From e7d0c88586a66cf03e70750a8119d984fdedf2aa Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Wed, 25 Jul 2007 23:50:06 -0700
Subject: [PATCH] [TCP]: cubic - eliminate use of receive time stamp

Remove use of received timestamp option value from RTT calculation in Cubic.
A hostile receiver may be returning a larger timestamp option than the original
value. This would cause the sender to believe the malevolent receiver had
a larger RTT and because Cubic tries to provide some RTT friendliness, the
sender would then favor the liar.

Instead, use the jiffie resolutionRTT value already computed and
passed back after ack.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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