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- #!/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/update-resolv-conf
- # down /etc/openvpn/update-resolv-conf
- #
- # 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.
- #
- # Adjusted for openSUSE and its 'netconfig' component
- # using dirty tricks by multiple1902.
- # Omitted the 'DOMAIN' part.
- #
- # 05/2006 chlauber@bnc.ch
- # 01/2012 multiple1902@gmail.com
- #
- # 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'
- NETCONFIG="/sbin/netconfig"
- CONFIGFILE="/var/run/netconfig/NetworkManager.netconfig"
- 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
- fi
- done
- cp $CONFIGFILE{,.bak}
- grep -v DNSSERVERS $CONFIGFILE.bak > $CONFIGFILE
- echo "DNSSERVERS='$IF_DNS_NAMESERVERS'" >> $CONFIGFILE
- $NETCONFIG update -f
- ;;
- down)
- cp $CONFIGFILE{.bak,}
- $NETCONFIG update -f
- ;;
- esac
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