22C3 - 2.2

22nd Chaos Communication Congress
Private Investigations

Felix Fietkau
Day 1
Room Saal 2
Start time 23:00
Duration 01:00
ID 1099
Event type Lecture
Track Hacking
Language English

Hacking OpenWRT

OpenWrt is a Linux distribution for embedded Wireless LAN routers. In this lecture I'm going to introduce OpenWrt and show you how you can use and customize it for your own projects.

OpenWrt is basically a complete Linux distribution designed to work within the space constraints of average wireless routers like the Linksys WRT54G or the ASUS WL-500g. Since April 2005 the build system has been completely rewritten to support a large repository of packages that are built automatically and to make it easy to port it to other router platforms in the future. That makes it useful for creating custom solutions involving wireless networking, like a Hotspot service complete with authentication and billing or a small Voice over IP server (with Asterisk). I'd like to present the structure of the OpenWrt base system and show you how you can create your own packages and firmware images with the tools that we provide (Image Builder, SDK and the build system itself).