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|
#!/bin/bash
#
# #RCDDIR#/cryptfs: mount/umount encrypted partitions
#
set -o pipefail
cryptTab="$(grep -v "^\s*\(#\|\$\)" #ETCDIR#/crypttab | sed "s/^\s*//")"
fsTab="$(grep -v "^\s*\(#\|\$\)" #ETCDIR#/fstab | sed "s/^\s*//")"
cryptedFss="$(echo "${cryptTab}" | awk '{print "#MAPDIR#/"$1}')"
neededKeyFss="$(
for fs in $(echo "${fsTab}" | awk '{print $2}' | grep "^/")
do
if echo "${cryptTab}" | grep -q "^\S\+\s\+\S\+\s\+${fs}\(/\|\s\)"
then
echo "${fs}"
fi
done
)"
innermostFss="$(
for fs in ${cryptedFss}
do
echo "${fsTab}" | \
awk '{print $2}' | \
grep "^$(
echo "${fsTab}" | \
grep "^${fs}\s" | \
awk '{print $2}'
)/"
done
)"
case $1 in
start)
for neededKeyFs in ${neededKeyFss}
do
if ! mountpoint -q "${neededKeyFs}"
then
if echo "${fsTab}" | grep -q "^\(ssh\|ftp\)fs#\S*\s\+${neededKeyFs}\s"
then
maxWait=120
while [ ${maxWait} -gt 0 ] && ! /sbin/ip -o addr show scope global | grep -q '\S'
do
>&2 echo -ne "."
sleep 1
maxWait=$[${maxWait}-1]
done
host="$(
echo "${fsTab}" | \
grep -m1 "^\(ssh\|ftp\)fs#\S*\s\+${neededKeyFs}\s" | \
sed "s>^\(ssh\|ftp\)fs#\([^ :@]*@\)\?\([^ :@]\+\)\(:\S\+\)\?\s\+${neededKeyFs}\s.*$>\3>"
)"
while [ ${maxWait} -gt 0 ] && ! /bin/ping -c1 ${host} &> /dev/null
do
>&2 echo -ne ","
sleep 1
maxWait=$[${maxWait}-1]
done
fi
mount ${neededKeyFs} || exit $?
fi
done
for ((cryptDeviceNum=0; cryptDeviceNum<$(echo "${cryptTab}" | wc -l); cryptDeviceNum++))
do
zeile="$(echo "${cryptTab}" | head -n$[${cryptDeviceNum}+1] | tail -n1)"
name="$(echo "${zeile}" | awk '{print $1}')"
device="$(echo "${zeile}" | awk '{print $2}')"
if [[ "${device}" == "UUID="* ]]
then
device="#UUIDDIR#/${device#UUID=}"
fi
keyfile="$(echo "${zeile}" | awk '{print $3}')"
if [ ! -b "#MAPDIR#/${name}" ]
then
cryptsetup luksOpen "${device}" "${name}" --key-file="${keyfile}" || exit $?
fi
done
for cryptedFs in ${cryptedFss}
do
if ! findmnt --source "${cryptedFs}" > /dev/null
then
e2fsck "${cryptedFs}"
mount "${cryptedFs}" || exit $?
fi
done
for innermostFs in ${innermostFss}
do
if ! mountpoint -q "${innermostFs}"
then
mount "${innermostFs}" || exit $?
fi
done
;;
stop)
for innermostFs in ${innermostFss}
do
if mountpoint -q "${innermostFs}"
then
umount "${innermostFs}" || exit $?
fi
done
for cryptedFs in ${cryptedFss}
do
if findmnt --source "${cryptedFs}" > /dev/null
then
umount "${cryptedFs}" || exit $?
fi
done
for name in $(echo "${cryptTab}" | awk '{print $1}')
do
if [ -b "#MAPDIR#/${name}" ]
then
cryptsetup luksClose "${name}" || exit $?
fi
done
for neededKeyFs in ${neededKeyFss}
do
if [ ! "${neededKeyFs}" == "/" ] && mountpoint -q "${neededKeyFs}"
then
umount ${neededKeyFs} || exit $?
fi
done
;;
restart)
$0 stop
sleep 2
$0 start
;;
*)
echo "usage: $0 [start|stop|restart]"
;;
esac
# End of file
|
