netdev - When is the TCP Timestamp set?

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Message-Id: <18E6EC34-EECB-42E8-8911-54A0EF31D10E@cs.uni-bonn.de>
Date:	Mon, 14 Dec 2009 19:37:28 +0100
From:	Tim Schneider <schneid5@...uni-bonn.de>
To:	netdev <netdev@...r.kernel.org>
Subject: When is the TCP Timestamp set?

Hello,

I'm programming on a version of TCP-AP for the linux-kernel which delays the TCP-Packets so there is a little space inbetween the sent packets... The delaying of the packages is working as expected. Unfortunately I seem to be delaying the packets after the point where the timestamp is set for the calculation of the roundtrip time. Since I also need the correct RTT-values for the packets, I need to fix this problem.

Until now, I haven't been able to find the point in the TCP-Code where the timestamp for the RTT calculation is set, so I was hoping someone on the Mailinglist could give me a hint which function is setting the timestamp.

Thank you for your help!

Tim Schneider--
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