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#!/bin/sh
. /usr/share/debconf/confmodule
set -e
restore_old_timeouts()
{
if [ -s /run/open-iscsi/upgrade/restore_old_timeouts ] ; then
sh /run/open-iscsi/upgrade/restore_old_timeouts || :
fi
rm -f /run/open-iscsi/upgrade/restore_old_timeouts
[ ! -d /run/open-iscsi/upgrade ] || rmdir --ignore-fail-on-non-empty /run/open-iscsi/upgrade
[ ! -d /run/open-iscsi ] || rmdir --ignore-fail-on-non-empty /run/open-iscsi
}
case "$1" in
configure)
# We switched over to modules-load.d logic, so we have to take
# care of this in postinst now.
MODULES_FILE=/lib/modules-load.d/open-iscsi.conf
if [ -f /etc/modules-load.d/open-iscsi.conf ] ; then
MODULES_FILE=/etc/modules-load.d/open-iscsi.conf
fi
grep '^[^#]' $MODULES_FILE | while read module args ; do
[ "$module" ] || continue
modprobe $module $args >/dev/null 2>&1 || true
done
# Move old configuration from /etc/ into /etc/iscsi/
# But only if configuration in /etc/iscsi is untouched
# (FIXME: should this be removed? this is ancient and was
# already in Squeeze's postinst - and we don't really need to
# support direct upgrades from Lenny (5) to Stretch (9).)
if [ -f /etc/initiatorname.iscsi ] ; then
if grep -q "^GenerateName=yes" /etc/iscsi/initiatorname.iscsi ; then
mv /etc/initiatorname.iscsi /etc/iscsi/initiatorname.iscsi
chmod 600 /etc/iscsi/initiatorname.iscsi
fi
fi
if dpkg --compare-versions "$2" le-nl "2.0.873+git0.3b4b4500-12" ; then
# Handle the fact that /etc/iscsi/initiatorname.iscsi is no longer
# a conffile of this package but we want to keep it.
if [ -f /etc/iscsi/initiatorname.iscsi.dpkg-backup ] && ! [ -f /etc/iscsi/initiatorname.iscsi ] ; then
mv -f /etc/iscsi/initiatorname.iscsi.dpkg-backup /etc/iscsi/initiatorname.iscsi
fi
fi
# Compatibility symlinks
for file in iscsid iscsi_discovery iscsi-iname iscsistart; do
if [ ! -e /usr/sbin/$file ]; then
ln -s /sbin/$file /usr/sbin/$file
fi
done
# Obsolete: only open-iscsi 1.0, never even shipped with any
# stable Debian release. But postinst up to Jessie still
# created this directory, so keep this until at least Stretch.
if [ -d /var/lib/open-iscsi ]; then
rmdir --ignore-fail-on-non-empty /var/lib/open-iscsi
fi
# generate a unique iSCSI InitiatorName
NAMEFILE=/etc/iscsi/initiatorname.iscsi
if [ ! -e $NAMEFILE ] && [ -z "$2" ] ; then
# Generate a unique InitiatorName and save it
INAME=$(iscsi-iname -p iqn.1993-08.org.debian:01)
if [ -n "$INAME" ] ; then
echo "## DO NOT EDIT OR REMOVE THIS FILE!" > $NAMEFILE
echo "## If you remove this file, the iSCSI daemon will not start." >> $NAMEFILE
echo "## If you change the InitiatorName, existing access control lists" >> $NAMEFILE
echo "## may reject this initiator. The InitiatorName must be unique">> $NAMEFILE
echo "## for each iSCSI initiator. Do NOT duplicate iSCSI InitiatorNames." >> $NAMEFILE
printf "InitiatorName=%s\n" "$INAME" >> $NAMEFILE
chmod 600 $NAMEFILE
else
echo "Error: failed to generate an iSCSI InitiatorName, driver cannot start."
echo
exit 1;
fi
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# Automatically added by dh_systemd_enable/11.1.6ubuntu2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask 'iscsid.service' >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled 'iscsid.service'; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable 'iscsid.service' >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state 'iscsid.service' >/dev/null || true
fi
fi
# End automatically added section
# Automatically added by dh_systemd_enable/11.1.6ubuntu2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask 'iscsid.service' >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled 'iscsid.service'; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable 'iscsid.service' >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state 'iscsid.service' >/dev/null || true
fi
fi
# End automatically added section
# Automatically added by dh_systemd_enable/11.1.6ubuntu2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask 'open-iscsi.service' >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled 'open-iscsi.service'; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable 'open-iscsi.service' >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state 'open-iscsi.service' >/dev/null || true
fi
fi
# End automatically added section
# Automatically added by dh_installdeb/11.1.6ubuntu2
dpkg-maintscript-helper rm_conffile /etc/init.d/umountiscsi.sh 2.0.873+git0.3b4b4500-9 -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/11.1.6ubuntu2
dpkg-maintscript-helper rm_conffile /etc/init/iscsi-network-interface.conf 2.0.873-3ubuntu12~ -- "$@"
# End automatically added section
# Automatically added by dh_installinit/11.1.6ubuntu2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
if [ -x "/etc/init.d/iscsid" ]; then
update-rc.d iscsid defaults >/dev/null || exit 1
fi
fi
# End automatically added section
# Automatically added by dh_installinit/11.1.6ubuntu2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
if [ -x "/etc/init.d/open-iscsi" ]; then
update-rc.d open-iscsi defaults >/dev/null || exit 1
fi
fi
# End automatically added section
if [ "$1" = configure ] ; then
# There already is a check in preinst with a debconf prompt that
# allows the administrator to abort. Don't abort here, because
# leaving the package in a half-configured state is probably worse.
# Just make sure to wait a while to see if recovery happens. If
# not, proceed anyway.
RETRIES=0
while cat /sys/class/iscsi_session/session*/state 2>/dev/null | grep -qv LOGGED_IN ; do
if [ $RETRIES -eq 0 ] ; then
echo "open-iscsi postinst: since the check in preinst some iSCSI sessions have" >&2
echo " failed. -> will wait 30s for automatic recovery" >&2
fi
if [ $RETRIES -gt 30 ]; then
echo "open-iscsi postinst: some sessions are still in failed state -> iscsid" >&2
echo " will be restarted regardless, since that may" >&2
echo " actually help with the session recovery." >&2
break
fi
RETRIES=$((RETRIES + 1))
sleep 1
done
# Before we restart iscsid, we should increase the recovery timeout
# significantly. Thanks to Mike Christie (open-iscsi upstream) for
# the suggestion. But store the old timeouts and restore them
# later.
new_timeout=120
mkdir -m 0700 -p /run/open-iscsi/upgrade
rm -f /run/open-iscsi/upgrade/restore_old_timeouts
trap restore_old_timeouts EXIT
for settingfile in /sys/class/iscsi_session/session*/recovery_tmo ; do
[ -f "${settingfile}" ] || continue
setting="$(cat "$settingfile" 2>/dev/null || :)"
if [ -n "$setting" ] ; then
echo "echo "'"'"${setting}"'"'" > "'"'"${settingfile}"'" 2>/dev/null' >> /run/open-iscsi/upgrade/restore_old_timeouts
fi
if [ ${new_timeout} -gt ${setting} ] ; then
echo ${new_timeout} > "${settingfile}" 2>/dev/null
fi
done
# Just in case something goes wrong:
sync
# We are upgrading from a pre-Stretch version of open-iscsi. There,
# we only had an open-iscsi init script. Since we now have iscsid
# for the daemon (which is and should be restarted on upgrades) and
# open-iscsi for logging in to the targets (which shouldn't be
# touched on upgrades, especially not restarted, because we don't
# want the storage stack to suddenly disappear on package
# installation!), we have to manually take care of this.
#
# Notes:
# - kill iscsid directly, don't use the old stop script, since
# we don't want to sever any connection. Can't use the new
# stop script, because systemd tracks service status. Note
# that services from init scripts have RemainAfterExit=yes, so
# manually killing it is OK with systemd and the open-iscsi
# service will still be considered to be started.
# - use PIDFILE, not killall, since support for namespacing iSCSI
# might come to the kernel soon (maybe 4.2?). Since that will
# require no userspace change, people might run Jessie with a
# backported kernel that supports this, and we REALLY don't
# want to kill iscsid in containers (LXC, nspawn, ...)
#
# For safety, this upgrade path should be kept until at least
# Buster.
if dpkg --compare-versions "$2" le-nl "2.0.873+git0.3b4b4500-9"; then
# We need to query invoke-rc.d here to comply with Debian's
# policy, so we check if the old stop script would have been
# executed.
set +e
invoke-rc.d --query open-iscsi stop
POLICY_RC=$?
set -e
# invoke-rc.d will return 105 if there is no policy-rc.d.
# Also, even if there is a policy-rc.d and that returns 105
# ('undefined behavior'), invoke-rc.d will assume that it may
# in fact execute the action. Therefore, we will treat exit
# code 105 the same as exit code 104 here.
if [ $POLICY_RC -eq 104 ] || [ $POLICY_RC -eq 105 ] ; then
PIDFILE=/var/run/iscsid.pid
if ! start-stop-daemon --oknodo --stop --quiet \
--pidfile "$PIDFILE" \
--name iscsid --signal TERM \
--retry 30 ; then
# Check if it's still running, as error exit by
# start-stop-daemon might not be an actual error.
if [ -s $PIDFILE ] && kill -0 `sed -n 1p $PIDFILE` >/dev/null 2>/dev/null ; then
echo "ERROR: Could not terminate old iscsid on upgrade, your system is most" >&2
echo "likely hung. Don't know what to do, sorry! Aborting." >&2
exit 1
fi
fi
rm -f $PIDFILE
unset PIDFILE
fi
# Note: 3>&- is required because iscsid doesn't close unused
# FDs, but debconf/confmodule will make the fd 3 point to
# the original stdout (and stdout to stderr) to make sure
# no program accidentally issues a command on stdout. On
# sysvinit systems this combination (iscsid not closing
# fds, fd 3 remaining open) will cause dpkg to wait
# forever for the maintscript to finish. (iscsid keeps
# this end of the pipe open even though the maintscript
# is finished, so dpkg will never receive a POLLHUP on
# its end of the pipe, waiting forever.) Closing fd 3
# here is the simplest solution. This issue does not
# occur with other init systems, since they start
# services in a clean environment without any extraneous
# open fds.
invoke-rc.d iscsid start 3>&-
else
if [ -n "$2" ]; then
invoke-rc.d iscsid restart 3>&-
else
invoke-rc.d iscsid start 3>&-
fi
fi
RETRIES=0
while cat /sys/class/iscsi_session/session*/state 2>/dev/null | grep -qv LOGGED_IN ; do
if [ $RETRIES -eq 0 ]; then
echo "open-iscsi postinst: after iscsid restart, waiting for iSCSI sessions" >&2
echo " to recover. This may take a couple of seconds." >&2
fi
if [ $RETRIES -gt ${new_timeout} ]; then
db_reset open-iscsi/upgrade_recovery_error || true
db_input critical open-iscsi/upgrade_recovery_error || true
db_go
break
fi
RETRIES=$((RETRIES + 1))
sleep 1
done
restore_old_timeouts
trap - EXIT
# Don't restart (and therefore stop) open-iscsi, because we don't
# want to logout from targets during a simple upgrade. But also,
# if for some reason there's some misconfigured target in the
# config that couldn't be activated, don't break postinst, so
# ignore the exit code.
# See above for why 3>&- is here. (Technically it's not required
# for postinst to work, but vgchange likes to complain about leaked
# file descriptors, and we don't need to show that message to the
# user.)
invoke-rc.d open-iscsi start 3>&- || true
fi
exit 0
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