netdev - Question regarding IP_TOS and SO

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>] [day] [month] [year] [list]

Message-ID: <loom.20100525T230503-375@post.gmane.org>
Date:	Tue, 25 May 2010 21:19:32 +0000 (UTC)
From:	Holger Freyther <zecke@...fish.org>
To:	netdev@...r.kernel.org
Subject: Question regarding IP_TOS and SO_PRIORITY

Hi all,

I have a minor question regarding the IP_TOS and SO_PRIORITY socket
options. I was reading the man page for ip(7) and it pointed me to
socket(7) to look at the SO_PRIORITY. My man page claims that setting
the SO_PRIORITY will also set the tos on the outgoing IP header.

The problem is that I couldn't see the TOS set in my outgoing packets
and I was not able to find the code propagating the sk_priority into the
tos. On the other hand I could find that setting the IP_TOS will also
set the sk_priority.

Is this a documentation bug? Or did it work once? Or is it working and
my code was just broken and I'm too blind to find it?

z.

--
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