From: Bart De Schuymer <bdschuym@pandora.be>
To: Peter Gordon <peter@pg-consultants.com>
Cc: Jan Engelhardt <jengelh@medozas.de>, netfilter-devel@vger.kernel.org
Subject: Re: Modifying ebtables to read the commands from a file
Date: Wed, 31 Mar 2010 13:45:00 +0200 [thread overview]
Message-ID: <4BB335BC.5060209@pandora.be> (raw)
In-Reply-To: <1270020234.2792.11.camel@qed>
Peter Gordon schreef:
> Thanks for the reply.
>
> The counters are not particularly interesting in my application, so that
> isn't a problem.
>
> ebtables-restore replaces the rules atomically. There are two meanings
> in this context to "atomic".
>
> a) The old ruleset is deleted, and after, the new ruleset is applied
> atomically, at a single instant in time.
>
> or
>
> b) The old ruleset is deleted and replaced by the new ruleset as one
> action - with no time gap between them.
>
>
1 the new table content is constructed
2 the pointer to the old table is replaced by a pointer to the new table
3 the old table is deleted
So there's no gap of time in which there is no table ruleset present.
cheers,
Bart
--
Bart De Schuymer
www.artinalgorithms.be
prev parent reply other threads:[~2010-03-31 11:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-28 10:07 Modifying ebtables to read the commands from a file Peter Gordon
2010-03-28 13:00 ` Jan Engelhardt
2010-03-28 15:43 ` Bart De Schuymer
2010-03-31 7:23 ` Peter Gordon
2010-03-31 11:45 ` Bart De Schuymer [this message]
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