56 lines
2.3 KiB
Bash
Executable File
56 lines
2.3 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# only run this on systemd systems, we handle the decrypt in mount-zfs.sh in the mount hook otherwise
|
|
[[ -e /bin/systemctl ]] || return 0
|
|
|
|
# This script only gets executed on systemd systems, see mount-zfs.sh for non-systemd systems
|
|
|
|
# import the libs now that we know the pool imported
|
|
[ -f /lib/dracut-lib.sh ] && dracutlib=/lib/dracut-lib.sh
|
|
[ -f /usr/lib/dracut/modules.d/99base/dracut-lib.sh ] && dracutlib=/usr/lib/dracut/modules.d/99base/dracut-lib.sh
|
|
. "$dracutlib"
|
|
|
|
# load the kernel command line vars
|
|
[ -z "$root" ] && root=$(getarg root=)
|
|
# If root is not ZFS= or zfs: or rootfstype is not zfs then we are not supposed to handle it.
|
|
[ "${root##zfs:}" = "${root}" -a "${root##ZFS=}" = "${root}" -a "$rootfstype" != "zfs" ] && exit 0
|
|
|
|
# There is a race between the zpool import and the pre-mount hooks, so we wait for a pool to be imported
|
|
while true; do
|
|
zpool list -H | grep -q -v '^$' && break
|
|
[[ $(systemctl is-failed zfs-import-cache.service) == 'failed' ]] && exit 1
|
|
[[ $(systemctl is-failed zfs-import-scan.service) == 'failed' ]] && exit 1
|
|
sleep 0.1s
|
|
done
|
|
|
|
# run this after import as zfs-import-cache/scan service is confirmed good
|
|
if [[ "${root}" = "zfs:AUTO" ]] ; then
|
|
root=$(zpool list -H -o bootfs | awk '$1 != "-" {print; exit}')
|
|
else
|
|
root="${root##zfs:}"
|
|
root="${root##ZFS=}"
|
|
fi
|
|
|
|
# if pool encryption is active and the zfs command understands '-o encryption'
|
|
if [[ $(zpool list -H -o feature@encryption $(echo "${root}" | awk -F\/ '{print $1}')) == 'active' ]]; then
|
|
# check if root dataset has encryption enabled
|
|
if $(zfs list -H -o encryption "${root}" | grep -q -v off); then
|
|
# figure out where the root dataset has its key, the keylocation should not be none
|
|
while true; do
|
|
if [[ $(zfs list -H -o keylocation "${root}") == 'none' ]]; then
|
|
root=$(echo -n "${root}" | awk 'BEGIN{FS=OFS="/"}{NF--; print}')
|
|
[[ "${root}" == '' ]] && exit 1
|
|
else
|
|
break
|
|
fi
|
|
done
|
|
# decrypt them
|
|
TRY_COUNT=5
|
|
while [ $TRY_COUNT != 0 ]; do
|
|
zfs load-key "$root" <<< $(systemd-ask-password "Encrypted ZFS password for ${root}: ")
|
|
[[ $? == 0 ]] && break
|
|
((TRY_COUNT-=1))
|
|
done
|
|
fi
|
|
fi
|