From: Florin Coras <fcoras@cisco.com>
Date: Mon, 17 Dec 2018 05:33:00 +0000 (-0800)
Subject: tcp: cleanup connections if handshake fails
X-Git-Tag: v19.04-rc0~141
X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=commitdiff_plain;h=e78ac9debbe364f1bd6c59eb368d1f6bd38dfa32

tcp: cleanup connections if handshake fails

Change-Id: If109d6772cbd58f4f2a56ae7ec593639d1fa1b96
Signed-off-by: Florin Coras <fcoras@cisco.com>
---

diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index f0ae8b11434..91876feaf42 100644
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -2720,8 +2720,7 @@ tcp46_rcv_process_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
 	   */
 	  if (!tcp_rcv_ack_is_acceptable (tc0, b0))
 	    {
-	      TCP_DBG ("connection not accepted");
-	      tcp_send_reset_w_pkt (tc0, b0, is_ip4);
+	      tcp_connection_reset (tc0);
 	      error0 = TCP_ERROR_ACK_INVALID;
 	      goto drop;
 	    }
@@ -2729,8 +2728,8 @@ tcp46_rcv_process_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
 	  /* Make sure the ack is exactly right */
 	  if (tc0->rcv_nxt != vnet_buffer (b0)->tcp.seq_number || is_fin0)
 	    {
+	      tcp_connection_reset (tc0);
 	      error0 = TCP_ERROR_SEGMENT_INVALID;
-	      tcp_send_reset_w_pkt (tc0, b0, is_ip4);
 	      goto drop;
 	    }