netdev - Re: [PATCH net-next] netfilter: xt_quota: fix the behavior of xt

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Message-ID: <20181003153719.ukchffiac7dr6qlt@salvia>
Date:   Wed, 3 Oct 2018 17:37:19 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Chenbo Feng <chenbofeng.kernel@...il.com>
Cc:     netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        kernel-team@...roid.com, Lorenzo Colitti <lorenzo@...gle.com>,
        maze@...gle.com, Chenbo Feng <fengc@...gle.com>
Subject: Re: [PATCH net-next] netfilter: xt_quota: fix the behavior of
 xt_quota module

On Mon, Oct 01, 2018 at 06:23:08PM -0700, Chenbo Feng wrote:
> From: Chenbo Feng <fengc@...gle.com>
> 
> A major flaw of the current xt_quota module is that quota in a specific
> rule gets reset every time there is a rule change in the same table. It
> makes the xt_quota module not very useful in a table in which iptables
> rules are changed at run time. This fix introduces a new counter that is
> visible to userspace as the remaining quota of the current rule. When
> userspace restores the rules in a table, it can restore the counter to
> the remaining quota instead of resetting it to the full quota.

Applied, thanks.