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#!/sbin/runscript
# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
VPNDIR=${VPNDIR:-/etc/openvpn}
VPN=${SVCNAME#*.}
if [ -n "${VPN}" ] && [ ${SVCNAME} != "openvpn" ]; then
VPNPID="/var/run/openvpn.${VPN}.pid"
else
VPNPID="/var/run/openvpn.pid"
fi
VPNCONF="${VPNDIR}/${VPN}.conf"
depend() {
need net
use dns
}
checkconfig() {
# Linux has good dynamic tun/tap creation
if [ $(uname -s) = "Linux" ] ; then
if [ ! -e /dev/net/tun ]; then
if ! modprobe tun ; then
eerror "TUN/TAP support is not available" \
"in this kernel"
return 1
fi
fi
if [ -h /dev/net/tun ] && [ -c /dev/misc/net/tun ]; then
ebegin "Detected broken /dev/net/tun symlink, fixing..."
rm -f /dev/net/tun
ln -s /dev/misc/net/tun /dev/net/tun
eend $?
fi
return 0
fi
# Other OS's don't, so we rely on a pre-configured interface
# per vpn instance
local ifname=$(sed -n -e 's/[[:space:]]*dev[[:space:]][[:space:]]*\([^[:space:]]*\).*/\1/p' "${VPNCONF}")
if [ -z ${ifname} ] ; then
eerror "You need to specify the interface that this openvpn" \
"instance should use" \
"by using the dev option in ${VPNCONF}"
return 1
fi
if ! ifconfig "${ifname}" >/dev/null 2>/dev/null ; then
# Try and create it
echo > /dev/"${ifname}" >/dev/null
fi
if ! ifconfig "${ifname}" >/dev/null 2>/dev/null ; then
eerror "${VPNCONF} requires interface ${ifname}" \
"but that does not exist"
return 1
fi
}
start() {
# If we are re-called by the openvpn gentoo-up.sh script
# then we don't actually want to start openvpn
[ "${IN_BACKGROUND}" = "true" ] && return 0
ebegin "Starting ${SVCNAME}"
checkconfig || return 1
local args="" client=false
# If the config file does not specify the cd option, we do
# But if we specify it, we override the config option which we do not want
if ! grep -q "^[ \t]*cd[ \t].*" "${VPNCONF}" ; then
args="${args} --cd ${VPNDIR}"
fi
# We mark the service as inactive and then start it.
# When we get an authenticated packet from the peer then we run our script
# which configures our DNS if any and marks us as up.
if grep -q "^[ \t]*remote[ \t].*" "${VPNCONF}" ; then
client=true
args="${args} --nobind --up-delay --up-restart"
args="${args} --up /etc/openvpn/up.sh"
args="${args} --down-pre --down /etc/openvpn/down.sh"
# Warn about setting scripts as we override them
if grep -Eq "^[ \t]*(up|down)[ \t].*" "${VPNCONF}" ; then
ewarn "WARNING: You have defined your own up/down scripts"
ewarn "As you're running as a client, we now force Gentoo specific"
ewarn "scripts to be run for up and down events."
ewarn "These scripts will call /etc/openvpn/${SVCNAME}-{up,down}.sh"
ewarn "where you can put your own code."
fi
# Warn about the inability to change ip/route/dns information when
# dropping privs
if grep -q "^[ \t]*user[ \t].*" "${VPNCONF}" ; then
ewarn "WARNING: You are dropping root privileges!"
ewarn "As such openvpn may not be able to change ip, routing"
ewarn "or DNS configuration."
fi
else
# So we're a server. Run as openvpn unless otherwise specified
grep -q "^[ \t]*user[ \t].*" "${VPNCONF}" || args="${args} --user openvpn"
grep -q "^[ \t]*group[ \t].*" "${VPNCONF}" || args="${args} --group openvpn"
fi
${client} && mark_service_inactive "${SVCNAME}"
start-stop-daemon --start --exec /usr/sbin/openvpn --pidfile "${VPNPID}" \
-- --config "${VPNCONF}" --writepid "${VPNPID}" --daemon ${args}
eend $? "Check your logs to see why startup failed"
}
stop() {
# If we are re-called by the openvpn gentoo-down.sh script
# then we don't actually want to stop openvpn
if [ "${IN_BACKGROUND}" = "true" ] ; then
mark_service_inactive "${SVCNAME}"
return 0
fi
ebegin "Stopping ${SVCNAME}"
start-stop-daemon --stop --quiet \
--exec /usr/sbin/openvpn --pidfile "${VPNPID}"
eend $?
}
# vim: set ts=4 :
|
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