xnu-1228.5.20.tar.gz

[apple/xnu.git] / bsd / netinet / tcp_timer.c

diff --git a/bsd/netinet/tcp_timer.c b/bsd/netinet/tcp_timer.c
index 833caaf4cdbe179d937067052c5735ba4ea42c15..e8de99b71f73b2e6167fd787d3793c638234f177 100644 (file)
--- a/bsd/netinet/tcp_timer.c
+++ b/bsd/netinet/tcp_timer.c
@@ -729,15 +729,15 @@ tcp_timers(tp, timer)
                 * growth is 2 mss.  We don't allow the threshhold
                 * to go below this.)
                 */
                 * growth is 2 mss.  We don't allow the threshhold
                 * to go below this.)
                 */

-               {
-               u_int win = min(tp->snd_wnd, tp->snd_cwnd) / 2 / tp->t_maxseg;
-               if (win < 2)
-                       win = 2;
-               tp->snd_cwnd = tp->t_maxseg;
-               tp->snd_ssthresh = win * tp->t_maxseg;
-               tp->t_bytes_acked = 0;
-               tp->t_dupacks = 0;
-               tp->t_unacksegs = 0;
+               if (tp->t_state >=  TCPS_ESTABLISHED) {
+                       u_int win = min(tp->snd_wnd, tp->snd_cwnd) / 2 / tp->t_maxseg;
+                       if (win < 2)
+                               win = 2;
+                       tp->snd_cwnd = tp->t_maxseg;
+                       tp->snd_ssthresh = win * tp->t_maxseg;
+                       tp->t_bytes_acked = 0;
+                       tp->t_dupacks = 0;
+                       tp->t_unacksegs = 0;

                }
                EXIT_FASTRECOVERY(tp);
                (void) tcp_output(tp);
                }
                EXIT_FASTRECOVERY(tp);
                (void) tcp_output(tp);