Deutsche Telekom W700V GPL violation
Sascha Wüstemann
sascha at killerhippy.de
Wed Jun 18 21:45:30 CEST 2008
Sebastian Gottschall wrote:
> Hello
>
> While checking the latest firmware release of the Deutsche Telekom W700V
> router i found a serious gpl violation in the firmware
>
> the firmware named fw-sp-w700v-ipone-b-3_22_000.bin. Even if this
> firmware is not based on linux, the vendor used several gpl licensed
> parts of linux projects and from the linux kernel core itself
> to build his firmware. there is a tool around named SP700EX.exe which
> can be used for extracting the image
>
> i found the following text strings within the extracted firmware binary:
>
> [ipriv]: Usage: iwpriv interface [private-command [private-arguments]]
> interface [roam {on|off}]
> interface [port {ad-hoc|managed|N}]
> Not yet implemented...
> The command %s need exactly %d argument...
> Interface doesn't accept private ioctl...
> %s (%X): %s
> Invalid command : %s
> Invalid private ioctl definition for
> (and others)
>
> which shows that the linux wireless tools are compiled in
> additionally the vendor ported madwifi to his own operating system and
> included the wireless extension interface which is part of the linux
> kernel.
> this can be proved with other text patterns too
> since the firmware uses slot of linux based drivers (non gpl drivers
> like madwifi and others), its also very likelly that other parts of the
> linux kernel are stolen
> to build up this non gpl'ed operating system
>
> for sure there is no sourcecode provided for anything
>
>
> Sebastian Gottschall
>
>
Addition:
I have checked that there is a GNU GPL license download link for the
Speedport W 900V, see
http://hilfe.telekom.de/hsp/cms/content/HSP/de/3388/theme-2000178/theme-2001628/theme-16096128
while the Speedport W 700V has not
http://hilfe.telekom.de/hsp/cms/content/HSP/de/3388/theme-2000178/theme-2001628/theme-6512161
Looks like the Telekom is conscious about the GPL license but does not
strive for it very much. Note that the Speedport W 900V is a newer than
the W 700V, too. Very unsatisfactory is that you don't find the GPL
license shipped with the W 700V when using the search function at this
site, which means that you can't use it.
Greetings,
Sascha
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