55 lines
1.3 KiB
Bash
Executable File
55 lines
1.3 KiB
Bash
Executable File
#!/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.
|
|
#
|
|
# 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'
|
|
|
|
[ -x /sbin/resolvconf ] || exit 0
|
|
|
|
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
|
|
"
|
|
fi
|
|
for NS in $IF_DNS_NAMESERVERS ; do
|
|
R="${R}nameserver $NS
|
|
"
|
|
done
|
|
echo -n "$R" | /sbin/resolvconf -a "${dev}.inet"
|
|
;;
|
|
down)
|
|
/sbin/resolvconf -d "${dev}.inet"
|
|
;;
|
|
esac
|
|
|