[genode-main] network implementation example (for Parallella Board)

Emery Hemingway emery at ...261...
Mon May 16 13:39:45 CEST 2016


If you want a really simple UDP example there is a TFTP client that
uses the lwIP raw API. You can use the libc for "standard" sockets,
but if performance isn't much of a concern than I think starting out
with lwIP is a more pleasant choice.


There is some documentation on the raw API in the lwip contrib folder at


On Sun, May 15, 2016 at 06:45:04PM +0200, Rank Jerome wrote:
> Hello,
> I am a beginner in operating system level programming and a novice in 
> the use of Genode OS.
> I use Genode OS Framework 15.11 from the sourceforge download.
> I have carried out successfully the hello world introduction from the 
> 15.05 manual (Chapter 2.5) and the hello tutorial from the homepage, 
> but now I am stuck.
> Scenario: I have a (non-genode) server (runs in another terminal) 
> which sents UDP packets.
> These UDP packets I would like to register within my program at Genode 
> OS (hw_zync) on a qemu-emulated Parallella Board.
> For the Parallella Board the Genodes so called base-hw platform is to 
> be used.
> I already know that there are network drivers within dde_ipxe and that 
> within the repository "os" under "net" and "nic" exists header files 
> (e.g ethernet.h, udp.h). Furthermore, I know that I need to include 
> the IP address within the run files somehow.
> I also can not find (not even with "find") the file <lwip/sockets.h>, 
> which is referrenced in some files (like ).
> I do not know how I can achieve my implementation using this found 
> information. How can I access the network interface of Parallella 
> Board? How do I register UDP packets for further processing?
> Has anyone in this regard already functioning implementation examples 
> which help me understand my desired realization.
> with regards,
> Jerome
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