Notes for the LCA2015 Radare2 Tutorial

Prerequisites

Minimum required is a C compiler and libraries needed to build radare2, and xdot for viewing callgraphs.

Various other tools may be helpful, and indeed needed to complete all parts of an exercise

If you are using a Debian-derived distro, for example:

sudo apt-get install build-essential xdot eog ghex binwalk vim gedit srecord

It should be possible to build radare2 on Linux, FreeBSD/NetBSD etc, Max OS/X and Windows

Note, the tutorial examples have only been tested using Debian Wheezy.

Clone & build radare2

Note, changing to the lca2015_tutorial branch is important, there may be some fixes not merged upstream

git clone http://github/com/pastcompute/radare2
cd radare2
git checkout tutorial_branch
./configure
make -j
sudo make symstall

Note, you can install as a normal user if you need to:

./configure --prefix=$HOME/path/to/wherever
make -j
sudo make symstall
export PATH=$HOME/path/to/wherever:$PATH

Clone this repository

cd
git clone http://github/com/pastcompute/lca2015-radare2-tutorial

Build misc example programs

Create temporary directory

cd lca2015-radare2-tutorial
make helpers

Rebuild example MIPS binaries

Note: this requires an OpenWRT buildroot.

Note: this is NOT required to complete the tutorial, prebuilt binaries are in git.

make

Set an rc file

Radare2 will by default print fortune cookies. Please, turn this off, in case there is a possibility of NSFW output...

echo 'e cfg.fortunes=false' > ~/.radare2rc

If you want to build some of the pre-built binaries already in the git repository

Arduino Binary Example

This requires the Arduino IDE, I used 1.0.6. It can be downloaded from http://arduino.cc/en/Main/Software

MIPS Binary Example

I built the MIPS binaries using an OpenWRT buildroot, from OpenWRT Barrier Breaker for ar71xx. This can be downloaded from https://downloads.openwrt.org/barrier_breaker/14.07/ar71xx/generic. Specifically, the file is OpenWrt-Toolchain-ar71xx-for-mips_34kc-gcc-4.8-linaro_uClibc-0.9.33.2.tar.bz2