== Installing openwrt on the router for the first time ==
Go to the [[https://firmware-selector.openwrt.org/|openwrt firmware selector]]. Select your device. Download the "factory" firmware and install it to your router as described on its openwrt wiki page. (e.g. [[https://openwrt.org/toh/ubiquiti/edgerouter_x_er-x_ka]])

== Generating the funkfeuer firmware image ==
 1. Go to the [[https://firmware-selector.openwrt.org/|openwrt firmware selector]].
 2. Select your device.
 3. Click on "Customize installed packages and/or first boot script".
 4. Add the following packages to the list
{{{
curl mtr iperf3 tcpdump olsrd olsrd-mod-jsoninfo luci-app-olsr ethtool ipip kmod-ipip
}}}
 5.#5 Copy the following script and paste it to "Script to run on first boot (uci-defaults)" on the image builder website
 6. Replace xxx in the first line with your location's name
 7. (optional) change LAN_IP and LAN_NET

The script contains some default values that make configuration easier.

{{{
#openwrt config script for funkfeuer graz
#written by gabor
export FF_HOSTNAME="xxx.graz.funkfeuer.at"
export LAN_IP="192.168.10.1/24"
export LAN_NET="192.168.10.0/24"

#check if already configured. prevents overwriting settings when upgrading openwrt
[ "$(uci -q get system.@system[0].hostname)" = "$FF_HOSTNAME" ] && exit 0

#disable olsrd6 (not used in ffgraz)
/etc/init.d/olsrd6 stop
/etc/init.d/olsrd6 disable

# /etc/config/dhcp
uci del dhcp.@dnsmasq[0].server
uci del dhcp.@dnsmasq[0].address
uci del dhcp.@dnsmasq[0].filterwin2k
uci del dhcp.@dnsmasq[0].nonegcache
uci del dhcp.@dnsmasq[0].nonwildcard
uci del dhcp.@dnsmasq[0].filter_aaaa
uci del dhcp.@dnsmasq[0].filter_a

#set dns resolver to 10.12.0.10
uci add_list dhcp.@dnsmasq[0].server='10.12.0.10'

#enable reverse dns lookup for 10.12.xxx.xxx addresses
uci add_list dhcp.@dnsmasq[0].address='/.12.10.in-addr.arpa/10.12.0.10'
uci set dhcp.@dnsmasq[0].boguspriv='0'

uci del dhcp.free

uci set dhcp.free=dhcp
uci set dhcp.free.interface='free'
uci set dhcp.free.start='10'
uci set dhcp.free.limit='254'
uci set dhcp.free.leasetime='1h'
uci add_list dhcp.free.dhcp_option='6,10.12.0.10'

# /etc/config/firewall
while uci -q delete firewall.@zone[0]; do :; done
while uci -q delete firewall.@forwarding[0]; do :; done
while uci -q delete firewall.@nat[0]; do :; done
while uci -q delete firewall.@rule[0]; do :; done
uci set firewall.cfg01e63d.synflood_protect='1'
uci add firewall zone # =cfg0edc81
uci set firewall.@zone[-1].name='ff'
uci set firewall.@zone[-1].input='DROP'
uci set firewall.@zone[-1].output='ACCEPT'
uci set firewall.@zone[-1].forward='ACCEPT'
uci add_list firewall.@zone[-1].network='ffeth'
uci add_list firewall.@zone[-1].network='ffwifimesh'

uci add firewall zone
uci set firewall.@zone[-1].name='lan'
uci set firewall.@zone[-1].input='ACCEPT'
uci set firewall.@zone[-1].output='ACCEPT'
uci set firewall.@zone[-1].forward='DROP'
uci add_list firewall.@zone[-1].network='lan'

uci add firewall rule # =cfg0f92bd
uci set firewall.@rule[-1].name='ssh'
uci add_list firewall.@rule[-1].proto='tcp'
uci set firewall.@rule[-1].src='ff'
uci set firewall.@rule[-1].dest_port='22'
uci set firewall.@rule[-1].target='ACCEPT'
uci set firewall.@rule[-1].name='ssh ff'

uci add firewall rule # =cfg1092bd
uci set firewall.@rule[-1].name='olsrd'
uci add_list firewall.@rule[-1].proto='udp'
uci set firewall.@rule[-1].src='ff'
uci set firewall.@rule[-1].dest_port='698'
uci set firewall.@rule[-1].target='ACCEPT'
uci set firewall.@rule[-1].name='olsrd ff'

uci add firewall zone # =cfg11dc81
uci set firewall.@zone[-1].name='free'
uci set firewall.@zone[-1].input='DROP'
uci set firewall.@zone[-1].output='ACCEPT'
uci set firewall.@zone[-1].forward='DROP'
uci add_list firewall.@zone[-1].network='free'

uci add firewall forwarding # =cfg13ad58
uci set firewall.@forwarding[-1].src='lan'
uci set firewall.@forwarding[-1].dest='ff'

uci add firewall forwarding # =cfg12ad58
uci set firewall.@forwarding[-1].src='free'
uci set firewall.@forwarding[-1].dest='ff'

uci add firewall nat # =cfg1393c8
uci set firewall.@nat[-1].name='nat free wifi to ff'
uci add_list firewall.@nat[-1].proto='all'
uci set firewall.@nat[-1].src='ff'
uci set firewall.@nat[-1].src_ip='10.14.0.0/24'
uci set firewall.@nat[-1].target='MASQUERADE'

uci add firewall nat # =cfg1393c8
uci set firewall.@nat[-1].name='nat lan to ff'
uci add_list firewall.@nat[-1].proto='all'
uci set firewall.@nat[-1].src='ff'
uci set firewall.@nat[-1].src_ip="$LAN_NET"
uci set firewall.@nat[-1].target='MASQUERADE'

uci add firewall rule # =cfg1492bd
uci set firewall.@rule[-1].name='web'
uci add_list firewall.@rule[-1].proto='tcp'
uci set firewall.@rule[-1].src='ff'
uci set firewall.@rule[-1].dest_port='80'
uci set firewall.@rule[-1].target='ACCEPT'
uci set firewall.@rule[-1].name='web ff'


uci add firewall rule # =cfg1592bd
uci set firewall.@rule[-1].name='ssh free'
uci add_list firewall.@rule[-1].proto='tcp'
uci set firewall.@rule[-1].src='free'
uci set firewall.@rule[-1].dest_port='22'
uci set firewall.@rule[-1].target='ACCEPT'


uci add firewall rule # =cfg1692bd
uci set firewall.@rule[-1].name='icmp ff'
uci add_list firewall.@rule[-1].proto='icmp'
uci set firewall.@rule[-1].src='ff'
uci set firewall.@rule[-1].target='ACCEPT'

uci add firewall rule # =cfg1792bd
uci set firewall.@rule[-1].name='icmp free'
uci add_list firewall.@rule[-1].proto='icmp'
uci set firewall.@rule[-1].src='free'
uci set firewall.@rule[-1].target='ACCEPT'

uci add firewall rule # =cfg0c92bd
uci set firewall.@rule[-1].name='dhcp free'
uci add_list firewall.@rule[-1].proto='udp'
uci set firewall.@rule[-1].src='free'
uci set firewall.@rule[-1].src_port='68'
uci set firewall.@rule[-1].dest_port='67'
uci set firewall.@rule[-1].target='ACCEPT'

# /etc/config/network
uci del network.wan
uci del network.wan6

uci del network.lan.netmask
uci del network.lan.ipaddr
uci add_list network.lan.ipaddr="$LAN_IP"

uci del network.globals.ula_prefix
uci set network.globals.packet_steering='1'

uci add network device # =cfg080f15
uci set network.@device[-1].type='bridge'
uci set network.@device[-1].name='br-free'
uci set network.@device[-1].bridge_empty='1'

uci del network.free
uci set network.free=interface
uci set network.free.device='br-free'
uci set network.free.proto='static'
uci add_list network.free.ipaddr='10.14.0.1/24'

# /etc/config/wireless
i=0
while uci -q get "wireless.radio$i"
do
 uci set wireless.wifinetfree$i=wifi-iface
 uci set wireless.wifinetfree$i.device=radio$i
 uci set wireless.wifinetfree$i.mode='ap'
 uci set wireless.wifinetfree$i.ssid='Free WiFi - graz.funkfeuer.at'
 uci set wireless.wifinetfree$i.encryption='none'
 uci set wireless.wifinetfree$i.network='free'
 uci set wireless.wifinetfree$i.disabled='1'
 i=$(( $i + 1 ))
done

# /etc/config/system
uci del system.ntp.enabled
uci del system.ntp.enable_server
uci set system.cfg01e48a.hostname=$FF_HOSTNAME
uci set system.cfg01e48a.zonename='Europe/Vienna'
uci set system.cfg01e48a.timezone='CET-1CEST,M3.5.0,M10.5.0/3'
uci set system.cfg01e48a.log_proto='udp'
uci set system.cfg01e48a.conloglevel='8'
uci set system.cfg01e48a.cronloglevel='5'
# /etc/config/wireless

while uci -q delete olsrd.@Interface[0]; do :; done

uci set olsrd.@LoadPlugin[-1].ignore='0'
uci set olsrd.@LoadPlugin[-1].library='olsrd_jsoninfo'

while uci -q delete olsrd.@InterfaceDefaults[0]; do :; done
uci add olsrd InterfaceDefaults
uci set olsrd.@InterfaceDefaults[-1].Mode='ether'
uci set olsrd.@InterfaceDefaults[-1].Ip4Broadcast='255.255.255.255'

}}} 

 8.#8 Click on "Request Build" and wait for the build to complete.
 9. Download the newly built custom sysupgrade image
 10. Log in to your router using the web interface (http://192.168.1.1)
 11. Go to "System->Backup/Flash Firmware"
 12. Click on "Flash image" and select your newly downloaded sysupgrade image.
 13. Untick the box "Keep settings and retain the current configuration"
 14. Click "Continue"

== Accessing the router ==
After the installation has completed the router should be reachable by connecting to it LAN port using the configured LAN_IP (192.168.10.1 as default).

== TODO: add interfaces for olsrd, setup olsrd, setup wifi, setup free wifi ==