A Simple "nano-router" type Raspberry image

Using the mk script.

• prep : Prepare the build environment
• clean : deletes the build and src trees
• ovl [sd=/dev/sdx] : copy the overlay files to sdcard
• sdcard [sd=/dev/sdx] : Install image to sdcard
• inst [sd=/dev/sdx ] : Install image and copy overlays to sdcard
• cc : Call make Make targets:
  • nconfig : Configure image
  • linux-menuconfig : Configure kernel
  • busybox-menuconfig : Configure busybox

1. ./mk prep Prepares the build environment
2. ./mk nconfig Initialises basic configuration.
3. ./mk Builds the whole thing
4. ./mk sdcard sd=/dev/xxxx Installs to SD card
5. Insert SD card into pi and run...

1. setup ethernet
2. setup wifi client
3. setup AP router
   • hostapd
   • nat (IP!)
     • static IP
     • sysctl
     • iptables
   • ap_ipcfg (configs static IP and dnsmasq)
   • dnsmasq (IP!)
4. user interface

• Configure AP SSID and PSK
• TODO: udhcp script should kill dnsmasq (so it checks IPs again)