Files
linux/net
Eric Dumazet 20978981b4 tcp: tcp_make_synack() should clear skb->tstamp
[ Upstream commit b50edd7812 ]

I noticed tcpdump was giving funky timestamps for locally
generated SYNACK messages on loopback interface.

11:42:46.938990 IP 127.0.0.1.48245 > 127.0.0.2.23850: S
945476042:945476042(0) win 43690 <mss 65495,nop,nop,sackOK,nop,wscale 7>

20:28:58.502209 IP 127.0.0.2.23850 > 127.0.0.1.48245: S
3160535375:3160535375(0) ack 945476043 win 43690 <mss
65495,nop,nop,sackOK,nop,wscale 7>

This is because we need to clear skb->tstamp before
entering lower stack, otherwise net_timestamp_check()
does not set skb->tstamp.

Fixes: 7faee5c0d5 ("tcp: remove TCP_SKB_CB(skb)->when")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-29 10:31:47 +02:00
..
2014-02-16 23:45:00 -05:00
2014-01-21 18:13:05 -08:00
2014-02-10 17:51:29 -08:00
2013-09-23 16:52:45 -04:00
2013-10-19 19:36:19 -04:00
2015-03-18 13:31:31 +01:00
2013-11-21 13:09:42 -05:00
2010-10-15 15:53:27 +02:00
2015-02-26 17:50:11 -08:00