From: Eric Leblond <eric@regit.org>
To: Ajay Lele <ajay.lele@gmail.com>
Cc: netfilter@vger.kernel.org
Subject: Re: nfq_bind_pf() simultaneously in 2 separate programs?
Date: Mon, 10 Jan 2011 23:24:49 +0100 [thread overview]
Message-ID: <1294698289.29036.8.camel@ice-age> (raw)
In-Reply-To: <AANLkTikumMyi8wSQt1ipz10w0TDyjqo6g8Wet-QJ63Pq@mail.gmail.com>
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Hello,
Le lundi 10 janvier 2011 à 12:31 -0800, Ajay Lele a écrit :
> Hi All
>
> I am using netfilter_queue library (version 1.0.0, nfnetlink version
> 1.0.0) to queue certain packets to user-space and it works great
>
> Now I want to run 2 instances on this program simultaneously with each
> program receiving and processing packets received on a different
> queue. The 1st instance of program runs fine, but call to
> nfq_unbind_pf()/nfq_bind_pf() for AF_INET fail in the 2nd instance
>
> Is it not possible to use netfilter_queue APIs simultaneously in 2
> programs when each one of them is listening to a separate queue? Any
> other approach which can be used to get this to work? - I don't want
> to merge the processing of packets on the 2 queues into a single
> program
nfq_bind_pf() call is linking the kernel nf_queue capability with the
nfnetlink_queue module for a given protocol. This has only to be done
once on a system (as nfnetlink_queue is the only userspace queuing
module for now).
Thus your program can simply ignore the return on nfq_[un]bind_pf()
function.
BR,
>
> Thanks in advance
>
> Regards
> Ajay
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--
Eric Leblond <eric@regit.org>
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next prev parent reply other threads:[~2011-01-10 22:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-10 20:31 nfq_bind_pf() simultaneously in 2 separate programs? Ajay Lele
2011-01-10 22:24 ` Eric Leblond [this message]
2011-01-10 23:36 ` Ajay Lele
2011-01-11 2:01 ` Eric Leblond
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