The service is now based on yunohost settings, allowing to update the setup though the web interface with yunohost app setting commands
This commit is contained in:
Julien VAUBOURG
@@ -9,79 +9,200 @@
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# Description: Start VPN client.
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### END INIT INFO
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# Functions
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## State functions
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has_nativeip6() {
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ip -6 r | grep -q default\ via
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ip -6 route | grep -q default\ via
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}
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has_hotspot_app() {
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yunohost app list -f hotspot --json | grep -q '"installed": true'
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}
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is_ip6addr_set() {
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yunohost app list -f hotspot --json | grep -q '"installed": true'\
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|| ip a s dev tun0 2> /dev/null | grep -q <TPL:IP6_ADDR>/128
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ip address show dev tun0 2> /dev/null | grep -q "${ynh_ip6_addr}/128"
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}
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is_serverip6route_set() {
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ip -6 r | grep -q <TPL:SERVER_IP6>/
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server_ip6=$1
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ip -6 route | grep -q "${server_ip6}/"
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}
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is_openvpn_running() {
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# service openvpn status seems to be a joke
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ip l sh dev tun0 &> /dev/null
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ip link show dev tun0 &> /dev/null
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}
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is_running() {
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((has_nativeip6 && is_serverip6route_set) || ! has_nativeip6) && is_openvpn_running
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((has_nativeip6 && is_serverip6route_set "${new_server_ip6}") || ! has_nativeip6)\
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&& ((! has_hotspot_app && is_ip6addr_set) || has_hotspot_app)\
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&& is_openvpn_running
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}
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gw6=$(ip -6 r | grep default\ via | awk '{ print $3 }')
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## Setters
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set_ip6addr() {
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ip address add "${ynh_ip6_addr}/128" dev tun0
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}
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set_serverip6route() {
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server_ip6=$1
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ip6_gw=$2
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wired_device=$3
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ip route add "${server_ip6}/128" via "${ip6_gw}" dev "${wired_device}"
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}
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start_openvpn() {
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ip6_gw=$1
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server_ip6=$2
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proto=udp
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[ ! -z "${ip6_gw}" -a ! -z "${server_ip6}" ] && proto=udp6
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cp /etc/openvpn/client.conf{.tpl,}
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sed "s|<TPL:SERVER_NAME>|${ynh_server_name}|g" -i /etc/openvpn/client.conf
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sed "s|<TPL:PROTO>|${proto}|" -i /etc/openvpn/client.conf
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sed 's|^<TPL:UDP_COMMENT>||' -i /etc/openvpn/client.conf
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service openvpn start client
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}
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## Unsetters
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unset_ip6addr() {
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ip address delete "${ynh_ip6_addr}/128" dev tun0
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}
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unset_serverip6route() {
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server_ip6=$1
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ip6_gw=$2
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wired_device=$3
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ip route delete "${server_ip6}/128" via "${ip6_gw}" dev "${wired_device}"
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}
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stop_openvpn() {
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service openvpn stop
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}
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## Tools
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moulinette_get() {
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var=$1
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value=$(yunohost app setting vpnclient "${var}")
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if [[ "${value}" =~ "An instance is already running" ]]; then
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echo "${value}" >&2
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exit 1
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fi
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echo "${value}"
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}
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moulinette_set() {
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var=$1
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value=$2
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msg=$(yunohost app setting vpnclient "${var}" -v "${value}")
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if [ ! $? -eq 0 ]; then
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echo "${msg}" >&2
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exit 1
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fi
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}
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# Variables
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echo -n "Retrieving Yunohost settings... "
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ynh_server_name=$(moulinette_get server_name)
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ynh_ip6_addr=$(moulinette_get ip6_addr)
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old_ip6_gw=$(moulinette_get ip6_gw)
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old_wired_device=$(moulinette_get wired_device)
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old_server_ip6=$(moulinette_get server_ip6)
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new_ip6_gw=$(ip -6 route | grep default\ via | awk '{ print $3 }')
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new_wired_device=$(ip route | awk '/default via/ { print $NF; }')
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new_server_ip6=$(host "${ynh_server_name}" | awk '/IPv6/ { print $NF; }')
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if [ -z "${new_server_ip6}" ]; then
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new_server_ip6=$(host "${ynh_server_name}" 80.67.188.188 | awk '/IPv6/ { print $NF; }')
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fi
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echo "OK"
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# Script
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case "$1" in
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start)
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if is_running; then
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echo "Already correctly set"
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echo "Already started"
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else
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echo "Starting..."
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# Run openvpn
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if ! is_openvpn_running; then
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echo "Run openvpn"
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proto=udp
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[ ! -z "${gw6}" ] && proto=udp6
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sed "s|<TPL:PROTO>|${proto}|" /etc/openvpn/client.conf.tpl > /etc/openvpn/client.conf
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sed 's|^<TPL:UDP_COMMENT>||' -i /etc/openvpn/client.conf
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service openvpn start client
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start_openvpn "${new_ip6_gw}" "${new_server_ip6}"
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i=0
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false || while [ $? -ne 0 ]; do
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(( i++ ))
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[ $i -gt 15 ] && exit 1
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sleep 1
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ip l sh dev tun0 &> /dev/null
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done
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sleep 2
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ip link show dev tun0 &> /dev/null
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done && sleep 2
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fi
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if has_nativeip6 && ! is_serverip6route_set; then
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# Check old state of the server ipv6 route
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if [ ! -z "${old_server_ip6}" -a ! -z "${new_ip6_gw}" -a ! -z "${old_wired_device}"\
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-a \( "${new_server_ip6}" != "${old_server_ip6}" -o "${new_ip6_gw}" != "${old_ip6_gw}"\
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-o "${new_wired_device}" != "${old_wired_device}" \) ]\
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&& is_serverip6route_set "${old_server_ip6}" "${old_ip6_gw}" "${old_wired_device}"; then
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unset_serverip6route "${old_server_ip6}" "${old_ip6_gw}" "${old_wired_device}"
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fi
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# Set the new server ipv6 route
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if has_nativeip6 && ! is_serverip6route_set "${new_server_ip6}"; then
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echo "Set IPv6 server route"
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ip r a <TPL:SERVER_IP6>/128 via ${gw6} dev <TPL:WIRED_DEVICE>
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set_serverip6route "${new_server_ip6}" "${new_ip6_gw}" "${new_wired_device}"
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fi
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if ! is_ip6addr_set; then
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# Set the ipv6 address
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if ! has_hotspot_app && ! is_ip6addr_set; then
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echo "Set IPv6 address"
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ip a a <TPL:IP6_ADDR>/128 dev tun0
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set_ip6addr
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fi
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fi
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moulinette_set server_ip6 "${new_server_ip6}"
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moulinette_set ip6_gw "${new_ip6_gw}"
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moulinette_set wired_device "${new_wired_device}"
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;;
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stop)
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if is_ip6addr_set; then
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echo "Stopping..."
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if ! has_hotspot_app && is_ip6addr_set; then
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echo "Unset IPv6 address"
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# Not useful if hotspot is installed
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ip a d <TPL:IP6_ADDR>/128 dev tun0 2> /dev/null
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unset_ip6addr
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fi
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if is_serverip6route_set; then
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if is_serverip6route_set "${old_server_ip6}"; then
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echo "Unset IPv6 server route"
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ip r d <TPL:SERVER_IP6>/128 via ${gw6} dev <TPL:WIRED_DEVICE>
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unset_serverip6route "${old_server_ip6}" "${old_ip6_gw}" "${old_wired_device}"
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fi
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if is_openvpn_running; then
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echo "Stop openvpn"
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service openvpn stop
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stop_openvpn
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fi
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;;
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restart)
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@@ -91,15 +212,19 @@ case "$1" in
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status)
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exitcode=0
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if is_ip6addr_set; then
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echo "IPv6 address is correctly set"
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if ! has_hotspot_app; then
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if is_ip6addr_set; then
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echo "IPv6 address is correctly set"
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else
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echo "IPv6 address is NOT set"
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exitcode=1
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fi
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else
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echo "IPv6 address is NOT set"
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exitcode=1
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echo "Hotspot app detected"
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fi
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if has_nativeip6; then
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if is_serverip6route_set; then
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if is_serverip6route_set "${new_server_ip6}"; then
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echo "IPv6 server route is correctly set"
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else
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echo "IPv6 server route is NOT set"
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