Re: [RFC][PATCH] Per-conntrack timeout target v3

[Phil Oester <kernel@linuxace.com>]

On Wed, Nov 28, 2007 at 10:06:16AM +0100, Patrick McHardy wrote:
> I think the patch is useful, but I wonder how long it will take until
> people want to override timeouts for other connection states. I'm
> also looking for a way to pass parameters for new connections to
> helpers (most of the things that are currently module parameters),
> so maybe we could generalize this to a conntrack parameter target?

In thinking about this, it seems like a HELPER target would be
useful, for instance if some random FTP server ran on a non-standard
port and we wanted the FTP helper to be used.  Something like:

    -s X -p 210 -j HELPER --helper ftp

Or did you have something else in mind, such as being able to 
change the _global_ ports in use by the FTP helper?  (or both?)

I suppose we could allow adjustment of other timeouts by
having multiple arguments to -j TIMEOUT, such as --syn_sent,
--syn_recv, etc. though the check() becomes more complicated
between the various protos.

Phil