Re: [PATCH v8 00/27] Unified flow table

[David Gibson <david@gibson.dropbear.id.au>]

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On Fri, Jul 19, 2024 at 09:20:27PM +0200, Stefano Brivio wrote:
> On Thu, 18 Jul 2024 15:26:26 +1000
> David Gibson <david@gibson.dropbear.id.au> wrote:
> 
> > This is the seventh draft of an implementation of more general
> > "connection" tracking, as described at:
> >     https://pad.passt.top/p/NewForwardingModel
> > 
> > This series changes the TCP connection table and hash table into a
> > more general flow table that can track other protocols as well.  Each
> > flow uniformly keeps track of all the relevant addresses and ports,
> > which will allow for more robust control of NAT and port forwarding.
> > 
> > ICMP and UDP are converted to use the new flow table.
> > 
> > This is based on the recent series of UDP flow table preliminaries.
> > 
> > Caveats:
> >  * We roughly double the size of a connection/flow entry
> >  * We don't yet record the local address of flows initiated from a
> >    socket, even in cases where it's bound to a specific address.
> > 
> > Changes since v7:
> >  * Rebase
> >  * Fix unintended regression in forwarding logic (we weren't applying
> >    map_gw logic to DNS packets, if they didn't hit explicit DNS
> >    forwarding rules).
> >  * Remove return value from pif_sockaddr(), in turned out not to be
> >    very useful.
> >  * More robust discarding of datagrams received between bind() and
> >    connect() on UDP reply sockets.
> >  * Avoid the name 'fside' for variables which was confusing in some
> >    contexts
> >  * Assorted minor changes based on feedback.
> 
> Applied (!)

🎉

-- 
David Gibson (he or they)	| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you, not the other way
				| around.
http://www.ozlabs.org/~dgibson

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