Dlink probably violate GPL again with their DIR-45X ?

[Peter Dambier]

Hi all,

could you please send me the file?

I wont promise I can read it but I am interested.

Maybe IASON can help you anlysing:

http://iason.site.voila.fr/

iason_0.0.7.tgz (experimentelle)


contains a tool "statfile [-v] [-v] file ..."
statmail does the same for mailbox files.

the statistics printed can help comparing files
and find same files at different places.

"-v" dumps the count found for each byte from 0 to 0xff.
The second "-v" dumps the table again after sorting.

the sources statfile.c and statmail.c should
compile on both unix and windows.


Kind regards
Peter and Karin


gitime lin wrote:
> Hi all,
> 
> This is the first time I've talk in this list.
> I just care about the GPL-violation affairs.
> 
> I did not have a DIR-450 Router.
> Either I did not downloaded the source tarball to check the detail.
> Since I'm a hardware engineer, the C codes is a little bit hard for me 
> to understand.
> 
> But I've just used madedit to hack and compare the firmware they released.
> After 2 released firmwares has been compared, I've found the image 
> header of the firmware might be 48 bytes long (0x40)
> I've found the header appeared twice in the whole image.
> So the structure of firmware I guess looks like the following.
> imghdr-kernel-imghdr-romfs
> or imghdr-romfs-imghdr-kernel.
> 
> Then I used madedit (hexeditor) trying to strip the  romfs off.
> Then after a trial-n-error of various compression tools, I've found the 
> romfs is compressed by zip!
> The file was cutted according to the first combination.
> imghdr-kernel-imghdr-romfs.
> So I've convinced I have stripped the romfs off.
> 
> But I don't know how to inspect the detail of romfs.
> I'm using windows computer for work.
> Since this platform is based on Linux I guess someone might be able to 
> help me to look what is inside of it. And see if they really violate the 
> GPL?
> 
> The cutted-off romfs is 2,916,363 bytes long.
> But after uncompressed by zip, the uncompressed length is 10,240,000 
> bytes long.
> 
> What I've stripped is the firmware DIR-450-V1.01-B0013.
> And it both works on DIR-450 Firmware v1.02_1.02.02.


-- 
Peter and Karin Dambier
Cesidian Root - Radice Cesidiana
Rimbacher Strasse 16
D-69509 Moerlenbach-Bonsweiher
+49(6209)795-816 (Telekom)
+49(6252)750-308 (VoIP: sipgate.de)
mail: peter at echnaton.serveftp.com
mail: peter at peter-dambier.de
http://iason.site.voila.fr/
https://sourceforge.net/projects/iason/
http://www.cesidianroot.com/