aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorFlorin Coras <fcoras@cisco.com>2020-03-26 02:45:39 +0000
committerDave Barach <openvpp@barachs.net>2020-04-02 11:27:33 +0000
commitdfd980fcffacc2bed90e53b9da669eac53025bb2 (patch)
treeeb86d369129064c8b4470818d96dc8bcc48cd632
parent883bf3d1a378dcf99837ce2491cf4e448dc498f6 (diff)
tcp: count zero wnd enqueue attempts
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: If22bad96a9102bc4058d52fc8565bd6a14c3c66c
-rwxr-xr-xsrc/vnet/tcp/tcp_input.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index bc11461b521..86158b9d6c6 100755
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -1942,6 +1942,10 @@ tcp_session_enqueue_data (tcp_connection_t * tc, vlib_buffer_t * b,
}
else
{
+ /* Packet made it through for ack processing */
+ if (tc->rcv_wnd < tc->snd_mss)
+ return TCP_ERROR_ZERO_RWND;
+
return TCP_ERROR_FIFO_FULL;
}