about NFQUEUE and nth match
Frank Abel Cancio Bello
FRANKABEL at tesla.cujae.edu.cu
Tue Aug 2 01:18:33 CEST 2005
> On Mon, 2005-08-01 at 16:29 -0400, Frank Abel Cancio Bello wrote:
> > Hi all!
> > Some time ago I post a mail in this list
> > asking about how manage packets that was captured with "libipq" and
> > target in different threads or process.
> > Now with the new "NFQUEUE" target I can have many process reading
> > in different queues numbers and using "nth match" to spread equitably
> > all process the captured packects.
> This look terribly awfull to me ! You better use a single multithreaded
Due to libipq isn't thread-safe (see one problem in
and I'm not a netfilter hacker I send the mail
The problem is that I need to know if is safe make a multithreaded
application with libipq. Now I have the same questions that that some time
1-Exist other precaution
that I must take?
2-Can anybody send me a sample code about a multithreaded application with
libipq? A code different to the found in
Excuse me my panic but the application that I pretend to develop can't fail.
Is a traffic manager and the extrange behavior like reported in
> > My questions are:
> > 1-What libipq's functions change and how? I look in the manpage in the
> > recent 1.3.3 iptables release and don't find anything.
> It will come soon, userspace lib is only available from svn. A compat
> libipq library is planned but there's still work to do on it.
> SVN is available at :
> Currently the userspace API is work in progress...
> Eric Leblond <eric at inl.fr>
More information about the netfilter