diff options
Diffstat (limited to 'main/openvpn/openvpn.up')
-rw-r--r-- | main/openvpn/openvpn.up | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/main/openvpn/openvpn.up b/main/openvpn/openvpn.up new file mode 100644 index 000000000..4a8868702 --- /dev/null +++ b/main/openvpn/openvpn.up @@ -0,0 +1,82 @@ +#!/bin/sh +# Copyright (c) 2006-2007 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# Contributed by Roy Marples (uberlord@gentoo.org) + +# Setup our resolv.conf +# Vitally important that we use the domain entry in resolv.conf so we +# can setup the nameservers are for the domain ONLY in resolvconf if +# we're using a decent dns cache/forwarder like dnsmasq and NOT nscd/libc. +# nscd/libc users will get the VPN nameservers before their other ones +# and will use the first one that responds - maybe the LAN ones? +# non resolvconf users just the the VPN resolv.conf + +# FIXME:- if we have >1 domain, then we have to use search :/ +# We need to add a flag to resolvconf to say +# "these nameservers should only be used for the listed search domains +# if other global nameservers are present on other interfaces" +# This however, will break compatibility with Debians resolvconf +# A possible workaround would be to just list multiple domain lines +# and try and let resolvconf handle it + +if [ "${PEER_DNS}" != "no" ]; then + NS= + DOMAIN= + SEARCH= + i=1 + while true ; do + eval opt=\$foreign_option_${i} + [ -z "${opt}" ] && break + if [ "${opt}" != "${opt#dhcp-option DOMAIN *}" ] ; then + if [ -z "${DOMAIN}" ] ; then + DOMAIN="${opt#dhcp-option DOMAIN *}" + else + SEARCH="${SEARCH}${SEARCH:+ }${opt#dhcp-option DOMAIN *}" + fi + elif [ "${opt}" != "${opt#dhcp-option DNS *}" ] ; then + NS="${NS}nameserver ${opt#dhcp-option DNS *}\n" + fi + i=$((${i} + 1)) + done + + if [ -n "${NS}" ] ; then + DNS="# Generated by openvpn for interface ${dev}\n" + if [ -n "${SEARCH}" ] ; then + DNS="${DNS}search ${DOMAIN} ${SEARCH}\n" + elif [ -n "${DOMAIN}" ]; then + DNS="${DNS}domain ${DOMAIN}\n" + fi + DNS="${DNS}${NS}" + if [ -x /sbin/resolvconf ] ; then + printf "${DNS}" | /sbin/resolvconf -a "${dev}" + else + # Preserve the existing resolv.conf + if [ -e /etc/resolv.conf ] ; then + cp /etc/resolv.conf /etc/resolv.conf-"${dev}".sv + fi + printf "${DNS}" > /etc/resolv.conf + chmod 644 /etc/resolv.conf + fi + fi +fi + +# Below section is Gentoo specific +# Quick summary - our init scripts are re-entrant and set the SVCNAME env var +# as we could have >1 openvpn service + +if [ -n "${SVCNAME}" ]; then + # If we have a service specific script, run this now + if [ -x /etc/openvpn/"${SVCNAME}"-up.sh ] ; then + /etc/openvpn/"${SVCNAME}"-up.sh "$@" + fi + + # Re-enter the init script to start any dependant services + if ! /etc/init.d/"${SVCNAME}" --quiet status ; then + export IN_BACKGROUND=true + /etc/init.d/${SVCNAME} --quiet start + fi +fi + +exit 0 + +# vim: ts=4 : |