Re: Select chain from set?

[Susan Hinrichs <shinrich@thought-mesh.net>]

On Thu, 2009-05-07 at 16:01 +0200, Thomas Jacob wrote:
> On Thu, 2009-05-07 at 08:44 -0500, Susan Hinrichs wrote:
> > On Thu, 2009-05-07 at 13:07 +0300, Покотиленко Костик wrote:
> > > В Чтв, 30/04/2009 в 10:52 -0500, Susan Hinrichs пишет:
> > > > On Wed, 2009-04-29 at 11:11 +0300, Покотиленко Костик wrote:
> > > > > В Вто, 28/04/2009 в 10:39 -0500, Susan Hinrichs пишет:
> > > > > > I also agree that a runtime structure to track traffic attributes and
> > > > > > match them to targets would be great.  I created my own match-tree table
> > > > > > generator to achieve a similar effect.  It works, but updating large
> > > > > > static structures can be rather time consuming and fragile.
> > > > > 
> > > > > Can you share details?
> > > > > 
> > > > 
> > > > Sure, I have a tool that takes a list of IP's, MACs, or marks, and
> > > > builds a prefix-based binary tree of the data.  It generates the tree in
> > > > linked chains.  It operates in bulk and incremental model.
> > > 
> > > What is the purpose of this?
> > 
> > The tree lets you efficiently match a packet and do something unique for
> > each "client" or "grouping".  So set a mark or set a class ID or update
> > a unique recent set. As was noted in this thread earlier, ipset lets you
> > efficiently match a packet basic on an address, but it doesn't let you
> > do anything unique for each match. 
> 
> Nftables will let you do that in the future
> 
> http://lwn.net/Articles/324251/
> 

Great! Looking forward to it.  The dictionaries look great.  I'll have
to start playing with the first version on a test machine.  Do you know
what kind of MAC address support there is?  Similar to the source mac
support in iptables?