Home > Linux, Linux 2.6, Programming, Sigma Designs SMP863X > P2P for embedded systems: BitTorrent and Emule – Part 1

P2P for embedded systems: BitTorrent and Emule – Part 1

December 29th, 2010 Leave a comment Go to comments

edonkey software for embedded systemsWhether your device is a Network Access Storage (NAS) or a media player with network capabilities, you may consider adding P2P to allow downloads of files as you would do on your computer.

Two of the most used P2P protocols are BitTorrent and eMule, but most of the client have a UI designed for Linux or Windows and may not be easily ported to an embedded system. So what we need to look for here are command line based clients or daemons that can be compiled and run in an embedded platform.

After some research, here are the 2 programs we’ll use:

Today, I’ll show how to use aMule 2.2.6 in Sigma Designs SMP863X target, for example in Popcorn Hour A-100. But a similar method (just a different compiler mips-linux-gnu-gcc and setting Little endian (-EL)) could also be used for SMP864x/SMP865x devices such as Popcorn Hour A-200 Networked Media Tankand other mips/arm based systems.

Building aMule 2.2.6 daemon and webserver

First download aMule 2.2.6 source code on sourceforge and the dependencies zlib 1.2.5wxWidgets 2.8.11, Crypto++5.6.1, libpng-1.4.5 and gettext 0.18.1.1 (for libintl).

Extract them:

tar xjvf ../Downloads/aMule-2.2.6.tar.bz2
tar xzvf ../Downloads/zlib-1.2.5.tar.gz
tar xzvf ../Downloads/libpng-1.4.5.tar.gz
tar xzvf ../Downloads/wxWidgets-2.8.11.tar.gz
mkdir crypto++5.6.1 & unzip ../../Download/cryptopp5.6.1.zip
tar xzvf ../Downloads/

Build zlib 1.2.5:

AR=mipsel-linux-ar  CC=mipsel-linux-gcc ./configure –prefix=/home/jaufranc/edev/libs
make
make install

Build libpng 1.4.5:

./configure –target=mipsel-linux –host=mipsel-linux –prefix=/home/jaufranc/edev/libs CFLAGS=-I/home/jaufranc/edev/zlib-1.2.5/ LDFLAGS=”-L/home/jaufranc/edev/libs/lib”
make
make install

Build wxWidgets without GUI support and with Unicode support:

./configure –host=mipsel-linux –target=mipsel-linux –disable-gui –prefix=/home/jaufranc/edev/libs
make
make install

Build Crypt++ 5.6.1

AR=mipsel-linux-gcc CXX=mipsel-linux-g++ make

Build libintl (in gettext)

./configure –host=mipsel-linux –target=mipsel-linux –prefix=/home/jaufranc/edev/libs
cd gettext-runtime/intl
make
make install

Build aMule

./configure –target=mipsel-linux –host=mipsel-linux  –disable-monolithic –enable-amule-daemon –enable-webserver –disable-ed2k –with-zlib=/home/jaufranc/edev/libs –with-wx-prefix=/home/jaufranc/edev/libs –with-crypto-prefix=/home/jaufranc/edev/crypto++5.6.1  –with-libintl-prefix=/home/jaufranc/edev/libs –with-libpng-prefix=/home/jaufranc/edev/libs –prefix=/home/jaufranc/edev/amule
make
make install

That’s it you now have amuled (the daemon) and amuleweb (the web server) in  the prefix directory.

Installing and running amuled and amuleweb in the target board

Once you have all files installed in the prefix directory (/home/jaufranc/edev/amule in our example), you’ll need to copy those files to the target board (skip man directory) and the dynamic libraries for libintl, zlib, libpng and wxWidgets to /lib inside the root file system (rootFS).

To use aMule, simply use the instructions at http://wiki.amule.org/index.php/HowTo_get_aMule_web_interface then with a web browser in your PC, tablet or smartphone, you’ll be able to access amule web configuration page on your board as follows:

http://board_ip:4711

to add ed2k links and monitor the download status.

In part 2, I explain how to build, install and run Transmission BT daemon in an embedded system.

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