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#!/bin/bash
#
# Install to hooks/<HOOKS_VER>/add-brick/post
#
# Add an SELinux file context for each brick using the glusterd_brick_t type.
# This ensures that the brick is relabeled correctly on an SELinux restart or
# restore. Subsequently, run a restore on the brick path to set the selinux
# labels.
#
###
PROGNAME="Sselinux"
OPTSPEC="volname:,version:,gd-workdir:,volume-op:"
VOL=
parse_args () {
ARGS=$(getopt -o '' -l ${OPTSPEC} -n ${PROGNAME} -- "$@")
eval set -- "${ARGS}"
while true; do
case ${1} in
--volname)
shift
VOL=${1}
;;
--gd-workdir)
shift
GLUSTERD_WORKDIR=$1
;;
--version)
shift
;;
--volume-op)
shift
;;
*)
shift
break
;;
esac
shift
done
}
set_brick_labels()
{
local volname="${1}"
local fctx
local list=()
fctx="$(semanage fcontext --list -C)"
# wait for new brick path to be updated under
# ${GLUSTERD_WORKDIR}/vols/${volname}/bricks/
sleep 5
# grab the path for each local brick
brickpath="${GLUSTERD_WORKDIR}/vols/${volname}/bricks/"
brickdirs=$(
find "${brickpath}" -type f -exec grep '^path=' {} \; | \
cut -d= -f 2 | \
sort -u
)
# create a list of bricks for which custom SELinux
# label doesn't exist
for b in ${brickdirs}; do
pattern="${b}(/.*)?"
echo "${fctx}" | grep "^${pattern}\s" >/dev/null
if [[ $? -ne 0 ]]; then
list+=("${pattern}")
fi
done
# Add a file context for each brick path in the list and associate with the
# glusterd_brick_t SELinux type.
for p in ${list[@]}
do
semanage fcontext --add -t glusterd_brick_t -r s0 "${p}"
done
# Set the labels for which SELinux label was added above
for b in ${brickdirs}
do
echo "${list[@]}" | grep "${b}" >/dev/null
if [[ $? -eq 0 ]]; then
restorecon -R "${b}"
fi
done
}
SELINUX_STATE=$(which getenforce && getenforce)
[ "${SELINUX_STATE}" = 'Disabled' ] && exit 0
parse_args "$@"
[ -z "${VOL}" ] && exit 1
set_brick_labels "${VOL}"
exit 0
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