From c08879edea3fdb010989e32830c873e49669d386 Mon Sep 17 00:00:00 2001
From: Asias He <asias@cloudius-systems.com>
Date: Fri, 24 Oct 2014 16:27:00 +0800
Subject: [PATCH] tcp: Do not advertise zero window when ACK remote FIN

Follow Linux's behavior.
---
 net/tcp.hh | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/tcp.hh b/net/tcp.hh
index a9034880e1..b79b6494e9 100644
--- a/net/tcp.hh
+++ b/net/tcp.hh
@@ -515,7 +515,6 @@ void tcp<InetTraits>::tcb::input(tcp_hdr* th, packet p) {
                 // FIXME: we might queue an out-of-order FIN.  Is it worthwhile?
                 _foreign_fin_received = true;
                 _rcv.next = fin_seq + 1;
-                _rcv.window = 0;
                 if (_rcv._user_waiting) {
                     _rcv._user_waiting = false;
                     _rcv._data_received.set_value();