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#!/sbin/openrc-run
extra_commands="checkconfig"
instance_name=${RC_SVCNAME#*.}
[ "$instance_name" != "openvpn" ] \
&& name="OpenVPN ($instance_name)" \
|| name="OpenVPN"
# Upper case variables are for backward compatibility with Alpine < v3.8.
: ${cfgdir:=${VPNDIR:-"/etc/openvpn"}}
: ${cfgfile:="$cfgdir/$instance_name.conf"}
: ${detect_client:="${DETECT_CLIENT:-yes}"}
: ${up_script:="$cfgdir/up.sh"}
: ${down_script:="$cfgdir/down.sh"}
: ${peer_dns:=${PEER_DNS:-"yes"}}
pidfile="/run/$RC_SVCNAME.pid"
command="/usr/sbin/openvpn"
command_args="
--daemon
--config $cfgfile
--writepid $pidfile
--setenv RC_SVCNAME $RC_SVCNAME
--setenv PEER_DNS $peer_dns"
required_dirs="$cfgdir"
required_files="$cfgfile"
depend() {
need localmount net
use dns
after bootmisc
}
checkconfig() {
# Note: This is not just a check; we need to detect the mode both for
# "start" and "checkconfig" commands, that's why it's here.
if [ -z "$client_mode" ] && yesno "$detect_client"; then
cfgfile_has_option 'remote' \
&& client_mode=yes \
|| client_mode=no
fi
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 $?
fi
if yesno "$client_mode"; then
local f; for f in "$up_script" "$down_script"; do
[ -r "$f" ] || { eerror "'$f' is not readable"; return 1; }
done
# Warn about setting scripts as we override them
if cfgfile_has_option "(up|down)"; then
ewarn "WARNING: You have defined your own up/down scripts"
ewarn "As you're running as a client, we now force Alpine specific"
ewarn "scripts to be run for up and down events."
ewarn "These scripts will call /etc/openvpn/$RC_SVCNAME-{up,down}.sh"
ewarn "where you can put your own code."
fi
# Warn about the inability to change ip/route/dns information when
# dropping privs
if cfgfile_has_option "user"; then
ewarn "WARNING: You are dropping root privileges!"
ewarn "As such openvpn may not be able to change ip, routing"
ewarn "or DNS configuration."
fi
fi
}
start_pre() {
checkconfig || return 1
if yesno "$client_mode"; then
command_args="$command_args
--up-delay
--up-restart
--down-pre
--script-security 2
--up $up_script
--down $down_script"
start_inactive="yes"
else
# Run as openvpn unless otherwise specified.
cfgfile_has_option "user" || command_args="$command_args --user openvpn"
cfgfile_has_option "group" || command_args="$command_args --group openvpn"
fi
# If the config file does not specify the cd option, we do.
# But if we specify it, we override the config option which we do not want.
if cfgfile_has_option "cd"; then
command_args="$command_args --cd $cfgdir"
fi
}
start() {
# If we are re-called by the up.sh script, then we don't actually want
# to start OpenVPN. We do this so we can "start" ourselves from
# inactive (from the up.sh script) which then triggers other
# services to start which depend on us.
yesno "$IN_BACKGROUND" && return 0
default_start
}
stop() {
# If we are re-called by the down.sh script, then we don't actually
# want to stop OpenVPN.
if yesno "$IN_BACKGROUND"; then
mark_service_inactive "$RC_SVCNAME"
return 0
fi
default_stop
}
cfgfile_has_option() {
grep -Eq "^\s*$1\s" "$cfgfile"
}
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