Rename DisableLinger to DisableFinWait, and add an EnableFinWait.

Change-Id: I226a41e7eed6cc5bda04f1fb3a0f1889a10408c0

2 files changed, 9 insertions, 4 deletions

diff --git a/tests/net_test/net_test.py b/tests/net_test/net_test.py
index d7ea0130..71429605 100755
--- a/tests/net_test/net_test.py
+++ b/tests/net_test/net_test.py
@@ -153,7 +153,12 @@ def RawGRESocket(family):
   return s
 
 
-def DisableLinger(sock):
+def EnableFinWait(sock):
+  # Disabling SO_LINGER causes sockets to go into FIN_WAIT on close().
+  sock.setsockopt(SOL_SOCKET, SO_LINGER, struct.pack("ii", 0, 0))
+
+def DisableFinWait(sock):
+  # Enabling SO_LINGER with a timeout of zero causes close() to send RST.
   sock.setsockopt(SOL_SOCKET, SO_LINGER, struct.pack("ii", 1, 0))
 
 
@@ -165,8 +170,8 @@ def CreateSocketPair(family, socktype, addr):
   listensock.listen(1)
   clientsock.connect(addr)
   acceptedsock, _ = listensock.accept()
-  DisableLinger(clientsock)
-  DisableLinger(acceptedsock)
+  DisableFinWait(clientsock)
+  DisableFinWait(acceptedsock)
   listensock.close()
   return clientsock, acceptedsock
 
diff --git a/tests/net_test/tcp_test.py b/tests/net_test/tcp_test.py
index 81a6884e..5a8dde35 100644
--- a/tests/net_test/tcp_test.py
+++ b/tests/net_test/tcp_test.py
@@ -98,7 +98,7 @@ class TcpBaseTest(multinetwork_base.MultiNetworkBaseTest):
       return
 
     self.accepted, _ = self.s.accept()
-    net_test.DisableLinger(self.accepted)
+    net_test.DisableFinWait(self.accepted)
 
     if end_state == TCP_ESTABLISHED:
       return