/sbin/fixfiles is in policycoreutils 2.6-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 | #!/bin/bash
# fixfiles
#
# Script to restore labels on a SELinux box
#
# Copyright (C) 2004-2013 Red Hat, Inc.
# Authors: Dan Walsh <dwalsh@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# seclabel support was added in 2.6.30. This function will return a positive
# number if the current kernel version is greater than 2.6.30, a negative
# number if the current is less than 2.6.30 and 0 if they are the same.
#
function useseclabel {
VER=`uname -r`
SUP=2.6.30
expr '(' "$VER" : '\([^.]*\)' ')' '-' '(' "$SUP" : '\([^.]*\)' ')' '|' \
'(' "$VER.0" : '[^.]*[.]\([^.]*\)' ')' '-' '(' "$SUP.0" : '[^.]*[.]\([^.]*\)' ')' '|' \
'(' "$VER.0.0" : '[^.]*[.][^.]*[.]\([^.]*\)' ')' '-' '(' "$SUP.0.0" : '[^.]*[.][^.]*[.]\([^.]*\)' ')'
}
#
# Get all mount points that support labeling. Use the 'seclabel' field if it
# is available. Else fall back to known fs types which likely support xattrs
# and we know were not context mounted.
#
get_all_labeled_mounts() {
FS="`cat /proc/self/mounts | sort | uniq | awk '{print $2}'`"
for i in $FS; do
if [ `useseclabel` -ge 0 ]
then
grep " $i " /proc/self/mounts | awk '{print $4}' | egrep --silent '(^|,)seclabel(,|$)' && echo $i
else
grep " $i " /proc/self/mounts | grep -v "context=" | egrep --silent '(ext[234]| ext4dev | gfs2 | xfs | jfs | btrfs )' && echo $i
fi
done
}
get_rw_labeled_mounts() {
FS=`get_all_labeled_mounts | sort | uniq`
for i in $FS; do
grep " $i " /proc/self/mounts | awk '{print $4}' | egrep --silent '(^|,)rw(,|$)' && echo $i
done
}
get_ro_labeled_mounts() {
FS=`get_all_labeled_mounts | sort | uniq`
for i in $FS; do
grep " $i " /proc/self/mounts | awk '{print $4}' | egrep --silent '(^|,)ro(,|$)' && echo $i
done
}
#
# Get the default label returned from the kernel for a file with a lable the
# kernel does not understand
#
get_undefined_type() {
SELINUXMNT=`grep selinuxfs /proc/self/mountinfo | head -1 | awk '{ print $5 }'`
cat ${SELINUXMNT}/initial_contexts/unlabeled | secon -t
}
#
# Get the default label for a file without a label
#
get_unlabeled_type() {
SELINUXMNT=`grep selinuxfs /proc/self/mountinfo | head -1 | awk '{ print $5 }'`
cat $SELINUXMNT/initial_contexts/file | secon -t
}
exclude_dirs_from_relabelling() {
exclude_from_relabelling=
if [ -e /etc/selinux/fixfiles_exclude_dirs ]
then
while read i
do
# skip blank line and comment
# skip not absolute path
# skip not directory
[ -z "${i}" ] && continue
[[ "${i}" =~ "^[[:blank:]]*#" ]] && continue
[[ ! "${i}" =~ ^/.* ]] && continue
[[ ! -d "${i}" ]] && continue
exclude_from_relabelling="$exclude_from_relabelling -e $i"
logit "skipping the directory $i"
done < /etc/selinux/fixfiles_exclude_dirs
fi
echo "$exclude_from_relabelling"
}
exclude_dirs() {
exclude=
for i in /sys /proc /dev /run /mnt /var/tmp /var/lib/BackupPC /home /tmp /dev; do
[ -e $i ] && exclude="$exclude -e $i";
done
exclude="$exclude `exclude_dirs_from_relabelling`"
echo "$exclude"
}
#
# Set global Variables
#
fullFlag=0
BOOTTIME=""
VERBOSE="-p"
FORCEFLAG=""
DIRS=""
RPMILES=""
LOGFILE=`tty`
if [ $? != 0 ]; then
LOGFILE="/dev/null"
fi
LOGGER=/usr/sbin/logger
SETFILES=/sbin/setfiles
RESTORECON=/sbin/restorecon
FILESYSTEMSRW=`get_rw_labeled_mounts`
FILESYSTEMSRO=`get_ro_labeled_mounts`
FILESYSTEMS="$FILESYSTEMSRW $FILESYSTEMSRO"
SELINUXTYPE="targeted"
if [ -e /etc/selinux/config ]; then
. /etc/selinux/config
FC=/etc/selinux/${SELINUXTYPE}/contexts/files/file_contexts
else
FC=/etc/security/selinux/file_contexts
fi
#
# Log to either syslog or a LOGFILE
#
logit () {
if [ -n $LOGFILE ]; then
echo $1 >> $LOGFILE
fi
}
#
# Find files newer then the passed in date and fix the label
#
newer() {
DATE=$1
shift
for m in `echo $FILESYSTEMSRW`; do
find $m -mount -newermt $DATE -print0 2>/dev/null | ${RESTORECON} ${FORCEFLAG} ${VERBOSE} $* -i -0 -f -
done;
}
#
# Compare PREVious File Context to currently installed File Context and
# run restorecon on all files affected by the differences.
#
diff_filecontext() {
if [ -f ${PREFC} -a -x /usr/bin/diff ]; then
TEMPFILE=`mktemp ${FC}.XXXXXXXXXX`
test -z "$TEMPFILE" && exit
PREFCTEMPFILE=`mktemp ${PREFC}.XXXXXXXXXX`
sed -r -e 's,:s0, ,g' $PREFC | sort -u > ${PREFCTEMPFILE}
sed -r -e 's,:s0, ,g' $FC | sort -u | \
/usr/bin/diff -b ${PREFCTEMPFILE} - | \
grep '^[<>]'|cut -c3-| grep ^/ | \
egrep -v '(^/home|^/root|^/tmp|^/dev)' |\
sed -r -e 's,[[:blank:]].*,,g' \
-e 's|\(([/[:alnum:]]+)\)\?|{\1,}|g' \
-e 's|([/[:alnum:]])\?|{\1,}|g' \
-e 's|\?.*|*|g' \
-e 's|\{.*|*|g' \
-e 's|\(.*|*|g' \
-e 's|\[.*|*|g' \
-e 's|\.\*.*|*|g' \
-e 's|\.\+.*|*|g' | \
# These two sorts need to be separate commands \
sort -u | \
sort -d | \
while read pattern ; \
do if ! echo "$pattern" | grep -q -f ${TEMPFILE} 2>/dev/null; then \
echo "$pattern"; \
case "$pattern" in *"*") \
echo "$pattern" | sed -e 's,^,^,' -e 's,\*$,,g' >> ${TEMPFILE};;
esac; \
fi; \
done | \
${RESTORECON} ${VERBOSE} -i -f - -R $* `exclude_dirs`; \
rm -f ${TEMPFILE} ${PREFCTEMPFILE}
fi
}
#
# Log all Read Only file systems
#
LogReadOnly() {
if [ ! -z "$FILESYSTEMSRO" ]; then
logit "Warning: Skipping the following R/O filesystems:"
logit "$FILESYSTEMSRO"
fi
}
rpmlist() {
rpm -q --qf '[%{FILESTATES} %{FILENAMES}\n]' "$1" | grep '^0 ' | cut -f2- -d ' '
[ ${PIPESTATUS[0]} != 0 ] && echo "$1 not found" >/dev/stderr
}
#
# restore
# if called with -n will only check file context
#
restore () {
OPTION=$1
shift
if [ ! -z "$PREFC" ]; then
diff_filecontext $*
exit $?
fi
if [ ! -z "$BOOTTIME" ]; then
newer $BOOTTIME $*
exit $?
fi
[ -x /usr/sbin/genhomedircon ] && /usr/sbin/genhomedircon
LogReadOnly
#
exclude_dirs="`exclude_dirs_from_relabelling $OPTION`"
if [ -n "${exclude_dirs}" ]
then
TEMPFCFILE=`mktemp ${FC}.XXXXXXXXXX`
test -z "$TEMPFCFILE" && exit
/bin/cp -p ${FC} ${TEMPFCFILE} &>/dev/null || exit
tmpdirs=${tempdirs//-e/}
for p in ${tmpdirs}
do
p="${p%/}"
p1="${p}(/.*)? -- <<none>>"
echo "${p1}" >> $TEMPFCFILE
logit "skipping the directory ${p}"
done
FC=$TEMPFCFILE
fi
if [ ! -z "$RPMFILES" ]; then
for i in `echo "$RPMFILES" | sed 's/,/ /g'`; do
rpmlist $i | ${RESTORECON} $exclude_dirs ${FORCEFLAG} ${VERBOSE} $* -R -i -f - 2>&1 | cat >> $LOGFILE
done
exit $?
fi
if [ ! -z "$FILEPATH" ]; then
${RESTORECON} $exclude_dirs ${FORCEFLAG} ${VERBOSE} -R $* $FILEPATH 2>&1 | cat >> $LOGFILE
return
fi
if [ -n "${FILESYSTEMSRW}" ]; then
echo "${OPTION}ing `echo ${FILESYSTEMSRW}`"
${SETFILES} ${VERBOSE} $exclude_dirs -q ${FORCEFLAG} $* ${FC} ${FILESYSTEMSRW} 2>&1 | cat >> $LOGFILE
else
echo >&2 "fixfiles: No suitable file systems found"
fi
if [ ${OPTION} != "Relabel" ]; then
return
fi
echo "Cleaning up labels on /tmp"
rm -rf /tmp/gconfd-* /tmp/pulse-* /tmp/orbit-* $TEMPFCFILE
UNDEFINED=`get_undefined_type` || exit $?
UNLABELED=`get_unlabeled_type` || exit $?
find /tmp \( -context "*:${UNLABELED}*" -o -context "*:${UNDEFINED}*" \) \( -type s -o -type p \) -delete
find /tmp \( -context "*:${UNLABELED}*" -o -context "*:${UNDEFINED}*" \) -exec chcon --reference /tmp {} \;
find /var/tmp \( -context "*:${UNLABELED}*" -o -context "*:${UNDEFINED}*" \) -exec chcon --reference /var/tmp {} \;
find /var/run \( -context "*:${UNLABELED}*" -o -context "*:${UNDEFINED}*" \) -exec chcon --reference /var/run {} \;
[ ! -e /var/lib/debug ] || find /var/lib/debug \( -context "*:${UNLABELED}*" -o -context "*:${UNDEFINED}*" \) -exec chcon --reference /lib {} \;
exit 0
}
fullrelabel() {
logit "Cleaning out /tmp"
find /tmp/ -mindepth 1 -delete
LogReadOnly
restore Relabel
}
relabel() {
if [ ! -z "$RPMFILES" ]; then
restore Relabel
fi
if [ $fullFlag == 1 ]; then
fullrelabel
fi
echo -n "
Files in the /tmp directory may be labeled incorrectly, this command
can remove all files in /tmp. If you choose to remove files from /tmp,
a reboot will be required after completion.
Do you wish to clean out the /tmp directory [N]? "
read answer
if [ "$answer" = y -o "$answer" = Y ]; then
fullrelabel
else
restore Relabel
fi
}
process() {
#
# Make sure they specified one of the three valid commands
#
case "$1" in
restore) restore Relabel;;
check) VERBOSE="-v"; restore Check -n;;
verify) restore Verify -n -o -;;
relabel) relabel;;
onboot)
> /.autorelabel
[ -z "$FORCEFLAG" ] || echo -n "$FORCEFLAG " >> /.autorelabel
[ -z "$BOOTTIME" ] || echo -N $BOOTTIME >> /.autorelabel
# Force full relabel if / does not have a label on it
getfilecon / > /dev/null 2>&1 || echo -F >/.autorelabel
echo "System will relabel on next boot"
;;
*)
usage
exit 1
esac
}
usage() {
echo $"""
Usage: $0 [-v] [-F] [-N time ] [-l logfile ] { check | restore| [-f] relabel | verify } [[dir/file] ... ]
or
Usage: $0 [-v] [-F] -R rpmpackage[,rpmpackage...] [-l logfile ] { check | restore | verify }
or
Usage: $0 [-v] [-F] -C PREVIOUS_FILECONTEXT { check | restore | verify }
or
Usage: $0 [-F] [-B] onboot
"""
}
if [ $# = 0 ]; then
usage
exit 1
fi
# See how we were called.
while getopts "N:BC:FfR:l:v" i; do
case "$i" in
B)
BOOTTIME=`/bin/who -b | awk '{print $3}'`
;;
f)
fullFlag=1
;;
v)
VERBOSE="-v"
;;
R)
RPMFILES=$OPTARG
;;
l)
LOGFILE=$OPTARG
;;
C)
PREFC=$OPTARG
;;
F)
FORCEFLAG="-F"
;;
N)
BOOTTIME=$OPTARG
;;
*)
usage
exit 1
esac
done
# Move out processed options from arguments
shift $(( OPTIND - 1 ))
# Check for the command
command=$1
if [ -z $command ]; then
usage
fi
# Move out command from arguments
shift
#
# check if they specified both DIRS and RPMFILES
#
if [ ! -z "$RPMFILES" ]; then
process $command
if [ $# -gt 0 ]; then
usage
fi
else
if [ -z "$1" ]; then
process $command
else
while [ -n "$1" ]; do
FILEPATH=$1
process $command
shift
done
fi
fi
exit $?
|