On 03/28/2013 05:03 PM, Max Seidenstuecker wrote: > Hello everyone, > > for a research project our company is aiming to use eCos on the target > hardware. The major requirement is a working IPv6 implementation and > TLS/SSL. In eCos there is a FreeBSD-based TCP/IP stack and an OpenSSL > implementation available. Why not LwIP? It also has IPv6. Mark, we are also still using freeBSD, and I still have to evaluate LwIP against our needs.. > > I see so many changes in the KAME project (FreeBSD IPv6 base) that I > am wondering if the version in eCos is stable enough. Has anyone got a > summary of the changes between 2001 and 2006 where the project > concluded? So we can see if an update is needed or worth doing. > > What would the tasks be to update an already ported stack? I would > rate myself as a rookie in the area of network and OS related > programming. But from what I saw in the code it seems like there is an > compatibilty layer (eCos wrapper) provided for easy updates to the > code. Would a copy/paste job and some minor adjustments to the code do > the trick then? I think it will be more than that.. I don't know really the Kame project, but it was also for FreeBSD, a PC network stack. So it must be adapted to embedded use. Here for example 2 issues that I discovered in the eCos freeBSD port that you don't see on a PC: - by default the maximum fragmented packet size is 9kB (instead of 64kB) - at ARP request timeout, only 1 packet is buffered. So if you are doing network bandwith testing with UDP messages, you will loose packets every 5 minutes (default ARP timeout)
I was also thinking of doing something like that, but only to add VLAN tagging support to eCos. But I can also use our switch chip to add VLAN tags as workaround. So that task is not so urgent anymore... I am interested in helping, but I have only limited time. Kind regards, Jürgen > > Sincerely, > Max -- Jürgen Lambrecht R&D Associate Tel: +32 (0)51 303045 Fax: +32 (0)51 310670 http://www.televic-rail.com Televic Rail NV - Leo Bekaertlaan 1 - 8870 Izegem - Belgium Company number 0825.539.581 - RPR Kortrijk
