[Qt-interest] QtNetwork and raw ethernet properties

[Abdelrazak Younes]

Thiago Macieira wrote:
> On Monday 08 December 2008 17:03:00 Abdel Younes wrote:
>   
>> Hello,
>>
>> Google cannot give me an answer about this.
>>
>> I am wondering... is it possible to manipulate raw ethernet parameters
>> thanks to QtNetwork? Things like Mac addresses, vlan and tos bits? And
>> if not, would it be easy to extend the library in order to do this? If
>> not again, would someone recommend a good C++ library able to do this
>> kind of things? I mean, except for libpcap...
>>     
>
> Hi Abdel
>
> No, Qt does not offer that functionality.
>
> Qt offers only the ability to query information on the network devices. 
> Changing them requires administrator/root privileges, which is why we don't 
> provide that.
>
> In any case, changing MAC address is such a rare operation that I doubt we'd 
> add it.
>   

Well, this kind of things is pretty useful for the telco industry (i.e. 
big money), maybe you should reconsider ;-)

> Setting the TOS bits on TCP packets may be a future feature, since it's not a 
> privileged operation (setsockopt(2) and IP_TOS). But it's currently not 
> supported either.
>   

Looking forward to it :-)
If I may add a few feature requests:
- vlan tagging
- checking IP range address (multicast, unicast, IGMP)

Thanks Thiago,
Abdel.