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  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:	Thu, 22 Nov 2007 22:06:35 -0800
From:	"David Schwartz" <davids@...master.com>
To:	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>
Cc:	<netdev@...r.kernel.org>
Subject: RE: [RFC/PATCH] SO_NO_CHECK for IPv6


> Regardless of whatever verifications your application is doing
> on the data, it is not checksumming the ports and that's what
> the pseudo-header is helping with.

So what? We are in the case where the data has already gotten to him. If it
got to him in error, he'll reject it anyway. The receive checksum check will
only reject packets that he would reject anyway. That makes it needless.

Of course, if the check is nearly free, there's no potential win, so no
point in bothering.

DS


-
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

Powered by blists - more mailing lists