54 lines
1.2 KiB
Plaintext
54 lines
1.2 KiB
Plaintext
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#!/bin/sh
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exec 2>&1
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ie_url='static.innovenergy.ch'
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ie_data_dir='/data/innovenergy'
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ovpn_bin_dir='/opt/innovenergy/openvpn'
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ovpn_data_dir=${ie_data_dir}'/openvpn'
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ovpn_status_file='/var/volatile/ovpnstatus'
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# somehow the new (static) openvpn binary lost the ability to dns lookup, so we have to do this:
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ie_ip=$(nslookup "$ie_url" | grep -F -A 1 "$ie_url" | grep -o -E '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+')
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# certificate query
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query="https://${ie_url}/get_cert?machine_serial="
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serial=$(cat /data/venus/serial-number)
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delay=1
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# create data dirs if necessary
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[ -d ${ie_data_dir} ] || mkdir ${ie_data_dir}
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[ -d ${ovpn_data_dir} ] || mkdir ${ovpn_data_dir}
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# download certificates from server if necessary
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while [ ! -f ${ovpn_data_dir}/client-certificate ]
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do
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curl ${query}${serial} | tar -C ${ovpn_data_dir} -xv
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sleep ${delay}
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delay=$(( $delay * 2 ))
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done
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# run ovpn
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exe="${ovpn_bin_dir}/openvpn
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--client
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--nobind
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--resolv-retry infinite
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--ca ${ovpn_data_dir}/ca-certificate
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--cert ${ovpn_data_dir}/client-certificate
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--key ${ovpn_data_dir}/client-key
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--status ${ovpn_status_file} 5
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--remote ${ie_ip}
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--port 7002
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--proto udp
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--dev innovenergy
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--dev-type tun
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--auth SHA256
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--cipher AES-256-CBC
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--verb 3
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--keepalive 10 120
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--persist-key
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--persist-tun"
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exec ${exe}
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