svn commit: r237064 - user/andre/tcp_workqueue/sys/netinet
Andre Oppermann
andre at FreeBSD.org
Thu Jun 14 12:38:52 UTC 2012
Author: andre
Date: Thu Jun 14 12:38:51 2012
New Revision: 237064
URL: http://svn.freebsd.org/changeset/base/237064
Log:
Add SACK_PERMIT to the list of TCP options that are switched off after
retransmitting a SYN three times.
Modified:
user/andre/tcp_workqueue/sys/netinet/tcp_timer.c
Modified: user/andre/tcp_workqueue/sys/netinet/tcp_timer.c
==============================================================================
--- user/andre/tcp_workqueue/sys/netinet/tcp_timer.c Thu Jun 14 12:37:41 2012 (r237063)
+++ user/andre/tcp_workqueue/sys/netinet/tcp_timer.c Thu Jun 14 12:38:51 2012 (r237064)
@@ -566,7 +566,7 @@ tcp_timer_rexmt(void * xtp)
* unknown-to-them TCP options.
*/
if ((tp->t_state == TCPS_SYN_SENT) && (tp->t_rxtshift == 3))
- tp->t_flags &= ~(TF_REQ_SCALE|TF_REQ_TSTMP);
+ tp->t_flags &= ~(TF_REQ_SCALE|TF_REQ_TSTMP|TF_SACK_PERMIT);
/*
* If we backed off this far, our srtt estimate is probably bogus.
* Clobber it so we'll take the next rtt measurement as our srtt;
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