Execute script when disconnecting from openvpn / delay openvpn disconnect
Hello,
I would like to auto execute a script when the openvpn connection goes down to automatically unmount the sshfs share that is accessible only through the vpn.
So I have put in my config in /etc/openvpn/myconf.ovpn:
Code:
script-security 2
up /etc/openvpn/maemo-update-resolvconf
plugin /opt/openvpn/lib/openvpn/openvpn-down-root.so "script_type=down /etc/openvpn/maemo-update-resolvconf"
And in /etc/openvpn/maemo-update-resolvconf:
Code:
#!/bin/bash
#
# Parses DHCP options from openvpn to update resolv.conf
# To use set as 'up' and 'down' script in your openvpn *.conf:
# up /etc/openvpn/maemo-update-resolvconf
# plugin /opt/openvpn/lib/openvpn/openvpn-down-root.so "script_type=down /etc/openvpn/maemo-update-resolvconf"
# Customized version for Maemo (lacks resolvconf)
# 02.08.2009 andrea@borgia.bo.it
#
# Used snippets of resolvconf script by Thomas Hood <jdthood@yahoo.co.uk>
# and Chris Hanson
# Licensed under the GNU GPL. See /usr/share/common-licenses/GPL.
# 05/2006 chlauber@bnc.ch
#
# Example envs set from openvpn:
# foreign_option_1='dhcp-option DNS 193.43.27.132'
# foreign_option_2='dhcp-option DNS 193.43.27.133'
# foreign_option_3='dhcp-option DOMAIN be.bnc.ch'
#
case $script_type in
up)
for optionname in ${!foreign_option_*} ; do
option="${!optionname}"
echo $option
part1=$(echo "$option" | cut -d " " -f 1)
if [ "$part1" == "dhcp-option" ] ; then
part2=$(echo "$option" | cut -d " " -f 2)
part3=$(echo "$option" | cut -d " " -f 3)
if [ "$part2" == "DNS" ] ; then
IF_DNS_NAMESERVERS="$IF_DNS_NAMESERVERS $part3"
fi
if [ "$part2" == "DOMAIN" ] ; then
IF_DNS_SEARCH="$part3"
fi
fi
done
R=""
if [ "$IF_DNS_SEARCH" ] ; then
R="${R}search $IF_DNS_SEARCH\n"
fi
for NS in $IF_DNS_NAMESERVERS ; do
R="${R}nameserver $NS\n"
done
if [ ! -f /etc/resolv.conf.prevpn ] ; then
mv /etc/resolv.conf /etc/resolv.conf.prevpn
fi
echo -e "$R" > /etc/resolv.conf
;;
down)
if [ -f /etc/resolv.conf.prevpn ] ; then
mv /etc/resolv.conf.prevpn /etc/resolv.conf
fi
/etc/openvpn/myscript
;;
esac
My script to unmount the sshfs share works great when triggered manually, but when triggered automatically by the maemo-update-resolvconf, it doesn't have the time to finish executing.
The script:
Code:
LOCALDIR=/home/user/MyDocs/Lan/Server
REMOTEDIR=/home/user/
USER=user
SERVER=myip
VAR="`mount | grep $LOCALDIR`"
if [ -n "$VAR" ]
then
PING="`ping -q -c 1 $SERVER > /dev/null 2>&1`"
if [ $? -eq 0 ]
then
echo "Unmount SSHFS Server"
umount $LOCALDIR/
echo "Off"
else
run-standalone.sh dbus-send --type=method_call --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.freedesktop.Notifications.SystemNoteDialog string:"SSHFS: $SERVER doesn't respond to ping. Please verify the connection before unmounting." uint32: string:
fi
fi
So when executed automatically, I always get the message "SSHFS: $SERVER doesn't respond to ping. Please verify the connection before unmounting.", but if I execute the script with an active openvpn connection, the share unmounts without any issue. I therefore think that the openvpn connection disconnects too quickly and the script doesn't have the time to finish executing.
MY QUESTION: How to delay the openvpn disconnect so that the script finishes executing? (I have tried a "sleep 10" in maemo-update-resolvconf after "/etc/openvpn/myscript" but it doesn't help.
Thank you. |
