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SubjectRe: RFC: Network privilege separation.
Andi Kleen wrote:
> On Wed, Jan 07, 2009 at 09:31:11PM -0500, Michael Stone wrote:
>
>> * so far as I know, netfilter is only commonly used to filter IP traffic.
>> Can
>> I really use it to limit connections to abstract unix sockets?
>>
>
> No you can't. But is that really your requirement? Why limiting Unix
> sockets and not e.g. named pipes? Unix sockets do not talk to the network.
>
> I suppose I don't understand your requirements very well.
>

I think it would be very interesting for PF_CAN sockets also.
CAN has no IP at all and the suggested idea of 'self-limiting' a user
process to use only the already open sockets could be a way to address
the use-cases Michael stated in his RFC.

Regards,
Oliver


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