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Diffstat (limited to 'slirp/tcp_timer.c')
-rw-r--r--slirp/tcp_timer.c17
1 files changed, 1 insertions, 16 deletions
diff --git a/slirp/tcp_timer.c b/slirp/tcp_timer.c
index 9215eb2e61..9cacb0f0d4 100644
--- a/slirp/tcp_timer.c
+++ b/slirp/tcp_timer.c
@@ -102,10 +102,6 @@ tpgone:
;
}
tcp_iss += TCP_ISSINCR/PR_SLOWHZ; /* increment iss */
-#ifdef TCP_COMPAT_42
- if ((int)tcp_iss < 0)
- tcp_iss = 0; /* XXX */
-#endif
tcp_now++; /* for timestamps */
}
@@ -210,7 +206,6 @@ tcp_timers(register struct tcpcb *tp, int timer)
* retransmit times until then.
*/
if (tp->t_rxtshift > TCP_MAXRXTSHIFT / 4) {
-/* in_losing(tp->t_inpcb); */
tp->t_rttvar += (tp->t_srtt >> TCP_RTT_SHIFT);
tp->t_srtt = 0;
}
@@ -275,7 +270,6 @@ tcp_timers(register struct tcpcb *tp, int timer)
if (tp->t_state < TCPS_ESTABLISHED)
goto dropit;
-/* if (tp->t_socket->so_options & SO_KEEPALIVE && */
if ((SO_OPTIONS) && tp->t_state <= TCPS_CLOSE_WAIT) {
if (tp->t_idle >= TCPTV_KEEP_IDLE + TCP_MAXIDLE)
goto dropit;
@@ -292,17 +286,8 @@ tcp_timers(register struct tcpcb *tp, int timer)
* correspondent TCP to respond.
*/
STAT(tcpstat.tcps_keepprobe++);
-#ifdef TCP_COMPAT_42
- /*
- * The keepalive packet must have nonzero length
- * to get a 4.2 host to respond.
- */
- tcp_respond(tp, &tp->t_template, (struct mbuf *)NULL,
- tp->rcv_nxt - 1, tp->snd_una - 1, 0);
-#else
tcp_respond(tp, &tp->t_template, (struct mbuf *)NULL,
tp->rcv_nxt, tp->snd_una - 1, 0);
-#endif
tp->t_timer[TCPT_KEEP] = TCPTV_KEEPINTVL;
} else
tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_IDLE;
@@ -310,7 +295,7 @@ tcp_timers(register struct tcpcb *tp, int timer)
dropit:
STAT(tcpstat.tcps_keepdrops++);
- tp = tcp_drop(tp, 0); /* ETIMEDOUT); */
+ tp = tcp_drop(tp, 0);
break;
}