tcp: make syn-rcvd timeout configurable

Type: improvement

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ic89570315a5c3c00e0e89c5535929313916869eb
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index 2362a8b..3d67800 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -197,6 +197,9 @@
   /** Time to wait (sec) before cleaning up the connection */
   f32 cleanup_time;
 
+  /** Time to wait (tcp ticks) for syn-rcvd connection to establish */
+  u32 syn_rcvd_time;
+
   /** Number of preallocated connections */
   u32 preallocated_connections;