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#!/bin/bash
#
# Install to hooks/<HOOKS_VER>/delete/pre
#
# Delete the file context associated with the brick path on volume deletion. The
# associated file context was added during volume creation.
#
# We do not explicitly relabel the brick, as this could be time consuming and
# unnecessary.
#
###
PROGNAME="Sselinux"
OPTSPEC="volname:"
VOL=
function parse_args () {
ARGS=$(getopt -o '' -l ${OPTSPEC} -n ${PROGNAME} -- "$@")
eval set -- "${ARGS}"
while true; do
case ${1} in
--volname)
shift
VOL=${1}
;;
*)
shift
break
;;
esac
shift
done
}
function delete_brick_fcontext()
{
local volname=$1
local fctx
local list=()
fctx="$(semanage fcontext --list -C)"
# grab the path for each local brick
brickpath="/var/lib/glusterd/vols/${volname}/bricks/"
brickdirs=$(find "${brickpath}" -type f -exec grep '^path=' {} \; | \
cut -d= -f 2 | sort -u)
for b in ${brickdirs}
do
pattern="${b}(/.*)?"
echo "${fctx}" | grep "^${pattern}\s" >/dev/null
if [[ $? -eq 0 ]]; then
list+=("${pattern}")
fi
done
if [[ ${#list[@]} -gt 0 ]]; then
printf 'fcontext --delete %s\n' "${list[@]}" | semanage -i -
fi
for b in ${brickdirs}
do
restorecon -R "${b}"
done
}
SELINUX_STATE=$(which getenforce && getenforce)
[ "${SELINUX_STATE}" = 'Disabled' ] && exit 0
parse_args "$@"
[ -z "${VOL}" ] && exit 1
delete_brick_fcontext "${VOL}"
# failure to delete the fcontext is not fatal
exit 0
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