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D28652.id83863.diff
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D28652.id83863.diff

Index: sys/netinet/tcp_input.c
===================================================================
--- sys/netinet/tcp_input.c
+++ sys/netinet/tcp_input.c
@@ -1649,7 +1649,8 @@
TCPSTAT_INC(tcps_ecn_shs);
}
if ((to.to_flags & TOF_SCALE) &&
- (tp->t_flags & TF_REQ_SCALE)) {
+ (tp->t_flags & TF_REQ_SCALE) &&
+ !(tp->t_flags & TF_NOOPT)) {
tp->t_flags |= TF_RCVD_SCALE;
tp->snd_scale = to.to_wscale;
} else
@@ -1660,7 +1661,8 @@
*/
tp->snd_wnd = th->th_win;
if ((to.to_flags & TOF_TS) &&
- (tp->t_flags & TF_REQ_TSTMP)) {
+ (tp->t_flags & TF_REQ_TSTMP) &&
+ !(tp->t_flags & TF_NOOPT)) {
tp->t_flags |= TF_RCVD_TSTMP;
tp->ts_recent = to.to_tsval;
tp->ts_recent_age = tcp_ts_getticks();
@@ -1669,9 +1671,11 @@
if (to.to_flags & TOF_MSS)
tcp_mss(tp, to.to_mss);
if ((tp->t_flags & TF_SACK_PERMIT) &&
- (to.to_flags & TOF_SACKPERM) == 0)
+ (!(to.to_flags & TOF_SACKPERM) ||
+ (tp->t_flags & TF_NOOPT)))
tp->t_flags &= ~TF_SACK_PERMIT;
- if (IS_FASTOPEN(tp->t_flags)) {
+ if (IS_FASTOPEN(tp->t_flags) &&
+ !(tp->t_flags & TF_NOOPT)) {
if (to.to_flags & TOF_FASTOPEN) {
uint16_t mss;
Index: sys/netinet/tcp_subr.c
===================================================================
--- sys/netinet/tcp_subr.c
+++ sys/netinet/tcp_subr.c
@@ -1763,10 +1763,12 @@
callout_init(&tp->t_timers->tt_2msl, 1);
callout_init(&tp->t_timers->tt_delack, 1);
- if (V_tcp_do_rfc1323)
- tp->t_flags = (TF_REQ_SCALE|TF_REQ_TSTMP);
- if (V_tcp_do_sack)
- tp->t_flags |= TF_SACK_PERMIT;
+ if (!(tp->t_flags & TF_NOOPT)) {
+ if (V_tcp_do_rfc1323)
+ tp->t_flags = (TF_REQ_SCALE|TF_REQ_TSTMP);
+ if (V_tcp_do_sack)
+ tp->t_flags |= TF_SACK_PERMIT;
+ }
TAILQ_INIT(&tp->snd_holes);
/*
Index: sys/netinet/tcp_syncache.c
===================================================================
--- sys/netinet/tcp_syncache.c
+++ sys/netinet/tcp_syncache.c
@@ -1655,7 +1655,8 @@
win = imin(win, TCP_MAXWIN);
sc->sc_wnd = win;
- if (V_tcp_do_rfc1323) {
+ if (V_tcp_do_rfc1323 &&
+ !(ltflags & TF_NOOPT)) {
/*
* A timestamp received in a SYN makes
* it ok to send timestamp requests and replies.

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