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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Yannick Koehler <yannick@koehler.name>
Cc: Cong Wang <xiyou.wangcong@gmail.com>, netdev@vger.kernel.org
Subject: Re: Unix Socket buffer attribution
Date: Wed, 23 Jan 2013 09:13:05 -0800	[thread overview]
Message-ID: <1358961185.12374.853.camel@edumazet-glaptop> (raw)
In-Reply-To: <1358960188.12374.830.camel@edumazet-glaptop>

On Wed, 2013-01-23 at 08:56 -0800, Eric Dumazet wrote:

> You'll have to add proper limits (SO_RCVBUF), accounting the truesize of
> all accumulated messages.

And if you claim being able to remove DOS attacks, you'll also have to
add global limits, at a very minimum.

(a la /proc/sys/net/ipv4/tcp_mem or /proc/sys/net/ipv4/udp_mem)

Its not an easy problem, unfortunately.

  reply	other threads:[~2013-01-23 17:13 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-22  2:01 Unix Socket buffer attribution Yannick Koehler
2013-01-23  9:59 ` Hannes Frederic Sowa
2013-01-23 16:39   ` Yannick Koehler
2013-01-23 11:42 ` Cong Wang
2013-01-23 14:26   ` Eric Dumazet
2013-01-23 16:36     ` Yannick Koehler
2013-01-23 16:56       ` Eric Dumazet
2013-01-23 17:13         ` Eric Dumazet [this message]
2013-01-23 17:36           ` Yannick Koehler
2013-01-23 16:41 ` Yannick Koehler
2013-01-23 18:35   ` Hannes Frederic Sowa

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