netdev - Re: [PATCH] RFC2988bis + taking RTT sample from 3WHS for the passive open side

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:	Wed, 08 Jun 2011 23:03:25 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jerry Chu <hkchu@...gle.com>
Cc:	David Miller <davem@...emloft.net>,
	Hagen Paul Pfeifer <hagen@...u.net>, tsunanet@...il.com,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] RFC2988bis + taking RTT sample from 3WHS for the
 passive open side

Le mercredi 08 juin 2011 à 11:04 -0700, Jerry Chu a écrit :
> [resent to cc netdev]
> 

Well, the first copy I received this morning was OK ;)

But this second one is mangled by your mailer or something ?

> This patch lowers the default initRTO from 3secs to 1sec per
> RFC2988bis. It falls back to 3secs if the SYN or SYN-ACK packet
> has been retransmitted, AND the TCP timestamp option is not on.
> 
> It also adds support to take RTT sample during 3WHS on the passive
> open side, just like its active open counterpart, and uses it, if
> valid, to seed the initRTO for the data transmission phase.
> 
> The patch also resets ssthresh to its initial default at the
> beginning of the data transmission phase, and reduces cwnd to 1 if
> there has been MORE THAN ONE retransmission during 3WHS per RFC5681.
> 
> Signed-off-by: H.K. Jerry Chu <hkchu@...gle.com>
> ---



--
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