The previous script was missing a required function:
Apr 18 13:45:29 hostname nm-dispatcher[28472]:
/etc/NetworkManager/dispatcher.d/fwknop-server: 16:
/etc/NetworkManager/dispatcher.d/fwknop-server: read_sysf: not found
Attached is the fixed script.
Francois
--
https://fmarier.org/
#!/bin/sh
# Copyright (c) 2019 Thomas Koch <linrunner at gmx.net>, Francois Marier
<franc...@debian.org> and others.
# This software is licensed under the GPL v2 or later.
read_sysf () { # read and echo contents of sysfile
# return 1 and echo default if read fails
# $1: sysfile, $2: default; rc: 0=ok/1=error
if ! cat "$1" 2> /dev/null; then
printf "%s" "$2"
return 1
else
return 0
fi
}
save_iface_type () { # save interface type -- $1: interface; $2: type
# rc: 0=saved/1=error
[ -d $NETD/$1 ] && { printf '%s\n' "$2" > $RUNDIR/${1}.itype; } 2> /dev/null
return $?
}
get_iface_type () { # get saved interface type -- $1: interface
# rc: 0=saved state found/1=not found
# retval: $itype
local rc
itype=$(read_sysf $RUNDIR/${1}.itype); rc=$?
rm -f $RUNDIR/${1}.itype
return $rc
}
# Get args
iface="$1"
action="$2"
itype=""
# Quit for invalid interfaces
[ -n "$iface" ] && [ "$iface" != "none" ] || exit 0
# Quit for actions other than "up" and "down"
[ "$action" = "up" ] || [ "$action" = "down" ] || exit 0
# Quit for virtual interfaces (up action)
if [ "$action" = "up" ] && readlink "$NETD/$iface" | grep -q '/virtual/'; then
# save type for down action where $NETD/$iface won't be there anymore
save_iface_type $iface virtual
exit 0
fi
# Get saved interface type (down action)
if [ "$action" = "down" ]; then
get_iface_type $iface
# quit for virtual interfaces
if [ "$itype" = "virtual" ]; then
exit 0
fi
fi
case $action in
up)
/bin/systemctl start fwknop-server.service
;;
down)
/bin/systemctl stop fwknop-server.service
;;
esac
exit 0
