diff options
| -rwxr-xr-x | openvpn-resolv-conf | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/openvpn-resolv-conf b/openvpn-resolv-conf new file mode 100755 index 0000000..48d83ca --- /dev/null +++ b/openvpn-resolv-conf @@ -0,0 +1,47 @@ +#!/bin/bash +# +# Parses DHCP options from OpenVPN to update resolv.conf. +# To use set as 'up' and 'down' script in your openvpn config: +# up /etc/openvpn/update-resolv-conf +# down /etc/openvpn/update-resolv-conf +# +# credit: +# * Thomas Hood <jdthood@yahoo.co.uk> +# * Chris Hanson +# * chlauber@bnc.ch +# +# Licensed under the GNU GPL +# + +[ -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\n" + 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 |