From 11c0549fee379a170f18d9e427ce87bb6965ddaf Mon Sep 17 00:00:00 2001
From: Florin Coras <fcoras@cisco.com>
Date: Wed, 10 May 2017 12:29:14 -0700
Subject: Handle RST of TCP connections in SYN-RCVD state, VPP-822
Change-Id: Ieb0c1e690d6ae082cfedb276252a31fab480e561
Signed-off-by: Florin Coras <fcoras@cisco.com>
---
src/vnet/tcp/tcp.c | 31 +++++++++++++++++++++++--------
1 file changed, 23 insertions(+), 8 deletions(-)
(limited to 'src')
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index a65ab7ffac4..e365fa0ed82 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -150,15 +150,30 @@ tcp_connection_del (tcp_connection_t * tc)
void
tcp_connection_reset (tcp_connection_t * tc)
{
- if (tc->state == TCP_STATE_CLOSED)
- return;
-
- tc->state = TCP_STATE_CLOSED;
-
- /* Make sure all timers are cleared */
- tcp_connection_timers_reset (tc);
+ switch (tc->state)
+ {
+ case TCP_STATE_SYN_RCVD:
+ /* Cleanup everything. App wasn't notified yet */
+ stream_session_delete_notify (&tc->connection);
+ tcp_connection_cleanup (tc);
+ break;
+ case TCP_STATE_SYN_SENT:
+ case TCP_STATE_ESTABLISHED:
+ case TCP_STATE_CLOSE_WAIT:
+ case TCP_STATE_FIN_WAIT_1:
+ case TCP_STATE_FIN_WAIT_2:
+ case TCP_STATE_CLOSING:
+ tc->state = TCP_STATE_CLOSED;
+
+ /* Make sure all timers are cleared */
+ tcp_connection_timers_reset (tc);
+
+ stream_session_reset_notify (&tc->connection);
+ break;
+ case TCP_STATE_CLOSED:
+ return;
+ }
- stream_session_reset_notify (&tc->connection);
}
/**
--
cgit