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libvirt_recover_xattrs: Allow fixing multiple PATHs

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Loop for multiple PATH arguments to support shell pattern expansion.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Peter Krempa 2020-12-02 10:55:01 +01:00
parent ea6bc0557d
commit a6e4c87299
1 changed files with 29 additions and 22 deletions
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51
tools/libvirt_recover_xattrs.sh
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@ -7,7 +7,7 @@ function die {
function show_help {
cat << EOF
Usage: ${0##*/} -[hqnu] [PATH]
Usage: ${0##*/} -[hqnu] [PATH ...]
Clear out any XATTRs set by libvirt on all files that have them.
The idea is to reset refcounting, should it break.
@ -25,7 +25,6 @@ EOF
QUIET=0
DRY_RUN=0
UNSAFE=0
DIR="/"
# So far only qemu and lxc drivers use security driver.
URI=("qemu:///system"
@ -57,15 +56,6 @@ while getopts hqnu opt; do
esac
done
shift $((OPTIND - 1))
if [ $# -gt 0 ]; then
DIR=$1
else
if [ ${UNSAFE} -eq 1 ]; then
die "Unsafe mode (-u) requires explicit 'PATH' argument"
fi
fi
case $(uname -s) in
Linux)
XATTR_PREFIX="trusted.libvirt.security"
@ -95,17 +85,34 @@ for i in "dac" "selinux"; do
XATTRS+=("$XATTR_PREFIX.$i" "$XATTR_PREFIX.ref_$i" "$XATTR_PREFIX.timestamp_$i")
done
fix_xattrs() {
local DIR="$1"
for i in $(getfattr -R -d -m ${XATTR_PREFIX} --absolute-names ${DIR} 2>/dev/null | grep "^# file:" | cut -d':' -f 2); do
if [ ${DRY_RUN} -ne 0 ]; then
getfattr -d -m $p --absolute-names $i | grep -v "^# file:"
continue
fi
for i in $(getfattr -R -d -m ${XATTR_PREFIX} --absolute-names ${DIR} 2>/dev/null | grep "^# file:" | cut -d':' -f 2); do
if [ ${DRY_RUN} -ne 0 ]; then
getfattr -d -m $p --absolute-names $i | grep -v "^# file:"
continue
fi
if [ ${QUIET} -eq 0 ]; then
echo "Fixing $i";
fi
for x in ${XATTRS[*]}; do
setfattr -x $x $i
if [ ${QUIET} -eq 0 ]; then
echo "Fixing $i";
fi
for x in ${XATTRS[*]}; do
setfattr -x $x $i
done
done
done
}
shift $((OPTIND - 1))
if [ $# -gt 0 ]; then
while [ $# -gt 0 ]; do
fix_xattrs "$1"
shift $((OPTIND - 1))
done
else
if [ ${UNSAFE} -eq 1 ]; then
die "Unsafe mode (-u) requires explicit 'PATH' argument"
fi
fix_xattrs "/"
fi