195 lines
5.2 KiB
Bash
Executable File
195 lines
5.2 KiB
Bash
Executable File
#!/bin/sh
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# 2020-06-13, Nico Schottelius
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# See https://ungleich.ch/u/products/vigir/
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if [ $# -lt 2 ]; then
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echo "$0 vigir-ip-address vigir-id [wgprivkey]"
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echo " vigir-ip-address: where to find the vigir"
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echo " vigir-id: number in decimal format"
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echo " wgprivkey: if specified, use this private key"
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exit 1
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fi
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set -x
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vigir_ip=$1; shift
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id=$1; shift
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hex_id=$(printf "%0.2x\n" "$id")
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vigir_hostname=vigir${id}
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prefix_base=2a0a:e5c1:5
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my_prefix=${prefix_base}${hex_id}
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my_network=${my_prefix}::/48
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my_wireguard_ip=${my_prefix}::42
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my_lan_ip=${my_prefix}:cafe::42
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my_wifi_ip=${my_prefix}:7ea::42
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# wireguard
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if [ $# -eq 1 ]; then
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private_key=$1; shift
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else
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private_key=$(wg genkey)
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fi
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public_key=$(echo $private_key | wg pubkey)
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vpn_endpoint_host=vpn-2a0ae5c1500.ungleich.ch
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vpn_endpoint_pubkey=oaFiIVV1NjvDcfdtwJqR4F3k2XIC07npNgj0YjIEem4=
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i=0
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found=""
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while [ $i -lt 30 ]; do
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echo "Trying to reach ${vigir_ip} ($i)"
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if ping -c1 ${vigir_ip} >/dev/null; then
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found="yes"
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break
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fi
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i=$((i+1))
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done
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if [ -z "$found" ]; then
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echo "Unable to contact vigir. Exiting"
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exit 1
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fi
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cat <<EOF | ssh -t "root@${vigir_ip}"
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set -x
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# Set IPv6 address on LAN
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uci set network.lan.ip6addr='${my_lan_ip}/64'
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# Do not announce ULA - we have GUA
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uci delete network.globals.ula_prefix
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# Setup Router Advertisements / remove IPv4 dhcp
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uci set dhcp.lan.ra='server'
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# We do stateless by default everywhere
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uci delete dhcp.lan.dhcpv6
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# Fix DNS: make dnsmasq NOT use a resolv.conf
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# so that it only reads from our servers with DNS64 enabled
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uci set dhcp.@dnsmasq[0].noresolv='1'
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# Fix DNS: make the OS use the locally provided DNS servers
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# otherwise the VPN tunnel cannot be established
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uci set dhcp.@dnsmasq[0].localuse='0'
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# DNS upstream over VPN gives DNS64
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uci add_list dhcp.@dnsmasq[0].server='2a0a:e5c0:0:a::a'
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uci add_list dhcp.@dnsmasq[0].server='2a0a:e5c0:2:a::a'
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uci set system.@system[0].hostname="${vigir_hostname}"
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# Wifi configuration
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uci set wireless.radio0=wifi-device
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uci set wireless.radio0.htmode='HT40'
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uci set wireless.radio0.channel='6'
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uci set wireless.radio0.country='CH'
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uci set wireless.default_radio0.encryption='psk2'
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uci set wireless.default_radio0.key='iloveipv6'
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uci set wireless.default_radio0.ssid='IPv6 everywhere ${vigir_hostname}'
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uci set wireless.radio1.country='CH'
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uci set wireless.default_radio1.encryption='psk2'
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uci set wireless.default_radio1.key='iloveipv6'
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uci set wireless.default_radio1.ssid='IPv6 everywhere ${vigir_hostname} 5Ghz'
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# Ensure it is not disabled
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uci delete wireless.radio0.disabled
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uci delete wireless.radio1.disabled
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# Create temporary IPV4 CLIENT on LAN
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# This way we get Internet/upstream from the LAN port
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# Can we do this via IPv6 instead?
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# this breaks if multiple vigir are setup, as we have fake / wrong
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# dhcp server configurations.
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# easy solution: using two different networks...
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uci commit
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ping6 -c5 ungleich.ch || exit 1
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# update the sources
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opkg update
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# install wireguard + gui
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opkg install luci-app-wireguard luci-proto-wireguard
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# VPN / Wireguard
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uci set network.wg0=interface
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uci set network.wg0.proto='wireguard'
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uci set network.wg0.private_key='${private_key}'
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uci set network.wg0.listen_port='51820'
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uci set network.wg0.addresses='${my_wireguard_ip}/64'
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if ! uci get network.@wireguard_wg0[0]; then
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uci add network wireguard_wg0
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fi
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uci set network.@wireguard_wg0[0]=wireguard_wg0
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uci set network.@wireguard_wg0[0].persistent_keepalive='25'
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uci set network.@wireguard_wg0[0].public_key="${vpn_endpoint_pubkey}"
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uci set network.@wireguard_wg0[0].description="IPv6VPN.ch by ungleich"
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uci set network.@wireguard_wg0[0].allowed_ips='::/0'
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uci set network.@wireguard_wg0[0].endpoint_host="${vpn_endpoint_host}"
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uci set network.@wireguard_wg0[0].endpoint_port='51820'
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uci set network.@wireguard_wg0[0].route_allowed_ips='1'
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# Firewall configuration
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if ! uci show firewall | grep "name='Allow-SSH'"; then
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uci add firewall rule
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uci set firewall.@rule[-1].name='Allow-SSH'
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uci set firewall.@rule[-1].src='wan'
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uci set firewall.@rule[-1].dest='lan'
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uci set firewall.@rule[-1].proto='tcp'
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uci set firewall.@rule[-1].dest_port='22'
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uci set firewall.@rule[-1].target='ACCEPT'
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fi
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if ! uci show firewall | grep "name='Allow-HTTPS'"; then
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uci add firewall rule
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uci set firewall.@rule[-1].name='Allow-HTTPS'
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uci set firewall.@rule[-1].src='wan'
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uci set firewall.@rule[-1].dest='lan'
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uci set firewall.@rule[-1].proto='tcp'
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uci set firewall.@rule[-1].dest_port='443'
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uci set firewall.@rule[-1].target='ACCEPT'
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fi
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if ! uci show firewall | grep "name='Allow-HTTP'"; then
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uci add firewall rule
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uci set firewall.@rule[-1].name='Allow-HTTP'
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uci set firewall.@rule[-1].src='wan'
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uci set firewall.@rule[-1].dest='lan'
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uci set firewall.@rule[-1].proto='tcp'
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uci set firewall.@rule[-1].dest_port='80'
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uci set firewall.@rule[-1].target='ACCEPT'
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fi
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# Add interfaces to the right network zone
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uci set firewall.@zone[1].network='wan wan6 wg0'
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uci commit
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reboot
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EOF
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echo "Wireguard public key and id: ${id} ${public_key}"
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echo ${public_key} > ${vigir_hostname}.public_key
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# change to ipv6
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vigir_ip=${my_lan_ip}
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sleep 15
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while ! ping6 -c5 ${vigir_ip}; do
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echo "Waiting for vigir ${id}"
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sleep 2
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done
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echo "Wireguard public key and id: ${id} ${public_key}"
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