From: Florin Coras <fcoras@cisco.com>
Date: Sat, 14 Oct 2023 22:22:04 +0000 (-0700)
Subject: tcp: handle syn-ack in fin-wait-2 in rcv process
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=dcb10ce353316a176b5c1c5475fda5edee588770;p=vpp.git

tcp: handle syn-ack in fin-wait-2 in rcv process

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: If74e04498423bed42593e79ec92482421cfda8d2
(cherry picked from commit 61d63e8323d11240edab44ff714def1c573fc987)
---

diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 3d8afaaba3d..1602b49b910 100644
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -3238,6 +3238,8 @@ do {                                                       	\
   _(FIN_WAIT_2, TCP_FLAG_RST | TCP_FLAG_ACK, TCP_INPUT_NEXT_RCV_PROCESS,
     TCP_ERROR_NONE);
   _(FIN_WAIT_2, TCP_FLAG_SYN, TCP_INPUT_NEXT_RCV_PROCESS, TCP_ERROR_NONE);
+  _ (FIN_WAIT_2, TCP_FLAG_SYN | TCP_FLAG_ACK, TCP_INPUT_NEXT_RCV_PROCESS,
+     TCP_ERROR_NONE);
   _(CLOSE_WAIT, TCP_FLAG_ACK, TCP_INPUT_NEXT_RCV_PROCESS, TCP_ERROR_NONE);
   _(CLOSE_WAIT, TCP_FLAG_FIN | TCP_FLAG_ACK, TCP_INPUT_NEXT_RCV_PROCESS,
     TCP_ERROR_NONE);