OpenElec/OSMC/etc ConnMan + OpenVPN client

openvpn_client_instructions_connman

# Resolve by hack ConnMan + OpenVPN Client inability to add/del default route
# TODO: Get this packaged for upstream somewhere OpenVPN, ConnMan, OSMC, *Elec
#       perhaps with systemd after openvpn goes up.

### Example output of openvpn client:
# Fri Jun 14 00:04:39 2019 /sbin/ip route add 0.0.0.0/0 via 192.168.xxx.1
# RTNETLINK answers: File exists
# Fri Jun 14 00:04:39 2019 ERROR: Linux route add command failed: external program exited with error status: 2


# Add these two lines to your /etc/openvpn/client.conf
script-security 2
route-up /etc/openvpn/route_up.sh

cat <<EOF > /etc/openvpn/route_up.sh
#!/bin/bash
gw=$(ifconfig | grep -A1 tun | tail -n1 | awk '{print $6}')
echo `date` /sbin/ip route change default via $gw dev tun0
/sbin/ip route change default via $gw dev tun0
EOF