Difference between pages "BlueHackers BoF" and "Tutorials/Reverse engineering embedded software using Radare2"

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(Sign-ups for the BlueHackers BoF)
 
 
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{{Trail|Programme|BoF Sessions}}
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This page describes preparation for [http://linux.conf.au/schedule/30102/view_talk?day=thursday Reverse engineering embedded software using Radare2]
= BlueHackers Birds of a Feather =
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BlueHackers is an informal organisation of hackers and geeks who discuss and support each other on the topic of depression and mental illness. This BoF is an opportunity to meet with and talk freely about the topic of depression with other affected people. This isn't a therapy group, and is not a substitute for professional help. However talking openly about this topic is one of the most positive and helpful things we can do for each other.  Participation is completely optional and voluntary - you are welcome to sit up the back and just listen if you prefer.
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== Outline ==
  
For more information you can read [http://bluehackers.org/about about BlueHackers].
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We will try and get through all the following:
  
 +
* Introduction to Radare2 reverse engineering tool
 +
* The Radare2 utilities
 +
* Basics of using the Radare to examine a binary you probably have on your laptop
 +
* Looking at an arduino binary
 +
* Introduction to MIPS architecture and disassembly
 +
* Extracting firmware images
  
This Birds of a Feather is being held on 13 January 2015 at 19:30 in Caseroom 2.
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You might like to bring your own binary to play with as well instead!
  
== Sign-ups for the BlueHackers BoF ==
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==Important - please make an rc file ==
  
'''Please Note:''' Sign-ups are optional. Everyone is welcome.
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Radare2 was created by other, many people. Radare2 will by default print fortune cookies. Please, turn this feature off, by making the following file, in case there is a possibility of NSFW output.
  
* John Dalton (@johndalton) - BoF Coordinator
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Instructions for Linux/Unix systems:
* [[User:Augur_.|<font color="#703931">'''ᏜᏠᎶᏠᏑ'''</font>]]
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* Peter Lawler
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    echo 'e cfg.fortunes=false' > ~/.radare2rc
 +
 
 +
== Prerequisites ==
 +
 
 +
If during the tutorial you are planning to follow the examples and/or try your own ideas, you really want to get this sorted before the event.
 +
 
 +
Minimum requirements:
 +
* a C compiler and libraries needed to build radare2 - the "apt-gettable" version is out of date
 +
* xdot for viewing callgraphs
 +
* binwalk and srecord for firmware hacking
 +
 
 +
Various other tools may be helpful, and indeed needed (e.g. an editor) to complete some of the examples
 +
 
 +
If you are using a Debian-derived distro, for example:
 +
 
 +
    sudo apt-get install build-essential git xdot eog ghex binwalk vim gedit srecord
 +
 
 +
It should be possible to build radare2 on Linux, FreeBSD/NetBSD etc, Max OS/X and Windows and possibly on Android if you try hard enough (using a Debian root, for example)
 +
 
 +
However, the tutorial examples have only been tested using Debian Wheezy.
 +
 
 +
=== Clone & build radare2 ===
 +
 
 +
Note, changing to the lca2015_tutorial branch is important, because the software is under active development there could be breakage in master 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 the examples repository, ready for use during the tutorial
 +
 
 +
    cd
 +
    git clone http://github.com/pastcompute/lca2015-radare2-tutorial
 +
 
 +
I have already added prebuilt examples to git but there are instructions for building them in git, you will need the arduino IDE or an openwrt buildroot.
 +
 
 +
==Troubleshooting==
 +
 
 +
The tutorial is not until Thursday afternoon. If you need help with the above ping me on Twitter, preferably before the day! [https://twitter.com/pastcompute @pastcompute]

Revision as of 22:35, 10 January 2015

This page describes preparation for Reverse engineering embedded software using Radare2

Outline

We will try and get through all the following:

  • Introduction to Radare2 reverse engineering tool
  • The Radare2 utilities
  • Basics of using the Radare to examine a binary you probably have on your laptop
  • Looking at an arduino binary
  • Introduction to MIPS architecture and disassembly
  • Extracting firmware images

You might like to bring your own binary to play with as well instead!

Important - please make an rc file

Radare2 was created by other, many people. Radare2 will by default print fortune cookies. Please, turn this feature off, by making the following file, in case there is a possibility of NSFW output.

Instructions for Linux/Unix systems:

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

Prerequisites

If during the tutorial you are planning to follow the examples and/or try your own ideas, you really want to get this sorted before the event.

Minimum requirements:

  • a C compiler and libraries needed to build radare2 - the "apt-gettable" version is out of date
  • xdot for viewing callgraphs
  • binwalk and srecord for firmware hacking

Various other tools may be helpful, and indeed needed (e.g. an editor) to complete some of the examples

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

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

It should be possible to build radare2 on Linux, FreeBSD/NetBSD etc, Max OS/X and Windows and possibly on Android if you try hard enough (using a Debian root, for example)

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

Clone & build radare2

Note, changing to the lca2015_tutorial branch is important, because the software is under active development there could be breakage in master 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 the examples repository, ready for use during the tutorial

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

I have already added prebuilt examples to git but there are instructions for building them in git, you will need the arduino IDE or an openwrt buildroot.

Troubleshooting

The tutorial is not until Thursday afternoon. If you need help with the above ping me on Twitter, preferably before the day! @pastcompute