netdev - Re: [RFC][PATCH] [TPROXY] kick out TIME_WAIT sockets in case a new connection comes in with the same tuple

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 09 Dec 2008 22:18:38 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	bazsi@...abit.hu
Cc:	netdev@...r.kernel.org, tproxy@...ts.balabit.hu, hidden@....bme.hu,
	panther@...abit.hu
Subject: Re: [RFC][PATCH] [TPROXY] kick out TIME_WAIT sockets in case a new
 connection comes in with the same tuple

From: Balazs Scheidler <bazsi@...abit.hu>
Date: Tue, 09 Dec 2008 08:51:35 +0000

> Hi,
> 
> I'd like to get some guidance regarding the following patch. There's a 
> severe performance limitation related to TIME_WAIT sockets and TProxy rules.
> The patch below is the 'nice' approach, but it adds 6 bytes to 
> inet_sock and inet_timewait_sock. The 'ugly' approach would be to schedule the
> removal of the affected TIME_WAIT sockets at PREROUTING time.
> 
> This post is meant to get some review, but please do not apply this patch this time.

I have no general objection to this, but people seem to be
experts at making various parts of the TCP socket structures
larger and larger :-(
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html