cfg_cacheAdd(anchor, SRC_CPUID_AMD5, -1, 1, 'I', (regs[EDX]>>24) & 0xff);
break;
}
}
/**
* Intel cpuid configuration. Reference: Publication 241618
* Processor Identification and CPUID Instruction
* Application node 485, Jan 2011
*/
static void cpuid_configIntel(
HOST_CFG *anchor, /* IN-OUT: result */
CPU_INST *w) /* IN-OUT: Workspace */
{
H_UINT regs[4];
if (w->maxFn >=0x0b) {
regs[ECX] = 0;
cpuid(0x0b,0,regs);
if (regs[EBX]!=0)
w->flags |= SRC_CPUID_LEAFB;
}
#if 0
if (w->flags & SRC_CPUID_HT)
;
else
;
#endif
if (w->maxFn >=4)
cpuid_configIntel4(anchor, w, regs);
if (w->maxFn >= 2)
cpuid_configIntel2(anchor, w, regs);
}
/**
* Configure caches using cpuid leaf 2. This is a legacy method that only determines
* level 1 cache. Still needed because trace cache is not reported elsewhere.
*/
static void cpuid_configIntel2(
HOST_CFG *anchor, /* IN-OUT: result */
CPU_INST *w, /* IN-OUT: Workspace */
H_UINT *regs) /* IN-OUT: registers */
{
/* L1 and Trace as per Intel application note 485, May 2012 */
static const H_UINT defs[] = {
0x06, 'I', 8 , /* 4-way set assoc, 32 byte line size */
0x08, 'I', 16 , /* 4-way set assoc, 32 byte line size */
0x09, 'I', 32 , /* 4-way set assoc, 64 byte line size + */
0x0a, 'D', 8 , /* 2 way set assoc, 32 byte line size */
0x0c, 'D', 16 , /* 4-way set assoc, 32 byte line size */
0x0d, 'D', 16 , /* 4-way set assoc, 64 byte line size + */
0x0e, 'D', 24 , /* 6-way set assoc, 64 byte line size */
0x10, 'D', 16 , /* 4-way set assoc, 64 byte line size */
0x15, 'I', 16 , /* 4-way set assoc, 64 byte line size */
0x2c, 'D', 32 , /* 8-way set assoc, 64 byte line size */
0x30, 'I', 32 , /* 8-way set assoc, 64 byte line size */
0x60, 'D', 16 , /* 8-way set assoc, sectored cache, 64 byte line size */
0x66, 'D', 8 , /* 4-way set assoc, sectored cache, 64 byte line size */
0x67, 'D', 16 , /* 4-way set assoc, sectored cache, 64 byte line size */
0x68, 'D', 32 , /* 4-way set assoc, sectored cache, 64 byte line size */
0x70, 'T', 12 , /* 8-way set assoc, trace cache */
0x71, 'T', 16 , /* 8-way set assoc, trace cache */
0x72, 'T', 32 , /* 8-way set assoc, trace cache */
0x73, 'T', 64 , /* 8-way set assoc, trace cache */
0x00, 0, 0 /* sentinel */
};
H_UINT i, j, n, m;
cpuid(0x02,0,regs);
n = regs[EAX]&0xff;
while(n--) {
for (i=0;i<4;i++) {
if (0==(regs[i] & 0x80000000)) {
while(0 != regs[i]) {
m = regs[i] & 0xff;
if (m==0xff)
w->flags |= SRC_CPUID_LEAF4;
else for (j=0;0 != defs[j];j += 3)
if (defs[j]==m) {
cfg_cacheAdd(anchor, SRC_CPUID_INTEL2, -1, 1, defs[j+1], defs[j+2]);
break;
}
regs[i]>>=8;
}
}
}
if (n) cpuid(0x02,0,regs);
}
}
/**
* Configure caches using cpuid leaf 4
*/
static void cpuid_configIntel4(
HOST_CFG *anchor, /* IN-OUT: result */
CPU_INST *w, /* IN-OUT: Workspace */
H_UINT *regs) /* IN-OUT: registers */
{
H_UINT level, type;
H_UINT i, j, lineSz, nParts, nWays, sz;
for(i=0;i<MAX_CACHES;i++) {
cpuid(0x04,i,regs);
if (0==i) {
H_UINT n = 1 + (regs[EAX]>>26);
for(j=0;j<n;j++)
cfg_bitSet(&w->cpuMap, j);
cfg_cpuAdd(anchor, SRC_CPUID_INTEL4, w);
}
switch(regs[EAX] & 31) {
case 0: type = 0 ; break;
case 1: type = 'D'; break;
case 2: type = 'I'; break;
case 3: type = 'U'; break;
default: type = '?'; break;
}
if (0==type) break;
regs[EAX] >>= 5;
level = (H_UINT)(regs[EAX] & 7);
lineSz = 1 + (regs[EBX] & 0xfff);
regs[EBX] >>= 12;
nParts = 1 + (regs[EBX] & 0x3ff);
regs[EBX] >>= 10;
nWays = 1 + regs[EBX];
sz = (nWays * nParts * lineSz * (regs[ECX]+1)) / 1024;
cfg_cacheAdd(anchor, SRC_CPUID_INTEL4, -1, level, type, sz);
}
}
#endif
/************************* CPUID support ***************************************/
/************************* VFS support ***************************************/
#ifdef TUNING_VFS_ENABLE
/**
* Get configuration
*/
static void vfs_config(
HOST_CFG *anchor) /* IN-OUT: result */
{
char path[FILENAME_MAX];
CPU_INST inst;
H_UINT args[2];
int n;
args[0] = args[1] = 0;
snprintf(path, FILENAME_MAX, "%s/self/status", anchor->procfs);
if (-1 != vfs_configFile(anchor, path, vfs_configStatus))
args[0] |= SRC_VFS_STATUS;
snprintf(path, FILENAME_MAX, "%s/devices/system/cpu/online", anchor->sysfs);
if (-1 != vfs_configFile(anchor, path, vfs_configOnline))
args[0] |= SRC_VFS_ONLINE;
snprintf(path, FILENAME_MAX, "%s/cpuinfo", anchor->procfs);
if (-1 != vfs_configFile(anchor, path, vfs_configCpuInfo))
args[0] |= SRC_VFS_CPUINFO;
snprintf(path, FILENAME_MAX, "%s/devices/system/cpu", anchor->sysfs);
if (-1 != vfs_configDir(anchor, path, vfs_configCpuDir, args)) {
memset(&inst, 0, sizeof(CPU_INST));
args[0] |= SRC_VFS_CPUDIR;
for(n=-1;(n=cfg_bitNext(&anchor->pCpuInfo,n))!=-1;)
cfg_bitSet(&inst.cpuMap, n);
if (cfg_bitCount(&inst.cpuMap)>0)
cfg_cpuAdd(anchor, SRC_VFS_CPUINFO, &inst);
}
for(n=-1;(n=cfg_bitNext(&anchor->pCacheInfo,n))!=-1;) {
snprintf(path, FILENAME_MAX, "%s/devices/system/cpu/cpu%d/cache", anchor->sysfs, n);
args[1] = n;
vfs_configDir(anchor, path, vfs_configInfoCache, args);
}
}
/**
* Call back to get cpus and from cpu subdirectories
*/
static int vfs_configCpuDir(
HOST_CFG *anchor, /* IN-OUT: result */
char *input, /* filename */
H_UINT *pArg) /* parameter */
{
(void)pArg;
if (strlen(input)> 3) {
char term[32];
int cpu;
cpu = atoi(input+3);
(void)snprintf(term, 32, "cpu%d", cpu);
if (!strcmp(term, input))
cfg_bitSet(&anchor->pCacheInfo, cpu);
}
return 0;
}
/**
* Call back to get cpus from cpuinfo
*/
static int vfs_configCpuInfo(
HOST_CFG *anchor, /* IN-OUT: result */
char *input) /* input text */
{
char *s = strchr(input, ':');
if (NULL != s) {
char key[32], value[32];
*s++ = '\0';
if (1==sscanf(input, "%31s", key) && 1==sscanf(s, "%31s", value)) {
if (!strcmp("processor",key))
cfg_bitSet(&anchor->pCpuInfo, atoi(value));
}
}
return 0;
}
/**
* Process a configuration directory
*/
static int vfs_configDir(
HOST_CFG *pAnchor, /* IN-OUT: result */
char *path, /* IN: directory path */
pDirFilter filter, /* IN: entry filter */
H_UINT *pArg) /* IN: filter arg */
{
DIR *d;
int rv=-1;
if (NULL != (d = opendir(path))) {
struct dirent *ent;
while (NULL!=(ent = readdir(d))) {
if (0!=(rv = (*filter)(pAnchor, ent->d_name, pArg)))
break;
}
(void)closedir(d);
}
return rv;
}
/**
* Process a configuration file
*/
static int vfs_configFile(
HOST_CFG *pAnchor, /* IN-OUT: result */
char *path, /* IN: file path */
pFilter filter) /* IN: input filter */
{
FILE *f;
int rv=-1;
if (NULL != (f = fopen(path, "rb"))) {
char buf[VFS_LINESIZE];
while(fgets(buf, VFS_LINESIZE, f))
if (0!=(rv = (*filter)(pAnchor, buf)))
break;
fclose(f);
}
return rv;
}
/**
* Call back to get cache details
*/
static int vfs_configInfoCache(
HOST_CFG *pAnchor, /* IN-OUT: result */
char *input, /* IN: path name */
H_UINT *pArgs)
{
if (strlen(input)> 5) {
char path[FILENAME_MAX];
int idx;
idx = atoi(input+5);
(void)snprintf(path, 32, "index%d", idx);
if (!strcmp(path, input)) {
int plen, ctype, level, size;
plen = snprintf(path, FILENAME_MAX, "%s/devices/system/cpu/cpu%d/cache/index%d/level",
pAnchor->sysfs, pArgs[1], idx) - 5;
level = vfs_configFile(pAnchor, path, vfs_configInt);
strcpy(path+plen, "type");
ctype = vfs_configFile(pAnchor, path, vfs_configType);
strcpy(path+plen, "size");
size = vfs_configFile(pAnchor, path, vfs_configInt);
if (size == -1)
size = ctype == 'I' ? GENERIC_ICACHE : GENERIC_DCACHE;
cfg_cacheAdd(pAnchor, SRC_VFS_INDEX, pArgs[1], level, ctype, size);
}
}
return 0;
}
/**
* Call back to get cpus from online file
*/
static int vfs_configOnline(
HOST_CFG *anchor, /* IN-OUT: result */
char *input) /* IN: input text */
{
vfs_parseList(&anchor->pOnline, input);
return 1;
}
/**
* Call back to return a single integer input
*/
static int vfs_configInt(
HOST_CFG *anchor, /* IN-OUT: result */
char *input) /* IN: input text */
{
(void)anchor;
return atoi(input);
}
/**
* Call back to get cpus and memory from status file
*/
static int vfs_configStatus(
HOST_CFG *anchor, /* IN-OUT: result */
char *input) /* IN: input text */
{
char *s = strchr(input, ':');
if (NULL != s) {
char key[32], value[VFS_LINESIZE-32];
*s++ = '\0';
if (1==sscanf(input, "%31s", key) && 1==sscanf(s, "%223s", value)) {
if (!strcmp("Cpus_allowed", key))
vfs_parseMask(&anchor->pAllowed, value);
else if (!strcmp("Mems_allowed", key))
vfs_parseMask(&anchor->mAllowed, value);
}
}
return 0;
}
/**
* Call back to return the first byte of input
*/
int vfs_configType(
HOST_CFG *anchor, /* IN-OUT: result */
char *input) /* IN: input text */
{
(void) anchor;
return input[0];
}
/**
* Parse the List format described in cpuset(7)
*/
static void vfs_parseList( /* RETURN: None */
TOPO_MAP *map, /* OUT: bit map */
char *input) /* IN: list text */
{
char *term, c;
int bounds[2], n;
cfg_bitClear(map);
for(term = strtok(input, ",");term != NULL;term = strtok(NULL, ",")) {
n = bounds[0] = bounds[1] = 0;
while(0 != (int)(c = *term++))
switch(c) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
bounds[n] = bounds[n] * 10 + (int)(c - '0');
break;
case '-':
n = 1;
}
cfg_bitSet(map, bounds[0]);
if (0 != n)
while(++bounds[0] <= bounds[1])
cfg_bitSet(map, bounds[0]);
}
}
/**
* Parse the Mask format described in cpuset(7)
*/
static void vfs_parseMask( /* RETURN: None */
TOPO_MAP *map, /* OUT: bit map */
char *input) /* IN: list text */
{
char *term, c;
int m, n;
cfg_bitClear(map);
for(term = strtok(input, ",");term != NULL;term = strtok(NULL, ",")) {
m = 0;
while(0 != (int)(c = *term++))
switch(c) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
m = m * 16 + (int)(c - '0');
break;
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
m = m * 16 + (int)(c - 'A') + 10;
break;
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
m = m * 16 + (int)(c - 'a') + 10;
}
for(n=map->msw;n>=0;n--)
map->bits[n+1] = map->bits[n];
if (0 != map->bits[map->msw+1])
map->msw++;
map->bits[0] = 0;
for(n=0;n<32;n++)
if (m & (1<<n))
cfg_bitSet(map, n);
}
}
#endif
/************************* VFS support ***************************************/

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/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2014 Gary Wuertz gary@issiweb.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HAVEGETUNE_H
#define HAVEGETUNE_H
#include "havegecollect.h"
/**
* Some systems supply a maximum
*/
#ifndef FILENAME_MAX
#define FILENAME_MAX 256 /* Max path length */
#endif
/**
* Limits
*/
#define MAX_BIT_IDX (256/BITS_PER_H_UINT) /* Size of resource bitmaps */
#define MAX_CACHES 8 /* Max cache types */
#define MAX_CPUS 8 /* Max cpu types */
/**
* Object used to represent a set of objects
*/
typedef struct {
H_UINT bits[MAX_BIT_IDX];
int msw;
H_UINT source;
} TOPO_MAP;
/**
* Cache instance
*/
typedef struct {
TOPO_MAP cpuMap; /* what cpus have this cache */
H_UINT type; /* 'I'nstruction, 'D'ata, 'U'nified, 'T'race */
H_UINT level; /* 0-15................ */
H_UINT size; /* size in KB */
} CACHE_INST;
/**
* Sources for CACHE_INST TOPO_MAP
*/
#define SRC_DEFAULT 0x00001
#define SRC_PARAM 0x00002
#define SRC_CPUID_AMD6 0x00004
#define SRC_CPUID_AMD5 0x00008
#define SRC_CPUID_INTEL2 0x00010
#define SRC_CPUID_INTEL4 0x00020
#define SRC_VFS_INDEX 0x00040
/**
* CPU instance
*/
typedef struct {
TOPO_MAP cpuMap; /* what cpus have this config */
H_UINT signature; /* processor signature */
H_UINT flags;
H_UINT maxFn;
H_UINT maxFnx;
char vendor[16];
} CPU_INST;
/**
* Sources for CPU_INST TOPO_MAP
*/
#define SRC_CPUID_PRESENT 0x00100
#define SRC_CPUID_HT 0x00200
#define SRC_CPUID_AMD 0x00400
#define SRC_CPUID_AMD8 0x00800
#define SRC_CPUID_LEAFB 0x01000
#define SRC_CPUID_LEAF4 0x02000
#define SRC_VFS_STATUS 0x04000
#define SRC_VFS_ONLINE 0x08000
#define SRC_VFS_CPUINFO 0x10000
#define SRC_VFS_CPUDIR 0x20000
/**
* Size of representation fields
*/
#define SZ_BUILDREP 32
#define SZ_CPUREP 64
#define SZ_CACHEREP 32
/**
* The result of tuning
*/
typedef struct {
char *procfs; /* where proc is mounted */
char *sysfs; /* where sys is mounted */
char buildOpts[SZ_BUILDREP]; /* build options */
char cpuOpts[SZ_CPUREP]; /* cpu options */
char icacheOpts[SZ_CACHEREP]; /* icache options */
char dcacheOpts[SZ_CACHEREP]; /* dcache options */
TOPO_MAP pAllowed; /* allowed processors */
TOPO_MAP pOnline; /* processors online */
TOPO_MAP pCpuInfo; /* processors with info */
TOPO_MAP pCacheInfo; /* processors with cache info */
TOPO_MAP mAllowed; /* allowed memory */
H_UINT a_cpu; /* suggested cpu */
H_UINT i_tune; /* suggested i cache value */
H_UINT d_tune; /* suggested d cache value */
int ctCpu; /* number of cpu types */
int ctCache; /* number of cache items */
CPU_INST cpus[MAX_CPUS]; /* cpu instances */
CACHE_INST caches[MAX_CACHES+2]; /* cache instances */
} HOST_CFG;
/**
* Tuning interface
*/
void havege_tune(HOST_CFG *env, H_PARAMS *params);
#endif

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/**
** Simple entropy harvester based upon the havege RNG
**
** Copyright 2018-2021 Jirka Hladky hladky DOT jiri AT gmail DOT com
** Copyright 2009-2013 Gary Wuertz gary@issiweb.com
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
** This source is an adaptation of work released as
**
** Copyright (C) 2006 - André Seznec - Olivier Rochecouste
**
** under version 2.1 of the GNU Lesser General Public License
**
** The original form is retained with minor variable renames for
** more consistent macro itilization. See havegecollect.c for
** details.
*/
/* ------------------------------------------------------------------------
* On average, one iteration accesses two 8-word blocks in the PWALK
* table, and generates 16 words in the RESULT array.
*
* The data read in the Walk table are updated and permuted after each use.
* The result of the hardware clock counter read is used for this update.
*
* 21 conditional tests are present. The conditional tests are grouped in
* two nested groups of 10 conditional tests and 1 test that controls the
* permutation.
*
* In average, there should be 4 tests executed and, in average, 2 of them
* should be mispredicted.
* ------------------------------------------------------------------------
*/
PTTEST = PT >> 20;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
}
}
}
}
}
}
}
}
}
};
PTTEST = PTTEST >> 1;
pt = (PT >> 18) & 7;
PT = PT & ANDPT;
HARDCLOCKR(HTICK1);
Pt0 = &PWALK[PT];
Pt1 = &PWALK[PT2];
Pt2 = &PWALK[PT ^ 1];
Pt3 = &PWALK[PT2 ^ 4];
RESULT[i++] ^= *Pt0;
RESULT[i++] ^= *Pt1;
RESULT[i++] ^= *Pt2;
RESULT[i++] ^= *Pt3;
inter = ROR32(*Pt0,1) ^ HTICK1;
*Pt0 = ROR32(*Pt1,2) ^ HTICK1;
*Pt1 = inter;
*Pt2 = ROR32(*Pt2, 3) ^ HTICK1;
*Pt3 = ROR32(*Pt3, 4) ^ HTICK1;
Pt0 = &PWALK[PT ^ 2];
Pt1 = &PWALK[PT2 ^ 2];
Pt2 = &PWALK[PT ^ 3];
Pt3 = &PWALK[PT2 ^ 6];
RESULT[i++] ^= *Pt0;
RESULT[i++] ^= *Pt1;
RESULT[i++] ^= *Pt2;
RESULT[i++] ^= *Pt3;
if (PTTEST & 1) {
Ptinter = Pt0;
Pt2 = Pt0;
Pt0 = Ptinter;
}
PTTEST = (PT2 >> 18);
inter = ROR32(*Pt0, 5) ^ HTICK1;
*Pt0 = ROR32(*Pt1, 6) ^ HTICK1;
*Pt1 = inter;
HARDCLOCKR(HTICK2);
*Pt2 = ROR32(*Pt2, 7) ^ HTICK2;
*Pt3 = ROR32(*Pt3, 8) ^ HTICK2;
Pt0 = &PWALK[PT ^ 4];
Pt1 = &PWALK[PT2 ^ 1];
PT2 = (RESULT[(i - 8) ^ PT1] ^ PWALK[PT2 ^ PT1 ^ 7]);
PT2 = ((PT2 & ANDPT) & (0xfffffff7)) ^ ((PT ^ 8) & 0x8);
/* avoid PT and PT2 to point on the same cache block */
PT1 = ((PT2 >> 28) & 7);
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
if (PTTEST & 1) {
PTTEST ^= 3; PTTEST = PTTEST >> 1;
}
}
}
}
}
}
}
}
}
};
Pt2 = &PWALK[PT ^ 5];
Pt3 = &PWALK[PT2 ^ 5];
RESULT[i++] ^= *Pt0;
RESULT[i++] ^= *Pt1;
RESULT[i++] ^= *Pt2;
RESULT[i++] ^= *Pt3;
inter = ROR32(*Pt0 , 9) ^ HTICK2;
*Pt0 = ROR32(*Pt1 , 10) ^ HTICK2;
*Pt1 = inter;
*Pt2 = ROR32(*Pt2, 11) ^ HTICK2;
*Pt3 = ROR32(*Pt3, 12) ^ HTICK2;
Pt0 = &PWALK[PT ^ 6];
Pt1 = &PWALK[PT2 ^ 3];
Pt2 = &PWALK[PT ^ 7];
Pt3 = &PWALK[PT2 ^ 7];
RESULT[i++] ^= *Pt0;
RESULT[i++] ^= *Pt1;
RESULT[i++] ^= *Pt2;
RESULT[i++] ^= *Pt3;
inter = ROR32(*Pt0, 13) ^ HTICK2;
*Pt0 = ROR32(*Pt1, 14) ^ HTICK2;
*Pt1 = inter;
*Pt2 = ROR32(*Pt2, 15) ^ HTICK2;
*Pt3 = ROR32(*Pt3, 16) ^ HTICK2;
/* avoid PT and PT2 to point on the same cache block */
PT = (((RESULT[(i - 8) ^ pt] ^ PWALK[PT ^ pt ^ 7])) &
(0xffffffef)) ^ ((PT2 ^ 0x10) & 0x10);