D46428.diff
No OneTemporary
Actions

Size

1 KB

Referenced Files

None

Subscribers

None

D46428.diff
View Options

	diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c
	--- a/sys/netinet/tcp_syncache.c
	+++ b/sys/netinet/tcp_syncache.c
	@@ -527,10 +527,16 @@
	}

	NET_EPOCH_ENTER(et);
	- syncache_respond(sc, NULL, TH_SYN\|TH_ACK);
	+ if (syncache_respond(sc, NULL, TH_SYN\|TH_ACK) == 0) {
	+ syncache_timeout(sc, sch, 0);
	+ TCPSTAT_INC(tcps_sndacks);
	+ TCPSTAT_INC(tcps_sndtotal);
	+ TCPSTAT_INC(tcps_sc_retransmitted);
	+ } else {
	+ syncache_drop(sc, sch);
	+ TCPSTAT_INC(tcps_sc_dropped);
	+ }
	NET_EPOCH_EXIT(et);
	- TCPSTAT_INC(tcps_sc_retransmitted);
	- syncache_timeout(sc, sch, 0);
	}
	if (!TAILQ_EMPTY(&(sch)->sch_bucket))
	callout_reset(&(sch)->sch_timer, (sch)->sch_nextc - tick,
	@@ -688,7 +694,13 @@
	"sending challenge ACK\n",
	s, __func__,
	th->th_seq, sc->sc_irs + 1, sc->sc_wnd);
	- syncache_respond(sc, m, TH_ACK);
	+ if (syncache_respond(sc, m, TH_ACK) == 0) {
	+ TCPSTAT_INC(tcps_sndacks);
	+ TCPSTAT_INC(tcps_sndtotal);
	+ } else {
	+ syncache_drop(sc, sch);
	+ TCPSTAT_INC(tcps_sc_dropped);
	+ }
	}
	} else {
	if ((s = tcp_log_addrs(inc, th, NULL, NULL)))
	@@ -1549,6 +1561,9 @@
	syncache_timeout(sc, sch, 1);
	TCPSTAT_INC(tcps_sndacks);
	TCPSTAT_INC(tcps_sndtotal);
	+ } else {
	+ syncache_drop(sc, sch);
	+ TCPSTAT_INC(tcps_sc_dropped);
	}
	SCH_UNLOCK(sch);
	goto donenoprobe;