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contrib: dracut: don't require essentials to be under the same encroot

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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13291
This commit is contained in:
наб 2022-04-04 23:39:18 +02:00 committed by Brian Behlendorf
parent eaf1e06045
commit 30c6dce7f7
2 changed files with 38 additions and 30 deletions
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1
contrib/dracut/90zfs/mount-zfs.sh.in
View File

@ -93,6 +93,7 @@ if ! zpool get -Ho name "${ZFS_POOL}" > /dev/null 2>&1; then
fi
# Load keys if we can or if we need to
# TODO: for_relevant_root_children like in zfs-load-key.sh.in
if [ "$(zpool get -Ho value feature@encryption "${ZFS_POOL}")" = 'active' ]; then
# if the root dataset has encryption enabled
ENCRYPTIONROOT="$(zfs get -Ho value encryptionroot "${ZFS_DATASET}")"

67
contrib/dracut/90zfs/zfs-load-key.sh.in
View File

@ -22,36 +22,43 @@ fi
[ "$(zpool get -Ho value feature@encryption "${BOOTFS%%/*}")" = 'active' ] || return 0
ENCRYPTIONROOT="$(zfs get -Ho value encryptionroot "${BOOTFS}")"
[ "${ENCRYPTIONROOT}" = "-" ] && return 0
_load_key_cb() {
dataset="$1"
[ "$(zfs get -Ho value keystatus "${ENCRYPTIONROOT}")" = "unavailable" ] || return 0
ENCRYPTIONROOT="$(zfs get -Ho value encryptionroot "${dataset}")"
[ "${ENCRYPTIONROOT}" = "-" ] && return 0
KEYLOCATION="$(zfs get -H -o value keylocation "${ENCRYPTIONROOT}")"
case "${KEYLOCATION%%://*}" in
prompt)
for _ in 1 2 3; do
systemd-ask-password --no-tty "Encrypted ZFS password for ${BOOTFS}" | zfs load-key "${ENCRYPTIONROOT}" && break
done
;;
http*)
systemctl start network-online.target
zfs load-key "${ENCRYPTIONROOT}"
;;
file)
KEYFILE="${KEYLOCATION#file://}"
[ -r "${KEYFILE}" ] || udevadm settle
[ -r "${KEYFILE}" ] || {
info "ZFS: Waiting for key ${KEYFILE} for ${ENCRYPTIONROOT}..."
for _ in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do
sleep 0.5s
[ -r "${KEYFILE}" ] && break
[ "$(zfs get -Ho value keystatus "${ENCRYPTIONROOT}")" = "unavailable" ] || return 0
KEYLOCATION="$(zfs get -Ho value keylocation "${ENCRYPTIONROOT}")"
case "${KEYLOCATION%%://*}" in
prompt)
for _ in 1 2 3; do
systemd-ask-password --no-tty "Encrypted ZFS password for ${dataset}" | zfs load-key "${ENCRYPTIONROOT}" && break
done
}
[ -r "${KEYFILE}" ] || warn "ZFS: Key ${KEYFILE} for ${ENCRYPTIONROOT} hasn't appeared. Trying anyway."
zfs load-key "${ENCRYPTIONROOT}"
;;
*)
zfs load-key "${ENCRYPTIONROOT}"
;;
esac
;;
http*)
systemctl start network-online.target
zfs load-key "${ENCRYPTIONROOT}"
;;
file)
KEYFILE="${KEYLOCATION#file://}"
[ -r "${KEYFILE}" ] || udevadm settle
[ -r "${KEYFILE}" ] || {
info "ZFS: Waiting for key ${KEYFILE} for ${ENCRYPTIONROOT}..."
for _ in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do
sleep 0.5s
[ -r "${KEYFILE}" ] && break
done
}
[ -r "${KEYFILE}" ] || warn "ZFS: Key ${KEYFILE} for ${ENCRYPTIONROOT} hasn't appeared. Trying anyway."
zfs load-key "${ENCRYPTIONROOT}"
;;
*)
zfs load-key "${ENCRYPTIONROOT}"
;;
esac
}
_load_key_cb "$BOOTFS"
for_relevant_root_children "$BOOTFS" _load_key_cb