viirb: script to fully configure
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Nico Schottelius
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1 changed files with 199 additions and 0 deletions
199
viirb-configure-fully-after-upgrade.sh
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199
viirb-configure-fully-after-upgrade.sh
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#!/bin/sh
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# 2020-06-13, Nico Schottelius
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# See https://ungleich.ch/u/products/viirb-ipv6-box/
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if [ $# -ne 2 ]; then
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echo "$0 viirb-ip-address viirb-id"
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echo " viirb-ip-address: where to find the viirb"
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echo " viirb-id: number in decimal format"
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exit 1
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fi
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set -x
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viirb_ip=$1; shift
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id=$1; shift
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hex_id=$(printf "%0.2x\n" "$id")
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viirb_hostname=viirb${id}
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prefix_base=2a0a:e5c1:3
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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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private_key=$(wg genkey)
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public_key=$(echo $private_key | wg pubkey)
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vpn_endpoint_host=vpn-2a0ae5c1300.ungleich.ch
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vpn_endpoint_pubkey=ft68G2RID7gZ6PXjFCSCOdJ9yspRg+tUw0YrNK9cTxE=
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cat <<EOF | ssh -t "root@${viirb_ip}"
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set -x
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# Setup lan to also retrieve an ip address via dhcp
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# This stays in the final setup
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uci set network.lan.proto='dhcp'
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uci delete network.lan.ipaddr
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uci delete network.lan.netmask
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# This is temporary - keeping it until the config process is through
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uci set network.lanv4temp=interface
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uci set network.lanv4temp.proto='static'
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uci set network.lanv4temp.ifname='br-lan'
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uci set network.lanv4temp.ipaddr='192.168.61.1'
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uci set network.lanv4temp.netmask='255.255.255.0'
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uci commit network
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/etc/init.d/network restart
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# ensure internet is up and running
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sleep 5
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ping -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 wireguard
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opkg install luci-app-wireguard
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# The IPv6 lan configuration
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uci set network.lanv6=interface
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uci set network.lanv6.proto='static'
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uci set network.lanv6.ip6addr='${my_lan_ip}/64'
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uci set network.lanv6.ifname='br-lan'
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# wifi ip address
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uci set network.wifi=interface
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uci set network.wifi.proto='static'
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uci set network.wifi.ip6addr='${my_wifi_ip}/64'
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# Wifi configuration
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uci set wireless.radio0=wifi-device
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uci set wireless.radio0.type='mac80211'
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uci set wireless.radio0.hwmode='11g'
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uci set wireless.radio0.path='platform/10300000.wmac'
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uci set wireless.radio0.htmode='HT40'
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uci set wireless.radio0.country='CH'
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uci set wireless.radio0.channel='6'
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# Ensure it is not disabled
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uci delete wireless.radio0.disabled
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uci set wireless.default_radio0=wifi-iface
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uci set wireless.default_radio0.device='radio0'
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uci set wireless.default_radio0.mode='ap'
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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 ${viirb_hostname}'
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uci set wireless.default_radio0.network='wifi'
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# Wifi / Router advertisements
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uci set dhcp.wifi=dhcp
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uci set dhcp.wifi.interface='wifi'
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uci set dhcp.wifi.ra='server'
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uci set dhcp.wifi.dynamicdhcp='0'
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# LAN / Router advertisements / DHCP
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# DHCP: we are not authoratative
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uci delete dhcp.@dnsmasq[0].authoritative
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uci delete dhcp.lan.dhcpv6
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uci delete dhcp.lan.start
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uci delete dhcp.lan.limit
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uci delete dhcp.lan.leasetime
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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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uci set dhcp.lan=dhcp
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uci set dhcp.lan.interface='lanv6'
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uci set dhcp.lan.ra='server'
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uci set dhcp.lan.dynamicdhcp='0'
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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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dhcp.@dnsmasq[0].localuse='0'
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# DNS upstream over VPN gives DNS64
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uci delete dhcp.@dnsmasq[0].server
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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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# 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='${vpn_endpoint_host}'
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uci set network.@wireguard_wg0[0].endpoint_port='51820'
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uci set network.@wireguard_wg0[0].route_allowed_ips='1'
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uci set system.@system[0].hostname="${viirb_hostname}"
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uci commit
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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[0].network='lan lanv6 wifi'
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uci set firewall.@zone[1].network='wg0'
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uci commit firewall
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# Reboot
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reboot
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EOF
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echo "Wireguard public key: ${public_key}"
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echo ${public_key} > ${viirb_hostname}.public_key
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