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contrib: dracut: inline single-use import_pool, move single-use ask_for_password
Also don't set ROOTFS_MOUNTED; the final mention was removed in dracut 011 from July 2011 Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #13291
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Brian Behlendorf
parent
dac0b0785a
commit
eaf1e06045
@ -20,6 +20,42 @@ fi
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info "ZFS: No sysroot.mount exists or zfs-generator did not extend it."
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info "ZFS: Mounting root with the traditional mount-zfs.sh instead."
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# ask_for_password tries prompt cmd
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#
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# Wraps around plymouth ask-for-password and adds fallback to tty password ask
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# if plymouth is not present.
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ask_for_password() {
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tries="$1"
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prompt="$2"
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cmd="$3"
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{
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flock -s 9
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# Prompt for password with plymouth, if installed and running.
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if plymouth --ping 2>/dev/null; then
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plymouth ask-for-password \
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--prompt "$prompt" --number-of-tries="$tries" | \
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eval "$cmd"
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ret=$?
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else
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i=1
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while [ "$i" -le "$tries" ]; do
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printf "%s [%i/%i]:" "$prompt" "$i" "$tries" >&2
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eval "$cmd" && ret=0 && break
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ret=$?
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i=$((i+1))
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printf '\n' >&2
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done
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unset i
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fi
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} 9>/.console_lock
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[ "$ret" -ne 0 ] && echo "Wrong password" >&2
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return "$ret"
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}
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# Delay until all required block devices are present.
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modprobe zfs 2>/dev/null
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udevadm settle
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@ -45,31 +81,39 @@ fi
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ZFS_DATASET="${ZFS_DATASET:-${root}}"
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ZFS_POOL="${ZFS_DATASET%%/*}"
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if import_pool "${ZFS_POOL}" ; then
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# Load keys if we can or if we need to
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if [ "$(zpool list -H -o feature@encryption "${ZFS_POOL}")" = 'active' ]; then
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# if the root dataset has encryption enabled
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ENCRYPTIONROOT="$(zfs get -H -o value encryptionroot "${ZFS_DATASET}")"
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if ! [ "${ENCRYPTIONROOT}" = "-" ]; then
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KEYSTATUS="$(zfs get -H -o value keystatus "${ENCRYPTIONROOT}")"
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# if the key needs to be loaded
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if [ "$KEYSTATUS" = "unavailable" ]; then
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# decrypt them
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ask_for_password \
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5 \
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"Encrypted ZFS password for ${ENCRYPTIONROOT}: " \
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"zfs load-key '${ENCRYPTIONROOT}'"
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fi
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if ! zpool get -Ho name "${ZFS_POOL}" > /dev/null 2>&1; then
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info "ZFS: Importing pool ${ZFS_POOL}..."
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# shellcheck disable=SC2086
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if ! zpool import -N ${ZPOOL_IMPORT_OPTS} "${ZFS_POOL}"; then
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warn "ZFS: Unable to import pool ${ZFS_POOL}"
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rootok=0
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return 1
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fi
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fi
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# Load keys if we can or if we need to
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if [ "$(zpool get -Ho value feature@encryption "${ZFS_POOL}")" = 'active' ]; then
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# if the root dataset has encryption enabled
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ENCRYPTIONROOT="$(zfs get -Ho value encryptionroot "${ZFS_DATASET}")"
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if ! [ "${ENCRYPTIONROOT}" = "-" ]; then
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KEYSTATUS="$(zfs get -Ho value keystatus "${ENCRYPTIONROOT}")"
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# if the key needs to be loaded
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if [ "$KEYSTATUS" = "unavailable" ]; then
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# decrypt them
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ask_for_password \
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5 \
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"Encrypted ZFS password for ${ENCRYPTIONROOT}: " \
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"zfs load-key '${ENCRYPTIONROOT}'"
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fi
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fi
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# Let us tell the initrd to run on shutdown.
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# We have a shutdown hook to run
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# because we imported the pool.
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info "ZFS: Mounting dataset ${ZFS_DATASET}..."
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if mount_dataset "${ZFS_DATASET}" ; then
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ROOTFS_MOUNTED=yes
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return 0
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fi
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fi
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rootok=0
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# Let us tell the initrd to run on shutdown.
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# We have a shutdown hook to run
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# because we imported the pool.
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info "ZFS: Mounting dataset ${ZFS_DATASET}..."
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if ! mount_dataset "${ZFS_DATASET}"; then
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rootok=0
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return 1
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fi
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@ -1,4 +1,5 @@
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#!/bin/sh
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# shellcheck disable=SC2034
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command -v getarg >/dev/null || . /lib/dracut-lib.sh || . /usr/lib/dracut/modules.d/99base/dracut-lib.sh
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command -v getargbool >/dev/null || {
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@ -16,34 +17,14 @@ command -v getargbool >/dev/null || {
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}
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}
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OLDIFS="${IFS}"
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NEWLINE="
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"
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TAB=" "
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ZPOOL_IMPORT_OPTS=""
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if getargbool 0 zfs_force -y zfs.force -y zfsforce ; then
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ZPOOL_IMPORT_OPTS=
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if getargbool 0 zfs_force -y zfs.force -y zfsforce; then
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warn "ZFS: Will force-import pools if necessary."
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ZPOOL_IMPORT_OPTS="${ZPOOL_IMPORT_OPTS} -f"
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ZPOOL_IMPORT_OPTS=-f
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fi
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# import_pool POOL
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# imports the given zfs pool if it isn't imported already.
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import_pool() {
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pool="${1}"
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if ! zpool list -H "${pool}" > /dev/null 2>&1; then
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info "ZFS: Importing pool ${pool}..."
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# shellcheck disable=SC2086
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if ! zpool import -N ${ZPOOL_IMPORT_OPTS} "${pool}" ; then
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warn "ZFS: Unable to import pool ${pool}"
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return 1
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fi
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fi
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return 0
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}
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_mount_dataset_cb() {
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# shellcheck disable=SC2154
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mount -o zfsutil -t zfs "${1}" "${NEWROOT}${2}"
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@ -97,41 +78,6 @@ for_relevant_root_children() {
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)
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}
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# ask_for_password tries prompt cmd
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#
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# Wraps around plymouth ask-for-password and adds fallback to tty password ask
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# if plymouth is not present.
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ask_for_password() {
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tries="$1"
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prompt="$2"
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cmd="$3"
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{
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flock -s 9
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# Prompt for password with plymouth, if installed and running.
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if plymouth --ping 2>/dev/null; then
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plymouth ask-for-password \
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--prompt "$prompt" --number-of-tries="$tries" | \
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eval "$cmd"
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ret=$?
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else
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i=1
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while [ "$i" -le "$tries" ]; do
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printf "%s [%i/%i]:" "$prompt" "$i" "$tries" >&2
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eval "$cmd" && ret=0 && break
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ret=$?
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i=$((i+1))
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printf '\n' >&2
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done
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unset i
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fi
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} 9>/.console_lock
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[ "$ret" -ne 0 ] && echo "Wrong password" >&2
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return "$ret"
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}
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# Parse root=, rootfstype=, return them decoded and normalised to zfs:AUTO for auto, plain dset for explicit
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#
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# True if ZFS-on-root, false if we shouldn't
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