diff options
Diffstat (limited to 'distro/pkg/deb/knot-resolver.preinst')
| -rw-r--r-- | distro/pkg/deb/knot-resolver.preinst | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/distro/pkg/deb/knot-resolver.preinst b/distro/pkg/deb/knot-resolver.preinst new file mode 100644 index 0000000..1f8f589 --- /dev/null +++ b/distro/pkg/deb/knot-resolver.preinst @@ -0,0 +1,26 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-3.0-or-later +set -e + +# upgrade-4-to-5 +if [ -f /lib/systemd/system/kresd.socket ] ; then + export UPG_DIR=/var/lib/knot-resolver/.upgrade-4-to-5 + mkdir -p ${UPG_DIR} + touch ${UPG_DIR}/.unfinished + + for sock in kresd.socket kresd-tls.socket ; do + if systemctl is-enabled ${sock} 2>/dev/null | grep -qv masked ; then + systemctl show ${sock} -p Listen > ${UPG_DIR}/${sock} + case "$(systemctl show ${sock} -p BindIPv6Only)" in + *ipv6-only) + touch ${UPG_DIR}/${sock}.v6only + ;; + *default) + if cat /proc/sys/net/ipv6/bindv6only | grep -q 1 ; then + touch ${UPG_DIR}/${sock}.v6only + fi + ;; + esac + fi + done +fi |